check_curl: fix relative redirects on non-standard port

Having a webserver respond with a relative redirect as for ex. in `Location: /path/to.html`
check_curl would use the wrong standard http/https port instead
of crafting the absolute url using the given scheme/hostname and port.

Adding a new test case for this for check_http and check_curl. check_http did
it correct already, so no fix necessary there.

before:

    %>./check_curl -H 127.0.0.1 -p 50493 -f follow -u /redirect_rel -s redirected -vvv
    **** HEADER ****
    HTTP/1.1 302 Found
    ...
    Location: /redirect2

    ...
    * Seen redirect location /redirect2
    ** scheme: (null)
    ** host: (null)
    ** port: (null)
    ** path: /redirect2
    Redirection to http://127.0.0.1:80/redirect2

fixed:

    %>./check_curl -H 127.0.0.1 -p 50493 -f follow -u /redirect_rel -s redirected -vvv
    **** HEADER ****
    HTTP/1.1 302 Found
    ...
    Location: /redirect2

    ...
    * Seen redirect location /redirect2
    ** scheme: (null)
    ** host: (null)
    ** port: (null)
    ** path: /redirect2
    Redirection to http://127.0.0.1:50493/redirect2

Signed-off-by: Sven Nierlein <sven@nierlein.de>

1 files changed, 11 insertions, 1 deletions

diff --git a/plugins/tests/check_http.t b/plugins/tests/check_http.t
index 6078b27..6eaf85b 100755
--- a/plugins/tests/check_http.t
+++ b/plugins/tests/check_http.t
@@ -13,7 +13,7 @@ use IO::Socket::INET;
 
 $ENV{'LC_TIME'} = "C";
 
-my $common_tests = 71;
+my $common_tests = 73;
 my $virtual_port_tests = 8;
 my $ssl_only_tests = 12;
 my $chunked_encoding_special_tests = 1;
@@ -199,6 +199,11 @@ sub run_server {
                                         $c->send_basic_header;
                                         $c->send_crlf;
                                         $c->send_response(HTTP::Response->new( 200, 'OK', undef, 'redirected' ));
+                        } elsif ($r->url->path eq "/redirect_rel") {
+                                $c->send_basic_header(302);
+                                $c->send_header("Location", "/redirect2" );
+                                $c->send_crlf;
+                                $c->send_response('moved to /redirect2');
                                 } elsif ($r->url->path eq "/redir_timeout") {
                                         $c->send_redirect( "/timeout" );
                                 } elsif ($r->url->path eq "/timeout") {
@@ -515,6 +520,11 @@ 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 follow -u /redirect_rel -s redirected";
+        $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";