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>
54 #include <yaz/otherinfo.h>
56 namespace mp = metaproxy_1;
57 namespace yf = mp::filter;
59 namespace metaproxy_1 {
61 class Zoom::Searchable : boost::noncopyable {
63 std::string authentication;
64 std::string authenticationMode;
70 std::string query_encoding;
72 std::string sru_version;
73 std::string request_syntax;
74 std::string element_set;
75 std::string record_encoding;
76 std::string transform_xsl_fname;
77 std::string transform_xsl_content;
78 std::string urlRecipe;
79 std::string contentConnector;
80 std::string sortStrategy;
81 std::string extraArgs;
82 std::string rpn2cql_fname;
85 CCL_bibset ccl_bibset;
86 std::map<std::string, std::string> sortmap;
87 Searchable(CCL_bibset base);
90 class Zoom::Backend : boost::noncopyable {
92 friend class Frontend;
94 mp::wrbuf m_apdu_wrbuf;
95 ZOOM_connection m_connection;
96 ZOOM_resultset m_resultset;
97 std::string m_frontend_database;
99 xsltStylesheetPtr xsp;
100 std::string cproxy_host;
105 cql_transform_t cqlt;
109 void connect(std::string zurl, int *error, char **addinfo,
111 void search(ZOOM_query q, Odr_int *hits,
112 int *error, char **addinfo, Z_FacetList **fl, ODR odr);
113 void present(Odr_int start, Odr_int number, ZOOM_record *recs,
114 int *error, char **addinfo, ODR odr);
115 void set_option(const char *name, const char *value);
116 void set_option(const char *name, const char *value, size_t l);
117 void set_option(const char *name, std::string value);
118 const char *get_option(const char *name);
119 void get_zoom_error(int *error, char **addinfo, ODR odr);
121 class Zoom::Frontend : boost::noncopyable {
126 std::string session_realm;
127 yazpp_1::GDU m_init_gdu;
128 BackendPtr m_backend;
129 void handle_package(mp::Package &package);
130 void handle_search(mp::Package &package);
131 void auth(mp::Package &package, Z_InitRequest *req,
132 int *error, char **addinfo, ODR odr);
134 BackendPtr explain_search(mp::Package &package,
135 std::string &database,
139 std::string torus_url,
140 std::string &torus_db,
142 void handle_present(mp::Package &package);
143 BackendPtr get_backend_from_databases(mp::Package &package,
144 std::string &database,
150 bool create_content_session(mp::Package &package,
155 std::string authentication,
159 void prepare_elements(BackendPtr b,
160 Odr_oid *preferredRecordSyntax,
161 const char *element_set_name,
162 bool &enable_pz2_retrieval,
163 bool &enable_pz2_transform,
164 bool &enable_record_transform,
165 bool &assume_marc8_charset);
167 Z_Records *get_records(Package &package,
169 Odr_int number_to_present,
172 Odr_int *number_of_records_returned,
173 ODR odr, BackendPtr b,
174 Odr_oid *preferredRecordSyntax,
175 const char *element_set_name);
176 Z_Records *get_explain_records(Package &package,
178 Odr_int number_to_present,
181 Odr_int *number_of_records_returned,
182 ODR odr, BackendPtr b,
183 Odr_oid *preferredRecordSyntax,
184 const char *element_set_name);
185 bool retry(mp::Package &package,
188 int &error, char **addinfo,
189 int &proxy_step, int &same_retries,
191 void log_diagnostic(mp::Package &package,
192 int error, const char *addinfo);
194 Frontend(Impl *impl);
198 friend class Frontend;
202 void process(metaproxy_1::Package & package);
203 void configure(const xmlNode * ptr, bool test_only,
206 void configure_local_records(const xmlNode * ptr, bool test_only);
207 bool check_proxy(const char *proxy);
211 FrontendPtr get_frontend(mp::Package &package);
212 void release_frontend(mp::Package &package);
213 SearchablePtr parse_torus_record(const xmlNode *ptr);
214 struct cql_node *convert_cql_fields(struct cql_node *cn, ODR odr);
215 std::map<mp::Session, FrontendPtr> m_clients;
216 boost::mutex m_mutex;
217 boost::condition m_cond_session_ready;
218 std::string torus_searchable_url;
219 std::string torus_content_url;
220 std::string torus_auth_url;
221 std::string default_realm;
222 std::map<std::string,std::string> fieldmap;
224 std::string file_path;
225 std::string content_proxy_server;
226 std::string content_tmp_file;
227 std::string content_config_file;
230 std::string element_transform;
231 std::string element_raw;
232 std::string element_passthru;
234 xsltStylesheetPtr explain_xsp;
235 xsltStylesheetPtr record_xsp;
236 std::map<std::string,SearchablePtr> s_map;
237 std::string zoom_timeout;
244 static xmlNode *xml_node_search(xmlNode *ptr, int *num, int m)
248 if (ptr->type == XML_ELEMENT_NODE &&
249 !strcmp((const char *) ptr->name, "recordData"))
255 else // else: we don't want to find nested nodes
257 xmlNode *ret_node = xml_node_search(ptr->children, num, m);
266 // define Pimpl wrapper forwarding to Impl
268 yf::Zoom::Zoom() : m_p(new Impl)
273 { // must have a destructor because of boost::scoped_ptr
276 void yf::Zoom::configure(const xmlNode *xmlnode, bool test_only,
279 m_p->configure(xmlnode, test_only, path);
282 void yf::Zoom::process(mp::Package &package) const
284 m_p->process(package);
288 // define Implementation stuff
290 yf::Zoom::Backend::Backend()
292 m_connection = ZOOM_connection_create(0);
293 ZOOM_connection_save_apdu_wrbuf(m_connection, m_apdu_wrbuf);
296 enable_cproxy = true;
297 enable_explain = false;
302 yf::Zoom::Backend::~Backend()
305 xsltFreeStylesheet(xsp);
307 xmlFreeDoc(explain_doc);
308 cql_transform_close(cqlt);
309 ZOOM_connection_destroy(m_connection);
310 ZOOM_resultset_destroy(m_resultset);
314 void yf::Zoom::Backend::get_zoom_error(int *error, char **addinfo,
318 const char *zoom_addinfo = 0;
319 const char *dset = 0;
320 int error0 = ZOOM_connection_error_x(m_connection, &msg,
321 &zoom_addinfo, &dset);
327 if (!strcmp(dset, "info:srw/diagnostic/1"))
328 *error = yaz_diag_srw_to_bib1(error0);
329 else if (!strcmp(dset, "Bib-1"))
331 else if (!strcmp(dset, "ZOOM"))
333 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
334 if (error0 == ZOOM_ERROR_INIT)
335 *error = YAZ_BIB1_INIT_AC_AUTHENTICATION_SYSTEM_ERROR;
336 else if (error0 == ZOOM_ERROR_DECODE)
340 if (strstr(zoom_addinfo, "Authentication") ||
341 strstr(zoom_addinfo, "authentication"))
342 *error = YAZ_BIB1_INIT_AC_AUTHENTICATION_SYSTEM_ERROR;
347 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
349 *addinfo = (char *) odr_malloc(
350 odr, 30 + strlen(dset) + strlen(msg) +
351 (zoom_addinfo ? strlen(zoom_addinfo) : 0));
353 if (zoom_addinfo && *zoom_addinfo)
355 strcpy(*addinfo, zoom_addinfo);
356 strcat(*addinfo, " ");
358 sprintf(*addinfo + strlen(*addinfo), "(%s %d %s)", dset, error0, msg);
362 void yf::Zoom::Backend::connect(std::string zurl,
363 int *error, char **addinfo,
366 size_t h = zurl.find_first_of('#');
367 if (h != std::string::npos)
369 ZOOM_connection_connect(m_connection, zurl.length() ? zurl.c_str() : 0, 0);
370 get_zoom_error(error, addinfo, odr);
374 void yf::Zoom::Backend::search(ZOOM_query q, Odr_int *hits,
375 int *error, char **addinfo, Z_FacetList **flp,
378 ZOOM_resultset_destroy(m_resultset);
382 WRBUF w = wrbuf_alloc();
383 yaz_facet_list_to_wrbuf(w, *flp);
384 set_option("facets", wrbuf_cstr(w));
387 m_resultset = ZOOM_connection_search(m_connection, q);
388 get_zoom_error(error, addinfo, odr);
390 *hits = ZOOM_resultset_size(m_resultset);
394 size_t num_facets = ZOOM_resultset_facets_size(m_resultset);
398 Z_FacetList *fl = (Z_FacetList *) odr_malloc(odr, sizeof(*fl));
399 fl->elements = (Z_FacetField **)
400 odr_malloc(odr, num_facets * sizeof(*fl->elements));
401 for (i = 0; i < num_facets; i++)
403 ZOOM_facet_field ff =
404 ZOOM_resultset_get_facet_field_by_index(m_resultset, i);
407 Z_AttributeList *al = (Z_AttributeList *)
408 odr_malloc(odr, sizeof(*al));
409 al->num_attributes = 1;
410 al->attributes = (Z_AttributeElement **)
411 odr_malloc(odr, sizeof(*al->attributes));
412 Z_AttributeElement *ae = al->attributes[0] = (Z_AttributeElement *)
413 odr_malloc(odr, sizeof(**al->attributes));
414 ae->attributeSet = 0;
415 ae->attributeType = odr_intdup(odr, 1);
416 ae->which = Z_AttributeValue_complex;
417 ae->value.complex = (Z_ComplexAttribute *)
418 odr_malloc(odr, sizeof(*ae->value.complex));
419 ae->value.complex->num_list = 1;
420 ae->value.complex->list = (Z_StringOrNumeric **)
421 odr_malloc(odr, sizeof(**ae->value.complex->list));
422 ae->value.complex->list[0] = (Z_StringOrNumeric *)
423 odr_malloc(odr, sizeof(**ae->value.complex->list));
424 ae->value.complex->list[0]->which = Z_StringOrNumeric_string;
425 ae->value.complex->list[0]->u.string =
426 odr_strdup(odr, ZOOM_facet_field_name(ff));
427 ae->value.complex->num_semanticAction = 0;
428 ae->value.complex->semanticAction = 0;
430 int num_terms = ZOOM_facet_field_term_count(ff);
431 fl->elements[i] = (Z_FacetField *)
432 odr_malloc(odr, sizeof(Z_FacetField));
433 fl->elements[i]->attributes = al;
434 fl->elements[i]->num_terms = num_terms;
435 fl->elements[i]->terms = (Z_FacetTerm **)
436 odr_malloc(odr, num_terms * sizeof(Z_FacetTerm *));
438 for (j = 0; j < num_terms; j++)
441 const char *a_term = ZOOM_facet_field_get_term(ff, j, &freq);
442 Z_FacetTerm *ft = (Z_FacetTerm *) odr_malloc(odr, sizeof(*ft));
443 ft->term = z_Term_create(odr, Z_Term_general, a_term,
445 ft->count = odr_intdup(odr, freq);
447 fl->elements[i]->terms[j] = ft;
455 void yf::Zoom::Backend::present(Odr_int start, Odr_int number,
457 int *error, char **addinfo, ODR odr)
459 ZOOM_resultset_records(m_resultset, recs, start, number);
460 get_zoom_error(error, addinfo, odr);
464 void yf::Zoom::Backend::set_option(const char *name, const char *value, size_t l)
466 ZOOM_connection_option_setl(m_connection, name, value, l);
469 void yf::Zoom::Backend::set_option(const char *name, const char *value)
471 ZOOM_connection_option_set(m_connection, name, value);
473 ZOOM_resultset_option_set(m_resultset, name, value);
476 void yf::Zoom::Backend::set_option(const char *name, std::string value)
478 set_option(name, value.c_str());
481 const char *yf::Zoom::Backend::get_option(const char *name)
483 return ZOOM_connection_option_get(m_connection, name);
486 yf::Zoom::Searchable::Searchable(CCL_bibset base)
489 use_turbomarc = true;
490 sortStrategy = "embed";
491 ccl_bibset = ccl_qual_dup(base);
494 yf::Zoom::Searchable::~Searchable()
496 ccl_qual_rm(&ccl_bibset);
499 yf::Zoom::Frontend::Frontend(Impl *impl) :
500 m_p(impl), m_is_virtual(false), m_in_use(true)
504 yf::Zoom::Frontend::~Frontend()
508 yf::Zoom::FrontendPtr yf::Zoom::Impl::get_frontend(mp::Package &package)
510 boost::mutex::scoped_lock lock(m_mutex);
512 std::map<mp::Session,yf::Zoom::FrontendPtr>::iterator it;
516 it = m_clients.find(package.session());
517 if (it == m_clients.end())
520 if (!it->second->m_in_use)
522 it->second->m_in_use = true;
525 m_cond_session_ready.wait(lock);
527 FrontendPtr f(new Frontend(this));
528 m_clients[package.session()] = f;
533 void yf::Zoom::Impl::release_frontend(mp::Package &package)
535 boost::mutex::scoped_lock lock(m_mutex);
536 std::map<mp::Session,yf::Zoom::FrontendPtr>::iterator it;
538 it = m_clients.find(package.session());
539 if (it != m_clients.end())
541 if (package.session().is_closed())
547 it->second->m_in_use = false;
549 m_cond_session_ready.notify_all();
553 yf::Zoom::Impl::Impl() :
554 apdu_log(false), element_transform("pz2") , element_raw("raw") ,
555 element_passthru("F"),
556 zoom_timeout("40"), proxy_timeout(1)
558 bibset = ccl_qual_mk();
562 srand((unsigned int) time(0));
565 yf::Zoom::Impl::~Impl()
568 xsltFreeStylesheet(explain_xsp);
569 ccl_qual_rm(&bibset);
572 yf::Zoom::SearchablePtr yf::Zoom::Impl::parse_torus_record(const xmlNode *ptr)
574 Zoom::SearchablePtr s(new Searchable(bibset));
576 for (ptr = ptr->children; ptr; ptr = ptr->next)
578 if (ptr->type != XML_ELEMENT_NODE)
580 if (!strcmp((const char *) ptr->name, "layer"))
582 else if (!strcmp((const char *) ptr->name,
585 s->authentication = mp::xml::get_text(ptr);
587 else if (!strcmp((const char *) ptr->name,
588 "authenticationMode"))
590 s->authenticationMode = mp::xml::get_text(ptr);
592 else if (!strcmp((const char *) ptr->name,
595 s->cfAuth = mp::xml::get_text(ptr);
597 else if (!strcmp((const char *) ptr->name,
600 s->cfProxy = mp::xml::get_text(ptr);
602 else if (!strcmp((const char *) ptr->name,
605 s->cfSubDB = mp::xml::get_text(ptr);
607 else if (!strcmp((const char *) ptr->name,
610 s->contentConnector = mp::xml::get_text(ptr);
612 else if (!strcmp((const char *) ptr->name, "udb"))
614 s->udb = mp::xml::get_text(ptr);
616 else if (!strcmp((const char *) ptr->name, "zurl"))
618 s->target = mp::xml::get_text(ptr);
620 else if (!strcmp((const char *) ptr->name, "sru"))
622 s->sru = mp::xml::get_text(ptr);
624 else if (!strcmp((const char *) ptr->name, "SRUVersion") ||
625 !strcmp((const char *) ptr->name, "sruVersion"))
627 s->sru_version = mp::xml::get_text(ptr);
629 else if (!strcmp((const char *) ptr->name,
632 s->query_encoding = mp::xml::get_text(ptr);
634 else if (!strcmp((const char *) ptr->name,
637 s->piggyback = mp::xml::get_bool(ptr, true);
639 else if (!strcmp((const char *) ptr->name,
642 s->request_syntax = mp::xml::get_text(ptr);
644 else if (!strcmp((const char *) ptr->name,
647 s->element_set = mp::xml::get_text(ptr);
649 else if (!strcmp((const char *) ptr->name,
652 s->record_encoding = mp::xml::get_text(ptr);
654 else if (!strcmp((const char *) ptr->name,
657 s->transform_xsl_fname = mp::xml::get_text(ptr);
659 else if (!strcmp((const char *) ptr->name,
662 s->transform_xsl_content = mp::xml::get_text(ptr);
664 else if (!strcmp((const char *) ptr->name,
667 s->urlRecipe = mp::xml::get_text(ptr);
669 else if (!strcmp((const char *) ptr->name,
672 ; // useTurboMarc is ignored
674 else if (!strncmp((const char *) ptr->name,
677 std::string value = mp::xml::get_text(ptr);
678 if (value.length() > 0)
680 ccl_qual_fitem(s->ccl_bibset, value.c_str(),
681 (const char *) ptr->name + 7);
684 else if (!strncmp((const char *) ptr->name,
687 std::string value = mp::xml::get_text(ptr);
688 s->sortmap[(const char *) ptr->name + 8] = value;
690 else if (!strcmp((const char *) ptr->name,
693 s->sortStrategy = mp::xml::get_text(ptr);
695 else if (!strcmp((const char *) ptr->name,
698 s->extraArgs = mp::xml::get_text(ptr);
700 else if (!strcmp((const char *) ptr->name, "rpn2cql"))
701 s->rpn2cql_fname = mp::xml::get_text(ptr);
706 void yf::Zoom::Impl::configure_local_records(const xmlNode *ptr, bool test_only)
708 while (ptr && ptr->type != XML_ELEMENT_NODE)
713 if (!strcmp((const char *) ptr->name, "records"))
715 for (ptr = ptr->children; ptr; ptr = ptr->next)
717 if (ptr->type != XML_ELEMENT_NODE)
719 if (!strcmp((const char *) ptr->name, "record"))
721 SearchablePtr s = parse_torus_record(ptr);
724 std::string udb = s->udb;
729 throw mp::filter::FilterException
730 ("No udb for local torus record");
736 throw mp::filter::FilterException
738 + std::string((const char *) ptr->name)
739 + " in zoom filter inside element "
746 throw mp::filter::FilterException
748 + std::string((const char *) ptr->name)
749 + " in zoom filter inside element <torus>");
754 void yf::Zoom::Impl::configure(const xmlNode *ptr, bool test_only,
757 std::string explain_xslt_fname;
758 std::string record_xslt_fname;
764 for (ptr = ptr->children; ptr; ptr = ptr->next)
766 if (ptr->type != XML_ELEMENT_NODE)
768 else if (!strcmp((const char *) ptr->name, "torus"))
770 const struct _xmlAttr *attr;
771 for (attr = ptr->properties; attr; attr = attr->next)
773 if (!strcmp((const char *) attr->name, "url"))
774 torus_searchable_url = mp::xml::get_text(attr->children);
775 else if (!strcmp((const char *) attr->name, "content_url"))
776 torus_content_url = mp::xml::get_text(attr->children);
777 else if (!strcmp((const char *) attr->name, "auth_url"))
778 torus_auth_url = mp::xml::get_text(attr->children);
779 else if (!strcmp((const char *) attr->name, "realm"))
780 default_realm = mp::xml::get_text(attr->children);
781 else if (!strcmp((const char *) attr->name, "xsldir"))
782 xsldir = mp::xml::get_text(attr->children);
783 else if (!strcmp((const char *) attr->name, "element_transform"))
784 element_transform = mp::xml::get_text(attr->children);
785 else if (!strcmp((const char *) attr->name, "element_raw"))
786 element_raw = mp::xml::get_text(attr->children);
787 else if (!strcmp((const char *) attr->name, "element_passthru"))
788 element_passthru = mp::xml::get_text(attr->children);
789 else if (!strcmp((const char *) attr->name, "proxy"))
790 proxy = mp::xml::get_text(attr->children);
791 else if (!strcmp((const char *) attr->name, "explain_xsl"))
792 explain_xslt_fname = mp::xml::get_text(attr->children);
793 else if (!strcmp((const char *) attr->name, "record_xsl"))
794 record_xslt_fname = mp::xml::get_text(attr->children);
796 throw mp::filter::FilterException(
797 "Bad attribute " + std::string((const char *)
800 // If content_url is not given, use value of searchable, to
801 // ensure backwards compatibility
802 if (!torus_content_url.length())
803 torus_content_url = torus_searchable_url;
804 configure_local_records(ptr->children, test_only);
806 else if (!strcmp((const char *) ptr->name, "cclmap"))
808 const char *addinfo = 0;
809 ccl_xml_config(bibset, ptr, &addinfo);
811 else if (!strcmp((const char *) ptr->name, "fieldmap"))
813 const struct _xmlAttr *attr;
814 std::string ccl_field;
815 std::string cql_field;
816 for (attr = ptr->properties; attr; attr = attr->next)
818 if (!strcmp((const char *) attr->name, "ccl"))
819 ccl_field = mp::xml::get_text(attr->children);
820 else if (!strcmp((const char *) attr->name, "cql"))
821 cql_field = mp::xml::get_text(attr->children);
823 throw mp::filter::FilterException(
824 "Bad attribute " + std::string((const char *)
827 if (cql_field.length())
828 fieldmap[cql_field] = ccl_field;
830 else if (!strcmp((const char *) ptr->name, "contentProxy"))
832 const struct _xmlAttr *attr;
833 for (attr = ptr->properties; attr; attr = attr->next)
835 if (!strcmp((const char *) attr->name, "server"))
838 "contentProxy's server attribute is deprecated");
840 "Specify config_file instead. For example:");
842 " content_file=\"/etc/cf-proxy/cproxy.cfg\"");
843 content_proxy_server = mp::xml::get_text(attr->children);
845 else if (!strcmp((const char *) attr->name, "tmp_file"))
846 content_tmp_file = mp::xml::get_text(attr->children);
847 else if (!strcmp((const char *) attr->name, "config_file"))
848 content_config_file = mp::xml::get_text(attr->children);
850 throw mp::filter::FilterException(
851 "Bad attribute " + std::string((const char *)
855 else if (!strcmp((const char *) ptr->name, "log"))
857 const struct _xmlAttr *attr;
858 for (attr = ptr->properties; attr; attr = attr->next)
860 if (!strcmp((const char *) attr->name, "apdu"))
861 apdu_log = mp::xml::get_bool(attr->children, false);
863 throw mp::filter::FilterException(
864 "Bad attribute " + std::string((const char *)
868 else if (!strcmp((const char *) ptr->name, "zoom"))
870 const struct _xmlAttr *attr;
871 for (attr = ptr->properties; attr; attr = attr->next)
873 if (!strcmp((const char *) attr->name, "timeout"))
874 zoom_timeout = mp::xml::get_text(attr->children);
875 else if (!strcmp((const char *) attr->name, "proxy_timeout"))
876 proxy_timeout = mp::xml::get_int(attr->children, 1);
878 throw mp::filter::FilterException(
879 "Bad attribute " + std::string((const char *)
885 throw mp::filter::FilterException
887 + std::string((const char *) ptr->name)
888 + " in zoom filter");
892 if (explain_xslt_fname.length())
894 const char *path = 0;
897 path = xsldir.c_str();
899 path = file_path.c_str();
902 char *cp = yaz_filepath_resolve(explain_xslt_fname.c_str(),
906 throw mp::filter::FilterException
907 ("Cannot read XSLT " + explain_xslt_fname);
910 xmlDoc *xsp_doc = xmlParseFile(cp);
913 throw mp::filter::FilterException
914 ("Cannot parse XSLT " + explain_xslt_fname);
917 explain_xsp = xsltParseStylesheetDoc(xsp_doc);
921 throw mp::filter::FilterException
922 ("Cannot parse XSLT " + explain_xslt_fname);
927 if (record_xslt_fname.length())
929 const char *path = 0;
932 path = xsldir.c_str();
934 path = file_path.c_str();
937 char *cp = yaz_filepath_resolve(record_xslt_fname.c_str(),
941 throw mp::filter::FilterException
942 ("Cannot read XSLT " + record_xslt_fname);
945 xmlDoc *xsp_doc = xmlParseFile(cp);
948 throw mp::filter::FilterException
949 ("Cannot parse XSLT " + record_xslt_fname);
952 record_xsp = xsltParseStylesheetDoc(xsp_doc);
956 throw mp::filter::FilterException
957 ("Cannot parse XSLT " + record_xslt_fname);
963 bool yf::Zoom::Frontend::create_content_session(mp::Package &package,
965 int *error, char **addinfo,
967 std::string authentication,
971 if (b->sptr->contentConnector.length())
973 std::string proxyhostname;
974 std::string tmp_file;
975 bool legacy_format = false;
977 if (m_p->content_proxy_server.length())
979 proxyhostname = m_p->content_proxy_server;
980 legacy_format = true;
983 if (m_p->content_tmp_file.length())
984 tmp_file = m_p->content_tmp_file;
986 if (m_p->content_config_file.length())
988 FILE *inf = fopen(m_p->content_config_file.c_str(), "r");
992 while (fgets(buf, sizeof(buf)-1, inf))
995 cp = strchr(buf, '#');
998 cp = strchr(buf, '\n');
1001 cp = strchr(buf, ':');
1005 while (cp1 != buf && cp1[-1] == ' ')
1011 if (!strcmp(buf, "proxyhostname"))
1013 if (!strcmp(buf, "sessiondir") && *cp)
1015 if (cp[strlen(cp)-1] == '/')
1016 cp[strlen(cp)-1] = '\0';
1017 tmp_file = std::string(cp) + std::string("/cf.XXXXXX.p");
1025 package.log("zoom", YLOG_WARN|YLOG_ERRNO,
1026 "unable to open content config %s",
1027 m_p->content_config_file.c_str());
1028 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1029 *addinfo = (char *) odr_malloc(odr, 70 + tmp_file.length());
1030 sprintf(*addinfo, "zoom: unable to open content config %s",
1031 m_p->content_config_file.c_str());
1036 if (proxyhostname.length() == 0)
1038 package.log("zoom", YLOG_WARN, "no proxyhostname");
1041 if (tmp_file.length() == 0)
1043 package.log("zoom", YLOG_WARN, "no tmp_file");
1047 char *fname = xstrdup(tmp_file.c_str());
1048 char *xx = strstr(fname, "XXXXXX");
1051 package.log("zoom", YLOG_WARN, "bad tmp_file %s", tmp_file.c_str());
1052 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1053 *addinfo = (char *) odr_malloc(odr, 60 + tmp_file.length());
1054 sprintf(*addinfo, "zoom: bad format of content tmp_file: %s",
1059 char tmp_char = xx[6];
1060 sprintf(xx, "%06d", ((unsigned) rand()) % 1000000);
1062 b->cproxy_host = std::string(xx) + "." + proxyhostname;
1064 b->cproxy_host = proxyhostname + "/" + xx;
1067 FILE *file = fopen(fname, "w");
1070 package.log("zoom", YLOG_WARN|YLOG_ERRNO, "create %s", fname);
1071 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1072 *addinfo = (char *) odr_malloc(odr, 50 + strlen(fname));
1073 sprintf(*addinfo, "zoom: could not create %s", fname);
1078 wrbuf_puts(w, "#content_proxy\n");
1079 wrbuf_printf(w, "connector: %s\n", b->sptr->contentConnector.c_str());
1080 if (authentication.length())
1081 wrbuf_printf(w, "auth: %s\n", authentication.c_str());
1083 wrbuf_printf(w, "proxy: %s\n", proxy.c_str());
1085 wrbuf_printf(w, "realm: %s\n", realm.c_str());
1087 fwrite(w.buf(), 1, w.len(), file);
1089 package.log("zoom", YLOG_LOG, "content file: %s", fname);
1095 yf::Zoom::BackendPtr yf::Zoom::Frontend::get_backend_from_databases(
1096 mp::Package &package,
1097 std::string &database, int *error, char **addinfo, mp::odr &odr,
1100 bool connection_reuse = false;
1103 std::list<BackendPtr>::const_iterator map_it;
1104 if (m_backend && !m_backend->enable_explain &&
1105 m_backend->m_frontend_database == database)
1107 connection_reuse = true;
1108 proxy = m_backend->m_proxy;
1111 std::string input_args;
1112 std::string torus_db;
1113 size_t db_arg_pos = database.find(',');
1114 if (db_arg_pos != std::string::npos)
1116 torus_db = database.substr(0, db_arg_pos);
1117 input_args = database.substr(db_arg_pos + 1);
1120 torus_db = database;
1122 std::string authentication;
1123 std::string content_authentication;
1124 std::string content_proxy;
1125 std::string realm = session_realm;
1126 if (realm.length() == 0)
1127 realm = m_p->default_realm;
1129 const char *param_user = 0;
1130 const char *param_password = 0;
1131 const char *param_content_user = 0;
1132 const char *param_content_password = 0;
1133 const char *param_nocproxy = 0;
1138 int no_out_args = 0;
1139 if (input_args.length())
1140 no_parms = yaz_uri_to_array(input_args.c_str(),
1141 odr, &names, &values);
1142 // adding 10 because we'll be adding other URL args
1143 const char **out_names = (const char **)
1144 odr_malloc(odr, (10 + no_parms) * sizeof(*out_names));
1145 const char **out_values = (const char **)
1146 odr_malloc(odr, (10 + no_parms) * sizeof(*out_values));
1148 // may be changed if it's a content connection
1149 std::string torus_url = m_p->torus_searchable_url;
1151 for (i = 0; i < no_parms; i++)
1153 const char *name = names[i];
1154 const char *value = values[i];
1157 if (!strcmp(name, "user"))
1159 else if (!strcmp(name, "password"))
1160 param_password = value;
1161 else if (!strcmp(name, "content-user"))
1162 param_content_user = value;
1163 else if (!strcmp(name, "content-password"))
1164 param_content_password = value;
1165 else if (!strcmp(name, "content-proxy"))
1166 content_proxy = value;
1167 else if (!strcmp(name, "nocproxy"))
1168 param_nocproxy = value;
1169 else if (!strcmp(name, "proxy"))
1173 nmem_strsplit(((ODR) odr)->mem, ",", value, &dstr, &dnum);
1174 if (connection_reuse)
1176 // find the step after our current proxy
1178 for (i = 0; i < dnum; i++)
1179 if (!strcmp(proxy.c_str(), dstr[i]))
1184 *proxy_step = i + 1;
1188 // step is known.. Guess our proxy from it
1189 if (*proxy_step >= dnum)
1193 proxy = dstr[*proxy_step];
1196 if (*proxy_step == dnum)
1201 else if (!strcmp(name, "cproxysession"))
1203 out_names[no_out_args] = name;
1204 out_values[no_out_args++] = value;
1205 torus_url = m_p->torus_content_url;
1207 else if (!strcmp(name, "realm") && session_realm.length() == 0)
1209 else if (!strcmp(name, "torus_url") && session_realm.length() == 0)
1211 else if (name[0] == 'x' && name[1] == '-')
1213 out_names[no_out_args] = name;
1214 out_values[no_out_args++] = value;
1218 BackendPtr notfound;
1219 char *msg = (char*) odr_malloc(odr, strlen(name) + 30);
1220 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1221 sprintf(msg, "zoom: bad database argument: %s", name);
1227 package.log("zoom", YLOG_LOG, "proxy: %s", proxy.c_str());
1229 if (connection_reuse)
1231 m_backend->connect("", error, addinfo, odr);
1237 authentication = std::string(param_user);
1239 authentication += "/" + std::string(param_password);
1241 if (param_content_user)
1243 content_authentication = std::string(param_content_user);
1244 if (param_content_password)
1245 content_authentication += "/" + std::string(param_content_password);
1248 if (torus_db.compare("IR-Explain---1") == 0)
1249 return explain_search(package, database, error, addinfo, odr, torus_url,
1254 std::map<std::string,SearchablePtr>::iterator it;
1255 it = m_p->s_map.find(torus_db);
1256 if (it != m_p->s_map.end())
1258 else if (torus_url.length() > 0)
1260 std::string torus_query = "udb==" + torus_db;
1261 xmlDoc *doc = mp::get_searchable(package,torus_url, torus_db,
1266 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1267 *addinfo = odr_strdup(odr, "Torus server unavailable or "
1268 "incorrectly configured");
1272 const xmlNode *ptr = xmlDocGetRootElement(doc);
1273 if (ptr && ptr->type == XML_ELEMENT_NODE)
1275 if (!strcmp((const char *) ptr->name, "record"))
1277 sptr = m_p->parse_torus_record(ptr);
1279 else if (!strcmp((const char *) ptr->name, "records"))
1281 for (ptr = ptr->children; ptr; ptr = ptr->next)
1283 if (ptr->type == XML_ELEMENT_NODE
1284 && !strcmp((const char *) ptr->name, "record"))
1288 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1290 odr_malloc(odr, 40 + torus_db.length());
1291 sprintf(*addinfo, "multiple records for udb=%s",
1297 sptr = m_p->parse_torus_record(ptr);
1303 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
1304 *addinfo = (char*) odr_malloc(
1305 odr, 40 + strlen((const char *) ptr->name));
1306 sprintf(*addinfo, "bad root element for torus: %s", ptr->name);
1317 *error = YAZ_BIB1_DATABASE_DOES_NOT_EXIST;
1318 *addinfo = odr_strdup(odr, torus_db.c_str());
1323 xsltStylesheetPtr xsp = 0;
1324 if (sptr->transform_xsl_content.length())
1326 xmlDoc *xsp_doc = xmlParseMemory(sptr->transform_xsl_content.c_str(),
1327 sptr->transform_xsl_content.length());
1330 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1331 *addinfo = odr_strdup(odr, "zoom: xmlParseMemory failed "
1332 "for literalTransform XSL");
1336 xsp = xsltParseStylesheetDoc(xsp_doc);
1339 *error = YAZ_BIB1_DATABASE_DOES_NOT_EXIST;
1341 odr_strdup(odr,"zoom: xsltParseStylesheetDoc failed "
1342 "for literalTransform XSL");
1344 xmlFreeDoc(xsp_doc);
1348 else if (sptr->transform_xsl_fname.length())
1350 const char *path = 0;
1352 if (m_p->xsldir.length())
1353 path = m_p->xsldir.c_str();
1355 path = m_p->file_path.c_str();
1358 char fullpath[1024];
1359 char *cp = yaz_filepath_resolve(sptr->transform_xsl_fname.c_str(),
1365 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1367 odr_malloc(odr, 40 + sptr->transform_xsl_fname.length());
1368 sprintf(*addinfo, "zoom: could not open file %s",
1369 sptr->transform_xsl_fname.c_str());
1373 xmlDoc *xsp_doc = xmlParseFile(fname.c_str());
1376 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1377 *addinfo = (char *) odr_malloc(odr, 50 + fname.length());
1378 sprintf(*addinfo, "zoom: xmlParseFile failed for file %s",
1383 xsp = xsltParseStylesheetDoc(xsp_doc);
1386 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1387 *addinfo = (char *) odr_malloc(odr, 50 + fname.length());
1388 sprintf(*addinfo, "zoom: xsltParseStylesheetDoc failed "
1389 "for file %s", fname.c_str());
1391 xmlFreeDoc(xsp_doc);
1396 cql_transform_t cqlt = 0;
1397 if (sptr->rpn2cql_fname.length())
1399 char fullpath[1024];
1400 char *cp = yaz_filepath_resolve(sptr->rpn2cql_fname.c_str(),
1401 m_p->file_path.c_str(), 0, fullpath);
1403 cqlt = cql_transform_open_fname(fullpath);
1406 cqlt = cql_transform_create();
1410 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1411 *addinfo = odr_strdup(odr, "zoom: missing/invalid cql2rpn file");
1413 xsltFreeStylesheet(xsp);
1419 BackendPtr b(new Backend);
1424 b->m_frontend_database = database;
1425 b->enable_cproxy = param_nocproxy ? false : true;
1427 if (sptr->query_encoding.length())
1428 b->set_option("rpnCharset", sptr->query_encoding);
1430 std::string extraArgs = sptr->extraArgs;
1432 b->set_option("timeout", m_p->zoom_timeout.c_str());
1435 b->set_option("apdulog", "1");
1437 if (sptr->piggyback && sptr->sru.length())
1438 b->set_option("count", "1"); /* some SRU servers INSIST on getting
1439 maximumRecords > 0 */
1440 b->set_option("piggyback", sptr->piggyback ? "1" : "0");
1442 if (authentication.length() == 0)
1443 authentication = sptr->authentication;
1445 if (proxy.length() == 0)
1446 proxy = sptr->cfProxy;
1449 if (sptr->cfAuth.length())
1452 b->set_option("user", sptr->cfAuth);
1453 if (authentication.length())
1455 size_t found = authentication.find('/');
1456 if (found != std::string::npos)
1458 out_names[no_out_args] = "user";
1459 out_values[no_out_args++] =
1460 odr_strdup(odr, authentication.substr(0, found).c_str());
1462 out_names[no_out_args] = "password";
1463 out_values[no_out_args++] =
1464 odr_strdup(odr, authentication.substr(found+1).c_str());
1468 out_names[no_out_args] = "user";
1469 out_values[no_out_args++] =
1470 odr_strdup(odr, authentication.c_str());
1475 out_names[no_out_args] = "proxy";
1476 out_values[no_out_args++] = odr_strdup(odr, proxy.c_str());
1478 if (sptr->cfSubDB.length())
1480 out_names[no_out_args] = "subdatabase";
1481 out_values[no_out_args++] = odr_strdup(odr, sptr->cfSubDB.c_str());
1483 if (!param_nocproxy && b->sptr->contentConnector.length())
1484 param_nocproxy = "1";
1488 out_names[no_out_args] = "nocproxy";
1489 out_values[no_out_args++] = odr_strdup(odr, param_nocproxy);
1494 const char *auth = authentication.c_str();
1495 const char *cp1 = strchr(auth, ' ');
1496 if (!cp1 && sptr->sru.length())
1497 cp1 = strchr(auth, '/');
1500 /* Z39.50 user/password style, or no password for SRU */
1501 b->set_option("user", auth);
1505 /* now consider group as well */
1506 const char *cp2 = strchr(cp1 + 1, ' ');
1508 b->set_option("user", auth, cp1 - auth);
1510 b->set_option("password", cp1 + 1);
1513 b->set_option("group", cp1 + 1, cp2 - cp1 - 1);
1514 b->set_option("password", cp2 + 1);
1517 if (sptr->authenticationMode.length())
1518 b->set_option("authenticationMode", sptr->authenticationMode);
1520 b->set_option("proxy", proxy);
1522 if (extraArgs.length())
1523 b->set_option("extraArgs", extraArgs);
1525 std::string url(sptr->target);
1526 if (sptr->sru.length())
1528 b->set_option("sru", sptr->sru);
1529 if (url.find("://") == std::string::npos)
1530 url = "http://" + url;
1531 if (sptr->sru_version.length())
1532 b->set_option("sru_version", sptr->sru_version);
1537 out_names[no_out_args] = 0; // terminate list
1539 yaz_array_to_uri(&x_args, odr, (char **) out_names,
1540 (char **) out_values);
1541 url += "," + std::string(x_args);
1543 package.log("zoom", YLOG_LOG, "url: %s", url.c_str());
1544 b->connect(url, error, addinfo, odr);
1545 if (*error == 0 && b->enable_cproxy)
1546 create_content_session(package, b, error, addinfo, odr,
1547 content_authentication.length() ?
1548 content_authentication : authentication,
1549 content_proxy.length() ? content_proxy : proxy,
1556 void yf::Zoom::Frontend::prepare_elements(BackendPtr b,
1557 Odr_oid *preferredRecordSyntax,
1558 const char *element_set_name,
1559 bool &enable_pz2_retrieval,
1560 bool &enable_pz2_transform,
1561 bool &enable_record_transform,
1562 bool &assume_marc8_charset)
1564 char oid_name_str[OID_STR_MAX];
1565 const char *syntax_name = 0;
1567 if (preferredRecordSyntax &&
1568 !oid_oidcmp(preferredRecordSyntax, yaz_oid_recsyn_xml))
1570 if (element_set_name &&
1571 !strcmp(element_set_name, m_p->element_transform.c_str()))
1573 enable_pz2_retrieval = true;
1574 enable_pz2_transform = true;
1576 else if (element_set_name &&
1577 !strcmp(element_set_name, m_p->element_raw.c_str()))
1579 enable_pz2_retrieval = true;
1581 else if (m_p->record_xsp)
1583 enable_pz2_retrieval = true;
1584 enable_pz2_transform = true;
1585 enable_record_transform = true;
1589 if (enable_pz2_retrieval)
1591 std::string configured_request_syntax = b->sptr->request_syntax;
1592 if (configured_request_syntax.length())
1594 syntax_name = configured_request_syntax.c_str();
1595 const Odr_oid *syntax_oid =
1596 yaz_string_to_oid(yaz_oid_std(), CLASS_RECSYN, syntax_name);
1597 if (!oid_oidcmp(syntax_oid, yaz_oid_recsyn_usmarc)
1598 || !oid_oidcmp(syntax_oid, yaz_oid_recsyn_opac))
1599 assume_marc8_charset = true;
1602 else if (preferredRecordSyntax)
1604 yaz_oid_to_string_buf(preferredRecordSyntax, 0, oid_name_str);
1606 if (b->sptr->sru.length())
1607 syntax_name = "XML";
1609 b->set_option("preferredRecordSyntax", syntax_name);
1611 if (enable_pz2_retrieval)
1613 if (element_set_name && !strcmp(element_set_name,
1614 m_p->element_passthru.c_str()))
1618 element_set_name = 0;
1619 if (b->sptr->element_set.length())
1620 element_set_name = b->sptr->element_set.c_str();
1624 b->set_option("elementSetName", element_set_name);
1625 if (b->sptr->sru.length() && element_set_name)
1626 b->set_option("schema", element_set_name);
1629 Z_Records *yf::Zoom::Frontend::get_explain_records(
1630 mp::Package &package,
1632 Odr_int number_to_present,
1635 Odr_int *number_of_records_returned,
1638 Odr_oid *preferredRecordSyntax,
1639 const char *element_set_name)
1642 Z_Records *records = 0;
1644 if (!b->explain_doc)
1648 if (number_to_present > 10000)
1649 number_to_present = 10000;
1651 xmlNode *ptr = xmlDocGetRootElement(b->explain_doc);
1653 Z_NamePlusRecordList *npl = (Z_NamePlusRecordList *)
1654 odr_malloc(odr, sizeof(*npl));
1655 npl->records = (Z_NamePlusRecord **)
1656 odr_malloc(odr, number_to_present * sizeof(*npl->records));
1658 for (i = 0; i < number_to_present; i++)
1661 xmlNode *res = xml_node_search(ptr, &num, start + i + 1);
1664 xmlBufferPtr xml_buf = xmlBufferCreate();
1665 xmlNode *tmp_node = xmlCopyNode(res->children, 1);
1666 xmlNodeDump(xml_buf, tmp_node->doc, tmp_node, 0, 0);
1668 Z_NamePlusRecord *npr =
1669 (Z_NamePlusRecord *) odr_malloc(odr, sizeof(*npr));
1670 npr->databaseName = odr_strdup(odr, b->m_frontend_database.c_str());
1671 npr->which = Z_NamePlusRecord_databaseRecord;
1672 npr->u.databaseRecord =
1673 z_ext_record_xml(odr,
1674 (const char *) xml_buf->content, xml_buf->use);
1675 npl->records[i] = npr;
1676 xmlFreeNode(tmp_node);
1677 xmlBufferFree(xml_buf);
1679 records = (Z_Records*) odr_malloc(odr, sizeof(*records));
1680 records->which = Z_Records_DBOSD;
1681 records->u.databaseOrSurDiagnostics = npl;
1683 npl->num_records = i;
1684 *number_of_records_returned = i;
1689 Z_Records *yf::Zoom::Frontend::get_records(mp::Package &package,
1691 Odr_int number_to_present,
1694 Odr_int *number_of_records_returned,
1697 Odr_oid *preferredRecordSyntax,
1698 const char *element_set_name)
1700 *number_of_records_returned = 0;
1701 Z_Records *records = 0;
1702 bool enable_pz2_retrieval = false; // whether target profile is used
1703 bool enable_pz2_transform = false; // whether XSLT is used as well
1704 bool assume_marc8_charset = false;
1705 bool enable_record_transform = false;
1707 prepare_elements(b, preferredRecordSyntax,
1709 enable_pz2_retrieval,
1710 enable_pz2_transform,
1711 enable_record_transform,
1712 assume_marc8_charset);
1714 package.log("zoom", YLOG_LOG, "pz2_retrieval: %s . pz2_transform: %s",
1715 enable_pz2_retrieval ? "yes" : "no",
1716 enable_pz2_transform ? "yes" : "no");
1718 if (start < 0 || number_to_present <=0)
1721 if (number_to_present > 10000)
1722 number_to_present = 10000;
1724 ZOOM_record *recs = (ZOOM_record *)
1725 odr_malloc(odr, (size_t) number_to_present * sizeof(*recs));
1727 b->present(start, number_to_present, recs, error, addinfo, odr);
1732 for (i = 0; i < number_to_present; i++)
1737 { // only return records if no error and at least one record
1739 const char *xsl_parms[3];
1740 mp::wrbuf cproxy_host;
1742 if (b->enable_cproxy && b->cproxy_host.length())
1744 wrbuf_puts(cproxy_host, "\"");
1745 wrbuf_puts(cproxy_host, b->cproxy_host.c_str());
1746 wrbuf_puts(cproxy_host, "/\"");
1748 xsl_parms[0] = "cproxyhost";
1749 xsl_parms[1] = wrbuf_cstr(cproxy_host);
1757 char *odr_database = odr_strdup(odr,
1758 b->m_frontend_database.c_str());
1759 Z_NamePlusRecordList *npl = (Z_NamePlusRecordList *)
1760 odr_malloc(odr, sizeof(*npl));
1761 *number_of_records_returned = i;
1762 npl->num_records = i;
1763 npl->records = (Z_NamePlusRecord **)
1764 odr_malloc(odr, i * sizeof(*npl->records));
1765 for (i = 0; i < number_to_present; i++)
1767 Z_NamePlusRecord *npr = 0;
1768 const char *addinfo;
1770 int sur_error = ZOOM_record_error(recs[i], 0 /* msg */,
1771 &addinfo, 0 /* diagset */);
1775 log_diagnostic(package, sur_error, addinfo);
1776 npr = zget_surrogateDiagRec(odr, odr_database, sur_error,
1779 else if (enable_pz2_retrieval)
1781 char rec_type_str[100];
1782 const char *record_encoding = 0;
1784 if (b->sptr->record_encoding.length())
1785 record_encoding = b->sptr->record_encoding.c_str();
1786 else if (assume_marc8_charset)
1787 record_encoding = "marc8";
1789 strcpy(rec_type_str, b->sptr->use_turbomarc ? "txml" : "xml");
1790 if (record_encoding)
1792 strcat(rec_type_str, "; charset=");
1793 strcat(rec_type_str, record_encoding);
1796 package.log("zoom", YLOG_LOG, "Getting record of type %s",
1799 xmlChar *xmlrec_buf = 0;
1800 const char *rec_buf = ZOOM_record_get(recs[i], rec_type_str,
1802 if (!rec_buf && !npr)
1804 std::string addinfo("ZOOM_record_get failed for type ");
1806 int error = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1807 addinfo += rec_type_str;
1808 log_diagnostic(package, error, addinfo.c_str());
1809 npr = zget_surrogateDiagRec(odr, odr_database,
1810 error, addinfo.c_str());
1814 package.log_write(rec_buf, rec_len);
1815 package.log_write("\r\n", 2);
1818 if (rec_buf && b->xsp && enable_pz2_transform)
1820 xmlDoc *rec_doc = xmlParseMemory(rec_buf, rec_len);
1823 const char *addinfo = "xml parse failed for record";
1824 int error = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1825 log_diagnostic(package, error, addinfo);
1826 npr = zget_surrogateDiagRec(
1827 odr, odr_database, error, addinfo);
1831 // first stage XSLT - per target
1832 xsltStylesheetPtr xsp = b->xsp;
1833 xmlDoc *rec_res = xsltApplyStylesheet(xsp, rec_doc,
1835 // insert generated-url
1839 mp::xml::url_recipe_handle(rec_res,
1840 b->sptr->urlRecipe);
1843 xmlNode *ptr = xmlDocGetRootElement(rec_res);
1844 while (ptr && ptr->type != XML_ELEMENT_NODE)
1847 xmlNewChild(ptr, 0, BAD_CAST "metadata", 0);
1848 xmlNewProp(c, BAD_CAST "type", BAD_CAST
1850 xmlNode * t = xmlNewText(BAD_CAST res.c_str());
1854 // second stage XSLT - common
1855 if (rec_res && m_p->record_xsp &&
1856 enable_record_transform)
1858 xmlDoc *tmp_doc = rec_res;
1860 xsp = m_p->record_xsp;
1861 rec_res = xsltApplyStylesheet(xsp, tmp_doc,
1863 xmlFreeDoc(tmp_doc);
1865 // get result out of it
1868 xsltSaveResultToString(&xmlrec_buf, &rec_len,
1870 rec_buf = (const char *) xmlrec_buf;
1871 package.log_write(rec_buf, rec_len);
1873 xmlFreeDoc(rec_res);
1877 std::string addinfo;
1879 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
1881 addinfo = "xslt apply failed for "
1882 + b->sptr->transform_xsl_fname;
1883 log_diagnostic(package, error, addinfo.c_str());
1884 npr = zget_surrogateDiagRec(
1885 odr, odr_database, error, addinfo.c_str());
1887 xmlFreeDoc(rec_doc);
1894 npr = zget_surrogateDiagRec(
1896 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
1900 npr = (Z_NamePlusRecord *)
1901 odr_malloc(odr, sizeof(*npr));
1902 npr->databaseName = odr_database;
1903 npr->which = Z_NamePlusRecord_databaseRecord;
1904 npr->u.databaseRecord =
1905 z_ext_record_xml(odr, rec_buf, rec_len);
1909 xmlFree(xmlrec_buf);
1914 (Z_External *) ZOOM_record_get(recs[i], "ext", 0);
1917 npr = (Z_NamePlusRecord *) odr_malloc(odr, sizeof(*npr));
1918 npr->databaseName = odr_database;
1919 npr->which = Z_NamePlusRecord_databaseRecord;
1920 npr->u.databaseRecord = ext;
1924 npr = zget_surrogateDiagRec(
1926 YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
1927 "ZOOM_record, type ext");
1930 npl->records[i] = npr;
1932 records = (Z_Records*) odr_malloc(odr, sizeof(*records));
1933 records->which = Z_Records_DBOSD;
1934 records->u.databaseOrSurDiagnostics = npl;
1939 struct cql_node *yf::Zoom::Impl::convert_cql_fields(struct cql_node *cn,
1942 struct cql_node *r = 0;
1950 std::map<std::string,std::string>::const_iterator it;
1951 it = fieldmap.find(cn->u.st.index);
1952 if (it == fieldmap.end())
1954 if (it->second.length())
1955 cn->u.st.index = odr_strdup(odr, it->second.c_str());
1961 r = convert_cql_fields(cn->u.boolean.left, odr);
1963 r = convert_cql_fields(cn->u.boolean.right, odr);
1966 r = convert_cql_fields(cn->u.sort.search, odr);
1972 void yf::Zoom::Frontend::log_diagnostic(mp::Package &package,
1973 int error, const char *addinfo)
1975 const char *err_msg = yaz_diag_bib1_str(error);
1977 package.log("zoom", YLOG_WARN, "Diagnostic %d %s: %s",
1978 error, err_msg, addinfo);
1980 package.log("zoom", YLOG_WARN, "Diagnostic %d %s:",
1984 yf::Zoom::BackendPtr yf::Zoom::Frontend::explain_search(mp::Package &package,
1985 std::string &database,
1989 std::string torus_url,
1990 std::string &torus_db,
1995 BackendPtr b(new Backend);
1997 b->m_frontend_database = database;
1998 b->enable_explain = true;
2000 Z_GDU *gdu = package.request().get();
2001 Z_APDU *apdu_req = gdu->u.z3950;
2002 Z_SearchRequest *sr = apdu_req->u.searchRequest;
2003 Z_Query *query = sr->query;
2005 if (!m_p->explain_xsp)
2007 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
2009 odr_strdup(odr, "IR-Explain---1 unsupported. "
2010 "Torus explain_xsl not defined");
2013 else if (query->which == Z_Query_type_104 &&
2014 query->u.type_104->which == Z_External_CQL)
2016 std::string torus_query(query->u.type_104->u.cql);
2017 xmlDoc *doc = mp::get_searchable(package, torus_url, "",
2020 if (m_p->explain_xsp)
2022 xmlDoc *rec_res = xsltApplyStylesheet(m_p->explain_xsp, doc, 0);
2029 *error = YAZ_BIB1_UNSPECIFIED_ERROR;
2030 *addinfo = odr_strdup(odr, "Torus server unavailable or "
2031 "incorrectly configured");
2035 xmlNode *ptr = xmlDocGetRootElement(doc);
2038 xml_node_search(ptr, &hits, 0);
2040 Z_APDU *apdu_res = odr.create_searchResponse(apdu_req, 0, 0);
2041 apdu_res->u.searchResponse->resultCount = odr_intdup(odr, hits);
2042 package.response() = apdu_res;
2046 xmlFreeDoc(b->explain_doc);
2047 b->explain_doc = doc;
2052 *error = YAZ_BIB1_QUERY_TYPE_UNSUPP;
2053 *addinfo = odr_strdup(odr, "IR-Explain---1 only supports CQL");
2058 static bool wait_conn(COMSTACK cs, int secs)
2060 struct yaz_poll_fd pfd;
2062 yaz_poll_add(pfd.input_mask, yaz_poll_except);
2063 if (cs->io_pending && CS_WANT_WRITE)
2064 yaz_poll_add(pfd.input_mask, yaz_poll_write);
2065 if (cs->io_pending & CS_WANT_READ)
2066 yaz_poll_add(pfd.input_mask, yaz_poll_read);
2068 pfd.fd = cs_fileno(cs);
2069 pfd.client_data = 0;
2071 int ret = yaz_poll(&pfd, 1, secs, 0);
2075 bool yf::Zoom::Impl::check_proxy(const char *proxy)
2078 const char *uri = "http://localhost/";
2081 bool outcome = false;
2082 conn = cs_create_host_proxy(uri, 0, &add, proxy);
2087 Z_GDU *gdu = z_get_HTTP_Request_uri(odr, uri, 0, 1);
2088 gdu->u.HTTP_Request->method = odr_strdup(odr, "GET");
2090 if (z_GDU(odr, &gdu, 0, 0))
2093 char *buf = odr_getbuf(odr, &len, 0);
2095 int ret = cs_connect(conn, add);
2096 if (ret > 0 || (ret == 0 && wait_conn(conn, 1)))
2100 ret = cs_put(conn, buf, len);
2103 if (!wait_conn(conn, proxy_timeout))
2114 bool yf::Zoom::Frontend::retry(mp::Package &package,
2117 int &error, char **addinfo,
2118 int &proxy_step, int &same_retries,
2121 if (b && b->m_proxy.length() && !m_p->check_proxy(b->m_proxy.c_str()))
2123 log_diagnostic(package, error, *addinfo);
2124 package.log("zoom", YLOG_LOG, "proxy %s fails", b->m_proxy.c_str());
2126 if (proxy_step) // there is a failover
2129 package.log("zoom", YLOG_WARN, "search failed: trying next proxy");
2132 error = YAZ_BIB1_PROXY_FAILURE;
2133 *addinfo = odr_strdup(odr, b->m_proxy.c_str());
2135 else if (same_retries == 0 && proxy_retries == 0)
2137 log_diagnostic(package, error, *addinfo);
2139 package.log("zoom", YLOG_WARN, "search failed: retry");
2147 void yf::Zoom::Frontend::handle_search(mp::Package &package)
2149 Z_GDU *gdu = package.request().get();
2150 Z_APDU *apdu_req = gdu->u.z3950;
2151 Z_APDU *apdu_res = 0;
2153 Z_SearchRequest *sr = apdu_req->u.searchRequest;
2154 if (sr->num_databaseNames != 1)
2156 int error = YAZ_BIB1_TOO_MANY_DATABASES_SPECIFIED;
2157 log_diagnostic(package, error, 0);
2158 apdu_res = odr.create_searchResponse(apdu_req, error, 0);
2159 package.response() = apdu_res;
2163 int same_retries = 0;
2164 int proxy_retries = 0;
2170 std::string db(sr->databaseNames[0]);
2172 BackendPtr b = get_backend_from_databases(package, db, &error,
2173 &addinfo, odr, &proxy_step);
2176 if (retry(package, odr, b, error, &addinfo, proxy_step,
2177 same_retries, proxy_retries))
2182 log_diagnostic(package, error, addinfo);
2183 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2184 package.response() = apdu_res;
2187 if (!b || b->enable_explain)
2190 b->set_option("setname", "default");
2192 bool enable_pz2_retrieval = false;
2193 bool enable_pz2_transform = false;
2194 bool enable_record_transform = false;
2195 bool assume_marc8_charset = false;
2196 prepare_elements(b, sr->preferredRecordSyntax, 0 /*element_set_name */,
2197 enable_pz2_retrieval,
2198 enable_pz2_transform,
2199 enable_record_transform,
2200 assume_marc8_charset);
2203 Z_Query *query = sr->query;
2204 mp::wrbuf ccl_wrbuf;
2205 mp::wrbuf pqf_wrbuf;
2206 std::string sortkeys;
2208 if (query->which == Z_Query_type_1 || query->which == Z_Query_type_101)
2211 yaz_rpnquery_to_wrbuf(pqf_wrbuf, query->u.type_1);
2213 else if (query->which == Z_Query_type_2)
2216 wrbuf_write(ccl_wrbuf, (const char *) query->u.type_2->buf,
2217 query->u.type_2->len);
2219 else if (query->which == Z_Query_type_104 &&
2220 query->u.type_104->which == Z_External_CQL)
2223 const char *cql = query->u.type_104->u.cql;
2224 CQL_parser cp = cql_parser_create();
2225 int r = cql_parser_string(cp, cql);
2226 package.log("zoom", YLOG_LOG, "CQL: %s", cql);
2229 cql_parser_destroy(cp);
2230 error = YAZ_BIB1_MALFORMED_QUERY;
2231 const char *addinfo = "CQL syntax error";
2232 log_diagnostic(package, error, addinfo);
2234 odr.create_searchResponse(apdu_req, error, addinfo);
2235 package.response() = apdu_res;
2238 struct cql_node *cn = cql_parser_result(cp);
2239 struct cql_node *cn_error = m_p->convert_cql_fields(cn, odr);
2242 // hopefully we are getting a ptr to a index+relation+term node
2243 error = YAZ_BIB1_UNSUPP_USE_ATTRIBUTE;
2245 if (cn_error->which == CQL_NODE_ST)
2246 addinfo = cn_error->u.st.index;
2248 log_diagnostic(package, error, addinfo);
2249 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2250 package.response() = apdu_res;
2251 cql_parser_destroy(cp);
2254 r = cql_to_ccl(cn, wrbuf_vp_puts, ccl_wrbuf);
2257 error = YAZ_BIB1_MALFORMED_QUERY;
2258 const char *addinfo = "CQL to CCL conversion error";
2260 log_diagnostic(package, error, addinfo);
2261 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2262 package.response() = apdu_res;
2263 cql_parser_destroy(cp);
2267 mp::wrbuf sru_sortkeys_wrbuf;
2268 if (cql_sortby_to_sortkeys(cn, wrbuf_vp_puts, sru_sortkeys_wrbuf))
2270 error = YAZ_BIB1_ILLEGAL_SORT_RELATION;
2271 const char *addinfo = "CQL to CCL sortby conversion";
2273 log_diagnostic(package, error, addinfo);
2274 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2275 package.response() = apdu_res;
2276 cql_parser_destroy(cp);
2279 mp::wrbuf sort_spec_wrbuf;
2280 yaz_srw_sortkeys_to_sort_spec(wrbuf_cstr(sru_sortkeys_wrbuf),
2282 yaz_tok_cfg_t tc = yaz_tok_cfg_create();
2283 yaz_tok_parse_t tp =
2284 yaz_tok_parse_buf(tc, wrbuf_cstr(sort_spec_wrbuf));
2285 yaz_tok_cfg_destroy(tc);
2287 /* go through sortspec and map fields */
2288 int token = yaz_tok_move(tp);
2289 while (token != YAZ_TOK_EOF)
2291 if (token == YAZ_TOK_STRING)
2293 const char *field = yaz_tok_parse_string(tp);
2294 std::map<std::string,std::string>::iterator it;
2295 it = b->sptr->sortmap.find(field);
2296 if (it != b->sptr->sortmap.end())
2297 sortkeys += it->second;
2302 token = yaz_tok_move(tp);
2303 if (token == YAZ_TOK_STRING)
2305 sortkeys += yaz_tok_parse_string(tp);
2307 if (token != YAZ_TOK_EOF)
2310 token = yaz_tok_move(tp);
2313 yaz_tok_parse_destroy(tp);
2314 cql_parser_destroy(cp);
2318 error = YAZ_BIB1_QUERY_TYPE_UNSUPP;
2319 const char *addinfo = 0;
2320 log_diagnostic(package, error, addinfo);
2321 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2322 package.response() = apdu_res;
2326 if (ccl_wrbuf.len())
2329 assert(pqf_wrbuf.len() == 0);
2331 struct ccl_rpn_node *cn;
2332 package.log("zoom", YLOG_LOG, "CCL: %s", wrbuf_cstr(ccl_wrbuf));
2333 cn = ccl_find_str(b->sptr->ccl_bibset, wrbuf_cstr(ccl_wrbuf),
2337 char *addinfo = odr_strdup_null(odr, ccl_err_msg(cerror));
2338 error = YAZ_BIB1_MALFORMED_QUERY;
2342 case CCL_ERR_UNKNOWN_QUAL:
2343 case CCL_ERR_TRUNC_NOT_LEFT:
2344 case CCL_ERR_TRUNC_NOT_RIGHT:
2345 case CCL_ERR_TRUNC_NOT_BOTH:
2346 #ifdef CCL_ERR_TRUNC_NOT_EMBED
2347 case CCL_ERR_TRUNC_NOT_EMBED:
2349 #ifdef CCL_ERR_TRUNC_NOT_SINGLE
2350 case CCL_ERR_TRUNC_NOT_SINGLE:
2352 error = YAZ_BIB1_UNSUPP_SEARCH;
2355 log_diagnostic(package, error, addinfo);
2356 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2357 package.response() = apdu_res;
2360 ccl_pquery(pqf_wrbuf, cn);
2361 package.log("zoom", YLOG_LOG, "RPN: %s", wrbuf_cstr(pqf_wrbuf));
2365 assert(pqf_wrbuf.len());
2367 ZOOM_query q = ZOOM_query_create();
2368 ZOOM_query_sortby2(q, b->sptr->sortStrategy.c_str(), sortkeys.c_str());
2370 Z_FacetList *fl = 0;
2372 // Facets for request.. And later for reponse
2374 fl = yaz_oi_get_facetlist(&sr->otherInfo);
2376 fl = yaz_oi_get_facetlist(&sr->additionalSearchInfo);
2378 if (b->get_option("sru"))
2382 zquery = p_query_rpn(odr, wrbuf_cstr(pqf_wrbuf));
2385 if (!strcmp(b->get_option("sru"), "solr"))
2387 solr_transform_t cqlt = solr_transform_create();
2389 status = solr_transform_rpn2solr_wrbuf(cqlt, wrb, zquery);
2391 solr_transform_close(cqlt);
2395 status = cql_transform_rpn2cql_wrbuf(b->cqlt, wrb, zquery);
2399 ZOOM_query_cql(q, wrbuf_cstr(wrb));
2400 package.log("zoom", YLOG_LOG, "CQL: %s", wrbuf_cstr(wrb));
2401 b->search(q, &hits, &error, &addinfo, &fl, odr);
2403 ZOOM_query_destroy(q);
2407 error = YAZ_BIB1_MALFORMED_QUERY;
2408 const char *addinfo = "can not convert from RPN to CQL/Solr";
2409 log_diagnostic(package, error, addinfo);
2410 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2411 package.response() = apdu_res;
2417 ZOOM_query_prefix(q, wrbuf_cstr(pqf_wrbuf));
2418 package.log("zoom", YLOG_LOG, "search PQF: %s", wrbuf_cstr(pqf_wrbuf));
2419 b->search(q, &hits, &error, &addinfo, &fl, odr);
2420 ZOOM_query_destroy(q);
2425 if (retry(package, odr, b, error, &addinfo, proxy_step,
2426 same_retries, proxy_retries))
2430 const char *element_set_name = 0;
2431 Odr_int number_to_present = 0;
2433 mp::util::piggyback_sr(sr, hits, number_to_present, &element_set_name);
2435 Odr_int number_of_records_returned = 0;
2436 Z_Records *records = get_records(
2438 0, number_to_present, &error, &addinfo,
2439 &number_of_records_returned, odr, b, sr->preferredRecordSyntax,
2442 log_diagnostic(package, error, addinfo);
2443 apdu_res = odr.create_searchResponse(apdu_req, error, addinfo);
2446 apdu_res->u.searchResponse->records = records;
2447 apdu_res->u.searchResponse->numberOfRecordsReturned =
2448 odr_intdup(odr, number_of_records_returned);
2450 apdu_res->u.searchResponse->resultCount = odr_intdup(odr, hits);
2452 yaz_oi_set_facetlist(&apdu_res->u.searchResponse->additionalSearchInfo,
2454 package.response() = apdu_res;
2457 void yf::Zoom::Frontend::handle_present(mp::Package &package)
2459 Z_GDU *gdu = package.request().get();
2460 Z_APDU *apdu_req = gdu->u.z3950;
2461 Z_APDU *apdu_res = 0;
2462 Z_PresentRequest *pr = apdu_req->u.presentRequest;
2467 package.response() = odr.create_presentResponse(
2468 apdu_req, YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST, 0);
2471 const char *element_set_name = 0;
2472 Z_RecordComposition *comp = pr->recordComposition;
2473 if (comp && comp->which != Z_RecordComp_simple)
2475 package.response() = odr.create_presentResponse(
2477 YAZ_BIB1_PRESENT_COMP_SPEC_PARAMETER_UNSUPP, 0);
2480 if (comp && comp->u.simple->which == Z_ElementSetNames_generic)
2481 element_set_name = comp->u.simple->u.generic;
2482 Odr_int number_of_records_returned = 0;
2486 if (m_backend->enable_explain)
2488 Z_Records *records =
2489 get_explain_records(
2491 *pr->resultSetStartPoint - 1, *pr->numberOfRecordsRequested,
2492 &error, &addinfo, &number_of_records_returned, odr, m_backend,
2493 pr->preferredRecordSyntax, element_set_name);
2495 apdu_res = odr.create_presentResponse(apdu_req, error, addinfo);
2498 apdu_res->u.presentResponse->records = records;
2499 apdu_res->u.presentResponse->numberOfRecordsReturned =
2500 odr_intdup(odr, number_of_records_returned);
2502 package.response() = apdu_res;
2506 Z_Records *records =
2507 get_records(package,
2508 *pr->resultSetStartPoint - 1, *pr->numberOfRecordsRequested,
2509 &error, &addinfo, &number_of_records_returned, odr, m_backend,
2510 pr->preferredRecordSyntax, element_set_name);
2512 apdu_res = odr.create_presentResponse(apdu_req, error, addinfo);
2515 apdu_res->u.presentResponse->records = records;
2516 apdu_res->u.presentResponse->numberOfRecordsReturned =
2517 odr_intdup(odr, number_of_records_returned);
2519 package.response() = apdu_res;
2523 void yf::Zoom::Frontend::handle_package(mp::Package &package)
2525 Z_GDU *gdu = package.request().get();
2528 else if (gdu->which == Z_GDU_Z3950)
2530 Z_APDU *apdu_req = gdu->u.z3950;
2533 wrbuf_rewind(m_backend->m_apdu_wrbuf);
2534 if (apdu_req->which == Z_APDU_initRequest)
2537 package.response() = odr.create_close(
2539 Z_Close_protocolError,
2542 else if (apdu_req->which == Z_APDU_searchRequest)
2544 handle_search(package);
2546 else if (apdu_req->which == Z_APDU_presentRequest)
2548 handle_present(package);
2553 package.response() = odr.create_close(
2555 Z_Close_protocolError,
2556 "zoom filter cannot handle this APDU");
2557 package.session().close();
2561 WRBUF w = m_backend->m_apdu_wrbuf;
2562 package.log_write(wrbuf_buf(w), wrbuf_len(w));
2567 package.session().close();
2571 std::string escape_cql_term(std::string inp)
2574 size_t l = inp.length();
2576 for (i = 0; i < l; i++)
2578 if (strchr("*?^\"", inp[i]))
2585 void yf::Zoom::Frontend::auth(mp::Package &package, Z_InitRequest *req,
2586 int *error, char **addinfo, ODR odr)
2588 if (m_p->torus_auth_url.length() == 0)
2592 std::string password;
2593 if (req->idAuthentication)
2595 Z_IdAuthentication *auth = req->idAuthentication;
2596 switch (auth->which)
2598 case Z_IdAuthentication_open:
2601 const char *cp = strchr(auth->u.open, '/');
2604 user.assign(auth->u.open, cp - auth->u.open);
2605 password.assign(cp + 1);
2609 case Z_IdAuthentication_idPass:
2610 if (auth->u.idPass->userId)
2611 user.assign(auth->u.idPass->userId);
2612 if (auth->u.idPass->password)
2613 password.assign(auth->u.idPass->password);
2618 Z_OtherInformation **oi = &req->otherInfo;
2620 yaz_oi_get_string_oid(oi, yaz_oid_userinfo_client_ip, 1, 0);
2622 ip = package.origin().get_address().c_str();
2624 yaz_log(YLOG_LOG, "IP=%s", ip);
2626 std::string torus_query;
2629 if (user.length() && password.length())
2631 torus_query = "userName==\"" + escape_cql_term(user) +
2632 "\" and password==\"" + escape_cql_term(password) + "\"";
2633 failure_code = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
2637 torus_query = "ip encloses/net.ipaddress \"";
2638 torus_query += escape_cql_term(std::string(ip));
2639 torus_query += "\"";
2640 failure_code = YAZ_BIB1_INIT_AC_BLOCKED_NETWORK_ADDRESS;
2643 std::string dummy_db;
2644 std::string dummy_realm;
2645 xmlDoc *doc = mp::get_searchable(package, m_p->torus_auth_url, dummy_db,
2646 torus_query, dummy_realm, m_p->proxy);
2649 // something fundamental broken in lookup.
2650 *error = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
2651 *addinfo = odr_strdup(odr, "zoom: torus server unavailable or "
2652 "incorrectly configured.");
2655 const xmlNode *ptr = xmlDocGetRootElement(doc);
2656 if (ptr && ptr->type == XML_ELEMENT_NODE)
2658 if (strcmp((const char *) ptr->name, "records") == 0)
2660 ptr = ptr->children;
2661 while (ptr && ptr->type != XML_ELEMENT_NODE)
2664 if (ptr && strcmp((const char *) ptr->name, "record") == 0)
2666 ptr = ptr->children;
2667 while (ptr && ptr->type != XML_ELEMENT_NODE)
2670 if (ptr && strcmp((const char *) ptr->name, "layer") == 0)
2672 ptr = ptr->children;
2673 while (ptr && ptr->type != XML_ELEMENT_NODE)
2678 if (ptr && ptr->type == XML_ELEMENT_NODE &&
2679 !strcmp((const char *) ptr->name, "identityId"))
2686 *error = failure_code;
2689 session_realm = mp::xml::get_text(ptr);
2692 void yf::Zoom::Impl::process(mp::Package &package)
2694 FrontendPtr f = get_frontend(package);
2695 Z_GDU *gdu = package.request().get();
2697 if (f->m_is_virtual)
2699 f->handle_package(package);
2701 else if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which ==
2704 Z_InitRequest *req = gdu->u.z3950->u.initRequest;
2705 f->m_init_gdu = gdu;
2708 Z_APDU *apdu = odr.create_initResponse(gdu->u.z3950, 0, 0);
2709 Z_InitResponse *resp = apdu->u.initResponse;
2712 static const int masks[] = {
2717 for (i = 0; masks[i] != -1; i++)
2718 if (ODR_MASK_GET(req->options, masks[i]))
2719 ODR_MASK_SET(resp->options, masks[i]);
2721 static const int versions[] = {
2722 Z_ProtocolVersion_1,
2723 Z_ProtocolVersion_2,
2724 Z_ProtocolVersion_3,
2727 for (i = 0; versions[i] != -1; i++)
2728 if (ODR_MASK_GET(req->protocolVersion, versions[i]))
2729 ODR_MASK_SET(resp->protocolVersion, versions[i]);
2733 *resp->preferredMessageSize = *req->preferredMessageSize;
2734 *resp->maximumRecordSize = *req->maximumRecordSize;
2738 f->auth(package, req, &error, &addinfo, odr);
2741 resp->userInformationField =
2742 zget_init_diagnostics(odr, error, addinfo);
2744 package.session().close();
2747 f->m_is_virtual = true;
2748 package.response() = apdu;
2753 release_frontend(package);
2757 static mp::filter::Base* filter_creator()
2759 return new mp::filter::Zoom;
2763 struct metaproxy_1_filter_struct metaproxy_1_filter_zoom = {
2774 * c-file-style: "Stroustrup"
2775 * indent-tabs-mode: nil
2777 * vim: shiftwidth=4 tabstop=8 expandtab