Move Source/WTF/wtf to Source/wtf

Source/WTF/wtf/MD5.cpp

Index: Source/WTF/wtf/MD5.cpp
diff --git a/Source/WTF/wtf/MD5.cpp b/Source/WTF/wtf/MD5.cpp
deleted file mode 100644
index 07bbadd9f5ea3dbf1718a990229498420c902b27..0000000000000000000000000000000000000000
--- a/Source/WTF/wtf/MD5.cpp
+++ /dev/null
@@ -1,309 +0,0 @@
-// The original file was copied from sqlite, and was in the public domain.
-// Modifications Copyright 2006 Google Inc. All Rights Reserved
-/*
- * Copyright (C) 2010 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest.  This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, construct an
- * MD5 instance, call addBytes as needed on buffers full of bytes,
- * and then call checksum, which will fill a supplied 16-byte array
- * with the digest.
- */
-
-#include "config.h"
-#include "MD5.h"
-
-#include "Assertions.h"
-#ifndef NDEBUG
-#include "StringExtras.h"
-#include "text/CString.h"
-#endif
-#include <wtf/StdLibExtras.h>
-
-namespace WTF {
-
-#ifdef NDEBUG
-static inline void testMD5() { }
-#else
-// MD5 test case.
-static bool isTestMD5Done;
-
-static void expectMD5(CString input, CString expected)
-{
-    MD5 md5;
-    md5.addBytes(reinterpret_cast<const uint8_t*>(input.data()), input.length());
-    Vector<uint8_t, 16> digest;
-    md5.checksum(digest);
-    char* buf = 0;
-    CString actual = CString::newUninitialized(32, buf);
-    for (size_t i = 0; i < 16; i++) {
-        snprintf(buf, 3, "%02x", digest.at(i));
-        buf += 2;
-    }
-    ASSERT_WITH_MESSAGE(actual == expected, "input:%s[%lu] actual:%s expected:%s", input.data(), static_cast<unsigned long>(input.length()), actual.data(), expected.data());
-}
-
-static void testMD5()
-{
-    if (isTestMD5Done)
-        return;
-    isTestMD5Done = true;
-
-    // MD5 Test suite from http://www.ietf.org/rfc/rfc1321.txt
-    expectMD5("", "d41d8cd98f00b204e9800998ecf8427e");
-    expectMD5("a", "0cc175b9c0f1b6a831c399e269772661");
-    expectMD5("abc", "900150983cd24fb0d6963f7d28e17f72");
-    expectMD5("message digest", "f96b697d7cb7938d525a2f31aaf161d0");
-    expectMD5("abcdefghijklmnopqrstuvwxyz", "c3fcd3d76192e4007dfb496cca67e13b");
-    expectMD5("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", "d174ab98d277d9f5a5611c2c9f419d9f");
-    expectMD5("12345678901234567890123456789012345678901234567890123456789012345678901234567890", "57edf4a22be3c955ac49da2e2107b67a");
-}
-#endif
-
-// Note: this code is harmless on little-endian machines.
-
-static void reverseBytes(uint8_t* buf, unsigned longs)
-{
-    ASSERT(longs > 0);
-    do {
-        uint32_t t = static_cast<uint32_t>(buf[3] << 8 | buf[2]) << 16 | buf[1] << 8 | buf[0];
-        ASSERT_WITH_MESSAGE(!(reinterpret_cast<uintptr_t>(buf) % sizeof(t)), "alignment error of buf");
-        *reinterpret_cast_ptr<uint32_t *>(buf) = t;
-        buf += 4;
-    } while (--longs);
-}
-
-// The four core functions.
-// F1 is originally defined as (x & y | ~x & z), but optimized somewhat: 4 bit ops -> 3 bit ops.
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-// This is the central step in the MD5 algorithm.
-#define MD5STEP(f, w, x, y, z, data, s) \
-    (w += f(x, y, z) + data, w = w << s | w >> (32 - s), w += x)
-
-static void MD5Transform(uint32_t buf[4], const uint32_t in[16])
-{
-    uint32_t a = buf[0];
-    uint32_t b = buf[1];
-    uint32_t c = buf[2];
-    uint32_t d = buf[3];
-
-    MD5STEP(F1, a, b, c, d, in[ 0]+0xd76aa478,  7);
-    MD5STEP(F1, d, a, b, c, in[ 1]+0xe8c7b756, 12);
-    MD5STEP(F1, c, d, a, b, in[ 2]+0x242070db, 17);
-    MD5STEP(F1, b, c, d, a, in[ 3]+0xc1bdceee, 22);
-    MD5STEP(F1, a, b, c, d, in[ 4]+0xf57c0faf,  7);
-    MD5STEP(F1, d, a, b, c, in[ 5]+0x4787c62a, 12);
-    MD5STEP(F1, c, d, a, b, in[ 6]+0xa8304613, 17);
-    MD5STEP(F1, b, c, d, a, in[ 7]+0xfd469501, 22);
-    MD5STEP(F1, a, b, c, d, in[ 8]+0x698098d8,  7);
-    MD5STEP(F1, d, a, b, c, in[ 9]+0x8b44f7af, 12);
-    MD5STEP(F1, c, d, a, b, in[10]+0xffff5bb1, 17);
-    MD5STEP(F1, b, c, d, a, in[11]+0x895cd7be, 22);
-    MD5STEP(F1, a, b, c, d, in[12]+0x6b901122,  7);
-    MD5STEP(F1, d, a, b, c, in[13]+0xfd987193, 12);
-    MD5STEP(F1, c, d, a, b, in[14]+0xa679438e, 17);
-    MD5STEP(F1, b, c, d, a, in[15]+0x49b40821, 22);
-
-    MD5STEP(F2, a, b, c, d, in[ 1]+0xf61e2562,  5);
-    MD5STEP(F2, d, a, b, c, in[ 6]+0xc040b340,  9);
-    MD5STEP(F2, c, d, a, b, in[11]+0x265e5a51, 14);
-    MD5STEP(F2, b, c, d, a, in[ 0]+0xe9b6c7aa, 20);
-    MD5STEP(F2, a, b, c, d, in[ 5]+0xd62f105d,  5);
-    MD5STEP(F2, d, a, b, c, in[10]+0x02441453,  9);
-    MD5STEP(F2, c, d, a, b, in[15]+0xd8a1e681, 14);
-    MD5STEP(F2, b, c, d, a, in[ 4]+0xe7d3fbc8, 20);
-    MD5STEP(F2, a, b, c, d, in[ 9]+0x21e1cde6,  5);
-    MD5STEP(F2, d, a, b, c, in[14]+0xc33707d6,  9);
-    MD5STEP(F2, c, d, a, b, in[ 3]+0xf4d50d87, 14);
-    MD5STEP(F2, b, c, d, a, in[ 8]+0x455a14ed, 20);
-    MD5STEP(F2, a, b, c, d, in[13]+0xa9e3e905,  5);
-    MD5STEP(F2, d, a, b, c, in[ 2]+0xfcefa3f8,  9);
-    MD5STEP(F2, c, d, a, b, in[ 7]+0x676f02d9, 14);
-    MD5STEP(F2, b, c, d, a, in[12]+0x8d2a4c8a, 20);
-
-    MD5STEP(F3, a, b, c, d, in[ 5]+0xfffa3942,  4);
-    MD5STEP(F3, d, a, b, c, in[ 8]+0x8771f681, 11);
-    MD5STEP(F3, c, d, a, b, in[11]+0x6d9d6122, 16);
-    MD5STEP(F3, b, c, d, a, in[14]+0xfde5380c, 23);
-    MD5STEP(F3, a, b, c, d, in[ 1]+0xa4beea44,  4);
-    MD5STEP(F3, d, a, b, c, in[ 4]+0x4bdecfa9, 11);
-    MD5STEP(F3, c, d, a, b, in[ 7]+0xf6bb4b60, 16);
-    MD5STEP(F3, b, c, d, a, in[10]+0xbebfbc70, 23);
-    MD5STEP(F3, a, b, c, d, in[13]+0x289b7ec6,  4);
-    MD5STEP(F3, d, a, b, c, in[ 0]+0xeaa127fa, 11);
-    MD5STEP(F3, c, d, a, b, in[ 3]+0xd4ef3085, 16);
-    MD5STEP(F3, b, c, d, a, in[ 6]+0x04881d05, 23);
-    MD5STEP(F3, a, b, c, d, in[ 9]+0xd9d4d039,  4);
-    MD5STEP(F3, d, a, b, c, in[12]+0xe6db99e5, 11);
-    MD5STEP(F3, c, d, a, b, in[15]+0x1fa27cf8, 16);
-    MD5STEP(F3, b, c, d, a, in[ 2]+0xc4ac5665, 23);
-
-    MD5STEP(F4, a, b, c, d, in[ 0]+0xf4292244,  6);
-    MD5STEP(F4, d, a, b, c, in[ 7]+0x432aff97, 10);
-    MD5STEP(F4, c, d, a, b, in[14]+0xab9423a7, 15);
-    MD5STEP(F4, b, c, d, a, in[ 5]+0xfc93a039, 21);
-    MD5STEP(F4, a, b, c, d, in[12]+0x655b59c3,  6);
-    MD5STEP(F4, d, a, b, c, in[ 3]+0x8f0ccc92, 10);
-    MD5STEP(F4, c, d, a, b, in[10]+0xffeff47d, 15);
-    MD5STEP(F4, b, c, d, a, in[ 1]+0x85845dd1, 21);
-    MD5STEP(F4, a, b, c, d, in[ 8]+0x6fa87e4f,  6);
-    MD5STEP(F4, d, a, b, c, in[15]+0xfe2ce6e0, 10);
-    MD5STEP(F4, c, d, a, b, in[ 6]+0xa3014314, 15);
-    MD5STEP(F4, b, c, d, a, in[13]+0x4e0811a1, 21);
-    MD5STEP(F4, a, b, c, d, in[ 4]+0xf7537e82,  6);
-    MD5STEP(F4, d, a, b, c, in[11]+0xbd3af235, 10);
-    MD5STEP(F4, c, d, a, b, in[ 2]+0x2ad7d2bb, 15);
-    MD5STEP(F4, b, c, d, a, in[ 9]+0xeb86d391, 21);
-
-    buf[0] += a;
-    buf[1] += b;
-    buf[2] += c;
-    buf[3] += d;
-}
-
-MD5::MD5()
-{
-    // FIXME: Move unit tests somewhere outside the constructor. See bug 55853.
-    testMD5();
-    m_buf[0] = 0x67452301;
-    m_buf[1] = 0xefcdab89;
-    m_buf[2] = 0x98badcfe;
-    m_buf[3] = 0x10325476;
-    m_bits[0] = 0;
-    m_bits[1] = 0;
-    memset(m_in, 0, sizeof(m_in));
-    ASSERT_WITH_MESSAGE(!(reinterpret_cast<uintptr_t>(m_in) % sizeof(uint32_t)), "alignment error of m_in");
-}
-
-void MD5::addBytes(const uint8_t* input, size_t length)
-{
-    const uint8_t* buf = input;
-
-    // Update bitcount
-    uint32_t t = m_bits[0];
-    m_bits[0] = t + (length << 3);
-    if (m_bits[0] < t)
-        m_bits[1]++; // Carry from low to high
-    m_bits[1] += length >> 29;
-
-    t = (t >> 3) & 0x3f; // Bytes already in shsInfo->data
-
-    // Handle any leading odd-sized chunks
-
-    if (t) {
-        uint8_t* p = m_in + t;
-
-        t = 64 - t;
-        if (length < t) {
-            memcpy(p, buf, length);
-            return;
-        }
-        memcpy(p, buf, t);
-        reverseBytes(m_in, 16);
-        MD5Transform(m_buf, reinterpret_cast_ptr<uint32_t*>(m_in)); // m_in is 4-byte aligned.
-        buf += t;
-        length -= t;
-    }
-
-    // Process data in 64-byte chunks
-
-    while (length >= 64) {
-        memcpy(m_in, buf, 64);
-        reverseBytes(m_in, 16);
-        MD5Transform(m_buf, reinterpret_cast_ptr<uint32_t*>(m_in)); // m_in is 4-byte aligned.
-        buf += 64;
-        length -= 64;
-    }
-
-    // Handle any remaining bytes of data.
-    memcpy(m_in, buf, length);
-}
-
-void MD5::checksum(Vector<uint8_t, 16>& digest)
-{
-    // Compute number of bytes mod 64
-    unsigned count = (m_bits[0] >> 3) & 0x3F;
-
-    // Set the first char of padding to 0x80.  This is safe since there is
-    // always at least one byte free
-    uint8_t* p = m_in + count;
-    *p++ = 0x80;
-
-    // Bytes of padding needed to make 64 bytes
-    count = 64 - 1 - count;
-
-    // Pad out to 56 mod 64
-    if (count < 8) {
-        // Two lots of padding:  Pad the first block to 64 bytes
-        memset(p, 0, count);
-        reverseBytes(m_in, 16);
-        MD5Transform(m_buf, reinterpret_cast_ptr<uint32_t *>(m_in)); // m_in is 4-byte aligned.
-
-        // Now fill the next block with 56 bytes
-        memset(m_in, 0, 56);
-    } else {
-        // Pad block to 56 bytes
-        memset(p, 0, count - 8);
-    }
-    reverseBytes(m_in, 14);
-
-    // Append length in bits and transform
-    // m_in is 4-byte aligned.
-    (reinterpret_cast_ptr<uint32_t*>(m_in))[14] = m_bits[0];
-    (reinterpret_cast_ptr<uint32_t*>(m_in))[15] = m_bits[1];
-
-    MD5Transform(m_buf, reinterpret_cast_ptr<uint32_t*>(m_in));
-    reverseBytes(reinterpret_cast<uint8_t*>(m_buf), 4);
-
-    // Now, m_buf contains checksum result.
-    if (!digest.isEmpty())
-        digest.clear();
-    digest.append(reinterpret_cast<uint8_t*>(m_buf), 16);
-
-    // In case it's sensitive
-    memset(m_buf, 0, sizeof(m_buf));
-    memset(m_bits, 0, sizeof(m_bits));
-    memset(m_in, 0, sizeof(m_in));
-}
-
-} // namespace WTF