--- /dev/null
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Crypt_Blowfish allows for encryption and decryption on the fly using
+ * the Blowfish algorithm. Crypt_Blowfish does not require the mcrypt
+ * PHP extension, it uses only PHP.
+ * Crypt_Blowfish support encryption/decryption with or without a secret key.
+ *
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt. If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category Encryption
+ * @package Crypt_Blowfish
+ * @author Matthew Fonda <mfonda@php.net>
+ * @copyright 2005 Matthew Fonda
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @version CVS: $Id: Blowfish.php,v 1.81 2005/05/30 18:40:36 mfonda Exp $
+ * @link http://pear.php.net/package/Crypt_Blowfish
+ */
+
+
+require_once 'PEAR.php';
+
+
+/**
+ *
+ * Example usage:
+ * $bf = new Crypt_Blowfish('some secret key!');
+ * $encrypted = $bf->encrypt('this is some example plain text');
+ * $plaintext = $bf->decrypt($encrypted);
+ * echo "plain text: $plaintext";
+ *
+ *
+ * @category Encryption
+ * @package Crypt_Blowfish
+ * @author Matthew Fonda <mfonda@php.net>
+ * @copyright 2005 Matthew Fonda
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @link http://pear.php.net/package/Crypt_Blowfish
+ * @version @package_version@
+ * @access public
+ */
+class Crypt_Blowfish
+{
+ /**
+ * P-Array contains 18 32-bit subkeys
+ *
+ * @var array
+ * @access private
+ */
+ var $_P = array();
+
+
+ /**
+ * Array of four S-Blocks each containing 256 32-bit entries
+ *
+ * @var array
+ * @access private
+ */
+ var $_S = array();
+
+ /**
+ * Mcrypt td resource
+ *
+ * @var resource
+ * @access private
+ */
+ var $_td = null;
+
+ /**
+ * Initialization vector
+ *
+ * @var string
+ * @access private
+ */
+ var $_iv = null;
+
+
+ /**
+ * Crypt_Blowfish Constructor
+ * Initializes the Crypt_Blowfish object, and gives a sets
+ * the secret key
+ *
+ * @param string $key
+ * @access public
+ */
+ function Crypt_Blowfish($key)
+ {
+ if (extension_loaded('mcrypt')) {
+ $this->_td = mcrypt_module_open(MCRYPT_BLOWFISH, '', 'ecb', '');
+ $this->_iv = mcrypt_create_iv(8, MCRYPT_RAND);
+ }
+ $this->setKey($key);
+ }
+
+ /**
+ * Deprecated isReady method
+ *
+ * @return bool
+ * @access public
+ * @deprecated
+ */
+ function isReady()
+ {
+ return true;
+ }
+
+ /**
+ * Deprecated init method - init is now a private
+ * method and has been replaced with _init
+ *
+ * @return bool
+ * @access public
+ * @deprecated
+ * @see Crypt_Blowfish::_init()
+ */
+ function init()
+ {
+ $this->_init();
+ }
+
+ /**
+ * Initializes the Crypt_Blowfish object
+ *
+ * @access private
+ */
+ function _init()
+ {
+ $defaults = new Crypt_Blowfish_DefaultKey();
+ $this->_P = $defaults->P;
+ $this->_S = $defaults->S;
+ }
+
+ /**
+ * Enciphers a single 64 bit block
+ *
+ * @param int &$Xl
+ * @param int &$Xr
+ * @access private
+ */
+ function _encipher(&$Xl, &$Xr)
+ {
+ for ($i = 0; $i < 16; $i++) {
+ $temp = $Xl ^ $this->_P[$i];
+ $Xl = ((($this->_S[0][($temp>>24) & 255] +
+ $this->_S[1][($temp>>16) & 255]) ^
+ $this->_S[2][($temp>>8) & 255]) +
+ $this->_S[3][$temp & 255]) ^ $Xr;
+ $Xr = $temp;
+ }
+ $Xr = $Xl ^ $this->_P[16];
+ $Xl = $temp ^ $this->_P[17];
+ }
+
+
+ /**
+ * Deciphers a single 64 bit block
+ *
+ * @param int &$Xl
+ * @param int &$Xr
+ * @access private
+ */
+ function _decipher(&$Xl, &$Xr)
+ {
+ for ($i = 17; $i > 1; $i--) {
+ $temp = $Xl ^ $this->_P[$i];
+ $Xl = ((($this->_S[0][($temp>>24) & 255] +
+ $this->_S[1][($temp>>16) & 255]) ^
+ $this->_S[2][($temp>>8) & 255]) +
+ $this->_S[3][$temp & 255]) ^ $Xr;
+ $Xr = $temp;
+ }
+ $Xr = $Xl ^ $this->_P[1];
+ $Xl = $temp ^ $this->_P[0];
+ }
+
+
+ /**
+ * Encrypts a string
+ *
+ * @param string $plainText
+ * @return string Returns cipher text on success, PEAR_Error on failure
+ * @access public
+ */
+ function encrypt($plainText)
+ {
+ if (!is_string($plainText)) {
+ PEAR::raiseError('Plain text must be a string', 0, PEAR_ERROR_DIE);
+ }
+
+ if (extension_loaded('mcrypt')) {
+ return mcrypt_generic($this->_td, $plainText);
+ }
+
+ $cipherText = '';
+ $len = strlen($plainText);
+ $plainText .= str_repeat(chr(0),(8 - ($len%8))%8);
+ for ($i = 0; $i < $len; $i += 8) {
+ list(,$Xl,$Xr) = unpack("N2",substr($plainText,$i,8));
+ $this->_encipher($Xl, $Xr);
+ $cipherText .= pack("N2", $Xl, $Xr);
+ }
+ return $cipherText;
+ }
+
+
+ /**
+ * Decrypts an encrypted string
+ *
+ * @param string $cipherText
+ * @return string Returns plain text on success, PEAR_Error on failure
+ * @access public
+ */
+ function decrypt($cipherText)
+ {
+ if (!is_string($cipherText)) {
+ PEAR::raiseError('Cipher text must be a string', 1, PEAR_ERROR_DIE);
+ }
+
+ if (extension_loaded('mcrypt')) {
+ return mdecrypt_generic($this->_td, $cipherText);
+ }
+
+ $plainText = '';
+ $len = strlen($cipherText);
+ $cipherText .= str_repeat(chr(0),(8 - ($len%8))%8);
+ for ($i = 0; $i < $len; $i += 8) {
+ list(,$Xl,$Xr) = unpack("N2",substr($cipherText,$i,8));
+ $this->_decipher($Xl, $Xr);
+ $plainText .= pack("N2", $Xl, $Xr);
+ }
+ return $plainText;
+ }
+
+
+ /**
+ * Sets the secret key
+ * The key must be non-zero, and less than or equal to
+ * 56 characters in length.
+ *
+ * @param string $key
+ * @return bool Returns true on success, PEAR_Error on failure
+ * @access public
+ */
+ function setKey($key)
+ {
+ if (!is_string($key)) {
+ PEAR::raiseError('Key must be a string', 2, PEAR_ERROR_DIE);
+ }
+
+ $len = strlen($key);
+
+ if ($len > 56 || $len == 0) {
+ PEAR::raiseError('Key must be less than 56 characters and non-zero. Supplied key length: ' . $len, 3, PEAR_ERROR_DIE);
+ }
+
+ if (extension_loaded('mcrypt')) {
+ mcrypt_generic_init($this->_td, $key, $this->_iv);
+ return true;
+ }
+
+ require_once 'Blowfish/DefaultKey.php';
+ $this->_init();
+
+ $k = 0;
+ $data = 0;
+ $datal = 0;
+ $datar = 0;
+
+ for ($i = 0; $i < 18; $i++) {
+ $data = 0;
+ for ($j = 4; $j > 0; $j--) {
+ $data = $data << 8 | ord($key{$k});
+ $k = ($k+1) % $len;
+ }
+ $this->_P[$i] ^= $data;
+ }
+
+ for ($i = 0; $i <= 16; $i += 2) {
+ $this->_encipher($datal, $datar);
+ $this->_P[$i] = $datal;
+ $this->_P[$i+1] = $datar;
+ }
+ for ($i = 0; $i < 256; $i += 2) {
+ $this->_encipher($datal, $datar);
+ $this->_S[0][$i] = $datal;
+ $this->_S[0][$i+1] = $datar;
+ }
+ for ($i = 0; $i < 256; $i += 2) {
+ $this->_encipher($datal, $datar);
+ $this->_S[1][$i] = $datal;
+ $this->_S[1][$i+1] = $datar;
+ }
+ for ($i = 0; $i < 256; $i += 2) {
+ $this->_encipher($datal, $datar);
+ $this->_S[2][$i] = $datal;
+ $this->_S[2][$i+1] = $datar;
+ }
+ for ($i = 0; $i < 256; $i += 2) {
+ $this->_encipher($datal, $datar);
+ $this->_S[3][$i] = $datal;
+ $this->_S[3][$i+1] = $datar;
+ }
+
+ return true;
+ }
+
+}
+
+?>
--- /dev/null
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Crypt_Blowfish allows for encryption and decryption on the fly using
+ * the Blowfish algorithm. Crypt_Blowfish does not require the mcrypt
+ * PHP extension, it uses only PHP.
+ * Crypt_Blowfish support encryption/decryption with or without a secret key.
+ *
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt. If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category Encryption
+ * @package Crypt_Blowfish
+ * @author Matthew Fonda <mfonda@php.net>
+ * @copyright 2005 Matthew Fonda
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @version CVS: $Id: DefaultKey.php,v 1.81 2005/05/30 18:40:37 mfonda Exp $
+ * @link http://pear.php.net/package/Crypt_Blowfish
+ */
+
+
+/**
+ * Class containing default key
+ *
+ * @category Encryption
+ * @package Crypt_Blowfish
+ * @author Matthew Fonda <mfonda@php.net>
+ * @copyright 2005 Matthew Fonda
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @link http://pear.php.net/package/Crypt_Blowfish
+ * @version @package_version@
+ * @access public
+ */
+class Crypt_Blowfish_DefaultKey
+{
+ var $P = array();
+
+ var $S = array();
+
+ function Crypt_Blowfish_DefaultKey()
+ {
+ $this->P = array(
+ 0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
+ 0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
+ 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
+ 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
+ 0x9216D5D9, 0x8979FB1B
+ );
+
+ $this->S = array(
+ array(
+ 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
+ 0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
+ 0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
+ 0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
+ 0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
+ 0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
+ 0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
+ 0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
+ 0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
+ 0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
+ 0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
+ 0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
+ 0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
+ 0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
+ 0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
+ 0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
+ 0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
+ 0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
+ 0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
+ 0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
+ 0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
+ 0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
+ 0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
+ 0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
+ 0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
+ 0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
+ 0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
+ 0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
+ 0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
+ 0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
+ 0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
+ 0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
+ 0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
+ 0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
+ 0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
+ 0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
+ 0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
+ 0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
+ 0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
+ 0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
+ 0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
+ 0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
+ 0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
+ 0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
+ 0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
+ 0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
+ 0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
+ 0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
+ 0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
+ 0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
+ 0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
+ 0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
+ 0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
+ 0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
+ 0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
+ 0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
+ 0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
+ 0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
+ 0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
+ 0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
+ 0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
+ 0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
+ 0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
+ 0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A
+ ),
+ array(
+ 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623,
+ 0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
+ 0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
+ 0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
+ 0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6,
+ 0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
+ 0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E,
+ 0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
+ 0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
+ 0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
+ 0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF,
+ 0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
+ 0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701,
+ 0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
+ 0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41,
+ 0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
+ 0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF,
+ 0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
+ 0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E,
+ 0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
+ 0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C,
+ 0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
+ 0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16,
+ 0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
+ 0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B,
+ 0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
+ 0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
+ 0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
+ 0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F,
+ 0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
+ 0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4,
+ 0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
+ 0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66,
+ 0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
+ 0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802,
+ 0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
+ 0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510,
+ 0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
+ 0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14,
+ 0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
+ 0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50,
+ 0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
+ 0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8,
+ 0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
+ 0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
+ 0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
+ 0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128,
+ 0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
+ 0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0,
+ 0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
+ 0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105,
+ 0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
+ 0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3,
+ 0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
+ 0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00,
+ 0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
+ 0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB,
+ 0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
+ 0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735,
+ 0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
+ 0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9,
+ 0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
+ 0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
+ 0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7
+ ),
+ array(
+ 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934,
+ 0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
+ 0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF,
+ 0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
+ 0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45,
+ 0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
+ 0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A,
+ 0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
+ 0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
+ 0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
+ 0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42,
+ 0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
+ 0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2,
+ 0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
+ 0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527,
+ 0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
+ 0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33,
+ 0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
+ 0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3,
+ 0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
+ 0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17,
+ 0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
+ 0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B,
+ 0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
+ 0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922,
+ 0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
+ 0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
+ 0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
+ 0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37,
+ 0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
+ 0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804,
+ 0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
+ 0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3,
+ 0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
+ 0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D,
+ 0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
+ 0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350,
+ 0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
+ 0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A,
+ 0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
+ 0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D,
+ 0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
+ 0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F,
+ 0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
+ 0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
+ 0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
+ 0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2,
+ 0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
+ 0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E,
+ 0xB77F19B6, 0xE0A9DC09, 0x662D09A1, 0xC4324633,
+ 0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10,
+ 0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169,
+ 0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52,
+ 0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
+ 0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5,
+ 0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62,
+ 0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634,
+ 0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76,
+ 0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24,
+ 0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC,
+ 0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4,
+ 0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C,
+ 0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837,
+ 0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0
+ ),
+ array(
+ 0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B,
+ 0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE,
+ 0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B,
+ 0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4,
+ 0x5748AB2F, 0xBC946E79, 0xC6A376D2, 0x6549C2C8,
+ 0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6,
+ 0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304,
+ 0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22,
+ 0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4,
+ 0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6,
+ 0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9,
+ 0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59,
+ 0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593,
+ 0xE990FD5A, 0x9E34D797, 0x2CF0B7D9, 0x022B8B51,
+ 0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28,
+ 0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C,
+ 0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B,
+ 0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
+ 0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C,
+ 0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD,
+ 0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A,
+ 0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319,
+ 0x7533D928, 0xB155FDF5, 0x03563482, 0x8ABA3CBB,
+ 0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F,
+ 0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991,
+ 0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32,
+ 0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680,
+ 0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166,
+ 0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE,
+ 0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB,
+ 0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5,
+ 0x72EACEA8, 0xFA6484BB, 0x8D6612AE, 0xBF3C6F47,
+ 0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370,
+ 0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D,
+ 0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84,
+ 0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
+ 0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8,
+ 0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD,
+ 0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9,
+ 0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7,
+ 0x1A908749, 0xD44FBD9A, 0xD0DADECB, 0xD50ADA38,
+ 0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F,
+ 0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C,
+ 0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525,
+ 0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1,
+ 0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442,
+ 0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964,
+ 0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E,
+ 0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8,
+ 0xDF359F8D, 0x9B992F2E, 0xE60B6F47, 0x0FE3F11D,
+ 0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F,
+ 0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299,
+ 0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02,
+ 0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
+ 0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614,
+ 0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A,
+ 0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6,
+ 0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B,
+ 0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0,
+ 0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060,
+ 0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E,
+ 0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9,
+ 0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F,
+ 0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6
+ )
+ );
+ }
+
+}
+
+?>
--- /dev/null
+<?php
+
+/**
+ * Copyright (c) 2013, Sam Tuke <samtuke@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ *
+ * @brief Script to handle admin settings for encrypted key recovery
+ */
+use OCA\Encryption;
+
+\OCP\JSON::checkAdminUser();
+\OCP\JSON::checkAppEnabled('files_encryption');
+\OCP\JSON::callCheck();
+
+$l=OC_L10N::get('files_encryption');
+
+$return = false;
+
+// Enable recoveryAdmin
+
+$recoveryKeyId = OC_Appconfig::getValue('files_encryption', 'recoveryKeyId');
+
+if (isset($_POST['adminEnableRecovery']) && $_POST['adminEnableRecovery'] == 1){
+
+ $return = \OCA\Encryption\Helper::adminEnableRecovery($recoveryKeyId, $_POST['recoveryPassword']);
+ $action = "enable";
+
+// Disable recoveryAdmin
+} elseif (
+ isset($_POST['adminEnableRecovery'])
+ && 0 == $_POST['adminEnableRecovery']
+) {
+ $return = \OCA\Encryption\Helper::adminDisableRecovery($_POST['recoveryPassword']);
+ $action = "disable";
+}
+
+// Return success or failure
+if ($return) {
+ \OCP\JSON::success(array("data" => array( "message" => $l->t('Recovery key successfully ' . $action.'d'))));
+} else {
+ \OCP\JSON::error(array("data" => array( "message" => $l->t('Could not '.$action.' recovery key. Please check your recovery key password!'))));
+}
--- /dev/null
+<?php
+
+/**
+ * Copyright (c) 2013, Bjoern Schiessle <schiessle@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ *
+ * @brief Script to change recovery key password
+ *
+ */
+
+use OCA\Encryption;
+
+\OCP\JSON::checkAdminUser();
+\OCP\JSON::checkAppEnabled('files_encryption');
+\OCP\JSON::callCheck();
+
+$l=OC_L10N::get('core');
+
+$return = false;
+
+$oldPassword = $_POST['oldPassword'];
+$newPassword = $_POST['newPassword'];
+
+$util = new \OCA\Encryption\Util(new \OC_FilesystemView('/'), \OCP\User::getUser());
+
+$result = $util->checkRecoveryPassword($oldPassword);
+
+if ($result) {
+ $keyId = $util->getRecoveryKeyId();
+ $keyPath = '/owncloud_private_key/' . $keyId . ".private.key";
+ $view = new \OC\Files\View('/');
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $encryptedRecoveryKey = $view->file_get_contents($keyPath);
+ $decryptedRecoveryKey = \OCA\Encryption\Crypt::symmetricDecryptFileContent($encryptedRecoveryKey, $oldPassword);
+ $encryptedRecoveryKey = \OCA\Encryption\Crypt::symmetricEncryptFileContent($decryptedRecoveryKey, $newPassword);
+ $view->file_put_contents($keyPath, $encryptedRecoveryKey);
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ $return = true;
+}
+
+// success or failure
+if ($return) {
+ \OCP\JSON::success(array("data" => array( "message" => $l->t('Password successfully changed.'))));
+} else {
+ \OCP\JSON::error(array("data" => array( "message" => $l->t('Could not change the password. Maybe the old password was not correct.'))));
+}
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2013, Sam Tuke <samtuke@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ *
+ * @brief Script to handle admin settings for encrypted key recovery
+ */
+
+use OCA\Encryption;
+
+\OCP\JSON::checkLoggedIn();
+\OCP\JSON::checkAppEnabled( 'files_encryption' );
+\OCP\JSON::callCheck();
+
+if (
+ isset( $_POST['userEnableRecovery'] )
+ && ( 0 == $_POST['userEnableRecovery'] || 1 == $_POST['userEnableRecovery'] )
+) {
+
+ $userId = \OCP\USER::getUser();
+ $view = new \OC_FilesystemView( '/' );
+ $util = new \OCA\Encryption\Util( $view, $userId );
+
+ // Save recovery preference to DB
+ $return = $util->setRecoveryForUser( $_POST['userEnableRecovery'] );
+
+ if ($_POST['userEnableRecovery'] == "1") {
+ $util->addRecoveryKeys();
+ } else {
+ $util->removeRecoveryKeys();
+ }
+
+} else {
+
+ $return = false;
+
+}
+
+// Return success or failure
+( $return ) ? \OCP\JSON::success() : \OCP\JSON::error();
\ No newline at end of file
--- /dev/null
+<?php
+
+OC::$CLASSPATH['OCA\Encryption\Crypt'] = 'files_encryption/lib/crypt.php';
+OC::$CLASSPATH['OCA\Encryption\Hooks'] = 'files_encryption/hooks/hooks.php';
+OC::$CLASSPATH['OCA\Encryption\Util'] = 'files_encryption/lib/util.php';
+OC::$CLASSPATH['OCA\Encryption\Keymanager'] = 'files_encryption/lib/keymanager.php';
+OC::$CLASSPATH['OCA\Encryption\Stream'] = 'files_encryption/lib/stream.php';
+OC::$CLASSPATH['OCA\Encryption\Proxy'] = 'files_encryption/lib/proxy.php';
+OC::$CLASSPATH['OCA\Encryption\Session'] = 'files_encryption/lib/session.php';
+OC::$CLASSPATH['OCA\Encryption\Capabilities'] = 'files_encryption/lib/capabilities.php';
+OC::$CLASSPATH['OCA\Encryption\Helper'] = 'files_encryption/lib/helper.php';
+
+OC_FileProxy::register( new OCA\Encryption\Proxy() );
+
+// User related hooks
+OCA\Encryption\Helper::registerUserHooks();
+
+// Sharing related hooks
+OCA\Encryption\Helper::registerShareHooks();
+
+// Filesystem related hooks
+OCA\Encryption\Helper::registerFilesystemHooks();
+
+stream_wrapper_register( 'crypt', 'OCA\Encryption\Stream' );
+
+// check if we are logged in
+if (OCP\User::isLoggedIn()) {
+ $view = new OC_FilesystemView('/');
+ $session = new \OCA\Encryption\Session($view);
+
+ // check if user has a private key
+ if (
+ !$session->getPrivateKey(\OCP\USER::getUser())
+ && OCA\Encryption\Crypt::mode() === 'server'
+ ) {
+
+ // Force the user to log-in again if the encryption key isn't unlocked
+ // (happens when a user is logged in before the encryption app is
+ // enabled)
+ OCP\User::logout();
+
+ header("Location: " . OC::$WEBROOT . '/');
+
+ exit();
+ }
+}
+
+// Register settings scripts
+OCP\App::registerAdmin( 'files_encryption', 'settings-admin' );
+OCP\App::registerPersonal( 'files_encryption', 'settings-personal' );
+
--- /dev/null
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<database>
+ <name>*dbname*</name>
+ <create>true</create>
+ <overwrite>false</overwrite>
+ <charset>utf8</charset>
+ <table>
+ <name>*dbprefix*encryption</name>
+ <declaration>
+ <field>
+ <name>uid</name>
+ <type>text</type>
+ <notnull>true</notnull>
+ <length>64</length>
+ </field>
+ <field>
+ <name>mode</name>
+ <type>text</type>
+ <notnull>true</notnull>
+ <length>64</length>
+ <comments>What client-side / server-side configuration is used</comments>
+ </field>
+ <field>
+ <name>recovery_enabled</name>
+ <type>integer</type>
+ <notnull>true</notnull>
+ <default>0</default>
+ <comments>Whether encryption key recovery is enabled</comments>
+ </field>
+ <field>
+ <name>migration_status</name>
+ <type>integer</type>
+ <notnull>true</notnull>
+ <default>0</default>
+ <comments>Whether encryption migration has been performed</comments>
+ </field>
+ </declaration>
+ </table>
+</database>
\ No newline at end of file
--- /dev/null
+<?xml version="1.0"?>
+<info>
+ <id>files_encryption</id>
+ <name>Encryption</name>
+ <description>Server side encryption of files. Warning: You will lose your data if you enable this App and forget your password. Encryption is not yet compatible with LDAP.</description>
+ <licence>AGPL</licence>
+ <author>Sam Tuke, Bjoern Schiessle, Florin Peter</author>
+ <require>4</require>
+ <shipped>true</shipped>
+ <types>
+ <filesystem/>
+ </types>
+</info>
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2013, Tom Needham <tom@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ */
+
+// Register with the capabilities API
+OC_API::register('get', '/cloud/capabilities', array('OCA\Encryption\Capabilities', 'getCapabilities'), 'files_encryption', OC_API::USER_AUTH);
\ No newline at end of file
--- /dev/null
+Encrypted files
+---------------
+
+- Each encrypted file has at least two components: the encrypted data file
+ ('catfile'), and it's corresponding key file ('keyfile'). Shared files have an
+ additional key file ('share key'). The catfile contains the encrypted data
+ concatenated with delimiter text, followed by the initialisation vector ('IV'),
+ and padding. e.g.:
+
+ [encrypted data string][delimiter][IV][padding]
+ [anhAAjAmcGXqj1X9g==][00iv00][MSHU5N5gECP7aAg7][xx] (square braces added)
+
+- Directory structure:
+ - Encrypted user data (catfiles) are stored in the usual /data/user/files dir
+ - Keyfiles are stored in /data/user/files_encryption/keyfiles
+ - Sharekey are stored in /data/user/files_encryption/share-files
+
+- File extensions:
+ - Catfiles have to keep the file extension of the original file, pre-encryption
+ - Keyfiles use .keyfile
+ - Sharekeys have .shareKey
+
+Shared files
+------------
+
+Shared files have a centrally stored catfile and keyfile, and one sharekey for
+each user that shares it.
+
+When sharing is used, a different encryption method is used to encrypt the
+keyfile (openssl_seal). Although shared files have a keyfile, its contents
+use a different format therefore.
+
+Each time a shared file is edited or deleted, all sharekeys for users sharing
+that file must have their sharekeys changed also. The keyfile and catfile
+however need only changing in the owners files, as there is only one copy of
+these.
+
+Publicly shared files (public links)
+------------------------------------
+
+Files shared via public links use a separate system user account called 'ownCloud'. All public files are shared to that user's public key, and the private key is used to access the files when the public link is used in browser.
+
+This means that files shared via public links are accessible only to users who know the shared URL, or to admins who know the 'ownCloud' user password.
+
+Lost password recovery
+----------------------
+
+In order to enable users to read their encrypted files in the event of a password loss/reset scenario, administrators can choose to enable a 'recoveryAdmin' account. This is a user that all user files will automatically be shared to of the option is enabled. This allows the recoveryAdmin user to generate new keyfiles for the user. By default the UID of the recoveryAdmin is 'recoveryAdmin'.
+
+OC_FilesystemView
+-----------------
+
+files_encryption deals extensively with paths and the filesystem. In order to minimise bugs, it makes calls to filesystem methods in a consistent way: OC_FilesystemView{} objects always use '/' as their root, and specify paths each time particular methods are called. e.g. do this:
+
+$view->file_exists( 'path/to/file' );
+
+Not:
+
+$view->chroot( 'path/to' );
+$view->file_exists( 'file' );
+
+Using this convention means that $view objects are more predictable and less likely to break. Problems with paths are the #1 cause of bugs in this app, and consistent $view handling is an important way to prevent them.
+
+Notes
+-----
+
+- The user passphrase is required in order to set up or upgrade the app. New
+ keypair generation, and the re-encryption of legacy encrypted files requires
+ it. Therefore an appinfo/update.php script cannot be used, and upgrade logic
+ is handled in the login hook listener. Therefore each time the user logs in
+ their files are scanned to detect unencrypted and legacy encrypted files, and
+ they are (re)encrypted as necessary. This may present a performance issue; we
+ need to monitor this.
+- When files are saved to ownCloud via WebDAV, a .part file extension is used so
+ that the file isn't cached before the upload has been completed. .part files
+ are not compatible with files_encrytion's key management system however, so
+ we have to always sanitise such paths manually before using them.
\ No newline at end of file
--- /dev/null
+0.3
\ No newline at end of file
--- /dev/null
+/* Copyright (c) 2013, Sam Tuke, <samtuke@owncloud.com>
+ This file is licensed under the Affero General Public License version 3 or later.
+ See the COPYING-README file. */
+
+#encryptAllError
+, #encryptAllSuccess
+, #recoveryEnabledError
+, #recoveryEnabledSuccess {
+ display: none;
+}
\ No newline at end of file
--- /dev/null
+<?php\r
+\r
+/**\r
+ * ownCloud\r
+ *\r
+ * @author Sam Tuke\r
+ * @copyright 2012 Sam Tuke samtuke@owncloud.org\r
+ *\r
+ * This library is free software; you can redistribute it and/or\r
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE\r
+ * License as published by the Free Software Foundation; either\r
+ * version 3 of the License, or any later version.\r
+ *\r
+ * This library is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.\r
+ *\r
+ * You should have received a copy of the GNU Affero General Public\r
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.\r
+ *\r
+ */\r
+\r
+namespace OCA\Encryption;\r
+\r
+use OC\Files\Filesystem;\r
+\r
+/**\r
+ * Class for hook specific logic\r
+ */\r
+class Hooks {\r
+\r
+ // TODO: use passphrase for encrypting private key that is separate to \r
+ // the login password\r
+\r
+ /**\r
+ * @brief Startup encryption backend upon user login\r
+ * @note This method should never be called for users using client side encryption\r
+ */\r
+ public static function login( $params ) {\r
+ \r
+ // Manually initialise Filesystem{} singleton with correct \r
+ // fake root path, in order to avoid fatal webdav errors\r
+ // NOTE: disabled because this give errors on webdav!\r
+ //\OC\Files\Filesystem::init( $params['uid'], '/' . 'files' . '/' );\r
+ \r
+ $view = new \OC_FilesystemView( '/' );\r
+\r
+ $util = new Util( $view, $params['uid'] );\r
+\r
+ // setup user, if user not ready force relogin\r
+ if(Helper::setupUser($util, $params['password']) === false) {\r
+ return false;\r
+ }\r
+\r
+ $encryptedKey = Keymanager::getPrivateKey( $view, $params['uid'] );\r
+ \r
+ $privateKey = Crypt::symmetricDecryptFileContent( $encryptedKey, $params['password'] );\r
+\r
+ $session = new Session( $view );\r
+ \r
+ $session->setPrivateKey( $privateKey, $params['uid'] );\r
+ \r
+ // Check if first-run file migration has already been performed\r
+ $migrationCompleted = $util->getMigrationStatus();\r
+ \r
+ // If migration not yet done\r
+ if ( ! $migrationCompleted ) {\r
+ \r
+ $userView = new \OC_FilesystemView( '/' . $params['uid'] );\r
+ \r
+ // Set legacy encryption key if it exists, to support \r
+ // depreciated encryption system\r
+ if (\r
+ $userView->file_exists( 'encryption.key' )\r
+ && $encLegacyKey = $userView->file_get_contents( 'encryption.key' )\r
+ ) {\r
+ \r
+ $plainLegacyKey = Crypt::legacyDecrypt( $encLegacyKey, $params['password'] );\r
+ \r
+ $session->setLegacyKey( $plainLegacyKey );\r
+ \r
+ }\r
+\r
+ $publicKey = Keymanager::getPublicKey( $view, $params['uid'] );\r
+ \r
+ // Encrypt existing user files:\r
+ // This serves to upgrade old versions of the encryption\r
+ // app (see appinfo/spec.txt)\r
+ if (\r
+ $util->encryptAll( '/' . $params['uid'] . '/' . 'files', $session->getLegacyKey(), $params['password'] )\r
+ ) {\r
+ \r
+ \OC_Log::write( \r
+ 'Encryption library', 'Encryption of existing files belonging to "' . $params['uid'] . '" completed'\r
+ , \OC_Log::INFO \r
+ );\r
+ \r
+ }\r
+\r
+ // Register successful migration in DB\r
+ $util->setMigrationStatus( 1 );\r
+ \r
+ }\r
+\r
+ return true;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief setup encryption backend upon user created\r
+ * @note This method should never be called for users using client side encryption\r
+ */\r
+ public static function postCreateUser( $params ) {\r
+ $view = new \OC_FilesystemView( '/' );\r
+\r
+ $util = new Util( $view, $params['uid'] );\r
+\r
+ Helper::setupUser($util, $params['password']);\r
+ }\r
+\r
+ /**\r
+ * @brief cleanup encryption backend upon user deleted\r
+ * @note This method should never be called for users using client side encryption\r
+ */\r
+ public static function postDeleteUser( $params ) {\r
+ $view = new \OC_FilesystemView( '/' );\r
+\r
+ // cleanup public key\r
+ $publicKey = '/public-keys/' . $params['uid'] . '.public.key';\r
+\r
+ // Disable encryption proxy to prevent recursive calls\r
+ $proxyStatus = \OC_FileProxy::$enabled;\r
+ \OC_FileProxy::$enabled = false;\r
+\r
+ $view->unlink($publicKey);\r
+\r
+ \OC_FileProxy::$enabled = $proxyStatus;\r
+ }\r
+\r
+ /**\r
+ * @brief Change a user's encryption passphrase\r
+ * @param array $params keys: uid, password\r
+ */\r
+ public static function setPassphrase($params) {\r
+\r
+ // Only attempt to change passphrase if server-side encryption\r
+ // is in use (client-side encryption does not have access to \r
+ // the necessary keys)\r
+ if (Crypt::mode() == 'server') {\r
+\r
+ if ($params['uid'] == \OCP\User::getUser()) {\r
+\r
+ $view = new \OC_FilesystemView('/');\r
+\r
+ $session = new Session($view);\r
+\r
+ // Get existing decrypted private key\r
+ $privateKey = $session->getPrivateKey();\r
+\r
+ // Encrypt private key with new user pwd as passphrase\r
+ $encryptedPrivateKey = Crypt::symmetricEncryptFileContent($privateKey, $params['password']);\r
+\r
+ // Save private key\r
+ Keymanager::setPrivateKey($encryptedPrivateKey);\r
+\r
+ // NOTE: Session does not need to be updated as the\r
+ // private key has not changed, only the passphrase\r
+ // used to decrypt it has changed\r
+ \r
+ \r
+ } else { // admin changed the password for a different user, create new keys and reencrypt file keys\r
+ \r
+ $user = $params['uid'];\r
+ $recoveryPassword = $params['recoveryPassword'];\r
+ $newUserPassword = $params['password'];\r
+\r
+ $view = new \OC_FilesystemView('/');\r
+\r
+ // make sure that the users home is mounted\r
+ \OC\Files\Filesystem::initMountPoints($user);\r
+\r
+ $keypair = Crypt::createKeypair();\r
+ \r
+ // Disable encryption proxy to prevent recursive calls\r
+ $proxyStatus = \OC_FileProxy::$enabled;\r
+ \OC_FileProxy::$enabled = false;\r
+\r
+ // Save public key\r
+ $view->file_put_contents( '/public-keys/'.$user.'.public.key', $keypair['publicKey'] );\r
+\r
+ // Encrypt private key empty passphrase\r
+ $encryptedPrivateKey = Crypt::symmetricEncryptFileContent( $keypair['privateKey'], $newUserPassword );\r
+\r
+ // Save private key\r
+ $view->file_put_contents( '/'.$user.'/files_encryption/'.$user.'.private.key', $encryptedPrivateKey );\r
+\r
+ if ( $recoveryPassword ) { // if recovery key is set we can re-encrypt the key files\r
+ $util = new Util($view, $user);\r
+ $util->recoverUsersFiles($recoveryPassword);\r
+ }\r
+\r
+ \OC_FileProxy::$enabled = $proxyStatus;\r
+ }\r
+ }\r
+ }\r
+\r
+ /*\r
+ * @brief check if files can be encrypted to every user.\r
+ */\r
+ /**\r
+ * @param $params\r
+ */\r
+ public static function preShared($params) {\r
+\r
+ $users = array();\r
+ $view = new \OC\Files\View('/public-keys/');\r
+\r
+ switch ($params['shareType']) {\r
+ case \OCP\Share::SHARE_TYPE_USER:\r
+ $users[] = $params['shareWith'];\r
+ break;\r
+ case \OCP\Share::SHARE_TYPE_GROUP:\r
+ $users = \OC_Group::usersInGroup($params['shareWith']);\r
+ break;\r
+ }\r
+\r
+ $error = false;\r
+ foreach ($users as $user) {\r
+ if (!$view->file_exists($user . '.public.key')) {\r
+ $error = true;\r
+ break;\r
+ }\r
+ }\r
+\r
+ if($error)\r
+ // Set flag var 'run' to notify emitting\r
+ // script that hook execution failed\r
+ $params['run']->run = false;\r
+ // TODO: Make sure files_sharing provides user\r
+ // feedback on failed share\r
+ }\r
+\r
+ /**\r
+ * @brief \r
+ */\r
+ public static function postShared($params) {\r
+\r
+ // NOTE: $params has keys:\r
+ // [itemType] => file\r
+ // itemSource -> int, filecache file ID\r
+ // [parent] => \r
+ // [itemTarget] => /13\r
+ // shareWith -> string, uid of user being shared to\r
+ // fileTarget -> path of file being shared\r
+ // uidOwner -> owner of the original file being shared\r
+ // [shareType] => 0\r
+ // [shareWith] => test1\r
+ // [uidOwner] => admin\r
+ // [permissions] => 17\r
+ // [fileSource] => 13\r
+ // [fileTarget] => /test8\r
+ // [id] => 10\r
+ // [token] =>\r
+ // [run] => whether emitting script should continue to run\r
+ // TODO: Should other kinds of item be encrypted too?\r
+\r
+ if ($params['itemType'] === 'file' || $params['itemType'] === 'folder') {\r
+\r
+ $view = new \OC_FilesystemView('/');\r
+ $session = new Session($view);\r
+ $userId = \OCP\User::getUser();\r
+ $util = new Util($view, $userId);\r
+ $path = $util->fileIdToPath($params['itemSource']);\r
+\r
+ $share = $util->getParentFromShare($params['id']);\r
+ //if parent is set, then this is a re-share action\r
+ if ($share['parent'] != null) {\r
+\r
+ // get the parent from current share\r
+ $parent = $util->getShareParent($params['parent']);\r
+\r
+ // if parent is file the it is an 1:1 share\r
+ if ($parent['item_type'] === 'file') {\r
+\r
+ // prefix path with Shared\r
+ $path = '/Shared' . $parent['file_target'];\r
+ } else {\r
+\r
+ // NOTE: parent is folder but shared was a file!\r
+ // we try to rebuild the missing path\r
+ // some examples we face here\r
+ // user1 share folder1 with user2 folder1 has \r
+ // the following structure \r
+ // /folder1/subfolder1/subsubfolder1/somefile.txt\r
+ // user2 re-share subfolder2 with user3\r
+ // user3 re-share somefile.txt user4\r
+ // so our path should be \r
+ // /Shared/subfolder1/subsubfolder1/somefile.txt \r
+ // while user3 is sharing\r
+\r
+ if ($params['itemType'] === 'file') {\r
+ // get target path\r
+ $targetPath = $util->fileIdToPath($params['fileSource']);\r
+ $targetPathSplit = array_reverse(explode('/', $targetPath));\r
+\r
+ // init values\r
+ $path = '';\r
+ $sharedPart = ltrim($parent['file_target'], '/');\r
+\r
+ // rebuild path\r
+ foreach ($targetPathSplit as $pathPart) {\r
+ if ($pathPart !== $sharedPart) {\r
+ $path = '/' . $pathPart . $path;\r
+ } else {\r
+ break;\r
+ }\r
+ }\r
+ // prefix path with Shared\r
+ $path = '/Shared' . $parent['file_target'] . $path;\r
+ } else {\r
+ // prefix path with Shared\r
+ $path = '/Shared' . $parent['file_target'] . $params['fileTarget'];\r
+ }\r
+ }\r
+ }\r
+\r
+ $sharingEnabled = \OCP\Share::isEnabled();\r
+\r
+ // if a folder was shared, get a list of all (sub-)folders\r
+ if ($params['itemType'] === 'folder') {\r
+ $allFiles = $util->getAllFiles($path);\r
+ } else {\r
+ $allFiles = array($path);\r
+ }\r
+\r
+ foreach ($allFiles as $path) {\r
+ $usersSharing = $util->getSharingUsersArray($sharingEnabled, $path);\r
+ $util->setSharedFileKeyfiles( $session, $usersSharing, $path );\r
+ }\r
+ }\r
+ }\r
+ \r
+ /**\r
+ * @brief \r
+ */\r
+ public static function postUnshare( $params ) {\r
+\r
+ // NOTE: $params has keys:\r
+ // [itemType] => file\r
+ // [itemSource] => 13\r
+ // [shareType] => 0\r
+ // [shareWith] => test1\r
+ // [itemParent] =>\r
+\r
+ if ( $params['itemType'] === 'file' || $params['itemType'] === 'folder' ) {\r
+\r
+ $view = new \OC_FilesystemView( '/' );\r
+ $userId = \OCP\User::getUser();\r
+ $util = new Util( $view, $userId);\r
+ $path = $util->fileIdToPath( $params['itemSource'] );\r
+\r
+ // check if this is a re-share\r
+ if ( $params['itemParent'] ) {\r
+\r
+ // get the parent from current share\r
+ $parent = $util->getShareParent( $params['itemParent'] );\r
+\r
+ // get target path\r
+ $targetPath = $util->fileIdToPath( $params['itemSource'] );\r
+ $targetPathSplit = array_reverse( explode( '/', $targetPath ) );\r
+\r
+ // init values\r
+ $path = '';\r
+ $sharedPart = ltrim( $parent['file_target'], '/' );\r
+\r
+ // rebuild path\r
+ foreach ( $targetPathSplit as $pathPart ) {\r
+ \r
+ if ( $pathPart !== $sharedPart ) {\r
+ \r
+ $path = '/' . $pathPart . $path;\r
+ \r
+ } else {\r
+ \r
+ break;\r
+ \r
+ }\r
+ \r
+ }\r
+\r
+ // prefix path with Shared\r
+ $path = '/Shared' . $parent['file_target'] . $path;\r
+ }\r
+\r
+ // for group shares get a list of the group members\r
+ if ( $params['shareType'] == \OCP\Share::SHARE_TYPE_GROUP ) {\r
+ $userIds = \OC_Group::usersInGroup($params['shareWith']);\r
+ } else if ( $params['shareType'] == \OCP\Share::SHARE_TYPE_LINK ){\r
+ $userIds = array( $util->getPublicShareKeyId() );\r
+ } else {\r
+ $userIds = array( $params['shareWith'] );\r
+ }\r
+\r
+ // if we unshare a folder we need a list of all (sub-)files\r
+ if ( $params['itemType'] === 'folder' ) {\r
+ \r
+ $allFiles = $util->getAllFiles( $path );\r
+ \r
+ } else {\r
+ \r
+ $allFiles = array( $path );\r
+ }\r
+\r
+ foreach ( $allFiles as $path ) {\r
+\r
+ // check if the user still has access to the file, otherwise delete share key\r
+ $sharingUsers = $util->getSharingUsersArray( true, $path );\r
+\r
+ // Unshare every user who no longer has access to the file\r
+ $delUsers = array_diff( $userIds, $sharingUsers);\r
+\r
+ // delete share key\r
+ Keymanager::delShareKey( $view, $delUsers, $path );\r
+ }\r
+\r
+ }\r
+ }\r
+ \r
+ /**\r
+ * @brief after a file is renamed, rename its keyfile and share-keys also fix the file size and fix also the sharing\r
+ * @param array with oldpath and newpath\r
+ *\r
+ * This function is connected to the rename signal of OC_Filesystem and adjust the name and location\r
+ * of the stored versions along the actual file\r
+ */\r
+ public static function postRename($params) {\r
+ // Disable encryption proxy to prevent recursive calls\r
+ $proxyStatus = \OC_FileProxy::$enabled;\r
+ \OC_FileProxy::$enabled = false;\r
+\r
+ $view = new \OC_FilesystemView('/');\r
+ $session = new Session($view);\r
+ $userId = \OCP\User::getUser();\r
+ $util = new Util( $view, $userId );\r
+\r
+ // Format paths to be relative to user files dir\r
+ $oldKeyfilePath = \OC\Files\Filesystem::normalizePath($userId . '/' . 'files_encryption' . '/' . 'keyfiles' . '/' . $params['oldpath']);\r
+ $newKeyfilePath = \OC\Files\Filesystem::normalizePath($userId . '/' . 'files_encryption' . '/' . 'keyfiles' . '/' . $params['newpath']);\r
+\r
+ // add key ext if this is not an folder\r
+ if (!$view->is_dir($oldKeyfilePath)) {\r
+ $oldKeyfilePath .= '.key';\r
+ $newKeyfilePath .= '.key';\r
+\r
+ // handle share-keys\r
+ $localKeyPath = $view->getLocalFile($userId.'/files_encryption/share-keys/'.$params['oldpath']);\r
+ $matches = glob(preg_quote($localKeyPath).'*.shareKey');\r
+ foreach ($matches as $src) {\r
+ $dst = \OC\Files\Filesystem::normalizePath(str_replace($params['oldpath'], $params['newpath'], $src));\r
+\r
+ // create destination folder if not exists\r
+ if(!file_exists(dirname($dst))) {\r
+ mkdir(dirname($dst), 0750, true);\r
+ }\r
+\r
+ rename($src, $dst);\r
+ }\r
+\r
+ } else {\r
+ // handle share-keys folders\r
+ $oldShareKeyfilePath = \OC\Files\Filesystem::normalizePath($userId . '/' . 'files_encryption' . '/' . 'share-keys' . '/' . $params['oldpath']);\r
+ $newShareKeyfilePath = \OC\Files\Filesystem::normalizePath($userId . '/' . 'files_encryption' . '/' . 'share-keys' . '/' . $params['newpath']);\r
+\r
+ // create destination folder if not exists\r
+ if(!$view->file_exists(dirname($newShareKeyfilePath))) {\r
+ $view->mkdir(dirname($newShareKeyfilePath), 0750, true);\r
+ }\r
+\r
+ $view->rename($oldShareKeyfilePath, $newShareKeyfilePath);\r
+ }\r
+\r
+ // Rename keyfile so it isn't orphaned\r
+ if($view->file_exists($oldKeyfilePath)) {\r
+\r
+ // create destination folder if not exists\r
+ if(!$view->file_exists(dirname($newKeyfilePath))) {\r
+ $view->mkdir(dirname($newKeyfilePath), 0750, true);\r
+ }\r
+\r
+ $view->rename($oldKeyfilePath, $newKeyfilePath);\r
+ }\r
+\r
+ // build the path to the file\r
+ $newPath = '/' . $userId . '/files' .$params['newpath'];\r
+ $newPathRelative = $params['newpath'];\r
+\r
+ if($util->fixFileSize($newPath)) {\r
+ // get sharing app state\r
+ $sharingEnabled = \OCP\Share::isEnabled();\r
+\r
+ // get users\r
+ $usersSharing = $util->getSharingUsersArray($sharingEnabled, $newPathRelative);\r
+\r
+ // update sharing-keys\r
+ $util->setSharedFileKeyfiles($session, $usersSharing, $newPathRelative);\r
+ }\r
+\r
+ \OC_FileProxy::$enabled = $proxyStatus;\r
+ }\r
+}\r
--- /dev/null
+/**
+ * Copyright (c) 2013, Sam Tuke <samtuke@owncloud.com>, Robin Appelman
+ * <icewind1991@gmail.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ */
+
+OC.msg={
+ startSaving:function(selector){
+ $(selector)
+ .html( t('settings', 'Saving...') )
+ .removeClass('success')
+ .removeClass('error')
+ .stop(true, true)
+ .show();
+ },
+ finishedSaving:function(selector, data){
+ if( data.status === "success" ){
+ $(selector).html( data.data.message )
+ .addClass('success')
+ .stop(true, true)
+ .delay(3000)
+ .fadeOut(900);
+ }else{
+ $(selector).html( data.data.message ).addClass('error');
+ }
+ }
+};
+
+$(document).ready(function(){
+ // Trigger ajax on recoveryAdmin status change
+ var enabledStatus = $('#adminEnableRecovery').val();
+
+ $('input:password[name="recoveryPassword"]').keyup(function(event) {
+ var recoveryPassword = $( '#recoveryPassword' ).val();
+ var checkedButton = $('input:radio[name="adminEnableRecovery"]:checked').val();
+ var uncheckedValue = (1+parseInt(checkedButton)) % 2;
+ if (recoveryPassword != '' ) {
+ $('input:radio[name="adminEnableRecovery"][value="'+uncheckedValue.toString()+'"]').removeAttr("disabled");
+ } else {
+ $('input:radio[name="adminEnableRecovery"][value="'+uncheckedValue.toString()+'"]').attr("disabled", "true");
+ }
+ });
+
+ $( 'input:radio[name="adminEnableRecovery"]' ).change(
+ function() {
+ var recoveryStatus = $( this ).val();
+ var oldStatus = (1+parseInt(recoveryStatus)) % 2;
+ var recoveryPassword = $( '#recoveryPassword' ).val();
+ $.post(
+ OC.filePath( 'files_encryption', 'ajax', 'adminrecovery.php' )
+ , { adminEnableRecovery: recoveryStatus, recoveryPassword: recoveryPassword }
+ , function( result ) {
+ if (result.status === "error") {
+ OC.Notification.show(t('admin', result.data.message));
+ $('input:radio[name="adminEnableRecovery"][value="'+oldStatus.toString()+'"]').attr("checked", "true");
+ } else {
+ OC.Notification.hide();
+ if (recoveryStatus === "0") {
+ $('button:button[name="submitChangeRecoveryKey"]').attr("disabled", "true");
+ $('input:password[name="changeRecoveryPassword"]').attr("disabled", "true");
+ $('input:password[name="changeRecoveryPassword"]').val("");
+ } else {
+ $('input:password[name="changeRecoveryPassword"]').removeAttr("disabled");
+ }
+ }
+ }
+ );
+ }
+ );
+
+ // change recovery password
+
+ $('input:password[name="changeRecoveryPassword"]').keyup(function(event) {
+ var oldRecoveryPassword = $('input:password[id="oldRecoveryPassword"]').val();
+ var newRecoveryPassword = $('input:password[id="newRecoveryPassword"]').val();
+ if (newRecoveryPassword != '' && oldRecoveryPassword != '' ) {
+ $('button:button[name="submitChangeRecoveryKey"]').removeAttr("disabled");
+ } else {
+ $('button:button[name="submitChangeRecoveryKey"]').attr("disabled", "true");
+ }
+ });
+
+
+ $('button:button[name="submitChangeRecoveryKey"]').click(function() {
+ var oldRecoveryPassword = $('input:password[id="oldRecoveryPassword"]').val();
+ var newRecoveryPassword = $('input:password[id="newRecoveryPassword"]').val();
+ OC.msg.startSaving('#encryption .msg');
+ $.post(
+ OC.filePath( 'files_encryption', 'ajax', 'changeRecoveryPassword.php' )
+ , { oldPassword: oldRecoveryPassword, newPassword: newRecoveryPassword }
+ , function( data ) {
+ if (data.status == "error") {
+ OC.msg.finishedSaving('#encryption .msg', data);
+ } else {
+ OC.msg.finishedSaving('#encryption .msg', data);
+ }
+ }
+ );
+ });
+
+});
\ No newline at end of file
--- /dev/null
+/**
+ * Copyright (c) 2013, Sam Tuke <samtuke@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ */
+
+$(document).ready(function(){
+ // Trigger ajax on recoveryAdmin status change
+ $( 'input:radio[name="userEnableRecovery"]' ).change(
+ function() {
+
+ // Hide feedback messages in case they're already visible
+ $('#recoveryEnabledSuccess').hide();
+ $('#recoveryEnabledError').hide();
+
+ var recoveryStatus = $( this ).val();
+
+ $.post(
+ OC.filePath( 'files_encryption', 'ajax', 'userrecovery.php' )
+ , { userEnableRecovery: recoveryStatus }
+ , function( data ) {
+ if ( data.status == "success" ) {
+ $('#recoveryEnabledSuccess').show();
+ } else {
+ $('#recoveryEnabledError').show();
+ }
+ }
+ );
+ // Ensure page is not reloaded on form submit
+ return false;
+ }
+ );
+
+ $("#encryptAll").click(
+ function(){
+
+ // Hide feedback messages in case they're already visible
+ $('#encryptAllSuccess').hide();
+ $('#encryptAllError').hide();
+
+ var userPassword = $( '#userPassword' ).val();
+ var encryptAll = $( '#encryptAll' ).val();
+
+ $.post(
+ OC.filePath( 'files_encryption', 'ajax', 'encryptall.php' )
+ , { encryptAll: encryptAll, userPassword: userPassword }
+ , function( data ) {
+ if ( data.status == "success" ) {
+ $('#encryptAllSuccess').show();
+ } else {
+ $('#encryptAllError').show();
+ }
+ }
+ );
+ // Ensure page is not reloaded on form submit
+ return false;
+ }
+
+ );
+});
\ No newline at end of file
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "التشفير",
+"File encryption is enabled." => "تشفير الملفات فعال.",
+"The following file types will not be encrypted:" => "الملفات الاتية لن يتم تشفيرها:",
+"Exclude the following file types from encryption:" => "إستثناء أنواع الملفات الاتية من التشفير: ",
+"None" => "لا شيء"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Криптиране",
+"None" => "Няма"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "সংকেতায়ন",
+"None" => "কোনটিই নয়"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Xifrat",
+"File encryption is enabled." => "El xifrat de fitxers està activat.",
+"The following file types will not be encrypted:" => "Els tipus de fitxers següents no es xifraran:",
+"Exclude the following file types from encryption:" => "Exclou els tipus de fitxers següents del xifratge:",
+"None" => "Cap"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Šifrování",
+"File encryption is enabled." => "Šifrování je povoleno.",
+"The following file types will not be encrypted:" => "Následující typy souborů nebudou šifrovány:",
+"Exclude the following file types from encryption:" => "Vyjmout následující typy souborů ze šifrování:",
+"None" => "Žádné"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Amgryptiad",
+"File encryption is enabled." => "Galluogwyd amgryptio ffeiliau.",
+"The following file types will not be encrypted:" => "Ni fydd ffeiliau o'r math yma'n cael eu hamgryptio:",
+"Exclude the following file types from encryption:" => "Eithrio'r mathau canlynol o ffeiliau rhag cael eu hamgryptio:",
+"None" => "Dim"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Kryptering",
+"File encryption is enabled." => "Fil kryptering aktiveret.",
+"The following file types will not be encrypted:" => "De følgende filtyper vil ikke blive krypteret:",
+"Exclude the following file types from encryption:" => "Ekskluder de følgende fil typer fra kryptering:",
+"None" => "Ingen"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Verschlüsselung",
+"File encryption is enabled." => "Dateiverschlüsselung ist aktiviert",
+"The following file types will not be encrypted:" => "Die folgenden Dateitypen werden nicht verschlüsselt:",
+"Exclude the following file types from encryption:" => "Schließe die folgenden Dateitypen von der Verschlüsselung aus:",
+"None" => "Keine"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Verschlüsselung",
+"File encryption is enabled." => "Datei-Verschlüsselung ist aktiviert",
+"The following file types will not be encrypted:" => "Die folgenden Dateitypen werden nicht verschlüsselt:",
+"Exclude the following file types from encryption:" => "Die folgenden Dateitypen von der Verschlüsselung ausnehmen:",
+"None" => "Keine"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Κρυπτογράφηση",
+"File encryption is enabled." => "Η κρυπτογράφηση αρχείων είναι ενεργή.",
+"The following file types will not be encrypted:" => "Οι παρακάτω τύποι αρχείων δεν θα κρυπτογραφηθούν:",
+"Exclude the following file types from encryption:" => "Εξαίρεση των παρακάτω τύπων αρχείων από την κρυπτογράφηση:",
+"None" => "Καμία"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Ĉifrado",
+"None" => "Nenio"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Cifrado",
+"File encryption is enabled." => "La encriptacion de archivo esta activada.",
+"The following file types will not be encrypted:" => "Los siguientes tipos de archivo no seran encriptados:",
+"Exclude the following file types from encryption:" => "Excluir los siguientes tipos de archivo de la encriptacion:",
+"None" => "Ninguno"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Encriptación",
+"File encryption is enabled." => "La encriptación de archivos no está habilitada",
+"The following file types will not be encrypted:" => "Los siguientes tipos de archivos no serán encriptados",
+"Exclude the following file types from encryption:" => "Excluir los siguientes tipos de archivos de encriptación:",
+"None" => "Ninguno"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Krüpteerimine",
+"File encryption is enabled." => "Faili krüpteerimine on sisse lülitatud.",
+"The following file types will not be encrypted:" => "Järgnevaid failitüüpe ei krüpteerita:",
+"Exclude the following file types from encryption:" => "Järgnevaid failitüüpe ei krüpteerita:",
+"None" => "Pole"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Enkriptazioa",
+"File encryption is enabled." => "Fitxategien enkriptazioa gaituta dago.",
+"The following file types will not be encrypted:" => "Hurrengo fitxategi motak ez dira enkriptatuko:",
+"Exclude the following file types from encryption:" => "Baztertu hurrengo fitxategi motak enkriptatzetik:",
+"None" => "Bat ere ez"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "رمزگذاری",
+"File encryption is enabled." => "رمزنگاری فایلها فعال شد.",
+"The following file types will not be encrypted:" => "فایلهای زیر رمزنگاری نخواهند شد:",
+"Exclude the following file types from encryption:" => "فایلهای زیر از رمزنگاری نادیده گرفته می شوند:",
+"None" => "هیچکدام"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Salaus",
+"File encryption is enabled." => "Tiedostojen salaus on käytössä.",
+"The following file types will not be encrypted:" => "Seuraavia tiedostotyyppejä ei salata:",
+"Exclude the following file types from encryption:" => "Älä salaa seuravia tiedostotyyppejä:",
+"None" => "Ei mitään"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Chiffrement",
+"File encryption is enabled." => "Le chiffrement des fichiers est activé",
+"The following file types will not be encrypted:" => "Les fichiers de types suivants ne seront pas chiffrés :",
+"Exclude the following file types from encryption:" => "Ne pas chiffrer les fichiers dont les types sont les suivants :",
+"None" => "Aucun"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Cifrado",
+"File encryption is enabled." => "O cifrado de ficheiros está activado",
+"The following file types will not be encrypted:" => "Os seguintes tipos de ficheiros non van seren cifrados:",
+"Exclude the following file types from encryption:" => "Excluír os seguintes tipos de ficheiros do cifrado:",
+"None" => "Ningún"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "הצפנה",
+"None" => "כלום"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Titkosítás",
+"File encryption is enabled." => "Az állományok titkosítása be van kapcsolva.",
+"The following file types will not be encrypted:" => "A következő fájltípusok nem kerülnek titkosításra:",
+"Exclude the following file types from encryption:" => "Zárjuk ki a titkosításból a következő fájltípusokat:",
+"None" => "Egyik sem"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Enkripsi",
+"File encryption is enabled." => "Enkripsi berkas aktif.",
+"The following file types will not be encrypted:" => "Tipe berkas berikut tidak akan dienkripsi:",
+"Exclude the following file types from encryption:" => "Kecualikan tipe berkas berikut dari enkripsi:",
+"None" => "Tidak ada"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Dulkóðun",
+"None" => "Ekkert"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Cifratura",
+"File encryption is enabled." => "La cifratura dei file è abilitata.",
+"The following file types will not be encrypted:" => "I seguenti tipi di file non saranno cifrati:",
+"Exclude the following file types from encryption:" => "Escludi i seguenti tipi di file dalla cifratura:",
+"None" => "Nessuna"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "暗号化",
+"File encryption is enabled." => "ファイルの暗号化は有効です。",
+"The following file types will not be encrypted:" => "次のファイルタイプは暗号化されません:",
+"Exclude the following file types from encryption:" => "次のファイルタイプを暗号化から除外:",
+"None" => "なし"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "ენკრიპცია",
+"File encryption is enabled." => "ფაილის ენკრიპცია ჩართულია.",
+"The following file types will not be encrypted:" => "შემდეგი ფაილური ტიპების ენკრიპცია არ მოხდება:",
+"Exclude the following file types from encryption:" => "ამოიღე შემდეგი ფაილის ტიპები ენკრიპციიდან:",
+"None" => "არა"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "암호화",
+"None" => "없음"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "نهێنیکردن",
+"None" => "هیچ"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Šifravimas",
+"None" => "Nieko"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Šifrēšana",
+"File encryption is enabled." => "Datņu šifrēšana ir aktivēta.",
+"The following file types will not be encrypted:" => "Sekojošās datnes netiks šifrētas:",
+"Exclude the following file types from encryption:" => "Sekojošos datņu tipus izslēgt no šifrēšanas:",
+"None" => "Nav"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Енкрипција",
+"None" => "Ништо"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Kryptering",
+"File encryption is enabled." => "Fil-kryptering er aktivert.",
+"The following file types will not be encrypted:" => "Følgende filtyper vil ikke bli kryptert:",
+"Exclude the following file types from encryption:" => "Ekskluder følgende filtyper fra kryptering:",
+"None" => "Ingen"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Versleuteling",
+"File encryption is enabled." => "Bestandsversleuteling geactiveerd.",
+"The following file types will not be encrypted:" => "De volgende bestandstypen zullen niet worden versleuteld:",
+"Exclude the following file types from encryption:" => "Sluit de volgende bestandstypen uit van versleuteling:",
+"None" => "Geen"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Szyfrowanie",
+"File encryption is enabled." => "Szyfrowanie plików jest włączone",
+"The following file types will not be encrypted:" => "Poniższe typy plików nie będą szyfrowane:",
+"Exclude the following file types from encryption:" => "Wyłącz poniższe typy plików z szyfrowania:",
+"None" => "Brak"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Criptografia",
+"File encryption is enabled." => "A criptografia de arquivos está ativada.",
+"The following file types will not be encrypted:" => "Os seguintes tipos de arquivo não serão criptografados:",
+"Exclude the following file types from encryption:" => "Excluir os seguintes tipos de arquivo da criptografia:",
+"None" => "Nenhuma"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Encriptação",
+"File encryption is enabled." => "A encriptação de ficheiros está ligada",
+"The following file types will not be encrypted:" => "Os seguintes ficheiros não serão encriptados:",
+"Exclude the following file types from encryption:" => "Excluir da encriptação os seguintes tipos de ficheiro:",
+"None" => "Nenhum"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Încriptare",
+"None" => "Niciuna"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Шифрование",
+"File encryption is enabled." => "Шифрование файла включено.",
+"The following file types will not be encrypted:" => "Следующие типы файлов не будут зашифрованы:",
+"Exclude the following file types from encryption:" => "Исключить следующие типы файлов из шифрованных:",
+"None" => "Ничего"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Шифрование",
+"None" => "Ни один"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "ගුප්ත කේතනය",
+"None" => "කිසිවක් නැත"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Šifrovanie",
+"File encryption is enabled." => "Šifrovanie súborov nastavené.",
+"The following file types will not be encrypted:" => "Uvedené typy súborov nebudú šifrované:",
+"Exclude the following file types from encryption:" => "Nešifrovať uvedené typy súborov",
+"None" => "Žiadne"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Šifriranje",
+"File encryption is enabled." => "Šifriranje datotek je omogočeno.",
+"The following file types will not be encrypted:" => "Navedene vrste datotek ne bodo šifrirane:",
+"Exclude the following file types from encryption:" => "Ne šifriraj navedenih vrst datotek:",
+"None" => "Brez"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Шифровање",
+"None" => "Ништа"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Kryptering",
+"File encryption is enabled." => "Filkryptering är aktiverat.",
+"The following file types will not be encrypted:" => "Följande filtyper kommer inte att krypteras:",
+"Exclude the following file types from encryption:" => "Exkludera följande filtyper från kryptering:",
+"None" => "Ingen"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "மறைக்குறியீடு",
+"None" => "ஒன்றுமில்லை"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "การเข้ารหัส",
+"None" => "ไม่ต้อง"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Şifreleme",
+"File encryption is enabled." => "Dosya şifreleme aktif.",
+"The following file types will not be encrypted:" => "Belirtilen dosya tipleri şifrelenmeyecek:",
+"Exclude the following file types from encryption:" => "Seçilen dosya tiplerini şifreleme:",
+"None" => "Hiçbiri"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "شىفىرلاش",
+"File encryption is enabled." => "ھۆججەت شىفىرلاش قوزغىتىلدى.",
+"The following file types will not be encrypted:" => "تۆۋەندىكى ھۆججەت تىپلىرى شىفىرلانمايدۇ:",
+"Exclude the following file types from encryption:" => "تۆۋەندىكى ھۆججەت تىپلىرى شىفىرلاشنىڭ سىرتىدا:",
+"None" => "يوق"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Шифрування",
+"File encryption is enabled." => "Увімкнуто шифрування файлів.",
+"The following file types will not be encrypted:" => "Такі типи файлів шифруватись не будуть:",
+"Exclude the following file types from encryption:" => "Виключити наступні типи файлів з шифрування:",
+"None" => "Жоден"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "Mã hóa",
+"File encryption is enabled." => "Mã hóa file đã mở",
+"The following file types will not be encrypted:" => "Loại file sau sẽ không được mã hóa",
+"Exclude the following file types from encryption:" => "Việc mã hóa không bao gồm loại file sau",
+"None" => "Không có gì hết"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "加密",
+"None" => "无"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "加密",
+"File encryption is enabled." => "文件加密已启用.",
+"The following file types will not be encrypted:" => "如下的文件类型将不会被加密:",
+"Exclude the following file types from encryption:" => "从加密中排除如下的文件类型:",
+"None" => "无"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "加密",
+"File encryption is enabled." => "檔案加密已開啟",
+"The following file types will not be encrypted:" => "以下文件類別將不會被加密",
+"None" => "空"
+);
--- /dev/null
+<?php $TRANSLATIONS = array(
+"Encryption" => "加密",
+"File encryption is enabled." => "檔案加密已被啟用",
+"The following file types will not be encrypted:" => "以下的文件類型不會被加密：",
+"Exclude the following file types from encryption:" => "從加密中排除的檔案類型：",
+"None" => "無"
+);
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2013 Tom Needham <tom@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OCA\Encryption;
+
+class Capabilities {
+
+ public static function getCapabilities() {
+ return new \OC_OCS_Result(array(
+ 'capabilities' => array(
+ 'files' => array(
+ 'encryption' => true,
+ ),
+ ),
+ ));
+ }
+
+}
\ No newline at end of file
--- /dev/null
+<?php\r
+\r
+/**\r
+ * ownCloud\r
+ *\r
+ * @author Sam Tuke, Frank Karlitschek, Robin Appelman\r
+ * @copyright 2012 Sam Tuke samtuke@owncloud.com,\r
+ * Robin Appelman icewind@owncloud.com, Frank Karlitschek\r
+ * frank@owncloud.org\r
+ *\r
+ * This library is free software; you can redistribute it and/or\r
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE\r
+ * License as published by the Free Software Foundation; either\r
+ * version 3 of the License, or any later version.\r
+ *\r
+ * This library is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.\r
+ *\r
+ * You should have received a copy of the GNU Affero General Public\r
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.\r
+ *\r
+ */\r
+\r
+namespace OCA\Encryption;\r
+\r
+//require_once '../3rdparty/Crypt_Blowfish/Blowfish.php';\r
+require_once realpath( dirname( __FILE__ ) . '/../3rdparty/Crypt_Blowfish/Blowfish.php' );\r
+\r
+/**\r
+ * Class for common cryptography functionality\r
+ */\r
+\r
+class Crypt\r
+{\r
+\r
+ /**\r
+ * @brief return encryption mode client or server side encryption\r
+ * @param string $user name (use system wide setting if name=null)\r
+ * @return string 'client' or 'server'\r
+ */\r
+ public static function mode( $user = null ) {\r
+\r
+ return 'server';\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Create a new encryption keypair\r
+ * @return array publicKey, privatekey\r
+ */\r
+ public static function createKeypair() {\r
+\r
+ $res = openssl_pkey_new( array( 'private_key_bits' => 4096 ) );\r
+\r
+ // Get private key\r
+ openssl_pkey_export( $res, $privateKey );\r
+\r
+ // Get public key\r
+ $publicKey = openssl_pkey_get_details( $res );\r
+\r
+ $publicKey = $publicKey['key'];\r
+\r
+ return ( array( 'publicKey' => $publicKey, 'privateKey' => $privateKey ) );\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Add arbitrary padding to encrypted data\r
+ * @param string $data data to be padded\r
+ * @return string padded data\r
+ * @note In order to end up with data exactly 8192 bytes long we must\r
+ * add two letters. It is impossible to achieve exactly 8192 length\r
+ * blocks with encryption alone, hence padding is added to achieve the\r
+ * required length.\r
+ */\r
+ public static function addPadding( $data ) {\r
+\r
+ $padded = $data . 'xx';\r
+\r
+ return $padded;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Remove arbitrary padding to encrypted data\r
+ * @param string $padded padded data to remove padding from\r
+ * @return string unpadded data on success, false on error\r
+ */\r
+ public static function removePadding( $padded ) {\r
+\r
+ if ( substr( $padded, -2 ) == 'xx' ) {\r
+\r
+ $data = substr( $padded, 0, -2 );\r
+\r
+ return $data;\r
+\r
+ } else {\r
+\r
+ // TODO: log the fact that unpadded data was submitted for removal of padding\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Check if a file's contents contains an IV and is symmetrically encrypted\r
+ * @param $content\r
+ * @return boolean\r
+ * @note see also OCA\Encryption\Util->isEncryptedPath()\r
+ */\r
+ public static function isCatfileContent( $content ) {\r
+\r
+ if ( !$content ) {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ $noPadding = self::removePadding( $content );\r
+\r
+ // Fetch encryption metadata from end of file\r
+ $meta = substr( $noPadding, -22 );\r
+\r
+ // Fetch IV from end of file\r
+ $iv = substr( $meta, -16 );\r
+\r
+ // Fetch identifier from start of metadata\r
+ $identifier = substr( $meta, 0, 6 );\r
+\r
+ if ( $identifier == '00iv00' ) {\r
+\r
+ return true;\r
+\r
+ } else {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * Check if a file is encrypted according to database file cache\r
+ * @param string $path\r
+ * @return bool\r
+ */\r
+ public static function isEncryptedMeta( $path ) {\r
+\r
+ // TODO: Use DI to get \OC\Files\Filesystem out of here\r
+\r
+ // Fetch all file metadata from DB\r
+ $metadata = \OC\Files\Filesystem::getFileInfo( $path );\r
+\r
+ // Return encryption status\r
+ return isset( $metadata['encrypted'] ) and ( bool )$metadata['encrypted'];\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Check if a file is encrypted via legacy system\r
+ * @param $data\r
+ * @param string $relPath The path of the file, relative to user/data;\r
+ * e.g. filename or /Docs/filename, NOT admin/files/filename\r
+ * @return boolean\r
+ */\r
+ public static function isLegacyEncryptedContent( $data, $relPath ) {\r
+\r
+ // Fetch all file metadata from DB\r
+ $metadata = \OC\Files\Filesystem::getFileInfo( $relPath, '' );\r
+\r
+ // If a file is flagged with encryption in DB, but isn't a \r
+ // valid content + IV combination, it's probably using the \r
+ // legacy encryption system\r
+ if (\r
+ isset( $metadata['encrypted'] )\r
+ and $metadata['encrypted'] === true\r
+ and !self::isCatfileContent( $data )\r
+ ) {\r
+\r
+ return true;\r
+\r
+ } else {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Symmetrically encrypt a string\r
+ * @param $plainContent\r
+ * @param $iv\r
+ * @param string $passphrase\r
+ * @return string encrypted file content\r
+ */\r
+ public static function encrypt( $plainContent, $iv, $passphrase = '' ) {\r
+\r
+ if ( $encryptedContent = openssl_encrypt( $plainContent, 'AES-128-CFB', $passphrase, false, $iv ) ) {\r
+\r
+ return $encryptedContent;\r
+\r
+ } else {\r
+\r
+ \OC_Log::write( 'Encryption library', 'Encryption (symmetric) of content failed', \OC_Log::ERROR );\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Symmetrically decrypt a string\r
+ * @param $encryptedContent\r
+ * @param $iv\r
+ * @param $passphrase\r
+ * @throws \Exception\r
+ * @return string decrypted file content\r
+ */\r
+ public static function decrypt( $encryptedContent, $iv, $passphrase ) {\r
+\r
+ if ( $plainContent = openssl_decrypt( $encryptedContent, 'AES-128-CFB', $passphrase, false, $iv ) ) {\r
+\r
+ return $plainContent;\r
+\r
+ } else {\r
+\r
+ throw new \Exception( 'Encryption library: Decryption (symmetric) of content failed' );\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Concatenate encrypted data with its IV and padding\r
+ * @param string $content content to be concatenated\r
+ * @param string $iv IV to be concatenated\r
+ * @returns string concatenated content\r
+ */\r
+ public static function concatIv( $content, $iv ) {\r
+\r
+ $combined = $content . '00iv00' . $iv;\r
+\r
+ return $combined;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Split concatenated data and IV into respective parts\r
+ * @param string $catFile concatenated data to be split\r
+ * @returns array keys: encrypted, iv\r
+ */\r
+ public static function splitIv( $catFile ) {\r
+\r
+ // Fetch encryption metadata from end of file\r
+ $meta = substr( $catFile, -22 );\r
+\r
+ // Fetch IV from end of file\r
+ $iv = substr( $meta, -16 );\r
+\r
+ // Remove IV and IV identifier text to expose encrypted content\r
+ $encrypted = substr( $catFile, 0, -22 );\r
+\r
+ $split = array(\r
+ 'encrypted' => $encrypted\r
+ , 'iv' => $iv\r
+ );\r
+\r
+ return $split;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Symmetrically encrypts a string and returns keyfile content\r
+ * @param string $plainContent content to be encrypted in keyfile\r
+ * @param string $passphrase\r
+ * @return bool|string\r
+ * @return string encrypted content combined with IV\r
+ * @note IV need not be specified, as it will be stored in the returned keyfile\r
+ * and remain accessible therein.\r
+ */\r
+ public static function symmetricEncryptFileContent( $plainContent, $passphrase = '' ) {\r
+\r
+ if ( !$plainContent ) {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ $iv = self::generateIv();\r
+\r
+ if ( $encryptedContent = self::encrypt( $plainContent, $iv, $passphrase ) ) {\r
+\r
+ // Combine content to encrypt with IV identifier and actual IV\r
+ $catfile = self::concatIv( $encryptedContent, $iv );\r
+\r
+ $padded = self::addPadding( $catfile );\r
+\r
+ return $padded;\r
+\r
+ } else {\r
+\r
+ \OC_Log::write( 'Encryption library', 'Encryption (symmetric) of keyfile content failed', \OC_Log::ERROR );\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+\r
+ /**\r
+ * @brief Symmetrically decrypts keyfile content\r
+ * @param $keyfileContent\r
+ * @param string $passphrase\r
+ * @throws \Exception\r
+ * @return bool|string\r
+ * @internal param string $source\r
+ * @internal param string $target\r
+ * @internal param string $key the decryption key\r
+ * @returns string decrypted content\r
+ *\r
+ * This function decrypts a file\r
+ */\r
+ public static function symmetricDecryptFileContent( $keyfileContent, $passphrase = '' ) {\r
+\r
+ if ( !$keyfileContent ) {\r
+\r
+ throw new \Exception( 'Encryption library: no data provided for decryption' );\r
+\r
+ }\r
+\r
+ // Remove padding\r
+ $noPadding = self::removePadding( $keyfileContent );\r
+\r
+ // Split into enc data and catfile\r
+ $catfile = self::splitIv( $noPadding );\r
+\r
+ if ( $plainContent = self::decrypt( $catfile['encrypted'], $catfile['iv'], $passphrase ) ) {\r
+\r
+ return $plainContent;\r
+\r
+ } else {\r
+ return false;\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Creates symmetric keyfile content using a generated key\r
+ * @param string $plainContent content to be encrypted\r
+ * @returns array keys: key, encrypted\r
+ * @note symmetricDecryptFileContent() can be used to decrypt files created using this method\r
+ *\r
+ * This function decrypts a file\r
+ */\r
+ public static function symmetricEncryptFileContentKeyfile( $plainContent ) {\r
+\r
+ $key = self::generateKey();\r
+\r
+ if ( $encryptedContent = self::symmetricEncryptFileContent( $plainContent, $key ) ) {\r
+\r
+ return array(\r
+ 'key' => $key,\r
+ 'encrypted' => $encryptedContent\r
+ );\r
+\r
+ } else {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Create asymmetrically encrypted keyfile content using a generated key\r
+ * @param string $plainContent content to be encrypted\r
+ * @param array $publicKeys array keys must be the userId of corresponding user\r
+ * @returns array keys: keys (array, key = userId), data\r
+ * @note symmetricDecryptFileContent() can decrypt files created using this method\r
+ */\r
+ public static function multiKeyEncrypt( $plainContent, array $publicKeys ) {\r
+\r
+ // openssl_seal returns false without errors if $plainContent \r
+ // is empty, so trigger our own error\r
+ if ( empty( $plainContent ) ) {\r
+\r
+ throw new \Exception( 'Cannot mutliKeyEncrypt empty plain content' );\r
+\r
+ }\r
+\r
+ // Set empty vars to be set by openssl by reference\r
+ $sealed = '';\r
+ $shareKeys = array();\r
+ $mappedShareKeys = array();\r
+\r
+ if ( openssl_seal( $plainContent, $sealed, $shareKeys, $publicKeys ) ) {\r
+\r
+ $i = 0;\r
+\r
+ // Ensure each shareKey is labelled with its \r
+ // corresponding userId\r
+ foreach ( $publicKeys as $userId => $publicKey ) {\r
+\r
+ $mappedShareKeys[$userId] = $shareKeys[$i];\r
+ $i++;\r
+\r
+ }\r
+\r
+ return array(\r
+ 'keys' => $mappedShareKeys,\r
+ 'data' => $sealed\r
+ );\r
+\r
+ } else {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Asymmetrically encrypt a file using multiple public keys\r
+ * @param $encryptedContent\r
+ * @param $shareKey\r
+ * @param $privateKey\r
+ * @return bool\r
+ * @internal param string $plainContent content to be encrypted\r
+ * @returns string $plainContent decrypted string\r
+ * @note symmetricDecryptFileContent() can be used to decrypt files created using this method\r
+ *\r
+ * This function decrypts a file\r
+ */\r
+ public static function multiKeyDecrypt( $encryptedContent, $shareKey, $privateKey ) {\r
+\r
+ if ( !$encryptedContent ) {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ if ( openssl_open( $encryptedContent, $plainContent, $shareKey, $privateKey ) ) {\r
+\r
+ return $plainContent;\r
+\r
+ } else {\r
+\r
+ \OC_Log::write( 'Encryption library', 'Decryption (asymmetric) of sealed content failed', \OC_Log::ERROR );\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Asymetrically encrypt a string using a public key\r
+ * @return string encrypted file\r
+ */\r
+ public static function keyEncrypt( $plainContent, $publicKey ) {\r
+\r
+ openssl_public_encrypt( $plainContent, $encryptedContent, $publicKey );\r
+\r
+ return $encryptedContent;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Asymetrically decrypt a file using a private key\r
+ * @return string decrypted file\r
+ */\r
+ public static function keyDecrypt( $encryptedContent, $privatekey ) {\r
+\r
+ $result = @openssl_private_decrypt( $encryptedContent, $plainContent, $privatekey );\r
+\r
+ if ( $result ) {\r
+ return $plainContent;\r
+ }\r
+\r
+ return $result;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Generates a pseudo random initialisation vector\r
+ * @return String $iv generated IV\r
+ */\r
+ public static function generateIv() {\r
+\r
+ if ( $random = openssl_random_pseudo_bytes( 12, $strong ) ) {\r
+\r
+ if ( !$strong ) {\r
+\r
+ // If OpenSSL indicates randomness is insecure, log error\r
+ \OC_Log::write( 'Encryption library', 'Insecure symmetric key was generated using openssl_random_pseudo_bytes()', \OC_Log::WARN );\r
+\r
+ }\r
+\r
+ // We encode the iv purely for string manipulation \r
+ // purposes - it gets decoded before use\r
+ $iv = base64_encode( $random );\r
+\r
+ return $iv;\r
+\r
+ } else {\r
+\r
+ throw new \Exception( 'Generating IV failed' );\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Generate a pseudo random 1024kb ASCII key\r
+ * @returns $key Generated key\r
+ */\r
+ public static function generateKey() {\r
+\r
+ // Generate key\r
+ if ( $key = base64_encode( openssl_random_pseudo_bytes( 183, $strong ) ) ) {\r
+\r
+ if ( !$strong ) {\r
+\r
+ // If OpenSSL indicates randomness is insecure, log error\r
+ throw new \Exception( 'Encryption library, Insecure symmetric key was generated using openssl_random_pseudo_bytes()' );\r
+\r
+ }\r
+\r
+ return $key;\r
+\r
+ } else {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief Get the blowfish encryption handeler for a key\r
+ * @param $key string (optional)\r
+ * @return Crypt_Blowfish blowfish object\r
+ *\r
+ * if the key is left out, the default handeler will be used\r
+ */\r
+ public static function getBlowfish( $key = '' ) {\r
+\r
+ if ( $key ) {\r
+\r
+ return new \Crypt_Blowfish( $key );\r
+\r
+ } else {\r
+\r
+ return false;\r
+\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * @param $passphrase\r
+ * @return mixed\r
+ */\r
+ public static function legacyCreateKey( $passphrase ) {\r
+\r
+ // Generate a random integer\r
+ $key = mt_rand( 10000, 99999 ) . mt_rand( 10000, 99999 ) . mt_rand( 10000, 99999 ) . mt_rand( 10000, 99999 );\r
+\r
+ // Encrypt the key with the passphrase\r
+ $legacyEncKey = self::legacyEncrypt( $key, $passphrase );\r
+\r
+ return $legacyEncKey;\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief encrypts content using legacy blowfish system\r
+ * @param string $content the cleartext message you want to encrypt\r
+ * @param string $passphrase\r
+ * @return\r
+ * @internal param \OCA\Encryption\the $key encryption key (optional)\r
+ * @returns string encrypted content\r
+ *\r
+ * This function encrypts an content\r
+ */\r
+ public static function legacyEncrypt( $content, $passphrase = '' ) {\r
+\r
+ $bf = self::getBlowfish( $passphrase );\r
+\r
+ return $bf->encrypt( $content );\r
+\r
+ }\r
+\r
+ /**\r
+ * @brief decrypts content using legacy blowfish system\r
+ * @param string $content the cleartext message you want to decrypt\r
+ * @param string $passphrase\r
+ * @return string\r
+ * @internal param \OCA\Encryption\the $key encryption key (optional)\r
+ * @return string cleartext content\r
+ *\r
+ * This function decrypts an content\r
+ */\r
+ public static function legacyDecrypt( $content, $passphrase = '' ) {\r
+\r
+ $bf = self::getBlowfish( $passphrase );\r
+\r
+ $decrypted = $bf->decrypt( $content );\r
+\r
+ return rtrim( $decrypted, "\0" );;\r
+\r
+ }\r
+\r
+ /**\r
+ * @param $data\r
+ * @param string $key\r
+ * @param int $maxLength\r
+ * @return string\r
+ */\r
+ private static function legacyBlockDecrypt( $data, $key = '', $maxLength = 0 ) {\r
+ $result = '';\r
+ while ( strlen( $data ) ) {\r
+ $result .= self::legacyDecrypt( substr( $data, 0, 8192 ), $key );\r
+ $data = substr( $data, 8192 );\r
+ }\r
+ if ( $maxLength > 0 ) {\r
+ return substr( $result, 0, $maxLength );\r
+ } else {\r
+ return rtrim( $result, "\0" );\r
+ }\r
+ }\r
+\r
+ /**\r
+ * @param $legacyEncryptedContent\r
+ * @param $legacyPassphrase\r
+ * @param $publicKeys\r
+ * @param $newPassphrase\r
+ * @param $path\r
+ * @return array\r
+ */\r
+ public static function legacyKeyRecryptKeyfile( $legacyEncryptedContent, $legacyPassphrase, $publicKeys, $newPassphrase, $path ) {\r
+\r
+ $decrypted = self::legacyBlockDecrypt( $legacyEncryptedContent, $legacyPassphrase );\r
+\r
+ // Encrypt plain data, generate keyfile & encrypted file\r
+ $cryptedData = self::symmetricEncryptFileContentKeyfile( $decrypted );\r
+\r
+ // Encrypt plain keyfile to multiple sharefiles\r
+ $multiEncrypted = Crypt::multiKeyEncrypt( $cryptedData['key'], $publicKeys );\r
+\r
+ return array( 'data' => $cryptedData['encrypted'], 'filekey' => $multiEncrypted['data'], 'sharekeys' => $multiEncrypted['keys'] );\r
+\r
+ }\r
+\r
+}
\ No newline at end of file
--- /dev/null
+<?php
+
+/**
+ * ownCloud
+ *
+ * @author Florin Peter
+ * @copyright 2013 Florin Peter <owncloud@florin-peter.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Encryption;
+
+ /**
+ * @brief Class to manage registration of hooks an various helper methods
+ */
+/**
+ * Class Helper
+ * @package OCA\Encryption
+ */
+class Helper
+{
+
+ /**
+ * @brief register share related hooks
+ *
+ */
+ public static function registerShareHooks() {
+
+ \OCP\Util::connectHook( 'OCP\Share', 'pre_shared', 'OCA\Encryption\Hooks', 'preShared' );
+ \OCP\Util::connectHook( 'OCP\Share', 'post_shared', 'OCA\Encryption\Hooks', 'postShared' );
+ \OCP\Util::connectHook( 'OCP\Share', 'post_unshare', 'OCA\Encryption\Hooks', 'postUnshare' );
+ }
+
+ /**
+ * @brief register user related hooks
+ *
+ */
+ public static function registerUserHooks() {
+
+ \OCP\Util::connectHook( 'OC_User', 'post_login', 'OCA\Encryption\Hooks', 'login' );
+ \OCP\Util::connectHook( 'OC_User', 'post_setPassword', 'OCA\Encryption\Hooks', 'setPassphrase' );
+ \OCP\Util::connectHook( 'OC_User', 'post_createUser', 'OCA\Encryption\Hooks', 'postCreateUser' );
+ \OCP\Util::connectHook( 'OC_User', 'post_deleteUser', 'OCA\Encryption\Hooks', 'postDeleteUser' );
+ }
+
+ /**
+ * @brief register filesystem related hooks
+ *
+ */
+ public static function registerFilesystemHooks() {
+
+ \OCP\Util::connectHook( 'OC_Filesystem', 'post_rename', 'OCA\Encryption\Hooks', 'postRename' );
+ }
+
+ /**
+ * @brief setup user for files_encryption
+ *
+ * @param Util $util
+ * @param string $password
+ * @return bool
+ */
+ public static function setupUser( $util, $password ) {
+ // Check files_encryption infrastructure is ready for action
+ if ( !$util->ready() ) {
+
+ \OC_Log::write( 'Encryption library', 'User account "' . $util->getUserId() . '" is not ready for encryption; configuration started', \OC_Log::DEBUG );
+
+ if ( !$util->setupServerSide( $password ) ) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ /**
+ * @brief enable recovery
+ *
+ * @param $recoveryKeyId
+ * @param $recoveryPassword
+ * @internal param \OCA\Encryption\Util $util
+ * @internal param string $password
+ * @return bool
+ */
+ public static function adminEnableRecovery( $recoveryKeyId, $recoveryPassword ) {
+ $view = new \OC\Files\View( '/' );
+
+ if ( $recoveryKeyId === null ) {
+ $recoveryKeyId = 'recovery_' . substr( md5( time() ), 0, 8 );
+ \OC_Appconfig::setValue( 'files_encryption', 'recoveryKeyId', $recoveryKeyId );
+ }
+
+ if ( !$view->is_dir( '/owncloud_private_key' ) ) {
+ $view->mkdir( '/owncloud_private_key' );
+ }
+
+ if (
+ ( !$view->file_exists( "/public-keys/" . $recoveryKeyId . ".public.key" )
+ || !$view->file_exists( "/owncloud_private_key/" . $recoveryKeyId . ".private.key" ) )
+ ) {
+
+ $keypair = \OCA\Encryption\Crypt::createKeypair();
+
+ \OC_FileProxy::$enabled = false;
+
+ // Save public key
+
+ if ( !$view->is_dir( '/public-keys' ) ) {
+ $view->mkdir( '/public-keys' );
+ }
+
+ $view->file_put_contents( '/public-keys/' . $recoveryKeyId . '.public.key', $keypair['publicKey'] );
+
+ // Encrypt private key empthy passphrase
+ $encryptedPrivateKey = \OCA\Encryption\Crypt::symmetricEncryptFileContent( $keypair['privateKey'], $recoveryPassword );
+
+ // Save private key
+ $view->file_put_contents( '/owncloud_private_key/' . $recoveryKeyId . '.private.key', $encryptedPrivateKey );
+
+ // create control file which let us check later on if the entered password was correct.
+ $encryptedControlData = \OCA\Encryption\Crypt::keyEncrypt( "ownCloud", $keypair['publicKey'] );
+ if ( !$view->is_dir( '/control-file' ) ) {
+ $view->mkdir( '/control-file' );
+ }
+ $view->file_put_contents( '/control-file/controlfile.enc', $encryptedControlData );
+
+ \OC_FileProxy::$enabled = true;
+
+ // Set recoveryAdmin as enabled
+ \OC_Appconfig::setValue( 'files_encryption', 'recoveryAdminEnabled', 1 );
+
+ $return = true;
+
+ } else { // get recovery key and check the password
+ $util = new \OCA\Encryption\Util( new \OC_FilesystemView( '/' ), \OCP\User::getUser() );
+ $return = $util->checkRecoveryPassword( $_POST['recoveryPassword'] );
+ if ( $return ) {
+ \OC_Appconfig::setValue( 'files_encryption', 'recoveryAdminEnabled', 1 );
+ }
+ }
+
+ return $return;
+ }
+
+
+ /**
+ * @brief disable recovery
+ *
+ * @param $recoveryPassword
+ * @return bool
+ */
+ public static function adminDisableRecovery( $recoveryPassword ) {
+ $util = new Util( new \OC_FilesystemView( '/' ), \OCP\User::getUser() );
+ $return = $util->checkRecoveryPassword( $recoveryPassword );
+
+ if ( $return ) {
+ // Set recoveryAdmin as disabled
+ \OC_Appconfig::setValue( 'files_encryption', 'recoveryAdminEnabled', 0 );
+ }
+
+ return $return;
+ }
+}
\ No newline at end of file
--- /dev/null
+<?php
+
+/**
+ * ownCloud
+ *
+ * @author Bjoern Schiessle
+ * @copyright 2012 Bjoern Schiessle <schiessle@owncloud.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Encryption;
+
+/**
+ * @brief Class to manage storage and retrieval of encryption keys
+ * @note Where a method requires a view object, it's root must be '/'
+ */
+class Keymanager
+{
+
+ /**
+ * @brief retrieve the ENCRYPTED private key from a user
+ *
+ * @param \OC_FilesystemView $view
+ * @param string $user
+ * @return string private key or false (hopefully)
+ * @note the key returned by this method must be decrypted before use
+ */
+ public static function getPrivateKey( \OC_FilesystemView $view, $user ) {
+
+ $path = '/' . $user . '/' . 'files_encryption' . '/' . $user . '.private.key';
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $key = $view->file_get_contents( $path );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $key;
+ }
+
+ /**
+ * @brief retrieve public key for a specified user
+ * @param \OC_FilesystemView $view
+ * @param $userId
+ * @return string public key or false
+ */
+ public static function getPublicKey( \OC_FilesystemView $view, $userId ) {
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $result = $view->file_get_contents( '/public-keys/' . $userId . '.public.key' );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+
+ }
+
+ /**
+ * @brief Retrieve a user's public and private key
+ * @param \OC_FilesystemView $view
+ * @param $userId
+ * @return array keys: privateKey, publicKey
+ */
+ public static function getUserKeys( \OC_FilesystemView $view, $userId ) {
+
+ return array(
+ 'publicKey' => self::getPublicKey( $view, $userId )
+ , 'privateKey' => self::getPrivateKey( $view, $userId )
+ );
+
+ }
+
+ /**
+ * @brief Retrieve public keys for given users
+ * @param \OC_FilesystemView $view
+ * @param array $userIds
+ * @return array of public keys for the specified users
+ */
+ public static function getPublicKeys( \OC_FilesystemView $view, array $userIds ) {
+
+ $keys = array();
+
+ foreach ( $userIds as $userId ) {
+
+ $keys[$userId] = self::getPublicKey( $view, $userId );
+
+ }
+
+ return $keys;
+
+ }
+
+ /**
+ * @brief store file encryption key
+ *
+ * @param \OC_FilesystemView $view
+ * @param string $path relative path of the file, including filename
+ * @param $userId
+ * @param $catfile
+ * @internal param string $key
+ * @return bool true/false
+ * @note The keyfile is not encrypted here. Client code must
+ * asymmetrically encrypt the keyfile before passing it to this method
+ */
+ public static function setFileKey( \OC_FilesystemView $view, $path, $userId, $catfile ) {
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ //here we need the currently logged in user, while userId can be a different user
+ $util = new Util( $view, \OCP\User::getUser() );
+ list( $owner, $filename ) = $util->getUidAndFilename( $path );
+
+ $basePath = '/' . $owner . '/files_encryption/keyfiles';
+
+ $targetPath = self::keySetPreparation( $view, $filename, $basePath, $owner );
+
+ if ( !$view->is_dir( $basePath . '/' . $targetPath ) ) {
+
+ // create all parent folders
+ $info = pathinfo( $basePath . '/' . $targetPath );
+ $keyfileFolderName = $view->getLocalFolder( $info['dirname'] );
+
+ if ( !file_exists( $keyfileFolderName ) ) {
+
+ mkdir( $keyfileFolderName, 0750, true );
+
+ }
+ }
+
+ // try reusing key file if part file
+ if ( self::isPartialFilePath( $targetPath ) ) {
+
+ $result = $view->file_put_contents( $basePath . '/' . self::fixPartialFilePath( $targetPath ) . '.key', $catfile );
+
+ } else {
+
+ $result = $view->file_put_contents( $basePath . '/' . $targetPath . '.key', $catfile );
+
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+
+ }
+
+ /**
+ * @brief Remove .path extension from a file path
+ * @param string $path Path that may identify a .part file
+ * @return string File path without .part extension
+ * @note this is needed for reusing keys
+ */
+ public static function fixPartialFilePath( $path ) {
+
+ if ( preg_match( '/\.part$/', $path ) ) {
+
+ $newLength = strlen( $path ) - 5;
+ $fPath = substr( $path, 0, $newLength );
+
+ return $fPath;
+
+ } else {
+
+ return $path;
+
+ }
+
+ }
+
+ /**
+ * @brief Check if a path is a .part file
+ * @param string $path Path that may identify a .part file
+ * @return bool
+ */
+ public static function isPartialFilePath( $path ) {
+
+ if ( preg_match( '/\.part$/', $path ) ) {
+
+ return true;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief retrieve keyfile for an encrypted file
+ * @param \OC_FilesystemView $view
+ * @param $userId
+ * @param $filePath
+ * @internal param \OCA\Encryption\file $string name
+ * @return string file key or false
+ * @note The keyfile returned is asymmetrically encrypted. Decryption
+ * of the keyfile must be performed by client code
+ */
+ public static function getFileKey( \OC_FilesystemView $view, $userId, $filePath ) {
+
+ // try reusing key file if part file
+ if ( self::isPartialFilePath( $filePath ) ) {
+
+ $result = self::getFileKey( $view, $userId, self::fixPartialFilePath( $filePath ) );
+
+ if ( $result ) {
+
+ return $result;
+
+ }
+
+ }
+
+ $util = new Util( $view, \OCP\User::getUser() );
+
+ list( $owner, $filename ) = $util->getUidAndFilename( $filePath );
+ $filePath_f = ltrim( $filename, '/' );
+
+ $keyfilePath = '/' . $owner . '/files_encryption/keyfiles/' . $filePath_f . '.key';
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ if ( $view->file_exists( $keyfilePath ) ) {
+
+ $result = $view->file_get_contents( $keyfilePath );
+
+ } else {
+
+ $result = false;
+
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+
+ }
+
+ /**
+ * @brief Delete a keyfile
+ *
+ * @param \OC_FilesystemView $view
+ * @param string $userId username
+ * @param string $path path of the file the key belongs to
+ * @return bool Outcome of unlink operation
+ * @note $path must be relative to data/user/files. e.g. mydoc.txt NOT
+ * /data/admin/files/mydoc.txt
+ */
+ public static function deleteFileKey( \OC_FilesystemView $view, $userId, $path ) {
+
+ $trimmed = ltrim( $path, '/' );
+ $keyPath = '/' . $userId . '/files_encryption/keyfiles/' . $trimmed;
+
+ $result = false;
+
+ if ( $view->is_dir( $keyPath ) ) {
+
+ $result = $view->unlink( $keyPath );
+
+ } else if ( $view->file_exists( $keyPath . '.key' ) ) {
+
+ $result = $view->unlink( $keyPath . '.key' );
+
+ }
+
+ if ( !$result ) {
+
+ \OC_Log::write( 'Encryption library', 'Could not delete keyfile; does not exist: "' . $keyPath, \OC_Log::ERROR );
+
+ }
+
+ return $result;
+
+ }
+
+ /**
+ * @brief store private key from the user
+ * @param string $key
+ * @return bool
+ * @note Encryption of the private key must be performed by client code
+ * as no encryption takes place here
+ */
+ public static function setPrivateKey( $key ) {
+
+ $user = \OCP\User::getUser();
+
+ $view = new \OC_FilesystemView( '/' . $user . '/files_encryption' );
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ if ( !$view->file_exists( '' ) )
+ $view->mkdir( '' );
+
+ $result = $view->file_put_contents( $user . '.private.key', $key );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+
+ }
+
+ /**
+ * @brief store share key
+ *
+ * @param \OC_FilesystemView $view
+ * @param string $path relative path of the file, including filename
+ * @param $userId
+ * @param $shareKey
+ * @internal param string $key
+ * @internal param string $dbClassName
+ * @return bool true/false
+ * @note The keyfile is not encrypted here. Client code must
+ * asymmetrically encrypt the keyfile before passing it to this method
+ */
+ public static function setShareKey( \OC_FilesystemView $view, $path, $userId, $shareKey ) {
+
+ // Here we need the currently logged in user, while userId can be a different user
+ $util = new Util( $view, \OCP\User::getUser() );
+
+ list( $owner, $filename ) = $util->getUidAndFilename( $path );
+
+ $basePath = '/' . $owner . '/files_encryption/share-keys';
+
+ $shareKeyPath = self::keySetPreparation( $view, $filename, $basePath, $owner );
+
+ // try reusing key file if part file
+ if ( self::isPartialFilePath( $shareKeyPath ) ) {
+
+ $writePath = $basePath . '/' . self::fixPartialFilePath( $shareKeyPath ) . '.' . $userId . '.shareKey';
+
+ } else {
+
+ $writePath = $basePath . '/' . $shareKeyPath . '.' . $userId . '.shareKey';
+
+ }
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $result = $view->file_put_contents( $writePath, $shareKey );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ if (
+ is_int( $result )
+ && $result > 0
+ ) {
+
+ return true;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief store multiple share keys for a single file
+ * @param \OC_FilesystemView $view
+ * @param $path
+ * @param array $shareKeys
+ * @return bool
+ */
+ public static function setShareKeys( \OC_FilesystemView $view, $path, array $shareKeys ) {
+
+ // $shareKeys must be an array with the following format:
+ // [userId] => [encrypted key]
+
+ $result = true;
+
+ foreach ( $shareKeys as $userId => $shareKey ) {
+
+ if ( !self::setShareKey( $view, $path, $userId, $shareKey ) ) {
+
+ // If any of the keys are not set, flag false
+ $result = false;
+
+ }
+
+ }
+
+ // Returns false if any of the keys weren't set
+ return $result;
+
+ }
+
+ /**
+ * @brief retrieve shareKey for an encrypted file
+ * @param \OC_FilesystemView $view
+ * @param string $userId
+ * @param string $filePath
+ * @internal param \OCA\Encryption\file $string name
+ * @return string file key or false
+ * @note The sharekey returned is encrypted. Decryption
+ * of the keyfile must be performed by client code
+ */
+ public static function getShareKey( \OC_FilesystemView $view, $userId, $filePath ) {
+
+ // try reusing key file if part file
+ if ( self::isPartialFilePath( $filePath ) ) {
+
+ $result = self::getShareKey( $view, $userId, self::fixPartialFilePath( $filePath ) );
+
+ if ( $result ) {
+
+ return $result;
+
+ }
+
+ }
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ //here we need the currently logged in user, while userId can be a different user
+ $util = new Util( $view, \OCP\User::getUser() );
+
+ list( $owner, $filename ) = $util->getUidAndFilename( $filePath );
+ $shareKeyPath = \OC\Files\Filesystem::normalizePath( '/' . $owner . '/files_encryption/share-keys/' . $filename . '.' . $userId . '.shareKey' );
+
+ if ( $view->file_exists( $shareKeyPath ) ) {
+
+ $result = $view->file_get_contents( $shareKeyPath );
+
+ } else {
+
+ $result = false;
+
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+
+ }
+
+ /**
+ * @brief delete all share keys of a given file
+ * @param \OC_FilesystemView $view
+ * @param string $userId owner of the file
+ * @param string $filePath path to the file, relative to the owners file dir
+ */
+ public static function delAllShareKeys( \OC_FilesystemView $view, $userId, $filePath ) {
+
+ if ( $view->is_dir( $userId . '/files/' . $filePath ) ) {
+ $view->unlink( $userId . '/files_encryption/share-keys/' . $filePath );
+ } else {
+ $localKeyPath = $view->getLocalFile( $userId . '/files_encryption/share-keys/' . $filePath );
+ $matches = glob( preg_quote( $localKeyPath ) . '*.shareKey' );
+ foreach ( $matches as $ma ) {
+ $result = unlink( $ma );
+ if ( !$result ) {
+ \OC_Log::write( 'Encryption library', 'Keyfile or shareKey could not be deleted for file "' . $filePath . '"', \OC_Log::ERROR );
+ }
+ }
+ }
+ }
+
+ /**
+ * @brief Delete a single user's shareKey for a single file
+ */
+ public static function delShareKey( \OC_FilesystemView $view, $userIds, $filePath ) {
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ //here we need the currently logged in user, while userId can be a different user
+ $util = new Util( $view, \OCP\User::getUser() );
+
+ list( $owner, $filename ) = $util->getUidAndFilename( $filePath );
+
+ $shareKeyPath = \OC\Files\Filesystem::normalizePath( '/' . $owner . '/files_encryption/share-keys/' . $filename );
+
+ if ( $view->is_dir( $shareKeyPath ) ) {
+
+ $localPath = \OC\Files\Filesystem::normalizePath( $view->getLocalFolder( $shareKeyPath ) );
+ self::recursiveDelShareKeys( $localPath, $userIds );
+
+ } else {
+
+ foreach ( $userIds as $userId ) {
+
+ if ( !$view->unlink( $shareKeyPath . '.' . $userId . '.shareKey' ) ) {
+ \OC_Log::write( 'Encryption library', 'Could not delete shareKey; does not exist: "' . $shareKeyPath . '.' . $userId . '.shareKey"', \OC_Log::ERROR );
+ }
+
+ }
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+ }
+
+ /**
+ * @brief recursively delete share keys from given users
+ *
+ * @param string $dir directory
+ * @param array $userIds user ids for which the share keys should be deleted
+ */
+ private static function recursiveDelShareKeys( $dir, $userIds ) {
+ foreach ( $userIds as $userId ) {
+ $matches = glob( preg_quote( $dir ) . '/*' . preg_quote( '.' . $userId . '.shareKey' ) );
+ }
+ /** @var $matches array */
+ foreach ( $matches as $ma ) {
+ if ( !unlink( $ma ) ) {
+ \OC_Log::write( 'Encryption library', 'Could not delete shareKey; does not exist: "' . $ma . '"', \OC_Log::ERROR );
+ }
+ }
+ $subdirs = $directories = glob( preg_quote( $dir ) . '/*', GLOB_ONLYDIR );
+ foreach ( $subdirs as $subdir ) {
+ self::recursiveDelShareKeys( $subdir, $userIds );
+ }
+ }
+
+ /**
+ * @brief Make preparations to vars and filesystem for saving a keyfile
+ */
+ public static function keySetPreparation( \OC_FilesystemView $view, $path, $basePath, $userId ) {
+
+ $targetPath = ltrim( $path, '/' );
+
+ $path_parts = pathinfo( $targetPath );
+
+ // If the file resides within a subdirectory, create it
+ if (
+ isset( $path_parts['dirname'] )
+ && !$view->file_exists( $basePath . '/' . $path_parts['dirname'] )
+ ) {
+ $sub_dirs = explode( DIRECTORY_SEPARATOR, $basePath . '/' . $path_parts['dirname'] );
+ $dir = '';
+ foreach ( $sub_dirs as $sub_dir ) {
+ $dir .= '/' . $sub_dir;
+ if ( !$view->is_dir( $dir ) ) {
+ $view->mkdir( $dir );
+ }
+ }
+ }
+
+ return $targetPath;
+
+ }
+}
\ No newline at end of file
--- /dev/null
+<?php
+
+/**
+ * ownCloud
+ *
+ * @author Sam Tuke, Robin Appelman
+ * @copyright 2012 Sam Tuke samtuke@owncloud.com, Robin Appelman
+ * icewind1991@gmail.com
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * @brief Encryption proxy which handles filesystem operations before and after
+ * execution and encrypts, and handles keyfiles accordingly. Used for
+ * webui.
+ */
+
+namespace OCA\Encryption;
+
+/**
+ * Class Proxy
+ * @package OCA\Encryption
+ */
+class Proxy extends \OC_FileProxy
+{
+
+ private static $blackList = null; //mimetypes blacklisted from encryption
+
+ private static $enableEncryption = null;
+
+ /**
+ * Check if a file requires encryption
+ * @param string $path
+ * @return bool
+ *
+ * Tests if server side encryption is enabled, and file is allowed by blacklists
+ */
+ private static function shouldEncrypt( $path ) {
+
+ if ( is_null( self::$enableEncryption ) ) {
+
+ if (
+ \OCP\Config::getAppValue( 'files_encryption', 'enable_encryption', 'true' ) == 'true'
+ && Crypt::mode() == 'server'
+ ) {
+
+ self::$enableEncryption = true;
+
+ } else {
+
+ self::$enableEncryption = false;
+
+ }
+
+ }
+
+ if ( !self::$enableEncryption ) {
+
+ return false;
+
+ }
+
+ if ( is_null( self::$blackList ) ) {
+
+ self::$blackList = explode( ',', \OCP\Config::getAppValue( 'files_encryption', 'type_blacklist', '' ) );
+
+ }
+
+ if ( Crypt::isCatfileContent( $path ) ) {
+
+ return true;
+
+ }
+
+ $extension = substr( $path, strrpos( $path, '.' ) + 1 );
+
+ if ( array_search( $extension, self::$blackList ) === false ) {
+
+ return true;
+
+ }
+
+ return false;
+ }
+
+ /**
+ * @param $path
+ * @param $data
+ * @return bool
+ */
+ public function preFile_put_contents( $path, &$data ) {
+
+ if ( self::shouldEncrypt( $path ) ) {
+
+ // Stream put contents should have been converted to fopen
+ if ( !is_resource( $data ) ) {
+
+ $userId = \OCP\USER::getUser();
+ $view = new \OC_FilesystemView( '/' );
+ $util = new Util( $view, $userId );
+ $session = new Session( $view );
+ $privateKey = $session->getPrivateKey();
+ $filePath = $util->stripUserFilesPath( $path );
+ // Set the filesize for userland, before encrypting
+ $size = strlen( $data );
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Check if there is an existing key we can reuse
+ if ( $encKeyfile = Keymanager::getFileKey( $view, $userId, $filePath ) ) {
+
+ // Fetch shareKey
+ $shareKey = Keymanager::getShareKey( $view, $userId, $filePath );
+
+ // Decrypt the keyfile
+ $plainKey = Crypt::multiKeyDecrypt( $encKeyfile, $shareKey, $privateKey );
+
+ } else {
+
+ // Make a new key
+ $plainKey = Crypt::generateKey();
+
+ }
+
+ // Encrypt data
+ $encData = Crypt::symmetricEncryptFileContent( $data, $plainKey );
+
+ $sharingEnabled = \OCP\Share::isEnabled();
+
+ // if file exists try to get sharing users
+ if ( $view->file_exists( $path ) ) {
+ $uniqueUserIds = $util->getSharingUsersArray( $sharingEnabled, $filePath, $userId );
+ } else {
+ $uniqueUserIds[] = $userId;
+ }
+
+ // Fetch public keys for all users who will share the file
+ $publicKeys = Keymanager::getPublicKeys( $view, $uniqueUserIds );
+
+ // Encrypt plain keyfile to multiple sharefiles
+ $multiEncrypted = Crypt::multiKeyEncrypt( $plainKey, $publicKeys );
+
+ // Save sharekeys to user folders
+ Keymanager::setShareKeys( $view, $filePath, $multiEncrypted['keys'] );
+
+ // Set encrypted keyfile as common varname
+ $encKey = $multiEncrypted['data'];
+
+ // Save keyfile for newly encrypted file in parallel directory tree
+ Keymanager::setFileKey( $view, $filePath, $userId, $encKey );
+
+ // Replace plain content with encrypted content by reference
+ $data = $encData;
+
+ // Update the file cache with file info
+ \OC\Files\Filesystem::putFileInfo( $filePath, array( 'encrypted' => true, 'size' => strlen( $data ), 'unencrypted_size' => $size ), '' );
+
+ // Re-enable proxy - our work is done
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ }
+ }
+
+ return true;
+
+ }
+
+ /**
+ * @param string $path Path of file from which has been read
+ * @param string $data Data that has been read from file
+ */
+ public function postFile_get_contents( $path, $data ) {
+
+ $userId = \OCP\USER::getUser();
+ $view = new \OC_FilesystemView( '/' );
+ $util = new Util( $view, $userId );
+
+ $relPath = $util->stripUserFilesPath( $path );
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // init session
+ $session = new Session( $view );
+
+ // If data is a catfile
+ if (
+ Crypt::mode() == 'server'
+ && Crypt::isCatfileContent( $data )
+ ) {
+
+ $privateKey = $session->getPrivateKey( $userId );
+
+ // Get the encrypted keyfile
+ $encKeyfile = Keymanager::getFileKey( $view, $userId, $relPath );
+
+ // Attempt to fetch the user's shareKey
+ $shareKey = Keymanager::getShareKey( $view, $userId, $relPath );
+
+ // Decrypt keyfile with shareKey
+ $plainKeyfile = Crypt::multiKeyDecrypt( $encKeyfile, $shareKey, $privateKey );
+
+ $plainData = Crypt::symmetricDecryptFileContent( $data, $plainKeyfile );
+
+ } elseif (
+ Crypt::mode() == 'server'
+ && isset( $_SESSION['legacyenckey'] )
+ && Crypt::isEncryptedMeta( $path )
+ ) {
+ $plainData = Crypt::legacyDecrypt( $data, $session->getLegacyKey() );
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ if ( !isset( $plainData ) ) {
+
+ $plainData = $data;
+
+ }
+
+ return $plainData;
+
+ }
+
+ /**
+ * @brief When a file is deleted, remove its keyfile also
+ */
+ public function preUnlink( $path ) {
+
+ // let the trashbin handle this
+ if ( \OCP\App::isEnabled( 'files_trashbin' ) ) {
+ return true;
+ }
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $view = new \OC_FilesystemView( '/' );
+
+ $userId = \OCP\USER::getUser();
+
+ $util = new Util( $view, $userId );
+
+ // Format path to be relative to user files dir
+ $relPath = $util->stripUserFilesPath( $path );
+
+ list( $owner, $ownerPath ) = $util->getUidAndFilename( $relPath );
+
+ // Delete keyfile & shareKey so it isn't orphaned
+ if ( !Keymanager::deleteFileKey( $view, $owner, $ownerPath ) ) {
+ \OC_Log::write( 'Encryption library', 'Keyfile or shareKey could not be deleted for file "' . $ownerPath . '"', \OC_Log::ERROR );
+ }
+
+ Keymanager::delAllShareKeys( $view, $owner, $ownerPath );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // If we don't return true then file delete will fail; better
+ // to leave orphaned keyfiles than to disallow file deletion
+ return true;
+
+ }
+
+ /**
+ * @param $path
+ * @return bool
+ */
+ public function postTouch( $path ) {
+ $this->handleFile( $path );
+
+ return true;
+ }
+
+ /**
+ * @param $path
+ * @param $result
+ * @return resource
+ */
+ public function postFopen( $path, &$result ) {
+
+ if ( !$result ) {
+
+ return $result;
+
+ }
+
+ // Reformat path for use with OC_FSV
+ $path_split = explode( '/', $path );
+ $path_f = implode( '/', array_slice( $path_split, 3 ) );
+
+ // FIXME: handling for /userId/cache used by webdav for chunking. The cache chunks are NOT encrypted
+ if ( count($path_split) >= 2 && $path_split[2] == 'cache' ) {
+ return $result;
+ }
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $meta = stream_get_meta_data( $result );
+
+ $view = new \OC_FilesystemView( '' );
+
+ $util = new Util( $view, \OCP\USER::getUser() );
+
+ // If file is already encrypted, decrypt using crypto protocol
+ if (
+ Crypt::mode() == 'server'
+ && $util->isEncryptedPath( $path )
+ ) {
+
+ // Close the original encrypted file
+ fclose( $result );
+
+ // Open the file using the crypto stream wrapper
+ // protocol and let it do the decryption work instead
+ $result = fopen( 'crypt://' . $path_f, $meta['mode'] );
+
+ } elseif (
+ self::shouldEncrypt( $path )
+ and $meta ['mode'] != 'r'
+ and $meta['mode'] != 'rb'
+ ) {
+ $result = fopen( 'crypt://' . $path_f, $meta['mode'] );
+ }
+
+ // Re-enable the proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+
+ }
+
+ /**
+ * @param $path
+ * @param $data
+ * @return array
+ */
+ public function postGetFileInfo( $path, $data ) {
+
+ // if path is a folder do nothing
+ if ( is_array( $data ) && array_key_exists( 'size', $data ) ) {
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get file size
+ $data['size'] = self::postFileSize( $path, $data['size'] );
+
+ // Re-enable the proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+ }
+
+ return $data;
+ }
+
+ /**
+ * @param $path
+ * @param $size
+ * @return bool
+ */
+ public function postFileSize( $path, $size ) {
+
+ $view = new \OC_FilesystemView( '/' );
+
+ // if path is a folder do nothing
+ if ( $view->is_dir( $path ) ) {
+ return $size;
+ }
+
+ // Reformat path for use with OC_FSV
+ $path_split = explode( '/', $path );
+ $path_f = implode( '/', array_slice( $path_split, 3 ) );
+
+ // if path is empty we cannot resolve anything
+ if ( empty( $path_f ) ) {
+ return $size;
+ }
+
+ $fileInfo = false;
+ // get file info from database/cache if not .part file
+ if ( !Keymanager::isPartialFilePath( $path ) ) {
+ $fileInfo = $view->getFileInfo( $path );
+ }
+
+ // if file is encrypted return real file size
+ if ( is_array( $fileInfo ) && $fileInfo['encrypted'] === true ) {
+ $size = $fileInfo['unencrypted_size'];
+ } else {
+ // self healing if file was removed from file cache
+ if ( !is_array( $fileInfo ) ) {
+ $fileInfo = array();
+ }
+
+ $userId = \OCP\User::getUser();
+ $util = new Util( $view, $userId );
+ $fixSize = $util->getFileSize( $path );
+ if ( $fixSize > 0 ) {
+ $size = $fixSize;
+
+ $fileInfo['encrypted'] = true;
+ $fileInfo['unencrypted_size'] = $size;
+
+ // put file info if not .part file
+ if ( !Keymanager::isPartialFilePath( $path_f ) ) {
+ $view->putFileInfo( $path, $fileInfo );
+ }
+ }
+
+ }
+ return $size;
+ }
+
+ /**
+ * @param $path
+ */
+ public function handleFile( $path ) {
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $view = new \OC_FilesystemView( '/' );
+ $session = new Session( $view );
+ $userId = \OCP\User::getUser();
+ $util = new Util( $view, $userId );
+
+ // Reformat path for use with OC_FSV
+ $path_split = explode( '/', $path );
+ $path_f = implode( '/', array_slice( $path_split, 3 ) );
+
+ // only if file is on 'files' folder fix file size and sharing
+ if ( count($path_split) >= 2 && $path_split[2] == 'files' && $util->fixFileSize( $path ) ) {
+
+ // get sharing app state
+ $sharingEnabled = \OCP\Share::isEnabled();
+
+ // get users
+ $usersSharing = $util->getSharingUsersArray( $sharingEnabled, $path_f );
+
+ // update sharing-keys
+ $util->setSharedFileKeyfiles( $session, $usersSharing, $path_f );
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+ }
+}
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Sam Tuke
+ * @copyright 2012 Sam Tuke samtuke@owncloud.com
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Encryption;
+
+/**
+ * Class for handling encryption related session data
+ */
+
+class Session
+{
+
+ private $view;
+
+ /**
+ * @brief if session is started, check if ownCloud key pair is set up, if not create it
+ * @param \OC_FilesystemView $view
+ *
+ * @note The ownCloud key pair is used to allow public link sharing even if encryption is enabled
+ */
+ public function __construct( $view ) {
+
+ $this->view = $view;
+
+ if ( !$this->view->is_dir( 'owncloud_private_key' ) ) {
+
+ $this->view->mkdir( 'owncloud_private_key' );
+
+ }
+
+ $publicShareKeyId = \OC_Appconfig::getValue( 'files_encryption', 'publicShareKeyId' );
+
+ if ( $publicShareKeyId === null ) {
+ $publicShareKeyId = 'pubShare_' . substr( md5( time() ), 0, 8 );
+ \OC_Appconfig::setValue( 'files_encryption', 'publicShareKeyId', $publicShareKeyId );
+ }
+
+ if (
+ !$this->view->file_exists( "/public-keys/" . $publicShareKeyId . ".public.key" )
+ || !$this->view->file_exists( "/owncloud_private_key/" . $publicShareKeyId . ".private.key" )
+ ) {
+
+ $keypair = Crypt::createKeypair();
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Save public key
+
+ if ( !$view->is_dir( '/public-keys' ) ) {
+ $view->mkdir( '/public-keys' );
+ }
+
+ $this->view->file_put_contents( '/public-keys/' . $publicShareKeyId . '.public.key', $keypair['publicKey'] );
+
+ // Encrypt private key empty passphrase
+ $encryptedPrivateKey = Crypt::symmetricEncryptFileContent( $keypair['privateKey'], '' );
+
+ // Save private key
+ $this->view->file_put_contents( '/owncloud_private_key/' . $publicShareKeyId . '.private.key', $encryptedPrivateKey );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ }
+
+ if ( \OCP\USER::getUser() === false ||
+ ( isset( $_GET['service'] ) && $_GET['service'] == 'files' &&
+ isset( $_GET['t'] ) )
+ ) {
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $encryptedKey = $this->view->file_get_contents( '/owncloud_private_key/' . $publicShareKeyId . '.private.key' );
+ $privateKey = Crypt::symmetricDecryptFileContent( $encryptedKey, '' );
+ $this->setPrivateKey( $privateKey );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+ }
+ }
+
+ /**
+ * @brief Sets user private key to session
+ * @param string $privateKey
+ * @return bool
+ */
+ public function setPrivateKey( $privateKey ) {
+
+ $_SESSION['privateKey'] = $privateKey;
+
+ return true;
+
+ }
+
+ /**
+ * @brief Gets user private key from session
+ * @returns string $privateKey The user's plaintext private key
+ *
+ */
+ public function getPrivateKey() {
+
+ if (
+ isset( $_SESSION['privateKey'] )
+ && !empty( $_SESSION['privateKey'] )
+ ) {
+
+ return $_SESSION['privateKey'];
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief Sets user legacy key to session
+ * @param $legacyKey
+ * @return bool
+ */
+ public function setLegacyKey( $legacyKey ) {
+
+ $_SESSION['legacyKey'] = $legacyKey;
+
+ return true;
+ }
+
+ /**
+ * @brief Gets user legacy key from session
+ * @returns string $legacyKey The user's plaintext legacy key
+ *
+ */
+ public function getLegacyKey() {
+
+ if (
+ isset( $_SESSION['legacyKey'] )
+ && !empty( $_SESSION['legacyKey'] )
+ ) {
+
+ return $_SESSION['legacyKey'];
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+}
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Robin Appelman
+ * @copyright 2012 Sam Tuke <samtuke@owncloud.com>, 2011 Robin Appelman
+ * <icewind1991@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * transparently encrypted filestream
+ *
+ * you can use it as wrapper around an existing stream by setting CryptStream::$sourceStreams['foo']=array('path'=>$path,'stream'=>$stream)
+ * and then fopen('crypt://streams/foo');
+ */
+
+namespace OCA\Encryption;
+
+/**
+ * @brief Provides 'crypt://' stream wrapper protocol.
+ * @note We use a stream wrapper because it is the most secure way to handle
+ * decrypted content transfers. There is no safe way to decrypt the entire file
+ * somewhere on the server, so we have to encrypt and decrypt blocks on the fly.
+ * @note Paths used with this protocol MUST BE RELATIVE. Use URLs like:
+ * crypt://filename, or crypt://subdirectory/filename, NOT
+ * crypt:///home/user/owncloud/data. Otherwise keyfiles will be put in
+ * [owncloud]/data/user/files_encryption/keyfiles/home/user/owncloud/data and
+ * will not be accessible to other methods.
+ * @note Data read and written must always be 8192 bytes long, as this is the
+ * buffer size used internally by PHP. The encryption process makes the input
+ * data longer, and input is chunked into smaller pieces in order to result in
+ * a 8192 encrypted block size.
+ * @note When files are deleted via webdav, or when they are updated and the
+ * previous version deleted, this is handled by OC\Files\View, and thus the
+ * encryption proxies are used and keyfiles deleted.
+ */
+class Stream
+{
+ private $plainKey;
+ private $encKeyfiles;
+
+ private $rawPath; // The raw path relative to the data dir
+ private $relPath; // rel path to users file dir
+ private $userId;
+ private $handle; // Resource returned by fopen
+ private $path;
+ private $readBuffer; // For streams that dont support seeking
+ private $meta = array(); // Header / meta for source stream
+ private $count;
+ private $writeCache;
+ private $size;
+ private $unencryptedSize;
+ private $publicKey;
+ private $keyfile;
+ private $encKeyfile;
+ private static $view; // a fsview object set to user dir
+ private $rootView; // a fsview object set to '/'
+
+ /**
+ * @param $path
+ * @param $mode
+ * @param $options
+ * @param $opened_path
+ * @return bool
+ */
+ public function stream_open( $path, $mode, $options, &$opened_path ) {
+
+ if ( !isset( $this->rootView ) ) {
+ $this->rootView = new \OC_FilesystemView( '/' );
+ }
+
+ $util = new Util( $this->rootView, \OCP\USER::getUser() );
+
+ $this->userId = $util->getUserId();
+
+ // Strip identifier text from path, this gives us the path relative to data/<user>/files
+ $this->relPath = \OC\Files\Filesystem::normalizePath( str_replace( 'crypt://', '', $path ) );
+
+ // rawPath is relative to the data directory
+ $this->rawPath = $util->getUserFilesDir() . $this->relPath;
+
+ // Disable fileproxies so we can get the file size and open the source file without recursive encryption
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ if (
+ $mode == 'w'
+ or $mode == 'w+'
+ or $mode == 'wb'
+ or $mode == 'wb+'
+ ) {
+
+ // We're writing a new file so start write counter with 0 bytes
+ $this->size = 0;
+ $this->unencryptedSize = 0;
+
+ } else {
+
+ $this->size = $this->rootView->filesize( $this->rawPath, $mode );
+ }
+
+ $this->handle = $this->rootView->fopen( $this->rawPath, $mode );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ if ( !is_resource( $this->handle ) ) {
+
+ \OCP\Util::writeLog( 'files_encryption', 'failed to open file "' . $this->rawPath . '"', \OCP\Util::ERROR );
+
+ } else {
+
+ $this->meta = stream_get_meta_data( $this->handle );
+
+ }
+
+
+ return is_resource( $this->handle );
+
+ }
+
+ /**
+ * @param $offset
+ * @param int $whence
+ */
+ public function stream_seek( $offset, $whence = SEEK_SET ) {
+
+ $this->flush();
+
+ fseek( $this->handle, $offset, $whence );
+
+ }
+
+ /**
+ * @param $count
+ * @return bool|string
+ * @throws \Exception
+ */
+ public function stream_read( $count ) {
+
+ $this->writeCache = '';
+
+ if ( $count != 8192 ) {
+
+ // $count will always be 8192 https://bugs.php.net/bug.php?id=21641
+ // This makes this function a lot simpler, but will break this class if the above 'bug' gets 'fixed'
+ \OCP\Util::writeLog( 'files_encryption', 'PHP "bug" 21641 no longer holds, decryption system requires refactoring', \OCP\Util::FATAL );
+
+ die();
+
+ }
+
+ // Get the data from the file handle
+ $data = fread( $this->handle, 8192 );
+
+ $result = '';
+
+ if ( strlen( $data ) ) {
+
+ if ( !$this->getKey() ) {
+
+ // Error! We don't have a key to decrypt the file with
+ throw new \Exception( 'Encryption key not found for "' . $this->rawPath . '" during attempted read via stream' );
+
+ }
+
+ // Decrypt data
+ $result = Crypt::symmetricDecryptFileContent( $data, $this->plainKey );
+
+ }
+
+ return $result;
+
+ }
+
+ /**
+ * @brief Encrypt and pad data ready for writing to disk
+ * @param string $plainData data to be encrypted
+ * @param string $key key to use for encryption
+ * @return string encrypted data on success, false on failure
+ */
+ public function preWriteEncrypt( $plainData, $key ) {
+
+ // Encrypt data to 'catfile', which includes IV
+ if ( $encrypted = Crypt::symmetricEncryptFileContent( $plainData, $key ) ) {
+
+ return $encrypted;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief Fetch the plain encryption key for the file and set it as plainKey property
+ * @internal param bool $generate if true, a new key will be generated if none can be found
+ * @return bool true on key found and set, false on key not found and new key generated and set
+ */
+ public function getKey() {
+
+ // Check if key is already set
+ if ( isset( $this->plainKey ) && isset( $this->encKeyfile ) ) {
+
+ return true;
+
+ }
+
+ // Fetch and decrypt keyfile
+ // Fetch existing keyfile
+ $this->encKeyfile = Keymanager::getFileKey( $this->rootView, $this->userId, $this->relPath );
+
+ // If a keyfile already exists
+ if ( $this->encKeyfile ) {
+
+ $session = new Session( $this->rootView );
+
+ $privateKey = $session->getPrivateKey( $this->userId );
+
+ $shareKey = Keymanager::getShareKey( $this->rootView, $this->userId, $this->relPath );
+
+ $this->plainKey = Crypt::multiKeyDecrypt( $this->encKeyfile, $shareKey, $privateKey );
+
+ return true;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief Handle plain data from the stream, and write it in 8192 byte blocks
+ * @param string $data data to be written to disk
+ * @note the data will be written to the path stored in the stream handle, set in stream_open()
+ * @note $data is only ever be a maximum of 8192 bytes long. This is set by PHP internally. stream_write() is called multiple times in a loop on data larger than 8192 bytes
+ * @note Because the encryption process used increases the length of $data, a writeCache is used to carry over data which would not fit in the required block size
+ * @note Padding is added to each encrypted block to ensure that the resulting block is exactly 8192 bytes. This is removed during stream_read
+ * @note PHP automatically updates the file pointer after writing data to reflect it's length. There is generally no need to update the poitner manually using fseek
+ */
+ public function stream_write( $data ) {
+
+ // Disable the file proxies so that encryption is not
+ // automatically attempted when the file is written to disk -
+ // we are handling that separately here and we don't want to
+ // get into an infinite loop
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Get the length of the unencrypted data that we are handling
+ $length = strlen( $data );
+
+ // Find out where we are up to in the writing of data to the
+ // file
+ $pointer = ftell( $this->handle );
+
+ // Get / generate the keyfile for the file we're handling
+ // If we're writing a new file (not overwriting an existing
+ // one), save the newly generated keyfile
+ if ( !$this->getKey() ) {
+
+ $this->plainKey = Crypt::generateKey();
+
+ }
+
+ // If extra data is left over from the last round, make sure it
+ // is integrated into the next 6126 / 8192 block
+ if ( $this->writeCache ) {
+
+ // Concat writeCache to start of $data
+ $data = $this->writeCache . $data;
+
+ // Clear the write cache, ready for reuse - it has been
+ // flushed and its old contents processed
+ $this->writeCache = '';
+
+ }
+
+ // While there still remains some data to be processed & written
+ while ( strlen( $data ) > 0 ) {
+
+ // Remaining length for this iteration, not of the
+ // entire file (may be greater than 8192 bytes)
+ $remainingLength = strlen( $data );
+
+ // If data remaining to be written is less than the
+ // size of 1 6126 byte block
+ if ( $remainingLength < 6126 ) {
+
+ // Set writeCache to contents of $data
+ // The writeCache will be carried over to the
+ // next write round, and added to the start of
+ // $data to ensure that written blocks are
+ // always the correct length. If there is still
+ // data in writeCache after the writing round
+ // has finished, then the data will be written
+ // to disk by $this->flush().
+ $this->writeCache = $data;
+
+ // Clear $data ready for next round
+ $data = '';
+
+ } else {
+
+ // Read the chunk from the start of $data
+ $chunk = substr( $data, 0, 6126 );
+
+ $encrypted = $this->preWriteEncrypt( $chunk, $this->plainKey );
+
+ // Write the data chunk to disk. This will be
+ // attended to the last data chunk if the file
+ // being handled totals more than 6126 bytes
+ fwrite( $this->handle, $encrypted );
+
+ // Remove the chunk we just processed from
+ // $data, leaving only unprocessed data in $data
+ // var, for handling on the next round
+ $data = substr( $data, 6126 );
+
+ }
+
+ }
+
+ $this->size = max( $this->size, $pointer + $length );
+ $this->unencryptedSize += $length;
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $length;
+
+ }
+
+
+ /**
+ * @param $option
+ * @param $arg1
+ * @param $arg2
+ */
+ public function stream_set_option( $option, $arg1, $arg2 ) {
+ $return = false;
+ switch ( $option ) {
+ case STREAM_OPTION_BLOCKING:
+ $return = stream_set_blocking( $this->handle, $arg1 );
+ break;
+ case STREAM_OPTION_READ_TIMEOUT:
+ $return = stream_set_timeout( $this->handle, $arg1, $arg2 );
+ break;
+ case STREAM_OPTION_WRITE_BUFFER:
+ $return = stream_set_write_buffer( $this->handle, $arg1 );
+ }
+
+ return $return;
+ }
+
+ /**
+ * @return array
+ */
+ public function stream_stat() {
+ return fstat( $this->handle );
+ }
+
+ /**
+ * @param $mode
+ */
+ public function stream_lock( $mode ) {
+ return flock( $this->handle, $mode );
+ }
+
+ /**
+ * @return bool
+ */
+ public function stream_flush() {
+
+ return fflush( $this->handle );
+ // Not a typo: http://php.net/manual/en/function.fflush.php
+
+ }
+
+ /**
+ * @return bool
+ */
+ public function stream_eof() {
+ return feof( $this->handle );
+ }
+
+ private function flush() {
+
+ if ( $this->writeCache ) {
+
+ // Set keyfile property for file in question
+ $this->getKey();
+
+ $encrypted = $this->preWriteEncrypt( $this->writeCache, $this->plainKey );
+
+ fwrite( $this->handle, $encrypted );
+
+ $this->writeCache = '';
+
+ }
+
+ }
+
+ /**
+ * @return bool
+ */
+ public function stream_close() {
+
+ $this->flush();
+
+ if (
+ $this->meta['mode'] != 'r'
+ and $this->meta['mode'] != 'rb'
+ and $this->size > 0
+ ) {
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Fetch user's public key
+ $this->publicKey = Keymanager::getPublicKey( $this->rootView, $this->userId );
+
+ // Check if OC sharing api is enabled
+ $sharingEnabled = \OCP\Share::isEnabled();
+
+ $util = new Util( $this->rootView, $this->userId );
+
+ // Get all users sharing the file includes current user
+ $uniqueUserIds = $util->getSharingUsersArray( $sharingEnabled, $this->relPath, $this->userId );
+
+ // Fetch public keys for all sharing users
+ $publicKeys = Keymanager::getPublicKeys( $this->rootView, $uniqueUserIds );
+
+ // Encrypt enc key for all sharing users
+ $this->encKeyfiles = Crypt::multiKeyEncrypt( $this->plainKey, $publicKeys );
+
+ $view = new \OC_FilesystemView( '/' );
+
+ // Save the new encrypted file key
+ Keymanager::setFileKey( $this->rootView, $this->relPath, $this->userId, $this->encKeyfiles['data'] );
+
+ // Save the sharekeys
+ Keymanager::setShareKeys( $view, $this->relPath, $this->encKeyfiles['keys'] );
+
+ // get file info
+ $fileInfo = $view->getFileInfo( $this->rawPath );
+ if ( !is_array( $fileInfo ) ) {
+ $fileInfo = array();
+ }
+
+ // Re-enable proxy - our work is done
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // set encryption data
+ $fileInfo['encrypted'] = true;
+ $fileInfo['size'] = $this->size;
+ $fileInfo['unencrypted_size'] = $this->unencryptedSize;
+
+ // set fileinfo
+ $view->putFileInfo( $this->rawPath, $fileInfo );
+ }
+
+ return fclose( $this->handle );
+
+ }
+
+}
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Sam Tuke, Frank Karlitschek
+ * @copyright 2012 Sam Tuke <samtuke@owncloud.com>,
+ * Frank Karlitschek <frank@owncloud.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+# Bugs
+# ----
+# Sharing a file to a user without encryption set up will not provide them with access but won't notify the sharer
+# Sharing all files to admin for recovery purposes still in progress
+# Possibly public links are broken (not tested since last merge of master)
+
+
+# Missing features
+# ----------------
+# Make sure user knows if large files weren't encrypted
+
+
+# Test
+# ----
+# Test that writing files works when recovery is enabled, and sharing API is disabled
+# Test trashbin support
+
+
+// Old Todo:
+// - Crypt/decrypt button in the userinterface
+// - Setting if crypto should be on by default
+// - Add a setting "Don´t encrypt files larger than xx because of performance
+// reasons"
+
+namespace OCA\Encryption;
+
+/**
+ * @brief Class for utilities relating to encrypted file storage system
+ * @param OC_FilesystemView $view expected to have OC '/' as root path
+ * @param string $userId ID of the logged in user
+ * @param int $client indicating status of client side encryption. Currently
+ * unused, likely to become obsolete shortly
+ */
+
+class Util
+{
+
+ // Web UI:
+
+ //// DONE: files created via web ui are encrypted
+ //// DONE: file created & encrypted via web ui are readable in web ui
+ //// DONE: file created & encrypted via web ui are readable via webdav
+
+
+ // WebDAV:
+
+ //// DONE: new data filled files added via webdav get encrypted
+ //// DONE: new data filled files added via webdav are readable via webdav
+ //// DONE: reading unencrypted files when encryption is enabled works via
+ //// webdav
+ //// DONE: files created & encrypted via web ui are readable via webdav
+
+
+ // Legacy support:
+
+ //// DONE: add method to check if file is encrypted using new system
+ //// DONE: add method to check if file is encrypted using old system
+ //// DONE: add method to fetch legacy key
+ //// DONE: add method to decrypt legacy encrypted data
+
+
+ // Admin UI:
+
+ //// DONE: changing user password also changes encryption passphrase
+
+ //// TODO: add support for optional recovery in case of lost passphrase / keys
+ //// TODO: add admin optional required long passphrase for users
+ //// TODO: implement flag system to allow user to specify encryption by folder, subfolder, etc.
+
+
+ // Integration testing:
+
+ //// TODO: test new encryption with versioning
+ //// DONE: test new encryption with sharing
+ //// TODO: test new encryption with proxies
+
+
+ private $view; // OC_FilesystemView object for filesystem operations
+ private $userId; // ID of the currently logged-in user
+ private $pwd; // User Password
+ private $client; // Client side encryption mode flag
+ private $publicKeyDir; // Dir containing all public user keys
+ private $encryptionDir; // Dir containing user's files_encryption
+ private $keyfilesPath; // Dir containing user's keyfiles
+ private $shareKeysPath; // Dir containing env keys for shared files
+ private $publicKeyPath; // Path to user's public key
+ private $privateKeyPath; // Path to user's private key
+ private $publicShareKeyId;
+ private $recoveryKeyId;
+ private $isPublic;
+
+ /**
+ * @param \OC_FilesystemView $view
+ * @param $userId
+ * @param bool $client
+ */
+ public function __construct( \OC_FilesystemView $view, $userId, $client = false ) {
+
+ $this->view = $view;
+ $this->userId = $userId;
+ $this->client = $client;
+ $this->isPublic = false;
+
+ $this->publicShareKeyId = \OC_Appconfig::getValue( 'files_encryption', 'publicShareKeyId' );
+ $this->recoveryKeyId = \OC_Appconfig::getValue( 'files_encryption', 'recoveryKeyId' );
+
+ // if we are anonymous/public
+ if ( $this->userId === false ||
+ ( isset( $_GET['service'] ) && $_GET['service'] == 'files' &&
+ isset( $_GET['t'] ) )
+ ) {
+ $this->userId = $this->publicShareKeyId;
+
+ // only handle for files_sharing app
+ if ( $GLOBALS['app'] === 'files_sharing' ) {
+ $this->userDir = '/' . $GLOBALS['fileOwner'];
+ $this->fileFolderName = 'files';
+ $this->userFilesDir = '/' . $GLOBALS['fileOwner'] . '/' . $this->fileFolderName; // TODO: Does this need to be user configurable?
+ $this->publicKeyDir = '/' . 'public-keys';
+ $this->encryptionDir = '/' . $GLOBALS['fileOwner'] . '/' . 'files_encryption';
+ $this->keyfilesPath = $this->encryptionDir . '/' . 'keyfiles';
+ $this->shareKeysPath = $this->encryptionDir . '/' . 'share-keys';
+ $this->publicKeyPath = $this->publicKeyDir . '/' . $this->userId . '.public.key'; // e.g. data/public-keys/admin.public.key
+ $this->privateKeyPath = '/owncloud_private_key/' . $this->userId . '.private.key'; // e.g. data/admin/admin.private.key
+ $this->isPublic = true;
+ }
+
+ } else {
+ $this->userDir = '/' . $this->userId;
+ $this->fileFolderName = 'files';
+ $this->userFilesDir = '/' . $this->userId . '/' . $this->fileFolderName; // TODO: Does this need to be user configurable?
+ $this->publicKeyDir = '/' . 'public-keys';
+ $this->encryptionDir = '/' . $this->userId . '/' . 'files_encryption';
+ $this->keyfilesPath = $this->encryptionDir . '/' . 'keyfiles';
+ $this->shareKeysPath = $this->encryptionDir . '/' . 'share-keys';
+ $this->publicKeyPath = $this->publicKeyDir . '/' . $this->userId . '.public.key'; // e.g. data/public-keys/admin.public.key
+ $this->privateKeyPath = $this->encryptionDir . '/' . $this->userId . '.private.key'; // e.g. data/admin/admin.private.key
+ }
+ }
+
+ /**
+ * @return bool
+ */
+ public function ready() {
+
+ if (
+ !$this->view->file_exists( $this->encryptionDir )
+ or !$this->view->file_exists( $this->keyfilesPath )
+ or !$this->view->file_exists( $this->shareKeysPath )
+ or !$this->view->file_exists( $this->publicKeyPath )
+ or !$this->view->file_exists( $this->privateKeyPath )
+ ) {
+
+ return false;
+
+ } else {
+
+ return true;
+
+ }
+
+ }
+
+ /**
+ * @brief Sets up user folders and keys for serverside encryption
+ * @param string $passphrase passphrase to encrypt server-stored private key with
+ */
+ public function setupServerSide( $passphrase = null ) {
+
+ // Set directories to check / create
+ $setUpDirs = array(
+ $this->userDir
+ , $this->userFilesDir
+ , $this->publicKeyDir
+ , $this->encryptionDir
+ , $this->keyfilesPath
+ , $this->shareKeysPath
+ );
+
+ // Check / create all necessary dirs
+ foreach ( $setUpDirs as $dirPath ) {
+
+ if ( !$this->view->file_exists( $dirPath ) ) {
+
+ $this->view->mkdir( $dirPath );
+
+ }
+
+ }
+
+ // Create user keypair
+ // we should never override a keyfile
+ if (
+ !$this->view->file_exists( $this->publicKeyPath )
+ && !$this->view->file_exists( $this->privateKeyPath )
+ ) {
+
+ // Generate keypair
+ $keypair = Crypt::createKeypair();
+
+ \OC_FileProxy::$enabled = false;
+
+ // Save public key
+ $this->view->file_put_contents( $this->publicKeyPath, $keypair['publicKey'] );
+
+ // Encrypt private key with user pwd as passphrase
+ $encryptedPrivateKey = Crypt::symmetricEncryptFileContent( $keypair['privateKey'], $passphrase );
+
+ // Save private key
+ $this->view->file_put_contents( $this->privateKeyPath, $encryptedPrivateKey );
+
+ \OC_FileProxy::$enabled = true;
+
+ } else {
+ // check if public-key exists but private-key is missing
+ if ( $this->view->file_exists( $this->publicKeyPath ) && !$this->view->file_exists( $this->privateKeyPath ) ) {
+ \OC_Log::write( 'Encryption library', 'public key exists but private key is missing for "' . $this->userId . '"', \OC_Log::FATAL );
+ return false;
+ } else if ( !$this->view->file_exists( $this->publicKeyPath ) && $this->view->file_exists( $this->privateKeyPath ) ) {
+ \OC_Log::write( 'Encryption library', 'private key exists but public key is missing for "' . $this->userId . '"', \OC_Log::FATAL );
+ return false;
+ }
+ }
+
+ // If there's no record for this user's encryption preferences
+ if ( false === $this->recoveryEnabledForUser() ) {
+
+ // create database configuration
+ $sql = 'INSERT INTO `*PREFIX*encryption` (`uid`,`mode`,`recovery_enabled`) VALUES (?,?,?)';
+ $args = array( $this->userId, 'server-side', 0 );
+ $query = \OCP\DB::prepare( $sql );
+ $query->execute( $args );
+
+ }
+
+ return true;
+
+ }
+
+ /**
+ * @return string
+ */
+ public function getPublicShareKeyId() {
+ return $this->publicShareKeyId;
+ }
+
+ /**
+ * @brief Check whether pwd recovery is enabled for a given user
+ * @return bool 1 = yes, 0 = no, false = no record
+ *
+ * @note If records are not being returned, check for a hidden space
+ * at the start of the uid in db
+ */
+ public function recoveryEnabledForUser() {
+
+ $sql = 'SELECT
+ recovery_enabled
+ FROM
+ `*PREFIX*encryption`
+ WHERE
+ uid = ?';
+
+ $args = array( $this->userId );
+
+ $query = \OCP\DB::prepare( $sql );
+
+ $result = $query->execute( $args );
+
+ $recoveryEnabled = array();
+
+ while ( $row = $result->fetchRow() ) {
+
+ $recoveryEnabled[] = $row['recovery_enabled'];
+
+ }
+
+ // If no record is found
+ if ( empty( $recoveryEnabled ) ) {
+
+ return false;
+
+ // If a record is found
+ } else {
+
+ return $recoveryEnabled[0];
+
+ }
+
+ }
+
+ /**
+ * @brief Enable / disable pwd recovery for a given user
+ * @param bool $enabled Whether to enable or disable recovery
+ * @return bool
+ */
+ public function setRecoveryForUser( $enabled ) {
+
+ $recoveryStatus = $this->recoveryEnabledForUser();
+
+ // If a record for this user already exists, update it
+ if ( false === $recoveryStatus ) {
+
+ $sql = 'INSERT INTO `*PREFIX*encryption`
+ (`uid`,`mode`,`recovery_enabled`)
+ VALUES (?,?,?)';
+
+ $args = array( $this->userId, 'server-side', $enabled );
+
+ // Create a new record instead
+ } else {
+
+ $sql = 'UPDATE
+ *PREFIX*encryption
+ SET
+ recovery_enabled = ?
+ WHERE
+ uid = ?';
+
+ $args = array( $enabled, $this->userId );
+
+ }
+
+ $query = \OCP\DB::prepare( $sql );
+
+ if ( $query->execute( $args ) ) {
+
+ return true;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief Find all files and their encryption status within a directory
+ * @param string $directory The path of the parent directory to search
+ * @return mixed false if 0 found, array on success. Keys: name, path
+ * @note $directory needs to be a path relative to OC data dir. e.g.
+ * /admin/files NOT /backup OR /home/www/oc/data/admin/files
+ */
+ public function findEncFiles( $directory, &$found = false ) {
+
+ // Disable proxy - we don't want files to be decrypted before
+ // we handle them
+ \OC_FileProxy::$enabled = false;
+
+ if ( $found == false ) {
+ $found = array( 'plain' => array(), 'encrypted' => array(), 'legacy' => array() );
+ }
+
+ if (
+ $this->view->is_dir( $directory )
+ && $handle = $this->view->opendir( $directory )
+ ) {
+
+ while ( false !== ( $file = readdir( $handle ) ) ) {
+
+ if (
+ $file != "."
+ && $file != ".."
+ ) {
+
+ $filePath = $directory . '/' . $this->view->getRelativePath( '/' . $file );
+ $relPath = $this->stripUserFilesPath( $filePath );
+
+ // If the path is a directory, search
+ // its contents
+ if ( $this->view->is_dir( $filePath ) ) {
+
+ $this->findEncFiles( $filePath, $found );
+
+ // If the path is a file, determine
+ // its encryption status
+ } elseif ( $this->view->is_file( $filePath ) ) {
+
+ // Disable proxies again, some-
+ // where they got re-enabled :/
+ \OC_FileProxy::$enabled = false;
+
+ $data = $this->view->file_get_contents( $filePath );
+
+ // If the file is encrypted
+ // NOTE: If the userId is
+ // empty or not set, file will
+ // detected as plain
+ // NOTE: This is inefficient;
+ // scanning every file like this
+ // will eat server resources :(
+ if (
+ Keymanager::getFileKey( $this->view, $this->userId, $relPath )
+ && Crypt::isCatfileContent( $data )
+ ) {
+
+ $found['encrypted'][] = array( 'name' => $file, 'path' => $filePath );
+
+ // If the file uses old
+ // encryption system
+ } elseif ( Crypt::isLegacyEncryptedContent( $this->tail( $filePath, 3 ), $relPath ) ) {
+
+ $found['legacy'][] = array( 'name' => $file, 'path' => $filePath );
+
+ // If the file is not encrypted
+ } else {
+
+ $found['plain'][] = array( 'name' => $file, 'path' => $relPath );
+
+ }
+
+ }
+
+ }
+
+ }
+
+ \OC_FileProxy::$enabled = true;
+
+ if ( empty( $found ) ) {
+
+ return false;
+
+ } else {
+
+ return $found;
+
+ }
+
+ }
+
+ \OC_FileProxy::$enabled = true;
+
+ return false;
+
+ }
+
+ /**
+ * @brief Fetch the last lines of a file efficiently
+ * @note Safe to use on large files; does not read entire file to memory
+ * @note Derivative of http://tekkie.flashbit.net/php/tail-functionality-in-php
+ */
+ public function tail( $filename, $numLines ) {
+
+ \OC_FileProxy::$enabled = false;
+
+ $text = '';
+ $pos = -1;
+ $handle = $this->view->fopen( $filename, 'r' );
+
+ while ( $numLines > 0 ) {
+
+ --$pos;
+
+ if ( fseek( $handle, $pos, SEEK_END ) !== 0 ) {
+
+ rewind( $handle );
+ $numLines = 0;
+
+ } elseif ( fgetc( $handle ) === "\n" ) {
+
+ --$numLines;
+
+ }
+
+ $block_size = ( -$pos ) % 8192;
+ if ( $block_size === 0 || $numLines === 0 ) {
+
+ $text = fread( $handle, ( $block_size === 0 ? 8192 : $block_size ) ) . $text;
+
+ }
+ }
+
+ fclose( $handle );
+
+ \OC_FileProxy::$enabled = true;
+
+ return $text;
+ }
+
+ /**
+ * @brief Check if a given path identifies an encrypted file
+ * @param $path
+ * @return boolean
+ */
+ public function isEncryptedPath( $path ) {
+
+ // Disable encryption proxy so data retrieved is in its
+ // original form
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // we only need 24 byte from the last chunk
+ $data = '';
+ $handle = $this->view->fopen( $path, 'r' );
+ if ( !fseek( $handle, -24, SEEK_END ) ) {
+ $data = fgets( $handle );
+ }
+
+ // re-enable proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return Crypt::isCatfileContent( $data );
+
+ }
+
+ /**
+ * @brief get the file size of the unencrypted file
+ * @param string $path absolute path
+ * @return bool
+ */
+ public function getFileSize( $path ) {
+
+ $result = 0;
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Reformat path for use with OC_FSV
+ $pathSplit = explode( '/', $path );
+ $pathRelative = implode( '/', array_slice( $pathSplit, 3 ) );
+
+ if ( $pathSplit[2] == 'files' && $this->view->file_exists( $path ) && $this->isEncryptedPath( $path ) ) {
+
+ // get the size from filesystem
+ $fullPath = $this->view->getLocalFile( $path );
+ $size = filesize( $fullPath );
+
+ // calculate last chunk nr
+ $lastChunkNr = floor( $size / 8192 );
+
+ // open stream
+ $stream = fopen( 'crypt://' . $pathRelative, "r" );
+
+ if ( is_resource( $stream ) ) {
+ // calculate last chunk position
+ $lastChunckPos = ( $lastChunkNr * 8192 );
+
+ // seek to end
+ fseek( $stream, $lastChunckPos );
+
+ // get the content of the last chunk
+ $lastChunkContent = fread( $stream, 8192 );
+
+ // calc the real file size with the size of the last chunk
+ $realSize = ( ( $lastChunkNr * 6126 ) + strlen( $lastChunkContent ) );
+
+ // store file size
+ $result = $realSize;
+ }
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+ }
+
+ /**
+ * @brief fix the file size of the encrypted file
+ * @param $path absolute path
+ * @return true / false if file is encrypted
+ */
+ public function fixFileSize( $path ) {
+
+ $result = false;
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $realSize = $this->getFileSize( $path );
+
+ if ( $realSize > 0 ) {
+
+ $cached = $this->view->getFileInfo( $path );
+ $cached['encrypted'] = true;
+
+ // set the size
+ $cached['unencrypted_size'] = $realSize;
+
+ // put file info
+ $this->view->putFileInfo( $path, $cached );
+
+ $result = true;
+
+ }
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return $result;
+ }
+
+ /**
+ * @brief Format a path to be relative to the /user/files/ directory
+ * @note e.g. turns '/admin/files/test.txt' into 'test.txt'
+ */
+ public function stripUserFilesPath( $path ) {
+
+ $trimmed = ltrim( $path, '/' );
+ $split = explode( '/', $trimmed );
+ $sliced = array_slice( $split, 2 );
+ $relPath = implode( '/', $sliced );
+
+ return $relPath;
+
+ }
+
+ /**
+ * @param $path
+ * @return bool
+ */
+ public function isSharedPath( $path ) {
+
+ $trimmed = ltrim( $path, '/' );
+ $split = explode( '/', $trimmed );
+
+ if ( $split[2] == "Shared" ) {
+
+ return true;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief Encrypt all files in a directory
+ * @param string $dirPath the directory whose files will be encrypted
+ * @param null $legacyPassphrase
+ * @param null $newPassphrase
+ * @return bool
+ * @note Encryption is recursive
+ */
+ public function encryptAll( $dirPath, $legacyPassphrase = null, $newPassphrase = null ) {
+
+ if ( $found = $this->findEncFiles( $dirPath ) ) {
+
+ // Disable proxy to prevent file being encrypted twice
+ \OC_FileProxy::$enabled = false;
+
+ // Encrypt unencrypted files
+ foreach ( $found['plain'] as $plainFile ) {
+
+ //relative to data/<user>/file
+ $relPath = $plainFile['path'];
+
+ //relative to /data
+ $rawPath = $this->userId . '/files/' . $plainFile['path'];
+
+ // Open plain file handle for binary reading
+ $plainHandle1 = $this->view->fopen( $rawPath, 'rb' );
+
+ // 2nd handle for moving plain file - view->rename() doesn't work, this is a workaround
+ $plainHandle2 = $this->view->fopen( $rawPath . '.plaintmp', 'wb' );
+
+ // Move plain file to a temporary location
+ stream_copy_to_stream( $plainHandle1, $plainHandle2 );
+
+ // Close access to original file
+ // $this->view->fclose( $plainHandle1 ); // not implemented in view{}
+ // Delete original plain file so we can rename enc file later
+ $this->view->unlink( $rawPath );
+
+ // Open enc file handle for binary writing, with same filename as original plain file
+ $encHandle = fopen( 'crypt://' . $relPath, 'wb' );
+
+ // Save data from plain stream to new encrypted file via enc stream
+ // NOTE: Stream{} will be invoked for handling
+ // the encryption, and should handle all keys
+ // and their generation etc. automatically
+ stream_copy_to_stream( $plainHandle2, $encHandle );
+
+ // get file size
+ $size = $this->view->filesize( $rawPath . '.plaintmp' );
+
+ // Delete temporary plain copy of file
+ $this->view->unlink( $rawPath . '.plaintmp' );
+
+ // Add the file to the cache
+ \OC\Files\Filesystem::putFileInfo( $plainFile['path'], array( 'encrypted' => true, 'size' => $size, 'unencrypted_size' => $size ) );
+ }
+
+ // Encrypt legacy encrypted files
+ if (
+ !empty( $legacyPassphrase )
+ && !empty( $newPassphrase )
+ ) {
+
+ foreach ( $found['legacy'] as $legacyFile ) {
+
+ // Fetch data from file
+ $legacyData = $this->view->file_get_contents( $legacyFile['path'] );
+
+ $sharingEnabled = \OCP\Share::isEnabled();
+
+ // if file exists try to get sharing users
+ if ( $this->view->file_exists( $legacyFile['path'] ) ) {
+ $uniqueUserIds = $this->getSharingUsersArray( $sharingEnabled, $legacyFile['path'], $this->userId );
+ } else {
+ $uniqueUserIds[] = $this->userId;
+ }
+
+ // Fetch public keys for all users who will share the file
+ $publicKeys = Keymanager::getPublicKeys( $this->view, $uniqueUserIds );
+
+ // Recrypt data, generate catfile
+ $recrypted = Crypt::legacyKeyRecryptKeyfile( $legacyData, $legacyPassphrase, $publicKeys, $newPassphrase, $legacyFile['path'] );
+
+ $rawPath = $legacyFile['path'];
+ $relPath = $this->stripUserFilesPath( $rawPath );
+
+ // Save keyfile
+ Keymanager::setFileKey( $this->view, $relPath, $this->userId, $recrypted['filekey'] );
+
+ // Save sharekeys to user folders
+ Keymanager::setShareKeys( $this->view, $relPath, $recrypted['sharekeys'] );
+
+ // Overwrite the existing file with the encrypted one
+ $this->view->file_put_contents( $rawPath, $recrypted['data'] );
+
+ $size = strlen( $recrypted['data'] );
+
+ // Add the file to the cache
+ \OC\Files\Filesystem::putFileInfo( $rawPath, array( 'encrypted' => true, 'size' => $size ), '' );
+ }
+ }
+
+ \OC_FileProxy::$enabled = true;
+
+ // If files were found, return true
+ return true;
+ } else {
+
+ // If no files were found, return false
+ return false;
+ }
+ }
+
+ /**
+ * @brief Return important encryption related paths
+ * @param string $pathName Name of the directory to return the path of
+ * @return string path
+ */
+ public function getPath( $pathName ) {
+
+ switch ( $pathName ) {
+
+ case 'publicKeyDir':
+
+ return $this->publicKeyDir;
+
+ break;
+
+ case 'encryptionDir':
+
+ return $this->encryptionDir;
+
+ break;
+
+ case 'keyfilesPath':
+
+ return $this->keyfilesPath;
+
+ break;
+
+ case 'publicKeyPath':
+
+ return $this->publicKeyPath;
+
+ break;
+
+ case 'privateKeyPath':
+
+ return $this->privateKeyPath;
+
+ break;
+ }
+
+ return false;
+
+ }
+
+ /**
+ * @brief get path of a file.
+ * @param int $fileId id of the file
+ * @return string path of the file
+ */
+ public static function fileIdToPath( $fileId ) {
+
+ $query = \OC_DB::prepare( 'SELECT `path`'
+ . ' FROM `*PREFIX*filecache`'
+ . ' WHERE `fileid` = ?' );
+
+ $result = $query->execute( array( $fileId ) );
+
+ $row = $result->fetchRow();
+
+ return substr( $row['path'], 5 );
+
+ }
+
+ /**
+ * @brief Filter an array of UIDs to return only ones ready for sharing
+ * @param array $unfilteredUsers users to be checked for sharing readiness
+ * @return multi-dimensional array. keys: ready, unready
+ */
+ public function filterShareReadyUsers( $unfilteredUsers ) {
+
+ // This array will collect the filtered IDs
+ $readyIds = $unreadyIds = array();
+
+ // Loop through users and create array of UIDs that need new keyfiles
+ foreach ( $unfilteredUsers as $user ) {
+
+ $util = new Util( $this->view, $user );
+
+ // Check that the user is encryption capable, or is the
+ // public system user 'ownCloud' (for public shares)
+ if (
+ $user == $this->publicShareKeyId
+ or $user == $this->recoveryKeyId
+ or $util->ready()
+ ) {
+
+ // Construct array of ready UIDs for Keymanager{}
+ $readyIds[] = $user;
+
+ } else {
+
+ // Construct array of unready UIDs for Keymanager{}
+ $unreadyIds[] = $user;
+
+ // Log warning; we can't do necessary setup here
+ // because we don't have the user passphrase
+ \OC_Log::write( 'Encryption library', '"' . $user . '" is not setup for encryption', \OC_Log::WARN );
+
+ }
+
+ }
+
+ return array(
+ 'ready' => $readyIds,
+ 'unready' => $unreadyIds
+ );
+
+ }
+
+ /**
+ * @brief Decrypt a keyfile without knowing how it was encrypted
+ * @param string $filePath
+ * @param string $fileOwner
+ * @param string $privateKey
+ * @note Checks whether file was encrypted with openssl_seal or
+ * openssl_encrypt, and decrypts accrdingly
+ * @note This was used when 2 types of encryption for keyfiles was used,
+ * but now we've switched to exclusively using openssl_seal()
+ */
+ public function decryptUnknownKeyfile( $filePath, $fileOwner, $privateKey ) {
+
+ // Get the encrypted keyfile
+ // NOTE: the keyfile format depends on how it was encrypted! At
+ // this stage we don't know how it was encrypted
+ $encKeyfile = Keymanager::getFileKey( $this->view, $this->userId, $filePath );
+
+ // We need to decrypt the keyfile
+ // Has the file been shared yet?
+ if (
+ $this->userId == $fileOwner
+ && !Keymanager::getShareKey( $this->view, $this->userId, $filePath ) // NOTE: we can't use isShared() here because it's a post share hook so it always returns true
+ ) {
+
+ // The file has no shareKey, and its keyfile must be
+ // decrypted conventionally
+ $plainKeyfile = Crypt::keyDecrypt( $encKeyfile, $privateKey );
+
+
+ } else {
+
+ // The file has a shareKey and must use it for decryption
+ $shareKey = Keymanager::getShareKey( $this->view, $this->userId, $filePath );
+
+ $plainKeyfile = Crypt::multiKeyDecrypt( $encKeyfile, $shareKey, $privateKey );
+
+ }
+
+ return $plainKeyfile;
+
+ }
+
+ /**
+ * @brief Encrypt keyfile to multiple users
+ * @param Session $session
+ * @param array $users list of users which should be able to access the file
+ * @param string $filePath path of the file to be shared
+ * @return bool
+ */
+ public function setSharedFileKeyfiles( Session $session, array $users, $filePath ) {
+
+ // Make sure users are capable of sharing
+ $filteredUids = $this->filterShareReadyUsers( $users );
+
+ // If we're attempting to share to unready users
+ if ( !empty( $filteredUids['unready'] ) ) {
+
+ \OC_Log::write( 'Encryption library', 'Sharing to these user(s) failed as they are unready for encryption:"' . print_r( $filteredUids['unready'], 1 ), \OC_Log::WARN );
+
+ return false;
+
+ }
+
+ // Get public keys for each user, ready for generating sharekeys
+ $userPubKeys = Keymanager::getPublicKeys( $this->view, $filteredUids['ready'] );
+
+ // Note proxy status then disable it
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Get the current users's private key for decrypting existing keyfile
+ $privateKey = $session->getPrivateKey();
+
+ $fileOwner = \OC\Files\Filesystem::getOwner( $filePath );
+
+ // Decrypt keyfile
+ $plainKeyfile = $this->decryptUnknownKeyfile( $filePath, $fileOwner, $privateKey );
+
+ // Re-enc keyfile to (additional) sharekeys
+ $multiEncKey = Crypt::multiKeyEncrypt( $plainKeyfile, $userPubKeys );
+
+ // Save the recrypted key to it's owner's keyfiles directory
+ // Save new sharekeys to all necessary user directory
+ if (
+ !Keymanager::setFileKey( $this->view, $filePath, $fileOwner, $multiEncKey['data'] )
+ || !Keymanager::setShareKeys( $this->view, $filePath, $multiEncKey['keys'] )
+ ) {
+
+ \OC_Log::write( 'Encryption library', 'Keyfiles could not be saved for users sharing ' . $filePath, \OC_Log::ERROR );
+
+ return false;
+
+ }
+
+ // Return proxy to original status
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ return true;
+ }
+
+ /**
+ * @brief Find, sanitise and format users sharing a file
+ * @note This wraps other methods into a portable bundle
+ */
+ public function getSharingUsersArray( $sharingEnabled, $filePath, $currentUserId = false ) {
+
+ // Check if key recovery is enabled
+ if (
+ \OC_Appconfig::getValue( 'files_encryption', 'recoveryAdminEnabled' )
+ && $this->recoveryEnabledForUser()
+ ) {
+
+ $recoveryEnabled = true;
+
+ } else {
+
+ $recoveryEnabled = false;
+
+ }
+
+ // Make sure that a share key is generated for the owner too
+ list( $owner, $ownerPath ) = $this->getUidAndFilename( $filePath );
+
+ $userIds = array();
+ if ( $sharingEnabled ) {
+
+ // Find out who, if anyone, is sharing the file
+ $result = \OCP\Share::getUsersSharingFile( $ownerPath, $owner, true, true, true );
+ $userIds = $result['users'];
+ if ( $result['public'] ) {
+ $userIds[] = $this->publicShareKeyId;
+ }
+
+ }
+
+ // If recovery is enabled, add the
+ // Admin UID to list of users to share to
+ if ( $recoveryEnabled ) {
+
+ // Find recoveryAdmin user ID
+ $recoveryKeyId = \OC_Appconfig::getValue( 'files_encryption', 'recoveryKeyId' );
+
+ // Add recoveryAdmin to list of users sharing
+ $userIds[] = $recoveryKeyId;
+
+ }
+
+ // add current user if given
+ if ( $currentUserId != false ) {
+
+ $userIds[] = $currentUserId;
+
+ }
+
+ // Remove duplicate UIDs
+ $uniqueUserIds = array_unique( $userIds );
+
+ return $uniqueUserIds;
+
+ }
+
+ /**
+ * @brief Set file migration status for user
+ * @param $status
+ * @return bool
+ */
+ public function setMigrationStatus( $status ) {
+
+ $sql = 'UPDATE
+ *PREFIX*encryption
+ SET
+ migration_status = ?
+ WHERE
+ uid = ?';
+
+ $args = array( $status, $this->userId );
+
+ $query = \OCP\DB::prepare( $sql );
+
+ if ( $query->execute( $args ) ) {
+
+ return true;
+
+ } else {
+
+ return false;
+
+ }
+
+ }
+
+ /**
+ * @brief Check whether pwd recovery is enabled for a given user
+ * @return bool 1 = yes, 0 = no, false = no record
+ * @note If records are not being returned, check for a hidden space
+ * at the start of the uid in db
+ */
+ public function getMigrationStatus() {
+
+ $sql = 'SELECT
+ migration_status
+ FROM
+ `*PREFIX*encryption`
+ WHERE
+ uid = ?';
+
+ $args = array( $this->userId );
+
+ $query = \OCP\DB::prepare( $sql );
+
+ $result = $query->execute( $args );
+
+ $migrationStatus = array();
+
+ $row = $result->fetchRow();
+ if($row) {
+ $migrationStatus[] = $row['migration_status'];
+ }
+
+ // If no record is found
+ if ( empty( $migrationStatus ) ) {
+
+ return false;
+
+ // If a record is found
+ } else {
+
+ return $migrationStatus[0];
+
+ }
+
+ }
+
+ /**
+ * @brief get uid of the owners of the file and the path to the file
+ * @param string $path Path of the file to check
+ * @note $shareFilePath must be relative to data/UID/files. Files
+ * relative to /Shared are also acceptable
+ * @return array
+ */
+ public function getUidAndFilename( $path ) {
+
+ $view = new \OC\Files\View( $this->userFilesDir );
+ $fileOwnerUid = $view->getOwner( $path );
+
+ // handle public access
+ if ( $this->isPublic ) {
+ $filename = $path;
+ $fileOwnerUid = $GLOBALS['fileOwner'];
+
+ return array( $fileOwnerUid, $filename );
+ } else {
+
+ // Check that UID is valid
+ if ( !\OCP\User::userExists( $fileOwnerUid ) ) {
+ throw new \Exception( 'Could not find owner (UID = "' . var_export( $fileOwnerUid, 1 ) . '") of file "' . $path . '"' );
+ }
+
+ // NOTE: Bah, this dependency should be elsewhere
+ \OC\Files\Filesystem::initMountPoints( $fileOwnerUid );
+
+ // If the file owner is the currently logged in user
+ if ( $fileOwnerUid == $this->userId ) {
+
+ // Assume the path supplied is correct
+ $filename = $path;
+
+ } else {
+
+ $info = $view->getFileInfo( $path );
+ $ownerView = new \OC\Files\View( '/' . $fileOwnerUid . '/files' );
+
+ // Fetch real file path from DB
+ $filename = $ownerView->getPath( $info['fileid'] ); // TODO: Check that this returns a path without including the user data dir
+
+ }
+
+ return array( $fileOwnerUid, $filename );
+ }
+
+
+ }
+
+ /**
+ * @brief go recursively through a dir and collect all files and sub files.
+ * @param string $dir relative to the users files folder
+ * @return array with list of files relative to the users files folder
+ */
+ public function getAllFiles( $dir ) {
+
+ $result = array();
+
+ $content = $this->view->getDirectoryContent( $this->userFilesDir . $dir );
+
+ // handling for re shared folders
+ $path_split = explode( '/', $dir );
+
+ foreach ( $content as $c ) {
+
+ $sharedPart = $path_split[sizeof( $path_split ) - 1];
+ $targetPathSplit = array_reverse( explode( '/', $c['path'] ) );
+
+ $path = '';
+
+ // rebuild path
+ foreach ( $targetPathSplit as $pathPart ) {
+
+ if ( $pathPart !== $sharedPart ) {
+
+ $path = '/' . $pathPart . $path;
+
+ } else {
+
+ break;
+
+ }
+
+ }
+
+ $path = $dir . $path;
+
+ if ( $c['type'] === "dir" ) {
+
+ $result = array_merge( $result, $this->getAllFiles( $path ) );
+
+ } else {
+
+ $result[] = $path;
+
+ }
+ }
+
+ return $result;
+
+ }
+
+ /**
+ * @brief get shares parent.
+ * @param int $id of the current share
+ * @return array of the parent
+ */
+ public static function getShareParent( $id ) {
+
+ $query = \OC_DB::prepare( 'SELECT `file_target`, `item_type`'
+ . ' FROM `*PREFIX*share`'
+ . ' WHERE `id` = ?' );
+
+ $result = $query->execute( array( $id ) );
+
+ $row = $result->fetchRow();
+
+ return $row;
+
+ }
+
+ /**
+ * @brief get shares parent.
+ * @param int $id of the current share
+ * @return array of the parent
+ */
+ public static function getParentFromShare( $id ) {
+
+ $query = \OC_DB::prepare( 'SELECT `parent`'
+ . ' FROM `*PREFIX*share`'
+ . ' WHERE `id` = ?' );
+
+ $result = $query->execute( array( $id ) );
+
+ $row = $result->fetchRow();
+
+ return $row;
+
+ }
+
+ /**
+ * @brief get owner of the shared files.
+ * @param $id
+ * @internal param int $Id of a share
+ * @return string owner
+ */
+ public function getOwnerFromSharedFile( $id ) {
+
+ $query = \OC_DB::prepare( 'SELECT `parent`, `uid_owner` FROM `*PREFIX*share` WHERE `id` = ?', 1 );
+ $source = $query->execute( array( $id ) )->fetchRow();
+
+ $fileOwner = false;
+
+ if ( isset( $source['parent'] ) ) {
+
+ $parent = $source['parent'];
+
+ while ( isset( $parent ) ) {
+
+ $query = \OC_DB::prepare( 'SELECT `parent`, `uid_owner` FROM `*PREFIX*share` WHERE `id` = ?', 1 );
+ $item = $query->execute( array( $parent ) )->fetchRow();
+
+ if ( isset( $item['parent'] ) ) {
+
+ $parent = $item['parent'];
+
+ } else {
+
+ $fileOwner = $item['uid_owner'];
+
+ break;
+
+ }
+ }
+
+ } else {
+
+ $fileOwner = $source['uid_owner'];
+
+ }
+
+ return $fileOwner;
+
+ }
+
+ /**
+ * @return string
+ */
+ public function getUserId() {
+ return $this->userId;
+ }
+
+ /**
+ * @return string
+ */
+ public function getUserFilesDir() {
+ return $this->userFilesDir;
+ }
+
+ /**
+ * @param $password
+ * @return bool
+ */
+ public function checkRecoveryPassword( $password ) {
+
+ $pathKey = '/owncloud_private_key/' . $this->recoveryKeyId . ".private.key";
+ $pathControlData = '/control-file/controlfile.enc';
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $recoveryKey = $this->view->file_get_contents( $pathKey );
+
+ $decryptedRecoveryKey = Crypt::symmetricDecryptFileContent( $recoveryKey, $password );
+
+ $controlData = $this->view->file_get_contents( $pathControlData );
+ $decryptedControlData = Crypt::keyDecrypt( $controlData, $decryptedRecoveryKey );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ if ( $decryptedControlData === 'ownCloud' ) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * @return string
+ */
+ public function getRecoveryKeyId() {
+ return $this->recoveryKeyId;
+ }
+
+ /**
+ * @brief add recovery key to all encrypted files
+ */
+ public function addRecoveryKeys( $path = '/' ) {
+ $dirContent = $this->view->getDirectoryContent( $this->keyfilesPath . $path );
+ foreach ( $dirContent as $item ) {
+ // get relative path from files_encryption/keyfiles/
+ $filePath = substr( $item['path'], strlen('files_encryption/keyfiles') );
+ if ( $item['type'] == 'dir' ) {
+ $this->addRecoveryKeys( $filePath . '/' );
+ } else {
+ $session = new Session( new \OC_FilesystemView( '/' ) );
+ $sharingEnabled = \OCP\Share::isEnabled();
+ $file = substr( $filePath, 0, -4 );
+ $usersSharing = $this->getSharingUsersArray( $sharingEnabled, $file );
+ $this->setSharedFileKeyfiles( $session, $usersSharing, $file );
+ }
+ }
+ }
+
+ /**
+ * @brief remove recovery key to all encrypted files
+ */
+ public function removeRecoveryKeys( $path = '/' ) {
+ $dirContent = $this->view->getDirectoryContent( $this->keyfilesPath . $path );
+ foreach ( $dirContent as $item ) {
+ // get relative path from files_encryption/keyfiles
+ $filePath = substr( $item['path'], strlen('files_encryption/keyfiles') );
+ if ( $item['type'] == 'dir' ) {
+ $this->removeRecoveryKeys( $filePath . '/' );
+ } else {
+ $file = substr( $filePath, 0, -4 );
+ $this->view->unlink( $this->shareKeysPath . '/' . $file . '.' . $this->recoveryKeyId . '.shareKey' );
+ }
+ }
+ }
+
+ /**
+ * @brief decrypt given file with recovery key and encrypt it again to the owner and his new key
+ * @param string $file
+ * @param string $privateKey recovery key to decrypt the file
+ */
+ private function recoverFile( $file, $privateKey ) {
+
+ $sharingEnabled = \OCP\Share::isEnabled();
+
+ // Find out who, if anyone, is sharing the file
+ if ( $sharingEnabled ) {
+ $result = \OCP\Share::getUsersSharingFile( $file, $this->userId, true, true, true );
+ $userIds = $result['users'];
+ $userIds[] = $this->recoveryKeyId;
+ if ( $result['public'] ) {
+ $userIds[] = $this->publicShareKeyId;
+ }
+ } else {
+ $userIds = array( $this->userId, $this->recoveryKeyId );
+ }
+ $filteredUids = $this->filterShareReadyUsers( $userIds );
+
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ //decrypt file key
+ $encKeyfile = $this->view->file_get_contents( $this->keyfilesPath . $file . ".key" );
+ $shareKey = $this->view->file_get_contents( $this->shareKeysPath . $file . "." . $this->recoveryKeyId . ".shareKey" );
+ $plainKeyfile = Crypt::multiKeyDecrypt( $encKeyfile, $shareKey, $privateKey );
+ // encrypt file key again to all users, this time with the new public key for the recovered use
+ $userPubKeys = Keymanager::getPublicKeys( $this->view, $filteredUids['ready'] );
+ $multiEncKey = Crypt::multiKeyEncrypt( $plainKeyfile, $userPubKeys );
+
+ // write new keys to filesystem TDOO!
+ $this->view->file_put_contents( $this->keyfilesPath . $file . '.key', $multiEncKey['data'] );
+ foreach ( $multiEncKey['keys'] as $userId => $shareKey ) {
+ $shareKeyPath = $this->shareKeysPath . $file . '.' . $userId . '.shareKey';
+ $this->view->file_put_contents( $shareKeyPath, $shareKey );
+ }
+
+ // Return proxy to original status
+ \OC_FileProxy::$enabled = $proxyStatus;
+ }
+
+ /**
+ * @brief collect all files and recover them one by one
+ * @param string $path to look for files keys
+ * @param string $privateKey private recovery key which is used to decrypt the files
+ */
+ private function recoverAllFiles( $path, $privateKey ) {
+ $dirContent = $this->view->getDirectoryContent( $this->keyfilesPath . $path );
+ foreach ( $dirContent as $item ) {
+ $filePath = substr( $item['path'], 25 );
+ if ( $item['type'] == 'dir' ) {
+ $this->recoverAllFiles( $filePath . '/', $privateKey );
+ } else {
+ $file = substr( $filePath, 0, -4 );
+ $this->recoverFile( $file, $privateKey );
+ }
+ }
+ }
+
+ /**
+ * @brief recover users files in case of password lost
+ * @param string $recoveryPassword
+ */
+ public function recoverUsersFiles( $recoveryPassword ) {
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $encryptedKey = $this->view->file_get_contents( '/owncloud_private_key/' . $this->recoveryKeyId . '.private.key' );
+ $privateKey = Crypt::symmetricDecryptFileContent( $encryptedKey, $recoveryPassword );
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ $this->recoverAllFiles( '/', $privateKey );
+ }
+
+}
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2011 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+\OC_Util::checkAdminUser();
+
+$tmpl = new OCP\Template( 'files_encryption', 'settings-admin' );
+
+// Check if an adminRecovery account is enabled for recovering files after lost pwd
+$view = new OC_FilesystemView( '' );
+
+$recoveryAdminEnabled = OC_Appconfig::getValue( 'files_encryption', 'recoveryAdminEnabled' );
+
+$tmpl->assign( 'recoveryEnabled', $recoveryAdminEnabled );
+
+\OCP\Util::addscript( 'files_encryption', 'settings-admin' );
+\OCP\Util::addscript( 'core', 'multiselect' );
+
+return $tmpl->fetchPage();
--- /dev/null
+<?php\r
+/**\r
+ * Copyright (c) 2013 Sam Tuke <samtuke@owncloud.com>\r
+ * This file is licensed under the Affero General Public License version 3 or\r
+ * later.\r
+ * See the COPYING-README file.\r
+ */\r
+\r
+// Add CSS stylesheet\r
+\OC_Util::addStyle( 'files_encryption', 'settings-personal' );\r
+ \r
+$tmpl = new OCP\Template( 'files_encryption', 'settings-personal');\r
+\r
+$user = \OCP\USER::getUser();\r
+$view = new \OC_FilesystemView( '/' );\r
+$util = new \OCA\Encryption\Util( $view, $user );\r
+\r
+$recoveryAdminEnabled = OC_Appconfig::getValue( 'files_encryption', 'recoveryAdminEnabled' );\r
+$recoveryEnabledForUser = $util->recoveryEnabledForUser();\r
+\r
+\OCP\Util::addscript( 'files_encryption', 'settings-personal' );\r
+\OCP\Util::addScript( 'settings', 'personal' );\r
+\r
+$tmpl->assign( 'recoveryEnabled', $recoveryAdminEnabled );\r
+$tmpl->assign( 'recoveryEnabledForUser', $recoveryEnabledForUser );\r
+\r
+return $tmpl->fetchPage();\r
+\r
--- /dev/null
+<form id="encryption">
+ <fieldset class="personalblock">
+
+ <p>
+ <strong><?php p($l->t( 'Encryption' )); ?></strong>
+ <br />
+ </p>
+ <p>
+ <?php p($l->t( "Enable encryption passwords recovery key (allow sharing to recovery key):" )); ?>
+ <br />
+ <br />
+ <input type="password" name="recoveryPassword" id="recoveryPassword" />
+ <label for="recoveryPassword"><?php p($l->t( "Recovery account password" )); ?></label>
+ <br />
+ <input
+ type='radio'
+ name='adminEnableRecovery'
+ value='1'
+ <?php echo ( $_["recoveryEnabled"] == 1 ? 'checked="checked"' : 'disabled' ); ?> />
+ <?php p($l->t( "Enabled" )); ?>
+ <br />
+
+ <input
+ type='radio'
+ name='adminEnableRecovery'
+ value='0'
+ <?php echo ( $_["recoveryEnabled"] == 0 ? 'checked="checked"' : 'disabled' ); ?> />
+ <?php p($l->t( "Disabled" )); ?>
+ </p>
+ <br /><br />
+ <p>
+ <strong><?php p($l->t( "Change encryption passwords recovery key:" )); ?></strong>
+ <br /><br />
+ <input
+ type="password"
+ name="changeRecoveryPassword"
+ id="oldRecoveryPassword"
+ <?php echo ( $_["recoveryEnabled"] == 0 ? 'disabled' : '' ); ?> />
+ <label for="oldRecoveryPassword"><?php p($l->t( "Old Recovery account password" )); ?></label>
+ <br />
+ <input
+ type="password"
+ name="changeRecoveryPassword"
+ id="newRecoveryPassword"
+ <?php echo ( $_["recoveryEnabled"] == 0 ? 'disabled' : '' ); ?> />
+ <label for="newRecoveryPassword"><?php p($l->t( "New Recovery account password" )); ?></label>
+ <br />
+ <button
+ type="button"
+ name="submitChangeRecoveryKey"
+ disabled><?php p($l->t( "Change Password" )); ?>
+ </button>
+ <span class="msg"></span>
+ </p>
+ </fieldset>
+</form>
--- /dev/null
+<form id="encryption">\r
+ <fieldset class="personalblock">\r
+ <legend>\r
+ <?php p( $l->t( 'Encryption' ) ); ?>\r
+ </legend>\r
+ \r
+ <?php if ( $_["recoveryEnabled"] ): ?>\r
+ <p>\r
+ <label for="userEnableRecovery"><?php p( $l->t( "Enable password recovery by sharing all files with your administrator:" ) ); ?></label>\r
+ <br />\r
+ <em><?php p( $l->t( "Enabling this option will allow you to reobtain access to your encrypted files if your password is lost" ) ); ?></em>\r
+ <br />\r
+ <input \r
+ type='radio'\r
+ name='userEnableRecovery'\r
+ value='1'\r
+ <?php echo ( $_["recoveryEnabledForUser"] == 1 ? 'checked="checked"' : '' ); ?> />\r
+ <?php p( $l->t( "Enabled" ) ); ?>\r
+ <br />\r
+ \r
+ <input \r
+ type='radio'\r
+ name='userEnableRecovery'\r
+ value='0'\r
+ <?php echo ( $_["recoveryEnabledForUser"] == 0 ? 'checked="checked"' : '' ); ?> />\r
+ <?php p( $l->t( "Disabled" ) ); ?>\r
+ <div id="recoveryEnabledSuccess"><?php p( $l->t( 'File recovery settings updated' ) ); ?></div>\r
+ <div id="recoveryEnabledError"><?php p( $l->t( 'Could not update file recovery' ) ); ?></div>\r
+ </p>\r
+ <?php endif; ?>\r
+ <br />\r
+ </fieldset>\r
+</form>\r
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>, and
+ * Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+require_once realpath(dirname(__FILE__) . '/../3rdparty/Crypt_Blowfish/Blowfish.php');
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../lib/helper.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Crypt
+ */
+class Test_Encryption_Crypt extends \PHPUnit_Framework_TestCase
+{
+
+ public $userId;
+ public $pass;
+ public $stateFilesTrashbin;
+ public $dataLong;
+ public $dataUrl;
+ public $dataShort;
+ /**
+ * @var OC_FilesystemView
+ */
+ public $view;
+ public $legacyEncryptedData;
+ public $genPrivateKey;
+ public $genPublicKey;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::clearBackends();
+ \OC_User::useBackend('database');
+
+ // set content for encrypting / decrypting in tests
+ $this->dataLong = file_get_contents(realpath(dirname(__FILE__) . '/../lib/crypt.php'));
+ $this->dataShort = 'hats';
+ $this->dataUrl = realpath(dirname(__FILE__) . '/../lib/crypt.php');
+ $this->legacyData = realpath(dirname(__FILE__) . '/legacy-text.txt');
+ $this->legacyEncryptedData = realpath(dirname(__FILE__) . '/legacy-encrypted-text.txt');
+ $this->legacyEncryptedDataKey = realpath(dirname(__FILE__) . '/encryption.key');
+ $this->randomKey = Encryption\Crypt::generateKey();
+
+ $keypair = Encryption\Crypt::createKeypair();
+ $this->genPublicKey = $keypair['publicKey'];
+ $this->genPrivateKey = $keypair['privateKey'];
+
+ $this->view = new \OC_FilesystemView('/');
+
+ \OC_User::setUserId('admin');
+ $this->userId = 'admin';
+ $this->pass = 'admin';
+
+ $userHome = \OC_User::getHome($this->userId);
+ $this->dataDir = str_replace('/' . $this->userId, '', $userHome);
+
+ // Filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ // Filesystem related hooks
+ \OCA\Encryption\Helper::registerUserHooks();
+
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ // remember files_trashbin state
+ $this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
+
+ // we don't want to tests with app files_trashbin enabled
+ \OC_App::disable('files_trashbin');
+
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($this->userId);
+ \OC_User::setUserId($this->userId);
+
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ OCA\Encryption\Hooks::login($params);
+
+ }
+
+ function tearDown()
+ {
+ \OC_FileProxy::clearProxies();
+
+ // reset app files_trashbin
+ if ($this->stateFilesTrashbin) {
+ OC_App::enable('files_trashbin');
+ } else {
+ OC_App::disable('files_trashbin');
+ }
+ }
+
+ function testGenerateKey()
+ {
+
+ # TODO: use more accurate (larger) string length for test confirmation
+
+ $key = Encryption\Crypt::generateKey();
+
+ $this->assertTrue(strlen($key) > 16);
+
+ }
+
+ /**
+ * @return String
+ */
+ function testGenerateIv()
+ {
+
+ $iv = Encryption\Crypt::generateIv();
+
+ $this->assertEquals(16, strlen($iv));
+
+ return $iv;
+
+ }
+
+ /**
+ * @depends testGenerateIv
+ */
+ function testConcatIv($iv)
+ {
+
+ $catFile = Encryption\Crypt::concatIv($this->dataLong, $iv);
+
+ // Fetch encryption metadata from end of file
+ $meta = substr($catFile, -22);
+
+ $identifier = substr($meta, 0, 6);
+
+ // Fetch IV from end of file
+ $foundIv = substr($meta, 6);
+
+ $this->assertEquals('00iv00', $identifier);
+
+ $this->assertEquals($iv, $foundIv);
+
+ // Remove IV and IV identifier text to expose encrypted content
+ $data = substr($catFile, 0, -22);
+
+ $this->assertEquals($this->dataLong, $data);
+
+ return array(
+ 'iv' => $iv
+ , 'catfile' => $catFile
+ );
+
+ }
+
+ /**
+ * @depends testConcatIv
+ */
+ function testSplitIv($testConcatIv)
+ {
+
+ // Split catfile into components
+ $splitCatfile = Encryption\Crypt::splitIv($testConcatIv['catfile']);
+
+ // Check that original IV and split IV match
+ $this->assertEquals($testConcatIv['iv'], $splitCatfile['iv']);
+
+ // Check that original data and split data match
+ $this->assertEquals($this->dataLong, $splitCatfile['encrypted']);
+
+ }
+
+ /**
+ * @return string padded
+ */
+ function testAddPadding()
+ {
+
+ $padded = Encryption\Crypt::addPadding($this->dataLong);
+
+ $padding = substr($padded, -2);
+
+ $this->assertEquals('xx', $padding);
+
+ return $padded;
+
+ }
+
+ /**
+ * @depends testAddPadding
+ */
+ function testRemovePadding($padded)
+ {
+
+ $noPadding = Encryption\Crypt::RemovePadding($padded);
+
+ $this->assertEquals($this->dataLong, $noPadding);
+
+ }
+
+ function testEncrypt()
+ {
+
+ $random = openssl_random_pseudo_bytes(13);
+
+ $iv = substr(base64_encode($random), 0, -4); // i.e. E5IG033j+mRNKrht
+
+ $crypted = Encryption\Crypt::encrypt($this->dataUrl, $iv, 'hat');
+
+ $this->assertNotEquals($this->dataUrl, $crypted);
+
+ }
+
+ function testDecrypt()
+ {
+
+ $random = openssl_random_pseudo_bytes(13);
+
+ $iv = substr(base64_encode($random), 0, -4); // i.e. E5IG033j+mRNKrht
+
+ $crypted = Encryption\Crypt::encrypt($this->dataUrl, $iv, 'hat');
+
+ $decrypt = Encryption\Crypt::decrypt($crypted, $iv, 'hat');
+
+ $this->assertEquals($this->dataUrl, $decrypt);
+
+ }
+
+ function testSymmetricEncryptFileContent()
+ {
+
+ # TODO: search in keyfile for actual content as IV will ensure this test always passes
+
+ $crypted = Encryption\Crypt::symmetricEncryptFileContent($this->dataShort, 'hat');
+
+ $this->assertNotEquals($this->dataShort, $crypted);
+
+
+ $decrypt = Encryption\Crypt::symmetricDecryptFileContent($crypted, 'hat');
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ }
+
+ function testSymmetricStreamEncryptShortFileContent()
+ {
+
+ $filename = 'tmp-' . time() . '.test';
+
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Get file contents without using any wrapper to get it's actual contents on disk
+ $retreivedCryptedFile = $this->view->file_get_contents($this->userId . '/files/' . $filename);
+
+ // Re-enable proxy - our work is done
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // Check that the file was encrypted before being written to disk
+ $this->assertNotEquals($this->dataShort, $retreivedCryptedFile);
+
+ // Get the encrypted keyfile
+ $encKeyfile = Encryption\Keymanager::getFileKey($this->view, $this->userId, $filename);
+
+ // Attempt to fetch the user's shareKey
+ $shareKey = Encryption\Keymanager::getShareKey($this->view, $this->userId, $filename);
+
+ // get session
+ $session = new Encryption\Session($this->view);
+
+ // get private key
+ $privateKey = $session->getPrivateKey($this->userId);
+
+ // Decrypt keyfile with shareKey
+ $plainKeyfile = Encryption\Crypt::multiKeyDecrypt($encKeyfile, $shareKey, $privateKey);
+
+ // Manually decrypt
+ $manualDecrypt = Encryption\Crypt::symmetricDecryptFileContent($retreivedCryptedFile, $plainKeyfile);
+
+ // Check that decrypted data matches
+ $this->assertEquals($this->dataShort, $manualDecrypt);
+
+ // Teardown
+ $this->view->unlink($this->userId . '/files/' . $filename);
+
+ Encryption\Keymanager::deleteFileKey($this->view, $this->userId, $filename);
+ }
+
+ /**
+ * @brief Test that data that is written by the crypto stream wrapper
+ * @note Encrypted data is manually prepared and decrypted here to avoid dependency on success of stream_read
+ * @note If this test fails with truncate content, check that enough array slices are being rejoined to form $e, as the crypt.php file may have gotten longer and broken the manual
+ * reassembly of its data
+ */
+ function testSymmetricStreamEncryptLongFileContent()
+ {
+
+ // Generate a a random filename
+ $filename = 'tmp-' . time() . '.test';
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataLong . $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // Get file contents without using any wrapper to get it's actual contents on disk
+ $retreivedCryptedFile = $this->view->file_get_contents($this->userId . '/files/' . $filename);
+
+ // Re-enable proxy - our work is done
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+
+ // Check that the file was encrypted before being written to disk
+ $this->assertNotEquals($this->dataLong . $this->dataLong, $retreivedCryptedFile);
+
+ // Manuallly split saved file into separate IVs and encrypted chunks
+ $r = preg_split('/(00iv00.{16,18})/', $retreivedCryptedFile, NULL, PREG_SPLIT_DELIM_CAPTURE);
+
+ //print_r($r);
+
+ // Join IVs and their respective data chunks
+ $e = array($r[0] . $r[1], $r[2] . $r[3], $r[4] . $r[5], $r[6] . $r[7], $r[8] . $r[9], $r[10] . $r[11]); //.$r[11], $r[12].$r[13], $r[14] );
+
+ //print_r($e);
+
+ // Get the encrypted keyfile
+ $encKeyfile = Encryption\Keymanager::getFileKey($this->view, $this->userId, $filename);
+
+ // Attempt to fetch the user's shareKey
+ $shareKey = Encryption\Keymanager::getShareKey($this->view, $this->userId, $filename);
+
+ // get session
+ $session = new Encryption\Session($this->view);
+
+ // get private key
+ $privateKey = $session->getPrivateKey($this->userId);
+
+ // Decrypt keyfile with shareKey
+ $plainKeyfile = Encryption\Crypt::multiKeyDecrypt($encKeyfile, $shareKey, $privateKey);
+
+ // Set var for reassembling decrypted content
+ $decrypt = '';
+
+ // Manually decrypt chunk
+ foreach ($e as $chunk) {
+
+ $chunkDecrypt = Encryption\Crypt::symmetricDecryptFileContent($chunk, $plainKeyfile);
+
+ // Assemble decrypted chunks
+ $decrypt .= $chunkDecrypt;
+
+ }
+
+ $this->assertEquals($this->dataLong . $this->dataLong, $decrypt);
+
+ // Teardown
+
+ $this->view->unlink($this->userId . '/files/' . $filename);
+
+ Encryption\Keymanager::deleteFileKey($this->view, $this->userId, $filename);
+
+ }
+
+ /**
+ * @brief Test that data that is read by the crypto stream wrapper
+ */
+ function testSymmetricStreamDecryptShortFileContent()
+ {
+
+ $filename = 'tmp-' . time();
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $this->assertTrue(Encryption\Crypt::isEncryptedMeta($filename));
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // Get file decrypted contents
+ $decrypt = file_get_contents('crypt://' . $filename);
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ // tear down
+ $this->view->unlink($this->userId . '/files/' . $filename);
+ }
+
+ function testSymmetricStreamDecryptLongFileContent()
+ {
+
+ $filename = 'tmp-' . time();
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = file_get_contents('crypt://' . $filename);
+
+ $this->assertEquals($this->dataLong, $decrypt);
+
+ // tear down
+ $this->view->unlink($this->userId . '/files/' . $filename);
+ }
+
+ function testSymmetricEncryptFileContentKeyfile()
+ {
+
+ # TODO: search in keyfile for actual content as IV will ensure this test always passes
+
+ $crypted = Encryption\Crypt::symmetricEncryptFileContentKeyfile($this->dataUrl);
+
+ $this->assertNotEquals($this->dataUrl, $crypted['encrypted']);
+
+
+ $decrypt = Encryption\Crypt::symmetricDecryptFileContent($crypted['encrypted'], $crypted['key']);
+
+ $this->assertEquals($this->dataUrl, $decrypt);
+
+ }
+
+ function testIsEncryptedContent()
+ {
+
+ $this->assertFalse(Encryption\Crypt::isCatfileContent($this->dataUrl));
+
+ $this->assertFalse(Encryption\Crypt::isCatfileContent($this->legacyEncryptedData));
+
+ $keyfileContent = Encryption\Crypt::symmetricEncryptFileContent($this->dataUrl, 'hat');
+
+ $this->assertTrue(Encryption\Crypt::isCatfileContent($keyfileContent));
+
+ }
+
+ function testMultiKeyEncrypt()
+ {
+
+ # TODO: search in keyfile for actual content as IV will ensure this test always passes
+
+ $pair1 = Encryption\Crypt::createKeypair();
+
+ $this->assertEquals(2, count($pair1));
+
+ $this->assertTrue(strlen($pair1['publicKey']) > 1);
+
+ $this->assertTrue(strlen($pair1['privateKey']) > 1);
+
+
+ $crypted = Encryption\Crypt::multiKeyEncrypt($this->dataShort, array($pair1['publicKey']));
+
+ $this->assertNotEquals($this->dataShort, $crypted['data']);
+
+
+ $decrypt = Encryption\Crypt::multiKeyDecrypt($crypted['data'], $crypted['keys'][0], $pair1['privateKey']);
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ }
+
+ function testKeyEncrypt()
+ {
+
+ // Generate keypair
+ $pair1 = Encryption\Crypt::createKeypair();
+
+ // Encrypt data
+ $crypted = Encryption\Crypt::keyEncrypt($this->dataUrl, $pair1['publicKey']);
+
+ $this->assertNotEquals($this->dataUrl, $crypted);
+
+ // Decrypt data
+ $decrypt = Encryption\Crypt::keyDecrypt($crypted, $pair1['privateKey']);
+
+ $this->assertEquals($this->dataUrl, $decrypt);
+
+ }
+
+ /**
+ * @brief test encryption using legacy blowfish method
+ */
+ function testLegacyEncryptShort()
+ {
+
+ $crypted = Encryption\Crypt::legacyEncrypt($this->dataShort, $this->pass);
+
+ $this->assertNotEquals($this->dataShort, $crypted);
+
+ # TODO: search inencrypted text for actual content to ensure it
+ # genuine transformation
+
+ return $crypted;
+
+ }
+
+ /**
+ * @brief test decryption using legacy blowfish method
+ * @depends testLegacyEncryptShort
+ */
+ function testLegacyDecryptShort($crypted)
+ {
+
+ $decrypted = Encryption\Crypt::legacyDecrypt($crypted, $this->pass);
+
+ $this->assertEquals($this->dataShort, $decrypted);
+
+ }
+
+ /**
+ * @brief test encryption using legacy blowfish method
+ */
+ function testLegacyEncryptLong()
+ {
+
+ $crypted = Encryption\Crypt::legacyEncrypt($this->dataLong, $this->pass);
+
+ $this->assertNotEquals($this->dataLong, $crypted);
+
+ # TODO: search inencrypted text for actual content to ensure it
+ # genuine transformation
+
+ return $crypted;
+
+ }
+
+ /**
+ * @brief test decryption using legacy blowfish method
+ * @depends testLegacyEncryptLong
+ */
+ function testLegacyDecryptLong($crypted)
+ {
+
+ $decrypted = Encryption\Crypt::legacyDecrypt($crypted, $this->pass);
+
+ $this->assertEquals($this->dataLong, $decrypted);
+
+ $this->assertFalse(Encryption\Crypt::getBlowfish(''));
+ }
+
+ /**
+ * @brief test generation of legacy encryption key
+ * @depends testLegacyDecryptShort
+ */
+ function testLegacyCreateKey()
+ {
+
+ // Create encrypted key
+ $encKey = Encryption\Crypt::legacyCreateKey($this->pass);
+
+ // Decrypt key
+ $key = Encryption\Crypt::legacyDecrypt($encKey, $this->pass);
+
+ $this->assertTrue(is_numeric($key));
+
+ // Check that key is correct length
+ $this->assertEquals(20, strlen($key));
+
+ }
+
+ /**
+ * @brief test decryption using legacy blowfish method
+ * @depends testLegacyEncryptLong
+ */
+ function testLegacyKeyRecryptKeyfileEncrypt($crypted)
+ {
+
+ $recrypted = Encryption\Crypt::LegacyKeyRecryptKeyfile($crypted, $this->pass, array($this->genPublicKey), $this->pass, '');
+
+ $this->assertNotEquals($this->dataLong, $recrypted['data']);
+
+ return $recrypted;
+
+ # TODO: search inencrypted text for actual content to ensure it
+ # genuine transformation
+
+ }
+
+ function testRenameFile()
+ {
+
+ $filename = 'tmp-' . time();
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = file_get_contents('crypt://' . $filename);
+
+ $this->assertEquals($this->dataLong, $decrypt);
+
+ $newFilename = 'tmp-new-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+ $view->rename($filename, $newFilename);
+
+ // Get file decrypted contents
+ $newDecrypt = file_get_contents('crypt://' . $newFilename);
+
+ $this->assertEquals($this->dataLong, $newDecrypt);
+
+ // tear down
+ $view->unlink($newFilename);
+ }
+
+ function testMoveFileIntoFolder()
+ {
+
+ $filename = 'tmp-' . time();
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = file_get_contents('crypt://' . $filename);
+
+ $this->assertEquals($this->dataLong, $decrypt);
+
+ $newFolder = '/newfolder' . time();
+ $newFilename = 'tmp-new-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+ $view->mkdir($newFolder);
+ $view->rename($filename, $newFolder . '/' . $newFilename);
+
+ // Get file decrypted contents
+ $newDecrypt = file_get_contents('crypt://' . $newFolder . '/' . $newFilename);
+
+ $this->assertEquals($this->dataLong, $newDecrypt);
+
+ // tear down
+ $view->unlink($newFolder);
+ }
+
+ function testMoveFolder()
+ {
+
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ $filename = '/tmp-' . time();
+ $folder = '/folder' . time();
+
+ $view->mkdir($folder);
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $folder . $filename, $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = file_get_contents('crypt://' . $folder . $filename);
+
+ $this->assertEquals($this->dataLong, $decrypt);
+
+ $newFolder = '/newfolder/subfolder' . time();
+ $view->mkdir('/newfolder');
+
+ $view->rename($folder, $newFolder);
+
+ // Get file decrypted contents
+ $newDecrypt = file_get_contents('crypt://' . $newFolder . $filename);
+
+ $this->assertEquals($this->dataLong, $newDecrypt);
+
+ // tear down
+ $view->unlink($newFolder);
+ }
+
+ function testChangePassphrase()
+ {
+ $filename = 'tmp-' . time();
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFile = file_put_contents('crypt://' . $filename, $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = file_get_contents('crypt://' . $filename);
+
+ $this->assertEquals($this->dataLong, $decrypt);
+
+ // change password
+ \OC_User::setPassword($this->userId, 'test', null);
+
+ // relogin
+ $params['uid'] = $this->userId;
+ $params['password'] = 'test';
+ OCA\Encryption\Hooks::login($params);
+
+ // Get file decrypted contents
+ $newDecrypt = file_get_contents('crypt://' . $filename);
+
+ $this->assertEquals($this->dataLong, $newDecrypt);
+
+ // tear down
+ // change password back
+ \OC_User::setPassword($this->userId, $this->pass);
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+ $view->unlink($filename);
+ }
+
+ function testViewFilePutAndGetContents()
+ {
+
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = $view->file_get_contents($filename);
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ // Save long data as encrypted file using stream wrapper
+ $cryptedFileLong = $view->file_put_contents($filename, $this->dataLong);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFileLong));
+
+ // Get file decrypted contents
+ $decryptLong = $view->file_get_contents($filename);
+
+ $this->assertEquals($this->dataLong, $decryptLong);
+
+ // tear down
+ $view->unlink($filename);
+ }
+
+ function testTouchExistingFile()
+ {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ $view->touch($filename);
+
+ // Get file decrypted contents
+ $decrypt = $view->file_get_contents($filename);
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ // tear down
+ $view->unlink($filename);
+ }
+
+ function testTouchFile()
+ {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ $view->touch($filename);
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // Get file decrypted contents
+ $decrypt = $view->file_get_contents($filename);
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ // tear down
+ $view->unlink($filename);
+ }
+
+ function testFopenFile()
+ {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ $handle = $view->fopen($filename, 'r');
+
+ // Get file decrypted contents
+ $decrypt = fgets($handle);
+
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ // tear down
+ $view->unlink($filename);
+ }
+}
--- /dev/null
+ÍÜä°E_cP\ 1ï\1e6HþV»sßà\e\8dÊ\ 6\9e
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../lib/helper.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Keymanager
+ */
+class Test_Encryption_Keymanager extends \PHPUnit_Framework_TestCase
+{
+
+ public $userId;
+ public $pass;
+ public $stateFilesTrashbin;
+ /**
+ * @var OC_FilesystemView
+ */
+ public $view;
+ public $randomKey;
+ public $dataShort;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::clearBackends();
+ \OC_User::useBackend('database');
+
+ \OC_FileProxy::$enabled = false;
+
+ // set content for encrypting / decrypting in tests
+ $this->dataLong = file_get_contents(realpath(dirname(__FILE__) . '/../lib/crypt.php'));
+ $this->dataShort = 'hats';
+ $this->dataUrl = realpath(dirname(__FILE__) . '/../lib/crypt.php');
+ $this->legacyData = realpath(dirname(__FILE__) . '/legacy-text.txt');
+ $this->legacyEncryptedData = realpath(dirname(__FILE__) . '/legacy-encrypted-text.txt');
+ $this->randomKey = Encryption\Crypt::generateKey();
+
+ $keypair = Encryption\Crypt::createKeypair();
+ $this->genPublicKey = $keypair['publicKey'];
+ $this->genPrivateKey = $keypair['privateKey'];
+
+ $this->view = new \OC_FilesystemView('/');
+
+ \OC_User::setUserId('admin');
+ $this->userId = 'admin';
+ $this->pass = 'admin';
+
+ $userHome = \OC_User::getHome($this->userId);
+ $this->dataDir = str_replace('/' . $this->userId, '', $userHome);
+
+ // Filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ // remember files_trashbin state
+ $this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
+
+ // we don't want to tests with app files_trashbin enabled
+ \OC_App::disable('files_trashbin');
+
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($this->userId);
+ \OC_User::setUserId($this->userId);
+
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ OCA\Encryption\Hooks::login($params);
+ }
+
+ function tearDown()
+ {
+
+ \OC_FileProxy::$enabled = true;
+ \OC_FileProxy::clearProxies();
+
+ // reset app files_trashbin
+ if ($this->stateFilesTrashbin) {
+ OC_App::enable('files_trashbin');
+ } else {
+ OC_App::disable('files_trashbin');
+ }
+ }
+
+ function testGetPrivateKey()
+ {
+
+ $key = Encryption\Keymanager::getPrivateKey($this->view, $this->userId);
+
+ $privateKey = Encryption\Crypt::symmetricDecryptFileContent($key, $this->pass);
+
+ $res = openssl_pkey_get_private($privateKey);
+
+ $this->assertTrue(is_resource($res));
+
+ $sslInfo = openssl_pkey_get_details($res);
+
+ $this->assertArrayHasKey('key', $sslInfo);
+
+ }
+
+ function testGetPublicKey()
+ {
+
+ $publiceKey = Encryption\Keymanager::getPublicKey($this->view, $this->userId);
+
+ $res = openssl_pkey_get_public($publiceKey);
+
+ $this->assertTrue(is_resource($res));
+
+ $sslInfo = openssl_pkey_get_details($res);
+
+ $this->assertArrayHasKey('key', $sslInfo);
+ }
+
+ function testSetFileKey()
+ {
+
+ # NOTE: This cannot be tested until we are able to break out
+ # of the FileSystemView data directory root
+
+ $key = Encryption\Crypt::symmetricEncryptFileContentKeyfile($this->randomKey, 'hat');
+
+ $file = 'unittest-' . time() . '.txt';
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $this->view->file_put_contents($this->userId . '/files/' . $file, $key['encrypted']);
+
+ // Re-enable proxy - our work is done
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ //$view = new \OC_FilesystemView( '/' . $this->userId . '/files_encryption/keyfiles' );
+ Encryption\Keymanager::setFileKey($this->view, $file, $this->userId, $key['key']);
+
+ // enable encryption proxy
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = true;
+
+ // cleanup
+ $this->view->unlink('/' . $this->userId . '/files/' . $file);
+
+ // change encryption proxy to previous state
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ }
+
+ function testGetUserKeys()
+ {
+
+ $keys = Encryption\Keymanager::getUserKeys($this->view, $this->userId);
+
+ $resPublic = openssl_pkey_get_public($keys['publicKey']);
+
+ $this->assertTrue(is_resource($resPublic));
+
+ $sslInfoPublic = openssl_pkey_get_details($resPublic);
+
+ $this->assertArrayHasKey('key', $sslInfoPublic);
+
+ $privateKey = Encryption\Crypt::symmetricDecryptFileContent($keys['privateKey'], $this->pass);
+
+ $resPrivate = openssl_pkey_get_private($privateKey);
+
+ $this->assertTrue(is_resource($resPrivate));
+
+ $sslInfoPrivate = openssl_pkey_get_details($resPrivate);
+
+ $this->assertArrayHasKey('key', $sslInfoPrivate);
+ }
+
+ function testFixPartialFilePath()
+ {
+
+ $partFilename = 'testfile.txt.part';
+ $filename = 'testfile.txt';
+
+ $this->assertTrue(Encryption\Keymanager::isPartialFilePath($partFilename));
+
+ $this->assertEquals('testfile.txt', Encryption\Keymanager::fixPartialFilePath($partFilename));
+
+ $this->assertFalse(Encryption\Keymanager::isPartialFilePath($filename));
+
+ $this->assertEquals('testfile.txt', Encryption\Keymanager::fixPartialFilePath($filename));
+ }
+
+ function testRecursiveDelShareKeys()
+ {
+
+ // generate filename
+ $filename = '/tmp-' . time() . '.txt';
+
+ // create folder structure
+ $this->view->mkdir('/admin/files/folder1');
+ $this->view->mkdir('/admin/files/folder1/subfolder');
+ $this->view->mkdir('/admin/files/folder1/subfolder/subsubfolder');
+
+ // enable encryption proxy
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = true;
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt:///folder1/subfolder/subsubfolder/' . $filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // change encryption proxy to previous state
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // recursive delete keys
+ Encryption\Keymanager::delShareKey($this->view, array('admin'), '/folder1/');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/folder1/subfolder/subsubfolder/' . $filename . '.admin.shareKey'));
+
+ // enable encryption proxy
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = true;
+
+ // cleanup
+ $this->view->unlink('/admin/files/folder1');
+
+ // change encryption proxy to previous state
+ \OC_FileProxy::$enabled = $proxyStatus;
+ }
+}
--- /dev/null
+\r«ß\95\1f\v\ 5\92tÕ.µ¤\97dS@t9\v\bøQJ
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>,
+ * and Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+// require_once "PHPUnit/Framework/TestCase.php";
+// require_once realpath( dirname(__FILE__).'/../../../lib/base.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/Generator.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/MockInterface.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/Mock.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/Container.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/Configuration.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/CompositeExpectation.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/ExpectationDirector.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/Expectation.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/Exception.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/CountValidator/CountValidatorAbstract.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/CountValidator/Exception.php' );
+// require_once realpath( dirname(__FILE__).'/../../../3rdparty/mockery/Mockery/CountValidator/Exact.php' );
+//
+// use \Mockery as m;
+// use OCA\Encryption;
+
+// class Test_Util extends \PHPUnit_Framework_TestCase {
+//
+// public function setUp() {
+//
+// $this->proxy = new Encryption\Proxy();
+//
+// $this->tmpFileName = "tmpFile-".time();
+//
+// $this->privateKey = file_get_contents( realpath( dirname(__FILE__).'/data/admin.public.key' ) );
+// $this->publicKey = file_get_contents( realpath( dirname(__FILE__).'/data/admin.private.key' ) );
+// $this->encDataShort = file_get_contents( realpath( dirname(__FILE__).'/data/yoga-manchester-enc' ) );
+// $this->encDataShortKey = file_get_contents( realpath( dirname(__FILE__).'/data/yoga-manchester.key' ) );
+//
+// $this->dataShort = file_get_contents( realpath( dirname(__FILE__).'/data/yoga-manchester' ) );
+// $this->dataLong = file_get_contents( realpath( dirname(__FILE__).'/../lib/crypt.php' ) );
+// $this->longDataPath = realpath( dirname(__FILE__).'/../lib/crypt.php' );
+//
+// $this->data1 = file_get_contents( realpath( dirname(__FILE__).'/../../../data/admin/files/enc-test.txt' ) );
+//
+// \OC_FileProxy::$enabled = false;
+// $this->Encdata1 = file_get_contents( realpath( dirname(__FILE__).'/../../../data/admin/files/enc-test.txt' ) );
+// \OC_FileProxy::$enabled = true;
+//
+// $this->userId = 'admin';
+// $this->pass = 'admin';
+//
+// $this->session = new Encryption\Session( $view ); // FIXME: Provide a $view object for use here
+//
+// $this->session->setPrivateKey(
+// '-----BEGIN PRIVATE KEY-----
+// MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDiH3EA4EpFA7Fx
+// s2dyyfL5jwXeYXrTqQJ6DqKgGn8VsbT3eu8R9KzM2XitVwZe8c8L52DvJ06o5vg0
+// GqPYxilFdOFJe/ggac5Tq8UmJiZS4EqYEMwxBIfIyWTxeGV06/0HOwnVAkqHMcBz
+// 64qldtgi5O8kZMEM2/gKBgU0kMLJzM+8oEWhL1+gsUWQhxd8cKLXypS6iWgqFJrz
+// f/X0hJsJR+gyYxNpahtnjzd/LxLAETrOMsl2tue+BAxmjbAM0aG0NEM0div+b59s
+// 2uz/iWbxImp5pOdYVKcVW89D4XBMyGegR40trV2VwiuX1blKCfdjMsJhiaL9pymp
+// ug1wzyQFAgMBAAECggEAK6c+PZkPPXuVCgpEcliiW6NM0r2m5K3AGKgypQ34csu3
+// z/8foCvIIFPrhCtEw5eTDQ1CHWlNOjY8vHJYJ0U6Onpx86nHIRrMBkMm8FJ1G5LJ
+// U8oKYXwqaozWu/cuPwA//OFc6I5krOzh5n8WaRMkbrgbor8AtebRX74By0AXGrXe
+// cswJI7zR96oFn4Dm7Pgvpg5Zhk1vFJ+w6QtH+4DDJ6PBvlZsRkGxYBLGVd/3qhAI
+// sBAyjFlSzuP4eCRhHOhHC/e4gmAH9evFVXB88jFyRZm3K+jQ5W5CwrVRBCV2lph6
+// 2B6P7CBJN+IjGKMhy+75y13UvvKPv9IwH8Fzl2x1gQKBgQD8qQOr7a6KhSj16wQE
+// jim2xqt9gQ2jH5No405NrKs/PFQQZnzD4YseQsiK//NUjOJiUhaT+L5jhIpzINHt
+// RJpt3bGkEZmLyjdjgTpB3GwZdXa28DNK9VdXZ19qIl/ZH0qAjKmJCRahUDASMnVi
+// M4Pkk9yx9ZIKkri4TcuMWqc0DQKBgQDlHKBTITZq/arYPD6Nl3NsoOdqVRqJrGay
+// 0TjXAVbBXe46+z5lnMsqwXb79nx14hdmSEsZULrw/3f+MnQbdjMTYLFP24visZg9
+// MN8vAiALiiiR1a+Crz+DTA1Q8sGOMVCMqMDmD7QBys3ZuWxuapm0txAiIYUtsjJZ
+// XN76T4nZ2QKBgQCHaT3igzwsWTmesxowJtEMeGWomeXpKx8h89EfqA8PkRGsyIDN
+// qq+YxEoe1RZgljEuaLhZDdNcGsjo8woPk9kAUPTH7fbRCMuutK+4ZJ469s1tNkcH
+// QX5SBcEJbOrZvv967ehe3VQXmJZq6kgnHVzuwKBjcC2ZJRGDFY6l5l/+cQKBgCqh
+// +Adf/8NK7paMJ0urqfPFwSodKfICXZ3apswDWMRkmSbqh4La+Uc8dsqN5Dz/VEFZ
+// JHhSeGbN8uMfOlG93eU2MehdPxtw1pZUWMNjjtj23XO9ooob2CKzbSrp8TBnZsi1
+// widNNr66oTFpeo7VUUK6acsgF6sYJJxSVr+XO1yJAoGAEhvitq8shNKcEY0xCipS
+// k1kbgyS7KKB7opVxI5+ChEqyUDijS3Y9FZixrRIWE6i2uGu86UG+v2lbKvSbM4Qm
+// xvbOcX9OVMnlRb7n8woOP10UMY+ZE2x+YEUXQTLtPYq7F66e1OfxltstMxLQA+3d
+// Y1d5piFV8PXK3Fg2F+Cj5qg=
+// -----END PRIVATE KEY-----
+// '
+// , $this->userId
+// );
+//
+// \OC_User::setUserId( $this->userId );
+//
+// }
+//
+// public function testpreFile_get_contents() {
+//
+// // This won't work for now because mocking of the static keymanager class isn't working :(
+//
+// // $mock = m::mock( 'alias:OCA\Encryption\Keymanager' );
+// //
+// // $mock->shouldReceive( 'getFileKey' )->times(2)->andReturn( $this->encDataShort );
+// //
+// // $encrypted = $this->proxy->postFile_get_contents( 'data/'.$this->tmpFileName, $this->encDataShortKey );
+// //
+// // $this->assertNotEquals( $this->dataShort, $encrypted );
+//
+// $decrypted = $this->proxy->postFile_get_contents( 'data/admin/files/enc-test.txt', $this->data1 );
+//
+// }
+//
+// }
+
+// class Test_CryptProxy extends PHPUnit_Framework_TestCase {
+// private $oldConfig;
+// private $oldKey;
+//
+// public function setUp(){
+// $user=OC_User::getUser();
+//
+// $this->oldConfig=OCP\Config::getAppValue('files_encryption','enable_encryption','true');
+// OCP\Config::setAppValue('files_encryption','enable_encryption','true');
+// $this->oldKey=isset($_SESSION['privateKey'])?$_SESSION['privateKey']:null;
+//
+//
+// //set testing key
+// $_SESSION['privateKey']=md5(time());
+//
+// //clear all proxies and hooks so we can do clean testing
+// OC_FileProxy::clearProxies();
+// OC_Hook::clear('OC_Filesystem');
+//
+// //enable only the encryption hook
+// OC_FileProxy::register(new OC_FileProxy_Encryption());
+//
+// //set up temporary storage
+// OC_Filesystem::clearMounts();
+// OC_Filesystem::mount('OC_Filestorage_Temporary',array(),'/');
+//
+// OC_Filesystem::init('/'.$user.'/files');
+//
+// //set up the users home folder in the temp storage
+// $rootView=new OC_FilesystemView('');
+// $rootView->mkdir('/'.$user);
+// $rootView->mkdir('/'.$user.'/files');
+// }
+//
+// public function tearDown(){
+// OCP\Config::setAppValue('files_encryption','enable_encryption',$this->oldConfig);
+// if(!is_null($this->oldKey)){
+// $_SESSION['privateKey']=$this->oldKey;
+// }
+// }
+//
+// public function testSimple(){
+// $file=OC::$SERVERROOT.'/3rdparty/MDB2.php';
+// $original=file_get_contents($file);
+//
+// OC_Filesystem::file_put_contents('/file',$original);
+//
+// OC_FileProxy::$enabled=false;
+// $stored=OC_Filesystem::file_get_contents('/file');
+// OC_FileProxy::$enabled=true;
+//
+// $fromFile=OC_Filesystem::file_get_contents('/file');
+// $this->assertNotEquals($original,$stored);
+// $this->assertEquals(strlen($original),strlen($fromFile));
+// $this->assertEquals($original,$fromFile);
+//
+// }
+//
+// public function testView(){
+// $file=OC::$SERVERROOT.'/3rdparty/MDB2.php';
+// $original=file_get_contents($file);
+//
+// $rootView=new OC_FilesystemView('');
+// $view=new OC_FilesystemView('/'.OC_User::getUser());
+// $userDir='/'.OC_User::getUser().'/files';
+//
+// $rootView->file_put_contents($userDir.'/file',$original);
+//
+// OC_FileProxy::$enabled=false;
+// $stored=$rootView->file_get_contents($userDir.'/file');
+// OC_FileProxy::$enabled=true;
+//
+// $this->assertNotEquals($original,$stored);
+// $fromFile=$rootView->file_get_contents($userDir.'/file');
+// $this->assertEquals($original,$fromFile);
+//
+// $fromFile=$view->file_get_contents('files/file');
+// $this->assertEquals($original,$fromFile);
+// }
+//
+// public function testBinary(){
+// $file=__DIR__.'/binary';
+// $original=file_get_contents($file);
+//
+// OC_Filesystem::file_put_contents('/file',$original);
+//
+// OC_FileProxy::$enabled=false;
+// $stored=OC_Filesystem::file_get_contents('/file');
+// OC_FileProxy::$enabled=true;
+//
+// $fromFile=OC_Filesystem::file_get_contents('/file');
+// $this->assertNotEquals($original,$stored);
+// $this->assertEquals(strlen($original),strlen($fromFile));
+// $this->assertEquals($original,$fromFile);
+//
+// $file=__DIR__.'/zeros';
+// $original=file_get_contents($file);
+//
+// OC_Filesystem::file_put_contents('/file',$original);
+//
+// OC_FileProxy::$enabled=false;
+// $stored=OC_Filesystem::file_get_contents('/file');
+// OC_FileProxy::$enabled=true;
+//
+// $fromFile=OC_Filesystem::file_get_contents('/file');
+// $this->assertNotEquals($original,$stored);
+// $this->assertEquals(strlen($original),strlen($fromFile));
+// }
+// }
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Florin Peter
+ * @copyright 2013 Florin Peter <owncloud@florin-peter.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+require_once realpath(dirname(__FILE__) . '/../3rdparty/Crypt_Blowfish/Blowfish.php');
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../lib/helper.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Share
+ */
+class Test_Encryption_Share extends \PHPUnit_Framework_TestCase
+{
+
+ public $stateFilesTrashbin;
+ public $filename;
+ public $dataShort;
+ /**
+ * @var OC_FilesystemView
+ */
+ public $view;
+ public $folder1;
+ public $subfolder;
+ public $subsubfolder;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::clearBackends();
+ \OC_User::useBackend('database');
+
+ $this->dataShort = 'hats';
+ $this->view = new \OC_FilesystemView('/');
+
+ $userHome = \OC_User::getHome('admin');
+ $this->dataDir = str_replace('/admin', '', $userHome);
+
+ $this->folder1 = '/folder1';
+ $this->subfolder = '/subfolder1';
+ $this->subsubfolder = '/subsubfolder1';
+
+ $this->filename = 'share-tmp.test';
+
+ // enable resharing
+ \OC_Appconfig::setValue('core', 'shareapi_allow_resharing', 'yes');
+
+ // clear share hooks
+ \OC_Hook::clear('OCP\\Share');
+ \OC::registerShareHooks();
+ \OCP\Util::connectHook('OC_Filesystem', 'setup', '\OC\Files\Storage\Shared', 'setup');
+
+ // Sharing related hooks
+ \OCA\Encryption\Helper::registerShareHooks();
+
+ // Filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ // remember files_trashbin state
+ $this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
+
+ // we don't want to tests with app files_trashbin enabled
+ \OC_App::disable('files_trashbin');
+
+ // create users
+ $this->loginHelper('user1', true);
+ $this->loginHelper('user2', true);
+ $this->loginHelper('user3', true);
+
+ // create group and assign users
+ \OC_Group::createGroup('group1');
+ \OC_Group::addToGroup('user2', 'group1');
+ \OC_Group::addToGroup('user3', 'group1');
+ }
+
+ function tearDown()
+ {
+ // reset app files_trashbin
+ if ($this->stateFilesTrashbin) {
+ OC_App::enable('files_trashbin');
+ } else {
+ OC_App::disable('files_trashbin');
+ }
+
+ // clean group
+ \OC_Group::deleteGroup('group1');
+
+ // cleanup users
+ \OC_User::deleteUser('user1');
+ \OC_User::deleteUser('user2');
+ \OC_User::deleteUser('user3');
+
+ \OC_FileProxy::clearProxies();
+ }
+
+ /**
+ * @param bool $withTeardown
+ */
+ function testShareFile($withTeardown = true)
+ {
+ // login as admin
+ $this->loginHelper('admin');
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt://' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get the file info from previous created file
+ $fileInfo = $this->view->getFileInfo('/admin/files/' . $this->filename);
+
+ // check if we have a valid file info
+ $this->assertTrue(is_array($fileInfo));
+
+ // check if the unencrypted file size is stored
+ $this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // share the file
+ \OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user1', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user1 exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user1.shareKey'));
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ // get file contents
+ $retrievedCryptedFile = $this->view->file_get_contents('/user1/files/Shared/' . $this->filename);
+
+ // check if data is the same as we previously written
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // cleanup
+ if ($withTeardown) {
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // unshare the file
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user1');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user1.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files/' . $this->filename);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.admin.shareKey'));
+ }
+ }
+
+ /**
+ * @param bool $withTeardown
+ */
+ function testReShareFile($withTeardown = true)
+ {
+ $this->testShareFile(false);
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ // get the file info
+ $fileInfo = $this->view->getFileInfo('/user1/files/Shared/' . $this->filename);
+
+ // share the file with user2
+ \OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user2', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user2 exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey'));
+
+ // login as user2
+ $this->loginHelper('user2');
+
+ // get file contents
+ $retrievedCryptedFile = $this->view->file_get_contents('/user2/files/Shared/' . $this->filename);
+
+ // check if data is the same as previously written
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // cleanup
+ if ($withTeardown) {
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ // unshare the file with user2
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user2');
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey'));
+
+ // unshare the file with user1
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user1');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user1.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files/' . $this->filename);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.admin.shareKey'));
+ }
+ }
+
+ /**
+ * @param bool $withTeardown
+ * @return array
+ */
+ function testShareFolder($withTeardown = true)
+ {
+ // login as admin
+ $this->loginHelper('admin');
+
+ // create folder structure
+ $this->view->mkdir('/admin/files' . $this->folder1);
+ $this->view->mkdir('/admin/files' . $this->folder1 . $this->subfolder);
+ $this->view->mkdir('/admin/files' . $this->folder1 . $this->subfolder . $this->subsubfolder);
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt://' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get the file info from previous created folder
+ $fileInfo = $this->view->getFileInfo('/admin/files' . $this->folder1);
+
+ // check if we have a valid file info
+ $this->assertTrue(is_array($fileInfo));
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // share the folder with user1
+ \OCP\Share::shareItem('folder', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user1', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user1 exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user1.shareKey'));
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ // get file contents
+ $retrievedCryptedFile = $this->view->file_get_contents('/user1/files/Shared' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
+
+ // check if data is the same
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // cleanup
+ if ($withTeardown) {
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // unshare the folder with user1
+ \OCP\Share::unshare('folder', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user1');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user1.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files' . $this->folder1);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.admin.shareKey'));
+ }
+
+ return $fileInfo;
+ }
+
+ /**
+ * @param bool $withTeardown
+ */
+ function testReShareFolder($withTeardown = true)
+ {
+ $fileInfoFolder1 = $this->testShareFolder(false);
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get the file info from previous created folder
+ $fileInfoSubFolder = $this->view->getFileInfo('/user1/files/Shared' . $this->folder1 . $this->subfolder);
+
+ // check if we have a valid file info
+ $this->assertTrue(is_array($fileInfoSubFolder));
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // share the file with user2
+ \OCP\Share::shareItem('folder', $fileInfoSubFolder['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user2', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user2 exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user2.shareKey'));
+
+ // login as user2
+ $this->loginHelper('user2');
+
+ // get file contents
+ $retrievedCryptedFile = $this->view->file_get_contents('/user2/files/Shared' . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
+
+ // check if data is the same
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // get the file info
+ $fileInfo = $this->view->getFileInfo('/user2/files/Shared' . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
+
+ // check if we have fileInfos
+ $this->assertTrue(is_array($fileInfo));
+
+ // share the file with user3
+ \OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user3', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user3 exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user3.shareKey'));
+
+ // login as user3
+ $this->loginHelper('user3');
+
+ // get file contents
+ $retrievedCryptedFile = $this->view->file_get_contents('/user3/files/Shared/' . $this->filename);
+
+ // check if data is the same
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // cleanup
+ if ($withTeardown) {
+
+ // login as user2
+ $this->loginHelper('user2');
+
+ // unshare the file with user3
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user3');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user3.shareKey'));
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ // unshare the folder with user2
+ \OCP\Share::unshare('folder', $fileInfoSubFolder['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user2');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user2.shareKey'));
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // unshare the folder1 with user1
+ \OCP\Share::unshare('folder', $fileInfoFolder1['fileid'], \OCP\Share::SHARE_TYPE_USER, 'user1');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user1.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.admin.shareKey'));
+ }
+ }
+
+ function testPublicShareFile()
+ {
+ // login as admin
+ $this->loginHelper('admin');
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt://' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get the file info from previous created file
+ $fileInfo = $this->view->getFileInfo('/admin/files/' . $this->filename);
+
+ // check if we have a valid file info
+ $this->assertTrue(is_array($fileInfo));
+
+ // check if the unencrypted file size is stored
+ $this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // share the file
+ \OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_LINK, false, OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ $publicShareKeyId = \OC_Appconfig::getValue('files_encryption', 'publicShareKeyId');
+
+ // check if share key for public exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.' . $publicShareKeyId . '.shareKey'));
+
+ // some hacking to simulate public link
+ $GLOBALS['app'] = 'files_sharing';
+ $GLOBALS['fileOwner'] = 'admin';
+ \OC_User::setUserId('');
+
+ // get file contents
+ $retrievedCryptedFile = file_get_contents('crypt://' . $this->filename);
+
+ // check if data is the same as we previously written
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // tear down
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // unshare the file
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_LINK, null);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.' . $publicShareKeyId . '.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files/' . $this->filename);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.admin.shareKey'));
+ }
+
+ function testShareFileWithGroup()
+ {
+ // login as admin
+ $this->loginHelper('admin');
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt://' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get the file info from previous created file
+ $fileInfo = $this->view->getFileInfo('/admin/files/' . $this->filename);
+
+ // check if we have a valid file info
+ $this->assertTrue(is_array($fileInfo));
+
+ // check if the unencrypted file size is stored
+ $this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // share the file
+ \OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, 'group1', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user2 and user3 exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey'));
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user3.shareKey'));
+
+ // login as user1
+ $this->loginHelper('user2');
+
+ // get file contents
+ $retrievedCryptedFile = $this->view->file_get_contents('/user2/files/Shared/' . $this->filename);
+
+ // check if data is the same as we previously written
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // unshare the file
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, 'group1');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey'));
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user3.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files/' . $this->filename);
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.admin.shareKey'));
+
+ }
+
+ function testRecoveryFile()
+ {
+ \OCA\Encryption\Helper::adminEnableRecovery(null, 'test123');
+ $recoveryKeyId = OC_Appconfig::getValue('files_encryption', 'recoveryKeyId');
+
+ // check if control file created
+ $this->assertTrue($this->view->file_exists('/control-file/controlfile.enc'));
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ $util = new \OCA\Encryption\Util(new \OC_FilesystemView('/'), 'admin');
+
+ // check if recovery password match
+ $this->assertTrue($util->checkRecoveryPassword('test123'));
+
+ // enable recovery for admin
+ $this->assertTrue($util->setRecoveryForUser(1));
+
+ // create folder structure
+ $this->view->mkdir('/admin/files' . $this->folder1);
+ $this->view->mkdir('/admin/files' . $this->folder1 . $this->subfolder);
+ $this->view->mkdir('/admin/files' . $this->folder1 . $this->subfolder . $this->subsubfolder);
+
+ // save file with content
+ $cryptedFile1 = file_put_contents('crypt://' . $this->filename, $this->dataShort);
+ $cryptedFile2 = file_put_contents('crypt://' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile1));
+ $this->assertTrue(is_int($cryptedFile2));
+
+ // check if share key for admin and recovery exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.admin.shareKey'));
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.admin.shareKey'));
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+
+ // disable recovery for admin
+ $this->assertTrue($util->setRecoveryForUser(0));
+
+ // remove all recovery keys
+ $util->removeRecoveryKeys('/');
+
+ // check if share key for recovery not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+
+ // enable recovery for admin
+ $this->assertTrue($util->setRecoveryForUser(1));
+
+ // remove all recovery keys
+ $util->addRecoveryKeys('/');
+
+ // check if share key for admin and recovery exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files/' . $this->filename);
+ $this->view->unlink('/admin/files/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
+
+ // check if share key for recovery not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+
+ $this->assertTrue(\OCA\Encryption\Helper::adminEnableRecovery(null, 'test123'));
+ $this->assertTrue(\OCA\Encryption\Helper::adminDisableRecovery('test123'));
+ $this->assertEquals(0, \OC_Appconfig::getValue('files_encryption', 'recoveryAdminEnabled'));
+ }
+
+ function testRecoveryForUser()
+ {
+ // login as admin
+ $this->loginHelper('admin');
+
+ \OCA\Encryption\Helper::adminEnableRecovery(null, 'test123');
+ $recoveryKeyId = OC_Appconfig::getValue('files_encryption', 'recoveryKeyId');
+
+ // check if control file created
+ $this->assertTrue($this->view->file_exists('/control-file/controlfile.enc'));
+
+ // login as user1
+ $this->loginHelper('user1');
+
+ $util = new \OCA\Encryption\Util(new \OC_FilesystemView('/'), 'user1');
+
+ // enable recovery for admin
+ $this->assertTrue($util->setRecoveryForUser(1));
+
+ // create folder structure
+ $this->view->mkdir('/user1/files' . $this->folder1);
+ $this->view->mkdir('/user1/files' . $this->folder1 . $this->subfolder);
+ $this->view->mkdir('/user1/files' . $this->folder1 . $this->subfolder . $this->subsubfolder);
+
+ // save file with content
+ $cryptedFile1 = file_put_contents('crypt://' . $this->filename, $this->dataShort);
+ $cryptedFile2 = file_put_contents('crypt://' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile1));
+ $this->assertTrue(is_int($cryptedFile2));
+
+ // check if share key for user and recovery exists
+ $this->assertTrue($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->filename . '.user1.shareKey'));
+ $this->assertTrue($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+ $this->assertTrue($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user1.shareKey'));
+ $this->assertTrue($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // change password
+ \OC_User::setPassword('user1', 'test', 'test123');
+
+ // login as user1
+ $this->loginHelper('user1', false, 'test');
+
+ // get file contents
+ $retrievedCryptedFile1 = file_get_contents('crypt://' . $this->filename);
+ $retrievedCryptedFile2 = file_get_contents('crypt://' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename);
+
+ // check if data is the same as we previously written
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile1);
+ $this->assertEquals($this->dataShort, $retrievedCryptedFile2);
+
+ // cleanup
+ $this->view->unlink('/user1/files' . $this->folder1);
+ $this->view->unlink('/user1/files' . $this->filename);
+
+ // check if share key for user and recovery exists
+ $this->assertFalse($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->filename . '.user1.shareKey'));
+ $this->assertFalse($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+ $this->assertFalse($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.user1.shareKey'));
+ $this->assertFalse($this->view->file_exists('/user1/files_encryption/share-keys/' . $this->folder1 . $this->subfolder . $this->subsubfolder . '/' . $this->filename . '.' . $recoveryKeyId . '.shareKey'));
+
+ // enable recovery for admin
+ $this->assertTrue($util->setRecoveryForUser(0));
+
+ \OCA\Encryption\Helper::adminDisableRecovery('test123');
+ $this->assertEquals(0, \OC_Appconfig::getValue('files_encryption', 'recoveryAdminEnabled'));
+ }
+
+ function testFailShareFile()
+ {
+ // login as admin
+ $this->loginHelper('admin');
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt://' . $this->filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get the file info from previous created file
+ $fileInfo = $this->view->getFileInfo('/admin/files/' . $this->filename);
+
+ // check if we have a valid file info
+ $this->assertTrue(is_array($fileInfo));
+
+ // check if the unencrypted file size is stored
+ $this->assertGreaterThan(0, $fileInfo['unencrypted_size']);
+
+ // break users public key
+ $this->view->rename('/public-keys/user2.public.key', '/public-keys/user2.public.key_backup');
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // share the file
+ \OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, 'group1', OCP\PERMISSION_ALL);
+
+ // login as admin
+ $this->loginHelper('admin');
+
+ // check if share key for user1 not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey'));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // break user1 public key
+ $this->view->rename('/public-keys/user2.public.key_backup', '/public-keys/user2.public.key');
+
+ // remove share file
+ $this->view->unlink('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey');
+
+ // re-enable the file proxy
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // unshare the file with user1
+ \OCP\Share::unshare('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_GROUP, 'group1');
+
+ // check if share key not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $this->filename . '.user2.shareKey'));
+
+ // cleanup
+ $this->view->unlink('/admin/files/' . $this->filename);
+ }
+
+
+
+ /**
+ * @param $user
+ * @param bool $create
+ * @param bool $password
+ */
+ function loginHelper($user, $create = false, $password = false)
+ {
+ if ($create) {
+ \OC_User::createUser($user, $user);
+ }
+
+ if ($password === false) {
+ $password = $user;
+ }
+
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($user);
+ \OC_User::setUserId($user);
+
+ $params['uid'] = $user;
+ $params['password'] = $password;
+ OCA\Encryption\Hooks::login($params);
+ }
+}
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Florin Peter
+ * @copyright 2013 Florin Peter <owncloud@florin-peter.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Stream
+ * @brief this class provide basic stream tests
+ */
+class Test_Encryption_Stream extends \PHPUnit_Framework_TestCase
+{
+
+ public $userId;
+ public $pass;
+ /**
+ * @var \OC_FilesystemView
+ */
+ public $view;
+ public $dataShort;
+ public $stateFilesTrashbin;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::useBackend('database');
+
+ // set user id
+ \OC_User::setUserId('admin');
+ $this->userId = 'admin';
+ $this->pass = 'admin';
+
+ // init filesystem view
+ $this->view = new \OC_FilesystemView('/');
+
+ // init short data
+ $this->dataShort = 'hats';
+
+ // init filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ // register encryption file proxy
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ // remember files_trashbin state
+ $this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
+
+ // we don't want to tests with app files_trashbin enabled
+ \OC_App::disable('files_trashbin');
+
+ // init filesystem for user
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($this->userId);
+ \OC_User::setUserId($this->userId);
+
+ // login user
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ OCA\Encryption\Hooks::login($params);
+ }
+
+ function tearDown()
+ {
+ // reset app files_trashbin
+ if ($this->stateFilesTrashbin) {
+ OC_App::enable('files_trashbin');
+ } else {
+ OC_App::disable('files_trashbin');
+ }
+
+ // clear all proxies
+ \OC_FileProxy::clearProxies();
+ }
+
+ function testStreamOptions() {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ $handle = $view->fopen($filename, 'r');
+
+ // check if stream is at position zero
+ $this->assertEquals(0,ftell($handle));
+
+ // set stream options
+ $this->assertTrue(flock($handle, LOCK_SH));
+ $this->assertTrue(flock($handle, LOCK_UN));
+
+ // tear down
+ $view->unlink($filename);
+ }
+
+ function testStreamSetBlocking() {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ $handle = $view->fopen($filename, 'r');
+
+ // set stream options
+ $this->assertTrue(stream_set_blocking($handle,1));
+
+ // tear down
+ $view->unlink($filename);
+ }
+
+ function testStreamSetTimeout() {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ $handle = $view->fopen($filename, 'r');
+
+ // set stream options
+ $this->assertFalse(stream_set_timeout($handle,1));
+
+ // tear down
+ $view->unlink($filename);
+ }
+
+ function testStreamSetWriteBuffer() {
+ $filename = '/tmp-' . time();
+ $view = new \OC\Files\View('/' . $this->userId . '/files');
+
+ // Save short data as encrypted file using stream wrapper
+ $cryptedFile = $view->file_put_contents($filename, $this->dataShort);
+
+ // Test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ $handle = $view->fopen($filename, 'r');
+
+ // set stream options
+ $this->assertEquals(0, stream_set_write_buffer($handle,1024));
+
+ // tear down
+ $view->unlink($filename);
+ }
+}
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Florin Peter
+ * @copyright 2013 Florin Peter <owncloud@florin-peter.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+require_once realpath(dirname(__FILE__) . '/../../files_trashbin/appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Trashbin
+ * @brief this class provide basic trashbin app tests
+ */
+class Test_Encryption_Trashbin extends \PHPUnit_Framework_TestCase
+{
+
+ public $userId;
+ public $pass;
+ /**
+ * @var \OC_FilesystemView
+ */
+ public $view;
+ public $dataShort;
+ public $stateFilesTrashbin;
+ public $folder1;
+ public $subfolder;
+ public $subsubfolder;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::useBackend('database');
+
+ // set user id
+ \OC_User::setUserId('admin');
+ $this->userId = 'admin';
+ $this->pass = 'admin';
+
+ // init filesystem view
+ $this->view = new \OC_FilesystemView('/');
+
+ // init short data
+ $this->dataShort = 'hats';
+
+ $this->folder1 = '/folder1';
+ $this->subfolder = '/subfolder1';
+ $this->subsubfolder = '/subsubfolder1';
+
+ \OC_Hook::clear('OC_Filesystem');
+ \OC_Hook::clear('OC_User');
+
+ // init filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ // register encryption file proxy
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ // trashbin hooks
+ \OCA\Files_Trashbin\Trashbin::registerHooks();
+
+ // remember files_trashbin state
+ $this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
+
+ // we don't want to tests with app files_trashbin enabled
+ \OC_App::enable('files_trashbin');
+
+ // init filesystem for user
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($this->userId);
+ \OC_User::setUserId($this->userId);
+
+ // login user
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ OCA\Encryption\Hooks::login($params);
+ }
+
+ function tearDown()
+ {
+ // reset app files_trashbin
+ if ($this->stateFilesTrashbin) {
+ OC_App::enable('files_trashbin');
+ } else {
+ OC_App::disable('files_trashbin');
+ }
+
+ // clear all proxies
+ \OC_FileProxy::clearProxies();
+ }
+
+ /**
+ * @brief test delete file
+ */
+ function testDeleteFile() {
+
+ // generate filename
+ $filename = 'tmp-' . time() . '.txt';
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt:///' . $filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // check if key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/keyfiles/' . $filename . '.key'));
+
+ // check if share key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $filename . '.admin.shareKey'));
+
+ // delete file
+ \OC\FIles\Filesystem::unlink($filename);
+
+ // check if file not exists
+ $this->assertFalse($this->view->file_exists('/admin/files/' . $filename));
+
+ // check if key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/keyfiles/' . $filename . '.key'));
+
+ // check if share key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $filename . '.admin.shareKey'));
+
+ // get files
+ $trashFiles = $this->view->getDirectoryContent('/admin/files_trashbin/files/');
+
+ $trashFileSuffix = null;
+ // find created file with timestamp
+ foreach($trashFiles as $file) {
+ if(strncmp($file['path'], $filename, strlen($filename))) {
+ $path_parts = pathinfo($file['name']);
+ $trashFileSuffix = $path_parts['extension'];
+ }
+ }
+
+ // check if we found the file we created
+ $this->assertNotNull($trashFileSuffix);
+
+ // check if key for admin not exists
+ $this->assertTrue($this->view->file_exists('/admin/files_trashbin/keyfiles/' . $filename . '.key.' . $trashFileSuffix));
+
+ // check if share key for admin not exists
+ $this->assertTrue($this->view->file_exists('/admin/files_trashbin/share-keys/' . $filename . '.admin.shareKey.' . $trashFileSuffix));
+
+ // return filename for next test
+ return $filename . '.' . $trashFileSuffix;
+ }
+
+ /**
+ * @brief test restore file
+ *
+ * @depends testDeleteFile
+ */
+ function testRestoreFile($filename) {
+
+ // prepare file information
+ $path_parts = pathinfo($filename);
+ $trashFileSuffix = $path_parts['extension'];
+ $timestamp = str_replace('d', '', $trashFileSuffix);
+ $fileNameWithoutSuffix = str_replace('.'.$trashFileSuffix, '', $filename);
+
+ // restore file
+ $this->assertTrue(\OCA\Files_Trashbin\Trashbin::restore($filename, $fileNameWithoutSuffix, $timestamp));
+
+ // check if file exists
+ $this->assertTrue($this->view->file_exists('/admin/files/' . $fileNameWithoutSuffix));
+
+ // check if key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/keyfiles/' . $fileNameWithoutSuffix . '.key'));
+
+ // check if share key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $fileNameWithoutSuffix . '.admin.shareKey'));
+ }
+
+ /**
+ * @brief test delete file forever
+ */
+ function testPermanentDeleteFile() {
+
+ // generate filename
+ $filename = 'tmp-' . time() . '.txt';
+
+ // save file with content
+ $cryptedFile = file_put_contents('crypt:///' . $filename, $this->dataShort);
+
+ // test that data was successfully written
+ $this->assertTrue(is_int($cryptedFile));
+
+ // check if key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/keyfiles/' . $filename . '.key'));
+
+ // check if share key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_encryption/share-keys/' . $filename . '.admin.shareKey'));
+
+ // delete file
+ \OC\FIles\Filesystem::unlink($filename);
+
+ // check if file not exists
+ $this->assertFalse($this->view->file_exists('/admin/files/' . $filename));
+
+ // check if key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/keyfiles/' . $filename . '.key'));
+
+ // check if share key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_encryption/share-keys/' . $filename . '.admin.shareKey'));
+
+ // get files
+ $trashFiles = $this->view->getDirectoryContent('/admin/files_trashbin/files/');
+
+ $trashFileSuffix = null;
+ // find created file with timestamp
+ foreach($trashFiles as $file) {
+ if(strncmp($file['path'], $filename, strlen($filename))) {
+ $path_parts = pathinfo($file['name']);
+ $trashFileSuffix = $path_parts['extension'];
+ }
+ }
+
+ // check if we found the file we created
+ $this->assertNotNull($trashFileSuffix);
+
+ // check if key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_trashbin/keyfiles/' . $filename . '.key.' . $trashFileSuffix));
+
+ // check if share key for admin exists
+ $this->assertTrue($this->view->file_exists('/admin/files_trashbin/share-keys/' . $filename . '.admin.shareKey.' . $trashFileSuffix));
+
+ // get timestamp from file
+ $timestamp = str_replace('d', '', $trashFileSuffix);
+
+ // delete file forever
+ $this->assertGreaterThan(0, \OCA\Files_Trashbin\Trashbin::delete($filename, $timestamp));
+
+ // check if key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_trashbin/files/' . $filename . '.' . $trashFileSuffix));
+
+ // check if key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_trashbin/keyfiles/' . $filename . '.key.' . $trashFileSuffix));
+
+ // check if share key for admin not exists
+ $this->assertFalse($this->view->file_exists('/admin/files_trashbin/share-keys/' . $filename . '.admin.shareKey.' . $trashFileSuffix));
+ }
+
+}
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Util
+ */
+class Test_Encryption_Util extends \PHPUnit_Framework_TestCase
+{
+
+ public $userId;
+ public $encryptionDir;
+ public $publicKeyDir;
+ public $pass;
+ /**
+ * @var OC_FilesystemView
+ */
+ public $view;
+ public $keyfilesPath;
+ public $publicKeyPath;
+ public $privateKeyPath;
+ /**
+ * @var \OCA\Encryption\Util
+ */
+ public $util;
+ public $dataShort;
+ public $legacyEncryptedData;
+ public $legacyEncryptedDataKey;
+ public $lagacyKey;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::useBackend('database');
+
+ \OC_User::setUserId('admin');
+ $this->userId = 'admin';
+ $this->pass = 'admin';
+
+ // set content for encrypting / decrypting in tests
+ $this->dataUrl = realpath(dirname(__FILE__) . '/../lib/crypt.php');
+ $this->dataShort = 'hats';
+ $this->dataLong = file_get_contents(realpath(dirname(__FILE__) . '/../lib/crypt.php'));
+ $this->legacyData = realpath(dirname(__FILE__) . '/legacy-text.txt');
+ $this->legacyEncryptedData = realpath(dirname(__FILE__) . '/legacy-encrypted-text.txt');
+ $this->legacyEncryptedDataKey = realpath(dirname(__FILE__) . '/encryption.key');
+ $this->lagacyKey = '62829813025828180801';
+
+ $keypair = Encryption\Crypt::createKeypair();
+
+ $this->genPublicKey = $keypair['publicKey'];
+ $this->genPrivateKey = $keypair['privateKey'];
+
+ $this->publicKeyDir = '/' . 'public-keys';
+ $this->encryptionDir = '/' . $this->userId . '/' . 'files_encryption';
+ $this->keyfilesPath = $this->encryptionDir . '/' . 'keyfiles';
+ $this->publicKeyPath = $this->publicKeyDir . '/' . $this->userId . '.public.key'; // e.g. data/public-keys/admin.public.key
+ $this->privateKeyPath = $this->encryptionDir . '/' . $this->userId . '.private.key'; // e.g. data/admin/admin.private.key
+
+ $this->view = new \OC_FilesystemView('/');
+
+ $userHome = \OC_User::getHome($this->userId);
+ $this->dataDir = str_replace('/' . $this->userId, '', $userHome);
+
+ // Filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($this->userId);
+ \OC_User::setUserId($this->userId);
+
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ OCA\Encryption\Hooks::login($params);
+
+ $this->util = new Encryption\Util($this->view, $this->userId);
+ }
+
+ function tearDown()
+ {
+
+ \OC_FileProxy::clearProxies();
+ }
+
+ /**
+ * @brief test that paths set during User construction are correct
+ */
+ function testKeyPaths()
+ {
+ $util = new Encryption\Util($this->view, $this->userId);
+
+ $this->assertEquals($this->publicKeyDir, $util->getPath('publicKeyDir'));
+ $this->assertEquals($this->encryptionDir, $util->getPath('encryptionDir'));
+ $this->assertEquals($this->keyfilesPath, $util->getPath('keyfilesPath'));
+ $this->assertEquals($this->publicKeyPath, $util->getPath('publicKeyPath'));
+ $this->assertEquals($this->privateKeyPath, $util->getPath('privateKeyPath'));
+
+ }
+
+ /**
+ * @brief test setup of encryption directories
+ */
+ function testSetupServerSide()
+ {
+ $this->assertEquals(true, $this->util->setupServerSide($this->pass));
+ }
+
+ /**
+ * @brief test checking whether account is ready for encryption,
+ */
+ function testUserIsReady()
+ {
+ $this->assertEquals(true, $this->util->ready());
+ }
+
+ /**
+ * @brief test checking whether account is not ready for encryption,
+ */
+ function testUserIsNotReady()
+ {
+ $this->view->unlink($this->publicKeyDir);
+
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ $this->assertFalse(OCA\Encryption\Hooks::login($params));
+
+ $this->view->unlink($this->privateKeyPath);
+ }
+
+ /**
+ * @brief test checking whether account is not ready for encryption,
+ */
+ function testIsLagacyUser()
+ {
+ $userView = new \OC_FilesystemView( '/' . $this->userId );
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $encryptionKeyContent = file_get_contents($this->legacyEncryptedDataKey);
+ $userView->file_put_contents('/encryption.key', $encryptionKeyContent);
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+
+ $util = new Encryption\Util($this->view, $this->userId);
+ $util->setMigrationStatus(0);
+
+ $this->assertTrue(OCA\Encryption\Hooks::login($params));
+
+ $this->assertEquals($this->lagacyKey, $_SESSION['legacyKey']);
+ }
+
+ function testRecoveryEnabledForUser()
+ {
+
+ $util = new Encryption\Util($this->view, $this->userId);
+
+ // Record the value so we can return it to it's original state later
+ $enabled = $util->recoveryEnabledForUser();
+
+ $this->assertTrue($util->setRecoveryForUser(1));
+
+ $this->assertEquals(1, $util->recoveryEnabledForUser());
+
+ $this->assertTrue($util->setRecoveryForUser(0));
+
+ $this->assertEquals(0, $util->recoveryEnabledForUser());
+
+ // Return the setting to it's previous state
+ $this->assertTrue($util->setRecoveryForUser($enabled));
+
+ }
+
+ function testGetUidAndFilename()
+ {
+
+ \OC_User::setUserId('admin');
+
+ $filename = 'tmp-' . time() . '.test';
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $this->view->file_put_contents($this->userId . '/files/' . $filename, $this->dataShort);
+
+ // Re-enable proxy - our work is done
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ $util = new Encryption\Util($this->view, $this->userId);
+
+ list($fileOwnerUid, $file) = $util->getUidAndFilename($filename);
+
+ $this->assertEquals('admin', $fileOwnerUid);
+
+ $this->assertEquals($file, $filename);
+ }
+
+ function testIsSharedPath() {
+ $sharedPath = '/user1/files/Shared/test';
+ $path = '/user1/files/test';
+
+ $this->assertTrue($this->util->isSharedPath($sharedPath));
+
+ $this->assertFalse($this->util->isSharedPath($path));
+ }
+
+ function testEncryptLagacyFiles()
+ {
+ $userView = new \OC_FilesystemView( '/' . $this->userId);
+ $view = new \OC_FilesystemView( '/' . $this->userId . '/files' );
+
+ // Disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ $encryptionKeyContent = file_get_contents($this->legacyEncryptedDataKey);
+ $userView->file_put_contents('/encryption.key', $encryptionKeyContent);
+
+ $legacyEncryptedData = file_get_contents($this->legacyEncryptedData);
+ $view->mkdir('/test/');
+ $view->mkdir('/test/subtest/');
+ $view->file_put_contents('/test/subtest/legacy-encrypted-text.txt', $legacyEncryptedData);
+
+ $fileInfo = $view->getFileInfo('/test/subtest/legacy-encrypted-text.txt');
+ $fileInfo['encrypted'] = true;
+ $view->putFileInfo('/test/subtest/legacy-encrypted-text.txt', $fileInfo);
+
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+
+ $util = new Encryption\Util($this->view, $this->userId);
+ $util->setMigrationStatus(0);
+
+ $this->assertTrue(OCA\Encryption\Hooks::login($params));
+
+ $this->assertEquals($this->lagacyKey, $_SESSION['legacyKey']);
+
+ $files = $util->findEncFiles('/' . $this->userId . '/files/');
+
+ $this->assertTrue(is_array($files));
+
+ $found = false;
+ foreach($files['encrypted'] as $encryptedFile) {
+ if($encryptedFile['name'] === 'legacy-encrypted-text.txt') {
+ $found = true;
+ break;
+ }
+ }
+
+ $this->assertTrue($found);
+ }
+}
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * ownCloud
+ *
+ * @author Florin Peter
+ * @copyright 2013 Florin Peter <owncloud@florin-peter.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+require_once realpath(dirname(__FILE__) . '/../../../lib/base.php');
+require_once realpath(dirname(__FILE__) . '/../lib/crypt.php');
+require_once realpath(dirname(__FILE__) . '/../lib/keymanager.php');
+require_once realpath(dirname(__FILE__) . '/../lib/proxy.php');
+require_once realpath(dirname(__FILE__) . '/../lib/stream.php');
+require_once realpath(dirname(__FILE__) . '/../lib/util.php');
+require_once realpath(dirname(__FILE__) . '/../appinfo/app.php');
+
+use OCA\Encryption;
+
+/**
+ * Class Test_Encryption_Webdav
+ * @brief this class provide basic webdav tests for PUT,GET and DELETE
+ */
+class Test_Encryption_Webdav extends \PHPUnit_Framework_TestCase
+{
+
+ public $userId;
+ public $pass;
+ /**
+ * @var \OC_FilesystemView
+ */
+ public $view;
+ public $dataShort;
+ public $stateFilesTrashbin;
+
+ function setUp()
+ {
+ // reset backend
+ \OC_User::useBackend('database');
+
+ // set user id
+ \OC_User::setUserId('admin');
+ $this->userId = 'admin';
+ $this->pass = 'admin';
+
+ // init filesystem view
+ $this->view = new \OC_FilesystemView('/');
+
+ // init short data
+ $this->dataShort = 'hats';
+
+ // init filesystem related hooks
+ \OCA\Encryption\Helper::registerFilesystemHooks();
+
+ // register encryption file proxy
+ \OC_FileProxy::register(new OCA\Encryption\Proxy());
+
+ // remember files_trashbin state
+ $this->stateFilesTrashbin = OC_App::isEnabled('files_trashbin');
+
+ // we don't want to tests with app files_trashbin enabled
+ \OC_App::disable('files_trashbin');
+
+ // init filesystem for user
+ \OC_Util::tearDownFS();
+ \OC_User::setUserId('');
+ \OC\Files\Filesystem::tearDown();
+ \OC_Util::setupFS($this->userId);
+ \OC_User::setUserId($this->userId);
+
+ // login user
+ $params['uid'] = $this->userId;
+ $params['password'] = $this->pass;
+ OCA\Encryption\Hooks::login($params);
+ }
+
+ function tearDown()
+ {
+ // reset app files_trashbin
+ if ($this->stateFilesTrashbin) {
+ OC_App::enable('files_trashbin');
+ } else {
+ OC_App::disable('files_trashbin');
+ }
+
+ // clear all proxies
+ \OC_FileProxy::clearProxies();
+ }
+
+ /**
+ * @brief test webdav put random file
+ */
+ function testWebdavPUT() {
+
+ // generate filename
+ $filename = '/tmp-' . time() . '.txt';
+
+ // set server vars
+ $_SERVER['REQUEST_METHOD'] = 'OPTIONS';
+
+ $_SERVER['REQUEST_METHOD'] = 'PUT';
+ $_SERVER['REQUEST_URI'] = '/remote.php/webdav' . $filename;
+ $_SERVER['HTTP_AUTHORIZATION'] = 'Basic YWRtaW46YWRtaW4=';
+ $_SERVER['CONTENT_TYPE'] = 'application/octet-stream';
+ $_SERVER['PATH_INFO'] = '/webdav' . $filename;
+ $_SERVER['CONTENT_LENGTH'] = strlen($this->dataShort);
+
+ // handle webdav request
+ $this->handleWebdavRequest($this->dataShort);
+
+ // check if file was created
+ $this->assertTrue($this->view->file_exists('/' . $this->userId . '/files' . $filename));
+
+ // check if key-file was created
+ $this->assertTrue($this->view->file_exists('/' . $this->userId . '/files_encryption/keyfiles/' . $filename . '.key'));
+
+ // check if shareKey-file was created
+ $this->assertTrue($this->view->file_exists('/' . $this->userId . '/files_encryption/share-keys/' . $filename . '.' . $this->userId . '.shareKey'));
+
+ // disable encryption proxy to prevent recursive calls
+ $proxyStatus = \OC_FileProxy::$enabled;
+ \OC_FileProxy::$enabled = false;
+
+ // get encrypted file content
+ $encryptedContent = $this->view->file_get_contents('/' . $this->userId . '/files' . $filename);
+
+ // restore proxy state
+ \OC_FileProxy::$enabled = $proxyStatus;
+
+ // check if encrypted content is valid
+ $this->assertTrue(Encryption\Crypt::isCatfileContent($encryptedContent));
+
+ // get decrypted file contents
+ $decrypt = file_get_contents('crypt://' . $filename);
+
+ // check if file content match with the written content
+ $this->assertEquals($this->dataShort, $decrypt);
+
+ // return filename for next test
+ return $filename;
+ }
+
+ /**
+ * @brief test webdav get random file
+ *
+ * @depends testWebdavPUT
+ */
+ function testWebdavGET($filename) {
+
+ // set server vars
+ $_SERVER['REQUEST_METHOD'] = 'GET';
+ $_SERVER['REQUEST_URI'] = '/remote.php/webdav' . $filename;
+ $_SERVER['HTTP_AUTHORIZATION'] = 'Basic YWRtaW46YWRtaW4=';
+ $_SERVER['PATH_INFO'] = '/webdav' . $filename;
+
+ // handle webdav request
+ $content = $this->handleWebdavRequest();
+
+ // check if file content match with the written content
+ $this->assertEquals($this->dataShort, $content);
+
+ // return filename for next test
+ return $filename;
+ }
+
+ /**
+ * @brief test webdav delete random file
+ * @depends testWebdavGET
+ */
+ function testWebdavDELETE($filename) {
+ // set server vars
+ $_SERVER['REQUEST_METHOD'] = 'DELETE';
+ $_SERVER['REQUEST_URI'] = '/remote.php/webdav' . $filename;
+ $_SERVER['HTTP_AUTHORIZATION'] = 'Basic YWRtaW46YWRtaW4=';
+ $_SERVER['PATH_INFO'] = '/webdav' . $filename;
+
+ // handle webdav request
+ $content = $this->handleWebdavRequest();
+
+ // check if file was removed
+ $this->assertFalse($this->view->file_exists('/' . $this->userId . '/files' . $filename));
+
+ // check if key-file was removed
+ $this->assertFalse($this->view->file_exists('/' . $this->userId . '/files_encryption/keyfiles' . $filename . '.key'));
+
+ // check if shareKey-file was removed
+ $this->assertFalse($this->view->file_exists('/' . $this->userId . '/files_encryption/share-keys' . $filename . '.' . $this->userId . '.shareKey'));
+ }
+
+ /**
+ * @brief handle webdav request
+ *
+ * @param bool $body
+ *
+ * @note this init procedure is copied from /apps/files/remote.php
+ */
+ function handleWebdavRequest($body = false) {
+ // Backends
+ $authBackend = new OC_Connector_Sabre_Auth();
+ $lockBackend = new OC_Connector_Sabre_Locks();
+ $requestBackend = new OC_Connector_Sabre_Request();
+
+ // Create ownCloud Dir
+ $publicDir = new OC_Connector_Sabre_Directory('');
+
+ // Fire up server
+ $server = new Sabre_DAV_Server($publicDir);
+ $server->httpRequest = $requestBackend;
+ $server->setBaseUri('/remote.php/webdav/');
+
+ // Load plugins
+ $server->addPlugin(new Sabre_DAV_Auth_Plugin($authBackend, 'ownCloud'));
+ $server->addPlugin(new Sabre_DAV_Locks_Plugin($lockBackend));
+ $server->addPlugin(new Sabre_DAV_Browser_Plugin(false)); // Show something in the Browser, but no upload
+ $server->addPlugin(new OC_Connector_Sabre_QuotaPlugin());
+ $server->addPlugin(new OC_Connector_Sabre_MaintenancePlugin());
+
+ // And off we go!
+ if($body) {
+ $server->httpRequest->setBody($body);
+ }
+
+ // turn on output buffering
+ ob_start();
+
+ // handle request
+ $server->exec();
+
+ // file content is written in the output buffer
+ $content = ob_get_contents();
+
+ // flush the output buffer and turn off output buffering
+ ob_end_clean();
+
+ // return captured content
+ return $content;
+ }
+}
\ No newline at end of file
projects / nextcloud-server.git / commitdiff