Rename lib/dokuwiki to vendors/dokuwiki

1 files changed, 1102 insertions, 0 deletions

diff --git a/vendors/dokuwiki/inc/media.php b/vendors/dokuwiki/inc/media.php
new file mode 100644
index 000000000..9090dbd22
--- /dev/null
+++ b/vendors/dokuwiki/inc/media.php
@@ -0,0 +1,1102 @@
+<?php
+/**
+ * All output and handler function needed for the media management popup
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Andreas Gohr <andi@splitbrain.org>
+ */
+
+if(!defined('DOKU_INC')) die('meh.');
+if(!defined('NL')) define('NL',"\n");
+require_once(DOKU_INC.'inc/html.php');
+require_once(DOKU_INC.'inc/search.php');
+require_once(DOKU_INC.'inc/JpegMeta.php');
+
+/**
+ * Lists pages which currently use a media file selected for deletion
+ *
+ * References uses the same visual as search results and share
+ * their CSS tags except pagenames won't be links.
+ *
+ * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
+ */
+function media_filesinuse($data,$id){
+    global $lang;
+    echo '<h1>'.$lang['reference'].' <code>'.hsc(noNS($id)).'</code></h1>';
+    echo '<p>'.hsc($lang['ref_inuse']).'</p>';
+
+    $hidden=0; //count of hits without read permission
+    foreach($data as $row){
+        if(auth_quickaclcheck($row) >= AUTH_READ && isVisiblePage($row)){
+            echo '<div class="search_result">';
+            echo '<span class="mediaref_ref">'.hsc($row).'</span>';
+            echo '</div>';
+        }else
+            $hidden++;
+    }
+    if ($hidden){
+        print '<div class="mediaref_hidden">'.$lang['ref_hidden'].'</div>';
+    }
+}
+
+/**
+ * Handles the saving of image meta data
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_metasave($id,$auth,$data){
+    if($auth < AUTH_UPLOAD) return false;
+    if(!checkSecurityToken()) return false;
+    global $lang;
+    global $conf;
+    $src = mediaFN($id);
+
+    $meta = new JpegMeta($src);
+    $meta->_parseAll();
+
+    foreach($data as $key => $val){
+        $val=trim($val);
+        if(empty($val)){
+            $meta->deleteField($key);
+        }else{
+            $meta->setField($key,$val);
+        }
+    }
+
+    if($meta->save()){
+        if($conf['fperm']) chmod($src, $conf['fperm']);
+        msg($lang['metasaveok'],1);
+        return $id;
+    }else{
+        msg($lang['metasaveerr'],-1);
+        return false;
+    }
+}
+
+/**
+ * Display the form to edit image meta data
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_metaform($id,$auth){
+    if($auth < AUTH_UPLOAD) return false;
+    global $lang, $config_cascade;
+
+    // load the field descriptions
+    static $fields = null;
+    if(is_null($fields)){
+
+        foreach (array('default','local') as $config_group) {
+            if (empty($config_cascade['mediameta'][$config_group])) continue;
+            foreach ($config_cascade['mediameta'][$config_group] as $config_file) {
+                if(@file_exists($config_file)){
+                    include($config_file);
+                }
+            }
+        }
+    }
+
+    $src = mediaFN($id);
+
+    // output
+    echo '<h1>'.hsc(noNS($id)).'</h1>'.NL;
+    echo '<form action="'.DOKU_BASE.'lib/exe/mediamanager.php" accept-charset="utf-8" method="post" class="meta">'.NL;
+    formSecurityToken();
+    foreach($fields as $key => $field){
+        // get current value
+        $tags = array($field[0]);
+        if(is_array($field[3])) $tags = array_merge($tags,$field[3]);
+        $value = tpl_img_getTag($tags,'',$src);
+        $value = cleanText($value);
+
+        // prepare attributes
+        $p = array();
+        $p['class'] = 'edit';
+        $p['id']    = 'meta__'.$key;
+        $p['name']  = 'meta['.$field[0].']';
+
+        // put label
+        echo '<div class="metafield">';
+        echo '<label for="meta__'.$key.'">';
+        echo ($lang[$field[1]]) ? $lang[$field[1]] : $field[1];
+        echo ':</label>';
+
+        // put input field
+        if($field[2] == 'text'){
+            $p['value'] = $value;
+            $p['type']  = 'text';
+            $att = buildAttributes($p);
+            echo "<input $att/>".NL;
+        }else{
+            $att = buildAttributes($p);
+            echo "<textarea $att rows=\"6\" cols=\"50\">".formText($value).'</textarea>'.NL;
+        }
+        echo '</div>'.NL;
+    }
+    echo '<div class="buttons">'.NL;
+    echo '<input type="hidden" name="img" value="'.hsc($id).'" />'.NL;
+    echo '<input name="do[save]" type="submit" value="'.$lang['btn_save'].
+        '" title="'.$lang['btn_save'].' [S]" accesskey="s" class="button" />'.NL;
+    echo '<input name="do[cancel]" type="submit" value="'.$lang['btn_cancel'].
+        '" title="'.$lang['btn_cancel'].' [C]" accesskey="c" class="button" />'.NL;
+    echo '</div>'.NL;
+    echo '</form>'.NL;
+}
+
+/**
+ * Conveinience function to check if a media file is still in use
+ *
+ * @author Michael Klier <chi@chimeric.de>
+ */
+function media_inuse($id) {
+    global $conf;
+    $mediareferences = array();
+    if($conf['refcheck']){
+        require_once(DOKU_INC.'inc/fulltext.php');
+        $mediareferences = ft_mediause($id,$conf['refshow']);
+        if(!count($mediareferences)) {
+            return false;
+        } else {
+            return $mediareferences;
+        }
+    } else {
+        return false;
+    }
+}
+
+/**
+ * Handles media file deletions
+ *
+ * If configured, checks for media references before deletion
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @return mixed false on error, true on delete or array with refs
+ */
+function media_delete($id,$auth){
+    if($auth < AUTH_DELETE) return false;
+    if(!checkSecurityToken()) return false;
+    global $conf;
+    global $lang;
+
+    $file = mediaFN($id);
+
+    // trigger an event - MEDIA_DELETE_FILE
+    $data['id']   = $id;
+    $data['name'] = basename($file);
+    $data['path'] = $file;
+    $data['size'] = (@file_exists($file)) ? filesize($file) : 0;
+
+    $data['unl'] = false;
+    $data['del'] = false;
+    $evt = new Doku_Event('MEDIA_DELETE_FILE',$data);
+    if ($evt->advise_before()) {
+        $data['unl'] = @unlink($file);
+        if($data['unl']){
+            addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_DELETE);
+            $data['del'] = io_sweepNS($id,'mediadir');
+        }
+    }
+    $evt->advise_after();
+    unset($evt);
+
+    if($data['unl'] && $data['del']){
+        // current namespace was removed. redirecting to root ns passing msg along
+        send_redirect(DOKU_URL.'lib/exe/mediamanager.php?msg1='.
+                rawurlencode(sprintf(noNS($id),$lang['deletesucc'])));
+    }
+
+    return $data['unl'];
+}
+
+/**
+ * Handles media file uploads
+ *
+ * This generates an action event and delegates to _media_upload_action().
+ * Action plugins are allowed to pre/postprocess the uploaded file.
+ * (The triggered event is preventable.)
+ *
+ * Event data:
+ * $data[0]     fn_tmp: the temporary file name (read from $_FILES)
+ * $data[1]     fn: the file name of the uploaded file
+ * $data[2]     id: the future directory id of the uploaded file
+ * $data[3]     imime: the mimetype of the uploaded file
+ * $data[4]     overwrite: if an existing file is going to be overwritten
+ *
+ * @triggers MEDIA_UPLOAD_FINISH
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @author Michael Klier <chi@chimeric.de>
+ * @return mixed false on error, id of the new file on success
+ */
+function media_upload($ns,$auth){
+    if($auth < AUTH_UPLOAD) return false;
+    if(!checkSecurityToken()) return false;
+    require_once(DOKU_INC.'inc/confutils.php');
+    global $lang;
+    global $conf;
+
+    // get file and id
+    $id   = $_POST['id'];
+    $file = $_FILES['upload'];
+    if(empty($id)) $id = $file['name'];
+
+    // check for errors (messages are done in lib/exe/mediamanager.php)
+    if($file['error']) return false;
+
+    // check extensions
+    list($fext,$fmime,$dl) = mimetype($file['name']);
+    list($iext,$imime,$dl) = mimetype($id);
+    if($fext && !$iext){
+        // no extension specified in id - read original one
+        $id   .= '.'.$fext;
+        $imime = $fmime;
+    }elseif($fext && $fext != $iext){
+        // extension was changed, print warning
+        msg(sprintf($lang['mediaextchange'],$fext,$iext));
+    }
+
+    // get filename
+    $id   = cleanID($ns.':'.$id,false,true);
+    $fn   = mediaFN($id);
+
+    // get filetype regexp
+    $types = array_keys(getMimeTypes());
+    $types = array_map(create_function('$q','return preg_quote($q,"/");'),$types);
+    $regex = join('|',$types);
+
+    // because a temp file was created already
+    if(preg_match('/\.('.$regex.')$/i',$fn)){
+        //check for overwrite
+        $overwrite = @file_exists($fn);
+        if($overwrite && (!$_REQUEST['ow'] || $auth < AUTH_DELETE)){
+            msg($lang['uploadexist'],0);
+            return false;
+        }
+        // check for valid content
+        $ok = media_contentcheck($file['tmp_name'],$imime);
+        if($ok == -1){
+            msg(sprintf($lang['uploadbadcontent'],".$iext"),-1);
+            return false;
+        }elseif($ok == -2){
+            msg($lang['uploadspam'],-1);
+            return false;
+        }elseif($ok == -3){
+            msg($lang['uploadxss'],-1);
+            return false;
+        }
+
+        // prepare event data
+        $data[0] = $file['tmp_name'];
+        $data[1] = $fn;
+        $data[2] = $id;
+        $data[3] = $imime;
+        $data[4] = $overwrite;
+
+        // trigger event
+        return trigger_event('MEDIA_UPLOAD_FINISH', $data, '_media_upload_action', true);
+
+    }else{
+        msg($lang['uploadwrong'],-1);
+    }
+    return false;
+}
+
+/**
+ * Callback adapter for media_upload_finish()
+ * @author Michael Klier <chi@chimeric.de>
+ */
+function _media_upload_action($data) {
+    // fixme do further sanity tests of given data?
+    if(is_array($data) && count($data)===5) {
+        return media_upload_finish($data[0], $data[1], $data[2], $data[3], $data[4]);
+    } else {
+        return false; //callback error
+    }
+}
+
+/**
+ * Saves an uploaded media file
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @author Michael Klier <chi@chimeric.de>
+ */
+function media_upload_finish($fn_tmp, $fn, $id, $imime, $overwrite) {
+    global $conf;
+    global $lang;
+
+    // prepare directory
+    io_createNamespace($id, 'media');
+
+    if(move_uploaded_file($fn_tmp, $fn)) {
+        // Set the correct permission here.
+        // Always chmod media because they may be saved with different permissions than expected from the php umask.
+        // (Should normally chmod to $conf['fperm'] only if $conf['fperm'] is set.)
+        chmod($fn, $conf['fmode']);
+        msg($lang['uploadsucc'],1);
+        media_notify($id,$fn,$imime);
+        // add a log entry to the media changelog
+        if ($overwrite) {
+            addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_EDIT);
+        } else {
+            addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_CREATE);
+        }
+        return $id;
+    }else{
+        msg($lang['uploadfail'],-1);
+    }
+}
+
+/**
+ * This function checks if the uploaded content is really what the
+ * mimetype says it is. We also do spam checking for text types here.
+ *
+ * We need to do this stuff because we can not rely on the browser
+ * to do this check correctly. Yes, IE is broken as usual.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @link   http://www.splitbrain.org/blog/2007-02/12-internet_explorer_facilitates_cross_site_scripting
+ * @fixme  check all 26 magic IE filetypes here?
+ */
+function media_contentcheck($file,$mime){
+    global $conf;
+    if($conf['iexssprotect']){
+        $fh = @fopen($file, 'rb');
+        if($fh){
+            $bytes = fread($fh, 256);
+            fclose($fh);
+            if(preg_match('/<(script|a|img|html|body|iframe)[\s>]/i',$bytes)){
+                return -3;
+            }
+        }
+    }
+    if(substr($mime,0,6) == 'image/'){
+        $info = @getimagesize($file);
+        if($mime == 'image/gif' && $info[2] != 1){
+            return -1;
+        }elseif($mime == 'image/jpeg' && $info[2] != 2){
+            return -1;
+        }elseif($mime == 'image/png' && $info[2] != 3){
+            return -1;
+        }
+        # fixme maybe check other images types as well
+    }elseif(substr($mime,0,5) == 'text/'){
+        global $TEXT;
+        $TEXT = io_readFile($file);
+        if(checkwordblock()){
+            return -2;
+        }
+    }
+    return 0;
+}
+
+/**
+ * Send a notify mail on uploads
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_notify($id,$file,$mime){
+    global $lang;
+    global $conf;
+    if(empty($conf['notify'])) return; //notify enabled?
+
+    $ip = clientIP();
+
+    $text = rawLocale('uploadmail');
+    $text = str_replace('@DATE@',dformat(),$text);
+    $text = str_replace('@BROWSER@',$_SERVER['HTTP_USER_AGENT'],$text);
+    $text = str_replace('@IPADDRESS@',$ip,$text);
+    $text = str_replace('@HOSTNAME@',gethostsbyaddrs($ip),$text);
+    $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
+    $text = str_replace('@USER@',$_SERVER['REMOTE_USER'],$text);
+    $text = str_replace('@MIME@',$mime,$text);
+    $text = str_replace('@MEDIA@',ml($id,'',true,'&',true),$text);
+    $text = str_replace('@SIZE@',filesize_h(filesize($file)),$text);
+
+    $from = $conf['mailfrom'];
+    $from = str_replace('@USER@',$_SERVER['REMOTE_USER'],$from);
+    $from = str_replace('@NAME@',$INFO['userinfo']['name'],$from);
+    $from = str_replace('@MAIL@',$INFO['userinfo']['mail'],$from);
+
+    $subject = '['.$conf['title'].'] '.$lang['mail_upload'].' '.$id;
+
+    mail_send($conf['notify'],$subject,$text,$from);
+}
+
+/**
+ * List all files in a given Media namespace
+ */
+function media_filelist($ns,$auth=null,$jump=''){
+    global $conf;
+    global $lang;
+    $ns = cleanID($ns);
+
+    // check auth our self if not given (needed for ajax calls)
+    if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*");
+
+    echo '<h1 id="media__ns">:'.hsc($ns).'</h1>'.NL;
+
+    if($auth < AUTH_READ){
+        // FIXME: print permission warning here instead?
+        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
+    }else{
+        media_uploadform($ns, $auth);
+
+        $dir = utf8_encodeFN(str_replace(':','/',$ns));
+        $data = array();
+        search($data,$conf['mediadir'],'search_media',
+                array('showmsg'=>true,'depth'=>1),$dir);
+
+        if(!count($data)){
+            echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
+        }else foreach($data as $item){
+            media_printfile($item,$auth,$jump);
+        }
+    }
+    media_searchform($ns);
+}
+
+/**
+ * List all files found by the search request
+ *
+ * @author Tobias Sarnowski <sarnowski@cosmocode.de>
+ * @author Andreas Gohr <gohr@cosmocode.de>
+ * @triggers MEDIA_SEARCH
+ */
+function media_searchlist($query,$ns,$auth=null){
+    global $conf;
+    global $lang;
+    $ns = cleanID($ns);
+
+    if ($query) {
+        $evdata = array(
+                'ns'    => $ns,
+                'data'  => array(),
+                'query' => $query
+                );
+        $evt = new Doku_Event('MEDIA_SEARCH', $evdata);
+        if ($evt->advise_before()) {
+            $dir = utf8_encodeFN(str_replace(':','/',$evdata['ns']));
+            $pattern = '/'.preg_quote($evdata['query'],'/').'/i';
+            search($evdata['data'],
+                    $conf['mediadir'],
+                    'search_media',
+                    array('showmsg'=>false,'pattern'=>$pattern),
+                    $dir);
+        }
+        $evt->advise_after();
+        unset($evt);
+    }
+
+    echo '<h1 id="media__ns">'.sprintf($lang['searchmedia_in'],hsc($ns).':*').'</h1>'.NL;
+    media_searchform($ns,$query);
+
+    if(!count($evdata['data'])){
+        echo '<div class="nothing">'.$lang['nothingfound'].'</div>'.NL;
+    }else foreach($evdata['data'] as $item){
+        media_printfile($item,$item['perm'],'',true);
+    }
+}
+
+/**
+ * Print action links for a file depending on filetype
+ * and available permissions
+ */
+function media_fileactions($item,$auth){
+    global $lang;
+
+    // view button
+    $link = ml($item['id'],'',true);
+    echo ' <a href="'.$link.'" target="_blank"><img src="'.DOKU_MEDIA.'lib/images/magnifier.png" '.
+        'alt="'.$lang['mediaview'].'" title="'.$lang['mediaview'].'" class="btn" /></a>';
+
+    // no further actions if not writable
+    if(!$item['writable']) return;
+
+    // delete button
+    if($auth >= AUTH_DELETE){
+        echo ' <a href="'.DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']).
+            '&amp;sectok='.getSecurityToken().'" class="btn_media_delete" title="'.$item['id'].'">'.
+            '<img src="'.DOKU_MEDIA.'lib/images/trash.png" alt="'.$lang['btn_delete'].'" '.
+            'title="'.$lang['btn_delete'].'" class="btn" /></a>';
+    }
+
+    // edit button
+    if($auth >= AUTH_UPLOAD && $item['isimg'] && $item['meta']->getField('File.Mime') == 'image/jpeg'){
+        echo ' <a href="'.DOKU_BASE.'lib/exe/mediamanager.php?edit='.rawurlencode($item['id']).'">'.
+            '<img src="'.DOKU_MEDIA.'lib/images/pencil.png" alt="'.$lang['metaedit'].'" '.
+            'title="'.$lang['metaedit'].'" class="btn" /></a>';
+    }
+
+}
+
+/**
+ * Formats and prints one file in the list
+ */
+function media_printfile($item,$auth,$jump,$display_namespace=false){
+    global $lang;
+    global $conf;
+
+    // Prepare zebra coloring
+    // I always wanted to use this variable name :-D
+    static $twibble = 1;
+    $twibble *= -1;
+    $zebra = ($twibble == -1) ? 'odd' : 'even';
+
+    // Automatically jump to recent action
+    if($jump == $item['id']) {
+        $jump = ' id="scroll__here" ';
+    }else{
+        $jump = '';
+    }
+
+    // Prepare fileicons
+    list($ext,$mime,$dl) = mimetype($item['file'],false);
+    $class = preg_replace('/[^_\-a-z0-9]+/i','_',$ext);
+    $class = 'select mediafile mf_'.$class;
+
+    // Prepare filename
+    $file = utf8_decodeFN($item['file']);
+
+    // Prepare info
+    $info = '';
+    if($item['isimg']){
+        $info .= (int) $item['meta']->getField('File.Width');
+        $info .= '&#215;';
+        $info .= (int) $item['meta']->getField('File.Height');
+        $info .= ' ';
+    }
+    $info .= '<i>'.dformat($item['mtime']).'</i>';
+    $info .= ' ';
+    $info .= filesize_h($item['size']);
+
+    // output
+    echo '<div class="'.$zebra.'"'.$jump.'>'.NL;
+    if (!$display_namespace) {
+        echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($file).'</a> ';
+    } else {
+        echo '<a name="h_:'.$item['id'].'" class="'.$class.'">'.hsc($item['id']).'</a><br/>';
+    }
+    echo '<span class="info">('.$info.')</span>'.NL;
+    media_fileactions($item,$auth);
+    echo '<div class="example" id="ex_'.str_replace(':','_',$item['id']).'">';
+    echo $lang['mediausage'].' <code>{{:'.$item['id'].'}}</code>';
+    echo '</div>';
+    if($item['isimg']) media_printimgdetail($item);
+    echo '<div class="clearer"></div>'.NL;
+    echo '</div>'.NL;
+}
+
+/**
+ * Prints a thumbnail and metainfos
+ */
+function media_printimgdetail($item){
+    // prepare thumbnail
+    $w = (int) $item['meta']->getField('File.Width');
+    $h = (int) $item['meta']->getField('File.Height');
+    if($w>120 || $h>120){
+        $ratio = $item['meta']->getResizeRatio(120);
+        $w = floor($w * $ratio);
+        $h = floor($h * $ratio);
+    }
+    $src = ml($item['id'],array('w'=>$w,'h'=>$h));
+    $p = array();
+    $p['width']  = $w;
+    $p['height'] = $h;
+    $p['alt']    = $item['id'];
+    $p['class']  = 'thumb';
+    $att = buildAttributes($p);
+
+    // output
+    echo '<div class="detail">';
+    echo '<div class="thumb">';
+    echo '<a name="d_:'.$item['id'].'" class="select">';
+    echo '<img src="'.$src.'" '.$att.' />';
+    echo '</a>';
+    echo '</div>';
+
+    // read EXIF/IPTC data
+    $t = $item['meta']->getField(array('IPTC.Headline','xmp.dc:title'));
+    $d = $item['meta']->getField(array('IPTC.Caption','EXIF.UserComment',
+                'EXIF.TIFFImageDescription',
+                'EXIF.TIFFUserComment'));
+    if(utf8_strlen($d) > 250) $d = utf8_substr($d,0,250).'...';
+    $k = $item['meta']->getField(array('IPTC.Keywords','IPTC.Category','xmp.dc:subject'));
+
+    // print EXIF/IPTC data
+    if($t || $d || $k ){
+        echo '<p>';
+        if($t) echo '<strong>'.htmlspecialchars($t).'</strong><br />';
+        if($d) echo htmlspecialchars($d).'<br />';
+        if($t) echo '<em>'.htmlspecialchars($k).'</em>';
+        echo '</p>';
+    }
+    echo '</div>';
+}
+
+/**
+ * Print the media upload form if permissions are correct
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_uploadform($ns, $auth){
+    global $lang;
+
+    if($auth < AUTH_UPLOAD) return; //fixme print info on missing permissions?
+
+    // The default HTML upload form
+    $form = new Doku_Form(array('id'      => 'dw__upload',
+                                'action'  => DOKU_BASE.'lib/exe/mediamanager.php',
+                                'enctype' => 'multipart/form-data'));
+    $form->addElement('<div class="upload">' . $lang['mediaupload'] . '</div>');
+    $form->addElement(formSecurityToken());
+    $form->addHidden('ns', hsc($ns));
+    $form->addElement(form_makeOpenTag('p'));
+    $form->addElement(form_makeFileField('upload', $lang['txt_upload'].':', 'upload__file'));
+    $form->addElement(form_makeCloseTag('p'));
+    $form->addElement(form_makeOpenTag('p'));
+    $form->addElement(form_makeTextField('id', '', $lang['txt_filename'].':', 'upload__name'));
+    $form->addElement(form_makeButton('submit', '', $lang['btn_upload']));
+    $form->addElement(form_makeCloseTag('p'));
+
+    if($auth >= AUTH_DELETE){
+        $form->addElement(form_makeOpenTag('p'));
+        $form->addElement(form_makeCheckboxField('ow', 1, $lang['txt_overwrt'], 'dw__ow', 'check'));
+        $form->addElement(form_makeCloseTag('p'));
+    }
+    html_form('upload', $form);
+
+    // prepare flashvars for multiupload
+    $opt = array(
+            'L_gridname'  => $lang['mu_gridname'] ,
+            'L_gridsize'  => $lang['mu_gridsize'] ,
+            'L_gridstat'  => $lang['mu_gridstat'] ,
+            'L_namespace' => $lang['mu_namespace'] ,
+            'L_overwrite' => $lang['txt_overwrt'],
+            'L_browse'    => $lang['mu_browse'],
+            'L_upload'    => $lang['btn_upload'],
+            'L_toobig'    => $lang['mu_toobig'],
+            'L_ready'     => $lang['mu_ready'],
+            'L_done'      => $lang['mu_done'],
+            'L_fail'      => $lang['mu_fail'],
+            'L_authfail'  => $lang['mu_authfail'],
+            'L_progress'  => $lang['mu_progress'],
+            'L_filetypes' => $lang['mu_filetypes'],
+            'L_info'      => $lang['mu_info'],
+            'L_lasterr'   => $lang['mu_lasterr'],
+
+            'O_ns'        => ":$ns",
+            'O_backend'   => 'mediamanager.php?'.session_name().'='.session_id(),
+            'O_maxsize'   => php_to_byte(ini_get('upload_max_filesize')),
+            'O_extensions'=> join('|',array_keys(getMimeTypes())),
+            'O_overwrite' => ($auth >= AUTH_DELETE),
+            'O_sectok'    => getSecurityToken(),
+            'O_authtok'   => auth_createToken(),
+            );
+    $var = buildURLparams($opt);
+    // output the flash uploader
+    ?>
+        <div id="dw__flashupload" style="display:none">
+        <div class="upload"><?php echo $lang['mu_intro']?></div>
+        <?php echo html_flashobject('multipleUpload.swf','500','190',null,$opt); ?>
+        </div>
+        <?php
+}
+
+/**
+ * Print the search field form
+ *
+ * @author Tobias Sarnowski <sarnowski@cosmocode.de>
+ */
+function media_searchform($ns,$query=''){
+    global $lang;
+
+    // The default HTML search form
+    $form = new Doku_Form(array('id' => 'dw__mediasearch', 'action' => DOKU_BASE.'lib/exe/mediamanager.php'));
+    $form->addElement('<div class="upload">' . $lang['mediasearch'] . '</div>');
+    $form->addElement(formSecurityToken());
+    $form->addHidden('ns', $ns);
+    $form->addHidden('do', 'searchlist');
+    $form->addElement(form_makeOpenTag('p'));
+    $form->addElement(form_makeTextField('q', $query,$lang['searchmedia'],'','',array('title'=>sprintf($lang['searchmedia_in'],hsc($ns).':*'))));
+    $form->addElement(form_makeButton('submit', '', $lang['btn_search']));
+    $form->addElement(form_makeCloseTag('p'));
+    html_form('searchmedia', $form);
+}
+
+/**
+ * Build a tree outline of available media namespaces
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_nstree($ns){
+    global $conf;
+    global $lang;
+
+    // currently selected namespace
+    $ns  = cleanID($ns);
+    if(empty($ns)){
+        $ns = dirname(str_replace(':','/',$ID));
+        if($ns == '.') $ns ='';
+    }
+    $ns  = utf8_encodeFN(str_replace(':','/',$ns));
+
+    $data = array();
+    search($data,$conf['mediadir'],'search_index',array('ns' => $ns, 'nofiles' => true));
+
+    // wrap a list with the root level around the other namespaces
+    $item = array( 'level' => 0, 'id' => '',
+            'open' =>'true', 'label' => '['.$lang['mediaroot'].']');
+
+    echo '<ul class="idx">';
+    echo media_nstree_li($item);
+    echo media_nstree_item($item);
+    echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
+    echo '</li>';
+    echo '</ul>';
+}
+
+/**
+ * Userfunction for html_buildlist
+ *
+ * Prints a media namespace tree item
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_nstree_item($item){
+    $pos   = strrpos($item['id'], ':');
+    $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
+    if(!$item['label']) $item['label'] = $label;
+
+    $ret  = '';
+    $ret .= '<a href="'.DOKU_BASE.'lib/exe/mediamanager.php?ns='.idfilter($item['id']).'" class="idx_dir">';
+    $ret .= $item['label'];
+    $ret .= '</a>';
+    return $ret;
+}
+
+/**
+ * Userfunction for html_buildlist
+ *
+ * Prints a media namespace tree item opener
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_nstree_li($item){
+    $class='media level'.$item['level'];
+    if($item['open']){
+        $class .= ' open';
+        $img   = DOKU_BASE.'lib/images/minus.gif';
+        $alt   = '&minus;';
+    }else{
+        $class .= ' closed';
+        $img   = DOKU_BASE.'lib/images/plus.gif';
+        $alt   = '+';
+    }
+    return '<li class="'.$class.'">'.
+        '<img src="'.$img.'" alt="'.$alt.'" />';
+}
+
+/**
+ * Resizes the given image to the given size
+ *
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ */
+function media_resize_image($file, $ext, $w, $h=0){
+    global $conf;
+
+    $info = @getimagesize($file); //get original size
+    if($info == false) return $file; // that's no image - it's a spaceship!
+
+    if(!$h) $h = round(($w * $info[1]) / $info[0]);
+
+    // we wont scale up to infinity
+    if($w > 2000 || $h > 2000) return $file;
+
+    //cache
+    $local = getCacheName($file,'.media.'.$w.'x'.$h.'.'.$ext);
+    $mtime = @filemtime($local); // 0 if not exists
+
+    if( $mtime > filemtime($file) ||
+            media_resize_imageIM($ext,$file,$info[0],$info[1],$local,$w,$h) ||
+            media_resize_imageGD($ext,$file,$info[0],$info[1],$local,$w,$h) ){
+        if($conf['fperm']) chmod($local, $conf['fperm']);
+        return $local;
+    }
+    //still here? resizing failed
+    return $file;
+}
+
+/**
+ * Crops the given image to the wanted ratio, then calls media_resize_image to scale it
+ * to the wanted size
+ *
+ * Crops are centered horizontally but prefer the upper third of an vertical
+ * image because most pics are more interesting in that area (rule of thirds)
+ *
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ */
+function media_crop_image($file, $ext, $w, $h=0){
+    global $conf;
+
+    if(!$h) $h = $w;
+    $info = @getimagesize($file); //get original size
+    if($info == false) return $file; // that's no image - it's a spaceship!
+
+    // calculate crop size
+    $fr = $info[0]/$info[1];
+    $tr = $w/$h;
+    if($tr >= 1){
+        if($tr > $fr){
+            $cw = $info[0];
+            $ch = (int) $info[0]/$tr;
+        }else{
+            $cw = (int) $info[1]*$tr;
+            $ch = $info[1];
+        }
+    }else{
+        if($tr < $fr){
+            $cw = (int) $info[1]*$tr;
+            $ch = $info[1];
+        }else{
+            $cw = $info[0];
+            $ch = (int) $info[0]/$tr;
+        }
+    }
+    // calculate crop offset
+    $cx = (int) ($info[0]-$cw)/2;
+    $cy = (int) ($info[1]-$ch)/3;
+
+    //cache
+    $local = getCacheName($file,'.media.'.$cw.'x'.$ch.'.crop.'.$ext);
+    $mtime = @filemtime($local); // 0 if not exists
+
+    if( $mtime > filemtime($file) ||
+            media_crop_imageIM($ext,$file,$info[0],$info[1],$local,$cw,$ch,$cx,$cy) ||
+            media_resize_imageGD($ext,$file,$cw,$ch,$local,$cw,$ch,$cx,$cy) ){
+        if($conf['fperm']) chmod($local, $conf['fperm']);
+        return media_resize_image($local,$ext, $w, $h);
+    }
+
+    //still here? cropping failed
+    return media_resize_image($file,$ext, $w, $h);
+}
+
+/**
+ * Download a remote file and return local filename
+ *
+ * returns false if download fails. Uses cached file if available and
+ * wanted
+ *
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ * @author  Pavel Vitis <Pavel.Vitis@seznam.cz>
+ */
+function media_get_from_URL($url,$ext,$cache){
+    global $conf;
+
+    // if no cache or fetchsize just redirect
+    if ($cache==0)           return false;
+    if (!$conf['fetchsize']) return false;
+
+    $local = getCacheName(strtolower($url),".media.$ext");
+    $mtime = @filemtime($local); // 0 if not exists
+
+    //decide if download needed:
+    if( ($mtime == 0) ||                           // cache does not exist
+            ($cache != -1 && $mtime < time()-$cache)   // 'recache' and cache has expired
+      ){
+        if(media_image_download($url,$local)){
+            return $local;
+        }else{
+            return false;
+        }
+    }
+
+    //if cache exists use it else
+    if($mtime) return $local;
+
+    //else return false
+    return false;
+}
+
+/**
+ * Download image files
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_image_download($url,$file){
+    global $conf;
+    $http = new DokuHTTPClient();
+    $http->max_bodysize = $conf['fetchsize'];
+    $http->timeout = 25; //max. 25 sec
+    $http->header_regexp = '!\r\nContent-Type: image/(jpe?g|gif|png)!i';
+
+    $data = $http->get($url);
+    if(!$data) return false;
+
+    $fileexists = @file_exists($file);
+    $fp = @fopen($file,"w");
+    if(!$fp) return false;
+    fwrite($fp,$data);
+    fclose($fp);
+    if(!$fileexists and $conf['fperm']) chmod($file, $conf['fperm']);
+
+    // check if it is really an image
+    $info = @getimagesize($file);
+    if(!$info){
+        @unlink($file);
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * resize images using external ImageMagick convert program
+ *
+ * @author Pavel Vitis <Pavel.Vitis@seznam.cz>
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_resize_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h){
+    global $conf;
+
+    // check if convert is configured
+    if(!$conf['im_convert']) return false;
+
+    // prepare command
+    $cmd  = $conf['im_convert'];
+    $cmd .= ' -resize '.$to_w.'x'.$to_h.'!';
+    if ($ext == 'jpg' || $ext == 'jpeg') {
+        $cmd .= ' -quality '.$conf['jpg_quality'];
+    }
+    $cmd .= " $from $to";
+
+    @exec($cmd,$out,$retval);
+    if ($retval == 0) return true;
+    return false;
+}
+
+/**
+ * crop images using external ImageMagick convert program
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function media_crop_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x,$ofs_y){
+    global $conf;
+
+    // check if convert is configured
+    if(!$conf['im_convert']) return false;
+
+    // prepare command
+    $cmd  = $conf['im_convert'];
+    $cmd .= ' -crop '.$to_w.'x'.$to_h.'+'.$ofs_x.'+'.$ofs_y;
+    if ($ext == 'jpg' || $ext == 'jpeg') {
+        $cmd .= ' -quality '.$conf['jpg_quality'];
+    }
+    $cmd .= " $from $to";
+
+    @exec($cmd,$out,$retval);
+    if ($retval == 0) return true;
+    return false;
+}
+
+/**
+ * resize or crop images using PHP's libGD support
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @author Sebastian Wienecke <s_wienecke@web.de>
+ */
+function media_resize_imageGD($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x=0,$ofs_y=0){
+    global $conf;
+
+    if($conf['gdlib'] < 1) return false; //no GDlib available or wanted
+
+    // check available memory
+    if(!is_mem_available(($from_w * $from_h * 4) + ($to_w * $to_h * 4))){
+        return false;
+    }
+
+    // create an image of the given filetype
+    if ($ext == 'jpg' || $ext == 'jpeg'){
+        if(!function_exists("imagecreatefromjpeg")) return false;
+        $image = @imagecreatefromjpeg($from);
+    }elseif($ext == 'png') {
+        if(!function_exists("imagecreatefrompng")) return false;
+        $image = @imagecreatefrompng($from);
+
+    }elseif($ext == 'gif') {
+        if(!function_exists("imagecreatefromgif")) return false;
+        $image = @imagecreatefromgif($from);
+    }
+    if(!$image) return false;
+
+    if(($conf['gdlib']>1) && function_exists("imagecreatetruecolor") && $ext != 'gif'){
+        $newimg = @imagecreatetruecolor ($to_w, $to_h);
+    }
+    if(!$newimg) $newimg = @imagecreate($to_w, $to_h);
+    if(!$newimg){
+        imagedestroy($image);
+        return false;
+    }
+
+    //keep png alpha channel if possible
+    if($ext == 'png' && $conf['gdlib']>1 && function_exists('imagesavealpha')){
+        imagealphablending($newimg, false);
+        imagesavealpha($newimg,true);
+    }
+
+    //keep gif transparent color if possible
+    if($ext == 'gif' && function_exists('imagefill') && function_exists('imagecolorallocate')) {
+        if(function_exists('imagecolorsforindex') && function_exists('imagecolortransparent')) {
+            $transcolorindex = @imagecolortransparent($image);
+            if($transcolorindex >= 0 ) { //transparent color exists
+                $transcolor = @imagecolorsforindex($image, $transcolorindex);
+                $transcolorindex = @imagecolorallocate($newimg, $transcolor['red'], $transcolor['green'], $transcolor['blue']);
+                @imagefill($newimg, 0, 0, $transcolorindex);
+                @imagecolortransparent($newimg, $transcolorindex);
+            }else{ //filling with white
+                $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
+                @imagefill($newimg, 0, 0, $whitecolorindex);
+            }
+        }else{ //filling with white
+            $whitecolorindex = @imagecolorallocate($newimg, 255, 255, 255);
+            @imagefill($newimg, 0, 0, $whitecolorindex);
+        }
+    }
+
+    //try resampling first
+    if(function_exists("imagecopyresampled")){
+        if(!@imagecopyresampled($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h)) {
+            imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
+        }
+    }else{
+        imagecopyresized($newimg, $image, 0, 0, $ofs_x, $ofs_y, $to_w, $to_h, $from_w, $from_h);
+    }
+
+    $okay = false;
+    if ($ext == 'jpg' || $ext == 'jpeg'){
+        if(!function_exists('imagejpeg')){
+            $okay = false;
+        }else{
+            $okay = imagejpeg($newimg, $to, $conf['jpg_quality']);
+        }
+    }elseif($ext == 'png') {
+        if(!function_exists('imagepng')){
+            $okay = false;
+        }else{
+            $okay =  imagepng($newimg, $to);
+        }
+    }elseif($ext == 'gif') {
+        if(!function_exists('imagegif')){
+            $okay = false;
+        }else{
+            $okay = imagegif($newimg, $to);
+        }
+    }
+
+    // destroy GD image ressources
+    if($image) imagedestroy($image);
+    if($newimg) imagedestroy($newimg);
+
+    return $okay;
+}
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */