From c0d9d61e3330d4f69a9547cc3d0e62970fb7427e Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Fri, 13 Jan 2023 17:40:09 +0100
Subject: Added webapp-runner

---
 plugins/fcgi/fastcgiprocess.cpp | 84 ++++++++++++++++++++++++-----------------
 1 file changed, 49 insertions(+), 35 deletions(-)

(limited to 'plugins/fcgi/fastcgiprocess.cpp')

diff --git a/plugins/fcgi/fastcgiprocess.cpp b/plugins/fcgi/fastcgiprocess.cpp
index dd51583..d43fa75 100644
--- a/plugins/fcgi/fastcgiprocess.cpp
+++ b/plugins/fcgi/fastcgiprocess.cpp
@@ -61,6 +61,51 @@ FastCGIProcess::~FastCGIProcess()
  stop();
 }
 
+void run_fcgi_app(const std::string& command, const std::string& host, unsigned short port)
+{
+ boost::asio::io_context ioc;
+ boost::asio::ip::tcp::resolver resolver(ioc);
+ boost::asio::ip::tcp::acceptor acceptor(ioc);
+ auto const results = resolver.resolve(host.c_str(), std::to_string(port).c_str());
+ if (results.begin() == results.end())
+  std::runtime_error("no resolve result");
+ boost::asio::ip::tcp::endpoint endpoint{*results.begin()};
+ acceptor.open(endpoint.protocol());
+ acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
+ acceptor.bind(endpoint);
+ acceptor.listen();
+ int fd{acceptor.native_handle()};
+ if (fd != FCGI_LISTENSOCK_FILENO) {
+  close(FCGI_LISTENSOCK_FILENO);
+  dup2(fd, FCGI_LISTENSOCK_FILENO);
+  close(fd);
+ }
+
+ execl(command.c_str(),  command.c_str(), (const char*)nullptr);
+}
+
+void run_fcgi_app(const std::string& command, const std::filesystem::path& socket_path)
+{
+ boost::asio::io_context ioc;
+ boost::asio::local::stream_protocol::acceptor file_acceptor(ioc);
+ std::error_code ec;
+ fs::remove(socket_path, ec); // otherwise we get: "bind: Address already in use"
+
+ boost::asio::local::stream_protocol::endpoint endpoint(socket_path);
+ file_acceptor.open(endpoint.protocol());
+ file_acceptor.set_option(boost::asio::local::stream_protocol::acceptor::reuse_address(true));
+ file_acceptor.bind(endpoint);
+ file_acceptor.listen();
+ int fd {file_acceptor.native_handle()};
+ if (fd != FCGI_LISTENSOCK_FILENO) {
+  close(FCGI_LISTENSOCK_FILENO);
+  dup2(fd, FCGI_LISTENSOCK_FILENO);
+  close(fd);
+ }
+
+ execl(command.c_str(),  command.c_str(), (const char*)nullptr);
+}
+
 void FastCGIProcess::start()
 {
  if (m_pid != 0)
@@ -72,41 +117,10 @@ void FastCGIProcess::start()
 
  if (m_pid == 0) { // child process branch
   try {
-   int fd{};
-   boost::asio::io_context ioc;
-   boost::asio::ip::tcp::resolver resolver(ioc);
-   boost::asio::ip::tcp::acceptor acceptor(ioc);
-   boost::asio::local::stream_protocol::acceptor file_acceptor(ioc);
-
-   if (m_socket_path.empty()) { // tcp connection
-    auto const results = resolver.resolve(m_host.c_str(), std::to_string(m_port).c_str());
-    if (results.begin() == results.end())
-     std::runtime_error("no resolve result");
-    boost::asio::ip::tcp::endpoint endpoint{*results.begin()};
-    acceptor.open(endpoint.protocol());
-    acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
-    acceptor.bind(endpoint);
-    acceptor.listen();
-    fd = acceptor.native_handle();
-   } else { // unix domain socket
-    std::error_code ec;
-    fs::remove(m_socket_path, ec); // otherwise we get: "bind: Address already in use"
-
-    boost::asio::local::stream_protocol::endpoint endpoint(m_socket_path);
-    file_acceptor.open(endpoint.protocol());
-    file_acceptor.set_option(boost::asio::local::stream_protocol::acceptor::reuse_address(true));
-    file_acceptor.bind(endpoint);
-    file_acceptor.listen();
-    fd = file_acceptor.native_handle();
-   }
-
-   if (fd != FCGI_LISTENSOCK_FILENO) {
-    close(FCGI_LISTENSOCK_FILENO);
-    dup2(fd, FCGI_LISTENSOCK_FILENO);
-    close(fd);
-   }
-
-   execl(m_command.c_str(),  m_command.c_str(), (const char*)nullptr);
+   if (m_socket_path.empty())
+    run_fcgi_app(m_command, m_host, m_port);
+   else
+    run_fcgi_app(m_command, m_socket_path);
   } catch (const std::exception& ex) {
    std::cout << "FastCGI process error: " << ex.what() << std::endl;
   }
-- 
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