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<?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: mimeDecode.php 337165 2015-07-15 09:42:08Z alan_k $
* @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
* (set to UTF8 to iconv convert headers)
* @var mixed
* @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 $_rfc822_bodies;
/**
* Constructor.
*
* Sets up the object, initialise the variables, and splits and
* stores the header and body of the input.
*
* @param string The input to decode
* @access public
*/
function __construct($input)
{
list($header, $body) = $this->_splitBodyHeader($input);
$this->_input = $input;
$this->_header = $header;
$this->_body = $body;
$this->_decode_bodies = false;
$this->_include_bodies = true;
$this->_rfc822_bodies = false;
}
// BC
function Mail_mimeDecode($input)
{
$this->__construct($input);
}
/**
* 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,
* - use "UTF8//IGNORE" to convert charset.
*
* 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']) ?
$params['rfc_822bodies'] : false;
if (is_string($this->_decode_headers) && !function_exists('iconv')) {
PEAR::raiseError('header decode conversion requested, however iconv is missing');
}
$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'] = $this->_decodeHeader($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/signed': // PGP
$parts = $this->_boundarySplit($body, $content_type['other']['boundary'], true);
$return->parts['msg_body'] = $parts[0];
list($part_header, $part_body) = $this->_splitBodyHeader($parts[1]);
$return->parts['sig_hdr'] = $part_header;
$return->parts['sig_body'] = $part_body;
break;
case 'multipart/parallel':
case 'multipart/appledouble': // Appledouble mail
case 'multipart/report': // RFC1892
case 'multipart/signed': // PGP
case 'multipart/digest':
case 'multipart/alternative':
case 'multipart/related':
case 'multipart/relative': //#20431 - android
case 'multipart/mixed':
case 'application/vnd.wap.multipart.related':
if(!isset($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[] = $part;
}
break;
case 'message/rfc822':
case 'message/delivery-status': // #bug #18693
if ($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));
$got_start = false;
foreach ($headers as $value) {
if (!$got_start) {
// munge headers for mbox style from
if ($value[0] == '>') {
$value = substring($value, 1); // remove mbox >
}
if (substr($value,0,5) == 'From ') {
$value = 'Return-Path: ' . substr($value, 5);
} else {
$got_start = true;
}
}
$hdr_name = substr($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 $return;
}
/**
* Function to parse a header value,
* extract first part, and any secondary
* parts (after ;) This function is not as
* robust as it could be. Eg. header comments
* in the wrong place will probably break it.
*
* Extra things this can handle
* filename*0=......
* filename*1=......
*
* This is where lines are broken in, and need merging.
*
* filename*0*=ENC'lang'urlencoded data.
* filename*1*=ENC'lang'urlencoded data.
*
*
*
* @param string Header value to parse
* @return array Contains parsed result
* @access private
*/
function _parseHeaderValue($input)
{
if (($pos = strpos($input, ';')) === false) {
$input = $this->_decodeHeader($input);
$return['value'] = trim($input);
return $return;
}
$value = substr($input, 0, $pos);
$value = $this->_decodeHeader($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] = '';
}
$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 '"'
}
// do not de-quote 'xxx*= itesm..
$key_is_trans = $key[strlen($key)-1] == '*';
if (!$key_is_trans && !$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 == ';') {
$return['other'][$key] = trim($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);
$return['other'][$key] = $val;
}
$clean_others = array();
// merge added values. eg. *1[*]
foreach($return['other'] as $key =>$val) {
if (preg_match('/\*[0-9]+\**$/', $key)) {
$key = preg_replace('/(.*)\*[0-9]+(\**)$/', '\1\2', $key);
if (isset($clean_others[$key])) {
$clean_others[$key] .= $val;
continue;
}
}
$clean_others[$key] = $val;
}
// handle language translation of '*' ending others.
foreach( $clean_others as $key =>$val) {
if ( $key[strlen($key)-1] != '*') {
$clean_others[strtolower($key)] = $val;
continue;
}
unset($clean_others[$key]);
$key = substr($key,0,-1);
//extended-initial-value := [charset] "'" [language] "'"
// extended-other-values
$match = array();
$info = preg_match("/^([^']+)'([^']*)'(.*)$/", $val, $match);
$clean_others[$key] = urldecode($match[3]);
$clean_others[strtolower($key)] = $clean_others[$key];
$clean_others[strtolower($key).'-charset'] = $match[1];
$clean_others[strtolower($key).'-language'] = $match[2];
}
$return['other'] = $clean_others;
// decode values.
foreach($return['other'] as $key =>$val) {
$charset = isset($return['other'][$key . '-charset']) ?
$return['other'][$key . '-charset'] : false;
$return['other'][$key] = $this->_decodeHeader($val, $charset);
}
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, $eatline = false)
{
$parts = array();
$bs_possible = substr($boundary, 2, -2);
$bs_check = '\"' . $bs_possible . '\"';
if ($boundary == $bs_check) {
$boundary = $bs_possible;
}
// eatline is used by multipart/signed.
$tmp = $eatline ?
preg_split("/\r?\n--".preg_quote($boundary, '/')."(|--)\n/", $input) :
preg_split("/--".preg_quote($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, $default_charset=false)
{
if (!$this->_decode_headers) {
return $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)), $text);
break;
}
if (is_string($this->_decode_headers)) {
$conv = @iconv($charset, $this->_decode_headers, $text);
$text = ($conv === false) ? $text : $conv;
}
$input = str_replace($encoded, $text, $input);
}
if ($default_charset && is_string($this->_decode_headers)) {
$conv = @iconv($charset, $this->_decode_headers, $input);
$input = ($conv === false) ? $input : $conv;
}
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
$cb = create_function('$matches', ' return chr(hexdec($matches[0]));');
$input = preg_replace_callback( '/=([a-f0-9]{2})/i', $cb, $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