diff options
Diffstat (limited to 'src/codec/base64')
-rw-r--r-- | src/codec/base64/b64_char.cpp | 47 | ||||
-rw-r--r-- | src/codec/base64/base64.cpp | 228 | ||||
-rw-r--r-- | src/codec/base64/base64.h | 94 | ||||
-rw-r--r-- | src/codec/base64/info.txt | 13 |
4 files changed, 0 insertions, 382 deletions
diff --git a/src/codec/base64/b64_char.cpp b/src/codec/base64/b64_char.cpp deleted file mode 100644 index e5722a0fd..000000000 --- a/src/codec/base64/b64_char.cpp +++ /dev/null @@ -1,47 +0,0 @@ -/* -* Base64 Codec Character Tables -* (C) 1999-2008 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/base64.h> - -namespace Botan { - -/* -* Base64 Encoder Lookup Table -*/ -const byte Base64_Encoder::BIN_TO_BASE64[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 }; - -/* -* Base64 Decoder Lookup Table -*/ -const byte Base64_Decoder::BASE64_TO_BIN[256] = { -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x3E, 0x80, 0x80, 0x80, 0x3F, 0x34, 0x35, 0x36, 0x37, -0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -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, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 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, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, -0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 }; - -} diff --git a/src/codec/base64/base64.cpp b/src/codec/base64/base64.cpp deleted file mode 100644 index 9110dc57e..000000000 --- a/src/codec/base64/base64.cpp +++ /dev/null @@ -1,228 +0,0 @@ -/* -* Base64 Encoder/Decoder -* (C) 1999-2007 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/base64.h> -#include <botan/charset.h> -#include <botan/exceptn.h> -#include <algorithm> - -namespace Botan { - -/* -* Base64_Encoder Constructor -*/ -Base64_Encoder::Base64_Encoder(bool breaks, u32bit length, bool t_n) : - line_length(breaks ? length : 0), trailing_newline(t_n) - { - in.resize(48); - out.resize(4); - - counter = position = 0; - } - -/* -* Base64 Encoding Operation -*/ -void Base64_Encoder::encode(const byte in[3], byte out[4]) - { - out[0] = BIN_TO_BASE64[((in[0] & 0xFC) >> 2)]; - out[1] = BIN_TO_BASE64[((in[0] & 0x03) << 4) | (in[1] >> 4)]; - out[2] = BIN_TO_BASE64[((in[1] & 0x0F) << 2) | (in[2] >> 6)]; - out[3] = BIN_TO_BASE64[((in[2] & 0x3F) )]; - } - -/* -* Encode and send a block -*/ -void Base64_Encoder::encode_and_send(const byte block[], u32bit length) - { - for(u32bit j = 0; j != length; j += 3) - { - encode(block + j, out); - do_output(out, 4); - } - } - -/* -* Handle the output -*/ -void Base64_Encoder::do_output(const byte input[], u32bit length) - { - if(line_length == 0) - send(input, length); - else - { - u32bit remaining = length, offset = 0; - while(remaining) - { - u32bit sent = std::min(line_length - counter, remaining); - send(input + offset, sent); - counter += sent; - remaining -= sent; - offset += sent; - if(counter == line_length) - { - send('\n'); - counter = 0; - } - } - } - } - -/* -* Convert some data into Base64 -*/ -void Base64_Encoder::write(const byte input[], u32bit length) - { - in.copy(position, input, length); - if(position + length >= in.size()) - { - encode_and_send(in, in.size()); - input += (in.size() - position); - length -= (in.size() - position); - while(length >= in.size()) - { - encode_and_send(input, in.size()); - input += in.size(); - length -= in.size(); - } - in.copy(input, length); - position = 0; - } - position += length; - } - -/* -* Flush buffers -*/ -void Base64_Encoder::end_msg() - { - u32bit start_of_last_block = 3 * (position / 3), - left_over = position % 3; - encode_and_send(in, start_of_last_block); - - if(left_over) - { - SecureBuffer<byte, 3> remainder(in + start_of_last_block, left_over); - - encode(remainder, out); - - u32bit empty_bits = 8 * (3 - left_over), index = 4 - 1; - while(empty_bits >= 8) - { - out[index--] = '='; - empty_bits -= 6; - } - - do_output(out, 4); - } - - if(trailing_newline || (counter && line_length)) - send('\n'); - - counter = position = 0; - } - -/* -* Base64_Decoder Constructor -*/ -Base64_Decoder::Base64_Decoder(Decoder_Checking c) : checking(c) - { - in.resize(48); - out.resize(3); - position = 0; - } - -/* -* Check if a character is a valid Base64 char -*/ -bool Base64_Decoder::is_valid(byte in) - { - return (BASE64_TO_BIN[in] != 0x80); - } - -/* -* Base64 Decoding Operation -*/ -void Base64_Decoder::decode(const byte in[4], byte out[3]) - { - out[0] = ((BASE64_TO_BIN[in[0]] << 2) | (BASE64_TO_BIN[in[1]] >> 4)); - out[1] = ((BASE64_TO_BIN[in[1]] << 4) | (BASE64_TO_BIN[in[2]] >> 2)); - out[2] = ((BASE64_TO_BIN[in[2]] << 6) | (BASE64_TO_BIN[in[3]])); - } - -/* -* Decode and send a block -*/ -void Base64_Decoder::decode_and_send(const byte block[], u32bit length) - { - for(u32bit j = 0; j != length; j += 4) - { - decode(block + j, out); - send(out, 3); - } - } - -/* -* Handle processing an invalid character -*/ -void Base64_Decoder::handle_bad_char(byte c) - { - if(c == '=' || checking == NONE) - return; - - if((checking == IGNORE_WS) && Charset::is_space(c)) - return; - - throw Decoding_Error( - std::string("Base64_Decoder: Invalid base64 character '") + - static_cast<char>(c) + "'" - ); - } - -/* -* Convert some data from Base64 -*/ -void Base64_Decoder::write(const byte input[], u32bit length) - { - for(u32bit j = 0; j != length; ++j) - { - if(is_valid(input[j])) - in[position++] = input[j]; - else - handle_bad_char(input[j]); - - if(position == in.size()) - { - decode_and_send(in, in.size()); - position = 0; - } - } - } - -/* -* Flush buffers -*/ -void Base64_Decoder::end_msg() - { - if(position != 0) - { - u32bit start_of_last_block = 4 * (position / 4), - left_over = position % 4; - decode_and_send(in, start_of_last_block); - - if(left_over) - { - SecureBuffer<byte, 4> remainder(in + start_of_last_block, left_over); - decode(remainder, out); - send(out, ((left_over == 1) ? (1) : (left_over - 1))); - } - } - position = 0; - } - -} diff --git a/src/codec/base64/base64.h b/src/codec/base64/base64.h deleted file mode 100644 index aca02da14..000000000 --- a/src/codec/base64/base64.h +++ /dev/null @@ -1,94 +0,0 @@ -/* -* Base64 Encoder/Decoder -* (C) 1999-2007 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#ifndef BOTAN_BASE64_H__ -#define BOTAN_BASE64_H__ - -#include <botan/filter.h> - -namespace Botan { - -/** -* This class represents a Base64 encoder. -*/ -class BOTAN_DLL Base64_Encoder : public Filter - { - public: - static void encode(const byte in[3], byte out[4]); - - /** - * Input a part of a message to the encoder. - * @param input the message to input as a byte array - * @param length the length of the byte array input - */ - void write(const byte input[], u32bit length); - - /** - * Inform the Encoder that the current message shall be closed. - */ - void end_msg(); - - /** - * Create a base64 encoder. - * @param breaks whether to use line breaks in the Streamcipheroutput - * @param length the length of the lines of the output - * @param t_n whether to use a trailing newline - */ - Base64_Encoder(bool breaks = false, u32bit length = 72, - bool t_n = false); - private: - void encode_and_send(const byte[], u32bit); - void do_output(const byte[], u32bit); - static const byte BIN_TO_BASE64[64]; - - const u32bit line_length; - const bool trailing_newline; - SecureVector<byte> in, out; - u32bit position, counter; - }; - -/** -* This object represents a Base64 decoder. -*/ -class BOTAN_DLL Base64_Decoder : public Filter - { - public: - static void decode(const byte input[4], byte output[3]); - - static bool is_valid(byte); - - /** - * Input a part of a message to the decoder. - * @param input the message to input as a byte array - * @param length the length of the byte array input - */ - void write(const byte input[], u32bit length); - - /** - * Inform the Encoder that the current message shall be closed. - */ - void end_msg(); - - /** - * Create a base64 encoder. - * @param checking the type of checking that shall be performed by - * the decoder - */ - Base64_Decoder(Decoder_Checking checking = NONE); - private: - void decode_and_send(const byte[], u32bit); - void handle_bad_char(byte); - static const byte BASE64_TO_BIN[256]; - - const Decoder_Checking checking; - SecureVector<byte> in, out; - u32bit position; - }; - -} - -#endif diff --git a/src/codec/base64/info.txt b/src/codec/base64/info.txt deleted file mode 100644 index 1d36b948e..000000000 --- a/src/codec/base64/info.txt +++ /dev/null @@ -1,13 +0,0 @@ -define BASE64_CODEC - -load_on auto - -<add> -base64.cpp -b64_char.cpp -base64.h -</add> - -<requires> -filters -</requires> |