(self, typeid, requesthdr, seqhdr, body)
| 123 | return True |
| 124 | |
| 125 | def _process_message(self, typeid, requesthdr, seqhdr, body): |
| 126 | if typeid == ua.NodeId(ua.ObjectIds.CreateSessionRequest_Encoding_DefaultBinary): |
| 127 | self.logger.info("Create session request") |
| 128 | params = struct_from_binary(ua.CreateSessionParameters, body) |
| 129 | |
| 130 | # create the session on server |
| 131 | self.session = self.iserver.create_session(self.name) |
| 132 | # get a session creation result to send back |
| 133 | sessiondata = self.session.create_session(params, sockname=self.sockname) |
| 134 | |
| 135 | response = ua.CreateSessionResponse() |
| 136 | response.Parameters = sessiondata |
| 137 | response.Parameters.ServerCertificate = self._connection.security_policy.client_certificate |
| 138 | if self._connection.security_policy.server_certificate is None: |
| 139 | data = params.ClientNonce |
| 140 | else: |
| 141 | data = self._connection.security_policy.server_certificate + params.ClientNonce |
| 142 | response.Parameters.ServerSignature.Signature = \ |
| 143 | self._connection.security_policy.asymmetric_cryptography.signature(data) |
| 144 | |
| 145 | response.Parameters.ServerSignature.Algorithm = self._connection.security_policy.AsymmetricSignatureURI |
| 146 | |
| 147 | self.logger.info("sending create session response") |
| 148 | self.send_response(requesthdr.RequestHandle, seqhdr, response) |
| 149 | |
| 150 | elif typeid == ua.NodeId(ua.ObjectIds.CloseSessionRequest_Encoding_DefaultBinary): |
| 151 | self.logger.info("Close session request") |
| 152 | |
| 153 | if self.session: |
| 154 | deletesubs = ua.ua_binary.Primitives.Boolean.unpack(body) |
| 155 | self.session.close_session(deletesubs) |
| 156 | else: |
| 157 | self.logger.info("Request to close non-existing session") |
| 158 | |
| 159 | response = ua.CloseSessionResponse() |
| 160 | self.logger.info("sending close session response") |
| 161 | self.send_response(requesthdr.RequestHandle, seqhdr, response) |
| 162 | |
| 163 | elif typeid == ua.NodeId(ua.ObjectIds.ActivateSessionRequest_Encoding_DefaultBinary): |
| 164 | self.logger.info("Activate session request") |
| 165 | params = struct_from_binary(ua.ActivateSessionParameters, body) |
| 166 | |
| 167 | if not self.session: |
| 168 | self.logger.info("request to activate non-existing session") |
| 169 | raise utils.ServiceError(ua.StatusCodes.BadSessionIdInvalid) |
| 170 | |
| 171 | if self._connection.security_policy.client_certificate is None: |
| 172 | data = self.session.nonce |
| 173 | else: |
| 174 | data = self._connection.security_policy.client_certificate + self.session.nonce |
| 175 | self._connection.security_policy.asymmetric_cryptography.verify(data, params.ClientSignature.Signature) |
| 176 | |
| 177 | result = self.session.activate_session(params) |
| 178 | |
| 179 | response = ua.ActivateSessionResponse() |
| 180 | response.Parameters = result |
| 181 | |
| 182 | self.logger.info("sending read response") |
no test coverage detected