Year 2007.

[metaproxy-moved-to-github.git] / src / filter_frontend_net.cpp

diff --git a/src/filter_frontend_net.cpp b/src/filter_frontend_net.cpp
index c6340a5..fe5b3ac 100644 (file)
--- a/src/filter_frontend_net.cpp
+++ b/src/filter_frontend_net.cpp
@@ -1,19 +1,20 @@
-/* $Id: filter_frontend_net.cpp,v 1.16 2006-03-16 10:40:59 adam Exp $
-   Copyright (c) 2005-2006, Index Data.
+/* $Id: filter_frontend_net.cpp,v 1.23 2007-01-25 14:05:54 adam Exp $
+   Copyright (c) 2005-2007, Index Data.
 
-%LICENSE%
+   See the LICENSE file for details
  */
 
 #include "config.hpp"
 
+#include "util.hpp"
 #include "pipe.hpp"
 #include "filter.hpp"
 #include "package.hpp"
 #include "thread_pool_observer.hpp"
 #include "filter_frontend_net.hpp"
-#include <yaz++/z-assoc.h>
-#include <yaz++/pdu-assoc.h>
-#include <yaz++/socket-manager.h>
+#include <yazpp/z-assoc.h>
+#include <yazpp/pdu-assoc.h>
+#include <yazpp/socket-manager.h>
 #include <yaz/log.h>
 
 #include <iostream>
@@ -27,6 +28,7 @@ namespace metaproxy_1 {
             int m_no_threads;
             std::vector<std::string> m_ports;
             int m_listen_duration;
+            int m_session_timeout;
         };
     }
     class My_Timer_Thread : public yazpp_1::ISocketObserver {
@@ -80,7 +82,8 @@ namespace metaproxy_1 {
         ~ZAssocServer();
         ZAssocServer(yazpp_1::IPDU_Observable *PDU_Observable,
                      mp::ThreadPoolSocketObserver *m_thread_pool_observer,
-                     const mp::Package *package);
+                     const mp::Package *package,
+                     int timeout);
     private:
         yazpp_1::IPDU_Observer* sessionNotify(
             yazpp_1::IPDU_Observable *the_PDU_Observable,
@@ -93,6 +96,7 @@ namespace metaproxy_1 {
     private:
         mp::ThreadPoolSocketObserver *m_thread_pool_observer;
         const mp::Package *m_package;
+        int m_session_timeout;
     };
 }
 
@@ -106,11 +110,32 @@ void mp::ThreadPoolPackage::result()
     m_session->m_no_requests--;
 
     yazpp_1::GDU *gdu = &m_package->response();
+
     if (gdu->get())
     {
        int len;
        m_session->send_GDU(gdu->get(), &len);
     }
+    else if (!m_package->session().is_closed())
+    {
+        // no response package and yet the session is still open..
+        // means that request is unhandled..
+        yazpp_1::GDU *gdu_req = &m_package->request();
+        Z_GDU *z_gdu = gdu_req->get();
+        if (z_gdu && z_gdu->which == Z_GDU_Z3950)
+        {
+            // For Z39.50, response with a Close and shutdown
+            mp::odr odr;
+            int len;
+            Z_APDU *apdu_response = odr.create_close(
+                z_gdu->u.z3950, Z_Close_systemProblem, 
+                "unhandled Z39.50 request");
+
+            m_session->send_Z_PDU(apdu_response, &len);
+            m_package->session().close();
+        }
+    }
+
     if (m_session->m_no_requests == 0 && m_package->session().is_closed())
        delete m_session;
     delete this;
@@ -132,6 +157,10 @@ mp::ZAssocChild::ZAssocChild(yazpp_1::IPDU_Observable *PDU_Observable,
     m_no_requests = 0;
     m_delete_flag = false;
     m_package = package;
+    const char *peername = PDU_Observable->getpeername();
+    if (!peername)
+        peername = "unknown";
+    m_origin.set_tcpip_address(std::string(peername), m_session.id());
 }
 
 
@@ -184,9 +213,10 @@ void mp::ZAssocChild::connectNotify()
 }
 
 mp::ZAssocServer::ZAssocServer(yazpp_1::IPDU_Observable *PDU_Observable,
-                          mp::ThreadPoolSocketObserver *thread_pool_observer,
-                          const mp::Package *package)
-    :  Z_Assoc(PDU_Observable)
+                               mp::ThreadPoolSocketObserver *thread_pool_observer,
+                               const mp::Package *package,
+                               int timeout)
+    :  Z_Assoc(PDU_Observable), m_session_timeout(timeout)
 {
     m_thread_pool_observer = thread_pool_observer;
     m_package = package;
@@ -199,6 +229,7 @@ yazpp_1::IPDU_Observer *mp::ZAssocServer::sessionNotify(yazpp_1::IPDU_Observable
     mp::ZAssocChild *my =
        new mp::ZAssocChild(the_PDU_Observable, m_thread_pool_observer,
                              m_package);
+    my->timeout(m_session_timeout);
     return my;
 }
 
@@ -226,6 +257,7 @@ mp::filter::FrontendNet::FrontendNet() : m_p(new Rep)
 {
     m_p->m_no_threads = 5;
     m_p->m_listen_duration = 0;
+    m_p->m_session_timeout = 300; // 5 minutes
 }
 
 mp::filter::FrontendNet::~FrontendNet()
@@ -275,7 +307,8 @@ void mp::filter::FrontendNet::process(Package &package) const
        yazpp_1::PDU_Assoc *as = new yazpp_1::PDU_Assoc(&mySocketManager);
 
        // create ZAssoc with PDU Assoc
-       az[i] = new mp::ZAssocServer(as, &threadPool, &package);
+       az[i] = new mp::ZAssocServer(as, &threadPool, &package,
+                                     m_p->m_session_timeout);
        az[i]->server(m_p->m_ports[i].c_str());
     }
     while (mySocketManager.processEvent() > 0)
@@ -316,6 +349,15 @@ void mp::filter::FrontendNet::configure(const xmlNode * ptr)
                                                    + threads_str);
             m_p->m_no_threads = threads;
         }
+        else if (!strcmp((const char *) ptr->name, "timeout"))
+        {
+            std::string timeout_str = mp::xml::get_text(ptr);
+            int timeout = atoi(timeout_str.c_str());
+            if (timeout < 1)
+                throw mp::filter::FilterException("Bad value for timeout: " 
+                                                   + timeout_str);
+            m_p->m_session_timeout = timeout;
+        }
         else
         {
             throw mp::filter::FilterException("Bad element "