258 lines
6.8 KiB
C++
258 lines
6.8 KiB
C++
#ifndef MODEL_HPP
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#define MODEL_HPP
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#include <chrono>
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#include <memory>
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#include <optional>
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#include <string>
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#include "crow/json.h"
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#include "tl/expected.hpp"
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#include "big_int.hpp"
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struct PublicKey {
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BigInt modulus; //: "daaa63ddda38c189b8c49020c8276adbe0a695685a...",
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BigInt public_exponent;//: 65537,
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crow::json::wvalue to_json() const;
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};
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struct WeightedUrl {
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uint32_t weight;
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std::string url;
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crow::json::wvalue to_json() const;
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};
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/** currency description document */
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struct CDD {
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std::string additional_info;
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time_t cdd_expiry_date;//: 2023-07-22T15:45:53.164685
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std::string cdd_location;//: https://opencent.org,
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size_t cdd_serial;//: 1,
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time_t cdd_signing_date;//: 2022-07-22T15:45:53.164685,
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size_t currency_divisor;//: 100,
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std::string currency_name;//: OpenCent,
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std::vector<unsigned> denominations;//: [1, 2, 5],
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BigInt id;//: 23ed956e629ba35f0002eaf833ea436aea7db5c2,
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std::vector<WeightedUrl> info_service;
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/* eCipherSuite*/ std::string issuer_cipher_suite; //: RSA-SHA256-PSS-CHAUM82,
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PublicKey
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issuer_public_master_key; //: {
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// modulus:
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// daaa63ddda38c189b8c49020c8276adbe0a695685a...,
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// public_exponent: 65537,
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// type: rsa public key
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//},
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std::vector<WeightedUrl> mint_service;
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std::string protocol_version; //: https://opencoin.org/1.0,
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std::vector<WeightedUrl> redeem_service;
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std::vector<WeightedUrl> renew_service;
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crow::json::wvalue to_json() const;
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};
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struct CDDC {
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CDD cdd;
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std::string signature;
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crow::json::wvalue to_json() const;
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};
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struct MintKey {
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unsigned int cdd_serial;
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std::string coins_expiry_date; //": "2023-10-30T15:45:53.164685",
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unsigned int denomination; //": 1,
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BigInt id; // "1ceb977bb531c65f133ab8b0d60862b17369d96",
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BigInt issuer_id; //": "23ed956e629ba35f0002eaf833ea436aea7db5c2",
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PublicKey public_mint_key;
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std::string sign_coins_not_after;
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std::string sign_coins_not_before;
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// "type": "mint key"
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crow::json::wvalue to_json() const;
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};
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struct MintKeyCert {
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MintKey mint_key;
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std::string signature;
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crow::json::wvalue to_json() const;
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};
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enum class eError {
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JSON_PARSE_ERROR,
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JSON_MISSING_KEY,
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JSON_WRONG_REQUEST_TYPE,
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JSON_WRONG_VALUE_TYPE,
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JSON_ERROR,
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NOT_IMPLEMENTED
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};
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struct Response {
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unsigned int message_reference;
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unsigned int status_code;
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std::string status_description;
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virtual crow::json::wvalue to_json() const;
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};
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struct RequestCDDCSerial {
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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static tl::expected<RequestCDDCSerial, eError>
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from_string(const std::string &str);
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};
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struct ResponseCDDCSerial : Response {
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unsigned int cdd_serial;
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crow::json::wvalue to_json() const override;
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};
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struct RequestCDDC {
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unsigned int cdd_serial; /// The version of the CDD. (Int)
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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static tl::expected<RequestCDDC, eError> from_string(const std::string &str);
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};
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struct ResponseCDDC : Response {
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CDDC cddc;
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crow::json::wvalue to_json() const override;
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};
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struct RequestMKCs {
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std::vector<unsigned int> denominations;
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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std::vector<BigInt> mint_key_ids;
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// "type": "request mint key certificates"
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static tl::expected<RequestMKCs, eError> from_string(const std::string &str);
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};
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struct ResponseMKCs : Response {
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std::vector<MintKeyCert> keys;
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crow::json::wvalue to_json() const override;
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};
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struct Blind {
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BigInt blinded_payload_hash; //bigint
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BigInt mint_key_id; //bigint
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std::string reference;
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crow::json::wvalue to_json() const;
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static tl::expected<Blind, eError> from_json(const crow::json::rvalue &json);
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};
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struct BlindSignature {
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BigInt blind_signature;
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std::string reference;
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crow::json::wvalue to_json() const;
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};
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struct RequestMint {
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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BigInt transaction_reference;
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std::vector<Blind> blinds;
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// "type": "request mint"
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static tl::expected<RequestMint, eError> from_string(const std::string &str);
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};
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struct ResponseMint : Response {
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std::vector<BlindSignature> blind_signatures;
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crow::json::wvalue to_json() const override;
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};
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struct Coin {
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struct Payload {
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std::string cdd_location;
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unsigned int denomination;
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BigInt issuer_id;
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BigInt mint_key_id;
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std::string protocol_version;
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BigInt serial;
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crow::json::wvalue to_json() const;
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static tl::expected<Payload,eError> from_json(const crow::json::rvalue& json);
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};
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Payload payload;
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std::string signature;
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crow::json::wvalue to_json() const;
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static tl::expected<Coin, eError> from_json(const crow::json::rvalue &json);
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};
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struct CoinStack {
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std::vector<Coin> coins;
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std::string subject;
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// "type": "coinstack"
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crow::json::wvalue to_json() const;
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};
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struct RequestRenew {
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std::vector<Blind> blinds;
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std::vector<Coin> coins;
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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std::string transaction_reference;
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// "type": "request renew"
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static tl::expected<RequestRenew, eError> from_string(const std::string &str);
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};
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struct ResponseDelay : Response {
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crow::json::wvalue to_json() const override;
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};
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struct RequestResume {
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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BigInt transaction_reference;
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// "type": "request resume"
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static tl::expected<RequestResume, eError>
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from_string(const std::string &str);
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};
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struct RequestRedeem {
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std::vector<Coin> coins;
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unsigned int message_reference; /// Client internal message reference.
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/// (Integer)
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// "type": "request redeem"
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static tl::expected<RequestRedeem, eError>
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from_string(const std::string &str);
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};
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struct ResponseRedeem : Response {
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crow::json::wvalue to_json() const override;
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};
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class Model {
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public:
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virtual ~Model(){};
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virtual tl::expected<CDDC *, bool> getCDDC(unsigned int cdd_serial) = 0;
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virtual tl::expected<CDDC *, bool> getCurrentCDDC() = 0;
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virtual const std::vector<MintKeyCert>
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getMKCs(const std::vector<unsigned int> &denominations,
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const std::vector<BigInt> &mint_key_ids) = 0;
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virtual std::vector<BlindSignature>
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mint(std::string const& transaction_reference,
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const std::vector<Blind> &blinds) = 0;
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virtual bool redeem(const std::vector<Coin> &coins) = 0;
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static std::unique_ptr<Model> getModel(const std::string &backend_name);
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private:
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};
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#endif // #ifndef MODEL_HPP
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