webframework_core/
form.rs

1use crate::request::{FromRequest, Request};
2use crate::WebResult;
3
4use serde::de::DeserializeOwned;
5use failure::{Fail, Context, ResultExt};
6
7#[derive(Clone, Eq, PartialEq, Debug, Fail)]
8pub enum FormErrorKind {
9    #[fail(display = "An error occured during deserialization")]
10    DeserializationError,
11    #[fail(display = "The Content-Type could not be determined")]
12    UnknownContentTypeError,
13}
14
15#[derive(Debug)]
16pub struct FormError {
17    inner: Context<FormErrorKind>,
18}
19
20impl_fail_boilerplate!(FormErrorKind, FormError);
21
22
23#[derive(Debug, Clone)]
24pub struct Form<'a, T> {
25    req: &'a Request,
26    typ: std::marker::PhantomData<T>,
27}
28
29impl<'a, T: DeserializeOwned> Form<'a, T> {
30    pub fn get<S: AsRef<str>>(&self, _path: S) -> WebResult<T> {
31
32        let content_type = self.req.headers().get(http::header::CONTENT_TYPE)
33            .ok_or(FormErrorKind::UnknownContentTypeError.into())
34            .and_then(|val| val.to_str().context(FormErrorKind::UnknownContentTypeError))?;
35
36        match content_type {
37            "application/x-www-form-urlencoded" => {
38                Ok(serde_urlencoded::from_bytes(
39                        self.req.body()).context(FormErrorKind::DeserializationError
40                  )?)
41            }
42
43            _ => {
44                Err(FormErrorKind::UnknownContentTypeError)?
45            }
46        }
47    }
48}
49
50impl<'a, T: DeserializeOwned> FromRequest<'a> for Form<'a, T> {
51    fn from_request(req: &'a Request) -> WebResult<Form<'a, T>> {
52        Ok(Form { req, typ: std::marker::PhantomData })
53    }
54}
webframework_core/form.rs

webframework_core/
form.rs
