Merge branch 'jn/maint-gitweb-invalid-regexp'
[gitweb.git] / gitweb / gitweb.perl
index b63a5c67aff0fd587da31b307c1154ec033950f1..7729ed26b5f2b692abb293bc684a854cf1377921 100755 (executable)
@@ -1081,7 +1081,16 @@ sub evaluate_and_validate_params {
                if (length($searchtext) < 2) {
                        die_error(403, "At least two characters are required for search parameter");
                }
-               $search_regexp = $search_use_regexp ? $searchtext : quotemeta $searchtext;
+               if ($search_use_regexp) {
+                       $search_regexp = $searchtext;
+                       if (!eval { qr/$search_regexp/; 1; }) {
+                               (my $error = $@) =~ s/ at \S+ line \d+.*\n?//;
+                               die_error(400, "Invalid search regexp '$search_regexp'",
+                                         esc_html($error));
+                       }
+               } else {
+                       $search_regexp = quotemeta $searchtext;
+               }
        }
 }
 
@@ -2987,6 +2996,10 @@ sub search_projects_list {
        return @$projlist
                unless ($tagfilter || $searchtext);
 
+       # searching projects require filling to be run before it;
+       fill_project_list_info($projlist,
+                              $tagfilter  ? 'ctags' : (),
+                              $searchtext ? ('path', 'descr') : ());
        my @projects;
  PROJECT:
        foreach my $pr (@$projlist) {
@@ -5188,35 +5201,70 @@ sub git_project_search_form {
        print "</div>\n";
 }
 
-# fills project list info (age, description, owner, category, forks)
+# entry for given @keys needs filling if at least one of keys in list
+# is not present in %$project_info
+sub project_info_needs_filling {
+       my ($project_info, @keys) = @_;
+
+       # return List::MoreUtils::any { !exists $project_info->{$_} } @keys;
+       foreach my $key (@keys) {
+               if (!exists $project_info->{$key}) {
+                       return 1;
+               }
+       }
+       return;
+}
+
+# fills project list info (age, description, owner, category, forks, etc.)
 # for each project in the list, removing invalid projects from
-# returned list
+# returned list, or fill only specified info.
+#
+# Invalid projects are removed from the returned list if and only if you
+# ask 'age' or 'age_string' to be filled, because they are the only fields
+# that run unconditionally git command that requires repository, and
+# therefore do always check if project repository is invalid.
+#
+# USAGE:
+# * fill_project_list_info(\@project_list, 'descr_long', 'ctags')
+#   ensures that 'descr_long' and 'ctags' fields are filled
+# * @project_list = fill_project_list_info(\@project_list)
+#   ensures that all fields are filled (and invalid projects removed)
+#
 # NOTE: modifies $projlist, but does not remove entries from it
 sub fill_project_list_info {
-       my $projlist = shift;
+       my ($projlist, @wanted_keys) = @_;
        my @projects;
+       my $filter_set = sub { return @_; };
+       if (@wanted_keys) {
+               my %wanted_keys = map { $_ => 1 } @wanted_keys;
+               $filter_set = sub { return grep { $wanted_keys{$_} } @_; };
+       }
 
        my $show_ctags = gitweb_check_feature('ctags');
  PROJECT:
        foreach my $pr (@$projlist) {
-               my (@activity) = git_get_last_activity($pr->{'path'});
-               unless (@activity) {
-                       next PROJECT;
+               if (project_info_needs_filling($pr, $filter_set->('age', 'age_string'))) {
+                       my (@activity) = git_get_last_activity($pr->{'path'});
+                       unless (@activity) {
+                               next PROJECT;
+                       }
+                       ($pr->{'age'}, $pr->{'age_string'}) = @activity;
                }
-               ($pr->{'age'}, $pr->{'age_string'}) = @activity;
-               if (!defined $pr->{'descr'}) {
+               if (project_info_needs_filling($pr, $filter_set->('descr', 'descr_long'))) {
                        my $descr = git_get_project_description($pr->{'path'}) || "";
                        $descr = to_utf8($descr);
                        $pr->{'descr_long'} = $descr;
                        $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
                }
-               if (!defined $pr->{'owner'}) {
+               if (project_info_needs_filling($pr, $filter_set->('owner'))) {
                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
                }
-               if ($show_ctags) {
+               if ($show_ctags &&
+                   project_info_needs_filling($pr, $filter_set->('ctags'))) {
                        $pr->{'ctags'} = git_get_project_ctags($pr->{'path'});
                }
-               if ($projects_list_group_categories && !defined $pr->{'category'}) {
+               if ($projects_list_group_categories &&
+                   project_info_needs_filling($pr, $filter_set->('category'))) {
                        my $cat = git_get_project_category($pr->{'path'}) ||
                                                           $project_list_default_category;
                        $pr->{'category'} = to_utf8($cat);
@@ -5352,12 +5400,13 @@ sub git_project_list_body {
        # filtering out forks before filling info allows to do less work
        @projects = filter_forks_from_projects_list(\@projects)
                if ($check_forks);
-       @projects = fill_project_list_info(\@projects);
-       # searching projects require filling to be run before it
+       # search_projects_list pre-fills required info
        @projects = search_projects_list(\@projects,
                                         'searchtext' => $searchtext,
                                         'tagfilter'  => $tagfilter)
                if ($tagfilter || $searchtext);
+       # fill the rest
+       @projects = fill_project_list_info(\@projects);
 
        $order ||= $default_projects_order;
        $from = 0 unless defined $from;