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/z-core.h>
32 #include <yaz/pquery.h>
33 #include <yaz/oid_db.h>
36 #include <boost/thread/mutex.hpp>
37 #include <boost/thread/condition.hpp>
42 /* #include <algorithm> */
45 namespace mp = metaproxy_1;
46 namespace mp_util = metaproxy_1::util;
47 namespace yf = mp::filter;
49 namespace metaproxy_1 {
51 class SRUtoZ3950::Frontend : boost::noncopyable {
58 class SRUtoZ3950::Impl {
60 void configure(const xmlNode *xmlnode);
61 void process(metaproxy_1::Package &package);
63 FrontendPtr get_frontend(mp::Package &package);
64 void release_frontend(mp::Package &package);
65 std::map<std::string, const xmlNode *> m_database_explain;
67 typedef std::map<std::string, int> ActiveUrlMap;
69 boost::mutex m_url_mutex;
70 boost::condition m_cond_url_ready;
71 ActiveUrlMap m_active_urls;
74 boost::mutex m_mutex_session;
75 boost::condition m_cond_session_ready;
76 std::map<mp::Session, FrontendPtr> m_clients;
78 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
79 int z3950_build_query(
80 mp::odr &odr_en, Z_Query *z_query,
81 const Z_SRW_searchRetrieveRequest *req
84 bool z3950_init_request(
88 Z_SRW_PDU *sru_pdu_res,
89 const Z_SRW_PDU *sru_pdu_req
92 bool z3950_close_request(mp::Package &package) const;
94 bool z3950_search_request(
97 Z_SRW_PDU *sru_pdu_res,
98 Z_SRW_searchRetrieveRequest const *sr_req,
102 bool z3950_present_request(
103 mp::Package &package,
105 Z_SRW_PDU *sru_pdu_res,
106 Z_SRW_searchRetrieveRequest const *sr_req
109 bool z3950_to_srw_diagnostics_ok(
111 Z_SRW_searchRetrieveResponse *srw_res,
115 int z3950_to_srw_diag(
117 Z_SRW_searchRetrieveResponse *srw_res,
118 Z_DefaultDiagFormat *ddf
125 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
129 yf::SRUtoZ3950::~SRUtoZ3950()
130 { // must have a destructor because of boost::scoped_ptr
133 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
136 m_p->configure(xmlnode);
139 void yf::SRUtoZ3950::process(mp::Package &package) const
141 m_p->process(package);
144 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
146 const xmlNode * dbnode;
148 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
150 if (dbnode->type != XML_ELEMENT_NODE)
153 std::string database;
154 mp::xml::check_element_mp(dbnode, "database");
156 for (struct _xmlAttr *attr = dbnode->properties;
157 attr; attr = attr->next)
160 mp::xml::check_attribute(attr, "", "name");
161 database = mp::xml::get_text(attr);
163 const xmlNode *explainnode;
164 for (explainnode = dbnode->children;
165 explainnode; explainnode = explainnode->next)
167 if (explainnode->type != XML_ELEMENT_NODE)
172 // assigning explain node to database name - no check yet
173 m_database_explain.insert(std::make_pair(database, explainnode));
178 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
182 mp::odr odr_de(ODR_DECODE);
183 Z_SRW_PDU *sru_pdu_req = 0;
185 mp::odr odr_en(ODR_ENCODE);
186 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
188 // determine database with the HTTP header information only
189 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
190 std::map<std::string, const xmlNode *>::iterator idbexp;
191 idbexp = m_database_explain.find(sruinfo.database);
193 // assign explain config XML DOM node if database is known
194 const xmlNode *explainnode = 0;
195 if (idbexp != m_database_explain.end())
197 explainnode = idbexp->second;
200 // decode SRU request
203 char *stylesheet = 0;
205 // filter acts as sink for non-valid SRU requests
206 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
208 charset, stylesheet)))
212 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
213 sruinfo, explainnode);
214 mp_util::build_sru_response(package, odr_en, soap,
215 sru_pdu_res, charset, stylesheet);
219 metaproxy_1::odr odr;
221 odr.create_HTTP_Response(package.session(),
222 zgdu_req->u.HTTP_Request, 400);
223 package.response() = zgdu_res;
228 bool enable_package_log = false;
230 Z_SRW_extra_arg *arg;
232 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
233 if (!strcmp(arg->name, "x-target"))
235 zurl = std::string(arg->value);
237 else if (!strcmp(arg->name, "x-max-sockets"))
239 package.origin().set_max_sockets(atoi(arg->value));
241 else if (!strcmp(arg->name, "x-session-id"))
243 package.origin().set_custom_session(arg->value);
245 else if (!strcmp(arg->name, "x-log-enable"))
247 if (*arg->value == '1')
249 enable_package_log = true;
250 package.log_enable();
255 // filter acts as sink for SRU explain requests
256 if (sru_pdu_req->which == Z_SRW_explain_request)
258 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
259 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
260 sruinfo, explainnode, er_req);
262 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
263 && sru_pdu_req->u.request)
265 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
267 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_searchRetrieve_response,
268 sru_pdu_req->srw_version);
270 // checking that we have a query
271 ok = mp_util::check_sru_query_exists(package, odr_en,
272 sru_pdu_res, sr_req);
274 if (ok && z3950_init_request(package, odr_en,
275 zurl, sru_pdu_res, sru_pdu_req))
277 ok = z3950_search_request(package, odr_en,
278 sru_pdu_res, sr_req, zurl);
281 && sru_pdu_res->u.response->numberOfRecords
282 && *(sru_pdu_res->u.response->numberOfRecords))
284 ok = z3950_present_request(package, odr_en,
287 z3950_close_request(package);
292 else if (sru_pdu_req->which == Z_SRW_scan_request
293 && sru_pdu_req->u.scan_request)
295 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_scan_response,
296 sru_pdu_req->srw_version);
298 // we do not do scan at the moment, therefore issuing a diagnostic
299 yaz_add_srw_diagnostic(odr_en,
300 &(sru_pdu_res->u.scan_response->diagnostics),
301 &(sru_pdu_res->u.scan_response->num_diagnostics),
302 YAZ_SRW_UNSUPP_OPERATION, "scan");
306 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
308 yaz_add_srw_diagnostic(odr_en,
309 &(sru_pdu_res->u.explain_response->diagnostics),
310 &(sru_pdu_res->u.explain_response->num_diagnostics),
311 YAZ_SRW_UNSUPP_OPERATION, "unknown");
314 if (enable_package_log)
317 package.log_reset(l);
322 wrbuf_puts(w, "<log>\n");
323 wrbuf_xmlputs(w, l.c_str());
324 wrbuf_puts(w, "</log>");
326 sru_pdu_res->extraResponseData_len = w.len();
327 sru_pdu_res->extraResponseData_buf =
328 odr_strdup(odr_en, wrbuf_cstr(w));
332 // build and send SRU response
333 mp_util::build_sru_response(package, odr_en, soap,
334 sru_pdu_res, charset, stylesheet);
338 yf::SRUtoZ3950::Frontend::Frontend() : m_in_use(true)
342 yf::SRUtoZ3950::Frontend::~Frontend()
347 yf::SRUtoZ3950::FrontendPtr yf::SRUtoZ3950::Impl::get_frontend(
348 mp::Package &package)
350 boost::mutex::scoped_lock lock(m_mutex_session);
352 std::map<mp::Session,yf::SRUtoZ3950::FrontendPtr>::iterator it;
356 it = m_clients.find(package.session());
357 if (it == m_clients.end())
360 if (!it->second->m_in_use)
362 it->second->m_in_use = true;
365 m_cond_session_ready.wait(lock);
367 FrontendPtr f(new Frontend);
368 m_clients[package.session()] = f;
373 void yf::SRUtoZ3950::Impl::release_frontend(mp::Package &package)
375 boost::mutex::scoped_lock lock(m_mutex_session);
376 std::map<mp::Session,FrontendPtr>::iterator it;
378 it = m_clients.find(package.session());
379 if (it != m_clients.end())
381 if (package.session().is_closed())
387 it->second->m_in_use = false;
389 m_cond_session_ready.notify_all();
393 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
395 FrontendPtr f = get_frontend(package);
397 Z_GDU *zgdu_req = package.request().get();
399 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
401 if (zgdu_req->u.HTTP_Request->content_len == 0)
403 const char *path = zgdu_req->u.HTTP_Request->path;
404 boost::mutex::scoped_lock lock(m_url_mutex);
407 ActiveUrlMap::iterator it = m_active_urls.find(path);
408 if (it == m_active_urls.end())
410 m_active_urls[path] = 1;
413 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
414 m_cond_url_ready.wait(lock);
417 sru(package, zgdu_req);
418 if (zgdu_req && zgdu_req->u.HTTP_Request->content_len == 0)
420 const char *path = zgdu_req->u.HTTP_Request->path;
421 boost::mutex::scoped_lock lock(m_url_mutex);
423 ActiveUrlMap::iterator it = m_active_urls.find(path);
425 m_active_urls.erase(it);
426 m_cond_url_ready.notify_all();
433 release_frontend(package);
437 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
440 Z_SRW_PDU *sru_pdu_res,
441 const Z_SRW_PDU *sru_pdu_req) const
443 // prepare Z3950 package
444 Package z3950_package(package.session(), package.origin());
445 z3950_package.copy_filter(package);
447 // set initRequest APDU
448 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
449 Z_InitRequest *init_req = apdu->u.initRequest;
451 Z_IdAuthentication *auth = NULL;
452 if (sru_pdu_req->username && !sru_pdu_req->password)
454 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
455 auth->which = Z_IdAuthentication_open;
456 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
458 else if (sru_pdu_req->username && sru_pdu_req->password)
460 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
461 auth->which = Z_IdAuthentication_idPass;
462 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
463 auth->u.idPass->groupId = NULL;
464 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
465 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
468 init_req->idAuthentication = auth;
470 *init_req->preferredMessageSize = 10*1024*1024;
471 *init_req->maximumRecordSize = 10*1024*1024;
473 ODR_MASK_SET(init_req->options, Z_Options_search);
474 ODR_MASK_SET(init_req->options, Z_Options_present);
475 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
476 ODR_MASK_SET(init_req->options, Z_Options_scan);
478 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
479 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
480 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
485 std::list<std::string> dblist;
486 mp_util::split_zurl(zurl, host, dblist);
487 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
490 z3950_package.request() = apdu;
492 // send Z3950 package
493 z3950_package.move();
495 // dead Z3950 backend detection
496 if (z3950_package.session().is_closed())
498 yaz_add_srw_diagnostic(odr_en,
499 &(sru_pdu_res->u.response->diagnostics),
500 &(sru_pdu_res->u.response->num_diagnostics),
501 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
505 // check successful initResponse
506 Z_GDU *z3950_gdu = z3950_package.response().get();
508 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
509 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
510 && *z3950_gdu->u.z3950->u.initResponse->result)
513 yaz_add_srw_diagnostic(odr_en,
514 &(sru_pdu_res->u.response->diagnostics),
515 &(sru_pdu_res->u.response->num_diagnostics),
516 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
520 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
522 Package z3950_package(package.session(), package.origin());
523 z3950_package.copy_filter(package);
524 z3950_package.session().close();
526 z3950_package.move();
528 if (z3950_package.session().is_closed())
535 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
537 Z_SRW_PDU *sru_pdu_res,
538 Z_SRW_searchRetrieveRequest
540 std::string zurl) const
543 assert(sru_pdu_res->u.response);
545 Package z3950_package(package.session(), package.origin());
546 z3950_package.copy_filter(package);
548 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
549 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
551 // RecordSyntax will always be XML
552 z_searchRequest->preferredRecordSyntax
553 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
555 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
556 &z_searchRequest->num_databaseNames,
557 &z_searchRequest->databaseNames))
559 z_searchRequest->num_databaseNames = 1;
560 z_searchRequest->databaseNames = (char**)
561 odr_malloc(odr_en, sizeof(char *));
563 if (sr_req->database)
564 z_searchRequest->databaseNames[0]
565 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
567 z_searchRequest->databaseNames[0]
568 = odr_strdup(odr_en, "Default");
571 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
572 z_searchRequest->query = z_query;
574 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
577 yaz_add_srw_diagnostic(odr_en,
578 &(sru_pdu_res->u.response->diagnostics),
579 &(sru_pdu_res->u.response->num_diagnostics),
585 z3950_package.request() = apdu;
587 z3950_package.move();
589 Z_GDU *z3950_gdu = z3950_package.response().get();
591 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
592 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
593 || !z3950_gdu->u.z3950->u.searchResponse
594 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
596 yaz_add_srw_diagnostic(odr_en,
597 &(sru_pdu_res->u.response->diagnostics),
598 &(sru_pdu_res->u.response->num_diagnostics),
599 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
603 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
605 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
611 sru_pdu_res->u.response->numberOfRecords
612 = odr_intdup(odr_en, *sr->resultCount);
616 bool yf::SRUtoZ3950::Impl::z3950_present_request(
617 mp::Package &package,
619 Z_SRW_PDU *sru_pdu_res,
620 const Z_SRW_searchRetrieveRequest *sr_req)
623 assert(sru_pdu_res->u.response);
630 if (sr_req->maximumRecords)
631 max_recs = *sr_req->maximumRecords;
632 if (sr_req->startRecord)
633 start = *sr_req->startRecord;
635 // no need to work if nobody wants record ..
639 bool send_z3950_present = true;
641 // recordXPath unsupported.
642 if (sr_req->recordXPath)
644 send_z3950_present = false;
645 yaz_add_srw_diagnostic(odr_en,
646 &(sru_pdu_res->u.response->diagnostics),
647 &(sru_pdu_res->u.response->num_diagnostics),
648 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
651 // resultSetTTL unsupported.
652 // resultSetIdleTime in response
653 if (sr_req->resultSetTTL)
655 send_z3950_present = false;
656 yaz_add_srw_diagnostic(odr_en,
657 &(sru_pdu_res->u.response->diagnostics),
658 &(sru_pdu_res->u.response->num_diagnostics),
659 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
663 if (sr_req->sort_type != Z_SRW_sort_type_none)
665 send_z3950_present = false;
666 yaz_add_srw_diagnostic(odr_en,
667 &(sru_pdu_res->u.response->diagnostics),
668 &(sru_pdu_res->u.response->num_diagnostics),
669 YAZ_SRW_SORT_UNSUPP, 0);
672 // start record requested negative, or larger than number of records
673 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
675 send_z3950_present = false;
676 yaz_add_srw_diagnostic(odr_en,
677 &(sru_pdu_res->u.response->diagnostics),
678 &(sru_pdu_res->u.response->num_diagnostics),
679 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
682 // maximumRecords requested negative
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_UNSUPP_PARAMETER_VALUE,
693 // exit on all these above diagnostics
694 if (!send_z3950_present)
697 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
698 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
700 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
701 sru_res->records = (Z_SRW_record *)
702 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
704 while (num < max_recs)
706 // now packaging the z3950 present request
707 Package z3950_package(package.session(), package.origin());
708 z3950_package.copy_filter(package);
709 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
711 assert(apdu->u.presentRequest);
713 *apdu->u.presentRequest->resultSetStartPoint = start + num;
714 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
716 // set response packing to be same as "request" packing..
717 int record_packing = Z_SRW_recordPacking_XML;
718 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
719 record_packing = Z_SRW_recordPacking_string;
721 // RecordSyntax will always be XML
722 apdu->u.presentRequest->preferredRecordSyntax
723 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
725 // z3950'fy record schema
726 if (sr_req->recordSchema)
728 apdu->u.presentRequest->recordComposition
729 = (Z_RecordComposition *)
730 odr_malloc(odr_en, sizeof(Z_RecordComposition));
731 apdu->u.presentRequest->recordComposition->which
732 = Z_RecordComp_simple;
733 apdu->u.presentRequest->recordComposition->u.simple
734 = mp_util::build_esn_from_schema(odr_en,
736 sr_req->recordSchema);
739 // attaching Z3950 package to filter chain
740 z3950_package.request() = apdu;
742 // sending Z30.50 present request
743 z3950_package.move();
745 //check successful Z3950 present response
746 Z_GDU *z3950_gdu = z3950_package.response().get();
747 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
748 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
749 || !z3950_gdu->u.z3950->u.presentResponse)
752 yaz_add_srw_diagnostic(odr_en,
753 &(sru_pdu_res->u.response->diagnostics),
754 &(sru_pdu_res->u.response->num_diagnostics),
755 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
758 // everything fine, continuing
760 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
762 // checking non surrogate diagnostics in Z3950 present response package
763 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
767 // if anything but database or surrogate diagnostics, stop
768 if (!pr->records || pr->records->which != Z_Records_DBOSD)
772 // inserting all records
774 pr->records->u.databaseOrSurDiagnostics->num_records;
775 for (int i = 0; i < returned_recs; i++)
777 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
778 Z_NamePlusRecord *npr
779 = pr->records->u.databaseOrSurDiagnostics->records[i];
781 sru_res->records[i + num].recordPacking = record_packing;
783 if (npr->which == Z_NamePlusRecord_databaseRecord &&
784 npr->u.databaseRecord->direct_reference
785 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
788 // got XML record back
789 Z_External *r = npr->u.databaseRecord;
790 sru_res->records[i + num].recordPosition =
791 odr_intdup(odr_en, position);
792 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
793 sru_res->records[i + num].recordData_buf
794 = odr_strdupn(odr_en,
795 (const char *)r->u.octet_aligned->buf,
796 r->u.octet_aligned->len);
797 sru_res->records[i + num].recordData_len
798 = r->u.octet_aligned->len;
802 // not XML or no database record at all
803 yaz_mk_sru_surrogate(
804 odr_en, sru_res->records + i + num, position,
805 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
808 num += returned_recs;
811 sru_res->num_records = num;
812 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
813 sru_res->nextRecordPosition =
814 odr_intdup(odr_en, start + num);
818 int yf::SRUtoZ3950::Impl::z3950_build_query(
819 mp::odr &odr_en, Z_Query *z_query,
820 const Z_SRW_searchRetrieveRequest *req
823 if (req->query_type == Z_SRW_query_type_cql)
825 Z_External *ext = (Z_External *)
826 odr_malloc(odr_en, sizeof(*ext));
827 ext->direct_reference =
828 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
829 ext->indirect_reference = 0;
831 ext->which = Z_External_CQL;
832 ext->u.cql = odr_strdup(odr_en, req->query.cql);
834 z_query->which = Z_Query_type_104;
835 z_query->u.type_104 = ext;
839 if (req->query_type == Z_SRW_query_type_pqf)
841 Z_RPNQuery *RPNquery;
842 YAZ_PQF_Parser pqf_parser;
844 pqf_parser = yaz_pqf_create ();
846 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
848 yaz_pqf_destroy(pqf_parser);
851 return YAZ_SRW_QUERY_SYNTAX_ERROR;
853 z_query->which = Z_Query_type_1;
854 z_query->u.type_1 = RPNquery;
858 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
861 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
863 Z_SRW_searchRetrieveResponse
865 Z_Records *records) const
867 // checking non surrogate diagnostics in Z3950 present response package
869 && records->which == Z_Records_NSD
870 && records->u.nonSurrogateDiagnostic)
872 z3950_to_srw_diag(odr_en, sru_res,
873 records->u.nonSurrogateDiagnostic);
879 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
881 Z_SRW_searchRetrieveResponse *sru_res,
882 Z_DefaultDiagFormat *ddf) const
884 int bib1_code = *ddf->condition;
885 sru_res->num_diagnostics = 1;
886 sru_res->diagnostics = (Z_SRW_diagnostic *)
887 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
888 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
889 yaz_diag_bib1_to_srw(bib1_code),
894 static mp::filter::Base* filter_creator()
896 return new mp::filter::SRUtoZ3950;
900 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
911 * c-file-style: "Stroustrup"
912 * indent-tabs-mode: nil
914 * vim: shiftwidth=4 tabstop=8 expandtab