| /* |
| * 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 "client.h" |
| #include "common/clipboard.h" |
| #include "common/recording.h" |
| #include "common-ssh/sftp.h" |
| #include "ssh.h" |
| #include "terminal/terminal.h" |
| #include "user.h" |
| |
| #include <langinfo.h> |
| #include <locale.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <guacamole/client.h> |
| |
| int guac_client_init(guac_client* client) { |
| |
| /* Set client args */ |
| client->args = GUAC_SSH_CLIENT_ARGS; |
| |
| /* Allocate client instance data */ |
| guac_ssh_client* ssh_client = calloc(1, sizeof(guac_ssh_client)); |
| client->data = ssh_client; |
| |
| /* Init clipboard */ |
| ssh_client->clipboard = guac_common_clipboard_alloc(GUAC_SSH_CLIPBOARD_MAX_LENGTH); |
| |
| /* Set handlers */ |
| client->join_handler = guac_ssh_user_join_handler; |
| client->free_handler = guac_ssh_client_free_handler; |
| |
| /* Set locale and warn if not UTF-8 */ |
| setlocale(LC_CTYPE, ""); |
| if (strcmp(nl_langinfo(CODESET), "UTF-8") != 0) { |
| guac_client_log(client, GUAC_LOG_INFO, |
| "Current locale does not use UTF-8. Some characters may " |
| "not render correctly."); |
| } |
| |
| /* Success */ |
| return 0; |
| |
| } |
| |
| int guac_ssh_client_free_handler(guac_client* client) { |
| |
| guac_ssh_client* ssh_client = (guac_ssh_client*) client->data; |
| |
| /* Close SSH channel */ |
| if (ssh_client->term_channel != NULL) { |
| libssh2_channel_send_eof(ssh_client->term_channel); |
| libssh2_channel_close(ssh_client->term_channel); |
| } |
| |
| /* Free terminal (which may still be using term_channel) */ |
| if (ssh_client->term != NULL) { |
| /* Stop the terminal to unblock any pending reads/writes */ |
| guac_terminal_stop(ssh_client->term); |
| |
| /* Wait ssh_client_thread to finish before freeing the terminal */ |
| pthread_join(ssh_client->client_thread, NULL); |
| guac_terminal_free(ssh_client->term); |
| } |
| |
| /* Free terminal channel now that the terminal is finished */ |
| if (ssh_client->term_channel != NULL) |
| libssh2_channel_free(ssh_client->term_channel); |
| |
| /* Clean up the SFTP filesystem object and session */ |
| if (ssh_client->sftp_filesystem) { |
| guac_common_ssh_destroy_sftp_filesystem(ssh_client->sftp_filesystem); |
| guac_common_ssh_destroy_session(ssh_client->sftp_session); |
| } |
| |
| /* Clean up recording, if in progress */ |
| if (ssh_client->recording != NULL) |
| guac_common_recording_free(ssh_client->recording); |
| |
| /* Free interactive SSH session */ |
| if (ssh_client->session != NULL) |
| guac_common_ssh_destroy_session(ssh_client->session); |
| |
| /* Free SSH client credentials */ |
| if (ssh_client->user != NULL) |
| guac_common_ssh_destroy_user(ssh_client->user); |
| |
| /* Free parsed settings */ |
| if (ssh_client->settings != NULL) |
| guac_ssh_settings_free(ssh_client->settings); |
| |
| /* Free client structure */ |
| guac_common_clipboard_free(ssh_client->clipboard); |
| free(ssh_client); |
| |
| guac_common_ssh_uninit(); |
| return 0; |
| } |
| |