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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@bitgo/sdk-coin-ada/dist/src/lib/messages/cip8
Просмотр файла: cip8Message.js
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Cip8Message = void 0;
const sdk_core_1 = require("@bitgo/sdk-core");
const CardanoSL = __importStar(require("@emurgo/cardano-serialization-lib-nodejs"));
const utils_1 = require("./utils");
/**
* Implementation of Message for CIP8 standard
*/
class Cip8Message extends sdk_core_1.BaseMessage {
constructor(options) {
super({
...options,
type: sdk_core_1.MessageStandardType.CIP8,
});
}
/**
* Returns the hash of the CIP-8 prefixed message
*/
async getSignablePayload() {
const { addressCborBytes } = this.validateAndGetCommonSetup();
const { sigStructureCborBytes } = (0, utils_1.createCSLSigStructure)(addressCborBytes, this.payload);
this.signablePayload = Buffer.from(sigStructureCborBytes);
return this.signablePayload;
}
/*
* Returns broadcastable signatures in COSE format according to CIP8 standard
*
* This method transforms the internal signatures into a format suitable for broadcasting
* by constructing COSE (CBOR Object Signing and Encryption) objects that comply with
* the CIP8 message signing specification.
*
* @returns Array of signatures with COSE-formatted signature data and public keys
* @throws Error if required setup validation fails
*/
getBroadcastableSignatures() {
if (!this.signatures.length) {
return [];
}
const signature = this.signatures[0].signature;
const publicKeyHex = this.signatures[0].publicKey.pub;
const { addressCborBytes } = this.validateAndGetCommonSetup();
const { protectedHeaderCborBytes, payloadBytes } = (0, utils_1.createCSLSigStructure)(addressCborBytes, this.payload);
const coseObjectsOutput = (0, utils_1.constructCSLCoseObjects)(protectedHeaderCborBytes, payloadBytes, signature, CardanoSL.PublicKey.from_bytes(Buffer.from(publicKeyHex, 'hex')));
const coseObjectsBuffer = (0, utils_1.coseObjectsOutputToBuffer)(coseObjectsOutput);
return [
{
signature: coseObjectsBuffer,
publicKey: {
pub: publicKeyHex,
},
},
];
}
/**
* Verifies the encoded payload against the provided metadata
* @param messageEncodedHex The hex-encoded message to verify
* @param metadata Metadata containing signer addresses
* @returns True if the encoded payload matches the expected format, false otherwise
*/
async verifyEncodedPayload(messageEncodedHex, metadata) {
if (!metadata) {
throw new Error('Metadata is required for verifying the encoded payload');
}
const signers = metadata.signers;
if (signers.length === 0) {
throw new Error('At least one signer address is required in metadata for verification');
}
this.addSigner(signers[0]);
const signablePayload = await this.getSignablePayload();
let signablePayloadHex;
if (Buffer.isBuffer(signablePayload)) {
signablePayloadHex = signablePayload.toString('hex');
}
else {
signablePayloadHex = signablePayload;
}
return signablePayloadHex === messageEncodedHex;
}
/**
* Validates required fields and returns common setup objects
* @private
*/
validateAndGetCommonSetup() {
if (!this.payload) {
throw new Error('Payload is required to build a CIP8 message');
}
if (!this.signers || this.signers.length === 0) {
throw new Error('A signer address is required to build a CIP8 message');
}
let cslAddress;
try {
cslAddress = CardanoSL.Address.from_bech32(this.signers[0]);
}
catch (error) {
// Convert string errors to proper Error objects
if (typeof error === 'string') {
throw new Error(`Invalid signer address: ${error}`);
}
throw error;
}
const addressCborBytes = cslAddress.to_bytes();
return { addressCborBytes };
}
}
exports.Cip8Message = Cip8Message;
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{ BaseMessage, MessageOptions, MessageStandardType, Signature } from '@bitgo/sdk-core';\nimport * as CardanoSL from '@emurgo/cardano-serialization-lib-nodejs';\nimport { constructCSLCoseObjects, coseObjectsOutputToBuffer, createCSLSigStructure } from './utils';\n\n/**\n * Implementation of Message for CIP8 standard\n */\nexport class Cip8Message extends BaseMessage {\n  constructor(options: MessageOptions) {\n    super({\n      ...options,\n      type: MessageStandardType.CIP8,\n    });\n  }\n\n  /**\n   * Returns the hash of the CIP-8 prefixed message\n   */\n  async getSignablePayload(): Promise<string | Buffer> {\n    const { addressCborBytes } = this.validateAndGetCommonSetup();\n    const { sigStructureCborBytes } = createCSLSigStructure(addressCborBytes, this.payload);\n    this.signablePayload = Buffer.from(sigStructureCborBytes);\n    return this.signablePayload;\n  }\n\n  /*\n   * Returns broadcastable signatures in COSE format according to CIP8 standard\n   *\n   * This method transforms the internal signatures into a format suitable for broadcasting\n   * by constructing COSE (CBOR Object Signing and Encryption) objects that comply with\n   * the CIP8 message signing specification.\n   *\n   * @returns Array of signatures with COSE-formatted signature data and public keys\n   * @throws Error if required setup validation fails\n   */\n  getBroadcastableSignatures(): Signature[] {\n    if (!this.signatures.length) {\n      return [];\n    }\n\n    const signature = this.signatures[0].signature;\n    const publicKeyHex = this.signatures[0].publicKey.pub;\n\n    const { addressCborBytes } = this.validateAndGetCommonSetup();\n    const { protectedHeaderCborBytes, payloadBytes } = createCSLSigStructure(addressCborBytes, this.payload);\n\n    const coseObjectsOutput = constructCSLCoseObjects(\n      protectedHeaderCborBytes,\n      payloadBytes,\n      signature,\n      CardanoSL.PublicKey.from_bytes(Buffer.from(publicKeyHex, 'hex'))\n    );\n    const coseObjectsBuffer = coseObjectsOutputToBuffer(coseObjectsOutput);\n    return [\n      {\n        signature: coseObjectsBuffer,\n        publicKey: {\n          pub: publicKeyHex,\n        },\n      },\n    ];\n  }\n\n  /**\n   * Verifies the encoded payload against the provided metadata\n   * @param messageEncodedHex The hex-encoded message to verify\n   * @param metadata Metadata containing signer addresses\n   * @returns True if the encoded payload matches the expected format, false otherwise\n   */\n  async verifyEncodedPayload(messageEncodedHex: string, metadata?: Record<string, unknown>): Promise<boolean> {\n    if (!metadata) {\n      throw new Error('Metadata is required for verifying the encoded payload');\n    }\n    const signers = metadata.signers as string[];\n    if (signers.length === 0) {\n      throw new Error('At least one signer address is required in metadata for verification');\n    }\n    this.addSigner(signers[0]);\n    const signablePayload = await this.getSignablePayload();\n    let signablePayloadHex: string;\n    if (Buffer.isBuffer(signablePayload)) {\n      signablePayloadHex = signablePayload.toString('hex');\n    } else {\n      signablePayloadHex = signablePayload;\n    }\n    return signablePayloadHex === messageEncodedHex;\n  }\n\n  /**\n   * Validates required fields and returns common setup objects\n   * @private\n   */\n  private validateAndGetCommonSetup() {\n    if (!this.payload) {\n      throw new Error('Payload is required to build a CIP8 message');\n    }\n    if (!this.signers || this.signers.length === 0) {\n      throw new Error('A signer address is required to build a CIP8 message');\n    }\n\n    let cslAddress: CardanoSL.Address;\n    try {\n      cslAddress = CardanoSL.Address.from_bech32(this.signers[0]);\n    } catch (error) {\n      // Convert string errors to proper Error objects\n      if (typeof error === 'string') {\n        throw new Error(`Invalid signer address: ${error}`);\n      }\n      throw error;\n    }\n\n    const addressCborBytes = cslAddress.to_bytes();\n    return { addressCborBytes };\n  }\n}\n"]}Выполнить команду
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