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extern crate conduit;
extern crate fastcgi;
extern crate http;
use std::io;
use std::io::{BufReader, Write};
use conduit::Handler;
use inflector::cases::traincase::to_train_case;
use snafu::{ResultExt, Snafu};
#[derive(Debug, Snafu)]
pub enum RequestError {
#[snafu(display("{}", source))]
InvalidMethod { source: http::method::InvalidMethod },
#[snafu(display("{}", source))]
InvalidHeaderName { source: conduit::header::InvalidHeaderName },
#[snafu(display("{}", source))]
InvalidHeaderValue { source: conduit::header::InvalidHeaderValue },
}
pub type RequestResult<T, E = RequestError> = std::result::Result<T, E>;
struct FastCgiRequest<'a> {
request: &'a fastcgi::Request,
http_version: conduit::Version,
method: conduit::Method,
headers: conduit::HeaderMap,
}
impl<'a> FastCgiRequest<'a> {
pub fn new(request: &'a fastcgi::Request) -> RequestResult<Self> {
let method = Self::method(request)
.context(InvalidMethod)?;
let headers = Self::headers(request.params())?;
let r = Self {
request: request,
http_version: Self::version(&request),
method: method,
headers: headers,
};
Ok(r)
}
pub fn scheme(&self) -> conduit::Scheme {
let scheme = self.request.param("REQUEST_SCHEME").unwrap_or_default();
if scheme == "https" {
conduit::Scheme::Https
} else {
conduit::Scheme::Http
}
}
fn version(request: &'a fastcgi::Request) -> conduit::Version {
match request.param("SERVER_PROTOCOL").unwrap_or_default().as_str() {
"HTTP/0.9" => conduit::Version::HTTP_09,
"HTTP/1.0" => conduit::Version::HTTP_10,
"HTTP/1.1" => conduit::Version::HTTP_11,
"HTTP/2.0" => conduit::Version::HTTP_2,
"HTTP/3.0" => conduit::Version::HTTP_3,
_ => conduit::Version::default(),
}
}
fn method(
request: &'a fastcgi::Request
) -> Result<conduit::Method, http::method::InvalidMethod> {
conduit::Method::from_bytes(
request.param("REQUEST_METHOD")
.unwrap_or_default()
.as_bytes()
)
}
fn headers(params: fastcgi::Params) -> RequestResult<conduit::HeaderMap> {
let mut map = conduit::HeaderMap::new();
let headers = Self::headers_from_params(params);
for (name, value) in headers
.iter()
.map(|(name, value)| (name.as_bytes(), value.as_bytes()))
{
map.append(
conduit::header::HeaderName::from_bytes(name)
.context(InvalidHeaderName)?,
conduit::header::HeaderValue::from_bytes(value)
.context(InvalidHeaderValue)?,
);
}
Ok(map)
}
fn headers_from_params(params: fastcgi::Params) -> Vec<(String, String)> {
return params
.filter(|(key, _)| key.starts_with("HTTP_"))
.map(|(key, value)| {
let key = key.get(5..).unwrap_or_default();
let key = &key.replace("_", "-");
let key = &to_train_case(&key);
(key.to_owned(), value)
})
.collect()
}
}
// impl<'a> conduit::RequestExt for FastCgiRequest {
// fn http_version(&self) -> conduit::Version { todo!() }
// fn method(&self) -> &conduit::Method {
// self.method
// }
// fn scheme(&self) -> conduit::Scheme { todo!() }
// fn host(&'a self) -> conduit::Host<'a> { todo!() }
// fn virtual_root(&'a self) -> std::option::Option<&'a str> { todo!() }
// fn path(&'a self) -> &'a str { todo!() }
// fn query_string(&'a self) -> std::option::Option<&'a str> { todo!() }
// fn remote_addr(&self) -> std::net::SocketAddr { todo!() }
// fn content_length(&self) -> std::option::Option<u64> { todo!() }
// fn headers(&self) -> &conduit::HeaderMap { todo!() }
// fn body(&'a mut self) -> &'a mut (dyn std::io::Read + 'a) { todo!() }
// fn extensions(&'a self) -> &'a conduit::TypeMap { todo!() }
// fn mut_extensions(&'a mut self) -> &'a mut conduit::TypeMap { todo!() }
// }
struct Server;
impl Server {
pub fn start<H: Handler + 'static + Sync>(handler: H) -> io::Result<Server> {
Ok(Server{})
}
}
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