X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Ffilter_frontend_net.cpp;h=2e2ada228645ba4bf1371bf8f92eaa870bc15bfa;hb=1fe3038c15740cf21a2eb7b00edad8d216384c2e;hp=ed9a4759025b9ed14b6482e13a5582bf8384ec63;hpb=57c1c4822f1de4d983c1aee3bc6059ad2600d991;p=metaproxy-moved-to-github.git

diff --git a/src/filter_frontend_net.cpp b/src/filter_frontend_net.cpp
index ed9a475..2e2ada2 100644
--- a/src/filter_frontend_net.cpp
+++ b/src/filter_frontend_net.cpp
@@ -1,270 +1,857 @@
+/* This file is part of Metaproxy.
+   Copyright (C) Index Data
 
+Metaproxy is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
 
 #include "config.hpp"
 
-#include "filter.hpp"
-#include "router.hpp"
-#include "package.hpp"
+#if HAVE_GETRLIMIT
+#include <sys/resource.h>
+#endif
+#include <sstream>
+#include <iomanip>
+#include <metaproxy/util.hpp>
+#include "pipe.hpp"
+#include <metaproxy/filter.hpp>
+#include <metaproxy/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 <yazpp/limit-connect.h>
+#include <yaz/timing.h>
 #include <yaz/log.h>
+#include <yaz/daemon.h>
+#include "gduutil.hpp"
+#include <signal.h>
 
 #include <iostream>
 
-using namespace yp2;
-
-class P2_Session : public yazpp_1::Z_Assoc {
-public:
-    ~P2_Session();
-    P2_Session(yazpp_1::IPDU_Observable *the_PDU_Observable,
-	       ThreadPoolSocketObserver *m_my_thread,
-	       const Package *package);
-    int m_no_requests;
-private:
-    yazpp_1::IPDU_Observer* sessionNotify(
-        yazpp_1::IPDU_Observable *the_PDU_Observable,
-        int fd);
-    void recv_GDU(Z_GDU *apdu, int len);
-    
-    void failNotify();
-    void timeoutNotify();
-    void connectNotify();
-private:
-    ThreadPoolSocketObserver *m_my_thread;
-    Session m_session;
-    Origin m_origin;
-    bool m_delete_flag;
-    const Package *m_package;
-};
-
-
-class ThreadPoolPackage : public IThreadPoolMsg {
-public:
-    ThreadPoolPackage(Package *package, P2_Session *ses) :
-	m_session(ses), m_package(package) { };
-    ~ThreadPoolPackage();
-    IThreadPoolMsg *handle();
-    void result();
-    
-private:
-    P2_Session *m_session;
-    Package *m_package;
-    
-};
-
-ThreadPoolPackage::~ThreadPoolPackage()
+namespace mp = metaproxy_1;
+namespace yf = metaproxy_1::filter;
+
+namespace metaproxy_1 {
+    namespace filter {
+        class FrontendNet::Port {
+            friend class Rep;
+            friend class FrontendNet;
+            std::string port;
+            std::string route;
+            std::string cert_fname;
+            int max_recv_bytes;
+        };
+        class FrontendNet::Rep {
+            friend class FrontendNet;
+
+            int m_no_threads;
+            int m_max_threads;
+            int m_stack_size;
+            std::vector<Port> m_ports;
+            int m_listen_duration;
+            int m_session_timeout;
+            int m_connect_max;
+            int m_http_req_max;
+            std::string m_msg_config;
+            std::string m_stat_req;
+            yazpp_1::SocketManager mySocketManager;
+            ZAssocServer **az;
+            yazpp_1::PDU_Assoc **pdu;
+            int m_duration_freq[22];
+            double m_duration_lim[22];
+            double m_duration_max;
+            double m_duration_min;
+            double m_duration_total;
+            int m_stop_signo;
+        public:
+            Rep();
+            ~Rep();
+        };
+        class FrontendNet::My_Timer_Thread : public yazpp_1::ISocketObserver {
+        private:
+            yazpp_1::ISocketObservable *m_obs;
+            Pipe m_pipe;
+            bool m_timeout;
+        public:
+            My_Timer_Thread(yazpp_1::ISocketObservable *obs, int duration);
+            void socketNotify(int event);
+            bool timeout();
+        };
+        class FrontendNet::ZAssocChild : public yazpp_1::Z_Assoc {
+        public:
+            ~ZAssocChild();
+            ZAssocChild(yazpp_1::IPDU_Observable *the_PDU_Observable,
+                        mp::ThreadPoolSocketObserver *m_thread_pool_observer,
+                        const mp::Package *package,
+                        Port *port,
+                        Rep *rep,
+                        yazpp_1::LimitConnect &limit_connect);
+            int m_no_requests;
+            Port *m_port;
+        private:
+            yazpp_1::IPDU_Observer* sessionNotify(
+                yazpp_1::IPDU_Observable *the_PDU_Observable,
+                int fd);
+            void recv_GDU(Z_GDU *apdu, int len);
+            void report(Z_HTTP_Request *hreq);
+            void failNotify();
+            void timeoutNotify();
+            void connectNotify();
+        private:
+            mp::ThreadPoolSocketObserver *m_thread_pool_observer;
+            mp::Session m_session;
+            mp::Origin m_origin;
+            bool m_delete_flag;
+            const mp::Package *m_package;
+            Rep *m_p;
+            yazpp_1::LimitConnect &m_limit_connect;
+        };
+        class FrontendNet::ThreadPoolPackage : public mp::IThreadPoolMsg {
+        public:
+            ThreadPoolPackage(mp::Package *package,
+                              yf::FrontendNet::ZAssocChild *ses,
+                              Rep *rep);
+            ~ThreadPoolPackage();
+            IThreadPoolMsg *handle();
+            void result(const char *t_info);
+            bool cleanup(void *info);
+        private:
+            yaz_timing_t timer;
+            ZAssocChild *m_assoc_child;
+            mp::Package *m_package;
+            Rep *m_p;
+        };
+        class FrontendNet::ZAssocServer : public yazpp_1::Z_Assoc {
+        public:
+            ~ZAssocServer();
+            ZAssocServer(yazpp_1::IPDU_Observable *PDU_Observable,
+                         FrontendNet::Port *port,
+                         Rep *rep);
+            void set_package(const mp::Package *package);
+            void set_thread_pool(ThreadPoolSocketObserver *observer);
+        private:
+            yazpp_1::IPDU_Observer* sessionNotify(
+                yazpp_1::IPDU_Observable *the_PDU_Observable,
+                int fd);
+            void recv_GDU(Z_GDU *apdu, int len);
+
+            void failNotify();
+            void timeoutNotify();
+            void connectNotify();
+        private:
+            mp::ThreadPoolSocketObserver *m_thread_pool_observer;
+            const mp::Package *m_package;
+            yazpp_1::LimitConnect limit_connect;
+            Port *m_port;
+            Rep *m_p;
+        };
+    }
+}
+
+yf::FrontendNet::ThreadPoolPackage::ThreadPoolPackage(mp::Package *package,
+                                                      ZAssocChild *ses,
+                                                      Rep *rep) :
+    m_assoc_child(ses), m_package(package), m_p(rep)
+{
+    timer = yaz_timing_create();
+}
+
+yf::FrontendNet::ThreadPoolPackage::~ThreadPoolPackage()
 {
+    yaz_timing_destroy(&timer); // timer may be NULL
     delete m_package;
 }
 
-void ThreadPoolPackage::result()
+bool yf::FrontendNet::ThreadPoolPackage::cleanup(void *info)
 {
-    m_session->m_no_requests--;
+    mp::Session *ses = (mp::Session *) info;
+
+    return *ses == m_package->session();
+}
+
+void yf::FrontendNet::ThreadPoolPackage::result(const char *t_info)
+{
+    m_assoc_child->m_no_requests--;
 
     yazpp_1::GDU *gdu = &m_package->response();
+
     if (gdu->get())
     {
 	int len;
-	m_session->send_GDU(gdu->get(), &len);
+	m_assoc_child->send_GDU(gdu->get(), &len);
+
+        yaz_timing_stop(timer);
+        double duration = yaz_timing_get_real(timer);
+
+        size_t ent = 0;
+        while (m_p->m_duration_lim[ent] != 0.0 && duration > m_p->m_duration_lim[ent])
+            ent++;
+        m_p->m_duration_freq[ent]++;
+
+        m_p->m_duration_total += duration;
+
+        if (m_p->m_duration_max < duration)
+            m_p->m_duration_max = duration;
+
+        if (m_p->m_duration_min == 0.0 || m_p->m_duration_min > duration)
+            m_p->m_duration_min = duration;
+
+        if (m_p->m_msg_config.length())
+        {
+            Z_GDU *z_gdu = gdu->get();
+
+            std::ostringstream os;
+            os  << m_p->m_msg_config << " "
+                << *m_package << " "
+                << std::fixed << std::setprecision (6) << duration << " ";
+
+            if (z_gdu)
+                os << *z_gdu;
+            else
+                os << "-";
+
+            yaz_log(YLOG_LOG, "%s %s", os.str().c_str(), t_info);
+        }
     }
+    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_assoc_child->send_Z_PDU(apdu_response, &len);
+        }
+        else if (z_gdu && z_gdu->which == Z_GDU_HTTP_Request)
+        {
+            // For HTTP, respond with Server Error
+            int len;
+            mp::odr odr;
+            Z_GDU *zgdu_res
+                = odr.create_HTTP_Response(m_package->session(),
+                                           z_gdu->u.HTTP_Request, 500);
+            m_assoc_child->send_GDU(zgdu_res, &len);
+        }
+        m_package->session().close();
+    }
+
+    if (m_assoc_child->m_no_requests == 0 && m_package->session().is_closed())
+    {
+        m_assoc_child->close();
+    }
+
+
+    delete this;
 }
 
-IThreadPoolMsg *ThreadPoolPackage::handle() 
+mp::IThreadPoolMsg *yf::FrontendNet::ThreadPoolPackage::handle()
 {
-    m_package->move();
+    m_package->move(m_assoc_child->m_port->route);
     return this;
 }
 
-
-P2_Session::P2_Session(yazpp_1::IPDU_Observable *the_PDU_Observable,
-		       ThreadPoolSocketObserver *my_thread_pool,
-		       const Package *package)
-    :  Z_Assoc(the_PDU_Observable)
+yf::FrontendNet::ZAssocChild::ZAssocChild(
+    yazpp_1::IPDU_Observable *PDU_Observable,
+    mp::ThreadPoolSocketObserver *my_thread_pool,
+    const mp::Package *package,
+    Port *port, Rep *rep,
+    yazpp_1::LimitConnect &limit_connect)
+    :  Z_Assoc(PDU_Observable), m_p(rep), m_limit_connect(limit_connect)
 {
-    m_my_thread = my_thread_pool;
+    m_thread_pool_observer = my_thread_pool;
     m_no_requests = 0;
     m_delete_flag = false;
     m_package = package;
+    m_port = port;
+    const char *peername = PDU_Observable->getpeername();
+    if (!peername)
+        peername = "unknown";
+    else
+    {
+        const char *cp = strchr(peername, ':');
+        if (cp)
+            peername = cp + 1;
+    }
+    std::string addr;
+    addr.append(peername);
+    addr.append(" ");
+    addr.append(port->port);
+    m_origin.set_tcpip_address(addr, m_session.id());
+    timeout(m_p->m_session_timeout);
 }
 
-
-yazpp_1::IPDU_Observer *P2_Session::sessionNotify(yazpp_1::IPDU_Observable
-						  *the_PDU_Observable, int fd)
+yazpp_1::IPDU_Observer *yf::FrontendNet::ZAssocChild::sessionNotify(
+    yazpp_1::IPDU_Observable *the_PDU_Observable, int fd)
 {
     return 0;
 }
 
-P2_Session::~P2_Session()
+yf::FrontendNet::ZAssocChild::~ZAssocChild()
 {
 }
 
-void P2_Session::recv_GDU(Z_GDU *z_pdu, int len)
+void yf::FrontendNet::ZAssocChild::report(Z_HTTP_Request *hreq)
+{
+    mp::odr o;
+
+    Z_GDU *gdu_res = o.create_HTTP_Response(m_session, hreq, 200);
+
+    Z_HTTP_Response *hres = gdu_res->u.HTTP_Response;
+
+    mp::wrbuf w;
+    size_t i;
+    int number_total = 0;
+
+    for (i = 0; m_p->m_duration_lim[i] != 0.0; i++)
+        number_total += m_p->m_duration_freq[i];
+    number_total += m_p->m_duration_freq[i];
+
+    wrbuf_puts(w, "<?xml version=\"1.0\"?>\n");
+    wrbuf_puts(w, "<frontend_net>\n");
+    wrbuf_printf(w, "  <responses frequency=\"%d\">\n", number_total);
+    for (i = 0; m_p->m_duration_lim[i] != 0.0; i++)
+    {
+        if (m_p->m_duration_freq[i] > 0)
+            wrbuf_printf(
+                w, "    <response duration_start=\"%f\" "
+                "duration_end=\"%f\" frequency=\"%d\"/>\n",
+                i > 0 ? m_p->m_duration_lim[i - 1] : 0.0,
+                m_p->m_duration_lim[i], m_p->m_duration_freq[i]);
+    }
+
+    if (m_p->m_duration_freq[i] > 0)
+        wrbuf_printf(
+            w, "    <response duration_start=\"%f\" frequency=\"%d\"/>\n",
+            m_p->m_duration_lim[i - 1], m_p->m_duration_freq[i]);
+
+    if (m_p->m_duration_max != 0.0)
+        wrbuf_printf(
+            w, "    <response duration_max=\"%f\"/>\n",
+            m_p->m_duration_max);
+    if (m_p->m_duration_min != 0.0)
+        wrbuf_printf(
+            w, "    <response duration_min=\"%f\"/>\n",
+            m_p->m_duration_min);
+    if (m_p->m_duration_total != 0.0)
+        wrbuf_printf(
+            w, "    <response duration_average=\"%f\"/>\n",
+            m_p->m_duration_total / number_total);
+
+    wrbuf_puts(w, " </responses>\n");
+
+    int thread_busy;
+    int thread_total;
+    m_thread_pool_observer->get_thread_info(thread_busy, thread_total);
+
+    wrbuf_printf(w, " <thread_info busy=\"%d\" total=\"%d\"/>\n",
+                 thread_busy, thread_total);
+
+    wrbuf_puts(w, "</frontend_net>\n");
+
+    hres->content_len = w.len();
+    hres->content_buf = (char *) w.buf();
+
+    int len;
+    send_GDU(gdu_res, &len);
+}
+
+void yf::FrontendNet::ZAssocChild::recv_GDU(Z_GDU *z_pdu, int len)
 {
     m_no_requests++;
 
-    Package *p = new Package(m_session, m_origin);
+    mp::Package *p = new mp::Package(m_session, m_origin);
+
+    if (z_pdu && z_pdu->which == Z_GDU_HTTP_Request)
+    {
+        Z_HTTP_Request *hreq = z_pdu->u.HTTP_Request;
+
+        const char *f = z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
+        if (f)
+            p->origin().set_tcpip_address(std::string(f), m_session.id());
+
+        if (m_p->m_stat_req.length()
+            && !strcmp(hreq->path, m_p->m_stat_req.c_str()))
+        {
+            report(hreq);
+            return;
+        }
+        std::string peername = p->origin().get_address();
+
+        m_limit_connect.add_connect(peername.c_str());
+        m_limit_connect.cleanup(false);
+        int con_sz = m_limit_connect.get_total(peername.c_str());
+
+        if (m_p->m_http_req_max && con_sz >= m_p->m_http_req_max)
+        {
+            mp::odr o;
+            Z_GDU *gdu_res = o.create_HTTP_Response(m_session, hreq, 500);
+            int len;
+            send_GDU(gdu_res, &len);
+            return;
+        }
+    }
 
-    ThreadPoolPackage *m = new ThreadPoolPackage(p, this);
-    p->copy_filter(*m_package);
+    ThreadPoolPackage *tp = new ThreadPoolPackage(p, this, m_p);
+    p->copy_route(*m_package);
     p->request() = yazpp_1::GDU(z_pdu);
-    m_my_thread->put(m);  
+
+    if (m_p->m_msg_config.length())
+    {
+        if (z_pdu)
+        {
+            std::ostringstream os;
+            os  << m_p->m_msg_config << " "
+                << *p << " "
+                << "0.000000" << " "
+                << *z_pdu;
+            yaz_log(YLOG_LOG, "%s", os.str().c_str());
+        }
+    }
+    m_thread_pool_observer->put(tp);
 }
 
-void P2_Session::failNotify()
+void yf::FrontendNet::ZAssocChild::failNotify()
 {
     // TODO: send Package to signal "close"
-    m_delete_flag = true;
-    if (m_no_requests == 0)
-        delete this;
-    
+    if (m_session.is_closed())
+    {
+        if (m_no_requests == 0)
+            delete this;
+	return;
+    }
+    m_no_requests++;
+
+    m_session.close();
+
+    mp::Package *p = new mp::Package(m_session, m_origin);
+
+    ThreadPoolPackage *tp = new ThreadPoolPackage(p, this, m_p);
+    p->copy_route(*m_package);
+    m_thread_pool_observer->cleanup(tp, &m_session);
+    m_thread_pool_observer->put(tp);
 }
 
-void P2_Session::timeoutNotify()
+void yf::FrontendNet::ZAssocChild::timeoutNotify()
 {
-    // TODO: send Package to signal "close"
-    m_delete_flag = true;
-    if (m_no_requests == 0)
-        delete this;
+    failNotify();
 }
 
-void P2_Session::connectNotify()
+void yf::FrontendNet::ZAssocChild::connectNotify()
 {
 
 }
 
-class P2_Server : public yazpp_1::Z_Assoc {
-public:
-    ~P2_Server();
-    P2_Server(yazpp_1::IPDU_Observable *the_PDU_Observable,
-              ThreadPoolSocketObserver *m_my_thread,
-	      const Package *package);
-private:
-    yazpp_1::IPDU_Observer* sessionNotify(
-        yazpp_1::IPDU_Observable *the_PDU_Observable,
-        int fd);
-    void recv_GDU(Z_GDU *apdu, int len);
-    
-    void failNotify();
-    void timeoutNotify();
-    void connectNotify();
-private:
-    ThreadPoolSocketObserver *m_my_thread;
-    const Package *m_package;
-};
+yf::FrontendNet::ZAssocServer::ZAssocServer(
+    yazpp_1::IPDU_Observable *PDU_Observable,
+    Port *port,
+    Rep *rep)
+    :
+    Z_Assoc(PDU_Observable), m_port(port), m_p(rep)
+{
+    m_package = 0;
+}
 
 
-P2_Server::P2_Server(yazpp_1::IPDU_Observable *the_PDU_Observable,
-                     ThreadPoolSocketObserver *my_thread,
-		     const Package *package)
-    :  Z_Assoc(the_PDU_Observable)
+void yf::FrontendNet::ZAssocServer::set_package(const mp::Package *package)
 {
-    m_my_thread = my_thread;
     m_package = package;
+}
 
+void yf::FrontendNet::ZAssocServer::set_thread_pool(
+    mp::ThreadPoolSocketObserver *observer)
+{
+    m_thread_pool_observer = observer;
 }
 
-yazpp_1::IPDU_Observer *P2_Server::sessionNotify(yazpp_1::IPDU_Observable
-						 *the_PDU_Observable, int fd)
+yazpp_1::IPDU_Observer *yf::FrontendNet::ZAssocServer::sessionNotify(
+    yazpp_1::IPDU_Observable *the_PDU_Observable, int fd)
 {
-    P2_Session *my = new P2_Session(the_PDU_Observable, m_my_thread,
-				    m_package);
+
+    const char *peername = the_PDU_Observable->getpeername();
+    if (peername)
+    {
+        limit_connect.add_connect(peername);
+        limit_connect.cleanup(false);
+        int con_sz = limit_connect.get_total(peername);
+        if (m_p->m_connect_max && con_sz > m_p->m_connect_max)
+            return 0;
+    }
+    ZAssocChild *my = new ZAssocChild(the_PDU_Observable,
+                                      m_thread_pool_observer,
+                                      m_package, m_port, m_p, limit_connect);
     return my;
 }
 
-P2_Server::~P2_Server()
+yf::FrontendNet::ZAssocServer::~ZAssocServer()
+{
+}
+
+void yf::FrontendNet::ZAssocServer::recv_GDU(Z_GDU *apdu, int len)
 {
 }
 
-void P2_Server::recv_GDU(Z_GDU *apdu, int len)
+void yf::FrontendNet::ZAssocServer::failNotify()
 {
 }
 
-void P2_Server::failNotify()
+void yf::FrontendNet::ZAssocServer::timeoutNotify()
 {
 }
 
-void P2_Server::timeoutNotify()
+void yf::FrontendNet::ZAssocServer::connectNotify()
 {
 }
 
-void P2_Server::connectNotify()
+yf::FrontendNet::FrontendNet() : m_p(new Rep)
 {
 }
 
-FilterFrontendNet::FilterFrontendNet()
+yf::FrontendNet::Rep::Rep()
 {
-    m_no_threads = 5;
-    m_listen_address = "@:9001";
+    m_max_threads = m_no_threads = 5;
+    m_stack_size = 0;
     m_listen_duration = 0;
+    m_session_timeout = 300; // 5 minutes
+    m_connect_max = 0;
+    az = 0;
+    size_t i;
+    for (i = 0; i < 22; i++)
+        m_duration_freq[i] = 0;
+    m_duration_lim[0] = 0.000001;
+    m_duration_lim[1] = 0.00001;
+    m_duration_lim[2] = 0.0001;
+    m_duration_lim[3] = 0.001;
+    m_duration_lim[4] = 0.01;
+    m_duration_lim[5] = 0.1;
+    m_duration_lim[6] = 0.2;
+    m_duration_lim[7] = 0.3;
+    m_duration_lim[8] = 0.5;
+    m_duration_lim[9] = 1.0;
+    m_duration_lim[10] = 1.5;
+    m_duration_lim[11] = 2.0;
+    m_duration_lim[12] = 3.0;
+    m_duration_lim[13] = 4.0;
+    m_duration_lim[14] = 5.0;
+    m_duration_lim[15] = 6.0;
+    m_duration_lim[16] = 8.0;
+    m_duration_lim[17] = 10.0;
+    m_duration_lim[18] = 15.0;
+    m_duration_lim[19] = 20.0;
+    m_duration_lim[20] = 30.0;
+    m_duration_lim[21] = 0.0;
+    m_duration_max = 0.0;
+    m_duration_min = 0.0;
+    m_duration_total = 0.0;
+    m_stop_signo = 0;
 }
 
-class My_Timer_Thread : public yazpp_1::ISocketObserver {
-private:
-    yazpp_1::ISocketObservable *m_obs;
-    int m_fd[2];
-    bool m_timeout;
-public:
-    My_Timer_Thread(yazpp_1::ISocketObservable *obs, int duration);
-    void socketNotify(int event);
-    bool timeout();
-};
+yf::FrontendNet::Rep::~Rep()
+{
+    if (az)
+    {
+        size_t i;
+        for (i = 0; i < m_ports.size(); i++)
+            delete az[i];
+        delete [] az;
+        delete [] pdu;
+    }
+    az = 0;
+}
 
-bool My_Timer_Thread::timeout()
+yf::FrontendNet::~FrontendNet()
+{
+}
+
+void yf::FrontendNet::stop(int signo) const
+{
+    m_p->m_stop_signo = signo;
+}
+
+void yf::FrontendNet::start() const
+{
+#if HAVE_GETRLIMIT
+    struct rlimit limit_data;
+    getrlimit(RLIMIT_NOFILE, &limit_data);
+    yaz_log(YLOG_LOG, "getrlimit NOFILE cur=%ld max=%ld",
+            (long) limit_data.rlim_cur, (long) limit_data.rlim_max);
+#endif
+}
+
+bool yf::FrontendNet::My_Timer_Thread::timeout()
 {
     return m_timeout;
 }
 
-My_Timer_Thread::My_Timer_Thread(yazpp_1::ISocketObservable *obs,
-				 int duration) : 
-    m_obs(obs), m_timeout(false)
+yf::FrontendNet::My_Timer_Thread::My_Timer_Thread(
+    yazpp_1::ISocketObservable *obs,
+    int duration) :
+    m_obs(obs), m_pipe(9123), m_timeout(false)
 {
-    pipe(m_fd);
-    obs->addObserver(m_fd[0], this);
+    obs->addObserver(m_pipe.read_fd(), this);
     obs->maskObserver(this, yazpp_1::SOCKET_OBSERVE_READ);
     obs->timeoutObserver(this, duration);
 }
 
-void My_Timer_Thread::socketNotify(int event)
+void yf::FrontendNet::My_Timer_Thread::socketNotify(int event)
 {
     m_timeout = true;
     m_obs->deleteObserver(this);
-    close(m_fd[0]);
-    close(m_fd[1]);
 }
 
-Package &FilterFrontendNet::process(Package &package) const {
-    yazpp_1::SocketManager mySocketManager;
-
+void yf::FrontendNet::process(mp::Package &package) const
+{
+    if (m_p->az == 0)
+        return;
+    size_t i;
     My_Timer_Thread *tt = 0;
-    if (m_listen_duration)
-	tt = new My_Timer_Thread(&mySocketManager, m_listen_duration);
 
-    yazpp_1::PDU_Assoc *my_PDU_Assoc =
-	new yazpp_1::PDU_Assoc(&mySocketManager);
-    
-    ThreadPoolSocketObserver threadPool(&mySocketManager, m_no_threads);
+    if (m_p->m_listen_duration)
+        tt = new My_Timer_Thread(&m_p->mySocketManager,
+                                 m_p->m_listen_duration);
 
-    P2_Server z(my_PDU_Assoc, &threadPool, &package);
-    z.server(m_listen_address.c_str());
+    ThreadPoolSocketObserver tp(&m_p->mySocketManager, m_p->m_no_threads,
+                                m_p->m_max_threads,
+                                m_p->m_stack_size);
 
-    while (mySocketManager.processEvent() > 0)
+    for (i = 0; i<m_p->m_ports.size(); i++)
     {
+	m_p->az[i]->set_package(&package);
+	m_p->az[i]->set_thread_pool(&tp);
+    }
+    while (m_p->mySocketManager.processEvent() > 0)
+    {
+        if (m_p->m_stop_signo == SIGTERM)
+        {
+            yaz_log(YLOG_LOG, "metaproxy received SIGTERM");
+            if (m_p->az)
+            {
+                size_t i;
+                for (i = 0; i < m_p->m_ports.size(); i++)
+                {
+                    m_p->pdu[i]->shutdown();
+                    m_p->az[i]->server("");
+                }
+                yaz_daemon_stop();
+            }
+            break; /* stop right away */
+        }
+#ifndef WIN32
+        if (m_p->m_stop_signo == SIGUSR1)
+        {    /* just stop listeners and cont till all sessions are done*/
+            yaz_log(YLOG_LOG, "metaproxy received SIGUSR1");
+            m_p->m_stop_signo = 0;
+            if (m_p->az)
+            {
+                size_t i;
+                for (i = 0; i < m_p->m_ports.size(); i++)
+                    m_p->az[i]->server("");
+                yaz_daemon_stop();
+            }
+        }
+#endif
+        int no = m_p->mySocketManager.getNumberOfObservers();
+        if (no <= 1)
+            break;
 	if (tt && tt->timeout())
 	    break;
     }
-    return package;
+    delete tt;
 }
 
-std::string &FilterFrontendNet::listen_address()
+void yf::FrontendNet::configure(const xmlNode * ptr, bool test_only,
+                                const char *path)
 {
-    return m_listen_address;
+    if (!ptr || !ptr->children)
+    {
+        throw yf::FilterException("No ports for Frontend");
+    }
+    std::vector<Port> ports;
+    for (ptr = ptr->children; ptr; ptr = ptr->next)
+    {
+        if (ptr->type != XML_ELEMENT_NODE)
+            continue;
+        if (!strcmp((const char *) ptr->name, "port"))
+        {
+            Port port;
+
+            const char *names[5] = {"route", "max_recv_bytes", "port",
+                                    "cert_fname", 0};
+            std::string values[4];
+
+            mp::xml::parse_attr(ptr, names, values);
+            port.route = values[0];
+            if (values[1].length() > 0)
+                port.max_recv_bytes = atoi(values[1].c_str());
+            else
+                port.max_recv_bytes = 0;
+            if (values[2].length() > 0)
+                port.port = values[2];
+            else
+                port.port = mp::xml::get_text(ptr);
+            port.cert_fname = values[3];
+            ports.push_back(port);
+        }
+        else if (!strcmp((const char *) ptr->name, "threads"))
+        {
+            std::string threads_str = mp::xml::get_text(ptr);
+            int threads = atoi(threads_str.c_str());
+            if (threads < 1)
+                throw yf::FilterException("Bad value for threads: "
+                                                   + threads_str);
+            m_p->m_no_threads = threads;
+        }
+        else if (!strcmp((const char *) ptr->name, "max-threads"))
+        {
+            std::string threads_str = mp::xml::get_text(ptr);
+            int threads = atoi(threads_str.c_str());
+            if (threads < 1)
+                throw yf::FilterException("Bad value for max-threads: "
+                                                   + threads_str);
+            m_p->m_max_threads = threads;
+        }
+        else if (!strcmp((const char *) ptr->name, "stack-size"))
+        {
+            std::string sz_str = mp::xml::get_text(ptr);
+            int sz = atoi(sz_str.c_str());
+            if (sz < 0)
+                throw yf::FilterException("Bad value for stack-size: "
+                                                   + sz_str);
+            m_p->m_stack_size = sz * 1024;
+        }
+        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 yf::FilterException("Bad value for timeout: "
+                                                   + timeout_str);
+            m_p->m_session_timeout = timeout;
+        }
+        else if (!strcmp((const char *) ptr->name, "connect-max"))
+        {
+            m_p->m_connect_max = mp::xml::get_int(ptr, 0);
+        }
+        else if (!strcmp((const char *) ptr->name, "http-req-max"))
+        {
+            m_p->m_http_req_max = mp::xml::get_int(ptr, 0);
+        }
+        else if (!strcmp((const char *) ptr->name, "message"))
+        {
+            m_p->m_msg_config = mp::xml::get_text(ptr);
+        }
+        else if (!strcmp((const char *) ptr->name, "stat-req"))
+        {
+            m_p->m_stat_req = mp::xml::get_text(ptr);
+        }
+        else
+        {
+            throw yf::FilterException("Bad element "
+                                      + std::string((const char *)
+                                                    ptr->name));
+        }
+    }
+    if (test_only)
+        return;
+    set_ports(ports);
 }
 
-int &FilterFrontendNet::listen_duration()
+void yf::FrontendNet::set_ports(std::vector<std::string> &ports)
 {
-    return m_listen_duration;
+    std::vector<Port> nports;
+    size_t i;
+
+    for (i = 0; i < ports.size(); i++)
+    {
+        Port nport;
+
+        nport.port = ports[i];
+
+        nports.push_back(nport);
+    }
+    set_ports(nports);
 }
 
+
+void yf::FrontendNet::set_ports(std::vector<Port> &ports)
+{
+    m_p->m_ports = ports;
+
+    m_p->az = new yf::FrontendNet::ZAssocServer *[m_p->m_ports.size()];
+    m_p->pdu = new yazpp_1::PDU_Assoc *[m_p->m_ports.size()];
+
+    // Create yf::FrontendNet::ZAssocServer for each port
+    size_t i;
+    for (i = 0; i < m_p->m_ports.size(); i++)
+        m_p->az[i] = 0;
+    for (i = 0; i < m_p->m_ports.size(); i++)
+    {
+        // create a PDU assoc object (one per yf::FrontendNet::ZAssocServer)
+        yazpp_1::PDU_Assoc *as = new yazpp_1::PDU_Assoc(&m_p->mySocketManager);
+
+        if (m_p->m_ports[i].cert_fname.length())
+            as->set_cert_fname(m_p->m_ports[i].cert_fname.c_str());
+        // create ZAssoc with PDU Assoc
+        m_p->pdu[i] = as;
+        m_p->az[i] = new yf::FrontendNet::ZAssocServer(
+            as, &m_p->m_ports[i], m_p.get());
+        if (m_p->az[i]->server(m_p->m_ports[i].port.c_str()))
+        {
+            throw yf::FilterException("Unable to bind to address "
+                                      + std::string(m_p->m_ports[i].port));
+        }
+        COMSTACK cs = as->get_comstack();
+
+        if (cs && m_p->m_ports[i].max_recv_bytes)
+            cs_set_max_recv_bytes(cs, m_p->m_ports[i].max_recv_bytes);
+
+    }
+}
+
+void yf::FrontendNet::set_listen_duration(int d)
+{
+    m_p->m_listen_duration = d;
+}
+
+static yf::Base* filter_creator()
+{
+    return new yf::FrontendNet;
+}
+
+extern "C" {
+    struct metaproxy_1_filter_struct metaproxy_1_filter_frontend_net = {
+        0,
+        "frontend_net",
+        filter_creator
+    };
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+