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SecurityContext

SecurityContext is used by UnityCatalogServer to create the following:

Creating Instance

SecurityContext takes the following to be created:

SecurityContext is created alongside UnityCatalogServer.

Configuration Directory

SecurityContext is given the path of a configuration directory when created.

The configuration directory is supposed to contain the following files:

UnityCatalogServer

UnityCatalogServer uses etc/conf as the configuration directory.

SecurityConfiguration

SecurityContext is given a SecurityConfiguration when created.

SecurityContext uses the SecurityConfiguration to initialize the following properties:

Property Value
rsaPublicKey rsaPublicKey
rsaPrivateKey rsaPrivateKey
algorithm algorithmRSA
keyId getKeyId

Initialization

SecurityContext creates a service token as follows:

Token Claim Value
Subject (sub) Service Name
Issuer (iss) Local Issuer
Issued At (iat) Current time (in millis)
Key Id (kid) Key of this SecurityConfiguration
JWT Id (jti) Random UUID
Type (type) SERVICE
Subject (sub) admin

SecurityContext creates the internal certs file.

SecurityContext creates the service token file.

In the end, SecurityContext prints out the following INFO message to the logs (with the content of certs.json):

--- Internal Certs Configuration --
[certs.json]

certs.json

SecurityContext uses certs.json in the configuration directory to be an internal certs file.

certs.json is used when:

token.txt

SecurityContext creates token.txt (in the configuration directory) as the service token.

Token Claim Value
Subject (sub) Service Name
Issuer (iss) Local Issuer
Issued At (iat) Current time (in millis)
Key Id (kid) getKeyId of this SecurityConfiguration
JWT Id (jti) Random UUID
Type (type) SERVICE
Subject (sub) admin

Note

The difference between this service token (token.txt) and access tokens to be created are as follows:

Token Claim Service Token Access Tokens
Type (type) SERVICE ACCESS
Subject (sub) admin The subject (based on a DecodedJWT)

Create Access Token

String createAccessToken(
  DecodedJWT decodedJWT)

createAccessToken determines the subject based on the following claims in the given DecodedJWT:

  • email (preferred)
  • sub

createAccessToken creates an access token as follows:

Token Claim Value
Subject (sub) Service Name
Issuer (iss) Local Issuer
Issued At (iat) Current time (in millis)
Key Id (kid) getKeyId of this SecurityConfiguration
JWT Id (jti) Random UUID
Type (type) ACCESS
Subject (sub) The subject (based on the given DecodedJWT)

SecurityContext signs the service token with the algorithm (of this SecurityConfiguration).


createAccessToken is used when:

Logging

Enable ALL logging level for io.unitycatalog.server.security.SecurityContext logger to see what happens inside.

Add the following line to etc/conf/server.log4j2.properties:

logger.SecurityContext.name = io.unitycatalog.server.security.SecurityContext
logger.SecurityContext.level = all

Refer to Logging.