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ciphermask/test/mocks/permission-controller.js

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import { ethErrors, errorCodes } from 'eth-rpc-errors';
import deepFreeze from 'deep-freeze-strict';
import { ApprovalController } from '@metamask/controllers';
import _getRestrictedMethods from '../../app/scripts/controllers/permissions/restrictedMethods';
import { CAVEAT_NAMES } from '../../shared/constants/permissions';
import {
CAVEAT_TYPES,
NOTIFICATION_NAMES,
} from '../../app/scripts/controllers/permissions/enums';
/**
* README
* This file contains three primary kinds of mocks:
* - Mocks for initializing a permissions controller and getting a permissions
* middleware
* - Functions for getting various mock objects consumed or produced by
* permissions controller methods
* - Immutable mock values like Ethereum accounts and expected states
*/
export const noop = () => undefined;
/**
* Mock Permissions Controller and Middleware
*/
const keyringAccounts = deepFreeze([
'0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc',
'0xc42edfcc21ed14dda456aa0756c153f7985d8813',
'0x7ae1cdd37bcbdb0e1f491974da8022bfdbf9c2bf',
'0xcc74c7a59194e5d9268476955650d1e285be703c',
]);
const getIdentities = () => {
return keyringAccounts.reduce((identities, address, index) => {
identities[address] = { address, name: `Account ${index}` };
return identities;
}, {});
};
// perm controller initialization helper
const getRestrictedMethods = (permController) => {
return {
// the actual, production restricted methods
..._getRestrictedMethods(permController),
// our own dummy method for testing
test_method: {
description: `This method is only for testing.`,
method: (req, res, __, end) => {
if (req.params[0]) {
res.result = 1;
} else {
res.result = 0;
}
end();
},
},
};
};
/**
* Gets default mock constructor options for a permissions controller.
*
* @returns {Object} A PermissionsController constructor options object.
*/
export function getPermControllerOpts() {
return {
approvals: new ApprovalController({
showApprovalRequest: noop,
}),
getKeyringAccounts: async () => [...keyringAccounts],
getUnlockPromise: () => Promise.resolve(),
getRestrictedMethods,
isUnlocked: () => true,
notifyDomain: noop,
notifyAllDomains: noop,
preferences: {
getState: () => {
return {
identities: getIdentities(),
selectedAddress: keyringAccounts[0],
};
},
subscribe: noop,
},
showPermissionRequest: noop,
};
}
/**
* Gets a Promise-wrapped permissions controller middleware function.
*
* @param {PermissionsController} permController - The permissions controller to get a
* middleware for.
* @param {string} origin - The origin for the middleware.
* @param {string} extensionId - The extension id for the middleware.
* @returns {Function} A Promise-wrapped middleware function with convenient default args.
*/
export function getPermissionsMiddleware(permController, origin, extensionId) {
const middleware = permController.createMiddleware({ origin, extensionId });
return (req, res = {}, next = noop, end) => {
return new Promise((resolve, reject) => {
// eslint-disable-next-line no-param-reassign
end = end || _end;
middleware(req, res, next, end);
// emulates json-rpc-engine error handling
function _end(err) {
if (err || res.error) {
reject(err || res.error);
} else {
resolve(res);
}
}
});
};
}
/**
* @param {Object} notifications - An object that will store notifications produced
* by the permissions controller.
* @returns {Function} A function passed to the permissions controller at initialization,
* for recording notifications.
*/
export const getNotifyDomain = (notifications = {}) => (
origin,
notification,
) => {
notifications[origin].push(notification);
};
/**
* @param {Object} notifications - An object that will store notifications produced
* by the permissions controller.
* @returns {Function} A function passed to the permissions controller at initialization,
* for recording notifications.
*/
export const getNotifyAllDomains = (notifications = {}) => (notification) => {
Object.keys(notifications).forEach((origin) => {
notifications[origin].push(notification);
});
};
/**
* Constants and Mock Objects
* - e.g. permissions, caveats, and permission requests
*/
const DOMAINS = {
a: { origin: 'https://foo.xyz', host: 'foo.xyz' },
b: { origin: 'https://bar.abc', host: 'bar.abc' },
c: { origin: 'https://baz.def', host: 'baz.def' },
};
const PERM_NAMES = {
eth_accounts: 'eth_accounts',
test_method: 'test_method',
does_not_exist: 'does_not_exist',
};
const ACCOUNTS = {
a: {
permitted: keyringAccounts.slice(0, 3),
primary: keyringAccounts[0],
},
b: {
permitted: [keyringAccounts[0]],
primary: keyringAccounts[0],
},
c: {
permitted: [keyringAccounts[1]],
primary: keyringAccounts[1],
},
};
/**
* Helpers for getting mock caveats.
*/
const CAVEATS = {
/**
* Gets a correctly formatted eth_accounts exposedAccounts caveat.
*
* @param {Array<string>} accounts - The accounts for the caveat
* @returns {Object} An eth_accounts exposedAccounts caveats
*/
eth_accounts: (accounts) => {
return [
{
type: CAVEAT_TYPES.limitResponseLength,
value: 1,
name: CAVEAT_NAMES.primaryAccountOnly,
},
{
type: CAVEAT_TYPES.filterResponse,
value: accounts,
name: CAVEAT_NAMES.exposedAccounts,
},
];
},
};
/**
* Each function here corresponds to what would be a type or interface consumed
* by permissions controller functions if we used TypeScript.
*/
const PERMS = {
/**
* The argument to approvePermissionsRequest
* @param {string} id - The rpc-cap permissions request id.
* @param {Object} permissions - The approved permissions, request-formatted.
*/
approvedRequest: (id, permissions = {}) => {
return {
permissions: { ...permissions },
metadata: { id },
};
},
/**
* Requested permissions objects, as passed to wallet_requestPermissions.
*/
requests: {
/**
* @returns {Object} A permissions request object with eth_accounts
*/
eth_accounts: () => {
return { eth_accounts: {} };
},
/**
* @returns {Object} A permissions request object with test_method
*/
test_method: () => {
return { test_method: {} };
},
/**
* @returns {Object} A permissions request object with does_not_exist
*/
does_not_exist: () => {
return { does_not_exist: {} };
},
},
/**
* Finalized permission requests, as returned by finalizePermissionsRequest
*/
finalizedRequests: {
/**
* @param {Array<string>} accounts - The accounts for the eth_accounts permission caveat
* @returns {Object} A finalized permissions request object with eth_accounts and its caveat
*/
eth_accounts: (accounts) => {
return {
eth_accounts: {
caveats: CAVEATS.eth_accounts(accounts),
},
};
},
/**
* @returns {Object} A finalized permissions request object with test_method
*/
test_method: () => {
return {
test_method: {},
};
},
},
/**
* Partial members of res.result for successful:
* - wallet_requestPermissions
* - wallet_getPermissions
*/
granted: {
/**
* @param {Array<string>} accounts - The accounts for the eth_accounts permission caveat
* @returns {Object} A granted permissions object with eth_accounts and its caveat
*/
eth_accounts: (accounts) => {
return {
parentCapability: PERM_NAMES.eth_accounts,
caveats: CAVEATS.eth_accounts(accounts),
};
},
/**
* @returns {Object} A granted permissions object with test_method
*/
test_method: () => {
return {
parentCapability: PERM_NAMES.test_method,
};
},
},
};
/**
* Objects with function values for getting correctly formatted permissions,
* caveats, errors, permissions requests etc.
*/
export const getters = deepFreeze({
CAVEATS,
PERMS,
/**
* Getters for errors by the method or workflow that throws them.
*/
ERRORS: {
validatePermittedAccounts: {
invalidParam: () => {
return {
name: 'Error',
message: 'Must provide non-empty array of account(s).',
};
},
nonKeyringAccount: (account) => {
return {
name: 'Error',
message: `Unknown account: ${account}`,
};
},
},
finalizePermissionsRequest: {
grantEthAcountsFailure: (origin) => {
return {
// name: 'EthereumRpcError',
message: `Failed to add 'eth_accounts' to '${origin}'.`,
code: errorCodes.rpc.internal,
};
},
},
addPermittedAccount: {
alreadyPermitted: () => {
return {
message: 'Account is already permitted for origin',
};
},
invalidOrigin: () => {
return {
message: 'Unrecognized domain',
};
},
noEthAccountsPermission: () => {
return {
message: `Origin does not have 'eth_accounts' permission`,
};
},
},
removePermittedAccount: {
notPermitted: () => {
return {
message: 'Account is not permitted for origin',
};
},
invalidOrigin: () => {
return {
message: 'Unrecognized domain',
};
},
noEthAccountsPermission: () => {
return {
message: `Origin does not have 'eth_accounts' permission`,
};
},
},
_handleAccountSelected: {
invalidParams: () => {
return {
name: 'Error',
message: 'Selected account should be a non-empty string.',
};
},
},
approvePermissionsRequest: {
noPermsRequested: () => {
return {
message: 'Must request at least one permission.',
};
},
},
rejectPermissionsRequest: {
rejection: () => {
return {
message: ethErrors.provider.userRejectedRequest().message,
};
},
methodNotFound: (methodName) => {
return {
message: `The method '${methodName}' does not exist / is not available.`,
};
},
},
createMiddleware: {
badOrigin: () => {
return {
message: 'Must provide non-empty string origin.',
};
},
},
rpcCap: {
unauthorized: () => {
return {
code: 4100,
};
},
},
pendingApprovals: {
duplicateOriginOrId: (id, origin) => {
return {
message: `Pending approval with id '${id}' or origin '${origin}' already exists.`,
};
},
requestAlreadyPending: (origin) => {
return {
message: `Request of type 'wallet_requestPermissions' already pending for origin ${origin}. Please wait.`,
};
},
},
eth_requestAccounts: {
requestAlreadyPending: () => {
return {
message: 'Already processing eth_requestAccounts. Please wait.',
};
},
},
notifyAccountsChanged: {
invalidOrigin: (origin) => {
return {
message: `Invalid origin: '${origin}'`,
};
},
invalidAccounts: () => {
return {
message: 'Invalid accounts',
};
},
},
},
/**
* Getters for notifications produced by the permissions controller.
*/
NOTIFICATIONS: {
/**
* Gets a removed accounts notification.
*
* @returns {Object} An accountsChanged notification with an empty array as its result
*/
removedAccounts: () => {
return {
method: NOTIFICATION_NAMES.accountsChanged,
params: [],
};
},
/**
* Gets a new accounts notification.
*
* @param {Array<string>} accounts - The accounts added to the notification.
* @returns {Object} An accountsChanged notification with the given accounts as its result
*/
newAccounts: (accounts) => {
return {
method: NOTIFICATION_NAMES.accountsChanged,
params: accounts,
};
},
},
/**
* Getters for mock RPC request objects.
*/
RPC_REQUESTS: {
/**
* Gets an arbitrary RPC request object.
*
* @param {string} origin - The origin of the request
* @param {string} method - The request method
* @param {Array<any>} params - The request parameters
* @param {string} [id] - The request id
* @returns {Object} An RPC request object
*/
custom: (origin, method, params = [], id) => {
const req = {
origin,
method,
params,
};
if (id !== undefined) {
req.id = id;
}
return req;
},
/**
* Gets an eth_accounts RPC request object.
*
* @param {string} origin - The origin of the request
* @returns {Object} An RPC request object
*/
eth_accounts: (origin) => {
return {
origin,
method: 'eth_accounts',
params: [],
};
},
/**
* Gets a test_method RPC request object.
*
* @param {string} origin - The origin of the request
* @param {boolean} param - The request param
* @returns {Object} An RPC request object
*/
test_method: (origin, param = false) => {
return {
origin,
method: 'test_method',
params: [param],
};
},
/**
* Gets an eth_requestAccounts RPC request object.
*
* @param {string} origin - The origin of the request
* @returns {Object} An RPC request object
*/
eth_requestAccounts: (origin) => {
return {
origin,
method: 'eth_requestAccounts',
params: [],
};
},
/**
* Gets a wallet_requestPermissions RPC request object,
* for a single permission.
*
* @param {string} origin - The origin of the request
* @param {string} permissionName - The name of the permission to request
* @returns {Object} An RPC request object
*/
requestPermission: (origin, permissionName) => {
return {
origin,
method: 'wallet_requestPermissions',
params: [PERMS.requests[permissionName]()],
};
},
/**
* Gets a wallet_requestPermissions RPC request object,
* for multiple permissions.
*
* @param {string} origin - The origin of the request
* @param {Object} permissions - A permission request object
* @returns {Object} An RPC request object
*/
requestPermissions: (origin, permissions = {}) => {
return {
origin,
method: 'wallet_requestPermissions',
params: [permissions],
};
},
/**
* Gets a metamask_sendDomainMetadata RPC request object.
*
* @param {string} origin - The origin of the request
* @param {Object} name - The domainMetadata name
* @param {Array<any>} [args] - Any other data for the request's domainMetadata
* @returns {Object} An RPC request object
*/
metamask_sendDomainMetadata: (origin, name, ...args) => {
return {
origin,
method: 'metamask_sendDomainMetadata',
params: {
...args,
name,
},
};
},
},
});
/**
* Objects with immutable mock values.
*/
export const constants = deepFreeze({
ALL_ACCOUNTS: keyringAccounts,
DUMMY_ACCOUNT: '0xabc',
EXTRA_ACCOUNT: keyringAccounts[3],
REQUEST_IDS: {
a: '1',
b: '2',
c: '3',
},
DOMAINS: { ...DOMAINS },
ACCOUNTS: { ...ACCOUNTS },
PERM_NAMES: { ...PERM_NAMES },
RESTRICTED_METHODS: ['eth_accounts', 'test_method'],
/**
* Mock permissions history objects.
*/
EXPECTED_HISTORIES: {
case1: [
{
[DOMAINS.a.origin]: {
[PERM_NAMES.eth_accounts]: {
lastApproved: 1,
accounts: {
[ACCOUNTS.a.permitted[0]]: 1,
[ACCOUNTS.a.permitted[1]]: 1,
[ACCOUNTS.a.permitted[2]]: 1,
},
},
},
},
{
[DOMAINS.a.origin]: {
[PERM_NAMES.eth_accounts]: {
lastApproved: 2,
accounts: {
[ACCOUNTS.a.permitted[0]]: 2,
[ACCOUNTS.a.permitted[1]]: 1,
[ACCOUNTS.a.permitted[2]]: 1,
},
},
},
},
],
case2: [
{
[DOMAINS.a.origin]: {
[PERM_NAMES.eth_accounts]: {
lastApproved: 1,
accounts: {},
},
},
},
],
case3: [
{
[DOMAINS.a.origin]: {
[PERM_NAMES.test_method]: { lastApproved: 1 },
},
[DOMAINS.b.origin]: {
[PERM_NAMES.eth_accounts]: {
lastApproved: 1,
accounts: {
[ACCOUNTS.b.permitted[0]]: 1,
},
},
},
[DOMAINS.c.origin]: {
[PERM_NAMES.test_method]: { lastApproved: 1 },
[PERM_NAMES.eth_accounts]: {
lastApproved: 1,
accounts: {
[ACCOUNTS.c.permitted[0]]: 1,
},
},
},
},
{
[DOMAINS.a.origin]: {
[PERM_NAMES.test_method]: { lastApproved: 2 },
},
[DOMAINS.b.origin]: {
[PERM_NAMES.eth_accounts]: {
lastApproved: 1,
accounts: {
[ACCOUNTS.b.permitted[0]]: 1,
},
},
},
[DOMAINS.c.origin]: {
[PERM_NAMES.test_method]: { lastApproved: 1 },
[PERM_NAMES.eth_accounts]: {
lastApproved: 2,
accounts: {
[ACCOUNTS.c.permitted[0]]: 1,
[ACCOUNTS.b.permitted[0]]: 2,
},
},
},
},
],
case4: [
{
[DOMAINS.a.origin]: {
[PERM_NAMES.test_method]: {
lastApproved: 1,
},
},
},
],
},
});