v085
[git.git] / gitweb.cgi
index 017664b..4ad3ce4 100755 (executable)
@@ -14,103 +14,133 @@ use CGI::Carp qw(fatalsToBrowser);
 
 my $cgi = new CGI;
 
-my $version =          "053";
+my $version =          "085";
 my $projectroot =      "/pub/scm";
-my $defaultprojects =  "linux/kernel/git";
+my $home_link =                "/git";
 my $gitbin =           "/usr/bin";
 my $gittmp =           "/tmp/gitweb";
-my $giturl =            "/pub/software/scm/cogito";
+my $logo_link =                "/pub/software/scm/cogito";
 my $my_url =           $cgi->url();
 my $my_uri =           $cgi->url(-absolute => 1);
-
-mkdir($gittmp, 0700);
+my $rss_link = "";
 
 my $project = $cgi->param('p');
+if (defined($project)) {
+       if ($project =~ /(^|\/)(|\.|\.\.)($|\/)/) {
+               $project = "";
+               die_error("", "Invalid project parameter.");
+       }
+       if (!(-d "$projectroot/$project")) {
+               $project = "";
+               die_error("", "No such project.");
+       }
+       $rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
+}
+
+my $file_name = $cgi->param('f');
+if (defined($file_name) && $file_name =~ /(^|\/)(|\.|\.\.)($|\/)/) {
+       $file_name = "";
+       die_error("", "Invalid file parameter.");
+}
+
 my $action = $cgi->param('a');
+if (defined($action) && $action =~ m/[^0-9a-zA-Z\.\-]+$/) {
+       $action = "";
+       die_error("", "Invalid action parameter.");
+}
+
 my $hash = $cgi->param('h');
+if (defined($hash) && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
+       $hash = "";
+       die_error("", "Invalid hash parameter.");
+}
+
 my $hash_parent = $cgi->param('hp');
-my $time_back = $cgi->param('t');
-if (!(defined($time_back))) {
-       $time_back = 1;
+if (defined($hash_parent) && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
+       $hash_parent = "";
+       die_error("", "Invalid parent hash parameter.");
 }
-$ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
 
-# sanitize input
-$action =~ s/[^0-9a-zA-Z\.\-]//g;
-$hash =~ s/[^0-9a-fA-F]//g;
-$hash_parent =~ s/[^0-9a-fA-F]//g;
-$time_back =~ s/[^0-9]+//g;
-if (defined($project) && $project =~ /(^|\/)(|\.|\.\.)($|\/)/) {
-       print $cgi->header(-type=>'text/plain', -status=>'403 Permission denied');
-       print "Malformed query, file missing or permission denied\n";
-       exit 0;
+my $time_back = $cgi->param('t');
+if (defined($time_back) && !($time_back =~ m/^[0-9]+$/)) {
+       $time_back = "";
+       die_error("", "Invalid time parameter.");
 }
-$project =~ s/|//g;
+
+$ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
+mkdir($gittmp, 0700);
 
 sub git_header_html {
-       print $cgi->header(-type => 'text/html', -charset => 'utf-8');
-print <<EOF;
+       my $status = shift || "200 OK";
+
+       print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
+       print <<EOF;
+<?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 <html>
 <head>
-       <title>git - $project $action</title>
-       <link rel="alternate" title="$project log" href="$my_uri?p=$project;a=rss" type="application/rss+xml"/>
-       <style type="text/css">
-       body { font-family: sans-serif; font-size: 12px; margin:0px; }
-       a { color:#0000cc; }
-       a:hover { color:#880000; }
-       a:visited { color:#880000; }
-       a:active { color:#880000; }
-       div.page_header {
-               margin:15px 25px 0px; height:25px; padding:8px;
-               font-size:18px; clear:both; font-weight:bold; background-color: #d9d8d1;
-       }
-       div.page_header a:visited { color:#0000cc; }
-       div.page_nav { margin:0px 25px; padding:8px; clear:both; border:solid #d9d8d1; border-width:0px 1px; }
-       div.page_nav a:visited { color:#0000cc; }
-       div.page_footer {
-               margin:0px 25px 15px; height:17px; padding:4px; padding-left:8px;
-               clear:both; background-color: #d9d8d1;
-       }
-       div.page_footer_text { float:left; color:#888888; font-size:10px;}
-       div.page_body { margin:0px 25px; padding:8px; clear:both; border: solid #d9d8d1; border-width:0px 1px; }
-       a.log_title {
-               display:block; margin:0px 25px; padding:8px; clear:both;
-               font-weight:bold; background-color: #d9d8d1; text-decoration:none; color:#000000;
-       }
-       a.log_title:hover { background-color: #c9c8c1; }
-       a.xml_logo { float:right; border:1px solid;
-               line-height:15px;
-               border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e; width:35px;
-               color:#ffffff; background-color:#ff6600;
-               font-weight:bold; font-family:sans-serif; text-align:center;
-               font-size:11px; display:block; text-decoration:none;
-       }
-       a.xml_logo:hover { background-color:#ee5500; }
-       div.log_head {
-               margin:0px 25px; min-height: 30px; padding:8px; clear:both;
-               border: solid #d9d8d1; border-width:0px 1px; font-family:monospace;
-               background-color: #edece6;
-       }
-       div.log_body {
-               margin:0px 25px; padding:8px; padding-left:150px; clear:both;
-               border:solid #d9d8d1; border-width:0px 1px;
-       }
-       span.log_age { position:relative; float:left; width:142px; }
-       div.log_functions { font-size:10px; font-family:sans-serif; position:relative; float:left; width:142px; }
-       div.signed_off { color: #a9a8a1; }
-       </style>
+<title>git - $project</title>
+$rss_link
+<style type="text/css">
+body { font-family: sans-serif; font-size: 12px; margin:0px; }
+a { color:#0000cc; }
+a:hover { color:#880000; }
+a:visited { color:#880000; }
+a:active { color:#880000; }
+div.page_header {
+       margin:15px 25px 0px; height:25px; padding:8px;
+       font-size:18px; font-weight:bold; background-color:#d9d8d1;
+}
+div.page_header a:visited { color:#0000cc; }
+div.page_header a:hover { color:#880000; }
+div.page_nav { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
+div.page_nav a:visited { color:#0000cc; }
+div.page_footer { margin:0px 25px 15px; height:17px; padding:4px; padding-left:8px; background-color: #d9d8d1; }
+div.page_footer_text { float:left; color:#555555; font-style:italic; }
+div.page_body { margin:0px 25px; padding:8px; border:solid #d9d8d1; border-width:0px 1px; }
+div.title, a.title {
+       display:block; margin:0px 25px; padding:6px 8px;
+       font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
+}
+a.title:hover { background-color: #d9d8d1; }
+div.title_text { margin:0px 25px; padding:6px 8px; border: solid #d9d8d1; border-width:0px 1px 1px; }
+div.log_body { margin:0px 25px; padding:8px; padding-left:150px; border:solid #d9d8d1; border-width:0px 1px; }
+span.log_age { position:relative; float:left; width:142px; font-style:italic; }
+div.log_link { font-size:10px; font-family:sans-serif; font-style:normal; position:relative; float:left; width:142px; }
+div.list {
+       display:block; margin:0px 25px; padding:4px 6px 2px; border:solid #d9d8d1; border-width:1px 1px 0px;
+       font-weight:bold;
+}
+div.list_head {
+       display:block; margin:0px 25px; padding:4px 6px 4px; border:solid #d9d8d1; border-width:1px 1px 0px;
+       font-style:italic;
+}
+div.list a { text-decoration:none; color:#000000; }
+div.list a:hover { color:#880000; }
+div.link {
+       margin:0px 25px; padding:0px 6px 8px; border:solid #d9d8d1; border-width:0px 1px;
+       font-family:sans-serif; font-size:10px;
+}
+td.key { padding-right:10px;  }
+a.xml_logo { float:right; border:1px solid;
+       line-height:15px;
+       border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e; width:35px;
+       color:#ffffff; background-color:#ff6600;
+       font-weight:bold; font-family:sans-serif; text-align:center;
+       font-size:10px; display:block; text-decoration:none;
+}
+a.xml_logo:hover { background-color:#ee5500; }
+</style>
 </head>
 <body>
 EOF
        print "<div class=\"page_header\">\n" .
-             "<a href=\"$giturl\">" .
+             "<a href=\"$logo_link\">" .
              "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
-       if ($defaultprojects ne "") {
-               print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
-       }
+       print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
        if ($project ne "") {
-               print $cgi->a({-href => "$my_uri?p=$project;a=log"}, $project);
+               print $cgi->a({-href => "$my_uri?p=$project;a=log"}, escapeHTML($project));
        }
        if ($action ne "") {
                print " / $action";
@@ -119,18 +149,37 @@ EOF
 }
 
 sub git_footer_html {
-       print "<div class=\"page_footer\">";
-       print "<div class=\"page_footer_text\">version $version</div>";
-       if ($project ne '') {
+       print "<div class=\"page_footer\">\n";
+       if ($project ne "") {
+               if (-e "$projectroot/$project/description") {
+                       open(my $fd, "$projectroot/$project/description");
+                       my $descr = <$fd>;
+                       print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
+                       close $fd;
+               }
                print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "xml_logo"}, "XML") . "\n";
        }
-       print "</div>";
-       print "</body>\n</html>";
+       print "</div>\n" .
+             "</body>\n" .
+             "</html>";
+}
+
+sub die_error {
+       my $status = shift || "403 Forbidden";
+       my $error = shift || "Malformed query, file missing or permission denied"; 
+
+       git_header_html($status);
+       print "<div class=\"page_body\">\n" .
+             "<br/><br/>\n";
+       print "$status - $error\n";
+       print "<br/></div>\n";
+       git_footer_html();
+       exit 0;
 }
 
 sub git_head {
        my $path = shift;
-       open my $fd, "$projectroot/$path/HEAD";
+       open(my $fd, "$projectroot/$path/HEAD") || die_error("", "Invalid project directory.");
        my $head = <$fd>;
        close $fd;
        chomp $head;
@@ -164,12 +213,37 @@ sub git_commit {
                        $co{'committer_name'} =~ s/ <.*//;
                }
        }
+       if (!defined($co{'tree'})) {
+               return;
+       }
        $co{'parents'} = \@parents;
        $co{'parent'} = $parents[0];
        my (@comment) = map { chomp; $_ } <$fd>;
        $co{'comment'} = \@comment;
        $co{'title'} = $comment[0];
        close $fd;
+
+       my $age = time - $co{'committer_epoch'};
+       $co{'age'} = $age;
+       if ($age > 60*60*24*365*2) {
+               $co{'age_string'} = (int $age/60/60/24/365);
+               $co{'age_string'} .= " years ago";
+       } elsif ($age > 60*60*24*365/12*2) {
+               $co{'age_string'} = int $age/60/60/24/365/12;
+               $co{'age_string'} .= " months ago";
+       } elsif ($age > 60*60*24*7*2) {
+               $co{'age_string'} = int $age/60/60/24/7;
+               $co{'age_string'} .= " weeks ago";
+       } elsif ($age > 60*60*24*2) {
+               $co{'age_string'} = int $age/60/60/24;
+               $co{'age_string'} .= " days ago";
+       } elsif ($age > 60*60*2) {
+               $co{'age_string'} = int $age/60/60;
+               $co{'age_string'} .= " hours ago";
+       } elsif ($age > 60*2) {
+               $co{'age_string'} = int $age/60;
+               $co{'age_string'} .= " minutes ago";
+       }
        return %co;
 }
 
@@ -188,7 +262,7 @@ sub git_diff_html {
        # create tmp from-file
        if ($from ne "") {
                $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
-               open my $fd2, "> $from_tmp";
+               open(my $fd2, "> $from_tmp");
                open my $fd, "-|", "$gitbin/cat-file blob $from";
                my @file = <$fd>;
                print $fd2 @file;
@@ -245,13 +319,13 @@ sub mode_str {
        my $perms = oct shift;
        my $modestr;
        if ($perms & 040000) {
-               $modestr .= 'drwxrwxr-x';
+               $modestr .= 'drwxr-xr-x';
        } else {
                # git cares only about the executable bit
                if ($perms & 0100) {
-                       $modestr .= '-rwxrwxr-x';
+                       $modestr .= '-rwxr-xr-x';
                } else {
-                       $modestr .= '-rw-rw-r--';
+                       $modestr .= '-rw-r--r--';
                };
        }
        return $modestr;
@@ -300,44 +374,33 @@ if ($action eq "git-logo.png") {
        exit;
 }
 
-# show list of default projects
-if ($project eq "") {
-       opendir(my $fd, "$projectroot/$defaultprojects");
-       my (@users) = sort grep(!/^\./, readdir($fd));
-       closedir($fd);
-       git_header_html();
-       print "<div class=\"page_body\">\n";
-       print "<br/><br/>\n";
-       foreach my $user (@users) {
-               opendir($fd, "$projectroot/$defaultprojects/$user");
-               my (@repos) = sort grep(/\.git$/, readdir($fd));
-               closedir($fd);
-               foreach my $repo (@repos) {
-                       if (-e "$projectroot/$defaultprojects/$user/$repo/HEAD") {
-                               print $cgi->a({-href => "$my_uri?p=$defaultprojects/$user/$repo;a=log"}, "$defaultprojects/$user/$repo") . "<br/>\n";
-                       }
-               }
-       }
-       print "<br/></div>";
-       git_footer_html();
+if (!defined($project)) {
+       print $cgi->redirect($home_link);
        exit;
 }
 
-if ($action eq "") {
+if (!defined($action)) {
        $action = "log";
 }
 
+if (!defined($time_back)) {
+       $time_back = 1;
+}
+
 if ($action eq "blob") {
        git_header_html();
-       print "<div class=\"page_body\"><pre><br/><br/>\n";
-       open my $fd, "-|", "$gitbin/cat-file blob $hash";
+       print "<div class=\"page_nav\">\n";
+       print "<br/><br/></div>\n";
+       print "<div class=\"title\">$hash</div>\n";
+       print "<div class=\"page_body\"><pre>\n";
+       open(my $fd, "-|", "$gitbin/cat-file blob $hash");
        my $nr;
        while (my $line = <$fd>) {
                $nr++;
                printf "<span style =\"color: #999999;\">%4i\t</span>%s", $nr, escapeHTML($line);;
        }
        close $fd;
-       print "<br/><br/></pre>\n";
+       print "<br/></pre>\n";
        print "</div>";
        git_footer_html();
 } elsif ($action eq "tree") {
@@ -347,7 +410,24 @@ if ($action eq "blob") {
        open my $fd, "-|", "$gitbin/ls-tree $hash";
        my (@entries) = map { chomp; $_ } <$fd>;
        close $fd;
+
        git_header_html();
+       my %co = git_commit($hash);
+       if (defined(%co)) {
+               print "<div class=\"page_nav\"> view\n" .
+                     $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | " .
+                     $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | " .
+                     $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") .
+                     "<br/><br/>\n" .
+                     "</div>\n";
+               print "<div>\n" .
+                     $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
+                     "</div>\n";
+       } else {
+               print "<div class=\"page_nav\">\n";
+               print "<br/><br/></div>\n";
+               print "<div class=\"title\">$hash</div>\n";
+       }
        print "<div class=\"page_body\">\n";
        print "<br/><pre>\n";
        foreach my $line (@entries) {
@@ -368,17 +448,17 @@ if ($action eq "blob") {
        git_footer_html();
 } elsif ($action eq "log" || $action eq "rss") {
        open my $fd, "-|", "$gitbin/rev-list " . git_head($project);
-       my (@revtree) = map { chomp; $_ } <$fd>;
+       my (@revlist) = map { chomp; $_ } <$fd>;
        close $fd;
 
        if ($action eq "log") {
                git_header_html();
                print "<div class=\"page_nav\">\n";
                print "view  ";
-               print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | \n" .
-                     $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | \n" .
-                     $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | \n" .
-                     $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | \n" .
+               print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | " .
+                     $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | " .
+                     $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | " .
+                     $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | " .
                      $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
                print "<br/><br/>\n" .
                      "</div>\n";
@@ -393,64 +473,41 @@ if ($action eq "blob") {
                      "<language>en</language>\n";
        }
 
-       for (my $i = 0; $i <= $#revtree; $i++) {
-               my $commit = $revtree[$i];
+       for (my $i = 0; $i <= $#revlist; $i++) {
+               my $commit = $revlist[$i];
                my %co = git_commit($commit);
                my %ad = date_str($co{'author_epoch'});
-               my $age = time - $co{'committer_epoch'};
-               my $age_string;
-               if ($age > 60*60*24*365*2) {
-                       $age_string = int $age/60/60/24/365;
-                       $age_string .= " years ago";
-               } elsif ($age > 60*60*24*365/12*2) {
-                       $age_string = int $age/60/60/24/365/12;
-                       $age_string .= " months ago";
-               } elsif ($age > 60*60*24*7*2) {
-                       $age_string = int $age/60/60/24/7;
-                       $age_string .= " weeks ago";
-               } elsif ($age > 60*60*24*2) {
-                       $age_string = int $age/60/60/24;
-                       $age_string .= " days ago";
-               } elsif ($age > 60*60*2) {
-                       $age_string = int $age/60/60;
-                       $age_string .= " hours ago";
-               } elsif ($age > 60*2) {
-                       $age_string = int $age/60;
-                       $age_string .= " minutes ago";
-               }
                if ($action eq "log") {
-               if ($time_back > 0 && $age > $time_back*60*60*24) {
+               if ($time_back > 0 && $co{'age'} > $time_back*60*60*24) {
                                if ($i == 0) {
-                                       print "<div class=\"page_body\"> Last change $age_string.<br/><br/></div>\n";
+                                       print "<div class=\"page_body\"> Last change " . $co{'age_string'} . ".<br/><br/></div>\n";
                                }
                                last;
                        }
-                       print "<div><a href=\"$my_uri?p=$project;a=commit;h=$commit\" class=\"log_title\">\n" .
-                             "<span class=\"log_age\">" . $age_string . "</span>\n" . escapeHTML($co{'title'}) . "</a>\n" .
+                       print "<div>\n" .
+                             $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"}, 
+                             "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
                              "</div>\n";
-                       print "<div class=\"log_head\">\n" .
-                             "<div class=\"log_functions\">\n" .
-                             $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "view commit") . "<br/>\n" .
-                             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "view diff") . "<br/>\n" .
+                       print "<div class=\"title_text\">\n" .
+                             "<div class=\"log_link\">\n" .
+                             "view " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") . " | " .
+                             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "diff") . "<br/>\n" .
                              "</div>\n" .
-                             escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]<br/>\n" .
+                             "<i>" . escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]</i><br/>\n" .
                              "</div>\n" .
                              "<div class=\"log_body\">\n";
                        my $comment = $co{'comment'};
                        foreach my $line (@$comment) {
-                               if ($line =~ m/^(signed-off|acked)-by:/i) {
-                                       print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
-                               } else {
-                                       print escapeHTML($line) . "<br/>\n";
-                               }
+                               last if ($line =~ m/^(signed-off|acked)-by:/i);
+                               print escapeHTML($line) . "<br/>\n";
                        }
-                       print "<br/><br/>\n" .
+                       print "<br/>\n" .
                              "</div>\n";
                } elsif ($action eq "rss") {
                        last if ($i >= 20);
                        print "<item>\n" .
                              "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'min'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
-                             "\t<link> " . $my_url . "?p=$project;a==commit;h=$commit</link>\n" .
+                             "\t<link> " . $my_url . "?p=$project;a=commit;h=$commit</link>\n" .
                              "\t<description>";
                        my $comment = $co{'comment'};
                        foreach my $line (@$comment) {
@@ -467,77 +524,139 @@ if ($action eq "blob") {
        }
 } elsif ($action eq "commit") {
        my %co = git_commit($hash);
+       if (!defined(%co)) {
+               die_error("", "Unknown commit object.");
+       }
        my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
        my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
-       open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
-       my (@difftree) = map { chomp; $_ } <$fd>;
-       close $fd;
 
+       my @difftree;
+       if (defined($co{'parent'})) {
+               open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
+               @difftree = map { chomp; $_ } <$fd>;
+               close $fd;
+       } else {
+               # fake git-diff-tree output for initial revision
+               open my $fd, "-|", "$gitbin/ls-tree -r $hash";
+               @difftree = map { chomp;  "+" . $_ } <$fd>;
+               close $fd;
+       }
        git_header_html();
        print "<div class=\"page_nav\"> view\n" .
              $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
-             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff") . "\n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
              "<br/><br/></div>\n";
-       print "<a class=\"log_title\" href=\"$my_uri?p=$project;a=commitdiff;h=$hash\">$co{'title'}</a>\n";
-       print "<div class=\"log_head\">\n";
-       print "author &nbsp; &nbsp; &nbsp;" . escapeHTML($co{'author'}) . "<br/>\n";
-       print "author-time " . $ad{'rfc2822'};
-       if ($ad{'hour_local'} < 6) { print "<span style=\"color: #cc0000;\">"; }
+       print "<div>\n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
+             "</div>\n";
+       print "<div class=\"title_text\">\n" .
+             "<table cellspacing=\"0\">";
+       print "<tr><td class=\"key\">author</td><td>" . escapeHTML($co{'author'}) . "</td><tr><td></td><td>" .
+             " " . $ad{'rfc2822'};
+       if ($ad{'hour_local'} < 6) {
+               print "<span style=\"color: #cc0000;\">";
+       }
        printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       if ($ad{'hour_local'} < 6 ) { print "</span>"; }
-       print "<br/>\n";
-       print "committer &nbsp; " . escapeHTML($co{'committer'}) . "<br/>\n";
-       print "commit-time " . $ad{'rfc2822'};
-       printf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'});
-       print "<br/>\n";
-       print "commit &nbsp &nbsp; &nbsp;$hash<br/>\n";
-       print "tree &nbsp; &nbsp; &nbsp; &nbsp" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'}"}, $co{'tree'}) . "<br/>\n";
+       if ($ad{'hour_local'} < 6 ) {
+               print "</span>";
+       }
+       print "</i>\n" .
+             "</td></tr>\n";
+       print "<tr><td class=\"key\">committer</td><td>" . escapeHTML($co{'committer'}) . "</td><tr><td></td><td>" .
+             " " . $cd{'rfc2822'} . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</i>\n" .
+             "</td></tr>\n";
+       print "<tr><td class=\"key\">commit</td><td style=\"font-family: monospace;\">$hash</td></tr>\n";
+       print "<tr><td class=\"key\">tree</td><td style=\"font-family: monospace;\">" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, $co{'tree'}) . "</td></tr>\n";
        my $parents  = $co{'parents'};
        foreach my $par (@$parents) {
-               print "parent &nbsp; &nbsp &nbsp" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "<br/>\n";
+               print "<tr><td class=\"key\">parent</td><td style=\"font-family: monospace;\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "</td></tr>\n";
        }
-       print "</div>\n";
+       print "</table></div>\n";
        print "<div class=\"page_body\">\n";
        my $comment = $co{'comment'};
        foreach my $line (@$comment) {
                if ($line =~ m/(signed-off|acked)-by:/i) {
-                       print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
+                       print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
                } else {
                        print escapeHTML($line) . "<br/>\n";
                }
        }
-       print "<br/><br/>\n";
-       print "<pre>\n";
+       print "</div>\n";
+       if ($#difftree > 10) {
+               print "<div class=\"list_head\">" . ($#difftree + 1) . " files changed:<br/></div>\n";
+       }
        foreach my $line (@difftree) {
                # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
                # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
+               # '*100664->100644      blob    b1a8e3dd5556b61dd771d32307c6ee5d7150fa43->b1a8e3dd5556b61dd771d32307c6ee5d7150fa43      show-files.c'
+               # '*100664->100644      blob    d08e895238bac36d8220586fdc28c27e1a7a76d3->d08e895238bac36d8220586fdc28c27e1a7a76d3      update-cache.c'
                $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
                my $op = $1;
                my $mode = $2;
                my $type = $3;
                my $id = $4;
                my $file = $5;
-               $mode =~ m/^([0-7]{6})/;
-               my $modestr = mode_str($1);
+               my $mode_chng = "";
                if ($type eq "blob") {
                        if ($op eq "+") {
-                               print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$id"}, $file) . " (new)\n";
+                               print "<div class=\"list\">\n" .
+                                     $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
+                                     escapeHTML($file) . " <span style=\"color: #008000;\">[new]</span>") . "\n" .
+                                     "</div>";
+                               print "<div class=\"link\">\n" .
+                                     "view " .
+                                     $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . "<br/>\n" .
+                                     "</div>\n";
                        } elsif ($op eq "-") {
-                               print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;hp=$id"}, $file) . " (removed)\n";
+                               print "<div class=\"list\">\n" .
+                                     $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"},
+                                     escapeHTML($file) .  " <span style=\"color: #c00000;\">[removed]</span>") . "\n" .
+                                     "</div>";
+                               print "<div class=\"link\">\n" .
+                                     "view " .
+                                     $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$id"}, "file") . " | " .
+                                     $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
+                                     "</div>\n";
                        } elsif ($op eq "*") {
                                $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
-                               my $from = $1;
-                               my $to = $2;
-                               print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to;hp=$from"}, $file) . "\n";
+                               my $from_id = $1;
+                               my $to_id = $2;
+                               $mode =~ m/^([0-7]{6})->([0-7]{6})$/;
+                               my $from_mode = $1;
+                               my $to_mode = $2;
+                               my $mode_chnge = "";
+                               if ($from_mode != $to_mode) {
+                                       $mode_chnge = " <span style=\"color: #888888;\"> [chmod $mode]</span>\n";
+                               }
+                               print "<div class=\"list\">\n";
+                               if ($to_id ne $from_id) {
+                                       print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"},
+                                             escapeHTML($file) . $mode_chnge) . "\n" .
+                                             "</div>\n";
+                               } else {
+                                       print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"},
+                                             escapeHTML($file) . $mode_chnge) . "\n" .
+                                             "</div>\n";
+                               }
+                               print "<div class=\"link\">\n" .
+                                     "view ";
+                               if ($to_id ne $from_id) {
+                                       print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id"}, "diff") . " | ";
+                               }
+                               print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id"}, "file") . " | " .
+                                     $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "<br/>\n" .
+                                     "</div>\n";
                        }
                }
        }
-       print "</pre>\n" .
-             "<br/></div>\n";
        git_footer_html();
 } elsif ($action eq "blobdiff") {
        git_header_html();
-       print "<div class=\"page_body\"><br/><br/>\n" .
+       print "<div class=\"page_nav\">\n";
+       print "<br/><br/></div>\n";
+       print "<div class=\"title\">$hash vs $hash_parent</div>\n";
+       print "<div class=\"page_body\">\n" .
              "<pre>\n";
        git_diff_html($hash_parent, $hash, $hash_parent, $hash);
        print "</pre>\n" .
@@ -545,6 +664,9 @@ if ($action eq "blob") {
        git_footer_html();
 } elsif ($action eq "commitdiff") {
        my %co = git_commit($hash);
+       if (!defined(%co)) {
+               die_error("", "Unknown commit object.");
+       }
        open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
        my (@difftree) = map { chomp; $_ } <$fd>;
        close $fd;
@@ -552,9 +674,12 @@ if ($action eq "blob") {
        git_header_html();
        print "<div class=\"page_nav\"> view\n" .
              $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
-             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff") . "\n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diffs") . " | \n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash"}, "tree") . "\n" .
              "<br/><br/></div>\n";
-       print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "log_title"}, $co{'title'}) ."\n";
+       print "<div>\n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
+             "</div>\n";
        print "<div class=\"page_body\">\n" .
              "<pre>\n";
        foreach my $line (@difftree) {
@@ -572,18 +697,61 @@ if ($action eq "blob") {
                                git_diff_html($file, "", $id, "");
                        } elsif ($op eq "*") {
                                $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
-                               git_diff_html($file, $file, $1, $2);
+                               if ($1 ne $2) {
+                                       git_diff_html($file, $file, $1, $2);
+                               }
                        }
                }
        }
        print "<br/></pre>\n";
        print "</div>";
        git_footer_html();
-} else {
+} elsif ($action eq "history") {
+       if (!(defined($hash))) {
+               $hash = git_head($project);
+       }
+       open my $fd, "-|", "$gitbin/rev-list $hash";
+       my (@revlist) = map { chomp; $_ } <$fd>;
+       close $fd;
+
        git_header_html();
-       print "<div class=\"page_body\">\n" .
-             "<br/><br/>\n";
-       print "unknown action\n";
-       print "<br/></div>\n";
+       print "<div class=\"page_nav\">\n";
+       print "<br/><br/></div>\n";
+       print "<div>\n" .
+             $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($file_name)) . "\n" .
+             "</div>\n";
+       foreach my $rev (@revlist) {
+               my %co = git_commit($rev);
+               my $parents  = $co{'parents'};
+               my $found = 0;
+               foreach my $parent (@$parents) {
+                       open $fd, "-|", "$gitbin/diff-tree -r $parent $rev $file_name";
+                       my (@difftree) = map { chomp; $_ } <$fd>;
+                       close $fd;
+
+                       foreach my $line (@difftree) {
+                               $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
+                               my $file = $5;
+                               if ($file eq $file_name) {
+                                       $found = 1;
+                                       last;
+                               }
+                       }
+               }
+               if ($found) {
+                       print "<div class=\"list\">\n" .
+                             $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"},
+                             "<span class=\"log_age\">" . $co{'age_string'} . "</span>" . escapeHTML($co{'title'})) . "\n" .
+                             "</div>\n";
+                       print "<div class=\"link\">\n" .
+                             "view " .
+                             $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$rev"}, "commit") . " | " .
+                             $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$rev"}, "tree") . "<br/><br/>\n" .
+                             "</div>\n";
+               }
+       }
        git_footer_html();
+} else {
+       $action = "";
+       die_error("", "Unknown action.");
 }