NetNewsWire/Frameworks/Account/Feedly/OAuthAcessTokenRefreshing.swift

47 lines
2.3 KiB
Swift

//
// OAuthAcessTokenRefreshing.swift
// Account
//
// Created by Kiel Gillard on 4/11/19.
// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
//
import Foundation
import RSWeb
/// Models section 6 of the OAuth 2.0 Authorization Framework
/// https://tools.ietf.org/html/rfc6749#section-6
public struct OAuthRefreshAccessTokenRequest: Encodable {
public let grantType = "refresh_token"
public var refreshToken: String
public var scope: String?
// Possibly not part of the standard but specific to certain implementations (e.g.: Feedly).
public var clientId: String
public var clientSecret: String
public init(refreshToken: String, scope: String?, client: OAuthAuthorizationClient) {
self.refreshToken = refreshToken
self.scope = scope
self.clientId = client.id
self.clientSecret = client.secret
}
}
/// Conformed to by API callers to provide a consistent interface for `AccountDelegate` types to refresh OAuth Access Tokens. Conformers provide an associated type that models any custom parameters/properties, as well as the standard ones, in the response to a request for an access token.
/// https://tools.ietf.org/html/rfc6749#section-6
public protocol OAuthAcessTokenRefreshRequesting {
associatedtype AccessTokenResponse: OAuthAccessTokenResponse
/// Access tokens expire. Perform a request for a fresh access token given the long life refresh token received when authorization was granted.
/// - Parameter refreshRequest: The refresh token and other information the authorization server requires to grant the client fresh access tokens on the user's behalf.
/// - Parameter completionHandler: On success, the access token response appropriate for concrete type's service. Both the access and refresh token should be stored, preferrably on the Keychain. On failure, possibly a `URLError` or `OAuthAuthorizationErrorResponse` value.
func refreshAccessToken(_ refreshRequest: OAuthRefreshAccessTokenRequest, completionHandler: @escaping (Result<AccessTokenResponse, Error>) -> ())
}
/// Implemented by concrete types to perform the actual request.
protocol OAuthAccessTokenRefreshing: class {
func refreshAccessToken(with refreshToken: String, client: OAuthAuthorizationClient, completionHandler: @escaping (Result<OAuthAuthorizationGrant, Error>) -> ())
}