diff options
| -rw-r--r-- | plugins/check_http.c | 200 |
1 files changed, 111 insertions, 89 deletions
diff --git a/plugins/check_http.c b/plugins/check_http.c index db5d50dd..ecf61288 100644 --- a/plugins/check_http.c +++ b/plugins/check_http.c @@ -54,7 +54,8 @@ certificate expiration times.\n" -I, --IP-address=ADDRESS\n\ IP address or name (use numeric address if possible to bypass DNS lookup).\n\ -e, --expect=STRING\n\ - String to expect in first line of server response (default: %s)\n\ + String to expect in first (status) line of server response (default: %s)\n\ + If specified skips all other status line logic (ex: 3xx, 4xx, 5xx processing)\n\ -s, --string=STRING\n\ String to expect in the content\n\ -u, --url=PATH\n\ @@ -186,6 +187,7 @@ char *server_address = NULL; char *host_name = NULL; char *server_url = NULL; int server_url_length = 0; +int server_expect_yn = 0; char server_expect[MAX_INPUT_BUFFER] = HTTP_EXPECT; char string_expect[MAX_INPUT_BUFFER] = ""; int warning_time = 0; @@ -383,6 +385,8 @@ process_arguments (int argc, char **argv) onredirect = STATE_WARNING; if (!strcmp (optarg, "critical")) onredirect = STATE_CRITICAL; + if (verbose) + printf("option f:%d \n", onredirect); break; /* Note: H, I, and u must be malloc'd or will fail on redirects */ case 'H': /* Host Name (virtual host) */ @@ -416,6 +420,7 @@ process_arguments (int argc, char **argv) case 'e': /* string or substring */ strncpy (server_expect, optarg, MAX_INPUT_BUFFER - 1); server_expect[MAX_INPUT_BUFFER - 1] = 0; + server_expect_yn = 1; break; case 'R': /* regex */ #ifdef HAVE_REGEX_H @@ -615,6 +620,8 @@ check_http (void) } sprintf (buffer, "%s %s HTTP/1.0\r\n", http_method, server_url); send (sd, buffer, strlen (buffer), 0); + + /* optionally send the host header info */ if (strcmp (host_name, "")) { @@ -716,103 +723,119 @@ check_http (void) terminate (STATE_CRITICAL, msg); } - /* check the return code */ - /* server errors result in a critical state */ - if (strstr (status_line, "500") || - strstr (status_line, "501") || - strstr (status_line, "502") || - strstr (status_line, "503")) { - msg = ssprintf (msg, "HTTP CRITICAL: %s\n", status_line); - terminate (STATE_CRITICAL, msg); - } - /* client errors result in a warning state */ - if (strstr (status_line, "400") || - strstr (status_line, "401") || - strstr (status_line, "402") || - strstr (status_line, "403") || - strstr (status_line, "404")) { - msg = ssprintf (msg, "HTTP WARNING: %s\n", status_line); - terminate (STATE_WARNING, msg); + /* Exit here if server_expect was set by user and not default */ + if ( server_expect_yn ) { + msg = ssprintf (msg, "HTTP OK: Status line output matched \"%s\"\n",server_expect); + if (verbose) + printf ("%s\n",msg); + } + else { + + + /* check the return code */ + /* server errors result in a critical state */ + if (strstr (status_line, "500") || + strstr (status_line, "501") || + strstr (status_line, "502") || + strstr (status_line, "503")) { + msg = ssprintf (msg, "HTTP CRITICAL: %s\n", status_line); + terminate (STATE_CRITICAL, msg); + } + + /* client errors result in a warning state */ + if (strstr (status_line, "400") || + strstr (status_line, "401") || + strstr (status_line, "402") || + strstr (status_line, "403") || + strstr (status_line, "404")) { + msg = ssprintf (msg, "HTTP WARNING: %s\n", status_line); + terminate (STATE_WARNING, msg); + } - /* check redirected page if specified */ - if (strstr (status_line, "300") || - strstr (status_line, "301") || - strstr (status_line, "302") || - strstr (status_line, "303") || - strstr (status_line, "304")) { - if (onredirect == STATE_DEPENDENT) { + /* check redirected page if specified */ + if (strstr (status_line, "300") || + strstr (status_line, "301") || + strstr (status_line, "302") || + strstr (status_line, "303") || + strstr (status_line, "304")) { + if (onredirect == STATE_DEPENDENT) { - pos = header; - while (pos) { - server_address = realloc (server_address, MAX_IPV4_HOSTLENGTH); - if (server_address == NULL) - terminate (STATE_UNKNOWN, - "HTTP UNKNOWN: could not allocate server_address"); - if (strspn (pos, "\r\n") > server_url_length) { - server_url = realloc (server_url, strspn (pos, "\r\n")); - if (server_url == NULL) + pos = header; + while (pos) { + server_address = realloc (server_address, MAX_IPV4_HOSTLENGTH); + if (server_address == NULL) terminate (STATE_UNKNOWN, + "HTTP UNKNOWN: could not allocate server_address"); + if (strspn (pos, "\r\n") > server_url_length) { + server_url = realloc (server_url, strspn (pos, "\r\n")); + if (server_url == NULL) + terminate (STATE_UNKNOWN, "HTTP UNKNOWN: could not allocate server_url"); - server_url_length = strspn (pos, "\r\n"); - } - if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST URI_PORT URI_PATH, server_type, server_address, server_port_text, server_url) == 4) { - host_name = strscpy (host_name, server_address); - use_ssl = server_type_check (server_type); - server_port = atoi (server_port_text); - check_http (); - } - else if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST URI_PATH, server_type, server_address, server_url) == 3) { - host_name = strscpy (host_name, server_address); - use_ssl = server_type_check (server_type); - server_port = server_port_check (use_ssl); - check_http (); - } - else if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST URI_PORT, server_type, server_address, server_port_text) == 3) { - host_name = strscpy (host_name, server_address); - strcpy (server_url, "/"); - use_ssl = server_type_check (server_type); - server_port = atoi (server_port_text); - check_http (); - } - else if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST, server_type, server_address) == 2) { - host_name = strscpy (host_name, server_address); - strcpy (server_url, "/"); - use_ssl = server_type_check (server_type); - server_port = server_port_check (use_ssl); - check_http (); - } - else if (sscanf (pos, HDR_LOCATION URI_PATH, server_url) == 1) { - check_http (); - } - pos += (size_t) strcspn (pos, "\r\n"); - pos += (size_t) strspn (pos, "\r\n"); - } /* end while (pos) */ - printf ("HTTP UNKNOWN: Could not find redirect location - %s%s", - status_line, (display_html ? "</A>" : "")); - exit (STATE_UNKNOWN); - } /* end if (onredirect == STATE_DEPENDENT) */ - else if (onredirect == STATE_UNKNOWN) - printf ("HTTP UNKNOWN"); - else if (onredirect == STATE_OK) - printf ("HTTP ok"); - else if (onredirect == STATE_WARNING) - printf ("HTTP WARNING"); - else if (onredirect == STATE_CRITICAL) - printf ("HTTP CRITICAL"); - time (&end_time); - msg = ssprintf (msg, ": %s - %d second response time %s%s\n", + server_url_length = strspn (pos, "\r\n"); + } + if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST URI_PORT URI_PATH, server_type, server_address, server_port_text, server_url) == 4) { + host_name = strscpy (host_name, server_address); + use_ssl = server_type_check (server_type); + server_port = atoi (server_port_text); + check_http (); + } + else if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST URI_PATH, server_type, server_address, server_url) == 3 ) { + host_name = strscpy (host_name, server_address); + use_ssl = server_type_check (server_type); + server_port = server_port_check (use_ssl); + check_http (); + } + else if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST URI_PORT, server_type, server_address, server_port_text) == 3) { + host_name = strscpy (host_name, server_address); + strcpy (server_url, "/"); + use_ssl = server_type_check (server_type); + server_port = atoi (server_port_text); + check_http (); + } + else if (sscanf (pos, HDR_LOCATION URI_HTTP URI_HOST, server_type, server_address) == 2) { + host_name = strscpy (host_name, server_address); + strcpy (server_url, "/"); + use_ssl = server_type_check (server_type); + server_port = server_port_check (use_ssl); + check_http (); + } + else if (sscanf (pos, HDR_LOCATION URI_PATH, server_url) == 1) { + check_http (); + } + pos += (size_t) strcspn (pos, "\r\n"); + pos += (size_t) strspn (pos, "\r\n"); + } /* end while (pos) */ + printf ("HTTP UNKNOWN: Could not find redirect location - %s%s", + status_line, (display_html ? "</A>" : "")); + exit (STATE_UNKNOWN); + } /* end if (onredirect == STATE_DEPENDENT) */ + + else if (onredirect == STATE_UNKNOWN) + printf ("HTTP UNKNOWN"); + else if (onredirect == STATE_OK) + printf ("HTTP ok"); + else if (onredirect == STATE_WARNING) + printf ("HTTP WARNING"); + else if (onredirect == STATE_CRITICAL) + printf ("HTTP CRITICAL"); + time (&end_time); + msg = ssprintf (msg, ": %s - %d second response time %s%s\n", status_line, (int) (end_time - start_time), timestamp, (display_html ? "</A>" : "")); - terminate (onredirect, msg); - } /* end if (strstr (status_line, "30[0-4]") */ + terminate (onredirect, msg); + } /* end if (strstr (status_line, "30[0-4]") */ + + + } /* end else (server_expect_yn) */ + /* check elapsed time */ time (&end_time); msg = ssprintf (msg, "HTTP problem: %s - %d second response time %s%s\n", - status_line, (int) (end_time - start_time), - timestamp, (display_html ? "</A>" : "")); + status_line, (int) (end_time - start_time), + timestamp, (display_html ? "</A>" : "")); if (check_critical_time == TRUE && (end_time - start_time) > critical_time) terminate (STATE_CRITICAL, msg); if (check_warning_time == TRUE && (end_time - start_time) > warning_time) @@ -865,12 +888,11 @@ check_http (void) terminate (STATE_OK, msg); return STATE_UNKNOWN; } - + #ifdef HAVE_SSL -int -connect_SSL (void) +int connect_SSL (void) { SSL_METHOD *meth; |