# if we're called with PATH_INFO, we have to strip that
# from the URL to find our real URL
# we make $path_info global because it's also used later on
-my $path_info = $ENV{"PATH_INFO"};
+our $path_info = $ENV{"PATH_INFO"};
if ($path_info) {
$my_url =~ s,\Q$path_info\E$,,;
$my_uri =~ s,\Q$path_info\E$,,;
# (only effective if this variable evaluates to true)
our $export_ok = "++GITWEB_EXPORT_OK++";
+# show repository only if this subroutine returns true
+# when given the path to the project, for example:
+# sub { return -e "$_[0]/git-daemon-export-ok"; }
+our $export_auth_hook = undef;
+
# only allow viewing of repositories also shown on the overview page
our $strict_export = "++GITWEB_STRICT_EXPORT++";
sub check_export_ok {
my ($dir) = @_;
return (check_head_link($dir) &&
- (!$export_ok || -e "$dir/$export_ok"));
+ (!$export_ok || -e "$dir/$export_ok") &&
+ (!$export_auth_hook || $export_auth_hook->($dir)));
}
# process alternate names for backward compatibility
# together during validation: this allows subsequent uses (e.g. href()) to be
# agnostic of the parameter origin
-my %input_params = ();
+our %input_params = ();
# input parameters are stored with the long parameter name as key. This will
# also be used in the href subroutine to convert parameters to their CGI
# XXX: Warning: If you touch this, check the search form for updating,
# too.
-my @cgi_param_mapping = (
+our @cgi_param_mapping = (
project => "p",
action => "a",
file_name => "f",
extra_options => "opt",
search_use_regexp => "sr",
);
-my %cgi_param_mapping = @cgi_param_mapping;
+our %cgi_param_mapping = @cgi_param_mapping;
# we will also need to know the possible actions, for validation
-my %actions = (
+our %actions = (
"blame" => \&git_blame,
"blobdiff" => \&git_blobdiff,
"blobdiff_plain" => \&git_blobdiff_plain,
# finally, we have the hash of allowed extra_options for the commands that
# allow them
-my %allowed_options = (
+our %allowed_options = (
"--no-merges" => [ qw(rss atom log shortlog history) ],
);
$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();
our $git_dir;
$git_dir = "$projectroot/$project" if $project;
+ # list of supported snapshot formats
+ our @snapshot_fmts = gitweb_check_feature('snapshot');
+ @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
+
# dispatch
if (!defined $action) {
if (defined $hash) {
# - action
# - hash_parent or hash_parent_base:/file_parent
# - hash or hash_base:/filename
+ # - the snapshot_format as an appropriate suffix
# When the script is the root DirectoryIndex for the domain,
# $href here would be something like http://gitweb.example.com/
$href .= "/".esc_url($params{'project'}) if defined $params{'project'};
delete $params{'project'};
+ # since we destructively absorb parameters, we keep this
+ # boolean that remembers if we're handling a snapshot
+ my $is_snapshot = $params{'action'} eq 'snapshot';
+
# Summary just uses the project path URL, any other action is
# added to the URL
if (defined $params{'action'}) {
$href .= esc_url($params{'hash'});
delete $params{'hash'};
}
+
+ # If the action was a snapshot, we can absorb the
+ # snapshot_format parameter too
+ if ($is_snapshot) {
+ my $fmt = $params{'snapshot_format'};
+ # snapshot_format should always be defined when href()
+ # is called, but just in case some code forgets, we
+ # fall back to the default
+ $fmt ||= $snapshot_fmts[0];
+ $href .= $known_snapshot_formats{$fmt}{'suffix'};
+ delete $params{'snapshot_format'};
+ }
}
# now encode the parameters explicitly
my $input = shift || return undef;
if (!validate_pathname($input) ||
!(-d "$projectroot/$input") ||
- !check_head_link("$projectroot/$input") ||
- ($export_ok && !(-e "$projectroot/$input/$export_ok")) ||
+ !check_export_ok("$projectroot/$input") ||
($strict_export && !project_in_list($input))) {
return undef;
} else {
# linked. Pass the hash of the tree/commit to snapshot.
sub format_snapshot_links {
my ($hash) = @_;
- my @snapshot_fmts = gitweb_check_feature('snapshot');
- @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
my $num_fmts = @snapshot_fmts;
if ($num_fmts > 1) {
# A parenthesized list of links bearing format names.
my $ctags = {};
$git_dir = "$projectroot/$path";
- foreach (<$git_dir/ctags/*>) {
+ unless (opendir D, "$git_dir/ctags") {
+ return $ctags;
+ }
+ foreach (grep { -f $_ } map { "$git_dir/ctags/$_" } readdir(D)) {
open CT, $_ or next;
my $val = <CT>;
chomp $val;
my $ctag = $_; $ctag =~ s#.*/##;
$ctags->{$ctag} = $val;
}
+ closedir D;
$ctags;
}
}
sub git_snapshot {
- my @supported_fmts = gitweb_check_feature('snapshot');
- @supported_fmts = filter_snapshot_fmts(@supported_fmts);
-
my $format = $input_params{'snapshot_format'};
- if (!@supported_fmts) {
+ if (!@snapshot_fmts) {
die_error(403, "Snapshots not allowed");
}
# default to first supported snapshot format
- $format ||= $supported_fmts[0];
+ $format ||= $snapshot_fmts[0];
if ($format !~ m/^[a-z0-9]+$/) {
die_error(400, "Invalid snapshot format parameter");
} elsif (!exists($known_snapshot_formats{$format})) {
die_error(400, "Unknown snapshot format");
- } elsif (!grep($_ eq $format, @supported_fmts)) {
+ } elsif (!grep($_ eq $format, @snapshot_fmts)) {
die_error(403, "Unsupported snapshot format");
}