webfiles

webfiles

webfiles is a simple file server with some fun features.

Dependencies are vendored with dep. Travis CI configuration is included.

Features

• Upload a file via POST, returning a JSON response including the file's unique identifier, and a JWT access token.
• Download a file via the file's unique identifier.
• User authentication is handled with JWT tokens.
• Tokens are generated automatically if one is not provided.
• A persistent server-side store is used to keep sessions valid between restarts of webfiles.
• Tokens may be provided by any of: (1) URL query such as ?jwt={the token}, (2) HTTP Authorization (Bearer) header, or (3) a cookie named "jwt". They are valid only if they were signed by the server.
• User to file association is managed with a Bolt DB.
• Includes a script, relaunch.sh, that works well with webhooks to pull changes from git, build, and restart webfiles.

Endpoints

• / - A basic HTML page with a file selection dialog for uploading.
• /token - Shows your current JWT token, which can be used to identify yourself.
• /upload - The file upload path, POST only. Response is JSON including file's UID and the user's current JWT.
• /user-files - Shows all files associated with you in a JSON array of file UIDs. User authentication via JWT.
• /file/{fileid} - The file download path. Requires user authorization.

Example

Instead of uploading from your web browser, which has no progress indicator presently, you can use curl as follows:

curl https://deploy.site.you/upload -F "fileupload=@UX490UAR-AS.302"

The response:

{
    "file": {
        "uid": "4b361b653e78c342",
        "file_name": "UX490UAR-AS.302",
        "file_size": 6488064
    },
    "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1NTk2Mzc2NzIsImlhdCI6MTUyODEwMTY3MiwidXNlciI6IjU3NUhNMjVXSjZLWUVESDI1R0E1M0NGVk41SVJGVlNLUkU0MzJFMjRDUERVT05CR1NKR0EifQ.K6AjhrnT0sJay9NyrQvCKvjnhrk9Hanic-86EtknetA"
}

The "uid" field is used with the /file/{fileid} endpoint to download the file. The "token" field contains the JWT associated to the user at time of upload. This token is required to download the file.

Requirements

• Go 1.9.x or 1.10.x.
• git, internet, the usual.

Installation

Build from Source

The following instructions assume a Unix-like shell (e.g. bash).

• Install Go

• Verify Go installation:

  go env GOROOT GOPATH
  

• Ensure $GOPATH/bin is on your $PATH.

• Install dep, the dependency management tool.

  go get -u -v github.com/golang/dep/cmd/dep
  

• Clone the repository. It must be cloned into the following directory.

  git clone https://github.com/chappjc/webfiles $GOPATH/src/github.com/chappjc/webfiles
  

• Fetch dependencies, and build the webfiles executable.

  cd $GOPATH/src/github.com/chappjc/webfiles
  dep ensure
  # install all executables
  go install ./cmd/...
  # or build the webfiles executable in the workspace
  cd cmd/webfiles
  go build