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README.md

Macaron-authz Build Status Coverage Status GoDoc

Macaron-authz is an authorization middleware for Macaron, it's based on https://github.com/casbin/casbin.

Installation

go get github.com/go-macaron/authz

Simple Example

package main

import (
	"net/http"

	"github.com/casbin/casbin"
	"github.com/go-macaron/authz"
	"gopkg.in/macaron.v1"
)

func main() {
	m := macaron.New()

	// load the casbin model and policy from files, database is also supported.
	e := casbin.NewEnforcer("authz_model.conf", "authz_policy.csv")
	m.Use(authz.Authorizer(e))

	// define your handler, this is just an example to return HTTP 200 for any requests.
	// the access that is denied by authz will return HTTP 403 error.
	m.Use(func(res http.ResponseWriter, req *http.Request) {
    	res.Write([]byte("Access allowed. "))
    })
}

How to control the access

The authorization determines a request based on {subject, object, action}, which means what subject can perform what action on what object. In this plugin, the meanings are:

  1. subject: the logged-on user name
  2. object: the URL path for the web resource like "dataset1/item1"
  3. action: HTTP method like GET, POST, PUT, DELETE, or the high-level actions you defined like "read-file", "write-blog"

For how to write authorization policy and other details, please refer to the Casbin's documentation.

Getting Help

License

This project is under Apache 2.0 License. See the LICENSE file for the full license text.

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