Locust

Login form location utility forked from @buttercup/locust.

About

Locust helps find login forms by searching the DOM for common login form elements. It processes a page and returns targets which can be used for automating logins.

Installation

npm install @withuno/locust

Usage

import { LoginTarget } from "@withuno/locust";

const target = LoginTarget.find();

if (target) {
  const form = target.get("form");
  const usernameInput = target.get("username");
  const passwordInput = target.get("password");
  const submitButton = target.get("submit");

  usernameInput.value = "myUsername";
  passwordInput.value = "myPassword";
  submitButton.click();
}

The example above enters the username and password in the best form found on the page and then proceeds to submit that form (logging the user in).

To find all forms on a page, use the LoginTarget.findAll() method instead, which returns an array of login targets. You can then sort through these to find all the different login forms that may exist.

Note

LoginTarget.find() may return null if no form is found.

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Development

Environment Setup

1. First, download all dependencies using NPM:

   npm install

2. You can start serving a hot-reloading development server with the following command:

   npm run dev

Testing

Unit tests:

npm run test:unit

Integration tests:

npm run test:integration

On-demand integration test:

npm run test:integration <url>

# for example:
npm run test:integration https://github.com/login

VSCode Workspace Setup (optional)

Recommended Extensions:

• ESLint

Optimal Settings:

{
  // A listing of language IDs which should be validated by ESLint.
  // NOTE: If not installed, ESLint will show an error.
  "eslint.validate": [
    "javascript",
    "javascriptreact",
    "typescript",
    "typescriptreact"
  ],

  // ESLint rules that should be executed when computing `codeActionsOnSave`.
  // You can ignore rules using glob patterns (e.g.: "!@typescript-eslint/no-unsafe-assignment").
  "eslint.codeActionsOnSave.rules": [
    "*"
  ],

  // Code actions to be executed upon save.
  //
  // NOTE: To improve performance, code actions
  // should be "opt-in" on a per-extension basis.
  "editor.codeActionsOnSave": {
    "source.fixAll": false,
    "source.organizeImports": false,
    "source.fixAll.eslint": true,
  },
}