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using System.Text.Encodings.Web ;
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using BTCPayServer.Services.Mails ;
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using MimeKit ;
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namespace BTCPayServer.Services
{
public static class EmailSenderExtensions
{
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private static string BODY_STYLE = "font-family: Open Sans, Helvetica Neue,Arial,sans-serif; font-color: #292929;" ;
private static string HEADER_HTML = "<h1 style='font-size:1.2rem'>BTCPay Server</h1><br/>" ;
private static string BUTTON_HTML = "<a href='{button_link}' type='submit' style='min-width: 2em;min-height: 20px;text-decoration-line: none;cursor: pointer;display: inline-block;font-weight: 400;color: #fff;text-align: center;vertical-align: middle;user-select: none;background-color: #51b13e;border-color: #51b13e;border: 1px solid transparent;padding: 0.375rem 0.75rem;font-size: 1rem;line-height: 1.5;border-radius: 0.25rem;transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;'>{button_description}</a>" ;
private static string CallToAction ( string actionName , string actionLink )
{
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var button = $"{BUTTON_HTML}" . Replace ( "{button_description}" , actionName , System . StringComparison . InvariantCulture ) ;
return button . Replace ( "{button_link}" , HtmlEncoder . Default . Encode ( actionLink ) , System . StringComparison . InvariantCulture ) ;
}
private static string CreateEmailBody ( string body )
{
return $"<html><body style='{BODY_STYLE}'>{HEADER_HTML}{body}</body></html>" ;
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}
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public static void SendEmailConfirmation ( this IEmailSender emailSender , MailboxAddress address , string link )
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{
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emailSender . SendEmail ( address , "Confirm your email" , CreateEmailBody (
$"Please confirm your account.<br/><br/>{CallToAction(" Confirm Email ", link)}" ) ) ;
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}
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public static void SendApprovalConfirmation ( this IEmailSender emailSender , MailboxAddress address , string link )
{
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emailSender . SendEmail ( address , "Your account has been approved" , CreateEmailBody (
$"Your account has been approved and you can now <a href='{HtmlEncoder.Default.Encode(link)}'>login here</a>." ) ) ;
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}
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public static void SendResetPassword ( this IEmailSender emailSender , MailboxAddress address , string link )
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{
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emailSender . SendEmail ( address , "Update Password" , CreateEmailBody (
$"A request has been made to reset your BTCPay Server password. Please set your password by clicking below.<br/><br/>{CallToAction(" Update Password ", link)}" ) ) ;
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}
public static void SendInvitation ( this IEmailSender emailSender , MailboxAddress address , string link )
{
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emailSender . SendEmail ( address , "Invitation" , CreateEmailBody (
$"Please complete your account setup by clicking <a href='{HtmlEncoder.Default.Encode(link)}'>this link</a>." ) ) ;
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}
public static void SendNewUserInfo ( this IEmailSender emailSender , MailboxAddress address , string newUserInfo , string link )
{
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emailSender . SendEmail ( address , newUserInfo , CreateEmailBody (
$"{newUserInfo}. You can verify and approve the account here: <a href='{HtmlEncoder.Default.Encode(link)}'>User details</a>" ) ) ;
}
public static void SendUserInviteAcceptedInfo ( this IEmailSender emailSender , MailboxAddress address , string userInfo , string link )
{
emailSender . SendEmail ( address , userInfo , CreateEmailBody (
$"{userInfo}. You can view the store users here: <a href='{HtmlEncoder.Default.Encode(link)}'>Store users</a>" ) ) ;
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}
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}
}