xref: /dokuwiki/inc/Ajax.php (revision 1ef673230f3aa9f7bd0e1e97350a6c868a9c0a9b) 
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        $draft = new Draft($id, $client);
172        if ($draft->isDraftAvailable() && checkSecurityToken()) {
173            $draft->deleteDraft();
174        }
175    }
176
177    /**
178     * Return subnamespaces for the Mediamanager
179     *
180     * @author Andreas Gohr <andi@splitbrain.org>
181     */
182    protected function callMedians() {
183        global $conf;
184        global $INPUT;
185
186        // wanted namespace
187        $ns = cleanID($INPUT->post->str('ns'));
188        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
189
190        $lvl = count(explode(':', $ns));
191
192        $data = array();
193        search($data, $conf['mediadir'], 'search_index', array('nofiles' => true), $dir);
194        foreach(array_keys($data) as $item) {
195            $data[$item]['level'] = $lvl + 1;
196        }
197        echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
198    }
199
200    /**
201     * Return list of files for the Mediamanager
202     *
203     * @author Andreas Gohr <andi@splitbrain.org>
204     */
205    protected function callMedialist() {
206        global $NS;
207        global $INPUT;
208
209        $NS = cleanID($INPUT->post->str('ns'));
210        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
211        if($INPUT->post->str('do') == 'media') {
212            tpl_mediaFileList();
213        } else {
214            tpl_mediaContent(true, $sort);
215        }
216    }
217
218    /**
219     * Return the content of the right column
220     * (image details) for the Mediamanager
221     *
222     * @author Kate Arzamastseva <pshns@ukr.net>
223     */
224    protected function callMediadetails() {
225        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
226        $fullscreen = true;
227        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
228
229        $image = '';
230        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
231        if(isset($IMG)) $image = $IMG;
232        if(isset($JUMPTO)) $image = $JUMPTO;
233        $rev = false;
234        if(isset($REV) && !$JUMPTO) $rev = $REV;
235
236        html_msgarea();
237        tpl_mediaFileDetails($image, $rev);
238    }
239
240    /**
241     * Returns image diff representation for mediamanager
242     *
243     * @author Kate Arzamastseva <pshns@ukr.net>
244     */
245    protected function callMediadiff() {
246        global $NS;
247        global $INPUT;
248
249        $image = '';
250        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
251        $NS = getNS($image);
252        $auth = auth_quickaclcheck("$NS:*");
253        media_diff($image, $NS, $auth, true);
254    }
255
256    /**
257     * Manages file uploads
258     *
259     * @author Kate Arzamastseva <pshns@ukr.net>
260     */
261    protected function callMediaupload() {
262        global $NS, $MSG, $INPUT;
263
264        $id = '';
265        if(isset($_FILES['qqfile']['tmp_name'])) {
266            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
267        } elseif($INPUT->get->has('qqfile')) {
268            $id = $INPUT->get->str('qqfile');
269        }
270
271        $id = cleanID($id);
272
273        $NS = $INPUT->str('ns');
274        $ns = $NS . ':' . getNS($id);
275
276        $AUTH = auth_quickaclcheck("$ns:*");
277        if($AUTH >= AUTH_UPLOAD) {
278            io_createNamespace("$ns:xxx", 'media');
279        }
280
281        if(isset($_FILES['qqfile']['error']) && $_FILES['qqfile']['error']) unset($_FILES['qqfile']);
282
283        $res = false;
284        if(isset($_FILES['qqfile']['tmp_name'])) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
285        if($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
286
287        if($res) {
288            $result = array(
289                'success' => true,
290                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
291                'id' => $NS . ':' . $id,
292                'ns' => $NS
293            );
294        } else {
295            $error = '';
296            if(isset($MSG)) {
297                foreach($MSG as $msg) {
298                    $error .= $msg['msg'];
299                }
300            }
301            $result = array(
302                'error' => $error,
303                'ns' => $NS
304            );
305        }
306
307        header('Content-Type: application/json');
308        echo json_encode($result);
309    }
310
311    /**
312     * Return sub index for index view
313     *
314     * @author Andreas Gohr <andi@splitbrain.org>
315     */
316    protected function callIndex() {
317        global $conf;
318        global $INPUT;
319
320        // wanted namespace
321        $ns = cleanID($INPUT->post->str('idx'));
322        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
323
324        $lvl = count(explode(':', $ns));
325
326        $data = array();
327        search($data, $conf['datadir'], 'search_index', array('ns' => $ns), $dir);
328        foreach (array_keys($data) as $item) {
329            $data[$item]['level'] = $lvl + 1;
330        }
331        $idx = new Ui\Index;
332        echo html_buildlist($data, 'idx', [$idx,'formatListItem'], [$idx,'tagListItem']);
333    }
334
335    /**
336     * List matching namespaces and pages for the link wizard
337     *
338     * @author Andreas Gohr <gohr@cosmocode.de>
339     */
340    protected function callLinkwiz() {
341        global $conf;
342        global $lang;
343        global $INPUT;
344
345        $q = ltrim(trim($INPUT->post->str('q')), ':');
346        $id = noNS($q);
347        $ns = getNS($q);
348
349        $ns = cleanID($ns);
350        $id = cleanID($id);
351
352        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
353
354        $data = array();
355        if($q !== '' && $ns === '') {
356
357            // use index to lookup matching pages
358            $pages = ft_pageLookup($id, true);
359
360            // result contains matches in pages and namespaces
361            // we now extract the matching namespaces to show
362            // them seperately
363            $dirs = array();
364
365            foreach($pages as $pid => $title) {
366                if(strpos(noNS($pid), $id) === false) {
367                    // match was in the namespace
368                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
369                } else {
370                    // it is a matching page, add it to the result
371                    $data[] = array(
372                        'id' => $pid,
373                        'title' => $title,
374                        'type' => 'f',
375                    );
376                }
377                unset($pages[$pid]);
378            }
379            foreach($dirs as $dir => $junk) {
380                $data[] = array(
381                    'id' => $dir,
382                    'type' => 'd',
383                );
384            }
385
386        } else {
387
388            $opts = array(
389                'depth' => 1,
390                'listfiles' => true,
391                'listdirs' => true,
392                'pagesonly' => true,
393                'firsthead' => true,
394                'sneakyacl' => $conf['sneaky_index'],
395            );
396            if($id) $opts['filematch'] = '^.*\/' . $id;
397            if($id) $opts['dirmatch'] = '^.*\/' . $id;
398            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
399
400            // add back to upper
401            if($ns) {
402                array_unshift(
403                    $data, array(
404                             'id' => getNS($ns),
405                             'type' => 'u',
406                         )
407                );
408            }
409        }
410
411        // fixme sort results in a useful way ?
412
413        if(!count($data)) {
414            echo $lang['nothingfound'];
415            exit;
416        }
417
418        // output the found data
419        $even = 1;
420        foreach($data as $item) {
421            $even *= -1; //zebra
422
423            if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id'] !== '') $item['id'] .= ':';
424            $link = wl($item['id']);
425
426            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
427
428            if($item['type'] == 'u') {
429                $name = $lang['upperns'];
430            } else {
431                $name = hsc($item['id']);
432            }
433
434            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
435
436            if(!blank($item['title'])) {
437                echo '<span>' . hsc($item['title']) . '</span>';
438            }
439            echo '</div>';
440        }
441
442    }
443
444}
445