public async Task<IHttpActionResult> LogInExternal(RegisterExternalBindingModel model)
{
if(!ModelState.IsValid)
{
return BadRequest( ModelState );
}
if(User.Identity.IsAuthenticated == true)
{
if(User.Identity.Name == model.Email)
{
return Ok("Already Authenticated");
}
else
{
return Unauthorized();
}
}
else
{
try
{
var user = await UserManager.FindAsync(new UserLoginInfo("microsoft", model.ExternalAccessToken));
if( user != null)
{
//Return Token (GUID of User)
return Ok(user.Id);
}
else
{
user = new MyUser
{
UserName = model.Id,
Email = model.Email,
FirstName = model.FirstName,
LastName = model.LastName
};
user.Logins.Add( new IdentityUserLogin
{
LoginProvider = "microsoft",
ProviderKey = model.ExternalAccessToken
} );
IdentityResult result = await UserManager.CreateAsync( user );
IHttpActionResult errorResult = GetErrorResult( result );
if ( errorResult != null )
{
return errorResult;
}
//Return Token (GUID of User)
return Ok( user.Id );
}
}
catch(Exception error)
{
return BadRequest(error.Message);
}
}
}
public async Task SignIn(RegisterExternalBindingModel model)
{
//Check Model State
if(!ModelState.IsValid)
{
//If Model State is not Valid, call error on Caller.
Clients.Caller.error("Invalid Model: " + ModelState);
}
else
{
//Else, attempt logging the user
try
{
//Find the User using the Log In Information
var user = await UserManager.FindAsync( new UserLoginInfo( "microsoft", model.ExternalAccessToken ) );
//If User and Login exists, return the Token.
if(user != null)
{
Clients.Caller.token(user.Id);
}
else
{
//Else, the User will be created.
user = new MyUser
{
//UserName just needs to be unique. We really want an email address.
UserName = model.Id,
Email = model.Email,
FirstName = model.FirstName,
LastName = model.LastName,
Profile = new Profile()
};
//The External Login is Added to the user
user.Logins.Add(new IdentityUserLogin
{
LoginProvider = "microsoft",
ProviderKey = model.ExternalAccessToken
});
//Save the new User to the Database.
IdentityResult result = await UserManager.CreateAsync( user );
//Check to see if User was successfully saved
if(result.Succeeded)
{
//If User was saved, return the Token.
Clients.Caller.token( user.Id );
}
else
{
//Else, something went wrong with registering user. Abort operation and call error method on Caller.
Clients.Caller.error("Registration Failed");
}
}
}
//For Entity Validation Exception Errors, output the validation errors.
catch ( DbEntityValidationException error )
{
string output = "Exception Occurred: " + error.Message + ":";
//Return all error messages to error method on Caller.
foreach ( var validationErrors in error.EntityValidationErrors )
{
foreach ( var validationError in validationErrors.ValidationErrors )
{
output += "Property: " + validationError.PropertyName + ", Error: " + validationError.ErrorMessage + " ------";
}
}
Clients.Caller.error( output );
}
//Catch all other Exceptions to avoid silent failure
catch ( Exception error )
{
string output = "Exception Occurred: " + error.Message + " : ";
while(error.InnerException != null)
{
output += "Inner Exception: " + error.InnerException.Message;
error = error.InnerException;
}
//Return all error messages to error method on Caller.
Clients.Caller.error( output );
}
}
}
