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use {EmailTransport, SendableEmail};
use sendmail::error::SendmailResult;
use std::io::Read;
use std::io::prelude::*;
use std::process::{Command, Stdio};
pub mod error;
#[derive(Debug, Default)]
pub struct SendmailTransport {
command: String,
}
impl SendmailTransport {
pub fn new() -> SendmailTransport {
SendmailTransport { command: "/usr/sbin/sendmail".to_string() }
}
pub fn new_with_command<S: Into<String>>(command: S) -> SendmailTransport {
SendmailTransport { command: command.into() }
}
}
impl<'a, T: Read + 'a> EmailTransport<'a, T, SendmailResult> for SendmailTransport {
fn send<U: SendableEmail<'a, T> + 'a>(&mut self, email: &'a U) -> SendmailResult {
let to_addresses: Vec<String> = email.to().iter().map(|x| x.to_string()).collect();
let mut process = Command::new(&self.command)
.args(
&[
"-i",
"-f",
&email.from().to_string(),
&to_addresses.join(" "),
],
)
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()?;
let mut message_content = String::new();
let _ = email.message().read_to_string(&mut message_content);
match process.stdin.as_mut().unwrap().write_all(
message_content.as_bytes(),
) {
Ok(_) => (),
Err(error) => return Err(From::from(error)),
}
info!("Wrote message to stdin");
if let Ok(output) = process.wait_with_output() {
if output.status.success() {
Ok(())
} else {
Err(From::from("The message could not be sent"))
}
} else {
Err(From::from("The sendmail process stopped"))
}
}
}