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::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;
214 bool enable_package_log = false;
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));
227 else if (!strcmp(arg->name, "x-session-id"))
229 package.origin().set_custom_session(arg->value);
231 else if (!strcmp(arg->name, "x-log-enable"))
233 if (*arg->value == '1')
235 enable_package_log = true;
236 package.log_enable();
241 // filter acts as sink for SRU explain requests
242 if (sru_pdu_req->which == Z_SRW_explain_request)
244 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
245 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
247 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
248 sruinfo, explainnode, er_req);
250 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
251 && sru_pdu_req->u.request)
253 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
255 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
257 // checking that we have a query
258 ok = mp_util::check_sru_query_exists(package, odr_en,
259 sru_pdu_res, sr_req);
261 if (ok && z3950_init_request(package, odr_en,
262 zurl, sru_pdu_res, sru_pdu_req))
264 ok = z3950_search_request(package, odr_en,
265 sru_pdu_res, sr_req, zurl);
268 && sru_pdu_res->u.response->numberOfRecords
269 && *(sru_pdu_res->u.response->numberOfRecords))
271 ok = z3950_present_request(package, odr_en,
274 z3950_close_request(package);
279 else if (sru_pdu_req->which == Z_SRW_scan_request
280 && sru_pdu_req->u.scan_request)
282 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
284 // we do not do scan at the moment, therefore issuing a diagnostic
285 yaz_add_srw_diagnostic(odr_en,
286 &(sru_pdu_res->u.scan_response->diagnostics),
287 &(sru_pdu_res->u.scan_response->num_diagnostics),
288 YAZ_SRW_UNSUPP_OPERATION, "scan");
292 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
294 yaz_add_srw_diagnostic(odr_en,
295 &(sru_pdu_res->u.explain_response->diagnostics),
296 &(sru_pdu_res->u.explain_response->num_diagnostics),
297 YAZ_SRW_UNSUPP_OPERATION, "unknown");
300 if (enable_package_log)
303 package.log_reset(l);
306 WRBUF w = wrbuf_alloc();
308 wrbuf_puts(w, "<log>\n");
309 wrbuf_xmlputs(w, l.c_str());
310 wrbuf_puts(w, "</log>");
312 sru_pdu_res->extraResponseData_len = wrbuf_len(w);
313 sru_pdu_res->extraResponseData_buf =
314 odr_strdup(odr_en, wrbuf_cstr(w));
319 // build and send SRU response
320 mp_util::build_sru_response(package, odr_en, soap,
321 sru_pdu_res, charset, stylesheet);
325 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
327 Z_GDU *zgdu_req = package.request().get();
329 // ignoring all non HTTP_Request packages
330 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request))
336 // only working on HTTP_Request packages now
338 // see if HTTP request is already being executed..
339 // we consider only the SRU - GET case..
340 if (zgdu_req->u.HTTP_Request->content_len == 0)
342 const char *path = zgdu_req->u.HTTP_Request->path;
343 boost::mutex::scoped_lock lock(m_mutex);
346 ActiveUrlMap::iterator it = m_active_urls.find(path);
347 if (it == m_active_urls.end())
349 m_active_urls[path] = 1;
352 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
353 m_cond_url_ready.wait(lock);
356 sru(package, zgdu_req);
357 if (zgdu_req->u.HTTP_Request->content_len == 0)
359 const char *path = zgdu_req->u.HTTP_Request->path;
360 boost::mutex::scoped_lock lock(m_mutex);
362 ActiveUrlMap::iterator it = m_active_urls.find(path);
364 m_active_urls.erase(it);
365 m_cond_url_ready.notify_all();
371 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
374 Z_SRW_PDU *sru_pdu_res,
375 const Z_SRW_PDU *sru_pdu_req) const
377 // prepare Z3950 package
378 Package z3950_package(package.session(), package.origin());
379 z3950_package.copy_filter(package);
381 // set initRequest APDU
382 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
383 Z_InitRequest *init_req = apdu->u.initRequest;
385 Z_IdAuthentication *auth = NULL;
386 if (sru_pdu_req->username && !sru_pdu_req->password)
388 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
389 auth->which = Z_IdAuthentication_open;
390 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
392 else if (sru_pdu_req->username && sru_pdu_req->password)
394 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
395 auth->which = Z_IdAuthentication_idPass;
396 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
397 auth->u.idPass->groupId = NULL;
398 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
399 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
402 init_req->idAuthentication = auth;
404 *init_req->preferredMessageSize = 10*1024*1024;
405 *init_req->maximumRecordSize = 10*1024*1024;
407 ODR_MASK_SET(init_req->options, Z_Options_search);
408 ODR_MASK_SET(init_req->options, Z_Options_present);
409 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
410 ODR_MASK_SET(init_req->options, Z_Options_scan);
412 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
413 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
414 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
419 std::list<std::string> dblist;
420 mp_util::split_zurl(zurl, host, dblist);
421 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
424 z3950_package.request() = apdu;
426 // send Z3950 package
427 z3950_package.move();
429 // dead Z3950 backend detection
430 if (z3950_package.session().is_closed())
432 yaz_add_srw_diagnostic(odr_en,
433 &(sru_pdu_res->u.response->diagnostics),
434 &(sru_pdu_res->u.response->num_diagnostics),
435 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
439 // check successful initResponse
440 Z_GDU *z3950_gdu = z3950_package.response().get();
442 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
443 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
444 && *z3950_gdu->u.z3950->u.initResponse->result)
447 yaz_add_srw_diagnostic(odr_en,
448 &(sru_pdu_res->u.response->diagnostics),
449 &(sru_pdu_res->u.response->num_diagnostics),
450 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
455 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
457 // prepare and close Z3950 package
458 Package z3950_package(package.session(), package.origin());
459 z3950_package.copy_filter(package);
460 z3950_package.session().close();
463 //mp::odr odr_en(ODR_ENCODE);
464 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
465 //z3950_package.request() = apdu;
467 z3950_package.move();
469 // check successful close response
470 //Z_GDU *z3950_gdu = z3950_package.response().get();
471 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
472 // && z3950_gdu->u.z3950->which == Z_APDU_close)
475 if (z3950_package.session().is_closed())
482 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
484 Z_SRW_PDU *sru_pdu_res,
485 Z_SRW_searchRetrieveRequest
487 std::string zurl) const
490 assert(sru_pdu_res->u.response);
492 Package z3950_package(package.session(), package.origin());
493 z3950_package.copy_filter(package);
495 //add stuff in z3950 apdu
496 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
497 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
499 // RecordSyntax will always be XML
500 z_searchRequest->preferredRecordSyntax
501 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
503 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
504 &z_searchRequest->num_databaseNames,
505 &z_searchRequest->databaseNames))
507 z_searchRequest->num_databaseNames = 1;
508 z_searchRequest->databaseNames = (char**)
509 odr_malloc(odr_en, sizeof(char *));
511 if (sr_req->database)
512 z_searchRequest->databaseNames[0]
513 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
515 z_searchRequest->databaseNames[0]
516 = odr_strdup(odr_en, "Default");
520 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
521 z_searchRequest->query = z_query;
523 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
526 yaz_add_srw_diagnostic(odr_en,
527 &(sru_pdu_res->u.response->diagnostics),
528 &(sru_pdu_res->u.response->num_diagnostics),
534 z3950_package.request() = apdu;
536 // send Z39.50 package off to backend
537 z3950_package.move();
540 Z_GDU *z3950_gdu = z3950_package.response().get();
542 //TODO: check success condition
543 //int yaz_diag_bib1_to_srw (int bib1_code);
544 //int yaz_diag_srw_to_bib1(int srw_code);
545 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
547 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
548 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
549 || !z3950_gdu->u.z3950->u.searchResponse
550 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
552 yaz_add_srw_diagnostic(odr_en,
553 &(sru_pdu_res->u.response->diagnostics),
554 &(sru_pdu_res->u.response->num_diagnostics),
555 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
559 // everything fine, continuing
560 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
562 // checking non surrogate diagnostics in Z3950 search response package
563 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
569 // Finally, roll on and srw'fy number of records
570 sru_pdu_res->u.response->numberOfRecords
571 = odr_intdup(odr_en, *sr->resultCount);
573 // srw'fy nextRecordPosition
574 //sru_pdu_res->u.response->nextRecordPosition
575 // = (int *) odr_malloc(odr_en, sizeof(int *));
576 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
582 yf::SRUtoZ3950::Impl::z3950_present_request(
583 mp::Package &package,
585 Z_SRW_PDU *sru_pdu_res,
586 const Z_SRW_searchRetrieveRequest *sr_req)
589 assert(sru_pdu_res->u.response);
596 if (sr_req->maximumRecords)
597 max_recs = *sr_req->maximumRecords;
598 if (sr_req->startRecord)
599 start = *sr_req->startRecord;
601 // no need to work if nobody wants record ..
605 bool send_z3950_present = true;
607 // recordXPath unsupported.
608 if (sr_req->recordXPath)
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_XPATH_RETRIEVAL_UNSUPP, 0);
617 // resultSetTTL unsupported.
618 // resultSetIdleTime in response
619 if (sr_req->resultSetTTL)
621 send_z3950_present = false;
622 yaz_add_srw_diagnostic(odr_en,
623 &(sru_pdu_res->u.response->diagnostics),
624 &(sru_pdu_res->u.response->num_diagnostics),
625 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
629 if (sr_req->sort_type != Z_SRW_sort_type_none)
631 send_z3950_present = false;
632 yaz_add_srw_diagnostic(odr_en,
633 &(sru_pdu_res->u.response->diagnostics),
634 &(sru_pdu_res->u.response->num_diagnostics),
635 YAZ_SRW_SORT_UNSUPP, 0);
638 // start record requested negative, or larger than number of records
639 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
641 send_z3950_present = false;
642 yaz_add_srw_diagnostic(odr_en,
643 &(sru_pdu_res->u.response->diagnostics),
644 &(sru_pdu_res->u.response->num_diagnostics),
645 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
648 // maximumRecords requested negative
651 send_z3950_present = false;
652 yaz_add_srw_diagnostic(odr_en,
653 &(sru_pdu_res->u.response->diagnostics),
654 &(sru_pdu_res->u.response->num_diagnostics),
655 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
659 // exit on all these above diagnostics
660 if (!send_z3950_present)
663 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
664 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
666 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
667 sru_res->records = (Z_SRW_record *)
668 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
670 while (num < max_recs)
672 // now packaging the z3950 present request
673 Package z3950_package(package.session(), package.origin());
674 z3950_package.copy_filter(package);
675 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
677 assert(apdu->u.presentRequest);
679 *apdu->u.presentRequest->resultSetStartPoint = start + num;
680 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
682 // set response packing to be same as "request" packing..
683 int record_packing = Z_SRW_recordPacking_XML;
684 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
685 record_packing = Z_SRW_recordPacking_string;
687 // RecordSyntax will always be XML
688 apdu->u.presentRequest->preferredRecordSyntax
689 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
691 // z3950'fy record schema
692 if (sr_req->recordSchema)
694 apdu->u.presentRequest->recordComposition
695 = (Z_RecordComposition *)
696 odr_malloc(odr_en, sizeof(Z_RecordComposition));
697 apdu->u.presentRequest->recordComposition->which
698 = Z_RecordComp_simple;
699 apdu->u.presentRequest->recordComposition->u.simple
700 = mp_util::build_esn_from_schema(odr_en,
702 sr_req->recordSchema);
705 // attaching Z3950 package to filter chain
706 z3950_package.request() = apdu;
708 // sending Z30.50 present request
709 z3950_package.move();
711 //check successful Z3950 present response
712 Z_GDU *z3950_gdu = z3950_package.response().get();
713 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
714 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
715 || !z3950_gdu->u.z3950->u.presentResponse)
718 yaz_add_srw_diagnostic(odr_en,
719 &(sru_pdu_res->u.response->diagnostics),
720 &(sru_pdu_res->u.response->num_diagnostics),
721 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
724 // everything fine, continuing
726 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
728 // checking non surrogate diagnostics in Z3950 present response package
729 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
733 // if anything but database or surrogate diagnostics, stop
734 if (!pr->records || pr->records->which != Z_Records_DBOSD)
738 // inserting all records
740 pr->records->u.databaseOrSurDiagnostics->num_records;
741 for (int i = 0; i < returned_recs; i++)
743 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
744 Z_NamePlusRecord *npr
745 = pr->records->u.databaseOrSurDiagnostics->records[i];
747 sru_res->records[i + num].recordPacking = record_packing;
749 if (npr->which == Z_NamePlusRecord_databaseRecord &&
750 npr->u.databaseRecord->direct_reference
751 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
754 // got XML record back
755 Z_External *r = npr->u.databaseRecord;
756 sru_res->records[i + num].recordPosition =
757 odr_intdup(odr_en, position);
758 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
759 sru_res->records[i + num].recordData_buf
760 = odr_strdupn(odr_en,
761 (const char *)r->u.octet_aligned->buf,
762 r->u.octet_aligned->len);
763 sru_res->records[i + num].recordData_len
764 = r->u.octet_aligned->len;
768 // not XML or no database record at all
769 yaz_mk_sru_surrogate(
770 odr_en, sru_res->records + i + num, position,
771 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
774 num += returned_recs;
777 sru_res->num_records = num;
778 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
779 sru_res->nextRecordPosition =
780 odr_intdup(odr_en, start + num);
784 int yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
785 const Z_SRW_searchRetrieveRequest *req
788 if (req->query_type == Z_SRW_query_type_cql)
790 Z_External *ext = (Z_External *)
791 odr_malloc(odr_en, sizeof(*ext));
792 ext->direct_reference =
793 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
794 ext->indirect_reference = 0;
796 ext->which = Z_External_CQL;
797 ext->u.cql = odr_strdup(odr_en, req->query.cql);
799 z_query->which = Z_Query_type_104;
800 z_query->u.type_104 = ext;
804 if (req->query_type == Z_SRW_query_type_pqf)
806 Z_RPNQuery *RPNquery;
807 YAZ_PQF_Parser pqf_parser;
809 pqf_parser = yaz_pqf_create ();
811 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
813 yaz_pqf_destroy(pqf_parser);
816 return YAZ_SRW_QUERY_SYNTAX_ERROR;
818 z_query->which = Z_Query_type_1;
819 z_query->u.type_1 = RPNquery;
823 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
828 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
829 Z_SRW_searchRetrieveResponse
831 Z_Records *records) const
833 // checking non surrogate diagnostics in Z3950 present response package
835 && records->which == Z_Records_NSD
836 && records->u.nonSurrogateDiagnostic)
838 z3950_to_srw_diag(odr_en, sru_res,
839 records->u.nonSurrogateDiagnostic);
847 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
848 Z_SRW_searchRetrieveResponse *sru_res,
849 Z_DefaultDiagFormat *ddf) const
851 int bib1_code = *ddf->condition;
852 sru_res->num_diagnostics = 1;
853 sru_res->diagnostics = (Z_SRW_diagnostic *)
854 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
855 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
856 yaz_diag_bib1_to_srw(bib1_code),
863 static mp::filter::Base* filter_creator()
865 return new mp::filter::SRUtoZ3950;
869 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
880 * c-file-style: "Stroustrup"
881 * indent-tabs-mode: nil
883 * vim: shiftwidth=4 tabstop=8 expandtab