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-rw-r--r--plugins/check_http.c200
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;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 10:23:23 +0000