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const { isValidPublicKey } = require('./eos');
const { ChainAction, composeAction } = require('./compose');
const ACCOUNT_NAME_MAX_LENGTH = 12;
const BASE = 31; // Base 31 allows us to leave out '.', as it's used for account scope
/* Private */
// gets the input values(blocksToCheck, checkInterval, getBlockAttempts) required for the awaitTranaction method
function getAwaitTransactionOptions(options) {
const awaitTransactionOptions = {};
({ blocksToCheck: awaitTransactionOptions.blocksToCheck, checkInterval: awaitTransactionOptions.checkInterval, getBlockAttempts: awaitTransactionOptions.getBlockAttempts } = options);
return awaitTransactionOptions;
}
async function newAccountTransaction(name, ownerPublicKey, activePublicKey, orePayerAccountName, options = {}) {
const { broadcast, permission, tokenSymbol, pricekey = 1, referral = '' } = {
broadcast: true,
permission: 'active',
tokenSymbol: this.chainName === 'ore' ? 'ORE' : 'EOS',
...options
};
const args = { activePublicKey, name, orePayerAccountName, ownerPublicKey, permission, pricekey, referral };
const action = composeAction(ChainAction.Ore_CreateAccount, args);
return this.transact([action], broadcast);
}
function timestampEosBase32() {
// NOTE: Returns a UNIX timestamp, that is EOS base32 encoded
return eosBase32(Date.now().toString(BASE));
}
function randomEosBase32() {
// NOTE: Returns a random string, that is EOS base32 encoded
return eosBase32(Math.random().toString(BASE).substr(2));
}
function generateAccountNameString(prefix = '') {
return (prefix + timestampEosBase32() + randomEosBase32()).substr(0, 12);
}
function encrypted(key) {
if (key.match(/^\{.*\}$/)) {
return true;
}
return false;
}
function encryptKeys(keys, password, salt) {
const { privateKeys, publicKeys } = keys;
const encryptedKeys = {
privateKeys: {
owner: encrypted(keys.privateKeys.owner) ? keys.privateKeys.owner : this.encrypt(keys.privateKeys.owner, password, salt).toString(),
active: encrypted(keys.privateKeys.active) ? keys.privateKeys.active : this.encrypt(keys.privateKeys.active, password, salt).toString()
},
publicKeys: { ...publicKeys }
};
return encryptedKeys;
}
async function getAccountPermissions(oreAccountName) {
const account = await this.eos.rpc.get_account(oreAccountName);
const {
permissions
} = account;
return permissions;
}
function weightedKey(key, weight = 1) {
return { key, weight };
}
function weightKeys(keys, weight = 1) {
return keys.map(key => weightedKey(key, weight));
}
function newPermissionDetails(keys, threshold = 1, weights = 1) {
return {
accounts: [],
keys: weightKeys.bind(this)(keys, weights),
threshold,
waits: []
};
}
function newPermission(keys, permName, parent = 'active', threshold = 1, weights = 1) {
return {
parent,
perm_name: permName,
required_auth: newPermissionDetails.bind(this)(keys, threshold, weights)
};
}
async function appendPermission(oreAccountName, keys, permName, parent = 'active', threshold = 1, weights = 1) {
const perms = await getAccountPermissions.bind(this)(oreAccountName);
const existingPerm = perms.find(perm => perm.perm_name === permName);
if (existingPerm) { // NOTE: Add new keys & update the parent permission
const weightedKeys = weightKeys.bind(this)(keys, weights);
existingPerm.required_auth.keys = existingPerm.required_auth.keys.concat(weightedKeys);
existingPerm.parent = parent;
return existingPerm;
}
const newPerm = newPermission.bind(this)(keys, permName, parent, threshold, weights);
return newPerm;
}
// NOTE: This method is specific to creating authVerifier keys...
async function generateAuthKeys(oreAccountName, permName, code, action, broadcast) {
const authKeys = await Keygen.generateMasterKeys();
const options = { broadcast, authPermission: 'owner', links: [{ code, type: action }] };
await addPermission.bind(this)(oreAccountName, [authKeys.publicKeys.active], permName, 'active', false, options);
return authKeys;
}
async function createOreAccountWithKeys(activePublicKey, ownerPublicKey, orePayerAccountName, options = {}) {
options = {
confirm: true,
accountNamePrefix: 'ore',
...options
};
const oreAccountName = options.oreAccountName || await generateAccountName.bind(this)(options.accountNamePrefix);
const { confirm } = options;
const awaitTransactionOptions = getAwaitTransactionOptions(options);
const transaction = await this.sendTransaction(() => newAccountTransaction.bind(this)(oreAccountName, ownerPublicKey, activePublicKey, orePayerAccountName, options), confirm, awaitTransactionOptions);
return { oreAccountName, transaction };
}
async function generateOreAccountAndEncryptedKeys(password, salt, ownerPublicKey, orePayerAccountName, options = {}) {
const keys = await generateEncryptedKeys.bind(this)(password, salt, options.keys);
const {
oreAccountName,
transaction
} = await createOreAccountWithKeys.bind(this)(keys.publicKeys.active, ownerPublicKey, orePayerAccountName, options);
return { oreAccountName, transaction, keys };
}
// Creates an account, without verifier auth keys
async function createAccount(password, salt, ownerPublicKey, orePayerAccountName, options = {}) {
options = {
broadcast: true,
...options
};
const { broadcast, oreAccountName: newAccountName } = options;
const {
oreAccountName, transaction, keys
} = await generateOreAccountAndEncryptedKeys.bind(this)(password, salt, ownerPublicKey, orePayerAccountName, options);
return {
oreAccountName,
privateKey: keys.privateKeys.active,
publicKey: keys.publicKeys.active,
keys,
transaction
};
}
// returns an array of actions to delete permissions
// every permission input is being deleted
async function composeDeleteAuthActions(permissions, authAccountName, authPermission) {
const actions = [];
permissions.forEach((permission) => {
const args = { authAccountName, authPermission, permission };
const action = composeAction(ChainAction.Account_DeleteAuth, args);
actions.push(action);
});
return actions;
}
// returns an array of actions to link to an app permission
// every { contract, action } input pair is linked to the app permission
async function composeLinkActions(links, permission, authAccountName, authPermission) {
const actions = [];
links.forEach((link) => {
const { code, type } = link;
const args = { authAccountName, authPermission, code, permission, type };
const action = composeAction(ChainAction.Account_LinkAuth, args);
actions.push(action);
});
return actions;
}
// returns a list of actions to unlink to an app permission
// every { contract, action } input pair is linked to the app permission
async function composeUnlinkActions(links, authAccountName, authPermission) {
const actions = [];
links.forEach((link) => {
const { code, type } = link;
const args = { authAccountName, authPermission, code, type };
const action = composeAction(ChainAction.Account_UnlinkAuth, args);
actions.push(action);
});
return actions;
}
function addFirstAuthAction(actions, firstAuthorizerAction) {
Iif (!this.isNullOrEmpty(firstAuthorizerAction)) {
actions = [firstAuthorizerAction, ...actions];
}
return actions;
}
/* Public */
// gets the account details from the chain network and checks if the account has a specific permission
async function checkIfAccountHasPermission(oreAccountName, permName) {
const perms = await getAccountPermissions.bind(this)(oreAccountName);
return !!(perms.find(perm => perm.perm_name === permName));
}
async function addPermission(authAccountName, keys, permissionName, parentPermission, overridePermission = false, options = {}) {
let perm;
const { authPermission = 'active', links = [], broadcast = true, confirm = true, firstAuthorizerAction = {} } = options;
Iif (overridePermission) {
perm = await newPermission.bind(this)(keys, permissionName, parentPermission);
} else {
perm = await appendPermission.bind(this)(authAccountName, keys, permissionName, parentPermission);
}
const { perm_name: permission, parent, required_auth: auth } = perm;
// add account permission
const args = { auth, authAccountName, authPermission, parent, permission };
const action = composeAction(ChainAction.Account_UpdateAuth, args);
let actions = [action];
(actions = addFirstAuthAction.bind(this)(actions, firstAuthorizerAction));
// add action permission for every { contract, action } pair passed in
if (links.length > 0) {
const linkActions = await composeLinkActions(links, permission, authAccountName, authPermission);
actions = actions.concat(linkActions);
}
const awaitTransactionOptions = getAwaitTransactionOptions(options);
const transaction = await this.sendTransaction(async () => this.transact(actions, broadcast), confirm, awaitTransactionOptions);
return transaction;
}
async function deletePermissions(authAccountName, permissions, options = {}) {
options = {
authPermission: 'active',
...options
};
const { authPermission, links = [], broadcast = true, confirm = true, firstAuthorizerAction } = options;
let deleteActions = await composeDeleteAuthActions(permissions, authAccountName, authPermission);
(deleteActions = addFirstAuthAction.bind(this)(deleteActions, firstAuthorizerAction));
const awaitTransactionOptions = getAwaitTransactionOptions(options);
const transaction = await this.sendTransaction(async () => this.transact(deleteActions, broadcast), confirm, awaitTransactionOptions);
return transaction;
}
// links actions for a given account to an app permission
async function linkActionsToPermission(links, permission, authAccountName, authPermission, broadcast = true, options = {}) {
const { confirm = true, firstAuthorizerAction = {} } = options;
let actions = await composeLinkActions(links, permission, authAccountName, authPermission);
(actions = addFirstAuthAction.bind(this)(actions, firstAuthorizerAction));
const awaitTransactionOptions = getAwaitTransactionOptions(options);
const transaction = await this.sendTransaction(async () => this.transact(actions, broadcast), confirm, awaitTransactionOptions);
return transaction;
}
async function unlinkActionsToPermission(links, authAccountName, authPermission, broadcast = true, options = {}) {
const { confirm = true, firstAuthorizerAction } = options;
let actions = await composeUnlinkActions(links, authAccountName, authPermission);
(actions = addFirstAuthAction.bind(this)(actions, firstAuthorizerAction));
const awaitTransactionOptions = getAwaitTransactionOptions(options);
const transaction = await this.sendTransaction(async () => this.transact(actions, broadcast), confirm, awaitTransactionOptions);
return transaction;
}
// If account already exists, check if active keys on-chain are null. If so, the account name is usable
// If account already exists but active keys are not null, throw an error
async function checkIfAccountNameUsable(accountName) {
let key = null;
const permissions = await getAccountPermissions.bind(this)(accountName);
const activePermission = permissions.find(perm => perm.perm_name === 'active');
const { required_auth: requiredAuth } = activePermission;
const { keys } = requiredAuth;
key = keys.find(k => k.key === this.unusedAccountPubKey);
// only unusedAccountPubKey should exist in the active key
if (!this.isNullOrEmpty(key) && keys.length === 1) {
return true;
}
throw new Error(`Account already in use: ${accountName}`);
}
// replace the unusedAccountPubKey with the new user's key for the active permission
// any account with active key set to unusedAccountPubKey means that account can be reused
async function reuseAccount(authAccountName, keys, authPermission = 'owner', parentPermission = 'owner', permissionName = 'active', options = {}) {
let transaction = null;
try {
options = {
confirm: true,
authPermission,
...options
};
const { confirm = true } = options;
const awaitTransactionOptions = getAwaitTransactionOptions(options);
transaction = await this.sendTransaction(() => addPermission.bind(this)(authAccountName, [keys.publicKeys.active], permissionName, parentPermission, true, options), confirm, awaitTransactionOptions);
} catch (error) {
throw new Error(`Error in reuseAccount: ${error}`);
}
return transaction;
}
async function exportAccount(authAccountName, publicKeys) {
const { owner, active } = publicKeys;
let activeTransaction = null;
let ownerTransaction = null;
if (!isValidPublicKey(active) || !isValidPublicKey(owner)) {
throw new Error('Error in exportAccount: Valid public keys needs to be provided for both active and owner keys.');
}
try {
const options = {
confirm: true,
authPermission: 'owner'
};
const { confirm = true } = options;
const awaitTransactionOptions = getAwaitTransactionOptions(options);
activeTransaction = await this.sendTransaction(() => addPermission.bind(this)(authAccountName, [active], 'active', 'owner', true, options), confirm, awaitTransactionOptions);
ownerTransaction = await this.sendTransaction(() => addPermission.bind(this)(authAccountName, [owner], 'owner', '', true, options), confirm, awaitTransactionOptions);
} catch (error) {
throw new Error(`Error in exportAccount: ${error}`);
}
return { activeTransaction, ownerTransaction };
}
// NOTE: When setting keys for `createKeyPair`, all keys are completely overriden, not just partially
async function createKeyPair(password, salt, authAccountName, permissionName, options = {}) {
options = {
confirm: true,
parentPermission: 'active',
keys: await generateEncryptedKeys.bind(this)(password, salt),
...options
};
const { keys, parentPermission } = options;
const transaction = await addPermission.bind(this)(authAccountName, [keys.publicKeys.active], permissionName, parentPermission, false, options);
return keys;
}
async function createBridgeAccount(password, salt, authorizingAccount, options) {
let oreAccountName = null;
let isAccountUsable = false;
let transaction = null;
let nameAlreadyExists = false;
const { confirm = true, oreAccountName: newAccountName } = options;
const keys = await generateEncryptedKeys.bind(this)(password, salt, options.keys);
Eif (newAccountName) {
nameAlreadyExists = await getNameAlreadyExists.bind(this)(newAccountName);
}
// if the new account name passed in already exists, check if the active key matches the unused active public key
Iif (nameAlreadyExists) {
oreAccountName = newAccountName;
try {
isAccountUsable = await checkIfAccountNameUsable.bind(this)(newAccountName);
if (isAccountUsable) {
transaction = await reuseAccount.bind(this)(oreAccountName, keys, 'owner', 'owner', 'active', options);
}
} catch (error) {
throw new Error(`Error creating bridge account: Provided account name cannot be used for the new account: ${newAccountName} ${error}`);
}
}
// if no new account name is passed in, generate a new account name and create it
// or if the new account name passed in doesn't exist on chain yet, create the account
Eif (!nameAlreadyExists || this.isNullOrEmpty(newAccountName)) {
try {
Eif (!this.isNullOrEmpty(newAccountName) && !nameAlreadyExists) {
oreAccountName = newAccountName;
} else {
oreAccountName = await generateAccountName.bind(this)(options.accountNamePrefix);
}
options = {
...options,
oreAccountName,
confirm
};
const awaitTransactionOptions = getAwaitTransactionOptions(options);
transaction = await this.sendTransaction(async () => this.createNewAccount(authorizingAccount, keys, options), confirm, awaitTransactionOptions);
} catch (error) {
throw new Error(`Error creating bridge account: ${oreAccountName} ${error}`);
}
}
return {
oreAccountName,
privateKey: keys.privateKeys.active,
publicKey: keys.publicKeys.active,
keys,
transaction
};
}
// Creates an account, with verifier auth keys for ORE, and without for EOS
async function createOreAccount(password, salt, ownerPublicKey, orePayerAccountName, options = {}) {
let oreAccountName;
let transaction;
let verifierAuthKey;
let verifierAuthPublicKey;
let isAccountUsable = false;
const keys = await generateEncryptedKeys.bind(this)(password, salt, options.keys);
const { broadcast, confirm = true, oreAccountName: newAccountName } = options;
const nameAlreadyExists = await getNameAlreadyExists.bind(this)(newAccountName);
Iif (nameAlreadyExists) {
oreAccountName = newAccountName;
// if the new account name already exists, check if the active key matches the unused active public key
try {
isAccountUsable = await checkIfAccountNameUsable.bind(this)(newAccountName);
if (isAccountUsable) {
transaction = await reuseAccount.bind(this)(oreAccountName, keys, 'owner', 'owner', 'active', options);
}
} catch (error) {
throw new Error(`Error creating account: Provided account name cannot be used for the new account: ${newAccountName} ${error}`);
}
}
// if no new account name is passed in, generate a new account name and create it
// or if the new account name passed in doesn't exist on chain yet, create the account
Eif (!nameAlreadyExists || this.isNullOrEmpty(newAccountName)) {
try {
const { active: activePublicKey } = keys.publicKeys;
if (!this.isNullOrEmpty(newAccountName) && !nameAlreadyExists) {
oreAccountName = newAccountName;
} else {
oreAccountName = await generateAccountName.bind(this)(options.accountNamePrefix);
}
const awaitTransactionOptions = getAwaitTransactionOptions(options);
transaction = await this.sendTransaction(() => newAccountTransaction.bind(this)(oreAccountName, ownerPublicKey, activePublicKey, orePayerAccountName, options), confirm, awaitTransactionOptions);
} catch (error) {
throw new Error(`Error creating account: ${newAccountName} ${error}`);
}
}
if (this.chainName === 'ore') {
const verifierAuthKeys = await generateAuthKeys.bind(this)(oreAccountName, 'authverifier', 'token.ore', 'approve', broadcast);
verifierAuthKey = verifierAuthKeys.privateKeys.active;
verifierAuthPublicKey = verifierAuthKeys.publicKeys.active;
}
return {
oreAccountName,
privateKey: keys.privateKeys.active,
publicKey: keys.publicKeys.active,
keys,
transaction,
verifierAuthKey,
verifierAuthPublicKey
};
}
function eosBase32(base32String) {
// NOTE: Returns valid EOS base32, which is different than the standard JS base32 implementation
return base32String
.replace(/0/g, 'v')
.replace(/6/g, 'w')
.replace(/7/g, 'x')
.replace(/8/g, 'y')
.replace(/9/g, 'z');
}
// Recursively generates account names, until a uniq name is generated...
async function generateAccountName(prefix = '', checkIfNameUsedOnChain = true) {
// NOTE: account names MUST be base32 encoded, and be 12 characters, in compliance with the EOS standard
// NOTE: account names can also contain only the following characters: a-z, 1-5, & '.' In regex: [a-z1-5\.]{12}
// NOTE: account names are generated based on the current unix timestamp + some randomness, and cut to be 12 chars
const accountName = generateAccountNameString.bind(this)(prefix);
let nameAlreadyExists = false;
if (checkIfNameUsedOnChain) {
nameAlreadyExists = await getNameAlreadyExists.bind(this)(accountName);
}
Iif (nameAlreadyExists) {
return generateAccountName.bind(this)();
}
return accountName;
}
async function generateEncryptedKeys(password, salt, predefinedKeys = {}) {
let keys = await Keygen.generateMasterKeys();
const { publicKeys = {}, privateKeys = {} } = predefinedKeys;
keys = {
...keys,
publicKeys: {
...keys.publicKeys,
...publicKeys
},
privateKeys: {
...keys.privateKeys,
...privateKeys
}
};
const encryptedKeys = encryptKeys.bind(this)(keys, password, salt);
return encryptedKeys;
}
async function getNameAlreadyExists(accountName) {
try {
await this.eos.rpc.get_account(accountName);
return true;
} catch (e) {
return false;
}
}
module.exports = {
addPermission,
checkIfAccountHasPermission,
createKeyPair,
createBridgeAccount,
createOreAccount,
deletePermissions,
eosBase32,
exportAccount,
getAccountPermissions,
generateAccountName,
generateAccountNameString,
generateEncryptedKeys,
getNameAlreadyExists,
linkActionsToPermission,
unlinkActionsToPermission
};
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