@biconomy/permission-context-builder/dist/_cjs/src/utils/methods.js

ERC-7715 Permission Context Builder utility package.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getSignerType = exports.decodeDIDToPublicKey = exports.KEY_TYPES = exports.encodeSecp256k1PublicKeyToDID = void 0;
exports.encodeSigners = encodeSigners;
exports.bigIntReplacer = bigIntReplacer;
const bs58_1 = require("bs58");
const viem_1 = require("viem");
const signers_1 = require("../types/signers.js");
const encodeSecp256k1PublicKeyToDID = (publicKey) => {
    publicKey = publicKey.startsWith('0x') ? publicKey.slice(2) : publicKey;
    const publicKeyBuffer = Buffer.from(publicKey, 'hex');
    const encodedPublicKey = bs58_1.default.encode(publicKeyBuffer);
    return `did:key:zQ3s${encodedPublicKey}`;
};
exports.encodeSecp256k1PublicKeyToDID = encodeSecp256k1PublicKeyToDID;
function encodeSigners(signers) {
    let encoded = (0, viem_1.encodePacked)(['uint8'], [signers.length]);
    for (const signer of signers) {
        encoded = (0, viem_1.encodePacked)(['bytes', 'uint8', 'bytes'], [encoded, signer.type, signer.data]);
    }
    return encoded;
}
var KEY_TYPES;
(function (KEY_TYPES) {
    KEY_TYPES["secp256k1"] = "secp256k1";
    KEY_TYPES["secp256r1"] = "secp256r1";
})(KEY_TYPES || (exports.KEY_TYPES = KEY_TYPES = {}));
const decodeDIDToPublicKey = (did) => {
    const didPrefixToKeyType = {
        'did:key:zQ3s': KEY_TYPES.secp256k1,
        'did:key:zDn': KEY_TYPES.secp256r1
    };
    const matchingPrefix = Object.keys(didPrefixToKeyType).find(prefix => did.startsWith(prefix));
    if (!matchingPrefix) {
        throw new Error('Invalid DID format. Unsupported key type.');
    }
    const encodedPart = did.slice(matchingPrefix.length);
    const decodedBuffer = bs58_1.default.decode(encodedPart);
    const publicKey = Buffer.from(decodedBuffer).toString('hex');
    const formattedPublicKey = `0x${publicKey}`;
    const keyType = didPrefixToKeyType[matchingPrefix];
    return {
        key: formattedPublicKey,
        keyType
    };
};
exports.decodeDIDToPublicKey = decodeDIDToPublicKey;
const getSignerType = (keyType) => {
    switch (keyType) {
        case KEY_TYPES.secp256k1:
            return signers_1.SignerType.EOA;
        case KEY_TYPES.secp256r1:
            return signers_1.SignerType.PASSKEY;
        default:
            return signers_1.SignerType.EOA;
    }
};
exports.getSignerType = getSignerType;
function bigIntReplacer(_key, value) {
    if (typeof value === 'bigint') {
        return value.toString();
    }
    return value;
}
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