| | |
| | | * content_type - The content type for this part eg multipart/mixed |
| | | * encoding - The encoding to use, 7bit, 8bit, |
| | | * base64, or quoted-printable |
| | | * charset - Content character set |
| | | * cid - Content ID to apply |
| | | * disposition - Content disposition, inline or attachment |
| | | * dfilename - Filename parameter for content disposition |
| | | * description - Content description |
| | | * charset - Character set to use |
| | | * name_encoding - Encoding for attachment name (Content-Type) |
| | | * name_encoding - Encoding of the attachment name (Content-Type) |
| | | * By default filenames are encoded using RFC2231 |
| | | * Here you can set RFC2047 encoding (quoted-printable |
| | | * or base64) instead |
| | | * filename_encoding - Encoding for attachment filename (Content-Disposition) |
| | | * filename_encoding - Encoding of the attachment filename (Content-Disposition) |
| | | * See 'name_encoding' |
| | | * headers_charset - Charset of the headers e.g. filename, description. |
| | | * If not set, 'charset' will be used |
| | | * eol - End of line sequence. Default: "\r\n" |
| | | * body_file - Location of file with part's body (instead of $body) |
| | | * |
| | |
| | | $this->_eol = MAIL_MIMEPART_CRLF; |
| | | } |
| | | |
| | | $c_type = array(); |
| | | $c_disp = array(); |
| | | foreach ($params as $key => $value) { |
| | | switch ($key) { |
| | | case 'content_type': |
| | | $c_type['type'] = $value; |
| | | break; |
| | | |
| | | case 'encoding': |
| | | $this->_encoding = $value; |
| | | $headers['Content-Transfer-Encoding'] = $value; |
| | |
| | | |
| | | case 'cid': |
| | | $headers['Content-ID'] = '<' . $value . '>'; |
| | | break; |
| | | |
| | | case 'disposition': |
| | | $c_disp['disp'] = $value; |
| | | break; |
| | | |
| | | case 'dfilename': |
| | | $c_disp['filename'] = $value; |
| | | $c_type['name'] = $value; |
| | | break; |
| | | |
| | | case 'description': |
| | | $headers['Content-Description'] = $value; |
| | | break; |
| | | |
| | | case 'charset': |
| | | $c_type['charset'] = $value; |
| | | $c_disp['charset'] = $value; |
| | | break; |
| | | |
| | | case 'language': |
| | | $c_type['language'] = $value; |
| | | $c_disp['language'] = $value; |
| | | break; |
| | | |
| | | case 'location': |
| | |
| | | } |
| | | } |
| | | |
| | | // Default content-type |
| | | if (empty($params['content_type'])) { |
| | | $params['content_type'] = 'text/plain'; |
| | | } |
| | | |
| | | // Content-Type |
| | | if (isset($c_type['type'])) { |
| | | $headers['Content-Type'] = $c_type['type']; |
| | | if (isset($c_type['name'])) { |
| | | $headers['Content-Type'] .= ';' . $this->_eol; |
| | | $headers['Content-Type'] .= $this->_buildHeaderParam( |
| | | 'name', $c_type['name'], |
| | | isset($c_type['charset']) ? $c_type['charset'] : 'US-ASCII', |
| | | isset($c_type['language']) ? $c_type['language'] : null, |
| | | isset($params['name_encoding']) ? $params['name_encoding'] : null |
| | | ); |
| | | $headers['Content-Type'] = $params['content_type']; |
| | | if (!empty($params['charset'])) { |
| | | $charset = "charset={$params['charset']}"; |
| | | // place charset parameter in the same line, if possible |
| | | if ((strlen($headers['Content-Type']) + strlen($charset) + 16) <= 76) { |
| | | $headers['Content-Type'] .= '; '; |
| | | } else { |
| | | $headers['Content-Type'] .= ';' . $this->_eol . ' '; |
| | | } |
| | | if (isset($c_type['charset'])) { |
| | | $headers['Content-Type'] |
| | | .= ';' . $this->_eol . " charset={$c_type['charset']}"; |
| | | $headers['Content-Type'] .= $charset; |
| | | |
| | | // Default headers charset |
| | | if (!isset($params['headers_charset'])) { |
| | | $params['headers_charset'] = $params['charset']; |
| | | } |
| | | } |
| | | if (!empty($params['filename'])) { |
| | | $headers['Content-Type'] .= ';' . $this->_eol; |
| | | $headers['Content-Type'] .= $this->_buildHeaderParam( |
| | | 'name', $params['filename'], |
| | | !empty($params['headers_charset']) ? $params['headers_charset'] : 'US-ASCII', |
| | | !empty($params['language']) ? $params['language'] : null, |
| | | !empty($params['name_encoding']) ? $params['name_encoding'] : null |
| | | ); |
| | | } |
| | | |
| | | // Content-Disposition |
| | | if (isset($c_disp['disp'])) { |
| | | $headers['Content-Disposition'] = $c_disp['disp']; |
| | | if (isset($c_disp['filename'])) { |
| | | if (!empty($params['disposition'])) { |
| | | $headers['Content-Disposition'] = $params['disposition']; |
| | | if (!empty($params['filename'])) { |
| | | $headers['Content-Disposition'] .= ';' . $this->_eol; |
| | | $headers['Content-Disposition'] .= $this->_buildHeaderParam( |
| | | 'filename', $c_disp['filename'], |
| | | isset($c_disp['charset']) ? $c_disp['charset'] : 'US-ASCII', |
| | | isset($c_disp['language']) ? $c_disp['language'] : null, |
| | | isset($params['filename_encoding']) ? $params['filename_encoding'] : null |
| | | 'filename', $params['filename'], |
| | | !empty($params['headers_charset']) ? $params['headers_charset'] : 'US-ASCII', |
| | | !empty($params['language']) ? $params['language'] : null, |
| | | !empty($params['filename_encoding']) ? $params['filename_encoding'] : null |
| | | ); |
| | | } |
| | | } |
| | | |
| | | // Default content-type |
| | | if (!isset($headers['Content-Type'])) { |
| | | $headers['Content-Type'] = 'text/plain'; |
| | | if (!empty($params['description'])) { |
| | | $headers['Content-Description'] = $this->encodeHeader( |
| | | 'Content-Description', $params['description'], |
| | | !empty($params['headers_charset']) ? $params['headers_charset'] : 'US-ASCII', |
| | | !empty($params['name_encoding']) ? $params['name_encoding'] : 'quoted-printable', |
| | | $this->_eol |
| | | ); |
| | | } |
| | | |
| | | // Default encoding |
| | |
| | | * otherwise you will not be able to add further subparts. |
| | | * @access public |
| | | */ |
| | | function &addSubPart($body, $params) |
| | | function &addSubpart($body, $params) |
| | | { |
| | | $this->_subparts[] = new Mail_mimePart($body, $params); |
| | | return $this->_subparts[count($this->_subparts) - 1]; |
| | |
| | | } |
| | | |
| | | /** |
| | | * Callback function to replace extended characters (\x80-xFF) with their |
| | | * ASCII values (RFC2231) |
| | | * Encodes a header as per RFC2047 |
| | | * |
| | | * @param array $matches Preg_replace's matches array |
| | | * @param string $name The header name |
| | | * @param string $value The header data to encode |
| | | * @param string $charset Character set name |
| | | * @param string $encoding Encoding name (base64 or quoted-printable) |
| | | * @param string $eol End-of-line sequence. Default: "\r\n" |
| | | * |
| | | * @return string Encoded character string |
| | | * @return string Encoded header data (without a name) |
| | | * @access public |
| | | * @since 1.6.1 |
| | | */ |
| | | function encodeHeader($name, $value, $charset='ISO-8859-1', |
| | | $encoding='quoted-printable', $eol="\r\n" |
| | | ) { |
| | | // Structured headers |
| | | $comma_headers = array( |
| | | 'from', 'to', 'cc', 'bcc', 'sender', 'reply-to', |
| | | 'resent-from', 'resent-to', 'resent-cc', 'resent-bcc', |
| | | 'resent-sender', 'resent-reply-to', |
| | | 'return-receipt-to', 'disposition-notification-to', |
| | | ); |
| | | $other_headers = array( |
| | | 'references', 'in-reply-to', 'message-id', 'resent-message-id', |
| | | ); |
| | | |
| | | $name = strtolower($name); |
| | | |
| | | if (in_array($name, $comma_headers)) { |
| | | $separator = ','; |
| | | } else if (in_array($name, $other_headers)) { |
| | | $separator = ' '; |
| | | } |
| | | |
| | | if (!$charset) { |
| | | $charset = 'ISO-8859-1'; |
| | | } |
| | | |
| | | // Structured header (make sure addr-spec inside is not encoded) |
| | | if (!empty($separator)) { |
| | | $parts = Mail_mimePart::_explodeQuotedString($separator, $value); |
| | | $value = ''; |
| | | |
| | | foreach ($parts as $part) { |
| | | $part = preg_replace('/\r?\n[\s\t]*/', $eol . ' ', $part); |
| | | $part = trim($part); |
| | | |
| | | if (!$part) { |
| | | continue; |
| | | } |
| | | if ($value) { |
| | | $value .= $separator==',' ? $separator.' ' : ' '; |
| | | } else { |
| | | $value = $name . ': '; |
| | | } |
| | | |
| | | // let's find phrase (name) and/or addr-spec |
| | | if (preg_match('/^<\S+@\S+>$/', $part)) { |
| | | $value .= $part; |
| | | } else if (preg_match('/^\S+@\S+$/', $part)) { |
| | | // address without brackets and without name |
| | | $value .= $part; |
| | | } else if (preg_match('/<*\S+@\S+>*$/', $part, $matches)) { |
| | | // address with name (handle name) |
| | | $address = $matches[0]; |
| | | $word = str_replace($address, '', $part); |
| | | $word = trim($word); |
| | | // check if phrase requires quoting |
| | | if ($word) { |
| | | // non-ASCII: require encoding |
| | | if (preg_match('#([\x80-\xFF]){1}#', $word)) { |
| | | if ($word[0] == '"' && $word[strlen($word)-1] == '"') { |
| | | // de-quote quoted-string, encoding changes |
| | | // string to atom |
| | | $search = array("\\\"", "\\\\"); |
| | | $replace = array("\"", "\\"); |
| | | $word = str_replace($search, $replace, $word); |
| | | $word = substr($word, 1, -1); |
| | | } |
| | | // find length of last line |
| | | if (($pos = strrpos($value, $eol)) !== false) { |
| | | $last_len = strlen($value) - $pos; |
| | | } else { |
| | | $last_len = strlen($value); |
| | | } |
| | | $word = Mail_mimePart::encodeHeaderValue( |
| | | $word, $charset, $encoding, $last_len, $eol |
| | | ); |
| | | } else if (($word[0] != '"' || $word[strlen($word)-1] != '"') |
| | | && preg_match('/[\(\)\<\>\\\.\[\]@,;:"]/', $word) |
| | | ) { |
| | | // ASCII: quote string if needed |
| | | $word = '"'.addcslashes($word, '\\"').'"'; |
| | | } |
| | | } |
| | | $value .= $word.' '.$address; |
| | | } else { |
| | | // addr-spec not found, don't encode (?) |
| | | $value .= $part; |
| | | } |
| | | |
| | | // RFC2822 recommends 78 characters limit, use 76 from RFC2047 |
| | | $value = wordwrap($value, 76, $eol . ' '); |
| | | } |
| | | |
| | | // remove header name prefix (there could be EOL too) |
| | | $value = preg_replace( |
| | | '/^'.$name.':('.preg_quote($eol, '/').')* /', '', $value |
| | | ); |
| | | |
| | | } else { |
| | | // Unstructured header |
| | | // non-ASCII: require encoding |
| | | if (preg_match('#([\x80-\xFF]){1}#', $value)) { |
| | | if ($value[0] == '"' && $value[strlen($value)-1] == '"') { |
| | | // de-quote quoted-string, encoding changes |
| | | // string to atom |
| | | $search = array("\\\"", "\\\\"); |
| | | $replace = array("\"", "\\"); |
| | | $value = str_replace($search, $replace, $value); |
| | | $value = substr($value, 1, -1); |
| | | } |
| | | $value = Mail_mimePart::encodeHeaderValue( |
| | | $value, $charset, $encoding, strlen($name) + 2, $eol |
| | | ); |
| | | } else if (strlen($name.': '.$value) > 78) { |
| | | // ASCII: check if header line isn't too long and use folding |
| | | $value = preg_replace('/\r?\n[\s\t]*/', $eol . ' ', $value); |
| | | $tmp = wordwrap($name.': '.$value, 78, $eol . ' '); |
| | | $value = preg_replace('/^'.$name.':\s*/', '', $tmp); |
| | | // hard limit 998 (RFC2822) |
| | | $value = wordwrap($value, 998, $eol . ' ', true); |
| | | } |
| | | } |
| | | |
| | | return $value; |
| | | } |
| | | |
| | | /** |
| | | * Explode quoted string |
| | | * |
| | | * @param string $delimiter Delimiter expression string for preg_match() |
| | | * @param string $string Input string |
| | | * |
| | | * @return array String tokens array |
| | | * @access private |
| | | */ |
| | | function _encodeReplaceCallback($matches) |
| | | function _explodeQuotedString($delimiter, $string) |
| | | { |
| | | return sprintf('%%%02X', ord($matches[1])); |
| | | $result = array(); |
| | | $strlen = strlen($string); |
| | | |
| | | for ($q=$p=$i=0; $i < $strlen; $i++) { |
| | | if ($string[$i] == "\"" |
| | | && (empty($string[$i-1]) || $string[$i-1] != "\\") |
| | | ) { |
| | | $q = $q ? false : true; |
| | | } else if (!$q && preg_match("/$delimiter/", $string[$i])) { |
| | | $result[] = substr($string, $p, $i - $p); |
| | | $p = $i + 1; |
| | | } |
| | | } |
| | | |
| | | $result[] = substr($string, $p); |
| | | return $result; |
| | | } |
| | | |
| | | /** |
| | | * Encodes a header value as per RFC2047 |
| | | * |
| | | * @param string $value The header data to encode |
| | | * @param string $charset Character set name |
| | | * @param string $encoding Encoding name (base64 or quoted-printable) |
| | | * @param int $prefix_len Prefix length. Default: 0 |
| | | * @param string $eol End-of-line sequence. Default: "\r\n" |
| | | * |
| | | * @return string Encoded header data |
| | | * @access public |
| | | * @since 1.6.1 |
| | | */ |
| | | function encodeHeaderValue($value, $charset, $encoding, $prefix_len=0, $eol="\r\n") |
| | | { |
| | | // #17311: Use multibyte aware method (requires mbstring extension) |
| | | if ($result = Mail_mimePart::encodeMB($value, $charset, $encoding, $prefix_len, $eol)) { |
| | | return $result; |
| | | } |
| | | |
| | | // Generate the header using the specified params and dynamicly |
| | | // determine the maximum length of such strings. |
| | | // 75 is the value specified in the RFC. |
| | | $encoding = $encoding == 'base64' ? 'B' : 'Q'; |
| | | $prefix = '=?' . $charset . '?' . $encoding .'?'; |
| | | $suffix = '?='; |
| | | $maxLength = 75 - strlen($prefix . $suffix); |
| | | $maxLength1stLine = $maxLength - $prefix_len; |
| | | |
| | | if ($encoding == 'B') { |
| | | // Base64 encode the entire string |
| | | $value = base64_encode($value); |
| | | |
| | | // We can cut base64 every 4 characters, so the real max |
| | | // we can get must be rounded down. |
| | | $maxLength = $maxLength - ($maxLength % 4); |
| | | $maxLength1stLine = $maxLength1stLine - ($maxLength1stLine % 4); |
| | | |
| | | $cutpoint = $maxLength1stLine; |
| | | $output = ''; |
| | | |
| | | while ($value) { |
| | | // Split translated string at every $maxLength |
| | | $part = substr($value, 0, $cutpoint); |
| | | $value = substr($value, $cutpoint); |
| | | $cutpoint = $maxLength; |
| | | // RFC 2047 specifies that any split header should |
| | | // be seperated by a CRLF SPACE. |
| | | if ($output) { |
| | | $output .= $eol . ' '; |
| | | } |
| | | $output .= $prefix . $part . $suffix; |
| | | } |
| | | $value = $output; |
| | | } else { |
| | | // quoted-printable encoding has been selected |
| | | $value = Mail_mimePart::encodeQP($value); |
| | | |
| | | // This regexp will break QP-encoded text at every $maxLength |
| | | // but will not break any encoded letters. |
| | | $reg1st = "|(.{0,$maxLength1stLine}[^\=][^\=])|"; |
| | | $reg2nd = "|(.{0,$maxLength}[^\=][^\=])|"; |
| | | |
| | | if (strlen($value) > $maxLength1stLine) { |
| | | // Begin with the regexp for the first line. |
| | | $reg = $reg1st; |
| | | $output = ''; |
| | | while ($value) { |
| | | // Split translated string at every $maxLength |
| | | // But make sure not to break any translated chars. |
| | | $found = preg_match($reg, $value, $matches); |
| | | |
| | | // After this first line, we need to use a different |
| | | // regexp for the first line. |
| | | $reg = $reg2nd; |
| | | |
| | | // Save the found part and encapsulate it in the |
| | | // prefix & suffix. Then remove the part from the |
| | | // $value_out variable. |
| | | if ($found) { |
| | | $part = $matches[0]; |
| | | $len = strlen($matches[0]); |
| | | $value = substr($value, $len); |
| | | } else { |
| | | $part = $value; |
| | | $value = ''; |
| | | } |
| | | |
| | | // RFC 2047 specifies that any split header should |
| | | // be seperated by a CRLF SPACE |
| | | if ($output) { |
| | | $output .= $eol . ' '; |
| | | } |
| | | $output .= $prefix . $part . $suffix; |
| | | } |
| | | $value = $output; |
| | | } else { |
| | | $value = $prefix . $value . $suffix; |
| | | } |
| | | } |
| | | |
| | | return $value; |
| | | } |
| | | |
| | | /** |
| | |
| | | */ |
| | | function encodeQP($str) |
| | | { |
| | | // Replace all special characters used by the encoder |
| | | $search = array('=', '_', '?', ' '); |
| | | $replace = array('=3D', '=5F', '=3F', '_'); |
| | | $str = str_replace($search, $replace, $str); |
| | | // Bug #17226 RFC 2047 restricts some characters |
| | | // if the word is inside a phrase, permitted chars are only: |
| | | // ASCII letters, decimal digits, "!", "*", "+", "-", "/", "=", and "_" |
| | | |
| | | // Replace all extended characters (\x80-xFF) with their |
| | | // ASCII values. |
| | | return preg_replace_callback( |
| | | '/([\x80-\xFF])/', array('Mail_mimePart', '_qpReplaceCallback'), $str |
| | | // "=", "_", "?" must be encoded |
| | | $regexp = '/([\x22-\x29\x2C\x2E\x3A-\x40\x5B-\x60\x7B-\x7E\x80-\xFF])/'; |
| | | $str = preg_replace_callback( |
| | | $regexp, array('Mail_mimePart', '_qpReplaceCallback'), $str |
| | | ); |
| | | |
| | | return str_replace(' ', '_', $str); |
| | | } |
| | | |
| | | /** |
| | | * Encodes the given string using base64 or quoted-printable. |
| | | * This method makes sure that encoded-word represents an integral |
| | | * number of characters as per RFC2047. |
| | | * |
| | | * @param string $str String to encode |
| | | * @param string $charset Character set name |
| | | * @param string $encoding Encoding name (base64 or quoted-printable) |
| | | * @param int $prefix_len Prefix length. Default: 0 |
| | | * @param string $eol End-of-line sequence. Default: "\r\n" |
| | | * |
| | | * @return string Encoded string |
| | | * @access public |
| | | * @since 1.8.0 |
| | | */ |
| | | function encodeMB($str, $charset, $encoding, $prefix_len=0, $eol="\r\n") |
| | | { |
| | | if (!function_exists('mb_substr') || !function_exists('mb_strlen')) { |
| | | return; |
| | | } |
| | | |
| | | $encoding = $encoding == 'base64' ? 'B' : 'Q'; |
| | | // 75 is the value specified in the RFC |
| | | $prefix = '=?' . $charset . '?'.$encoding.'?'; |
| | | $suffix = '?='; |
| | | $maxLength = 75 - strlen($prefix . $suffix); |
| | | |
| | | // A multi-octet character may not be split across adjacent encoded-words |
| | | // So, we'll loop over each character |
| | | // mb_stlen() with wrong charset will generate a warning here and return null |
| | | $length = mb_strlen($str, $charset); |
| | | $result = ''; |
| | | $line_length = $prefix_len; |
| | | |
| | | if ($encoding == 'B') { |
| | | // base64 |
| | | $start = 0; |
| | | $prev = ''; |
| | | |
| | | for ($i=1; $i<=$length; $i++) { |
| | | // See #17311 |
| | | $chunk = mb_substr($str, $start, $i-$start, $charset); |
| | | $chunk = base64_encode($chunk); |
| | | $chunk_len = strlen($chunk); |
| | | |
| | | if ($line_length + $chunk_len == $maxLength || $i == $length) { |
| | | if ($result) { |
| | | $result .= "\n"; |
| | | } |
| | | $result .= $chunk; |
| | | $line_length = 0; |
| | | $start = $i; |
| | | } else if ($line_length + $chunk_len > $maxLength) { |
| | | if ($result) { |
| | | $result .= "\n"; |
| | | } |
| | | if ($prev) { |
| | | $result .= $prev; |
| | | } |
| | | $line_length = 0; |
| | | $start = $i - 1; |
| | | } else { |
| | | $prev = $chunk; |
| | | } |
| | | } |
| | | } else { |
| | | // quoted-printable |
| | | // see encodeQP() |
| | | $regexp = '/([\x22-\x29\x2C\x2E\x3A-\x40\x5B-\x60\x7B-\x7E\x80-\xFF])/'; |
| | | |
| | | for ($i=0; $i<=$length; $i++) { |
| | | $char = mb_substr($str, $i, 1, $charset); |
| | | // RFC recommends underline (instead of =20) in place of the space |
| | | // that's one of the reasons why we're not using iconv_mime_encode() |
| | | if ($char == ' ') { |
| | | $char = '_'; |
| | | $char_len = 1; |
| | | } else { |
| | | $char = preg_replace_callback( |
| | | $regexp, array('Mail_mimePart', '_qpReplaceCallback'), $char |
| | | ); |
| | | $char_len = strlen($char); |
| | | } |
| | | |
| | | if ($line_length + $char_len > $maxLength) { |
| | | if ($result) { |
| | | $result .= "\n"; |
| | | } |
| | | $line_length = 0; |
| | | } |
| | | |
| | | $result .= $char; |
| | | $line_length += $char_len; |
| | | } |
| | | } |
| | | |
| | | if ($result) { |
| | | $result = $prefix |
| | | .str_replace("\n", $suffix.$eol.' '.$prefix, $result).$suffix; |
| | | } |
| | | |
| | | return $result; |
| | | } |
| | | |
| | | /** |
| | |
| | | return sprintf('=%02X', ord($matches[1])); |
| | | } |
| | | |
| | | /** |
| | | * Callback function to replace extended characters (\x80-xFF) with their |
| | | * ASCII values (RFC2231) |
| | | * |
| | | * @param array $matches Preg_replace's matches array |
| | | * |
| | | * @return string Encoded character string |
| | | * @access private |
| | | */ |
| | | function _encodeReplaceCallback($matches) |
| | | { |
| | | return sprintf('%%%02X', ord($matches[1])); |
| | | } |
| | | |
| | | } // End of class |