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Expose refresh token expiration date. #577

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f5aa90b
Expose refresh token expiration date
brnnmrls Feb 4, 2026
864ae2d
Add a stub for use of `additionalParameters`.
brnnmrls Feb 4, 2026
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21 changes: 20 additions & 1 deletion GoogleSignIn/Sources/GIDGoogleUser.m
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,16 @@ - (void)refreshTokensIfNeededWithCompletion:(GIDGoogleUserCompletion)completion
});
return;
}
if (self.refreshToken.expirationDate && [self.refreshToken.expirationDate timeIntervalSinceNow] <= 0) {
NSError *error = [NSError errorWithDomain:kGIDSignInErrorDomain
code:kGIDSignInErrorCodeRefreshTokenExpired
userInfo:nil];
dispatch_async(dispatch_get_main_queue(), ^{
completion(nil, error);
});
return;
}

@synchronized (_tokenRefreshHandlerQueue) {
// Push the handler into the callback queue.
[_tokenRefreshHandlerQueue addObject:[completion copy]];
Expand Down Expand Up @@ -275,8 +285,17 @@ - (void)updateTokensWithAuthState:(OIDAuthState *)authState {
self.accessToken = accessToken;
}

NSDictionary *additionalParameters = authState.lastTokenResponse.additionalParameters;
NSNumber *refreshTokenExpiresIn = nil;
NSDate *refreshTokenExpirationDate = nil;
id expiresInValue = additionalParameters[@"refresh_token_expires_in"];
if ([expiresInValue isKindOfClass:[NSNumber class]]) {
refreshTokenExpiresIn = (NSNumber *)expiresInValue;
NSTimeInterval interval = [refreshTokenExpiresIn doubleValue];
refreshTokenExpirationDate = [NSDate dateWithTimeIntervalSinceNow:interval];
}
GIDToken *refreshToken = [[GIDToken alloc] initWithTokenString:authState.refreshToken
expirationDate:nil];
expirationDate:refreshTokenExpirationDate];
if (![self.refreshToken isEqualToToken:refreshToken]) {
self.refreshToken = refreshToken;
}
Expand Down
4 changes: 3 additions & 1 deletion GoogleSignIn/Sources/Public/GoogleSignIn/GIDSignIn.h
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,9 @@ typedef NS_ERROR_ENUM(kGIDSignInErrorDomain, GIDSignInErrorCode) {
/// Indicates there is an operation on a previous user.
kGIDSignInErrorCodeMismatchWithCurrentUser = -9,
/// Indicates that an object could not be serialized into a `JSON` string.
kGIDSignInErrorCodeJSONSerializationFailure = -10
kGIDSignInErrorCodeJSONSerializationFailure = -10,
/// Indicates that the refresh token has expired and the user must be re-authorized.
kGIDSignInErrorCodeRefreshTokenExpired = -11,
};

/// This class is used to sign in users with their Google account and manage their session.
Expand Down
33 changes: 33 additions & 0 deletions GoogleSignIn/Tests/Unit/GIDGoogleUserTest.m
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Original file line number Diff line number Diff line change
Expand Up @@ -459,6 +459,25 @@ - (void)testRefreshTokensIfNeededWithCompletion_handleConcurrentRefresh {
[self waitForExpectationsWithTimeout:1 handler:nil];
}

- (void)testRefreshTokensIfNeededWithCompletion_noRefresh_givenRefreshTokenExpired {
NSTimeInterval expiresIn = -10;
GIDGoogleUser *user = [self googleUserWithAccessTokenExpiresIn:expiresIn
idTokenExpiresIn:expiresIn
refreshTokenExpiresIn:expiresIn];

XCTestExpectation *expectation = [self expectationWithDescription:@"Callback is called"];

[user refreshTokensIfNeededWithCompletion:^(GIDGoogleUser * _Nullable user,
NSError * _Nullable error) {
[expectation fulfill];
XCTAssertNil(user);
XCTAssertEqualObjects(error.domain, kGIDSignInErrorDomain);
XCTAssertEqual(error.code, kGIDSignInErrorCodeRefreshTokenExpired);
}];

[self waitForExpectationsWithTimeout:1 handler:nil];
}

# pragma mark - Test `addScopes:`

- (void)testAddScopes_success {
Expand Down Expand Up @@ -560,6 +579,20 @@ - (GIDGoogleUser *)googleUserWithAccessTokenExpiresIn:(NSTimeInterval)accessToke
return [[GIDGoogleUser alloc] initWithAuthState:authState profileData:nil];
}

- (GIDGoogleUser *)googleUserWithAccessTokenExpiresIn:(NSTimeInterval)accessTokenExpiresIn
idTokenExpiresIn:(NSTimeInterval)idTokenExpiresIn
refreshTokenExpiresIn:(NSTimeInterval)refreshTokenExpiresIn {
NSString *idToken = [self idTokenWithExpiresIn:idTokenExpiresIn];

OIDAuthState *authState = [OIDAuthState testInstanceWithIDToken:idToken
accessToken:kAccessToken
accessTokenExpiresIn:accessTokenExpiresIn
refreshToken:kRefreshToken
refreshTokenExpiresIn:refreshTokenExpiresIn];

return [[GIDGoogleUser alloc] initWithAuthState:authState profileData:nil];
}

- (NSString *)idTokenWithExpiresIn:(NSTimeInterval)expiresIn {
// The expireTime should be based on 1970.
NSTimeInterval expireTime = [[NSDate date] timeIntervalSince1970] + expiresIn;
Expand Down
1 change: 1 addition & 0 deletions GoogleSignIn/Tests/Unit/GIDSignInTest.m
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Expand Up @@ -310,6 +310,7 @@ - (void)setUp {
OCMStub([_authState alloc]).andReturn(_authState);
OCMStub([_authState initWithAuthorizationResponse:OCMOCK_ANY]).andReturn(_authState);
_tokenResponse = OCMStrictClassMock([OIDTokenResponse class]);
OCMStub([_tokenResponse additionalParameters]).andReturn(@{});
_tokenRequest = OCMStrictClassMock([OIDTokenRequest class]);
_authorization = OCMStrictClassMock([GTMAuthSession class]);
_keychainStore = OCMStrictClassMock([GTMKeychainStore class]);
Expand Down
15 changes: 14 additions & 1 deletion GoogleSignIn/Tests/Unit/OIDAuthState+Testing.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,12 +31,25 @@
/**
* @idToken The ID token.
* @accessToken The access token string.
* @accessTokenExipresIn The life time of the access token starting from the moment when `OIDTokenResponse` is created.
* @accessTokenExpiresIn The life time of the access token starting from the moment when `OIDTokenResponse` is created.
* @refreshToken The refresh token string.
*/
+ (instancetype)testInstanceWithIDToken:(NSString *)idToken
accessToken:(NSString *)accessToken
accessTokenExpiresIn:(NSTimeInterval)accessTokenExpiresIn
refreshToken:(NSString *)refreshToken;

/**
* @idToken The ID token.
* @accessToken The access token string.
* @accessTokenExpiresIn The life time of the access token starting from the moment when `OIDTokenResponse` is created.
* @refreshToken The refresh token string.
* @refreshTokenExpiresIn The life time of the refresh token starting from the moment when `OIDTokenResponse` is created.
*/
+ (instancetype)testInstanceWithIDToken:(NSString *)idToken
accessToken:(NSString *)accessToken
accessTokenExpiresIn:(NSTimeInterval)accessTokenExpiresIn
refreshToken:(NSString *)refreshToken
refreshTokenExpiresIn:(NSTimeInterval)refreshTokenExpiresIn;

@end
16 changes: 16 additions & 0 deletions GoogleSignIn/Tests/Unit/OIDAuthState+Testing.m
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Expand Up @@ -46,5 +46,21 @@ + (instancetype)testInstanceWithIDToken:(NSString *)idToken
return [self testInstanceWithTokenResponse:newResponse];
}

+ (instancetype)testInstanceWithIDToken:(NSString *)idToken
accessToken:(NSString *)accessToken
accessTokenExpiresIn:(NSTimeInterval)accessTokenExpiresIn
refreshToken:(NSString *)refreshToken
refreshTokenExpiresIn:(NSTimeInterval)refreshTokenExpiresIn {
OIDTokenResponse *newResponse =
[OIDTokenResponse testInstanceWithIDToken:idToken
accessToken:accessToken
expiresIn:@(accessTokenExpiresIn)
refreshToken:refreshToken
refreshExpiresIn:@(refreshTokenExpiresIn)
authTime:nil
tokenRequest:nil];
return [self testInstanceWithTokenResponse:newResponse];
}


@end
8 changes: 8 additions & 0 deletions GoogleSignIn/Tests/Unit/OIDTokenResponse+Testing.h
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Expand Up @@ -67,6 +67,14 @@ extern NSString * const kFatPictureURL;
authTime:(NSString *)authTime
tokenRequest:(OIDTokenRequest *)tokenRequest;

+ (instancetype)testInstanceWithIDToken:(NSString *)idToken
accessToken:(NSString *)accessToken
expiresIn:(NSNumber *)expiresIn
refreshToken:(NSString *)refreshToken
refreshExpiresIn:(NSNumber *)refreshExpiresIn
authTime:(NSString *)authTime
tokenRequest:(OIDTokenRequest *)tokenRequest;

+ (NSString *)idToken;

+ (NSString *)fatIDToken;
Expand Down
21 changes: 20 additions & 1 deletion GoogleSignIn/Tests/Unit/OIDTokenResponse+Testing.m
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Expand Up @@ -85,8 +85,24 @@ + (instancetype)testInstanceWithIDToken:(NSString *)idToken
refreshToken:(NSString *)refreshToken
authTime:(NSString *)authTime
tokenRequest:(OIDTokenRequest *)tokenRequest {

return [OIDTokenResponse testInstanceWithIDToken:idToken
accessToken:accessToken
expiresIn:expiresIn
refreshToken:refreshToken
refreshExpiresIn:nil
authTime:authTime
tokenRequest:tokenRequest];
}

NSMutableDictionary<NSString *, NSString *> *parameters = [[NSMutableDictionary alloc] initWithDictionary:@{
+ (instancetype)testInstanceWithIDToken:(NSString *)idToken
accessToken:(NSString *)accessToken
expiresIn:(NSNumber *)expiresIn
refreshToken:(NSString *)refreshToken
refreshExpiresIn:(NSNumber *)refreshExpiresIn
authTime:(NSString *)authTime
tokenRequest:(OIDTokenRequest *)tokenRequest {
NSMutableDictionary<NSString *, NSObject<NSCopying> *> *parameters = [[NSMutableDictionary alloc] initWithDictionary:@{
@"access_token" : accessToken ?: kAccessToken,
@"expires_in" : expiresIn ?: @(kAccessTokenExpiresIn),
@"token_type" : @"example_token_type",
Expand All @@ -97,6 +113,9 @@ + (instancetype)testInstanceWithIDToken:(NSString *)idToken
if (idToken) {
parameters[@"id_token"] = idToken;
}
if (refreshExpiresIn) {
parameters[@"refresh_token_expires_in"] = refreshExpiresIn;
}
return [[OIDTokenResponse alloc] initWithRequest:tokenRequest ?: [OIDTokenRequest testInstance]
parameters:parameters];
}
Expand Down
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