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, const char *value, size_t l);
116 void set_option(const char *name, std::string value);
117 const char *get_option(const char *name);
118 void get_zoom_error(int *error, char **addinfo, ODR odr);
120 class Zoom::Frontend : boost::noncopyable {
125 std::string session_realm;
126 yazpp_1::GDU m_init_gdu;
127 BackendPtr m_backend;
128 void handle_package(mp::Package &package);
129 void handle_search(mp::Package &package);
130 void auth(mp::Package &package, Z_InitRequest *req,
131 int *error, char **addinfo, ODR odr);
133 BackendPtr explain_search(mp::Package &package,
134 std::string &database,
138 std::string torus_url,
139 std::string &torus_db,
141 void handle_present(mp::Package &package);
142 BackendPtr get_backend_from_databases(mp::Package &package,
143 std::string &database,
149 bool create_content_session(mp::Package &package,
154 std::string authentication,
158 void prepare_elements(BackendPtr b,
159 Odr_oid *preferredRecordSyntax,
160 const char *element_set_name,
161 bool &enable_pz2_retrieval,
162 bool &enable_pz2_transform,
163 bool &enable_record_transform,
164 bool &assume_marc8_charset);
166 Z_Records *get_records(Package &package,
168 Odr_int number_to_present,
171 Odr_int *number_of_records_returned,
172 ODR odr, BackendPtr b,
173 Odr_oid *preferredRecordSyntax,
174 const char *element_set_name);
175 Z_Records *get_explain_records(Package &package,
177 Odr_int number_to_present,
180 Odr_int *number_of_records_returned,
181 ODR odr, BackendPtr b,
182 Odr_oid *preferredRecordSyntax,
183 const char *element_set_name);
184 bool retry(mp::Package &package,
187 int &error, char **addinfo,
188 int &proxy_step, int &same_retries,
190 void log_diagnostic(mp::Package &package,
191 int error, const char *addinfo);
193 Frontend(Impl *impl);
197 friend class Frontend;
201 void process(metaproxy_1::Package & package);
202 void configure(const xmlNode * ptr, bool test_only,
205 void configure_local_records(const xmlNode * ptr, bool test_only);
206 bool check_proxy(const char *proxy);
210 FrontendPtr get_frontend(mp::Package &package);
211 void release_frontend(mp::Package &package);
212 SearchablePtr parse_torus_record(const xmlNode *ptr);
213 struct cql_node *convert_cql_fields(struct cql_node *cn, ODR odr);
214 std::map<mp::Session, FrontendPtr> m_clients;
215 boost::mutex m_mutex;
216 boost::condition m_cond_session_ready;
217 std::string torus_searchable_url;
218 std::string torus_content_url;
219 std::string torus_auth_url;
220 std::string default_realm;
221 std::map<std::string,std::string> fieldmap;
223 std::string file_path;
224 std::string content_proxy_server;
225 std::string content_tmp_file;
226 std::string content_config_file;
229 std::string element_transform;
230 std::string element_raw;
231 std::string element_passthru;
233 xsltStylesheetPtr explain_xsp;
234 xsltStylesheetPtr record_xsp;
235 std::map<std::string,SearchablePtr> s_map;
236 std::string zoom_timeout;
243 static xmlNode *xml_node_search(xmlNode *ptr, int *num, int m)
247 if (ptr->type == XML_ELEMENT_NODE &&
248 !strcmp((const char *) ptr->name, "recordData"))
254 else // else: we don't want to find nested nodes
256 xmlNode *ret_node = xml_node_search(ptr->children, num, m);
265 // define Pimpl wrapper forwarding to Impl
267 yf::Zoom::Zoom() : m_p(new Impl)
272 { // must have a destructor because of boost::scoped_ptr
275 void yf::Zoom::configure(const xmlNode *xmlnode, bool test_only,
278 m_p->configure(xmlnode, test_only, path);
281 void yf::Zoom::process(mp::Package &package) const
283 m_p->process(package);
287 // define Implementation stuff
289 yf::Zoom::Backend::Backend()
291 m_connection = ZOOM_connection_create(0);
292 ZOOM_connection_save_apdu_wrbuf(m_connection, m_apdu_wrbuf);
295 enable_cproxy = true;
296 enable_explain = false;
301 yf::Zoom::Backend::~Backend()
304 xsltFreeStylesheet(xsp);
306 xmlFreeDoc(explain_doc);
307 cql_transform_close(cqlt);
308 ZOOM_connection_destroy(m_connection);
309 ZOOM_resultset_destroy(m_resultset);
313 void yf::Zoom::Backend::get_zoom_error(int *error, char **addinfo,
317 const char *zoom_addinfo = 0;
318 const char *dset = 0;
319 int error0 = ZOOM_connection_error_x(m_connection, &msg,
320 &zoom_addinfo, &dset);
326 if (!strcmp(dset, "info:srw/diagnostic/1"))
327 *error = yaz_diag_srw_to_bib1(error0);
328 else if (!strcmp(dset, "Bib-1"))
330 else if (!strcmp(dset, "ZOOM"))
332 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
333 if (error0 == ZOOM_ERROR_INIT)
334 *error = YAZ_BIB1_INIT_AC_AUTHENTICATION_SYSTEM_ERROR;
335 else if (error0 == ZOOM_ERROR_DECODE)
339 if (strstr(zoom_addinfo, "Authentication") ||
340 strstr(zoom_addinfo, "authentication"))
341 *error = YAZ_BIB1_INIT_AC_AUTHENTICATION_SYSTEM_ERROR;
346 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
348 *addinfo = (char *) odr_malloc(
349 odr, 30 + strlen(dset) + strlen(msg) +
350 (zoom_addinfo ? strlen(zoom_addinfo) : 0));
352 if (zoom_addinfo && *zoom_addinfo)
354 strcpy(*addinfo, zoom_addinfo);
355 strcat(*addinfo, " ");
357 sprintf(*addinfo + strlen(*addinfo), "(%s %d %s)", dset, error0, msg);
361 void yf::Zoom::Backend::connect(std::string zurl,
362 int *error, char **addinfo,
365 size_t h = zurl.find_first_of('#');
366 if (h != std::string::npos)
368 ZOOM_connection_connect(m_connection, zurl.length() ? zurl.c_str() : 0, 0);
369 get_zoom_error(error, addinfo, odr);
373 void yf::Zoom::Backend::search(ZOOM_query q, Odr_int *hits,
374 int *error, char **addinfo, Z_FacetList **flp,
377 ZOOM_resultset_destroy(m_resultset);
381 WRBUF w = wrbuf_alloc();
382 yaz_facet_list_to_wrbuf(w, *flp);
383 set_option("facets", wrbuf_cstr(w));
386 m_resultset = ZOOM_connection_search(m_connection, q);
387 get_zoom_error(error, addinfo, odr);
389 *hits = ZOOM_resultset_size(m_resultset);
393 size_t num_facets = ZOOM_resultset_facets_size(m_resultset);
397 Z_FacetList *fl = (Z_FacetList *) odr_malloc(odr, sizeof(*fl));
398 fl->elements = (Z_FacetField **)
399 odr_malloc(odr, num_facets * sizeof(*fl->elements));
400 for (i = 0; i < num_facets; i++)
402 ZOOM_facet_field ff =
403 ZOOM_resultset_get_facet_field_by_index(m_resultset, i);
406 Z_AttributeList *al = (Z_AttributeList *)
407 odr_malloc(odr, sizeof(*al));
408 al->num_attributes = 1;
409 al->attributes = (Z_AttributeElement **)
410 odr_malloc(odr, sizeof(*al->attributes));
411 Z_AttributeElement *ae = al->attributes[0] = (Z_AttributeElement *)
412 odr_malloc(odr, sizeof(**al->attributes));
413 ae->attributeSet = 0;
414 ae->attributeType = odr_intdup(odr, 1);
415 ae->which = Z_AttributeValue_complex;
416 ae->value.complex = (Z_ComplexAttribute *)
417 odr_malloc(odr, sizeof(*ae->value.complex));
418 ae->value.complex->num_list = 1;
419 ae->value.complex->list = (Z_StringOrNumeric **)
420 odr_malloc(odr, sizeof(**ae->value.complex->list));
421 ae->value.complex->list[0] = (Z_StringOrNumeric *)
422 odr_malloc(odr, sizeof(**ae->value.complex->list));
423 ae->value.complex->list[0]->which = Z_StringOrNumeric_string;
424 ae->value.complex->list[0]->u.string =
425 odr_strdup(odr, ZOOM_facet_field_name(ff));
426 ae->value.complex->num_semanticAction = 0;
427 ae->value.complex->semanticAction = 0;
429 int num_terms = ZOOM_facet_field_term_count(ff);
430 fl->elements[i] = (Z_FacetField *)
431 odr_malloc(odr, sizeof(Z_FacetField));
432 fl->elements[i]->attributes = al;
433 fl->elements[i]->num_terms = num_terms;
434 fl->elements[i]->terms = (Z_FacetTerm **)
435 odr_malloc(odr, num_terms * sizeof(Z_FacetTerm *));
437 for (j = 0; j < num_terms; j++)
440 const char *a_term = ZOOM_facet_field_get_term(ff, j, &freq);
441 Z_FacetTerm *ft = (Z_FacetTerm *) odr_malloc(odr, sizeof(*ft));
442 ft->term = z_Term_create(odr, Z_Term_general, a_term,
444 ft->count = odr_intdup(odr, freq);
446 fl->elements[i]->terms[j] = ft;
454 void yf::Zoom::Backend::present(Odr_int start, Odr_int number,
456 int *error, char **addinfo, ODR odr)
458 ZOOM_resultset_records(m_resultset, recs, start, number);
459 get_zoom_error(error, addinfo, odr);
463 void yf::Zoom::Backend::set_option(const char *name, const char *value, size_t l)
465 ZOOM_connection_option_setl(m_connection, name, value, l);
468 void yf::Zoom::Backend::set_option(const char *name, const char *value)
470 ZOOM_connection_option_set(m_connection, name, value);
472 ZOOM_resultset_option_set(m_resultset, name, value);
475 void yf::Zoom::Backend::set_option(const char *name, std::string value)
477 set_option(name, value.c_str());
480 const char *yf::Zoom::Backend::get_option(const char *name)
482 return ZOOM_connection_option_get(m_connection, name);
485 yf::Zoom::Searchable::Searchable(CCL_bibset base)
488 use_turbomarc = true;
489 sortStrategy = "embed";
490 ccl_bibset = ccl_qual_dup(base);
493 yf::Zoom::Searchable::~Searchable()
495 ccl_qual_rm(&ccl_bibset);
498 yf::Zoom::Frontend::Frontend(Impl *impl) :
499 m_p(impl), m_is_virtual(false), m_in_use(true)
503 yf::Zoom::Frontend::~Frontend()
507 yf::Zoom::FrontendPtr yf::Zoom::Impl::get_frontend(mp::Package &package)
509 boost::mutex::scoped_lock lock(m_mutex);
511 std::map<mp::Session,yf::Zoom::FrontendPtr>::iterator it;
515 it = m_clients.find(package.session());
516 if (it == m_clients.end())
519 if (!it->second->m_in_use)
521 it->second->m_in_use = true;
524 m_cond_session_ready.wait(lock);
526 FrontendPtr f(new Frontend(this));
527 m_clients[package.session()] = f;
532 void yf::Zoom::Impl::release_frontend(mp::Package &package)
534 boost::mutex::scoped_lock lock(m_mutex);
535 std::map<mp::Session,yf::Zoom::FrontendPtr>::iterator it;
537 it = m_clients.find(package.session());
538 if (it != m_clients.end())
540 if (package.session().is_closed())
546 it->second->m_in_use = false;
548 m_cond_session_ready.notify_all();
552 yf::Zoom::Impl::Impl() :
553 apdu_log(false), element_transform("pz2") , element_raw("raw") ,
554 element_passthru("F"),
555 zoom_timeout("40"), proxy_timeout(1)
557 bibset = ccl_qual_mk();
561 srand((unsigned int) time(0));
564 yf::Zoom::Impl::~Impl()
567 xsltFreeStylesheet(explain_xsp);
568 ccl_qual_rm(&bibset);
571 yf::Zoom::SearchablePtr yf::Zoom::Impl::parse_torus_record(const xmlNode *ptr)
573 Zoom::SearchablePtr s(new Searchable(bibset));
575 for (ptr = ptr->children; ptr; ptr = ptr->next)
577 if (ptr->type != XML_ELEMENT_NODE)
579 if (!strcmp((const char *) ptr->name, "layer"))
581 else if (!strcmp((const char *) ptr->name,
584 s->authentication = mp::xml::get_text(ptr);
586 else if (!strcmp((const char *) ptr->name,
587 "authenticationMode"))
589 s->authenticationMode = mp::xml::get_text(ptr);
591 else if (!strcmp((const char *) ptr->name,
594 s->cfAuth = mp::xml::get_text(ptr);
596 else if (!strcmp((const char *) ptr->name,
599 s->cfProxy = mp::xml::get_text(ptr);
601 else if (!strcmp((const char *) ptr->name,
604 s->cfSubDB = mp::xml::get_text(ptr);
606 else if (!strcmp((const char *) ptr->name,
609 s->contentConnector = mp::xml::get_text(ptr);
611 else if (!strcmp((const char *) ptr->name, "udb"))
613 s->udb = mp::xml::get_text(ptr);
615 else if (!strcmp((const char *) ptr->name, "zurl"))
617 s->target = mp::xml::get_text(ptr);
619 else if (!strcmp((const char *) ptr->name, "sru"))
621 s->sru = mp::xml::get_text(ptr);
623 else if (!strcmp((const char *) ptr->name, "SRUVersion") ||
624 !strcmp((const char *) ptr->name, "sruVersion"))
626 s->sru_version = mp::xml::get_text(ptr);
628 else if (!strcmp((const char *) ptr->name,
631 s->query_encoding = mp::xml::get_text(ptr);
633 else if (!strcmp((const char *) ptr->name,
636 s->piggyback = mp::xml::get_bool(ptr, true);
638 else if (!strcmp((const char *) ptr->name,
641 s->request_syntax = mp::xml::get_text(ptr);
643 else if (!strcmp((const char *) ptr->name,
646 s->element_set = mp::xml::get_text(ptr);
648 else if (!strcmp((const char *) ptr->name,
651 s->record_encoding = mp::xml::get_text(ptr);
653 else if (!strcmp((const char *) ptr->name,
656 s->transform_xsl_fname = mp::xml::get_text(ptr);
658 else if (!strcmp((const char *) ptr->name,
661 s->transform_xsl_content = mp::xml::get_text(ptr);
663 else if (!strcmp((const char *) ptr->name,
666 s->urlRecipe = mp::xml::get_text(ptr);
668 else if (!strcmp((const char *) ptr->name,
671 ; // useTurboMarc is ignored
673 else if (!strncmp((const char *) ptr->name,
676 std::string value = mp::xml::get_text(ptr);
677 if (value.length() > 0)
679 ccl_qual_fitem(s->ccl_bibset, value.c_str(),
680 (const char *) ptr->name + 7);
683 else if (!strncmp((const char *) ptr->name,
686 std::string value = mp::xml::get_text(ptr);
687 s->sortmap[(const char *) ptr->name + 8] = value;
689 else if (!strcmp((const char *) ptr->name,
692 s->sortStrategy = mp::xml::get_text(ptr);
694 else if (!strcmp((const char *) ptr->name,
697 s->extraArgs = mp::xml::get_text(ptr);
699 else if (!strcmp((const char *) ptr->name, "rpn2cql"))
700 s->rpn2cql_fname = mp::xml::get_text(ptr);
705 void yf::Zoom::Impl::configure_local_records(const xmlNode *ptr, bool test_only)
707 while (ptr && ptr->type != XML_ELEMENT_NODE)
712 if (!strcmp((const char *) ptr->name, "records"))
714 for (ptr = ptr->children; ptr; ptr = ptr->next)
716 if (ptr->type != XML_ELEMENT_NODE)
718 if (!strcmp((const char *) ptr->name, "record"))
720 SearchablePtr s = parse_torus_record(ptr);
723 std::string udb = s->udb;
728 throw mp::filter::FilterException
729 ("No udb for local torus record");
735 throw mp::filter::FilterException
737 + std::string((const char *) ptr->name)
738 + " in zoom filter inside element "
745 throw mp::filter::FilterException
747 + std::string((const char *) ptr->name)
748 + " in zoom filter inside element <torus>");
753 void yf::Zoom::Impl::configure(const xmlNode *ptr, bool test_only,
756 std::string explain_xslt_fname;
757 std::string record_xslt_fname;
763 for (ptr = ptr->children; ptr; ptr = ptr->next)
765 if (ptr->type != XML_ELEMENT_NODE)
767 else if (!strcmp((const char *) ptr->name, "torus"))
769 const struct _xmlAttr *attr;
770 for (attr = ptr->properties; attr; attr = attr->next)
772 if (!strcmp((const char *) attr->name, "url"))
773 torus_searchable_url = mp::xml::get_text(attr->children);
774 else if (!strcmp((const char *) attr->name, "content_url"))
775 torus_content_url = mp::xml::get_text(attr->children);
776 else if (!strcmp((const char *) attr->name, "auth_url"))
777 torus_auth_url = mp::xml::get_text(attr->children);
778 else if (!strcmp((const char *) attr->name, "realm"))
779 default_realm = mp::xml::get_text(attr->children);
780 else if (!strcmp((const char *) attr->name, "xsldir"))
781 xsldir = mp::xml::get_text(attr->children);
782 else if (!strcmp((const char *) attr->name, "element_transform"))
783 element_transform = mp::xml::get_text(attr->children);
784 else if (!strcmp((const char *) attr->name, "element_raw"))
785 element_raw = mp::xml::get_text(attr->children);
786 else if (!strcmp((const char *) attr->name, "element_passthru"))
787 element_passthru = mp::xml::get_text(attr->children);
788 else if (!strcmp((const char *) attr->name, "proxy"))
789 proxy = mp::xml::get_text(attr->children);
790 else if (!strcmp((const char *) attr->name, "explain_xsl"))
791 explain_xslt_fname = mp::xml::get_text(attr->children);
792 else if (!strcmp((const char *) attr->name, "record_xsl"))
793 record_xslt_fname = mp::xml::get_text(attr->children);
795 throw mp::filter::FilterException(
796 "Bad attribute " + std::string((const char *)
799 // If content_url is not given, use value of searchable, to
800 // ensure backwards compatibility
801 if (!torus_content_url.length())
802 torus_content_url = torus_searchable_url;
803 configure_local_records(ptr->children, test_only);
805 else if (!strcmp((const char *) ptr->name, "cclmap"))
807 const char *addinfo = 0;
808 ccl_xml_config(bibset, ptr, &addinfo);
810 else if (!strcmp((const char *) ptr->name, "fieldmap"))
812 const struct _xmlAttr *attr;
813 std::string ccl_field;
814 std::string cql_field;
815 for (attr = ptr->properties; attr; attr = attr->next)
817 if (!strcmp((const char *) attr->name, "ccl"))
818 ccl_field = mp::xml::get_text(attr->children);
819 else if (!strcmp((const char *) attr->name, "cql"))
820 cql_field = mp::xml::get_text(attr->children);
822 throw mp::filter::FilterException(
823 "Bad attribute " + std::string((const char *)
826 if (cql_field.length())
827 fieldmap[cql_field] = ccl_field;
829 else if (!strcmp((const char *) ptr->name, "contentProxy"))
831 const struct _xmlAttr *attr;
832 for (attr = ptr->properties; attr; attr = attr->next)
834 if (!strcmp((const char *) attr->name, "server"))
837 "contentProxy's server attribute is deprecated");
839 "Specify config_file instead. For example:");
841 " content_file=\"/etc/cf-proxy/cproxy.cfg\"");
842 content_proxy_server = mp::xml::get_text(attr->children);
844 else if (!strcmp((const char *) attr->name, "tmp_file"))
845 content_tmp_file = mp::xml::get_text(attr->children);
846 else if (!strcmp((const char *) attr->name, "config_file"))
847 content_config_file = mp::xml::get_text(attr->children);
849 throw mp::filter::FilterException(
850 "Bad attribute " + std::string((const char *)
854 else if (!strcmp((const char *) ptr->name, "log"))
856 const struct _xmlAttr *attr;
857 for (attr = ptr->properties; attr; attr = attr->next)
859 if (!strcmp((const char *) attr->name, "apdu"))
860 apdu_log = mp::xml::get_bool(attr->children, false);
862 throw mp::filter::FilterException(
863 "Bad attribute " + std::string((const char *)
867 else if (!strcmp((const char *) ptr->name, "zoom"))
869 const struct _xmlAttr *attr;
870 for (attr = ptr->properties; attr; attr = attr->next)
872 if (!strcmp((const char *) attr->name, "timeout"))
873 zoom_timeout = mp::xml::get_text(attr->children);
874 else if (!strcmp((const char *) attr->name, "proxy_timeout"))
875 proxy_timeout = mp::xml::get_int(attr->children, 1);
877 throw mp::filter::FilterException(
878 "Bad attribute " + std::string((const char *)
884 throw mp::filter::FilterException
886 + std::string((const char *) ptr->name)
887 + " in zoom filter");
891 if (explain_xslt_fname.length())
893 const char *path = 0;
896 path = xsldir.c_str();
898 path = file_path.c_str();
901 char *cp = yaz_filepath_resolve(explain_xslt_fname.c_str(),
905 throw mp::filter::FilterException
906 ("Cannot read XSLT " + explain_xslt_fname);
909 xmlDoc *xsp_doc = xmlParseFile(cp);
912 throw mp::filter::FilterException
913 ("Cannot parse XSLT " + explain_xslt_fname);
916 explain_xsp = xsltParseStylesheetDoc(xsp_doc);
920 throw mp::filter::FilterException
921 ("Cannot parse XSLT " + explain_xslt_fname);
926 if (record_xslt_fname.length())
928 const char *path = 0;
931 path = xsldir.c_str();
933 path = file_path.c_str();
936 char *cp = yaz_filepath_resolve(record_xslt_fname.c_str(),
940 throw mp::filter::FilterException
941 ("Cannot read XSLT " + record_xslt_fname);
944 xmlDoc *xsp_doc = xmlParseFile(cp);
947 throw mp::filter::FilterException
948 ("Cannot parse XSLT " + record_xslt_fname);
951 record_xsp = xsltParseStylesheetDoc(xsp_doc);
955 throw mp::filter::FilterException
956 ("Cannot parse XSLT " + record_xslt_fname);
962 bool yf::Zoom::Frontend::create_content_session(mp::Package &package,
964 int *error, char **addinfo,
966 std::string authentication,
970 if (b->sptr->contentConnector.length())
972 std::string proxyhostname;
973 std::string tmp_file;
974 bool legacy_format = false;
976 if (m_p->content_proxy_server.length())
978 proxyhostname = m_p->content_proxy_server;
979 legacy_format = true;
982 if (m_p->content_tmp_file.length())
983 tmp_file = m_p->content_tmp_file;
985 if (m_p->content_config_file.length())
987 FILE *inf = fopen(m_p->content_config_file.c_str(), "r");
991 while (fgets(buf, sizeof(buf)-1, inf))
994 cp = strchr(buf, '#');
997 cp = strchr(buf, '\n');
1000 cp = strchr(buf, ':');
1004 while (cp1 != buf && cp1[-1] == ' ')
1010 if (!strcmp(buf, "proxyhostname"))
1012 if (!strcmp(buf, "sessiondir") && *cp)
1014 if (cp[strlen(cp)-1] == '/')
1015 cp[strlen(cp)-1] = '\0';
1016 tmp_file = std::string(cp) + std::string("/cf.XXXXXX.p");
1024 package.log("zoom", YLOG_WARN|YLOG_ERRNO,
1025 "unable to open content config %s",
1026 m_p->content_config_file.c_str());
1027 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1028 *addinfo = (char *) odr_malloc(odr, 70 + tmp_file.length());
1029 sprintf(*addinfo, "zoom: unable to open content config %s",
1030 m_p->content_config_file.c_str());
1035 if (proxyhostname.length() == 0)
1037 package.log("zoom", YLOG_WARN, "no proxyhostname");
1040 if (tmp_file.length() == 0)
1042 package.log("zoom", YLOG_WARN, "no tmp_file");
1046 char *fname = xstrdup(tmp_file.c_str());
1047 char *xx = strstr(fname, "XXXXXX");
1050 package.log("zoom", YLOG_WARN, "bad tmp_file %s", tmp_file.c_str());
1051 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1052 *addinfo = (char *) odr_malloc(odr, 60 + tmp_file.length());
1053 sprintf(*addinfo, "zoom: bad format of content tmp_file: %s",
1058 char tmp_char = xx[6];
1059 sprintf(xx, "%06d", ((unsigned) rand()) % 1000000);
1061 b->cproxy_host = std::string(xx) + "." + proxyhostname;
1063 b->cproxy_host = proxyhostname + "/" + xx;
1066 FILE *file = fopen(fname, "w");
1069 package.log("zoom", YLOG_WARN|YLOG_ERRNO, "create %s", fname);
1070 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1071 *addinfo = (char *) odr_malloc(odr, 50 + strlen(fname));
1072 sprintf(*addinfo, "zoom: could not create %s", fname);
1077 wrbuf_puts(w, "#content_proxy\n");
1078 wrbuf_printf(w, "connector: %s\n", b->sptr->contentConnector.c_str());
1079 if (authentication.length())
1080 wrbuf_printf(w, "auth: %s\n", authentication.c_str());
1082 wrbuf_printf(w, "proxy: %s\n", proxy.c_str());
1084 wrbuf_printf(w, "realm: %s\n", realm.c_str());
1086 fwrite(w.buf(), 1, w.len(), file);
1088 package.log("zoom", YLOG_LOG, "content file: %s", fname);
1094 yf::Zoom::BackendPtr yf::Zoom::Frontend::get_backend_from_databases(
1095 mp::Package &package,
1096 std::string &database, int *error, char **addinfo, mp::odr &odr,
1099 bool connection_reuse = false;
1102 std::list<BackendPtr>::const_iterator map_it;
1103 if (m_backend && !m_backend->enable_explain &&
1104 m_backend->m_frontend_database == database)
1106 connection_reuse = true;
1107 proxy = m_backend->m_proxy;
1110 std::string input_args;
1111 std::string torus_db;
1112 size_t db_arg_pos = database.find(',');
1113 if (db_arg_pos != std::string::npos)
1115 torus_db = database.substr(0, db_arg_pos);
1116 input_args = database.substr(db_arg_pos + 1);
1119 torus_db = database;
1121 std::string authentication;
1122 std::string content_authentication;
1123 std::string content_proxy;
1124 std::string realm = session_realm;
1125 if (realm.length() == 0)
1126 realm = m_p->default_realm;
1128 const char *param_user = 0;
1129 const char *param_password = 0;
1130 const char *param_content_user = 0;
1131 const char *param_content_password = 0;
1132 const char *param_nocproxy = 0;
1137 int no_out_args = 0;
1138 if (input_args.length())
1139 no_parms = yaz_uri_to_array(input_args.c_str(),
1140 odr, &names, &values);
1141 // adding 10 because we'll be adding other URL args
1142 const char **out_names = (const char **)
1143 odr_malloc(odr, (10 + no_parms) * sizeof(*out_names));
1144 const char **out_values = (const char **)
1145 odr_malloc(odr, (10 + no_parms) * sizeof(*out_values));
1147 // may be changed if it's a content connection
1148 std::string torus_url = m_p->torus_searchable_url;
1150 for (i = 0; i < no_parms; i++)
1152 const char *name = names[i];
1153 const char *value = values[i];
1156 if (!strcmp(name, "user"))
1158 else if (!strcmp(name, "password"))
1159 param_password = value;
1160 else if (!strcmp(name, "content-user"))
1161 param_content_user = value;
1162 else if (!strcmp(name, "content-password"))
1163 param_content_password = value;
1164 else if (!strcmp(name, "content-proxy"))
1165 content_proxy = value;
1166 else if (!strcmp(name, "nocproxy"))
1167 param_nocproxy = value;
1168 else if (!strcmp(name, "proxy"))
1172 nmem_strsplit(((ODR) odr)->mem, ",", value, &dstr, &dnum);
1173 if (connection_reuse)
1175 // find the step after our current proxy
1177 for (i = 0; i < dnum; i++)
1178 if (!strcmp(proxy.c_str(), dstr[i]))
1183 *proxy_step = i + 1;
1187 // step is known.. Guess our proxy from it
1188 if (*proxy_step >= dnum)
1192 proxy = dstr[*proxy_step];
1195 if (*proxy_step == dnum)
1200 else if (!strcmp(name, "cproxysession"))
1202 out_names[no_out_args] = name;
1203 out_values[no_out_args++] = value;
1204 torus_url = m_p->torus_content_url;
1206 else if (!strcmp(name, "realm") && session_realm.length() == 0)
1208 else if (!strcmp(name, "torus_url") && session_realm.length() == 0)
1210 else if (name[0] == 'x' && name[1] == '-')
1212 out_names[no_out_args] = name;
1213 out_values[no_out_args++] = value;
1217 BackendPtr notfound;
1218 char *msg = (char*) odr_malloc(odr, strlen(name) + 30);
1219 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1220 sprintf(msg, "zoom: bad database argument: %s", name);
1226 package.log("zoom", YLOG_LOG, "proxy: %s", proxy.c_str());
1228 if (connection_reuse)
1230 m_backend->connect("", error, addinfo, odr);
1236 authentication = std::string(param_user);
1238 authentication += "/" + std::string(param_password);
1240 if (param_content_user)
1242 content_authentication = std::string(param_content_user);
1243 if (param_content_password)
1244 content_authentication += "/" + std::string(param_content_password);
1247 if (torus_db.compare("IR-Explain---1") == 0)
1248 return explain_search(package, database, error, addinfo, odr, torus_url,
1253 std::map<std::string,SearchablePtr>::iterator it;
1254 it = m_p->s_map.find(torus_db);
1255 if (it != m_p->s_map.end())
1257 else if (torus_url.length() > 0)
1259 std::string torus_query = "udb==" + torus_db;
1260 xmlDoc *doc = mp::get_searchable(package,torus_url, torus_db,
1265 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1266 *addinfo = odr_strdup(odr, "Torus server unavailable or "
1267 "incorrectly configured");
1271 const xmlNode *ptr = xmlDocGetRootElement(doc);
1272 if (ptr && ptr->type == XML_ELEMENT_NODE)
1274 if (!strcmp((const char *) ptr->name, "record"))
1276 sptr = m_p->parse_torus_record(ptr);
1278 else if (!strcmp((const char *) ptr->name, "records"))
1280 for (ptr = ptr->children; ptr; ptr = ptr->next)
1282 if (ptr->type == XML_ELEMENT_NODE
1283 && !strcmp((const char *) ptr->name, "record"))
1287 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1289 odr_malloc(odr, 40 + torus_db.length());
1290 sprintf(*addinfo, "multiple records for udb=%s",
1296 sptr = m_p->parse_torus_record(ptr);
1302 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1303 *addinfo = (char*) odr_malloc(
1304 odr, 40 + strlen((const char *) ptr->name));
1305 sprintf(*addinfo, "bad root element for torus: %s", ptr->name);
1316 *error = YAZ_BIB1_DATABASE_DOES_NOT_EXIST;
1317 *addinfo = odr_strdup(odr, torus_db.c_str());
1322 xsltStylesheetPtr xsp = 0;
1323 if (sptr->transform_xsl_content.length())
1325 xmlDoc *xsp_doc = xmlParseMemory(sptr->transform_xsl_content.c_str(),
1326 sptr->transform_xsl_content.length());
1329 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1330 *addinfo = odr_strdup(odr, "zoom: xmlParseMemory failed "
1331 "for literalTransform XSL");
1335 xsp = xsltParseStylesheetDoc(xsp_doc);
1338 *error = YAZ_BIB1_DATABASE_DOES_NOT_EXIST;
1340 odr_strdup(odr,"zoom: xsltParseStylesheetDoc failed "
1341 "for literalTransform XSL");
1343 xmlFreeDoc(xsp_doc);
1347 else if (sptr->transform_xsl_fname.length())
1349 const char *path = 0;
1351 if (m_p->xsldir.length())
1352 path = m_p->xsldir.c_str();
1354 path = m_p->file_path.c_str();
1357 char fullpath[1024];
1358 char *cp = yaz_filepath_resolve(sptr->transform_xsl_fname.c_str(),
1364 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1366 odr_malloc(odr, 40 + sptr->transform_xsl_fname.length());
1367 sprintf(*addinfo, "zoom: could not open file %s",
1368 sptr->transform_xsl_fname.c_str());
1372 xmlDoc *xsp_doc = xmlParseFile(fname.c_str());
1375 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1376 *addinfo = (char *) odr_malloc(odr, 50 + fname.length());
1377 sprintf(*addinfo, "zoom: xmlParseFile failed for file %s",
1382 xsp = xsltParseStylesheetDoc(xsp_doc);
1385 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1386 *addinfo = (char *) odr_malloc(odr, 50 + fname.length());
1387 sprintf(*addinfo, "zoom: xsltParseStylesheetDoc failed "
1388 "for file %s", fname.c_str());
1390 xmlFreeDoc(xsp_doc);
1395 cql_transform_t cqlt = 0;
1396 if (sptr->rpn2cql_fname.length())
1398 char fullpath[1024];
1399 char *cp = yaz_filepath_resolve(sptr->rpn2cql_fname.c_str(),
1400 m_p->file_path.c_str(), 0, fullpath);
1402 cqlt = cql_transform_open_fname(fullpath);
1405 cqlt = cql_transform_create();
1409 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1410 *addinfo = odr_strdup(odr, "zoom: missing/invalid cql2rpn file");
1412 xsltFreeStylesheet(xsp);
1418 BackendPtr b(new Backend);
1423 b->m_frontend_database = database;
1424 b->enable_cproxy = param_nocproxy ? false : true;
1426 if (sptr->query_encoding.length())
1427 b->set_option("rpnCharset", sptr->query_encoding);
1429 std::string extraArgs = sptr->extraArgs;
1431 b->set_option("timeout", m_p->zoom_timeout.c_str());
1434 b->set_option("apdulog", "1");
1436 if (sptr->piggyback && sptr->sru.length())
1437 b->set_option("count", "1"); /* some SRU servers INSIST on getting
1438 maximumRecords > 0 */
1439 b->set_option("piggyback", sptr->piggyback ? "1" : "0");
1441 if (authentication.length() == 0)
1442 authentication = sptr->authentication;
1444 if (proxy.length() == 0)
1445 proxy = sptr->cfProxy;
1448 if (sptr->cfAuth.length())
1451 b->set_option("user", sptr->cfAuth);
1452 if (authentication.length())
1454 size_t found = authentication.find('/');
1455 if (found != std::string::npos)
1457 out_names[no_out_args] = "user";
1458 out_values[no_out_args++] =
1459 odr_strdup(odr, authentication.substr(0, found).c_str());
1461 out_names[no_out_args] = "password";
1462 out_values[no_out_args++] =
1463 odr_strdup(odr, authentication.substr(found+1).c_str());
1467 out_names[no_out_args] = "user";
1468 out_values[no_out_args++] =
1469 odr_strdup(odr, authentication.c_str());
1474 out_names[no_out_args] = "proxy";
1475 out_values[no_out_args++] = odr_strdup(odr, proxy.c_str());
1477 if (sptr->cfSubDB.length())
1479 out_names[no_out_args] = "subdatabase";
1480 out_values[no_out_args++] = odr_strdup(odr, sptr->cfSubDB.c_str());
1482 if (!param_nocproxy && b->sptr->contentConnector.length())
1483 param_nocproxy = "1";
1487 out_names[no_out_args] = "nocproxy";
1488 out_values[no_out_args++] = odr_strdup(odr, param_nocproxy);
1493 const char *auth = authentication.c_str();
1494 const char *cp1 = strchr(auth, ' ');
1495 if (!cp1 && sptr->sru.length())
1496 cp1 = strchr(auth, '/');
1499 /* Z39.50 user/password style, or no password for SRU */
1500 b->set_option("user", auth);
1504 /* now consider group as well */
1505 const char *cp2 = strchr(cp1 + 1, ' ');
1507 b->set_option("user", auth, cp1 - auth);
1509 b->set_option("password", cp1 + 1);
1512 b->set_option("group", cp1 + 1, cp2 - cp1 - 1);
1513 b->set_option("password", cp2 + 1);
1516 if (sptr->authenticationMode.length())
1517 b->set_option("authenticationMode", sptr->authenticationMode);
1519 b->set_option("proxy", proxy);
1521 if (extraArgs.length())
1522 b->set_option("extraArgs", extraArgs);
1524 std::string url(sptr->target);
1525 if (sptr->sru.length())
1527 b->set_option("sru", sptr->sru);
1528 if (url.find("://") == std::string::npos)
1529 url = "http://" + url;
1530 if (sptr->sru_version.length())
1531 b->set_option("sru_version", sptr->sru_version);
1536 out_names[no_out_args] = 0; // terminate list
1538 yaz_array_to_uri(&x_args, odr, (char **) out_names,
1539 (char **) out_values);
1540 url += "," + std::string(x_args);
1542 package.log("zoom", YLOG_LOG, "url: %s", url.c_str());
1543 b->connect(url, error, addinfo, odr);
1544 if (*error == 0 && b->enable_cproxy)
1545 create_content_session(package, b, error, addinfo, odr,
1546 content_authentication.length() ?
1547 content_authentication : authentication,
1548 content_proxy.length() ? content_proxy : proxy,
1555 void yf::Zoom::Frontend::prepare_elements(BackendPtr b,
1556 Odr_oid *preferredRecordSyntax,
1557 const char *element_set_name,
1558 bool &enable_pz2_retrieval,
1559 bool &enable_pz2_transform,
1560 bool &enable_record_transform,
1561 bool &assume_marc8_charset)
1563 char oid_name_str[OID_STR_MAX];
1564 const char *syntax_name = 0;
1566 if (preferredRecordSyntax &&
1567 !oid_oidcmp(preferredRecordSyntax, yaz_oid_recsyn_xml))
1569 if (element_set_name &&
1570 !strcmp(element_set_name, m_p->element_transform.c_str()))
1572 enable_pz2_retrieval = true;
1573 enable_pz2_transform = true;
1575 else if (element_set_name &&
1576 !strcmp(element_set_name, m_p->element_raw.c_str()))
1578 enable_pz2_retrieval = true;
1580 else if (m_p->record_xsp)
1582 enable_pz2_retrieval = true;
1583 enable_pz2_transform = true;
1584 enable_record_transform = true;
1588 if (enable_pz2_retrieval)
1590 std::string configured_request_syntax = b->sptr->request_syntax;
1591 if (configured_request_syntax.length())
1593 syntax_name = configured_request_syntax.c_str();
1594 const Odr_oid *syntax_oid =
1595 yaz_string_to_oid(yaz_oid_std(), CLASS_RECSYN, syntax_name);
1596 if (!oid_oidcmp(syntax_oid, yaz_oid_recsyn_usmarc)
1597 || !oid_oidcmp(syntax_oid, yaz_oid_recsyn_opac))
1598 assume_marc8_charset = true;
1601 else if (preferredRecordSyntax)
1603 yaz_oid_to_string_buf(preferredRecordSyntax, 0, oid_name_str);
1605 if (b->sptr->sru.length())
1606 syntax_name = "XML";
1608 b->set_option("preferredRecordSyntax", syntax_name);
1610 if (enable_pz2_retrieval)
1612 if (element_set_name && !strcmp(element_set_name,
1613 m_p->element_passthru.c_str()))
1617 element_set_name = 0;
1618 if (b->sptr->element_set.length())
1619 element_set_name = b->sptr->element_set.c_str();
1623 b->set_option("elementSetName", element_set_name);
1624 if (b->sptr->sru.length() && element_set_name)
1625 b->set_option("schema", element_set_name);
1628 Z_Records *yf::Zoom::Frontend::get_explain_records(
1629 mp::Package &package,
1631 Odr_int number_to_present,
1634 Odr_int *number_of_records_returned,
1637 Odr_oid *preferredRecordSyntax,
1638 const char *element_set_name)
1641 Z_Records *records = 0;
1643 if (!b->explain_doc)
1647 if (number_to_present > 10000)
1648 number_to_present = 10000;
1650 xmlNode *ptr = xmlDocGetRootElement(b->explain_doc);
1652 Z_NamePlusRecordList *npl = (Z_NamePlusRecordList *)
1653 odr_malloc(odr, sizeof(*npl));
1654 npl->records = (Z_NamePlusRecord **)
1655 odr_malloc(odr, number_to_present * sizeof(*npl->records));
1657 for (i = 0; i < number_to_present; i++)
1660 xmlNode *res = xml_node_search(ptr, &num, start + i + 1);
1663 xmlBufferPtr xml_buf = xmlBufferCreate();
1664 xmlNode *tmp_node = xmlCopyNode(res->children, 1);
1665 xmlNodeDump(xml_buf, tmp_node->doc, tmp_node, 0, 0);
1667 Z_NamePlusRecord *npr =
1668 (Z_NamePlusRecord *) odr_malloc(odr, sizeof(*npr));
1669 npr->databaseName = odr_strdup(odr, b->m_frontend_database.c_str());
1670 npr->which = Z_NamePlusRecord_databaseRecord;
1671 npr->u.databaseRecord =
1672 z_ext_record_xml(odr,
1673 (const char *) xml_buf->content, xml_buf->use);
1674 npl->records[i] = npr;
1675 xmlFreeNode(tmp_node);
1676 xmlBufferFree(xml_buf);
1678 records = (Z_Records*) odr_malloc(odr, sizeof(*records));
1679 records->which = Z_Records_DBOSD;
1680 records->u.databaseOrSurDiagnostics = npl;
1682 npl->num_records = i;
1683 *number_of_records_returned = i;
1688 Z_Records *yf::Zoom::Frontend::get_records(mp::Package &package,
1690 Odr_int number_to_present,
1693 Odr_int *number_of_records_returned,
1696 Odr_oid *preferredRecordSyntax,
1697 const char *element_set_name)
1699 *number_of_records_returned = 0;
1700 Z_Records *records = 0;
1701 bool enable_pz2_retrieval = false; // whether target profile is used
1702 bool enable_pz2_transform = false; // whether XSLT is used as well
1703 bool assume_marc8_charset = false;
1704 bool enable_record_transform = false;
1706 prepare_elements(b, preferredRecordSyntax,
1708 enable_pz2_retrieval,
1709 enable_pz2_transform,
1710 enable_record_transform,
1711 assume_marc8_charset);
1713 package.log("zoom", YLOG_LOG, "pz2_retrieval: %s . pz2_transform: %s",
1714 enable_pz2_retrieval ? "yes" : "no",
1715 enable_pz2_transform ? "yes" : "no");
1717 if (start < 0 || number_to_present <=0)
1720 if (number_to_present > 10000)
1721 number_to_present = 10000;
1723 ZOOM_record *recs = (ZOOM_record *)
1724 odr_malloc(odr, (size_t) number_to_present * sizeof(*recs));
1726 b->present(start, number_to_present, recs, error, addinfo, odr);
1731 for (i = 0; i < number_to_present; i++)
1736 { // only return records if no error and at least one record
1738 const char *xsl_parms[3];
1739 mp::wrbuf cproxy_host;
1741 if (b->enable_cproxy && b->cproxy_host.length())
1743 wrbuf_puts(cproxy_host, "\"");
1744 wrbuf_puts(cproxy_host, b->cproxy_host.c_str());
1745 wrbuf_puts(cproxy_host, "/\"");
1747 xsl_parms[0] = "cproxyhost";
1748 xsl_parms[1] = wrbuf_cstr(cproxy_host);
1756 char *odr_database = odr_strdup(odr,
1757 b->m_frontend_database.c_str());
1758 Z_NamePlusRecordList *npl = (Z_NamePlusRecordList *)
1759 odr_malloc(odr, sizeof(*npl));
1760 *number_of_records_returned = i;
1761 npl->num_records = i;
1762 npl->records = (Z_NamePlusRecord **)
1763 odr_malloc(odr, i * sizeof(*npl->records));
1764 for (i = 0; i < number_to_present; i++)
1766 Z_NamePlusRecord *npr = 0;
1767 const char *addinfo;
1769 int sur_error = ZOOM_record_error(recs[i], 0 /* msg */,
1770 &addinfo, 0 /* diagset */);
1774 log_diagnostic(package, sur_error, addinfo);
1775 npr = zget_surrogateDiagRec(odr, odr_database, sur_error,
1778 else if (enable_pz2_retrieval)
1780 char rec_type_str[100];
1781 const char *record_encoding = 0;
1783 if (b->sptr->record_encoding.length())
1784 record_encoding = b->sptr->record_encoding.c_str();
1785 else if (assume_marc8_charset)
1786 record_encoding = "marc8";
1788 strcpy(rec_type_str, b->sptr->use_turbomarc ? "txml" : "xml");
1789 if (record_encoding)
1791 strcat(rec_type_str, "; charset=");
1792 strcat(rec_type_str, record_encoding);
1795 package.log("zoom", YLOG_LOG, "Getting record of type %s",
1798 xmlChar *xmlrec_buf = 0;
1799 const char *rec_buf = ZOOM_record_get(recs[i], rec_type_str,
1801 if (!rec_buf && !npr)
1803 std::string addinfo("ZOOM_record_get failed for type ");
1805 int error = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1806 addinfo += rec_type_str;
1807 log_diagnostic(package, error, addinfo.c_str());
1808 npr = zget_surrogateDiagRec(odr, odr_database,
1809 error, addinfo.c_str());
1813 package.log_write(rec_buf, rec_len);
1814 package.log_write("\r\n", 2);
1817 if (rec_buf && b->xsp && enable_pz2_transform)
1819 xmlDoc *rec_doc = xmlParseMemory(rec_buf, rec_len);
1822 const char *addinfo = "xml parse failed for record";
1823 int error = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1824 log_diagnostic(package, error, addinfo);
1825 npr = zget_surrogateDiagRec(
1826 odr, odr_database, error, addinfo);
1830 // first stage XSLT - per target
1831 xsltStylesheetPtr xsp = b->xsp;
1832 xmlDoc *rec_res = xsltApplyStylesheet(xsp, rec_doc,
1834 // insert generated-url
1838 mp::xml::url_recipe_handle(rec_res,
1839 b->sptr->urlRecipe);
1842 xmlNode *ptr = xmlDocGetRootElement(rec_res);
1843 while (ptr && ptr->type != XML_ELEMENT_NODE)
1846 xmlNewChild(ptr, 0, BAD_CAST "metadata", 0);
1847 xmlNewProp(c, BAD_CAST "type", BAD_CAST
1849 xmlNode * t = xmlNewText(BAD_CAST res.c_str());
1853 // second stage XSLT - common
1854 if (rec_res && m_p->record_xsp &&
1855 enable_record_transform)
1857 xmlDoc *tmp_doc = rec_res;
1859 xsp = m_p->record_xsp;
1860 rec_res = xsltApplyStylesheet(xsp, tmp_doc,
1862 xmlFreeDoc(tmp_doc);
1864 // get result out of it
1867 xsltSaveResultToString(&xmlrec_buf, &rec_len,
1869 rec_buf = (const char *) xmlrec_buf;
1870 package.log_write(rec_buf, rec_len);
1872 xmlFreeDoc(rec_res);
1876 std::string addinfo;
1878 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1880 addinfo = "xslt apply failed for "
1881 + b->sptr->transform_xsl_fname;
1882 log_diagnostic(package, error, addinfo.c_str());
1883 npr = zget_surrogateDiagRec(
1884 odr, odr_database, error, addinfo.c_str());
1886 xmlFreeDoc(rec_doc);
1893 npr = zget_surrogateDiagRec(
1895 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
1899 npr = (Z_NamePlusRecord *)
1900 odr_malloc(odr, sizeof(*npr));
1901 npr->databaseName = odr_database;
1902 npr->which = Z_NamePlusRecord_databaseRecord;
1903 npr->u.databaseRecord =
1904 z_ext_record_xml(odr, rec_buf, rec_len);
1908 xmlFree(xmlrec_buf);
1913 (Z_External *) ZOOM_record_get(recs[i], "ext", 0);
1916 npr = (Z_NamePlusRecord *) odr_malloc(odr, sizeof(*npr));
1917 npr->databaseName = odr_database;
1918 npr->which = Z_NamePlusRecord_databaseRecord;
1919 npr->u.databaseRecord = ext;
1923 npr = zget_surrogateDiagRec(
1925 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
1926 "ZOOM_record, type ext");
1929 npl->records[i] = npr;
1931 records = (Z_Records*) odr_malloc(odr, sizeof(*records));
1932 records->which = Z_Records_DBOSD;
1933 records->u.databaseOrSurDiagnostics = npl;
1938 struct cql_node *yf::Zoom::Impl::convert_cql_fields(struct cql_node *cn,
1941 struct cql_node *r = 0;
1949 std::map<std::string,std::string>::const_iterator it;
1950 it = fieldmap.find(cn->u.st.index);
1951 if (it == fieldmap.end())
1953 if (it->second.length())
1954 cn->u.st.index = odr_strdup(odr, it->second.c_str());
1960 r = convert_cql_fields(cn->u.boolean.left, odr);
1962 r = convert_cql_fields(cn->u.boolean.right, odr);
1965 r = convert_cql_fields(cn->u.sort.search, odr);
1971 void yf::Zoom::Frontend::log_diagnostic(mp::Package &package,
1972 int error, const char *addinfo)
1974 const char *err_msg = yaz_diag_bib1_str(error);
1976 package.log("zoom", YLOG_WARN, "Diagnostic %d %s: %s",
1977 error, err_msg, addinfo);
1979 package.log("zoom", YLOG_WARN, "Diagnostic %d %s:",
1983 yf::Zoom::BackendPtr yf::Zoom::Frontend::explain_search(mp::Package &package,
1984 std::string &database,
1988 std::string torus_url,
1989 std::string &torus_db,
1994 BackendPtr b(new Backend);
1996 b->m_frontend_database = database;
1997 b->enable_explain = true;
1999 Z_GDU *gdu = package.request().get();
2000 Z_APDU *apdu_req = gdu->u.z3950;
2001 Z_SearchRequest *sr = apdu_req->u.searchRequest;
2002 Z_Query *query = sr->query;
2004 if (!m_p->explain_xsp)
2006 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
2008 odr_strdup(odr, "IR-Explain---1 unsupported. "
2009 "Torus explain_xsl not defined");
2012 else if (query->which == Z_Query_type_104 &&
2013 query->u.type_104->which == Z_External_CQL)
2015 std::string torus_query(query->u.type_104->u.cql);
2016 xmlDoc *doc = mp::get_searchable(package, torus_url, "",
2019 if (m_p->explain_xsp)
2021 xmlDoc *rec_res = xsltApplyStylesheet(m_p->explain_xsp, doc, 0);
2028 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
2029 *addinfo = odr_strdup(odr, "Torus server unavailable or "
2030 "incorrectly configured");
2034 xmlNode *ptr = xmlDocGetRootElement(doc);
2037 xml_node_search(ptr, &hits, 0);
2039 Z_APDU *apdu_res = odr.create_searchResponse(apdu_req, 0, 0);
2040 apdu_res->u.searchResponse->resultCount = odr_intdup(odr, hits);
2041 package.response() = apdu_res;
2045 xmlFreeDoc(b->explain_doc);
2046 b->explain_doc = doc;
2051 *error = YAZ_BIB1_QUERY_TYPE_UNSUPP;
2052 *addinfo = odr_strdup(odr, "IR-Explain---1 only supports CQL");
2057 static bool wait_conn(COMSTACK cs, int secs)
2059 struct yaz_poll_fd pfd;
2061 yaz_poll_add(pfd.input_mask, yaz_poll_except);
2062 if (cs->io_pending && CS_WANT_WRITE)
2063 yaz_poll_add(pfd.input_mask, yaz_poll_write);
2064 if (cs->io_pending & CS_WANT_READ)
2065 yaz_poll_add(pfd.input_mask, yaz_poll_read);
2067 pfd.fd = cs_fileno(cs);
2068 pfd.client_data = 0;
2070 int ret = yaz_poll(&pfd, 1, secs, 0);
2074 bool yf::Zoom::Impl::check_proxy(const char *proxy)
2077 const char *uri = "http://localhost/";
2080 bool outcome = false;
2081 conn = cs_create_host_proxy(uri, 0, &add, proxy);
2086 Z_GDU *gdu = z_get_HTTP_Request_uri(odr, uri, 0, 1);
2087 gdu->u.HTTP_Request->method = odr_strdup(odr, "GET");
2089 if (z_GDU(odr, &gdu, 0, 0))
2092 char *buf = odr_getbuf(odr, &len, 0);
2094 int ret = cs_connect(conn, add);
2095 if (ret > 0 || (ret == 0 && wait_conn(conn, 1)))
2099 ret = cs_put(conn, buf, len);
2102 if (!wait_conn(conn, proxy_timeout))
2113 bool yf::Zoom::Frontend::retry(mp::Package &package,
2116 int &error, char **addinfo,
2117 int &proxy_step, int &same_retries,
2120 if (b && b->m_proxy.length() && !m_p->check_proxy(b->m_proxy.c_str()))
2122 log_diagnostic(package, error, *addinfo);
2123 package.log("zoom", YLOG_LOG, "proxy %s fails", b->m_proxy.c_str());
2125 if (proxy_step) // there is a failover
2128 package.log("zoom", YLOG_WARN, "search failed: trying next proxy");
2131 error = YAZ_BIB1_PROXY_FAILURE;
2132 *addinfo = odr_strdup(odr, b->m_proxy.c_str());
2134 else if (same_retries == 0 && proxy_retries == 0)
2136 log_diagnostic(package, error, *addinfo);
2138 package.log("zoom", YLOG_WARN, "search failed: retry");
2146 void yf::Zoom::Frontend::handle_search(mp::Package &package)
2148 Z_GDU *gdu = package.request().get();
2149 Z_APDU *apdu_req = gdu->u.z3950;
2150 Z_APDU *apdu_res = 0;
2152 Z_SearchRequest *sr = apdu_req->u.searchRequest;
2153 if (sr->num_databaseNames != 1)
2155 int error = YAZ_BIB1_TOO_MANY_DATABASES_SPECIFIED;
2156 log_diagnostic(package, error, 0);
2157 apdu_res = odr.create_searchResponse(apdu_req, error, 0);
2158 package.response() = apdu_res;
2162 int same_retries = 0;
2163 int proxy_retries = 0;
2169 std::string db(sr->databaseNames[0]);
2171 BackendPtr b = get_backend_from_databases(package, db, &error,
2172 &addinfo, odr, &proxy_step);
2175 if (retry(package, odr, b, error, &addinfo, proxy_step,
2176 same_retries, proxy_retries))
2181 log_diagnostic(package, error, addinfo);
2182 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2183 package.response() = apdu_res;
2186 if (!b || b->enable_explain)
2189 b->set_option("setname", "default");
2191 bool enable_pz2_retrieval = false;
2192 bool enable_pz2_transform = false;
2193 bool enable_record_transform = false;
2194 bool assume_marc8_charset = false;
2195 prepare_elements(b, sr->preferredRecordSyntax, 0 /*element_set_name */,
2196 enable_pz2_retrieval,
2197 enable_pz2_transform,
2198 enable_record_transform,
2199 assume_marc8_charset);
2202 Z_Query *query = sr->query;
2203 mp::wrbuf ccl_wrbuf;
2204 mp::wrbuf pqf_wrbuf;
2205 std::string sortkeys;
2207 if (query->which == Z_Query_type_1 || query->which == Z_Query_type_101)
2210 yaz_rpnquery_to_wrbuf(pqf_wrbuf, query->u.type_1);
2212 else if (query->which == Z_Query_type_2)
2215 wrbuf_write(ccl_wrbuf, (const char *) query->u.type_2->buf,
2216 query->u.type_2->len);
2218 else if (query->which == Z_Query_type_104 &&
2219 query->u.type_104->which == Z_External_CQL)
2222 const char *cql = query->u.type_104->u.cql;
2223 CQL_parser cp = cql_parser_create();
2224 int r = cql_parser_string(cp, cql);
2225 package.log("zoom", YLOG_LOG, "CQL: %s", cql);
2228 cql_parser_destroy(cp);
2229 error = YAZ_BIB1_MALFORMED_QUERY;
2230 const char *addinfo = "CQL syntax error";
2231 log_diagnostic(package, error, addinfo);
2233 odr.create_searchResponse(apdu_req, error, addinfo);
2234 package.response() = apdu_res;
2237 struct cql_node *cn = cql_parser_result(cp);
2238 struct cql_node *cn_error = m_p->convert_cql_fields(cn, odr);
2241 // hopefully we are getting a ptr to a index+relation+term node
2242 error = YAZ_BIB1_UNSUPP_USE_ATTRIBUTE;
2244 if (cn_error->which == CQL_NODE_ST)
2245 addinfo = cn_error->u.st.index;
2247 log_diagnostic(package, error, addinfo);
2248 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2249 package.response() = apdu_res;
2250 cql_parser_destroy(cp);
2253 r = cql_to_ccl(cn, wrbuf_vp_puts, ccl_wrbuf);
2256 error = YAZ_BIB1_MALFORMED_QUERY;
2257 const char *addinfo = "CQL to CCL conversion error";
2259 log_diagnostic(package, error, addinfo);
2260 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2261 package.response() = apdu_res;
2262 cql_parser_destroy(cp);
2266 mp::wrbuf sru_sortkeys_wrbuf;
2267 if (cql_sortby_to_sortkeys(cn, wrbuf_vp_puts, sru_sortkeys_wrbuf))
2269 error = YAZ_BIB1_ILLEGAL_SORT_RELATION;
2270 const char *addinfo = "CQL to CCL sortby conversion";
2272 log_diagnostic(package, error, addinfo);
2273 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2274 package.response() = apdu_res;
2275 cql_parser_destroy(cp);
2278 mp::wrbuf sort_spec_wrbuf;
2279 yaz_srw_sortkeys_to_sort_spec(wrbuf_cstr(sru_sortkeys_wrbuf),
2281 yaz_tok_cfg_t tc = yaz_tok_cfg_create();
2282 yaz_tok_parse_t tp =
2283 yaz_tok_parse_buf(tc, wrbuf_cstr(sort_spec_wrbuf));
2284 yaz_tok_cfg_destroy(tc);
2286 /* go through sortspec and map fields */
2287 int token = yaz_tok_move(tp);
2288 while (token != YAZ_TOK_EOF)
2290 if (token == YAZ_TOK_STRING)
2292 const char *field = yaz_tok_parse_string(tp);
2293 std::map<std::string,std::string>::iterator it;
2294 it = b->sptr->sortmap.find(field);
2295 if (it != b->sptr->sortmap.end())
2296 sortkeys += it->second;
2301 token = yaz_tok_move(tp);
2302 if (token == YAZ_TOK_STRING)
2304 sortkeys += yaz_tok_parse_string(tp);
2306 if (token != YAZ_TOK_EOF)
2309 token = yaz_tok_move(tp);
2312 yaz_tok_parse_destroy(tp);
2313 cql_parser_destroy(cp);
2317 error = YAZ_BIB1_QUERY_TYPE_UNSUPP;
2318 const char *addinfo = 0;
2319 log_diagnostic(package, error, addinfo);
2320 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2321 package.response() = apdu_res;
2325 if (ccl_wrbuf.len())
2328 assert(pqf_wrbuf.len() == 0);
2330 struct ccl_rpn_node *cn;
2331 package.log("zoom", YLOG_LOG, "CCL: %s", wrbuf_cstr(ccl_wrbuf));
2332 cn = ccl_find_str(b->sptr->ccl_bibset, wrbuf_cstr(ccl_wrbuf),
2336 char *addinfo = odr_strdup_null(odr, ccl_err_msg(cerror));
2337 error = YAZ_BIB1_MALFORMED_QUERY;
2341 case CCL_ERR_UNKNOWN_QUAL:
2342 case CCL_ERR_TRUNC_NOT_LEFT:
2343 case CCL_ERR_TRUNC_NOT_RIGHT:
2344 case CCL_ERR_TRUNC_NOT_BOTH:
2345 #ifdef CCL_ERR_TRUNC_NOT_EMBED
2346 case CCL_ERR_TRUNC_NOT_EMBED:
2348 #ifdef CCL_ERR_TRUNC_NOT_SINGLE
2349 case CCL_ERR_TRUNC_NOT_SINGLE:
2351 error = YAZ_BIB1_UNSUPP_SEARCH;
2354 log_diagnostic(package, error, addinfo);
2355 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2356 package.response() = apdu_res;
2359 ccl_pquery(pqf_wrbuf, cn);
2360 package.log("zoom", YLOG_LOG, "RPN: %s", wrbuf_cstr(pqf_wrbuf));
2364 assert(pqf_wrbuf.len());
2366 ZOOM_query q = ZOOM_query_create();
2367 ZOOM_query_sortby2(q, b->sptr->sortStrategy.c_str(), sortkeys.c_str());
2369 Z_FacetList *fl = 0;
2371 // Facets for request.. And later for reponse
2373 fl = yaz_oi_get_facetlist(&sr->otherInfo);
2375 fl = yaz_oi_get_facetlist(&sr->additionalSearchInfo);
2377 if (b->get_option("sru"))
2381 zquery = p_query_rpn(odr, wrbuf_cstr(pqf_wrbuf));
2384 if (!strcmp(b->get_option("sru"), "solr"))
2386 solr_transform_t cqlt = solr_transform_create();
2388 status = solr_transform_rpn2solr_wrbuf(cqlt, wrb, zquery);
2390 solr_transform_close(cqlt);
2394 status = cql_transform_rpn2cql_wrbuf(b->cqlt, wrb, zquery);
2398 ZOOM_query_cql(q, wrbuf_cstr(wrb));
2399 package.log("zoom", YLOG_LOG, "CQL: %s", wrbuf_cstr(wrb));
2400 b->search(q, &hits, &error, &addinfo, &fl, odr);
2402 ZOOM_query_destroy(q);
2406 error = YAZ_BIB1_MALFORMED_QUERY;
2407 const char *addinfo = "can not convert from RPN to CQL/Solr";
2408 log_diagnostic(package, error, addinfo);
2409 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2410 package.response() = apdu_res;
2416 ZOOM_query_prefix(q, wrbuf_cstr(pqf_wrbuf));
2417 package.log("zoom", YLOG_LOG, "search PQF: %s", wrbuf_cstr(pqf_wrbuf));
2418 b->search(q, &hits, &error, &addinfo, &fl, odr);
2419 ZOOM_query_destroy(q);
2424 if (retry(package, odr, b, error, &addinfo, proxy_step,
2425 same_retries, proxy_retries))
2429 const char *element_set_name = 0;
2430 Odr_int number_to_present = 0;
2432 mp::util::piggyback_sr(sr, hits, number_to_present, &element_set_name);
2434 Odr_int number_of_records_returned = 0;
2435 Z_Records *records = get_records(
2437 0, number_to_present, &error, &addinfo,
2438 &number_of_records_returned, odr, b, sr->preferredRecordSyntax,
2441 log_diagnostic(package, error, addinfo);
2442 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2445 apdu_res->u.searchResponse->records = records;
2446 apdu_res->u.searchResponse->numberOfRecordsReturned =
2447 odr_intdup(odr, number_of_records_returned);
2449 apdu_res->u.searchResponse->resultCount = odr_intdup(odr, hits);
2451 yaz_oi_set_facetlist(&apdu_res->u.searchResponse->additionalSearchInfo,
2453 package.response() = apdu_res;
2456 void yf::Zoom::Frontend::handle_present(mp::Package &package)
2458 Z_GDU *gdu = package.request().get();
2459 Z_APDU *apdu_req = gdu->u.z3950;
2460 Z_APDU *apdu_res = 0;
2461 Z_PresentRequest *pr = apdu_req->u.presentRequest;
2466 package.response() = odr.create_presentResponse(
2467 apdu_req, YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST, 0);
2470 const char *element_set_name = 0;
2471 Z_RecordComposition *comp = pr->recordComposition;
2472 if (comp && comp->which != Z_RecordComp_simple)
2474 package.response() = odr.create_presentResponse(
2476 YAZ_BIB1_PRESENT_COMP_SPEC_PARAMETER_UNSUPP, 0);
2479 if (comp && comp->u.simple->which == Z_ElementSetNames_generic)
2480 element_set_name = comp->u.simple->u.generic;
2481 Odr_int number_of_records_returned = 0;
2485 if (m_backend->enable_explain)
2487 Z_Records *records =
2488 get_explain_records(
2490 *pr->resultSetStartPoint - 1, *pr->numberOfRecordsRequested,
2491 &error, &addinfo, &number_of_records_returned, odr, m_backend,
2492 pr->preferredRecordSyntax, element_set_name);
2494 apdu_res = odr.create_presentResponse(apdu_req, error, addinfo);
2497 apdu_res->u.presentResponse->records = records;
2498 apdu_res->u.presentResponse->numberOfRecordsReturned =
2499 odr_intdup(odr, number_of_records_returned);
2501 package.response() = apdu_res;
2505 Z_Records *records =
2506 get_records(package,
2507 *pr->resultSetStartPoint - 1, *pr->numberOfRecordsRequested,
2508 &error, &addinfo, &number_of_records_returned, odr, m_backend,
2509 pr->preferredRecordSyntax, element_set_name);
2511 apdu_res = odr.create_presentResponse(apdu_req, error, addinfo);
2514 apdu_res->u.presentResponse->records = records;
2515 apdu_res->u.presentResponse->numberOfRecordsReturned =
2516 odr_intdup(odr, number_of_records_returned);
2518 package.response() = apdu_res;
2522 void yf::Zoom::Frontend::handle_package(mp::Package &package)
2524 Z_GDU *gdu = package.request().get();
2527 else if (gdu->which == Z_GDU_Z3950)
2529 Z_APDU *apdu_req = gdu->u.z3950;
2532 wrbuf_rewind(m_backend->m_apdu_wrbuf);
2533 if (apdu_req->which == Z_APDU_initRequest)
2536 package.response() = odr.create_close(
2538 Z_Close_protocolError,
2541 else if (apdu_req->which == Z_APDU_searchRequest)
2543 handle_search(package);
2545 else if (apdu_req->which == Z_APDU_presentRequest)
2547 handle_present(package);
2552 package.response() = odr.create_close(
2554 Z_Close_protocolError,
2555 "zoom filter cannot handle this APDU");
2556 package.session().close();
2560 WRBUF w = m_backend->m_apdu_wrbuf;
2561 package.log_write(wrbuf_buf(w), wrbuf_len(w));
2566 package.session().close();
2570 std::string escape_cql_term(std::string inp)
2573 size_t l = inp.length();
2575 for (i = 0; i < l; i++)
2577 if (strchr("*?^\"", inp[i]))
2584 void yf::Zoom::Frontend::auth(mp::Package &package, Z_InitRequest *req,
2585 int *error, char **addinfo, ODR odr)
2587 if (m_p->torus_auth_url.length() == 0)
2591 std::string password;
2592 if (req->idAuthentication)
2594 Z_IdAuthentication *auth = req->idAuthentication;
2595 switch (auth->which)
2597 case Z_IdAuthentication_open:
2600 const char *cp = strchr(auth->u.open, '/');
2603 user.assign(auth->u.open, cp - auth->u.open);
2604 password.assign(cp + 1);
2608 case Z_IdAuthentication_idPass:
2609 if (auth->u.idPass->userId)
2610 user.assign(auth->u.idPass->userId);
2611 if (auth->u.idPass->password)
2612 password.assign(auth->u.idPass->password);
2617 std::string ip = package.origin().get_address();
2618 yaz_log(YLOG_LOG, "IP=%s", ip.c_str());
2620 std::string torus_query;
2623 if (user.length() && password.length())
2625 torus_query = "userName==\"" + escape_cql_term(user) +
2626 "\" and password==\"" + escape_cql_term(password) + "\"";
2627 failure_code = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
2631 const char *ip_cstr = ip.c_str();
2632 const char *cp = strchr(ip_cstr, ':');
2636 torus_query = "ip encloses/net.ipaddress \"";
2637 torus_query += escape_cql_term(std::string(ip_cstr));
2638 torus_query += "\"";
2639 failure_code = YAZ_BIB1_INIT_AC_BLOCKED_NETWORK_ADDRESS;
2642 std::string dummy_db;
2643 std::string dummy_realm;
2644 xmlDoc *doc = mp::get_searchable(package, m_p->torus_auth_url, dummy_db,
2645 torus_query, dummy_realm, m_p->proxy);
2648 // something fundamental broken in lookup.
2649 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
2650 *addinfo = odr_strdup(odr, "zoom: torus server unavailable or "
2651 "incorrectly configured.");
2654 const xmlNode *ptr = xmlDocGetRootElement(doc);
2655 if (ptr && ptr->type == XML_ELEMENT_NODE)
2657 if (strcmp((const char *) ptr->name, "records") == 0)
2659 ptr = ptr->children;
2660 while (ptr && ptr->type != XML_ELEMENT_NODE)
2663 if (ptr && strcmp((const char *) ptr->name, "record") == 0)
2665 ptr = ptr->children;
2666 while (ptr && ptr->type != XML_ELEMENT_NODE)
2669 if (ptr && strcmp((const char *) ptr->name, "layer") == 0)
2671 ptr = ptr->children;
2672 while (ptr && ptr->type != XML_ELEMENT_NODE)
2677 if (ptr && ptr->type == XML_ELEMENT_NODE &&
2678 !strcmp((const char *) ptr->name, "identityId"))
2685 *error = failure_code;
2688 session_realm = mp::xml::get_text(ptr);
2691 void yf::Zoom::Impl::process(mp::Package &package)
2693 FrontendPtr f = get_frontend(package);
2694 Z_GDU *gdu = package.request().get();
2696 if (f->m_is_virtual)
2698 f->handle_package(package);
2700 else if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which ==
2703 Z_InitRequest *req = gdu->u.z3950->u.initRequest;
2704 f->m_init_gdu = gdu;
2707 Z_APDU *apdu = odr.create_initResponse(gdu->u.z3950, 0, 0);
2708 Z_InitResponse *resp = apdu->u.initResponse;
2711 static const int masks[] = {
2716 for (i = 0; masks[i] != -1; i++)
2717 if (ODR_MASK_GET(req->options, masks[i]))
2718 ODR_MASK_SET(resp->options, masks[i]);
2720 static const int versions[] = {
2721 Z_ProtocolVersion_1,
2722 Z_ProtocolVersion_2,
2723 Z_ProtocolVersion_3,
2726 for (i = 0; versions[i] != -1; i++)
2727 if (ODR_MASK_GET(req->protocolVersion, versions[i]))
2728 ODR_MASK_SET(resp->protocolVersion, versions[i]);
2732 *resp->preferredMessageSize = *req->preferredMessageSize;
2733 *resp->maximumRecordSize = *req->maximumRecordSize;
2737 f->auth(package, req, &error, &addinfo, odr);
2740 resp->userInformationField =
2741 zget_init_diagnostics(odr, error, addinfo);
2743 package.session().close();
2746 f->m_is_virtual = true;
2747 package.response() = apdu;
2752 release_frontend(package);
2756 static mp::filter::Base* filter_creator()
2758 return new mp::filter::Zoom;
2762 struct metaproxy_1_filter_struct metaproxy_1_filter_zoom = {
2773 * c-file-style: "Stroustrup"
2774 * indent-tabs-mode: nil
2776 * vim: shiftwidth=4 tabstop=8 expandtab