| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include "config.h" |
| |
| #include "log.h" |
| #include "user.h" |
| |
| #include <guacamole/client.h> |
| #include <guacamole/error.h> |
| #include <guacamole/parser.h> |
| #include <guacamole/protocol.h> |
| #include <guacamole/socket.h> |
| #include <guacamole/user.h> |
| |
| #include <pthread.h> |
| #include <stdlib.h> |
| |
| void* guacd_user_input_thread(void* data) { |
| |
| guacd_user_input_thread_params* params = (guacd_user_input_thread_params*) data; |
| guac_user* user = params->user; |
| guac_parser* parser = params->parser; |
| guac_client* client = user->client; |
| guac_socket* socket = user->socket; |
| |
| /* Guacamole user input loop */ |
| while (client->state == GUAC_CLIENT_RUNNING && user->active) { |
| |
| /* Read instruction, stop on error */ |
| if (guac_parser_read(parser, socket, GUACD_USEC_TIMEOUT)) { |
| |
| if (guac_error == GUAC_STATUS_TIMEOUT) |
| guac_user_abort(user, GUAC_PROTOCOL_STATUS_CLIENT_TIMEOUT, "User is not responding."); |
| |
| else { |
| if (guac_error != GUAC_STATUS_CLOSED) |
| guacd_client_log_guac_error(client, GUAC_LOG_WARNING, |
| "Guacamole connection failure"); |
| guac_user_stop(user); |
| } |
| |
| return NULL; |
| } |
| |
| /* Reset guac_error and guac_error_message (user/client handlers are not |
| * guaranteed to set these) */ |
| guac_error = GUAC_STATUS_SUCCESS; |
| guac_error_message = NULL; |
| |
| /* Call handler, stop on error */ |
| if (guac_user_handle_instruction(user, parser->opcode, parser->argc, parser->argv) < 0) { |
| |
| /* Log error */ |
| guacd_client_log_guac_error(client, GUAC_LOG_WARNING, |
| "User connection aborted"); |
| |
| /* Log handler details */ |
| guac_user_log(user, GUAC_LOG_DEBUG, "Failing instruction handler in user was \"%s\"", parser->opcode); |
| |
| guac_user_stop(user); |
| return NULL; |
| } |
| |
| } |
| |
| return NULL; |
| |
| } |
| |
| int guacd_user_start(guac_parser* parser, guac_user* user) { |
| |
| guacd_user_input_thread_params params = { |
| .parser = parser, |
| .user = user |
| }; |
| |
| pthread_t input_thread; |
| |
| if (pthread_create(&input_thread, NULL, guacd_user_input_thread, (void*) ¶ms)) { |
| guac_user_log(user, GUAC_LOG_ERROR, "Unable to start input thread"); |
| guac_user_stop(user); |
| return -1; |
| } |
| |
| /* Wait for I/O threads */ |
| pthread_join(input_thread, NULL); |
| |
| /* Explicitly signal disconnect */ |
| guac_protocol_send_disconnect(user->socket); |
| guac_socket_flush(user->socket); |
| |
| /* Done */ |
| return 0; |
| |
| } |
| |