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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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