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 $INPUT;
247
248        $image = '';
249        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
250        (new Ui\MediaDiff($image))->preference('fromAjax', true)->show();
251    }
252
253    /**
254     * Manages file uploads
255     *
256     * @author Kate Arzamastseva <pshns@ukr.net>
257     */
258    protected function callMediaupload() {
259        global $NS, $MSG, $INPUT;
260
261        $id = '';
262        if(isset($_FILES['qqfile']['tmp_name'])) {
263            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
264        } elseif($INPUT->get->has('qqfile')) {
265            $id = $INPUT->get->str('qqfile');
266        }
267
268        $id = cleanID($id);
269
270        $NS = $INPUT->str('ns');
271        $ns = $NS . ':' . getNS($id);
272
273        $AUTH = auth_quickaclcheck("$ns:*");
274        if($AUTH >= AUTH_UPLOAD) {
275            io_createNamespace("$ns:xxx", 'media');
276        }
277
278        if(isset($_FILES['qqfile']['error']) && $_FILES['qqfile']['error']) unset($_FILES['qqfile']);
279
280        $res = false;
281        if(isset($_FILES['qqfile']['tmp_name'])) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
282        if($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
283
284        if($res) {
285            $result = array(
286                'success' => true,
287                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
288                'id' => $NS . ':' . $id,
289                'ns' => $NS
290            );
291        } else {
292            $error = '';
293            if(isset($MSG)) {
294                foreach($MSG as $msg) {
295                    $error .= $msg['msg'];
296                }
297            }
298            $result = array(
299                'error' => $error,
300                'ns' => $NS
301            );
302        }
303
304        header('Content-Type: application/json');
305        echo json_encode($result);
306    }
307
308    /**
309     * Return sub index for index view
310     *
311     * @author Andreas Gohr <andi@splitbrain.org>
312     */
313    protected function callIndex() {
314        global $conf;
315        global $INPUT;
316
317        // wanted namespace
318        $ns = cleanID($INPUT->post->str('idx'));
319        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
320
321        $lvl = count(explode(':', $ns));
322
323        $data = array();
324        search($data, $conf['datadir'], 'search_index', array('ns' => $ns), $dir);
325        foreach (array_keys($data) as $item) {
326            $data[$item]['level'] = $lvl + 1;
327        }
328        $idx = new Ui\Index;
329        echo html_buildlist($data, 'idx', [$idx,'formatListItem'], [$idx,'tagListItem']);
330    }
331
332    /**
333     * List matching namespaces and pages for the link wizard
334     *
335     * @author Andreas Gohr <gohr@cosmocode.de>
336     */
337    protected function callLinkwiz() {
338        global $conf;
339        global $lang;
340        global $INPUT;
341
342        $q = ltrim(trim($INPUT->post->str('q')), ':');
343        $id = noNS($q);
344        $ns = getNS($q);
345
346        $ns = cleanID($ns);
347        $id = cleanID($id);
348
349        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
350
351        $data = array();
352        if($q !== '' && $ns === '') {
353
354            // use index to lookup matching pages
355            $pages = ft_pageLookup($id, true);
356
357            // If 'useheading' option is 'always' or 'content',
358            // search page titles with original query as well.
359            if ($conf['useheading'] == '1' || $conf['useheading'] == 'content') {
360                $pages = array_merge($pages, ft_pageLookup($q, true, true));
361                asort($pages, SORT_STRING);
362            }
363
364            // result contains matches in pages and namespaces
365            // we now extract the matching namespaces to show
366            // them seperately
367            $dirs = array();
368
369            foreach($pages as $pid => $title) {
370                if(strpos(getNS($pid), $id) !== false) {
371                    // match was in the namespace
372                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
373                } else {
374                    // it is a matching page, add it to the result
375                    $data[] = array(
376                        'id' => $pid,
377                        'title' => $title,
378                        'type' => 'f',
379                    );
380                }
381                unset($pages[$pid]);
382            }
383            foreach($dirs as $dir => $junk) {
384                $data[] = array(
385                    'id' => $dir,
386                    'type' => 'd',
387                );
388            }
389
390        } else {
391
392            $opts = array(
393                'depth' => 1,
394                'listfiles' => true,
395                'listdirs' => true,
396                'pagesonly' => true,
397                'firsthead' => true,
398                'sneakyacl' => $conf['sneaky_index'],
399            );
400            if($id) $opts['filematch'] = '^.*\/' . $id;
401            if($id) $opts['dirmatch'] = '^.*\/' . $id;
402            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
403
404            // add back to upper
405            if($ns) {
406                array_unshift(
407                    $data, array(
408                             'id' => getNS($ns),
409                             'type' => 'u',
410                         )
411                );
412            }
413        }
414
415        // fixme sort results in a useful way ?
416
417        if(!count($data)) {
418            echo $lang['nothingfound'];
419            exit;
420        }
421
422        // output the found data
423        $even = 1;
424        foreach($data as $item) {
425            $even *= -1; //zebra
426
427            if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id'] !== '') $item['id'] .= ':';
428            $link = wl($item['id']);
429
430            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
431
432            if($item['type'] == 'u') {
433                $name = $lang['upperns'];
434            } else {
435                $name = hsc($item['id']);
436            }
437
438            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
439
440            if(!blank($item['title'])) {
441                echo '<span>' . hsc($item['title']) . '</span>';
442            }
443            echo '</div>';
444        }
445
446    }
447
448}
449