1 /* $Id: yaz-proxy.cpp,v 1.54 2006-04-12 11:55:42 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 ");
236 m_max_connect_period = 0;
238 m_limit_connect_period = 0;
239 m_timeout_mode = timeout_normal;
241 m_max_record_retrieve = 0;
245 m_flag_invalid_session = 0;
247 m_referenceId_mem = nmem_create();
249 m_marcxml_mode = none;
250 m_stylesheet_xsp = 0;
251 m_stylesheet_nprl = 0;
252 m_stylesheet_apdu = 0;
253 m_s2z_stylesheet = 0;
257 m_backend_charset = 0;
259 m_initRequest_apdu = 0;
260 m_initRequest_mem = 0;
261 m_initRequest_preferredMessageSize = 0;
262 m_initRequest_maximumRecordSize = 0;
263 m_initRequest_options = 0;
264 m_initRequest_version = 0;
265 m_initRequest_oi_negotiation_charsets = 0;
266 m_initRequest_oi_negotiation_num_charsets = 0;
267 m_initRequest_oi_negotiation_langs = 0;
268 m_initRequest_oi_negotiation_num_langs = 0;
269 m_initRequest_oi_negotiation_selected = 0;
270 m_apdu_invalid_session = 0;
271 m_mem_invalid_session = 0;
273 m_s2z_odr_search = 0;
275 m_s2z_search_apdu = 0;
276 m_s2z_present_apdu = 0;
277 m_http_keepalive = 0;
280 m_s2z_packing = Z_SRW_recordPacking_string;
281 #if HAVE_GETTIMEOFDAY
282 m_time_tv = xmalloc(sizeof(struct timeval));
283 struct timeval *tv = (struct timeval *) m_time_tv;
289 m_usemarcon_ini_stage1 = 0;
290 m_usemarcon_ini_stage2 = 0;
291 m_usemarcon = new Yaz_usemarcon();
296 m_main_ptr_dec = false;
298 m_initial_reduce = 0;
301 void Yaz_Proxy::inc_ref()
306 Yaz_Proxy::~Yaz_Proxy()
308 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
309 m_bytes_sent, m_bytes_recv);
310 nmem_destroy(m_initRequest_mem);
311 nmem_destroy(m_mem_invalid_session);
312 nmem_destroy(m_referenceId_mem);
314 xfree(m_proxyTarget);
315 xfree(m_default_target);
316 xfree(m_proxy_negotiation_charset);
317 xfree(m_proxy_negotiation_lang);
318 xfree(m_proxy_negotiation_default_charset);
319 delete m_charset_converter;
323 if (m_stylesheet_xsp)
324 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
330 xfree (m_backend_type);
331 xfree (m_backend_charset);
332 xfree (m_usemarcon_ini_stage1);
333 xfree (m_usemarcon_ini_stage2);
336 odr_destroy(m_s2z_odr_init);
337 if (m_s2z_odr_search)
338 odr_destroy(m_s2z_odr_search);
346 void Yaz_Proxy::set_debug_mode(int mode)
351 int Yaz_Proxy::set_config(const char *config)
354 m_config = new Yaz_ProxyConfig();
355 xfree(m_config_fname);
356 m_config_fname = xstrdup(config);
357 int r = m_config->read_xml(config);
361 m_config->get_generic_info(&m_log_mask, &m_max_clients,
362 &m_max_connect, &m_limit_connect, &period);
363 m_connect.set_period(period);
368 void Yaz_Proxy::set_default_target(const char *target)
370 xfree (m_default_target);
371 m_default_target = 0;
373 m_default_target = (char *) xstrdup (target);
376 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
377 const char *default_charset)
379 yaz_log(YLOG_LOG, "%sSet the proxy negotiation: charset to '%s', "
380 "default charset to '%s', language to '%s'", m_session_str,
381 charset?charset:"none",
382 default_charset?default_charset:"none",
384 xfree (m_proxy_negotiation_charset);
385 xfree (m_proxy_negotiation_lang);
386 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
388 m_proxy_negotiation_charset = (char *) xstrdup (charset);
390 m_proxy_negotiation_lang = (char *) xstrdup (lang);
392 m_proxy_negotiation_default_charset =
393 (char *) xstrdup (default_charset);
396 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
399 return m_parent->check_reconfigure();
401 Yaz_ProxyConfig *cfg = m_config;
404 yaz_log(YLOG_LOG, "reconfigure");
406 if (m_config_fname && cfg)
408 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
409 int r = cfg->read_xml(m_config_fname);
411 yaz_log(YLOG_WARN, "reconfigure failed");
416 cfg->get_generic_info(&m_log_mask, &m_max_clients,
417 &m_max_connect, &m_limit_connect,
419 m_connect.set_period(period);
423 yaz_log(YLOG_LOG, "reconfigure");
429 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
430 *the_PDU_Observable, int fd)
434 char session_str[200];
435 const char *peername = the_PDU_Observable->getpeername();
436 if (m_log_mask & PROXY_LOG_IP_CLIENT)
437 sprintf(session_str, "%ld:%d %s 0 ",
438 (long) time(0), m_session_no, peername);
440 sprintf(session_str, "%ld:%d 0 ",
441 (long) time(0), m_session_no);
444 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
446 m_connect.cleanup(false);
447 m_connect.add_connect(peername);
449 int connect_total = m_connect.get_total(peername);
450 int connect_max = m_max_connect;
451 if (connect_max && connect_total > connect_max)
453 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
454 session_str, connect_total, connect_max);
457 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", session_str,
460 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
461 m_socket_observable, this);
464 new_proxy->m_initial_reduce = connect_total / m_limit_connect;
466 new_proxy->m_config = 0;
467 new_proxy->m_config_fname = 0;
468 new_proxy->timeout(m_client_idletime);
469 new_proxy->m_target_idletime = m_target_idletime;
470 new_proxy->set_default_target(m_default_target);
471 new_proxy->m_max_clients = m_max_clients;
472 new_proxy->m_log_mask = m_log_mask;
474 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
475 new_proxy->m_log_mask = 255;
477 new_proxy->set_APDU_log(get_APDU_log());
478 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
479 new_proxy->set_APDU_yazlog(1);
481 new_proxy->set_APDU_yazlog(0);
482 strcpy(new_proxy->m_session_str, session_str);
483 new_proxy->m_peername = xstrdup(peername);
484 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
485 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
486 // create thread object the first time we get an incoming connection
488 m_my_thread = new Msg_Thread(m_socket_observable, 1);
489 new_proxy->m_my_thread = m_my_thread;
493 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
496 Z_OtherInformationUnit *oi;
498 ent.proto = PROTO_Z3950;
499 ent.oclass = CLASS_USERINFO;
500 ent.value = (oid_value) VAL_COOKIE;
501 assert (oid_ent_to_oid (&ent, oid));
503 if (oid_ent_to_oid (&ent, oid) &&
504 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
505 oi->which == Z_OtherInfo_characterInfo)
506 return oi->information.characterInfo;
509 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
512 Z_OtherInformationUnit *oi;
514 ent.proto = PROTO_Z3950;
515 ent.oclass = CLASS_USERINFO;
516 ent.value = (oid_value) VAL_PROXY;
517 if (oid_ent_to_oid (&ent, oid) &&
518 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
519 oi->which == Z_OtherInfo_characterInfo)
520 return oi->information.characterInfo;
523 const char *Yaz_Proxy::load_balance(const char **url)
525 int zurl_in_use[MAX_ZURL_PLEX];
526 int zurl_in_spare[MAX_ZURL_PLEX];
530 for (i = 0; i<MAX_ZURL_PLEX; i++)
533 zurl_in_spare[i] = 0;
535 for (c = m_parent->m_clientPool; c; c = c->m_next)
537 for (i = 0; url[i]; i++)
538 if (!strcmp(url[i], c->get_hostname()))
541 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
545 int min_use = 100000;
546 int spare_for_min = 0;
548 const char *ret_min = 0;
549 const char *ret_spare = 0;
550 for (i = 0; url[i]; i++)
552 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
553 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
554 if (min_use > zurl_in_use[i])
557 min_use = zurl_in_use[i];
558 spare_for_min = zurl_in_spare[i];
560 if (max_spare < zurl_in_spare[i])
563 max_spare = zurl_in_spare[i];
569 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
570 const char *proxy_host)
573 Yaz_Proxy *parent = m_parent;
574 Yaz_ProxyClient *c = m_client;
578 const char *url[MAX_ZURL_PLEX];
579 Yaz_ProxyConfig *cfg = check_reconfigure();
582 if (parent && parent->m_debug_mode)
584 // only to be enabled for debugging...
585 if (!strcmp(proxy_host, "stop"))
588 xfree(m_default_target);
589 m_default_target = xstrdup(proxy_host);
591 proxy_host = m_default_target;
592 int client_idletime = -1;
593 const char *cql2rpn_fname = 0;
594 const char *negotiation_charset = 0;
595 const char *negotiation_lang = 0;
596 const char *query_charset = 0;
597 const char *default_client_query_charset = 0;
598 url[0] = m_default_target;
603 cfg->get_target_info(proxy_host, url, &m_bw_max,
604 &m_pdu_max, &m_max_record_retrieve,
606 &m_target_idletime, &client_idletime,
607 &parent->m_max_clients,
608 &m_keepalive_limit_bw,
609 &m_keepalive_limit_pdu,
612 &negotiation_charset,
615 &default_client_query_charset);
617 if (client_idletime != -1)
619 m_client_idletime = client_idletime;
620 timeout(m_client_idletime);
623 m_cql2rpn.set_pqf_file(cql2rpn_fname);
624 if (negotiation_charset || negotiation_lang || default_client_query_charset)
626 set_proxy_negotiation(negotiation_charset,
627 negotiation_lang, default_client_query_charset);
629 m_charset_converter->set_target_query_charset(query_charset);
632 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
635 // we don't handle multiplexing for cookie session, so we just
636 // pick the first one in this case (anonymous users will be able
637 // to use any backend)
638 if (cookie && *cookie)
639 m_proxyTarget = (char*) xstrdup(url[0]);
641 m_proxyTarget = (char*) xstrdup(load_balance(url));
643 if (cookie && *cookie)
644 { // search in sessions with a cookie
645 for (c = parent->m_clientPool; c; c = c->m_next)
648 assert (*c->m_prev == c);
649 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
650 !strcmp(m_proxyTarget, c->get_hostname()))
653 // The following handles "cancel"
654 // If connection is busy (waiting for PDU) and
655 // we have an initRequest we can safely do re-open
656 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
658 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
665 c->m_last_resultCount = 0;
666 c->m_sr_transform = 0;
668 c->m_resultSetStartPoint = 0;
669 c->m_target_idletime = m_target_idletime;
670 if (c->client(m_proxyTarget))
677 c->m_seqno = parent->m_seqno;
678 if (c->m_server && c->m_server != this)
679 c->m_server->m_client = 0;
682 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
687 else if (!c && apdu->which == Z_APDU_initRequest )
689 // anonymous sessions without cookie.
690 // if authentication is set it is NOT anonymous se we can't share them.
691 // If charset and lang negotiation is use it is NOT anonymous session too.
692 for (c = parent->m_clientPool; c; c = c->m_next)
695 assert(*c->m_prev == c);
696 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
697 && c->compare_idAuthentication(apdu)
698 && c->compare_charset(apdu)
699 && !strcmp(m_proxyTarget, c->get_hostname()))
702 yaz_log (YLOG_LOG, "%sREUSE %d %s",
703 m_session_str, parent->m_seqno, c->get_hostname());
705 c->m_seqno = parent->m_seqno;
706 assert(c->m_server == 0);
709 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
710 c->set_APDU_yazlog(1);
712 c->set_APDU_yazlog(0);
724 if (apdu->which != Z_APDU_initRequest)
726 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
729 // go through list of clients - and find the lowest/oldest one.
730 Yaz_ProxyClient *c_min = 0;
732 int no_of_clients = 0;
733 if (parent->m_clientPool)
734 yaz_log (YLOG_DEBUG, "Existing sessions");
735 for (c = parent->m_clientPool; c; c = c->m_next)
737 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
738 c->m_waiting, c->get_hostname(),
739 c->m_cookie ? c->m_cookie : "");
741 if (min_seq < 0 || c->m_seqno < min_seq)
743 min_seq = c->m_seqno;
747 if (no_of_clients >= parent->m_max_clients)
750 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
752 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
753 m_session_str, parent->m_max_clients, c->m_seqno);
754 if (c->m_server && c->m_server != this)
755 c->m_server->dec_ref(true);
759 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
760 m_session_str, parent->m_max_clients,
761 c->m_seqno, parent->m_seqno, c->get_hostname());
765 c->m_cookie = xstrdup(cookie);
766 c->m_seqno = parent->m_seqno;
767 if (c->m_server && c->m_server != this)
769 c->m_server->m_client = 0;
770 c->m_server->dec_ref(true);
773 c->m_target_idletime = m_target_idletime;
774 c->timeout(m_target_idletime);
776 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
777 c->set_APDU_yazlog(1);
779 c->set_APDU_yazlog(0);
786 yaz_log (YLOG_LOG, "%sNEW %d %s",
787 m_session_str, parent->m_seqno, m_proxyTarget);
788 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
789 c->m_next = parent->m_clientPool;
791 c->m_next->m_prev = &c->m_next;
792 parent->m_clientPool = c;
793 c->m_prev = &parent->m_clientPool;
799 c->m_cookie = xstrdup(cookie);
801 c->m_seqno = parent->m_seqno;
803 c->m_last_resultCount = 0;
806 c->m_sr_transform = 0;
808 c->m_resultSetStartPoint = 0;
810 if (c->client(m_proxyTarget))
815 c->m_target_idletime = m_target_idletime;
818 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
819 c->set_APDU_yazlog(1);
821 c->set_APDU_yazlog(0);
823 c->set_idAuthentication(apdu);
825 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
829 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
832 for (i = 0; i<num; i++)
835 Z_DefaultDiagFormat *r;
836 Z_DiagRec *p = pp[i];
837 if (p->which != Z_DiagRec_defaultFormat)
839 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
843 r = p->u.defaultFormat;
844 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
845 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
846 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
849 case Z_DefaultDiagFormat_v2Addinfo:
850 yaz_log(YLOG_LOG, "%sError %d %s:%s",
852 *r->condition, diagbib1_str(*r->condition),
855 case Z_DefaultDiagFormat_v3Addinfo:
856 yaz_log(YLOG_LOG, "%sError %d %s:%s",
858 *r->condition, diagbib1_str(*r->condition),
865 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
867 if (!m_stylesheet_xsp || p->num_records <= 0)
869 return 0; /* no XSLT to be done ... */
872 m_stylesheet_offset = 0;
873 m_stylesheet_nprl = p;
874 m_stylesheet_apdu = apdu;
875 m_timeout_mode = timeout_xsl;
881 void Yaz_Proxy::convert_xsl_delay()
884 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
885 if (npr->which == Z_NamePlusRecord_databaseRecord)
887 Z_External *r = npr->u.databaseRecord;
888 if (r->which == Z_External_octet)
891 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
893 xmlDocPtr res, doc = xmlParseMemory(
894 (char*) r->u.octet_aligned->buf,
895 r->u.octet_aligned->len);
898 yaz_log(YLOG_LOG, "%sXSLT convert %d",
899 m_session_str, m_stylesheet_offset);
900 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
907 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
909 m_stylesheet_nprl->records[m_stylesheet_offset]->
911 z_ext_record(odr_encode(), VAL_TEXT_XML,
912 (char*) out_buf, out_len);
921 m_stylesheet_offset++;
922 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
924 m_timeout_mode = timeout_normal;
925 m_stylesheet_nprl = 0;
927 if (m_stylesheet_xsp)
928 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
930 m_stylesheet_xsp = 0;
931 timeout(m_client_idletime);
932 send_PDU_convert(m_stylesheet_apdu);
938 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
940 if (m_frontend_type != VAL_NONE)
943 for (i = 0; i < p->num_records; i++)
945 Z_NamePlusRecord *npr = p->records[i];
946 if (npr->which == Z_NamePlusRecord_databaseRecord)
948 Z_External *r = npr->u.databaseRecord;
949 if (r->which == Z_External_octet)
952 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
954 if (!m_usemarcon->m_stage1)
956 m_usemarcon->m_stage1 = new CDetails();
958 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
959 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
960 int res = m_usemarcon->m_stage1->Start();
965 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
966 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
968 if (!m_usemarcon->m_stage2)
970 m_usemarcon->m_stage2 = new CDetails();
972 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
973 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
974 res = m_usemarcon->m_stage2->Start();
978 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
982 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
985 npr->u.databaseRecord =
986 z_ext_record(odr_encode(),
994 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
1000 npr->u.databaseRecord =
1001 z_ext_record(odr_encode(),
1003 (char*) r->u.octet_aligned->buf,
1004 r->u.octet_aligned->len);
1011 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1012 const char *backend_charset)
1014 int sel = m_charset_converter->get_client_charset_selected();
1015 const char *client_record_charset =
1016 m_charset_converter->get_client_query_charset();
1017 if (sel && backend_charset && client_record_charset &&
1018 strcmp(backend_charset, client_record_charset))
1021 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1023 yaz_marc_t mt = yaz_marc_create();
1024 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1025 yaz_marc_iconv(mt, cd);
1026 for (i = 0; i < p->num_records; i++)
1028 Z_NamePlusRecord *npr = p->records[i];
1029 if (npr->which == Z_NamePlusRecord_databaseRecord)
1031 Z_External *r = npr->u.databaseRecord;
1032 oident *ent = oid_getentbyoid(r->direct_reference);
1033 if (!ent || ent->value == VAL_NONE)
1036 if (ent->value == VAL_SUTRS)
1038 WRBUF w = wrbuf_alloc();
1040 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1041 r->u.octet_aligned->len);
1042 npr->u.databaseRecord =
1043 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1047 else if (ent->value == VAL_TEXT_XML)
1051 else if (r->which == Z_External_octet)
1055 if (yaz_marc_decode_buf(mt,
1056 (char*) r->u.octet_aligned->buf,
1057 r->u.octet_aligned->len,
1060 npr->u.databaseRecord =
1061 z_ext_record(odr_encode(), ent->value, result, rlen);
1062 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1069 yaz_iconv_close(cd);
1070 yaz_marc_destroy(mt);
1074 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1075 const char *backend_charset)
1078 if (!backend_charset)
1079 backend_charset = "MARC-8";
1080 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1081 yaz_marc_t mt = yaz_marc_create();
1082 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1083 yaz_marc_iconv(mt, cd);
1084 for (i = 0; i < p->num_records; i++)
1086 Z_NamePlusRecord *npr = p->records[i];
1087 if (npr->which == Z_NamePlusRecord_databaseRecord)
1089 Z_External *r = npr->u.databaseRecord;
1090 if (r->which == Z_External_OPAC)
1092 WRBUF w = wrbuf_alloc();
1094 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1095 npr->u.databaseRecord = z_ext_record(
1096 odr_encode(), VAL_TEXT_XML,
1097 wrbuf_buf(w), wrbuf_len(w)
1101 else if (r->which == Z_External_octet)
1105 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1106 r->u.octet_aligned->len,
1109 npr->u.databaseRecord =
1110 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1116 yaz_iconv_close(cd);
1117 yaz_marc_destroy(mt);
1120 void Yaz_Proxy::logtime()
1122 #if HAVE_GETTIMEOFDAY
1123 struct timeval *tv = (struct timeval*) m_time_tv;
1127 gettimeofday(&tv1, 0);
1128 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1129 (tv1.tv_usec - tv->tv_usec);
1131 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1132 diff/1000000, (diff/1000)%1000);
1139 int Yaz_Proxy::send_http_response(int code)
1141 ODR o = odr_encode();
1142 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1143 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1145 hres->version = odr_strdup(o, m_http_version);
1146 if (m_http_keepalive)
1147 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1151 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1153 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1157 int r = send_GDU(gdu, &len);
1158 m_bytes_sent += len;
1159 m_bw_stat.add_bytes(len);
1162 recv_GDU_more(true);
1167 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1169 ODR o = odr_encode();
1170 const char *ctype = "text/xml";
1171 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1172 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1174 hres->version = odr_strdup(o, m_http_version);
1175 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1176 if (m_http_keepalive)
1177 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1180 if (http_code == 401)
1181 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1183 static Z_SOAP_Handler soap_handlers[2] = {
1185 {"http://www.loc.gov/zing/srw/", 0,
1186 (Z_SOAP_fun) yaz_srw_codec},
1191 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1192 soap_package->which = Z_SOAP_generic;
1193 soap_package->u.generic =
1194 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1195 soap_package->u.generic->no = 0;
1196 soap_package->u.generic->ns = soap_handlers[0].ns;
1197 soap_package->u.generic->p = (void *) srw_pdu;
1198 soap_package->ns = m_soap_ns;
1199 z_soap_codec_enc_xsl(o, &soap_package,
1200 &hres->content_buf, &hres->content_len,
1201 soap_handlers, 0, m_s2z_stylesheet);
1202 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1204 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1208 int r = send_GDU(gdu, &len);
1209 m_bytes_sent += len;
1210 m_bw_stat.add_bytes(len);
1213 recv_GDU_more(true);
1218 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1220 ODR o = odr_encode();
1221 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1222 odr_malloc(o, sizeof(*diagnostic));
1223 int num_diagnostic = 1;
1224 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1225 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1228 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1229 Z_DefaultDiagFormat *ddf)
1231 int bib1_code = *ddf->condition;
1232 if (bib1_code == 109)
1234 srw_res->num_diagnostics = 1;
1235 srw_res->diagnostics = (Z_SRW_diagnostic *)
1236 odr_malloc(o, sizeof(*srw_res->diagnostics));
1237 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1238 yaz_diag_bib1_to_srw(*ddf->condition),
1243 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1245 ODR o = odr_encode();
1246 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1247 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1249 srw_res->numberOfRecords = odr_intdup (o, hits);
1250 if (records && records->which == Z_Records_DBOSD)
1252 srw_res->num_records =
1253 records->u.databaseOrSurDiagnostics->num_records;
1255 srw_res->records = (Z_SRW_record *)
1256 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1257 for (i = 0; i < srw_res->num_records; i++)
1259 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1260 if (npr->which != Z_NamePlusRecord_databaseRecord)
1262 srw_res->records[i].recordSchema = "diagnostic";
1263 srw_res->records[i].recordPacking = m_s2z_packing;
1264 srw_res->records[i].recordData_buf = "67";
1265 srw_res->records[i].recordData_len = 2;
1266 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1269 Z_External *r = npr->u.databaseRecord;
1270 oident *ent = oid_getentbyoid(r->direct_reference);
1271 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1273 srw_res->records[i].recordSchema = m_schema;
1274 srw_res->records[i].recordPacking = m_s2z_packing;
1275 srw_res->records[i].recordData_buf = (char*)
1276 r->u.octet_aligned->buf;
1277 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1278 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1282 srw_res->records[i].recordSchema = "diagnostic";
1283 srw_res->records[i].recordPacking = m_s2z_packing;
1284 srw_res->records[i].recordData_buf = "67";
1285 srw_res->records[i].recordData_len = 2;
1286 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1290 if (records && records->which == Z_Records_NSD)
1293 http_code = z_to_srw_diag(odr_encode(), srw_res,
1294 records->u.nonSurrogateDiagnostic);
1296 return send_http_response(http_code);
1298 return send_srw_response(srw_pdu);
1302 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1303 int num_diagnostics, int http_code /* = 200 */)
1305 ODR o = odr_encode();
1306 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1307 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1309 srw_res->num_diagnostics = num_diagnostics;
1310 srw_res->diagnostics = diagnostics;
1311 return send_srw_response(srw_pdu, http_code);
1314 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1315 int num_diagnostics)
1317 Yaz_ProxyConfig *cfg = check_reconfigure();
1321 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1322 m_s2z_database, &len);
1325 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1326 Z_SRW_explainResponse *er = res->u.explain_response;
1328 er->record.recordData_buf = b;
1329 er->record.recordData_len = len;
1330 er->record.recordPacking = m_s2z_packing;
1331 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1333 er->diagnostics = diagnostics;
1334 er->num_diagnostics = num_diagnostics;
1335 return send_srw_response(res);
1338 return send_http_response(404);
1341 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1345 if (apdu->which == Z_APDU_initResponse)
1347 Z_InitResponse *res = apdu->u.initResponse;
1348 if (*res->result == 0)
1350 send_to_srw_client_error(3, 0);
1352 else if (!m_s2z_search_apdu)
1354 send_srw_explain_response(0, 0);
1358 handle_incoming_Z_PDU(m_s2z_search_apdu);
1361 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1363 m_s2z_search_apdu = 0;
1364 Z_SearchResponse *res = apdu->u.searchResponse;
1365 m_s2z_hit_count = *res->resultCount;
1366 if (res->records && res->records->which == Z_Records_NSD)
1368 send_to_srw_client_ok(0, res->records, 1);
1370 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1373 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1375 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1377 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1379 *pr->numberOfRecordsRequested =
1380 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1382 handle_incoming_Z_PDU(m_s2z_present_apdu);
1386 m_s2z_present_apdu = 0;
1387 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1390 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1393 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1395 m_s2z_present_apdu = 0;
1396 Z_PresentResponse *res = apdu->u.presentResponse;
1397 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1403 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1404 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1406 int r = send_Z_PDU(apdu, &len);
1407 m_bytes_sent += len;
1408 m_bw_stat.add_bytes(len);
1415 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1417 int kill_session = 0;
1418 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1421 *new_id = m_referenceId;
1423 if (apdu->which == Z_APDU_searchResponse)
1425 Z_SearchResponse *sr = apdu->u.searchResponse;
1426 Z_Records *p = sr->records;
1427 if (p && p->which == Z_Records_NSD)
1429 Z_DiagRec dr, *dr_p = &dr;
1430 dr.which = Z_DiagRec_defaultFormat;
1431 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1433 *sr->searchStatus = 0;
1434 display_diagrecs(&dr_p, 1);
1438 if (p && p->which == Z_Records_DBOSD)
1442 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1445 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1446 if (m_marcxml_mode == marcxml)
1447 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1450 convert_records_charset(p->u.databaseOrSurDiagnostics,
1452 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1456 if (sr->resultCount)
1458 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1460 if (*sr->resultCount < 0)
1462 m_flag_invalid_session = 1;
1465 *sr->searchStatus = 0;
1467 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1468 *sr->resultCount = 0;
1473 else if (apdu->which == Z_APDU_presentResponse)
1475 Z_PresentResponse *sr = apdu->u.presentResponse;
1476 Z_Records *p = sr->records;
1477 if (p && p->which == Z_Records_NSD)
1479 Z_DiagRec dr, *dr_p = &dr;
1480 dr.which = Z_DiagRec_defaultFormat;
1481 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1482 if (*sr->presentStatus == Z_PresentStatus_success)
1483 *sr->presentStatus = Z_PresentStatus_failure;
1484 display_diagrecs(&dr_p, 1);
1486 if (p && p->which == Z_Records_DBOSD)
1490 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1493 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1494 if (m_marcxml_mode == marcxml)
1495 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1498 convert_records_charset(p->u.databaseOrSurDiagnostics,
1500 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1504 else if (apdu->which == Z_APDU_initResponse)
1506 //Get and check negotiation record
1507 //from init response.
1508 handle_charset_lang_negotiation(apdu);
1510 if (m_initRequest_options)
1513 (Odr_bitmask *)odr_malloc(odr_encode(),
1514 sizeof(Odr_bitmask));
1515 ODR_MASK_ZERO(nopt);
1518 for (i = 0; i<24; i++)
1519 if (ODR_MASK_GET(m_initRequest_options, i) &&
1520 ODR_MASK_GET(apdu->u.initResponse->options, i))
1521 ODR_MASK_SET(nopt, i);
1522 apdu->u.initResponse->options = nopt;
1524 if (m_initRequest_version)
1526 Z_ProtocolVersion *nopt =
1527 (Odr_bitmask *)odr_malloc(odr_encode(),
1528 sizeof(Odr_bitmask));
1529 ODR_MASK_ZERO(nopt);
1532 for (i = 0; i<8; i++)
1533 if (ODR_MASK_GET(m_initRequest_version, i) &&
1534 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1535 ODR_MASK_SET(nopt, i);
1536 apdu->u.initResponse->protocolVersion = nopt;
1538 apdu->u.initResponse->preferredMessageSize =
1539 odr_intdup(odr_encode(),
1540 m_client->m_initResponse_preferredMessageSize >
1541 m_initRequest_preferredMessageSize ?
1542 m_initRequest_preferredMessageSize :
1543 m_client->m_initResponse_preferredMessageSize);
1544 apdu->u.initResponse->maximumRecordSize =
1545 odr_intdup(odr_encode(),
1546 m_client->m_initResponse_maximumRecordSize >
1547 m_initRequest_maximumRecordSize ?
1548 m_initRequest_maximumRecordSize :
1549 m_client->m_initResponse_maximumRecordSize);
1552 int r = send_PDU_convert(apdu);
1559 m_parent->pre_init();
1564 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1566 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1568 odr_reset(m_idAuthentication_odr);
1569 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1570 m_idAuthentication_ber_buf =
1571 odr_getbuf(m_idAuthentication_odr,
1572 &m_idAuthentication_ber_size, 0);
1575 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1580 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1582 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1583 ODR odr = odr_createmem(ODR_ENCODE);
1585 z_IdAuthentication(odr, &t, 1, 0);
1587 char *buf = odr_getbuf(odr, &sz, 0);
1588 if (buf && m_idAuthentication_ber_buf
1589 && sz == m_idAuthentication_ber_size
1590 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1596 if (!buf && !m_idAuthentication_ber_buf)
1601 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1604 const char *apdu_name_tmp = apdu_name(apdu);
1605 int r = send_Z_PDU(apdu, &len);
1606 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1607 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1609 apdu_name_tmp, get_hostname(), len);
1610 m_bytes_sent += len;
1614 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1616 if (apdu->which == Z_APDU_presentRequest)
1618 Z_PresentRequest *pr = apdu->u.presentRequest;
1619 int toget = *pr->numberOfRecordsRequested;
1620 int start = *pr->resultSetStartPoint;
1622 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1623 pr->resultSetId, start, toget);
1625 if (*m_parent->m_optimize == '0')
1628 if (!m_client->m_last_resultSetId)
1630 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1631 new_apdu->u.presentResponse->records =
1632 create_nonSurrogateDiagnostics(odr_encode(), 30,
1634 send_to_client(new_apdu);
1637 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1639 if (start+toget-1 > m_client->m_last_resultCount)
1641 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1642 new_apdu->u.presentResponse->records =
1643 create_nonSurrogateDiagnostics(odr_encode(), 13, 0);
1644 send_to_client(new_apdu);
1647 Z_NamePlusRecordList *npr;
1649 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1650 m_session_str, start, toget, yaz_z3950oid_to_str(
1651 pr->preferredRecordSyntax, &oclass));
1653 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1654 pr->preferredRecordSyntax,
1655 pr->recordComposition))
1657 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1659 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1660 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1662 new_apdu->u.presentResponse->numberOfRecordsReturned
1663 = odr_intdup(odr_encode(), toget);
1665 new_apdu->u.presentResponse->records = (Z_Records*)
1666 odr_malloc(odr_encode(), sizeof(Z_Records));
1667 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1668 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1669 new_apdu->u.presentResponse->nextResultSetPosition =
1670 odr_intdup(odr_encode(), start+toget);
1672 send_to_client(new_apdu);
1678 if (apdu->which != Z_APDU_searchRequest)
1680 Z_SearchRequest *sr = apdu->u.searchRequest;
1681 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1682 Yaz_Z_Databases this_databases;
1684 this_databases.set(sr->num_databaseNames, (const char **)
1687 this_query->set_Z_Query(sr->query);
1689 char query_str[120];
1690 this_query->print(query_str, sizeof(query_str)-1);
1691 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1693 if (*m_parent->m_optimize != '0' &&
1694 m_client->m_last_ok && m_client->m_last_query &&
1695 m_client->m_last_query->match(this_query) &&
1696 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1697 m_client->m_last_databases.match(this_databases))
1700 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1701 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1703 Z_NamePlusRecordList *npr;
1704 int toget = *sr->mediumSetPresentNumber;
1705 Z_RecordComposition *comp = 0;
1707 if (toget > m_client->m_last_resultCount)
1708 toget = m_client->m_last_resultCount;
1710 if (sr->mediumSetElementSetNames)
1712 comp = (Z_RecordComposition *)
1713 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1714 comp->which = Z_RecordComp_simple;
1715 comp->u.simple = sr->mediumSetElementSetNames;
1718 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1719 sr->preferredRecordSyntax, comp))
1721 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1723 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1724 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1725 new_apdu->u.searchResponse->resultCount =
1726 &m_client->m_last_resultCount;
1728 new_apdu->u.searchResponse->numberOfRecordsReturned
1729 = odr_intdup(odr_encode(), toget);
1731 new_apdu->u.searchResponse->presentStatus =
1732 odr_intdup(odr_encode(), Z_PresentStatus_success);
1733 new_apdu->u.searchResponse->records = (Z_Records*)
1734 odr_malloc(odr_encode(), sizeof(Z_Records));
1735 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1736 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1737 new_apdu->u.searchResponse->nextResultSetPosition =
1738 odr_intdup(odr_encode(), toget+1);
1739 send_to_client(new_apdu);
1745 // send present request (medium size)
1746 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1749 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1750 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1751 pr->referenceId = sr->referenceId;
1752 pr->resultSetId = sr->resultSetName;
1753 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1754 *pr->numberOfRecordsRequested = toget;
1755 pr->recordComposition = comp;
1756 m_client->m_sr_transform = 1;
1760 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1761 m_client->m_last_resultCount <= 0)
1763 // large set. Return pseudo-search response immediately
1764 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1766 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1767 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1768 new_apdu->u.searchResponse->resultCount =
1769 &m_client->m_last_resultCount;
1770 send_to_client(new_apdu);
1775 Z_NamePlusRecordList *npr;
1776 int toget = m_client->m_last_resultCount;
1777 Z_RecordComposition *comp = 0;
1779 // send a present request (small set)
1781 if (sr->smallSetElementSetNames)
1783 comp = (Z_RecordComposition *)
1784 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1785 comp->which = Z_RecordComp_simple;
1786 comp->u.simple = sr->smallSetElementSetNames;
1789 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1790 sr->preferredRecordSyntax, comp))
1792 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1794 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1795 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1796 new_apdu->u.searchResponse->resultCount =
1797 &m_client->m_last_resultCount;
1799 new_apdu->u.searchResponse->numberOfRecordsReturned
1800 = odr_intdup(odr_encode(), toget);
1802 new_apdu->u.searchResponse->presentStatus =
1803 odr_intdup(odr_encode(), Z_PresentStatus_success);
1804 new_apdu->u.searchResponse->records = (Z_Records*)
1805 odr_malloc(odr_encode(), sizeof(Z_Records));
1806 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1807 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1808 new_apdu->u.searchResponse->nextResultSetPosition =
1809 odr_intdup(odr_encode(), toget+1);
1810 send_to_client(new_apdu);
1815 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1817 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1818 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1819 pr->referenceId = sr->referenceId;
1820 pr->resultSetId = sr->resultSetName;
1821 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1822 *pr->numberOfRecordsRequested = toget;
1823 pr->recordComposition = comp;
1824 m_client->m_sr_transform = 1;
1829 else // query doesn't match
1831 delete m_client->m_last_query;
1832 m_client->m_last_query = this_query;
1833 m_client->m_last_ok = 0;
1834 m_client->m_cache.clear();
1835 m_client->m_resultSetStartPoint = 0;
1837 xfree (m_client->m_last_resultSetId);
1838 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1840 m_client->m_last_databases.set(sr->num_databaseNames,
1841 (const char **) sr->databaseNames);
1847 void Yaz_Proxy::inc_request_no()
1849 char *cp = m_session_str + strlen(m_session_str)-1;
1852 while (*cp && *cp != ' ')
1855 sprintf(cp+1, "%d ", m_request_no);
1858 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1862 m_bytes_recv += len;
1864 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1865 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1866 m_session_str, gdu_name(apdu), len);
1868 #if HAVE_GETTIMEOFDAY
1869 gettimeofday((struct timeval *) m_time_tv, 0);
1871 m_bw_stat.add_bytes(len);
1872 m_pdu_stat.add_bytes(1);
1874 GDU *gdu = new GDU(apdu);
1875 m_in_queue.enqueue(gdu);
1877 recv_GDU_more(false);
1880 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1882 int reduce = m_initial_reduce; // initial reduce from connect phase..
1883 m_initial_reduce = 0; // reset it..
1885 int bw_total = m_bw_stat.get_total();
1886 int pdu_total = m_pdu_stat.get_total();
1887 int search_total = m_search_stat.get_total();
1889 assert(m_timeout_mode == timeout_busy);
1890 assert(m_timeout_gdu == 0);
1893 reduce += search_total / m_search_max;
1895 reduce += (bw_total/m_bw_max);
1898 if (pdu_total > m_pdu_max)
1900 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
1901 reduce = (reduce > nreduce) ? reduce : nreduce;
1907 /* uncomment to force a big reduce */
1908 m_timeout_mode = timeout_reduce;
1909 m_timeout_gdu = gdu;
1910 timeout(3); // call us reduce seconds later
1915 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
1916 m_session_str, reduce, bw_total, pdu_total, search_total,
1917 m_bw_max, m_pdu_max, m_search_max);
1919 m_timeout_mode = timeout_reduce;
1920 m_timeout_gdu = gdu;
1921 timeout(reduce); // call us reduce seconds later
1924 recv_GDU_normal(gdu);
1927 void Yaz_Proxy::recv_GDU_more(bool normal)
1930 if (normal && m_timeout_mode == timeout_busy)
1931 m_timeout_mode = timeout_normal;
1932 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
1934 m_timeout_mode = timeout_busy;
1939 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
1942 gdu->move_away_gdu(odr_decode(), &apdu);
1945 if (apdu->which == Z_GDU_Z3950)
1946 handle_incoming_Z_PDU(apdu->u.z3950);
1947 else if (apdu->which == Z_GDU_HTTP_Request)
1948 handle_incoming_HTTP(apdu->u.HTTP_Request);
1951 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
1953 if (m_max_record_retrieve)
1955 if (apdu->which == Z_APDU_presentRequest)
1957 Z_PresentRequest *pr = apdu->u.presentRequest;
1958 if (pr->numberOfRecordsRequested &&
1959 *pr->numberOfRecordsRequested > m_max_record_retrieve)
1960 *pr->numberOfRecordsRequested = m_max_record_retrieve;
1965 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
1967 if (apdu->which == Z_APDU_initRequest)
1969 if (m_initRequest_options &&
1970 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
1971 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
1973 // There is no negotiation proposal from
1974 // client's side. OK. The proxy negotiation
1976 Z_InitRequest *initRequest = apdu->u.initRequest;
1977 Z_OtherInformation **otherInfo;
1978 Z_OtherInformationUnit *oi;
1979 get_otherInfoAPDU(apdu, &otherInfo);
1980 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
1983 ODR_MASK_SET(initRequest->options,
1984 Z_Options_negotiationModel);
1985 oi->which = Z_OtherInfo_externallyDefinedInfo;
1986 oi->information.externallyDefinedInfo =
1987 yaz_set_proposal_charneg(odr_encode(),
1988 (const char**)&m_proxy_negotiation_charset,
1989 m_proxy_negotiation_charset ? 1:0,
1990 (const char**)&m_proxy_negotiation_lang,
1991 m_proxy_negotiation_lang ? 1:0,
1995 else if (m_initRequest_options &&
1996 ODR_MASK_GET(m_initRequest_options,
1997 Z_Options_negotiationModel) &&
1998 m_charset_converter->get_target_query_charset())
2000 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2002 m_charset_converter->get_target_query_charset());
2003 Z_InitRequest *initRequest = apdu->u.initRequest;
2004 Z_CharSetandLanguageNegotiation *negotiation =
2005 yaz_get_charneg_record (initRequest->otherInfo);
2007 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2009 NMEM nmem = nmem_create();
2010 char **charsets = 0;
2011 int num_charsets = 0;
2015 yaz_get_proposal_charneg (nmem, negotiation,
2016 &charsets, &num_charsets,
2017 &langs, &num_langs, &selected);
2019 for (i = 0; i<num_charsets; i++)
2020 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2022 for (i = 0; i<num_langs; i++)
2023 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2026 const char *t_charset =
2027 m_charset_converter->get_target_query_charset();
2028 // sweep through charsets and pick the first supported
2030 for (i = 0; i<num_charsets; i++)
2032 const char *c_charset = charsets[i];
2033 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2036 if (i != num_charsets)
2038 // got one .. set up ODR for reverse direction
2039 const char *c_charset = charsets[i];
2040 odr_set_charset(odr_encode(), c_charset, t_charset);
2041 m_charset_converter->set_client_query_charset(c_charset);
2042 m_charset_converter->set_client_charset_selected(selected);
2045 ODR_MASK_CLEAR(m_initRequest_options,
2046 Z_Options_negotiationModel);
2047 yaz_del_charneg_record(&initRequest->otherInfo);
2051 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2055 else if (m_charset_converter->get_target_query_charset() &&
2056 m_proxy_negotiation_default_charset)
2058 m_charset_converter->
2059 set_client_query_charset(m_proxy_negotiation_default_charset);
2062 else if (apdu->which == Z_APDU_initResponse)
2064 Z_InitResponse *initResponse = apdu->u.initResponse;
2065 Z_OtherInformation **otherInfo;
2066 get_otherInfoAPDU(apdu, &otherInfo);
2068 Z_CharSetandLanguageNegotiation *charneg = 0;
2070 if (otherInfo && *otherInfo &&
2071 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2072 && (charneg = yaz_get_charneg_record(*otherInfo)))
2078 yaz_get_response_charneg(m_referenceId_mem, charneg,
2079 &charset, &lang, &selected);
2081 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2082 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2084 if (m_initRequest_options &&
2085 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2087 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2090 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2092 // negotiation-charset, negotiation-lang
2093 // elements of config file in use.
2095 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2098 // clear negotiation option.
2099 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2101 // Delete negotiation (charneg-3) entry.
2102 yaz_del_charneg_record(otherInfo);
2107 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2109 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2112 else if (m_charset_converter->get_client_query_charset())
2114 Z_OtherInformation **otherInfo;
2115 Z_OtherInformationUnit *oi;
2116 get_otherInfoAPDU(apdu, &otherInfo);
2117 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2120 ODR_MASK_SET(initResponse->options,
2121 Z_Options_negotiationModel);
2122 if (m_initRequest_options)
2123 ODR_MASK_SET(m_initRequest_options,
2124 Z_Options_negotiationModel);
2126 oi->which = Z_OtherInfo_externallyDefinedInfo;
2127 oi->information.externallyDefinedInfo =
2128 yaz_set_response_charneg(
2130 m_charset_converter->get_client_query_charset(),
2132 m_charset_converter->get_client_charset_selected());
2139 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2141 const char *addinfo)
2143 Z_Records *rec = (Z_Records *)
2144 odr_malloc (odr, sizeof(*rec));
2146 odr_malloc (odr, sizeof(*err));
2147 Z_DiagRec *drec = (Z_DiagRec *)
2148 odr_malloc (odr, sizeof(*drec));
2149 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2150 odr_malloc (odr, sizeof(*dr));
2152 rec->which = Z_Records_NSD;
2153 rec->u.nonSurrogateDiagnostic = dr;
2154 dr->diagnosticSetId =
2155 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2156 dr->condition = err;
2157 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2158 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2162 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2164 if (apdu->which == Z_APDU_searchRequest &&
2165 apdu->u.searchRequest->query &&
2166 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2167 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2169 Z_RPNQuery *rpnquery = 0;
2170 Z_SearchRequest *sr = apdu->u.searchRequest;
2173 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2174 sr->query->u.type_104->u.cql);
2176 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2177 &rpnquery, odr_encode(),
2180 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2183 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2184 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2186 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2187 new_apdu->u.searchResponse->records =
2188 create_nonSurrogateDiagnostics(odr_encode(),
2189 yaz_diag_srw_to_bib1(r),
2191 *new_apdu->u.searchResponse->searchStatus = 0;
2193 send_to_client(new_apdu);
2199 sr->query->which = Z_Query_type_1;
2200 sr->query->u.type_1 = rpnquery;
2207 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2209 if (apdu->which == Z_APDU_searchRequest &&
2210 apdu->u.searchRequest->query)
2212 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2213 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2216 m_charset_converter->set_client_query_charset("UTF-8");
2217 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2218 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2225 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2227 if (apdu->which == Z_APDU_searchRequest)
2229 Z_SearchRequest *sr = apdu->u.searchRequest;
2233 Yaz_ProxyConfig *cfg = check_reconfigure();
2235 err = cfg->check_query(odr_encode(), m_default_target,
2236 sr->query, &addinfo);
2239 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2241 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2242 new_apdu->u.searchResponse->records =
2243 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2244 *new_apdu->u.searchResponse->searchStatus = 0;
2246 send_to_client(new_apdu);
2254 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2256 if (apdu->which != Z_APDU_initRequest)
2257 return 1; // pass if no init request
2258 Z_InitRequest *req = apdu->u.initRequest;
2260 Yaz_ProxyConfig *cfg = check_reconfigure();
2262 return 1; // pass if no config
2265 if (req->idAuthentication == 0)
2267 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2270 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2272 ret = cfg->client_authentication(
2274 req->idAuthentication->u.idPass->userId,
2275 req->idAuthentication->u.idPass->groupId,
2276 req->idAuthentication->u.idPass->password,
2279 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2281 char user[64], pass[64];
2284 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2285 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2289 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2294 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2296 m_marcxml_mode = none;
2297 if (apdu->which == Z_APDU_searchRequest)
2299 Z_SearchRequest *sr = apdu->u.searchRequest;
2302 Yaz_ProxyConfig *cfg = check_reconfigure();
2304 Z_RecordComposition rc_temp, *rc = 0;
2305 if (sr->smallSetElementSetNames)
2307 rc_temp.which = Z_RecordComp_simple;
2308 rc_temp.u.simple = sr->smallSetElementSetNames;
2312 if (sr->preferredRecordSyntax)
2315 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2316 m_frontend_type = ent->value;
2319 m_frontend_type = VAL_NONE;
2321 char *stylesheet_name = 0;
2323 err = cfg->check_syntax(odr_encode(),
2325 sr->preferredRecordSyntax, rc,
2326 &addinfo, &stylesheet_name, &m_schema,
2327 &m_backend_type, &m_backend_charset,
2328 &m_usemarcon_ini_stage1,
2329 &m_usemarcon_ini_stage2);
2330 if (stylesheet_name)
2332 m_parent->low_socket_close();
2335 if (m_stylesheet_xsp)
2336 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2337 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2340 m_stylesheet_offset = 0;
2341 xfree(stylesheet_name);
2343 m_parent->low_socket_open();
2347 sr->smallSetElementSetNames = 0;
2348 sr->mediumSetElementSetNames = 0;
2349 m_marcxml_mode = marcxml;
2353 sr->preferredRecordSyntax =
2354 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2358 sr->preferredRecordSyntax =
2359 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2364 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2366 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2367 new_apdu->u.searchResponse->records =
2368 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2369 *new_apdu->u.searchResponse->searchStatus = 0;
2371 send_to_client(new_apdu);
2375 else if (m_backend_type)
2377 sr->preferredRecordSyntax =
2378 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2381 else if (apdu->which == Z_APDU_presentRequest)
2383 Z_PresentRequest *pr = apdu->u.presentRequest;
2386 Yaz_ProxyConfig *cfg = check_reconfigure();
2388 if (pr->preferredRecordSyntax)
2391 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2392 m_frontend_type = ent->value;
2395 m_frontend_type = VAL_NONE;
2397 char *stylesheet_name = 0;
2399 err = cfg->check_syntax(odr_encode(), m_default_target,
2400 pr->preferredRecordSyntax,
2401 pr->recordComposition,
2402 &addinfo, &stylesheet_name, &m_schema,
2403 &m_backend_type, &m_backend_charset,
2404 &m_usemarcon_ini_stage1,
2405 &m_usemarcon_ini_stage2
2407 if (stylesheet_name)
2409 m_parent->low_socket_close();
2412 if (m_stylesheet_xsp)
2413 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2414 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2417 m_stylesheet_offset = 0;
2418 xfree(stylesheet_name);
2420 m_parent->low_socket_open();
2424 pr->recordComposition = 0;
2425 m_marcxml_mode = marcxml;
2429 pr->preferredRecordSyntax =
2430 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2434 pr->preferredRecordSyntax =
2435 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2440 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2442 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2443 new_apdu->u.presentResponse->records =
2444 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2445 *new_apdu->u.presentResponse->presentStatus =
2446 Z_PresentStatus_failure;
2448 send_to_client(new_apdu);
2452 else if (m_backend_type)
2454 pr->preferredRecordSyntax =
2455 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2461 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2465 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2466 odr_malloc(o, sizeof(Z_ElementSetNames));
2467 esn->which = Z_ElementSetNames_generic;
2468 esn->u.generic = odr_strdup(o, schema);
2472 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2475 Yaz_ProxyConfig *cfg = check_reconfigure();
2477 t = cfg->get_explain_name(db, backend_db);
2479 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2486 xfree(m_default_target);
2487 m_default_target = xstrdup(t);
2491 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2494 if (strcmp(hreq->method, "GET"))
2496 if (hreq->path[0] != '/')
2498 const char *cp = hreq->path;
2501 if (*cp == '/' && strchr("/.", cp[1]))
2503 yaz_log(YLOG_LOG, "%sRejecting path %s", m_session_str,
2510 Yaz_ProxyConfig *cfg = check_reconfigure();
2512 if (!cfg->get_file_access_info(hreq->path+1))
2515 const char *fname = hreq->path+1;
2516 if (stat(fname, &sbuf))
2518 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2522 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2524 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2527 if (sbuf.st_size > (off_t) 1000000)
2529 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2534 ODR o = odr_encode();
2536 const char *ctype = cfg->check_mime_type(fname);
2537 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2538 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2540 hres->version = odr_strdup(o, m_http_version);
2541 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2542 if (m_http_keepalive)
2543 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2547 hres->content_len = sbuf.st_size;
2548 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2549 FILE *f = fopen(fname, "rb");
2552 fread(hres->content_buf, 1, hres->content_len, f);
2559 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2561 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2565 send_GDU(gdu, &len);
2566 recv_GDU_more(true);
2570 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2574 odr_destroy(m_s2z_odr_init);
2577 if (m_s2z_odr_search)
2579 odr_destroy(m_s2z_odr_search);
2580 m_s2z_odr_search = 0;
2583 m_http_keepalive = 0;
2585 if (!strcmp(hreq->version, "1.0"))
2587 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2588 if (v && !strcmp(v, "Keep-Alive"))
2589 m_http_keepalive = 1;
2591 m_http_keepalive = 0;
2592 m_http_version = "1.0";
2596 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2597 if (v && !strcmp(v, "close"))
2598 m_http_keepalive = 0;
2600 m_http_keepalive = 1;
2601 m_http_version = "1.1";
2604 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2605 char authorization_str[255];
2606 *authorization_str = '\0';
2607 if (a && strncasecmp(a, "Basic ", 6) == 0)
2608 base64_decode(a + 6, authorization_str, 254);
2610 Z_SRW_PDU *srw_pdu = 0;
2611 Z_SOAP *soap_package = 0;
2613 Z_SRW_diagnostic *diagnostic = 0;
2614 int num_diagnostic = 0;
2616 if (file_access(hreq))
2620 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2622 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2623 &charset, &diagnostic, &num_diagnostic) == 0)
2625 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2626 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2627 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2628 m_s2z_init_apdu = 0;
2629 m_s2z_search_apdu = 0;
2630 m_s2z_present_apdu = 0;
2632 m_s2z_stylesheet = 0;
2634 Z_IdAuthentication *auth = NULL;
2635 if (*authorization_str)
2637 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2638 auth->which = Z_IdAuthentication_idPass;
2639 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2640 auth->u.idPass->groupId = NULL;
2641 char *p = strchr(authorization_str, ':');
2646 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2648 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2651 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2654 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2656 const char *backend_db = srw_req->database;
2657 srw_get_client(srw_req->database, &backend_db);
2659 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2660 // recordXPath unsupported.
2661 if (srw_req->recordXPath)
2663 yaz_add_srw_diagnostic(odr_decode(),
2664 &diagnostic, &num_diagnostic,
2668 if (srw_req->sort_type != Z_SRW_sort_type_none)
2670 yaz_add_srw_diagnostic(odr_decode(),
2671 &diagnostic, &num_diagnostic,
2675 if (srw_req->stylesheet)
2677 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2679 // set packing for response records ..
2680 if (srw_req->recordPacking &&
2681 !strcmp(srw_req->recordPacking, "xml"))
2682 m_s2z_packing = Z_SRW_recordPacking_XML;
2684 m_s2z_packing = Z_SRW_recordPacking_string;
2688 Z_SRW_PDU *srw_pdu =
2689 yaz_srw_get(odr_encode(),
2690 Z_SRW_searchRetrieve_response);
2691 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2693 srw_res->diagnostics = diagnostic;
2694 srw_res->num_diagnostics = num_diagnostic;
2695 send_srw_response(srw_pdu);
2699 // prepare search PDU
2700 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2701 Z_APDU_searchRequest);
2702 Z_SearchRequest *z_searchRequest =
2703 m_s2z_search_apdu->u.searchRequest;
2705 z_searchRequest->num_databaseNames = 1;
2706 z_searchRequest->databaseNames = (char**)
2707 odr_malloc(m_s2z_odr_search, sizeof(char *));
2708 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2711 // query transformation
2712 Z_Query *query = (Z_Query *)
2713 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2714 z_searchRequest->query = query;
2716 if (srw_req->query_type == Z_SRW_query_type_cql)
2718 Z_External *ext = (Z_External *)
2719 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2720 ext->direct_reference =
2721 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2722 ext->indirect_reference = 0;
2723 ext->descriptor = 0;
2724 ext->which = Z_External_CQL;
2725 ext->u.cql = srw_req->query.cql;
2727 query->which = Z_Query_type_104;
2728 query->u.type_104 = ext;
2730 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2732 Z_RPNQuery *RPNquery;
2733 YAZ_PQF_Parser pqf_parser;
2735 pqf_parser = yaz_pqf_create ();
2737 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2738 srw_req->query.pqf);
2741 const char *pqf_msg;
2743 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2745 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2746 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2748 send_to_srw_client_error(10, 0);
2751 query->which = Z_Query_type_1;
2752 query->u.type_1 = RPNquery;
2754 yaz_pqf_destroy (pqf_parser);
2758 send_to_srw_client_error(7, "query");
2763 m_s2z_present_apdu = 0;
2765 if (srw_req->maximumRecords)
2766 max = *srw_req->maximumRecords;
2768 if (srw_req->startRecord)
2769 start = *srw_req->startRecord;
2772 // Some backend, such as Voyager doesn't honor piggyback
2773 // So we use present always (0 &&).
2774 if (0 && start <= 1) // Z39.50 piggyback
2776 *z_searchRequest->smallSetUpperBound = max;
2777 *z_searchRequest->mediumSetPresentNumber = max;
2778 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2780 z_searchRequest->preferredRecordSyntax =
2781 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2783 if (srw_req->recordSchema)
2785 z_searchRequest->smallSetElementSetNames =
2786 z_searchRequest->mediumSetElementSetNames =
2787 mk_esn_from_schema(m_s2z_odr_search,
2788 srw_req->recordSchema);
2791 else // Z39.50 present
2793 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2794 Z_APDU_presentRequest);
2795 Z_PresentRequest *z_presentRequest =
2796 m_s2z_present_apdu->u.presentRequest;
2797 *z_presentRequest->resultSetStartPoint = start;
2798 *z_presentRequest->numberOfRecordsRequested = max;
2799 z_presentRequest->preferredRecordSyntax =
2800 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2802 if (srw_req->recordSchema)
2804 z_presentRequest->recordComposition =
2805 (Z_RecordComposition *)
2806 odr_malloc(m_s2z_odr_search,
2807 sizeof(Z_RecordComposition));
2808 z_presentRequest->recordComposition->which =
2809 Z_RecordComp_simple;
2810 z_presentRequest->recordComposition->u.simple =
2811 mk_esn_from_schema(m_s2z_odr_search,
2812 srw_req->recordSchema);
2818 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2819 Z_APDU_initRequest);
2821 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2823 // prevent m_initRequest_apdu memory from being grabbed
2824 // in Yaz_Proxy::handle_incoming_Z_PDU
2825 m_initRequest_apdu = m_s2z_init_apdu;
2826 handle_incoming_Z_PDU(m_s2z_init_apdu);
2831 handle_incoming_Z_PDU(m_s2z_search_apdu);
2835 else if (srw_pdu->which == Z_SRW_explain_request)
2837 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2839 const char *backend_db = srw_req->database;
2840 srw_get_client(srw_req->database, &backend_db);
2842 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2845 if (srw_req->stylesheet)
2847 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2849 if (srw_req->recordPacking &&
2850 !strcmp(srw_req->recordPacking, "xml"))
2851 m_s2z_packing = Z_SRW_recordPacking_XML;
2853 m_s2z_packing = Z_SRW_recordPacking_string;
2857 send_srw_explain_response(diagnostic, num_diagnostic);
2863 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2864 Z_APDU_initRequest);
2866 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2868 // prevent m_initRequest_apdu memory from being grabbed
2869 // in Yaz_Proxy::handle_incoming_Z_PDU
2870 m_initRequest_apdu = m_s2z_init_apdu;
2871 handle_incoming_Z_PDU(m_s2z_init_apdu);
2874 send_srw_explain_response(0, 0);
2877 else if (srw_pdu->which == Z_SRW_scan_request)
2879 m_s2z_database = odr_strdup(m_s2z_odr_init,
2880 srw_pdu->u.scan_request->database);
2882 yaz_add_srw_diagnostic(odr_decode(),
2883 &diagnostic, &num_diagnostic,
2885 Z_SRW_PDU *srw_pdu =
2886 yaz_srw_get(odr_encode(),
2887 Z_SRW_scan_response);
2888 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
2890 srw_res->diagnostics = diagnostic;
2891 srw_res->num_diagnostics = num_diagnostic;
2892 send_srw_response(srw_pdu);
2899 send_to_srw_client_error(4, 0);
2902 send_http_response(400);
2905 void Yaz_Proxy::handle_init(Z_APDU *apdu)
2908 Z_OtherInformation **oi;
2909 get_otherInfoAPDU(apdu, &oi);
2911 if (apdu->u.initRequest->implementationId)
2912 yaz_log(YLOG_LOG, "%simplementationId: %s",
2913 m_session_str, apdu->u.initRequest->implementationId);
2914 if (apdu->u.initRequest->implementationName)
2915 yaz_log(YLOG_LOG, "%simplementationName: %s",
2916 m_session_str, apdu->u.initRequest->implementationName);
2917 if (apdu->u.initRequest->implementationVersion)
2918 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
2919 m_session_str, apdu->u.initRequest->implementationVersion);
2920 if (m_initRequest_apdu == 0)
2922 if (m_initRequest_mem)
2923 nmem_destroy(m_initRequest_mem);
2925 m_initRequest_apdu = apdu;
2926 m_initRequest_mem = odr_extract_mem(odr_decode());
2928 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
2929 preferredMessageSize;
2930 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
2931 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
2933 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
2935 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
2936 yaz_get_charneg_record(*oi);
2938 // Save proposal charsets and langs.
2939 if (ODR_MASK_GET(apdu->u.initRequest->options,
2940 Z_Options_negotiationModel)
2941 && charSetandLangRecord)
2944 yaz_get_proposal_charneg(m_referenceId_mem,
2945 charSetandLangRecord,
2946 &m_initRequest_oi_negotiation_charsets,
2947 &m_initRequest_oi_negotiation_num_charsets,
2948 &m_initRequest_oi_negotiation_langs,
2949 &m_initRequest_oi_negotiation_num_langs,
2950 &m_initRequest_oi_negotiation_selected);
2952 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
2954 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
2955 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
2956 m_initRequest_oi_negotiation_charsets[i]:"none");
2958 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
2960 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
2961 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
2962 m_initRequest_oi_negotiation_langs[i]:"none");
2964 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
2965 m_session_str, m_initRequest_oi_negotiation_selected);
2967 // save init options for the response..
2968 m_initRequest_options = apdu->u.initRequest->options;
2970 apdu->u.initRequest->options =
2971 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2972 sizeof(Odr_bitmask));
2973 ODR_MASK_ZERO(apdu->u.initRequest->options);
2975 for (i = 0; i<= 24; i++)
2976 ODR_MASK_SET(apdu->u.initRequest->options, i);
2977 // check negotiation option
2978 if (!ODR_MASK_GET(m_initRequest_options,
2979 Z_Options_negotiationModel))
2981 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2982 Z_Options_negotiationModel);
2984 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2985 Z_Options_concurrentOperations);
2987 m_initRequest_version = apdu->u.initRequest->protocolVersion;
2988 apdu->u.initRequest->protocolVersion =
2989 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2990 sizeof(Odr_bitmask));
2991 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
2993 for (i = 0; i<= 8; i++)
2994 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
2996 handle_charset_lang_negotiation(apdu);
2997 if (m_client->m_init_flag)
2999 if (handle_init_response_for_invalid_session(apdu))
3001 if (m_client->m_initResponse)
3003 Z_APDU *apdu2 = m_client->m_initResponse;
3004 apdu2->u.initResponse->otherInfo = 0;
3005 if (m_client->m_cookie && *m_client->m_cookie)
3006 set_otherInformationString(apdu2, VAL_COOKIE, 1,
3007 m_client->m_cookie);
3008 apdu2->u.initResponse->referenceId =
3009 apdu->u.initRequest->referenceId;
3010 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3011 apdu2->u.initResponse->protocolVersion =
3012 m_client->m_initResponse_version;
3014 handle_charset_lang_negotiation(apdu2);
3016 send_to_client(apdu2);
3017 m_timeout_mode = timeout_normal;
3021 m_client->m_init_flag = 1;
3024 Auth_Msg *m = new Auth_Msg;
3026 z_APDU(odr_encode(), &apdu, 0, "encode");
3027 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3028 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3029 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3030 odr_reset(odr_encode());
3033 m_my_thread->put(m);
3035 int ret = handle_authentication(apdu);
3036 result_authentication(apdu, ret);
3040 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3042 Z_ReferenceId **refid = get_referenceIdP(apdu);
3043 nmem_reset(m_referenceId_mem);
3044 if (refid && *refid)
3046 m_referenceId = (Z_ReferenceId *)
3047 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3048 m_referenceId->len = m_referenceId->size = (*refid)->len;
3049 m_referenceId->buf = (unsigned char *)
3050 nmem_malloc(m_referenceId_mem, (*refid)->len);
3051 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3056 if (!m_client && m_flag_invalid_session)
3058 // Got request for a session that is invalid..
3059 m_apdu_invalid_session = apdu; // save package
3060 m_mem_invalid_session = odr_extract_mem(odr_decode());
3061 apdu = m_initRequest_apdu; // but throw an init to the target
3064 if (apdu->which == Z_APDU_searchRequest)
3065 m_search_stat.add_bytes(1);
3067 // Determine our client.
3068 Z_OtherInformation **oi;
3069 get_otherInfoAPDU(apdu, &oi);
3070 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3074 { // HTTP. Send not found
3075 send_http_response(404);
3080 // Z39.50 just shutdown
3086 m_client->m_server = this;
3088 if (apdu->which == Z_APDU_initRequest)
3091 handle_incoming_Z_PDU_2(apdu);
3094 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3096 handle_max_record_retrieve(apdu);
3099 apdu = handle_syntax_validation(apdu);
3102 apdu = handle_query_transformation(apdu);
3105 apdu = handle_target_charset_conversion(apdu);
3108 apdu = handle_query_validation(apdu);
3111 apdu = result_set_optimize(apdu);
3115 m_client->timeout(m_target_idletime); // mark it active even
3116 recv_GDU_more(true);
3117 // though we didn't use it
3121 // delete other info construct completely if 0 elements
3122 Z_OtherInformation **oi;
3123 get_otherInfoAPDU(apdu, &oi);
3124 if (oi && *oi && (*oi)->num_elements == 0)
3127 if (apdu->which == Z_APDU_presentRequest &&
3128 m_client->m_resultSetStartPoint == 0)
3130 Z_PresentRequest *pr = apdu->u.presentRequest;
3131 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3132 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3134 m_client->m_resultSetStartPoint = 0;
3136 if (m_client->send_to_target(apdu) < 0)
3138 m_client->shutdown();
3141 m_client->m_waiting = 1;
3144 void Yaz_Proxy::connectNotify()
3148 void Yaz_Proxy::releaseClient()
3150 xfree(m_proxyTarget);
3152 m_flag_invalid_session = 0;
3153 // only keep if keep_alive flag is set...
3155 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3156 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3157 m_client->m_waiting == 0)
3159 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3161 m_client->get_hostname());
3162 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3163 m_session_str, m_client->m_pdu_recv,
3164 m_client->m_bytes_sent + m_client->m_bytes_recv,
3165 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3166 assert (m_client->m_waiting != 2);
3167 // Tell client (if any) that no server connection is there..
3168 m_client->m_server = 0;
3173 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3175 m_client->get_hostname());
3176 assert (m_client->m_waiting != 2);
3182 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3188 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3192 m_parent->pre_init();
3195 bool Yaz_Proxy::dec_ref(bool main_ptr)
3197 assert(m_ref_count > 0);
3202 m_main_ptr_dec = true;
3205 m_http_keepalive = 0;
3208 if (m_ref_count > 0)
3217 const char *Yaz_ProxyClient::get_session_str()
3221 return m_server->get_session_str();
3224 void Yaz_ProxyClient::shutdown()
3226 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3231 m_waiting = 1; // ensure it's released from Proxy in releaseClient
3232 m_server->dec_ref(true);
3238 void Yaz_Proxy::failNotify()
3241 yaz_log (YLOG_LOG, "%sConnection closed by client",
3246 void Yaz_Proxy::send_response_fail_client(const char *addr)
3250 Z_SRW_diagnostic *diagnostic = 0;
3251 int num_diagnostic = 0;
3253 yaz_add_srw_diagnostic(odr_encode(),
3254 &diagnostic, &num_diagnostic,
3255 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3256 if (m_s2z_search_apdu)
3257 send_srw_search_response(diagnostic, num_diagnostic);
3259 send_srw_explain_response(diagnostic, num_diagnostic);
3262 void Yaz_ProxyClient::failNotify()
3265 m_server->inc_request_no();
3266 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3267 get_session_str(), get_hostname());
3270 m_server->send_response_fail_client(get_hostname());
3274 void Yaz_ProxyClient::connectNotify()
3276 const char *s = get_session_str();
3277 const char *h = get_hostname();
3278 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3280 timeout(m_target_idletime);
3285 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3286 *the_PDU_Observable, int fd)
3288 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3291 Yaz_ProxyClient::~Yaz_ProxyClient()
3296 m_next->m_prev = m_prev;
3297 m_waiting = 2; // for debugging purposes only.
3298 odr_destroy(m_init_odr);
3299 odr_destroy(m_idAuthentication_odr);
3300 delete m_last_query;
3301 xfree (m_last_resultSetId);
3305 void Yaz_ProxyClient::pre_init_client()
3307 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3308 Z_InitRequest *req = apdu->u.initRequest;
3311 for (i = 0; i<= 24; i++)
3312 ODR_MASK_SET(req->options, i);
3313 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3314 Z_Options_negotiationModel);
3315 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3316 Z_Options_concurrentOperations);
3317 for (i = 0; i<= 10; i++)
3318 ODR_MASK_SET(req->protocolVersion, i);
3320 if (send_to_target(apdu) < 0)
3331 void Yaz_Proxy::pre_init()
3334 const char *name = 0;
3335 const char *zurl_in_use[MAX_ZURL_PLEX];
3336 int limit_bw, limit_pdu, limit_req, limit_search;
3337 int target_idletime, client_idletime;
3339 int keepalive_limit_bw, keepalive_limit_pdu;
3341 const char *cql2rpn = 0;
3342 const char *authentication = 0;
3343 const char *negotiation_charset = 0;
3344 const char *negotiation_lang = 0;
3346 Yaz_ProxyConfig *cfg = check_reconfigure();
3350 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3355 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3356 &limit_bw, &limit_pdu, &limit_req,
3358 &target_idletime, &client_idletime,
3360 &keepalive_limit_bw,
3361 &keepalive_limit_pdu,
3365 &negotiation_charset,
3373 for (j = 0; zurl_in_use[j]; j++)
3377 int spare_waiting = 0;
3380 for (c = m_clientPool; c; c = c->m_next)
3382 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3384 if (c->m_cookie == 0)
3386 if (c->m_server == 0)
3398 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3399 "sparew=%d preinit=%d",m_session_str,
3400 name, zurl_in_use[j], in_use, other,
3401 spare, spare_waiting, pre_init);
3402 if (spare + spare_waiting < pre_init)
3404 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3405 c->m_next = m_clientPool;
3407 c->m_next->m_prev = &c->m_next;
3409 c->m_prev = &m_clientPool;
3411 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3412 c->set_APDU_yazlog(1);
3414 c->set_APDU_yazlog(0);
3416 if (c->client(zurl_in_use[j]))
3424 c->m_target_idletime = target_idletime;
3425 c->m_seqno = m_seqno++;
3432 void Yaz_Proxy::timeoutNotify()
3437 switch(m_timeout_mode)
3439 case timeout_normal:
3443 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3446 case timeout_reduce:
3447 timeout(m_client_idletime);
3448 m_timeout_mode = timeout_busy;
3449 gdu = m_timeout_gdu;
3451 recv_GDU_normal(gdu);
3454 assert(m_stylesheet_nprl);
3455 convert_xsl_delay();
3456 recv_GDU_more(true);
3466 void Yaz_Proxy::markInvalid()
3469 m_flag_invalid_session = 1;
3472 void Yaz_ProxyClient::timeoutNotify()
3475 m_server->inc_request_no();
3477 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3481 m_server->send_response_fail_client(get_hostname());
3483 Yaz_Proxy *proxy_root = m_root;
3487 proxy_root->pre_init();
3490 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3491 Yaz_Proxy *parent) :
3492 Z_Assoc (the_PDU_Observable)
3499 m_last_resultSetId = 0;
3500 m_last_resultCount = 0;
3504 m_init_odr = odr_createmem (ODR_DECODE);
3506 m_initResponse_options = 0;
3507 m_initResponse_version = 0;
3508 m_initResponse_preferredMessageSize = 0;
3509 m_initResponse_maximumRecordSize = 0;
3510 m_resultSetStartPoint = 0;
3511 m_bytes_sent = m_bytes_recv = 0;
3515 m_target_idletime = 600;
3517 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3518 m_idAuthentication_ber_buf = 0;
3519 m_idAuthentication_ber_size = 0;
3522 const char *Yaz_Proxy::option(const char *name, const char *value)
3524 if (!strcmp (name, "optimize")) {
3527 m_optimize = xstrdup (value);
3534 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3539 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3541 if (apdu->which == Z_GDU_Z3950)
3542 recv_Z_PDU(apdu->u.z3950, len);
3543 else if (apdu->which == Z_GDU_HTTP_Response)
3544 recv_HTTP_response(apdu->u.HTTP_Response, len);
3549 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3551 if (!m_flag_invalid_session)
3553 m_flag_invalid_session = 0;
3554 handle_incoming_Z_PDU(m_apdu_invalid_session);
3555 assert (m_mem_invalid_session);
3556 nmem_destroy(m_mem_invalid_session);
3557 m_mem_invalid_session = 0;
3561 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3563 m_bytes_recv += len;
3567 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3568 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3569 apdu_name(apdu), get_hostname(), len);
3570 if (apdu->which == Z_APDU_initResponse)
3572 if (!m_server) // if this is a pre init session , check for more
3574 NMEM nmem = odr_extract_mem (odr_decode());
3575 odr_reset (m_init_odr);
3576 nmem_transfer (m_init_odr->mem, nmem);
3577 m_initResponse = apdu;
3578 m_initResponse_options = apdu->u.initResponse->options;
3579 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3580 m_initResponse_preferredMessageSize =
3581 *apdu->u.initResponse->preferredMessageSize;
3582 m_initResponse_maximumRecordSize =
3583 *apdu->u.initResponse->maximumRecordSize;
3585 Z_InitResponse *ir = apdu->u.initResponse;
3587 // apply YAZ Proxy version
3588 char *imv0 = ir->implementationVersion;
3589 char *imv1 = (char*)
3590 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3594 strcat(imv1, "/" VERSION);
3595 ir->implementationVersion = imv1;
3597 // apply YAZ Proxy implementation name
3598 char *im0 = ir->implementationName;
3600 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3607 strcat(im1, "(YAZ Proxy)");
3608 ir->implementationName = im1;
3610 nmem_destroy (nmem);
3612 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3615 if (apdu->which == Z_APDU_searchResponse)
3617 Z_SearchResponse *sr = apdu->u.searchResponse;
3618 m_last_resultCount = *sr->resultCount;
3619 int status = *sr->searchStatus;
3620 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3624 if (sr->records && sr->records->which == Z_Records_DBOSD)
3626 m_cache.add(odr_decode(),
3627 sr->records->u.databaseOrSurDiagnostics, 1,
3632 if (apdu->which == Z_APDU_presentResponse)
3634 Z_PresentResponse *pr = apdu->u.presentResponse;
3638 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3639 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3640 sr->referenceId = pr->referenceId;
3641 *sr->resultCount = m_last_resultCount;
3642 sr->records = pr->records;
3643 sr->nextResultSetPosition = pr->nextResultSetPosition;
3644 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3648 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3650 m_cache.add(odr_decode(),
3651 pr->records->u.databaseOrSurDiagnostics,
3652 m_resultSetStartPoint, -1);
3653 m_resultSetStartPoint = 0;
3657 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3659 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3662 server->send_to_client(apdu);
3663 if (apdu->which == Z_APDU_close)
3666 server->recv_GDU_more(true);
3669 void Yaz_Proxy::low_socket_close()
3674 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3675 if (m_lo_fd[i] >= 0)
3676 ::close(m_lo_fd[i]);
3680 void Yaz_Proxy::low_socket_open()
3685 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3686 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3690 int Yaz_Proxy::server(const char *addr)
3692 int r = Z_Assoc::server(addr);
3695 yaz_log(YLOG_LOG, "%sStarted proxy "
3699 " on %s", m_session_str, addr);
3705 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3707 const char *base64_chars =
3708 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3709 int len = strlen(base64);
3713 for (int pos = 0; pos <= len; pos++)
3715 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3718 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3721 char ch = (char) (ch_ptr - base64_chars);
3725 buf[buf_pos] = ch << 2;
3728 buf[buf_pos++] += (ch & 0x30) >> 4;
3729 buf[buf_pos] = (ch & 0x0f) << 4;
3732 buf[buf_pos++] += (ch & 0x3c) >> 2;
3733 buf[buf_pos] = (ch & 0x03) << 6;
3736 buf[buf_pos++] += ch;
3743 buf[buf_pos] = '\0';
3749 * indent-tabs-mode: nil
3751 * vim: shiftwidth=4 tabstop=8 expandtab