parsing.c


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1/* parsing.c: parsing of config files
 *
 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"

/*
 * 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 *c, *cmd, *p;
	struct cgit_repo *repo;

	if (!url || url[0] == '\0')
		return;

	ctx.qry.page = NULL;
	ctx.repo = cgit_get_repoinfo(url);
	if (ctx.repo) {
		ctx.qry.repo = ctx.repo->url;
		return;
	}

	cmd = NULL;
	c = strchr(url, '/');
	while (c) {
		c[0] = '\0';
		repo = cgit_get_repoinfo(url);
		if (repo) {
			ctx.repo = repo;
			cmd = c;
		}
		c[0] = '/';
		c = strchr(c + 1, '/');
	}

	if (ctx.repo) {
		ctx.qry.repo = ctx.repo->url;
		p = strchr(cmd + 1, '/');
		if (p) {
			p[0] = '\0';
			if (p[1])
				ctx.qry.path = trim_end(p + 1, '/');
		}
		if (cmd[1])
			ctx.qry.page = xstrdup(cmd + 1);
	}
}

static char *substr(const char *head, const char *tail)
{
	char *buf;

	if (tail < head)
		return xstrdup("");
	buf = xmalloc(tail - head + 1);
	strlcpy(buf, head, tail - head + 1);
	return buf;
}

static void parse_user(const char *t, char **name, char **email, unsigned long *date, int *tz)
{
	struct ident_split ident;
	unsigned email_len;

	if (!split_ident_line(&ident, t, strchrnul(t, '\n') - t)) {
		*name = substr(ident.name_begin, ident.name_end);

		email_len = ident.mail_end - ident.mail_begin;
		*email = xmalloc(strlen("<") + email_len + strlen(">") + 1);
		xsnprintf(*email, email_len + 3, "<%.*s>", email_len, ident.mail_begin);

		if (ident.date_begin)
			*date = strtoul(ident.date_begin, NULL, 10);
		if (ident.tz_begin)
			*tz = atoi(ident.tz_begin);
	}
}

#ifdef NO_ICONV
#define reencode(a, b, c)
#else
static const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
{
	char *tmp;

	if (!txt)
		return NULL;

	if (!*txt || !src_enc || !dst_enc)
		return *txt;

	/* no encoding needed if src_enc equals dst_enc */
	if (!strcasecmp(src_enc, dst_enc))
		return *txt;

	tmp = reencode_string(*txt, dst_enc, src_enc);
	if