276 lines
9.0 KiB
PHP
276 lines
9.0 KiB
PHP
<?php
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* If you did not receive a copy of the license and are unable to
|
|
* obtain it through the world-wide-web, please send an email
|
|
* to license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Mime
|
|
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* @see Zend_Mime
|
|
*/
|
|
|
|
/**
|
|
* @category Zend
|
|
* @package Zend_Mime
|
|
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
class Zend_Mime_Decode
|
|
{
|
|
/**
|
|
* Explode MIME multipart string into seperate parts
|
|
*
|
|
* Parts consist of the header and the body of each MIME part.
|
|
*
|
|
* @param string $body raw body of message
|
|
* @param string $boundary boundary as found in content-type
|
|
* @return array parts with content of each part, empty if no parts found
|
|
* @throws Zend_Exception
|
|
*/
|
|
public static function splitMime($body, $boundary)
|
|
{
|
|
// TODO: we're ignoring \r for now - is this function fast enough and is it safe to asume noone needs \r?
|
|
$body = str_replace("\r", '', $body);
|
|
|
|
$start = 0;
|
|
$res = array();
|
|
// find every mime part limiter and cut out the
|
|
// string before it.
|
|
// the part before the first boundary string is discarded:
|
|
$p = strpos($body, '--' . $boundary . "\n", $start);
|
|
if ($p === false) {
|
|
// no parts found!
|
|
return array();
|
|
}
|
|
|
|
// position after first boundary line
|
|
$start = $p + 3 + strlen($boundary);
|
|
|
|
while (($p = strpos($body, '--' . $boundary . "\n", $start)) !== false) {
|
|
$res[] = substr($body, $start, $p-$start);
|
|
$start = $p + 3 + strlen($boundary);
|
|
}
|
|
|
|
// no more parts, find end boundary
|
|
$p = strpos($body, '--' . $boundary . '--', $start);
|
|
if ($p === false) {
|
|
throw new Zend_Exception('Not a valid Mime Message: End Missing');
|
|
}
|
|
|
|
// the remaining part also needs to be parsed:
|
|
$res[] = substr($body, $start, $p - $start);
|
|
|
|
return $res;
|
|
}
|
|
|
|
/**
|
|
* decodes a mime encoded String and returns a
|
|
* struct of parts with header and body
|
|
*
|
|
* @param string $message raw message content
|
|
* @param string $boundary boundary as found in content-type
|
|
* @param string $EOL EOL string; defaults to {@link Zend_Mime::LINEEND}
|
|
* @return array|null parts as array('header' => array(name => value), 'body' => content), null if no parts found
|
|
* @throws Zend_Exception
|
|
*/
|
|
public static function splitMessageStruct(
|
|
$message, $boundary, $EOL = Zend_Mime::LINEEND
|
|
)
|
|
{
|
|
$parts = self::splitMime($message, $boundary);
|
|
if (count($parts) <= 0) {
|
|
return null;
|
|
}
|
|
$result = array();
|
|
foreach ($parts as $part) {
|
|
self::splitMessage($part, $headers, $body, $EOL);
|
|
$result[] = array(
|
|
'header' => $headers,
|
|
'body' => $body
|
|
);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* split a message in header and body part, if no header or an
|
|
* invalid header is found $headers is empty
|
|
*
|
|
* The charset of the returned headers depend on your iconv settings.
|
|
*
|
|
* @param string $message raw message with header and optional content
|
|
* @param array $headers output param, array with headers as array(name => value)
|
|
* @param string $body output param, content of message
|
|
* @param string $EOL EOL string; defaults to {@link Zend_Mime::LINEEND}
|
|
* @return null
|
|
*/
|
|
public static function splitMessage(
|
|
$message, &$headers, &$body, $EOL = Zend_Mime::LINEEND
|
|
)
|
|
{
|
|
// check for valid header at first line
|
|
$firstline = strtok($message, "\n");
|
|
if (!preg_match('%^[^\s]+[^:]*:%', $firstline)) {
|
|
$headers = array();
|
|
// TODO: we're ignoring \r for now - is this function fast enough and is it safe to asume noone needs \r?
|
|
$body = str_replace(
|
|
array(
|
|
"\r",
|
|
"\n"
|
|
), array(
|
|
'',
|
|
$EOL
|
|
), $message
|
|
);
|
|
|
|
return;
|
|
}
|
|
|
|
// find an empty line between headers and body
|
|
// default is set new line
|
|
if (strpos($message, $EOL . $EOL)) {
|
|
list($headers, $body) = explode($EOL . $EOL, $message, 2);
|
|
// next is the standard new line
|
|
} else {
|
|
if ($EOL != "\r\n" && strpos($message, "\r\n\r\n")) {
|
|
list($headers, $body) = explode("\r\n\r\n", $message, 2);
|
|
// next is the other "standard" new line
|
|
} else {
|
|
if ($EOL != "\n" && strpos($message, "\n\n")) {
|
|
list($headers, $body) = explode("\n\n", $message, 2);
|
|
// at last resort find anything that looks like a new line
|
|
} else {
|
|
@list($headers, $body) =
|
|
@preg_split("%([\r\n]+)\\1%U", $message, 2);
|
|
}
|
|
}
|
|
}
|
|
|
|
$headers = iconv_mime_decode_headers(
|
|
$headers, ICONV_MIME_DECODE_CONTINUE_ON_ERROR
|
|
);
|
|
|
|
if ($headers === false) {
|
|
// an error occurs during the decoding
|
|
return;
|
|
}
|
|
|
|
// normalize header names
|
|
foreach ($headers as $name => $header) {
|
|
$lower = strtolower($name);
|
|
if ($lower == $name) {
|
|
continue;
|
|
}
|
|
unset($headers[$name]);
|
|
if (!isset($headers[$lower])) {
|
|
$headers[$lower] = $header;
|
|
continue;
|
|
}
|
|
if (is_array($headers[$lower])) {
|
|
$headers[$lower][] = $header;
|
|
continue;
|
|
}
|
|
$headers[$lower] = array(
|
|
$headers[$lower],
|
|
$header
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* split a content type in its different parts
|
|
*
|
|
* @param string $type content-type
|
|
* @param string $wantedPart the wanted part, else an array with all parts is returned
|
|
* @return string|array wanted part or all parts as array('type' => content-type, partname => value)
|
|
*/
|
|
public static function splitContentType($type, $wantedPart = null)
|
|
{
|
|
return self::splitHeaderField($type, $wantedPart, 'type');
|
|
}
|
|
|
|
/**
|
|
* split a header field like content type in its different parts
|
|
*
|
|
* @param string $field
|
|
* @param string $wantedPart the wanted part, else an array with all parts is returned
|
|
* @param int|string $firstName key name for the first part
|
|
* @throws Zend_Exception
|
|
* @return string|array wanted part or all parts as array($firstName => firstPart, partname => value)
|
|
*/
|
|
public static function splitHeaderField(
|
|
$field, $wantedPart = null, $firstName = 0
|
|
)
|
|
{
|
|
$wantedPart = strtolower($wantedPart);
|
|
$firstName = strtolower($firstName);
|
|
|
|
// special case - a bit optimized
|
|
if ($firstName === $wantedPart) {
|
|
$field = strtok($field, ';');
|
|
|
|
return $field[0] == '"' ? substr($field, 1, -1) : $field;
|
|
}
|
|
|
|
$field = $firstName . '=' . $field;
|
|
if (!preg_match_all('%([^=\s]+)\s*=\s*("[^"]+"|[^;]+)(;\s*|$)%', $field, $matches)) {
|
|
throw new Zend_Exception('not a valid header field');
|
|
}
|
|
|
|
if ($wantedPart) {
|
|
foreach ($matches[1] as $key => $name) {
|
|
if (strcasecmp($name, $wantedPart)) {
|
|
continue;
|
|
}
|
|
if ($matches[2][$key][0] != '"') {
|
|
return $matches[2][$key];
|
|
}
|
|
|
|
return substr($matches[2][$key], 1, -1);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
$split = array();
|
|
foreach ($matches[1] as $key => $name) {
|
|
$name = strtolower($name);
|
|
if ($matches[2][$key][0] == '"') {
|
|
$split[$name] = substr($matches[2][$key], 1, -1);
|
|
} else {
|
|
$split[$name] = $matches[2][$key];
|
|
}
|
|
}
|
|
|
|
return $split;
|
|
}
|
|
|
|
/**
|
|
* decode a quoted printable encoded string
|
|
*
|
|
* The charset of the returned string depends on your iconv settings.
|
|
*
|
|
* @param string $string Encoded string
|
|
* @return string Decoded string
|
|
*/
|
|
public static function decodeQuotedPrintable($string)
|
|
{
|
|
return quoted_printable_decode($string);
|
|
}
|
|
}
|