initial

CMakeLists.txt

@@ -1,7 +1,22 @@
 cmake_minimum_required(VERSION 3.0)
 
-project(birdbadge)
+project(birdbadge
+    VERSION 0.0.1
+    DESCRIPTION "Bird Badge"
+    LANGUAGES CXX
+)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(FCGI fcgi)
 
 add_executable(birdbadge main.cpp)
 
+target_link_libraries(birdbadge
+    fcgi
+    fcgi++
+)
+
 install(TARGETS birdbadge RUNTIME DESTINATION bin)

main.cpp

@@ -1,6 +1,47 @@
 #include <iostream>
+#include <string>
+#include <fcgio.h>
+#include <fcgiapp.h>
 
-int main(int argc, char **argv) {
-    std::cout << "Hello, world!" << std::endl;
-    return 0;
+#include <unistd.h>
+
+constexpr static const char* GET("GET");
+
+constexpr static const char* REQUEST_METHOD("REQUEST_METHOD");
+constexpr static const char* SCRIPT_NAME("SCRIPT_NAME");
+
+constexpr static const char* status405("Status: 405 Method Not Allowed");
+constexpr static const char* contentTypeHtml("Content-type: text/html");
+
+constexpr static const char* headerEnd("\n\n");
+
+void handleRequest(FCGX_Request& request) {
+    fcgi_streambuf cin_fcgi_streambuf(request.in);
+    fcgi_streambuf cout_fcgi_streambuf(request.out);
+    fcgi_streambuf cerr_fcgi_streambuf(request.err);
+    std::ostream os{&cout_fcgi_streambuf};
+    std::ostream errs{&cerr_fcgi_streambuf};
+    std::istream is{&cin_fcgi_streambuf};
+
+    std::string requestMethod(FCGX_GetParam(REQUEST_METHOD, request.envp));
+    if (requestMethod != GET) {
+        os << status405;
+        return;
+    }
+
+    std::string scriptName{FCGX_GetParam(SCRIPT_NAME, request.envp)};
+    os << contentTypeHtml;
+    os << headerEnd;
+    os << scriptName << "\n";
+}
+
+int main() {
+    FCGX_Request request;
+
+    FCGX_Init();
+    FCGX_InitRequest(&request, 0, 0);
+
+    while (FCGX_Accept_r(&request) == 0) {
+        handleRequest(request);
+    }
 }