Merge branch 'lh/cleanup'

* lh/cleanup: (21 commits)
  Reset ctx.repo to NULL when the config parser is finished
  Move cgit_parse_query() from parsing.c to html.c as http_parse_querystring()
  Move function for configfile parsing into configfile.[ch]
  Add cache.h
  Remove global and obsolete cgit_cmd
  Makefile: copy the QUIET constructs from the Makefile in git.git
  Move cgit_version from shared.c to cgit.c
  Makefile: autobuild dependency rules
  Initial Makefile cleanup
  Move non-generic functions from shared.c to cgit.c
  Add ui-shared.h
  Add separate header-files for each page/view
  Refactor snapshot support
  Add command dispatcher
  Remove obsolete cacheitem parameter to ui-functions
  Add struct cgit_page to cgit_context
  Introduce html.h
  Improve initialization of git directory
  Move cgit_repo into cgit_context
  Add all config variables into struct cgit_context
  ...

38 files changed, 1379 insertions, 1117 deletions

diff --git a/.gitignore b/.gitignore
index aa36ff7..1e016e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5 +5,2 @@ VERSION
 *.o
+*.d
diff --git a/Makefile b/Makefile
index 8bf47f2..931c60e 100644
--- a/Makefile
+++ b/Makefile
@@ -14,9 +14,58 @@ GIT_URL = http://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.bz2
 
+#
+# Define a way to invoke make in subdirs quietly, shamelessly ripped
+# from git.git
+#
+QUIET_SUBDIR0  = +$(MAKE) -C # space to separate -C and subdir
+QUIET_SUBDIR1  =
 
-EXTLIBS = git/libgit.a git/xdiff/lib.a -lz -lcrypto
-OBJECTS = shared.o cache.o parsing.o html.o ui-shared.o ui-repolist.o \
-	ui-summary.o ui-log.o ui-tree.o ui-commit.o ui-diff.o \
-	ui-snapshot.o ui-blob.o ui-tag.o ui-refs.o ui-patch.o
+ifneq ($(findstring $(MAKEFLAGS),w),w)
+PRINT_DIR = --no-print-directory
+else # "make -w"
+NO_SUBDIR = :
+endif
+
+ifndef V
+	QUIET_CC       = @echo '   ' CC $@;
+	QUIET_MM       = @echo '   ' MM $@;
+	QUIET_SUBDIR0  = +@subdir=
+	QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
+			 $(MAKE) $(PRINT_DIR) -C $$subdir
+endif
+
+#
+# Define a pattern rule for automatic dependency building
+#
+%.d: %.c
+	$(QUIET_MM)$(CC) $(CFLAGS) -MM $< | sed -e 's/\($*\)\.o:/\1.o $@:/g' >$@
+
+#
+# Define a pattern rule for silent object building
+#
+%.o: %.c
+	$(QUIET_CC)$(CC) -o $*.o -c $(CFLAGS) $<
 
 
+EXTLIBS = git/libgit.a git/xdiff/lib.a -lz -lcrypto
+OBJECTS =
+OBJECTS += cache.o
+OBJECTS += cgit.o
+OBJECTS += cmd.o
+OBJECTS += configfile.o
+OBJECTS += html.o
+OBJECTS += parsing.o
+OBJECTS += shared.o
+OBJECTS += ui-blob.o
+OBJECTS += ui-commit.o
+OBJECTS += ui-diff.o
+OBJECTS += ui-log.o
+OBJECTS += ui-patch.o
+OBJECTS += ui-refs.o
+OBJECTS += ui-repolist.o
+OBJECTS += ui-shared.o
+OBJECTS += ui-snapshot.o
+OBJECTS += ui-summary.o
+OBJECTS += ui-tag.o
+OBJECTS += ui-tree.o
+
 ifdef NEEDS_LIBICONV
@@ -43,6 +92,10 @@ CFLAGS += -DCGIT_CACHE_ROOT='"$(CACHE_ROOT)"'
 
-cgit: cgit.c $(OBJECTS)
-	$(CC) $(CFLAGS) cgit.c -o cgit $(OBJECTS) $(EXTLIBS)
+cgit: $(OBJECTS)
+	$(QUIET_CC)$(CC) $(CFLAGS) -o cgit $(OBJECTS) $(EXTLIBS)
+
+$(OBJECTS): git/xdiff/lib.a git/libgit.a
+
+cgit.o: VERSION
 
-$(OBJECTS): cgit.h git/xdiff/lib.a git/libgit.a VERSION
+-include $(OBJECTS:.o=.d)
 
@@ -53,7 +106,7 @@ git/libgit.a: | git
 git:
-	cd git && $(MAKE) xdiff/lib.a
-	cd git && $(MAKE) libgit.a
+	$(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) xdiff/lib.a
+	$(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) libgit.a
 
 test: all
-	$(MAKE) -C tests
+	$(QUIET_SUBDIR0)tests $(QUIET_SUBDIR1) all
 
@@ -71,3 +124,3 @@ uninstall:
 clean:
-	rm -f cgit VERSION *.o
+	rm -f cgit VERSION *.o *.d
 	cd git && $(MAKE) clean
diff --git a/cache.c b/cache.c
index 372e38d..89f7ecd 100644
--- a/cache.c
+++ b/cache.c
@@ -9,2 +9,3 @@
 #include "cgit.h"
+#include "cache.h"
 
@@ -46,3 +47,3 @@ int cache_create_dirs()
 
-	path = fmt("%s", cgit_cache_root);
+	path = fmt("%s", ctx.cfg.cache_root);
 	if (mkdir(path, S_IRWXU) && errno!=EEXIST)
@@ -50,7 +51,7 @@ int cache_create_dirs()
 
-	if (!cgit_repo)
+	if (!ctx.repo)
 		return 0;
 
-	path = fmt("%s/%s", cgit_cache_root,
-		   cache_safe_filename(cgit_repo->url));
+	path = fmt("%s/%s", ctx.cfg.cache_root,
+		   cache_safe_filename(ctx.repo->url));
 
@@ -59,6 +60,6 @@ int cache_create_dirs()
 
-	if (cgit_query_page) {
-		path = fmt("%s/%s/%s", cgit_cache_root,
-			   cache_safe_filename(cgit_repo->url),
-			   cgit_query_page);
+	if (ctx.qry.page) {
+		path = fmt("%s/%s/%s", ctx.cfg.cache_root,
+			   cache_safe_filename(ctx.repo->url),
+			   ctx.qry.page);
 		if (mkdir(path, S_IRWXU) && errno!=EEXIST)
@@ -76,3 +77,3 @@ int cache_refill_overdue(const char *lockfile)
 	else
-		return (time(NULL) - st.st_mtime > cgit_cache_max_create_time);
+		return (time(NULL) - st.st_mtime > ctx.cfg.cache_max_create_time);
 }
@@ -85,3 +86,3 @@ int cache_lock(struct cacheitem *item)
  top:
-	if (++i > cgit_max_lock_attempts)
+	if (++i > ctx.cfg.max_lock_attempts)
 		die("cache_lock: unable to lock %s: %s",
diff --git a/cache.h b/cache.h
new file mode 100644
index 0000000..4dcbea3
--- a/dev/null
+++ b/cache.h
@@ -0,0 +1,23 @@
+/*
+ * Since git has it's own cache.h which we include,
+ * lets test on CGIT_CACHE_H to avoid confusion
+ */
+
+#ifndef CGIT_CACHE_H
+#define CGIT_CACHE_H
+
+struct cacheitem {
+	char *name;
+	struct stat st;
+	int ttl;
+	int fd;
+};
+
+extern char *cache_safe_filename(const char *unsafe);
+extern int cache_lock(struct cacheitem *item);
+extern int cache_unlock(struct cacheitem *item);
+extern int cache_cancel_lock(struct cacheitem *item);
+extern int cache_exist(struct cacheitem *item);
+extern int cache_expired(struct cacheitem *item);
+
+#endif /* CGIT_CACHE_H */
diff --git a/cgit.c b/cgit.c
index e8acc03..6ec763f 100644
--- a/cgit.c
+++ b/cgit.c
@@ -9,2 +9,159 @@
 #include "cgit.h"
+#include "cache.h"
+#include "cmd.h"
+#include "configfile.h"
+#include "html.h"
+#include "ui-shared.h"
+
+const char *cgit_version = CGIT_VERSION;
+
+void config_cb(const char *name, const char *value)
+{
+	if (!strcmp(name, "root-title"))
+		ctx.cfg.root_title = xstrdup(value);
+	else if (!strcmp(name, "css"))
+		ctx.cfg.css = xstrdup(value);
+	else if (!strcmp(name, "logo"))
+		ctx.cfg.logo = xstrdup(value);
+	else if (!strcmp(name, "index-header"))
+		ctx.cfg.index_header = xstrdup(value);
+	else if (!strcmp(name, "index-info"))
+		ctx.cfg.index_info = xstrdup(value);
+	else if (!strcmp(name, "logo-link"))
+		ctx.cfg.logo_link = xstrdup(value);
+	else if (!strcmp(name, "module-link"))
+		ctx.cfg.module_link = xstrdup(value);
+	else if (!strcmp(name, "virtual-root")) {
+		ctx.cfg.virtual_root = trim_end(value, '/');
+		if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
+			ctx.cfg.virtual_root = "";
+	} else if (!strcmp(name, "nocache"))
+		ctx.cfg.nocache = atoi(value);
+	else if (!strcmp(name, "snapshots"))
+		ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
+	else if (!strcmp(name, "enable-index-links"))
+		ctx.cfg.enable_index_links = atoi(value);
+	else if (!strcmp(name, "enable-log-filecount"))
+		ctx.cfg.enable_log_filecount = atoi(value);
+	else if (!strcmp(name, "enable-log-linecount"))
+		ctx.cfg.enable_log_linecount = atoi(value);
+	else if (!strcmp(name, "cache-root"))
+		ctx.cfg.cache_root = xstrdup(value);
+	else if (!strcmp(name, "cache-root-ttl"))
+		ctx.cfg.cache_root_ttl = atoi(value);
+	else if (!strcmp(name, "cache-repo-ttl"))
+		ctx.cfg.cache_repo_ttl = atoi(value);
+	else if (!strcmp(name, "cache-static-ttl"))
+		ctx.cfg.cache_static_ttl = atoi(value);
+	else if (!strcmp(name, "cache-dynamic-ttl"))
+		ctx.cfg.cache_dynamic_ttl = atoi(value);
+	else if (!strcmp(name, "max-message-length"))
+		ctx.cfg.max_msg_len = atoi(value);
+	else if (!strcmp(name, "max-repodesc-length"))
+		ctx.cfg.max_repodesc_len = atoi(value);
+	else if (!strcmp(name, "max-commit-count"))
+		ctx.cfg.max_commit_count = atoi(value);
+	else if (!strcmp(name, "summary-log"))
+		ctx.cfg.summary_log = atoi(value);
+	else if (!strcmp(name, "summary-branches"))
+		ctx.cfg.summary_branches = atoi(value);
+	else if (!strcmp(name, "summary-tags"))
+		ctx.cfg.summary_tags = atoi(value);
+	else if (!strcmp(name, "agefile"))
+		ctx.cfg.agefile = xstrdup(value);
+	else if (!strcmp(name, "renamelimit"))
+		ctx.cfg.renamelimit = atoi(value);
+	else if (!strcmp(name, "robots"))
+		ctx.cfg.robots = xstrdup(value);
+	else if (!strcmp(name, "clone-prefix"))
+		ctx.cfg.clone_prefix = xstrdup(value);
+	else if (!strcmp(name, "repo.group"))
+		ctx.cfg.repo_group = xstrdup(value);
+	else if (!strcmp(name, "repo.url"))
+		ctx.repo = cgit_add_repo(value);
+	else if (!strcmp(name, "repo.name"))
+		ctx.repo->name = xstrdup(value);
+	else if (ctx.repo && !strcmp(name, "repo.path"))
+		ctx.repo->path = trim_end(value, '/');
+	else if (ctx.repo && !strcmp(name, "repo.clone-url"))
+		ctx.repo->clone_url = xstrdup(value);
+	else if (ctx.repo && !strcmp(name, "repo.desc"))
+		ctx.repo->desc = xstrdup(value);
+	else if (ctx.repo && !strcmp(name, "repo.owner"))
+		ctx.repo->owner = xstrdup(value);
+	else if (ctx.repo && !strcmp(name, "repo.defbranch"))
+		ctx.repo->defbranch = xstrdup(value);
+	else if (ctx.repo && !strcmp(name, "repo.snapshots"))
+		ctx.repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */
+	else if (ctx.repo && !strcmp(name, "repo.enable-log-filecount"))
+		ctx.repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
+	else if (ctx.repo && !strcmp(name, "repo.enable-log-linecount"))
+		ctx.repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
+	else if (ctx.repo && !strcmp(name, "repo.module-link"))
+		ctx.repo->module_link= xstrdup(value);
+	else if (ctx.repo && !strcmp(name, "repo.readme") && value != NULL) {
+		if (*value == '/')
+			ctx.repo->readme = xstrdup(value);
+		else
+			ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
+	} else if (!strcmp(name, "include"))
+		parse_configfile(value, config_cb);
+}
+
+static void querystring_cb(const char *name, const char *value)
+{
+	if (!strcmp(name,"r")) {
+		ctx.qry.repo = xstrdup(value);
+		ctx.repo = cgit_get_repoinfo(value);
+	} else if (!strcmp(name, "p")) {
+		ctx.qry.page = xstrdup(value);
+	} else if (!strcmp(name, "url")) {
+		cgit_parse_url(value);
+	} else if (!strcmp(name, "qt")) {
+		ctx.qry.grep = xstrdup(value);
+	} else if (!strcmp(name, "q")) {
+		ctx.qry.search = xstrdup(value);
+	} else if (!strcmp(name, "h")) {
+		ctx.qry.head = xstrdup(value);
+		ctx.qry.has_symref = 1;
+	} else if (!strcmp(name, "id")) {
+		ctx.qry.sha1 = xstrdup(value);
+		ctx.qry.has_sha1 = 1;
+	} else if (!strcmp(name, "id2")) {
+		ctx.qry.sha2 = xstrdup(value);
+		ctx.qry.has_sha1 = 1;
+	} else if (!strcmp(name, "ofs")) {
+		ctx.qry.ofs = atoi(value);
+	} else if (!strcmp(name, "path")) {
+		ctx.qry.path = trim_end(value, '/');
+	} else if (!strcmp(name, "name")) {
+		ctx.qry.name = xstrdup(value);
+	}
+}
+
+static void prepare_context(struct cgit_context *ctx)
+{
+	memset(ctx, 0, sizeof(ctx));
+	ctx->cfg.agefile = "info/web/last-modified";
+	ctx->cfg.cache_dynamic_ttl = 5;
+	ctx->cfg.cache_max_create_time = 5;
+	ctx->cfg.cache_repo_ttl = 5;
+	ctx->cfg.cache_root = CGIT_CACHE_ROOT;
+	ctx->cfg.cache_root_ttl = 5;
+	ctx->cfg.cache_static_ttl = -1;
+	ctx->cfg.css = "/cgit.css";
+	ctx->cfg.logo = "/git-logo.png";
+	ctx->cfg.max_commit_count = 50;
+	ctx->cfg.max_lock_attempts = 5;
+	ctx->cfg.max_msg_len = 60;
+	ctx->cfg.max_repodesc_len = 60;
+	ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
+	ctx->cfg.renamelimit = -1;
+	ctx->cfg.robots = "index, nofollow";
+	ctx->cfg.root_title = "Git repository browser";
+	ctx->cfg.script_name = CGIT_SCRIPT_NAME;
+	ctx->page.mimetype = "text/html";
+	ctx->page.charset = PAGE_ENCODING;
+	ctx->page.filename = NULL;
+}
 
@@ -12,7 +169,9 @@ static int cgit_prepare_cache(struct cacheitem *item)
 {
-	if (!cgit_repo && cgit_query_repo) {
-		char *title = fmt("%s - %s", cgit_root_title, "Bad request");
-		cgit_print_docstart(title, item);
-		cgit_print_pageheader(title, 0);
-		cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
+	if (!ctx.repo && ctx.qry.repo) {
+		ctx.page.title = fmt("%s - %s", ctx.cfg.root_title,
+				      "Bad request");
+		cgit_print_http_headers(&ctx);
+		cgit_print_docstart(&ctx);
+		cgit_print_pageheader(&ctx);
+		cgit_print_error(fmt("Unknown repo: %s", ctx.qry.repo));
 		cgit_print_docend();
@@ -21,5 +180,5 @@ static int cgit_prepare_cache(struct cacheitem *item)
 
-	if (!cgit_repo) {
-		item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
-		item->ttl = cgit_cache_root_ttl;
+	if (!ctx.repo) {
+		item->name = xstrdup(fmt("%s/index.html", ctx.cfg.cache_root));
+		item->ttl = ctx.cfg.cache_root_ttl;
 		return 1;
@@ -27,18 +186,18 @@ static int cgit_prepare_cache(struct cacheitem *item)
 
-	if (!cgit_cmd) {
-		item->name = xstrdup(fmt("%s/%s/index.%s.html", cgit_cache_root,
-					 cache_safe_filename(cgit_repo->url),
-					 cache_safe_filename(cgit_querystring)));
-		item->ttl = cgit_cache_repo_ttl;
+	if (!ctx.qry.page) {
+		item->name = xstrdup(fmt("%s/%s/index.%s.html", ctx.cfg.cache_root,
+					 cache_safe_filename(ctx.repo->url),
+					 cache_safe_filename(ctx.qry.raw)));
+		item->ttl = ctx.cfg.cache_repo_ttl;
 	} else {
-		item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
-					 cache_safe_filename(cgit_repo->url),
-					 cgit_query_page,
-					 cache_safe_filename(cgit_querystring)));
-		if (cgit_query_has_symref)
-			item->ttl = cgit_cache_dynamic_ttl;
-		else if (cgit_query_has_sha1)
-			item->ttl = cgit_cache_static_ttl;
+		item->name = xstrdup(fmt("%s/%s/%s/%s.html", ctx.cfg.cache_root,
+					 cache_safe_filename(ctx.repo->url),
+					 ctx.qry.page,
+					 cache_safe_filename(ctx.qry.raw)));
+		if (ctx.qry.has_symref)
+			item->ttl = ctx.cfg.cache_dynamic_ttl;
+		else if (ctx.qry.has_sha1)
+			item->ttl = ctx.cfg.cache_static_ttl;
 		else
-			item->ttl = cgit_cache_repo_ttl;
+			item->ttl = ctx.cfg.cache_repo_ttl;
 	}
@@ -66,3 +225,3 @@ int find_current_ref(const char *refname, const unsigned char *sha1,
 
-char *find_default_branch(struct repoinfo *repo)
+char *find_default_branch(struct cgit_repo *repo)
 {
@@ -80,50 +239,64 @@ char *find_default_branch(struct repoinfo *repo)
 
-static void cgit_print_repo_page(struct cacheitem *item)
+static int prepare_repo_cmd(struct cgit_context *ctx)
 {
-	char *title, *tmp;
-	int show_search;
+	char *tmp;
 	unsigned char sha1[20];
-
-	if (chdir(cgit_repo->path)) {
-		title = fmt("%s - %s", cgit_root_title, "Bad request");
-		cgit_print_docstart(title, item);
-		cgit_print_pageheader(title, 0);
-		cgit_print_error(fmt("Unable to scan repository: %s",
-				     strerror(errno)));
+	int nongit = 0;
+
+	setenv("GIT_DIR", ctx->repo->path, 1);
+	setup_git_directory_gently(&nongit);
+	if (nongit) {
+		ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
+				      "config error");
+		tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
+		ctx->repo = NULL;
+		cgit_print_http_headers(ctx);
+		cgit_print_docstart(ctx);
+		cgit_print_pageheader(ctx);
+		cgit_print_error(tmp);
 		cgit_print_docend();
-		return;
+		return 1;
 	}
+	ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
 
-	title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
-	show_search = 0;
-	setenv("GIT_DIR", cgit_repo->path, 1);
-
-	if (!cgit_query_head) {
-		cgit_query_head = xstrdup(find_default_branch(cgit_repo));
-		cgit_repo->defbranch = cgit_query_head;
+	if (!ctx->qry.head) {
+		ctx->qry.head = xstrdup(find_default_branch(ctx->repo));
+		ctx->repo->defbranch = ctx->qry.head;
 	}
 
-	if (!cgit_query_head) {
-		cgit_print_docstart(title, item);
-		cgit_print_pageheader(title, 0);
+	if (!ctx->qry.head) {
+		cgit_print_http_headers(ctx);
+		cgit_print_docstart(ctx);
+		cgit_print_pageheader(ctx);
 		cgit_print_error("Repository seems to be empty");
 		cgit_print_docend();
-		return;
+		return 1;
 	}
 
-	if (get_sha1(cgit_query_head, sha1)) {
-		tmp = xstrdup(cgit_query_head);
-		cgit_query_head = cgit_repo->defbranch;
-		cgit_print_docstart(title, item);
-		cgit_print_pageheader(title, 0);
+	if (get_sha1(ctx->qry.head, sha1)) {
+		tmp = xstrdup(ctx->qry.head);
+		ctx->qry.head = ctx->repo->defbranch;
+		cgit_print_http_headers(ctx);
+		cgit_print_docstart(ctx);
+		cgit_print_pageheader(ctx);
 		cgit_print_error(fmt("Invalid branch: %s", tmp));
 		cgit_print_docend();
-		return;
+		return 1;
 	}
+	return 0;
+}
 
-	if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) {
-		cgit_print_snapshot(item, cgit_query_head, cgit_query_sha1,
-				    cgit_repobasename(cgit_repo->url),
-				    cgit_query_path,
-				    cgit_repo->snapshots );
+static void process_request(struct cgit_context *ctx)
+{
+	struct cgit_cmd *cmd;
+
+	cmd = cgit_get_cmd(ctx);
+	if (!cmd) {
+		ctx->page.title = "cgit error";
+		ctx->repo = NULL;
+		cgit_print_http_headers(ctx);
+		cgit_print_docstart(ctx);
+		cgit_print_pageheader(ctx);
+		cgit_print_error("Invalid request");
+		cgit_print_docend();
 		return;
@@ -131,48 +304,23 @@ static void cgit_print_repo_page(struct cacheitem *item)
 
-	if (cgit_cmd == CMD_PATCH) {
-		cgit_print_patch(cgit_query_sha1, item);
+	if (cmd->want_repo && prepare_repo_cmd(ctx))
 		return;
-	}
 
-	if (cgit_cmd == CMD_BLOB) {
-		cgit_print_blob(item, cgit_query_sha1, cgit_query_path);
-		return;
+	if (cmd->want_layout) {
+		cgit_print_http_headers(ctx);
+		cgit_print_docstart(ctx);
+		cgit_print_pageheader(ctx);
 	}
 
-	show_search = (cgit_cmd == CMD_LOG);
-	cgit_print_docstart(title, item);
-	if (!cgit_cmd) {
-		cgit_print_pageheader("summary", show_search);
-		cgit_print_summary();
+	cmd->fn(ctx);
+
+	if (cmd->want_layout)
 		cgit_print_docend();
-		return;
-	}
+}
 
-	cgit_print_pageheader(cgit_query_page, show_search);
-
-	switch(cgit_cmd) {
-	case CMD_LOG:
-		cgit_print_log(cgit_query_sha1, cgit_query_ofs,
-			       cgit_max_commit_count, cgit_query_grep, cgit_query_search,
-			       cgit_query_path, 1);
-		break;
-	case CMD_TREE:
-		cgit_print_tree(cgit_query_sha1, cgit_query_path);
-		break;
-	case CMD_COMMIT:
-		cgit_print_commit(cgit_query_sha1);
-		break;
-	case CMD_REFS:
-		cgit_print_refs();
-		break;
-	case CMD_TAG:
-		cgit_print_tag(cgit_query_sha1);
-		break;
-	case CMD_DIFF:
-		cgit_print_diff(cgit_query_sha1, cgit_query_sha2, cgit_query_path);
-		break;
-	default:
-		cgit_print_error("Invalid request");
-	}
-	cgit_print_docend();
+static long ttl_seconds(long ttl)
+{
+	if (ttl<0)
+		return 60 * 60 * 24 * 365;
+	else
+		return ttl * 60;
 }
@@ -181,8 +329,4 @@ static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 {
-	static char buf[PATH_MAX];
 	int stdout2;
 
-	getcwd(buf, sizeof(buf));
-	item->st.st_mtime = time(NULL);
-
 	if (use_cache) {
@@ -194,6 +338,5 @@ static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 
-	if (cgit_repo)
-		cgit_print_repo_page(item);
-	else
-		cgit_print_repolist(item);
+	ctx.page.modified = time(NULL);
+	ctx.page.expires = ctx.page.modified + ttl_seconds(item->ttl);
+	process_request(&ctx);
 
@@ -205,4 +348,2 @@ static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 	}
-
-	chdir(buf);
 }
@@ -214,3 +355,3 @@ static void cgit_check_cache(struct cacheitem *item)
  top:
-	if (++i > cgit_max_lock_attempts) {
+	if (++i > ctx.cfg.max_lock_attempts) {
 		die("cgit_refresh_cache: unable to lock %s: %s",
@@ -260,26 +401,26 @@ static void cgit_parse_args(int argc, const char **argv)
 		if (!strncmp(argv[i], "--cache=", 8)) {
-			cgit_cache_root = xstrdup(argv[i]+8);
+			ctx.cfg.cache_root = xstrdup(argv[i]+8);
 		}
 		if (!strcmp(argv[i], "--nocache")) {
-			cgit_nocache = 1;
+			ctx.cfg.nocache = 1;
 		}
 		if (!strncmp(argv[i], "--query=", 8)) {
-			cgit_querystring = xstrdup(argv[i]+8);
+			ctx.qry.raw = xstrdup(argv[i]+8);
 		}
 		if (!strncmp(argv[i], "--repo=", 7)) {
-			cgit_query_repo = xstrdup(argv[i]+7);
+			ctx.qry.repo = xstrdup(argv[i]+7);
 		}
 		if (!strncmp(argv[i], "--page=", 7)) {
-			cgit_query_page = xstrdup(argv[i]+7);
+			ctx.qry.page = xstrdup(argv[i]+7);
 		}
 		if (!strncmp(argv[i], "--head=", 7)) {
-			cgit_query_head = xstrdup(argv[i]+7);
-			cgit_query_has_symref = 1;
+			ctx.qry.head = xstrdup(argv[i]+7);
+			ctx.qry.has_symref = 1;
 		}
 		if (!strncmp(argv[i], "--sha1=", 7)) {
-			cgit_query_sha1 = xstrdup(argv[i]+7);
-			cgit_query_has_sha1 = 1;
+			ctx.qry.sha1 = xstrdup(argv[i]+7);
+			ctx.qry.has_sha1 = 1;
 		}
 		if (!strncmp(argv[i], "--ofs=", 6)) {
-			cgit_query_ofs = atoi(argv[i]+6);
+			ctx.qry.ofs = atoi(argv[i]+6);
 		}
@@ -293,3 +434,3 @@ int main(int argc, const char **argv)
 
-	htmlfd = STDOUT_FILENO;
+	prepare_context(&ctx);
 	item.st.st_mtime = time(NULL);
@@ -299,14 +440,14 @@ int main(int argc, const char **argv)
 
-	cgit_read_config(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
-			 cgit_global_config_cb);
-	cgit_repo = NULL;
+	parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
+			 config_cb);
+	ctx.repo = NULL;
 	if (getenv("SCRIPT_NAME"))
-		cgit_script_name = xstrdup(getenv("SCRIPT_NAME"));
+		ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));
 	if (getenv("QUERY_STRING"))
-		cgit_querystring = xstrdup(getenv("QUERY_STRING"));
+		ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));
 	cgit_parse_args(argc, argv);
-	cgit_parse_query(cgit_querystring, cgit_querystring_cb);
+	http_parse_querystring(ctx.qry.raw, querystring_cb);
 	if (!cgit_prepare_cache(&item))
 		return 0;
-	if (cgit_nocache) {
+	if (ctx.cfg.nocache) {
 		cgit_fill_cache(&item, 0);
diff --git a/cgit.h b/cgit.h
index 66c40b9..ee8c716 100644
--- a/cgit.h
+++ b/cgit.h
@@ -22,15 +22,2 @@
 /*
- * The valid cgit repo-commands
- */
-#define CMD_LOG      1
-#define CMD_COMMIT   2
-#define CMD_DIFF     3
-#define CMD_TREE     4
-#define CMD_BLOB     5
-#define CMD_SNAPSHOT 6
-#define CMD_TAG      7
-#define CMD_REFS     8
-#define CMD_PATCH    9
-
-/*
  * Dateformats used on misc. pages
@@ -61,10 +48,3 @@ typedef void (*linediff_fn)(char *line, int len);
 
-struct cacheitem {
-	char *name;
-	struct stat st;
-	int ttl;
-	int fd;
-};
-
-struct repoinfo {
+struct cgit_repo {
 	char *url;
@@ -84,6 +64,6 @@ struct repoinfo {
 
-struct repolist {
+struct cgit_repolist {
 	int length;
 	int count;
-	struct repoinfo *repos;
+	struct cgit_repo *repos;
 };
@@ -125,64 +105,85 @@ struct reflist {
 
+struct cgit_query {
+	int has_symref;
+	int has_sha1;
+	char *raw;
+	char *repo;
+	char *page;
+	char *search;
+	char *grep;
+	char *head;
+	char *sha1;
+	char *sha2;
+	char *path;
+	char *name;
+	int   ofs;
+};
+
+struct cgit_config {
+	char *agefile;
+	char *cache_root;
+	char *clone_prefix;
+	char *css;
+	char *index_header;
+	char *index_info;
+	char *logo;
+	char *logo_link;
+	char *module_link;
+	char *repo_group;
+	char *robots;
+	char *root_title;
+	char *script_name;
+	char *virtual_root;
+	int cache_dynamic_ttl;
+	int cache_max_create_time;
+	int cache_repo_ttl;
+	int cache_root_ttl;
+	int cache_static_ttl;
+	int enable_index_links;
+	int enable_log_filecount;
+	int enable_log_linecount;
+	int max_commit_count;
+	int max_lock_attempts;
+	int max_msg_len;
+	int max_repodesc_len;
+	int nocache;
+	int renamelimit;
+	int snapshots;
+	int summary_branches;
+	int summary_log;
+	int summary_tags;
+};
+
+struct cgit_page {
+	time_t modified;
+	time_t expires;
+	char *mimetype;
+	char *charset;
+	char *filename;
+	char *title;
+};
+
+struct cgit_context {
+	struct cgit_query qry;
+	struct cgit_config cfg;
+	struct cgit_repo *repo;
+	struct cgit_page page;
+};
+
+struct cgit_snapshot_format {
+	const char *suffix;
+	const char *mimetype;
+	write_archive_fn_t write_func;
+	int bit;
+};
+
 extern const char *cgit_version;
 
-extern struct repolist cgit_repolist;
-extern struct repoinfo *cgit_repo;
-extern int cgit_cmd;
-
-extern char *cgit_root_title;
-extern char *cgit_css;
-extern char *cgit_logo;
-extern char *cgit_index_header;
-extern char *cgit_index_info;
-extern char *cgit_logo_link;
-extern char *cgit_module_link;
-extern char *cgit_agefile;
-extern char *cgit_virtual_root;
-extern char *cgit_script_name;
-extern char *cgit_cache_root;
-extern char *cgit_repo_group;
-extern char *cgit_robots;
-extern char *cgit_clone_prefix;
-
-extern int cgit_nocache;
-extern int cgit_snapshots;
-extern int cgit_enable_index_links;
-extern int cgit_enable_log_filecount;
-extern int cgit_enable_log_linecount;
-extern int cgit_max_lock_attempts;
-extern int cgit_cache_root_ttl;
-extern int cgit_cache_repo_ttl;
-extern int cgit_cache_dynamic_ttl;
-extern int cgit_cache_static_ttl;
-extern int cgit_cache_max_create_time;
-extern int cgit_summary_log;
-extern int cgit_summary_tags;
-extern int cgit_summary_branches;
-
-extern int cgit_max_msg_len;
-extern int cgit_max_repodesc_len;
-extern int cgit_max_commit_count;
-
-extern int cgit_query_has_symref;
-extern int cgit_query_has_sha1;
-
-extern char *cgit_querystring;
-extern char *cgit_query_repo;
-extern char *cgit_query_page;
-extern char *cgit_query_search;
-extern char *cgit_query_grep;
-extern char *cgit_query_head;
-extern char *cgit_query_sha1;
-extern char *cgit_query_sha2;
-extern char *cgit_query_path;
-extern char *cgit_query_name;
-extern int   cgit_query_ofs;
-
-extern int htmlfd;
-
-extern int cgit_get_cmd_index(const char *cmd);
-extern struct repoinfo *cgit_get_repoinfo(const char *url);
-extern void cgit_global_config_cb(const char *name, const char *value);
+extern struct cgit_repolist cgit_repolist;
+extern struct cgit_context ctx;
+extern const struct cgit_snapshot_format cgit_snapshot_formats[];
+
+extern struct cgit_repo *cgit_add_repo(const char *url);
+extern struct cgit_repo *cgit_get_repoinfo(const char *url);
 extern void cgit_repo_config_cb(const char *name, const char *value);
-extern void cgit_querystring_cb(const char *name, const char *value);
 
@@ -192,3 +193,2 @@ extern int chk_non_negative(int result, char *msg);
 
-extern int hextoint(char c);
 extern char *trim_end(const char *str, char c);
@@ -215,16 +215,2 @@ extern char *fmt(const char *format,...);
 
-extern void html(const char *txt);
-extern void htmlf(const char *format,...);
-extern void html_txt(char *txt);
-extern void html_ntxt(int len, char *txt);
-extern void html_attr(char *txt);
-extern void html_hidden(char *name, char *value);
-extern void html_option(char *value, char *text, char *selected_value);
-extern void html_link_open(char *url, char *title, char *class);
-extern void html_link_close(void);
-extern void html_filemode(unsigned short mode);
-extern int html_include(const char *filename);
-
-extern int cgit_read_config(const char *filename, configfn fn);
-extern int cgit_parse_query(char *txt, configfn fn);
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
@@ -233,61 +219,4 @@ extern void cgit_parse_url(const char *url);
 
-extern char *cache_safe_filename(const char *unsafe);
-extern int cache_lock(struct cacheitem *item);
-extern int cache_unlock(struct cacheitem *item);
-extern int cache_cancel_lock(struct cacheitem *item);
-extern int cache_exist(struct cacheitem *item);
-extern int cache_expired(struct cacheitem *item);
-
-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 const char *cgit_repobasename(const char *reponame);
 
-extern void cgit_tree_link(char *name, char *title, char *class, char *head,
-			   char *rev, char *path);
-extern void cgit_log_link(char *name, char *title, char *class, char *head,
-			  char *rev, char *path, int ofs, char *grep,
-			  char *pattern);
-extern void cgit_commit_link(char *name, char *title, char *class, char *head,
-			     char *rev);
-extern void cgit_refs_link(char *name, char *title, char *class, char *head,
-			   char *rev, char *path);
-extern void cgit_snapshot_link(char *name, char *title, char *class,
-			       char *head, char *rev, char *archivename);
-extern void cgit_diff_link(char *name, char *title, char *class, char *head,
-			   char *new_rev, char *old_rev, char *path);
-
-extern void cgit_object_link(struct object *obj);
-
-extern void cgit_print_error(char *msg);
-extern void cgit_print_date(time_t secs, char *format);
-extern void cgit_print_age(time_t t, time_t max_relative, char *format);
-extern void cgit_print_docstart(char *title, struct cacheitem *item);
-extern void cgit_print_docend();
-extern void cgit_print_pageheader(char *title, int show_search);
-extern void cgit_print_snapshot_start(const char *mimetype,
-				      const char *filename,
-				      struct cacheitem *item);
-extern void cgit_print_branches(int maxcount);
-extern void cgit_print_tags(int maxcount);
-
-extern void cgit_print_repolist(struct cacheitem *item);
-extern void cgit_print_summary();
-extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep,
-			   char *pattern, char *path, int pager);
-extern void cgit_print_blob(struct cacheitem *item, const char *hex, char *path);
-extern void cgit_print_tree(const char *rev, char *path);
-extern void cgit_print_commit(char *hex);
-extern void cgit_print_refs();
-extern void cgit_print_tag(char *revname);
-extern void cgit_print_diff(const char *new_hex, const char *old_hex, const char *prefix);
-extern void cgit_print_patch(char *hex, struct cacheitem *item);
-extern void cgit_print_snapshot(struct cacheitem *item, const char *head,
-				const char *hex, const char *prefix,
-				const char *filename, int snapshot);
-extern void cgit_print_snapshot_links(const char *repo, const char *head,
-				      const char *hex, int snapshots);
 extern int cgit_parse_snapshots_mask(const char *str);
diff --git a/cmd.c b/cmd.c
new file mode 100644
index 0000000..e0eacbe
--- a/dev/null
+++ b/cmd.c
@@ -0,0 +1,112 @@
+/* cmd.c: the cgit command dispatcher
+ *
+ * Copyright (C) 2008 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ *   (see COPYING for full license text)
+ */
+
+#include "cgit.h"
+#include "cmd.h"
+#include "ui-blob.h"
+#include "ui-commit.h"
+#include "ui-diff.h"
+#include "ui-log.h"
+#include "ui-patch.h"
+#include "ui-refs.h"
+#include "ui-repolist.h"
+#include "ui-snapshot.h"
+#include "ui-summary.h"
+#include "ui-tag.h"
+#include "ui-tree.h"
+
+static void blob_fn(struct cgit_context *ctx)
+{
+	cgit_print_blob(ctx->qry.sha1, ctx->qry.path);
+}
+
+static void commit_fn(struct cgit_context *ctx)
+{
+	cgit_print_commit(ctx->qry.sha1);
+}
+
+static void diff_fn(struct cgit_context *ctx)
+{
+	cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
+}
+
+static void repolist_fn(struct cgit_context *ctx)
+{
+	cgit_print_repolist();
+}
+
+static void log_fn(struct cgit_context *ctx)
+{
+	cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
+		       ctx->qry.grep, ctx->qry.search, ctx->qry.path, 1);
+}
+
+static void patch_fn(struct cgit_context *ctx)
+{
+	cgit_print_patch(ctx->qry.sha1);
+}
+
+static void refs_fn(struct cgit_context *ctx)
+{
+	cgit_print_refs();
+}
+
+static void snapshot_fn(struct cgit_context *ctx)
+{
+	cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1,
+			    cgit_repobasename(ctx->repo->url), ctx->qry.path,
+			    ctx->repo->snapshots);
+}
+
+static void summary_fn(struct cgit_context *ctx)
+{
+	cgit_print_summary();
+}
+
+static void tag_fn(struct cgit_context *ctx)
+{
+	cgit_print_tag(ctx->qry.sha1);
+}
+
+static void tree_fn(struct cgit_context *ctx)
+{
+	cgit_print_tree(ctx->qry.sha1, ctx->qry.path);
+}
+
+#define def_cmd(name, want_repo, want_layout) \
+	{#name, name##_fn, want_repo, want_layout}
+
+struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
+{
+	static struct cgit_cmd cmds[] = {
+		def_cmd(blob, 1, 0),
+		def_cmd(commit, 1, 1),
+		def_cmd(diff, 1, 1),
+		def_cmd(log, 1, 1),
+		def_cmd(patch, 1, 0),
+		def_cmd(refs, 1, 1),
+		def_cmd(repolist, 0, 0),
+		def_cmd(snapshot, 1, 0),
+		def_cmd(summary, 1, 1),
+		def_cmd(tag, 1, 1),
+		def_cmd(tree, 1, 1),
+	};
+	int i;
+
+	if (ctx->qry.page == NULL) {
+		if (ctx->repo)
+			ctx->qry.page = "summary";
+		else
+			ctx->qry.page = "repolist";
+	}
+
+	for(i = 0; i < sizeof(cmds)/sizeof(*cmds); i++)
+		if (!strcmp(ctx->qry.page, cmds[i].name))
+			return &cmds[i];
+	return NULL;
+}
diff --git a/cmd.h b/cmd.h
new file mode 100644
index 0000000..ec9e691
--- a/dev/null
+++ b/cmd.h
@@ -0,0 +1,15 @@
+#ifndef CMD_H
+#define CMD_H
+
+typedef void (*cgit_cmd_fn)(struct cgit_context *ctx);
+
+struct cgit_cmd {
+	const char *name;
+	cgit_cmd_fn fn;
+	unsigned int want_repo:1,
+		want_layout:1;
+};
+
+extern struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx);
+
+#endif /* CMD_H */
diff --git a/configfile.c b/configfile.c
new file mode 100644
index 0000000..4908058
--- a/dev/null
+++ b/configfile.c
@@ -0,0 +1,87 @@
+/* configfile.c: parsing of config files
+ *
+ * Copyright (C) 2008 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ *   (see COPYING for full license text)
+ */
+
+#include <ctype.h>
+#include <stdio.h>
+#include "configfile.h"
+
+int next_char(FILE *f)
+{
+	int c = fgetc(f);
+	if (c=='\r') {
+		c = fgetc(f);
+		if (c!='\n') {
+			ungetc(c, f);
+			c = '\r';
+		}
+	}
+	return c;
+}
+
+void skip_line(FILE *f)
+{
+	int c;
+
+	while((c=next_char(f)) && c!='\n' && c!=EOF)
+		;
+}
+
+int read_config_line(FILE *f, char *line, const char **value, int bufsize)
+{
+	int i = 0, isname = 0;
+
+	*value = NULL;
+	while(i<bufsize-1) {
+		int c = next_char(f);
+		if (!isname && (c=='#' || c==';')) {
+			skip_line(f);
+			continue;
+		}
+		if (!isname && isspace(c))
+			continue;
+
+		if (c=='=' && !*value) {
+			line[i] = 0;
+			*value = &line[i+1];
+		} else if (c=='\n' && !isname) {
+			i = 0;
+			continue;
+		} else if (c=='\n' || c==EOF) {
+			line[i] = 0;
+			break;
+		} else {
+			line[i]=c;
+		}
+		isname = 1;
+		i++;
+	}
+	line[i+1] = 0;
+	return i;
+}
+
+int parse_configfile(const char *filename, configfile_value_fn fn)
+{
+	static int nesting;
+	int len;
+	char line[256];
+	const char *value;
+	FILE *f;
+
+	/* cancel deeply nested include-commands */
+	if (nesting > 8)
+		return -1;
+	if (!(f = fopen(filename, "r")))
+		return -1;
+	nesting++;
+	while((len = read_config_line(f, line, &value, sizeof(line))) > 0)
+		fn(line, value);
+	nesting--;
+	fclose(f);
+	return 0;
+}
+
diff --git a/configfile.h b/configfile.h
new file mode 100644
index 0000000..04235e5
--- a/dev/null
+++ b/configfile.h
@@ -0,0 +1,8 @@
+#ifndef CONFIGFILE_H
+#define CONFIGFILE_H
+
+typedef void (*configfile_value_fn)(const char *name, const char *value);
+
+extern int parse_configfile(const char *filename, configfile_value_fn fn);
+
+#endif /* CONFIGFILE_H */
diff --git a/html.c b/html.c
index 339bf00..937b5e7 100644
--- a/html.c
+++ b/html.c
@@ -8,3 +8,9 @@
 
-#include "cgit.h"
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+int htmlfd = STDOUT_FILENO;
 
@@ -23,4 +29,6 @@ char *fmt(const char *format, ...)
 	va_end(args);
-	if (len>sizeof(buf[bufidx]))
-		die("[html.c] string truncated: %s", format);
+	if (len>sizeof(buf[bufidx])) {
+		fprintf(stderr, "[html.c] string truncated: %s\n", format);
+		exit(1);
+	}
 	return buf[bufidx];
@@ -152,3 +160,3 @@ void html_fileperm(unsigned short mode)
 {
-	htmlf("%c%c%c", (mode & 4 ? 'r' : '-'), 
+	htmlf("%c%c%c", (mode & 4 ? 'r' : '-'),
 	      (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-'));
@@ -156,17 +164,2 @@ void html_fileperm(unsigned short mode)
 
-void html_filemode(unsigned short mode)
-{
-	if (S_ISDIR(mode))
-		html("d");
-	else if (S_ISLNK(mode))
-		html("l");
-	else if (S_ISGITLINK(mode))
-		html("m");
-	else
-		html("-");
-	html_fileperm(mode >> 6);
-	html_fileperm(mode >> 3);
-	html_fileperm(mode);
-}
-
 int html_include(const char *filename)
@@ -184 +177,65 @@ int html_include(const char *filename)
 }
+
+int hextoint(char c)
+{
+	if (c >= 'a' && c <= 'f')
+		return 10 + c - 'a';
+	else if (c >= 'A' && c <= 'F')
+		return 10 + c - 'A';
+	else if (c >= '0' && c <= '9')
+		return c - '0';
+	else
+		return -1;
+}
+
+char *convert_query_hexchar(char *txt)
+{
+	int d1, d2;
+	if (strlen(txt) < 3) {
+		*txt = '\0';
+		return txt-1;
+	}
+	d1 = hextoint(*(txt+1));
+	d2 = hextoint(*(txt+2));
+	if (d1<0 || d2<0) {
+		strcpy(txt, txt+3);
+		return txt-1;
+	} else {
+		*txt = d1 * 16 + d2;
+		strcpy(txt+1, txt+3);
+		return txt;
+	}
+}
+
+int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value))
+{
+	char *t, *value = NULL, c;
+
+	if (!txt)
+		return 0;
+
+	t = txt = strdup(txt);
+	if (t == NULL) {
+		printf("Out of memory\n");
+		exit(1);
+	}
+	while((c=*t) != '\0') {
+		if (c=='=') {
+			*t = '\0';
+			value = t+1;
+		} else if (c=='+') {
+			*t = ' ';
+		} else if (c=='%') {
+			t = convert_query_hexchar(t);
+		} else if (c=='&') {
+			*t = '\0';
+			(*fn)(txt, value);
+			txt = t+1;
+			value = NULL;
+		}
+		t++;
+	}
+	if (t!=txt)
+		(*fn)(txt, value);
+	return 0;
+}
diff --git a/html.h b/html.h
new file mode 100644
index 0000000..e6fdc54
--- a/dev/null
+++ b/html.h
@@ -0,0 +1,20 @@
+#ifndef HTML_H
+#define HTML_H
+
+extern int htmlfd;
+
+extern void html(const char *txt);
+extern void htmlf(const char *format,...);
+extern void html_txt(char *txt);
+extern void html_ntxt(int len, char *txt);
+extern void html_attr(char *txt);
+extern void html_hidden(char *name, char *value);
+extern void html_option(char *value, char *text, char *selected_value);
+extern void html_link_open(char *url, char *title, char *class);
+extern void html_link_close(void);
+extern void html_fileperm(unsigned short mode);
+extern int html_include(const char *filename);
+
+extern int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value));
+
+#endif /* HTML_H */
diff --git a/parsing.c b/parsing.c
index 5093b8b..66e8b3d 100644
--- a/parsing.c
+++ b/parsing.c
@@ -10,126 +10,2 @@
 
-int next_char(FILE *f)
-{
-	int c = fgetc(f);
-	if (c=='\r') {
-		c = fgetc(f);
-		if (c!='\n') {
-			ungetc(c, f);
-			c = '\r';
-		}
-	}
-	return c;
-}
-
-void skip_line(FILE *f)
-{
-	int c;
-
-	while((c=next_char(f)) && c!='\n' && c!=EOF)
-		;
-}
-
-int read_config_line(FILE *f, char *line, const char **value, int bufsize)
-{
-	int i = 0, isname = 0;
-
-	*value = NULL;
-	while(i<bufsize-1) {
-		int c = next_char(f);
-		if (!isname && (c=='#' || c==';')) {
-			skip_line(f);
-			continue;
-		}
-		if (!isname && isspace(c))
-			continue;
-
-		if (c=='=' && !*value) {
-			line[i] = 0;
-			*value = &line[i+1];
-		} else if (c=='\n' && !isname) {
-			i = 0;
-			continue;
-		} else if (c=='\n' || c==EOF) {
-			line[i] = 0;
-			break;
-		} else {
-			line[i]=c;
-		}
-		isname = 1;
-		i++;
-	}
-	line[i+1] = 0;
-	return i;
-}
-
-int cgit_read_config(const char *filename, configfn fn)
-{
-	static int nesting;
-	int len;
-	char line[256];
-	const char *value;
-	FILE *f;
-
-	/* cancel deeply nested include-commands */
-	if (nesting > 8)
-		return -1;
-	if (!(f = fopen(filename, "r")))
-		return -1;
-	nesting++;
-	while((len = read_config_line(f, line, &value, sizeof(line))) > 0)
-		(*fn)(line, value);
-	nesting--;
-	fclose(f);
-	return 0;
-}
-
-char *convert_query_hexchar(char *txt)
-{
-	int d1, d2;
-	if (strlen(txt) < 3) {
-		*txt = '\0';
-		return txt-1;
-	}
-	d1 = hextoint(*(txt+1));
-	d2 = hextoint(*(txt+2));
-	if (d1<0 || d2<0) {
-		strcpy(txt, txt+3);
-		return txt-1;
-	} else {
-		*txt = d1 * 16 + d2;
-		strcpy(txt+1, txt+3);
-		return txt;
-	}
-}
-
-int cgit_parse_query(char *txt, configfn fn)
-{
-	char *t, *value = NULL, c;
-
-	if (!txt)
-		return 0;
-
-	t = txt = xstrdup(txt);
-
-	while((c=*t) != '\0') {
-		if (c=='=') {
-			*t = '\0';
-			value = t+1;
-		} else if (c=='+') {
-			*t = ' ';
-		} else if (c=='%') {
-			t = convert_query_hexchar(t);
-		} else if (c=='&') {
-			*t = '\0';
-			(*fn)(txt, value);
-			txt = t+1;
-			value = NULL;
-		}
-		t++;
-	}
-	if (t!=txt)
-		(*fn)(txt, value);
-	return 0;
-}
-
 /*
@@ -145,3 +21,3 @@ void cgit_parse_url(const char *url)
 
-	cgit_repo = NULL;
+	ctx.repo = NULL;
 	if (!url || url[0] == '\0')
@@ -149,5 +25,5 @@ void cgit_parse_url(const char *url)
 
-	cgit_repo = cgit_get_repoinfo(url);
-	if (cgit_repo) {
-		cgit_query_repo = cgit_repo->url;
+	ctx.repo = cgit_get_repoinfo(url);
+	if (ctx.repo) {
+		ctx.qry.repo = ctx.repo->url;
 		return;
@@ -156,6 +32,6 @@ void cgit_parse_url(const char *url)
 	cmd = strchr(url, '/');
-	while (!cgit_repo && cmd) {
+	while (!ctx.repo && cmd) {
 		cmd[0] = '\0';
-		cgit_repo = cgit_get_repoinfo(url);
-		if (cgit_repo == NULL) {
+		ctx.repo = cgit_get_repoinfo(url);
+		if (ctx.repo == NULL) {
 			cmd[0] = '/';
@@ -165,3 +41,3 @@ void cgit_parse_url(const char *url)
 
-		cgit_query_repo = cgit_repo->url;
+		ctx.qry.repo = ctx.repo->url;
 		p = strchr(cmd + 1, '/');
@@ -170,6 +46,6 @@ void cgit_parse_url(const char *url)
 			if (p[1])
-				cgit_query_path = trim_end(p + 1, '/');
+				ctx.qry.path = trim_end(p + 1, '/');
 		}
-		cgit_cmd = cgit_get_cmd_index(cmd + 1);
-		cgit_query_page = xstrdup(cmd + 1);
+		if (cmd[1])
+			ctx.qry.page = xstrdup(cmd + 1);
 		return;
diff --git a/shared.c b/shared.c
index f063894..f5875e4 100644
--- a/shared.c
+++ b/shared.c
@@ -10,73 +10,6 @@
 
-struct repolist cgit_repolist;
-struct repoinfo *cgit_repo;
+struct cgit_repolist cgit_repolist;
+struct cgit_context ctx;
 int cgit_cmd;
 
-const char *cgit_version = CGIT_VERSION;
-
-char *cgit_root_title   = "Git repository browser";
-char *cgit_css          = "/cgit.css";
-char *cgit_logo         = "/git-logo.png";
-char *cgit_index_header = NULL;
-char *cgit_index_info   = NULL;
-char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
-char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
-char *cgit_agefile      = "info/web/last-modified";
-char *cgit_virtual_root = NULL;
-char *cgit_script_name  = CGIT_SCRIPT_NAME;
-char *cgit_cache_root   = CGIT_CACHE_ROOT;
-char *cgit_repo_group   = NULL;
-char *cgit_robots       = "index, nofollow";
-char *cgit_clone_prefix = NULL;
-
-int cgit_nocache               =  0;
-int cgit_snapshots             =  0;
-int cgit_enable_index_links    =  0;
-int cgit_enable_log_filecount  =  0;
-int cgit_enable_log_linecount  =  0;
-int cgit_max_lock_attempts     =  5;
-int cgit_cache_root_ttl        =  5;
-int cgit_cache_repo_ttl        =  5;
-int cgit_cache_dynamic_ttl     =  5;
-int cgit_cache_static_ttl      = -1;
-int cgit_cache_max_create_time =  5;
-int cgit_summary_log           =  0;
-int cgit_summary_tags          =  0;
-int cgit_summary_branches      =  0;
-int cgit_renamelimit           = -1;
-
-int cgit_max_msg_len = 60;
-int cgit_max_repodesc_len = 60;
-int cgit_max_commit_count = 50;
-
-int cgit_query_has_symref = 0;
-int cgit_query_has_sha1   = 0;
-
-char *cgit_querystring  = NULL;
-char *cgit_query_repo   = NULL;
-char *cgit_query_page   = NULL;
-char *cgit_query_head   = NULL;
-char *cgit_query_search = NULL;
-char *cgit_query_grep   = NULL;
-char *cgit_query_sha1   = NULL;
-char *cgit_query_sha2   = NULL;
-char *cgit_query_path   = NULL;
-char *cgit_query_name   = NULL;
-int   cgit_query_ofs    = 0;
-
-int htmlfd = 0;
-
-
-int cgit_get_cmd_index(const char *cmd)
-{
-	static char *cmds[] = {"log", "commit", "diff", "tree", "blob",
-			       "snapshot", "tag", "refs", "patch", NULL};
-	int i;
-
-	for(i = 0; cmds[i]; i++)
-		if (!strcmp(cmd, cmds[i]))
-			return i + 1;
-	return 0;
-}
-
 int chk_zero(int result, char *msg)
@@ -102,5 +35,5 @@ int chk_non_negative(int result, char *msg)
 
-struct repoinfo *add_repo(const char *url)
+struct cgit_repo *cgit_add_repo(const char *url)
 {
-	struct repoinfo *ret;
+	struct cgit_repo *ret;
 
@@ -113,3 +46,3 @@ struct repoinfo *add_repo(const char *url)
 					       cgit_repolist.length *
-					       sizeof(struct repoinfo));
+					       sizeof(struct cgit_repo));
 	}
@@ -122,8 +55,8 @@ struct repoinfo *add_repo(const char *url)
 	ret->owner = NULL;
-	ret->group = cgit_repo_group;
+	ret->group = ctx.cfg.repo_group;
 	ret->defbranch = "master";
-	ret->snapshots = cgit_snapshots;
-	ret->enable_log_filecount = cgit_enable_log_filecount;
-	ret->enable_log_linecount = cgit_enable_log_linecount;
-	ret->module_link = cgit_module_link;
+	ret->snapshots = ctx.cfg.snapshots;
+	ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
+	ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
+	ret->module_link = ctx.cfg.module_link;
 	ret->readme = NULL;
@@ -132,6 +65,6 @@ struct repoinfo *add_repo(const char *url)
 
-struct repoinfo *cgit_get_repoinfo(const char *url)
+struct cgit_repo *cgit_get_repoinfo(const char *url)
 {
 	int i;
-	struct repoinfo *repo;
+	struct cgit_repo *repo;
 
@@ -145,127 +78,2 @@ struct repoinfo *cgit_get_repoinfo(const char *url)
 
-void cgit_global_config_cb(const char *name, const char *value)
-{
-	if (!strcmp(name, "root-title"))
-		cgit_root_title = xstrdup(value);
-	else if (!strcmp(name, "css"))
-		cgit_css = xstrdup(value);
-	else if (!strcmp(name, "logo"))
-		cgit_logo = xstrdup(value);
-	else if (!strcmp(name, "index-header"))
-		cgit_index_header = xstrdup(value);
-	else if (!strcmp(name, "index-info"))
-		cgit_index_info = xstrdup(value);
-	else if (!strcmp(name, "logo-link"))
-		cgit_logo_link = xstrdup(value);
-	else if (!strcmp(name, "module-link"))
-		cgit_module_link = xstrdup(value);
-	else if (!strcmp(name, "virtual-root")) {
-		cgit_virtual_root = trim_end(value, '/');
-		if (!cgit_virtual_root && (!strcmp(value, "/")))
-			cgit_virtual_root = "";
-	} else if (!strcmp(name, "nocache"))
-		cgit_nocache = atoi(value);
-	else if (!strcmp(name, "snapshots"))
-		cgit_snapshots = cgit_parse_snapshots_mask(value);
-	else if (!strcmp(name, "enable-index-links"))
-		cgit_enable_index_links = atoi(value);
-	else if (!strcmp(name, "enable-log-filecount"))
-		cgit_enable_log_filecount = atoi(value);
-	else if (!strcmp(name, "enable-log-linecount"))
-		cgit_enable_log_linecount = atoi(value);
-	else if (!strcmp(name, "cache-root"))
-		cgit_cache_root = xstrdup(value);
-	else if (!strcmp(name, "cache-root-ttl"))
-		cgit_cache_root_ttl = atoi(value);
-	else if (!strcmp(name, "cache-repo-ttl"))
-		cgit_cache_repo_ttl = atoi(value);
-	else if (!strcmp(name, "cache-static-ttl"))
-		cgit_cache_static_ttl = atoi(value);
-	else if (!strcmp(name, "cache-dynamic-ttl"))
-		cgit_cache_dynamic_ttl = atoi(value);
-	else if (!strcmp(name, "max-message-length"))
-		cgit_max_msg_len = atoi(value);
-	else if (!strcmp(name, "max-repodesc-length"))
-		cgit_max_repodesc_len = atoi(value);
-	else if (!strcmp(name, "max-commit-count"))
-		cgit_max_commit_count = atoi(value);
-	else if (!strcmp(name, "summary-log"))
-		cgit_summary_log = atoi(value);
-	else if (!strcmp(name, "summary-branches"))
-		cgit_summary_branches = atoi(value);
-	else if (!strcmp(name, "summary-tags"))
-		cgit_summary_tags = atoi(value);
-	else if (!strcmp(name, "agefile"))
-		cgit_agefile = xstrdup(value);
-	else if (!strcmp(name, "renamelimit"))
-		cgit_renamelimit = atoi(value);
-	else if (!strcmp(name, "robots"))
-		cgit_robots = xstrdup(value);
-	else if (!strcmp(name, "clone-prefix"))
-		cgit_clone_prefix = xstrdup(value);
-	else if (!strcmp(name, "repo.group"))
-		cgit_repo_group = xstrdup(value);
-	else if (!strcmp(name, "repo.url"))
-		cgit_repo = add_repo(value);
-	else if (!strcmp(name, "repo.name"))
-		cgit_repo->name = xstrdup(value);
-	else if (cgit_repo && !strcmp(name, "repo.path"))
-		cgit_repo->path = trim_end(value, '/');
-	else if (cgit_repo && !strcmp(name, "repo.clone-url"))
-		cgit_repo->clone_url = xstrdup(value);
-	else if (cgit_repo && !strcmp(name, "repo.desc"))
-		cgit_repo->desc = xstrdup(value);
-	else if (cgit_repo && !strcmp(name, "repo.owner"))
-		cgit_repo->owner = xstrdup(value);
-	else if (cgit_repo && !strcmp(name, "repo.defbranch"))
-		cgit_repo->defbranch = xstrdup(value);
-	else if (cgit_repo && !strcmp(name, "repo.snapshots"))
-		cgit_repo->snapshots = cgit_snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */
-	else if (cgit_repo && !strcmp(name, "repo.enable-log-filecount"))
-		cgit_repo->enable_log_filecount = cgit_enable_log_filecount * atoi(value);
-	else if (cgit_repo && !strcmp(name, "repo.enable-log-linecount"))
-		cgit_repo->enable_log_linecount = cgit_enable_log_linecount * atoi(value);
-	else if (cgit_repo && !strcmp(name, "repo.module-link"))
-		cgit_repo->module_link= xstrdup(value);
-	else if (cgit_repo && !strcmp(name, "repo.readme") && value != NULL) {
-		if (*value == '/')
-			cgit_repo->readme = xstrdup(value);
-		else
-			cgit_repo->readme = xstrdup(fmt("%s/%s", cgit_repo->path, value));
-	} else if (!strcmp(name, "include"))
-		cgit_read_config(value, cgit_global_config_cb);
-}
-
-void cgit_querystring_cb(const char *name, const char *value)
-{
-	if (!strcmp(name,"r")) {
-		cgit_query_repo = xstrdup(value);
-		cgit_repo = cgit_get_repoinfo(value);
-	} else if (!strcmp(name, "p")) {
-		cgit_query_page = xstrdup(value);
-		cgit_cmd = cgit_get_cmd_index(value);
-	} else if (!strcmp(name, "url")) {
-		cgit_parse_url(value);
-	} else if (!strcmp(name, "qt")) {
-		cgit_query_grep = xstrdup(value);
-	} else if (!strcmp(name, "q")) {
-		cgit_query_search = xstrdup(value);
-	} else if (!strcmp(name, "h")) {
-		cgit_query_head = xstrdup(value);
-		cgit_query_has_symref = 1;
-	} else if (!strcmp(name, "id")) {
-		cgit_query_sha1 = xstrdup(value);
-		cgit_query_has_sha1 = 1;
-	} else if (!strcmp(name, "id2")) {
-		cgit_query_sha2 = xstrdup(value);
-		cgit_query_has_sha1 = 1;
-	} else if (!strcmp(name, "ofs")) {
-		cgit_query_ofs = atoi(value);
-	} else if (!strcmp(name, "path")) {
-		cgit_query_path = trim_end(value, '/');
-	} else if (!strcmp(name, "name")) {
-		cgit_query_name = xstrdup(value);
-	}
-}
-
 void *cgit_free_commitinfo(struct commitinfo *info)
@@ -283,14 +91,2 @@ void *cgit_free_commitinfo(struct commitinfo *info)
 
-int hextoint(char c)
-{
-	if (c >= 'a' && c <= 'f')
-		return 10 + c - 'a';
-	else if (c >= 'A' && c <= 'F')
-		return 10 + c - 'A';
-	else if (c >= '0' && c <= '9')
-		return c - '0';
-	else
-		return -1;
-}
-
 char *trim_end(const char *str, char c)
@@ -493,3 +289,3 @@ void cgit_diff_tree(const unsigned char *old_sha1,
 	opt.detect_rename = 1;
-	opt.rename_limit = cgit_renamelimit;
+	opt.rename_limit = ctx.cfg.renamelimit;
 	DIFF_OPT_SET(&opt, RECURSIVE);
@@ -521 +317,28 @@ void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 }
+
+int cgit_parse_snapshots_mask(const char *str)
+{
+	const struct cgit_snapshot_format *f;
+	static const char *delim = " \t,:/|;";
+	int tl, sl, rv = 0;
+
+	/* favor legacy setting */
+	if(atoi(str))
+		return 1;
+	for(;;) {
+		str += strspn(str,delim);
+		tl = strcspn(str,delim);
+		if (!tl)
+			break;
+		for (f = cgit_snapshot_formats; f->suffix; f++) {
+			sl = strlen(f->suffix);
+			if((tl == sl && !strncmp(f->suffix, str, tl)) ||
+			   (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
+				rv |= f->bit;
+				break;
+			}
+		}
+		str += tl;
+	}
+	return rv;
+}
diff --git a/ui-blob.c b/ui-blob.c
index f5b844b..11589db 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -1,4 +1,14 @@
+/* ui-blob.c: show blob content
+ *
+ * Copyright (C) 2008 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ *   (see COPYING for full license text)
+ */
+
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
-void cgit_print_blob(struct cacheitem *item, const char *hex, char *path)
+void cgit_print_blob(const char *hex, char *path)
 {
@@ -28,3 +38,5 @@ void cgit_print_blob(struct cacheitem *item, const char *hex, char *path)
 	buf[size] = '\0';
-	cgit_print_snapshot_start("text/plain", path, item);
+	ctx.page.mimetype = "text/plain";
+	ctx.page.filename = path;
+	cgit_print_http_headers(&ctx);
 	write(htmlfd, buf, size);
diff --git a/ui-blob.h b/ui-blob.h
new file mode 100644
index 0000000..5a920a8
--- a/dev/null
+++ b/ui-blob.h
@@ -0,0 +1,6 @@
+#ifndef UI_BLOB_H
+#define UI_BLOB_H
+
+extern void cgit_print_blob(const char *hex, char *path);
+
+#endif /* UI_BLOB_H */
diff --git a/ui-commit.c b/ui-commit.c
index bd55a33..8019e36 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -9,2 +9,4 @@
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
@@ -64,5 +66,5 @@ void print_fileinfo(struct fileinfo *info)
 	if (is_null_sha1(info->new_sha1)) {
-		html_filemode(info->old_mode);
+		cgit_print_filemode(info->old_mode);
 	} else {
-		html_filemode(info->new_mode);
+		cgit_print_filemode(info->new_mode);
 	}
@@ -73,3 +75,3 @@ void print_fileinfo(struct fileinfo *info)
 		html("<span class='modechange'>[");
-		html_filemode(info->old_mode);
+		cgit_print_filemode(info->old_mode);
 		html("]</span>");
@@ -77,3 +79,3 @@ void print_fileinfo(struct fileinfo *info)
 	htmlf("</td><td class='%s'>", class);
-	cgit_diff_link(info->new_path, NULL, NULL, cgit_query_head, curr_rev,
+	cgit_diff_link(info->new_path, NULL, NULL, ctx.qry.head, curr_rev,
 		       NULL, info->new_path);
@@ -145,3 +147,3 @@ void cgit_print_commit(char *hex)
 	if (!hex)
-		hex = cgit_query_head;
+		hex = ctx.qry.head;
 	curr_rev = hex;
@@ -177,3 +179,3 @@ void cgit_print_commit(char *hex)
 	cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
-		       cgit_query_head, tmp, NULL);
+		       ctx.qry.head, tmp, NULL);
 	html("</td></tr>\n");
@@ -190,5 +192,5 @@ void cgit_print_commit(char *hex)
 		cgit_commit_link(sha1_to_hex(p->item->object.sha1), NULL, NULL,
-				 cgit_query_head, sha1_to_hex(p->item->object.sha1));
+				 ctx.qry.head, sha1_to_hex(p->item->object.sha1));
 		html(" (");
-		cgit_diff_link("diff", NULL, NULL, cgit_query_head, hex,
+		cgit_diff_link("diff", NULL, NULL, ctx.qry.head, hex,
 			       sha1_to_hex(p->item->object.sha1), NULL);
@@ -196,6 +198,6 @@ void cgit_print_commit(char *hex)
 	}
-	if (cgit_repo->snapshots) {
+	if (ctx.repo->snapshots) {
 		html("<tr><th>download</th><td colspan='2' class='sha1'>");
-		cgit_print_snapshot_links(cgit_query_repo, cgit_query_head,
-					  hex, cgit_repo->snapshots);
+		cgit_print_snapshot_links(ctx.qry.repo, ctx.qry.head,
+					  hex, ctx.repo->snapshots);
 		html("</td></tr>");
@@ -220,3 +222,3 @@ void cgit_print_commit(char *hex)
 		      files, total_adds, total_rems);
-		cgit_diff_link("show diff", NULL, NULL, cgit_query_head, hex,
+		cgit_diff_link("show diff", NULL, NULL, ctx.qry.head, hex,
 			       NULL, NULL);
diff --git a/ui-commit.h b/ui-commit.h
new file mode 100644
index 0000000..40bcb31
--- a/dev/null
+++ b/ui-commit.h
@@ -0,0 +1,6 @@
+#ifndef UI_COMMIT_H
+#define UI_COMMIT_H
+
+extern void cgit_print_commit(char *hex);
+
+#endif /* UI_COMMIT_H */
diff --git a/ui-diff.c b/ui-diff.c
index 4fcf852..2a22009 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -9,3 +9,4 @@
 #include "cgit.h"
-
+#include "html.h"
+#include "ui-shared.h"
 
@@ -73,3 +74,3 @@ static void header(unsigned char *sha1, char *path1, int mode1,
 		if (mode1 != 0)
-			cgit_tree_link(path1, NULL, NULL, cgit_query_head,
+			cgit_tree_link(path1, NULL, NULL, ctx.qry.head,
 				       sha1_to_hex(old_rev_sha1), path1);
@@ -79,3 +80,3 @@ static void header(unsigned char *sha1, char *path1, int mode1,
 		if (mode2 != 0)
-			cgit_tree_link(path2, NULL, NULL, cgit_query_head,
+			cgit_tree_link(path2, NULL, NULL, ctx.qry.head,
 				       sha1_to_hex(new_rev_sha1), path2);
@@ -109,3 +110,3 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
 	if (!new_rev)
-		new_rev = cgit_query_head;
+		new_rev = ctx.qry.head;
 	get_sha1(new_rev, new_rev_sha1);
diff --git a/ui-diff.h b/ui-diff.h
new file mode 100644
index 0000000..2307322
--- a/dev/null
+++ b/ui-diff.h
@@ -0,0 +1,7 @@
+#ifndef UI_DIFF_H
+#define UI_DIFF_H
+
+extern void cgit_print_diff(const char *new_hex, const char *old_hex,
+			    const char *prefix);
+
+#endif /* UI_DIFF_H */
diff --git a/ui-log.c b/ui-log.c
index a41d2b2..60c9269 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -9,2 +9,4 @@
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
@@ -27,3 +29,3 @@ void inspect_files(struct diff_filepair *pair)
 	files++;
-	if (cgit_repo->enable_log_linecount)
+	if (ctx.repo->enable_log_linecount)
 		cgit_diff_files(pair->one->sha1, pair->two->sha1, count_lines);
@@ -39,5 +41,5 @@ void print_commit(struct commit *commit)
 	html("</td><td>");
-	cgit_commit_link(info->subject, NULL, NULL, cgit_query_head,
+	cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
 			 sha1_to_hex(commit->object.sha1));
-	if (cgit_repo->enable_log_filecount) {
+	if (ctx.repo->enable_log_filecount) {
 		files = 0;
@@ -48,3 +50,3 @@ void print_commit(struct commit *commit)
 		htmlf("%d", files);
-		if (cgit_repo->enable_log_linecount) {
+		if (ctx.repo->enable_log_linecount) {
 			html("</td><td class='right'>");
@@ -69,3 +71,3 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 	if (!tip)
-		argv[1] = cgit_query_head;
+		argv[1] = ctx.qry.head;
 
@@ -96,5 +98,5 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 
-	if (cgit_repo->enable_log_filecount) {
+	if (ctx.repo->enable_log_filecount) {
 		html("<th class='right'>Files</th>");
-		if (cgit_repo->enable_log_linecount)
+		if (ctx.repo->enable_log_linecount)
 			html("<th class='right'>Lines</th>");
@@ -125,6 +127,6 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 		if (ofs > 0) {
-			cgit_log_link("[prev]", NULL, NULL, cgit_query_head,
-				      cgit_query_sha1, cgit_query_path,
-				      ofs - cnt, cgit_query_grep,
-				      cgit_query_search);
+			cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
+				      ctx.qry.sha1, ctx.qry.path,
+				      ofs - cnt, ctx.qry.grep,
+				      ctx.qry.search);
 			html("&nbsp;");
@@ -132,6 +134,6 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
 		if ((commit = get_revision(&rev)) != NULL) {
-			cgit_log_link("[next]", NULL, NULL, cgit_query_head,
-				      cgit_query_sha1, cgit_query_path,
-				      ofs + cnt, cgit_query_grep,
-				      cgit_query_search);
+			cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
+				      ctx.qry.sha1, ctx.qry.path,
+				      ofs + cnt, ctx.qry.grep,
+				      ctx.qry.search);
 		}
diff --git a/ui-log.h b/ui-log.h
new file mode 100644
index 0000000..877e40e
--- a/dev/null
+++ b/ui-log.h
@@ -0,0 +1,7 @@
+#ifndef UI_LOG_H
+#define UI_LOG_H
+
+extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep,
+			   char *pattern, char *path, int pager);
+
+#endif /* UI_LOG_H */
diff --git a/ui-patch.c b/ui-patch.c
index 7ee2c41..c1c4ce3 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -9,2 +9,4 @@
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
@@ -70,3 +72,3 @@ static void filepair_cb(struct diff_filepair *pair)
 
-void cgit_print_patch(char *hex, struct cacheitem *item)
+void cgit_print_patch(char *hex)
 {
@@ -78,3 +80,3 @@ void cgit_print_patch(char *hex, struct cacheitem *item)
 	if (!hex)
-		hex = cgit_query_head;
+		hex = ctx.qry.head;
 
@@ -97,3 +99,5 @@ void cgit_print_patch(char *hex, struct cacheitem *item)
 	patchname = fmt("%s.patch", sha1_to_hex(sha1));
-	cgit_print_snapshot_start("text/plain", patchname, item);
+	ctx.page.mimetype = "text/plain";
+	ctx.page.filename = patchname;
+	cgit_print_http_headers(&ctx);
 	htmlf("From %s Mon Sep 17 00:00:00 2001\n", sha1_to_hex(sha1));
diff --git a/ui-patch.h b/ui-patch.h
new file mode 100644
index 0000000..9f68212
--- a/dev/null
+++ b/ui-patch.h
@@ -0,0 +1,6 @@
+#ifndef UI_PATCH_H
+#define UI_PATCH_H
+
+extern void cgit_print_patch(char *hex);
+
+#endif /* UI_PATCH_H */
diff --git a/ui-refs.c b/ui-refs.c
index 295f5ba..12533cd 100644
--- a/ui-refs.c
+++ b/ui-refs.c
@@ -9,5 +9,176 @@
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
+static int header;
 
+static int cmp_age(int age1, int age2)
+{
+	if (age1 != 0 && age2 != 0)
+		return age2 - age1;
+
+	if (age1 == 0 && age2 == 0)
+		return 0;
+
+	if (age1 == 0)
+		return +1;
+
+	return -1;
+}
+
+static int cmp_ref_name(const void *a, const void *b)
+{
+	struct refinfo *r1 = *(struct refinfo **)a;
+	struct refinfo *r2 = *(struct refinfo **)b;
+
+	return strcmp(r1->refname, r2->refname);
+}
+
+static int cmp_branch_age(const void *a, const void *b)
+{
+	struct refinfo *r1 = *(struct refinfo **)a;
+	struct refinfo *r2 = *(struct refinfo **)b;
+
+	return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
+}
+
+static int cmp_tag_age(const void *a, const void *b)
+{
+	struct refinfo *r1 = *(struct refinfo **)a;
+	struct refinfo *r2 = *(struct refinfo **)b;
+
+	return cmp_age(r1->tag->tagger_date, r2->tag->tagger_date);
+}
+
+static int print_branch(struct refinfo *ref)
+{
+	struct commitinfo *info = ref->commit;
+	char *name = (char *)ref->refname;
+
+	if (!info)
+		return 1;
+	html("<tr><td>");
+	cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL);
+	html("</td><td>");
+
+	if (ref->object->type == OBJ_COMMIT) {
+		cgit_print_age(info->commit->date, -1, NULL);
+		html("</td><td>");
+		html_txt(info->author);
+		html("</td><td>");
+		cgit_commit_link(info->subject, NULL, NULL, name, NULL);
+	} else {
+		html("</td><td></td><td>");
+		cgit_object_link(ref->object);
+	}
+	html("</td></tr>\n");
+	return 0;
+}
+
+static void print_tag_header()
+{
+	html("<tr class='nohover'><th class='left'>Tag</th>"
+	     "<th class='left'>Age</th>"
+	     "<th class='left'>Author</th>"
+	     "<th class='left'>Reference</th></tr>\n");
+	header = 1;
+}
+
+static int print_tag(struct refinfo *ref)
+{
+	struct tag *tag;
+	struct taginfo *info;
+	char *url, *name = (char *)ref->refname;
+
+	if (ref->object->type == OBJ_TAG) {
+		tag = (struct tag *)ref->object;
+		info = ref->tag;
+		if (!tag || !info)
+			return 1;
+		html("<tr><td>");
+		url = cgit_pageurl(ctx.qry.repo, "tag",
+				   fmt("id=%s", name));
+		html_link_open(url, NULL, NULL);
+		html_txt(name);
+		html_link_close();
+		html("</td><td>");
+		if (info->tagger_date > 0)
+			cgit_print_age(info->tagger_date, -1, NULL);
+		html("</td><td>");
+		if (info->tagger)
+			html(info->tagger);
+		html("</td><td>");
+		cgit_object_link(tag->tagged);
+		html("</td></tr>\n");
+	} else {
+		if (!header)
+			print_tag_header();
+		html("<tr><td>");
+		html_txt(name);
+		html("</td><td colspan='2'/><td>");
+		cgit_object_link(ref->object);
+		html("</td></tr>\n");
+	}
+	return 0;
+}
+
+static void print_refs_link(char *path)
+{
+	html("<tr class='nohover'><td colspan='4'>");
+	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
+	html("</td></tr>");
+}
+
+void cgit_print_branches(int maxcount)
+{
+	struct reflist list;
+	int i;
 
+	html("<tr class='nohover'><th class='left'>Branch</th>"
+	     "<th class='left'>Idle</th>"
+	     "<th class='left'>Author</th>"
+	     "<th class='left'>Head commit</th></tr>\n");
+
+	list.refs = NULL;
+	list.alloc = list.count = 0;
+	for_each_branch_ref(cgit_refs_cb, &list);
+
+	if (maxcount == 0 || maxcount > list.count)
+		maxcount = list.count;
+
+	if (maxcount < list.count) {
+		qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
+		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
+	}
+
+	for(i=0; i<maxcount; i++)
+		print_branch(list.refs[i]);
+
+	if (maxcount < list.count)
+		print_refs_link("heads");
+}
+
+void cgit_print_tags(int maxcount)
+{
+	struct reflist list;
+	int i;
+
+	header = 0;
+	list.refs = NULL;
+	list.alloc = list.count = 0;
+	for_each_tag_ref(cgit_refs_cb, &list);
+	if (list.count == 0)
+		return;
+	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
+	if (!maxcount)
+		maxcount = list.count;
+	else if (maxcount > list.count)
+		maxcount = list.count;
+	print_tag_header();
+	for(i=0; i<maxcount; i++)
+		print_tag(list.refs[i]);
+
+	if (maxcount < list.count)
+		print_refs_link("tags");
+}
 
@@ -18,5 +189,5 @@ void cgit_print_refs()
 
-	if (cgit_query_path && !strncmp(cgit_query_path, "heads", 5))
+	if (ctx.qry.path && !strncmp(ctx.qry.path, "heads", 5))
 		cgit_print_branches(0);
-	else if (cgit_query_path && !strncmp(cgit_query_path, "tags", 4))
+	else if (ctx.qry.path && !strncmp(ctx.qry.path, "tags", 4))
 		cgit_print_tags(0);
diff --git a/ui-refs.h b/ui-refs.h
new file mode 100644
index 0000000..b35c04a
--- a/dev/null
+++ b/ui-refs.h
@@ -0,0 +1,8 @@
+#ifndef UI_REFS_H
+#define UI_REFS_H
+
+extern void cgit_print_branches(int maxcount);
+extern void cgit_print_tags(int maxcount);
+extern void cgit_print_refs();
+
+#endif /* UI_REFS_H */
diff --git a/ui-repolist.c b/ui-repolist.c
index 3e97ca9..eeeaf3d 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -8,5 +8,7 @@
 
-#include "cgit.h"
 #include <time.h>
 
+#include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
@@ -27,3 +29,3 @@ time_t read_agefile(char *path)
 
-static void print_modtime(struct repoinfo *repo)
+static void print_modtime(struct cgit_repo *repo)
 {
@@ -32,3 +34,3 @@ static void print_modtime(struct repoinfo *repo)
 
-	path = fmt("%s/%s", repo->path, cgit_agefile);
+	path = fmt("%s/%s", repo->path, ctx.cfg.agefile);
 	if (stat(path, &s) == 0) {
@@ -44,3 +46,3 @@ static void print_modtime(struct repoinfo *repo)
 
-void cgit_print_repolist(struct cacheitem *item)
+void cgit_print_repolist()
 {
@@ -49,13 +51,15 @@ void cgit_print_repolist(struct cacheitem *item)
 
-	if (cgit_enable_index_links)
+	if (ctx.cfg.enable_index_links)
 		columns++;
 
-	cgit_print_docstart(cgit_root_title, item);
-	cgit_print_pageheader(cgit_root_title, 0);
+	ctx.page.title = ctx.cfg.root_title;
+	cgit_print_http_headers(&ctx);
+	cgit_print_docstart(&ctx);
+	cgit_print_pageheader(&ctx);
 
 	html("<table summary='repository list' class='list nowrap'>");
-	if (cgit_index_header) {
+	if (ctx.cfg.index_header) {
 		htmlf("<tr class='nohover'><td colspan='%d' class='include-block'>",
 		      columns);
-		html_include(cgit_index_header);
+		html_include(ctx.cfg.index_header);
 		html("</td></tr>");
@@ -67,3 +71,3 @@ void cgit_print_repolist(struct cacheitem *item)
 	     "<th class='left'>Idle</th>");
-	if (cgit_enable_index_links)
+	if (ctx.cfg.enable_index_links)
 		html("<th>Links</th>");
@@ -72,28 +76,28 @@ void cgit_print_repolist(struct cacheitem *item)
 	for (i=0; i<cgit_repolist.count; i++) {
-		cgit_repo = &cgit_repolist.repos[i];
-		if ((last_group == NULL && cgit_repo->group != NULL) ||
-		    (last_group != NULL && cgit_repo->group == NULL) ||
-		    (last_group != NULL && cgit_repo->group != NULL &&
-		     strcmp(cgit_repo->group, last_group))) {
+		ctx.repo = &cgit_repolist.repos[i];
+		if ((last_group == NULL && ctx.repo->group != NULL) ||
+		    (last_group != NULL && ctx.repo->group == NULL) ||
+		    (last_group != NULL && ctx.repo->group != NULL &&
+		     strcmp(ctx.repo->group, last_group))) {
 			htmlf("<tr class='nohover'><td colspan='%d' class='repogroup'>",
 			      columns);
-			html_txt(cgit_repo->group);
+			html_txt(ctx.repo->group);
 			html("</td></tr>");
-			last_group = cgit_repo->group;
+			last_group = ctx.repo->group;
 		}
 		htmlf("<tr><td class='%s'>",
-		      cgit_repo->group ? "sublevel-repo" : "toplevel-repo");
-		html_link_open(cgit_repourl(cgit_repo->url), NULL, NULL);
-		html_txt(cgit_repo->name);
+		      ctx.repo->group ? "sublevel-repo" : "toplevel-repo");
+		html_link_open(cgit_repourl(ctx.repo->url), NULL, NULL);
+		html_txt(ctx.repo->name);
 		html_link_close();
 		html("</td><td>");
-		html_ntxt(cgit_max_repodesc_len, cgit_repo->desc);
+		html_ntxt(ctx.cfg.max_repodesc_len, ctx.repo->desc);
 		html("</td><td>");
-		html_txt(cgit_repo->owner);
+		html_txt(ctx.repo->owner);
 		html("</td><td>");
-		print_modtime(cgit_repo);
+		print_modtime(ctx.repo);
 		html("</td>");
-		if (cgit_enable_index_links) {
+		if (ctx.cfg.enable_index_links) {
 			html("<td>");
-			html_link_open(cgit_repourl(cgit_repo->url),
+			html_link_open(cgit_repourl(ctx.repo->url),
 				       NULL, "button");
diff --git a/ui-repolist.h b/ui-repolist.h
new file mode 100644
index 0000000..c23e5d2
--- a/dev/null
+++ b/ui-repolist.h
@@ -0,0 +1,6 @@
+#ifndef UI_REPOLIST_H
+#define UI_REPOLIST_H
+
+extern void cgit_print_repolist();
+
+#endif /* UI_REPOLIST_H */
diff --git a/ui-shared.c b/ui-shared.c
index 60aa2e3..aa65988 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -9,2 +9,3 @@
 #include "cgit.h"
+#include "html.h"
 
@@ -27,10 +28,2 @@ static char *http_date(time_t t)
 
-static long ttl_seconds(long ttl)
-{
-	if (ttl<0)
-		return 60 * 60 * 24 * 365;
-	else
-		return ttl * 60;
-}
-
 void cgit_print_error(char *msg)
@@ -44,6 +37,6 @@ char *cgit_rooturl()
 {
-	if (cgit_virtual_root)
-		return fmt("%s/", cgit_virtual_root);
+	if (ctx.cfg.virtual_root)
+		return fmt("%s/", ctx.cfg.virtual_root);
 	else
-		return cgit_script_name;
+		return ctx.cfg.script_name;
 }
@@ -52,4 +45,4 @@ char *cgit_repourl(const char *reponame)
 {
-	if (cgit_virtual_root) {
-		return fmt("%s/%s/", cgit_virtual_root, reponame);
+	if (ctx.cfg.virtual_root) {
+		return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
 	} else {
@@ -65,4 +58,4 @@ char *cgit_fileurl(const char *reponame, const char *pagename,
 
-	if (cgit_virtual_root) {
-		tmp = fmt("%s/%s/%s/%s", cgit_virtual_root, reponame,
+	if (ctx.cfg.virtual_root) {
+		tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
 			  pagename, (filename ? filename:""));
@@ -112,10 +105,10 @@ char *cgit_currurl()
 {
-	if (!cgit_virtual_root)
-		return cgit_script_name;
-	else if (cgit_query_page)
-		return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
-	else if (cgit_query_repo)
-		return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
+	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/", cgit_virtual_root);
+		return fmt("%s/", ctx.cfg.virtual_root);
 }
@@ -139,8 +132,8 @@ static char *repolink(char *title, char *class, char *page, char *head,
 	html(" href='");
-	if (cgit_virtual_root) {
-		html_attr(cgit_virtual_root);
-		if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/')
+	if (ctx.cfg.virtual_root) {
+		html_attr(ctx.cfg.virtual_root);
+		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
 			html("/");
-		html_attr(cgit_repo->url);
-		if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
+		html_attr(ctx.repo->url);
+		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 			html("/");
@@ -153,6 +146,6 @@ static char *repolink(char *title, char *class, char *page, char *head,
 	} else {
-		html(cgit_script_name);
+		html(ctx.cfg.script_name);
 		html("?url=");
-		html_attr(cgit_repo->url);
-		if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
+		html_attr(ctx.repo->url);
+		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 			html("/");
@@ -166,3 +159,3 @@ static char *repolink(char *title, char *class, char *page, char *head,
 	}
-	if (head && strcmp(head, cgit_repo->defbranch)) {
+	if (head && strcmp(head, ctx.repo->defbranch)) {
 		html(delim);
@@ -181,3 +174,3 @@ static void reporevlink(char *page, char *name, char *title, char *class,
 	delim = repolink(title, class, page, head, path);
-	if (rev && strcmp(rev, cgit_query_head)) {
+	if (rev && strcmp(rev, ctx.qry.head)) {
 		html(delim);
@@ -203,3 +196,3 @@ void cgit_log_link(char *name, char *title, char *class, char *head,
 	delim = repolink(title, class, "log", head, path);
-	if (rev && strcmp(rev, cgit_query_head)) {
+	if (rev && strcmp(rev, ctx.qry.head)) {
 		html(delim);
@@ -231,7 +224,7 @@ void cgit_commit_link(char *name, char *title, char *class, char *head,
 {
-	if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) {
-		name[cgit_max_msg_len] = '\0';
-		name[cgit_max_msg_len - 1] = '.';
-		name[cgit_max_msg_len - 2] = '.';
-		name[cgit_max_msg_len - 3] = '.';
+	if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
+		name[ctx.cfg.max_msg_len] = '\0';
+		name[ctx.cfg.max_msg_len - 1] = '.';
+		name[ctx.cfg.max_msg_len - 2] = '.';
+		name[ctx.cfg.max_msg_len - 3] = '.';
 	}
@@ -258,3 +251,3 @@ void cgit_diff_link(char *name, char *title, char *class, char *head,
 	delim = repolink(title, class, "diff", head, path);
-	if (new_rev && strcmp(new_rev, cgit_query_head)) {
+	if (new_rev && strcmp(new_rev, ctx.qry.head)) {
 		html(delim);
@@ -286,3 +279,3 @@ void cgit_object_link(struct object *obj)
                 cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
-				 cgit_query_head, sha1_to_hex(obj->sha1));
+				 ctx.qry.head, sha1_to_hex(obj->sha1));
 		return;
@@ -299,3 +292,3 @@ void cgit_object_link(struct object *obj)
 
-	url = cgit_pageurl(cgit_query_repo, page,
+	url = cgit_pageurl(ctx.qry.repo, page,
 			   fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
@@ -362,9 +355,19 @@ void cgit_print_age(time_t t, time_t max_relative, char *format)
 
-void cgit_print_docstart(char *title, struct cacheitem *item)
+void cgit_print_http_headers(struct cgit_context *ctx)
 {
-	html("Content-Type: text/html; charset=" PAGE_ENCODING "\n");
-	htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
-	htmlf("Expires: %s\n", http_date(item->st.st_mtime +
-					 ttl_seconds(item->ttl)));
+	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.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)
+{
 	html(cgit_doctype);
@@ -373,9 +376,9 @@ void cgit_print_docstart(char *title, struct cacheitem *item)
 	html("<title>");
-	html_txt(title);
+	html_txt(ctx->page.title);
 	html("</title>\n");
 	htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
-	if (cgit_robots && *cgit_robots)
-		htmlf("<meta name='robots' content='%s'/>\n", cgit_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(cgit_css);
+	html_attr(ctx->cfg.css);
 	html("'/>\n");
@@ -394,3 +397,3 @@ int print_branch_option(const char *refname, const unsigned char *sha1,
 	char *name = (char *)refname;
-	html_option(name, name, cgit_query_head);
+	html_option(name, name, ctx.qry.head);
 	return 0;
@@ -428,3 +431,3 @@ int print_archive_ref(const char *refname, const unsigned char *sha1,
 	}
-	url = cgit_pageurl(cgit_query_repo, "blob",
+	url = cgit_pageurl(ctx.qry.repo, "blob",
 			   fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
@@ -441,6 +444,6 @@ void add_hidden_formfields(int incl_head, int incl_search, char *page)
 
-	if (!cgit_virtual_root) {
-		url = fmt("%s/%s", cgit_query_repo, page);
-		if (cgit_query_path)
-			url = fmt("%s/%s", url, cgit_query_path);
+	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);
@@ -448,15 +451,15 @@ void add_hidden_formfields(int incl_head, int incl_search, char *page)
 
-	if (incl_head && strcmp(cgit_query_head, cgit_repo->defbranch))
-		html_hidden("h", cgit_query_head);
+	if (incl_head && strcmp(ctx.qry.head, ctx.repo->defbranch))
+		html_hidden("h", ctx.qry.head);
 
-	if (cgit_query_sha1)
-		html_hidden("id", cgit_query_sha1);
-	if (cgit_query_sha2)
-		html_hidden("id2", cgit_query_sha2);
+	if (ctx.qry.sha1)
+		html_hidden("id", ctx.qry.sha1);
+	if (ctx.qry.sha2)
+		html_hidden("id2", ctx.qry.sha2);
 
 	if (incl_search) {
-		if (cgit_query_grep)
-			html_hidden("qt", cgit_query_grep);
-		if (cgit_query_search)
-			html_hidden("q", cgit_query_search);
+		if (ctx.qry.grep)
+			html_hidden("qt", ctx.qry.grep);
+		if (ctx.qry.search)
+			html_hidden("q", ctx.qry.search);
 	}
@@ -464,3 +467,3 @@ void add_hidden_formfields(int incl_head, int incl_search, char *page)
 
-void cgit_print_pageheader(char *title, int show_search)
+void cgit_print_pageheader(struct cgit_context *ctx)
 {
@@ -476,26 +479,26 @@ void cgit_print_pageheader(char *title, int show_search)
 	htmlf("'><img src='%s' alt='cgit'/></a>\n",
-	      cgit_logo);
+	      ctx->cfg.logo);
 	html("</td></tr>\n<tr><td class='sidebar'>\n");
-	if (cgit_query_repo) {
+	if (ctx->repo) {
 		html("<h1 class='first'>");
-		html_txt(strrpart(cgit_repo->name, 20));
+		html_txt(strrpart(ctx->repo->name, 20));
 		html("</h1>\n");
-		html_txt(cgit_repo->desc);
-		if (cgit_repo->owner) {
+		html_txt(ctx->repo->desc);
+		if (ctx->repo->owner) {
 			html("<h1>owner</h1>\n");
-			html_txt(cgit_repo->owner);
+			html_txt(ctx->repo->owner);
 		}
 		html("<h1>navigate</h1>\n");
-		reporevlink(NULL, "summary", NULL, "menu", cgit_query_head,
+		reporevlink(NULL, "summary", NULL, "menu", ctx->qry.head,
 			    NULL, NULL);
-		cgit_log_link("log", NULL, "menu", cgit_query_head, NULL, NULL,
+		cgit_log_link("log", NULL, "menu", ctx->qry.head, NULL, NULL,
 			      0, NULL, NULL);
-		cgit_tree_link("tree", NULL, "menu", cgit_query_head,
-			       cgit_query_sha1, NULL);
-		cgit_commit_link("commit", NULL, "menu", cgit_query_head,
-			      cgit_query_sha1);
-		cgit_diff_link("diff", NULL, "menu", cgit_query_head,
-			       cgit_query_sha1, cgit_query_sha2, NULL);
-		cgit_patch_link("patch", NULL, "menu", cgit_query_head,
-				cgit_query_sha1);
+		cgit_tree_link("tree", NULL, "menu", ctx->qry.head,
+			       ctx->qry.sha1, NULL);
+		cgit_commit_link("commit", NULL, "menu", ctx->qry.head,
+			      ctx->qry.sha1);
+		cgit_diff_link("diff", NULL, "menu", ctx->qry.head,
+			       ctx->qry.sha1, ctx->qry.sha2, NULL);
+		cgit_patch_link("patch", NULL, "menu", ctx->qry.head,
+				ctx->qry.sha1);
 
@@ -503,9 +506,9 @@ void cgit_print_pageheader(char *title, int show_search)
 
-		if (cgit_repo->clone_url || cgit_clone_prefix) {
+		if (ctx->repo->clone_url || ctx->cfg.clone_prefix) {
 			html("<h1>clone</h1>\n");
-			if (cgit_repo->clone_url)
-				url = cgit_repo->clone_url;
+			if (ctx->repo->clone_url)
+				url = ctx->repo->clone_url;
 			else
-				url = fmt("%s%s", cgit_clone_prefix,
-					  cgit_repo->url);
+				url = fmt("%s%s", ctx->cfg.clone_prefix,
+					  ctx->repo->url);
 			html("<a class='menu' href='");
@@ -521,6 +524,6 @@ void cgit_print_pageheader(char *title, int show_search)
 		html("<form method='get' action=''>\n");
-		add_hidden_formfields(0, 1, cgit_query_page);
+		add_hidden_formfields(0, 1, ctx->qry.page);
 //		html("<table summary='branch selector' class='grid'><tr><td id='branch-dropdown-cell'>");
 		html("<select name='h' onchange='this.form.submit();'>\n");
-		for_each_branch_ref(print_branch_option, cgit_query_head);
+		for_each_branch_ref(print_branch_option, ctx->qry.head);
 		html("</select>\n");
@@ -533,5 +536,5 @@ void cgit_print_pageheader(char *title, int show_search)
 		html("<form method='get' action='");
-		if (cgit_virtual_root)
-			html_attr(cgit_fileurl(cgit_query_repo, "log",
-					       cgit_query_path, NULL));
+		if (ctx->cfg.virtual_root)
+			html_attr(cgit_fileurl(ctx->qry.repo, "log",
+					       ctx->qry.path, NULL));
 		html("'>\n");
@@ -539,8 +542,8 @@ void cgit_print_pageheader(char *title, int show_search)
 		html("<select name='qt'>\n");
-		html_option("grep", "log msg", cgit_query_grep);
-		html_option("author", "author", cgit_query_grep);
-		html_option("committer", "committer", cgit_query_grep);
+		html_option("grep", "log msg", ctx->qry.grep);
+		html_option("author", "author", ctx->qry.grep);
+		html_option("committer", "committer", ctx->qry.grep);
 		html("</select>\n");
 		html("<input class='txt' type='text' name='q' value='");
-		html_attr(cgit_query_search);
+		html_attr(ctx->qry.search);
 		html("'/>\n");
@@ -548,3 +551,3 @@ void cgit_print_pageheader(char *title, int show_search)
 	} else {
-		if (!cgit_index_info || html_include(cgit_index_info))
+		if (!ctx->cfg.index_info || html_include(ctx->cfg.index_info))
 			html(default_info);
@@ -557,14 +560,32 @@ void cgit_print_pageheader(char *title, int show_search)
 
-
-void cgit_print_snapshot_start(const char *mimetype, const char *filename,
-			       struct cacheitem *item)
+void cgit_print_filemode(unsigned short mode)
 {
-	htmlf("Content-Type: %s\n", mimetype);
-	htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
-	htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
-	htmlf("Expires: %s\n", http_date(item->st.st_mtime +
-					 ttl_seconds(item->ttl)));
-	html("\n");
+	if (S_ISDIR(mode))
+		html("d");
+	else if (S_ISLNK(mode))
+		html("l");
+	else if (S_ISGITLINK(mode))
+		html("m");
+	else
+		html("-");
+	html_fileperm(mode >> 6);
+	html_fileperm(mode >> 3);
+	html_fileperm(mode);
 }
 
-/* vim:set sw=8: */
+void cgit_print_snapshot_links(const char *repo, const char *head,
+			       const char *hex, int snapshots)
+{
+	const struct cgit_snapshot_format* f;
+    	char *filename;
+
+	for (f = cgit_snapshot_formats; f->suffix; f++) {
+		if (!(snapshots & f->bit))
+			continue;
+		filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
+			       f->suffix);
+		cgit_snapshot_link(filename, NULL, NULL, (char *)head,
+				   (char *)hex, filename);
+		html("<br/>");
+	}
+}
diff --git a/ui-shared.h b/ui-shared.h
new file mode 100644
index 0000000..94de884
--- a/dev/null
+++ b/ui-shared.h
@@ -0,0 +1,36 @@
+#ifndef UI_SHARED_H
+#define UI_SHARED_H
+
+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_tree_link(char *name, char *title, char *class, char *head,
+			   char *rev, char *path);
+extern void cgit_log_link(char *name, char *title, char *class, char *head,
+			  char *rev, char *path, int ofs, char *grep,
+			  char *pattern);
+extern void cgit_commit_link(char *name, char *title, char *class, char *head,
+			     char *rev);
+extern void cgit_refs_link(char *name, char *title, char *class, char *head,
+			   char *rev, char *path);
+extern void cgit_snapshot_link(char *name, char *title, char *class,
+			       char *head, char *rev, char *archivename);
+extern void cgit_diff_link(char *name, char *title, char *class, char *head,
+			   char *new_rev, char *old_rev, char *path);
+extern void cgit_object_link(struct object *obj);
+
+extern void cgit_print_error(char *msg);
+extern void cgit_print_date(time_t secs, char *format);
+extern void cgit_print_age(time_t t, time_t max_relative, char *format);
+extern void cgit_print_http_headers(struct cgit_context *ctx);
+extern void cgit_print_docstart(struct cgit_context *ctx);
+extern void cgit_print_docend();
+extern void cgit_print_pageheader(struct cgit_context *ctx);
+extern void cgit_print_filemode(unsigned short mode);
+extern void cgit_print_snapshot_links(const char *repo, const char *head,
+				      const char *hex, int snapshots);
+
+#endif /* UI_SHARED_H */
diff --git a/ui-snapshot.c b/ui-snapshot.c
index dfedd8f..966a140 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -9,2 +9,4 @@
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
@@ -56,8 +58,3 @@ static int write_tar_bzip2_archive(struct archiver_args *args)
 
-static const struct snapshot_archive_t {
-    	const char *suffix;
-	const char *mimetype;
-	write_archive_fn_t write_func;
-	int bit;
-}	snapshot_archives[] = {
+const struct cgit_snapshot_format cgit_snapshot_formats[] = {
 	{ ".zip", "application/x-zip", write_zip_archive, 0x1 },
@@ -65,12 +62,10 @@ static const struct snapshot_archive_t {
 	{ ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 },
-	{ ".tar", "application/x-tar", write_tar_archive, 0x8 }
+	{ ".tar", "application/x-tar", write_tar_archive, 0x8 },
+	{}
 };
 
-#define snapshot_archives_len (sizeof(snapshot_archives) / sizeof(*snapshot_archives))
-
-void cgit_print_snapshot(struct cacheitem *item, const char *head,
+static int make_snapshot(const struct cgit_snapshot_format *format,
 			 const char *hex, const char *prefix,
-			 const char *filename, int snapshots)
+			 const char *filename)
 {
-	const struct snapshot_archive_t* sat;
 	struct archiver_args args;
@@ -78,80 +73,42 @@ void cgit_print_snapshot(struct cacheitem *item, const char *head,
 	unsigned char sha1[20];
-	int f, sl, fnl = strlen(filename);
 
-	for(f=0; f<snapshot_archives_len; f++) {
-		sat = &snapshot_archives[f];
-		if(!(snapshots & sat->bit))
-			continue;
-		sl = strlen(sat->suffix);
-		if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
-			continue;
-		if (!hex)
-			hex = head;
-		if(get_sha1(hex, sha1)) {
-			cgit_print_error(fmt("Bad object id: %s", hex));
-			return;
-		}
-		commit = lookup_commit_reference(sha1);
-		if(!commit) {
-			cgit_print_error(fmt("Not a commit reference: %s", hex));
-			return;;
-		}
-		memset(&args,0,sizeof(args));
-		args.base = fmt("%s/", prefix);
-		args.tree = commit->tree;
-		args.time = commit->date;
-		cgit_print_snapshot_start(sat->mimetype, filename, item);
-		(*sat->write_func)(&args);
-		return;
+	if(get_sha1(hex, sha1)) {
+		cgit_print_error(fmt("Bad object id: %s", hex));
+		return 1;
 	}
-	cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
-}
-
-void cgit_print_snapshot_links(const char *repo, const char *head,
-			       const char *hex, int snapshots)
-{
-	const struct snapshot_archive_t* sat;
-    	char *filename;
-	int f;
-
-	for(f=0; f<snapshot_archives_len; f++) {
-		sat = &snapshot_archives[f];
-		if(!(snapshots & sat->bit))
-			continue;
-		filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
-			       sat->suffix);
-		cgit_snapshot_link(filename, NULL, NULL, (char *)head,
-				   (char *)hex, filename);
-		html("<br/>");
+	commit = lookup_commit_reference(sha1);
+	if(!commit) {
+		cgit_print_error(fmt("Not a commit reference: %s", hex));
+		return 1;
 	}
+	memset(&args, 0, sizeof(args));
+	args.base = fmt("%s/", prefix);
+	args.tree = commit->tree;
+	args.time = commit->date;
+	ctx.page.mimetype = xstrdup(format->mimetype);
+	ctx.page.filename = xstrdup(filename);
+	cgit_print_http_headers(&ctx);
+	format->write_func(&args);
+	return 0;
 }
 
-int cgit_parse_snapshots_mask(const char *str)
+void cgit_print_snapshot(const char *head, const char *hex, const char *prefix,
+			 const char *filename, int snapshots)
 {
-	const struct snapshot_archive_t* sat;
-	static const char *delim = " \t,:/|;";
-	int f, tl, sl, rv = 0;
-
-	/* favor legacy setting */
-	if(atoi(str))
-		return 1;
-	for(;;) {
-		str += strspn(str,delim);
-		tl = strcspn(str,delim);
-		if(!tl)
-			break;
-		for(f=0; f<snapshot_archives_len; f++) {
-			sat = &snapshot_archives[f];
-			sl = strlen(sat->suffix);
-			if((tl == sl && !strncmp(sat->suffix, str, tl)) ||
-			   (tl == sl-1 && !strncmp(sat->suffix+1, str, tl-1))) {
-				rv |= sat->bit;
-				break;
-			}
-		}
-		str += tl;
+	const struct cgit_snapshot_format* f;
+	int sl, fnl;
+
+	fnl = strlen(filename);
+	if (!hex)
+		hex = head;
+	for (f = cgit_snapshot_formats; f->suffix; f++) {
+		if (!(snapshots & f->bit))
+			continue;
+		sl = strlen(f->suffix);
+		if(fnl < sl || strcmp(&filename[fnl-sl], f->suffix))
+			continue;
+		make_snapshot(f, hex, prefix, filename);
+		return;
 	}
-	return rv;
+	cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
 }
-
-/* vim:set sw=8: */
diff --git a/ui-snapshot.h b/ui-snapshot.h
new file mode 100644
index 0000000..6e03761
--- a/dev/null
+++ b/ui-snapshot.h
@@ -0,0 +1,8 @@
+#ifndef UI_SNAPSHOT_H
+#define UI_SNAPSHOT_H
+
+extern void cgit_print_snapshot(const char *head, const char *hex,
+				const char *prefix, const char *filename,
+				int snapshot);
+
+#endif /* UI_SNAPSHOT_H */
diff --git a/ui-summary.c b/ui-summary.c
index b96414e..0b66b52 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -9,174 +9,5 @@
 #include "cgit.h"
-
-static int header;
-
-static int cmp_age(int age1, int age2)
-{
-	if (age1 != 0 && age2 != 0)
-		return age2 - age1;
-
-	if (age1 == 0 && age2 == 0)
-		return 0;
-
-	if (age1 == 0)
-		return +1;
-
-	return -1;
-}
-
-static int cmp_ref_name(const void *a, const void *b)
-{
-	struct refinfo *r1 = *(struct refinfo **)a;
-	struct refinfo *r2 = *(struct refinfo **)b;
-
-	return strcmp(r1->refname, r2->refname);
-}
-
-static int cmp_branch_age(const void *a, const void *b)
-{
-	struct refinfo *r1 = *(struct refinfo **)a;
-	struct refinfo *r2 = *(struct refinfo **)b;
-
-	return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
-}
-
-static int cmp_tag_age(const void *a, const void *b)
-{
-	struct refinfo *r1 = *(struct refinfo **)a;
-	struct refinfo *r2 = *(struct refinfo **)b;
-
-	return cmp_age(r1->tag->tagger_date, r2->tag->tagger_date);
-}
-
-static int print_branch(struct refinfo *ref)
-{
-	struct commitinfo *info = ref->commit;
-	char *name = (char *)ref->refname;
-
-	if (!info)
-		return 1;
-	html("<tr><td>");
-	cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL);
-	html("</td><td>");
-
-	if (ref->object->type == OBJ_COMMIT) {
-		cgit_print_age(info->commit->date, -1, NULL);
-		html("</td><td>");
-		html_txt(info->author);
-		html("</td><td>");
-		cgit_commit_link(info->subject, NULL, NULL, name, NULL);
-	} else {
-		html("</td><td></td><td>");
-		cgit_object_link(ref->object);
-	}
-	html("</td></tr>\n");
-	return 0;
-}
-
-static void print_tag_header()
-{
-	html("<tr class='nohover'><th class='left'>Tag</th>"
-	     "<th class='left'>Age</th>"
-	     "<th class='left'>Author</th>"
-	     "<th class='left'>Reference</th></tr>\n");
-	header = 1;
-}
-
-static int print_tag(struct refinfo *ref)
-{
-	struct tag *tag;
-	struct taginfo *info;
-	char *url, *name = (char *)ref->refname;
-
-	if (ref->object->type == OBJ_TAG) {
-		tag = (struct tag *)ref->object;
-		info = ref->tag;
-		if (!tag || !info)
-			return 1;
-		html("<tr><td>");
-		url = cgit_pageurl(cgit_query_repo, "tag",
-				   fmt("id=%s", name));
-		html_link_open(url, NULL, NULL);
-		html_txt(name);
-		html_link_close();
-		html("</td><td>");
-		if (info->tagger_date > 0)
-			cgit_print_age(info->tagger_date, -1, NULL);
-		html("</td><td>");
-		if (info->tagger)
-			html(info->tagger);
-		html("</td><td>");
-		cgit_object_link(tag->tagged);
-		html("</td></tr>\n");
-	} else {
-		if (!header)
-			print_tag_header();
-		html("<tr><td>");
-		html_txt(name);
-		html("</td><td colspan='2'/><td>");
-		cgit_object_link(ref->object);
-		html("</td></tr>\n");
-	}
-	return 0;
-}
-
-static void print_refs_link(char *path)
-{
-	html("<tr class='nohover'><td colspan='4'>");
-	cgit_refs_link("[...]", NULL, NULL, cgit_query_head, NULL, path);
-	html("</td></tr>");
-}
-
-void cgit_print_branches(int maxcount)
-{
-	struct reflist list;
-	int i;
-
-	html("<tr class='nohover'><th class='left'>Branch</th>"
-	     "<th class='left'>Idle</th>"
-	     "<th class='left'>Author</th>"
-	     "<th class='left'>Head commit</th></tr>\n");
-
-	list.refs = NULL;
-	list.alloc = list.count = 0;
-	for_each_branch_ref(cgit_refs_cb, &list);
-
-	if (maxcount == 0 || maxcount > list.count)
-		maxcount = list.count;
-
-	if (maxcount < list.count) {
-		qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
-		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
-	}
-
-	for(i=0; i<maxcount; i++)
-		print_branch(list.refs[i]);
-
-	if (maxcount < list.count)
-		print_refs_link("heads");
-}
-
-void cgit_print_tags(int maxcount)
-{
-	struct reflist list;
-	int i;
-
-	header = 0;
-	list.refs = NULL;
-	list.alloc = list.count = 0;
-	for_each_tag_ref(cgit_refs_cb, &list);
-	if (list.count == 0)
-		return;
-	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
-	if (!maxcount)
-		maxcount = list.count;
-	else if (maxcount > list.count)
-		maxcount = list.count;
-	print_tag_header();
-	for(i=0; i<maxcount; i++)
-		print_tag(list.refs[i]);
-
-	if (maxcount < list.count)
-		print_refs_link("tags");
-}
+#include "html.h"
+#include "ui-log.h"
+#include "ui-refs.h"
 
@@ -184,16 +15,16 @@ void cgit_print_summary()
 {
-	if (cgit_repo->readme) {
+	if (ctx.repo->readme) {
 		html("<div id='summary'>");
-		html_include(cgit_repo->readme);
+		html_include(ctx.repo->readme);
 		html("</div>");
 	}
-	if (cgit_summary_log > 0)
-		cgit_print_log(cgit_query_head, 0, cgit_summary_log, NULL,
+	if (ctx.cfg.summary_log > 0)
+		cgit_print_log(ctx.qry.head, 0, ctx.cfg.summary_log, NULL,
 			       NULL, NULL, 0);
 	html("<table summary='repository info' class='list nowrap'>");
-	if (cgit_summary_log > 0)
+	if (ctx.cfg.summary_log > 0)
 		html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
-	cgit_print_branches(cgit_summary_branches);
+	cgit_print_branches(ctx.cfg.summary_branches);
 	html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
-	cgit_print_tags(cgit_summary_tags);
+	cgit_print_tags(ctx.cfg.summary_tags);
 	html("</table>");
diff --git a/ui-summary.h b/ui-summary.h
new file mode 100644
index 0000000..37aedd2
--- a/dev/null
+++ b/ui-summary.h
@@ -0,0 +1,6 @@
+#ifndef UI_SUMMARY_H
+#define UI_SUMMARY_H
+
+extern void cgit_print_summary();
+
+#endif /* UI_SUMMARY_H */
diff --git a/ui-tag.c b/ui-tag.c
index 6d761f3..ab2c66d 100644
--- a/ui-tag.c
+++ b/ui-tag.c
@@ -9,3 +9,4 @@
 #include "cgit.h"
-
+#include "html.h"
+#include "ui-shared.h"
 
diff --git a/ui-tag.h b/ui-tag.h
new file mode 100644
index 0000000..d295cdc
--- a/dev/null
+++ b/ui-tag.h
@@ -0,0 +1,6 @@
+#ifndef UI_TAG_H
+#define UI_TAG_H
+
+extern void cgit_print_tag(char *revname);
+
+#endif /* UI_TAG_H */
diff --git a/ui-tree.c b/ui-tree.c
index c138877..9be3140 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -9,2 +9,4 @@
 #include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
@@ -36,3 +38,3 @@ static void print_object(const unsigned char *sha1, char *path)
 	html(" blob: <a href='");
-	html_attr(cgit_pageurl(cgit_query_repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
+	html_attr(cgit_pageurl(ctx.qry.repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
 	htmlf("'>%s</a>",sha1_to_hex(sha1));
@@ -69,4 +71,4 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 	name = xstrdup(pathname);
-	fullpath = fmt("%s%s%s", cgit_query_path ? cgit_query_path : "",
-		       cgit_query_path ? "/" : "", name);
+	fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
+		       ctx.qry.path ? "/" : "", name);
 
@@ -81,3 +83,3 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 	html("<tr><td class='ls-mode'>");
-	html_filemode(mode);
+	cgit_print_filemode(mode);
 	html("</td><td>");
@@ -85,3 +87,3 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 		htmlf("<a class='ls-mod' href='");
-		html_attr(fmt(cgit_repo->module_link,
+		html_attr(fmt(ctx.repo->module_link,
 			      name,
@@ -92,6 +94,6 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 	} else if (S_ISDIR(mode)) {
-		cgit_tree_link(name, NULL, "ls-dir", cgit_query_head,
+		cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 			       curr_rev, fullpath);
 	} else {
-		cgit_tree_link(name, NULL, "ls-blob", cgit_query_head,
+		cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 			       curr_rev, fullpath);
@@ -101,3 +103,3 @@ static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 	html("<td>");
-	cgit_log_link("log", NULL, "button", cgit_query_head, curr_rev,
+	cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 		      fullpath, 0, NULL, NULL);
@@ -155,6 +157,6 @@ static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 		strcpy(buffer+baselen, pathname);
-		url = cgit_pageurl(cgit_query_repo, "tree",
+		url = cgit_pageurl(ctx.qry.repo, "tree",
 				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
 		html("/");
-		cgit_tree_link(xstrdup(pathname), NULL, NULL, cgit_query_head,
+		cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 			       curr_rev, buffer);
@@ -190,3 +192,3 @@ void cgit_print_tree(const char *rev, char *path)
 	if (!rev)
-		rev = cgit_query_head;
+		rev = ctx.qry.head;
 
@@ -204,3 +206,3 @@ void cgit_print_tree(const char *rev, char *path)
 	html("path: <a href='");
-	html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("h=%s", rev)));
+	html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 	html("'>root</a>");
diff --git a/ui-tree.h b/ui-tree.h
new file mode 100644
index 0000000..bbd34e3
--- a/dev/null
+++ b/ui-tree.h
@@ -0,0 +1,6 @@
+#ifndef UI_TREE_H
+#define UI_TREE_H
+
+extern void cgit_print_tree(const char *rev, char *path);
+
+#endif /* UI_TREE_H */