/// <summary>
/// This method mainly tries to generate access token, creates user record, creates uninstall web hook and finally
/// sends to the page where user can choose plan.
/// </summary>
/// <param name="shop">The store (URL) that is trying to access app.</param>
/// <param name="code">Authrization code generated and send from shopify that will be used to gnerate access code</param>
/// <returns></returns>
public virtual async Task <IActionResult> AuthResult(string shop, string code)
{
using (Logger.BeginScope(new { Shop = shop, Code = code }))
{
try
{
Logger.LogInformation("Checking request authenticity.");
if (ShopifyAPI.IsAuthenticRequest(Request))
{
Logger.LogInformation("Request is authentic.");
Logger.LogInformation("Checking if shop is authorized.");
if (UserDbServiceHelper.ShopIsAuthorized(UserDbService, shop))
{
Logger.LogInformation("Shop is authrorized.Calling _ProceedWithShopExists.");
return(await _ProceedWithShopExists(shop));
}
else
{
string accessToken = "";
try
{
Logger.LogWarning("Shop is NOT authrorized.Requesting authentication (access) token via api.");
accessToken = await ShopifyAPI.Authorize(shop, code);
}
catch (Exception ex)
{
Logger.LogCritical("Shopify did not authorize.No access code received.Throwing exception.");
throw new Exception("Shopify did not authorize.No access code received.", ex);
}
Logger.LogInformation($"Rceived access token '{accessToken}'");
Thread.Sleep(500);
/*Get shop object cause we need the shop email address*/
ShopifyShopObject shopObj = null;
try
{
Logger.LogInformation("Request shopify shop obj using access token.");
shopObj = await ShopifyAPI.GetShopAsync(shop, accessToken);
}
catch (Exception ex)
{
Logger.LogCritical("Could not retrive shop info obj.");
throw new Exception("Could not retrive shop info obj.", ex);
}
Logger.LogInformation($"Received shop info obj. Shop '{shopObj.Domain}' and email '{shopObj.Email}'");
#region User Creation
//Generate password
Logger.LogInformation("Generating password using shop info obj.");
string password = PassGenerator.GetPassword(new PasswordGeneratorInfo(shopObj.MyShopifyDomain, shopObj.Email));
Logger.LogInformation($"Successfully generated a password '{password}'.");
/*Now create an account */
Logger.LogInformation("Creating user account using shop info and password.");
var userCreation = await UserManager.CreateAppUser(shopObj.MyShopifyDomain, shopObj.Email, accessToken, password);
#endregion
if (userCreation.Succeeded)
{
AppUser user = await UserDbServiceHelper.GetUserByShopDomain(UserDbService, shopObj.MyShopifyDomain);
Logger.LogInformation($"Successfully created user for the shop.User id '{user.Id}'");
#region Uninstall hook creation
//As soon as user is created , create the uninstall hook
string uninstallCallback = "";
try
{
Logger.LogInformation("Trying to find app/uninstalled topic in the web hook definition list in the appsettings.json file.");
List <WebHookDefinition> whDefList = AppSettings.BindObject <List <WebHookDefinition> >("WebHooks", Config);
if (whDefList.Count > 0)
{
var def = whDefList.Where(x => x.Topic.ToLower() == "app/uninstalled").FirstOrDefault();
if (def.Topic == string.Empty)
{
Logger.LogWarning("List of webhooks found in the appsettings file but no app/uninstalled topic found.");
uninstallCallback = ShopifyUrlHelper.GetAppUninstallWebHookUrl(Settings, user.Id);
Logger.LogInformation($"Using system default uninstall callback url {uninstallCallback}.");
}
else
{
Logger.LogInformation($"Found app/uninstalled topic call in the appsettings file.The callback url is {def.Callback}.");
uninstallCallback = ShopifyUrlHelper.GetAppUninstallWebHookUrl(def.Callback, user.Id);
}
}
else
{
Logger.LogInformation("No weebhooks are defined in the appsettings file.");
uninstallCallback = ShopifyUrlHelper.GetAppUninstallWebHookUrl(Settings, user.Id);
Logger.LogInformation($"Using system default uninstall callback url {uninstallCallback}.");
}
Logger.LogInformation($"Trying to create uninstall web hook with call back url {uninstallCallback}.");
var hook = await ShopifyAPI.CreateWebhookAsync(user.MyShopifyDomain, accessToken, new ShopifyWebhookObject()
{
Address = uninstallCallback,
Topic = "app/uninstalled"
});
Logger.LogInformation($"Successfully created uninstall web hook. Hook id '{hook.Id.Value}'.");
}
catch (Exception ex)
{
LogGenericError(ex);
Logger.LogCritical($"Failed creating uninstall webhook for user id '{user.Id}.The call back url is {uninstallCallback}'.");
Logger.LogInformation("Sending UninstallHookCreationFailedAsync email.");
var response = await Emailer.UninstallHookCreationFailedAsync(user, shopObj.MyShopifyDomain);
if (response)
{
Logger.LogInformation("Successfully sent UninstallHookCreationFailedAsync email.");
}
else
{
Logger.LogInformation("Could not send UninstallHookCreationFailedAsync email.");
}
//we dont thorw error here...just gracefully ignore it
}
#endregion
#region Sign in
//Now sign in
Logger.LogInformation($"Trying to sign in using username '{user.UserName}' and password '{password}'. User id '{user.Id}'");
var signInStatus = await SignInManager.PasswordSignInAsync(user.UserName, password, false, lockoutOnFailure : false);
if (signInStatus.Succeeded)
{
Logger.LogInformation($"Successfully signed in. User id '{user.Id}'");
UserCache.ClearLoggedOnUser();
return(RedirectToAction(SHOPIFY_ACTIONS.ChoosePlan.ToString(), Settings.GetShopifyControllerName()));
}
else
{
Logger.LogCritical($"Signing in for User id '{user.Id}' failed.");
throw new Exception("Could not sign you in using app account.Sign in failed!");
}
#endregion
}
else
{
var reasons = $"Reasons: { string.Join(", ", userCreation.Errors) }";
Logger.LogCritical($"User creation failed.{reasons}");
throw new Exception($"Could not create app user.{reasons}.");
}
}
}
else
{
Logger.LogCritical("Request is not authentic. Throwing error.");
throw new Exception("Request is not authentic.");
}
}
catch (Exception ex)
{
Logger.LogWarning("Error occurred while executing AuthResult().");
LogGenericError(ex);
throw ex;
}
}
}
