| | |
| | | return implode("\r\n", $text); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Improved wordwrap function. |
| | | * |
| | | * @param string $string Text to wrap |
| | | * @param int $width Line width |
| | | * @param string $break Line separator |
| | | * @param bool $cut Enable to cut word |
| | | * |
| | | * @return string Text |
| | | */ |
| | | public static function wordwrap($string, $width=75, $break="\n", $cut=false) |
| | | { |
| | | $para = explode($break, $string); |
| | | $string = ''; |
| | | |
| | | while (count($para)) { |
| | | $line = array_shift($para); |
| | | if ($line[0] == '>') { |
| | | $string .= $line.$break; |
| | | continue; |
| | | } |
| | | |
| | | $list = explode(' ', $line); |
| | | $len = 0; |
| | | while (count($list)) { |
| | | $line = array_shift($list); |
| | | $l = mb_strlen($line); |
| | | $newlen = $len + $l + ($len ? 1 : 0); |
| | | |
| | | if ($newlen <= $width) { |
| | | $string .= ($len ? ' ' : '').$line; |
| | | $len += (1 + $l); |
| | | } |
| | | else { |
| | | if ($l > $width) { |
| | | if ($cut) { |
| | | $start = 0; |
| | | while ($l) { |
| | | $str = mb_substr($line, $start, $width); |
| | | $strlen = mb_strlen($str); |
| | | $string .= ($len ? $break : '').$str; |
| | | $start += $strlen; |
| | | $l -= $strlen; |
| | | $len = $strlen; |
| | | } |
| | | } |
| | | else { |
| | | $string .= ($len ? $break : '').$line; |
| | | if (count($list)) { |
| | | $string .= $break; |
| | | } |
| | | $len = 0; |
| | | } |
| | | } |
| | | else { |
| | | $string .= $break.$line; |
| | | $len = $l; |
| | | } |
| | | } |
| | | } |
| | | |
| | | if (count($para)) { |
| | | $string .= $break; |
| | | } |
| | | } |
| | | |
| | | return $string; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * A method to guess the mime_type of an attachment. |
| | | * |
| | | * @param string $path Path to the file. |
| | | * @param string $name File name (with suffix) |
| | | * @param string $failover Mime type supplied for failover. |
| | | * @param string $is_stream Set to True if $path contains file body |
| | | * |
| | | * @return string |
| | | * @author Till Klampaeckel <till@php.net> |
| | | * @see http://de2.php.net/manual/en/ref.fileinfo.php |
| | | * @see http://de2.php.net/mime_content_type |
| | | */ |
| | | public static function file_content_type($path, $name, $failover = 'application/octet-stream', $is_stream = false) |
| | | { |
| | | $mime_type = null; |
| | | $mime_magic = rcube::get_instance()->config->get('mime_magic'); |
| | | $mime_ext = @include RCMAIL_CONFIG_DIR . '/mimetypes.php'; |
| | | |
| | | // use file name suffix with hard-coded mime-type map |
| | | if (is_array($mime_ext) && $name) { |
| | | if ($suffix = substr($name, strrpos($name, '.')+1)) { |
| | | $mime_type = $mime_ext[strtolower($suffix)]; |
| | | } |
| | | } |
| | | |
| | | // try fileinfo extension if available |
| | | if (!$mime_type && function_exists('finfo_open')) { |
| | | if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) { |
| | | if ($is_stream) |
| | | $mime_type = finfo_buffer($finfo, $path); |
| | | else |
| | | $mime_type = finfo_file($finfo, $path); |
| | | finfo_close($finfo); |
| | | } |
| | | } |
| | | |
| | | // try PHP's mime_content_type |
| | | if (!$mime_type && !$is_stream && function_exists('mime_content_type')) { |
| | | $mime_type = @mime_content_type($path); |
| | | } |
| | | |
| | | // fall back to user-submitted string |
| | | if (!$mime_type) { |
| | | $mime_type = $failover; |
| | | } |
| | | else { |
| | | // Sometimes (PHP-5.3?) content-type contains charset definition, |
| | | // Remove it (#1487122) also "charset=binary" is useless |
| | | $mime_type = array_shift(preg_split('/[; ]/', $mime_type)); |
| | | } |
| | | |
| | | return $mime_type; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Detect image type of the given binary data by checking magic numbers. |
| | | * |
| | | * @param string $data Binary file content |
| | | * |
| | | * @return string Detected mime-type or jpeg as fallback |
| | | */ |
| | | public static function image_content_type($data) |
| | | { |
| | | $type = 'jpeg'; |
| | | if (preg_match('/^\x89\x50\x4E\x47/', $data)) $type = 'png'; |
| | | else if (preg_match('/^\x47\x49\x46\x38/', $data)) $type = 'gif'; |
| | | else if (preg_match('/^\x00\x00\x01\x00/', $data)) $type = 'ico'; |
| | | // else if (preg_match('/^\xFF\xD8\xFF\xE0/', $data)) $type = 'jpeg'; |
| | | |
| | | return 'image/' . $type; |
| | | } |
| | | |
| | | } |