AppFlowy-Cloud/src/mailer.rs

89 lines
2.3 KiB
Rust

use lettre::message::header::ContentType;
use lettre::message::Message;
use lettre::transport::smtp::authentication::Credentials;
use lettre::Address;
use lettre::AsyncSmtpTransport;
use lettre::AsyncTransport;
use std::sync::Arc;
use std::sync::RwLock;
lazy_static::lazy_static! {
static ref HANDLEBARS: Arc<RwLock<handlebars::Handlebars<'static>>> =
Arc::new(handlebars::Handlebars::new().into());
}
#[derive(Clone)]
pub struct Mailer {
smtp_transport: AsyncSmtpTransport<lettre::Tokio1Executor>,
smtp_username: String,
}
impl Mailer {
pub async fn new(
smtp_username: String,
smtp_password: String,
smtp_host: &str,
smtp_port: u16,
) -> Result<Self, anyhow::Error> {
let creds = Credentials::new(smtp_username.clone(), smtp_password);
let smtp_transport = AsyncSmtpTransport::<lettre::Tokio1Executor>::relay(smtp_host)?
.credentials(creds)
.port(smtp_port)
.build();
let workspace_invite_template =
include_str!("../assets/mailer_templates/build_production/workspace_invitation.html");
HANDLEBARS
.write()
.unwrap()
.register_template_string("workspace_invite", workspace_invite_template)
.unwrap();
Ok(Self {
smtp_transport,
smtp_username,
})
}
pub async fn send_workspace_invite(
&self,
email: String,
param: WorkspaceInviteMailerParam,
) -> Result<(), anyhow::Error> {
let rendered = HANDLEBARS
.read()
.unwrap()
.render("workspace_invite", &param)?;
let email = Message::builder()
.from(lettre::message::Mailbox::new(
Some("AppFlowy Notification".to_string()),
self.smtp_username.parse::<Address>()?,
))
.to(lettre::message::Mailbox::new(
Some(param.username.clone()),
email.parse().unwrap(),
))
.subject(format!(
"Action required: {} invited you to {} in AppFlowy",
param.username, param.workspace_name
))
.header(ContentType::TEXT_HTML)
.body(rendered)?;
AsyncTransport::send(&self.smtp_transport, email).await?;
Ok(())
}
}
#[derive(serde::Serialize)]
pub struct WorkspaceInviteMailerParam {
pub user_icon_url: String,
pub username: String, // Inviter
pub workspace_name: String,
pub workspace_icon_url: String,
pub workspace_member_count: String,
pub accept_url: String,
}