allow plugins to cancel filesystem operations using the provided hooks
This commit is contained in:
Robin Appelman
parent
3062723c34
commit
300b8c06cf
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@ -29,10 +29,13 @@
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*
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* Hooks provided:
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* read(path)
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* write(path)
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* create(path) (when a file is created both, write and create will be emited)
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* delete(path)
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* rename(oldpath,newpath)
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* write(path, &run)
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* create(path, &run) (when a file is created, both create and write will be emited in that order)
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* delete(path, &run)
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* rename(oldpath,newpath, &run)
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* copy(oldpath,newpath, &run) (if the newpath doesn't exists yes, copy, create and write will be emited in that order)
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*
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* the &run parameter can be set to false to prevent the operation from occuring
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*/
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class OC_FILESYSTEM{
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static private $storages=array();
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@ -222,14 +225,23 @@ class OC_FILESYSTEM{
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static public function mkdir($path){
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$parent=substr($path,0,strrpos($path,'/'));
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if(self::canWrite($parent) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path));
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return $storage->mkdir(self::getInternalPath($path));
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$run=true;
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path, 'run' => &$run));
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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return $storage->mkdir(self::getInternalPath($path));
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}
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}
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}
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static public function rmdir($path){
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if(self::canWrite($path) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'delete', array( 'path' => $path));
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return $storage->rmdir(self::getInternalPath($path));
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$run=true;
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OC_HOOK::emit( 'OC_FILESYSTEM', 'delete', array( 'path' => $path, 'run' => &$run));
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if($run){
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return $storage->rmdir(self::getInternalPath($path));
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}
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}
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}
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static public function opendir($path){
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@ -319,55 +331,76 @@ class OC_FILESYSTEM{
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}
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static public function file_put_contents($path,$data){
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if(self::canWrite($path) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path));
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$run=true;
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if(!self::file_exists($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path));
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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return $storage->file_put_contents(self::getInternalPath($path),$data);
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}
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return $storage->file_put_contents(self::getInternalPath($path),$data);
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}
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}
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static public function unlink($path){
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if(self::canWrite($path) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'delete', array( 'path' => $path));
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return $storage->unlink(self::getInternalPath($path));
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$run=true;
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OC_HOOK::emit( 'OC_FILESYSTEM', 'delete', array( 'path' => $path, 'run' => &$run));
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if($run){
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return $storage->unlink(self::getInternalPath($path));
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}
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}
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}
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static public function rename($path1,$path2){
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if(self::canWrite($path1) and self::canWrite($path2)){
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$mp1=self::getMountPoint($path1);
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$mp2=self::getMountPoint($path2);
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if($mp1==$mp2){
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if($storage=self::getStorage($path1)){
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return $storage->rename(self::getInternalPath($path1),self::getInternalPath($path2));
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$run=true;
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OC_HOOK::emit( 'OC_FILESYSTEM', 'rename', array( 'oldpath' => $path1 ,'newpath'=>$path2, 'run' => &$run));
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if($run){
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$mp1=self::getMountPoint($path1);
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$mp2=self::getMountPoint($path2);
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if($mp1==$mp2){
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if($storage=self::getStorage($path1)){
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return $storage->rename(self::getInternalPath($path1),self::getInternalPath($path2));
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}
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}elseif($storage1=self::getStorage($path1) and $storage2=self::getStorage($path2)){
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$tmpFile=$storage1->toTmpFile(self::getInternalPath($path1));
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$result=$storage2->fromTmpFile(self::getInternalPath($path2));
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$storage1->unlink(self::getInternalPath($path1));
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return $result;
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}
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}elseif($storage1=self::getStorage($path1) and $storage2=self::getStorage($path2)){
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$tmpFile=$storage1->toTmpFile(self::getInternalPath($path1));
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$result=$storage2->fromTmpFile(self::getInternalPath($path2));
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$storage1->unlink(self::getInternalPath($path1));
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return $result;
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}
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OC_HOOK::emit( 'OC_FILESYSTEM', 'rename', array( 'oldpath' => $path1 ,'newpath'=>$path2));
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}
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}
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static public function copy($path1,$path2){
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if(self::canRead($path1) and self::canWrite($path2)){
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$mp1=self::getMountPoint($path1);
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$mp2=self::getMountPoint($path2);
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if($mp1==$mp2){
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if($storage=self::getStorage($path1)){
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return $storage->copy(self::getInternalPath($path1),self::getInternalPath($path2));
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}
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}elseif($storage1=self::getStorage($path1) and $storage2=self::getStorage($path2)){
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$tmpFile=$storage1->toTmpFile(self::getInternalPath($path1));
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return $storage2->fromTmpFile(self::getInternalPath($path2));
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$run=true;
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OC_HOOK::emit( 'OC_FILESYSTEM', 'copy', array( 'oldpath' => $path1 ,'newpath'=>$path2, 'run' => &$run));
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if($run and !self::file_exists($path2)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path2, 'run' => &$run));
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}
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path2, 'run' => &$run));
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}
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if($run){
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$mp1=self::getMountPoint($path1);
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$mp2=self::getMountPoint($path2);
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if($mp1==$mp2){
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if($storage=self::getStorage($path1)){
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return $storage->copy(self::getInternalPath($path1),self::getInternalPath($path2));
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}
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}elseif($storage1=self::getStorage($path1) and $storage2=self::getStorage($path2)){
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$tmpFile=$storage1->toTmpFile(self::getInternalPath($path1));
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return $storage2->fromTmpFile(self::getInternalPath($path2));
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}
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}
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path2));
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}
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}
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static public function fopen($path,$mode){
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$allowed=((strpos($path,'r')===false and strpos($path,'r+')!==false and self::canRead) or self::canWrite($path));
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if($allowed){
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if($storage=self::getStorage($path)){
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$run=true;
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switch($mode){
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case 'r':
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OC_HOOK::emit( 'OC_FILESYSTEM', 'read', array( 'path' => $path));
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@ -377,21 +410,27 @@ class OC_FILESYSTEM{
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case 'x+':
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case 'a+':
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OC_HOOK::emit( 'OC_FILESYSTEM', 'read', array( 'path' => $path));
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path));
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if(!self::file_exists($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path));
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}
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path, 'run' => &$run));
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}
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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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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path));
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if(!self::file_exists($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path));
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}
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path, 'run' => &$run));
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}
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break;
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}
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return $storage->fopen(self::getInternalPath($path),$mode);
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if($run){
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return $storage->fopen(self::getInternalPath($path),$mode);
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}
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}
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}
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}
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@ -403,20 +442,30 @@ class OC_FILESYSTEM{
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}
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static public function fromTmpFile($tmpFile,$path){
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if(self::canWrite($path) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path));
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$run=true;
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if(!self::file_exists($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path));
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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return $storage->fromTmpFile($tmpFile,self::getInternalPath($path));
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}
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return $storage->fromTmpFile($tmpFile,self::getInternalPath($path));
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}
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}
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static public function fromUploadedFile($tmpFile,$path){
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if(self::canWrite($path) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path));
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if(!self::file_exists($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path));
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$run=true;
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if($run and !self::file_exists($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'create', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'write', array( 'path' => $path, 'run' => &$run));
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}
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if($run){
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return $storage->fromUploadedFile($tmpFile,self::getInternalPath($path));
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}
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return $storage->fromUploadedFile($tmpFile,self::getInternalPath($path));
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}
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}
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static public function getMimeType($path){
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@ -426,8 +475,11 @@ class OC_FILESYSTEM{
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}
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static public function delTree($path){
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if(self::canWrite($path) and $storage=self::getStorage($path)){
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OC_HOOK::emit( 'OC_FILESYSTEM', 'delete', array( 'path' => $path));
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return $storage->delTree(self::getInternalPath($path));
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$run=true;
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OC_HOOK::emit( 'OC_FILESYSTEM', 'delete', array( 'path' => $path, 'run' => &$run));
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if($run){
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return $storage->delTree(self::getInternalPath($path));
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}
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}
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}
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static public function find($path){
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@ -475,10 +527,12 @@ class OC_FILESYSTEM{
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$fakeRootLength=strlen(self::$fakeRoot);
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foreach(self::$storages as $mountpoint=>$storage){
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$results=$storage->search($query);
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foreach($results as $result){
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$file=str_replace('//','/',$mountpoint.$result);
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$file=substr($file,$fakeRootLength);
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$files[]=$file;
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if(is_array($results)){
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foreach($results as $result){
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$file=str_replace('//','/',$mountpoint.$result);
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$file=substr($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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