1 /* $Id: yaz-proxy.cpp,v 1.40 2005-11-29 09:17:37 adam Exp $
2 Copyright (c) 1998-2005, Index Data.
4 This file is part of the yaz-proxy.
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;
58 #define USE_AUTH_MSG 1
61 class Auth_Msg : public IMsg_Thread {
64 IMsg_Thread *handle();
76 m_nmem = nmem_create();
84 IMsg_Thread *Auth_Msg::handle()
86 yaz_log(YLOG_LOG, "Auth_Msg:handle begin");
87 ODR decode = odr_createmem(ODR_DECODE);
90 odr_setbuf(decode, m_apdu_buf, m_apdu_len, 0);
91 int r = z_APDU(decode, &apdu, 0, 0);
94 yaz_log(YLOG_WARN, "decode failed in Auth_Msg::handle");
98 m_ret = m_proxy->handle_authentication(apdu);
100 yaz_log(YLOG_LOG, "Auth_Msg:handle end");
105 void Auth_Msg::result()
107 yaz_log(YLOG_LOG, "Auth_Msg:result proxy ok buf=%p len=%d",
108 m_apdu_buf, m_apdu_len);
109 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
111 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
113 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU OK");
115 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
116 if (m_proxy->dec_ref())
117 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
120 yaz_log(YLOG_LOG, "Auth_Msg::proxy still alive");
121 m_proxy->result_authentication(apdu, m_ret);
128 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
130 if (apdu == 0 || ret == 0)
132 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
133 *apdu_reject->u.initResponse->result = 0;
134 send_to_client(apdu_reject);
138 handle_incoming_Z_PDU_2(apdu);
141 static const char *apdu_name(Z_APDU *apdu)
145 case Z_APDU_initRequest:
146 return "initRequest";
147 case Z_APDU_initResponse:
148 return "initResponse";
149 case Z_APDU_searchRequest:
150 return "searchRequest";
151 case Z_APDU_searchResponse:
152 return "searchResponse";
153 case Z_APDU_presentRequest:
154 return "presentRequest";
155 case Z_APDU_presentResponse:
156 return "presentResponse";
157 case Z_APDU_deleteResultSetRequest:
158 return "deleteResultSetRequest";
159 case Z_APDU_deleteResultSetResponse:
160 return "deleteResultSetResponse";
161 case Z_APDU_scanRequest:
162 return "scanRequest";
163 case Z_APDU_scanResponse:
164 return "scanResponse";
165 case Z_APDU_sortRequest:
166 return "sortRequest";
167 case Z_APDU_sortResponse:
168 return "sortResponse";
169 case Z_APDU_extendedServicesRequest:
170 return "extendedServicesRequest";
171 case Z_APDU_extendedServicesResponse:
172 return "extendedServicesResponse";
179 static const char *gdu_name(Z_GDU *gdu)
184 return apdu_name(gdu->u.z3950);
185 case Z_GDU_HTTP_Request:
186 return "HTTP Request";
187 case Z_GDU_HTTP_Response:
188 return "HTTP Response";
190 return "Unknown request/response";
193 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
194 ISocketObservable *the_socket_observable,
197 Z_Assoc(the_PDU_Observable), m_bw_stat(60), m_pdu_stat(60)
199 m_PDU_Observable = the_PDU_Observable;
200 m_socket_observable = the_socket_observable;
205 m_keepalive_limit_bw = 500000;
206 m_keepalive_limit_pdu = 1000;
208 m_default_target = 0;
209 m_proxy_negotiation_charset = 0;
210 m_proxy_negotiation_lang = 0;
211 m_charset_converter = new Yaz_CharsetConverter;
215 m_client_idletime = 600;
216 m_target_idletime = 600;
217 m_optimize = xstrdup ("1");
218 strcpy(m_session_str, "0 ");
226 m_timeout_mode = timeout_normal;
228 m_max_record_retrieve = 0;
232 m_flag_invalid_session = 0;
234 m_referenceId_mem = nmem_create();
236 m_marcxml_mode = none;
237 m_stylesheet_xsp = 0;
238 m_stylesheet_nprl = 0;
239 m_stylesheet_apdu = 0;
240 m_s2z_stylesheet = 0;
244 m_backend_charset = 0;
246 m_initRequest_apdu = 0;
247 m_initRequest_mem = 0;
248 m_initRequest_preferredMessageSize = 0;
249 m_initRequest_maximumRecordSize = 0;
250 m_initRequest_options = 0;
251 m_initRequest_version = 0;
252 m_initRequest_oi_negotiation_charsets = 0;
253 m_initRequest_oi_negotiation_num_charsets = 0;
254 m_initRequest_oi_negotiation_langs = 0;
255 m_initRequest_oi_negotiation_num_langs = 0;
256 m_initRequest_oi_negotiation_selected = 0;
257 m_apdu_invalid_session = 0;
258 m_mem_invalid_session = 0;
260 m_s2z_odr_search = 0;
262 m_s2z_search_apdu = 0;
263 m_s2z_present_apdu = 0;
264 m_http_keepalive = 0;
267 m_s2z_packing = Z_SRW_recordPacking_string;
268 #if HAVE_GETTIMEOFDAY
269 m_time_tv = xmalloc(sizeof(struct timeval));
270 struct timeval *tv = (struct timeval *) m_time_tv;
276 m_usemarcon_ini_stage1 = 0;
277 m_usemarcon_ini_stage2 = 0;
278 m_usemarcon = new Yaz_usemarcon();
286 void Yaz_Proxy::inc_ref()
291 Yaz_Proxy::~Yaz_Proxy()
293 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
294 m_bytes_sent, m_bytes_recv);
295 nmem_destroy(m_initRequest_mem);
296 nmem_destroy(m_mem_invalid_session);
297 nmem_destroy(m_referenceId_mem);
299 xfree(m_proxyTarget);
300 xfree(m_default_target);
301 xfree(m_proxy_negotiation_charset);
302 xfree(m_proxy_negotiation_lang);
303 delete m_charset_converter;
307 if (m_stylesheet_xsp)
308 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
314 xfree (m_backend_type);
315 xfree (m_backend_charset);
316 xfree (m_usemarcon_ini_stage1);
317 xfree (m_usemarcon_ini_stage2);
320 odr_destroy(m_s2z_odr_init);
321 if (m_s2z_odr_search)
322 odr_destroy(m_s2z_odr_search);
330 void Yaz_Proxy::set_debug_mode(int mode)
335 int Yaz_Proxy::set_config(const char *config)
338 m_config = new Yaz_ProxyConfig();
339 xfree(m_config_fname);
340 m_config_fname = xstrdup(config);
341 int r = m_config->read_xml(config);
343 m_config->get_generic_info(&m_log_mask, &m_max_clients);
347 void Yaz_Proxy::set_default_target(const char *target)
349 xfree (m_default_target);
350 m_default_target = 0;
352 m_default_target = (char *) xstrdup (target);
355 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang)
357 yaz_log(YLOG_LOG, "%sSet the proxy negotiation: charset to '%s', "
358 "language to '%s'", m_session_str, charset?charset:"none",
360 xfree (m_proxy_negotiation_charset);
361 xfree (m_proxy_negotiation_lang);
362 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
364 m_proxy_negotiation_charset = (char *) xstrdup (charset);
366 m_proxy_negotiation_lang = (char *) xstrdup (lang);
369 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
372 return m_parent->check_reconfigure();
374 Yaz_ProxyConfig *cfg = m_config;
377 yaz_log(YLOG_LOG, "reconfigure");
379 if (m_config_fname && cfg)
381 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
382 int r = cfg->read_xml(m_config_fname);
384 yaz_log(YLOG_WARN, "reconfigure failed");
388 cfg->get_generic_info(&m_log_mask, &m_max_clients);
392 yaz_log(YLOG_LOG, "reconfigure");
398 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
399 *the_PDU_Observable, int fd)
402 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
403 m_socket_observable, this);
404 new_proxy->m_config = 0;
405 new_proxy->m_config_fname = 0;
406 new_proxy->timeout(m_client_idletime);
407 new_proxy->m_target_idletime = m_target_idletime;
408 new_proxy->set_default_target(m_default_target);
409 new_proxy->m_max_clients = m_max_clients;
410 new_proxy->m_log_mask = m_log_mask;
411 new_proxy->set_APDU_log(get_APDU_log());
412 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
413 new_proxy->set_APDU_yazlog(1);
415 new_proxy->set_APDU_yazlog(0);
416 sprintf(new_proxy->m_session_str, "%ld:%d ", (long) time(0), m_session_no);
418 new_proxy->m_peername = xstrdup(the_PDU_Observable->getpeername());
419 yaz_log (YLOG_LOG, "%sNew session %s", new_proxy->m_session_str,
420 new_proxy->m_peername);
421 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
422 m_proxy_negotiation_lang);
423 // create thread object the first time we get an incoming connection
425 m_my_thread = new Msg_Thread(m_socket_observable, 1);
426 new_proxy->m_my_thread = m_my_thread;
430 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
433 Z_OtherInformationUnit *oi;
435 ent.proto = PROTO_Z3950;
436 ent.oclass = CLASS_USERINFO;
437 ent.value = (oid_value) VAL_COOKIE;
438 assert (oid_ent_to_oid (&ent, oid));
440 if (oid_ent_to_oid (&ent, oid) &&
441 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
442 oi->which == Z_OtherInfo_characterInfo)
443 return oi->information.characterInfo;
446 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
449 Z_OtherInformationUnit *oi;
451 ent.proto = PROTO_Z3950;
452 ent.oclass = CLASS_USERINFO;
453 ent.value = (oid_value) VAL_PROXY;
454 if (oid_ent_to_oid (&ent, oid) &&
455 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
456 oi->which == Z_OtherInfo_characterInfo)
457 return oi->information.characterInfo;
460 const char *Yaz_Proxy::load_balance(const char **url)
462 int zurl_in_use[MAX_ZURL_PLEX];
463 int zurl_in_spare[MAX_ZURL_PLEX];
467 for (i = 0; i<MAX_ZURL_PLEX; i++)
470 zurl_in_spare[i] = 0;
472 for (c = m_parent->m_clientPool; c; c = c->m_next)
474 for (i = 0; url[i]; i++)
475 if (!strcmp(url[i], c->get_hostname()))
478 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
482 int min_use = 100000;
483 int spare_for_min = 0;
485 const char *ret_min = 0;
486 const char *ret_spare = 0;
487 for (i = 0; url[i]; i++)
489 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
490 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
491 if (min_use > zurl_in_use[i])
494 min_use = zurl_in_use[i];
495 spare_for_min = zurl_in_spare[i];
497 if (max_spare < zurl_in_spare[i])
500 max_spare = zurl_in_spare[i];
506 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
507 const char *proxy_host)
510 Yaz_Proxy *parent = m_parent;
511 Yaz_ProxyClient *c = m_client;
515 const char *url[MAX_ZURL_PLEX];
516 Yaz_ProxyConfig *cfg = check_reconfigure();
519 if (parent && parent->m_debug_mode)
521 // only to be enabled for debugging...
522 if (!strcmp(proxy_host, "stop"))
525 xfree(m_default_target);
526 m_default_target = xstrdup(proxy_host);
528 proxy_host = m_default_target;
529 int client_idletime = -1;
530 const char *cql2rpn_fname = 0;
531 const char *negotiation_charset = 0;
532 const char *negotiation_lang = 0;
533 const char *query_charset = 0;
534 url[0] = m_default_target;
539 cfg->get_target_info(proxy_host, url, &m_bw_max,
540 &m_pdu_max, &m_max_record_retrieve,
541 &m_search_max, &m_connect_max,
542 &m_target_idletime, &client_idletime,
543 &parent->m_max_clients,
544 &m_keepalive_limit_bw,
545 &m_keepalive_limit_pdu,
548 &negotiation_charset,
552 if (client_idletime != -1)
554 m_client_idletime = client_idletime;
555 timeout(m_client_idletime);
558 m_cql2rpn.set_pqf_file(cql2rpn_fname);
559 if (negotiation_charset || negotiation_lang)
561 set_proxy_negotiation(negotiation_charset,
564 m_charset_converter->set_target_query_charset(query_charset);
567 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
570 // we don't handle multiplexing for cookie session, so we just
571 // pick the first one in this case (anonymous users will be able
572 // to use any backend)
573 if (cookie && *cookie)
574 m_proxyTarget = (char*) xstrdup(url[0]);
576 m_proxyTarget = (char*) xstrdup(load_balance(url));
578 if (cookie && *cookie)
579 { // search in sessions with a cookie
580 for (c = parent->m_clientPool; c; c = c->m_next)
583 assert (*c->m_prev == c);
584 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
585 !strcmp(m_proxyTarget, c->get_hostname()))
588 // The following handles "cancel"
589 // If connection is busy (waiting for PDU) and
590 // we have an initRequest we can safely do re-open
591 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
593 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
600 c->m_last_resultCount = 0;
601 c->m_sr_transform = 0;
603 c->m_resultSetStartPoint = 0;
604 c->m_target_idletime = m_target_idletime;
605 if (c->client(m_proxyTarget))
612 c->m_seqno = parent->m_seqno;
613 if (c->m_server && c->m_server != this)
614 c->m_server->m_client = 0;
617 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
623 apdu->which == Z_APDU_initRequest &&
624 apdu->u.initRequest->idAuthentication == 0 &&
625 !ODR_MASK_GET(apdu->u.initRequest->options, Z_Options_negotiationModel))
627 // anonymous sessions without cookie.
628 // if authentication is set it is NOT anonymous se we can't share them.
629 // If charset and lang negotiation is use it is NOT anonymous session too.
630 for (c = parent->m_clientPool; c; c = c->m_next)
633 assert(*c->m_prev == c);
634 if (c->m_server == 0 && c->m_cookie == 0 &&
636 !strcmp(m_proxyTarget, c->get_hostname()))
639 yaz_log (YLOG_LOG, "%sREUSE %d %s",
640 m_session_str, parent->m_seqno, c->get_hostname());
642 c->m_seqno = parent->m_seqno;
643 assert(c->m_server == 0);
646 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
647 c->set_APDU_yazlog(1);
649 c->set_APDU_yazlog(0);
661 if (apdu->which != Z_APDU_initRequest)
663 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
666 Z_InitRequest *initRequest = apdu->u.initRequest;
668 if (initRequest->idAuthentication)
670 // the client uses authentication. We set the keepalive PDU
671 // to 0 so we don't cache it in releaseClient
672 m_keepalive_limit_pdu = 0;
674 // go through list of clients - and find the lowest/oldest one.
675 Yaz_ProxyClient *c_min = 0;
677 int no_of_clients = 0;
678 if (parent->m_clientPool)
679 yaz_log (YLOG_DEBUG, "Existing sessions");
680 for (c = parent->m_clientPool; c; c = c->m_next)
682 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
683 c->m_waiting, c->get_hostname(),
684 c->m_cookie ? c->m_cookie : "");
686 if (min_seq < 0 || c->m_seqno < min_seq)
688 min_seq = c->m_seqno;
692 if (no_of_clients >= parent->m_max_clients)
695 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
697 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
698 m_session_str, parent->m_max_clients, c->m_seqno);
699 if (c->m_server && c->m_server != this)
700 delete c->m_server; // PROBLEM: m_ref_count!
705 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
706 m_session_str, parent->m_max_clients,
707 c->m_seqno, parent->m_seqno, c->get_hostname());
711 c->m_cookie = xstrdup(cookie);
712 c->m_seqno = parent->m_seqno;
713 if (c->m_server && c->m_server != this)
715 c->m_server->m_client = 0;
716 delete c->m_server; // PROBLEM: m_ref_count!
719 c->m_target_idletime = m_target_idletime;
720 c->timeout(m_target_idletime);
722 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
723 c->set_APDU_yazlog(1);
725 c->set_APDU_yazlog(0);
732 yaz_log (YLOG_LOG, "%sNEW %d %s",
733 m_session_str, parent->m_seqno, m_proxyTarget);
734 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
735 c->m_next = parent->m_clientPool;
737 c->m_next->m_prev = &c->m_next;
738 parent->m_clientPool = c;
739 c->m_prev = &parent->m_clientPool;
745 c->m_cookie = xstrdup(cookie);
747 c->m_seqno = parent->m_seqno;
749 c->m_last_resultCount = 0;
752 c->m_sr_transform = 0;
754 c->m_resultSetStartPoint = 0;
756 if (c->client(m_proxyTarget))
761 c->m_target_idletime = m_target_idletime;
764 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
765 c->set_APDU_yazlog(1);
767 c->set_APDU_yazlog(0);
769 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
773 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
776 for (i = 0; i<num; i++)
779 Z_DefaultDiagFormat *r;
780 Z_DiagRec *p = pp[i];
781 if (p->which != Z_DiagRec_defaultFormat)
783 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
787 r = p->u.defaultFormat;
788 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
789 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
790 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
793 case Z_DefaultDiagFormat_v2Addinfo:
794 yaz_log(YLOG_LOG, "%sError %d %s:%s",
796 *r->condition, diagbib1_str(*r->condition),
799 case Z_DefaultDiagFormat_v3Addinfo:
800 yaz_log(YLOG_LOG, "%sError %d %s:%s",
802 *r->condition, diagbib1_str(*r->condition),
809 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
811 if (!m_stylesheet_xsp || p->num_records <= 0)
813 return 0; /* no XSLT to be done ... */
816 m_stylesheet_offset = 0;
817 m_stylesheet_nprl = p;
818 m_stylesheet_apdu = apdu;
819 m_timeout_mode = timeout_xsl;
825 void Yaz_Proxy::convert_xsl_delay()
828 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
829 if (npr->which == Z_NamePlusRecord_databaseRecord)
831 Z_External *r = npr->u.databaseRecord;
832 if (r->which == Z_External_octet)
835 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
837 xmlDocPtr res, doc = xmlParseMemory(
838 (char*) r->u.octet_aligned->buf,
839 r->u.octet_aligned->len);
842 yaz_log(YLOG_LOG, "%sXSLT convert %d",
843 m_session_str, m_stylesheet_offset);
844 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
851 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
853 m_stylesheet_nprl->records[m_stylesheet_offset]->
855 z_ext_record(odr_encode(), VAL_TEXT_XML,
856 (char*) out_buf, out_len);
865 m_stylesheet_offset++;
866 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
868 m_timeout_mode = timeout_normal;
869 m_stylesheet_nprl = 0;
871 if (m_stylesheet_xsp)
872 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
874 m_stylesheet_xsp = 0;
875 timeout(m_client_idletime);
876 send_PDU_convert(m_stylesheet_apdu);
882 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
884 if (m_frontend_type != VAL_NONE)
887 for (i = 0; i < p->num_records; i++)
889 Z_NamePlusRecord *npr = p->records[i];
890 if (npr->which == Z_NamePlusRecord_databaseRecord)
892 Z_External *r = npr->u.databaseRecord;
893 if (r->which == Z_External_octet)
896 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
898 if (!m_usemarcon->m_stage1)
900 m_usemarcon->m_stage1 = new CDetails();
902 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
903 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
904 int res = m_usemarcon->m_stage1->Start();
909 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
910 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
912 if (!m_usemarcon->m_stage2)
914 m_usemarcon->m_stage2 = new CDetails();
916 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
917 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
918 res = m_usemarcon->m_stage2->Start();
922 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
926 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
929 npr->u.databaseRecord =
930 z_ext_record(odr_encode(),
938 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
944 npr->u.databaseRecord =
945 z_ext_record(odr_encode(),
947 (char*) r->u.octet_aligned->buf,
948 r->u.octet_aligned->len);
955 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
956 const char *backend_charset)
958 yaz_log(YLOG_LOG, "%sconvert_to_marc", m_session_str);
959 int sel = m_charset_converter->get_client_charset_selected();
960 const char *client_record_charset =
961 m_charset_converter->get_client_query_charset();
962 if (sel && backend_charset && client_record_charset &&
963 strcmp(backend_charset, client_record_charset))
966 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
968 yaz_marc_t mt = yaz_marc_create();
969 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
970 yaz_marc_iconv(mt, cd);
971 for (i = 0; i < p->num_records; i++)
973 Z_NamePlusRecord *npr = p->records[i];
974 if (npr->which == Z_NamePlusRecord_databaseRecord)
976 Z_External *r = npr->u.databaseRecord;
977 oident *ent = oid_getentbyoid(r->direct_reference);
978 if (!ent || ent->value == VAL_NONE)
981 if (ent->value == VAL_SUTRS)
983 WRBUF w = wrbuf_alloc();
985 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
986 r->u.octet_aligned->len);
987 npr->u.databaseRecord =
988 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
992 else if (ent->value == VAL_TEXT_XML)
996 else if (r->which == Z_External_octet)
1000 if (yaz_marc_decode_buf(mt,
1001 (char*) r->u.octet_aligned->buf,
1002 r->u.octet_aligned->len,
1005 npr->u.databaseRecord =
1006 z_ext_record(odr_encode(), ent->value, result, rlen);
1007 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1014 yaz_iconv_close(cd);
1015 yaz_marc_destroy(mt);
1019 yaz_log(YLOG_LOG, "%sSkipping marc convert", m_session_str);
1023 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1024 const char *backend_charset)
1027 if (!backend_charset)
1028 backend_charset = "MARC-8";
1029 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1030 yaz_marc_t mt = yaz_marc_create();
1031 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1032 yaz_marc_iconv(mt, cd);
1033 for (i = 0; i < p->num_records; i++)
1035 Z_NamePlusRecord *npr = p->records[i];
1036 if (npr->which == Z_NamePlusRecord_databaseRecord)
1038 Z_External *r = npr->u.databaseRecord;
1039 if (r->which == Z_External_OPAC)
1041 WRBUF w = wrbuf_alloc();
1043 yaz_display_OPAC(w, r->u.opac, 0);
1044 npr->u.databaseRecord = z_ext_record(
1045 odr_encode(), VAL_TEXT_XML,
1046 wrbuf_buf(w), wrbuf_len(w)
1050 else if (r->which == Z_External_octet)
1054 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1055 r->u.octet_aligned->len,
1058 npr->u.databaseRecord =
1059 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1065 yaz_iconv_close(cd);
1066 yaz_marc_destroy(mt);
1069 void Yaz_Proxy::logtime()
1071 #if HAVE_GETTIMEOFDAY
1072 struct timeval *tv = (struct timeval*) m_time_tv;
1076 gettimeofday(&tv1, 0);
1077 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1078 (tv1.tv_usec - tv->tv_usec);
1080 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1081 diff/1000000, (diff/1000)%1000);
1088 int Yaz_Proxy::send_http_response(int code)
1090 ODR o = odr_encode();
1091 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1092 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1094 hres->version = odr_strdup(o, m_http_version);
1095 if (m_http_keepalive)
1096 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1100 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1102 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1106 int r = send_GDU(gdu, &len);
1107 m_bytes_sent += len;
1108 m_bw_stat.add_bytes(len);
1111 recv_GDU_more(true);
1116 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu)
1118 ODR o = odr_encode();
1119 const char *ctype = "text/xml";
1120 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
1121 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1123 hres->version = odr_strdup(o, m_http_version);
1124 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1125 if (m_http_keepalive)
1126 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1130 static Z_SOAP_Handler soap_handlers[2] = {
1132 {"http://www.loc.gov/zing/srw/", 0,
1133 (Z_SOAP_fun) yaz_srw_codec},
1138 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1139 soap_package->which = Z_SOAP_generic;
1140 soap_package->u.generic =
1141 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1142 soap_package->u.generic->no = 0;
1143 soap_package->u.generic->ns = soap_handlers[0].ns;
1144 soap_package->u.generic->p = (void *) srw_pdu;
1145 soap_package->ns = m_soap_ns;
1146 z_soap_codec_enc_xsl(o, &soap_package,
1147 &hres->content_buf, &hres->content_len,
1148 soap_handlers, 0, m_s2z_stylesheet);
1149 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1151 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1155 int r = send_GDU(gdu, &len);
1156 m_bytes_sent += len;
1157 m_bw_stat.add_bytes(len);
1160 recv_GDU_more(true);
1165 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1167 ODR o = odr_encode();
1168 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1169 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1171 srw_res->num_diagnostics = 1;
1172 srw_res->diagnostics = (Z_SRW_diagnostic *)
1173 odr_malloc(o, sizeof(*srw_res->diagnostics));
1174 yaz_mk_std_diagnostic(o, srw_res->diagnostics, srw_error, add);
1175 return send_srw_response(srw_pdu);
1178 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1179 Z_DefaultDiagFormat *ddf)
1181 int bib1_code = *ddf->condition;
1182 if (bib1_code == 109)
1184 srw_res->num_diagnostics = 1;
1185 srw_res->diagnostics = (Z_SRW_diagnostic *)
1186 odr_malloc(o, sizeof(*srw_res->diagnostics));
1187 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1188 yaz_diag_bib1_to_srw(*ddf->condition),
1193 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1195 ODR o = odr_encode();
1196 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1197 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1199 srw_res->numberOfRecords = odr_intdup (o, hits);
1200 if (records && records->which == Z_Records_DBOSD)
1202 srw_res->num_records =
1203 records->u.databaseOrSurDiagnostics->num_records;
1205 srw_res->records = (Z_SRW_record *)
1206 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1207 for (i = 0; i < srw_res->num_records; i++)
1209 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1210 if (npr->which != Z_NamePlusRecord_databaseRecord)
1212 srw_res->records[i].recordSchema = "diagnostic";
1213 srw_res->records[i].recordPacking = m_s2z_packing;
1214 srw_res->records[i].recordData_buf = "67";
1215 srw_res->records[i].recordData_len = 2;
1216 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1219 Z_External *r = npr->u.databaseRecord;
1220 oident *ent = oid_getentbyoid(r->direct_reference);
1221 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1223 srw_res->records[i].recordSchema = m_schema;
1224 srw_res->records[i].recordPacking = m_s2z_packing;
1225 srw_res->records[i].recordData_buf = (char*)
1226 r->u.octet_aligned->buf;
1227 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1228 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1232 srw_res->records[i].recordSchema = "diagnostic";
1233 srw_res->records[i].recordPacking = m_s2z_packing;
1234 srw_res->records[i].recordData_buf = "67";
1235 srw_res->records[i].recordData_len = 2;
1236 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1240 if (records && records->which == Z_Records_NSD)
1243 http_code = z_to_srw_diag(odr_encode(), srw_res,
1244 records->u.nonSurrogateDiagnostic);
1246 return send_http_response(http_code);
1248 return send_srw_response(srw_pdu);
1252 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1253 int num_diagnostics)
1255 Yaz_ProxyConfig *cfg = check_reconfigure();
1259 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1260 m_s2z_database, &len);
1263 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1264 Z_SRW_explainResponse *er = res->u.explain_response;
1266 er->record.recordData_buf = b;
1267 er->record.recordData_len = len;
1268 er->record.recordPacking = m_s2z_packing;
1269 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1271 er->diagnostics = diagnostics;
1272 er->num_diagnostics = num_diagnostics;
1273 return send_srw_response(res);
1276 return send_http_response(404);
1279 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1283 if (apdu->which == Z_APDU_initResponse)
1285 Z_InitResponse *res = apdu->u.initResponse;
1286 if (*res->result == 0)
1288 send_to_srw_client_error(3, 0);
1290 else if (!m_s2z_search_apdu)
1292 send_srw_explain_response(0, 0);
1296 handle_incoming_Z_PDU(m_s2z_search_apdu);
1299 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1301 m_s2z_search_apdu = 0;
1302 Z_SearchResponse *res = apdu->u.searchResponse;
1303 m_s2z_hit_count = *res->resultCount;
1304 if (res->records && res->records->which == Z_Records_NSD)
1306 send_to_srw_client_ok(0, res->records, 1);
1308 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1311 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1313 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1315 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1317 *pr->numberOfRecordsRequested =
1318 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1320 handle_incoming_Z_PDU(m_s2z_present_apdu);
1324 m_s2z_present_apdu = 0;
1325 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1328 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1331 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1333 m_s2z_present_apdu = 0;
1334 Z_PresentResponse *res = apdu->u.presentResponse;
1335 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1341 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1342 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1344 int r = send_Z_PDU(apdu, &len);
1345 m_bytes_sent += len;
1346 m_bw_stat.add_bytes(len);
1353 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1355 int kill_session = 0;
1356 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1359 *new_id = m_referenceId;
1361 if (apdu->which == Z_APDU_searchResponse)
1363 Z_SearchResponse *sr = apdu->u.searchResponse;
1364 Z_Records *p = sr->records;
1365 if (p && p->which == Z_Records_NSD)
1367 Z_DiagRec dr, *dr_p = &dr;
1368 dr.which = Z_DiagRec_defaultFormat;
1369 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1371 *sr->searchStatus = 0;
1372 display_diagrecs(&dr_p, 1);
1376 if (p && p->which == Z_Records_DBOSD)
1380 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1383 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1384 if (m_marcxml_mode == marcxml)
1385 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1388 convert_records_charset(p->u.databaseOrSurDiagnostics,
1390 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1394 if (sr->resultCount)
1396 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1398 if (*sr->resultCount < 0)
1400 m_flag_invalid_session = 1;
1403 *sr->searchStatus = 0;
1405 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1406 *sr->resultCount = 0;
1411 else if (apdu->which == Z_APDU_presentResponse)
1413 Z_PresentResponse *sr = apdu->u.presentResponse;
1414 Z_Records *p = sr->records;
1415 if (p && p->which == Z_Records_NSD)
1417 Z_DiagRec dr, *dr_p = &dr;
1418 dr.which = Z_DiagRec_defaultFormat;
1419 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1420 if (*sr->presentStatus == Z_PresentStatus_success)
1421 *sr->presentStatus = Z_PresentStatus_failure;
1422 display_diagrecs(&dr_p, 1);
1424 if (p && p->which == Z_Records_DBOSD)
1428 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1431 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1432 if (m_marcxml_mode == marcxml)
1433 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1436 convert_records_charset(p->u.databaseOrSurDiagnostics,
1438 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1442 else if (apdu->which == Z_APDU_initResponse)
1444 //Get and check negotiation record
1445 //from init response.
1446 handle_charset_lang_negotiation(apdu);
1448 if (m_initRequest_options)
1451 (Odr_bitmask *)odr_malloc(odr_encode(),
1452 sizeof(Odr_bitmask));
1453 ODR_MASK_ZERO(nopt);
1456 for (i = 0; i<24; i++)
1457 if (ODR_MASK_GET(m_initRequest_options, i) &&
1458 ODR_MASK_GET(apdu->u.initResponse->options, i))
1459 ODR_MASK_SET(nopt, i);
1460 apdu->u.initResponse->options = nopt;
1462 if (m_initRequest_version)
1464 Z_ProtocolVersion *nopt =
1465 (Odr_bitmask *)odr_malloc(odr_encode(),
1466 sizeof(Odr_bitmask));
1467 ODR_MASK_ZERO(nopt);
1470 for (i = 0; i<8; i++)
1471 if (ODR_MASK_GET(m_initRequest_version, i) &&
1472 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1473 ODR_MASK_SET(nopt, i);
1474 apdu->u.initResponse->protocolVersion = nopt;
1476 apdu->u.initResponse->preferredMessageSize =
1477 odr_intdup(odr_encode(),
1478 m_client->m_initResponse_preferredMessageSize >
1479 m_initRequest_preferredMessageSize ?
1480 m_initRequest_preferredMessageSize :
1481 m_client->m_initResponse_preferredMessageSize);
1482 apdu->u.initResponse->maximumRecordSize =
1483 odr_intdup(odr_encode(),
1484 m_client->m_initResponse_maximumRecordSize >
1485 m_initRequest_maximumRecordSize ?
1486 m_initRequest_maximumRecordSize :
1487 m_client->m_initResponse_maximumRecordSize);
1490 int r = send_PDU_convert(apdu);
1497 m_parent->pre_init();
1502 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1505 const char *apdu_name_tmp = apdu_name(apdu);
1506 int r = send_Z_PDU(apdu, &len);
1507 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1508 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1510 apdu_name_tmp, get_hostname(), len);
1511 m_bytes_sent += len;
1515 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1517 if (apdu->which == Z_APDU_presentRequest)
1519 Z_PresentRequest *pr = apdu->u.presentRequest;
1520 int toget = *pr->numberOfRecordsRequested;
1521 int start = *pr->resultSetStartPoint;
1523 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1524 pr->resultSetId, start, toget);
1526 if (*m_parent->m_optimize == '0')
1529 if (!m_client->m_last_resultSetId)
1531 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1532 new_apdu->u.presentResponse->records =
1533 create_nonSurrogateDiagnostics(odr_encode(), 30,
1535 send_to_client(new_apdu);
1538 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1540 if (start+toget-1 > m_client->m_last_resultCount)
1542 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1543 new_apdu->u.presentResponse->records =
1544 create_nonSurrogateDiagnostics(odr_encode(), 13, 0);
1545 send_to_client(new_apdu);
1548 Z_NamePlusRecordList *npr;
1550 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1551 m_session_str, start, toget, yaz_z3950oid_to_str(
1552 pr->preferredRecordSyntax, &oclass));
1554 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1555 pr->preferredRecordSyntax,
1556 pr->recordComposition))
1558 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1560 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1561 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1563 new_apdu->u.presentResponse->numberOfRecordsReturned
1564 = odr_intdup(odr_encode(), toget);
1566 new_apdu->u.presentResponse->records = (Z_Records*)
1567 odr_malloc(odr_encode(), sizeof(Z_Records));
1568 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1569 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1570 new_apdu->u.presentResponse->nextResultSetPosition =
1571 odr_intdup(odr_encode(), start+toget);
1573 send_to_client(new_apdu);
1579 if (apdu->which != Z_APDU_searchRequest)
1581 Z_SearchRequest *sr = apdu->u.searchRequest;
1582 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1583 Yaz_Z_Databases this_databases;
1585 this_databases.set(sr->num_databaseNames, (const char **)
1588 this_query->set_Z_Query(sr->query);
1590 char query_str[120];
1591 this_query->print(query_str, sizeof(query_str)-1);
1592 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1594 if (*m_parent->m_optimize != '0' &&
1595 m_client->m_last_ok && m_client->m_last_query &&
1596 m_client->m_last_query->match(this_query) &&
1597 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1598 m_client->m_last_databases.match(this_databases))
1601 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1602 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1604 Z_NamePlusRecordList *npr;
1605 int toget = *sr->mediumSetPresentNumber;
1606 Z_RecordComposition *comp = 0;
1608 if (toget > m_client->m_last_resultCount)
1609 toget = m_client->m_last_resultCount;
1611 if (sr->mediumSetElementSetNames)
1613 comp = (Z_RecordComposition *)
1614 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1615 comp->which = Z_RecordComp_simple;
1616 comp->u.simple = sr->mediumSetElementSetNames;
1619 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1620 sr->preferredRecordSyntax, comp))
1622 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1624 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1625 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1626 new_apdu->u.searchResponse->resultCount =
1627 &m_client->m_last_resultCount;
1629 new_apdu->u.searchResponse->numberOfRecordsReturned
1630 = odr_intdup(odr_encode(), toget);
1632 new_apdu->u.searchResponse->presentStatus =
1633 odr_intdup(odr_encode(), Z_PresentStatus_success);
1634 new_apdu->u.searchResponse->records = (Z_Records*)
1635 odr_malloc(odr_encode(), sizeof(Z_Records));
1636 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1637 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1638 new_apdu->u.searchResponse->nextResultSetPosition =
1639 odr_intdup(odr_encode(), toget+1);
1640 send_to_client(new_apdu);
1646 // send present request (medium size)
1647 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1650 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1651 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1652 pr->referenceId = sr->referenceId;
1653 pr->resultSetId = sr->resultSetName;
1654 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1655 *pr->numberOfRecordsRequested = toget;
1656 pr->recordComposition = comp;
1657 m_client->m_sr_transform = 1;
1661 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1662 m_client->m_last_resultCount <= 0)
1664 // large set. Return pseudo-search response immediately
1665 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1667 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1668 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1669 new_apdu->u.searchResponse->resultCount =
1670 &m_client->m_last_resultCount;
1671 send_to_client(new_apdu);
1676 Z_NamePlusRecordList *npr;
1677 int toget = m_client->m_last_resultCount;
1678 Z_RecordComposition *comp = 0;
1680 // send a present request (small set)
1682 if (sr->smallSetElementSetNames)
1684 comp = (Z_RecordComposition *)
1685 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1686 comp->which = Z_RecordComp_simple;
1687 comp->u.simple = sr->smallSetElementSetNames;
1690 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1691 sr->preferredRecordSyntax, comp))
1693 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1695 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1696 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1697 new_apdu->u.searchResponse->resultCount =
1698 &m_client->m_last_resultCount;
1700 new_apdu->u.searchResponse->numberOfRecordsReturned
1701 = odr_intdup(odr_encode(), toget);
1703 new_apdu->u.searchResponse->presentStatus =
1704 odr_intdup(odr_encode(), Z_PresentStatus_success);
1705 new_apdu->u.searchResponse->records = (Z_Records*)
1706 odr_malloc(odr_encode(), sizeof(Z_Records));
1707 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1708 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1709 new_apdu->u.searchResponse->nextResultSetPosition =
1710 odr_intdup(odr_encode(), toget+1);
1711 send_to_client(new_apdu);
1716 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1718 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1719 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1720 pr->referenceId = sr->referenceId;
1721 pr->resultSetId = sr->resultSetName;
1722 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1723 *pr->numberOfRecordsRequested = toget;
1724 pr->recordComposition = comp;
1725 m_client->m_sr_transform = 1;
1730 else // query doesn't match
1732 delete m_client->m_last_query;
1733 m_client->m_last_query = this_query;
1734 m_client->m_last_ok = 0;
1735 m_client->m_cache.clear();
1736 m_client->m_resultSetStartPoint = 0;
1738 xfree (m_client->m_last_resultSetId);
1739 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1741 m_client->m_last_databases.set(sr->num_databaseNames,
1742 (const char **) sr->databaseNames);
1748 void Yaz_Proxy::inc_request_no()
1750 char *cp = strchr(m_session_str, ' ');
1753 sprintf(cp+1, "%d ", m_request_no);
1756 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1760 m_bytes_recv += len;
1762 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1763 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1764 m_session_str, gdu_name(apdu), len);
1766 #if HAVE_GETTIMEOFDAY
1767 gettimeofday((struct timeval *) m_time_tv, 0);
1769 m_bw_stat.add_bytes(len);
1770 m_pdu_stat.add_bytes(1);
1772 GDU *gdu = new GDU(apdu);
1773 m_in_queue.enqueue(gdu);
1775 recv_GDU_more(false);
1778 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1780 int bw_total = m_bw_stat.get_total();
1781 int pdu_total = m_pdu_stat.get_total();
1784 assert(m_timeout_mode == timeout_busy);
1785 assert(m_timeout_gdu == 0);
1789 if (bw_total > m_bw_max)
1791 reduce = (bw_total/m_bw_max);
1796 if (pdu_total > m_pdu_max)
1798 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
1799 reduce = (reduce > nreduce) ? reduce : nreduce;
1805 /* uncomment to force a big reduce */
1806 m_timeout_mode = timeout_reduce;
1807 m_timeout_gdu = gdu;
1808 timeout(3); // call us reduce seconds later
1813 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d limit-bw=%d limit-pdu=%d",
1814 m_session_str, reduce, bw_total, pdu_total,
1815 m_bw_max, m_pdu_max);
1817 m_timeout_mode = timeout_reduce;
1818 m_timeout_gdu = gdu;
1819 timeout(reduce); // call us reduce seconds later
1822 recv_GDU_normal(gdu);
1825 void Yaz_Proxy::recv_GDU_more(bool normal)
1828 if (normal && m_timeout_mode == timeout_busy)
1829 m_timeout_mode = timeout_normal;
1830 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
1832 m_timeout_mode = timeout_busy;
1837 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
1840 gdu->move_away_gdu(odr_decode(), &apdu);
1843 if (apdu->which == Z_GDU_Z3950)
1844 handle_incoming_Z_PDU(apdu->u.z3950);
1845 else if (apdu->which == Z_GDU_HTTP_Request)
1846 handle_incoming_HTTP(apdu->u.HTTP_Request);
1849 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
1851 if (m_max_record_retrieve)
1853 if (apdu->which == Z_APDU_presentRequest)
1855 Z_PresentRequest *pr = apdu->u.presentRequest;
1856 if (pr->numberOfRecordsRequested &&
1857 *pr->numberOfRecordsRequested > m_max_record_retrieve)
1858 *pr->numberOfRecordsRequested = m_max_record_retrieve;
1863 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
1865 if (apdu->which == Z_APDU_initRequest)
1867 yaz_log(YLOG_LOG, "%shandle_charset_lang_negotiation",
1869 if (m_initRequest_options &&
1870 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
1871 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
1873 // There is no negotiation proposal from
1874 // client's side. OK. The proxy negotiation
1876 Z_InitRequest *initRequest = apdu->u.initRequest;
1877 Z_OtherInformation **otherInfo;
1878 Z_OtherInformationUnit *oi;
1879 get_otherInfoAPDU(apdu, &otherInfo);
1880 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
1883 ODR_MASK_SET(initRequest->options,
1884 Z_Options_negotiationModel);
1885 oi->which = Z_OtherInfo_externallyDefinedInfo;
1886 oi->information.externallyDefinedInfo =
1887 yaz_set_proposal_charneg(odr_encode(),
1888 (const char**)&m_proxy_negotiation_charset,
1889 m_proxy_negotiation_charset ? 1:0,
1890 (const char**)&m_proxy_negotiation_lang,
1891 m_proxy_negotiation_lang ? 1:0,
1895 else if (m_initRequest_options &&
1896 ODR_MASK_GET(m_initRequest_options,
1897 Z_Options_negotiationModel) &&
1898 m_charset_converter->get_target_query_charset())
1900 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
1902 m_charset_converter->get_target_query_charset());
1903 Z_InitRequest *initRequest = apdu->u.initRequest;
1904 Z_CharSetandLanguageNegotiation *negotiation =
1905 yaz_get_charneg_record (initRequest->otherInfo);
1907 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1909 NMEM nmem = nmem_create();
1910 char **charsets = 0;
1911 int num_charsets = 0;
1915 yaz_get_proposal_charneg (nmem, negotiation,
1916 &charsets, &num_charsets,
1917 &langs, &num_langs, &selected);
1919 for (i = 0; i<num_charsets; i++)
1920 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
1922 for (i = 0; i<num_langs; i++)
1923 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
1926 const char *t_charset =
1927 m_charset_converter->get_target_query_charset();
1928 // sweep through charsets and pick the first supported
1930 for (i = 0; i<num_charsets; i++)
1932 const char *c_charset = charsets[i];
1933 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
1936 if (i != num_charsets)
1938 // got one .. set up ODR for reverse direction
1939 const char *c_charset = charsets[i];
1940 odr_set_charset(odr_encode(), c_charset, t_charset);
1941 m_charset_converter->set_client_query_charset(c_charset);
1942 m_charset_converter->set_client_charset_selected(selected);
1945 ODR_MASK_CLEAR(m_initRequest_options,
1946 Z_Options_negotiationModel);
1947 yaz_del_charneg_record(&initRequest->otherInfo);
1951 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
1956 else if (apdu->which == Z_APDU_initResponse)
1958 Z_InitResponse *initResponse = apdu->u.initResponse;
1959 Z_OtherInformation **otherInfo;
1961 if (ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel))
1967 get_otherInfoAPDU(apdu, &otherInfo);
1969 if (!otherInfo && !(*otherInfo))
1972 Z_CharSetandLanguageNegotiation *charneg =
1973 yaz_get_charneg_record(*otherInfo);
1978 yaz_get_response_charneg(m_referenceId_mem, charneg,
1979 &charset, &lang, &selected);
1981 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
1982 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
1984 if (m_initRequest_options &&
1985 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
1987 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
1990 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
1992 // negotiation-charset, negotiation-lang
1993 // elements of config file in use.
1995 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
1998 // clear negotiation option.
1999 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2001 // Delete negotiation (charneg-3) entry.
2002 yaz_del_charneg_record(otherInfo);
2007 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2009 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2012 else if (m_charset_converter->get_client_query_charset())
2014 Z_OtherInformation **otherInfo;
2015 Z_OtherInformationUnit *oi;
2016 get_otherInfoAPDU(apdu, &otherInfo);
2017 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2020 ODR_MASK_SET(initResponse->options,
2021 Z_Options_negotiationModel);
2022 if (m_initRequest_options)
2023 ODR_MASK_SET(m_initRequest_options,
2024 Z_Options_negotiationModel);
2026 oi->which = Z_OtherInfo_externallyDefinedInfo;
2027 oi->information.externallyDefinedInfo =
2028 yaz_set_response_charneg(
2030 m_charset_converter->get_client_query_charset(),
2032 m_charset_converter->get_client_charset_selected());
2039 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2041 const char *addinfo)
2043 Z_Records *rec = (Z_Records *)
2044 odr_malloc (odr, sizeof(*rec));
2046 odr_malloc (odr, sizeof(*err));
2047 Z_DiagRec *drec = (Z_DiagRec *)
2048 odr_malloc (odr, sizeof(*drec));
2049 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2050 odr_malloc (odr, sizeof(*dr));
2052 rec->which = Z_Records_NSD;
2053 rec->u.nonSurrogateDiagnostic = dr;
2054 dr->diagnosticSetId =
2055 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2056 dr->condition = err;
2057 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2058 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2062 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2064 if (apdu->which == Z_APDU_searchRequest &&
2065 apdu->u.searchRequest->query &&
2066 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2067 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2069 Z_RPNQuery *rpnquery = 0;
2070 Z_SearchRequest *sr = apdu->u.searchRequest;
2073 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2074 sr->query->u.type_104->u.cql);
2076 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2077 &rpnquery, odr_encode(),
2080 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2083 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2084 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2086 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2087 new_apdu->u.searchResponse->records =
2088 create_nonSurrogateDiagnostics(odr_encode(),
2089 yaz_diag_srw_to_bib1(r),
2091 *new_apdu->u.searchResponse->searchStatus = 0;
2093 send_to_client(new_apdu);
2099 sr->query->which = Z_Query_type_1;
2100 sr->query->u.type_1 = rpnquery;
2107 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2109 if (apdu->which == Z_APDU_searchRequest &&
2110 apdu->u.searchRequest->query)
2112 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2113 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2116 m_charset_converter->set_client_query_charset("UTF-8");
2117 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2118 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2125 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2127 if (apdu->which == Z_APDU_searchRequest)
2129 Z_SearchRequest *sr = apdu->u.searchRequest;
2133 Yaz_ProxyConfig *cfg = check_reconfigure();
2135 err = cfg->check_query(odr_encode(), m_default_target,
2136 sr->query, &addinfo);
2139 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2141 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2142 new_apdu->u.searchResponse->records =
2143 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2144 *new_apdu->u.searchResponse->searchStatus = 0;
2146 send_to_client(new_apdu);
2154 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2156 if (apdu->which != Z_APDU_initRequest)
2157 return 1; // pass if no init request
2158 Z_InitRequest *req = apdu->u.initRequest;
2160 Yaz_ProxyConfig *cfg = check_reconfigure();
2162 return 1; // pass if no config
2165 if (req->idAuthentication == 0)
2167 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2170 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2172 ret = cfg->client_authentication(
2174 req->idAuthentication->u.idPass->userId,
2175 req->idAuthentication->u.idPass->groupId,
2176 req->idAuthentication->u.idPass->password,
2179 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2181 char user[64], pass[64];
2184 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2185 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2189 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2192 cfg->target_authentication(m_default_target, odr_encode(), req);
2197 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2199 m_marcxml_mode = none;
2200 if (apdu->which == Z_APDU_searchRequest)
2202 Z_SearchRequest *sr = apdu->u.searchRequest;
2205 Yaz_ProxyConfig *cfg = check_reconfigure();
2207 Z_RecordComposition rc_temp, *rc = 0;
2208 if (sr->smallSetElementSetNames)
2210 rc_temp.which = Z_RecordComp_simple;
2211 rc_temp.u.simple = sr->smallSetElementSetNames;
2215 if (sr->preferredRecordSyntax)
2218 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2219 m_frontend_type = ent->value;
2222 m_frontend_type = VAL_NONE;
2224 char *stylesheet_name = 0;
2226 err = cfg->check_syntax(odr_encode(),
2228 sr->preferredRecordSyntax, rc,
2229 &addinfo, &stylesheet_name, &m_schema,
2230 &m_backend_type, &m_backend_charset,
2231 &m_usemarcon_ini_stage1,
2232 &m_usemarcon_ini_stage2);
2233 if (stylesheet_name)
2235 m_parent->low_socket_close();
2238 if (m_stylesheet_xsp)
2239 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2240 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2243 m_stylesheet_offset = 0;
2244 xfree(stylesheet_name);
2246 m_parent->low_socket_open();
2250 sr->smallSetElementSetNames = 0;
2251 sr->mediumSetElementSetNames = 0;
2252 m_marcxml_mode = marcxml;
2256 sr->preferredRecordSyntax =
2257 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2261 sr->preferredRecordSyntax =
2262 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2267 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2269 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2270 new_apdu->u.searchResponse->records =
2271 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2272 *new_apdu->u.searchResponse->searchStatus = 0;
2274 send_to_client(new_apdu);
2278 else if (m_backend_type)
2280 sr->preferredRecordSyntax =
2281 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2284 else if (apdu->which == Z_APDU_presentRequest)
2286 Z_PresentRequest *pr = apdu->u.presentRequest;
2289 Yaz_ProxyConfig *cfg = check_reconfigure();
2291 if (pr->preferredRecordSyntax)
2294 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2295 m_frontend_type = ent->value;
2298 m_frontend_type = VAL_NONE;
2300 char *stylesheet_name = 0;
2302 err = cfg->check_syntax(odr_encode(), m_default_target,
2303 pr->preferredRecordSyntax,
2304 pr->recordComposition,
2305 &addinfo, &stylesheet_name, &m_schema,
2306 &m_backend_type, &m_backend_charset,
2307 &m_usemarcon_ini_stage1,
2308 &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 pr->recordComposition = 0;
2328 m_marcxml_mode = marcxml;
2332 pr->preferredRecordSyntax =
2333 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2337 pr->preferredRecordSyntax =
2338 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2343 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2345 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2346 new_apdu->u.presentResponse->records =
2347 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2348 *new_apdu->u.presentResponse->presentStatus =
2349 Z_PresentStatus_failure;
2351 send_to_client(new_apdu);
2355 else if (m_backend_type)
2357 pr->preferredRecordSyntax =
2358 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2364 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2368 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2369 odr_malloc(o, sizeof(Z_ElementSetNames));
2370 esn->which = Z_ElementSetNames_generic;
2371 esn->u.generic = odr_strdup(o, schema);
2375 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2378 Yaz_ProxyConfig *cfg = check_reconfigure();
2380 t = cfg->get_explain_name(db, backend_db);
2382 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2389 xfree(m_default_target);
2390 m_default_target = xstrdup(t);
2394 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2397 if (strcmp(hreq->method, "GET"))
2399 if (hreq->path[0] != '/')
2401 yaz_log(YLOG_WARN, "Bad path: %s", hreq->path);
2404 const char *cp = hreq->path;
2407 if (*cp == '/' && strchr("/.", cp[1]))
2409 yaz_log(YLOG_WARN, "Bad path: %s", hreq->path);
2414 const char *fname = hreq->path+1;
2415 if (stat(fname, &sbuf))
2417 yaz_log(YLOG_WARN|YLOG_ERRNO, "%s: stat failed", fname);
2420 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2422 yaz_log(YLOG_WARN, "%s: not a regular file", fname);
2425 if (sbuf.st_size > (off_t) 1000000)
2427 yaz_log(YLOG_WARN, "%s: too large for transfer", fname);
2431 ODR o = odr_encode();
2432 Yaz_ProxyConfig *cfg = check_reconfigure();
2433 const char *ctype = cfg->check_mime_type(fname);
2434 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2435 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2437 hres->version = odr_strdup(o, m_http_version);
2438 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2439 if (m_http_keepalive)
2440 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2444 hres->content_len = sbuf.st_size;
2445 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2446 FILE *f = fopen(fname, "rb");
2449 fread(hres->content_buf, 1, hres->content_len, f);
2456 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2458 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2462 send_GDU(gdu, &len);
2463 recv_GDU_more(true);
2467 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2471 odr_destroy(m_s2z_odr_init);
2474 if (m_s2z_odr_search)
2476 odr_destroy(m_s2z_odr_search);
2477 m_s2z_odr_search = 0;
2480 m_http_keepalive = 0;
2482 if (!strcmp(hreq->version, "1.0"))
2484 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2485 if (v && !strcmp(v, "Keep-Alive"))
2486 m_http_keepalive = 1;
2488 m_http_keepalive = 0;
2489 m_http_version = "1.0";
2493 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2494 if (v && !strcmp(v, "close"))
2495 m_http_keepalive = 0;
2497 m_http_keepalive = 1;
2498 m_http_version = "1.1";
2501 Z_SRW_PDU *srw_pdu = 0;
2502 Z_SOAP *soap_package = 0;
2504 Z_SRW_diagnostic *diagnostic = 0;
2505 int num_diagnostic = 0;
2507 if (file_access(hreq))
2511 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2513 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2514 &charset, &diagnostic, &num_diagnostic) == 0)
2516 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2517 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2518 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2519 m_s2z_init_apdu = 0;
2520 m_s2z_search_apdu = 0;
2521 m_s2z_present_apdu = 0;
2523 m_s2z_stylesheet = 0;
2525 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2527 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2529 const char *backend_db = srw_req->database;
2530 srw_get_client(srw_req->database, &backend_db);
2532 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2533 // recordXPath unsupported.
2534 if (srw_req->recordXPath)
2536 yaz_add_srw_diagnostic(odr_decode(),
2537 &diagnostic, &num_diagnostic,
2541 if (srw_req->sort_type != Z_SRW_sort_type_none)
2543 yaz_add_srw_diagnostic(odr_decode(),
2544 &diagnostic, &num_diagnostic,
2548 if (srw_req->stylesheet)
2550 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2552 // set packing for response records ..
2553 if (srw_req->recordPacking &&
2554 !strcmp(srw_req->recordPacking, "xml"))
2555 m_s2z_packing = Z_SRW_recordPacking_XML;
2557 m_s2z_packing = Z_SRW_recordPacking_string;
2561 Z_SRW_PDU *srw_pdu =
2562 yaz_srw_get(odr_encode(),
2563 Z_SRW_searchRetrieve_response);
2564 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2566 srw_res->diagnostics = diagnostic;
2567 srw_res->num_diagnostics = num_diagnostic;
2568 send_srw_response(srw_pdu);
2572 // prepare search PDU
2573 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2574 Z_APDU_searchRequest);
2575 Z_SearchRequest *z_searchRequest =
2576 m_s2z_search_apdu->u.searchRequest;
2578 z_searchRequest->num_databaseNames = 1;
2579 z_searchRequest->databaseNames = (char**)
2580 odr_malloc(m_s2z_odr_search, sizeof(char *));
2581 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2584 // query transformation
2585 Z_Query *query = (Z_Query *)
2586 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2587 z_searchRequest->query = query;
2589 if (srw_req->query_type == Z_SRW_query_type_cql)
2591 Z_External *ext = (Z_External *)
2592 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2593 ext->direct_reference =
2594 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2595 ext->indirect_reference = 0;
2596 ext->descriptor = 0;
2597 ext->which = Z_External_CQL;
2598 ext->u.cql = srw_req->query.cql;
2600 query->which = Z_Query_type_104;
2601 query->u.type_104 = ext;
2603 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2605 Z_RPNQuery *RPNquery;
2606 YAZ_PQF_Parser pqf_parser;
2608 pqf_parser = yaz_pqf_create ();
2610 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2611 srw_req->query.pqf);
2614 const char *pqf_msg;
2616 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2618 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2619 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2621 send_to_srw_client_error(10, 0);
2624 query->which = Z_Query_type_1;
2625 query->u.type_1 = RPNquery;
2627 yaz_pqf_destroy (pqf_parser);
2631 send_to_srw_client_error(7, "query");
2636 m_s2z_present_apdu = 0;
2638 if (srw_req->maximumRecords)
2639 max = *srw_req->maximumRecords;
2641 if (srw_req->startRecord)
2642 start = *srw_req->startRecord;
2645 // Some backend, such as Voyager doesn't honor piggyback
2646 // So we use present always (0 &&).
2647 if (0 && start <= 1) // Z39.50 piggyback
2649 *z_searchRequest->smallSetUpperBound = max;
2650 *z_searchRequest->mediumSetPresentNumber = max;
2651 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2653 z_searchRequest->preferredRecordSyntax =
2654 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2656 if (srw_req->recordSchema)
2658 z_searchRequest->smallSetElementSetNames =
2659 z_searchRequest->mediumSetElementSetNames =
2660 mk_esn_from_schema(m_s2z_odr_search,
2661 srw_req->recordSchema);
2664 else // Z39.50 present
2666 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2667 Z_APDU_presentRequest);
2668 Z_PresentRequest *z_presentRequest =
2669 m_s2z_present_apdu->u.presentRequest;
2670 *z_presentRequest->resultSetStartPoint = start;
2671 *z_presentRequest->numberOfRecordsRequested = max;
2672 z_presentRequest->preferredRecordSyntax =
2673 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2675 if (srw_req->recordSchema)
2677 z_presentRequest->recordComposition =
2678 (Z_RecordComposition *)
2679 odr_malloc(m_s2z_odr_search,
2680 sizeof(Z_RecordComposition));
2681 z_presentRequest->recordComposition->which =
2682 Z_RecordComp_simple;
2683 z_presentRequest->recordComposition->u.simple =
2684 mk_esn_from_schema(m_s2z_odr_search,
2685 srw_req->recordSchema);
2691 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2692 Z_APDU_initRequest);
2694 // prevent m_initRequest_apdu memory from being grabbed
2695 // in Yaz_Proxy::handle_incoming_Z_PDU
2696 m_initRequest_apdu = m_s2z_init_apdu;
2697 handle_incoming_Z_PDU(m_s2z_init_apdu);
2702 handle_incoming_Z_PDU(m_s2z_search_apdu);
2706 else if (srw_pdu->which == Z_SRW_explain_request)
2708 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2710 const char *backend_db = srw_req->database;
2711 srw_get_client(srw_req->database, &backend_db);
2713 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2716 if (srw_req->stylesheet)
2718 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2720 if (srw_req->recordPacking &&
2721 !strcmp(srw_req->recordPacking, "xml"))
2722 m_s2z_packing = Z_SRW_recordPacking_XML;
2724 m_s2z_packing = Z_SRW_recordPacking_string;
2728 send_srw_explain_response(diagnostic, num_diagnostic);
2734 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2735 Z_APDU_initRequest);
2737 // prevent m_initRequest_apdu memory from being grabbed
2738 // in Yaz_Proxy::handle_incoming_Z_PDU
2739 m_initRequest_apdu = m_s2z_init_apdu;
2740 handle_incoming_Z_PDU(m_s2z_init_apdu);
2743 send_srw_explain_response(0, 0);
2746 else if (srw_pdu->which == Z_SRW_scan_request)
2748 m_s2z_database = odr_strdup(m_s2z_odr_init,
2749 srw_pdu->u.scan_request->database);
2751 yaz_add_srw_diagnostic(odr_decode(),
2752 &diagnostic, &num_diagnostic,
2754 Z_SRW_PDU *srw_pdu =
2755 yaz_srw_get(odr_encode(),
2756 Z_SRW_scan_response);
2757 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
2759 srw_res->diagnostics = diagnostic;
2760 srw_res->num_diagnostics = num_diagnostic;
2761 send_srw_response(srw_pdu);
2768 send_to_srw_client_error(4, 0);
2771 send_http_response(400);
2774 void Yaz_Proxy::handle_init(Z_APDU *apdu)
2776 Z_OtherInformation **oi;
2777 get_otherInfoAPDU(apdu, &oi);
2779 if (apdu->u.initRequest->implementationId)
2780 yaz_log(YLOG_LOG, "%simplementationId: %s",
2781 m_session_str, apdu->u.initRequest->implementationId);
2782 if (apdu->u.initRequest->implementationName)
2783 yaz_log(YLOG_LOG, "%simplementationName: %s",
2784 m_session_str, apdu->u.initRequest->implementationName);
2785 if (apdu->u.initRequest->implementationVersion)
2786 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
2787 m_session_str, apdu->u.initRequest->implementationVersion);
2788 if (m_initRequest_apdu == 0)
2790 if (m_initRequest_mem)
2791 nmem_destroy(m_initRequest_mem);
2793 m_initRequest_apdu = apdu;
2794 m_initRequest_mem = odr_extract_mem(odr_decode());
2796 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
2797 preferredMessageSize;
2798 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
2799 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
2801 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
2803 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
2804 yaz_get_charneg_record(*oi);
2806 // Save proposal charsets and langs.
2807 if (ODR_MASK_GET(apdu->u.initRequest->options,
2808 Z_Options_negotiationModel)
2809 && charSetandLangRecord)
2812 yaz_get_proposal_charneg(m_referenceId_mem,
2813 charSetandLangRecord,
2814 &m_initRequest_oi_negotiation_charsets,
2815 &m_initRequest_oi_negotiation_num_charsets,
2816 &m_initRequest_oi_negotiation_langs,
2817 &m_initRequest_oi_negotiation_num_langs,
2818 &m_initRequest_oi_negotiation_selected);
2820 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
2822 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
2823 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
2824 m_initRequest_oi_negotiation_charsets[i]:"none");
2826 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
2828 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
2829 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
2830 m_initRequest_oi_negotiation_langs[i]:"none");
2832 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
2833 m_session_str, m_initRequest_oi_negotiation_selected);
2835 // save init options for the response..
2836 m_initRequest_options = apdu->u.initRequest->options;
2838 apdu->u.initRequest->options =
2839 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2840 sizeof(Odr_bitmask));
2841 ODR_MASK_ZERO(apdu->u.initRequest->options);
2843 for (i = 0; i<= 24; i++)
2844 ODR_MASK_SET(apdu->u.initRequest->options, i);
2845 // check negotiation option
2846 if (!ODR_MASK_GET(m_initRequest_options,
2847 Z_Options_negotiationModel))
2849 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2850 Z_Options_negotiationModel);
2852 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2853 Z_Options_concurrentOperations);
2855 m_initRequest_version = apdu->u.initRequest->protocolVersion;
2856 apdu->u.initRequest->protocolVersion =
2857 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2858 sizeof(Odr_bitmask));
2859 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
2861 for (i = 0; i<= 8; i++)
2862 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
2864 if (m_client->m_init_flag)
2866 if (handle_init_response_for_invalid_session(apdu))
2868 if (m_client->m_initResponse)
2870 Z_APDU *apdu2 = m_client->m_initResponse;
2871 apdu2->u.initResponse->otherInfo = 0;
2872 if (m_client->m_cookie && *m_client->m_cookie)
2873 set_otherInformationString(apdu2, VAL_COOKIE, 1,
2874 m_client->m_cookie);
2875 apdu2->u.initResponse->referenceId =
2876 apdu->u.initRequest->referenceId;
2877 apdu2->u.initResponse->options = m_client->m_initResponse_options;
2878 apdu2->u.initResponse->protocolVersion =
2879 m_client->m_initResponse_version;
2881 send_to_client(apdu2);
2882 m_timeout_mode = timeout_normal;
2886 m_client->m_init_flag = 1;
2889 yaz_log(YLOG_LOG, "%suse_auth_msg", m_session_str);
2890 Auth_Msg *m = new Auth_Msg;
2892 z_APDU(odr_encode(), &apdu, 0, "encode");
2893 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
2894 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
2895 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
2896 odr_reset(odr_encode());
2899 m_my_thread->put(m);
2901 int ret = handle_authentication(apdu);
2902 result_authentication(apdu, ret);
2906 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
2908 Z_ReferenceId **refid = get_referenceIdP(apdu);
2909 nmem_reset(m_referenceId_mem);
2910 if (refid && *refid)
2912 m_referenceId = (Z_ReferenceId *)
2913 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
2914 m_referenceId->len = m_referenceId->size = (*refid)->len;
2915 m_referenceId->buf = (unsigned char *)
2916 nmem_malloc(m_referenceId_mem, (*refid)->len);
2917 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
2922 if (!m_client && m_flag_invalid_session)
2924 // Got request for a session that is invalid..
2925 m_apdu_invalid_session = apdu; // save package
2926 m_mem_invalid_session = odr_extract_mem(odr_decode());
2927 apdu = m_initRequest_apdu; // but throw an init to the target
2930 // Determine our client.
2931 Z_OtherInformation **oi;
2932 get_otherInfoAPDU(apdu, &oi);
2933 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
2937 { // HTTP. Send not found
2938 send_http_response(404);
2943 // Z39.50 just shutdown
2949 m_client->m_server = this;
2951 if (apdu->which == Z_APDU_initRequest)
2954 handle_incoming_Z_PDU_2(apdu);
2957 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
2959 handle_max_record_retrieve(apdu);
2962 apdu = handle_syntax_validation(apdu);
2965 apdu = handle_query_transformation(apdu);
2968 apdu = handle_target_charset_conversion(apdu);
2971 apdu = handle_query_validation(apdu);
2974 apdu = result_set_optimize(apdu);
2978 m_client->timeout(m_target_idletime); // mark it active even
2979 recv_GDU_more(true);
2980 // though we didn't use it
2983 // Add otherInformation entry in APDU if
2984 // negotiation is in use.
2986 handle_charset_lang_negotiation(apdu);
2988 // delete other info construct completely if 0 elements
2989 Z_OtherInformation **oi;
2990 get_otherInfoAPDU(apdu, &oi);
2991 if (oi && *oi && (*oi)->num_elements == 0)
2994 if (apdu->which == Z_APDU_presentRequest &&
2995 m_client->m_resultSetStartPoint == 0)
2997 Z_PresentRequest *pr = apdu->u.presentRequest;
2998 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
2999 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3001 m_client->m_resultSetStartPoint = 0;
3003 if (m_client->send_to_target(apdu) < 0)
3005 m_client->shutdown();
3008 m_client->m_waiting = 1;
3011 void Yaz_Proxy::connectNotify()
3015 void Yaz_Proxy::releaseClient()
3017 xfree(m_proxyTarget);
3019 m_flag_invalid_session = 0;
3020 // only keep if keep_alive flag is set...
3022 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3023 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3024 m_client->m_waiting == 0)
3026 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3028 m_client->get_hostname());
3029 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3030 m_session_str, m_client->m_pdu_recv,
3031 m_client->m_bytes_sent + m_client->m_bytes_recv,
3032 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3033 assert (m_client->m_waiting != 2);
3034 // Tell client (if any) that no server connection is there..
3035 m_client->m_server = 0;
3040 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3042 m_client->get_hostname());
3043 assert (m_client->m_waiting != 2);
3049 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3055 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3059 m_parent->pre_init();
3062 bool Yaz_Proxy::dec_ref()
3064 yaz_log(YLOG_LOG, "%sdec_ref count=%d", m_session_str, m_ref_count);
3065 assert(m_ref_count > 0);
3068 if (m_ref_count > 0)
3077 const char *Yaz_ProxyClient::get_session_str()
3081 return m_server->get_session_str();
3084 void Yaz_ProxyClient::shutdown()
3086 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3091 m_waiting = 1; // ensure it's released from Proxy in releaseClient
3092 m_server->dec_ref();
3098 void Yaz_Proxy::failNotify()
3101 yaz_log (YLOG_LOG, "%sConnection closed by client",
3106 void Yaz_ProxyClient::failNotify()
3109 m_server->inc_request_no();
3110 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3111 get_session_str(), get_hostname());
3115 void Yaz_ProxyClient::connectNotify()
3117 const char *s = get_session_str();
3118 const char *h = get_hostname();
3119 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3121 timeout(m_target_idletime);
3126 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3127 *the_PDU_Observable, int fd)
3129 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3132 Yaz_ProxyClient::~Yaz_ProxyClient()
3137 m_next->m_prev = m_prev;
3138 m_waiting = 2; // for debugging purposes only.
3139 odr_destroy(m_init_odr);
3140 delete m_last_query;
3141 xfree (m_last_resultSetId);
3145 void Yaz_ProxyClient::pre_init_client()
3147 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3148 Z_InitRequest *req = apdu->u.initRequest;
3151 for (i = 0; i<= 24; i++)
3152 ODR_MASK_SET(req->options, i);
3153 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3154 Z_Options_negotiationModel);
3155 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3156 Z_Options_concurrentOperations);
3157 for (i = 0; i<= 10; i++)
3158 ODR_MASK_SET(req->protocolVersion, i);
3160 if (send_to_target(apdu) < 0)
3171 void Yaz_Proxy::pre_init()
3174 const char *name = 0;
3175 const char *zurl_in_use[MAX_ZURL_PLEX];
3176 int limit_bw, limit_pdu, limit_req, limit_search, limit_connect;
3177 int target_idletime, client_idletime;
3179 int keepalive_limit_bw, keepalive_limit_pdu;
3181 const char *cql2rpn = 0;
3182 const char *authentication = 0;
3183 const char *negotiation_charset = 0;
3184 const char *negotiation_lang = 0;
3186 Yaz_ProxyConfig *cfg = check_reconfigure();
3190 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3195 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3196 &limit_bw, &limit_pdu, &limit_req,
3197 &limit_search, &limit_connect,
3198 &target_idletime, &client_idletime,
3200 &keepalive_limit_bw,
3201 &keepalive_limit_pdu,
3205 &negotiation_charset,
3212 for (j = 0; zurl_in_use[j]; j++)
3216 int spare_waiting = 0;
3219 for (c = m_clientPool; c; c = c->m_next)
3221 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3223 if (c->m_cookie == 0)
3225 if (c->m_server == 0)
3237 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3238 "sparew=%d preinit=%d",m_session_str,
3239 name, zurl_in_use[j], in_use, other,
3240 spare, spare_waiting, pre_init);
3241 if (spare + spare_waiting < pre_init)
3243 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3244 c->m_next = m_clientPool;
3246 c->m_next->m_prev = &c->m_next;
3248 c->m_prev = &m_clientPool;
3250 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3251 c->set_APDU_yazlog(1);
3253 c->set_APDU_yazlog(0);
3255 if (c->client(zurl_in_use[j]))
3263 c->m_target_idletime = target_idletime;
3264 c->m_seqno = m_seqno++;
3271 void Yaz_Proxy::timeoutNotify()
3276 switch(m_timeout_mode)
3278 case timeout_normal:
3282 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3285 case timeout_reduce:
3286 timeout(m_client_idletime);
3287 m_timeout_mode = timeout_busy;
3288 gdu = m_timeout_gdu;
3290 recv_GDU_normal(gdu);
3293 assert(m_stylesheet_nprl);
3294 convert_xsl_delay();
3295 recv_GDU_more(true);
3305 void Yaz_Proxy::markInvalid()
3308 m_flag_invalid_session = 1;
3311 void Yaz_ProxyClient::timeoutNotify()
3314 m_server->inc_request_no();
3316 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3320 if (m_server && m_init_flag)
3322 // target timed out in a session that was properly initialized
3323 // server object stay alive but we mark it as invalid so it
3324 // gets initialized again
3325 m_server->markInvalid();
3331 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3332 Yaz_Proxy *parent) :
3333 Z_Assoc (the_PDU_Observable)
3340 m_last_resultSetId = 0;
3341 m_last_resultCount = 0;
3345 m_init_odr = odr_createmem (ODR_DECODE);
3347 m_initResponse_options = 0;
3348 m_initResponse_version = 0;
3349 m_initResponse_preferredMessageSize = 0;
3350 m_initResponse_maximumRecordSize = 0;
3351 m_resultSetStartPoint = 0;
3352 m_bytes_sent = m_bytes_recv = 0;
3356 m_target_idletime = 600;
3360 const char *Yaz_Proxy::option(const char *name, const char *value)
3362 if (!strcmp (name, "optimize")) {
3365 m_optimize = xstrdup (value);
3372 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3377 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3379 if (apdu->which == Z_GDU_Z3950)
3380 recv_Z_PDU(apdu->u.z3950, len);
3381 else if (apdu->which == Z_GDU_HTTP_Response)
3382 recv_HTTP_response(apdu->u.HTTP_Response, len);
3387 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3389 if (!m_flag_invalid_session)
3391 m_flag_invalid_session = 0;
3392 handle_incoming_Z_PDU(m_apdu_invalid_session);
3393 assert (m_mem_invalid_session);
3394 nmem_destroy(m_mem_invalid_session);
3395 m_mem_invalid_session = 0;
3399 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3401 m_bytes_recv += len;
3405 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3406 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3407 apdu_name(apdu), get_hostname(), len);
3408 if (apdu->which == Z_APDU_initResponse)
3410 if (!m_server) // if this is a pre init session , check for more
3412 NMEM nmem = odr_extract_mem (odr_decode());
3413 odr_reset (m_init_odr);
3414 nmem_transfer (m_init_odr->mem, nmem);
3415 m_initResponse = apdu;
3416 m_initResponse_options = apdu->u.initResponse->options;
3417 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3418 m_initResponse_preferredMessageSize =
3419 *apdu->u.initResponse->preferredMessageSize;
3420 m_initResponse_maximumRecordSize =
3421 *apdu->u.initResponse->maximumRecordSize;
3423 Z_InitResponse *ir = apdu->u.initResponse;
3424 char *im0 = ir->implementationName;
3427 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3434 strcat(im1, "(YAZ Proxy)");
3435 ir->implementationName = im1;
3437 nmem_destroy (nmem);
3439 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3442 if (apdu->which == Z_APDU_searchResponse)
3444 Z_SearchResponse *sr = apdu->u.searchResponse;
3445 m_last_resultCount = *sr->resultCount;
3446 int status = *sr->searchStatus;
3447 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3451 if (sr->records && sr->records->which == Z_Records_DBOSD)
3453 m_cache.add(odr_decode(),
3454 sr->records->u.databaseOrSurDiagnostics, 1,
3459 if (apdu->which == Z_APDU_presentResponse)
3461 Z_PresentResponse *pr = apdu->u.presentResponse;
3465 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3466 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3467 sr->referenceId = pr->referenceId;
3468 *sr->resultCount = m_last_resultCount;
3469 sr->records = pr->records;
3470 sr->nextResultSetPosition = pr->nextResultSetPosition;
3471 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3475 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3477 m_cache.add(odr_decode(),
3478 pr->records->u.databaseOrSurDiagnostics,
3479 m_resultSetStartPoint, -1);
3480 m_resultSetStartPoint = 0;
3484 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3486 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3489 server->send_to_client(apdu);
3490 if (apdu->which == Z_APDU_close)
3493 server->recv_GDU_more(true);
3496 void Yaz_Proxy::low_socket_close()
3501 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3502 if (m_lo_fd[i] >= 0)
3503 ::close(m_lo_fd[i]);
3507 void Yaz_Proxy::low_socket_open()
3512 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3513 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3517 int Yaz_Proxy::server(const char *addr)
3519 int r = Z_Assoc::server(addr);
3522 yaz_log(YLOG_LOG, "%sStarted proxy "
3526 " on %s", m_session_str, addr);
3535 * indent-tabs-mode: nil
3537 * vim: shiftwidth=4 tabstop=8 expandtab