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
@@ -1,5 +1,6 @@
 # Files I don't care to see in git-status/commit
 cgit
 cgit.conf
 VERSION
 *.o
+*.d
diff --git a/Makefile b/Makefile
index 8bf47f2..931c60e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,83 +1,136 @@
 CGIT_VERSION = v0.7.2
 CGIT_SCRIPT_NAME = cgit.cgi
 CGIT_SCRIPT_PATH = /var/www/htdocs/cgit
 CGIT_CONFIG = /etc/cgitrc
 CACHE_ROOT = /var/cache/cgit
 SHA1_HEADER = <openssl/sha.h>
 GIT_VER = 1.5.5.rc1
 GIT_URL = http://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.bz2
 
 #
 # Let the user override the above settings.
 #
 -include cgit.conf
 
+#
+# 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
         EXTLIBS += -liconv
 endif
 
 
 .PHONY: all git test install clean distclean emptycache force-version get-git
 
 all: cgit git
 
 VERSION: force-version
         @./gen-version.sh "$(CGIT_VERSION)"
 -include VERSION
 
 
 CFLAGS += -g -Wall -Igit
 CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER)'
 CFLAGS += -DCGIT_VERSION='"$(CGIT_VERSION)"'
 CFLAGS += -DCGIT_CONFIG='"$(CGIT_CONFIG)"'
 CFLAGS += -DCGIT_SCRIPT_NAME='"$(CGIT_SCRIPT_NAME)"'
 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)
 
 git/xdiff/lib.a: | git
 
 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
 
 install: all
         mkdir -p $(DESTDIR)$(CGIT_SCRIPT_PATH)
         install cgit $(DESTDIR)$(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
         install cgit.css $(DESTDIR)$(CGIT_SCRIPT_PATH)/cgit.css
         install cgit.png $(DESTDIR)$(CGIT_SCRIPT_PATH)/cgit.png
 
 uninstall:
         rm -f $(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
         rm -f $(CGIT_SCRIPT_PATH)/cgit.css
         rm -f $(CGIT_SCRIPT_PATH)/cgit.png
 
 clean:
-        rm -f cgit VERSION *.o
+        rm -f cgit VERSION *.o *.d
         cd git && $(MAKE) clean
 
 distclean: clean
         git clean -d -x
         cd git && git clean -d -x
 
 emptycache:
         rm -rf $(DESTDIR)$(CACHE_ROOT)/*
 
 get-git:
         curl $(GIT_URL) | tar -xj && rm -rf git && mv git-$(GIT_VER) git
diff --git a/cache.c b/cache.c
index 372e38d..89f7ecd 100644
--- a/cache.c
+++ b/cache.c
@@ -1,119 +1,120 @@
 /* cache.c: cache management
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
+#include "cache.h"
 
 const int NOLOCK = -1;
 
 char *cache_safe_filename(const char *unsafe)
 {
         static char buf[4][PATH_MAX];
         static int bufidx;
         char *s;
         char c;
 
         bufidx++;
         bufidx &= 3;
         s = buf[bufidx];
 
         while(unsafe && (c = *unsafe++) != 0) {
                 if (c == '/' || c == ' ' || c == '&' || c == '|' ||
                     c == '>' || c == '<' || c == '.')
                         c = '_';
                 *s++ = c;
         }
         *s = '\0';
         return buf[bufidx];
 }
 
 int cache_exist(struct cacheitem *item)
 {
         if (stat(item->name, &item->st)) {
                 item->st.st_mtime = 0;
                 return 0;
         }
         return 1;
 }
 
 int cache_create_dirs()
 {
         char *path;
 
-        path = fmt("%s", cgit_cache_root);
+        path = fmt("%s", ctx.cfg.cache_root);
         if (mkdir(path, S_IRWXU) && errno!=EEXIST)
                 return 0;
 
-        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));
 
         if (mkdir(path, S_IRWXU) && errno!=EEXIST)
                 return 0;
 
-        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)
                         return 0;
         }
         return 1;
 }
 
 int cache_refill_overdue(const char *lockfile)
 {
         struct stat st;
 
         if (stat(lockfile, &st))
                 return 0;
         else
-                return (time(NULL) - st.st_mtime > cgit_cache_max_create_time);
+                return (time(NULL) - st.st_mtime > ctx.cfg.cache_max_create_time);
 }
 
 int cache_lock(struct cacheitem *item)
 {
         int i = 0;
         char *lockfile = xstrdup(fmt("%s.lock", item->name));
 
  top:
-        if (++i > cgit_max_lock_attempts)
+        if (++i > ctx.cfg.max_lock_attempts)
                 die("cache_lock: unable to lock %s: %s",
                     item->name, strerror(errno));
 
                item->fd = open(lockfile, O_WRONLY|O_CREAT|O_EXCL, S_IRUSR|S_IWUSR);
 
         if (item->fd == NOLOCK && errno == ENOENT && cache_create_dirs())
                 goto top;
 
         if (item->fd == NOLOCK && errno == EEXIST &&
             cache_refill_overdue(lockfile) && !unlink(lockfile))
                         goto top;
 
         free(lockfile);
         return (item->fd > 0);
 }
 
 int cache_unlock(struct cacheitem *item)
 {
         close(item->fd);
         return (rename(fmt("%s.lock", item->name), item->name) == 0);
 }
 
 int cache_cancel_lock(struct cacheitem *item)
 {
         return (unlink(fmt("%s.lock", item->name)) == 0);
 }
 
 int cache_expired(struct cacheitem *item)
 {
         if (item->ttl < 0)
                 return 0;
         return item->st.st_mtime + item->ttl * 60 < time(NULL);
 }
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
@@ -1,318 +1,459 @@
 /* cgit.c: cgi for the git scm
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #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;
+}
 
 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();
                 return 0;
         }
 
-        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;
         }
 
-        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;
         }
         return 1;
 }
 
 struct refmatch {
         char *req_ref;
         char *first_ref;
         int match;
 };
 
 int find_current_ref(const char *refname, const unsigned char *sha1,
                      int flags, void *cb_data)
 {
         struct refmatch *info;
 
         info = (struct refmatch *)cb_data;
         if (!strcmp(refname, info->req_ref))
                 info->match = 1;
         if (!info->first_ref)
                 info->first_ref = xstrdup(refname);
         return info->match;
 }
 
-char *find_default_branch(struct repoinfo *repo)
+char *find_default_branch(struct cgit_repo *repo)
 {
         struct refmatch info;
 
         info.req_ref = repo->defbranch;
         info.first_ref = NULL;
         info.match = 0;
         for_each_branch_ref(find_current_ref, &info);
         if (info.match)
                 return info.req_ref;
         else
                 return info.first_ref;
 }
 
-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;
         }
 
-        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;
 }
 
 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) {
                 stdout2 = chk_positive(dup(STDOUT_FILENO),
                                        "Preserving STDOUT");
                 chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
                 chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
         }
 
-        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);
 
         if (use_cache) {
                 chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
                 chk_positive(dup2(stdout2, STDOUT_FILENO),
                              "Restoring original STDOUT");
                 chk_zero(close(stdout2), "Closing temporary STDOUT");
         }
-
-        chdir(buf);
 }
 
 static void cgit_check_cache(struct cacheitem *item)
 {
         int i = 0;
 
  top:
-        if (++i > cgit_max_lock_attempts) {
+        if (++i > ctx.cfg.max_lock_attempts) {
                 die("cgit_refresh_cache: unable to lock %s: %s",
                     item->name, strerror(errno));
         }
         if (!cache_exist(item)) {
                 if (!cache_lock(item)) {
                         sleep(1);
                         goto top;
                 }
                 if (!cache_exist(item)) {
                         cgit_fill_cache(item, 1);
                         cache_unlock(item);
                 } else {
                         cache_cancel_lock(item);
                 }
         } else if (cache_expired(item) && cache_lock(item)) {
                 if (cache_expired(item)) {
                         cgit_fill_cache(item, 1);
                         cache_unlock(item);
                 } else {
                         cache_cancel_lock(item);
                 }
         }
 }
 
 static void cgit_print_cache(struct cacheitem *item)
 {
         static char buf[4096];
         ssize_t i;
 
         int fd = open(item->name, O_RDONLY);
         if (fd<0)
                 die("Unable to open cached file %s", item->name);
 
         while((i=read(fd, buf, sizeof(buf))) > 0)
                 write(STDOUT_FILENO, buf, i);
 
         close(fd);
 }
 
 static void cgit_parse_args(int argc, const char **argv)
 {
         int i;
 
         for (i = 1; i < argc; i++) {
                 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);
                 }
         }
 }
 
 int main(int argc, const char **argv)
 {
         struct cacheitem item;
         const char *cgit_config_env = getenv("CGIT_CONFIG");
 
-        htmlfd = STDOUT_FILENO;
+        prepare_context(&ctx);
         item.st.st_mtime = time(NULL);
         cgit_repolist.length = 0;
         cgit_repolist.count = 0;
         cgit_repolist.repos = NULL;
 
-        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);
         } else {
                 cgit_check_cache(&item);
                 cgit_print_cache(&item);
         }
         return 0;
 }
diff --git a/cgit.h b/cgit.h
index 66c40b9..ee8c716 100644
--- a/cgit.h
+++ b/cgit.h
@@ -1,295 +1,224 @@
 #ifndef CGIT_H
 #define CGIT_H
 
 
 #include <git-compat-util.h>
 #include <cache.h>
 #include <grep.h>
 #include <object.h>
 #include <tree.h>
 #include <commit.h>
 #include <tag.h>
 #include <diff.h>
 #include <diffcore.h>
 #include <refs.h>
 #include <revision.h>
 #include <log-tree.h>
 #include <archive.h>
 #include <xdiff/xdiff.h>
 #include <utf8.h>
 
 
 /*
- * 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
  */
 #define FMT_LONGDATE "%Y-%m-%d %H:%M:%S"
 #define FMT_SHORTDATE "%Y-%m-%d"
 
 
 /*
  * Limits used for relative dates
  */
 #define TM_MIN    60
 #define TM_HOUR  (TM_MIN * 60)
 #define TM_DAY   (TM_HOUR * 24)
 #define TM_WEEK  (TM_DAY * 7)
 #define TM_YEAR  (TM_DAY * 365)
 #define TM_MONTH (TM_YEAR / 12.0)
 
 
 /*
  * Default encoding
  */
 #define PAGE_ENCODING "UTF-8"
 
 typedef void (*configfn)(const char *name, const char *value);
 typedef void (*filepair_fn)(struct diff_filepair *pair);
 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;
         char *name;
         char *path;
         char *desc;
         char *owner;
         char *defbranch;
         char *group;
         char *module_link;
         char *readme;
         char *clone_url;
         int snapshots;
         int enable_log_filecount;
         int enable_log_linecount;
 };
 
-struct repolist {
+struct cgit_repolist {
         int length;
         int count;
-        struct repoinfo *repos;
+        struct cgit_repo *repos;
 };
 
 struct commitinfo {
         struct commit *commit;
         char *author;
         char *author_email;
         unsigned long author_date;
         char *committer;
         char *committer_email;
         unsigned long committer_date;
         char *subject;
         char *msg;
         char *msg_encoding;
 };
 
 struct taginfo {
         char *tagger;
         char *tagger_email;
         int tagger_date;
         char *msg;
 };
 
 struct refinfo {
         const char *refname;
         struct object *object;
         union {
                 struct taginfo *tag;
                 struct commitinfo *commit;
         };
 };
 
 struct reflist {
         struct refinfo **refs;
         int alloc;
         int count;
 };
 
+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);
 
 extern int chk_zero(int result, char *msg);
 extern int chk_positive(int result, char *msg);
 extern int chk_non_negative(int result, char *msg);
 
-extern int hextoint(char c);
 extern char *trim_end(const char *str, char c);
 extern char *strlpart(char *txt, int maxlen);
 extern char *strrpart(char *txt, int maxlen);
 
 extern void cgit_add_ref(struct reflist *list, struct refinfo *ref);
 extern int cgit_refs_cb(const char *refname, const unsigned char *sha1,
                         int flags, void *cb_data);
 
 extern void *cgit_free_commitinfo(struct commitinfo *info);
 
 extern int cgit_diff_files(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            filepair_fn fn, const char *prefix);
 
 extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);
 
 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);
 extern struct taginfo *cgit_parse_tag(struct tag *tag);
 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);
 
 #endif /* CGIT_H */
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
@@ -1,184 +1,241 @@
 /* html.c: helper functions for html output
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
-#include "cgit.h"
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+int htmlfd = STDOUT_FILENO;
 
 char *fmt(const char *format, ...)
 {
         static char buf[8][1024];
         static int bufidx;
         int len;
         va_list args;
 
         bufidx++;
         bufidx &= 7;
 
         va_start(args, format);
         len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
         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];
 }
 
 void html(const char *txt)
 {
         write(htmlfd, txt, strlen(txt));
 }
 
 void htmlf(const char *format, ...)
 {
         static char buf[65536];
         va_list args;
 
         va_start(args, format);
         vsnprintf(buf, sizeof(buf), format, args);
         va_end(args);
         html(buf);
 }
 
 void html_txt(char *txt)
 {
         char *t = txt;
         while(t && *t){
                 int c = *t;
                 if (c=='<' || c=='>' || c=='&') {
                         write(htmlfd, txt, t - txt);
                         if (c=='>')
                                 html("&gt;");
                         else if (c=='<')
                                 html("&lt;");
                         else if (c=='&')
                                 html("&amp;");
                         txt = t+1;
                 }
                 t++;
         }
         if (t!=txt)
                 html(txt);
 }
 
 void html_ntxt(int len, char *txt)
 {
         char *t = txt;
         while(t && *t && len--){
                 int c = *t;
                 if (c=='<' || c=='>' || c=='&') {
                         write(htmlfd, txt, t - txt);
                         if (c=='>')
                                 html("&gt;");
                         else if (c=='<')
                                 html("&lt;");
                         else if (c=='&')
                                 html("&amp;");
                         txt = t+1;
                 }
                 t++;
         }
         if (t!=txt)
                 write(htmlfd, txt, t - txt);
         if (len<0)
                 html("...");
 }
 
 void html_attr(char *txt)
 {
         char *t = txt;
         while(t && *t){
                 int c = *t;
                 if (c=='<' || c=='>' || c=='\'') {
                         write(htmlfd, txt, t - txt);
                         if (c=='>')
                                 html("&gt;");
                         else if (c=='<')
                                 html("&lt;");
                         else if (c=='\'')
                                 html("&quote;");
                         txt = t+1;
                 }
                 t++;
         }
         if (t!=txt)
                 html(txt);
 }
 
 void html_hidden(char *name, char *value)
 {
         html("<input type='hidden' name='");
         html_attr(name);
         html("' value='");
         html_attr(value);
         html("'/>");
 }
 
 void html_option(char *value, char *text, char *selected_value)
 {
         html("<option value='");
         html_attr(value);
         html("'");
         if (selected_value && !strcmp(selected_value, value))
                 html(" selected='selected'");
         html(">");
         html_txt(text);
         html("</option>\n");
 }
 
 void html_link_open(char *url, char *title, char *class)
 {
         html("<a href='");
         html_attr(url);
         if (title) {
                 html("' title='");
                 html_attr(title);
         }
         if (class) {
                 html("' class='");
                 html_attr(class);
         }
         html("'>");
 }
 
 void html_link_close(void)
 {
         html("</a>");
 }
 
 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' : '-'));
 }
 
-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)
 {
         FILE *f;
         char buf[4096];
         size_t len;
 
         if (!(f = fopen(filename, "r")))
                 return -1;
         while((len = fread(buf, 1, 4096, f)) > 0)
                 write(htmlfd, buf, len);
         fclose(f);
         return 0;
 }
+
+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
@@ -1,332 +1,208 @@
 /* config.c: parsing of config files
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.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 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;
-}
-
 /*
  * url syntax: [repo ['/' cmd [ '/' path]]]
  *   repo: any valid repo url, may contain '/'
  *   cmd:  log | commit | diff | tree | view | blob | snapshot
  *   path: any valid path, may contain '/'
  *
  */
 void cgit_parse_url(const char *url)
 {
         char *cmd, *p;
 
-        cgit_repo = NULL;
+        ctx.repo = NULL;
         if (!url || url[0] == '\0')
                 return;
 
-        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;
         }
 
         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] = '/';
                         cmd = strchr(cmd + 1, '/');
                         continue;
                 }
 
-                cgit_query_repo = cgit_repo->url;
+                ctx.qry.repo = ctx.repo->url;
                 p = strchr(cmd + 1, '/');
                 if (p) {
                         p[0] = '\0';
                         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;
         }
 }
 
 char *substr(const char *head, const char *tail)
 {
         char *buf;
 
         buf = xmalloc(tail - head + 1);
         strncpy(buf, head, tail - head);
         buf[tail - head] = '\0';
         return buf;
 }
 
 struct commitinfo *cgit_parse_commit(struct commit *commit)
 {
         struct commitinfo *ret;
         char *p = commit->buffer, *t = commit->buffer;
 
         ret = xmalloc(sizeof(*ret));
         ret->commit = commit;
         ret->author = NULL;
         ret->author_email = NULL;
         ret->committer = NULL;
         ret->committer_email = NULL;
         ret->subject = NULL;
         ret->msg = NULL;
         ret->msg_encoding = NULL;
 
         if (p == NULL)
                 return ret;
 
         if (strncmp(p, "tree ", 5))
                 die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
         else
                 p += 46; // "tree " + hex[40] + "\n"
 
         while (!strncmp(p, "parent ", 7))
                 p += 48; // "parent " + hex[40] + "\n"
 
         if (!strncmp(p, "author ", 7)) {
                 p += 7;
                 t = strchr(p, '<') - 1;
                 ret->author = substr(p, t);
                 p = t;
                 t = strchr(t, '>') + 1;
                 ret->author_email = substr(p, t);
                 ret->author_date = atol(t+1);
                 p = strchr(t, '\n') + 1;
         }
 
         if (!strncmp(p, "committer ", 9)) {
                 p += 9;
                 t = strchr(p, '<') - 1;
                 ret->committer = substr(p, t);
                 p = t;
                 t = strchr(t, '>') + 1;
                 ret->committer_email = substr(p, t);
                 ret->committer_date = atol(t+1);
                 p = strchr(t, '\n') + 1;
         }
 
         if (!strncmp(p, "encoding ", 9)) {
                 p += 9;
                 t = strchr(p, '\n') + 1;
                 ret->msg_encoding = substr(p, t);
                 p = t;
         } else
                 ret->msg_encoding = xstrdup(PAGE_ENCODING);
 
         while (*p && (*p != '\n'))
                 p = strchr(p, '\n') + 1; // skip unknown header fields
 
         while (*p == '\n')
                 p = strchr(p, '\n') + 1;
 
         t = strchr(p, '\n');
         if (t) {
                 if (*t == '\0')
                         ret->subject = "** empty **";
                 else
                         ret->subject = substr(p, t);
                 p = t + 1;
 
                 while (*p == '\n')
                         p = strchr(p, '\n') + 1;
                 ret->msg = xstrdup(p);
         } else
                 ret->subject = substr(p, p+strlen(p));
 
         if(strcmp(ret->msg_encoding, PAGE_ENCODING)) {
                 t = reencode_string(ret->subject, PAGE_ENCODING,
                                     ret->msg_encoding);
                 if(t) {
                         free(ret->subject);
                         ret->subject = t;
                 }
 
                 t = reencode_string(ret->msg, PAGE_ENCODING,
                                     ret->msg_encoding);
                 if(t) {
                         free(ret->msg);
                         ret->msg = t;
                 }
         }
 
         return ret;
 }
 
 
 struct taginfo *cgit_parse_tag(struct tag *tag)
 {
         void *data;
         enum object_type type;
         unsigned long size;
         char *p, *t;
         struct taginfo *ret;
 
         data = read_sha1_file(tag->object.sha1, &type, &size);
         if (!data || type != OBJ_TAG) {
                 free(data);
                 return 0;
         }
 
         ret = xmalloc(sizeof(*ret));
         ret->tagger = NULL;
         ret->tagger_email = NULL;
         ret->tagger_date = 0;
         ret->msg = NULL;
 
         p = data;
 
         while (p && *p) {
                 if (*p == '\n')
                         break;
 
                 if (!strncmp(p, "tagger ", 7)) {
                         p += 7;
                         t = strchr(p, '<') - 1;
                         ret->tagger = substr(p, t);
                         p = t;
                         t = strchr(t, '>') + 1;
                         ret->tagger_email = substr(p, t);
                         ret->tagger_date = atol(t+1);
                 }
                 p = strchr(p, '\n') + 1;
         }
 
         while (p && *p && (*p != '\n'))
                 p = strchr(p, '\n') + 1; // skip unknown tag fields
 
         while (p && (*p == '\n'))
                 p = strchr(p, '\n') + 1;
         if (p && *p)
                 ret->msg = xstrdup(p);
         free(data);
         return ret;
 }
diff --git a/shared.c b/shared.c
index f063894..f5875e4 100644
--- a/shared.c
+++ b/shared.c
@@ -1,521 +1,344 @@
 /* shared.c: global vars + some callback functions
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
-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)
 {
         if (result != 0)
                 die("%s: %s", msg, strerror(errno));
         return result;
 }
 
 int chk_positive(int result, char *msg)
 {
         if (result <= 0)
                 die("%s: %s", msg, strerror(errno));
         return result;
 }
 
 int chk_non_negative(int result, char *msg)
 {
             if (result < 0)
                     die("%s: %s",msg, strerror(errno));
         return result;
 }
 
-struct repoinfo *add_repo(const char *url)
+struct cgit_repo *cgit_add_repo(const char *url)
 {
-        struct repoinfo *ret;
+        struct cgit_repo *ret;
 
         if (++cgit_repolist.count > cgit_repolist.length) {
                 if (cgit_repolist.length == 0)
                         cgit_repolist.length = 8;
                 else
                         cgit_repolist.length *= 2;
                 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
                                                cgit_repolist.length *
-                                               sizeof(struct repoinfo));
+                                               sizeof(struct cgit_repo));
         }
 
         ret = &cgit_repolist.repos[cgit_repolist.count-1];
         ret->url = trim_end(url, '/');
         ret->name = ret->url;
         ret->path = NULL;
         ret->desc = "[no description]";
         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;
         return ret;
 }
 
-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;
 
         for (i=0; i<cgit_repolist.count; i++) {
                 repo = &cgit_repolist.repos[i];
                 if (!strcmp(repo->url, url))
                         return repo;
         }
         return NULL;
 }
 
-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)
 {
         free(info->author);
         free(info->author_email);
         free(info->committer);
         free(info->committer_email);
         free(info->subject);
         free(info->msg);
         free(info->msg_encoding);
         free(info);
         return NULL;
 }
 
-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)
 {
         int len;
         char *s, *t;
 
         if (str == NULL)
                 return NULL;
         t = (char *)str;
         len = strlen(t);
         while(len > 0 && t[len - 1] == c)
                 len--;
 
         if (len == 0)
                 return NULL;
 
         c = t[len];
         t[len] = '\0';
         s = xstrdup(t);
         t[len] = c;
         return s;
 }
 
 char *strlpart(char *txt, int maxlen)
 {
         char *result;
 
         if (!txt)
                 return txt;
 
         if (strlen(txt) <= maxlen)
                 return txt;
         result = xmalloc(maxlen + 1);
         memcpy(result, txt, maxlen - 3);
         result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.';
         result[maxlen] = '\0';
         return result;
 }
 
 char *strrpart(char *txt, int maxlen)
 {
         char *result;
 
         if (!txt)
                 return txt;
 
         if (strlen(txt) <= maxlen)
                 return txt;
         result = xmalloc(maxlen + 1);
         memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3);
         result[0] = result[1] = result[2] = '.';
         return result;
 }
 
 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
 {
         size_t size;
 
         if (list->count >= list->alloc) {
                 list->alloc += (list->alloc ? list->alloc : 4);
                 size = list->alloc * sizeof(struct refinfo *);
                 list->refs = xrealloc(list->refs, size);
         }
         list->refs[list->count++] = ref;
 }
 
 struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1)
 {
         struct refinfo *ref;
 
         ref = xmalloc(sizeof (struct refinfo));
         ref->refname = xstrdup(refname);
         ref->object = parse_object(sha1);
         switch (ref->object->type) {
         case OBJ_TAG:
                 ref->tag = cgit_parse_tag((struct tag *)ref->object);
                 break;
         case OBJ_COMMIT:
                 ref->commit = cgit_parse_commit((struct commit *)ref->object);
                 break;
         }
         return ref;
 }
 
 int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags,
                   void *cb_data)
 {
         struct reflist *list = (struct reflist *)cb_data;
         struct refinfo *info = cgit_mk_refinfo(refname, sha1);
 
         if (info)
                 cgit_add_ref(list, info);
         return 0;
 }
 
 void cgit_diff_tree_cb(struct diff_queue_struct *q,
                        struct diff_options *options, void *data)
 {
         int i;
 
         for (i = 0; i < q->nr; i++) {
                 if (q->queue[i]->status == 'U')
                         continue;
                 ((filepair_fn)data)(q->queue[i]);
         }
 }
 
 static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
 {
         enum object_type type;
 
         if (is_null_sha1(sha1)) {
                 file->ptr = (char *)"";
                 file->size = 0;
         } else {
                 file->ptr = read_sha1_file(sha1, &type, 
                                            (unsigned long *)&file->size);
         }
         return 1;
 }
 
 /*
  * Receive diff-buffers from xdiff and concatenate them as
  * needed across multiple callbacks.
  *
  * This is basically a copy of xdiff-interface.c/xdiff_outf(),
  * ripped from git and modified to use globals instead of
  * a special callback-struct.
  */
 char *diffbuf = NULL;
 int buflen = 0;
 
 int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
 {
         int i;
 
         for (i = 0; i < nbuf; i++) {
                 if (mb[i].ptr[mb[i].size-1] != '\n') {
                         /* Incomplete line */
                         diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
                         memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
                         buflen += mb[i].size;
                         continue;
                 }
 
                 /* we have a complete line */
                 if (!diffbuf) {
                         ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
                         continue;
                 }
                 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
                 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
                 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
                 free(diffbuf);
                 diffbuf = NULL;
                 buflen = 0;
         }
         if (diffbuf) {
                 ((linediff_fn)priv)(diffbuf, buflen);
                 free(diffbuf);
                 diffbuf = NULL;
                 buflen = 0;
         }
         return 0;
 }
 
 int cgit_diff_files(const unsigned char *old_sha1,
                      const unsigned char *new_sha1,
                      linediff_fn fn)
 {
         mmfile_t file1, file2;
         xpparam_t diff_params;
         xdemitconf_t emit_params;
         xdemitcb_t emit_cb;
 
         if (!load_mmfile(&file1, old_sha1) || !load_mmfile(&file2, new_sha1))
                 return 1;
 
         diff_params.flags = XDF_NEED_MINIMAL;
         emit_params.ctxlen = 3;
         emit_params.flags = XDL_EMIT_FUNCNAMES;
         emit_params.find_func = NULL;
         emit_cb.outf = filediff_cb;
         emit_cb.priv = fn;
         xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
         return 0;
 }
 
 void cgit_diff_tree(const unsigned char *old_sha1,
                     const unsigned char *new_sha1,
                     filepair_fn fn, const char *prefix)
 {
         struct diff_options opt;
         int ret;
         int prefixlen;
 
         diff_setup(&opt);
         opt.output_format = DIFF_FORMAT_CALLBACK;
         opt.detect_rename = 1;
-        opt.rename_limit = cgit_renamelimit;
+        opt.rename_limit = ctx.cfg.renamelimit;
         DIFF_OPT_SET(&opt, RECURSIVE);
         opt.format_callback = cgit_diff_tree_cb;
         opt.format_callback_data = fn;
         if (prefix) {
                 opt.nr_paths = 1;
                 opt.paths = &prefix;
                 prefixlen = strlen(prefix);
                 opt.pathlens = &prefixlen;
         }
         diff_setup_done(&opt);
 
         if (old_sha1 && !is_null_sha1(old_sha1))
                 ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
         else
                 ret = diff_root_tree_sha1(new_sha1, "", &opt);
         diffcore_std(&opt);
         diff_flush(&opt);
 }
 
 void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 {
         unsigned char *old_sha1 = NULL;
 
         if (commit->parents)
                 old_sha1 = commit->parents->item->object.sha1;
         cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
 }
+
+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
@@ -1,31 +1,43 @@
+/* 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)
 {
 
         unsigned char sha1[20];
         enum object_type type;
         unsigned char *buf;
         unsigned long size;
 
         if (get_sha1_hex(hex, sha1)){
                 cgit_print_error(fmt("Bad hex value: %s", hex));
                 return;
         }
 
         type = sha1_object_info(sha1, &size);
         if (type == OBJ_BAD) {
                 cgit_print_error(fmt("Bad object name: %s", hex));
                 return;
         }
 
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 cgit_print_error(fmt("Error reading object %s", hex));
                 return;
         }
 
         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
@@ -1,226 +1,228 @@
 /* ui-commit.c: generate commit view
  *
  * Copyright (C) 2006 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"
 
 static int files, slots;
 static int total_adds, total_rems, max_changes;
 static int lines_added, lines_removed;
 static char *curr_rev;
 
 static struct fileinfo {
         char status;
         unsigned char old_sha1[20];
         unsigned char new_sha1[20];
         unsigned short old_mode;
         unsigned short new_mode;
         char *old_path;
         char *new_path;
         unsigned int added;
         unsigned int removed;
 } *items;
 
 
 void print_fileinfo(struct fileinfo *info)
 {
         char *class;
 
         switch (info->status) {
         case DIFF_STATUS_ADDED:
                 class = "add";
                 break;
         case DIFF_STATUS_COPIED:
                 class = "cpy";
                 break;
         case DIFF_STATUS_DELETED:
                 class = "del";
                 break;
         case DIFF_STATUS_MODIFIED:
                 class = "upd";
                 break;
         case DIFF_STATUS_RENAMED:
                 class = "mov";
                 break;
         case DIFF_STATUS_TYPE_CHANGED:
                 class = "typ";
                 break;
         case DIFF_STATUS_UNKNOWN:
                 class = "unk";
                 break;
         case DIFF_STATUS_UNMERGED:
                 class = "stg";
                 break;
         default:
                 die("bug: unhandled diff status %c", info->status);
         }
 
         html("<tr>");
         htmlf("<td class='mode'>");
         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);
         }
 
         if (info->old_mode != info->new_mode &&
             !is_null_sha1(info->old_sha1) &&
             !is_null_sha1(info->new_sha1)) {
                 html("<span class='modechange'>[");
-                html_filemode(info->old_mode);
+                cgit_print_filemode(info->old_mode);
                 html("]</span>");
         }
         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);
         if (info->status == DIFF_STATUS_COPIED || info->status == DIFF_STATUS_RENAMED)
                 htmlf(" (%s from %s)",
                       info->status == DIFF_STATUS_COPIED ? "copied" : "renamed",
                       info->old_path);
         html("</td><td class='right'>");
         htmlf("%d", info->added + info->removed);
         html("</td><td class='graph'>");
         htmlf("<table summary='file diffstat' width='%d%%'><tr>", (max_changes > 100 ? 100 : max_changes));
         htmlf("<td class='add' style='width: %.1f%%;'/>",
               info->added * 100.0 / max_changes);
         htmlf("<td class='rem' style='width: %.1f%%;'/>",
               info->removed * 100.0 / max_changes);
         htmlf("<td class='none' style='width: %.1f%%;'/>",
               (max_changes - info->removed - info->added) * 100.0 / max_changes);
         html("</tr></table></td></tr>\n");
 }
 
 void cgit_count_diff_lines(char *line, int len)
 {
         if (line && (len > 0)) {
                 if (line[0] == '+')
                         lines_added++;
                 else if (line[0] == '-')
                         lines_removed++;
         }
 }
 
 void inspect_filepair(struct diff_filepair *pair)
 {
         files++;
         lines_added = 0;
         lines_removed = 0;
         cgit_diff_files(pair->one->sha1, pair->two->sha1, cgit_count_diff_lines);
         if (files >= slots) {
                 if (slots == 0)
                         slots = 4;
                 else
                         slots = slots * 2;
                 items = xrealloc(items, slots * sizeof(struct fileinfo));
         }
         items[files-1].status = pair->status;
         hashcpy(items[files-1].old_sha1, pair->one->sha1);
         hashcpy(items[files-1].new_sha1, pair->two->sha1);
         items[files-1].old_mode = pair->one->mode;
         items[files-1].new_mode = pair->two->mode;
         items[files-1].old_path = xstrdup(pair->one->path);
         items[files-1].new_path = xstrdup(pair->two->path);
         items[files-1].added = lines_added;
         items[files-1].removed = lines_removed;
         if (lines_added + lines_removed > max_changes)
                 max_changes = lines_added + lines_removed;
         total_adds += lines_added;
         total_rems += lines_removed;
 }
 
 
 void cgit_print_commit(char *hex)
 {
         struct commit *commit, *parent;
         struct commitinfo *info;
         struct commit_list *p;
         unsigned char sha1[20];
         char *tmp;
         int i;
 
         if (!hex)
-                hex = cgit_query_head;
+                hex = ctx.qry.head;
         curr_rev = hex;
 
         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("Bad commit reference: %s", hex));
                 return;
         }
         info = cgit_parse_commit(commit);
 
         html("<table summary='commit info' class='commit-info'>\n");
         html("<tr><th>author</th><td>");
         html_txt(info->author);
         html(" ");
         html_txt(info->author_email);
         html("</td><td class='right'>");
         cgit_print_date(info->author_date, FMT_LONGDATE);
         html("</td></tr>\n");
         html("<tr><th>committer</th><td>");
         html_txt(info->committer);
         html(" ");
         html_txt(info->committer_email);
         html("</td><td class='right'>");
         cgit_print_date(info->committer_date, FMT_LONGDATE);
         html("</td></tr>\n");
         html("<tr><th>tree</th><td colspan='2' class='sha1'>");
         tmp = xstrdup(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");
               for (p = commit->parents; p ; p = p->next) {
                 parent = lookup_commit_reference(p->item->object.sha1);
                 if (!parent) {
                         html("<tr><td colspan='3'>");
                         cgit_print_error("Error reading parent commit");
                         html("</td></tr>");
                         continue;
                 }
                 html("<tr><th>parent</th>"
                      "<td colspan='2' class='sha1'>");
                 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);
                 html(")</td></tr>");
         }
-        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>");
         }
         html("</table>\n");
         html("<div class='commit-subject'>");
         html_txt(info->subject);
         html("</div>");
         html("<div class='commit-msg'>");
         html_txt(info->msg);
         html("</div>");
         if (!(commit->parents && commit->parents->next && commit->parents->next->next)) {
                 html("<div class='diffstat-header'>Diffstat</div>");
                 html("<table summary='diffstat' class='diffstat'>");
                 max_changes = 0;
                 cgit_diff_commit(commit, inspect_filepair);
                 for(i = 0; i<files; i++)
                         print_fileinfo(&items[i]);
                 html("</table>");
                 html("<div class='diffstat-summary'>");
                 htmlf("%d files changed, %d insertions, %d deletions (",
                       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);
                 html(")</div>");
         }
         cgit_free_commitinfo(info);
 }
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
@@ -1,149 +1,150 @@
 /* ui-diff.c: show diff between two blobs
  *
  * Copyright (C) 2006 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"
 
 unsigned char old_rev_sha1[20];
 unsigned char new_rev_sha1[20];
 
 /*
  * print a single line returned from xdiff
  */
 static void print_line(char *line, int len)
 {
         char *class = "ctx";
         char c = line[len-1];
 
         if (line[0] == '+')
                 class = "add";
         else if (line[0] == '-')
                 class = "del";
         else if (line[0] == '@')
                 class = "hunk";
 
         htmlf("<div class='%s'>", class);
         line[len-1] = '\0';
         html_txt(line);
         html("</div>");
         line[len-1] = c;
 }
 
 static void header(unsigned char *sha1, char *path1, int mode1,
                    unsigned char *sha2, char *path2, int mode2)
 {
         char *abbrev1, *abbrev2;
         int subproject;
 
         subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2));
         html("<div class='head'>");
         html("diff --git a/");
         html_txt(path1);
         html(" b/");
         html_txt(path2);
 
         if (is_null_sha1(sha1))
                 path1 = "dev/null";
         if (is_null_sha1(sha2))
                 path2 = "dev/null";
 
         if (mode1 == 0)
                 htmlf("<br/>new file mode %.6o", mode2);
 
         if (mode2 == 0)
                 htmlf("<br/>deleted file mode %.6o", mode1);
 
         if (!subproject) {
                 abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
                 abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
                 htmlf("<br/>index %s..%s", abbrev1, abbrev2);
                 free(abbrev1);
                 free(abbrev2);
                 if (mode1 != 0 && mode2 != 0) {
                         htmlf(" %.6o", mode1);
                         if (mode2 != mode1)
                                 htmlf("..%.6o", mode2);
                 }
                 html("<br/>--- a/");
                 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);
                 else
                         html_txt(path1);
                 html("<br/>+++ b/");
                 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);
                 else
                         html_txt(path2);
         }
         html("</div>");
 }
 
 static void filepair_cb(struct diff_filepair *pair)
 {
         header(pair->one->sha1, pair->one->path, pair->one->mode,
                pair->two->sha1, pair->two->path, pair->two->mode);
         if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
                 if (S_ISGITLINK(pair->one->mode))
                         print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
                 if (S_ISGITLINK(pair->two->mode))
                         print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
                 return;
         }
         if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
                 cgit_print_error("Error running diff");
 }
 
 void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix)
 {
         enum object_type type;
         unsigned long size;
         struct commit *commit, *commit2;
 
         if (!new_rev)
-                new_rev = cgit_query_head;
+                new_rev = ctx.qry.head;
         get_sha1(new_rev, new_rev_sha1);
         type = sha1_object_info(new_rev_sha1, &size);
         if (type == OBJ_BAD) {
                 cgit_print_error(fmt("Bad object name: %s", new_rev));
                 return;
         }
         if (type != OBJ_COMMIT) {
                 cgit_print_error(fmt("Unhandled object type: %s",
                                      typename(type)));
                 return;
         }
 
         commit = lookup_commit_reference(new_rev_sha1);
         if (!commit || parse_commit(commit))
                 cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(new_rev_sha1)));
 
         if (old_rev)
                 get_sha1(old_rev, old_rev_sha1);
         else if (commit->parents && commit->parents->item)
                 hashcpy(old_rev_sha1, commit->parents->item->object.sha1);
         else
                 hashclr(old_rev_sha1);
 
         if (!is_null_sha1(old_rev_sha1)) {
                 type = sha1_object_info(old_rev_sha1, &size);
                 if (type == OBJ_BAD) {
                         cgit_print_error(fmt("Bad object name: %s", sha1_to_hex(old_rev_sha1)));
                         return;
                 }
                 commit2 = lookup_commit_reference(old_rev_sha1);
                 if (!commit2 || parse_commit(commit2))
                         cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(old_rev_sha1)));
         }
         html("<table summary='diff' class='diff'>");
         html("<tr><td>");
         cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix);
         html("</td></tr>");
         html("</table>");
 }
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
@@ -1,140 +1,142 @@
 /* ui-log.c: functions for log output
  *
  * Copyright (C) 2006 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"
 
 int files, add_lines, rem_lines;
 
 void count_lines(char *line, int size)
 {
         if (size <= 0)
                 return;
 
         if (line[0] == '+')
                 add_lines++;
 
         else if (line[0] == '-')
                 rem_lines++;
 }
 
 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);
 }
 
 void print_commit(struct commit *commit)
 {
         struct commitinfo *info;
 
         info = cgit_parse_commit(commit);
         html("<tr><td>");
         cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
         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;
                 add_lines = 0;
                 rem_lines = 0;
                 cgit_diff_commit(commit, inspect_files);
                 html("</td><td class='right'>");
                 htmlf("%d", files);
-                if (cgit_repo->enable_log_linecount) {
+                if (ctx.repo->enable_log_linecount) {
                         html("</td><td class='right'>");
                         htmlf("-%d/+%d", rem_lines, add_lines);
                 }
         }
         html("</td><td>");
         html_txt(info->author);
         html("</td></tr>\n");
         cgit_free_commitinfo(info);
 }
 
 
 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern, char *path, int pager)
 {
         struct rev_info rev;
         struct commit *commit;
         const char *argv[] = {NULL, tip, NULL, NULL, NULL};
         int argc = 2;
         int i;
 
         if (!tip)
-                argv[1] = cgit_query_head;
+                argv[1] = ctx.qry.head;
 
         if (grep && pattern && (!strcmp(grep, "grep") ||
                                 !strcmp(grep, "author") ||
                                 !strcmp(grep, "committer")))
                 argv[argc++] = fmt("--%s=%s", grep, pattern);
 
         if (path) {
                 argv[argc++] = "--";
                 argv[argc++] = path;
         }
         init_revisions(&rev, NULL);
         rev.abbrev = DEFAULT_ABBREV;
         rev.commit_format = CMIT_FMT_DEFAULT;
         rev.verbose_header = 1;
         rev.show_root_diff = 0;
         setup_revisions(argc, argv, &rev, NULL);
         if (rev.grep_filter) {
                 rev.grep_filter->regflags |= REG_ICASE;
                 compile_grep_patterns(rev.grep_filter);
         }
         prepare_revision_walk(&rev);
 
         html("<table summary='log' class='list nowrap'>");
         html("<tr class='nohover'><th class='left'>Age</th>"
              "<th class='left'>Message</th>");
 
-        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>");
         }
         html("<th class='left'>Author</th></tr>\n");
 
         if (ofs<0)
                 ofs = 0;
 
         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
 
         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
                 print_commit(commit);
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
         html("</table>\n");
 
         if (pager) {
                 html("<div class='pager'>");
                 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;");
                 }
                 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);
                 }
                 html("</div>");
         }
 }
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
@@ -1,114 +1,118 @@
 /* ui-patch.c: generate patch view
  *
  * Copyright (C) 2007 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"
 
 static void print_line(char *line, int len)
 {
         char c = line[len-1];
 
         line[len-1] = '\0';
         htmlf("%s\n", line);
         line[len-1] = c;
 }
 
 static void header(unsigned char *sha1, char *path1, int mode1,
                    unsigned char *sha2, char *path2, int mode2)
 {
         char *abbrev1, *abbrev2;
         int subproject;
 
         subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2));
         htmlf("diff --git a/%s b/%s\n", path1, path2);
 
         if (is_null_sha1(sha1))
                 path1 = "dev/null";
         if (is_null_sha1(sha2))
                 path2 = "dev/null";
 
         if (mode1 == 0)
                 htmlf("new file mode %.6o\n", mode2);
 
         if (mode2 == 0)
                 htmlf("deleted file mode %.6o\n", mode1);
 
         if (!subproject) {
                 abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
                 abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
                 htmlf("index %s..%s", abbrev1, abbrev2);
                 free(abbrev1);
                 free(abbrev2);
                 if (mode1 != 0 && mode2 != 0) {
                         htmlf(" %.6o", mode1);
                         if (mode2 != mode1)
                                 htmlf("..%.6o", mode2);
                 }
                 htmlf("\n--- a/%s\n", path1);
                 htmlf("+++ b/%s\n", path2);
         }
 }
 
 static void filepair_cb(struct diff_filepair *pair)
 {
         header(pair->one->sha1, pair->one->path, pair->one->mode,
                pair->two->sha1, pair->two->path, pair->two->mode);
         if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
                 if (S_ISGITLINK(pair->one->mode))
                         print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
                 if (S_ISGITLINK(pair->two->mode))
                         print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
                 return;
         }
         if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
                 html("Error running diff");
 }
 
-void cgit_print_patch(char *hex, struct cacheitem *item)
+void cgit_print_patch(char *hex)
 {
         struct commit *commit;
         struct commitinfo *info;
         unsigned char sha1[20], old_sha1[20];
         char *patchname;
 
         if (!hex)
-                hex = cgit_query_head;
+                hex = ctx.qry.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("Bad commit reference: %s", hex));
                 return;
         }
         info = cgit_parse_commit(commit);
 
         if (commit->parents && commit->parents->item)
                 hashcpy(old_sha1, commit->parents->item->object.sha1);
         else
                 hashclr(old_sha1);
 
         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));
         htmlf("From: %s%s\n", info->author, info->author_email);
         html("Date: ");
         cgit_print_date(info->author_date, "%a, %d  %b  %Y  %H:%M:%S  %z%n");
         htmlf("Subject: %s\n\n", info->subject);
         if (info->msg && *info->msg) {
                 htmlf("%s", info->msg);
                 if (info->msg[strlen(info->msg) - 1] != '\n')
                         html("\n");
         }
         html("---\n");
         cgit_diff_tree(old_sha1, sha1, filepair_cb, NULL);
         html("--\n");
         htmlf("cgit %s\n", CGIT_VERSION);
         cgit_free_commitinfo(info);
 }
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
@@ -1,30 +1,201 @@
 /* ui-refs.c: browse symbolic refs
  *
  * Copyright (C) 2006 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"
 
+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");
+}
 
 void cgit_print_refs()
 {
 
         html("<table class='list nowrap'>");
 
-        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);
         else {
                 cgit_print_branches(0);
                 html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
                 cgit_print_tags(0);
         }
 
         html("</table>");
 }
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
@@ -1,110 +1,114 @@
 /* ui-repolist.c: functions for generating the repolist page
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
-#include "cgit.h"
 #include <time.h>
 
+#include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
 
 time_t read_agefile(char *path)
 {
         FILE *f;
         static char buf[64], buf2[64];
 
         if (!(f = fopen(path, "r")))
                 return -1;
         fgets(buf, sizeof(buf), f);
         fclose(f);
         if (parse_date(buf, buf2, sizeof(buf2)))
                 return strtoul(buf2, NULL, 10);
         else
                 return 0;
 }
 
-static void print_modtime(struct repoinfo *repo)
+static void print_modtime(struct cgit_repo *repo)
 {
         char *path;
         struct stat s;
 
-        path = fmt("%s/%s", repo->path, cgit_agefile);
+        path = fmt("%s/%s", repo->path, ctx.cfg.agefile);
         if (stat(path, &s) == 0) {
                 cgit_print_age(read_agefile(path), -1, NULL);
                 return;
         }
 
         path = fmt("%s/refs/heads/%s", repo->path, repo->defbranch);
         if (stat(path, &s) != 0)
                 return;
         cgit_print_age(s.st_mtime, -1, NULL);
 }
 
-void cgit_print_repolist(struct cacheitem *item)
+void cgit_print_repolist()
 {
         int i, columns = 4;
         char *last_group = NULL;
 
-        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>");
         }
         html("<tr class='nohover'>"
              "<th class='left'>Name</th>"
              "<th class='left'>Description</th>"
              "<th class='left'>Owner</th>"
              "<th class='left'>Idle</th>");
-        if (cgit_enable_index_links)
+        if (ctx.cfg.enable_index_links)
                 html("<th>Links</th>");
         html("</tr>\n");
 
         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");
                         html("summary</a>");
                         cgit_log_link("log", NULL, "button", NULL, NULL, NULL,
                                       0, NULL, NULL);
                         cgit_tree_link("tree", NULL, "button", NULL, NULL, NULL);
                         html("</td>");
                 }
                 html("</tr>\n");
         }
         html("</table>");
         cgit_print_docend();
 }
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
@@ -1,570 +1,591 @@
 /* ui-shared.c: common web output functions
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
+#include "html.h"
 
 const char cgit_doctype[] =
 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
 
 static char *http_date(time_t t)
 {
         static char day[][4] =
                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
         static char month[][4] =
                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
         struct tm *tm = gmtime(&t);
         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
                    tm->tm_hour, tm->tm_min, tm->tm_sec);
 }
 
-static long ttl_seconds(long ttl)
-{
-        if (ttl<0)
-                return 60 * 60 * 24 * 365;
-        else
-                return ttl * 60;
-}
-
 void cgit_print_error(char *msg)
 {
         html("<div class='error'>");
         html_txt(msg);
         html("</div>\n");
 }
 
 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;
 }
 
 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 {
                 return fmt("?r=%s", reponame);
         }
 }
 
 char *cgit_fileurl(const char *reponame, const char *pagename,
                    const char *filename, const char *query)
 {
         char *tmp;
         char *delim;
 
-        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:""));
                 delim = "?";
         } else {
                 tmp = fmt("?url=%s/%s/%s", reponame, pagename,
                           (filename ? filename : ""));
                 delim = "&";
         }
         if (query)
                 tmp = fmt("%s%s%s", tmp, delim, query);
         return tmp;
 }
 
 char *cgit_pageurl(const char *reponame, const char *pagename,
                    const char *query)
 {
         return cgit_fileurl(reponame,pagename,0,query);
 }
 
 const char *cgit_repobasename(const char *reponame)
 {
         /* I assume we don't need to store more than one repo basename */
         static char rvbuf[1024];
         int p;
         const char *rv;
         strncpy(rvbuf,reponame,sizeof(rvbuf));
         if(rvbuf[sizeof(rvbuf)-1])
                 die("cgit_repobasename: truncated repository name '%s'", reponame);
         p = strlen(rvbuf)-1;
         /* strip trailing slashes */
         while(p && rvbuf[p]=='/') rvbuf[p--]=0;
         /* strip trailing .git */
         if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
                 p -= 3; rvbuf[p--] = 0;
         }
         /* strip more trailing slashes if any */
         while( p && rvbuf[p]=='/') rvbuf[p--]=0;
         /* find last slash in the remaining string */
         rv = strrchr(rvbuf,'/');
         if(rv)
                 return ++rv;
         return rvbuf;
 }
 
 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);
 }
 
 static char *repolink(char *title, char *class, char *page, char *head,
                       char *path)
 {
         char *delim = "?";
 
         html("<a");
         if (title) {
                 html(" title='");
                 html_attr(title);
                 html("'");
         }
         if (class) {
                 html(" class='");
                 html_attr(class);
                 html("'");
         }
         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("/");
                 if (page) {
                         html(page);
                         html("/");
                         if (path)
                                 html_attr(path);
                 }
         } 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("/");
                 if (page) {
                         html(page);
                         html("/");
                         if (path)
                                 html_attr(path);
                 }
                 delim = "&amp;";
         }
-        if (head && strcmp(head, cgit_repo->defbranch)) {
+        if (head && strcmp(head, ctx.repo->defbranch)) {
                 html(delim);
                 html("h=");
                 html_attr(head);
                 delim = "&amp;";
         }
         return fmt("%s", delim);
 }
 
 static void reporevlink(char *page, char *name, char *title, char *class,
                         char *head, char *rev, char *path)
 {
         char *delim;
 
         delim = repolink(title, class, page, head, path);
-        if (rev && strcmp(rev, cgit_query_head)) {
+        if (rev && strcmp(rev, ctx.qry.head)) {
                 html(delim);
                 html("id=");
                 html_attr(rev);
         }
         html("'>");
         html_txt(name);
         html("</a>");
 }
 
 void cgit_tree_link(char *name, char *title, char *class, char *head,
                     char *rev, char *path)
 {
         reporevlink("tree", name, title, class, head, rev, path);
 }
 
 void cgit_log_link(char *name, char *title, char *class, char *head,
                    char *rev, char *path, int ofs, char *grep, char *pattern)
 {
         char *delim;
 
         delim = repolink(title, class, "log", head, path);
-        if (rev && strcmp(rev, cgit_query_head)) {
+        if (rev && strcmp(rev, ctx.qry.head)) {
                 html(delim);
                 html("id=");
                 html_attr(rev);
                 delim = "&";
         }
         if (grep && pattern) {
                 html(delim);
                 html("qt=");
                 html_attr(grep);
                 delim = "&";
                 html(delim);
                 html("q=");
                 html_attr(pattern);
         }
         if (ofs > 0) {
                 html(delim);
                 html("ofs=");
                 htmlf("%d", ofs);
         }
         html("'>");
         html_txt(name);
         html("</a>");
 }
 
 void cgit_commit_link(char *name, char *title, char *class, char *head,
                       char *rev)
 {
-        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] = '.';
         }
         reporevlink("commit", name, title, class, head, rev, NULL);
 }
 
 void cgit_refs_link(char *name, char *title, char *class, char *head,
                     char *rev, char *path)
 {
         reporevlink("refs", name, title, class, head, rev, path);
 }
 
 void cgit_snapshot_link(char *name, char *title, char *class, char *head,
                         char *rev, char *archivename)
 {
         reporevlink("snapshot", name, title, class, head, rev, archivename);
 }
 
 void cgit_diff_link(char *name, char *title, char *class, char *head,
                     char *new_rev, char *old_rev, char *path)
 {
         char *delim;
 
         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);
                 html("id=");
                 html_attr(new_rev);
                 delim = "&amp;";
         }
         if (old_rev) {
                 html(delim);
                 html("id2=");
                 html_attr(old_rev);
         }
         html("'>");
         html_txt(name);
         html("</a>");
 }
 
 void cgit_patch_link(char *name, char *title, char *class, char *head,
                      char *rev)
 {
         reporevlink("patch", name, title, class, head, rev, NULL);
 }
 
 void cgit_object_link(struct object *obj)
 {
         char *page, *arg, *url;
 
         if (obj->type == OBJ_COMMIT) {
                 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;
         } else if (obj->type == OBJ_TREE) {
                 page = "tree";
                 arg = "id";
         } else if (obj->type == OBJ_TAG) {
                 page = "tag";
                 arg = "id";
         } else {
                 page = "blob";
                 arg = "id";
         }
 
-        url = cgit_pageurl(cgit_query_repo, page,
+        url = cgit_pageurl(ctx.qry.repo, page,
                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
         html_link_open(url, NULL, NULL);
         htmlf("%s %s", typename(obj->type),
               sha1_to_hex(obj->sha1));
         html_link_close();
 }
 
 void cgit_print_date(time_t secs, char *format)
 {
         char buf[64];
         struct tm *time;
 
         if (!secs)
                 return;
         time = gmtime(&secs);
         strftime(buf, sizeof(buf)-1, format, time);
         html_txt(buf);
 }
 
 void cgit_print_age(time_t t, time_t max_relative, char *format)
 {
         time_t now, secs;
 
         if (!t)
                 return;
         time(&now);
         secs = now - t;
 
         if (secs > max_relative && max_relative >= 0) {
                 cgit_print_date(t, format);
                 return;
         }
 
         if (secs < TM_HOUR * 2) {
                 htmlf("<span class='age-mins'>%.0f min.</span>",
                       secs * 1.0 / TM_MIN);
                 return;
         }
         if (secs < TM_DAY * 2) {
                 htmlf("<span class='age-hours'>%.0f hours</span>",
                       secs * 1.0 / TM_HOUR);
                 return;
         }
         if (secs < TM_WEEK * 2) {
                 htmlf("<span class='age-days'>%.0f days</span>",
                       secs * 1.0 / TM_DAY);
                 return;
         }
         if (secs < TM_MONTH * 2) {
                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
                       secs * 1.0 / TM_WEEK);
                 return;
         }
         if (secs < TM_YEAR * 2) {
                 htmlf("<span class='age-months'>%.0f months</span>",
                       secs * 1.0 / TM_MONTH);
                 return;
         }
         htmlf("<span class='age-years'>%.0f years</span>",
               secs * 1.0 / TM_YEAR);
 }
 
-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);
         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
         html("<head>\n");
         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");
         html("</head>\n");
         html("<body>\n");
 }
 
 void cgit_print_docend()
 {
         html("</td>\n</tr>\n</table>\n</body>\n</html>\n");
 }
 
 int print_branch_option(const char *refname, const unsigned char *sha1,
                         int flags, void *cb_data)
 {
         char *name = (char *)refname;
-        html_option(name, name, cgit_query_head);
+        html_option(name, name, ctx.qry.head);
         return 0;
 }
 
 int print_archive_ref(const char *refname, const unsigned char *sha1,
                        int flags, void *cb_data)
 {
         struct tag *tag;
         struct taginfo *info;
         struct object *obj;
         char buf[256], *url;
         unsigned char fileid[20];
         int *header = (int *)cb_data;
 
         if (prefixcmp(refname, "refs/archives"))
                 return 0;
         strncpy(buf, refname+14, sizeof(buf));
         obj = parse_object(sha1);
         if (!obj)
                 return 1;
         if (obj->type == OBJ_TAG) {
                 tag = lookup_tag(sha1);
                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
                         return 0;
                 hashcpy(fileid, tag->tagged->sha1);
         } else if (obj->type != OBJ_BLOB) {
                 return 0;
         } else {
                 hashcpy(fileid, sha1);
         }
         if (!*header) {
                 html("<h1>download</h1>\n");
                 *header = 1;
         }
-        url = cgit_pageurl(cgit_query_repo, "blob",
+        url = cgit_pageurl(ctx.qry.repo, "blob",
                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
                                buf));
         html_link_open(url, NULL, "menu");
         html_txt(strlpart(buf, 20));
         html_link_close();
         return 0;
 }
 
 void add_hidden_formfields(int incl_head, int incl_search, char *page)
 {
         char *url;
 
-        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);
         }
 
-        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);
         }
 }
 
-void cgit_print_pageheader(char *title, int show_search)
+void cgit_print_pageheader(struct cgit_context *ctx)
 {
         static const char *default_info = "This is cgit, a fast webinterface for git repositories";
         int header = 0;
         char *url;
 
         html("<table id='layout' summary=''>\n");
         html("<tr><td id='sidebar'>\n");
         html("<table class='sidebar' cellspacing='0' summary=''>\n");
         html("<tr><td class='sidebar'>\n<a href='");
         html_attr(cgit_rooturl());
         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);
 
                 for_each_ref(print_archive_ref, &header);
 
-                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='");
                         html_attr(url);
                         html("' title='");
                         html_attr(url);
                         html("'>\n");
                         html_txt(strrpart(url, 20));
                         html("</a>\n");
                 }
 
                 html("<h1>branch</h1>\n");
                 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");
         //      html("</td><td>");
                 html("<noscript><input type='submit' id='switch-btn' value='switch'/></noscript>\n");
         //      html("</td></tr></table>");
                 html("</form>\n");
 
                 html("<h1>search</h1>\n");
                 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");
                 add_hidden_formfields(1, 0, "log");
                 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");
                 html("</form>\n");
         } else {
-                if (!cgit_index_info || html_include(cgit_index_info))
+                if (!ctx->cfg.index_info || html_include(ctx->cfg.index_info))
                         html(default_info);
         }
 
         html("</td></tr></table></td>\n");
 
         html("<td id='content'>\n");
 }
 
-
-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
@@ -1,157 +1,114 @@
 /* ui-snapshot.c: generate snapshot of a commit
  *
  * Copyright (C) 2006 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"
 
 static int write_compressed_tar_archive(struct archiver_args *args,const char *filter)
 {
         int rw[2];
         pid_t gzpid;
         int stdout2;
         int status;
         int rv;
 
         stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
         chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
         gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
         if(gzpid==0) {
                 /* child */
                 chk_zero(close(rw[1]), "Closing write end of pipe in child");
                 chk_zero(close(STDIN_FILENO), "Closing STDIN");
                 chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
                 execlp(filter,filter,NULL);
                 _exit(-1);
         }
         /* parent */
         chk_zero(close(rw[0]), "Closing read end of pipe");
         chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
 
         rv = write_tar_archive(args);
 
         chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
         chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
         chk_zero(close(stdout2), "Closing uncompressed STDOUT");
         chk_zero(close(rw[1]), "Closing write end of pipe in parent");
         chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
         if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
                 cgit_print_error("Failed to compress archive");
 
         return rv;
 }
 
 static int write_tar_gzip_archive(struct archiver_args *args)
 {
         return write_compressed_tar_archive(args,"gzip");
 }
 
 static int write_tar_bzip2_archive(struct archiver_args *args)
 {
         return write_compressed_tar_archive(args,"bzip2");
 }
 
-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 },
         { ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 },
         { ".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;
         struct commit *commit;
         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
@@ -1,200 +1,31 @@
 /* ui-summary.c: functions for generating repo summary page
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #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"
 
 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
@@ -1,74 +1,75 @@
 /* ui-tag.c: display a tag
  *
  * Copyright (C) 2007 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"
 
 static void print_tag_content(char *buf)
 {
         char *p;
 
         if (!buf)
                 return;
 
         html("<div class='commit-subject'>");
         p = strchr(buf, '\n');
         if (p)
                 *p = '\0';
         html_txt(buf);
         html("</div>");
         if (p) {
                 html("<div class='commit-msg'>");
                 html_txt(++p);
                 html("</div>");
         }
 }
 
 void cgit_print_tag(char *revname)
 {
         unsigned char sha1[20];
         struct object *obj;
         struct tag *tag;
         struct taginfo *info;
 
         if (get_sha1(revname, sha1)) {
                 cgit_print_error(fmt("Bad tag reference: %s", revname));
                 return;
         }
         obj = parse_object(sha1);
         if (!obj) {
                 cgit_print_error(fmt("Bad object id: %s", sha1_to_hex(sha1)));
                 return;
         }
         if (obj->type == OBJ_TAG) {
                 tag = lookup_tag(sha1);
                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag))) {
                         cgit_print_error(fmt("Bad tag object: %s", revname));
                         return;
                 }
                 html("<table class='commit-info'>\n");
                 htmlf("<tr><td>Tag name</td><td>%s (%s)</td></tr>\n",
                       revname, sha1_to_hex(sha1));
                 if (info->tagger_date > 0) {
                         html("<tr><td>Tag date</td><td>");
                         cgit_print_date(info->tagger_date, FMT_LONGDATE);
                         html("</td></tr>\n");
                 }
                 if (info->tagger) {
                         html("<tr><td>Tagged by</td><td>");
                         html_txt(info->tagger);
                         html("</td></tr>\n");
                 }
                 html("<tr><td>Tagged object</td><td>");
                 cgit_object_link(tag->tagged);
                 html("</td></tr>\n");
                 html("</table>\n");
                 print_tag_content(info->msg);
         }
         return;
 }
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
@@ -1,216 +1,218 @@
 /* ui-tree.c: functions for tree output
  *
  * Copyright (C) 2006 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"
 
 char *curr_rev;
 char *match_path;
 int header = 0;
 
 static void print_object(const unsigned char *sha1, char *path)
 {
         enum object_type type;
         char *buf;
         unsigned long size, lineno, start, idx;
         const char *linefmt = "<tr><td class='no'><a id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a></td><td class='txt'>";
 
         type = sha1_object_info(sha1, &size);
         if (type == OBJ_BAD) {
                 cgit_print_error(fmt("Bad object name: %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 cgit_print_error(fmt("Error reading object %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         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));
 
         html("<table summary='blob content' class='blob'>\n");
         idx = 0;
         start = 0;
         lineno = 0;
         while(idx < size) {
                 if (buf[idx] == '\n') {
                         buf[idx] = '\0';
                         htmlf(linefmt, ++lineno);
                         html_txt(buf + start);
                         html("</td></tr>\n");
                         start = idx + 1;
                 }
                 idx++;
         }
         htmlf(linefmt, ++lineno);
         html_txt(buf + start);
         html("</td></tr>\n");
         html("</table>\n");
 }
 
 
 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
                    const char *pathname, unsigned int mode, int stage)
 {
         char *name;
         char *fullpath;
         enum object_type type;
         unsigned long size = 0;
 
         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);
 
         type = sha1_object_info(sha1, &size);
         if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
                       name,
                       sha1_to_hex(sha1));
                 return 0;
         }
 
         html("<tr><td class='ls-mode'>");
-        html_filemode(mode);
+        cgit_print_filemode(mode);
         html("</td><td>");
         if (S_ISGITLINK(mode)) {
                 htmlf("<a class='ls-mod' href='");
-                html_attr(fmt(cgit_repo->module_link,
+                html_attr(fmt(ctx.repo->module_link,
                               name,
                               sha1_to_hex(sha1)));
                 html("'>");
                 html_txt(name);
                 html("</a>");
         } 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);
         }
         htmlf("</td><td class='ls-size'>%li</td>", size);
 
         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);
         html("</td></tr>\n");
         free(name);
         return 0;
 }
 
 static void ls_head()
 {
         html("<table summary='tree listing' class='list'>\n");
         html("<tr class='nohover'>");
         html("<th class='left'>Mode</th>");
         html("<th class='left'>Name</th>");
         html("<th class='right'>Size</th>");
         html("<th/>");
         html("</tr>\n");
         header = 1;
 }
 
 static void ls_tail()
 {
         if (!header)
                 return;
         html("</table>\n");
         header = 0;
 }
 
 static void ls_tree(const unsigned char *sha1, char *path)
 {
         struct tree *tree;
 
         tree = parse_tree_indirect(sha1);
         if (!tree) {
                 cgit_print_error(fmt("Not a tree object: %s",
                                      sha1_to_hex(sha1)));
                 return;
         }
 
         ls_head();
         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
         ls_tail();
 }
 
 
 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
                      const char *pathname, unsigned mode, int stage)
 {
         static int state;
         static char buffer[PATH_MAX];
         char *url;
 
         if (state == 0) {
                 memcpy(buffer, base, 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);
 
                 if (strcmp(match_path, buffer))
                         return READ_TREE_RECURSIVE;
 
                 if (S_ISDIR(mode)) {
                         state = 1;
                         ls_head();
                         return READ_TREE_RECURSIVE;
                 } else {
                         print_object(sha1, buffer);
                         return 0;
                 }
         }
         ls_item(sha1, base, baselen, pathname, mode, stage);
         return 0;
 }
 
 
 /*
  * Show a tree or a blob
  *   rev:  the commit pointing at the root tree object
  *   path: path to tree or blob
  */
 void cgit_print_tree(const char *rev, char *path)
 {
         unsigned char sha1[20];
         struct commit *commit;
         const char *paths[] = {path, NULL};
 
         if (!rev)
-                rev = cgit_query_head;
+                rev = ctx.qry.head;
 
         curr_rev = xstrdup(rev);
         if (get_sha1(rev, sha1)) {
                 cgit_print_error(fmt("Invalid revision name: %s", rev));
                 return;
         }
         commit = lookup_commit_reference(sha1);
         if (!commit || parse_commit(commit)) {
                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
                 return;
         }
 
         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>");
 
         if (path == NULL) {
                 ls_tree(commit->tree->object.sha1, NULL);
                 return;
         }
 
         match_path = path;
         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
         ls_tail();
 }
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 */