Work on session_shared - scan support, better error handling, Z39.50

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

diff --git a/src/ex_filter_frontend_net.cpp b/src/ex_filter_frontend_net.cpp
index 4478afb..0b856e3 100644 (file)
--- a/src/ex_filter_frontend_net.cpp
+++ b/src/ex_filter_frontend_net.cpp
@@ -1,36 +1,55 @@
+/* $Id: ex_filter_frontend_net.cpp,v 1.27 2006-06-10 14:29:11 adam Exp $
+   Copyright (c) 2005-2006, Index Data.
+
+   See the LICENSE file for details
+ */
+
+#include "config.hpp"
 
 #include <cstdlib>
 #include <iostream>
 #include <stdexcept>
 
-#include "config.hpp"
+#include <boost/program_options.hpp>
+namespace po = boost::program_options;
+
 
+#include "util.hpp"
 #include "filter_frontend_net.hpp"
+#include "filter_z3950_client.hpp"
+#include "filter_virt_db.hpp"
+#include "filter_session_shared.hpp"
+#include "filter_log.hpp"
 
-#include "router.hpp"
+#include "router_chain.hpp"
 #include "session.hpp"
 #include "package.hpp"
 
-class FilterInit: public yp2::Filter {
-public:
-    void process(yp2::Package & package) const {
+namespace mp = metaproxy_1;
 
+class HTTPFilter: public mp::filter::Base {
+public:
+    void process(mp::Package & package) const {
         if (package.session().is_closed())
         {
             // std::cout << "Got Close.\n";
         }
-       
+        
         Z_GDU *gdu = package.request().get();
-        if (gdu)
+        if (gdu && gdu->which == Z_GDU_HTTP_Request)
         {
-            // std::cout << "Got PDU. Sending init response\n";
-            ODR odr = odr_createmem(ODR_ENCODE);
-            Z_APDU *apdu = zget_APDU(odr, Z_APDU_initResponse);
+            mp::odr odr;
+            Z_GDU *gdu = z_get_HTTP_Response(odr, 200);
+            Z_HTTP_Response *http_res = gdu->u.HTTP_Response;
+            
+            z_HTTP_header_add(odr, &http_res->headers,
+                              "Content-Type", "text/plain");
             
-            apdu->u.initResponse->implementationName = "YP2/YAZ";
+            http_res->content_buf = 
+                odr_strdup(odr, "Welcome to YP2");
+            http_res->content_len = strlen(http_res->content_buf);
             
-            package.response() = apdu;
-            odr_destroy(odr);
+            package.response() = gdu;
         }
         return package.move();
     };
@@ -40,22 +59,77 @@ int main(int argc, char **argv)
 {
     try 
     {
+        po::options_description desc("Allowed options");
+        desc.add_options()
+            ("help", "produce help message")
+            ("duration", po::value<int>(),
+             "number of seconds for server to exist")
+            ("port", po::value< std::vector<std::string> >(), "listener port")
+            ;
+
+        po::positional_options_description p;
+        p.add("port", -1);
+
+        po::variables_map vm;        
+        po::store(po::command_line_parser(argc, argv).
+                  options(desc).positional(p).run(), vm);
+        po::notify(vm);    
+
+        if (vm.count("help")) {
+            std::cout << desc << "\n";
+            return 1;
+        }
+
+        if (vm.count("port"))
         {
-           yp2::RouterChain router;
+            std::vector<std::string> ports = 
+                vm["port"].as< std::vector<std::string> >();
+
+            for (size_t i = 0; i<ports.size(); i++)
+                std::cout << "port " << i << " " << ports[i] << "\n";
+
+           mp::RouterChain router;
+
+            // put frontend filter in router
+            mp::filter::FrontendNet filter_front;
+            filter_front.ports() = ports;
+
+            // 0=no time, >0 timeout in seconds
+            if (vm.count("duration")) {
+                filter_front.listen_duration() = vm["duration"].as<int>();
+            }
+           router.append(filter_front);
+
+            // put log filter in router
+            mp::filter::Log filter_log_front("FRONT");
+            router.append(filter_log_front);
+
+            // put Virt db filter in router
+            mp::filter::Virt_db filter_virt_db;
+            filter_virt_db.add_map_db2target("gils", "indexdata.dk/gils",
+                                            "");
+            filter_virt_db.add_map_db2target("Default", "localhost:9999/Default",
+                                            "");
+            filter_virt_db.add_map_db2target("2", "localhost:9999/Slow", "");
+           router.append(filter_virt_db);
+
+            mp::filter::SessionShared filter_session_shared;
+            //router.append(filter_session_shared);
+
+            mp::filter::Log filter_log_back("BACK");
+            router.append(filter_log_back);
 
-            // put in frontend first
-            yp2::FilterFrontendNet filter_front;
-            filter_front.listen_address() = "tcp:@:9999";
-            //filter_front.listen_duration() = 1;  // listen a short time only
-           router.rule(filter_front);
+            // put HTTP backend filter in router
+            HTTPFilter filter_init;
+           router.append(filter_init);
 
-            // put in a backend
-            FilterInit filter_init;
-           router.rule(filter_init);
+            // put Z39.50 backend filter in router
+            mp::filter::Z3950Client z3950_client;
+           router.append(z3950_client);
 
-            yp2::Session session;
-            yp2::Origin origin;
-           yp2::Package pack(session, origin);
+            mp::Session session;
+            mp::Origin origin;
+           mp::Package pack(session, origin);
            
            pack.router(router).move(); 
         }
@@ -64,12 +138,14 @@ int main(int argc, char **argv)
         std::cerr << "unknown exception\n";
         std::exit(1);
     }
+    std::exit(0);
 }
 
 /*
  * Local variables:
  * c-basic-offset: 4
  * indent-tabs-mode: nil
+ * c-file-style: "stroustrup"
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab
  */