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diff --git a/plugins/check_http.c b/plugins/check_http.c
index d6f2c15a252d750d2ce64c4b39b9d4ec5ac4558e..4dcf1a5a8db8fa0ea0c33cfa32b8b786b1c7b8c3 100644 (file)
--- a/plugins/check_http.c
+++ b/plugins/check_http.c
-/****************************************************************************
- *
- * Program: HTTP plugin for Nagios
- * License: GPL
- *
- * License Information:
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * $Id$
- *
- *****************************************************************************/
+/******************************************************************************
-const char *progname = "check_http";
-#define REVISION "$Revision$"
-#define COPYRIGHT "1999-2001"
-#define AUTHORS "Ethan Galstad/Karl DeBisschop"
-#define EMAIL "kdebisschop@users.sourceforge.net"
-
-#include "config.h"
-#include "common.h"
-#include "netutils.h"
-#include "utils.h"
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-#define SUMMARY "\
-This plugin tests the HTTP service on the specified host. It can test\n\
-normal (http) and secure (https) servers, follow redirects, search for\n\
-strings and regular expressions, check connection times, and report on\n\
-certificate expiration times.\n"
+ 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.
-#define OPTIONS "\
-(-H <vhost> | -I <IP-address>) [-u <uri>] [-p <port>]\n\
- [-w <warn time>] [-c <critical time>] [-t <timeout>] [-L]\n\
- [-a auth] [-f <ok | warn | critcal | follow>] [-e <expect>]\n\
- [-s string] [-l] [-r <regex> | -R <case-insensitive regex>]\n\
- [-P string] [-m min_pg_size]"
+ 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.
-#define LONGOPTIONS "\
- -H, --hostname=ADDRESS\n\
- Host name argument for servers using host headers (virtual host)\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 (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\
- URL to GET or POST (default: /)\n\
- -p, --port=INTEGER\n\
- Port number (default: %d)\n\
- -P, --post=STRING\n\
- URL encoded http POST data\n\
- -w, --warning=INTEGER\n\
- Response time to result in warning status (seconds)\n\
- -c, --critical=INTEGER\n\
- Response time to result in critical status (seconds)\n\
- -t, --timeout=INTEGER\n\
- Seconds before connection times out (default: %d)\n\
- -a, --authorization=AUTH_PAIR\n\
- Username:password on sites with basic authentication\n\
- -L, --link=URL\n\
- Wrap output in HTML link (obsoleted by urlize)\n\
- -f, --onredirect=<ok|warning|critical|follow>\n\
- How to handle redirected pages\n%s%s\
--m, --min=INTEGER\n\
- Minimum page size required (bytes)\n\
- -v, --verbose\n\
- Show details for command-line debugging (do not use with nagios server)\n\
- -h, --help\n\
- Print detailed help screen\n\
- -V, --version\n\
- Print version information\n"
+******************************************************************************/
+/* splint -I. -I../../plugins -I../../lib/ -I/usr/kerberos/include/ ../../plugins/check_http.c */
-#ifdef HAVE_SSL
-#define SSLOPTIONS "\
- -S, --ssl\n\
- Connect via SSL\n\
- -C, --certificate=INTEGER\n\
- Minimum number of days a certificate has to be valid.\n\
- (when this option is used the url is not checked.)\n"
-#else
-#define SSLOPTIONS ""
-#endif
-
-#ifdef HAVE_REGEX_H
-#define REGOPTIONS "\
- -l, --linespan\n\
- Allow regex to span newlines (must precede -r or -R)\n\
- -r, --regex, --ereg=STRING\n\
- Search page for regex STRING\n\
- -R, --eregi=STRING\n\
- Search page for case-insensitive regex STRING\n"
-#else
-#define REGOPTIONS ""
-#endif
+const char *progname = "check_http";
+const char *revision = "$Revision$";
+const char *copyright = "1999-2001";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
-#define DESCRIPTION "\
-This plugin will attempt to open an HTTP connection with the host. Successul\n\
-connects return STATE_OK, refusals and timeouts return STATE_CRITICAL, other\n\
-errors return STATE_UNKNOWN. Successful connects, but incorrect reponse\n\
-messages from the host result in STATE_WARNING return values. If you are\n\
-checking a virtual server that uses \"host headers\" you must supply the FQDN\n\
-\(fully qualified domain name) as the [host_name] argument.\n"
+#include "common.h"
+#include "netutils.h"
+#include "utils.h"
-#define SSLDESCRIPTION "\
-This plugin can also check whether an SSL enabled web server is able to\n\
-serve content (optionally within a specified time) or whether the X509 \n\
-certificate is still valid for the specified number of days.\n\n\
-CHECK CONTENT: check_http -w 5 -c 10 --ssl www.verisign.com\n\n\
-When the 'www.verisign.com' server returns its content within 5 seconds, a\n\
-STATE_OK will be returned. When the server returns its content but exceeds\n\
-the 5-second threshold, a STATE_WARNING will be returned. When an error occurs,\n\
-a STATE_CRITICAL will be returned.\n\n\
-CHECK CERTIFICATE: check_http www.verisign.com -C 14\n\n\
-When the certificate of 'www.verisign.com' is valid for more than 14 days, a\n\
-STATE_OK is returned. When the certificate is still valid, but for less than\n\
-14 days, a STATE_WARNING is returned. A STATE_CRITICAL will be returned when\n\
-the certificate is expired.\n"
+#define HTTP_EXPECT "HTTP/1."
+enum {
+ MAX_IPV4_HOSTLENGTH = 255,
+ HTTP_PORT = 80,
+ HTTPS_PORT = 443
+};
#ifdef HAVE_SSL_H
#include <rsa.h>
#include <ssl.h>
#include <err.h>
#include <rand.h>
-#endif
-
-#ifdef HAVE_OPENSSL_SSL_H
-#include <openssl/rsa.h>
-#include <openssl/crypto.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/ssl.h>
-#include <openssl/err.h>
-#include <openssl/rand.h>
+#else
+# ifdef HAVE_OPENSSL_SSL_H
+# include <openssl/rsa.h>
+# include <openssl/crypto.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
+# include <openssl/ssl.h>
+# include <openssl/err.h>
+# include <openssl/rand.h>
+# endif
#endif
#ifdef HAVE_SSL
int check_cert = FALSE;
int days_till_exp;
-char *randbuff = "";
+char *randbuff;
SSL_CTX *ctx;
SSL *ssl;
X509 *server_cert;
struct timeval tv;
-#define server_type_check(server_type) \
-(strcmp (server_type, "https") ? FALSE : TRUE)
-
-#define server_port_check(use_ssl) (use_ssl ? HTTPS_PORT : HTTP_PORT)
-
-#define HDR_LOCATION "%*[Ll]%*[Oo]%*[Cc]%*[Aa]%*[Tt]%*[Ii]%*[Oo]%*[Nn]: "
-#define URI_HTTP "%[HTPShtps]://"
-#define URI_HOST "%[a-zA-Z0-9.-]"
-#define URI_PORT ":%[0-9]"
-#define URI_PATH "%[/a-zA-Z0-9._-=@,]"
-
-enum {
- MAX_IPV4_HOSTLENGTH = 64,
- HTTP_PORT = 80,
- HTTPS_PORT = 443
-};
-
-#define HTTP_EXPECT "HTTP/1."
#define HTTP_URL "/"
#define CRLF "\r\n"
int server_port = HTTP_PORT;
char server_port_text[6] = "";
char server_type[6] = "http";
-char *server_address = "";
-char *host_name = "";
-char *server_url = "";
+char *server_address;
+char *host_name;
+char *server_url;
+char *user_agent;
int server_url_length;
int server_expect_yn = 0;
char server_expect[MAX_INPUT_BUFFER] = HTTP_EXPECT;
int verbose = FALSE;
int sd;
int min_page_len = 0;
-char *http_method = "GET";
-char *http_post_data = "";
+int redir_depth = 0;
+int max_depth = 15;
+char *http_method;
+char *http_post_data;
char buffer[MAX_INPUT_BUFFER];
-void print_usage (void);
-void print_help (void);
int process_arguments (int, char **);
-static char *base64 (char *bin, int len);
+static char *base64 (const char *bin, size_t len);
int check_http (void);
+void redir (char *pos, char *status_line);
+int server_type_check(const char *type);
+int server_port_check(int ssl_flag);
+char *perfd_time (long microsec);
+char *perfd_size (int page_len);
int my_recv (void);
int my_close (void);
+void print_help (void);
+void print_usage (void);
int
main (int argc, char **argv)
int result = STATE_UNKNOWN;
/* Set default URL. Must be malloced for subsequent realloc if --onredirect=follow */
- asprintf (&server_url, "%s", HTTP_URL);
+ server_url = strdup(HTTP_URL);
server_url_length = strlen(server_url);
+ asprintf (&user_agent, "User-Agent: check_http/%s (nagios-plugins %s)",
+ clean_revstring (revision), VERSION);
if (process_arguments (argc, argv) == ERROR)
- usage ("check_http: could not parse arguments\n");
+ usage (_("check_http: could not parse arguments\n"));
if (strstr (timestamp, ":")) {
if (strstr (server_url, "?"))
#ifdef HAVE_SSL
if (use_ssl && check_cert == TRUE) {
if (connect_SSL () != OK)
- terminate (STATE_CRITICAL,
- "HTTP CRITICAL - Could not make SSL connection\n");
+ die (STATE_CRITICAL, _("HTTP CRITICAL - Could not make SSL connection\n"));
if ((server_cert = SSL_get_peer_certificate (ssl)) != NULL) {
result = check_certificate (&server_cert);
X509_free (server_cert);
}
else {
- printf ("ERROR: Cannot retrieve server certificate.\n");
+ printf (_("ERROR: Cannot retrieve server certificate.\n"));
result = STATE_CRITICAL;
}
SSL_shutdown (ssl);
{
int c = 1;
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
STD_LONG_OPTS,
{"file",required_argument,0,'F'},
{"link", no_argument, 0, 'L'},
{"onredirect", required_argument, 0, 'f'},
{"certificate", required_argument, 0, 'C'},
{"min", required_argument, 0, 'm'},
+ {"use-ipv4", no_argument, 0, '4'},
+ {"use-ipv6", no_argument, 0, '6'},
{0, 0, 0, 0}
};
}
while (1) {
- c = getopt_long (argc, argv, "Vvht:c:w:H:P:I:a:e:p:s:R:r:u:f:C:nlLSm:", long_options, &option_index);
+ c = getopt_long (argc, argv, "Vvh46t:c:w:H:P:I:a:e:p:s:R:r:u:f:C:nlLSm:", longopts, &option);
if (c == -1 || c == EOF)
break;
switch (c) {
case '?': /* usage */
- usage2 ("unknown argument", optarg);
+ usage3 (_("unknown argument"), optopt);
break;
case 'h': /* help */
print_help ();
exit (STATE_OK);
break;
case 'V': /* version */
- print_revision (progname, REVISION);
+ print_revision (progname, revision);
exit (STATE_OK);
break;
case 't': /* timeout period */
if (!is_intnonneg (optarg))
- usage2 ("timeout interval must be a non-negative integer", optarg);
- socket_timeout = atoi (optarg);
+ usage2 (_("timeout interval must be a non-negative integer"), optarg);
+ else
+ socket_timeout = atoi (optarg);
break;
case 'c': /* critical time threshold */
if (!is_intnonneg (optarg))
- usage2 ("invalid critical threshold", optarg);
- critical_time = strtod (optarg, NULL);
- check_critical_time = TRUE;
+ usage2 (_("invalid critical threshold"), optarg);
+ else {
+ critical_time = strtod (optarg, NULL);
+ check_critical_time = TRUE;
+ }
break;
case 'w': /* warning time threshold */
if (!is_intnonneg (optarg))
- usage2 ("invalid warning threshold", optarg);
- warning_time = strtod (optarg, NULL);
- check_warning_time = TRUE;
+ usage2 (_("invalid warning threshold"), optarg);
+ else {
+ warning_time = strtod (optarg, NULL);
+ check_warning_time = TRUE;
+ }
break;
case 'L': /* show html link */
display_html = TRUE;
break;
case 'S': /* use SSL */
#ifndef HAVE_SSL
- usage ("check_http: invalid option - SSL is not available\n");
+ usage (_("check_http: invalid option - SSL is not available\n"));
#endif
use_ssl = TRUE;
if (specify_port == FALSE)
case 'C': /* Check SSL cert validity */
#ifdef HAVE_SSL
if (!is_intnonneg (optarg))
- usage2 ("invalid certificate expiration period", optarg);
- days_till_exp = atoi (optarg);
- check_cert = TRUE;
+ usage2 (_("invalid certificate expiration period"), optarg);
+ else {
+ days_till_exp = atoi (optarg);
+ check_cert = TRUE;
+ }
#else
- usage ("check_http: invalid option - SSL is not available\n");
+ usage (_("check_http: invalid option - SSL is not available\n"));
#endif
break;
case 'f': /* onredirect */
if (!strcmp (optarg, "critical"))
onredirect = STATE_CRITICAL;
if (verbose)
- printf("option f:%d \n", onredirect);
+ 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) */
- asprintf (&host_name, "%s", optarg);
+ host_name = strdup (optarg);
break;
case 'I': /* Server IP-address */
- asprintf (&server_address, "%s", optarg);
+ server_address = strdup (optarg);
break;
- case 'u': /* Host or server */
- asprintf (&server_url, "%s", optarg);
+ case 'u': /* URL path */
+ server_url = strdup (optarg);
server_url_length = strlen (server_url);
break;
- case 'p': /* Host or server */
+ case 'p': /* Server port */
if (!is_intnonneg (optarg))
- usage2 ("invalid port number", optarg);
- server_port = atoi (optarg);
- specify_port = TRUE;
+ usage2 (_("invalid port number"), optarg);
+ else {
+ server_port = atoi (optarg);
+ specify_port = TRUE;
+ }
break;
case 'a': /* authorization info */
strncpy (user_auth, optarg, MAX_INPUT_BUFFER - 1);
user_auth[MAX_INPUT_BUFFER - 1] = 0;
break;
case 'P': /* HTTP POST data in URL encoded format */
- asprintf (&http_method, "%s", "POST");
- asprintf (&http_post_data, "%s", optarg);
+ if (http_method || http_post_data) break;
+ http_method = strdup("POST");
+ http_post_data = strdup (optarg);
break;
case 's': /* string or substring */
strncpy (string_expect, optarg, MAX_INPUT_BUFFER - 1);
case 'l': /* linespan */
case 'r': /* linespan */
case 'R': /* linespan */
- usage ("check_http: call for regex which was not a compiled option\n");
+ usage (_("check_http: call for regex which was not a compiled option\n"));
break;
#else
case 'l': /* linespan */
errcode = regcomp (&preg, regexp, cflags);
if (errcode != 0) {
(void) regerror (errcode, &preg, errbuf, MAX_INPUT_BUFFER);
- printf ("Could Not Compile Regular Expression: %s", errbuf);
+ printf (_("Could Not Compile Regular Expression: %s"), errbuf);
return ERROR;
}
break;
#endif
+ case '4':
+ address_family = AF_INET;
+ break;
+ case '6':
+#ifdef USE_IPV6
+ address_family = AF_INET6;
+#else
+ usage (_("IPv6 support not available\n"));
+#endif
+ break;
case 'v': /* verbose */
verbose = TRUE;
break;
c = optind;
- if (strcmp (server_address, "") == 0 && c < argc)
- asprintf (&server_address, "%s", argv[c++]);
+ if (server_address == NULL && c < argc)
+ server_address = strdup (argv[c++]);
- if (strcmp (host_name, "") == 0 && c < argc)
- asprintf (&host_name, "%s", argv[c++]);
+ if (host_name == NULL && c < argc)
+ host_name = strdup (argv[c++]);
- if (strcmp (server_address ,"") == 0) {
- if (strcmp (host_name, "") == 0)
- usage ("check_http: you must specify a server address or host name\n");
+ if (server_address == NULL) {
+ if (host_name == NULL)
+ usage (_("check_http: you must specify a server address or host name\n"));
else
- asprintf (&server_address, "%s", host_name);
+ server_address = strdup (host_name);
}
+ if (check_critical_time && critical_time>(double)socket_timeout)
+ socket_timeout = (int)critical_time + 1;
+
+ if (http_method == NULL)
+ http_method = strdup ("GET");
+
return TRUE;
}
\f
/* written by lauri alanko */
static char *
-base64 (char *bin, int len)
+base64 (const char *bin, size_t len)
{
char *buf = (char *) malloc ((len + 2) / 3 * 4 + 1);
- int i = 0, j = 0;
+ size_t i = 0, j = 0;
char BASE64_END = '=';
- char base64_table[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ char base64_table[64];
+ strncpy (base64_table, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", 64);
while (j < len - 2) {
buf[i++] = base64_table[bin[j] >> 2];
\f
+
+
int
check_http (void)
{
- char *msg = NULL;
- char *status_line = "";
- char *header = NULL;
- char *page = "";
- char *auth = NULL;
+ char *msg;
+ char *status_line;
+ char *status_code;
+ char *header;
+ char *page;
+ char *auth;
+ int http_status;
int i = 0;
size_t pagesize = 0;
- char *full_page = "";
- char *buf = NULL;
- char *pos = "";
- char *x = NULL;
- char *orig_url = NULL;
+ char *full_page;
+ char *buf;
+ char *pos;
+ long microsec;
double elapsed_time;
int page_len = 0;
#ifdef HAVE_SSL
if (use_ssl == TRUE) {
if (connect_SSL () != OK) {
- terminate (STATE_CRITICAL, "Unable to open TCP socket");
+ die (STATE_CRITICAL, _("Unable to open TCP socket\n"));
}
if ((server_cert = SSL_get_peer_certificate (ssl)) != NULL) {
X509_free (server_cert);
}
else {
- printf ("ERROR: Cannot retrieve server certificate.\n");
+ printf (_("ERROR: Cannot retrieve server certificate.\n"));
return STATE_CRITICAL;
}
else {
#endif
if (my_tcp_connect (server_address, server_port, &sd) != STATE_OK)
- terminate (STATE_CRITICAL, "Unable to open TCP socket");
+ die (STATE_CRITICAL, _("Unable to open TCP socket\n"));
#ifdef HAVE_SSL
}
#endif
- asprintf (&buf, "%s %s HTTP/1.0\r\n", http_method, server_url);
+ asprintf (&buf, "%s %s HTTP/1.0\r\n%s\r\n", http_method, server_url, user_agent);
- /* optionally send the host header info (not clear if it's usable) */
- if (strcmp (host_name, ""))
+ /* optionally send the host header info */
+ if (host_name)
asprintf (&buf, "%sHost: %s\r\n", buf, host_name);
- /* send user agent */
- asprintf (&buf, "%sUser-Agent: check_http/%s (nagios-plugins %s)\r\n",
- buf, clean_revstring (REVISION), PACKAGE_VERSION);
-
/* optionally send the authentication info */
- if (strcmp (user_auth, "")) {
+ if (strlen(user_auth)) {
auth = base64 (user_auth, strlen (user_auth));
asprintf (&buf, "%sAuthorization: Basic %s\r\n", buf, auth);
}
/* either send http POST data */
- if (strlen (http_post_data)) {
+ if (http_post_data) {
asprintf (&buf, "%sContent-Type: application/x-www-form-urlencoded\r\n", buf);
asprintf (&buf, "%sContent-Length: %i\r\n\r\n", buf, strlen (http_post_data));
asprintf (&buf, "%s%s%s", buf, http_post_data, CRLF);
asprintf (&buf, "%s%s", buf, CRLF);
}
+ if (verbose)
+ printf ("%s\n", buf);
+
#ifdef HAVE_SSL
if (use_ssl == TRUE) {
- if (SSL_write (ssl, buf, strlen (buf)) == -1) {
+ if (SSL_write (ssl, buf, (int)strlen(buf)) == -1) {
ERR_print_errors_fp (stderr);
return STATE_CRITICAL;
}
#endif
/* fetch the page */
+ full_page = strdup("");
while ((i = my_recv ()) > 0) {
buffer[i] = '\0';
asprintf (&full_page, "%s%s", full_page, buffer);
pagesize += i;
}
- if (i < 0) {
+ if (i < 0 && errno != ECONNRESET) {
+#ifdef HAVE_SSL
+ if (use_ssl) {
+ sslerr=SSL_get_error(ssl, i);
+ if ( sslerr == SSL_ERROR_SSL ) {
+ die (STATE_WARNING, _("Client Certificate Required\n"));
+ } else {
+ die (STATE_CRITICAL, _("Error in recv()\n"));
+ }
+ }
+ else {
+#endif
+ die (STATE_CRITICAL, _("Error in recv()\n"));
#ifdef HAVE_SSL
- sslerr=SSL_get_error(ssl, i);
- if ( sslerr == SSL_ERROR_SSL ) {
- terminate (STATE_WARNING, "Client Certificate Required\n");
- } else {
- terminate (STATE_CRITICAL, "Error in recv()");
}
-#else
- terminate (STATE_CRITICAL, "Error in recv()");
#endif
}
/* return a CRITICAL status if we couldn't read any data */
if (pagesize == (size_t) 0)
- terminate (STATE_CRITICAL, "No data received %s", timestamp);
+ die (STATE_CRITICAL, _("No data received %s\n"), timestamp);
/* close the connection */
my_close ();
page = full_page;
if (verbose)
- printf ("Page is %d characters\n", pagesize);
+ printf ("%s://%s:%d%s is %d characters\n", server_type, server_address, server_port, server_url, pagesize);
/* find status line and null-terminate it */
status_line = page;
if (verbose)
printf ("STATUS: %s\n", status_line);
- /* find header info and null terminate it */
+ /* find header info and null-terminate it */
header = page;
while (strcspn (page, "\r\n") > 0) {
page += (size_t) strcspn (page, "\r\n");
/* make sure the status line matches the response we are looking for */
if (!strstr (status_line, server_expect)) {
if (server_port == HTTP_PORT)
- asprintf (&msg, "Invalid HTTP response received from host\n");
+ asprintf (&msg,
+ _("Invalid HTTP response received from host\n"));
else
asprintf (&msg,
- "Invalid HTTP response received from host on port %d\n",
- server_port);
- terminate (STATE_CRITICAL, msg);
+ _("Invalid HTTP response received from host on port %d\n"),
+ server_port);
+ die (STATE_CRITICAL, "%s", msg);
}
-
/* Exit here if server_expect was set by user and not default */
if ( server_expect_yn ) {
- asprintf (&msg, "HTTP OK: Status line output matched \"%s\"\n",
- server_expect);
+ asprintf (&msg,
+ _("HTTP OK: Status line output matched \"%s\"\n"),
+ server_expect);
if (verbose)
printf ("%s\n",msg);
-
}
else {
-
+ /* Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF */
+ /* HTTP-Version = "HTTP" "/" 1*DIGIT "." 1*DIGIT */
+ /* Status-Code = 3 DIGITS */
+
+ status_code = strchr (status_line, ' ') + sizeof (char);
+ if (strspn (status_code, "1234567890") != 3)
+ die (STATE_CRITICAL, _("HTTP CRITICAL: Invalid Status Line (%s)\n"), status_line);
+
+ http_status = atoi (status_code);
/* check the return code */
+
+ if (http_status >= 600 || http_status < 100)
+ die (STATE_CRITICAL, _("HTTP CRITICAL: Invalid Status (%s)\n"), status_line);
+
/* server errors result in a critical state */
- if (strstr (status_line, "500") ||
- strstr (status_line, "501") ||
- strstr (status_line, "502") ||
- strstr (status_line, "503")) {
- terminate (STATE_CRITICAL, "HTTP CRITICAL: %s\n", status_line);
- }
+ else if (http_status >= 500)
+ die (STATE_CRITICAL, _("HTTP CRITICAL: %s\n"), status_line);
/* 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")) {
- terminate (STATE_WARNING, "HTTP WARNING: %s\n", status_line);
- }
+ else if (http_status >= 400)
+ die (STATE_WARNING, _("HTTP WARNING: %s\n"), status_line);
/* 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) {
-
- asprintf (&orig_url, "%s", server_url);
- 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 (strcspn (pos, "\r\n") > server_url_length) {
- server_url = realloc (server_url, strcspn (pos, "\r\n"));
- if (server_url == NULL)
- terminate (STATE_UNKNOWN,
- "HTTP UNKNOWN: could not allocate server_url");
- server_url_length = strcspn (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) {
- asprintf (&host_name, "%s", 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 ) {
- asprintf (&host_name, "%s", 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) {
- asprintf (&host_name, "%s", 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) {
- asprintf (&host_name, "%s", 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) {
- if ((server_url[0] != '/') && (x = strrchr(orig_url, '/'))) {
- *x = '\0';
- asprintf (&server_url, "%s/%s", orig_url, server_url);
- }
- 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 (http_status >= 300) {
+
+ if (onredirect == STATE_DEPENDENT)
+ redir (header, status_line);
else if (onredirect == STATE_UNKNOWN)
- printf ("HTTP UNKNOWN");
+ printf (_("UNKNOWN"));
else if (onredirect == STATE_OK)
- printf ("HTTP ok");
+ printf (_("OK"));
else if (onredirect == STATE_WARNING)
- printf ("HTTP WARNING");
+ printf (_("WARNING"));
else if (onredirect == STATE_CRITICAL)
- printf ("HTTP CRITICAL");
- elapsed_time = delta_time (tv);
- asprintf (&msg, ": %s - %7.3f second response time %s%s|time=%7.3f\n",
- status_line, elapsed_time, timestamp,
- (display_html ? "</A>" : ""), elapsed_time);
- terminate (onredirect, msg);
- } /* end if (strstr (status_line, "30[0-4]") */
-
+ printf (_("CRITICAL"));
+ microsec = deltime (tv);
+ elapsed_time = (double)microsec / 1.0e6;
+ die (onredirect,
+ _(" - %s - %.3f second response time %s%s|%s %s\n"),
+ status_line, elapsed_time, timestamp,
+ (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (pagesize));
+ } /* end if (http_status >= 300) */
} /* end else (server_expect_yn) */
-
/* check elapsed time */
- elapsed_time = delta_time (tv);
- asprintf (&msg, "HTTP problem: %s - %7.3f second response time %s%s|time=%7.3f\n",
- status_line, elapsed_time, timestamp,
- (display_html ? "</A>" : ""), elapsed_time);
+ microsec = deltime (tv);
+ elapsed_time = (double)microsec / 1.0e6;
+ asprintf (&msg,
+ _("HTTP problem: %s - %.3f second response time %s%s|%s %s\n"),
+ status_line, elapsed_time, timestamp,
+ (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (pagesize));
if (check_critical_time == TRUE && elapsed_time > critical_time)
- terminate (STATE_CRITICAL, msg);
+ die (STATE_CRITICAL, "%s", msg);
if (check_warning_time == TRUE && elapsed_time > warning_time)
- terminate (STATE_WARNING, msg);
+ die (STATE_WARNING, "%s", msg);
/* Page and Header content checks go here */
/* these checks should be last */
if (strlen (string_expect)) {
if (strstr (page, string_expect)) {
- printf ("HTTP ok: %s - %7.3f second response time %s%s|time=%7.3f\n",
+ printf (_("HTTP OK %s - %.3f second response time %s%s|%s %s\n"),
status_line, elapsed_time,
- timestamp, (display_html ? "</A>" : ""), elapsed_time);
+ timestamp, (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (pagesize));
exit (STATE_OK);
}
else {
- printf ("HTTP CRITICAL: string not found%s|time=%7.3f\n",
- (display_html ? "</A>" : ""), elapsed_time);
+ printf (_("CRITICAL - string not found%s|%s %s\n"),
+ (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (pagesize));
exit (STATE_CRITICAL);
}
}
if (strlen (regexp)) {
errcode = regexec (&preg, page, REGS, pmatch, 0);
if (errcode == 0) {
- printf ("HTTP ok: %s - %7.3f second response time %s%s|time=%7.3f\n",
+ printf (_("HTTP OK %s - %.3f second response time %s%s|%s %s\n"),
status_line, elapsed_time,
- timestamp, (display_html ? "</A>" : ""), elapsed_time);
+ timestamp, (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (pagesize));
exit (STATE_OK);
}
else {
if (errcode == REG_NOMATCH) {
- printf ("HTTP CRITICAL: pattern not found%s|time=%7.3f\n",
- (display_html ? "</A>" : ""), elapsed_time);
+ printf (_("CRITICAL - pattern not found%s|%s %s\n"),
+ (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (pagesize));
exit (STATE_CRITICAL);
}
else {
regerror (errcode, &preg, errbuf, MAX_INPUT_BUFFER);
- printf ("Execute Error: %s\n", errbuf);
+ printf (_("CRITICAL - Execute Error: %s\n"), errbuf);
exit (STATE_CRITICAL);
}
}
/* make sure the page is of an appropriate size */
page_len = strlen (page);
if ((min_page_len > 0) && (page_len < min_page_len)) {
- printf ("HTTP WARNING: page size too small%s|size=%i\n",
- (display_html ? "</A>" : ""), page_len );
+ printf (_("HTTP WARNING: page size %d too small%s|%s\n"),
+ page_len, (display_html ? "</A>" : ""), perfd_size (page_len) );
exit (STATE_WARNING);
}
/* We only get here if all tests have been passed */
- asprintf (&msg, "HTTP ok: %s - %7.3f second response time %s%s|time=%7.3f\n",
- status_line, (float)elapsed_time,
- timestamp, (display_html ? "</A>" : ""), elapsed_time);
- terminate (STATE_OK, msg);
+ asprintf (&msg, _("HTTP OK %s - %d bytes in %.3f seconds %s%s|%s %s\n"),
+ status_line, page_len, elapsed_time,
+ timestamp, (display_html ? "</A>" : ""),
+ perfd_time (microsec), perfd_size (page_len));
+ die (STATE_OK, "%s", msg);
return STATE_UNKNOWN;
}
+
+/* per RFC 2396 */
+#define HDR_LOCATION "%*[Ll]%*[Oo]%*[Cc]%*[Aa]%*[Tt]%*[Ii]%*[Oo]%*[Nn]: "
+#define URI_HTTP "%[HTPShtps]://"
+#define URI_HOST "%[-.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]"
+#define URI_PORT ":%[0123456789]"
+#define URI_PATH "%[-_.!~*'();/?:@&=+$,%#abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]"
+#define HD1 URI_HTTP URI_HOST URI_PORT URI_PATH
+#define HD2 URI_HTTP URI_HOST URI_PATH
+#define HD3 URI_HTTP URI_HOST URI_PORT
+#define HD4 URI_HTTP URI_HOST
+#define HD5 URI_PATH
+
+void
+redir (char *pos, char *status_line)
+{
+ int i = 0;
+ char *x;
+ char xx[2];
+ char type[6];
+ char *addr;
+ char port[6];
+ char *url;
+
+ addr = malloc (MAX_IPV4_HOSTLENGTH + 1);
+ if (addr == NULL)
+ die (STATE_UNKNOWN, _("ERROR: could not allocate addr\n"));
+
+ url = malloc (strcspn (pos, "\r\n"));
+ if (url == NULL)
+ die (STATE_UNKNOWN, _("ERROR: could not allocate url\n"));
+
+ while (pos) {
+
+ if (sscanf (pos, "%[Ll]%*[Oo]%*[Cc]%*[Aa]%*[Tt]%*[Ii]%*[Oo]%*[Nn]:%n", xx, &i) < 1) {
+
+ pos += (size_t) strcspn (pos, "\r\n");
+ pos += (size_t) strspn (pos, "\r\n");
+ if (strlen(pos) == 0)
+ die (STATE_UNKNOWN,
+ _("UNKNOWN - Could not find redirect location - %s%s\n"),
+ status_line, (display_html ? "</A>" : ""));
+ continue;
+ }
+
+ pos += i;
+ pos += strspn (pos, " \t\r\n");
+
+ url = realloc (url, strcspn (pos, "\r\n"));
+ if (url == NULL)
+ die (STATE_UNKNOWN, _("ERROR: could not allocate url\n"));
+
+ /* URI_HTTP, URI_HOST, URI_PORT, URI_PATH */
+ if (sscanf (pos, HD1, type, addr, port, url) == 4) {
+ use_ssl = server_type_check (type);
+ i = atoi (port);
+ }
+
+ /* URI_HTTP URI_HOST URI_PATH */
+ else if (sscanf (pos, HD2, type, addr, url) == 3 ) {
+ use_ssl = server_type_check (type);
+ i = server_port_check (use_ssl);
+ }
+
+ /* URI_HTTP URI_HOST URI_PORT */
+ else if(sscanf (pos, HD3, type, addr, port) == 3) {
+ strcpy (url, HTTP_URL);
+ use_ssl = server_type_check (type);
+ i = atoi (port);
+ }
+
+ /* URI_HTTP URI_HOST */
+ else if(sscanf (pos, HD4, type, addr) == 2) {
+ strcpy (url, HTTP_URL);
+ use_ssl = server_type_check (type);
+ i = server_port_check (use_ssl);
+ }
+
+ /* URI_PATH */
+ else if (sscanf (pos, HD5, url) == 1) {
+ /* relative url */
+ if ((url[0] != '/')) {
+ if ((x = strrchr(url, '/')))
+ *x = '\0';
+ asprintf (&server_url, "%s/%s", server_url, url);
+ }
+ i = server_port;
+ strcpy (type, server_type);
+ strcpy (addr, host_name);
+ }
+
+ else {
+ die (STATE_UNKNOWN,
+ _("UNKNOWN - Could not parse redirect location - %s%s\n"),
+ pos, (display_html ? "</A>" : ""));
+ }
+
+ break;
+
+ } /* end while (pos) */
+
+ if (++redir_depth > max_depth)
+ die (STATE_WARNING,
+ _("WARNING - maximum redirection depth %d exceeded - %s://%s:%d%s%s\n"),
+ max_depth, type, addr, i, url, (display_html ? "</A>" : ""));
+
+ if (server_port==i &&
+ !strcmp(server_address, addr) &&
+ (host_name && !strcmp(host_name, addr)) &&
+ !strcmp(server_url, url))
+ die (STATE_WARNING,
+ _("WARNING - redirection creates an infinite loop - %s://%s:%d%s%s\n"),
+ type, addr, i, url, (display_html ? "</A>" : ""));
+
+ server_port = i;
+ strcpy (server_type, type);
+
+ free (host_name);
+ host_name = strdup (addr);
+
+ free (server_address);
+ server_address = strdup (addr);
+
+ free (server_url);
+ server_url = strdup (url);
+
+ check_http ();
+}
+
+
+
+int
+server_type_check (const char *type)
+{
+ if (strcmp (type, "https"))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+int
+server_port_check (int ssl_flag)
+{
+ if (ssl_flag)
+ return HTTPS_PORT;
+ else
+ return HTTP_PORT;
+}
+
+
+
#ifdef HAVE_SSL
int connect_SSL (void)
{
SSL_METHOD *meth;
asprintf (&randbuff, "%s", "qwertyuiopasdfghjklqwertyuiopasdfghjkl");
- RAND_seed (randbuff, strlen (randbuff));
+ RAND_seed (randbuff, (int)strlen(randbuff));
if (verbose)
- printf("SSL seeding: %s\n", (RAND_status()==1 ? "OK" : "Failed") );
+ printf(_("SSL seeding: %s\n"), (RAND_status()==1 ? _("OK") : _("Failed")) );
/* Initialize SSL context */
SSLeay_add_ssl_algorithms ();
meth = SSLv23_client_method ();
SSL_load_error_strings ();
if ((ctx = SSL_CTX_new (meth)) == NULL) {
- printf ("ERROR: Cannot create SSL context.\n");
+ printf (_("CRITICAL - Cannot create SSL context.\n"));
return STATE_CRITICAL;
}
ERR_print_errors_fp (stderr);
}
else {
- printf ("ERROR: Cannot initiate SSL handshake.\n");
+ printf (_("CRITICAL - Cannot initiate SSL handshake.\n"));
}
SSL_free (ssl);
}
/* Generate tm structure to process timestamp */
if (tm->type == V_ASN1_UTCTIME) {
if (tm->length < 10) {
- printf ("ERROR: Wrong time format in certificate.\n");
+ printf (_("CRITICAL - Wrong time format in certificate.\n"));
return STATE_CRITICAL;
}
else {
}
else {
if (tm->length < 12) {
- printf ("ERROR: Wrong time format in certificate.\n");
+ printf (_("CRITICAL - Wrong time format in certificate.\n"));
return STATE_CRITICAL;
}
else {
days_left = (mktime (&stamp) - time (NULL)) / 86400;
snprintf
- (timestamp, 16, "%02d/%02d/%04d %02d:%02d",
+ (timestamp, 17, "%02d/%02d/%04d %02d:%02d",
stamp.tm_mon + 1,
stamp.tm_mday, stamp.tm_year + 1900, stamp.tm_hour, stamp.tm_min);
if (days_left > 0 && days_left <= days_till_exp) {
- printf ("Certificate expires in %d day(s) (%s).\n", days_left, timestamp);
+ printf (_("WARNING - Certificate expires in %d day(s) (%s).\n"), days_left, timestamp);
return STATE_WARNING;
}
if (days_left < 0) {
- printf ("Certificate expired on %s.\n", timestamp);
+ printf (_("CRITICAL - Certificate expired on %s.\n"), timestamp);
return STATE_CRITICAL;
}
if (days_left == 0) {
- printf ("Certificate expires today (%s).\n", timestamp);
+ printf (_("WARNING - Certificate expires today (%s).\n"), timestamp);
return STATE_WARNING;
}
- printf ("Certificate will expire on %s.\n", timestamp);
+ printf (_("OK - Certificate will expire on %s.\n"), timestamp);
return STATE_OK;
}
\f
+char *perfd_time (long microsec)
+{
+ return perfdata ("time", microsec, "us",
+ check_warning_time, (int)(1e6*warning_time),
+ check_critical_time, (int)(1e6*critical_time),
+ TRUE, 0, FALSE, 0);
+}
+
+
+char *perfd_size (int page_len)
+{
+ return perfdata ("size", page_len, "B",
+ (min_page_len>0?TRUE:FALSE), min_page_len,
+ (min_page_len>0?TRUE:FALSE), 0,
+ TRUE, 0, FALSE, 0);
+}
+
+
int
my_recv (void)
{
}
#endif
}
-\f
+
+
+
+\f
void
print_help (void)
{
- print_revision (progname, REVISION);
- printf
- ("Copyright (c) %s %s <%s>\n\n%s\n",
- COPYRIGHT, AUTHORS, EMAIL, SUMMARY);
+ print_revision (progname, revision);
+
+ printf (_("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n"));
+ printf (_(COPYRIGHT), copyright, email);
+
+ printf (_("\
+This plugin tests the HTTP service on the specified host. It can test\n\
+normal (http) and secure (https) servers, follow redirects, search for\n\
+strings and regular expressions, check connection times, and report on\n\
+certificate expiration times.\n"));
+
print_usage ();
- printf ("NOTE: One or both of -H and -I must be specified\n");
- printf ("\nOptions:\n" LONGOPTIONS "\n", HTTP_EXPECT, HTTP_PORT,
- DEFAULT_SOCKET_TIMEOUT, SSLOPTIONS, REGOPTIONS);
+
+ printf (_("NOTE: One or both of -H and -I must be specified\n"));
+
+ printf (_(UT_HELP_VRSN));
+
+ printf (_("\
+ -H, --hostname=ADDRESS\n\
+ Host name argument for servers using host headers (virtual host)\n\
+ -I, --IP-address=ADDRESS\n\
+ IP address or name (use numeric address if possible to bypass DNS lookup).\n\
+ -p, --port=INTEGER\n\
+ Port number (default: %d)\n"), HTTP_PORT);
+
+ printf (_(UT_IPv46));
+
#ifdef HAVE_SSL
- printf (SSLDESCRIPTION);
+ printf (_("\
+ -S, --ssl\n\
+ Connect via SSL\n\
+ -C, --certificate=INTEGER\n\
+ Minimum number of days a certificate has to be valid.\n\
+ (when this option is used the url is not checked.)\n"));
+#endif
+
+ printf (_("\
+ -e, --expect=STRING\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\
+ URL to GET or POST (default: /)\n\
+ -P, --post=STRING\n\
+ URL encoded http POST data\n"), HTTP_EXPECT);
+
+#ifdef HAVE_REGEX_H
+ printf (_("\
+ -l, --linespan\n\
+ Allow regex to span newlines (must precede -r or -R)\n\
+ -r, --regex, --ereg=STRING\n\
+ Search page for regex STRING\n\
+ -R, --eregi=STRING\n\
+ Search page for case-insensitive regex STRING\n"));
#endif
+
+ printf (_("\
+ -a, --authorization=AUTH_PAIR\n\
+ Username:password on sites with basic authentication\n\
+ -L, --link=URL\n\
+ Wrap output in HTML link (obsoleted by urlize)\n\
+ -f, --onredirect=<ok|warning|critical|follow>\n\
+ How to handle redirected pages\n\
+ -m, --min=INTEGER\n\
+ Minimum page size required (bytes)\n"));
+
+ printf (_(UT_WARN_CRIT));
+
+ printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
+
+ printf (_(UT_VERBOSE));
+
+ printf (_("\
+This plugin will attempt to open an HTTP connection with the host. Successful\n\
+connects return STATE_OK, refusals and timeouts return STATE_CRITICAL, other\n\
+errors return STATE_UNKNOWN. Successful connects, but incorrect reponse\n\
+messages from the host result in STATE_WARNING return values. If you are\n\
+checking a virtual server that uses 'host headers' you must supply the FQDN\n\
+(fully qualified domain name) as the [host_name] argument.\n"));
+
+#ifdef HAVE_SSL
+ printf (_("\n\
+This plugin can also check whether an SSL enabled web server is able to\n\
+serve content (optionally within a specified time) or whether the X509 \n\
+certificate is still valid for the specified number of days.\n"));
+ printf (_("\n\
+CHECK CONTENT: check_http -w 5 -c 10 --ssl www.verisign.com\n\n\
+When the 'www.verisign.com' server returns its content within 5 seconds, a\n\
+STATE_OK will be returned. When the server returns its content but exceeds\n\
+the 5-second threshold, a STATE_WARNING will be returned. When an error occurs,\n\
+a STATE_CRITICAL will be returned.\n\n"));
+
+ printf (_("\
+CHECK CERTIFICATE: check_http www.verisign.com -C 14\n\n\
+When the certificate of 'www.verisign.com' is valid for more than 14 days, a\n\
+STATE_OK is returned. When the certificate is still valid, but for less than\n\
+14 days, a STATE_WARNING is returned. A STATE_CRITICAL will be returned when\n\
+the certificate is expired.\n"));
+#endif
+
+ printf (_(UT_SUPPORT));
+
}
+
+
void
print_usage (void)
{
- printf ("Usage:\n" " %s %s\n"
- " %s (-h | --help) for detailed help\n"
- " %s (-V | --version) for version information\n",
- progname, OPTIONS, progname, progname);
+ printf (_("\
+Usage: %s (-H <vhost> | -I <IP-address>) [-u <uri>] [-p <port>]\n\
+ [-w <warn time>] [-c <critical time>] [-t <timeout>] [-L]\n\
+ [-a auth] [-f <ok | warn | critcal | follow>] [-e <expect>]\n\
+ [-s string] [-l] [-r <regex> | -R <case-insensitive regex>]\n\
+ [-P string] [-m min_pg_size] [-4|-6]\n"), progname);
+ printf (_(UT_HLP_VRS), progname, progname);
}