xref: /dokuwiki/lib/exe/ajax.php (revision c0c4ef9875d90979ed9d31ea1b6f2866aecaf565) 
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) && $HTTP_RAW_POST_DATA){
11  parse_str($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 = $_POST['call'];
25else if(isset($_GET['call']))
26  $call = $_GET['call'];
27else
28  exit;
29
30$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  $query = cleanID($_POST['q']);
54  if(empty($query)) $query = cleanID($_GET['q']);
55  if(empty($query)) return;
56
57  $data = array();
58  $data = ft_pageLookup($query);
59
60  if(!count($data)) return;
61
62  print '<strong>'.$lang['quickhits'].'</strong>';
63  print '<ul>';
64  foreach($data as $id){
65    print '<li>';
66    $ns = getNS($id);
67    if($ns){
68      $name = shorten(noNS($id), ' ('.$ns.')',30);
69    }else{
70      $name = $id;
71    }
72    print html_wikilink(':'.$id,$name);
73    print '</li>';
74  }
75  print '</ul>';
76}
77
78/**
79 * Support OpenSearch suggestions
80 *
81 * @link   http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions/1.0
82 * @author Mike Frysinger <vapier@gentoo.org>
83 */
84function ajax_suggestions() {
85  global $conf;
86  global $lang;
87
88  $query = cleanID($_POST['q']);
89  if(empty($query)) $query = cleanID($_GET['q']);
90  if(empty($query)) return;
91
92  $data = array();
93  $data = ft_pageLookup($query);
94  if(!count($data)) return;
95
96  // limit results to 15 hits
97  $data = array_slice($data, 0, 15);
98  $data = array_map('trim',$data);
99  $data = array_map('noNS',$data);
100  $data = array_unique($data);
101  sort($data);
102
103  /* now construct a json */
104  $suggestions = array(
105    $query,  // the original query
106    $data,   // some suggestions
107    array(), // no description
108    array()  // no urls
109  );
110  $json = new JSON();
111
112  header('Content-Type: application/x-suggestions+json');
113  print $json->encode($suggestions);
114}
115
116/**
117 * Refresh a page lock and save draft
118 *
119 * Andreas Gohr <andi@splitbrain.org>
120 */
121function ajax_lock(){
122  global $conf;
123  global $lang;
124  $id = cleanID($_POST['id']);
125  if(empty($id)) return;
126
127  if(!checklock($id)){
128    lock($id);
129    echo 1;
130  }
131
132  if($conf['usedraft'] && $_POST['wikitext']){
133    $client = $_SERVER['REMOTE_USER'];
134    if(!$client) $client = clientIP(true);
135
136    $draft = array('id'     => $id,
137                   'prefix' => $_POST['prefix'],
138                   'text'   => $_POST['wikitext'],
139                   'suffix' => $_POST['suffix'],
140                   'date'   => $_POST['date'],
141                   'client' => $client,
142                  );
143    $cname = getCacheName($draft['client'].$id,'.draft');
144    if(io_saveFile($cname,serialize($draft))){
145      echo $lang['draftdate'].' '.dformat();
146    }
147  }
148
149}
150
151/**
152 * Delete a draft
153 *
154 * @author Andreas Gohr <andi@splitbrain.org>
155 */
156function ajax_draftdel(){
157  $id = cleanID($_POST['id']);
158  if(empty($id)) return;
159
160  $client = $_SERVER['REMOTE_USER'];
161  if(!$client) $client = clientIP(true);
162
163  $cname = getCacheName($client.$id,'.draft');
164  @unlink($cname);
165}
166
167/**
168 * Return subnamespaces for the Mediamanager
169 *
170 * @author Andreas Gohr <andi@splitbrain.org>
171 */
172function ajax_medians(){
173  global $conf;
174
175  // wanted namespace
176  $ns  = cleanID($_POST['ns']);
177  $dir  = utf8_encodeFN(str_replace(':','/',$ns));
178
179  $lvl = count(explode(':',$ns));
180
181  $data = array();
182  search($data,$conf['mediadir'],'search_index',array('nofiles' => true),$dir);
183  foreach($data as $item){
184    $item['level'] = $lvl+1;
185    echo media_nstree_li($item);
186    echo media_nstree_item($item);
187    echo '</li>';
188  }
189}
190
191/**
192 * Return list of files for the Mediamanager
193 *
194 * @author Andreas Gohr <andi@splitbrain.org>
195 */
196function ajax_medialist(){
197  global $conf;
198  global $NS;
199
200  $NS = $_POST['ns'];
201  tpl_mediaContent(true);
202}
203
204/**
205 * Return sub index for index view
206 *
207 * @author Andreas Gohr <andi@splitbrain.org>
208 */
209function ajax_index(){
210  global $conf;
211
212  // wanted namespace
213  $ns  = cleanID($_POST['idx']);
214  $dir  = utf8_encodeFN(str_replace(':','/',$ns));
215
216  $lvl = count(explode(':',$ns));
217
218  $data = array();
219  search($data,$conf['datadir'],'search_index',array('ns' => $ns),$dir);
220  foreach($data as $item){
221    $item['level'] = $lvl+1;
222    echo html_li_index($item);
223    echo '<div class="li">';
224    echo html_list_index($item);
225    echo '</div>';
226    echo '</li>';
227  }
228}
229
230/**
231 * List matching namespaces and pages for the link wizard
232 *
233 * @author Andreas Gohr <gohr@cosmocode.de>
234 */
235function ajax_linkwiz(){
236  global $conf;
237  global $lang;
238
239  $q  = ltrim($_POST['q'],':');
240  $id = noNS($q);
241  $ns = getNS($q);
242
243  $ns = cleanID($ns);
244  $id = cleanID($id);
245
246  $nsd  = utf8_encodeFN(str_replace(':','/',$ns));
247  $idd  = utf8_encodeFN(str_replace(':','/',$id));
248
249  $data = array();
250  if($q && !$ns){
251
252    // use index to lookup matching pages
253    $pages = array();
254    $pages = ft_pageLookup($id,false);
255
256    // result contains matches in pages and namespaces
257    // we now extract the matching namespaces to show
258    // them seperately
259    $dirs  = array();
260    $count = count($pages);
261    for($i=0; $i<$count; $i++){
262      if(strpos(noNS($pages[$i]),$id) === false){
263        // match was in the namespace
264        $dirs[getNS($pages[$i])] = 1; // assoc array avoids dupes
265      }else{
266        // it is a matching page, add it to the result
267        $data[] = array(
268          'id'    => $pages[$i],
269          'title' => p_get_first_heading($pages[$i],false),
270          'type'  => 'f',
271        );
272      }
273      unset($pages[$i]);
274    }
275    foreach($dirs as $dir => $junk){
276      $data[] = array(
277        'id'   => $dir,
278        'type' => 'd',
279      );
280    }
281
282  }else{
283
284    $opts = array(
285      'depth' => 1,
286      'listfiles' => true,
287      'listdirs'  => true,
288      'pagesonly' => true,
289      'firsthead' => true,
290      'sneakyacl' => $conf['sneaky_index'],
291    );
292    if($id) $opts['filematch'] = '^.*\/'.$id;
293    if($id) $opts['dirmatch']  = '^.*\/'.$id;
294    search($data,$conf['datadir'],'search_universal',$opts,$nsd);
295
296    // add back to upper
297    if($ns){
298        array_unshift($data,array(
299            'id'   => getNS($ns),
300            'type' => 'u',
301        ));
302    }
303  }
304
305  // fixme sort results in a useful way ?
306
307  if(!count($data)){
308    echo $lang['nothingfound'];
309    exit;
310  }
311
312  // output the found data
313  $even = 1;
314  foreach($data as $item){
315    $even *= -1; //zebra
316
317    if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
318    $link = wl($item['id']);
319
320    echo '<div class="'.(($even > 0)?'even':'odd').' type_'.$item['type'].'">';
321
322
323    if($item['type'] == 'u'){
324        $name = $lang['upperns'];
325    }else{
326        $name = htmlspecialchars($item['id']);
327    }
328
329    echo '<a href="'.$link.'" title="'.htmlspecialchars($item['id']).'" class="wikilink1">'.$name.'</a>';
330
331    if($item['title']){
332      echo '<span>'.htmlspecialchars($item['title']).'</span>';
333    }
334    echo '</div>';
335  }
336
337}
338
339//Setup VIM: ex: et ts=2 enc=utf-8 :
340