Description

A service for zipping and downloading a group of files with a common directory on the same machine as the service is running. Authorization is based on the properties username:string groups:string[] in the JWT.

Install

docker-compose up or npm install && npm start

Image creation

This instruction are necessary to create the image locally and than push it to the github image repository. We hope to automate the image release in the near future.

1. pull the latest code from github repository develop branch
2. create the image locally > docker build -f CI/ESS/Dockerfile --tag ghcr.io/scicatproject/zip-service:<release> where release is something like alpha.n with n the next available number. Please check in the image repository available here for the next available release. At the time of this writing, the latest image is alpha:5., so the full command is: > docker build -f CI/ESS/Dockerfile --tag ghcr.io/scicatproject/zip-service:alpha.5
3. login in to github through docker > docker login ghcr.io
4. push the image > docker push ghcr.io/scicatproject/zip-service:alpha.<release> To follow up our example, the full command will be: > docker push ghcr.io/scicatproject/zip-service:alpha.5

Usage

main endpoint

The main endpoint will present a default form that can be used to test the download. The files presented in the form are included in the image available on the repository, and they are available just for testing. This form is provided for testing and has to be screened and monitored for security purposes.

zip with download

Zip requests are sent as POST to /zip, which redirect to a download progress page. The post body should have the following format:

data: {
  "jwt": "token",
  "directory": "/path/to/files",
  "files": ["file1","file2","file3"]
}

/zip shows a page with a progress bar, resulting in a downloadable zip-file.

zip in place

While zip with download is a two step process (the file is zipped to a temporary directory on the server and then downloaded from the browser), another route, /zip_in_place exists which zips the payload in the same time as downloading.

local.config.json

Required in the root directory.

property key	Data type	Description
zipDir	string	directory where generated zip files are stored. Note that zip-files are deleted periodically
zipRetentionMillis	number	The number of milliseconds zip files are stored before they're deleted
sessionSecret	string	Used to sign session ids to detect client side tampering
facility	string	Different facilities have different ways of authorizing file access. This property is used to determine which mechanism to use
dramDirectory	string	Upload directory?
testData	Object	Optional. Default input values at the index route
testData.jwt	string	Optional. Default jwt
testData.directory	string	Optional. Default directory
testData.files	string[]	Optional. Default files.

Example data

{
  "zipDir": "/tmpZip",
  "zipRetentionMillis": 3600000,
  "jwtSecret": "secret123",
  "sessionSecret": "fj9832mnsaf3j9adsa",
  "facility": "maxiv",
  "dramDirectory": "uploads/",
  "testData": {
    "jwt": "<jwtToken>",
    "directory": "<testFileDirectory>",
    "files": [
      "<testFileName1>",
      "<testFileName2>",
      "<testFileName3>",
    ]
  }
}