xref: /dokuwiki/inc/Ajax.php (revision d3173fb207294aac3215e31596cf2e2a262bd5bd) 
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 $ID;
123        global $INFO;
124        global $INPUT;
125
126        $ID = cleanID($INPUT->post->str('id'));
127        if(empty($ID)) return;
128
129        $INFO = pageinfo();
130
131        $response = [
132            'errors' => [],
133            'lock' => '0',
134            'draft' => '',
135        ];
136        if(!$INFO['writable']) {
137            $response['errors'][] = 'Permission to write this page has been denied.';
138            echo json_encode($response);
139            return;
140        }
141
142        if(!checklock($ID)) {
143            lock($ID);
144            $response['lock'] = '1';
145        }
146
147        $draft = new Draft($ID, $INFO['client']);
148        if ($draft->saveDraft()) {
149            $response['draft'] = $draft->getDraftMessage();
150        } else {
151            $response['errors'] = array_merge($response['errors'], $draft->getErrors());
152        }
153        echo json_encode($response);
154    }
155
156    /**
157     * Delete a draft
158     *
159     * @author Andreas Gohr <andi@splitbrain.org>
160     */
161    protected function call_draftdel() {
162        global $INPUT;
163        $id = cleanID($INPUT->str('id'));
164        if(empty($id)) return;
165
166        $client = $_SERVER['REMOTE_USER'];
167        if(!$client) $client = clientIP(true);
168
169        $cname = getCacheName($client . $id, '.draft');
170        @unlink($cname);
171    }
172
173    /**
174     * Return subnamespaces for the Mediamanager
175     *
176     * @author Andreas Gohr <andi@splitbrain.org>
177     */
178    protected function call_medians() {
179        global $conf;
180        global $INPUT;
181
182        // wanted namespace
183        $ns = cleanID($INPUT->post->str('ns'));
184        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
185
186        $lvl = count(explode(':', $ns));
187
188        $data = array();
189        search($data, $conf['mediadir'], 'search_index', array('nofiles' => true), $dir);
190        foreach(array_keys($data) as $item) {
191            $data[$item]['level'] = $lvl + 1;
192        }
193        echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
194    }
195
196    /**
197     * Return list of files for the Mediamanager
198     *
199     * @author Andreas Gohr <andi@splitbrain.org>
200     */
201    protected function call_medialist() {
202        global $NS;
203        global $INPUT;
204
205        $NS = cleanID($INPUT->post->str('ns'));
206        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
207        if($INPUT->post->str('do') == 'media') {
208            tpl_mediaFileList();
209        } else {
210            tpl_mediaContent(true, $sort);
211        }
212    }
213
214    /**
215     * Return the content of the right column
216     * (image details) for the Mediamanager
217     *
218     * @author Kate Arzamastseva <pshns@ukr.net>
219     */
220    protected function call_mediadetails() {
221        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
222        $fullscreen = true;
223        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
224
225        $image = '';
226        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
227        if(isset($IMG)) $image = $IMG;
228        if(isset($JUMPTO)) $image = $JUMPTO;
229        $rev = false;
230        if(isset($REV) && !$JUMPTO) $rev = $REV;
231
232        html_msgarea();
233        tpl_mediaFileDetails($image, $rev);
234    }
235
236    /**
237     * Returns image diff representation for mediamanager
238     *
239     * @author Kate Arzamastseva <pshns@ukr.net>
240     */
241    protected function call_mediadiff() {
242        global $NS;
243        global $INPUT;
244
245        $image = '';
246        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
247        $NS = getNS($image);
248        $auth = auth_quickaclcheck("$NS:*");
249        media_diff($image, $NS, $auth, true);
250    }
251
252    /**
253     * Manages file uploads
254     *
255     * @author Kate Arzamastseva <pshns@ukr.net>
256     */
257    protected function call_mediaupload() {
258        global $NS, $MSG, $INPUT;
259
260        $id = '';
261        if($_FILES['qqfile']['tmp_name']) {
262            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
263        } elseif($INPUT->get->has('qqfile')) {
264            $id = $INPUT->get->str('qqfile');
265        }
266
267        $id = cleanID($id);
268
269        $NS = $INPUT->str('ns');
270        $ns = $NS . ':' . getNS($id);
271
272        $AUTH = auth_quickaclcheck("$ns:*");
273        if($AUTH >= AUTH_UPLOAD) {
274            io_createNamespace("$ns:xxx", 'media');
275        }
276
277        if($_FILES['qqfile']['error']) unset($_FILES['qqfile']);
278
279        $res = false;
280        if($_FILES['qqfile']['tmp_name']) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
281        if($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
282
283        if($res) {
284            $result = array(
285                'success' => true,
286                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
287                'id' => $NS . ':' . $id,
288                'ns' => $NS
289            );
290        } else {
291            $error = '';
292            if(isset($MSG)) {
293                foreach($MSG as $msg) {
294                    $error .= $msg['msg'];
295                }
296            }
297            $result = array(
298                'error' => $error,
299                'ns' => $NS
300            );
301        }
302        $json = new \JSON;
303        header('Content-Type: application/json');
304        echo $json->encode($result);
305    }
306
307    /**
308     * Return sub index for index view
309     *
310     * @author Andreas Gohr <andi@splitbrain.org>
311     */
312    protected function call_index() {
313        global $conf;
314        global $INPUT;
315
316        // wanted namespace
317        $ns = cleanID($INPUT->post->str('idx'));
318        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
319
320        $lvl = count(explode(':', $ns));
321
322        $data = array();
323        search($data, $conf['datadir'], 'search_index', array('ns' => $ns), $dir);
324        foreach(array_keys($data) as $item) {
325            $data[$item]['level'] = $lvl + 1;
326        }
327        echo html_buildlist($data, 'idx', 'html_list_index', 'html_li_index');
328    }
329
330    /**
331     * List matching namespaces and pages for the link wizard
332     *
333     * @author Andreas Gohr <gohr@cosmocode.de>
334     */
335    protected function call_linkwiz() {
336        global $conf;
337        global $lang;
338        global $INPUT;
339
340        $q = ltrim(trim($INPUT->post->str('q')), ':');
341        $id = noNS($q);
342        $ns = getNS($q);
343
344        $ns = cleanID($ns);
345        $id = cleanID($id);
346
347        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
348
349        $data = array();
350        if($q && !$ns) {
351
352            // use index to lookup matching pages
353            $pages = ft_pageLookup($id, true);
354
355            // result contains matches in pages and namespaces
356            // we now extract the matching namespaces to show
357            // them seperately
358            $dirs = array();
359
360            foreach($pages as $pid => $title) {
361                if(strpos(noNS($pid), $id) === false) {
362                    // match was in the namespace
363                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
364                } else {
365                    // it is a matching page, add it to the result
366                    $data[] = array(
367                        'id' => $pid,
368                        'title' => $title,
369                        'type' => 'f',
370                    );
371                }
372                unset($pages[$pid]);
373            }
374            foreach($dirs as $dir => $junk) {
375                $data[] = array(
376                    'id' => $dir,
377                    'type' => 'd',
378                );
379            }
380
381        } else {
382
383            $opts = array(
384                'depth' => 1,
385                'listfiles' => true,
386                'listdirs' => true,
387                'pagesonly' => true,
388                'firsthead' => true,
389                'sneakyacl' => $conf['sneaky_index'],
390            );
391            if($id) $opts['filematch'] = '^.*\/' . $id;
392            if($id) $opts['dirmatch'] = '^.*\/' . $id;
393            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
394
395            // add back to upper
396            if($ns) {
397                array_unshift(
398                    $data, array(
399                             'id' => getNS($ns),
400                             'type' => 'u',
401                         )
402                );
403            }
404        }
405
406        // fixme sort results in a useful way ?
407
408        if(!count($data)) {
409            echo $lang['nothingfound'];
410            exit;
411        }
412
413        // output the found data
414        $even = 1;
415        foreach($data as $item) {
416            $even *= -1; //zebra
417
418            if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id'] !== '') $item['id'] .= ':';
419            $link = wl($item['id']);
420
421            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
422
423            if($item['type'] == 'u') {
424                $name = $lang['upperns'];
425            } else {
426                $name = hsc($item['id']);
427            }
428
429            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
430
431            if(!blank($item['title'])) {
432                echo '<span>' . hsc($item['title']) . '</span>';
433            }
434            echo '</div>';
435        }
436
437    }
438
439}
440