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/*
* "$Id: testhuffman.c 11992 2014-07-03 13:54:10Z msweet $"
*
* HTTP/2 Huffman compression/decompression unit tests for CUPS.
*
* Copyright 2014 by Apple Inc.
*
* These coded instructions, statements, and computer programs are the
* property of Apple Inc. and are protected by Federal copyright
* law. Distribution and use rights are outlined in the file "LICENSE.txt"
* which should have been included with this file. If this file is
* file is missing or damaged, see the license at "http://www.cups.org/".
*
* This file is subject to the Apple OS-Developed Software exception.
*/
/*
* Include necessary headers...
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "http.h"
#include "huffman-private.h"
/*
* Test data (from HPACK-08)...
*/
typedef struct _http2_huffman_test_s
{
const char *s; /* Literal string */
unsigned char h[256]; /* Huffman string */
size_t hlen; /* Length of Huffman string */
} _http2_huffman_test_t;
static const _http2_huffman_test_t test_data[] =
{
{ "www.example.com", { 0xf1, 0xe3, 0xc2, 0xe5, 0xf2, 0x3a, 0x6b, 0xa0, 0xab, 0x90, 0xf4, 0xff }, 12 },
{ "no-cache", { 0xa8, 0xeb, 0x10, 0x64, 0x9c, 0xbf }, 6 },
{ "custom-key", { 0x25, 0xa8, 0x49, 0xe9, 0x5b, 0xa9, 0x7d, 0x7f }, 8 },
{ "custom-value", { 0x25, 0xa8, 0x49, 0xe9, 0x5b, 0xb8, 0xe8, 0xb4, 0xbf }, 9 },
{ "302", { 0x64, 0x02 }, 2 },
{ "private", { 0xae, 0xc3, 0x77, 0x1a, 0x4b }, 5 },
{ "Mon, 21 Oct 2013 20:13:21 GMT", { 0xd0, 0x7a, 0xbe, 0x94, 0x10, 0x54, 0xd4, 0x44, 0xa8, 0x20, 0x05, 0x95, 0x04, 0x0b, 0x81, 0x66, 0xe0, 0x82, 0xa6, 0x2d, 0x1b, 0xff }, 22 },
{ "https://www.example.com", { 0x9d, 0x29, 0xad, 0x17, 0x18, 0x63, 0xc7, 0x8f, 0x0b, 0x97, 0xc8, 0xe9, 0xae, 0x82, 0xae, 0x43, 0xd3 }, 17 },
{ "Mon, 21 Oct 2013 20:13:22 GMT", { 0xd0, 0x7a, 0xbe, 0x94, 0x10, 0x54, 0xd4, 0x44, 0xa8, 0x20, 0x05, 0x95, 0x04, 0x0b, 0x81, 0x66, 0xe0, 0x84, 0xa6, 0x2d, 0x1b, 0xff }, 22 },
{ "gzip", { 0x9b, 0xd9, 0xab }, 3 },
{ "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1", { 0x94, 0xe7, 0x82, 0x1d, 0xd7, 0xf2, 0xe6, 0xc7, 0xb3, 0x35, 0xdf, 0xdf, 0xcd, 0x5b, 0x39, 0x60, 0xd5, 0xaf, 0x27, 0x08, 0x7f, 0x36, 0x72, 0xc1, 0xab, 0x27, 0x0f, 0xb5, 0x29, 0x1f, 0x95, 0x87, 0x31, 0x60, 0x65, 0xc0, 0x03, 0xed, 0x4e, 0xe5, 0xb1, 0x06, 0x3d, 0x50, 0x07 }, 45 }
};
/*
* Local functions...
*/
static void printhex(const unsigned char *data, size_t len);
/*
* 'main()' - Run HTTP/2 Huffman tests.
*/
int /* O - Exit status */
main(void)
{
int i, /* Looping var */
status = 0; /* Status of test */
char s[131072]; /* Literal string */
size_t slen; /* Length of literal string */
unsigned char huffdata[131072]; /* Huffman encoded data */
size_t hufflen; /* Length of Huffman encoded data */
unsigned char data[65536]; /* Test data to simulate Kerberos nonsense */
char base64[131072];
/* Base64 representation of data + "Negotiate " */
time_t start, end; /* Timing information for benchmarks */
/*
* Test examples from HPACK-08...
*/
for (i = 0; i < (int)(sizeof(test_data) / sizeof(test_data[0])); i ++)
{
printf("_http2HuffmanEncode(\"%s\"): ", test_data[i].s);
fflush(stdout);
hufflen = _http2HuffmanEncode(huffdata, sizeof(huffdata), test_data[i].s);
if (hufflen != test_data[i].hlen || memcmp(huffdata, test_data[i].h, hufflen))
{
puts("FAIL");
status = 1;
printf(" Got %d bytes: ", (int)hufflen);
printhex(huffdata, hufflen);
printf(" Expected %d bytes: ", (int)test_data[i].hlen);
printhex(test_data[i].h, test_data[i].hlen);
}
else
puts("PASS");
printf("_http2HuffmanDecode(\"%s\"): ", test_data[i].s);
fflush(stdout);
slen = _http2HuffmanDecode(s, sizeof(s), test_data[i].h, test_data[i].hlen);
if (slen != strlen(test_data[i].s) || strcmp(s, test_data[i].s))
{
puts("FAIL");
status = 1;
if (!slen)
slen = strlen(s);
printf(" Got %d bytes: %s\n", (int)slen, s);
}
else
puts("PASS");
}
/*
* Test random 64k blob representing a worst-case Kerberos ticket...
*/
CUPS_SRAND(time(NULL));
for (i = 0; i < (int)sizeof(data); i ++)
data[i] = i/* (unsigned char)CUPS_RAND() */;
strlcpy(base64, "Negotiate ", sizeof(base64));
httpEncode64_2(base64 + 10, sizeof(base64) - 10, (char *)data, sizeof(data));
fputs("_http2HuffmanEncode(kerberos ticket): ", stdout);
fflush(stdout);
hufflen = _http2HuffmanEncode(huffdata, sizeof(huffdata), base64);
slen = strlen(base64);
printf("PASS (%d bytes, %d%% of original %d bytes)\n", (int)hufflen, (int)(100 * hufflen / slen), (int)slen);
fputs("_http2HuffmanDecode(kerberos ticket): ", stdout);
fflush(stdout);
slen = _http2HuffmanDecode(s, sizeof(s), huffdata, hufflen);
if (slen != strlen(base64) || strcmp(s, base64))
{
const char *sptr, *bptr;
puts("FAIL");
status = 1;
for (sptr = s, bptr = base64; *sptr && *bptr; sptr ++, bptr ++)
if (*sptr != *bptr)
break;
if (!slen)
slen = strlen(s);
printf(" Got %d bytes, expected %d bytes\n", (int)slen, (int)strlen(base64));
printf(" Difference starting at offset %d: %s\n", (int)(sptr - s), sptr);
printf(" Expected: %s\n", bptr);
}
else
puts("PASS");
puts("\nBenchmarks:\n");
#define TESTENCODE 25000
time(&start);
for (i = 0; i < TESTENCODE; i ++)
hufflen = _http2HuffmanEncode(huffdata, sizeof(huffdata), base64);
time(&end);
slen = strlen(base64);
printf(" _http2HuffmanEncode: %.1f MB/second\n", (double)slen * TESTENCODE / (end - start) / 1024 / 1024);
#define TESTDECODE 2500
time(&start);
for (i = 0; i < TESTDECODE; i ++)
_http2HuffmanDecode(s, sizeof(s), huffdata, hufflen);
time(&end);
printf(" _http2HuffmanDecode: %.1f MB/second\n", (double)hufflen * TESTDECODE / (end - start) / 1024 / 1024);
return (status);
}
/*
* 'printhex()' - Print a string as hex characters.
*/
static void
printhex(const unsigned char *data, /* I - String */
size_t len) /* I - Length */
{
while (len > 0)
{
printf("%02X", *data & 255);
data ++;
len --;
}
putchar('\n');
}
/*
* End of "$Id: testhuffman.c 11992 2014-07-03 13:54:10Z msweet $".
*/
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