Added the TemporaryFileFilter tree-class

Author: evert

Sabre/DAV/FilterTree.php

@@ -15,7 +15,7 @@
      * @author Evert Pot (http://www.rooftopsolutions.nl/) 
      * @license licence http://www.freebsd.org/copyright/license.html  BSD License (4 Clause)
      */
-    class Sabre_DAV_FilterTree extends Sabre_DAV_Tree {
+    abstract class Sabre_DAV_FilterTree extends Sabre_DAV_Tree {
 
         /**
          * subject 
@@ -32,7 +32,7 @@ class Sabre_DAV_FilterTree extends Sabre_DAV_Tree {
          */
         public function __construct(Sabre_DAV_Tree $subject) {
 
-            $this->tempDir = $tempDir;
+            $this->subject = $subject;
 
         }
 
@@ -144,7 +144,7 @@ public function move($sourcePath, $destinationPath) {
          */
         public function supportsLocks() {
 
-            return $this->subject->supportLocks();
+            return $this->subject->supportsLocks();
 
         }
 

Sabre/DAV/TemporaryFileFilter.php

@@ -0,0 +1,124 @@
+<?php
+
+    require_once 'Sabre/DAV/FilterTree.php';
+
+    class Sabre_DAV_TemporaryFileFilter extends Sabre_DAV_FilterTree {
+
+        private $dataDir = null;
+
+        const FINDER_FORK = 
+            'H4sIAAAAAAAAA+3XMWsCMRQH8Beh2Fu0OHQqR+Yicji6FV0cRKiHlG7xfNJwuSTkIuK36mdy6rfQiGepwtHNQd6PhHCP9w+5bIGH5yY0ACYi49MZ/+CVYw2iMPsAre+whu/WDoDFcPYENd7S9D0snVMCfsL8vGppVPXXMDJT9IS1CnsFerEUXgzyyWjssRiXs8wh6qGwfu3wFGVhX0gAuvW5i1S6tSG5sEqWPkmix2oXVp2EXZ0sOnfON1Ivzea//nbdLRBCCCGEEEIIuTUGf55tcfolS+6wNGuXIV8Zl3OpPWovjRZKbbnClecLJXR+fAffgcv//y2/QLzfHwDNa116ABAAAA==';
+
+        public function setDataDir($path) {
+
+            $this->dataDir = $path;
+
+        }
+
+        public function isTempFile($path) {
+
+            $tempPath = basename($path);
+            
+            $tempFiles = array(
+                '/^._(.*)$/',      // OS/X resource forks
+                '/^.DS_Store$/',   // OS/X custom folder settings
+                '/^desktop.ini$/', // Windows custom folder settings
+                '/^Thumbs.db$/',   // Windows thumbnail cache
+                '/^.(.*).swp$/',   // ViM temporary files
+            );
+
+            $match = false;
+            foreach($tempFiles as $tempFile) {
+
+                if (preg_match($tempFile,$tempPath)) $match = true; 
+
+            }
+
+            if ($match) {
+                $dataDir = (is_null($this->dataDir)?ini_get('session.save_path').'/sabredav/':$this->dataDir);
+                return $dataDir . '/sabredav_' . md5($path) . '.tempfile';
+            } else {
+                return false;
+            }
+
+        }
+
+        public function put($path,$data) {
+
+            if ($tempPath = $this->isTempFile($path)) {
+
+                file_put_contents($tempPath,$data);
+
+            } else return parent::put($path,$data);
+
+        }
+
+        public function createFile($path,$data) {
+
+            if ($tempPath = $this->isTempFile($path)) {
+
+                file_put_contents($tempPath,$data);
+
+            } else return parent::createFile($path,$data);
+
+        }
+
+        public function get($path) {
+
+            if ($tempPath = $this->isTempFile($path)) {
+
+                if (!file_exists($tempPath)) {
+                    if (strpos(basename($path),'._')===0) echo gzdecode(base64_decode(self::FINDER_FORK));
+                    else throw new Sabre_DAV_FileNotFoundException();
+                } else { 
+                    return file_get_contents($tempPath);
+                }
+
+            } else return parent::get($path);
+
+        }
+        
+        public function delete($path) {
+
+            if ($tempPath = $this->isTempFile($path)) {
+                
+                return(file_exists($tempPath) && unlink($tempPath));
+
+            } else return parent::delete($path);
+
+        }
+
+        public function getNodeInfo($path,$depth=0) {
+
+            if (($tempPath = $this->isTempFile($path)) && !$depth) {
+
+                //echo $tempPath;
+                if (!file_exists($tempPath)) {
+                    if (strpos(basename($path),'._')===0) {
+                        return array(array(
+                            'name'         => '',
+                            'type'         => Sabre_DAV_Server::NODE_FILE,
+                            'lastmodified' => filemtime(__FILE__),
+                            'size'         => 4096, 
+                        ));
+                        
+                    } else {
+                        throw new Sabre_DAV_FileNotFoundException();
+                    }
+                }
+                $props = array(
+                    'name'         => '',
+                    'type'         => Sabre_DAV_Server::NODE_FILE,
+                    'lastmodified' => filemtime($tempPath),
+                    'size'         => filesize($tempPath), 
+                );
+
+                return array($props);
+
+            } else return parent::getNodeInfo($path,$depth);
+
+        }
+
+    }
+
+?>