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use sendmail::error::SendmailResult;
use std::io::prelude::*;
use std::io::Read;
use std::process::{Command, Stdio};
use SendableEmail;
use Transport;
pub mod error;
#[derive(Debug, Default)]
#[cfg_attr(feature = "serde-impls", derive(Serialize, Deserialize))]
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> Transport<'a> for SendmailTransport {
type Result = SendmailResult;
fn send(&mut self, email: SendableEmail) -> SendmailResult {
let message_id = email.message_id().to_string();
let mut process = Command::new(&self.command)
.arg("-i")
.arg("-f")
.arg(
email
.envelope()
.from()
.map(|x| x.as_ref())
.unwrap_or("\"\""),
)
.arg("--")
.args(email.envelope.to())
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()?;
let mut message_content = String::new();
let _ = email.message().read_to_string(&mut message_content);
process
.stdin
.as_mut()
.unwrap()
.write_all(message_content.as_bytes())?;
info!("Wrote {} message to stdin", message_id);
let output = process.wait_with_output()?;
if output.status.success() {
Ok(())
} else {
Err(error::Error::Client("The message could not be sent"))
}
}
}