diff options
author | sembrestels <sembrestels@riseup.net> | 2011-10-13 15:23:11 +0200 |
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committer | sembrestels <sembrestels@riseup.net> | 2011-10-13 15:23:11 +0200 |
commit | 74bd6999c5e5c23ebbf90dbb6bdaabbddd7594cf (patch) | |
tree | 834c120d692be288f261bcae169eedd3d6b31d74 /vendors/dokuwiki/inc/media.php | |
parent | f8be8643f0faadb2c0ce87d553b7b9d569af5afd (diff) | |
download | elgg-74bd6999c5e5c23ebbf90dbb6bdaabbddd7594cf.tar.gz elgg-74bd6999c5e5c23ebbf90dbb6bdaabbddd7594cf.tar.bz2 |
Rename lib/dokuwiki to vendors/dokuwiki
Diffstat (limited to 'vendors/dokuwiki/inc/media.php')
-rw-r--r-- | vendors/dokuwiki/inc/media.php | 1102 |
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']). + '&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 .= '×'; + $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 = '−'; + }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: */ |