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use std::collections::HashMap;
use actix_lua::{LuaMessage};
use actix_web::{
http, AsyncResponder,
FutureResponse, HttpResponse, HttpMessage, HttpRequest,
};
use futures::Future;
use serde_urlencoded;
use serde_json;
use crate::AppState;
fn extract_table_from_request(request: &HttpRequest<AppState>, body: String) -> HashMap<String, LuaMessage> {
let mut table = HashMap::new();
let query: HashMap<_, _> = request.query().iter()
.map(|(key, value)| (key.clone(), LuaMessage::String(value.clone())))
.collect();
let headers: HashMap<_, _> = request.headers().iter()
.map(|(key, value)| (
key.as_str().to_owned(),
LuaMessage::String(value.to_str().unwrap().to_owned()),
))
.collect();
let host = request.uri().host()
.map(|host| LuaMessage::String(host.to_owned()))
.unwrap_or(LuaMessage::Nil);
let port = request.uri().port_part()
.map(|port| LuaMessage::Number(port.as_u16() as f64))
.unwrap_or(LuaMessage::Nil);
let fragment = request.uri().to_string()
.rsplit("#")
.next()
.map(|fragment| LuaMessage::String(fragment.to_owned()))
.unwrap_or(LuaMessage::Nil);
let path = request.path().to_string();
let request_line = if request.query_string().is_empty() {
format!(
"{} {} {:?}",
request.method(),
request.path(),
request.version()
)
} else {
format!(
"{} {}?{} {:?}",
request.method(),
request.path(),
request.query_string(),
request.version()
)
};
let body_hashmap: Option<HashMap<String, String>> =
match request.headers().get(::actix_web::http::header::CONTENT_TYPE).map(|h| h.to_str()) {
Some(Ok("application/x-www-form-urlencoded")) => serde_urlencoded::from_str(&body).ok(),
Some(Ok("application/json")) => serde_json::from_str(&body).ok(),
Some(Ok(header)) => {
eprintln!("content type {} not supported", header);
None
},
Some(err@Err(_)) => {
eprintln!("could not parse content type into a valid string: {:?}", err);
None
},
_ => None
};
table.insert("body".to_owned(), match body_hashmap {
Some(body_hashmap) => {
LuaMessage::Table(
body_hashmap
.into_iter()
.map(|(k, v)| (k, LuaMessage::String(v)))
.collect()
)
},
_ => LuaMessage::String(body.clone())
});
table.insert("request_line".to_owned(), LuaMessage::String(request_line));
table.insert("method".to_owned(), LuaMessage::String(request.method().to_string()));
table.insert("headers".to_owned(), LuaMessage::Table(headers));
table.insert("query".to_owned(), LuaMessage::Table(query));
table.insert("address".to_owned(), host);
table.insert("port".to_owned(), port);
{
let info = request.connection_info();
table.insert("scheme".to_owned(), LuaMessage::String(info.scheme().to_string()));
table.insert("host".to_owned(), LuaMessage::String(info.host().to_string()));
if let Some(remote) = info.remote() {
table.insert("remote".to_owned(), LuaMessage::String(remote.to_string()));
}
}
table.insert("fragment".to_owned(), fragment);
table.insert("path".to_owned(), LuaMessage::String(path));
table.insert("body_raw".to_owned(), LuaMessage::String(body));
table
}
pub fn handler((request, body): (HttpRequest<AppState>, String)) -> FutureResponse<HttpResponse> {
let table = extract_table_from_request(&request, body);
let app_state = request.state();
let own_addr = if app_state.lua.is_none() {
Some(app_state.create_addr())
} else { None };
let addr = own_addr.as_ref().unwrap_or_else(|| { app_state.lua.as_ref().unwrap() });
addr.send(LuaMessage::Table(table))
.from_err()
.and_then(|res| match res {
LuaMessage::String(s) => Ok(HttpResponse::Ok().body(s)),
LuaMessage::Table(params) => {
let mut response = HttpResponse::Ok();
let body = match params.get("body") {
Some(LuaMessage::String(body)) => body.to_owned(),
Some(ref value @ _) => unimplemented!("Invalid body: {:?}", value),
None => String::new(),
};
if let Some(LuaMessage::Table(headers)) = params.get("headers") {
for (key, value) in headers.iter() {
let value = match value {
LuaMessage::String(value) => value.to_owned(),
LuaMessage::Number(number) => number.to_string(),
LuaMessage::Integer(number) => number.to_string(),
ref value @ _ => unimplemented!("Header value is not supported: {:?}", value),
};
response.header(key as &str, value);
}
}
match params.get("status") {
Some(LuaMessage::String(string)) => {
let number: u16 = string.parse()
.expect("Invalid response status");
let status = http::StatusCode::from_u16(number)
.expect("Invalid response status");
response.status(status);
},
Some(LuaMessage::Integer(number)) => {
let status = http::StatusCode::from_u16(*number as u16)
.expect("Invalid response status");
response.status(status);
},
_ => (),
}
Ok(response.body(body))
},
LuaMessage::Nil => {
Ok(HttpResponse::NotFound().finish())
},
_ => unimplemented!("Response {:?} is not supported", res),
})
.responder()
}