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| /**
* Set the private key file and password to sign the message.
*
* @access public
* @param string $key_filename Parameter File Name
* @param string $key_pass Password for private key
*/
public function DKIM_QP($txt) {
$tmp="";
$line="";
for ($i=0;$i<strlen($txt);$i++) {
$ord=ord($txt[$i]);
if ( ((0x21 <= $ord) && ($ord <= 0x3A)) || $ord == 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E)) ) {
$line.=$txt[$i];
} else {
$line.="=".sprintf("%02X",$ord);
}
}
return $line;
}
/**
* Generate DKIM signature
*
* @access public
* @param string $s Header
*/
public function DKIM_Sign($s) {
$privKeyStr = file_get_contents($this->DKIM_private);
if ($this->DKIM_passphrase!='') {
$privKey = openssl_pkey_get_private($privKeyStr,$this->DKIM_passphrase);
} else {
$privKey = openssl_pkey_get_private($privKeyStr);
}
if (openssl_sign($s, $signature, $privKey)) {
return base64_encode($signature);
}
}
/**
* Generate DKIM Canonicalization Header
*
* @access public
* @param string $s Header
*/
public function DKIM_HeaderC($s) {
$s=preg_replace("/\r\n\s+/"," ",$s);
$lines=explode("\r\n",$s);
foreach ($lines as $key=>$line) {
list($heading,$value)=explode(":",$line,2);
$heading=strtolower($heading);
$value=preg_replace("/\s+/"," ",$value) ; // Compress useless spaces
$lines[$key]=$heading.":".trim($value) ; // Don't forget to remove WSP around the value
}
$s=implode("\r\n",$lines);
return $s;
}
/**
* Generate DKIM Canonicalization Body
*
* @access public
* @param string $body Message Body
*/
public function DKIM_BodyC($body) {
if ($body == '') return "\r\n";
// stabilize line endings
$body=str_replace("\r\n","\n",$body);
$body=str_replace("\n","\r\n",$body);
// END stabilize line endings
while (substr($body,strlen($body)-2,2) == "\r\n") {
$body=substr($body,0,strlen($body)-2);
}
sss_error_track($this->ContentType);
if ($this->ContentType == 'text/plain') {
return $body . "\r\n";
} else {
return "\r\n" . $body;
};
}
/**
* Create the DKIM header, body, as new header
*
* @access public
* @param string $headers_line Header lines
* @param string $subject Subject
* @param string $body Body
*/
public function DKIM_Add($headers_line,$subject,$body) {
$boundary_header = ''; // initialisation
$DKIMsignatureType = 'rsa-sha1'; // Signature & hash algorithms
$DKIMcanonicalization = 'relaxed'; // Canonicalization of header/body
$DKIMquery = 'dns/txt'; // Query method
$DKIMtime = time() ; // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
$subject_header = "Subject: $subject";
$headers = explode("\n",$headers_line);
foreach($headers as $header) {
if (strpos($header,'From:') === 0) {
$from_header=$header;
} elseif (strpos($header,'To:') === 0) {
$to_header=$header;
} elseif (strpos($header,'Message-ID:') === 0) {
$msgid_header = $header;
} elseif (strpos($header,'MIME-Version:') === 0) {
$mime_header = $header;
} elseif (strpos($header,'Date:') === 0) {
$date_header = $header;
} elseif (strpos($header,'Content-Type:') === 0) {
$content_header = $header;
} elseif (strpos($header,'boundary=') !== false) {
$boundary_header = substr($header,strpos($header,'boundary='),strlen($header) - strpos($header,'boundary='));
}
}
$from = str_replace('|','=7C',$this->DKIM_QP($from_header));
$to = str_replace('|','=7C',$this->DKIM_QP($to_header));
$subject = str_replace('|','=7C',$this->DKIM_QP($subject_header)); // Copied header fields (dkim-quoted-printable
$body = $this->DKIM_BodyC($body);
$DKIMlen = strlen($body) ; // Length of body
$DKIMb64 = base64_encode(pack('H*',sha1($body))); // Base64 of packed binary SHA-1 hash of body
$ident = ($this->DKIM_identity == '')? '' : " i=" . $this->DKIM_identity . ";";
$dkimhdrs = "DKIM-Signature: v=1; k=rsa; a=" . $DKIMsignatureType . "; q=" . $DKIMquery . "; l=" . $DKIMlen . "; s=" . $this->DKIM_selector . ";\r\n".
"\tt=" . $DKIMtime . "; c=" . $DKIMcanonicalization . ";\r\n".
"\th=mime-version:x-originating-ip:date:message-id:subject:from:to:content-type;\r\n".
"\td=" . $this->DKIM_domain . ";" . $ident . "\r\n".
"\tz=$from\r\n".
"\t|$to\r\n".
"\t|$subject;\r\n".
"\tbh=" . $DKIMb64 . ";\r\n".
"\tb=";
$toSign = $this->DKIM_HeaderC($mime_header . "\r\n" . $date_header . "\r\n" . $msgid_header . "\r\n" . $subject_header . "\r\n" . $from_header . "\r\n" . $to_header . "\r\n" . $content_header . " ". $boundary_header . "\r\n" .$dkimhdrs);
$signed = $this->DKIM_Sign($toSign);
return "X-PHPMAILER-DKIM: phpmailer.worxware.com\n".$dkimhdrs.$signed."\r\n";
} |
Erreur DKIM par PHPMailer
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