vaultwarden/src/mail.rs

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Rust
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use std::error::Error;
use native_tls::TlsConnector;
use native_tls::{Protocol};
use lettre::{EmailTransport, SmtpTransport, ClientTlsParameters, ClientSecurity};
use lettre::smtp::{ConnectionReuseParameters, SmtpTransportBuilder};
use lettre::smtp::authentication::{Credentials, Mechanism};
use lettre_email::EmailBuilder;
use MailConfig;
fn mailer(config: &MailConfig) -> SmtpTransport {
let client_security = if config.smtp_ssl {
let mut tls_builder = TlsConnector::builder().unwrap();
tls_builder.supported_protocols(&[
Protocol::Tlsv10, Protocol::Tlsv11, Protocol::Tlsv12
]).unwrap();
ClientSecurity::Required(
ClientTlsParameters::new(config.smtp_host.to_owned(), tls_builder.build().unwrap())
)
} else {
ClientSecurity::None
};
SmtpTransportBuilder::new((config.smtp_host.to_owned().as_str(), config.smtp_port), client_security)
.unwrap()
.credentials(Credentials::new(config.smtp_username.to_owned(), config.smtp_password.to_owned()))
.authentication_mechanism(Mechanism::Login)
.smtp_utf8(true)
.connection_reuse(ConnectionReuseParameters::ReuseUnlimited)
.build()
}
pub fn send_password_hint(address: &str, hint: &str, config: &MailConfig) -> Result<(), String> {
let email = EmailBuilder::new()
.to(address)
.from((config.smtp_from.to_owned(), "Bitwarden-rs"))
.subject("Your Master Password Hint")
.body(hint)
.build().unwrap();
match mailer(config).send(&email) {
Ok(_) => Ok(()),
Err(e) => Err(e.description().to_string()),
}
}