Gitling Smart HTTP Git Server

Gitling is a smart HTTP git server designed for multi-tenant git contexts. Gitling allows for making an optional HTTP authentication request to an external URL in order to verify a push and set its location.

Note: Gitling only works for HTTP-based git. If you're looking for custom SSH git authentication (a la GitHub/Heroku), I wish you luck.

Installation

If you already have a go environment up and running, it's quite simple:

go get github.com/divshot/gitling

If you don't, you'll need to make that happen first. Binary distribution

Usage

Basic usage is as follows:

gitling --auth-url https://example.com/auth -p 8080 -r /path/to/root -b /usr/bin/git

Just try gitling -h if you need help with specific options.

Authorization Endpoint

If you specify an authorization URL using -a or --auth-url, Gitling will make an HTTP POST request to the specified URL.The request will have a JSON body containing details about the request. For instance, if I set my git remote as https://open:sesame@example.com/project-name.git and pushed, the request body would look like this:

{
  "username":"open",
  "password":"sesame",
  "path":"project-name.git"
}

Your response to this POST tells Gitling how to proceed. The first signal is the HTTP status code you return.

• 204: Authorization granted, path may be used without modification.
• 200: Authorization granted, response body as specified below.
• 401: Authentication failed (user/password combo did not grant access)
• 403: Authorization failed (user does not have access to repo at this path)
• 50x: If Gitling receives a 50x, it will print a generic error message.

In addition to HTTP status codes, a 200 response should be accompanied with a JSON object with one or more of the following keys:

• path: the path (relative to your project root) for the git repo.
• (TODO) read_only: if true, this user may not write to the repo, only read.
• (TODO) skip_create: don't create a new repository if one does not already exist.

If you don't specify a path, the path specified by the user will be used. For error responses (401, 403) the body of the response will be printed out for the user to see.

Roadmap

Before Release

• "Push to Create" automatically initialize a bare repo on authorized push
• --template, -t to point at directory for repo template

Sometime Later

• Allow for authentication via command, not just HTTP