22 #include <metaproxy/package.hpp>
23 #include <metaproxy/util.hpp>
30 #include <boost/thread/mutex.hpp>
31 #include <boost/thread/condition.hpp>
32 #include <boost/thread/xtime.hpp>
36 #include <yaz/otherinfo.h>
37 #include <yaz/diagbib1.h>
38 #include <yaz/oid_db.h>
39 #include <yaz/charneg.h>
41 #include <yazpp/socket-manager.h>
42 #include <yazpp/pdu-assoc.h>
43 #include <yazpp/z-assoc.h>
46 namespace yf = mp::filter;
52 Assoc(yazpp_1::SocketManager *socket_manager,
53 yazpp_1::IPDU_Observable *PDU_Observable,
54 std::string host,
int connect_timeout,
55 int init_timeout,
int max_sockets_timeout,
62 void fixup_nsd(ODR odr, Z_Records *records);
63 void fixup_nsd(ODR odr, Z_DefaultDiagFormat *nsd);
64 void fixup_init(ODR odr, Z_InitResponse *initrs);
66 yazpp_1::IPDU_Observable *the_PDU_Observable,
105 yf::Z3950Client::Assoc *c);
113 yf::Z3950Client::Assoc::Assoc(yazpp_1::SocketManager *socket_manager,
114 yazpp_1::IPDU_Observable *PDU_Observable,
117 int init_timeout,
int max_sockets_timeout,
119 : Z_Assoc(PDU_Observable),
120 m_socket_manager(socket_manager), m_PDU_Observable(PDU_Observable),
121 m_package(0), m_in_use(true), m_waiting(false),
122 m_destroyed(false), m_connected(0), m_has_closed(false),
125 m_connect_time_max(connect_timeout),
126 m_init_time_max(init_timeout),
127 m_max_sockets_timeout_sec(max_sockets_timeout),
128 m_general_time_max(general_timeout),
134 yf::Z3950Client::Assoc::~Assoc()
139 void yf::Z3950Client::Assoc::connectNotify()
146 void yf::Z3950Client::Assoc::failNotify()
154 Z_GDU *gdu = m_package->request().get();
156 if (gdu && gdu->which == Z_GDU_Z3950)
159 m_package->response() = odr.create_close(apdu, Z_Close_peerAbort, 0);
160 m_package->session().close();
164 void yf::Z3950Client::Assoc::timeoutNotify()
167 if ((m_connected == 0 && m_time_elapsed >= m_connect_time_max)
168 || (m_connected == 1 && m_time_elapsed >= m_init_time_max)
169 || (m_connected >= 2 && m_time_elapsed >= m_general_time_max))
177 Z_GDU *gdu = m_package->request().get();
179 if (gdu && gdu->which == Z_GDU_Z3950)
182 if (m_connected == 2)
183 m_package->response() =
184 odr.create_close(apdu, Z_Close_lackOfActivity, 0);
186 m_package->response() =
187 odr.create_close(apdu, Z_Close_peerAbort, 0);
189 m_package->session().close();
194 void yf::Z3950Client::Assoc::fixup_nsd(ODR odr, Z_DefaultDiagFormat *nsd)
200 const char *v2Addinfo = nsd->u.v2Addinfo;
202 if (v2Addinfo && *v2Addinfo)
204 addinfo.assign(nsd->u.v2Addinfo);
207 addinfo +=
"(backend=" + m_host +
")";
208 nsd->u.v2Addinfo = odr_strdup(odr, addinfo.c_str());
211 void yf::Z3950Client::Assoc::fixup_nsd(ODR odr, Z_Records *records)
213 if (records && records->which == Z_Records_NSD)
215 fixup_nsd(odr, records->u.nonSurrogateDiagnostic);
217 if (records && records->which == Z_Records_multipleNSD)
219 Z_DiagRecs *drecs = records->u.multipleNonSurDiagnostics;
221 for (i = 0; i < drecs->num_diagRecs; i++)
223 Z_DiagRec *dr = drecs->diagRecs[i];
225 if (dr->which == Z_DiagRec_defaultFormat)
226 fixup_nsd(odr, dr->u.defaultFormat);
231 void yf::Z3950Client::Assoc::fixup_init(ODR odr, Z_InitResponse *initrs)
233 Z_External *uif = initrs->userInformationField;
235 if (uif && uif->which == Z_External_userInfo1)
237 Z_OtherInformation *ui = uif->u.userInfo1;
239 for (i = 0; i < ui->num_elements; i++)
241 Z_OtherInformationUnit *unit = ui->list[i];
242 if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
243 unit->information.externallyDefinedInfo &&
244 unit->information.externallyDefinedInfo->which ==
247 Z_DiagnosticFormat *diag =
248 unit->information.externallyDefinedInfo->u.diag1;
250 for (j = 0; j < diag->num; j++)
252 Z_DiagnosticFormat_s *ds = diag->elements[j];
253 if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
255 Z_DefaultDiagFormat *r = ds->u.defaultDiagRec;
256 char *oaddinfo = r->u.v2Addinfo;
257 char *naddinfo = (
char *) odr_malloc(
259 (oaddinfo ? strlen(oaddinfo) : 0) + 20 +
262 if (oaddinfo && *oaddinfo)
264 strcat(naddinfo, oaddinfo);
265 strcat(naddinfo,
" ");
267 strcat(naddinfo,
"(backend=");
268 strcat(naddinfo, m_host.c_str());
269 strcat(naddinfo,
")");
271 r->u.v2Addinfo = naddinfo;
279 void yf::Z3950Client::Assoc::recv_GDU(Z_GDU *gdu,
int len)
286 if (gdu && gdu->which == Z_GDU_Z3950)
288 Z_APDU *apdu = gdu->u.z3950;
291 case Z_APDU_searchResponse:
292 fixup_nsd(odr, apdu->u.searchResponse->records);
294 case Z_APDU_presentResponse:
295 fixup_nsd(odr, apdu->u.presentResponse->records);
297 case Z_APDU_initResponse:
298 fixup_init(odr, apdu->u.initResponse);
303 m_package->response() = gdu;
307 yazpp_1::IPDU_Observer *yf::Z3950Client::Assoc::sessionNotify(
308 yazpp_1::IPDU_Observable *the_PDU_Observable,
317 m_p->m_connect_timeout_sec = 10;
318 m_p->m_init_timeout_sec = 10;
319 m_p->m_general_timeout_sec = 30;
320 m_p->m_max_sockets = 0;
321 m_p->m_max_sockets_timeout_sec = 15;
322 m_p->m_force_close =
false;
323 m_p->m_client_ip =
false;
324 m_p->m_bind_host =
false;
327 yf::Z3950Client::~Z3950Client() {
330 yf::Z3950Client::Assoc *yf::Z3950Client::Rep::get_assoc(Package &package)
333 boost::mutex::scoped_lock lock(m_mutex);
335 std::map<mp::Session,yf::Z3950Client::Assoc *>::iterator it;
337 Z_GDU *gdu = package.request().get();
339 int max_sockets = package.origin().get_max_sockets();
340 if (max_sockets == 0)
341 max_sockets = m_max_sockets;
343 it = m_clients.find(package.session());
344 if (it != m_clients.end())
346 it->second->m_queue_len++;
351 if (gdu && gdu->which == Z_GDU_Z3950 &&
352 gdu->u.z3950->which == Z_APDU_initRequest)
354 yazpp_1::SocketManager *s = it->second->m_socket_manager;
361 if (!it->second->m_in_use)
363 it->second->m_in_use =
true;
366 m_cond_session_ready.wait(lock);
369 if (!gdu || gdu->which != Z_GDU_Z3950)
375 Z_APDU *apdu = gdu->u.z3950;
377 if (apdu->which != Z_APDU_initRequest)
381 package.response() = odr.create_close(apdu,
382 Z_Close_protocolError,
383 "First PDU was not an "
384 "Initialize Request");
385 package.session().close();
388 std::string target = m_force_target;
389 if (!target.length())
391 target = m_default_target;
392 std::list<std::string> vhosts;
393 mp::util::remove_vhost_otherinfo(&apdu->u.initRequest->otherInfo,
395 size_t no_vhosts = vhosts.size();
398 std::list<std::string>::const_iterator v_it = vhosts.begin();
401 else if (no_vhosts == 0)
403 if (!target.length())
407 package.response() = odr.create_initResponse(
409 YAZ_BIB1_INIT_NEGOTIATION_OPTION_REQUIRED,
410 "z3950_client: No vhost given");
412 package.session().close();
416 else if (no_vhosts > 1)
419 package.response() = odr.create_initResponse(
421 YAZ_BIB1_COMBI_OF_SPECIFIED_DATABASES_UNSUPP,
422 "z3950_client: Can not cope with multiple vhosts");
423 package.session().close();
431 #
if BOOST_VERSION >= 105000
437 xt.sec += m_max_sockets_timeout_sec;
440 int no_not_in_use = 0;
442 it = m_clients.begin();
443 for (; it != m_clients.end(); it++)
445 yf::Z3950Client::Assoc *as = it->second;
446 if (!strcmp(as->m_host.c_str(), target.c_str()))
453 yaz_log(YLOG_LOG,
"Found num=%d/max=%d/idle=%d connections for %s",
454 number, max_sockets, no_not_in_use, target.c_str());
455 if (number < max_sockets)
457 if (no_not_in_use == 0)
461 package.response() = odr.create_initResponse(
462 apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
463 "z3950_client: max sessions");
464 package.session().close();
467 if (!m_cond_session_ready.timed_wait(lock, xt))
471 package.response() = odr.create_initResponse(
472 apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
473 "z3950_client: max sessions");
474 package.session().close();
479 yazpp_1::SocketManager *sm =
new yazpp_1::SocketManager;
480 yazpp_1::PDU_Assoc *pdu_as =
new yazpp_1::PDU_Assoc(sm);
481 yf::Z3950Client::Assoc *as =
482 new yf::Z3950Client::Assoc(sm, pdu_as, target.c_str(),
483 m_connect_timeout_sec,
485 m_max_sockets_timeout_sec,
486 m_general_timeout_sec);
487 m_clients[package.session()] = as;
493 Z_OtherInformation **p = &req->otherInfo;
494 Z_OtherInformationUnit *oi;
499 for (i = 0; i < (*p)->num_elements; i++)
501 Z_External *ext = (*p)->list[i]->information.externallyDefinedInfo;
502 if ((*p)->list[i]->which == Z_OtherInfo_externallyDefinedInfo
504 ext->which == Z_External_charSetandLanguageNegotiation)
508 if ((oi = yaz_oi_update(p, odr, 0, 0, 0)))
510 ODR_MASK_SET(req->options, Z_Options_negotiationModel);
511 oi->which = Z_OtherInfo_externallyDefinedInfo;
512 oi->information.externallyDefinedInfo =
513 yaz_set_proposal_charneg_list(odr,
",",
520 void yf::Z3950Client::Rep::send_and_receive(Package &package,
521 yf::Z3950Client::Assoc *c)
526 c->m_package = &package;
528 if (package.session().is_closed() && c->m_connected && !c->m_has_closed
533 package.request() = odr.create_close(
534 0, Z_Close_finished,
"z3950_client");
537 Z_GDU *gdu = package.request().get();
539 if (!gdu || gdu->which != Z_GDU_Z3950)
542 if (gdu->u.z3950->which == Z_APDU_close)
543 c->m_has_closed =
true;
545 Z_APDU *apdu = gdu->u.z3950;
548 c->m_time_elapsed = 0;
552 std::string host(c->m_host);
556 std::string bind_host = package.origin().get_bind_address();
557 if (bind_host.length())
560 host.append(bind_host);
563 if (c->client(host.c_str()))
567 odr.create_close(gdu->u.z3950, Z_Close_peerAbort, 0);
568 package.session().close();
574 while (!c->m_destroyed && c->m_waiting
575 && c->m_socket_manager->processEvent() > 0)
585 std::string peer_name2 = package.origin().get_address();
586 if (apdu->which == Z_APDU_initRequest && peer_name2.length())
588 Z_OtherInformation **oi = &apdu->u.initRequest->otherInfo;
590 yaz_oi_get_string_oid(oi, yaz_oid_userinfo_client_ip, 1, 1);
594 pcomb.append(peer_name1);
597 pcomb.append(peer_name2);
598 yaz_oi_set_string_oid(&apdu->u.initRequest->otherInfo,
599 odr, yaz_oid_userinfo_client_ip,
603 if (apdu->which == Z_APDU_initRequest && m_charset.length() > 0)
607 c->m_time_elapsed = 0;
612 c->send_GDU(gdu, &len);
614 switch (gdu->u.z3950->which)
616 case Z_APDU_triggerResourceControlRequest:
621 while (!c->m_destroyed && c->m_waiting
622 && c->m_socket_manager->processEvent() > 0)
628 void yf::Z3950Client::Rep::release_assoc(Package &package)
630 boost::mutex::scoped_lock lock(m_mutex);
631 std::map<mp::Session,yf::Z3950Client::Assoc *>::iterator it;
633 it = m_clients.find(package.session());
634 if (it != m_clients.end())
636 it->second->m_in_use =
false;
637 it->second->m_queue_len--;
639 if (package.session().is_closed())
642 it->second->m_destroyed =
true;
643 if (it->second->m_queue_len == 0)
645 yazpp_1::SocketManager *s = it->second->m_socket_manager;
651 m_cond_session_ready.notify_all();
655 void yf::Z3950Client::process(Package &package)
const
657 yf::Z3950Client::Assoc *c = m_p->get_assoc(package);
660 m_p->send_and_receive(package, c);
661 m_p->release_assoc(package);
665 void yf::Z3950Client::configure(
const xmlNode *ptr,
bool test_only,
668 for (ptr = ptr->children; ptr; ptr = ptr->next)
670 if (ptr->type != XML_ELEMENT_NODE)
672 if (!strcmp((
const char *) ptr->name,
"timeout"))
674 m_p->m_general_timeout_sec = mp::xml::get_int(ptr, 30);
676 else if (!strcmp((
const char *) ptr->name,
"connect-timeout"))
678 m_p->m_connect_timeout_sec = mp::xml::get_int(ptr, 10);
680 else if (!strcmp((
const char *) ptr->name,
"init-timeout"))
682 m_p->m_init_timeout_sec = mp::xml::get_int(ptr, 10);
684 else if (!strcmp((
const char *) ptr->name,
"max-sockets-timeout"))
686 m_p->m_max_sockets_timeout_sec = mp::xml::get_int(ptr, 15);
688 else if (!strcmp((
const char *) ptr->name,
"default_target"))
690 m_p->m_default_target = mp::xml::get_text(ptr);
692 else if (!strcmp((
const char *) ptr->name,
"force_target"))
694 m_p->m_force_target = mp::xml::get_text(ptr);
696 else if (!strcmp((
const char *) ptr->name,
"max-sockets"))
698 m_p->m_max_sockets = mp::xml::get_int(ptr, 0);
700 else if (!strcmp((
const char *) ptr->name,
"force_close"))
702 m_p->m_force_close = mp::xml::get_bool(ptr, 0);
704 else if (!strcmp((
const char *) ptr->name,
"client_ip"))
706 m_p->m_client_ip = mp::xml::get_bool(ptr, 0);
708 else if (!strcmp((
const char *) ptr->name,
"charset"))
710 m_p->m_charset = mp::xml::get_text(ptr);
712 else if (!strcmp((
const char *) ptr->name,
"bind_host"))
714 m_p->m_bind_host = mp::xml::get_bool(ptr, 0);
718 throw mp::filter::FilterException(
"Bad element "
719 + std::string((
const char *)
727 return new mp::filter::Z3950Client;
struct metaproxy_1_filter_struct metaproxy_1_filter_z3950_client
static void set_charset_proposal(ODR odr, Z_InitRequest *req, const char *charset)
static mp::filter::Base * filter_creator()