cg-fake-uaa

This is a fake User Account and Authentication (UAA) server for cloud.gov, useful for development and debugging.

Motivation

Authenticating with cloud.gov can be challenging when developing an app:

• It can be difficult or impossible to log in as multiple different users to manually test your application's functionality.
• If you're offline or on a spotty internet connection, authenticating with cloud.gov may be challenging.
• Because logging into cloud.gov usually involves 2 factor authentication, logging in can be slow and cumbersome, which can slow down development.
• At present, registering a new client ID, client secret, and callback URL with cloud.gov requires inconveniencing a cloud.gov administrator, as there's not yet a self-serve option for registering new apps.
• Debugging problems with the OAuth2 handshake can be difficult because you don't have much visibility into cloud.gov's internal state.

The fake UAA is intended to solve these problems by making it easy to host your own UAA server on your local system. The simplicity of its implementation and its debugging messages allow developers to easily understand what's going on during the OAuth2 handshake. It also makes it dead simple to log in as multiple different users.

Usage

To use this fake UAA, just download the latest release, uncompress the archive, and run the binary in it:

./fake-cloud.gov

The output of this command will help you set things up from there.

Build Requirements

• Go 1.6

Once built, the executable binary is fully self-contained and can be distributed freely.

Development Quick Start

First, get dependencies:

go get -d ./...
go get -u github.com/jteeuwen/go-bindata/...

Then generate and build:

go generate
go build

Finally, run the server:

./cg-fake-uaa

During development, you can define FAKECLOUDGOV_DEBUG=yup to make the server fetch data files from the data directory instead of using the files embedded into the executable at build time.

To learn about changing any of the runtime options, run ./fake-cloud.gov -help.

Running Tests

go test

Running the Example Client

A node-based example OAuth2 client is in the example-client directory. To use it, run:

cd example-client
npm install
npm start

Then visit http://localhost:8000/.

Note that the server, ./fake-cloud.gov, must also be running in order for the client to work.

Limitations

The fake server currently has a lot of limitations, most notably:

• Only the openid scope is supported. That is, the server is only really built for giving you the logged-in user's email address.