gitweb: hack around CGI's list-context param() handling
As of CGI.pm's 4.08 release, the behavior to call CGI::param() in a list context is deprecated (because it can be potentially unsafe if called inside a hash constructor). This causes gitweb to issue a warning for some of our code, which in turn causes the tests to fail. Our use is in fact _not_ one of the dangerous cases, as we are intentionally using a list context. The recommended route by 4.08 is to use the new CGI::multi_param() call to make it explicit that we know what we are doing. However, that function is only available in 4.08, which is about a month old; we cannot rely on having it. One option would be to set $CGI::LIST_CONTEXT_WARN globally, which turns off the warning. However, that would eliminate the protection these newer releases are trying to provide. We want to annotate each site as OK using the new function. So instead, let's check whether CGI provides the multi_param() function, and if not, provide an implementation that just wraps param(). That will work on both old and new versions of CGI. Sadly, we cannot just check defined(\&CGI::multi_param), because CGI uses the autoload feature, which claims that all functions are defined. Instead, we just do a version check. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -20,6 +20,10 @@ use File::Basename qw(basename);
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use Time::HiRes qw(gettimeofday tv_interval);
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binmode STDOUT, ':utf8';
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if (!defined($CGI::VERSION) || $CGI::VERSION < 4.08) {
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eval 'sub CGI::multi_param { CGI::param(@_) }'
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}
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our $t0 = [ gettimeofday() ];
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our $number_of_git_cmds = 0;
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@ -871,7 +875,7 @@ sub evaluate_query_params {
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while (my ($name, $symbol) = each %cgi_param_mapping) {
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if ($symbol eq 'opt') {
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$input_params{$name} = [ map { decode_utf8($_) } $cgi->param($symbol) ];
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$input_params{$name} = [ map { decode_utf8($_) } $cgi->multi_param($symbol) ];
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} else {
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$input_params{$name} = decode_utf8($cgi->param($symbol));
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}
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