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use std::{fmt, ops};
use actix_http::error::Error;
use serde::de;
use serde_urlencoded;
use crate::dev::Payload;
use crate::extract::FromRequest;
use crate::request::HttpRequest;
#[derive(PartialEq, Eq, PartialOrd, Ord)]
pub struct Query<T>(T);
impl<T> Query<T> {
pub fn into_inner(self) -> T {
self.0
}
}
impl<T> ops::Deref for Query<T> {
type Target = T;
fn deref(&self) -> &T {
&self.0
}
}
impl<T> ops::DerefMut for Query<T> {
fn deref_mut(&mut self) -> &mut T {
&mut self.0
}
}
impl<T: fmt::Debug> fmt::Debug for Query<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.0.fmt(f)
}
}
impl<T: fmt::Display> fmt::Display for Query<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.0.fmt(f)
}
}
impl<T> FromRequest for Query<T>
where
T: de::DeserializeOwned,
{
type Config = ();
type Error = Error;
type Future = Result<Self, Error>;
#[inline]
fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
serde_urlencoded::from_str::<T>(req.query_string())
.map(|val| Ok(Query(val)))
.unwrap_or_else(|e| {
log::debug!(
"Failed during Query extractor deserialization. \
Request path: {:?}",
req.path()
);
Err(e.into())
})
}
}
#[cfg(test)]
mod tests {
use derive_more::Display;
use serde_derive::Deserialize;
use super::*;
use crate::test::TestRequest;
#[derive(Deserialize, Debug, Display)]
struct Id {
id: String,
}
#[test]
fn test_request_extract() {
let req = TestRequest::with_uri("/name/user1/").to_srv_request();
let (req, mut pl) = req.into_parts();
assert!(Query::<Id>::from_request(&req, &mut pl).is_err());
let req = TestRequest::with_uri("/name/user1/?id=test").to_srv_request();
let (req, mut pl) = req.into_parts();
let mut s = Query::<Id>::from_request(&req, &mut pl).unwrap();
assert_eq!(s.id, "test");
assert_eq!(format!("{}, {:?}", s, s), "test, Id { id: \"test\" }");
s.id = "test1".to_string();
let s = s.into_inner();
assert_eq!(s.id, "test1");
}
}