diff options
Diffstat (limited to 'lib/httpserver/encode.h')
-rw-r--r-- | lib/httpserver/encode.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/lib/httpserver/encode.h b/lib/httpserver/encode.h new file mode 100644 index 00000000..81957a0f --- /dev/null +++ b/lib/httpserver/encode.h @@ -0,0 +1,87 @@ +// :mode=c++: +/* +encode.h - c++ wrapper for a base64 encoding algorithm + +This is part of the libb64 project, and has been placed in the public domain. +For details, see http://sourceforge.net/projects/libb64 +*/ + +#ifndef BASE64_ENCODE_H +#define BASE64_ENCODE_H + +#include <iostream> + +namespace base64 +{ + + extern "C" + { + #include "cencode.h" + } + + struct encoder + { + base64_encodestate _state; + int _buffersize; + + encoder(int buffersize_in = 4096) + : _buffersize(buffersize_in) + {} + int encode(char value_in) + { + return base64_encode_value(value_in); + } + int encode(const char* code_in, const int length_in, char* plaintext_out) + { + return base64_encode_block(code_in, length_in, plaintext_out, &_state); + } + int encode_end(char* plaintext_out) + { + return base64_encode_blockend(plaintext_out, &_state); + } + std::string encode(const std::string& input) + { + base64_init_encodestate(&_state); + char* output = new char[2*input.size()]; + int outlength = encode(input.c_str(), input.size(), + output); + outlength += encode_end(output + outlength); + std::string output_string(output, outlength); + base64_init_encodestate(&_state); + delete [] output; + return output_string; + } + void encode(std::istream& istream_in, std::ostream& ostream_in) + { + base64_init_encodestate(&_state); + // + const int N = _buffersize; + char* plaintext = new char[N]; + char* code = new char[2*N]; + int plainlength; + int codelength; + + do + { + istream_in.read(plaintext, N); + plainlength = istream_in.gcount(); + // + codelength = encode(plaintext, plainlength, code); + ostream_in.write(code, codelength); + } + while (istream_in.good() && plainlength > 0); + + codelength = encode_end(code); + ostream_in.write(code, codelength); + // + base64_init_encodestate(&_state); + + delete [] code; + delete [] plaintext; + } + }; + +} // namespace base64 + +#endif // BASE64_ENCODE_H + |