xref: /dokuwiki/inc/Ajax.php (revision e05998d5d6388950e9732477c1bca8f3aff6f193) 
1<?php
2
3namespace dokuwiki;
4
5use dokuwiki\Extension\Event;
6use dokuwiki\Ui\MediaDiff;
7use dokuwiki\Ui\Index;
8use dokuwiki\Ui;
9use dokuwiki\Utf8\Sort;
10
11/**
12 * Manage all builtin AJAX calls
13 *
14 * @todo The calls should be refactored out to their own proper classes
15 * @package dokuwiki
16 */
17class Ajax
18{
19    /**
20     * Execute the given call
21     *
22     * @param string $call name of the ajax call
23     */
24    public function __construct($call)
25    {
26        $callfn = 'call' . ucfirst($call);
27        if (method_exists($this, $callfn)) {
28            $this->$callfn();
29        } else {
30            $evt = new Event('AJAX_CALL_UNKNOWN', $call);
31            if ($evt->advise_before()) {
32                echo "AJAX call '" . hsc($call) . "' unknown!\n";
33            } else {
34                $evt->advise_after();
35                unset($evt);
36            }
37        }
38    }
39
40    /**
41     * Searches for matching pagenames
42     *
43     * @author Andreas Gohr <andi@splitbrain.org>
44     */
45    protected function callQsearch()
46    {
47        global $lang;
48        global $INPUT;
49
50        $maxnumbersuggestions = 50;
51
52        $query = $INPUT->post->str('q');
53        if (empty($query)) $query = $INPUT->get->str('q');
54        if (empty($query)) return;
55
56        $query = urldecode($query);
57        $data = (new MetadataSearch)->pageLookup($query, true, useHeading('navigation'));
58
59        if ($data === []) return;
60
61        echo '<strong>' . $lang['quickhits'] . '</strong>';
62        echo '<ul>';
63        $counter = 0;
64        foreach ($data as $id => $title) {
65            if (useHeading('navigation')) {
66                $name = $title;
67            } else {
68                $ns = getNS($id);
69                if ($ns) {
70                    $name = noNS($id) . ' (' . $ns . ')';
71                } else {
72                    $name = $id;
73                }
74            }
75            echo '<li>' . html_wikilink(':' . $id, $name) . '</li>';
76
77            $counter++;
78            if ($counter > $maxnumbersuggestions) {
79                echo '<li>...</li>';
80                break;
81            }
82        }
83        echo '</ul>';
84    }
85
86    /**
87     * Support OpenSearch suggestions
88     *
89     * @link   http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions/1.0
90     * @author Mike Frysinger <vapier@gentoo.org>
91     */
92    protected function callSuggestions()
93    {
94        global $INPUT;
95
96        $query = cleanID($INPUT->post->str('q'));
97        if (empty($query)) $query = cleanID($INPUT->get->str('q'));
98        if (empty($query)) return;
99
100        $data = (new MetadataSearch)->pageLookup($query);
101        if ($data === []) return;
102        $data = array_keys($data);
103
104        // limit results to 15 hits
105        $data = array_slice($data, 0, 15);
106        $data = array_map('trim', $data);
107        $data = array_map('noNS', $data);
108        $data = array_unique($data);
109        Sort::sort($data);
110
111        /* now construct a json */
112        $suggestions = [
113            $query, // the original query
114            $data, // some suggestions
115            [], // no description
116            [], // no urls
117        ];
118
119        header('Content-Type: application/x-suggestions+json');
120        echo json_encode($suggestions, JSON_THROW_ON_ERROR);
121    }
122
123    /**
124     * Refresh a page lock and save draft
125     *
126     * Andreas Gohr <andi@splitbrain.org>
127     */
128    protected function callLock()
129    {
130        global $ID;
131        global $INFO;
132        global $INPUT;
133
134        $ID = cleanID($INPUT->post->str('id'));
135        if (empty($ID)) return;
136
137        $INFO = pageinfo();
138
139        $response = [
140            'errors' => [],
141            'lock' => '0',
142            'draft' => '',
143        ];
144        if (!$INFO['writable']) {
145            $response['errors'][] = 'Permission to write this page has been denied.';
146            echo json_encode($response);
147            return;
148        }
149
150        if (!checklock($ID)) {
151            lock($ID);
152            $response['lock'] = '1';
153        }
154
155        $draft = new Draft($ID, $INFO['client']);
156        if ($draft->saveDraft()) {
157            $response['draft'] = $draft->getDraftMessage();
158        } else {
159            $response['errors'] = array_merge($response['errors'], $draft->getErrors());
160        }
161        echo json_encode($response, JSON_THROW_ON_ERROR);
162    }
163
164    /**
165     * Delete a draft
166     *
167     * @author Andreas Gohr <andi@splitbrain.org>
168     */
169    protected function callDraftdel()
170    {
171        global $INPUT;
172        $id = cleanID($INPUT->str('id'));
173        if (empty($id)) return;
174
175        $client = $INPUT->server->str('REMOTE_USER');
176        if (!$client) $client = clientIP(true);
177
178        $draft = new Draft($id, $client);
179        if ($draft->isDraftAvailable() && checkSecurityToken()) {
180            $draft->deleteDraft();
181        }
182    }
183
184    /**
185     * Return subnamespaces for the Mediamanager
186     *
187     * @author Andreas Gohr <andi@splitbrain.org>
188     */
189    protected function callMedians()
190    {
191        global $conf;
192        global $INPUT;
193
194        // wanted namespace
195        $ns = cleanID($INPUT->post->str('ns'));
196        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
197
198        $lvl = count(explode(':', $ns));
199
200        $data = [];
201        search($data, $conf['mediadir'], 'search_index', ['nofiles' => true], $dir);
202        foreach (array_keys($data) as $item) {
203            $data[$item]['level'] = $lvl + 1;
204        }
205        echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
206    }
207
208    /**
209     * Return list of files for the Mediamanager
210     *
211     * @author Andreas Gohr <andi@splitbrain.org>
212     */
213    protected function callMedialist()
214    {
215        global $NS;
216        global $INPUT;
217
218        $NS = cleanID($INPUT->post->str('ns'));
219        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
220        if ($INPUT->post->str('do') == 'media') {
221            tpl_mediaFileList();
222        } else {
223            tpl_mediaContent(true, $sort);
224        }
225    }
226
227    /**
228     * Return the content of the right column
229     * (image details) for the Mediamanager
230     *
231     * @author Kate Arzamastseva <pshns@ukr.net>
232     */
233    protected function callMediadetails()
234    {
235        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
236        $fullscreen = true;
237        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
238
239        $image = '';
240        if ($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
241        if (isset($IMG)) $image = $IMG;
242        if (isset($JUMPTO)) $image = $JUMPTO;
243        $rev = false;
244        if (isset($REV) && !$JUMPTO) $rev = $REV;
245
246        html_msgarea();
247        tpl_mediaFileDetails($image, $rev);
248    }
249
250    /**
251     * Returns image diff representation for mediamanager
252     *
253     * @author Kate Arzamastseva <pshns@ukr.net>
254     */
255    protected function callMediadiff()
256    {
257        global $INPUT;
258
259        $image = '';
260        if ($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
261        (new MediaDiff($image))->preference('fromAjax', true)->show();
262    }
263
264    /**
265     * Manages file uploads
266     *
267     * @author Kate Arzamastseva <pshns@ukr.net>
268     */
269    protected function callMediaupload()
270    {
271        global $NS, $MSG, $INPUT;
272
273        $id = '';
274        if (isset($_FILES['qqfile']['tmp_name'])) {
275            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
276        } elseif ($INPUT->get->has('qqfile')) {
277            $id = $INPUT->get->str('qqfile');
278        }
279
280        $id = cleanID($id);
281
282        $NS = $INPUT->str('ns');
283        $ns = $NS . ':' . getNS($id);
284
285        $AUTH = auth_quickaclcheck("$ns:*");
286        if ($AUTH >= AUTH_UPLOAD) {
287            io_createNamespace("$ns:xxx", 'media');
288        }
289
290        if (isset($_FILES['qqfile']['error']) && $_FILES['qqfile']['error']) unset($_FILES['qqfile']);
291
292        $res = false;
293        if (isset($_FILES['qqfile']['tmp_name'])) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
294        if ($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
295
296        if ($res) {
297            $result = [
298                'success' => true,
299                'link' => media_managerURL(['ns' => $ns, 'image' => $NS . ':' . $id], '&'),
300                'id' => $NS . ':' . $id,
301                'ns' => $NS
302            ];
303        } else {
304            $error = '';
305            if (isset($MSG)) {
306                foreach ($MSG as $msg) {
307                    $error .= $msg['msg'];
308                }
309            }
310            $result = ['error' => $error, 'ns' => $NS];
311        }
312
313        header('Content-Type: application/json');
314        echo json_encode($result, JSON_THROW_ON_ERROR);
315    }
316
317    /**
318     * Return sub index for index view
319     *
320     * @author Andreas Gohr <andi@splitbrain.org>
321     */
322    protected function callIndex()
323    {
324        global $conf;
325        global $INPUT;
326
327        // wanted namespace
328        $ns = cleanID($INPUT->post->str('idx'));
329        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
330
331        $lvl = count(explode(':', $ns));
332
333        $data = [];
334        search($data, $conf['datadir'], 'search_index', ['ns' => $ns], $dir);
335        foreach (array_keys($data) as $item) {
336            $data[$item]['level'] = $lvl + 1;
337        }
338        $idx = new Index();
339        echo html_buildlist($data, 'idx', [$idx,'formatListItem'], [$idx,'tagListItem']);
340    }
341
342    /**
343     * List matching namespaces and pages for the link wizard
344     *
345     * @author Andreas Gohr <gohr@cosmocode.de>
346     */
347    protected function callLinkwiz()
348    {
349        global $conf;
350        global $lang;
351        global $INPUT;
352
353        $q = ltrim(trim($INPUT->post->str('q')), ':');
354        $id = noNS($q);
355        $ns = getNS($q);
356
357        $ns = cleanID($ns);
358        $id = cleanID($id);
359
360        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
361
362        $data = [];
363        if ($q !== '' && $ns === '') {
364            // use index to lookup matching pages
365            $pages = (new MetadataSearch)->pageLookup($id, true);
366
367            // If 'useheading' option is 'always' or 'content',
368            // search page titles with original query as well.
369            if ($conf['useheading'] == '1' || $conf['useheading'] == 'content') {
370                $pages = array_merge($pages, ft_pageLookup($q, true, true));
371                asort($pages, SORT_STRING);
372            }
373
374            // result contains matches in pages and namespaces
375            // we now extract the matching namespaces to show
376            // them seperately
377            $dirs = [];
378
379            foreach ($pages as $pid => $title) {
380                if (strpos(getNS($pid), $id) !== false) {
381                    // match was in the namespace
382                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
383                } else {
384                    // it is a matching page, add it to the result
385                    $data[] = ['id' => $pid, 'title' => $title, 'type' => 'f'];
386                }
387                unset($pages[$pid]);
388            }
389            foreach (array_keys($dirs) as $dir) {
390                $data[] = ['id' => $dir, 'type' => 'd'];
391            }
392        } else {
393            $opts = [
394                'depth' => 1,
395                'listfiles' => true,
396                'listdirs' => true,
397                'pagesonly' => true,
398                'firsthead' => true,
399                'sneakyacl' => $conf['sneaky_index']
400            ];
401            if ($id) $opts['filematch'] = '^.*\/' . $id;
402            if ($id) $opts['dirmatch'] = '^.*\/' . $id;
403            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
404
405            // add back to upper
406            if ($ns) {
407                array_unshift(
408                    $data,
409                    ['id' => getNS($ns), 'type' => 'u']
410                );
411            }
412        }
413
414        // fixme sort results in a useful way ?
415
416        if (!count($data)) {
417            echo $lang['nothingfound'];
418            exit;
419        }
420
421        // output the found data
422        $even = 1;
423        foreach ($data as $item) {
424            $even *= -1; //zebra
425
426            if (($item['type'] == 'd' || $item['type'] == 'u') && $item['id'] !== '') $item['id'] .= ':';
427            $link = wl($item['id']);
428
429            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
430
431            if ($item['type'] == 'u') {
432                $name = $lang['upperns'];
433            } else {
434                $name = hsc($item['id']);
435            }
436
437            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
438
439            if (!blank($item['title'])) {
440                echo '<span>' . hsc($item['title']) . '</span>';
441            }
442            echo '</div>';
443        }
444    }
445}
446