#include "php.h"
#include "md5.h"
PHPAPI void make_digest(char *md5str, unsigned char *digest)
{
make_digest_ex(md5str, digest, 16);
}
PHPAPI void make_digest_ex(char *md5str, unsigned char *digest, int len)
{
static const char hexits[17] = "0123456789abcdef";
int i;
for (i = 0; i < len; i++) {
md5str[i * 2] = hexits[digest[i] >> 4];
md5str[(i * 2) + 1] = hexits[digest[i] & 0x0F];
}
md5str[len * 2] = '\0';
}
PHP_NAMED_FUNCTION(php_if_md5)
{
char *arg;
int arg_len;
zend_bool raw_output = 0;
char md5str[33];
PHP_MD5_CTX context;
unsigned char digest[16];
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
return;
}
md5str[0] = '\0';
PHP_MD5Init(&context);
PHP_MD5Update(&context, arg, arg_len);
PHP_MD5Final(digest, &context);
if (raw_output) {
RETURN_STRINGL(digest, 16, 1);
} else {
make_digest_ex(md5str, digest, 16);
RETVAL_STRING(md5str, 1);
}
}
PHP_NAMED_FUNCTION(php_if_md5_file)
{
char *arg;
int arg_len;
zend_bool raw_output = 0;
char md5str[33];
unsigned char buf[1024];
unsigned char digest[16];
PHP_MD5_CTX context;
int n;
php_stream *stream;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
return;
}
stream = php_stream_open_wrapper(arg, "rb", REPORT_ERRORS | ENFORCE_SAFE_MODE, NULL);
if (!stream) {
RETURN_FALSE;
}
PHP_MD5Init(&context);
while ((n = php_stream_read(stream, buf, sizeof(buf))) > 0) {
PHP_MD5Update(&context, buf, n);
}
PHP_MD5Final(digest, &context);
php_stream_close(stream);
if (n<0) {
RETURN_FALSE;
}
if (raw_output) {
RETURN_STRINGL(digest, 16, 1);
} else {
make_digest_ex(md5str, digest, 16);
RETVAL_STRING(md5str, 1);
}
}
#define S11 7
#define S12 12
#define S13 17
#define S14 22
#define S21 5
#define S22 9
#define S23 14
#define S24 20
#define S31 4
#define S32 11
#define S33 16
#define S34 23
#define S41 6
#define S42 10
#define S43 15
#define S44 21
static void MD5Transform(php_uint32[4], const unsigned char[64]);
static void Encode(unsigned char *, php_uint32 *, unsigned int);
static void Decode(php_uint32 *, const unsigned char *, unsigned int);
static unsigned char PADDING[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
#define I(x, y, z) ((y) ^ ((x) | (~z)))
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
#define FF(a, b, c, d, x, s, ac) { \
(a) += F ((b), (c), (d)) + (x) + (php_uint32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define GG(a, b, c, d, x, s, ac) { \
(a) += G ((b), (c), (d)) + (x) + (php_uint32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define HH(a, b, c, d, x, s, ac) { \
(a) += H ((b), (c), (d)) + (x) + (php_uint32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define II(a, b, c, d, x, s, ac) { \
(a) += I ((b), (c), (d)) + (x) + (php_uint32)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
PHPAPI void PHP_MD5Init(PHP_MD5_CTX * context)
{
context->count[0] = context->count[1] = 0;
context->state[0] = 0x67452301;
context->state[1] = 0xefcdab89;
context->state[2] = 0x98badcfe;
context->state[3] = 0x10325476;
}
PHPAPI void PHP_MD5Update(PHP_MD5_CTX * context, const unsigned char *input,
unsigned int inputLen)
{
unsigned int i, index, partLen;
index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
if ((context->count[0] += ((php_uint32) inputLen << 3))
< ((php_uint32) inputLen << 3))
context->count[1]++;
context->count[1] += ((php_uint32) inputLen >> 29);
partLen = 64 - index;
if (inputLen >= partLen) {
memcpy
((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
MD5Transform(context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64)
MD5Transform(context->state, &input[i]);
index = 0;
} else
i = 0;
memcpy
((unsigned char*) & context->buffer[index], (unsigned char*) & input[i],
inputLen - i);
}
PHPAPI void PHP_MD5Final(unsigned char digest[16], PHP_MD5_CTX * context)
{
unsigned char bits[8];
unsigned int index, padLen;
Encode(bits, context->count, 8);
index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
PHP_MD5Update(context, PADDING, padLen);
PHP_MD5Update(context, bits, 8);
Encode(digest, context->state, 16);
memset((unsigned char*) context, 0, sizeof(*context));
}
static void MD5Transform(state, block)
php_uint32 state[4];
const unsigned char block[64];
{
php_uint32 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
Decode(x, block, 64);
FF(a, b, c, d, x[0], S11, 0xd76aa478);
FF(d, a, b, c, x[1], S12, 0xe8c7b756);
FF(c, d, a, b, x[2], S13, 0x242070db);
FF(b, c, d, a, x[3], S14, 0xc1bdceee);
FF(a, b, c, d, x[4], S11, 0xf57c0faf);
FF(d, a, b, c, x[5], S12, 0x4787c62a);
FF(c, d, a, b, x[6], S13, 0xa8304613);
FF(b, c, d, a, x[7], S14, 0xfd469501);
FF(a, b, c, d, x[8], S11, 0x698098d8);
FF(d, a, b, c, x[9], S12, 0x8b44f7af);
FF(c, d, a, b, x[10], S13, 0xffff5bb1);
FF(b, c, d, a, x[11], S14, 0x895cd7be);
FF(a, b, c, d, x[12], S11, 0x6b901122);
FF(d, a, b, c, x[13], S12, 0xfd987193);
FF(c, d, a, b, x[14], S13, 0xa679438e);
FF(b, c, d, a, x[15], S14, 0x49b40821);
GG(a, b, c, d, x[1], S21, 0xf61e2562);
GG(d, a, b, c, x[6], S22, 0xc040b340);
GG(c, d, a, b, x[11], S23, 0x265e5a51);
GG(b, c, d, a, x[0], S24, 0xe9b6c7aa);
GG(a, b, c, d, x[5], S21, 0xd62f105d);
GG(d, a, b, c, x[10], S22, 0x2441453);
GG(c, d, a, b, x[15], S23, 0xd8a1e681);
GG(b, c, d, a, x[4], S24, 0xe7d3fbc8);
GG(a, b, c, d, x[9], S21, 0x21e1cde6);
GG(d, a, b, c, x[14], S22, 0xc33707d6);
GG(c, d, a, b, x[3], S23, 0xf4d50d87);
GG(b, c, d, a, x[8], S24, 0x455a14ed);
GG(a, b, c, d, x[13], S21, 0xa9e3e905);
GG(d, a, b, c, x[2], S22, 0xfcefa3f8);
GG(c, d, a, b, x[7], S23, 0x676f02d9);
GG(b, c, d, a, x[12], S24, 0x8d2a4c8a);
HH(a, b, c, d, x[5], S31, 0xfffa3942);
HH(d, a, b, c, x[8], S32, 0x8771f681);
HH(c, d, a, b, x[11], S33, 0x6d9d6122);
HH(b, c, d, a, x[14], S34, 0xfde5380c);
HH(a, b, c, d, x[1], S31, 0xa4beea44);
HH(d, a, b, c, x[4], S32, 0x4bdecfa9);
HH(c, d, a, b, x[7], S33, 0xf6bb4b60);
HH(b, c, d, a, x[10], S34, 0xbebfbc70);
HH(a, b, c, d, x[13], S31, 0x289b7ec6);
HH(d, a, b, c, x[0], S32, 0xeaa127fa);
HH(c, d, a, b, x[3], S33, 0xd4ef3085);
HH(b, c, d, a, x[6], S34, 0x4881d05);
HH(a, b, c, d, x[9], S31, 0xd9d4d039);
HH(d, a, b, c, x[12], S32, 0xe6db99e5);
HH(c, d, a, b, x[15], S33, 0x1fa27cf8);
HH(b, c, d, a, x[2], S34, 0xc4ac5665);
II(a, b, c, d, x[0], S41, 0xf4292244);
II(d, a, b, c, x[7], S42, 0x432aff97);
II(c, d, a, b, x[14], S43, 0xab9423a7);
II(b, c, d, a, x[5], S44, 0xfc93a039);
II(a, b, c, d, x[12], S41, 0x655b59c3);
II(d, a, b, c, x[3], S42, 0x8f0ccc92);
II(c, d, a, b, x[10], S43, 0xffeff47d);
II(b, c, d, a, x[1], S44, 0x85845dd1);
II(a, b, c, d, x[8], S41, 0x6fa87e4f);
II(d, a, b, c, x[15], S42, 0xfe2ce6e0);
II(c, d, a, b, x[6], S43, 0xa3014314);
II(b, c, d, a, x[13], S44, 0x4e0811a1);
II(a, b, c, d, x[4], S41, 0xf7537e82);
II(d, a, b, c, x[11], S42, 0xbd3af235);
II(c, d, a, b, x[2], S43, 0x2ad7d2bb);
II(b, c, d, a, x[9], S44, 0xeb86d391);
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
memset((unsigned char*) x, 0, sizeof(x));
}
static void Encode(output, input, len)
unsigned char *output;
php_uint32 *input;
unsigned int len;
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j] = (unsigned char) (input[i] & 0xff);
output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff);
output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff);
output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff);
}
}
static void Decode(output, input, len)
php_uint32 *output;
const unsigned char *input;
unsigned int len;
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
output[i] = ((php_uint32) input[j]) | (((php_uint32) input[j + 1]) << 8) |
(((php_uint32) input[j + 2]) << 16) | (((php_uint32) input[j + 3]) << 24);
}