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[#25161833] (more) Clean up IP address parsing

There are some proxies which insert a non-IP value into
the HTTP_X_FORWARDED_FOR header (e.g. "unknown") to
protect privacy or who knows why. This would bunge up
Koha's IP detection. This patch looks for something that
looks like a good address, then if all else fails it
resorts to reporting that the client is not in any branch.
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1 parent e644454 commit 4c1129ddbe916984d89f8557548f371b6d103f4d @ctfliblime ctfliblime committed Feb 18, 2012
Showing with 3 additions and 1 deletion.
  1. +3 −1 lib/C4/
4 lib/C4/
@@ -19,6 +19,7 @@ package C4::Branch;
use strict;
use warnings;
use Carp;
+use List::Util qw(first);
use List::MoreUtils qw(uniq);
use Net::IP;
@@ -611,8 +612,9 @@ sub GetBranchByIp {
my $raw = shift
- $raw =~ s/([0-9.]+).*/$1/;
+ $raw = first {/^[0-9]/} split /[^0-9.]+/, $raw;
my $client_ip = Net::IP->new($raw);
+ return undef unless $client_ip;
for my $branch (values %{GetBranches()}) {
next unless $branch->{branchip};

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