1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2009 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
24 #include "package.hpp"
26 #include "gduutil.hpp"
27 #include "sru_util.hpp"
28 #include "filter_sru_to_z3950.hpp"
31 #include <yaz/z-core.h>
33 #include <yaz/pquery.h>
34 #include <yaz/oid_db.h>
37 #include <boost/thread/mutex.hpp>
38 #include <boost/thread/condition.hpp>
46 namespace mp = metaproxy_1;
47 namespace mp_util = metaproxy_1::util;
48 namespace yf = mp::filter;
50 namespace metaproxy_1 {
52 class SRUtoZ3950::Impl {
54 void configure(const xmlNode *xmlnode);
55 void process(metaproxy_1::Package &package);
57 std::map<std::string, const xmlNode *> m_database_explain;
59 typedef std::map<std::string, int> ActiveUrlMap;
62 boost::condition m_cond_url_ready;
63 ActiveUrlMap m_active_urls;
65 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
66 bool z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
67 const Z_SRW_searchRetrieveRequest *req
70 bool z3950_init_request(mp::Package &package,
73 Z_SRW_PDU *sru_pdu_res,
74 const Z_SRW_PDU *sru_pdu_req
77 bool z3950_close_request(mp::Package &package) const;
79 bool z3950_search_request(
82 Z_SRW_PDU *sru_pdu_res,
83 Z_SRW_searchRetrieveRequest const *sr_req,
84 std::string zurl) const;
86 bool z3950_present_request(
89 Z_SRW_PDU *sru_pdu_res,
90 Z_SRW_searchRetrieveRequest const *sr_req) const;
92 bool z3950_scan_request(mp::Package &package,
94 Z_SRW_PDU *sru_pdu_res,
98 bool z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
99 Z_SRW_searchRetrieveResponse *srw_res,
100 Z_Records *records) const;
102 int z3950_to_srw_diag(mp::odr &odr_en,
103 Z_SRW_searchRetrieveResponse *srw_res,
104 Z_DefaultDiagFormat *ddf) const;
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)
121 m_p->configure(xmlnode);
124 void yf::SRUtoZ3950::process(mp::Package &package) const
126 m_p->process(package);
129 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
131 const xmlNode * dbnode;
133 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next){
134 if (dbnode->type != XML_ELEMENT_NODE)
137 std::string database;
138 mp::xml::check_element_mp(dbnode, "database");
140 for (struct _xmlAttr *attr = dbnode->properties;
141 attr; attr = attr->next){
143 mp::xml::check_attribute(attr, "", "name");
144 database = mp::xml::get_text(attr);
146 const xmlNode *explainnode;
147 for (explainnode = dbnode->children;
148 explainnode; explainnode = explainnode->next){
149 if (explainnode->type != XML_ELEMENT_NODE)
154 // assigning explain node to database name - no check yet
155 m_database_explain.insert(std::make_pair(database, explainnode));
160 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
164 mp::odr odr_de(ODR_DECODE);
165 Z_SRW_PDU *sru_pdu_req = 0;
167 mp::odr odr_en(ODR_ENCODE);
168 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
170 // determine database with the HTTP header information only
171 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
172 std::map<std::string, const xmlNode *>::iterator idbexp;
173 idbexp = m_database_explain.find(sruinfo.database);
175 // assign explain config XML DOM node if database is known
176 const xmlNode *explainnode = 0;
177 if (idbexp != m_database_explain.end()){
178 explainnode = idbexp->second;
180 // just moving package if database is not known
187 // decode SRU request
190 char *stylesheet = 0;
192 // filter acts as sink for non-valid SRU requests
193 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
195 charset, stylesheet)))
199 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
200 sruinfo, explainnode);
201 mp_util::build_sru_response(package, odr_en, soap,
202 sru_pdu_res, charset, stylesheet);
206 metaproxy_1::odr odr;
208 odr.create_HTTP_Response(package.session(),
209 zgdu_req->u.HTTP_Request, 400);
210 package.response() = zgdu_res;
216 Z_SRW_extra_arg *arg;
218 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
219 if (!strcmp(arg->name, "x-target"))
221 zurl = std::string(arg->value);
223 else if (!strcmp(arg->name, "x-max-sockets"))
225 package.origin().set_max_sockets(atoi(arg->value));
229 // filter acts as sink for SRU explain requests
230 if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
232 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
233 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
235 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
236 sruinfo, explainnode, er_req);
239 && sru_pdu_req->which == Z_SRW_searchRetrieve_request
240 && sru_pdu_req->u.request)
242 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
244 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
246 // checking that we have a query
247 ok = mp_util::check_sru_query_exists(package, odr_en,
248 sru_pdu_res, sr_req);
250 if (ok && z3950_init_request(package, odr_en,
251 zurl, sru_pdu_res, sru_pdu_req))
253 ok = z3950_search_request(package, odr_en,
254 sru_pdu_res, sr_req, zurl);
257 && sru_pdu_res->u.response->numberOfRecords
258 && *(sru_pdu_res->u.response->numberOfRecords)
259 && sr_req->maximumRecords
260 && *(sr_req->maximumRecords))
262 ok = z3950_present_request(package, odr_en,
265 z3950_close_request(package);
271 && sru_pdu_req->which == Z_SRW_scan_request
272 && sru_pdu_req->u.scan_request)
274 Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
276 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
278 // we do not do scan at the moment, therefore issuing a diagnostic
279 yaz_add_srw_diagnostic(odr_en,
280 &(sru_pdu_res->u.scan_response->diagnostics),
281 &(sru_pdu_res->u.scan_response->num_diagnostics),
282 YAZ_SRW_UNSUPP_OPERATION, "scan");
284 // to be used when we do scan
285 if (false && z3950_init_request(package, odr_en, zurl, sru_pdu_res,
288 z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
289 z3950_close_request(package);
294 //std::cout << "SRU OPERATION NOT SUPPORTED \n";
295 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
297 // TODO: make nice diagnostic return package
301 // build and send SRU response
302 mp_util::build_sru_response(package, odr_en, soap,
303 sru_pdu_res, charset, stylesheet);
307 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
309 Z_GDU *zgdu_req = package.request().get();
311 // ignoring all non HTTP_Request packages
312 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
317 // only working on HTTP_Request packages now
319 // see if HTTP request is already being executed..
320 // we consider only the SRU - GET case..
321 if (zgdu_req->u.HTTP_Request->content_len == 0)
323 const char *path = zgdu_req->u.HTTP_Request->path;
324 boost::mutex::scoped_lock lock(m_mutex);
327 ActiveUrlMap::iterator it = m_active_urls.find(path);
328 if (it == m_active_urls.end())
330 m_active_urls[path] = 1;
333 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
334 m_cond_url_ready.wait(lock);
337 sru(package, zgdu_req);
338 if (zgdu_req->u.HTTP_Request->content_len == 0)
340 const char *path = zgdu_req->u.HTTP_Request->path;
341 boost::mutex::scoped_lock lock(m_mutex);
343 ActiveUrlMap::iterator it = m_active_urls.find(path);
345 m_active_urls.erase(it);
346 m_cond_url_ready.notify_all();
352 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
355 Z_SRW_PDU *sru_pdu_res,
356 const Z_SRW_PDU *sru_pdu_req) const
358 // prepare Z3950 package
359 Package z3950_package(package.session(), package.origin());
360 z3950_package.copy_filter(package);
362 // set initRequest APDU
363 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
364 Z_InitRequest *init_req = apdu->u.initRequest;
366 Z_IdAuthentication *auth = NULL;
367 if (sru_pdu_req->username && !sru_pdu_req->password)
369 yaz_log(YLOG_LOG, "username: %s\n", sru_pdu_req->username);
370 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
371 auth->which = Z_IdAuthentication_open;
372 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
374 else if (sru_pdu_req->username && sru_pdu_req->password)
376 yaz_log(YLOG_LOG, "username/password: %s/%s\n",
377 sru_pdu_req->username, sru_pdu_req->password);
378 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
379 auth->which = Z_IdAuthentication_idPass;
380 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
381 auth->u.idPass->groupId = NULL;
382 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
383 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
386 init_req->idAuthentication = auth;
388 //TODO: add user name in apdu
389 //TODO: add user passwd in apdu
390 //init_req->idAuthentication = org_init->idAuthentication;
391 //init_req->implementationId = "IDxyz";
392 //init_req->implementationName = "NAMExyz";
393 //init_req->implementationVersion = "VERSIONxyz";
395 ODR_MASK_SET(init_req->options, Z_Options_search);
396 ODR_MASK_SET(init_req->options, Z_Options_present);
397 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
398 ODR_MASK_SET(init_req->options, Z_Options_scan);
400 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
401 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
402 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
407 std::list<std::string> dblist;
408 mp_util::split_zurl(zurl, host, dblist);
409 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
412 z3950_package.request() = apdu;
414 // send Z3950 package
415 z3950_package.move();
417 // dead Z3950 backend detection
418 if (z3950_package.session().is_closed()){
419 yaz_add_srw_diagnostic(odr_en,
420 &(sru_pdu_res->u.response->diagnostics),
421 &(sru_pdu_res->u.response->num_diagnostics),
422 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
426 // check successful initResponse
427 Z_GDU *z3950_gdu = z3950_package.response().get();
429 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
430 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
431 && *z3950_gdu->u.z3950->u.initResponse->result)
434 yaz_add_srw_diagnostic(odr_en,
435 &(sru_pdu_res->u.response->diagnostics),
436 &(sru_pdu_res->u.response->num_diagnostics),
437 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
442 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
444 // prepare and close Z3950 package
445 Package z3950_package(package.session(), package.origin());
446 z3950_package.copy_filter(package);
447 z3950_package.session().close();
450 //mp::odr odr_en(ODR_ENCODE);
451 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
452 //z3950_package.request() = apdu;
454 z3950_package.move();
456 // check successful close response
457 //Z_GDU *z3950_gdu = z3950_package.response().get();
458 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
459 // && z3950_gdu->u.z3950->which == Z_APDU_close)
462 if (z3950_package.session().is_closed()){
468 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
470 Z_SRW_PDU *sru_pdu_res,
471 Z_SRW_searchRetrieveRequest
473 std::string zurl) const
476 assert(sru_pdu_res->u.response);
478 Package z3950_package(package.session(), package.origin());
479 z3950_package.copy_filter(package);
481 //add stuff in z3950 apdu
482 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
483 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
486 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
487 &z_searchRequest->num_databaseNames,
488 &z_searchRequest->databaseNames))
490 z_searchRequest->num_databaseNames = 1;
491 z_searchRequest->databaseNames = (char**)
492 odr_malloc(odr_en, sizeof(char *));
494 if (sr_req->database)
495 z_searchRequest->databaseNames[0]
496 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
498 z_searchRequest->databaseNames[0]
499 = odr_strdup(odr_en, "Default");
503 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
504 z_searchRequest->query = z_query;
506 if (!z3950_build_query(odr_en, z_query, sr_req))
508 yaz_add_srw_diagnostic(odr_en,
509 &(sru_pdu_res->u.response->diagnostics),
510 &(sru_pdu_res->u.response->num_diagnostics),
515 z3950_package.request() = apdu;
517 // send Z39.50 package off to backend
518 z3950_package.move();
521 Z_GDU *z3950_gdu = z3950_package.response().get();
523 //TODO: check success condition
524 //int yaz_diag_bib1_to_srw (int bib1_code);
525 //int yaz_diag_srw_to_bib1(int srw_code);
526 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
528 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
529 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
530 || !z3950_gdu->u.z3950->u.searchResponse
531 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
533 yaz_add_srw_diagnostic(odr_en,
534 &(sru_pdu_res->u.response->diagnostics),
535 &(sru_pdu_res->u.response->num_diagnostics),
540 // everything fine, continuing
541 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
543 // checking non surrogate diagnostics in Z3950 search response package
544 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
550 // Finally, roll on and srw'fy number of records
551 sru_pdu_res->u.response->numberOfRecords
552 = (int *) odr_malloc(odr_en, sizeof(int *));
553 *(sru_pdu_res->u.response->numberOfRecords) = *(sr->resultCount);
555 // srw'fy nextRecordPosition
556 //sru_pdu_res->u.response->nextRecordPosition
557 // = (int *) odr_malloc(odr_en, sizeof(int *));
558 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
564 yf::SRUtoZ3950::Impl::z3950_present_request(mp::Package &package,
566 Z_SRW_PDU *sru_pdu_res,
567 Z_SRW_searchRetrieveRequest
571 assert(sru_pdu_res->u.response);
578 if (sr_req->maximumRecords)
579 max_recs = *sr_req->maximumRecords;
580 if (sr_req->startRecord)
581 start = *sr_req->startRecord;
583 // no need to work if nobody wants record ..
587 bool send_z3950_present = true;
589 // recordXPath unsupported.
590 if (sr_req->recordXPath)
592 send_z3950_present = false;
593 yaz_add_srw_diagnostic(odr_en,
594 &(sru_pdu_res->u.response->diagnostics),
595 &(sru_pdu_res->u.response->num_diagnostics),
596 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
599 // resultSetTTL unsupported.
600 // resultSetIdleTime in response
601 if (sr_req->resultSetTTL)
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_RESULT_SETS_UNSUPP, 0);
611 if (sr_req->sort_type != Z_SRW_sort_type_none)
613 send_z3950_present = false;
614 yaz_add_srw_diagnostic(odr_en,
615 &(sru_pdu_res->u.response->diagnostics),
616 &(sru_pdu_res->u.response->num_diagnostics),
617 YAZ_SRW_SORT_UNSUPP, 0);
620 // start record requested negative, or larger than number of records
621 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
623 send_z3950_present = false;
624 yaz_add_srw_diagnostic(odr_en,
625 &(sru_pdu_res->u.response->diagnostics),
626 &(sru_pdu_res->u.response->num_diagnostics),
627 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
630 // maximumRecords requested negative
633 send_z3950_present = false;
634 yaz_add_srw_diagnostic(odr_en,
635 &(sru_pdu_res->u.response->diagnostics),
636 &(sru_pdu_res->u.response->num_diagnostics),
637 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
641 // exit on all these above diagnostics
642 if (!send_z3950_present)
645 // now packaging the z3950 present request
646 Package z3950_package(package.session(), package.origin());
647 z3950_package.copy_filter(package);
648 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
650 assert(apdu->u.presentRequest);
652 // z3950'fy start record position
653 *apdu->u.presentRequest->resultSetStartPoint = start;
655 // z3950'fy number of records requested
656 // protect against requesting records out of range
657 *apdu->u.presentRequest->numberOfRecordsRequested
659 *sru_pdu_res->u.response->numberOfRecords - start + 1);
661 // z3950'fy recordPacking
662 int record_packing = Z_SRW_recordPacking_XML;
663 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
664 record_packing = Z_SRW_recordPacking_string;
666 // RecordSyntax will always be XML
667 apdu->u.presentRequest->preferredRecordSyntax
668 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
670 // z3950'fy record schema
671 if (sr_req->recordSchema)
673 apdu->u.presentRequest->recordComposition
674 = (Z_RecordComposition *)
675 odr_malloc(odr_en, sizeof(Z_RecordComposition));
676 apdu->u.presentRequest->recordComposition->which
677 = Z_RecordComp_simple;
678 apdu->u.presentRequest->recordComposition->u.simple
679 = mp_util::build_esn_from_schema(odr_en,
681 sr_req->recordSchema);
684 // z3950'fy time to live - flagged as diagnostics above
685 //if (sr_req->resultSetTTL)
687 // attaching Z3950 package to filter chain
688 z3950_package.request() = apdu;
690 // sending Z30.50 present request
691 z3950_package.move();
693 //check successful Z3950 present response
694 Z_GDU *z3950_gdu = z3950_package.response().get();
695 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
696 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
697 || !z3950_gdu->u.z3950->u.presentResponse)
700 yaz_add_srw_diagnostic(odr_en,
701 &(sru_pdu_res->u.response->diagnostics),
702 &(sru_pdu_res->u.response->num_diagnostics),
703 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
708 // everything fine, continuing
710 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
711 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
714 // checking non surrogate diagnostics in Z3950 present response package
715 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
721 // copy all records if existing
722 if (pr->records && pr->records->which == Z_Records_DBOSD)
724 // srw'fy number of returned records
726 = pr->records->u.databaseOrSurDiagnostics->num_records;
729 = (Z_SRW_record *) odr_malloc(odr_en,
731 * sizeof(Z_SRW_record));
734 // srw'fy nextRecordPosition
735 // next position never zero or behind the last z3950 record
736 if (pr->nextResultSetPosition
737 && *(pr->nextResultSetPosition) > 0
738 && *(pr->nextResultSetPosition)
739 <= *(sru_pdu_res->u.response->numberOfRecords))
740 sru_res->nextRecordPosition
741 = odr_intdup(odr_en, *(pr->nextResultSetPosition));
743 // inserting all records
744 for (int i = 0; i < sru_res->num_records; i++)
746 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
747 Z_NamePlusRecord *npr
748 = pr->records->u.databaseOrSurDiagnostics->records[i];
750 sru_res->records[i].recordPacking = record_packing;
752 if (npr->which == Z_NamePlusRecord_databaseRecord &&
753 npr->u.databaseRecord->direct_reference
754 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
757 // got XML record back
758 Z_External *r = npr->u.databaseRecord;
759 sru_res->records[i].recordPosition =
760 odr_intdup(odr_en, position);
761 sru_res->records[i].recordSchema = sr_req->recordSchema;
762 sru_res->records[i].recordData_buf
763 = odr_strdupn(odr_en,
764 (const char *)r->u.octet_aligned->buf,
765 r->u.octet_aligned->len);
766 sru_res->records[i].recordData_len
767 = r->u.octet_aligned->len;
771 // not XML or no database record at all
772 yaz_mk_sru_surrogate(
773 odr_en, sru_res->records + i, position,
774 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
783 yf::SRUtoZ3950::Impl::z3950_scan_request(mp::Package &package,
785 Z_SRW_PDU *sru_pdu_res,
786 Z_SRW_scanRequest const *sr_req) const
788 assert(sru_pdu_res->u.scan_response);
790 Package z3950_package(package.session(), package.origin());
791 z3950_package.copy_filter(package);
792 //mp::odr odr_en(ODR_ENCODE);
793 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_scanRequest);
795 //TODO: add stuff in apdu
796 Z_ScanRequest *z_scanRequest = apdu->u.scanRequest;
798 // database repackaging
799 z_scanRequest->num_databaseNames = 1;
800 z_scanRequest->databaseNames = (char**)
801 odr_malloc(odr_en, sizeof(char *));
802 if (sr_req->database)
803 z_scanRequest->databaseNames[0]
804 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
806 z_scanRequest->databaseNames[0]
807 = odr_strdup(odr_en, "Default");
811 // CQL or XCQL scan is not possible in Z3950, flagging a diagnostic
812 if (sr_req->query_type != Z_SRW_query_type_pqf)
814 //send_to_srw_client_error(7, "query");
818 // PQF query repackaging
819 // need to use Z_AttributesPlusTerm structure, not Z_Query
820 // this can be digget out of a
821 // Z_query->type1(Z_RPNQuery)->RPNStructure(Z_RPNStructure)
822 // ->u.simple(Z_Operand)->u.attributesPlusTerm(Z_AttributesPlusTerm )
824 //Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
825 //z_searchRequest->query = z_query;
827 //if (!z3950_build_query(odr_en, z_query,
828 // (const SRW_query&)sr_req->query,
829 // sr_req->query_type))
831 //send_to_srw_client_error(7, "query");
837 z3950_package.request() = apdu;
838 std::cout << "z3950_scan_request " << *apdu << "\n";
840 z3950_package.move();
841 //TODO: check success condition
846 bool yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
847 const Z_SRW_searchRetrieveRequest *req
850 if (req->query_type == Z_SRW_query_type_cql)
852 Z_External *ext = (Z_External *)
853 odr_malloc(odr_en, sizeof(*ext));
854 ext->direct_reference =
855 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
856 ext->indirect_reference = 0;
858 ext->which = Z_External_CQL;
859 ext->u.cql = odr_strdup(odr_en, req->query.cql);
861 z_query->which = Z_Query_type_104;
862 z_query->u.type_104 = ext;
866 if (req->query_type == Z_SRW_query_type_pqf)
868 Z_RPNQuery *RPNquery;
869 YAZ_PQF_Parser pqf_parser;
871 pqf_parser = yaz_pqf_create ();
873 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
876 std::cout << "TODO: Handeling of bad PQF\n";
877 std::cout << "TODO: Diagnostic to be send\n";
879 z_query->which = Z_Query_type_1;
880 z_query->u.type_1 = RPNquery;
882 yaz_pqf_destroy(pqf_parser);
890 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
891 Z_SRW_searchRetrieveResponse
893 Z_Records *records) const
895 // checking non surrogate diagnostics in Z3950 present response package
897 && records->which == Z_Records_NSD
898 && records->u.nonSurrogateDiagnostic)
900 z3950_to_srw_diag(odr_en, sru_res,
901 records->u.nonSurrogateDiagnostic);
909 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
910 Z_SRW_searchRetrieveResponse *sru_res,
911 Z_DefaultDiagFormat *ddf) const
913 int bib1_code = *ddf->condition;
914 sru_res->num_diagnostics = 1;
915 sru_res->diagnostics = (Z_SRW_diagnostic *)
916 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
917 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
918 yaz_diag_bib1_to_srw(bib1_code),
925 static mp::filter::Base* filter_creator()
927 return new mp::filter::SRUtoZ3950;
931 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
942 * c-file-style: "Stroustrup"
943 * indent-tabs-mode: nil
945 * vim: shiftwidth=4 tabstop=8 expandtab