Files
lettre/examples/client.rs
Alexis Mousset 94d79862ff Error handling
2014-11-07 13:48:40 +01:00

111 lines
3.5 KiB
Rust

// Copyright 2014 Alexis Mousset. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
extern crate smtp;
extern crate getopts;
use std::io::stdin;
use std::io::net::tcp::TcpStream;
use std::string::String;
use std::io::net::ip::Port;
use std::os;
use smtp::client::Client;
use getopts::{optopt,optflag,getopts,OptGroup,usage};
fn sendmail(source_address: String, recipient_addresses: Vec<String>, message: String, server: String, port: Option<Port>, my_hostname: Option<String>) {
let mut email_client: Client<TcpStream> =
Client::new(
server,
port,
my_hostname);
let result = email_client.send_mail::<TcpStream>(
source_address,
recipient_addresses,
message
);
}
fn print_usage(description: String, _opts: &[OptGroup]) {
println!("{}", usage(description.as_slice(), _opts));
}
fn main() {
let args = os::args();
let mut args_string = Vec::new();
for arg in args.iter() {
args_string.push(arg.clone());
};
let program = args[0].clone();
let description = format!("Usage: {0} [options...] recipients\n\n\
This program reads a message on standard input until it reaches EOF,\
then tries to send it using the given paramters.\n\n\
Example: {0} -r user@example.org user@example.com < message.txt", program);
let opts = [
optopt("r", "reverse-path", "set the sender address", "FROM_ADDRESS"),
optopt("p", "port", "set the port to use, default is 25", "PORT"),
optopt("s", "server", "set the server to use, default is localhost", "SERVER"),
optopt("m", "my-hostname", "set the hostname used by the client", "MY_HOSTNAME"),
optflag("h", "help", "print this help menu"),
optflag("v", "verbose", "display the transaction details"),
];
let matches = match getopts(args_string.tail(), opts) {
Ok(m) => { m }
Err(f) => { panic!("{}", f) }
};
if matches.opt_present("h") {
print_usage(description, opts);
return;
}
let sender = match matches.opt_str("r") {
Some(sender) => sender,
None => {
println!("The sender option is required");
print_usage(program, opts);
return;
}
};
let server = match matches.opt_str("s") {
Some(server) => server,
None => String::from_str("localhost")
};
let my_hostname = match matches.opt_str("m") {
Some(my_hostname) => Some(my_hostname),
None => None
};
let port = match matches.opt_str("p") {
Some(port) => from_str::<Port>(port.as_slice()),
None => None
};
let recipients_str: &str = if !matches.free.is_empty() {
matches.free[0].as_slice()
} else {
print_usage(description, opts);
return;
};
let mut recipients = Vec::new();
for recipient in recipients_str.split(' ') {
recipients.push(String::from_str(recipient))
}
let mut message = String::new();
for line in stdin().lines() {
message.push_str(line.unwrap().as_slice());
}
sendmail(sender, recipients, message, server, port, my_hostname);
}