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extern crate multipart;
extern crate iron;
extern crate env_logger;
use std::io::{self, Write};
use multipart::mock::StdoutTee;
use multipart::server::{Multipart, Entries, SaveResult};
use iron::prelude::*;
use iron::status;
fn main() {
env_logger::init();
Iron::new(process_request).http("localhost:80").expect("Could not bind localhost:80");
}
/// Processes a request and returns response or an occured error.
fn process_request(request: &mut Request) -> IronResult<Response> {
// Getting a multipart reader wrapper
match Multipart::from_request(request) {
Ok(mut multipart) => {
// Fetching all data and processing it.
// save().temp() reads the request fully, parsing all fields and saving all files
// in a new temporary directory under the OS temporary directory.
match multipart.save().temp() {
SaveResult::Full(entries) => process_entries(entries),
SaveResult::Partial(entries, reason) => {
process_entries(entries.keep_partial())?;
Ok(Response::with((
status::BadRequest,
format!("error reading request: {}", reason.unwrap_err())
)))
}
SaveResult::Error(error) => Ok(Response::with((
status::BadRequest,
format!("error reading request: {}", error)
))),
}
}
Err(_) => {
Ok(Response::with((status::BadRequest, "The request is not multipart")))
}
}
}
/// Processes saved entries from multipart request.
/// Returns an OK response or an error.
fn process_entries(entries: Entries) -> IronResult<Response> {
let mut data = Vec::new();
{
let stdout = io::stdout();
let tee = StdoutTee::new(&mut data, &stdout);
entries.write_debug(tee).map_err(|e| {
IronError::new(
e,
(status::InternalServerError, "Error printing request fields")
)
})?;
}
let _ = writeln!(data, "Entries processed");
Ok(Response::with((status::Ok, data)))
}
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