xref: /dokuwiki/lib/exe/ajax.php (revision 77b9cb8455942e8998e88f6977e3486959ed1b1a)
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    $query = urldecode($query);
58
59    $data = ft_pageLookup($query, true, useHeading('navigation'));
60
61    if(!count($data)) return;
62
63    print '<strong>'.$lang['quickhits'].'</strong>';
64    print '<ul>';
65    foreach($data as $id => $title){
66        if (useHeading('navigation')) {
67            $name = $title;
68        } else {
69            $ns = getNS($id);
70            if($ns){
71                $name = noNS($id).' ('.$ns.')';
72            }else{
73                $name = $id;
74            }
75        }
76        echo '<li>' . html_wikilink(':'.$id,$name) . '</li>';
77    }
78    print '</ul>';
79}
80
81/**
82 * Support OpenSearch suggestions
83 *
84 * @link   http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions/1.0
85 * @author Mike Frysinger <vapier@gentoo.org>
86 */
87function ajax_suggestions() {
88    global $conf;
89    global $lang;
90
91    $query = cleanID($_POST['q']);
92    if(empty($query)) $query = cleanID($_GET['q']);
93    if(empty($query)) return;
94
95    $data = array();
96    $data = ft_pageLookup($query);
97    if(!count($data)) return;
98    $data = array_keys($data);
99
100    // limit results to 15 hits
101    $data = array_slice($data, 0, 15);
102    $data = array_map('trim',$data);
103    $data = array_map('noNS',$data);
104    $data = array_unique($data);
105    sort($data);
106
107    /* now construct a json */
108    $suggestions = array(
109                        $query,  // the original query
110                        $data,   // some suggestions
111                        array(), // no description
112                        array()  // no urls
113                   );
114    $json = new JSON();
115
116    header('Content-Type: application/x-suggestions+json');
117    print $json->encode($suggestions);
118}
119
120/**
121 * Refresh a page lock and save draft
122 *
123 * Andreas Gohr <andi@splitbrain.org>
124 */
125function ajax_lock(){
126    global $conf;
127    global $lang;
128    global $ID;
129    global $INFO;
130
131    $ID = cleanID($_POST['id']);
132    if(empty($ID)) return;
133
134    $INFO = pageinfo();
135
136    if (!$INFO['writable']) {
137        echo 'Permission denied';
138        return;
139    }
140
141    if(!checklock($ID)){
142        lock($ID);
143        echo 1;
144    }
145
146    if($conf['usedraft'] && $_POST['wikitext']){
147        $client = $_SERVER['REMOTE_USER'];
148        if(!$client) $client = clientIP(true);
149
150        $draft = array('id'     => $ID,
151                'prefix' => substr($_POST['prefix'], 0, -1),
152                'text'   => $_POST['wikitext'],
153                'suffix' => $_POST['suffix'],
154                'date'   => (int) $_POST['date'],
155                'client' => $client,
156                );
157        $cname = getCacheName($draft['client'].$ID,'.draft');
158        if(io_saveFile($cname,serialize($draft))){
159            echo $lang['draftdate'].' '.dformat();
160        }
161    }
162
163}
164
165/**
166 * Delete a draft
167 *
168 * @author Andreas Gohr <andi@splitbrain.org>
169 */
170function ajax_draftdel(){
171    $id = cleanID($_REQUEST['id']);
172    if(empty($id)) return;
173
174    $client = $_SERVER['REMOTE_USER'];
175    if(!$client) $client = clientIP(true);
176
177    $cname = getCacheName($client.$id,'.draft');
178    @unlink($cname);
179}
180
181/**
182 * Return subnamespaces for the Mediamanager
183 *
184 * @author Andreas Gohr <andi@splitbrain.org>
185 */
186function ajax_medians(){
187    global $conf;
188
189    // wanted namespace
190    $ns  = cleanID($_POST['ns']);
191    $dir  = utf8_encodeFN(str_replace(':','/',$ns));
192
193    $lvl = count(explode(':',$ns));
194
195    $data = array();
196    search($data,$conf['mediadir'],'search_index',array('nofiles' => true),$dir);
197    foreach(array_keys($data) as $item){
198        $data[$item]['level'] = $lvl+1;
199    }
200    echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
201}
202
203/**
204 * Return list of files for the Mediamanager
205 *
206 * @author Andreas Gohr <andi@splitbrain.org>
207 */
208function ajax_medialist(){
209    global $conf;
210    global $NS;
211
212    $NS = $_POST['ns'];
213    if ($_POST['do'] == 'media') {
214        tpl_mediaFileList();
215    } else {
216        tpl_mediaContent(true);
217    }
218}
219
220/**
221 * Return the content of the right column
222 * (image details) for the Mediamanager
223 *
224 * @author Kate Arzamastseva <pshns@ukr.net>
225 */
226function ajax_mediadetails(){
227    global $DEL, $NS, $IMG, $AUTH, $JUMPTO, $REV, $lang, $fullscreen, $conf;
228    $fullscreen = true;
229    require_once(DOKU_INC.'lib/exe/mediamanager.php');
230
231    if ($_REQUEST['image']) $image = cleanID($_REQUEST['image']);
232    if (isset($IMG)) $image = $IMG;
233    if (isset($JUMPTO)) $image = $JUMPTO;
234    if (isset($REV) && !$JUMPTO) $rev = $REV;
235
236    html_msgarea();
237    tpl_mediaFileDetails($image, $rev);
238}
239
240/**
241 * Returns image diff representation for mediamanager
242 * @author Kate Arzamastseva <pshns@ukr.net>
243 */
244function ajax_mediadiff(){
245    global $NS;
246
247    if ($_REQUEST['image']) $image = cleanID($_REQUEST['image']);
248    $NS = $_POST['ns'];
249    $auth = auth_quickaclcheck("$ns:*");
250    media_diff($image, $NS, $auth, true);
251}
252
253function ajax_mediaupload(){
254    global $NS, $MSG;
255
256    if ($_FILES['qqfile']['tmp_name']) {
257        $id = ((empty($_POST['mediaid'])) ? $_FILES['qqfile']['name'] : $_POST['mediaid']);
258    } elseif (isset($_GET['qqfile'])) {
259        $id = $_GET['qqfile'];
260    }
261
262    $id = cleanID($id);
263
264    $NS = $_REQUEST['ns'];
265    $ns = $NS.':'.getNS($id);
266
267    $AUTH = auth_quickaclcheck("$ns:*");
268    if($AUTH >= AUTH_UPLOAD) { io_createNamespace("$ns:xxx", 'media'); }
269
270    if ($_FILES['qqfile']['error']) unset($_FILES['qqfile']);
271
272    if ($_FILES['qqfile']['tmp_name']) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
273    if (isset($_GET['qqfile'])) $res = media_upload_xhr($NS, $AUTH);
274
275    if ($res) $result = array('success' => true,
276        'link' => media_managerURL(array('ns' => $ns, 'image' => $NS.':'.$id), '&'),
277        'id' => $NS.':'.$id, 'ns' => $NS);
278
279    if (!$result) {
280        $error = '';
281        if (isset($MSG)) {
282            foreach($MSG as $msg) $error .= $msg['msg'];
283        }
284        $result = array('error' => $msg['msg'], 'ns' => $NS);
285    }
286    $json = new JSON;
287    echo htmlspecialchars($json->encode($result), ENT_NOQUOTES);
288}
289
290function dir_delete($path) {
291    if (!is_string($path) || $path == "") return false;
292
293    if (is_dir($path) && !is_link($path)) {
294        if (!$dh = @opendir($path)) return false;
295
296        while ($f = readdir($dh)) {
297            if ($f == '..' || $f == '.') continue;
298            dir_delete("$path/$f");
299        }
300
301        closedir($dh);
302        return @rmdir($path);
303    } else {
304        return @unlink($path);
305    }
306
307    return false;
308}
309
310/**
311 * Return sub index for index view
312 *
313 * @author Andreas Gohr <andi@splitbrain.org>
314 */
315function ajax_index(){
316    global $conf;
317
318    // wanted namespace
319    $ns  = cleanID($_POST['idx']);
320    $dir  = utf8_encodeFN(str_replace(':','/',$ns));
321
322    $lvl = count(explode(':',$ns));
323
324    $data = array();
325    search($data,$conf['datadir'],'search_index',array('ns' => $ns),$dir);
326    foreach(array_keys($data) as $item){
327        $data[$item]['level'] = $lvl+1;
328    }
329    echo html_buildlist($data, 'idx', 'html_list_index', 'html_li_index');
330}
331
332/**
333 * List matching namespaces and pages for the link wizard
334 *
335 * @author Andreas Gohr <gohr@cosmocode.de>
336 */
337function ajax_linkwiz(){
338    global $conf;
339    global $lang;
340
341    $q  = ltrim(trim($_POST['q']),':');
342    $id = noNS($q);
343    $ns = getNS($q);
344
345    $ns = cleanID($ns);
346    $id = cleanID($id);
347
348    $nsd  = utf8_encodeFN(str_replace(':','/',$ns));
349    $idd  = utf8_encodeFN(str_replace(':','/',$id));
350
351    $data = array();
352    if($q && !$ns){
353
354        // use index to lookup matching pages
355        $pages = array();
356        $pages = ft_pageLookup($id,true);
357
358        // result contains matches in pages and namespaces
359        // we now extract the matching namespaces to show
360        // them seperately
361        $dirs  = array();
362
363        foreach($pages as $pid => $title){
364            if(strpos(noNS($pid),$id) === false){
365                // match was in the namespace
366                $dirs[getNS($pid)] = 1; // assoc array avoids dupes
367            }else{
368                // it is a matching page, add it to the result
369                $data[] = array(
370                        'id'    => $pid,
371                        'title' => $title,
372                        'type'  => 'f',
373                        );
374            }
375            unset($pages[$pid]);
376        }
377        foreach($dirs as $dir => $junk){
378            $data[] = array(
379                    'id'   => $dir,
380                    'type' => 'd',
381                    );
382        }
383
384    }else{
385
386        $opts = array(
387                'depth' => 1,
388                'listfiles' => true,
389                'listdirs'  => true,
390                'pagesonly' => true,
391                'firsthead' => true,
392                'sneakyacl' => $conf['sneaky_index'],
393                );
394        if($id) $opts['filematch'] = '^.*\/'.$id;
395        if($id) $opts['dirmatch']  = '^.*\/'.$id;
396        search($data,$conf['datadir'],'search_universal',$opts,$nsd);
397
398        // add back to upper
399        if($ns){
400            array_unshift($data,array(
401                        'id'   => getNS($ns),
402                        'type' => 'u',
403                        ));
404        }
405    }
406
407    // fixme sort results in a useful way ?
408
409    if(!count($data)){
410        echo $lang['nothingfound'];
411        exit;
412    }
413
414    // output the found data
415    $even = 1;
416    foreach($data as $item){
417        $even *= -1; //zebra
418
419        if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
420        $link = wl($item['id']);
421
422        echo '<div class="'.(($even > 0)?'even':'odd').' type_'.$item['type'].'">';
423
424        if($item['type'] == 'u'){
425            $name = $lang['upperns'];
426        }else{
427            $name = htmlspecialchars($item['id']);
428        }
429
430        echo '<a href="'.$link.'" title="'.htmlspecialchars($item['id']).'" class="wikilink1">'.$name.'</a>';
431
432        if($item['title']){
433            echo '<span>'.htmlspecialchars($item['title']).'</span>';
434        }
435        echo '</div>';
436    }
437
438}
439
440//Setup VIM: ex: et ts=2 :
441