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import { deserializePublicKey, isCompressed, serializePublicKey, StacksPublicKey } from './keys';
import { rightPadHexToLength } from './common/utils';
import { deserializePayload, Payload, serializePayload } from './payload';
import {
deserializeMessageSignature,
deserializeTransactionAuthField,
MessageSignature,
serializeMessageSignature,
serializeTransactionAuthField,
TransactionAuthField,
} from './authorization';
import {
BufferArray,
BufferReader,
bytesToHex,
bytesToUtf8,
DeserializationError,
hexStringToInt,
hexToBytes,
intToHexString,
TransactionVersion,
utf8ToBytes,
} from 'micro-stacks/common';
import {
hashP2PKH,
hashP2SH,
hashP2WPKH,
hashP2WSH,
StacksNetworkVersion,
} from 'micro-stacks/crypto';
import { deserializePostCondition, PostCondition, serializePostCondition } from './postcondition';
import {
Address,
AssetInfo,
ContractPrincipal,
createAddress,
createLPString,
deserializeAddress,
deserializeLPString,
exceedsMaxLengthBytes,
LengthPrefixedString,
MEMO_MAX_LENGTH_BYTES,
PostConditionPrincipal,
PostConditionPrincipalID,
serializeAddress,
serializeLPString,
StacksMessageType,
StandardPrincipal,
} from 'micro-stacks/clarity';
export type StacksMessage =
| Address
| PostConditionPrincipal
| LengthPrefixedString
| LengthPrefixedList
| Payload
| MemoString
| AssetInfo
| PostCondition
| StacksPublicKey
| TransactionAuthField
| MessageSignature;
export function serializeStacksMessage(message: StacksMessage): Uint8Array {
switch (message.type) {
case StacksMessageType.Address:
return serializeAddress(message);
case StacksMessageType.Principal:
return serializePrincipal(message);
case StacksMessageType.LengthPrefixedString:
return serializeLPString(message);
case StacksMessageType.MemoString:
return serializeMemoString(message);
case StacksMessageType.AssetInfo:
return serializeAssetInfo(message);
case StacksMessageType.PostCondition:
return serializePostCondition(message);
case StacksMessageType.PublicKey:
return serializePublicKey(message);
case StacksMessageType.LengthPrefixedList:
return serializeLPList(message);
case StacksMessageType.Payload:
return serializePayload(message);
case StacksMessageType.TransactionAuthField:
return serializeTransactionAuthField(message);
case StacksMessageType.MessageSignature:
return serializeMessageSignature(message);
}
}
export function deserializeStacksMessage(
bufferReader: BufferReader,
type: StacksMessageType,
listType?: StacksMessageType
): StacksMessage {
switch (type) {
case StacksMessageType.Address:
return deserializeAddress(bufferReader);
case StacksMessageType.Principal:
return deserializePrincipal(bufferReader);
case StacksMessageType.LengthPrefixedString:
return deserializeLPString(bufferReader);
case StacksMessageType.MemoString:
return deserializeMemoString(bufferReader);
case StacksMessageType.AssetInfo:
return deserializeAssetInfo(bufferReader);
case StacksMessageType.PostCondition:
return deserializePostCondition(bufferReader);
case StacksMessageType.PublicKey:
return deserializePublicKey(bufferReader);
case StacksMessageType.Payload:
return deserializePayload(bufferReader);
case StacksMessageType.LengthPrefixedList:
Iif (!listType) {
throw new DeserializationError('No List Type specified');
}
return deserializeLPList(bufferReader, listType);
case StacksMessageType.MessageSignature:
return deserializeMessageSignature(bufferReader);
default:
throw new Error('Could not recognize StacksMessageType');
}
}
export function createEmptyAddress(): Address {
return {
type: StacksMessageType.Address,
version: StacksNetworkVersion.mainnetP2PKH,
hash160: '0'.repeat(40),
};
}
export function addressFromVersionHash(version: StacksNetworkVersion, hash: string): Address {
return { type: StacksMessageType.Address, version, hash160: hash };
}
/**
* Translates the tx auth hash mode to the corresponding address version.
* @see https://github.com/blockstack/stacks-blockchain/blob/master/sip/sip-005-blocks-and-transactions.md#transaction-authorization
*/
export function addressHashModeToVersion(
hashMode: AddressHashMode,
txVersion: TransactionVersion
): StacksNetworkVersion {
switch (hashMode) {
case AddressHashMode.SerializeP2PKH:
switch (txVersion) {
case TransactionVersion.Mainnet:
return StacksNetworkVersion.mainnetP2PKH;
case TransactionVersion.Testnet:
return StacksNetworkVersion.testnetP2PKH;
default:
throw new Error(
`Unexpected txVersion ${JSON.stringify(txVersion)} for hashMode ${hashMode}`
);
}
case AddressHashMode.SerializeP2SH:
case AddressHashMode.SerializeP2WPKH:
case AddressHashMode.SerializeP2WSH:
switch (txVersion) {
case TransactionVersion.Mainnet:
return StacksNetworkVersion.mainnetP2SH;
case TransactionVersion.Testnet:
return StacksNetworkVersion.testnetP2SH;
default:
throw new Error(
`Unexpected txVersion ${JSON.stringify(txVersion)} for hashMode ${hashMode}`
);
}
default:
throw new Error(`Unexpected hashMode ${JSON.stringify(hashMode)}`);
}
}
export function addressFromHashMode(
hashMode: AddressHashMode,
txVersion: TransactionVersion,
data: string
): Address {
const version = addressHashModeToVersion(hashMode, txVersion);
return addressFromVersionHash(version, data);
}
export function addressFromPublicKeys(
version: StacksNetworkVersion,
hashMode: AddressHashMode,
numSigs: number,
publicKeys: StacksPublicKey[]
): Address {
Iif (publicKeys.length === 0) {
throw Error('Invalid number of public keys');
}
if (hashMode === AddressHashMode.SerializeP2PKH || hashMode === AddressHashMode.SerializeP2WPKH) {
Iif (publicKeys.length !== 1 || numSigs !== 1) {
throw Error('Invalid number of public keys or signatures');
}
}
if (hashMode === AddressHashMode.SerializeP2WPKH || hashMode === AddressHashMode.SerializeP2WSH) {
for (let i = 0; i < publicKeys.length; i++) {
Iif (!isCompressed(publicKeys[i])) {
throw Error('Public keys must be compressed for segwit');
}
}
}
switch (hashMode) {
case AddressHashMode.SerializeP2PKH:
return addressFromVersionHash(version, hashP2PKH(publicKeys[0].data));
case AddressHashMode.SerializeP2WPKH:
return addressFromVersionHash(version, hashP2WPKH(publicKeys[0].data));
case AddressHashMode.SerializeP2SH:
return addressFromVersionHash(version, hashP2SH(numSigs, publicKeys.map(serializePublicKey)));
case AddressHashMode.SerializeP2WSH:
return addressFromVersionHash(
version,
hashP2WSH(numSigs, publicKeys.map(serializePublicKey))
);
}
}
/**
* Parses a principal string for either a standard principal or contract principal.
* @param principalString - String in the format `{address}.{contractName}`
* @example "SP13N5TE1FBBGRZD1FCM49QDGN32WAXM2E5F8WT2G.example-contract"
* @example "SP13N5TE1FBBGRZD1FCM49QDGN32WAXM2E5F8WT2G"
*/
export function parsePrincipalString(
principalString: string
): StandardPrincipal | ContractPrincipal {
if (principalString.includes('.')) {
const [address, contractName] = principalString.split('.');
return createContractPrincipal(address, contractName);
} else E{
return createStandardPrincipal(principalString);
}
}
export function createStandardPrincipal(addressString: string): StandardPrincipal {
return {
type: StacksMessageType.Principal,
prefix: PostConditionPrincipalID.Standard,
address: createAddress(addressString),
};
}
export function createContractPrincipal(
addressString: string,
contractName: string
): ContractPrincipal {
return {
type: StacksMessageType.Principal,
prefix: PostConditionPrincipalID.Contract,
contractName: createLPString(contractName),
address: createAddress(addressString),
};
}
export function serializePrincipal(principal: PostConditionPrincipal): Uint8Array {
const bufferArray: BufferArray = new BufferArray();
bufferArray.push(Uint8Array.from([principal.prefix]));
bufferArray.push(serializeAddress(principal.address));
if (principal.prefix === PostConditionPrincipalID.Contract) {
bufferArray.push(serializeLPString(principal.contractName));
}
return bufferArray.concatBuffer();
}
export function deserializePrincipal(bufferReader: BufferReader): PostConditionPrincipal {
const prefix = bufferReader.readUInt8Enum(PostConditionPrincipalID, _ => {
throw new DeserializationError('Unexpected Principal payload type: ${n}');
});
const address = deserializeAddress(bufferReader);
if (prefix === PostConditionPrincipalID.Standard) {
return { type: StacksMessageType.Principal, prefix, address } as StandardPrincipal;
}
const contractName = deserializeLPString(bufferReader);
return {
type: StacksMessageType.Principal,
prefix,
address,
contractName,
} as ContractPrincipal;
}
export function codeBodyString(content: string): LengthPrefixedString {
return createLPString(content, 4, 100000);
}
export interface MemoString {
readonly type: StacksMessageType.MemoString;
readonly content: string;
}
export function createMemoString(content: string): MemoString {
Iif (content && exceedsMaxLengthBytes(content, MEMO_MAX_LENGTH_BYTES)) {
throw new Error(`Memo exceeds maximum length of ${MEMO_MAX_LENGTH_BYTES.toString()} bytes`);
}
return { type: StacksMessageType.MemoString, content };
}
export function serializeMemoString(memoString: MemoString): Uint8Array {
const bufferArray: BufferArray = new BufferArray();
const contentBuffer = utf8ToBytes(memoString.content);
const paddedContent = rightPadHexToLength(bytesToHex(contentBuffer), MEMO_MAX_LENGTH_BYTES * 2);
bufferArray.push(hexToBytes(paddedContent));
return bufferArray.concatBuffer();
}
export function deserializeMemoString(bufferReader: BufferReader): MemoString {
const buff = bufferReader.readBuffer(MEMO_MAX_LENGTH_BYTES);
const indexOfEmpty = buff.indexOf(0x00);
const content = bytesToUtf8(buff.slice(0, indexOfEmpty));
return { type: StacksMessageType.MemoString, content };
}
/**
* Parse a fully qualified string that identifies the token type.
* @param id - String in the format `{address}.{contractName}::{assetName}`
* @example "SP13N5TE1FBBGRZD1FCM49QDGN32WAXM2E5F8WT2G.example-contract::example-token"
*/
export function parseAssetInfoString(id: string): AssetInfo {
const [assetAddress, assetContractName, assetTokenName] = id.split(/\.|::/);
return createAssetInfo(assetAddress, assetContractName, assetTokenName);
}
export function createAssetInfo(
addressString: string,
contractName: string,
assetName: string
): AssetInfo {
return {
type: StacksMessageType.AssetInfo,
address: createAddress(addressString),
contractName: createLPString(contractName),
assetName: createLPString(assetName),
};
}
export function serializeAssetInfo(info: AssetInfo): Uint8Array {
const bufferArray: BufferArray = new BufferArray();
bufferArray.push(serializeAddress(info.address));
bufferArray.push(serializeLPString(info.contractName));
bufferArray.push(serializeLPString(info.assetName));
return bufferArray.concatBuffer();
}
export function deserializeAssetInfo(bufferReader: BufferReader): AssetInfo {
return {
type: StacksMessageType.AssetInfo,
address: deserializeAddress(bufferReader),
contractName: deserializeLPString(bufferReader),
assetName: deserializeLPString(bufferReader),
};
}
export interface LengthPrefixedList {
readonly type: StacksMessageType.LengthPrefixedList;
readonly lengthPrefixBytes: number;
readonly values: StacksMessage[];
}
export function createLPList<T extends StacksMessage>(
values: T[],
lengthPrefixBytes?: number
): LengthPrefixedList {
return {
type: StacksMessageType.LengthPrefixedList,
lengthPrefixBytes: lengthPrefixBytes || 4,
values,
};
}
export function serializeLPList(lpList: LengthPrefixedList): Uint8Array {
const list = lpList.values;
const bufferArray: BufferArray = new BufferArray();
bufferArray.appendHexString(intToHexString(list.length, lpList.lengthPrefixBytes));
for (let index = 0; index < list.length; index++) {
bufferArray.push(serializeStacksMessage(list[index]));
}
return bufferArray.concatBuffer();
}
export function deserializeLPList(
bufferReader: BufferReader,
type: StacksMessageType,
lengthPrefixBytes?: number
): LengthPrefixedList {
const length = hexStringToInt(bytesToHex(bufferReader.readBuffer(lengthPrefixBytes || 4)));
const l: StacksMessage[] = [];
for (let index = 0; index < length; index++) {
switch (type) {
case StacksMessageType.Address:
l.push(deserializeAddress(bufferReader));
break;
case StacksMessageType.LengthPrefixedString:
l.push(deserializeLPString(bufferReader));
break;
case StacksMessageType.MemoString:
l.push(deserializeMemoString(bufferReader));
break;
case StacksMessageType.AssetInfo:
l.push(deserializeAssetInfo(bufferReader));
break;
case StacksMessageType.PostCondition:
l.push(deserializePostCondition(bufferReader));
break;
case StacksMessageType.PublicKey:
l.push(deserializePublicKey(bufferReader));
break;
case StacksMessageType.TransactionAuthField:
l.push(deserializeTransactionAuthField(bufferReader));
break;
}
}
return createLPList(l, lengthPrefixBytes);
}
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