| /* |
| * 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 "client.h" |
| #include "common/clipboard.h" |
| #include "kubernetes.h" |
| #include "settings.h" |
| #include "user.h" |
| |
| #include <guacamole/client.h> |
| #include <libwebsockets.h> |
| |
| #include <langinfo.h> |
| #include <locale.h> |
| #include <pthread.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| guac_client* guac_kubernetes_lws_current_client = NULL; |
| |
| /** |
| * Logging callback invoked by libwebsockets to log a single line of logging |
| * output. As libwebsockets messages are all generally low-level, the log |
| * level provided by libwebsockets is ignored here, with all messages logged |
| * instead at guacd's debug level. |
| * |
| * @param level |
| * The libwebsockets log level associated with the log message. This value |
| * is ignored by this implementation of the logging callback. |
| * |
| * @param line |
| * The line of logging output to log. |
| */ |
| static void guac_kubernetes_log(int level, const char* line) { |
| |
| char buffer[1024]; |
| |
| /* Drop log message if there's nowhere to log yet */ |
| if (guac_kubernetes_lws_current_client == NULL) |
| return; |
| |
| /* Trim length of line to fit buffer (plus null terminator) */ |
| int length = strlen(line); |
| if (length > sizeof(buffer) - 1) |
| length = sizeof(buffer) - 1; |
| |
| /* Copy as much of the received line as will fit in the buffer */ |
| memcpy(buffer, line, length); |
| |
| /* If the line ends with a newline character, trim the character */ |
| if (length > 0 && buffer[length - 1] == '\n') |
| length--; |
| |
| /* Null-terminate the trimmed string */ |
| buffer[length] = '\0'; |
| |
| /* Log using guacd's own log facilities */ |
| guac_client_log(guac_kubernetes_lws_current_client, GUAC_LOG_DEBUG, |
| "libwebsockets: %s", buffer); |
| |
| } |
| |
| int guac_client_init(guac_client* client) { |
| |
| /* Ensure reference to main guac_client remains available in all |
| * libwebsockets contexts */ |
| guac_kubernetes_lws_current_client = client; |
| |
| /* Redirect libwebsockets logging */ |
| lws_set_log_level(LLL_ERR | LLL_WARN | LLL_NOTICE | LLL_INFO, |
| guac_kubernetes_log); |
| |
| /* Set client args */ |
| client->args = GUAC_KUBERNETES_CLIENT_ARGS; |
| |
| /* Allocate client instance data */ |
| guac_kubernetes_client* kubernetes_client = calloc(1, sizeof(guac_kubernetes_client)); |
| client->data = kubernetes_client; |
| |
| /* Init clipboard */ |
| kubernetes_client->clipboard = guac_common_clipboard_alloc(GUAC_KUBERNETES_CLIPBOARD_MAX_LENGTH); |
| |
| /* Set handlers */ |
| client->join_handler = guac_kubernetes_user_join_handler; |
| client->free_handler = guac_kubernetes_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_kubernetes_client_free_handler(guac_client* client) { |
| |
| guac_kubernetes_client* kubernetes_client = |
| (guac_kubernetes_client*) client->data; |
| |
| /* Wait client thread to terminate */ |
| pthread_join(kubernetes_client->client_thread, NULL); |
| |
| /* Free settings */ |
| if (kubernetes_client->settings != NULL) |
| guac_kubernetes_settings_free(kubernetes_client->settings); |
| |
| guac_common_clipboard_free(kubernetes_client->clipboard); |
| free(kubernetes_client); |
| return 0; |
| |
| } |
| |