diff options
Diffstat (limited to 'dom/webauthn/cbor-cpp/src/encoder.cpp')
| -rw-r--r-- | dom/webauthn/cbor-cpp/src/encoder.cpp | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/dom/webauthn/cbor-cpp/src/encoder.cpp b/dom/webauthn/cbor-cpp/src/encoder.cpp new file mode 100644 index 0000000000..d88c3f4fa2 --- /dev/null +++ b/dom/webauthn/cbor-cpp/src/encoder.cpp @@ -0,0 +1,154 @@ +/* + Copyright 2014-2015 Stanislav Ovsyannikov + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +#include "encoder.h" + +using namespace cbor; + + +encoder::encoder(output &out) { + _out = &out; +} + +encoder::~encoder() { + +} + +void encoder::write_type_value(int major_type, unsigned int value) { + major_type <<= 5; + if(value < 24) { + _out->put_byte((unsigned char) (major_type | value)); + } else if(value < 256) { + _out->put_byte((unsigned char) (major_type | 24)); + _out->put_byte((unsigned char) value); + } else if(value < 65536) { + _out->put_byte((unsigned char) (major_type | 25)); + _out->put_byte((unsigned char) (value >> 8)); + _out->put_byte((unsigned char) value); + } else { + _out->put_byte((unsigned char) (major_type | 26)); + _out->put_byte((unsigned char) (value >> 24)); + _out->put_byte((unsigned char) (value >> 16)); + _out->put_byte((unsigned char) (value >> 8)); + _out->put_byte((unsigned char) value); + } +} + +void encoder::write_type_value(int major_type, unsigned long long value) { + major_type <<= 5; + if(value < 24ULL) { + _out->put_byte((unsigned char) (major_type | value)); + } else if(value < 256ULL) { + _out->put_byte((unsigned char) (major_type | 24)); + _out->put_byte((unsigned char) value); + } else if(value < 65536ULL) { + _out->put_byte((unsigned char) (major_type | 25)); + _out->put_byte((unsigned char) (value >> 8)); + _out->put_byte((unsigned char) value); + } else if(value < 4294967296ULL) { + _out->put_byte((unsigned char) (major_type | 26)); + _out->put_byte((unsigned char) (value >> 24)); + _out->put_byte((unsigned char) (value >> 16)); + _out->put_byte((unsigned char) (value >> 8)); + _out->put_byte((unsigned char) value); + } else { + _out->put_byte((unsigned char) (major_type | 27)); + _out->put_byte((unsigned char) (value >> 56)); + _out->put_byte((unsigned char) (value >> 48)); + _out->put_byte((unsigned char) (value >> 40)); + _out->put_byte((unsigned char) (value >> 32)); + _out->put_byte((unsigned char) (value >> 24)); + _out->put_byte((unsigned char) (value >> 16)); + _out->put_byte((unsigned char) (value >> 8)); + _out->put_byte((unsigned char) value); + } +} + +void encoder::write_int(unsigned int value) { + write_type_value(0, value); +} + +void encoder::write_int(unsigned long long value) { + write_type_value(0, value); +} + +void encoder::write_int(long long value) { + if(value < 0) { + write_type_value(1, (unsigned long long) -(value+1)); + } else { + write_type_value(0, (unsigned long long) value); + } +} + +void encoder::write_int(int value) { + if(value < 0) { + write_type_value(1, (unsigned int) -(value+1)); + } else { + write_type_value(0, (unsigned int) value); + } +} + +void encoder::write_bytes(const unsigned char *data, unsigned int size) { + write_type_value(2, size); + _out->put_bytes(data, size); +} + +void encoder::write_raw(const unsigned char *data, unsigned int size) { + _out->put_bytes(data, size); +} + +void encoder::write_string(const char *data, unsigned int size) { + write_type_value(3, size); + _out->put_bytes((const unsigned char *) data, size); +} + +void encoder::write_string(const std::string str) { + write_type_value(3, (unsigned int) str.size()); + _out->put_bytes((const unsigned char *) str.c_str(), (int) str.size()); +} + + +void encoder::write_array(int size) { + write_type_value(4, (unsigned int) size); +} + +void encoder::write_map(int size) { + write_type_value(5, (unsigned int) size); +} + +void encoder::write_tag(const unsigned int tag) { + write_type_value(6, tag); +} + +void encoder::write_special(int special) { + write_type_value(7, (unsigned int) special); +} + +void encoder::write_bool(bool value) { + if (value == true) { + _out->put_byte((unsigned char) 0xf5); + } else { + _out->put_byte((unsigned char) 0xf4); + } +} + +void encoder::write_null() { + _out->put_byte((unsigned char) 0xf6); +} + +void encoder::write_undefined() { + _out->put_byte((unsigned char) 0xf7); +} |