From f160d040a25f4bc6c33787326b581a49c2e38cce Mon Sep 17 00:00:00 2001
From: Tobi Oetiker <tobi@oetiker.ch>
Date: Wed, 13 Aug 2008 20:13:37 +0000
Subject: In cgi mode, do NOT reload the cfg file since this can cause a storm
 on the webserver. Die instead AFTER working through the current request.

---
 lib/Smokeping.pm | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'lib')

diff --git a/lib/Smokeping.pm b/lib/Smokeping.pm
index 0c94b12..c53b3ed 100644
--- a/lib/Smokeping.pm
+++ b/lib/Smokeping.pm
@@ -1326,7 +1326,8 @@ sub get_detail ($$$$;$){
                '--height',$cfg->{Presentation}{detail}{height},
                '--width',$cfg->{Presentation}{detail}{width},
                '--title',$desc.$from,
-               '--rigid','--upper-limit', $max->{$s}{$start},
+               '--rigid',
+               '--upper-limit', $max->{$s}{$start},
                @log,
                '--lower-limit',(@log ? ($max->{$s}{$start} > 0.01) ? '0.001' : '0.0001' : '0'),
                '--vertical-label',$ProbeUnit,
@@ -3721,7 +3722,8 @@ sub load_cfg ($;$) {
     my $cfmod = (stat $cfgfile)[9] || die "ERROR: calling stat on $cfgfile: $!\n";
     # when running under speedy this will prevent reloading on every run
     # if cfgfile has been modified we will still run.
-    if (not defined $cfg or not defined $probes or $cfg->{__last} < $cfmod ){
+    if (not defined $cfg or not defined $probes # or $cfg->{__last} < $cfmod
+        ){
         $cfg = undef;
         my $parser = get_parser;
         $cfg = get_config $parser, $cfgfile;       
@@ -3844,9 +3846,10 @@ POD
 
 }
 sub cgi ($) {
+    my $cfgfile = shift;
     $cgimode = 'yes';
     umask 022;
-    load_cfg shift;
+    load_cfg $cfgfile;
     my $q=new CGI;
     initialize_cgilog();
     if ($q->param(-name=>'slave')) { # a slave is calling in
@@ -3864,6 +3867,10 @@ sub cgi ($) {
         }
         display_webpage $cfg,$q;
     }
+    if ((stat $cfgfile)[9] > $cfg->{__last}){
+        # we die if the cfgfile is newer than our in memory copy
+        kill -9, $$;
+    }
 }
 
     
-- 
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