From f5c145e9e37103202db27aaed4eb0cd49e9c3808 Mon Sep 17 00:00:00 2001
From: qicosmos <qicosmos@linux.alibaba.com>
Date: Wed, 27 Mar 2024 14:44:04 +0800
Subject: [PATCH] use resolver

---
 include/ylt/coro_rpc/impl/coro_rpc_server.hpp | 21 ++++++-----------
 .../standalone/cinatra/coro_http_server.hpp   | 23 +++++++------------
 src/coro_rpc/tests/test_coro_rpc_server.cpp   |  4 ++--
 3 files changed, 17 insertions(+), 31 deletions(-)

diff --git a/include/ylt/coro_rpc/impl/coro_rpc_server.hpp b/include/ylt/coro_rpc/impl/coro_rpc_server.hpp
index d27464e13..7f37a47d9 100644
--- a/include/ylt/coro_rpc/impl/coro_rpc_server.hpp
+++ b/include/ylt/coro_rpc/impl/coro_rpc_server.hpp
@@ -308,14 +308,18 @@ class coro_rpc_server_base {
     ELOGV(INFO, "begin to listen");
     using asio::ip::tcp;
     asio::error_code ec;
-    auto addr = asio::ip::address::from_string(address_, ec);
-    if (ec) {
+    asio::ip::tcp::resolver::query query(address_, std::to_string(port_));
+    asio::ip::tcp::resolver resolver(acceptor_.get_executor());
+    asio::ip::tcp::resolver::iterator it = resolver.resolve(query, ec);
+
+    asio::ip::tcp::resolver::iterator it_end;
+    if (ec || it == it_end) {
       ELOGV(ERROR, "resolve address %s error : %s", address_.data(),
             ec.message().data());
       return coro_rpc::errc::bad_address;
     }
 
-    auto endpoint = tcp::endpoint(addr, port_);
+    auto endpoint = it->endpoint();
     acceptor_.open(endpoint.protocol(), ec);
     if (ec) {
       ELOGV(ERROR, "open failed, error : %s", ec.message().data());
@@ -420,13 +424,6 @@ class coro_rpc_server_base {
     acceptor_close_waiter_.get_future().wait();
   }
 
-  bool iequal(std::string_view a, std::string_view b) {
-    return std::equal(a.begin(), a.end(), b.begin(), b.end(),
-                      [](char a, char b) {
-                        return tolower(a) == tolower(b);
-                      });
-  }
-
   void init_address(std::string address) {
     if (size_t pos = address.find(':'); pos != std::string::npos) {
       auto port_sv = std::string_view(address).substr(pos + 1);
@@ -443,10 +440,6 @@ class coro_rpc_server_base {
       address = address.substr(0, pos);
     }
 
-    if (iequal(address, "localhost")) {
-      address = "127.0.0.1";
-    }
-
     address_ = std::move(address);
   }
 
diff --git a/include/ylt/standalone/cinatra/coro_http_server.hpp b/include/ylt/standalone/cinatra/coro_http_server.hpp
index e9220be48..68fae10fd 100644
--- a/include/ylt/standalone/cinatra/coro_http_server.hpp
+++ b/include/ylt/standalone/cinatra/coro_http_server.hpp
@@ -1,13 +1,5 @@
 #pragma once
 
-#include <asio/dispatch.hpp>
-#include <cstdint>
-#include <mutex>
-#include <type_traits>
-
-#include "asio/streambuf.hpp"
-#include "async_simple/Promise.h"
-#include "async_simple/coro/Lazy.h"
 #include "cinatra/coro_http_client.hpp"
 #include "cinatra/coro_http_response.hpp"
 #include "cinatra/coro_http_router.hpp"
@@ -518,14 +510,19 @@ class coro_http_server {
     CINATRA_LOG_INFO << "begin to listen";
     using asio::ip::tcp;
     asio::error_code ec;
-    auto addr = asio::ip::address::from_string(address_, ec);
-    if (ec) {
+
+    asio::ip::tcp::resolver::query query(address_, std::to_string(port_));
+    asio::ip::tcp::resolver resolver(acceptor_.get_executor());
+    asio::ip::tcp::resolver::iterator it = resolver.resolve(query, ec);
+
+    asio::ip::tcp::resolver::iterator it_end;
+    if (ec || it == it_end) {
       CINATRA_LOG_ERROR << "bad address: " << address_
                         << " error: " << ec.message();
       return std::errc::bad_address;
     }
 
-    auto endpoint = tcp::endpoint(addr, port_);
+    auto endpoint = it->endpoint();
     acceptor_.open(endpoint.protocol(), ec);
     if (ec) {
       CINATRA_LOG_ERROR << "acceptor open failed"
@@ -807,10 +804,6 @@ class coro_http_server {
       address = address.substr(0, pos);
     }
 
-    if (iequal0(address, "localhost")) {
-      address = "127.0.0.1";
-    }
-
     address_ = std::move(address);
   }
 
diff --git a/src/coro_rpc/tests/test_coro_rpc_server.cpp b/src/coro_rpc/tests/test_coro_rpc_server.cpp
index 7bcd75274..866815c23 100644
--- a/src/coro_rpc/tests/test_coro_rpc_server.cpp
+++ b/src/coro_rpc/tests/test_coro_rpc_server.cpp
@@ -92,13 +92,13 @@ struct CoroServerTester : ServerTester {
     }
 
     {
-      coro_rpc_server server(1, 9001, "x.x.x");
+      coro_rpc_server server(1, 9001, "x.x.x.x");
       [[maybe_unused]] auto r = server.async_start();
       CHECK(server.get_errc() == coro_rpc::errc::bad_address);
     }
 
     {
-      coro_rpc_server server(1, "x.x.x:9001");
+      coro_rpc_server server(1, "x.x.x.x:9001");
       [[maybe_unused]] auto r = server.async_start();
       CHECK(server.get_errc() == coro_rpc::errc::bad_address);
     }