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extern crate chrono;
extern crate futures;
extern crate hyper;
extern crate hyper_tls;
extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate serde_json;
extern crate tokio_core;
extern crate url;
use std::str;
use std::str::FromStr;
use std::option::Option;
use std::env;
use std::io;
use futures::{Future, Stream, future};
use tokio_core::reactor::Handle;
use hyper::client::{FutureResponse, HttpConnector};
use hyper_tls::HttpsConnector;
use hyper::{Body, Request, Uri, StatusCode};
use hyper::header::{Authorization, Basic};
use serde_json::value::Value;
pub const BASE_URI: &str = "https://api.twilio.com";
pub mod calls;
pub mod messages;
mod serde_helper;
pub struct Client {
account_sid: String,
auth_token: String,
client: hyper::Client<HttpsConnector<HttpConnector>, Body>,
}
#[derive(Debug)]
pub enum TwilioError {
Hyper(hyper::error::Error),
Serde(serde_json::Error),
BadResponse(hyper::Response),
MalformedResponse,
}
pub struct Page<T> {
pub items: Vec<T>,
pub next_page_uri: Option<Uri>,
}
pub trait ToUrlEncoded {
fn to_url_encoded(&self) -> String;
}
impl Client {
pub fn new(account_sid: &str, auth_token: &str, handle: &Handle) -> Result<Client, io::Error> {
let client = hyper::Client::configure()
.connector(HttpsConnector::new(4, handle).unwrap())
.build(handle);
Ok(Client {
account_sid: account_sid.to_string(),
auth_token: auth_token.to_string(),
client: client,
})
}
pub fn new_from_env(handle: &Handle) -> Result<Client, io::Error> {
let account_sid = env::var("ACCOUNT_SID").expect("ACCOUNT_SID env variable must be set!");
let auth_token = env::var("AUTH_TOKEN").expect("AUTH_TOKEN env variable must be set!");
Self::new(&account_sid, &auth_token, handle)
}
fn send_request(&self, mut req: Request<Body>) -> FutureResponse {
req.headers_mut().set(Authorization(Basic {
username: self.account_sid.to_owned(),
password: Some(self.auth_token.to_owned()),
}));
self.client.request(req)
}
fn make_req<'de, T>(&self, req: Request<Body>) -> Box<Future<Item = T, Error = TwilioError> + 'de>
where T: 'de + serde::de::DeserializeOwned
{
let fut = self.send_request(req)
.map_err(|err| TwilioError::Hyper(err))
.and_then(|res| {
match res.status() {
StatusCode::Ok | StatusCode::Created => future::ok(res),
_ => future::err(TwilioError::BadResponse(res)),
}
})
.and_then(|res| {
res.body().concat2().map_err(|err| TwilioError::Hyper(err))
})
.and_then(move |body| {
let call_res = serde_json::from_slice(&body).map_err(|err| TwilioError::Serde(err));
future::result(call_res)
});
Box::new(fut)
}
fn get_page(&self, req: Request<Body>) -> Box<Future<Item = Page<calls::Call>, Error = TwilioError>> {
let fut = self.send_request(req)
.map_err(|err| TwilioError::Hyper(err))
.and_then(|res| {
res.body().concat2().map_err(|err| TwilioError::Hyper(err))
})
.and_then(move |body| {
let call_res: Result<Value, TwilioError> = serde_json::from_slice(&body)
.map_err(|err| TwilioError::Serde(err));
let final_res = call_res.and_then(move|v| {
let next_page_uri = match v["next_page_uri"] {
Value::String(ref uri) => Uri::from_str(&format!("{}{}", BASE_URI, uri)).ok(),
_ => None,
};
v.get("calls")
.ok_or(TwilioError::MalformedResponse)
.and_then(move |v| v.as_array().ok_or(TwilioError::MalformedResponse))
.map(move|calls| {
let des_calls: Vec<calls::Call> = calls.to_owned().into_iter().map(move|c| {
let call: calls::Call = serde_json::from_value(c).unwrap();
call
}).collect();
Page {
items: des_calls,
next_page_uri,
}
})
});
future::result(final_res)
});
Box::new(fut)
}
}