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If you want to authenticate your application or script with Teamwork Cloud, you can use the following procedures.

Pre-configuring Authentication server

Authentication server implements the OpenID Connect standard with several customizations. To access the OpenID Connect configuration, go to https://<auth_server_host>:<port>/authentication/.well-known/openid-configuration.

The Authentication server must be configured to accept new client applications by changing these parameters in authserver.properties file:

1. Add URL of the client app to the whitelist, separate URLs with comma: authentication.redirect.uri.whitelist. This can be either full URL where users should be redirected back from the Authentication server, or just the beginning of it. Authorization endpoint will not accept redirect uri parameters that cannot be found in the whitelist.
2. Add new client IDs, separated with comma: authentication.client.ids. You might need to uncomment this line first. Authorization endpoint will not accept client_id parameter that cannot be found in this list.

There are a few deviations from standard OpenID Connect specification:

• When invoking token endpoint, HTTP header X-Auth-Secret with secret must be passed with value from authserver.properties, parameter authentication.client.secret.
• ID tokens have expiration time (configuration property authentication.token.expirity), they must be refreshed through the token endpoint by passing refresh tokens.

To call TWC REST API with generated authentication token, the token should be send in the header of the request: 

Authorization: Token <received_id_token>

Authentication with user interaction

The basic Authorization flow should be as follows:

1. Redirect the user to the AuthServer with HTTP GET parameters: 

scope=openid
redirect_uri=<your_app_url>
client_id=<your_client_id>
response_type=code

2. After user signs in, receive HTTP GET request with code parameter.

3. Send HTTP POST request to the token endpoint of the Authentication server with HTTP header X-Auth-Secret and parameters: 

scope=openid
redirect_uri=<your_app_url>
client_id=<your_client_id>
grant_type=authorization_code
code=<code_received_after_user_signs_in>

4. Receive back the JSON response with ID Token that can be used to authorize with TWC and refresh token that later should be used to refresh ID Token.

5. Refresh the ID Token by sending HTTP POST request to the token endpoint of the AuthServer with HTTP header X-Auth-Secret and parameters: 

scope=openid
redirect_uri=<your_app_url>
client_id=<your_client_id>
grant_type=refresh_token   
refresh_token=<refresh_token_value>

Authentication without user interaction

To get a token without user interaction, i.e. use some predefined username and password and make only server-server calls, system needs to send HTTP POST request to the token endpoint of the Authentication server with HTTP headers X-Auth-Secret and parameters:

• Headers: 

  Code Block
  X-Auth-Secret: <secret from authentication.client.secret >

Authorization: Basic xxxxxxxxx, where xxxxxx is base64 encoded username:password

• Query parameters: 

  Code Block
  grant_type=client_credentials client_id=<your_client_id>

curl -v -k -H "Authorization: Token
eyJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJBZG1pbmlzdHJhdG9yIiwiYXVkIjoidHdjLXJlc3QtYXBp
IiwiaXNzIjoiaHR0cHM6XC9cLzEyNy4wLjAuMTo4NTU1XC9hdXRoZW50aWNhdGlvbiIsImV4cCI6M
TYwNjI5OTc3NywiaWF0IjoxNjA2Mjk4ODc3fQ.bA-
S5hHeSlV8AFoQVzzfIseC3qlmqQoBQREiapHN6I5CcvwetKdSVztWKkssSGjm31Y1zqoULio7_1Ma
mtGBbbzvA1WWQYFRiYk0D612yNDv4uNHBbNLNEv61TYNLwdPwPh0atVRehkh-
LSgjipXTvXj4mZViE0NHKIG9U7htA9Zzvxvck2JDXe_eU2-
4TCNm8II89ROaEb1tZ5nD84ieRbzJWqrcVTdqU2YfbIUeew5Nir8obkLYgixBXFKWsTHi3jNuoBx3
KcAIyZqL6cjtsCER4wbk4PEEDC57UVsOcsXWr6yvXIoVdJMOiDHo_fJMkgOjDqSyIL-2B21O-Y-GA"
https://127.0.0.1:8111/osmc/login

> GET /osmc/login HTTP/1.1
> Host: 127.0.0.1:8111
> User-Agent: curl/7.55.1
> Accept: */*
> Authorization: Token
eyJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJBZG1pbmlzdHJhdG9yIiwiYXVkIjoidHdjLXJlc3QtYXBp
IiwiaXNzIjoiaHR0cHM6XC9cLzEyNy4wLjAuMTo4NTU1XC9hdXRoZW50aWNhdGlvbiIsImV4cCI6M
TYwNjI5OTc3NywiaWF0IjoxNjA2Mjk4ODc3fQ.bA-
S5hHeSlV8AFoQVzzfIseC3qlmqQoBQREiapHN6I5CcvwetKdSVztWKkssSGjm31Y1zqoULio7_1Ma
mtGBbbzvA1WWQYFRiYk0D612yNDv4uNHBbNLNEv61TYNLwdPwPh0atVRehkh-
LSgjipXTvXj4mZViE0NHKIG9U7htA9Zzvxvck2JDXe_eU2-
4TCNm8II89ROaEb1tZ5nD84ieRbzJWqrcVTdqU2YfbIUeew5Nir8obkLYgixBXFKWsTHi3jNuoBx3
KcAIyZqL6cjtsCER4wbk4PEEDC57UVsOcsXWr6yvXIoVdJMOiDHo_fJMkgOjDqSyIL-2B21O-Y-GA
>
< HTTP/1.1 204 No Content
< Content-Length: 0
< Content-Type: application/octet-stream
< Date: Wed, 25 Nov 2020 10:08:44 GMT
< Accept-Ranges: bytes
< Server: Restlet-Framework/2.2.3
< Vary: Accept-Charset, Accept-Encoding, Accept-Language, Accept
< Set-Cookie: twc-rest-current-user=Administrator; Path=/osmc; Expires=Wed, 25 Nov 2020 10:23:44 GMT
< Set-Cookie: twc-rest-session-id=f40ef933-5461-4058-a1e7-9b8d4021aa8a; Path=/osmc; Expires=Wed, 25 Nov 2020 10:23:44 GMT
<
* Connection #0 to host 127.0.0.1 left intact

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