1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2011 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::Impl {
53 void configure(const xmlNode *xmlnode);
54 void process(metaproxy_1::Package &package);
56 std::map<std::string, const xmlNode *> m_database_explain;
58 typedef std::map<std::string, int> ActiveUrlMap;
61 boost::condition m_cond_url_ready;
62 ActiveUrlMap m_active_urls;
64 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
65 int z3950_build_query(
66 mp::odr &odr_en, Z_Query *z_query,
67 const Z_SRW_searchRetrieveRequest *req
70 bool z3950_init_request(
74 Z_SRW_PDU *sru_pdu_res,
75 const Z_SRW_PDU *sru_pdu_req
78 bool z3950_close_request(mp::Package &package) const;
80 bool z3950_search_request(
83 Z_SRW_PDU *sru_pdu_res,
84 Z_SRW_searchRetrieveRequest const *sr_req,
88 bool z3950_present_request(
91 Z_SRW_PDU *sru_pdu_res,
92 Z_SRW_searchRetrieveRequest const *sr_req
95 bool z3950_to_srw_diagnostics_ok(
97 Z_SRW_searchRetrieveResponse *srw_res,
101 int z3950_to_srw_diag(
103 Z_SRW_searchRetrieveResponse *srw_res,
104 Z_DefaultDiagFormat *ddf
111 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
115 yf::SRUtoZ3950::~SRUtoZ3950()
116 { // must have a destructor because of boost::scoped_ptr
119 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
122 m_p->configure(xmlnode);
125 void yf::SRUtoZ3950::process(mp::Package &package) const
127 m_p->process(package);
130 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
132 const xmlNode * dbnode;
134 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
136 if (dbnode->type != XML_ELEMENT_NODE)
139 std::string database;
140 mp::xml::check_element_mp(dbnode, "database");
142 for (struct _xmlAttr *attr = dbnode->properties;
143 attr; attr = attr->next)
146 mp::xml::check_attribute(attr, "", "name");
147 database = mp::xml::get_text(attr);
149 const xmlNode *explainnode;
150 for (explainnode = dbnode->children;
151 explainnode; explainnode = explainnode->next)
153 if (explainnode->type != XML_ELEMENT_NODE)
158 // assigning explain node to database name - no check yet
159 m_database_explain.insert(std::make_pair(database, explainnode));
164 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
168 mp::odr odr_de(ODR_DECODE);
169 Z_SRW_PDU *sru_pdu_req = 0;
171 mp::odr odr_en(ODR_ENCODE);
172 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
174 // determine database with the HTTP header information only
175 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
176 std::map<std::string, const xmlNode *>::iterator idbexp;
177 idbexp = m_database_explain.find(sruinfo.database);
179 // assign explain config XML DOM node if database is known
180 const xmlNode *explainnode = 0;
181 if (idbexp != m_database_explain.end())
183 explainnode = idbexp->second;
186 // decode SRU request
189 char *stylesheet = 0;
191 // filter acts as sink for non-valid SRU requests
192 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
194 charset, stylesheet)))
198 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
199 sruinfo, explainnode);
200 mp_util::build_sru_response(package, odr_en, soap,
201 sru_pdu_res, charset, stylesheet);
205 metaproxy_1::odr odr;
207 odr.create_HTTP_Response(package.session(),
208 zgdu_req->u.HTTP_Request, 400);
209 package.response() = zgdu_res;
215 Z_SRW_extra_arg *arg;
217 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
218 if (!strcmp(arg->name, "x-target"))
220 zurl = std::string(arg->value);
222 else if (!strcmp(arg->name, "x-max-sockets"))
224 package.origin().set_max_sockets(atoi(arg->value));
226 else if (!strcmp(arg->name, "x-session-id"))
228 package.origin().set_custom_session(arg->value);
230 else if (!strcmp(arg->name, "x-log-enable"))
232 if (*arg->value == '1')
233 package.log_enable();
237 // filter acts as sink for SRU explain requests
238 if (sru_pdu_req->which == Z_SRW_explain_request)
240 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
241 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
243 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
244 sruinfo, explainnode, er_req);
246 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
247 && sru_pdu_req->u.request)
249 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
251 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
253 // checking that we have a query
254 ok = mp_util::check_sru_query_exists(package, odr_en,
255 sru_pdu_res, sr_req);
257 if (ok && z3950_init_request(package, odr_en,
258 zurl, sru_pdu_res, sru_pdu_req))
260 ok = z3950_search_request(package, odr_en,
261 sru_pdu_res, sr_req, zurl);
264 && sru_pdu_res->u.response->numberOfRecords
265 && *(sru_pdu_res->u.response->numberOfRecords))
267 ok = z3950_present_request(package, odr_en,
270 z3950_close_request(package);
275 else if (sru_pdu_req->which == Z_SRW_scan_request
276 && sru_pdu_req->u.scan_request)
278 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
280 // we do not do scan at the moment, therefore issuing a diagnostic
281 yaz_add_srw_diagnostic(odr_en,
282 &(sru_pdu_res->u.scan_response->diagnostics),
283 &(sru_pdu_res->u.scan_response->num_diagnostics),
284 YAZ_SRW_UNSUPP_OPERATION, "scan");
288 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
290 yaz_add_srw_diagnostic(odr_en,
291 &(sru_pdu_res->u.explain_response->diagnostics),
292 &(sru_pdu_res->u.explain_response->num_diagnostics),
293 YAZ_SRW_UNSUPP_OPERATION, "unknown");
298 package.log_reset(l);
301 WRBUF w = wrbuf_alloc();
303 wrbuf_puts(w, "<log>\n");
304 wrbuf_xmlputs(w, l.c_str());
305 wrbuf_puts(w, "</log>");
307 sru_pdu_res->extraResponseData_len = wrbuf_len(w);
308 sru_pdu_res->extraResponseData_buf = odr_strdup(odr_en, wrbuf_cstr(w));
312 // build and send SRU response
313 mp_util::build_sru_response(package, odr_en, soap,
314 sru_pdu_res, charset, stylesheet);
318 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
320 Z_GDU *zgdu_req = package.request().get();
322 // ignoring all non HTTP_Request packages
323 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request))
329 // only working on HTTP_Request packages now
331 // see if HTTP request is already being executed..
332 // we consider only the SRU - GET case..
333 if (zgdu_req->u.HTTP_Request->content_len == 0)
335 const char *path = zgdu_req->u.HTTP_Request->path;
336 boost::mutex::scoped_lock lock(m_mutex);
339 ActiveUrlMap::iterator it = m_active_urls.find(path);
340 if (it == m_active_urls.end())
342 m_active_urls[path] = 1;
345 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
346 m_cond_url_ready.wait(lock);
349 sru(package, zgdu_req);
350 if (zgdu_req->u.HTTP_Request->content_len == 0)
352 const char *path = zgdu_req->u.HTTP_Request->path;
353 boost::mutex::scoped_lock lock(m_mutex);
355 ActiveUrlMap::iterator it = m_active_urls.find(path);
357 m_active_urls.erase(it);
358 m_cond_url_ready.notify_all();
364 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
367 Z_SRW_PDU *sru_pdu_res,
368 const Z_SRW_PDU *sru_pdu_req) const
370 // prepare Z3950 package
371 Package z3950_package(package.session(), package.origin());
372 z3950_package.copy_filter(package);
374 // set initRequest APDU
375 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
376 Z_InitRequest *init_req = apdu->u.initRequest;
378 Z_IdAuthentication *auth = NULL;
379 if (sru_pdu_req->username && !sru_pdu_req->password)
381 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
382 auth->which = Z_IdAuthentication_open;
383 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
385 else if (sru_pdu_req->username && sru_pdu_req->password)
387 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
388 auth->which = Z_IdAuthentication_idPass;
389 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
390 auth->u.idPass->groupId = NULL;
391 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
392 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
395 init_req->idAuthentication = auth;
397 *init_req->preferredMessageSize = 10*1024*1024;
398 *init_req->maximumRecordSize = 10*1024*1024;
400 ODR_MASK_SET(init_req->options, Z_Options_search);
401 ODR_MASK_SET(init_req->options, Z_Options_present);
402 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
403 ODR_MASK_SET(init_req->options, Z_Options_scan);
405 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
406 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
407 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
412 std::list<std::string> dblist;
413 mp_util::split_zurl(zurl, host, dblist);
414 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
417 z3950_package.request() = apdu;
419 // send Z3950 package
420 z3950_package.move();
422 // dead Z3950 backend detection
423 if (z3950_package.session().is_closed())
425 yaz_add_srw_diagnostic(odr_en,
426 &(sru_pdu_res->u.response->diagnostics),
427 &(sru_pdu_res->u.response->num_diagnostics),
428 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
432 // check successful initResponse
433 Z_GDU *z3950_gdu = z3950_package.response().get();
435 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
436 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
437 && *z3950_gdu->u.z3950->u.initResponse->result)
440 yaz_add_srw_diagnostic(odr_en,
441 &(sru_pdu_res->u.response->diagnostics),
442 &(sru_pdu_res->u.response->num_diagnostics),
443 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
448 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
450 // prepare and close Z3950 package
451 Package z3950_package(package.session(), package.origin());
452 z3950_package.copy_filter(package);
453 z3950_package.session().close();
456 //mp::odr odr_en(ODR_ENCODE);
457 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
458 //z3950_package.request() = apdu;
460 z3950_package.move();
462 // check successful close response
463 //Z_GDU *z3950_gdu = z3950_package.response().get();
464 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
465 // && z3950_gdu->u.z3950->which == Z_APDU_close)
468 if (z3950_package.session().is_closed())
475 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
477 Z_SRW_PDU *sru_pdu_res,
478 Z_SRW_searchRetrieveRequest
480 std::string zurl) const
483 assert(sru_pdu_res->u.response);
485 Package z3950_package(package.session(), package.origin());
486 z3950_package.copy_filter(package);
488 //add stuff in z3950 apdu
489 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
490 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
492 // RecordSyntax will always be XML
493 z_searchRequest->preferredRecordSyntax
494 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
496 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
497 &z_searchRequest->num_databaseNames,
498 &z_searchRequest->databaseNames))
500 z_searchRequest->num_databaseNames = 1;
501 z_searchRequest->databaseNames = (char**)
502 odr_malloc(odr_en, sizeof(char *));
504 if (sr_req->database)
505 z_searchRequest->databaseNames[0]
506 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
508 z_searchRequest->databaseNames[0]
509 = odr_strdup(odr_en, "Default");
513 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
514 z_searchRequest->query = z_query;
516 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
519 yaz_add_srw_diagnostic(odr_en,
520 &(sru_pdu_res->u.response->diagnostics),
521 &(sru_pdu_res->u.response->num_diagnostics),
527 z3950_package.request() = apdu;
529 // send Z39.50 package off to backend
530 z3950_package.move();
533 Z_GDU *z3950_gdu = z3950_package.response().get();
535 //TODO: check success condition
536 //int yaz_diag_bib1_to_srw (int bib1_code);
537 //int yaz_diag_srw_to_bib1(int srw_code);
538 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
540 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
541 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
542 || !z3950_gdu->u.z3950->u.searchResponse
543 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
545 yaz_add_srw_diagnostic(odr_en,
546 &(sru_pdu_res->u.response->diagnostics),
547 &(sru_pdu_res->u.response->num_diagnostics),
548 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
552 // everything fine, continuing
553 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
555 // checking non surrogate diagnostics in Z3950 search response package
556 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
562 // Finally, roll on and srw'fy number of records
563 sru_pdu_res->u.response->numberOfRecords
564 = odr_intdup(odr_en, *sr->resultCount);
566 // srw'fy nextRecordPosition
567 //sru_pdu_res->u.response->nextRecordPosition
568 // = (int *) odr_malloc(odr_en, sizeof(int *));
569 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
575 yf::SRUtoZ3950::Impl::z3950_present_request(
576 mp::Package &package,
578 Z_SRW_PDU *sru_pdu_res,
579 const Z_SRW_searchRetrieveRequest *sr_req)
582 assert(sru_pdu_res->u.response);
589 if (sr_req->maximumRecords)
590 max_recs = *sr_req->maximumRecords;
591 if (sr_req->startRecord)
592 start = *sr_req->startRecord;
594 // no need to work if nobody wants record ..
598 bool send_z3950_present = true;
600 // recordXPath unsupported.
601 if (sr_req->recordXPath)
603 send_z3950_present = false;
604 yaz_add_srw_diagnostic(odr_en,
605 &(sru_pdu_res->u.response->diagnostics),
606 &(sru_pdu_res->u.response->num_diagnostics),
607 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
610 // resultSetTTL unsupported.
611 // resultSetIdleTime in response
612 if (sr_req->resultSetTTL)
614 send_z3950_present = false;
615 yaz_add_srw_diagnostic(odr_en,
616 &(sru_pdu_res->u.response->diagnostics),
617 &(sru_pdu_res->u.response->num_diagnostics),
618 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
622 if (sr_req->sort_type != Z_SRW_sort_type_none)
624 send_z3950_present = false;
625 yaz_add_srw_diagnostic(odr_en,
626 &(sru_pdu_res->u.response->diagnostics),
627 &(sru_pdu_res->u.response->num_diagnostics),
628 YAZ_SRW_SORT_UNSUPP, 0);
631 // start record requested negative, or larger than number of records
632 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
634 send_z3950_present = false;
635 yaz_add_srw_diagnostic(odr_en,
636 &(sru_pdu_res->u.response->diagnostics),
637 &(sru_pdu_res->u.response->num_diagnostics),
638 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
641 // maximumRecords requested negative
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_UNSUPP_PARAMETER_VALUE,
652 // exit on all these above diagnostics
653 if (!send_z3950_present)
656 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
657 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
659 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
660 sru_res->records = (Z_SRW_record *)
661 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
663 while (num < max_recs)
665 // now packaging the z3950 present request
666 Package z3950_package(package.session(), package.origin());
667 z3950_package.copy_filter(package);
668 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
670 assert(apdu->u.presentRequest);
672 *apdu->u.presentRequest->resultSetStartPoint = start + num;
673 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
675 // set response packing to be same as "request" packing..
676 int record_packing = Z_SRW_recordPacking_XML;
677 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
678 record_packing = Z_SRW_recordPacking_string;
680 // RecordSyntax will always be XML
681 apdu->u.presentRequest->preferredRecordSyntax
682 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
684 // z3950'fy record schema
685 if (sr_req->recordSchema)
687 apdu->u.presentRequest->recordComposition
688 = (Z_RecordComposition *)
689 odr_malloc(odr_en, sizeof(Z_RecordComposition));
690 apdu->u.presentRequest->recordComposition->which
691 = Z_RecordComp_simple;
692 apdu->u.presentRequest->recordComposition->u.simple
693 = mp_util::build_esn_from_schema(odr_en,
695 sr_req->recordSchema);
698 // attaching Z3950 package to filter chain
699 z3950_package.request() = apdu;
701 // sending Z30.50 present request
702 z3950_package.move();
704 //check successful Z3950 present response
705 Z_GDU *z3950_gdu = z3950_package.response().get();
706 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
707 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
708 || !z3950_gdu->u.z3950->u.presentResponse)
711 yaz_add_srw_diagnostic(odr_en,
712 &(sru_pdu_res->u.response->diagnostics),
713 &(sru_pdu_res->u.response->num_diagnostics),
714 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
717 // everything fine, continuing
719 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
721 // checking non surrogate diagnostics in Z3950 present response package
722 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
726 // if anything but database or surrogate diagnostics, stop
727 if (!pr->records || pr->records->which != Z_Records_DBOSD)
731 // inserting all records
733 pr->records->u.databaseOrSurDiagnostics->num_records;
734 for (int i = 0; i < returned_recs; i++)
736 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
737 Z_NamePlusRecord *npr
738 = pr->records->u.databaseOrSurDiagnostics->records[i];
740 sru_res->records[i + num].recordPacking = record_packing;
742 if (npr->which == Z_NamePlusRecord_databaseRecord &&
743 npr->u.databaseRecord->direct_reference
744 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
747 // got XML record back
748 Z_External *r = npr->u.databaseRecord;
749 sru_res->records[i + num].recordPosition =
750 odr_intdup(odr_en, position);
751 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
752 sru_res->records[i + num].recordData_buf
753 = odr_strdupn(odr_en,
754 (const char *)r->u.octet_aligned->buf,
755 r->u.octet_aligned->len);
756 sru_res->records[i + num].recordData_len
757 = r->u.octet_aligned->len;
761 // not XML or no database record at all
762 yaz_mk_sru_surrogate(
763 odr_en, sru_res->records + i + num, position,
764 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
767 num += returned_recs;
770 sru_res->num_records = num;
771 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
772 sru_res->nextRecordPosition =
773 odr_intdup(odr_en, start + num);
777 int yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
778 const Z_SRW_searchRetrieveRequest *req
781 if (req->query_type == Z_SRW_query_type_cql)
783 Z_External *ext = (Z_External *)
784 odr_malloc(odr_en, sizeof(*ext));
785 ext->direct_reference =
786 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
787 ext->indirect_reference = 0;
789 ext->which = Z_External_CQL;
790 ext->u.cql = odr_strdup(odr_en, req->query.cql);
792 z_query->which = Z_Query_type_104;
793 z_query->u.type_104 = ext;
797 if (req->query_type == Z_SRW_query_type_pqf)
799 Z_RPNQuery *RPNquery;
800 YAZ_PQF_Parser pqf_parser;
802 pqf_parser = yaz_pqf_create ();
804 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
806 yaz_pqf_destroy(pqf_parser);
809 return YAZ_SRW_QUERY_SYNTAX_ERROR;
811 z_query->which = Z_Query_type_1;
812 z_query->u.type_1 = RPNquery;
816 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
821 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
822 Z_SRW_searchRetrieveResponse
824 Z_Records *records) const
826 // checking non surrogate diagnostics in Z3950 present response package
828 && records->which == Z_Records_NSD
829 && records->u.nonSurrogateDiagnostic)
831 z3950_to_srw_diag(odr_en, sru_res,
832 records->u.nonSurrogateDiagnostic);
840 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
841 Z_SRW_searchRetrieveResponse *sru_res,
842 Z_DefaultDiagFormat *ddf) const
844 int bib1_code = *ddf->condition;
845 sru_res->num_diagnostics = 1;
846 sru_res->diagnostics = (Z_SRW_diagnostic *)
847 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
848 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
849 yaz_diag_bib1_to_srw(bib1_code),
856 static mp::filter::Base* filter_creator()
858 return new mp::filter::SRUtoZ3950;
862 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
873 * c-file-style: "Stroustrup"
874 * indent-tabs-mode: nil
876 * vim: shiftwidth=4 tabstop=8 expandtab