v0.1.1

CHANGELOG.md

@@ -1,3 +1,56 @@
+# 0.1.1 Third Pre-Release
+
+- Add mappings for common MIME types
+- Heavily improved resource utilization
+- Removed non-cached file backend 
+- Updated dockerfile to remove build files after build
+
+## Known Issues
+
+- Benchmark program does not include resource utilization
+
+## Benchmark Results
+
+Each benchmark makes 1000 requests requesting a 21.9Mb file using 
+100 users to the webserver running in a Docker container.
+
+The results from this benchmark vary quite a bit. About half the time,
+Apache can beat anthracite.
+
+```
+=====[ Anthracite Benchmarking Tool ]=====
+Requests     : 1000
+Users/Threads: 100
+
+
+====[ anthracite ]=====
+Average Response Time: 5.5128 seconds
+p995 Response Time   : 8.3105 seconds
+p99  Response Time   : 8.1796 seconds
+p90  Response Time   : 6.4393 seconds
+p75  Response Time   : 5.8587 seconds
+p50  Response Time   : 5.4393 seconds
+Total Response Time  : 5512.8397 seconds
+====[ nginx ]=====
+Average Response Time: 6.0201 seconds
+p995 Response Time   : 12.4648 seconds
+p99  Response Time   : 11.9635 seconds
+p90  Response Time   : 8.7204 seconds
+p75  Response Time   : 6.7331 seconds
+p50  Response Time   : 5.5341 seconds
+Total Response Time  : 6020.1369 seconds
+====[ apache ]=====
+Average Response Time: 5.9795 seconds
+p995 Response Time   : 12.8266 seconds
+p99  Response Time   : 11.6336 seconds
+p90  Response Time   : 7.1465 seconds
+p75  Response Time   : 6.4420 seconds
+p50  Response Time   : 5.8224 seconds
+Total Response Time  : 5979.5446 seconds
+==========
+Total Test Time      : 179.7469 seconds
+```
+
 # 0.1.0 Second Pre-Release 
 
 - Allowed multiple clients to be handled at once via multithreadding

Dockerfile

@@ -4,4 +4,9 @@ RUN apk add --no-cache build-base
 COPY ./src/ .
 RUN make build-release 
 
+FROM alpine 
+RUN apk add --no-cache build-base
+COPY --from=build-env /anthracite /anthracite 
+COPY --from=build-env /www /www 
+COPY --from=build-env /error_pages /error_pages 
 CMD ["/anthracite"] 

benchmark/benchmark.py

@@ -34,6 +34,7 @@ def make_request(request_number, server_name):
         response_times[server_name].append(response_time)
     else:
         print(f'Request {request_number}: Request failed with status code {response.status_code}')
+
 print('=====[ Anthracite Benchmarking Tool ]=====')
 print(f'Requests     : {num_requests}')
 print(f'Users/Threads: {num_users}\n\n')

src/Makefile

@@ -12,6 +12,9 @@ build-docker:
 run: build
 	./anthracite 8080
 
+run-test: build
+	./anthracite 8080 ./test_www
+
 debug: build
 	gdb --args ./anthracite 8080
 

src/backends/file_backend.cpp

@@ -4,28 +4,11 @@
 class file_backend : public backend {
 private:
   unordered_map<string, string> file_cache;
-  bool cache_enabled;
-
-  unique_ptr<http_response> handle_request_nocache(http_request& req) {
-     string filename = req.path() == "/" ? "index.html" : req.path();
-     filename = "./www/" + filename;
-     ifstream stream(filename);
-
-     int status = 200;
-     if (!stream.is_open()) {
-         status = 404;
-         filename = "./error_pages/404.html";
-         stream = ifstream(filename);
-     }
-
-     stringstream buffer;
-     buffer << stream.rdbuf();
-     return make_unique<http_response>(buffer.str(), status);
-  }
+  string file_dir;
 
   unique_ptr<http_response> handle_request_cache(http_request& req) {
-     string filename = req.path() == "/" ? "/index.html" : req.path();
-     filename = "./www" + filename;
+     string filename = req.path() == "/" ? "index.html" : req.path();
+     filename = file_dir + filename;
      auto file_info = file_cache.find(filename);
 
      int status = 200;
@@ -35,7 +18,7 @@ private:
          file_info = file_cache.find(filename);
      }
 
-     return make_unique<http_response>(file_info->second, status);
+     return make_unique<http_response>(file_info->second, filename, status);
   }
 
   void populate_cache_dir(string dir) {
@@ -55,18 +38,16 @@ private:
   }
 
   void populate_cache() {
-    populate_cache_dir("./www/");
+    populate_cache_dir(file_dir);
     populate_cache_dir("./error_pages/");
   }
 
 public:
-  file_backend(bool enable_cache) : cache_enabled(enable_cache) {
-    if(cache_enabled) {
+  file_backend(string dir = "./www") : file_dir(dir) {
     populate_cache();
   }
-  }
 
   unique_ptr<http_response> handle_request(http_request& req) override {
-    return cache_enabled ? handle_request_cache(req) : handle_request_nocache(req);
+    return handle_request_cache(req);
   }
 };

src/http.cpp

@@ -139,6 +139,27 @@ static unordered_map<int, string> const http_status_map = {
     { 420, "ENHANCE YOUR CALM" }
 };
 
+static unordered_map<std::string, std::string> const mime_types = {
+    { "html", "text/html" },
+    { "css", "text/css" },
+
+    { "js", "application/javascript" },
+    { "pdf", "application/pdf" },
+
+    { "ico", "image/x-icon" },
+    { "jpg", "image/jpeg" },
+    { "jpeg", "image/jpeg" },
+    { "png", "image/png" },
+    { "gif", "image/gif" },
+    { "bmp", "image/bmp" },
+
+    { "mp4", "video/mp4" },
+    { "avi", "video/x-msvideo" },
+    { "mkv", "video/x-matroska" },
+    { "mov", "video/quicktime" },
+    { "wmv", "video/x-ms-wmv" },
+};
+
 class name_value {
 private:
     string _name;
@@ -378,13 +399,15 @@ public:
 class http_response {
 private:
     int _status_code;
-    string _content;
+    string& _content;
+    string _filename;
     unordered_map<string, http_header> _headers; // kinda goofy, whatever
 
 public:
-    http_response(string content, int status_code = 200)
-        : _content(std::move(content))
+    http_response(string& content, string filename, int status_code = 200)
+        : _content(content)
         , _status_code(status_code)
+        , _filename(std::move(filename))
     {
     }
 
@@ -397,12 +420,22 @@ public:
         }
     }
 
-    string to_string()
+    string& content()
+    {
+        return _content;
+    }
+
+    string header_to_string()
     {
         string response = "";
         response += "HTTP/1.1 " + ::to_string(_status_code) + " " + http_status_map.find(_status_code)->second + "\r\n";
-
-        add_header(http_header("Content-Type", "text/html"), false);
+        string content_type = "text/html";
+        string file_extension = _filename.substr(_filename.rfind('.') + 1);
+        auto mime_type = mime_types.find(file_extension);
+        if (mime_type != mime_types.end()) {
+            content_type = mime_type->second;
+        }
+        add_header(http_header("Content-Type", content_type), false);
         add_header(http_header("Content-Length", ::to_string(_content.length())), false);
         add_header(http_header("Server", "Anthracite/0.0.1"), false);
 
@@ -411,8 +444,12 @@ public:
         }
 
         response += "\r\n";
-        response += _content;
 
         return response;
     }
+
+    string to_string()
+    {
+        return header_to_string() + _content;
+    }
 };

src/main.cpp

@@ -16,6 +16,7 @@ using namespace std;
 void log_request_and_response(http_request& req, unique_ptr<http_response>& resp);
 
 constexpr int default_port = 80;
+constexpr int max_worker_threads = 128;
 
 int active_threads = 0;
 mutex mtx;
@@ -26,15 +27,15 @@ void handle_client(anthracite_socket s, file_backend& fb)
     http_request req(s);
     unique_ptr<http_response> resp = fb.handle_request(req);
     log_request_and_response(req, resp);
-    s.send_message(resp->to_string());
+    string header = resp->header_to_string();
+    s.send_message(header);
+    s.send_message(resp->content());
     resp.reset();
     s.close_conn();
-
     {
         std::lock_guard<std::mutex> lock(mtx);
         active_threads--;
     }
-
     cv.notify_one();
 }
 
@@ -48,14 +49,14 @@ int main(int argc, char** argv)
 
     cout << "Initializing Anthracite" << endl;
     anthracite_socket s(port_number);
-    file_backend fb(true);
+    file_backend fb(argc > 2 ? argv[2] : "./www");
     cout << "Initialization Complete" << endl;
     cout << "Listening for HTTP connections on port " << port_number << endl;
 
-    for (;;) {
+    while (true) {
         s.wait_for_conn();
         std::unique_lock<std::mutex> lock(mtx);
-        cv.wait(lock, [] { return active_threads < 20; });
+        cv.wait(lock, [] { return active_threads < max_worker_threads; });
         active_threads++;
         thread(handle_client, s, ref(fb)).detach();
     }

src/socket.cpp

@@ -56,7 +56,7 @@ public:
         client_socket = -1;
     }
 
-    void send_message(string msg)
+    void send_message(string& msg)
     {
         if (client_socket == -1) {
             return;

src/test_www/index.html

@@ -0,0 +1,9 @@
+<head>
+  <title>Anthracite</title>
+  <link rel="icon" type="image/x-icon" href="/images/favicon.ico">
+</head>
+<center>
+  <h1>Anthracite is Running!</h1>
+  <p>If you are seeing this page, then Anthracite is configured correctly!</p>
+  <p>Add files to the "www" directory to begin serving your website.</p>
+</center>

src/test_www/test.css

@@ -0,0 +1,18 @@
+.cool-style {
+  background: linear-gradient(to right, #ef5350, #f48fb1, #7e57c2, #2196f3, #26c6da, #43a047, #eeff41, #f9a825, #ff5722);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+}
+
+.content {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: center;
+  align-items: center;
+}
+
+.content img {
+  max-width: 100%;
+  height: auto;
+  margin: 10px;
+}

src/test_www/test.html

@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Anthracite</title>
+  <link rel="icon" type="image/x-icon" href="/images/favicon_anim.ico">
+  <link rel="stylesheet" href="test.css">
+</head>
+<body>
+  <center>
+    <h1 class="cool-style">Test Page!</h1>
+    <h2>Dogs</h2>
+    <div class="content">
+      <img src="/images/tini.png" alt="A border collie" />
+      <img src="/images/lola.jpeg" alt="A border collie" />
+      <img src="/images/emma.bmp" alt="A corgi" />
+    </div>
+    <h2>Trains</h2>
+    <div>
+      <video controls>
+        <source src="videos/train_vid.mp4" />
+      </video>
+    </div>
+  </center>
+</body>
+</html>

src/www/index.html

@@ -1,3 +1,7 @@
+<head>
+  <title>Anthracite</title>
+  <link rel="icon" type="image/x-icon" href="/images/favicon.ico">
+</head>
 <center>
   <h1>Anthracite is Running!</h1>
   <p>If you are seeing this page, then Anthracite is configured correctly!</p>

src/www/test.html

@@ -1,3 +0,0 @@
-<center>
-  <h1>Test Page!</h1>
-</center>