1 use crate::{error::LemmyError, settings::structs::Settings};
4 message::{Mailbox, MultiPart},
5 transport::smtp::{authentication::Credentials, extension::ClientId},
10 use std::str::FromStr;
13 pub mod translations {
14 rosetta_i18n::include_translations!();
17 type AsyncSmtpTransport = lettre::AsyncSmtpTransport<lettre::Tokio1Executor>;
19 pub async fn send_email(
25 ) -> Result<(), LemmyError> {
26 let email_config = settings
29 .ok_or_else(|| LemmyError::from_message("no_email_setup"))?;
30 let domain = settings.hostname.clone();
32 let (smtp_server, smtp_port) = {
33 let email_and_port = email_config.smtp_server.split(':').collect::<Vec<&str>>();
34 let email = *email_and_port
36 .ok_or_else(|| LemmyError::from_message("missing an email"))?;
37 let port = email_and_port
40 LemmyError::from_message("email.smtp_server needs a port, IE smtp.xxx.com:465")
47 // use usize::MAX as the line wrap length, since lettre handles the wrapping for us
48 let plain_text = html2text::from_read(html.as_bytes(), usize::MAX);
50 let email = Message::builder()
55 .expect("email from address isn't valid"),
58 Some(to_username.to_string()),
59 Address::from_str(to_email).expect("email to address isn't valid"),
61 .message_id(Some(format!("<{}@{}>", Uuid::new_v4(), settings.hostname)))
63 .multipart(MultiPart::alternative_plain_html(
67 .expect("email built incorrectly");
69 // don't worry about 'dangeous'. it's just that leaving it at the default configuration
73 let builder_dangerous = AsyncSmtpTransport::builder_dangerous(smtp_server).port(smtp_port);
75 let mut builder = match email_config.tls_type.as_str() {
76 "starttls" => AsyncSmtpTransport::starttls_relay(smtp_server)?,
77 "tls" => AsyncSmtpTransport::relay(smtp_server)?,
78 _ => builder_dangerous,
81 // Set the creds if they exist
82 let smtp_password = std::env::var("LEMMY_SMTP_PASSWORD")
84 .or(email_config.smtp_password);
86 if let (Some(username), Some(password)) = (email_config.smtp_login, smtp_password) {
87 builder = builder.credentials(Credentials::new(username, password));
90 let mailer = builder.hello_name(ClientId::Domain(domain)).build();
92 let result = mailer.send(email).await;
96 Err(e) => Err(LemmyError::from_error_message(e, "email_send_failed")),