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<?php
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/* This file is part of "WebDav for Drupal Module".
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* Copyright 2009, arNuméral
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* Author : Yoran Brault
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* eMail : yoran.brault@bad_arnumeral.fr (remove bad_ before sending an email)
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* Site : http://www.arnumeral.fr/node/5
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*
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* "WebDav for Drupal Module" is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* "WebDav for Drupal Module" 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 GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with "Broken Anchor for Node comments Module"; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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require_once 'HTTP/WebDAV/Server.php';
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class DrupalDavServer extends HTTP_WebDAV_Server {
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var $dav_powered_by = 'Drupal WebDAV (+http://drupal.org/project/webdav)';
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/** Serve a webdav request. */
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function ServeRequest() {
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parent :: ServeRequest();
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}
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function checkLock ($path) {
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// $cursor = db_query("SELECT * FROM {webdav_locks} WHERE path = '%s'",$path);
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// $lock = db_fetch_array($cursor);
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// if (webdav_is_debug()) webdav_debug("Checking $path lock... : ".$lock['token']);
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// return $lock;
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return NULL;
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}
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/** PROPFIND method handler. */
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function PROPFIND(& $options, & $files) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// search for the associated collection
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$handler = webdav_route_resolve(webdav_session('route'));
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if (!webdav_check_collection_perms($handler)) {
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return webdav_session_close();
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}
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$resource = webdav_resource($handler);
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if ($resource===false) {
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webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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return false;
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}
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// if client forget the leading / for a collection URL, we should redirect it
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webdav_redirect_wrong_collection( $resource);
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/* first, this is a folder...
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* FIXME sure this will not work for depth > 1
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*/
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$members=array();
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if ($resource['type'] == 'collection' && $options['depth'] != 0) {
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$members = webdav_members($handler);
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}
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// make the root item first of the list
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array_unshift($members, $resource);
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// Convert items to DAV files
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$files['files'] = array ();
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$members[0]['id']=''; //
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foreach ($members as $_item) {
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$files['files'][] = $this->convert_item($session, $_item);
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}
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// DEBUG: display result
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if (webdav_is_debug()) {
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$count=0;
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foreach ($files['files'] as $file) {
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webdav_debug(' + ' . $file['path']);
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$count++;
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if ($count > 5) {
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break;
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}
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}
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}
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webdav_session_close();
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return true; // No status for this, everything is handled by undelying class
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}
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/** convert DFS item to Dav item */
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function convert_item(&$session, &$resource) {
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$file = array ();
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// Common properties
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$route=webdav_session('route');
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array_push($route, $resource['id']);
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$route[0]=WEBDAV_ROOT_MENU;
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$file['path'] = webdav_route_to_path($route);
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$file['props'] = array ();
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if (!empty($resource['name'])) {
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$file['props'][] = $this->mkprop(
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'displayname',$resource['name']); // No need to convert HTML entities (< > &) as is done by pear
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}
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if (!empty($resource['created'])) {
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$file['props'][] = $this->mkprop('creationdate', $resource['created']);
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}
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if (!empty($resource['changed'])) {
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$file['props'][] = $this->mkprop('getlastmodified', $resource['changed']);
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}
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if ($resource['type'] == 'collection') {
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$file['path'] = webdav_slashify($file['path']);
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$file['props'][] = $this->mkprop('resourcetype', 'collection');
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$file['props'][] = $this->mkprop('getcontentlength', 1);
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} else {
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$file['path'] = webdav_unslashify($file['path']);
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$file['props'][] = $this->mkprop('creationdate', $resource['created']);
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$file['props'][] = $this->mkprop('getlastmodified', $resource['changed']);
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$file['props'][] = $this->mkprop('resourcetype', '');
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$file['props'][] = $this->mkprop('getcontenttype', $resource['type']);
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$file['props'][] = $this->mkprop('getcontentlength', $resource['size']);
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}
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return $file;
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}
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/**
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* GET method handler
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*
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* @param array parameter passing array
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* @return bool true on success
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*/
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function GET(& $options) {
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webdav_session_start($options['path']);
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// search for the associated collection
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$handler = webdav_route_resolve(webdav_session('route'));
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webdav_check_collection_perms($handler); // FIXME : we don't have to give the not found information
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$resource = webdav_resource($handler);
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if ($resource===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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if (webdav_session_failed()) {
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if ($resource['type']=='collection') {
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webdav_set_output_type(WEBDAV_CONTENT_DRUPAL);
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}
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return webdav_session_close();
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}
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if ($resource['type']!='collection') {
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$options['mimetype'] = $resource['type'];
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if (!empty($resource['encoding'])) {
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$options['mimetype'].='; charset=' . $resource['encoding'];
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} else {
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// FIXME No encoding <=> binary, not that clever, we need a proper contet-type handling here
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webdav_set_output_type(WEBDAV_CONTENT_BINARY);
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}
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if (webdav_is_debug()) webdav_debug("Document encoding : ".$options['mimetype']);
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$options['mtime'] = $resource['changed'];
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$options['ctime'] = $resource['created'];
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$options['size'] = $resource['size'];
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// Load string content
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webdav_session_set_status(WEBDAV_STATUS_OK);
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$result=webdav_operation($handler, 'get');
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if (webdav_session_failed()) return webdav_session_close();
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if (is_string($result)) {
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// Save temporary file
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$file_name = tempnam(file_directory_temp(), 'FOO');
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$handle = fopen($file_name, 'w');
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fwrite($handle, $result);
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fclose($handle);
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$stream=fopen($file_name, 'r');
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} else {
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$stream=$result;
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}
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$options['stream'] = $stream;
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webdav_session_close();
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return true;
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} else {
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webdav_redirect_wrong_collection( $resource);
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if (empty($resource['name'])) {
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$resource['name']=$resource['id'];
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}
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$members = webdav_members($handler);
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foreach ($members as &$_item) {
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if (empty($_item['name'])) {
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$_item['name']=$_item['id'];
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}
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if ($_item['type']=='collection') {
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$_item['id']=webdav_slashify($_item['id']);
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}
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}
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$contents = theme('webdav_listing', $resource, $members);
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$path = drupal_get_path('module', 'webdav');
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drupal_add_css($path . '/webdav_listing.css');
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webdav_set_output_type(WEBDAV_CONTENT_DRUPAL);
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print $contents;
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webdav_session_close();
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return false;
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}
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}
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/**
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* PUT method handler
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*
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* @param array parameter passing array
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* @return bool true on success
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*/
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function PUT(& $options) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// lookup item (if it is an existing one)
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$route=webdav_session('route');
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$name=array_pop($route);
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$handler = webdav_route_resolve($route);
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if (!webdav_check_collection_perms($handler)) {
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return webdav_session_close();
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}
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$parent_item = webdav_resource($handler);
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if ($parent_item===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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// prepare item stuff
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$file_name = file_directory_temp()."/".$name;
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$handle = fopen($file_name, 'w');
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while (!feof($options["stream"])) {
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$data= fread($options["stream"], 8192);
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fwrite($handle, $data);
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}
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fclose($handle);
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webdav_session_set_status(WEBDAV_STATUS_CREATED);
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webdav_operation($handler, 'put', $file_name);
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return webdav_session_close();
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}
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/**
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* MKCOL method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function MKCOL($options) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// lookup item
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$route=webdav_session('route');
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$new_folder=array_pop($route);
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$handler = webdav_route_resolve($route);
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if (!webdav_check_collection_perms($handler)) return webdav_session_close();
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$resource = webdav_resource($handler);
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if ($resource===false) return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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webdav_session_set_status(WEBDAV_STATUS_CREATED);
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webdav_operation($handler, 'create', $new_folder);
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return webdav_session_close();
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}
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/**
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* DELETE method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function DELETE($options) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// lookup item
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$handler = webdav_route_resolve(webdav_session('route'));
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if (!webdav_check_collection_perms($handler)) return webdav_session_close();
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$resource = webdav_resource($handler);
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if ($resource===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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// prepare item stuff
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webdav_session_set_status(WEBDAV_STATUS_NO_CONTENT);
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webdav_operation($handler, 'delete');
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// cleaning locks
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if (!webdav_session_failed()) {
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db_query("DELETE FROM {webdav_locks} WHERE path='%s'", $options['path']);
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}
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cache_clear_all('w');
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return webdav_session_close();
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}
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/**
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* OPTIONS method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function OPTIONS($options) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// lookup item
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$handler = webdav_route_resolve(webdav_session('route'));
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// if ( ( !(($this->_SERVER['REQUEST_METHOD'] == 'OPTIONS') && ($this->path == "/")))
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if (!webdav_check_collection_perms($handler)) return webdav_session_close();
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$resource = webdav_resource($handler);
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if ($resource===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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// if client forget the leading / for a collection URL, we should redirect it
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webdav_redirect_wrong_collection( $resource);
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$resource=webdav_resource($handler);
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header("Content-Type:".$resource['type']=='collection'?'httpd/unix-directory':$resource['type']);
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webdav_session_close(WEBDAV_STATUS_OK); // We
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}
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/**
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* MOVE method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function MOVE($options) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// lookup item
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$arguments=webdav_session('route');
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$source_collection = webdav_route_resolve($arguments);
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if (!webdav_check_collection_perms($source_collection)) return webdav_session_close();
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$source_item = webdav_resource($source_collection);
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if ($source_item===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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$target_session=webdav_session_create($options['dest']);
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$target_name=array_pop($target_session->route);
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$target_collection = webdav_route_resolve($target_session->route);
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if (!webdav_check_collection_perms($target_collection)) return webdav_session_close();
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$target_item = webdav_resource($target_collection);
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if ($target_item===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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webdav_session_set_status(WEBDAV_STATUS_CREATED);
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webdav_operation($target_collection, 'move', $target_name, $source_collection);
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if (!webdav_session_failed()) {
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// moving locks
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db_query("update {webdav_locks} set path='%s' where path='%s'",$options['dest'],$options['path']);
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}
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return webdav_session_close();
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}
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/**
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* COPY method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function COPY($options) {
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webdav_session_start($options['path']);
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if (webdav_session_failed()) return webdav_session_close();
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// lookup item
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$arguments=webdav_session('route');
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$source_collection = webdav_route_resolve($arguments);
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if (!webdav_check_collection_perms($source_collection)) return webdav_session_close();
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$source_item = webdav_resource($source_collection);
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if ($source_item===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
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$target_session=webdav_session_create($options['dest']);
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$target_name=array_pop($target_session->route);
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$target_collection = webdav_route_resolve($target_session->route);
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if (!webdav_check_collection_perms($target_collection)) return webdav_session_close();
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$target_item = webdav_resource($target_collection);
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if ($target_item===false) {
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return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
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}
|
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webdav_session_set_status(WEBDAV_STATUS_CREATED);
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webdav_operation($target_collection, 'copy', $target_name, $source_collection);
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return webdav_session_close();
|
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}
|
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/**
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* PROPPATCH method handler
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*
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* @param array general parameter passing array
|
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* @return bool true on success
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*/
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function PROPPATCH(& $options) {
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webdav_session_start($options['path']);
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webdav_status_not_implemented();
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if (webdav_session_failed()) return webdav_session_close();
|
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}
|
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/**
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* LOCK method handler
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| 420 |
*
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| 421 |
* @param array general parameter passing array
|
| 422 |
* @return bool true on success
|
| 423 |
*/
|
| 424 |
function LOCK(& $options) {
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| 425 |
webdav_session_start($options['path']);
|
| 426 |
if (webdav_session_failed()) return webdav_session_status();
|
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// lookup the collection to lock
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$handler = webdav_route_resolve(webdav_session('route'));
|
| 430 |
if (!webdav_check_collection_perms($handler)) return webdav_session_close();
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| 431 |
if ($handler===false) return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
|
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webdav_operation($handler, 'lock');
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| 434 |
if (webdav_session_failed()) return webdav_session_close();
|
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$options["timeout"] = time()+webdav_lock_timeout();
|
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| 438 |
if (isset($options["update"])) { // Lock Update
|
| 439 |
$cursor = db_query("SELECT * FROM {webdav_locks} WHERE path = '%s' AND token = '%s'",
|
| 440 |
$options[path],
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$options[update]);
|
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| 443 |
$lock = db_fetch_array($cursor);
|
| 444 |
if ($lock) {
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| 445 |
$lock['expires']=$options[timeout];
|
| 446 |
$lock['modified']=time();
|
| 447 |
drupal_write_record('dav_locks', $lock, 'token');
|
| 448 |
$options['owner'] = $lock['owner'];
|
| 449 |
$options['scope'] = $lock["exclusivelock"] ? "exclusive" : "shared";
|
| 450 |
$options['type'] = $lock["exclusivelock"] ? "write" : "read";
|
| 451 |
return true;
|
| 452 |
} else {
|
| 453 |
return false;
|
| 454 |
}
|
| 455 |
}
|
| 456 |
|
| 457 |
$lock=array(
|
| 458 |
'token' => $options[locktoken],
|
| 459 |
'path' => $options[path],
|
| 460 |
'created' => time(),
|
| 461 |
'modified' => time(),
|
| 462 |
'owner' => $options[owner],
|
| 463 |
'expires' => $options[timeout],
|
| 464 |
'exclusivelock' => $options['scope'] === "exclusive" ? "1" : "0",
|
| 465 |
);
|
| 466 |
drupal_write_record('webdav_locks', $lock);
|
| 467 |
|
| 468 |
return webdav_session_close();
|
| 469 |
}
|
| 470 |
|
| 471 |
/**
|
| 472 |
* UNLOCK method handler
|
| 473 |
*
|
| 474 |
* @param array general parameter passing array
|
| 475 |
* @return bool true on success
|
| 476 |
*/
|
| 477 |
function UNLOCK(& $options) {
|
| 478 |
webdav_session_start($options['path']);
|
| 479 |
if (webdav_session_failed()) return webdav_session_close();
|
| 480 |
|
| 481 |
// lookup the collection to lock
|
| 482 |
$handler = webdav_route_resolve(webdav_session('route'));
|
| 483 |
if (!webdav_check_collection_perms($handler)) return webdav_session_close();
|
| 484 |
if ($handler===false) return webdav_session_close(WEBDAV_STATUS_NOT_FOUND);
|
| 485 |
|
| 486 |
webdav_operation($session, $handler, 'unlock');
|
| 487 |
if (webdav_session_failed()) return webdav_session_close();
|
| 488 |
|
| 489 |
db_query("DELETE FROM {webdav_locks} where path='%s' and token='%s'",
|
| 490 |
$options[path],
|
| 491 |
$options[token]);
|
| 492 |
return webdav_session_close(WEBDAV_STATUS_NO_CONTENT);
|
| 493 |
}
|
| 494 |
}
|
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