1/* 2 * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. 3 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 4 * Copyright (C) 2013 Samsung Electronics. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following disclaimer 14 * in the documentation and/or other materials provided with the 15 * distribution. 16 * * Neither the name of Google Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived from 18 * this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include "config.h" 34#include "core/frame/DOMWindowBase64.h" 35 36#include "bindings/core/v8/ExceptionState.h" 37#include "core/dom/ExceptionCode.h" 38#include "core/html/parser/HTMLParserIdioms.h" 39#include "wtf/text/Base64.h" 40 41namespace blink { 42 43String DOMWindowBase64::btoa(const String& stringToEncode, ExceptionState& exceptionState) 44{ 45 if (stringToEncode.isNull()) 46 return String(); 47 48 if (!stringToEncode.containsOnlyLatin1()) { 49 exceptionState.throwDOMException(InvalidCharacterError, "The string to be encoded contains characters outside of the Latin1 range."); 50 return String(); 51 } 52 53 return base64Encode(stringToEncode.latin1()); 54} 55 56String DOMWindowBase64::atob(const String& encodedString, ExceptionState& exceptionState) 57{ 58 if (encodedString.isNull()) 59 return String(); 60 61 if (!encodedString.containsOnlyLatin1()) { 62 exceptionState.throwDOMException(InvalidCharacterError, "The string to be decoded contains characters outside of the Latin1 range."); 63 return String(); 64 } 65 Vector<char> out; 66 if (!base64Decode(encodedString, out, isHTMLSpace<UChar>, Base64ValidatePadding)) { 67 exceptionState.throwDOMException(InvalidCharacterError, "The string to be decoded is not correctly encoded."); 68 return String(); 69 } 70 71 return String(out.data(), out.size()); 72} 73 74} // namespace blink 75