1 /* $Id: yaz-proxy.cpp,v 1.50 2006-04-06 12:04:20 adam Exp $
2 Copyright (c) 1998-2006, Index Data.
4 This file is part of the yazproxy.
6 YAZ proxy is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
11 YAZ proxy is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with YAZ proxy; see the file LICENSE. If not, write to the
18 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 #define HAVE_SYS_STAT_H 1
24 #define HAVE_SYS_TYPES_H 1
34 #include <sys/types.h>
46 #include <yaz/marcdisp.h>
47 #include <yaz/yaz-iconv.h>
49 #include <yaz/diagbib1.h>
51 #include <yaz/pquery.h>
52 #include <yaz/otherinfo.h>
53 #include <yaz/charneg.h>
54 #include "msg-thread.h"
56 using namespace yazpp_1;
59 #define strncasecmp _strnicmp
62 #define USE_AUTH_MSG 1
65 class YAZ_EXPORT Auth_Msg : public IMsg_Thread {
68 IMsg_Thread *handle();
80 m_nmem = nmem_create();
88 IMsg_Thread *Auth_Msg::handle()
90 ODR decode = odr_createmem(ODR_DECODE);
93 odr_setbuf(decode, m_apdu_buf, m_apdu_len, 0);
94 int r = z_APDU(decode, &apdu, 0, 0);
97 yaz_log(YLOG_WARN, "decode failed in Auth_Msg::handle");
101 m_ret = m_proxy->handle_authentication(apdu);
107 void Auth_Msg::result()
109 if (m_proxy->dec_ref(false))
111 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
115 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
117 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
119 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
120 m_proxy->result_authentication(apdu, m_ret);
127 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
129 if (apdu == 0 || ret == 0)
131 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
132 *apdu_reject->u.initResponse->result = 0;
133 send_to_client(apdu_reject);
138 if (apdu->which == Z_APDU_initRequest)
140 Yaz_ProxyConfig *cfg = check_reconfigure();
142 cfg->target_authentication(m_default_target, odr_encode(),
143 apdu->u.initRequest);
145 handle_incoming_Z_PDU_2(apdu);
149 static const char *apdu_name(Z_APDU *apdu)
153 case Z_APDU_initRequest:
154 return "initRequest";
155 case Z_APDU_initResponse:
156 return "initResponse";
157 case Z_APDU_searchRequest:
158 return "searchRequest";
159 case Z_APDU_searchResponse:
160 return "searchResponse";
161 case Z_APDU_presentRequest:
162 return "presentRequest";
163 case Z_APDU_presentResponse:
164 return "presentResponse";
165 case Z_APDU_deleteResultSetRequest:
166 return "deleteResultSetRequest";
167 case Z_APDU_deleteResultSetResponse:
168 return "deleteResultSetResponse";
169 case Z_APDU_scanRequest:
170 return "scanRequest";
171 case Z_APDU_scanResponse:
172 return "scanResponse";
173 case Z_APDU_sortRequest:
174 return "sortRequest";
175 case Z_APDU_sortResponse:
176 return "sortResponse";
177 case Z_APDU_extendedServicesRequest:
178 return "extendedServicesRequest";
179 case Z_APDU_extendedServicesResponse:
180 return "extendedServicesResponse";
187 static const char *gdu_name(Z_GDU *gdu)
192 return apdu_name(gdu->u.z3950);
193 case Z_GDU_HTTP_Request:
194 return "HTTP Request";
195 case Z_GDU_HTTP_Response:
196 return "HTTP Response";
198 return "Unknown request/response";
201 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
202 ISocketObservable *the_socket_observable,
205 Z_Assoc(the_PDU_Observable),
206 m_bw_stat(60), m_pdu_stat(60), m_search_stat(60)
208 m_PDU_Observable = the_PDU_Observable;
209 m_socket_observable = the_socket_observable;
214 m_keepalive_limit_bw = 500000;
215 m_keepalive_limit_pdu = 1000;
217 m_default_target = 0;
218 m_proxy_negotiation_charset = 0;
219 m_proxy_negotiation_lang = 0;
220 m_proxy_negotiation_default_charset = 0;
221 m_charset_converter = new Yaz_CharsetConverter;
225 m_client_idletime = 600;
226 m_target_idletime = 600;
227 m_optimize = xstrdup ("1");
228 strcpy(m_session_str, "0 ");
237 m_timeout_mode = timeout_normal;
239 m_max_record_retrieve = 0;
243 m_flag_invalid_session = 0;
245 m_referenceId_mem = nmem_create();
247 m_marcxml_mode = none;
248 m_stylesheet_xsp = 0;
249 m_stylesheet_nprl = 0;
250 m_stylesheet_apdu = 0;
251 m_s2z_stylesheet = 0;
255 m_backend_charset = 0;
257 m_initRequest_apdu = 0;
258 m_initRequest_mem = 0;
259 m_initRequest_preferredMessageSize = 0;
260 m_initRequest_maximumRecordSize = 0;
261 m_initRequest_options = 0;
262 m_initRequest_version = 0;
263 m_initRequest_oi_negotiation_charsets = 0;
264 m_initRequest_oi_negotiation_num_charsets = 0;
265 m_initRequest_oi_negotiation_langs = 0;
266 m_initRequest_oi_negotiation_num_langs = 0;
267 m_initRequest_oi_negotiation_selected = 0;
268 m_apdu_invalid_session = 0;
269 m_mem_invalid_session = 0;
271 m_s2z_odr_search = 0;
273 m_s2z_search_apdu = 0;
274 m_s2z_present_apdu = 0;
275 m_http_keepalive = 0;
278 m_s2z_packing = Z_SRW_recordPacking_string;
279 #if HAVE_GETTIMEOFDAY
280 m_time_tv = xmalloc(sizeof(struct timeval));
281 struct timeval *tv = (struct timeval *) m_time_tv;
287 m_usemarcon_ini_stage1 = 0;
288 m_usemarcon_ini_stage2 = 0;
289 m_usemarcon = new Yaz_usemarcon();
294 m_main_ptr_dec = false;
296 m_initial_reduce = 0;
299 void Yaz_Proxy::inc_ref()
304 Yaz_Proxy::~Yaz_Proxy()
306 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
307 m_bytes_sent, m_bytes_recv);
308 nmem_destroy(m_initRequest_mem);
309 nmem_destroy(m_mem_invalid_session);
310 nmem_destroy(m_referenceId_mem);
312 xfree(m_proxyTarget);
313 xfree(m_default_target);
314 xfree(m_proxy_negotiation_charset);
315 xfree(m_proxy_negotiation_lang);
316 xfree(m_proxy_negotiation_default_charset);
317 delete m_charset_converter;
321 if (m_stylesheet_xsp)
322 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
328 xfree (m_backend_type);
329 xfree (m_backend_charset);
330 xfree (m_usemarcon_ini_stage1);
331 xfree (m_usemarcon_ini_stage2);
334 odr_destroy(m_s2z_odr_init);
335 if (m_s2z_odr_search)
336 odr_destroy(m_s2z_odr_search);
344 void Yaz_Proxy::set_debug_mode(int mode)
349 int Yaz_Proxy::set_config(const char *config)
352 m_config = new Yaz_ProxyConfig();
353 xfree(m_config_fname);
354 m_config_fname = xstrdup(config);
355 int r = m_config->read_xml(config);
357 m_config->get_generic_info(&m_log_mask, &m_max_clients,
358 &m_connect_max, &m_limit_connect);
362 void Yaz_Proxy::set_default_target(const char *target)
364 xfree (m_default_target);
365 m_default_target = 0;
367 m_default_target = (char *) xstrdup (target);
370 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
371 const char *default_charset)
373 yaz_log(YLOG_LOG, "%sSet the proxy negotiation: charset to '%s', "
374 "default charset to '%s', language to '%s'", m_session_str,
375 charset?charset:"none",
376 default_charset?default_charset:"none",
378 xfree (m_proxy_negotiation_charset);
379 xfree (m_proxy_negotiation_lang);
380 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
382 m_proxy_negotiation_charset = (char *) xstrdup (charset);
384 m_proxy_negotiation_lang = (char *) xstrdup (lang);
386 m_proxy_negotiation_default_charset =
387 (char *) xstrdup (default_charset);
390 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
393 return m_parent->check_reconfigure();
395 Yaz_ProxyConfig *cfg = m_config;
398 yaz_log(YLOG_LOG, "reconfigure");
400 if (m_config_fname && cfg)
402 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
403 int r = cfg->read_xml(m_config_fname);
405 yaz_log(YLOG_WARN, "reconfigure failed");
409 cfg->get_generic_info(&m_log_mask, &m_max_clients,
410 &m_connect_max, &m_limit_connect);
414 yaz_log(YLOG_LOG, "reconfigure");
420 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
421 *the_PDU_Observable, int fd)
425 char session_str[200];
426 const char *peername = the_PDU_Observable->getpeername();
427 if (m_log_mask & PROXY_LOG_IP_CLIENT)
428 sprintf(session_str, "%ld:%d %s 0 ",
429 (long) time(0), m_session_no, peername);
431 sprintf(session_str, "%ld:%d 0 ",
432 (long) time(0), m_session_no);
435 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
437 m_connect.cleanup(false);
438 m_connect.add_connect(peername);
440 int connect_total = m_connect.get_total(peername);
441 int connect_max = m_connect_max;
442 if (connect_max && connect_total > connect_max)
444 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
445 session_str, connect_total, connect_max);
448 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", session_str,
451 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
452 m_socket_observable, this);
455 new_proxy->m_initial_reduce = connect_total / m_limit_connect;
457 new_proxy->m_config = 0;
458 new_proxy->m_config_fname = 0;
459 new_proxy->timeout(m_client_idletime);
460 new_proxy->m_target_idletime = m_target_idletime;
461 new_proxy->set_default_target(m_default_target);
462 new_proxy->m_max_clients = m_max_clients;
463 new_proxy->m_log_mask = m_log_mask;
464 new_proxy->set_APDU_log(get_APDU_log());
465 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
466 new_proxy->set_APDU_yazlog(1);
468 new_proxy->set_APDU_yazlog(0);
469 strcpy(new_proxy->m_session_str, session_str);
470 new_proxy->m_peername = xstrdup(peername);
471 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
472 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
473 // create thread object the first time we get an incoming connection
475 m_my_thread = new Msg_Thread(m_socket_observable, 1);
476 new_proxy->m_my_thread = m_my_thread;
480 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
483 Z_OtherInformationUnit *oi;
485 ent.proto = PROTO_Z3950;
486 ent.oclass = CLASS_USERINFO;
487 ent.value = (oid_value) VAL_COOKIE;
488 assert (oid_ent_to_oid (&ent, oid));
490 if (oid_ent_to_oid (&ent, oid) &&
491 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
492 oi->which == Z_OtherInfo_characterInfo)
493 return oi->information.characterInfo;
496 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
499 Z_OtherInformationUnit *oi;
501 ent.proto = PROTO_Z3950;
502 ent.oclass = CLASS_USERINFO;
503 ent.value = (oid_value) VAL_PROXY;
504 if (oid_ent_to_oid (&ent, oid) &&
505 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
506 oi->which == Z_OtherInfo_characterInfo)
507 return oi->information.characterInfo;
510 const char *Yaz_Proxy::load_balance(const char **url)
512 int zurl_in_use[MAX_ZURL_PLEX];
513 int zurl_in_spare[MAX_ZURL_PLEX];
517 for (i = 0; i<MAX_ZURL_PLEX; i++)
520 zurl_in_spare[i] = 0;
522 for (c = m_parent->m_clientPool; c; c = c->m_next)
524 for (i = 0; url[i]; i++)
525 if (!strcmp(url[i], c->get_hostname()))
528 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
532 int min_use = 100000;
533 int spare_for_min = 0;
535 const char *ret_min = 0;
536 const char *ret_spare = 0;
537 for (i = 0; url[i]; i++)
539 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
540 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
541 if (min_use > zurl_in_use[i])
544 min_use = zurl_in_use[i];
545 spare_for_min = zurl_in_spare[i];
547 if (max_spare < zurl_in_spare[i])
550 max_spare = zurl_in_spare[i];
556 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
557 const char *proxy_host)
560 Yaz_Proxy *parent = m_parent;
561 Yaz_ProxyClient *c = m_client;
565 const char *url[MAX_ZURL_PLEX];
566 Yaz_ProxyConfig *cfg = check_reconfigure();
569 if (parent && parent->m_debug_mode)
571 // only to be enabled for debugging...
572 if (!strcmp(proxy_host, "stop"))
575 xfree(m_default_target);
576 m_default_target = xstrdup(proxy_host);
578 proxy_host = m_default_target;
579 int client_idletime = -1;
580 const char *cql2rpn_fname = 0;
581 const char *negotiation_charset = 0;
582 const char *negotiation_lang = 0;
583 const char *query_charset = 0;
584 const char *default_client_query_charset = 0;
585 url[0] = m_default_target;
590 cfg->get_target_info(proxy_host, url, &m_bw_max,
591 &m_pdu_max, &m_max_record_retrieve,
593 &m_target_idletime, &client_idletime,
594 &parent->m_max_clients,
595 &m_keepalive_limit_bw,
596 &m_keepalive_limit_pdu,
599 &negotiation_charset,
602 &default_client_query_charset);
604 if (client_idletime != -1)
606 m_client_idletime = client_idletime;
607 timeout(m_client_idletime);
610 m_cql2rpn.set_pqf_file(cql2rpn_fname);
611 if (negotiation_charset || negotiation_lang || default_client_query_charset)
613 set_proxy_negotiation(negotiation_charset,
614 negotiation_lang, default_client_query_charset);
616 m_charset_converter->set_target_query_charset(query_charset);
619 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
622 // we don't handle multiplexing for cookie session, so we just
623 // pick the first one in this case (anonymous users will be able
624 // to use any backend)
625 if (cookie && *cookie)
626 m_proxyTarget = (char*) xstrdup(url[0]);
628 m_proxyTarget = (char*) xstrdup(load_balance(url));
630 if (cookie && *cookie)
631 { // search in sessions with a cookie
632 for (c = parent->m_clientPool; c; c = c->m_next)
635 assert (*c->m_prev == c);
636 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
637 !strcmp(m_proxyTarget, c->get_hostname()))
640 // The following handles "cancel"
641 // If connection is busy (waiting for PDU) and
642 // we have an initRequest we can safely do re-open
643 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
645 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
652 c->m_last_resultCount = 0;
653 c->m_sr_transform = 0;
655 c->m_resultSetStartPoint = 0;
656 c->m_target_idletime = m_target_idletime;
657 if (c->client(m_proxyTarget))
664 c->m_seqno = parent->m_seqno;
665 if (c->m_server && c->m_server != this)
666 c->m_server->m_client = 0;
669 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
674 else if (!c && apdu->which == Z_APDU_initRequest )
676 // anonymous sessions without cookie.
677 // if authentication is set it is NOT anonymous se we can't share them.
678 // If charset and lang negotiation is use it is NOT anonymous session too.
679 for (c = parent->m_clientPool; c; c = c->m_next)
682 assert(*c->m_prev == c);
683 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
684 && c->compare_idAuthentication(apdu)
685 && c->compare_charset(apdu)
686 && !strcmp(m_proxyTarget, c->get_hostname()))
689 yaz_log (YLOG_LOG, "%sREUSE %d %s",
690 m_session_str, parent->m_seqno, c->get_hostname());
692 c->m_seqno = parent->m_seqno;
693 assert(c->m_server == 0);
696 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
697 c->set_APDU_yazlog(1);
699 c->set_APDU_yazlog(0);
711 if (apdu->which != Z_APDU_initRequest)
713 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
716 // go through list of clients - and find the lowest/oldest one.
717 Yaz_ProxyClient *c_min = 0;
719 int no_of_clients = 0;
720 if (parent->m_clientPool)
721 yaz_log (YLOG_DEBUG, "Existing sessions");
722 for (c = parent->m_clientPool; c; c = c->m_next)
724 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
725 c->m_waiting, c->get_hostname(),
726 c->m_cookie ? c->m_cookie : "");
728 if (min_seq < 0 || c->m_seqno < min_seq)
730 min_seq = c->m_seqno;
734 if (no_of_clients >= parent->m_max_clients)
737 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
739 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
740 m_session_str, parent->m_max_clients, c->m_seqno);
741 if (c->m_server && c->m_server != this)
742 delete c->m_server; // PROBLEM: m_ref_count!
747 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
748 m_session_str, parent->m_max_clients,
749 c->m_seqno, parent->m_seqno, c->get_hostname());
753 c->m_cookie = xstrdup(cookie);
754 c->m_seqno = parent->m_seqno;
755 if (c->m_server && c->m_server != this)
757 c->m_server->m_client = 0;
758 delete c->m_server; // PROBLEM: m_ref_count!
761 c->m_target_idletime = m_target_idletime;
762 c->timeout(m_target_idletime);
764 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
765 c->set_APDU_yazlog(1);
767 c->set_APDU_yazlog(0);
774 yaz_log (YLOG_LOG, "%sNEW %d %s",
775 m_session_str, parent->m_seqno, m_proxyTarget);
776 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
777 c->m_next = parent->m_clientPool;
779 c->m_next->m_prev = &c->m_next;
780 parent->m_clientPool = c;
781 c->m_prev = &parent->m_clientPool;
787 c->m_cookie = xstrdup(cookie);
789 c->m_seqno = parent->m_seqno;
791 c->m_last_resultCount = 0;
794 c->m_sr_transform = 0;
796 c->m_resultSetStartPoint = 0;
798 if (c->client(m_proxyTarget))
803 c->m_target_idletime = m_target_idletime;
806 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
807 c->set_APDU_yazlog(1);
809 c->set_APDU_yazlog(0);
811 c->set_idAuthentication(apdu);
813 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
817 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
820 for (i = 0; i<num; i++)
823 Z_DefaultDiagFormat *r;
824 Z_DiagRec *p = pp[i];
825 if (p->which != Z_DiagRec_defaultFormat)
827 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
831 r = p->u.defaultFormat;
832 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
833 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
834 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
837 case Z_DefaultDiagFormat_v2Addinfo:
838 yaz_log(YLOG_LOG, "%sError %d %s:%s",
840 *r->condition, diagbib1_str(*r->condition),
843 case Z_DefaultDiagFormat_v3Addinfo:
844 yaz_log(YLOG_LOG, "%sError %d %s:%s",
846 *r->condition, diagbib1_str(*r->condition),
853 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
855 if (!m_stylesheet_xsp || p->num_records <= 0)
857 return 0; /* no XSLT to be done ... */
860 m_stylesheet_offset = 0;
861 m_stylesheet_nprl = p;
862 m_stylesheet_apdu = apdu;
863 m_timeout_mode = timeout_xsl;
869 void Yaz_Proxy::convert_xsl_delay()
872 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
873 if (npr->which == Z_NamePlusRecord_databaseRecord)
875 Z_External *r = npr->u.databaseRecord;
876 if (r->which == Z_External_octet)
879 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
881 xmlDocPtr res, doc = xmlParseMemory(
882 (char*) r->u.octet_aligned->buf,
883 r->u.octet_aligned->len);
886 yaz_log(YLOG_LOG, "%sXSLT convert %d",
887 m_session_str, m_stylesheet_offset);
888 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
895 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
897 m_stylesheet_nprl->records[m_stylesheet_offset]->
899 z_ext_record(odr_encode(), VAL_TEXT_XML,
900 (char*) out_buf, out_len);
909 m_stylesheet_offset++;
910 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
912 m_timeout_mode = timeout_normal;
913 m_stylesheet_nprl = 0;
915 if (m_stylesheet_xsp)
916 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
918 m_stylesheet_xsp = 0;
919 timeout(m_client_idletime);
920 send_PDU_convert(m_stylesheet_apdu);
926 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
928 if (m_frontend_type != VAL_NONE)
931 for (i = 0; i < p->num_records; i++)
933 Z_NamePlusRecord *npr = p->records[i];
934 if (npr->which == Z_NamePlusRecord_databaseRecord)
936 Z_External *r = npr->u.databaseRecord;
937 if (r->which == Z_External_octet)
940 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
942 if (!m_usemarcon->m_stage1)
944 m_usemarcon->m_stage1 = new CDetails();
946 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
947 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
948 int res = m_usemarcon->m_stage1->Start();
953 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
954 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
956 if (!m_usemarcon->m_stage2)
958 m_usemarcon->m_stage2 = new CDetails();
960 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
961 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
962 res = m_usemarcon->m_stage2->Start();
966 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
970 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
973 npr->u.databaseRecord =
974 z_ext_record(odr_encode(),
982 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
988 npr->u.databaseRecord =
989 z_ext_record(odr_encode(),
991 (char*) r->u.octet_aligned->buf,
992 r->u.octet_aligned->len);
999 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1000 const char *backend_charset)
1002 int sel = m_charset_converter->get_client_charset_selected();
1003 const char *client_record_charset =
1004 m_charset_converter->get_client_query_charset();
1005 if (sel && backend_charset && client_record_charset &&
1006 strcmp(backend_charset, client_record_charset))
1009 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1011 yaz_marc_t mt = yaz_marc_create();
1012 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1013 yaz_marc_iconv(mt, cd);
1014 for (i = 0; i < p->num_records; i++)
1016 Z_NamePlusRecord *npr = p->records[i];
1017 if (npr->which == Z_NamePlusRecord_databaseRecord)
1019 Z_External *r = npr->u.databaseRecord;
1020 oident *ent = oid_getentbyoid(r->direct_reference);
1021 if (!ent || ent->value == VAL_NONE)
1024 if (ent->value == VAL_SUTRS)
1026 WRBUF w = wrbuf_alloc();
1028 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1029 r->u.octet_aligned->len);
1030 npr->u.databaseRecord =
1031 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1035 else if (ent->value == VAL_TEXT_XML)
1039 else if (r->which == Z_External_octet)
1043 if (yaz_marc_decode_buf(mt,
1044 (char*) r->u.octet_aligned->buf,
1045 r->u.octet_aligned->len,
1048 npr->u.databaseRecord =
1049 z_ext_record(odr_encode(), ent->value, result, rlen);
1050 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1057 yaz_iconv_close(cd);
1058 yaz_marc_destroy(mt);
1062 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1063 const char *backend_charset)
1066 if (!backend_charset)
1067 backend_charset = "MARC-8";
1068 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1069 yaz_marc_t mt = yaz_marc_create();
1070 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1071 yaz_marc_iconv(mt, cd);
1072 for (i = 0; i < p->num_records; i++)
1074 Z_NamePlusRecord *npr = p->records[i];
1075 if (npr->which == Z_NamePlusRecord_databaseRecord)
1077 Z_External *r = npr->u.databaseRecord;
1078 if (r->which == Z_External_OPAC)
1080 WRBUF w = wrbuf_alloc();
1082 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1083 npr->u.databaseRecord = z_ext_record(
1084 odr_encode(), VAL_TEXT_XML,
1085 wrbuf_buf(w), wrbuf_len(w)
1089 else if (r->which == Z_External_octet)
1093 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1094 r->u.octet_aligned->len,
1097 npr->u.databaseRecord =
1098 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1104 yaz_iconv_close(cd);
1105 yaz_marc_destroy(mt);
1108 void Yaz_Proxy::logtime()
1110 #if HAVE_GETTIMEOFDAY
1111 struct timeval *tv = (struct timeval*) m_time_tv;
1115 gettimeofday(&tv1, 0);
1116 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1117 (tv1.tv_usec - tv->tv_usec);
1119 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1120 diff/1000000, (diff/1000)%1000);
1127 int Yaz_Proxy::send_http_response(int code)
1129 ODR o = odr_encode();
1130 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1131 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1133 hres->version = odr_strdup(o, m_http_version);
1134 if (m_http_keepalive)
1135 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1139 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1141 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1145 int r = send_GDU(gdu, &len);
1146 m_bytes_sent += len;
1147 m_bw_stat.add_bytes(len);
1150 recv_GDU_more(true);
1155 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1157 ODR o = odr_encode();
1158 const char *ctype = "text/xml";
1159 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1160 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1162 hres->version = odr_strdup(o, m_http_version);
1163 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1164 if (m_http_keepalive)
1165 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1168 if (http_code == 401)
1169 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1171 static Z_SOAP_Handler soap_handlers[2] = {
1173 {"http://www.loc.gov/zing/srw/", 0,
1174 (Z_SOAP_fun) yaz_srw_codec},
1179 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1180 soap_package->which = Z_SOAP_generic;
1181 soap_package->u.generic =
1182 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1183 soap_package->u.generic->no = 0;
1184 soap_package->u.generic->ns = soap_handlers[0].ns;
1185 soap_package->u.generic->p = (void *) srw_pdu;
1186 soap_package->ns = m_soap_ns;
1187 z_soap_codec_enc_xsl(o, &soap_package,
1188 &hres->content_buf, &hres->content_len,
1189 soap_handlers, 0, m_s2z_stylesheet);
1190 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1192 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1196 int r = send_GDU(gdu, &len);
1197 m_bytes_sent += len;
1198 m_bw_stat.add_bytes(len);
1201 recv_GDU_more(true);
1206 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1208 ODR o = odr_encode();
1209 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1210 odr_malloc(o, sizeof(*diagnostic));
1211 int num_diagnostic = 1;
1212 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1213 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1216 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1217 Z_DefaultDiagFormat *ddf)
1219 int bib1_code = *ddf->condition;
1220 if (bib1_code == 109)
1222 srw_res->num_diagnostics = 1;
1223 srw_res->diagnostics = (Z_SRW_diagnostic *)
1224 odr_malloc(o, sizeof(*srw_res->diagnostics));
1225 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1226 yaz_diag_bib1_to_srw(*ddf->condition),
1231 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1233 ODR o = odr_encode();
1234 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1235 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1237 srw_res->numberOfRecords = odr_intdup (o, hits);
1238 if (records && records->which == Z_Records_DBOSD)
1240 srw_res->num_records =
1241 records->u.databaseOrSurDiagnostics->num_records;
1243 srw_res->records = (Z_SRW_record *)
1244 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1245 for (i = 0; i < srw_res->num_records; i++)
1247 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1248 if (npr->which != Z_NamePlusRecord_databaseRecord)
1250 srw_res->records[i].recordSchema = "diagnostic";
1251 srw_res->records[i].recordPacking = m_s2z_packing;
1252 srw_res->records[i].recordData_buf = "67";
1253 srw_res->records[i].recordData_len = 2;
1254 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1257 Z_External *r = npr->u.databaseRecord;
1258 oident *ent = oid_getentbyoid(r->direct_reference);
1259 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1261 srw_res->records[i].recordSchema = m_schema;
1262 srw_res->records[i].recordPacking = m_s2z_packing;
1263 srw_res->records[i].recordData_buf = (char*)
1264 r->u.octet_aligned->buf;
1265 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1266 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1270 srw_res->records[i].recordSchema = "diagnostic";
1271 srw_res->records[i].recordPacking = m_s2z_packing;
1272 srw_res->records[i].recordData_buf = "67";
1273 srw_res->records[i].recordData_len = 2;
1274 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1278 if (records && records->which == Z_Records_NSD)
1281 http_code = z_to_srw_diag(odr_encode(), srw_res,
1282 records->u.nonSurrogateDiagnostic);
1284 return send_http_response(http_code);
1286 return send_srw_response(srw_pdu);
1290 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1291 int num_diagnostics, int http_code /* = 200 */)
1293 ODR o = odr_encode();
1294 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1295 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1297 srw_res->num_diagnostics = num_diagnostics;
1298 srw_res->diagnostics = diagnostics;
1299 return send_srw_response(srw_pdu, http_code);
1302 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1303 int num_diagnostics)
1305 Yaz_ProxyConfig *cfg = check_reconfigure();
1309 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1310 m_s2z_database, &len);
1313 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1314 Z_SRW_explainResponse *er = res->u.explain_response;
1316 er->record.recordData_buf = b;
1317 er->record.recordData_len = len;
1318 er->record.recordPacking = m_s2z_packing;
1319 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1321 er->diagnostics = diagnostics;
1322 er->num_diagnostics = num_diagnostics;
1323 return send_srw_response(res);
1326 return send_http_response(404);
1329 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1333 if (apdu->which == Z_APDU_initResponse)
1335 Z_InitResponse *res = apdu->u.initResponse;
1336 if (*res->result == 0)
1338 send_to_srw_client_error(3, 0);
1340 else if (!m_s2z_search_apdu)
1342 send_srw_explain_response(0, 0);
1346 handle_incoming_Z_PDU(m_s2z_search_apdu);
1349 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1351 m_s2z_search_apdu = 0;
1352 Z_SearchResponse *res = apdu->u.searchResponse;
1353 m_s2z_hit_count = *res->resultCount;
1354 if (res->records && res->records->which == Z_Records_NSD)
1356 send_to_srw_client_ok(0, res->records, 1);
1358 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1361 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1363 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1365 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1367 *pr->numberOfRecordsRequested =
1368 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1370 handle_incoming_Z_PDU(m_s2z_present_apdu);
1374 m_s2z_present_apdu = 0;
1375 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1378 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1381 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1383 m_s2z_present_apdu = 0;
1384 Z_PresentResponse *res = apdu->u.presentResponse;
1385 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1391 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1392 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1394 int r = send_Z_PDU(apdu, &len);
1395 m_bytes_sent += len;
1396 m_bw_stat.add_bytes(len);
1403 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1405 int kill_session = 0;
1406 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1409 *new_id = m_referenceId;
1411 if (apdu->which == Z_APDU_searchResponse)
1413 Z_SearchResponse *sr = apdu->u.searchResponse;
1414 Z_Records *p = sr->records;
1415 if (p && p->which == Z_Records_NSD)
1417 Z_DiagRec dr, *dr_p = &dr;
1418 dr.which = Z_DiagRec_defaultFormat;
1419 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1421 *sr->searchStatus = 0;
1422 display_diagrecs(&dr_p, 1);
1426 if (p && p->which == Z_Records_DBOSD)
1430 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1433 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1434 if (m_marcxml_mode == marcxml)
1435 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1438 convert_records_charset(p->u.databaseOrSurDiagnostics,
1440 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1444 if (sr->resultCount)
1446 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1448 if (*sr->resultCount < 0)
1450 m_flag_invalid_session = 1;
1453 *sr->searchStatus = 0;
1455 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1456 *sr->resultCount = 0;
1461 else if (apdu->which == Z_APDU_presentResponse)
1463 Z_PresentResponse *sr = apdu->u.presentResponse;
1464 Z_Records *p = sr->records;
1465 if (p && p->which == Z_Records_NSD)
1467 Z_DiagRec dr, *dr_p = &dr;
1468 dr.which = Z_DiagRec_defaultFormat;
1469 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1470 if (*sr->presentStatus == Z_PresentStatus_success)
1471 *sr->presentStatus = Z_PresentStatus_failure;
1472 display_diagrecs(&dr_p, 1);
1474 if (p && p->which == Z_Records_DBOSD)
1478 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1481 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1482 if (m_marcxml_mode == marcxml)
1483 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1486 convert_records_charset(p->u.databaseOrSurDiagnostics,
1488 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1492 else if (apdu->which == Z_APDU_initResponse)
1494 //Get and check negotiation record
1495 //from init response.
1496 handle_charset_lang_negotiation(apdu);
1498 if (m_initRequest_options)
1501 (Odr_bitmask *)odr_malloc(odr_encode(),
1502 sizeof(Odr_bitmask));
1503 ODR_MASK_ZERO(nopt);
1506 for (i = 0; i<24; i++)
1507 if (ODR_MASK_GET(m_initRequest_options, i) &&
1508 ODR_MASK_GET(apdu->u.initResponse->options, i))
1509 ODR_MASK_SET(nopt, i);
1510 apdu->u.initResponse->options = nopt;
1512 if (m_initRequest_version)
1514 Z_ProtocolVersion *nopt =
1515 (Odr_bitmask *)odr_malloc(odr_encode(),
1516 sizeof(Odr_bitmask));
1517 ODR_MASK_ZERO(nopt);
1520 for (i = 0; i<8; i++)
1521 if (ODR_MASK_GET(m_initRequest_version, i) &&
1522 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1523 ODR_MASK_SET(nopt, i);
1524 apdu->u.initResponse->protocolVersion = nopt;
1526 apdu->u.initResponse->preferredMessageSize =
1527 odr_intdup(odr_encode(),
1528 m_client->m_initResponse_preferredMessageSize >
1529 m_initRequest_preferredMessageSize ?
1530 m_initRequest_preferredMessageSize :
1531 m_client->m_initResponse_preferredMessageSize);
1532 apdu->u.initResponse->maximumRecordSize =
1533 odr_intdup(odr_encode(),
1534 m_client->m_initResponse_maximumRecordSize >
1535 m_initRequest_maximumRecordSize ?
1536 m_initRequest_maximumRecordSize :
1537 m_client->m_initResponse_maximumRecordSize);
1540 int r = send_PDU_convert(apdu);
1547 m_parent->pre_init();
1552 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1554 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1556 odr_reset(m_idAuthentication_odr);
1557 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1558 m_idAuthentication_ber_buf =
1559 odr_getbuf(m_idAuthentication_odr,
1560 &m_idAuthentication_ber_size, 0);
1563 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1568 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1570 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1571 ODR odr = odr_createmem(ODR_ENCODE);
1573 z_IdAuthentication(odr, &t, 1, 0);
1575 char *buf = odr_getbuf(odr, &sz, 0);
1576 if (buf && m_idAuthentication_ber_buf
1577 && sz == m_idAuthentication_ber_size
1578 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1584 if (!buf && !m_idAuthentication_ber_buf)
1589 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1592 const char *apdu_name_tmp = apdu_name(apdu);
1593 int r = send_Z_PDU(apdu, &len);
1594 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1595 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1597 apdu_name_tmp, get_hostname(), len);
1598 m_bytes_sent += len;
1602 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1604 if (apdu->which == Z_APDU_presentRequest)
1606 Z_PresentRequest *pr = apdu->u.presentRequest;
1607 int toget = *pr->numberOfRecordsRequested;
1608 int start = *pr->resultSetStartPoint;
1610 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1611 pr->resultSetId, start, toget);
1613 if (*m_parent->m_optimize == '0')
1616 if (!m_client->m_last_resultSetId)
1618 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1619 new_apdu->u.presentResponse->records =
1620 create_nonSurrogateDiagnostics(odr_encode(), 30,
1622 send_to_client(new_apdu);
1625 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1627 if (start+toget-1 > m_client->m_last_resultCount)
1629 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1630 new_apdu->u.presentResponse->records =
1631 create_nonSurrogateDiagnostics(odr_encode(), 13, 0);
1632 send_to_client(new_apdu);
1635 Z_NamePlusRecordList *npr;
1637 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1638 m_session_str, start, toget, yaz_z3950oid_to_str(
1639 pr->preferredRecordSyntax, &oclass));
1641 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1642 pr->preferredRecordSyntax,
1643 pr->recordComposition))
1645 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1647 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1648 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1650 new_apdu->u.presentResponse->numberOfRecordsReturned
1651 = odr_intdup(odr_encode(), toget);
1653 new_apdu->u.presentResponse->records = (Z_Records*)
1654 odr_malloc(odr_encode(), sizeof(Z_Records));
1655 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1656 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1657 new_apdu->u.presentResponse->nextResultSetPosition =
1658 odr_intdup(odr_encode(), start+toget);
1660 send_to_client(new_apdu);
1666 if (apdu->which != Z_APDU_searchRequest)
1668 Z_SearchRequest *sr = apdu->u.searchRequest;
1669 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1670 Yaz_Z_Databases this_databases;
1672 this_databases.set(sr->num_databaseNames, (const char **)
1675 this_query->set_Z_Query(sr->query);
1677 char query_str[120];
1678 this_query->print(query_str, sizeof(query_str)-1);
1679 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1681 if (*m_parent->m_optimize != '0' &&
1682 m_client->m_last_ok && m_client->m_last_query &&
1683 m_client->m_last_query->match(this_query) &&
1684 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1685 m_client->m_last_databases.match(this_databases))
1688 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1689 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1691 Z_NamePlusRecordList *npr;
1692 int toget = *sr->mediumSetPresentNumber;
1693 Z_RecordComposition *comp = 0;
1695 if (toget > m_client->m_last_resultCount)
1696 toget = m_client->m_last_resultCount;
1698 if (sr->mediumSetElementSetNames)
1700 comp = (Z_RecordComposition *)
1701 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1702 comp->which = Z_RecordComp_simple;
1703 comp->u.simple = sr->mediumSetElementSetNames;
1706 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1707 sr->preferredRecordSyntax, comp))
1709 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1711 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1712 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1713 new_apdu->u.searchResponse->resultCount =
1714 &m_client->m_last_resultCount;
1716 new_apdu->u.searchResponse->numberOfRecordsReturned
1717 = odr_intdup(odr_encode(), toget);
1719 new_apdu->u.searchResponse->presentStatus =
1720 odr_intdup(odr_encode(), Z_PresentStatus_success);
1721 new_apdu->u.searchResponse->records = (Z_Records*)
1722 odr_malloc(odr_encode(), sizeof(Z_Records));
1723 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1724 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1725 new_apdu->u.searchResponse->nextResultSetPosition =
1726 odr_intdup(odr_encode(), toget+1);
1727 send_to_client(new_apdu);
1733 // send present request (medium size)
1734 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1737 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1738 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1739 pr->referenceId = sr->referenceId;
1740 pr->resultSetId = sr->resultSetName;
1741 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1742 *pr->numberOfRecordsRequested = toget;
1743 pr->recordComposition = comp;
1744 m_client->m_sr_transform = 1;
1748 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1749 m_client->m_last_resultCount <= 0)
1751 // large set. Return pseudo-search response immediately
1752 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1754 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1755 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1756 new_apdu->u.searchResponse->resultCount =
1757 &m_client->m_last_resultCount;
1758 send_to_client(new_apdu);
1763 Z_NamePlusRecordList *npr;
1764 int toget = m_client->m_last_resultCount;
1765 Z_RecordComposition *comp = 0;
1767 // send a present request (small set)
1769 if (sr->smallSetElementSetNames)
1771 comp = (Z_RecordComposition *)
1772 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1773 comp->which = Z_RecordComp_simple;
1774 comp->u.simple = sr->smallSetElementSetNames;
1777 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1778 sr->preferredRecordSyntax, comp))
1780 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1782 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1783 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1784 new_apdu->u.searchResponse->resultCount =
1785 &m_client->m_last_resultCount;
1787 new_apdu->u.searchResponse->numberOfRecordsReturned
1788 = odr_intdup(odr_encode(), toget);
1790 new_apdu->u.searchResponse->presentStatus =
1791 odr_intdup(odr_encode(), Z_PresentStatus_success);
1792 new_apdu->u.searchResponse->records = (Z_Records*)
1793 odr_malloc(odr_encode(), sizeof(Z_Records));
1794 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1795 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1796 new_apdu->u.searchResponse->nextResultSetPosition =
1797 odr_intdup(odr_encode(), toget+1);
1798 send_to_client(new_apdu);
1803 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1805 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1806 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1807 pr->referenceId = sr->referenceId;
1808 pr->resultSetId = sr->resultSetName;
1809 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1810 *pr->numberOfRecordsRequested = toget;
1811 pr->recordComposition = comp;
1812 m_client->m_sr_transform = 1;
1817 else // query doesn't match
1819 delete m_client->m_last_query;
1820 m_client->m_last_query = this_query;
1821 m_client->m_last_ok = 0;
1822 m_client->m_cache.clear();
1823 m_client->m_resultSetStartPoint = 0;
1825 xfree (m_client->m_last_resultSetId);
1826 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1828 m_client->m_last_databases.set(sr->num_databaseNames,
1829 (const char **) sr->databaseNames);
1835 void Yaz_Proxy::inc_request_no()
1837 char *cp = m_session_str + strlen(m_session_str)-1;
1840 while (*cp && *cp != ' ')
1843 sprintf(cp+1, "%d ", m_request_no);
1846 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1850 m_bytes_recv += len;
1852 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1853 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1854 m_session_str, gdu_name(apdu), len);
1856 #if HAVE_GETTIMEOFDAY
1857 gettimeofday((struct timeval *) m_time_tv, 0);
1859 m_bw_stat.add_bytes(len);
1860 m_pdu_stat.add_bytes(1);
1862 GDU *gdu = new GDU(apdu);
1863 m_in_queue.enqueue(gdu);
1865 recv_GDU_more(false);
1868 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1870 int reduce = m_initial_reduce; // initial reduce from connect phase..
1871 m_initial_reduce = 0; // reset it..
1873 int bw_total = m_bw_stat.get_total();
1874 int pdu_total = m_pdu_stat.get_total();
1875 int search_total = m_search_stat.get_total();
1877 assert(m_timeout_mode == timeout_busy);
1878 assert(m_timeout_gdu == 0);
1881 reduce += search_total / m_search_max;
1883 reduce += (bw_total/m_bw_max);
1886 if (pdu_total > m_pdu_max)
1888 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
1889 reduce = (reduce > nreduce) ? reduce : nreduce;
1895 /* uncomment to force a big reduce */
1896 m_timeout_mode = timeout_reduce;
1897 m_timeout_gdu = gdu;
1898 timeout(3); // call us reduce seconds later
1903 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
1904 m_session_str, reduce, bw_total, pdu_total, search_total,
1905 m_bw_max, m_pdu_max, m_search_max);
1907 m_timeout_mode = timeout_reduce;
1908 m_timeout_gdu = gdu;
1909 timeout(reduce); // call us reduce seconds later
1912 recv_GDU_normal(gdu);
1915 void Yaz_Proxy::recv_GDU_more(bool normal)
1918 if (normal && m_timeout_mode == timeout_busy)
1919 m_timeout_mode = timeout_normal;
1920 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
1922 m_timeout_mode = timeout_busy;
1927 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
1930 gdu->move_away_gdu(odr_decode(), &apdu);
1933 if (apdu->which == Z_GDU_Z3950)
1934 handle_incoming_Z_PDU(apdu->u.z3950);
1935 else if (apdu->which == Z_GDU_HTTP_Request)
1936 handle_incoming_HTTP(apdu->u.HTTP_Request);
1939 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
1941 if (m_max_record_retrieve)
1943 if (apdu->which == Z_APDU_presentRequest)
1945 Z_PresentRequest *pr = apdu->u.presentRequest;
1946 if (pr->numberOfRecordsRequested &&
1947 *pr->numberOfRecordsRequested > m_max_record_retrieve)
1948 *pr->numberOfRecordsRequested = m_max_record_retrieve;
1953 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
1955 if (apdu->which == Z_APDU_initRequest)
1957 if (m_initRequest_options &&
1958 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
1959 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
1961 // There is no negotiation proposal from
1962 // client's side. OK. The proxy negotiation
1964 Z_InitRequest *initRequest = apdu->u.initRequest;
1965 Z_OtherInformation **otherInfo;
1966 Z_OtherInformationUnit *oi;
1967 get_otherInfoAPDU(apdu, &otherInfo);
1968 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
1971 ODR_MASK_SET(initRequest->options,
1972 Z_Options_negotiationModel);
1973 oi->which = Z_OtherInfo_externallyDefinedInfo;
1974 oi->information.externallyDefinedInfo =
1975 yaz_set_proposal_charneg(odr_encode(),
1976 (const char**)&m_proxy_negotiation_charset,
1977 m_proxy_negotiation_charset ? 1:0,
1978 (const char**)&m_proxy_negotiation_lang,
1979 m_proxy_negotiation_lang ? 1:0,
1983 else if (m_initRequest_options &&
1984 ODR_MASK_GET(m_initRequest_options,
1985 Z_Options_negotiationModel) &&
1986 m_charset_converter->get_target_query_charset())
1988 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
1990 m_charset_converter->get_target_query_charset());
1991 Z_InitRequest *initRequest = apdu->u.initRequest;
1992 Z_CharSetandLanguageNegotiation *negotiation =
1993 yaz_get_charneg_record (initRequest->otherInfo);
1995 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1997 NMEM nmem = nmem_create();
1998 char **charsets = 0;
1999 int num_charsets = 0;
2003 yaz_get_proposal_charneg (nmem, negotiation,
2004 &charsets, &num_charsets,
2005 &langs, &num_langs, &selected);
2007 for (i = 0; i<num_charsets; i++)
2008 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2010 for (i = 0; i<num_langs; i++)
2011 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2014 const char *t_charset =
2015 m_charset_converter->get_target_query_charset();
2016 // sweep through charsets and pick the first supported
2018 for (i = 0; i<num_charsets; i++)
2020 const char *c_charset = charsets[i];
2021 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2024 if (i != num_charsets)
2026 // got one .. set up ODR for reverse direction
2027 const char *c_charset = charsets[i];
2028 odr_set_charset(odr_encode(), c_charset, t_charset);
2029 m_charset_converter->set_client_query_charset(c_charset);
2030 m_charset_converter->set_client_charset_selected(selected);
2033 ODR_MASK_CLEAR(m_initRequest_options,
2034 Z_Options_negotiationModel);
2035 yaz_del_charneg_record(&initRequest->otherInfo);
2039 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2043 else if (m_charset_converter->get_target_query_charset() &&
2044 m_proxy_negotiation_default_charset)
2046 m_charset_converter->
2047 set_client_query_charset(m_proxy_negotiation_default_charset);
2050 else if (apdu->which == Z_APDU_initResponse)
2052 Z_InitResponse *initResponse = apdu->u.initResponse;
2053 Z_OtherInformation **otherInfo;
2054 get_otherInfoAPDU(apdu, &otherInfo);
2056 Z_CharSetandLanguageNegotiation *charneg = 0;
2058 if (otherInfo && *otherInfo &&
2059 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2060 && (charneg = yaz_get_charneg_record(*otherInfo)))
2066 yaz_get_response_charneg(m_referenceId_mem, charneg,
2067 &charset, &lang, &selected);
2069 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2070 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2072 if (m_initRequest_options &&
2073 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2075 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2078 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2080 // negotiation-charset, negotiation-lang
2081 // elements of config file in use.
2083 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2086 // clear negotiation option.
2087 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2089 // Delete negotiation (charneg-3) entry.
2090 yaz_del_charneg_record(otherInfo);
2095 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2097 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2100 else if (m_charset_converter->get_client_query_charset())
2102 Z_OtherInformation **otherInfo;
2103 Z_OtherInformationUnit *oi;
2104 get_otherInfoAPDU(apdu, &otherInfo);
2105 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2108 ODR_MASK_SET(initResponse->options,
2109 Z_Options_negotiationModel);
2110 if (m_initRequest_options)
2111 ODR_MASK_SET(m_initRequest_options,
2112 Z_Options_negotiationModel);
2114 oi->which = Z_OtherInfo_externallyDefinedInfo;
2115 oi->information.externallyDefinedInfo =
2116 yaz_set_response_charneg(
2118 m_charset_converter->get_client_query_charset(),
2120 m_charset_converter->get_client_charset_selected());
2127 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2129 const char *addinfo)
2131 Z_Records *rec = (Z_Records *)
2132 odr_malloc (odr, sizeof(*rec));
2134 odr_malloc (odr, sizeof(*err));
2135 Z_DiagRec *drec = (Z_DiagRec *)
2136 odr_malloc (odr, sizeof(*drec));
2137 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2138 odr_malloc (odr, sizeof(*dr));
2140 rec->which = Z_Records_NSD;
2141 rec->u.nonSurrogateDiagnostic = dr;
2142 dr->diagnosticSetId =
2143 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2144 dr->condition = err;
2145 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2146 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2150 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2152 if (apdu->which == Z_APDU_searchRequest &&
2153 apdu->u.searchRequest->query &&
2154 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2155 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2157 Z_RPNQuery *rpnquery = 0;
2158 Z_SearchRequest *sr = apdu->u.searchRequest;
2161 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2162 sr->query->u.type_104->u.cql);
2164 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2165 &rpnquery, odr_encode(),
2168 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2171 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2172 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2174 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2175 new_apdu->u.searchResponse->records =
2176 create_nonSurrogateDiagnostics(odr_encode(),
2177 yaz_diag_srw_to_bib1(r),
2179 *new_apdu->u.searchResponse->searchStatus = 0;
2181 send_to_client(new_apdu);
2187 sr->query->which = Z_Query_type_1;
2188 sr->query->u.type_1 = rpnquery;
2195 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2197 if (apdu->which == Z_APDU_searchRequest &&
2198 apdu->u.searchRequest->query)
2200 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2201 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2204 m_charset_converter->set_client_query_charset("UTF-8");
2205 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2206 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2213 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2215 if (apdu->which == Z_APDU_searchRequest)
2217 Z_SearchRequest *sr = apdu->u.searchRequest;
2221 Yaz_ProxyConfig *cfg = check_reconfigure();
2223 err = cfg->check_query(odr_encode(), m_default_target,
2224 sr->query, &addinfo);
2227 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2229 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2230 new_apdu->u.searchResponse->records =
2231 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2232 *new_apdu->u.searchResponse->searchStatus = 0;
2234 send_to_client(new_apdu);
2242 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2244 if (apdu->which != Z_APDU_initRequest)
2245 return 1; // pass if no init request
2246 Z_InitRequest *req = apdu->u.initRequest;
2248 Yaz_ProxyConfig *cfg = check_reconfigure();
2250 return 1; // pass if no config
2253 if (req->idAuthentication == 0)
2255 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2258 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2260 ret = cfg->client_authentication(
2262 req->idAuthentication->u.idPass->userId,
2263 req->idAuthentication->u.idPass->groupId,
2264 req->idAuthentication->u.idPass->password,
2267 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2269 char user[64], pass[64];
2272 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2273 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2277 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2282 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2284 m_marcxml_mode = none;
2285 if (apdu->which == Z_APDU_searchRequest)
2287 Z_SearchRequest *sr = apdu->u.searchRequest;
2290 Yaz_ProxyConfig *cfg = check_reconfigure();
2292 Z_RecordComposition rc_temp, *rc = 0;
2293 if (sr->smallSetElementSetNames)
2295 rc_temp.which = Z_RecordComp_simple;
2296 rc_temp.u.simple = sr->smallSetElementSetNames;
2300 if (sr->preferredRecordSyntax)
2303 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2304 m_frontend_type = ent->value;
2307 m_frontend_type = VAL_NONE;
2309 char *stylesheet_name = 0;
2311 err = cfg->check_syntax(odr_encode(),
2313 sr->preferredRecordSyntax, rc,
2314 &addinfo, &stylesheet_name, &m_schema,
2315 &m_backend_type, &m_backend_charset,
2316 &m_usemarcon_ini_stage1,
2317 &m_usemarcon_ini_stage2);
2318 if (stylesheet_name)
2320 m_parent->low_socket_close();
2323 if (m_stylesheet_xsp)
2324 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2325 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2328 m_stylesheet_offset = 0;
2329 xfree(stylesheet_name);
2331 m_parent->low_socket_open();
2335 sr->smallSetElementSetNames = 0;
2336 sr->mediumSetElementSetNames = 0;
2337 m_marcxml_mode = marcxml;
2341 sr->preferredRecordSyntax =
2342 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2346 sr->preferredRecordSyntax =
2347 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2352 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2354 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2355 new_apdu->u.searchResponse->records =
2356 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2357 *new_apdu->u.searchResponse->searchStatus = 0;
2359 send_to_client(new_apdu);
2363 else if (m_backend_type)
2365 sr->preferredRecordSyntax =
2366 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2369 else if (apdu->which == Z_APDU_presentRequest)
2371 Z_PresentRequest *pr = apdu->u.presentRequest;
2374 Yaz_ProxyConfig *cfg = check_reconfigure();
2376 if (pr->preferredRecordSyntax)
2379 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2380 m_frontend_type = ent->value;
2383 m_frontend_type = VAL_NONE;
2385 char *stylesheet_name = 0;
2387 err = cfg->check_syntax(odr_encode(), m_default_target,
2388 pr->preferredRecordSyntax,
2389 pr->recordComposition,
2390 &addinfo, &stylesheet_name, &m_schema,
2391 &m_backend_type, &m_backend_charset,
2392 &m_usemarcon_ini_stage1,
2393 &m_usemarcon_ini_stage2
2395 if (stylesheet_name)
2397 m_parent->low_socket_close();
2400 if (m_stylesheet_xsp)
2401 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2402 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2405 m_stylesheet_offset = 0;
2406 xfree(stylesheet_name);
2408 m_parent->low_socket_open();
2412 pr->recordComposition = 0;
2413 m_marcxml_mode = marcxml;
2417 pr->preferredRecordSyntax =
2418 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2422 pr->preferredRecordSyntax =
2423 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2428 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2430 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2431 new_apdu->u.presentResponse->records =
2432 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2433 *new_apdu->u.presentResponse->presentStatus =
2434 Z_PresentStatus_failure;
2436 send_to_client(new_apdu);
2440 else if (m_backend_type)
2442 pr->preferredRecordSyntax =
2443 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2449 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2453 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2454 odr_malloc(o, sizeof(Z_ElementSetNames));
2455 esn->which = Z_ElementSetNames_generic;
2456 esn->u.generic = odr_strdup(o, schema);
2460 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2463 Yaz_ProxyConfig *cfg = check_reconfigure();
2465 t = cfg->get_explain_name(db, backend_db);
2467 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2474 xfree(m_default_target);
2475 m_default_target = xstrdup(t);
2479 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2482 if (strcmp(hreq->method, "GET"))
2484 if (hreq->path[0] != '/')
2486 const char *cp = hreq->path;
2489 if (*cp == '/' && strchr("/.", cp[1]))
2491 yaz_log(YLOG_LOG, "%sRejecting path %s", m_session_str,
2498 Yaz_ProxyConfig *cfg = check_reconfigure();
2500 if (!cfg->get_file_access_info(hreq->path+1))
2503 const char *fname = hreq->path+1;
2504 if (stat(fname, &sbuf))
2506 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2510 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2512 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2515 if (sbuf.st_size > (off_t) 1000000)
2517 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2522 ODR o = odr_encode();
2524 const char *ctype = cfg->check_mime_type(fname);
2525 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2526 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2528 hres->version = odr_strdup(o, m_http_version);
2529 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2530 if (m_http_keepalive)
2531 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2535 hres->content_len = sbuf.st_size;
2536 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2537 FILE *f = fopen(fname, "rb");
2540 fread(hres->content_buf, 1, hres->content_len, f);
2547 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2549 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2553 send_GDU(gdu, &len);
2554 recv_GDU_more(true);
2558 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2562 odr_destroy(m_s2z_odr_init);
2565 if (m_s2z_odr_search)
2567 odr_destroy(m_s2z_odr_search);
2568 m_s2z_odr_search = 0;
2571 m_http_keepalive = 0;
2573 if (!strcmp(hreq->version, "1.0"))
2575 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2576 if (v && !strcmp(v, "Keep-Alive"))
2577 m_http_keepalive = 1;
2579 m_http_keepalive = 0;
2580 m_http_version = "1.0";
2584 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2585 if (v && !strcmp(v, "close"))
2586 m_http_keepalive = 0;
2588 m_http_keepalive = 1;
2589 m_http_version = "1.1";
2592 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2593 char authorization_str[255];
2594 *authorization_str = '\0';
2595 if (a && strncasecmp(a, "Basic ", 6) == 0)
2596 base64_decode(a + 6, authorization_str, 254);
2598 Z_SRW_PDU *srw_pdu = 0;
2599 Z_SOAP *soap_package = 0;
2601 Z_SRW_diagnostic *diagnostic = 0;
2602 int num_diagnostic = 0;
2604 if (file_access(hreq))
2608 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2610 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2611 &charset, &diagnostic, &num_diagnostic) == 0)
2613 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2614 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2615 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2616 m_s2z_init_apdu = 0;
2617 m_s2z_search_apdu = 0;
2618 m_s2z_present_apdu = 0;
2620 m_s2z_stylesheet = 0;
2622 Z_IdAuthentication *auth = NULL;
2623 if (*authorization_str)
2625 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2626 auth->which = Z_IdAuthentication_idPass;
2627 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2628 auth->u.idPass->groupId = NULL;
2629 char *p = strchr(authorization_str, ':');
2634 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2636 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2639 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2642 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2644 const char *backend_db = srw_req->database;
2645 srw_get_client(srw_req->database, &backend_db);
2647 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2648 // recordXPath unsupported.
2649 if (srw_req->recordXPath)
2651 yaz_add_srw_diagnostic(odr_decode(),
2652 &diagnostic, &num_diagnostic,
2656 if (srw_req->sort_type != Z_SRW_sort_type_none)
2658 yaz_add_srw_diagnostic(odr_decode(),
2659 &diagnostic, &num_diagnostic,
2663 if (srw_req->stylesheet)
2665 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2667 // set packing for response records ..
2668 if (srw_req->recordPacking &&
2669 !strcmp(srw_req->recordPacking, "xml"))
2670 m_s2z_packing = Z_SRW_recordPacking_XML;
2672 m_s2z_packing = Z_SRW_recordPacking_string;
2676 Z_SRW_PDU *srw_pdu =
2677 yaz_srw_get(odr_encode(),
2678 Z_SRW_searchRetrieve_response);
2679 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2681 srw_res->diagnostics = diagnostic;
2682 srw_res->num_diagnostics = num_diagnostic;
2683 send_srw_response(srw_pdu);
2687 // prepare search PDU
2688 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2689 Z_APDU_searchRequest);
2690 Z_SearchRequest *z_searchRequest =
2691 m_s2z_search_apdu->u.searchRequest;
2693 z_searchRequest->num_databaseNames = 1;
2694 z_searchRequest->databaseNames = (char**)
2695 odr_malloc(m_s2z_odr_search, sizeof(char *));
2696 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2699 // query transformation
2700 Z_Query *query = (Z_Query *)
2701 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2702 z_searchRequest->query = query;
2704 if (srw_req->query_type == Z_SRW_query_type_cql)
2706 Z_External *ext = (Z_External *)
2707 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2708 ext->direct_reference =
2709 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2710 ext->indirect_reference = 0;
2711 ext->descriptor = 0;
2712 ext->which = Z_External_CQL;
2713 ext->u.cql = srw_req->query.cql;
2715 query->which = Z_Query_type_104;
2716 query->u.type_104 = ext;
2718 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2720 Z_RPNQuery *RPNquery;
2721 YAZ_PQF_Parser pqf_parser;
2723 pqf_parser = yaz_pqf_create ();
2725 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2726 srw_req->query.pqf);
2729 const char *pqf_msg;
2731 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2733 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2734 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2736 send_to_srw_client_error(10, 0);
2739 query->which = Z_Query_type_1;
2740 query->u.type_1 = RPNquery;
2742 yaz_pqf_destroy (pqf_parser);
2746 send_to_srw_client_error(7, "query");
2751 m_s2z_present_apdu = 0;
2753 if (srw_req->maximumRecords)
2754 max = *srw_req->maximumRecords;
2756 if (srw_req->startRecord)
2757 start = *srw_req->startRecord;
2760 // Some backend, such as Voyager doesn't honor piggyback
2761 // So we use present always (0 &&).
2762 if (0 && start <= 1) // Z39.50 piggyback
2764 *z_searchRequest->smallSetUpperBound = max;
2765 *z_searchRequest->mediumSetPresentNumber = max;
2766 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2768 z_searchRequest->preferredRecordSyntax =
2769 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2771 if (srw_req->recordSchema)
2773 z_searchRequest->smallSetElementSetNames =
2774 z_searchRequest->mediumSetElementSetNames =
2775 mk_esn_from_schema(m_s2z_odr_search,
2776 srw_req->recordSchema);
2779 else // Z39.50 present
2781 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2782 Z_APDU_presentRequest);
2783 Z_PresentRequest *z_presentRequest =
2784 m_s2z_present_apdu->u.presentRequest;
2785 *z_presentRequest->resultSetStartPoint = start;
2786 *z_presentRequest->numberOfRecordsRequested = max;
2787 z_presentRequest->preferredRecordSyntax =
2788 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2790 if (srw_req->recordSchema)
2792 z_presentRequest->recordComposition =
2793 (Z_RecordComposition *)
2794 odr_malloc(m_s2z_odr_search,
2795 sizeof(Z_RecordComposition));
2796 z_presentRequest->recordComposition->which =
2797 Z_RecordComp_simple;
2798 z_presentRequest->recordComposition->u.simple =
2799 mk_esn_from_schema(m_s2z_odr_search,
2800 srw_req->recordSchema);
2806 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2807 Z_APDU_initRequest);
2809 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2811 // prevent m_initRequest_apdu memory from being grabbed
2812 // in Yaz_Proxy::handle_incoming_Z_PDU
2813 m_initRequest_apdu = m_s2z_init_apdu;
2814 handle_incoming_Z_PDU(m_s2z_init_apdu);
2819 handle_incoming_Z_PDU(m_s2z_search_apdu);
2823 else if (srw_pdu->which == Z_SRW_explain_request)
2825 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2827 const char *backend_db = srw_req->database;
2828 srw_get_client(srw_req->database, &backend_db);
2830 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2833 if (srw_req->stylesheet)
2835 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2837 if (srw_req->recordPacking &&
2838 !strcmp(srw_req->recordPacking, "xml"))
2839 m_s2z_packing = Z_SRW_recordPacking_XML;
2841 m_s2z_packing = Z_SRW_recordPacking_string;
2845 send_srw_explain_response(diagnostic, num_diagnostic);
2851 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2852 Z_APDU_initRequest);
2854 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2856 // prevent m_initRequest_apdu memory from being grabbed
2857 // in Yaz_Proxy::handle_incoming_Z_PDU
2858 m_initRequest_apdu = m_s2z_init_apdu;
2859 handle_incoming_Z_PDU(m_s2z_init_apdu);
2862 send_srw_explain_response(0, 0);
2865 else if (srw_pdu->which == Z_SRW_scan_request)
2867 m_s2z_database = odr_strdup(m_s2z_odr_init,
2868 srw_pdu->u.scan_request->database);
2870 yaz_add_srw_diagnostic(odr_decode(),
2871 &diagnostic, &num_diagnostic,
2873 Z_SRW_PDU *srw_pdu =
2874 yaz_srw_get(odr_encode(),
2875 Z_SRW_scan_response);
2876 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
2878 srw_res->diagnostics = diagnostic;
2879 srw_res->num_diagnostics = num_diagnostic;
2880 send_srw_response(srw_pdu);
2887 send_to_srw_client_error(4, 0);
2890 send_http_response(400);
2893 void Yaz_Proxy::handle_init(Z_APDU *apdu)
2896 Z_OtherInformation **oi;
2897 get_otherInfoAPDU(apdu, &oi);
2899 if (apdu->u.initRequest->implementationId)
2900 yaz_log(YLOG_LOG, "%simplementationId: %s",
2901 m_session_str, apdu->u.initRequest->implementationId);
2902 if (apdu->u.initRequest->implementationName)
2903 yaz_log(YLOG_LOG, "%simplementationName: %s",
2904 m_session_str, apdu->u.initRequest->implementationName);
2905 if (apdu->u.initRequest->implementationVersion)
2906 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
2907 m_session_str, apdu->u.initRequest->implementationVersion);
2908 if (m_initRequest_apdu == 0)
2910 if (m_initRequest_mem)
2911 nmem_destroy(m_initRequest_mem);
2913 m_initRequest_apdu = apdu;
2914 m_initRequest_mem = odr_extract_mem(odr_decode());
2916 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
2917 preferredMessageSize;
2918 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
2919 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
2921 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
2923 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
2924 yaz_get_charneg_record(*oi);
2926 // Save proposal charsets and langs.
2927 if (ODR_MASK_GET(apdu->u.initRequest->options,
2928 Z_Options_negotiationModel)
2929 && charSetandLangRecord)
2932 yaz_get_proposal_charneg(m_referenceId_mem,
2933 charSetandLangRecord,
2934 &m_initRequest_oi_negotiation_charsets,
2935 &m_initRequest_oi_negotiation_num_charsets,
2936 &m_initRequest_oi_negotiation_langs,
2937 &m_initRequest_oi_negotiation_num_langs,
2938 &m_initRequest_oi_negotiation_selected);
2940 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
2942 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
2943 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
2944 m_initRequest_oi_negotiation_charsets[i]:"none");
2946 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
2948 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
2949 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
2950 m_initRequest_oi_negotiation_langs[i]:"none");
2952 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
2953 m_session_str, m_initRequest_oi_negotiation_selected);
2955 // save init options for the response..
2956 m_initRequest_options = apdu->u.initRequest->options;
2958 apdu->u.initRequest->options =
2959 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2960 sizeof(Odr_bitmask));
2961 ODR_MASK_ZERO(apdu->u.initRequest->options);
2963 for (i = 0; i<= 24; i++)
2964 ODR_MASK_SET(apdu->u.initRequest->options, i);
2965 // check negotiation option
2966 if (!ODR_MASK_GET(m_initRequest_options,
2967 Z_Options_negotiationModel))
2969 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2970 Z_Options_negotiationModel);
2972 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2973 Z_Options_concurrentOperations);
2975 m_initRequest_version = apdu->u.initRequest->protocolVersion;
2976 apdu->u.initRequest->protocolVersion =
2977 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2978 sizeof(Odr_bitmask));
2979 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
2981 for (i = 0; i<= 8; i++)
2982 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
2984 handle_charset_lang_negotiation(apdu);
2985 if (m_client->m_init_flag)
2987 if (handle_init_response_for_invalid_session(apdu))
2989 if (m_client->m_initResponse)
2991 Z_APDU *apdu2 = m_client->m_initResponse;
2992 apdu2->u.initResponse->otherInfo = 0;
2993 if (m_client->m_cookie && *m_client->m_cookie)
2994 set_otherInformationString(apdu2, VAL_COOKIE, 1,
2995 m_client->m_cookie);
2996 apdu2->u.initResponse->referenceId =
2997 apdu->u.initRequest->referenceId;
2998 apdu2->u.initResponse->options = m_client->m_initResponse_options;
2999 apdu2->u.initResponse->protocolVersion =
3000 m_client->m_initResponse_version;
3002 handle_charset_lang_negotiation(apdu2);
3004 send_to_client(apdu2);
3005 m_timeout_mode = timeout_normal;
3009 m_client->m_init_flag = 1;
3012 Auth_Msg *m = new Auth_Msg;
3014 z_APDU(odr_encode(), &apdu, 0, "encode");
3015 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3016 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3017 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3018 odr_reset(odr_encode());
3021 m_my_thread->put(m);
3023 int ret = handle_authentication(apdu);
3024 result_authentication(apdu, ret);
3028 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3030 Z_ReferenceId **refid = get_referenceIdP(apdu);
3031 nmem_reset(m_referenceId_mem);
3032 if (refid && *refid)
3034 m_referenceId = (Z_ReferenceId *)
3035 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3036 m_referenceId->len = m_referenceId->size = (*refid)->len;
3037 m_referenceId->buf = (unsigned char *)
3038 nmem_malloc(m_referenceId_mem, (*refid)->len);
3039 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3044 if (!m_client && m_flag_invalid_session)
3046 // Got request for a session that is invalid..
3047 m_apdu_invalid_session = apdu; // save package
3048 m_mem_invalid_session = odr_extract_mem(odr_decode());
3049 apdu = m_initRequest_apdu; // but throw an init to the target
3052 if (apdu->which == Z_APDU_searchRequest)
3053 m_search_stat.add_bytes(1);
3055 // Determine our client.
3056 Z_OtherInformation **oi;
3057 get_otherInfoAPDU(apdu, &oi);
3058 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3062 { // HTTP. Send not found
3063 send_http_response(404);
3068 // Z39.50 just shutdown
3074 m_client->m_server = this;
3076 if (apdu->which == Z_APDU_initRequest)
3079 handle_incoming_Z_PDU_2(apdu);
3082 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3084 handle_max_record_retrieve(apdu);
3087 apdu = handle_syntax_validation(apdu);
3090 apdu = handle_query_transformation(apdu);
3093 apdu = handle_target_charset_conversion(apdu);
3096 apdu = handle_query_validation(apdu);
3099 apdu = result_set_optimize(apdu);
3103 m_client->timeout(m_target_idletime); // mark it active even
3104 recv_GDU_more(true);
3105 // though we didn't use it
3109 // delete other info construct completely if 0 elements
3110 Z_OtherInformation **oi;
3111 get_otherInfoAPDU(apdu, &oi);
3112 if (oi && *oi && (*oi)->num_elements == 0)
3115 if (apdu->which == Z_APDU_presentRequest &&
3116 m_client->m_resultSetStartPoint == 0)
3118 Z_PresentRequest *pr = apdu->u.presentRequest;
3119 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3120 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3122 m_client->m_resultSetStartPoint = 0;
3124 if (m_client->send_to_target(apdu) < 0)
3126 m_client->shutdown();
3129 m_client->m_waiting = 1;
3132 void Yaz_Proxy::connectNotify()
3136 void Yaz_Proxy::releaseClient()
3138 xfree(m_proxyTarget);
3140 m_flag_invalid_session = 0;
3141 // only keep if keep_alive flag is set...
3143 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3144 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3145 m_client->m_waiting == 0)
3147 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3149 m_client->get_hostname());
3150 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3151 m_session_str, m_client->m_pdu_recv,
3152 m_client->m_bytes_sent + m_client->m_bytes_recv,
3153 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3154 assert (m_client->m_waiting != 2);
3155 // Tell client (if any) that no server connection is there..
3156 m_client->m_server = 0;
3161 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3163 m_client->get_hostname());
3164 assert (m_client->m_waiting != 2);
3170 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3176 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3180 m_parent->pre_init();
3183 bool Yaz_Proxy::dec_ref(bool main_ptr)
3185 assert(m_ref_count > 0);
3190 m_main_ptr_dec = true;
3193 m_http_keepalive = 0;
3196 if (m_ref_count > 0)
3205 const char *Yaz_ProxyClient::get_session_str()
3209 return m_server->get_session_str();
3212 void Yaz_ProxyClient::shutdown()
3214 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3219 m_waiting = 1; // ensure it's released from Proxy in releaseClient
3220 m_server->dec_ref(true);
3226 void Yaz_Proxy::failNotify()
3229 yaz_log (YLOG_LOG, "%sConnection closed by client",
3234 void Yaz_Proxy::send_response_fail_client(const char *addr)
3238 Z_SRW_diagnostic *diagnostic = 0;
3239 int num_diagnostic = 0;
3241 yaz_add_srw_diagnostic(odr_encode(),
3242 &diagnostic, &num_diagnostic,
3243 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3244 if (m_s2z_search_apdu)
3245 send_srw_search_response(diagnostic, num_diagnostic);
3247 send_srw_explain_response(diagnostic, num_diagnostic);
3250 void Yaz_ProxyClient::failNotify()
3253 m_server->inc_request_no();
3254 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3255 get_session_str(), get_hostname());
3258 m_server->send_response_fail_client(get_hostname());
3262 void Yaz_ProxyClient::connectNotify()
3264 const char *s = get_session_str();
3265 const char *h = get_hostname();
3266 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3268 timeout(m_target_idletime);
3273 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3274 *the_PDU_Observable, int fd)
3276 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3279 Yaz_ProxyClient::~Yaz_ProxyClient()
3284 m_next->m_prev = m_prev;
3285 m_waiting = 2; // for debugging purposes only.
3286 odr_destroy(m_init_odr);
3287 odr_destroy(m_idAuthentication_odr);
3288 delete m_last_query;
3289 xfree (m_last_resultSetId);
3293 void Yaz_ProxyClient::pre_init_client()
3295 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3296 Z_InitRequest *req = apdu->u.initRequest;
3299 for (i = 0; i<= 24; i++)
3300 ODR_MASK_SET(req->options, i);
3301 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3302 Z_Options_negotiationModel);
3303 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3304 Z_Options_concurrentOperations);
3305 for (i = 0; i<= 10; i++)
3306 ODR_MASK_SET(req->protocolVersion, i);
3308 if (send_to_target(apdu) < 0)
3319 void Yaz_Proxy::pre_init()
3322 const char *name = 0;
3323 const char *zurl_in_use[MAX_ZURL_PLEX];
3324 int limit_bw, limit_pdu, limit_req, limit_search;
3325 int target_idletime, client_idletime;
3327 int keepalive_limit_bw, keepalive_limit_pdu;
3329 const char *cql2rpn = 0;
3330 const char *authentication = 0;
3331 const char *negotiation_charset = 0;
3332 const char *negotiation_lang = 0;
3334 Yaz_ProxyConfig *cfg = check_reconfigure();
3338 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3343 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3344 &limit_bw, &limit_pdu, &limit_req,
3346 &target_idletime, &client_idletime,
3348 &keepalive_limit_bw,
3349 &keepalive_limit_pdu,
3353 &negotiation_charset,
3361 for (j = 0; zurl_in_use[j]; j++)
3365 int spare_waiting = 0;
3368 for (c = m_clientPool; c; c = c->m_next)
3370 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3372 if (c->m_cookie == 0)
3374 if (c->m_server == 0)
3386 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3387 "sparew=%d preinit=%d",m_session_str,
3388 name, zurl_in_use[j], in_use, other,
3389 spare, spare_waiting, pre_init);
3390 if (spare + spare_waiting < pre_init)
3392 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3393 c->m_next = m_clientPool;
3395 c->m_next->m_prev = &c->m_next;
3397 c->m_prev = &m_clientPool;
3399 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3400 c->set_APDU_yazlog(1);
3402 c->set_APDU_yazlog(0);
3404 if (c->client(zurl_in_use[j]))
3412 c->m_target_idletime = target_idletime;
3413 c->m_seqno = m_seqno++;
3420 void Yaz_Proxy::timeoutNotify()
3425 switch(m_timeout_mode)
3427 case timeout_normal:
3431 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3434 case timeout_reduce:
3435 timeout(m_client_idletime);
3436 m_timeout_mode = timeout_busy;
3437 gdu = m_timeout_gdu;
3439 recv_GDU_normal(gdu);
3442 assert(m_stylesheet_nprl);
3443 convert_xsl_delay();
3444 recv_GDU_more(true);
3454 void Yaz_Proxy::markInvalid()
3457 m_flag_invalid_session = 1;
3460 void Yaz_ProxyClient::timeoutNotify()
3463 m_server->inc_request_no();
3465 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3469 m_server->send_response_fail_client(get_hostname());
3475 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3476 Yaz_Proxy *parent) :
3477 Z_Assoc (the_PDU_Observable)
3484 m_last_resultSetId = 0;
3485 m_last_resultCount = 0;
3489 m_init_odr = odr_createmem (ODR_DECODE);
3491 m_initResponse_options = 0;
3492 m_initResponse_version = 0;
3493 m_initResponse_preferredMessageSize = 0;
3494 m_initResponse_maximumRecordSize = 0;
3495 m_resultSetStartPoint = 0;
3496 m_bytes_sent = m_bytes_recv = 0;
3500 m_target_idletime = 600;
3502 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3503 m_idAuthentication_ber_buf = 0;
3504 m_idAuthentication_ber_size = 0;
3507 const char *Yaz_Proxy::option(const char *name, const char *value)
3509 if (!strcmp (name, "optimize")) {
3512 m_optimize = xstrdup (value);
3519 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3524 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3526 if (apdu->which == Z_GDU_Z3950)
3527 recv_Z_PDU(apdu->u.z3950, len);
3528 else if (apdu->which == Z_GDU_HTTP_Response)
3529 recv_HTTP_response(apdu->u.HTTP_Response, len);
3534 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3536 if (!m_flag_invalid_session)
3538 m_flag_invalid_session = 0;
3539 handle_incoming_Z_PDU(m_apdu_invalid_session);
3540 assert (m_mem_invalid_session);
3541 nmem_destroy(m_mem_invalid_session);
3542 m_mem_invalid_session = 0;
3546 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3548 m_bytes_recv += len;
3552 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3553 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3554 apdu_name(apdu), get_hostname(), len);
3555 if (apdu->which == Z_APDU_initResponse)
3557 if (!m_server) // if this is a pre init session , check for more
3559 NMEM nmem = odr_extract_mem (odr_decode());
3560 odr_reset (m_init_odr);
3561 nmem_transfer (m_init_odr->mem, nmem);
3562 m_initResponse = apdu;
3563 m_initResponse_options = apdu->u.initResponse->options;
3564 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3565 m_initResponse_preferredMessageSize =
3566 *apdu->u.initResponse->preferredMessageSize;
3567 m_initResponse_maximumRecordSize =
3568 *apdu->u.initResponse->maximumRecordSize;
3570 Z_InitResponse *ir = apdu->u.initResponse;
3571 char *im0 = ir->implementationName;
3574 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3581 strcat(im1, "(YAZ Proxy)");
3582 ir->implementationName = im1;
3584 nmem_destroy (nmem);
3586 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3589 if (apdu->which == Z_APDU_searchResponse)
3591 Z_SearchResponse *sr = apdu->u.searchResponse;
3592 m_last_resultCount = *sr->resultCount;
3593 int status = *sr->searchStatus;
3594 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3598 if (sr->records && sr->records->which == Z_Records_DBOSD)
3600 m_cache.add(odr_decode(),
3601 sr->records->u.databaseOrSurDiagnostics, 1,
3606 if (apdu->which == Z_APDU_presentResponse)
3608 Z_PresentResponse *pr = apdu->u.presentResponse;
3612 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3613 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3614 sr->referenceId = pr->referenceId;
3615 *sr->resultCount = m_last_resultCount;
3616 sr->records = pr->records;
3617 sr->nextResultSetPosition = pr->nextResultSetPosition;
3618 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3622 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3624 m_cache.add(odr_decode(),
3625 pr->records->u.databaseOrSurDiagnostics,
3626 m_resultSetStartPoint, -1);
3627 m_resultSetStartPoint = 0;
3631 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3633 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3636 server->send_to_client(apdu);
3637 if (apdu->which == Z_APDU_close)
3640 server->recv_GDU_more(true);
3643 void Yaz_Proxy::low_socket_close()
3648 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3649 if (m_lo_fd[i] >= 0)
3650 ::close(m_lo_fd[i]);
3654 void Yaz_Proxy::low_socket_open()
3659 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3660 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3664 int Yaz_Proxy::server(const char *addr)
3666 int r = Z_Assoc::server(addr);
3669 yaz_log(YLOG_LOG, "%sStarted proxy "
3673 " on %s", m_session_str, addr);
3679 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3681 const char *base64_chars =
3682 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3683 int len = strlen(base64);
3687 for (int pos = 0; pos <= len; pos++)
3689 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3692 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3695 char ch = (char) (ch_ptr - base64_chars);
3699 buf[buf_pos] = ch << 2;
3702 buf[buf_pos++] += (ch & 0x30) >> 4;
3703 buf[buf_pos] = (ch & 0x0f) << 4;
3706 buf[buf_pos++] += (ch & 0x3c) >> 2;
3707 buf[buf_pos] = (ch & 0x03) << 6;
3710 buf[buf_pos++] += ch;
3717 buf[buf_pos] = '\0';
3723 * indent-tabs-mode: nil
3725 * vim: shiftwidth=4 tabstop=8 expandtab