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#![allow(warnings)]
use std::cell::Cell;
use std::collections::HashMap;
use std::io;
use std::marker::Sync;
use std::str;
use std::str::FromStr;
use std::sync::{Arc, RwLock, Mutex, MutexGuard};
use std::cell::RefCell;
use time;
use http::{Request, Response, StatusCode, Method};
use http::response::Builder;
use http::header::SET_COOKIE;
use tokio::prelude::*;
use horrorshow;
use cookie::{Cookie, CookieBuilder};
use bytes::Bytes;
use router;
use cookie_store::CookieStore;
use cookie_store::to_cookie;
use http_server::HttpHandler;
mod handler_login;
mod views;
#[derive(Clone, Copy)]
enum Route {
Login,
Logout,
Info,
Check,
}
fn create_routing_table() -> router::RoutingTable<Route> {
let mut r = router::RoutingTable::new();
r.insert("/info", Route::Info);
r.insert("/login", Route::Login);
r.insert("/logout", Route::Logout);
r.insert("/check", Route::Check);
r
}
struct HeaderExtract<'a> {
totp_secrets: Vec<&'a str>,
cookies: Vec<Cookie<'a>>,
}
static HTTP_HEADER_X_TOTP_SECRET: &'static str = r"X-Totp-Secret";
static COOKIE_NAME: &'static str = r"totp_cookie";
#[derive(Clone)]
pub struct RequestHandler {
routing_table: router::RoutingTable<Route>,
}
pub trait ResponseBuilderExtra {
fn set_defaults(&mut self) -> &mut Self;
}
impl ResponseBuilderExtra for Builder {
fn set_defaults(&mut self) -> &mut Self {
self
.status(StatusCode::OK)
.header(::http::header::CONTENT_TYPE, "text/html; charset=utf-8")
.header("X-Frame-Options", "DENY")
}
}
pub(in request_handler) fn error_handler_internal(body: String) -> Response<String> {
Response::builder()
.set_defaults()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(body).unwrap()
}
impl HttpHandler<super::ApplicationState> for RequestHandler {
fn respond(&self, state: &super::ApplicationState, req: Request<Bytes>) -> Response<String> {
match self.routing_table.match_path(req.uri().path()) {
Ok((Route::Info, rest)) => info(self, state, &req, rest),
Ok((Route::Login, rest)) => login(state, &req, rest),
Ok((Route::Logout, rest)) => logout(state, &req, rest),
Ok((Route::Check, rest)) => check(state, &req, rest),
Err(error) => match error {
router::NoMatchingRoute => Response::builder().set_defaults()
.status(StatusCode::NOT_FOUND).body("Resource not found".to_string()).unwrap(),
}
}
}
}
impl RequestHandler {
pub fn make() -> RequestHandler {
RequestHandler { routing_table: create_routing_table() }
}
}
pub(in request_handler) fn is_logged_in(cookies: &Vec<Cookie>, cookie_store: &CookieStore) -> bool {
for cookie in cookies {
if cookie.name() == COOKIE_NAME {
let cookie_value = to_cookie(cookie.value());
if cookie_value.is_some() && cookie_store.is_cookie_authenticated(&cookie_value.unwrap()) {
return true;
}
}
}
false
}
fn info<'a>(request_handler: &RequestHandler, state: &super::ApplicationState,
req: &Request<Bytes>, path_rest: &'a str) -> Response<String> {
let ftime = |ts| -> String {
let ts = time::Timespec::new(ts, 0);
let tm = time::at_utc(ts);
time::strftime("%c", &tm).unwrap_or("</>".to_string())
};
let view = if state.debug {
let valid_cookies: Vec<(String, String)> = state.cookie_store.reader
.map_into(|k, v|
(k.to_string(), ftime(v[0] as i64)));
views::info_debug(path_rest, valid_cookies)
} else {
views::info(path_rest)
};
Response::builder().set_defaults()
.body(view).unwrap()
}
fn login<'a>(state: &super::ApplicationState, req: &Request<Bytes>, path_rest: &'a str,
) -> Response<String> {
let header_infos = match parse_header_infos(req) {
Ok(infos) => infos,
Err(message) => return error_handler_internal(message),
};
match *req.method() {
Method::GET => handler_login::GET(&header_infos, state, path_rest),
Method::POST => handler_login::POST(&header_infos, state, req),
_ => error_handler_internal("Wrong method".to_string()),
}
}
fn logout<'a>(state: &super::ApplicationState, req: &Request<Bytes>, path_rest: &'a str,
) -> Response<String> {
let header_infos = match parse_header_infos(req) {
Ok(infos) => infos,
Err(message) => return error_handler_internal(message),
};
let cookie_delete = CookieBuilder::new(COOKIE_NAME, "")
.http_only(true)
.path("/")
.expires(time::at_utc(time::Timespec::new(0, 0)))
.finish();
Response::builder().set_defaults()
.header(SET_COOKIE, cookie_delete.to_string())
.body(views::logout()).unwrap()
}
fn check<'a>(state: &super::ApplicationState, req: &Request<Bytes>, path_rest: &'a str) -> Response<String> {
let header_infos = match parse_header_infos(req) {
Ok(infos) => infos,
Err(message) => return error_handler_internal(message),
};
if is_logged_in(&header_infos.cookies, &state.cookie_store) {
Response::builder().set_defaults()
.body(Default::default()).unwrap()
} else {
Response::builder().set_defaults()
.status(StatusCode::UNAUTHORIZED)
.body("Cookie expired".to_string()).unwrap()
}
}
fn parse_header_infos(req: &Request<Bytes>) -> Result<HeaderExtract, String> {
let mut totp_secrets = Vec::new();
for header_value in req.headers().get_all(HTTP_HEADER_X_TOTP_SECRET) {
let value = header_value.to_str().or(Err("Failed to read totp-secret header value"))?;
totp_secrets.push(value);
}
let mut cookies = Vec::new();
for header_value in req.headers().get_all(::http::header::COOKIE) {
let value = header_value.to_str().or(Err("Failed to read cookie value"))?;
for cookie_part in value.split("; ") {
if cookie_part.is_empty() {
continue;
}
let cookie = Cookie::parse(cookie_part).or(Err("Failed to parse cookie value"))?;
cookies.push(cookie);
}
}
Ok(HeaderExtract { totp_secrets, cookies })
}
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