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<?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_Mail
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Part.php 18951 2009-11-12 16:26:19Z alexander $
*/
/**
* @see Zend_Mime_Decode
*/
require_once 'Zend/Mime/Decode.php';
/**
* @see Zend_Mail_Part_Interface
*/
require_once 'Zend/Mail/Part/Interface.php';
/**
* @category Zend
* @package Zend_Mail
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Mail_Part implements RecursiveIterator, Zend_Mail_Part_Interface
{
/**
* headers of part as array
* @var null|array
*/
protected $_headers;
/**
* raw part body
* @var null|string
*/
protected $_content;
/**
* toplines as fetched with headers
* @var string
*/
protected $_topLines = '';
/**
* parts of multipart message
* @var array
*/
protected $_parts = array();
/**
* count of parts of a multipart message
* @var null|int
*/
protected $_countParts;
/**
* current position of iterator
* @var int
*/
protected $_iterationPos = 1;
/**
* mail handler, if late fetch is active
* @var null|Zend_Mail_Storage_Abstract
*/
protected $_mail;
/**
* message number for mail handler
* @var int
*/
protected $_messageNum = 0;
/**
* Public constructor
*
* Zend_Mail_Part supports different sources for content. The possible params are:
* - handler a instance of Zend_Mail_Storage_Abstract for late fetch
* - id number of message for handler
* - raw raw content with header and body as string
* - headers headers as array (name => value) or string, if a content part is found it's used as toplines
* - noToplines ignore content found after headers in param 'headers'
* - content content as string
*
* @param array $params full message with or without headers
* @throws Zend_Mail_Exception
*/
public function __construct(array $params)
{
if (isset($params['handler'])) {
if (!$params['handler'] instanceof Zend_Mail_Storage_Abstract) {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception('handler is not a valid mail handler');
}
if (!isset($params['id'])) {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception('need a message id with a handler');
}
$this->_mail = $params['handler'];
$this->_messageNum = $params['id'];
}
if (isset($params['raw'])) {
Zend_Mime_Decode::splitMessage($params['raw'], $this->_headers, $this->_content);
} else if (isset($params['headers'])) {
if (is_array($params['headers'])) {
$this->_headers = $params['headers'];
} else {
if (!empty($params['noToplines'])) {
Zend_Mime_Decode::splitMessage($params['headers'], $this->_headers, $null);
} else {
Zend_Mime_Decode::splitMessage($params['headers'], $this->_headers, $this->_topLines);
}
}
if (isset($params['content'])) {
$this->_content = $params['content'];
}
}
}
/**
* Check if part is a multipart message
*
* @return bool if part is multipart
*/
public function isMultipart()
{
try {
return stripos($this->contentType, 'multipart/') === 0;
} catch(Zend_Mail_Exception $e) {
return false;
}
}
/**
* Body of part
*
* If part is multipart the raw content of this part with all sub parts is returned
*
* @return string body
* @throws Zend_Mail_Exception
*/
public function getContent()
{
if ($this->_content !== null) {
return $this->_content;
}
if ($this->_mail) {
return $this->_mail->getRawContent($this->_messageNum);
} else {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception('no content');
}
}
/**
* Return size of part
*
* Quite simple implemented currently (not decoding). Handle with care.
*
* @return int size
*/
public function getSize() {
return strlen($this->getContent());
}
/**
* Cache content and split in parts if multipart
*
* @return null
* @throws Zend_Mail_Exception
*/
protected function _cacheContent()
{
// caching content if we can't fetch parts
if ($this->_content === null && $this->_mail) {
$this->_content = $this->_mail->getRawContent($this->_messageNum);
}
if (!$this->isMultipart()) {
return;
}
// split content in parts
$boundary = $this->getHeaderField('content-type', 'boundary');
if (!$boundary) {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception('no boundary found in content type to split message');
}
$parts = Zend_Mime_Decode::splitMessageStruct($this->_content, $boundary);
if ($parts === null) {
return;
}
$counter = 1;
foreach ($parts as $part) {
$this->_parts[$counter++] = new self(array('headers' => $part['header'], 'content' => $part['body']));
}
}
/**
* Get part of multipart message
*
* @param int $num number of part starting with 1 for first part
* @return Zend_Mail_Part wanted part
* @throws Zend_Mail_Exception
*/
public function getPart($num)
{
if (isset($this->_parts[$num])) {
return $this->_parts[$num];
}
if (!$this->_mail && $this->_content === null) {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception('part not found');
}
if ($this->_mail && $this->_mail->hasFetchPart) {
// TODO: fetch part
// return
}
$this->_cacheContent();
if (!isset($this->_parts[$num])) {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception('part not found');
}
return $this->_parts[$num];
}
/**
* Count parts of a multipart part
*
* @return int number of sub-parts
*/
public function countParts()
{
if ($this->_countParts) {
return $this->_countParts;
}
$this->_countParts = count($this->_parts);
if ($this->_countParts) {
return $this->_countParts;
}
if ($this->_mail && $this->_mail->hasFetchPart) {
// TODO: fetch part
// return
}
$this->_cacheContent();
$this->_countParts = count($this->_parts);
return $this->_countParts;
}
/**
* Get all headers
*
* The returned headers are as saved internally. All names are lowercased. The value is a string or an array
* if a header with the same name occurs more than once.
*
* @return array headers as array(name => value)
*/
public function getHeaders()
{
if ($this->_headers === null) {
if (!$this->_mail) {
$this->_headers = array();
} else {
$part = $this->_mail->getRawHeader($this->_messageNum);
Zend_Mime_Decode::splitMessage($part, $this->_headers, $null);
}
}
return $this->_headers;
}
/**
* Get a header in specificed format
*
* Internally headers that occur more than once are saved as array, all other as string. If $format
* is set to string implode is used to concat the values (with Zend_Mime::LINEEND as delim).
*
* @param string $name name of header, matches case-insensitive, but camel-case is replaced with dashes
* @param string $format change type of return value to 'string' or 'array'
* @return string|array value of header in wanted or internal format
* @throws Zend_Mail_Exception
*/
public function getHeader($name, $format = null)
{
if ($this->_headers === null) {
$this->getHeaders();
}
$lowerName = strtolower($name);
if ($this->headerExists($name) == false) {
$lowerName = strtolower(preg_replace('%([a-z])([A-Z])%', '\1-\2', $name));
if($this->headerExists($lowerName) == false) {
/**
* @see Zend_Mail_Exception
*/
require_once 'Zend/Mail/Exception.php';
throw new Zend_Mail_Exception("no Header with Name $name or $lowerName found");
}
}
$name = $lowerName;
$header = $this->_headers[$name];
switch ($format) {
case 'string':
if (is_array($header)) {
$header = implode(Zend_Mime::LINEEND, $header);
}
break;
case 'array':
$header = (array)$header;
default:
// do nothing
}
return $header;
}
/**
* Check wheater the Mail part has a specific header.
*
* @param string $name
* @return boolean
*/
public function headerExists($name)
{
$name = strtolower($name);
if(isset($this->_headers[$name])) {
return true;
} else {
return false;
}
}
/**
* Get a specific field from a header like content type or all fields as array
*
* If the header occurs more than once, only the value from the first header
* is returned.
*
* Throws a Zend_Mail_Exception if the requested header does not exist. If
* the specific header field does not exist, returns null.
*
* @param string $name name of header, like in getHeader()
* @param string $wantedPart the wanted part, default is first, if null an array with all parts is returned
* @param string $firstName key name for the first part
* @return string|array wanted part or all parts as array($firstName => firstPart, partname => value)
* @throws Zend_Exception, Zend_Mail_Exception
*/
public function getHeaderField($name, $wantedPart = 0, $firstName = 0) {
return Zend_Mime_Decode::splitHeaderField(current($this->getHeader($name, 'array')), $wantedPart, $firstName);
}
/**
* Getter for mail headers - name is matched in lowercase
*
* This getter is short for Zend_Mail_Part::getHeader($name, 'string')
*
* @see Zend_Mail_Part::getHeader()
*
* @param string $name header name
* @return string value of header
* @throws Zend_Mail_Exception
*/
public function __get($name)
{
return $this->getHeader($name, 'string');
}
/**
* Isset magic method proxy to hasHeader
*
* This method is short syntax for Zend_Mail_Part::hasHeader($name);
*
* @see Zend_Mail_Part::hasHeader
*
* @param string
* @return boolean
*/
public function __isset($name)
{
return $this->headerExists($name);
}
/**
* magic method to get content of part
*
* @return string content
*/
public function __toString()
{
return $this->getContent();
}
/**
* implements RecursiveIterator::hasChildren()
*
* @return bool current element has children/is multipart
*/
public function hasChildren()
{
$current = $this->current();
return $current && $current instanceof Zend_Mail_Part && $current->isMultipart();
}
/**
* implements RecursiveIterator::getChildren()
*
* @return Zend_Mail_Part same as self::current()
*/
public function getChildren()
{
return $this->current();
}
/**
* implements Iterator::valid()
*
* @return bool check if there's a current element
*/
public function valid()
{
if ($this->_countParts === null) {
$this->countParts();
}
return $this->_iterationPos && $this->_iterationPos <= $this->_countParts;
}
/**
* implements Iterator::next()
*
* @return null
*/
public function next()
{
++$this->_iterationPos;
}
/**
* implements Iterator::key()
*
* @return string key/number of current part
*/
public function key()
{
return $this->_iterationPos;
}
/**
* implements Iterator::current()
*
* @return Zend_Mail_Part current part
*/
public function current()
{
return $this->getPart($this->_iterationPos);
}
/**
* implements Iterator::rewind()
*
* @return null
*/
public function rewind()
{
$this->countParts();
$this->_iterationPos = 1;
}
}
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