ids.cgi: Add function to read the enabled/disabled sid files

This function is used to read-in the files for enabled or disabled sid
files and stores the sid and their state into a temporary hash which will
be returned by the function.

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>

diff --git a/html/cgi-bin/ids.cgi b/html/cgi-bin/ids.cgi
index 61039f9dae410dbb723fd12926991946e10368ef..bb124bdfeb16c402a4178835a30fd74834f2ec44 100644 (file)
--- a/html/cgi-bin/ids.cgi
+++ b/html/cgi-bin/ids.cgi
@@ -914,3 +914,54 @@ sub generate_home_net_file() {
        close(FILE);
 
 }
+
+#
+## Function to read-in the given enabled or disables sids file.
+#
+sub read_enabled_disabled_sids_file($) {
+       my ($file) = @_;
+
+       # Temporary hash to store the sids and their state. It will be
+       # returned at the end of this function.
+       my %temphash;
+
+       # Open the given filename.
+       open(FILE, "$file") or die "Could not open $file. $!\n";
+
+       # Loop through the file.
+       while(<FILE>) {
+               # Remove newlines.
+               chomp $_;
+
+               # Skip blank lines.
+               next if ($_ =~ /^\s*$/);
+
+               # Skip coments.
+               next if ($_ =~ /^\#/);
+
+               # Splitt line into sid and state part.
+               my ($state, $sid) = split(" ", $_);
+
+               # Skip line if the sid is not numeric.
+               next unless ($sid =~ /\d+/ );
+
+               # Check if the sid was enabled.
+               if ($state eq "enablesid") {
+                       # Add the sid and its state as enabled to the temporary hash.
+                       $temphash{$sid} = "enabled";
+               # Check if the sid was disabled.
+               } elsif ($state eq "disablesid") {
+                       # Add the sid and its state as disabled to the temporary hash.
+                       $temphash{$sid} = "disabled";
+               # Invalid state - skip the current sid and state.
+               } else {
+                       next;
+               }
+       }
+
+       # Close filehandle.
+       close(FILE);
+
+       # Return the hash.
+       return %temphash;
+}