xref: /dokuwiki/inc/media.php (revision d91a4ef556635b5298c47df2856851f0694b2885) 
1<?php
2/**
3 * All output and handler function needed for the media management popup
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 */
8
9if(!defined('DOKU_INC')) die('meh.');
10if(!defined('NL')) define('NL',"\n");
11
12/**
13 * Lists pages which currently use a media file selected for deletion
14 *
15 * References uses the same visual as search results and share
16 * their CSS tags except pagenames won't be links.
17 *
18 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
19 */
20function media_filesinuse($data,$id){
21    global $lang;
22    echo '<h1>'.$lang['reference'].' <code>'.hsc(noNS($id)).'</code></h1>';
23    echo '<p>'.hsc($lang['ref_inuse']).'</p>';
24
25    $hidden=0; //count of hits without read permission
26    foreach($data as $row){
27        if(auth_quickaclcheck($row) >= AUTH_READ && isVisiblePage($row)){
28            echo '<div class="search_result">';
29            echo '<span class="mediaref_ref">'.hsc($row).'</span>';
30            echo '</div>';
31        }else
32            $hidden++;
33    }
34    if ($hidden){
35        print '<div class="mediaref_hidden">'.$lang['ref_hidden'].'</div>';
36    }
37}
38
39/**
40 * Handles the saving of image meta data
41 *
42 * @author Andreas Gohr <andi@splitbrain.org>
43 * @author Kate Arzamastseva <pshns@ukr.net>
44 */
45function media_metasave($id,$auth,$data){
46    if($auth < AUTH_UPLOAD) return false;
47    if(!checkSecurityToken()) return false;
48    global $lang;
49    global $conf;
50    $src = mediaFN($id);
51
52    $meta = new JpegMeta($src);
53    $meta->_parseAll();
54
55    foreach($data as $key => $val){
56        $val=trim($val);
57        if(empty($val)){
58            $meta->deleteField($key);
59        }else{
60            $meta->setField($key,$val);
61        }
62    }
63
64    $old = @filemtime($src);
65    if(!@file_exists(mediaFN($id, $old)) && @file_exists($src)) {
66        // add old revision to the attic
67        media_saveOldRevision($id);
68    }
69
70    if($meta->save()){
71        if($conf['fperm']) chmod($src, $conf['fperm']);
72
73        $new = @filemtime($src);
74        // add a log entry to the media changelog
75        addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT, $lang['media_meta_edited']);
76
77        msg($lang['metasaveok'],1);
78        return $id;
79    }else{
80        msg($lang['metasaveerr'],-1);
81        return false;
82    }
83}
84
85/**
86 * Display the form to edit image meta data
87 *
88 * @author Andreas Gohr <andi@splitbrain.org>
89 * @author Kate Arzamastseva <pshns@ukr.net>
90 */
91function media_metaform($id,$auth){
92    global $lang, $config_cascade;
93
94    if($auth < AUTH_UPLOAD) {
95        echo '<div class="nothing">'.$lang['media_perm_upload'].'</div>'.NL;
96        return false;
97    }
98
99    // load the field descriptions
100    static $fields = null;
101    if(is_null($fields)){
102        $config_files = getConfigFiles('mediameta');
103        foreach ($config_files as $config_file) {
104            if(@file_exists($config_file)) include($config_file);
105        }
106    }
107
108    $src = mediaFN($id);
109
110    // output
111    $form = new Doku_Form(array('action' => media_managerURL(array('tab_details' => 'view'), '&'),
112                                'class' => 'meta'));
113    $form->addHidden('img', $id);
114    $form->addHidden('mediado', 'save');
115    foreach($fields as $key => $field){
116        // get current value
117        if (empty($field[0])) continue;
118        $tags = array($field[0]);
119        if(is_array($field[3])) $tags = array_merge($tags,$field[3]);
120        $value = tpl_img_getTag($tags,'',$src);
121        $value = cleanText($value);
122
123        // prepare attributes
124        $p = array();
125        $p['class'] = 'edit';
126        $p['id']    = 'meta__'.$key;
127        $p['name']  = 'meta['.$field[0].']';
128        $p_attrs    = array('class' => 'edit');
129
130        $form->addElement('<div class="row">');
131        if($field[2] == 'text'){
132            $form->addElement(form_makeField('text', $p['name'], $value, ($lang[$field[1]]) ? $lang[$field[1]] : $field[1] . ':', $p['id'], $p['class'], $p_attrs));
133        }else{
134            $att = buildAttributes($p);
135            $form->addElement('<label for="meta__'.$key.'">'.$lang[$field[1]].'</label>');
136            $form->addElement("<textarea $att rows=\"6\" cols=\"50\">".formText($value).'</textarea>');
137        }
138        $form->addElement('</div>'.NL);
139    }
140    $form->addElement('<div class="buttons">');
141    $form->addElement(form_makeButton('submit', '', $lang['btn_save'], array('accesskey' => 's', 'name' => 'mediado[save]')));
142    $form->addElement('</div>'.NL);
143    $form->printForm();
144}
145
146/**
147 * Convenience function to check if a media file is still in use
148 *
149 * @author Michael Klier <chi@chimeric.de>
150 */
151function media_inuse($id) {
152    global $conf;
153    $mediareferences = array();
154    if($conf['refcheck']){
155        $mediareferences = ft_mediause($id,$conf['refshow']);
156        if(!count($mediareferences)) {
157            return false;
158        } else {
159            return $mediareferences;
160        }
161    } else {
162        return false;
163    }
164}
165
166define('DOKU_MEDIA_DELETED', 1);
167define('DOKU_MEDIA_NOT_AUTH', 2);
168define('DOKU_MEDIA_INUSE', 4);
169define('DOKU_MEDIA_EMPTY_NS', 8);
170
171/**
172 * Handles media file deletions
173 *
174 * If configured, checks for media references before deletion
175 *
176 * @author Andreas Gohr <andi@splitbrain.org>
177 * @return int One of: 0,
178 *                     DOKU_MEDIA_DELETED,
179 *                     DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS,
180 *                     DOKU_MEDIA_NOT_AUTH,
181 *                     DOKU_MEDIA_INUSE
182 */
183function media_delete($id,$auth){
184    global $lang;
185    if($auth < AUTH_DELETE) return DOKU_MEDIA_NOT_AUTH;
186    if(media_inuse($id)) return DOKU_MEDIA_INUSE;
187
188    $file = mediaFN($id);
189
190    // trigger an event - MEDIA_DELETE_FILE
191    $data['id']   = $id;
192    $data['name'] = utf8_basename($file);
193    $data['path'] = $file;
194    $data['size'] = (@file_exists($file)) ? filesize($file) : 0;
195
196    $data['unl'] = false;
197    $data['del'] = false;
198    $evt = new Doku_Event('MEDIA_DELETE_FILE',$data);
199    if ($evt->advise_before()) {
200        $old = @filemtime($file);
201        if(!@file_exists(mediaFN($id, $old)) && @file_exists($file)) {
202            // add old revision to the attic
203            media_saveOldRevision($id);
204        }
205
206        $data['unl'] = @unlink($file);
207        if($data['unl']){
208            addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_DELETE, $lang['deleted']);
209            $data['del'] = io_sweepNS($id,'mediadir');
210        }
211    }
212    $evt->advise_after();
213    unset($evt);
214
215    if($data['unl'] && $data['del']){
216        return DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS;
217    }
218
219    return $data['unl'] ? DOKU_MEDIA_DELETED : 0;
220}
221
222/**
223 * Handle file uploads via XMLHttpRequest
224 *
225 * @return mixed false on error, id of the new file on success
226 */
227function media_upload_xhr($ns,$auth){
228    if(!checkSecurityToken()) return false;
229    global $INPUT;
230
231    $id = $INPUT->get->str('qqfile');
232    list($ext,$mime,$dl) = mimetype($id);
233    $input = fopen("php://input", "r");
234    if (!($tmp = io_mktmpdir())) return false;
235    $path = $tmp.'/'.md5($id);
236    $target = fopen($path, "w");
237    $realSize = stream_copy_to_stream($input, $target);
238    fclose($target);
239    fclose($input);
240    if ($realSize != (int)$_SERVER["CONTENT_LENGTH"]){
241        unlink($target);
242        unlink($path);
243        return false;
244    }
245
246    $res = media_save(
247        array('name' => $path,
248            'mime' => $mime,
249            'ext'  => $ext),
250        $ns.':'.$id,
251        (($INPUT->get->str('ow') == 'checked') ? true : false),
252        $auth,
253        'copy'
254    );
255    unlink($path);
256    if ($tmp) dir_delete($tmp);
257    if (is_array($res)) {
258        msg($res[0], $res[1]);
259        return false;
260    }
261    return $res;
262}
263
264/**
265 * Handles media file uploads
266 *
267 * @author Andreas Gohr <andi@splitbrain.org>
268 * @author Michael Klier <chi@chimeric.de>
269 * @return mixed false on error, id of the new file on success
270 */
271function media_upload($ns,$auth,$file=false){
272    if(!checkSecurityToken()) return false;
273    global $lang;
274    global $INPUT;
275
276    // get file and id
277    $id   = $INPUT->post->str('mediaid');
278    if (!$file) $file = $_FILES['upload'];
279    if(empty($id)) $id = $file['name'];
280
281    // check for errors (messages are done in lib/exe/mediamanager.php)
282    if($file['error']) return false;
283
284    // check extensions
285    list($fext,$fmime,$dl) = mimetype($file['name']);
286    list($iext,$imime,$dl) = mimetype($id);
287    if($fext && !$iext){
288        // no extension specified in id - read original one
289        $id   .= '.'.$fext;
290        $imime = $fmime;
291    }elseif($fext && $fext != $iext){
292        // extension was changed, print warning
293        msg(sprintf($lang['mediaextchange'],$fext,$iext));
294    }
295
296    $res = media_save(array('name' => $file['tmp_name'],
297                            'mime' => $imime,
298                            'ext'  => $iext), $ns.':'.$id,
299                      $INPUT->post->bool('ow'), $auth, 'copy_uploaded_file');
300    if (is_array($res)) {
301        msg($res[0], $res[1]);
302        return false;
303    }
304    return $res;
305}
306
307/**
308 * An alternative to move_uploaded_file that copies
309 *
310 * Using copy, makes sure any setgid bits on the media directory are honored
311 *
312 * @see   move_uploaded_file()
313 * @param string $from
314 * @param string $to
315 * @return bool
316 */
317function copy_uploaded_file($from, $to){
318    if(!is_uploaded_file($from)) return false;
319    $ok = copy($from, $to);
320    @unlink($from);
321    return $ok;
322}
323
324/**
325 * This generates an action event and delegates to _media_upload_action().
326 * Action plugins are allowed to pre/postprocess the uploaded file.
327 * (The triggered event is preventable.)
328 *
329 * Event data:
330 * $data[0]     fn_tmp: the temporary file name (read from $_FILES)
331 * $data[1]     fn: the file name of the uploaded file
332 * $data[2]     id: the future directory id of the uploaded file
333 * $data[3]     imime: the mimetype of the uploaded file
334 * $data[4]     overwrite: if an existing file is going to be overwritten
335 *
336 * @triggers MEDIA_UPLOAD_FINISH
337 */
338function media_save($file, $id, $ow, $auth, $move) {
339    if($auth < AUTH_UPLOAD) {
340        return array("You don't have permissions to upload files.", -1);
341    }
342
343    if (!isset($file['mime']) || !isset($file['ext'])) {
344        list($ext, $mime) = mimetype($id);
345        if (!isset($file['mime'])) {
346            $file['mime'] = $mime;
347        }
348        if (!isset($file['ext'])) {
349            $file['ext'] = $ext;
350        }
351    }
352
353    global $lang, $conf;
354
355    // get filename
356    $id   = cleanID($id);
357    $fn   = mediaFN($id);
358
359    // get filetype regexp
360    $types = array_keys(getMimeTypes());
361    $types = array_map(create_function('$q','return preg_quote($q,"/");'),$types);
362    $regex = join('|',$types);
363
364    // because a temp file was created already
365    if(!preg_match('/\.('.$regex.')$/i',$fn)) {
366        return array($lang['uploadwrong'],-1);
367    }
368
369    //check for overwrite
370    $overwrite = @file_exists($fn);
371    $auth_ow = (($conf['mediarevisions']) ? AUTH_UPLOAD : AUTH_DELETE);
372    if($overwrite && (!$ow || $auth < $auth_ow)) {
373        return array($lang['uploadexist'], 0);
374    }
375    // check for valid content
376    $ok = media_contentcheck($file['name'], $file['mime']);
377    if($ok == -1){
378        return array(sprintf($lang['uploadbadcontent'],'.' . $file['ext']),-1);
379    }elseif($ok == -2){
380        return array($lang['uploadspam'],-1);
381    }elseif($ok == -3){
382        return array($lang['uploadxss'],-1);
383    }
384
385    // prepare event data
386    $data[0] = $file['name'];
387    $data[1] = $fn;
388    $data[2] = $id;
389    $data[3] = $file['mime'];
390    $data[4] = $overwrite;
391    $data[5] = $move;
392
393    // trigger event
394    return trigger_event('MEDIA_UPLOAD_FINISH', $data, '_media_upload_action', true);
395}
396
397/**
398 * Callback adapter for media_upload_finish()
399 * @author Michael Klier <chi@chimeric.de>
400 */
401function _media_upload_action($data) {
402    // fixme do further sanity tests of given data?
403    if(is_array($data) && count($data)===6) {
404        return media_upload_finish($data[0], $data[1], $data[2], $data[3], $data[4], $data[5]);
405    } else {
406        return false; //callback error
407    }
408}
409
410/**
411 * Saves an uploaded media file
412 *
413 * @author Andreas Gohr <andi@splitbrain.org>
414 * @author Michael Klier <chi@chimeric.de>
415 * @author Kate Arzamastseva <pshns@ukr.net>
416 */
417function media_upload_finish($fn_tmp, $fn, $id, $imime, $overwrite, $move = 'move_uploaded_file') {
418    global $conf;
419    global $lang;
420    global $REV;
421
422    $old = @filemtime($fn);
423    if(!@file_exists(mediaFN($id, $old)) && @file_exists($fn)) {
424        // add old revision to the attic if missing
425        media_saveOldRevision($id);
426    }
427
428    // prepare directory
429    io_createNamespace($id, 'media');
430
431    if($move($fn_tmp, $fn)) {
432        @clearstatcache(true,$fn);
433        $new = @filemtime($fn);
434        // Set the correct permission here.
435        // Always chmod media because they may be saved with different permissions than expected from the php umask.
436        // (Should normally chmod to $conf['fperm'] only if $conf['fperm'] is set.)
437        chmod($fn, $conf['fmode']);
438        msg($lang['uploadsucc'],1);
439        media_notify($id,$fn,$imime,$old);
440        // add a log entry to the media changelog
441        if ($REV){
442            addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_REVERT, sprintf($lang['restored'], dformat($REV)), $REV);
443        } elseif ($overwrite) {
444            addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT);
445        } else {
446            addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created']);
447        }
448        return $id;
449    }else{
450        return array($lang['uploadfail'],-1);
451    }
452}
453
454/**
455 * Moves the current version of media file to the media_attic
456 * directory
457 *
458 * @author Kate Arzamastseva <pshns@ukr.net>
459 * @param string $id
460 * @return int - revision date
461 */
462function media_saveOldRevision($id){
463    global $conf, $lang;
464
465    $oldf = mediaFN($id);
466    if(!@file_exists($oldf)) return '';
467    $date = filemtime($oldf);
468    if (!$conf['mediarevisions']) return $date;
469
470    if (!getRevisionInfo($id, $date, 8192, true)) {
471        // there was an external edit,
472        // there is no log entry for current version of file
473        if (!@file_exists(mediaMetaFN($id,'.changes'))) {
474            addMediaLogEntry($date, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created']);
475        } else {
476            addMediaLogEntry($date, $id, DOKU_CHANGE_TYPE_EDIT);
477        }
478    }
479
480    $newf = mediaFN($id,$date);
481    io_makeFileDir($newf);
482    if(copy($oldf, $newf)) {
483        // Set the correct permission here.
484        // Always chmod media because they may be saved with different permissions than expected from the php umask.
485        // (Should normally chmod to $conf['fperm'] only if $conf['fperm'] is set.)
486        chmod($newf, $conf['fmode']);
487    }
488    return $date;
489}
490
491/**
492 * This function checks if the uploaded content is really what the
493 * mimetype says it is. We also do spam checking for text types here.
494 *
495 * We need to do this stuff because we can not rely on the browser
496 * to do this check correctly. Yes, IE is broken as usual.
497 *
498 * @author Andreas Gohr <andi@splitbrain.org>
499 * @link   http://www.splitbrain.org/blog/2007-02/12-internet_explorer_facilitates_cross_site_scripting
500 * @fixme  check all 26 magic IE filetypes here?
501 */
502function media_contentcheck($file,$mime){
503    global $conf;
504    if($conf['iexssprotect']){
505        $fh = @fopen($file, 'rb');
506        if($fh){
507            $bytes = fread($fh, 256);
508            fclose($fh);
509            if(preg_match('/<(script|a|img|html|body|iframe)[\s>]/i',$bytes)){
510                return -3;
511            }
512        }
513    }
514    if(substr($mime,0,6) == 'image/'){
515        $info = @getimagesize($file);
516        if($mime == 'image/gif' && $info[2] != 1){
517            return -1;
518        }elseif($mime == 'image/jpeg' && $info[2] != 2){
519            return -1;
520        }elseif($mime == 'image/png' && $info[2] != 3){
521            return -1;
522        }
523        # fixme maybe check other images types as well
524    }elseif(substr($mime,0,5) == 'text/'){
525        global $TEXT;
526        $TEXT = io_readFile($file);
527        if(checkwordblock()){
528            return -2;
529        }
530    }
531    return 0;
532}
533
534/**
535 * Send a notify mail on uploads
536 *
537 * @author Andreas Gohr <andi@splitbrain.org>
538 */
539function media_notify($id,$file,$mime,$old_rev=false){
540    global $conf;
541    if(empty($conf['notify'])) return; //notify enabled?
542
543    $subscription = new Subscription();
544    return $subscription->send_media_diff($conf['notify'], 'uploadmail', $id, $old_rev, '');
545}
546
547/**
548 * List all files in a given Media namespace
549 */
550function media_filelist($ns,$auth=null,$jump='',$fullscreenview=false,$sort=false){
551    global $conf;
552    global $lang;
553    $ns = cleanID($ns);
554
555    // check auth our self if not given (needed for ajax calls)
556    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
557
558    if (!$fullscreenview) echo '<h1 id="media__ns">:'.hsc($ns).'</h1>'.NL;
559
560    if($auth < AUTH_READ){
561        // FIXME: print permission warning here instead?
562        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
563    }else{
564        if (!$fullscreenview) media_uploadform($ns, $auth);
565
566        $dir = utf8_encodeFN(str_replace(':','/',$ns));
567        $data = array();
568        search($data,$conf['mediadir'],'search_media',
569                array('showmsg'=>true,'depth'=>1),$dir,1,$sort);
570
571        if(!count($data)){
572            echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
573        }else {
574            if ($fullscreenview) {
575                echo '<ul class="' . _media_get_list_type() . '">';
576            }
577            foreach($data as $item){
578                if (!$fullscreenview) {
579                    media_printfile($item,$auth,$jump);
580                } else {
581                    media_printfile_thumbs($item,$auth,$jump);
582                }
583            }
584            if ($fullscreenview) echo '</ul>'.NL;
585        }
586    }
587    if (!$fullscreenview) media_searchform($ns);
588}
589
590/**
591 * Prints tabs for files list actions
592 *
593 * @author Kate Arzamastseva <pshns@ukr.net>
594 * @author Adrian Lang <mail@adrianlang.de>
595 *
596 * @param string $selected_tab - opened tab
597 */
598
599function media_tabs_files($selected_tab = ''){
600    global $lang;
601    $tabs = array();
602    foreach(array('files'  => 'mediaselect',
603                  'upload' => 'media_uploadtab',
604                  'search' => 'media_searchtab') as $tab => $caption) {
605        $tabs[$tab] = array('href'    => media_managerURL(array('tab_files' => $tab), '&'),
606                            'caption' => $lang[$caption]);
607    }
608
609    html_tabs($tabs, $selected_tab);
610}
611
612/**
613 * Prints tabs for files details actions
614 *
615 * @author Kate Arzamastseva <pshns@ukr.net>
616 * @param string $selected_tab - opened tab
617 */
618function media_tabs_details($image, $selected_tab = ''){
619    global $lang, $conf;
620
621    $tabs = array();
622    $tabs['view'] = array('href'    => media_managerURL(array('tab_details' => 'view'), '&'),
623                          'caption' => $lang['media_viewtab']);
624
625    list($ext, $mime) = mimetype($image);
626    if ($mime == 'image/jpeg' && @file_exists(mediaFN($image))) {
627        $tabs['edit'] = array('href'    => media_managerURL(array('tab_details' => 'edit'), '&'),
628                              'caption' => $lang['media_edittab']);
629    }
630    if ($conf['mediarevisions']) {
631        $tabs['history'] = array('href'    => media_managerURL(array('tab_details' => 'history'), '&'),
632                                 'caption' => $lang['media_historytab']);
633    }
634
635    html_tabs($tabs, $selected_tab);
636}
637
638/**
639 * Prints options for the tab that displays a list of all files
640 *
641 * @author Kate Arzamastseva <pshns@ukr.net>
642 */
643function media_tab_files_options(){
644    global $lang;
645    global $NS;
646    global $INPUT;
647    global $ID;
648    $form = new Doku_Form(array('class' => 'options', 'method' => 'get',
649                                'action' => wl($ID)));
650    $media_manager_params = media_managerURL(array(), '', false, true);
651    foreach($media_manager_params as $pKey => $pVal){
652        $form->addHidden($pKey, $pVal);
653    }
654    $form->addHidden('sectok', null);
655    if ($INPUT->has('q')) {
656        $form->addHidden('q', $INPUT->str('q'));
657    }
658    $form->addElement('<ul>'.NL);
659    foreach(array('list' => array('listType', array('thumbs', 'rows')),
660                  'sort' => array('sortBy', array('name', 'date')))
661            as $group => $content) {
662        $checked = "_media_get_${group}_type";
663        $checked = $checked();
664
665        $form->addElement('<li class="' . $content[0] . '">');
666        foreach($content[1] as $option) {
667            $attrs = array();
668            if ($checked == $option) {
669                $attrs['checked'] = 'checked';
670            }
671            $form->addElement(form_makeRadioField($group, $option,
672                                       $lang['media_' . $group . '_' . $option],
673                                                  $content[0] . '__' . $option,
674                                                  $option, $attrs));
675        }
676        $form->addElement('</li>'.NL);
677    }
678    $form->addElement('<li>');
679    $form->addElement(form_makeButton('submit', '', $lang['btn_apply']));
680    $form->addElement('</li>'.NL);
681    $form->addElement('</ul>'.NL);
682    $form->printForm();
683}
684
685/**
686 * Returns type of sorting for the list of files in media manager
687 *
688 * @author Kate Arzamastseva <pshns@ukr.net>
689 * @return string - sort type
690 */
691function _media_get_sort_type() {
692    return _media_get_display_param('sort', array('default' => 'name', 'date'));
693}
694
695function _media_get_list_type() {
696    return _media_get_display_param('list', array('default' => 'thumbs', 'rows'));
697}
698
699function _media_get_display_param($param, $values) {
700    global $INPUT;
701    if (in_array($INPUT->str($param), $values)) {
702        // FIXME: Set cookie
703        return $INPUT->str($param);
704    } else {
705        $val = get_doku_pref($param, $values['default']);
706        if (!in_array($val, $values)) {
707            $val = $values['default'];
708        }
709        return $val;
710    }
711}
712
713/**
714 * Prints tab that displays a list of all files
715 *
716 * @author Kate Arzamastseva <pshns@ukr.net>
717 */
718function media_tab_files($ns,$auth=null,$jump='') {
719    global $lang;
720    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
721
722    if($auth < AUTH_READ){
723        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
724    }else{
725        media_filelist($ns,$auth,$jump,true,_media_get_sort_type());
726    }
727}
728
729/**
730 * Prints tab that displays uploading form
731 *
732 * @author Kate Arzamastseva <pshns@ukr.net>
733 */
734function media_tab_upload($ns,$auth=null,$jump='') {
735    global $lang;
736    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
737
738    echo '<div class="upload">'.NL;
739    if ($auth >= AUTH_UPLOAD) {
740        echo '<p>' . $lang['mediaupload'] . '</p>';
741    }
742    media_uploadform($ns, $auth, true);
743    echo '</div>'.NL;
744}
745
746/**
747 * Prints tab that displays search form
748 *
749 * @author Kate Arzamastseva <pshns@ukr.net>
750 */
751function media_tab_search($ns,$auth=null) {
752    global $lang;
753    global $INPUT;
754
755    $do = $INPUT->str('mediado');
756    $query = $INPUT->str('q');
757    echo '<div class="search">'.NL;
758
759    media_searchform($ns, $query, true);
760    if ($do == 'searchlist' || $query) {
761        media_searchlist($query,$ns,$auth,true,_media_get_sort_type());
762    }
763    echo '</div>'.NL;
764}
765
766/**
767 * Prints tab that displays mediafile details
768 *
769 * @author Kate Arzamastseva <pshns@ukr.net>
770 */
771function media_tab_view($image, $ns, $auth=null, $rev=false) {
772    global $lang, $conf;
773    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
774
775    if ($image && $auth >= AUTH_READ) {
776        $meta = new JpegMeta(mediaFN($image, $rev));
777        media_preview($image, $auth, $rev, $meta);
778        media_preview_buttons($image, $auth, $rev);
779        media_details($image, $auth, $rev, $meta);
780
781    } else {
782        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
783    }
784}
785
786/**
787 * Prints tab that displays form for editing mediafile metadata
788 *
789 * @author Kate Arzamastseva <pshns@ukr.net>
790 */
791function media_tab_edit($image, $ns, $auth=null) {
792    global $lang;
793    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
794
795    if ($image) {
796        list($ext, $mime) = mimetype($image);
797        if ($mime == 'image/jpeg') media_metaform($image,$auth);
798    }
799}
800
801/**
802 * Prints tab that displays mediafile revisions
803 *
804 * @author Kate Arzamastseva <pshns@ukr.net>
805 */
806function media_tab_history($image, $ns, $auth=null) {
807    global $lang;
808    global $INPUT;
809
810    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
811    $do = $INPUT->str('mediado');
812
813    if ($auth >= AUTH_READ && $image) {
814        if ($do == 'diff'){
815            media_diff($image, $ns, $auth);
816        } else {
817            $first = $INPUT->int('first');
818            html_revisions($first, $image);
819        }
820    } else {
821        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
822    }
823}
824
825/**
826 * Prints mediafile details
827 *
828 * @author Kate Arzamastseva <pshns@ukr.net>
829 */
830function media_preview($image, $auth, $rev=false, $meta=false) {
831
832    $size = media_image_preview_size($image, $rev, $meta);
833
834    if ($size) {
835        global $lang;
836        echo '<div class="image">';
837
838        $more = array();
839        if ($rev) {
840            $more['rev'] = $rev;
841        } else {
842            $t = @filemtime(mediaFN($image));
843            $more['t'] = $t;
844        }
845
846        $more['w'] = $size[0];
847        $more['h'] = $size[1];
848        $src = ml($image, $more);
849
850        echo '<a href="'.$src.'" target="_blank" title="'.$lang['mediaview'].'">';
851        echo '<img src="'.$src.'" alt="" style="max-width: '.$size[0].'px;" />';
852        echo '</a>';
853
854        echo '</div>'.NL;
855    }
856}
857
858/**
859 * Prints mediafile action buttons
860 *
861 * @author Kate Arzamastseva <pshns@ukr.net>
862 */
863function media_preview_buttons($image, $auth, $rev=false) {
864    global $lang, $conf;
865
866    echo '<ul class="actions">'.NL;
867
868    if($auth >= AUTH_DELETE && !$rev && @file_exists(mediaFN($image))){
869
870        // delete button
871        $form = new Doku_Form(array('id' => 'mediamanager__btn_delete',
872            'action'=>media_managerURL(array('delete' => $image), '&')));
873        $form->addElement(form_makeButton('submit','',$lang['btn_delete']));
874        echo '<li>';
875        $form->printForm();
876        echo '</li>'.NL;
877    }
878
879    $auth_ow = (($conf['mediarevisions']) ? AUTH_UPLOAD : AUTH_DELETE);
880    if($auth >= $auth_ow && !$rev){
881
882        // upload new version button
883        $form = new Doku_Form(array('id' => 'mediamanager__btn_update',
884            'action'=>media_managerURL(array('image' => $image, 'mediado' => 'update'), '&')));
885        $form->addElement(form_makeButton('submit','',$lang['media_update']));
886        echo '<li>';
887        $form->printForm();
888        echo '</li>'.NL;
889    }
890
891    if($auth >= AUTH_UPLOAD && $rev && $conf['mediarevisions'] && @file_exists(mediaFN($image, $rev))){
892
893        // restore button
894        $form = new Doku_Form(array('id' => 'mediamanager__btn_restore',
895            'action'=>media_managerURL(array('image' => $image), '&')));
896        $form->addHidden('mediado','restore');
897        $form->addHidden('rev',$rev);
898        $form->addElement(form_makeButton('submit','',$lang['media_restore']));
899        echo '<li>';
900        $form->printForm();
901        echo '</li>'.NL;
902    }
903
904    echo '</ul>'.NL;
905}
906
907/**
908 * Returns image width and height for mediamanager preview panel
909 *
910 * @author Kate Arzamastseva <pshns@ukr.net>
911 * @param string $image
912 * @param int $rev
913 * @param JpegMeta $meta
914 * @return array
915 */
916function media_image_preview_size($image, $rev, $meta, $size = 500) {
917    if (!preg_match("/\.(jpe?g|gif|png)$/", $image) || !file_exists(mediaFN($image, $rev))) return false;
918
919    $info = getimagesize(mediaFN($image, $rev));
920    $w = (int) $info[0];
921    $h = (int) $info[1];
922
923    if($meta && ($w > $size || $h > $size)){
924        $ratio = $meta->getResizeRatio($size, $size);
925        $w = floor($w * $ratio);
926        $h = floor($h * $ratio);
927    }
928    return array($w, $h);
929}
930
931/**
932 * Returns the requested EXIF/IPTC tag from the image meta
933 *
934 * @author Kate Arzamastseva <pshns@ukr.net>
935 * @param array $tags
936 * @param JpegMeta $meta
937 * @param string $alt
938 * @return string
939 */
940function media_getTag($tags,$meta,$alt=''){
941    if($meta === false) return $alt;
942    $info = $meta->getField($tags);
943    if($info == false) return $alt;
944    return $info;
945}
946
947/**
948 * Returns mediafile tags
949 *
950 * @author Kate Arzamastseva <pshns@ukr.net>
951 * @param JpegMeta $meta
952 * @return array
953 */
954function media_file_tags($meta) {
955    global $config_cascade;
956
957    // load the field descriptions
958    static $fields = null;
959    if(is_null($fields)){
960        $config_files = getConfigFiles('mediameta');
961        foreach ($config_files as $config_file) {
962            if(@file_exists($config_file)) include($config_file);
963        }
964    }
965
966    $tags = array();
967
968    foreach($fields as $key => $tag){
969        $t = array();
970        if (!empty($tag[0])) $t = array($tag[0]);
971        if(is_array($tag[3])) $t = array_merge($t,$tag[3]);
972        $value = media_getTag($t, $meta);
973        $tags[] = array('tag' => $tag, 'value' => $value);
974    }
975
976    return $tags;
977}
978
979/**
980 * Prints mediafile tags
981 *
982 * @author Kate Arzamastseva <pshns@ukr.net>
983 */
984function media_details($image, $auth, $rev=false, $meta=false) {
985    global $lang;
986
987    if (!$meta) $meta = new JpegMeta(mediaFN($image, $rev));
988    $tags = media_file_tags($meta);
989
990    echo '<dl>'.NL;
991    foreach($tags as $tag){
992        if ($tag['value']) {
993            $value = cleanText($tag['value']);
994            echo '<dt>'.$lang[$tag['tag'][1]].':</dt><dd>';
995            if ($tag['tag'][2] == 'date') echo dformat($value);
996            else echo hsc($value);
997            echo '</dd>'.NL;
998        }
999    }
1000    echo '</dl>'.NL;
1001}
1002
1003/**
1004 * Shows difference between two revisions of file
1005 *
1006 * @author Kate Arzamastseva <pshns@ukr.net>
1007 */
1008function media_diff($image, $ns, $auth, $fromajax = false) {
1009    global $lang;
1010    global $conf;
1011    global $INPUT;
1012
1013    if ($auth < AUTH_READ || !$image || !$conf['mediarevisions']) return '';
1014
1015    $rev1 = $INPUT->int('rev');
1016
1017    $rev2 = $INPUT->ref('rev2');
1018    if(is_array($rev2)){
1019        $rev1 = (int) $rev2[0];
1020        $rev2 = (int) $rev2[1];
1021
1022        if(!$rev1){
1023            $rev1 = $rev2;
1024            unset($rev2);
1025        }
1026    }else{
1027        $rev2 = $INPUT->int('rev2');
1028    }
1029
1030    if ($rev1 && !file_exists(mediaFN($image, $rev1))) $rev1 = false;
1031    if ($rev2 && !file_exists(mediaFN($image, $rev2))) $rev2 = false;
1032
1033    if($rev1 && $rev2){            // two specific revisions wanted
1034        // make sure order is correct (older on the left)
1035        if($rev1 < $rev2){
1036            $l_rev = $rev1;
1037            $r_rev = $rev2;
1038        }else{
1039            $l_rev = $rev2;
1040            $r_rev = $rev1;
1041        }
1042    }elseif($rev1){                // single revision given, compare to current
1043        $r_rev = '';
1044        $l_rev = $rev1;
1045    }else{                        // no revision was given, compare previous to current
1046        $r_rev = '';
1047        $revs = getRevisions($image, 0, 1, 8192, true);
1048        if (file_exists(mediaFN($image, $revs[0]))) {
1049            $l_rev = $revs[0];
1050        } else {
1051            $l_rev = '';
1052        }
1053    }
1054
1055    // prepare event data
1056    $data[0] = $image;
1057    $data[1] = $l_rev;
1058    $data[2] = $r_rev;
1059    $data[3] = $ns;
1060    $data[4] = $auth;
1061    $data[5] = $fromajax;
1062
1063    // trigger event
1064    return trigger_event('MEDIA_DIFF', $data, '_media_file_diff', true);
1065
1066}
1067
1068function _media_file_diff($data) {
1069    if(is_array($data) && count($data)===6) {
1070        return media_file_diff($data[0], $data[1], $data[2], $data[3], $data[4], $data[5]);
1071    } else {
1072        return false;
1073    }
1074}
1075
1076/**
1077 * Shows difference between two revisions of image
1078 *
1079 * @author Kate Arzamastseva <pshns@ukr.net>
1080 */
1081function media_file_diff($image, $l_rev, $r_rev, $ns, $auth, $fromajax){
1082    global $lang;
1083    global $config_cascade;
1084    global $INPUT;
1085
1086    $l_meta = new JpegMeta(mediaFN($image, $l_rev));
1087    $r_meta = new JpegMeta(mediaFN($image, $r_rev));
1088
1089    $is_img = preg_match("/\.(jpe?g|gif|png)$/", $image);
1090    if ($is_img) {
1091        $l_size = media_image_preview_size($image, $l_rev, $l_meta);
1092        $r_size = media_image_preview_size($image, $r_rev, $r_meta);
1093        $is_img = ($l_size && $r_size && ($l_size[0] >= 30 || $r_size[0] >= 30));
1094
1095        $difftype = $INPUT->str('difftype');
1096
1097        if (!$fromajax) {
1098            $form = new Doku_Form(array(
1099                'action' => media_managerURL(array(), '&'),
1100                'method' => 'get',
1101                'id' => 'mediamanager__form_diffview',
1102                'class' => 'diffView'
1103            ));
1104            $form->addHidden('sectok', null);
1105            $form->addElement('<input type="hidden" name="rev2[]" value="'.$l_rev.'" ></input>');
1106            $form->addElement('<input type="hidden" name="rev2[]" value="'.$r_rev.'" ></input>');
1107            $form->addHidden('mediado', 'diff');
1108            $form->printForm();
1109
1110            echo NL.'<div id="mediamanager__diff" >'.NL;
1111        }
1112
1113        if ($difftype == 'opacity' || $difftype == 'portions') {
1114            media_image_diff($image, $l_rev, $r_rev, $l_size, $r_size, $difftype);
1115            if (!$fromajax) echo '</div>';
1116            return '';
1117        }
1118    }
1119
1120    list($l_head, $r_head) = html_diff_head($l_rev, $r_rev, $image, true);
1121
1122    ?>
1123    <div class="table">
1124    <table>
1125      <tr>
1126        <th><?php echo $l_head; ?></th>
1127        <th><?php echo $r_head; ?></th>
1128      </tr>
1129    <?php
1130
1131    echo '<tr class="image">';
1132    echo '<td>';
1133    media_preview($image, $auth, $l_rev, $l_meta);
1134    echo '</td>';
1135
1136    echo '<td>';
1137    media_preview($image, $auth, $r_rev, $r_meta);
1138    echo '</td>';
1139    echo '</tr>'.NL;
1140
1141    echo '<tr class="actions">';
1142    echo '<td>';
1143    media_preview_buttons($image, $auth, $l_rev);
1144    echo '</td>';
1145
1146    echo '<td>';
1147    media_preview_buttons($image, $auth, $r_rev);
1148    echo '</td>';
1149    echo '</tr>'.NL;
1150
1151    $l_tags = media_file_tags($l_meta);
1152    $r_tags = media_file_tags($r_meta);
1153    // FIXME r_tags-only stuff
1154    foreach ($l_tags as $key => $l_tag) {
1155        if ($l_tag['value'] != $r_tags[$key]['value']) {
1156            $r_tags[$key]['highlighted'] = true;
1157            $l_tags[$key]['highlighted'] = true;
1158        } else if (!$l_tag['value'] || !$r_tags[$key]['value']) {
1159            unset($r_tags[$key]);
1160            unset($l_tags[$key]);
1161        }
1162    }
1163
1164    echo '<tr>';
1165    foreach(array($l_tags,$r_tags) as $tags){
1166        echo '<td>'.NL;
1167
1168        echo '<dl class="img_tags">';
1169        foreach($tags as $tag){
1170            $value = cleanText($tag['value']);
1171            if (!$value) $value = '-';
1172            echo '<dt>'.$lang[$tag['tag'][1]].':</dt>';
1173            echo '<dd>';
1174            if ($tag['highlighted']) {
1175                echo '<strong>';
1176            }
1177            if ($tag['tag'][2] == 'date') echo dformat($value);
1178            else echo hsc($value);
1179            if ($tag['highlighted']) {
1180                echo '</strong>';
1181            }
1182            echo '</dd>';
1183        }
1184        echo '</dl>'.NL;
1185
1186        echo '</td>';
1187    }
1188    echo '</tr>'.NL;
1189
1190    echo '</table>'.NL;
1191    echo '</div>'.NL;
1192
1193    if ($is_img && !$fromajax) echo '</div>';
1194}
1195
1196/**
1197 * Prints two images side by side
1198 * and slider
1199 *
1200 * @author Kate Arzamastseva <pshns@ukr.net>
1201 * @param string $image
1202 * @param int $l_rev
1203 * @param int $r_rev
1204 * @param array $l_size
1205 * @param array $r_size
1206 * @param string $type
1207 */
1208function media_image_diff($image, $l_rev, $r_rev, $l_size, $r_size, $type) {
1209    if ($l_size != $r_size) {
1210        if ($r_size[0] > $l_size[0]) {
1211            $l_size = $r_size;
1212        }
1213    }
1214
1215    $l_more = array('rev' => $l_rev, 'h' => $l_size[1], 'w' => $l_size[0]);
1216    $r_more = array('rev' => $r_rev, 'h' => $l_size[1], 'w' => $l_size[0]);
1217
1218    $l_src = ml($image, $l_more);
1219    $r_src = ml($image, $r_more);
1220
1221    // slider
1222    echo '<div class="slider" style="max-width: '.($l_size[0]-20).'px;" ></div>'.NL;
1223
1224    // two images in divs
1225    echo '<div class="imageDiff ' . $type . '">'.NL;
1226    echo '<div class="image1" style="max-width: '.$l_size[0].'px;">';
1227    echo '<img src="'.$l_src.'" alt="" />';
1228    echo '</div>'.NL;
1229    echo '<div class="image2" style="max-width: '.$l_size[0].'px;">';
1230    echo '<img src="'.$r_src.'" alt="" />';
1231    echo '</div>'.NL;
1232    echo '</div>'.NL;
1233}
1234
1235/**
1236 * Restores an old revision of a media file
1237 *
1238 * @param string $image
1239 * @param int $rev
1240 * @param int $auth
1241 * @return string - file's id
1242 * @author Kate Arzamastseva <pshns@ukr.net>
1243 */
1244function media_restore($image, $rev, $auth){
1245    global $conf;
1246    if ($auth < AUTH_UPLOAD || !$conf['mediarevisions']) return false;
1247    $removed = (!file_exists(mediaFN($image)) && file_exists(mediaMetaFN($image, '.changes')));
1248    if (!$image || (!file_exists(mediaFN($image)) && !$removed)) return false;
1249    if (!$rev || !file_exists(mediaFN($image, $rev))) return false;
1250    list($iext,$imime,$dl) = mimetype($image);
1251    $res = media_upload_finish(mediaFN($image, $rev),
1252        mediaFN($image),
1253        $image,
1254        $imime,
1255        true,
1256        'copy');
1257    if (is_array($res)) {
1258        msg($res[0], $res[1]);
1259        return false;
1260    }
1261    return $res;
1262}
1263
1264/**
1265 * List all files found by the search request
1266 *
1267 * @author Tobias Sarnowski <sarnowski@cosmocode.de>
1268 * @author Andreas Gohr <gohr@cosmocode.de>
1269 * @author Kate Arzamastseva <pshns@ukr.net>
1270 * @triggers MEDIA_SEARCH
1271 */
1272function media_searchlist($query,$ns,$auth=null,$fullscreen=false,$sort=''){
1273    global $conf;
1274    global $lang;
1275
1276    $ns = cleanID($ns);
1277
1278    if ($query) {
1279        $evdata = array(
1280                'ns'    => $ns,
1281                'data'  => array(),
1282                'query' => $query
1283                );
1284        $evt = new Doku_Event('MEDIA_SEARCH', $evdata);
1285        if ($evt->advise_before()) {
1286            $dir = utf8_encodeFN(str_replace(':','/',$evdata['ns']));
1287            $pattern = '/'.preg_quote($evdata['query'],'/').'/i';
1288            search($evdata['data'],
1289                    $conf['mediadir'],
1290                    'search_media',
1291                    array('showmsg'=>false,'pattern'=>$pattern),
1292                    $dir);
1293        }
1294
1295        $data = array();
1296        foreach ($evdata['data'] as $k => $v) {
1297            $data[$k] = ($sort == 'date') ? $v['mtime'] : $v['id'];
1298        }
1299        array_multisort($data, SORT_DESC, SORT_NUMERIC, $evdata['data']);
1300
1301        $evt->advise_after();
1302        unset($evt);
1303    }
1304
1305    if (!$fullscreen) {
1306        echo '<h1 id="media__ns">'.sprintf($lang['searchmedia_in'],hsc($ns).':*').'</h1>'.NL;
1307        media_searchform($ns,$query);
1308    }
1309
1310    if(!count($evdata['data'])){
1311        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
1312    }else {
1313        if ($fullscreen) {
1314            echo '<ul class="' . _media_get_list_type() . '">';
1315        }
1316        foreach($evdata['data'] as $item){
1317            if (!$fullscreen) media_printfile($item,$item['perm'],'',true);
1318            else media_printfile_thumbs($item,$item['perm'],false,true);
1319        }
1320        if ($fullscreen) echo '</ul>'.NL;
1321    }
1322}
1323
1324/**
1325 * Formats and prints one file in the list
1326 */
1327function media_printfile($item,$auth,$jump,$display_namespace=false){
1328    global $lang;
1329    global $conf;
1330
1331    // Prepare zebra coloring
1332    // I always wanted to use this variable name :-D
1333    static $twibble = 1;
1334    $twibble *= -1;
1335    $zebra = ($twibble == -1) ? 'odd' : 'even';
1336
1337    // Automatically jump to recent action
1338    if($jump == $item['id']) {
1339        $jump = ' id="scroll__here" ';
1340    }else{
1341        $jump = '';
1342    }
1343
1344    // Prepare fileicons
1345    list($ext,$mime,$dl) = mimetype($item['file'],false);
1346    $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
1347    $class = 'select mediafile mf_'.$class;
1348
1349    // Prepare filename
1350    $file = utf8_decodeFN($item['file']);
1351
1352    // Prepare info
1353    $info = '';
1354    if($item['isimg']){
1355        $info .= (int) $item['meta']->getField('File.Width');
1356        $info .= '&#215;';
1357        $info .= (int) $item['meta']->getField('File.Height');
1358        $info .= ' ';
1359    }
1360    $info .= '<i>'.dformat($item['mtime']).'</i>';
1361    $info .= ' ';
1362    $info .= filesize_h($item['size']);
1363
1364    // output
1365    echo '<div class="'.$zebra.'"'.$jump.' title="'.hsc($item['id']).'">'.NL;
1366    if (!$display_namespace) {
1367        echo '<a id="h_:'.$item['id'].'" class="'.$class.'">'.hsc($file).'</a> ';
1368    } else {
1369        echo '<a id="h_:'.$item['id'].'" class="'.$class.'">'.hsc($item['id']).'</a><br/>';
1370    }
1371    echo '<span class="info">('.$info.')</span>'.NL;
1372
1373    // view button
1374    $link = ml($item['id'],'',true);
1375    echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_BASE.'lib/images/magnifier.png" '.
1376        'alt="'.$lang['mediaview'].'" title="'.$lang['mediaview'].'" class="btn" /></a>';
1377
1378    // mediamanager button
1379    $link = wl('',array('do'=>'media','image'=>$item['id'],'ns'=>getNS($item['id'])));
1380    echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_BASE.'lib/images/mediamanager.png" '.
1381        'alt="'.$lang['btn_media'].'" title="'.$lang['btn_media'].'" class="btn" /></a>';
1382
1383    // delete button
1384    if($item['writable'] && $auth >= AUTH_DELETE){
1385        $link = DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']).
1386            '&amp;sectok='.getSecurityToken();
1387        echo ' <a href="'.$link.'" class="btn_media_delete" title="'.$item['id'].'">'.
1388            '<img src="'.DOKU_BASE.'lib/images/trash.png" alt="'.$lang['btn_delete'].'" '.
1389            'title="'.$lang['btn_delete'].'" class="btn" /></a>';
1390    }
1391
1392    echo '<div class="example" id="ex_'.str_replace(':','_',$item['id']).'">';
1393    echo $lang['mediausage'].' <code>{{:'.$item['id'].'}}</code>';
1394    echo '</div>';
1395    if($item['isimg']) media_printimgdetail($item);
1396    echo '<div class="clearer"></div>'.NL;
1397    echo '</div>'.NL;
1398}
1399
1400function media_printicon($filename){
1401    list($ext,$mime,$dl) = mimetype(mediaFN($filename),false);
1402
1403    if (@file_exists(DOKU_INC.'lib/images/fileicons/'.$ext.'.png')) {
1404        $icon = DOKU_BASE.'lib/images/fileicons/'.$ext.'.png';
1405    } else {
1406        $icon = DOKU_BASE.'lib/images/fileicons/file.png';
1407    }
1408
1409    return '<img src="'.$icon.'" alt="'.$filename.'" class="icon" />';
1410
1411}
1412
1413/**
1414 * Formats and prints one file in the list in the thumbnails view
1415 *
1416 * @author Kate Arzamastseva <pshns@ukr.net>
1417 */
1418function media_printfile_thumbs($item,$auth,$jump=false,$display_namespace=false){
1419    global $lang;
1420    global $conf;
1421
1422    // Prepare filename
1423    $file = utf8_decodeFN($item['file']);
1424
1425    // output
1426    echo '<li><dl title="'.hsc($item['id']).'">'.NL;
1427
1428        echo '<dt>';
1429    if($item['isimg']) {
1430        media_printimgdetail($item, true);
1431
1432    } else {
1433        echo '<a id="d_:'.$item['id'].'" class="image" title="'.$item['id'].'" href="'.
1434            media_managerURL(array('image' => hsc($item['id']), 'ns' => getNS($item['id']),
1435            'tab_details' => 'view')).'">';
1436        echo media_printicon($item['id']);
1437        echo '</a>';
1438    }
1439    echo '</dt>'.NL;
1440    if (!$display_namespace) {
1441        $name = hsc($file);
1442    } else {
1443        $name = hsc($item['id']);
1444    }
1445    echo '<dd class="name"><a href="'.media_managerURL(array('image' => hsc($item['id']), 'ns' => getNS($item['id']),
1446        'tab_details' => 'view')).'" id="h_:'.$item['id'].'">'.$name.'</a></dd>'.NL;
1447
1448    if($item['isimg']){
1449        $size = '';
1450        $size .= (int) $item['meta']->getField('File.Width');
1451        $size .= '&#215;';
1452        $size .= (int) $item['meta']->getField('File.Height');
1453        echo '<dd class="size">'.$size.'</dd>'.NL;
1454    } else {
1455        echo '<dd class="size">&#160;</dd>'.NL;
1456    }
1457    $date = dformat($item['mtime']);
1458    echo '<dd class="date">'.$date.'</dd>'.NL;
1459    $filesize = filesize_h($item['size']);
1460    echo '<dd class="filesize">'.$filesize.'</dd>'.NL;
1461    echo '</dl></li>'.NL;
1462}
1463
1464/**
1465 * Prints a thumbnail and metainfos
1466 */
1467function media_printimgdetail($item, $fullscreen=false){
1468    // prepare thumbnail
1469    $size = $fullscreen ? 90 : 120;
1470
1471    $w = (int) $item['meta']->getField('File.Width');
1472    $h = (int) $item['meta']->getField('File.Height');
1473    if($w>$size || $h>$size){
1474        if (!$fullscreen) {
1475            $ratio = $item['meta']->getResizeRatio($size);
1476        } else {
1477            $ratio = $item['meta']->getResizeRatio($size,$size);
1478        }
1479        $w = floor($w * $ratio);
1480        $h = floor($h * $ratio);
1481    }
1482    $src = ml($item['id'],array('w'=>$w,'h'=>$h,'t'=>$item['mtime']));
1483    $p = array();
1484    if (!$fullscreen) {
1485        // In fullscreen mediamanager view, image resizing is done via CSS.
1486        $p['width']  = $w;
1487        $p['height'] = $h;
1488    }
1489    $p['alt']    = $item['id'];
1490    $att = buildAttributes($p);
1491
1492    // output
1493    if ($fullscreen) {
1494        echo '<a id="l_:'.$item['id'].'" class="image thumb" href="'.
1495            media_managerURL(array('image' => hsc($item['id']), 'ns' => getNS($item['id']), 'tab_details' => 'view')).'">';
1496        echo '<img src="'.$src.'" '.$att.' />';
1497        echo '</a>';
1498    }
1499
1500    if ($fullscreen) return;
1501
1502    echo '<div class="detail">';
1503    echo '<div class="thumb">';
1504    echo '<a id="d_:'.$item['id'].'" class="select">';
1505    echo '<img src="'.$src.'" '.$att.' />';
1506    echo '</a>';
1507    echo '</div>';
1508
1509    // read EXIF/IPTC data
1510    $t = $item['meta']->getField(array('IPTC.Headline','xmp.dc:title'));
1511    $d = $item['meta']->getField(array('IPTC.Caption','EXIF.UserComment',
1512                'EXIF.TIFFImageDescription',
1513                'EXIF.TIFFUserComment'));
1514    if(utf8_strlen($d) > 250) $d = utf8_substr($d,0,250).'...';
1515    $k = $item['meta']->getField(array('IPTC.Keywords','IPTC.Category','xmp.dc:subject'));
1516
1517    // print EXIF/IPTC data
1518    if($t || $d || $k ){
1519        echo '<p>';
1520        if($t) echo '<strong>'.htmlspecialchars($t).'</strong><br />';
1521        if($d) echo htmlspecialchars($d).'<br />';
1522        if($t) echo '<em>'.htmlspecialchars($k).'</em>';
1523        echo '</p>';
1524    }
1525    echo '</div>';
1526}
1527
1528/**
1529 * Build link based on the current, adding/rewriting
1530 * parameters
1531 *
1532 * @author Kate Arzamastseva <pshns@ukr.net>
1533 * @param array $params
1534 * @param string $amp - separator
1535 * @return string - link
1536 */
1537function media_managerURL($params=false, $amp='&amp;', $abs=false, $params_array=false) {
1538    global $conf;
1539    global $ID;
1540    global $INPUT;
1541
1542    $gets = array('do' => 'media');
1543    $media_manager_params = array('tab_files', 'tab_details', 'image', 'ns', 'list', 'sort');
1544    foreach ($media_manager_params as $x) {
1545        if ($INPUT->has($x)) $gets[$x] = $INPUT->str($x);
1546    }
1547
1548    if ($params) {
1549        $gets = $params + $gets;
1550    }
1551    unset($gets['id']);
1552    if (isset($gets['delete'])) {
1553        unset($gets['image']);
1554        unset($gets['tab_details']);
1555    }
1556
1557    if ($params_array) return $gets;
1558
1559    return wl($ID,$gets,$abs,$amp);
1560}
1561
1562/**
1563 * Print the media upload form if permissions are correct
1564 *
1565 * @author Andreas Gohr <andi@splitbrain.org>
1566 * @author Kate Arzamastseva <pshns@ukr.net>
1567 */
1568function media_uploadform($ns, $auth, $fullscreen = false){
1569    global $lang;
1570    global $conf;
1571    global $INPUT;
1572
1573    if($auth < AUTH_UPLOAD) {
1574        echo '<div class="nothing">'.$lang['media_perm_upload'].'</div>'.NL;
1575        return;
1576    }
1577    $auth_ow = (($conf['mediarevisions']) ? AUTH_UPLOAD : AUTH_DELETE);
1578
1579    $update = false;
1580    $id = '';
1581    if ($auth >= $auth_ow && $fullscreen && $INPUT->str('mediado') == 'update') {
1582        $update = true;
1583        $id = cleanID($INPUT->str('image'));
1584    }
1585
1586    // The default HTML upload form
1587    $params = array('id'      => 'dw__upload',
1588                    'enctype' => 'multipart/form-data');
1589    if (!$fullscreen) {
1590        $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php';
1591    } else {
1592        $params['action'] = media_managerURL(array('tab_files' => 'files',
1593            'tab_details' => 'view'), '&');
1594    }
1595
1596    $form = new Doku_Form($params);
1597    if (!$fullscreen) echo '<div class="upload">' . $lang['mediaupload'] . '</div>';
1598    $form->addElement(formSecurityToken());
1599    $form->addHidden('ns', hsc($ns));
1600    $form->addElement(form_makeOpenTag('p'));
1601    $form->addElement(form_makeFileField('upload', $lang['txt_upload'].':', 'upload__file'));
1602    $form->addElement(form_makeCloseTag('p'));
1603    $form->addElement(form_makeOpenTag('p'));
1604    $form->addElement(form_makeTextField('mediaid', noNS($id), $lang['txt_filename'].':', 'upload__name'));
1605    $form->addElement(form_makeButton('submit', '', $lang['btn_upload']));
1606    $form->addElement(form_makeCloseTag('p'));
1607
1608    if($auth >= $auth_ow){
1609        $form->addElement(form_makeOpenTag('p'));
1610        $attrs = array();
1611        if ($update) $attrs['checked'] = 'checked';
1612        $form->addElement(form_makeCheckboxField('ow', 1, $lang['txt_overwrt'], 'dw__ow', 'check', $attrs));
1613        $form->addElement(form_makeCloseTag('p'));
1614    }
1615
1616    echo NL.'<div id="mediamanager__uploader">'.NL;
1617    html_form('upload', $form);
1618
1619    echo '</div>'.NL;
1620
1621    echo '<p class="maxsize">';
1622    printf($lang['maxuploadsize'],filesize_h(media_getuploadsize()));
1623    echo '</p>'.NL;
1624
1625}
1626
1627/**
1628 * Returns the size uploaded files may have
1629 *
1630 * This uses a conservative approach using the lowest number found
1631 * in any of the limiting ini settings
1632 *
1633 * @returns int size in bytes
1634 */
1635function media_getuploadsize(){
1636    $okay = 0;
1637
1638    $post = (int) php_to_byte(@ini_get('post_max_size'));
1639    $suho = (int) php_to_byte(@ini_get('suhosin.post.max_value_length'));
1640    $upld = (int) php_to_byte(@ini_get('upload_max_filesize'));
1641
1642    if($post && ($post < $okay || $okay == 0)) $okay = $post;
1643    if($suho && ($suho < $okay || $okay == 0)) $okay = $suho;
1644    if($upld && ($upld < $okay || $okay == 0)) $okay = $upld;
1645
1646    return $okay;
1647}
1648
1649/**
1650 * Print the search field form
1651 *
1652 * @author Tobias Sarnowski <sarnowski@cosmocode.de>
1653 * @author Kate Arzamastseva <pshns@ukr.net>
1654 */
1655function media_searchform($ns,$query='',$fullscreen=false){
1656    global $lang;
1657
1658    // The default HTML search form
1659    $params = array('id' => 'dw__mediasearch');
1660    if (!$fullscreen) {
1661        $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php';
1662    } else {
1663        $params['action'] = media_managerURL(array(), '&');
1664    }
1665    $form = new Doku_Form($params);
1666    $form->addHidden('ns', $ns);
1667    $form->addHidden($fullscreen ? 'mediado' : 'do', 'searchlist');
1668
1669    if (!$fullscreen) $form->addElement('<div class="upload">' . $lang['mediasearch'] . '</div>'.NL);
1670    $form->addElement(form_makeOpenTag('p'));
1671    $form->addElement(form_makeTextField('q', $query,$lang['searchmedia'],'','',array('title'=>sprintf($lang['searchmedia_in'],hsc($ns).':*'))));
1672    $form->addElement(form_makeButton('submit', '', $lang['btn_search']));
1673    $form->addElement(form_makeCloseTag('p'));
1674    html_form('searchmedia', $form);
1675}
1676
1677/**
1678 * Build a tree outline of available media namespaces
1679 *
1680 * @author Andreas Gohr <andi@splitbrain.org>
1681 */
1682function media_nstree($ns){
1683    global $conf;
1684    global $lang;
1685
1686    // currently selected namespace
1687    $ns  = cleanID($ns);
1688    if(empty($ns)){
1689        global $ID;
1690        $ns = dirname(str_replace(':','/',$ID));
1691        if($ns == '.') $ns ='';
1692    }
1693    $ns  = utf8_encodeFN(str_replace(':','/',$ns));
1694
1695    $data = array();
1696    search($data,$conf['mediadir'],'search_index',array('ns' => $ns, 'nofiles' => true));
1697
1698    // wrap a list with the root level around the other namespaces
1699    array_unshift($data, array('level' => 0, 'id' => '', 'open' =>'true',
1700                               'label' => '['.$lang['mediaroot'].']'));
1701
1702    echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
1703}
1704
1705/**
1706 * Userfunction for html_buildlist
1707 *
1708 * Prints a media namespace tree item
1709 *
1710 * @author Andreas Gohr <andi@splitbrain.org>
1711 */
1712function media_nstree_item($item){
1713    global $INPUT;
1714    $pos   = strrpos($item['id'], ':');
1715    $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
1716    if(!$item['label']) $item['label'] = $label;
1717
1718    $ret  = '';
1719    if (!($INPUT->str('do') == 'media'))
1720    $ret .= '<a href="'.DOKU_BASE.'lib/exe/mediamanager.php?ns='.idfilter($item['id']).'" class="idx_dir">';
1721    else $ret .= '<a href="'.media_managerURL(array('ns' => idfilter($item['id'], false), 'tab_files' => 'files'))
1722        .'" class="idx_dir">';
1723    $ret .= $item['label'];
1724    $ret .= '</a>';
1725    return $ret;
1726}
1727
1728/**
1729 * Userfunction for html_buildlist
1730 *
1731 * Prints a media namespace tree item opener
1732 *
1733 * @author Andreas Gohr <andi@splitbrain.org>
1734 */
1735function media_nstree_li($item){
1736    $class='media level'.$item['level'];
1737    if($item['open']){
1738        $class .= ' open';
1739        $img   = DOKU_BASE.'lib/images/minus.gif';
1740        $alt   = '−';
1741    }else{
1742        $class .= ' closed';
1743        $img   = DOKU_BASE.'lib/images/plus.gif';
1744        $alt   = '+';
1745    }
1746    // TODO: only deliver an image if it actually has a subtree...
1747    return '<li class="'.$class.'">'.
1748        '<img src="'.$img.'" alt="'.$alt.'" />';
1749}
1750
1751/**
1752 * Resizes the given image to the given size
1753 *
1754 * @author  Andreas Gohr <andi@splitbrain.org>
1755 */
1756function media_resize_image($file, $ext, $w, $h=0){
1757    global $conf;
1758
1759    $info = @getimagesize($file); //get original size
1760    if($info == false) return $file; // that's no image - it's a spaceship!
1761
1762    if(!$h) $h = round(($w * $info[1]) / $info[0]);
1763
1764    // we wont scale up to infinity
1765    if($w > 2000 || $h > 2000) return $file;
1766
1767    //cache
1768    $local = getCacheName($file,'.media.'.$w.'x'.$h.'.'.$ext);
1769    $mtime = @filemtime($local); // 0 if not exists
1770
1771    if( $mtime > filemtime($file) ||
1772            media_resize_imageIM($ext,$file,$info[0],$info[1],$local,$w,$h) ||
1773            media_resize_imageGD($ext,$file,$info[0],$info[1],$local,$w,$h) ){
1774        if($conf['fperm']) chmod($local, $conf['fperm']);
1775        return $local;
1776    }
1777    //still here? resizing failed
1778    return $file;
1779}
1780
1781/**
1782 * Crops the given image to the wanted ratio, then calls media_resize_image to scale it
1783 * to the wanted size
1784 *
1785 * Crops are centered horizontally but prefer the upper third of an vertical
1786 * image because most pics are more interesting in that area (rule of thirds)
1787 *
1788 * @author  Andreas Gohr <andi@splitbrain.org>
1789 */
1790function media_crop_image($file, $ext, $w, $h=0){
1791    global $conf;
1792
1793    if(!$h) $h = $w;
1794    $info = @getimagesize($file); //get original size
1795    if($info == false) return $file; // that's no image - it's a spaceship!
1796
1797    // calculate crop size
1798    $fr = $info[0]/$info[1];
1799    $tr = $w/$h;
1800    if($tr >= 1){
1801        if($tr > $fr){
1802            $cw = $info[0];
1803            $ch = (int) $info[0]/$tr;
1804        }else{
1805            $cw = (int) $info[1]*$tr;
1806            $ch = $info[1];
1807        }
1808    }else{
1809        if($tr < $fr){
1810            $cw = (int) $info[1]*$tr;
1811            $ch = $info[1];
1812        }else{
1813            $cw = $info[0];
1814            $ch = (int) $info[0]/$tr;
1815        }
1816    }
1817    // calculate crop offset
1818    $cx = (int) ($info[0]-$cw)/2;
1819    $cy = (int) ($info[1]-$ch)/3;
1820
1821    //cache
1822    $local = getCacheName($file,'.media.'.$cw.'x'.$ch.'.crop.'.$ext);
1823    $mtime = @filemtime($local); // 0 if not exists
1824
1825    if( $mtime > @filemtime($file) ||
1826            media_crop_imageIM($ext,$file,$info[0],$info[1],$local,$cw,$ch,$cx,$cy) ||
1827            media_resize_imageGD($ext,$file,$cw,$ch,$local,$cw,$ch,$cx,$cy) ){
1828        if($conf['fperm']) chmod($local, $conf['fperm']);
1829        return media_resize_image($local,$ext, $w, $h);
1830    }
1831
1832    //still here? cropping failed
1833    return media_resize_image($file,$ext, $w, $h);
1834}
1835
1836/**
1837 * Download a remote file and return local filename
1838 *
1839 * returns false if download fails. Uses cached file if available and
1840 * wanted
1841 *
1842 * @author  Andreas Gohr <andi@splitbrain.org>
1843 * @author  Pavel Vitis <Pavel.Vitis@seznam.cz>
1844 */
1845function media_get_from_URL($url,$ext,$cache){
1846    global $conf;
1847
1848    // if no cache or fetchsize just redirect
1849    if ($cache==0)           return false;
1850    if (!$conf['fetchsize']) return false;
1851
1852    $local = getCacheName(strtolower($url),".media.$ext");
1853    $mtime = @filemtime($local); // 0 if not exists
1854
1855    //decide if download needed:
1856    if( ($mtime == 0) ||                           // cache does not exist
1857            ($cache != -1 && $mtime < time()-$cache)   // 'recache' and cache has expired
1858      ){
1859        if(media_image_download($url,$local)){
1860            return $local;
1861        }else{
1862            return false;
1863        }
1864    }
1865
1866    //if cache exists use it else
1867    if($mtime) return $local;
1868
1869    //else return false
1870    return false;
1871}
1872
1873/**
1874 * Download image files
1875 *
1876 * @author Andreas Gohr <andi@splitbrain.org>
1877 */
1878function media_image_download($url,$file){
1879    global $conf;
1880    $http = new DokuHTTPClient();
1881    $http->max_bodysize = $conf['fetchsize'];
1882    $http->timeout = 25; //max. 25 sec
1883    $http->header_regexp = '!\r\nContent-Type: image/(jpe?g|gif|png)!i';
1884
1885    $data = $http->get($url);
1886    if(!$data) return false;
1887
1888    $fileexists = @file_exists($file);
1889    $fp = @fopen($file,"w");
1890    if(!$fp) return false;
1891    fwrite($fp,$data);
1892    fclose($fp);
1893    if(!$fileexists and $conf['fperm']) chmod($file, $conf['fperm']);
1894
1895    // check if it is really an image
1896    $info = @getimagesize($file);
1897    if(!$info){
1898        @unlink($file);
1899        return false;
1900    }
1901
1902    return true;
1903}
1904
1905/**
1906 * resize images using external ImageMagick convert program
1907 *
1908 * @author Pavel Vitis <Pavel.Vitis@seznam.cz>
1909 * @author Andreas Gohr <andi@splitbrain.org>
1910 */
1911function media_resize_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h){
1912    global $conf;
1913
1914    // check if convert is configured
1915    if(!$conf['im_convert']) return false;
1916
1917    // prepare command
1918    $cmd  = $conf['im_convert'];
1919    $cmd .= ' -resize '.$to_w.'x'.$to_h.'!';
1920    if ($ext == 'jpg' || $ext == 'jpeg') {
1921        $cmd .= ' -quality '.$conf['jpg_quality'];
1922    }
1923    $cmd .= " $from $to";
1924
1925    @exec($cmd,$out,$retval);
1926    if ($retval == 0) return true;
1927    return false;
1928}
1929
1930/**
1931 * crop images using external ImageMagick convert program
1932 *
1933 * @author Andreas Gohr <andi@splitbrain.org>
1934 */
1935function media_crop_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x,$ofs_y){
1936    global $conf;
1937
1938    // check if convert is configured
1939    if(!$conf['im_convert']) return false;
1940
1941    // prepare command
1942    $cmd  = $conf['im_convert'];
1943    $cmd .= ' -crop '.$to_w.'x'.$to_h.'+'.$ofs_x.'+'.$ofs_y;
1944    if ($ext == 'jpg' || $ext == 'jpeg') {
1945        $cmd .= ' -quality '.$conf['jpg_quality'];
1946    }
1947    $cmd .= " $from $to";
1948
1949    @exec($cmd,$out,$retval);
1950    if ($retval == 0) return true;
1951    return false;
1952}
1953
1954/**
1955 * resize or crop images using PHP's libGD support
1956 *
1957 * @author Andreas Gohr <andi@splitbrain.org>
1958 * @author Sebastian Wienecke <s_wienecke@web.de>
1959 */
1960function media_resize_imageGD($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x=0,$ofs_y=0){
1961    global $conf;
1962
1963    if($conf['gdlib'] < 1) return false; //no GDlib available or wanted
1964
1965    // check available memory
1966    if(!is_mem_available(($from_w * $from_h * 4) + ($to_w * $to_h * 4))){
1967        return false;
1968    }
1969
1970    // create an image of the given filetype
1971    if ($ext == 'jpg' || $ext == 'jpeg'){
1972        if(!function_exists("imagecreatefromjpeg")) return false;
1973        $image = @imagecreatefromjpeg($from);
1974    }elseif($ext == 'png') {
1975        if(!function_exists("imagecreatefrompng")) return false;
1976        $image = @imagecreatefrompng($from);
1977
1978    }elseif($ext == 'gif') {
1979        if(!function_exists("imagecreatefromgif")) return false;
1980        $image = @imagecreatefromgif($from);
1981    }
1982    if(!$image) return false;
1983
1984    if(($conf['gdlib']>1) && function_exists("imagecreatetruecolor") && $ext != 'gif'){
1985        $newimg = @imagecreatetruecolor ($to_w, $to_h);
1986    }
1987    if(!$newimg) $newimg = @imagecreate($to_w, $to_h);
1988    if(!$newimg){
1989        imagedestroy($image);
1990        return false;
1991    }
1992
1993    //keep png alpha channel if possible
1994    if($ext == 'png' && $conf['gdlib']>1 && function_exists('imagesavealpha')){
1995        imagealphablending($newimg, false);
1996        imagesavealpha($newimg,true);
1997    }
1998
1999    //keep gif transparent color if possible
2000    if($ext == 'gif' && function_exists('imagefill') && function_exists('imagecolorallocate')) {
2001        if(function_exists('imagecolorsforindex') && function_exists('imagecolortransparent')) {
2002            $transcolorindex = @imagecolortransparent($image);
2003            if($transcolorindex >= 0 ) { //transparent color exists
2004                $transcolor = @imagecolorsforindex($image, $transcolorindex);
2005                $transcolorindex = @imagecolorallocate($newimg, $transcolor['red'], $transcolor['green'], $transcolor['blue']);
2006                @imagefill($newimg, 0, 0, $transcolorindex);
2007                @imagecolortransparent($newimg, $transcolorindex);
2008            }else{ //filling with white
2009                $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
2010                @imagefill($newimg, 0, 0, $whitecolorindex);
2011            }
2012        }else{ //filling with white
2013            $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
2014            @imagefill($newimg, 0, 0, $whitecolorindex);
2015        }
2016    }
2017
2018    //try resampling first
2019    if(function_exists("imagecopyresampled")){
2020        if(!@imagecopyresampled($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h)) {
2021            imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
2022        }
2023    }else{
2024        imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
2025    }
2026
2027    $okay = false;
2028    if ($ext == 'jpg' || $ext == 'jpeg'){
2029        if(!function_exists('imagejpeg')){
2030            $okay = false;
2031        }else{
2032            $okay = imagejpeg($newimg, $to, $conf['jpg_quality']);
2033        }
2034    }elseif($ext == 'png') {
2035        if(!function_exists('imagepng')){
2036            $okay = false;
2037        }else{
2038            $okay =  imagepng($newimg, $to);
2039        }
2040    }elseif($ext == 'gif') {
2041        if(!function_exists('imagegif')){
2042            $okay = false;
2043        }else{
2044            $okay = imagegif($newimg, $to);
2045        }
2046    }
2047
2048    // destroy GD image ressources
2049    if($image) imagedestroy($image);
2050    if($newimg) imagedestroy($newimg);
2051
2052    return $okay;
2053}
2054
2055/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
2056