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();
427 release_frontend(package);
431 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
434 Z_SRW_PDU *sru_pdu_res,
435 const Z_SRW_PDU *sru_pdu_req) const
437 // prepare Z3950 package
438 Package z3950_package(package.session(), package.origin());
439 z3950_package.copy_filter(package);
441 // set initRequest APDU
442 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
443 Z_InitRequest *init_req = apdu->u.initRequest;
445 Z_IdAuthentication *auth = NULL;
446 if (sru_pdu_req->username && !sru_pdu_req->password)
448 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
449 auth->which = Z_IdAuthentication_open;
450 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
452 else 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_idPass;
456 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
457 auth->u.idPass->groupId = NULL;
458 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
459 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
462 init_req->idAuthentication = auth;
464 *init_req->preferredMessageSize = 10*1024*1024;
465 *init_req->maximumRecordSize = 10*1024*1024;
467 ODR_MASK_SET(init_req->options, Z_Options_search);
468 ODR_MASK_SET(init_req->options, Z_Options_present);
469 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
470 ODR_MASK_SET(init_req->options, Z_Options_scan);
472 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
473 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
474 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
479 std::list<std::string> dblist;
480 mp_util::split_zurl(zurl, host, dblist);
481 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
484 z3950_package.request() = apdu;
486 // send Z3950 package
487 z3950_package.move();
489 // dead Z3950 backend detection
490 if (z3950_package.session().is_closed())
492 yaz_add_srw_diagnostic(odr_en,
493 &(sru_pdu_res->u.response->diagnostics),
494 &(sru_pdu_res->u.response->num_diagnostics),
495 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
499 // check successful initResponse
500 Z_GDU *z3950_gdu = z3950_package.response().get();
502 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
503 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
504 && *z3950_gdu->u.z3950->u.initResponse->result)
507 yaz_add_srw_diagnostic(odr_en,
508 &(sru_pdu_res->u.response->diagnostics),
509 &(sru_pdu_res->u.response->num_diagnostics),
510 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
514 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
516 Package z3950_package(package.session(), package.origin());
517 z3950_package.copy_filter(package);
518 z3950_package.session().close();
520 z3950_package.move();
522 if (z3950_package.session().is_closed())
529 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
531 Z_SRW_PDU *sru_pdu_res,
532 Z_SRW_searchRetrieveRequest
534 std::string zurl) const
537 assert(sru_pdu_res->u.response);
539 Package z3950_package(package.session(), package.origin());
540 z3950_package.copy_filter(package);
542 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
543 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
545 // RecordSyntax will always be XML
546 z_searchRequest->preferredRecordSyntax
547 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
549 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
550 &z_searchRequest->num_databaseNames,
551 &z_searchRequest->databaseNames))
553 z_searchRequest->num_databaseNames = 1;
554 z_searchRequest->databaseNames = (char**)
555 odr_malloc(odr_en, sizeof(char *));
557 if (sr_req->database)
558 z_searchRequest->databaseNames[0]
559 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
561 z_searchRequest->databaseNames[0]
562 = odr_strdup(odr_en, "Default");
565 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
566 z_searchRequest->query = z_query;
568 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
571 yaz_add_srw_diagnostic(odr_en,
572 &(sru_pdu_res->u.response->diagnostics),
573 &(sru_pdu_res->u.response->num_diagnostics),
579 z3950_package.request() = apdu;
581 z3950_package.move();
583 Z_GDU *z3950_gdu = z3950_package.response().get();
585 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
586 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
587 || !z3950_gdu->u.z3950->u.searchResponse
588 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
590 yaz_add_srw_diagnostic(odr_en,
591 &(sru_pdu_res->u.response->diagnostics),
592 &(sru_pdu_res->u.response->num_diagnostics),
593 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
597 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
599 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
605 sru_pdu_res->u.response->numberOfRecords
606 = odr_intdup(odr_en, *sr->resultCount);
610 bool yf::SRUtoZ3950::Impl::z3950_present_request(
611 mp::Package &package,
613 Z_SRW_PDU *sru_pdu_res,
614 const Z_SRW_searchRetrieveRequest *sr_req)
617 assert(sru_pdu_res->u.response);
624 if (sr_req->maximumRecords)
625 max_recs = *sr_req->maximumRecords;
626 if (sr_req->startRecord)
627 start = *sr_req->startRecord;
629 // no need to work if nobody wants record ..
633 bool send_z3950_present = true;
635 // recordXPath unsupported.
636 if (sr_req->recordXPath)
638 send_z3950_present = false;
639 yaz_add_srw_diagnostic(odr_en,
640 &(sru_pdu_res->u.response->diagnostics),
641 &(sru_pdu_res->u.response->num_diagnostics),
642 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
645 // resultSetTTL unsupported.
646 // resultSetIdleTime in response
647 if (sr_req->resultSetTTL)
649 send_z3950_present = false;
650 yaz_add_srw_diagnostic(odr_en,
651 &(sru_pdu_res->u.response->diagnostics),
652 &(sru_pdu_res->u.response->num_diagnostics),
653 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
657 if (sr_req->sort_type != Z_SRW_sort_type_none)
659 send_z3950_present = false;
660 yaz_add_srw_diagnostic(odr_en,
661 &(sru_pdu_res->u.response->diagnostics),
662 &(sru_pdu_res->u.response->num_diagnostics),
663 YAZ_SRW_SORT_UNSUPP, 0);
666 // start record requested negative, or larger than number of records
667 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
669 send_z3950_present = false;
670 yaz_add_srw_diagnostic(odr_en,
671 &(sru_pdu_res->u.response->diagnostics),
672 &(sru_pdu_res->u.response->num_diagnostics),
673 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
676 // maximumRecords requested negative
679 send_z3950_present = false;
680 yaz_add_srw_diagnostic(odr_en,
681 &(sru_pdu_res->u.response->diagnostics),
682 &(sru_pdu_res->u.response->num_diagnostics),
683 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
687 // exit on all these above diagnostics
688 if (!send_z3950_present)
691 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
692 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
694 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
695 sru_res->records = (Z_SRW_record *)
696 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
698 while (num < max_recs)
700 // now packaging the z3950 present request
701 Package z3950_package(package.session(), package.origin());
702 z3950_package.copy_filter(package);
703 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
705 assert(apdu->u.presentRequest);
707 *apdu->u.presentRequest->resultSetStartPoint = start + num;
708 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
710 // set response packing to be same as "request" packing..
711 int record_packing = Z_SRW_recordPacking_XML;
712 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
713 record_packing = Z_SRW_recordPacking_string;
715 // RecordSyntax will always be XML
716 apdu->u.presentRequest->preferredRecordSyntax
717 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
719 // z3950'fy record schema
720 if (sr_req->recordSchema)
722 apdu->u.presentRequest->recordComposition
723 = (Z_RecordComposition *)
724 odr_malloc(odr_en, sizeof(Z_RecordComposition));
725 apdu->u.presentRequest->recordComposition->which
726 = Z_RecordComp_simple;
727 apdu->u.presentRequest->recordComposition->u.simple
728 = mp_util::build_esn_from_schema(odr_en,
730 sr_req->recordSchema);
733 // attaching Z3950 package to filter chain
734 z3950_package.request() = apdu;
736 // sending Z30.50 present request
737 z3950_package.move();
739 //check successful Z3950 present response
740 Z_GDU *z3950_gdu = z3950_package.response().get();
741 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
742 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
743 || !z3950_gdu->u.z3950->u.presentResponse)
746 yaz_add_srw_diagnostic(odr_en,
747 &(sru_pdu_res->u.response->diagnostics),
748 &(sru_pdu_res->u.response->num_diagnostics),
749 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
752 // everything fine, continuing
754 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
756 // checking non surrogate diagnostics in Z3950 present response package
757 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
761 // if anything but database or surrogate diagnostics, stop
762 if (!pr->records || pr->records->which != Z_Records_DBOSD)
766 // inserting all records
768 pr->records->u.databaseOrSurDiagnostics->num_records;
769 for (int i = 0; i < returned_recs; i++)
771 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
772 Z_NamePlusRecord *npr
773 = pr->records->u.databaseOrSurDiagnostics->records[i];
775 sru_res->records[i + num].recordPacking = record_packing;
777 if (npr->which == Z_NamePlusRecord_databaseRecord &&
778 npr->u.databaseRecord->direct_reference
779 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
782 // got XML record back
783 Z_External *r = npr->u.databaseRecord;
784 sru_res->records[i + num].recordPosition =
785 odr_intdup(odr_en, position);
786 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
787 sru_res->records[i + num].recordData_buf
788 = odr_strdupn(odr_en,
789 (const char *)r->u.octet_aligned->buf,
790 r->u.octet_aligned->len);
791 sru_res->records[i + num].recordData_len
792 = r->u.octet_aligned->len;
796 // not XML or no database record at all
797 yaz_mk_sru_surrogate(
798 odr_en, sru_res->records + i + num, position,
799 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
802 num += returned_recs;
805 sru_res->num_records = num;
806 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
807 sru_res->nextRecordPosition =
808 odr_intdup(odr_en, start + num);
812 int yf::SRUtoZ3950::Impl::z3950_build_query(
813 mp::odr &odr_en, Z_Query *z_query,
814 const Z_SRW_searchRetrieveRequest *req
817 if (req->query_type == Z_SRW_query_type_cql)
819 Z_External *ext = (Z_External *)
820 odr_malloc(odr_en, sizeof(*ext));
821 ext->direct_reference =
822 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
823 ext->indirect_reference = 0;
825 ext->which = Z_External_CQL;
826 ext->u.cql = odr_strdup(odr_en, req->query.cql);
828 z_query->which = Z_Query_type_104;
829 z_query->u.type_104 = ext;
833 if (req->query_type == Z_SRW_query_type_pqf)
835 Z_RPNQuery *RPNquery;
836 YAZ_PQF_Parser pqf_parser;
838 pqf_parser = yaz_pqf_create ();
840 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
842 yaz_pqf_destroy(pqf_parser);
845 return YAZ_SRW_QUERY_SYNTAX_ERROR;
847 z_query->which = Z_Query_type_1;
848 z_query->u.type_1 = RPNquery;
852 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
855 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
857 Z_SRW_searchRetrieveResponse
859 Z_Records *records) const
861 // checking non surrogate diagnostics in Z3950 present response package
863 && records->which == Z_Records_NSD
864 && records->u.nonSurrogateDiagnostic)
866 z3950_to_srw_diag(odr_en, sru_res,
867 records->u.nonSurrogateDiagnostic);
873 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
875 Z_SRW_searchRetrieveResponse *sru_res,
876 Z_DefaultDiagFormat *ddf) const
878 int bib1_code = *ddf->condition;
879 sru_res->num_diagnostics = 1;
880 sru_res->diagnostics = (Z_SRW_diagnostic *)
881 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
882 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
883 yaz_diag_bib1_to_srw(bib1_code),
888 static mp::filter::Base* filter_creator()
890 return new mp::filter::SRUtoZ3950;
894 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
905 * c-file-style: "Stroustrup"
906 * indent-tabs-mode: nil
908 * vim: shiftwidth=4 tabstop=8 expandtab