xref: /dokuwiki/inc/media.php (revision dd9ba38e965cfc3c06fbb80fed65556dbfbfda1c) 
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,$fullscreen = false){
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    if (!$fullscreen) {
112        echo '<h1>'.hsc(noNS($id)).'</h1>'.NL;
113        $action = DOKU_BASE.'lib/exe/mediamanager.php';
114    } else {
115        $action = media_managerURL(array('tab_details' => 'view'), '&');
116    }
117    echo '<form action="'.$action.'" id="mediamanager__save_meta" accept-charset="utf-8" method="post" class="meta">'.NL;
118
119    formSecurityToken();
120    foreach($fields as $key => $field){
121        // get current value
122        if (empty($field[0])) continue;
123        $tags = array($field[0]);
124        if(is_array($field[3])) $tags = array_merge($tags,$field[3]);
125        $value = tpl_img_getTag($tags,'',$src);
126        $value = cleanText($value);
127
128        // prepare attributes
129        $p = array();
130        $p['class'] = 'edit';
131        $p['id']    = 'meta__'.$key;
132        $p['name']  = 'meta['.$field[0].']';
133
134        // put label
135        echo '<div class="metafield">';
136        echo '<label for="meta__'.$key.'">';
137        echo ($lang[$field[1]]) ? $lang[$field[1]] : $field[1];
138        echo ':</label>';
139
140        // put input field
141        if($field[2] == 'text'){
142            $p['value'] = $value;
143            $p['type']  = 'text';
144            $att = buildAttributes($p);
145            echo "<input $att/>".NL;
146        }else{
147            $att = buildAttributes($p);
148            echo "<textarea $att rows=\"6\" cols=\"50\">".formText($value).'</textarea>'.NL;
149        }
150        echo '</div>'.NL;
151    }
152    echo '<div class="buttons">'.NL;
153    echo '<input type="hidden" name="img" value="'.hsc($id).'" />'.NL;
154    if (!$fullscreen) {
155        $do = 'do';
156    } else {
157        echo '<input type="hidden" name="mediado" value="save" />';
158        $do = 'mediado';
159    }
160    echo '<input name="'.$do.'[save]" type="submit" value="'.$lang['btn_save'].
161        '" title="'.$lang['btn_save'].' [S]" accesskey="s" class="button" />'.NL;
162    if (!$fullscreen)
163    echo '<input name="do[cancel]" type="submit" value="'.$lang['btn_cancel'].
164        '" title="'.$lang['btn_cancel'].' [C]" accesskey="c" class="button" />'.NL;
165    echo '</div>'.NL;
166    echo '</form>'.NL;
167}
168
169/**
170 * Convenience function to check if a media file is still in use
171 *
172 * @author Michael Klier <chi@chimeric.de>
173 */
174function media_inuse($id) {
175    global $conf;
176    $mediareferences = array();
177    if($conf['refcheck']){
178        $mediareferences = ft_mediause($id,$conf['refshow']);
179        if(!count($mediareferences)) {
180            return false;
181        } else {
182            return $mediareferences;
183        }
184    } else {
185        return false;
186    }
187}
188
189define('DOKU_MEDIA_DELETED', 1);
190define('DOKU_MEDIA_NOT_AUTH', 2);
191define('DOKU_MEDIA_INUSE', 4);
192define('DOKU_MEDIA_EMPTY_NS', 8);
193
194/**
195 * Handles media file deletions
196 *
197 * If configured, checks for media references before deletion
198 *
199 * @author Andreas Gohr <andi@splitbrain.org>
200 * @return int One of: 0,
201                       DOKU_MEDIA_DELETED,
202                       DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS,
203                       DOKU_MEDIA_NOT_AUTH,
204                       DOKU_MEDIA_INUSE
205 */
206function media_delete($id,$auth){
207    global $lang;
208    if($auth < AUTH_DELETE) return DOKU_MEDIA_NOT_AUTH;
209    if(media_inuse($id)) return DOKU_MEDIA_INUSE;
210
211    $file = mediaFN($id);
212
213    // trigger an event - MEDIA_DELETE_FILE
214    $data['id']   = $id;
215    $data['name'] = basename($file);
216    $data['path'] = $file;
217    $data['size'] = (@file_exists($file)) ? filesize($file) : 0;
218
219    $data['unl'] = false;
220    $data['del'] = false;
221    $evt = new Doku_Event('MEDIA_DELETE_FILE',$data);
222    if ($evt->advise_before()) {
223        $old = @filemtime($file);
224        if(!@file_exists(mediaFN($id, $old)) && @file_exists($file)) {
225            // add old revision to the attic
226            media_saveOldRevision($id);
227        }
228
229        $data['unl'] = @unlink($file);
230        if($data['unl']){
231            addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_DELETE, $lang['deleted']);
232            $data['del'] = io_sweepNS($id,'mediadir');
233        }
234    }
235    $evt->advise_after();
236    unset($evt);
237
238    if($data['unl'] && $data['del']){
239        return DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS;
240    }
241
242    return $data['unl'] ? DOKU_MEDIA_DELETED : 0;
243}
244
245/**
246 * Handles media file uploads
247 *
248 * @author Andreas Gohr <andi@splitbrain.org>
249 * @author Michael Klier <chi@chimeric.de>
250 * @return mixed false on error, id of the new file on success
251 */
252function media_upload($ns,$auth){
253    if(!checkSecurityToken()) return false;
254    global $lang;
255
256    // get file and id
257    $id   = $_POST['mediaid'];
258    $file = $_FILES['upload'];
259    if(empty($id)) $id = $file['name'];
260
261    // check for errors (messages are done in lib/exe/mediamanager.php)
262    if($file['error']) return false;
263
264    // check extensions
265    list($fext,$fmime,$dl) = mimetype($file['name']);
266    list($iext,$imime,$dl) = mimetype($id);
267    if($fext && !$iext){
268        // no extension specified in id - read original one
269        $id   .= '.'.$fext;
270        $imime = $fmime;
271    }elseif($fext && $fext != $iext){
272        // extension was changed, print warning
273        msg(sprintf($lang['mediaextchange'],$fext,$iext));
274    }
275
276    $res = media_save(array('name' => $file['tmp_name'],
277                            'mime' => $imime,
278                            'ext'  => $iext), $ns.':'.$id,
279                      $_REQUEST['ow'], $auth, 'move_uploaded_file');
280    if (is_array($res)) {
281        msg($res[0], $res[1]);
282        return false;
283    }
284    return $res;
285}
286
287/**
288 * This generates an action event and delegates to _media_upload_action().
289 * Action plugins are allowed to pre/postprocess the uploaded file.
290 * (The triggered event is preventable.)
291 *
292 * Event data:
293 * $data[0]     fn_tmp: the temporary file name (read from $_FILES)
294 * $data[1]     fn: the file name of the uploaded file
295 * $data[2]     id: the future directory id of the uploaded file
296 * $data[3]     imime: the mimetype of the uploaded file
297 * $data[4]     overwrite: if an existing file is going to be overwritten
298 *
299 * @triggers MEDIA_UPLOAD_FINISH
300 */
301function media_save($file, $id, $ow, $auth, $move) {
302    if($auth < AUTH_UPLOAD) {
303        return array("You don't have permissions to upload files.", -1);
304    }
305
306    if (!isset($file['mime']) || !isset($file['ext'])) {
307        list($ext, $mime) = mimetype($id);
308        if (!isset($file['mime'])) {
309            $file['mime'] = $mime;
310        }
311        if (!isset($file['ext'])) {
312            $file['ext'] = $ext;
313        }
314    }
315
316    global $lang;
317
318    // get filename
319    $id   = cleanID($id,false,true);
320    $fn   = mediaFN($id);
321
322    // get filetype regexp
323    $types = array_keys(getMimeTypes());
324    $types = array_map(create_function('$q','return preg_quote($q,"/");'),$types);
325    $regex = join('|',$types);
326
327    // because a temp file was created already
328    if(!preg_match('/\.('.$regex.')$/i',$fn)) {
329        return array($lang['uploadwrong'],-1);
330    }
331
332    //check for overwrite
333    $overwrite = @file_exists($fn);
334    if($overwrite && (!$ow || $auth < AUTH_DELETE)) {
335        return array($lang['uploadexist'], 0);
336    }
337    // check for valid content
338    $ok = media_contentcheck($file['name'], $file['mime']);
339    if($ok == -1){
340        return array(sprintf($lang['uploadbadcontent'],'.' . $file['ext']),-1);
341    }elseif($ok == -2){
342        return array($lang['uploadspam'],-1);
343    }elseif($ok == -3){
344        return array($lang['uploadxss'],-1);
345    }
346
347    // prepare event data
348    $data[0] = $file['name'];
349    $data[1] = $fn;
350    $data[2] = $id;
351    $data[3] = $file['mime'];
352    $data[4] = $overwrite;
353    $data[5] = $move;
354
355    // trigger event
356    return trigger_event('MEDIA_UPLOAD_FINISH', $data, '_media_upload_action', true);
357}
358
359/**
360 * Callback adapter for media_upload_finish()
361 * @author Michael Klier <chi@chimeric.de>
362 */
363function _media_upload_action($data) {
364    // fixme do further sanity tests of given data?
365    if(is_array($data) && count($data)===6) {
366        return media_upload_finish($data[0], $data[1], $data[2], $data[3], $data[4], $data[5]);
367    } else {
368        return false; //callback error
369    }
370}
371
372/**
373 * Saves an uploaded media file
374 *
375 * @author Andreas Gohr <andi@splitbrain.org>
376 * @author Michael Klier <chi@chimeric.de>
377 * @author Kate Arzamastseva <pshns@ukr.net>
378 */
379function media_upload_finish($fn_tmp, $fn, $id, $imime, $overwrite, $move = 'move_uploaded_file') {
380    global $conf;
381    global $lang;
382    global $REV;
383
384    $old = @filemtime($fn);
385    if(!@file_exists(mediaFN($id, $old)) && @file_exists($fn)) {
386        // add old revision to the attic if missing
387        media_saveOldRevision($id);
388    }
389
390    // prepare directory
391    io_createNamespace($id, 'media');
392
393    if($move($fn_tmp, $fn)) {
394        @clearstatcache(true,$fn);
395        $new = @filemtime($fn);
396        // Set the correct permission here.
397        // Always chmod media because they may be saved with different permissions than expected from the php umask.
398        // (Should normally chmod to $conf['fperm'] only if $conf['fperm'] is set.)
399        chmod($fn, $conf['fmode']);
400        msg($lang['uploadsucc'],1);
401        media_notify($id,$fn,$imime);
402        // add a log entry to the media changelog
403        if ($REV){
404            addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_REVERT, $lang['restored'], $REV);
405        } elseif ($overwrite) {
406            addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT);
407        } else {
408            addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created']);
409        }
410        return $id;
411    }else{
412        return array($lang['uploadfail'],-1);
413    }
414}
415
416/**
417 * Moves the current version of media file to the media_attic
418 * directory
419 *
420 * @author Kate Arzamastseva <pshns@ukr.net>
421 * @param string $id
422 * @return int - revision date
423 */
424function media_saveOldRevision($id){
425    global $conf;
426    $oldf = mediaFN($id);
427    if(!@file_exists($oldf)) return '';
428    $date = filemtime($oldf);
429    $newf = mediaFN($id,$date);
430    io_makeFileDir($newf);
431    if(copy($oldf, $newf)) {
432        // Set the correct permission here.
433        // Always chmod media because they may be saved with different permissions than expected from the php umask.
434        // (Should normally chmod to $conf['fperm'] only if $conf['fperm'] is set.)
435        chmod($newf, $conf['fmode']);
436    }
437    return $date;
438}
439
440/**
441 * This function checks if the uploaded content is really what the
442 * mimetype says it is. We also do spam checking for text types here.
443 *
444 * We need to do this stuff because we can not rely on the browser
445 * to do this check correctly. Yes, IE is broken as usual.
446 *
447 * @author Andreas Gohr <andi@splitbrain.org>
448 * @link   http://www.splitbrain.org/blog/2007-02/12-internet_explorer_facilitates_cross_site_scripting
449 * @fixme  check all 26 magic IE filetypes here?
450 */
451function media_contentcheck($file,$mime){
452    global $conf;
453    if($conf['iexssprotect']){
454        $fh = @fopen($file, 'rb');
455        if($fh){
456            $bytes = fread($fh, 256);
457            fclose($fh);
458            if(preg_match('/<(script|a|img|html|body|iframe)[\s>]/i',$bytes)){
459                return -3;
460            }
461        }
462    }
463    if(substr($mime,0,6) == 'image/'){
464        $info = @getimagesize($file);
465        if($mime == 'image/gif' && $info[2] != 1){
466            return -1;
467        }elseif($mime == 'image/jpeg' && $info[2] != 2){
468            return -1;
469        }elseif($mime == 'image/png' && $info[2] != 3){
470            return -1;
471        }
472        # fixme maybe check other images types as well
473    }elseif(substr($mime,0,5) == 'text/'){
474        global $TEXT;
475        $TEXT = io_readFile($file);
476        if(checkwordblock()){
477            return -2;
478        }
479    }
480    return 0;
481}
482
483/**
484 * Send a notify mail on uploads
485 *
486 * @author Andreas Gohr <andi@splitbrain.org>
487 */
488function media_notify($id,$file,$mime){
489    global $lang;
490    global $conf;
491    global $INFO;
492    if(empty($conf['notify'])) return; //notify enabled?
493
494    $ip = clientIP();
495
496    $text = rawLocale('uploadmail');
497    $text = str_replace('@DATE@',dformat(),$text);
498    $text = str_replace('@BROWSER@',$_SERVER['HTTP_USER_AGENT'],$text);
499    $text = str_replace('@IPADDRESS@',$ip,$text);
500    $text = str_replace('@HOSTNAME@',gethostsbyaddrs($ip),$text);
501    $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
502    $text = str_replace('@USER@',$_SERVER['REMOTE_USER'],$text);
503    $text = str_replace('@MIME@',$mime,$text);
504    $text = str_replace('@MEDIA@',ml($id,'',true,'&',true),$text);
505    $text = str_replace('@SIZE@',filesize_h(filesize($file)),$text);
506
507    if(empty($conf['mailprefix'])) {
508        $subject = '['.$conf['title'].'] '.$lang['mail_upload'].' '.$id;
509    } else {
510        $subject = '['.$conf['mailprefix'].'] '.$lang['mail_upload'].' '.$id;
511    }
512
513    mail_send($conf['notify'],$subject,$text,$conf['mailfrom']);
514}
515
516/**
517 * List all files in a given Media namespace
518 */
519function media_filelist($ns,$auth=null,$jump='',$fullscreenview=false){
520    global $conf;
521    global $lang;
522    $ns = cleanID($ns);
523
524    // check auth our self if not given (needed for ajax calls)
525    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
526
527    if (!$fullscreenview) echo '<h1 id="media__ns">:'.hsc($ns).'</h1>'.NL;
528
529    if($auth < AUTH_READ){
530        // FIXME: print permission warning here instead?
531        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
532    }else{
533        if (!$fullscreenview) media_uploadform($ns, $auth);
534
535        $dir = utf8_encodeFN(str_replace(':','/',$ns));
536        $data = array();
537        search($data,$conf['mediadir'],'search_media',
538                array('showmsg'=>true,'depth'=>1),$dir);
539
540        if(!count($data)){
541            echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
542        }else foreach($data as $item){
543            if (!$fullscreenview) media_printfile($item,$auth,$jump);
544            else media_printfile_thumbs($item,$auth,$jump);
545        }
546    }
547    if (!$fullscreenview) media_searchform($ns);
548}
549
550/**
551 * Prints tabs for files list actions
552 *
553 * @author Kate Arzamastseva <pshns@ukr.net>
554 * @param string $selected - opened tab
555 */
556function media_tabs_files($selected=false){
557    global $lang;
558
559    echo '<div class="mediamanager-tabs" id="mediamanager__tabs_files">';
560
561    media_tab(media_managerURL(array('tab_files' => 'files')), 'files', $lang['mediaselect'], $selected);
562    media_tab(media_managerURL(array('tab_files' => 'upload')), 'upload', $lang['media_uploadtab'], $selected);
563    media_tab(media_managerURL(array('tab_files' => 'search')), 'search', $lang['media_searchtab'], $selected);
564
565    echo '<div class="clearer"></div>';
566    echo '</div>';
567}
568
569/**
570 * Prints mediamanager tab
571 *
572 * @author Kate Arzamastseva <pshns@ukr.net>
573 * @param string $link
574 * @param string $class
575 * @param string $name
576 * @param string $selected
577 */
578function media_tab($link, $class, $name, $selected=false) {
579    if (!empty($selected) && $selected == $class) $class .= ' selected';
580    $tab = '<a href="'.$link.'" class="'.$class.'" >'.$name.'</a>';
581    echo $tab;
582}
583
584/**
585 * Prints tabs for files details actions
586 *
587 * @author Kate Arzamastseva <pshns@ukr.net>
588 * @param string $selected - opened tab
589 */
590function media_tabs_details($image, $selected=false){
591    global $lang;
592
593    echo '<div class="mediamanager-tabs" id="mediamanager__tabs_details">';
594
595    media_tab(media_managerURL(array('tab_details' => 'view')), 'view', $lang['media_viewtab'], $selected);
596
597    list($ext, $mime) = mimetype($image);
598    if ($mime == 'image/jpeg') {
599        media_tab(media_managerURL(array('tab_details' => 'edit')), 'edit', $lang['media_edittab'], $selected);
600    }
601    media_tab(media_managerURL(array('tab_details' => 'history')), 'history', $lang['media_historytab'], $selected);
602
603    echo '<div class="clearer"></div>';
604    echo '</div>';
605}
606
607/**
608 * Prints options for the tab that displays a list of all files
609 *
610 * @author Kate Arzamastseva <pshns@ukr.net>
611 */
612function media_tab_files_options($ns){
613    global $lang;
614
615    echo '<div class="background-container">';
616    echo $ns;
617    echo '<div id="mediamanager__tabs_list" style="display: inline;">';
618    echo '<a href="'.media_managerURL(array('view' => 'thumbs')).'"
619        rel=".mediamanager-files-thumbnails-tab" class="mediamanager-link-thumbnails">'.
620        $lang['media_thumbsview'].'</a>';
621    echo '<a href="'.media_managerURL(array('view' => 'list')).'"
622        rel=".mediamanager-files-list-tab" class="mediamanager-link-list"
623        title="View as list">'.$lang['media_listview'].'</a>';
624
625    echo '</div>';
626    echo '<div class="mediamanager-block-sort">'.$lang['media_sort'];
627    //select
628    echo '</div>';
629    echo '<div class="clearer"></div>';
630    echo '</div>';
631}
632
633/**
634 * Prints tab that displays a list of all files
635 *
636 * @author Kate Arzamastseva <pshns@ukr.net>
637 */
638function media_tab_files($ns,$auth=null,$jump='') {
639    global $lang;
640    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
641
642    media_tab_files_options($ns);
643
644    echo '<div class="scroll-container" >';
645    $view = $_REQUEST['view'];
646    if($auth < AUTH_READ){
647        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
648    }else{
649        if ($view == 'list') {
650            echo '<ul class="mediamanager-file-list mediamanager-list" id="mediamanager__file_list">';
651        } else {
652            echo '<ul class="mediamanager-file-list mediamanager-thumbs" id="mediamanager__file_list">';
653        }
654        media_filelist($ns,$auth,$jump,true);
655        echo '</ul>';
656    }
657    echo '</div>';
658}
659
660/**
661 * Prints tab that displays uploading form
662 *
663 * @author Kate Arzamastseva <pshns@ukr.net>
664 */
665function media_tab_upload($ns,$auth=null,$jump='') {
666    global $lang;
667    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
668
669    echo '<div class="background-container">';
670    echo sprintf($lang['media_upload'], $ns);
671    echo '</div>';
672
673    echo '<div class="scroll-container">';
674    if ($auth >= AUTH_UPLOAD) echo '<div class="upload">' . $lang['mediaupload'] . '</div>';
675    media_uploadform($ns, $auth, true);
676    echo '</div>';
677}
678
679/**
680 * Prints tab that displays search form
681 *
682 * @author Kate Arzamastseva <pshns@ukr.net>
683 */
684function media_tab_search($ns,$auth=null) {
685    global $lang;
686
687    $do = $_REQUEST['mediado'];
688    $query = $_REQUEST['q'];
689    if (!$query) $query = '';
690
691    echo '<div class="background-container">';
692    echo sprintf($lang['media_search'], $ns);
693    echo'</div>';
694
695    echo '<div class="scroll-container">';
696    media_searchform($ns, $query, true);
697
698    if($do == 'searchlist'){
699        $view = $_REQUEST['view'];
700        if ($view == 'list') {
701            echo '<ul class="mediamanager-file-list mediamanager-list" id="mediamanager__file_list">';
702        } else {
703            echo '<ul class="mediamanager-file-list mediamanager-thumbs" id="mediamanager__file_list">';
704        }
705        media_searchlist($query,$ns,$auth,true);
706        echo '</ul>';
707    }
708    echo '</div>';
709}
710
711/**
712 * Prints tab that displays mediafile details
713 *
714 * @author Kate Arzamastseva <pshns@ukr.net>
715 */
716function media_tab_view($image, $ns, $auth=null, $rev=false) {
717    global $lang, $conf;
718    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
719
720    echo '<div class="background-container">';
721    echo $image;
722    echo '</div>';
723
724    echo '<div class="scroll-container">';
725    $meta = new JpegMeta(mediaFN($image, $rev));
726    media_preview($image, $auth, $rev, $meta);
727    media_details($image, $auth, $rev, $meta);
728    echo '</div>';
729}
730
731/**
732 * Prints tab that displays form for editing mediafile metadata
733 *
734 * @author Kate Arzamastseva <pshns@ukr.net>
735 */
736function media_tab_edit($image, $ns, $auth=null) {
737    global $lang;
738    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
739
740    echo '<div class="background-container">';
741    echo $lang['media_edit'];
742    echo '</div>';
743
744    echo '<div class="scroll-container">';
745    if ($image) {
746        list($ext, $mime) = mimetype($image);
747        if ($mime == 'image/jpeg') media_metaform($image,$auth,true);
748    }
749    echo '</div>';
750}
751
752/**
753 * Prints tab that displays mediafile revisions
754 *
755 * @author Kate Arzamastseva <pshns@ukr.net>
756 */
757function media_tab_history($image, $ns, $auth=null) {
758    global $lang;
759    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
760    $do = $_REQUEST['mediado'];
761
762    echo '<div class="background-container">';
763    echo $lang['media_history'];
764    echo '</div>';
765
766    echo '<div class="scroll-container">';
767    if ($auth >= AUTH_READ && $image) {
768        if ($do == 'diff'){
769            media_diff($image, $ns, $auth);
770        } else {
771            $first = isset($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
772            html_revisions($first, $image);
773        }
774    } else {
775        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
776    }
777    echo '</div>';
778}
779
780/**
781 * Prints mediafile details
782 *
783 * @author Kate Arzamastseva <pshns@ukr.net>
784 */
785function media_preview($image, $auth, $rev=false, $meta=false) {
786    global $lang;
787    if (!$image) return '';
788    if ($auth < AUTH_READ) {
789        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
790        return '';
791    }
792    $info = getimagesize(mediaFN($image, $rev));
793    $w = (int) $info[0];
794    $h = (int) $info[1];
795
796    $more = '';
797    if ($rev) {
798        $more = "rev=$rev";
799    } else {
800        $t = @filemtime(mediaFN($image));
801        $more = "t=$t";
802    }
803    $link = ml($image,$more,true,'&');
804
805    $size = 500;
806    if($meta && ($w > $size || $h > $size)){
807        $ratio = $meta->getResizeRatio($size, $size);
808        $w = floor($w * $ratio);
809        $h = floor($h * $ratio);
810        $more .= "&h=$h&w=$w";
811    }
812
813    $src = ml($image, $more);
814    echo '<div class="mediamanager-preview">';
815    echo '<img src="'.$src.'" alt="" width="99%" style="max-width: '.$w.'px;" /><br /><br />';
816
817    $form = new Doku_Form(array('action'=>$link, 'target'=>'_blank'));
818    $form->addElement(form_makeButton('submit','',$lang['mediaview']));
819    $form->printForm();
820
821    // delete button
822    if($auth >= AUTH_DELETE && !$rev){
823        $form = new Doku_Form(array('id' => 'mediamanager__btn_delete',
824            'action'=>media_managerURL(array('delete' => $image), '&')));
825        $form->addElement(form_makeButton('submit','',$lang['btn_delete']));
826        $form->printForm();
827
828        $form = new Doku_Form(array('id' => 'mediamanager__btn_update',
829            'action'=>media_managerURL(array('image' => $image, 'mediado' => 'update'), '&')));
830        $form->addElement(form_makeButton('submit','',$lang['media_update']));
831        $form->printForm();
832    }
833    if($auth >= AUTH_DELETE && $rev){
834        $form = new Doku_Form(array('id' => 'mediamanager__btn_restore',
835            'action'=>media_managerURL(array('image' => $image), '&')));
836        $form->addHidden('mediado','restore');
837        $form->addHidden('rev',$rev);
838        $form->addElement(form_makeButton('submit','',$lang['media_restore']));
839        $form->printForm();
840    }
841    echo '</div>';
842}
843
844/**
845 * Prints mediafile tags
846 *
847 * @author Kate Arzamastseva <pshns@ukr.net>
848 */
849function media_details($image, $auth, $rev=false, $meta=false) {
850    global $lang, $config_cascade;;
851
852    if (!$image) return '';
853    if ($auth < AUTH_READ) {
854        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
855        return '';
856    }
857
858    // load the field descriptions
859    static $fields = null;
860    if(is_null($fields)){
861        $config_files = getConfigFiles('mediameta');
862        foreach ($config_files as $config_file) {
863            if(@file_exists($config_file)) include($config_file);
864        }
865    }
866
867    if (!$meta) $meta = new JpegMeta(mediaFN($image, $rev));
868
869    echo '<dl class="img_tags">';
870    foreach($fields as $key => $tag){
871        $t = array();
872        if (!empty($tag[0])) $t = array($tag[0]);
873        if(is_array($tag[3])) $t = array_merge($t,$tag[3]);
874        $value = media_getTag($t, $meta, '-');
875        $value = cleanText($value);
876        echo '<dt>'.$lang[$tag[1]].':</dt><dd>';
877        if ($tag[2] == 'date') echo dformat($value);
878        else echo hsc($value);
879        echo '</dd>';
880    }
881    echo '</dl>';
882}
883
884/**
885 * Returns the requested EXIF/IPTC tag from the image meta
886 *
887 * @author Kate Arzamastseva <pshns@ukr.net>
888 * @param array $tags
889 * @param JpegMeta $meta
890 * @param string $alt
891 * @return string
892 */
893function media_getTag($tags,$meta,$alt=''){
894    if($meta === false) return $alt;
895    $info = $meta->getField($tags);
896    if($info == false) return $alt;
897    return $info;
898}
899
900/**
901 * Shows difference between two revisions of file
902 *
903 * @author Kate Arzamastseva <pshns@ukr.net>
904 */
905function media_diff($image, $ns, $auth) {
906    global $lang;
907    global $conf;
908
909    $rev1 = (int) $_REQUEST['rev'];
910
911    if(is_array($_REQUEST['rev2'])){
912        $rev1 = (int) $_REQUEST['rev2'][0];
913        $rev2 = (int) $_REQUEST['rev2'][1];
914
915        if(!$rev1){
916            $rev1 = $rev2;
917            unset($rev2);
918        }
919    }else{
920        $rev2 = (int) $_REQUEST['rev2'];
921    }
922    if($rev1 && $rev2){            // two specific revisions wanted
923        // make sure order is correct (older on the left)
924        if($rev1 < $rev2){
925            $l_rev = $rev1;
926            $r_rev = $rev2;
927        }else{
928            $l_rev = $rev2;
929            $r_rev = $rev1;
930        }
931    }elseif($rev1){                // single revision given, compare to current
932        $r_rev = '';
933        $l_rev = $rev1;
934    }else{                        // no revision was given, compare previous to current
935        $r_rev = '';
936        $revs = getRevisions($image, 0, 1, 8192, true);
937        $l_rev = $revs[0];
938    }
939
940    $l_meta = new JpegMeta(mediaFN($image, $l_rev));
941    $r_meta = new JpegMeta(mediaFN($image, $r_rev));
942
943    echo '<ul class="mediamanager-table-50"><li><div>';
944    media_preview($image, $auth, $l_rev, $l_meta);
945    echo '</div></li>';
946    echo '<li><div>';
947    media_preview($image, $auth, $r_rev, $r_meta);
948    echo '</div></li><li><div>';
949    media_details($image, $auth, $l_rev, $l_meta);
950    echo '</div></li>';
951    echo '<li><div>';
952    media_details($image, $auth, $r_rev, $r_meta);
953    echo '</div></li></ul>';
954}
955
956/**
957 * Restores an old revision of a media file
958 *
959 * @param string $image
960 * @param int $rev
961 * @param int $auth
962 * @return string - file's id
963 * @author Kate Arzamastseva <pshns@ukr.net>
964 */
965function media_restore($image, $rev, $auth){
966    if ($auth < AUTH_DELETE) return false;
967    if (!$image || !file_exists(mediaFN($image))) return false;
968    if (!$rev || !file_exists(mediaFN($image, $rev))) return false;
969    list($iext,$imime,$dl) = mimetype($image);
970    $res = media_upload_finish(mediaFN($image, $rev),
971        mediaFN($image),
972        $image,
973        $imime,
974        true,
975        'copy');
976    if (is_array($res)) {
977        msg($res[0], $res[1]);
978        return false;
979    }
980    return $res;
981}
982
983/**
984 * List all files found by the search request
985 *
986 * @author Tobias Sarnowski <sarnowski@cosmocode.de>
987 * @author Andreas Gohr <gohr@cosmocode.de>
988 * @author Kate Arzamastseva <pshns@ukr.net>
989 * @triggers MEDIA_SEARCH
990 */
991function media_searchlist($query,$ns,$auth=null,$fullscreen=false){
992    global $conf;
993    global $lang;
994
995    $ns = cleanID($ns);
996
997    if ($query) {
998        $evdata = array(
999                'ns'    => $ns,
1000                'data'  => array(),
1001                'query' => $query
1002                );
1003        $evt = new Doku_Event('MEDIA_SEARCH', $evdata);
1004        if ($evt->advise_before()) {
1005            $dir = utf8_encodeFN(str_replace(':','/',$evdata['ns']));
1006            $pattern = '/'.preg_quote($evdata['query'],'/').'/i';
1007            search($evdata['data'],
1008                    $conf['mediadir'],
1009                    'search_media',
1010                    array('showmsg'=>false,'pattern'=>$pattern),
1011                    $dir);
1012        }
1013        $evt->advise_after();
1014        unset($evt);
1015    }
1016
1017    if (!$fullscreen) {
1018        echo '<h1 id="media__ns">'.sprintf($lang['searchmedia_in'],hsc($ns).':*').'</h1>'.NL;
1019        media_searchform($ns,$query);
1020    }
1021
1022    if(!count($evdata['data'])){
1023        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
1024    }else foreach($evdata['data'] as $item){
1025        if (!$fullscreen) media_printfile($item,$item['perm'],'',true);
1026        else media_printfile_thumbs($item,$item['perm']);
1027    }
1028}
1029
1030/**
1031 * Print action links for a file depending on filetype
1032 * and available permissions
1033 */
1034function media_fileactions($item,$auth){
1035    global $lang;
1036
1037    // view button
1038    $link = ml($item['id'],'',true);
1039    echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_BASE.'lib/images/magnifier.png" '.
1040        'alt="'.$lang['mediaview'].'" title="'.$lang['mediaview'].'" class="btn" /></a>';
1041
1042    // no further actions if not writable
1043    if(!$item['writable']) return;
1044
1045    // delete button
1046    if($auth >= AUTH_DELETE){
1047        $link = DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']).
1048            '&amp;sectok='.getSecurityToken();
1049        echo ' <a href="'.$link.'" class="btn_media_delete" title="'.$item['id'].'">'.
1050            '<img src="'.DOKU_BASE.'lib/images/trash.png" alt="'.$lang['btn_delete'].'" '.
1051            'title="'.$lang['btn_delete'].'" class="btn" /></a>';
1052    }
1053
1054    // edit button
1055    if($auth >= AUTH_UPLOAD && $item['isimg'] && $item['meta']->getField('File.Mime') == 'image/jpeg'){
1056        $link = DOKU_BASE.'lib/exe/mediamanager.php?edit='.rawurlencode($item['id']);
1057        echo ' <a href="'.$link.'">'.
1058            '<img src="'.DOKU_BASE.'lib/images/pencil.png" alt="'.$lang['metaedit'].'" '.
1059            'title="'.$lang['metaedit'].'" class="btn" /></a>';
1060    }
1061
1062}
1063
1064/**
1065 * Formats and prints one file in the list
1066 */
1067function media_printfile($item,$auth,$jump,$display_namespace=false){
1068    global $lang;
1069    global $conf;
1070
1071    // Prepare zebra coloring
1072    // I always wanted to use this variable name :-D
1073    static $twibble = 1;
1074    $twibble *= -1;
1075    $zebra = ($twibble == -1) ? 'odd' : 'even';
1076
1077    // Automatically jump to recent action
1078    if($jump == $item['id']) {
1079        $jump = ' id="scroll__here" ';
1080    }else{
1081        $jump = '';
1082    }
1083
1084    // Prepare fileicons
1085    list($ext,$mime,$dl) = mimetype($item['file'],false);
1086    $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
1087    $class = 'select mediafile mf_'.$class;
1088
1089    // Prepare filename
1090    $file = utf8_decodeFN($item['file']);
1091
1092    // Prepare info
1093    $info = '';
1094    if($item['isimg']){
1095        $info .= (int) $item['meta']->getField('File.Width');
1096        $info .= '&#215;';
1097        $info .= (int) $item['meta']->getField('File.Height');
1098        $info .= ' ';
1099    }
1100    $info .= '<i>'.dformat($item['mtime']).'</i>';
1101    $info .= ' ';
1102    $info .= filesize_h($item['size']);
1103
1104    // output
1105    echo '<div class="'.$zebra.'"'.$jump.'>'.NL;
1106    if (!$display_namespace) {
1107        echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($file).'</a> ';
1108    } else {
1109        echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($item['id']).'</a><br/>';
1110    }
1111    echo '<span class="info">('.$info.')</span>'.NL;
1112    media_fileactions($item,$auth);
1113    echo '<div class="example" id="ex_'.str_replace(':','_',$item['id']).'">';
1114    echo $lang['mediausage'].' <code>{{:'.$item['id'].'}}</code>';
1115    echo '</div>';
1116    if($item['isimg']) media_printimgdetail($item);
1117    echo '<div class="clearer"></div>'.NL;
1118    echo '</div>'.NL;
1119}
1120
1121/**
1122 * Formats and prints one file in the list in the thumbnails view
1123 *
1124 * @author Kate Arzamastseva <pshns@ukr.net>
1125 */
1126function media_printfile_thumbs($item,$auth,$jump=false){
1127    global $lang;
1128    global $conf;
1129
1130    // Prepare filename
1131    $file = utf8_decodeFN($item['file']);
1132
1133    // output
1134    echo '<li><div>';
1135    if($item['isimg']) {
1136        media_printimgdetail($item, true);
1137    } else {
1138        echo '<a name="d_:'.$item['id'].'" class="image" title="'.$item['id'].'" href="'.
1139            media_managerURL(array('image' => hsc($item['id']))).'">';
1140        echo '<img src="'.DOKU_BASE.'lib/images/icon-file.png" width="90px" />';
1141        echo '</a>';
1142    }
1143    //echo '<input type=checkbox />';
1144    echo '<a href="'.media_managerURL(array('image' => hsc($item['id']))).'" name=
1145        "h_:'.$item['id'].'" class="name">'.hsc($file).'</a>';
1146    if($item['isimg']){
1147        $size = '';
1148        $size .= (int) $item['meta']->getField('File.Width');
1149        $size .= '&#215;';
1150        $size .= (int) $item['meta']->getField('File.Height');
1151        echo '<span class="size">'.$size.'</span>';
1152    } else {
1153        echo '<span class="size">&nbsp;</span>';
1154    }
1155    $date = dformat($item['mtime']);
1156    echo '<span class="date">'.$date.'</span>';
1157    $filesize = filesize_h($item['size']);
1158    echo '<span class="filesize">'.$filesize.'</span>';
1159    echo '<div class="clearer"></div>';
1160    echo '</div></li>'.NL;
1161}
1162
1163/**
1164 * Prints a thumbnail and metainfos
1165 */
1166function media_printimgdetail($item, $fullscreen=false){
1167    // prepare thumbnail
1168    if (!$fullscreen) $size = 120;
1169    else $size = 90;
1170    $w = (int) $item['meta']->getField('File.Width');
1171    $h = (int) $item['meta']->getField('File.Height');
1172    if($w>$size || $h>$size){
1173        if (!$fullscreen) {
1174            $ratio = $item['meta']->getResizeRatio($size);
1175        } else {
1176            $ratio = $item['meta']->getResizeRatio($size,$size);
1177        }
1178        $w = floor($w * $ratio);
1179        $h = floor($h * $ratio);
1180    }
1181    $src = ml($item['id'],array('w'=>$w,'h'=>$h,'t'=>$item['mtime']));
1182    $p = array();
1183    $p['width']  = $w;
1184    if (!$fullscreen) $p['height'] = $h;
1185    $p['alt']    = $item['id'];
1186    $p['class']  = 'thumb';
1187    $att = buildAttributes($p);
1188
1189    // output
1190    if ($fullscreen) {
1191        echo '<a name="d_:'.$item['id'].'" class="image" title="'.$item['id'].'" href="'.
1192            media_managerURL(array('image' => hsc($item['id']))).'">';
1193        echo '<img src="'.$src.'" '.$att.' />';
1194        echo '</a>';
1195        return 1;
1196    }
1197
1198    echo '<div class="detail">';
1199    echo '<div class="thumb">';
1200    echo '<a name="d_:'.$item['id'].'" class="select">';
1201    echo '<img src="'.$src.'" '.$att.' />';
1202    echo '</a>';
1203    echo '</div>';
1204
1205    // read EXIF/IPTC data
1206    $t = $item['meta']->getField(array('IPTC.Headline','xmp.dc:title'));
1207    $d = $item['meta']->getField(array('IPTC.Caption','EXIF.UserComment',
1208                'EXIF.TIFFImageDescription',
1209                'EXIF.TIFFUserComment'));
1210    if(utf8_strlen($d) > 250) $d = utf8_substr($d,0,250).'...';
1211    $k = $item['meta']->getField(array('IPTC.Keywords','IPTC.Category','xmp.dc:subject'));
1212
1213    // print EXIF/IPTC data
1214    if($t || $d || $k ){
1215        echo '<p>';
1216        if($t) echo '<strong>'.htmlspecialchars($t).'</strong><br />';
1217        if($d) echo htmlspecialchars($d).'<br />';
1218        if($t) echo '<em>'.htmlspecialchars($k).'</em>';
1219        echo '</p>';
1220    }
1221    echo '</div>';
1222}
1223
1224/**
1225 * Build link based on the current, adding/rewriting
1226 * parameters
1227 *
1228 * @author Kate Arzamastseva <pshns@ukr.net>
1229 * @param array $params
1230 * @param string $amp - separator
1231 * @return string - link
1232 */
1233function media_managerURL($params=false, $amp='&amp;') {
1234    global $conf;
1235    global $ID;
1236
1237    $gets = array('do' => 'media');
1238    $media_manager_params = array('tab_files', 'tab_details', 'image', 'ns', 'view');
1239    foreach ($media_manager_params as $x) {
1240        if (isset($_REQUEST[$x])) $gets[$x] = $_REQUEST[$x];
1241    }
1242
1243    if ($params) {
1244        foreach ($params as $k => $v) {
1245            $gets[$k] = $v;
1246        }
1247    }
1248    unset($gets['id']);
1249    if ($gets['delete']) {
1250        unset($gets['image']);
1251        unset($gets['tab_details']);
1252    }
1253
1254    return wl($ID,$gets,false,$amp);
1255}
1256
1257/**
1258 * Print the media upload form if permissions are correct
1259 *
1260 * @author Andreas Gohr <andi@splitbrain.org>
1261 * @author Kate Arzamastseva <pshns@ukr.net>
1262 */
1263function media_uploadform($ns, $auth, $fullscreen = false){
1264    global $lang;
1265
1266    if($auth < AUTH_UPLOAD) {
1267        echo '<div class="nothing">'.$lang['media_perm_upload'].'</div>'.NL;
1268        return;
1269    }
1270
1271    $update = false;
1272    $id = '';
1273    if ($auth >= AUTH_DELETE && $fullscreen && $_REQUEST['mediado'] == 'update') {
1274        $update = true;
1275        $id = cleanID($_REQUEST['image']);
1276    }
1277
1278    // The default HTML upload form
1279    $params = array('id'      => 'dw__upload',
1280                    'enctype' => 'multipart/form-data');
1281    if (!$fullscreen) {
1282        $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php';
1283    } else {
1284        $params['action'] = media_managerURL(array('tab_files' => 'files',
1285            'tab_details' => 'view'), '&');
1286    }
1287
1288    $form = new Doku_Form($params);
1289    if (!$fullscreen) $form->addElement('<div class="upload">' . $lang['mediaupload'] . '</div>');
1290    $form->addElement(formSecurityToken());
1291    $form->addHidden('ns', hsc($ns));
1292    $form->addElement(form_makeOpenTag('p'));
1293    $form->addElement(form_makeFileField('upload', $lang['txt_upload'].':', 'upload__file'));
1294    $form->addElement(form_makeCloseTag('p'));
1295    $form->addElement(form_makeOpenTag('p'));
1296    $form->addElement(form_makeTextField('mediaid', noNS($id), $lang['txt_filename'].':', 'upload__name'));
1297    $form->addElement(form_makeButton('submit', '', $lang['btn_upload']));
1298    $form->addElement(form_makeCloseTag('p'));
1299
1300    if($auth >= AUTH_DELETE){
1301        $form->addElement(form_makeOpenTag('p'));
1302        $attrs = array();
1303        if ($update) $attrs['checked'] = 'checked';
1304        $form->addElement(form_makeCheckboxField('ow', 1, $lang['txt_overwrt'], 'dw__ow', 'check', $attrs));
1305        $form->addElement(form_makeCloseTag('p'));
1306    }
1307    html_form('upload', $form);
1308
1309    // prepare flashvars for multiupload
1310    $opt = array(
1311            'L_gridname'  => $lang['mu_gridname'] ,
1312            'L_gridsize'  => $lang['mu_gridsize'] ,
1313            'L_gridstat'  => $lang['mu_gridstat'] ,
1314            'L_namespace' => $lang['mu_namespace'] ,
1315            'L_overwrite' => $lang['txt_overwrt'],
1316            'L_browse'    => $lang['mu_browse'],
1317            'L_upload'    => $lang['btn_upload'],
1318            'L_toobig'    => $lang['mu_toobig'],
1319            'L_ready'     => $lang['mu_ready'],
1320            'L_done'      => $lang['mu_done'],
1321            'L_fail'      => $lang['mu_fail'],
1322            'L_authfail'  => $lang['mu_authfail'],
1323            'L_progress'  => $lang['mu_progress'],
1324            'L_filetypes' => $lang['mu_filetypes'],
1325            'L_info'      => $lang['mu_info'],
1326            'L_lasterr'   => $lang['mu_lasterr'],
1327
1328            'O_ns'        => ":$ns",
1329            'O_backend'   => 'mediamanager.php?'.session_name().'='.session_id(),
1330            'O_maxsize'   => php_to_byte(ini_get('upload_max_filesize')),
1331            'O_extensions'=> join('|',array_keys(getMimeTypes())),
1332            'O_overwrite' => ($auth >= AUTH_DELETE),
1333            'O_sectok'    => getSecurityToken(),
1334            'O_authtok'   => auth_createToken(),
1335            );
1336    $var = buildURLparams($opt);
1337    // output the flash uploader
1338    ?>
1339        <div id="dw__flashupload" style="display:none">
1340        <div class="upload"><?php echo $lang['mu_intro']?></div>
1341        <?php echo html_flashobject('multipleUpload.swf','500','190',null,$opt); ?>
1342        </div>
1343        <?php
1344}
1345
1346/**
1347 * Print the search field form
1348 *
1349 * @author Tobias Sarnowski <sarnowski@cosmocode.de>
1350 * @author Kate Arzamastseva <pshns@ukr.net>
1351 */
1352function media_searchform($ns,$query='',$fullscreen=false){
1353    global $lang;
1354
1355    // The default HTML search form
1356    $params = array('id' => 'dw__mediasearch');
1357    if (!$fullscreen) $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php';
1358    else $params['action'] = media_managerURL(array(), '&');
1359    $form = new Doku_Form($params);
1360    if (!$fullscreen) $form->addElement('<div class="upload">' . $lang['mediasearch'] . '</div>');
1361    $form->addElement(formSecurityToken());
1362    $form->addHidden('ns', $ns);
1363    if (!$fullscreen) $form->addHidden('do', 'searchlist');
1364    else $form->addHidden('mediado', 'searchlist');
1365    $form->addElement(form_makeOpenTag('p'));
1366    $form->addElement(form_makeTextField('q', $query,$lang['searchmedia'],'','',array('title'=>sprintf($lang['searchmedia_in'],hsc($ns).':*'))));
1367    $form->addElement(form_makeButton('submit', '', $lang['btn_search']));
1368    $form->addElement(form_makeCloseTag('p'));
1369    html_form('searchmedia', $form);
1370}
1371
1372/**
1373 * Build a tree outline of available media namespaces
1374 *
1375 * @author Andreas Gohr <andi@splitbrain.org>
1376 */
1377function media_nstree($ns){
1378    global $conf;
1379    global $lang;
1380
1381    // currently selected namespace
1382    $ns  = cleanID($ns);
1383    if(empty($ns)){
1384        global $ID;
1385        $ns = dirname(str_replace(':','/',$ID));
1386        if($ns == '.') $ns ='';
1387    }
1388    $ns  = utf8_encodeFN(str_replace(':','/',$ns));
1389
1390    $data = array();
1391    search($data,$conf['mediadir'],'search_index',array('ns' => $ns, 'nofiles' => true));
1392
1393    // wrap a list with the root level around the other namespaces
1394    $item = array( 'level' => 0, 'id' => '',
1395            'open' =>'true', 'label' => '['.$lang['mediaroot'].']');
1396
1397    echo '<ul class="idx">';
1398    echo media_nstree_li($item);
1399    echo media_nstree_item($item);
1400    echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
1401    echo '</li>';
1402    echo '</ul>';
1403}
1404
1405/**
1406 * Userfunction for html_buildlist
1407 *
1408 * Prints a media namespace tree item
1409 *
1410 * @author Andreas Gohr <andi@splitbrain.org>
1411 */
1412function media_nstree_item($item){
1413    $pos   = strrpos($item['id'], ':');
1414    $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
1415    if(!$item['label']) $item['label'] = $label;
1416
1417    $ret  = '';
1418    if (!($_REQUEST['do'] == 'media'))
1419    $ret .= '<a href="'.DOKU_BASE.'lib/exe/mediamanager.php?ns='.idfilter($item['id']).'" class="idx_dir">';
1420    else $ret .= '<a href="'.media_managerURL(array('ns' => idfilter($item['id']), 'tab_files' => 'files'))
1421        .'" class="idx_dir">';
1422    $ret .= $item['label'];
1423    $ret .= '</a>';
1424    return $ret;
1425}
1426
1427/**
1428 * Userfunction for html_buildlist
1429 *
1430 * Prints a media namespace tree item opener
1431 *
1432 * @author Andreas Gohr <andi@splitbrain.org>
1433 */
1434function media_nstree_li($item){
1435    $class='media level'.$item['level'];
1436    if($item['open']){
1437        $class .= ' open';
1438        $img   = DOKU_BASE.'lib/images/minus.gif';
1439        $alt   = '&minus;';
1440    }else{
1441        $class .= ' closed';
1442        $img   = DOKU_BASE.'lib/images/plus.gif';
1443        $alt   = '+';
1444    }
1445    // TODO: only deliver an image if it actually has a subtree...
1446    return '<li class="'.$class.'">'.
1447        '<img src="'.$img.'" alt="'.$alt.'" />';
1448}
1449
1450/**
1451 * Resizes the given image to the given size
1452 *
1453 * @author  Andreas Gohr <andi@splitbrain.org>
1454 */
1455function media_resize_image($file, $ext, $w, $h=0){
1456    global $conf;
1457
1458    $info = @getimagesize($file); //get original size
1459    if($info == false) return $file; // that's no image - it's a spaceship!
1460
1461    if(!$h) $h = round(($w * $info[1]) / $info[0]);
1462
1463    // we wont scale up to infinity
1464    if($w > 2000 || $h > 2000) return $file;
1465
1466    //cache
1467    $local = getCacheName($file,'.media.'.$w.'x'.$h.'.'.$ext);
1468    $mtime = @filemtime($local); // 0 if not exists
1469
1470    if( $mtime > filemtime($file) ||
1471            media_resize_imageIM($ext,$file,$info[0],$info[1],$local,$w,$h) ||
1472            media_resize_imageGD($ext,$file,$info[0],$info[1],$local,$w,$h) ){
1473        if($conf['fperm']) chmod($local, $conf['fperm']);
1474        return $local;
1475    }
1476    //still here? resizing failed
1477    return $file;
1478}
1479
1480/**
1481 * Crops the given image to the wanted ratio, then calls media_resize_image to scale it
1482 * to the wanted size
1483 *
1484 * Crops are centered horizontally but prefer the upper third of an vertical
1485 * image because most pics are more interesting in that area (rule of thirds)
1486 *
1487 * @author  Andreas Gohr <andi@splitbrain.org>
1488 */
1489function media_crop_image($file, $ext, $w, $h=0){
1490    global $conf;
1491
1492    if(!$h) $h = $w;
1493    $info = @getimagesize($file); //get original size
1494    if($info == false) return $file; // that's no image - it's a spaceship!
1495
1496    // calculate crop size
1497    $fr = $info[0]/$info[1];
1498    $tr = $w/$h;
1499    if($tr >= 1){
1500        if($tr > $fr){
1501            $cw = $info[0];
1502            $ch = (int) $info[0]/$tr;
1503        }else{
1504            $cw = (int) $info[1]*$tr;
1505            $ch = $info[1];
1506        }
1507    }else{
1508        if($tr < $fr){
1509            $cw = (int) $info[1]*$tr;
1510            $ch = $info[1];
1511        }else{
1512            $cw = $info[0];
1513            $ch = (int) $info[0]/$tr;
1514        }
1515    }
1516    // calculate crop offset
1517    $cx = (int) ($info[0]-$cw)/2;
1518    $cy = (int) ($info[1]-$ch)/3;
1519
1520    //cache
1521    $local = getCacheName($file,'.media.'.$cw.'x'.$ch.'.crop.'.$ext);
1522    $mtime = @filemtime($local); // 0 if not exists
1523
1524    if( $mtime > filemtime($file) ||
1525            media_crop_imageIM($ext,$file,$info[0],$info[1],$local,$cw,$ch,$cx,$cy) ||
1526            media_resize_imageGD($ext,$file,$cw,$ch,$local,$cw,$ch,$cx,$cy) ){
1527        if($conf['fperm']) chmod($local, $conf['fperm']);
1528        return media_resize_image($local,$ext, $w, $h);
1529    }
1530
1531    //still here? cropping failed
1532    return media_resize_image($file,$ext, $w, $h);
1533}
1534
1535/**
1536 * Download a remote file and return local filename
1537 *
1538 * returns false if download fails. Uses cached file if available and
1539 * wanted
1540 *
1541 * @author  Andreas Gohr <andi@splitbrain.org>
1542 * @author  Pavel Vitis <Pavel.Vitis@seznam.cz>
1543 */
1544function media_get_from_URL($url,$ext,$cache){
1545    global $conf;
1546
1547    // if no cache or fetchsize just redirect
1548    if ($cache==0)           return false;
1549    if (!$conf['fetchsize']) return false;
1550
1551    $local = getCacheName(strtolower($url),".media.$ext");
1552    $mtime = @filemtime($local); // 0 if not exists
1553
1554    //decide if download needed:
1555    if( ($mtime == 0) ||                           // cache does not exist
1556            ($cache != -1 && $mtime < time()-$cache)   // 'recache' and cache has expired
1557      ){
1558        if(media_image_download($url,$local)){
1559            return $local;
1560        }else{
1561            return false;
1562        }
1563    }
1564
1565    //if cache exists use it else
1566    if($mtime) return $local;
1567
1568    //else return false
1569    return false;
1570}
1571
1572/**
1573 * Download image files
1574 *
1575 * @author Andreas Gohr <andi@splitbrain.org>
1576 */
1577function media_image_download($url,$file){
1578    global $conf;
1579    $http = new DokuHTTPClient();
1580    $http->max_bodysize = $conf['fetchsize'];
1581    $http->timeout = 25; //max. 25 sec
1582    $http->header_regexp = '!\r\nContent-Type: image/(jpe?g|gif|png)!i';
1583
1584    $data = $http->get($url);
1585    if(!$data) return false;
1586
1587    $fileexists = @file_exists($file);
1588    $fp = @fopen($file,"w");
1589    if(!$fp) return false;
1590    fwrite($fp,$data);
1591    fclose($fp);
1592    if(!$fileexists and $conf['fperm']) chmod($file, $conf['fperm']);
1593
1594    // check if it is really an image
1595    $info = @getimagesize($file);
1596    if(!$info){
1597        @unlink($file);
1598        return false;
1599    }
1600
1601    return true;
1602}
1603
1604/**
1605 * resize images using external ImageMagick convert program
1606 *
1607 * @author Pavel Vitis <Pavel.Vitis@seznam.cz>
1608 * @author Andreas Gohr <andi@splitbrain.org>
1609 */
1610function media_resize_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h){
1611    global $conf;
1612
1613    // check if convert is configured
1614    if(!$conf['im_convert']) return false;
1615
1616    // prepare command
1617    $cmd  = $conf['im_convert'];
1618    $cmd .= ' -resize '.$to_w.'x'.$to_h.'!';
1619    if ($ext == 'jpg' || $ext == 'jpeg') {
1620        $cmd .= ' -quality '.$conf['jpg_quality'];
1621    }
1622    $cmd .= " $from $to";
1623
1624    @exec($cmd,$out,$retval);
1625    if ($retval == 0) return true;
1626    return false;
1627}
1628
1629/**
1630 * crop images using external ImageMagick convert program
1631 *
1632 * @author Andreas Gohr <andi@splitbrain.org>
1633 */
1634function media_crop_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x,$ofs_y){
1635    global $conf;
1636
1637    // check if convert is configured
1638    if(!$conf['im_convert']) return false;
1639
1640    // prepare command
1641    $cmd  = $conf['im_convert'];
1642    $cmd .= ' -crop '.$to_w.'x'.$to_h.'+'.$ofs_x.'+'.$ofs_y;
1643    if ($ext == 'jpg' || $ext == 'jpeg') {
1644        $cmd .= ' -quality '.$conf['jpg_quality'];
1645    }
1646    $cmd .= " $from $to";
1647
1648    @exec($cmd,$out,$retval);
1649    if ($retval == 0) return true;
1650    return false;
1651}
1652
1653/**
1654 * resize or crop images using PHP's libGD support
1655 *
1656 * @author Andreas Gohr <andi@splitbrain.org>
1657 * @author Sebastian Wienecke <s_wienecke@web.de>
1658 */
1659function media_resize_imageGD($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x=0,$ofs_y=0){
1660    global $conf;
1661
1662    if($conf['gdlib'] < 1) return false; //no GDlib available or wanted
1663
1664    // check available memory
1665    if(!is_mem_available(($from_w * $from_h * 4) + ($to_w * $to_h * 4))){
1666        return false;
1667    }
1668
1669    // create an image of the given filetype
1670    if ($ext == 'jpg' || $ext == 'jpeg'){
1671        if(!function_exists("imagecreatefromjpeg")) return false;
1672        $image = @imagecreatefromjpeg($from);
1673    }elseif($ext == 'png') {
1674        if(!function_exists("imagecreatefrompng")) return false;
1675        $image = @imagecreatefrompng($from);
1676
1677    }elseif($ext == 'gif') {
1678        if(!function_exists("imagecreatefromgif")) return false;
1679        $image = @imagecreatefromgif($from);
1680    }
1681    if(!$image) return false;
1682
1683    if(($conf['gdlib']>1) && function_exists("imagecreatetruecolor") && $ext != 'gif'){
1684        $newimg = @imagecreatetruecolor ($to_w, $to_h);
1685    }
1686    if(!$newimg) $newimg = @imagecreate($to_w, $to_h);
1687    if(!$newimg){
1688        imagedestroy($image);
1689        return false;
1690    }
1691
1692    //keep png alpha channel if possible
1693    if($ext == 'png' && $conf['gdlib']>1 && function_exists('imagesavealpha')){
1694        imagealphablending($newimg, false);
1695        imagesavealpha($newimg,true);
1696    }
1697
1698    //keep gif transparent color if possible
1699    if($ext == 'gif' && function_exists('imagefill') && function_exists('imagecolorallocate')) {
1700        if(function_exists('imagecolorsforindex') && function_exists('imagecolortransparent')) {
1701            $transcolorindex = @imagecolortransparent($image);
1702            if($transcolorindex >= 0 ) { //transparent color exists
1703                $transcolor = @imagecolorsforindex($image, $transcolorindex);
1704                $transcolorindex = @imagecolorallocate($newimg, $transcolor['red'], $transcolor['green'], $transcolor['blue']);
1705                @imagefill($newimg, 0, 0, $transcolorindex);
1706                @imagecolortransparent($newimg, $transcolorindex);
1707            }else{ //filling with white
1708                $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
1709                @imagefill($newimg, 0, 0, $whitecolorindex);
1710            }
1711        }else{ //filling with white
1712            $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
1713            @imagefill($newimg, 0, 0, $whitecolorindex);
1714        }
1715    }
1716
1717    //try resampling first
1718    if(function_exists("imagecopyresampled")){
1719        if(!@imagecopyresampled($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h)) {
1720            imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
1721        }
1722    }else{
1723        imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
1724    }
1725
1726    $okay = false;
1727    if ($ext == 'jpg' || $ext == 'jpeg'){
1728        if(!function_exists('imagejpeg')){
1729            $okay = false;
1730        }else{
1731            $okay = imagejpeg($newimg, $to, $conf['jpg_quality']);
1732        }
1733    }elseif($ext == 'png') {
1734        if(!function_exists('imagepng')){
1735            $okay = false;
1736        }else{
1737            $okay =  imagepng($newimg, $to);
1738        }
1739    }elseif($ext == 'gif') {
1740        if(!function_exists('imagegif')){
1741            $okay = false;
1742        }else{
1743            $okay = imagegif($newimg, $to);
1744        }
1745    }
1746
1747    // destroy GD image ressources
1748    if($image) imagedestroy($image);
1749    if($newimg) imagedestroy($newimg);
1750
1751    return $okay;
1752}
1753
1754/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
1755