Create and test access control

This guide shows how to create and test access policies in Aidbox

Simple Access Policy
You can test access policies with Postman.
Access the Auth Clients tab and create a new client.
resourceType: Client
id: postman
secret: secret
grant_types: ['basic']
Access the Access Control tab and create new access policy with the code below. Let's consider the work of this policy. In this schema, two constraints are introduced:
1.it is allowed to use only the GET method;
2.it is allowed to use only request URIs starting with "/fhir/".
JSON-schema version:
resourceType: AccessPolicy
id: policy-for-postman
engine: json-schema
schema:
  required:
    - client
    - uri
    - request-method
  properties:
    uri:
      type: string
      pattern: '^/fhir/.*'
    client:
      required:
        - id
      properties:
        id:
          const: postman
    request-method:
      const: get
Matcho engine version:
resourceType: AccessPolicy
id: policy-for-postman
engine: matcho
matcho:
  client:
    id: postman
  uri: '#^/fhir/.*'
  request-method: get
Now, let's execute requests in Postman.
A request succeeds if at least one of the policies is valid for it.
Positive Test
GET {{base}}/fhir/Patient
Negative Test
POST {{base}}/fhir/Patient
Policy Debugging
Let's use the parameter __debug=policy in requests to see which JSON-schema validation returned true/false.
Positive Test
GET {{base}}/fhir/Patient
Negative Test
POST {{base}}/fhir/Patient
See the full documentation Access Policies.
Access Policies for Users
Previously, we tested access control for clients using Postman as a client. Now, let's create and test access policies for users. We will still need our client credentials.
First, we need to create a couple of users.
Access the Users tab and create two users in Aidbox.Cloud.
User 1
data:
  name: Camila Harrington
  roles:
    - Administrator
    - Doctor
email: [email protected]-samurai.io
password: password1
id: user1
resourceType: User
User 2
data:
  name: Jazmin Holmes
  roles:
    - Patient
email: [email protected]-samurai.io
password: password2
id: user2
resourceType: User
Read-Only Access for Patient Role
Now, let's define read-only access for the 'Patient' role. Create an access policy with the code below.
# matcho version
resourceType: AccessPolicy
id: policy-for-postman-users-role-patient
engine: matcho
matcho:
  user:
    data: { roles: {$contains: Patient} }
  client: { id: postman }
  request-method: get
resourceType: AccessPolicy
id: policy-for-postman-users-role-patient
engine: json-schema
schema:
  required:
    - client
    - user
    - request-method
  properties:
    user:
      required:
        - data
      properties:
        data:
          required:
            - roles
          properties:
            roles:
              not:
                items:
                  not:
                    enum:
                      - Patient
              type: array
    client:
      required:
        - id
      properties:
        id:
          const: postman
    request-method:
      const: get
description: Read-only access for users with role Patient from client Postman
Full Access for Administrator Role
Let's set access rights for administrators.
# matcho version
engine: matcho
matcho:
  request-method: {$enum: ['get','post','put','delete','patch']}
  user:
    data: {roles: {$contains: 'Administrator'}}
  client: { id: postman }
engine: json-schema
schema:
  required:
    - client
    - user
    - request-method
  properties:
    user:
      required:
        - data
      properties:
        data:
          required:
            - roles
          properties:
            roles:
              not:
                items:
                  not:
                    enum:
                      - Administrator
              type: array
    client:
      required:
        - id
      properties:
        id:
          const: postman
    request-method:
      enum:
        - get
        - post
        - put
        - delete
        - option
        - patch
        - head
description: Full access for users with role Administrator from client Postman
id: policy-for-postman-users-role-administrator
resourceType: AccessPolicy
Test User Access Control
Get Bearer Token for User
Now, let's test the policies in Postman.
First, we need to get bearer token for a user and a client.
This line grant_type: password should not be changed.
POST {{base}}/auth/token
​
client_id: postman
client_secret: <your-client-password>
username: [email protected]-samurai.io
password: <your-user1-password>
grant_type: password
Execute the request and copy the received access_token value. Paste it to your test request in the Authorization header with the word Bearer before it.
E.g. you got the access_token:
{
    "access_token": "45ab638d-9a3a-492b-b2df-0d8295c108fc",
    "refresh_token": "eyJzZXNzaW9uX2lkIjoiODJhYjYzOGQtOWEzYS00OTJiLWIyZGYtMGQ4Mjk1YzEwOGZjIiwidXNlcl123456InVzZXIxIiwiaWF0IjoxNTQyMDMxODkyfQpvbjE4SUxtRXhVQWJmcl8zZUVGNTZUTl9vV0E",
    "token_type": "bearer"
}
Your authorization header will be: Bearer 45ab638d-9a3a-492b-b2df-0d8295c108fc.
Execute Requests with User Bearer Token
Now, let's execute requests from users to test their access.
Test user request with GET
GET {{base}}/fhir/Patient?__debug=policy
Test user request with POST
POST {{base}}/fhir/Patient?__debug=policy
The results of the schema validation should be the following:
Request/User
User 1 (Administrator)
User 2 (Patient)
GET
True
True
POST
True
False
See the full documentation Resource Owner Credentials Grant.
Signed RPC policy token
You can create policy-token to access rpc without creating AccessPolicy resource
To do that call aidbox.policy/create-policy-token RPC method:
POST {{base}}/rpc
​
method: aidbox.policy/create-policy-token
params:
  expiration: 3
  methods:
    aidbox.sdc/read-document:
	  params:
	    id: doc-1
	aidbox.sdc/save-document:
	  params:
	    id: doc-1
This RPC method will return you a JWT token, which can be used only to call two methods with params you described:
aidbox.sdc/read-document
aidbox.sdc/save-document
To make a call RPC with this token just pass it in body:
POST {{base}}/rpc
​
method: aidbox.sdc/read-document
params:
  id: doc-1
policy: <token from previous step>

Request/User	User 1 (Administrator)	User 2 (Patient)
GET	True	True
POST	True	False

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Last modified 2mo ago