Add Dropbox storage backend

2 files changed, 204 insertions, 0 deletions

diff --git a/apps/files_external/appinfo/app.php b/apps/files_external/appinfo/app.php
index b7a07b4aacb..837d35c9c63 100644
--- a/apps/files_external/appinfo/app.php
+++ b/apps/files_external/appinfo/app.php
@@ -13,6 +13,7 @@ OC::$CLASSPATH['OC_Filestorage_Google']='apps/files_external/lib/google.php';
 OC::$CLASSPATH['OC_Filestorage_SWIFT']='apps/files_external/lib/swift.php';
 OC::$CLASSPATH['OC_Filestorage_SMB']='apps/files_external/lib/smb.php';
 OC::$CLASSPATH['OC_Filestorage_AmazonS3']='apps/files_external/lib/amazons3.php';
+OC::$CLASSPATH['OC_Filestorage_Dropbox']='apps/files_external/lib/dropbox.php';
 OC::$CLASSPATH['OC_Mount_Config']='apps/files_external/lib/config.php';
 
 OCP\App::registerAdmin('files_external', 'settings');
diff --git a/apps/files_external/lib/dropbox.php b/apps/files_external/lib/dropbox.php
new file mode 100755
index 00000000000..5e94277c6d4
--- /dev/null
+++ b/apps/files_external/lib/dropbox.php
@@ -0,0 +1,203 @@
+<?php
+
+/**
+* ownCloud
+*
+* @author Michael Gapczynski
+* @copyright 2012 Michael Gapczynski mtgap@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/>.
+*/
+
+require_once 'Dropbox/autoload.php';
+
+class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
+
+	private $dropbox;
+	private $metaData = array();
+
+	private static $tempFiles = array();
+
+	public function __construct($params) {
+		$oauth = new Dropbox_OAuth_Curl($params['app_key'], $params['app_secret']);
+		$oauth->setToken($params['token'], $params['token_secret']);
+		$this->dropbox = new Dropbox_API($oauth, 'dropbox');
+		
+	}
+
+	private function getMetaData($path, $list = false) {
+		if (!$list && isset($this->metaData[$path])) {
+			return $this->metaData[$path];
+		} else {
+			if ($list) {
+				$response = $this->dropbox->getMetaData($path);
+				if ($response && isset($response['contents'])) {
+					$contents = $response['contents'];
+					// Cache folder's contents
+					foreach ($contents as $file) {
+						$this->metaData[$path.'/'.basename($file['path'])] = $file;
+					}
+					unset($response['contents']);
+					$this->metaData[$path] = $response;
+				}
+				$this->metaData[$path] = $response;
+				// Return contents of folder only
+				return $contents;
+			} else {
+				try {
+					$response = $this->dropbox->getMetaData($path, 'false');
+					$this->metaData[$path] = $response;
+					return $response;
+				} catch (Exception $exception) {
+					return false;
+				}
+			}
+		}
+	}
+
+	public function mkdir($path) {
+		return $this->dropbox->createFolder($path);
+	}
+
+	public function rmdir($path) {
+		return $this->dropbox->delete($path);
+	}
+
+	public function opendir($path) {
+		if ($contents = $this->getMetaData($path, true)) {
+			$files = array();
+			foreach ($contents as $file) {
+				$files[] = basename($file['path']);
+			}
+			OC_FakeDirStream::$dirs['dropbox'] = $files;
+			return opendir('fakedir://dropbox');
+		}
+		return false;
+	}
+
+	public function stat($path) {
+		if ($metaData = $this->getMetaData($path)) {
+			$stat['size'] = $metaData['bytes'];
+			$stat['atime'] = time();
+			$stat['mtime'] = strtotime($metaData['modified']);
+			$stat['ctime'] = $stat['mtime'];
+			return $stat;
+		}
+		return false;
+	}
+
+	public function filetype($path) {
+		if ($path == '' || $path == '/') {
+			return 'dir';
+		} else if ($metaData = $this->getMetaData($path)) {
+			if ($metaData['is_dir'] == 'true') {
+				return 'dir';
+			} else {
+				return 'file';
+			}
+		}
+		return false;
+	}
+
+	public function is_readable($path) {
+		return true;
+	}
+
+	public function is_writable($path) {
+		return true;
+	}
+
+	public function file_exists($path) {
+		if ($path == '' || $path == '/') {
+			return true;
+		}
+		if ($this->getMetaData($path)) {
+			return true;
+		}
+		return false;
+	}
+
+	public function unlink($path) {
+		return $this->dropbox->delete($path);
+	}
+
+	public function fopen($path, $mode) {
+		switch ($mode) {
+			case 'r':
+			case 'rb':
+				$tmpFile = OC_Helper::tmpFile();
+				file_put_contents($tmpFile, $this->dropbox->getFile($path));
+				return fopen($tmpFile, 'r');
+			case 'w':
+			case 'wb':
+			case 'a':
+			case 'ab':
+			case 'r+':
+			case 'w+':
+			case 'wb+':
+			case 'a+':
+			case 'x':
+			case 'x+':
+			case 'c':
+			case 'c+':
+				if (strrpos($path, '.') !== false) {
+					$ext = substr($path, strrpos($path, '.'));
+				} else {
+					$ext = '';
+				}
+				$tmpFile = OC_Helper::tmpFile($ext);
+				OC_CloseStreamWrapper::$callBacks[$tmpFile] = array($this, 'writeBack');
+				if ($this->file_exists($path)) {
+					$source = $this->fopen($path, 'r');
+					file_put_contents($tmpFile, $source);
+				}
+				self::$tempFiles[$tmpFile] = $path;
+				return fopen('close://'.$tmpFile, $mode);
+		}
+		return false;
+	}
+
+	public function writeBack($tmpFile) {
+		if (isset(self::$tempFiles[$tmpFile])) {
+			$handle = fopen($tmpFile, 'r');
+			$response = $this->dropbox->putFile(self::$tempFiles[$tmpFile], $handle);
+			if ($response) {
+				unlink($tmpFile);
+			}
+		}
+	}
+
+	public function getMimeType($path) {
+		if ($this->filetype($path) == 'dir') {
+			return 'httpd/unix-directory';
+		} else if ($metaData = $this->getMetaData($path)) {
+			return $metaData['mime_type'];
+		}
+		return false;
+	}
+
+	public function free_space($path) {
+		if ($info = $this->dropbox->getAccountInfo()) {
+			return $info['quota_info']['quota'] - $info['quota_info']['normal'];
+		}
+		return false;
+	}
+
+	public function touch($path, $mtime = null) {
+		return false;
+	}
+
+}
+
+?>
\ No newline at end of file