1 files changed, 277 insertions, 277 deletions
diff --git a/apps/files_versions/lib/versions.php b/apps/files_versions/lib/versions.php
index 8f807187467..dc83ab12af0 100644
--- a/apps/files_versions/lib/versions.php
+++ b/apps/files_versions/lib/versions.php
@@ -1,278 +1,278 @@
-<?php
-/**
- * Copyright (c) 2012 Frank Karlitschek <frank@owncloud.org>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-
-/**
- * Versions
- *
- * A class to handle the versioning of files.
- */
-
-namespace OCA_Versions;
-
-class Storage {
-
-
-	// config.php configuration:
-	//   - files_versions
-	//   - files_versionsfolder
-	//   - files_versionsblacklist
-	//   - files_versionsmaxfilesize
-	//   - files_versionsinterval
-	//   - files_versionmaxversions
-	//
-	// todo:
-	//   - finish porting to OC_FilesystemView to enable network transparency
-	//   - add transparent compression. first test if it´s worth it.
-
-	const DEFAULTENABLED=true;
-	const DEFAULTBLACKLIST='avi mp3 mpg mp4 ctmp';
-	const DEFAULTMAXFILESIZE=1048576; // 10MB
-	const DEFAULTMININTERVAL=60; // 1 min
-	const DEFAULTMAXVERSIONS=50;
-
-	private static function getUidAndFilename($filename)
-	{
-		if (\OCP\App::isEnabled('files_sharing')
-		    && substr($filename, 0, 7) == '/Shared'
-		    && $source = \OCP\Share::getItemSharedWith('file',
-					substr($filename, 7),
-					\OC_Share_Backend_File::FORMAT_SHARED_STORAGE)) {
-			$filename = $source['path'];
-			$pos = strpos($filename, '/files', 1);
-			$uid = substr($filename, 1, $pos - 1);
-			$filename = substr($filename, $pos + 6);
-		} else {
-			$uid = \OCP\User::getUser();
-		}
-		return array($uid, $filename);
-	}
-
-	/**
-	 * store a new version of a file.
-	 */
-	public function store($filename) {
-		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
-			list($uid, $filename) = self::getUidAndFilename($filename);
-			$files_view = new \OC_FilesystemView('/'.\OCP\User::getUser() .'/files');
-			$users_view = new \OC_FilesystemView('/'.\OCP\User::getUser());
-
-			//check if source file already exist as version to avoid recursions.
-			// todo does this check work?
-			if ($users_view->file_exists($filename)) {
-				return false;
-			}
-
-			// check if filename is a directory
-			if($files_view->is_dir($filename)) {
-				return false;
-			}
-
-			// check filetype blacklist
-			$blacklist=explode(' ', \OCP\Config::getSystemValue('files_versionsblacklist', Storage::DEFAULTBLACKLIST));
-			foreach($blacklist as $bl) {
-				$parts=explode('.', $filename);
-				$ext=end($parts);
-				if(strtolower($ext)==$bl) {
-					return false;
-				}
-			}
-			// we should have a source file to work with
-			if (!$files_view->file_exists($filename)) {
-				return false;
-			}
-
-			// check filesize
-			if($files_view->filesize($filename)>\OCP\Config::getSystemValue('files_versionsmaxfilesize', Storage::DEFAULTMAXFILESIZE)) {
-				return false;
-			}
-
-
-			// check mininterval if the file is being modified by the owner (all shared files should be versioned despite mininterval)
-			if ($uid == \OCP\User::getUser()) {
-				$versions_fileview = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files_versions');
-				$versionsName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
-				$versionsFolderName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath('');
-				$matches=glob($versionsName.'.v*');
-				sort($matches);
-				$parts=explode('.v', end($matches));
-				if((end($parts)+Storage::DEFAULTMININTERVAL)>time()) {
-					return false;
-				}
-			}
-
-
-			// create all parent folders
-			$info=pathinfo($filename);
-			if(!file_exists($versionsFolderName.'/'.$info['dirname'])) {
-				mkdir($versionsFolderName.'/'.$info['dirname'], 0750, true);
-			}
-
-			// store a new version of a file
-			$users_view->copy('files'.$filename, 'files_versions'.$filename.'.v'.time());
-
-			// expire old revisions if necessary
-			Storage::expire($filename);
-		}
-	}
-
-
-	/**
-	 * rollback to an old version of a file.
-	 */
-	public static function rollback($filename, $revision) {
-
-		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
-			list($uid, $filename) = self::getUidAndFilename($filename);
-			$users_view = new \OC_FilesystemView('/'.\OCP\User::getUser());
-
-			// rollback
-			if( @$users_view->copy('files_versions'.$filename.'.v'.$revision, 'files'.$filename) ) {
-
-				return true;
-
-			}else{
-
-				return false;
-
-			}
-
-		}
-
-	}
-
-	/**
-	 * check if old versions of a file exist.
-	 */
-	public static function isversioned($filename) {
-		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
-			list($uid, $filename) = self::getUidAndFilename($filename);
-			$versions_fileview = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files_versions');
-
-			$versionsName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
-
-			// check for old versions
-			$matches=glob($versionsName.'.v*');
-			if(count($matches)>0) {
-				return true;
-			}else{
-				return false;
-			}
-		}else{
-			return(false);
-		}
-	}
-
-
-
-	/**
-	 * @brief get a list of all available versions of a file in descending chronological order
-	 * @param $filename file to find versions of, relative to the user files dir
-	 * @param $count number of versions to return
-	 * @returns array
-	 */
-	public static function getVersions( $filename, $count = 0 ) {
-		if( \OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true' ) {
-			list($uid, $filename) = self::getUidAndFilename($filename);
-			$versions_fileview = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files_versions');
-
-			$versionsName = \OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
-			$versions = array();
-			// fetch for old versions
-			$matches = glob( $versionsName.'.v*' );
-
-			sort( $matches );
-
-			$i = 0;
-
-			$files_view = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files');
-			$local_file = $files_view->getLocalFile($filename);
-			foreach( $matches as $ma ) {
-
-				$i++;
-				$versions[$i]['cur'] = 0;
-				$parts = explode( '.v', $ma );
-				$versions[$i]['version'] = ( end( $parts ) );
-
-				// if file with modified date exists, flag it in array as currently enabled version
-				( \md5_file( $ma ) == \md5_file( $local_file ) ? $versions[$i]['fileMatch'] = 1 : $versions[$i]['fileMatch'] = 0 );
-
-			}
-
-			$versions = array_reverse( $versions );
-
-			foreach( $versions as $key => $value ) {
-
-				// flag the first matched file in array (which will have latest modification date) as current version
-				if ( $value['fileMatch'] ) {
-
-					$value['cur'] = 1;
-					break;
-
-				}
-
-			}
-
-			$versions = array_reverse( $versions );
-
-			// only show the newest commits
-			if( $count != 0 and ( count( $versions )>$count ) ) {
-
-				$versions = array_slice( $versions, count( $versions ) - $count );
-
-			}
-
-			return( $versions );
-
-
-		} else {
-
-			// if versioning isn't enabled then return an empty array
-			return( array() );
-
-		}
-
-	}
-
-	/**
-	 * @brief Erase a file's versions which exceed the set quota
-	 */
-	public static function expire($filename) {
-		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
-			list($uid, $filename) = self::getUidAndFilename($filename);
-			$versions_fileview = new \OC_FilesystemView('/'.$uid.'/files_versions');
-
-			$versionsName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
-
-			// check for old versions
-			$matches = glob( $versionsName.'.v*' );
-
-			if( count( $matches ) > \OCP\Config::getSystemValue( 'files_versionmaxversions', Storage::DEFAULTMAXVERSIONS ) ) {
-
-				$numberToDelete = count($matches) - \OCP\Config::getSystemValue( 'files_versionmaxversions', Storage::DEFAULTMAXVERSIONS );
-
-				// delete old versions of a file
-				$deleteItems = array_slice( $matches, 0, $numberToDelete );
-
-				foreach( $deleteItems as $de ) {
-
-					unlink( $versionsName.'.v'.$de );
-
-				}
-			}
-		}
-	}
-
-	/**
-	 * @brief Erase all old versions of all user files
-	 * @return true/false
-	 */
-	public function expireAll() {
-		$view = \OCP\Files::getStorage('files_versions');
-		return $view->deleteAll('', true);
-	}
+<?php
+/**
+ * Copyright (c) 2012 Frank Karlitschek <frank@owncloud.org>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+/**
+ * Versions
+ *
+ * A class to handle the versioning of files.
+ */
+
+namespace OCA_Versions;
+
+class Storage {
+
+
+	// config.php configuration:
+	//   - files_versions
+	//   - files_versionsfolder
+	//   - files_versionsblacklist
+	//   - files_versionsmaxfilesize
+	//   - files_versionsinterval
+	//   - files_versionmaxversions
+	//
+	// todo:
+	//   - finish porting to OC_FilesystemView to enable network transparency
+	//   - add transparent compression. first test if it´s worth it.
+
+	const DEFAULTENABLED=true;
+	const DEFAULTBLACKLIST='avi mp3 mpg mp4 ctmp';
+	const DEFAULTMAXFILESIZE=1048576; // 10MB
+	const DEFAULTMININTERVAL=60; // 1 min
+	const DEFAULTMAXVERSIONS=50;
+
+	private static function getUidAndFilename($filename)
+	{
+		if (\OCP\App::isEnabled('files_sharing')
+		    && substr($filename, 0, 7) == '/Shared'
+		    && $source = \OCP\Share::getItemSharedWith('file',
+					substr($filename, 7),
+					\OC_Share_Backend_File::FORMAT_SHARED_STORAGE)) {
+			$filename = $source['path'];
+			$pos = strpos($filename, '/files', 1);
+			$uid = substr($filename, 1, $pos - 1);
+			$filename = substr($filename, $pos + 6);
+		} else {
+			$uid = \OCP\User::getUser();
+		}
+		return array($uid, $filename);
+	}
+
+	/**
+	 * store a new version of a file.
+	 */
+	public function store($filename) {
+		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			list($uid, $filename) = self::getUidAndFilename($filename);
+			$files_view = new \OC_FilesystemView('/'.\OCP\User::getUser() .'/files');
+			$users_view = new \OC_FilesystemView('/'.\OCP\User::getUser());
+
+			//check if source file already exist as version to avoid recursions.
+			// todo does this check work?
+			if ($users_view->file_exists($filename)) {
+				return false;
+			}
+
+			// check if filename is a directory
+			if($files_view->is_dir($filename)) {
+				return false;
+			}
+
+			// check filetype blacklist
+			$blacklist=explode(' ', \OCP\Config::getSystemValue('files_versionsblacklist', Storage::DEFAULTBLACKLIST));
+			foreach($blacklist as $bl) {
+				$parts=explode('.', $filename);
+				$ext=end($parts);
+				if(strtolower($ext)==$bl) {
+					return false;
+				}
+			}
+			// we should have a source file to work with
+			if (!$files_view->file_exists($filename)) {
+				return false;
+			}
+
+			// check filesize
+			if($files_view->filesize($filename)>\OCP\Config::getSystemValue('files_versionsmaxfilesize', Storage::DEFAULTMAXFILESIZE)) {
+				return false;
+			}
+
+
+			// check mininterval if the file is being modified by the owner (all shared files should be versioned despite mininterval)
+			if ($uid == \OCP\User::getUser()) {
+				$versions_fileview = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files_versions');
+				$versionsName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
+				$versionsFolderName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath('');
+				$matches=glob($versionsName.'.v*');
+				sort($matches);
+				$parts=explode('.v', end($matches));
+				if((end($parts)+Storage::DEFAULTMININTERVAL)>time()) {
+					return false;
+				}
+			}
+
+
+			// create all parent folders
+			$info=pathinfo($filename);
+			if(!file_exists($versionsFolderName.'/'.$info['dirname'])) {
+				mkdir($versionsFolderName.'/'.$info['dirname'], 0750, true);
+			}
+
+			// store a new version of a file
+			$users_view->copy('files'.$filename, 'files_versions'.$filename.'.v'.time());
+
+			// expire old revisions if necessary
+			Storage::expire($filename);
+		}
+	}
+
+
+	/**
+	 * rollback to an old version of a file.
+	 */
+	public static function rollback($filename, $revision) {
+
+		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			list($uid, $filename) = self::getUidAndFilename($filename);
+			$users_view = new \OC_FilesystemView('/'.\OCP\User::getUser());
+
+			// rollback
+			if( @$users_view->copy('files_versions'.$filename.'.v'.$revision, 'files'.$filename) ) {
+
+				return true;
+
+			}else{
+
+				return false;
+
+			}
+
+		}
+
+	}
+
+	/**
+	 * check if old versions of a file exist.
+	 */
+	public static function isversioned($filename) {
+		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			list($uid, $filename) = self::getUidAndFilename($filename);
+			$versions_fileview = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files_versions');
+
+			$versionsName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
+
+			// check for old versions
+			$matches=glob($versionsName.'.v*');
+			if(count($matches)>0) {
+				return true;
+			}else{
+				return false;
+			}
+		}else{
+			return(false);
+		}
+	}
+
+
+
+	/**
+	 * @brief get a list of all available versions of a file in descending chronological order
+	 * @param $filename file to find versions of, relative to the user files dir
+	 * @param $count number of versions to return
+	 * @returns array
+	 */
+	public static function getVersions( $filename, $count = 0 ) {
+		if( \OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true' ) {
+			list($uid, $filename) = self::getUidAndFilename($filename);
+			$versions_fileview = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files_versions');
+
+			$versionsName = \OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
+			$versions = array();
+			// fetch for old versions
+			$matches = glob( $versionsName.'.v*' );
+
+			sort( $matches );
+
+			$i = 0;
+
+			$files_view = new \OC_FilesystemView('/'.\OCP\User::getUser().'/files');
+			$local_file = $files_view->getLocalFile($filename);
+			foreach( $matches as $ma ) {
+
+				$i++;
+				$versions[$i]['cur'] = 0;
+				$parts = explode( '.v', $ma );
+				$versions[$i]['version'] = ( end( $parts ) );
+
+				// if file with modified date exists, flag it in array as currently enabled version
+				( \md5_file( $ma ) == \md5_file( $local_file ) ? $versions[$i]['fileMatch'] = 1 : $versions[$i]['fileMatch'] = 0 );
+
+			}
+
+			$versions = array_reverse( $versions );
+
+			foreach( $versions as $key => $value ) {
+
+				// flag the first matched file in array (which will have latest modification date) as current version
+				if ( $value['fileMatch'] ) {
+
+					$value['cur'] = 1;
+					break;
+
+				}
+
+			}
+
+			$versions = array_reverse( $versions );
+
+			// only show the newest commits
+			if( $count != 0 and ( count( $versions )>$count ) ) {
+
+				$versions = array_slice( $versions, count( $versions ) - $count );
+
+			}
+
+			return( $versions );
+
+
+		} else {
+
+			// if versioning isn't enabled then return an empty array
+			return( array() );
+
+		}
+
+	}
+
+	/**
+	 * @brief Erase a file's versions which exceed the set quota
+	 */
+	public static function expire($filename) {
+		if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			list($uid, $filename) = self::getUidAndFilename($filename);
+			$versions_fileview = new \OC_FilesystemView('/'.$uid.'/files_versions');
+
+			$versionsName=\OCP\Config::getSystemValue('datadirectory').$versions_fileview->getAbsolutePath($filename);
+
+			// check for old versions
+			$matches = glob( $versionsName.'.v*' );
+
+			if( count( $matches ) > \OCP\Config::getSystemValue( 'files_versionmaxversions', Storage::DEFAULTMAXVERSIONS ) ) {
+
+				$numberToDelete = count($matches) - \OCP\Config::getSystemValue( 'files_versionmaxversions', Storage::DEFAULTMAXVERSIONS );
+
+				// delete old versions of a file
+				$deleteItems = array_slice( $matches, 0, $numberToDelete );
+
+				foreach( $deleteItems as $de ) {
+
+					unlink( $versionsName.'.v'.$de );
+
+				}
+			}
+		}
+	}
+
+	/**
+	 * @brief Erase all old versions of all user files
+	 * @return true/false
+	 */
+	public function expireAll() {
+		$view = \OCP\Files::getStorage('files_versions');
+		return $view->deleteAll('', true);
+	}
 }