public override async Task <string> SendTemplate(EmailConstants.EmailTypes emailType, Dictionary <string, string> emailAttributes)
{
var emailTemplateId = EmailTypeToSendgridId(emailType);
var from = new EmailAddress(emailAttributes["FromEmail"], emailAttributes["FromUserName"]);
var to = new EmailAddress(emailAttributes["ToEmail"], emailAttributes["ToUserName"]);
var msg = MailHelper.CreateSingleTemplateEmail(from, to, emailTemplateId, emailAttributes);
return(await SendViaSendGrid(msg));
}
public override async Task <string> SendTemplate(EmailConstants.EmailTypes emailType, Dictionary <string, string> emailAttributes)
{
var to = new List <SendSmtpEmailTo>();
to.Add(new SendSmtpEmailTo(emailAttributes["ToEmail"], emailAttributes["ToUserName"]));
var sendSmtpEmail = new SendSmtpEmail(to: to);
sendSmtpEmail.TemplateId = EmailTypeToSendInBlueId(emailType);
sendSmtpEmail.Params = emailAttributes;
return(await SendViaSendInBlue(sendSmtpEmail));
}
private long EmailTypeToSendInBlueId(EmailConstants.EmailTypes emailType)
{
string emailTemplateId = "";
switch (emailType)
{
case EmailConstants.EmailTypes.PasswordReset:
emailTemplateId = emailSettings.SendInBlueSettings.PasswordResetId;
break;
case EmailConstants.EmailTypes.WelcomeEmailValidation:
emailTemplateId = emailSettings.SendInBlueSettings.WelcomeEmailValidationId;
break;
case EmailConstants.EmailTypes.PasswordResetUnknownEmail:
emailTemplateId = emailSettings.SendInBlueSettings.PasswordResetUnknownEmailId;
break;
case EmailConstants.EmailTypes.PasswordResetEmailNotValidated:
emailTemplateId = emailSettings.SendInBlueSettings.PasswordResetEmailNotValidatedId;
break;
case EmailConstants.EmailTypes.ChangePasswordEmail:
emailTemplateId = emailSettings.SendInBlueSettings.ChangePasswordEmailId;
break;
case EmailConstants.EmailTypes.CommunityInvitation:
emailTemplateId = emailSettings.SendInBlueSettings.CommunityInvitationId;
break;
case EmailConstants.EmailTypes.CommunityInvitationManager:
emailTemplateId = emailSettings.SendInBlueSettings.CommunityInvitationManagerId;
break;
case EmailConstants.EmailTypes.None:
throw new SendInBlueException("EmailType None");
}
if (emailTemplateId == "")
{
throw new SendInBlueException("EmailType Unknown: " + emailType.ToString());
}
try
{
return(Convert.ToInt64(emailTemplateId));
}
catch (Exception e)
{
throw new SendInBlueException(string.Format("EmailType {}: Could not convert {} to long. {}",
emailType, emailTemplateId, e.ToString()));
}
}
private string EmailTypeToSendgridId(EmailConstants.EmailTypes emailType)
{
string emailTemplateId = "";
switch (emailType)
{
case EmailConstants.EmailTypes.PasswordReset:
emailTemplateId = emailSettings.SendGridSettings.PasswordResetId;
break;
case EmailConstants.EmailTypes.WelcomeEmailValidation:
emailTemplateId = emailSettings.SendGridSettings.WelcomeEmailValidationId;
break;
case EmailConstants.EmailTypes.PasswordResetUnknownEmail:
emailTemplateId = emailSettings.SendGridSettings.PasswordResetUnknownEmailId;
break;
case EmailConstants.EmailTypes.PasswordResetEmailNotValidated:
emailTemplateId = emailSettings.SendGridSettings.PasswordResetEmailNotValidatedId;
break;
case EmailConstants.EmailTypes.ChangePasswordEmail:
emailTemplateId = emailSettings.SendGridSettings.ChangePasswordEmailId;
break;
case EmailConstants.EmailTypes.CommunityInvitation:
emailTemplateId = emailSettings.SendGridSettings.CommunityInvitationId;
break;
case EmailConstants.EmailTypes.CommunityInvitationManager:
emailTemplateId = emailSettings.SendGridSettings.CommunityInvitationManagerId;
break;
case EmailConstants.EmailTypes.SignupConfirmation:
emailTemplateId = emailSettings.SendGridSettings.SignupConfirmationId;
break;
case EmailConstants.EmailTypes.None:
throw new SendgridException("EmailType None");
}
if (emailTemplateId == "")
{
throw new SendgridException("EmailType Unknown: " + emailType.ToString());
}
return(emailTemplateId);
}
public async Task SendOneEmail(EmailConstants.EmailTypes emailType, Dictionary <string, string> emailAttributes)
{
if (EmailSettings.Type == EmailSettings.EmailTypeDisabled)
{
throw new SendEmailException("Email sending disabled");
}
// A base url for general links in the email - the front-end will decide the redirect location.
emailAttributes["EmailLink"] = this.MakeEmailLink("/email.html", "").ToString();
logger.LogDebug("SendOneEmail sending email {EmailType} {ClientIp}",
emailAttributes["EmailType"], emailAttributes["ClientIp"]);
var stopWatch = Stopwatch.StartNew();
bool success = false;
try
{
var worker = SendEmailWorkerFactory.Get(EmailSettings, logger);
if (worker == null)
{
throw new SendEmailException("Unknown email type " + EmailSettings.Type);
}
success = true;
var id = await worker.SendTemplate(emailType, emailAttributes);
logger.LogInformation("SendOneEmail: Send success. {EmailType} {ClientIp} {MessageId}",
emailAttributes["EmailType"], emailAttributes["ClientIp"], id);
}
finally
{
stopWatch.Stop();
EmailSendingHistogram.Labels(emailAttributes["EmailType"], EmailSettings.Type, success.ToString())
.Observe(stopWatch.Elapsed.TotalSeconds);
}
if (!success)
{
throw new UnableToSendEmailException();
}
}
public abstract Task <string> SendTemplate(EmailConstants.EmailTypes emailType,
Dictionary <string, string> emailAttributes);
public override async Task <string> SendTemplate(EmailConstants.EmailTypes emailType, Dictionary <string, string> emailAttributes)
{
Task <string> result = base.SendTemplate(emailType, emailAttributes);
string templateFile = $"{Path.Combine(this.emailSettings.FileTemplatePath, emailType.ToString())}.html";
string outputPath = this.emailSettings.FileOutputPath ?? Path.Combine(Path.GetTempPath(), "morphic-emails");
Directory.CreateDirectory(outputPath);
string saveAs = Path.Combine(outputPath, this.emailSettings.FileOverwrite
? $"{emailType}-output.html"
: $"{DateTime.Now:yyyyMMddTHHmmss}.{emailType}-output.html");
// Some generate some debug information.
StringBuilder debug = new StringBuilder();
debug.AppendLine($"\n\n<!-- {emailType} {DateTime.Now:R}")
.AppendLine($"Template: {Path.GetFileName(templateFile)}")
.AppendLine($"Output: {Path.GetFileName(saveAs)}")
.AppendLine()
.AppendLine($"{string.Join("\n", emailAttributes)}")
.AppendLine();
HashSet <string> usedKeys = new HashSet <string>();
string template;
try
{
template = await File.ReadAllTextAsync(templateFile);
}
catch (Exception e)
{
// Create a basic template, using the email attributes dictionary.
StringBuilder templateBuilder = new StringBuilder($"<html><body><pre>Email sent {DateTime.Now:R}\n\n");
templateBuilder.AppendLine(e.Message).AppendLine();
emailAttributes.Select(attr => $"{attr.Key}: {{{{ {attr.Key} }}}}\n")
.ToList()
.ForEach(s => templateBuilder.AppendLine(s));
templateBuilder.AppendLine("</pre></body></html>");
template = templateBuilder.ToString();
}
// Matches simple "handlebars" expressions, containing a key-name.
Regex fillEmail = new Regex(@"\{\{\s*([^}\s]+)\s*}}");
// Resolve the key-name with the value in the dictionary
string content = fillEmail.Replace(template, match =>
{
string key = match.Groups[1].Value;
if (emailAttributes.TryGetValue(key, out string?value))
{
usedKeys.Add(key);
}
else
{
debug.AppendLine($"Unknown: {key}");
}
return(value ?? match.Value);
});
debug.AppendLine($"Used: {string.Join(", ", usedKeys)}")
.AppendLine($"Unused: {string.Join(", ", emailAttributes.Keys.Except(usedKeys))}")
.AppendLine("-->");
logger.LogWarning("Debug Email Output {File}", new Uri(saveAs));
await File.WriteAllTextAsync(saveAs, content + debug, Encoding.UTF8);
return(await result);
}
