xref: /dokuwiki/inc/Ajax.php (revision daea826341a22e7d0920e9ca4d4c04c11cd98bfe) 
1<?php
2
3namespace dokuwiki;
4
5/**
6 * Manage all builtin AJAX calls
7 *
8 * @todo The calls should be refactored out to their own proper classes
9 * @package dokuwiki
10 */
11class Ajax {
12
13    /**
14     * Execute the given call
15     *
16     * @param string $call name of the ajax call
17     */
18    public function __construct($call) {
19        $callfn = 'call_' . $call;
20        if(method_exists($this, $callfn)) {
21            $this->$callfn();
22        } else {
23            $evt = new \Doku_Event('AJAX_CALL_UNKNOWN', $call);
24            if($evt->advise_before()) {
25                print "AJAX call '" . hsc($call) . "' unknown!\n";
26            } else {
27                $evt->advise_after();
28                unset($evt);
29            }
30        }
31    }
32
33    /**
34     * Searches for matching pagenames
35     *
36     * @author Andreas Gohr <andi@splitbrain.org>
37     */
38    protected function call_qsearch() {
39        global $lang;
40        global $INPUT;
41
42        $maxnumbersuggestions = 50;
43
44        $query = $INPUT->post->str('q');
45        if(empty($query)) $query = $INPUT->get->str('q');
46        if(empty($query)) return;
47
48        $query = urldecode($query);
49
50        $data = ft_pageLookup($query, true, useHeading('navigation'));
51
52        if(!count($data)) return;
53
54        print '<strong>' . $lang['quickhits'] . '</strong>';
55        print '<ul>';
56        $counter = 0;
57        foreach($data as $id => $title) {
58            if(useHeading('navigation')) {
59                $name = $title;
60            } else {
61                $ns = getNS($id);
62                if($ns) {
63                    $name = noNS($id) . ' (' . $ns . ')';
64                } else {
65                    $name = $id;
66                }
67            }
68            echo '<li>' . html_wikilink(':' . $id, $name) . '</li>';
69
70            $counter++;
71            if($counter > $maxnumbersuggestions) {
72                echo '<li>...</li>';
73                break;
74            }
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     */
85    protected function call_suggestions() {
86        global $INPUT;
87
88        $query = cleanID($INPUT->post->str('q'));
89        if(empty($query)) $query = cleanID($INPUT->get->str('q'));
90        if(empty($query)) return;
91
92        $data = ft_pageLookup($query);
93        if(!count($data)) return;
94        $data = array_keys($data);
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     */
121    protected function call_lock() {
122        global $conf;
123        global $lang;
124        global $ID;
125        global $INFO;
126        global $INPUT;
127
128        $ID = cleanID($INPUT->post->str('id'));
129        if(empty($ID)) return;
130
131        $INFO = pageinfo();
132
133        if(!$INFO['writable']) {
134            echo 'Permission denied';
135            return;
136        }
137
138        if(!checklock($ID)) {
139            lock($ID);
140            echo 1;
141        }
142
143        if($conf['usedraft'] && $INPUT->post->str('wikitext')) {
144            $client = $_SERVER['REMOTE_USER'];
145            if(!$client) $client = clientIP(true);
146
147            $draft = array(
148                'id' => $ID,
149                'prefix' => substr($INPUT->post->str('prefix'), 0, -1),
150                'text' => $INPUT->post->str('wikitext'),
151                'suffix' => $INPUT->post->str('suffix'),
152                'date' => $INPUT->post->int('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     */
168    protected function call_draftdel() {
169        global $INPUT;
170        $id = cleanID($INPUT->str('id'));
171        if(empty($id)) return;
172
173        $client = $_SERVER['REMOTE_USER'];
174        if(!$client) $client = clientIP(true);
175
176        $cname = getCacheName($client . $id, '.draft');
177        @unlink($cname);
178    }
179
180    /**
181     * Return subnamespaces for the Mediamanager
182     *
183     * @author Andreas Gohr <andi@splitbrain.org>
184     */
185    protected function call_medians() {
186        global $conf;
187        global $INPUT;
188
189        // wanted namespace
190        $ns = cleanID($INPUT->post->str('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     */
208    protected function call_medialist() {
209        global $NS;
210        global $INPUT;
211
212        $NS = cleanID($INPUT->post->str('ns'));
213        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
214        if($INPUT->post->str('do') == 'media') {
215            tpl_mediaFileList();
216        } else {
217            tpl_mediaContent(true, $sort);
218        }
219    }
220
221    /**
222     * Return the content of the right column
223     * (image details) for the Mediamanager
224     *
225     * @author Kate Arzamastseva <pshns@ukr.net>
226     */
227    protected function call_mediadetails() {
228        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
229        $fullscreen = true;
230        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
231
232        $image = '';
233        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
234        if(isset($IMG)) $image = $IMG;
235        if(isset($JUMPTO)) $image = $JUMPTO;
236        $rev = false;
237        if(isset($REV) && !$JUMPTO) $rev = $REV;
238
239        html_msgarea();
240        tpl_mediaFileDetails($image, $rev);
241    }
242
243    /**
244     * Returns image diff representation for mediamanager
245     *
246     * @author Kate Arzamastseva <pshns@ukr.net>
247     */
248    protected function call_mediadiff() {
249        global $NS;
250        global $INPUT;
251
252        $image = '';
253        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
254        $NS = getNS($image);
255        $auth = auth_quickaclcheck("$NS:*");
256        media_diff($image, $NS, $auth, true);
257    }
258
259    /**
260     * Manages file uploads
261     *
262     * @author Kate Arzamastseva <pshns@ukr.net>
263     */
264    protected function call_mediaupload() {
265        global $NS, $MSG, $INPUT;
266
267        $id = '';
268        if($_FILES['qqfile']['tmp_name']) {
269            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
270        } elseif($INPUT->get->has('qqfile')) {
271            $id = $INPUT->get->str('qqfile');
272        }
273
274        $id = cleanID($id);
275
276        $NS = $INPUT->str('ns');
277        $ns = $NS . ':' . getNS($id);
278
279        $AUTH = auth_quickaclcheck("$ns:*");
280        if($AUTH >= AUTH_UPLOAD) {
281            io_createNamespace("$ns:xxx", 'media');
282        }
283
284        if($_FILES['qqfile']['error']) unset($_FILES['qqfile']);
285
286        $res = false;
287        if($_FILES['qqfile']['tmp_name']) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
288        if($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
289
290        if($res) {
291            $result = array(
292                'success' => true,
293                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
294                'id' => $NS . ':' . $id,
295                'ns' => $NS
296            );
297        } else {
298            $error = '';
299            if(isset($MSG)) {
300                foreach($MSG as $msg) {
301                    $error .= $msg['msg'];
302                }
303            }
304            $result = array(
305                'error' => $error,
306                'ns' => $NS
307            );
308        }
309        $json = new \JSON;
310        header('Content-Type: application/json');
311        echo $json->encode($result);
312    }
313
314    /**
315     * Return sub index for index view
316     *
317     * @author Andreas Gohr <andi@splitbrain.org>
318     */
319    protected function call_index() {
320        global $conf;
321        global $INPUT;
322
323        // wanted namespace
324        $ns = cleanID($INPUT->post->str('idx'));
325        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
326
327        $lvl = count(explode(':', $ns));
328
329        $data = array();
330        search($data, $conf['datadir'], 'search_index', array('ns' => $ns), $dir);
331        foreach(array_keys($data) as $item) {
332            $data[$item]['level'] = $lvl + 1;
333        }
334        echo html_buildlist($data, 'idx', 'html_list_index', 'html_li_index');
335    }
336
337    /**
338     * List matching namespaces and pages for the link wizard
339     *
340     * @author Andreas Gohr <gohr@cosmocode.de>
341     */
342    protected function call_linkwiz() {
343        global $conf;
344        global $lang;
345        global $INPUT;
346
347        $q = ltrim(trim($INPUT->post->str('q')), ':');
348        $id = noNS($q);
349        $ns = getNS($q);
350
351        $ns = cleanID($ns);
352        $id = cleanID($id);
353
354        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
355
356        $data = array();
357        if($q && !$ns) {
358
359            // use index to lookup matching pages
360            $pages = ft_pageLookup($id, true);
361
362            // result contains matches in pages and namespaces
363            // we now extract the matching namespaces to show
364            // them seperately
365            $dirs = array();
366
367            foreach($pages as $pid => $title) {
368                if(strpos(noNS($pid), $id) === false) {
369                    // match was in the namespace
370                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
371                } else {
372                    // it is a matching page, add it to the result
373                    $data[] = array(
374                        'id' => $pid,
375                        'title' => $title,
376                        'type' => 'f',
377                    );
378                }
379                unset($pages[$pid]);
380            }
381            foreach($dirs as $dir => $junk) {
382                $data[] = array(
383                    'id' => $dir,
384                    'type' => 'd',
385                );
386            }
387
388        } else {
389
390            $opts = array(
391                'depth' => 1,
392                'listfiles' => true,
393                'listdirs' => true,
394                'pagesonly' => true,
395                'firsthead' => true,
396                'sneakyacl' => $conf['sneaky_index'],
397            );
398            if($id) $opts['filematch'] = '^.*\/' . $id;
399            if($id) $opts['dirmatch'] = '^.*\/' . $id;
400            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
401
402            // add back to upper
403            if($ns) {
404                array_unshift(
405                    $data, array(
406                             'id' => getNS($ns),
407                             'type' => 'u',
408                         )
409                );
410            }
411        }
412
413        // fixme sort results in a useful way ?
414
415        if(!count($data)) {
416            echo $lang['nothingfound'];
417            exit;
418        }
419
420        // output the found data
421        $even = 1;
422        foreach($data as $item) {
423            $even *= -1; //zebra
424
425            if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
426            $link = wl($item['id']);
427
428            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
429
430            if($item['type'] == 'u') {
431                $name = $lang['upperns'];
432            } else {
433                $name = hsc($item['id']);
434            }
435
436            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
437
438            if(!blank($item['title'])) {
439                echo '<span>' . hsc($item['title']) . '</span>';
440            }
441            echo '</div>';
442        }
443
444    }
445
446}
447