1 /* $Id: yaz-proxy.cpp,v 1.67 2006-06-09 09:01:31 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();
436 peername = "nullpeer";
438 if (m_log_mask & PROXY_LOG_IP_CLIENT)
439 sprintf(session_str, "%ld:%d %.80s %d ",
440 (long) time(0), m_session_no, peername, 0);
442 sprintf(session_str, "%ld:%d %d ",
443 (long) time(0), m_session_no, 0);
446 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
448 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
449 m_socket_observable, this);
451 new_proxy->m_config = 0;
452 new_proxy->m_config_fname = 0;
453 new_proxy->timeout(m_client_idletime);
454 new_proxy->m_target_idletime = m_target_idletime;
455 new_proxy->set_default_target(m_default_target);
456 new_proxy->m_max_clients = m_max_clients;
457 new_proxy->m_log_mask = m_log_mask;
458 new_proxy->m_session_no = m_session_no;
461 // in case we want to watch a particular client..
462 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
463 new_proxy->m_log_mask = 255;
466 new_proxy->set_APDU_log(get_APDU_log());
467 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
468 new_proxy->set_APDU_yazlog(1);
470 new_proxy->set_APDU_yazlog(0);
471 strcpy(new_proxy->m_session_str, session_str);
472 new_proxy->m_peername = xstrdup(peername);
473 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
474 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
475 // create thread object the first time we get an incoming connection
477 m_my_thread = new Msg_Thread(m_socket_observable, 1);
478 new_proxy->m_my_thread = m_my_thread;
482 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
485 Z_OtherInformationUnit *oi;
487 ent.proto = PROTO_Z3950;
488 ent.oclass = CLASS_USERINFO;
489 ent.value = (oid_value) VAL_COOKIE;
490 assert (oid_ent_to_oid (&ent, oid));
492 if (oid_ent_to_oid (&ent, oid) &&
493 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
494 oi->which == Z_OtherInfo_characterInfo)
495 return oi->information.characterInfo;
498 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
501 Z_OtherInformationUnit *oi;
503 ent.proto = PROTO_Z3950;
504 ent.oclass = CLASS_USERINFO;
505 ent.value = (oid_value) VAL_PROXY;
506 if (oid_ent_to_oid (&ent, oid) &&
507 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
508 oi->which == Z_OtherInfo_characterInfo)
509 return oi->information.characterInfo;
512 const char *Yaz_Proxy::load_balance(const char **url)
514 int zurl_in_use[MAX_ZURL_PLEX];
515 int zurl_in_spare[MAX_ZURL_PLEX];
519 for (i = 0; i<MAX_ZURL_PLEX; i++)
522 zurl_in_spare[i] = 0;
524 for (c = m_parent->m_clientPool; c; c = c->m_next)
526 for (i = 0; url[i]; i++)
527 if (!strcmp(url[i], c->get_hostname()))
530 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
534 int min_use = 100000;
535 int spare_for_min = 0;
537 const char *ret_min = 0;
538 const char *ret_spare = 0;
539 for (i = 0; url[i]; i++)
541 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
542 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
543 if (min_use > zurl_in_use[i])
546 min_use = zurl_in_use[i];
547 spare_for_min = zurl_in_spare[i];
549 if (max_spare < zurl_in_spare[i])
552 max_spare = zurl_in_spare[i];
558 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
559 const char *proxy_host)
562 Yaz_Proxy *parent = m_parent;
563 Yaz_ProxyClient *c = m_client;
567 const char *url[MAX_ZURL_PLEX];
568 Yaz_ProxyConfig *cfg = check_reconfigure();
571 if (parent && parent->m_debug_mode)
573 // only to be enabled for debugging...
574 if (!strcmp(proxy_host, "stop"))
577 xfree(m_default_target);
578 m_default_target = xstrdup(proxy_host);
580 proxy_host = m_default_target;
581 int client_idletime = -1;
582 const char *cql2rpn_fname = 0;
583 const char *negotiation_charset = 0;
584 const char *negotiation_lang = 0;
585 const char *query_charset = 0;
586 const char *default_client_query_charset = 0;
587 url[0] = m_default_target;
592 cfg->get_target_info(proxy_host, url, &m_bw_max,
593 &m_pdu_max, &m_max_record_retrieve,
595 &m_target_idletime, &client_idletime,
596 &parent->m_max_clients,
597 &m_keepalive_limit_bw,
598 &m_keepalive_limit_pdu,
601 &negotiation_charset,
604 &default_client_query_charset);
606 if (client_idletime != -1)
608 m_client_idletime = client_idletime;
609 timeout(m_client_idletime);
612 // get those FILE descriptors available
613 m_parent->low_socket_close();
615 m_cql2rpn.set_pqf_file(cql2rpn_fname);
616 // reserve them again
617 m_parent->low_socket_open();
619 if (negotiation_charset || negotiation_lang || default_client_query_charset)
621 set_proxy_negotiation(negotiation_charset,
622 negotiation_lang, default_client_query_charset);
624 m_charset_converter->set_target_query_charset(query_charset);
627 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
630 // we don't handle multiplexing for cookie session, so we just
631 // pick the first one in this case (anonymous users will be able
632 // to use any backend)
633 if (cookie && *cookie)
634 m_proxyTarget = (char*) xstrdup(url[0]);
636 m_proxyTarget = (char*) xstrdup(load_balance(url));
638 if (cookie && *cookie)
639 { // search in sessions with a cookie
640 for (c = parent->m_clientPool; c; c = c->m_next)
643 assert (*c->m_prev == c);
644 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
645 !strcmp(m_proxyTarget, c->get_hostname()))
648 // The following handles "cancel"
649 // If connection is busy (waiting for PDU) and
650 // we have an initRequest we can safely do re-open
651 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
653 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
660 c->m_last_resultCount = 0;
661 c->m_sr_transform = 0;
663 c->m_resultSetStartPoint = 0;
664 c->m_target_idletime = m_target_idletime;
665 if (c->client(m_proxyTarget))
672 c->m_seqno = parent->m_seqno;
673 if (c->m_server && c->m_server != this)
674 c->m_server->m_client = 0;
677 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
682 else if (!c && apdu->which == Z_APDU_initRequest )
684 // anonymous sessions without cookie.
685 // if authentication is set it is NOT anonymous se we can't share them.
686 // If charset and lang negotiation is use it is NOT anonymous session too.
687 for (c = parent->m_clientPool; c; c = c->m_next)
690 assert(*c->m_prev == c);
691 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
692 && c->compare_idAuthentication(apdu)
693 && c->compare_charset(apdu)
694 && !strcmp(m_proxyTarget, c->get_hostname()))
697 yaz_log (YLOG_LOG, "%sREUSE %d %s",
698 m_session_str, parent->m_seqno, c->get_hostname());
700 c->m_seqno = parent->m_seqno;
701 assert(c->m_server == 0);
704 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
705 c->set_APDU_yazlog(1);
707 c->set_APDU_yazlog(0);
719 if (apdu->which != Z_APDU_initRequest)
721 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
724 // go through list of clients - and find the lowest/oldest one.
725 Yaz_ProxyClient *c_min = 0;
727 int no_of_clients = 0;
728 if (parent->m_clientPool)
729 yaz_log (YLOG_DEBUG, "Existing sessions");
730 for (c = parent->m_clientPool; c; c = c->m_next)
732 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
733 c->m_waiting, c->get_hostname(),
734 c->m_cookie ? c->m_cookie : "");
736 if (min_seq < 0 || c->m_seqno < min_seq)
738 min_seq = c->m_seqno;
742 if (no_of_clients >= parent->m_max_clients)
745 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
747 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
748 m_session_str, parent->m_max_clients, c->m_seqno);
749 if (c->m_server && c->m_server != this)
750 c->m_server->dec_ref();
754 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
755 m_session_str, parent->m_max_clients,
756 c->m_seqno, parent->m_seqno, c->get_hostname());
760 c->m_cookie = xstrdup(cookie);
761 c->m_seqno = parent->m_seqno;
762 if (c->m_server && c->m_server != this)
764 c->m_server->m_client = 0;
765 c->m_server->dec_ref();
768 c->m_target_idletime = m_target_idletime;
769 c->timeout(m_target_idletime);
771 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
772 c->set_APDU_yazlog(1);
774 c->set_APDU_yazlog(0);
781 yaz_log (YLOG_LOG, "%sNEW %d %s",
782 m_session_str, parent->m_seqno, m_proxyTarget);
783 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
784 c->m_next = parent->m_clientPool;
786 c->m_next->m_prev = &c->m_next;
787 parent->m_clientPool = c;
788 c->m_prev = &parent->m_clientPool;
794 c->m_cookie = xstrdup(cookie);
796 c->m_seqno = parent->m_seqno;
798 c->m_last_resultCount = 0;
801 c->m_sr_transform = 0;
803 c->m_resultSetStartPoint = 0;
805 if (c->client(m_proxyTarget))
810 c->m_target_idletime = m_target_idletime;
813 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
814 c->set_APDU_yazlog(1);
816 c->set_APDU_yazlog(0);
818 c->set_idAuthentication(apdu);
820 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
824 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
827 for (i = 0; i<num; i++)
830 Z_DefaultDiagFormat *r;
831 Z_DiagRec *p = pp[i];
832 if (p->which != Z_DiagRec_defaultFormat)
834 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
838 r = p->u.defaultFormat;
839 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
840 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
841 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
844 case Z_DefaultDiagFormat_v2Addinfo:
845 yaz_log(YLOG_LOG, "%sError %d %s:%s",
847 *r->condition, diagbib1_str(*r->condition),
850 case Z_DefaultDiagFormat_v3Addinfo:
851 yaz_log(YLOG_LOG, "%sError %d %s:%s",
853 *r->condition, diagbib1_str(*r->condition),
860 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
862 if (!m_stylesheet_xsp || p->num_records <= 0)
864 return 0; /* no XSLT to be done ... */
867 m_stylesheet_offset = 0;
868 m_stylesheet_nprl = p;
869 m_stylesheet_apdu = apdu;
870 m_timeout_mode = timeout_xsl;
876 void Yaz_Proxy::convert_xsl_delay()
879 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
880 if (npr->which == Z_NamePlusRecord_databaseRecord)
882 Z_External *r = npr->u.databaseRecord;
883 if (r->which == Z_External_octet)
886 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
888 xmlDocPtr res, doc = xmlParseMemory(
889 (char*) r->u.octet_aligned->buf,
890 r->u.octet_aligned->len);
893 yaz_log(YLOG_LOG, "%sXSLT convert %d",
894 m_session_str, m_stylesheet_offset);
895 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
902 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
904 m_stylesheet_nprl->records[m_stylesheet_offset]->
906 z_ext_record(odr_encode(), VAL_TEXT_XML,
907 (char*) out_buf, out_len);
916 m_stylesheet_offset++;
917 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
919 m_timeout_mode = timeout_normal;
920 m_stylesheet_nprl = 0;
922 if (m_stylesheet_xsp)
923 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
925 m_stylesheet_xsp = 0;
926 timeout(m_client_idletime);
927 send_PDU_convert(m_stylesheet_apdu);
933 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
935 if (m_frontend_type != VAL_NONE)
938 for (i = 0; i < p->num_records; i++)
940 Z_NamePlusRecord *npr = p->records[i];
941 if (npr->which == Z_NamePlusRecord_databaseRecord)
943 Z_External *r = npr->u.databaseRecord;
944 if (r->which == Z_External_octet)
947 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
949 if (!m_usemarcon->m_stage1)
951 m_usemarcon->m_stage1 = new CDetails();
953 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
954 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
955 int res = m_usemarcon->m_stage1->Start();
960 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
961 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
963 if (!m_usemarcon->m_stage2)
965 m_usemarcon->m_stage2 = new CDetails();
967 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
968 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
969 res = m_usemarcon->m_stage2->Start();
973 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
977 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
980 npr->u.databaseRecord =
981 z_ext_record(odr_encode(),
989 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
995 npr->u.databaseRecord =
996 z_ext_record(odr_encode(),
998 (char*) r->u.octet_aligned->buf,
999 r->u.octet_aligned->len);
1006 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1007 const char *backend_charset)
1009 int sel = m_charset_converter->get_client_charset_selected();
1010 const char *client_record_charset =
1011 m_charset_converter->get_client_query_charset();
1012 if (sel && backend_charset && client_record_charset &&
1013 strcmp(backend_charset, client_record_charset))
1016 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1018 yaz_marc_t mt = yaz_marc_create();
1019 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1020 yaz_marc_iconv(mt, cd);
1021 for (i = 0; i < p->num_records; i++)
1023 Z_NamePlusRecord *npr = p->records[i];
1024 if (npr->which == Z_NamePlusRecord_databaseRecord)
1026 Z_External *r = npr->u.databaseRecord;
1027 oident *ent = oid_getentbyoid(r->direct_reference);
1028 if (!ent || ent->value == VAL_NONE)
1031 if (ent->value == VAL_SUTRS)
1033 WRBUF w = wrbuf_alloc();
1035 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1036 r->u.octet_aligned->len);
1037 npr->u.databaseRecord =
1038 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1042 else if (ent->value == VAL_TEXT_XML)
1046 else if (r->which == Z_External_octet)
1050 if (yaz_marc_decode_buf(mt,
1051 (char*) r->u.octet_aligned->buf,
1052 r->u.octet_aligned->len,
1055 npr->u.databaseRecord =
1056 z_ext_record(odr_encode(), ent->value, result, rlen);
1057 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1064 yaz_iconv_close(cd);
1065 yaz_marc_destroy(mt);
1069 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1070 const char *backend_charset)
1073 if (!backend_charset)
1074 backend_charset = "MARC-8";
1075 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1076 yaz_marc_t mt = yaz_marc_create();
1077 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1078 yaz_marc_iconv(mt, cd);
1079 for (i = 0; i < p->num_records; i++)
1081 Z_NamePlusRecord *npr = p->records[i];
1082 if (npr->which == Z_NamePlusRecord_databaseRecord)
1084 Z_External *r = npr->u.databaseRecord;
1085 if (r->which == Z_External_OPAC)
1087 WRBUF w = wrbuf_alloc();
1089 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1090 npr->u.databaseRecord = z_ext_record(
1091 odr_encode(), VAL_TEXT_XML,
1092 wrbuf_buf(w), wrbuf_len(w)
1096 else if (r->which == Z_External_octet)
1100 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1101 r->u.octet_aligned->len,
1104 npr->u.databaseRecord =
1105 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1111 yaz_iconv_close(cd);
1112 yaz_marc_destroy(mt);
1115 void Yaz_Proxy::logtime()
1117 #if HAVE_GETTIMEOFDAY
1118 struct timeval *tv = (struct timeval*) m_time_tv;
1122 gettimeofday(&tv1, 0);
1123 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1124 (tv1.tv_usec - tv->tv_usec);
1126 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1127 diff/1000000, (diff/1000)%1000);
1134 int Yaz_Proxy::send_http_response(int code)
1136 ODR o = odr_encode();
1137 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1138 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1140 hres->version = odr_strdup(o, m_http_version);
1141 if (m_http_keepalive)
1142 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1146 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1148 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1152 int r = send_GDU(gdu, &len);
1153 m_bytes_sent += len;
1154 m_bw_stat.add_bytes(len);
1157 recv_GDU_more(true);
1162 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1164 ODR o = odr_encode();
1165 const char *ctype = "text/xml";
1166 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1167 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1169 hres->version = odr_strdup(o, m_http_version);
1170 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1171 if (m_http_keepalive)
1172 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1175 if (http_code == 401)
1176 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1178 static Z_SOAP_Handler soap_handlers[2] = {
1180 {"http://www.loc.gov/zing/srw/", 0,
1181 (Z_SOAP_fun) yaz_srw_codec},
1186 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1187 soap_package->which = Z_SOAP_generic;
1188 soap_package->u.generic =
1189 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1190 soap_package->u.generic->no = 0;
1191 soap_package->u.generic->ns = soap_handlers[0].ns;
1192 soap_package->u.generic->p = (void *) srw_pdu;
1193 soap_package->ns = m_soap_ns;
1194 z_soap_codec_enc_xsl(o, &soap_package,
1195 &hres->content_buf, &hres->content_len,
1196 soap_handlers, 0, m_s2z_stylesheet);
1197 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1199 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1203 int r = send_GDU(gdu, &len);
1204 m_bytes_sent += len;
1205 m_bw_stat.add_bytes(len);
1208 recv_GDU_more(true);
1213 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1215 ODR o = odr_encode();
1216 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1217 odr_malloc(o, sizeof(*diagnostic));
1218 int num_diagnostic = 1;
1219 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1220 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1223 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1224 Z_DefaultDiagFormat *ddf)
1226 int bib1_code = *ddf->condition;
1227 if (bib1_code == 109)
1229 srw_res->num_diagnostics = 1;
1230 srw_res->diagnostics = (Z_SRW_diagnostic *)
1231 odr_malloc(o, sizeof(*srw_res->diagnostics));
1232 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1233 yaz_diag_bib1_to_srw(*ddf->condition),
1238 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1240 ODR o = odr_encode();
1241 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1242 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1244 srw_res->numberOfRecords = odr_intdup (o, hits);
1245 if (records && records->which == Z_Records_DBOSD)
1247 srw_res->num_records =
1248 records->u.databaseOrSurDiagnostics->num_records;
1250 srw_res->records = (Z_SRW_record *)
1251 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1252 for (i = 0; i < srw_res->num_records; i++)
1254 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1255 if (npr->which != Z_NamePlusRecord_databaseRecord)
1257 srw_res->records[i].recordSchema = "diagnostic";
1258 srw_res->records[i].recordPacking = m_s2z_packing;
1259 srw_res->records[i].recordData_buf = "67";
1260 srw_res->records[i].recordData_len = 2;
1261 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1264 Z_External *r = npr->u.databaseRecord;
1265 oident *ent = oid_getentbyoid(r->direct_reference);
1266 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1268 srw_res->records[i].recordSchema = m_schema;
1269 srw_res->records[i].recordPacking = m_s2z_packing;
1270 srw_res->records[i].recordData_buf = (char*)
1271 r->u.octet_aligned->buf;
1272 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1273 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1277 srw_res->records[i].recordSchema = "diagnostic";
1278 srw_res->records[i].recordPacking = m_s2z_packing;
1279 srw_res->records[i].recordData_buf = "67";
1280 srw_res->records[i].recordData_len = 2;
1281 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1285 if (records && records->which == Z_Records_NSD)
1288 http_code = z_to_srw_diag(odr_encode(), srw_res,
1289 records->u.nonSurrogateDiagnostic);
1291 return send_http_response(http_code);
1293 return send_srw_response(srw_pdu);
1297 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1298 int num_diagnostics, int http_code /* = 200 */)
1300 ODR o = odr_encode();
1301 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1302 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1304 srw_res->num_diagnostics = num_diagnostics;
1305 srw_res->diagnostics = diagnostics;
1306 return send_srw_response(srw_pdu, http_code);
1309 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1310 int num_diagnostics)
1312 Yaz_ProxyConfig *cfg = check_reconfigure();
1316 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1317 m_s2z_database, &len);
1320 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1321 Z_SRW_explainResponse *er = res->u.explain_response;
1323 er->record.recordData_buf = b;
1324 er->record.recordData_len = len;
1325 er->record.recordPacking = m_s2z_packing;
1326 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1328 er->diagnostics = diagnostics;
1329 er->num_diagnostics = num_diagnostics;
1330 return send_srw_response(res);
1333 return send_http_response(404);
1336 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1340 if (apdu->which == Z_APDU_initResponse)
1342 Z_InitResponse *res = apdu->u.initResponse;
1343 if (*res->result == 0)
1345 send_to_srw_client_error(3, 0);
1347 else if (!m_s2z_search_apdu)
1349 send_srw_explain_response(0, 0);
1353 handle_incoming_Z_PDU(m_s2z_search_apdu);
1356 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1358 m_s2z_search_apdu = 0;
1359 Z_SearchResponse *res = apdu->u.searchResponse;
1360 m_s2z_hit_count = *res->resultCount;
1361 if (res->records && res->records->which == Z_Records_NSD)
1363 send_to_srw_client_ok(0, res->records, 1);
1365 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1368 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1370 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1372 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1374 *pr->numberOfRecordsRequested =
1375 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1377 handle_incoming_Z_PDU(m_s2z_present_apdu);
1381 m_s2z_present_apdu = 0;
1382 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1385 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1388 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1390 m_s2z_present_apdu = 0;
1391 Z_PresentResponse *res = apdu->u.presentResponse;
1392 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1398 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1399 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1401 int r = send_Z_PDU(apdu, &len);
1402 m_bytes_sent += len;
1403 m_bw_stat.add_bytes(len);
1410 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1412 int kill_session = 0;
1413 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1416 *new_id = m_referenceId;
1418 if (apdu->which == Z_APDU_searchResponse)
1420 Z_SearchResponse *sr = apdu->u.searchResponse;
1421 Z_Records *p = sr->records;
1422 if (p && p->which == Z_Records_NSD)
1424 Z_DiagRec dr, *dr_p = &dr;
1425 dr.which = Z_DiagRec_defaultFormat;
1426 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1428 *sr->searchStatus = 0;
1429 display_diagrecs(&dr_p, 1);
1433 if (p && p->which == Z_Records_DBOSD)
1437 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1440 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1441 if (m_marcxml_mode == marcxml)
1442 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1445 convert_records_charset(p->u.databaseOrSurDiagnostics,
1447 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1451 if (sr->resultCount)
1453 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1455 if (*sr->resultCount < 0)
1457 m_flag_invalid_session = 1;
1460 *sr->searchStatus = 0;
1462 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1463 *sr->resultCount = 0;
1468 else if (apdu->which == Z_APDU_presentResponse)
1470 Z_PresentResponse *sr = apdu->u.presentResponse;
1471 Z_Records *p = sr->records;
1472 if (p && p->which == Z_Records_NSD)
1474 Z_DiagRec dr, *dr_p = &dr;
1475 dr.which = Z_DiagRec_defaultFormat;
1476 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1477 if (*sr->presentStatus == Z_PresentStatus_success)
1478 *sr->presentStatus = Z_PresentStatus_failure;
1479 display_diagrecs(&dr_p, 1);
1481 if (p && p->which == Z_Records_DBOSD)
1485 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1488 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1489 if (m_marcxml_mode == marcxml)
1490 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1493 convert_records_charset(p->u.databaseOrSurDiagnostics,
1495 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1499 else if (apdu->which == Z_APDU_initResponse)
1501 //Get and check negotiation record
1502 //from init response.
1503 handle_charset_lang_negotiation(apdu);
1505 if (m_initRequest_options)
1508 (Odr_bitmask *)odr_malloc(odr_encode(),
1509 sizeof(Odr_bitmask));
1510 ODR_MASK_ZERO(nopt);
1513 for (i = 0; i<24; i++)
1514 if (ODR_MASK_GET(m_initRequest_options, i) &&
1515 ODR_MASK_GET(apdu->u.initResponse->options, i))
1516 ODR_MASK_SET(nopt, i);
1517 apdu->u.initResponse->options = nopt;
1519 if (m_initRequest_version)
1521 Z_ProtocolVersion *nopt =
1522 (Odr_bitmask *)odr_malloc(odr_encode(),
1523 sizeof(Odr_bitmask));
1524 ODR_MASK_ZERO(nopt);
1527 for (i = 0; i<8; i++)
1528 if (ODR_MASK_GET(m_initRequest_version, i) &&
1529 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1530 ODR_MASK_SET(nopt, i);
1531 apdu->u.initResponse->protocolVersion = nopt;
1533 apdu->u.initResponse->preferredMessageSize =
1534 odr_intdup(odr_encode(),
1535 m_client->m_initResponse_preferredMessageSize >
1536 m_initRequest_preferredMessageSize ?
1537 m_initRequest_preferredMessageSize :
1538 m_client->m_initResponse_preferredMessageSize);
1539 apdu->u.initResponse->maximumRecordSize =
1540 odr_intdup(odr_encode(),
1541 m_client->m_initResponse_maximumRecordSize >
1542 m_initRequest_maximumRecordSize ?
1543 m_initRequest_maximumRecordSize :
1544 m_client->m_initResponse_maximumRecordSize);
1547 int r = send_PDU_convert(apdu);
1554 m_parent->pre_init();
1559 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1561 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1563 odr_reset(m_idAuthentication_odr);
1564 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1565 m_idAuthentication_ber_buf =
1566 odr_getbuf(m_idAuthentication_odr,
1567 &m_idAuthentication_ber_size, 0);
1570 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1575 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1577 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1578 ODR odr = odr_createmem(ODR_ENCODE);
1580 z_IdAuthentication(odr, &t, 1, 0);
1582 char *buf = odr_getbuf(odr, &sz, 0);
1583 if (buf && m_idAuthentication_ber_buf
1584 && sz == m_idAuthentication_ber_size
1585 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1591 if (!buf && !m_idAuthentication_ber_buf)
1596 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1599 const char *apdu_name_tmp = apdu_name(apdu);
1600 int r = send_Z_PDU(apdu, &len);
1601 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1602 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1604 apdu_name_tmp, get_hostname(), len);
1605 m_bytes_sent += len;
1609 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1611 if (apdu->which == Z_APDU_presentRequest)
1613 Z_PresentRequest *pr = apdu->u.presentRequest;
1614 int toget = *pr->numberOfRecordsRequested;
1615 int start = *pr->resultSetStartPoint;
1617 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1618 pr->resultSetId, start, toget);
1620 if (*m_parent->m_optimize == '0')
1623 if (!m_client->m_last_resultSetId)
1625 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1626 new_apdu->u.presentResponse->records =
1627 create_nonSurrogateDiagnostics(
1629 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1631 send_to_client(new_apdu);
1634 if (start < 1 || toget < 0)
1636 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1637 new_apdu->u.presentResponse->records =
1638 create_nonSurrogateDiagnostics(
1640 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1642 send_to_client(new_apdu);
1645 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1647 if (start+toget-1 > m_client->m_last_resultCount)
1649 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1650 new_apdu->u.presentResponse->records =
1651 create_nonSurrogateDiagnostics(
1653 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1655 send_to_client(new_apdu);
1658 Z_NamePlusRecordList *npr;
1660 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1661 m_session_str, start, toget, yaz_z3950oid_to_str(
1662 pr->preferredRecordSyntax, &oclass));
1664 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1665 pr->preferredRecordSyntax,
1666 pr->recordComposition))
1668 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1670 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1671 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1673 new_apdu->u.presentResponse->numberOfRecordsReturned
1674 = odr_intdup(odr_encode(), toget);
1676 new_apdu->u.presentResponse->records = (Z_Records*)
1677 odr_malloc(odr_encode(), sizeof(Z_Records));
1678 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1679 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1680 new_apdu->u.presentResponse->nextResultSetPosition =
1681 odr_intdup(odr_encode(), start+toget);
1683 send_to_client(new_apdu);
1689 if (apdu->which != Z_APDU_searchRequest)
1691 Z_SearchRequest *sr = apdu->u.searchRequest;
1692 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1693 Yaz_Z_Databases this_databases;
1695 this_databases.set(sr->num_databaseNames, (const char **)
1698 this_query->set_Z_Query(sr->query);
1700 // Check for non-negative piggyback params.
1701 if (*sr->smallSetUpperBound < 0
1702 || *sr->largeSetLowerBound < 0
1703 || *sr->mediumSetPresentNumber < 0)
1705 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1706 // Not a present request.. But can't find better diagnostic
1707 new_apdu->u.searchResponse->records =
1708 create_nonSurrogateDiagnostics(
1710 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1711 send_to_client(new_apdu);
1715 char query_str[120];
1716 this_query->print(query_str, sizeof(query_str)-1);
1717 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1719 if (*m_parent->m_optimize != '0' &&
1720 m_client->m_last_ok && m_client->m_last_query &&
1721 m_client->m_last_query->match(this_query) &&
1722 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1723 m_client->m_last_databases.match(this_databases))
1726 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1727 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1729 Z_NamePlusRecordList *npr;
1730 int toget = *sr->mediumSetPresentNumber;
1731 Z_RecordComposition *comp = 0;
1733 if (toget > m_client->m_last_resultCount)
1734 toget = m_client->m_last_resultCount;
1736 if (sr->mediumSetElementSetNames)
1738 comp = (Z_RecordComposition *)
1739 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1740 comp->which = Z_RecordComp_simple;
1741 comp->u.simple = sr->mediumSetElementSetNames;
1744 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1745 sr->preferredRecordSyntax, comp))
1747 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1749 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1750 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1751 new_apdu->u.searchResponse->resultCount =
1752 &m_client->m_last_resultCount;
1754 new_apdu->u.searchResponse->numberOfRecordsReturned
1755 = odr_intdup(odr_encode(), toget);
1757 new_apdu->u.searchResponse->presentStatus =
1758 odr_intdup(odr_encode(), Z_PresentStatus_success);
1759 new_apdu->u.searchResponse->records = (Z_Records*)
1760 odr_malloc(odr_encode(), sizeof(Z_Records));
1761 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1762 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1763 new_apdu->u.searchResponse->nextResultSetPosition =
1764 odr_intdup(odr_encode(), toget+1);
1765 send_to_client(new_apdu);
1771 // send present request (medium size)
1772 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1775 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1776 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1777 pr->referenceId = sr->referenceId;
1778 pr->resultSetId = sr->resultSetName;
1779 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1780 *pr->numberOfRecordsRequested = toget;
1781 pr->recordComposition = comp;
1782 m_client->m_sr_transform = 1;
1786 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1787 m_client->m_last_resultCount <= 0)
1789 // large set. Return pseudo-search response immediately
1790 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1792 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1793 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1794 new_apdu->u.searchResponse->resultCount =
1795 &m_client->m_last_resultCount;
1796 send_to_client(new_apdu);
1801 Z_NamePlusRecordList *npr;
1802 int toget = m_client->m_last_resultCount;
1803 Z_RecordComposition *comp = 0;
1805 // send a present request (small set)
1807 if (sr->smallSetElementSetNames)
1809 comp = (Z_RecordComposition *)
1810 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1811 comp->which = Z_RecordComp_simple;
1812 comp->u.simple = sr->smallSetElementSetNames;
1815 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1816 sr->preferredRecordSyntax, comp))
1818 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1820 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1821 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1822 new_apdu->u.searchResponse->resultCount =
1823 &m_client->m_last_resultCount;
1825 new_apdu->u.searchResponse->numberOfRecordsReturned
1826 = odr_intdup(odr_encode(), toget);
1828 new_apdu->u.searchResponse->presentStatus =
1829 odr_intdup(odr_encode(), Z_PresentStatus_success);
1830 new_apdu->u.searchResponse->records = (Z_Records*)
1831 odr_malloc(odr_encode(), sizeof(Z_Records));
1832 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1833 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1834 new_apdu->u.searchResponse->nextResultSetPosition =
1835 odr_intdup(odr_encode(), toget+1);
1836 send_to_client(new_apdu);
1841 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1843 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1844 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1845 pr->referenceId = sr->referenceId;
1846 pr->resultSetId = sr->resultSetName;
1847 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1848 *pr->numberOfRecordsRequested = toget;
1849 pr->recordComposition = comp;
1850 m_client->m_sr_transform = 1;
1855 else // query doesn't match
1857 delete m_client->m_last_query;
1858 m_client->m_last_query = this_query;
1859 m_client->m_last_ok = 0;
1860 m_client->m_cache.clear();
1861 m_client->m_resultSetStartPoint = 0;
1863 xfree (m_client->m_last_resultSetId);
1864 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1866 m_client->m_last_databases.set(sr->num_databaseNames,
1867 (const char **) sr->databaseNames);
1873 void Yaz_Proxy::inc_request_no()
1876 char *cp = m_session_str + strlen(m_session_str)-1;
1879 while (*cp && *cp != ' ')
1882 sprintf(cp+1, "%d ", m_request_no);
1885 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1889 m_bytes_recv += len;
1891 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1892 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1893 m_session_str, gdu_name(apdu), len);
1896 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1897 if (apdu->which == Z_GDU_Z3950
1898 && apdu->u.z3950->which == Z_APDU_searchRequest)
1900 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1901 if (req->query && req->query->which == Z_Query_type_1)
1903 Z_RPNQuery *rpnquery = req->query->u.type_1;
1904 if (rpnquery->attributeSetId)
1906 rpnquery->attributeSetId[0] = -2;
1907 rpnquery->attributeSetId[1] = -1;
1908 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1914 #if HAVE_GETTIMEOFDAY
1915 gettimeofday((struct timeval *) m_time_tv, 0);
1917 m_bw_stat.add_bytes(len);
1918 m_pdu_stat.add_bytes(1);
1920 GDU *gdu = new GDU(apdu);
1922 if (gdu->get() == 0)
1925 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1930 m_in_queue.enqueue(gdu);
1931 recv_GDU_more(false);
1934 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1936 if (z_gdu->which == Z_GDU_HTTP_Request)
1938 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1939 const char *x_forwarded_for =
1940 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1941 if (x_forwarded_for)
1944 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1945 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1947 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1949 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1950 sprintf(m_session_str, "%ld:%d %.80s %d ",
1951 (long) time(0), m_session_no, m_peername, m_request_no);
1953 sprintf(m_session_str, "%ld:%d %d ",
1954 (long) time(0), m_session_no, m_request_no);
1959 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1962 m_parent->m_connect.cleanup(false);
1963 m_parent->m_connect.add_connect(m_peername);
1965 int connect_total = m_parent->m_connect.get_total(m_peername);
1966 int max_connect = m_parent->m_max_connect;
1968 if (max_connect && connect_total > max_connect)
1970 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1971 m_session_str, connect_total, max_connect);
1976 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1979 int limit_connect = m_parent->m_limit_connect;
1981 reduce = connect_total / limit_connect;
1986 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1988 HTTP_Forwarded(gdu->get());
1992 if (m_request_no == 1)
1996 connect_stat(block, reduce);
2000 m_timeout_mode = timeout_busy;
2006 int bw_total = m_bw_stat.get_total();
2007 int pdu_total = m_pdu_stat.get_total();
2008 int search_total = m_search_stat.get_total();
2010 assert(m_timeout_mode == timeout_busy);
2011 assert(m_timeout_gdu == 0);
2014 reduce += search_total / m_search_max;
2016 reduce += (bw_total/m_bw_max);
2019 if (pdu_total > m_pdu_max)
2021 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2022 reduce = (reduce > nreduce) ? reduce : nreduce;
2028 /* uncomment to force a big reduce */
2029 m_timeout_mode = timeout_reduce;
2030 m_timeout_gdu = gdu;
2031 timeout(3); // call us reduce seconds later
2036 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2037 m_session_str, reduce, bw_total, pdu_total, search_total,
2038 m_bw_max, m_pdu_max, m_search_max);
2040 m_timeout_mode = timeout_reduce;
2041 m_timeout_gdu = gdu;
2042 timeout(reduce); // call us reduce seconds later
2045 recv_GDU_normal(gdu);
2048 void Yaz_Proxy::recv_GDU_more(bool normal)
2051 if (normal && m_timeout_mode == timeout_busy)
2052 m_timeout_mode = timeout_normal;
2053 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2055 m_timeout_mode = timeout_busy;
2063 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2066 gdu->move_away_gdu(odr_decode(), &apdu);
2069 if (apdu->which == Z_GDU_Z3950)
2070 handle_incoming_Z_PDU(apdu->u.z3950);
2071 else if (apdu->which == Z_GDU_HTTP_Request)
2072 handle_incoming_HTTP(apdu->u.HTTP_Request);
2075 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2077 if (m_max_record_retrieve)
2079 if (apdu->which == Z_APDU_presentRequest)
2081 Z_PresentRequest *pr = apdu->u.presentRequest;
2082 if (pr->numberOfRecordsRequested &&
2083 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2084 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2089 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2091 if (apdu->which == Z_APDU_initRequest)
2093 if (m_initRequest_options &&
2094 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2095 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2097 // There is no negotiation proposal from
2098 // client's side. OK. The proxy negotiation
2100 Z_InitRequest *initRequest = apdu->u.initRequest;
2101 Z_OtherInformation **otherInfo;
2102 Z_OtherInformationUnit *oi;
2103 get_otherInfoAPDU(apdu, &otherInfo);
2104 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2107 ODR_MASK_SET(initRequest->options,
2108 Z_Options_negotiationModel);
2109 oi->which = Z_OtherInfo_externallyDefinedInfo;
2110 oi->information.externallyDefinedInfo =
2111 yaz_set_proposal_charneg(odr_encode(),
2112 (const char**)&m_proxy_negotiation_charset,
2113 m_proxy_negotiation_charset ? 1:0,
2114 (const char**)&m_proxy_negotiation_lang,
2115 m_proxy_negotiation_lang ? 1:0,
2119 else if (m_initRequest_options &&
2120 ODR_MASK_GET(m_initRequest_options,
2121 Z_Options_negotiationModel) &&
2122 m_charset_converter->get_target_query_charset())
2124 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2126 m_charset_converter->get_target_query_charset());
2127 Z_InitRequest *initRequest = apdu->u.initRequest;
2128 Z_CharSetandLanguageNegotiation *negotiation =
2129 yaz_get_charneg_record (initRequest->otherInfo);
2131 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2133 NMEM nmem = nmem_create();
2134 char **charsets = 0;
2135 int num_charsets = 0;
2139 yaz_get_proposal_charneg (nmem, negotiation,
2140 &charsets, &num_charsets,
2141 &langs, &num_langs, &selected);
2143 for (i = 0; i<num_charsets; i++)
2144 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2146 for (i = 0; i<num_langs; i++)
2147 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2150 const char *t_charset =
2151 m_charset_converter->get_target_query_charset();
2152 // sweep through charsets and pick the first supported
2154 for (i = 0; i<num_charsets; i++)
2156 const char *c_charset = charsets[i];
2157 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2160 if (i != num_charsets)
2162 // got one .. set up ODR for reverse direction
2163 const char *c_charset = charsets[i];
2164 odr_set_charset(odr_encode(), c_charset, t_charset);
2165 m_charset_converter->set_client_query_charset(c_charset);
2166 m_charset_converter->set_client_charset_selected(selected);
2169 ODR_MASK_CLEAR(m_initRequest_options,
2170 Z_Options_negotiationModel);
2171 yaz_del_charneg_record(&initRequest->otherInfo);
2175 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2179 else if (m_charset_converter->get_target_query_charset() &&
2180 m_proxy_negotiation_default_charset)
2182 m_charset_converter->
2183 set_client_query_charset(m_proxy_negotiation_default_charset);
2186 else if (apdu->which == Z_APDU_initResponse)
2188 Z_InitResponse *initResponse = apdu->u.initResponse;
2189 Z_OtherInformation **otherInfo;
2190 get_otherInfoAPDU(apdu, &otherInfo);
2192 Z_CharSetandLanguageNegotiation *charneg = 0;
2194 if (otherInfo && *otherInfo &&
2195 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2196 && (charneg = yaz_get_charneg_record(*otherInfo)))
2202 yaz_get_response_charneg(m_referenceId_mem, charneg,
2203 &charset, &lang, &selected);
2205 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2206 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2208 if (m_initRequest_options &&
2209 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2211 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2214 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2216 // negotiation-charset, negotiation-lang
2217 // elements of config file in use.
2219 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2222 // clear negotiation option.
2223 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2225 // Delete negotiation (charneg-3) entry.
2226 yaz_del_charneg_record(otherInfo);
2231 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2233 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2236 else if (m_charset_converter->get_client_query_charset())
2238 Z_OtherInformation **otherInfo;
2239 Z_OtherInformationUnit *oi;
2240 get_otherInfoAPDU(apdu, &otherInfo);
2241 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2244 ODR_MASK_SET(initResponse->options,
2245 Z_Options_negotiationModel);
2246 if (m_initRequest_options)
2247 ODR_MASK_SET(m_initRequest_options,
2248 Z_Options_negotiationModel);
2250 oi->which = Z_OtherInfo_externallyDefinedInfo;
2251 oi->information.externallyDefinedInfo =
2252 yaz_set_response_charneg(
2254 m_charset_converter->get_client_query_charset(),
2256 m_charset_converter->get_client_charset_selected());
2263 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2265 const char *addinfo)
2267 Z_Records *rec = (Z_Records *)
2268 odr_malloc (odr, sizeof(*rec));
2270 odr_malloc (odr, sizeof(*err));
2271 Z_DiagRec *drec = (Z_DiagRec *)
2272 odr_malloc (odr, sizeof(*drec));
2273 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2274 odr_malloc (odr, sizeof(*dr));
2276 rec->which = Z_Records_NSD;
2277 rec->u.nonSurrogateDiagnostic = dr;
2278 dr->diagnosticSetId =
2279 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2280 dr->condition = err;
2281 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2282 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2286 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2288 if (apdu->which == Z_APDU_searchRequest &&
2289 apdu->u.searchRequest->query &&
2290 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2291 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2293 Z_RPNQuery *rpnquery = 0;
2294 Z_SearchRequest *sr = apdu->u.searchRequest;
2297 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2298 sr->query->u.type_104->u.cql);
2300 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2301 &rpnquery, odr_encode(),
2304 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2307 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2308 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2310 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2311 new_apdu->u.searchResponse->records =
2312 create_nonSurrogateDiagnostics(odr_encode(),
2313 yaz_diag_srw_to_bib1(r),
2315 *new_apdu->u.searchResponse->searchStatus = 0;
2317 send_to_client(new_apdu);
2323 sr->query->which = Z_Query_type_1;
2324 sr->query->u.type_1 = rpnquery;
2331 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2333 if (apdu->which == Z_APDU_searchRequest &&
2334 apdu->u.searchRequest->query)
2336 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2337 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2340 m_charset_converter->set_client_query_charset("UTF-8");
2341 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2342 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2349 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2351 if (apdu->which == Z_APDU_searchRequest)
2353 Z_SearchRequest *sr = apdu->u.searchRequest;
2357 Yaz_ProxyConfig *cfg = check_reconfigure();
2359 err = cfg->check_query(odr_encode(), m_default_target,
2360 sr->query, &addinfo);
2363 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2365 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2366 new_apdu->u.searchResponse->records =
2367 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2368 *new_apdu->u.searchResponse->searchStatus = 0;
2370 send_to_client(new_apdu);
2378 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2380 if (apdu->which != Z_APDU_initRequest)
2381 return 1; // pass if no init request
2382 Z_InitRequest *req = apdu->u.initRequest;
2384 Yaz_ProxyConfig *cfg = check_reconfigure();
2386 return 1; // pass if no config
2389 if (req->idAuthentication == 0)
2391 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2394 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2396 ret = cfg->client_authentication(
2398 req->idAuthentication->u.idPass->userId,
2399 req->idAuthentication->u.idPass->groupId,
2400 req->idAuthentication->u.idPass->password,
2403 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2405 char user[64], pass[64];
2408 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2409 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2413 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2418 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2420 m_marcxml_mode = none;
2421 if (apdu->which == Z_APDU_searchRequest)
2423 Z_SearchRequest *sr = apdu->u.searchRequest;
2426 Yaz_ProxyConfig *cfg = check_reconfigure();
2428 Z_RecordComposition rc_temp, *rc = 0;
2429 if (sr->smallSetElementSetNames)
2431 rc_temp.which = Z_RecordComp_simple;
2432 rc_temp.u.simple = sr->smallSetElementSetNames;
2436 if (sr->preferredRecordSyntax)
2439 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2440 m_frontend_type = ent->value;
2443 m_frontend_type = VAL_NONE;
2445 char *stylesheet_name = 0;
2447 err = cfg->check_syntax(odr_encode(),
2449 sr->preferredRecordSyntax, rc,
2450 &addinfo, &stylesheet_name, &m_schema,
2451 &m_backend_type, &m_backend_charset,
2452 &m_usemarcon_ini_stage1,
2453 &m_usemarcon_ini_stage2);
2454 if (stylesheet_name)
2456 m_parent->low_socket_close();
2459 if (m_stylesheet_xsp)
2460 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2461 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2464 m_stylesheet_offset = 0;
2465 xfree(stylesheet_name);
2467 m_parent->low_socket_open();
2471 sr->smallSetElementSetNames = 0;
2472 sr->mediumSetElementSetNames = 0;
2473 m_marcxml_mode = marcxml;
2477 sr->preferredRecordSyntax =
2478 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2482 sr->preferredRecordSyntax =
2483 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2488 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2490 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2491 new_apdu->u.searchResponse->records =
2492 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2493 *new_apdu->u.searchResponse->searchStatus = 0;
2495 send_to_client(new_apdu);
2499 else if (m_backend_type)
2501 sr->preferredRecordSyntax =
2502 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2505 else if (apdu->which == Z_APDU_presentRequest)
2507 Z_PresentRequest *pr = apdu->u.presentRequest;
2510 Yaz_ProxyConfig *cfg = check_reconfigure();
2512 if (pr->preferredRecordSyntax)
2515 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2516 m_frontend_type = ent->value;
2519 m_frontend_type = VAL_NONE;
2521 char *stylesheet_name = 0;
2523 err = cfg->check_syntax(odr_encode(), m_default_target,
2524 pr->preferredRecordSyntax,
2525 pr->recordComposition,
2526 &addinfo, &stylesheet_name, &m_schema,
2527 &m_backend_type, &m_backend_charset,
2528 &m_usemarcon_ini_stage1,
2529 &m_usemarcon_ini_stage2
2531 if (stylesheet_name)
2533 m_parent->low_socket_close();
2536 if (m_stylesheet_xsp)
2537 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2538 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2541 m_stylesheet_offset = 0;
2542 xfree(stylesheet_name);
2544 m_parent->low_socket_open();
2548 pr->recordComposition = 0;
2549 m_marcxml_mode = marcxml;
2553 pr->preferredRecordSyntax =
2554 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2558 pr->preferredRecordSyntax =
2559 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2564 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2566 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2567 new_apdu->u.presentResponse->records =
2568 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2569 *new_apdu->u.presentResponse->presentStatus =
2570 Z_PresentStatus_failure;
2572 send_to_client(new_apdu);
2576 else if (m_backend_type)
2578 pr->preferredRecordSyntax =
2579 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2585 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2589 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2590 odr_malloc(o, sizeof(Z_ElementSetNames));
2591 esn->which = Z_ElementSetNames_generic;
2592 esn->u.generic = odr_strdup(o, schema);
2596 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2599 Yaz_ProxyConfig *cfg = check_reconfigure();
2601 t = cfg->get_explain_name(db, backend_db);
2603 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2610 xfree(m_default_target);
2611 m_default_target = xstrdup(t);
2615 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2618 if (strcmp(hreq->method, "GET"))
2620 if (hreq->path[0] != '/')
2622 const char *cp = hreq->path;
2625 if (*cp == '/' && strchr("/.", cp[1]))
2630 Yaz_ProxyConfig *cfg = check_reconfigure();
2632 if (!cfg->get_file_access_info(hreq->path+1))
2635 const char *fname = hreq->path+1;
2636 if (stat(fname, &sbuf))
2638 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2642 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2644 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2647 if (sbuf.st_size > (off_t) 1000000)
2649 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2654 ODR o = odr_encode();
2656 const char *ctype = cfg->check_mime_type(fname);
2657 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2658 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2660 hres->version = odr_strdup(o, m_http_version);
2661 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2662 if (m_http_keepalive)
2663 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2667 hres->content_len = sbuf.st_size;
2668 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2669 FILE *f = fopen(fname, "rb");
2672 fread(hres->content_buf, 1, hres->content_len, f);
2679 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2681 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2685 send_GDU(gdu, &len);
2686 recv_GDU_more(true);
2690 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2694 odr_destroy(m_s2z_odr_init);
2697 if (m_s2z_odr_search)
2699 odr_destroy(m_s2z_odr_search);
2700 m_s2z_odr_search = 0;
2703 m_http_keepalive = 0;
2705 if (!strcmp(hreq->version, "1.0"))
2707 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2708 if (v && !strcmp(v, "Keep-Alive"))
2709 m_http_keepalive = 1;
2711 m_http_keepalive = 0;
2712 m_http_version = "1.0";
2716 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2717 if (v && !strcmp(v, "close"))
2718 m_http_keepalive = 0;
2720 m_http_keepalive = 1;
2721 m_http_version = "1.1";
2724 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2725 char authorization_str[255];
2726 *authorization_str = '\0';
2727 if (a && strncasecmp(a, "Basic ", 6) == 0)
2728 base64_decode(a + 6, authorization_str, 254);
2730 Z_SRW_PDU *srw_pdu = 0;
2731 Z_SOAP *soap_package = 0;
2733 Z_SRW_diagnostic *diagnostic = 0;
2734 int num_diagnostic = 0;
2736 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2738 if (file_access(hreq))
2742 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2744 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2745 &charset, &diagnostic, &num_diagnostic) == 0)
2747 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2748 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2749 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2750 m_s2z_init_apdu = 0;
2751 m_s2z_search_apdu = 0;
2752 m_s2z_present_apdu = 0;
2754 m_s2z_stylesheet = 0;
2756 Z_IdAuthentication *auth = NULL;
2757 if (*authorization_str)
2759 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2760 auth->which = Z_IdAuthentication_idPass;
2761 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2762 auth->u.idPass->groupId = NULL;
2763 char *p = strchr(authorization_str, ':');
2768 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2770 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2773 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2776 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2778 const char *backend_db = srw_req->database;
2779 srw_get_client(srw_req->database, &backend_db);
2781 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2782 // recordXPath unsupported.
2783 if (srw_req->recordXPath)
2785 yaz_add_srw_diagnostic(odr_decode(),
2786 &diagnostic, &num_diagnostic,
2790 if (srw_req->sort_type != Z_SRW_sort_type_none)
2792 yaz_add_srw_diagnostic(odr_decode(),
2793 &diagnostic, &num_diagnostic,
2797 if (srw_req->stylesheet)
2799 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2801 // set packing for response records ..
2802 if (srw_req->recordPacking &&
2803 !strcmp(srw_req->recordPacking, "xml"))
2804 m_s2z_packing = Z_SRW_recordPacking_XML;
2806 m_s2z_packing = Z_SRW_recordPacking_string;
2810 Z_SRW_PDU *srw_pdu =
2811 yaz_srw_get(odr_encode(),
2812 Z_SRW_searchRetrieve_response);
2813 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2815 srw_res->diagnostics = diagnostic;
2816 srw_res->num_diagnostics = num_diagnostic;
2817 send_srw_response(srw_pdu);
2821 // prepare search PDU
2822 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2823 Z_APDU_searchRequest);
2824 Z_SearchRequest *z_searchRequest =
2825 m_s2z_search_apdu->u.searchRequest;
2827 z_searchRequest->num_databaseNames = 1;
2828 z_searchRequest->databaseNames = (char**)
2829 odr_malloc(m_s2z_odr_search, sizeof(char *));
2830 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2833 // query transformation
2834 Z_Query *query = (Z_Query *)
2835 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2836 z_searchRequest->query = query;
2838 if (srw_req->query_type == Z_SRW_query_type_cql)
2840 Z_External *ext = (Z_External *)
2841 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2842 ext->direct_reference =
2843 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2844 ext->indirect_reference = 0;
2845 ext->descriptor = 0;
2846 ext->which = Z_External_CQL;
2847 ext->u.cql = srw_req->query.cql;
2849 query->which = Z_Query_type_104;
2850 query->u.type_104 = ext;
2852 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2854 Z_RPNQuery *RPNquery;
2855 YAZ_PQF_Parser pqf_parser;
2857 pqf_parser = yaz_pqf_create ();
2859 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2860 srw_req->query.pqf);
2863 const char *pqf_msg;
2865 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2867 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2868 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2870 send_to_srw_client_error(10, 0);
2873 query->which = Z_Query_type_1;
2874 query->u.type_1 = RPNquery;
2876 yaz_pqf_destroy (pqf_parser);
2880 send_to_srw_client_error(7, "query");
2885 m_s2z_present_apdu = 0;
2887 if (srw_req->maximumRecords)
2888 max = *srw_req->maximumRecords;
2890 if (srw_req->startRecord)
2891 start = *srw_req->startRecord;
2894 // Some backend, such as Voyager doesn't honor piggyback
2895 // So we use present always (0 &&).
2896 if (0 && start <= 1) // Z39.50 piggyback
2898 *z_searchRequest->smallSetUpperBound = max;
2899 *z_searchRequest->mediumSetPresentNumber = max;
2900 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2902 z_searchRequest->preferredRecordSyntax =
2903 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2905 if (srw_req->recordSchema)
2907 z_searchRequest->smallSetElementSetNames =
2908 z_searchRequest->mediumSetElementSetNames =
2909 mk_esn_from_schema(m_s2z_odr_search,
2910 srw_req->recordSchema);
2913 else // Z39.50 present
2915 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2916 Z_APDU_presentRequest);
2917 Z_PresentRequest *z_presentRequest =
2918 m_s2z_present_apdu->u.presentRequest;
2919 *z_presentRequest->resultSetStartPoint = start;
2920 *z_presentRequest->numberOfRecordsRequested = max;
2921 z_presentRequest->preferredRecordSyntax =
2922 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2924 if (srw_req->recordSchema)
2926 z_presentRequest->recordComposition =
2927 (Z_RecordComposition *)
2928 odr_malloc(m_s2z_odr_search,
2929 sizeof(Z_RecordComposition));
2930 z_presentRequest->recordComposition->which =
2931 Z_RecordComp_simple;
2932 z_presentRequest->recordComposition->u.simple =
2933 mk_esn_from_schema(m_s2z_odr_search,
2934 srw_req->recordSchema);
2940 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2941 Z_APDU_initRequest);
2943 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2945 // prevent m_initRequest_apdu memory from being grabbed
2946 // in Yaz_Proxy::handle_incoming_Z_PDU
2947 m_initRequest_apdu = m_s2z_init_apdu;
2948 handle_incoming_Z_PDU(m_s2z_init_apdu);
2953 handle_incoming_Z_PDU(m_s2z_search_apdu);
2957 else if (srw_pdu->which == Z_SRW_explain_request)
2959 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2961 const char *backend_db = srw_req->database;
2962 srw_get_client(srw_req->database, &backend_db);
2964 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2967 if (srw_req->stylesheet)
2969 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2971 if (srw_req->recordPacking &&
2972 !strcmp(srw_req->recordPacking, "xml"))
2973 m_s2z_packing = Z_SRW_recordPacking_XML;
2975 m_s2z_packing = Z_SRW_recordPacking_string;
2979 send_srw_explain_response(diagnostic, num_diagnostic);
2985 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2986 Z_APDU_initRequest);
2988 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2990 // prevent m_initRequest_apdu memory from being grabbed
2991 // in Yaz_Proxy::handle_incoming_Z_PDU
2992 m_initRequest_apdu = m_s2z_init_apdu;
2993 handle_incoming_Z_PDU(m_s2z_init_apdu);
2996 send_srw_explain_response(0, 0);
2999 else if (srw_pdu->which == Z_SRW_scan_request)
3001 m_s2z_database = odr_strdup(m_s2z_odr_init,
3002 srw_pdu->u.scan_request->database);
3004 yaz_add_srw_diagnostic(odr_decode(),
3005 &diagnostic, &num_diagnostic,
3007 Z_SRW_PDU *srw_pdu =
3008 yaz_srw_get(odr_encode(),
3009 Z_SRW_scan_response);
3010 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3012 srw_res->diagnostics = diagnostic;
3013 srw_res->num_diagnostics = num_diagnostic;
3014 send_srw_response(srw_pdu);
3021 send_to_srw_client_error(4, 0);
3024 send_http_response(400);
3027 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3030 Z_OtherInformation **oi;
3031 get_otherInfoAPDU(apdu, &oi);
3033 if (apdu->u.initRequest->implementationId)
3034 yaz_log(YLOG_LOG, "%simplementationId: %s",
3035 m_session_str, apdu->u.initRequest->implementationId);
3036 if (apdu->u.initRequest->implementationName)
3037 yaz_log(YLOG_LOG, "%simplementationName: %s",
3038 m_session_str, apdu->u.initRequest->implementationName);
3039 if (apdu->u.initRequest->implementationVersion)
3040 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3041 m_session_str, apdu->u.initRequest->implementationVersion);
3042 if (m_initRequest_apdu == 0)
3044 if (m_initRequest_mem)
3045 nmem_destroy(m_initRequest_mem);
3047 m_initRequest_apdu = apdu;
3048 m_initRequest_mem = odr_extract_mem(odr_decode());
3050 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3051 preferredMessageSize;
3052 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3053 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3055 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3057 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3058 yaz_get_charneg_record(*oi);
3060 // Save proposal charsets and langs.
3061 if (ODR_MASK_GET(apdu->u.initRequest->options,
3062 Z_Options_negotiationModel)
3063 && charSetandLangRecord)
3066 yaz_get_proposal_charneg(m_referenceId_mem,
3067 charSetandLangRecord,
3068 &m_initRequest_oi_negotiation_charsets,
3069 &m_initRequest_oi_negotiation_num_charsets,
3070 &m_initRequest_oi_negotiation_langs,
3071 &m_initRequest_oi_negotiation_num_langs,
3072 &m_initRequest_oi_negotiation_selected);
3074 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3076 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3077 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3078 m_initRequest_oi_negotiation_charsets[i]:"none");
3080 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3082 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3083 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3084 m_initRequest_oi_negotiation_langs[i]:"none");
3086 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3087 m_session_str, m_initRequest_oi_negotiation_selected);
3089 // save init options for the response..
3090 m_initRequest_options = apdu->u.initRequest->options;
3092 apdu->u.initRequest->options =
3093 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3094 sizeof(Odr_bitmask));
3095 ODR_MASK_ZERO(apdu->u.initRequest->options);
3097 for (i = 0; i<= 24; i++)
3098 ODR_MASK_SET(apdu->u.initRequest->options, i);
3099 // check negotiation option
3100 if (!ODR_MASK_GET(m_initRequest_options,
3101 Z_Options_negotiationModel))
3103 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3104 Z_Options_negotiationModel);
3106 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3107 Z_Options_concurrentOperations);
3109 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3110 apdu->u.initRequest->protocolVersion =
3111 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3112 sizeof(Odr_bitmask));
3113 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3115 for (i = 0; i<= 8; i++)
3116 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3118 handle_charset_lang_negotiation(apdu);
3119 if (m_client->m_init_flag)
3121 if (handle_init_response_for_invalid_session(apdu))
3123 if (m_client->m_initResponse)
3125 Z_APDU *apdu2 = m_client->m_initResponse;
3126 apdu2->u.initResponse->otherInfo = 0;
3127 if (m_client->m_cookie && *m_client->m_cookie)
3128 set_otherInformationString(apdu2, VAL_COOKIE, 1,
3129 m_client->m_cookie);
3130 apdu2->u.initResponse->referenceId =
3131 apdu->u.initRequest->referenceId;
3132 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3133 apdu2->u.initResponse->protocolVersion =
3134 m_client->m_initResponse_version;
3136 handle_charset_lang_negotiation(apdu2);
3138 if (m_timeout_mode == timeout_busy)
3139 m_timeout_mode = timeout_normal;
3140 send_to_client(apdu2);
3144 m_client->m_init_flag = 1;
3147 Auth_Msg *m = new Auth_Msg;
3149 z_APDU(odr_encode(), &apdu, 0, "encode");
3150 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3151 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3152 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3153 odr_reset(odr_encode());
3156 m_my_thread->put(m);
3158 int ret = handle_authentication(apdu);
3159 result_authentication(apdu, ret);
3163 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3165 Z_ReferenceId **refid = get_referenceIdP(apdu);
3166 nmem_reset(m_referenceId_mem);
3167 if (refid && *refid)
3169 m_referenceId = (Z_ReferenceId *)
3170 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3171 m_referenceId->len = m_referenceId->size = (*refid)->len;
3172 m_referenceId->buf = (unsigned char *)
3173 nmem_malloc(m_referenceId_mem, (*refid)->len);
3174 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3179 if (!m_client && m_flag_invalid_session)
3181 // Got request for a session that is invalid..
3182 m_apdu_invalid_session = apdu; // save package
3183 m_mem_invalid_session = odr_extract_mem(odr_decode());
3184 apdu = m_initRequest_apdu; // but throw an init to the target
3187 if (apdu->which == Z_APDU_searchRequest)
3188 m_search_stat.add_bytes(1);
3190 // Determine our client.
3191 Z_OtherInformation **oi;
3192 get_otherInfoAPDU(apdu, &oi);
3193 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3197 { // HTTP. Send not found
3198 send_http_response(404);
3203 // Z39.50 just shutdown
3209 m_client->m_server = this;
3211 if (apdu->which == Z_APDU_initRequest)
3214 handle_incoming_Z_PDU_2(apdu);
3217 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3219 handle_max_record_retrieve(apdu);
3222 apdu = handle_syntax_validation(apdu);
3225 apdu = handle_query_transformation(apdu);
3228 apdu = handle_target_charset_conversion(apdu);
3231 apdu = handle_query_validation(apdu);
3234 apdu = result_set_optimize(apdu);
3238 m_client->timeout(m_target_idletime); // mark it active even
3239 recv_GDU_more(true);
3240 // though we didn't use it
3244 // delete other info construct completely if 0 elements
3245 Z_OtherInformation **oi;
3246 get_otherInfoAPDU(apdu, &oi);
3247 if (oi && *oi && (*oi)->num_elements == 0)
3250 if (apdu->which == Z_APDU_presentRequest &&
3251 m_client->m_resultSetStartPoint == 0)
3253 Z_PresentRequest *pr = apdu->u.presentRequest;
3254 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3255 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3257 m_client->m_resultSetStartPoint = 0;
3259 if (m_client->send_to_target(apdu) < 0)
3261 m_client->shutdown();
3264 m_client->m_waiting = 1;
3267 void Yaz_Proxy::connectNotify()
3271 void Yaz_Proxy::releaseClient()
3273 xfree(m_proxyTarget);
3275 m_flag_invalid_session = 0;
3276 // only keep if keep_alive flag is set...
3278 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3279 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3280 m_client->m_waiting == 0)
3282 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3284 m_client->get_hostname());
3285 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3286 m_session_str, m_client->m_pdu_recv,
3287 m_client->m_bytes_sent + m_client->m_bytes_recv,
3288 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3289 assert (m_client->m_waiting != 2);
3290 // Tell client (if any) that no server connection is there..
3291 m_client->m_server = 0;
3296 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3298 m_client->get_hostname());
3299 assert (m_client->m_waiting != 2);
3305 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3311 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3315 m_parent->pre_init();
3318 bool Yaz_Proxy::dec_ref()
3320 m_http_keepalive = 0;
3323 if (m_ref_count > 0)
3332 const char *Yaz_ProxyClient::get_session_str()
3336 return m_server->get_session_str();
3339 void Yaz_ProxyClient::shutdown()
3341 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3346 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3347 m_server->dec_ref();
3353 void Yaz_Proxy::failNotify()
3356 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3360 void Yaz_Proxy::send_response_fail_client(const char *addr)
3364 Z_SRW_diagnostic *diagnostic = 0;
3365 int num_diagnostic = 0;
3367 yaz_add_srw_diagnostic(odr_encode(),
3368 &diagnostic, &num_diagnostic,
3369 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3370 if (m_s2z_search_apdu)
3371 send_srw_search_response(diagnostic, num_diagnostic);
3373 send_srw_explain_response(diagnostic, num_diagnostic);
3376 void Yaz_ProxyClient::failNotify()
3379 m_server->inc_request_no();
3380 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3381 get_session_str(), get_hostname());
3384 m_server->send_response_fail_client(get_hostname());
3388 void Yaz_ProxyClient::connectNotify()
3390 const char *s = get_session_str();
3391 const char *h = get_hostname();
3392 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3394 timeout(m_target_idletime);
3399 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3400 *the_PDU_Observable, int fd)
3402 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3405 Yaz_ProxyClient::~Yaz_ProxyClient()
3410 m_next->m_prev = m_prev;
3411 m_waiting = 2; // for debugging purposes only.
3412 odr_destroy(m_init_odr);
3413 odr_destroy(m_idAuthentication_odr);
3414 delete m_last_query;
3415 xfree (m_last_resultSetId);
3419 void Yaz_ProxyClient::pre_init_client()
3421 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3422 Z_InitRequest *req = apdu->u.initRequest;
3425 for (i = 0; i<= 24; i++)
3426 ODR_MASK_SET(req->options, i);
3427 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3428 Z_Options_negotiationModel);
3429 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3430 Z_Options_concurrentOperations);
3431 for (i = 0; i<= 10; i++)
3432 ODR_MASK_SET(req->protocolVersion, i);
3434 if (send_to_target(apdu) < 0)
3445 void Yaz_Proxy::pre_init()
3448 const char *name = 0;
3449 const char *zurl_in_use[MAX_ZURL_PLEX];
3450 int limit_bw, limit_pdu, limit_req, limit_search;
3451 int target_idletime, client_idletime;
3453 int keepalive_limit_bw, keepalive_limit_pdu;
3455 const char *cql2rpn = 0;
3456 const char *authentication = 0;
3457 const char *negotiation_charset = 0;
3458 const char *negotiation_lang = 0;
3460 Yaz_ProxyConfig *cfg = check_reconfigure();
3464 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3469 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3470 &limit_bw, &limit_pdu, &limit_req,
3472 &target_idletime, &client_idletime,
3474 &keepalive_limit_bw,
3475 &keepalive_limit_pdu,
3479 &negotiation_charset,
3487 for (j = 0; zurl_in_use[j]; j++)
3491 int spare_waiting = 0;
3494 for (c = m_clientPool; c; c = c->m_next)
3496 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3498 if (c->m_cookie == 0)
3500 if (c->m_server == 0)
3512 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3513 "sparew=%d preinit=%d",m_session_str,
3514 name, zurl_in_use[j], in_use, other,
3515 spare, spare_waiting, pre_init);
3516 if (spare + spare_waiting < pre_init)
3518 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3519 c->m_next = m_clientPool;
3521 c->m_next->m_prev = &c->m_next;
3523 c->m_prev = &m_clientPool;
3525 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3526 c->set_APDU_yazlog(1);
3528 c->set_APDU_yazlog(0);
3530 if (c->client(zurl_in_use[j]))
3538 c->m_target_idletime = target_idletime;
3539 c->m_seqno = m_seqno++;
3546 void Yaz_Proxy::timeoutNotify()
3551 switch(m_timeout_mode)
3553 case timeout_normal:
3557 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3560 case timeout_reduce:
3561 timeout(m_client_idletime);
3562 m_timeout_mode = timeout_busy;
3563 gdu = m_timeout_gdu;
3565 recv_GDU_normal(gdu);
3568 assert(m_stylesheet_nprl);
3569 convert_xsl_delay();
3570 recv_GDU_more(true);
3580 void Yaz_Proxy::markInvalid()
3583 m_flag_invalid_session = 1;
3586 void Yaz_ProxyClient::timeoutNotify()
3589 m_server->inc_request_no();
3591 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3595 m_server->send_response_fail_client(get_hostname());
3597 Yaz_Proxy *proxy_root = m_root;
3601 proxy_root->pre_init();
3604 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3605 Yaz_Proxy *parent) :
3606 Z_Assoc (the_PDU_Observable)
3613 m_last_resultSetId = 0;
3614 m_last_resultCount = 0;
3618 m_init_odr = odr_createmem (ODR_DECODE);
3620 m_initResponse_options = 0;
3621 m_initResponse_version = 0;
3622 m_initResponse_preferredMessageSize = 0;
3623 m_initResponse_maximumRecordSize = 0;
3624 m_resultSetStartPoint = 0;
3625 m_bytes_sent = m_bytes_recv = 0;
3629 m_target_idletime = 600;
3631 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3632 m_idAuthentication_ber_buf = 0;
3633 m_idAuthentication_ber_size = 0;
3636 const char *Yaz_Proxy::option(const char *name, const char *value)
3638 if (!strcmp (name, "optimize")) {
3641 m_optimize = xstrdup (value);
3648 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3653 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3655 if (apdu->which == Z_GDU_Z3950)
3656 recv_Z_PDU(apdu->u.z3950, len);
3657 else if (apdu->which == Z_GDU_HTTP_Response)
3658 recv_HTTP_response(apdu->u.HTTP_Response, len);
3663 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3665 if (!m_flag_invalid_session)
3667 m_flag_invalid_session = 0;
3668 handle_incoming_Z_PDU(m_apdu_invalid_session);
3669 assert (m_mem_invalid_session);
3670 nmem_destroy(m_mem_invalid_session);
3671 m_mem_invalid_session = 0;
3675 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3677 m_bytes_recv += len;
3681 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3682 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3683 apdu_name(apdu), get_hostname(), len);
3684 if (apdu->which == Z_APDU_initResponse)
3686 if (!m_server) // if this is a pre init session , check for more
3688 NMEM nmem = odr_extract_mem (odr_decode());
3689 odr_reset (m_init_odr);
3690 nmem_transfer (m_init_odr->mem, nmem);
3691 m_initResponse = apdu;
3692 m_initResponse_options = apdu->u.initResponse->options;
3693 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3694 m_initResponse_preferredMessageSize =
3695 *apdu->u.initResponse->preferredMessageSize;
3696 m_initResponse_maximumRecordSize =
3697 *apdu->u.initResponse->maximumRecordSize;
3699 Z_InitResponse *ir = apdu->u.initResponse;
3701 // apply YAZ Proxy version
3702 char *imv0 = ir->implementationVersion;
3703 char *imv1 = (char*)
3704 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3709 strcat(imv1, "/" VERSION);
3711 ir->implementationVersion = imv1;
3713 // apply YAZ Proxy implementation name
3714 char *im0 = ir->implementationName;
3716 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3723 strcat(im1, "(YAZ Proxy)");
3724 ir->implementationName = im1;
3726 nmem_destroy (nmem);
3728 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3731 if (apdu->which == Z_APDU_searchResponse)
3733 Z_SearchResponse *sr = apdu->u.searchResponse;
3734 m_last_resultCount = *sr->resultCount;
3735 int status = *sr->searchStatus;
3736 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3740 if (sr->records && sr->records->which == Z_Records_DBOSD)
3742 m_cache.add(odr_decode(),
3743 sr->records->u.databaseOrSurDiagnostics, 1,
3748 if (apdu->which == Z_APDU_presentResponse)
3750 Z_PresentResponse *pr = apdu->u.presentResponse;
3754 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3755 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3756 sr->referenceId = pr->referenceId;
3757 *sr->resultCount = m_last_resultCount;
3758 sr->records = pr->records;
3759 sr->nextResultSetPosition = pr->nextResultSetPosition;
3760 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3764 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3766 m_cache.add(odr_decode(),
3767 pr->records->u.databaseOrSurDiagnostics,
3768 m_resultSetStartPoint, -1);
3769 m_resultSetStartPoint = 0;
3773 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3775 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3778 server->send_to_client(apdu);
3779 if (apdu->which == Z_APDU_close)
3782 server->recv_GDU_more(true);
3785 void Yaz_Proxy::low_socket_close()
3790 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3791 if (m_lo_fd[i] >= 0)
3792 ::close(m_lo_fd[i]);
3796 void Yaz_Proxy::low_socket_open()
3801 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3802 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3806 int Yaz_Proxy::server(const char *addr)
3808 int r = Z_Assoc::server(addr);
3811 yaz_log(YLOG_LOG, "%sStarted proxy "
3815 " on %s", m_session_str, addr);
3821 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3823 const char *base64_chars =
3824 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3825 int len = strlen(base64);
3829 for (int pos = 0; pos <= len; pos++)
3831 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3834 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3837 char ch = (char) (ch_ptr - base64_chars);
3841 buf[buf_pos] = ch << 2;
3844 buf[buf_pos++] += (ch & 0x30) >> 4;
3845 buf[buf_pos] = (ch & 0x0f) << 4;
3848 buf[buf_pos++] += (ch & 0x3c) >> 2;
3849 buf[buf_pos] = (ch & 0x03) << 6;
3852 buf[buf_pos++] += ch;
3859 buf[buf_pos] = '\0';
3865 * indent-tabs-mode: nil
3867 * vim: shiftwidth=4 tabstop=8 expandtab