xref: /dokuwiki/lib/exe/ajax.php (revision 7800517deb6ab16f8211f73adc961a5bcb1ea328) 
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($data as $item){
196        $item['level'] = $lvl+1;
197        echo media_nstree_li($item);
198        echo media_nstree_item($item);
199        echo '</li>';
200    }
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    tpl_mediaContent(true);
214}
215
216/**
217 * Return sub index for index view
218 *
219 * @author Andreas Gohr <andi@splitbrain.org>
220 */
221function ajax_index(){
222    global $conf;
223
224    // wanted namespace
225    $ns  = cleanID($_POST['idx']);
226    $dir  = utf8_encodeFN(str_replace(':','/',$ns));
227
228    $lvl = count(explode(':',$ns));
229
230    $data = array();
231    search($data,$conf['datadir'],'search_index',array('ns' => $ns),$dir);
232    foreach($data as $item){
233        $item['level'] = $lvl+1;
234        echo html_li_index($item);
235        echo '<div class="li">';
236        echo html_list_index($item);
237        echo '</div>';
238        echo '</li>';
239    }
240}
241
242/**
243 * List matching namespaces and pages for the link wizard
244 *
245 * @author Andreas Gohr <gohr@cosmocode.de>
246 */
247function ajax_linkwiz(){
248    global $conf;
249    global $lang;
250
251    $q  = ltrim(trim($_POST['q']),':');
252    $id = noNS($q);
253    $ns = getNS($q);
254
255    $ns = cleanID($ns);
256    $id = cleanID($id);
257
258    $nsd  = utf8_encodeFN(str_replace(':','/',$ns));
259    $idd  = utf8_encodeFN(str_replace(':','/',$id));
260
261    $data = array();
262    if($q && !$ns){
263
264        // use index to lookup matching pages
265        $pages = array();
266        $pages = ft_pageLookup($id,true);
267
268        // result contains matches in pages and namespaces
269        // we now extract the matching namespaces to show
270        // them seperately
271        $dirs  = array();
272
273        foreach($pages as $pid => $title){
274            if(strpos(noNS($pid),$id) === false){
275                // match was in the namespace
276                $dirs[getNS($pid)] = 1; // assoc array avoids dupes
277            }else{
278                // it is a matching page, add it to the result
279                $data[] = array(
280                        'id'    => $pid,
281                        'title' => $title,
282                        'type'  => 'f',
283                        );
284            }
285            unset($pages[$pid]);
286        }
287        foreach($dirs as $dir => $junk){
288            $data[] = array(
289                    'id'   => $dir,
290                    'type' => 'd',
291                    );
292        }
293
294    }else{
295
296        $opts = array(
297                'depth' => 1,
298                'listfiles' => true,
299                'listdirs'  => true,
300                'pagesonly' => true,
301                'firsthead' => true,
302                'sneakyacl' => $conf['sneaky_index'],
303                );
304        if($id) $opts['filematch'] = '^.*\/'.$id;
305        if($id) $opts['dirmatch']  = '^.*\/'.$id;
306        search($data,$conf['datadir'],'search_universal',$opts,$nsd);
307
308        // add back to upper
309        if($ns){
310            array_unshift($data,array(
311                        'id'   => getNS($ns),
312                        'type' => 'u',
313                        ));
314        }
315    }
316
317    // fixme sort results in a useful way ?
318
319    if(!count($data)){
320        echo $lang['nothingfound'];
321        exit;
322    }
323
324    // output the found data
325    $even = 1;
326    foreach($data as $item){
327        $even *= -1; //zebra
328
329        if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
330        $link = wl($item['id']);
331
332        echo '<div class="'.(($even > 0)?'even':'odd').' type_'.$item['type'].'">';
333
334        if($item['type'] == 'u'){
335            $name = $lang['upperns'];
336        }else{
337            $name = htmlspecialchars($item['id']);
338        }
339
340        echo '<a href="'.$link.'" title="'.htmlspecialchars($item['id']).'" class="wikilink1">'.$name.'</a>';
341
342        if($item['title']){
343            echo '<span>'.htmlspecialchars($item['title']).'</span>';
344        }
345        echo '</div>';
346    }
347
348}
349
350//Setup VIM: ex: et ts=2 :
351