xref: /dokuwiki/inc/media.php (revision 96dedb921014ef9601187c762d3070f46a0005bb) 
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    $tab = '<a href="'.media_managerURL(array('tab_files' => 'files')).'"';
561    if (!empty($selected) && $selected == 'files') $class = 'files selected';
562    else $class = 'files';
563    $tab .= ' class="'.$class.'" >'.$lang['mediaselect'].'</a>';
564    echo $tab;
565
566    $tab = '<a href="'.media_managerURL(array('tab_files' => 'upload')).
567        '" rel=".mediamanager-tab-upload"';
568    if (!empty($selected) && $selected == 'upload') $class = 'upload selected';
569    else $class = 'upload';
570    $tab .= ' class="'.$class.'" >'.$lang['media_uploadtab'].'</a>';
571    echo $tab;
572
573    $tab = '<a href="'.media_managerURL(array('tab_files' => 'search')).
574        '" rel=".mediamanager-tab-search"';
575    if (!empty($selected) && $selected == 'search') $class = 'search selected';
576    else $class = 'search';
577    $tab .= ' class="'.$class.'" >'.$lang['media_searchtab'].'</a>';
578    echo $tab;
579
580    echo '<div class="clearer"></div>';
581    echo '</div>';
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    $tab = '<a href="'.media_managerURL(array('tab_details' => 'view', 'image' => $image)).
595        '" rel=".mediamanager-tab-view"';
596    if (!empty($selected) && $selected == 'view') $class = 'view selected';
597    else $class = 'view';
598    $tab .= ' class="'.$class.'" >'.$lang['media_viewtab'].'</a>';
599    echo $tab;
600
601    $tab = '<a href="'.media_managerURL(array('tab_details' => 'edit', 'image' => $image)).
602        '" rel=".mediamanager-tab-edit"';
603    if (!empty($selected) && $selected == 'edit') $class = 'edit selected';
604    else $class = 'edit';
605    $tab .= ' class="'.$class.'" >'.$lang['media_edittab'].'</a>';
606    echo $tab;
607
608    $tab = '<a href="'.media_managerURL(array('tab_details' => 'history', 'image' => $image)).
609        '" rel=".mediamanager-tab-history"';
610    if (!empty($selected) && $selected == 'history') $class = 'history selected';
611    else $class = 'history';
612    $tab .= ' class="'.$class.'" >'.$lang['media_historytab'].'</a>';
613    echo $tab;
614
615    echo '<div class="clearer"></div>';
616    echo '</div>';
617}
618
619/**
620 * Prints options for the tab that displays a list of all files
621 *
622 * @author Kate Arzamastseva <pshns@ukr.net>
623 */
624function media_tab_files_options(){
625    global $lang;
626
627    echo '<div class="background-container">';
628    echo '<div id="mediamanager__tabs_list" style="display: inline;">';
629    echo '<a href="'.media_managerURL(array('view' => 'thumbs')).'"
630        rel=".mediamanager-files-thumbnails-tab" class="mediamanager-link-thumbnails">'.
631        $lang['media_thumbsview'].'</a>';
632    echo '<a href="'.media_managerURL(array('view' => 'list')).'"
633        rel=".mediamanager-files-list-tab" class="mediamanager-link-list"
634        title="View as list">'.$lang['media_listview'].'</a>';
635
636    echo '</div>';
637    echo '<div class="mediamanager-block-sort">'.$lang['media_sort'];
638    //select
639    echo '</div>';
640    echo '<div class="clearer"></div>';
641    echo '</div>';
642}
643
644/**
645 * Prints tab that displays a list of all files
646 *
647 * @author Kate Arzamastseva <pshns@ukr.net>
648 */
649function media_tab_files($ns,$auth=null,$jump='') {
650    global $lang;
651    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
652
653    media_tab_files_options();
654
655    echo '<div class="scroll-container" >';
656    $view = $_REQUEST['view'];
657    if($auth < AUTH_READ){
658        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
659    }else{
660        if ($view == 'list') {
661            echo '<ul class="mediamanager-file-list mediamanager-list" id="mediamanager__file_list">';
662        } else {
663            echo '<ul class="mediamanager-file-list mediamanager-thumbs" id="mediamanager__file_list">';
664        }
665        media_filelist($ns,$auth,$jump,true);
666        echo '</ul>';
667    }
668    echo '</div>';
669}
670
671/**
672 * Prints tab that displays uploading form
673 *
674 * @author Kate Arzamastseva <pshns@ukr.net>
675 */
676function media_tab_upload($ns,$auth=null,$jump='') {
677    global $lang;
678    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
679
680    echo '<div class="background-container">';
681    echo $lang['mediaupload'];
682    echo '</div>';
683
684    echo '<div class="scroll-container">';
685    media_uploadform($ns, $auth, true);
686    echo '</div>';
687}
688
689/**
690 * Prints tab that displays search form
691 *
692 * @author Kate Arzamastseva <pshns@ukr.net>
693 */
694function media_tab_search($ns,$auth=null) {
695    global $lang;
696
697    $do = $_REQUEST['mediado'];
698    $query = $_REQUEST['q'];
699    if (!$query) $query = '';
700
701    echo '<div class="background-container">';
702    echo sprintf($lang['media_search'], $ns);
703    echo'</div>';
704
705    echo '<div class="scroll-container">';
706    media_searchform($ns, $query, true);
707
708    if($do == 'searchlist'){
709        $view = $_REQUEST['view'];
710        if ($view == 'list') {
711            echo '<ul class="mediamanager-file-list mediamanager-list" id="mediamanager__file_list">';
712        } else {
713            echo '<ul class="mediamanager-file-list mediamanager-thumbs" id="mediamanager__file_list">';
714        }
715        media_searchlist($query,$ns,$auth,true);
716        echo '</ul>';
717    }
718    echo '</div>';
719}
720
721/**
722 * Prints tab that displays mediafile details
723 *
724 * @author Kate Arzamastseva <pshns@ukr.net>
725 */
726function media_tab_view($image, $ns, $auth=null, $rev=false) {
727    global $lang, $conf;
728    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
729
730    echo '<div class="background-container">';
731    echo $image;
732    echo '</div>';
733
734    echo '<div class="scroll-container">';
735    media_preview($image, $auth, $rev);
736    media_details($image, $auth, $rev);
737    echo '</div>';
738}
739
740/**
741 * Prints tab that displays form for editing mediafile metadata
742 *
743 * @author Kate Arzamastseva <pshns@ukr.net>
744 */
745function media_tab_edit($image, $ns, $auth=null) {
746    global $lang;
747    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
748
749    echo '<div class="background-container">';
750    echo $lang['media_edit'];
751    echo '</div>';
752
753    echo '<div class="scroll-container">';
754    if ($image) {
755        list($ext, $mime) = mimetype($image);
756        if ($mime == 'image/jpeg') media_metaform($image,$auth,true);
757    }
758    echo '</div>';
759}
760
761/**
762 * Prints tab that displays mediafile revisions
763 *
764 * @author Kate Arzamastseva <pshns@ukr.net>
765 */
766function media_tab_history($image, $ns, $auth=null) {
767    global $lang;
768    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
769    $do = $_REQUEST['mediado'];
770
771    echo '<div class="background-container">';
772    echo $lang['media_history'];
773    echo '</div>';
774
775    echo '<div class="scroll-container">';
776    if ($auth >= AUTH_READ && $image) {
777        if ($do == 'diff'){
778            media_diff($image, $ns, $auth);
779        } else {
780            $first = isset($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
781            html_revisions($first, $image);
782        }
783    } else {
784        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
785    }
786    echo '</div>';
787}
788
789/**
790 * Prints mediafile details
791 *
792 * @author Kate Arzamastseva <pshns@ukr.net>
793 */
794function media_preview($image, $auth, $rev=false) {
795    global $lang;
796    if (!$image) return '';
797    if ($auth < AUTH_READ) {
798        echo '<div class="nothing">'.$lang['media_perm_read'].'</div>'.NL;
799        return '';
800    }
801    $info = getimagesize(mediaFN($image, $rev));
802    $w = (int) $info[0];
803
804    $more = '';
805    if ($rev) {
806        $more = "rev=$rev";
807    } else {
808        $t = @filemtime(mediaFN($image));
809        $more = "t=$t";
810    }
811    $src = ml($image, $more);
812    echo '<div class="mediamanager-preview">';
813    echo '<img src="'.$src.'" alt="" width="99%" style="max-width: '.$w.'px;" /><br /><br />';
814
815    $link = ml($image,$more,true,'&');
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) {
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    $src = mediaFN($image, $rev);
868    $meta = new JpegMeta($src);
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 = $revs[0];
938    }
939    echo '<ul class="mediamanager-table-50"><li><div>';
940    media_preview($image, $auth, $l_rev);
941    echo '</div></li>';
942    echo '<li><div>';
943    media_preview($image, $auth, $r_rev);
944    echo '</div></li><li><div>';
945    media_details($image, $auth, $l_rev);
946    echo '</div></li>';
947    echo '<li><div>';
948    media_details($image, $auth, $r_rev);
949    echo '</div></li></ul>';
950}
951
952/**
953 * Restores an old revision of a media file
954 *
955 * @param string $image
956 * @param int $rev
957 * @param int $auth
958 * @return string - file's id
959 * @author Kate Arzamastseva <pshns@ukr.net>
960 */
961function media_restore($image, $rev, $auth){
962    if ($auth < AUTH_DELETE) return false;
963    if (!$image || !file_exists(mediaFN($image))) return false;
964    if (!$rev || !file_exists(mediaFN($image, $rev))) return false;
965    list($iext,$imime,$dl) = mimetype($image);
966    $res = media_upload_finish(mediaFN($image, $rev),
967        mediaFN($image),
968        $image,
969        $imime,
970        true,
971        'copy');
972    if (is_array($res)) {
973        msg($res[0], $res[1]);
974        return false;
975    }
976    return $res;
977}
978
979/**
980 * List all files found by the search request
981 *
982 * @author Tobias Sarnowski <sarnowski@cosmocode.de>
983 * @author Andreas Gohr <gohr@cosmocode.de>
984 * @author Kate Arzamastseva <pshns@ukr.net>
985 * @triggers MEDIA_SEARCH
986 */
987function media_searchlist($query,$ns,$auth=null,$fullscreen=false){
988    global $conf;
989    global $lang;
990
991    $ns = cleanID($ns);
992
993    if ($query) {
994        $evdata = array(
995                'ns'    => $ns,
996                'data'  => array(),
997                'query' => $query
998                );
999        $evt = new Doku_Event('MEDIA_SEARCH', $evdata);
1000        if ($evt->advise_before()) {
1001            $dir = utf8_encodeFN(str_replace(':','/',$evdata['ns']));
1002            $pattern = '/'.preg_quote($evdata['query'],'/').'/i';
1003            search($evdata['data'],
1004                    $conf['mediadir'],
1005                    'search_media',
1006                    array('showmsg'=>false,'pattern'=>$pattern),
1007                    $dir);
1008        }
1009        $evt->advise_after();
1010        unset($evt);
1011    }
1012
1013    if (!$fullscreen) {
1014        echo '<h1 id="media__ns">'.sprintf($lang['searchmedia_in'],hsc($ns).':*').'</h1>'.NL;
1015        media_searchform($ns,$query);
1016    }
1017
1018    if(!count($evdata['data'])){
1019        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
1020    }else foreach($evdata['data'] as $item){
1021        if (!$fullscreen) media_printfile($item,$item['perm'],'',true);
1022        else media_printfile_thumbs($item,$item['perm']);
1023    }
1024}
1025
1026/**
1027 * Print action links for a file depending on filetype
1028 * and available permissions
1029 */
1030function media_fileactions($item,$auth){
1031    global $lang;
1032
1033    // view button
1034    $link = ml($item['id'],'',true);
1035    echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_BASE.'lib/images/magnifier.png" '.
1036        'alt="'.$lang['mediaview'].'" title="'.$lang['mediaview'].'" class="btn" /></a>';
1037
1038    // no further actions if not writable
1039    if(!$item['writable']) return;
1040
1041    // delete button
1042    if($auth >= AUTH_DELETE){
1043        $link = DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']).
1044            '&amp;sectok='.getSecurityToken();
1045        echo ' <a href="'.$link.'" class="btn_media_delete" title="'.$item['id'].'">'.
1046            '<img src="'.DOKU_BASE.'lib/images/trash.png" alt="'.$lang['btn_delete'].'" '.
1047            'title="'.$lang['btn_delete'].'" class="btn" /></a>';
1048    }
1049
1050    // edit button
1051    if($auth >= AUTH_UPLOAD && $item['isimg'] && $item['meta']->getField('File.Mime') == 'image/jpeg'){
1052        $link = DOKU_BASE.'lib/exe/mediamanager.php?edit='.rawurlencode($item['id']);
1053        echo ' <a href="'.$link.'">'.
1054            '<img src="'.DOKU_BASE.'lib/images/pencil.png" alt="'.$lang['metaedit'].'" '.
1055            'title="'.$lang['metaedit'].'" class="btn" /></a>';
1056    }
1057
1058}
1059
1060/**
1061 * Formats and prints one file in the list
1062 */
1063function media_printfile($item,$auth,$jump,$display_namespace=false){
1064    global $lang;
1065    global $conf;
1066
1067    // Prepare zebra coloring
1068    // I always wanted to use this variable name :-D
1069    static $twibble = 1;
1070    $twibble *= -1;
1071    $zebra = ($twibble == -1) ? 'odd' : 'even';
1072
1073    // Automatically jump to recent action
1074    if($jump == $item['id']) {
1075        $jump = ' id="scroll__here" ';
1076    }else{
1077        $jump = '';
1078    }
1079
1080    // Prepare fileicons
1081    list($ext,$mime,$dl) = mimetype($item['file'],false);
1082    $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
1083    $class = 'select mediafile mf_'.$class;
1084
1085    // Prepare filename
1086    $file = utf8_decodeFN($item['file']);
1087
1088    // Prepare info
1089    $info = '';
1090    if($item['isimg']){
1091        $info .= (int) $item['meta']->getField('File.Width');
1092        $info .= '&#215;';
1093        $info .= (int) $item['meta']->getField('File.Height');
1094        $info .= ' ';
1095    }
1096    $info .= '<i>'.dformat($item['mtime']).'</i>';
1097    $info .= ' ';
1098    $info .= filesize_h($item['size']);
1099
1100    // output
1101    echo '<div class="'.$zebra.'"'.$jump.'>'.NL;
1102    if (!$display_namespace) {
1103        echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($file).'</a> ';
1104    } else {
1105        echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($item['id']).'</a><br/>';
1106    }
1107    echo '<span class="info">('.$info.')</span>'.NL;
1108    media_fileactions($item,$auth);
1109    echo '<div class="example" id="ex_'.str_replace(':','_',$item['id']).'">';
1110    echo $lang['mediausage'].' <code>{{:'.$item['id'].'}}</code>';
1111    echo '</div>';
1112    if($item['isimg']) media_printimgdetail($item);
1113    echo '<div class="clearer"></div>'.NL;
1114    echo '</div>'.NL;
1115}
1116
1117/**
1118 * Formats and prints one file in the list in the thumbnails view
1119 *
1120 * @author Kate Arzamastseva <pshns@ukr.net>
1121 */
1122function media_printfile_thumbs($item,$auth,$jump=false){
1123    global $lang;
1124    global $conf;
1125
1126    // Prepare filename
1127    $file = utf8_decodeFN($item['file']);
1128
1129    // output
1130    echo '<li><div>';
1131    if($item['isimg']) {
1132        media_printimgdetail($item, true);
1133    } else {
1134        echo '<a name="d_:'.$item['id'].'" class="image" title="'.$item['id'].'" href="'.
1135            media_managerURL(array('image' => hsc($item['id']))).'">';
1136        echo '<img src="'.DOKU_BASE.'lib/images/icon-file.png" width="90px" />';
1137        echo '</a>';
1138    }
1139    //echo '<input type=checkbox />';
1140    echo '<a href="'.media_managerURL(array('image' => hsc($item['id']))).'" name=
1141        "h_:'.$item['id'].'" class="name">'.hsc($file).'</a>';
1142    if($item['isimg']){
1143        $size = '';
1144        $size .= (int) $item['meta']->getField('File.Width');
1145        $size .= '&#215;';
1146        $size .= (int) $item['meta']->getField('File.Height');
1147        echo '<span class="size">'.$size.'</span>';
1148    } else {
1149        echo '<span class="size">&nbsp;</span>';
1150    }
1151    $date = dformat($item['mtime']);
1152    echo '<span class="date">'.$date.'</span>';
1153    $filesize = filesize_h($item['size']);
1154    echo '<span class="filesize">'.$filesize.'</span>';
1155    echo '<div class="clearer"></div>';
1156    echo '</div></li>'.NL;
1157}
1158
1159/**
1160 * Prints a thumbnail and metainfos
1161 */
1162function media_printimgdetail($item, $fullscreen=false){
1163    // prepare thumbnail
1164    if (!$fullscreen) $size = 120;
1165    else $size = 90;
1166    $w = (int) $item['meta']->getField('File.Width');
1167    $h = (int) $item['meta']->getField('File.Height');
1168    if($w>$size || $h>$size){
1169        if (!$fullscreen) {
1170            $ratio = $item['meta']->getResizeRatio($size);
1171        } else {
1172            $ratio = $item['meta']->getResizeRatio($size,$size);
1173        }
1174        $w = floor($w * $ratio);
1175        $h = floor($h * $ratio);
1176    }
1177    $src = ml($item['id'],array('w'=>$w,'h'=>$h,'t'=>$item['mtime']));
1178    $p = array();
1179    $p['width']  = $w;
1180    if (!$fullscreen) $p['height'] = $h;
1181    $p['alt']    = $item['id'];
1182    $p['class']  = 'thumb';
1183    $att = buildAttributes($p);
1184
1185    // output
1186    if ($fullscreen) {
1187        echo '<a name="d_:'.$item['id'].'" class="image" title="'.$item['id'].'" href="'.
1188            media_managerURL(array('image' => hsc($item['id']))).'">';
1189        echo '<img src="'.$src.'" '.$att.' />';
1190        echo '</a>';
1191        return 1;
1192    }
1193
1194    echo '<div class="detail">';
1195    echo '<div class="thumb">';
1196    echo '<a name="d_:'.$item['id'].'" class="select">';
1197    echo '<img src="'.$src.'" '.$att.' />';
1198    echo '</a>';
1199    echo '</div>';
1200
1201    // read EXIF/IPTC data
1202    $t = $item['meta']->getField(array('IPTC.Headline','xmp.dc:title'));
1203    $d = $item['meta']->getField(array('IPTC.Caption','EXIF.UserComment',
1204                'EXIF.TIFFImageDescription',
1205                'EXIF.TIFFUserComment'));
1206    if(utf8_strlen($d) > 250) $d = utf8_substr($d,0,250).'...';
1207    $k = $item['meta']->getField(array('IPTC.Keywords','IPTC.Category','xmp.dc:subject'));
1208
1209    // print EXIF/IPTC data
1210    if($t || $d || $k ){
1211        echo '<p>';
1212        if($t) echo '<strong>'.htmlspecialchars($t).'</strong><br />';
1213        if($d) echo htmlspecialchars($d).'<br />';
1214        if($t) echo '<em>'.htmlspecialchars($k).'</em>';
1215        echo '</p>';
1216    }
1217    echo '</div>';
1218}
1219
1220/**
1221 * Build link based on the current, adding/rewriting
1222 * parameters
1223 *
1224 * @author Kate Arzamastseva <pshns@ukr.net>
1225 * @param array $params
1226 * @param string $amp - separator
1227 * @return string - link
1228 */
1229function media_managerURL($params=false, $amp='&amp;') {
1230    global $conf;
1231    global $ID;
1232
1233    $gets = array('do' => 'media');
1234    $media_manager_params = array('tab_files', 'tab_details', 'image', 'ns', 'view');
1235    foreach ($media_manager_params as $x) {
1236        if (isset($_REQUEST[$x])) $gets[$x] = $_REQUEST[$x];
1237    }
1238
1239    if ($params) {
1240        foreach ($params as $k => $v) {
1241            $gets[$k] = $v;
1242        }
1243    }
1244    unset($gets['id']);
1245    if ($gets['delete']) {
1246        unset($gets['image']);
1247        unset($gets['tab_details']);
1248    }
1249
1250    return wl($ID,$gets,false,$amp);
1251}
1252
1253/**
1254 * Print the media upload form if permissions are correct
1255 *
1256 * @author Andreas Gohr <andi@splitbrain.org>
1257 * @author Kate Arzamastseva <pshns@ukr.net>
1258 */
1259function media_uploadform($ns, $auth, $fullscreen = false){
1260    global $lang;
1261
1262    if($auth < AUTH_UPLOAD) {
1263        echo '<div class="nothing">'.$lang['media_perm_upload'].'</div>'.NL;
1264        return;
1265    }
1266
1267    $update = false;
1268    $id = '';
1269    if ($auth >= AUTH_DELETE && $fullscreen && $_REQUEST['mediado'] == 'update') {
1270        $update = true;
1271        $id = cleanID($_REQUEST['image']);
1272    }
1273
1274    // The default HTML upload form
1275    $params = array('id'      => 'dw__upload',
1276                    'enctype' => 'multipart/form-data');
1277    if (!$fullscreen) {
1278        $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php';
1279    } else {
1280        $params['action'] = media_managerURL(array('tab_files' => 'files',
1281            'tab_details' => 'view'), '&');
1282    }
1283
1284    $form = new Doku_Form($params);
1285    if (!$fullscreen) $form->addElement('<div class="upload">' . $lang['mediaupload'] . '</div>');
1286    $form->addElement(formSecurityToken());
1287    $form->addHidden('ns', hsc($ns));
1288    $form->addElement(form_makeOpenTag('p'));
1289    $form->addElement(form_makeFileField('upload', $lang['txt_upload'].':', 'upload__file'));
1290    $form->addElement(form_makeCloseTag('p'));
1291    $form->addElement(form_makeOpenTag('p'));
1292    $form->addElement(form_makeTextField('mediaid', noNS($id), $lang['txt_filename'].':', 'upload__name'));
1293    $form->addElement(form_makeButton('submit', '', $lang['btn_upload']));
1294    $form->addElement(form_makeCloseTag('p'));
1295
1296    if($auth >= AUTH_DELETE){
1297        $form->addElement(form_makeOpenTag('p'));
1298        $attrs = array();
1299        if ($update) $attrs['checked'] = 'checked';
1300        $form->addElement(form_makeCheckboxField('ow', 1, $lang['txt_overwrt'], 'dw__ow', 'check', $attrs));
1301        $form->addElement(form_makeCloseTag('p'));
1302    }
1303    html_form('upload', $form);
1304
1305    // prepare flashvars for multiupload
1306    $opt = array(
1307            'L_gridname'  => $lang['mu_gridname'] ,
1308            'L_gridsize'  => $lang['mu_gridsize'] ,
1309            'L_gridstat'  => $lang['mu_gridstat'] ,
1310            'L_namespace' => $lang['mu_namespace'] ,
1311            'L_overwrite' => $lang['txt_overwrt'],
1312            'L_browse'    => $lang['mu_browse'],
1313            'L_upload'    => $lang['btn_upload'],
1314            'L_toobig'    => $lang['mu_toobig'],
1315            'L_ready'     => $lang['mu_ready'],
1316            'L_done'      => $lang['mu_done'],
1317            'L_fail'      => $lang['mu_fail'],
1318            'L_authfail'  => $lang['mu_authfail'],
1319            'L_progress'  => $lang['mu_progress'],
1320            'L_filetypes' => $lang['mu_filetypes'],
1321            'L_info'      => $lang['mu_info'],
1322            'L_lasterr'   => $lang['mu_lasterr'],
1323
1324            'O_ns'        => ":$ns",
1325            'O_backend'   => 'mediamanager.php?'.session_name().'='.session_id(),
1326            'O_maxsize'   => php_to_byte(ini_get('upload_max_filesize')),
1327            'O_extensions'=> join('|',array_keys(getMimeTypes())),
1328            'O_overwrite' => ($auth >= AUTH_DELETE),
1329            'O_sectok'    => getSecurityToken(),
1330            'O_authtok'   => auth_createToken(),
1331            );
1332    $var = buildURLparams($opt);
1333    // output the flash uploader
1334    ?>
1335        <div id="dw__flashupload" style="display:none">
1336        <div class="upload"><?php echo $lang['mu_intro']?></div>
1337        <?php echo html_flashobject('multipleUpload.swf','500','190',null,$opt); ?>
1338        </div>
1339        <?php
1340}
1341
1342/**
1343 * Print the search field form
1344 *
1345 * @author Tobias Sarnowski <sarnowski@cosmocode.de>
1346 * @author Kate Arzamastseva <pshns@ukr.net>
1347 */
1348function media_searchform($ns,$query='',$fullscreen=false){
1349    global $lang;
1350
1351    // The default HTML search form
1352    $params = array('id' => 'dw__mediasearch');
1353    if (!$fullscreen) $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php';
1354    else $params['action'] = media_managerURL(array(), '&');
1355    $form = new Doku_Form($params);
1356    if (!$fullscreen) $form->addElement('<div class="upload">' . $lang['mediasearch'] . '</div>');
1357    $form->addElement(formSecurityToken());
1358    $form->addHidden('ns', $ns);
1359    if (!$fullscreen) $form->addHidden('do', 'searchlist');
1360    else $form->addHidden('mediado', 'searchlist');
1361    $form->addElement(form_makeOpenTag('p'));
1362    $form->addElement(form_makeTextField('q', $query,$lang['searchmedia'],'','',array('title'=>sprintf($lang['searchmedia_in'],hsc($ns).':*'))));
1363    $form->addElement(form_makeButton('submit', '', $lang['btn_search']));
1364    $form->addElement(form_makeCloseTag('p'));
1365    html_form('searchmedia', $form);
1366}
1367
1368/**
1369 * Build a tree outline of available media namespaces
1370 *
1371 * @author Andreas Gohr <andi@splitbrain.org>
1372 */
1373function media_nstree($ns){
1374    global $conf;
1375    global $lang;
1376
1377    // currently selected namespace
1378    $ns  = cleanID($ns);
1379    if(empty($ns)){
1380        global $ID;
1381        $ns = dirname(str_replace(':','/',$ID));
1382        if($ns == '.') $ns ='';
1383    }
1384    $ns  = utf8_encodeFN(str_replace(':','/',$ns));
1385
1386    $data = array();
1387    search($data,$conf['mediadir'],'search_index',array('ns' => $ns, 'nofiles' => true));
1388
1389    // wrap a list with the root level around the other namespaces
1390    $item = array( 'level' => 0, 'id' => '',
1391            'open' =>'true', 'label' => '['.$lang['mediaroot'].']');
1392
1393    echo '<ul class="idx">';
1394    echo media_nstree_li($item);
1395    echo media_nstree_item($item);
1396    echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
1397    echo '</li>';
1398    echo '</ul>';
1399}
1400
1401/**
1402 * Userfunction for html_buildlist
1403 *
1404 * Prints a media namespace tree item
1405 *
1406 * @author Andreas Gohr <andi@splitbrain.org>
1407 */
1408function media_nstree_item($item){
1409    $pos   = strrpos($item['id'], ':');
1410    $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
1411    if(!$item['label']) $item['label'] = $label;
1412
1413    $ret  = '';
1414    if (!($_REQUEST['do'] == 'media'))
1415    $ret .= '<a href="'.DOKU_BASE.'lib/exe/mediamanager.php?ns='.idfilter($item['id']).'" class="idx_dir">';
1416    else $ret .= '<a href="'.media_managerURL(array('ns' => idfilter($item['id']), 'tab_files' => 'files'))
1417        .'" class="idx_dir">';
1418    $ret .= $item['label'];
1419    $ret .= '</a>';
1420    return $ret;
1421}
1422
1423/**
1424 * Userfunction for html_buildlist
1425 *
1426 * Prints a media namespace tree item opener
1427 *
1428 * @author Andreas Gohr <andi@splitbrain.org>
1429 */
1430function media_nstree_li($item){
1431    $class='media level'.$item['level'];
1432    if($item['open']){
1433        $class .= ' open';
1434        $img   = DOKU_BASE.'lib/images/minus.gif';
1435        $alt   = '&minus;';
1436    }else{
1437        $class .= ' closed';
1438        $img   = DOKU_BASE.'lib/images/plus.gif';
1439        $alt   = '+';
1440    }
1441    // TODO: only deliver an image if it actually has a subtree...
1442    return '<li class="'.$class.'">'.
1443        '<img src="'.$img.'" alt="'.$alt.'" />';
1444}
1445
1446/**
1447 * Resizes the given image to the given size
1448 *
1449 * @author  Andreas Gohr <andi@splitbrain.org>
1450 */
1451function media_resize_image($file, $ext, $w, $h=0){
1452    global $conf;
1453
1454    $info = @getimagesize($file); //get original size
1455    if($info == false) return $file; // that's no image - it's a spaceship!
1456
1457    if(!$h) $h = round(($w * $info[1]) / $info[0]);
1458
1459    // we wont scale up to infinity
1460    if($w > 2000 || $h > 2000) return $file;
1461
1462    //cache
1463    $local = getCacheName($file,'.media.'.$w.'x'.$h.'.'.$ext);
1464    $mtime = @filemtime($local); // 0 if not exists
1465
1466    if( $mtime > filemtime($file) ||
1467            media_resize_imageIM($ext,$file,$info[0],$info[1],$local,$w,$h) ||
1468            media_resize_imageGD($ext,$file,$info[0],$info[1],$local,$w,$h) ){
1469        if($conf['fperm']) chmod($local, $conf['fperm']);
1470        return $local;
1471    }
1472    //still here? resizing failed
1473    return $file;
1474}
1475
1476/**
1477 * Crops the given image to the wanted ratio, then calls media_resize_image to scale it
1478 * to the wanted size
1479 *
1480 * Crops are centered horizontally but prefer the upper third of an vertical
1481 * image because most pics are more interesting in that area (rule of thirds)
1482 *
1483 * @author  Andreas Gohr <andi@splitbrain.org>
1484 */
1485function media_crop_image($file, $ext, $w, $h=0){
1486    global $conf;
1487
1488    if(!$h) $h = $w;
1489    $info = @getimagesize($file); //get original size
1490    if($info == false) return $file; // that's no image - it's a spaceship!
1491
1492    // calculate crop size
1493    $fr = $info[0]/$info[1];
1494    $tr = $w/$h;
1495    if($tr >= 1){
1496        if($tr > $fr){
1497            $cw = $info[0];
1498            $ch = (int) $info[0]/$tr;
1499        }else{
1500            $cw = (int) $info[1]*$tr;
1501            $ch = $info[1];
1502        }
1503    }else{
1504        if($tr < $fr){
1505            $cw = (int) $info[1]*$tr;
1506            $ch = $info[1];
1507        }else{
1508            $cw = $info[0];
1509            $ch = (int) $info[0]/$tr;
1510        }
1511    }
1512    // calculate crop offset
1513    $cx = (int) ($info[0]-$cw)/2;
1514    $cy = (int) ($info[1]-$ch)/3;
1515
1516    //cache
1517    $local = getCacheName($file,'.media.'.$cw.'x'.$ch.'.crop.'.$ext);
1518    $mtime = @filemtime($local); // 0 if not exists
1519
1520    if( $mtime > filemtime($file) ||
1521            media_crop_imageIM($ext,$file,$info[0],$info[1],$local,$cw,$ch,$cx,$cy) ||
1522            media_resize_imageGD($ext,$file,$cw,$ch,$local,$cw,$ch,$cx,$cy) ){
1523        if($conf['fperm']) chmod($local, $conf['fperm']);
1524        return media_resize_image($local,$ext, $w, $h);
1525    }
1526
1527    //still here? cropping failed
1528    return media_resize_image($file,$ext, $w, $h);
1529}
1530
1531/**
1532 * Download a remote file and return local filename
1533 *
1534 * returns false if download fails. Uses cached file if available and
1535 * wanted
1536 *
1537 * @author  Andreas Gohr <andi@splitbrain.org>
1538 * @author  Pavel Vitis <Pavel.Vitis@seznam.cz>
1539 */
1540function media_get_from_URL($url,$ext,$cache){
1541    global $conf;
1542
1543    // if no cache or fetchsize just redirect
1544    if ($cache==0)           return false;
1545    if (!$conf['fetchsize']) return false;
1546
1547    $local = getCacheName(strtolower($url),".media.$ext");
1548    $mtime = @filemtime($local); // 0 if not exists
1549
1550    //decide if download needed:
1551    if( ($mtime == 0) ||                           // cache does not exist
1552            ($cache != -1 && $mtime < time()-$cache)   // 'recache' and cache has expired
1553      ){
1554        if(media_image_download($url,$local)){
1555            return $local;
1556        }else{
1557            return false;
1558        }
1559    }
1560
1561    //if cache exists use it else
1562    if($mtime) return $local;
1563
1564    //else return false
1565    return false;
1566}
1567
1568/**
1569 * Download image files
1570 *
1571 * @author Andreas Gohr <andi@splitbrain.org>
1572 */
1573function media_image_download($url,$file){
1574    global $conf;
1575    $http = new DokuHTTPClient();
1576    $http->max_bodysize = $conf['fetchsize'];
1577    $http->timeout = 25; //max. 25 sec
1578    $http->header_regexp = '!\r\nContent-Type: image/(jpe?g|gif|png)!i';
1579
1580    $data = $http->get($url);
1581    if(!$data) return false;
1582
1583    $fileexists = @file_exists($file);
1584    $fp = @fopen($file,"w");
1585    if(!$fp) return false;
1586    fwrite($fp,$data);
1587    fclose($fp);
1588    if(!$fileexists and $conf['fperm']) chmod($file, $conf['fperm']);
1589
1590    // check if it is really an image
1591    $info = @getimagesize($file);
1592    if(!$info){
1593        @unlink($file);
1594        return false;
1595    }
1596
1597    return true;
1598}
1599
1600/**
1601 * resize images using external ImageMagick convert program
1602 *
1603 * @author Pavel Vitis <Pavel.Vitis@seznam.cz>
1604 * @author Andreas Gohr <andi@splitbrain.org>
1605 */
1606function media_resize_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h){
1607    global $conf;
1608
1609    // check if convert is configured
1610    if(!$conf['im_convert']) return false;
1611
1612    // prepare command
1613    $cmd  = $conf['im_convert'];
1614    $cmd .= ' -resize '.$to_w.'x'.$to_h.'!';
1615    if ($ext == 'jpg' || $ext == 'jpeg') {
1616        $cmd .= ' -quality '.$conf['jpg_quality'];
1617    }
1618    $cmd .= " $from $to";
1619
1620    @exec($cmd,$out,$retval);
1621    if ($retval == 0) return true;
1622    return false;
1623}
1624
1625/**
1626 * crop images using external ImageMagick convert program
1627 *
1628 * @author Andreas Gohr <andi@splitbrain.org>
1629 */
1630function media_crop_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x,$ofs_y){
1631    global $conf;
1632
1633    // check if convert is configured
1634    if(!$conf['im_convert']) return false;
1635
1636    // prepare command
1637    $cmd  = $conf['im_convert'];
1638    $cmd .= ' -crop '.$to_w.'x'.$to_h.'+'.$ofs_x.'+'.$ofs_y;
1639    if ($ext == 'jpg' || $ext == 'jpeg') {
1640        $cmd .= ' -quality '.$conf['jpg_quality'];
1641    }
1642    $cmd .= " $from $to";
1643
1644    @exec($cmd,$out,$retval);
1645    if ($retval == 0) return true;
1646    return false;
1647}
1648
1649/**
1650 * resize or crop images using PHP's libGD support
1651 *
1652 * @author Andreas Gohr <andi@splitbrain.org>
1653 * @author Sebastian Wienecke <s_wienecke@web.de>
1654 */
1655function media_resize_imageGD($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x=0,$ofs_y=0){
1656    global $conf;
1657
1658    if($conf['gdlib'] < 1) return false; //no GDlib available or wanted
1659
1660    // check available memory
1661    if(!is_mem_available(($from_w * $from_h * 4) + ($to_w * $to_h * 4))){
1662        return false;
1663    }
1664
1665    // create an image of the given filetype
1666    if ($ext == 'jpg' || $ext == 'jpeg'){
1667        if(!function_exists("imagecreatefromjpeg")) return false;
1668        $image = @imagecreatefromjpeg($from);
1669    }elseif($ext == 'png') {
1670        if(!function_exists("imagecreatefrompng")) return false;
1671        $image = @imagecreatefrompng($from);
1672
1673    }elseif($ext == 'gif') {
1674        if(!function_exists("imagecreatefromgif")) return false;
1675        $image = @imagecreatefromgif($from);
1676    }
1677    if(!$image) return false;
1678
1679    if(($conf['gdlib']>1) && function_exists("imagecreatetruecolor") && $ext != 'gif'){
1680        $newimg = @imagecreatetruecolor ($to_w, $to_h);
1681    }
1682    if(!$newimg) $newimg = @imagecreate($to_w, $to_h);
1683    if(!$newimg){
1684        imagedestroy($image);
1685        return false;
1686    }
1687
1688    //keep png alpha channel if possible
1689    if($ext == 'png' && $conf['gdlib']>1 && function_exists('imagesavealpha')){
1690        imagealphablending($newimg, false);
1691        imagesavealpha($newimg,true);
1692    }
1693
1694    //keep gif transparent color if possible
1695    if($ext == 'gif' && function_exists('imagefill') && function_exists('imagecolorallocate')) {
1696        if(function_exists('imagecolorsforindex') && function_exists('imagecolortransparent')) {
1697            $transcolorindex = @imagecolortransparent($image);
1698            if($transcolorindex >= 0 ) { //transparent color exists
1699                $transcolor = @imagecolorsforindex($image, $transcolorindex);
1700                $transcolorindex = @imagecolorallocate($newimg, $transcolor['red'], $transcolor['green'], $transcolor['blue']);
1701                @imagefill($newimg, 0, 0, $transcolorindex);
1702                @imagecolortransparent($newimg, $transcolorindex);
1703            }else{ //filling with white
1704                $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
1705                @imagefill($newimg, 0, 0, $whitecolorindex);
1706            }
1707        }else{ //filling with white
1708            $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
1709            @imagefill($newimg, 0, 0, $whitecolorindex);
1710        }
1711    }
1712
1713    //try resampling first
1714    if(function_exists("imagecopyresampled")){
1715        if(!@imagecopyresampled($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h)) {
1716            imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
1717        }
1718    }else{
1719        imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
1720    }
1721
1722    $okay = false;
1723    if ($ext == 'jpg' || $ext == 'jpeg'){
1724        if(!function_exists('imagejpeg')){
1725            $okay = false;
1726        }else{
1727            $okay = imagejpeg($newimg, $to, $conf['jpg_quality']);
1728        }
1729    }elseif($ext == 'png') {
1730        if(!function_exists('imagepng')){
1731            $okay = false;
1732        }else{
1733            $okay =  imagepng($newimg, $to);
1734        }
1735    }elseif($ext == 'gif') {
1736        if(!function_exists('imagegif')){
1737            $okay = false;
1738        }else{
1739            $okay = imagegif($newimg, $to);
1740        }
1741    }
1742
1743    // destroy GD image ressources
1744    if($image) imagedestroy($image);
1745    if($newimg) imagedestroy($newimg);
1746
1747    return $okay;
1748}
1749
1750/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
1751