'.$lang['reference'].' '.hsc(noNS($id)).'

'.hsc($lang['ref_inuse']).'

'; echo ''.hsc($row).''; echo '

'.$lang['ref_hidden'].'

*/ 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 */ 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 '

'.hsc(noNS($id)).'

'.NL; echo '

'.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 '

'; echo ''; echo ($lang[$field[1]]) ? $lang[$field[1]] : $field[1]; echo ':'; // put input field if($field[2] == 'text'){ $p['value'] = $value; $p['type'] = 'text'; $att = buildAttributes($p); echo "".NL; }else{ $att = buildAttributes($p); echo "'.NL; } echo '

'.NL; } echo '

'.NL; echo ''.NL; echo ''.NL; echo ''.NL; echo '

'.NL; echo '

'.NL; } /** * Convenience function to check if a media file is still in use * * @author Michael Klier */ function media_inuse($id) { global $conf; $mediareferences = array(); if($conf['refcheck']){ $mediareferences = ft_mediause($id,$conf['refshow']); if(!count($mediareferences)) { return false; } else { return $mediareferences; } } else { return false; } } define('DOKU_MEDIA_DELETED', 1); define('DOKU_MEDIA_NOT_AUTH', 2); define('DOKU_MEDIA_INUSE', 4); define('DOKU_MEDIA_EMPTY_NS', 8); /** * Handles media file deletions * * If configured, checks for media references before deletion * * @author Andreas Gohr * @return int One of: 0, DOKU_MEDIA_DELETED, DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS, DOKU_MEDIA_NOT_AUTH, DOKU_MEDIA_INUSE */ function media_delete($id,$auth){ if($auth < AUTH_DELETE) return DOKU_MEDIA_NOT_AUTH; if(media_inuse($id)) return DOKU_MEDIA_INUSE; $file = mediaFN($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']){ return DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS; } return $data['unl'] ? DOKU_MEDIA_DELETED : 0; } /** * Handles media file uploads * * @author Andreas Gohr * @author Michael Klier * @return mixed false on error, id of the new file on success */ function media_upload($ns,$auth){ if(!checkSecurityToken()) return false; global $lang; // 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)); } $res = media_save(array('name' => $file['tmp_name'], 'mime' => $imime, 'ext' => $iext), $ns.':'.$id, $_REQUEST['ow'], $auth, 'move_uploaded_file'); if (is_array($res)) { msg($res[0], $res[1]); return false; } return $res; } /** * 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 * $data[4] overwrite: if an existing file is going to be overwritten * * @triggers MEDIA_UPLOAD_FINISH */ function media_save($file, $id, $ow, $auth, $move) { if($auth < AUTH_UPLOAD) { return array("You don't have permissions to upload files.", -1); } if (!isset($file['mime']) || !isset($file['ext'])) { list($ext, $mime) = mimetype($id); if (!isset($file['mime'])) { $file['mime'] = $mime; } if (!isset($file['ext'])) { $file['ext'] = $ext; } } global $lang; // get filename $id = cleanID($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',$fn)) { return array($lang['uploadwrong'],-1); } //check for overwrite $overwrite = @file_exists($fn); if($overwrite && (!$ow || $auth < AUTH_DELETE)) { return array($lang['uploadexist'], 0); } // check for valid content $ok = media_contentcheck($file['name'], $file['mime']); if($ok == -1){ return array(sprintf($lang['uploadbadcontent'],'.' . $file['ext']),-1); }elseif($ok == -2){ return array($lang['uploadspam'],-1); }elseif($ok == -3){ return array($lang['uploadxss'],-1); } // prepare event data $data[0] = $file['name']; $data[1] = $fn; $data[2] = $id; $data[3] = $file['mime']; $data[4] = $overwrite; $data[5] = $move; // trigger event return trigger_event('MEDIA_UPLOAD_FINISH', $data, '_media_upload_action', true); } /** * Callback adapter for media_upload_finish() * @author Michael Klier */ function _media_upload_action($data) { // fixme do further sanity tests of given data? if(is_array($data) && count($data)===6) { return media_upload_finish($data[0], $data[1], $data[2], $data[3], $data[4], $data[5]); } else { return false; //callback error } } /** * Saves an uploaded media file * * @author Andreas Gohr * @author Michael Klier */ function media_upload_finish($fn_tmp, $fn, $id, $imime, $overwrite, $move = 'move_uploaded_file') { global $conf; global $lang; // prepare directory io_createNamespace($id, 'media'); if($move($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 $id; }else{ return array($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 * @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 */ function media_notify($id,$file,$mime){ global $lang; global $conf; global $INFO; if(empty($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)),$text); if(empty($conf['mailprefix'])) { $subject = '['.$conf['title'].'] '.$lang['mail_upload'].' '.$id; } else { $subject = '['.$conf['mailprefix'].'] '.$lang['mail_upload'].' '.$id; } mail_send($conf['notify'],$subject,$text,$conf['mailfrom']); } /** * 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 '

:'.hsc($ns).'

'.NL; if($auth < AUTH_READ){ // FIXME: print permission warning here instead? echo '

'.$lang['nothingfound'].'

'.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 '

'.$lang['nothingfound'].'

'.NL; }else foreach($data as $item){ media_printfile($item,$auth,$jump); } } media_searchform($ns); } /** * List all files found by the search request * * @author Tobias Sarnowski * @author Andreas Gohr * @triggers MEDIA_SEARCH */ function media_searchlist($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 '

'.sprintf($lang['searchmedia_in'],hsc($ns).':*').'

'.NL; media_searchform($ns,$query); if(!count($evdata['data'])){ echo '

'.$lang['nothingfound'].'

'.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 '

'; // no further actions if not writable if(!$item['writable']) return; // delete button if($auth >= AUTH_DELETE){ echo ' '. '

'; } // edit button if($auth >= AUTH_UPLOAD && $item['isimg'] && $item['meta']->getField('File.Mime') == 'image/jpeg'){ echo ' '. '

'; } } /** * 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 .= ' '; } $info .= ''.dformat($item['mtime']).''; $info .= ' '; $info .= filesize_h($item['size']); // output echo '

'.NL; if (!$display_namespace) { echo ''.hsc($file).' '; } else { echo ''.hsc($item['id']).'
'; } echo '('.$info.')'.NL; media_fileactions($item,$auth); echo '

'; echo $lang['mediausage'].' {{:'.$item['id'].'}}'; echo '

'; if($item['isimg']) media_printimgdetail($item); echo '

'.NL; echo '

'.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 '

'; echo '

'; echo ''; echo '

'; // 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 '

'; if($t) echo ''.htmlspecialchars($t).'
'; if($d) echo htmlspecialchars($d).'
'; if($t) echo ''.htmlspecialchars($k).''; echo '

'; } echo '

'; } /** * Print the media upload form if permissions are correct * * @author Andreas Gohr */ 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('

' . $lang['mediaupload'] . '

'); $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 ?> */ 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('

' . $lang['mediasearch'] . '

'); $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', $form); } /** * Build a tree outline of available media namespaces * * @author Andreas Gohr */ function media_nstree($ns){ global $conf; global $lang; // currently selected namespace $ns = cleanID($ns); if(empty($ns)){ global $ID; $ns = dirname(str_replace(':','/',$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 '

'; echo media_nstree_li($item); echo media_nstree_item($item); echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li'); echo ''; echo ''; } /** * Userfunction for html_buildlist * * Prints a media namespace tree item * * @author Andreas Gohr */ function media_nstree_item($item){ $pos = strrpos($item['id'], ':'); $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0); if(!$item['label']) $item['label'] = $label; $ret = ''; $ret .= ''; $ret .= $item['label']; $ret .= ''; return $ret; } /** * Userfunction for html_buildlist * * Prints a media namespace tree item opener * * @author Andreas Gohr */ function media_nstree_li($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 = '+'; } // TODO: only deliver an image if it actually has a subtree... return '

'. ' '.$alt.'

'; } /** * Resizes the given image to the given size * * @author Andreas Gohr */ 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 $file; } /** * Crops the given image to the wanted ratio, then calls media_resize_image to scale it * to the wanted size * * Crops are centered horizontally but prefer the upper third of an vertical * image because most pics are more interesting in that area (rule of thirds) * * @author Andreas Gohr */ function media_crop_image($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, $h); } /** * Download a remote file and return local filename * * returns false if download fails. Uses cached file if available and * wanted * * @author Andreas Gohr * @author Pavel Vitis */ function media_get_from_URL($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 $local; //else return false return false; } /** * Download image files * * @author Andreas Gohr */ function media_image_download($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 * @author Andreas Gohr */ 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 ($retval == 0) return true; return false; } /** * crop images using external ImageMagick convert program * * @author Andreas Gohr */ function media_crop_imageIM($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 ($retval == 0) return true; return false; } /** * resize or crop images using PHP's libGD support * * @author Andreas Gohr * @author Sebastian Wienecke */ function media_resize_imageGD($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: */

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