From a87bf7d5c0ec0a99ef07f6f79c41ef33108c6ecb Mon Sep 17 00:00:00 2001
From: Marc Cromme <marc@indexdata.dk>
Date: Fri, 5 Jan 2007 12:26:50 +0000
Subject: [PATCH] more work on zeerex explain filter, to be continued

---
 src/filter_zeerex_explain.cpp |    9 +--------
 src/sru_util.cpp              |   40 ++++++++++++++++++++++++++++++++++++++--
 src/sru_util.hpp              |   20 +++++++++++++++++++-
 3 files changed, 58 insertions(+), 11 deletions(-)

diff --git a/src/filter_zeerex_explain.cpp b/src/filter_zeerex_explain.cpp
index a721413..eae42cd 100644
--- a/src/filter_zeerex_explain.cpp
+++ b/src/filter_zeerex_explain.cpp
@@ -1,4 +1,4 @@
-/* $Id: filter_zeerex_explain.cpp,v 1.1 2006-12-28 14:59:44 marc Exp $
+/* $Id: filter_zeerex_explain.cpp,v 1.2 2007-01-05 12:26:50 marc Exp $
    Copyright (c) 2005-2006, Index Data.
 
    See the LICENSE file for details
@@ -99,13 +99,6 @@ void yf::ZeeRexExplain::Impl::process(mp::Package &package) const
         return;
     }
     
-    
-    // SRU request package translation to Z3950 package
-    //if (sru_pdu_req)
-    //    std::cout << *sru_pdu_req << "\n";
-    //else
-    //    std::cout << "SRU empty\n";
-    
 
     if (sru_pdu_req->which != Z_SRW_explain_request){
     // Let pass all other SRU actions
diff --git a/src/sru_util.cpp b/src/sru_util.cpp
index 881a86c..4b46ac9 100644
--- a/src/sru_util.cpp
+++ b/src/sru_util.cpp
@@ -1,4 +1,4 @@
-/* $Id: sru_util.cpp,v 1.3 2006-12-28 13:26:06 marc Exp $
+/* $Id: sru_util.cpp,v 1.4 2007-01-05 12:26:50 marc Exp $
    Copyright (c) 2005-2006, Index Data.
 
    See the LICENSE file for details
@@ -35,6 +35,42 @@ bool mp_util::build_sru_debug_package(mp::Package &package)
     return false;
 }
 
+void mp_util::get_sru_server_info(mp::Package &package, 
+                                   Z_SRW_explainRequest 
+                                   const *er_req) 
+{
+
+    SRUServerInfo sruinfo;
+
+    // getting database info
+    std::string database("Default");
+    if (er_req && er_req->database)
+        database = er_req->database;
+
+    // getting host and port info
+    std::string host = package.origin().listen_host();
+    std::string port = mp_util::to_string(package.origin().listen_port());
+
+    // overwriting host and port info if set from HTTP Host header
+    Z_GDU *zgdu_req = package.request().get();
+    if  (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
+    {
+        Z_HTTP_Request* http_req =  zgdu_req->u.HTTP_Request;
+        if (http_req)
+        {
+            std::string http_host_address
+                = mp_util::http_header_value(http_req->headers, "Host");
+
+            std::string::size_type i = http_host_address.rfind(":");
+            if (i != std::string::npos)
+            {
+                host.assign(http_host_address, 0, i);
+                port.assign(http_host_address, i + 1, std::string::npos);
+            }
+        }
+    }
+}
+
 
 bool mp_util::build_simple_explain(mp::Package &package, 
                                    mp::odr &odr_en,
@@ -78,7 +114,7 @@ bool mp_util::build_simple_explain(mp::Package &package,
     // building SRU explain record
     std::string explain_xml 
         = mp_util::to_string(
-            "<explain>\n"
+            "<explain  xmlns=\"http://explain.z3950.org/dtd/2.0/\">\n"
             "  <serverInfo protocol='SRU'>\n"
             "    <host>")
         + host
diff --git a/src/sru_util.hpp b/src/sru_util.hpp
index da8598d..323ea4a 100644
--- a/src/sru_util.hpp
+++ b/src/sru_util.hpp
@@ -1,4 +1,4 @@
-/* $Id: sru_util.hpp,v 1.4 2006-12-28 13:26:06 marc Exp $
+/* $Id: sru_util.hpp,v 1.5 2007-01-05 12:26:50 marc Exp $
 -   Copyright (c) 2005-2006, Index Data.
 
    See the LICENSE file for details
@@ -35,6 +35,10 @@ namespace metaproxy_1 {
 
         bool build_sru_debug_package(metaproxy_1::Package &package);
 
+        void get_sru_server_info(metaproxy_1::Package &package, 
+                                 Z_SRW_explainRequest 
+                                 const *er_req);
+        
         bool build_simple_explain(metaproxy_1::Package &package, 
                                   metaproxy_1::odr &odr_en,
                                   Z_SRW_PDU *sru_pdu_res,
@@ -63,6 +67,20 @@ namespace metaproxy_1 {
         
         Z_ElementSetNames * build_esn_from_schema(metaproxy_1::odr &odr_en, 
                                                   const char *schema);
+
+        class SRUServerInfo
+        {
+        public:
+            SRUServerInfo ()
+                : database("Default")
+                {}
+        public:
+            std::string database;
+            std::string host;
+            std::string port;
+        };
+        
+        
         
 
 //         class SRU 
-- 
1.7.10.4