1 /* $Id: yaz-proxy.cpp,v 1.66 2006-05-01 09:15:52 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;
455 new_proxy->m_session_no = m_session_no;
458 // in case we want to watch a particular client..
459 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
460 new_proxy->m_log_mask = 255;
463 new_proxy->set_APDU_log(get_APDU_log());
464 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
465 new_proxy->set_APDU_yazlog(1);
467 new_proxy->set_APDU_yazlog(0);
468 strcpy(new_proxy->m_session_str, session_str);
469 new_proxy->m_peername = xstrdup(peername);
470 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
471 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
472 // create thread object the first time we get an incoming connection
474 m_my_thread = new Msg_Thread(m_socket_observable, 1);
475 new_proxy->m_my_thread = m_my_thread;
479 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
482 Z_OtherInformationUnit *oi;
484 ent.proto = PROTO_Z3950;
485 ent.oclass = CLASS_USERINFO;
486 ent.value = (oid_value) VAL_COOKIE;
487 assert (oid_ent_to_oid (&ent, oid));
489 if (oid_ent_to_oid (&ent, oid) &&
490 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
491 oi->which == Z_OtherInfo_characterInfo)
492 return oi->information.characterInfo;
495 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
498 Z_OtherInformationUnit *oi;
500 ent.proto = PROTO_Z3950;
501 ent.oclass = CLASS_USERINFO;
502 ent.value = (oid_value) VAL_PROXY;
503 if (oid_ent_to_oid (&ent, oid) &&
504 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
505 oi->which == Z_OtherInfo_characterInfo)
506 return oi->information.characterInfo;
509 const char *Yaz_Proxy::load_balance(const char **url)
511 int zurl_in_use[MAX_ZURL_PLEX];
512 int zurl_in_spare[MAX_ZURL_PLEX];
516 for (i = 0; i<MAX_ZURL_PLEX; i++)
519 zurl_in_spare[i] = 0;
521 for (c = m_parent->m_clientPool; c; c = c->m_next)
523 for (i = 0; url[i]; i++)
524 if (!strcmp(url[i], c->get_hostname()))
527 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
531 int min_use = 100000;
532 int spare_for_min = 0;
534 const char *ret_min = 0;
535 const char *ret_spare = 0;
536 for (i = 0; url[i]; i++)
538 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
539 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
540 if (min_use > zurl_in_use[i])
543 min_use = zurl_in_use[i];
544 spare_for_min = zurl_in_spare[i];
546 if (max_spare < zurl_in_spare[i])
549 max_spare = zurl_in_spare[i];
555 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
556 const char *proxy_host)
559 Yaz_Proxy *parent = m_parent;
560 Yaz_ProxyClient *c = m_client;
564 const char *url[MAX_ZURL_PLEX];
565 Yaz_ProxyConfig *cfg = check_reconfigure();
568 if (parent && parent->m_debug_mode)
570 // only to be enabled for debugging...
571 if (!strcmp(proxy_host, "stop"))
574 xfree(m_default_target);
575 m_default_target = xstrdup(proxy_host);
577 proxy_host = m_default_target;
578 int client_idletime = -1;
579 const char *cql2rpn_fname = 0;
580 const char *negotiation_charset = 0;
581 const char *negotiation_lang = 0;
582 const char *query_charset = 0;
583 const char *default_client_query_charset = 0;
584 url[0] = m_default_target;
589 cfg->get_target_info(proxy_host, url, &m_bw_max,
590 &m_pdu_max, &m_max_record_retrieve,
592 &m_target_idletime, &client_idletime,
593 &parent->m_max_clients,
594 &m_keepalive_limit_bw,
595 &m_keepalive_limit_pdu,
598 &negotiation_charset,
601 &default_client_query_charset);
603 if (client_idletime != -1)
605 m_client_idletime = client_idletime;
606 timeout(m_client_idletime);
609 // get those FILE descriptors available
610 m_parent->low_socket_close();
612 m_cql2rpn.set_pqf_file(cql2rpn_fname);
613 // reserve them again
614 m_parent->low_socket_open();
616 if (negotiation_charset || negotiation_lang || default_client_query_charset)
618 set_proxy_negotiation(negotiation_charset,
619 negotiation_lang, default_client_query_charset);
621 m_charset_converter->set_target_query_charset(query_charset);
624 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
627 // we don't handle multiplexing for cookie session, so we just
628 // pick the first one in this case (anonymous users will be able
629 // to use any backend)
630 if (cookie && *cookie)
631 m_proxyTarget = (char*) xstrdup(url[0]);
633 m_proxyTarget = (char*) xstrdup(load_balance(url));
635 if (cookie && *cookie)
636 { // search in sessions with a cookie
637 for (c = parent->m_clientPool; c; c = c->m_next)
640 assert (*c->m_prev == c);
641 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
642 !strcmp(m_proxyTarget, c->get_hostname()))
645 // The following handles "cancel"
646 // If connection is busy (waiting for PDU) and
647 // we have an initRequest we can safely do re-open
648 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
650 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
657 c->m_last_resultCount = 0;
658 c->m_sr_transform = 0;
660 c->m_resultSetStartPoint = 0;
661 c->m_target_idletime = m_target_idletime;
662 if (c->client(m_proxyTarget))
669 c->m_seqno = parent->m_seqno;
670 if (c->m_server && c->m_server != this)
671 c->m_server->m_client = 0;
674 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
679 else if (!c && apdu->which == Z_APDU_initRequest )
681 // anonymous sessions without cookie.
682 // if authentication is set it is NOT anonymous se we can't share them.
683 // If charset and lang negotiation is use it is NOT anonymous session too.
684 for (c = parent->m_clientPool; c; c = c->m_next)
687 assert(*c->m_prev == c);
688 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
689 && c->compare_idAuthentication(apdu)
690 && c->compare_charset(apdu)
691 && !strcmp(m_proxyTarget, c->get_hostname()))
694 yaz_log (YLOG_LOG, "%sREUSE %d %s",
695 m_session_str, parent->m_seqno, c->get_hostname());
697 c->m_seqno = parent->m_seqno;
698 assert(c->m_server == 0);
701 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
702 c->set_APDU_yazlog(1);
704 c->set_APDU_yazlog(0);
716 if (apdu->which != Z_APDU_initRequest)
718 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
721 // go through list of clients - and find the lowest/oldest one.
722 Yaz_ProxyClient *c_min = 0;
724 int no_of_clients = 0;
725 if (parent->m_clientPool)
726 yaz_log (YLOG_DEBUG, "Existing sessions");
727 for (c = parent->m_clientPool; c; c = c->m_next)
729 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
730 c->m_waiting, c->get_hostname(),
731 c->m_cookie ? c->m_cookie : "");
733 if (min_seq < 0 || c->m_seqno < min_seq)
735 min_seq = c->m_seqno;
739 if (no_of_clients >= parent->m_max_clients)
742 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
744 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
745 m_session_str, parent->m_max_clients, c->m_seqno);
746 if (c->m_server && c->m_server != this)
747 c->m_server->dec_ref();
751 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
752 m_session_str, parent->m_max_clients,
753 c->m_seqno, parent->m_seqno, c->get_hostname());
757 c->m_cookie = xstrdup(cookie);
758 c->m_seqno = parent->m_seqno;
759 if (c->m_server && c->m_server != this)
761 c->m_server->m_client = 0;
762 c->m_server->dec_ref();
765 c->m_target_idletime = m_target_idletime;
766 c->timeout(m_target_idletime);
768 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
769 c->set_APDU_yazlog(1);
771 c->set_APDU_yazlog(0);
778 yaz_log (YLOG_LOG, "%sNEW %d %s",
779 m_session_str, parent->m_seqno, m_proxyTarget);
780 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
781 c->m_next = parent->m_clientPool;
783 c->m_next->m_prev = &c->m_next;
784 parent->m_clientPool = c;
785 c->m_prev = &parent->m_clientPool;
791 c->m_cookie = xstrdup(cookie);
793 c->m_seqno = parent->m_seqno;
795 c->m_last_resultCount = 0;
798 c->m_sr_transform = 0;
800 c->m_resultSetStartPoint = 0;
802 if (c->client(m_proxyTarget))
807 c->m_target_idletime = m_target_idletime;
810 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
811 c->set_APDU_yazlog(1);
813 c->set_APDU_yazlog(0);
815 c->set_idAuthentication(apdu);
817 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
821 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
824 for (i = 0; i<num; i++)
827 Z_DefaultDiagFormat *r;
828 Z_DiagRec *p = pp[i];
829 if (p->which != Z_DiagRec_defaultFormat)
831 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
835 r = p->u.defaultFormat;
836 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
837 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
838 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
841 case Z_DefaultDiagFormat_v2Addinfo:
842 yaz_log(YLOG_LOG, "%sError %d %s:%s",
844 *r->condition, diagbib1_str(*r->condition),
847 case Z_DefaultDiagFormat_v3Addinfo:
848 yaz_log(YLOG_LOG, "%sError %d %s:%s",
850 *r->condition, diagbib1_str(*r->condition),
857 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
859 if (!m_stylesheet_xsp || p->num_records <= 0)
861 return 0; /* no XSLT to be done ... */
864 m_stylesheet_offset = 0;
865 m_stylesheet_nprl = p;
866 m_stylesheet_apdu = apdu;
867 m_timeout_mode = timeout_xsl;
873 void Yaz_Proxy::convert_xsl_delay()
876 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
877 if (npr->which == Z_NamePlusRecord_databaseRecord)
879 Z_External *r = npr->u.databaseRecord;
880 if (r->which == Z_External_octet)
883 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
885 xmlDocPtr res, doc = xmlParseMemory(
886 (char*) r->u.octet_aligned->buf,
887 r->u.octet_aligned->len);
890 yaz_log(YLOG_LOG, "%sXSLT convert %d",
891 m_session_str, m_stylesheet_offset);
892 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
899 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
901 m_stylesheet_nprl->records[m_stylesheet_offset]->
903 z_ext_record(odr_encode(), VAL_TEXT_XML,
904 (char*) out_buf, out_len);
913 m_stylesheet_offset++;
914 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
916 m_timeout_mode = timeout_normal;
917 m_stylesheet_nprl = 0;
919 if (m_stylesheet_xsp)
920 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
922 m_stylesheet_xsp = 0;
923 timeout(m_client_idletime);
924 send_PDU_convert(m_stylesheet_apdu);
930 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
932 if (m_frontend_type != VAL_NONE)
935 for (i = 0; i < p->num_records; i++)
937 Z_NamePlusRecord *npr = p->records[i];
938 if (npr->which == Z_NamePlusRecord_databaseRecord)
940 Z_External *r = npr->u.databaseRecord;
941 if (r->which == Z_External_octet)
944 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
946 if (!m_usemarcon->m_stage1)
948 m_usemarcon->m_stage1 = new CDetails();
950 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
951 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
952 int res = m_usemarcon->m_stage1->Start();
957 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
958 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
960 if (!m_usemarcon->m_stage2)
962 m_usemarcon->m_stage2 = new CDetails();
964 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
965 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
966 res = m_usemarcon->m_stage2->Start();
970 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
974 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
977 npr->u.databaseRecord =
978 z_ext_record(odr_encode(),
986 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
992 npr->u.databaseRecord =
993 z_ext_record(odr_encode(),
995 (char*) r->u.octet_aligned->buf,
996 r->u.octet_aligned->len);
1003 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1004 const char *backend_charset)
1006 int sel = m_charset_converter->get_client_charset_selected();
1007 const char *client_record_charset =
1008 m_charset_converter->get_client_query_charset();
1009 if (sel && backend_charset && client_record_charset &&
1010 strcmp(backend_charset, client_record_charset))
1013 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1015 yaz_marc_t mt = yaz_marc_create();
1016 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1017 yaz_marc_iconv(mt, cd);
1018 for (i = 0; i < p->num_records; i++)
1020 Z_NamePlusRecord *npr = p->records[i];
1021 if (npr->which == Z_NamePlusRecord_databaseRecord)
1023 Z_External *r = npr->u.databaseRecord;
1024 oident *ent = oid_getentbyoid(r->direct_reference);
1025 if (!ent || ent->value == VAL_NONE)
1028 if (ent->value == VAL_SUTRS)
1030 WRBUF w = wrbuf_alloc();
1032 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1033 r->u.octet_aligned->len);
1034 npr->u.databaseRecord =
1035 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1039 else if (ent->value == VAL_TEXT_XML)
1043 else if (r->which == Z_External_octet)
1047 if (yaz_marc_decode_buf(mt,
1048 (char*) r->u.octet_aligned->buf,
1049 r->u.octet_aligned->len,
1052 npr->u.databaseRecord =
1053 z_ext_record(odr_encode(), ent->value, result, rlen);
1054 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1061 yaz_iconv_close(cd);
1062 yaz_marc_destroy(mt);
1066 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1067 const char *backend_charset)
1070 if (!backend_charset)
1071 backend_charset = "MARC-8";
1072 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1073 yaz_marc_t mt = yaz_marc_create();
1074 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1075 yaz_marc_iconv(mt, cd);
1076 for (i = 0; i < p->num_records; i++)
1078 Z_NamePlusRecord *npr = p->records[i];
1079 if (npr->which == Z_NamePlusRecord_databaseRecord)
1081 Z_External *r = npr->u.databaseRecord;
1082 if (r->which == Z_External_OPAC)
1084 WRBUF w = wrbuf_alloc();
1086 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1087 npr->u.databaseRecord = z_ext_record(
1088 odr_encode(), VAL_TEXT_XML,
1089 wrbuf_buf(w), wrbuf_len(w)
1093 else if (r->which == Z_External_octet)
1097 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1098 r->u.octet_aligned->len,
1101 npr->u.databaseRecord =
1102 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1108 yaz_iconv_close(cd);
1109 yaz_marc_destroy(mt);
1112 void Yaz_Proxy::logtime()
1114 #if HAVE_GETTIMEOFDAY
1115 struct timeval *tv = (struct timeval*) m_time_tv;
1119 gettimeofday(&tv1, 0);
1120 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1121 (tv1.tv_usec - tv->tv_usec);
1123 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1124 diff/1000000, (diff/1000)%1000);
1131 int Yaz_Proxy::send_http_response(int code)
1133 ODR o = odr_encode();
1134 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1135 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1137 hres->version = odr_strdup(o, m_http_version);
1138 if (m_http_keepalive)
1139 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1143 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1145 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1149 int r = send_GDU(gdu, &len);
1150 m_bytes_sent += len;
1151 m_bw_stat.add_bytes(len);
1154 recv_GDU_more(true);
1159 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1161 ODR o = odr_encode();
1162 const char *ctype = "text/xml";
1163 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1164 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1166 hres->version = odr_strdup(o, m_http_version);
1167 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1168 if (m_http_keepalive)
1169 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1172 if (http_code == 401)
1173 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1175 static Z_SOAP_Handler soap_handlers[2] = {
1177 {"http://www.loc.gov/zing/srw/", 0,
1178 (Z_SOAP_fun) yaz_srw_codec},
1183 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1184 soap_package->which = Z_SOAP_generic;
1185 soap_package->u.generic =
1186 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1187 soap_package->u.generic->no = 0;
1188 soap_package->u.generic->ns = soap_handlers[0].ns;
1189 soap_package->u.generic->p = (void *) srw_pdu;
1190 soap_package->ns = m_soap_ns;
1191 z_soap_codec_enc_xsl(o, &soap_package,
1192 &hres->content_buf, &hres->content_len,
1193 soap_handlers, 0, m_s2z_stylesheet);
1194 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1196 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1200 int r = send_GDU(gdu, &len);
1201 m_bytes_sent += len;
1202 m_bw_stat.add_bytes(len);
1205 recv_GDU_more(true);
1210 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1212 ODR o = odr_encode();
1213 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1214 odr_malloc(o, sizeof(*diagnostic));
1215 int num_diagnostic = 1;
1216 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1217 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1220 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1221 Z_DefaultDiagFormat *ddf)
1223 int bib1_code = *ddf->condition;
1224 if (bib1_code == 109)
1226 srw_res->num_diagnostics = 1;
1227 srw_res->diagnostics = (Z_SRW_diagnostic *)
1228 odr_malloc(o, sizeof(*srw_res->diagnostics));
1229 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1230 yaz_diag_bib1_to_srw(*ddf->condition),
1235 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1237 ODR o = odr_encode();
1238 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1239 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1241 srw_res->numberOfRecords = odr_intdup (o, hits);
1242 if (records && records->which == Z_Records_DBOSD)
1244 srw_res->num_records =
1245 records->u.databaseOrSurDiagnostics->num_records;
1247 srw_res->records = (Z_SRW_record *)
1248 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1249 for (i = 0; i < srw_res->num_records; i++)
1251 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1252 if (npr->which != Z_NamePlusRecord_databaseRecord)
1254 srw_res->records[i].recordSchema = "diagnostic";
1255 srw_res->records[i].recordPacking = m_s2z_packing;
1256 srw_res->records[i].recordData_buf = "67";
1257 srw_res->records[i].recordData_len = 2;
1258 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1261 Z_External *r = npr->u.databaseRecord;
1262 oident *ent = oid_getentbyoid(r->direct_reference);
1263 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1265 srw_res->records[i].recordSchema = m_schema;
1266 srw_res->records[i].recordPacking = m_s2z_packing;
1267 srw_res->records[i].recordData_buf = (char*)
1268 r->u.octet_aligned->buf;
1269 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1270 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1274 srw_res->records[i].recordSchema = "diagnostic";
1275 srw_res->records[i].recordPacking = m_s2z_packing;
1276 srw_res->records[i].recordData_buf = "67";
1277 srw_res->records[i].recordData_len = 2;
1278 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1282 if (records && records->which == Z_Records_NSD)
1285 http_code = z_to_srw_diag(odr_encode(), srw_res,
1286 records->u.nonSurrogateDiagnostic);
1288 return send_http_response(http_code);
1290 return send_srw_response(srw_pdu);
1294 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1295 int num_diagnostics, int http_code /* = 200 */)
1297 ODR o = odr_encode();
1298 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1299 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1301 srw_res->num_diagnostics = num_diagnostics;
1302 srw_res->diagnostics = diagnostics;
1303 return send_srw_response(srw_pdu, http_code);
1306 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1307 int num_diagnostics)
1309 Yaz_ProxyConfig *cfg = check_reconfigure();
1313 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1314 m_s2z_database, &len);
1317 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1318 Z_SRW_explainResponse *er = res->u.explain_response;
1320 er->record.recordData_buf = b;
1321 er->record.recordData_len = len;
1322 er->record.recordPacking = m_s2z_packing;
1323 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1325 er->diagnostics = diagnostics;
1326 er->num_diagnostics = num_diagnostics;
1327 return send_srw_response(res);
1330 return send_http_response(404);
1333 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1337 if (apdu->which == Z_APDU_initResponse)
1339 Z_InitResponse *res = apdu->u.initResponse;
1340 if (*res->result == 0)
1342 send_to_srw_client_error(3, 0);
1344 else if (!m_s2z_search_apdu)
1346 send_srw_explain_response(0, 0);
1350 handle_incoming_Z_PDU(m_s2z_search_apdu);
1353 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1355 m_s2z_search_apdu = 0;
1356 Z_SearchResponse *res = apdu->u.searchResponse;
1357 m_s2z_hit_count = *res->resultCount;
1358 if (res->records && res->records->which == Z_Records_NSD)
1360 send_to_srw_client_ok(0, res->records, 1);
1362 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1365 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1367 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1369 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1371 *pr->numberOfRecordsRequested =
1372 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1374 handle_incoming_Z_PDU(m_s2z_present_apdu);
1378 m_s2z_present_apdu = 0;
1379 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1382 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1385 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1387 m_s2z_present_apdu = 0;
1388 Z_PresentResponse *res = apdu->u.presentResponse;
1389 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1395 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1396 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1398 int r = send_Z_PDU(apdu, &len);
1399 m_bytes_sent += len;
1400 m_bw_stat.add_bytes(len);
1407 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1409 int kill_session = 0;
1410 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1413 *new_id = m_referenceId;
1415 if (apdu->which == Z_APDU_searchResponse)
1417 Z_SearchResponse *sr = apdu->u.searchResponse;
1418 Z_Records *p = sr->records;
1419 if (p && p->which == Z_Records_NSD)
1421 Z_DiagRec dr, *dr_p = &dr;
1422 dr.which = Z_DiagRec_defaultFormat;
1423 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1425 *sr->searchStatus = 0;
1426 display_diagrecs(&dr_p, 1);
1430 if (p && p->which == Z_Records_DBOSD)
1434 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1437 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1438 if (m_marcxml_mode == marcxml)
1439 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1442 convert_records_charset(p->u.databaseOrSurDiagnostics,
1444 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1448 if (sr->resultCount)
1450 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1452 if (*sr->resultCount < 0)
1454 m_flag_invalid_session = 1;
1457 *sr->searchStatus = 0;
1459 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1460 *sr->resultCount = 0;
1465 else if (apdu->which == Z_APDU_presentResponse)
1467 Z_PresentResponse *sr = apdu->u.presentResponse;
1468 Z_Records *p = sr->records;
1469 if (p && p->which == Z_Records_NSD)
1471 Z_DiagRec dr, *dr_p = &dr;
1472 dr.which = Z_DiagRec_defaultFormat;
1473 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1474 if (*sr->presentStatus == Z_PresentStatus_success)
1475 *sr->presentStatus = Z_PresentStatus_failure;
1476 display_diagrecs(&dr_p, 1);
1478 if (p && p->which == Z_Records_DBOSD)
1482 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1485 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1486 if (m_marcxml_mode == marcxml)
1487 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1490 convert_records_charset(p->u.databaseOrSurDiagnostics,
1492 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1496 else if (apdu->which == Z_APDU_initResponse)
1498 //Get and check negotiation record
1499 //from init response.
1500 handle_charset_lang_negotiation(apdu);
1502 if (m_initRequest_options)
1505 (Odr_bitmask *)odr_malloc(odr_encode(),
1506 sizeof(Odr_bitmask));
1507 ODR_MASK_ZERO(nopt);
1510 for (i = 0; i<24; i++)
1511 if (ODR_MASK_GET(m_initRequest_options, i) &&
1512 ODR_MASK_GET(apdu->u.initResponse->options, i))
1513 ODR_MASK_SET(nopt, i);
1514 apdu->u.initResponse->options = nopt;
1516 if (m_initRequest_version)
1518 Z_ProtocolVersion *nopt =
1519 (Odr_bitmask *)odr_malloc(odr_encode(),
1520 sizeof(Odr_bitmask));
1521 ODR_MASK_ZERO(nopt);
1524 for (i = 0; i<8; i++)
1525 if (ODR_MASK_GET(m_initRequest_version, i) &&
1526 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1527 ODR_MASK_SET(nopt, i);
1528 apdu->u.initResponse->protocolVersion = nopt;
1530 apdu->u.initResponse->preferredMessageSize =
1531 odr_intdup(odr_encode(),
1532 m_client->m_initResponse_preferredMessageSize >
1533 m_initRequest_preferredMessageSize ?
1534 m_initRequest_preferredMessageSize :
1535 m_client->m_initResponse_preferredMessageSize);
1536 apdu->u.initResponse->maximumRecordSize =
1537 odr_intdup(odr_encode(),
1538 m_client->m_initResponse_maximumRecordSize >
1539 m_initRequest_maximumRecordSize ?
1540 m_initRequest_maximumRecordSize :
1541 m_client->m_initResponse_maximumRecordSize);
1544 int r = send_PDU_convert(apdu);
1551 m_parent->pre_init();
1556 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1558 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1560 odr_reset(m_idAuthentication_odr);
1561 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1562 m_idAuthentication_ber_buf =
1563 odr_getbuf(m_idAuthentication_odr,
1564 &m_idAuthentication_ber_size, 0);
1567 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1572 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1574 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1575 ODR odr = odr_createmem(ODR_ENCODE);
1577 z_IdAuthentication(odr, &t, 1, 0);
1579 char *buf = odr_getbuf(odr, &sz, 0);
1580 if (buf && m_idAuthentication_ber_buf
1581 && sz == m_idAuthentication_ber_size
1582 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1588 if (!buf && !m_idAuthentication_ber_buf)
1593 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1596 const char *apdu_name_tmp = apdu_name(apdu);
1597 int r = send_Z_PDU(apdu, &len);
1598 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1599 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1601 apdu_name_tmp, get_hostname(), len);
1602 m_bytes_sent += len;
1606 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1608 if (apdu->which == Z_APDU_presentRequest)
1610 Z_PresentRequest *pr = apdu->u.presentRequest;
1611 int toget = *pr->numberOfRecordsRequested;
1612 int start = *pr->resultSetStartPoint;
1614 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1615 pr->resultSetId, start, toget);
1617 if (*m_parent->m_optimize == '0')
1620 if (!m_client->m_last_resultSetId)
1622 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1623 new_apdu->u.presentResponse->records =
1624 create_nonSurrogateDiagnostics(
1626 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1628 send_to_client(new_apdu);
1631 if (start < 1 || toget < 0)
1633 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1634 new_apdu->u.presentResponse->records =
1635 create_nonSurrogateDiagnostics(
1637 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1639 send_to_client(new_apdu);
1642 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1644 if (start+toget-1 > m_client->m_last_resultCount)
1646 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1647 new_apdu->u.presentResponse->records =
1648 create_nonSurrogateDiagnostics(
1650 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1652 send_to_client(new_apdu);
1655 Z_NamePlusRecordList *npr;
1657 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1658 m_session_str, start, toget, yaz_z3950oid_to_str(
1659 pr->preferredRecordSyntax, &oclass));
1661 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1662 pr->preferredRecordSyntax,
1663 pr->recordComposition))
1665 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1667 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1668 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1670 new_apdu->u.presentResponse->numberOfRecordsReturned
1671 = odr_intdup(odr_encode(), toget);
1673 new_apdu->u.presentResponse->records = (Z_Records*)
1674 odr_malloc(odr_encode(), sizeof(Z_Records));
1675 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1676 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1677 new_apdu->u.presentResponse->nextResultSetPosition =
1678 odr_intdup(odr_encode(), start+toget);
1680 send_to_client(new_apdu);
1686 if (apdu->which != Z_APDU_searchRequest)
1688 Z_SearchRequest *sr = apdu->u.searchRequest;
1689 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1690 Yaz_Z_Databases this_databases;
1692 this_databases.set(sr->num_databaseNames, (const char **)
1695 this_query->set_Z_Query(sr->query);
1697 // Check for non-negative piggyback params.
1698 if (*sr->smallSetUpperBound < 0
1699 || *sr->largeSetLowerBound < 0
1700 || *sr->mediumSetPresentNumber < 0)
1702 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1703 // Not a present request.. But can't find better diagnostic
1704 new_apdu->u.searchResponse->records =
1705 create_nonSurrogateDiagnostics(
1707 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1708 send_to_client(new_apdu);
1712 char query_str[120];
1713 this_query->print(query_str, sizeof(query_str)-1);
1714 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1716 if (*m_parent->m_optimize != '0' &&
1717 m_client->m_last_ok && m_client->m_last_query &&
1718 m_client->m_last_query->match(this_query) &&
1719 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1720 m_client->m_last_databases.match(this_databases))
1723 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1724 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1726 Z_NamePlusRecordList *npr;
1727 int toget = *sr->mediumSetPresentNumber;
1728 Z_RecordComposition *comp = 0;
1730 if (toget > m_client->m_last_resultCount)
1731 toget = m_client->m_last_resultCount;
1733 if (sr->mediumSetElementSetNames)
1735 comp = (Z_RecordComposition *)
1736 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1737 comp->which = Z_RecordComp_simple;
1738 comp->u.simple = sr->mediumSetElementSetNames;
1741 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1742 sr->preferredRecordSyntax, comp))
1744 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1746 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1747 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1748 new_apdu->u.searchResponse->resultCount =
1749 &m_client->m_last_resultCount;
1751 new_apdu->u.searchResponse->numberOfRecordsReturned
1752 = odr_intdup(odr_encode(), toget);
1754 new_apdu->u.searchResponse->presentStatus =
1755 odr_intdup(odr_encode(), Z_PresentStatus_success);
1756 new_apdu->u.searchResponse->records = (Z_Records*)
1757 odr_malloc(odr_encode(), sizeof(Z_Records));
1758 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1759 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1760 new_apdu->u.searchResponse->nextResultSetPosition =
1761 odr_intdup(odr_encode(), toget+1);
1762 send_to_client(new_apdu);
1768 // send present request (medium size)
1769 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1772 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1773 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1774 pr->referenceId = sr->referenceId;
1775 pr->resultSetId = sr->resultSetName;
1776 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1777 *pr->numberOfRecordsRequested = toget;
1778 pr->recordComposition = comp;
1779 m_client->m_sr_transform = 1;
1783 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1784 m_client->m_last_resultCount <= 0)
1786 // large set. Return pseudo-search response immediately
1787 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1789 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1790 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1791 new_apdu->u.searchResponse->resultCount =
1792 &m_client->m_last_resultCount;
1793 send_to_client(new_apdu);
1798 Z_NamePlusRecordList *npr;
1799 int toget = m_client->m_last_resultCount;
1800 Z_RecordComposition *comp = 0;
1802 // send a present request (small set)
1804 if (sr->smallSetElementSetNames)
1806 comp = (Z_RecordComposition *)
1807 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1808 comp->which = Z_RecordComp_simple;
1809 comp->u.simple = sr->smallSetElementSetNames;
1812 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1813 sr->preferredRecordSyntax, comp))
1815 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1817 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1818 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1819 new_apdu->u.searchResponse->resultCount =
1820 &m_client->m_last_resultCount;
1822 new_apdu->u.searchResponse->numberOfRecordsReturned
1823 = odr_intdup(odr_encode(), toget);
1825 new_apdu->u.searchResponse->presentStatus =
1826 odr_intdup(odr_encode(), Z_PresentStatus_success);
1827 new_apdu->u.searchResponse->records = (Z_Records*)
1828 odr_malloc(odr_encode(), sizeof(Z_Records));
1829 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1830 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1831 new_apdu->u.searchResponse->nextResultSetPosition =
1832 odr_intdup(odr_encode(), toget+1);
1833 send_to_client(new_apdu);
1838 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1840 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1841 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1842 pr->referenceId = sr->referenceId;
1843 pr->resultSetId = sr->resultSetName;
1844 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1845 *pr->numberOfRecordsRequested = toget;
1846 pr->recordComposition = comp;
1847 m_client->m_sr_transform = 1;
1852 else // query doesn't match
1854 delete m_client->m_last_query;
1855 m_client->m_last_query = this_query;
1856 m_client->m_last_ok = 0;
1857 m_client->m_cache.clear();
1858 m_client->m_resultSetStartPoint = 0;
1860 xfree (m_client->m_last_resultSetId);
1861 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1863 m_client->m_last_databases.set(sr->num_databaseNames,
1864 (const char **) sr->databaseNames);
1870 void Yaz_Proxy::inc_request_no()
1873 char *cp = m_session_str + strlen(m_session_str)-1;
1876 while (*cp && *cp != ' ')
1879 sprintf(cp+1, "%d ", m_request_no);
1882 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1886 m_bytes_recv += len;
1888 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1889 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1890 m_session_str, gdu_name(apdu), len);
1893 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1894 if (apdu->which == Z_GDU_Z3950
1895 && apdu->u.z3950->which == Z_APDU_searchRequest)
1897 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1898 if (req->query && req->query->which == Z_Query_type_1)
1900 Z_RPNQuery *rpnquery = req->query->u.type_1;
1901 if (rpnquery->attributeSetId)
1903 rpnquery->attributeSetId[0] = -2;
1904 rpnquery->attributeSetId[1] = -1;
1905 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1911 #if HAVE_GETTIMEOFDAY
1912 gettimeofday((struct timeval *) m_time_tv, 0);
1914 m_bw_stat.add_bytes(len);
1915 m_pdu_stat.add_bytes(1);
1917 GDU *gdu = new GDU(apdu);
1919 if (gdu->get() == 0)
1922 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1927 m_in_queue.enqueue(gdu);
1928 recv_GDU_more(false);
1931 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1933 if (z_gdu->which == Z_GDU_HTTP_Request)
1935 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1936 const char *x_forwarded_for =
1937 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1938 if (x_forwarded_for)
1941 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1942 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1944 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1946 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1947 sprintf(m_session_str, "%ld:%d %.80s %d ",
1948 (long) time(0), m_session_no, m_peername, m_request_no);
1950 sprintf(m_session_str, "%ld:%d %d ",
1951 (long) time(0), m_session_no, m_request_no);
1956 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1959 m_parent->m_connect.cleanup(false);
1960 m_parent->m_connect.add_connect(m_peername);
1962 int connect_total = m_parent->m_connect.get_total(m_peername);
1963 int max_connect = m_parent->m_max_connect;
1965 if (max_connect && connect_total > max_connect)
1967 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1968 m_session_str, connect_total, max_connect);
1973 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1976 int limit_connect = m_parent->m_limit_connect;
1978 reduce = connect_total / limit_connect;
1983 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1985 HTTP_Forwarded(gdu->get());
1989 if (m_request_no == 1)
1993 connect_stat(block, reduce);
1997 m_timeout_mode = timeout_busy;
2003 int bw_total = m_bw_stat.get_total();
2004 int pdu_total = m_pdu_stat.get_total();
2005 int search_total = m_search_stat.get_total();
2007 assert(m_timeout_mode == timeout_busy);
2008 assert(m_timeout_gdu == 0);
2011 reduce += search_total / m_search_max;
2013 reduce += (bw_total/m_bw_max);
2016 if (pdu_total > m_pdu_max)
2018 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2019 reduce = (reduce > nreduce) ? reduce : nreduce;
2025 /* uncomment to force a big reduce */
2026 m_timeout_mode = timeout_reduce;
2027 m_timeout_gdu = gdu;
2028 timeout(3); // call us reduce seconds later
2033 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2034 m_session_str, reduce, bw_total, pdu_total, search_total,
2035 m_bw_max, m_pdu_max, m_search_max);
2037 m_timeout_mode = timeout_reduce;
2038 m_timeout_gdu = gdu;
2039 timeout(reduce); // call us reduce seconds later
2042 recv_GDU_normal(gdu);
2045 void Yaz_Proxy::recv_GDU_more(bool normal)
2048 if (normal && m_timeout_mode == timeout_busy)
2049 m_timeout_mode = timeout_normal;
2050 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2052 m_timeout_mode = timeout_busy;
2060 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2063 gdu->move_away_gdu(odr_decode(), &apdu);
2066 if (apdu->which == Z_GDU_Z3950)
2067 handle_incoming_Z_PDU(apdu->u.z3950);
2068 else if (apdu->which == Z_GDU_HTTP_Request)
2069 handle_incoming_HTTP(apdu->u.HTTP_Request);
2072 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2074 if (m_max_record_retrieve)
2076 if (apdu->which == Z_APDU_presentRequest)
2078 Z_PresentRequest *pr = apdu->u.presentRequest;
2079 if (pr->numberOfRecordsRequested &&
2080 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2081 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2086 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2088 if (apdu->which == Z_APDU_initRequest)
2090 if (m_initRequest_options &&
2091 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2092 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2094 // There is no negotiation proposal from
2095 // client's side. OK. The proxy negotiation
2097 Z_InitRequest *initRequest = apdu->u.initRequest;
2098 Z_OtherInformation **otherInfo;
2099 Z_OtherInformationUnit *oi;
2100 get_otherInfoAPDU(apdu, &otherInfo);
2101 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2104 ODR_MASK_SET(initRequest->options,
2105 Z_Options_negotiationModel);
2106 oi->which = Z_OtherInfo_externallyDefinedInfo;
2107 oi->information.externallyDefinedInfo =
2108 yaz_set_proposal_charneg(odr_encode(),
2109 (const char**)&m_proxy_negotiation_charset,
2110 m_proxy_negotiation_charset ? 1:0,
2111 (const char**)&m_proxy_negotiation_lang,
2112 m_proxy_negotiation_lang ? 1:0,
2116 else if (m_initRequest_options &&
2117 ODR_MASK_GET(m_initRequest_options,
2118 Z_Options_negotiationModel) &&
2119 m_charset_converter->get_target_query_charset())
2121 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2123 m_charset_converter->get_target_query_charset());
2124 Z_InitRequest *initRequest = apdu->u.initRequest;
2125 Z_CharSetandLanguageNegotiation *negotiation =
2126 yaz_get_charneg_record (initRequest->otherInfo);
2128 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2130 NMEM nmem = nmem_create();
2131 char **charsets = 0;
2132 int num_charsets = 0;
2136 yaz_get_proposal_charneg (nmem, negotiation,
2137 &charsets, &num_charsets,
2138 &langs, &num_langs, &selected);
2140 for (i = 0; i<num_charsets; i++)
2141 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2143 for (i = 0; i<num_langs; i++)
2144 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2147 const char *t_charset =
2148 m_charset_converter->get_target_query_charset();
2149 // sweep through charsets and pick the first supported
2151 for (i = 0; i<num_charsets; i++)
2153 const char *c_charset = charsets[i];
2154 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2157 if (i != num_charsets)
2159 // got one .. set up ODR for reverse direction
2160 const char *c_charset = charsets[i];
2161 odr_set_charset(odr_encode(), c_charset, t_charset);
2162 m_charset_converter->set_client_query_charset(c_charset);
2163 m_charset_converter->set_client_charset_selected(selected);
2166 ODR_MASK_CLEAR(m_initRequest_options,
2167 Z_Options_negotiationModel);
2168 yaz_del_charneg_record(&initRequest->otherInfo);
2172 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2176 else if (m_charset_converter->get_target_query_charset() &&
2177 m_proxy_negotiation_default_charset)
2179 m_charset_converter->
2180 set_client_query_charset(m_proxy_negotiation_default_charset);
2183 else if (apdu->which == Z_APDU_initResponse)
2185 Z_InitResponse *initResponse = apdu->u.initResponse;
2186 Z_OtherInformation **otherInfo;
2187 get_otherInfoAPDU(apdu, &otherInfo);
2189 Z_CharSetandLanguageNegotiation *charneg = 0;
2191 if (otherInfo && *otherInfo &&
2192 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2193 && (charneg = yaz_get_charneg_record(*otherInfo)))
2199 yaz_get_response_charneg(m_referenceId_mem, charneg,
2200 &charset, &lang, &selected);
2202 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2203 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2205 if (m_initRequest_options &&
2206 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2208 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2211 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2213 // negotiation-charset, negotiation-lang
2214 // elements of config file in use.
2216 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2219 // clear negotiation option.
2220 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2222 // Delete negotiation (charneg-3) entry.
2223 yaz_del_charneg_record(otherInfo);
2228 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2230 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2233 else if (m_charset_converter->get_client_query_charset())
2235 Z_OtherInformation **otherInfo;
2236 Z_OtherInformationUnit *oi;
2237 get_otherInfoAPDU(apdu, &otherInfo);
2238 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2241 ODR_MASK_SET(initResponse->options,
2242 Z_Options_negotiationModel);
2243 if (m_initRequest_options)
2244 ODR_MASK_SET(m_initRequest_options,
2245 Z_Options_negotiationModel);
2247 oi->which = Z_OtherInfo_externallyDefinedInfo;
2248 oi->information.externallyDefinedInfo =
2249 yaz_set_response_charneg(
2251 m_charset_converter->get_client_query_charset(),
2253 m_charset_converter->get_client_charset_selected());
2260 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2262 const char *addinfo)
2264 Z_Records *rec = (Z_Records *)
2265 odr_malloc (odr, sizeof(*rec));
2267 odr_malloc (odr, sizeof(*err));
2268 Z_DiagRec *drec = (Z_DiagRec *)
2269 odr_malloc (odr, sizeof(*drec));
2270 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2271 odr_malloc (odr, sizeof(*dr));
2273 rec->which = Z_Records_NSD;
2274 rec->u.nonSurrogateDiagnostic = dr;
2275 dr->diagnosticSetId =
2276 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2277 dr->condition = err;
2278 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2279 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2283 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2285 if (apdu->which == Z_APDU_searchRequest &&
2286 apdu->u.searchRequest->query &&
2287 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2288 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2290 Z_RPNQuery *rpnquery = 0;
2291 Z_SearchRequest *sr = apdu->u.searchRequest;
2294 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2295 sr->query->u.type_104->u.cql);
2297 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2298 &rpnquery, odr_encode(),
2301 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2304 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2305 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2307 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2308 new_apdu->u.searchResponse->records =
2309 create_nonSurrogateDiagnostics(odr_encode(),
2310 yaz_diag_srw_to_bib1(r),
2312 *new_apdu->u.searchResponse->searchStatus = 0;
2314 send_to_client(new_apdu);
2320 sr->query->which = Z_Query_type_1;
2321 sr->query->u.type_1 = rpnquery;
2328 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2330 if (apdu->which == Z_APDU_searchRequest &&
2331 apdu->u.searchRequest->query)
2333 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2334 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2337 m_charset_converter->set_client_query_charset("UTF-8");
2338 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2339 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2346 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2348 if (apdu->which == Z_APDU_searchRequest)
2350 Z_SearchRequest *sr = apdu->u.searchRequest;
2354 Yaz_ProxyConfig *cfg = check_reconfigure();
2356 err = cfg->check_query(odr_encode(), m_default_target,
2357 sr->query, &addinfo);
2360 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2362 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2363 new_apdu->u.searchResponse->records =
2364 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2365 *new_apdu->u.searchResponse->searchStatus = 0;
2367 send_to_client(new_apdu);
2375 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2377 if (apdu->which != Z_APDU_initRequest)
2378 return 1; // pass if no init request
2379 Z_InitRequest *req = apdu->u.initRequest;
2381 Yaz_ProxyConfig *cfg = check_reconfigure();
2383 return 1; // pass if no config
2386 if (req->idAuthentication == 0)
2388 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2391 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2393 ret = cfg->client_authentication(
2395 req->idAuthentication->u.idPass->userId,
2396 req->idAuthentication->u.idPass->groupId,
2397 req->idAuthentication->u.idPass->password,
2400 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2402 char user[64], pass[64];
2405 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2406 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2410 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2415 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2417 m_marcxml_mode = none;
2418 if (apdu->which == Z_APDU_searchRequest)
2420 Z_SearchRequest *sr = apdu->u.searchRequest;
2423 Yaz_ProxyConfig *cfg = check_reconfigure();
2425 Z_RecordComposition rc_temp, *rc = 0;
2426 if (sr->smallSetElementSetNames)
2428 rc_temp.which = Z_RecordComp_simple;
2429 rc_temp.u.simple = sr->smallSetElementSetNames;
2433 if (sr->preferredRecordSyntax)
2436 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2437 m_frontend_type = ent->value;
2440 m_frontend_type = VAL_NONE;
2442 char *stylesheet_name = 0;
2444 err = cfg->check_syntax(odr_encode(),
2446 sr->preferredRecordSyntax, rc,
2447 &addinfo, &stylesheet_name, &m_schema,
2448 &m_backend_type, &m_backend_charset,
2449 &m_usemarcon_ini_stage1,
2450 &m_usemarcon_ini_stage2);
2451 if (stylesheet_name)
2453 m_parent->low_socket_close();
2456 if (m_stylesheet_xsp)
2457 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2458 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2461 m_stylesheet_offset = 0;
2462 xfree(stylesheet_name);
2464 m_parent->low_socket_open();
2468 sr->smallSetElementSetNames = 0;
2469 sr->mediumSetElementSetNames = 0;
2470 m_marcxml_mode = marcxml;
2474 sr->preferredRecordSyntax =
2475 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2479 sr->preferredRecordSyntax =
2480 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2485 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2487 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2488 new_apdu->u.searchResponse->records =
2489 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2490 *new_apdu->u.searchResponse->searchStatus = 0;
2492 send_to_client(new_apdu);
2496 else if (m_backend_type)
2498 sr->preferredRecordSyntax =
2499 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2502 else if (apdu->which == Z_APDU_presentRequest)
2504 Z_PresentRequest *pr = apdu->u.presentRequest;
2507 Yaz_ProxyConfig *cfg = check_reconfigure();
2509 if (pr->preferredRecordSyntax)
2512 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2513 m_frontend_type = ent->value;
2516 m_frontend_type = VAL_NONE;
2518 char *stylesheet_name = 0;
2520 err = cfg->check_syntax(odr_encode(), m_default_target,
2521 pr->preferredRecordSyntax,
2522 pr->recordComposition,
2523 &addinfo, &stylesheet_name, &m_schema,
2524 &m_backend_type, &m_backend_charset,
2525 &m_usemarcon_ini_stage1,
2526 &m_usemarcon_ini_stage2
2528 if (stylesheet_name)
2530 m_parent->low_socket_close();
2533 if (m_stylesheet_xsp)
2534 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2535 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2538 m_stylesheet_offset = 0;
2539 xfree(stylesheet_name);
2541 m_parent->low_socket_open();
2545 pr->recordComposition = 0;
2546 m_marcxml_mode = marcxml;
2550 pr->preferredRecordSyntax =
2551 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2555 pr->preferredRecordSyntax =
2556 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2561 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2563 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2564 new_apdu->u.presentResponse->records =
2565 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2566 *new_apdu->u.presentResponse->presentStatus =
2567 Z_PresentStatus_failure;
2569 send_to_client(new_apdu);
2573 else if (m_backend_type)
2575 pr->preferredRecordSyntax =
2576 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2582 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2586 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2587 odr_malloc(o, sizeof(Z_ElementSetNames));
2588 esn->which = Z_ElementSetNames_generic;
2589 esn->u.generic = odr_strdup(o, schema);
2593 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2596 Yaz_ProxyConfig *cfg = check_reconfigure();
2598 t = cfg->get_explain_name(db, backend_db);
2600 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2607 xfree(m_default_target);
2608 m_default_target = xstrdup(t);
2612 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2615 if (strcmp(hreq->method, "GET"))
2617 if (hreq->path[0] != '/')
2619 const char *cp = hreq->path;
2622 if (*cp == '/' && strchr("/.", cp[1]))
2627 Yaz_ProxyConfig *cfg = check_reconfigure();
2629 if (!cfg->get_file_access_info(hreq->path+1))
2632 const char *fname = hreq->path+1;
2633 if (stat(fname, &sbuf))
2635 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2639 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2641 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2644 if (sbuf.st_size > (off_t) 1000000)
2646 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2651 ODR o = odr_encode();
2653 const char *ctype = cfg->check_mime_type(fname);
2654 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2655 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2657 hres->version = odr_strdup(o, m_http_version);
2658 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2659 if (m_http_keepalive)
2660 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2664 hres->content_len = sbuf.st_size;
2665 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2666 FILE *f = fopen(fname, "rb");
2669 fread(hres->content_buf, 1, hres->content_len, f);
2676 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2678 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2682 send_GDU(gdu, &len);
2683 recv_GDU_more(true);
2687 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2691 odr_destroy(m_s2z_odr_init);
2694 if (m_s2z_odr_search)
2696 odr_destroy(m_s2z_odr_search);
2697 m_s2z_odr_search = 0;
2700 m_http_keepalive = 0;
2702 if (!strcmp(hreq->version, "1.0"))
2704 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2705 if (v && !strcmp(v, "Keep-Alive"))
2706 m_http_keepalive = 1;
2708 m_http_keepalive = 0;
2709 m_http_version = "1.0";
2713 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2714 if (v && !strcmp(v, "close"))
2715 m_http_keepalive = 0;
2717 m_http_keepalive = 1;
2718 m_http_version = "1.1";
2721 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2722 char authorization_str[255];
2723 *authorization_str = '\0';
2724 if (a && strncasecmp(a, "Basic ", 6) == 0)
2725 base64_decode(a + 6, authorization_str, 254);
2727 Z_SRW_PDU *srw_pdu = 0;
2728 Z_SOAP *soap_package = 0;
2730 Z_SRW_diagnostic *diagnostic = 0;
2731 int num_diagnostic = 0;
2733 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2735 if (file_access(hreq))
2739 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2741 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2742 &charset, &diagnostic, &num_diagnostic) == 0)
2744 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2745 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2746 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2747 m_s2z_init_apdu = 0;
2748 m_s2z_search_apdu = 0;
2749 m_s2z_present_apdu = 0;
2751 m_s2z_stylesheet = 0;
2753 Z_IdAuthentication *auth = NULL;
2754 if (*authorization_str)
2756 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2757 auth->which = Z_IdAuthentication_idPass;
2758 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2759 auth->u.idPass->groupId = NULL;
2760 char *p = strchr(authorization_str, ':');
2765 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2767 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2770 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2773 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2775 const char *backend_db = srw_req->database;
2776 srw_get_client(srw_req->database, &backend_db);
2778 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2779 // recordXPath unsupported.
2780 if (srw_req->recordXPath)
2782 yaz_add_srw_diagnostic(odr_decode(),
2783 &diagnostic, &num_diagnostic,
2787 if (srw_req->sort_type != Z_SRW_sort_type_none)
2789 yaz_add_srw_diagnostic(odr_decode(),
2790 &diagnostic, &num_diagnostic,
2794 if (srw_req->stylesheet)
2796 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2798 // set packing for response records ..
2799 if (srw_req->recordPacking &&
2800 !strcmp(srw_req->recordPacking, "xml"))
2801 m_s2z_packing = Z_SRW_recordPacking_XML;
2803 m_s2z_packing = Z_SRW_recordPacking_string;
2807 Z_SRW_PDU *srw_pdu =
2808 yaz_srw_get(odr_encode(),
2809 Z_SRW_searchRetrieve_response);
2810 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2812 srw_res->diagnostics = diagnostic;
2813 srw_res->num_diagnostics = num_diagnostic;
2814 send_srw_response(srw_pdu);
2818 // prepare search PDU
2819 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2820 Z_APDU_searchRequest);
2821 Z_SearchRequest *z_searchRequest =
2822 m_s2z_search_apdu->u.searchRequest;
2824 z_searchRequest->num_databaseNames = 1;
2825 z_searchRequest->databaseNames = (char**)
2826 odr_malloc(m_s2z_odr_search, sizeof(char *));
2827 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2830 // query transformation
2831 Z_Query *query = (Z_Query *)
2832 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2833 z_searchRequest->query = query;
2835 if (srw_req->query_type == Z_SRW_query_type_cql)
2837 Z_External *ext = (Z_External *)
2838 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2839 ext->direct_reference =
2840 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2841 ext->indirect_reference = 0;
2842 ext->descriptor = 0;
2843 ext->which = Z_External_CQL;
2844 ext->u.cql = srw_req->query.cql;
2846 query->which = Z_Query_type_104;
2847 query->u.type_104 = ext;
2849 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2851 Z_RPNQuery *RPNquery;
2852 YAZ_PQF_Parser pqf_parser;
2854 pqf_parser = yaz_pqf_create ();
2856 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2857 srw_req->query.pqf);
2860 const char *pqf_msg;
2862 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2864 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2865 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2867 send_to_srw_client_error(10, 0);
2870 query->which = Z_Query_type_1;
2871 query->u.type_1 = RPNquery;
2873 yaz_pqf_destroy (pqf_parser);
2877 send_to_srw_client_error(7, "query");
2882 m_s2z_present_apdu = 0;
2884 if (srw_req->maximumRecords)
2885 max = *srw_req->maximumRecords;
2887 if (srw_req->startRecord)
2888 start = *srw_req->startRecord;
2891 // Some backend, such as Voyager doesn't honor piggyback
2892 // So we use present always (0 &&).
2893 if (0 && start <= 1) // Z39.50 piggyback
2895 *z_searchRequest->smallSetUpperBound = max;
2896 *z_searchRequest->mediumSetPresentNumber = max;
2897 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2899 z_searchRequest->preferredRecordSyntax =
2900 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2902 if (srw_req->recordSchema)
2904 z_searchRequest->smallSetElementSetNames =
2905 z_searchRequest->mediumSetElementSetNames =
2906 mk_esn_from_schema(m_s2z_odr_search,
2907 srw_req->recordSchema);
2910 else // Z39.50 present
2912 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2913 Z_APDU_presentRequest);
2914 Z_PresentRequest *z_presentRequest =
2915 m_s2z_present_apdu->u.presentRequest;
2916 *z_presentRequest->resultSetStartPoint = start;
2917 *z_presentRequest->numberOfRecordsRequested = max;
2918 z_presentRequest->preferredRecordSyntax =
2919 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2921 if (srw_req->recordSchema)
2923 z_presentRequest->recordComposition =
2924 (Z_RecordComposition *)
2925 odr_malloc(m_s2z_odr_search,
2926 sizeof(Z_RecordComposition));
2927 z_presentRequest->recordComposition->which =
2928 Z_RecordComp_simple;
2929 z_presentRequest->recordComposition->u.simple =
2930 mk_esn_from_schema(m_s2z_odr_search,
2931 srw_req->recordSchema);
2937 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2938 Z_APDU_initRequest);
2940 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2942 // prevent m_initRequest_apdu memory from being grabbed
2943 // in Yaz_Proxy::handle_incoming_Z_PDU
2944 m_initRequest_apdu = m_s2z_init_apdu;
2945 handle_incoming_Z_PDU(m_s2z_init_apdu);
2950 handle_incoming_Z_PDU(m_s2z_search_apdu);
2954 else if (srw_pdu->which == Z_SRW_explain_request)
2956 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2958 const char *backend_db = srw_req->database;
2959 srw_get_client(srw_req->database, &backend_db);
2961 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2964 if (srw_req->stylesheet)
2966 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2968 if (srw_req->recordPacking &&
2969 !strcmp(srw_req->recordPacking, "xml"))
2970 m_s2z_packing = Z_SRW_recordPacking_XML;
2972 m_s2z_packing = Z_SRW_recordPacking_string;
2976 send_srw_explain_response(diagnostic, num_diagnostic);
2982 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2983 Z_APDU_initRequest);
2985 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2987 // prevent m_initRequest_apdu memory from being grabbed
2988 // in Yaz_Proxy::handle_incoming_Z_PDU
2989 m_initRequest_apdu = m_s2z_init_apdu;
2990 handle_incoming_Z_PDU(m_s2z_init_apdu);
2993 send_srw_explain_response(0, 0);
2996 else if (srw_pdu->which == Z_SRW_scan_request)
2998 m_s2z_database = odr_strdup(m_s2z_odr_init,
2999 srw_pdu->u.scan_request->database);
3001 yaz_add_srw_diagnostic(odr_decode(),
3002 &diagnostic, &num_diagnostic,
3004 Z_SRW_PDU *srw_pdu =
3005 yaz_srw_get(odr_encode(),
3006 Z_SRW_scan_response);
3007 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3009 srw_res->diagnostics = diagnostic;
3010 srw_res->num_diagnostics = num_diagnostic;
3011 send_srw_response(srw_pdu);
3018 send_to_srw_client_error(4, 0);
3021 send_http_response(400);
3024 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3027 Z_OtherInformation **oi;
3028 get_otherInfoAPDU(apdu, &oi);
3030 if (apdu->u.initRequest->implementationId)
3031 yaz_log(YLOG_LOG, "%simplementationId: %s",
3032 m_session_str, apdu->u.initRequest->implementationId);
3033 if (apdu->u.initRequest->implementationName)
3034 yaz_log(YLOG_LOG, "%simplementationName: %s",
3035 m_session_str, apdu->u.initRequest->implementationName);
3036 if (apdu->u.initRequest->implementationVersion)
3037 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3038 m_session_str, apdu->u.initRequest->implementationVersion);
3039 if (m_initRequest_apdu == 0)
3041 if (m_initRequest_mem)
3042 nmem_destroy(m_initRequest_mem);
3044 m_initRequest_apdu = apdu;
3045 m_initRequest_mem = odr_extract_mem(odr_decode());
3047 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3048 preferredMessageSize;
3049 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3050 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3052 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3054 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3055 yaz_get_charneg_record(*oi);
3057 // Save proposal charsets and langs.
3058 if (ODR_MASK_GET(apdu->u.initRequest->options,
3059 Z_Options_negotiationModel)
3060 && charSetandLangRecord)
3063 yaz_get_proposal_charneg(m_referenceId_mem,
3064 charSetandLangRecord,
3065 &m_initRequest_oi_negotiation_charsets,
3066 &m_initRequest_oi_negotiation_num_charsets,
3067 &m_initRequest_oi_negotiation_langs,
3068 &m_initRequest_oi_negotiation_num_langs,
3069 &m_initRequest_oi_negotiation_selected);
3071 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3073 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3074 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3075 m_initRequest_oi_negotiation_charsets[i]:"none");
3077 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3079 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3080 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3081 m_initRequest_oi_negotiation_langs[i]:"none");
3083 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3084 m_session_str, m_initRequest_oi_negotiation_selected);
3086 // save init options for the response..
3087 m_initRequest_options = apdu->u.initRequest->options;
3089 apdu->u.initRequest->options =
3090 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3091 sizeof(Odr_bitmask));
3092 ODR_MASK_ZERO(apdu->u.initRequest->options);
3094 for (i = 0; i<= 24; i++)
3095 ODR_MASK_SET(apdu->u.initRequest->options, i);
3096 // check negotiation option
3097 if (!ODR_MASK_GET(m_initRequest_options,
3098 Z_Options_negotiationModel))
3100 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3101 Z_Options_negotiationModel);
3103 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3104 Z_Options_concurrentOperations);
3106 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3107 apdu->u.initRequest->protocolVersion =
3108 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3109 sizeof(Odr_bitmask));
3110 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3112 for (i = 0; i<= 8; i++)
3113 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3115 handle_charset_lang_negotiation(apdu);
3116 if (m_client->m_init_flag)
3118 if (handle_init_response_for_invalid_session(apdu))
3120 if (m_client->m_initResponse)
3122 Z_APDU *apdu2 = m_client->m_initResponse;
3123 apdu2->u.initResponse->otherInfo = 0;
3124 if (m_client->m_cookie && *m_client->m_cookie)
3125 set_otherInformationString(apdu2, VAL_COOKIE, 1,
3126 m_client->m_cookie);
3127 apdu2->u.initResponse->referenceId =
3128 apdu->u.initRequest->referenceId;
3129 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3130 apdu2->u.initResponse->protocolVersion =
3131 m_client->m_initResponse_version;
3133 handle_charset_lang_negotiation(apdu2);
3135 if (m_timeout_mode == timeout_busy)
3136 m_timeout_mode = timeout_normal;
3137 send_to_client(apdu2);
3141 m_client->m_init_flag = 1;
3144 Auth_Msg *m = new Auth_Msg;
3146 z_APDU(odr_encode(), &apdu, 0, "encode");
3147 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3148 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3149 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3150 odr_reset(odr_encode());
3153 m_my_thread->put(m);
3155 int ret = handle_authentication(apdu);
3156 result_authentication(apdu, ret);
3160 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3162 Z_ReferenceId **refid = get_referenceIdP(apdu);
3163 nmem_reset(m_referenceId_mem);
3164 if (refid && *refid)
3166 m_referenceId = (Z_ReferenceId *)
3167 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3168 m_referenceId->len = m_referenceId->size = (*refid)->len;
3169 m_referenceId->buf = (unsigned char *)
3170 nmem_malloc(m_referenceId_mem, (*refid)->len);
3171 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3176 if (!m_client && m_flag_invalid_session)
3178 // Got request for a session that is invalid..
3179 m_apdu_invalid_session = apdu; // save package
3180 m_mem_invalid_session = odr_extract_mem(odr_decode());
3181 apdu = m_initRequest_apdu; // but throw an init to the target
3184 if (apdu->which == Z_APDU_searchRequest)
3185 m_search_stat.add_bytes(1);
3187 // Determine our client.
3188 Z_OtherInformation **oi;
3189 get_otherInfoAPDU(apdu, &oi);
3190 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3194 { // HTTP. Send not found
3195 send_http_response(404);
3200 // Z39.50 just shutdown
3206 m_client->m_server = this;
3208 if (apdu->which == Z_APDU_initRequest)
3211 handle_incoming_Z_PDU_2(apdu);
3214 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3216 handle_max_record_retrieve(apdu);
3219 apdu = handle_syntax_validation(apdu);
3222 apdu = handle_query_transformation(apdu);
3225 apdu = handle_target_charset_conversion(apdu);
3228 apdu = handle_query_validation(apdu);
3231 apdu = result_set_optimize(apdu);
3235 m_client->timeout(m_target_idletime); // mark it active even
3236 recv_GDU_more(true);
3237 // though we didn't use it
3241 // delete other info construct completely if 0 elements
3242 Z_OtherInformation **oi;
3243 get_otherInfoAPDU(apdu, &oi);
3244 if (oi && *oi && (*oi)->num_elements == 0)
3247 if (apdu->which == Z_APDU_presentRequest &&
3248 m_client->m_resultSetStartPoint == 0)
3250 Z_PresentRequest *pr = apdu->u.presentRequest;
3251 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3252 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3254 m_client->m_resultSetStartPoint = 0;
3256 if (m_client->send_to_target(apdu) < 0)
3258 m_client->shutdown();
3261 m_client->m_waiting = 1;
3264 void Yaz_Proxy::connectNotify()
3268 void Yaz_Proxy::releaseClient()
3270 xfree(m_proxyTarget);
3272 m_flag_invalid_session = 0;
3273 // only keep if keep_alive flag is set...
3275 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3276 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3277 m_client->m_waiting == 0)
3279 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3281 m_client->get_hostname());
3282 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3283 m_session_str, m_client->m_pdu_recv,
3284 m_client->m_bytes_sent + m_client->m_bytes_recv,
3285 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3286 assert (m_client->m_waiting != 2);
3287 // Tell client (if any) that no server connection is there..
3288 m_client->m_server = 0;
3293 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3295 m_client->get_hostname());
3296 assert (m_client->m_waiting != 2);
3302 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3308 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3312 m_parent->pre_init();
3315 bool Yaz_Proxy::dec_ref()
3317 m_http_keepalive = 0;
3320 if (m_ref_count > 0)
3329 const char *Yaz_ProxyClient::get_session_str()
3333 return m_server->get_session_str();
3336 void Yaz_ProxyClient::shutdown()
3338 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3343 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3344 m_server->dec_ref();
3350 void Yaz_Proxy::failNotify()
3353 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3357 void Yaz_Proxy::send_response_fail_client(const char *addr)
3361 Z_SRW_diagnostic *diagnostic = 0;
3362 int num_diagnostic = 0;
3364 yaz_add_srw_diagnostic(odr_encode(),
3365 &diagnostic, &num_diagnostic,
3366 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3367 if (m_s2z_search_apdu)
3368 send_srw_search_response(diagnostic, num_diagnostic);
3370 send_srw_explain_response(diagnostic, num_diagnostic);
3373 void Yaz_ProxyClient::failNotify()
3376 m_server->inc_request_no();
3377 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3378 get_session_str(), get_hostname());
3381 m_server->send_response_fail_client(get_hostname());
3385 void Yaz_ProxyClient::connectNotify()
3387 const char *s = get_session_str();
3388 const char *h = get_hostname();
3389 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3391 timeout(m_target_idletime);
3396 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3397 *the_PDU_Observable, int fd)
3399 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3402 Yaz_ProxyClient::~Yaz_ProxyClient()
3407 m_next->m_prev = m_prev;
3408 m_waiting = 2; // for debugging purposes only.
3409 odr_destroy(m_init_odr);
3410 odr_destroy(m_idAuthentication_odr);
3411 delete m_last_query;
3412 xfree (m_last_resultSetId);
3416 void Yaz_ProxyClient::pre_init_client()
3418 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3419 Z_InitRequest *req = apdu->u.initRequest;
3422 for (i = 0; i<= 24; i++)
3423 ODR_MASK_SET(req->options, i);
3424 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3425 Z_Options_negotiationModel);
3426 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3427 Z_Options_concurrentOperations);
3428 for (i = 0; i<= 10; i++)
3429 ODR_MASK_SET(req->protocolVersion, i);
3431 if (send_to_target(apdu) < 0)
3442 void Yaz_Proxy::pre_init()
3445 const char *name = 0;
3446 const char *zurl_in_use[MAX_ZURL_PLEX];
3447 int limit_bw, limit_pdu, limit_req, limit_search;
3448 int target_idletime, client_idletime;
3450 int keepalive_limit_bw, keepalive_limit_pdu;
3452 const char *cql2rpn = 0;
3453 const char *authentication = 0;
3454 const char *negotiation_charset = 0;
3455 const char *negotiation_lang = 0;
3457 Yaz_ProxyConfig *cfg = check_reconfigure();
3461 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3466 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3467 &limit_bw, &limit_pdu, &limit_req,
3469 &target_idletime, &client_idletime,
3471 &keepalive_limit_bw,
3472 &keepalive_limit_pdu,
3476 &negotiation_charset,
3484 for (j = 0; zurl_in_use[j]; j++)
3488 int spare_waiting = 0;
3491 for (c = m_clientPool; c; c = c->m_next)
3493 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3495 if (c->m_cookie == 0)
3497 if (c->m_server == 0)
3509 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3510 "sparew=%d preinit=%d",m_session_str,
3511 name, zurl_in_use[j], in_use, other,
3512 spare, spare_waiting, pre_init);
3513 if (spare + spare_waiting < pre_init)
3515 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3516 c->m_next = m_clientPool;
3518 c->m_next->m_prev = &c->m_next;
3520 c->m_prev = &m_clientPool;
3522 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3523 c->set_APDU_yazlog(1);
3525 c->set_APDU_yazlog(0);
3527 if (c->client(zurl_in_use[j]))
3535 c->m_target_idletime = target_idletime;
3536 c->m_seqno = m_seqno++;
3543 void Yaz_Proxy::timeoutNotify()
3548 switch(m_timeout_mode)
3550 case timeout_normal:
3554 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3557 case timeout_reduce:
3558 timeout(m_client_idletime);
3559 m_timeout_mode = timeout_busy;
3560 gdu = m_timeout_gdu;
3562 recv_GDU_normal(gdu);
3565 assert(m_stylesheet_nprl);
3566 convert_xsl_delay();
3567 recv_GDU_more(true);
3577 void Yaz_Proxy::markInvalid()
3580 m_flag_invalid_session = 1;
3583 void Yaz_ProxyClient::timeoutNotify()
3586 m_server->inc_request_no();
3588 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3592 m_server->send_response_fail_client(get_hostname());
3594 Yaz_Proxy *proxy_root = m_root;
3598 proxy_root->pre_init();
3601 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3602 Yaz_Proxy *parent) :
3603 Z_Assoc (the_PDU_Observable)
3610 m_last_resultSetId = 0;
3611 m_last_resultCount = 0;
3615 m_init_odr = odr_createmem (ODR_DECODE);
3617 m_initResponse_options = 0;
3618 m_initResponse_version = 0;
3619 m_initResponse_preferredMessageSize = 0;
3620 m_initResponse_maximumRecordSize = 0;
3621 m_resultSetStartPoint = 0;
3622 m_bytes_sent = m_bytes_recv = 0;
3626 m_target_idletime = 600;
3628 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3629 m_idAuthentication_ber_buf = 0;
3630 m_idAuthentication_ber_size = 0;
3633 const char *Yaz_Proxy::option(const char *name, const char *value)
3635 if (!strcmp (name, "optimize")) {
3638 m_optimize = xstrdup (value);
3645 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3650 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3652 if (apdu->which == Z_GDU_Z3950)
3653 recv_Z_PDU(apdu->u.z3950, len);
3654 else if (apdu->which == Z_GDU_HTTP_Response)
3655 recv_HTTP_response(apdu->u.HTTP_Response, len);
3660 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3662 if (!m_flag_invalid_session)
3664 m_flag_invalid_session = 0;
3665 handle_incoming_Z_PDU(m_apdu_invalid_session);
3666 assert (m_mem_invalid_session);
3667 nmem_destroy(m_mem_invalid_session);
3668 m_mem_invalid_session = 0;
3672 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3674 m_bytes_recv += len;
3678 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3679 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3680 apdu_name(apdu), get_hostname(), len);
3681 if (apdu->which == Z_APDU_initResponse)
3683 if (!m_server) // if this is a pre init session , check for more
3685 NMEM nmem = odr_extract_mem (odr_decode());
3686 odr_reset (m_init_odr);
3687 nmem_transfer (m_init_odr->mem, nmem);
3688 m_initResponse = apdu;
3689 m_initResponse_options = apdu->u.initResponse->options;
3690 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3691 m_initResponse_preferredMessageSize =
3692 *apdu->u.initResponse->preferredMessageSize;
3693 m_initResponse_maximumRecordSize =
3694 *apdu->u.initResponse->maximumRecordSize;
3696 Z_InitResponse *ir = apdu->u.initResponse;
3698 // apply YAZ Proxy version
3699 char *imv0 = ir->implementationVersion;
3700 char *imv1 = (char*)
3701 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3706 strcat(imv1, "/" VERSION);
3708 ir->implementationVersion = imv1;
3710 // apply YAZ Proxy implementation name
3711 char *im0 = ir->implementationName;
3713 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3720 strcat(im1, "(YAZ Proxy)");
3721 ir->implementationName = im1;
3723 nmem_destroy (nmem);
3725 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3728 if (apdu->which == Z_APDU_searchResponse)
3730 Z_SearchResponse *sr = apdu->u.searchResponse;
3731 m_last_resultCount = *sr->resultCount;
3732 int status = *sr->searchStatus;
3733 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3737 if (sr->records && sr->records->which == Z_Records_DBOSD)
3739 m_cache.add(odr_decode(),
3740 sr->records->u.databaseOrSurDiagnostics, 1,
3745 if (apdu->which == Z_APDU_presentResponse)
3747 Z_PresentResponse *pr = apdu->u.presentResponse;
3751 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3752 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3753 sr->referenceId = pr->referenceId;
3754 *sr->resultCount = m_last_resultCount;
3755 sr->records = pr->records;
3756 sr->nextResultSetPosition = pr->nextResultSetPosition;
3757 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3761 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3763 m_cache.add(odr_decode(),
3764 pr->records->u.databaseOrSurDiagnostics,
3765 m_resultSetStartPoint, -1);
3766 m_resultSetStartPoint = 0;
3770 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3772 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3775 server->send_to_client(apdu);
3776 if (apdu->which == Z_APDU_close)
3779 server->recv_GDU_more(true);
3782 void Yaz_Proxy::low_socket_close()
3787 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3788 if (m_lo_fd[i] >= 0)
3789 ::close(m_lo_fd[i]);
3793 void Yaz_Proxy::low_socket_open()
3798 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3799 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3803 int Yaz_Proxy::server(const char *addr)
3805 int r = Z_Assoc::server(addr);
3808 yaz_log(YLOG_LOG, "%sStarted proxy "
3812 " on %s", m_session_str, addr);
3818 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3820 const char *base64_chars =
3821 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3822 int len = strlen(base64);
3826 for (int pos = 0; pos <= len; pos++)
3828 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3831 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3834 char ch = (char) (ch_ptr - base64_chars);
3838 buf[buf_pos] = ch << 2;
3841 buf[buf_pos++] += (ch & 0x30) >> 4;
3842 buf[buf_pos] = (ch & 0x0f) << 4;
3845 buf[buf_pos++] += (ch & 0x3c) >> 2;
3846 buf[buf_pos] = (ch & 0x03) << 6;
3849 buf[buf_pos++] += ch;
3856 buf[buf_pos] = '\0';
3862 * indent-tabs-mode: nil
3864 * vim: shiftwidth=4 tabstop=8 expandtab