From 8b92d2b0507a98dfd380553c64765bcfdecc6fe3 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Wed, 25 Jan 2012 15:18:15 -0500
Subject: [PATCH] Add lib for server side mime parsing (to be used by non-imap storage backends or as fallback if imap server doesn't provide a proper structure)
---
program/include/rcube_mime.php | 63 +++
program/include/rcube_message.php | 18
program/lib/Mail/mimeDecode.php | 1003 ++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 1,074 insertions(+), 10 deletions(-)
diff --git a/program/include/rcube_message.php b/program/include/rcube_message.php
index abc6b59..d0959ef 100644
--- a/program/include/rcube_message.php
+++ b/program/include/rcube_message.php
@@ -40,11 +40,11 @@
private $app;
/**
- * Instance of imap class
+ * Instance of storage class
*
- * @var rcube_imap
+ * @var rcube_storage
*/
- private $imap;
+ private $storage;
/**
* Instance of mime class
@@ -73,7 +73,7 @@
*
* @param string $uid The message UID.
*
- * @see self::$app, self::$imap, self::$opt, self::$structure
+ * @see self::$app, self::$storage, self::$opt, self::$parts
*/
function __construct($uid)
{
@@ -172,7 +172,7 @@
{
if ($part = $this->mime_parts[$mime_id]) {
// stored in message structure (winmail/inline-uuencode)
- if ($part->encoding == 'stream') {
+ if (!empty($part->body) || $part->encoding == 'stream') {
if ($fp) {
fwrite($fp, $part->body);
}
@@ -214,7 +214,7 @@
foreach ($this->mime_parts as $mime_id => $part) {
$mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
if ($mimetype == 'text/html') {
- return $this->storage->get_message_part($this->uid, $mime_id, $part);
+ return $this->get_part_content($mime_id);
}
}
}
@@ -237,10 +237,10 @@
$mimetype = $part->ctype_primary . '/' . $part->ctype_secondary;
if ($mimetype == 'text/plain') {
- return $this->storage->get_message_part($this->uid, $mime_id, $part);
+ return $this->get_part_content($mime_id);
}
else if ($mimetype == 'text/html') {
- $out = $this->storage->get_message_part($this->uid, $mime_id, $part);
+ $out = $this->get_part_content($mime_id);
// remove special chars encoding
$trans = array_flip(get_html_translation_table(HTML_ENTITIES));
@@ -258,7 +258,7 @@
/**
- * Raad the message structure returend by the IMAP server
+ * Read the message structure returend by the IMAP server
* and build flat lists of content parts and attachments
*
* @param rcube_message_part $structure Message structure node
diff --git a/program/include/rcube_mime.php b/program/include/rcube_mime.php
index bae3ac3..bc0b2aa 100644
--- a/program/include/rcube_mime.php
+++ b/program/include/rcube_mime.php
@@ -1,6 +1,6 @@
<?php
-/**
+/*
+-----------------------------------------------------------------------+
| program/include/rcube_mime.php |
| |
@@ -52,6 +52,67 @@
/**
+ * Parse the given raw message source and return a structure
+ * of rcube_message_part objects.
+ *
+ * It makes use of the PEAR:Mail_mimeDecode library
+ *
+ * @param string The message source
+ * @return object rcube_message_part The message structure
+ */
+ public static function parse_message($raw_body)
+ {
+ $mime = new Mail_mimeDecode($raw_body);
+ $struct = $mime->decode(array('include_bodies' => true, 'decode_bodies' => true));
+ return self::structure_part($struct);
+ }
+
+
+ /**
+ * Recursive method to convert a Mail_mimeDecode part into a rcube_message_part object
+ *
+ * @param object A message part struct
+ * @param int Part count
+ * @param string Parent MIME ID
+ *
+ * @return object rcube_message_part
+ */
+ private static function structure_part($part, $count=0, $parent='')
+ {
+ $struct = new rcube_message_part;
+ $struct->mime_id = $part->mime_id ? $part->mime_id : (empty($parent) ? (string)$count : "$parent.$count");
+ $struct->headers = $part->headers;
+ $struct->ctype_primary = $part->ctype_primary;
+ $struct->ctype_secondary = $part->ctype_secondary;
+ $struct->mimetype = $part->ctype_primary . '/' . $part->ctype_secondary;
+ $struct->ctype_parameters = $part->ctype_parameters;
+
+ if ($part->headers['content-transfer-encoding'])
+ $struct->encoding = $part->headers['content-transfer-encoding'];
+ if ($part->ctype_parameters['charset'])
+ $struct->charset = $part->ctype_parameters['charset'];
+
+ $part_charset = $struct->charset ? $struct->charset : self::$default_charset;
+
+ // TODO: determine filename
+ if (($filename = $part->d_parameters['filename']) || ($filename = $part->ctype_parameters['name'])) {
+ $struct->filename = rcube_mime::decode_mime_string($filename, $part_charset);
+ }
+
+ // copy part body and convert it to UTF-8 if necessary
+ $struct->body = $part->ctype_primary == 'text' ? rcube_charset::convert($part->body, $part_charset) : $part->body;
+ $struct->size = strlen($part->body);
+ $struct->disposition = $part->disposition;
+
+ foreach ((array)$part->parts as $child_part) {
+ $struct->parts[] = self::structure_part($child_part, ++$count, $struct->mime_id);
+ }
+
+ return $struct;
+ }
+
+
+ /**
* Split an address list into a structured array list
*
* @param string $input Input string
diff --git a/program/lib/Mail/mimeDecode.php b/program/lib/Mail/mimeDecode.php
new file mode 100644
index 0000000..677d245
--- /dev/null
+++ b/program/lib/Mail/mimeDecode.php
@@ -0,0 +1,1003 @@
+<?php
+/**
+ * The Mail_mimeDecode class is used to decode mail/mime messages
+ *
+ * This class will parse a raw mime email and return
+ * the structure. Returned structure is similar to
+ * that returned by imap_fetchstructure().
+ *
+ * +----------------------------- IMPORTANT ------------------------------+
+ * | Usage of this class compared to native php extensions such as |
+ * | mailparse or imap, is slow and may be feature deficient. If available|
+ * | you are STRONGLY recommended to use the php extensions. |
+ * +----------------------------------------------------------------------+
+ *
+ * Compatible with PHP versions 4 and 5
+ *
+ * LICENSE: This LICENSE is in the BSD license style.
+ * Copyright (c) 2002-2003, Richard Heyes <richard@phpguru.org>
+ * Copyright (c) 2003-2006, PEAR <pear-group@php.net>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * - Neither the name of the authors, nor the names of its contributors
+ * may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category Mail
+ * @package Mail_Mime
+ * @author Richard Heyes <richard@phpguru.org>
+ * @author George Schlossnagle <george@omniti.com>
+ * @author Cipriano Groenendal <cipri@php.net>
+ * @author Sean Coates <sean@php.net>
+ * @copyright 2003-2006 PEAR <pear-group@php.net>
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @version CVS: $Id$
+ * @link http://pear.php.net/package/Mail_mime
+ */
+
+
+/**
+ * require PEAR
+ *
+ * This package depends on PEAR to raise errors.
+ */
+require_once 'PEAR.php';
+
+
+/**
+ * The Mail_mimeDecode class is used to decode mail/mime messages
+ *
+ * This class will parse a raw mime email and return the structure.
+ * Returned structure is similar to that returned by imap_fetchstructure().
+ *
+ * +----------------------------- IMPORTANT ------------------------------+
+ * | Usage of this class compared to native php extensions such as |
+ * | mailparse or imap, is slow and may be feature deficient. If available|
+ * | you are STRONGLY recommended to use the php extensions. |
+ * +----------------------------------------------------------------------+
+ *
+ * @category Mail
+ * @package Mail_Mime
+ * @author Richard Heyes <richard@phpguru.org>
+ * @author George Schlossnagle <george@omniti.com>
+ * @author Cipriano Groenendal <cipri@php.net>
+ * @author Sean Coates <sean@php.net>
+ * @copyright 2003-2006 PEAR <pear-group@php.net>
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @version Release: @package_version@
+ * @link http://pear.php.net/package/Mail_mime
+ */
+class Mail_mimeDecode extends PEAR
+{
+ /**
+ * The raw email to decode
+ *
+ * @var string
+ * @access private
+ */
+ var $_input;
+
+ /**
+ * The header part of the input
+ *
+ * @var string
+ * @access private
+ */
+ var $_header;
+
+ /**
+ * The body part of the input
+ *
+ * @var string
+ * @access private
+ */
+ var $_body;
+
+ /**
+ * If an error occurs, this is used to store the message
+ *
+ * @var string
+ * @access private
+ */
+ var $_error;
+
+ /**
+ * Flag to determine whether to include bodies in the
+ * returned object.
+ *
+ * @var boolean
+ * @access private
+ */
+ var $_include_bodies;
+
+ /**
+ * Flag to determine whether to decode bodies
+ *
+ * @var boolean
+ * @access private
+ */
+ var $_decode_bodies;
+
+ /**
+ * Flag to determine whether to decode headers
+ *
+ * @var boolean
+ * @access private
+ */
+ var $_decode_headers;
+
+ /**
+ * Flag to determine whether to include attached messages
+ * as body in the returned object. Depends on $_include_bodies
+ *
+ * @var boolean
+ * @access private
+ */
+ var $_rfc822_bodies;
+
+ /**
+ * Constructor.
+ *
+ * Sets up the object, initialise the variables, and splits and
+ * stores the header and body of the input.
+ *
+ * @param string The input to decode
+ * @access public
+ */
+ function Mail_mimeDecode($input)
+ {
+ list($header, $body) = $this->_splitBodyHeader($input);
+
+ $this->_input = $input;
+ $this->_header = $header;
+ $this->_body = $body;
+ $this->_decode_bodies = false;
+ $this->_include_bodies = true;
+ $this->_rfc822_bodies = false;
+ }
+
+ /**
+ * Begins the decoding process. If called statically
+ * it will create an object and call the decode() method
+ * of it.
+ *
+ * @param array An array of various parameters that determine
+ * various things:
+ * include_bodies - Whether to include the body in the returned
+ * object.
+ * decode_bodies - Whether to decode the bodies
+ * of the parts. (Transfer encoding)
+ * decode_headers - Whether to decode headers
+ * input - If called statically, this will be treated
+ * as the input
+ * @return object Decoded results
+ * @access public
+ */
+ function decode($params = null)
+ {
+ // determine if this method has been called statically
+ $isStatic = empty($this) || !is_a($this, __CLASS__);
+
+ // Have we been called statically?
+ // If so, create an object and pass details to that.
+ if ($isStatic AND isset($params['input'])) {
+
+ $obj = new Mail_mimeDecode($params['input']);
+ $structure = $obj->decode($params);
+
+ // Called statically but no input
+ } elseif ($isStatic) {
+ return PEAR::raiseError('Called statically and no input given');
+
+ // Called via an object
+ } else {
+ $this->_include_bodies = isset($params['include_bodies']) ?
+ $params['include_bodies'] : false;
+ $this->_decode_bodies = isset($params['decode_bodies']) ?
+ $params['decode_bodies'] : false;
+ $this->_decode_headers = isset($params['decode_headers']) ?
+ $params['decode_headers'] : false;
+ $this->_rfc822_bodies = isset($params['rfc_822bodies']) ?
+ $params['rfc_822bodies'] : false;
+
+ $structure = $this->_decode($this->_header, $this->_body);
+ if ($structure === false) {
+ $structure = $this->raiseError($this->_error);
+ }
+ }
+
+ return $structure;
+ }
+
+ /**
+ * Performs the decoding. Decodes the body string passed to it
+ * If it finds certain content-types it will call itself in a
+ * recursive fashion
+ *
+ * @param string Header section
+ * @param string Body section
+ * @return object Results of decoding process
+ * @access private
+ */
+ function _decode($headers, $body, $default_ctype = 'text/plain')
+ {
+ $return = new stdClass;
+ $return->headers = array();
+ $headers = $this->_parseHeaders($headers);
+
+ foreach ($headers as $value) {
+ $value['value'] = $this->_decode_headers ? $this->_decodeHeader($value['value']) : $value['value'];
+ if (isset($return->headers[strtolower($value['name'])]) AND !is_array($return->headers[strtolower($value['name'])])) {
+ $return->headers[strtolower($value['name'])] = array($return->headers[strtolower($value['name'])]);
+ $return->headers[strtolower($value['name'])][] = $value['value'];
+
+ } elseif (isset($return->headers[strtolower($value['name'])])) {
+ $return->headers[strtolower($value['name'])][] = $value['value'];
+
+ } else {
+ $return->headers[strtolower($value['name'])] = $value['value'];
+ }
+ }
+
+
+ foreach ($headers as $key => $value) {
+ $headers[$key]['name'] = strtolower($headers[$key]['name']);
+ switch ($headers[$key]['name']) {
+
+ case 'content-type':
+ $content_type = $this->_parseHeaderValue($headers[$key]['value']);
+
+ if (preg_match('/([0-9a-z+.-]+)\/([0-9a-z+.-]+)/i', $content_type['value'], $regs)) {
+ $return->ctype_primary = $regs[1];
+ $return->ctype_secondary = $regs[2];
+ }
+
+ if (isset($content_type['other'])) {
+ foreach($content_type['other'] as $p_name => $p_value) {
+ $return->ctype_parameters[$p_name] = $p_value;
+ }
+ }
+ break;
+
+ case 'content-disposition':
+ $content_disposition = $this->_parseHeaderValue($headers[$key]['value']);
+ $return->disposition = $content_disposition['value'];
+ if (isset($content_disposition['other'])) {
+ foreach($content_disposition['other'] as $p_name => $p_value) {
+ $return->d_parameters[$p_name] = $p_value;
+ }
+ }
+ break;
+
+ case 'content-transfer-encoding':
+ $content_transfer_encoding = $this->_parseHeaderValue($headers[$key]['value']);
+ break;
+ }
+ }
+
+ if (isset($content_type)) {
+ switch (strtolower($content_type['value'])) {
+ case 'text/plain':
+ $encoding = isset($content_transfer_encoding) ? $content_transfer_encoding['value'] : '7bit';
+ $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $encoding) : $body) : null;
+ break;
+
+ case 'text/html':
+ $encoding = isset($content_transfer_encoding) ? $content_transfer_encoding['value'] : '7bit';
+ $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $encoding) : $body) : null;
+ break;
+
+ case 'multipart/parallel':
+ case 'multipart/appledouble': // Appledouble mail
+ case 'multipart/report': // RFC1892
+ case 'multipart/signed': // PGP
+ case 'multipart/digest':
+ case 'multipart/alternative':
+ case 'multipart/related':
+ case 'multipart/mixed':
+ case 'application/vnd.wap.multipart.related':
+ if(!isset($content_type['other']['boundary'])){
+ $this->_error = 'No boundary found for ' . $content_type['value'] . ' part';
+ return false;
+ }
+
+ $default_ctype = (strtolower($content_type['value']) === 'multipart/digest') ? 'message/rfc822' : 'text/plain';
+
+ $parts = $this->_boundarySplit($body, $content_type['other']['boundary']);
+ for ($i = 0; $i < count($parts); $i++) {
+ list($part_header, $part_body) = $this->_splitBodyHeader($parts[$i]);
+ $part = $this->_decode($part_header, $part_body, $default_ctype);
+ if($part === false)
+ $part = $this->raiseError($this->_error);
+ $return->parts[] = $part;
+ }
+ break;
+
+ case 'message/rfc822':
+ if ($this->_rfc822_bodies) {
+ $encoding = isset($content_transfer_encoding) ? $content_transfer_encoding['value'] : '7bit';
+ $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $encoding) : $body);
+ }
+ $obj = new Mail_mimeDecode($body);
+ $return->parts[] = $obj->decode(array('include_bodies' => $this->_include_bodies,
+ 'decode_bodies' => $this->_decode_bodies,
+ 'decode_headers' => $this->_decode_headers));
+ unset($obj);
+ break;
+
+ default:
+ if(!isset($content_transfer_encoding['value']))
+ $content_transfer_encoding['value'] = '7bit';
+ $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $content_transfer_encoding['value']) : $body) : null;
+ break;
+ }
+
+ } else {
+ $ctype = explode('/', $default_ctype);
+ $return->ctype_primary = $ctype[0];
+ $return->ctype_secondary = $ctype[1];
+ $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body) : $body) : null;
+ }
+
+ return $return;
+ }
+
+ /**
+ * Given the output of the above function, this will return an
+ * array of references to the parts, indexed by mime number.
+ *
+ * @param object $structure The structure to go through
+ * @param string $mime_number Internal use only.
+ * @return array Mime numbers
+ */
+ function &getMimeNumbers(&$structure, $no_refs = false, $mime_number = '', $prepend = '')
+ {
+ $return = array();
+ if (!empty($structure->parts)) {
+ if ($mime_number != '') {
+ $structure->mime_id = $prepend . $mime_number;
+ $return[$prepend . $mime_number] = &$structure;
+ }
+ for ($i = 0; $i < count($structure->parts); $i++) {
+
+
+ if (!empty($structure->headers['content-type']) AND substr(strtolower($structure->headers['content-type']), 0, 8) == 'message/') {
+ $prepend = $prepend . $mime_number . '.';
+ $_mime_number = '';
+ } else {
+ $_mime_number = ($mime_number == '' ? $i + 1 : sprintf('%s.%s', $mime_number, $i + 1));
+ }
+
+ $arr = &Mail_mimeDecode::getMimeNumbers($structure->parts[$i], $no_refs, $_mime_number, $prepend);
+ foreach ($arr as $key => $val) {
+ $no_refs ? $return[$key] = '' : $return[$key] = &$arr[$key];
+ }
+ }
+ } else {
+ if ($mime_number == '') {
+ $mime_number = '1';
+ }
+ $structure->mime_id = $prepend . $mime_number;
+ $no_refs ? $return[$prepend . $mime_number] = '' : $return[$prepend . $mime_number] = &$structure;
+ }
+
+ return $return;
+ }
+
+ /**
+ * Given a string containing a header and body
+ * section, this function will split them (at the first
+ * blank line) and return them.
+ *
+ * @param string Input to split apart
+ * @return array Contains header and body section
+ * @access private
+ */
+ function _splitBodyHeader($input)
+ {
+ if (preg_match("/^(.*?)\r?\n\r?\n(.*)/s", $input, $match)) {
+ return array($match[1], $match[2]);
+ }
+ // bug #17325 - empty bodies are allowed. - we just check that at least one line
+ // of headers exist..
+ if (count(explode("\n",$input))) {
+ return array($input, '');
+ }
+ $this->_error = 'Could not split header and body';
+ return false;
+ }
+
+ /**
+ * Parse headers given in $input and return
+ * as assoc array.
+ *
+ * @param string Headers to parse
+ * @return array Contains parsed headers
+ * @access private
+ */
+ function _parseHeaders($input)
+ {
+
+ if ($input !== '') {
+ // Unfold the input
+ $input = preg_replace("/\r?\n/", "\r\n", $input);
+ //#7065 - wrapping.. with encoded stuff.. - probably not needed,
+ // wrapping space should only get removed if the trailing item on previous line is a
+ // encoded character
+ $input = preg_replace("/=\r\n(\t| )+/", '=', $input);
+ $input = preg_replace("/\r\n(\t| )+/", ' ', $input);
+
+ $headers = explode("\r\n", trim($input));
+
+ foreach ($headers as $value) {
+ $hdr_name = substr($value, 0, $pos = strpos($value, ':'));
+ $hdr_value = substr($value, $pos+1);
+ if($hdr_value[0] == ' ')
+ $hdr_value = substr($hdr_value, 1);
+
+ $return[] = array(
+ 'name' => $hdr_name,
+ 'value' => $hdr_value
+ );
+ }
+ } else {
+ $return = array();
+ }
+
+ return $return;
+ }
+
+ /**
+ * Function to parse a header value,
+ * extract first part, and any secondary
+ * parts (after ;) This function is not as
+ * robust as it could be. Eg. header comments
+ * in the wrong place will probably break it.
+ *
+ * @param string Header value to parse
+ * @return array Contains parsed result
+ * @access private
+ */
+ function _parseHeaderValue($input)
+ {
+
+ if (($pos = strpos($input, ';')) === false) {
+ $input = $this->_decode_headers ? $this->_decodeHeader($input) : $input;
+ $return['value'] = trim($input);
+ return $return;
+ }
+
+
+
+ $value = substr($input, 0, $pos);
+ $value = $this->_decode_headers ? $this->_decodeHeader($value) : $value;
+ $return['value'] = trim($value);
+ $input = trim(substr($input, $pos+1));
+
+ if (!strlen($input) > 0) {
+ return $return;
+ }
+ // at this point input contains xxxx=".....";zzzz="...."
+ // since we are dealing with quoted strings, we need to handle this properly..
+ $i = 0;
+ $l = strlen($input);
+ $key = '';
+ $val = false; // our string - including quotes..
+ $q = false; // in quote..
+ $lq = ''; // last quote..
+
+ while ($i < $l) {
+
+ $c = $input[$i];
+ //var_dump(array('i'=>$i,'c'=>$c,'q'=>$q, 'lq'=>$lq, 'key'=>$key, 'val' =>$val));
+
+ $escaped = false;
+ if ($c == '\\') {
+ $i++;
+ if ($i == $l-1) { // end of string.
+ break;
+ }
+ $escaped = true;
+ $c = $input[$i];
+ }
+
+
+ // state - in key..
+ if ($val === false) {
+ if (!$escaped && $c == '=') {
+ $val = '';
+ $key = trim($key);
+ $i++;
+ continue;
+ }
+ if (!$escaped && $c == ';') {
+ if ($key) { // a key without a value..
+ $key= trim($key);
+ $return['other'][$key] = '';
+ $return['other'][strtolower($key)] = '';
+ }
+ $key = '';
+ }
+ $key .= $c;
+ $i++;
+ continue;
+ }
+
+ // state - in value.. (as $val is set..)
+
+ if ($q === false) {
+ // not in quote yet.
+ if ((!strlen($val) || $lq !== false) && $c == ' ' || $c == "\t") {
+ $i++;
+ continue; // skip leading spaces after '=' or after '"'
+ }
+ if (!$escaped && ($c == '"' || $c == "'")) {
+ // start quoted area..
+ $q = $c;
+ // in theory should not happen raw text in value part..
+ // but we will handle it as a merged part of the string..
+ $val = !strlen(trim($val)) ? '' : trim($val);
+ $i++;
+ continue;
+ }
+ // got end....
+ if (!$escaped && $c == ';') {
+
+ $val = trim($val);
+ $added = false;
+ if (preg_match('/\*[0-9]+$/', $key)) {
+ // this is the extended aaa*0=...;aaa*1=.... code
+ // it assumes the pieces arrive in order, and are valid...
+ $key = preg_replace('/\*[0-9]+$/', '', $key);
+ if (isset($return['other'][$key])) {
+ $return['other'][$key] .= $val;
+ if (strtolower($key) != $key) {
+ $return['other'][strtolower($key)] .= $val;
+ }
+ $added = true;
+ }
+ // continue and use standard setters..
+ }
+ if (!$added) {
+ $return['other'][$key] = $val;
+ $return['other'][strtolower($key)] = $val;
+ }
+ $val = false;
+ $key = '';
+ $lq = false;
+ $i++;
+ continue;
+ }
+
+ $val .= $c;
+ $i++;
+ continue;
+ }
+
+ // state - in quote..
+ if (!$escaped && $c == $q) { // potential exit state..
+
+ // end of quoted string..
+ $lq = $q;
+ $q = false;
+ $i++;
+ continue;
+ }
+
+ // normal char inside of quoted string..
+ $val.= $c;
+ $i++;
+ }
+
+ // do we have anything left..
+ if (strlen(trim($key)) || $val !== false) {
+
+ $val = trim($val);
+ $added = false;
+ if ($val !== false && preg_match('/\*[0-9]+$/', $key)) {
+ // no dupes due to our crazy regexp.
+ $key = preg_replace('/\*[0-9]+$/', '', $key);
+ if (isset($return['other'][$key])) {
+ $return['other'][$key] .= $val;
+ if (strtolower($key) != $key) {
+ $return['other'][strtolower($key)] .= $val;
+ }
+ $added = true;
+ }
+ // continue and use standard setters..
+ }
+ if (!$added) {
+ $return['other'][$key] = $val;
+ $return['other'][strtolower($key)] = $val;
+ }
+ }
+ // decode values.
+ foreach($return['other'] as $key =>$val) {
+ $return['other'][$key] = $this->_decode_headers ? $this->_decodeHeader($val) : $val;
+ }
+ //print_r($return);
+ return $return;
+ }
+
+ /**
+ * This function splits the input based
+ * on the given boundary
+ *
+ * @param string Input to parse
+ * @return array Contains array of resulting mime parts
+ * @access private
+ */
+ function _boundarySplit($input, $boundary)
+ {
+ $parts = array();
+
+ $bs_possible = substr($boundary, 2, -2);
+ $bs_check = '\"' . $bs_possible . '\"';
+
+ if ($boundary == $bs_check) {
+ $boundary = $bs_possible;
+ }
+ $tmp = preg_split("/--".preg_quote($boundary, '/')."((?=\s)|--)/", $input);
+
+ $len = count($tmp) -1;
+ for ($i = 1; $i < $len; $i++) {
+ if (strlen(trim($tmp[$i]))) {
+ $parts[] = $tmp[$i];
+ }
+ }
+
+ // add the last part on if it does not end with the 'closing indicator'
+ if (!empty($tmp[$len]) && strlen(trim($tmp[$len])) && $tmp[$len][0] != '-') {
+ $parts[] = $tmp[$len];
+ }
+ return $parts;
+ }
+
+ /**
+ * Given a header, this function will decode it
+ * according to RFC2047. Probably not *exactly*
+ * conformant, but it does pass all the given
+ * examples (in RFC2047).
+ *
+ * @param string Input header value to decode
+ * @return string Decoded header value
+ * @access private
+ */
+ function _decodeHeader($input)
+ {
+ // Remove white space between encoded-words
+ $input = preg_replace('/(=\?[^?]+\?(q|b)\?[^?]*\?=)(\s)+=\?/i', '\1=?', $input);
+
+ // For each encoded-word...
+ while (preg_match('/(=\?([^?]+)\?(q|b)\?([^?]*)\?=)/i', $input, $matches)) {
+
+ $encoded = $matches[1];
+ $charset = $matches[2];
+ $encoding = $matches[3];
+ $text = $matches[4];
+
+ switch (strtolower($encoding)) {
+ case 'b':
+ $text = base64_decode($text);
+ break;
+
+ case 'q':
+ $text = str_replace('_', ' ', $text);
+ preg_match_all('/=([a-f0-9]{2})/i', $text, $matches);
+ foreach($matches[1] as $value)
+ $text = str_replace('='.$value, chr(hexdec($value)), $text);
+ break;
+ }
+
+ $input = str_replace($encoded, $text, $input);
+ }
+
+ return $input;
+ }
+
+ /**
+ * Given a body string and an encoding type,
+ * this function will decode and return it.
+ *
+ * @param string Input body to decode
+ * @param string Encoding type to use.
+ * @return string Decoded body
+ * @access private
+ */
+ function _decodeBody($input, $encoding = '7bit')
+ {
+ switch (strtolower($encoding)) {
+ case '7bit':
+ return $input;
+ break;
+
+ case 'quoted-printable':
+ return $this->_quotedPrintableDecode($input);
+ break;
+
+ case 'base64':
+ return base64_decode($input);
+ break;
+
+ default:
+ return $input;
+ }
+ }
+
+ /**
+ * Given a quoted-printable string, this
+ * function will decode and return it.
+ *
+ * @param string Input body to decode
+ * @return string Decoded body
+ * @access private
+ */
+ function _quotedPrintableDecode($input)
+ {
+ // Remove soft line breaks
+ $input = preg_replace("/=\r?\n/", '', $input);
+
+ // Replace encoded characters
+ $input = preg_replace('/=([a-f0-9]{2})/ie', "chr(hexdec('\\1'))", $input);
+
+ return $input;
+ }
+
+ /**
+ * Checks the input for uuencoded files and returns
+ * an array of them. Can be called statically, eg:
+ *
+ * $files =& Mail_mimeDecode::uudecode($some_text);
+ *
+ * It will check for the begin 666 ... end syntax
+ * however and won't just blindly decode whatever you
+ * pass it.
+ *
+ * @param string Input body to look for attahcments in
+ * @return array Decoded bodies, filenames and permissions
+ * @access public
+ * @author Unknown
+ */
+ function &uudecode($input)
+ {
+ // Find all uuencoded sections
+ preg_match_all("/begin ([0-7]{3}) (.+)\r?\n(.+)\r?\nend/Us", $input, $matches);
+
+ for ($j = 0; $j < count($matches[3]); $j++) {
+
+ $str = $matches[3][$j];
+ $filename = $matches[2][$j];
+ $fileperm = $matches[1][$j];
+
+ $file = '';
+ $str = preg_split("/\r?\n/", trim($str));
+ $strlen = count($str);
+
+ for ($i = 0; $i < $strlen; $i++) {
+ $pos = 1;
+ $d = 0;
+ $len=(int)(((ord(substr($str[$i],0,1)) -32) - ' ') & 077);
+
+ while (($d + 3 <= $len) AND ($pos + 4 <= strlen($str[$i]))) {
+ $c0 = (ord(substr($str[$i],$pos,1)) ^ 0x20);
+ $c1 = (ord(substr($str[$i],$pos+1,1)) ^ 0x20);
+ $c2 = (ord(substr($str[$i],$pos+2,1)) ^ 0x20);
+ $c3 = (ord(substr($str[$i],$pos+3,1)) ^ 0x20);
+ $file .= chr(((($c0 - ' ') & 077) << 2) | ((($c1 - ' ') & 077) >> 4));
+
+ $file .= chr(((($c1 - ' ') & 077) << 4) | ((($c2 - ' ') & 077) >> 2));
+
+ $file .= chr(((($c2 - ' ') & 077) << 6) | (($c3 - ' ') & 077));
+
+ $pos += 4;
+ $d += 3;
+ }
+
+ if (($d + 2 <= $len) && ($pos + 3 <= strlen($str[$i]))) {
+ $c0 = (ord(substr($str[$i],$pos,1)) ^ 0x20);
+ $c1 = (ord(substr($str[$i],$pos+1,1)) ^ 0x20);
+ $c2 = (ord(substr($str[$i],$pos+2,1)) ^ 0x20);
+ $file .= chr(((($c0 - ' ') & 077) << 2) | ((($c1 - ' ') & 077) >> 4));
+
+ $file .= chr(((($c1 - ' ') & 077) << 4) | ((($c2 - ' ') & 077) >> 2));
+
+ $pos += 3;
+ $d += 2;
+ }
+
+ if (($d + 1 <= $len) && ($pos + 2 <= strlen($str[$i]))) {
+ $c0 = (ord(substr($str[$i],$pos,1)) ^ 0x20);
+ $c1 = (ord(substr($str[$i],$pos+1,1)) ^ 0x20);
+ $file .= chr(((($c0 - ' ') & 077) << 2) | ((($c1 - ' ') & 077) >> 4));
+
+ }
+ }
+ $files[] = array('filename' => $filename, 'fileperm' => $fileperm, 'filedata' => $file);
+ }
+
+ return $files;
+ }
+
+ /**
+ * getSendArray() returns the arguments required for Mail::send()
+ * used to build the arguments for a mail::send() call
+ *
+ * Usage:
+ * $mailtext = Full email (for example generated by a template)
+ * $decoder = new Mail_mimeDecode($mailtext);
+ * $parts = $decoder->getSendArray();
+ * if (!PEAR::isError($parts) {
+ * list($recipents,$headers,$body) = $parts;
+ * $mail = Mail::factory('smtp');
+ * $mail->send($recipents,$headers,$body);
+ * } else {
+ * echo $parts->message;
+ * }
+ * @return mixed array of recipeint, headers,body or Pear_Error
+ * @access public
+ * @author Alan Knowles <alan@akbkhome.com>
+ */
+ function getSendArray()
+ {
+ // prevent warning if this is not set
+ $this->_decode_headers = FALSE;
+ $headerlist =$this->_parseHeaders($this->_header);
+ $to = "";
+ if (!$headerlist) {
+ return $this->raiseError("Message did not contain headers");
+ }
+ foreach($headerlist as $item) {
+ $header[$item['name']] = $item['value'];
+ switch (strtolower($item['name'])) {
+ case "to":
+ case "cc":
+ case "bcc":
+ $to .= ",".$item['value'];
+ default:
+ break;
+ }
+ }
+ if ($to == "") {
+ return $this->raiseError("Message did not contain any recipents");
+ }
+ $to = substr($to,1);
+ return array($to,$header,$this->_body);
+ }
+
+ /**
+ * Returns a xml copy of the output of
+ * Mail_mimeDecode::decode. Pass the output in as the
+ * argument. This function can be called statically. Eg:
+ *
+ * $output = $obj->decode();
+ * $xml = Mail_mimeDecode::getXML($output);
+ *
+ * The DTD used for this should have been in the package. Or
+ * alternatively you can get it from cvs, or here:
+ * http://www.phpguru.org/xmail/xmail.dtd.
+ *
+ * @param object Input to convert to xml. This should be the
+ * output of the Mail_mimeDecode::decode function
+ * @return string XML version of input
+ * @access public
+ */
+ function getXML($input)
+ {
+ $crlf = "\r\n";
+ $output = '<?xml version=\'1.0\'?>' . $crlf .
+ '<!DOCTYPE email SYSTEM "http://www.phpguru.org/xmail/xmail.dtd">' . $crlf .
+ '<email>' . $crlf .
+ Mail_mimeDecode::_getXML($input) .
+ '</email>';
+
+ return $output;
+ }
+
+ /**
+ * Function that does the actual conversion to xml. Does a single
+ * mimepart at a time.
+ *
+ * @param object Input to convert to xml. This is a mimepart object.
+ * It may or may not contain subparts.
+ * @param integer Number of tabs to indent
+ * @return string XML version of input
+ * @access private
+ */
+ function _getXML($input, $indent = 1)
+ {
+ $htab = "\t";
+ $crlf = "\r\n";
+ $output = '';
+ $headers = @(array)$input->headers;
+
+ foreach ($headers as $hdr_name => $hdr_value) {
+
+ // Multiple headers with this name
+ if (is_array($headers[$hdr_name])) {
+ for ($i = 0; $i < count($hdr_value); $i++) {
+ $output .= Mail_mimeDecode::_getXML_helper($hdr_name, $hdr_value[$i], $indent);
+ }
+
+ // Only one header of this sort
+ } else {
+ $output .= Mail_mimeDecode::_getXML_helper($hdr_name, $hdr_value, $indent);
+ }
+ }
+
+ if (!empty($input->parts)) {
+ for ($i = 0; $i < count($input->parts); $i++) {
+ $output .= $crlf . str_repeat($htab, $indent) . '<mimepart>' . $crlf .
+ Mail_mimeDecode::_getXML($input->parts[$i], $indent+1) .
+ str_repeat($htab, $indent) . '</mimepart>' . $crlf;
+ }
+ } elseif (isset($input->body)) {
+ $output .= $crlf . str_repeat($htab, $indent) . '<body><![CDATA[' .
+ $input->body . ']]></body>' . $crlf;
+ }
+
+ return $output;
+ }
+
+ /**
+ * Helper function to _getXML(). Returns xml of a header.
+ *
+ * @param string Name of header
+ * @param string Value of header
+ * @param integer Number of tabs to indent
+ * @return string XML version of input
+ * @access private
+ */
+ function _getXML_helper($hdr_name, $hdr_value, $indent)
+ {
+ $htab = "\t";
+ $crlf = "\r\n";
+ $return = '';
+
+ $new_hdr_value = ($hdr_name != 'received') ? Mail_mimeDecode::_parseHeaderValue($hdr_value) : array('value' => $hdr_value);
+ $new_hdr_name = str_replace(' ', '-', ucwords(str_replace('-', ' ', $hdr_name)));
+
+ // Sort out any parameters
+ if (!empty($new_hdr_value['other'])) {
+ foreach ($new_hdr_value['other'] as $paramname => $paramvalue) {
+ $params[] = str_repeat($htab, $indent) . $htab . '<parameter>' . $crlf .
+ str_repeat($htab, $indent) . $htab . $htab . '<paramname>' . htmlspecialchars($paramname) . '</paramname>' . $crlf .
+ str_repeat($htab, $indent) . $htab . $htab . '<paramvalue>' . htmlspecialchars($paramvalue) . '</paramvalue>' . $crlf .
+ str_repeat($htab, $indent) . $htab . '</parameter>' . $crlf;
+ }
+
+ $params = implode('', $params);
+ } else {
+ $params = '';
+ }
+
+ $return = str_repeat($htab, $indent) . '<header>' . $crlf .
+ str_repeat($htab, $indent) . $htab . '<headername>' . htmlspecialchars($new_hdr_name) . '</headername>' . $crlf .
+ str_repeat($htab, $indent) . $htab . '<headervalue>' . htmlspecialchars($new_hdr_value['value']) . '</headervalue>' . $crlf .
+ $params .
+ str_repeat($htab, $indent) . '</header>' . $crlf;
+
+ return $return;
+ }
+
+} // End of class
--
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