xref: /dokuwiki/inc/Ajax.php (revision c49e647b68fc2302dc54e17b3685823e4512a10f) 
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 $lang;
123        global $ID;
124        global $INFO;
125        global $INPUT;
126
127        $ID = cleanID($INPUT->post->str('id'));
128        if(empty($ID)) return;
129
130        $INFO = pageinfo();
131
132        if(!$INFO['writable']) {
133            echo 'Permission denied';
134            return;
135        }
136
137        if(!checklock($ID)) {
138            lock($ID);
139            echo 1;
140        }
141
142        $draft = new Draft($ID, $INFO['client']);
143        if ($draft->saveDraft()) {
144            echo $draft->getDraftMessage();
145        }
146    }
147
148    /**
149     * Delete a draft
150     *
151     * @author Andreas Gohr <andi@splitbrain.org>
152     */
153    protected function call_draftdel() {
154        global $INPUT;
155        $id = cleanID($INPUT->str('id'));
156        if(empty($id)) return;
157
158        $client = $_SERVER['REMOTE_USER'];
159        if(!$client) $client = clientIP(true);
160
161        $cname = getCacheName($client . $id, '.draft');
162        @unlink($cname);
163    }
164
165    /**
166     * Return subnamespaces for the Mediamanager
167     *
168     * @author Andreas Gohr <andi@splitbrain.org>
169     */
170    protected function call_medians() {
171        global $conf;
172        global $INPUT;
173
174        // wanted namespace
175        $ns = cleanID($INPUT->post->str('ns'));
176        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
177
178        $lvl = count(explode(':', $ns));
179
180        $data = array();
181        search($data, $conf['mediadir'], 'search_index', array('nofiles' => true), $dir);
182        foreach(array_keys($data) as $item) {
183            $data[$item]['level'] = $lvl + 1;
184        }
185        echo html_buildlist($data, 'idx', 'media_nstree_item', 'media_nstree_li');
186    }
187
188    /**
189     * Return list of files for the Mediamanager
190     *
191     * @author Andreas Gohr <andi@splitbrain.org>
192     */
193    protected function call_medialist() {
194        global $NS;
195        global $INPUT;
196
197        $NS = cleanID($INPUT->post->str('ns'));
198        $sort = $INPUT->post->bool('recent') ? 'date' : 'natural';
199        if($INPUT->post->str('do') == 'media') {
200            tpl_mediaFileList();
201        } else {
202            tpl_mediaContent(true, $sort);
203        }
204    }
205
206    /**
207     * Return the content of the right column
208     * (image details) for the Mediamanager
209     *
210     * @author Kate Arzamastseva <pshns@ukr.net>
211     */
212    protected function call_mediadetails() {
213        global $IMG, $JUMPTO, $REV, $fullscreen, $INPUT;
214        $fullscreen = true;
215        require_once(DOKU_INC . 'lib/exe/mediamanager.php');
216
217        $image = '';
218        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
219        if(isset($IMG)) $image = $IMG;
220        if(isset($JUMPTO)) $image = $JUMPTO;
221        $rev = false;
222        if(isset($REV) && !$JUMPTO) $rev = $REV;
223
224        html_msgarea();
225        tpl_mediaFileDetails($image, $rev);
226    }
227
228    /**
229     * Returns image diff representation for mediamanager
230     *
231     * @author Kate Arzamastseva <pshns@ukr.net>
232     */
233    protected function call_mediadiff() {
234        global $NS;
235        global $INPUT;
236
237        $image = '';
238        if($INPUT->has('image')) $image = cleanID($INPUT->str('image'));
239        $NS = getNS($image);
240        $auth = auth_quickaclcheck("$NS:*");
241        media_diff($image, $NS, $auth, true);
242    }
243
244    /**
245     * Manages file uploads
246     *
247     * @author Kate Arzamastseva <pshns@ukr.net>
248     */
249    protected function call_mediaupload() {
250        global $NS, $MSG, $INPUT;
251
252        $id = '';
253        if($_FILES['qqfile']['tmp_name']) {
254            $id = $INPUT->post->str('mediaid', $_FILES['qqfile']['name']);
255        } elseif($INPUT->get->has('qqfile')) {
256            $id = $INPUT->get->str('qqfile');
257        }
258
259        $id = cleanID($id);
260
261        $NS = $INPUT->str('ns');
262        $ns = $NS . ':' . getNS($id);
263
264        $AUTH = auth_quickaclcheck("$ns:*");
265        if($AUTH >= AUTH_UPLOAD) {
266            io_createNamespace("$ns:xxx", 'media');
267        }
268
269        if($_FILES['qqfile']['error']) unset($_FILES['qqfile']);
270
271        $res = false;
272        if($_FILES['qqfile']['tmp_name']) $res = media_upload($NS, $AUTH, $_FILES['qqfile']);
273        if($INPUT->get->has('qqfile')) $res = media_upload_xhr($NS, $AUTH);
274
275        if($res) {
276            $result = array(
277                'success' => true,
278                'link' => media_managerURL(array('ns' => $ns, 'image' => $NS . ':' . $id), '&'),
279                'id' => $NS . ':' . $id,
280                'ns' => $NS
281            );
282        } else {
283            $error = '';
284            if(isset($MSG)) {
285                foreach($MSG as $msg) {
286                    $error .= $msg['msg'];
287                }
288            }
289            $result = array(
290                'error' => $error,
291                'ns' => $NS
292            );
293        }
294        $json = new \JSON;
295        header('Content-Type: application/json');
296        echo $json->encode($result);
297    }
298
299    /**
300     * Return sub index for index view
301     *
302     * @author Andreas Gohr <andi@splitbrain.org>
303     */
304    protected function call_index() {
305        global $conf;
306        global $INPUT;
307
308        // wanted namespace
309        $ns = cleanID($INPUT->post->str('idx'));
310        $dir = utf8_encodeFN(str_replace(':', '/', $ns));
311
312        $lvl = count(explode(':', $ns));
313
314        $data = array();
315        search($data, $conf['datadir'], 'search_index', array('ns' => $ns), $dir);
316        foreach(array_keys($data) as $item) {
317            $data[$item]['level'] = $lvl + 1;
318        }
319        echo html_buildlist($data, 'idx', 'html_list_index', 'html_li_index');
320    }
321
322    /**
323     * List matching namespaces and pages for the link wizard
324     *
325     * @author Andreas Gohr <gohr@cosmocode.de>
326     */
327    protected function call_linkwiz() {
328        global $conf;
329        global $lang;
330        global $INPUT;
331
332        $q = ltrim(trim($INPUT->post->str('q')), ':');
333        $id = noNS($q);
334        $ns = getNS($q);
335
336        $ns = cleanID($ns);
337        $id = cleanID($id);
338
339        $nsd = utf8_encodeFN(str_replace(':', '/', $ns));
340
341        $data = array();
342        if($q && !$ns) {
343
344            // use index to lookup matching pages
345            $pages = ft_pageLookup($id, true);
346
347            // result contains matches in pages and namespaces
348            // we now extract the matching namespaces to show
349            // them seperately
350            $dirs = array();
351
352            foreach($pages as $pid => $title) {
353                if(strpos(noNS($pid), $id) === false) {
354                    // match was in the namespace
355                    $dirs[getNS($pid)] = 1; // assoc array avoids dupes
356                } else {
357                    // it is a matching page, add it to the result
358                    $data[] = array(
359                        'id' => $pid,
360                        'title' => $title,
361                        'type' => 'f',
362                    );
363                }
364                unset($pages[$pid]);
365            }
366            foreach($dirs as $dir => $junk) {
367                $data[] = array(
368                    'id' => $dir,
369                    'type' => 'd',
370                );
371            }
372
373        } else {
374
375            $opts = array(
376                'depth' => 1,
377                'listfiles' => true,
378                'listdirs' => true,
379                'pagesonly' => true,
380                'firsthead' => true,
381                'sneakyacl' => $conf['sneaky_index'],
382            );
383            if($id) $opts['filematch'] = '^.*\/' . $id;
384            if($id) $opts['dirmatch'] = '^.*\/' . $id;
385            search($data, $conf['datadir'], 'search_universal', $opts, $nsd);
386
387            // add back to upper
388            if($ns) {
389                array_unshift(
390                    $data, array(
391                             'id' => getNS($ns),
392                             'type' => 'u',
393                         )
394                );
395            }
396        }
397
398        // fixme sort results in a useful way ?
399
400        if(!count($data)) {
401            echo $lang['nothingfound'];
402            exit;
403        }
404
405        // output the found data
406        $even = 1;
407        foreach($data as $item) {
408            $even *= -1; //zebra
409
410            if(($item['type'] == 'd' || $item['type'] == 'u') && $item['id']) $item['id'] .= ':';
411            $link = wl($item['id']);
412
413            echo '<div class="' . (($even > 0) ? 'even' : 'odd') . ' type_' . $item['type'] . '">';
414
415            if($item['type'] == 'u') {
416                $name = $lang['upperns'];
417            } else {
418                $name = hsc($item['id']);
419            }
420
421            echo '<a href="' . $link . '" title="' . hsc($item['id']) . '" class="wikilink1">' . $name . '</a>';
422
423            if(!blank($item['title'])) {
424                echo '<span>' . hsc($item['title']) . '</span>';
425            }
426            echo '</div>';
427        }
428
429    }
430
431}
432