xref: /dokuwiki/lib/exe/ajax.php (revision 66f6026a07113ad66bd10f320b325222708aaaf2) 
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    if (!checkSecurityToken()) return;
132
133    $INFO = pageinfo();
134
135    if (!$INFO['writable']) {
136        echo 'Permission denied';
137        return;
138    }
139
140    if(!checklock($ID)){
141        lock($ID);
142        echo 1;
143    }
144
145    if($conf['usedraft'] && $_POST['wikitext']){
146        $client = $_SERVER['REMOTE_USER'];
147        if(!$client) $client = clientIP(true);
148
149        $draft = array('id'     => $ID,
150                'prefix' => substr($_POST['prefix'], 0, -1),
151                'text'   => $_POST['wikitext'],
152                'suffix' => $_POST['suffix'],
153                'date'   => (int) $_POST['date'],
154                'client' => $client,
155                );
156        $cname = getCacheName($draft['client'].$ID,'.draft');
157        if(io_saveFile($cname,serialize($draft))){
158            echo $lang['draftdate'].' '.dformat();
159        }
160    }
161
162}
163
164/**
165 * Delete a draft
166 *
167 * @author Andreas Gohr <andi@splitbrain.org>
168 */
169function ajax_draftdel(){
170    $id = cleanID($_REQUEST['id']);
171    if(empty($id)) return;
172    if (!checkSecurityToken()) 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($data as $item){
198        $item['level'] = $lvl+1;
199        echo media_nstree_li($item);
200        echo media_nstree_item($item);
201        echo '</li>';
202    }
203}
204
205/**
206 * Return list of files for the Mediamanager
207 *
208 * @author Andreas Gohr <andi@splitbrain.org>
209 */
210function ajax_medialist(){
211    global $conf;
212    global $NS;
213
214    $NS = $_POST['ns'];
215    tpl_mediaContent(true);
216}
217
218/**
219 * Return sub index for index view
220 *
221 * @author Andreas Gohr <andi@splitbrain.org>
222 */
223function ajax_index(){
224    global $conf;
225
226    // wanted namespace
227    $ns  = cleanID($_POST['idx']);
228    $dir  = utf8_encodeFN(str_replace(':','/',$ns));
229
230    $lvl = count(explode(':',$ns));
231
232    $data = array();
233    search($data,$conf['datadir'],'search_index',array('ns' => $ns),$dir);
234    foreach($data as $item){
235        $item['level'] = $lvl+1;
236        echo html_li_index($item);
237        echo '<div class="li">';
238        echo html_list_index($item);
239        echo '</div>';
240        echo '</li>';
241    }
242}
243
244/**
245 * List matching namespaces and pages for the link wizard
246 *
247 * @author Andreas Gohr <gohr@cosmocode.de>
248 */
249function ajax_linkwiz(){
250    global $conf;
251    global $lang;
252
253    $q  = ltrim(trim($_POST['q']),':');
254    $id = noNS($q);
255    $ns = getNS($q);
256
257    $ns = cleanID($ns);
258    $id = cleanID($id);
259
260    $nsd  = utf8_encodeFN(str_replace(':','/',$ns));
261    $idd  = utf8_encodeFN(str_replace(':','/',$id));
262
263    $data = array();
264    if($q && !$ns){
265
266        // use index to lookup matching pages
267        $pages = array();
268        $pages = ft_pageLookup($id,true);
269
270        // result contains matches in pages and namespaces
271        // we now extract the matching namespaces to show
272        // them seperately
273        $dirs  = array();
274
275        foreach($pages as $pid => $title){
276            if(strpos(noNS($pid),$id) === false){
277                // match was in the namespace
278                $dirs[getNS($pid)] = 1; // assoc array avoids dupes
279            }else{
280                // it is a matching page, add it to the result
281                $data[] = array(
282                        'id'    => $pid,
283                        'title' => $title,
284                        'type'  => 'f',
285                        );
286            }
287            unset($pages[$pid]);
288        }
289        foreach($dirs as $dir => $junk){
290            $data[] = array(
291                    'id'   => $dir,
292                    'type' => 'd',
293                    );
294        }
295
296    }else{
297
298        $opts = array(
299                'depth' => 1,
300                'listfiles' => true,
301                'listdirs'  => true,
302                'pagesonly' => true,
303                'firsthead' => true,
304                'sneakyacl' => $conf['sneaky_index'],
305                );
306        if($id) $opts['filematch'] = '^.*\/'.$id;
307        if($id) $opts['dirmatch']  = '^.*\/'.$id;
308        search($data,$conf['datadir'],'search_universal',$opts,$nsd);
309
310        // add back to upper
311        if($ns){
312            array_unshift($data,array(
313                        'id'   => getNS($ns),
314                        'type' => 'u',
315                        ));
316        }
317    }
318
319    // fixme sort results in a useful way ?
320
321    if(!count($data)){
322        echo $lang['nothingfound'];
323        exit;
324    }
325
326    // output the found data
327    $even = 1;
328    foreach($data as $item){
329        $even *= -1; //zebra
330
331        if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
332        $link = wl($item['id']);
333
334        echo '<div class="'.(($even > 0)?'even':'odd').' type_'.$item['type'].'">';
335
336        if($item['type'] == 'u'){
337            $name = $lang['upperns'];
338        }else{
339            $name = htmlspecialchars($item['id']);
340        }
341
342        echo '<a href="'.$link.'" title="'.htmlspecialchars($item['id']).'" class="wikilink1">'.$name.'</a>';
343
344        if($item['title']){
345            echo '<span>'.htmlspecialchars($item['title']).'</span>';
346        }
347        echo '</div>';
348    }
349
350}
351
352//Setup VIM: ex: et ts=2 :
353