check_http: add --onredirect=stickyport - also follow the same port

3 files changed, 52 insertions, 19 deletions

diff --git a/NEWS b/NEWS
index a03877cd..164ef9fa 100644
--- a/NEWS
+++ b/NEWS
@@ -21,6 +21,7 @@ This file documents the major additions and syntax changes between releases.
         Fixed check_mrtg returning UNKNOWN instead of OK (bug #2378068)
         Fixed check_http behaviour: all check are now performed as long as a valid response is returned (sf.net #1460312)
         check_http --onredirect=sticky follows using the same IP address (sf.net #2550208)
+        check_http --onredirect=stickyport also follows the same port
         Fixed coredump from check_nt when invalid drive is specified (#2179754 - Olli Hauer)
         Fixed passing of quotes in OID for check_snmp (#1985230 - Jan Wagner, patch by John Barbuto)
         Fixed check_http sending HTTP/1.0 with v1.1 headers (#2638765)
diff --git a/plugins/check_http.c b/plugins/check_http.c
index 72d0a2b6..5a859f98 100644
--- a/plugins/check_http.c
+++ b/plugins/check_http.c
@@ -44,6 +44,9 @@ const char *email = "nagiosplug-devel@lists.sourceforge.net";
 #include <ctype.h>
 
 #define INPUT_DELIMITER ";"
+#define STICKY_NONE 0
+#define STICKY_HOST 1
+#define STICKY_PORT 2
 
 #define HTTP_EXPECT "HTTP/1."
 enum {
@@ -106,7 +109,7 @@ int display_html = FALSE;
 char **http_opt_headers;
 int http_opt_headers_count = 0;
 int onredirect = STATE_OK;
-int followsticky = 0;
+int followsticky = STICKY_NONE;
 int use_ssl = FALSE;
 int verbose = FALSE;
 int sd;
@@ -300,10 +303,12 @@ process_arguments (int argc, char **argv)
         server_port = HTTPS_PORT;
       break;
     case 'f': /* onredirect */
+      if (!strcmp (optarg, "stickyport"))
+        onredirect = STATE_DEPENDENT, followsticky = STICKY_HOST|STICKY_PORT;
       if (!strcmp (optarg, "sticky"))
-        onredirect = STATE_DEPENDENT, followsticky = 1;
+        onredirect = STATE_DEPENDENT, followsticky = STICKY_HOST;
       if (!strcmp (optarg, "follow"))
-        onredirect = STATE_DEPENDENT, followsticky = 0;
+        onredirect = STATE_DEPENDENT, followsticky = STICKY_NONE;
       if (!strcmp (optarg, "unknown"))
         onredirect = STATE_UNKNOWN;
       if (!strcmp (optarg, "ok"))
@@ -1203,15 +1208,18 @@ redir (char *pos, char *status_line)
   free (host_name);
   host_name = strdup (addr);
 
-  if (followsticky == 0) {
+  if (!(followsticky & STICKY_HOST)) {
     free (server_address);
     server_address = strdup (addr);
   }
+  if (!(followsticky & STICKY_PORT)) {
+    server_port = i;
+  }
 
   free (server_url);
   server_url = url;
 
-  if ((server_port = i) > MAX_PORT)
+  if (server_port > MAX_PORT)
     die (STATE_UNKNOWN,
          _("HTTP UNKNOWN - Redirection to port above %d - %s://%s:%d%s%s\n"),
          MAX_PORT, server_type, server_address, server_port, server_url,
@@ -1343,9 +1351,9 @@ print_help (void)
   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|sticky>");
+  printf (" %s\n", "-f, --onredirect=<ok|warning|critical|follow|sticky|stickyport>");
   printf ("    %s\n", _("How to handle redirected pages. sticky is like follow but stick to the"));
-  printf ("    %s\n", _("specified IP address"));
+  printf ("    %s\n", _("specified IP address. stickyport also ensure post stays the same."));
   printf (" %s\n", "-m, --pagesize=INTEGER<:INTEGER>");
   printf ("    %s\n", _("Minimum page size required (bytes) : Maximum page size required (bytes)"));
 
diff --git a/plugins/tests/check_http.t b/plugins/tests/check_http.t
index b0df960c..88b77d3b 100755
--- a/plugins/tests/check_http.t
+++ b/plugins/tests/check_http.t
@@ -125,11 +125,11 @@ sub run_server {
                         } elsif ($r->url->path eq "/redirect") {
                                 $c->send_redirect( "/redirect2" );
                         } elsif ($r->url->path eq "/redir_external") {
-                                $c->send_redirect( "http://169.254.169.254/redirect2" );
+                                $c->send_redirect(($d->isa('HTTP::Daemon::SSL') ? "https" : "http") . "://169.254.169.254/redirect2" );
                         } elsif ($r->url->path eq "/redirect2") {
                                 $c->send_basic_header;
                                 $c->send_crlf;
-                                $c->send_response("redirected");
+                                $c->send_response(HTTP::Response->new( 200, 'OK', undef, 'redirected' ));
                         } elsif ($r->url->path eq "/redir_timeout") {
                                 $c->send_redirect( "/timeout" );
                         } elsif ($r->url->path eq "/timeout") {
@@ -157,7 +157,7 @@ if ($ARGV[0] && $ARGV[0] eq "-d") {
         }
 }
 
-my $common_tests = 55;
+my $common_tests = 62;
 my $ssl_only_tests = 6;
 if (-x "./check_http") {
         plan tests => $common_tests * 2 + $ssl_only_tests;
@@ -181,7 +181,6 @@ SKIP: {
         is( $result->return_code, 1, "$command -p $port_https -S -C 14000" );
         like( $result->output, '/WARNING - Certificate expires in \d+ day\(s\) \(03/03/2019 21:41\)./', "output ok" );
 
-
         # Expired cert tests
         $result = NPTest->testCmd( "$command -p $port_https_expired -S -C 7" );
         is( $result->return_code, 2, "$command -p $port_https_expired -S -C 7" );
@@ -316,7 +315,6 @@ sub run_common_tests {
         is( $result->return_code, 0, $cmd);
         like( $result->output, '/^HTTP OK: HTTP/1.1 200 OK - \d+ bytes in [\d\.]+ second/', "Output correct: ".$result->output );
 
-
         $cmd = "$command -u /redirect -k 'follow: me'";
         $result = NPTest->testCmd( $cmd );
         is( $result->return_code, 0, $cmd);
@@ -327,25 +325,50 @@ sub run_common_tests {
         is( $result->return_code, 0, $cmd);
         like( $result->output, '/^HTTP OK: HTTP/1.1 200 OK - \d+ bytes in [\d\.]+ second/', "Output correct: ".$result->output );
 
+        $cmd = "$command -f sticky -u /redirect -k 'follow: me'";
+        $result = NPTest->testCmd( $cmd );
+        is( $result->return_code, 0, $cmd);
+        like( $result->output, '/^HTTP OK: HTTP/1.1 200 OK - \d+ bytes in [\d\.]+ second/', "Output correct: ".$result->output );
+
+        $cmd = "$command -f stickyport -u /redirect -k 'follow: me'";
+        $result = NPTest->testCmd( $cmd );
+        is( $result->return_code, 0, $cmd);
+        like( $result->output, '/^HTTP OK: HTTP/1.1 200 OK - \d+ bytes in [\d\.]+ second/', "Output correct: ".$result->output );
+
   # These tests may block
         print "ALRM\n";
 
-        $cmd = "$command -f sticky -u /redir_external -t 5";
+        # stickyport - on full urlS port is set back to 80 otherwise
+        $cmd = "$command -f stickyport -u /redir_external -t 5 -s redirected";
         eval {
                 local $SIG{ALRM} = sub { die "alarm\n" };
                 alarm(2);
                 $result = NPTest->testCmd( $cmd );
                 alarm(0);       };
-        isnt( $@, "alarm\n", $cmd);
+        isnt( $@, "alarm\n", $cmd );
+        is( $result->return_code, 0, $cmd );
 
-        # Will this one work everywhere???
-        $cmd = "$command -f follow -u /redir_external -t 5";
+        # Let's hope there won't be any web server on :80 returning "redirected"!
+        $cmd = "$command -f sticky -u /redir_external -t 5 -s redirected";
         eval {
                 local $SIG{ALRM} = sub { die "alarm\n" };
                 alarm(2);
                 $result = NPTest->testCmd( $cmd );
                 alarm(0); };
-        is( $@, "alarm\n", $cmd);
+        isnt( $@, "alarm\n", $cmd );
+        isnt( $result->return_code, 0, $cmd );
+
+        # Test an external address - timeout
+        SKIP: {
+                skip "This doesn't seems to work all the time", 1 unless ($ENV{HTTP_EXTERNAL});
+                $cmd = "$command -f follow -u /redir_external -t 5";
+                eval {
+                        local $SIG{ALRM} = sub { die "alarm\n" };
+                        alarm(2);
+                        $result = NPTest->testCmd( $cmd );
+                        alarm(0); };
+                is( $@, "alarm\n", $cmd );
+        }
 
         $cmd = "$command -u /timeout -t 5";
         eval {
@@ -353,7 +376,7 @@ sub run_common_tests {
                 alarm(2);
                 $result = NPTest->testCmd( $cmd );
                 alarm(0); };
-        is( $@, "alarm\n", $cmd);
+        is( $@, "alarm\n", $cmd );
 
         $cmd = "$command -f follow -u /redir_timeout -t 2";
         eval {
@@ -361,6 +384,7 @@ sub run_common_tests {
                 alarm(5);
                 $result = NPTest->testCmd( $cmd );
                 alarm(0); };
-        isnt( $@, "alarm\n", $cmd);
+        isnt( $@, "alarm\n", $cmd );
 
 }
+