class JWT::Claims::Expiration
The Expiration
class is responsible for validating the expiration claim (‘exp’) in a JWT
token.
Attributes
Public Class Methods
Source
# File lib/jwt/claims/expiration.rb, line 10 def initialize(leeway:) @leeway = leeway || 0 end
Initializes a new Expiration
instance.
@param leeway [Integer] the amount of leeway (in seconds) to allow when validating the expiration time. Default: 0.
Public Instance Methods
Source
# File lib/jwt/claims/expiration.rb, line 20 def verify!(context:, **_args) return unless context.payload.is_a?(Hash) return unless context.payload.key?('exp') raise JWT::ExpiredSignature, 'Signature has expired' if context.payload['exp'].to_i <= (Time.now.to_i - leeway) end
Verifies the expiration claim (‘exp’) in the JWT
token.
@param context [Object] the context containing the JWT
payload. @param _args [Hash] additional arguments (not used). @raise [JWT::ExpiredSignature] if the token has expired. @return [nil]