[Nagiosplug-devel] [ nagiosplug-Bugs-2550208 ] Patch to check_http redirect behaviour

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Fri Jan 30 21:36:18 CET 2009


Bugs item #2550208, was opened at 2009-01-30 21:36
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Category: General plugin execution
Group: Release (specify)
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jan Wagner (cyco_dd)
Assigned to: Nobody/Anonymous (nobody)
Summary: Patch to check_http redirect behaviour

Initial Comment:
The following Bugreport we got against our debian package:

If told to follow redirects, check_http follows exactly disregarding
any supplied IP address. Of course this might be what you want.

The included patch adds another option to the -f|--on-redirect switch
which will follow but still connect to the same host. It might be
considered a bug that even if an IP address is NOT given, the same host
will be connected to.

--- check_http.c~ 2008-05-07 11:02:42.000000000 +0100
+++ check_http.c  2008-10-17 09:45:38.000000000 +0100
@@ -110,6 +110,7 @@
 char **http_opt_headers;
 int http_opt_headers_count = 0;
 int onredirect = STATE_OK;
+int follow_same_ip = FALSE;
 int use_ssl = FALSE;
 int verbose = FALSE;
 int sd;
@@ -302,6 +303,11 @@
         server_port = HTTPS_PORT;
       break;
     case 'f': /* onredirect */
+      if (!strcmp (optarg, "follow-same-ip"))
+        {
+          onredirect = STATE_DEPENDENT;
+          follow_same_ip = TRUE;
+        }
       if (!strcmp (optarg, "follow"))
         onredirect = STATE_DEPENDENT;
       if (!strcmp (optarg, "unknown"))
@@ -1151,8 +1158,11 @@
   free (host_name);
   host_name = strdup (addr);
 
-  free (server_address);
-  server_address = strdup (addr);
+  if (!follow_same_ip)
+    {
+      free (server_address);
+      server_address = strdup (addr);
+    }
 
   free (server_url);
   if ((url[0] == '/'))
@@ -1169,8 +1179,12 @@
          display_html ? "</A>" : "");
 
   if (verbose)
-    printf (_("Redirection to %s://%s:%d%s\n"), server_type,
-            host_name ? host_name : server_address, server_port, server_url);
+    {
+      printf (_("Redirection to %s://%s:%d%s\n"), server_type,
+            host_name ? host_name : server_address, server_port, server_url);
+      if (!host_name)
+      printf (_("Connecting to %s.\n"), server_address);
+    }
 
   check_http ();
 }
@@ -1292,7 +1306,7 @@
   printf ("    %s\n", _(" Any other tags to be sent in http header. Use multiple times for additional headers"));
   printf (" %s\n", "-L, --link");
   printf ("    %s\n", _("Wrap output in HTML link (obsoleted by urlize)"));
-  printf (" %s\n", "-f, --onredirect=<ok|warning|critical|follow>");
+  printf (" %s\n", "-f, --onredirect=<ok|warning|critical|follow|follow-same-ip>");
   printf ("    %s\n", _("How to handle redirected pages"));
   printf (" %s\n", "-m, --pagesize=INTEGER<:INTEGER>");
   printf ("    %s\n", _("Minimum page size required (bytes) : Maximum page size required (bytes)"));
@@ -1346,7 +1360,7 @@
   printf (_("Usage:"));
   printf (" %s -H <vhost> | -I <IP-address> [-u <uri>] [-p <port>]\n",progname);
   printf ("       [-w <warn time>] [-c <critical time>] [-t <timeout>] [-L]\n");
-  printf ("       [-a auth] [-f <ok | warn | critcal | follow>] [-e <expect>]\n");
+  printf ("       [-a auth] [-f <ok | warn | critcal | follow | follow-same-ip>] [-e <expect>]\n");
   printf ("       [-s string] [-l] [-r <regex> | -R <case-insensitive regex>] [-P string]\n");
   printf ("       [-m <min_pg_size>:<max_pg_size>] [-4|-6] [-N] [-M <age>] [-A string]\n");
   printf ("       [-k string] [-S] [-C <age>] [-T <content-type>]\n");

You can track the bugreport via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=502529


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