diff options
| -rwxr-xr-x | gitweb/gitweb.perl | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl index b4cd2620f..a7f35ccc8 100755 --- a/gitweb/gitweb.perl +++ b/gitweb/gitweb.perl @@ -616,6 +616,45 @@ sub evaluate_path_info { $input_params{'hash_parent'} ||= $parentrefname; } } + + # for the snapshot action, we allow URLs in the form + # $project/snapshot/$hash.ext + # where .ext determines the snapshot and gets removed from the + # passed $refname to provide the $hash. + # + # To be able to tell that $refname includes the format extension, we + # require the following two conditions to be satisfied: + # - the hash input parameter MUST have been set from the $refname part + # of the URL (i.e. they must be equal) + # - the snapshot format MUST NOT have been defined already (e.g. from + # CGI parameter sf) + # It's also useless to try any matching unless $refname has a dot, + # so we check for that too + if (defined $input_params{'action'} && + $input_params{'action'} eq 'snapshot' && + defined $refname && index($refname, '.') != -1 && + $refname eq $input_params{'hash'} && + !defined $input_params{'snapshot_format'}) { + # We loop over the known snapshot formats, checking for + # extensions. Allowed extensions are both the defined suffix + # (which includes the initial dot already) and the snapshot + # format key itself, with a prepended dot + while (my ($fmt, %opt) = each %known_snapshot_formats) { + my $hash = $refname; + my $sfx; + $hash =~ s/(\Q$opt{'suffix'}\E|\Q.$fmt\E)$//; + next unless $sfx = $1; + # a valid suffix was found, so set the snapshot format + # and reset the hash parameter + $input_params{'snapshot_format'} = $fmt; + $input_params{'hash'} = $hash; + # we also set the format suffix to the one requested + # in the URL: this way a request for e.g. .tgz returns + # a .tgz instead of a .tar.gz + $known_snapshot_formats{$fmt}{'suffix'} = $sfx; + last; + } + } } evaluate_path_info(); |