public ActionResult Unsubscribe(UnsubscriptionModel model)
{
string invalidUrlMessage = ResHelper.GetString("DancingGoatMvc.News.InvalidUnsubscriptionLink");
if (ModelState.IsValid)
{
bool emailIsValid = emailHashValidator.ValidateEmailHash(model.Hash, model.Email);
if (emailIsValid)
{
try
{
var issue = issueInfoProvider.Get(model.IssueGuid, SiteContext.CurrentSiteID);
if (model.UnsubscribeFromAll)
{
// Unsubscribes if not already unsubscribed
if (!unsubscriptionProvider.IsUnsubscribedFromAllNewsletters(model.Email))
{
subscriptionService.UnsubscribeFromAllNewsletters(model.Email, issue?.IssueID);
}
model.UnsubscriptionResult = ResHelper.GetString("DancingGoatMvc.News.UnsubscribedAll");
}
else
{
var newsletter = newsletterInfoProvider.Get(model.NewsletterGuid, SiteContext.CurrentSiteID);
if (newsletter != null)
{
// Unsubscribes if not already unsubscribed
if (!unsubscriptionProvider.IsUnsubscribedFromSingleNewsletter(model.Email, newsletter.NewsletterID))
{
subscriptionService.UnsubscribeFromSingleNewsletter(model.Email, newsletter.NewsletterID, issue?.IssueID);
}
model.UnsubscriptionResult = ResHelper.GetString("DancingGoatMvc.News.Unsubscribed");
}
else
{
ModelState.AddModelError(String.Empty, invalidUrlMessage);
}
}
}
catch (ArgumentException)
{
ModelState.AddModelError(String.Empty, invalidUrlMessage);
}
}
else
{
ModelState.AddModelError(String.Empty, invalidUrlMessage);
}
}
else
{
ModelState.AddModelError(String.Empty, invalidUrlMessage);
}
return(View(model));
}
// GET: Subscription/Unsubscribe
public ActionResult Unsubscribe(UnsubscriptionModel model)
{
var invalidUrlMessage = "You weren't unsubscribed because your unsubscription link is not valid.";
if (ModelState.IsValid)
{
bool emailIsValid = emailHashValidator.ValidateEmailHash(model.Hash, model.Email);
if (emailIsValid)
{
try
{
var issue = issueInfoProvider.Get(model.IssueGuid, SiteContext.CurrentSiteID);
if (model.UnsubscribeFromAll)
{
// Unsubscribes if not already unsubscribed
if (!unsubscriptionProvider.IsUnsubscribedFromAllNewsletters(model.Email))
{
subscriptionService.UnsubscribeFromAllNewsletters(model.Email, issue?.IssueID);
}
model.UnsubscriptionResult = localizer["You've been unsubscribed from all email marketing campaigns."].Value;
}
else
{
var newsletter = newsletterInfoProvider.Get(model.NewsletterGuid, SiteContext.CurrentSiteID);
if (newsletter != null)
{
// Unsubscribes if not already unsubscribed
if (!unsubscriptionProvider.IsUnsubscribedFromSingleNewsletter(model.Email, newsletter.NewsletterID))
{
subscriptionService.UnsubscribeFromSingleNewsletter(model.Email, newsletter.NewsletterID, issue?.IssueID);
}
model.UnsubscriptionResult = localizer["We would like to offer you a coffee to go, but we can't, because we have just removed your email from the list."].Value;
}
else
{
AddError(invalidUrlMessage);
}
}
}
catch (ArgumentException)
{
AddError(invalidUrlMessage);
}
}
else
{
AddError(invalidUrlMessage);
}
}
else
{
AddError(invalidUrlMessage);
}
return(View(model));
}
//EndDocSection:Subscribe
//DocSection:Unsubscribe
/// <summary>
/// Handles marketing email subscription cancellation requests.
/// </summary>
public IActionResult Unsubscribe(NewsletterUnsubscriptionViewModel model)
{
// Verifies that the subscription cancellation request contains all required parameters
if (ModelState.IsValid)
{
// Confirms whether the hash in the subscription cancellation request is valid for the given email address
// Provides protection against forged cancellation requests
if (emailHashValidator.ValidateEmailHash(model.Hash, model.Email))
{
// Gets the marketing email (issue) from which the cancellation request was sent
IssueInfo issue = issueInfoProvider.Get(model.IssueGuid, siteService.CurrentSite.SiteID);
if (model.UnsubscribeFromAll)
{
// Checks that the email address is not already unsubscribed from all marketing emails
if (!unsubscriptionProvider.IsUnsubscribedFromAllNewsletters(model.Email))
{
// Unsubscribes the specified email address from all marketing emails (adds it to the opt-out list)
subscriptionService.UnsubscribeFromAllNewsletters(model.Email, issue?.IssueID);
}
}
else
{
// Gets the email feed for which the cancellation was requested
NewsletterInfo newsletter = newsletterInfoProvider.Get(model.NewsletterGuid, siteService.CurrentSite.SiteID);
if (newsletter != null)
{
// Checks that the email address is not already unsubscribed from the specified email feed
if (!unsubscriptionProvider.IsUnsubscribedFromSingleNewsletter(model.Email, newsletter.NewsletterID))
{
// Unsubscribes the specified email address from the email feed
subscriptionService.UnsubscribeFromSingleNewsletter(model.Email, newsletter.NewsletterID, issue?.IssueID);
}
}
}
// Displays a view to inform the user that they were unsubscribed
return(RedirectToAction(nameof(UnsubscribeSuccess)));
}
}
// If the subscription cancellation request was not successful, displays a view to inform the user
// Failure can occur if the request does not provide all required parameters or if the hash is invalid
return(RedirectToAction(nameof(UnsubscribeFailure)));
}
