3 files changed, 18 insertions, 3 deletions

diff --git a/ui-atom.c b/ui-atom.c
index a6ea3ee..e5c31d9 100644
--- a/ui-atom.c
+++ b/ui-atom.c
@@ -39,33 +39,34 @@ void add_entry(struct commit *commit, char *host)
                         t++;
                 else
                         t = mail;
                 t2 = strchr(t, '>');
                 if (t2)
                         *t2 = '\0';
                 html("<email>");
                 html_txt(t);
                 html("</email>\n");
                 free(mail);
         }
         html("</author>\n");
         html("<published>");
         cgit_print_date(info->author_date, FMT_ATOMDATE, ctx.cfg.local_time);
         html("</published>\n");
         if (host) {
-                html("<link rel='alternate' type='text/html' href='http://");
+                html("<link rel='alternate' type='text/html' href='");
+                html(cgit_httpscheme());
                 html_attr(host);
                 html_attr(cgit_pageurl(ctx.repo->url, "commit", NULL));
                 if (ctx.cfg.virtual_root)
                         delim = '?';
                 htmlf("%cid=%s", delim, hex);
                 html("'/>\n");
         }
         htmlf("<id>%s</id>\n", hex);
         html("<content type='text'>\n");
         html_txt(info->msg);
         html("</content>\n");
         html("<content type='xhtml'>\n");
         html("<div xmlns='http://www.w3.org/1999/xhtml'>\n");
         html("<pre>\n");
         html_txt(info->msg);
         html("</pre>\n");
@@ -100,30 +101,31 @@ void cgit_print_atom(char *tip, char *path, int max_count)
         rev.max_count = max_count;
         setup_revisions(argc, argv, &rev, NULL);
         prepare_revision_walk(&rev);
 
         host = cgit_hosturl();
         ctx.page.mimetype = "text/xml";
         ctx.page.charset = "utf-8";
         cgit_print_http_headers(&ctx);
         html("<feed xmlns='http://www.w3.org/2005/Atom'>\n");
         html("<title>");
         html_txt(ctx.repo->name);
         html("</title>\n");
         html("<subtitle>");
         html_txt(ctx.repo->desc);
         html("</subtitle>\n");
         if (host) {
-                html("<link rel='alternate' type='text/html' href='http://");
+                html("<link rel='alternate' type='text/html' href='");
+                html(cgit_httpscheme());
                 html_attr(host);
                 html_attr(cgit_repourl(ctx.repo->url));
                 html("'/>\n");
         }
         while ((commit = get_revision(&rev)) != NULL) {
                 add_entry(commit, host);
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
         html("</feed>\n");
 }
diff --git a/ui-shared.c b/ui-shared.c
index 2630f23..29036d0 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -21,32 +21,43 @@ static char *http_date(time_t t)
         static char month[][4] =
                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
         struct tm *tm = gmtime(&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_httpscheme()
+{
+        char *https;
+
+        https = getenv("HTTPS");
+        if (https != NULL && strcmp(https, "on") == 0)
+                return "https://";
+        else
+                return "http://";
+}
+
 char *cgit_hosturl()
 {
         char *host, *port;
 
         host = getenv("HTTP_HOST");
         if (host) {
                 host = xstrdup(host);
         } else {
                 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);
@@ -481,33 +492,34 @@ void cgit_print_docstart(struct cgit_context *ctx)
         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("<link rel='alternate' title='Atom feed' href='");
+                html(cgit_httpscheme());
                 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");
         if (ctx->cfg.header)
                 html_include(ctx->cfg.header);
 }
 
 void cgit_print_docend()
 {
         html("</div>");
         if (ctx.cfg.footer)
                 html_include(ctx.cfg.footer);
diff --git a/ui-shared.h b/ui-shared.h
index 5a3821f..bff4826 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -1,19 +1,20 @@
 #ifndef UI_SHARED_H
 #define UI_SHARED_H
 
+extern char *cgit_httpscheme();
 extern char *cgit_hosturl();
 extern char *cgit_repourl(const char *reponame);
 extern char *cgit_fileurl(const char *reponame, const char *pagename,
                           const char *filename, const char *query);
 extern char *cgit_pageurl(const char *reponame, const char *pagename,
                           const char *query);
 
 extern void cgit_index_link(char *name, char *title, char *class,
                             char *pattern, int ofs);
 extern void cgit_summary_link(char *name, char *title, char *class, char *head);
 extern void cgit_tag_link(char *name, char *title, char *class, char *head,
                           char *rev);
 extern void cgit_tree_link(char *name, char *title, char *class, char *head,
                            char *rev, char *path);
 extern void cgit_plain_link(char *name, char *title, char *class, char *head,
                             char *rev, char *path);