ExifTool Forum

<?php/*Plugin Name: Write MetadataDescription: Write Piwigo photo properties (title, description, author, tags) into IPTC fieldsAuthor: plgPlugin URI: http://piwigo.org/ext/extension_view.php?eid=769Version: 12.a*/// +-----------------------------------------------------------------------+// | Define plugin constants                                               |// +-----------------------------------------------------------------------+defined('WRITE_METADATA_ID') or define('WRITE_METADATA_ID', basename(dirname(__FILE__)));define('WRITE_METADATA_PATH' , PHPWG_PLUGINS_PATH.basename(dirname(__FILE__)).'/');// +-----------------------------------------------------------------------+// | Edit Photo                                                            |// +-----------------------------------------------------------------------+add_event_handler('loc_begin_admin_page', 'wm_add_link', 60);function wm_add_link(){  global $template, $page;  $template->set_prefilter('picture_modify', 'wm_add_link_prefilter');  if (isset($page['page']) and 'photo' == $page['page'])  {    $template->assign(      'U_WRITEMETADATA',      get_root_url().'admin.php?page=photo-'.$_GET['image_id'].'-properties&amp;write_metadata=1'      );  }}function wm_add_link_prefilter($content){  $search = '{if !url_is_remote($PATH)}';    $replacement = '{if !url_is_remote($PATH)}  <a class="icon-docs" href="{$U_WRITEMETADATA}" title="{\'Write metadata\'|translate}"></a>';  return str_replace($search, $replacement, $content);}add_event_handler('loc_begin_admin_page', 'wm_picture_write_metadata');function wm_picture_write_metadata(){  global $page, $conf;  load_language('plugin.lang', dirname(__FILE__).'/');    if (isset($page['page']) and 'photo' == $page['page'] and isset($_GET['write_metadata']))  {    check_input_parameter('image_id', $_GET, false, PATTERN_ID);    list($rc, $output) = wm_write_metadata($_GET['image_id']);    if (count($output) == 0)    {      $_SESSION['page_infos'][] = l10n('Metadata written into file');      redirect(get_root_url().'admin.php?page=photo-'.$_GET['image_id'].'-properties');    }    else    {      $page['errors'] = array_merge($page['errors'], $output);    }  }}// +-----------------------------------------------------------------------+// | Batch Manager                                                         |// +-----------------------------------------------------------------------+add_event_handler('loc_begin_element_set_global', 'wm_element_set_global_add_action');function wm_element_set_global_add_action(){  global $template, $page;    $template->set_filename('writeMetadata', realpath(WRITE_METADATA_PATH.'element_set_global_action.tpl'));  if (isset($_POST['submit']) and $_POST['selectAction'] == 'writeMetadata')  {    $page['infos'][] = l10n('Metadata written into file');  }  $template->assign(    array(      'WM_PWG_TOKEN' => get_pwg_token(),      )    );  $template->append(    'element_set_global_plugins_actions',    array(      'ID' => 'writeMetadata',      'NAME' => l10n('Write metadata'),      'CONTENT' => $template->parse('writeMetadata', true),      )    );}add_event_handler('ws_add_methods', 'wm_add_methods');function wm_add_methods($arr){  include_once(WRITE_METADATA_PATH.'ws_functions.inc.php');}// +-----------------------------------------------------------------------+// | Common functions                                                      |// +-----------------------------------------------------------------------+/** * inspired by convert_row_to_file_exiftool method in ExportImageMetadata * class from plugin Tags2File. In plugin write_medata we just skip the * batch command file, and execute directly on server (much more user * friendly...). */function wm_write_metadata($image_id){  global $conf, $logger;    $query = 'SELECT    img.name,    img.comment,    img.author,    img.date_creation,    img.date_available,    GROUP_CONCAT(tags.name) AS tags,    img.path,    img.representative_ext  FROM '.IMAGES_TABLE.' AS img    LEFT OUTER JOIN '.IMAGE_TAG_TABLE.' AS img_tag ON img_tag.image_id = img.id    LEFT OUTER JOIN '.TAGS_TABLE.' AS tags ON tags.id = img_tag.tag_id  WHERE img.id = '.$image_id.'  GROUP BY img.id, img.name, img.comment, img.author, img.path, img.representative_ext;';  $result = pwg_query($query);  $row = pwg_db_fetch_assoc($result);  $name = wm_prepare_string($row['name'], 500);  $description = wm_prepare_string($row['comment'], 10000);  $author = wm_prepare_string($row['author'], 500);  $date_creation = wm_prepare_string($row['date_creation'], 50);  $date_available = wm_prepare_string($row['date_available'], 50);  $command = isset($conf['exiftool_path']) ? $conf['exiftool_path'] : 'exiftool -overwrite_original';  $command.= ' -q';  if (strlen($name) > 0)  {    # 2#105 in iptcparse($imginfo['APP13'])    $command.= ' -m -codedcharacterset=utf8 -IPTC:Headline="'.$name.'"';    # 2#005 in iptcparse($imginfo['APP13'])    $command.= ' -m -codedcharacterset=utf8 -IPTC:ObjectName="'.wm_cutString($name, 64).'"';  }  if (strlen($description) > 0)  {    # 2#120 in iptcparse($imginfo['APP13'])    $command.= ' -m -codedcharacterset=utf8 -IPTC:Caption-Abstract="'.$description.'"';  }  if (strlen($date_creation) > 0)  {    # 2#055 in iptcparse($imginfo['APP13'])    $command.= ' -IPTC:DateCreated="'.$date_creation.'"';  }  if (strlen($date_available) > 0)  {    # 2#030 in iptcparse($imginfo['APP13'])    $command.= ' -IPTC:ReleaseDate="'.$date_available.'"';  }  if (strlen($author) > 0)  {    # 2#080 in iptcparse($imginfo['APP13'])    $iptc_field = 'By-line';    if (      $conf['use_iptc']      and isset($conf['use_iptc_mapping']['author'])      and '2#122' == $conf['use_iptc_mapping']['author']      )    {      # 2#122 in iptcparse($imginfo['APP13'])      $iptc_field = 'Writer-Editor';    }    $command.= ' -m -codedcharacterset=utf8 -IPTC:'.$iptc_field.'="'.$author.'"';  }    if (strlen($row['tags']) > 0)  {    $tags = explode(',', $row['tags']);    foreach ($tags as $tag)    {      $tag = wm_prepare_string($tag, 64);      # 2#025 in iptcparse($imginfo['APP13'])      $command.= ' -m -codedcharacterset=utf8 -IPTC:Keywords="'.$tag.'"';    }  }  $command.= ' "'.$row['path'].'"';  $command.= ' 2>&1';  // echo $command;  $logger->info(__FUNCTION__.' command = '.$command);  $exec_return = exec($command, $output, $rc);  // echo '$exec_return = '.$exec_return.'<br>';  // echo '<pre>'; print_r($output); echo '</pre>';  // as derivatives may contain metadata, they must be reset  delete_element_derivatives($row);  return array($rc, $output);}function wm_prepare_string($string, $maxLen){  return wm_cutString(    wm_explode_description(      wm_decode_html_string_to_unicode($string)      ),    $maxLen    );}function wm_cutString($description, $maxLen){  if (strlen($description) > $maxLen)  {    $description = substr($description, 0, $maxLen);  }  return $description;}function wm_explode_description($description){  return str_replace(    array('<br>', '<br />', "\n", "\r"),    array('', '', '', ''),    $description    );}function wm_decode_html_string_to_unicode($string){  if (isset($string) and strlen($string) > 0)  {    $string = html_entity_decode(trim($string), ENT_QUOTES, 'UTF8');    $string = stripslashes($string);  }  else  {    $string = '';  }    return($string);}?>