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Copy pathmiddleware.rs
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122 lines (113 loc) · 4.61 KB
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use http_body_util::{BodyExt, Full};
use hyper::{body::Bytes, header::HeaderValue};
use crate::{
log_debug, log_error, log_info, log_trace, if_else, HttpContext, HttpResponse,
Next, Response, CONTENT_TYPE
};
/// middleware interface
#[async_trait::async_trait]
pub trait HttpMiddleware: Send + Sync + 'static {
async fn handle<'a>(&'a self, ctx: HttpContext, next: Next<'a>) -> HttpResponse;
}
/// Log middleware，访问日志中间件
pub struct AccessLog;
/// Cors middleware，跨域访问中间件
pub struct CorsMiddleware;
#[async_trait::async_trait]
impl HttpMiddleware for AccessLog {
async fn handle<'a>(&'a self, ctx: HttpContext, next: Next<'a>) -> HttpResponse {
let start = std::time::Instant::now();
let ip = ctx.remote_ip();
let id = ctx.id;
let method = ctx.req.method().clone();
let path = String::from(ctx.req.uri().path());
log_debug!(id, "{method} \x1b[33m{path}\x1b[0m");
// 记录请求参数日志
if log::log_enabled!(log::Level::Debug) {
if let Some(query) = ctx.req.uri().query() {
if !query.is_empty() {
log_debug!(id, "[QUERY] {query}");
}
}
}
// 记录请求头
if log::log_enabled!(log::Level::Trace) {
let mut buf = String::with_capacity(512);
for header in ctx.req.headers() {
buf.push_str("\n\t");
buf.push_str(header.0.as_str());
buf.push_str(": ");
buf.push_str(std::str::from_utf8(header.1.as_bytes()).unwrap());
}
log_trace!(id, "[HEADER] ->{buf}");
}
// 记录body
if log::log_enabled!(log::Level::Debug) {
if let Some(ct) = ctx.req.headers().get(CONTENT_TYPE) {
let ct = ct.as_bytes();
if ct.starts_with(b"application/json")
|| ct.starts_with(b"application/x-www-form-urlencoded")
{
log_debug!(id, "[BODY] {}", std::str::from_utf8(&ctx.body).unwrap());
}
}
}
let mut res = next.run(ctx).await;
// 输出接口调用耗时
let ms = start.elapsed().as_millis();
match &res {
Ok(res) => {
let c = if_else!(res.status() == hyper::StatusCode::OK, 2, 1);
log_info!(
id,
"{method} \x1b[34m{path} \x1b[3{c}m{}\x1b[0m {ms}ms, client: {ip}",
res.status().as_u16()
);
}
Err(e) => log_error!(
id,
"{method} \x1b[34m{path}\x1b[0m \x1b[31m500\x1b[0m {ms}ms, error: {e:?}"
),
};
// 记录回复结果日志
if log::log_enabled!(log::Level::Trace) {
if let Ok(r) = res {
let (parts, body) = r.into_parts();
let body: Bytes = body.collect().await.unwrap().to_bytes();
log_trace!(id, "[RESP] {}", std::str::from_utf8(&body).unwrap());
res = Ok(Response::from_parts(parts, Full::from(body)));
}
}
res
}
}
#[async_trait::async_trait]
impl HttpMiddleware for CorsMiddleware {
async fn handle<'a>(&'a self, ctx: HttpContext, next: Next<'a>) -> HttpResponse {
use hyper::header::{
ALLOW,
ACCESS_CONTROL_ALLOW_HEADERS,
ACCESS_CONTROL_ALLOW_METHODS,
ACCESS_CONTROL_ALLOW_ORIGIN
};
let is_options = ctx.req.method() == hyper::Method::OPTIONS;
let allow_host = HeaderValue::from_str("*").unwrap();
// options请求，无需处理，直接返回
if is_options {
Ok(
hyper::Response::builder()
.header(ACCESS_CONTROL_ALLOW_HEADERS, allow_host.clone())
.header(ACCESS_CONTROL_ALLOW_METHODS, allow_host.clone())
.header(ACCESS_CONTROL_ALLOW_ORIGIN, allow_host.clone())
.header(ALLOW, HeaderValue::from_str("GET,HEAD,OPTIONS").unwrap())
.body(Full::<Bytes>::new(Bytes::new()))?)
} else {
let mut res = next.run(ctx).await?;
let h = res.headers_mut();
h.append(ACCESS_CONTROL_ALLOW_HEADERS, allow_host.clone());
h.append(ACCESS_CONTROL_ALLOW_METHODS, allow_host.clone());
h.append(ACCESS_CONTROL_ALLOW_ORIGIN, allow_host.clone());
Ok(res)
}
}
}