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76 lines
2.3 KiB
76 lines
2.3 KiB
// base64.cpp - written and placed in the public domain by Wei Dai
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#include "pch.h"
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#include "base64.h"
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NAMESPACE_BEGIN(CryptoPP)
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// Base64
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static const byte s_stdVec[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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// Base64URL
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static const byte s_urlVec[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
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static const byte s_padding = '=';
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void Base64Encoder::IsolatedInitialize(const NameValuePairs ¶meters)
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{
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bool insertLineBreaks = parameters.GetValueWithDefault(Name::InsertLineBreaks(), true);
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int maxLineLength = parameters.GetIntValueWithDefault(Name::MaxLineLength(), 72);
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const char *lineBreak = insertLineBreaks ? "\n" : "";
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m_filter->Initialize(CombinedNameValuePairs(
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parameters,
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MakeParameters(Name::EncodingLookupArray(), &s_stdVec[0], false)
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(Name::PaddingByte(), s_padding)
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(Name::GroupSize(), insertLineBreaks ? maxLineLength : 0)
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(Name::Separator(), ConstByteArrayParameter(lineBreak))
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(Name::Terminator(), ConstByteArrayParameter(lineBreak))
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(Name::Log2Base(), 6, true)));
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}
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void Base64URLEncoder::IsolatedInitialize(const NameValuePairs ¶meters)
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{
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bool insertLineBreaks = parameters.GetValueWithDefault(Name::InsertLineBreaks(), true);
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int maxLineLength = parameters.GetIntValueWithDefault(Name::MaxLineLength(), 72);
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const char *lineBreak = insertLineBreaks ? "\n" : "";
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m_filter->Initialize(CombinedNameValuePairs(
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parameters,
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MakeParameters(Name::EncodingLookupArray(), &s_urlVec[0], false)
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(Name::PaddingByte(), s_padding)
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(Name::GroupSize(), insertLineBreaks ? maxLineLength : 0)
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(Name::Separator(), ConstByteArrayParameter(lineBreak))
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(Name::Terminator(), ConstByteArrayParameter(lineBreak))
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(Name::Log2Base(), 6, true)));
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}
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const int *Base64Decoder::GetDecodingLookupArray()
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{
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static volatile bool s_initialized = false;
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static int s_array[256];
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if (!s_initialized)
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{
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InitializeDecodingLookupArray(s_array, s_stdVec, 64, false);
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s_initialized = true;
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}
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return s_array;
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}
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const int *Base64URLDecoder::GetDecodingLookupArray()
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{
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static volatile bool s_initialized = false;
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static int s_array[256];
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if (!s_initialized)
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{
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InitializeDecodingLookupArray(s_array, s_urlVec, 64, false);
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s_initialized = true;
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}
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return s_array;
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}
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NAMESPACE_END
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