From 0f55f61ee745f38c312a53009b883feb5aa86b49 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Fri, 10 Apr 2020 16:58:49 +0200
Subject: Simplify http and https units

---
 response.cpp | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 53 insertions(+), 4 deletions(-)

(limited to 'response.cpp')

diff --git a/response.cpp b/response.cpp
index 6b7ae6a..70c93b1 100644
--- a/response.cpp
+++ b/response.cpp
@@ -7,6 +7,8 @@
 
 using namespace std::placeholders;
 
+namespace {
+
 std::string extend_index_html(std::string path)
 {
  if (path.size() && path.back() == '/')
@@ -14,8 +16,6 @@ std::string extend_index_html(std::string path)
  return path;
 }
 
-namespace {
-
 std::string GetServerParam(const std::string& key, Server& server)
 {
  // following are the supported fields:
@@ -73,10 +73,51 @@ void SetResponseHeader(const std::string& key, const std::string& value, respons
   throw std::runtime_error("Unsupported response field: "s + key);
 }
 
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if (pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
 } // anonymous namespace
 
-std::string generate_response(request_type& req, response_type& res, Server& server)
+response_type generate_response(request_type& req, Server& server)
 {
+ response_type res{http::status::ok, req.version()};
+ res.set(http::field::server, VersionString);
+ res.set(http::field::content_type, mime_type(extend_index_html(std::string(req.target()))));
+ res.keep_alive(req.keep_alive());
+
  std::string host{req["host"]};
  std::string target{req.target()};
  std::string plugin_name { server.GetConfig().GetPlugin(server.GetSocket(), host, target)};
@@ -86,6 +127,14 @@ std::string generate_response(request_type& req, response_type& res, Server& ser
  auto GetRequestParamFunction {std::function<std::string(const std::string& key)>(std::bind(GetRequestParam, _1, std::ref(req), std::ref(server)))};
  auto SetResponseHeaderFunction{std::function<void(const std::string& key, const std::string& value)>(std::bind(SetResponseHeader, _1, _2, std::ref(res)))};
  
- return plugin->generate_page(GetServerParamFunction, GetRequestParamFunction, SetResponseHeaderFunction);
+ std::string res_data { plugin->generate_page(GetServerParamFunction, GetRequestParamFunction, SetResponseHeaderFunction)};
+ if (req.method() == http::verb::head) {
+  res.content_length(res_data.size());
+ } else {
+  res.body() = res_data;
+  res.prepare_payload();
+ }
+
+ return res;
 }
 
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