The `parserOptions.sourceType` config option in `.eslintrc.js` is used
to distinguish files that use ESM imports vs. files that do not.
The `import` plugin, specifically the `import/ambiguous` rule behaves
differently depending on this value. If a file is marked with
`sourceType` of `"module"`, then this rule will attempt to ensure that
the file does indeed have ESM imports and/or exports; otherwise it does
nothing.
In other words, files that use CJS imports are *not* "modules" according
to this setting, and therefore should not be marked with a `sourceType`
of `"module"`. This means we do not have to turn off the
`import/ambiguous` rule, as it will no longer trip up on these types of
files.
This commit allows developers to write TypeScript files and lint them
(either via a language server in their editor of choice or through the
`yarn lint` command).
The new TypeScript configuration as well as the updated ESLint
configuration not only includes support for parsing TypeScript files,
but also provides some compatibility between JavaScript and TypeScript.
That is, it makes it possible for a TypeScript file that imports a
JavaScript file or a JavaScript file that imports a TypeScript file to
be linted.
Note that this commit does not integrate TypeScript into the build
system yet, so we cannot start converting files to TypeScript and
pushing them to the repo until that final step is complete.
We would like to insert TypeScript into the ESLint configuration, and
because of the way that the current config is organized, that is not
easy to do.
Most files are assumed to be files that are suited for running in a
browser context. This isn't correct, as we should expect most files to
work in a Node context instead. This is because all browser-based files
will be run through a transpiler that is able to make use of
Node-specific variables anyway.
There are a couple of important ways we can categories files which our
ESLint config should be capable of handling well:
* Is the file a script or a module? In other words, does the file run
procedurally or is the file intended to be brought into an existing
file?
* If the file is a module, does it use the CommonJS syntax (`require()`)
or does it use the ES syntax (`import`/`export`)?
When we introduce TypeScript, this set of questions will become:
* Is the file a script or a module?
* If the file is a module, is it a JavaScript module or a TypeScript
module?
* If the file is a JavaScript module, does it use the CommonJS syntax
(`require()`) or does it use the ES syntax (`import`/`export`)?
To represent these divisions, this commit removes global rules — so now
all of the rules are kept in `overrides` for explicitness — and sets up
rules for CommonJS- and ES-module-compatible files that intentionally do
not overlap with each other. This way TypeScript (which has its own set
of rules independent from JavaScript and therefore shouldn't overlap
with the other rules either) can be easily added later.
Finally, this commit splits up the ESLint config into separate files and
adds documentation to each section. This way sets of rules which are
connected to a particular plugin (`jsdoc`, `@babel`, etc.) can be easily
understood instead of being obscured.
This PR adds `snaps` under Flask build flags to the extension. This branch is mostly equivalent to the current production version of Flask, excepting some bug fixes and tweaks.
Closes#11626
ESLint rules have been added to enforce our JSDoc conventions. These
rules were introduced by updating `@metamask/eslint-config` to v9.
Some of the rules have been disabled because the effort to fix all lint
errors was too high. It might be easiest to enable these rules one
directory at a time, or one rule at a time.
Most of the changes in this PR were a result of running
`yarn lint:fix`. There were a handful of manual changes that seemed
obvious and simple to make. Anything beyond that and the rule was left
disabled.
The ESLint config for the extension explicitly includes support for
Prettier. However, this is already being provided by our global ESLint
config (`@metamask/eslint-config`). Therefore there is no need to
include it here. In fact, this is causing weird issues where the `curly`
option is getting overridden somehow. After this change, these syntaxes
are invalid:
``` javascript
if (foo) return;
```
``` javascript
if (foo) return 'bar';
```
The ESLint config has been updated to v8. The breaking changes are:
* The Prettier rule `quoteProps` has been changed from `consistent` to
`as-needed`, meaning that if one key requires quoting, only that key is
quoted rather than all keys.
* The ESLint rule `no-shadow` has been made more strict. It now
prevents globals from being shadowed as well.
Most of these changes were applied with `yarn lint:fix`. Only the
shadowing changes required manual fixing (shadowing variable names were
either replaced with destructuring or renamed).
The dependency `globalThis` was added to the list of dynamic
dependencies in the build system, where it should have been already.
This was causing `depcheck` to fail because the new lint rules required
removing the one place where `globalThis` had been erroneously imported
previously.
A rule requiring a newline between multiline blocks and expressions has
been disabled temporarily to make this PR smaller and to avoid
introducing conflicts with other PRs.
# Permission System 2.0
## Background
This PR migrates the extension permission system to [the new `PermissionController`](https://github.com/MetaMask/snaps-skunkworks/tree/main/packages/controllers/src/permissions).
The original permission system, based on [`rpc-cap`](https://github.com/MetaMask/rpc-cap), introduced [`ZCAP-LD`](https://w3c-ccg.github.io/zcap-ld/)-like permissions to our JSON-RPC stack.
We used it to [implement](https://github.com/MetaMask/metamask-extension/pull/7004) what we called "LoginPerSite" in [version 7.7.0](https://github.com/MetaMask/metamask-extension/releases/tag/v7.7.0) of the extension, which enabled the user to choose which accounts, if any, should be exposed to each dapp.
While that was a worthwhile feature in and of itself, we wanted a permission _system_ in order to enable everything we are going to with Snaps.
Unfortunately, the original permission system was difficult to use, and necessitated the creation of the original `PermissionsController` (note the "s"), which was more or less a wrapper for `rpc-cap`.
With this PR, we shake off the yoke of the original permission system, in favor of the modular, self-contained, ergonomic, and more mature permission system 2.0.
Note that [the `PermissionController` readme](https://github.com/MetaMask/snaps-skunkworks/tree/main/packages/controllers/src/permissions/README.md) explains how the new permission system works.
The `PermissionController` and `SubjectMetadataController` are currently shipped via `@metamask/snap-controllers`. This is a temporary state of affairs, and we'll move them to `@metamask/controllers` once they've landed in prod.
## Changes in Detail
First, the changes in this PR are not as big as they seem. Roughly half of the additions in this PR are fixtures in the test for the new migration (number 68), and a significant portion of the remaining ~2500 lines are due to find-and-replace changes in other test fixtures and UI files.
- The extension `PermissionsController` has been deleted, and completely replaced with the new `PermissionController` from [`@metamask/snap-controllers`](https://www.npmjs.com/package/@metamask/snap-controllers).
- The original `PermissionsController` "domain metadata" functionality is now managed by the new `SubjectMetadataController`, also from [`@metamask/snap-controllers`](https://www.npmjs.com/package/@metamask/snap-controllers).
- The permission activity and history log controller has been renamed `PermissionLogController` and has its own top-level state key, but is otherwise functionally equivalent to the existing implementation.
- Migration number 68 has been added to account for the new state changes.
- The tests in `app/scripts/controllers/permissions` have been migrated from `mocha` to `jest`.
Reviewers should focus their attention on the following files:
- `app/scripts/`
- `metamask-controller.js`
- This is where most of the integration work for the new `PermissionController` occurs.
Some functions that were internal to the original controller were moved here.
- `controllers/permissions/`
- `selectors.js`
- These selectors are for `ControllerMessenger` selector subscriptions. The actual subscriptions occur in `metamask-controller.js`. See the `ControllerMessenger` implementation for details.
- `specifications.js`
- The caveat and permission specifications are required by the new `PermissionController`, and are used to specify the `eth_accounts` permission and its JSON-RPC method implementation.
See the `PermissionController` readme for details.
- `migrations/068.js`
- The new state should be cross-referenced with the controllers that manage it.
The accompanying tests should also be thoroughly reviewed.
Some files may appear new but have just moved and/or been renamed:
- `app/scripts/lib/rpc-method-middleware/handlers/request-accounts.js`
- This was previously implemented in `controllers/permissions/permissionsMethodMiddleware.js`.
- `test/mocks/permissions.js`
- A truncated version of `test/mocks/permission-controller.js`.
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
This PR adds an e2e test to ensure that the background and UI environments are locked down. It reuses the logic from the `protect-intrinsics.test.js`, and runs in both Chrome and Firefox.
This PR enables the exclusion of JavaScript and JSON source by `buildType`, and enables the running of `eslint` under LavaMoat. 80-90% of the changes in this PR are `.patch` files and LavaMoat policy additions.
The file exclusion is designed to work in conjunction with our code fencing. If you forget to fence an import statement of an excluded file, the application will now error on boot. **This PR commits us to a particular naming convention for files intended only for certain builds.** Continue reading for details.
### Code Fencing and ESLint
When a file is modified by the code fencing transform, we run ESLint on it to ensure that we fail early for syntax-related issues. This PR adds the first code fences that will be actually be removed in production builds. As a consequence, this was also the first time we attempted to run ESLint under LavaMoat. Making that work required a lot of manual labor because of ESLint's use of dynamic imports, but the manual changes necessary were ultimately quite minor.
### File Exclusion
For all builds, any file in `app/`, `shared/` or `ui/` in a sub-directory matching `**/${otherBuildType}/**` (where `otherBuildType` is any build type except `main`) will be added to the list of excluded files, regardless of its file extension. For example, if we want to add one or more pages to the UI settings in Flask, we'd create the folder `ui/pages/settings/flask`, add any necessary files or sub-folders there, and fence the import statements for anything in that folder. If we wanted the same thing for Beta, we would name the directory `ui/pages/settings/beta`.
As it happens, we already organize some of our source files in this way, namely the logo JSON for Beta and Flask builds. See `ui/helpers/utils/build-types.js` to see how this works in practice.
Because the list of ignored filed is only passed to `browserify.exclude()`, any files not bundled by `browserify` will be ignored. For our purposes, this is mostly relevant for `.scss`. Since we don't have anything like code fencing for SCSS, we'll have to consider how to handle our styles separately.
The extension version used throughout the wallet is now normalized to a
SemVer-compliant version that matches the version used in
`package.json`. We use this version for display on the "About" page,
and we attach it to all error reports and metric events, so it's
important that we format it consistently so that we can correlate
events on the same version across different browsers.
This normalization step is necessary because Firefox and Chrome both
have different requirements for the extension version, and neither is
SemVer-compliant.
* lockdown - breakout making globalThis properties non-writable into lockdown-more.js
* Update app/scripts/lockdown-more.js
Co-authored-by: David Walsh <davidwalsh83@gmail.com>
* Update app/scripts/lockdown-more.js
Co-authored-by: Erik Marks <25517051+rekmarks@users.noreply.github.com>
Co-authored-by: David Walsh <davidwalsh83@gmail.com>
Co-authored-by: Erik Marks <25517051+rekmarks@users.noreply.github.com>
* Jestify migrations/
* Lint exclude migrations from mocha config, and add inclusion to jest config
* Add migration tests to jest config
* Exclude/ignore migration tests
* Set process.env.IN_TEST to true when running tests locally
This PR adds build-time code exclusion by means of code fencing. For details, please see the README in `./development/build/transforms`. Note that linting of transformed files as a form of validation is added in a follow-up, #12075.
Hopefully exhaustive tests are added to ensure that the transform works according to its specification. Since these tests are Node-only, they required their own Jest config. The recommended way to work with multiple Jest configs is using the `projects` field in the Jest config, however [that feature breaks coverage collection](https://github.com/facebook/jest/issues/9628). That being the case, I had to set up two separate Jest configs. In order to get both test suites to run in parallel, Jest is now invoked via a script, `./test/run-jest.sh`.
By way of example, this build system feature allows us to add fences like this:
```javascript
this.store.updateStructure({
...,
GasFeeController: this.gasFeeController,
TokenListController: this.tokenListController,
///: BEGIN:ONLY_INCLUDE_IN(beta)
PluginController: this.pluginController,
///: END:ONLY_INCLUDE_IN
});
```
Which at build time are transformed to the following if the build type is not `beta`:
```javascript
this.store.updateStructure({
...,
GasFeeController: this.gasFeeController,
TokenListController: this.tokenListController,
});
```
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
This PR makes ~all named intrinsics in all of our JavaScript processes non-modifiable. A named intrinsic is any property specified by the ECMAScript specification that exists on `globalThis` when the JavaScript process starts. We say that a property is non-modifiable if it is non-configurable and non-writable. We make exceptions for properties that meet any of the following criteria:
1. Properties that are non-configurable by the time `lockdown-run.js` is executed are not modified, because they can't be.
2. Properties that have accessor properties (`get` or `set`) are made non-configurable, but their writability cannot be modified, and is therefore left unchanged. It's unclear how many of the named intrinsics this applies to, if any, but it's good defensive programming, regardless.
* Swaps: Show a network name dynamically in a tooltip
* Replace “Ethereum” with “$1”, change “Test” to “Testnet”
* Replace 이더리움 with $1
* Translate network names, use ‘Ethereum’ by default if a translation is not available yet
* Reorder messages to resolve ESLint issues
* Add a snapshot test for the FeeCard component, increase Jest threshold
* Enable snapshot testing into external .snap files in ESLint
* Add the “networkNameEthereum” key in ko/messages.json, remove default “Ethereum” value
* Throw an error if chain ID is not supported by the Swaps feature
* Use string literals when calling the `t` fn,
* Watch Jest tests silently (no React warnings in terminal, only errors)
* Add @testing-library/jest-dom, import it before running Jest tests
* Add snapshot testing of Swaps’ React components for happy paths, increase minimum threshold for Jest
* Add the test/jest folder for Jest setup and shared functions, use it in Swaps Jest tests
* Fix ESLint issues, update linting config
* Enable ESLint for .snap files (Jest snapshots), throw an error if a snapshot is bigger than 50 lines
* Don’t run lint:fix for .snap files
* Move `createProps` outside of `describe` blocks, move store creation inside tests
* Use translations instead of keys, update a rendering function to load translations
* Make sure all Jest snapshots are shorter than 50 lines (default limit)
* Add / update props for Swaps tests
* Fix React warnings when running tests for Swaps
* Swaps: Show a network name dynamically in a tooltip
* Replace “Ethereum” with “$1”, change “Test” to “Testnet”
* Replace 이더리움 with $1
* Translate network names, use ‘Ethereum’ by default if a translation is not available yet
* Reorder messages to resolve ESLint issues
* Add a snapshot test for the FeeCard component, increase Jest threshold
* Enable snapshot testing into external .snap files in ESLint
* Add the “networkNameEthereum” key in ko/messages.json, remove default “Ethereum” value
* Throw an error if chain ID is not supported by the Swaps feature
* Use string literals when calling the `t` fn,
* Remove periodic calls to the /featureFlag API
* Always show the Swap button on the main page
* Check if the Swaps feature is enabled, show loading animation while waiting
* Reuse an existing useEffect call
* Use ‘isFeatureFlagLoaded’ in React’s state, resolve lint issues
* Add a watch mode for Jest testing
* Add unit tests for Swaps: fetchSwapsLiveness, add /ducks/swaps into Jest testing
* Remove Swaps Jest tests from Mocha’s ESLint rules
* Ignore Swaps Jest tests while running Mocha, update paths
* Increase test coverage to the current max
* Fix ESLint issues for Swaps
* Enable the Swaps feature by default and after state reset, remove loading screen before seeing Swaps
* Update Jest config, fix tests
* Update Jest coverage threshold to the current maximum
* Update ESLint rule in jest.config.js
* Disable the “Review Swap” button if the feature flag hasn’t loaded yet
* Update jest threshold
* Setup jest config
* Adjust test for jest.
* Adjust lint config
* Omit swaps ui folder for unit testing
* Omit swaps from test:unit:lax
* Add jest.config.js to script files
* Restore mocks rather than clearing them.
* Update jest config and adjust lint to include subdirs
* Convert view-quote-price-difference test to jest
* Add jest ci and ci coverage scripts. Add jest unit test to general test command
* Add test coverage to ci
* Use --ignore flag
* Fixup
* Add @metamask/eslint-config-jest
* Update .eslintrc.js
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
* Adds jest-coverage/
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
* build - declare background as html
* build - fill in empty file when a missing file is expected
* lint - fix
* Update development/build/manifest.js
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
* Update development/build/manifest.js
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
On Firefox 56 and Waterfox Classic, our `runLockdown.js` script throws
an error. This is fine on the HTML pages, as the next script tags still
get run without issue (though they don't benefit from the SES lockdown
sadly). But in the `contentscript`, an exception thrown here appears to
halt the execution of subsequent scripts.
To prevent the `contentscript` from crashing completely, lockdown
errors are now caught and logged. They are also logged to Sentry on the
pages where Sentry is setup.
The metrics e2e test would fail if the segment events still weren't
dispatched when the page loaded. The Segment events are sent on a set
interval, so it isn't abnormal for them to lag behind the page load
itself. The `waitUntilCalled` utility has been used to wait until all
required events have been dispatched.
The `wait-until-called` module was converted to an ES5 module, so that
it could be used from an e2e test. The optional `callCount` parameter
has also been added, to allow waiting for more than one call.
The `segmentSpy` had to be converted to a `segmentStub`, to allow the
`waitUntilCalled` utility to be used.
Refs #9663
See [`node/no-unsupported-features/node-builtins`][1] for more information.
This change enables `node/no-unsupported-features/node-builtins` and fixes the issue
raised by the rule.
The `engines.node` version is updated to reflect the version specified by the `.nvmrc`
file and the version used by CircleCI:
```bash
$ cat .nvmrc
v10.18.1
```
```bash
$ docker run --rm -it circleci/node@sha256:e16740707de2ebed45c05d507f33ef204902349c7356d720610b5ec6a35d3d88 node --version
v10.18.1
```
Refs #9663
See [`node/no-deprecated-api`][1] for more information.
This change enables `node/no-deprecated-api` and fixes the issues raised by the rule.
[1]:https://github.com/mysticatea/eslint-plugin-node/blob/v11.1.0/docs/rules/no-deprecated-api.md
The change to the way that `punycode` is imported is to address the fact that
third-party module is hidden by the built-in. This is a silly hack but it works.
`@metamask/eslint-config` has been updated to v4.1.0. This update
requires that we update `eslint` to v7 as well, which in turn requires
updating most `eslint`-related packages.
Most notably, `babel-eslint` was replaced with `@babel/eslint-parser`,
and `babel-eslint-plugin` was replaced by `@babel/eslint-plugin`. This
required renaming all the `babel/*` rules to `@babel/*`.
Most new or updated rules that resulted in lint errors have been
temporarily disabled. They will be fixed and re-enabled in subsequent
PRs.
Instead of using `eslint-plugin-json` for linting JSON files,
`prettier` is now used. `prettier` is capable of detecting and
correcting more problems than `eslint-plugin-json` can, such as
indentation.
All JSON files have been run through `prettier`. The changes are all
superficial.
This change updates the shared ESLint config to the latest published version,
v3.1.0.
From the config [`CHANGELOG.md`][1]: v3.0.1 has disabled `prefer-object-spread`
by default, so it has been enabled for this project.
[1]:https://github.com/MetaMask/eslint-config/blob/master/CHANGELOG.md
