1<?php
2
3namespace dokuwiki;
4
5use dokuwiki\Ui;
6use dokuwiki\Utf8\Sort;
7
8/**
9 * Manage all builtin AJAX calls
10 *
11 * @todo The calls should be refactored out to their own proper classes
12 * @package dokuwiki
13 */
14class Ajax {
15
16    /**
17     * Execute the given call
18     *
19     * @param string $call name of the ajax call
20     */
21    public function __construct($call) {
22        $callfn = 'call' . ucfirst($call);
23        if(method_exists($this, $callfn)) {
24            $this->$callfn();
25        } else {
26            $evt = new Extension\Event('AJAX_CALL_UNKNOWN', $call);
27            if($evt->advise_before()) {
28                print "AJAX call '" . hsc($call) . "' unknown!\n";
29            } else {
30                $evt->advise_after();
31                unset($evt);
32            }
33        }
34    }
35
36    /**
37     * Searches for matching pagenames
38     *
39     * @author Andreas Gohr <andi@splitbrain.org>
40     */
41    protected function callQsearch() {
42        global $lang;
43        global $INPUT;
44
45        $maxnumbersuggestions = 50;
46
47        $query = $INPUT->post->str('q');
48        if(empty($query)) $query = $INPUT->get->str('q');
49        if(empty($query)) return;
50
51        $query = urldecode($query);
52
53        $data = ft_pageLookup($query, true, useHeading('navigation'));
54
55        if(!count($data)) return;
56
57        print '<strong>' . $lang['quickhits'] . '</strong>';
58        print '<ul>';
59        $counter = 0;
60        foreach($data as $id => $title) {
61            if(useHeading('navigation')) {
62                $name = $title;
63            } else {
64                $ns = getNS($id);
65                if($ns) {
66                    $name = noNS($id) . ' (' . $ns . ')';
67                } else {
68                    $name = $id;
69                }
70            }
71            echo '<li>' . html_wikilink(':' . $id, $name) . '</li>';
72
73            $counter++;
74            if($counter > $maxnumbersuggestions) {
75                echo '<li>...</li>';
76                break;
77            }
78        }
79        print '</ul>';
80    }
81
82    /**
83     * Support OpenSearch suggestions
84     *
85     * @link   http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions/1.0
86     * @author Mike Frysinger <vapier@gentoo.org>
87     */
88    protected function callSuggestions() {
89        global $INPUT;
90
91        $query = cleanID($INPUT->post->str('q'));
92        if(empty($query)) $query = cleanID($INPUT->get->str('q'));
93        if(empty($query)) return;
94
95        $data = ft_pageLookup($query);
96        if(!count($data)) return;
97        $data = array_keys($data);
98
99        // limit results to 15 hits
100        $data = array_slice($data, 0, 15);
101        $data = array_map('trim', $data);
102        $data = array_map('noNS', $data);
103        $data = array_unique($data);
104        Sort::sort($data);
105
106        /* now construct a json */
107        $suggestions = array(
108            $query,  // the original query
109            $data,   // some suggestions
110            array(), // no description
111            array()  // no urls
112        );
113
114        header('Content-Type: application/x-suggestions+json');
115        print json_encode($suggestions);
116    }
117
118    /**
119     * Refresh a page lock and save draft
120     *
121     * Andreas Gohr <andi@splitbrain.org>
122     */
123    protected function callLock() {
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        $response = [
134            'errors' => [],
135            'lock' => '0',
136            'draft' => '',
137        ];
138        if(!$INFO['writable']) {
139            $response['errors'][] = 'Permission to write this page has been denied.';
140            echo json_encode($response);
141            return;
142        }
143
144        if(!checklock($ID)) {
145            lock($ID);
146            $response['lock'] = '1';
147        }
148
149        $draft = new Draft($ID, $INFO['client']);
150        if ($draft->saveDraft()) {
151            $response['draft'] = $draft->getDraftMessage();
152        } else {
153            $response['errors'] = array_merge($response['errors'], $draft->getErrors());
154        }
155        echo json_encode($response);
156    }
157
158    /**
159     * Delete a draft
160     *
161     * @author Andreas Gohr <andi@splitbrain.org>
162     */
163    protected function callDraftdel() {
164        global $INPUT;
165        $id = cleanID($INPUT->str('id'));
166        if(empty($id)) return;
167
168        $client = $_SERVER['REMOTE_USER'];
169        if(!$client) $client = clientIP(true);
170
171        $cname = getCacheName($client . $id, '.draft');
172        @unlink($cname);
173    }
174
175    /**
176     * Return subnamespaces for the Mediamanager
177     *
178     * @author Andreas Gohr <andi@splitbrain.org>
179     */
180    protected function callMedians() {
181        global $conf;
182        global $INPUT;
183
184        // wanted namespace
185        $ns = cleanID($INPUT->post->str('ns'));
186        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
187
188        $lvl = count(explode(':', $ns));
189
190        $data = array();
191        search($data, $conf['mediadir'], 'search_index', array('nofiles' => true), $dir);
192        foreach(array_keys($data) as $item) {
193            $data[$item]['level'] = $lvl + 1;
194        }
195        echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
196    }
197
198    /**
199     * Return list of files for the Mediamanager
200     *
201     * @author Andreas Gohr <andi@splitbrain.org>
202     */
203    protected function callMedialist() {
204        global $NS;
205        global $INPUT;
206
207        $NS = cleanID($INPUT->post->str('ns'));
208        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
209        if($INPUT->post->str('do') == 'media') {
210            tpl_mediaFileList();
211        } else {
212            tpl_mediaContent(true, $sort);
213        }
214    }
215
216    /**
217     * Return the content of the right column
218     * (image details) for the Mediamanager
219     *
220     * @author Kate Arzamastseva <pshns@ukr.net>
221     */
222    protected function callMediadetails() {
223        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
224        $fullscreen = true;
225        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
226
227        $image = '';
228        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
229        if(isset($IMG)) $image = $IMG;
230        if(isset($JUMPTO)) $image = $JUMPTO;
231        $rev = false;
232        if(isset($REV) && !$JUMPTO) $rev = $REV;
233
234        html_msgarea();
235        tpl_mediaFileDetails($image, $rev);
236    }
237
238    /**
239     * Returns image diff representation for mediamanager
240     *
241     * @author Kate Arzamastseva <pshns@ukr.net>
242     */
243    protected function callMediadiff() {
244        global $NS;
245        global $INPUT;
246
247        $image = '';
248        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
249        $NS = getNS($image);
250        $auth = auth_quickaclcheck("$NS:*");
251        media_diff($image, $NS, $auth, true);
252    }
253
254    /**
255     * Manages file uploads
256     *
257     * @author Kate Arzamastseva <pshns@ukr.net>
258     */
259    protected function callMediaupload() {
260        global $NS, $MSG, $INPUT;
261
262        $id = '';
263        if(isset($_FILES['qqfile']['tmp_name'])) {
264            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
265        } elseif($INPUT->get->has('qqfile')) {
266            $id = $INPUT->get->str('qqfile');
267        }
268
269        $id = cleanID($id);
270
271        $NS = $INPUT->str('ns');
272        $ns = $NS . ':' . getNS($id);
273
274        $AUTH = auth_quickaclcheck("$ns:*");
275        if($AUTH >= AUTH_UPLOAD) {
276            io_createNamespace("$ns:xxx", 'media');
277        }
278
279        if(isset($_FILES['qqfile']['error']) && $_FILES['qqfile']['error']) unset($_FILES['qqfile']);
280
281        $res = false;
282        if(isset($_FILES['qqfile']['tmp_name'])) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
283        if($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
284
285        if($res) {
286            $result = array(
287                'success' => true,
288                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
289                'id' => $NS . ':' . $id,
290                'ns' => $NS
291            );
292        } else {
293            $error = '';
294            if(isset($MSG)) {
295                foreach($MSG as $msg) {
296                    $error .= $msg['msg'];
297                }
298            }
299            $result = array(
300                'error' => $error,
301                'ns' => $NS
302            );
303        }
304
305        header('Content-Type: application/json');
306        echo json_encode($result);
307    }
308
309    /**
310     * Return sub index for index view
311     *
312     * @author Andreas Gohr <andi@splitbrain.org>
313     */
314    protected function callIndex() {
315        global $conf;
316        global $INPUT;
317
318        // wanted namespace
319        $ns = cleanID($INPUT->post->str('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        $idx = new Ui\Index;
330        echo html_buildlist($data, 'idx', [$idx,'formatListItem'], [$idx,'tagListItem']);
331    }
332
333    /**
334     * List matching namespaces and pages for the link wizard
335     *
336     * @author Andreas Gohr <gohr@cosmocode.de>
337     */
338    protected function callLinkwiz() {
339        global $conf;
340        global $lang;
341        global $INPUT;
342
343        $q = ltrim(trim($INPUT->post->str('q')), ':');
344        $id = noNS($q);
345        $ns = getNS($q);
346
347        $ns = cleanID($ns);
348        $id = cleanID($id);
349
350        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
351
352        $data = array();
353        if($q !== '' && $ns === '') {
354
355            // use index to lookup matching pages
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(
401                    $data, array(
402                             'id' => getNS($ns),
403                             'type' => 'u',
404                         )
405                );
406            }
407        }
408
409        // fixme sort results in a useful way ?
410
411        if(!count($data)) {
412            echo $lang['nothingfound'];
413            exit;
414        }
415
416        // output the found data
417        $even = 1;
418        foreach($data as $item) {
419            $even *= -1; //zebra
420
421            if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id'] !== '') $item['id'] .= ':';
422            $link = wl($item['id']);
423
424            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
425
426            if($item['type'] == 'u') {
427                $name = $lang['upperns'];
428            } else {
429                $name = hsc($item['id']);
430            }
431
432            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
433
434            if(!blank($item['title'])) {
435                echo '<span>' . hsc($item['title']) . '</span>';
436            }
437            echo '</div>';
438        }
439
440    }
441
442}
443