public async Task <IActionResult> Index(string email)
{
var issuer = $"{this.Request.Scheme}://{this.Request.Host}{this.Request.PathBase.Value}/";
var audience = _appSettings.B2CClientId;
var tokenDuration = _appSettings.LinkExpiresAfterMinutes;
// Build/compute the token that is used as an assertion value as part of the OIDC request to the B2C endpoint
var token = await _keyVaultCertificateHelper
.BuildSerializedIdTokenAsync(issuer, audience, tokenDuration, email)
.ConfigureAwait(false);
string link = BuildUrl(token);
// Read the HTML email template from the local file provided by and deployed with the project
// TODO - move the actual reading of the file to a singleton/DI
var emailHtmlTemplate = await System.IO.File
.ReadAllTextAsync(Path.Combine(_hostingEnvironment.ContentRootPath, "Template.html"))
.ConfigureAwait(false);
emailHtmlTemplate = emailHtmlTemplate.Replace("{0}", email);
emailHtmlTemplate = emailHtmlTemplate.Replace("{1}", link);
// Send the mail
await _mailSender
.SendEmailAsync(_appSettings.SMTPFromAddress, email, _appSettings.SMTPSubject, emailHtmlTemplate)
.ConfigureAwait(false);
ViewData["Message"] = $"Email sent to {email}";
return(View());
}
public async Task <IActionResult> Send(string email, string state)
{
var issuer = $"{this.Request.Scheme}://{this.Request.Host}{this.Request.PathBase.Value}/";
var audience = _appSettings.B2CClientId;
var tokenDuration = _appSettings.LinkExpiresAfterMinutes;
// Build/compute the token that is used as an assertion value as part of the OIDC request to the B2C endpoint
var token = await _keyVaultCertificateHelper
.BuildSerializedIdTokenAsync(issuer, audience, tokenDuration, email)
.ConfigureAwait(false);
string link = $"{_appSettings.B2CRedirectUri}?id_token_hint={token}&state={state}";
var emailHtmlTemplate = $"<h1>Welcome {email}</h1> In order to login please click on <a href='{link}'>this link</a><br/>Thanks";
// Send the mail
await _mailSender
.SendEmailAsync(_appSettings.SMTPFromAddress, email, _appSettings.SMTPSubject, emailHtmlTemplate)
.ConfigureAwait(false);
_logger.LogDebug("Sent email to {0} with state: {1}", email, state);
return(Content($"<h1>Email Sent!</h1> (but for debug click this <a href='{link}' target='_blank'>link</a>)", "text/html"));
}
