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
22 #include <sys/types.h>
23 #include "filter_zoom.hpp"
24 #include <metaproxy/package.hpp>
25 #include <metaproxy/util.hpp>
26 #include <metaproxy/xmlutil.hpp>
27 #include <yaz/comstack.h>
31 #include <libxslt/xsltutils.h>
32 #include <libxslt/transform.h>
34 #include <boost/thread/mutex.hpp>
35 #include <boost/thread/condition.hpp>
37 #include <yaz/yaz-version.h>
38 #include <yaz/tpath.h>
40 #include <yaz/ccl_xml.h>
42 #include <yaz/rpn2cql.h>
43 #include <yaz/rpn2solr.h>
44 #include <yaz/pquery.h>
46 #include <yaz/oid_db.h>
47 #include <yaz/diagbib1.h>
50 #include <yaz/querytowrbuf.h>
51 #include <yaz/sortspec.h>
52 #include <yaz/tokenizer.h>
55 namespace mp = metaproxy_1;
56 namespace yf = mp::filter;
58 namespace metaproxy_1 {
60 class Zoom::Searchable : boost::noncopyable {
62 std::string authentication;
63 std::string authenticationMode;
69 std::string query_encoding;
71 std::string sru_version;
72 std::string request_syntax;
73 std::string element_set;
74 std::string record_encoding;
75 std::string transform_xsl_fname;
76 std::string transform_xsl_content;
77 std::string urlRecipe;
78 std::string contentConnector;
79 std::string sortStrategy;
80 std::string extraArgs;
81 std::string rpn2cql_fname;
84 CCL_bibset ccl_bibset;
85 std::map<std::string, std::string> sortmap;
86 Searchable(CCL_bibset base);
89 class Zoom::Backend : boost::noncopyable {
91 friend class Frontend;
93 mp::wrbuf m_apdu_wrbuf;
94 ZOOM_connection m_connection;
95 ZOOM_resultset m_resultset;
96 std::string m_frontend_database;
98 xsltStylesheetPtr xsp;
99 std::string cproxy_host;
104 cql_transform_t cqlt;
108 void connect(std::string zurl, int *error, char **addinfo,
110 void search(ZOOM_query q, Odr_int *hits,
111 int *error, char **addinfo, Z_FacetList **fl, ODR odr);
112 void present(Odr_int start, Odr_int number, ZOOM_record *recs,
113 int *error, char **addinfo, ODR odr);
114 void set_option(const char *name, const char *value);
115 void set_option(const char *name, std::string value);
116 const char *get_option(const char *name);
117 void get_zoom_error(int *error, char **addinfo, ODR odr);
119 class Zoom::Frontend : boost::noncopyable {
124 std::string session_realm;
125 yazpp_1::GDU m_init_gdu;
126 BackendPtr m_backend;
127 void handle_package(mp::Package &package);
128 void handle_search(mp::Package &package);
129 void auth(mp::Package &package, Z_InitRequest *req,
130 int *error, char **addinfo, ODR odr);
132 BackendPtr explain_search(mp::Package &package,
133 std::string &database,
137 std::string torus_url,
138 std::string &torus_db,
140 void handle_present(mp::Package &package);
141 BackendPtr get_backend_from_databases(mp::Package &package,
142 std::string &database,
148 bool create_content_session(mp::Package &package,
153 std::string authentication,
157 void prepare_elements(BackendPtr b,
158 Odr_oid *preferredRecordSyntax,
159 const char *element_set_name,
160 bool &enable_pz2_retrieval,
161 bool &enable_pz2_transform,
162 bool &enable_record_transform,
163 bool &assume_marc8_charset);
165 Z_Records *get_records(Package &package,
167 Odr_int number_to_present,
170 Odr_int *number_of_records_returned,
171 ODR odr, BackendPtr b,
172 Odr_oid *preferredRecordSyntax,
173 const char *element_set_name);
174 Z_Records *get_explain_records(Package &package,
176 Odr_int number_to_present,
179 Odr_int *number_of_records_returned,
180 ODR odr, BackendPtr b,
181 Odr_oid *preferredRecordSyntax,
182 const char *element_set_name);
183 bool retry(mp::Package &package,
186 int &error, char **addinfo,
187 int &proxy_step, int &same_retries,
189 void log_diagnostic(mp::Package &package,
190 int error, const char *addinfo);
192 Frontend(Impl *impl);
196 friend class Frontend;
200 void process(metaproxy_1::Package & package);
201 void configure(const xmlNode * ptr, bool test_only,
204 void configure_local_records(const xmlNode * ptr, bool test_only);
205 bool check_proxy(const char *proxy);
209 FrontendPtr get_frontend(mp::Package &package);
210 void release_frontend(mp::Package &package);
211 SearchablePtr parse_torus_record(const xmlNode *ptr);
212 struct cql_node *convert_cql_fields(struct cql_node *cn, ODR odr);
213 std::map<mp::Session, FrontendPtr> m_clients;
214 boost::mutex m_mutex;
215 boost::condition m_cond_session_ready;
216 std::string torus_searchable_url;
217 std::string torus_content_url;
218 std::string torus_auth_url;
219 std::string default_realm;
220 std::map<std::string,std::string> fieldmap;
222 std::string file_path;
223 std::string content_proxy_server;
224 std::string content_tmp_file;
225 std::string content_config_file;
228 std::string element_transform;
229 std::string element_raw;
230 std::string element_passthru;
232 xsltStylesheetPtr explain_xsp;
233 xsltStylesheetPtr record_xsp;
234 std::map<std::string,SearchablePtr> s_map;
235 std::string zoom_timeout;
242 static xmlNode *xml_node_search(xmlNode *ptr, int *num, int m)
246 if (ptr->type == XML_ELEMENT_NODE &&
247 !strcmp((const char *) ptr->name, "recordData"))
253 else // else: we don't want to find nested nodes
255 xmlNode *ret_node = xml_node_search(ptr->children, num, m);
264 // define Pimpl wrapper forwarding to Impl
266 yf::Zoom::Zoom() : m_p(new Impl)
271 { // must have a destructor because of boost::scoped_ptr
274 void yf::Zoom::configure(const xmlNode *xmlnode, bool test_only,
277 m_p->configure(xmlnode, test_only, path);
280 void yf::Zoom::process(mp::Package &package) const
282 m_p->process(package);
286 // define Implementation stuff
288 yf::Zoom::Backend::Backend()
290 m_connection = ZOOM_connection_create(0);
291 ZOOM_connection_save_apdu_wrbuf(m_connection, m_apdu_wrbuf);
294 enable_cproxy = true;
295 enable_explain = false;
300 yf::Zoom::Backend::~Backend()
303 xsltFreeStylesheet(xsp);
305 xmlFreeDoc(explain_doc);
306 cql_transform_close(cqlt);
307 ZOOM_connection_destroy(m_connection);
308 ZOOM_resultset_destroy(m_resultset);
312 void yf::Zoom::Backend::get_zoom_error(int *error, char **addinfo,
316 const char *zoom_addinfo = 0;
317 const char *dset = 0;
318 int error0 = ZOOM_connection_error_x(m_connection, &msg,
319 &zoom_addinfo, &dset);
325 if (!strcmp(dset, "info:srw/diagnostic/1"))
326 *error = yaz_diag_srw_to_bib1(error0);
327 else if (!strcmp(dset, "Bib-1"))
329 else if (!strcmp(dset, "ZOOM"))
331 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
332 if (error0 == ZOOM_ERROR_INIT)
333 *error = YAZ_BIB1_INIT_AC_AUTHENTICATION_SYSTEM_ERROR;
334 else if (error0 == ZOOM_ERROR_DECODE)
338 if (strstr(zoom_addinfo, "Authentication") ||
339 strstr(zoom_addinfo, "authentication"))
340 *error = YAZ_BIB1_INIT_AC_AUTHENTICATION_SYSTEM_ERROR;
345 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
347 *addinfo = (char *) odr_malloc(
348 odr, 30 + strlen(dset) + strlen(msg) +
349 (zoom_addinfo ? strlen(zoom_addinfo) : 0));
351 if (zoom_addinfo && *zoom_addinfo)
353 strcpy(*addinfo, zoom_addinfo);
354 strcat(*addinfo, " ");
356 sprintf(*addinfo + strlen(*addinfo), "(%s %d %s)", dset, error0, msg);
360 void yf::Zoom::Backend::connect(std::string zurl,
361 int *error, char **addinfo,
364 size_t h = zurl.find_first_of('#');
365 if (h != std::string::npos)
367 ZOOM_connection_connect(m_connection, zurl.length() ? zurl.c_str() : 0, 0);
368 get_zoom_error(error, addinfo, odr);
372 void yf::Zoom::Backend::search(ZOOM_query q, Odr_int *hits,
373 int *error, char **addinfo, Z_FacetList **flp,
376 ZOOM_resultset_destroy(m_resultset);
380 WRBUF w = wrbuf_alloc();
381 yaz_facet_list_to_wrbuf(w, *flp);
382 set_option("facets", wrbuf_cstr(w));
385 m_resultset = ZOOM_connection_search(m_connection, q);
386 get_zoom_error(error, addinfo, odr);
388 *hits = ZOOM_resultset_size(m_resultset);
392 size_t num_facets = ZOOM_resultset_facets_size(m_resultset);
396 Z_FacetList *fl = (Z_FacetList *) odr_malloc(odr, sizeof(*fl));
397 fl->elements = (Z_FacetField **)
398 odr_malloc(odr, num_facets * sizeof(*fl->elements));
399 for (i = 0; i < num_facets; i++)
401 ZOOM_facet_field ff =
402 ZOOM_resultset_get_facet_field_by_index(m_resultset, i);
405 Z_AttributeList *al = (Z_AttributeList *)
406 odr_malloc(odr, sizeof(*al));
407 al->num_attributes = 1;
408 al->attributes = (Z_AttributeElement **)
409 odr_malloc(odr, sizeof(*al->attributes));
410 Z_AttributeElement *ae = al->attributes[0] = (Z_AttributeElement *)
411 odr_malloc(odr, sizeof(**al->attributes));
412 ae->attributeSet = 0;
413 ae->attributeType = odr_intdup(odr, 1);
414 ae->which = Z_AttributeValue_complex;
415 ae->value.complex = (Z_ComplexAttribute *)
416 odr_malloc(odr, sizeof(*ae->value.complex));
417 ae->value.complex->num_list = 1;
418 ae->value.complex->list = (Z_StringOrNumeric **)
419 odr_malloc(odr, sizeof(**ae->value.complex->list));
420 ae->value.complex->list[0] = (Z_StringOrNumeric *)
421 odr_malloc(odr, sizeof(**ae->value.complex->list));
422 ae->value.complex->list[0]->which = Z_StringOrNumeric_string;
423 ae->value.complex->list[0]->u.string =
424 odr_strdup(odr, ZOOM_facet_field_name(ff));
425 ae->value.complex->num_semanticAction = 0;
426 ae->value.complex->semanticAction = 0;
428 int num_terms = ZOOM_facet_field_term_count(ff);
429 fl->elements[i] = (Z_FacetField *)
430 odr_malloc(odr, sizeof(Z_FacetField));
431 fl->elements[i]->attributes = al;
432 fl->elements[i]->num_terms = num_terms;
433 fl->elements[i]->terms = (Z_FacetTerm **)
434 odr_malloc(odr, num_terms * sizeof(Z_FacetTerm *));
436 for (j = 0; j < num_terms; j++)
439 const char *a_term = ZOOM_facet_field_get_term(ff, j, &freq);
440 Z_FacetTerm *ft = (Z_FacetTerm *) odr_malloc(odr, sizeof(*ft));
441 ft->term = z_Term_create(odr, Z_Term_general, a_term,
443 ft->count = odr_intdup(odr, freq);
445 fl->elements[i]->terms[j] = ft;
453 void yf::Zoom::Backend::present(Odr_int start, Odr_int number,
455 int *error, char **addinfo, ODR odr)
457 ZOOM_resultset_records(m_resultset, recs, start, number);
458 get_zoom_error(error, addinfo, odr);
461 void yf::Zoom::Backend::set_option(const char *name, const char *value)
463 ZOOM_connection_option_set(m_connection, name, value);
465 ZOOM_resultset_option_set(m_resultset, name, value);
468 void yf::Zoom::Backend::set_option(const char *name, std::string value)
470 set_option(name, value.c_str());
473 const char *yf::Zoom::Backend::get_option(const char *name)
475 return ZOOM_connection_option_get(m_connection, name);
478 yf::Zoom::Searchable::Searchable(CCL_bibset base)
481 use_turbomarc = true;
482 sortStrategy = "embed";
483 ccl_bibset = ccl_qual_dup(base);
486 yf::Zoom::Searchable::~Searchable()
488 ccl_qual_rm(&ccl_bibset);
491 yf::Zoom::Frontend::Frontend(Impl *impl) :
492 m_p(impl), m_is_virtual(false), m_in_use(true)
496 yf::Zoom::Frontend::~Frontend()
500 yf::Zoom::FrontendPtr yf::Zoom::Impl::get_frontend(mp::Package &package)
502 boost::mutex::scoped_lock lock(m_mutex);
504 std::map<mp::Session,yf::Zoom::FrontendPtr>::iterator it;
508 it = m_clients.find(package.session());
509 if (it == m_clients.end())
512 if (!it->second->m_in_use)
514 it->second->m_in_use = true;
517 m_cond_session_ready.wait(lock);
519 FrontendPtr f(new Frontend(this));
520 m_clients[package.session()] = f;
525 void yf::Zoom::Impl::release_frontend(mp::Package &package)
527 boost::mutex::scoped_lock lock(m_mutex);
528 std::map<mp::Session,yf::Zoom::FrontendPtr>::iterator it;
530 it = m_clients.find(package.session());
531 if (it != m_clients.end())
533 if (package.session().is_closed())
539 it->second->m_in_use = false;
541 m_cond_session_ready.notify_all();
545 yf::Zoom::Impl::Impl() :
546 apdu_log(false), element_transform("pz2") , element_raw("raw") ,
547 element_passthru("F"),
548 zoom_timeout("40"), proxy_timeout(1)
550 bibset = ccl_qual_mk();
554 srand((unsigned int) time(0));
557 yf::Zoom::Impl::~Impl()
560 xsltFreeStylesheet(explain_xsp);
561 ccl_qual_rm(&bibset);
564 yf::Zoom::SearchablePtr yf::Zoom::Impl::parse_torus_record(const xmlNode *ptr)
566 Zoom::SearchablePtr s(new Searchable(bibset));
568 for (ptr = ptr->children; ptr; ptr = ptr->next)
570 if (ptr->type != XML_ELEMENT_NODE)
572 if (!strcmp((const char *) ptr->name, "layer"))
574 else if (!strcmp((const char *) ptr->name,
577 s->authentication = mp::xml::get_text(ptr);
579 else if (!strcmp((const char *) ptr->name,
580 "authenticationMode"))
582 s->authenticationMode = mp::xml::get_text(ptr);
584 else if (!strcmp((const char *) ptr->name,
587 s->cfAuth = mp::xml::get_text(ptr);
589 else if (!strcmp((const char *) ptr->name,
592 s->cfProxy = mp::xml::get_text(ptr);
594 else if (!strcmp((const char *) ptr->name,
597 s->cfSubDB = mp::xml::get_text(ptr);
599 else if (!strcmp((const char *) ptr->name,
602 s->contentConnector = mp::xml::get_text(ptr);
604 else if (!strcmp((const char *) ptr->name, "udb"))
606 s->udb = mp::xml::get_text(ptr);
608 else if (!strcmp((const char *) ptr->name, "zurl"))
610 s->target = mp::xml::get_text(ptr);
612 else if (!strcmp((const char *) ptr->name, "sru"))
614 s->sru = mp::xml::get_text(ptr);
616 else if (!strcmp((const char *) ptr->name, "SRUVersion") ||
617 !strcmp((const char *) ptr->name, "sruVersion"))
619 s->sru_version = mp::xml::get_text(ptr);
621 else if (!strcmp((const char *) ptr->name,
624 s->query_encoding = mp::xml::get_text(ptr);
626 else if (!strcmp((const char *) ptr->name,
629 s->piggyback = mp::xml::get_bool(ptr, true);
631 else if (!strcmp((const char *) ptr->name,
634 s->request_syntax = mp::xml::get_text(ptr);
636 else if (!strcmp((const char *) ptr->name,
639 s->element_set = mp::xml::get_text(ptr);
641 else if (!strcmp((const char *) ptr->name,
644 s->record_encoding = mp::xml::get_text(ptr);
646 else if (!strcmp((const char *) ptr->name,
649 s->transform_xsl_fname = mp::xml::get_text(ptr);
651 else if (!strcmp((const char *) ptr->name,
654 s->transform_xsl_content = mp::xml::get_text(ptr);
656 else if (!strcmp((const char *) ptr->name,
659 s->urlRecipe = mp::xml::get_text(ptr);
661 else if (!strcmp((const char *) ptr->name,
664 ; // useTurboMarc is ignored
666 else if (!strncmp((const char *) ptr->name,
669 std::string value = mp::xml::get_text(ptr);
670 if (value.length() > 0)
672 ccl_qual_fitem(s->ccl_bibset, value.c_str(),
673 (const char *) ptr->name + 7);
676 else if (!strncmp((const char *) ptr->name,
679 std::string value = mp::xml::get_text(ptr);
680 s->sortmap[(const char *) ptr->name + 8] = value;
682 else if (!strcmp((const char *) ptr->name,
685 s->sortStrategy = mp::xml::get_text(ptr);
687 else if (!strcmp((const char *) ptr->name,
690 s->extraArgs = mp::xml::get_text(ptr);
692 else if (!strcmp((const char *) ptr->name, "rpn2cql"))
693 s->rpn2cql_fname = mp::xml::get_text(ptr);
698 void yf::Zoom::Impl::configure_local_records(const xmlNode *ptr, bool test_only)
700 while (ptr && ptr->type != XML_ELEMENT_NODE)
705 if (!strcmp((const char *) ptr->name, "records"))
707 for (ptr = ptr->children; ptr; ptr = ptr->next)
709 if (ptr->type != XML_ELEMENT_NODE)
711 if (!strcmp((const char *) ptr->name, "record"))
713 SearchablePtr s = parse_torus_record(ptr);
716 std::string udb = s->udb;
721 throw mp::filter::FilterException
722 ("No udb for local torus record");
728 throw mp::filter::FilterException
730 + std::string((const char *) ptr->name)
731 + " in zoom filter inside element "
738 throw mp::filter::FilterException
740 + std::string((const char *) ptr->name)
741 + " in zoom filter inside element <torus>");
746 void yf::Zoom::Impl::configure(const xmlNode *ptr, bool test_only,
749 std::string explain_xslt_fname;
750 std::string record_xslt_fname;
756 for (ptr = ptr->children; ptr; ptr = ptr->next)
758 if (ptr->type != XML_ELEMENT_NODE)
760 else if (!strcmp((const char *) ptr->name, "torus"))
762 const struct _xmlAttr *attr;
763 for (attr = ptr->properties; attr; attr = attr->next)
765 if (!strcmp((const char *) attr->name, "url"))
766 torus_searchable_url = mp::xml::get_text(attr->children);
767 else if (!strcmp((const char *) attr->name, "content_url"))
768 torus_content_url = mp::xml::get_text(attr->children);
769 else if (!strcmp((const char *) attr->name, "auth_url"))
770 torus_auth_url = mp::xml::get_text(attr->children);
771 else if (!strcmp((const char *) attr->name, "realm"))
772 default_realm = mp::xml::get_text(attr->children);
773 else if (!strcmp((const char *) attr->name, "xsldir"))
774 xsldir = mp::xml::get_text(attr->children);
775 else if (!strcmp((const char *) attr->name, "element_transform"))
776 element_transform = mp::xml::get_text(attr->children);
777 else if (!strcmp((const char *) attr->name, "element_raw"))
778 element_raw = mp::xml::get_text(attr->children);
779 else if (!strcmp((const char *) attr->name, "element_passthru"))
780 element_passthru = mp::xml::get_text(attr->children);
781 else if (!strcmp((const char *) attr->name, "proxy"))
782 proxy = mp::xml::get_text(attr->children);
783 else if (!strcmp((const char *) attr->name, "explain_xsl"))
784 explain_xslt_fname = mp::xml::get_text(attr->children);
785 else if (!strcmp((const char *) attr->name, "record_xsl"))
786 record_xslt_fname = mp::xml::get_text(attr->children);
788 throw mp::filter::FilterException(
789 "Bad attribute " + std::string((const char *)
792 // If content_url is not given, use value of searchable, to
793 // ensure backwards compatibility
794 if (!torus_content_url.length())
795 torus_content_url = torus_searchable_url;
796 configure_local_records(ptr->children, test_only);
798 else if (!strcmp((const char *) ptr->name, "cclmap"))
800 const char *addinfo = 0;
801 ccl_xml_config(bibset, ptr, &addinfo);
803 else if (!strcmp((const char *) ptr->name, "fieldmap"))
805 const struct _xmlAttr *attr;
806 std::string ccl_field;
807 std::string cql_field;
808 for (attr = ptr->properties; attr; attr = attr->next)
810 if (!strcmp((const char *) attr->name, "ccl"))
811 ccl_field = mp::xml::get_text(attr->children);
812 else if (!strcmp((const char *) attr->name, "cql"))
813 cql_field = mp::xml::get_text(attr->children);
815 throw mp::filter::FilterException(
816 "Bad attribute " + std::string((const char *)
819 if (cql_field.length())
820 fieldmap[cql_field] = ccl_field;
822 else if (!strcmp((const char *) ptr->name, "contentProxy"))
824 const struct _xmlAttr *attr;
825 for (attr = ptr->properties; attr; attr = attr->next)
827 if (!strcmp((const char *) attr->name, "server"))
830 "contentProxy's server attribute is deprecated");
832 "Specify config_file instead. For example:");
834 " content_file=\"/etc/cf-proxy/cproxy.cfg\"");
835 content_proxy_server = mp::xml::get_text(attr->children);
837 else if (!strcmp((const char *) attr->name, "tmp_file"))
838 content_tmp_file = mp::xml::get_text(attr->children);
839 else if (!strcmp((const char *) attr->name, "config_file"))
840 content_config_file = mp::xml::get_text(attr->children);
842 throw mp::filter::FilterException(
843 "Bad attribute " + std::string((const char *)
847 else if (!strcmp((const char *) ptr->name, "log"))
849 const struct _xmlAttr *attr;
850 for (attr = ptr->properties; attr; attr = attr->next)
852 if (!strcmp((const char *) attr->name, "apdu"))
853 apdu_log = mp::xml::get_bool(attr->children, false);
855 throw mp::filter::FilterException(
856 "Bad attribute " + std::string((const char *)
860 else if (!strcmp((const char *) ptr->name, "zoom"))
862 const struct _xmlAttr *attr;
863 for (attr = ptr->properties; attr; attr = attr->next)
865 if (!strcmp((const char *) attr->name, "timeout"))
866 zoom_timeout = mp::xml::get_text(attr->children);
867 else if (!strcmp((const char *) attr->name, "proxy_timeout"))
868 proxy_timeout = mp::xml::get_int(attr->children, 1);
870 throw mp::filter::FilterException(
871 "Bad attribute " + std::string((const char *)
877 throw mp::filter::FilterException
879 + std::string((const char *) ptr->name)
880 + " in zoom filter");
884 if (explain_xslt_fname.length())
886 const char *path = 0;
889 path = xsldir.c_str();
891 path = file_path.c_str();
894 char *cp = yaz_filepath_resolve(explain_xslt_fname.c_str(),
898 throw mp::filter::FilterException
899 ("Cannot read XSLT " + explain_xslt_fname);
902 xmlDoc *xsp_doc = xmlParseFile(cp);
905 throw mp::filter::FilterException
906 ("Cannot parse XSLT " + explain_xslt_fname);
909 explain_xsp = xsltParseStylesheetDoc(xsp_doc);
913 throw mp::filter::FilterException
914 ("Cannot parse XSLT " + explain_xslt_fname);
919 if (record_xslt_fname.length())
921 const char *path = 0;
924 path = xsldir.c_str();
926 path = file_path.c_str();
929 char *cp = yaz_filepath_resolve(record_xslt_fname.c_str(),
933 throw mp::filter::FilterException
934 ("Cannot read XSLT " + record_xslt_fname);
937 xmlDoc *xsp_doc = xmlParseFile(cp);
940 throw mp::filter::FilterException
941 ("Cannot parse XSLT " + record_xslt_fname);
944 record_xsp = xsltParseStylesheetDoc(xsp_doc);
948 throw mp::filter::FilterException
949 ("Cannot parse XSLT " + record_xslt_fname);
955 bool yf::Zoom::Frontend::create_content_session(mp::Package &package,
957 int *error, char **addinfo,
959 std::string authentication,
963 if (b->sptr->contentConnector.length())
965 std::string proxyhostname;
966 std::string tmp_file;
967 bool legacy_format = false;
969 if (m_p->content_proxy_server.length())
971 proxyhostname = m_p->content_proxy_server;
972 legacy_format = true;
975 if (m_p->content_tmp_file.length())
976 tmp_file = m_p->content_tmp_file;
978 if (m_p->content_config_file.length())
980 FILE *inf = fopen(m_p->content_config_file.c_str(), "r");
984 while (fgets(buf, sizeof(buf)-1, inf))
987 cp = strchr(buf, '#');
990 cp = strchr(buf, '\n');
993 cp = strchr(buf, ':');
997 while (cp1 != buf && cp1[-1] == ' ')
1003 if (!strcmp(buf, "proxyhostname"))
1005 if (!strcmp(buf, "sessiondir") && *cp)
1007 if (cp[strlen(cp)-1] == '/')
1008 cp[strlen(cp)-1] = '\0';
1009 tmp_file = std::string(cp) + std::string("/cf.XXXXXX.p");
1017 package.log("zoom", YLOG_WARN|YLOG_ERRNO,
1018 "unable to open content config %s",
1019 m_p->content_config_file.c_str());
1020 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1021 *addinfo = (char *) odr_malloc(odr, 70 + tmp_file.length());
1022 sprintf(*addinfo, "zoom: unable to open content config %s",
1023 m_p->content_config_file.c_str());
1028 if (proxyhostname.length() == 0)
1030 package.log("zoom", YLOG_WARN, "no proxyhostname");
1033 if (tmp_file.length() == 0)
1035 package.log("zoom", YLOG_WARN, "no tmp_file");
1039 char *fname = xstrdup(tmp_file.c_str());
1040 char *xx = strstr(fname, "XXXXXX");
1043 package.log("zoom", YLOG_WARN, "bad tmp_file %s", tmp_file.c_str());
1044 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1045 *addinfo = (char *) odr_malloc(odr, 60 + tmp_file.length());
1046 sprintf(*addinfo, "zoom: bad format of content tmp_file: %s",
1051 char tmp_char = xx[6];
1052 sprintf(xx, "%06d", ((unsigned) rand()) % 1000000);
1054 b->cproxy_host = std::string(xx) + "." + proxyhostname;
1056 b->cproxy_host = proxyhostname + "/" + xx;
1059 FILE *file = fopen(fname, "w");
1062 package.log("zoom", YLOG_WARN|YLOG_ERRNO, "create %s", fname);
1063 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1064 *addinfo = (char *) odr_malloc(odr, 50 + strlen(fname));
1065 sprintf(*addinfo, "zoom: could not create %s", fname);
1070 wrbuf_puts(w, "#content_proxy\n");
1071 wrbuf_printf(w, "connector: %s\n", b->sptr->contentConnector.c_str());
1072 if (authentication.length())
1073 wrbuf_printf(w, "auth: %s\n", authentication.c_str());
1075 wrbuf_printf(w, "proxy: %s\n", proxy.c_str());
1077 wrbuf_printf(w, "realm: %s\n", realm.c_str());
1079 fwrite(w.buf(), 1, w.len(), file);
1081 package.log("zoom", YLOG_LOG, "content file: %s", fname);
1087 yf::Zoom::BackendPtr yf::Zoom::Frontend::get_backend_from_databases(
1088 mp::Package &package,
1089 std::string &database, int *error, char **addinfo, mp::odr &odr,
1092 bool connection_reuse = false;
1095 std::list<BackendPtr>::const_iterator map_it;
1096 if (m_backend && !m_backend->enable_explain &&
1097 m_backend->m_frontend_database == database)
1099 connection_reuse = true;
1100 proxy = m_backend->m_proxy;
1103 std::string input_args;
1104 std::string torus_db;
1105 size_t db_arg_pos = database.find(',');
1106 if (db_arg_pos != std::string::npos)
1108 torus_db = database.substr(0, db_arg_pos);
1109 input_args = database.substr(db_arg_pos + 1);
1112 torus_db = database;
1114 std::string authentication;
1115 std::string content_authentication;
1116 std::string content_proxy;
1117 std::string realm = session_realm;
1118 if (realm.length() == 0)
1119 realm = m_p->default_realm;
1121 const char *param_user = 0;
1122 const char *param_password = 0;
1123 const char *param_content_user = 0;
1124 const char *param_content_password = 0;
1125 const char *param_nocproxy = 0;
1130 int no_out_args = 0;
1131 if (input_args.length())
1132 no_parms = yaz_uri_to_array(input_args.c_str(),
1133 odr, &names, &values);
1134 // adding 10 because we'll be adding other URL args
1135 const char **out_names = (const char **)
1136 odr_malloc(odr, (10 + no_parms) * sizeof(*out_names));
1137 const char **out_values = (const char **)
1138 odr_malloc(odr, (10 + no_parms) * sizeof(*out_values));
1140 // may be changed if it's a content connection
1141 std::string torus_url = m_p->torus_searchable_url;
1143 for (i = 0; i < no_parms; i++)
1145 const char *name = names[i];
1146 const char *value = values[i];
1149 if (!strcmp(name, "user"))
1151 else if (!strcmp(name, "password"))
1152 param_password = value;
1153 else if (!strcmp(name, "content-user"))
1154 param_content_user = value;
1155 else if (!strcmp(name, "content-password"))
1156 param_content_password = value;
1157 else if (!strcmp(name, "content-proxy"))
1158 content_proxy = value;
1159 else if (!strcmp(name, "nocproxy"))
1160 param_nocproxy = value;
1161 else if (!strcmp(name, "proxy"))
1165 nmem_strsplit(((ODR) odr)->mem, ",", value, &dstr, &dnum);
1166 if (connection_reuse)
1168 // find the step after our current proxy
1170 for (i = 0; i < dnum; i++)
1171 if (!strcmp(proxy.c_str(), dstr[i]))
1176 *proxy_step = i + 1;
1180 // step is known.. Guess our proxy from it
1181 if (*proxy_step >= dnum)
1185 proxy = dstr[*proxy_step];
1188 if (*proxy_step == dnum)
1193 else if (!strcmp(name, "cproxysession"))
1195 out_names[no_out_args] = name;
1196 out_values[no_out_args++] = value;
1197 torus_url = m_p->torus_content_url;
1199 else if (!strcmp(name, "realm") && session_realm.length() == 0)
1201 else if (!strcmp(name, "torus_url") && session_realm.length() == 0)
1203 else if (name[0] == 'x' && name[1] == '-')
1205 out_names[no_out_args] = name;
1206 out_values[no_out_args++] = value;
1210 BackendPtr notfound;
1211 char *msg = (char*) odr_malloc(odr, strlen(name) + 30);
1212 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1213 sprintf(msg, "zoom: bad database argument: %s", name);
1219 package.log("zoom", YLOG_LOG, "proxy: %s", proxy.c_str());
1221 if (connection_reuse)
1223 m_backend->connect("", error, addinfo, odr);
1229 authentication = std::string(param_user);
1231 authentication += "/" + std::string(param_password);
1233 if (param_content_user)
1235 content_authentication = std::string(param_content_user);
1236 if (param_content_password)
1237 content_authentication += "/" + std::string(param_content_password);
1240 if (torus_db.compare("IR-Explain---1") == 0)
1241 return explain_search(package, database, error, addinfo, odr, torus_url,
1246 std::map<std::string,SearchablePtr>::iterator it;
1247 it = m_p->s_map.find(torus_db);
1248 if (it != m_p->s_map.end())
1250 else if (torus_url.length() > 0)
1252 std::string torus_query = "udb==" + torus_db;
1253 xmlDoc *doc = mp::get_searchable(package,torus_url, torus_db,
1258 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1259 *addinfo = odr_strdup(odr, "Torus server unavailable or "
1260 "incorrectly configured");
1264 const xmlNode *ptr = xmlDocGetRootElement(doc);
1265 if (ptr && ptr->type == XML_ELEMENT_NODE)
1267 if (!strcmp((const char *) ptr->name, "record"))
1269 sptr = m_p->parse_torus_record(ptr);
1271 else if (!strcmp((const char *) ptr->name, "records"))
1273 for (ptr = ptr->children; ptr; ptr = ptr->next)
1275 if (ptr->type == XML_ELEMENT_NODE
1276 && !strcmp((const char *) ptr->name, "record"))
1280 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1282 odr_malloc(odr, 40 + torus_db.length());
1283 sprintf(*addinfo, "multiple records for udb=%s",
1289 sptr = m_p->parse_torus_record(ptr);
1295 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1296 *addinfo = (char*) odr_malloc(
1297 odr, 40 + strlen((const char *) ptr->name));
1298 sprintf(*addinfo, "bad root element for torus: %s", ptr->name);
1309 *error = YAZ_BIB1_DATABASE_DOES_NOT_EXIST;
1310 *addinfo = odr_strdup(odr, torus_db.c_str());
1315 xsltStylesheetPtr xsp = 0;
1316 if (sptr->transform_xsl_content.length())
1318 xmlDoc *xsp_doc = xmlParseMemory(sptr->transform_xsl_content.c_str(),
1319 sptr->transform_xsl_content.length());
1322 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1323 *addinfo = odr_strdup(odr, "zoom: xmlParseMemory failed "
1324 "for literalTransform XSL");
1328 xsp = xsltParseStylesheetDoc(xsp_doc);
1331 *error = YAZ_BIB1_DATABASE_DOES_NOT_EXIST;
1333 odr_strdup(odr,"zoom: xsltParseStylesheetDoc failed "
1334 "for literalTransform XSL");
1336 xmlFreeDoc(xsp_doc);
1340 else if (sptr->transform_xsl_fname.length())
1342 const char *path = 0;
1344 if (m_p->xsldir.length())
1345 path = m_p->xsldir.c_str();
1347 path = m_p->file_path.c_str();
1350 char fullpath[1024];
1351 char *cp = yaz_filepath_resolve(sptr->transform_xsl_fname.c_str(),
1357 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1359 odr_malloc(odr, 40 + sptr->transform_xsl_fname.length());
1360 sprintf(*addinfo, "zoom: could not open file %s",
1361 sptr->transform_xsl_fname.c_str());
1365 xmlDoc *xsp_doc = xmlParseFile(fname.c_str());
1368 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1369 *addinfo = (char *) odr_malloc(odr, 50 + fname.length());
1370 sprintf(*addinfo, "zoom: xmlParseFile failed for file %s",
1375 xsp = xsltParseStylesheetDoc(xsp_doc);
1378 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1379 *addinfo = (char *) odr_malloc(odr, 50 + fname.length());
1380 sprintf(*addinfo, "zoom: xsltParseStylesheetDoc failed "
1381 "for file %s", fname.c_str());
1383 xmlFreeDoc(xsp_doc);
1388 cql_transform_t cqlt = 0;
1389 if (sptr->rpn2cql_fname.length())
1391 char fullpath[1024];
1392 char *cp = yaz_filepath_resolve(sptr->rpn2cql_fname.c_str(),
1393 m_p->file_path.c_str(), 0, fullpath);
1395 cqlt = cql_transform_open_fname(fullpath);
1398 cqlt = cql_transform_create();
1402 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1403 *addinfo = odr_strdup(odr, "zoom: missing/invalid cql2rpn file");
1405 xsltFreeStylesheet(xsp);
1411 BackendPtr b(new Backend);
1416 b->m_frontend_database = database;
1417 b->enable_cproxy = param_nocproxy ? false : true;
1419 if (sptr->query_encoding.length())
1420 b->set_option("rpnCharset", sptr->query_encoding);
1422 std::string extraArgs = sptr->extraArgs;
1424 b->set_option("timeout", m_p->zoom_timeout.c_str());
1427 b->set_option("apdulog", "1");
1429 if (sptr->piggyback && sptr->sru.length())
1430 b->set_option("count", "1"); /* some SRU servers INSIST on getting
1431 maximumRecords > 0 */
1432 b->set_option("piggyback", sptr->piggyback ? "1" : "0");
1434 if (authentication.length() == 0)
1435 authentication = sptr->authentication;
1437 if (proxy.length() == 0)
1438 proxy = sptr->cfProxy;
1441 if (sptr->cfAuth.length())
1444 b->set_option("user", sptr->cfAuth);
1445 if (authentication.length())
1447 size_t found = authentication.find('/');
1448 if (found != std::string::npos)
1450 out_names[no_out_args] = "user";
1451 out_values[no_out_args++] =
1452 odr_strdup(odr, authentication.substr(0, found).c_str());
1454 out_names[no_out_args] = "password";
1455 out_values[no_out_args++] =
1456 odr_strdup(odr, authentication.substr(found+1).c_str());
1460 out_names[no_out_args] = "user";
1461 out_values[no_out_args++] =
1462 odr_strdup(odr, authentication.c_str());
1467 out_names[no_out_args] = "proxy";
1468 out_values[no_out_args++] = odr_strdup(odr, proxy.c_str());
1470 if (sptr->cfSubDB.length())
1472 out_names[no_out_args] = "subdatabase";
1473 out_values[no_out_args++] = odr_strdup(odr, sptr->cfSubDB.c_str());
1475 if (!param_nocproxy && b->sptr->contentConnector.length())
1476 param_nocproxy = "1";
1480 out_names[no_out_args] = "nocproxy";
1481 out_values[no_out_args++] = odr_strdup(odr, param_nocproxy);
1486 if (sptr->sru.length() == 0)
1487 b->set_option("user", authentication); /* Z39.50 */
1491 std::string password;
1492 std::string authtype = sptr->authenticationMode;
1495 const char *cstr = authentication.c_str();
1496 const char *cp1 = strchr(cstr, '/');
1499 password.assign(cp1 + 1);
1500 user.assign(cstr, cp1 - cstr);
1506 if (authtype.compare("url") == 0)
1508 /* SRU URL encoding of auth stuff */
1509 ODR o = odr_createmem(ODR_ENCODE);
1511 const char *names[3];
1512 const char *values[3];
1514 names[0] = "x-username";
1515 values[0] = user.c_str();
1516 names[1] = "x-password";
1517 values[1] = password.c_str();
1521 yaz_array_to_uri(&path, o, (char **) names, (char **) values);
1522 if (extraArgs.length())
1523 extraArgs.append("&");
1524 extraArgs.append(path);
1529 b->set_option("user", user);
1530 if (password.length())
1531 b->set_option("password", password);
1535 b->set_option("proxy", proxy);
1537 if (extraArgs.length())
1538 b->set_option("extraArgs", extraArgs);
1540 std::string url(sptr->target);
1541 if (sptr->sru.length())
1543 b->set_option("sru", sptr->sru);
1544 if (url.find("://") == std::string::npos)
1545 url = "http://" + url;
1546 if (sptr->sru_version.length())
1547 b->set_option("sru_version", sptr->sru_version);
1552 out_names[no_out_args] = 0; // terminate list
1554 yaz_array_to_uri(&x_args, odr, (char **) out_names,
1555 (char **) out_values);
1556 url += "," + std::string(x_args);
1558 package.log("zoom", YLOG_LOG, "url: %s", url.c_str());
1559 b->connect(url, error, addinfo, odr);
1560 if (*error == 0 && b->enable_cproxy)
1561 create_content_session(package, b, error, addinfo, odr,
1562 content_authentication.length() ?
1563 content_authentication : authentication,
1564 content_proxy.length() ? content_proxy : proxy,
1571 void yf::Zoom::Frontend::prepare_elements(BackendPtr b,
1572 Odr_oid *preferredRecordSyntax,
1573 const char *element_set_name,
1574 bool &enable_pz2_retrieval,
1575 bool &enable_pz2_transform,
1576 bool &enable_record_transform,
1577 bool &assume_marc8_charset)
1579 char oid_name_str[OID_STR_MAX];
1580 const char *syntax_name = 0;
1582 if (preferredRecordSyntax &&
1583 !oid_oidcmp(preferredRecordSyntax, yaz_oid_recsyn_xml))
1585 if (element_set_name &&
1586 !strcmp(element_set_name, m_p->element_transform.c_str()))
1588 enable_pz2_retrieval = true;
1589 enable_pz2_transform = true;
1591 else if (element_set_name &&
1592 !strcmp(element_set_name, m_p->element_raw.c_str()))
1594 enable_pz2_retrieval = true;
1596 else if (m_p->record_xsp)
1598 enable_pz2_retrieval = true;
1599 enable_pz2_transform = true;
1600 enable_record_transform = true;
1604 if (enable_pz2_retrieval)
1606 std::string configured_request_syntax = b->sptr->request_syntax;
1607 if (configured_request_syntax.length())
1609 syntax_name = configured_request_syntax.c_str();
1610 const Odr_oid *syntax_oid =
1611 yaz_string_to_oid(yaz_oid_std(), CLASS_RECSYN, syntax_name);
1612 if (!oid_oidcmp(syntax_oid, yaz_oid_recsyn_usmarc)
1613 || !oid_oidcmp(syntax_oid, yaz_oid_recsyn_opac))
1614 assume_marc8_charset = true;
1617 else if (preferredRecordSyntax)
1619 yaz_oid_to_string_buf(preferredRecordSyntax, 0, oid_name_str);
1621 if (b->sptr->sru.length())
1622 syntax_name = "XML";
1624 b->set_option("preferredRecordSyntax", syntax_name);
1626 if (enable_pz2_retrieval)
1628 if (element_set_name && !strcmp(element_set_name,
1629 m_p->element_passthru.c_str()))
1633 element_set_name = 0;
1634 if (b->sptr->element_set.length())
1635 element_set_name = b->sptr->element_set.c_str();
1639 b->set_option("elementSetName", element_set_name);
1640 if (b->sptr->sru.length() && element_set_name)
1641 b->set_option("schema", element_set_name);
1644 Z_Records *yf::Zoom::Frontend::get_explain_records(
1645 mp::Package &package,
1647 Odr_int number_to_present,
1650 Odr_int *number_of_records_returned,
1653 Odr_oid *preferredRecordSyntax,
1654 const char *element_set_name)
1657 Z_Records *records = 0;
1659 if (!b->explain_doc)
1663 if (number_to_present > 10000)
1664 number_to_present = 10000;
1666 xmlNode *ptr = xmlDocGetRootElement(b->explain_doc);
1668 Z_NamePlusRecordList *npl = (Z_NamePlusRecordList *)
1669 odr_malloc(odr, sizeof(*npl));
1670 npl->records = (Z_NamePlusRecord **)
1671 odr_malloc(odr, number_to_present * sizeof(*npl->records));
1673 for (i = 0; i < number_to_present; i++)
1676 xmlNode *res = xml_node_search(ptr, &num, start + i + 1);
1679 xmlBufferPtr xml_buf = xmlBufferCreate();
1680 xmlNode *tmp_node = xmlCopyNode(res->children, 1);
1681 xmlNodeDump(xml_buf, tmp_node->doc, tmp_node, 0, 0);
1683 Z_NamePlusRecord *npr =
1684 (Z_NamePlusRecord *) odr_malloc(odr, sizeof(*npr));
1685 npr->databaseName = odr_strdup(odr, b->m_frontend_database.c_str());
1686 npr->which = Z_NamePlusRecord_databaseRecord;
1687 npr->u.databaseRecord =
1688 z_ext_record_xml(odr,
1689 (const char *) xml_buf->content, xml_buf->use);
1690 npl->records[i] = npr;
1691 xmlFreeNode(tmp_node);
1692 xmlBufferFree(xml_buf);
1694 records = (Z_Records*) odr_malloc(odr, sizeof(*records));
1695 records->which = Z_Records_DBOSD;
1696 records->u.databaseOrSurDiagnostics = npl;
1698 npl->num_records = i;
1699 *number_of_records_returned = i;
1704 Z_Records *yf::Zoom::Frontend::get_records(mp::Package &package,
1706 Odr_int number_to_present,
1709 Odr_int *number_of_records_returned,
1712 Odr_oid *preferredRecordSyntax,
1713 const char *element_set_name)
1715 *number_of_records_returned = 0;
1716 Z_Records *records = 0;
1717 bool enable_pz2_retrieval = false; // whether target profile is used
1718 bool enable_pz2_transform = false; // whether XSLT is used as well
1719 bool assume_marc8_charset = false;
1720 bool enable_record_transform = false;
1722 prepare_elements(b, preferredRecordSyntax,
1724 enable_pz2_retrieval,
1725 enable_pz2_transform,
1726 enable_record_transform,
1727 assume_marc8_charset);
1729 package.log("zoom", YLOG_LOG, "pz2_retrieval: %s . pz2_transform: %s",
1730 enable_pz2_retrieval ? "yes" : "no",
1731 enable_pz2_transform ? "yes" : "no");
1733 if (start < 0 || number_to_present <=0)
1736 if (number_to_present > 10000)
1737 number_to_present = 10000;
1739 ZOOM_record *recs = (ZOOM_record *)
1740 odr_malloc(odr, (size_t) number_to_present * sizeof(*recs));
1742 b->present(start, number_to_present, recs, error, addinfo, odr);
1747 for (i = 0; i < number_to_present; i++)
1752 { // only return records if no error and at least one record
1754 const char *xsl_parms[3];
1755 mp::wrbuf cproxy_host;
1757 if (b->enable_cproxy && b->cproxy_host.length())
1759 wrbuf_puts(cproxy_host, "\"");
1760 wrbuf_puts(cproxy_host, b->cproxy_host.c_str());
1761 wrbuf_puts(cproxy_host, "/\"");
1763 xsl_parms[0] = "cproxyhost";
1764 xsl_parms[1] = wrbuf_cstr(cproxy_host);
1772 char *odr_database = odr_strdup(odr,
1773 b->m_frontend_database.c_str());
1774 Z_NamePlusRecordList *npl = (Z_NamePlusRecordList *)
1775 odr_malloc(odr, sizeof(*npl));
1776 *number_of_records_returned = i;
1777 npl->num_records = i;
1778 npl->records = (Z_NamePlusRecord **)
1779 odr_malloc(odr, i * sizeof(*npl->records));
1780 for (i = 0; i < number_to_present; i++)
1782 Z_NamePlusRecord *npr = 0;
1783 const char *addinfo;
1785 int sur_error = ZOOM_record_error(recs[i], 0 /* msg */,
1786 &addinfo, 0 /* diagset */);
1790 log_diagnostic(package, sur_error, addinfo);
1791 npr = zget_surrogateDiagRec(odr, odr_database, sur_error,
1794 else if (enable_pz2_retrieval)
1796 char rec_type_str[100];
1797 const char *record_encoding = 0;
1799 if (b->sptr->record_encoding.length())
1800 record_encoding = b->sptr->record_encoding.c_str();
1801 else if (assume_marc8_charset)
1802 record_encoding = "marc8";
1804 strcpy(rec_type_str, b->sptr->use_turbomarc ? "txml" : "xml");
1805 if (record_encoding)
1807 strcat(rec_type_str, "; charset=");
1808 strcat(rec_type_str, record_encoding);
1811 package.log("zoom", YLOG_LOG, "Getting record of type %s",
1814 xmlChar *xmlrec_buf = 0;
1815 const char *rec_buf = ZOOM_record_get(recs[i], rec_type_str,
1817 if (!rec_buf && !npr)
1819 std::string addinfo("ZOOM_record_get failed for type ");
1821 int error = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1822 addinfo += rec_type_str;
1823 log_diagnostic(package, error, addinfo.c_str());
1824 npr = zget_surrogateDiagRec(odr, odr_database,
1825 error, addinfo.c_str());
1829 package.log_write(rec_buf, rec_len);
1830 package.log_write("\r\n", 2);
1833 if (rec_buf && b->xsp && enable_pz2_transform)
1835 xmlDoc *rec_doc = xmlParseMemory(rec_buf, rec_len);
1838 const char *addinfo = "xml parse failed for record";
1839 int error = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1840 log_diagnostic(package, error, addinfo);
1841 npr = zget_surrogateDiagRec(
1842 odr, odr_database, error, addinfo);
1846 // first stage XSLT - per target
1847 xsltStylesheetPtr xsp = b->xsp;
1848 xmlDoc *rec_res = xsltApplyStylesheet(xsp, rec_doc,
1850 // insert generated-url
1854 mp::xml::url_recipe_handle(rec_res,
1855 b->sptr->urlRecipe);
1858 xmlNode *ptr = xmlDocGetRootElement(rec_res);
1859 while (ptr && ptr->type != XML_ELEMENT_NODE)
1862 xmlNewChild(ptr, 0, BAD_CAST "metadata", 0);
1863 xmlNewProp(c, BAD_CAST "type", BAD_CAST
1865 xmlNode * t = xmlNewText(BAD_CAST res.c_str());
1869 // second stage XSLT - common
1870 if (rec_res && m_p->record_xsp &&
1871 enable_record_transform)
1873 xmlDoc *tmp_doc = rec_res;
1875 xsp = m_p->record_xsp;
1876 rec_res = xsltApplyStylesheet(xsp, tmp_doc,
1878 xmlFreeDoc(tmp_doc);
1880 // get result out of it
1883 xsltSaveResultToString(&xmlrec_buf, &rec_len,
1885 rec_buf = (const char *) xmlrec_buf;
1886 package.log_write(rec_buf, rec_len);
1888 xmlFreeDoc(rec_res);
1892 std::string addinfo;
1894 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1896 addinfo = "xslt apply failed for "
1897 + b->sptr->transform_xsl_fname;
1898 log_diagnostic(package, error, addinfo.c_str());
1899 npr = zget_surrogateDiagRec(
1900 odr, odr_database, error, addinfo.c_str());
1902 xmlFreeDoc(rec_doc);
1909 npr = zget_surrogateDiagRec(
1911 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
1915 npr = (Z_NamePlusRecord *)
1916 odr_malloc(odr, sizeof(*npr));
1917 npr->databaseName = odr_database;
1918 npr->which = Z_NamePlusRecord_databaseRecord;
1919 npr->u.databaseRecord =
1920 z_ext_record_xml(odr, rec_buf, rec_len);
1924 xmlFree(xmlrec_buf);
1929 (Z_External *) ZOOM_record_get(recs[i], "ext", 0);
1932 npr = (Z_NamePlusRecord *) odr_malloc(odr, sizeof(*npr));
1933 npr->databaseName = odr_database;
1934 npr->which = Z_NamePlusRecord_databaseRecord;
1935 npr->u.databaseRecord = ext;
1939 npr = zget_surrogateDiagRec(
1941 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
1942 "ZOOM_record, type ext");
1945 npl->records[i] = npr;
1947 records = (Z_Records*) odr_malloc(odr, sizeof(*records));
1948 records->which = Z_Records_DBOSD;
1949 records->u.databaseOrSurDiagnostics = npl;
1954 struct cql_node *yf::Zoom::Impl::convert_cql_fields(struct cql_node *cn,
1957 struct cql_node *r = 0;
1965 std::map<std::string,std::string>::const_iterator it;
1966 it = fieldmap.find(cn->u.st.index);
1967 if (it == fieldmap.end())
1969 if (it->second.length())
1970 cn->u.st.index = odr_strdup(odr, it->second.c_str());
1976 r = convert_cql_fields(cn->u.boolean.left, odr);
1978 r = convert_cql_fields(cn->u.boolean.right, odr);
1981 r = convert_cql_fields(cn->u.sort.search, odr);
1987 void yf::Zoom::Frontend::log_diagnostic(mp::Package &package,
1988 int error, const char *addinfo)
1990 const char *err_msg = yaz_diag_bib1_str(error);
1992 package.log("zoom", YLOG_WARN, "Diagnostic %d %s: %s",
1993 error, err_msg, addinfo);
1995 package.log("zoom", YLOG_WARN, "Diagnostic %d %s:",
1999 yf::Zoom::BackendPtr yf::Zoom::Frontend::explain_search(mp::Package &package,
2000 std::string &database,
2004 std::string torus_url,
2005 std::string &torus_db,
2010 BackendPtr b(new Backend);
2012 b->m_frontend_database = database;
2013 b->enable_explain = true;
2015 Z_GDU *gdu = package.request().get();
2016 Z_APDU *apdu_req = gdu->u.z3950;
2017 Z_SearchRequest *sr = apdu_req->u.searchRequest;
2018 Z_Query *query = sr->query;
2020 if (!m_p->explain_xsp)
2022 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
2024 odr_strdup(odr, "IR-Explain---1 unsupported. "
2025 "Torus explain_xsl not defined");
2028 else if (query->which == Z_Query_type_104 &&
2029 query->u.type_104->which == Z_External_CQL)
2031 std::string torus_query(query->u.type_104->u.cql);
2032 xmlDoc *doc = mp::get_searchable(package, torus_url, "",
2035 if (m_p->explain_xsp)
2037 xmlDoc *rec_res = xsltApplyStylesheet(m_p->explain_xsp, doc, 0);
2044 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
2045 *addinfo = odr_strdup(odr, "Torus server unavailable or "
2046 "incorrectly configured");
2050 xmlNode *ptr = xmlDocGetRootElement(doc);
2053 xml_node_search(ptr, &hits, 0);
2055 Z_APDU *apdu_res = odr.create_searchResponse(apdu_req, 0, 0);
2056 apdu_res->u.searchResponse->resultCount = odr_intdup(odr, hits);
2057 package.response() = apdu_res;
2061 xmlFreeDoc(b->explain_doc);
2062 b->explain_doc = doc;
2067 *error = YAZ_BIB1_QUERY_TYPE_UNSUPP;
2068 *addinfo = odr_strdup(odr, "IR-Explain---1 only supports CQL");
2073 static bool wait_conn(COMSTACK cs, int secs)
2075 struct yaz_poll_fd pfd;
2077 yaz_poll_add(pfd.input_mask, yaz_poll_except);
2078 if (cs->io_pending && CS_WANT_WRITE)
2079 yaz_poll_add(pfd.input_mask, yaz_poll_write);
2080 if (cs->io_pending & CS_WANT_READ)
2081 yaz_poll_add(pfd.input_mask, yaz_poll_read);
2083 pfd.fd = cs_fileno(cs);
2084 pfd.client_data = 0;
2086 int ret = yaz_poll(&pfd, 1, secs, 0);
2090 bool yf::Zoom::Impl::check_proxy(const char *proxy)
2093 const char *uri = "http://localhost/";
2096 bool outcome = false;
2097 conn = cs_create_host_proxy(uri, 0, &add, proxy);
2102 Z_GDU *gdu = z_get_HTTP_Request_uri(odr, uri, 0, 1);
2103 gdu->u.HTTP_Request->method = odr_strdup(odr, "GET");
2105 if (z_GDU(odr, &gdu, 0, 0))
2108 char *buf = odr_getbuf(odr, &len, 0);
2110 int ret = cs_connect(conn, add);
2111 if (ret > 0 || (ret == 0 && wait_conn(conn, 1)))
2115 ret = cs_put(conn, buf, len);
2118 if (!wait_conn(conn, proxy_timeout))
2129 bool yf::Zoom::Frontend::retry(mp::Package &package,
2132 int &error, char **addinfo,
2133 int &proxy_step, int &same_retries,
2136 if (b && b->m_proxy.length() && !m_p->check_proxy(b->m_proxy.c_str()))
2138 log_diagnostic(package, error, *addinfo);
2139 package.log("zoom", YLOG_LOG, "proxy %s fails", b->m_proxy.c_str());
2141 if (proxy_step) // there is a failover
2144 package.log("zoom", YLOG_WARN, "search failed: trying next proxy");
2147 error = YAZ_BIB1_PROXY_FAILURE;
2148 *addinfo = odr_strdup(odr, b->m_proxy.c_str());
2150 else if (same_retries == 0 && proxy_retries == 0)
2152 log_diagnostic(package, error, *addinfo);
2154 package.log("zoom", YLOG_WARN, "search failed: retry");
2162 void yf::Zoom::Frontend::handle_search(mp::Package &package)
2164 Z_GDU *gdu = package.request().get();
2165 Z_APDU *apdu_req = gdu->u.z3950;
2166 Z_APDU *apdu_res = 0;
2168 Z_SearchRequest *sr = apdu_req->u.searchRequest;
2169 if (sr->num_databaseNames != 1)
2171 int error = YAZ_BIB1_TOO_MANY_DATABASES_SPECIFIED;
2172 log_diagnostic(package, error, 0);
2173 apdu_res = odr.create_searchResponse(apdu_req, error, 0);
2174 package.response() = apdu_res;
2178 int same_retries = 0;
2179 int proxy_retries = 0;
2185 std::string db(sr->databaseNames[0]);
2187 BackendPtr b = get_backend_from_databases(package, db, &error,
2188 &addinfo, odr, &proxy_step);
2191 if (retry(package, odr, b, error, &addinfo, proxy_step,
2192 same_retries, proxy_retries))
2197 log_diagnostic(package, error, addinfo);
2198 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2199 package.response() = apdu_res;
2202 if (!b || b->enable_explain)
2205 b->set_option("setname", "default");
2207 bool enable_pz2_retrieval = false;
2208 bool enable_pz2_transform = false;
2209 bool enable_record_transform = false;
2210 bool assume_marc8_charset = false;
2211 prepare_elements(b, sr->preferredRecordSyntax, 0 /*element_set_name */,
2212 enable_pz2_retrieval,
2213 enable_pz2_transform,
2214 enable_record_transform,
2215 assume_marc8_charset);
2218 Z_Query *query = sr->query;
2219 mp::wrbuf ccl_wrbuf;
2220 mp::wrbuf pqf_wrbuf;
2221 std::string sortkeys;
2223 if (query->which == Z_Query_type_1 || query->which == Z_Query_type_101)
2226 yaz_rpnquery_to_wrbuf(pqf_wrbuf, query->u.type_1);
2228 else if (query->which == Z_Query_type_2)
2231 wrbuf_write(ccl_wrbuf, (const char *) query->u.type_2->buf,
2232 query->u.type_2->len);
2234 else if (query->which == Z_Query_type_104 &&
2235 query->u.type_104->which == Z_External_CQL)
2238 const char *cql = query->u.type_104->u.cql;
2239 CQL_parser cp = cql_parser_create();
2240 int r = cql_parser_string(cp, cql);
2241 package.log("zoom", YLOG_LOG, "CQL: %s", cql);
2244 cql_parser_destroy(cp);
2245 error = YAZ_BIB1_MALFORMED_QUERY;
2246 const char *addinfo = "CQL syntax error";
2247 log_diagnostic(package, error, addinfo);
2249 odr.create_searchResponse(apdu_req, error, addinfo);
2250 package.response() = apdu_res;
2253 struct cql_node *cn = cql_parser_result(cp);
2254 struct cql_node *cn_error = m_p->convert_cql_fields(cn, odr);
2257 // hopefully we are getting a ptr to a index+relation+term node
2258 error = YAZ_BIB1_UNSUPP_USE_ATTRIBUTE;
2260 if (cn_error->which == CQL_NODE_ST)
2261 addinfo = cn_error->u.st.index;
2263 log_diagnostic(package, error, addinfo);
2264 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2265 package.response() = apdu_res;
2266 cql_parser_destroy(cp);
2269 r = cql_to_ccl(cn, wrbuf_vp_puts, ccl_wrbuf);
2272 error = YAZ_BIB1_MALFORMED_QUERY;
2273 const char *addinfo = "CQL to CCL conversion error";
2275 log_diagnostic(package, error, addinfo);
2276 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2277 package.response() = apdu_res;
2278 cql_parser_destroy(cp);
2282 mp::wrbuf sru_sortkeys_wrbuf;
2283 if (cql_sortby_to_sortkeys(cn, wrbuf_vp_puts, sru_sortkeys_wrbuf))
2285 error = YAZ_BIB1_ILLEGAL_SORT_RELATION;
2286 const char *addinfo = "CQL to CCL sortby conversion";
2288 log_diagnostic(package, error, addinfo);
2289 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2290 package.response() = apdu_res;
2291 cql_parser_destroy(cp);
2294 mp::wrbuf sort_spec_wrbuf;
2295 yaz_srw_sortkeys_to_sort_spec(wrbuf_cstr(sru_sortkeys_wrbuf),
2297 yaz_tok_cfg_t tc = yaz_tok_cfg_create();
2298 yaz_tok_parse_t tp =
2299 yaz_tok_parse_buf(tc, wrbuf_cstr(sort_spec_wrbuf));
2300 yaz_tok_cfg_destroy(tc);
2302 /* go through sortspec and map fields */
2303 int token = yaz_tok_move(tp);
2304 while (token != YAZ_TOK_EOF)
2306 if (token == YAZ_TOK_STRING)
2308 const char *field = yaz_tok_parse_string(tp);
2309 std::map<std::string,std::string>::iterator it;
2310 it = b->sptr->sortmap.find(field);
2311 if (it != b->sptr->sortmap.end())
2312 sortkeys += it->second;
2317 token = yaz_tok_move(tp);
2318 if (token == YAZ_TOK_STRING)
2320 sortkeys += yaz_tok_parse_string(tp);
2322 if (token != YAZ_TOK_EOF)
2325 token = yaz_tok_move(tp);
2328 yaz_tok_parse_destroy(tp);
2329 cql_parser_destroy(cp);
2333 error = YAZ_BIB1_QUERY_TYPE_UNSUPP;
2334 const char *addinfo = 0;
2335 log_diagnostic(package, error, addinfo);
2336 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2337 package.response() = apdu_res;
2341 if (ccl_wrbuf.len())
2344 assert(pqf_wrbuf.len() == 0);
2346 struct ccl_rpn_node *cn;
2347 package.log("zoom", YLOG_LOG, "CCL: %s", wrbuf_cstr(ccl_wrbuf));
2348 cn = ccl_find_str(b->sptr->ccl_bibset, wrbuf_cstr(ccl_wrbuf),
2352 char *addinfo = odr_strdup_null(odr, ccl_err_msg(cerror));
2353 error = YAZ_BIB1_MALFORMED_QUERY;
2357 case CCL_ERR_UNKNOWN_QUAL:
2358 case CCL_ERR_TRUNC_NOT_LEFT:
2359 case CCL_ERR_TRUNC_NOT_RIGHT:
2360 case CCL_ERR_TRUNC_NOT_BOTH:
2361 #ifdef CCL_ERR_TRUNC_NOT_EMBED
2362 case CCL_ERR_TRUNC_NOT_EMBED:
2364 #ifdef CCL_ERR_TRUNC_NOT_SINGLE
2365 case CCL_ERR_TRUNC_NOT_SINGLE:
2367 error = YAZ_BIB1_UNSUPP_SEARCH;
2370 log_diagnostic(package, error, addinfo);
2371 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2372 package.response() = apdu_res;
2375 ccl_pquery(pqf_wrbuf, cn);
2376 package.log("zoom", YLOG_LOG, "RPN: %s", wrbuf_cstr(pqf_wrbuf));
2380 assert(pqf_wrbuf.len());
2382 ZOOM_query q = ZOOM_query_create();
2383 ZOOM_query_sortby2(q, b->sptr->sortStrategy.c_str(), sortkeys.c_str());
2385 Z_FacetList *fl = 0;
2387 // Facets for request.. And later for reponse
2389 fl = yaz_oi_get_facetlist(&sr->otherInfo);
2391 fl = yaz_oi_get_facetlist(&sr->additionalSearchInfo);
2393 if (b->get_option("sru"))
2397 zquery = p_query_rpn(odr, wrbuf_cstr(pqf_wrbuf));
2400 if (!strcmp(b->get_option("sru"), "solr"))
2402 solr_transform_t cqlt = solr_transform_create();
2404 status = solr_transform_rpn2solr_wrbuf(cqlt, wrb, zquery);
2406 solr_transform_close(cqlt);
2410 status = cql_transform_rpn2cql_wrbuf(b->cqlt, wrb, zquery);
2414 ZOOM_query_cql(q, wrbuf_cstr(wrb));
2415 package.log("zoom", YLOG_LOG, "CQL: %s", wrbuf_cstr(wrb));
2416 b->search(q, &hits, &error, &addinfo, &fl, odr);
2418 ZOOM_query_destroy(q);
2422 error = YAZ_BIB1_MALFORMED_QUERY;
2423 const char *addinfo = "can not convert from RPN to CQL/Solr";
2424 log_diagnostic(package, error, addinfo);
2425 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2426 package.response() = apdu_res;
2432 ZOOM_query_prefix(q, wrbuf_cstr(pqf_wrbuf));
2433 package.log("zoom", YLOG_LOG, "search PQF: %s", wrbuf_cstr(pqf_wrbuf));
2434 b->search(q, &hits, &error, &addinfo, &fl, odr);
2435 ZOOM_query_destroy(q);
2440 if (retry(package, odr, b, error, &addinfo, proxy_step,
2441 same_retries, proxy_retries))
2445 const char *element_set_name = 0;
2446 Odr_int number_to_present = 0;
2448 mp::util::piggyback_sr(sr, hits, number_to_present, &element_set_name);
2450 Odr_int number_of_records_returned = 0;
2451 Z_Records *records = get_records(
2453 0, number_to_present, &error, &addinfo,
2454 &number_of_records_returned, odr, b, sr->preferredRecordSyntax,
2457 log_diagnostic(package, error, addinfo);
2458 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2461 apdu_res->u.searchResponse->records = records;
2462 apdu_res->u.searchResponse->numberOfRecordsReturned =
2463 odr_intdup(odr, number_of_records_returned);
2465 apdu_res->u.searchResponse->resultCount = odr_intdup(odr, hits);
2467 yaz_oi_set_facetlist(&apdu_res->u.searchResponse->additionalSearchInfo,
2469 package.response() = apdu_res;
2472 void yf::Zoom::Frontend::handle_present(mp::Package &package)
2474 Z_GDU *gdu = package.request().get();
2475 Z_APDU *apdu_req = gdu->u.z3950;
2476 Z_APDU *apdu_res = 0;
2477 Z_PresentRequest *pr = apdu_req->u.presentRequest;
2482 package.response() = odr.create_presentResponse(
2483 apdu_req, YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST, 0);
2486 const char *element_set_name = 0;
2487 Z_RecordComposition *comp = pr->recordComposition;
2488 if (comp && comp->which != Z_RecordComp_simple)
2490 package.response() = odr.create_presentResponse(
2492 YAZ_BIB1_PRESENT_COMP_SPEC_PARAMETER_UNSUPP, 0);
2495 if (comp && comp->u.simple->which == Z_ElementSetNames_generic)
2496 element_set_name = comp->u.simple->u.generic;
2497 Odr_int number_of_records_returned = 0;
2501 if (m_backend->enable_explain)
2503 Z_Records *records =
2504 get_explain_records(
2506 *pr->resultSetStartPoint - 1, *pr->numberOfRecordsRequested,
2507 &error, &addinfo, &number_of_records_returned, odr, m_backend,
2508 pr->preferredRecordSyntax, element_set_name);
2510 apdu_res = odr.create_presentResponse(apdu_req, error, addinfo);
2513 apdu_res->u.presentResponse->records = records;
2514 apdu_res->u.presentResponse->numberOfRecordsReturned =
2515 odr_intdup(odr, number_of_records_returned);
2517 package.response() = apdu_res;
2521 Z_Records *records =
2522 get_records(package,
2523 *pr->resultSetStartPoint - 1, *pr->numberOfRecordsRequested,
2524 &error, &addinfo, &number_of_records_returned, odr, m_backend,
2525 pr->preferredRecordSyntax, element_set_name);
2527 apdu_res = odr.create_presentResponse(apdu_req, error, addinfo);
2530 apdu_res->u.presentResponse->records = records;
2531 apdu_res->u.presentResponse->numberOfRecordsReturned =
2532 odr_intdup(odr, number_of_records_returned);
2534 package.response() = apdu_res;
2538 void yf::Zoom::Frontend::handle_package(mp::Package &package)
2540 Z_GDU *gdu = package.request().get();
2543 else if (gdu->which == Z_GDU_Z3950)
2545 Z_APDU *apdu_req = gdu->u.z3950;
2548 wrbuf_rewind(m_backend->m_apdu_wrbuf);
2549 if (apdu_req->which == Z_APDU_initRequest)
2552 package.response() = odr.create_close(
2554 Z_Close_protocolError,
2557 else if (apdu_req->which == Z_APDU_searchRequest)
2559 handle_search(package);
2561 else if (apdu_req->which == Z_APDU_presentRequest)
2563 handle_present(package);
2568 package.response() = odr.create_close(
2570 Z_Close_protocolError,
2571 "zoom filter cannot handle this APDU");
2572 package.session().close();
2576 WRBUF w = m_backend->m_apdu_wrbuf;
2577 package.log_write(wrbuf_buf(w), wrbuf_len(w));
2582 package.session().close();
2586 std::string escape_cql_term(std::string inp)
2589 size_t l = inp.length();
2591 for (i = 0; i < l; i++)
2593 if (strchr("*?^\"", inp[i]))
2600 void yf::Zoom::Frontend::auth(mp::Package &package, Z_InitRequest *req,
2601 int *error, char **addinfo, ODR odr)
2603 if (m_p->torus_auth_url.length() == 0)
2607 std::string password;
2608 if (req->idAuthentication)
2610 Z_IdAuthentication *auth = req->idAuthentication;
2611 switch (auth->which)
2613 case Z_IdAuthentication_open:
2616 const char *cp = strchr(auth->u.open, '/');
2619 user.assign(auth->u.open, cp - auth->u.open);
2620 password.assign(cp + 1);
2624 case Z_IdAuthentication_idPass:
2625 if (auth->u.idPass->userId)
2626 user.assign(auth->u.idPass->userId);
2627 if (auth->u.idPass->password)
2628 password.assign(auth->u.idPass->password);
2633 std::string ip = package.origin().get_address();
2634 yaz_log(YLOG_LOG, "IP=%s", ip.c_str());
2636 std::string torus_query;
2639 if (user.length() && password.length())
2641 torus_query = "userName==\"" + escape_cql_term(user) +
2642 "\" and password==\"" + escape_cql_term(password) + "\"";
2643 failure_code = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
2647 const char *ip_cstr = ip.c_str();
2648 const char *cp = strchr(ip_cstr, ':');
2652 torus_query = "ip encloses/net.ipaddress \"";
2653 torus_query += escape_cql_term(std::string(ip_cstr));
2654 torus_query += "\"";
2655 failure_code = YAZ_BIB1_INIT_AC_BLOCKED_NETWORK_ADDRESS;
2658 std::string dummy_db;
2659 std::string dummy_realm;
2660 xmlDoc *doc = mp::get_searchable(package, m_p->torus_auth_url, dummy_db,
2661 torus_query, dummy_realm, m_p->proxy);
2664 // something fundamental broken in lookup.
2665 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
2666 *addinfo = odr_strdup(odr, "zoom: torus server unavailable or "
2667 "incorrectly configured.");
2670 const xmlNode *ptr = xmlDocGetRootElement(doc);
2671 if (ptr && ptr->type == XML_ELEMENT_NODE)
2673 if (strcmp((const char *) ptr->name, "records") == 0)
2675 ptr = ptr->children;
2676 while (ptr && ptr->type != XML_ELEMENT_NODE)
2679 if (ptr && strcmp((const char *) ptr->name, "record") == 0)
2681 ptr = ptr->children;
2682 while (ptr && ptr->type != XML_ELEMENT_NODE)
2685 if (ptr && strcmp((const char *) ptr->name, "layer") == 0)
2687 ptr = ptr->children;
2688 while (ptr && ptr->type != XML_ELEMENT_NODE)
2693 if (ptr && ptr->type == XML_ELEMENT_NODE &&
2694 !strcmp((const char *) ptr->name, "identityId"))
2701 *error = failure_code;
2704 session_realm = mp::xml::get_text(ptr);
2707 void yf::Zoom::Impl::process(mp::Package &package)
2709 FrontendPtr f = get_frontend(package);
2710 Z_GDU *gdu = package.request().get();
2712 if (f->m_is_virtual)
2714 f->handle_package(package);
2716 else if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which ==
2719 Z_InitRequest *req = gdu->u.z3950->u.initRequest;
2720 f->m_init_gdu = gdu;
2723 Z_APDU *apdu = odr.create_initResponse(gdu->u.z3950, 0, 0);
2724 Z_InitResponse *resp = apdu->u.initResponse;
2727 static const int masks[] = {
2732 for (i = 0; masks[i] != -1; i++)
2733 if (ODR_MASK_GET(req->options, masks[i]))
2734 ODR_MASK_SET(resp->options, masks[i]);
2736 static const int versions[] = {
2737 Z_ProtocolVersion_1,
2738 Z_ProtocolVersion_2,
2739 Z_ProtocolVersion_3,
2742 for (i = 0; versions[i] != -1; i++)
2743 if (ODR_MASK_GET(req->protocolVersion, versions[i]))
2744 ODR_MASK_SET(resp->protocolVersion, versions[i]);
2748 *resp->preferredMessageSize = *req->preferredMessageSize;
2749 *resp->maximumRecordSize = *req->maximumRecordSize;
2753 f->auth(package, req, &error, &addinfo, odr);
2756 resp->userInformationField =
2757 zget_init_diagnostics(odr, error, addinfo);
2759 package.session().close();
2762 f->m_is_virtual = true;
2763 package.response() = apdu;
2768 release_frontend(package);
2772 static mp::filter::Base* filter_creator()
2774 return new mp::filter::Zoom;
2778 struct metaproxy_1_filter_struct metaproxy_1_filter_zoom = {
2789 * c-file-style: "Stroustrup"
2790 * indent-tabs-mode: nil
2792 * vim: shiftwidth=4 tabstop=8 expandtab