Index: Source/WTF/wtf/text/Base64.cpp |
diff --git a/Source/WTF/wtf/text/Base64.cpp b/Source/WTF/wtf/text/Base64.cpp |
deleted file mode 100644 |
index 7a0467a36c8ab33538655b0f54624706ba04c3ac..0000000000000000000000000000000000000000 |
--- a/Source/WTF/wtf/text/Base64.cpp |
+++ /dev/null |
@@ -1,212 +0,0 @@ |
-/* |
- Copyright (C) 2000-2001 Dawit Alemayehu <adawit@kde.org> |
- Copyright (C) 2006 Alexey Proskuryakov <ap@webkit.org> |
- Copyright (C) 2007, 2008 Apple Inc. All rights reserved. |
- Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com> |
- |
- This program is free software; you can redistribute it and/or modify |
- it under the terms of the GNU Lesser General Public License (LGPL) |
- version 2 as published by the Free Software Foundation. |
- |
- This program is distributed in the hope that it will be useful, |
- but WITHOUT ANY WARRANTY; without even the implied warranty of |
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
- GNU General Public License for more details. |
- |
- You should have received a copy of the GNU Library General Public |
- License along with this program; if not, write to the Free Software |
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
- |
- This code is based on the java implementation in HTTPClient |
- package by Ronald Tschalär Copyright (C) 1996-1999. |
-*/ |
- |
-#include "config.h" |
-#include "Base64.h" |
- |
-#include <limits.h> |
-#include <wtf/StringExtras.h> |
-#include <wtf/text/WTFString.h> |
- |
-namespace WTF { |
- |
-static const char base64EncMap[64] = { |
- 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, |
- 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, |
- 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, |
- 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, |
- 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, |
- 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, |
- 0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33, |
- 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F |
-}; |
- |
-static const char base64DecMap[128] = { |
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x3F, |
- 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, |
- 0x3C, 0x3D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, |
- 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, |
- 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, |
- 0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, |
- 0x00, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, |
- 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, |
- 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, |
- 0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00 |
-}; |
- |
-String base64Encode(const char* data, unsigned length, Base64EncodePolicy policy) |
-{ |
- Vector<char> result; |
- base64Encode(data, length, result, policy); |
- return String(result.data(), result.size()); |
-} |
- |
-void base64Encode(const char* data, unsigned len, Vector<char>& out, Base64EncodePolicy policy) |
-{ |
- out.clear(); |
- if (!len) |
- return; |
- |
- // If the input string is pathologically large, just return nothing. |
- // Note: Keep this in sync with the "outLength" computation below. |
- // Rather than being perfectly precise, this is a bit conservative. |
- const unsigned maxInputBufferSize = UINT_MAX / 77 * 76 / 4 * 3 - 2; |
- if (len > maxInputBufferSize) |
- return; |
- |
- unsigned sidx = 0; |
- unsigned didx = 0; |
- |
- unsigned outLength = ((len + 2) / 3) * 4; |
- |
- // Deal with the 76 character per line limit specified in RFC 2045. |
- bool insertLFs = (policy == Base64InsertLFs && outLength > 76); |
- if (insertLFs) |
- outLength += ((outLength - 1) / 76); |
- |
- int count = 0; |
- out.grow(outLength); |
- |
- // 3-byte to 4-byte conversion + 0-63 to ascii printable conversion |
- if (len > 1) { |
- while (sidx < len - 2) { |
- if (insertLFs) { |
- if (count && !(count % 76)) |
- out[didx++] = '\n'; |
- count += 4; |
- } |
- out[didx++] = base64EncMap[(data[sidx] >> 2) & 077]; |
- out[didx++] = base64EncMap[((data[sidx + 1] >> 4) & 017) | ((data[sidx] << 4) & 077)]; |
- out[didx++] = base64EncMap[((data[sidx + 2] >> 6) & 003) | ((data[sidx + 1] << 2) & 077)]; |
- out[didx++] = base64EncMap[data[sidx + 2] & 077]; |
- sidx += 3; |
- } |
- } |
- |
- if (sidx < len) { |
- if (insertLFs && (count > 0) && !(count % 76)) |
- out[didx++] = '\n'; |
- |
- out[didx++] = base64EncMap[(data[sidx] >> 2) & 077]; |
- if (sidx < len - 1) { |
- out[didx++] = base64EncMap[((data[sidx + 1] >> 4) & 017) | ((data[sidx] << 4) & 077)]; |
- out[didx++] = base64EncMap[(data[sidx + 1] << 2) & 077]; |
- } else |
- out[didx++] = base64EncMap[(data[sidx] << 4) & 077]; |
- } |
- |
- // Add padding |
- while (didx < out.size()) { |
- out[didx] = '='; |
- ++didx; |
- } |
-} |
- |
-bool base64Decode(const Vector<char>& in, Vector<char>& out, Base64DecodePolicy policy) |
-{ |
- out.clear(); |
- |
- // If the input string is pathologically large, just return nothing. |
- if (in.size() > UINT_MAX) |
- return false; |
- |
- return base64Decode(in.data(), in.size(), out, policy); |
-} |
- |
-template<typename T> |
-static inline bool base64DecodeInternal(const T* data, unsigned len, Vector<char>& out, Base64DecodePolicy policy) |
-{ |
- out.clear(); |
- if (!len) |
- return true; |
- |
- out.grow(len); |
- |
- bool sawEqualsSign = false; |
- unsigned outLength = 0; |
- for (unsigned idx = 0; idx < len; ++idx) { |
- unsigned ch = data[idx]; |
- if (ch == '=') |
- sawEqualsSign = true; |
- else if (('0' <= ch && ch <= '9') || ('A' <= ch && ch <= 'Z') || ('a' <= ch && ch <= 'z') || ch == '+' || ch == '/') { |
- if (sawEqualsSign) |
- return false; |
- out[outLength] = base64DecMap[ch]; |
- ++outLength; |
- } else if (policy == Base64FailOnInvalidCharacter || (policy == Base64IgnoreWhitespace && !isSpaceOrNewline(ch))) |
- return false; |
- } |
- |
- if (!outLength) |
- return !sawEqualsSign; |
- |
- // Valid data is (n * 4 + [0,2,3]) characters long. |
- if ((outLength % 4) == 1) |
- return false; |
- |
- // 4-byte to 3-byte conversion |
- outLength -= (outLength + 3) / 4; |
- if (!outLength) |
- return false; |
- |
- unsigned sidx = 0; |
- unsigned didx = 0; |
- if (outLength > 1) { |
- while (didx < outLength - 2) { |
- out[didx] = (((out[sidx] << 2) & 255) | ((out[sidx + 1] >> 4) & 003)); |
- out[didx + 1] = (((out[sidx + 1] << 4) & 255) | ((out[sidx + 2] >> 2) & 017)); |
- out[didx + 2] = (((out[sidx + 2] << 6) & 255) | (out[sidx + 3] & 077)); |
- sidx += 4; |
- didx += 3; |
- } |
- } |
- |
- if (didx < outLength) |
- out[didx] = (((out[sidx] << 2) & 255) | ((out[sidx + 1] >> 4) & 003)); |
- |
- if (++didx < outLength) |
- out[didx] = (((out[sidx + 1] << 4) & 255) | ((out[sidx + 2] >> 2) & 017)); |
- |
- if (outLength < out.size()) |
- out.shrink(outLength); |
- |
- return true; |
-} |
- |
-bool base64Decode(const char* data, unsigned len, Vector<char>& out, Base64DecodePolicy policy) |
-{ |
- return base64DecodeInternal<char>(data, len, out, policy); |
-} |
- |
-bool base64Decode(const String& in, Vector<char>& out, Base64DecodePolicy policy) |
-{ |
- return base64DecodeInternal<UChar>(in.characters(), in.length(), out, policy); |
-} |
- |
-} // namespace WTF |