use cookie::{Cookie, CookieJar};
use double_checked_cell_async::DoubleCheckedCell;
use http;
use http::header::{self, HeaderMap};
use http::method::Method;
use http::version::Version as HttpVersion;
use multimap::MultiMap;
use once_cell::sync::OnceCell;
use serde::de::DeserializeOwned;
use std::collections::HashMap;
use std::fmt::{self, Debug};
use std::net::SocketAddr;
use std::str::FromStr;
use url::Url;
use crate::http::errors::ReadError;
use crate::http::form::{self, FilePart, FormData};
use crate::http::header::{AsHeaderName, HeaderValue};
use crate::http::{Body, Mime};
use crate::Protocol;
pub struct Request {
url: Url,
local_addr: Option<SocketAddr>,
headers: HeaderMap,
body: Option<Body>,
method: Method,
cookies: CookieJar,
pub(crate) params: HashMap<String, String>,
queries: OnceCell<MultiMap<String, String>>,
form_data: DoubleCheckedCell<FormData>,
payload: DoubleCheckedCell<Vec<u8>>,
version: HttpVersion,
}
impl Debug for Request {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
writeln!(f, "Request {{")?;
writeln!(f, " url: {:?}", self.url)?;
writeln!(f, " method: {:?}", self.method.clone())?;
writeln!(f, " local_addr: {:?}", self.local_addr)?;
write!(f, "}}")?;
Ok(())
}
}
impl Request {
pub fn from_hyper(req: hyper::Request<Body>, local_addr: Option<SocketAddr>, protocol: &Protocol) -> Result<Request, String> {
let (
http::request::Parts {
method,
uri,
version,
headers,
..
},
body,
) = req.into_parts();
let url = {
let path_and_query = uri.path_and_query().map(|pq| pq.as_str()).unwrap_or("");
let mut socket_ip = String::new();
let (host, port) = if let Some(host) = uri.host() {
(host, uri.port().map(|p| p.as_u16()))
} else if let Some(host) = headers.get(header::HOST).and_then(|h| h.to_str().ok()) {
let mut parts = host.split(':');
let hostname = parts.next().unwrap();
let port = parts.next().and_then(|p| p.parse::<u16>().ok());
(hostname, port)
} else if version < HttpVersion::HTTP_11 {
if let Some(local_addr) = local_addr {
match local_addr {
SocketAddr::V4(addr4) => socket_ip.push_str(&format!("{}", addr4.ip())),
SocketAddr::V6(addr6) => socket_ip.push_str(&format!("[{}]", addr6.ip())),
}
(socket_ip.as_ref(), Some(local_addr.port()))
} else {
return Err("No fallback host specified".into());
}
} else {
return Err("No host specified in request".into());
};
let url_string = if let Some(port) = port {
format!("{}://{}:{}{}", protocol.name(), host, port, path_and_query)
} else {
format!("{}://{}{}", protocol.name(), host, path_and_query)
};
match Url::parse(&url_string) {
Ok(url) => url,
Err(e) => return Err(format!("Couldn't parse requested URL: {}", e)),
}
};
let cookies = if let Some(header) = headers.get("Cookie") {
let mut cookie_jar = CookieJar::new();
if let Ok(header) = header.to_str() {
for cookie_str in header.split(';').map(|s| s.trim()) {
if let Ok(cookie) = Cookie::parse_encoded(cookie_str).map(|c| c.into_owned()) {
cookie_jar.add_original(cookie);
}
}
}
cookie_jar
} else {
CookieJar::new()
};
Ok(Request {
queries: OnceCell::new(),
url,
local_addr,
headers,
body: Some(body),
method,
cookies,
params: HashMap::new(),
form_data: DoubleCheckedCell::new(),
payload: DoubleCheckedCell::new(),
version,
})
}
#[inline(always)]
pub fn url(&self) -> &Url {
&self.url
}
#[inline(always)]
pub fn method(&self) -> &Method {
&self.method
}
#[inline(always)]
pub fn version(&self) -> HttpVersion {
self.version
}
#[inline(always)]
pub fn body(&self) -> Option<&Body> {
self.body.as_ref()
}
#[inline(always)]
pub fn take_body(&mut self) -> Option<Body> {
self.body.take()
}
pub fn accept(&self) -> Vec<Mime> {
let mut list: Vec<Mime> = vec![];
if let Some(accept) = self.headers.get("accept").and_then(|h| h.to_str().ok()) {
let parts: Vec<&str> = accept.split(',').collect();
for part in parts {
if let Ok(mt) = part.parse() {
list.push(mt);
}
}
}
list
}
#[inline(always)]
pub fn frist_accept(&self) -> Option<Mime> {
let mut accept = self.accept();
if !accept.is_empty() {
Some(accept.remove(0))
} else {
None
}
}
#[inline(always)]
pub fn content_type(&self) -> Option<Mime> {
if let Some(ctype) = self.headers.get("content-type").and_then(|h| h.to_str().ok()) {
ctype.parse().ok()
} else {
None
}
}
#[inline(always)]
pub fn cookies(&self) -> &CookieJar {
&self.cookies
}
#[inline]
pub fn get_cookie<T>(&self, name: T) -> Option<&Cookie<'static>>
where
T: AsRef<str>,
{
self.cookies.get(name.as_ref())
}
#[inline(always)]
pub fn headers(&self) -> &HeaderMap {
&self.headers
}
#[inline]
pub fn get_header<K: AsHeaderName>(&self, key: K) -> Option<&HeaderValue> {
self.headers.get(key)
}
#[inline(always)]
pub fn params(&self) -> &HashMap<String, String> {
&self.params
}
#[inline]
pub fn get_param<'a, F>(&self, key: &'a str) -> Option<F>
where
F: FromStr,
{
self.params.get(key).and_then(|v| v.parse::<F>().ok())
}
pub fn queries(&self) -> &MultiMap<String, String> {
self.queries.get_or_init(|| self.url.query_pairs().into_owned().collect())
}
#[inline]
pub fn get_query<'a, F>(&self, key: &'a str) -> Option<F>
where
F: FromStr,
{
self.queries().get(key).and_then(|v| v.parse::<F>().ok())
}
#[inline]
pub async fn get_form<F>(&mut self, key: &str) -> Option<F>
where
F: FromStr,
{
self.form_data()
.await
.as_ref()
.ok()
.and_then(|ps| ps.fields.get(key))
.and_then(|v| v.parse::<F>().ok())
}
#[inline]
pub async fn get_file(&mut self, key: &str) -> Option<&FilePart> {
self.form_data().await.as_ref().ok().and_then(|ps| ps.files.get(key))
}
#[inline]
pub async fn get_form_or_query<F>(&mut self, key: &str) -> Option<F>
where
F: FromStr,
{
self.get_form(key.as_ref()).await.or_else(|| self.get_query(key))
}
#[inline]
pub async fn get_query_or_form<F>(&mut self, key: &str) -> Option<F>
where
F: FromStr,
{
self.get_query(key.as_ref()).or(self.get_form(key).await)
}
pub async fn payload(&mut self) -> Result<&Vec<u8>, ReadError> {
let ctype = self.headers().get(header::CONTENT_TYPE).and_then(|v| v.to_str().ok()).unwrap_or("");
if ctype == "application/x-www-form-urlencoded" || ctype.starts_with("multipart/form-data") {
Err(ReadError::General(String::from("failed to read data1")))
} else if ctype.starts_with("application/json") || ctype.starts_with("text/") {
let body = self.body.take();
self.payload
.get_or_try_init(async {
match body {
Some(body) => read_body_bytes(body).await,
None => Err(ReadError::General(String::from("failed to read data2"))),
}
})
.await
} else {
Err(ReadError::General(String::from("failed to read data3")))
}
}
pub async fn form_data(&mut self) -> Result<&FormData, ReadError> {
let ctype = self.headers().get(header::CONTENT_TYPE).and_then(|v| v.to_str().ok()).unwrap_or("");
if ctype == "application/x-www-form-urlencoded" || ctype.starts_with("multipart/form-data") {
let body = self.body.take();
let headers = self.headers();
self.form_data
.get_or_try_init(async {
match body {
Some(body) => form::read_form_data(headers, body).await,
None => Err(ReadError::General("empty body".into())),
}
})
.await
} else {
Err(ReadError::General(String::from("failed to read data4")))
}
}
#[inline]
pub async fn read_from_json<T>(&mut self) -> Result<T, ReadError>
where
T: DeserializeOwned,
{
match self.payload().await {
Ok(body) => Ok(serde_json::from_slice::<T>(&body)?),
Err(_) => Err(ReadError::General("ddd".into())),
}
}
#[inline]
pub async fn read_from_form<T>(&mut self) -> Result<T, ReadError>
where
T: DeserializeOwned,
{
match self.form_data().await {
Ok(form_data) => {
let data = serde_json::to_value(&form_data.fields)?;
Ok(serde_json::from_value::<T>(data)?)
}
Err(_) => Err(ReadError::General("ddd".into())),
}
}
#[inline]
pub async fn read<T>(&mut self) -> Result<T, ReadError>
where
T: DeserializeOwned,
{
let ctype = self.headers().get(header::CONTENT_TYPE).and_then(|v| v.to_str().ok()).unwrap_or("");
if ctype == "application/x-www-form-urlencoded" || ctype.starts_with("multipart/form-data") {
self.read_from_form().await
} else if ctype.starts_with("application/json") {
self.read_from_json().await
} else {
Err(ReadError::General(String::from("failed to read data5")))
}
}
}
pub trait BodyReader: Send {}
pub(crate) async fn read_body_bytes(body: Body) -> Result<Vec<u8>, ReadError> {
hyper::body::to_bytes(body)
.await
.map_err(|_| ReadError::General("read body bytes error".into()))
.map(|d| d.to_vec())
}