/**
* @access public
* @return string
*/
public function __toString()
{
if ($this->headers->get('Content-Type') == null) {
$this->headers->set('Content-Type', 'application/octet-stream');
}
$body = $this->body;
if ($this->isMultiPart()) {
$this->boundary = '--=_Part_' . md5(microtime());
$this->headers->get('Content-Type')->param('boundary', $this->boundary);
if ($body != '') {
$body .= "\r\n\r\n";
}
foreach ($this->subparts as $subpart) {
$body .= '--' . $this->boundary . "\r\n";
$body .= !is_string($subpart) ? $subpart->__toString() : $subpart;
$body .= "\r\n";
}
$body .= '--' . $this->boundary . "--\r\n";
} else {
if ($encoding = $this->headers->get('Content-Transfer-Encoding')) {
$encoding = strtolower($encoding->value);
}
if (!in_array($encoding, array('7bit', '8bit', 'quoted-printable', 'base64', 'binary'))) {
$this->headers->remove('Content-Transfer-Encoding');
$encoding = '7bit';
}
switch ($encoding) {
case 'quoted-printable':
/**
* Encodage en chaîne à guillemets
*
* @see RFC 2045#6.7
*/
$body = Mime::quotedPrintableEncode($body);
break;
case 'base64':
/**
* Encodage en base64
*
* @see RFC 2045#6.8
*/
$body = rtrim(chunk_split(base64_encode($body)));
break;
case '7bit':
case '8bit':
$body = preg_replace("/\r\n?|\n/", "\r\n", $body);
/**
* Limitation sur les longueurs des lignes de texte.
* La limite basse est de 78 caractères par ligne.
* En tout état de cause, chaque ligne ne DOIT PAS
* faire plus de 998 caractères.
*
* @see RFC 2822#2.1.1
*/
$body = Mime::wordwrap($body, $this->wraptext ? 78 : 998);
break;
}
}
return $this->headers->__toString() . "\r\n" . $body;
}