@caminojs-nikos/caminojs
Version:
Camino Platform JS Library
131 lines • 15.6 kB
JavaScript
;
/**
* @packageDocumentation
* @module API-EVM-Transactions
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Tx = exports.UnsignedTx = exports.SelectTxClass = void 0;
const buffer_1 = require("buffer/");
const bintools_1 = __importDefault(require("../../utils/bintools"));
const constants_1 = require("./constants");
const credentials_1 = require("./credentials");
const common_1 = require("../../common");
const create_hash_1 = __importDefault(require("create-hash"));
const importtx_1 = require("./importtx");
const exporttx_1 = require("./exporttx");
/**
* @ignore
*/
const bintools = bintools_1.default.getInstance();
/**
* Takes a buffer representing the output and returns the proper [[EVMBaseTx]] instance.
*
* @param txTypeID The id of the transaction type
*
* @returns An instance of an [[EVMBaseTx]]-extended class.
*/
const SelectTxClass = (txTypeID, ...args) => {
if (txTypeID === constants_1.EVMConstants.IMPORTTX) {
return new importtx_1.ImportTx(...args);
}
else if (txTypeID === constants_1.EVMConstants.EXPORTTX) {
return new exporttx_1.ExportTx(...args);
}
/* istanbul ignore next */
throw new Error("TransactionError - SelectTxClass: unknown txType");
};
exports.SelectTxClass = SelectTxClass;
class UnsignedTx extends common_1.EVMStandardUnsignedTx {
constructor() {
super(...arguments);
this._typeName = "UnsignedTx";
this._typeID = undefined;
}
//serialize is inherited
deserialize(fields, encoding = "hex") {
super.deserialize(fields, encoding);
this.transaction = (0, exports.SelectTxClass)(fields["transaction"]["_typeID"]);
this.transaction.deserialize(fields["transaction"], encoding);
}
getTransaction() {
return this.transaction;
}
fromBuffer(bytes, offset = 0) {
this.codecID = bintools.copyFrom(bytes, offset, offset + 2).readUInt16BE(0);
offset += 2;
const txtype = bintools
.copyFrom(bytes, offset, offset + 4)
.readUInt32BE(0);
offset += 4;
this.transaction = (0, exports.SelectTxClass)(txtype);
return this.transaction.fromBuffer(bytes, offset);
}
/**
* Signs this [[UnsignedTx]] and returns signed [[StandardTx]]
*
* @param kc An [[KeyChain]] used in signing
*
* @returns A signed [[StandardTx]]
*/
sign(kc) {
const txbuff = this.toBuffer();
const msg = buffer_1.Buffer.from((0, create_hash_1.default)("sha256").update(txbuff).digest());
const creds = kc instanceof common_1.MultisigKeyChain
? kc.getCredentials()
: this.transaction.sign(msg, kc);
return new Tx(this, creds);
}
}
exports.UnsignedTx = UnsignedTx;
class Tx extends common_1.EVMStandardTx {
constructor() {
super(...arguments);
this._typeName = "Tx";
this._typeID = undefined;
}
//serialize is inherited
deserialize(fields, encoding = "hex") {
super.deserialize(fields, encoding);
this.unsignedTx = new UnsignedTx();
this.unsignedTx.deserialize(fields["unsignedTx"], encoding);
this.credentials = [];
for (let i = 0; i < fields["credentials"].length; i++) {
const cred = (0, credentials_1.SelectCredentialClass)(fields["credentials"][`${i}`]["_typeID"]);
cred.deserialize(fields["credentials"][`${i}`], encoding);
this.credentials.push(cred);
}
}
/**
* Takes a {@link https://github.com/feross/buffer|Buffer} containing an [[Tx]], parses it,
* populates the class, and returns the length of the Tx in bytes.
*
* @param bytes A {@link https://github.com/feross/buffer|Buffer} containing a raw [[Tx]]
* @param offset A number representing the starting point of the bytes to begin parsing
*
* @returns The length of the raw [[Tx]]
*/
fromBuffer(bytes, offset = 0) {
this.unsignedTx = new UnsignedTx();
offset = this.unsignedTx.fromBuffer(bytes, offset);
const numcreds = bintools
.copyFrom(bytes, offset, offset + 4)
.readUInt32BE(0);
offset += 4;
this.credentials = [];
for (let i = 0; i < numcreds; i++) {
const credid = bintools
.copyFrom(bytes, offset, offset + 4)
.readUInt32BE(0);
offset += 4;
const cred = (0, credentials_1.SelectCredentialClass)(credid);
offset = cred.fromBuffer(bytes, offset);
this.credentials.push(cred);
}
return offset;
}
}
exports.Tx = Tx;
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SelectTxClass: unknown txType\")\n}\n\nexport class UnsignedTx extends EVMStandardUnsignedTx<\n  SignerKeyPair,\n  SignerKeyChain,\n  EVMBaseTx\n> {\n  protected _typeName = \"UnsignedTx\"\n  protected _typeID = undefined\n\n  //serialize is inherited\n\n  deserialize(fields: object, encoding: SerializedEncoding = \"hex\") {\n    super.deserialize(fields, encoding)\n    this.transaction = SelectTxClass(fields[\"transaction\"][\"_typeID\"])\n    this.transaction.deserialize(fields[\"transaction\"], encoding)\n  }\n\n  getTransaction(): EVMBaseTx {\n    return this.transaction as EVMBaseTx\n  }\n\n  fromBuffer(bytes: Buffer, offset: number = 0): number {\n    this.codecID = bintools.copyFrom(bytes, offset, offset + 2).readUInt16BE(0)\n    offset += 2\n    const txtype: number = bintools\n      .copyFrom(bytes, offset, offset + 4)\n      .readUInt32BE(0)\n    offset += 4\n    this.transaction = SelectTxClass(txtype)\n    return this.transaction.fromBuffer(bytes, offset)\n  }\n\n  /**\n   * Signs this [[UnsignedTx]] and returns signed [[StandardTx]]\n   *\n   * @param kc An [[KeyChain]] used in signing\n   *\n   * @returns A signed [[StandardTx]]\n   */\n  sign(kc: SignerKeyChain): Tx {\n    const txbuff: Buffer = this.toBuffer()\n    const msg: Buffer = Buffer.from(\n      createHash(\"sha256\").update(txbuff).digest()\n    )\n    const creds: Credential[] =\n      kc instanceof MultisigKeyChain\n        ? kc.getCredentials()\n        : this.transaction.sign(msg, kc)\n    return new Tx(this, creds)\n  }\n}\n\nexport class Tx extends EVMStandardTx<\n  SignerKeyPair,\n  SignerKeyChain,\n  UnsignedTx\n> {\n  protected _typeName = \"Tx\"\n  protected _typeID = undefined\n\n  //serialize is inherited\n\n  deserialize(fields: object, encoding: SerializedEncoding = \"hex\") {\n    super.deserialize(fields, encoding)\n    this.unsignedTx = new UnsignedTx()\n    this.unsignedTx.deserialize(fields[\"unsignedTx\"], encoding)\n    this.credentials = []\n    for (let i: number = 0; i < fields[\"credentials\"].length; i++) {\n      const cred: Credential = SelectCredentialClass(\n        fields[\"credentials\"][`${i}`][\"_typeID\"]\n      )\n      cred.deserialize(fields[\"credentials\"][`${i}`], encoding)\n      this.credentials.push(cred)\n    }\n  }\n\n  /**\n   * Takes a {@link https://github.com/feross/buffer|Buffer} containing an [[Tx]], parses it,\n   * populates the class, and returns the length of the Tx in bytes.\n   *\n   * @param bytes A {@link https://github.com/feross/buffer|Buffer} containing a raw [[Tx]]\n   * @param offset A number representing the starting point of the bytes to begin parsing\n   *\n   * @returns The length of the raw [[Tx]]\n   */\n  fromBuffer(bytes: Buffer, offset: number = 0): number {\n    this.unsignedTx = new UnsignedTx()\n    offset = this.unsignedTx.fromBuffer(bytes, offset)\n    const numcreds: number = bintools\n      .copyFrom(bytes, offset, offset + 4)\n      .readUInt32BE(0)\n    offset += 4\n    this.credentials = []\n    for (let i: number = 0; i < numcreds; i++) {\n      const credid: number = bintools\n        .copyFrom(bytes, offset, offset + 4)\n        .readUInt32BE(0)\n      offset += 4\n      const cred: Credential = SelectCredentialClass(credid)\n      offset = cred.fromBuffer(bytes, offset)\n      this.credentials.push(cred)\n    }\n    return offset\n  }\n}\n"]}