+ bool ok = true;
+
+ mp::odr odr_de(ODR_DECODE);
+ Z_SRW_PDU *sru_pdu_req = 0;
+
+ mp::odr odr_en(ODR_ENCODE);
+ Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
+
+ // determine database with the HTTP header information only
+ mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
+ std::map<std::string, const xmlNode *>::iterator idbexp;
+ idbexp = m_database_explain.find(sruinfo.database);
+
+ // assign explain config XML DOM node if database is known
+ const xmlNode *explainnode = 0;
+ if (idbexp != m_database_explain.end()){
+ explainnode = idbexp->second;
+ }
+ // just moving package if database is not known
+ else {
+ package.move();
+ return;
+ }
+
+
+ // decode SRU request
+ Z_SOAP *soap = 0;
+ char *charset = 0;
+ char *stylesheet = 0;
+
+ // filter acts as sink for non-valid SRU requests
+ if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
+ sru_pdu_res, soap,
+ charset, stylesheet)))
+ {
+ mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
+ sruinfo, explainnode);
+ mp_util::build_sru_response(package, odr_en, soap,
+ sru_pdu_res, charset, stylesheet);
+ package.session().close();
+ return;
+ }
+
+ // filter acts as sink for SRU explain requests
+ if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
+ {
+ Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
+ //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
+ // sruinfo, er_req);
+ mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
+ sruinfo, explainnode, er_req);
+ mp_util::build_sru_response(package, odr_en, soap,
+ sru_pdu_res, charset, stylesheet);
+ return;
+ }
+
+ // searchRetrieve
+ else if (sru_pdu_req
+ && sru_pdu_req->which == Z_SRW_searchRetrieve_request
+ && sru_pdu_req->u.request)
+ {
+ Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
+
+ sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
+
+ // checking that we have a query
+ ok = mp_util::check_sru_query_exists(package, odr_en,
+ sru_pdu_res, sr_req);
+
+ if (ok && z3950_init_request(package))
+ {
+ {
+ ok = z3950_search_request(package, odr_en,
+ sru_pdu_res, sr_req);
+
+ if (ok
+ && sru_pdu_res->u.response->numberOfRecords
+ && *(sru_pdu_res->u.response->numberOfRecords)
+ && sr_req->maximumRecords
+ && *(sr_req->maximumRecords))
+
+ ok = z3950_present_request(package, odr_en,
+ sru_pdu_res,
+ sr_req);
+ z3950_close_request(package);
+ }
+ }
+ }
+
+ // scan
+ else if (sru_pdu_req
+ && sru_pdu_req->which == Z_SRW_scan_request
+ && sru_pdu_req->u.scan_request)
+ {
+ Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
+
+ sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
+
+ // we do not do scan at the moment, therefore issuing a diagnostic
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.scan_response->diagnostics),
+ &(sru_pdu_res->u.scan_response->num_diagnostics),
+ 4, "scan");
+
+ // to be used when we do scan
+ if (false && z3950_init_request(package))
+ {
+ z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
+ z3950_close_request(package);
+ }
+ }
+ else
+ {
+ //std::cout << "SRU OPERATION NOT SUPPORTED \n";
+ sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
+
+ // TODO: make nice diagnostic return package
+ package.session().close();
+ return;
+ }
+
+ // build and send SRU response
+ mp_util::build_sru_response(package, odr_en, soap,
+ sru_pdu_res, charset, stylesheet);
+ return;
+}
+
+
+
+bool
+yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
+ const std::string &database) const
+{
+ // prepare Z3950 package
+ Package z3950_package(package.session(), package.origin());
+ z3950_package.copy_filter(package);
+
+ // set initRequest APDU
+ mp::odr odr_en(ODR_ENCODE);
+ Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
+ Z_InitRequest *init_req = apdu->u.initRequest;
+ //TODO: add user name in apdu
+ //TODO: add user passwd in apdu
+ //init_req->idAuthentication = org_init->idAuthentication;
+ //init_req->implementationId = "IDxyz";
+ //init_req->implementationName = "NAMExyz";
+ //init_req->implementationVersion = "VERSIONxyz";
+
+ ODR_MASK_SET(init_req->options, Z_Options_search);
+ ODR_MASK_SET(init_req->options, Z_Options_present);
+ ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
+ ODR_MASK_SET(init_req->options, Z_Options_scan);
+
+ ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
+ ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
+ ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
+
+ z3950_package.request() = apdu;
+
+ // send Z3950 package
+ z3950_package.move();
+
+ // dead Z3950 backend detection
+ if (z3950_package.session().is_closed()){
+ package.session().close();
+ return false;
+ }
+
+ // check successful initResponse
+ Z_GDU *z3950_gdu = z3950_package.response().get();
+
+ if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
+ && z3950_gdu->u.z3950->which == Z_APDU_initResponse)
+ return true;
+
+ return false;
+}
+
+bool
+yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
+{
+ // close SRU package
+ package.session().close();
+
+ // prepare and close Z3950 package
+ Package z3950_package(package.session(), package.origin());
+ z3950_package.copy_filter(package);
+ z3950_package.session().close();
+
+ // set close APDU
+ //mp::odr odr_en(ODR_ENCODE);
+ //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
+ //z3950_package.request() = apdu;
+
+ z3950_package.move();
+
+ // check successful close response
+ //Z_GDU *z3950_gdu = z3950_package.response().get();
+ //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
+ // && z3950_gdu->u.z3950->which == Z_APDU_close)
+ // return true;
+
+ if (z3950_package.session().is_closed()){
+ return true;
+ }
+ return false;
+}
+
+bool
+yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SRW_searchRetrieveRequest
+ const *sr_req) const
+{
+
+ assert(sru_pdu_res->u.response);
+
+ Package z3950_package(package.session(), package.origin());
+ z3950_package.copy_filter(package);
+
+ //add stuff in z3950 apdu
+ Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
+ Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
+
+ // z3950'fy database
+ z_searchRequest->num_databaseNames = 1;
+ z_searchRequest->databaseNames = (char**)
+ odr_malloc(odr_en, sizeof(char *));
+
+ if (sr_req->database)
+ z_searchRequest->databaseNames[0]
+ = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
+ else
+ z_searchRequest->databaseNames[0]
+ = odr_strdup(odr_en, "Default");
+
+
+ // z3950'fy query
+ Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
+ z_searchRequest->query = z_query;