Robin Appelman
14 years ago
3 changed files with 434 additions and 248 deletions
@ -0,0 +1,335 @@ |
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<?php |
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|
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/** |
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* ownCloud |
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* |
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* @author Frank Karlitschek |
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE |
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* License as published by the Free Software Foundation; either |
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* version 3 of the License, or any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public |
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* License along with this library. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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|
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class OC_FilesystemView { |
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private $fakeRoot=''; |
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|
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public function __construct($root){ |
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$this->fakeRoot=$root; |
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} |
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|
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public function getAbsolutePath($path){ |
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if(!$path){ |
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$path='/'; |
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} |
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if(substr($path,0,1)!=='/'){ |
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$path='/'.$path; |
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} |
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return $this->fakeRoot.$path; |
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} |
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|
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|
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/** |
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* change the root to a fake toor |
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* @param string fakeRoot |
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* @return bool |
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*/ |
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public function chroot($fakeRoot){ |
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if(!$fakeRoot==''){ |
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if($fakeRoot[0]!=='/'){ |
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$fakeRoot='/'.$fakeRoot; |
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} |
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} |
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$this->fakeRoot=$fakeRoot; |
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} |
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|
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/** |
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* get the fake root |
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* @return string |
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*/ |
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public function getRoot(){ |
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return $this->fakeRoot; |
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} |
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|
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/** |
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* get the part of the path relative to the mountpoint of the storage it's stored in |
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* @param string path |
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* @return bool |
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*/ |
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public function getInternalPath($path){ |
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return OC_Filesystem::getInternalPath($this->getAbsolutePath($path)); |
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} |
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/** |
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* get the storage object for a path |
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* @param string path |
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* @return OC_Filestorage |
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*/ |
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public function getStorage($path){ |
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return OC_Filesystem::getStorage($this->getAbsolutePath($path)); |
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} |
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|
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/** |
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* get the mountpoint of the storage object for a path |
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( note: because a storage is not always mounted inside the fakeroot, the returned mountpoint is relative to the absolute root of the filesystem and doesn't take the chroot into account |
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* |
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* @param string path |
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* @return string |
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*/ |
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public function getMountPoint($path){ |
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return OC_Filesystem::getMountPoint($this->getAbsolutePath($path)); |
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} |
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|
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/** |
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* return the path to a local version of the file |
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* we need this because we can't know if a file is stored local or not from outside the filestorage and for some purposes a local file is needed |
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* @param string path |
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* @return string |
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*/ |
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public function getLocalFile($path){ |
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$parent=substr($path,0,strrpos($path,'/')); |
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if(OC_Filesystem::isValidPath($parent) and $storage=$this->getStorage($path)){ |
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return $storage->getLocalFile($this->getInternalPath($path)); |
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} |
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} |
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|
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/** |
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* following functions are equivilent to their php buildin equivilents for arguments/return values. |
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*/ |
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public function mkdir($path){ |
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return $this->basicOperation('mkdir',$path,array('create','write')); |
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} |
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public function rmdir($path){ |
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return $this->basicOperation('rmdir',$path,array('delete')); |
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} |
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public function opendir($path){ |
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return $this->basicOperation('opendir',$path,array('read')); |
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} |
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public function is_dir($path){ |
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if($path=='/'){ |
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return true; |
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} |
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return $this->basicOperation('is_dir',$path); |
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} |
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public function is_file($path){ |
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if($path=='/'){ |
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return false; |
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} |
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return $this->basicOperation('is_file',$path); |
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} |
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public function stat($path){ |
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return $this->basicOperation('stat',$path); |
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} |
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public function filetype($path){ |
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return $this->basicOperation('filetype',$path); |
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} |
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public function filesize($path){ |
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return $this->basicOperation('filesize',$path); |
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} |
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public function readfile($path){ |
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return $this->basicOperation('readfile',$path,array('read')); |
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} |
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public function is_readable($path){ |
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return $this->basicOperation('is_readable',$path); |
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} |
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public function is_writeable($path){ |
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return $this->basicOperation('is_writeable',$path); |
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} |
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public function file_exists($path){ |
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if($path=='/'){ |
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return true; |
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} |
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return $this->basicOperation('file_exists',$path); |
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} |
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public function filectime($path){ |
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return $this->basicOperation('filectime',$path); |
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} |
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public function filemtime($path){ |
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return $this->basicOperation('filemtime',$path); |
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} |
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public function file_get_contents($path){ |
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return $this->basicOperation('file_get_contents',$path,array('read')); |
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} |
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public function file_put_contents($path,$data){ |
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return $this->basicOperation('file_put_contents',$path,array('create','write'),$data); |
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} |
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public function unlink($path){ |
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return $this->basicOperation('unlink',$path,array('delete')); |
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} |
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public function rename($path1,$path2){ |
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if(OC_FileProxy::runPreProxies('rename',$path1,$path2) and $this->is_writeable($path1) and OC_Filesystem::isValidPath($path2)){ |
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$run=true; |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_rename, array( OC_Filesystem::signal_param_oldpath => $path1 , OC_Filesystem::signal_param_newpath=>$path2, OC_Filesystem::signal_param_run => &$run)); |
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if($run){ |
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$mp1=$this->getMountPoint($path1); |
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$mp2=$this->getMountPoint($path2); |
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if($mp1==$mp2){ |
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if($storage=$this->getStorage($path1)){ |
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$result=$storage->rename($this->getInternalPath($path1),$this->getInternalPath($path2)); |
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} |
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}elseif($storage1=$this->getStorage($path1) and $storage2=$this->getStorage($path2)){ |
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$tmpFile=$storage1->toTmpFile($this->getInternalPath($path1)); |
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$result=$storage2->fromTmpFile($tmpFile,$this->getInternalPath($path2)); |
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$storage1->unlink($this->getInternalPath($path1)); |
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} |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_rename, array( OC_Filesystem::signal_param_oldpath => $path1, OC_Filesystem::signal_param_newpath=>$path2)); |
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return $result; |
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} |
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} |
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} |
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public function copy($path1,$path2){ |
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if(OC_FileProxy::runPreProxies('copy',$path1,$path2) and $this->is_readable($path1) and OC_Filesystem::isValidPath($path2)){ |
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$run=true; |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_copy, array( OC_Filesystem::signal_param_oldpath => $path1 , OC_Filesystem::signal_param_newpath=>$path2, OC_Filesystem::signal_param_run => &$run)); |
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$exists=$this->file_exists($path2); |
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if($run and !$exists){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_create, array( OC_Filesystem::signal_param_path => $path2, OC_Filesystem::signal_param_run => &$run)); |
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} |
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if($run){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_write, array( OC_Filesystem::signal_param_path => $path2, OC_Filesystem::signal_param_run => &$run)); |
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} |
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if($run){ |
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$mp1=$this->getMountPoint($path1); |
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$mp2=$this->getMountPoint($path2); |
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if($mp1==$mp2){ |
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if($storage=$this->getStorage($path1)){ |
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$result=$storage->copy($this->getInternalPath($path1),$this->getInternalPath($path2)); |
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} |
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}elseif($storage1=$this->getStorage($path1) and $storage2=$this->getStorage($path2)){ |
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$tmpFile=$storage1->toTmpFile($this->getInternalPath($path1)); |
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$result=$storage2->fromTmpFile($tmpFile,$this->getInternalPath($path2)); |
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} |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_copy, array( OC_Filesystem::signal_param_oldpath => $path1 , OC_Filesystem::signal_param_newpath=>$path2)); |
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if(!$exists){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_create, array( OC_Filesystem::signal_param_path => $path2)); |
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} |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_write, array( OC_Filesystem::signal_param_path => $path2)); |
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return $result; |
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} |
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} |
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} |
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public function fopen($path,$mode){ |
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$hooks=array(); |
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switch($mode){ |
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case 'r': |
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$hooks[]='read'; |
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break; |
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case 'r+': |
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case 'w+': |
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case 'x+': |
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case 'a+': |
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$hooks[]='read'; |
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$hooks[]='write'; |
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break; |
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case 'w': |
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case 'x': |
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case 'a': |
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$hooks[]='write'; |
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break; |
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default: |
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OC_Log::write('core','invalid mode ('.$mode.') for '.$path,OC_Log::ERROR); |
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} |
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|
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return $this->basicOperation('fopen',$path,$hooks,$mode); |
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} |
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public function toTmpFile($path){ |
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if(OC_FileProxy::runPreProxies('toTmpFile',$path) and OC_Filesystem::isValidPath($path) and $storage=$this->getStorage($path)){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_read, array( OC_Filesystem::signal_param_path => $path)); |
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return $storage->toTmpFile($this->getInternalPath($path)); |
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} |
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} |
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public function fromTmpFile($tmpFile,$path){ |
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if(OC_FileProxy::runPreProxies('copy',$tmpFile,$path) and OC_Filesystem::isValidPath($path) and $storage=$this->getStorage($path)){ |
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$run=true; |
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$exists=$this->file_exists($path); |
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if(!$exists){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_create, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run)); |
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} |
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if($run){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_write, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run)); |
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} |
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if($run){ |
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$result=$storage->fromTmpFile($tmpFile,$this->getInternalPath($path)); |
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if(!$exists){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_create, array( OC_Filesystem::signal_param_path => $path)); |
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} |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_write, array( OC_Filesystem::signal_param_path => $path)); |
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return $result; |
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} |
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} |
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} |
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|
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public function getMimeType($path){ |
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return $this->basicOperation('getMimeType',$path); |
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} |
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public function hash($type,$path){ |
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return $this->basicOperation('hash',$path,array('read')); |
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} |
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|
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public function free_space($path='/'){ |
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return $this->basicOperation('free_space',$path); |
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} |
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|
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public function search($query){ |
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$files=array(); |
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$fakeRoot=$this->$fakeRoot; |
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$fakeRootLength=strlen($fakeRoot); |
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$results=OC_FileCache::search($query); |
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if(is_array($results)){ |
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foreach($results as $result){ |
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$file=str_replace('//','/',$mountpoint.$result); |
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if(substr($file,0,$fakeRootLength)==$fakeRoot){ |
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$file=substr($file,$fakeRootLength); |
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$files[]=$file; |
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} |
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} |
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} |
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return $files; |
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} |
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|
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/** |
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* abstraction for running most basic operations |
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* @param string $operation |
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* @param string #path
|
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* @param array (optional) hooks |
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* @param mixed (optional) $extraParam |
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* @return mixed |
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*/ |
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private function basicOperation($operation,$path,$hooks=array(),$extraParam=null){ |
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if(OC_FileProxy::runPreProxies($operation,$path, $extraParam) and OC_Filesystem::isValidPath($path) and $storage=$this->getStorage($path)){ |
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$interalPath=$this->getInternalPath($path); |
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$run=true; |
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foreach($hooks as $hook){ |
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if($hook!='read'){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, $hook, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run)); |
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}else{ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, $hook, array( OC_Filesystem::signal_param_path => $path)); |
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} |
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} |
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if($run){ |
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if($extraParam){ |
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$result=$storage->$operation($interalPath,$extraParam); |
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}else{ |
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$result=$storage->$operation($interalPath); |
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} |
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$result=OC_FileProxy::runPostProxies($operation,$path,$result); |
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foreach($hooks as $hook){ |
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if($hook!='read'){ |
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OC_Hook::emit( OC_Filesystem::CLASSNAME, 'post_'.$hook, array( OC_Filesystem::signal_param_path => $path)); |
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} |
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} |
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return $result; |
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} |
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} |
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return null; |
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} |
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} |
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