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

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

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

'.$lang['ref_hidden'].'

* @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($id); } if($meta->save()){ if($conf['fperm']) chmod($src, $conf['fperm']); $new = @filemtime($src); // add a log entry to the media changelog addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT, $lang['media_meta_edited']); msg($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'].'

'.NL; return false; } // 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); } } $src = mediaFN($id); // output $form = new Doku_Form(array('action' => media_managerURL(array('tab_details' => 'view'), '&'), 'class' => 'meta')); $form->addHidden('img', $id); $form->addHidden('mediado', 'save'); foreach($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(); $p['class'] = 'edit'; $p['id'] = 'meta__'.$key; $p['name'] = 'meta['.$field[0].']'; $p_attrs = array('class' => 'edit'); $form->addElement('

'); if($field[2] == 'text'){ $form->addElement(form_makeField('text', $p['name'], $value, ($lang[$field[1]]) ? $lang[$field[1]] : $field[1] . ':', $p['id'], $p['class'], $p_attrs)); }else{ $att = buildAttributes($p); $form->addElement(''.$lang[$field[1]].''); $form->addElement("'); } $form->addElement('

'.NL); } $form->addElement('

'); $form->addElement(form_makeButton('submit', '', $lang['btn_save'], array('accesskey' => 's', 'name' => 'mediado[save]'))); $form->addElement('

'.NL); $form->printForm(); 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; } } 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 * * @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; $data['name'] = utf8_basename($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()) { $old = @filemtime($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']){ addMediaLogEntry(time(), $id, DOKU_CHANGE_TYPE_DELETE, $lang['deleted']); $data['del'] = io_sweepNS($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($input); if (isset($_SERVER["CONTENT_LENGTH"]) && ($realSize != (int)$_SERVER["CONTENT_LENGTH"])){ unlink($path); return false; } $res = media_save( array('name' => $path, 'mime' => $mime, 'ext' => $ext), $ns.':'.$id, (($INPUT->get->str('ow') == 'checked') ? true : false), $auth, 'copy' ); unlink($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()); $types = array_map(create_function('$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); $auth_ow = (($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 trigger_event('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'); 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); // add a log entry to the media changelog if ($REV){ addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_REVERT, sprintf($lang['restored'], dformat($REV)), $REV); } elseif ($overwrite) { addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_EDIT); } else { addMediaLogEntry($new, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created']); } 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 if (!file_exists(mediaMetaFN($id,'.changes'))) { addMediaLogEntry($date, $id, DOKU_CHANGE_TYPE_CREATE, $lang['created']); } else { addMediaLogEntry($date, $id, DOKU_CHANGE_TYPE_EDIT); } } $newf = mediaFN($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 $old_rev revision timestamp or false * @return bool */ function media_notify($id,$file,$mime,$old_rev=false){ global $conf; if(empty($conf['notify'])) return false; //notify enabled? $subscription = new Subscription(); return $subscription->send_media_diff($conf['notify'], 'uploadmail', $id, $old_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,$conf['mediadir'],'search_media', array('showmsg'=>true,'depth'=>1),$dir,1,$sort); if(!count($data)){ echo '

'.$lang['nothingfound'].'

'.NL; }else { if ($fullscreenview) { echo '

'; } foreach($data as $item){ if (!$fullscreenview) { media_printfile($item,$auth,$jump); } else { media_printfile_thumbs($item,$auth,$jump); } } 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(array('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(array('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(array('tab_details' => 'edit'), '&'), 'caption' => $lang['media_edittab']); } if ($conf['mediarevisions']) { $tabs['history'] = array('href' => media_managerURL(array('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; $form = new Doku_Form(array('class' => 'options', 'method' => 'get', 'action' => wl($ID))); $media_manager_params = media_managerURL(array(), '', false, true); foreach($media_manager_params as $pKey => $pVal){ $form->addHidden($pKey, $pVal); } $form->addHidden('sectok', null); if ($INPUT->has('q')) { $form->addHidden('q', $INPUT->str('q')); } $form->addElement('

'); foreach($content[1] as $option) { $attrs = array(); if ($checked == $option) { $attrs['checked'] = 'checked'; } $form->addElement(form_makeRadioField($group . '_dwmedia', $option, $lang['media_' . $group . '_' . $option], $content[0] . '__' . $option, $option, $attrs)); } $form->addElement('
'); $form->addElement(form_makeButton('submit', '', $lang['btn_apply'])); $form->addElement('

'.NL); $form->printForm(); } /** * 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'){ media_diff($image, $ns, $auth); } else { $first = $INPUT->int('first'); html_revisions($first, $image); } } 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 '

'.NL; } } /** * Prints mediafile action buttons * * @author Kate Arzamastseva * * @param string $image media id * @param int $auth permission level * @param string|int $rev revision timestamp, or empty string */ function media_preview_buttons($image, $auth, $rev='') { global $lang, $conf; echo '

'; $form->printForm(); echo '
'; $form->printForm(); echo '
'; $form->printForm(); echo '

'.NL; } /** * 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 $size * @return array|false */ function media_image_preview_size($image, $rev, $meta, $size = 500) { if (!preg_match("/\.(jpe?g|gif|png)$/", $image) || !file_exists(mediaFN($image, $rev))) return false; $info = getimagesize(mediaFN($image, $rev)); $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,$meta,$alt=''){ if($meta === false) return $alt; $info = $meta->getField($tags); if($info == false) 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 '

'.$lang[$tag['tag'][1]].': '; if ($tag['tag'][2] == 'date') echo dformat($value); else echo hsc($value); 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 $fromajax * @return false|null|string */ function media_diff($image, $ns, $auth, $fromajax = false) { global $conf; global $INPUT; if ($auth < AUTH_READ || !$image || !$conf['mediarevisions']) return ''; $rev1 = $INPUT->int('rev'); $rev2 = $INPUT->ref('rev2'); if(is_array($rev2)){ $rev1 = (int) $rev2[0]; $rev2 = (int) $rev2[1]; if(!$rev1){ $rev1 = $rev2; unset($rev2); } }else{ $rev2 = $INPUT->int('rev2'); } if ($rev1 && !file_exists(mediaFN($image, $rev1))) $rev1 = false; if ($rev2 && !file_exists(mediaFN($image, $rev2))) $rev2 = false; if($rev1 && $rev2){ // two specific revisions wanted // make sure order is correct (older on the left) if($rev1 < $rev2){ $l_rev = $rev1; $r_rev = $rev2; }else{ $l_rev = $rev2; $r_rev = $rev1; } }elseif($rev1){ // single revision given, compare to current $r_rev = ''; $l_rev = $rev1; }else{ // no revision was given, compare previous to current $r_rev = ''; $medialog = new MediaChangeLog($image); $revs = $medialog->getRevisions(0, 1); if (file_exists(mediaFN($image, $revs[0]))) { $l_rev = $revs[0]; } else { $l_rev = ''; } } // prepare event data $data = array(); $data[0] = $image; $data[1] = $l_rev; $data[2] = $r_rev; $data[3] = $ns; $data[4] = $auth; $data[5] = $fromajax; // trigger event return trigger_event('MEDIA_DIFF', $data, '_media_file_diff', true); } /** * Callback for media file diff * * @param array $data event data * @return false|null */ function _media_file_diff($data) { if(is_array($data) && count($data)===6) { media_file_diff($data[0], $data[1], $data[2], $data[3], $data[4], $data[5]); } else { return false; } } /** * 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 $fromajax */ function media_file_diff($image, $l_rev, $r_rev, $ns, $auth, $fromajax){ global $lang; global $INPUT; $l_meta = new JpegMeta(mediaFN($image, $l_rev)); $r_meta = new JpegMeta(mediaFN($image, $r_rev)); $is_img = preg_match('/\.(jpe?g|gif|png)$/', $image); if ($is_img) { $l_size = media_image_preview_size($image, $l_rev, $l_meta); $r_size = media_image_preview_size($image, $r_rev, $r_meta); $is_img = ($l_size && $r_size && ($l_size[0] >= 30 || $r_size[0] >= 30)); $difftype = $INPUT->str('difftype'); if (!$fromajax) { $form = new Doku_Form(array( 'action' => media_managerURL(array(), '&'), 'method' => 'get', 'id' => 'mediamanager__form_diffview', 'class' => 'diffView' )); $form->addHidden('sectok', null); $form->addElement(''); $form->addElement(''); $form->addHidden('mediado', 'diff'); $form->printForm(); echo NL.'

'.NL; } if ($difftype == 'opacity' || $difftype == 'portions') { media_image_diff($image, $l_rev, $r_rev, $l_size, $r_size, $difftype); if (!$fromajax) echo '

'; return; } } list($l_head, $r_head) = html_diff_head($l_rev, $r_rev, $image, true); ?>

'; echo ''; echo ''; echo ''.NL; echo ''; echo ''; echo ''; echo ''.NL; $l_tags = media_file_tags($l_meta); $r_tags = media_file_tags($r_meta); // FIXME r_tags-only stuff foreach ($l_tags as $key => $l_tag) { if ($l_tag['value'] != $r_tags[$key]['value']) { $r_tags[$key]['highlighted'] = true; $l_tags[$key]['highlighted'] = true; } else if (!$l_tag['value'] || !$r_tags[$key]['value']) { unset($r_tags[$key]); unset($l_tags[$key]); } } echo ''; foreach(array($l_tags,$r_tags) as $tags){ echo ''; } echo ''.NL; echo '


'; media_preview($image, $auth, $l_rev, $l_meta); echo '	'; media_preview($image, $auth, $r_rev, $r_meta); echo '
'; media_preview_buttons($image, $auth, $l_rev); echo '	'; media_preview_buttons($image, $auth, $r_rev); echo '
'.NL; echo ' '; foreach($tags as $tag){ $value = cleanText($tag['value']); if (!$value) $value = '-'; echo ' '.$lang[$tag['tag'][1]].' '; echo ' '; if ($tag['highlighted']) { echo ''; } if ($tag['tag'][2] == 'date') echo dformat($value); else echo hsc($value); if ($tag['highlighted']) { echo ''; } echo ' '; } echo ' '.NL; echo '

'.NL; echo '

'.NL; if ($is_img && !$fromajax) echo ''; } /** * 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 $type */ function media_image_diff($image, $l_rev, $r_rev, $l_size, $r_size, $type) { if ($l_size != $r_size) { if ($r_size[0] > $l_size[0]) { $l_size = $r_size; } } $l_more = array('rev' => $l_rev, 'h' => $l_size[1], 'w' => $l_size[0]); $r_more = array('rev' => $r_rev, 'h' => $l_size[1], 'w' => $l_size[0]); $l_src = ml($image, $l_more); $r_src = ml($image, $r_more); // slider echo '

'.NL; // two images in divs echo '

'.NL; echo '

'; echo '

'.NL; echo '

'; echo '

'.NL; echo '

'.NL; } /** * 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' => $query ); if ($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, 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) media_printfile($item,$item['perm'],'',true); else media_printfile_thumbs($item,$item['perm'],false,true); } if ($fullscreen) echo ''.NL; } } /** * Formats and prints one file in the list * * @param array $item * @param int $auth permission level * @param string $jump item id * @param bool $display_namespace */ function media_printfile($item,$auth,$jump,$display_namespace=false){ global $lang; // 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) = 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; // view button $link = ml($item['id'],'',true); echo '

'; // mediamanager button $link = wl('',array('do'=>'media','image'=>$item['id'],'ns'=>getNS($item['id']))); echo '

'; // delete button if($item['writable'] && $auth >= AUTH_DELETE){ $link = DOKU_BASE.'lib/exe/mediamanager.php?delete='.rawurlencode($item['id']). '&sectok='.getSecurityToken(); echo ' '. '

'; } echo '

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

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

'.NL; 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 '

'; } /** * Formats and prints one file in the list in the thumbnails view * * @author Kate Arzamastseva * * @param array $item * @param int $auth permission level * @param bool|string $jump item id * @param bool $display_namespace */ function media_printfile_thumbs($item,$auth,$jump=false,$display_namespace=false){ // Prepare filename $file = utf8_decodeFN($item['file']); // output echo '

'; if($item['isimg']) { media_printimgdetail($item, true); } else { echo ''; echo media_printicon($item['id'], '32x32'); echo ''; } echo ': '.$name.'; '.$size.'; '.$date.'; '.$filesize.'

'.NL; } /** * Prints a thumbnail and metainfo * * @param array $item * @param bool $fullscreen */ function media_printimgdetail($item, $fullscreen=false){ // prepare thumbnail $size = $fullscreen ? 90 : 120; $w = (int) $item['meta']->getField('File.Width'); $h = (int) $item['meta']->getField('File.Height'); if($w>$size || $h>$size){ if (!$fullscreen) { $ratio = $item['meta']->getResizeRatio($size); } else { $ratio = $item['meta']->getResizeRatio($size,$size); } $w = floor($w * $ratio); $h = floor($h * $ratio); } $src = ml($item['id'],array('w'=>$w,'h'=>$h,'t'=>$item['mtime'])); $p = array(); if (!$fullscreen) { // In fullscreen mediamanager view, image resizing is done via CSS. $p['width'] = $w; $p['height'] = $h; } $p['alt'] = $item['id']; $att = buildAttributes($p); // output if ($fullscreen) { echo ''; echo '

'; echo ''; } if ($fullscreen) return; 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 '

'; } /** * 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 $params = array('id' => 'dw__upload', 'enctype' => 'multipart/form-data'); if (!$fullscreen) { $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php'; } else { $params['action'] = media_managerURL(array('tab_files' => 'files', 'tab_details' => 'view'), '&'); } $form = new Doku_Form($params); if (!$fullscreen) echo '

' . $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')); $form->addElement(form_makeTextField('mediaid', noNS($id), $lang['txt_filename'], 'upload__name')); $form->addElement(form_makeButton('submit', '', $lang['btn_upload'])); $form->addElement(form_makeCloseTag('p')); if($auth >= $auth_ow){ $form->addElement(form_makeOpenTag('p')); $attrs = array(); if ($update) $attrs['checked'] = 'checked'; $form->addElement(form_makeCheckboxField('ow', 1, $lang['txt_overwrt'], 'dw__ow', 'check', $attrs)); $form->addElement(form_makeCloseTag('p')); } echo NL.'

'.NL; html_form('upload', $form); echo '

'.NL; echo '

'; printf($lang['maxuploadsize'],filesize_h(media_getuploadsize())); echo '

'.NL; } /** * 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 $params = array('id' => 'dw__mediasearch'); if (!$fullscreen) { $params['action'] = DOKU_BASE.'lib/exe/mediamanager.php'; } else { $params['action'] = media_managerURL(array(), '&'); } $form = new Doku_Form($params); $form->addHidden('ns', $ns); $form->addHidden($fullscreen ? 'mediado' : '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 * * @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'] <= $level+1 && strnatcmp(utf8_encodeFN($data[$pos]['id']), utf8_encodeFN($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 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){ 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]) / $info[0]); if(!$w) $w = round(($h * $info[0]) / $info[1]); // we wont scale up to infinity if($w > 2000 || $h > 2000) return $file; // resize necessary? - (w,h) = native dimensions if(($w == $info[0]) && ($h == $info[1])) 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, $h) ) { if(!empty($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 * * @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){ 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; // check if the crop can be handled completely by resize, // i.e. the specified width & height match the aspect ratio of the source image if ($w == round($h*$fr)) { return media_resize_image($file, $ext, $w); } if($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(!empty($conf['fperm'])) @chmod($local, $conf['fperm']); return media_resize_image($local,$ext, $w, $h); } //still here? cropping failed return media_resize_image($file,$ext, $w, $h); } /** * 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(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 $ofs_y offset of crop centre * @return bool */ function media_crop_imageIM($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 * * @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 $ofs_y offset of crop centre * @return bool */ function media_resize_imageGD($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 $image = false; if ($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, $to); } } // destroy GD image ressources if($image) imagedestroy($image); if($newimg) 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); } /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

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