Jakub Narębski <jna...@gmail.com> writes:
> On Wed, Dec 4, 2013 at 2:43 PM, Krzesimir Nowak <krzesi...@endocode.com>
> wrote:
>
>> Users of validate_* passing "0" might get failures on correct name
>> because of coercion of "0" to false in code like:
>> die_error(500, "invalid ref") unless (check_ref_format ("0"));
>
> I would say that the problem was that validate_sth() subroutines returned
> value of parameter if it was valid, which could be a problem if said value is
> false-ish (e.g. validate_refname("0"), or validate_pathname("0")).
>
> Returning undef on invalid data newer was a problem, using 'return $input;'
> on valid input was, especially that validate_sth() functions were ever used
> in a conditional:
>
> if (!validate_sth($param)) {
> die_error(...)
> }
Correct, and I think that is exactly what the above three lines in
the proposed log message says.
> While at it validate_sth() is not a best name for boolean predicate:
> is_valid_sth() would be better, I think.
Yeah, I tend to agree. As we are doing a whole-sale API clean-up in
this patch, we might as well do that at the same time.
>> Signed-off-by: Krzesimir Nowak <krzesi...@endocode.com>
>> ---
>> gitweb/gitweb.perl | 45 +++++++++++++++++++++++++--------------------
>> 1 file changed, 25 insertions(+), 20 deletions(-)
>>
>> diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
>> index 67415b9..3434602 100755
>> --- a/gitweb/gitweb.perl
>> +++ b/gitweb/gitweb.perl
>> @@ -1419,63 +1419,68 @@ sub href {
>> ## validation, quoting/unquoting and escaping
>>
>> sub validate_action {
>> - my $input = shift || return undef;
>> - return undef unless exists $actions{$input};
>> - return $input;
>> + my $input = shift;
>> +
>> + return 0 unless defined $input;
>> + return 0 unless exists $actions{$input};
>> + return 1;
>> }
>
> The only change that needs to be doe is replacing
>
> return $input;
>
> with
>
> return 1;
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