Files
letro-ios/UnitTests/Sources/RestorationTokenTests.swift

198 lines
11 KiB
Swift

//
// Copyright 2025 Element Creations Ltd.
// Copyright 2024-2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//
@testable import ElementX
import Foundation
import MatrixRustSDK
import Testing
struct RestorationTokenTests {
@Test
func decodeTokenWithSlidingSyncProxy() throws {
// Given an encoded restoration token that contains a session with a sliding sync proxy.
let originalToken = RestorationTokenV4(session: SessionV1(accessToken: "1234",
refreshToken: "5678",
userId: "@user:example.com",
deviceId: "D3V1C3",
homeserverUrl: "https://matrix.example.com",
oidcData: "data-from-mas",
slidingSyncVersion: .proxy(url: "https://sync.example.com")),
sessionDirectory: .sessionsBaseDirectory.appending(component: UUID().uuidString),
passphrase: "passphrase",
pusherNotificationClientIdentifier: "pusher-identifier")
let data = try JSONEncoder().encode(originalToken)
// When decoding the data to the current restoration token format.
// Then an error should be thrown as it is no longer supported.
#expect(throws: RestorationTokenError.slidingSyncProxyNotSupported) {
try JSONDecoder().decode(RestorationToken.self, from: data)
}
}
@Test
func decodeFromTokenV4() throws {
// Given an encoded restoration token in the 4th format that contains a stored session directory.
let sessionDirectoryName = UUID().uuidString
let originalToken = RestorationTokenV4(session: SessionV1(accessToken: "1234",
refreshToken: "5678",
userId: "@user:example.com",
deviceId: "D3V1C3",
homeserverUrl: "https://matrix.example.com",
oidcData: "data-from-mas",
slidingSyncVersion: .native),
sessionDirectory: .sessionsBaseDirectory.appending(component: sessionDirectoryName),
passphrase: "passphrase",
pusherNotificationClientIdentifier: "pusher-identifier")
let data = try JSONEncoder().encode(originalToken)
// When decoding the data to the current restoration token format.
let decodedToken = try JSONDecoder().decode(RestorationToken.self, from: data)
// Then the output should be a valid token with the expected store directories.
assertEqual(session: decodedToken.session, originalSession: originalToken.session)
#expect(decodedToken.passphrase == originalToken.passphrase, "The passphrase should not be changed.")
#expect(decodedToken.pusherNotificationClientIdentifier == originalToken.pusherNotificationClientIdentifier,
"The push notification client identifier should not be changed.")
#expect(decodedToken.sessionDirectories.dataDirectory == originalToken.sessionDirectory,
"The session directory should not be changed.")
#expect(decodedToken.sessionDirectories.cacheDirectory == .sessionCachesBaseDirectory.appending(component: sessionDirectoryName),
"The cache directory should be derived from the session directory but in the caches directory.")
}
@Test
func decodeFromTokenV5() throws {
// Given an encoded restoration token in the 5th format that contains separate directories for session data and caches.
let sessionDirectoryName = UUID().uuidString
let originalToken = RestorationTokenV5(session: SessionV1(accessToken: "1234",
refreshToken: "5678",
userId: "@user:example.com",
deviceId: "D3V1C3",
homeserverUrl: "https://matrix.example.com",
oidcData: "data-from-mas",
slidingSyncVersion: .native),
sessionDirectory: .sessionsBaseDirectory.appending(component: sessionDirectoryName),
cacheDirectory: .sessionCachesBaseDirectory.appending(component: sessionDirectoryName),
passphrase: "passphrase",
pusherNotificationClientIdentifier: "pusher-identifier")
let data = try JSONEncoder().encode(originalToken)
// When decoding the data.
let decodedToken = try JSONDecoder().decode(RestorationToken.self, from: data)
// Then the output should be a valid token.
assertEqual(session: decodedToken.session, originalSession: originalToken.session)
#expect(decodedToken.passphrase == originalToken.passphrase, "The passphrase should not be changed.")
#expect(decodedToken.pusherNotificationClientIdentifier == originalToken.pusherNotificationClientIdentifier,
"The push notification client identifier should not be changed.")
#expect(decodedToken.sessionDirectories.dataDirectory == originalToken.sessionDirectory,
"The session directory should not be changed.")
#expect(decodedToken.sessionDirectories.cacheDirectory == originalToken.cacheDirectory,
"The cache directory should not be changed.")
}
@Test
func decodeFromCurrentToken() throws {
// Given an encoded restoration token in the current format.
let originalToken = RestorationToken(session: Session(accessToken: "1234",
refreshToken: "5678",
userId: "@user:example.com",
deviceId: "D3V1C3",
homeserverUrl: "https://matrix.example.com",
oidcData: "data-from-mas",
slidingSyncVersion: .native),
sessionDirectories: .init(),
passphrase: "passphrase",
pusherNotificationClientIdentifier: "pusher-identifier")
let data = try JSONEncoder().encode(originalToken)
// When decoding the data.
let decodedToken = try JSONDecoder().decode(RestorationToken.self, from: data)
// Then the output should be a valid token.
#expect(decodedToken == originalToken, "The token should remain identical.")
}
func assertEqual(session: Session, originalSession: SessionV1) {
#expect(session.accessToken == originalSession.accessToken, "The access token should not be changed.")
#expect(session.refreshToken == originalSession.refreshToken, "The refresh token should not be changed.")
#expect(session.userId == originalSession.userId, "The user ID should not be changed.")
#expect(session.deviceId == originalSession.deviceId, "The device ID should not be changed.")
#expect(session.homeserverUrl == originalSession.homeserverUrl, "The homeserver URL should not be changed.")
#expect(session.oidcData == originalSession.oidcData, "The OIDC data should not be changed.")
}
}
// MARK: - Token formats
struct RestorationTokenV4: Equatable, Codable {
let session: SessionV1
let sessionDirectory: URL
let passphrase: String? // Optional but has always been encoded for sessions that use native sliding sync.
let pusherNotificationClientIdentifier: String?
}
struct RestorationTokenV5: Equatable, Codable {
let session: SessionV1
let sessionDirectory: URL
let cacheDirectory: URL
let passphrase: String? // Optional but has always been encoded for sessions that use native sliding sync.
let pusherNotificationClientIdentifier: String?
}
// MARK: - Session formats
struct SessionV1: Equatable {
var accessToken: String
var refreshToken: String?
var userId: String
var deviceId: String
var homeserverUrl: String
var oidcData: String?
var slidingSyncVersion: SlidingSyncVersionV1
}
enum SlidingSyncVersionV1: Equatable {
case none
case proxy(url: String)
case native
var proxyURL: String? {
guard case let .proxy(url) = self else { return nil }
return url
}
}
extension SessionV1: Codable {
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
let slidingSyncProxy = try container.decodeIfPresent(String.self, forKey: .slidingSyncProxy)
self = try .init(accessToken: container.decode(String.self, forKey: .accessToken),
refreshToken: container.decodeIfPresent(String.self, forKey: .refreshToken),
userId: container.decode(String.self, forKey: .userId),
deviceId: container.decode(String.self, forKey: .deviceId),
homeserverUrl: container.decode(String.self, forKey: .homeserverUrl),
oidcData: container.decodeIfPresent(String.self, forKey: .oidcData),
slidingSyncVersion: slidingSyncProxy.map { .proxy(url: $0) } ?? .native)
}
func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(accessToken, forKey: .accessToken)
try container.encode(refreshToken, forKey: .refreshToken)
try container.encode(userId, forKey: .userId)
try container.encode(deviceId, forKey: .deviceId)
try container.encode(homeserverUrl, forKey: .homeserverUrl)
try container.encode(oidcData, forKey: .oidcData)
try container.encode(slidingSyncVersion.proxyURL, forKey: .slidingSyncProxy)
}
enum CodingKeys: String, CodingKey {
case accessToken, refreshToken, userId, deviceId, homeserverUrl, oidcData, slidingSyncProxy
}
}