1 /* $Id: yaz-proxy.cpp,v 1.64 2006-04-30 13:23:45 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())
111 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
115 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
117 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
119 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
120 m_proxy->result_authentication(apdu, m_ret);
127 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
129 if (apdu == 0 || ret == 0)
131 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
132 *apdu_reject->u.initResponse->result = 0;
133 send_to_client(apdu_reject);
138 if (apdu->which == Z_APDU_initRequest)
140 Yaz_ProxyConfig *cfg = check_reconfigure();
142 cfg->target_authentication(m_default_target, odr_encode(),
143 apdu->u.initRequest);
145 handle_incoming_Z_PDU_2(apdu);
149 static const char *apdu_name(Z_APDU *apdu)
153 case Z_APDU_initRequest:
154 return "initRequest";
155 case Z_APDU_initResponse:
156 return "initResponse";
157 case Z_APDU_searchRequest:
158 return "searchRequest";
159 case Z_APDU_searchResponse:
160 return "searchResponse";
161 case Z_APDU_presentRequest:
162 return "presentRequest";
163 case Z_APDU_presentResponse:
164 return "presentResponse";
165 case Z_APDU_deleteResultSetRequest:
166 return "deleteResultSetRequest";
167 case Z_APDU_deleteResultSetResponse:
168 return "deleteResultSetResponse";
169 case Z_APDU_scanRequest:
170 return "scanRequest";
171 case Z_APDU_scanResponse:
172 return "scanResponse";
173 case Z_APDU_sortRequest:
174 return "sortRequest";
175 case Z_APDU_sortResponse:
176 return "sortResponse";
177 case Z_APDU_extendedServicesRequest:
178 return "extendedServicesRequest";
179 case Z_APDU_extendedServicesResponse:
180 return "extendedServicesResponse";
187 static const char *gdu_name(Z_GDU *gdu)
192 return apdu_name(gdu->u.z3950);
193 case Z_GDU_HTTP_Request:
194 return "HTTP Request";
195 case Z_GDU_HTTP_Response:
196 return "HTTP Response";
198 return "Unknown request/response";
201 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
202 ISocketObservable *the_socket_observable,
205 Z_Assoc(the_PDU_Observable),
206 m_bw_stat(60), m_pdu_stat(60), m_search_stat(60)
208 m_PDU_Observable = the_PDU_Observable;
209 m_socket_observable = the_socket_observable;
214 m_keepalive_limit_bw = 500000;
215 m_keepalive_limit_pdu = 1000;
217 m_default_target = 0;
218 m_proxy_negotiation_charset = 0;
219 m_proxy_negotiation_lang = 0;
220 m_proxy_negotiation_default_charset = 0;
221 m_charset_converter = new Yaz_CharsetConverter;
225 m_client_idletime = 600;
226 m_target_idletime = 600;
227 m_optimize = xstrdup ("1");
228 strcpy(m_session_str, "0 ");
236 m_max_connect_period = 0;
238 m_limit_connect_period = 0;
239 m_timeout_mode = timeout_normal;
241 m_max_record_retrieve = 0;
245 m_flag_invalid_session = 0;
247 m_referenceId_mem = nmem_create();
249 m_marcxml_mode = none;
250 m_stylesheet_xsp = 0;
251 m_stylesheet_nprl = 0;
252 m_stylesheet_apdu = 0;
253 m_s2z_stylesheet = 0;
257 m_backend_charset = 0;
259 m_initRequest_apdu = 0;
260 m_initRequest_mem = 0;
261 m_initRequest_preferredMessageSize = 0;
262 m_initRequest_maximumRecordSize = 0;
263 m_initRequest_options = 0;
264 m_initRequest_version = 0;
265 m_initRequest_oi_negotiation_charsets = 0;
266 m_initRequest_oi_negotiation_num_charsets = 0;
267 m_initRequest_oi_negotiation_langs = 0;
268 m_initRequest_oi_negotiation_num_langs = 0;
269 m_initRequest_oi_negotiation_selected = 0;
270 m_apdu_invalid_session = 0;
271 m_mem_invalid_session = 0;
273 m_s2z_odr_search = 0;
275 m_s2z_search_apdu = 0;
276 m_s2z_present_apdu = 0;
277 m_http_keepalive = 0;
280 m_s2z_packing = Z_SRW_recordPacking_string;
281 #if HAVE_GETTIMEOFDAY
282 m_time_tv = xmalloc(sizeof(struct timeval));
283 struct timeval *tv = (struct timeval *) m_time_tv;
289 m_usemarcon_ini_stage1 = 0;
290 m_usemarcon_ini_stage2 = 0;
291 m_usemarcon = new Yaz_usemarcon();
296 m_main_ptr_dec = false;
300 void Yaz_Proxy::inc_ref()
305 Yaz_Proxy::~Yaz_Proxy()
307 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
308 m_bytes_sent, m_bytes_recv);
309 nmem_destroy(m_initRequest_mem);
310 nmem_destroy(m_mem_invalid_session);
311 nmem_destroy(m_referenceId_mem);
313 xfree(m_proxyTarget);
314 xfree(m_default_target);
315 xfree(m_proxy_negotiation_charset);
316 xfree(m_proxy_negotiation_lang);
317 xfree(m_proxy_negotiation_default_charset);
318 delete m_charset_converter;
322 if (m_stylesheet_xsp)
323 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
329 xfree (m_backend_type);
330 xfree (m_backend_charset);
331 xfree (m_usemarcon_ini_stage1);
332 xfree (m_usemarcon_ini_stage2);
335 odr_destroy(m_s2z_odr_init);
336 if (m_s2z_odr_search)
337 odr_destroy(m_s2z_odr_search);
345 void Yaz_Proxy::set_debug_mode(int mode)
350 int Yaz_Proxy::set_config(const char *config)
353 m_config = new Yaz_ProxyConfig();
354 xfree(m_config_fname);
355 m_config_fname = xstrdup(config);
356 int r = m_config->read_xml(config);
360 m_config->get_generic_info(&m_log_mask, &m_max_clients,
361 &m_max_connect, &m_limit_connect, &period);
362 m_connect.set_period(period);
367 void Yaz_Proxy::set_default_target(const char *target)
369 xfree (m_default_target);
370 m_default_target = 0;
372 m_default_target = (char *) xstrdup (target);
375 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
376 const char *default_charset)
378 yaz_log(YLOG_DEBUG, "%sSet the proxy negotiation: charset to '%s', "
379 "default charset to '%s', language to '%s'", m_session_str,
380 charset?charset:"none",
381 default_charset?default_charset:"none",
383 xfree (m_proxy_negotiation_charset);
384 xfree (m_proxy_negotiation_lang);
385 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
387 m_proxy_negotiation_charset = (char *) xstrdup (charset);
389 m_proxy_negotiation_lang = (char *) xstrdup (lang);
391 m_proxy_negotiation_default_charset =
392 (char *) xstrdup (default_charset);
395 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
398 return m_parent->check_reconfigure();
400 Yaz_ProxyConfig *cfg = m_config;
403 yaz_log(YLOG_LOG, "reconfigure");
405 if (m_config_fname && cfg)
407 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
408 int r = cfg->read_xml(m_config_fname);
410 yaz_log(YLOG_WARN, "reconfigure failed");
415 cfg->get_generic_info(&m_log_mask, &m_max_clients,
416 &m_max_connect, &m_limit_connect,
418 m_connect.set_period(period);
422 yaz_log(YLOG_LOG, "reconfigure");
428 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
429 *the_PDU_Observable, int fd)
433 char session_str[200];
434 const char *peername = the_PDU_Observable->getpeername();
435 if (m_log_mask & PROXY_LOG_IP_CLIENT)
436 sprintf(session_str, "%ld:%d %.80s %d ",
437 (long) time(0), m_session_no, peername, 0);
439 sprintf(session_str, "%ld:%d %d ",
440 (long) time(0), m_session_no, 0);
443 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
445 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
446 m_socket_observable, this);
448 new_proxy->m_config = 0;
449 new_proxy->m_config_fname = 0;
450 new_proxy->timeout(m_client_idletime);
451 new_proxy->m_target_idletime = m_target_idletime;
452 new_proxy->set_default_target(m_default_target);
453 new_proxy->m_max_clients = m_max_clients;
454 new_proxy->m_log_mask = m_log_mask;
456 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
457 new_proxy->m_log_mask = 255;
459 new_proxy->set_APDU_log(get_APDU_log());
460 if (new_proxy->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 // get those FILE descriptors available
606 m_parent->low_socket_close();
608 m_cql2rpn.set_pqf_file(cql2rpn_fname);
609 // reserve them again
610 m_parent->low_socket_open();
612 if (negotiation_charset || negotiation_lang || default_client_query_charset)
614 set_proxy_negotiation(negotiation_charset,
615 negotiation_lang, default_client_query_charset);
617 m_charset_converter->set_target_query_charset(query_charset);
620 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
623 // we don't handle multiplexing for cookie session, so we just
624 // pick the first one in this case (anonymous users will be able
625 // to use any backend)
626 if (cookie && *cookie)
627 m_proxyTarget = (char*) xstrdup(url[0]);
629 m_proxyTarget = (char*) xstrdup(load_balance(url));
631 if (cookie && *cookie)
632 { // search in sessions with a cookie
633 for (c = parent->m_clientPool; c; c = c->m_next)
636 assert (*c->m_prev == c);
637 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
638 !strcmp(m_proxyTarget, c->get_hostname()))
641 // The following handles "cancel"
642 // If connection is busy (waiting for PDU) and
643 // we have an initRequest we can safely do re-open
644 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
646 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
653 c->m_last_resultCount = 0;
654 c->m_sr_transform = 0;
656 c->m_resultSetStartPoint = 0;
657 c->m_target_idletime = m_target_idletime;
658 if (c->client(m_proxyTarget))
665 c->m_seqno = parent->m_seqno;
666 if (c->m_server && c->m_server != this)
667 c->m_server->m_client = 0;
670 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
675 else if (!c && apdu->which == Z_APDU_initRequest )
677 // anonymous sessions without cookie.
678 // if authentication is set it is NOT anonymous se we can't share them.
679 // If charset and lang negotiation is use it is NOT anonymous session too.
680 for (c = parent->m_clientPool; c; c = c->m_next)
683 assert(*c->m_prev == c);
684 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
685 && c->compare_idAuthentication(apdu)
686 && c->compare_charset(apdu)
687 && !strcmp(m_proxyTarget, c->get_hostname()))
690 yaz_log (YLOG_LOG, "%sREUSE %d %s",
691 m_session_str, parent->m_seqno, c->get_hostname());
693 c->m_seqno = parent->m_seqno;
694 assert(c->m_server == 0);
697 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
698 c->set_APDU_yazlog(1);
700 c->set_APDU_yazlog(0);
712 if (apdu->which != Z_APDU_initRequest)
714 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
717 // go through list of clients - and find the lowest/oldest one.
718 Yaz_ProxyClient *c_min = 0;
720 int no_of_clients = 0;
721 if (parent->m_clientPool)
722 yaz_log (YLOG_DEBUG, "Existing sessions");
723 for (c = parent->m_clientPool; c; c = c->m_next)
725 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
726 c->m_waiting, c->get_hostname(),
727 c->m_cookie ? c->m_cookie : "");
729 if (min_seq < 0 || c->m_seqno < min_seq)
731 min_seq = c->m_seqno;
735 if (no_of_clients >= parent->m_max_clients)
738 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
740 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
741 m_session_str, parent->m_max_clients, c->m_seqno);
742 if (c->m_server && c->m_server != this)
743 c->m_server->dec_ref();
747 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
748 m_session_str, parent->m_max_clients,
749 c->m_seqno, parent->m_seqno, c->get_hostname());
753 c->m_cookie = xstrdup(cookie);
754 c->m_seqno = parent->m_seqno;
755 if (c->m_server && c->m_server != this)
757 c->m_server->m_client = 0;
758 c->m_server->dec_ref();
761 c->m_target_idletime = m_target_idletime;
762 c->timeout(m_target_idletime);
764 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
765 c->set_APDU_yazlog(1);
767 c->set_APDU_yazlog(0);
774 yaz_log (YLOG_LOG, "%sNEW %d %s",
775 m_session_str, parent->m_seqno, m_proxyTarget);
776 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
777 c->m_next = parent->m_clientPool;
779 c->m_next->m_prev = &c->m_next;
780 parent->m_clientPool = c;
781 c->m_prev = &parent->m_clientPool;
787 c->m_cookie = xstrdup(cookie);
789 c->m_seqno = parent->m_seqno;
791 c->m_last_resultCount = 0;
794 c->m_sr_transform = 0;
796 c->m_resultSetStartPoint = 0;
798 if (c->client(m_proxyTarget))
803 c->m_target_idletime = m_target_idletime;
806 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
807 c->set_APDU_yazlog(1);
809 c->set_APDU_yazlog(0);
811 c->set_idAuthentication(apdu);
813 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
817 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
820 for (i = 0; i<num; i++)
823 Z_DefaultDiagFormat *r;
824 Z_DiagRec *p = pp[i];
825 if (p->which != Z_DiagRec_defaultFormat)
827 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
831 r = p->u.defaultFormat;
832 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
833 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
834 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
837 case Z_DefaultDiagFormat_v2Addinfo:
838 yaz_log(YLOG_LOG, "%sError %d %s:%s",
840 *r->condition, diagbib1_str(*r->condition),
843 case Z_DefaultDiagFormat_v3Addinfo:
844 yaz_log(YLOG_LOG, "%sError %d %s:%s",
846 *r->condition, diagbib1_str(*r->condition),
853 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
855 if (!m_stylesheet_xsp || p->num_records <= 0)
857 return 0; /* no XSLT to be done ... */
860 m_stylesheet_offset = 0;
861 m_stylesheet_nprl = p;
862 m_stylesheet_apdu = apdu;
863 m_timeout_mode = timeout_xsl;
869 void Yaz_Proxy::convert_xsl_delay()
872 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
873 if (npr->which == Z_NamePlusRecord_databaseRecord)
875 Z_External *r = npr->u.databaseRecord;
876 if (r->which == Z_External_octet)
879 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
881 xmlDocPtr res, doc = xmlParseMemory(
882 (char*) r->u.octet_aligned->buf,
883 r->u.octet_aligned->len);
886 yaz_log(YLOG_LOG, "%sXSLT convert %d",
887 m_session_str, m_stylesheet_offset);
888 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
895 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
897 m_stylesheet_nprl->records[m_stylesheet_offset]->
899 z_ext_record(odr_encode(), VAL_TEXT_XML,
900 (char*) out_buf, out_len);
909 m_stylesheet_offset++;
910 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
912 m_timeout_mode = timeout_normal;
913 m_stylesheet_nprl = 0;
915 if (m_stylesheet_xsp)
916 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
918 m_stylesheet_xsp = 0;
919 timeout(m_client_idletime);
920 send_PDU_convert(m_stylesheet_apdu);
926 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
928 if (m_frontend_type != VAL_NONE)
931 for (i = 0; i < p->num_records; i++)
933 Z_NamePlusRecord *npr = p->records[i];
934 if (npr->which == Z_NamePlusRecord_databaseRecord)
936 Z_External *r = npr->u.databaseRecord;
937 if (r->which == Z_External_octet)
940 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
942 if (!m_usemarcon->m_stage1)
944 m_usemarcon->m_stage1 = new CDetails();
946 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
947 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
948 int res = m_usemarcon->m_stage1->Start();
953 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
954 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
956 if (!m_usemarcon->m_stage2)
958 m_usemarcon->m_stage2 = new CDetails();
960 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
961 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
962 res = m_usemarcon->m_stage2->Start();
966 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
970 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
973 npr->u.databaseRecord =
974 z_ext_record(odr_encode(),
982 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
988 npr->u.databaseRecord =
989 z_ext_record(odr_encode(),
991 (char*) r->u.octet_aligned->buf,
992 r->u.octet_aligned->len);
999 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1000 const char *backend_charset)
1002 int sel = m_charset_converter->get_client_charset_selected();
1003 const char *client_record_charset =
1004 m_charset_converter->get_client_query_charset();
1005 if (sel && backend_charset && client_record_charset &&
1006 strcmp(backend_charset, client_record_charset))
1009 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1011 yaz_marc_t mt = yaz_marc_create();
1012 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1013 yaz_marc_iconv(mt, cd);
1014 for (i = 0; i < p->num_records; i++)
1016 Z_NamePlusRecord *npr = p->records[i];
1017 if (npr->which == Z_NamePlusRecord_databaseRecord)
1019 Z_External *r = npr->u.databaseRecord;
1020 oident *ent = oid_getentbyoid(r->direct_reference);
1021 if (!ent || ent->value == VAL_NONE)
1024 if (ent->value == VAL_SUTRS)
1026 WRBUF w = wrbuf_alloc();
1028 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1029 r->u.octet_aligned->len);
1030 npr->u.databaseRecord =
1031 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1035 else if (ent->value == VAL_TEXT_XML)
1039 else if (r->which == Z_External_octet)
1043 if (yaz_marc_decode_buf(mt,
1044 (char*) r->u.octet_aligned->buf,
1045 r->u.octet_aligned->len,
1048 npr->u.databaseRecord =
1049 z_ext_record(odr_encode(), ent->value, result, rlen);
1050 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1057 yaz_iconv_close(cd);
1058 yaz_marc_destroy(mt);
1062 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1063 const char *backend_charset)
1066 if (!backend_charset)
1067 backend_charset = "MARC-8";
1068 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1069 yaz_marc_t mt = yaz_marc_create();
1070 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1071 yaz_marc_iconv(mt, cd);
1072 for (i = 0; i < p->num_records; i++)
1074 Z_NamePlusRecord *npr = p->records[i];
1075 if (npr->which == Z_NamePlusRecord_databaseRecord)
1077 Z_External *r = npr->u.databaseRecord;
1078 if (r->which == Z_External_OPAC)
1080 WRBUF w = wrbuf_alloc();
1082 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1083 npr->u.databaseRecord = z_ext_record(
1084 odr_encode(), VAL_TEXT_XML,
1085 wrbuf_buf(w), wrbuf_len(w)
1089 else if (r->which == Z_External_octet)
1093 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1094 r->u.octet_aligned->len,
1097 npr->u.databaseRecord =
1098 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1104 yaz_iconv_close(cd);
1105 yaz_marc_destroy(mt);
1108 void Yaz_Proxy::logtime()
1110 #if HAVE_GETTIMEOFDAY
1111 struct timeval *tv = (struct timeval*) m_time_tv;
1115 gettimeofday(&tv1, 0);
1116 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1117 (tv1.tv_usec - tv->tv_usec);
1119 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1120 diff/1000000, (diff/1000)%1000);
1127 int Yaz_Proxy::send_http_response(int code)
1129 ODR o = odr_encode();
1130 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1131 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1133 hres->version = odr_strdup(o, m_http_version);
1134 if (m_http_keepalive)
1135 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1139 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1141 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1145 int r = send_GDU(gdu, &len);
1146 m_bytes_sent += len;
1147 m_bw_stat.add_bytes(len);
1150 recv_GDU_more(true);
1155 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1157 ODR o = odr_encode();
1158 const char *ctype = "text/xml";
1159 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1160 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1162 hres->version = odr_strdup(o, m_http_version);
1163 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1164 if (m_http_keepalive)
1165 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1168 if (http_code == 401)
1169 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1171 static Z_SOAP_Handler soap_handlers[2] = {
1173 {"http://www.loc.gov/zing/srw/", 0,
1174 (Z_SOAP_fun) yaz_srw_codec},
1179 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1180 soap_package->which = Z_SOAP_generic;
1181 soap_package->u.generic =
1182 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1183 soap_package->u.generic->no = 0;
1184 soap_package->u.generic->ns = soap_handlers[0].ns;
1185 soap_package->u.generic->p = (void *) srw_pdu;
1186 soap_package->ns = m_soap_ns;
1187 z_soap_codec_enc_xsl(o, &soap_package,
1188 &hres->content_buf, &hres->content_len,
1189 soap_handlers, 0, m_s2z_stylesheet);
1190 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1192 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1196 int r = send_GDU(gdu, &len);
1197 m_bytes_sent += len;
1198 m_bw_stat.add_bytes(len);
1201 recv_GDU_more(true);
1206 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1208 ODR o = odr_encode();
1209 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1210 odr_malloc(o, sizeof(*diagnostic));
1211 int num_diagnostic = 1;
1212 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1213 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1216 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1217 Z_DefaultDiagFormat *ddf)
1219 int bib1_code = *ddf->condition;
1220 if (bib1_code == 109)
1222 srw_res->num_diagnostics = 1;
1223 srw_res->diagnostics = (Z_SRW_diagnostic *)
1224 odr_malloc(o, sizeof(*srw_res->diagnostics));
1225 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1226 yaz_diag_bib1_to_srw(*ddf->condition),
1231 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1233 ODR o = odr_encode();
1234 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1235 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1237 srw_res->numberOfRecords = odr_intdup (o, hits);
1238 if (records && records->which == Z_Records_DBOSD)
1240 srw_res->num_records =
1241 records->u.databaseOrSurDiagnostics->num_records;
1243 srw_res->records = (Z_SRW_record *)
1244 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1245 for (i = 0; i < srw_res->num_records; i++)
1247 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1248 if (npr->which != Z_NamePlusRecord_databaseRecord)
1250 srw_res->records[i].recordSchema = "diagnostic";
1251 srw_res->records[i].recordPacking = m_s2z_packing;
1252 srw_res->records[i].recordData_buf = "67";
1253 srw_res->records[i].recordData_len = 2;
1254 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1257 Z_External *r = npr->u.databaseRecord;
1258 oident *ent = oid_getentbyoid(r->direct_reference);
1259 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1261 srw_res->records[i].recordSchema = m_schema;
1262 srw_res->records[i].recordPacking = m_s2z_packing;
1263 srw_res->records[i].recordData_buf = (char*)
1264 r->u.octet_aligned->buf;
1265 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1266 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1270 srw_res->records[i].recordSchema = "diagnostic";
1271 srw_res->records[i].recordPacking = m_s2z_packing;
1272 srw_res->records[i].recordData_buf = "67";
1273 srw_res->records[i].recordData_len = 2;
1274 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1278 if (records && records->which == Z_Records_NSD)
1281 http_code = z_to_srw_diag(odr_encode(), srw_res,
1282 records->u.nonSurrogateDiagnostic);
1284 return send_http_response(http_code);
1286 return send_srw_response(srw_pdu);
1290 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1291 int num_diagnostics, int http_code /* = 200 */)
1293 ODR o = odr_encode();
1294 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1295 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1297 srw_res->num_diagnostics = num_diagnostics;
1298 srw_res->diagnostics = diagnostics;
1299 return send_srw_response(srw_pdu, http_code);
1302 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1303 int num_diagnostics)
1305 Yaz_ProxyConfig *cfg = check_reconfigure();
1309 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1310 m_s2z_database, &len);
1313 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1314 Z_SRW_explainResponse *er = res->u.explain_response;
1316 er->record.recordData_buf = b;
1317 er->record.recordData_len = len;
1318 er->record.recordPacking = m_s2z_packing;
1319 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1321 er->diagnostics = diagnostics;
1322 er->num_diagnostics = num_diagnostics;
1323 return send_srw_response(res);
1326 return send_http_response(404);
1329 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1333 if (apdu->which == Z_APDU_initResponse)
1335 Z_InitResponse *res = apdu->u.initResponse;
1336 if (*res->result == 0)
1338 send_to_srw_client_error(3, 0);
1340 else if (!m_s2z_search_apdu)
1342 send_srw_explain_response(0, 0);
1346 handle_incoming_Z_PDU(m_s2z_search_apdu);
1349 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1351 m_s2z_search_apdu = 0;
1352 Z_SearchResponse *res = apdu->u.searchResponse;
1353 m_s2z_hit_count = *res->resultCount;
1354 if (res->records && res->records->which == Z_Records_NSD)
1356 send_to_srw_client_ok(0, res->records, 1);
1358 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1361 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1363 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1365 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1367 *pr->numberOfRecordsRequested =
1368 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1370 handle_incoming_Z_PDU(m_s2z_present_apdu);
1374 m_s2z_present_apdu = 0;
1375 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1378 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1381 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1383 m_s2z_present_apdu = 0;
1384 Z_PresentResponse *res = apdu->u.presentResponse;
1385 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1391 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1392 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1394 int r = send_Z_PDU(apdu, &len);
1395 m_bytes_sent += len;
1396 m_bw_stat.add_bytes(len);
1403 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1405 int kill_session = 0;
1406 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1409 *new_id = m_referenceId;
1411 if (apdu->which == Z_APDU_searchResponse)
1413 Z_SearchResponse *sr = apdu->u.searchResponse;
1414 Z_Records *p = sr->records;
1415 if (p && p->which == Z_Records_NSD)
1417 Z_DiagRec dr, *dr_p = &dr;
1418 dr.which = Z_DiagRec_defaultFormat;
1419 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1421 *sr->searchStatus = 0;
1422 display_diagrecs(&dr_p, 1);
1426 if (p && p->which == Z_Records_DBOSD)
1430 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1433 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1434 if (m_marcxml_mode == marcxml)
1435 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1438 convert_records_charset(p->u.databaseOrSurDiagnostics,
1440 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1444 if (sr->resultCount)
1446 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1448 if (*sr->resultCount < 0)
1450 m_flag_invalid_session = 1;
1453 *sr->searchStatus = 0;
1455 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1456 *sr->resultCount = 0;
1461 else if (apdu->which == Z_APDU_presentResponse)
1463 Z_PresentResponse *sr = apdu->u.presentResponse;
1464 Z_Records *p = sr->records;
1465 if (p && p->which == Z_Records_NSD)
1467 Z_DiagRec dr, *dr_p = &dr;
1468 dr.which = Z_DiagRec_defaultFormat;
1469 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1470 if (*sr->presentStatus == Z_PresentStatus_success)
1471 *sr->presentStatus = Z_PresentStatus_failure;
1472 display_diagrecs(&dr_p, 1);
1474 if (p && p->which == Z_Records_DBOSD)
1478 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1481 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1482 if (m_marcxml_mode == marcxml)
1483 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1486 convert_records_charset(p->u.databaseOrSurDiagnostics,
1488 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1492 else if (apdu->which == Z_APDU_initResponse)
1494 //Get and check negotiation record
1495 //from init response.
1496 handle_charset_lang_negotiation(apdu);
1498 if (m_initRequest_options)
1501 (Odr_bitmask *)odr_malloc(odr_encode(),
1502 sizeof(Odr_bitmask));
1503 ODR_MASK_ZERO(nopt);
1506 for (i = 0; i<24; i++)
1507 if (ODR_MASK_GET(m_initRequest_options, i) &&
1508 ODR_MASK_GET(apdu->u.initResponse->options, i))
1509 ODR_MASK_SET(nopt, i);
1510 apdu->u.initResponse->options = nopt;
1512 if (m_initRequest_version)
1514 Z_ProtocolVersion *nopt =
1515 (Odr_bitmask *)odr_malloc(odr_encode(),
1516 sizeof(Odr_bitmask));
1517 ODR_MASK_ZERO(nopt);
1520 for (i = 0; i<8; i++)
1521 if (ODR_MASK_GET(m_initRequest_version, i) &&
1522 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1523 ODR_MASK_SET(nopt, i);
1524 apdu->u.initResponse->protocolVersion = nopt;
1526 apdu->u.initResponse->preferredMessageSize =
1527 odr_intdup(odr_encode(),
1528 m_client->m_initResponse_preferredMessageSize >
1529 m_initRequest_preferredMessageSize ?
1530 m_initRequest_preferredMessageSize :
1531 m_client->m_initResponse_preferredMessageSize);
1532 apdu->u.initResponse->maximumRecordSize =
1533 odr_intdup(odr_encode(),
1534 m_client->m_initResponse_maximumRecordSize >
1535 m_initRequest_maximumRecordSize ?
1536 m_initRequest_maximumRecordSize :
1537 m_client->m_initResponse_maximumRecordSize);
1540 int r = send_PDU_convert(apdu);
1547 m_parent->pre_init();
1552 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1554 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1556 odr_reset(m_idAuthentication_odr);
1557 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1558 m_idAuthentication_ber_buf =
1559 odr_getbuf(m_idAuthentication_odr,
1560 &m_idAuthentication_ber_size, 0);
1563 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1568 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1570 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1571 ODR odr = odr_createmem(ODR_ENCODE);
1573 z_IdAuthentication(odr, &t, 1, 0);
1575 char *buf = odr_getbuf(odr, &sz, 0);
1576 if (buf && m_idAuthentication_ber_buf
1577 && sz == m_idAuthentication_ber_size
1578 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1584 if (!buf && !m_idAuthentication_ber_buf)
1589 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1592 const char *apdu_name_tmp = apdu_name(apdu);
1593 int r = send_Z_PDU(apdu, &len);
1594 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1595 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1597 apdu_name_tmp, get_hostname(), len);
1598 m_bytes_sent += len;
1602 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1604 if (apdu->which == Z_APDU_presentRequest)
1606 Z_PresentRequest *pr = apdu->u.presentRequest;
1607 int toget = *pr->numberOfRecordsRequested;
1608 int start = *pr->resultSetStartPoint;
1610 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1611 pr->resultSetId, start, toget);
1613 if (*m_parent->m_optimize == '0')
1616 if (!m_client->m_last_resultSetId)
1618 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1619 new_apdu->u.presentResponse->records =
1620 create_nonSurrogateDiagnostics(
1622 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1624 send_to_client(new_apdu);
1627 if (start < 1 || toget < 0)
1629 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1630 new_apdu->u.presentResponse->records =
1631 create_nonSurrogateDiagnostics(
1633 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1635 send_to_client(new_apdu);
1638 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1640 if (start+toget-1 > m_client->m_last_resultCount)
1642 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1643 new_apdu->u.presentResponse->records =
1644 create_nonSurrogateDiagnostics(
1646 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1648 send_to_client(new_apdu);
1651 Z_NamePlusRecordList *npr;
1653 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1654 m_session_str, start, toget, yaz_z3950oid_to_str(
1655 pr->preferredRecordSyntax, &oclass));
1657 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1658 pr->preferredRecordSyntax,
1659 pr->recordComposition))
1661 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1663 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1664 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1666 new_apdu->u.presentResponse->numberOfRecordsReturned
1667 = odr_intdup(odr_encode(), toget);
1669 new_apdu->u.presentResponse->records = (Z_Records*)
1670 odr_malloc(odr_encode(), sizeof(Z_Records));
1671 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1672 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1673 new_apdu->u.presentResponse->nextResultSetPosition =
1674 odr_intdup(odr_encode(), start+toget);
1676 send_to_client(new_apdu);
1682 if (apdu->which != Z_APDU_searchRequest)
1684 Z_SearchRequest *sr = apdu->u.searchRequest;
1685 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1686 Yaz_Z_Databases this_databases;
1688 this_databases.set(sr->num_databaseNames, (const char **)
1691 this_query->set_Z_Query(sr->query);
1693 // Check for non-negative piggyback params.
1694 if (*sr->smallSetUpperBound < 0
1695 || *sr->largeSetLowerBound < 0
1696 || *sr->mediumSetPresentNumber < 0)
1698 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1699 // Not a present request.. But can't find better diagnostic
1700 new_apdu->u.searchResponse->records =
1701 create_nonSurrogateDiagnostics(
1703 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1704 send_to_client(new_apdu);
1708 char query_str[120];
1709 this_query->print(query_str, sizeof(query_str)-1);
1710 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1712 if (*m_parent->m_optimize != '0' &&
1713 m_client->m_last_ok && m_client->m_last_query &&
1714 m_client->m_last_query->match(this_query) &&
1715 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1716 m_client->m_last_databases.match(this_databases))
1719 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1720 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1722 Z_NamePlusRecordList *npr;
1723 int toget = *sr->mediumSetPresentNumber;
1724 Z_RecordComposition *comp = 0;
1726 if (toget > m_client->m_last_resultCount)
1727 toget = m_client->m_last_resultCount;
1729 if (sr->mediumSetElementSetNames)
1731 comp = (Z_RecordComposition *)
1732 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1733 comp->which = Z_RecordComp_simple;
1734 comp->u.simple = sr->mediumSetElementSetNames;
1737 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1738 sr->preferredRecordSyntax, comp))
1740 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1742 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1743 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1744 new_apdu->u.searchResponse->resultCount =
1745 &m_client->m_last_resultCount;
1747 new_apdu->u.searchResponse->numberOfRecordsReturned
1748 = odr_intdup(odr_encode(), toget);
1750 new_apdu->u.searchResponse->presentStatus =
1751 odr_intdup(odr_encode(), Z_PresentStatus_success);
1752 new_apdu->u.searchResponse->records = (Z_Records*)
1753 odr_malloc(odr_encode(), sizeof(Z_Records));
1754 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1755 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1756 new_apdu->u.searchResponse->nextResultSetPosition =
1757 odr_intdup(odr_encode(), toget+1);
1758 send_to_client(new_apdu);
1764 // send present request (medium size)
1765 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1768 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1769 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1770 pr->referenceId = sr->referenceId;
1771 pr->resultSetId = sr->resultSetName;
1772 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1773 *pr->numberOfRecordsRequested = toget;
1774 pr->recordComposition = comp;
1775 m_client->m_sr_transform = 1;
1779 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1780 m_client->m_last_resultCount <= 0)
1782 // large set. Return pseudo-search response immediately
1783 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1785 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1786 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1787 new_apdu->u.searchResponse->resultCount =
1788 &m_client->m_last_resultCount;
1789 send_to_client(new_apdu);
1794 Z_NamePlusRecordList *npr;
1795 int toget = m_client->m_last_resultCount;
1796 Z_RecordComposition *comp = 0;
1798 // send a present request (small set)
1800 if (sr->smallSetElementSetNames)
1802 comp = (Z_RecordComposition *)
1803 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1804 comp->which = Z_RecordComp_simple;
1805 comp->u.simple = sr->smallSetElementSetNames;
1808 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1809 sr->preferredRecordSyntax, comp))
1811 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1813 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1814 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1815 new_apdu->u.searchResponse->resultCount =
1816 &m_client->m_last_resultCount;
1818 new_apdu->u.searchResponse->numberOfRecordsReturned
1819 = odr_intdup(odr_encode(), toget);
1821 new_apdu->u.searchResponse->presentStatus =
1822 odr_intdup(odr_encode(), Z_PresentStatus_success);
1823 new_apdu->u.searchResponse->records = (Z_Records*)
1824 odr_malloc(odr_encode(), sizeof(Z_Records));
1825 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1826 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1827 new_apdu->u.searchResponse->nextResultSetPosition =
1828 odr_intdup(odr_encode(), toget+1);
1829 send_to_client(new_apdu);
1834 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1836 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1837 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1838 pr->referenceId = sr->referenceId;
1839 pr->resultSetId = sr->resultSetName;
1840 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1841 *pr->numberOfRecordsRequested = toget;
1842 pr->recordComposition = comp;
1843 m_client->m_sr_transform = 1;
1848 else // query doesn't match
1850 delete m_client->m_last_query;
1851 m_client->m_last_query = this_query;
1852 m_client->m_last_ok = 0;
1853 m_client->m_cache.clear();
1854 m_client->m_resultSetStartPoint = 0;
1856 xfree (m_client->m_last_resultSetId);
1857 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1859 m_client->m_last_databases.set(sr->num_databaseNames,
1860 (const char **) sr->databaseNames);
1866 void Yaz_Proxy::inc_request_no()
1869 char *cp = m_session_str + strlen(m_session_str)-1;
1872 while (*cp && *cp != ' ')
1875 sprintf(cp+1, "%d ", m_request_no);
1878 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1882 m_bytes_recv += len;
1884 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1885 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1886 m_session_str, gdu_name(apdu), len);
1889 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1890 if (apdu->which == Z_GDU_Z3950
1891 && apdu->u.z3950->which == Z_APDU_searchRequest)
1893 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1894 if (req->query && req->query->which == Z_Query_type_1)
1896 Z_RPNQuery *rpnquery = req->query->u.type_1;
1897 if (rpnquery->attributeSetId)
1899 rpnquery->attributeSetId[0] = -2;
1900 rpnquery->attributeSetId[1] = -1;
1901 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1907 #if HAVE_GETTIMEOFDAY
1908 gettimeofday((struct timeval *) m_time_tv, 0);
1910 m_bw_stat.add_bytes(len);
1911 m_pdu_stat.add_bytes(1);
1913 GDU *gdu = new GDU(apdu);
1915 if (gdu->get() == 0)
1918 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1923 m_in_queue.enqueue(gdu);
1924 recv_GDU_more(false);
1927 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1929 if (z_gdu->which == Z_GDU_HTTP_Request)
1931 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1932 const char *x_forwarded_for =
1933 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1934 if (x_forwarded_for)
1937 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1938 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1940 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1942 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1943 sprintf(m_session_str, "%ld:%d %.80s %d ",
1944 (long) time(0), m_session_no, m_peername, m_request_no);
1946 sprintf(m_session_str, "%ld:%d %d ",
1947 (long) time(0), m_session_no, m_request_no);
1952 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1955 m_parent->m_connect.cleanup(false);
1956 m_parent->m_connect.add_connect(m_peername);
1958 int connect_total = m_parent->m_connect.get_total(m_peername);
1959 int max_connect = m_parent->m_max_connect;
1961 if (max_connect && connect_total > max_connect)
1963 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1964 m_session_str, connect_total, max_connect);
1969 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1972 int limit_connect = m_parent->m_limit_connect;
1974 reduce = connect_total / limit_connect;
1979 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1981 HTTP_Forwarded(gdu->get());
1985 if (m_request_no == 1)
1989 connect_stat(block, reduce);
1993 m_timeout_mode = timeout_busy;
1999 int bw_total = m_bw_stat.get_total();
2000 int pdu_total = m_pdu_stat.get_total();
2001 int search_total = m_search_stat.get_total();
2003 assert(m_timeout_mode == timeout_busy);
2004 assert(m_timeout_gdu == 0);
2007 reduce += search_total / m_search_max;
2009 reduce += (bw_total/m_bw_max);
2012 if (pdu_total > m_pdu_max)
2014 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2015 reduce = (reduce > nreduce) ? reduce : nreduce;
2021 /* uncomment to force a big reduce */
2022 m_timeout_mode = timeout_reduce;
2023 m_timeout_gdu = gdu;
2024 timeout(3); // call us reduce seconds later
2029 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2030 m_session_str, reduce, bw_total, pdu_total, search_total,
2031 m_bw_max, m_pdu_max, m_search_max);
2033 m_timeout_mode = timeout_reduce;
2034 m_timeout_gdu = gdu;
2035 timeout(reduce); // call us reduce seconds later
2038 recv_GDU_normal(gdu);
2041 void Yaz_Proxy::recv_GDU_more(bool normal)
2044 if (normal && m_timeout_mode == timeout_busy)
2045 m_timeout_mode = timeout_normal;
2046 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2048 m_timeout_mode = timeout_busy;
2056 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2059 gdu->move_away_gdu(odr_decode(), &apdu);
2062 if (apdu->which == Z_GDU_Z3950)
2063 handle_incoming_Z_PDU(apdu->u.z3950);
2064 else if (apdu->which == Z_GDU_HTTP_Request)
2065 handle_incoming_HTTP(apdu->u.HTTP_Request);
2068 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2070 if (m_max_record_retrieve)
2072 if (apdu->which == Z_APDU_presentRequest)
2074 Z_PresentRequest *pr = apdu->u.presentRequest;
2075 if (pr->numberOfRecordsRequested &&
2076 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2077 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2082 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2084 if (apdu->which == Z_APDU_initRequest)
2086 if (m_initRequest_options &&
2087 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2088 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2090 // There is no negotiation proposal from
2091 // client's side. OK. The proxy negotiation
2093 Z_InitRequest *initRequest = apdu->u.initRequest;
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(initRequest->options,
2101 Z_Options_negotiationModel);
2102 oi->which = Z_OtherInfo_externallyDefinedInfo;
2103 oi->information.externallyDefinedInfo =
2104 yaz_set_proposal_charneg(odr_encode(),
2105 (const char**)&m_proxy_negotiation_charset,
2106 m_proxy_negotiation_charset ? 1:0,
2107 (const char**)&m_proxy_negotiation_lang,
2108 m_proxy_negotiation_lang ? 1:0,
2112 else if (m_initRequest_options &&
2113 ODR_MASK_GET(m_initRequest_options,
2114 Z_Options_negotiationModel) &&
2115 m_charset_converter->get_target_query_charset())
2117 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2119 m_charset_converter->get_target_query_charset());
2120 Z_InitRequest *initRequest = apdu->u.initRequest;
2121 Z_CharSetandLanguageNegotiation *negotiation =
2122 yaz_get_charneg_record (initRequest->otherInfo);
2124 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2126 NMEM nmem = nmem_create();
2127 char **charsets = 0;
2128 int num_charsets = 0;
2132 yaz_get_proposal_charneg (nmem, negotiation,
2133 &charsets, &num_charsets,
2134 &langs, &num_langs, &selected);
2136 for (i = 0; i<num_charsets; i++)
2137 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2139 for (i = 0; i<num_langs; i++)
2140 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2143 const char *t_charset =
2144 m_charset_converter->get_target_query_charset();
2145 // sweep through charsets and pick the first supported
2147 for (i = 0; i<num_charsets; i++)
2149 const char *c_charset = charsets[i];
2150 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2153 if (i != num_charsets)
2155 // got one .. set up ODR for reverse direction
2156 const char *c_charset = charsets[i];
2157 odr_set_charset(odr_encode(), c_charset, t_charset);
2158 m_charset_converter->set_client_query_charset(c_charset);
2159 m_charset_converter->set_client_charset_selected(selected);
2162 ODR_MASK_CLEAR(m_initRequest_options,
2163 Z_Options_negotiationModel);
2164 yaz_del_charneg_record(&initRequest->otherInfo);
2168 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2172 else if (m_charset_converter->get_target_query_charset() &&
2173 m_proxy_negotiation_default_charset)
2175 m_charset_converter->
2176 set_client_query_charset(m_proxy_negotiation_default_charset);
2179 else if (apdu->which == Z_APDU_initResponse)
2181 Z_InitResponse *initResponse = apdu->u.initResponse;
2182 Z_OtherInformation **otherInfo;
2183 get_otherInfoAPDU(apdu, &otherInfo);
2185 Z_CharSetandLanguageNegotiation *charneg = 0;
2187 if (otherInfo && *otherInfo &&
2188 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2189 && (charneg = yaz_get_charneg_record(*otherInfo)))
2195 yaz_get_response_charneg(m_referenceId_mem, charneg,
2196 &charset, &lang, &selected);
2198 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2199 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2201 if (m_initRequest_options &&
2202 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2204 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2207 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2209 // negotiation-charset, negotiation-lang
2210 // elements of config file in use.
2212 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2215 // clear negotiation option.
2216 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2218 // Delete negotiation (charneg-3) entry.
2219 yaz_del_charneg_record(otherInfo);
2224 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2226 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2229 else if (m_charset_converter->get_client_query_charset())
2231 Z_OtherInformation **otherInfo;
2232 Z_OtherInformationUnit *oi;
2233 get_otherInfoAPDU(apdu, &otherInfo);
2234 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2237 ODR_MASK_SET(initResponse->options,
2238 Z_Options_negotiationModel);
2239 if (m_initRequest_options)
2240 ODR_MASK_SET(m_initRequest_options,
2241 Z_Options_negotiationModel);
2243 oi->which = Z_OtherInfo_externallyDefinedInfo;
2244 oi->information.externallyDefinedInfo =
2245 yaz_set_response_charneg(
2247 m_charset_converter->get_client_query_charset(),
2249 m_charset_converter->get_client_charset_selected());
2256 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2258 const char *addinfo)
2260 Z_Records *rec = (Z_Records *)
2261 odr_malloc (odr, sizeof(*rec));
2263 odr_malloc (odr, sizeof(*err));
2264 Z_DiagRec *drec = (Z_DiagRec *)
2265 odr_malloc (odr, sizeof(*drec));
2266 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2267 odr_malloc (odr, sizeof(*dr));
2269 rec->which = Z_Records_NSD;
2270 rec->u.nonSurrogateDiagnostic = dr;
2271 dr->diagnosticSetId =
2272 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2273 dr->condition = err;
2274 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2275 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2279 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2281 if (apdu->which == Z_APDU_searchRequest &&
2282 apdu->u.searchRequest->query &&
2283 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2284 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2286 Z_RPNQuery *rpnquery = 0;
2287 Z_SearchRequest *sr = apdu->u.searchRequest;
2290 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2291 sr->query->u.type_104->u.cql);
2293 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2294 &rpnquery, odr_encode(),
2297 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2300 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2301 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2303 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2304 new_apdu->u.searchResponse->records =
2305 create_nonSurrogateDiagnostics(odr_encode(),
2306 yaz_diag_srw_to_bib1(r),
2308 *new_apdu->u.searchResponse->searchStatus = 0;
2310 send_to_client(new_apdu);
2316 sr->query->which = Z_Query_type_1;
2317 sr->query->u.type_1 = rpnquery;
2324 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2326 if (apdu->which == Z_APDU_searchRequest &&
2327 apdu->u.searchRequest->query)
2329 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2330 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2333 m_charset_converter->set_client_query_charset("UTF-8");
2334 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2335 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2342 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2344 if (apdu->which == Z_APDU_searchRequest)
2346 Z_SearchRequest *sr = apdu->u.searchRequest;
2350 Yaz_ProxyConfig *cfg = check_reconfigure();
2352 err = cfg->check_query(odr_encode(), m_default_target,
2353 sr->query, &addinfo);
2356 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2358 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2359 new_apdu->u.searchResponse->records =
2360 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2361 *new_apdu->u.searchResponse->searchStatus = 0;
2363 send_to_client(new_apdu);
2371 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2373 if (apdu->which != Z_APDU_initRequest)
2374 return 1; // pass if no init request
2375 Z_InitRequest *req = apdu->u.initRequest;
2377 Yaz_ProxyConfig *cfg = check_reconfigure();
2379 return 1; // pass if no config
2382 if (req->idAuthentication == 0)
2384 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2387 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2389 ret = cfg->client_authentication(
2391 req->idAuthentication->u.idPass->userId,
2392 req->idAuthentication->u.idPass->groupId,
2393 req->idAuthentication->u.idPass->password,
2396 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2398 char user[64], pass[64];
2401 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2402 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2406 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2411 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2413 m_marcxml_mode = none;
2414 if (apdu->which == Z_APDU_searchRequest)
2416 Z_SearchRequest *sr = apdu->u.searchRequest;
2419 Yaz_ProxyConfig *cfg = check_reconfigure();
2421 Z_RecordComposition rc_temp, *rc = 0;
2422 if (sr->smallSetElementSetNames)
2424 rc_temp.which = Z_RecordComp_simple;
2425 rc_temp.u.simple = sr->smallSetElementSetNames;
2429 if (sr->preferredRecordSyntax)
2432 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2433 m_frontend_type = ent->value;
2436 m_frontend_type = VAL_NONE;
2438 char *stylesheet_name = 0;
2440 err = cfg->check_syntax(odr_encode(),
2442 sr->preferredRecordSyntax, rc,
2443 &addinfo, &stylesheet_name, &m_schema,
2444 &m_backend_type, &m_backend_charset,
2445 &m_usemarcon_ini_stage1,
2446 &m_usemarcon_ini_stage2);
2447 if (stylesheet_name)
2449 m_parent->low_socket_close();
2452 if (m_stylesheet_xsp)
2453 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2454 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2457 m_stylesheet_offset = 0;
2458 xfree(stylesheet_name);
2460 m_parent->low_socket_open();
2464 sr->smallSetElementSetNames = 0;
2465 sr->mediumSetElementSetNames = 0;
2466 m_marcxml_mode = marcxml;
2470 sr->preferredRecordSyntax =
2471 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2475 sr->preferredRecordSyntax =
2476 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2481 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2483 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2484 new_apdu->u.searchResponse->records =
2485 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2486 *new_apdu->u.searchResponse->searchStatus = 0;
2488 send_to_client(new_apdu);
2492 else if (m_backend_type)
2494 sr->preferredRecordSyntax =
2495 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2498 else if (apdu->which == Z_APDU_presentRequest)
2500 Z_PresentRequest *pr = apdu->u.presentRequest;
2503 Yaz_ProxyConfig *cfg = check_reconfigure();
2505 if (pr->preferredRecordSyntax)
2508 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2509 m_frontend_type = ent->value;
2512 m_frontend_type = VAL_NONE;
2514 char *stylesheet_name = 0;
2516 err = cfg->check_syntax(odr_encode(), m_default_target,
2517 pr->preferredRecordSyntax,
2518 pr->recordComposition,
2519 &addinfo, &stylesheet_name, &m_schema,
2520 &m_backend_type, &m_backend_charset,
2521 &m_usemarcon_ini_stage1,
2522 &m_usemarcon_ini_stage2
2524 if (stylesheet_name)
2526 m_parent->low_socket_close();
2529 if (m_stylesheet_xsp)
2530 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2531 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2534 m_stylesheet_offset = 0;
2535 xfree(stylesheet_name);
2537 m_parent->low_socket_open();
2541 pr->recordComposition = 0;
2542 m_marcxml_mode = marcxml;
2546 pr->preferredRecordSyntax =
2547 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2551 pr->preferredRecordSyntax =
2552 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2557 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2559 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2560 new_apdu->u.presentResponse->records =
2561 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2562 *new_apdu->u.presentResponse->presentStatus =
2563 Z_PresentStatus_failure;
2565 send_to_client(new_apdu);
2569 else if (m_backend_type)
2571 pr->preferredRecordSyntax =
2572 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2578 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2582 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2583 odr_malloc(o, sizeof(Z_ElementSetNames));
2584 esn->which = Z_ElementSetNames_generic;
2585 esn->u.generic = odr_strdup(o, schema);
2589 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2592 Yaz_ProxyConfig *cfg = check_reconfigure();
2594 t = cfg->get_explain_name(db, backend_db);
2596 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2603 xfree(m_default_target);
2604 m_default_target = xstrdup(t);
2608 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2611 if (strcmp(hreq->method, "GET"))
2613 if (hreq->path[0] != '/')
2615 const char *cp = hreq->path;
2618 if (*cp == '/' && strchr("/.", cp[1]))
2623 Yaz_ProxyConfig *cfg = check_reconfigure();
2625 if (!cfg->get_file_access_info(hreq->path+1))
2628 const char *fname = hreq->path+1;
2629 if (stat(fname, &sbuf))
2631 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2635 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2637 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2640 if (sbuf.st_size > (off_t) 1000000)
2642 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2647 ODR o = odr_encode();
2649 const char *ctype = cfg->check_mime_type(fname);
2650 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2651 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2653 hres->version = odr_strdup(o, m_http_version);
2654 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2655 if (m_http_keepalive)
2656 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2660 hres->content_len = sbuf.st_size;
2661 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2662 FILE *f = fopen(fname, "rb");
2665 fread(hres->content_buf, 1, hres->content_len, f);
2672 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2674 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2678 send_GDU(gdu, &len);
2679 recv_GDU_more(true);
2683 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2687 odr_destroy(m_s2z_odr_init);
2690 if (m_s2z_odr_search)
2692 odr_destroy(m_s2z_odr_search);
2693 m_s2z_odr_search = 0;
2696 m_http_keepalive = 0;
2698 if (!strcmp(hreq->version, "1.0"))
2700 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2701 if (v && !strcmp(v, "Keep-Alive"))
2702 m_http_keepalive = 1;
2704 m_http_keepalive = 0;
2705 m_http_version = "1.0";
2709 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2710 if (v && !strcmp(v, "close"))
2711 m_http_keepalive = 0;
2713 m_http_keepalive = 1;
2714 m_http_version = "1.1";
2717 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2718 char authorization_str[255];
2719 *authorization_str = '\0';
2720 if (a && strncasecmp(a, "Basic ", 6) == 0)
2721 base64_decode(a + 6, authorization_str, 254);
2723 Z_SRW_PDU *srw_pdu = 0;
2724 Z_SOAP *soap_package = 0;
2726 Z_SRW_diagnostic *diagnostic = 0;
2727 int num_diagnostic = 0;
2729 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2731 if (file_access(hreq))
2735 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2737 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2738 &charset, &diagnostic, &num_diagnostic) == 0)
2740 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2741 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2742 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2743 m_s2z_init_apdu = 0;
2744 m_s2z_search_apdu = 0;
2745 m_s2z_present_apdu = 0;
2747 m_s2z_stylesheet = 0;
2749 Z_IdAuthentication *auth = NULL;
2750 if (*authorization_str)
2752 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2753 auth->which = Z_IdAuthentication_idPass;
2754 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2755 auth->u.idPass->groupId = NULL;
2756 char *p = strchr(authorization_str, ':');
2761 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2763 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2766 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2769 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2771 const char *backend_db = srw_req->database;
2772 srw_get_client(srw_req->database, &backend_db);
2774 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2775 // recordXPath unsupported.
2776 if (srw_req->recordXPath)
2778 yaz_add_srw_diagnostic(odr_decode(),
2779 &diagnostic, &num_diagnostic,
2783 if (srw_req->sort_type != Z_SRW_sort_type_none)
2785 yaz_add_srw_diagnostic(odr_decode(),
2786 &diagnostic, &num_diagnostic,
2790 if (srw_req->stylesheet)
2792 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2794 // set packing for response records ..
2795 if (srw_req->recordPacking &&
2796 !strcmp(srw_req->recordPacking, "xml"))
2797 m_s2z_packing = Z_SRW_recordPacking_XML;
2799 m_s2z_packing = Z_SRW_recordPacking_string;
2803 Z_SRW_PDU *srw_pdu =
2804 yaz_srw_get(odr_encode(),
2805 Z_SRW_searchRetrieve_response);
2806 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2808 srw_res->diagnostics = diagnostic;
2809 srw_res->num_diagnostics = num_diagnostic;
2810 send_srw_response(srw_pdu);
2814 // prepare search PDU
2815 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2816 Z_APDU_searchRequest);
2817 Z_SearchRequest *z_searchRequest =
2818 m_s2z_search_apdu->u.searchRequest;
2820 z_searchRequest->num_databaseNames = 1;
2821 z_searchRequest->databaseNames = (char**)
2822 odr_malloc(m_s2z_odr_search, sizeof(char *));
2823 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2826 // query transformation
2827 Z_Query *query = (Z_Query *)
2828 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2829 z_searchRequest->query = query;
2831 if (srw_req->query_type == Z_SRW_query_type_cql)
2833 Z_External *ext = (Z_External *)
2834 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2835 ext->direct_reference =
2836 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2837 ext->indirect_reference = 0;
2838 ext->descriptor = 0;
2839 ext->which = Z_External_CQL;
2840 ext->u.cql = srw_req->query.cql;
2842 query->which = Z_Query_type_104;
2843 query->u.type_104 = ext;
2845 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2847 Z_RPNQuery *RPNquery;
2848 YAZ_PQF_Parser pqf_parser;
2850 pqf_parser = yaz_pqf_create ();
2852 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2853 srw_req->query.pqf);
2856 const char *pqf_msg;
2858 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2860 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2861 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2863 send_to_srw_client_error(10, 0);
2866 query->which = Z_Query_type_1;
2867 query->u.type_1 = RPNquery;
2869 yaz_pqf_destroy (pqf_parser);
2873 send_to_srw_client_error(7, "query");
2878 m_s2z_present_apdu = 0;
2880 if (srw_req->maximumRecords)
2881 max = *srw_req->maximumRecords;
2883 if (srw_req->startRecord)
2884 start = *srw_req->startRecord;
2887 // Some backend, such as Voyager doesn't honor piggyback
2888 // So we use present always (0 &&).
2889 if (0 && start <= 1) // Z39.50 piggyback
2891 *z_searchRequest->smallSetUpperBound = max;
2892 *z_searchRequest->mediumSetPresentNumber = max;
2893 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2895 z_searchRequest->preferredRecordSyntax =
2896 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2898 if (srw_req->recordSchema)
2900 z_searchRequest->smallSetElementSetNames =
2901 z_searchRequest->mediumSetElementSetNames =
2902 mk_esn_from_schema(m_s2z_odr_search,
2903 srw_req->recordSchema);
2906 else // Z39.50 present
2908 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2909 Z_APDU_presentRequest);
2910 Z_PresentRequest *z_presentRequest =
2911 m_s2z_present_apdu->u.presentRequest;
2912 *z_presentRequest->resultSetStartPoint = start;
2913 *z_presentRequest->numberOfRecordsRequested = max;
2914 z_presentRequest->preferredRecordSyntax =
2915 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2917 if (srw_req->recordSchema)
2919 z_presentRequest->recordComposition =
2920 (Z_RecordComposition *)
2921 odr_malloc(m_s2z_odr_search,
2922 sizeof(Z_RecordComposition));
2923 z_presentRequest->recordComposition->which =
2924 Z_RecordComp_simple;
2925 z_presentRequest->recordComposition->u.simple =
2926 mk_esn_from_schema(m_s2z_odr_search,
2927 srw_req->recordSchema);
2933 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2934 Z_APDU_initRequest);
2936 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2938 // prevent m_initRequest_apdu memory from being grabbed
2939 // in Yaz_Proxy::handle_incoming_Z_PDU
2940 m_initRequest_apdu = m_s2z_init_apdu;
2941 handle_incoming_Z_PDU(m_s2z_init_apdu);
2946 handle_incoming_Z_PDU(m_s2z_search_apdu);
2950 else if (srw_pdu->which == Z_SRW_explain_request)
2952 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2954 const char *backend_db = srw_req->database;
2955 srw_get_client(srw_req->database, &backend_db);
2957 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2960 if (srw_req->stylesheet)
2962 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2964 if (srw_req->recordPacking &&
2965 !strcmp(srw_req->recordPacking, "xml"))
2966 m_s2z_packing = Z_SRW_recordPacking_XML;
2968 m_s2z_packing = Z_SRW_recordPacking_string;
2972 send_srw_explain_response(diagnostic, num_diagnostic);
2978 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2979 Z_APDU_initRequest);
2981 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2983 // prevent m_initRequest_apdu memory from being grabbed
2984 // in Yaz_Proxy::handle_incoming_Z_PDU
2985 m_initRequest_apdu = m_s2z_init_apdu;
2986 handle_incoming_Z_PDU(m_s2z_init_apdu);
2989 send_srw_explain_response(0, 0);
2992 else if (srw_pdu->which == Z_SRW_scan_request)
2994 m_s2z_database = odr_strdup(m_s2z_odr_init,
2995 srw_pdu->u.scan_request->database);
2997 yaz_add_srw_diagnostic(odr_decode(),
2998 &diagnostic, &num_diagnostic,
3000 Z_SRW_PDU *srw_pdu =
3001 yaz_srw_get(odr_encode(),
3002 Z_SRW_scan_response);
3003 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3005 srw_res->diagnostics = diagnostic;
3006 srw_res->num_diagnostics = num_diagnostic;
3007 send_srw_response(srw_pdu);
3014 send_to_srw_client_error(4, 0);
3017 send_http_response(400);
3020 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3023 Z_OtherInformation **oi;
3024 get_otherInfoAPDU(apdu, &oi);
3026 if (apdu->u.initRequest->implementationId)
3027 yaz_log(YLOG_LOG, "%simplementationId: %s",
3028 m_session_str, apdu->u.initRequest->implementationId);
3029 if (apdu->u.initRequest->implementationName)
3030 yaz_log(YLOG_LOG, "%simplementationName: %s",
3031 m_session_str, apdu->u.initRequest->implementationName);
3032 if (apdu->u.initRequest->implementationVersion)
3033 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3034 m_session_str, apdu->u.initRequest->implementationVersion);
3035 if (m_initRequest_apdu == 0)
3037 if (m_initRequest_mem)
3038 nmem_destroy(m_initRequest_mem);
3040 m_initRequest_apdu = apdu;
3041 m_initRequest_mem = odr_extract_mem(odr_decode());
3043 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3044 preferredMessageSize;
3045 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3046 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3048 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3050 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3051 yaz_get_charneg_record(*oi);
3053 // Save proposal charsets and langs.
3054 if (ODR_MASK_GET(apdu->u.initRequest->options,
3055 Z_Options_negotiationModel)
3056 && charSetandLangRecord)
3059 yaz_get_proposal_charneg(m_referenceId_mem,
3060 charSetandLangRecord,
3061 &m_initRequest_oi_negotiation_charsets,
3062 &m_initRequest_oi_negotiation_num_charsets,
3063 &m_initRequest_oi_negotiation_langs,
3064 &m_initRequest_oi_negotiation_num_langs,
3065 &m_initRequest_oi_negotiation_selected);
3067 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3069 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3070 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3071 m_initRequest_oi_negotiation_charsets[i]:"none");
3073 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3075 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3076 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3077 m_initRequest_oi_negotiation_langs[i]:"none");
3079 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3080 m_session_str, m_initRequest_oi_negotiation_selected);
3082 // save init options for the response..
3083 m_initRequest_options = apdu->u.initRequest->options;
3085 apdu->u.initRequest->options =
3086 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3087 sizeof(Odr_bitmask));
3088 ODR_MASK_ZERO(apdu->u.initRequest->options);
3090 for (i = 0; i<= 24; i++)
3091 ODR_MASK_SET(apdu->u.initRequest->options, i);
3092 // check negotiation option
3093 if (!ODR_MASK_GET(m_initRequest_options,
3094 Z_Options_negotiationModel))
3096 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3097 Z_Options_negotiationModel);
3099 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3100 Z_Options_concurrentOperations);
3102 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3103 apdu->u.initRequest->protocolVersion =
3104 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3105 sizeof(Odr_bitmask));
3106 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3108 for (i = 0; i<= 8; i++)
3109 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3111 handle_charset_lang_negotiation(apdu);
3112 if (m_client->m_init_flag)
3114 if (handle_init_response_for_invalid_session(apdu))
3116 if (m_client->m_initResponse)
3118 Z_APDU *apdu2 = m_client->m_initResponse;
3119 apdu2->u.initResponse->otherInfo = 0;
3120 if (m_client->m_cookie && *m_client->m_cookie)
3121 set_otherInformationString(apdu2, VAL_COOKIE, 1,
3122 m_client->m_cookie);
3123 apdu2->u.initResponse->referenceId =
3124 apdu->u.initRequest->referenceId;
3125 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3126 apdu2->u.initResponse->protocolVersion =
3127 m_client->m_initResponse_version;
3129 handle_charset_lang_negotiation(apdu2);
3131 if (m_timeout_mode == timeout_busy)
3132 m_timeout_mode = timeout_normal;
3133 send_to_client(apdu2);
3137 m_client->m_init_flag = 1;
3140 Auth_Msg *m = new Auth_Msg;
3142 z_APDU(odr_encode(), &apdu, 0, "encode");
3143 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3144 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3145 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3146 odr_reset(odr_encode());
3149 m_my_thread->put(m);
3151 int ret = handle_authentication(apdu);
3152 result_authentication(apdu, ret);
3156 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3158 Z_ReferenceId **refid = get_referenceIdP(apdu);
3159 nmem_reset(m_referenceId_mem);
3160 if (refid && *refid)
3162 m_referenceId = (Z_ReferenceId *)
3163 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3164 m_referenceId->len = m_referenceId->size = (*refid)->len;
3165 m_referenceId->buf = (unsigned char *)
3166 nmem_malloc(m_referenceId_mem, (*refid)->len);
3167 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3172 if (!m_client && m_flag_invalid_session)
3174 // Got request for a session that is invalid..
3175 m_apdu_invalid_session = apdu; // save package
3176 m_mem_invalid_session = odr_extract_mem(odr_decode());
3177 apdu = m_initRequest_apdu; // but throw an init to the target
3180 if (apdu->which == Z_APDU_searchRequest)
3181 m_search_stat.add_bytes(1);
3183 // Determine our client.
3184 Z_OtherInformation **oi;
3185 get_otherInfoAPDU(apdu, &oi);
3186 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3190 { // HTTP. Send not found
3191 send_http_response(404);
3196 // Z39.50 just shutdown
3202 m_client->m_server = this;
3204 if (apdu->which == Z_APDU_initRequest)
3207 handle_incoming_Z_PDU_2(apdu);
3210 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3212 handle_max_record_retrieve(apdu);
3215 apdu = handle_syntax_validation(apdu);
3218 apdu = handle_query_transformation(apdu);
3221 apdu = handle_target_charset_conversion(apdu);
3224 apdu = handle_query_validation(apdu);
3227 apdu = result_set_optimize(apdu);
3231 m_client->timeout(m_target_idletime); // mark it active even
3232 recv_GDU_more(true);
3233 // though we didn't use it
3237 // delete other info construct completely if 0 elements
3238 Z_OtherInformation **oi;
3239 get_otherInfoAPDU(apdu, &oi);
3240 if (oi && *oi && (*oi)->num_elements == 0)
3243 if (apdu->which == Z_APDU_presentRequest &&
3244 m_client->m_resultSetStartPoint == 0)
3246 Z_PresentRequest *pr = apdu->u.presentRequest;
3247 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3248 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3250 m_client->m_resultSetStartPoint = 0;
3252 if (m_client->send_to_target(apdu) < 0)
3254 m_client->shutdown();
3257 m_client->m_waiting = 1;
3260 void Yaz_Proxy::connectNotify()
3264 void Yaz_Proxy::releaseClient()
3266 xfree(m_proxyTarget);
3268 m_flag_invalid_session = 0;
3269 // only keep if keep_alive flag is set...
3271 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3272 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3273 m_client->m_waiting == 0)
3275 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3277 m_client->get_hostname());
3278 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3279 m_session_str, m_client->m_pdu_recv,
3280 m_client->m_bytes_sent + m_client->m_bytes_recv,
3281 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3282 assert (m_client->m_waiting != 2);
3283 // Tell client (if any) that no server connection is there..
3284 m_client->m_server = 0;
3289 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3291 m_client->get_hostname());
3292 assert (m_client->m_waiting != 2);
3298 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3304 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3308 m_parent->pre_init();
3311 bool Yaz_Proxy::dec_ref()
3313 m_http_keepalive = 0;
3316 if (m_ref_count > 0)
3325 const char *Yaz_ProxyClient::get_session_str()
3329 return m_server->get_session_str();
3332 void Yaz_ProxyClient::shutdown()
3334 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3339 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3340 m_server->dec_ref();
3346 void Yaz_Proxy::failNotify()
3349 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3353 void Yaz_Proxy::send_response_fail_client(const char *addr)
3357 Z_SRW_diagnostic *diagnostic = 0;
3358 int num_diagnostic = 0;
3360 yaz_add_srw_diagnostic(odr_encode(),
3361 &diagnostic, &num_diagnostic,
3362 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3363 if (m_s2z_search_apdu)
3364 send_srw_search_response(diagnostic, num_diagnostic);
3366 send_srw_explain_response(diagnostic, num_diagnostic);
3369 void Yaz_ProxyClient::failNotify()
3372 m_server->inc_request_no();
3373 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3374 get_session_str(), get_hostname());
3377 m_server->send_response_fail_client(get_hostname());
3381 void Yaz_ProxyClient::connectNotify()
3383 const char *s = get_session_str();
3384 const char *h = get_hostname();
3385 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3387 timeout(m_target_idletime);
3392 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3393 *the_PDU_Observable, int fd)
3395 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3398 Yaz_ProxyClient::~Yaz_ProxyClient()
3403 m_next->m_prev = m_prev;
3404 m_waiting = 2; // for debugging purposes only.
3405 odr_destroy(m_init_odr);
3406 odr_destroy(m_idAuthentication_odr);
3407 delete m_last_query;
3408 xfree (m_last_resultSetId);
3412 void Yaz_ProxyClient::pre_init_client()
3414 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3415 Z_InitRequest *req = apdu->u.initRequest;
3418 for (i = 0; i<= 24; i++)
3419 ODR_MASK_SET(req->options, i);
3420 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3421 Z_Options_negotiationModel);
3422 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3423 Z_Options_concurrentOperations);
3424 for (i = 0; i<= 10; i++)
3425 ODR_MASK_SET(req->protocolVersion, i);
3427 if (send_to_target(apdu) < 0)
3438 void Yaz_Proxy::pre_init()
3441 const char *name = 0;
3442 const char *zurl_in_use[MAX_ZURL_PLEX];
3443 int limit_bw, limit_pdu, limit_req, limit_search;
3444 int target_idletime, client_idletime;
3446 int keepalive_limit_bw, keepalive_limit_pdu;
3448 const char *cql2rpn = 0;
3449 const char *authentication = 0;
3450 const char *negotiation_charset = 0;
3451 const char *negotiation_lang = 0;
3453 Yaz_ProxyConfig *cfg = check_reconfigure();
3457 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3462 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3463 &limit_bw, &limit_pdu, &limit_req,
3465 &target_idletime, &client_idletime,
3467 &keepalive_limit_bw,
3468 &keepalive_limit_pdu,
3472 &negotiation_charset,
3480 for (j = 0; zurl_in_use[j]; j++)
3484 int spare_waiting = 0;
3487 for (c = m_clientPool; c; c = c->m_next)
3489 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3491 if (c->m_cookie == 0)
3493 if (c->m_server == 0)
3505 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3506 "sparew=%d preinit=%d",m_session_str,
3507 name, zurl_in_use[j], in_use, other,
3508 spare, spare_waiting, pre_init);
3509 if (spare + spare_waiting < pre_init)
3511 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3512 c->m_next = m_clientPool;
3514 c->m_next->m_prev = &c->m_next;
3516 c->m_prev = &m_clientPool;
3518 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3519 c->set_APDU_yazlog(1);
3521 c->set_APDU_yazlog(0);
3523 if (c->client(zurl_in_use[j]))
3531 c->m_target_idletime = target_idletime;
3532 c->m_seqno = m_seqno++;
3539 void Yaz_Proxy::timeoutNotify()
3544 switch(m_timeout_mode)
3546 case timeout_normal:
3550 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3553 case timeout_reduce:
3554 timeout(m_client_idletime);
3555 m_timeout_mode = timeout_busy;
3556 gdu = m_timeout_gdu;
3558 recv_GDU_normal(gdu);
3561 assert(m_stylesheet_nprl);
3562 convert_xsl_delay();
3563 recv_GDU_more(true);
3573 void Yaz_Proxy::markInvalid()
3576 m_flag_invalid_session = 1;
3579 void Yaz_ProxyClient::timeoutNotify()
3582 m_server->inc_request_no();
3584 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3588 m_server->send_response_fail_client(get_hostname());
3590 Yaz_Proxy *proxy_root = m_root;
3594 proxy_root->pre_init();
3597 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3598 Yaz_Proxy *parent) :
3599 Z_Assoc (the_PDU_Observable)
3606 m_last_resultSetId = 0;
3607 m_last_resultCount = 0;
3611 m_init_odr = odr_createmem (ODR_DECODE);
3613 m_initResponse_options = 0;
3614 m_initResponse_version = 0;
3615 m_initResponse_preferredMessageSize = 0;
3616 m_initResponse_maximumRecordSize = 0;
3617 m_resultSetStartPoint = 0;
3618 m_bytes_sent = m_bytes_recv = 0;
3622 m_target_idletime = 600;
3624 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3625 m_idAuthentication_ber_buf = 0;
3626 m_idAuthentication_ber_size = 0;
3629 const char *Yaz_Proxy::option(const char *name, const char *value)
3631 if (!strcmp (name, "optimize")) {
3634 m_optimize = xstrdup (value);
3641 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3646 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3648 if (apdu->which == Z_GDU_Z3950)
3649 recv_Z_PDU(apdu->u.z3950, len);
3650 else if (apdu->which == Z_GDU_HTTP_Response)
3651 recv_HTTP_response(apdu->u.HTTP_Response, len);
3656 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3658 if (!m_flag_invalid_session)
3660 m_flag_invalid_session = 0;
3661 handle_incoming_Z_PDU(m_apdu_invalid_session);
3662 assert (m_mem_invalid_session);
3663 nmem_destroy(m_mem_invalid_session);
3664 m_mem_invalid_session = 0;
3668 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3670 m_bytes_recv += len;
3674 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3675 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3676 apdu_name(apdu), get_hostname(), len);
3677 if (apdu->which == Z_APDU_initResponse)
3679 if (!m_server) // if this is a pre init session , check for more
3681 NMEM nmem = odr_extract_mem (odr_decode());
3682 odr_reset (m_init_odr);
3683 nmem_transfer (m_init_odr->mem, nmem);
3684 m_initResponse = apdu;
3685 m_initResponse_options = apdu->u.initResponse->options;
3686 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3687 m_initResponse_preferredMessageSize =
3688 *apdu->u.initResponse->preferredMessageSize;
3689 m_initResponse_maximumRecordSize =
3690 *apdu->u.initResponse->maximumRecordSize;
3692 Z_InitResponse *ir = apdu->u.initResponse;
3694 // apply YAZ Proxy version
3695 char *imv0 = ir->implementationVersion;
3696 char *imv1 = (char*)
3697 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3702 strcat(imv1, "/" VERSION);
3704 ir->implementationVersion = imv1;
3706 // apply YAZ Proxy implementation name
3707 char *im0 = ir->implementationName;
3709 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3716 strcat(im1, "(YAZ Proxy)");
3717 ir->implementationName = im1;
3719 nmem_destroy (nmem);
3721 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3724 if (apdu->which == Z_APDU_searchResponse)
3726 Z_SearchResponse *sr = apdu->u.searchResponse;
3727 m_last_resultCount = *sr->resultCount;
3728 int status = *sr->searchStatus;
3729 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3733 if (sr->records && sr->records->which == Z_Records_DBOSD)
3735 m_cache.add(odr_decode(),
3736 sr->records->u.databaseOrSurDiagnostics, 1,
3741 if (apdu->which == Z_APDU_presentResponse)
3743 Z_PresentResponse *pr = apdu->u.presentResponse;
3747 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3748 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3749 sr->referenceId = pr->referenceId;
3750 *sr->resultCount = m_last_resultCount;
3751 sr->records = pr->records;
3752 sr->nextResultSetPosition = pr->nextResultSetPosition;
3753 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3757 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3759 m_cache.add(odr_decode(),
3760 pr->records->u.databaseOrSurDiagnostics,
3761 m_resultSetStartPoint, -1);
3762 m_resultSetStartPoint = 0;
3766 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3768 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3771 server->send_to_client(apdu);
3772 if (apdu->which == Z_APDU_close)
3775 server->recv_GDU_more(true);
3778 void Yaz_Proxy::low_socket_close()
3783 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3784 if (m_lo_fd[i] >= 0)
3785 ::close(m_lo_fd[i]);
3789 void Yaz_Proxy::low_socket_open()
3794 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3795 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3799 int Yaz_Proxy::server(const char *addr)
3801 int r = Z_Assoc::server(addr);
3804 yaz_log(YLOG_LOG, "%sStarted proxy "
3808 " on %s", m_session_str, addr);
3814 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3816 const char *base64_chars =
3817 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3818 int len = strlen(base64);
3822 for (int pos = 0; pos <= len; pos++)
3824 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3827 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3830 char ch = (char) (ch_ptr - base64_chars);
3834 buf[buf_pos] = ch << 2;
3837 buf[buf_pos++] += (ch & 0x30) >> 4;
3838 buf[buf_pos] = (ch & 0x0f) << 4;
3841 buf[buf_pos++] += (ch & 0x3c) >> 2;
3842 buf[buf_pos] = (ch & 0x03) << 6;
3845 buf[buf_pos++] += ch;
3852 buf[buf_pos] = '\0';
3858 * indent-tabs-mode: nil
3860 * vim: shiftwidth=4 tabstop=8 expandtab