1 /* This file is part of Metaproxy.
2 Copyright (C) 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/pquery.h>
31 #include <yaz/oid_db.h>
33 #include <yaz/otherinfo.h>
34 #if YAZ_VERSIONL >= 0x50000
35 #include <yaz/facet.h>
38 #include <boost/thread/mutex.hpp>
39 #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::Frontend : boost::noncopyable {
59 class SRUtoZ3950::Impl {
61 void configure(const xmlNode *xmlnode);
62 void process(metaproxy_1::Package &package);
64 FrontendPtr get_frontend(mp::Package &package);
65 void release_frontend(mp::Package &package);
66 std::map<std::string, const xmlNode *> m_database_explain;
67 std::string default_stylesheet;
69 typedef std::map<std::string, int> ActiveUrlMap;
71 boost::mutex m_url_mutex;
72 boost::condition m_cond_url_ready;
73 ActiveUrlMap m_active_urls;
76 boost::mutex m_mutex_session;
77 boost::condition m_cond_session_ready;
78 std::map<mp::Session, FrontendPtr> m_clients;
80 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
81 int z3950_build_query(
82 mp::odr &odr_en, Z_Query *z_query,
83 const Z_SRW_searchRetrieveRequest *req
86 bool z3950_init_request(
90 Z_SRW_PDU *sru_pdu_res,
91 const Z_SRW_PDU *sru_pdu_req
94 bool z3950_close_request(mp::Package &package) const;
96 bool z3950_search_request(
99 Z_SRW_PDU *sru_pdu_res,
100 Z_SRW_searchRetrieveRequest const *sr_req,
102 std::string db_append
105 bool z3950_present_request(
106 mp::Package &package,
108 Z_SRW_PDU *sru_pdu_res,
109 Z_SRW_searchRetrieveRequest const *sr_req
112 bool z3950_to_srw_diagnostics_ok(
114 Z_SRW_searchRetrieveResponse *srw_res,
118 int z3950_to_srw_diag(
120 Z_SRW_searchRetrieveResponse *srw_res,
121 Z_DefaultDiagFormat *ddf
128 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
132 yf::SRUtoZ3950::~SRUtoZ3950()
133 { // must have a destructor because of boost::scoped_ptr
136 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
139 m_p->configure(xmlnode);
142 void yf::SRUtoZ3950::process(mp::Package &package) const
144 m_p->process(package);
147 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
149 const xmlNode * dbnode;
151 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
153 if (dbnode->type != XML_ELEMENT_NODE)
156 if (!strcmp((const char *) dbnode->name, "database"))
158 std::string database;
160 for (struct _xmlAttr *attr = dbnode->properties;
161 attr; attr = attr->next)
163 mp::xml::check_attribute(attr, "", "name");
164 database = mp::xml::get_text(attr);
166 const xmlNode *explainnode;
167 for (explainnode = dbnode->children;
168 explainnode; explainnode = explainnode->next)
170 if (explainnode->type == XML_ELEMENT_NODE)
172 m_database_explain.insert(
173 std::make_pair(database, explainnode));
179 else if (!strcmp((const char *) dbnode->name, "stylesheet"))
181 default_stylesheet = mp::xml::get_text(dbnode);
185 throw mp::filter::FilterException
187 + std::string((const char *) dbnode->name)
194 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
198 mp::odr odr_de(ODR_DECODE);
199 Z_SRW_PDU *sru_pdu_req = 0;
201 mp::odr odr_en(ODR_ENCODE);
202 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
204 // determine database with the HTTP header information only
205 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
206 std::map<std::string, const xmlNode *>::iterator idbexp;
207 idbexp = m_database_explain.find(sruinfo.database);
209 // assign explain config XML DOM node if database is known
210 const xmlNode *explainnode = 0;
211 if (idbexp != m_database_explain.end())
213 explainnode = idbexp->second;
216 // decode SRU request
219 const char *stylesheet = 0;
221 // filter acts as sink for non-valid SRU requests
222 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
228 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
229 sruinfo, explainnode);
230 mp_util::build_sru_response(package, odr_en, soap,
231 sru_pdu_res, charset, stylesheet);
235 metaproxy_1::odr odr;
237 odr.create_HTTP_Response(package.session(),
238 zgdu_req->u.HTTP_Request, 400);
239 package.response() = zgdu_res;
244 bool enable_package_log = false;
247 Z_SRW_extra_arg *arg;
249 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
250 if (!strcmp(arg->name, "x-target"))
252 zurl = std::string(arg->value);
254 else if (!strcmp(arg->name, "x-max-sockets"))
256 package.origin().set_max_sockets(atoi(arg->value));
258 else if (!strcmp(arg->name, "x-session-id"))
260 package.origin().set_custom_session(arg->value);
262 else if (!strcmp(arg->name, "x-log-enable"))
264 if (*arg->value == '1')
266 enable_package_log = true;
267 package.log_enable();
270 else if (!strncmp(arg->name, "x-client-", 9) && arg->value)
274 dbargs += mp_util::uri_encode(arg->name + 9);
276 dbargs += mp_util::uri_encode(arg->value);
281 // filter acts as sink for SRU explain requests
282 if (sru_pdu_req->which == Z_SRW_explain_request)
284 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
285 stylesheet = er_req->stylesheet;
287 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
288 sruinfo, explainnode, er_req);
290 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
291 && sru_pdu_req->u.request)
293 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
294 stylesheet = sr_req->stylesheet;
296 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_searchRetrieve_response,
297 sru_pdu_req->srw_version);
299 // checking that we have a query
300 ok = mp_util::check_sru_query_exists(package, odr_en,
301 sru_pdu_res, sr_req);
303 if (ok && z3950_init_request(package, odr_en,
304 zurl, sru_pdu_res, sru_pdu_req))
306 ok = z3950_search_request(package, odr_en,
307 sru_pdu_res, sr_req, zurl, dbargs);
310 && sru_pdu_res->u.response->numberOfRecords
311 && *(sru_pdu_res->u.response->numberOfRecords))
313 ok = z3950_present_request(package, odr_en,
316 z3950_close_request(package);
321 else if (sru_pdu_req->which == Z_SRW_scan_request
322 && sru_pdu_req->u.scan_request)
324 sru_pdu_res = yaz_srw_get_pdu(odr_en, Z_SRW_scan_response,
325 sru_pdu_req->srw_version);
326 stylesheet = sru_pdu_req->u.scan_request->stylesheet;
328 // we do not do scan at the moment, therefore issuing a diagnostic
329 yaz_add_srw_diagnostic(odr_en,
330 &(sru_pdu_res->u.scan_response->diagnostics),
331 &(sru_pdu_res->u.scan_response->num_diagnostics),
332 YAZ_SRW_UNSUPP_OPERATION, "scan");
336 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
338 yaz_add_srw_diagnostic(odr_en,
339 &(sru_pdu_res->u.explain_response->diagnostics),
340 &(sru_pdu_res->u.explain_response->num_diagnostics),
341 YAZ_SRW_UNSUPP_OPERATION, "unknown");
344 if (enable_package_log)
347 package.log_reset(l);
352 wrbuf_puts(w, "<log>\n");
353 wrbuf_xmlputs(w, l.c_str());
354 wrbuf_puts(w, "</log>");
356 sru_pdu_res->extraResponseData_len = w.len();
357 sru_pdu_res->extraResponseData_buf =
358 odr_strdup(odr_en, wrbuf_cstr(w));
361 if (!stylesheet && default_stylesheet.length())
362 stylesheet = default_stylesheet.c_str();
364 // build and send SRU response
365 mp_util::build_sru_response(package, odr_en, soap,
366 sru_pdu_res, charset, stylesheet);
370 yf::SRUtoZ3950::Frontend::Frontend() : m_in_use(true)
374 yf::SRUtoZ3950::Frontend::~Frontend()
379 yf::SRUtoZ3950::FrontendPtr yf::SRUtoZ3950::Impl::get_frontend(
380 mp::Package &package)
382 boost::mutex::scoped_lock lock(m_mutex_session);
384 std::map<mp::Session,yf::SRUtoZ3950::FrontendPtr>::iterator it;
388 it = m_clients.find(package.session());
389 if (it == m_clients.end())
392 if (!it->second->m_in_use)
394 it->second->m_in_use = true;
397 m_cond_session_ready.wait(lock);
399 FrontendPtr f(new Frontend);
400 m_clients[package.session()] = f;
405 void yf::SRUtoZ3950::Impl::release_frontend(mp::Package &package)
407 boost::mutex::scoped_lock lock(m_mutex_session);
408 std::map<mp::Session,FrontendPtr>::iterator it;
410 it = m_clients.find(package.session());
411 if (it != m_clients.end())
413 if (package.session().is_closed())
419 it->second->m_in_use = false;
421 m_cond_session_ready.notify_all();
425 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
427 FrontendPtr f = get_frontend(package);
429 Z_GDU *zgdu_req = package.request().get();
431 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
433 if (zgdu_req->u.HTTP_Request->content_len == 0)
435 const char *path = zgdu_req->u.HTTP_Request->path;
436 boost::mutex::scoped_lock lock(m_url_mutex);
439 ActiveUrlMap::iterator it = m_active_urls.find(path);
440 if (it == m_active_urls.end())
442 m_active_urls[path] = 1;
445 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
446 m_cond_url_ready.wait(lock);
449 sru(package, zgdu_req);
450 if (zgdu_req && zgdu_req->u.HTTP_Request->content_len == 0)
452 const char *path = zgdu_req->u.HTTP_Request->path;
453 boost::mutex::scoped_lock lock(m_url_mutex);
455 ActiveUrlMap::iterator it = m_active_urls.find(path);
457 m_active_urls.erase(it);
458 m_cond_url_ready.notify_all();
465 release_frontend(package);
469 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
472 Z_SRW_PDU *sru_pdu_res,
473 const Z_SRW_PDU *sru_pdu_req) const
475 // prepare Z3950 package
476 Package z3950_package(package.session(), package.origin());
477 z3950_package.copy_filter(package);
479 // set initRequest APDU
480 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
481 Z_InitRequest *init_req = apdu->u.initRequest;
483 Z_IdAuthentication *auth = NULL;
484 if (sru_pdu_req->username && !sru_pdu_req->password)
486 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
487 auth->which = Z_IdAuthentication_open;
488 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
490 else if (sru_pdu_req->username && sru_pdu_req->password)
492 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
493 auth->which = Z_IdAuthentication_idPass;
494 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
495 auth->u.idPass->groupId = NULL;
496 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
497 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
500 init_req->idAuthentication = auth;
502 *init_req->preferredMessageSize = 10*1024*1024;
503 *init_req->maximumRecordSize = 10*1024*1024;
505 ODR_MASK_SET(init_req->options, Z_Options_search);
506 ODR_MASK_SET(init_req->options, Z_Options_present);
507 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
508 ODR_MASK_SET(init_req->options, Z_Options_scan);
510 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
511 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
512 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
517 std::list<std::string> dblist;
518 mp_util::split_zurl(zurl, host, dblist);
519 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
522 Z_GDU *zgdu_req = package.request().get();
523 if (zgdu_req->which == Z_GDU_HTTP_Request)
525 Z_HTTP_Request *hreq = zgdu_req->u.HTTP_Request;
526 const char *peer_name =
527 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
530 yaz_oi_set_string_oid(&init_req->otherInfo, odr_en,
531 yaz_oid_userinfo_client_ip, 1, peer_name);
535 z3950_package.request() = apdu;
537 // send Z3950 package
538 z3950_package.move();
540 // check successful initResponse
541 Z_GDU *z3950_gdu = z3950_package.response().get();
543 int error = YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE;
544 const char *addinfo = 0;
545 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
546 && z3950_gdu->u.z3950->which == Z_APDU_initResponse)
548 Z_InitResponse *initrs = z3950_gdu->u.z3950->u.initResponse;
554 Z_DefaultDiagFormat *df = yaz_decode_init_diag(no, initrs);
558 yaz_add_srw_diagnostic(odr_en,
559 &(sru_pdu_res->u.response->diagnostics),
560 &(sru_pdu_res->u.response->num_diagnostics),
561 yaz_diag_bib1_to_srw(*df->condition),
566 return false; // got least one diagnostic from init
568 // we just have result=false.
569 error = YAZ_SRW_AUTHENTICATION_ERROR;
572 addinfo = "sru_z3950: expected initResponse";
573 yaz_add_srw_diagnostic(odr_en,
574 &(sru_pdu_res->u.response->diagnostics),
575 &(sru_pdu_res->u.response->num_diagnostics),
580 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
582 Package z3950_package(package.session(), package.origin());
583 z3950_package.copy_filter(package);
584 z3950_package.session().close();
586 z3950_package.move();
588 if (z3950_package.session().is_closed())
595 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
597 Z_SRW_PDU *sru_pdu_res,
598 Z_SRW_searchRetrieveRequest
601 std::string dbappend) const
604 assert(sru_pdu_res->u.response);
606 Package z3950_package(package.session(), package.origin());
607 z3950_package.copy_filter(package);
609 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
610 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
612 // RecordSyntax will always be XML
613 z_searchRequest->preferredRecordSyntax
614 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
616 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
617 &z_searchRequest->num_databaseNames,
618 &z_searchRequest->databaseNames))
622 if (sr_req->database)
623 db = sr_req->database;
627 if (dbappend.length())
632 z_searchRequest->num_databaseNames = 1;
633 z_searchRequest->databaseNames = (char**)
634 odr_malloc(odr_en, sizeof(char *));
635 z_searchRequest->databaseNames[0] = odr_strdup(odr_en, db.c_str());
637 #if YAZ_VERSIONL >= 0x50000
638 // yaz_oi_set_facetlist not public in YAZ 4.2.66
639 if (sr_req->facetList)
641 Z_OtherInformation **oi = &z_searchRequest->otherInfo;
642 yaz_oi_set_facetlist(oi, odr_en, sr_req->facetList);
646 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
647 z_searchRequest->query = z_query;
649 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
652 yaz_add_srw_diagnostic(odr_en,
653 &(sru_pdu_res->u.response->diagnostics),
654 &(sru_pdu_res->u.response->num_diagnostics),
660 z3950_package.request() = apdu;
662 z3950_package.move();
664 Z_GDU *z3950_gdu = z3950_package.response().get();
666 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
667 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
668 || !z3950_gdu->u.z3950->u.searchResponse
669 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
671 yaz_add_srw_diagnostic(odr_en,
672 &(sru_pdu_res->u.response->diagnostics),
673 &(sru_pdu_res->u.response->num_diagnostics),
674 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
678 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
680 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
685 #if YAZ_VERSIONL >= 0x50000
686 Z_FacetList *fl = yaz_oi_get_facetlist(&sr->additionalSearchInfo);
688 fl = yaz_oi_get_facetlist(&sr->otherInfo);
689 sru_pdu_res->u.response->facetList = fl;
691 sru_pdu_res->u.response->numberOfRecords
692 = odr_intdup(odr_en, *sr->resultCount);
696 bool yf::SRUtoZ3950::Impl::z3950_present_request(
697 mp::Package &package,
699 Z_SRW_PDU *sru_pdu_res,
700 const Z_SRW_searchRetrieveRequest *sr_req)
703 assert(sru_pdu_res->u.response);
710 if (sr_req->maximumRecords)
711 max_recs = *sr_req->maximumRecords;
712 if (sr_req->startRecord)
713 start = *sr_req->startRecord;
715 // no need to work if nobody wants record ..
719 bool send_z3950_present = true;
721 // recordXPath unsupported.
722 if (sr_req->recordXPath)
724 send_z3950_present = false;
725 yaz_add_srw_diagnostic(odr_en,
726 &(sru_pdu_res->u.response->diagnostics),
727 &(sru_pdu_res->u.response->num_diagnostics),
728 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
731 // resultSetTTL unsupported.
732 // resultSetIdleTime in response
733 if (sr_req->resultSetTTL)
735 send_z3950_present = false;
736 yaz_add_srw_diagnostic(odr_en,
737 &(sru_pdu_res->u.response->diagnostics),
738 &(sru_pdu_res->u.response->num_diagnostics),
739 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
743 if (sr_req->sort_type != Z_SRW_sort_type_none)
745 send_z3950_present = false;
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_SORT_UNSUPP, 0);
752 // start record requested negative, or larger than number of records
753 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
755 send_z3950_present = false;
756 yaz_add_srw_diagnostic(odr_en,
757 &(sru_pdu_res->u.response->diagnostics),
758 &(sru_pdu_res->u.response->num_diagnostics),
759 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
762 // maximumRecords requested negative
765 send_z3950_present = false;
766 yaz_add_srw_diagnostic(odr_en,
767 &(sru_pdu_res->u.response->diagnostics),
768 &(sru_pdu_res->u.response->num_diagnostics),
769 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
773 // exit on all these above diagnostics
774 if (!send_z3950_present)
777 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
778 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
780 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
781 sru_res->records = (Z_SRW_record *)
782 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
784 while (num < max_recs)
786 // now packaging the z3950 present request
787 Package z3950_package(package.session(), package.origin());
788 z3950_package.copy_filter(package);
789 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
791 assert(apdu->u.presentRequest);
793 *apdu->u.presentRequest->resultSetStartPoint = start + num;
794 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
796 // set response packing to be same as "request" packing..
797 int record_packing = Z_SRW_recordPacking_XML;
798 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
799 record_packing = Z_SRW_recordPacking_string;
801 // RecordSyntax will always be XML
802 apdu->u.presentRequest->preferredRecordSyntax
803 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
805 // z3950'fy record schema
806 if (sr_req->recordSchema)
808 apdu->u.presentRequest->recordComposition
809 = (Z_RecordComposition *)
810 odr_malloc(odr_en, sizeof(Z_RecordComposition));
811 apdu->u.presentRequest->recordComposition->which
812 = Z_RecordComp_simple;
813 apdu->u.presentRequest->recordComposition->u.simple
814 = mp_util::build_esn_from_schema(odr_en,
816 sr_req->recordSchema);
819 // attaching Z3950 package to filter chain
820 z3950_package.request() = apdu;
822 // sending Z30.50 present request
823 z3950_package.move();
825 //check successful Z3950 present response
826 Z_GDU *z3950_gdu = z3950_package.response().get();
827 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
828 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
829 || !z3950_gdu->u.z3950->u.presentResponse)
832 yaz_add_srw_diagnostic(odr_en,
833 &(sru_pdu_res->u.response->diagnostics),
834 &(sru_pdu_res->u.response->num_diagnostics),
835 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
838 // everything fine, continuing
840 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
842 // checking non surrogate diagnostics in Z3950 present response package
843 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
847 // if anything but database or surrogate diagnostics, stop
848 if (!pr->records || pr->records->which != Z_Records_DBOSD)
852 // inserting all records
854 pr->records->u.databaseOrSurDiagnostics->num_records;
855 for (int i = 0; i < returned_recs; i++)
857 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
858 Z_NamePlusRecord *npr
859 = pr->records->u.databaseOrSurDiagnostics->records[i];
861 sru_res->records[i + num].recordPacking = record_packing;
863 if (npr->which == Z_NamePlusRecord_surrogateDiagnostic)
865 Z_DiagRec *p = npr->u.surrogateDiagnostic;
866 if (p->which == Z_DiagRec_defaultFormat)
868 Z_DefaultDiagFormat *df = p->u.defaultFormat;
869 int c = yaz_diag_bib1_to_srw(*df->condition);
871 yaz_mk_sru_surrogate(
872 odr_en, sru_res->records + i + num, position,
877 yaz_mk_sru_surrogate(
878 odr_en, sru_res->records + i + num, position,
879 YAZ_SRW_RECORD_TEMPORARILY_UNAVAILABLE, 0);
882 else if (npr->which == Z_NamePlusRecord_databaseRecord &&
883 npr->u.databaseRecord->direct_reference
884 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
887 // got XML record back
888 Z_External *r = npr->u.databaseRecord;
889 sru_res->records[i + num].recordPosition =
890 odr_intdup(odr_en, position);
891 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
892 sru_res->records[i + num].recordData_buf
893 = odr_strdupn(odr_en,
894 (const char *)r->u.octet_aligned->buf,
895 r->u.octet_aligned->len);
896 sru_res->records[i + num].recordData_len
897 = r->u.octet_aligned->len;
901 // not XML or no database record at all
902 yaz_mk_sru_surrogate(
903 odr_en, sru_res->records + i + num, position,
904 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
907 num += returned_recs;
910 sru_res->num_records = num;
911 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
912 sru_res->nextRecordPosition =
913 odr_intdup(odr_en, start + num);
917 int yf::SRUtoZ3950::Impl::z3950_build_query(
918 mp::odr &odr_en, Z_Query *z_query,
919 const Z_SRW_searchRetrieveRequest *req
923 #ifdef Z_SRW_query_type_cql
924 req->query_type == Z_SRW_query_type_cql
926 !strcmp(req->queryType, "cql")
930 Z_External *ext = (Z_External *)
931 odr_malloc(odr_en, sizeof(*ext));
932 ext->direct_reference =
933 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
934 ext->indirect_reference = 0;
936 ext->which = Z_External_CQL;
937 ext->u.cql = odr_strdup(odr_en,
938 #ifdef Z_SRW_query_type_cql
945 z_query->which = Z_Query_type_104;
946 z_query->u.type_104 = ext;
951 #ifdef Z_SRW_query_type_pqf
952 req->query_type == Z_SRW_query_type_pqf
954 !strcmp(req->queryType, "pqf")
958 Z_RPNQuery *RPNquery;
959 YAZ_PQF_Parser pqf_parser;
961 pqf_parser = yaz_pqf_create ();
963 RPNquery = yaz_pqf_parse (pqf_parser, odr_en,
964 #ifdef Z_SRW_query_type_pqf
970 yaz_pqf_destroy(pqf_parser);
973 return YAZ_SRW_QUERY_SYNTAX_ERROR;
975 z_query->which = Z_Query_type_1;
976 z_query->u.type_1 = RPNquery;
980 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
983 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
985 Z_SRW_searchRetrieveResponse
987 Z_Records *records) const
989 // checking non surrogate diagnostics in Z3950 present response package
991 && records->which == Z_Records_NSD
992 && records->u.nonSurrogateDiagnostic)
994 z3950_to_srw_diag(odr_en, sru_res,
995 records->u.nonSurrogateDiagnostic);
1001 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
1003 Z_SRW_searchRetrieveResponse *sru_res,
1004 Z_DefaultDiagFormat *ddf) const
1006 int bib1_code = *ddf->condition;
1007 sru_res->num_diagnostics = 1;
1008 sru_res->diagnostics = (Z_SRW_diagnostic *)
1009 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
1010 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
1011 yaz_diag_bib1_to_srw(bib1_code),
1016 static mp::filter::Base* filter_creator()
1018 return new mp::filter::SRUtoZ3950;
1022 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_z3950 = {
1033 * c-file-style: "Stroustrup"
1034 * indent-tabs-mode: nil
1036 * vim: shiftwidth=4 tabstop=8 expandtab