*/ use dokuwiki\ChangeLog\MediaChangeLog; use dokuwiki\Extension\Event; use dokuwiki\Form\Form; use dokuwiki\HTTP\DokuHTTPClient; use dokuwiki\Logger; use dokuwiki\Subscriptions\MediaSubscriptionSender; use dokuwiki\Ui\Media\DisplayRow; use dokuwiki\Ui\Media\DisplayTile; use dokuwiki\Ui\MediaDiff; use dokuwiki\Utf8\PhpString; use dokuwiki\Utf8\Sort; use splitbrain\slika\Slika; /** * 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 * * @param array $data * @param string $id */ function media_filesinuse($data,$id){ global $lang; echo '

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

'; echo '

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

'; $hidden=0; //count of hits without read permission foreach($data as $row){ if(auth_quickaclcheck($row) >= AUTH_READ && isVisiblePage($row)){ echo '
'; echo ''.hsc($row).''; echo '
'; }else $hidden++; } if ($hidden){ print '
'.$lang['ref_hidden'].'
'; } } /** * Handles the saving of image meta data * * @author Andreas Gohr * @author Kate Arzamastseva * * @param string $id media id * @param int $auth permission level * @param array $data * @return false|string */ function media_metasave($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); } } $old = @filemtime($src); if(!file_exists(mediaFN($id, $old)) && file_exists($src)) { // add old revision to the attic media_saveOldRevision($id); } $filesize_old = filesize($src); if($meta->save()){ if($conf['fperm']) chmod($src, $conf['fperm']); @clearstatcache(true, $src); $new = @filemtime($src); $filesize_new = filesize($src); $sizechange = $filesize_new - $filesize_old; // add a log entry to the media changelog addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT, $lang['media_meta_edited'], '', null, $sizechange); msg($lang['metasaveok'],1); return $id; }else{ msg($lang['metasaveerr'],-1); return false; } } /** * check if a media is external source * * @author Gerrit Uitslag * * @param string $id the media ID or URL * @return bool */ function media_isexternal($id){ if (preg_match('#^(?:https?|ftp)://#i', $id)) return true; return false; } /** * Check if a media item is public (eg, external URL or readable by @ALL) * * @author Andreas Gohr * * @param string $id the media ID or URL * @return bool */ function media_ispublic($id){ if(media_isexternal($id)) return true; $id = cleanID($id); if(auth_aclcheck(getNS($id).':*', '', array()) >= AUTH_READ) return true; return false; } /** * Display the form to edit image meta data * * @author Andreas Gohr * @author Kate Arzamastseva * * @param string $id media id * @param int $auth permission level * @return bool */ function media_metaform($id, $auth) { global $lang; if ($auth < AUTH_UPLOAD) { echo '
'.$lang['media_perm_upload'].'
'.DOKU_LF; return false; } // load the field descriptions static $fields = null; if ($fields === null) { $config_files = getConfigFiles('mediameta'); foreach ($config_files as $config_file) { if (file_exists($config_file)) include($config_file); } } $src = mediaFN($id); // output $form = new Form([ 'action' => media_managerURL(['tab_details' => 'view'], '&'), 'class' => 'meta' ]); $form->addTagOpen('div')->addClass('no'); $form->setHiddenField('img', $id); $form->setHiddenField('mediado', 'save'); foreach ($fields as $key => $field) { // get current value if (empty($field[0])) continue; $tags = array($field[0]); if (is_array($field[3])) $tags = array_merge($tags, $field[3]); $value = tpl_img_getTag($tags, '', $src); $value = cleanText($value); // prepare attributes $p = array( 'class' => 'edit', 'id' => 'meta__'.$key, 'name' => 'meta['.$field[0].']', ); $form->addTagOpen('div')->addClass('row'); if ($field[2] == 'text') { $form->addTextInput( $p['name'], ($lang[$field[1]] ?: $field[1] . ':') )->id($p['id'])->addClass($p['class'])->val($value); } else { $form->addTextarea($p['name'], $lang[$field[1]])->id($p['id']) ->val(formText($value)) ->addClass($p['class']) ->attr('rows', '6')->attr('cols', '50'); } $form->addTagClose('div'); } $form->addTagOpen('div')->addClass('buttons'); $form->addButton('mediado[save]', $lang['btn_save'])->attr('type', 'submit') ->attrs(['accesskey' => 's']); $form->addTagClose('div'); $form->addTagClose('div'); echo $form->toHTML(); return true; } /** * Convenience function to check if a media file is still in use * * @author Michael Klier * * @param string $id media id * @return array|bool */ function media_inuse($id) { global $conf; if($conf['refcheck']){ $mediareferences = ft_mediause($id,true); 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 * * @param string $id media id * @param int $auth no longer used * @return int One of: 0, * DOKU_MEDIA_DELETED, * DOKU_MEDIA_DELETED | DOKU_MEDIA_EMPTY_NS, * DOKU_MEDIA_NOT_AUTH, * DOKU_MEDIA_INUSE */ function media_delete($id,$auth){ global $lang; $auth = auth_quickaclcheck(ltrim(getNS($id).':*', ':')); 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 = array(); $data['id'] = $id; $data['name'] = PhpString::basename($file); $data['path'] = $file; $data['size'] = (file_exists($file)) ? filesize($file) : 0; $data['unl'] = false; $data['del'] = false; $evt = new Event('MEDIA_DELETE_FILE',$data); if ($evt->advise_before()) { $old = @filemtime($file); if(!file_exists(mediaFN($id, $old)) && file_exists($file)) { // add old revision to the attic media_saveOldRevision($id); } $data['unl'] = @unlink($file); if($data['unl']) { $sizechange = 0 - $data['size']; addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_DELETE, $lang['deleted'], '', null, $sizechange); $data['del'] = io_sweepNS($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; } /** * Handle file uploads via XMLHttpRequest * * @param string $ns target namespace * @param int $auth current auth check result * @return false|string false on error, id of the new file on success */ function media_upload_xhr($ns,$auth){ if(!checkSecurityToken()) return false; global $INPUT; $id = $INPUT->get->str('qqfile'); list($ext,$mime) = mimetype($id); $input = fopen("php://input", "r"); if (!($tmp = io_mktmpdir())) return false; $path = $tmp.'/'.md5($id); $target = fopen($path, "w"); $realSize = stream_copy_to_stream($input, $target); fclose($target); fclose($input); if ($INPUT->server->has('CONTENT_LENGTH') && ($realSize != $INPUT->server->int('CONTENT_LENGTH'))) { unlink($path); return false; } $res = media_save( array('name' => $path, 'mime' => $mime, 'ext' => $ext), $ns.':'.$id, ($INPUT->get->str('ow') == 'true'), $auth, 'copy' ); unlink($path); if ($tmp) io_rmdir($tmp, true); if (is_array($res)) { msg($res[0], $res[1]); return false; } return $res; } /** * Handles media file uploads * * @author Andreas Gohr * @author Michael Klier * * @param string $ns target namespace * @param int $auth current auth check result * @param bool|array $file $_FILES member, $_FILES['upload'] if false * @return false|string false on error, id of the new file on success */ function media_upload($ns,$auth,$file=false){ if(!checkSecurityToken()) return false; global $lang; global $INPUT; // get file and id $id = $INPUT->post->str('mediaid'); if (!$file) $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) = mimetype($file['name']); list($iext,$imime) = mimetype($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, $INPUT->post->bool('ow'), $auth, 'copy_uploaded_file'); if (is_array($res)) { msg($res[0], $res[1]); return false; } return $res; } /** * An alternative to move_uploaded_file that copies * * Using copy, makes sure any setgid bits on the media directory are honored * * @see move_uploaded_file() * * @param string $from * @param string $to * @return bool */ function copy_uploaded_file($from, $to){ if(!is_uploaded_file($from)) return false; $ok = copy($from, $to); @unlink($from); return $ok; } /** * 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 * $data[5] move: name of function that performs move/copy/.. * * @triggers MEDIA_UPLOAD_FINISH * * @param array $file * @param string $id media id * @param bool $ow overwrite? * @param int $auth permission level * @param string $move name of functions that performs move/copy/.. * @return false|array|string */ function media_save($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, $conf; // get filename $id = cleanID($id); $fn = mediaFN($id); // get filetype regexp $types = array_keys(getMimeTypes()); $types = array_map( function ($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); $auth_ow = (($conf['mediarevisions']) ? AUTH_UPLOAD : AUTH_DELETE); if($overwrite && (!$ow || $auth < $auth_ow)) { return array($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 = array(); $data[0] = $file['name']; $data[1] = $fn; $data[2] = $id; $data[3] = $file['mime']; $data[4] = $overwrite; $data[5] = $move; // trigger event return Event::createAndTrigger('MEDIA_UPLOAD_FINISH', $data, '_media_upload_action', true); } /** * Callback adapter for media_upload_finish() triggered by MEDIA_UPLOAD_FINISH * * @author Michael Klier * * @param array $data event data * @return false|array|string */ function _media_upload_action($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 * @author Kate Arzamastseva * * @param string $fn_tmp * @param string $fn * @param string $id media id * @param string $imime mime type * @param bool $overwrite overwrite existing? * @param string $move function name * @return array|string */ function media_upload_finish($fn_tmp, $fn, $id, $imime, $overwrite, $move = 'move_uploaded_file') { global $conf; global $lang; global $REV; $old = @filemtime($fn); if(!file_exists(mediaFN($id, $old)) && file_exists($fn)) { // add old revision to the attic if missing media_saveOldRevision($id); } // prepare directory io_createNamespace($id, 'media'); $filesize_old = file_exists($fn) ? filesize($fn) : 0; if($move($fn_tmp, $fn)) { @clearstatcache(true,$fn); $new = @filemtime($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,$imime,$old,$new); // add a log entry to the media changelog $filesize_new = filesize($fn); $sizechange = $filesize_new - $filesize_old; if($REV) { addMediaLogEntry( $new, $id, DOKU_CHANGE_TYPE_REVERT, sprintf($lang['restored'], dformat($REV)), $REV, null, $sizechange ); } elseif($overwrite) { addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT, '', '', null, $sizechange); } else { addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created'], '', null, $sizechange); } return $id; }else{ return array($lang['uploadfail'],-1); } } /** * Moves the current version of media file to the media_attic * directory * * @author Kate Arzamastseva * * @param string $id * @return int - revision date */ function media_saveOldRevision($id) { global $conf, $lang; $oldf = mediaFN($id); if (!file_exists($oldf)) return ''; $date = filemtime($oldf); if (!$conf['mediarevisions']) return $date; $medialog = new MediaChangeLog($id); if (!$medialog->getRevisionInfo($date)) { // there was an external edit, // there is no log entry for current version of file $sizechange = filesize($oldf); if(!file_exists(mediaMetaFN($id, '.changes'))) { addMediaLogEntry($date, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created'], '', null, $sizechange); } else { $oldRev = $medialog->getRevisions(-1, 1); // from changelog $oldRev = (int) (empty($oldRev) ? 0 : $oldRev[0]); $filesize_old = filesize(mediaFN($id, $oldRev)); $sizechange = $sizechange - $filesize_old; addMediaLogEntry($date, $id, DOKU_CHANGE_TYPE_EDIT, '', '', null, $sizechange); } } $newf = mediaFN($id, $date); io_makeFileDir($newf); if (copy($oldf, $newf)) { // 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 $conf['fperm'] is set.) chmod($newf, $conf['fmode']); } return $date; } /** * 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? * * @param string $file path to file * @param string $mime mimetype * @return int */ function media_contentcheck($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; //XSS: possibly malicious content } } } if(substr($mime,0,6) == 'image/'){ $info = @getimagesize($file); if($mime == 'image/gif' && $info[2] != 1){ return -1; // uploaded content did not match the file extension }elseif($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; //blocked by the spam blacklist } } return 0; } /** * Send a notify mail on uploads * * @author Andreas Gohr * * @param string $id media id * @param string $file path to file * @param string $mime mime type * @param bool|int $old_rev revision timestamp or false */ function media_notify($id,$file,$mime,$old_rev=false,$current_rev=false){ global $conf; if(empty($conf['notify'])) return; //notify enabled? $subscription = new MediaSubscriptionSender(); $subscription->sendMediaDiff($conf['notify'], 'uploadmail', $id, $old_rev, $current_rev); } /** * List all files in a given Media namespace * * @param string $ns namespace * @param null|int $auth permission level * @param string $jump id * @param bool $fullscreenview * @param bool|string $sort sorting order, false skips sorting */ function media_filelist($ns,$auth=null,$jump='',$fullscreenview=false,$sort=false){ 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:*"); if (!$fullscreenview) echo '

:'.hsc($ns).'

'.NL; if($auth < AUTH_READ){ // FIXME: print permission warning here instead? echo '
'.$lang['nothingfound'].'
'.NL; }else{ if (!$fullscreenview) { media_uploadform($ns, $auth); media_searchform($ns); } $dir = utf8_encodeFN(str_replace(':','/',$ns)); $data = array(); search($data,$conf['mediadir'],'search_mediafiles', array('showmsg'=>true,'depth'=>1),$dir,1,$sort); if(!count($data)){ echo '
'.$lang['nothingfound'].'
'.NL; }else { if ($fullscreenview) { echo '
    '; } foreach($data as $item){ if (!$fullscreenview) { //FIXME old call: media_printfile($item,$auth,$jump); $display = new DisplayRow($item); $display->scrollIntoView($jump == $item->getID()); $display->show(); } else { //FIXME old call: media_printfile_thumbs($item,$auth,$jump); echo '
  • '; $display = new DisplayTile($item); $display->scrollIntoView($jump == $item->getID()); $display->show(); echo '
    • '; } } if ($fullscreenview) echo '
'.NL; } } } /** * Prints tabs for files list actions * * @author Kate Arzamastseva * @author Adrian Lang * * @param string $selected_tab - opened tab */ function media_tabs_files($selected_tab = ''){ global $lang; $tabs = array(); foreach(array('files' => 'mediaselect', 'upload' => 'media_uploadtab', 'search' => 'media_searchtab') as $tab => $caption) { $tabs[$tab] = array('href' => media_managerURL(['tab_files' => $tab], '&'), 'caption' => $lang[$caption]); } html_tabs($tabs, $selected_tab); } /** * Prints tabs for files details actions * * @author Kate Arzamastseva * @param string $image filename of the current image * @param string $selected_tab opened tab */ function media_tabs_details($image, $selected_tab = '') { global $lang, $conf; $tabs = array(); $tabs['view'] = array('href' => media_managerURL(['tab_details' => 'view'], '&'), 'caption' => $lang['media_viewtab']); list(, $mime) = mimetype($image); if ($mime == 'image/jpeg' && file_exists(mediaFN($image))) { $tabs['edit'] = array('href' => media_managerURL(['tab_details' => 'edit'], '&'), 'caption' => $lang['media_edittab']); } if ($conf['mediarevisions']) { $tabs['history'] = array('href' => media_managerURL(['tab_details' => 'history'], '&'), 'caption' => $lang['media_historytab']); } html_tabs($tabs, $selected_tab); } /** * Prints options for the tab that displays a list of all files * * @author Kate Arzamastseva */ function media_tab_files_options() { global $lang; global $INPUT; global $ID; $form = new Form([ 'method' => 'get', 'action' => wl($ID), 'class' => 'options' ]); $form->addTagOpen('div')->addClass('no'); $form->setHiddenField('sectok', null); $media_manager_params = media_managerURL([], '', false, true); foreach ($media_manager_params as $pKey => $pVal) { $form->setHiddenField($pKey, $pVal); } if ($INPUT->has('q')) { $form->setHiddenField('q', $INPUT->str('q')); } $form->addHTML('
    '.NL); foreach (array('list' => array('listType', array('thumbs', 'rows')), 'sort' => array('sortBy', array('name', 'date'))) as $group => $content) { $checked = "_media_get_{$group}_type"; $checked = $checked(); $form->addHTML('
  • '); foreach ($content[1] as $option) { $attrs = array(); if ($checked == $option) { $attrs['checked'] = 'checked'; } $radio = $form->addRadioButton( $group.'_dwmedia', $lang['media_'.$group.'_'.$option] )->val($option)->id($content[0].'__'.$option)->addClass($option); $radio->attrs($attrs); } $form->addHTML('
    • '.NL); } $form->addHTML('
  • '); $form->addButton('', $lang['btn_apply'])->attr('type', 'submit'); $form->addHTML('
    • '.NL); $form->addHTML('
'.NL); $form->addTagClose('div'); print $form->toHTML(); } /** * Returns type of sorting for the list of files in media manager * * @author Kate Arzamastseva * * @return string - sort type */ function _media_get_sort_type() { return _media_get_display_param('sort', array('default' => 'name', 'date')); } /** * Returns type of listing for the list of files in media manager * * @author Kate Arzamastseva * * @return string - list type */ function _media_get_list_type() { return _media_get_display_param('list', array('default' => 'thumbs', 'rows')); } /** * Get display parameters * * @param string $param name of parameter * @param array $values allowed values, where default value has index key 'default' * @return string the parameter value */ function _media_get_display_param($param, $values) { global $INPUT; if (in_array($INPUT->str($param), $values)) { // FIXME: Set cookie return $INPUT->str($param); } else { $val = get_doku_pref($param, $values['default']); if (!in_array($val, $values)) { $val = $values['default']; } return $val; } } /** * Prints tab that displays a list of all files * * @author Kate Arzamastseva * * @param string $ns * @param null|int $auth permission level * @param string $jump item id */ function media_tab_files($ns,$auth=null,$jump='') { global $lang; if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*"); if($auth < AUTH_READ){ echo '
'.$lang['media_perm_read'].'
'.NL; }else{ media_filelist($ns,$auth,$jump,true,_media_get_sort_type()); } } /** * Prints tab that displays uploading form * * @author Kate Arzamastseva * * @param string $ns * @param null|int $auth permission level * @param string $jump item id */ function media_tab_upload($ns,$auth=null,$jump='') { global $lang; if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*"); echo '
'.NL; if ($auth >= AUTH_UPLOAD) { echo '

' . $lang['mediaupload'] . '

'; } media_uploadform($ns, $auth, true); echo '
'.NL; } /** * Prints tab that displays search form * * @author Kate Arzamastseva * * @param string $ns * @param null|int $auth permission level */ function media_tab_search($ns,$auth=null) { global $INPUT; $do = $INPUT->str('mediado'); $query = $INPUT->str('q'); echo '
'.NL; media_searchform($ns, $query, true); if ($do == 'searchlist' || $query) { media_searchlist($query,$ns,$auth,true,_media_get_sort_type()); } echo '
'.NL; } /** * Prints tab that displays mediafile details * * @author Kate Arzamastseva * * @param string $image media id * @param string $ns * @param null|int $auth permission level * @param string|int $rev revision timestamp or empty string */ function media_tab_view($image, $ns, $auth=null, $rev='') { global $lang; if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*"); if ($image && $auth >= AUTH_READ) { $meta = new JpegMeta(mediaFN($image, $rev)); media_preview($image, $auth, $rev, $meta); media_preview_buttons($image, $auth, $rev); media_details($image, $auth, $rev, $meta); } else { echo '
'.$lang['media_perm_read'].'
'.NL; } } /** * Prints tab that displays form for editing mediafile metadata * * @author Kate Arzamastseva * * @param string $image media id * @param string $ns * @param null|int $auth permission level */ function media_tab_edit($image, $ns, $auth=null) { if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*"); if ($image) { list(, $mime) = mimetype($image); if ($mime == 'image/jpeg') media_metaform($image,$auth); } } /** * Prints tab that displays mediafile revisions * * @author Kate Arzamastseva * * @param string $image media id * @param string $ns * @param null|int $auth permission level */ function media_tab_history($image, $ns, $auth=null) { global $lang; global $INPUT; if(is_null($auth)) $auth = auth_quickaclcheck("$ns:*"); $do = $INPUT->str('mediado'); if ($auth >= AUTH_READ && $image) { if ($do == 'diff'){ (new dokuwiki\Ui\MediaDiff($image))->show(); //media_diff($image, $ns, $auth); } else { $first = $INPUT->int('first',-1); (new dokuwiki\Ui\MediaRevisions($image))->show($first); } } else { echo '
'.$lang['media_perm_read'].'
'.NL; } } /** * Prints mediafile details * * @param string $image media id * @param int $auth permission level * @param int|string $rev revision timestamp or empty string * @param JpegMeta|bool $meta * * @author Kate Arzamastseva */ function media_preview($image, $auth, $rev = '', $meta = false) { $size = media_image_preview_size($image, $rev, $meta); if ($size) { global $lang; echo '
'; $more = array(); if ($rev) { $more['rev'] = $rev; } else { $t = @filemtime(mediaFN($image)); $more['t'] = $t; } $more['w'] = $size[0]; $more['h'] = $size[1]; $src = ml($image, $more); echo ''; echo ''; echo ''; echo '
'; } } /** * Prints mediafile action buttons * * @author Kate Arzamastseva * * @param string $image media id * @param int $auth permission level * @param int|string $rev revision timestamp, or empty string */ function media_preview_buttons($image, $auth, $rev = '') { global $lang, $conf; echo '
    '; if ($auth >= AUTH_DELETE && !$rev && file_exists(mediaFN($image))) { // delete button $form = new Form([ 'id' => 'mediamanager__btn_delete', 'action' => media_managerURL(['delete' => $image], '&'), ]); $form->addTagOpen('div')->addClass('no'); $form->addButton('', $lang['btn_delete'])->attr('type', 'submit'); $form->addTagClose('div'); echo '
  • '; echo $form->toHTML(); echo '
    • '; } $auth_ow = (($conf['mediarevisions']) ? AUTH_UPLOAD : AUTH_DELETE); if ($auth >= $auth_ow && !$rev) { // upload new version button $form = new Form([ 'id' => 'mediamanager__btn_update', 'action' => media_managerURL(['image' => $image, 'mediado' => 'update'], '&'), ]); $form->addTagOpen('div')->addClass('no'); $form->addButton('', $lang['media_update'])->attr('type', 'submit'); $form->addTagClose('div'); echo '
  • '; echo $form->toHTML(); echo '
    • '; } if ($auth >= AUTH_UPLOAD && $rev && $conf['mediarevisions'] && file_exists(mediaFN($image, $rev))) { // restore button $form = new Form([ 'id' => 'mediamanager__btn_restore', 'action'=>media_managerURL(['image' => $image], '&'), ]); $form->addTagOpen('div')->addClass('no'); $form->setHiddenField('mediado', 'restore'); $form->setHiddenField('rev', $rev); $form->addButton('', $lang['media_restore'])->attr('type', 'submit'); $form->addTagClose('div'); echo '
  • '; echo $form->toHTML(); echo '
    • '; } echo '
'; } /** * Returns image width and height for mediamanager preview panel * * @author Kate Arzamastseva * @param string $image * @param int|string $rev * @param JpegMeta|bool $meta * @param int $size * @return array */ function media_image_preview_size($image, $rev, $meta = false, $size = 500) { if (!preg_match("/\.(jpe?g|gif|png)$/", $image) || !file_exists($filename = mediaFN($image, $rev)) ) return array(); $info = getimagesize($filename); $w = (int) $info[0]; $h = (int) $info[1]; if ($meta && ($w > $size || $h > $size)) { $ratio = $meta->getResizeRatio($size, $size); $w = floor($w * $ratio); $h = floor($h * $ratio); } return array($w, $h); } /** * Returns the requested EXIF/IPTC tag from the image meta * * @author Kate Arzamastseva * * @param array $tags array with tags, first existing is returned * @param JpegMeta $meta * @param string $alt alternative value * @return string */ function media_getTag($tags, $meta = false, $alt = '') { if (!$meta) return $alt; $info = $meta->getField($tags); if (!$info) return $alt; return $info; } /** * Returns mediafile tags * * @author Kate Arzamastseva * * @param JpegMeta $meta * @return array list of tags of the mediafile */ function media_file_tags($meta) { // load the field descriptions static $fields = null; if (is_null($fields)) { $config_files = getConfigFiles('mediameta'); foreach ($config_files as $config_file) { if (file_exists($config_file)) include($config_file); } } $tags = array(); foreach ($fields as $key => $tag) { $t = array(); if (!empty($tag[0])) $t = array($tag[0]); if (isset($tag[3]) && is_array($tag[3])) $t = array_merge($t,$tag[3]); $value = media_getTag($t, $meta); $tags[] = array('tag' => $tag, 'value' => $value); } return $tags; } /** * Prints mediafile tags * * @author Kate Arzamastseva * * @param string $image image id * @param int $auth permission level * @param string|int $rev revision timestamp, or empty string * @param bool|JpegMeta $meta image object, or create one if false */ function media_details($image, $auth, $rev='', $meta=false) { global $lang; if (!$meta) $meta = new JpegMeta(mediaFN($image, $rev)); $tags = media_file_tags($meta); echo '
'.NL; foreach($tags as $tag){ if ($tag['value']) { $value = cleanText($tag['value']); echo '
'.$lang[$tag['tag'][1]].'
'; if ($tag['tag'][2] == 'date') echo dformat($value); else echo hsc($value); echo '
'.NL; } } echo '
'.NL; echo '
'.NL; echo '
'.$lang['reference'].':
'; $media_usage = ft_mediause($image,true); if(count($media_usage) > 0){ foreach($media_usage as $path){ echo '
'.html_wikilink($path).'
'; } }else{ echo '
'.$lang['nothingfound'].'
'; } echo '
'.NL; } /** * Shows difference between two revisions of file * * @author Kate Arzamastseva * * @param string $image image id * @param string $ns * @param int $auth permission level * @param bool $fromajax * * @deprecated 2020-12-31 */ function media_diff($image, $ns, $auth, $fromajax = false) { dbg_deprecated('see '. MediaDiff::class .'::show()'); } /** * Callback for media file diff * * @param array $data event data * * @deprecated 2020-12-31 */ function _media_file_diff($data) { dbg_deprecated('see '. MediaDiff::class .'::show()'); } /** * Shows difference between two revisions of image * * @author Kate Arzamastseva * * @param string $image * @param string|int $l_rev revision timestamp, or empty string * @param string|int $r_rev revision timestamp, or empty string * @param string $ns * @param int $auth permission level * @param bool $fromajax * @deprecated 2020-12-31 */ function media_file_diff($image, $l_rev, $r_rev, $ns, $auth, $fromajax) { dbg_deprecated('see '. MediaDiff::class .'::showFileDiff()'); } /** * Prints two images side by side * and slider * * @author Kate Arzamastseva * * @param string $image image id * @param int $l_rev revision timestamp, or empty string * @param int $r_rev revision timestamp, or empty string * @param array $l_size array with width and height * @param array $r_size array with width and height * @param string $type * @deprecated 2020-12-31 */ function media_image_diff($image, $l_rev, $r_rev, $l_size, $r_size, $type) { dbg_deprecated('see '. MediaDiff::class .'::showImageDiff()'); } /** * Restores an old revision of a media file * * @param string $image media id * @param int $rev revision timestamp or empty string * @param int $auth * @return string - file's id * * @author Kate Arzamastseva */ function media_restore($image, $rev, $auth){ global $conf; if ($auth < AUTH_UPLOAD || !$conf['mediarevisions']) return false; $removed = (!file_exists(mediaFN($image)) && file_exists(mediaMetaFN($image, '.changes'))); if (!$image || (!file_exists(mediaFN($image)) && !$removed)) return false; if (!$rev || !file_exists(mediaFN($image, $rev))) return false; list(,$imime,) = mimetype($image); $res = media_upload_finish(mediaFN($image, $rev), mediaFN($image), $image, $imime, true, 'copy'); if (is_array($res)) { msg($res[0], $res[1]); return false; } return $res; } /** * List all files found by the search request * * @author Tobias Sarnowski * @author Andreas Gohr * @author Kate Arzamastseva * @triggers MEDIA_SEARCH * * @param string $query * @param string $ns * @param null|int $auth * @param bool $fullscreen * @param string $sort */ function media_searchlist($query,$ns,$auth=null,$fullscreen=false,$sort='natural'){ global $conf; global $lang; $ns = cleanID($ns); $evdata = array( 'ns' => $ns, 'data' => array(), 'query' => $query ); if (!blank($query)) { $evt = new Event('MEDIA_SEARCH', $evdata); if ($evt->advise_before()) { $dir = utf8_encodeFN(str_replace(':','/',$evdata['ns'])); $quoted = preg_quote($evdata['query'],'/'); //apply globbing $quoted = str_replace(array('\*', '\?'), array('.*', '.'), $quoted, $count); //if we use globbing file name must match entirely but may be preceded by arbitrary namespace if ($count > 0) $quoted = '^([^:]*:)*'.$quoted.'$'; $pattern = '/'.$quoted.'/i'; search($evdata['data'], $conf['mediadir'], 'search_mediafiles', array('showmsg'=>false,'pattern'=>$pattern), $dir, 1, $sort); } $evt->advise_after(); unset($evt); } if (!$fullscreen) { echo '

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

'.NL; media_searchform($ns,$query); } if(!count($evdata['data'])){ echo '
'.$lang['nothingfound'].'
'.NL; }else { if ($fullscreen) { echo '
    '; } foreach($evdata['data'] as $item){ if (!$fullscreen) { // FIXME old call: media_printfile($item,$item['perm'],'',true); $display = new DisplayRow($item); $display->relativeDisplay($ns); $display->show(); } else { // FIXME old call: media_printfile_thumbs($item,$item['perm'],false,true); $display = new DisplayTile($item); $display->relativeDisplay($ns); echo '
  • '; $display->show(); echo '
    • '; } } if ($fullscreen) echo '
'.NL; } } /** * Display a media icon * * @param string $filename media id * @param string $size the size subfolder, if not specified 16x16 is used * @return string html */ function media_printicon($filename, $size=''){ list($ext) = mimetype(mediaFN($filename),false); if (file_exists(DOKU_INC.'lib/images/fileicons/'.$size.'/'.$ext.'.png')) { $icon = DOKU_BASE.'lib/images/fileicons/'.$size.'/'.$ext.'.png'; } else { $icon = DOKU_BASE.'lib/images/fileicons/'.$size.'/file.png'; } return ''.$filename.''; } /** * Build link based on the current, adding/rewriting parameters * * @author Kate Arzamastseva * * @param array|bool $params * @param string $amp separator * @param bool $abs absolute url? * @param bool $params_array return the parmeters array? * @return string|array - link or link parameters */ function media_managerURL($params = false, $amp = '&', $abs = false, $params_array = false) { global $ID; global $INPUT; $gets = array('do' => 'media'); $media_manager_params = array('tab_files', 'tab_details', 'image', 'ns', 'list', 'sort'); foreach ($media_manager_params as $x) { if ($INPUT->has($x)) $gets[$x] = $INPUT->str($x); } if ($params) { $gets = $params + $gets; } unset($gets['id']); if (isset($gets['delete'])) { unset($gets['image']); unset($gets['tab_details']); } if ($params_array) return $gets; return wl($ID,$gets,$abs,$amp); } /** * Print the media upload form if permissions are correct * * @author Andreas Gohr * @author Kate Arzamastseva * * @param string $ns * @param int $auth permission level * @param bool $fullscreen */ function media_uploadform($ns, $auth, $fullscreen = false) { global $lang; global $conf; global $INPUT; if ($auth < AUTH_UPLOAD) { echo '
'.$lang['media_perm_upload'].'
'.NL; return; } $auth_ow = (($conf['mediarevisions']) ? AUTH_UPLOAD : AUTH_DELETE); $update = false; $id = ''; if ($auth >= $auth_ow && $fullscreen && $INPUT->str('mediado') == 'update') { $update = true; $id = cleanID($INPUT->str('image')); } // The default HTML upload form $form = new Form([ 'id' => 'dw__upload', 'enctype' => 'multipart/form-data', 'action' => ($fullscreen) ? media_managerURL(['tab_files' => 'files', 'tab_details' => 'view'], '&') : DOKU_BASE.'lib/exe/mediamanager.php', ]); $form->addTagOpen('div')->addClass('no'); $form->setHiddenField('ns', hsc($ns)); // FIXME hsc required? $form->addTagOpen('p'); $form->addTextInput('upload', $lang['txt_upload'])->id('upload__file') ->attrs(['type' => 'file']); $form->addTagClose('p'); $form->addTagOpen('p'); $form->addTextInput('mediaid', $lang['txt_filename'])->id('upload__name') ->val(noNS($id)); $form->addButton('', $lang['btn_upload'])->attr('type', 'submit'); $form->addTagClose('p'); if ($auth >= $auth_ow){ $form->addTagOpen('p'); $attrs = array(); if ($update) $attrs['checked'] = 'checked'; $form->addCheckbox('ow', $lang['txt_overwrt'])->id('dw__ow')->val('1') ->addClass('check')->attrs($attrs); $form->addTagClose('p'); } $form->addTagClose('div'); if (!$fullscreen) { echo '
'. $lang['mediaupload'] .'
'.DOKU_LF; } else { echo DOKU_LF; } echo '
'.DOKU_LF; echo $form->toHTML('Upload'); echo '
'.DOKU_LF; echo '

'; printf($lang['maxuploadsize'], filesize_h(media_getuploadsize())); echo ' '. $lang['allowedmime'] .''; echo ' '. implode(', ', array_keys(getMimeTypes())) .''; echo '

'.DOKU_LF; } /** * Returns the size uploaded files may have * * This uses a conservative approach using the lowest number found * in any of the limiting ini settings * * @returns int size in bytes */ function media_getuploadsize(){ $okay = 0; $post = (int) php_to_byte(@ini_get('post_max_size')); $suho = (int) php_to_byte(@ini_get('suhosin.post.max_value_length')); $upld = (int) php_to_byte(@ini_get('upload_max_filesize')); if($post && ($post < $okay || $okay == 0)) $okay = $post; if($suho && ($suho < $okay || $okay == 0)) $okay = $suho; if($upld && ($upld < $okay || $okay == 0)) $okay = $upld; return $okay; } /** * Print the search field form * * @author Tobias Sarnowski * @author Kate Arzamastseva * * @param string $ns * @param string $query * @param bool $fullscreen */ function media_searchform($ns, $query = '', $fullscreen = false) { global $lang; // The default HTML search form $form = new Form([ 'id' => 'dw__mediasearch', 'action' => ($fullscreen) ? media_managerURL([], '&') : DOKU_BASE.'lib/exe/mediamanager.php', ]); $form->addTagOpen('div')->addClass('no'); $form->setHiddenField('ns', $ns); $form->setHiddenField($fullscreen ? 'mediado' : 'do', 'searchlist'); $form->addTagOpen('p'); $form->addTextInput('q', $lang['searchmedia']) ->attr('title', sprintf($lang['searchmedia_in'], hsc($ns) .':*')) ->val($query); $form->addHTML(' '); $form->addButton('', $lang['btn_search'])->attr('type', 'submit'); $form->addTagClose('p'); $form->addTagClose('div'); print $form->toHTML('SearchMedia'); } /** * Build a tree outline of available media namespaces * * @author Andreas Gohr * * @param string $ns */ function media_nstree($ns){ global $conf; global $lang; // currently selected namespace $ns = cleanID($ns); if(empty($ns)){ global $ID; $ns = (string)getNS($ID); } $ns_dir = utf8_encodeFN(str_replace(':','/',$ns)); $data = array(); search($data,$conf['mediadir'],'search_index',array('ns' => $ns_dir, 'nofiles' => true)); // wrap a list with the root level around the other namespaces array_unshift($data, array('level' => 0, 'id' => '', 'open' =>'true', 'label' => '['.$lang['mediaroot'].']')); // insert the current ns into the hierarchy if it isn't already part of it $ns_parts = explode(':', $ns); $tmp_ns = ''; $pos = 0; foreach ($ns_parts as $level => $part) { if ($tmp_ns) $tmp_ns .= ':'.$part; else $tmp_ns = $part; // find the namespace parts or insert them while ($data[$pos]['id'] != $tmp_ns) { if ( $pos >= count($data) || ($data[$pos]['level'] <= $level+1 && Sort::strcmp($data[$pos]['id'], $tmp_ns) > 0) ) { array_splice($data, $pos, 0, array(array('level' => $level+1, 'id' => $tmp_ns, 'open' => 'true'))); break; } ++$pos; } } echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li'); } /** * Userfunction for html_buildlist * * Prints a media namespace tree item * * @author Andreas Gohr * * @param array $item * @return string html */ function media_nstree_item($item){ global $INPUT; $pos = strrpos($item['id'], ':'); $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0); if(empty($item['label'])) $item['label'] = $label; $ret = ''; if (!($INPUT->str('do') == 'media')) $ret .= ''; else $ret .= ''; $ret .= $item['label']; $ret .= ''; return $ret; } /** * Userfunction for html_buildlist * * Prints a media namespace tree item opener * * @author Andreas Gohr * * @param array $item * @return string html */ function media_nstree_li($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 or crop the given image to the given size * * @author Andreas Gohr * * @param string $file filename, path to file * @param string $ext extension * @param int $w desired width * @param int $h desired height * @param bool $crop should a center crop be used? * @return string path to resized or original size if failed */ function media_mod_image($file, $ext, $w, $h=0, $crop=false) { global $conf; if(!$h) $h = 0; // we wont scale up to infinity if($w > 2000 || $h > 2000) return $file; $operation = $crop ? 'crop' : 'resize'; $options = [ 'quality' => $conf['jpg_quality'], 'imconvert' => $conf['im_convert'], ]; $cache = new \dokuwiki\Cache\CacheImageMod($file, $w, $h, $ext, $crop); if(!$cache->useCache()) { try { Slika::run($file, $options) ->autorotate() ->$operation($w, $h) ->save($cache->cache, $ext); if($conf['fperm']) @chmod($cache->cache, $conf['fperm']); } catch (\splitbrain\slika\Exception $e) { Logger::debug($e->getMessage()); return $file; } } return $cache->cache; } /** * Resizes the given image to the given size * * @author Andreas Gohr * * @param string $file filename, path to file * @param string $ext extension * @param int $w desired width * @param int $h desired height * @return string path to resized or original size if failed */ function media_resize_image($file, $ext, $w, $h = 0) { return media_mod_image($file, $ext, $w, $h, false); } /** * Center crops the given image to the wanted size * * @author Andreas Gohr * * @param string $file filename, path to file * @param string $ext extension * @param int $w desired width * @param int $h desired height * @return string path to resized or original size if failed */ function media_crop_image($file, $ext, $w, $h = 0) { return media_mod_image($file, $ext, $w, $h, true); } /** * Calculate a token to be used to verify fetch requests for resized or * cropped images have been internally generated - and prevent external * DDOS attacks via fetch * * @author Christopher Smith * * @param string $id id of the image * @param int $w resize/crop width * @param int $h resize/crop height * @return string token or empty string if no token required */ function media_get_token($id,$w,$h){ // token is only required for modified images if ($w || $h || media_isexternal($id)) { $token = $id; if ($w) $token .= '.'.$w; if ($h) $token .= '.'.$h; return substr(\dokuwiki\PassHash::hmac('md5', $token, auth_cookiesalt()),0,6); } return ''; } /** * 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 * * @param string $url * @param string $ext extension * @param int $cache cachetime in seconds * @return false|string path to cached file */ function media_get_from_URL($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 * * @param string $url * @param string $file path to file in which to put the downloaded content * @return bool */ function media_image_download($url,$file){ global $conf; $http = new DokuHTTPClient(); $http->keep_alive = false; // we do single ops here, no need for keep-alive $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 * * @param string $ext extension * @param string $from filename path to file * @param int $from_w original width * @param int $from_h original height * @param string $to path to resized file * @param int $to_w desired width * @param int $to_h desired height * @return bool */ function media_resize_imageIM($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 * * @param string $ext extension * @param string $from filename path to file * @param int $from_w original width * @param int $from_h original height * @param string $to path to resized file * @param int $to_w desired width * @param int $to_h desired height * @param int $ofs_x offset of crop centre * @param int $ofs_y offset of crop centre * @return bool * @deprecated 2020-09-01 */ function media_crop_imageIM($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x,$ofs_y){ global $conf; dbg_deprecated('splitbrain\\Slika'); // check if convert is configured if(!$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 * * @param string $ext extension * @param string $from filename path to file * @param int $from_w original width * @param int $from_h original height * @param string $to path to resized file * @param int $to_w desired width * @param int $to_h desired height * @param int $ofs_x offset of crop centre * @param int $ofs_y offset of crop centre * @return bool * @deprecated 2020-09-01 */ function media_resize_imageGD($ext,$from,$from_w,$from_h,$to,$to_w,$to_h,$ofs_x=0,$ofs_y=0){ global $conf; dbg_deprecated('splitbrain\\Slika'); if($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 $image = false; if ($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; $newimg = false; if(($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, $to); } } // destroy GD image resources imagedestroy($image); imagedestroy($newimg); return $okay; } /** * Return other media files with the same base name * but different extensions. * * @param string $src - ID of media file * @param string[] $exts - alternative extensions to find other files for * @return array - array(mime type => file ID) * * @author Anika Henke */ function media_alternativefiles($src, $exts){ $files = array(); list($srcExt, /* $srcMime */) = mimetype($src); $filebase = substr($src, 0, -1 * (strlen($srcExt)+1)); foreach($exts as $ext) { $fileid = $filebase.'.'.$ext; $file = mediaFN($fileid); if(file_exists($file)) { list(/* $fileExt */, $fileMime) = mimetype($file); $files[$fileMime] = $fileid; } } return $files; } /** * Check if video/audio is supported to be embedded. * * @param string $mime - mimetype of media file * @param string $type - type of media files to check ('video', 'audio', or null for all) * @return boolean * * @author Anika Henke */ function media_supportedav($mime, $type=NULL){ $supportedAudio = array( 'ogg' => 'audio/ogg', 'mp3' => 'audio/mpeg', 'wav' => 'audio/wav', ); $supportedVideo = array( 'webm' => 'video/webm', 'ogv' => 'video/ogg', 'mp4' => 'video/mp4', ); if ($type == 'audio') { $supportedAv = $supportedAudio; } elseif ($type == 'video') { $supportedAv = $supportedVideo; } else { $supportedAv = array_merge($supportedAudio, $supportedVideo); } return in_array($mime, $supportedAv); } /** * Return track media files with the same base name * but extensions that indicate kind and lang. * ie for foo.webm search foo.sub.lang.vtt, foo.cap.lang.vtt... * * @param string $src - ID of media file * @return array - array(mediaID => array( kind, srclang )) * * @author Schplurtz le Déboulonné */ function media_trackfiles($src){ $kinds=array( 'sub' => 'subtitles', 'cap' => 'captions', 'des' => 'descriptions', 'cha' => 'chapters', 'met' => 'metadata' ); $files = array(); $re='/\\.(sub|cap|des|cha|met)\\.([^.]+)\\.vtt$/'; $baseid=pathinfo($src, PATHINFO_FILENAME); $pattern=mediaFN($baseid).'.*.*.vtt'; $list=glob($pattern); foreach($list as $track) { if(preg_match($re, $track, $matches)){ $files[$baseid.'.'.$matches[1].'.'.$matches[2].'.vtt']=array( $kinds[$matches[1]], $matches[2], ); } } return $files; } /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */