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use std::io::{Read, Write};
use std::net::{TcpListener, TcpStream};
use std::sync::Arc;
use std::thread;
use std::time::Duration;
use json::{JsonValue};
use log::info;
use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
use crate::body::Body;
use crate::cors::Cors;
use crate::header::Header;
pub mod request;
mod cors;
pub mod header;
pub mod body;
pub struct WebService {}
impl WebService {
pub fn bind(conf: JsonValue, path: &str, handle: fn(request: JsonValue) -> (JsonValue, i32, String)) {
let cors = Cors::default()
.allow_origin(conf["cors"]["allow_origin"].as_str().unwrap())
.allow_methods(conf["cors"]["allow_methods"].as_str().unwrap())
.allow_headers(conf["cors"]["allow_headers"].as_str().unwrap())
.allow_credentials(conf["cors"]["allow_credentials"].as_bool().unwrap())
.max_age(conf["cors"]["max_age"].as_i32().unwrap());
let url = conf["url"].to_string();
let public = format!("{}/{}", path.clone(), conf["public"]).to_string();
let ssl = conf["ssl"].as_bool().unwrap();
info!("http服务器启动 访问地址: {}",url);
info!("公共目录: {}", public);
info!("ssl开启: {}", ssl);
let acceptor = {
if ssl {
let ssl_privkey = format!("{}/{}", path.clone(), conf["ssl_privkey"]).to_string();
let ssl_certs = format!("{}/{}", path.clone(), conf["ssl_certs"]).to_string();
info!("privkey: {}", ssl_privkey);
info!("certs: {}", ssl_certs);
let mut acceptor = SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap();
acceptor.set_private_key_file(ssl_privkey, SslFiletype::PEM).unwrap();
acceptor.set_certificate_chain_file(ssl_certs).unwrap();
acceptor.check_private_key().unwrap();
Arc::new(acceptor.build())
} else {
Arc::new(SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap().build())
}
};
loop {
match TcpListener::bind(url.as_str()) {
Ok(listener) => {
for stream in listener.incoming() {
let cors = cors.clone();
let public = public.to_string().clone();
let stream = stream.unwrap();
let acceptor = acceptor.clone();
thread::spawn(move || {
WebService::stream(stream.try_clone().unwrap(), ssl.clone(), acceptor.clone(), public.as_str().clone(), cors.clone(), handle);
});
}
}
Err(e) => {
info!("启动错误:{} 5秒后重启", e.to_string());
thread::sleep(Duration::from_secs(5));
}
}
}
}
pub fn stream(stream: TcpStream, ssl: bool, acceptor: Arc<SslAcceptor>, public: &str, cors: Cors, fun: fn(request: JsonValue) -> (JsonValue, i32, String)) {
if ssl {
WebService::https(stream.try_clone().unwrap(), acceptor, public, cors, fun);
} else {
WebService::http(stream.try_clone().unwrap(), public, cors, fun);
}
}
pub fn http(mut stream: TcpStream, public: &str, cors: Cors, fun: fn(request: JsonValue) -> (JsonValue, i32, String)) {
let mut buf = vec![];
let mut buffer = [0; 1024];
let count = stream.read(&mut buffer).unwrap();
buf = [buf, buffer[0..count].to_vec()].concat();
match String::from_utf8(buf.clone()) {
Ok(data) => {
let header = Header::def(data.clone(), public.clone());
let data_length = header["data-length"].as_usize().unwrap();
let body_length = header["content-length"].as_usize().unwrap();
let header_length = header["header-length"].as_usize().unwrap();
let mut mun = data_length - header_length;
while mun < body_length {
let mut buffer = [0; 1024];
let count = stream.read(&mut buffer).unwrap();
mun += count;
buf = [buf, buffer[0..count].to_vec()].concat();
};
let body = Body::def(header.clone(), buf[header_length..].to_owned().clone());
let (_, body) = request::Http::default(cors.clone()).handle(header.clone(), body.clone(), fun);
stream.write(body.as_bytes()).unwrap();
stream.flush().unwrap();
}
Err(e) => {
info!("{}",e.to_string());
}
}
}
pub fn https(stream: TcpStream, acceptor: Arc<SslAcceptor>, public: &str, cors: Cors, fun: fn(request: JsonValue) -> (JsonValue, i32, String)) {
match acceptor.accept(stream) {
Ok(mut stream) => {
let mut buf = vec![];
let mut buffer = [0; 1024];
let count = stream.read(&mut buffer).unwrap();
buf = [buf, buffer[0..count].to_vec()].concat();
match String::from_utf8(buf.clone()) {
Ok(data) => {
let header = Header::def(data.clone(), public.clone());
let data_length = header["data-length"].as_usize().unwrap();
let body_length = header["content-length"].as_usize().unwrap();
let header_length = header["header-length"].as_usize().unwrap();
let mut mun = data_length - header_length;
while mun < body_length {
let mut buffer = [0; 1024];
let count = stream.read(&mut buffer).unwrap();
mun += count;
buf = [buf, buffer[0..count].to_vec()].concat();
};
let body = Body::def(header.clone(), buf[header_length..].to_owned().clone());
let (state, body) = request::Http::default(cors.clone()).handle(header.clone(), body.clone(), fun);
if state {
stream.ssl_write(body.as_bytes()).unwrap();
stream.flush().unwrap();
}
}
Err(e) => {
info!("{}",e.to_string());
}
}
}
Err(e) => {
info!("{}",e.to_string());
}
}
}
}