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Add Uuids

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This commit is contained in:
Mike Nolan
2026-02-15 13:28:06 -06:00
parent adf11bd144
commit 61275c0f5f
16 changed files with 509 additions and 19 deletions
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169
src/Uuid.cpp Normal file
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#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<uint8_t> 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<uint8_t,32> 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)
{
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;
}
}