X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Ffilter_z3950_client.cpp;h=9cbea570340ec7d0b819a357a5c18221c6e1d2a1;hb=refs%2Ftags%2FMETAPROXY.1.0.13;hp=44d54503329a8dceca40c60fc21986a1be780f52;hpb=149e965b5ce014cd959c682fd411bd4bdd43f497;p=metaproxy-moved-to-github.git diff --git a/src/filter_z3950_client.cpp b/src/filter_z3950_client.cpp index 44d5450..9cbea57 100644 --- a/src/filter_z3950_client.cpp +++ b/src/filter_z3950_client.cpp @@ -1,12 +1,31 @@ -/* $Id: filter_z3950_client.cpp,v 1.18 2006-01-09 21:20:15 adam Exp $ - Copyright (c) 2005, Index Data. +/* $Id: filter_z3950_client.cpp,v 1.32 2008-02-20 15:07:52 adam Exp $ + Copyright (c) 2005-2007, Index Data. -%LICENSE% +This file is part of Metaproxy. + +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 Metaproxy; see the file LICENSE. If not, write to the +Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. + */ +/* $Id: filter_z3950_client.cpp,v 1.32 2008-02-20 15:07:52 adam Exp $ + Copyright (c) 2005-2007, Index Data. + + See the LICENSE file for details */ #include "config.hpp" -#include "xmlutil.hpp" #include "filter.hpp" #include "package.hpp" #include "util.hpp" @@ -25,13 +44,14 @@ #include #include -#include -#include -#include +#include +#include +#include -namespace yf = yp2::filter; +namespace mp = metaproxy_1; +namespace yf = mp::filter; -namespace yp2 { +namespace metaproxy_1 { namespace filter { class Z3950Client::Assoc : public yazpp_1::Z_Assoc{ friend class Rep; @@ -62,10 +82,13 @@ namespace yp2 { class Z3950Client::Rep { public: + // number of seconds to wait before we give up request int m_timeout_sec; + std::string m_default_target; + std::string m_force_target; boost::mutex m_mutex; boost::condition m_cond_session_ready; - std::map m_clients; + std::map m_clients; Z3950Client::Assoc *get_assoc(Package &package); void send_and_receive(Package &package, yf::Z3950Client::Assoc *c); @@ -74,7 +97,7 @@ namespace yp2 { } } -using namespace yp2; +using namespace mp; yf::Z3950Client::Assoc::Assoc(yazpp_1::SocketManager *socket_manager, yazpp_1::IPDU_Observable *PDU_Observable, @@ -105,11 +128,16 @@ void yf::Z3950Client::Assoc::failNotify() { m_waiting = false; - yp2::odr odr; + mp::odr odr; if (m_package) { - m_package->response() = odr.create_close(Z_Close_peerAbort, 0); + Z_GDU *gdu = m_package->request().get(); + Z_APDU *apdu = 0; + if (gdu && gdu->which == Z_GDU_Z3950) + apdu = gdu->u.z3950; + + m_package->response() = odr.create_close(apdu, Z_Close_peerAbort, 0); m_package->session().close(); } } @@ -121,14 +149,21 @@ void yf::Z3950Client::Assoc::timeoutNotify() { m_waiting = false; - yp2::odr odr; + mp::odr odr; if (m_package) { + Z_GDU *gdu = m_package->request().get(); + Z_APDU *apdu = 0; + if (gdu && gdu->which == Z_GDU_Z3950) + apdu = gdu->u.z3950; + if (m_connected) - m_package->response() = odr.create_close(Z_Close_lackOfActivity, 0); + m_package->response() = + odr.create_close(apdu, Z_Close_lackOfActivity, 0); else - m_package->response() = odr.create_close(Z_Close_peerAbort, 0); + m_package->response() = + odr.create_close(apdu, Z_Close_peerAbort, 0); m_package->session().close(); } @@ -164,7 +199,7 @@ yf::Z3950Client::Assoc *yf::Z3950Client::Rep::get_assoc(Package &package) // only one thread messes with the clients list at a time boost::mutex::scoped_lock lock(m_mutex); - std::map::iterator it; + std::map::iterator it; Z_GDU *gdu = package.request().get(); // only deal with Z39.50 @@ -180,6 +215,7 @@ yf::Z3950Client::Assoc *yf::Z3950Client::Rep::get_assoc(Package &package) while(true) { #if 0 + // double init .. NOT working yet if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which == Z_APDU_initRequest) { @@ -203,33 +239,67 @@ yf::Z3950Client::Assoc *yf::Z3950Client::Rep::get_assoc(Package &package) // check that it is init. If not, close if (apdu->which != Z_APDU_initRequest) { - yp2::odr odr; + mp::odr odr; - package.response() = odr.create_close(Z_Close_protocolError, + package.response() = odr.create_close(apdu, + Z_Close_protocolError, "First PDU was not an " "Initialize Request"); package.session().close(); return 0; } - // check virtual host - const char *vhost = - yaz_oi_get_string_oidval(&apdu->u.initRequest->otherInfo, - VAL_PROXY, - /* categoryValue */ 1, /* delete */ 1); - if (!vhost) + std::string target = m_force_target; + if (!target.length()) { - yp2::odr odr; - package.response() = odr.create_initResponse( - YAZ_BIB1_INIT_NEGOTIATION_OPTION_REQUIRED, - "Virtual host not given"); - - package.session().close(); - return 0; + target = m_default_target; + std::list vhosts; + mp::util::remove_vhost_otherinfo(&apdu->u.initRequest->otherInfo, + vhosts); + size_t no_vhosts = vhosts.size(); + if (no_vhosts == 1) + { + std::list::const_iterator v_it = vhosts.begin(); + target = *v_it; + } + else if (no_vhosts == 0) + { + if (!target.length()) + { + // no default target. So we don't know where to connect + mp::odr odr; + package.response() = odr.create_initResponse( + apdu, + YAZ_BIB1_INIT_NEGOTIATION_OPTION_REQUIRED, + "z3950_client: No virtal host given"); + + package.session().close(); + return 0; + } + } + else if (no_vhosts > 1) + { + mp::odr odr; + package.response() = odr.create_initResponse( + apdu, + YAZ_BIB1_COMBI_OF_SPECIFIED_DATABASES_UNSUPP, + "z3950_client: Can not cope with multiple vhosts"); + package.session().close(); + return 0; + } + } + std::list dblist; + std::string host; + mp::util::split_zurl(target, host, dblist); + + if (dblist.size()) + { + ; // z3950_client: Databases in vhost ignored } - + yazpp_1::SocketManager *sm = new yazpp_1::SocketManager; yazpp_1::PDU_Assoc *pdu_as = new yazpp_1::PDU_Assoc(sm); - yf::Z3950Client::Assoc *as = new yf::Z3950Client::Assoc(sm, pdu_as, vhost, + yf::Z3950Client::Assoc *as = new yf::Z3950Client::Assoc(sm, pdu_as, + host.c_str(), m_timeout_sec); m_clients[package.session()] = as; return as; @@ -252,7 +322,7 @@ void yf::Z3950Client::Rep::send_and_receive(Package &package, if (!c->m_connected) { c->client(c->m_host.c_str()); - c->timeout(1); + c->timeout(1); // so timeoutNotify gets called once per second while (!c->m_destroyed && c->m_waiting && c->m_socket_manager->processEvent() > 0) @@ -288,7 +358,7 @@ void yf::Z3950Client::Rep::send_and_receive(Package &package, void yf::Z3950Client::Rep::release_assoc(Package &package) { boost::mutex::scoped_lock lock(m_mutex); - std::map::iterator it; + std::map::iterator it; it = m_clients.find(package.session()); if (it != m_clients.end()) @@ -330,7 +400,7 @@ void yf::Z3950Client::process(Package &package) const m_p->release_assoc(package); } -void yf::Z3950Client::configure(const xmlNode *ptr) +void yf::Z3950Client::configure(const xmlNode *ptr, bool test_only) { for (ptr = ptr->children; ptr; ptr = ptr->next) { @@ -338,29 +408,32 @@ void yf::Z3950Client::configure(const xmlNode *ptr) continue; if (!strcmp((const char *) ptr->name, "timeout")) { - std::string timeout_str = yp2::xml::get_text(ptr); - int timeout_sec = atoi(timeout_str.c_str()); - if (timeout_sec < 2) - throw yp2::filter::FilterException("Bad timeout value " - + timeout_str); - m_p->m_timeout_sec = timeout_sec; + m_p->m_timeout_sec = mp::xml::get_int(ptr->children, 30); + } + else if (!strcmp((const char *) ptr->name, "default_target")) + { + m_p->m_default_target = mp::xml::get_text(ptr); + } + else if (!strcmp((const char *) ptr->name, "force_target")) + { + m_p->m_force_target = mp::xml::get_text(ptr); } else { - throw yp2::filter::FilterException("Bad element " + throw mp::filter::FilterException("Bad element " + std::string((const char *) ptr->name)); } } } -static yp2::filter::Base* filter_creator() +static mp::filter::Base* filter_creator() { - return new yp2::filter::Z3950Client; + return new mp::filter::Z3950Client; } extern "C" { - struct yp2_filter_struct yp2_filter_z3950_client = { + struct metaproxy_1_filter_struct metaproxy_1_filter_z3950_client = { 0, "z3950_client", filter_creator