- foreach ($this->formatClasses() as $class) {
- try {
- $envelope = $this->createMagicEnv($xml, $actor, $class);
- } catch (Exception $e) {
- common_log(LOG_ERR, "Salmon unable to sign: " . $e->getMessage());
- return false;
- }
-
- $headers = array('Content-Type: application/magic-envelope+xml');
-
- try {
- $client = new HTTPClient();
- $client->setBody($envelope);
- $response = $client->post($endpoint_uri, $headers);
- } catch (HTTP_Request2_Exception $e) {
- common_log(LOG_ERR, "Salmon ($class) post to $endpoint_uri failed: " . $e->getMessage());
- continue;
- }
- if ($response->getStatus() != 200) {
- common_log(LOG_ERR, "Salmon ($class) at $endpoint_uri returned status " .
- $response->getStatus() . ': ' . $response->getBody());
- continue;
- }
-
- // Success!
- return true;
- }
- return false;
- }
-
- /**
- * List the magic envelope signature class variants in the order we try them.
- * Multiples are needed for backwards-compat with StatusNet prior to 0.9.7,
- * which used a draft version of the magic envelope spec.
- */
- protected function formatClasses() {
- return array('MagicEnvelope', 'MagicEnvelopeCompat');
- }
-
- /**
- * Encode the given string as a signed MagicEnvelope XML document,
- * using the keypair for the given local user profile.
- *
- * Side effects: will create and store a keypair on-demand if one
- * hasn't already been generated for this user. This can be very slow
- * on some systems.
- *
- * @param string $text XML fragment to sign, assumed to be Atom
- * @param Profile $actor Profile of a local user to use as signer
- * @param string $class to override the magic envelope signature version, pass a MagicEnvelope subclass here
- *
- * @return string XML string representation of magic envelope
- *
- * @throws Exception on bad profile input or key generation problems
- * @fixme if signing fails, this seems to return the original text without warning. Is there a reason for this?
- */
- public function createMagicEnv($text, $actor, $class='MagicEnvelope')
- {
- $magic_env = new $class();
-
- $user = User::staticGet('id', $actor->id);
- if ($user->id) {
- // Use local key
- $magickey = Magicsig::staticGet('user_id', $user->id);
- if (!$magickey) {
- // No keypair yet, let's generate one.
- $magickey = new Magicsig();
- $magickey->generate($user->id);
- }
- } else {
- // TRANS: Exception.
- throw new Exception(_m('Salmon invalid actor for signing.'));
- }
-