1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2013 Index Data
4 Metaproxy is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 // make std::min actually work on Windows
23 #include <metaproxy/package.hpp>
24 #include <metaproxy/util.hpp>
25 #include "gduutil.hpp"
26 #include "sru_util.hpp"
27 #include "filter_sru_to_z3950.hpp"
30 #include <yaz/pquery.h>
31 #include <yaz/oid_db.h>
34 #include <boost/thread/mutex.hpp>
35 #include <boost/thread/condition.hpp>
42 namespace mp = metaproxy_1;
43 namespace mp_util = metaproxy_1::util;
44 namespace yf = mp::filter;
46 namespace metaproxy_1 {
48 class SRUtoZ3950::Frontend : boost::noncopyable {
55 class SRUtoZ3950::Impl {
57 void configure(const xmlNode *xmlnode);
58 void process(metaproxy_1::Package &package);
60 FrontendPtr get_frontend(mp::Package &package);
61 void release_frontend(mp::Package &package);
62 std::map<std::string, const xmlNode *> m_database_explain;
64 typedef std::map<std::string, int> ActiveUrlMap;
66 boost::mutex m_url_mutex;
67 boost::condition m_cond_url_ready;
68 ActiveUrlMap m_active_urls;
71 boost::mutex m_mutex_session;
72 boost::condition m_cond_session_ready;
73 std::map<mp::Session, FrontendPtr> m_clients;
75 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
76 int z3950_build_query(
77 mp::odr &odr_en, Z_Query *z_query,
78 const Z_SRW_searchRetrieveRequest *req
81 bool z3950_init_request(
85 Z_SRW_PDU *sru_pdu_res,
86 const Z_SRW_PDU *sru_pdu_req
89 bool z3950_close_request(mp::Package &package) const;
91 bool z3950_search_request(
94 Z_SRW_PDU *sru_pdu_res,
95 Z_SRW_searchRetrieveRequest const *sr_req,
100 bool z3950_present_request(
101 mp::Package &package,
103 Z_SRW_PDU *sru_pdu_res,
104 Z_SRW_searchRetrieveRequest const *sr_req
107 bool z3950_to_srw_diagnostics_ok(
109 Z_SRW_searchRetrieveResponse *srw_res,
113 int z3950_to_srw_diag(
115 Z_SRW_searchRetrieveResponse *srw_res,
116 Z_DefaultDiagFormat *ddf
123 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
127 yf::SRUtoZ3950::~SRUtoZ3950()
128 { // must have a destructor because of boost::scoped_ptr
131 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
134 m_p->configure(xmlnode);
137 void yf::SRUtoZ3950::process(mp::Package &package) const
139 m_p->process(package);
142 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
144 const xmlNode * dbnode;
146 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
148 if (dbnode->type != XML_ELEMENT_NODE)
151 std::string database;
152 mp::xml::check_element_mp(dbnode, "database");
154 for (struct _xmlAttr *attr = dbnode->properties;
155 attr; attr = attr->next)
158 mp::xml::check_attribute(attr, "", "name");
159 database = mp::xml::get_text(attr);
161 const xmlNode *explainnode;
162 for (explainnode = dbnode->children;
163 explainnode; explainnode = explainnode->next)
165 if (explainnode->type != XML_ELEMENT_NODE)
170 // assigning explain node to database name - no check yet
171 m_database_explain.insert(std::make_pair(database, explainnode));
176 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
180 mp::odr odr_de(ODR_DECODE);
181 Z_SRW_PDU *sru_pdu_req = 0;
183 mp::odr odr_en(ODR_ENCODE);
184 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
186 // determine database with the HTTP header information only
187 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
188 std::map<std::string, const xmlNode *>::iterator idbexp;
189 idbexp = m_database_explain.find(sruinfo.database);
191 // assign explain config XML DOM node if database is known
192 const xmlNode *explainnode = 0;
193 if (idbexp != m_database_explain.end())
195 explainnode = idbexp->second;
198 // decode SRU request
201 char *stylesheet = 0;
203 // filter acts as sink for non-valid SRU requests
204 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
206 charset, stylesheet)))
210 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
211 sruinfo, explainnode);
212 mp_util::build_sru_response(package, odr_en, soap,
213 sru_pdu_res, charset, stylesheet);
217 metaproxy_1::odr odr;
219 odr.create_HTTP_Response(package.session(),
220 zgdu_req->u.HTTP_Request, 400);
221 package.response() = zgdu_res;
226 bool enable_package_log = false;
229 Z_SRW_extra_arg *arg;
231 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
232 if (!strcmp(arg->name, "x-target"))
234 zurl = std::string(arg->value);
236 else if (!strcmp(arg->name, "x-max-sockets"))
238 package.origin().set_max_sockets(atoi(arg->value));
240 else if (!strcmp(arg->name, "x-session-id"))
242 package.origin().set_custom_session(arg->value);
244 else if (!strcmp(arg->name, "x-log-enable"))
246 if (*arg->value == '1')
248 enable_package_log = true;
249 package.log_enable();
252 else if (!strncmp(arg->name, "x-client-", 9) && arg->value)
256 dbargs += mp_util::uri_encode(arg->name + 9);
258 dbargs += mp_util::uri_encode(arg->value);
263 // filter acts as sink for SRU explain requests
264 if (sru_pdu_req->which == Z_SRW_explain_request)
266 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
267 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
268 sruinfo, explainnode, er_req);
270 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
271 && sru_pdu_req->u.request)
273 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
275 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_searchRetrieve_response,
276 sru_pdu_req->srw_version);
278 // checking that we have a query
279 ok = mp_util::check_sru_query_exists(package, odr_en,
280 sru_pdu_res, sr_req);
282 if (ok && z3950_init_request(package, odr_en,
283 zurl, sru_pdu_res, sru_pdu_req))
285 ok = z3950_search_request(package, odr_en,
286 sru_pdu_res, sr_req, zurl, dbargs);
289 && sru_pdu_res->u.response->numberOfRecords
290 && *(sru_pdu_res->u.response->numberOfRecords))
292 ok = z3950_present_request(package, odr_en,
295 z3950_close_request(package);
300 else if (sru_pdu_req->which == Z_SRW_scan_request
301 && sru_pdu_req->u.scan_request)
303 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_scan_response,
304 sru_pdu_req->srw_version);
306 // we do not do scan at the moment, therefore issuing a diagnostic
307 yaz_add_srw_diagnostic(odr_en,
308 &(sru_pdu_res->u.scan_response->diagnostics),
309 &(sru_pdu_res->u.scan_response->num_diagnostics),
310 YAZ_SRW_UNSUPP_OPERATION, "scan");
314 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
316 yaz_add_srw_diagnostic(odr_en,
317 &(sru_pdu_res->u.explain_response->diagnostics),
318 &(sru_pdu_res->u.explain_response->num_diagnostics),
319 YAZ_SRW_UNSUPP_OPERATION, "unknown");
322 if (enable_package_log)
325 package.log_reset(l);
330 wrbuf_puts(w, "<log>\n");
331 wrbuf_xmlputs(w, l.c_str());
332 wrbuf_puts(w, "</log>");
334 sru_pdu_res->extraResponseData_len = w.len();
335 sru_pdu_res->extraResponseData_buf =
336 odr_strdup(odr_en, wrbuf_cstr(w));
340 // build and send SRU response
341 mp_util::build_sru_response(package, odr_en, soap,
342 sru_pdu_res, charset, stylesheet);
346 yf::SRUtoZ3950::Frontend::Frontend() : m_in_use(true)
350 yf::SRUtoZ3950::Frontend::~Frontend()
355 yf::SRUtoZ3950::FrontendPtr yf::SRUtoZ3950::Impl::get_frontend(
356 mp::Package &package)
358 boost::mutex::scoped_lock lock(m_mutex_session);
360 std::map<mp::Session,yf::SRUtoZ3950::FrontendPtr>::iterator it;
364 it = m_clients.find(package.session());
365 if (it == m_clients.end())
368 if (!it->second->m_in_use)
370 it->second->m_in_use = true;
373 m_cond_session_ready.wait(lock);
375 FrontendPtr f(new Frontend);
376 m_clients[package.session()] = f;
381 void yf::SRUtoZ3950::Impl::release_frontend(mp::Package &package)
383 boost::mutex::scoped_lock lock(m_mutex_session);
384 std::map<mp::Session,FrontendPtr>::iterator it;
386 it = m_clients.find(package.session());
387 if (it != m_clients.end())
389 if (package.session().is_closed())
395 it->second->m_in_use = false;
397 m_cond_session_ready.notify_all();
401 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
403 FrontendPtr f = get_frontend(package);
405 Z_GDU *zgdu_req = package.request().get();
407 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
409 if (zgdu_req->u.HTTP_Request->content_len == 0)
411 const char *path = zgdu_req->u.HTTP_Request->path;
412 boost::mutex::scoped_lock lock(m_url_mutex);
415 ActiveUrlMap::iterator it = m_active_urls.find(path);
416 if (it == m_active_urls.end())
418 m_active_urls[path] = 1;
421 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
422 m_cond_url_ready.wait(lock);
425 sru(package, zgdu_req);
426 if (zgdu_req && zgdu_req->u.HTTP_Request->content_len == 0)
428 const char *path = zgdu_req->u.HTTP_Request->path;
429 boost::mutex::scoped_lock lock(m_url_mutex);
431 ActiveUrlMap::iterator it = m_active_urls.find(path);
433 m_active_urls.erase(it);
434 m_cond_url_ready.notify_all();
441 release_frontend(package);
445 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
448 Z_SRW_PDU *sru_pdu_res,
449 const Z_SRW_PDU *sru_pdu_req) const
451 // prepare Z3950 package
452 Package z3950_package(package.session(), package.origin());
453 z3950_package.copy_filter(package);
455 // set initRequest APDU
456 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
457 Z_InitRequest *init_req = apdu->u.initRequest;
459 Z_IdAuthentication *auth = NULL;
460 if (sru_pdu_req->username && !sru_pdu_req->password)
462 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
463 auth->which = Z_IdAuthentication_open;
464 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
466 else if (sru_pdu_req->username && sru_pdu_req->password)
468 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
469 auth->which = Z_IdAuthentication_idPass;
470 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
471 auth->u.idPass->groupId = NULL;
472 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
473 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
476 init_req->idAuthentication = auth;
478 *init_req->preferredMessageSize = 10*1024*1024;
479 *init_req->maximumRecordSize = 10*1024*1024;
481 ODR_MASK_SET(init_req->options, Z_Options_search);
482 ODR_MASK_SET(init_req->options, Z_Options_present);
483 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
484 ODR_MASK_SET(init_req->options, Z_Options_scan);
486 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
487 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
488 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
493 std::list<std::string> dblist;
494 mp_util::split_zurl(zurl, host, dblist);
495 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
498 z3950_package.request() = apdu;
500 // send Z3950 package
501 z3950_package.move();
503 // check successful initResponse
504 Z_GDU *z3950_gdu = z3950_package.response().get();
506 int error = YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE;
507 const char *addinfo = 0;
508 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
509 && z3950_gdu->u.z3950->which == Z_APDU_initResponse)
511 Z_InitResponse *initrs = z3950_gdu->u.z3950->u.initResponse;
517 Z_DefaultDiagFormat *df = yaz_decode_init_diag(no, initrs);
521 yaz_add_srw_diagnostic(odr_en,
522 &(sru_pdu_res->u.response->diagnostics),
523 &(sru_pdu_res->u.response->num_diagnostics),
524 yaz_diag_bib1_to_srw(*df->condition),
529 return false; // got least one diagnostic from init
531 // we just have result=false.
532 error = YAZ_SRW_AUTHENTICATION_ERROR;
535 addinfo = "sru_z3950: expected initResponse";
536 yaz_add_srw_diagnostic(odr_en,
537 &(sru_pdu_res->u.response->diagnostics),
538 &(sru_pdu_res->u.response->num_diagnostics),
543 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
545 Package z3950_package(package.session(), package.origin());
546 z3950_package.copy_filter(package);
547 z3950_package.session().close();
549 z3950_package.move();
551 if (z3950_package.session().is_closed())
558 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
560 Z_SRW_PDU *sru_pdu_res,
561 Z_SRW_searchRetrieveRequest
564 std::string dbappend) const
567 assert(sru_pdu_res->u.response);
569 Package z3950_package(package.session(), package.origin());
570 z3950_package.copy_filter(package);
572 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
573 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
575 // RecordSyntax will always be XML
576 z_searchRequest->preferredRecordSyntax
577 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
579 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
580 &z_searchRequest->num_databaseNames,
581 &z_searchRequest->databaseNames))
585 if (sr_req->database)
586 db = sr_req->database;
590 if (dbappend.length())
595 z_searchRequest->num_databaseNames = 1;
596 z_searchRequest->databaseNames = (char**)
597 odr_malloc(odr_en, sizeof(char *));
598 z_searchRequest->databaseNames[0] = odr_strdup(odr_en, db.c_str());
601 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
602 z_searchRequest->query = z_query;
604 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
607 yaz_add_srw_diagnostic(odr_en,
608 &(sru_pdu_res->u.response->diagnostics),
609 &(sru_pdu_res->u.response->num_diagnostics),
615 z3950_package.request() = apdu;
617 z3950_package.move();
619 Z_GDU *z3950_gdu = z3950_package.response().get();
621 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
622 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
623 || !z3950_gdu->u.z3950->u.searchResponse
624 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
626 yaz_add_srw_diagnostic(odr_en,
627 &(sru_pdu_res->u.response->diagnostics),
628 &(sru_pdu_res->u.response->num_diagnostics),
629 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
633 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
635 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
641 sru_pdu_res->u.response->numberOfRecords
642 = odr_intdup(odr_en, *sr->resultCount);
646 bool yf::SRUtoZ3950::Impl::z3950_present_request(
647 mp::Package &package,
649 Z_SRW_PDU *sru_pdu_res,
650 const Z_SRW_searchRetrieveRequest *sr_req)
653 assert(sru_pdu_res->u.response);
660 if (sr_req->maximumRecords)
661 max_recs = *sr_req->maximumRecords;
662 if (sr_req->startRecord)
663 start = *sr_req->startRecord;
665 // no need to work if nobody wants record ..
669 bool send_z3950_present = true;
671 // recordXPath unsupported.
672 if (sr_req->recordXPath)
674 send_z3950_present = false;
675 yaz_add_srw_diagnostic(odr_en,
676 &(sru_pdu_res->u.response->diagnostics),
677 &(sru_pdu_res->u.response->num_diagnostics),
678 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
681 // resultSetTTL unsupported.
682 // resultSetIdleTime in response
683 if (sr_req->resultSetTTL)
685 send_z3950_present = false;
686 yaz_add_srw_diagnostic(odr_en,
687 &(sru_pdu_res->u.response->diagnostics),
688 &(sru_pdu_res->u.response->num_diagnostics),
689 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
693 if (sr_req->sort_type != Z_SRW_sort_type_none)
695 send_z3950_present = false;
696 yaz_add_srw_diagnostic(odr_en,
697 &(sru_pdu_res->u.response->diagnostics),
698 &(sru_pdu_res->u.response->num_diagnostics),
699 YAZ_SRW_SORT_UNSUPP, 0);
702 // start record requested negative, or larger than number of records
703 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
705 send_z3950_present = false;
706 yaz_add_srw_diagnostic(odr_en,
707 &(sru_pdu_res->u.response->diagnostics),
708 &(sru_pdu_res->u.response->num_diagnostics),
709 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
712 // maximumRecords requested negative
715 send_z3950_present = false;
716 yaz_add_srw_diagnostic(odr_en,
717 &(sru_pdu_res->u.response->diagnostics),
718 &(sru_pdu_res->u.response->num_diagnostics),
719 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
723 // exit on all these above diagnostics
724 if (!send_z3950_present)
727 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
728 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
730 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
731 sru_res->records = (Z_SRW_record *)
732 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
734 while (num < max_recs)
736 // now packaging the z3950 present request
737 Package z3950_package(package.session(), package.origin());
738 z3950_package.copy_filter(package);
739 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
741 assert(apdu->u.presentRequest);
743 *apdu->u.presentRequest->resultSetStartPoint = start + num;
744 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
746 // set response packing to be same as "request" packing..
747 int record_packing = Z_SRW_recordPacking_XML;
748 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
749 record_packing = Z_SRW_recordPacking_string;
751 // RecordSyntax will always be XML
752 apdu->u.presentRequest->preferredRecordSyntax
753 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
755 // z3950'fy record schema
756 if (sr_req->recordSchema)
758 apdu->u.presentRequest->recordComposition
759 = (Z_RecordComposition *)
760 odr_malloc(odr_en, sizeof(Z_RecordComposition));
761 apdu->u.presentRequest->recordComposition->which
762 = Z_RecordComp_simple;
763 apdu->u.presentRequest->recordComposition->u.simple
764 = mp_util::build_esn_from_schema(odr_en,
766 sr_req->recordSchema);
769 // attaching Z3950 package to filter chain
770 z3950_package.request() = apdu;
772 // sending Z30.50 present request
773 z3950_package.move();
775 //check successful Z3950 present response
776 Z_GDU *z3950_gdu = z3950_package.response().get();
777 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
778 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
779 || !z3950_gdu->u.z3950->u.presentResponse)
782 yaz_add_srw_diagnostic(odr_en,
783 &(sru_pdu_res->u.response->diagnostics),
784 &(sru_pdu_res->u.response->num_diagnostics),
785 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
788 // everything fine, continuing
790 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
792 // checking non surrogate diagnostics in Z3950 present response package
793 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
797 // if anything but database or surrogate diagnostics, stop
798 if (!pr->records || pr->records->which != Z_Records_DBOSD)
802 // inserting all records
804 pr->records->u.databaseOrSurDiagnostics->num_records;
805 for (int i = 0; i < returned_recs; i++)
807 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
808 Z_NamePlusRecord *npr
809 = pr->records->u.databaseOrSurDiagnostics->records[i];
811 sru_res->records[i + num].recordPacking = record_packing;
813 if (npr->which == Z_NamePlusRecord_surrogateDiagnostic)
815 Z_DiagRec *p = npr->u.surrogateDiagnostic;
816 if (p->which == Z_DiagRec_defaultFormat)
818 Z_DefaultDiagFormat *df = p->u.defaultFormat;
819 int c = yaz_diag_bib1_to_srw(*df->condition);
821 yaz_mk_sru_surrogate(
822 odr_en, sru_res->records + i + num, position,
827 yaz_mk_sru_surrogate(
828 odr_en, sru_res->records + i + num, position,
829 YAZ_SRW_RECORD_TEMPORARILY_UNAVAILABLE, 0);
832 else if (npr->which == Z_NamePlusRecord_databaseRecord &&
833 npr->u.databaseRecord->direct_reference
834 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
837 // got XML record back
838 Z_External *r = npr->u.databaseRecord;
839 sru_res->records[i + num].recordPosition =
840 odr_intdup(odr_en, position);
841 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
842 sru_res->records[i + num].recordData_buf
843 = odr_strdupn(odr_en,
844 (const char *)r->u.octet_aligned->buf,
845 r->u.octet_aligned->len);
846 sru_res->records[i + num].recordData_len
847 = r->u.octet_aligned->len;
851 // not XML or no database record at all
852 yaz_mk_sru_surrogate(
853 odr_en, sru_res->records + i + num, position,
854 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
857 num += returned_recs;
860 sru_res->num_records = num;
861 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
862 sru_res->nextRecordPosition =
863 odr_intdup(odr_en, start + num);
867 int yf::SRUtoZ3950::Impl::z3950_build_query(
868 mp::odr &odr_en, Z_Query *z_query,
869 const Z_SRW_searchRetrieveRequest *req
872 if (req->query_type == Z_SRW_query_type_cql)
874 Z_External *ext = (Z_External *)
875 odr_malloc(odr_en, sizeof(*ext));
876 ext->direct_reference =
877 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
878 ext->indirect_reference = 0;
880 ext->which = Z_External_CQL;
881 ext->u.cql = odr_strdup(odr_en, req->query.cql);
883 z_query->which = Z_Query_type_104;
884 z_query->u.type_104 = ext;
888 if (req->query_type == Z_SRW_query_type_pqf)
890 Z_RPNQuery *RPNquery;
891 YAZ_PQF_Parser pqf_parser;
893 pqf_parser = yaz_pqf_create ();
895 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
897 yaz_pqf_destroy(pqf_parser);
900 return YAZ_SRW_QUERY_SYNTAX_ERROR;
902 z_query->which = Z_Query_type_1;
903 z_query->u.type_1 = RPNquery;
907 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
910 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
912 Z_SRW_searchRetrieveResponse
914 Z_Records *records) const
916 // checking non surrogate diagnostics in Z3950 present response package
918 && records->which == Z_Records_NSD
919 && records->u.nonSurrogateDiagnostic)
921 z3950_to_srw_diag(odr_en, sru_res,
922 records->u.nonSurrogateDiagnostic);
928 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
930 Z_SRW_searchRetrieveResponse *sru_res,
931 Z_DefaultDiagFormat *ddf) const
933 int bib1_code = *ddf->condition;
934 sru_res->num_diagnostics = 1;
935 sru_res->diagnostics = (Z_SRW_diagnostic *)
936 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
937 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
938 yaz_diag_bib1_to_srw(bib1_code),
943 static mp::filter::Base* filter_creator()
945 return new mp::filter::SRUtoZ3950;
949 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_z3950 = {
960 * c-file-style: "Stroustrup"
961 * indent-tabs-mode: nil
963 * vim: shiftwidth=4 tabstop=8 expandtab