I am working on an iOS App that uses Parse and Facebook.
For the Facebook login, I am following the guides on this page: https://www.parse.com/tutorials/integrating-facebook-in-ios
Following the guide, I have this code that validate the cached session:
// check if this cached session is still valid?
// does nothing if still valid
- (void) validateCachedSession
{
FBRequest *request = [FBRequest requestForMe];
[request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error)
{
// handle successful response
LogObvious(@"Facebook session validated. No problem");
}
else if ([error.userInfo[FBErrorParsedJSONResponseKey][@"body"][@"error"][@"type"] isEqualToString:@"OAuthException"])
{ // Since the request failed, we can check if it was due to an invalid session
LogObvious(@"The facebook session was invalidated. Announce logged Out");
// The persisted session is invalid. Logout!
[self logout];
}
else
{
LogObvious(@"The facebook session was invalidated. Announce logged Out");
// The persisted session is invalid. Logout!
[self logout];
}
}];
}
As shown above, if the cached session is invalid, it should call logout:
- (void) logout
{
[PFUser logOut];
// Over here we will show the login button again.
}
In order to test this. I first logged into my app using a Facebook account. Then, I changed the password and revisit the app.
The app correctly recognises the session is invalidated and logout is called.
But when I click login again, the login function is returning this error:
Uh oh. An error occurred: Error Domain=com.facebook.sdk Code=5 "The operation couldn’t be completed. (com.facebook.sdk error 5.)" UserInfo=0x1e066140 {com.facebook.sdk:ErrorInnerErrorKey=Error Domain=com.apple.accounts Code=1 "Server refused renewal request with error code: 190" UserInfo=0x1d56df10 {NSLocalizedDescription=Server refused renewal request with error code: 190}, com.facebook.sdk:ParsedJSONResponseKey={
body = {
error = {
code = 190;
"error_subcode" = 65001;
};
};
}}
WHY? Even if I terminate the app and restart it. The app will now stuck in this state - unable to login. Any help will be appreciated.
p/s: To be clear, this is my login function:
// to be called when user explicitly clicked a login button
- (void) loginByFacebookWithPermissions:(NSArray*)permissionsArray
{
LogFunctionCalledObvious();
[PFFacebookUtils logInWithPermissions:permissionsArray block:^(PFUser *user, NSError *error)
{
if (!user)
{
if (!error)
{
NSLog(@"Uh oh. The user cancelled the Facebook login.");
} else
{
NSLog(@"Uh oh. An error occurred: %@", error);
[self logout];
}
} else if (user.isNew)
{
LogObvious(@"User with facebook signed up and logged in!");
[self requestLoggedInUserInfo];
} else
{
LogObvious(@"User with facebook logged in!");
[self requestLoggedInUserInfo];
}
}];
}
p/s2: OK, upon more investigation, so it stuck in this state until I go to the Settings->Facebook to reenter the new password. Is this the correct behaviour? shouldn't iOS6 promptly remind the user to change password when I changed the Facebook password from Facebook.com?
Your error sub code points to this
static const int FBSDKSystemPasswordErrorSubcode = 65001;
case FBSDKSystemPasswordErrorSubcode:
case FBAuthSubcodePasswordChanged:
if (subcode == FBSDKSystemPasswordErrorSubcode
|| [FBErrorUtility fberrorIsErrorFromSystemSession:error]) {
userMessageKey = @"FBE:PasswordChangedDevice";
userMessageDefault = @"Your Facebook password has changed. To confirm your password, open Settings > Facebook and tap your name.";
shouldNotifyUser = YES;
} else {
userMessageKey = @"FBE:PasswordChanged";
userMessageDefault = @"Your Facebook password has changed. Please log into this app again to reconnect your Facebook account.";
}
break;
You will have to message the user somehow to do this
Your Facebook password has changed. To confirm your password, open Settings > Facebook and tap your name.
or
Your Facebook password has changed. Please log into this app again to reconnect your Facebook account.