Contributor Guidelines

Installation and setup

Clone the repo
Open Chrome
Go to chrome://extensions/
Enable developer mode (checkbox on the top right)
Click "Load unpacked extension..."
Point to the repo's directory

Note that for development, you should always be using the staging server, which uses a self-signed ssl certificate. By default, your browser will reject this certificate as insecure. Therefore, in order to register or send and receive messages of any kind, you must first visit https://textsecure-service-staging.whispersystems.org/ in a new tab and click through the warnings to allow the certificate. If at any time you notice a console error about an "INSECURE RESPONSE" or "Handshake was canceled", repeat this step.

Once that's done, in the extension's options page, you can register for TextSecure:

Select "Register" under "I'm new to TextSecure".
Enter a real phone number (Google Voice numbers work too) and country combination and choose to send an SMS. You will receive a real SMS.
Enter the verification code you received by SMS.

You should now be able to use the extension. If you need to re-register, open a browser console within the extension options page (or inspect background.html) and execute localStorage.clear() to delete your account information.

Chrome profiles

Don't have any friends to help you test the extension? Make a couple of Chrome profiles. Each one will need its own Google account and Google Voice number. Each one will have to repeat the setup process documented above, including re-accepting the staging server cert under each profile. This is a tedious process, but once you are done you will be able to send messages back and forth between different profiles, allowing you to observe both endpoints of a conversation.

Pull requests

So you wanna make a pull request? Please observe the following guidelines.

Rebase your changes on the latest master branch, resolving any conflicts that may arise. This ensures that your changes will merge cleanly when you open your PR.
Run the tests locally by opening the test page in your browser. A test-breaking change will not be merged.
Make sure the diff between our master and your branch contains only the minimal set of changes needed to implement your feature or bugfix. This will make it easier for the person reviewing your code to approve the changes. Please do not submit a PR with commented out code or unfinished features.
Don't have too many commits. If your branch contains spurious commits along the lines of "Oops, reverted this change" or "Just experiementing, will delete this later", please squash or rebase those changes out.
Don't have too few commits. If you have a complicated or long lived feature branch, it may make sense to break the changes up into logical atomic chunks to aid in the review process.
Provide a well written and nicely formatted commit message. See this link for some tips on formatting. As far as content, try to include in your summary
1. What you changed
2. Why this change was made (including git issue # if appropriate)
3. Any relevant technical details or motivations for your implementation choices that may be helpful to someone reviewing or auditing the commit history in the future. When in doubt, err on the side of a longer commit message.

Dependencies

Note: Unless you need to make changes to dependencies, you can skip this section and just use the checked in versions.

Dependencies are managed by bower and built with grunt. To change them, you'll need to install node and npm, then run npm install to install bower, grunt, and related plugins.

Adding a bower component

Add the package name and version to bower.json under 'dependencies' or bower install package-name --save

Next update the "preen" config in bower.json with the list of files we will actually use from the new package, e.g.:

  "preen": {
    "package-name": [
      "path/to/main.js",
      "directory/**/*.js"
    ],
    ...
  }

If you'd like to add the new dependency to js/components.js to be included on all html pages, simply append the package name to the concat.app list in bower.json. Take care to insert it in the order you would like it concatenated.

Now, run grunt to delete unused package files and build js/components.js.

Finally, stage and commit changes to bower.json, js/components.js, and components/. The latter should be limited to files we actually use.

Tests

Please write tests! Our testing framework is mocha and our assertion library is chai.

To run tests, open test/index.html in your browser. Note that

Some tests depend on the native client module. These will fail unless you load the test page from the chrome-extension:// namespace (as opposed to the file:// namespace or via a local webserver.
Some tests may read, write or clear localStorage. It is recommended that you create a Chrome user profile just for running tests to avoid clobbering any existing account and message data.

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