xref: /dokuwiki/inc/media.php (revision 44409c3dd2fce9ef930e0e23d47f1a46e5bc7d1a) 
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')) define('DOKU_INC',realpath(dirname(__FILE__).'/../').'/');
10if(!defined('NL')) define('NL',"\n");
11
12require_once(DOKU_INC.'inc/html.php');
13require_once(DOKU_INC.'inc/search.php');
14require_once(DOKU_INC.'inc/JpegMeta.php');
15
16/**
17 * Lists pages which currently use a media file selected for deletion
18 *
19 * References uses the same visual as search results and share
20 * their CSS tags except pagenames won't be links.
21 *
22 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
23 */
24function media_filesinuse($data,$id){
25    global $lang;
26    echo '<h1>'.$lang['reference'].' <code>'.hsc(noNS($id)).'</code></h1>';
27    echo '<p>'.hsc($lang['ref_inuse']).'</p>';
28
29    $hidden=0; //count of hits without read permission
30    usort($data,'sort_search_fulltext');
31    foreach($data as $row){
32        if(auth_quickaclcheck($row['id']) >= AUTH_READ){
33            echo '<div class="search_result">';
34            echo '<span class="mediaref_ref">'.$row['id'].'</span>';
35            echo ': <span class="search_cnt">'.$row['count'].' '.$lang['hits'].'</span><br />';
36            echo '<div class="search_snippet">'.$row['snippet'].'</div>';
37            echo '</div>';
38        }else
39        $hidden++;
40    }
41    if ($hidden){
42      print '<div class="mediaref_hidden">'.$lang['ref_hidden'].'</div>';
43    }
44}
45
46/**
47 * Handles the saving of image meta data
48 *
49 * @author Andreas Gohr <andi@splitbrain.org>
50 */
51function media_metasave($id,$auth,$data){
52    if($auth < AUTH_UPLOAD) return false;
53    global $lang;
54    $src = mediaFN($id);
55
56    $meta = new JpegMeta($src);
57    $meta->_parseAll();
58
59    foreach($data as $key => $val){
60        $val=trim($val);
61        if(empty($val)){
62            $meta->deleteField($key);
63        }else{
64            $meta->setField($key,$val);
65        }
66    }
67
68    if($meta->save()){
69        msg($lang['metasaveok'],1);
70        return $id;
71    }else{
72        msg($lang['metasaveerr'],-1);
73        return false;
74    }
75}
76
77/**
78 * Display the form to edit image meta data
79 *
80 * @author Andreas Gohr <andi@splitbrain.org>
81 */
82function media_metaform($id,$auth){
83    if($auth < AUTH_UPLOAD) return false;
84    global $lang;
85
86    // load the field descriptions
87    static $fields = null;
88    if(is_null($fields)){
89        include(DOKU_CONF.'mediameta.php');
90        if(@file_exists(DOKU_CONF.'mediameta.local.php')){
91            include(DOKU_CONF.'mediameta.local.php');
92        }
93    }
94
95    $src = mediaFN($id);
96
97    // output
98    echo '<h1>'.hsc(noNS($id)).'</h1>'.NL;
99    echo '<form action="'.DOKU_BASE.'lib/exe/mediamanager.php" accept-charset="utf-8" method="post" class="meta">'.NL;
100    echo '<input type="hidden" name="img" value="'.hsc($id).'" />'.NL;
101    foreach($fields as $key => $field){
102        // get current value
103        $tags = array($field[0]);
104        if(is_array($field[3])) $tags = array_merge($tags,$field[3]);
105        $value = tpl_img_getTag($tags,'',$src);
106
107        // prepare attributes
108        $p = array();
109        $p['class'] = 'edit';
110        $p['id']    = 'meta__'.$key;
111        $p['name']  = 'meta['.$field[0].']';
112
113        // put label
114        echo '<div class="metafield">';
115        echo '<label for="meta__'.$key.'">';
116        echo ($lang[$field[1]]) ? $lang[$field[1]] : $field[1];
117        echo ':</label>';
118
119        // put input field
120        if($field[2] == 'text'){
121            $p['value'] = $value;
122            $p['type']  = 'text';
123            $att = buildAttributes($p);
124            echo "<input $att/>".NL;
125        }else{
126            $att = buildAttributes($p);
127            echo "<textarea $att>".formText($value).'</textarea>'.NL;
128        }
129        echo '</div>'.NL;
130    }
131    echo '<div class="buttons">'.NL;
132    echo '<input name="do[save]" type="submit" value="'.$lang['btn_save'].
133         '" title="ALT+S" accesskey="s" class="button" />'.NL;
134    echo '<input name="do[cancel]" type="submit" value="'.$lang['btn_cancel'].
135         '" title="ALT+C" accesskey="c" class="button" />'.NL;
136    echo '</div>'.NL;
137    echo '</form>'.NL;
138}
139
140/**
141 * Handles media file deletions
142 *
143 * If configured, checks for media references before deletion
144 *
145 * @author Andreas Gohr <andi@splitbrain.org>
146 * @return mixed false on error, true on delete or array with refs
147 */
148function media_delete($id,$auth){
149    if($auth < AUTH_DELETE) return false;
150    global $conf;
151    global $lang;
152
153    $mediareferences = array();
154    if($conf['refcheck']){
155        search($mediareferences,$conf['datadir'],'search_reference',array('query' => $id));
156    }
157
158    if(!count($mediareferences)){
159        $file = mediaFN($id);
160        if(@unlink($file)){
161            msg(str_replace('%s',noNS($id),$lang['deletesucc']),1);
162            io_sweepNS($id,'mediadir');
163            return true;
164        }
165        //something went wrong
166        msg(str_replace('%s',$file,$lang['deletefail']),-1);
167        return false;
168    }elseif(!$conf['refshow']){
169        msg(str_replace('%s',noNS($id),$lang['mediainuse']),0);
170        return false;
171    }
172
173    return $mediareferences;
174}
175
176/**
177 * Handles media file uploads
178 *
179 * @author Andreas Gohr <andi@splitbrain.org>
180 * @return mixed false on error, id of the new file on success
181 */
182function media_upload($ns,$auth){
183    if($auth < AUTH_UPLOAD) return false;
184    require_once(DOKU_INC.'inc/confutils.php');
185    global $lang;
186    global $conf;
187
188    // get file and id
189    $id   = $_POST['id'];
190    $file = $_FILES['upload'];
191    if(empty($id)) $id = $file['name'];
192
193    // check extensions
194    list($fext) = mimetype($file['name']);
195    list($iext) = mimetype($id);
196    if($fext && !$iext){
197        // no extension specified in id - readd original one
198        $id .= '.'.$fext;
199    }elseif($fext && $fext != $iext){
200        // extension was changed, print warning
201        msg(sprintf($lang['mediaextchange'],$fext,$iext));
202    }
203
204    // get filename
205    $id   = cleanID($ns.':'.$id);
206    $fn   = mediaFN($id);
207
208    // get filetype regexp
209    $types = array_keys(getMimeTypes());
210    $types = array_map(create_function('$q','return preg_quote($q,"/");'),$types);
211    $regex = join('|',$types);
212
213    // because a temp file was created already
214    if(preg_match('/\.('.$regex.')$/i',$fn)){
215        //check for overwrite
216        if(@file_exists($fn) && (!$_POST['ow'] || $auth < AUTH_DELETE)){
217            msg($lang['uploadexist'],0);
218            return false;
219        }
220        // prepare directory
221        io_makeFileDir($fn);
222        if(move_uploaded_file($file['tmp_name'], $fn)) {
223            // set the correct permission here
224            if($conf['fperm']) chmod($fn, $conf['fperm']);
225            msg($lang['uploadsucc'],1);
226            return $id;
227        }else{
228            msg($lang['uploadfail'],-1);
229        }
230    }else{
231        msg($lang['uploadwrong'],-1);
232    }
233    return false;
234}
235
236
237
238/**
239 * List all files in a given Media namespace
240 */
241function media_filelist($ns,$auth=null,$jump=''){
242    global $conf;
243    global $lang;
244    $ns = cleanID($ns);
245
246    // check auth our self if not given (needed for ajax calls)
247    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
248
249    echo '<h1 id="media__ns">:'.hsc($ns).'</h1>'.NL;
250
251    if($auth < AUTH_READ){
252        // FIXME: print permission warning here instead?
253        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
254        return;
255    }
256
257    media_uploadform($ns, $auth);
258
259    $dir = utf8_encodeFN(str_replace(':','/',$ns));
260    $data = array();
261    search($data,$conf['mediadir'],'search_media',array(),$dir);
262
263    if(!count($data)){
264        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
265        return;
266    }
267
268    foreach($data as $item){
269        media_printfile($item,$auth,$jump);
270    }
271}
272
273/**
274 * Print action links for a file depending on filetype
275 * and available permissions
276 *
277 * @todo contains inline javascript
278 */
279function media_fileactions($item,$auth){
280    global $lang;
281
282    // view button
283    $link = ml($item['id'],'',true);
284    echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_BASE.'lib/images/magnifier.png" '.
285         'alt="'.$lang['mediaview'].'" title="'.$lang['mediaview'].'" class="btn" /></a>';
286
287
288    // no further actions if not writable
289    if(!$item['writable']) return;
290
291    // delete button
292    if($auth >= AUTH_DELETE){
293        $ask  = addslashes($lang['del_confirm']).'\\n';
294        $ask .= addslashes($item['id']);
295
296        echo ' <a href="'.DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']).'" '.
297             'onclick="return confirm(\''.$ask.'\')" onkeypress="return confirm(\''.$ask.'\')">'.
298             '<img src="'.DOKU_BASE.'lib/images/trash.png" alt="'.$lang['btn_delete'].'" '.
299             'title="'.$lang['btn_delete'].'" class="btn" /></a>';
300    }
301
302    // edit button
303    if($auth >= AUTH_UPLOAD && $item['isimg'] && $item['meta']->getField('File.Mime') == 'image/jpeg'){
304        echo ' <a href="'.DOKU_BASE.'lib/exe/mediamanager.php?edit='.rawurlencode($item['id']).'">'.
305             '<img src="'.DOKU_BASE.'lib/images/pencil.png" alt="'.$lang['metaedit'].'" '.
306             'title="'.$lang['metaedit'].'" class="btn" /></a>';
307    }
308
309}
310
311/**
312 * Formats and prints one file in the list
313 */
314function media_printfile($item,$auth,$jump){
315    global $lang;
316
317    // Prepare zebra coloring
318    // I always wanted to use this variable name :-D
319    static $twibble = 1;
320    $twibble *= -1;
321    $zebra = ($twibble == -1) ? 'odd' : 'even';
322
323    // Automatically jump to recent action
324    if($jump == $item['id']) {
325        $jump = ' id="scroll__here" ';
326    }else{
327        $jump = '';
328    }
329
330    // Prepare fileicons
331    list($ext,$mime) = mimetype($item['file']);
332    $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
333    $class = 'select mediafile mf_'.$class;
334
335    // Prepare filename
336    $file = utf8_decodeFN($item['file']);
337
338    // Prepare info
339    $info = '';
340    if($item['isimg']){
341        $info .= (int) $item['meta']->getField('File.Width');
342        $info .= '&#215;';
343        $info .= (int) $item['meta']->getField('File.Height');
344        $info .= ' ';
345    }
346    $info .= filesize_h($item['size']);
347
348    // ouput
349    echo '<div class="'.$zebra.'"'.$jump.'>'.NL;
350    echo '<a name="h_'.$item['id'].'" class="'.$class.'">'.$file.'</a> ';
351    echo '<span class="info">('.$info.')</span>'.NL;
352    media_fileactions($item,$auth);
353    echo '<div class="example" id="ex_'.$item['id'].'">';
354    echo $lang['mediausage'].' <code>{{:'.$item['id'].'}}</code>';
355    echo '</div>';
356    if($item['isimg']) media_printimgdetail($item);
357    echo '<div class="clearer"></div>'.NL;
358    echo '</div>'.NL;
359}
360
361/**
362 * Prints a thumbnail and metainfos
363 */
364function media_printimgdetail($item){
365    // prepare thumbnail
366    $w = (int) $item['meta']->getField('File.Width');
367    $h = (int) $item['meta']->getField('File.Height');
368    if($w>120 || $h>120){
369        $ratio = $item['meta']->getResizeRatio(120);
370        $w = floor($w * $ratio);
371        $h = floor($h * $ratio);
372    }
373    $src = ml($item['id'],array('w'=>$w,'h'=>$h));
374    $p = array();
375    $p['width']  = $w;
376    $p['height'] = $h;
377    $p['alt']    = $item['id'];
378    $p['class']  = 'thumb';
379    $att = buildAttributes($p);
380
381    // output
382    echo '<div class="detail">';
383    echo '<div class="thumb">';
384    echo '<a name="d_'.$item['id'].'" class="select">';
385    echo '<img src="'.$src.'" '.$att.' />';
386    echo '</a>';
387    echo '</div>';
388
389    // read EXIF/IPTC data
390    $t = $item['meta']->getField('IPTC.Headline');
391    $d = $item['meta']->getField(array('IPTC.Caption','EXIF.UserComment',
392                                       'EXIF.TIFFImageDescription',
393                                       'EXIF.TIFFUserComment'));
394    if(utf8_strlen($d) > 250) $d = utf8_substr($d,0,250).'...';
395    $k = $item['meta']->getField(array('IPTC.Keywords','IPTC.Category'));
396
397    // print EXIF/IPTC data
398    if($t || $d || $k ){
399        echo '<p>';
400        if($t) echo '<strong>'.htmlspecialchars($t).'</strong><br />';
401        if($d) echo htmlspecialchars($d).'<br />';
402        if($t) echo '<em>'.htmlspecialchars($k).'</em>';
403        echo '</p>';
404    }
405    echo '</div>';
406}
407
408/**
409 * Print the media upload form if permissions are correct
410 *
411 * @author Andreas Gohr <andi@splitbrain.org>
412 */
413function media_uploadform($ns, $auth){
414    global $lang;
415
416    if($auth < AUTH_UPLOAD) return; //fixme print info on missing permissions?
417
418    ?>
419    <div class="upload"><?php echo $lang['mediaupload']?></div>
420    <form action="<?php echo DOKU_BASE?>lib/exe/mediamanager.php"
421          method="post" enctype="multipart/form-data" class="upload">
422        <input type="hidden" name="ns" value="<?php echo hsc($ns)?>" />
423
424
425        <?php echo $lang['txt_upload']?>:
426        <input type="file" name="upload" class="edit" id="upload__file" /><br />
427
428        <?php echo $lang['txt_filename']?>:
429        <input type="text" name="id" class="edit" id="upload__name" />
430        <input type="submit" class="button" value="<?php echo $lang['btn_upload']?>" accesskey="s" />
431
432        <?php if($auth >= AUTH_DELETE){?>
433            <br />
434            <label for="dw__ow">
435            <input type="checkbox" name="ow" value="1" id="dw__ow" /><?php echo $lang['txt_overwrt']?>
436            </label>
437        <?php }?>
438    </form>
439    <?php
440}
441
442
443
444/**
445 * Build a tree outline of available media namespaces
446 *
447 * @author Andreas Gohr <andi@splitbrain.org>
448 */
449function media_nstree($ns){
450    global $conf;
451    global $lang;
452
453    // currently selected namespace
454    $ns  = cleanID($ns);
455    if(empty($ns)){
456        $ns = dirname(str_replace(':','/',$ID));
457        if($ns == '.') $ns ='';
458    }
459    $ns  = utf8_encodeFN(str_replace(':','/',$ns));
460
461    $data = array();
462    search($data,$conf['mediadir'],'search_index',array('ns' => $ns));
463
464    // wrap a list with the root level around the other namespaces
465    $item = array( 'level' => 0, 'id' => '',
466                   'open' =>'true', 'label' => '['.$lang['mediaroot'].']');
467
468    echo '<ul class="idx">';
469    echo media_nstree_li($item);
470    echo media_nstree_item($item);
471    echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
472    echo '</li>';
473    echo '</ul>';
474}
475
476/**
477 * Userfunction for html_buildlist
478 *
479 * Prints a media namespace tree item
480 *
481 * @author Andreas Gohr <andi@splitbrain.org>
482 */
483function media_nstree_item($item){
484    $pos   = strrpos($item['id'], ':');
485    $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
486    if(!$item['label']) $item['label'] = $label;
487
488    $ret  = '';
489    $ret .= '<a href="'.DOKU_BASE.'lib/exe/mediamanager.php?ns='.idfilter($item['id']).'" class="idx_dir">';
490    $ret .= $item['label'];
491    $ret .= '</a>';
492    return $ret;
493}
494
495/**
496 * Userfunction for html_buildlist
497 *
498 * Prints a media namespace tree item opener
499 *
500 * @author Andreas Gohr <andi@splitbrain.org>
501 */
502function media_nstree_li($item){
503    $class='media level'.$item['level'];
504    if($item['open']){
505        $class .= ' open';
506        $img   = DOKU_BASE.'lib/images/minus.gif';
507    }else{
508        $class .= ' closed';
509        $img   = DOKU_BASE.'lib/images/plus.gif';
510    }
511    return '<li class="'.$class.'">'.
512           '<img src="'.$img.'" alt="*" />';
513}
514