123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138 |
- /***************************************************************************
- *
- * Project _____ __ ____ _ _
- * ( _ ) /__\ (_ _)_| |_ _| |_
- * )(_)( /(__)\ )( (_ _)(_ _)
- * (_____)(__)(__)(__) |_| |_|
- *
- *
- * Copyright 2018-present, Leonid Stryzhevskyi <lganzzzo@gmail.com>
- *
- * 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 "Hex.hpp"
- #if defined(WIN32) || defined(_WIN32)
- #include <winsock2.h>
- #else
- #include <arpa/inet.h>
- #endif
- namespace oatpp { namespace encoding {
-
- const char* Hex::ALPHABET_UPPER = "0123456789ABCDEF";
- const char* Hex::ALPHABET_LOWER = "0123456789abcdef";
-
- void Hex::writeUInt16(v_uint16 value, p_char8 buffer){
- *((p_uint32) buffer) = htonl((ALPHABET_UPPER[ value & 0x000F ] ) |
- (ALPHABET_UPPER[(value & 0x00F0) >> 4] << 8) |
- (ALPHABET_UPPER[(value & 0x0F00) >> 8] << 16) |
- (ALPHABET_UPPER[(value & 0xF000) >> 12] << 24));
-
- }
-
- void Hex::writeUInt32(v_uint32 value, p_char8 buffer){
- writeUInt16(value >> 16, buffer);
- writeUInt16(v_uint16(value), buffer + 4);
- }
-
- v_int32 Hex::readUInt16(const char* buffer, v_uint16& value) {
- value = 0;
- for(v_int32 i = 0; i < 4; i++){
- v_char8 a = buffer[i];
- if(a >= '0' && a <= '9') {
- value |= (a - '0') << ((3 - i) << 2);
- } else if (a >= 'A' && a <= 'F') {
- value |= (a - 'A' + 10) << ((3 - i) << 2);
- } else if (a >= 'a' && a <= 'f') {
- value |= (a - 'a' + 10) << ((3 - i) << 2);
- } else {
- return ERROR_UNKNOWN_SYMBOL;
- }
- }
- return 0;
- }
-
- v_int32 Hex::readUInt32(const char* buffer, v_uint32& value) {
- value = 0;
- for(v_int32 i = 0; i < 8; i++){
- v_char8 a = buffer[i];
- if(a >= '0' && a <= '9') {
- value |= (a - '0') << ((7 - i) << 2);
- } else if (a >= 'A' && a <= 'F') {
- value |= (a - 'A' + 10) << ((7 - i) << 2);
- } else if (a >= 'a' && a <= 'f') {
- value |= (a - 'a' + 10) << ((7 - i) << 2);
- } else {
- return ERROR_UNKNOWN_SYMBOL;
- }
- }
- return 0;
- }
- void Hex::encode(data::stream::ConsistentOutputStream* stream,
- const void* data, v_buff_size size,
- const char* alphabet)
- {
- p_char8 buffer = (p_char8) data;
- v_char8 oneByteBuffer[2];
- for(v_buff_size i = 0; i < size; i ++) {
- auto c = buffer[i];
- v_char8 b1 = 0x0F & (c >> 4);
- v_char8 b2 = 0x0F & (c);
- oneByteBuffer[0] = alphabet[b1];
- oneByteBuffer[1] = alphabet[b2];
- stream->writeSimple(oneByteBuffer, 2);
- }
- }
- void Hex::decode(data::stream::ConsistentOutputStream* stream,
- const void* data, v_buff_size size, bool allowSeparators)
- {
- p_char8 buffer = (p_char8) data;
- v_char8 byte = 0;
- v_int32 shift = 4;
- for(v_buff_size i = 0; i < size; i ++) {
- auto a = buffer[i];
- if(a >= '0' && a <= '9') {
- byte |= (a - '0') << shift;
- shift -= 4;
- } else if (a >= 'A' && a <= 'F') {
- byte |= (a - 'A' + 10) << shift;
- shift -= 4;
- } else if (a >= 'a' && a <= 'f') {
- byte |= (a - 'a' + 10) << shift;
- shift -= 4;
- } else if(!allowSeparators) {
- throw DecodingError("Invalid Character");
- }
- if(shift < 0) {
- stream->writeCharSimple(byte);
- byte = 0;
- shift = 4;
- }
- }
- if(shift != 4) {
- throw DecodingError("Invalid input data size");
- }
- }
- }}
|