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use std::time::Duration;
use lettre::{
message::Mailbox,
transport::smtp::client::{Tls, TlsParameters},
AsyncSmtpTransport, Message, Tokio1Executor,
};
use rocket::http::uri::Absolute;
use serde_json::json;
use crate::types::UserID;
pub struct Mailer {
from: Mailbox,
verify_base: Absolute<'static>,
transport: AsyncSmtpTransport<Tokio1Executor>,
}
impl Mailer {
pub fn new(
from: Mailbox,
host: &str,
port: u16,
starttls: bool,
verify_base: Absolute<'static>,
) -> anyhow::Result<Self> {
Ok(Mailer {
from,
verify_base,
transport: AsyncSmtpTransport::<Tokio1Executor>::builder_dangerous(host)
.port(port)
.tls(if starttls {
Tls::Required(TlsParameters::new(host.to_string())?)
} else {
Tls::None
})
.timeout(Some(Duration::from_secs(5)))
.build(),
})
}
pub(crate) async fn send_account_verify(
&self,
uid: &UserID,
to: &str,
code: &str,
) -> anyhow::Result<()> {
let fragment = base64::encode_config(
serde_json::to_string(&json!({
"uid": uid,
"email": to,
"code": code,
}))?,
base64::URL_SAFE,
);
let email = Message::builder()
.from(self.from.clone())
.to(to.parse()?)
.subject("account verify code")
.body(format!("{}/#/verify/{fragment}", self.verify_base))?;
lettre::AsyncTransport::send(&self.transport, email).await?;
Ok(())
}
pub(crate) async fn send_session_verify(&self, to: &str, code: &str) -> anyhow::Result<()> {
let email = Message::builder()
.from(self.from.clone())
.to(to.parse()?)
.subject("session verify code")
.body(code.to_string())?;
lettre::AsyncTransport::send(&self.transport, email).await?;
Ok(())
}
pub(crate) async fn send_password_changed(&self, to: &str) -> anyhow::Result<()> {
let email = Message::builder()
.from(self.from.clone())
.to(to.parse()?)
.subject("account password has been changed")
.body(String::from(
"your account password has been changed. if you haven't done this, \
you're probably in trouble now.",
))?;
lettre::AsyncTransport::send(&self.transport, email).await?;
Ok(())
}
pub(crate) async fn send_password_forgot(&self, to: &str, code: &str) -> anyhow::Result<()> {
let email = Message::builder()
.from(self.from.clone())
.to(to.parse()?)
.subject("account reset code")
.body(code.to_string())?;
lettre::AsyncTransport::send(&self.transport, email).await?;
Ok(())
}
pub(crate) async fn send_account_reset(&self, to: &str) -> anyhow::Result<()> {
let email = Message::builder()
.from(self.from.clone())
.to(to.parse()?)
.subject("account has been reset")
.body(String::from(
"your account has been reset. if you haven't done this, \
you're probably in trouble now.",
))?;
lettre::AsyncTransport::send(&self.transport, email).await?;
Ok(())
}
}
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