@ceramicnetwork/blockchain-utils-linking/lib/solana.js

Blockchain utils for linking blockchain accounts to DID

import { AccountId } from 'caip';
import { asOldCaipString, getConsentMessage } from './util.js';
import * as uint8arrays from 'uint8arrays';
import * as sha256 from '@stablelib/sha256';
export const SOLANA_TESTNET_CHAIN_REF = '4uhcVJyU9pJkvQyS88uRDiswHXSCkY3z';
export const SOLANA_DEVNET_CHAIN_REF = 'EtWTRABZaYq6iMfeYKouRu166VU2xqa1';
export const SOLANA_MAINNET_CHAIN_REF = '5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp';
export class SolanaAuthProvider {
    constructor(provider, address, chainRef) {
        this.provider = provider;
        this.address = address;
        this.chainRef = chainRef;
        this.isAuthProvider = true;
        console.warn('WARN: SolanaAuthProvider is not fully supported. You may encounter issues using this.');
    }
    async accountId() {
        return new AccountId({
            address: this.address,
            chainId: `solana:${this.chainRef}`,
        });
    }
    async authenticate(message) {
        if (!this.provider.signMessage) {
            throw new Error(`Unsupported provider; provider must implement signMessage`);
        }
        const signatureBytes = await this.provider.signMessage(uint8arrays.fromString(message));
        const digest = sha256.hash(signatureBytes);
        return `0x${uint8arrays.toString(digest, 'base16')}`;
    }
    async createLink(did) {
        if (!this.provider.signMessage) {
            throw new Error(`Unsupported provider; provider must implement signMessage`);
        }
        const { message, timestamp } = getConsentMessage(did, true);
        const accountID = await this.accountId();
        const signatureBytes = await this.provider.signMessage(uint8arrays.fromString(message));
        const signature = uint8arrays.toString(signatureBytes, 'base64');
        return {
            version: 2,
            type: 'solana',
            message,
            signature,
            account: asOldCaipString(accountID),
            timestamp,
        };
    }
    withAddress(address) {
        return new SolanaAuthProvider(this.provider, address, this.chainRef);
    }
}
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