source: documentation/trunk/packages/dokuwiki-2011-05-25a/inc/media.php@ 30098

Last change on this file since 30098 was 25027, checked in by jmt12, 12 years ago

Adding the packages directory, and within it a configured version of dokuwiki all ready to run
File size: 34.6 KB
Line 
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 <[email protected]>
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 <[email protected]>
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">'.$lang['ref_hidden'].'</div>';
36 }
37}
38
39/**
40 * Handles the saving of image meta data
41 *
42 * @author Andreas Gohr <[email protected]>
43 */
44function media_metasave($id,$auth,$data){
45 if($auth < AUTH_UPLOAD) return false;
46 if(!checkSecurityToken()) return false;
47 global $lang;
48 global $conf;
49 $src = mediaFN($id);
50
51 $meta = new JpegMeta($src);
52 $meta->_parseAll();
53
54 foreach($data as $key => $val){
55 $val=trim($val);
56 if(empty($val)){
57 $meta->deleteField($key);
58 }else{
59 $meta->setField($key,$val);
60 }
61 }
62
63 if($meta->save()){
64 if($conf['fperm']) chmod($src, $conf['fperm']);
65 msg($lang['metasaveok'],1);
66 return $id;
67 }else{
68 msg($lang['metasaveerr'],-1);
69 return false;
70 }
71}
72
73/**
74 * Display the form to edit image meta data
75 *
76 * @author Andreas Gohr <[email protected]>
77 */
78function media_metaform($id,$auth){
79 if($auth < AUTH_UPLOAD) return false;
80 global $lang, $config_cascade;
81
82 // load the field descriptions
83 static $fields = null;
84 if(is_null($fields)){
85
86 foreach (array('default','local') as $config_group) {
87 if (empty($config_cascade['mediameta'][$config_group])) continue;
88 foreach ($config_cascade['mediameta'][$config_group] as $config_file) {
89 if(@file_exists($config_file)){
90 include($config_file);
91 }
92 }
93 }
94 }
95
96 $src = mediaFN($id);
97
98 // output
99 echo '<h1>'.hsc(noNS($id)).'</h1>'.NL;
100 echo '<form action="'.DOKU_BASE.'lib/exe/mediamanager.php" accept-charset="utf-8" method="post" class="meta">'.NL;
101 formSecurityToken();
102 foreach($fields as $key => $field){
103 // get current value
104 $tags = array($field[0]);
105 if(is_array($field[3])) $tags = array_merge($tags,$field[3]);
106 $value = tpl_img_getTag($tags,'',$src);
107 $value = cleanText($value);
108
109 // prepare attributes
110 $p = array();
111 $p['class'] = 'edit';
112 $p['id'] = 'meta__'.$key;
113 $p['name'] = 'meta['.$field[0].']';
114
115 // put label
116 echo '<div class="metafield">';
117 echo '<label for="meta__'.$key.'">';
118 echo ($lang[$field[1]]) ? $lang[$field[1]] : $field[1];
119 echo ':</label>';
120
121 // put input field
122 if($field[2] == 'text'){
123 $p['value'] = $value;
124 $p['type'] = 'text';
125 $att = buildAttributes($p);
126 echo "<input $att/>".NL;
127 }else{
128 $att = buildAttributes($p);
129 echo "<textarea $att rows=\"6\" cols=\"50\">".formText($value).'</textarea>'.NL;
130 }
131 echo '</div>'.NL;
132 }
133 echo '<div class="buttons">'.NL;
134 echo '<input type="hidden" name="img" value="'.hsc($id).'" />'.NL;
135 echo '<input name="do[save]" type="submit" value="'.$lang['btn_save'].
136 '" title="'.$lang['btn_save'].' [S]" accesskey="s" class="button" />'.NL;
137 echo '<input name="do[cancel]" type="submit" value="'.$lang['btn_cancel'].
138 '" title="'.$lang['btn_cancel'].' [C]" accesskey="c" class="button" />'.NL;
139 echo '</div>'.NL;
140 echo '</form>'.NL;
141}
142
143/**
144 * Convenience function to check if a media file is still in use
145 *
146 * @author Michael Klier <[email protected]>
147 */
148function media_inuse($id) {
149 global $conf;
150 $mediareferences = array();
151 if($conf['refcheck']){
152 $mediareferences = ft_mediause($id,$conf['refshow']);
153 if(!count($mediareferences)) {
154 return false;
155 } else {
156 return $mediareferences;
157 }
158 } else {
159 return false;
160 }
161}
162
163define('DOKU_MEDIA_DELETED', 1);
164define('DOKU_MEDIA_NOT_AUTH', 2);
165define('DOKU_MEDIA_INUSE', 4);
166define('DOKU_MEDIA_EMPTY_NS', 8);
167
168/**
169 * Handles media file deletions
170 *
171 * If configured, checks for media references before deletion
172 *
173 * @author Andreas Gohr <[email protected]>
174 * @return int One of: 0,
175 DOKU_MEDIA_DELETED,
176 DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS,
177 DOKU_MEDIA_NOT_AUTH,
178 DOKU_MEDIA_INUSE
179 */
180function media_delete($id,$auth){
181 if($auth < AUTH_DELETE) return DOKU_MEDIA_NOT_AUTH;
182 if(media_inuse($id)) return DOKU_MEDIA_INUSE;
183
184 $file = mediaFN($id);
185
186 // trigger an event - MEDIA_DELETE_FILE
187 $data['id'] = $id;
188 $data['name'] = basename($file);
189 $data['path'] = $file;
190 $data['size'] = (@file_exists($file)) ? filesize($file) : 0;
191
192 $data['unl'] = false;
193 $data['del'] = false;
194 $evt = new Doku_Event('MEDIA_DELETE_FILE',$data);
195 if ($evt->advise_before()) {
196 $data['unl'] = @unlink($file);
197 if($data['unl']){
198 addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_DELETE);
199 $data['del'] = io_sweepNS($id,'mediadir');
200 }
201 }
202 $evt->advise_after();
203 unset($evt);
204
205 if($data['unl'] && $data['del']){
206 return DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS;
207 }
208
209 return $data['unl'] ? DOKU_MEDIA_DELETED : 0;
210}
211
212/**
213 * Handles media file uploads
214 *
215 * @author Andreas Gohr <[email protected]>
216 * @author Michael Klier <[email protected]>
217 * @return mixed false on error, id of the new file on success
218 */
219function media_upload($ns,$auth){
220 if(!checkSecurityToken()) return false;
221 global $lang;
222
223 // get file and id
224 $id = $_POST['id'];
225 $file = $_FILES['upload'];
226 if(empty($id)) $id = $file['name'];
227
228 // check for errors (messages are done in lib/exe/mediamanager.php)
229 if($file['error']) return false;
230
231 // check extensions
232 list($fext,$fmime,$dl) = mimetype($file['name']);
233 list($iext,$imime,$dl) = mimetype($id);
234 if($fext && !$iext){
235 // no extension specified in id - read original one
236 $id .= '.'.$fext;
237 $imime = $fmime;
238 }elseif($fext && $fext != $iext){
239 // extension was changed, print warning
240 msg(sprintf($lang['mediaextchange'],$fext,$iext));
241 }
242
243 $res = media_save(array('name' => $file['tmp_name'],
244 'mime' => $imime,
245 'ext' => $iext), $ns.':'.$id,
246 $_REQUEST['ow'], $auth, 'move_uploaded_file');
247 if (is_array($res)) {
248 msg($res[0], $res[1]);
249 return false;
250 }
251 return $res;
252}
253
254/**
255 * This generates an action event and delegates to _media_upload_action().
256 * Action plugins are allowed to pre/postprocess the uploaded file.
257 * (The triggered event is preventable.)
258 *
259 * Event data:
260 * $data[0] fn_tmp: the temporary file name (read from $_FILES)
261 * $data[1] fn: the file name of the uploaded file
262 * $data[2] id: the future directory id of the uploaded file
263 * $data[3] imime: the mimetype of the uploaded file
264 * $data[4] overwrite: if an existing file is going to be overwritten
265 *
266 * @triggers MEDIA_UPLOAD_FINISH
267 */
268function media_save($file, $id, $ow, $auth, $move) {
269 if($auth < AUTH_UPLOAD) {
270 return array("You don't have permissions to upload files.", -1);
271 }
272
273 if (!isset($file['mime']) || !isset($file['ext'])) {
274 list($ext, $mime) = mimetype($id);
275 if (!isset($file['mime'])) {
276 $file['mime'] = $mime;
277 }
278 if (!isset($file['ext'])) {
279 $file['ext'] = $ext;
280 }
281 }
282
283 global $lang;
284
285 // get filename
286 $id = cleanID($id,false,true);
287 $fn = mediaFN($id);
288
289 // get filetype regexp
290 $types = array_keys(getMimeTypes());
291 $types = array_map(create_function('$q','return preg_quote($q,"/");'),$types);
292 $regex = join('|',$types);
293
294 // because a temp file was created already
295 if(!preg_match('/\.('.$regex.')$/i',$fn)) {
296 return array($lang['uploadwrong'],-1);
297 }
298
299 //check for overwrite
300 $overwrite = @file_exists($fn);
301 if($overwrite && (!$ow || $auth < AUTH_DELETE)) {
302 return array($lang['uploadexist'], 0);
303 }
304 // check for valid content
305 $ok = media_contentcheck($file['name'], $file['mime']);
306 if($ok == -1){
307 return array(sprintf($lang['uploadbadcontent'],'.' . $file['ext']),-1);
308 }elseif($ok == -2){
309 return array($lang['uploadspam'],-1);
310 }elseif($ok == -3){
311 return array($lang['uploadxss'],-1);
312 }
313
314 // prepare event data
315 $data[0] = $file['name'];
316 $data[1] = $fn;
317 $data[2] = $id;
318 $data[3] = $file['mime'];
319 $data[4] = $overwrite;
320 $data[5] = $move;
321
322 // trigger event
323 return trigger_event('MEDIA_UPLOAD_FINISH', $data, '_media_upload_action', true);
324}
325
326/**
327 * Callback adapter for media_upload_finish()
328 * @author Michael Klier <[email protected]>
329 */
330function _media_upload_action($data) {
331 // fixme do further sanity tests of given data?
332 if(is_array($data) && count($data)===6) {
333 return media_upload_finish($data[0], $data[1], $data[2], $data[3], $data[4], $data[5]);
334 } else {
335 return false; //callback error
336 }
337}
338
339/**
340 * Saves an uploaded media file
341 *
342 * @author Andreas Gohr <[email protected]>
343 * @author Michael Klier <[email protected]>
344 */
345function media_upload_finish($fn_tmp, $fn, $id, $imime, $overwrite, $move = 'move_uploaded_file') {
346 global $conf;
347 global $lang;
348
349 // prepare directory
350 io_createNamespace($id, 'media');
351
352 if($move($fn_tmp, $fn)) {
353 // Set the correct permission here.
354 // Always chmod media because they may be saved with different permissions than expected from the php umask.
355 // (Should normally chmod to $conf['fperm'] only if $conf['fperm'] is set.)
356 chmod($fn, $conf['fmode']);
357 msg($lang['uploadsucc'],1);
358 media_notify($id,$fn,$imime);
359 // add a log entry to the media changelog
360 if ($overwrite) {
361 addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_EDIT);
362 } else {
363 addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_CREATE);
364 }
365 return $id;
366 }else{
367 return array($lang['uploadfail'],-1);
368 }
369}
370
371/**
372 * This function checks if the uploaded content is really what the
373 * mimetype says it is. We also do spam checking for text types here.
374 *
375 * We need to do this stuff because we can not rely on the browser
376 * to do this check correctly. Yes, IE is broken as usual.
377 *
378 * @author Andreas Gohr <[email protected]>
379 * @link http://www.splitbrain.org/blog/2007-02/12-internet_explorer_facilitates_cross_site_scripting
380 * @fixme check all 26 magic IE filetypes here?
381 */
382function media_contentcheck($file,$mime){
383 global $conf;
384 if($conf['iexssprotect']){
385 $fh = @fopen($file, 'rb');
386 if($fh){
387 $bytes = fread($fh, 256);
388 fclose($fh);
389 if(preg_match('/<(script|a|img|html|body|iframe)[\s>]/i',$bytes)){
390 return -3;
391 }
392 }
393 }
394 if(substr($mime,0,6) == 'image/'){
395 $info = @getimagesize($file);
396 if($mime == 'image/gif' && $info[2] != 1){
397 return -1;
398 }elseif($mime == 'image/jpeg' && $info[2] != 2){
399 return -1;
400 }elseif($mime == 'image/png' && $info[2] != 3){
401 return -1;
402 }
403 # fixme maybe check other images types as well
404 }elseif(substr($mime,0,5) == 'text/'){
405 global $TEXT;
406 $TEXT = io_readFile($file);
407 if(checkwordblock()){
408 return -2;
409 }
410 }
411 return 0;
412}
413
414/**
415 * Send a notify mail on uploads
416 *
417 * @author Andreas Gohr <[email protected]>
418 */
419function media_notify($id,$file,$mime){
420 global $lang;
421 global $conf;
422 global $INFO;
423 if(empty($conf['notify'])) return; //notify enabled?
424
425 $ip = clientIP();
426
427 $text = rawLocale('uploadmail');
428 $text = str_replace('@DATE@',dformat(),$text);
429 $text = str_replace('@BROWSER@',$_SERVER['HTTP_USER_AGENT'],$text);
430 $text = str_replace('@IPADDRESS@',$ip,$text);
431 $text = str_replace('@HOSTNAME@',gethostsbyaddrs($ip),$text);
432 $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
433 $text = str_replace('@USER@',$_SERVER['REMOTE_USER'],$text);
434 $text = str_replace('@MIME@',$mime,$text);
435 $text = str_replace('@MEDIA@',ml($id,'',true,'&',true),$text);
436 $text = str_replace('@SIZE@',filesize_h(filesize($file)),$text);
437
438 $subject = '['.$conf['title'].'] '.$lang['mail_upload'].' '.$id;
439
440 mail_send($conf['notify'],$subject,$text,$conf['mailfrom']);
441}
442
443/**
444 * List all files in a given Media namespace
445 */
446function media_filelist($ns,$auth=null,$jump=''){
447 global $conf;
448 global $lang;
449 $ns = cleanID($ns);
450
451 // check auth our self if not given (needed for ajax calls)
452 if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
453
454 echo '<h1 id="media__ns">:'.hsc($ns).'</h1>'.NL;
455
456 if($auth < AUTH_READ){
457 // FIXME: print permission warning here instead?
458 echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
459 }else{
460 media_uploadform($ns, $auth);
461
462 $dir = utf8_encodeFN(str_replace(':','/',$ns));
463 $data = array();
464 search($data,$conf['mediadir'],'search_media',
465 array('showmsg'=>true,'depth'=>1),$dir);
466
467 if(!count($data)){
468 echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
469 }else foreach($data as $item){
470 media_printfile($item,$auth,$jump);
471 }
472 }
473 media_searchform($ns);
474}
475
476/**
477 * List all files found by the search request
478 *
479 * @author Tobias Sarnowski <[email protected]>
480 * @author Andreas Gohr <[email protected]>
481 * @triggers MEDIA_SEARCH
482 */
483function media_searchlist($query,$ns,$auth=null){
484 global $conf;
485 global $lang;
486 $ns = cleanID($ns);
487
488 if ($query) {
489 $evdata = array(
490 'ns' => $ns,
491 'data' => array(),
492 'query' => $query
493 );
494 $evt = new Doku_Event('MEDIA_SEARCH', $evdata);
495 if ($evt->advise_before()) {
496 $dir = utf8_encodeFN(str_replace(':','/',$evdata['ns']));
497 $pattern = '/'.preg_quote($evdata['query'],'/').'/i';
498 search($evdata['data'],
499 $conf['mediadir'],
500 'search_media',
501 array('showmsg'=>false,'pattern'=>$pattern),
502 $dir);
503 }
504 $evt->advise_after();
505 unset($evt);
506 }
507
508 echo '<h1 id="media__ns">'.sprintf($lang['searchmedia_in'],hsc($ns).':*').'</h1>'.NL;
509 media_searchform($ns,$query);
510
511 if(!count($evdata['data'])){
512 echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
513 }else foreach($evdata['data'] as $item){
514 media_printfile($item,$item['perm'],'',true);
515 }
516}
517
518/**
519 * Print action links for a file depending on filetype
520 * and available permissions
521 */
522function media_fileactions($item,$auth){
523 global $lang;
524
525 // view button
526 $link = ml($item['id'],'',true);
527 echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_BASE.'lib/images/magnifier.png" '.
528 'alt="'.$lang['mediaview'].'" title="'.$lang['mediaview'].'" class="btn" /></a>';
529
530 // no further actions if not writable
531 if(!$item['writable']) return;
532
533 // delete button
534 if($auth >= AUTH_DELETE){
535 echo ' <a href="'.DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']).
536 '&amp;sectok='.getSecurityToken().'" class="btn_media_delete" title="'.$item['id'].'">'.
537 '<img src="'.DOKU_BASE.'lib/images/trash.png" alt="'.$lang['btn_delete'].'" '.
538 'title="'.$lang['btn_delete'].'" class="btn" /></a>';
539 }
540
541 // edit button
542 if($auth >= AUTH_UPLOAD && $item['isimg'] && $item['meta']->getField('File.Mime') == 'image/jpeg'){
543 echo ' <a href="'.DOKU_BASE.'lib/exe/mediamanager.php?edit='.rawurlencode($item['id']).'">'.
544 '<img src="'.DOKU_BASE.'lib/images/pencil.png" alt="'.$lang['metaedit'].'" '.
545 'title="'.$lang['metaedit'].'" class="btn" /></a>';
546 }
547
548}
549
550/**
551 * Formats and prints one file in the list
552 */
553function media_printfile($item,$auth,$jump,$display_namespace=false){
554 global $lang;
555 global $conf;
556
557 // Prepare zebra coloring
558 // I always wanted to use this variable name :-D
559 static $twibble = 1;
560 $twibble *= -1;
561 $zebra = ($twibble == -1) ? 'odd' : 'even';
562
563 // Automatically jump to recent action
564 if($jump == $item['id']) {
565 $jump = ' id="scroll__here" ';
566 }else{
567 $jump = '';
568 }
569
570 // Prepare fileicons
571 list($ext,$mime,$dl) = mimetype($item['file'],false);
572 $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
573 $class = 'select mediafile mf_'.$class;
574
575 // Prepare filename
576 $file = utf8_decodeFN($item['file']);
577
578 // Prepare info
579 $info = '';
580 if($item['isimg']){
581 $info .= (int) $item['meta']->getField('File.Width');
582 $info .= '&#215;';
583 $info .= (int) $item['meta']->getField('File.Height');
584 $info .= ' ';
585 }
586 $info .= '<i>'.dformat($item['mtime']).'</i>';
587 $info .= ' ';
588 $info .= filesize_h($item['size']);
589
590 // output
591 echo '<div class="'.$zebra.'"'.$jump.'>'.NL;
592 if (!$display_namespace) {
593 echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($file).'</a> ';
594 } else {
595 echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($item['id']).'</a><br/>';
596 }
597 echo '<span class="info">('.$info.')</span>'.NL;
598 media_fileactions($item,$auth);
599 echo '<div class="example" id="ex_'.str_replace(':','_',$item['id']).'">';
600 echo $lang['mediausage'].' <code>{{:'.$item['id'].'}}</code>';
601 echo '</div>';
602 if($item['isimg']) media_printimgdetail($item);
603 echo '<div class="clearer"></div>'.NL;
604 echo '</div>'.NL;
605}
606
607/**
608 * Prints a thumbnail and metainfos
609 */
610function media_printimgdetail($item){
611 // prepare thumbnail
612 $w = (int) $item['meta']->getField('File.Width');
613 $h = (int) $item['meta']->getField('File.Height');
614 if($w>120 || $h>120){
615 $ratio = $item['meta']->getResizeRatio(120);
616 $w = floor($w * $ratio);
617 $h = floor($h * $ratio);
618 }
619 $src = ml($item['id'],array('w'=>$w,'h'=>$h));
620 $p = array();
621 $p['width'] = $w;
622 $p['height'] = $h;
623 $p['alt'] = $item['id'];
624 $p['class'] = 'thumb';
625 $att = buildAttributes($p);
626
627 // output
628 echo '<div class="detail">';
629 echo '<div class="thumb">';
630 echo '<a name="d_:'.$item['id'].'" class="select">';
631 echo '<img src="'.$src.'" '.$att.' />';
632 echo '</a>';
633 echo '</div>';
634
635 // read EXIF/IPTC data
636 $t = $item['meta']->getField(array('IPTC.Headline','xmp.dc:title'));
637 $d = $item['meta']->getField(array('IPTC.Caption','EXIF.UserComment',
638 'EXIF.TIFFImageDescription',
639 'EXIF.TIFFUserComment'));
640 if(utf8_strlen($d) > 250) $d = utf8_substr($d,0,250).'...';
641 $k = $item['meta']->getField(array('IPTC.Keywords','IPTC.Category','xmp.dc:subject'));
642
643 // print EXIF/IPTC data
644 if($t || $d || $k ){
645 echo '<p>';
646 if($t) echo '<strong>'.htmlspecialchars($t).'</strong><br />';
647 if($d) echo htmlspecialchars($d).'<br />';
648 if($t) echo '<em>'.htmlspecialchars($k).'</em>';
649 echo '</p>';
650 }
651 echo '</div>';
652}
653
654/**
655 * Print the media upload form if permissions are correct
656 *
657 * @author Andreas Gohr <[email protected]>
658 */
659function media_uploadform($ns, $auth){
660 global $lang;
661
662 if($auth < AUTH_UPLOAD) return; //fixme print info on missing permissions?
663
664 // The default HTML upload form
665 $form = new Doku_Form(array('id' => 'dw__upload',
666 'action' => DOKU_BASE.'lib/exe/mediamanager.php',
667 'enctype' => 'multipart/form-data'));
668 $form->addElement('<div class="upload">' . $lang['mediaupload'] . '</div>');
669 $form->addElement(formSecurityToken());
670 $form->addHidden('ns', hsc($ns));
671 $form->addElement(form_makeOpenTag('p'));
672 $form->addElement(form_makeFileField('upload', $lang['txt_upload'].':', 'upload__file'));
673 $form->addElement(form_makeCloseTag('p'));
674 $form->addElement(form_makeOpenTag('p'));
675 $form->addElement(form_makeTextField('id', '', $lang['txt_filename'].':', 'upload__name'));
676 $form->addElement(form_makeButton('submit', '', $lang['btn_upload']));
677 $form->addElement(form_makeCloseTag('p'));
678
679 if($auth >= AUTH_DELETE){
680 $form->addElement(form_makeOpenTag('p'));
681 $form->addElement(form_makeCheckboxField('ow', 1, $lang['txt_overwrt'], 'dw__ow', 'check'));
682 $form->addElement(form_makeCloseTag('p'));
683 }
684 html_form('upload', $form);
685
686 // prepare flashvars for multiupload
687 $opt = array(
688 'L_gridname' => $lang['mu_gridname'] ,
689 'L_gridsize' => $lang['mu_gridsize'] ,
690 'L_gridstat' => $lang['mu_gridstat'] ,
691 'L_namespace' => $lang['mu_namespace'] ,
692 'L_overwrite' => $lang['txt_overwrt'],
693 'L_browse' => $lang['mu_browse'],
694 'L_upload' => $lang['btn_upload'],
695 'L_toobig' => $lang['mu_toobig'],
696 'L_ready' => $lang['mu_ready'],
697 'L_done' => $lang['mu_done'],
698 'L_fail' => $lang['mu_fail'],
699 'L_authfail' => $lang['mu_authfail'],
700 'L_progress' => $lang['mu_progress'],
701 'L_filetypes' => $lang['mu_filetypes'],
702 'L_info' => $lang['mu_info'],
703 'L_lasterr' => $lang['mu_lasterr'],
704
705 'O_ns' => ":$ns",
706 'O_backend' => 'mediamanager.php?'.session_name().'='.session_id(),
707 'O_maxsize' => php_to_byte(ini_get('upload_max_filesize')),
708 'O_extensions'=> join('|',array_keys(getMimeTypes())),
709 'O_overwrite' => ($auth >= AUTH_DELETE),
710 'O_sectok' => getSecurityToken(),
711 'O_authtok' => auth_createToken(),
712 );
713 $var = buildURLparams($opt);
714 // output the flash uploader
715 ?>
716 <div id="dw__flashupload" style="display:none">
717 <div class="upload"><?php echo $lang['mu_intro']?></div>
718 <?php echo html_flashobject('multipleUpload.swf','500','190',null,$opt); ?>
719 </div>
720 <?php
721}
722
723/**
724 * Print the search field form
725 *
726 * @author Tobias Sarnowski <[email protected]>
727 */
728function media_searchform($ns,$query=''){
729 global $lang;
730
731 // The default HTML search form
732 $form = new Doku_Form(array('id' => 'dw__mediasearch', 'action' => DOKU_BASE.'lib/exe/mediamanager.php'));
733 $form->addElement('<div class="upload">' . $lang['mediasearch'] . '</div>');
734 $form->addElement(formSecurityToken());
735 $form->addHidden('ns', $ns);
736 $form->addHidden('do', 'searchlist');
737 $form->addElement(form_makeOpenTag('p'));
738 $form->addElement(form_makeTextField('q', $query,$lang['searchmedia'],'','',array('title'=>sprintf($lang['searchmedia_in'],hsc($ns).':*'))));
739 $form->addElement(form_makeButton('submit', '', $lang['btn_search']));
740 $form->addElement(form_makeCloseTag('p'));
741 html_form('searchmedia', $form);
742}
743
744/**
745 * Build a tree outline of available media namespaces
746 *
747 * @author Andreas Gohr <[email protected]>
748 */
749function media_nstree($ns){
750 global $conf;
751 global $lang;
752
753 // currently selected namespace
754 $ns = cleanID($ns);
755 if(empty($ns)){
756 global $ID;
757 $ns = dirname(str_replace(':','/',$ID));
758 if($ns == '.') $ns ='';
759 }
760 $ns = utf8_encodeFN(str_replace(':','/',$ns));
761
762 $data = array();
763 search($data,$conf['mediadir'],'search_index',array('ns' => $ns, 'nofiles' => true));
764
765 // wrap a list with the root level around the other namespaces
766 $item = array( 'level' => 0, 'id' => '',
767 'open' =>'true', 'label' => '['.$lang['mediaroot'].']');
768
769 echo '<ul class="idx">';
770 echo media_nstree_li($item);
771 echo media_nstree_item($item);
772 echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
773 echo '</li>';
774 echo '</ul>';
775}
776
777/**
778 * Userfunction for html_buildlist
779 *
780 * Prints a media namespace tree item
781 *
782 * @author Andreas Gohr <[email protected]>
783 */
784function media_nstree_item($item){
785 $pos = strrpos($item['id'], ':');
786 $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
787 if(!$item['label']) $item['label'] = $label;
788
789 $ret = '';
790 $ret .= '<a href="'.DOKU_BASE.'lib/exe/mediamanager.php?ns='.idfilter($item['id']).'" class="idx_dir">';
791 $ret .= $item['label'];
792 $ret .= '</a>';
793 return $ret;
794}
795
796/**
797 * Userfunction for html_buildlist
798 *
799 * Prints a media namespace tree item opener
800 *
801 * @author Andreas Gohr <[email protected]>
802 */
803function media_nstree_li($item){
804 $class='media level'.$item['level'];
805 if($item['open']){
806 $class .= ' open';
807 $img = DOKU_BASE.'lib/images/minus.gif';
808 $alt = '&minus;';
809 }else{
810 $class .= ' closed';
811 $img = DOKU_BASE.'lib/images/plus.gif';
812 $alt = '+';
813 }
814 return '<li class="'.$class.'">'.
815 '<img src="'.$img.'" alt="'.$alt.'" />';
816}
817
818/**
819 * Resizes the given image to the given size
820 *
821 * @author Andreas Gohr <[email protected]>
822 */
823function media_resize_image($file, $ext, $w, $h=0){
824 global $conf;
825
826 $info = @getimagesize($file); //get original size
827 if($info == false) return $file; // that's no image - it's a spaceship!
828
829 if(!$h) $h = round(($w * $info[1]) / $info[0]);
830
831 // we wont scale up to infinity
832 if($w > 2000 || $h > 2000) return $file;
833
834 //cache
835 $local = getCacheName($file,'.media.'.$w.'x'.$h.'.'.$ext);
836 $mtime = @filemtime($local); // 0 if not exists
837
838 if( $mtime > filemtime($file) ||
839 media_resize_imageIM($ext,$file,$info[0],$info[1],$local,$w,$h) ||
840 media_resize_imageGD($ext,$file,$info[0],$info[1],$local,$w,$h) ){
841 if($conf['fperm']) chmod($local, $conf['fperm']);
842 return $local;
843 }
844 //still here? resizing failed
845 return $file;
846}
847
848/**
849 * Crops the given image to the wanted ratio, then calls media_resize_image to scale it
850 * to the wanted size
851 *
852 * Crops are centered horizontally but prefer the upper third of an vertical
853 * image because most pics are more interesting in that area (rule of thirds)
854 *
855 * @author Andreas Gohr <[email protected]>
856 */
857function media_crop_image($file, $ext, $w, $h=0){
858 global $conf;
859
860 if(!$h) $h = $w;
861 $info = @getimagesize($file); //get original size
862 if($info == false) return $file; // that's no image - it's a spaceship!
863
864 // calculate crop size
865 $fr = $info[0]/$info[1];
866 $tr = $w/$h;
867 if($tr >= 1){
868 if($tr > $fr){
869 $cw = $info[0];
870 $ch = (int) $info[0]/$tr;
871 }else{
872 $cw = (int) $info[1]*$tr;
873 $ch = $info[1];
874 }
875 }else{
876 if($tr < $fr){
877 $cw = (int) $info[1]*$tr;
878 $ch = $info[1];
879 }else{
880 $cw = $info[0];
881 $ch = (int) $info[0]/$tr;
882 }
883 }
884 // calculate crop offset
885 $cx = (int) ($info[0]-$cw)/2;
886 $cy = (int) ($info[1]-$ch)/3;
887
888 //cache
889 $local = getCacheName($file,'.media.'.$cw.'x'.$ch.'.crop.'.$ext);
890 $mtime = @filemtime($local); // 0 if not exists
891
892 if( $mtime > filemtime($file) ||
893 media_crop_imageIM($ext,$file,$info[0],$info[1],$local,$cw,$ch,$cx,$cy) ||
894 media_resize_imageGD($ext,$file,$cw,$ch,$local,$cw,$ch,$cx,$cy) ){
895 if($conf['fperm']) chmod($local, $conf['fperm']);
896 return media_resize_image($local,$ext, $w, $h);
897 }
898
899 //still here? cropping failed
900 return media_resize_image($file,$ext, $w, $h);
901}
902
903/**
904 * Download a remote file and return local filename
905 *
906 * returns false if download fails. Uses cached file if available and
907 * wanted
908 *
909 * @author Andreas Gohr <[email protected]>
910 * @author Pavel Vitis <[email protected]>
911 */
912function media_get_from_URL($url,$ext,$cache){
913 global $conf;
914
915 // if no cache or fetchsize just redirect
916 if ($cache==0) return false;
917 if (!$conf['fetchsize']) return false;
918
919 $local = getCacheName(strtolower($url),".media.$ext");
920 $mtime = @filemtime($local); // 0 if not exists
921
922 //decide if download needed:
923 if( ($mtime == 0) || // cache does not exist
924 ($cache != -1 && $mtime < time()-$cache) // 'recache' and cache has expired
925 ){
926 if(media_image_download($url,$local)){
927 return $local;
928 }else{
929 return false;
930 }
931 }
932
933 //if cache exists use it else
934 if($mtime) return $local;
935
936 //else return false
937 return false;
938}
939
940/**
941 * Download image files
942 *
943 * @author Andreas Gohr <[email protected]>
944 */
945function media_image_download($url,$file){
946 global $conf;
947 $http = new DokuHTTPClient();
948 $http->max_bodysize = $conf['fetchsize'];
949 $http->timeout = 25; //max. 25 sec
950 $http->header_regexp = '!\r\nContent-Type: image/(jpe?g|gif|png)!i';
951
952 $data = $http->get($url);
953 if(!$data) return false;
954
955 $fileexists = @file_exists($file);
956 $fp = @fopen($file,"w");
957 if(!$fp) return false;
958 fwrite($fp,$data);
959 fclose($fp);
960 if(!$fileexists and $conf['fperm']) chmod($file, $conf['fperm']);
961
962 // check if it is really an image
963 $info = @getimagesize($file);
964 if(!$info){
965 @unlink($file);
966 return false;
967 }
968
969 return true;
970}
971
972/**
973 * resize images using external ImageMagick convert program
974 *
975 * @author Pavel Vitis <[email protected]>
976 * @author Andreas Gohr <[email protected]>
977 */
978function media_resize_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h){
979 global $conf;
980
981 // check if convert is configured
982 if(!$conf['im_convert']) return false;
983
984 // prepare command
985 $cmd = $conf['im_convert'];
986 $cmd .= ' -resize '.$to_w.'x'.$to_h.'!';
987 if ($ext == 'jpg' || $ext == 'jpeg') {
988 $cmd .= ' -quality '.$conf['jpg_quality'];
989 }
990 $cmd .= " $from $to";
991
992 @exec($cmd,$out,$retval);
993 if ($retval == 0) return true;
994 return false;
995}
996
997/**
998 * crop images using external ImageMagick convert program
999 *
1000 * @author Andreas Gohr <[email protected]>
1001 */
1002function media_crop_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x,$ofs_y){
1003 global $conf;
1004
1005 // check if convert is configured
1006 if(!$conf['im_convert']) return false;
1007
1008 // prepare command
1009 $cmd = $conf['im_convert'];
1010 $cmd .= ' -crop '.$to_w.'x'.$to_h.'+'.$ofs_x.'+'.$ofs_y;
1011 if ($ext == 'jpg' || $ext == 'jpeg') {
1012 $cmd .= ' -quality '.$conf['jpg_quality'];
1013 }
1014 $cmd .= " $from $to";
1015
1016 @exec($cmd,$out,$retval);
1017 if ($retval == 0) return true;
1018 return false;
1019}
1020
1021/**
1022 * resize or crop images using PHP's libGD support
1023 *
1024 * @author Andreas Gohr <[email protected]>
1025 * @author Sebastian Wienecke <[email protected]>
1026 */
1027function media_resize_imageGD($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x=0,$ofs_y=0){
1028 global $conf;
1029
1030 if($conf['gdlib'] < 1) return false; //no GDlib available or wanted
1031
1032 // check available memory
1033 if(!is_mem_available(($from_w * $from_h * 4) + ($to_w * $to_h * 4))){
1034 return false;
1035 }
1036
1037 // create an image of the given filetype
1038 if ($ext == 'jpg' || $ext == 'jpeg'){
1039 if(!function_exists("imagecreatefromjpeg")) return false;
1040 $image = @imagecreatefromjpeg($from);
1041 }elseif($ext == 'png') {
1042 if(!function_exists("imagecreatefrompng")) return false;
1043 $image = @imagecreatefrompng($from);
1044
1045 }elseif($ext == 'gif') {
1046 if(!function_exists("imagecreatefromgif")) return false;
1047 $image = @imagecreatefromgif($from);
1048 }
1049 if(!$image) return false;
1050
1051 if(($conf['gdlib']>1) && function_exists("imagecreatetruecolor") && $ext != 'gif'){
1052 $newimg = @imagecreatetruecolor ($to_w, $to_h);
1053 }
1054 if(!$newimg) $newimg = @imagecreate($to_w, $to_h);
1055 if(!$newimg){
1056 imagedestroy($image);
1057 return false;
1058 }
1059
1060 //keep png alpha channel if possible
1061 if($ext == 'png' && $conf['gdlib']>1 && function_exists('imagesavealpha')){
1062 imagealphablending($newimg, false);
1063 imagesavealpha($newimg,true);
1064 }
1065
1066 //keep gif transparent color if possible
1067 if($ext == 'gif' && function_exists('imagefill') && function_exists('imagecolorallocate')) {
1068 if(function_exists('imagecolorsforindex') && function_exists('imagecolortransparent')) {
1069 $transcolorindex = @imagecolortransparent($image);
1070 if($transcolorindex >= 0 ) { //transparent color exists
1071 $transcolor = @imagecolorsforindex($image, $transcolorindex);
1072 $transcolorindex = @imagecolorallocate($newimg, $transcolor['red'], $transcolor['green'], $transcolor['blue']);
1073 @imagefill($newimg, 0, 0, $transcolorindex);
1074 @imagecolortransparent($newimg, $transcolorindex);
1075 }else{ //filling with white
1076 $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
1077 @imagefill($newimg, 0, 0, $whitecolorindex);
1078 }
1079 }else{ //filling with white
1080 $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
1081 @imagefill($newimg, 0, 0, $whitecolorindex);
1082 }
1083 }
1084
1085 //try resampling first
1086 if(function_exists("imagecopyresampled")){
1087 if(!@imagecopyresampled($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h)) {
1088 imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
1089 }
1090 }else{
1091 imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
1092 }
1093
1094 $okay = false;
1095 if ($ext == 'jpg' || $ext == 'jpeg'){
1096 if(!function_exists('imagejpeg')){
1097 $okay = false;
1098 }else{
1099 $okay = imagejpeg($newimg, $to, $conf['jpg_quality']);
1100 }
1101 }elseif($ext == 'png') {
1102 if(!function_exists('imagepng')){
1103 $okay = false;
1104 }else{
1105 $okay = imagepng($newimg, $to);
1106 }
1107 }elseif($ext == 'gif') {
1108 if(!function_exists('imagegif')){
1109 $okay = false;
1110 }else{
1111 $okay = imagegif($newimg, $to);
1112 }
1113 }
1114
1115 // destroy GD image ressources
1116 if($image) imagedestroy($image);
1117 if($newimg) imagedestroy($newimg);
1118
1119 return $okay;
1120}
1121
1122/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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