1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2012 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,
99 bool z3950_present_request(
100 mp::Package &package,
102 Z_SRW_PDU *sru_pdu_res,
103 Z_SRW_searchRetrieveRequest const *sr_req
106 bool z3950_to_srw_diagnostics_ok(
108 Z_SRW_searchRetrieveResponse *srw_res,
112 int z3950_to_srw_diag(
114 Z_SRW_searchRetrieveResponse *srw_res,
115 Z_DefaultDiagFormat *ddf
122 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
126 yf::SRUtoZ3950::~SRUtoZ3950()
127 { // must have a destructor because of boost::scoped_ptr
130 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
133 m_p->configure(xmlnode);
136 void yf::SRUtoZ3950::process(mp::Package &package) const
138 m_p->process(package);
141 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
143 const xmlNode * dbnode;
145 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
147 if (dbnode->type != XML_ELEMENT_NODE)
150 std::string database;
151 mp::xml::check_element_mp(dbnode, "database");
153 for (struct _xmlAttr *attr = dbnode->properties;
154 attr; attr = attr->next)
157 mp::xml::check_attribute(attr, "", "name");
158 database = mp::xml::get_text(attr);
160 const xmlNode *explainnode;
161 for (explainnode = dbnode->children;
162 explainnode; explainnode = explainnode->next)
164 if (explainnode->type != XML_ELEMENT_NODE)
169 // assigning explain node to database name - no check yet
170 m_database_explain.insert(std::make_pair(database, explainnode));
175 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
179 mp::odr odr_de(ODR_DECODE);
180 Z_SRW_PDU *sru_pdu_req = 0;
182 mp::odr odr_en(ODR_ENCODE);
183 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
185 // determine database with the HTTP header information only
186 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
187 std::map<std::string, const xmlNode *>::iterator idbexp;
188 idbexp = m_database_explain.find(sruinfo.database);
190 // assign explain config XML DOM node if database is known
191 const xmlNode *explainnode = 0;
192 if (idbexp != m_database_explain.end())
194 explainnode = idbexp->second;
197 // decode SRU request
200 char *stylesheet = 0;
202 // filter acts as sink for non-valid SRU requests
203 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
205 charset, stylesheet)))
209 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
210 sruinfo, explainnode);
211 mp_util::build_sru_response(package, odr_en, soap,
212 sru_pdu_res, charset, stylesheet);
216 metaproxy_1::odr odr;
218 odr.create_HTTP_Response(package.session(),
219 zgdu_req->u.HTTP_Request, 400);
220 package.response() = zgdu_res;
225 bool enable_package_log = false;
227 Z_SRW_extra_arg *arg;
229 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
230 if (!strcmp(arg->name, "x-target"))
232 zurl = std::string(arg->value);
234 else if (!strcmp(arg->name, "x-max-sockets"))
236 package.origin().set_max_sockets(atoi(arg->value));
238 else if (!strcmp(arg->name, "x-session-id"))
240 package.origin().set_custom_session(arg->value);
242 else if (!strcmp(arg->name, "x-log-enable"))
244 if (*arg->value == '1')
246 enable_package_log = true;
247 package.log_enable();
252 // filter acts as sink for SRU explain requests
253 if (sru_pdu_req->which == Z_SRW_explain_request)
255 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
256 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
257 sruinfo, explainnode, er_req);
259 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
260 && sru_pdu_req->u.request)
262 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
264 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_searchRetrieve_response,
265 sru_pdu_req->srw_version);
267 // checking that we have a query
268 ok = mp_util::check_sru_query_exists(package, odr_en,
269 sru_pdu_res, sr_req);
271 if (ok && z3950_init_request(package, odr_en,
272 zurl, sru_pdu_res, sru_pdu_req))
274 ok = z3950_search_request(package, odr_en,
275 sru_pdu_res, sr_req, zurl);
278 && sru_pdu_res->u.response->numberOfRecords
279 && *(sru_pdu_res->u.response->numberOfRecords))
281 ok = z3950_present_request(package, odr_en,
284 z3950_close_request(package);
289 else if (sru_pdu_req->which == Z_SRW_scan_request
290 && sru_pdu_req->u.scan_request)
292 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_scan_response,
293 sru_pdu_req->srw_version);
295 // we do not do scan at the moment, therefore issuing a diagnostic
296 yaz_add_srw_diagnostic(odr_en,
297 &(sru_pdu_res->u.scan_response->diagnostics),
298 &(sru_pdu_res->u.scan_response->num_diagnostics),
299 YAZ_SRW_UNSUPP_OPERATION, "scan");
303 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
305 yaz_add_srw_diagnostic(odr_en,
306 &(sru_pdu_res->u.explain_response->diagnostics),
307 &(sru_pdu_res->u.explain_response->num_diagnostics),
308 YAZ_SRW_UNSUPP_OPERATION, "unknown");
311 if (enable_package_log)
314 package.log_reset(l);
319 wrbuf_puts(w, "<log>\n");
320 wrbuf_xmlputs(w, l.c_str());
321 wrbuf_puts(w, "</log>");
323 sru_pdu_res->extraResponseData_len = w.len();
324 sru_pdu_res->extraResponseData_buf =
325 odr_strdup(odr_en, wrbuf_cstr(w));
329 // build and send SRU response
330 mp_util::build_sru_response(package, odr_en, soap,
331 sru_pdu_res, charset, stylesheet);
335 yf::SRUtoZ3950::Frontend::Frontend() : m_in_use(true)
339 yf::SRUtoZ3950::Frontend::~Frontend()
344 yf::SRUtoZ3950::FrontendPtr yf::SRUtoZ3950::Impl::get_frontend(
345 mp::Package &package)
347 boost::mutex::scoped_lock lock(m_mutex_session);
349 std::map<mp::Session,yf::SRUtoZ3950::FrontendPtr>::iterator it;
353 it = m_clients.find(package.session());
354 if (it == m_clients.end())
357 if (!it->second->m_in_use)
359 it->second->m_in_use = true;
362 m_cond_session_ready.wait(lock);
364 FrontendPtr f(new Frontend);
365 m_clients[package.session()] = f;
370 void yf::SRUtoZ3950::Impl::release_frontend(mp::Package &package)
372 boost::mutex::scoped_lock lock(m_mutex_session);
373 std::map<mp::Session,FrontendPtr>::iterator it;
375 it = m_clients.find(package.session());
376 if (it != m_clients.end())
378 if (package.session().is_closed())
384 it->second->m_in_use = false;
386 m_cond_session_ready.notify_all();
390 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
392 FrontendPtr f = get_frontend(package);
394 Z_GDU *zgdu_req = package.request().get();
396 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
398 if (zgdu_req->u.HTTP_Request->content_len == 0)
400 const char *path = zgdu_req->u.HTTP_Request->path;
401 boost::mutex::scoped_lock lock(m_url_mutex);
404 ActiveUrlMap::iterator it = m_active_urls.find(path);
405 if (it == m_active_urls.end())
407 m_active_urls[path] = 1;
410 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
411 m_cond_url_ready.wait(lock);
414 sru(package, zgdu_req);
415 if (zgdu_req && zgdu_req->u.HTTP_Request->content_len == 0)
417 const char *path = zgdu_req->u.HTTP_Request->path;
418 boost::mutex::scoped_lock lock(m_url_mutex);
420 ActiveUrlMap::iterator it = m_active_urls.find(path);
422 m_active_urls.erase(it);
423 m_cond_url_ready.notify_all();
430 release_frontend(package);
434 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
437 Z_SRW_PDU *sru_pdu_res,
438 const Z_SRW_PDU *sru_pdu_req) const
440 // prepare Z3950 package
441 Package z3950_package(package.session(), package.origin());
442 z3950_package.copy_filter(package);
444 // set initRequest APDU
445 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
446 Z_InitRequest *init_req = apdu->u.initRequest;
448 Z_IdAuthentication *auth = NULL;
449 if (sru_pdu_req->username && !sru_pdu_req->password)
451 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
452 auth->which = Z_IdAuthentication_open;
453 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
455 else if (sru_pdu_req->username && sru_pdu_req->password)
457 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
458 auth->which = Z_IdAuthentication_idPass;
459 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
460 auth->u.idPass->groupId = NULL;
461 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
462 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
465 init_req->idAuthentication = auth;
467 *init_req->preferredMessageSize = 10*1024*1024;
468 *init_req->maximumRecordSize = 10*1024*1024;
470 ODR_MASK_SET(init_req->options, Z_Options_search);
471 ODR_MASK_SET(init_req->options, Z_Options_present);
472 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
473 ODR_MASK_SET(init_req->options, Z_Options_scan);
475 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
476 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
477 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
482 std::list<std::string> dblist;
483 mp_util::split_zurl(zurl, host, dblist);
484 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
487 z3950_package.request() = apdu;
489 // send Z3950 package
490 z3950_package.move();
492 // check successful initResponse
493 Z_GDU *z3950_gdu = z3950_package.response().get();
495 int error = YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE;
496 const char *addinfo = 0;
497 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
498 && z3950_gdu->u.z3950->which == Z_APDU_initResponse)
500 Z_InitResponse *initrs = z3950_gdu->u.z3950->u.initResponse;
506 Z_DefaultDiagFormat *df = yaz_decode_init_diag(no, initrs);
510 yaz_add_srw_diagnostic(odr_en,
511 &(sru_pdu_res->u.response->diagnostics),
512 &(sru_pdu_res->u.response->num_diagnostics),
513 yaz_diag_bib1_to_srw(*df->condition),
518 return false; // got least one diagnostic from init
520 // we just have result=false.
521 error = YAZ_SRW_AUTHENTICATION_ERROR;
524 addinfo = "sru_z3950: expected initResponse";
525 yaz_add_srw_diagnostic(odr_en,
526 &(sru_pdu_res->u.response->diagnostics),
527 &(sru_pdu_res->u.response->num_diagnostics),
532 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
534 Package z3950_package(package.session(), package.origin());
535 z3950_package.copy_filter(package);
536 z3950_package.session().close();
538 z3950_package.move();
540 if (z3950_package.session().is_closed())
547 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
549 Z_SRW_PDU *sru_pdu_res,
550 Z_SRW_searchRetrieveRequest
552 std::string zurl) const
555 assert(sru_pdu_res->u.response);
557 Package z3950_package(package.session(), package.origin());
558 z3950_package.copy_filter(package);
560 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
561 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
563 // RecordSyntax will always be XML
564 z_searchRequest->preferredRecordSyntax
565 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
567 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
568 &z_searchRequest->num_databaseNames,
569 &z_searchRequest->databaseNames))
571 z_searchRequest->num_databaseNames = 1;
572 z_searchRequest->databaseNames = (char**)
573 odr_malloc(odr_en, sizeof(char *));
575 if (sr_req->database)
576 z_searchRequest->databaseNames[0]
577 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
579 z_searchRequest->databaseNames[0]
580 = odr_strdup(odr_en, "Default");
583 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
584 z_searchRequest->query = z_query;
586 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
589 yaz_add_srw_diagnostic(odr_en,
590 &(sru_pdu_res->u.response->diagnostics),
591 &(sru_pdu_res->u.response->num_diagnostics),
597 z3950_package.request() = apdu;
599 z3950_package.move();
601 Z_GDU *z3950_gdu = z3950_package.response().get();
603 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
604 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
605 || !z3950_gdu->u.z3950->u.searchResponse
606 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
608 yaz_add_srw_diagnostic(odr_en,
609 &(sru_pdu_res->u.response->diagnostics),
610 &(sru_pdu_res->u.response->num_diagnostics),
611 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
615 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
617 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
623 sru_pdu_res->u.response->numberOfRecords
624 = odr_intdup(odr_en, *sr->resultCount);
628 bool yf::SRUtoZ3950::Impl::z3950_present_request(
629 mp::Package &package,
631 Z_SRW_PDU *sru_pdu_res,
632 const Z_SRW_searchRetrieveRequest *sr_req)
635 assert(sru_pdu_res->u.response);
642 if (sr_req->maximumRecords)
643 max_recs = *sr_req->maximumRecords;
644 if (sr_req->startRecord)
645 start = *sr_req->startRecord;
647 // no need to work if nobody wants record ..
651 bool send_z3950_present = true;
653 // recordXPath unsupported.
654 if (sr_req->recordXPath)
656 send_z3950_present = false;
657 yaz_add_srw_diagnostic(odr_en,
658 &(sru_pdu_res->u.response->diagnostics),
659 &(sru_pdu_res->u.response->num_diagnostics),
660 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
663 // resultSetTTL unsupported.
664 // resultSetIdleTime in response
665 if (sr_req->resultSetTTL)
667 send_z3950_present = false;
668 yaz_add_srw_diagnostic(odr_en,
669 &(sru_pdu_res->u.response->diagnostics),
670 &(sru_pdu_res->u.response->num_diagnostics),
671 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
675 if (sr_req->sort_type != Z_SRW_sort_type_none)
677 send_z3950_present = false;
678 yaz_add_srw_diagnostic(odr_en,
679 &(sru_pdu_res->u.response->diagnostics),
680 &(sru_pdu_res->u.response->num_diagnostics),
681 YAZ_SRW_SORT_UNSUPP, 0);
684 // start record requested negative, or larger than number of records
685 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
687 send_z3950_present = false;
688 yaz_add_srw_diagnostic(odr_en,
689 &(sru_pdu_res->u.response->diagnostics),
690 &(sru_pdu_res->u.response->num_diagnostics),
691 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
694 // maximumRecords requested negative
697 send_z3950_present = false;
698 yaz_add_srw_diagnostic(odr_en,
699 &(sru_pdu_res->u.response->diagnostics),
700 &(sru_pdu_res->u.response->num_diagnostics),
701 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
705 // exit on all these above diagnostics
706 if (!send_z3950_present)
709 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
710 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
712 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
713 sru_res->records = (Z_SRW_record *)
714 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
716 while (num < max_recs)
718 // now packaging the z3950 present request
719 Package z3950_package(package.session(), package.origin());
720 z3950_package.copy_filter(package);
721 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
723 assert(apdu->u.presentRequest);
725 *apdu->u.presentRequest->resultSetStartPoint = start + num;
726 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
728 // set response packing to be same as "request" packing..
729 int record_packing = Z_SRW_recordPacking_XML;
730 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
731 record_packing = Z_SRW_recordPacking_string;
733 // RecordSyntax will always be XML
734 apdu->u.presentRequest->preferredRecordSyntax
735 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
737 // z3950'fy record schema
738 if (sr_req->recordSchema)
740 apdu->u.presentRequest->recordComposition
741 = (Z_RecordComposition *)
742 odr_malloc(odr_en, sizeof(Z_RecordComposition));
743 apdu->u.presentRequest->recordComposition->which
744 = Z_RecordComp_simple;
745 apdu->u.presentRequest->recordComposition->u.simple
746 = mp_util::build_esn_from_schema(odr_en,
748 sr_req->recordSchema);
751 // attaching Z3950 package to filter chain
752 z3950_package.request() = apdu;
754 // sending Z30.50 present request
755 z3950_package.move();
757 //check successful Z3950 present response
758 Z_GDU *z3950_gdu = z3950_package.response().get();
759 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
760 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
761 || !z3950_gdu->u.z3950->u.presentResponse)
764 yaz_add_srw_diagnostic(odr_en,
765 &(sru_pdu_res->u.response->diagnostics),
766 &(sru_pdu_res->u.response->num_diagnostics),
767 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
770 // everything fine, continuing
772 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
774 // checking non surrogate diagnostics in Z3950 present response package
775 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
779 // if anything but database or surrogate diagnostics, stop
780 if (!pr->records || pr->records->which != Z_Records_DBOSD)
784 // inserting all records
786 pr->records->u.databaseOrSurDiagnostics->num_records;
787 for (int i = 0; i < returned_recs; i++)
789 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
790 Z_NamePlusRecord *npr
791 = pr->records->u.databaseOrSurDiagnostics->records[i];
793 sru_res->records[i + num].recordPacking = record_packing;
795 if (npr->which == Z_NamePlusRecord_surrogateDiagnostic)
797 Z_DiagRec *p = npr->u.surrogateDiagnostic;
798 if (p->which == Z_DiagRec_defaultFormat)
800 Z_DefaultDiagFormat *df = p->u.defaultFormat;
801 int c = yaz_diag_bib1_to_srw(*df->condition);
803 yaz_mk_sru_surrogate(
804 odr_en, sru_res->records + i + num, position,
809 yaz_mk_sru_surrogate(
810 odr_en, sru_res->records + i + num, position,
811 YAZ_SRW_RECORD_TEMPORARILY_UNAVAILABLE, 0);
814 else if (npr->which == Z_NamePlusRecord_databaseRecord &&
815 npr->u.databaseRecord->direct_reference
816 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
819 // got XML record back
820 Z_External *r = npr->u.databaseRecord;
821 sru_res->records[i + num].recordPosition =
822 odr_intdup(odr_en, position);
823 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
824 sru_res->records[i + num].recordData_buf
825 = odr_strdupn(odr_en,
826 (const char *)r->u.octet_aligned->buf,
827 r->u.octet_aligned->len);
828 sru_res->records[i + num].recordData_len
829 = r->u.octet_aligned->len;
833 // not XML or no database record at all
834 yaz_mk_sru_surrogate(
835 odr_en, sru_res->records + i + num, position,
836 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
839 num += returned_recs;
842 sru_res->num_records = num;
843 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
844 sru_res->nextRecordPosition =
845 odr_intdup(odr_en, start + num);
849 int yf::SRUtoZ3950::Impl::z3950_build_query(
850 mp::odr &odr_en, Z_Query *z_query,
851 const Z_SRW_searchRetrieveRequest *req
854 if (req->query_type == Z_SRW_query_type_cql)
856 Z_External *ext = (Z_External *)
857 odr_malloc(odr_en, sizeof(*ext));
858 ext->direct_reference =
859 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
860 ext->indirect_reference = 0;
862 ext->which = Z_External_CQL;
863 ext->u.cql = odr_strdup(odr_en, req->query.cql);
865 z_query->which = Z_Query_type_104;
866 z_query->u.type_104 = ext;
870 if (req->query_type == Z_SRW_query_type_pqf)
872 Z_RPNQuery *RPNquery;
873 YAZ_PQF_Parser pqf_parser;
875 pqf_parser = yaz_pqf_create ();
877 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
879 yaz_pqf_destroy(pqf_parser);
882 return YAZ_SRW_QUERY_SYNTAX_ERROR;
884 z_query->which = Z_Query_type_1;
885 z_query->u.type_1 = RPNquery;
889 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
892 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
894 Z_SRW_searchRetrieveResponse
896 Z_Records *records) const
898 // checking non surrogate diagnostics in Z3950 present response package
900 && records->which == Z_Records_NSD
901 && records->u.nonSurrogateDiagnostic)
903 z3950_to_srw_diag(odr_en, sru_res,
904 records->u.nonSurrogateDiagnostic);
910 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
912 Z_SRW_searchRetrieveResponse *sru_res,
913 Z_DefaultDiagFormat *ddf) const
915 int bib1_code = *ddf->condition;
916 sru_res->num_diagnostics = 1;
917 sru_res->diagnostics = (Z_SRW_diagnostic *)
918 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
919 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
920 yaz_diag_bib1_to_srw(bib1_code),
925 static mp::filter::Base* filter_creator()
927 return new mp::filter::SRUtoZ3950;
931 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
942 * c-file-style: "Stroustrup"
943 * indent-tabs-mode: nil
945 * vim: shiftwidth=4 tabstop=8 expandtab