1 /* $Id: yaz-proxy.cpp,v 1.49 2006-04-06 01:16:55 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 sprintf(session_str, "%ld:%d ", (long) time(0), m_session_no);
429 const char *peername = the_PDU_Observable->getpeername();
430 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
432 m_connect.cleanup(false);
433 m_connect.add_connect(peername);
435 int connect_total = m_connect.get_total(peername);
436 int connect_max = m_connect_max;
437 if (connect_max && connect_total > connect_max)
439 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
440 session_str, connect_total, connect_max);
443 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", session_str,
446 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
447 m_socket_observable, this);
450 new_proxy->m_initial_reduce = connect_total / m_limit_connect;
452 new_proxy->m_config = 0;
453 new_proxy->m_config_fname = 0;
454 new_proxy->timeout(m_client_idletime);
455 new_proxy->m_target_idletime = m_target_idletime;
456 new_proxy->set_default_target(m_default_target);
457 new_proxy->m_max_clients = m_max_clients;
458 new_proxy->m_log_mask = m_log_mask;
459 new_proxy->set_APDU_log(get_APDU_log());
460 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
461 new_proxy->set_APDU_yazlog(1);
463 new_proxy->set_APDU_yazlog(0);
464 strcpy(new_proxy->m_session_str, session_str);
465 new_proxy->m_peername = xstrdup(peername);
466 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
467 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
468 // create thread object the first time we get an incoming connection
470 m_my_thread = new Msg_Thread(m_socket_observable, 1);
471 new_proxy->m_my_thread = m_my_thread;
475 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
478 Z_OtherInformationUnit *oi;
480 ent.proto = PROTO_Z3950;
481 ent.oclass = CLASS_USERINFO;
482 ent.value = (oid_value) VAL_COOKIE;
483 assert (oid_ent_to_oid (&ent, oid));
485 if (oid_ent_to_oid (&ent, oid) &&
486 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
487 oi->which == Z_OtherInfo_characterInfo)
488 return oi->information.characterInfo;
491 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
494 Z_OtherInformationUnit *oi;
496 ent.proto = PROTO_Z3950;
497 ent.oclass = CLASS_USERINFO;
498 ent.value = (oid_value) VAL_PROXY;
499 if (oid_ent_to_oid (&ent, oid) &&
500 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
501 oi->which == Z_OtherInfo_characterInfo)
502 return oi->information.characterInfo;
505 const char *Yaz_Proxy::load_balance(const char **url)
507 int zurl_in_use[MAX_ZURL_PLEX];
508 int zurl_in_spare[MAX_ZURL_PLEX];
512 for (i = 0; i<MAX_ZURL_PLEX; i++)
515 zurl_in_spare[i] = 0;
517 for (c = m_parent->m_clientPool; c; c = c->m_next)
519 for (i = 0; url[i]; i++)
520 if (!strcmp(url[i], c->get_hostname()))
523 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
527 int min_use = 100000;
528 int spare_for_min = 0;
530 const char *ret_min = 0;
531 const char *ret_spare = 0;
532 for (i = 0; url[i]; i++)
534 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
535 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
536 if (min_use > zurl_in_use[i])
539 min_use = zurl_in_use[i];
540 spare_for_min = zurl_in_spare[i];
542 if (max_spare < zurl_in_spare[i])
545 max_spare = zurl_in_spare[i];
551 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
552 const char *proxy_host)
555 Yaz_Proxy *parent = m_parent;
556 Yaz_ProxyClient *c = m_client;
560 const char *url[MAX_ZURL_PLEX];
561 Yaz_ProxyConfig *cfg = check_reconfigure();
564 if (parent && parent->m_debug_mode)
566 // only to be enabled for debugging...
567 if (!strcmp(proxy_host, "stop"))
570 xfree(m_default_target);
571 m_default_target = xstrdup(proxy_host);
573 proxy_host = m_default_target;
574 int client_idletime = -1;
575 const char *cql2rpn_fname = 0;
576 const char *negotiation_charset = 0;
577 const char *negotiation_lang = 0;
578 const char *query_charset = 0;
579 const char *default_client_query_charset = 0;
580 url[0] = m_default_target;
585 cfg->get_target_info(proxy_host, url, &m_bw_max,
586 &m_pdu_max, &m_max_record_retrieve,
588 &m_target_idletime, &client_idletime,
589 &parent->m_max_clients,
590 &m_keepalive_limit_bw,
591 &m_keepalive_limit_pdu,
594 &negotiation_charset,
597 &default_client_query_charset);
599 if (client_idletime != -1)
601 m_client_idletime = client_idletime;
602 timeout(m_client_idletime);
605 m_cql2rpn.set_pqf_file(cql2rpn_fname);
606 if (negotiation_charset || negotiation_lang || default_client_query_charset)
608 set_proxy_negotiation(negotiation_charset,
609 negotiation_lang, default_client_query_charset);
611 m_charset_converter->set_target_query_charset(query_charset);
614 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
617 // we don't handle multiplexing for cookie session, so we just
618 // pick the first one in this case (anonymous users will be able
619 // to use any backend)
620 if (cookie && *cookie)
621 m_proxyTarget = (char*) xstrdup(url[0]);
623 m_proxyTarget = (char*) xstrdup(load_balance(url));
625 if (cookie && *cookie)
626 { // search in sessions with a cookie
627 for (c = parent->m_clientPool; c; c = c->m_next)
630 assert (*c->m_prev == c);
631 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
632 !strcmp(m_proxyTarget, c->get_hostname()))
635 // The following handles "cancel"
636 // If connection is busy (waiting for PDU) and
637 // we have an initRequest we can safely do re-open
638 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
640 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
647 c->m_last_resultCount = 0;
648 c->m_sr_transform = 0;
650 c->m_resultSetStartPoint = 0;
651 c->m_target_idletime = m_target_idletime;
652 if (c->client(m_proxyTarget))
659 c->m_seqno = parent->m_seqno;
660 if (c->m_server && c->m_server != this)
661 c->m_server->m_client = 0;
664 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
669 else if (!c && apdu->which == Z_APDU_initRequest )
671 // anonymous sessions without cookie.
672 // if authentication is set it is NOT anonymous se we can't share them.
673 // If charset and lang negotiation is use it is NOT anonymous session too.
674 for (c = parent->m_clientPool; c; c = c->m_next)
677 assert(*c->m_prev == c);
678 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
679 && c->compare_idAuthentication(apdu)
680 && c->compare_charset(apdu)
681 && !strcmp(m_proxyTarget, c->get_hostname()))
684 yaz_log (YLOG_LOG, "%sREUSE %d %s",
685 m_session_str, parent->m_seqno, c->get_hostname());
687 c->m_seqno = parent->m_seqno;
688 assert(c->m_server == 0);
691 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
692 c->set_APDU_yazlog(1);
694 c->set_APDU_yazlog(0);
706 if (apdu->which != Z_APDU_initRequest)
708 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
711 // go through list of clients - and find the lowest/oldest one.
712 Yaz_ProxyClient *c_min = 0;
714 int no_of_clients = 0;
715 if (parent->m_clientPool)
716 yaz_log (YLOG_DEBUG, "Existing sessions");
717 for (c = parent->m_clientPool; c; c = c->m_next)
719 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
720 c->m_waiting, c->get_hostname(),
721 c->m_cookie ? c->m_cookie : "");
723 if (min_seq < 0 || c->m_seqno < min_seq)
725 min_seq = c->m_seqno;
729 if (no_of_clients >= parent->m_max_clients)
732 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
734 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
735 m_session_str, parent->m_max_clients, c->m_seqno);
736 if (c->m_server && c->m_server != this)
737 delete c->m_server; // PROBLEM: m_ref_count!
742 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
743 m_session_str, parent->m_max_clients,
744 c->m_seqno, parent->m_seqno, c->get_hostname());
748 c->m_cookie = xstrdup(cookie);
749 c->m_seqno = parent->m_seqno;
750 if (c->m_server && c->m_server != this)
752 c->m_server->m_client = 0;
753 delete c->m_server; // PROBLEM: m_ref_count!
756 c->m_target_idletime = m_target_idletime;
757 c->timeout(m_target_idletime);
759 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
760 c->set_APDU_yazlog(1);
762 c->set_APDU_yazlog(0);
769 yaz_log (YLOG_LOG, "%sNEW %d %s",
770 m_session_str, parent->m_seqno, m_proxyTarget);
771 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
772 c->m_next = parent->m_clientPool;
774 c->m_next->m_prev = &c->m_next;
775 parent->m_clientPool = c;
776 c->m_prev = &parent->m_clientPool;
782 c->m_cookie = xstrdup(cookie);
784 c->m_seqno = parent->m_seqno;
786 c->m_last_resultCount = 0;
789 c->m_sr_transform = 0;
791 c->m_resultSetStartPoint = 0;
793 if (c->client(m_proxyTarget))
798 c->m_target_idletime = m_target_idletime;
801 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
802 c->set_APDU_yazlog(1);
804 c->set_APDU_yazlog(0);
806 c->set_idAuthentication(apdu);
808 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
812 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
815 for (i = 0; i<num; i++)
818 Z_DefaultDiagFormat *r;
819 Z_DiagRec *p = pp[i];
820 if (p->which != Z_DiagRec_defaultFormat)
822 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
826 r = p->u.defaultFormat;
827 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
828 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
829 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
832 case Z_DefaultDiagFormat_v2Addinfo:
833 yaz_log(YLOG_LOG, "%sError %d %s:%s",
835 *r->condition, diagbib1_str(*r->condition),
838 case Z_DefaultDiagFormat_v3Addinfo:
839 yaz_log(YLOG_LOG, "%sError %d %s:%s",
841 *r->condition, diagbib1_str(*r->condition),
848 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
850 if (!m_stylesheet_xsp || p->num_records <= 0)
852 return 0; /* no XSLT to be done ... */
855 m_stylesheet_offset = 0;
856 m_stylesheet_nprl = p;
857 m_stylesheet_apdu = apdu;
858 m_timeout_mode = timeout_xsl;
864 void Yaz_Proxy::convert_xsl_delay()
867 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
868 if (npr->which == Z_NamePlusRecord_databaseRecord)
870 Z_External *r = npr->u.databaseRecord;
871 if (r->which == Z_External_octet)
874 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
876 xmlDocPtr res, doc = xmlParseMemory(
877 (char*) r->u.octet_aligned->buf,
878 r->u.octet_aligned->len);
881 yaz_log(YLOG_LOG, "%sXSLT convert %d",
882 m_session_str, m_stylesheet_offset);
883 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
890 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
892 m_stylesheet_nprl->records[m_stylesheet_offset]->
894 z_ext_record(odr_encode(), VAL_TEXT_XML,
895 (char*) out_buf, out_len);
904 m_stylesheet_offset++;
905 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
907 m_timeout_mode = timeout_normal;
908 m_stylesheet_nprl = 0;
910 if (m_stylesheet_xsp)
911 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
913 m_stylesheet_xsp = 0;
914 timeout(m_client_idletime);
915 send_PDU_convert(m_stylesheet_apdu);
921 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
923 if (m_frontend_type != VAL_NONE)
926 for (i = 0; i < p->num_records; i++)
928 Z_NamePlusRecord *npr = p->records[i];
929 if (npr->which == Z_NamePlusRecord_databaseRecord)
931 Z_External *r = npr->u.databaseRecord;
932 if (r->which == Z_External_octet)
935 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
937 if (!m_usemarcon->m_stage1)
939 m_usemarcon->m_stage1 = new CDetails();
941 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
942 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
943 int res = m_usemarcon->m_stage1->Start();
948 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
949 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
951 if (!m_usemarcon->m_stage2)
953 m_usemarcon->m_stage2 = new CDetails();
955 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
956 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
957 res = m_usemarcon->m_stage2->Start();
961 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
965 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
968 npr->u.databaseRecord =
969 z_ext_record(odr_encode(),
977 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
983 npr->u.databaseRecord =
984 z_ext_record(odr_encode(),
986 (char*) r->u.octet_aligned->buf,
987 r->u.octet_aligned->len);
994 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
995 const char *backend_charset)
997 int sel = m_charset_converter->get_client_charset_selected();
998 const char *client_record_charset =
999 m_charset_converter->get_client_query_charset();
1000 if (sel && backend_charset && client_record_charset &&
1001 strcmp(backend_charset, client_record_charset))
1004 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1006 yaz_marc_t mt = yaz_marc_create();
1007 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1008 yaz_marc_iconv(mt, cd);
1009 for (i = 0; i < p->num_records; i++)
1011 Z_NamePlusRecord *npr = p->records[i];
1012 if (npr->which == Z_NamePlusRecord_databaseRecord)
1014 Z_External *r = npr->u.databaseRecord;
1015 oident *ent = oid_getentbyoid(r->direct_reference);
1016 if (!ent || ent->value == VAL_NONE)
1019 if (ent->value == VAL_SUTRS)
1021 WRBUF w = wrbuf_alloc();
1023 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1024 r->u.octet_aligned->len);
1025 npr->u.databaseRecord =
1026 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1030 else if (ent->value == VAL_TEXT_XML)
1034 else if (r->which == Z_External_octet)
1038 if (yaz_marc_decode_buf(mt,
1039 (char*) r->u.octet_aligned->buf,
1040 r->u.octet_aligned->len,
1043 npr->u.databaseRecord =
1044 z_ext_record(odr_encode(), ent->value, result, rlen);
1045 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1052 yaz_iconv_close(cd);
1053 yaz_marc_destroy(mt);
1057 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1058 const char *backend_charset)
1061 if (!backend_charset)
1062 backend_charset = "MARC-8";
1063 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1064 yaz_marc_t mt = yaz_marc_create();
1065 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1066 yaz_marc_iconv(mt, cd);
1067 for (i = 0; i < p->num_records; i++)
1069 Z_NamePlusRecord *npr = p->records[i];
1070 if (npr->which == Z_NamePlusRecord_databaseRecord)
1072 Z_External *r = npr->u.databaseRecord;
1073 if (r->which == Z_External_OPAC)
1075 WRBUF w = wrbuf_alloc();
1077 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1078 npr->u.databaseRecord = z_ext_record(
1079 odr_encode(), VAL_TEXT_XML,
1080 wrbuf_buf(w), wrbuf_len(w)
1084 else if (r->which == Z_External_octet)
1088 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1089 r->u.octet_aligned->len,
1092 npr->u.databaseRecord =
1093 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1099 yaz_iconv_close(cd);
1100 yaz_marc_destroy(mt);
1103 void Yaz_Proxy::logtime()
1105 #if HAVE_GETTIMEOFDAY
1106 struct timeval *tv = (struct timeval*) m_time_tv;
1110 gettimeofday(&tv1, 0);
1111 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1112 (tv1.tv_usec - tv->tv_usec);
1114 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1115 diff/1000000, (diff/1000)%1000);
1122 int Yaz_Proxy::send_http_response(int code)
1124 ODR o = odr_encode();
1125 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1126 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1128 hres->version = odr_strdup(o, m_http_version);
1129 if (m_http_keepalive)
1130 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1134 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1136 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1140 int r = send_GDU(gdu, &len);
1141 m_bytes_sent += len;
1142 m_bw_stat.add_bytes(len);
1145 recv_GDU_more(true);
1150 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1152 ODR o = odr_encode();
1153 const char *ctype = "text/xml";
1154 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1155 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1157 hres->version = odr_strdup(o, m_http_version);
1158 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1159 if (m_http_keepalive)
1160 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1163 if (http_code == 401)
1164 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1166 static Z_SOAP_Handler soap_handlers[2] = {
1168 {"http://www.loc.gov/zing/srw/", 0,
1169 (Z_SOAP_fun) yaz_srw_codec},
1174 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1175 soap_package->which = Z_SOAP_generic;
1176 soap_package->u.generic =
1177 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1178 soap_package->u.generic->no = 0;
1179 soap_package->u.generic->ns = soap_handlers[0].ns;
1180 soap_package->u.generic->p = (void *) srw_pdu;
1181 soap_package->ns = m_soap_ns;
1182 z_soap_codec_enc_xsl(o, &soap_package,
1183 &hres->content_buf, &hres->content_len,
1184 soap_handlers, 0, m_s2z_stylesheet);
1185 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1187 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1191 int r = send_GDU(gdu, &len);
1192 m_bytes_sent += len;
1193 m_bw_stat.add_bytes(len);
1196 recv_GDU_more(true);
1201 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1203 ODR o = odr_encode();
1204 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1205 odr_malloc(o, sizeof(*diagnostic));
1206 int num_diagnostic = 1;
1207 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1208 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1211 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1212 Z_DefaultDiagFormat *ddf)
1214 int bib1_code = *ddf->condition;
1215 if (bib1_code == 109)
1217 srw_res->num_diagnostics = 1;
1218 srw_res->diagnostics = (Z_SRW_diagnostic *)
1219 odr_malloc(o, sizeof(*srw_res->diagnostics));
1220 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1221 yaz_diag_bib1_to_srw(*ddf->condition),
1226 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1228 ODR o = odr_encode();
1229 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1230 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1232 srw_res->numberOfRecords = odr_intdup (o, hits);
1233 if (records && records->which == Z_Records_DBOSD)
1235 srw_res->num_records =
1236 records->u.databaseOrSurDiagnostics->num_records;
1238 srw_res->records = (Z_SRW_record *)
1239 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1240 for (i = 0; i < srw_res->num_records; i++)
1242 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1243 if (npr->which != Z_NamePlusRecord_databaseRecord)
1245 srw_res->records[i].recordSchema = "diagnostic";
1246 srw_res->records[i].recordPacking = m_s2z_packing;
1247 srw_res->records[i].recordData_buf = "67";
1248 srw_res->records[i].recordData_len = 2;
1249 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1252 Z_External *r = npr->u.databaseRecord;
1253 oident *ent = oid_getentbyoid(r->direct_reference);
1254 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1256 srw_res->records[i].recordSchema = m_schema;
1257 srw_res->records[i].recordPacking = m_s2z_packing;
1258 srw_res->records[i].recordData_buf = (char*)
1259 r->u.octet_aligned->buf;
1260 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1261 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1265 srw_res->records[i].recordSchema = "diagnostic";
1266 srw_res->records[i].recordPacking = m_s2z_packing;
1267 srw_res->records[i].recordData_buf = "67";
1268 srw_res->records[i].recordData_len = 2;
1269 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1273 if (records && records->which == Z_Records_NSD)
1276 http_code = z_to_srw_diag(odr_encode(), srw_res,
1277 records->u.nonSurrogateDiagnostic);
1279 return send_http_response(http_code);
1281 return send_srw_response(srw_pdu);
1285 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1286 int num_diagnostics, int http_code /* = 200 */)
1288 ODR o = odr_encode();
1289 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1290 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1292 srw_res->num_diagnostics = num_diagnostics;
1293 srw_res->diagnostics = diagnostics;
1294 return send_srw_response(srw_pdu, http_code);
1297 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1298 int num_diagnostics)
1300 Yaz_ProxyConfig *cfg = check_reconfigure();
1304 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1305 m_s2z_database, &len);
1308 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1309 Z_SRW_explainResponse *er = res->u.explain_response;
1311 er->record.recordData_buf = b;
1312 er->record.recordData_len = len;
1313 er->record.recordPacking = m_s2z_packing;
1314 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1316 er->diagnostics = diagnostics;
1317 er->num_diagnostics = num_diagnostics;
1318 return send_srw_response(res);
1321 return send_http_response(404);
1324 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1328 if (apdu->which == Z_APDU_initResponse)
1330 Z_InitResponse *res = apdu->u.initResponse;
1331 if (*res->result == 0)
1333 send_to_srw_client_error(3, 0);
1335 else if (!m_s2z_search_apdu)
1337 send_srw_explain_response(0, 0);
1341 handle_incoming_Z_PDU(m_s2z_search_apdu);
1344 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1346 m_s2z_search_apdu = 0;
1347 Z_SearchResponse *res = apdu->u.searchResponse;
1348 m_s2z_hit_count = *res->resultCount;
1349 if (res->records && res->records->which == Z_Records_NSD)
1351 send_to_srw_client_ok(0, res->records, 1);
1353 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1356 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1358 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1360 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1362 *pr->numberOfRecordsRequested =
1363 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1365 handle_incoming_Z_PDU(m_s2z_present_apdu);
1369 m_s2z_present_apdu = 0;
1370 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1373 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1376 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1378 m_s2z_present_apdu = 0;
1379 Z_PresentResponse *res = apdu->u.presentResponse;
1380 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1386 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1387 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1389 int r = send_Z_PDU(apdu, &len);
1390 m_bytes_sent += len;
1391 m_bw_stat.add_bytes(len);
1398 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1400 int kill_session = 0;
1401 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1404 *new_id = m_referenceId;
1406 if (apdu->which == Z_APDU_searchResponse)
1408 Z_SearchResponse *sr = apdu->u.searchResponse;
1409 Z_Records *p = sr->records;
1410 if (p && p->which == Z_Records_NSD)
1412 Z_DiagRec dr, *dr_p = &dr;
1413 dr.which = Z_DiagRec_defaultFormat;
1414 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1416 *sr->searchStatus = 0;
1417 display_diagrecs(&dr_p, 1);
1421 if (p && p->which == Z_Records_DBOSD)
1425 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1428 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1429 if (m_marcxml_mode == marcxml)
1430 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1433 convert_records_charset(p->u.databaseOrSurDiagnostics,
1435 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1439 if (sr->resultCount)
1441 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1443 if (*sr->resultCount < 0)
1445 m_flag_invalid_session = 1;
1448 *sr->searchStatus = 0;
1450 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1451 *sr->resultCount = 0;
1456 else if (apdu->which == Z_APDU_presentResponse)
1458 Z_PresentResponse *sr = apdu->u.presentResponse;
1459 Z_Records *p = sr->records;
1460 if (p && p->which == Z_Records_NSD)
1462 Z_DiagRec dr, *dr_p = &dr;
1463 dr.which = Z_DiagRec_defaultFormat;
1464 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1465 if (*sr->presentStatus == Z_PresentStatus_success)
1466 *sr->presentStatus = Z_PresentStatus_failure;
1467 display_diagrecs(&dr_p, 1);
1469 if (p && p->which == Z_Records_DBOSD)
1473 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1476 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1477 if (m_marcxml_mode == marcxml)
1478 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1481 convert_records_charset(p->u.databaseOrSurDiagnostics,
1483 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1487 else if (apdu->which == Z_APDU_initResponse)
1489 //Get and check negotiation record
1490 //from init response.
1491 handle_charset_lang_negotiation(apdu);
1493 if (m_initRequest_options)
1496 (Odr_bitmask *)odr_malloc(odr_encode(),
1497 sizeof(Odr_bitmask));
1498 ODR_MASK_ZERO(nopt);
1501 for (i = 0; i<24; i++)
1502 if (ODR_MASK_GET(m_initRequest_options, i) &&
1503 ODR_MASK_GET(apdu->u.initResponse->options, i))
1504 ODR_MASK_SET(nopt, i);
1505 apdu->u.initResponse->options = nopt;
1507 if (m_initRequest_version)
1509 Z_ProtocolVersion *nopt =
1510 (Odr_bitmask *)odr_malloc(odr_encode(),
1511 sizeof(Odr_bitmask));
1512 ODR_MASK_ZERO(nopt);
1515 for (i = 0; i<8; i++)
1516 if (ODR_MASK_GET(m_initRequest_version, i) &&
1517 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1518 ODR_MASK_SET(nopt, i);
1519 apdu->u.initResponse->protocolVersion = nopt;
1521 apdu->u.initResponse->preferredMessageSize =
1522 odr_intdup(odr_encode(),
1523 m_client->m_initResponse_preferredMessageSize >
1524 m_initRequest_preferredMessageSize ?
1525 m_initRequest_preferredMessageSize :
1526 m_client->m_initResponse_preferredMessageSize);
1527 apdu->u.initResponse->maximumRecordSize =
1528 odr_intdup(odr_encode(),
1529 m_client->m_initResponse_maximumRecordSize >
1530 m_initRequest_maximumRecordSize ?
1531 m_initRequest_maximumRecordSize :
1532 m_client->m_initResponse_maximumRecordSize);
1535 int r = send_PDU_convert(apdu);
1542 m_parent->pre_init();
1547 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1549 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1551 odr_reset(m_idAuthentication_odr);
1552 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1553 m_idAuthentication_ber_buf =
1554 odr_getbuf(m_idAuthentication_odr,
1555 &m_idAuthentication_ber_size, 0);
1558 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1563 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1565 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1566 ODR odr = odr_createmem(ODR_ENCODE);
1568 z_IdAuthentication(odr, &t, 1, 0);
1570 char *buf = odr_getbuf(odr, &sz, 0);
1571 if (buf && m_idAuthentication_ber_buf
1572 && sz == m_idAuthentication_ber_size
1573 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1579 if (!buf && !m_idAuthentication_ber_buf)
1584 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1587 const char *apdu_name_tmp = apdu_name(apdu);
1588 int r = send_Z_PDU(apdu, &len);
1589 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1590 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1592 apdu_name_tmp, get_hostname(), len);
1593 m_bytes_sent += len;
1597 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1599 if (apdu->which == Z_APDU_presentRequest)
1601 Z_PresentRequest *pr = apdu->u.presentRequest;
1602 int toget = *pr->numberOfRecordsRequested;
1603 int start = *pr->resultSetStartPoint;
1605 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1606 pr->resultSetId, start, toget);
1608 if (*m_parent->m_optimize == '0')
1611 if (!m_client->m_last_resultSetId)
1613 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1614 new_apdu->u.presentResponse->records =
1615 create_nonSurrogateDiagnostics(odr_encode(), 30,
1617 send_to_client(new_apdu);
1620 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1622 if (start+toget-1 > m_client->m_last_resultCount)
1624 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1625 new_apdu->u.presentResponse->records =
1626 create_nonSurrogateDiagnostics(odr_encode(), 13, 0);
1627 send_to_client(new_apdu);
1630 Z_NamePlusRecordList *npr;
1632 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1633 m_session_str, start, toget, yaz_z3950oid_to_str(
1634 pr->preferredRecordSyntax, &oclass));
1636 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1637 pr->preferredRecordSyntax,
1638 pr->recordComposition))
1640 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1642 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1643 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1645 new_apdu->u.presentResponse->numberOfRecordsReturned
1646 = odr_intdup(odr_encode(), toget);
1648 new_apdu->u.presentResponse->records = (Z_Records*)
1649 odr_malloc(odr_encode(), sizeof(Z_Records));
1650 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1651 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1652 new_apdu->u.presentResponse->nextResultSetPosition =
1653 odr_intdup(odr_encode(), start+toget);
1655 send_to_client(new_apdu);
1661 if (apdu->which != Z_APDU_searchRequest)
1663 Z_SearchRequest *sr = apdu->u.searchRequest;
1664 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1665 Yaz_Z_Databases this_databases;
1667 this_databases.set(sr->num_databaseNames, (const char **)
1670 this_query->set_Z_Query(sr->query);
1672 char query_str[120];
1673 this_query->print(query_str, sizeof(query_str)-1);
1674 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1676 if (*m_parent->m_optimize != '0' &&
1677 m_client->m_last_ok && m_client->m_last_query &&
1678 m_client->m_last_query->match(this_query) &&
1679 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1680 m_client->m_last_databases.match(this_databases))
1683 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1684 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1686 Z_NamePlusRecordList *npr;
1687 int toget = *sr->mediumSetPresentNumber;
1688 Z_RecordComposition *comp = 0;
1690 if (toget > m_client->m_last_resultCount)
1691 toget = m_client->m_last_resultCount;
1693 if (sr->mediumSetElementSetNames)
1695 comp = (Z_RecordComposition *)
1696 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1697 comp->which = Z_RecordComp_simple;
1698 comp->u.simple = sr->mediumSetElementSetNames;
1701 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1702 sr->preferredRecordSyntax, comp))
1704 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1706 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1707 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1708 new_apdu->u.searchResponse->resultCount =
1709 &m_client->m_last_resultCount;
1711 new_apdu->u.searchResponse->numberOfRecordsReturned
1712 = odr_intdup(odr_encode(), toget);
1714 new_apdu->u.searchResponse->presentStatus =
1715 odr_intdup(odr_encode(), Z_PresentStatus_success);
1716 new_apdu->u.searchResponse->records = (Z_Records*)
1717 odr_malloc(odr_encode(), sizeof(Z_Records));
1718 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1719 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1720 new_apdu->u.searchResponse->nextResultSetPosition =
1721 odr_intdup(odr_encode(), toget+1);
1722 send_to_client(new_apdu);
1728 // send present request (medium size)
1729 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1732 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1733 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1734 pr->referenceId = sr->referenceId;
1735 pr->resultSetId = sr->resultSetName;
1736 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1737 *pr->numberOfRecordsRequested = toget;
1738 pr->recordComposition = comp;
1739 m_client->m_sr_transform = 1;
1743 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1744 m_client->m_last_resultCount <= 0)
1746 // large set. Return pseudo-search response immediately
1747 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1749 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1750 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1751 new_apdu->u.searchResponse->resultCount =
1752 &m_client->m_last_resultCount;
1753 send_to_client(new_apdu);
1758 Z_NamePlusRecordList *npr;
1759 int toget = m_client->m_last_resultCount;
1760 Z_RecordComposition *comp = 0;
1762 // send a present request (small set)
1764 if (sr->smallSetElementSetNames)
1766 comp = (Z_RecordComposition *)
1767 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1768 comp->which = Z_RecordComp_simple;
1769 comp->u.simple = sr->smallSetElementSetNames;
1772 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1773 sr->preferredRecordSyntax, comp))
1775 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1777 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1778 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1779 new_apdu->u.searchResponse->resultCount =
1780 &m_client->m_last_resultCount;
1782 new_apdu->u.searchResponse->numberOfRecordsReturned
1783 = odr_intdup(odr_encode(), toget);
1785 new_apdu->u.searchResponse->presentStatus =
1786 odr_intdup(odr_encode(), Z_PresentStatus_success);
1787 new_apdu->u.searchResponse->records = (Z_Records*)
1788 odr_malloc(odr_encode(), sizeof(Z_Records));
1789 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1790 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1791 new_apdu->u.searchResponse->nextResultSetPosition =
1792 odr_intdup(odr_encode(), toget+1);
1793 send_to_client(new_apdu);
1798 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1800 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1801 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1802 pr->referenceId = sr->referenceId;
1803 pr->resultSetId = sr->resultSetName;
1804 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1805 *pr->numberOfRecordsRequested = toget;
1806 pr->recordComposition = comp;
1807 m_client->m_sr_transform = 1;
1812 else // query doesn't match
1814 delete m_client->m_last_query;
1815 m_client->m_last_query = this_query;
1816 m_client->m_last_ok = 0;
1817 m_client->m_cache.clear();
1818 m_client->m_resultSetStartPoint = 0;
1820 xfree (m_client->m_last_resultSetId);
1821 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1823 m_client->m_last_databases.set(sr->num_databaseNames,
1824 (const char **) sr->databaseNames);
1830 void Yaz_Proxy::inc_request_no()
1832 char *cp = strchr(m_session_str, ' ');
1835 sprintf(cp+1, "%d ", m_request_no);
1838 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1842 m_bytes_recv += len;
1844 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1845 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1846 m_session_str, gdu_name(apdu), len);
1848 #if HAVE_GETTIMEOFDAY
1849 gettimeofday((struct timeval *) m_time_tv, 0);
1851 m_bw_stat.add_bytes(len);
1852 m_pdu_stat.add_bytes(1);
1854 GDU *gdu = new GDU(apdu);
1855 m_in_queue.enqueue(gdu);
1857 recv_GDU_more(false);
1860 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1862 int reduce = m_initial_reduce; // initial reduce from connect phase..
1863 m_initial_reduce = 0; // reset it..
1865 int bw_total = m_bw_stat.get_total();
1866 int pdu_total = m_pdu_stat.get_total();
1867 int search_total = m_search_stat.get_total();
1869 assert(m_timeout_mode == timeout_busy);
1870 assert(m_timeout_gdu == 0);
1873 reduce += search_total / m_search_max;
1875 reduce += (bw_total/m_bw_max);
1878 if (pdu_total > m_pdu_max)
1880 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
1881 reduce = (reduce > nreduce) ? reduce : nreduce;
1887 /* uncomment to force a big reduce */
1888 m_timeout_mode = timeout_reduce;
1889 m_timeout_gdu = gdu;
1890 timeout(3); // call us reduce seconds later
1895 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
1896 m_session_str, reduce, bw_total, pdu_total, search_total,
1897 m_bw_max, m_pdu_max, m_search_max);
1899 m_timeout_mode = timeout_reduce;
1900 m_timeout_gdu = gdu;
1901 timeout(reduce); // call us reduce seconds later
1904 recv_GDU_normal(gdu);
1907 void Yaz_Proxy::recv_GDU_more(bool normal)
1910 if (normal && m_timeout_mode == timeout_busy)
1911 m_timeout_mode = timeout_normal;
1912 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
1914 m_timeout_mode = timeout_busy;
1919 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
1922 gdu->move_away_gdu(odr_decode(), &apdu);
1925 if (apdu->which == Z_GDU_Z3950)
1926 handle_incoming_Z_PDU(apdu->u.z3950);
1927 else if (apdu->which == Z_GDU_HTTP_Request)
1928 handle_incoming_HTTP(apdu->u.HTTP_Request);
1931 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
1933 if (m_max_record_retrieve)
1935 if (apdu->which == Z_APDU_presentRequest)
1937 Z_PresentRequest *pr = apdu->u.presentRequest;
1938 if (pr->numberOfRecordsRequested &&
1939 *pr->numberOfRecordsRequested > m_max_record_retrieve)
1940 *pr->numberOfRecordsRequested = m_max_record_retrieve;
1945 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
1947 if (apdu->which == Z_APDU_initRequest)
1949 if (m_initRequest_options &&
1950 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
1951 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
1953 // There is no negotiation proposal from
1954 // client's side. OK. The proxy negotiation
1956 Z_InitRequest *initRequest = apdu->u.initRequest;
1957 Z_OtherInformation **otherInfo;
1958 Z_OtherInformationUnit *oi;
1959 get_otherInfoAPDU(apdu, &otherInfo);
1960 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
1963 ODR_MASK_SET(initRequest->options,
1964 Z_Options_negotiationModel);
1965 oi->which = Z_OtherInfo_externallyDefinedInfo;
1966 oi->information.externallyDefinedInfo =
1967 yaz_set_proposal_charneg(odr_encode(),
1968 (const char**)&m_proxy_negotiation_charset,
1969 m_proxy_negotiation_charset ? 1:0,
1970 (const char**)&m_proxy_negotiation_lang,
1971 m_proxy_negotiation_lang ? 1:0,
1975 else if (m_initRequest_options &&
1976 ODR_MASK_GET(m_initRequest_options,
1977 Z_Options_negotiationModel) &&
1978 m_charset_converter->get_target_query_charset())
1980 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
1982 m_charset_converter->get_target_query_charset());
1983 Z_InitRequest *initRequest = apdu->u.initRequest;
1984 Z_CharSetandLanguageNegotiation *negotiation =
1985 yaz_get_charneg_record (initRequest->otherInfo);
1987 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1989 NMEM nmem = nmem_create();
1990 char **charsets = 0;
1991 int num_charsets = 0;
1995 yaz_get_proposal_charneg (nmem, negotiation,
1996 &charsets, &num_charsets,
1997 &langs, &num_langs, &selected);
1999 for (i = 0; i<num_charsets; i++)
2000 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2002 for (i = 0; i<num_langs; i++)
2003 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2006 const char *t_charset =
2007 m_charset_converter->get_target_query_charset();
2008 // sweep through charsets and pick the first supported
2010 for (i = 0; i<num_charsets; i++)
2012 const char *c_charset = charsets[i];
2013 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2016 if (i != num_charsets)
2018 // got one .. set up ODR for reverse direction
2019 const char *c_charset = charsets[i];
2020 odr_set_charset(odr_encode(), c_charset, t_charset);
2021 m_charset_converter->set_client_query_charset(c_charset);
2022 m_charset_converter->set_client_charset_selected(selected);
2025 ODR_MASK_CLEAR(m_initRequest_options,
2026 Z_Options_negotiationModel);
2027 yaz_del_charneg_record(&initRequest->otherInfo);
2031 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2035 else if (m_charset_converter->get_target_query_charset() &&
2036 m_proxy_negotiation_default_charset)
2038 m_charset_converter->
2039 set_client_query_charset(m_proxy_negotiation_default_charset);
2042 else if (apdu->which == Z_APDU_initResponse)
2044 Z_InitResponse *initResponse = apdu->u.initResponse;
2045 Z_OtherInformation **otherInfo;
2046 get_otherInfoAPDU(apdu, &otherInfo);
2048 Z_CharSetandLanguageNegotiation *charneg = 0;
2050 if (otherInfo && *otherInfo &&
2051 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2052 && (charneg = yaz_get_charneg_record(*otherInfo)))
2058 yaz_get_response_charneg(m_referenceId_mem, charneg,
2059 &charset, &lang, &selected);
2061 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2062 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2064 if (m_initRequest_options &&
2065 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2067 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2070 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2072 // negotiation-charset, negotiation-lang
2073 // elements of config file in use.
2075 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2078 // clear negotiation option.
2079 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2081 // Delete negotiation (charneg-3) entry.
2082 yaz_del_charneg_record(otherInfo);
2087 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2089 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2092 else if (m_charset_converter->get_client_query_charset())
2094 Z_OtherInformation **otherInfo;
2095 Z_OtherInformationUnit *oi;
2096 get_otherInfoAPDU(apdu, &otherInfo);
2097 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2100 ODR_MASK_SET(initResponse->options,
2101 Z_Options_negotiationModel);
2102 if (m_initRequest_options)
2103 ODR_MASK_SET(m_initRequest_options,
2104 Z_Options_negotiationModel);
2106 oi->which = Z_OtherInfo_externallyDefinedInfo;
2107 oi->information.externallyDefinedInfo =
2108 yaz_set_response_charneg(
2110 m_charset_converter->get_client_query_charset(),
2112 m_charset_converter->get_client_charset_selected());
2119 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2121 const char *addinfo)
2123 Z_Records *rec = (Z_Records *)
2124 odr_malloc (odr, sizeof(*rec));
2126 odr_malloc (odr, sizeof(*err));
2127 Z_DiagRec *drec = (Z_DiagRec *)
2128 odr_malloc (odr, sizeof(*drec));
2129 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2130 odr_malloc (odr, sizeof(*dr));
2132 rec->which = Z_Records_NSD;
2133 rec->u.nonSurrogateDiagnostic = dr;
2134 dr->diagnosticSetId =
2135 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2136 dr->condition = err;
2137 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2138 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2142 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2144 if (apdu->which == Z_APDU_searchRequest &&
2145 apdu->u.searchRequest->query &&
2146 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2147 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2149 Z_RPNQuery *rpnquery = 0;
2150 Z_SearchRequest *sr = apdu->u.searchRequest;
2153 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2154 sr->query->u.type_104->u.cql);
2156 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2157 &rpnquery, odr_encode(),
2160 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2163 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2164 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2166 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2167 new_apdu->u.searchResponse->records =
2168 create_nonSurrogateDiagnostics(odr_encode(),
2169 yaz_diag_srw_to_bib1(r),
2171 *new_apdu->u.searchResponse->searchStatus = 0;
2173 send_to_client(new_apdu);
2179 sr->query->which = Z_Query_type_1;
2180 sr->query->u.type_1 = rpnquery;
2187 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2189 if (apdu->which == Z_APDU_searchRequest &&
2190 apdu->u.searchRequest->query)
2192 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2193 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2196 m_charset_converter->set_client_query_charset("UTF-8");
2197 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2198 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2205 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2207 if (apdu->which == Z_APDU_searchRequest)
2209 Z_SearchRequest *sr = apdu->u.searchRequest;
2213 Yaz_ProxyConfig *cfg = check_reconfigure();
2215 err = cfg->check_query(odr_encode(), m_default_target,
2216 sr->query, &addinfo);
2219 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2221 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2222 new_apdu->u.searchResponse->records =
2223 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2224 *new_apdu->u.searchResponse->searchStatus = 0;
2226 send_to_client(new_apdu);
2234 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2236 if (apdu->which != Z_APDU_initRequest)
2237 return 1; // pass if no init request
2238 Z_InitRequest *req = apdu->u.initRequest;
2240 Yaz_ProxyConfig *cfg = check_reconfigure();
2242 return 1; // pass if no config
2245 if (req->idAuthentication == 0)
2247 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2250 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2252 ret = cfg->client_authentication(
2254 req->idAuthentication->u.idPass->userId,
2255 req->idAuthentication->u.idPass->groupId,
2256 req->idAuthentication->u.idPass->password,
2259 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2261 char user[64], pass[64];
2264 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2265 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2269 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2274 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2276 m_marcxml_mode = none;
2277 if (apdu->which == Z_APDU_searchRequest)
2279 Z_SearchRequest *sr = apdu->u.searchRequest;
2282 Yaz_ProxyConfig *cfg = check_reconfigure();
2284 Z_RecordComposition rc_temp, *rc = 0;
2285 if (sr->smallSetElementSetNames)
2287 rc_temp.which = Z_RecordComp_simple;
2288 rc_temp.u.simple = sr->smallSetElementSetNames;
2292 if (sr->preferredRecordSyntax)
2295 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2296 m_frontend_type = ent->value;
2299 m_frontend_type = VAL_NONE;
2301 char *stylesheet_name = 0;
2303 err = cfg->check_syntax(odr_encode(),
2305 sr->preferredRecordSyntax, rc,
2306 &addinfo, &stylesheet_name, &m_schema,
2307 &m_backend_type, &m_backend_charset,
2308 &m_usemarcon_ini_stage1,
2309 &m_usemarcon_ini_stage2);
2310 if (stylesheet_name)
2312 m_parent->low_socket_close();
2315 if (m_stylesheet_xsp)
2316 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2317 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2320 m_stylesheet_offset = 0;
2321 xfree(stylesheet_name);
2323 m_parent->low_socket_open();
2327 sr->smallSetElementSetNames = 0;
2328 sr->mediumSetElementSetNames = 0;
2329 m_marcxml_mode = marcxml;
2333 sr->preferredRecordSyntax =
2334 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2338 sr->preferredRecordSyntax =
2339 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2344 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2346 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2347 new_apdu->u.searchResponse->records =
2348 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2349 *new_apdu->u.searchResponse->searchStatus = 0;
2351 send_to_client(new_apdu);
2355 else if (m_backend_type)
2357 sr->preferredRecordSyntax =
2358 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2361 else if (apdu->which == Z_APDU_presentRequest)
2363 Z_PresentRequest *pr = apdu->u.presentRequest;
2366 Yaz_ProxyConfig *cfg = check_reconfigure();
2368 if (pr->preferredRecordSyntax)
2371 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2372 m_frontend_type = ent->value;
2375 m_frontend_type = VAL_NONE;
2377 char *stylesheet_name = 0;
2379 err = cfg->check_syntax(odr_encode(), m_default_target,
2380 pr->preferredRecordSyntax,
2381 pr->recordComposition,
2382 &addinfo, &stylesheet_name, &m_schema,
2383 &m_backend_type, &m_backend_charset,
2384 &m_usemarcon_ini_stage1,
2385 &m_usemarcon_ini_stage2
2387 if (stylesheet_name)
2389 m_parent->low_socket_close();
2392 if (m_stylesheet_xsp)
2393 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2394 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2397 m_stylesheet_offset = 0;
2398 xfree(stylesheet_name);
2400 m_parent->low_socket_open();
2404 pr->recordComposition = 0;
2405 m_marcxml_mode = marcxml;
2409 pr->preferredRecordSyntax =
2410 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2414 pr->preferredRecordSyntax =
2415 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2420 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2422 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2423 new_apdu->u.presentResponse->records =
2424 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2425 *new_apdu->u.presentResponse->presentStatus =
2426 Z_PresentStatus_failure;
2428 send_to_client(new_apdu);
2432 else if (m_backend_type)
2434 pr->preferredRecordSyntax =
2435 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2441 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2445 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2446 odr_malloc(o, sizeof(Z_ElementSetNames));
2447 esn->which = Z_ElementSetNames_generic;
2448 esn->u.generic = odr_strdup(o, schema);
2452 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2455 Yaz_ProxyConfig *cfg = check_reconfigure();
2457 t = cfg->get_explain_name(db, backend_db);
2459 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2466 xfree(m_default_target);
2467 m_default_target = xstrdup(t);
2471 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2474 if (strcmp(hreq->method, "GET"))
2476 if (hreq->path[0] != '/')
2478 const char *cp = hreq->path;
2481 if (*cp == '/' && strchr("/.", cp[1]))
2483 yaz_log(YLOG_LOG, "%sRejecting path %s", m_session_str,
2490 Yaz_ProxyConfig *cfg = check_reconfigure();
2492 if (!cfg->get_file_access_info(hreq->path+1))
2495 const char *fname = hreq->path+1;
2496 if (stat(fname, &sbuf))
2498 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2502 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2504 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2507 if (sbuf.st_size > (off_t) 1000000)
2509 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2514 ODR o = odr_encode();
2516 const char *ctype = cfg->check_mime_type(fname);
2517 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2518 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2520 hres->version = odr_strdup(o, m_http_version);
2521 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2522 if (m_http_keepalive)
2523 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2527 hres->content_len = sbuf.st_size;
2528 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2529 FILE *f = fopen(fname, "rb");
2532 fread(hres->content_buf, 1, hres->content_len, f);
2539 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2541 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2545 send_GDU(gdu, &len);
2546 recv_GDU_more(true);
2550 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2554 odr_destroy(m_s2z_odr_init);
2557 if (m_s2z_odr_search)
2559 odr_destroy(m_s2z_odr_search);
2560 m_s2z_odr_search = 0;
2563 m_http_keepalive = 0;
2565 if (!strcmp(hreq->version, "1.0"))
2567 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2568 if (v && !strcmp(v, "Keep-Alive"))
2569 m_http_keepalive = 1;
2571 m_http_keepalive = 0;
2572 m_http_version = "1.0";
2576 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2577 if (v && !strcmp(v, "close"))
2578 m_http_keepalive = 0;
2580 m_http_keepalive = 1;
2581 m_http_version = "1.1";
2584 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2585 char authorization_str[255];
2586 *authorization_str = '\0';
2587 if (a && strncasecmp(a, "Basic ", 6) == 0)
2588 base64_decode(a + 6, authorization_str, 254);
2590 Z_SRW_PDU *srw_pdu = 0;
2591 Z_SOAP *soap_package = 0;
2593 Z_SRW_diagnostic *diagnostic = 0;
2594 int num_diagnostic = 0;
2596 if (file_access(hreq))
2600 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2602 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2603 &charset, &diagnostic, &num_diagnostic) == 0)
2605 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2606 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2607 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2608 m_s2z_init_apdu = 0;
2609 m_s2z_search_apdu = 0;
2610 m_s2z_present_apdu = 0;
2612 m_s2z_stylesheet = 0;
2614 Z_IdAuthentication *auth = NULL;
2615 if (*authorization_str)
2617 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2618 auth->which = Z_IdAuthentication_idPass;
2619 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2620 auth->u.idPass->groupId = NULL;
2621 char *p = strchr(authorization_str, ':');
2626 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2628 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2631 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2634 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2636 const char *backend_db = srw_req->database;
2637 srw_get_client(srw_req->database, &backend_db);
2639 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2640 // recordXPath unsupported.
2641 if (srw_req->recordXPath)
2643 yaz_add_srw_diagnostic(odr_decode(),
2644 &diagnostic, &num_diagnostic,
2648 if (srw_req->sort_type != Z_SRW_sort_type_none)
2650 yaz_add_srw_diagnostic(odr_decode(),
2651 &diagnostic, &num_diagnostic,
2655 if (srw_req->stylesheet)
2657 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2659 // set packing for response records ..
2660 if (srw_req->recordPacking &&
2661 !strcmp(srw_req->recordPacking, "xml"))
2662 m_s2z_packing = Z_SRW_recordPacking_XML;
2664 m_s2z_packing = Z_SRW_recordPacking_string;
2668 Z_SRW_PDU *srw_pdu =
2669 yaz_srw_get(odr_encode(),
2670 Z_SRW_searchRetrieve_response);
2671 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2673 srw_res->diagnostics = diagnostic;
2674 srw_res->num_diagnostics = num_diagnostic;
2675 send_srw_response(srw_pdu);
2679 // prepare search PDU
2680 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2681 Z_APDU_searchRequest);
2682 Z_SearchRequest *z_searchRequest =
2683 m_s2z_search_apdu->u.searchRequest;
2685 z_searchRequest->num_databaseNames = 1;
2686 z_searchRequest->databaseNames = (char**)
2687 odr_malloc(m_s2z_odr_search, sizeof(char *));
2688 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2691 // query transformation
2692 Z_Query *query = (Z_Query *)
2693 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2694 z_searchRequest->query = query;
2696 if (srw_req->query_type == Z_SRW_query_type_cql)
2698 Z_External *ext = (Z_External *)
2699 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2700 ext->direct_reference =
2701 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2702 ext->indirect_reference = 0;
2703 ext->descriptor = 0;
2704 ext->which = Z_External_CQL;
2705 ext->u.cql = srw_req->query.cql;
2707 query->which = Z_Query_type_104;
2708 query->u.type_104 = ext;
2710 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2712 Z_RPNQuery *RPNquery;
2713 YAZ_PQF_Parser pqf_parser;
2715 pqf_parser = yaz_pqf_create ();
2717 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2718 srw_req->query.pqf);
2721 const char *pqf_msg;
2723 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2725 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2726 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2728 send_to_srw_client_error(10, 0);
2731 query->which = Z_Query_type_1;
2732 query->u.type_1 = RPNquery;
2734 yaz_pqf_destroy (pqf_parser);
2738 send_to_srw_client_error(7, "query");
2743 m_s2z_present_apdu = 0;
2745 if (srw_req->maximumRecords)
2746 max = *srw_req->maximumRecords;
2748 if (srw_req->startRecord)
2749 start = *srw_req->startRecord;
2752 // Some backend, such as Voyager doesn't honor piggyback
2753 // So we use present always (0 &&).
2754 if (0 && start <= 1) // Z39.50 piggyback
2756 *z_searchRequest->smallSetUpperBound = max;
2757 *z_searchRequest->mediumSetPresentNumber = max;
2758 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2760 z_searchRequest->preferredRecordSyntax =
2761 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2763 if (srw_req->recordSchema)
2765 z_searchRequest->smallSetElementSetNames =
2766 z_searchRequest->mediumSetElementSetNames =
2767 mk_esn_from_schema(m_s2z_odr_search,
2768 srw_req->recordSchema);
2771 else // Z39.50 present
2773 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2774 Z_APDU_presentRequest);
2775 Z_PresentRequest *z_presentRequest =
2776 m_s2z_present_apdu->u.presentRequest;
2777 *z_presentRequest->resultSetStartPoint = start;
2778 *z_presentRequest->numberOfRecordsRequested = max;
2779 z_presentRequest->preferredRecordSyntax =
2780 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2782 if (srw_req->recordSchema)
2784 z_presentRequest->recordComposition =
2785 (Z_RecordComposition *)
2786 odr_malloc(m_s2z_odr_search,
2787 sizeof(Z_RecordComposition));
2788 z_presentRequest->recordComposition->which =
2789 Z_RecordComp_simple;
2790 z_presentRequest->recordComposition->u.simple =
2791 mk_esn_from_schema(m_s2z_odr_search,
2792 srw_req->recordSchema);
2798 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2799 Z_APDU_initRequest);
2801 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2803 // prevent m_initRequest_apdu memory from being grabbed
2804 // in Yaz_Proxy::handle_incoming_Z_PDU
2805 m_initRequest_apdu = m_s2z_init_apdu;
2806 handle_incoming_Z_PDU(m_s2z_init_apdu);
2811 handle_incoming_Z_PDU(m_s2z_search_apdu);
2815 else if (srw_pdu->which == Z_SRW_explain_request)
2817 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2819 const char *backend_db = srw_req->database;
2820 srw_get_client(srw_req->database, &backend_db);
2822 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2825 if (srw_req->stylesheet)
2827 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2829 if (srw_req->recordPacking &&
2830 !strcmp(srw_req->recordPacking, "xml"))
2831 m_s2z_packing = Z_SRW_recordPacking_XML;
2833 m_s2z_packing = Z_SRW_recordPacking_string;
2837 send_srw_explain_response(diagnostic, num_diagnostic);
2843 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2844 Z_APDU_initRequest);
2846 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2848 // prevent m_initRequest_apdu memory from being grabbed
2849 // in Yaz_Proxy::handle_incoming_Z_PDU
2850 m_initRequest_apdu = m_s2z_init_apdu;
2851 handle_incoming_Z_PDU(m_s2z_init_apdu);
2854 send_srw_explain_response(0, 0);
2857 else if (srw_pdu->which == Z_SRW_scan_request)
2859 m_s2z_database = odr_strdup(m_s2z_odr_init,
2860 srw_pdu->u.scan_request->database);
2862 yaz_add_srw_diagnostic(odr_decode(),
2863 &diagnostic, &num_diagnostic,
2865 Z_SRW_PDU *srw_pdu =
2866 yaz_srw_get(odr_encode(),
2867 Z_SRW_scan_response);
2868 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
2870 srw_res->diagnostics = diagnostic;
2871 srw_res->num_diagnostics = num_diagnostic;
2872 send_srw_response(srw_pdu);
2879 send_to_srw_client_error(4, 0);
2882 send_http_response(400);
2885 void Yaz_Proxy::handle_init(Z_APDU *apdu)
2888 Z_OtherInformation **oi;
2889 get_otherInfoAPDU(apdu, &oi);
2891 if (apdu->u.initRequest->implementationId)
2892 yaz_log(YLOG_LOG, "%simplementationId: %s",
2893 m_session_str, apdu->u.initRequest->implementationId);
2894 if (apdu->u.initRequest->implementationName)
2895 yaz_log(YLOG_LOG, "%simplementationName: %s",
2896 m_session_str, apdu->u.initRequest->implementationName);
2897 if (apdu->u.initRequest->implementationVersion)
2898 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
2899 m_session_str, apdu->u.initRequest->implementationVersion);
2900 if (m_initRequest_apdu == 0)
2902 if (m_initRequest_mem)
2903 nmem_destroy(m_initRequest_mem);
2905 m_initRequest_apdu = apdu;
2906 m_initRequest_mem = odr_extract_mem(odr_decode());
2908 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
2909 preferredMessageSize;
2910 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
2911 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
2913 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
2915 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
2916 yaz_get_charneg_record(*oi);
2918 // Save proposal charsets and langs.
2919 if (ODR_MASK_GET(apdu->u.initRequest->options,
2920 Z_Options_negotiationModel)
2921 && charSetandLangRecord)
2924 yaz_get_proposal_charneg(m_referenceId_mem,
2925 charSetandLangRecord,
2926 &m_initRequest_oi_negotiation_charsets,
2927 &m_initRequest_oi_negotiation_num_charsets,
2928 &m_initRequest_oi_negotiation_langs,
2929 &m_initRequest_oi_negotiation_num_langs,
2930 &m_initRequest_oi_negotiation_selected);
2932 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
2934 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
2935 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
2936 m_initRequest_oi_negotiation_charsets[i]:"none");
2938 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
2940 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
2941 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
2942 m_initRequest_oi_negotiation_langs[i]:"none");
2944 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
2945 m_session_str, m_initRequest_oi_negotiation_selected);
2947 // save init options for the response..
2948 m_initRequest_options = apdu->u.initRequest->options;
2950 apdu->u.initRequest->options =
2951 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2952 sizeof(Odr_bitmask));
2953 ODR_MASK_ZERO(apdu->u.initRequest->options);
2955 for (i = 0; i<= 24; i++)
2956 ODR_MASK_SET(apdu->u.initRequest->options, i);
2957 // check negotiation option
2958 if (!ODR_MASK_GET(m_initRequest_options,
2959 Z_Options_negotiationModel))
2961 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2962 Z_Options_negotiationModel);
2964 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2965 Z_Options_concurrentOperations);
2967 m_initRequest_version = apdu->u.initRequest->protocolVersion;
2968 apdu->u.initRequest->protocolVersion =
2969 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2970 sizeof(Odr_bitmask));
2971 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
2973 for (i = 0; i<= 8; i++)
2974 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
2976 handle_charset_lang_negotiation(apdu);
2977 if (m_client->m_init_flag)
2979 if (handle_init_response_for_invalid_session(apdu))
2981 if (m_client->m_initResponse)
2983 Z_APDU *apdu2 = m_client->m_initResponse;
2984 apdu2->u.initResponse->otherInfo = 0;
2985 if (m_client->m_cookie && *m_client->m_cookie)
2986 set_otherInformationString(apdu2, VAL_COOKIE, 1,
2987 m_client->m_cookie);
2988 apdu2->u.initResponse->referenceId =
2989 apdu->u.initRequest->referenceId;
2990 apdu2->u.initResponse->options = m_client->m_initResponse_options;
2991 apdu2->u.initResponse->protocolVersion =
2992 m_client->m_initResponse_version;
2994 handle_charset_lang_negotiation(apdu2);
2996 send_to_client(apdu2);
2997 m_timeout_mode = timeout_normal;
3001 m_client->m_init_flag = 1;
3004 Auth_Msg *m = new Auth_Msg;
3006 z_APDU(odr_encode(), &apdu, 0, "encode");
3007 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3008 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3009 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3010 odr_reset(odr_encode());
3013 m_my_thread->put(m);
3015 int ret = handle_authentication(apdu);
3016 result_authentication(apdu, ret);
3020 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3022 Z_ReferenceId **refid = get_referenceIdP(apdu);
3023 nmem_reset(m_referenceId_mem);
3024 if (refid && *refid)
3026 m_referenceId = (Z_ReferenceId *)
3027 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3028 m_referenceId->len = m_referenceId->size = (*refid)->len;
3029 m_referenceId->buf = (unsigned char *)
3030 nmem_malloc(m_referenceId_mem, (*refid)->len);
3031 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3036 if (!m_client && m_flag_invalid_session)
3038 // Got request for a session that is invalid..
3039 m_apdu_invalid_session = apdu; // save package
3040 m_mem_invalid_session = odr_extract_mem(odr_decode());
3041 apdu = m_initRequest_apdu; // but throw an init to the target
3044 if (apdu->which == Z_APDU_searchRequest)
3045 m_search_stat.add_bytes(1);
3047 // Determine our client.
3048 Z_OtherInformation **oi;
3049 get_otherInfoAPDU(apdu, &oi);
3050 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3054 { // HTTP. Send not found
3055 send_http_response(404);
3060 // Z39.50 just shutdown
3066 m_client->m_server = this;
3068 if (apdu->which == Z_APDU_initRequest)
3071 handle_incoming_Z_PDU_2(apdu);
3074 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3076 handle_max_record_retrieve(apdu);
3079 apdu = handle_syntax_validation(apdu);
3082 apdu = handle_query_transformation(apdu);
3085 apdu = handle_target_charset_conversion(apdu);
3088 apdu = handle_query_validation(apdu);
3091 apdu = result_set_optimize(apdu);
3095 m_client->timeout(m_target_idletime); // mark it active even
3096 recv_GDU_more(true);
3097 // though we didn't use it
3101 // delete other info construct completely if 0 elements
3102 Z_OtherInformation **oi;
3103 get_otherInfoAPDU(apdu, &oi);
3104 if (oi && *oi && (*oi)->num_elements == 0)
3107 if (apdu->which == Z_APDU_presentRequest &&
3108 m_client->m_resultSetStartPoint == 0)
3110 Z_PresentRequest *pr = apdu->u.presentRequest;
3111 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3112 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3114 m_client->m_resultSetStartPoint = 0;
3116 if (m_client->send_to_target(apdu) < 0)
3118 m_client->shutdown();
3121 m_client->m_waiting = 1;
3124 void Yaz_Proxy::connectNotify()
3128 void Yaz_Proxy::releaseClient()
3130 xfree(m_proxyTarget);
3132 m_flag_invalid_session = 0;
3133 // only keep if keep_alive flag is set...
3135 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3136 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3137 m_client->m_waiting == 0)
3139 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3141 m_client->get_hostname());
3142 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3143 m_session_str, m_client->m_pdu_recv,
3144 m_client->m_bytes_sent + m_client->m_bytes_recv,
3145 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3146 assert (m_client->m_waiting != 2);
3147 // Tell client (if any) that no server connection is there..
3148 m_client->m_server = 0;
3153 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3155 m_client->get_hostname());
3156 assert (m_client->m_waiting != 2);
3162 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3168 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3172 m_parent->pre_init();
3175 bool Yaz_Proxy::dec_ref(bool main_ptr)
3177 assert(m_ref_count > 0);
3182 m_main_ptr_dec = true;
3185 m_http_keepalive = 0;
3188 if (m_ref_count > 0)
3197 const char *Yaz_ProxyClient::get_session_str()
3201 return m_server->get_session_str();
3204 void Yaz_ProxyClient::shutdown()
3206 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3211 m_waiting = 1; // ensure it's released from Proxy in releaseClient
3212 m_server->dec_ref(true);
3218 void Yaz_Proxy::failNotify()
3221 yaz_log (YLOG_LOG, "%sConnection closed by client",
3226 void Yaz_Proxy::send_response_fail_client(const char *addr)
3230 Z_SRW_diagnostic *diagnostic = 0;
3231 int num_diagnostic = 0;
3233 yaz_add_srw_diagnostic(odr_encode(),
3234 &diagnostic, &num_diagnostic,
3235 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3236 if (m_s2z_search_apdu)
3237 send_srw_search_response(diagnostic, num_diagnostic);
3239 send_srw_explain_response(diagnostic, num_diagnostic);
3242 void Yaz_ProxyClient::failNotify()
3245 m_server->inc_request_no();
3246 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3247 get_session_str(), get_hostname());
3250 m_server->send_response_fail_client(get_hostname());
3254 void Yaz_ProxyClient::connectNotify()
3256 const char *s = get_session_str();
3257 const char *h = get_hostname();
3258 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3260 timeout(m_target_idletime);
3265 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3266 *the_PDU_Observable, int fd)
3268 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3271 Yaz_ProxyClient::~Yaz_ProxyClient()
3276 m_next->m_prev = m_prev;
3277 m_waiting = 2; // for debugging purposes only.
3278 odr_destroy(m_init_odr);
3279 odr_destroy(m_idAuthentication_odr);
3280 delete m_last_query;
3281 xfree (m_last_resultSetId);
3285 void Yaz_ProxyClient::pre_init_client()
3287 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3288 Z_InitRequest *req = apdu->u.initRequest;
3291 for (i = 0; i<= 24; i++)
3292 ODR_MASK_SET(req->options, i);
3293 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3294 Z_Options_negotiationModel);
3295 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3296 Z_Options_concurrentOperations);
3297 for (i = 0; i<= 10; i++)
3298 ODR_MASK_SET(req->protocolVersion, i);
3300 if (send_to_target(apdu) < 0)
3311 void Yaz_Proxy::pre_init()
3314 const char *name = 0;
3315 const char *zurl_in_use[MAX_ZURL_PLEX];
3316 int limit_bw, limit_pdu, limit_req, limit_search;
3317 int target_idletime, client_idletime;
3319 int keepalive_limit_bw, keepalive_limit_pdu;
3321 const char *cql2rpn = 0;
3322 const char *authentication = 0;
3323 const char *negotiation_charset = 0;
3324 const char *negotiation_lang = 0;
3326 Yaz_ProxyConfig *cfg = check_reconfigure();
3330 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3335 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3336 &limit_bw, &limit_pdu, &limit_req,
3338 &target_idletime, &client_idletime,
3340 &keepalive_limit_bw,
3341 &keepalive_limit_pdu,
3345 &negotiation_charset,
3353 for (j = 0; zurl_in_use[j]; j++)
3357 int spare_waiting = 0;
3360 for (c = m_clientPool; c; c = c->m_next)
3362 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3364 if (c->m_cookie == 0)
3366 if (c->m_server == 0)
3378 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3379 "sparew=%d preinit=%d",m_session_str,
3380 name, zurl_in_use[j], in_use, other,
3381 spare, spare_waiting, pre_init);
3382 if (spare + spare_waiting < pre_init)
3384 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3385 c->m_next = m_clientPool;
3387 c->m_next->m_prev = &c->m_next;
3389 c->m_prev = &m_clientPool;
3391 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3392 c->set_APDU_yazlog(1);
3394 c->set_APDU_yazlog(0);
3396 if (c->client(zurl_in_use[j]))
3404 c->m_target_idletime = target_idletime;
3405 c->m_seqno = m_seqno++;
3412 void Yaz_Proxy::timeoutNotify()
3417 switch(m_timeout_mode)
3419 case timeout_normal:
3423 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3426 case timeout_reduce:
3427 timeout(m_client_idletime);
3428 m_timeout_mode = timeout_busy;
3429 gdu = m_timeout_gdu;
3431 recv_GDU_normal(gdu);
3434 assert(m_stylesheet_nprl);
3435 convert_xsl_delay();
3436 recv_GDU_more(true);
3446 void Yaz_Proxy::markInvalid()
3449 m_flag_invalid_session = 1;
3452 void Yaz_ProxyClient::timeoutNotify()
3455 m_server->inc_request_no();
3457 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3461 m_server->send_response_fail_client(get_hostname());
3467 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3468 Yaz_Proxy *parent) :
3469 Z_Assoc (the_PDU_Observable)
3476 m_last_resultSetId = 0;
3477 m_last_resultCount = 0;
3481 m_init_odr = odr_createmem (ODR_DECODE);
3483 m_initResponse_options = 0;
3484 m_initResponse_version = 0;
3485 m_initResponse_preferredMessageSize = 0;
3486 m_initResponse_maximumRecordSize = 0;
3487 m_resultSetStartPoint = 0;
3488 m_bytes_sent = m_bytes_recv = 0;
3492 m_target_idletime = 600;
3494 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3495 m_idAuthentication_ber_buf = 0;
3496 m_idAuthentication_ber_size = 0;
3499 const char *Yaz_Proxy::option(const char *name, const char *value)
3501 if (!strcmp (name, "optimize")) {
3504 m_optimize = xstrdup (value);
3511 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3516 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3518 if (apdu->which == Z_GDU_Z3950)
3519 recv_Z_PDU(apdu->u.z3950, len);
3520 else if (apdu->which == Z_GDU_HTTP_Response)
3521 recv_HTTP_response(apdu->u.HTTP_Response, len);
3526 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3528 if (!m_flag_invalid_session)
3530 m_flag_invalid_session = 0;
3531 handle_incoming_Z_PDU(m_apdu_invalid_session);
3532 assert (m_mem_invalid_session);
3533 nmem_destroy(m_mem_invalid_session);
3534 m_mem_invalid_session = 0;
3538 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3540 m_bytes_recv += len;
3544 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3545 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3546 apdu_name(apdu), get_hostname(), len);
3547 if (apdu->which == Z_APDU_initResponse)
3549 if (!m_server) // if this is a pre init session , check for more
3551 NMEM nmem = odr_extract_mem (odr_decode());
3552 odr_reset (m_init_odr);
3553 nmem_transfer (m_init_odr->mem, nmem);
3554 m_initResponse = apdu;
3555 m_initResponse_options = apdu->u.initResponse->options;
3556 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3557 m_initResponse_preferredMessageSize =
3558 *apdu->u.initResponse->preferredMessageSize;
3559 m_initResponse_maximumRecordSize =
3560 *apdu->u.initResponse->maximumRecordSize;
3562 Z_InitResponse *ir = apdu->u.initResponse;
3563 char *im0 = ir->implementationName;
3566 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3573 strcat(im1, "(YAZ Proxy)");
3574 ir->implementationName = im1;
3576 nmem_destroy (nmem);
3578 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3581 if (apdu->which == Z_APDU_searchResponse)
3583 Z_SearchResponse *sr = apdu->u.searchResponse;
3584 m_last_resultCount = *sr->resultCount;
3585 int status = *sr->searchStatus;
3586 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3590 if (sr->records && sr->records->which == Z_Records_DBOSD)
3592 m_cache.add(odr_decode(),
3593 sr->records->u.databaseOrSurDiagnostics, 1,
3598 if (apdu->which == Z_APDU_presentResponse)
3600 Z_PresentResponse *pr = apdu->u.presentResponse;
3604 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3605 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3606 sr->referenceId = pr->referenceId;
3607 *sr->resultCount = m_last_resultCount;
3608 sr->records = pr->records;
3609 sr->nextResultSetPosition = pr->nextResultSetPosition;
3610 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3614 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3616 m_cache.add(odr_decode(),
3617 pr->records->u.databaseOrSurDiagnostics,
3618 m_resultSetStartPoint, -1);
3619 m_resultSetStartPoint = 0;
3623 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3625 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3628 server->send_to_client(apdu);
3629 if (apdu->which == Z_APDU_close)
3632 server->recv_GDU_more(true);
3635 void Yaz_Proxy::low_socket_close()
3640 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3641 if (m_lo_fd[i] >= 0)
3642 ::close(m_lo_fd[i]);
3646 void Yaz_Proxy::low_socket_open()
3651 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3652 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3656 int Yaz_Proxy::server(const char *addr)
3658 int r = Z_Assoc::server(addr);
3661 yaz_log(YLOG_LOG, "%sStarted proxy "
3665 " on %s", m_session_str, addr);
3671 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3673 const char *base64_chars =
3674 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3675 int len = strlen(base64);
3679 for (int pos = 0; pos <= len; pos++)
3681 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3684 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3687 char ch = (char) (ch_ptr - base64_chars);
3691 buf[buf_pos] = ch << 2;
3694 buf[buf_pos++] += (ch & 0x30) >> 4;
3695 buf[buf_pos] = (ch & 0x0f) << 4;
3698 buf[buf_pos++] += (ch & 0x3c) >> 2;
3699 buf[buf_pos] = (ch & 0x03) << 6;
3702 buf[buf_pos++] += ch;
3709 buf[buf_pos] = '\0';
3715 * indent-tabs-mode: nil
3717 * vim: shiftwidth=4 tabstop=8 expandtab