public async Task <ActionResult> LandingExternal(MsalOauthResponse response)
{
if (string.IsNullOrWhiteSpace(response.Code))
{
return(Json(response, "application/json", JsonRequestBehavior.AllowGet));
}
var state = OAuth2Helper.ParseState(response.State);
if (state.ClientId == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.ExpectationFailed,
"Invalid session data returned after login from M365"));
}
var tenant = await _mediator.Send(new QueryTenantByClientId(state.ClientId));
if (tenant.TenantId != state.Tenant)
{
return(new HttpStatusCodeResult(HttpStatusCode.ExpectationFailed,
"Invalid tenant returned after login from M365"));
}
var tokenResponse = await OAuth2Helper.AcquireTokenAsync(new AcquireTokenRequest
{
Tenant = tenant.TenantId,
ClientId = tenant.ClientId,
Secret = tenant.Secret,
ResponseCode = response.Code,
CodeVerifier = state.CodeVerifier,
RedirectUri = $"{Request.GetBaseUrl()}{Url.Action("LandingExternal")}"
});
await _mediator.Send(new SaveEmailAccountTokenCommand
{
Email = state.Email,
AccessToken = tokenResponse.AccessToken,
RefreshToken = tokenResponse.RefreshToken
});
return(View(tokenResponse));
}