/* 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<style>pre { line-height: 125%; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="cp">#ifndef CMD_H</span>
<span class="cp">#define CMD_H</span>

<span class="k">typedef</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="p">(</span><span class="o">*</span><span class="n">cgit_cmd_fn</span><span class="p">)(</span><span class="k">struct</span><span class="w"> </span><span class="nc">cgit_context</span><span class="w"> </span><span class="o">*</span><span class="n">ctx</span><span class="p">);</span>

<span class="k">struct</span><span class="w"> </span><span class="nc">cgit_cmd</span><span class="w"> </span><span class="p">{</span>
<span class="w">	</span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">;</span>
<span class="w">	</span><span class="n">cgit_cmd_fn</span><span class="w"> </span><span class="n">fn</span><span class="p">;</span>
<span class="w">	</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">want_repo</span><span class="o">:</span><span class="mi">1</span><span class="p">,</span>
<span class="w">		</span><span class="nl">want_layout</span><span class="p">:</span><span class="mi">1</span><span class="p">,</span>
<span class="w">		</span><span class="nl">want_vpath</span><span class="p">:</span><span class="mi">1</span><span class="p">,</span>
<span class="w">		</span><span class="nl">is_clone</span><span class="p">:</span><span class="mi">1</span><span class="p">;</span>
<span class="p">};</span>

<span class="k">extern</span><span class="w"> </span><span class="k">struct</span><span class="w"> </span><span class="nc">cgit_cmd</span><span class="w"> </span><span class="o">*</span><span class="n">cgit_get_cmd</span><span class="p">(</span><span class="k">struct</span><span class="w"> </span><span class="nc">cgit_context</span><span class="w"> </span><span class="o">*</span><span class="n">ctx</span><span class="p">);</span>

<span class="cp">#endif </span><span class="cm">/* CMD_H */</span>
</pre></div>
</code></pre></td></tr></table>
</div> <!-- class=content -->
<div class='footer'>generated by <a href='https://git.zx2c4.com/cgit/about/'>cgit v1.2.3-54-g00ecf</a> (<a href='https://git-scm.com/'>git 2.39.0</a>) at 2025-04-06 02:59:12 +0000</div>
</div> <!-- id=cgit -->
</body>
</html>
tatic 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)) {
			ctx.cfg.cache_root = xstrdup(argv[i]+8);
		}
		if (!strcmp(argv[i], "--nocache")) {
			ctx.cfg.nocache = 1;
		}
		if (!strncmp(argv[i], "--query=", 8)) {
			ctx.qry.raw = xstrdup(argv[i]+8);
		}
		if (!strncmp(argv[i], "--repo=", 7)) {
			ctx.qry.repo = xstrdup(argv[i]+7);
		}
		if (!strncmp(argv[i], "--page=", 7)) {
			ctx.qry.page = xstrdup(argv[i]+7);
		}
		if (!strncmp(argv[i], "--head=", 7)) {
			ctx.qry.head = xstrdup(argv[i]+7);
			ctx.qry.has_symref = 1;
		}
		if (!strncmp(argv[i], "--sha1=", 7)) {
			ctx.qry.sha1 = xstrdup(argv[i]+7);
			ctx.qry.has_sha1 = 1;
		}
		if (!strncmp(argv[i], "--ofs=", 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");

	prepare_context(&ctx);
	item.st.st_mtime = time(NULL);
	cgit_repolist.length = 0;
	cgit_repolist.count = 0;
	cgit_repolist.repos = NULL;

	parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
			 config_cb);
	ctx.repo = NULL;
	if (getenv("SCRIPT_NAME"))
		ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME"));
	if (getenv("QUERY_STRING"))
		ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));
	cgit_parse_args(argc, argv);
	http_parse_querystring(ctx.qry.raw, querystring_cb);
	if (!cgit_prepare_cache(&item))
		return 0;
	if (ctx.cfg.nocache) {
		cgit_fill_cache(&item, 0);
	} else {
		cgit_check_cache(&item);
		cgit_print_cache(&item);
	}
	return 0;
}