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-rw-r--r--www/git.causal.agency/cgit/ui-shared.c1241
1 files changed, 0 insertions, 1241 deletions
diff --git a/www/git.causal.agency/cgit/ui-shared.c b/www/git.causal.agency/cgit/ui-shared.c
deleted file mode 100644
index dfaf5952..00000000
--- a/www/git.causal.agency/cgit/ui-shared.c
+++ /dev/null
@@ -1,1241 +0,0 @@
-/* ui-shared.c: common web output functions
- *
- * Copyright (C) 2006-2017 cgit Development Team <cgit@lists.zx2c4.com>
- *
- * Licensed under GNU General Public License v2
- *   (see COPYING for full license text)
- */
-
-#include "cgit.h"
-#include "ui-shared.h"
-#include "cmd.h"
-#include "html.h"
-#include "version.h"
-
-static const char cgit_doctype[] =
-"<!DOCTYPE html>\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", "Nov", "Dec"};
-	struct tm tm;
-	gmtime_r(&t, &tm);
-	return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm.tm_wday],
-		   tm.tm_mday, month[tm.tm_mon], 1900 + tm.tm_year,
-		   tm.tm_hour, tm.tm_min, tm.tm_sec);
-}
-
-void cgit_print_error(const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-	cgit_vprint_error(fmt, ap);
-	va_end(ap);
-}
-
-void cgit_vprint_error(const char *fmt, va_list ap)
-{
-	va_list cp;
-	html("<div class='error'>");
-	va_copy(cp, ap);
-	html_vtxtf(fmt, cp);
-	va_end(cp);
-	html("</div>\n");
-}
-
-const char *cgit_httpscheme(void)
-{
-	if (ctx.env.https && !strcmp(ctx.env.https, "on"))
-		return "https://";
-	else
-		return "http://";
-}
-
-char *cgit_hosturl(void)
-{
-	if (ctx.env.http_host)
-		return xstrdup(ctx.env.http_host);
-	if (!ctx.env.server_name)
-		return NULL;
-	if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
-		return xstrdup(ctx.env.server_name);
-	return fmtalloc("%s:%s", ctx.env.server_name, ctx.env.server_port);
-}
-
-char *cgit_currenturl(void)
-{
-	const char *root = cgit_rooturl();
-
-	if (!ctx.qry.url)
-		return xstrdup(root);
-	if (root[0] && root[strlen(root) - 1] == '/')
-		return fmtalloc("%s%s", root, ctx.qry.url);
-	return fmtalloc("%s/%s", root, ctx.qry.url);
-}
-
-char *cgit_currentfullurl(void)
-{
-	const char *root = cgit_rooturl();
-	const char *orig_query = ctx.env.query_string ? ctx.env.query_string : "";
-	size_t len = strlen(orig_query);
-	char *query = xmalloc(len + 2), *start_url, *ret;
-
-	/* Remove all url=... parts from query string */
-	memcpy(query + 1, orig_query, len + 1);
-	query[0] = '?';
-	start_url = query;
-	while ((start_url = strstr(start_url, "url=")) != NULL) {
-		if (start_url[-1] == '?' || start_url[-1] == '&') {
-			const char *end_url = strchr(start_url, '&');
-			if (end_url)
-				memmove(start_url, end_url + 1, strlen(end_url));
-			else
-				start_url[0] = '\0';
-		} else
-			++start_url;
-	}
-	if (!query[1])
-		query[0] = '\0';
-
-	if (!ctx.qry.url)
-		ret = fmtalloc("%s%s", root, query);
-	else if (root[0] && root[strlen(root) - 1] == '/')
-		ret = fmtalloc("%s%s%s", root, ctx.qry.url, query);
-	else
-		ret = fmtalloc("%s/%s%s", root, ctx.qry.url, query);
-	free(query);
-	return ret;
-}
-
-const char *cgit_rooturl(void)
-{
-	if (ctx.cfg.virtual_root)
-		return ctx.cfg.virtual_root;
-	else
-		return ctx.cfg.script_name;
-}
-
-const char *cgit_loginurl(void)
-{
-	static const char *login_url;
-	if (!login_url)
-		login_url = fmtalloc("%s?p=login", cgit_rooturl());
-	return login_url;
-}
-
-char *cgit_repourl(const char *reponame)
-{
-	if (ctx.cfg.virtual_root)
-		return fmtalloc("%s%s/", ctx.cfg.virtual_root, reponame);
-	else
-		return fmtalloc("?r=%s", reponame);
-}
-
-char *cgit_fileurl(const char *reponame, const char *pagename,
-		   const char *filename, const char *query)
-{
-	struct strbuf sb = STRBUF_INIT;
-	char *delim;
-
-	if (ctx.cfg.virtual_root) {
-		strbuf_addf(&sb, "%s%s/%s/%s", ctx.cfg.virtual_root, reponame,
-			    pagename, (filename ? filename:""));
-		delim = "?";
-	} else {
-		strbuf_addf(&sb, "?url=%s/%s/%s", reponame, pagename,
-			    (filename ? filename : ""));
-		delim = "&amp;";
-	}
-	if (query)
-		strbuf_addf(&sb, "%s%s", delim, query);
-	return strbuf_detach(&sb, NULL);
-}
-
-char *cgit_pageurl(const char *reponame, const char *pagename,
-		   const char *query)
-{
-	return cgit_fileurl(reponame, pagename, NULL, 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;
-	size_t len;
-
-	len = strlcpy(rvbuf, reponame, sizeof(rvbuf));
-	if (len >= sizeof(rvbuf))
-		die("cgit_repobasename: truncated repository name '%s'", reponame);
-	p = len - 1;
-	/* strip trailing slashes */
-	while (p && rvbuf[p] == '/')
-		rvbuf[p--] = '\0';
-	/* strip trailing .git */
-	if (p >= 3 && starts_with(&rvbuf[p-3], ".git")) {
-		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;
-}
-
-const char *cgit_snapshot_prefix(const struct cgit_repo *repo)
-{
-	if (repo->snapshot_prefix)
-		return repo->snapshot_prefix;
-
-	return cgit_repobasename(repo->url);
-}
-
-static void site_url(const char *page, const char *search, const char *sort, int ofs, int always_root)
-{
-	char *delim = "?";
-
-	if (always_root || page)
-		html_attr(cgit_rooturl());
-	else {
-		char *currenturl = cgit_currenturl();
-		html_attr(currenturl);
-		free(currenturl);
-	}
-
-	if (page) {
-		htmlf("?p=%s", page);
-		delim = "&amp;";
-	}
-	if (search) {
-		html(delim);
-		html("q=");
-		html_attr(search);
-		delim = "&amp;";
-	}
-	if (sort) {
-		html(delim);
-		html("s=");
-		html_attr(sort);
-		delim = "&amp;";
-	}
-	if (ofs) {
-		html(delim);
-		htmlf("ofs=%d", ofs);
-	}
-}
-
-static void site_link(const char *page, const char *name, const char *title,
-		      const char *class, const char *search, const char *sort, int ofs, int always_root)
-{
-	html("<a");
-	if (title) {
-		html(" title='");
-		html_attr(title);
-		html("'");
-	}
-	if (class) {
-		html(" class='");
-		html_attr(class);
-		html("'");
-	}
-	html(" href='");
-	site_url(page, search, sort, ofs, always_root);
-	html("'>");
-	html_txt(name);
-	html("</a>");
-}
-
-void cgit_index_link(const char *name, const char *title, const char *class,
-		     const char *pattern, const char *sort, int ofs, int always_root)
-{
-	site_link(NULL, name, title, class, pattern, sort, ofs, always_root);
-}
-
-static char *repolink(const char *title, const char *class, const char *page,
-		      const char *head, const 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 (ctx.cfg.virtual_root) {
-		html_url_path(ctx.cfg.virtual_root);
-		html_url_path(ctx.repo->url);
-		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
-			html("/");
-		if (page) {
-			html_url_path(page);
-			html("/");
-			if (path)
-				html_url_path(path);
-		}
-	} else {
-		html_url_path(ctx.cfg.script_name);
-		html("?url=");
-		html_url_arg(ctx.repo->url);
-		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
-			html("/");
-		if (page) {
-			html_url_arg(page);
-			html("/");
-			if (path)
-				html_url_arg(path);
-		}
-		delim = "&amp;";
-	}
-	if (head && ctx.repo->defbranch && strcmp(head, ctx.repo->defbranch)) {
-		html(delim);
-		html("h=");
-		html_url_arg(head);
-		delim = "&amp;";
-	}
-	return fmt("%s", delim);
-}
-
-static void reporevlink(const char *page, const char *name, const char *title,
-			const char *class, const char *head, const char *rev,
-			const char *path)
-{
-	char *delim;
-
-	delim = repolink(title, class, page, head, path);
-	if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
-		html(delim);
-		html("id=");
-		html_url_arg(rev);
-	}
-	html("'>");
-	html_txt(name);
-	html("</a>");
-}
-
-void cgit_summary_link(const char *name, const char *title, const char *class,
-		       const char *head)
-{
-	reporevlink(NULL, name, title, class, head, NULL, NULL);
-}
-
-void cgit_tag_link(const char *name, const char *title, const char *class,
-		   const char *tag)
-{
-	reporevlink("tag", name, title, class, tag, NULL, NULL);
-}
-
-void cgit_tree_link(const char *name, const char *title, const char *class,
-		    const char *head, const char *rev, const char *path)
-{
-	reporevlink("tree", name, title, class, head, rev, path);
-}
-
-void cgit_plain_link(const char *name, const char *title, const char *class,
-		     const char *head, const char *rev, const char *path)
-{
-	reporevlink("plain", name, title, class, head, rev, path);
-}
-
-void cgit_blame_link(const char *name, const char *title, const char *class,
-		     const char *head, const char *rev, const char *path)
-{
-	reporevlink("blame", name, title, class, head, rev, path);
-}
-
-void cgit_log_link(const char *name, const char *title, const char *class,
-		   const char *head, const char *rev, const char *path,
-		   int ofs, const char *grep, const char *pattern, int showmsg,
-		   int follow)
-{
-	char *delim;
-
-	delim = repolink(title, class, "log", head, path);
-	if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
-		html(delim);
-		html("id=");
-		html_url_arg(rev);
-		delim = "&amp;";
-	}
-	if (grep && pattern) {
-		html(delim);
-		html("qt=");
-		html_url_arg(grep);
-		delim = "&amp;";
-		html(delim);
-		html("q=");
-		html_url_arg(pattern);
-	}
-	if (ofs > 0) {
-		html(delim);
-		html("ofs=");
-		htmlf("%d", ofs);
-		delim = "&amp;";
-	}
-	if (showmsg) {
-		html(delim);
-		html("showmsg=1");
-		delim = "&amp;";
-	}
-	if (follow) {
-		html(delim);
-		html("follow=1");
-	}
-	html("'>");
-	html_txt(name);
-	html("</a>");
-}
-
-void cgit_commit_link(const char *name, const char *title, const char *class,
-		      const char *head, const char *rev, const char *path)
-{
-	char *delim;
-
-	delim = repolink(title, class, "commit", head, path);
-	if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
-		html(delim);
-		html("id=");
-		html_url_arg(rev);
-		delim = "&amp;";
-	}
-	if (ctx.qry.difftype) {
-		html(delim);
-		htmlf("dt=%d", ctx.qry.difftype);
-		delim = "&amp;";
-	}
-	if (ctx.qry.context > 0 && ctx.qry.context != 3) {
-		html(delim);
-		html("context=");
-		htmlf("%d", ctx.qry.context);
-		delim = "&amp;";
-	}
-	if (ctx.qry.ignorews) {
-		html(delim);
-		html("ignorews=1");
-		delim = "&amp;";
-	}
-	if (ctx.qry.follow) {
-		html(delim);
-		html("follow=1");
-	}
-	html("'>");
-	if (name[0] != '\0') {
-		if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
-			html_ntxt(name, ctx.cfg.max_msg_len - 3);
-			html("...");
-		} else
-			html_txt(name);
-	} else
-		html_txt("(no commit message)");
-	html("</a>");
-}
-
-void cgit_refs_link(const char *name, const char *title, const char *class,
-		    const char *head, const char *rev, const char *path)
-{
-	reporevlink("refs", name, title, class, head, rev, path);
-}
-
-void cgit_snapshot_link(const char *name, const char *title, const char *class,
-			const char *head, const char *rev,
-			const char *archivename)
-{
-	reporevlink("snapshot", name, title, class, head, rev, archivename);
-}
-
-void cgit_diff_link(const char *name, const char *title, const char *class,
-		    const char *head, const char *new_rev, const char *old_rev,
-		    const char *path)
-{
-	char *delim;
-
-	delim = repolink(title, class, "diff", head, path);
-	if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
-		html(delim);
-		html("id=");
-		html_url_arg(new_rev);
-		delim = "&amp;";
-	}
-	if (old_rev) {
-		html(delim);
-		html("id2=");
-		html_url_arg(old_rev);
-		delim = "&amp;";
-	}
-	if (ctx.qry.difftype) {
-		html(delim);
-		htmlf("dt=%d", ctx.qry.difftype);
-		delim = "&amp;";
-	}
-	if (ctx.qry.context > 0 && ctx.qry.context != 3) {
-		html(delim);
-		html("context=");
-		htmlf("%d", ctx.qry.context);
-		delim = "&amp;";
-	}
-	if (ctx.qry.ignorews) {
-		html(delim);
-		html("ignorews=1");
-		delim = "&amp;";
-	}
-	if (ctx.qry.follow) {
-		html(delim);
-		html("follow=1");
-	}
-	html("'>");
-	html_txt(name);
-	html("</a>");
-}
-
-void cgit_patch_link(const char *name, const char *title, const char *class,
-		     const char *head, const char *rev, const char *path)
-{
-	reporevlink("patch", name, title, class, head, rev, path);
-}
-
-void cgit_stats_link(const char *name, const char *title, const char *class,
-		     const char *head, const char *path)
-{
-	reporevlink("stats", name, title, class, head, NULL, path);
-}
-
-static void cgit_self_link(char *name, const char *title, const char *class)
-{
-	if (!strcmp(ctx.qry.page, "repolist"))
-		cgit_index_link(name, title, class, ctx.qry.search, ctx.qry.sort,
-				ctx.qry.ofs, 1);
-	else if (!strcmp(ctx.qry.page, "summary"))
-		cgit_summary_link(name, title, class, ctx.qry.head);
-	else if (!strcmp(ctx.qry.page, "tag"))
-		cgit_tag_link(name, title, class, ctx.qry.has_oid ?
-			       ctx.qry.oid : ctx.qry.head);
-	else if (!strcmp(ctx.qry.page, "tree"))
-		cgit_tree_link(name, title, class, ctx.qry.head,
-			       ctx.qry.has_oid ? ctx.qry.oid : NULL,
-			       ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "plain"))
-		cgit_plain_link(name, title, class, ctx.qry.head,
-				ctx.qry.has_oid ? ctx.qry.oid : NULL,
-				ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "blame"))
-		cgit_blame_link(name, title, class, ctx.qry.head,
-				ctx.qry.has_oid ? ctx.qry.oid : NULL,
-				ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "log"))
-		cgit_log_link(name, title, class, ctx.qry.head,
-			      ctx.qry.has_oid ? ctx.qry.oid : NULL,
-			      ctx.qry.path, ctx.qry.ofs,
-			      ctx.qry.grep, ctx.qry.search,
-			      ctx.qry.showmsg, ctx.qry.follow);
-	else if (!strcmp(ctx.qry.page, "commit"))
-		cgit_commit_link(name, title, class, ctx.qry.head,
-				 ctx.qry.has_oid ? ctx.qry.oid : NULL,
-				 ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "patch"))
-		cgit_patch_link(name, title, class, ctx.qry.head,
-				ctx.qry.has_oid ? ctx.qry.oid : NULL,
-				ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "refs"))
-		cgit_refs_link(name, title, class, ctx.qry.head,
-			       ctx.qry.has_oid ? ctx.qry.oid : NULL,
-			       ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "snapshot"))
-		cgit_snapshot_link(name, title, class, ctx.qry.head,
-				   ctx.qry.has_oid ? ctx.qry.oid : NULL,
-				   ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "diff"))
-		cgit_diff_link(name, title, class, ctx.qry.head,
-			       ctx.qry.oid, ctx.qry.oid2,
-			       ctx.qry.path);
-	else if (!strcmp(ctx.qry.page, "stats"))
-		cgit_stats_link(name, title, class, ctx.qry.head,
-				ctx.qry.path);
-	else {
-		/* Don't known how to make link for this page */
-		repolink(title, class, ctx.qry.page, ctx.qry.head, ctx.qry.path);
-		html("><!-- cgit_self_link() doesn't know how to make link for page '");
-		html_txt(ctx.qry.page);
-		html("' -->");
-		html_txt(name);
-		html("</a>");
-	}
-}
-
-void cgit_object_link(struct object *obj)
-{
-	char *page, *shortrev, *fullrev, *name;
-
-	fullrev = oid_to_hex(&obj->oid);
-	shortrev = xstrdup(fullrev);
-	shortrev[10] = '\0';
-	if (obj->type == OBJ_COMMIT) {
-		cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
-				 ctx.qry.head, fullrev, NULL);
-		return;
-	} else if (obj->type == OBJ_TREE)
-		page = "tree";
-	else if (obj->type == OBJ_TAG)
-		page = "tag";
-	else
-		page = "blob";
-	name = fmt("%s %s...", type_name(obj->type), shortrev);
-	reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
-}
-
-static struct string_list_item *lookup_path(struct string_list *list,
-					    const char *path)
-{
-	struct string_list_item *item;
-
-	while (path && path[0]) {
-		if ((item = string_list_lookup(list, path)))
-			return item;
-		if (!(path = strchr(path, '/')))
-			break;
-		path++;
-	}
-	return NULL;
-}
-
-void cgit_submodule_link(const char *class, char *path, const char *rev)
-{
-	struct string_list *list;
-	struct string_list_item *item;
-	char tail, *dir;
-	size_t len;
-
-	len = 0;
-	tail = 0;
-	list = &ctx.repo->submodules;
-	item = lookup_path(list, path);
-	if (!item) {
-		len = strlen(path);
-		tail = path[len - 1];
-		if (tail == '/') {
-			path[len - 1] = 0;
-			item = lookup_path(list, path);
-		}
-	}
-	if (item || ctx.repo->module_link) {
-		html("<a ");
-		if (class)
-			htmlf("class='%s' ", class);
-		html("href='");
-		if (item) {
-			html_attrf(item->util, rev);
-		} else {
-			dir = strrchr(path, '/');
-			if (dir)
-				dir++;
-			else
-				dir = path;
-			html_attrf(ctx.repo->module_link, dir, rev);
-		}
-		html("'>");
-		html_txt(path);
-		html("</a>");
-	} else {
-		html("<span");
-		if (class)
-			htmlf(" class='%s'", class);
-		html(">");
-		html_txt(path);
-		html("</span>");
-	}
-	html_txtf(" @ %.7s", rev);
-	if (item && tail)
-		path[len - 1] = tail;
-}
-
-const struct date_mode *cgit_date_mode(enum date_mode_type type)
-{
-	static struct date_mode mode;
-	mode.type = type;
-	mode.local = ctx.cfg.local_time;
-	return &mode;
-}
-
-static void print_rel_date(time_t t, int tz, double value,
-	const char *class, const char *suffix)
-{
-	htmlf("<span class='%s' title='", class);
-	html_attr(show_date(t, tz, cgit_date_mode(DATE_ISO8601)));
-	htmlf("'>%.0f %s</span>", value, suffix);
-}
-
-void cgit_print_age(time_t t, int tz, time_t max_relative)
-{
-	time_t now, secs;
-
-	if (!t)
-		return;
-	time(&now);
-	secs = now - t;
-	if (secs < 0)
-		secs = 0;
-
-	if (secs > max_relative && max_relative >= 0) {
-		html("<span title='");
-		html_attr(show_date(t, tz, cgit_date_mode(DATE_ISO8601)));
-		html("'>");
-		html_txt(show_date(t, tz, cgit_date_mode(DATE_SHORT)));
-		html("</span>");
-		return;
-	}
-
-	if (secs < TM_HOUR * 2) {
-		print_rel_date(t, tz, secs * 1.0 / TM_MIN, "age-mins", "min.");
-		return;
-	}
-	if (secs < TM_DAY * 2) {
-		print_rel_date(t, tz, secs * 1.0 / TM_HOUR, "age-hours", "hours");
-		return;
-	}
-	if (secs < TM_WEEK * 2) {
-		print_rel_date(t, tz, secs * 1.0 / TM_DAY, "age-days", "days");
-		return;
-	}
-	if (secs < TM_MONTH * 2) {
-		print_rel_date(t, tz, secs * 1.0 / TM_WEEK, "age-weeks", "weeks");
-		return;
-	}
-	if (secs < TM_YEAR * 2) {
-		print_rel_date(t, tz, secs * 1.0 / TM_MONTH, "age-months", "months");
-		return;
-	}
-	print_rel_date(t, tz, secs * 1.0 / TM_YEAR, "age-years", "years");
-}
-
-void cgit_print_http_headers(void)
-{
-	if (ctx.env.no_http && !strcmp(ctx.env.no_http, "1"))
-		return;
-
-	if (ctx.page.status)
-		htmlf("Status: %d %s\n", ctx.page.status, ctx.page.statusmsg);
-	if (ctx.page.mimetype && ctx.page.charset)
-		htmlf("Content-Type: %s; charset=%s\n", ctx.page.mimetype,
-		      ctx.page.charset);
-	else if (ctx.page.mimetype)
-		htmlf("Content-Type: %s\n", ctx.page.mimetype);
-	if (ctx.page.size)
-		htmlf("Content-Length: %zd\n", ctx.page.size);
-	if (ctx.page.filename) {
-		html("Content-Disposition: inline; filename=\"");
-		html_header_arg_in_quotes(ctx.page.filename);
-		html("\"\n");
-	}
-	if (!ctx.env.authenticated)
-		html("Cache-Control: no-cache, no-store\n");
-	htmlf("Last-Modified: %s\n", http_date(ctx.page.modified));
-	htmlf("Expires: %s\n", http_date(ctx.page.expires));
-	if (ctx.page.etag)
-		htmlf("ETag: \"%s\"\n", ctx.page.etag);
-	html("\n");
-	if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
-		exit(0);
-}
-
-void cgit_redirect(const char *url, bool permanent)
-{
-	htmlf("Status: %d %s\n", permanent ? 301 : 302, permanent ? "Moved" : "Found");
-	html("Location: ");
-	html_url_path(url);
-	html("\n\n");
-}
-
-static void print_rel_vcs_link(const char *url)
-{
-	html("<link rel='vcs-git' href='");
-	html_attr(url);
-	html("' title='");
-	html_attr(ctx.repo->name);
-	html(" Git repository'/>\n");
-}
-
-void cgit_print_docstart(void)
-{
-	char *host = cgit_hosturl();
-
-	if (ctx.cfg.embedded) {
-		if (ctx.cfg.header)
-			html_include(ctx.cfg.header);
-		return;
-	}
-
-	html(cgit_doctype);
-	html("<html lang='en'>\n");
-	html("<head>\n");
-	html("<title>");
-	html_txt(ctx.page.title);
-	html("</title>\n");
-	htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
-	if (ctx.cfg.robots && *ctx.cfg.robots)
-		htmlf("<meta name='robots' content='%s'/>\n", ctx.cfg.robots);
-	html("<link rel='stylesheet' type='text/css' href='");
-	html_attr(ctx.cfg.css);
-	html("'/>\n");
-	if (ctx.cfg.favicon) {
-		html("<link rel='shortcut icon' href='");
-		html_attr(ctx.cfg.favicon);
-		html("'/>\n");
-	}
-	if (host && ctx.repo && ctx.qry.head) {
-		char *fileurl;
-		struct strbuf sb = STRBUF_INIT;
-		strbuf_addf(&sb, "h=%s", ctx.qry.head);
-
-		html("<link rel='alternate' title='Atom feed' href='");
-		html(cgit_httpscheme());
-		html_attr(host);
-		fileurl = cgit_fileurl(ctx.repo->url, "atom", ctx.qry.vpath,
-				       sb.buf);
-		html_attr(fileurl);
-		html("' type='application/atom+xml'/>\n");
-		strbuf_release(&sb);
-		free(fileurl);
-	}
-	if (ctx.repo)
-		cgit_add_clone_urls(print_rel_vcs_link);
-	if (ctx.cfg.head_include)
-		html_include(ctx.cfg.head_include);
-	if (ctx.repo && ctx.repo->extra_head_content)
-		html(ctx.repo->extra_head_content);
-	html("</head>\n");
-	html("<body>\n");
-	if (ctx.cfg.header)
-		html_include(ctx.cfg.header);
-	free(host);
-}
-
-void cgit_print_docend(void)
-{
-	html("</div> <!-- class=content -->\n");
-	if (ctx.cfg.embedded) {
-		html("</div> <!-- id=cgit -->\n");
-		if (ctx.cfg.footer)
-			html_include(ctx.cfg.footer);
-		return;
-	}
-	if (ctx.cfg.footer)
-		html_include(ctx.cfg.footer);
-	else {
-		htmlf("<div class='footer'>generated by <a href='https://git.causal.agency/src/log/www/git.causal.agency/cgit'>cgit %s</a> "
-			"(<a href='https://git-scm.com/'>git %s</a>) at ", cgit_version, git_version_string);
-		html_txt(show_date(time(NULL), 0, cgit_date_mode(DATE_ISO8601)));
-		html("</div>\n");
-	}
-	html("</div> <!-- id=cgit -->\n");
-	html("</body>\n</html>\n");
-}
-
-void cgit_print_error_page(int code, const char *msg, const char *fmt, ...)
-{
-	va_list ap;
-	ctx.page.expires = ctx.cfg.cache_dynamic_ttl;
-	ctx.page.status = code;
-	ctx.page.statusmsg = msg;
-	cgit_print_layout_start();
-	va_start(ap, fmt);
-	cgit_vprint_error(fmt, ap);
-	va_end(ap);
-	cgit_print_layout_end();
-}
-
-void cgit_print_layout_start(void)
-{
-	cgit_print_http_headers();
-	cgit_print_docstart();
-	cgit_print_pageheader();
-}
-
-void cgit_print_layout_end(void)
-{
-	cgit_print_docend();
-}
-
-static void add_clone_urls(void (*fn)(const char *), char *txt, char *suffix)
-{
-	struct strbuf **url_list = strbuf_split_str(txt, ' ', 0);
-	int i;
-
-	for (i = 0; url_list[i]; i++) {
-		strbuf_rtrim(url_list[i]);
-		if (url_list[i]->len == 0)
-			continue;
-		if (suffix && *suffix)
-			strbuf_addf(url_list[i], "/%s", suffix);
-		fn(url_list[i]->buf);
-	}
-
-	strbuf_list_free(url_list);
-}
-
-void cgit_add_clone_urls(void (*fn)(const char *))
-{
-	if (ctx.repo->clone_url)
-		add_clone_urls(fn, expand_macros(ctx.repo->clone_url), NULL);
-	else if (ctx.cfg.clone_prefix)
-		add_clone_urls(fn, ctx.cfg.clone_prefix, ctx.repo->url);
-}
-
-static int print_this_commit_option(void)
-{
-	struct object_id oid;
-	if (!ctx.qry.head || get_oid(ctx.qry.head, &oid))
-		return 1;
-	html_option(oid_to_hex(&oid), "this commit", ctx.qry.head);
-	return 0;
-}
-
-static int print_branch_option(const char *refname, const struct object_id *oid,
-			       int flags, void *cb_data)
-{
-	char *name = (char *)refname;
-	html_option(name, name, ctx.qry.head);
-	return 0;
-}
-
-void cgit_add_hidden_formfields(int incl_head, int incl_search,
-				const char *page)
-{
-	if (!ctx.cfg.virtual_root) {
-		struct strbuf url = STRBUF_INIT;
-
-		strbuf_addf(&url, "%s/%s", ctx.qry.repo, page);
-		if (ctx.qry.vpath)
-			strbuf_addf(&url, "/%s", ctx.qry.vpath);
-		html_hidden("url", url.buf);
-		strbuf_release(&url);
-	}
-
-	if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
-	    strcmp(ctx.qry.head, ctx.repo->defbranch))
-		html_hidden("h", ctx.qry.head);
-
-	if (ctx.qry.oid)
-		html_hidden("id", ctx.qry.oid);
-	if (ctx.qry.oid2)
-		html_hidden("id2", ctx.qry.oid2);
-	if (ctx.qry.showmsg)
-		html_hidden("showmsg", "1");
-
-	if (incl_search) {
-		if (ctx.qry.grep)
-			html_hidden("qt", ctx.qry.grep);
-		if (ctx.qry.search)
-			html_hidden("q", ctx.qry.search);
-	}
-}
-
-static const char *hc(const char *page)
-{
-	if (!ctx.qry.page)
-		return NULL;
-
-	return strcmp(ctx.qry.page, page) ? NULL : "active";
-}
-
-static void cgit_print_path_crumbs(char *path)
-{
-	char *old_path = ctx.qry.path;
-	char *p = path, *q, *end = path + strlen(path);
-	int levels = 0;
-
-	ctx.qry.path = NULL;
-	cgit_self_link("root", NULL, NULL);
-	ctx.qry.path = p = path;
-	while (p < end) {
-		if (!(q = strchr(p, '/')) || levels > 15)
-			q = end;
-		*q = '\0';
-		html_txt("/");
-		cgit_self_link(p, NULL, NULL);
-		if (q < end)
-			*q = '/';
-		p = q + 1;
-		++levels;
-	}
-	ctx.qry.path = old_path;
-}
-
-static void print_header(void)
-{
-	char *logo = NULL, *logo_link = NULL;
-
-	html("<table id='header'>\n");
-	html("<tr>\n");
-
-	if (ctx.repo && ctx.repo->logo && *ctx.repo->logo)
-		logo = ctx.repo->logo;
-	else
-		logo = ctx.cfg.logo;
-	if (ctx.repo && ctx.repo->logo_link && *ctx.repo->logo_link)
-		logo_link = ctx.repo->logo_link;
-	else
-		logo_link = ctx.cfg.logo_link;
-	if (logo && *logo) {
-		html("<td class='logo' rowspan='2'><a href='");
-		if (logo_link && *logo_link)
-			html_attr(logo_link);
-		else
-			html_attr(cgit_rooturl());
-		html("'><img src='");
-		html_attr(logo);
-		html("' alt='cgit logo'/></a></td>\n");
-	}
-
-	html("<td class='main'>");
-	if (ctx.repo) {
-		cgit_index_link("index", NULL, NULL, NULL, NULL, 0, 1);
-		html(" : ");
-		cgit_summary_link(ctx.repo->name, NULL, NULL, NULL);
-		if (ctx.env.authenticated) {
-			html("</td><td class='form'>");
-			html("<form method='get'>\n");
-			cgit_add_hidden_formfields(0, 1, ctx.qry.page);
-			html("<select name='h' onchange='this.form.submit();'>\n");
-			print_this_commit_option();
-			html("<optgroup label='branches'>");
-			for_each_branch_ref(print_branch_option, ctx.qry.head);
-			if (ctx.repo->enable_remote_branches)
-				for_each_remote_ref(print_branch_option, ctx.qry.head);
-			html("</optgroup>");
-			html("</select> ");
-			html("<input type='submit' value='switch'/>");
-			html("</form>");
-		}
-	} else
-		html_txt(ctx.cfg.root_title);
-	html("</td></tr>\n");
-
-	html("<tr><td class='sub'>");
-	if (ctx.repo) {
-		html_txt(ctx.repo->desc);
-		html("</td><td class='sub right'>");
-		if (ctx.repo->owner_filter) {
-			cgit_open_filter(ctx.repo->owner_filter);
-			html_txt(ctx.repo->owner);
-			cgit_close_filter(ctx.repo->owner_filter);
-		} else {
-			html_txt(ctx.repo->owner);
-		}
-	} else {
-		if (ctx.cfg.root_desc)
-			html_txt(ctx.cfg.root_desc);
-	}
-	html("</td></tr></table>\n");
-}
-
-void cgit_print_pageheader(void)
-{
-	html("<div id='cgit'>");
-	if (!ctx.env.authenticated || !ctx.cfg.noheader)
-		print_header();
-
-	html("<table class='tabs'><tr><td>\n");
-	if (ctx.env.authenticated && ctx.repo) {
-		if (ctx.repo->readme.nr) {
-			reporevlink("about", "about", NULL,
-				    hc("about"), ctx.qry.head, NULL,
-				    NULL);
-			html(" ");
-		}
-		cgit_summary_link("summary", NULL, hc("summary"),
-				  ctx.qry.head);
-		html(" ");
-		cgit_refs_link("refs", NULL, hc("refs"), ctx.qry.head,
-			       ctx.qry.oid, NULL);
-		html(" ");
-		cgit_log_link("log", NULL, hc("log"), ctx.qry.head,
-			      NULL, ctx.qry.vpath, 0, NULL, NULL,
-			      ctx.qry.showmsg, ctx.qry.follow);
-		html(" ");
-		if (ctx.qry.page && !strcmp(ctx.qry.page, "blame"))
-			cgit_blame_link("blame", NULL, hc("blame"), ctx.qry.head,
-				        ctx.qry.oid, ctx.qry.vpath);
-		else
-			cgit_tree_link("tree", NULL, hc("tree"), ctx.qry.head,
-				       ctx.qry.oid, ctx.qry.vpath);
-		html(" ");
-		cgit_commit_link("commit", NULL, hc("commit"),
-				 ctx.qry.head, ctx.qry.oid, ctx.qry.vpath);
-		html(" ");
-		cgit_diff_link("diff", NULL, hc("diff"), ctx.qry.head,
-			       ctx.qry.oid, ctx.qry.oid2, ctx.qry.vpath);
-		if (ctx.repo->max_stats) {
-			html(" ");
-			cgit_stats_link("stats", NULL, hc("stats"),
-					ctx.qry.head, ctx.qry.vpath);
-		}
-		if (ctx.repo->homepage) {
-			html(" <a href='");
-			html_attr(ctx.repo->homepage);
-			html("'>homepage</a>");
-		}
-		html("</td><td class='form'>");
-		html("<form class='right' method='get' action='");
-		if (ctx.cfg.virtual_root) {
-			char *fileurl = cgit_fileurl(ctx.qry.repo, "log",
-						   ctx.qry.vpath, NULL);
-			html_url_path(fileurl);
-			free(fileurl);
-		}
-		html("'>\n");
-		cgit_add_hidden_formfields(1, 0, "log");
-		html("<select name='qt'>\n");
-		html_option("grep", "log msg", ctx.qry.grep);
-		html_option("author", "author", ctx.qry.grep);
-		html_option("committer", "committer", ctx.qry.grep);
-		html_option("range", "range", ctx.qry.grep);
-		html("</select>\n");
-		html("<input class='txt' type='search' size='10' name='q' value='");
-		html_attr(ctx.qry.search);
-		html("'/>\n");
-		html("<input type='submit' value='search'/>\n");
-		html("</form>\n");
-	} else if (ctx.env.authenticated) {
-		char *currenturl = cgit_currenturl();
-		site_link(NULL, "index", NULL, hc("repolist"), NULL, NULL, 0, 1);
-		if (ctx.cfg.root_readme)
-			site_link("about", "about", NULL, hc("about"),
-				  NULL, NULL, 0, 1);
-		html("</td><td class='form'>");
-		html("<form method='get' action='");
-		html_attr(currenturl);
-		html("'>\n");
-		html("<input type='search' name='q' size='10' value='");
-		html_attr(ctx.qry.search);
-		html("'/>\n");
-		html("<input type='submit' value='search'/>\n");
-		html("</form>");
-		free(currenturl);
-	}
-	html("</td></tr></table>\n");
-	if (ctx.env.authenticated && ctx.repo && ctx.qry.vpath) {
-		html("<div class='path'>");
-		html("path: ");
-		cgit_print_path_crumbs(ctx.qry.vpath);
-		if (ctx.cfg.enable_follow_links && !strcmp(ctx.qry.page, "log")) {
-			html(" (");
-			ctx.qry.follow = !ctx.qry.follow;
-			cgit_self_link(ctx.qry.follow ? "follow" : "unfollow",
-					NULL, NULL);
-			ctx.qry.follow = !ctx.qry.follow;
-			html(")");
-		}
-		html("</div>");
-	}
-	html("<div class='content'>");
-}
-
-void cgit_print_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);
-}
-
-void cgit_compose_snapshot_prefix(struct strbuf *filename, const char *base,
-				  const char *ref)
-{
-	struct object_id oid;
-
-	/*
-	 * Prettify snapshot names by stripping leading "v" or "V" if the tag
-	 * name starts with {v,V}[0-9] and the prettify mapping is injective,
-	 * i.e. each stripped tag can be inverted without ambiguities.
-	 */
-	if (get_oid(fmt("refs/tags/%s", ref), &oid) == 0 &&
-	    (ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]) &&
-	    ((get_oid(fmt("refs/tags/%s", ref + 1), &oid) == 0) +
-	     (get_oid(fmt("refs/tags/v%s", ref + 1), &oid) == 0) +
-	     (get_oid(fmt("refs/tags/V%s", ref + 1), &oid) == 0) == 1))
-		ref++;
-
-	strbuf_addf(filename, "%s-%s", base, ref);
-}
-
-void cgit_print_snapshot_links(const struct cgit_repo *repo, const char *ref,
-			       const char *separator)
-{
-	const struct cgit_snapshot_format *f;
-	struct strbuf filename = STRBUF_INIT;
-	const char *basename;
-	size_t prefixlen;
-
-	basename = cgit_snapshot_prefix(repo);
-	if (starts_with(ref, basename))
-		strbuf_addstr(&filename, ref);
-	else
-		cgit_compose_snapshot_prefix(&filename, basename, ref);
-
-	prefixlen = filename.len;
-	for (f = cgit_snapshot_formats; f->suffix; f++) {
-		if (!(repo->snapshots & cgit_snapshot_format_bit(f)))
-			continue;
-		strbuf_setlen(&filename, prefixlen);
-		strbuf_addstr(&filename, f->suffix);
-		cgit_snapshot_link(filename.buf, NULL, NULL, NULL, NULL,
-				   filename.buf);
-		if (cgit_snapshot_get_sig(ref, f)) {
-			strbuf_addstr(&filename, ".asc");
-			html(" (");
-			cgit_snapshot_link("sig", NULL, NULL, NULL, NULL,
-					   filename.buf);
-			html(")");
-		} else if (starts_with(f->suffix, ".tar") && cgit_snapshot_get_sig(ref, &cgit_snapshot_formats[0])) {
-			strbuf_setlen(&filename, strlen(filename.buf) - strlen(f->suffix));
-			strbuf_addstr(&filename, ".tar.asc");
-			html(" (");
-			cgit_snapshot_link("sig", NULL, NULL, NULL, NULL,
-					   filename.buf);
-			html(")");
-		}
-		html(separator);
-	}
-	strbuf_release(&filename);
-}
-
-void cgit_set_title_from_path(const char *path)
-{
-	struct strbuf sb = STRBUF_INIT;
-	const char *slash, *last_slash;
-
-	if (!path)
-		return;
-
-	last_slash = path + strlen(path);
-	for (slash = last_slash; slash > path; --slash) {
-		if (*slash != '/') continue;
-		strbuf_add(&sb, slash + 1, last_slash - slash - 1);
-		strbuf_addstr(&sb, " \xc2\xab ");
-		last_slash = slash;
-	}
-	strbuf_add(&sb, path, last_slash - path);
-	strbuf_addf(&sb, " - %s", ctx.page.title);
-	ctx.page.title = strbuf_detach(&sb, NULL);
-}