/**
* Generate a MDN from the message
*
* @param object $exception The exception if error handled
*
* @return object The MDN generated
*/
public function generateMDN($exception = null)
{
$mdn = $this->mdnFactory->build($this);
$message_id = $this->getHeader('message-id');
$partner = $this->getPartnerTo()->id;
$mic = $this->getMicChecksum();
$mdn->setAttribute('Original-Recipient', 'rfc822; "' . $partner . '"');
$mdn->setAttribute('Final-Recipient', 'rfc822; "' . $partner . '"');
$mdn->setAttribute('Original-Message-ID', $message_id);
if ($mic) {
$mdn->setAttribute('Received-Content-MIC', $mic);
}
if (is_null($exception)) {
$mdn->setMessage('The AS2 message has been received.');
$mdn->setAttribute('Disposition-Type', 'processed');
} else {
if (!$exception instanceof AS2Exception) {
$exception = new AS2Exception($exception->getMessage());
}
$mdn->setMessage($exception->getMessage());
$mdn->setAttribute('Disposition-Type', 'failure');
$mdn->setAttribute('Disposition-Modifier', $exception->getLevel() . ': ' . $exception->getMessageShort());
}
return $mdn;
}
public function getObject()
{
// setup of full message
$content = $this->getHeaders(true) . "\n\n";
$content .= file_get_contents($this->getPath());
$input = Adapter::getTempFilename();
file_put_contents($input, $content);
// setup of mailmime decoder
$params = array('include_bodies' => false, 'decode_headers' => true, 'decode_bodies' => false, 'input' => false);
$decoder = new Mail_mimeDecode(file_get_contents($input));
$structure = $decoder->decode($params);
$mimetype = $structure->ctype_primary . '/' . $structure->ctype_secondary;
// handle crypted content
$crypted = false;
if (strtolower($mimetype) == 'application/pkcs7-mime') {
try {
// rewrite message into base64 encoding
$content = file_get_contents($input);
$mime_part = Horde_MIME_Structure::parseTextMIMEMessage($content);
$input = Adapter::getTempFilename();
file_put_contents($input, $mime_part->toString(true));
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'AS2 message is encrypted.'));
$input = $this->adapter->decrypt($input);
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'The data has been decrypted using the key "' . $this->getPartnerTo() . '".'));
$crypted = true;
// reload extracted content to get mimetype
$decoder = new Mail_mimeDecode(file_get_contents($input));
$structure = $decoder->decode($params);
$mimetype = $structure->ctype_primary . '/' . $structure->ctype_secondary;
} catch (Exception $e) {
throw new AS2Exception($e->getMessage(), 3);
}
}
// handle signed content
$signed = false;
$mic = false;
if (strtolower($mimetype) == 'multipart/signed') {
try {
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'AS2 message is signed.'));
// get MicChecksum from signature
$mic = $this->adapter->getMicChecksum($input);
$input = $this->adapter->verify($input);
$signed = true;
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'The sender used the algorithm "' . $structure->ctype_parameters['micalg'] . '" to sign the message.'));
// reload extracted content to get mimetype
$decoder = new Mail_mimeDecode(file_get_contents($input));
$structure = $decoder->decode($params);
$mimetype = $structure->ctype_primary . '/' . $structure->ctype_secondary;
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'Using certificate "' . $this->getPartnerFrom() . '" to verify signature.'));
} catch (Exception $e) {
throw new AS2Exception($e->getMessage(), 5);
}
} else {
// check requested algo
$mic = Adapter::calculateMicChecksum($input, 'sha1');
}
// security check
if (strtolower($mimetype) == 'multipart/report') {
// check about sign
/*if ($this->getPartnerFrom()->sec_signature_algorithm == Partner::SIGN_NONE && !$this->getPartnerFrom()->mdn_signed && $signed){
throw new AS2Exception('AS2 message is signed and shouldn\'t be.', 4);
}
else*/
if ($this->getPartnerFrom()->sec_signature_algorithm != Partner::SIGN_NONE && $this->getPartnerFrom()->mdn_signed && !$signed) {
throw new AS2Exception('AS2 message is not signed and should be.', 4);
}
} else {
// check about crypt
/*if ($this->getPartnerFrom()->sec_encrypt_algorithm == Partner::CRYPT_NONE && $crypted){
throw new AS2Exception('AS2 message is crypted and shouldn\'t be.', 4);
}
else*/
if ($this->getPartnerFrom()->sec_encrypt_algorithm != Partner::CRYPT_NONE && !$crypted) {
throw new AS2Exception('AS2 message is not crypted and should be.', 4);
}
// check about sign
/*if ($this->getPartnerFrom()->sec_signature_algorithm == Partner::SIGN_NONE && $signed){
throw new AS2Exception('AS2 message is signed and shouldn\'t be.', 4);
}
else*/
if ($this->getPartnerFrom()->sec_signature_algorithm != Partner::SIGN_NONE && !$signed) {
throw new AS2Exception('AS2 message is not signed and should be.', 4);
}
}
try {
// build object with extracted content
$message = file_get_contents($input);
$mime_part = Horde_MIME_Structure::parseTextMIMEMessage($message);
switch (strtolower($mimetype)) {
case 'multipart/report':
$params = array('partner_from' => $this->getPartnerTo(), 'partner_to' => $this->getPartnerFrom(), 'is_file' => false, 'mic' => $mic);
$object = $this->mdnFactory->build($mime_part, $params);
return $object;
default:
$params = array('partner_from' => $this->getPartnerFrom(), 'partner_to' => $this->getPartnerTo(), 'is_file' => false, 'mic' => $mic);
$object = $this->messageFactory->build($mime_part, $params);
$object->setHeaders($this->getHeaders());
return $object;
}
} catch (Exception $e) {
throw new AS2Exception($e->getMessage(), 6);
}
throw new AS2Exception('Unexpected error while handling message.', 6);
}
/**
* Handle a request (server side)
*
* @param request (If not set, get data from standard input)
*
* @return request The request handled
*/
public function handle(Request $request)
{
// handle any problem in case of SYNC MDN process
ob_start();
try {
$error = null;
$headers = $request->getHeaders();
$object = $request->getObject();
} catch (Exception $e) {
// get error while handling request
$error = $e;
//throw $e;
}
//
$mdn = null;
if ($object instanceof Message || !is_null($error) && !$object instanceof MDN) {
$object_type = self::TYPE_MESSAGE;
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'Incoming transmission is a Message.'));
try {
if (is_null($error)) {
$object->decode();
$files = $object->getFiles();
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, count($files) . ' payload(s) found in incoming transmission.'));
foreach ($files as $key => $file) {
$content = file_get_contents($file['path']);
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'Payload #' . ($key + 1) . ' : ' . round(strlen($content) / 1024, 2) . ' KB / "' . $file['filename'] . '".'));
$this->saveMessage($content, array(), 'payload');
}
$mdn = $object->generateMDN($error);
$mdn->encode($object);
} else {
throw $error;
}
} catch (Exception $e) {
$params = array('partner_from' => $headers->getHeader('as2-from'), 'partner_to' => $headers->getHeader('as2-to'));
$mdn = $this->mdnFactory->build($e, $params);
$mdn->setAttribute('original-message-id', $headers->getHeader('message-id'));
$mdn->encode();
}
} elseif ($object instanceof MDN) {
$object_type = self::TYPE_MDN;
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'Incoming transmission is a MDN.'));
} else {
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_ERROR, 'Malformed data.'));
}
// build MDN
if (!is_null($error) && $object_type == self::TYPE_MESSAGE) {
$params = array('partner_from' => $headers->getHeader('as2-from'), 'partner_to' => $headers->getHeader('as2-to'));
$mdn = $this->mdnFactory->build($e, $params);
$mdn->setAttribute('original-message-id', $headers->getHeader('message-id'));
$mdn->encode();
}
// send MDN
if (!is_null($mdn)) {
if (!$headers->getHeader('receipt-delivery-option')) {
// SYNC method
// re-active output data
ob_end_clean();
// send headers
foreach ($mdn->getHeaders() as $key => $value) {
$header = str_replace(array("\r", "\n", "\r\n"), '', $key . ': ' . $value);
header($header);
}
// output MDN
echo $mdn->getContent();
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'An AS2 MDN has been sent.'));
} else {
// ASYNC method
// cut connection and wait a few seconds
$this->closeConnectionAndWait(5);
// delegate the mdn sending to the client
$result = $this->client->sendRequest($mdn);
if ($result['info']['http_code'] == '200') {
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_INFO, 'An AS2 MDN has been sent.'));
} else {
$this->eventDispatcher->dispatch('log', new Log(Log::TYPE_ERROR, 'An error occurs while sending MDN message : ' . $result['info']['http_code']));
}
}
}
return $request;
}
