private async Task SendMailAsync(MailListSubscription reg, string fullTemplateName)
{
MailboxAddress fromAddress = new MailboxAddress(reg.MailList.FromEmailName, reg.MailList.FromEmailAddress);
MailboxAddress[] toAddresses = new MailboxAddress[] { MailboxAddress.Parse(reg.EmailAddress) };
MimeMessage message = await mailCreator.CreateMailAsync(fullTemplateName, reg, GetViewBagForTemplate(), null);
await mailSender.SendMailAsync(GetMessages(reg, message, fromAddress, toAddresses), false);
}
private IEnumerable <MailToSend> GetMessages(MailListSubscription sub, MimeMessage message, MailboxAddress fromAddress, IEnumerable <MailboxAddress> toAddresses)
{
foreach (MailboxAddress toAddress in toAddresses)
{
message.From.Clear();
message.To.Clear();
message.From.Add(fromAddress);
message.To.Add(toAddress);
yield return(new MailToSend {
Subscription = sub, Message = message
});
}
}
/// <summary>
/// Unsubscribe from a mailing list
/// </summary>
/// <param name="db">DB</param>
/// <param name="listName">List name</param>
/// <param name="token">Unsubscribe token</param>
/// <returns>True if unsubscribed, false if not</returns>
public static bool UnsubscribeFromMailingList(this MailDemonDatabase db, string listName, string token)
{
MailListSubscription foundReg = db.Subscriptions.FirstOrDefault(r => r.UnsubscribeToken == token && r.ListName == listName && r.UnsubscribedDate == default);
if (foundReg != null)
{
foundReg.UnsubscribedDate = DateTime.UtcNow;
foundReg.SubscribeToken = null;
db.SaveChanges();
return(true);
}
;
return(false);
}
public IActionResult Subscribers(string id, string action, long?subId)
{
if (action == "delete" && subId != null)
{
using MailDemonDatabase db = dbProvider.GetDatabase();
MailListSubscription sub = db.Subscriptions.FirstOrDefault(s => s.Id == subId);
if (sub != null)
{
db.Subscriptions.Remove(sub);
db.SaveChanges();
}
}
return(RedirectToAction(nameof(Subscribers), new { id }));
}
public async Task <IActionResult> DebugTemplate(string id)
{
if (HttpContext.Request.Method == "POST")
{
// switch to GET request, to avoid stupid double form post popup
return(RedirectToAction(nameof(DebugTemplate), new { id }));
}
id = (id ?? string.Empty).Trim();
if (id.Length == 0)
{
return(NotFound());
}
string listName = MailTemplate.GetListName(id);
MailList list;
using (MailDemonDatabase db = dbProvider.GetDatabase())
{
list = db.Lists.FirstOrDefault(l => l.Name == listName);
}
if (list == null)
{
return(NotFound());
}
string unsubscribeToken = Guid.NewGuid().ToString("N");
MailListSubscription tempReg = new MailListSubscription
{
EmailAddress = "*****@*****.**",
IPAddress = HttpContext.GetRemoteIPAddress().ToString(),
FirstName = "Bob",
LastName = "Smith",
Company = "Fake Company",
ListName = list.Name,
SubscribedDate = DateTime.UtcNow,
SubscribeToken = Guid.NewGuid().ToString("N"),
Expires = DateTime.MinValue,
MailList = list,
UnsubscribeToken = unsubscribeToken,
UnsubscribeUrl = $"{HttpContext.Request.Scheme}://{HttpContext.Request.Host}/{nameof(Unsubscribe)}/{list.Name}?token={unsubscribeToken}"
};
MimeMessage msg = await mailCreator.CreateMailAsync(id, tempReg, GetViewBagForTemplate(), (_html, subject) =>
{
return(_html.Replace("<body>", "<body><div style='padding: 10px; width: 100%; background-color: #2A2A2A; border-bottom: 1px solid #444444;'>SUBJECT: " + System.Web.HttpUtility.HtmlEncode(subject) + "</div>"));
});
string html = msg.HtmlBody;
return(Content(msg.HtmlBody, "text/html"));
}
private IReadOnlyCollection <MailToSend> GetMessages(MailListSubscription sub, MimeMessage message,
MailboxAddress fromAddress, IEnumerable <MailboxAddress> toAddresses)
{
List <MailToSend> messages = new List <MailToSend>();
foreach (MailboxAddress toAddress in toAddresses)
{
message.From.Clear();
message.To.Clear();
message.From.Add(fromAddress);
message.To.Add(toAddress);
messages.Add(new MailToSend {
Subscription = sub, Message = message
});
}
return(messages);
}
/// <summary>
/// Confirm subscribe to a mailing list
/// </summary>
/// <param name="db">DB</param>
/// <param name="listName">List name</param>
/// <param name="token">Subscribe token</param>
/// <returns>Registration or null if not found</returns>
public static MailListSubscription ConfirmSubscribeToMailingList(this MailDemonDatabase db, string listName, string token)
{
MailListSubscription reg = null;
MailListSubscription foundReg = db.Subscriptions.FirstOrDefault(r => r.SubscribeToken == token);
if (foundReg != null && foundReg.ListName == listName && foundReg.SubscribedDate == default && foundReg.SubscribeToken == token)
{
reg = foundReg;
foundReg.Expires = DateTime.MaxValue;
foundReg.SubscribedDate = DateTime.UtcNow;
foundReg.UnsubscribedDate = default;
foundReg.UnsubscribeToken = Guid.NewGuid().ToString("N");
foundReg.MailList = db.Lists.FirstOrDefault(l => l.Name == listName);
foundReg.Result = "New";
db.SaveChanges();
}
return(reg);
}
/// <summary>
/// Pre subscribe to a mailing list
/// </summary>
/// <param name="db">DB</param>
/// <param name="reg">Registration, receives new registration if success</param>
/// <returns>True if success, false if already subscribed</returns>
public static bool PreSubscribeToMailingList(this MailDemonDatabase db, ref MailListSubscription reg)
{
bool result = false;
string token = string.Empty;
MailListSubscription final = reg;
MailListSubscription dbReg = db.Subscriptions.FirstOrDefault(r => r.EmailAddress == final.EmailAddress && r.ListName == final.ListName);
if (dbReg != null)
{
dbReg.Fields.Clear();
foreach (var kv in final.Fields)
{
dbReg.SetField(kv.Key, kv.Value);
}
dbReg.Error = final.Error;
dbReg.Message = final.Message;
dbReg.IPAddress = final.IPAddress;
dbReg.MailList = final.MailList;
dbReg.TemplateName = final.TemplateName;
final = dbReg;
}
reg = final;
if (reg.SubscribeToken == null)
{
reg.SubscribeToken = Guid.NewGuid().ToString("N");
reg.Expires = DateTime.UtcNow.AddHours(1.0);
if (reg.Id == 0)
{
db.Subscriptions.Add(reg);
}
else
{
db.Update(reg);
}
result = true;
}
db.SaveChanges();
return(result);
}
public IActionResult SubscribeInitial(string id)
{
string result = TempData["result"] as string;
id = (id ?? string.Empty).Trim();
if (id.Length == 0)
{
return(NotFound());
}
MailListSubscription model = (string.IsNullOrWhiteSpace(result) ? new MailListSubscription() : JsonConvert.DeserializeObject <MailListSubscription>(result));
using (MailDemonDatabase db = dbProvider.GetDatabase())
{
model.MailList = db.Lists.FirstOrDefault(l => l.Name == id);
}
if (model.MailList == null)
{
return(NotFound());
}
model.ListName = id;
model.TemplateName = MailTemplate.GetFullTemplateName(id, MailTemplate.NameSubscribeInitial);
return(View(model));
}
public async Task <IActionResult> SubscribeInitialPost(string id, Dictionary <string, string> formFields)
{
id = (id ?? string.Empty).Trim();
if (id.Length == 0)
{
return(NotFound());
}
string error = null;
if (RequireCaptcha)
{
formFields.TryGetValue("captcha", out string captchaValue);
error = await MailDemonWebApp.Instance.Recaptcha.Verify(Request.GetDisplayUrl(), captchaValue, nameof(SubscribeInitial), HttpContext.GetRemoteIPAddress().ToString(), formFields);
}
MailListSubscription model = new MailListSubscription {
Message = error, Error = !string.IsNullOrWhiteSpace(error)
};
MailList list;
using (MailDemonDatabase db = dbProvider.GetDatabase())
{
list = db.Lists.FirstOrDefault(l => l.Name == id);
}
if (list == null)
{
return(NotFound());
}
model.MailList = list;
model.ListName = model.MailList.Name;
if (formFields.ContainsKey("TemplateName"))
{
model.TemplateName = formFields["TemplateName"];
}
string email = null;
foreach (KeyValuePair <string, string> field in formFields)
{
if (field.Key.StartsWith("ff_"))
{
string value = field.Value?.Trim();
string name = field.Key.Split('_')[1];
if (string.IsNullOrWhiteSpace(value))
{
if (field.Key.EndsWith("_optional", StringComparison.OrdinalIgnoreCase))
{
model.Fields[name] = string.Empty;
}
else
{
model.Message += "<br/>" + field.Key.Split('_')[1] + " is required";
model.Error = true;
}
}
else if (name.Contains("email", StringComparison.OrdinalIgnoreCase))
{
if (value.TryParseEmailAddress(out _))
{
email = (email ?? value);
model.EmailAddress = email;
}
else
{
model.Error = true;
}
}
else
{
model.Fields[name] = value;
}
}
}
model.EmailAddressDomain = model.GetDomainFromEmailAddress();
TempData["result"] = JsonConvert.SerializeObject(model);
if (model.Error || email == null)
{
if (email == null)
{
model.Error = true;
model.Message += "<br/>" + Resources.EmailIsInvalid;
}
return(View(nameof(SubscribeInitial), model));
}
else
{
try
{
model.IPAddress = HttpContext.GetRemoteIPAddress().ToString();
using (MailDemonDatabase db = dbProvider.GetDatabase())
{
if (!db.PreSubscribeToMailingList(ref model))
{
throw new InvalidOperationException(Resources.AlreadySubscribed.FormatHtml(id));
}
}
string url = $"{HttpContext.Request.Scheme}://{HttpContext.Request.Host}/{nameof(SubscribeWelcome)}/{id}?token={model.SubscribeToken}";
model.SubscribeUrl = url;
string templateFullName = MailTemplate.GetFullTemplateName(id, MailTemplate.NameSubscribeConfirm);
await SendMailAsync(model, templateFullName);
return(RedirectToAction(nameof(SubscribeConfirm), new { id = model.ListName }));
}
catch (Exception ex)
{
MailDemonLog.Error(ex);
model.Error = true;
model.Message += "<br/>" + ex.Message;
return(View(nameof(SubscribeInitial), model));
}
}
}
