Allow for plugins to enhance the number of metadata fields captured from plugin and theme headers. See #8964 props strider72.

git-svn-id: http://svn.automattic.com/wordpress/trunk@12044 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
westi
2009-10-15 21:07:00 +00:00
parent 995ff3cd3c
commit c26e33b939
3 changed files with 109 additions and 70 deletions

View File

@@ -3418,4 +3418,65 @@ function wp_scheduled_delete() {
wp_delete_comment($comment['comment_id']);
}
}
?>
/**
* Parse the file contents to retrieve its metadata.
*
* Searches for metadata for a file, such as a plugin or theme. Each piece of
* metadata must be on its own line. For a field spanning multple lines, it
* must not have any newlines or only parts of it will be displayed.
*
* Some users have issues with opening large files and manipulating the contents
* for want is usually the first 1kiB or 2kiB. This function stops pulling in
* the file contents when it has all of the required data.
*
* The first 8kiB of the file will be pulled in and if the file data is not
* within that first 8kiB, then the author should correct their plugin file
* and move the data headers to the top.
*
* The file is assumed to have permissions to allow for scripts to read
* the file. This is not checked however and the file is only opened for
* reading.
*
* @since 2.9.0
*
* @param string $file Path to the file
* @param bool $markup If the returned data should have HTML markup applied
* @param string $context If specified adds filter hook "extra_<$context>_headers"
*/
function get_file_data( $file, $default_headers, $context = '' ) {
// We don't need to write to the file, so just open for reading.
$fp = fopen( $file, 'r' );
// Pull only the first 8kiB of the file in.
$file_data = fread( $fp, 8192 );
// PHP will close file handle, but we are good citizens.
fclose( $fp );
if( $context != '' ) {
$extra_headers = apply_filters( "extra_$context".'_headers', array() );
$extra_headers = array_flip( $extra_headers );
foreach( $extra_headers as $key=>$value ) {
$extra_headers[$key] = $key;
}
$all_headers = array_merge($extra_headers, $default_headers);
} else {
$all_headers = $default_headers;
}
foreach ( $all_headers as $field => $regex ) {
preg_match( '/' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, ${$field});
if ( !empty( ${$field} ) )
${$field} = _cleanup_header_comment( ${$field}[1] );
else
${$field} = '';
}
$file_data = compact( array_keys( $all_headers ) );
return $file_data;
}
?>