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extern crate hyper;
extern crate url;
use self::hyper::Client;
use self::hyper::client::RequestBuilder;
use self::hyper::header::Headers;
use self::hyper::status::StatusCode;
use self::hyper::client::response::Response as HpResp;
use self::hyper::error::Error as HpErr;
use self::url::Url;
use std::io::{Read, Error as ReadErr};
use std::io::ErrorKind;
pub enum DownloadError{
BadStatus(HpResp),
TimedOut(HpResp),
ReadError(HpResp, ReadErr),
BadRequest(HpErr),
}
#[derive(Clone)]
pub enum Method {
Get,
Post,
}
pub struct Response {
pub url: Url,
pub headers: Headers,
pub body: Vec<u8>,
}
#[derive(Clone)]
pub struct RequestContent{
pub url: Url,
pub method: Method,
pub body: Option<String>,
}
pub struct Request
{
pub content: RequestContent,
pub client: Client,
}
impl Request {
pub fn download(self)-> Result<Response, DownloadError> {
let url = self.content.url.clone();
let mut client: RequestBuilder;
match self.content.method {
Method::Get => {
client = self.client.get(url);
},
Method::Post => {
client = self.client.post(url);
},
}
if let Some(ref body) = self.content.body{
client = client.body(body);
}
let response = client.send();
match response{
Ok(mut response) => {
if let StatusCode::Ok = response.status{
let mut buffer = vec![];
match response.read_to_end(&mut buffer){
Ok(_) => {
Ok(Response{
url: response.url.clone(),
headers: response.headers.clone(),
body: buffer,
})
}
Err(e) => {
match e.kind(){
ErrorKind::TimedOut => {
Err(DownloadError::TimedOut(response))
}
_ => {
Err(DownloadError::ReadError(response, e))
}
}
}
}
}
else{
Err(DownloadError::BadStatus(response))
}
},
Err(e) => Err(DownloadError::BadRequest(e))
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn request_download() {
let url = Url::parse("http://www.baidu.com").unwrap();
let client = Client::new();
let request:Request = Request{
url: url,
method: Method::Get,
body: None,
client: client,
};
request.download().unwrap();
}
}