xref: /dokuwiki/inc/Ajax.php (revision 15f699ac4db38c7098b4ae4cd0782dff13d46637) 
1<?php
2
3namespace dokuwiki;
4
5use dokuwiki\Search\MetadataSearch;
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    {
23        $callfn = 'call' . ucfirst($call);
24        if (method_exists($this, $callfn)) {
25            $this->$callfn();
26        } else {
27            $evt = new Extension\Event('AJAX_CALL_UNKNOWN', $call);
28            if ($evt->advise_before()) {
29                print "AJAX call '" . hsc($call) . "' unknown!\n";
30            } else {
31                $evt->advise_after();
32                unset($evt);
33            }
34        }
35    }
36
37    /**
38     * Searches for matching pagenames
39     *
40     * @author Andreas Gohr <andi@splitbrain.org>
41     */
42    protected function callQsearch()
43    {
44        global $lang;
45        global $INPUT;
46
47        $maxnumbersuggestions = 50;
48
49        $query = $INPUT->post->str('q');
50        if (empty($query)) $query = $INPUT->get->str('q');
51        if (empty($query)) return;
52
53        $query = urldecode($query);
54
55        $MetadataSearch = MetadataSearch::getInstance();
56        $data = $MetadataSearch->pageLookup($query, true, useHeading('navigation'));
57
58        if (!count($data)) return;
59
60        print '<strong>' . $lang['quickhits'] . '</strong>';
61        print '<ul>';
62        $counter = 0;
63        foreach ($data as $id => $title) {
64            if (useHeading('navigation')) {
65                $name = $title;
66            } else {
67                $ns = getNS($id);
68                if ($ns) {
69                    $name = noNS($id) . ' (' . $ns . ')';
70                } else {
71                    $name = $id;
72                }
73            }
74            echo '<li>' . html_wikilink(':' . $id, $name) . '</li>';
75
76            $counter++;
77            if ($counter > $maxnumbersuggestions) {
78                echo '<li>...</li>';
79                break;
80            }
81        }
82        print '</ul>';
83    }
84
85    /**
86     * Support OpenSearch suggestions
87     *
88     * @link   http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions/1.0
89     * @author Mike Frysinger <vapier@gentoo.org>
90     */
91    protected function callSuggestions()
92    {
93        global $INPUT;
94
95        $query = cleanID($INPUT->post->str('q'));
96        if (empty($query)) $query = cleanID($INPUT->get->str('q'));
97        if (empty($query)) return;
98
99        $MetadataSearch = MetadataSearch::getInstance();
100        $data = $MetadataSearch->pageLookup($query);
101        if (!count($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 = array(
113            $query,  // the original query
114            $data,   // some suggestions
115            array(), // no description
116            array()  // no urls
117        );
118
119        header('Content-Type: application/x-suggestions+json');
120        print json_encode($suggestions);
121    }
122
123    /**
124     * Refresh a page lock and save draft
125     *
126     * Andreas Gohr <andi@splitbrain.org>
127     */
128    protected function callLock() {
129        global $ID;
130        global $INFO;
131        global $INPUT;
132
133        $ID = cleanID($INPUT->post->str('id'));
134        if (empty($ID)) return;
135
136        $INFO = pageinfo();
137
138        $response = [
139            'errors' => [],
140            'lock' => '0',
141            'draft' => '',
142        ];
143        if (!$INFO['writable']) {
144            $response['errors'][] = 'Permission to write this page has been denied.';
145            echo json_encode($response);
146            return;
147        }
148
149        if (!checklock($ID)) {
150            lock($ID);
151            $response['lock'] = '1';
152        }
153
154        $draft = new Draft($ID, $INFO['client']);
155        if ($draft->saveDraft()) {
156            $response['draft'] = $draft->getDraftMessage();
157        } else {
158            $response['errors'] = array_merge($response['errors'], $draft->getErrors());
159        }
160        echo json_encode($response);
161    }
162
163    /**
164     * Delete a draft
165     *
166     * @author Andreas Gohr <andi@splitbrain.org>
167     */
168    protected function callDraftdel()
169    {
170        global $INPUT;
171        $id = cleanID($INPUT->str('id'));
172        if (empty($id)) return;
173
174        $client = $_SERVER['REMOTE_USER'];
175        if (!$client) $client = clientIP(true);
176
177        $cname = getCacheName($client . $id, '.draft');
178        @unlink($cname);
179    }
180
181    /**
182     * Return subnamespaces for the Mediamanager
183     *
184     * @author Andreas Gohr <andi@splitbrain.org>
185     */
186    protected function callMedians()
187    {
188        global $conf;
189        global $INPUT;
190
191        // wanted namespace
192        $ns = cleanID($INPUT->post->str('ns'));
193        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
194
195        $lvl = count(explode(':', $ns));
196
197        $data = array();
198        search($data, $conf['mediadir'], 'search_index', array('nofiles' => true), $dir);
199        foreach (array_keys($data) as $item) {
200            $data[$item]['level'] = $lvl + 1;
201        }
202        echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
203    }
204
205    /**
206     * Return list of files for the Mediamanager
207     *
208     * @author Andreas Gohr <andi@splitbrain.org>
209     */
210    protected function callMedialist() {
211        global $NS;
212        global $INPUT;
213
214        $NS = cleanID($INPUT->post->str('ns'));
215        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
216        if ($INPUT->post->str('do') == 'media') {
217            tpl_mediaFileList();
218        } else {
219            tpl_mediaContent(true, $sort);
220        }
221    }
222
223    /**
224     * Return the content of the right column
225     * (image details) for the Mediamanager
226     *
227     * @author Kate Arzamastseva <pshns@ukr.net>
228     */
229    protected function callMediadetails() {
230        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
231        $fullscreen = true;
232        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
233
234        $image = '';
235        if ($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
236        if (isset($IMG)) $image = $IMG;
237        if (isset($JUMPTO)) $image = $JUMPTO;
238        $rev = false;
239        if (isset($REV) && !$JUMPTO) $rev = $REV;
240
241        html_msgarea();
242        tpl_mediaFileDetails($image, $rev);
243    }
244
245    /**
246     * Returns image diff representation for mediamanager
247     *
248     * @author Kate Arzamastseva <pshns@ukr.net>
249     */
250    protected function callMediadiff()
251    {
252        global $NS;
253        global $INPUT;
254
255        $image = '';
256        if ($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
257        $NS = getNS($image);
258        $auth = auth_quickaclcheck("$NS:*");
259        media_diff($image, $NS, $auth, true);
260    }
261
262    /**
263     * Manages file uploads
264     *
265     * @author Kate Arzamastseva <pshns@ukr.net>
266     */
267    protected function callMediaupload() {
268        global $NS, $MSG, $INPUT;
269
270        $id = '';
271        if (isset($_FILES['qqfile']['tmp_name'])) {
272            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
273        } elseif ($INPUT->get->has('qqfile')) {
274            $id = $INPUT->get->str('qqfile');
275        }
276
277        $id = cleanID($id);
278
279        $NS = $INPUT->str('ns');
280        $ns = $NS . ':' . getNS($id);
281
282        $AUTH = auth_quickaclcheck("$ns:*");
283        if ($AUTH >= AUTH_UPLOAD) {
284            io_createNamespace("$ns:xxx", 'media');
285        }
286
287        if (isset($_FILES['qqfile']['error']) && $_FILES['qqfile']['error']) unset($_FILES['qqfile']);
288
289        $res = false;
290        if (isset($_FILES['qqfile']['tmp_name'])) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
291        if ($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
292
293        if ($res) {
294            $result = array(
295                'success' => true,
296                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
297                'id' => $NS . ':' . $id,
298                'ns' => $NS
299            );
300        } else {
301            $error = '';
302            if (isset($MSG)) {
303                foreach ($MSG as $msg) {
304                    $error .= $msg['msg'];
305                }
306            }
307            $result = array(
308                'error' => $error,
309                'ns' => $NS
310            );
311        }
312
313        header('Content-Type: application/json');
314        echo json_encode($result);
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        $data = array();
334        search($data, $conf['datadir'], 'search_index', array('ns' => $ns), $dir);
335        foreach (array_keys($data) as $item) {
336            $data[$item]['level'] = $lvl + 1;
337        }
338        echo html_buildlist($data, 'idx', 'html_list_index', 'html_li_index');
339    }
340
341    /**
342     * List matching namespaces and pages for the link wizard
343     *
344     * @author Andreas Gohr <gohr@cosmocode.de>
345     */
346    protected function callLinkwiz()
347    {
348        global $conf;
349        global $lang;
350        global $INPUT;
351
352        $q = ltrim(trim($INPUT->post->str('q')), ':');
353        $id = noNS($q);
354        $ns = getNS($q);
355
356        $ns = cleanID($ns);
357        $id = cleanID($id);
358
359        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
360
361        $data = array();
362        if($q !== '' && $ns === '') {
363
364            // use index to lookup matching pages
365            $MetadataSearch = MetadataSearch::getInstance();
366            $pages = $MetadataSearch->pageLookup($id, true);
367
368            // result contains matches in pages and namespaces
369            // we now extract the matching namespaces to show
370            // them seperately
371            $dirs = array();
372
373            foreach ($pages as $pid => $title) {
374                if (strpos(noNS($pid), $id) === false) {
375                    // match was in the namespace
376                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
377                } else {
378                    // it is a matching page, add it to the result
379                    $data[] = array(
380                        'id' => $pid,
381                        'title' => $title,
382                        'type' => 'f',
383                    );
384                }
385                unset($pages[$pid]);
386            }
387            foreach ($dirs as $dir => $junk) {
388                $data[] = array(
389                    'id' => $dir,
390                    'type' => 'd',
391                );
392            }
393
394        } else {
395
396            $opts = array(
397                'depth' => 1,
398                'listfiles' => true,
399                'listdirs' => true,
400                'pagesonly' => true,
401                'firsthead' => true,
402                'sneakyacl' => $conf['sneaky_index'],
403            );
404            if ($id) $opts['filematch'] = '^.*\/' . $id;
405            if ($id) $opts['dirmatch'] = '^.*\/' . $id;
406            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
407
408            // add back to upper
409            if ($ns) {
410                array_unshift(
411                    $data, array(
412                             'id' => getNS($ns),
413                             'type' => 'u',
414                         )
415                );
416            }
417        }
418
419        // fixme sort results in a useful way ?
420
421        if (!count($data)) {
422            echo $lang['nothingfound'];
423            exit;
424        }
425
426        // output the found data
427        $even = 1;
428        foreach ($data as $item) {
429            $even *= -1; //zebra
430
431            if (($item['type'] == 'd' || $item['type'] == 'u') && $item['id'] !== '') $item['id'] .= ':';
432            $link = wl($item['id']);
433
434            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
435
436            if ($item['type'] == 'u') {
437                $name = $lang['upperns'];
438            } else {
439                $name = hsc($item['id']);
440            }
441
442            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
443
444            if (!blank($item['title'])) {
445                echo '<span>' . hsc($item['title']) . '</span>';
446            }
447            echo '</div>';
448        }
449
450    }
451
452}
453