1 files changed, 23 insertions, 0 deletions
diff --git a/ui-shared.c b/ui-shared.c
index 197ee37..37c60b2 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -25,24 +25,39 @@ static char *http_date(time_t t)
        return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
                   tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
                   tm->tm_hour, tm->tm_min, tm->tm_sec);
 }
 void cgit_print_error(char *msg)
 {
        html("<div class='error'>");
        html_txt(msg);
        html("</div>\n");
 }
+char *cgit_hosturl()
+{
+        char *host, *port;
+        host = getenv("SERVER_NAME");
+        if (!host)
+                return NULL;
+        port = getenv("SERVER_PORT");
+        if (port && atoi(port) != 80)
+                host = xstrdup(fmt("%s:%d", host, atoi(port)));
+        else
+                host = xstrdup(host);
+        return host;
+}
 char *cgit_rooturl()
 {
        if (ctx.cfg.virtual_root)
                return fmt("%s/", ctx.cfg.virtual_root);
        else
                return ctx.cfg.script_name;
 }
 char *cgit_repourl(const char *reponame)
 {
        if (ctx.cfg.virtual_root) {
                return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
@@ -419,41 +434,49 @@ void cgit_print_http_headers(struct cgit_context *ctx)
        else if (ctx->page.mimetype)
                htmlf("Content-Type: %s\n", ctx->page.mimetype);
        if (ctx->page.filename)
                htmlf("Content-Disposition: inline; filename=\"%s\"\n",
                      ctx->page.filename);
        htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
        htmlf("Expires: %s\n", http_date(ctx->page.expires));
        html("\n");
 }
 void cgit_print_docstart(struct cgit_context *ctx)
 {
+        char *host = cgit_hosturl();
        html(cgit_doctype);
        html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
        html("<head>\n");
        html("<title>");
        html_txt(ctx->page.title);
        html("</title>\n");
        htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
        if (ctx->cfg.robots && *ctx->cfg.robots)
                htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
        html("<link rel='stylesheet' type='text/css' href='");
        html_attr(ctx->cfg.css);
        html("'/>\n");
        if (ctx->cfg.favicon) {
                html("<link rel='shortcut icon' href='");
                html_attr(ctx->cfg.favicon);
                html("'/>\n");
        }
+        if (host && ctx->repo) {
+                html("<link rel='alternate' title='Atom feed' href='http://");
+                html_attr(cgit_hosturl());
+                html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.path,
+                                       fmt("h=%s", ctx->qry.head)));
+                html("' type='application/atom+xml'/>");
+        }
        html("</head>\n");
        html("<body>\n");
 }
 void cgit_print_docend()
 {
        html("</div>");
        if (ctx.cfg.footer)
                html_include(ctx.cfg.footer);
        else {
                html("<div class='footer'>generated ");
                cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);