/* This example illustrates the use of the HTTP extension to the server object from the dlib C++ Library. It creates a server that always responds with a simple HTML form. To view the page this program displays you should go to http://localhost:5000 */ #include #include #include #include "dlib/server.h" using namespace dlib; using namespace std; class web_server : public server::http_1a_c { void on_request ( const std::string& path, std::string& result, const map_type& queries, const map_type& cookies, queue_type& new_cookies, const map_type& incoming_headers, map_type& response_headers, const std::string& foreign_ip, const std::string& local_ip, unsigned short foreign_port, unsigned short local_port ) { try { ostringstream sout; // We are going to send back a page that contains an HTML form with two text input fields. // One field called name. The HTML form uses the post method but could also use the get // method (just change method='post' to method='get'). sout << " " << ""; sout << "
path = " << path << endl; sout << "
foreign_ip = " << foreign_ip << endl; sout << "
foreign_port = " << foreign_port << endl; sout << "
local_ip = " << local_ip << endl; sout << "
local_port = " << local_port << endl; // If this request is the result of the user submitting the form then echo back // the submission. if (path == "/form_handler") { sout << "

Stuff from the query string

" << endl; sout << "
user = " << queries["user"] << endl; sout << "
pass = " << queries["pass"] << endl; // save these form submissions as cookies. string cookie; cookie = "user=" + queries["user"]; new_cookies.enqueue(cookie); cookie = "pass=" + queries["pass"]; new_cookies.enqueue(cookie); } // Echo any cookies back to the client browser sout << "

Cookies we got back from the server

"; cookies.reset(); while (cookies.move_next()) { sout << "
" << cookies.element().key() << " = " << cookies.element().value() << endl; } sout << "

"; sout << "

HTTP Headers we sent to the server

"; // Echo out all the HTTP headers we received from the client web browser incoming_headers.reset(); while (incoming_headers.move_next()) { sout << "
" << incoming_headers.element().key() << ": " << incoming_headers.element().value() << endl; } sout << " "; result = sout.str(); } catch (exception& e) { cout << e.what() << endl; } } }; // create an instance of our web server web_server our_web_server; void thread() { cout << "Press enter to end this program" << endl; cin.get(); // this will cause the server to shut down which will in turn cause // our_web_server.start() to unblock and thus the main() function will terminate. our_web_server.clear(); } int main() { try { // create a thread that will listen for the user to end this program thread_function t(thread); // make it listen on port 5000 our_web_server.set_listening_port(5000); our_web_server.start(); } catch (exception& e) { cout << e.what() << endl; } }