xref: /dokuwiki/lib/exe/ajax.php (revision f4aabe763b3ae83161819c991d4c7820523c3524) 
1<?php
2/**
3 * DokuWiki AJAX call handler
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 */
8
9//fix for Opera XMLHttpRequests
10if(!count($_POST) && !empty($HTTP_RAW_POST_DATA)){
11    parse_str($HTTP_RAW_POST_DATA, $_POST);
12}
13
14if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/../../');
15require_once(DOKU_INC.'inc/init.php');
16//close session
17session_write_close();
18
19header('Content-Type: text/html; charset=utf-8');
20
21
22//call the requested function
23if(isset($_POST['call'])){
24    $call = $_POST['call'];
25}else if(isset($_GET['call'])){
26    $call = $_GET['call'];
27}else{
28    exit;
29}
30$callfn = 'ajax_'.$call;
31
32if(function_exists($callfn)){
33    $callfn();
34}else{
35    $evt = new Doku_Event('AJAX_CALL_UNKNOWN', $call);
36    if ($evt->advise_before()) {
37        print "AJAX call '".htmlspecialchars($call)."' unknown!\n";
38        exit;
39    }
40    $evt->advise_after();
41    unset($evt);
42}
43
44/**
45 * Searches for matching pagenames
46 *
47 * @author Andreas Gohr <andi@splitbrain.org>
48 */
49function ajax_qsearch(){
50    global $conf;
51    global $lang;
52
53    $query = $_POST['q'];
54    if(empty($query)) $query = $_GET['q'];
55    if(empty($query)) return;
56
57    $data = ft_pageLookup($query, true, useHeading('navigation'));
58
59    if(!count($data)) return;
60
61    print '<strong>'.$lang['quickhits'].'</strong>';
62    print '<ul>';
63    foreach($data as $id => $title){
64        if (useHeading('navigation')) {
65            $name = $title;
66        } else {
67            $ns = getNS($id);
68            if($ns){
69                $name = noNS($id).' ('.$ns.')';
70            }else{
71                $name = $id;
72            }
73        }
74        echo '<li>' . html_wikilink(':'.$id,$name) . '</li>';
75    }
76    print '</ul>';
77}
78
79/**
80 * Support OpenSearch suggestions
81 *
82 * @link   http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions/1.0
83 * @author Mike Frysinger <vapier@gentoo.org>
84 */
85function ajax_suggestions() {
86    global $conf;
87    global $lang;
88
89    $query = cleanID($_POST['q']);
90    if(empty($query)) $query = cleanID($_GET['q']);
91    if(empty($query)) return;
92
93    $data = array();
94    $data = ft_pageLookup($query);
95    if(!count($data)) return;
96    $data = array_keys($data);
97
98    // limit results to 15 hits
99    $data = array_slice($data, 0, 15);
100    $data = array_map('trim',$data);
101    $data = array_map('noNS',$data);
102    $data = array_unique($data);
103    sort($data);
104
105    /* now construct a json */
106    $suggestions = array(
107                        $query,  // the original query
108                        $data,   // some suggestions
109                        array(), // no description
110                        array()  // no urls
111                   );
112    $json = new JSON();
113
114    header('Content-Type: application/x-suggestions+json');
115    print $json->encode($suggestions);
116}
117
118/**
119 * Refresh a page lock and save draft
120 *
121 * Andreas Gohr <andi@splitbrain.org>
122 */
123function ajax_lock(){
124    global $conf;
125    global $lang;
126    global $ID;
127    global $INFO;
128
129    $ID = cleanID($_POST['id']);
130    if(empty($ID)) return;
131
132    $INFO = pageinfo();
133
134    if (!$INFO['writable']) {
135        echo 'Permission denied';
136        return;
137    }
138
139    if(!checklock($ID)){
140        lock($ID);
141        echo 1;
142    }
143
144    if($conf['usedraft'] && $_POST['wikitext']){
145        $client = $_SERVER['REMOTE_USER'];
146        if(!$client) $client = clientIP(true);
147
148        $draft = array('id'     => $ID,
149                'prefix' => substr($_POST['prefix'], 0, -1),
150                'text'   => $_POST['wikitext'],
151                'suffix' => $_POST['suffix'],
152                'date'   => (int) $_POST['date'],
153                'client' => $client,
154                );
155        $cname = getCacheName($draft['client'].$ID,'.draft');
156        if(io_saveFile($cname,serialize($draft))){
157            echo $lang['draftdate'].' '.dformat();
158        }
159    }
160
161}
162
163/**
164 * Delete a draft
165 *
166 * @author Andreas Gohr <andi@splitbrain.org>
167 */
168function ajax_draftdel(){
169    $id = cleanID($_REQUEST['id']);
170    if(empty($id)) return;
171
172    $client = $_SERVER['REMOTE_USER'];
173    if(!$client) $client = clientIP(true);
174
175    $cname = getCacheName($client.$id,'.draft');
176    @unlink($cname);
177}
178
179/**
180 * Return subnamespaces for the Mediamanager
181 *
182 * @author Andreas Gohr <andi@splitbrain.org>
183 */
184function ajax_medians(){
185    global $conf;
186
187    // wanted namespace
188    $ns  = cleanID($_POST['ns']);
189    $dir  = utf8_encodeFN(str_replace(':','/',$ns));
190
191    $lvl = count(explode(':',$ns));
192
193    $data = array();
194    search($data,$conf['mediadir'],'search_index',array('nofiles' => true),$dir);
195    foreach(array_keys($data) as $item){
196        $data[$item]['level'] = $lvl+1;
197    }
198    echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
199}
200
201/**
202 * Return list of files for the Mediamanager
203 *
204 * @author Andreas Gohr <andi@splitbrain.org>
205 */
206function ajax_medialist(){
207    global $conf;
208    global $NS;
209
210    $NS = $_POST['ns'];
211    if ($_POST['do'] == 'media') {
212        tpl_mediaFileList();
213    } else {
214        tpl_mediaContent(true);
215    }
216}
217
218/**
219 * Return the content of the right column
220 * (image details) for the Mediamanager
221 *
222 * @author Kate Arzamastseva <pshns@ukr.net>
223 */
224function ajax_mediadetails(){
225    global $DEL, $NS, $IMG, $AUTH, $JUMPTO, $REV, $lang, $fullscreen, $conf;
226    $fullscreen = true;
227    require_once(DOKU_INC.'lib/exe/mediamanager.php');
228
229    if ($_REQUEST['image']) $image = cleanID($_REQUEST['image']);
230    if (isset($IMG)) $image = $IMG;
231    if (isset($JUMPTO)) $image = $JUMPTO;
232    if (isset($REV) && !$JUMPTO) $rev = $REV;
233
234    html_msgarea();
235    tpl_mediaFileDetails($image, $rev);
236}
237
238/**
239 * Returns image diff representation for mediamanager
240 * @author Kate Arzamastseva <pshns@ukr.net>
241 */
242function ajax_mediadiff(){
243    global $NS;
244
245    if ($_REQUEST['image']) $image = cleanID($_REQUEST['image']);
246    $NS = $_POST['ns'];
247    $auth = auth_quickaclcheck("$ns:*");
248    media_diff($image, $NS, $auth, true);
249}
250
251function ajax_mediaupload(){
252    global $NS, $MSG;
253
254    if ($_FILES['qqfile']['tmp_name']) {
255        $id = ((empty($_POST['mediaid'])) ? $_FILES['qqfile']['name'] : $_POST['mediaid']);
256    } elseif (isset($_GET['qqfile'])) {
257        $id = $_GET['qqfile'];
258    }
259
260    $id = cleanID($id, false, true);
261
262    $NS = $_REQUEST['ns'];
263    $ns = $NS.':'.getNS($id);
264
265    $AUTH = auth_quickaclcheck("$ns:*");
266    if($AUTH >= AUTH_UPLOAD) { io_createNamespace("$ns:xxx", 'media'); }
267
268    if ($_FILES['qqfile']['error']) unset($_FILES['qqfile']);
269
270    if ($_FILES['qqfile']['tmp_name']) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
271    if (isset($_GET['qqfile'])) $res = media_upload_xhr($NS, $AUTH);
272
273    if ($res) $result = array('success' => true,
274        'link' => media_managerURL(array('ns' => $ns, 'image' => $NS.':'.$id), '&'),
275        'id' => $NS.':'.$id, 'ns' => $NS);
276
277    if (!$result) {
278        $error = '';
279        if (isset($MSG)) {
280            foreach($MSG as $msg) $error .= $msg['msg'];
281        }
282        $result = array('error' => $msg['msg'], 'ns' => $NS);
283    }
284    echo htmlspecialchars(json_encode($result), ENT_NOQUOTES);
285}
286
287function dir_delete($path) {
288    if (!is_string($path) || $path == "") return false;
289
290    if (is_dir($path) && !is_link($path)) {
291        if (!$dh = @opendir($path)) return false;
292
293        while ($f = readdir($dh)) {
294            if ($f == '..' || $f == '.') continue;
295            dir_delete("$path/$f");
296        }
297
298        closedir($dh);
299        return @rmdir($path);
300    } else {
301        return @unlink($path);
302    }
303
304    return false;
305}
306
307/**
308 * Return sub index for index view
309 *
310 * @author Andreas Gohr <andi@splitbrain.org>
311 */
312function ajax_index(){
313    global $conf;
314
315    // wanted namespace
316    $ns  = cleanID($_POST['idx']);
317    $dir  = utf8_encodeFN(str_replace(':','/',$ns));
318
319    $lvl = count(explode(':',$ns));
320
321    $data = array();
322    search($data,$conf['datadir'],'search_index',array('ns' => $ns),$dir);
323    foreach(array_keys($data) as $item){
324        $data[$item]['level'] = $lvl+1;
325    }
326    echo html_buildlist($data, 'idx', 'html_list_index', 'html_li_index');
327}
328
329/**
330 * List matching namespaces and pages for the link wizard
331 *
332 * @author Andreas Gohr <gohr@cosmocode.de>
333 */
334function ajax_linkwiz(){
335    global $conf;
336    global $lang;
337
338    $q  = ltrim(trim($_POST['q']),':');
339    $id = noNS($q);
340    $ns = getNS($q);
341
342    $ns = cleanID($ns);
343    $id = cleanID($id);
344
345    $nsd  = utf8_encodeFN(str_replace(':','/',$ns));
346    $idd  = utf8_encodeFN(str_replace(':','/',$id));
347
348    $data = array();
349    if($q && !$ns){
350
351        // use index to lookup matching pages
352        $pages = array();
353        $pages = ft_pageLookup($id,true);
354
355        // result contains matches in pages and namespaces
356        // we now extract the matching namespaces to show
357        // them seperately
358        $dirs  = array();
359
360        foreach($pages as $pid => $title){
361            if(strpos(noNS($pid),$id) === false){
362                // match was in the namespace
363                $dirs[getNS($pid)] = 1; // assoc array avoids dupes
364            }else{
365                // it is a matching page, add it to the result
366                $data[] = array(
367                        'id'    => $pid,
368                        'title' => $title,
369                        'type'  => 'f',
370                        );
371            }
372            unset($pages[$pid]);
373        }
374        foreach($dirs as $dir => $junk){
375            $data[] = array(
376                    'id'   => $dir,
377                    'type' => 'd',
378                    );
379        }
380
381    }else{
382
383        $opts = array(
384                'depth' => 1,
385                'listfiles' => true,
386                'listdirs'  => true,
387                'pagesonly' => true,
388                'firsthead' => true,
389                'sneakyacl' => $conf['sneaky_index'],
390                );
391        if($id) $opts['filematch'] = '^.*\/'.$id;
392        if($id) $opts['dirmatch']  = '^.*\/'.$id;
393        search($data,$conf['datadir'],'search_universal',$opts,$nsd);
394
395        // add back to upper
396        if($ns){
397            array_unshift($data,array(
398                        'id'   => getNS($ns),
399                        'type' => 'u',
400                        ));
401        }
402    }
403
404    // fixme sort results in a useful way ?
405
406    if(!count($data)){
407        echo $lang['nothingfound'];
408        exit;
409    }
410
411    // output the found data
412    $even = 1;
413    foreach($data as $item){
414        $even *= -1; //zebra
415
416        if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
417        $link = wl($item['id']);
418
419        echo '<div class="'.(($even > 0)?'even':'odd').' type_'.$item['type'].'">';
420
421        if($item['type'] == 'u'){
422            $name = $lang['upperns'];
423        }else{
424            $name = htmlspecialchars($item['id']);
425        }
426
427        echo '<a href="'.$link.'" title="'.htmlspecialchars($item['id']).'" class="wikilink1">'.$name.'</a>';
428
429        if($item['title']){
430            echo '<span>'.htmlspecialchars($item['title']).'</span>';
431        }
432        echo '</div>';
433    }
434
435}
436
437//Setup VIM: ex: et ts=2 :
438