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47 lines
2.2 KiB
Swift
47 lines
2.2 KiB
Swift
//
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// OAuthAcessTokenRefreshing.swift
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// Account
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//
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// Created by Kiel Gillard on 4/11/19.
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// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import RSWeb
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/// Models section 6 of the OAuth 2.0 Authorization Framework
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/// https://tools.ietf.org/html/rfc6749#section-6
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public struct OAuthRefreshAccessTokenRequest: Encodable {
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public let grantType = "refresh_token"
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public var refreshToken: String
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public var scope: String?
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// Possibly not part of the standard but specific to certain implementations (e.g.: Feedly).
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public var clientId: String
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public var clientSecret: String
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public init(refreshToken: String, scope: String?, client: OAuthAuthorizationClient) {
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self.refreshToken = refreshToken
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self.scope = scope
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self.clientId = client.id
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self.clientSecret = client.secret
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}
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}
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/// 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.
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/// https://tools.ietf.org/html/rfc6749#section-6
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public protocol OAuthAcessTokenRefreshRequesting {
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associatedtype AccessTokenResponse: OAuthAccessTokenResponse
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/// Access tokens expire. Perform a request for a fresh access token given the long life refresh token received when authorization was granted.
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/// - Parameter refreshRequest: The refresh token and other information the authorization server requires to grant the client fresh access tokens on the user's behalf.
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/// - Parameter completion: 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.
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func refreshAccessToken(_ refreshRequest: OAuthRefreshAccessTokenRequest, completion: @escaping (Result<AccessTokenResponse, Error>) -> ())
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}
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/// Implemented by concrete types to perform the actual request.
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protocol OAuthAccessTokenRefreshing: class {
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func refreshAccessToken(with refreshToken: String, client: OAuthAuthorizationClient, completion: @escaping (Result<OAuthAuthorizationGrant, Error>) -> ())
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}
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