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authorAleksander Machniak <alec@alec.pl>2013-05-24 12:01:21 (GMT)
committerAleksander Machniak <alec@alec.pl>2013-05-24 12:02:15 (GMT)
commit6219efe930d3da306222cff62a10e191625e9526 (patch)
treeb0f2415c62ebbef095eea5212157156457d8f56d /lib/Kolab/DAV/File.php
parent1eac719d26a9a3443b2c00abc146a869e0801fe1 (diff)
downloadiRony-6219efe930d3da306222cff62a10e191625e9526.tar.gz
Implemented webDAV access to Kolab files (Chwala)
Diffstat (limited to 'lib/Kolab/DAV/File.php')
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1 files changed, 158 insertions, 0 deletions
diff --git a/lib/Kolab/DAV/File.php b/lib/Kolab/DAV/File.php
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+<?php
+
+/**
+ * SabreDAV File Backend implementation for Kolab.
+ *
+ * @author Aleksander Machniak <machniak@kolabsys.com>
+ *
+ * Copyright (C) 2013, Kolab Systems AG <contact@kolabsys.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Kolab\DAV;
+
+use \rcube;
+use \Exception;
+
+/**
+ * File class
+ */
+class File extends Node implements \Sabre\DAV\IFile
+{
+
+ /**
+ * Updates the data
+ *
+ * The data argument is a readable stream resource.
+ *
+ * After a succesful put operation, you may choose to return an ETag. The
+ * etag must always be surrounded by double-quotes. These quotes must
+ * appear in the actual string you're returning.
+ *
+ * Clients may use the ETag from a PUT request to later on make sure that
+ * when they update the file, the contents haven't changed in the mean
+ * time.
+ *
+ * If you don't plan to store the file byte-by-byte, and you return a
+ * different object on a subsequent GET you are strongly recommended to not
+ * return an ETag, and just return null.
+ *
+ * @param resource $data
+ * @return string|null
+ */
+ public function put($data)
+ {
+ $filedata = $this->fileData($this->path, $data);
+
+ try {
+ $this->backend->file_update($this->path, $filedata);
+ }
+ catch (Exception $e) {
+// throw new \Sabre\DAV\Exception\Forbidden($e->getMessage());
+ }
+
+ try {
+ $this->data = $this->backend->file_info($this->path);
+ }
+ catch (Exception $e) {
+ }
+
+ return $this->getETag();
+ }
+
+ /**
+ * Returns the data
+ *
+ * This method may either return a string or a readable stream resource
+ *
+ * @return mixed
+ */
+ public function get()
+ {
+ // @TODO: make file path to be based on user ID and file ETag
+ // and check if it exists before - use it for better performance
+ $rcube = rcube::get_instance();
+ $temp_dir = unslashify($rcube->config->get('temp_dir'));
+ $file_path = tempnam($temp_dir, 'davFile');
+
+ $fp = @fopen($file_path, 'bw+');
+
+ try {
+ $this->backend->file_get($this->path, array(), $fp);
+ }
+ catch (Exception $e) {
+// throw new \Sabre\DAV\Exception\Forbidden($e->getMessage());
+ }
+
+ return $fp;
+ }
+
+ /**
+ * Delete the current file
+ *
+ * @return void
+ */
+ public function delete()
+ {
+ try {
+ $this->backend->file_delete($this->path);
+ }
+ catch (Exception $e) {
+// throw new \Sabre\DAV\Exception\Forbidden($e->getMessage());
+ }
+
+ // reset cache
+ if ($this->parent) {
+ $this->parent->children = null;
+ }
+ }
+
+ /**
+ * Returns the size of the node, in bytes
+ *
+ * @return int
+ */
+ public function getSize()
+ {
+ return $this->data['size'];
+ }
+
+ /**
+ * Returns the ETag for a file
+ *
+ * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+ * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+ *
+ * Return null if the ETag can not effectively be determined
+ *
+ * @return mixed
+ */
+ public function getETag()
+ {
+ return sprintf('"%s-%d"', substr(md5($this->path . ':' . $this->data['size']), 0, 16), $this->data['modified']);
+ }
+
+ /**
+ * Returns the mime-type for a file
+ *
+ * If null is returned, we'll assume application/octet-stream
+ *
+ * @return mixed
+ */
+ public function getContentType()
+ {
+ return $this->data['type'];
+ }
+}