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(odr_en, Z_SRW_searchRetrieve_response);
269 // checking that we have a query
270 ok = mp_util::check_sru_query_exists(package, odr_en,
271 sru_pdu_res, sr_req);
273 if (ok && z3950_init_request(package, odr_en,
274 zurl, sru_pdu_res, sru_pdu_req))
276 ok = z3950_search_request(package, odr_en,
277 sru_pdu_res, sr_req, zurl);
280 && sru_pdu_res->u.response->numberOfRecords
281 && *(sru_pdu_res->u.response->numberOfRecords))
283 ok = z3950_present_request(package, odr_en,
286 z3950_close_request(package);
291 else if (sru_pdu_req->which == Z_SRW_scan_request
292 && sru_pdu_req->u.scan_request)
294 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
296 // we do not do scan at the moment, therefore issuing a diagnostic
297 yaz_add_srw_diagnostic(odr_en,
298 &(sru_pdu_res->u.scan_response->diagnostics),
299 &(sru_pdu_res->u.scan_response->num_diagnostics),
300 YAZ_SRW_UNSUPP_OPERATION, "scan");
304 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
306 yaz_add_srw_diagnostic(odr_en,
307 &(sru_pdu_res->u.explain_response->diagnostics),
308 &(sru_pdu_res->u.explain_response->num_diagnostics),
309 YAZ_SRW_UNSUPP_OPERATION, "unknown");
312 if (enable_package_log)
315 package.log_reset(l);
320 wrbuf_puts(w, "<log>\n");
321 wrbuf_xmlputs(w, l.c_str());
322 wrbuf_puts(w, "</log>");
324 sru_pdu_res->extraResponseData_len = w.len();
325 sru_pdu_res->extraResponseData_buf =
326 odr_strdup(odr_en, wrbuf_cstr(w));
330 // build and send SRU response
331 mp_util::build_sru_response(package, odr_en, soap,
332 sru_pdu_res, charset, stylesheet);
336 yf::SRUtoZ3950::Frontend::Frontend() : m_in_use(true)
340 yf::SRUtoZ3950::Frontend::~Frontend()
345 yf::SRUtoZ3950::FrontendPtr yf::SRUtoZ3950::Impl::get_frontend(
346 mp::Package &package)
348 boost::mutex::scoped_lock lock(m_mutex_session);
350 std::map<mp::Session,yf::SRUtoZ3950::FrontendPtr>::iterator it;
354 it = m_clients.find(package.session());
355 if (it == m_clients.end())
358 if (!it->second->m_in_use)
360 it->second->m_in_use = true;
363 m_cond_session_ready.wait(lock);
365 FrontendPtr f(new Frontend);
366 m_clients[package.session()] = f;
371 void yf::SRUtoZ3950::Impl::release_frontend(mp::Package &package)
373 boost::mutex::scoped_lock lock(m_mutex_session);
374 std::map<mp::Session,FrontendPtr>::iterator it;
376 it = m_clients.find(package.session());
377 if (it != m_clients.end())
379 if (package.session().is_closed())
385 it->second->m_in_use = false;
387 m_cond_session_ready.notify_all();
391 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
393 FrontendPtr f = get_frontend(package);
395 Z_GDU *zgdu_req = package.request().get();
397 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
399 if (zgdu_req->u.HTTP_Request->content_len == 0)
401 const char *path = zgdu_req->u.HTTP_Request->path;
402 boost::mutex::scoped_lock lock(m_url_mutex);
405 ActiveUrlMap::iterator it = m_active_urls.find(path);
406 if (it == m_active_urls.end())
408 m_active_urls[path] = 1;
411 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
412 m_cond_url_ready.wait(lock);
415 sru(package, zgdu_req);
416 if (zgdu_req && zgdu_req->u.HTTP_Request->content_len == 0)
418 const char *path = zgdu_req->u.HTTP_Request->path;
419 boost::mutex::scoped_lock lock(m_url_mutex);
421 ActiveUrlMap::iterator it = m_active_urls.find(path);
423 m_active_urls.erase(it);
424 m_cond_url_ready.notify_all();
431 release_frontend(package);
435 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
438 Z_SRW_PDU *sru_pdu_res,
439 const Z_SRW_PDU *sru_pdu_req) const
441 // prepare Z3950 package
442 Package z3950_package(package.session(), package.origin());
443 z3950_package.copy_filter(package);
445 // set initRequest APDU
446 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
447 Z_InitRequest *init_req = apdu->u.initRequest;
449 Z_IdAuthentication *auth = NULL;
450 if (sru_pdu_req->username && !sru_pdu_req->password)
452 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
453 auth->which = Z_IdAuthentication_open;
454 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
456 else if (sru_pdu_req->username && sru_pdu_req->password)
458 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
459 auth->which = Z_IdAuthentication_idPass;
460 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
461 auth->u.idPass->groupId = NULL;
462 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
463 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
466 init_req->idAuthentication = auth;
468 *init_req->preferredMessageSize = 10*1024*1024;
469 *init_req->maximumRecordSize = 10*1024*1024;
471 ODR_MASK_SET(init_req->options, Z_Options_search);
472 ODR_MASK_SET(init_req->options, Z_Options_present);
473 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
474 ODR_MASK_SET(init_req->options, Z_Options_scan);
476 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
477 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
478 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
483 std::list<std::string> dblist;
484 mp_util::split_zurl(zurl, host, dblist);
485 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
488 z3950_package.request() = apdu;
490 // send Z3950 package
491 z3950_package.move();
493 // dead Z3950 backend detection
494 if (z3950_package.session().is_closed())
496 yaz_add_srw_diagnostic(odr_en,
497 &(sru_pdu_res->u.response->diagnostics),
498 &(sru_pdu_res->u.response->num_diagnostics),
499 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
503 // check successful initResponse
504 Z_GDU *z3950_gdu = z3950_package.response().get();
506 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
507 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
508 && *z3950_gdu->u.z3950->u.initResponse->result)
511 yaz_add_srw_diagnostic(odr_en,
512 &(sru_pdu_res->u.response->diagnostics),
513 &(sru_pdu_res->u.response->num_diagnostics),
514 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
518 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
520 Package z3950_package(package.session(), package.origin());
521 z3950_package.copy_filter(package);
522 z3950_package.session().close();
524 z3950_package.move();
526 if (z3950_package.session().is_closed())
533 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
535 Z_SRW_PDU *sru_pdu_res,
536 Z_SRW_searchRetrieveRequest
538 std::string zurl) const
541 assert(sru_pdu_res->u.response);
543 Package z3950_package(package.session(), package.origin());
544 z3950_package.copy_filter(package);
546 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
547 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
549 // RecordSyntax will always be XML
550 z_searchRequest->preferredRecordSyntax
551 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
553 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
554 &z_searchRequest->num_databaseNames,
555 &z_searchRequest->databaseNames))
557 z_searchRequest->num_databaseNames = 1;
558 z_searchRequest->databaseNames = (char**)
559 odr_malloc(odr_en, sizeof(char *));
561 if (sr_req->database)
562 z_searchRequest->databaseNames[0]
563 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
565 z_searchRequest->databaseNames[0]
566 = odr_strdup(odr_en, "Default");
569 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
570 z_searchRequest->query = z_query;
572 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
575 yaz_add_srw_diagnostic(odr_en,
576 &(sru_pdu_res->u.response->diagnostics),
577 &(sru_pdu_res->u.response->num_diagnostics),
583 z3950_package.request() = apdu;
585 z3950_package.move();
587 Z_GDU *z3950_gdu = z3950_package.response().get();
589 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
590 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
591 || !z3950_gdu->u.z3950->u.searchResponse
592 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
594 yaz_add_srw_diagnostic(odr_en,
595 &(sru_pdu_res->u.response->diagnostics),
596 &(sru_pdu_res->u.response->num_diagnostics),
597 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
601 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
603 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
609 sru_pdu_res->u.response->numberOfRecords
610 = odr_intdup(odr_en, *sr->resultCount);
614 bool yf::SRUtoZ3950::Impl::z3950_present_request(
615 mp::Package &package,
617 Z_SRW_PDU *sru_pdu_res,
618 const Z_SRW_searchRetrieveRequest *sr_req)
621 assert(sru_pdu_res->u.response);
628 if (sr_req->maximumRecords)
629 max_recs = *sr_req->maximumRecords;
630 if (sr_req->startRecord)
631 start = *sr_req->startRecord;
633 // no need to work if nobody wants record ..
637 bool send_z3950_present = true;
639 // recordXPath unsupported.
640 if (sr_req->recordXPath)
642 send_z3950_present = false;
643 yaz_add_srw_diagnostic(odr_en,
644 &(sru_pdu_res->u.response->diagnostics),
645 &(sru_pdu_res->u.response->num_diagnostics),
646 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
649 // resultSetTTL unsupported.
650 // resultSetIdleTime in response
651 if (sr_req->resultSetTTL)
653 send_z3950_present = false;
654 yaz_add_srw_diagnostic(odr_en,
655 &(sru_pdu_res->u.response->diagnostics),
656 &(sru_pdu_res->u.response->num_diagnostics),
657 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
661 if (sr_req->sort_type != Z_SRW_sort_type_none)
663 send_z3950_present = false;
664 yaz_add_srw_diagnostic(odr_en,
665 &(sru_pdu_res->u.response->diagnostics),
666 &(sru_pdu_res->u.response->num_diagnostics),
667 YAZ_SRW_SORT_UNSUPP, 0);
670 // start record requested negative, or larger than number of records
671 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
673 send_z3950_present = false;
674 yaz_add_srw_diagnostic(odr_en,
675 &(sru_pdu_res->u.response->diagnostics),
676 &(sru_pdu_res->u.response->num_diagnostics),
677 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
680 // maximumRecords requested negative
683 send_z3950_present = false;
684 yaz_add_srw_diagnostic(odr_en,
685 &(sru_pdu_res->u.response->diagnostics),
686 &(sru_pdu_res->u.response->num_diagnostics),
687 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
691 // exit on all these above diagnostics
692 if (!send_z3950_present)
695 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
696 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
698 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
699 sru_res->records = (Z_SRW_record *)
700 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
702 while (num < max_recs)
704 // now packaging the z3950 present request
705 Package z3950_package(package.session(), package.origin());
706 z3950_package.copy_filter(package);
707 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
709 assert(apdu->u.presentRequest);
711 *apdu->u.presentRequest->resultSetStartPoint = start + num;
712 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
714 // set response packing to be same as "request" packing..
715 int record_packing = Z_SRW_recordPacking_XML;
716 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
717 record_packing = Z_SRW_recordPacking_string;
719 // RecordSyntax will always be XML
720 apdu->u.presentRequest->preferredRecordSyntax
721 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
723 // z3950'fy record schema
724 if (sr_req->recordSchema)
726 apdu->u.presentRequest->recordComposition
727 = (Z_RecordComposition *)
728 odr_malloc(odr_en, sizeof(Z_RecordComposition));
729 apdu->u.presentRequest->recordComposition->which
730 = Z_RecordComp_simple;
731 apdu->u.presentRequest->recordComposition->u.simple
732 = mp_util::build_esn_from_schema(odr_en,
734 sr_req->recordSchema);
737 // attaching Z3950 package to filter chain
738 z3950_package.request() = apdu;
740 // sending Z30.50 present request
741 z3950_package.move();
743 //check successful Z3950 present response
744 Z_GDU *z3950_gdu = z3950_package.response().get();
745 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
746 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
747 || !z3950_gdu->u.z3950->u.presentResponse)
750 yaz_add_srw_diagnostic(odr_en,
751 &(sru_pdu_res->u.response->diagnostics),
752 &(sru_pdu_res->u.response->num_diagnostics),
753 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
756 // everything fine, continuing
758 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
760 // checking non surrogate diagnostics in Z3950 present response package
761 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
765 // if anything but database or surrogate diagnostics, stop
766 if (!pr->records || pr->records->which != Z_Records_DBOSD)
770 // inserting all records
772 pr->records->u.databaseOrSurDiagnostics->num_records;
773 for (int i = 0; i < returned_recs; i++)
775 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
776 Z_NamePlusRecord *npr
777 = pr->records->u.databaseOrSurDiagnostics->records[i];
779 sru_res->records[i + num].recordPacking = record_packing;
781 if (npr->which == Z_NamePlusRecord_databaseRecord &&
782 npr->u.databaseRecord->direct_reference
783 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
786 // got XML record back
787 Z_External *r = npr->u.databaseRecord;
788 sru_res->records[i + num].recordPosition =
789 odr_intdup(odr_en, position);
790 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
791 sru_res->records[i + num].recordData_buf
792 = odr_strdupn(odr_en,
793 (const char *)r->u.octet_aligned->buf,
794 r->u.octet_aligned->len);
795 sru_res->records[i + num].recordData_len
796 = r->u.octet_aligned->len;
800 // not XML or no database record at all
801 yaz_mk_sru_surrogate(
802 odr_en, sru_res->records + i + num, position,
803 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
806 num += returned_recs;
809 sru_res->num_records = num;
810 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
811 sru_res->nextRecordPosition =
812 odr_intdup(odr_en, start + num);
816 int yf::SRUtoZ3950::Impl::z3950_build_query(
817 mp::odr &odr_en, Z_Query *z_query,
818 const Z_SRW_searchRetrieveRequest *req
821 if (req->query_type == Z_SRW_query_type_cql)
823 Z_External *ext = (Z_External *)
824 odr_malloc(odr_en, sizeof(*ext));
825 ext->direct_reference =
826 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
827 ext->indirect_reference = 0;
829 ext->which = Z_External_CQL;
830 ext->u.cql = odr_strdup(odr_en, req->query.cql);
832 z_query->which = Z_Query_type_104;
833 z_query->u.type_104 = ext;
837 if (req->query_type == Z_SRW_query_type_pqf)
839 Z_RPNQuery *RPNquery;
840 YAZ_PQF_Parser pqf_parser;
842 pqf_parser = yaz_pqf_create ();
844 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
846 yaz_pqf_destroy(pqf_parser);
849 return YAZ_SRW_QUERY_SYNTAX_ERROR;
851 z_query->which = Z_Query_type_1;
852 z_query->u.type_1 = RPNquery;
856 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
859 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
861 Z_SRW_searchRetrieveResponse
863 Z_Records *records) const
865 // checking non surrogate diagnostics in Z3950 present response package
867 && records->which == Z_Records_NSD
868 && records->u.nonSurrogateDiagnostic)
870 z3950_to_srw_diag(odr_en, sru_res,
871 records->u.nonSurrogateDiagnostic);
877 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
879 Z_SRW_searchRetrieveResponse *sru_res,
880 Z_DefaultDiagFormat *ddf) const
882 int bib1_code = *ddf->condition;
883 sru_res->num_diagnostics = 1;
884 sru_res->diagnostics = (Z_SRW_diagnostic *)
885 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
886 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
887 yaz_diag_bib1_to_srw(bib1_code),
892 static mp::filter::Base* filter_creator()
894 return new mp::filter::SRUtoZ3950;
898 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
909 * c-file-style: "Stroustrup"
910 * indent-tabs-mode: nil
912 * vim: shiftwidth=4 tabstop=8 expandtab