Add a function to close all HTTP connections

[libs/net.git] / source / http / server.cpp

diff --git a/source/http/server.cpp b/source/http/server.cpp
index 60d37c8f139b2b3ee3b344eb2220cbf89487b896..667403e86788c9228e179e1f9677feb1552fb6cc 100644 (file)
--- a/source/http/server.cpp
+++ b/source/http/server.cpp
@@ -1,6 +1,8 @@
 #include <exception>
+#include <typeinfo>
 #include <msp/core/maputils.h>
 #include <msp/core/refptr.h>
+#include <msp/debug/demangle.h>
 #include <msp/net/inet.h>
 #include <msp/net/resolve.h>
 #include <msp/net/streamsocket.h>
@@ -15,13 +17,16 @@ using namespace std;
 namespace Msp {
 namespace Http {
 
+Server::Server():
+       sock(Net::INET6),
+       event_disp(0)
+{ }
+
 Server::Server(unsigned port):
-       sock(Net::INET),
+       sock(Net::INET6),
        event_disp(0)
 {
-       sock.signal_data_available.connect(sigc::mem_fun(this, &Server::data_available));
-       RefPtr<Net::SockAddr> addr = Net::resolve("*", format("%d", port));
-       sock.listen(*addr, 8);
+       listen(port);
 }
 
 // Avoid emitting sigc::signal destructor in files including server.h
@@ -29,6 +34,13 @@ Server::~Server()
 {
 }
 
+void Server::listen(unsigned port)
+{
+       RefPtr<Net::SockAddr> addr = Net::resolve("*", format("%d", port), Net::INET6);
+       sock.listen(*addr, 8);
+       sock.signal_data_available.connect(sigc::mem_fun(this, &Server::data_available));
+}
+
 unsigned Server::get_port() const
 {
        const Net::SockAddr &addr = sock.get_local_address();
@@ -66,6 +78,34 @@ void Server::submit_response(Response &resp)
                send_response(cl, *cl.response);
 }
 
+void Server::cancel_keepalive(Response &resp)
+{
+       get_client_by_response(resp).keepalive = false;
+}
+
+void Server::close_connections(const Time::TimeDelta &timeout)
+{
+       IO::Poller poller;
+       for(list<Client>::iterator i=clients.begin(); i!=clients.end(); ++i)
+       {
+               i->sock->shutdown(IO::M_WRITE);
+               poller.set_object(*i->sock, IO::P_INPUT);
+       }
+
+       while(!clients.empty() && poller.poll(timeout))
+       {
+               const vector<IO::Poller::PolledObject> &result = poller.get_result();
+               for(vector<IO::Poller::PolledObject>::const_iterator i=result.begin(); i!=result.end(); ++i)
+                       for(list<Client>::iterator j=clients.begin(); j!=clients.end(); ++j)
+                               if(j->sock.get()==i->object)
+                               {
+                                       poller.set_object(*j->sock, IO::P_NONE);
+                                       clients.erase(j);
+                                       break;
+                               }
+       }
+}
+
 void Server::data_available()
 {
        Net::StreamSocket *csock = sock.accept();
@@ -85,11 +125,19 @@ void Server::client_data_available(Client &cl)
                        break;
                }
 
-       char rbuf[4096];
-       unsigned len = cl.sock->read(rbuf, sizeof(rbuf));
-       if(cl.stale)
+       try
+       {
+               char rbuf[4096];
+               unsigned len = cl.sock->read(rbuf, sizeof(rbuf));
+               if(cl.stale)
+                       return;
+               cl.in_buf.append(rbuf, len);
+       }
+       catch(const exception &)
+       {
+               cl.stale = true;
                return;
-       cl.in_buf.append(rbuf, len);
+       }
 
        RefPtr<Response> response;
        if(!cl.request)
@@ -101,7 +149,7 @@ void Server::client_data_available(Client &cl)
                                cl.request = new Request(Request::parse(cl.in_buf));
 
                                string addr_str = cl.sock->get_peer_address().str();
-                               unsigned colon = addr_str.find(':');
+                               string::size_type colon = addr_str.find(':');
                                cl.request->set_header("-Client-Host", addr_str.substr(0, colon));
 
                                if(cl.request->get_method()!="GET" && cl.request->get_method()!="POST")
@@ -118,14 +166,15 @@ void Server::client_data_available(Client &cl)
                        catch(const exception &e)
                        {
                                response = new Response(BAD_REQUEST);
-                               response->add_content(e.what());
+                               response->add_content(format("An error occurred while parsing request headers:\ntype: %s\nwhat: %s",
+                                       Debug::demangle(typeid(e).name()), e.what()));
                        }
                        cl.in_buf = string();
                }
        }
        else
        {
-               len = cl.request->parse_content(cl.in_buf);
+               unsigned len = cl.request->parse_content(cl.in_buf);
                cl.in_buf.erase(0, len);
        }
 
@@ -159,7 +208,8 @@ void Server::client_data_available(Client &cl)
                        responses.erase(cl.response);
                        cl.response = 0;
                        response = new Response(INTERNAL_ERROR);
-                       response->add_content(e.what());
+                       response->add_content(format("An error occurred while processing the request:\ntype: %s\nwhat: %s",
+                               Debug::demangle(typeid(e).name()), e.what()));
                }
        }
 
@@ -171,7 +221,17 @@ void Server::send_response(Client &cl, Response &resp)
 {
        if(cl.keepalive)
                resp.set_header("Connection", "keep-alive");
-       cl.sock->write(resp.str());
+
+       try
+       {
+               cl.sock->write(resp.str());
+       }
+       catch(const exception &)
+       {
+               cl.stale = true;
+               return;
+       }
+
        cl.async = false;
        if(cl.keepalive)
        {