BREAKING: Remove wallet_enable and wallet_installSnaps in favor of wallet_requestSnaps

packages/rpc-methods/jest.config.js

@@ -5,10 +5,10 @@ module.exports = deepmerge(baseConfig, {
   coveragePathIgnorePatterns: ['./src/index.ts'],
   coverageThreshold: {
     global: {
-      branches: 89.47,
-      functions: 73.33,
-      lines: 47.42,
-      statements: 47.42,
+      branches: 85.82,
+      functions: 80,
+      lines: 60.24,
+      statements: 60.24,
     },
   },
   testTimeout: 2500,

packages/rpc-methods/package.json

@@ -53,6 +53,7 @@
     "eslint-plugin-prettier": "^3.4.0",
     "jest": "^29.0.2",
     "jest-it-up": "^2.0.0",
+    "json-rpc-engine": "^6.1.0",
     "prettier": "^2.3.2",
     "prettier-plugin-packagejson": "^2.2.11",
     "rimraf": "^3.0.2",

packages/rpc-methods/src/permitted/common/snapInstallation.ts

@@ -1,75 +1,14 @@
 import { ethErrors } from 'eth-rpc-errors';
 import { RequestedPermissions } from '@metamask/controllers';
 import { isObject } from '@metamask/utils';
-import { InstallSnapsResult, SNAP_PREFIX } from '@metamask/snap-utils';
+import { InstallSnapsResult } from '@metamask/snap-utils';
 
 export { InstallSnapsResult } from '@metamask/snap-utils';
 
 export type InstallSnapsHook = (
   requestedSnaps: RequestedPermissions,
 ) => Promise<InstallSnapsResult>;
 
-/**
- * Preprocesses requested permissions to support `wallet_snap` syntactic sugar. This is done by
- * replacing instances of `wallet_snap` with `wallet_snap_${snapId}`.
- *
- * @param requestedPermissions - The existing permissions object.
- * @returns The modified permissions request.
- */
-export function preprocessRequestedPermissions(
-  requestedPermissions: RequestedPermissions,
-): RequestedPermissions {
-  if (!isObject(requestedPermissions)) {
-    throw ethErrors.rpc.invalidRequest({ data: { requestedPermissions } });
-  }
-
-  // passthrough if 'wallet_snap' is not requested
-  if (!requestedPermissions.wallet_snap) {
-    return requestedPermissions;
-  }
-
-  // rewrite permissions request parameter by destructuring snaps into
-  // proper permissions prefixed with 'wallet_snap_'
-  return Object.keys(requestedPermissions).reduce(
-    (newRequestedPermissions, permName) => {
-      if (permName === 'wallet_snap') {
-        if (!isObject(requestedPermissions[permName])) {
-          throw ethErrors.rpc.invalidParams({
-            message: `Invalid params to 'wallet_requestPermissions'`,
-            data: { requestedPermissions },
-          });
-        }
-
-        const requestedSnaps = requestedPermissions[
-          permName
-        ] as RequestedPermissions;
-
-        // destructure 'wallet_snap' object
-        Object.keys(requestedSnaps).forEach((snapId) => {
-          const snapKey = SNAP_PREFIX + snapId;
-
-          // disallow requesting a snap X under 'wallet_snaps' and
-          // directly as 'wallet_snap_X'
-          if (requestedPermissions[snapKey]) {
-            throw ethErrors.rpc.invalidParams({
-              message: `Snap '${snapId}' requested both as direct permission and under 'wallet_snap'. We recommend using 'wallet_snap' only.`,
-              data: { requestedPermissions },
-            });
-          }
-
-          newRequestedPermissions[snapKey] = requestedSnaps[snapId];
-        });
-      } else {
-        // otherwise, leave things as we found them
-        newRequestedPermissions[permName] = requestedPermissions[permName];
-      }
-
-      return newRequestedPermissions;
-    },
-    {} as RequestedPermissions,
-  );
-}
-
 /**
  * Typechecks the requested snaps and passes them to the permissions
  * controller for installation.

packages/rpc-methods/src/permitted/index.ts

@@ -1,18 +1,15 @@
-import { enableWalletHandler, EnableWalletHooks } from './enable';
 import { getAppKeyHandler, GetAppKeyHooks } from './getAppKey';
 import { getSnapsHandler, GetSnapsHooks } from './getSnaps';
-import { installSnapsHandler, InstallSnapsHooks } from './installSnaps';
+import { requestSnapsHandler, RequestSnapsHooks } from './requestSnaps';
 import { invokeSnapSugarHandler } from './invokeSnapSugar';
 
-export type PermittedRpcMethodHooks = EnableWalletHooks &
-  GetAppKeyHooks &
+export type PermittedRpcMethodHooks = GetAppKeyHooks &
   GetSnapsHooks &
-  InstallSnapsHooks;
+  RequestSnapsHooks;
 
 export const handlers = [
-  enableWalletHandler,
   getAppKeyHandler,
   getSnapsHandler,
-  installSnapsHandler,
+  requestSnapsHandler,
   invokeSnapSugarHandler,
 ];