git-svn: mangle refnames forbidden in git

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 3d80deba01696f7d039955da68daac9e61507420..c356e95f18f0f784584ce644c08e1966ca1be52f 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1150,6 +1150,7 @@ sub validate_refname {
 # in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
 sub to_utf8 {
        my $str = shift;
+       return undef unless defined $str;
        if (utf8::valid($str)) {
                utf8::decode($str);
                return $str;
@@ -1162,6 +1163,7 @@ sub to_utf8 {
 # correct, but quoted slashes look too horrible in bookmarks
 sub esc_param {
        my $str = shift;
+       return undef unless defined $str;
        $str =~ s/([^A-Za-z0-9\-_.~()\/:@ ]+)/CGI::escape($1)/eg;
        $str =~ s/ /\+/g;
        return $str;
@@ -1170,6 +1172,7 @@ sub esc_param {
 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 sub esc_url {
        my $str = shift;
+       return undef unless defined $str;
        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
        $str =~ s/\+/%2B/g;
        $str =~ s/ /\+/g;
@@ -1181,6 +1184,8 @@ sub esc_html {
        my $str = shift;
        my %opts = @_;
 
+       return undef unless defined $str;
+
        $str = to_utf8($str);
        $str = $cgi->escapeHTML($str);
        if ($opts{'-nbsp'}) {
@@ -1195,6 +1200,8 @@ sub esc_path {
        my $str = shift;
        my %opts = @_;
 
+       return undef unless defined $str;
+
        $str = to_utf8($str);
        $str = $cgi->escapeHTML($str);
        if ($opts{'-nbsp'}) {
@@ -2209,8 +2216,7 @@ sub config_to_multi {
 sub git_get_project_config {
        my ($key, $type) = @_;
 
-       # do we have project
-       return unless (defined $project && defined $git_dir);
+       return unless defined $git_dir;
 
        # key sanity check
        return unless ($key);
@@ -3382,7 +3388,7 @@ sub git_footer_html {
              "</html>";
 }
 
-# die_error(<http_status_code>, <error_message>)
+# die_error(<http_status_code>, <error_message>[, <detailed_html_description>])
 # Example: die_error(404, 'Hash not found')
 # By convention, use the following status codes (as defined in RFC 2616):
 # 400: Invalid or missing CGI parameters, or
@@ -3397,7 +3403,7 @@ sub git_footer_html {
 #      or down for maintenance).  Generally, this is a temporary state.
 sub die_error {
        my $status = shift || 500;
-       my $error = shift || "Internal server error";
+       my $error = esc_html(shift) || "Internal Server Error";
        my $extra = shift;
 
        my %http_responses = (