start implementing a solution to fix broken etags for shared files

lib/connector/sabre/node.php

@@ -148,25 +148,38 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	 * @return bool|array
 	 */
 	public function updateProperties($properties) {
+		// get source path of shared files
+		if (!strncmp($this->path, '/Shared/', 8)) {
+			$source = OC_Filestorage_Shared::getSourcePath(str_replace('/Shared/', '', $this->path));
+			$parts = explode('/', $source, 4);
+			$user =  $parts[1];
+			$path = '/'.$parts[3];
+		} else {
+			$user = OC_User::getUser();
+			$path = $this->path;
+		}
+		
 		$existing = $this->getProperties(array());
 		foreach($properties as $propertyName => $propertyValue) {
 			// If it was null, we need to delete the property
 			if (is_null($propertyValue)) {
 				if(array_key_exists( $propertyName, $existing )) {
 					$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
-					$query->execute( array( OC_User::getUser(), $this->path, $propertyName ));
+					$query->execute( array( $user, $path, $propertyName ));
 				}
 			}
 			else {
 				if( strcmp( $propertyName, self::LASTMODIFIED_PROPERTYNAME) === 0 ) {
+					error_log("propertyName: " . $propertyName);
 					$this->touch($propertyValue);
 				} else {
+					error_log("update/insert property: user: $user; path: $path");
 					if(!array_key_exists( $propertyName, $existing )) {
 						$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties` (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
-						$query->execute( array( OC_User::getUser(), $this->path, $propertyName,$propertyValue ));
+						$query->execute( array( $user, $path, $propertyName, $propertyValue ));
 					} else {
 						$query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertyvalue` = ? WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
-						$query->execute( array( $propertyValue,OC_User::getUser(), $this->path, $propertyName ));
+						$query->execute( array( $propertyValue, $user, $path, $propertyName ));
 					}
 				}
 			}
@@ -188,6 +201,7 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	 * @return array
 	 */
 	public function getProperties($properties) {
+		//TODO: Shared files?!?
 		if (is_null($this->property_cache)) {
 			$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ?' );
 			$result = $query->execute( array( OC_User::getUser(), $this->path ));
@@ -234,9 +248,19 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 		if (empty($tag)) {
 			return null;
 		}
+		
+		if (!strncmp($path, '/Shared/', 8)) {
+			$source = OC_Filestorage_Shared::getSourcePath(str_replace('/Shared/', '', $path));
+			$parts = explode('/', $source, 4);
+			$user =  $parts[1];
+			$path = '/'.$parts[3];
+		} else {
+			$user = OC_User::getUser();
+		}
+		
 		$etag = '"'.$tag.'"';
 		$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties` (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
-		$query->execute( array( OC_User::getUser(), $path, self::GETETAG_PROPERTYNAME, $etag ));
+		$query->execute( array( $user, $path, self::GETETAG_PROPERTYNAME, $etag ));
 		return $etag;
 	}
 
@@ -246,6 +270,7 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	 */
 	static public function removeETagPropertyForPath($path) {
 		// remove tags from this and parent paths
+		//TODO Shared Files?!?
 		$paths = array();
 		while ($path != '/' && $path != '.' && $path != '' && $path != '\\') {
 			$paths[] = $path;