/************************************************************************ * * NOTIFICATIONS.C - Nagios Notifications CGI * * Copyright (c) 1999-2008 Ethan Galstad (egalstad@nagios.org) * Last Modified: 01-08-2008 * * This CGI program will display the notification events for * a given host or contact or for all contacts/hosts. * * License: * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ***********************************************************************/ #include "../include/config.h" #include "../include/common.h" #include "../include/getcgi.h" #include "../include/cgiutils.h" #include "../include/cgiauth.h" extern char main_config_file[MAX_FILENAME_LENGTH]; extern char url_html_path[MAX_FILENAME_LENGTH]; extern char url_images_path[MAX_FILENAME_LENGTH]; extern char url_docs_path[MAX_FILENAME_LENGTH]; extern char url_stylesheets_path[MAX_FILENAME_LENGTH]; extern int log_rotation_method; #define FIND_HOST 1 #define FIND_CONTACT 2 #define FIND_SERVICE 3 #define MAX_QUERYNAME_LENGTH 256 #define SERVICE_NOTIFICATION 0 #define HOST_NOTIFICATION 1 #define SERVICE_NOTIFICATION_STRING "] SERVICE NOTIFICATION:" #define HOST_NOTIFICATION_STRING "] HOST NOTIFICATION:" void display_notifications(void); void document_header(int); void document_footer(void); int process_cgivars(void); authdata current_authdata; char log_file_to_use[MAX_FILENAME_LENGTH]; int log_archive = 0; int query_type = FIND_HOST; int find_all = TRUE; char *query_contact_name = ""; char *query_host_name = ""; char *query_svc_description = ""; int notification_options = NOTIFICATION_ALL; int use_lifo = TRUE; int embedded = FALSE; int display_header = TRUE; int main(void) { int result = OK; char temp_buffer[MAX_INPUT_BUFFER]; char temp_buffer2[MAX_INPUT_BUFFER]; /* get the arguments passed in the URL */ process_cgivars(); /* reset internal variables */ reset_cgi_vars(); /* read the CGI configuration file */ result = read_cgi_config_file(get_cgi_config_location()); if(result == ERROR) { document_header(FALSE); cgi_config_file_error(get_cgi_config_location()); document_footer(); return ERROR; } /* read the main configuration file */ result = read_main_config_file(main_config_file); if(result == ERROR) { document_header(FALSE); main_config_file_error(main_config_file); document_footer(); return ERROR; } /* read all object configuration data */ result = read_all_object_configuration_data(main_config_file, READ_ALL_OBJECT_DATA); if(result == ERROR) { document_header(FALSE); object_data_error(); document_footer(); return ERROR; } document_header(TRUE); /* get authentication information */ get_authentication_information(¤t_authdata); /* determine what log file we should use */ get_log_archive_to_use(log_archive, log_file_to_use, (int)sizeof(log_file_to_use)); if(display_header == TRUE) { /* begin top table */ printf("\n"); printf("\n"); /* left column of top row */ printf("\n"); /* middle column of top row */ printf("\n"); /* right hand column of top row */ printf("\n"); /* end of top table */ printf("\n"); printf("
\n"); if(query_type == FIND_SERVICE) snprintf(temp_buffer, sizeof(temp_buffer) - 1, "Service Notifications"); else if(query_type == FIND_HOST) { if(find_all == TRUE) snprintf(temp_buffer, sizeof(temp_buffer) - 1, "Notifications"); else snprintf(temp_buffer, sizeof(temp_buffer) - 1, "Host Notifications"); } else snprintf(temp_buffer, sizeof(temp_buffer) - 1, "Contact Notifications"); display_info_table(temp_buffer, FALSE, ¤t_authdata); if(query_type == FIND_HOST || query_type == FIND_SERVICE) { printf("\n"); printf("\n"); printf("\n"); } printf("\n"); printf("
\n"); if(query_type == FIND_SERVICE) printf("Service '%s' On Host '%s'", query_svc_description, query_host_name); else if(query_type == FIND_HOST) { if(find_all == TRUE) printf("All Hosts and Services"); else printf("Host '%s'", query_host_name); } else { if(find_all == TRUE) printf("All Contacts"); else printf("Contact '%s'", query_contact_name); } printf("
\n"); printf("
\n"); if(query_type == FIND_SERVICE) { snprintf(temp_buffer, sizeof(temp_buffer) - 1, "%s?%shost=%s&", NOTIFICATIONS_CGI, (use_lifo == FALSE) ? "oldestfirst&" : "", url_encode(query_host_name)); snprintf(temp_buffer2, sizeof(temp_buffer2) - 1, "service=%s&type=%d&", url_encode(query_svc_description), notification_options); strncat(temp_buffer, temp_buffer2, sizeof(temp_buffer) - strlen(temp_buffer) - 1); } else snprintf(temp_buffer, sizeof(temp_buffer) - 1, "%s?%s%s=%s&type=%d&", NOTIFICATIONS_CGI, (use_lifo == FALSE) ? "oldestfirst&" : "", (query_type == FIND_HOST) ? "host" : "contact", (query_type == FIND_HOST) ? url_encode(query_host_name) : url_encode(query_contact_name), notification_options); temp_buffer[sizeof(temp_buffer) - 1] = '\x0'; display_nav_table(temp_buffer, log_archive); printf("
\n"); printf("
\n", NOTIFICATIONS_CGI); if(query_type == FIND_SERVICE) { printf("\n", escape_string(query_host_name)); printf("\n", escape_string(query_svc_description)); } else printf("\n", (query_type == FIND_HOST) ? "host" : "contact", (query_type == FIND_HOST) ? escape_string(query_host_name) : escape_string(query_contact_name)); printf("\n", log_archive); printf("\n"); printf("\n"); if(query_type == FIND_SERVICE) printf(""); else printf("", (find_all == TRUE) ? "all" : "this", (query_type == FIND_HOST) ? "host" : "contact", (find_all == TRUE) ? "s" : ""); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("", (use_lifo == FALSE) ? "checked" : ""); printf("\n"); printf("\n"); /* display context-sensitive help */ printf("\n"); printf("
Notification detail level for this service:Notification detail level for %s %s%s:
Older Entries First:
\n"); display_context_help(CONTEXTHELP_NOTIFICATIONS); printf("
\n"); printf("
\n"); printf("
\n"); } /* display notifications */ display_notifications(); document_footer(); /* free allocated memory */ free_memory(); return OK; } void document_header(int use_stylesheet) { char date_time[MAX_DATETIME_LENGTH]; time_t current_time; time_t expire_time; printf("Cache-Control: no-store\r\n"); printf("Pragma: no-cache\r\n"); time(¤t_time); get_time_string(¤t_time, date_time, (int)sizeof(date_time), HTTP_DATE_TIME); printf("Last-Modified: %s\r\n", date_time); expire_time = (time_t)0L; get_time_string(&expire_time, date_time, (int)sizeof(date_time), HTTP_DATE_TIME); printf("Expires: %s\r\n", date_time); printf("Content-type: text/html\r\n\r\n"); if(embedded == TRUE) return; printf("\n"); printf("\n"); printf("\n", url_images_path); printf("\n"); printf("Alert Notifications\n"); printf("\n"); if(use_stylesheet == TRUE) { printf("\n", url_stylesheets_path, COMMON_CSS); printf("\n", url_stylesheets_path, NOTIFICATIONS_CSS); } printf("\n"); printf("\n"); /* include user SSI header */ include_ssi_files(NOTIFICATIONS_CGI, SSI_HEADER); return; } void document_footer(void) { if(embedded == TRUE) return; /* include user SSI footer */ include_ssi_files(NOTIFICATIONS_CGI, SSI_FOOTER); printf("\n"); printf("\n"); return; } int process_cgivars(void) { char **variables; int error = FALSE; int x; variables = getcgivars(); for(x = 0; variables[x] != NULL; x++) { /* do some basic length checking on the variable identifier to prevent buffer overflows */ if(strlen(variables[x]) >= MAX_INPUT_BUFFER - 1) { x++; continue; } /* we found the host argument */ else if(!strcmp(variables[x], "host")) { query_type = FIND_HOST; x++; if(variables[x] == NULL) { error = TRUE; break; } if((query_host_name = strdup(variables[x])) == NULL) query_host_name = ""; strip_html_brackets(query_host_name); if(!strcmp(query_host_name, "all")) find_all = TRUE; else find_all = FALSE; } /* we found the contact argument */ else if(!strcmp(variables[x], "contact")) { query_type = FIND_CONTACT; x++; if(variables[x] == NULL) { error = TRUE; break; } if((query_contact_name = strdup(variables[x])) == NULL) query_contact_name = ""; strip_html_brackets(query_contact_name); if(!strcmp(query_contact_name, "all")) find_all = TRUE; else find_all = FALSE; } /* we found the service argument */ else if(!strcmp(variables[x], "service")) { query_type = FIND_SERVICE; x++; if(variables[x] == NULL) { error = TRUE; break; } if((query_svc_description = strdup(variables[x])) == NULL) query_svc_description = ""; strip_html_brackets(query_svc_description); } /* we found the notification type argument */ else if(!strcmp(variables[x], "type")) { x++; if(variables[x] == NULL) { error = TRUE; break; } notification_options = atoi(variables[x]); } /* we found the log archive argument */ else if(!strcmp(variables[x], "archive")) { x++; if(variables[x] == NULL) { error = TRUE; break; } log_archive = atoi(variables[x]); if(log_archive < 0) log_archive = 0; } /* we found the order argument */ else if(!strcmp(variables[x], "oldestfirst")) { use_lifo = FALSE; } /* we found the embed option */ else if(!strcmp(variables[x], "embedded")) embedded = TRUE; /* we found the noheader option */ else if(!strcmp(variables[x], "noheader")) display_header = FALSE; } /* * Set some default values if not already set. * Done here as they won't be set if variable * not provided via cgi parameters * Only required for hosts & contacts, not services * as there is no service_name=all option */ if(query_type == FIND_HOST && strlen(query_host_name) == 0) { query_host_name = "all"; find_all = TRUE; } if(query_type == FIND_CONTACT && strlen(query_contact_name) == 0) { query_contact_name = "all"; find_all = TRUE; } /* free memory allocated to the CGI variables */ free_cgivars(variables); return error; } void display_notifications(void) { mmapfile *thefile = NULL; char *input = NULL; char *temp_buffer; char date_time[MAX_DATETIME_LENGTH]; char alert_level[MAX_INPUT_BUFFER]; char alert_level_class[MAX_INPUT_BUFFER]; char contact_name[MAX_INPUT_BUFFER]; char service_name[MAX_INPUT_BUFFER]; char host_name[MAX_INPUT_BUFFER]; char method_name[MAX_INPUT_BUFFER]; int show_entry; int total_notifications; int notification_type = SERVICE_NOTIFICATION; int notification_detail_type = NOTIFICATION_SERVICE_CRITICAL; int odd = 0; time_t t; host *temp_host; service *temp_service; int result; if(use_lifo == TRUE) { result = read_file_into_lifo(log_file_to_use); if(result != LIFO_OK) { if(result == LIFO_ERROR_MEMORY) { printf("

Not enough memory to reverse log file - displaying notifications in natural order...

"); } else if(result == LIFO_ERROR_FILE) { printf("

Error: Cannot open log file '%s' for reading!

", log_file_to_use); return; } use_lifo = FALSE; } } if(use_lifo == FALSE) { if((thefile = mmap_fopen(log_file_to_use)) == NULL) { printf("

Error: Cannot open log file '%s' for reading!

", log_file_to_use); return; } } printf("

\n"); printf("

\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); printf("\n"); total_notifications = 0; while(1) { free(input); if(use_lifo == TRUE) { if((input = pop_lifo()) == NULL) break; } else { if((input = mmap_fgets(thefile)) == NULL) break; } strip(input); /* see if this line contains the notification event string */ if(strstr(input, HOST_NOTIFICATION_STRING) || strstr(input, SERVICE_NOTIFICATION_STRING)) { if(strstr(input, HOST_NOTIFICATION_STRING)) notification_type = HOST_NOTIFICATION; else notification_type = SERVICE_NOTIFICATION; /* get the date/time */ temp_buffer = (char *)strtok(input, "]"); t = (time_t)(temp_buffer == NULL) ? 0L : strtoul(temp_buffer + 1, NULL, 10); get_time_string(&t, date_time, (int)sizeof(date_time), SHORT_DATE_TIME); strip(date_time); /* get the contact name */ temp_buffer = (char *)strtok(NULL, ":"); temp_buffer = (char *)strtok(NULL, ";"); snprintf(contact_name, sizeof(contact_name), "%s", (temp_buffer == NULL) ? "" : temp_buffer + 1); contact_name[sizeof(contact_name) - 1] = '\x0'; /* get the host name */ temp_buffer = (char *)strtok(NULL, ";"); snprintf(host_name, sizeof(host_name), "%s", (temp_buffer == NULL) ? "" : temp_buffer); host_name[sizeof(host_name) - 1] = '\x0'; /* get the service name */ if(notification_type == SERVICE_NOTIFICATION) { temp_buffer = (char *)strtok(NULL, ";"); snprintf(service_name, sizeof(service_name), "%s", (temp_buffer == NULL) ? "" : temp_buffer); service_name[sizeof(service_name) - 1] = '\x0'; } /* get the alert level */ temp_buffer = (char *)strtok(NULL, ";"); snprintf(alert_level, sizeof(alert_level), "%s", (temp_buffer == NULL) ? "" : temp_buffer); alert_level[sizeof(alert_level) - 1] = '\x0'; if(notification_type == SERVICE_NOTIFICATION) { if(!strcmp(alert_level, "CRITICAL")) { notification_detail_type = NOTIFICATION_SERVICE_CRITICAL; strcpy(alert_level_class, "CRITICAL"); } else if(!strcmp(alert_level, "WARNING")) { notification_detail_type = NOTIFICATION_SERVICE_WARNING; strcpy(alert_level_class, "WARNING"); } else if(!strcmp(alert_level, "RECOVERY") || !strcmp(alert_level, "OK")) { strcpy(alert_level, "OK"); notification_detail_type = NOTIFICATION_SERVICE_RECOVERY; strcpy(alert_level_class, "OK"); } else if(strstr(alert_level, "CUSTOM (")) { notification_detail_type = NOTIFICATION_SERVICE_CUSTOM; strcpy(alert_level_class, "CUSTOM"); } else if(strstr(alert_level, "ACKNOWLEDGEMENT (")) { notification_detail_type = NOTIFICATION_SERVICE_ACK; strcpy(alert_level_class, "ACKNOWLEDGEMENT"); } else if(strstr(alert_level, "FLAPPINGSTART (")) { strcpy(alert_level, "FLAPPING START"); notification_detail_type = NOTIFICATION_SERVICE_FLAP; strcpy(alert_level_class, "UNKNOWN"); } else if(strstr(alert_level, "FLAPPINGSTOP (")) { strcpy(alert_level, "FLAPPING STOP"); notification_detail_type = NOTIFICATION_SERVICE_FLAP; strcpy(alert_level_class, "UNKNOWN"); } else { strcpy(alert_level, "UNKNOWN"); notification_detail_type = NOTIFICATION_SERVICE_UNKNOWN; strcpy(alert_level_class, "UNKNOWN"); } } else { if(!strcmp(alert_level, "DOWN")) { strncpy(alert_level, "HOST DOWN", sizeof(alert_level)); strcpy(alert_level_class, "HOSTDOWN"); notification_detail_type = NOTIFICATION_HOST_DOWN; } else if(!strcmp(alert_level, "UNREACHABLE")) { strncpy(alert_level, "HOST UNREACHABLE", sizeof(alert_level)); strcpy(alert_level_class, "HOSTUNREACHABLE"); notification_detail_type = NOTIFICATION_HOST_UNREACHABLE; } else if(!strcmp(alert_level, "RECOVERY") || !strcmp(alert_level, "UP")) { strncpy(alert_level, "HOST UP", sizeof(alert_level)); strcpy(alert_level_class, "HOSTUP"); notification_detail_type = NOTIFICATION_HOST_RECOVERY; } else if(strstr(alert_level, "CUSTOM (")) { strcpy(alert_level_class, "HOSTCUSTOM"); notification_detail_type = NOTIFICATION_HOST_CUSTOM; } else if(strstr(alert_level, "ACKNOWLEDGEMENT (")) { strcpy(alert_level_class, "HOSTACKNOWLEDGEMENT"); notification_detail_type = NOTIFICATION_HOST_ACK; } else if(strstr(alert_level, "FLAPPINGSTART (")) { strcpy(alert_level, "FLAPPING START"); strcpy(alert_level_class, "UNKNOWN"); notification_detail_type = NOTIFICATION_HOST_FLAP; } else if(strstr(alert_level, "FLAPPINGSTOP (")) { strcpy(alert_level, "FLAPPING STOP"); strcpy(alert_level_class, "UNKNOWN"); notification_detail_type = NOTIFICATION_HOST_FLAP; } } /* get the method name */ temp_buffer = (char *)strtok(NULL, ";"); snprintf(method_name, sizeof(method_name), "%s", (temp_buffer == NULL) ? "" : temp_buffer); method_name[sizeof(method_name) - 1] = '\x0'; /* move to the informational message */ temp_buffer = strtok(NULL, ";"); show_entry = FALSE; /* if we're searching by contact, filter out unwanted contact */ if(query_type == FIND_CONTACT) { if(find_all == TRUE) show_entry = TRUE; else if(!strcmp(query_contact_name, contact_name)) show_entry = TRUE; } else if(query_type == FIND_HOST) { if(find_all == TRUE) show_entry = TRUE; else if(!strcmp(query_host_name, host_name)) show_entry = TRUE; } else if(query_type == FIND_SERVICE) { if(!strcmp(query_host_name, host_name) && !strcmp(query_svc_description, service_name)) show_entry = TRUE; } if(show_entry == TRUE) { if(notification_options == NOTIFICATION_ALL) show_entry = TRUE; else if(notification_options == NOTIFICATION_HOST_ALL && notification_type == HOST_NOTIFICATION) show_entry = TRUE; else if(notification_options == NOTIFICATION_SERVICE_ALL && notification_type == SERVICE_NOTIFICATION) show_entry = TRUE; else if(notification_detail_type & notification_options) show_entry = TRUE; else show_entry = FALSE; } /* make sure user has authorization to view this notification */ if(notification_type == HOST_NOTIFICATION) { temp_host = find_host(host_name); if(is_authorized_for_host(temp_host, ¤t_authdata) == FALSE) show_entry = FALSE; } else { temp_service = find_service(host_name, service_name); if(is_authorized_for_service(temp_service, ¤t_authdata) == FALSE) show_entry = FALSE; } if(show_entry == TRUE) { total_notifications++; if(odd) { odd = 0; printf("\n"); } else { odd = 1; printf("\n"); } printf("\n", (odd) ? "Even" : "Odd", EXTINFO_CGI, DISPLAY_HOST_INFO, url_encode(host_name), host_name); if(notification_type == SERVICE_NOTIFICATION) { printf("\n", url_encode(service_name), service_name); } else printf("\n", (odd) ? "Even" : "Odd"); printf("\n", alert_level_class, alert_level); printf("\n", (odd) ? "Even" : "Odd", date_time); printf("\n", (odd) ? "Even" : "Odd", CONFIG_CGI, url_encode(contact_name), contact_name); printf("\n", (odd) ? "Even" : "Odd", CONFIG_CGI, url_encode(method_name), method_name); printf("\n", (odd) ? "Even" : "Odd", html_encode(temp_buffer, FALSE)); printf("\n"); } } } printf("
HostServiceTypeTimeContactNotification CommandInformation
%s%sN/A%s%s%s%s%s
\n"); printf("
\n"); printf("

\n"); if(total_notifications == 0) { printf("

No notifications have been recorded"); if(find_all == FALSE) { if(query_type == FIND_SERVICE) printf(" for this service"); else if(query_type == FIND_CONTACT) printf(" for this contact"); else printf(" for this host"); } printf(" in %s log file

", (log_archive == 0) ? "the current" : "this archived"); } free(input); if(use_lifo == TRUE) free_lifo_memory(); else mmap_fclose(thefile); return; }