civetweb/unittest/private.c

/* Copyright (c) 2015-2020 the Civetweb developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

/**********************************************************************************/
/*
 * We include the civetweb.c source file so that we have access to the internal
 * private static functions
 */

#ifdef _MSC_VER
/* Since the C file is included, declare all API functions as static,
 * to avoid linker errors in the test (seems to be required for MS
 * toolchain only).
 */
#define CIVETWEB_API static
#endif

#include "../src/civetweb.c"
/**********************************************************************************/


/* Standard includes for the test code below */
#include <stdlib.h>
#include <time.h>

#include "private.h"


/* This unit test file uses the excellent Check unit testing library.
 * The API documentation is available here:
 * http://check.sourceforge.net/doc/check_html/index.html
 */

static char tmp_parse_buffer[1024];

static int
test_parse_http_response(char *buf, int len, struct mg_response_info *ri)
{
	ck_assert_int_lt(len, (int)sizeof(tmp_parse_buffer));
	memcpy(tmp_parse_buffer, buf, (size_t)len);
	return parse_http_response(tmp_parse_buffer, len, ri);
}

static int
test_parse_http_request(char *buf, int len, struct mg_request_info *ri)
{
	ck_assert_int_lt(len, (int)sizeof(tmp_parse_buffer));
	memcpy(tmp_parse_buffer, buf, (size_t)len);
	return parse_http_request(tmp_parse_buffer, len, ri);
}


START_TEST(test_parse_http_message)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	struct mg_request_info ri;
	struct mg_response_info respi;
	char empty[] = "";
	char space[] = " \x00";
	char req1[] = "GET / HTTP/1.1\r\n\r\n";
	char req2[] = "BLAH / HTTP/1.1\r\n\r\n";
	char req3[] = "GET / HTTP/1.1\nKey: Val\n\n";
	char req4[] =
	    "GET / HTTP/1.1\r\nA: foo bar\r\nB: bar\r\nskip\r\nbaz:\r\n\r\n";
	char req5[] = "GET / HTTP/1.0\n\n";
	char req6[] = "G";
	char req7[] = " blah ";
	char req8[] = "HTTP/1.0 404 Not Found\n\n";
	char req9[] = "HTTP/1.1 200 OK\r\nConnection: close\r\n\r\n";

	char req10[] = "GET / HTTP/1.1\r\nA: foo bar\r\nB: bar\r\n\r\n";

	char req11[] = "GET /\r\nError: X\r\n\r\n";

	char req12[] =
	    "POST /a/b/c.d?e=f&g HTTP/1.1\r\nKey1: val1\r\nKey2: val2\r\n\r\nBODY";

	int lenreq1 = (int)strlen(req1);
	int lenreq2 = (int)strlen(req2);
	int lenreq3 = (int)strlen(req3);
	int lenreq4 = (int)strlen(req4);
	int lenreq5 = (int)strlen(req5);
	int lenreq6 = (int)strlen(req6);
	int lenreq7 = (int)strlen(req7);
	int lenreq8 = (int)strlen(req8);
	int lenreq9 = (int)strlen(req9);
	int lenreq10 = (int)strlen(req10);
	int lenreq11 = (int)strlen(req11);
	int lenreq12 = (int)strlen(req12);
	int lenhdr12 = lenreq12 - 4; /* length without body */

	mark_point();

	/* An empty string is neither a complete request nor a complete
	 * response, so it must return 0 */
	ck_assert_int_eq(0, get_http_header_len(empty, 0));
	ck_assert_int_eq(0, test_parse_http_request(empty, 0, &ri));
	ck_assert_int_eq(0, test_parse_http_response(empty, 0, &respi));

	/* Same is true for a leading space */
	ck_assert_int_eq(0, get_http_header_len(space, 1));
	ck_assert_int_eq(0, test_parse_http_request(space, 1, &ri));
	ck_assert_int_eq(0, test_parse_http_response(space, 1, &respi));

	/* But a control character (like 0) makes it invalid */
	ck_assert_int_eq(-1, get_http_header_len(space, 2));
	ck_assert_int_eq(-1, test_parse_http_request(space, 2, &ri));
	ck_assert_int_eq(-1, test_parse_http_response(space, 2, &respi));


	/* req1 minus 1 byte at the end is incomplete */
	ck_assert_int_eq(0, get_http_header_len(req1, lenreq1 - 1));


	/* req1 minus 1 byte at the start is complete but invalid */
	ck_assert_int_eq(lenreq1 - 1, get_http_header_len(req1 + 1, lenreq1 - 1));
	ck_assert_int_eq(-1, test_parse_http_request(req1 + 1, lenreq1 - 1, &ri));


	/* req1 is a valid request */
	ck_assert_int_eq(lenreq1, get_http_header_len(req1, lenreq1));
	ck_assert_int_eq(-1, test_parse_http_response(req1, lenreq1, &respi));
	ck_assert_int_eq(lenreq1, test_parse_http_request(req1, lenreq1, &ri));
	ck_assert_str_eq("1.1", ri.http_version);
	ck_assert_int_eq(0, ri.num_headers);


	/* req2 is a complete, but invalid request */
	ck_assert_int_eq(lenreq2, get_http_header_len(req2, lenreq2));
	ck_assert_int_eq(-1, test_parse_http_request(req2, lenreq2, &ri));


	/* req3 is a complete and valid request */
	ck_assert_int_eq(lenreq3, get_http_header_len(req3, lenreq3));
	ck_assert_int_eq(lenreq3, test_parse_http_request(req3, lenreq3, &ri));
	ck_assert_int_eq(-1, test_parse_http_response(req3, lenreq3, &respi));


	/* Multiline header are obsolete, so return an error
	 * (https://tools.ietf.org/html/rfc7230#section-3.2.4). */
	ck_assert_int_eq(-1, test_parse_http_request(req4, lenreq4, &ri));


	/* req5 is a complete and valid request (also somewhat malformed,
	 * since it uses \n\n instead of \r\n\r\n) */
	ck_assert_int_eq(lenreq5, get_http_header_len(req5, lenreq5));
	ck_assert_int_eq(-1, test_parse_http_response(req5, lenreq5, &respi));
	ck_assert_int_eq(lenreq5, test_parse_http_request(req5, lenreq5, &ri));
	ck_assert_str_eq("GET", ri.request_method);
	ck_assert_str_eq("1.0", ri.http_version);


	/* req6 is incomplete */
	ck_assert_int_eq(0, get_http_header_len(req6, lenreq6));
	ck_assert_int_eq(0, test_parse_http_request(req6, lenreq6, &ri));


	/* req7 is invalid, but not yet complete */
	ck_assert_int_eq(0, get_http_header_len(req7, lenreq7));
	ck_assert_int_eq(0, test_parse_http_request(req7, lenreq7, &ri));


	/* req8 is a valid response */
	ck_assert_int_eq(lenreq8, get_http_header_len(req8, lenreq8));
	ck_assert_int_eq(-1, test_parse_http_request(req8, lenreq8, &ri));
	ck_assert_int_eq(lenreq8, test_parse_http_response(req8, lenreq8, &respi));


	/* req9 is a valid response */
	ck_assert_int_eq(lenreq9, get_http_header_len(req9, lenreq9));
	ck_assert_int_eq(-1, test_parse_http_request(req9, lenreq9, &ri));
	ck_assert_int_eq(lenreq9, test_parse_http_response(req9, lenreq9, &respi));
	ck_assert_int_eq(1, respi.num_headers);


	/* req10 is a valid request */
	ck_assert_int_eq(lenreq10, get_http_header_len(req10, lenreq10));
	ck_assert_int_eq(lenreq10, test_parse_http_request(req10, lenreq10, &ri));
	ck_assert_str_eq("1.1", ri.http_version);
	ck_assert_int_eq(2, ri.num_headers);
	ck_assert_str_eq("A", ri.http_headers[0].name);
	ck_assert_str_eq("foo bar", ri.http_headers[0].value);
	ck_assert_str_eq("B", ri.http_headers[1].name);
	ck_assert_str_eq("bar", ri.http_headers[1].value);


	/* req11 is a complete but valid request */
	ck_assert_int_eq(-1, test_parse_http_request(req11, lenreq11, &ri));


	/* req12 is a valid request with body data */
	ck_assert_int_gt(lenreq12, lenhdr12);
	ck_assert_int_eq(lenhdr12, get_http_header_len(req12, lenreq12));
	ck_assert_int_eq(lenhdr12, test_parse_http_request(req12, lenreq12, &ri));
}
END_TEST


START_TEST(test_should_keep_alive)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	struct mg_connection conn;
	struct mg_context ctx;
	char req1[] = "GET / HTTP/1.1\r\n\r\n";
	char req2[] = "GET / HTTP/1.0\r\n\r\n";
	char req3[] = "GET / HTTP/1.1\r\nConnection: close\r\n\r\n";
	char req4[] = "GET / HTTP/1.1\r\nConnection: keep-alive\r\n\r\n";
	char yes[] = "yes";
	char no[] = "no";

	int lenreq1 = (int)strlen(req1);
	int lenreq2 = (int)strlen(req2);
	int lenreq3 = (int)strlen(req3);
	int lenreq4 = (int)strlen(req4);

	mark_point();

	memset(&ctx, 0, sizeof(ctx));
	memset(&conn, 0, sizeof(conn));
	conn.phys_ctx = &ctx;
	conn.dom_ctx = &(ctx.dd);
	ck_assert_int_eq(test_parse_http_request(req1, lenreq1, &conn.request_info),
	                 lenreq1);
	conn.connection_type = 1; /* Valid request */
	ck_assert_int_eq(conn.request_info.num_headers, 0);

	ctx.dd.config[ENABLE_KEEP_ALIVE] = no;
	ck_assert_int_eq(should_keep_alive(&conn), 0);

	ctx.dd.config[ENABLE_KEEP_ALIVE] = yes;
	ck_assert_int_eq(should_keep_alive(&conn), 1);

	conn.must_close = 1;
	ck_assert_int_eq(should_keep_alive(&conn), 0);

	conn.must_close = 0;
	test_parse_http_request(req2, lenreq2, &conn.request_info);
	conn.connection_type = 1; /* Valid request */
	ck_assert_int_eq(conn.request_info.num_headers, 0);
	ck_assert_int_eq(should_keep_alive(&conn), 0);

	test_parse_http_request(req3, lenreq3, &conn.request_info);
	conn.connection_type = 1; /* Valid request */
	ck_assert_int_eq(conn.request_info.num_headers, 1);
	ck_assert_int_eq(should_keep_alive(&conn), 0);

	test_parse_http_request(req4, lenreq4, &conn.request_info);
	conn.connection_type = 1; /* Valid request */
	ck_assert_int_eq(conn.request_info.num_headers, 1);
	ck_assert_int_eq(should_keep_alive(&conn), 1);

	conn.status_code = 200;
	conn.must_close = 1;
	ck_assert_int_eq(should_keep_alive(&conn), 0);

	conn.status_code = 200;
	conn.must_close = 0;
	ck_assert_int_eq(should_keep_alive(&conn), 1);

	conn.status_code = 200;
	conn.must_close = 0;
	conn.connection_type = 0; /* invalid */
	ck_assert_int_eq(should_keep_alive(&conn), 0);
}
END_TEST


START_TEST(test_match_prefix)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	ck_assert_int_eq(4, match_prefix("/api", 4, "/api"));
	ck_assert_int_eq(3, match_prefix("/a/", 3, "/a/b/c"));
	ck_assert_int_eq(-1, match_prefix("/a/", 3, "/ab/c"));
	ck_assert_int_eq(4, match_prefix("/*/", 3, "/ab/c"));
	ck_assert_int_eq(6, match_prefix("**", 2, "/a/b/c"));
	ck_assert_int_eq(2, match_prefix("/*", 2, "/a/b/c"));
	ck_assert_int_eq(2, match_prefix("*/*", 3, "/a/b/c"));
	ck_assert_int_eq(5, match_prefix("**/", 3, "/a/b/c"));
	ck_assert_int_eq(5, match_prefix("**.foo|**.bar", 13, "a.bar"));
	ck_assert_int_eq(2, match_prefix("a|b|cd", 6, "cdef"));
	ck_assert_int_eq(2, match_prefix("a|b|c?", 6, "cdef"));
	ck_assert_int_eq(1, match_prefix("a|?|cd", 6, "cdef"));
	ck_assert_int_eq(-1, match_prefix("/a/**.cgi", 9, "/foo/bar/x.cgi"));
	ck_assert_int_eq(12, match_prefix("/a/**.cgi", 9, "/a/bar/x.cgi"));
	ck_assert_int_eq(5, match_prefix("**/", 3, "/a/b/c"));
	ck_assert_int_eq(-1, match_prefix("**/$", 4, "/a/b/c"));
	ck_assert_int_eq(5, match_prefix("**/$", 4, "/a/b/"));
	ck_assert_int_eq(0, match_prefix("$", 1, ""));
	ck_assert_int_eq(-1, match_prefix("$", 1, "x"));
	ck_assert_int_eq(1, match_prefix("*$", 2, "x"));
	ck_assert_int_eq(1, match_prefix("/$", 2, "/"));
	ck_assert_int_eq(-1, match_prefix("**/$", 4, "/a/b/c"));
	ck_assert_int_eq(5, match_prefix("**/$", 4, "/a/b/"));
	ck_assert_int_eq(0, match_prefix("*", 1, "/hello/"));
	ck_assert_int_eq(-1, match_prefix("**.a$|**.b$", 11, "/a/b.b/"));
	ck_assert_int_eq(6, match_prefix("**.a$|**.b$", 11, "/a/b.b"));
	ck_assert_int_eq(6, match_prefix("**.a$|**.b$", 11, "/a/B.A"));
	ck_assert_int_eq(5, match_prefix("**o$", 4, "HELLO"));
}
END_TEST


START_TEST(test_remove_dot_segments)
{
	int i;

	struct {
		const char *input;
		const char *expected_output;
	} tests[] = {
	    {"/path/to/file.ext", "/path/to/file.ext"},
	    {"/file.ext", "/file.ext"},
	    {"/path/../file.ext", "/file.ext"},
	    {"/../to/file.ext", "/to/file.ext"},
	    {"/../../file.ext", "/file.ext"},
	    {"/./../file.ext", "/file.ext"},
	    {"/.././file.ext", "/file.ext"},
	    {"/././file.ext", "/file.ext"},
	    {"/././file.ext", "/file.ext"},
	    {"/path/.to/..file.ext", "/path/.to/..file.ext"},
	    {"/file", "/file"},
	    {"/path/", "/path/"},

	    {"file.ext", "file.ext"},
	    {"./file.ext", "file.ext"},
	    {"../file.ext", "file.ext"},
	    {".file.ext", ".file.ext"},
	    {"..file.ext", "..file.ext"},
	    {"file", "file"},
	    {"/x/../", "/"},
	    {"/x/../../", "/"},
	    {"/x/.././", "/"},
	    {"/./x/.././", "/"},

	    /* Windows specific */
	    {"\\file.ext", "/file.ext"},
	    {"\\..\\file.ext", "/file.ext"},
	    {"/file.", "/file"},
	    {"/path\\to.\\.\\file.", "/path/to/file"},

	    /* Multiple dots and slashes */
	    {"\\//\\\\x", "/x"},
	    {"//", "/"},
	    {"/./", "/"},
	    {"/../", "/"},
	    {"/.../", "/"},
	    {"/..../", "/"},
	    {"/...../", "/"},
	    {"/...../", "/"},
	    {"/...//", "/"},
	    {"/..././", "/"},
	    {"/.../../", "/"},
	    {"/.../.../", "/"},

	    /* Test cases from issues */
	    {"/foo/bar/baz/../qux.txt", "/foo/bar/qux.txt"},
	    {"/../alice/bob/../carol/david/frank/../../grace.ext/hugo/../irene.jpg",
	     "/alice/carol/grace.ext/irene.jpg"},
	    {"/a/b/..", "/a/"},
	    {"/a/b/c/../d/../..", "/a/"},

	    {NULL, NULL}};

	mark_point();

	for (i = 0; (tests[i].input != NULL); i++) {
		char inout[256];
		strcpy(inout, tests[i].input);
		remove_dot_segments(inout);
		ck_assert_str_eq(inout, tests[i].expected_output);
	}
}
END_TEST


START_TEST(test_is_valid_uri)
{
	/* is_valid_uri is superseeded by get_uri_type */
	ck_assert_int_eq(2, get_uri_type("/api"));
	ck_assert_int_eq(2, get_uri_type("/api/"));
	ck_assert_int_eq(2,
	                 get_uri_type("/some/long/path%20with%20space/file.xyz"));
	ck_assert_int_eq(0, get_uri_type("api"));
	ck_assert_int_eq(1, get_uri_type("*"));
	ck_assert_int_eq(0, get_uri_type("*xy"));
	ck_assert_int_eq(3, get_uri_type("http://somewhere/"));
	ck_assert_int_eq(3, get_uri_type("https://somewhere/some/file.html"));
	ck_assert_int_eq(4, get_uri_type("http://somewhere:8080/"));
	ck_assert_int_eq(4, get_uri_type("https://somewhere:8080/some/file.html"));
}
END_TEST


START_TEST(test_next_option)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	const char *p, *list = "x/8,/y**=1;2k,z";
	struct vec a, b;
	int i;

	mark_point();

	ck_assert(next_option(NULL, &a, &b) == NULL);
	for (i = 0, p = list; (p = next_option(p, &a, &b)) != NULL; i++) {
		ck_assert(i != 0 || (a.ptr == list && a.len == 3 && b.len == 0));
		ck_assert(i != 1
		          || (a.ptr == list + 4 && a.len == 4 && b.ptr == list + 9
		              && b.len == 4));
		ck_assert(i != 2 || (a.ptr == list + 14 && a.len == 1 && b.len == 0));
	}
}
END_TEST


START_TEST(test_skip_quoted)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	char x[] = "a=1, b=2, c='hi \' there', d='here\\, there'", *s = x, *p;

	mark_point();

	p = skip_quoted(&s, ", ", ", ", 0);
	ck_assert(p != NULL && !strcmp(p, "a=1"));

	p = skip_quoted(&s, ", ", ", ", 0);
	ck_assert(p != NULL && !strcmp(p, "b=2"));

	p = skip_quoted(&s, ",", " ", 0);
	ck_assert(p != NULL && !strcmp(p, "c='hi \' there'"));

	p = skip_quoted(&s, ",", " ", '\\');
	ck_assert(p != NULL && !strcmp(p, "d='here, there'"));
	ck_assert(*s == 0);
}
END_TEST


static int
alloc_printf(char **buf, size_t size, const char *fmt, ...)
{
	/* Test helper function - adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	va_list ap;
	int ret = 0;

	mark_point();

	va_start(ap, fmt);
	ret = alloc_vprintf(buf, *buf, size, fmt, ap);
	va_end(ap);

	return ret;
}


static int
alloc_printf2(char **buf, const char *fmt, ...)
{
	/* Test alternative implementation */
	va_list ap;
	int ret = 0;

	mark_point();

	va_start(ap, fmt);
	ret = alloc_vprintf2(buf, fmt, ap);
	va_end(ap);

	return ret;
}


START_TEST(test_alloc_vprintf)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	char buf[MG_BUF_LEN], *p = buf;
	mark_point();

	ck_assert(alloc_printf(&p, sizeof(buf), "%s", "hi") == 2);
	ck_assert(p == buf);

	ck_assert(alloc_printf(&p, sizeof(buf), "%s", "") == 0);
	ck_assert(p == buf);

	ck_assert(alloc_printf(&p, sizeof(buf), "") == 0);
	ck_assert(p == buf);

	/* Pass small buffer, make sure alloc_printf allocates */
	ck_assert(alloc_printf(&p, 1, "%s", "hello") == 5);
	ck_assert(p != buf);
	mg_free(p);
	p = buf;

	/* Test alternative implementation */
	ck_assert(alloc_printf2(&p, "%s", "hello") == 5);
	ck_assert(p != buf);
	mg_free(p);
	p = buf;
}
END_TEST


START_TEST(test_mg_vsnprintf)
{
	char buf[16];
	int is_trunc;

#if defined(_WIN32)
	/* If the string is truncated, mg_snprintf calls mg_cry.
	 * If DEBUG is defined, mg_cry calls DEBUG_TRACE.
	 * In DEBUG_TRACE_FUNC, flockfile(stdout) is called.
	 * For Windows, flockfile/funlockfile calls
	 * pthread_mutex_lock/_unlock(&global_log_file_lock).
	 * So, we need to initialize global_log_file_lock:
	 */
	pthread_mutex_init(&global_log_file_lock, &pthread_mutex_attr);
#endif

	memset(buf, 0, sizeof(buf));
	mark_point();

	is_trunc = 777;
	mg_snprintf(NULL, &is_trunc, buf, 10, "%8i", 123);
	ck_assert_str_eq(buf, "     123");
	ck_assert_int_eq(is_trunc, 0);

	is_trunc = 777;
	mg_snprintf(NULL, &is_trunc, buf, 10, "%9i", 123);
	ck_assert_str_eq(buf, "      123");
	ck_assert_int_eq(is_trunc, 0);

	is_trunc = 777;
	mg_snprintf(NULL, &is_trunc, buf, 9, "%9i", 123);
	ck_assert_str_eq(buf, "      12");
	ck_assert_int_eq(is_trunc, 1);

	is_trunc = 777;
	mg_snprintf(NULL, &is_trunc, buf, 8, "%9i", 123);
	ck_assert_str_eq(buf, "      1");
	ck_assert_int_eq(is_trunc, 1);

	is_trunc = 777;
	mg_snprintf(NULL, &is_trunc, buf, 7, "%9i", 123);
	ck_assert_str_eq(buf, "      ");
	ck_assert_int_eq(is_trunc, 1);

	is_trunc = 777;
	strcpy(buf, "1234567890");
	mg_snprintf(NULL, &is_trunc, buf, 0, "%i", 543);
	ck_assert_str_eq(buf, "1234567890");
	ck_assert_int_eq(is_trunc, 1);
}
END_TEST


START_TEST(test_mg_strcasestr)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2015 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	static const char *big1 = "abcdef";
	mark_point();

	ck_assert(mg_strcasestr("Y", "X") == NULL);
	ck_assert(mg_strcasestr("Y", "y") != NULL);
	ck_assert(mg_strcasestr(big1, "X") == NULL);
	ck_assert(mg_strcasestr(big1, "CD") == big1 + 2);
	ck_assert(mg_strcasestr("aa", "AAB") == NULL);
}
END_TEST


START_TEST(test_parse_port_string)
{
	/* Adapted from unit_test.c */
	/* Copyright (c) 2013-2020 the Civetweb developers */
	/* Copyright (c) 2004-2013 Sergey Lyubka */
	struct t_test_parse_port_string {
		const char *port_string;
		int valid;
		int ip_family;
		uint16_t port_num;
	};

	static struct t_test_parse_port_string testdata[] =
	{ {"0", 1, 4, 0},
	  {"1", 1, 4, 1},
	  {"65535", 1, 4, 65535},
	  {"65536", 0, 0, 0},

	  {"1s", 1, 4, 1},
	  {"1r", 1, 4, 1},
	  {"1k", 0, 0, 0},

	  {"1.2.3", 0, 0, 0},
	  {"1.2.3.", 0, 0, 0},
	  {"1.2.3.4", 0, 0, 0},
	  {"1.2.3.4:", 0, 0, 0},

	  {"1.2.3.4:0", 1, 4, 0},
	  {"1.2.3.4:1", 1, 4, 1},
	  {"1.2.3.4:65535", 1, 4, 65535},
	  {"1.2.3.4:65536", 0, 0, 0},

	  {"1.2.3.4:1s", 1, 4, 1},
	  {"1.2.3.4:1r", 1, 4, 1},
	  {"1.2.3.4:1k", 0, 0, 0},

#if defined(USE_IPV6)
	  /* IPv6 config */
	  {"[::1]:123", 1, 6, 123},
	  {"[::]:80", 1, 6, 80},
	  {"[3ffe:2a00:100:7031::1]:900", 1, 6, 900},

	  /* IPv4 + IPv6 config */
	  {"+80", 1, 4 + 6, 80},
#else
	  /* IPv6 config: invalid if IPv6 is not activated */
	  {"[::1]:123", 0, 0, 123},
	  {"[::]:80", 0, 0, 80},
	  {"[3ffe:2a00:100:7031::1]:900", 0, 0, 900},

	  /* IPv4 + IPv6 config: only IPv4 if IPv6 is not activated */
	  {"+80", 1, 4, 80},
#endif

	  {NULL, 0, 0, 0} };

	struct socket so;
	struct vec vec;
	int ip_family;
	int i, ret;

	mark_point();

	for (i = 0; testdata[i].port_string != NULL; i++) {
		vec.ptr = testdata[i].port_string;
		vec.len = strlen(vec.ptr);

		ip_family = 123;
		ret = parse_port_string(&vec, &so, &ip_family);

		if ((ret != testdata[i].valid)
		    || (ip_family != testdata[i].ip_family)) {
			ck_abort_msg("Port string [%s]: "
			             "expected valid=%i, family=%i; "
			             "got valid=%i, family=%i",
			             testdata[i].port_string,
			             testdata[i].valid,
			             testdata[i].ip_family,
			             ret,
			             ip_family);
		}
		if (ip_family == 4) {
			ck_assert_int_eq((int)so.lsa.sin.sin_family, (int)AF_INET);
		}
		if (ip_family == 6) {
			ck_assert_int_eq((int)so.lsa.sin.sin_family, (int)AF_INET6);
		}
		if (ret) {
			/* Test valid strings only */
			ck_assert_int_eq(htons(so.lsa.sin.sin_port), testdata[i].port_num);
		}
	}

	/* special case: localhost can be ipv4 or ipv6 */
	vec.ptr = "localhost:123";
	vec.len = strlen(vec.ptr);
	ret = parse_port_string(&vec, &so, &ip_family);
	if (ret != 1) {
		ck_abort_msg("IP of localhost seems to be unknown on this system (%i)",
		             (int)ret);
	}
	if ((ip_family != 4) && (ip_family != 6)) {
		ck_abort_msg("IP family for localhost must be 4 or 6 but is %i",
		             (int)ip_family);
	}
	ck_assert_int_eq((int)htons(so.lsa.sin.sin_port), (int)123);
}
END_TEST


START_TEST(test_parse_http_headers)
{
	char buf[2048];
	char *ptr;
	int ret;
	struct mg_header hdr[MG_MAX_HEADERS];

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 0);
	ck_assert_ptr_eq(ptr, &buf[0]);
	ck_assert_ptr_eq(hdr[0].name, NULL);
	ck_assert_ptr_eq(hdr[0].value, NULL);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 0);
	ck_assert_ptr_eq(ptr, &buf[0]);
	ck_assert_ptr_eq(hdr[0].name, NULL);
	ck_assert_ptr_eq(hdr[0].value, NULL);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, -1);
	ck_assert_ptr_eq(ptr, &buf[0]);
	ck_assert_ptr_eq(hdr[0].name, NULL);
	ck_assert_ptr_eq(hdr[0].value, NULL);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a:b");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 1);
	ck_assert_ptr_eq(ptr, &buf[3]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[2]);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a:b\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 1);
	ck_assert_ptr_eq(ptr, &buf[5]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[2]);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a:b\r\n\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 1);
	ck_assert_ptr_eq(ptr, &buf[5]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[2]);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 1);
	ck_assert_ptr_eq(ptr, &buf[6]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a :b\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 1);
	ck_assert_ptr_eq(ptr, &buf[6]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a : b\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 1);
	ck_assert_ptr_eq(ptr, &buf[7]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[4]);
	ck_assert_ptr_eq(hdr[1].name, NULL);
	ck_assert_ptr_eq(hdr[1].value, NULL);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\nc: d\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 2);
	ck_assert_ptr_eq(ptr, &buf[12]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_str_eq(hdr[1].name, "c");
	ck_assert_str_eq(hdr[1].value, "d");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, &buf[6]);
	ck_assert_ptr_eq(hdr[1].value, &buf[9]);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\nc: d\r\n\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 2);
	ck_assert_ptr_eq(ptr, &buf[12]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_str_eq(hdr[1].name, "c");
	ck_assert_str_eq(hdr[1].value, "d");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, &buf[6]);
	ck_assert_ptr_eq(hdr[1].value, &buf[9]);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\nc: d\r\n\r\ne: f\r\n");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 2);
	ck_assert_ptr_eq(ptr, &buf[12]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_str_eq(hdr[1].name, "c");
	ck_assert_str_eq(hdr[1].value, "d");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, &buf[6]);
	ck_assert_ptr_eq(hdr[1].value, &buf[9]);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\nc: d");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 2);
	ck_assert_ptr_eq(ptr, &buf[10]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_str_eq(hdr[1].name, "c");
	ck_assert_str_eq(hdr[1].value, "d");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, &buf[6]);
	ck_assert_ptr_eq(hdr[1].value, &buf[9]);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\nc: d\r\ne");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, -1);
	/* The following could be undefined, since ret == -1 */
	ck_assert_ptr_eq(ptr, &buf[12]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_str_eq(hdr[1].name, "c");
	ck_assert_str_eq(hdr[1].value, "d");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, &buf[6]);
	ck_assert_ptr_eq(hdr[1].value, &buf[9]);
	ck_assert_ptr_eq(hdr[2].name, NULL);
	ck_assert_ptr_eq(hdr[2].value, NULL);

	memset(hdr, 0, sizeof(hdr));
	memset(buf, 0, sizeof(buf));
	strcpy(buf, "a: b\r\nc: d\r\nefg:");
	ptr = &buf[0];
	ret = parse_http_headers(&ptr, hdr);
	ck_assert_int_eq(ret, 3);
	ck_assert_ptr_eq(ptr, &buf[16]);
	ck_assert_str_eq(hdr[0].name, "a");
	ck_assert_str_eq(hdr[0].value, "b");
	ck_assert_str_eq(hdr[1].name, "c");
	ck_assert_str_eq(hdr[1].value, "d");
	ck_assert_str_eq(hdr[2].name, "efg");
	ck_assert_str_eq(hdr[2].value, "");
	ck_assert_ptr_eq(hdr[0].name, &buf[0]);
	ck_assert_ptr_eq(hdr[0].value, &buf[3]);
	ck_assert_ptr_eq(hdr[1].name, &buf[6]);
	ck_assert_ptr_eq(hdr[1].value, &buf[9]);
	ck_assert_ptr_eq(hdr[2].name, &buf[12]);
	ck_assert_ptr_eq(hdr[2].value, &buf[16]);
}
END_TEST


START_TEST(test_encode_decode)
{
	char buf[128];
	const char *alpha = "abcdefghijklmnopqrstuvwxyz";
	const char *nonalpha = " !\"#$%&'()*+,-./0123456789:;<=>?@";
	const char *nonalpha_url_enc1 =
	    "%20%21%22%23$%25%26%27()%2a%2b,-.%2f0123456789%3a;%3c%3d%3e%3f%40";
	const char *nonalpha_url_enc2 =
	    "%20!%22%23%24%25%26'()*%2B%2C-.%2F0123456789%3A%3B%3C%3D%3E%3F%40";
	int ret;
	size_t len;

#if defined(USE_WEBSOCKET) || defined(USE_LUA)
	const char *alpha_b64_enc = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXo=";
	const char *nonalpha_b64_enc =
	    "ICEiIyQlJicoKSorLC0uLzAxMjM0NTY3ODk6Ozw9Pj9A";

	mark_point();

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)"a", 1, buf);
	ck_assert_str_eq(buf, "YQ==");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)"ab", 1, buf);
	ck_assert_str_eq(buf, "YQ==");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)"ab", 2, buf);
	ck_assert_str_eq(buf, "YWI=");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)alpha, 3, buf);
	ck_assert_str_eq(buf, "YWJj");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)alpha, 4, buf);
	ck_assert_str_eq(buf, "YWJjZA==");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)alpha, 5, buf);
	ck_assert_str_eq(buf, "YWJjZGU=");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)alpha, 6, buf);
	ck_assert_str_eq(buf, "YWJjZGVm");

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)alpha, (int)strlen(alpha), buf);
	ck_assert_str_eq(buf, alpha_b64_enc);

	memset(buf, 77, sizeof(buf));
	base64_encode((unsigned char *)nonalpha, (int)strlen(nonalpha), buf);
	ck_assert_str_eq(buf, nonalpha_b64_enc);
#endif

#if defined(USE_LUA)
	memset(buf, 77, sizeof(buf));
	len = 9999;
	ret = base64_decode((unsigned char *)alpha_b64_enc,
	                    (int)strlen(alpha_b64_enc),
	                    buf,
	                    &len);
	ck_assert_int_eq(ret, -1);
	ck_assert_uint_eq((unsigned int)len, (unsigned int)strlen(alpha));
	ck_assert_str_eq(buf, alpha);

	memset(buf, 77, sizeof(buf));
	len = 9999;
	ret = base64_decode((unsigned char *)"AAA*AAA", 7, buf, &len);
	ck_assert_int_eq(ret, 3);
#endif

	memset(buf, 77, sizeof(buf));
	ret = mg_url_encode(alpha, buf, sizeof(buf));
	ck_assert_int_eq(ret, (int)strlen(buf));
	ck_assert_int_eq(ret, (int)strlen(alpha));
	ck_assert_str_eq(buf, alpha);

	memset(buf, 77, sizeof(buf));
	ret = mg_url_encode(nonalpha, buf, sizeof(buf));
	ck_assert_int_eq(ret, (int)strlen(buf));
	ck_assert_int_eq(ret, (int)strlen(nonalpha_url_enc1));
	ck_assert_str_eq(buf, nonalpha_url_enc1);

	memset(buf, 77, sizeof(buf));
	ret = mg_url_decode(alpha, (int)strlen(alpha), buf, sizeof(buf), 0);
	ck_assert_int_eq(ret, (int)strlen(buf));
	ck_assert_int_eq(ret, (int)strlen(alpha));
	ck_assert_str_eq(buf, alpha);

	memset(buf, 77, sizeof(buf));
	ret = mg_url_decode(
	    nonalpha_url_enc1, (int)strlen(nonalpha_url_enc1), buf, sizeof(buf), 0);
	ck_assert_int_eq(ret, (int)strlen(buf));
	ck_assert_int_eq(ret, (int)strlen(nonalpha));
	ck_assert_str_eq(buf, nonalpha);

	memset(buf, 77, sizeof(buf));
	ret = mg_url_decode(
	    nonalpha_url_enc2, (int)strlen(nonalpha_url_enc2), buf, sizeof(buf), 0);
	ck_assert_int_eq(ret, (int)strlen(buf));
	ck_assert_int_eq(ret, (int)strlen(nonalpha));
	ck_assert_str_eq(buf, nonalpha);

	/* Test url_decode_in_place */
	strcpy(buf, "AbcDef");
	url_decode_in_place(buf);
	ck_assert_str_eq(buf, "AbcDef");

	strcpy(buf, "A%20B+C");
	url_decode_in_place(buf);
	ck_assert_str_eq(buf, "A B C");

	/* len could be unused, if base64_decode is not tested because USE_LUA is
	 * not defined */
	(void)len;
}
END_TEST


START_TEST(test_mask_data)
{
#if defined(USE_WEBSOCKET)
	char in[1024];
	char out[1024];
	int i;
#endif

	uint32_t mask = 0x61626364;
	/* TODO: adapt test for big endian */
	ck_assert((*(unsigned char *)&mask) == 0x64u);

#if defined(USE_WEBSOCKET)
	memset(in, 0, sizeof(in));
	memset(out, 99, sizeof(out));

	mask_data(in, sizeof(out), 0, out);
	ck_assert(!memcmp(out, in, sizeof(out)));

	for (i = 0; i < 1024; i++) {
		in[i] = (char)((unsigned char)i);
	}
	mask_data(in, 107, 0, out);
	ck_assert(!memcmp(out, in, 107));

	mask_data(in, 256, 0x01010101, out);
	for (i = 0; i < 256; i++) {
		ck_assert_int_eq((int)((unsigned char)out[i]),
		                 (int)(((unsigned char)in[i]) ^ (char)1u));
	}
	for (i = 256; i < (int)sizeof(out); i++) {
		ck_assert_int_eq((int)((unsigned char)out[i]), (int)0);
	}

	/* TODO: check this for big endian */
	mask_data(in, 5, 0x01020304, out);
	ck_assert_uint_eq((unsigned char)out[0], 0u ^ 4u);
	ck_assert_uint_eq((unsigned char)out[1], 1u ^ 3u);
	ck_assert_uint_eq((unsigned char)out[2], 2u ^ 2u);
	ck_assert_uint_eq((unsigned char)out[3], 3u ^ 1u);
	ck_assert_uint_eq((unsigned char)out[4], 4u ^ 4u);
#endif
}
END_TEST


START_TEST(test_parse_date_string)
{
#if !defined(NO_CACHING)
	time_t now = time(0);
	struct tm *tm = gmtime(&now);
	char date[64] = {0};
	unsigned long i;

	ck_assert_uint_eq((unsigned long)parse_date_string("1/Jan/1970 00:01:02"),
	                  62ul);
	ck_assert_uint_eq((unsigned long)parse_date_string("1 Jan 1970 00:02:03"),
	                  123ul);
	ck_assert_uint_eq((unsigned long)parse_date_string("1-Jan-1970 00:03:04"),
	                  184ul);
	ck_assert_uint_eq((unsigned long)parse_date_string(
	                      "Xyz, 1 Jan 1970 00:04:05"),
	                  245ul);

	gmt_time_string(date, sizeof(date), &now);
	ck_assert_uint_eq((uintmax_t)parse_date_string(date), (uintmax_t)now);

	sprintf(date,
	        "%02u %s %04u %02u:%02u:%02u",
	        (unsigned int)tm->tm_mday,
	        month_names[tm->tm_mon],
	        (unsigned int)(tm->tm_year + 1900),
	        (unsigned int)tm->tm_hour,
	        (unsigned int)tm->tm_min,
	        (unsigned int)tm->tm_sec);
	ck_assert_uint_eq((uintmax_t)parse_date_string(date), (uintmax_t)now);

	gmt_time_string(date, 1, NULL);
	ck_assert_str_eq(date, "");
	gmt_time_string(date, 6, NULL);
	ck_assert_str_eq(date,
	                 "Thu, "); /* part of "Thu, 01 Jan 1970 00:00:00 GMT" */
	gmt_time_string(date, sizeof(date), NULL);
	ck_assert_str_eq(date, "Thu, 01 Jan 1970 00:00:00 GMT");

	for (i = 2ul; i < 0x8000000ul; i += i / 2) {
		now = (time_t)i;

		gmt_time_string(date, sizeof(date), &now);
		ck_assert_uint_eq((uintmax_t)parse_date_string(date), (uintmax_t)now);

		tm = gmtime(&now);
		sprintf(date,
		        "%02u-%s-%04u %02u:%02u:%02u",
		        (unsigned int)tm->tm_mday,
		        month_names[tm->tm_mon],
		        (unsigned int)(tm->tm_year + 1900),
		        (unsigned int)tm->tm_hour,
		        (unsigned int)tm->tm_min,
		        (unsigned int)tm->tm_sec);
		ck_assert_uint_eq((uintmax_t)parse_date_string(date), (uintmax_t)now);
	}
#endif
}
END_TEST


START_TEST(test_sha1)
{
#ifdef SHA1_DIGEST_SIZE
	SHA_CTX sha_ctx;
	uint8_t digest[SHA1_DIGEST_SIZE] = {0};
	char str[48] = {0};
	int i;
	const char *test_str;

	ck_assert_uint_eq(sizeof(digest), 20);
	ck_assert_uint_gt(sizeof(str), sizeof(digest) * 2 + 1);

	/* empty string */
	SHA1_Init(&sha_ctx);
	SHA1_Final(digest, &sha_ctx);
	bin2str(str, digest, sizeof(digest));
	ck_assert_uint_eq(strlen(str), 40);
	ck_assert_str_eq(str, "da39a3ee5e6b4b0d3255bfef95601890afd80709");

	/* empty string */
	SHA1_Init(&sha_ctx);
	SHA1_Update(&sha_ctx, (uint8_t *)"abc", 0);
	SHA1_Final(digest, &sha_ctx);
	bin2str(str, digest, sizeof(digest));
	ck_assert_uint_eq(strlen(str), 40);
	ck_assert_str_eq(str, "da39a3ee5e6b4b0d3255bfef95601890afd80709");

	/* "abc" */
	SHA1_Init(&sha_ctx);
	SHA1_Update(&sha_ctx, (uint8_t *)"abc", 3);
	SHA1_Final(digest, &sha_ctx);
	bin2str(str, digest, sizeof(digest));
	ck_assert_uint_eq(strlen(str), 40);
	ck_assert_str_eq(str, "a9993e364706816aba3e25717850c26c9cd0d89d");

	/* "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" */
	test_str = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
	SHA1_Init(&sha_ctx);
	SHA1_Update(&sha_ctx, (uint8_t *)test_str, (uint32_t)strlen(test_str));
	SHA1_Final(digest, &sha_ctx);
	bin2str(str, digest, sizeof(digest));
	ck_assert_uint_eq(strlen(str), 40);
	ck_assert_str_eq(str, "84983e441c3bd26ebaae4aa1f95129e5e54670f1");

	/* a million "a" */
	SHA1_Init(&sha_ctx);
	for (i = 0; i < 1000000; i++) {
		SHA1_Update(&sha_ctx, (uint8_t *)"a", 1);
	}
	SHA1_Final(digest, &sha_ctx);
	bin2str(str, digest, sizeof(digest));
	ck_assert_uint_eq(strlen(str), 40);
	ck_assert_str_eq(str, "34aa973cd4c4daa4f61eeb2bdbad27316534016f");

	/* a million "a" in blocks of 10 */
	SHA1_Init(&sha_ctx);
	for (i = 0; i < 100000; i++) {
		SHA1_Update(&sha_ctx, (uint8_t *)"aaaaaaaaaa", 10);
	}
	SHA1_Final(digest, &sha_ctx);
	bin2str(str, digest, sizeof(digest));
	ck_assert_uint_eq(strlen(str), 40);
	ck_assert_str_eq(str, "34aa973cd4c4daa4f61eeb2bdbad27316534016f");
#else
	/* Can not test, if SHA1 is not included */
	ck_assert(1);
#endif
}
END_TEST


START_TEST(test_config_options)
{
	/* Check size of config_options vs. number of options in enum. */
	ck_assert_ptr_eq(NULL, config_options[NUM_OPTIONS].name);
	ck_assert_int_eq((int)MG_CONFIG_TYPE_UNKNOWN,
	                 config_options[NUM_OPTIONS].type);
	ck_assert_uint_eq(sizeof(config_options) / sizeof(config_options[0]),
	                  (size_t)(NUM_OPTIONS + 1));

	/* Check option enums vs. option names. */
	/* Check if the order in
	 * static struct mg_option config_options[]
	 * is the same as in the option enum
	 * This test allows to reorder config_options and the enum,
	 * and check if the order is still consistent. */
	ck_assert_str_eq("cgi_pattern", config_options[CGI_EXTENSIONS].name);
	ck_assert_str_eq("cgi_environment", config_options[CGI_ENVIRONMENT].name);
	ck_assert_str_eq("put_delete_auth_file",
	                 config_options[PUT_DELETE_PASSWORDS_FILE].name);
	ck_assert_str_eq("cgi_interpreter", config_options[CGI_INTERPRETER].name);
	ck_assert_str_eq("protect_uri", config_options[PROTECT_URI].name);
	ck_assert_str_eq("authentication_domain",
	                 config_options[AUTHENTICATION_DOMAIN].name);
	ck_assert_str_eq("enable_auth_domain_check",
	                 config_options[ENABLE_AUTH_DOMAIN_CHECK].name);
	ck_assert_str_eq("ssi_pattern", config_options[SSI_EXTENSIONS].name);
	ck_assert_str_eq("throttle", config_options[THROTTLE].name);
	ck_assert_str_eq("access_log_file", config_options[ACCESS_LOG_FILE].name);
	ck_assert_str_eq("enable_directory_listing",
	                 config_options[ENABLE_DIRECTORY_LISTING].name);
	ck_assert_str_eq("error_log_file", config_options[ERROR_LOG_FILE].name);
	ck_assert_str_eq("global_auth_file",
	                 config_options[GLOBAL_PASSWORDS_FILE].name);
	ck_assert_str_eq("index_files", config_options[INDEX_FILES].name);
	ck_assert_str_eq("enable_keep_alive",
	                 config_options[ENABLE_KEEP_ALIVE].name);
	ck_assert_str_eq("access_control_list",
	                 config_options[ACCESS_CONTROL_LIST].name);
	ck_assert_str_eq("extra_mime_types", config_options[EXTRA_MIME_TYPES].name);
	ck_assert_str_eq("listening_ports", config_options[LISTENING_PORTS].name);
	ck_assert_str_eq("document_root", config_options[DOCUMENT_ROOT].name);
	ck_assert_str_eq("ssl_certificate", config_options[SSL_CERTIFICATE].name);
	ck_assert_str_eq("ssl_certificate_chain",
	                 config_options[SSL_CERTIFICATE_CHAIN].name);
	ck_assert_str_eq("num_threads", config_options[NUM_THREADS].name);
	ck_assert_str_eq("run_as_user", config_options[RUN_AS_USER].name);
	ck_assert_str_eq("url_rewrite_patterns",
	                 config_options[URL_REWRITE_PATTERN].name);
	ck_assert_str_eq("hide_files_patterns", config_options[HIDE_FILES].name);
	ck_assert_str_eq("request_timeout_ms",
	                 config_options[REQUEST_TIMEOUT].name);
	ck_assert_str_eq("keep_alive_timeout_ms",
	                 config_options[KEEP_ALIVE_TIMEOUT].name);
	ck_assert_str_eq("linger_timeout_ms", config_options[LINGER_TIMEOUT].name);
	ck_assert_str_eq("listen_backlog",
	                 config_options[LISTEN_BACKLOG_SIZE].name);
	ck_assert_str_eq("ssl_verify_peer",
	                 config_options[SSL_DO_VERIFY_PEER].name);
	ck_assert_str_eq("ssl_ca_path", config_options[SSL_CA_PATH].name);
	ck_assert_str_eq("ssl_ca_file", config_options[SSL_CA_FILE].name);
	ck_assert_str_eq("ssl_verify_depth", config_options[SSL_VERIFY_DEPTH].name);
	ck_assert_str_eq("ssl_default_verify_paths",
	                 config_options[SSL_DEFAULT_VERIFY_PATHS].name);
	ck_assert_str_eq("ssl_cipher_list", config_options[SSL_CIPHER_LIST].name);
	ck_assert_str_eq("ssl_protocol_version",
	                 config_options[SSL_PROTOCOL_VERSION].name);
	ck_assert_str_eq("ssl_short_trust", config_options[SSL_SHORT_TRUST].name);

#if defined(USE_WEBSOCKET)
	ck_assert_str_eq("websocket_timeout_ms",
	                 config_options[WEBSOCKET_TIMEOUT].name);
	ck_assert_str_eq("enable_websocket_ping_pong",
	                 config_options[ENABLE_WEBSOCKET_PING_PONG].name);
#endif

	ck_assert_str_eq("decode_url", config_options[DECODE_URL].name);
	ck_assert_str_eq("decode_query_string",
	                 config_options[DECODE_QUERY_STRING].name);

#if defined(USE_LUA)
	ck_assert_str_eq("lua_preload_file", config_options[LUA_PRELOAD_FILE].name);
	ck_assert_str_eq("lua_script_pattern",
	                 config_options[LUA_SCRIPT_EXTENSIONS].name);
	ck_assert_str_eq("lua_server_page_pattern",
	                 config_options[LUA_SERVER_PAGE_EXTENSIONS].name);
#endif
#if defined(USE_DUKTAPE)
	ck_assert_str_eq("duktape_script_pattern",
	                 config_options[DUKTAPE_SCRIPT_EXTENSIONS].name);
#endif
#if defined(USE_WEBSOCKET)
	ck_assert_str_eq("websocket_root", config_options[WEBSOCKET_ROOT].name);
#endif
#if defined(USE_LUA) && defined(USE_WEBSOCKET)
	ck_assert_str_eq("lua_websocket_pattern",
	                 config_options[LUA_WEBSOCKET_EXTENSIONS].name);
#endif

	ck_assert_str_eq("access_control_allow_origin",
	                 config_options[ACCESS_CONTROL_ALLOW_ORIGIN].name);
	ck_assert_str_eq("access_control_allow_methods",
	                 config_options[ACCESS_CONTROL_ALLOW_METHODS].name);
	ck_assert_str_eq("access_control_allow_headers",
	                 config_options[ACCESS_CONTROL_ALLOW_HEADERS].name);
	ck_assert_str_eq("error_pages", config_options[ERROR_PAGES].name);
	ck_assert_str_eq("tcp_nodelay", config_options[CONFIG_TCP_NODELAY].name);


#if !defined(NO_CACHING)
	ck_assert_str_eq("static_file_max_age",
	                 config_options[STATIC_FILE_MAX_AGE].name);
#endif
#if !defined(NO_SSL)
	ck_assert_str_eq("strict_transport_security_max_age",
	                 config_options[STRICT_HTTPS_MAX_AGE].name);
#endif
#if defined(__linux__)
	ck_assert_str_eq("allow_sendfile_call",
	                 config_options[ALLOW_SENDFILE_CALL].name);
#endif
#if defined(_WIN32)
	ck_assert_str_eq("case_sensitive",
	                 config_options[CASE_SENSITIVE_FILES].name);
#endif
#if defined(USE_LUA)
	ck_assert_str_eq("lua_background_script",
	                 config_options[LUA_BACKGROUND_SCRIPT].name);
	ck_assert_str_eq("lua_background_script_params",
	                 config_options[LUA_BACKGROUND_SCRIPT_PARAMS].name);
#endif

	ck_assert_str_eq("additional_header",
	                 config_options[ADDITIONAL_HEADER].name);
	ck_assert_str_eq("max_request_size", config_options[MAX_REQUEST_SIZE].name);
	ck_assert_str_eq("allow_index_script_resource",
	                 config_options[ALLOW_INDEX_SCRIPT_SUB_RES].name);
}
END_TEST


#if !defined(REPLACE_CHECK_FOR_LOCAL_DEBUGGING)
Suite *
make_private_suite(void)
{
	Suite *const suite = suite_create("Private");

	TCase *const tcase_http_message = tcase_create("HTTP Message");
	TCase *const tcase_http_keep_alive = tcase_create("HTTP Keep Alive");
	TCase *const tcase_url_parsing_1 = tcase_create("URL Parsing 1");
	TCase *const tcase_url_parsing_2 = tcase_create("URL Parsing 2");
	TCase *const tcase_url_parsing_3 = tcase_create("URL Parsing 3");
	TCase *const tcase_internal_parse_1 = tcase_create("Internal Parsing 1");
	TCase *const tcase_internal_parse_2 = tcase_create("Internal Parsing 2");
	TCase *const tcase_internal_parse_3 = tcase_create("Internal Parsing 3");
	TCase *const tcase_internal_parse_4 = tcase_create("Internal Parsing 4");
	TCase *const tcase_internal_parse_5 = tcase_create("Internal Parsing 5");
	TCase *const tcase_internal_parse_6 = tcase_create("Internal Parsing 6");
	TCase *const tcase_internal_parse_7 = tcase_create("Internal Parsing 7");
	TCase *const tcase_encode_decode = tcase_create("Encode Decode");
	TCase *const tcase_mask_data = tcase_create("Mask Data");
	TCase *const tcase_parse_date_string = tcase_create("Date Parsing");
	TCase *const tcase_sha1 = tcase_create("SHA1");
	TCase *const tcase_config_options = tcase_create("Config Options");

	tcase_add_test(tcase_http_message, test_parse_http_message);
	tcase_set_timeout(tcase_http_message, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_http_message);

	tcase_add_test(tcase_http_keep_alive, test_should_keep_alive);
	tcase_set_timeout(tcase_http_keep_alive, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_http_keep_alive);

	tcase_add_test(tcase_url_parsing_1, test_match_prefix);
	tcase_set_timeout(tcase_url_parsing_1, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_url_parsing_1);

	tcase_add_test(tcase_url_parsing_2, test_remove_dot_segments);
	tcase_set_timeout(tcase_url_parsing_2, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_url_parsing_2);

	tcase_add_test(tcase_url_parsing_3, test_is_valid_uri);
	tcase_set_timeout(tcase_url_parsing_3, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_url_parsing_3);

	tcase_add_test(tcase_internal_parse_1, test_next_option);
	tcase_set_timeout(tcase_internal_parse_1, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_1);

	tcase_add_test(tcase_internal_parse_2, test_skip_quoted);
	tcase_set_timeout(tcase_internal_parse_2, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_2);

	tcase_add_test(tcase_internal_parse_3, test_mg_strcasestr);
	tcase_set_timeout(tcase_internal_parse_3, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_3);

	tcase_add_test(tcase_internal_parse_4, test_alloc_vprintf);
	tcase_set_timeout(tcase_internal_parse_4, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_4);

	tcase_add_test(tcase_internal_parse_5, test_mg_vsnprintf);
	tcase_set_timeout(tcase_internal_parse_5, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_5);

	tcase_add_test(tcase_internal_parse_6, test_parse_port_string);
	tcase_set_timeout(tcase_internal_parse_6, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_6);

	tcase_add_test(tcase_internal_parse_7, test_parse_http_headers);
	tcase_set_timeout(tcase_internal_parse_7, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_internal_parse_7);

	tcase_add_test(tcase_encode_decode, test_encode_decode);
	tcase_set_timeout(tcase_encode_decode, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_encode_decode);

	tcase_add_test(tcase_mask_data, test_mask_data);
	tcase_set_timeout(tcase_mask_data, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_mask_data);

	tcase_add_test(tcase_parse_date_string, test_parse_date_string);
	tcase_set_timeout(tcase_parse_date_string, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_parse_date_string);

	tcase_add_test(tcase_sha1, test_sha1);
	tcase_set_timeout(tcase_sha1, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_sha1);

	tcase_add_test(tcase_config_options, test_config_options);
	tcase_set_timeout(tcase_config_options, civetweb_min_test_timeout);
	suite_add_tcase(suite, tcase_config_options);

	return suite;
}
#endif


#ifdef REPLACE_CHECK_FOR_LOCAL_DEBUGGING
/* Used to debug test cases without using the check framework */

void
MAIN_PRIVATE(void)
{
#if defined(_WIN32)
	/* test_parse_port_string requires WSAStartup for IPv6 */
	WSADATA data;
	WSAStartup(MAKEWORD(2, 2), &data);
#endif

	test_alloc_vprintf(0);
	test_mg_vsnprintf(0);
	test_remove_dot_segments(0);
	test_parse_date_string(0);
	test_parse_port_string(0);
	test_parse_http_message(0);
	test_parse_http_headers(0);
	test_sha1(0);

#if defined(_WIN32)
	WSACleanup();
#endif
}

#endif