X-Git-Url: https://git.cameronkatri.com/cgit.git/blobdiff_plain/547a64fbd65de293c290f4e18bbeae958d54aaa7..8acfa51a8b3c6011483132c933213231f7a4865b:/ui-shared.c?ds=sidebyside

diff --git a/ui-shared.c b/ui-shared.c
index 08ea003..1ede2b0 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1,12 +1,13 @@
 /* ui-shared.c: common web output functions
  *
- * Copyright (C) 2006 Lars Hjemli
+ * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
+#include "ui-shared.h"
 #include "cmd.h"
 #include "html.h"
 
@@ -23,18 +24,29 @@ static char *http_date(time_t t)
 		 "Jul", "Aug", "Sep", "Oct", "Nov", "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_mday, month[tm->tm_mon], 1900 + tm->tm_year,
 		   tm->tm_hour, tm->tm_min, tm->tm_sec);
 }
 
-void cgit_print_error(char *msg)
+void cgit_print_error(const char *fmt, ...)
 {
+	va_list ap;
+	va_start(ap, fmt);
+	cgit_vprint_error(fmt, ap);
+	va_end(ap);
+}
+
+void cgit_vprint_error(const char *fmt, va_list ap)
+{
+	va_list cp;
 	html("<div class='error'>");
-	html_txt(msg);
+	va_copy(cp, ap);
+	html_vtxtf(fmt, cp);
+	va_end(cp);
 	html("</div>\n");
 }
 
-char *cgit_httpscheme()
+const char *cgit_httpscheme()
 {
 	if (ctx.env.https && !strcmp(ctx.env.https, "on"))
 		return "https://";
@@ -42,7 +54,7 @@ char *cgit_httpscheme()
 		return "http://";
 }
 
-char *cgit_hosturl()
+const char *cgit_hosturl()
 {
 	if (ctx.env.http_host)
 		return ctx.env.http_host;
@@ -50,50 +62,57 @@ char *cgit_hosturl()
 		return NULL;
 	if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
 		return ctx.env.server_name;
-	return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
+	return fmtalloc("%s:%s", ctx.env.server_name, ctx.env.server_port);
 }
 
-char *cgit_rooturl()
+const char *cgit_rooturl()
 {
 	if (ctx.cfg.virtual_root)
-		return fmt("%s/", ctx.cfg.virtual_root);
+		return ctx.cfg.virtual_root;
 	else
 		return ctx.cfg.script_name;
 }
 
+const char *cgit_loginurl()
+{
+	static const char *login_url = 0;
+	if (!login_url)
+		login_url = fmtalloc("%s?p=login", cgit_rooturl());
+	return login_url;
+}
+
 char *cgit_repourl(const char *reponame)
 {
-	if (ctx.cfg.virtual_root) {
-		return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
-	} else {
-		return fmt("?r=%s", reponame);
-	}
+	if (ctx.cfg.virtual_root)
+		return fmtalloc("%s%s/", ctx.cfg.virtual_root, reponame);
+	else
+		return fmtalloc("?r=%s", reponame);
 }
 
 char *cgit_fileurl(const char *reponame, const char *pagename,
 		   const char *filename, const char *query)
 {
-	char *tmp;
+	struct strbuf sb = STRBUF_INIT;
 	char *delim;
 
 	if (ctx.cfg.virtual_root) {
-		tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
-			  pagename, (filename ? filename:""));
+		strbuf_addf(&sb, "%s%s/%s/%s", ctx.cfg.virtual_root, reponame,
+			    pagename, (filename ? filename:""));
 		delim = "?";
 	} else {
-		tmp = fmt("?url=%s/%s/%s", reponame, pagename,
-			  (filename ? filename : ""));
-		delim = "&";
+		strbuf_addf(&sb, "?url=%s/%s/%s", reponame, pagename,
+			    (filename ? filename : ""));
+		delim = "&amp;";
 	}
 	if (query)
-		tmp = fmt("%s%s%s", tmp, delim, query);
-	return tmp;
+		strbuf_addf(&sb, "%s%s", delim, query);
+	return strbuf_detach(&sb, NULL);
 }
 
 char *cgit_pageurl(const char *reponame, const char *pagename,
 		   const char *query)
 {
-	return cgit_fileurl(reponame,pagename,0,query);
+	return cgit_fileurl(reponame, pagename, 0, query);
 }
 
 const char *cgit_repobasename(const char *reponame)
@@ -102,57 +121,49 @@ const char *cgit_repobasename(const char *reponame)
 	static char rvbuf[1024];
 	int p;
 	const char *rv;
-	strncpy(rvbuf,reponame,sizeof(rvbuf));
-	if(rvbuf[sizeof(rvbuf)-1])
+	strncpy(rvbuf, reponame, sizeof(rvbuf));
+	if (rvbuf[sizeof(rvbuf)-1])
 		die("cgit_repobasename: truncated repository name '%s'", reponame);
 	p = strlen(rvbuf)-1;
 	/* strip trailing slashes */
-	while(p && rvbuf[p]=='/') rvbuf[p--]=0;
+	while (p && rvbuf[p] == '/') rvbuf[p--] = 0;
 	/* strip trailing .git */
-	if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
+	if (p >= 3 && !prefixcmp(&rvbuf[p-3], ".git")) {
 		p -= 3; rvbuf[p--] = 0;
 	}
 	/* strip more trailing slashes if any */
-	while( p && rvbuf[p]=='/') rvbuf[p--]=0;
+	while ( p && rvbuf[p] == '/') rvbuf[p--] = 0;
 	/* find last slash in the remaining string */
 	rv = strrchr(rvbuf,'/');
-	if(rv)
+	if (rv)
 		return ++rv;
 	return rvbuf;
 }
 
-char *cgit_currurl()
-{
-	if (!ctx.cfg.virtual_root)
-		return ctx.cfg.script_name;
-	else if (ctx.qry.page)
-		return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
-	else if (ctx.qry.repo)
-		return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
-	else
-		return fmt("%s/", ctx.cfg.virtual_root);
-}
-
-static void site_url(char *page, char *search, int ofs)
+static void site_url(const char *page, const char *search, const char *sort, int ofs)
 {
 	char *delim = "?";
 
-	if (ctx.cfg.virtual_root) {
+	if (ctx.cfg.virtual_root)
 		html_attr(ctx.cfg.virtual_root);
-		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
-			html("/");
-	} else
-		html(ctx.cfg.script_name);
+	else
+		html_url_path(ctx.cfg.script_name);
 
 	if (page) {
 		htmlf("?p=%s", page);
-		delim = "&";
+		delim = "&amp;";
 	}
 	if (search) {
 		html(delim);
 		html("q=");
 		html_attr(search);
-		delim = "&";
+		delim = "&amp;";
+	}
+	if (sort) {
+		html(delim);
+		html("s=");
+		html_attr(sort);
+		delim = "&amp;";
 	}
 	if (ofs) {
 		html(delim);
@@ -160,8 +171,8 @@ static void site_url(char *page, char *search, int ofs)
 	}
 }
 
-static void site_link(char *page, char *name, char *title, char *class,
-		      char *search, int ofs)
+static void site_link(const char *page, const char *name, const char *title,
+		      const char *class, const char *search, const char *sort, int ofs)
 {
 	html("<a");
 	if (title) {
@@ -175,20 +186,20 @@ static void site_link(char *page, char *name, char *title, char *class,
 		html("'");
 	}
 	html(" href='");
-	site_url(page, search, ofs);
+	site_url(page, search, sort, ofs);
 	html("'>");
 	html_txt(name);
 	html("</a>");
 }
 
-void cgit_index_link(char *name, char *title, char *class, char *pattern,
-		     int ofs)
+void cgit_index_link(const char *name, const char *title, const char *class,
+		     const char *pattern, const char *sort, int ofs)
 {
-	site_link(NULL, name, title, class, pattern, ofs);
+	site_link(NULL, name, title, class, pattern, sort, ofs);
 }
 
-static char *repolink(char *title, char *class, char *page, char *head,
-		      char *path)
+static char *repolink(const char *title, const char *class, const char *page,
+		      const char *head, const char *path)
 {
 	char *delim = "?";
 
@@ -206,8 +217,6 @@ static char *repolink(char *title, char *class, char *page, char *head,
 	html(" href='");
 	if (ctx.cfg.virtual_root) {
 		html_url_path(ctx.cfg.virtual_root);
-		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
-			html("/");
 		html_url_path(ctx.repo->url);
 		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 			html("/");
@@ -218,7 +227,7 @@ static char *repolink(char *title, char *class, char *page, char *head,
 				html_url_path(path);
 		}
 	} else {
-		html(ctx.cfg.script_name);
+		html_url_path(ctx.cfg.script_name);
 		html("?url=");
 		html_url_arg(ctx.repo->url);
 		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
@@ -240,13 +249,14 @@ static char *repolink(char *title, char *class, char *page, char *head,
 	return fmt("%s", delim);
 }
 
-static void reporevlink(char *page, char *name, char *title, char *class,
-			char *head, char *rev, char *path)
+static void reporevlink(const char *page, const char *name, const char *title,
+			const char *class, const char *head, const char *rev,
+			const char *path)
 {
 	char *delim;
 
 	delim = repolink(title, class, page, head, path);
-	if (rev && strcmp(rev, ctx.qry.head)) {
+	if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
 		html(delim);
 		html("id=");
 		html_url_arg(rev);
@@ -256,47 +266,48 @@ static void reporevlink(char *page, char *name, char *title, char *class,
 	html("</a>");
 }
 
-void cgit_summary_link(char *name, char *title, char *class, char *head)
+void cgit_summary_link(const char *name, const char *title, const char *class,
+		       const char *head)
 {
 	reporevlink(NULL, name, title, class, head, NULL, NULL);
 }
 
-void cgit_tag_link(char *name, char *title, char *class, char *head,
-		   char *rev)
+void cgit_tag_link(const char *name, const char *title, const char *class,
+		   const char *head, const char *rev)
 {
 	reporevlink("tag", name, title, class, head, rev, NULL);
 }
 
-void cgit_tree_link(char *name, char *title, char *class, char *head,
-		    char *rev, char *path)
+void cgit_tree_link(const char *name, const char *title, const char *class,
+		    const char *head, const char *rev, const char *path)
 {
 	reporevlink("tree", name, title, class, head, rev, path);
 }
 
-void cgit_plain_link(char *name, char *title, char *class, char *head,
-		     char *rev, char *path)
+void cgit_plain_link(const char *name, const char *title, const char *class,
+		     const char *head, const char *rev, const char *path)
 {
 	reporevlink("plain", name, title, class, head, rev, path);
 }
 
-void cgit_log_link(char *name, char *title, char *class, char *head,
-		   char *rev, char *path, int ofs, char *grep, char *pattern,
-		   int showmsg)
+void cgit_log_link(const char *name, const char *title, const char *class,
+		   const char *head, const char *rev, const char *path,
+		   int ofs, const char *grep, const char *pattern, int showmsg)
 {
 	char *delim;
 
 	delim = repolink(title, class, "log", head, path);
-	if (rev && strcmp(rev, ctx.qry.head)) {
+	if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 		html(delim);
 		html("id=");
 		html_url_arg(rev);
-		delim = "&";
+		delim = "&amp;";
 	}
 	if (grep && pattern) {
 		html(delim);
 		html("qt=");
 		html_url_arg(grep);
-		delim = "&";
+		delim = "&amp;";
 		html(delim);
 		html("q=");
 		html_url_arg(pattern);
@@ -305,7 +316,7 @@ void cgit_log_link(char *name, char *title, char *class, char *head,
 		html(delim);
 		html("ofs=");
 		htmlf("%d", ofs);
-		delim = "&";
+		delim = "&amp;";
 	}
 	if (showmsg) {
 		html(delim);
@@ -316,8 +327,9 @@ void cgit_log_link(char *name, char *title, char *class, char *head,
 	html("</a>");
 }
 
-void cgit_commit_link(char *name, char *title, char *class, char *head,
-		      char *rev, int toggle_ssdiff)
+void cgit_commit_link(char *name, const char *title, const char *class,
+		      const char *head, const char *rev, const char *path,
+		      int toggle_ssdiff)
 {
 	if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
 		name[ctx.cfg.max_msg_len] = '\0';
@@ -328,8 +340,8 @@ void cgit_commit_link(char *name, char *title, char *class, char *head,
 
 	char *delim;
 
-	delim = repolink(title, class, "commit", head, NULL);
-	if (rev && strcmp(rev, ctx.qry.head)) {
+	delim = repolink(title, class, "commit", head, path);
+	if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
 		html(delim);
 		html("id=");
 		html_url_arg(rev);
@@ -338,32 +350,48 @@ void cgit_commit_link(char *name, char *title, char *class, char *head,
 	if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 		html(delim);
 		html("ss=1");
+		delim = "&amp;";
+	}
+	if (ctx.qry.context > 0 && ctx.qry.context != 3) {
+		html(delim);
+		html("context=");
+		htmlf("%d", ctx.qry.context);
+		delim = "&amp;";
+	}
+	if (ctx.qry.ignorews) {
+		html(delim);
+		html("ignorews=1");
+		delim = "&amp;";
 	}
 	html("'>");
-	html_txt(name);
+	if (name[0] != '\0')
+		html_txt(name);
+	else
+		html_txt("(no commit message)");
 	html("</a>");
 }
 
-void cgit_refs_link(char *name, char *title, char *class, char *head,
-		    char *rev, char *path)
+void cgit_refs_link(const char *name, const char *title, const char *class,
+		    const char *head, const char *rev, const char *path)
 {
 	reporevlink("refs", name, title, class, head, rev, path);
 }
 
-void cgit_snapshot_link(char *name, char *title, char *class, char *head,
-			char *rev, char *archivename)
+void cgit_snapshot_link(const char *name, const char *title, const char *class,
+			const char *head, const char *rev,
+			const char *archivename)
 {
 	reporevlink("snapshot", name, title, class, head, rev, archivename);
 }
 
-void cgit_diff_link(char *name, char *title, char *class, char *head,
-		    char *new_rev, char *old_rev, char *path,
-		    int toggle_ssdiff)
+void cgit_diff_link(const char *name, const char *title, const char *class,
+		    const char *head, const char *new_rev, const char *old_rev,
+		    const char *path, int toggle_ssdiff)
 {
 	char *delim;
 
 	delim = repolink(title, class, "diff", head, path);
-	if (new_rev && strcmp(new_rev, ctx.qry.head)) {
+	if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
 		html(delim);
 		html("id=");
 		html_url_arg(new_rev);
@@ -378,24 +406,94 @@ void cgit_diff_link(char *name, char *title, char *class, char *head,
 	if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
 		html(delim);
 		html("ss=1");
+		delim = "&amp;";
+	}
+	if (ctx.qry.context > 0 && ctx.qry.context != 3) {
+		html(delim);
+		html("context=");
+		htmlf("%d", ctx.qry.context);
+		delim = "&amp;";
+	}
+	if (ctx.qry.ignorews) {
+		html(delim);
+		html("ignorews=1");
+		delim = "&amp;";
 	}
 	html("'>");
 	html_txt(name);
 	html("</a>");
 }
 
-void cgit_patch_link(char *name, char *title, char *class, char *head,
-		     char *rev)
+void cgit_patch_link(const char *name, const char *title, const char *class,
+		     const char *head, const char *rev, const char *path)
 {
-	reporevlink("patch", name, title, class, head, rev, NULL);
+	reporevlink("patch", name, title, class, head, rev, path);
 }
 
-void cgit_stats_link(char *name, char *title, char *class, char *head,
-		     char *path)
+void cgit_stats_link(const char *name, const char *title, const char *class,
+		     const char *head, const char *path)
 {
 	reporevlink("stats", name, title, class, head, NULL, path);
 }
 
+static void cgit_self_link(char *name, const char *title, const char *class)
+{
+	if (!strcmp(ctx.qry.page, "repolist"))
+		cgit_index_link(name, title, class, ctx.qry.search, ctx.qry.sort,
+				ctx.qry.ofs);
+	else if (!strcmp(ctx.qry.page, "summary"))
+		cgit_summary_link(name, title, class, ctx.qry.head);
+	else if (!strcmp(ctx.qry.page, "tag"))
+		cgit_tag_link(name, title, class, ctx.qry.head,
+			      ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL);
+	else if (!strcmp(ctx.qry.page, "tree"))
+		cgit_tree_link(name, title, class, ctx.qry.head,
+			       ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+			       ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "plain"))
+		cgit_plain_link(name, title, class, ctx.qry.head,
+				ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "log"))
+		cgit_log_link(name, title, class, ctx.qry.head,
+			      ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+			      ctx.qry.path, ctx.qry.ofs,
+			      ctx.qry.grep, ctx.qry.search,
+			      ctx.qry.showmsg);
+	else if (!strcmp(ctx.qry.page, "commit"))
+		cgit_commit_link(name, title, class, ctx.qry.head,
+				 ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				 ctx.qry.path, 0);
+	else if (!strcmp(ctx.qry.page, "patch"))
+		cgit_patch_link(name, title, class, ctx.qry.head,
+				ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "refs"))
+		cgit_refs_link(name, title, class, ctx.qry.head,
+			       ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+			       ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "snapshot"))
+		cgit_snapshot_link(name, title, class, ctx.qry.head,
+				   ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
+				   ctx.qry.path);
+	else if (!strcmp(ctx.qry.page, "diff"))
+		cgit_diff_link(name, title, class, ctx.qry.head,
+			       ctx.qry.sha1, ctx.qry.sha2,
+			       ctx.qry.path, 0);
+	else if (!strcmp(ctx.qry.page, "stats"))
+		cgit_stats_link(name, title, class, ctx.qry.head,
+				ctx.qry.path);
+	else {
+		/* Don't known how to make link for this page */
+		repolink(title, class, ctx.qry.page, ctx.qry.head, ctx.qry.path);
+		html("><!-- cgit_self_link() doesn't know how to make link for page '");
+		html_txt(ctx.qry.page);
+		html("' -->");
+		html_txt(name);
+		html("</a>");
+	}
+}
+
 void cgit_object_link(struct object *obj)
 {
 	char *page, *shortrev, *fullrev, *name;
@@ -404,8 +502,8 @@ void cgit_object_link(struct object *obj)
 	shortrev = xstrdup(fullrev);
 	shortrev[10] = '\0';
 	if (obj->type == OBJ_COMMIT) {
-                cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
-				 ctx.qry.head, fullrev, 0);
+		cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
+				 ctx.qry.head, fullrev, NULL, 0);
 		return;
 	} else if (obj->type == OBJ_TREE)
 		page = "tree";
@@ -417,14 +515,72 @@ void cgit_object_link(struct object *obj)
 	reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 }
 
-void cgit_print_date(time_t secs, char *format, int local_time)
+static struct string_list_item *lookup_path(struct string_list *list,
+					    const char *path)
+{
+	struct string_list_item *item;
+
+	while (path && path[0]) {
+		if ((item = string_list_lookup(list, path)))
+			return item;
+		if (!(path = strchr(path, '/')))
+			break;
+		path++;
+	}
+	return NULL;
+}
+
+void cgit_submodule_link(const char *class, char *path, const char *rev)
+{
+	struct string_list *list;
+	struct string_list_item *item;
+	char tail, *dir;
+	size_t len;
+
+	len = 0;
+	tail = 0;
+	list = &ctx.repo->submodules;
+	item = lookup_path(list, path);
+	if (!item) {
+		len = strlen(path);
+		tail = path[len - 1];
+		if (tail == '/') {
+			path[len - 1] = 0;
+			item = lookup_path(list, path);
+		}
+	}
+	html("<a ");
+	if (class)
+		htmlf("class='%s' ", class);
+	html("href='");
+	if (item) {
+		html_attrf(item->util, rev);
+	} else if (ctx.repo->module_link) {
+		dir = strrchr(path, '/');
+		if (dir)
+			dir++;
+		else
+			dir = path;
+		html_attrf(ctx.repo->module_link, dir, rev);
+	} else {
+		html("#");
+	}
+	html("'>");
+	html_txt(path);
+	html("</a>");
+	html_txtf(" @ %.7s", rev);
+	if (item && tail)
+		path[len - 1] = tail;
+}
+
+void cgit_print_date(time_t secs, const char *format, int local_time)
 {
 	char buf[64];
 	struct tm *time;
 
 	if (!secs)
 		return;
-	if(local_time)
+	if (local_time)
 		time = localtime(&secs);
 	else
 		time = gmtime(&secs);
@@ -432,7 +588,7 @@ void cgit_print_date(time_t secs, char *format, int local_time)
 	html_txt(buf);
 }
 
-void cgit_print_age(time_t t, time_t max_relative, char *format)
+void cgit_print_age(time_t t, time_t max_relative, const char *format)
 {
 	time_t now, secs;
 
@@ -440,6 +596,8 @@ void cgit_print_age(time_t t, time_t max_relative, char *format)
 		return;
 	time(&now);
 	secs = now - t;
+	if (secs < 0)
+		secs = 0;
 
 	if (secs > max_relative && max_relative >= 0) {
 		cgit_print_date(t, format, ctx.cfg.local_time);
@@ -475,72 +633,78 @@ void cgit_print_age(time_t t, time_t max_relative, char *format)
 	      secs * 1.0 / TM_YEAR);
 }
 
-void cgit_print_http_headers(struct cgit_context *ctx)
+void cgit_print_http_headers(void)
 {
-	if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
+	if (ctx.env.no_http && !strcmp(ctx.env.no_http, "1"))
 		return;
 
-	if (ctx->page.status)
-		htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
-	if (ctx->page.mimetype && ctx->page.charset)
-		htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
-		      ctx->page.charset);
-	else if (ctx->page.mimetype)
-		htmlf("Content-Type: %s\n", ctx->page.mimetype);
-	if (ctx->page.size)
-		htmlf("Content-Length: %ld\n", ctx->page.size);
-	if (ctx->page.filename)
+	if (ctx.page.status)
+		htmlf("Status: %d %s\n", ctx.page.status, ctx.page.statusmsg);
+	if (ctx.page.mimetype && ctx.page.charset)
+		htmlf("Content-Type: %s; charset=%s\n", ctx.page.mimetype,
+		      ctx.page.charset);
+	else if (ctx.page.mimetype)
+		htmlf("Content-Type: %s\n", ctx.page.mimetype);
+	if (ctx.page.size)
+		htmlf("Content-Length: %zd\n", ctx.page.size);
+	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));
-	if (ctx->page.etag)
-		htmlf("ETag: \"%s\"\n", ctx->page.etag);
+		      ctx.page.filename);
+	if (!ctx.env.authenticated)
+		html("Cache-Control: no-cache, no-store\n");
+	htmlf("Last-Modified: %s\n", http_date(ctx.page.modified));
+	htmlf("Expires: %s\n", http_date(ctx.page.expires));
+	if (ctx.page.etag)
+		htmlf("ETag: \"%s\"\n", ctx.page.etag);
 	html("\n");
-	if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
+	if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
 		exit(0);
 }
 
-void cgit_print_docstart(struct cgit_context *ctx)
+void cgit_print_docstart(void)
 {
-	if (ctx->cfg.embedded) {
-		if (ctx->cfg.header)
-			html_include(ctx->cfg.header);
+	if (ctx.cfg.embedded) {
+		if (ctx.cfg.header)
+			html_include(ctx.cfg.header);
 		return;
 	}
 
-	char *host = cgit_hosturl();
+	const 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_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);
+	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_attr(ctx.cfg.css);
 	html("'/>\n");
-	if (ctx->cfg.favicon) {
+	if (ctx.cfg.favicon) {
 		html("<link rel='shortcut icon' href='");
-		html_attr(ctx->cfg.favicon);
+		html_attr(ctx.cfg.favicon);
 		html("'/>\n");
 	}
-	if (host && ctx->repo) {
+	if (host && ctx.repo && ctx.qry.head) {
+		struct strbuf sb = STRBUF_INIT;
+		strbuf_addf(&sb, "h=%s", ctx.qry.head);
+
 		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_attr(cgit_fileurl(ctx.repo->url, "atom", ctx.qry.vpath,
+				       sb.buf));
 		html("' type='application/atom+xml'/>\n");
+		strbuf_release(&sb);
 	}
-	if (ctx->cfg.head_include)
-		html_include(ctx->cfg.head_include);
+	if (ctx.cfg.head_include)
+		html_include(ctx.cfg.head_include);
 	html("</head>\n");
 	html("<body>\n");
-	if (ctx->cfg.header)
-		html_include(ctx->cfg.header);
+	if (ctx.cfg.header)
+		html_include(ctx.cfg.header);
 }
 
 void cgit_print_docend()
@@ -564,62 +728,25 @@ void cgit_print_docend()
 	html("</body>\n</html>\n");
 }
 
-int print_branch_option(const char *refname, const unsigned char *sha1,
-			int flags, void *cb_data)
+static int print_branch_option(const char *refname, const unsigned char *sha1,
+			       int flags, void *cb_data)
 {
 	char *name = (char *)refname;
 	html_option(name, name, ctx.qry.head);
 	return 0;
 }
 
-int print_archive_ref(const char *refname, const unsigned char *sha1,
-		       int flags, void *cb_data)
-{
-	struct tag *tag;
-	struct taginfo *info;
-	struct object *obj;
-	char buf[256], *url;
-	unsigned char fileid[20];
-	int *header = (int *)cb_data;
-
-	if (prefixcmp(refname, "refs/archives"))
-		return 0;
-	strncpy(buf, refname+14, sizeof(buf));
-	obj = parse_object(sha1);
-	if (!obj)
-		return 1;
-	if (obj->type == OBJ_TAG) {
-		tag = lookup_tag(sha1);
-		if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
-			return 0;
-		hashcpy(fileid, tag->tagged->sha1);
-	} else if (obj->type != OBJ_BLOB) {
-		return 0;
-	} else {
-		hashcpy(fileid, sha1);
-	}
-	if (!*header) {
-		html("<h1>download</h1>\n");
-		*header = 1;
-	}
-	url = cgit_pageurl(ctx.qry.repo, "blob",
-			   fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
-			       buf));
-	html_link_open(url, NULL, "menu");
-	html_txt(strlpart(buf, 20));
-	html_link_close();
-	return 0;
-}
-
-void cgit_add_hidden_formfields(int incl_head, int incl_search, char *page)
+void cgit_add_hidden_formfields(int incl_head, int incl_search,
+				const char *page)
 {
-	char *url;
-
 	if (!ctx.cfg.virtual_root) {
-		url = fmt("%s/%s", ctx.qry.repo, page);
-		if (ctx.qry.path)
-			url = fmt("%s/%s", url, ctx.qry.path);
-		html_hidden("url", url);
+		struct strbuf url = STRBUF_INIT;
+
+		strbuf_addf(&url, "%s/%s", ctx.qry.repo, page);
+		if (ctx.qry.vpath)
+			strbuf_addf(&url, "/%s", ctx.qry.vpath);
+		html_hidden("url", url.buf);
+		strbuf_release(&url);
 	}
 
 	if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
@@ -641,125 +768,159 @@ void cgit_add_hidden_formfields(int incl_head, int incl_search, char *page)
 	}
 }
 
-const char *fallback_cmd = "repolist";
+static const char *hc(const char *page)
+{
+	return strcmp(ctx.qry.page, page) ? NULL : "active";
+}
 
-char *hc(struct cgit_cmd *cmd, const char *page)
+static void cgit_print_path_crumbs(char *path)
 {
-	return (strcmp(cmd ? cmd->name : fallback_cmd, page) ? NULL : "active");
+	char *old_path = ctx.qry.path;
+	char *p = path, *q, *end = path + strlen(path);
+
+	ctx.qry.path = NULL;
+	cgit_self_link("root", NULL, NULL);
+	ctx.qry.path = p = path;
+	while (p < end) {
+		if (!(q = strchr(p, '/')))
+			q = end;
+		*q = '\0';
+		html_txt("/");
+		cgit_self_link(p, NULL, NULL);
+		if (q < end)
+			*q = '/';
+		p = q + 1;
+	}
+	ctx.qry.path = old_path;
 }
 
-static void print_header(struct cgit_context *ctx)
+static void print_header(void)
 {
+	char *logo = NULL, *logo_link = NULL;
+
 	html("<table id='header'>\n");
 	html("<tr>\n");
 
-	if (ctx->cfg.logo && ctx->cfg.logo[0] != 0) {
+	if (ctx.repo && ctx.repo->logo && *ctx.repo->logo)
+		logo = ctx.repo->logo;
+	else
+		logo = ctx.cfg.logo;
+	if (ctx.repo && ctx.repo->logo_link && *ctx.repo->logo_link)
+		logo_link = ctx.repo->logo_link;
+	else
+		logo_link = ctx.cfg.logo_link;
+	if (logo && *logo) {
 		html("<td class='logo' rowspan='2'><a href='");
-		if (ctx->cfg.logo_link)
-			html_attr(ctx->cfg.logo_link);
+		if (logo_link && *logo_link)
+			html_attr(logo_link);
 		else
 			html_attr(cgit_rooturl());
 		html("'><img src='");
-		html_attr(ctx->cfg.logo);
+		html_attr(logo);
 		html("' alt='cgit logo'/></a></td>\n");
 	}
 
 	html("<td class='main'>");
-	if (ctx->repo) {
-		cgit_index_link("index", NULL, NULL, NULL, 0);
+	if (ctx.repo) {
+		cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
 		html(" : ");
-		cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
-		html("</td><td class='form'>");
-		html("<form method='get' action=''>\n");
-		cgit_add_hidden_formfields(0, 1, ctx->qry.page);
-		html("<select name='h' onchange='this.form.submit();'>\n");
-		for_each_branch_ref(print_branch_option, ctx->qry.head);
-		html("</select> ");
-		html("<input type='submit' name='' value='switch'/>");
-		html("</form>");
+		cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
+		if (ctx.env.authenticated) {
+			html("</td><td class='form'>");
+			html("<form method='get' action=''>\n");
+			cgit_add_hidden_formfields(0, 1, ctx.qry.page);
+			html("<select name='h' onchange='this.form.submit();'>\n");
+			for_each_branch_ref(print_branch_option, ctx.qry.head);
+			html("</select> ");
+			html("<input type='submit' name='' value='switch'/>");
+			html("</form>");
+		}
 	} else
-		html_txt(ctx->cfg.root_title);
+		html_txt(ctx.cfg.root_title);
 	html("</td></tr>\n");
 
 	html("<tr><td class='sub'>");
-	if (ctx->repo) {
-		html_txt(ctx->repo->desc);
+	if (ctx.repo) {
+		html_txt(ctx.repo->desc);
 		html("</td><td class='sub right'>");
-		html_txt(ctx->repo->owner);
+		html_txt(ctx.repo->owner);
 	} else {
-		if (ctx->cfg.root_desc)
-			html_txt(ctx->cfg.root_desc);
-		else if (ctx->cfg.index_info)
-			html_include(ctx->cfg.index_info);
+		if (ctx.cfg.root_desc)
+			html_txt(ctx.cfg.root_desc);
+		else if (ctx.cfg.index_info)
+			html_include(ctx.cfg.index_info);
 	}
 	html("</td></tr></table>\n");
 }
 
-void cgit_print_pageheader(struct cgit_context *ctx)
+void cgit_print_pageheader(void)
 {
-	struct cgit_cmd *cmd = cgit_get_cmd(ctx);
-
-	if (!cmd && ctx->repo)
-		fallback_cmd = "summary";
-
 	html("<div id='cgit'>");
-	if (!ctx->cfg.noheader)
-		print_header(ctx);
+	if (!ctx.env.authenticated || !ctx.cfg.noheader)
+		print_header();
 
 	html("<table class='tabs'><tr><td>\n");
-	if (ctx->repo) {
-		cgit_summary_link("summary", NULL, hc(cmd, "summary"),
-				  ctx->qry.head);
-		cgit_refs_link("refs", NULL, hc(cmd, "refs"), ctx->qry.head,
-			       ctx->qry.sha1, NULL);
-		cgit_log_link("log", NULL, hc(cmd, "log"), ctx->qry.head,
-			      NULL, NULL, 0, NULL, NULL, ctx->qry.showmsg);
-		cgit_tree_link("tree", NULL, hc(cmd, "tree"), ctx->qry.head,
-			       ctx->qry.sha1, NULL);
-		cgit_commit_link("commit", NULL, hc(cmd, "commit"),
-				 ctx->qry.head, ctx->qry.sha1, 0);
-		cgit_diff_link("diff", NULL, hc(cmd, "diff"), ctx->qry.head,
-			       ctx->qry.sha1, ctx->qry.sha2, NULL, 0);
-		if (ctx->repo->max_stats)
-			cgit_stats_link("stats", NULL, hc(cmd, "stats"),
-					ctx->qry.head, NULL);
-		if (ctx->repo->readme)
+	if (ctx.env.authenticated && ctx.repo) {
+		if (ctx.repo->readme.nr)
 			reporevlink("about", "about", NULL,
-				    hc(cmd, "about"), ctx->qry.head, NULL,
+				    hc("about"), ctx.qry.head, NULL,
 				    NULL);
+		cgit_summary_link("summary", NULL, hc("summary"),
+				  ctx.qry.head);
+		cgit_refs_link("refs", NULL, hc("refs"), ctx.qry.head,
+			       ctx.qry.sha1, NULL);
+		cgit_log_link("log", NULL, hc("log"), ctx.qry.head,
+			      NULL, ctx.qry.vpath, 0, NULL, NULL,
+			      ctx.qry.showmsg);
+		cgit_tree_link("tree", NULL, hc("tree"), ctx.qry.head,
+			       ctx.qry.sha1, ctx.qry.vpath);
+		cgit_commit_link("commit", NULL, hc("commit"),
+				 ctx.qry.head, ctx.qry.sha1, ctx.qry.vpath, 0);
+		cgit_diff_link("diff", NULL, hc("diff"), ctx.qry.head,
+			       ctx.qry.sha1, ctx.qry.sha2, ctx.qry.vpath, 0);
+		if (ctx.repo->max_stats)
+			cgit_stats_link("stats", NULL, hc("stats"),
+					ctx.qry.head, ctx.qry.vpath);
 		html("</td><td class='form'>");
 		html("<form class='right' method='get' action='");
-		if (ctx->cfg.virtual_root)
-			html_url_path(cgit_fileurl(ctx->qry.repo, "log",
-						   ctx->qry.path, NULL));
+		if (ctx.cfg.virtual_root)
+			html_url_path(cgit_fileurl(ctx.qry.repo, "log",
+						   ctx.qry.vpath, NULL));
 		html("'>\n");
 		cgit_add_hidden_formfields(1, 0, "log");
 		html("<select name='qt'>\n");
-		html_option("grep", "log msg", ctx->qry.grep);
-		html_option("author", "author", ctx->qry.grep);
-		html_option("committer", "committer", ctx->qry.grep);
+		html_option("grep", "log msg", ctx.qry.grep);
+		html_option("author", "author", ctx.qry.grep);
+		html_option("committer", "committer", ctx.qry.grep);
+		html_option("range", "range", ctx.qry.grep);
 		html("</select>\n");
 		html("<input class='txt' type='text' size='10' name='q' value='");
-		html_attr(ctx->qry.search);
+		html_attr(ctx.qry.search);
 		html("'/>\n");
 		html("<input type='submit' value='search'/>\n");
 		html("</form>\n");
-	} else {
-		site_link(NULL, "index", NULL, hc(cmd, "repolist"), NULL, 0);
-		if (ctx->cfg.root_readme)
-			site_link("about", "about", NULL, hc(cmd, "about"),
-				  NULL, 0);
+	} else if (ctx.env.authenticated) {
+		site_link(NULL, "index", NULL, hc("repolist"), NULL, NULL, 0);
+		if (ctx.cfg.root_readme)
+			site_link("about", "about", NULL, hc("about"),
+				  NULL, NULL, 0);
 		html("</td><td class='form'>");
 		html("<form method='get' action='");
 		html_attr(cgit_rooturl());
 		html("'>\n");
 		html("<input type='text' name='q' size='10' value='");
-		html_attr(ctx->qry.search);
+		html_attr(ctx.qry.search);
 		html("'/>\n");
 		html("<input type='submit' value='search'/>\n");
 		html("</form>");
 	}
 	html("</td></tr></table>\n");
+	if (ctx.env.authenticated && ctx.qry.vpath) {
+		html("<div class='path'>");
+		html("path: ");
+		cgit_print_path_crumbs(ctx.qry.vpath);
+		html("</div>");
+	}
 	html("<div class='content'>");
 }
 
@@ -782,19 +943,23 @@ void cgit_print_snapshot_links(const char *repo, const char *head,
 			       const char *hex, int snapshots)
 {
 	const struct cgit_snapshot_format* f;
-	char *prefix;
-    	char *filename;
+	struct strbuf filename = STRBUF_INIT;
+	size_t prefixlen;
 	unsigned char sha1[20];
 
 	if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
 	    (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
 		hex++;
-	prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
+	strbuf_addf(&filename, "%s-%s", cgit_repobasename(repo), hex);
+	prefixlen = filename.len;
 	for (f = cgit_snapshot_formats; f->suffix; f++) {
 		if (!(snapshots & f->bit))
 			continue;
-		filename = fmt("%s%s", prefix, f->suffix);
-		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
+		strbuf_setlen(&filename, prefixlen);
+		strbuf_addstr(&filename, f->suffix);
+		cgit_snapshot_link(filename.buf, NULL, NULL, NULL, NULL,
+				   filename.buf);
 		html("<br/>");
 	}
+	strbuf_release(&filename);
 }