summaryrefslogtreecommitdiffstatshomepage
Commit message (Expand)AuthorAge
...
| * | Sort tags by ageLars Hjemli2007-10-27
| * | Use reflist to print tag infoLars Hjemli2007-10-27
| * | Use reflist to print branch infoLars Hjemli2007-10-27
| * | Add functions and types for ref listsLars Hjemli2007-10-27
|/ /
* | Merge branch 'stable'Lars Hjemli2007-10-27
|\|
| * Skip unknown header fields when parsing tags and commitsLars Hjemli2007-10-27
* | Merge branch 'stable'Lars Hjemli2007-10-05
|\|
| * correct typo in CSSMichael Krelin2007-10-05
* | Merge branch 'stable'Lars Hjemli2007-10-01
|\|
| * Use git-1.5.3.3Lars Hjemli2007-10-01
* | cgit.css: make diff headers more visibleLars Hjemli2007-10-01
* | ui-diff: add links to pre- and postversion of blobsLars Hjemli2007-10-01
* | gen-version.sh: don't sed the output from git describeLars Hjemli2007-10-01
* | css: remove the annoying tr:hover rule for diffstatLars Hjemli2007-10-01
* | ui-commit.c: link to diff instead of tree from diffstatLars Hjemli2007-10-01
* | Add prefix parameter to cgit_print_diff()Lars Hjemli2007-10-01
* | Add prefix parameter to cgit_diff_tree()Lars Hjemli2007-10-01
* | Add support for a renamelimit option in cgitrcLars Hjemli2007-09-25
|/
* cgit v0.6.3v0.6.3Lars Hjemli2007-09-20
* Upgrade to GIT 1.5.3.2Lars Hjemli2007-09-20
* Use trim_end() to remove trailing slashesLars Hjemli2007-09-20
* Remove a few compiler warningsLars Hjemli2007-09-20
* Add cgit.conf to .gitignore, remove *~Lars Hjemli2007-09-20
* ui-tree: show last line of blobLars Hjemli2007-09-20
* ui-tree: specify parameter position for all htmlf formatsLars Hjemli2007-09-19
* fixed typo in cgitrcMichael Krelin2007-09-14
* Improve the sample cgitrc fileChris Pickel2007-09-09
* cgit v0.6.2v0.6.2Lars Hjemli2007-09-08
* Revert part of "Makefile: add support for DESTDIR"Lars Hjemli2007-09-08
* Revert "Makefile: add missing references to DESTDIR"Lars Hjemli2007-09-08
* cgit v0.6.1v0.6.1Lars Hjemli2007-09-08
* Makefile: add missing references to DESTDIRLars Hjemli2007-09-08
* Make cgit honor CACHE_ROOT as defined in MakefileChris Pickel2007-09-08
* Makefile: add support for DESTDIRChris Pickel2007-09-08
* cgit v0.6v0.6Lars Hjemli2007-09-04
* Update READMELars Hjemli2007-09-04
* Set xdemitconf_t.findfunc=NULLLars Hjemli2007-09-04
* Merge branch 'jo/dirlink'Lars Hjemli2007-09-03
|\
| * Rename dirlink to gitlink.Jeffrey C. Ollie2007-06-04
* | Use git-1.5.3 as submoduleLars Hjemli2007-09-03
* | Delete submodules.sh and prepare for using git-submoduleLars Hjemli2007-09-03
* | Makefile: add target "get-git"Lars Hjemli2007-09-03
* | Rewrite the makefile + gen-version.shLars Hjemli2007-09-03
* | ui-snapshot: whitespace/formatting cleanupLars Hjemli2007-07-23
* | Make ui-tag.c generate valid xhtmlLars Hjemli2007-07-23
* | Add support for line number in url fragmentLars Hjemli2007-07-23
* | cgit_print_snapshot_links: use url to specify snapshot nameLars Hjemli2007-07-23
* | Merge branch 'master' of git://git.klever.net/patchwork/cgitLars Hjemli2007-07-22
|\ \
| * | link raw blob from tree file viewMichael Krelin2007-07-21
| * | fix: changed view link to blob in summary.Michael Krelin2007-07-21
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-01-16 00:55:49 +0000
id='n499' href='#n499'>499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 
/* 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"
#include "ui-stats.h"
#include "scan-tree.h"

const char *cgit_version = CGIT_VERSION;

void add_mimetype(const char *name, const char *value)
{
	struct string_list_item *item;

	item = string_list_insert(xstrdup(name), &ctx.cfg.mimetypes);
	item->util = xstrdup(value);
}

struct cgit_filter *new_filter(const char *cmd, int extra_args)
{
	struct cgit_filter *f;

	if (!cmd || !cmd[0])
		return NULL;

	f = xmalloc(sizeof(struct cgit_filter));
	f->cmd = xstrdup(cmd);
	f->argv = xmalloc((2 + extra_args) * sizeof(char *));
	f->argv[0] = f->cmd;
	f->argv[1] = NULL;
	return f;
}

void config_cb(const char *name, const char *value)
{
	if (!strcmp(name, "root-title"))
		ctx.cfg.root_title = xstrdup(value);
	else if (!strcmp(name, "root-desc"))
		ctx.cfg.root_desc = xstrdup(value);
	else if (!strcmp(name, "root-readme"))
		ctx.cfg.root_readme = xstrdup(value);
	else if (!strcmp(name, "css"))
		ctx.cfg.css = xstrdup(value);
	else if (!strcmp(name, "favicon"))
		ctx.cfg.favicon = xstrdup(value);
	else if (!strcmp(name, "footer"))
		ctx.cfg.footer = xstrdup(value);
	else if (!strcmp(name, "head-include"))
		ctx.cfg.head_include = xstrdup(value);
	else if (!strcmp(name, "header"))
		ctx.cfg.header = 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, "noplainemail"))
		ctx.cfg.noplainemail = atoi(value);
	else if (!strcmp(name, "noheader"))
		ctx.cfg.noheader = 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, "max-stats"))
		ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
	else if (!strcmp(name, "cache-size"))
		ctx.cfg.cache_size = 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, "about-filter"))
		ctx.cfg.about_filter = new_filter(value, 0);
	else if (!strcmp(name, "commit-filter"))
		ctx.cfg.commit_filter = new_filter(value, 0);
	else if (!strcmp(name, "embedded"))
		ctx.cfg.embedded = 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-repo-count"))
		ctx.cfg.max_repo_count = atoi(value);
	else if (!strcmp(name, "max-commit-count"))
		ctx.cfg.max_commit_count = atoi(value);
	else if (!strcmp(name, "source-filter"))
		ctx.cfg.source_filter = new_filter(value, 1);
	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, "local-time"))
		ctx.cfg.local_time = atoi(value);
	else if (!prefixcmp(name, "mimetype."))
		add_mimetype(name + 9, 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.max-stats"))
		ctx.repo->max_stats = cgit_find_stats_period(value, NULL);
	else if (ctx.repo && !strcmp(name, "repo.module-link"))
		ctx.repo->module_link= xstrdup(value);
	else if (ctx.repo && !strcmp(name, "repo.about-filter"))
		ctx.repo->about_filter = new_filter(value, 0);
	else if (ctx.repo && !strcmp(name, "repo.commit-filter"))
		ctx.repo->commit_filter = new_filter(value, 0);
	else if (ctx.repo && !strcmp(name, "repo.source-filter"))
		ctx.repo->source_filter = new_filter(value, 1);
	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 (!value)
		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")) {
		ctx.qry.url = xstrdup(value);
		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);
	} else if (!strcmp(name, "mimetype")) {
		ctx.qry.mimetype = xstrdup(value);
	} else if (!strcmp(name, "s")){
		ctx.qry.sort = xstrdup(value);
	} else if (!strcmp(name, "showmsg")) {
		ctx.qry.showmsg = atoi(value);
	} else if (!strcmp(name, "period")) {
		ctx.qry.period = xstrdup(value);
	}
}

char *xstrdupn(const char *str)
{
	return (str ? xstrdup(str) : NULL);
}

static void prepare_context(struct cgit_context *ctx)
{
	memset(ctx, 0, sizeof(ctx));
	ctx->cfg.agefile = "info/web/last-modified";
	ctx->cfg.nocache = 0;
	ctx->cfg.cache_size = 0;
	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 = "/cgit.png";
	ctx->cfg.local_time = 0;
	ctx->cfg.max_repo_count = 50;
	ctx->cfg.max_commit_count = 50;
	ctx->cfg.max_lock_attempts = 5;
	ctx->cfg.max_msg_len = 80;
	ctx->cfg.max_repodesc_len = 80;
	ctx->cfg.max_stats = 0;
	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.root_desc = "a fast webinterface for the git dscm";
	ctx->cfg.script_name = CGIT_SCRIPT_NAME;
	ctx->cfg.summary_branches = 10;
	ctx->cfg.summary_log = 10;
	ctx->cfg.summary_tags = 10;
	ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
	ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
	ctx->env.https = xstrdupn(getenv("HTTPS"));
	ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
	ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
	ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
	ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
	ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
	ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
	ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
	ctx->page.mimetype = "text/html";
	ctx->page.charset = PAGE_ENCODING;
	ctx->page.filename = NULL;
	ctx->page.size = 0;
	ctx->page.modified = time(NULL);
	ctx->page.expires = ctx->page.modified;
	ctx->page.etag = NULL;
	memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
	if (ctx->env.script_name)
		ctx->cfg.script_name = ctx->env.script_name;
	if (ctx->env.query_string)
		ctx->qry.raw = ctx->env.query_string;
	if (!ctx->env.cgit_config)
		ctx->env.cgit_config = CGIT_CONFIG;
}

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 cgit_repo *repo)
{
	struct refmatch info;
	char *ref;

	info.req_ref = repo->defbranch;
	info.first_ref = NULL;
	info.match = 0;
	for_each_branch_ref(find_current_ref, &info);
	if (info.match)
		ref = info.req_ref;
	else
		ref = info.first_ref;
	if (ref)
		ref = xstrdup(ref);
	return ref;
}

static int prepare_repo_cmd(struct cgit_context *ctx)
{
	char *tmp;
	unsigned char sha1[20];
	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 1;
	}
	ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);

	if (!ctx->qry.head) {
		ctx->qry.nohead = 1;
		ctx->qry.head = find_default_branch(ctx->repo);
		ctx->repo->defbranch = ctx->qry.head;
	}

	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 1;
	}

	if (get_sha1(ctx->qry.head, sha1)) {
		tmp = xstrdup(ctx->qry.head);
		ctx->qry.head = ctx->repo->defbranch;
		ctx->page.status = 404;
		ctx->page.statusmsg = "not found";
		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 1;
	}
	return 0;
}

static void process_request(void *cbdata)
{
	struct cgit_context *ctx = cbdata;
	struct cgit_cmd *cmd;

	cmd = cgit_get_cmd(ctx);
	if (!cmd) {
		ctx->page.title = "cgit error";
		cgit_print_http_headers(ctx);
		cgit_print_docstart(ctx);
		cgit_print_pageheader(ctx);
		cgit_print_error("Invalid request");
		cgit_print_docend();
		return;
	}

	if (cmd->want_repo && !ctx->repo) {
		cgit_print_http_headers(ctx);
		cgit_print_docstart(ctx);
		cgit_print_pageheader(ctx);
		cgit_print_error(fmt("No repository selected"));
		cgit_print_docend();
		return;
	}

	if (ctx->repo && prepare_repo_cmd(ctx))
		return;

	if (cmd->want_layout) {
		cgit_print_http_headers(ctx);
		cgit_print_docstart(ctx);
		cgit_print_pageheader(ctx);
	}

	cmd->fn(ctx);

	if (cmd->want_layout)
		cgit_print_docend();
}

int cmp_repos(const void *a, const void *b)
{
	const struct cgit_repo *ra = a, *rb = b;
	return strcmp(ra->url, rb->url);
}

void print_repo(struct cgit_repo *repo)
{
	printf("repo.url=%s\n", repo->url);
	printf("repo.name=%s\n", repo->name);
	printf("repo.path=%s\n", repo->path);
	if (repo->owner)
		printf("repo.owner=%s\n", repo->owner);
	if (repo->desc)
		printf("repo.desc=%s\n", repo->desc);
	if (repo->readme)
		printf("repo.readme=%s\n", repo->readme);
	printf("\n");
}

void print_repolist(struct cgit_repolist *list)
{
	int i;

	for(i = 0; i < list->count; i++)
		print_repo(&list->repos[i]);
}


static void cgit_parse_args(int argc, const char **argv)
{
	int i;
	int scan = 0;

	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 (!strcmp(argv[i], "--nohttp")) {
			ctx.env.no_http = "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);
		}
		if (!strncmp(argv[i], "--scan-tree=", 12)) {
			scan++;
			scan_tree(argv[i] + 12);
		}
	}
	if (scan) {
		qsort(cgit_repolist.repos, cgit_repolist.count,
			sizeof(struct cgit_repo), cmp_repos);
		print_repolist(&cgit_repolist);
		exit(0);
	}
}

static int calc_ttl()
{
	if (!ctx.repo)
		return ctx.cfg.cache_root_ttl;

	if (!ctx.qry.page)
		return ctx.cfg.cache_repo_ttl;

	if (ctx.qry.has_symref)
		return ctx.cfg.cache_dynamic_ttl;

	if (ctx.qry.has_sha1)
		return ctx.cfg.cache_static_ttl;

	return ctx.cfg.cache_repo_ttl;
}

int main(int argc, const char **argv)
{
	const char *path;
	char *qry;
	int err, ttl;

	prepare_context(&ctx);
	cgit_repolist.length = 0;
	cgit_repolist.count = 0;
	cgit_repolist.repos = NULL;

	cgit_parse_args(argc, argv);
	parse_configfile(ctx.env.cgit_config, config_cb);
	ctx.repo = NULL;
	http_parse_querystring(ctx.qry.raw, querystring_cb);

	/* If virtual-root isn't specified in cgitrc, lets pretend
	 * that virtual-root equals SCRIPT_NAME.
	 */
	if (!ctx.cfg.virtual_root)
		ctx.cfg.virtual_root = ctx.cfg.script_name;

	/* If no url parameter is specified on the querystring, lets
	 * use PATH_INFO as url. This allows cgit to work with virtual
	 * urls without the need for rewriterules in the webserver (as
	 * long as PATH_INFO is included in the cache lookup key).
	 */
	path = ctx.env.path_info;
	if (!ctx.qry.url && path) {
		if (path[0] == '/')
			path++;
		ctx.qry.url = xstrdup(path);
		if (ctx.qry.raw) {
			qry = ctx.qry.raw;
			ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
			free(qry);
		} else
			ctx.qry.raw = ctx.qry.url;
		cgit_parse_url(ctx.qry.url);
	}

	ttl = calc_ttl();
	ctx.page.expires += ttl*60;
	if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
		ctx.cfg.nocache = 1;
	if (ctx.cfg.nocache)
		ctx.cfg.cache_size = 0;
	err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
			    ctx.qry.raw, ttl, process_request, &ctx);
	if (err)
		cgit_print_error(fmt("Error processing page: %s (%d)",
				     strerror(err), err));
	return err;
}