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metamask-extension/app/scripts/controllers/permissions/background-api.js

71 lines
1.7 KiB
JavaScript

import nanoid from 'nanoid';
import {
CaveatTypes,
RestrictedMethods,
} from '../../../../shared/constants/permissions';
export function getPermissionBackgroundApiMethods(permissionController) {
return {
addPermittedAccount: (origin, account) => {
const existing = permissionController.getCaveat(
origin,
RestrictedMethods.eth_accounts,
CaveatTypes.restrictReturnedAccounts,
);
if (existing.value.includes(account)) {
return;
}
permissionController.updateCaveat(
origin,
RestrictedMethods.eth_accounts,
CaveatTypes.restrictReturnedAccounts,
[...existing.value, account],
);
},
removePermittedAccount: (origin, account) => {
const existing = permissionController.getCaveat(
origin,
RestrictedMethods.eth_accounts,
CaveatTypes.restrictReturnedAccounts,
);
if (!existing.value.includes(account)) {
return;
}
const remainingAccounts = existing.value.filter(
(existingAccount) => existingAccount !== account,
);
if (remainingAccounts.length === 0) {
permissionController.revokePermission(
origin,
RestrictedMethods.eth_accounts,
);
} else {
permissionController.updateCaveat(
origin,
RestrictedMethods.eth_accounts,
CaveatTypes.restrictReturnedAccounts,
remainingAccounts,
);
}
},
requestAccountsPermissionWithId: async (origin) => {
const id = nanoid();
permissionController.requestPermissions(
{ origin },
{
eth_accounts: {},
},
{ id },
);
return id;
},
};
}