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);
233 // filter acts as sink for SRU explain requests
234 if (sru_pdu_req->which == Z_SRW_explain_request)
236 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
237 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
239 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
240 sruinfo, explainnode, er_req);
242 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
243 && sru_pdu_req->u.request)
245 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
247 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
249 // checking that we have a query
250 ok = mp_util::check_sru_query_exists(package, odr_en,
251 sru_pdu_res, sr_req);
253 if (ok && z3950_init_request(package, odr_en,
254 zurl, sru_pdu_res, sru_pdu_req))
256 ok = z3950_search_request(package, odr_en,
257 sru_pdu_res, sr_req, zurl);
260 && sru_pdu_res->u.response->numberOfRecords
261 && *(sru_pdu_res->u.response->numberOfRecords))
263 ok = z3950_present_request(package, odr_en,
266 z3950_close_request(package);
271 else if (sru_pdu_req->which == Z_SRW_scan_request
272 && sru_pdu_req->u.scan_request)
274 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
276 // we do not do scan at the moment, therefore issuing a diagnostic
277 yaz_add_srw_diagnostic(odr_en,
278 &(sru_pdu_res->u.scan_response->diagnostics),
279 &(sru_pdu_res->u.scan_response->num_diagnostics),
280 YAZ_SRW_UNSUPP_OPERATION, "scan");
284 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
286 yaz_add_srw_diagnostic(odr_en,
287 &(sru_pdu_res->u.explain_response->diagnostics),
288 &(sru_pdu_res->u.explain_response->num_diagnostics),
289 YAZ_SRW_UNSUPP_OPERATION, "unknown");
294 package.reset_log(l);
297 WRBUF w = wrbuf_alloc();
299 wrbuf_puts(w, "<log>\n");
300 wrbuf_xmlputs(w, l.c_str());
301 wrbuf_puts(w, "</log>");
303 sru_pdu_res->extraResponseData_len = wrbuf_len(w);
304 sru_pdu_res->extraResponseData_buf = odr_strdup(odr_en, wrbuf_cstr(w));
308 // build and send SRU response
309 mp_util::build_sru_response(package, odr_en, soap,
310 sru_pdu_res, charset, stylesheet);
314 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
316 Z_GDU *zgdu_req = package.request().get();
318 // ignoring all non HTTP_Request packages
319 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request))
325 // only working on HTTP_Request packages now
327 // see if HTTP request is already being executed..
328 // we consider only the SRU - GET case..
329 if (zgdu_req->u.HTTP_Request->content_len == 0)
331 const char *path = zgdu_req->u.HTTP_Request->path;
332 boost::mutex::scoped_lock lock(m_mutex);
335 ActiveUrlMap::iterator it = m_active_urls.find(path);
336 if (it == m_active_urls.end())
338 m_active_urls[path] = 1;
341 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
342 m_cond_url_ready.wait(lock);
345 sru(package, zgdu_req);
346 if (zgdu_req->u.HTTP_Request->content_len == 0)
348 const char *path = zgdu_req->u.HTTP_Request->path;
349 boost::mutex::scoped_lock lock(m_mutex);
351 ActiveUrlMap::iterator it = m_active_urls.find(path);
353 m_active_urls.erase(it);
354 m_cond_url_ready.notify_all();
360 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
363 Z_SRW_PDU *sru_pdu_res,
364 const Z_SRW_PDU *sru_pdu_req) const
366 // prepare Z3950 package
367 Package z3950_package(package.session(), package.origin());
368 z3950_package.copy_filter(package);
370 // set initRequest APDU
371 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
372 Z_InitRequest *init_req = apdu->u.initRequest;
374 Z_IdAuthentication *auth = NULL;
375 if (sru_pdu_req->username && !sru_pdu_req->password)
377 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
378 auth->which = Z_IdAuthentication_open;
379 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
381 else if (sru_pdu_req->username && sru_pdu_req->password)
383 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
384 auth->which = Z_IdAuthentication_idPass;
385 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
386 auth->u.idPass->groupId = NULL;
387 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
388 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
391 init_req->idAuthentication = auth;
393 *init_req->preferredMessageSize = 10*1024*1024;
394 *init_req->maximumRecordSize = 10*1024*1024;
396 ODR_MASK_SET(init_req->options, Z_Options_search);
397 ODR_MASK_SET(init_req->options, Z_Options_present);
398 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
399 ODR_MASK_SET(init_req->options, Z_Options_scan);
401 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
402 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
403 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
408 std::list<std::string> dblist;
409 mp_util::split_zurl(zurl, host, dblist);
410 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
413 z3950_package.request() = apdu;
415 // send Z3950 package
416 z3950_package.move();
418 // dead Z3950 backend detection
419 if (z3950_package.session().is_closed())
421 yaz_add_srw_diagnostic(odr_en,
422 &(sru_pdu_res->u.response->diagnostics),
423 &(sru_pdu_res->u.response->num_diagnostics),
424 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
428 // check successful initResponse
429 Z_GDU *z3950_gdu = z3950_package.response().get();
431 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
432 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
433 && *z3950_gdu->u.z3950->u.initResponse->result)
436 yaz_add_srw_diagnostic(odr_en,
437 &(sru_pdu_res->u.response->diagnostics),
438 &(sru_pdu_res->u.response->num_diagnostics),
439 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
444 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
446 // prepare and close Z3950 package
447 Package z3950_package(package.session(), package.origin());
448 z3950_package.copy_filter(package);
449 z3950_package.session().close();
452 //mp::odr odr_en(ODR_ENCODE);
453 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
454 //z3950_package.request() = apdu;
456 z3950_package.move();
458 // check successful close response
459 //Z_GDU *z3950_gdu = z3950_package.response().get();
460 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
461 // && z3950_gdu->u.z3950->which == Z_APDU_close)
464 if (z3950_package.session().is_closed())
471 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
473 Z_SRW_PDU *sru_pdu_res,
474 Z_SRW_searchRetrieveRequest
476 std::string zurl) const
479 assert(sru_pdu_res->u.response);
481 Package z3950_package(package.session(), package.origin());
482 z3950_package.copy_filter(package);
484 //add stuff in z3950 apdu
485 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
486 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
488 // RecordSyntax will always be XML
489 z_searchRequest->preferredRecordSyntax
490 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
492 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
493 &z_searchRequest->num_databaseNames,
494 &z_searchRequest->databaseNames))
496 z_searchRequest->num_databaseNames = 1;
497 z_searchRequest->databaseNames = (char**)
498 odr_malloc(odr_en, sizeof(char *));
500 if (sr_req->database)
501 z_searchRequest->databaseNames[0]
502 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
504 z_searchRequest->databaseNames[0]
505 = odr_strdup(odr_en, "Default");
509 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
510 z_searchRequest->query = z_query;
512 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
515 yaz_add_srw_diagnostic(odr_en,
516 &(sru_pdu_res->u.response->diagnostics),
517 &(sru_pdu_res->u.response->num_diagnostics),
523 z3950_package.request() = apdu;
525 // send Z39.50 package off to backend
526 z3950_package.move();
529 Z_GDU *z3950_gdu = z3950_package.response().get();
531 //TODO: check success condition
532 //int yaz_diag_bib1_to_srw (int bib1_code);
533 //int yaz_diag_srw_to_bib1(int srw_code);
534 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
536 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
537 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
538 || !z3950_gdu->u.z3950->u.searchResponse
539 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
541 yaz_add_srw_diagnostic(odr_en,
542 &(sru_pdu_res->u.response->diagnostics),
543 &(sru_pdu_res->u.response->num_diagnostics),
544 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
548 // everything fine, continuing
549 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
551 // checking non surrogate diagnostics in Z3950 search response package
552 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
558 // Finally, roll on and srw'fy number of records
559 sru_pdu_res->u.response->numberOfRecords
560 = odr_intdup(odr_en, *sr->resultCount);
562 // srw'fy nextRecordPosition
563 //sru_pdu_res->u.response->nextRecordPosition
564 // = (int *) odr_malloc(odr_en, sizeof(int *));
565 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
571 yf::SRUtoZ3950::Impl::z3950_present_request(
572 mp::Package &package,
574 Z_SRW_PDU *sru_pdu_res,
575 const Z_SRW_searchRetrieveRequest *sr_req)
578 assert(sru_pdu_res->u.response);
585 if (sr_req->maximumRecords)
586 max_recs = *sr_req->maximumRecords;
587 if (sr_req->startRecord)
588 start = *sr_req->startRecord;
590 // no need to work if nobody wants record ..
594 bool send_z3950_present = true;
596 // recordXPath unsupported.
597 if (sr_req->recordXPath)
599 send_z3950_present = false;
600 yaz_add_srw_diagnostic(odr_en,
601 &(sru_pdu_res->u.response->diagnostics),
602 &(sru_pdu_res->u.response->num_diagnostics),
603 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
606 // resultSetTTL unsupported.
607 // resultSetIdleTime in response
608 if (sr_req->resultSetTTL)
610 send_z3950_present = false;
611 yaz_add_srw_diagnostic(odr_en,
612 &(sru_pdu_res->u.response->diagnostics),
613 &(sru_pdu_res->u.response->num_diagnostics),
614 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
618 if (sr_req->sort_type != Z_SRW_sort_type_none)
620 send_z3950_present = false;
621 yaz_add_srw_diagnostic(odr_en,
622 &(sru_pdu_res->u.response->diagnostics),
623 &(sru_pdu_res->u.response->num_diagnostics),
624 YAZ_SRW_SORT_UNSUPP, 0);
627 // start record requested negative, or larger than number of records
628 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
630 send_z3950_present = false;
631 yaz_add_srw_diagnostic(odr_en,
632 &(sru_pdu_res->u.response->diagnostics),
633 &(sru_pdu_res->u.response->num_diagnostics),
634 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
637 // maximumRecords requested negative
640 send_z3950_present = false;
641 yaz_add_srw_diagnostic(odr_en,
642 &(sru_pdu_res->u.response->diagnostics),
643 &(sru_pdu_res->u.response->num_diagnostics),
644 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
648 // exit on all these above diagnostics
649 if (!send_z3950_present)
652 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
653 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
655 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
656 sru_res->records = (Z_SRW_record *)
657 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
659 while (num < max_recs)
661 // now packaging the z3950 present request
662 Package z3950_package(package.session(), package.origin());
663 z3950_package.copy_filter(package);
664 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
666 assert(apdu->u.presentRequest);
668 *apdu->u.presentRequest->resultSetStartPoint = start + num;
669 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
671 // set response packing to be same as "request" packing..
672 int record_packing = Z_SRW_recordPacking_XML;
673 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
674 record_packing = Z_SRW_recordPacking_string;
676 // RecordSyntax will always be XML
677 apdu->u.presentRequest->preferredRecordSyntax
678 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
680 // z3950'fy record schema
681 if (sr_req->recordSchema)
683 apdu->u.presentRequest->recordComposition
684 = (Z_RecordComposition *)
685 odr_malloc(odr_en, sizeof(Z_RecordComposition));
686 apdu->u.presentRequest->recordComposition->which
687 = Z_RecordComp_simple;
688 apdu->u.presentRequest->recordComposition->u.simple
689 = mp_util::build_esn_from_schema(odr_en,
691 sr_req->recordSchema);
694 // attaching Z3950 package to filter chain
695 z3950_package.request() = apdu;
697 // sending Z30.50 present request
698 z3950_package.move();
700 //check successful Z3950 present response
701 Z_GDU *z3950_gdu = z3950_package.response().get();
702 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
703 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
704 || !z3950_gdu->u.z3950->u.presentResponse)
707 yaz_add_srw_diagnostic(odr_en,
708 &(sru_pdu_res->u.response->diagnostics),
709 &(sru_pdu_res->u.response->num_diagnostics),
710 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
713 // everything fine, continuing
715 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
717 // checking non surrogate diagnostics in Z3950 present response package
718 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
722 // if anything but database or surrogate diagnostics, stop
723 if (!pr->records || pr->records->which != Z_Records_DBOSD)
727 // inserting all records
729 pr->records->u.databaseOrSurDiagnostics->num_records;
730 for (int i = 0; i < returned_recs; i++)
732 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
733 Z_NamePlusRecord *npr
734 = pr->records->u.databaseOrSurDiagnostics->records[i];
736 sru_res->records[i + num].recordPacking = record_packing;
738 if (npr->which == Z_NamePlusRecord_databaseRecord &&
739 npr->u.databaseRecord->direct_reference
740 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
743 // got XML record back
744 Z_External *r = npr->u.databaseRecord;
745 sru_res->records[i + num].recordPosition =
746 odr_intdup(odr_en, position);
747 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
748 sru_res->records[i + num].recordData_buf
749 = odr_strdupn(odr_en,
750 (const char *)r->u.octet_aligned->buf,
751 r->u.octet_aligned->len);
752 sru_res->records[i + num].recordData_len
753 = r->u.octet_aligned->len;
757 // not XML or no database record at all
758 yaz_mk_sru_surrogate(
759 odr_en, sru_res->records + i + num, position,
760 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
763 num += returned_recs;
766 sru_res->num_records = num;
767 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
768 sru_res->nextRecordPosition =
769 odr_intdup(odr_en, start + num);
773 int yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
774 const Z_SRW_searchRetrieveRequest *req
777 if (req->query_type == Z_SRW_query_type_cql)
779 Z_External *ext = (Z_External *)
780 odr_malloc(odr_en, sizeof(*ext));
781 ext->direct_reference =
782 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
783 ext->indirect_reference = 0;
785 ext->which = Z_External_CQL;
786 ext->u.cql = odr_strdup(odr_en, req->query.cql);
788 z_query->which = Z_Query_type_104;
789 z_query->u.type_104 = ext;
793 if (req->query_type == Z_SRW_query_type_pqf)
795 Z_RPNQuery *RPNquery;
796 YAZ_PQF_Parser pqf_parser;
798 pqf_parser = yaz_pqf_create ();
800 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
802 yaz_pqf_destroy(pqf_parser);
805 return YAZ_SRW_QUERY_SYNTAX_ERROR;
807 z_query->which = Z_Query_type_1;
808 z_query->u.type_1 = RPNquery;
812 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
817 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
818 Z_SRW_searchRetrieveResponse
820 Z_Records *records) const
822 // checking non surrogate diagnostics in Z3950 present response package
824 && records->which == Z_Records_NSD
825 && records->u.nonSurrogateDiagnostic)
827 z3950_to_srw_diag(odr_en, sru_res,
828 records->u.nonSurrogateDiagnostic);
836 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
837 Z_SRW_searchRetrieveResponse *sru_res,
838 Z_DefaultDiagFormat *ddf) const
840 int bib1_code = *ddf->condition;
841 sru_res->num_diagnostics = 1;
842 sru_res->diagnostics = (Z_SRW_diagnostic *)
843 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
844 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
845 yaz_diag_bib1_to_srw(bib1_code),
852 static mp::filter::Base* filter_creator()
854 return new mp::filter::SRUtoZ3950;
858 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
869 * c-file-style: "Stroustrup"
870 * indent-tabs-mode: nil
872 * vim: shiftwidth=4 tabstop=8 expandtab