feat: Add CAIP-25 permission and adapters to @metamask/multichain

README.md

@@ -26,6 +26,7 @@ This repository contains the following packages [^fn1]:
 - [`@metamask/keyring-controller`](packages/keyring-controller)
 - [`@metamask/logging-controller`](packages/logging-controller)
 - [`@metamask/message-manager`](packages/message-manager)
+- [`@metamask/multichain`](packages/multichain)
 - [`@metamask/name-controller`](packages/name-controller)
 - [`@metamask/network-controller`](packages/network-controller)
 - [`@metamask/notification-controller`](packages/notification-controller)
@@ -71,6 +72,7 @@ linkStyle default opacity:0.5
   keyring_controller(["@metamask/keyring-controller"]);
   logging_controller(["@metamask/logging-controller"]);
   message_manager(["@metamask/message-manager"]);
+  multichain(["@metamask/multichain"]);
   name_controller(["@metamask/name-controller"]);
   network_controller(["@metamask/network-controller"]);
   notification_controller(["@metamask/notification-controller"]);
@@ -93,14 +95,15 @@ linkStyle default opacity:0.5
   address_book_controller --> controller_utils;
   announcement_controller --> base_controller;
   approval_controller --> base_controller;
-  assets_controllers --> accounts_controller;
-  assets_controllers --> approval_controller;
   assets_controllers --> base_controller;
   assets_controllers --> controller_utils;
+  assets_controllers --> polling_controller;
+  assets_controllers --> accounts_controller;
+  assets_controllers --> approval_controller;
   assets_controllers --> keyring_controller;
   assets_controllers --> network_controller;
-  assets_controllers --> polling_controller;
   assets_controllers --> preferences_controller;
+  base_controller --> json_rpc_engine;
   chain_controller --> base_controller;
   composable_controller --> base_controller;
   composable_controller --> json_rpc_engine;
@@ -110,8 +113,8 @@ linkStyle default opacity:0.5
   eth_json_rpc_provider --> json_rpc_engine;
   gas_fee_controller --> base_controller;
   gas_fee_controller --> controller_utils;
-  gas_fee_controller --> network_controller;
   gas_fee_controller --> polling_controller;
+  gas_fee_controller --> network_controller;
   json_rpc_middleware_stream --> json_rpc_engine;
   keyring_controller --> base_controller;
   keyring_controller --> message_manager;
@@ -145,6 +148,9 @@ linkStyle default opacity:0.5
   preferences_controller --> controller_utils;
   preferences_controller --> keyring_controller;
   profile_sync_controller --> base_controller;
+  profile_sync_controller --> keyring_controller;
+  profile_sync_controller --> accounts_controller;
+  profile_sync_controller --> network_controller;
   queued_request_controller --> base_controller;
   queued_request_controller --> controller_utils;
   queued_request_controller --> json_rpc_engine;
@@ -155,26 +161,26 @@ linkStyle default opacity:0.5
   selected_network_controller --> json_rpc_engine;
   selected_network_controller --> network_controller;
   selected_network_controller --> permission_controller;
-  signature_controller --> approval_controller;
   signature_controller --> base_controller;
   signature_controller --> controller_utils;
+  signature_controller --> message_manager;
+  signature_controller --> approval_controller;
   signature_controller --> keyring_controller;
   signature_controller --> logging_controller;
-  signature_controller --> message_manager;
-  transaction_controller --> accounts_controller;
-  transaction_controller --> approval_controller;
   transaction_controller --> base_controller;
   transaction_controller --> controller_utils;
+  transaction_controller --> accounts_controller;
+  transaction_controller --> approval_controller;
+  transaction_controller --> eth_json_rpc_provider;
   transaction_controller --> gas_fee_controller;
   transaction_controller --> network_controller;
-  transaction_controller --> eth_json_rpc_provider;
-  user_operation_controller --> approval_controller;
   user_operation_controller --> base_controller;
   user_operation_controller --> controller_utils;
+  user_operation_controller --> polling_controller;
+  user_operation_controller --> approval_controller;
   user_operation_controller --> gas_fee_controller;
   user_operation_controller --> keyring_controller;
   user_operation_controller --> network_controller;
-  user_operation_controller --> polling_controller;
   user_operation_controller --> transaction_controller;
 ```
 

packages/multichain/CHANGELOG.md

@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+[Unreleased]: https://github.com/MetaMask/core/

packages/multichain/LICENSE

@@ -0,0 +1,20 @@
+MIT License
+
+Copyright (c) 2024 MetaMask
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

packages/multichain/README.md

@@ -0,0 +1,15 @@
+# `@metamask/multichain`
+
+Provides types, helpers, adapters, and wrappers for facilitating CAIP Multichain sessions
+
+## Installation
+
+`yarn add @metamask/multichain`
+
+or
+
+`npm install @metamask/multichain`
+
+## Contributing
+
+This package is part of a monorepo. Instructions for contributing can be found in the [monorepo README](https://github.com/MetaMask/core#readme).

packages/multichain/jest.config.js

@@ -0,0 +1,26 @@
+/*
+ * For a detailed explanation regarding each configuration property and type check, visit:
+ * https://jestjs.io/docs/configuration
+ */
+
+const merge = require('deepmerge');
+const path = require('path');
+
+const baseConfig = require('../../jest.config.packages');
+
+const displayName = path.basename(__dirname);
+
+module.exports = merge(baseConfig, {
+  // The display name when running multiple projects
+  displayName,
+
+  // An object that configures minimum threshold enforcement for coverage results
+  coverageThreshold: {
+    global: {
+      branches: 83.05,
+      functions: 87.37,
+      lines: 86.73,
+      statements: 87.17,
+    },
+  },
+});