#include "TessesFramework/Uuid.hpp" #include "TessesFramework/Http/HttpUtils.hpp" #include "TessesFramework/Crypto/Crypto.hpp" namespace Tesses::Framework { Uuid Uuid::Generate() { //xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx Uuid uuid; Uuid::Generate(uuid); return uuid; } void Uuid::Generate(Uuid& uuid) { std::vector bytes(16); Crypto::RandomBytes(bytes, "TF_UUID"); uuid.time_low = (uint32_t)bytes[0]; uuid.time_low |= (uint32_t)bytes[1] << 8; uuid.time_low |= (uint32_t)bytes[2] << 16; uuid.time_low |= (uint32_t)bytes[3] << 24; uuid.time_mid = (uint16_t)bytes[4]; uuid.time_mid |= (uint16_t)bytes[5] << 8; uuid.time_hi_and_version = (uint16_t)bytes[6]; uuid.time_hi_and_version |= (uint16_t)bytes[7] << 8; uuid.clock_seq_hi_and_reserved = bytes[8]; uuid.clock_seq_low = bytes[9]; for(size_t i = 0; i < 6; i++) { uuid.node[i] = bytes[i+10]; } uuid.time_hi_and_version &= ~0x00F0; uuid.time_hi_and_version |= 0x0040; uuid.clock_seq_hi_and_reserved &= ~0b11000000; uuid.clock_seq_hi_and_reserved |= 0b10000000; } bool Uuid::TryParse(std::string text, Uuid& uuid) { std::array hex_digits; size_t hex_offset = 0; size_t text_offset = 0; for(; text_offset < text.size(); text_offset++) { if(text[text_offset] == '{' && (text_offset != 0 || hex_offset != 0)) return false; if(text[text_offset] == '}' && hex_offset < 32) return false; if(text[text_offset] == '-' && hex_offset != 8 && hex_offset != 12 && hex_offset != 16 && hex_offset != 20) return false; if((text[text_offset] >= 'A' && text[text_offset] <= 'F') || (text[text_offset] >= 'a' && text[text_offset] <= 'f') || text[text_offset] >= '0' && text[text_offset] <= '9') { if(hex_offset >= 32) return false; hex_digits[hex_offset] = Http::HttpUtils::HexToNibble(text[text_offset]); hex_offset++; } else return false; } uint8_t b = hex_digits[0] << 4 | hex_digits[1]; uuid.time_low = (uint32_t)b; b = hex_digits[2] << 4 | hex_digits[3]; uuid.time_low |= (uint32_t)b << 8; b = hex_digits[4] << 4 | hex_digits[5]; uuid.time_low |= (uint32_t)b << 16; b = hex_digits[6] << 4 | hex_digits[7]; uuid.time_low |= (uint32_t)b << 24; b = hex_digits[8] << 4 | hex_digits[9]; uuid.time_mid = (uint16_t)b; b = hex_digits[10] << 4 | hex_digits[11]; uuid.time_mid |= (uint16_t)b << 8; b = hex_digits[12] << 4 | hex_digits[13]; uuid.time_hi_and_version = (uint16_t)b; b = hex_digits[14] << 4 | hex_digits[15]; uuid.time_hi_and_version |= (uint16_t)b << 8; uuid.clock_seq_hi_and_reserved = hex_digits[16] << 4 | hex_digits[17]; uuid.clock_seq_low = hex_digits[18] << 4 | hex_digits[19]; for(size_t i = 0; i < 6; i++) { uuid.node[i] = hex_digits[20+(i*2)] << 4 | hex_digits[21+(i*2)]; } return true; } //9c4994e7-3c82-4c30-a459-8fdcd960b4ac std::string Uuid::ToString(UuidStringifyConfig cfg) const { bool hasCurly = ((int)cfg & (int)UuidStringifyConfig::HasCurly) != 0; bool isUppercase = ((int)cfg & (int)UuidStringifyConfig::IsUppercase) != 0; bool hasDash = ((int)cfg & (int)UuidStringifyConfig::HasDashes) != 0; std::string uuid_str = ""; if(hasCurly) uuid_str += "{"; uint8_t byte = (uint8_t)(this->time_low & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); byte = (uint8_t)((this->time_low >> 8) & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); byte = (uint8_t)((this->time_low >> 16) & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); byte = (uint8_t)((this->time_low >> 24) & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); if(hasDash) uuid_str += "-"; byte = (uint8_t)(this->time_mid & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); byte = (uint8_t)((this->time_mid >> 8) & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); if(hasDash) uuid_str += "-"; byte = (uint8_t)(this->time_hi_and_version & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); byte = (uint8_t)((this->time_hi_and_version >> 8) & 0xFF); uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); if(hasDash) uuid_str += "-"; uuid_str += Http::HttpUtils::NibbleToHex(this->clock_seq_hi_and_reserved>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(this->clock_seq_hi_and_reserved,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(this->clock_seq_low>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(this->clock_seq_low,isUppercase); if(hasDash) uuid_str += "-"; for(size_t i = 0; i < 6; i++) { byte = this->node[i]; uuid_str += Http::HttpUtils::NibbleToHex(byte>>4,isUppercase); uuid_str += Http::HttpUtils::NibbleToHex(byte,isUppercase); } if(hasCurly) uuid_str += "}"; return uuid_str; } bool Uuid::IsEmpty() const { return this->time_low == 0 && this->time_mid == 0 && this->time_hi_and_version == 0 && this->clock_seq_hi_and_reserved == 0 && this->clock_seq_low == 0 && this->node[0] == 0 && this->node[1] == 0 && this->node[2] == 0 && this->node[3] == 0 && this->node[4] == 0 && this->node[5] == 0; } bool operator==(const Uuid& left, const Uuid& right) { return left.time_low == right.time_low && left.time_mid == right.time_mid && left.time_hi_and_version == right.time_hi_and_version && left.clock_seq_hi_and_reserved == right.clock_seq_hi_and_reserved && left.clock_seq_low == right.clock_seq_low && left.node[0] == right.node[0] && left.node[1] == right.node[1] && left.node[2] == right.node[2] && left.node[3] == right.node[3] && left.node[4] == right.node[4] && left.node[5] == right.node[5]; } bool operator!=(const Uuid& left, const Uuid& right) { return left.time_low != right.time_low && left.time_mid != right.time_mid && left.time_hi_and_version != right.time_hi_and_version && left.clock_seq_hi_and_reserved != right.clock_seq_hi_and_reserved && left.clock_seq_low != right.clock_seq_low && left.node[0] != right.node[0] && left.node[1] != right.node[1] && left.node[2] != right.node[2] && left.node[3] != right.node[3] && left.node[4] != right.node[4] && left.node[5] != right.node[5]; } }