1 /* $Id: yaz-proxy.cpp,v 1.46 2006-03-30 11:59:34 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 Auth_Msg : public IMsg_Thread {
68 IMsg_Thread *handle();
80 m_nmem = nmem_create();
88 IMsg_Thread *Auth_Msg::handle()
90 ODR decode = odr_createmem(ODR_DECODE);
93 odr_setbuf(decode, m_apdu_buf, m_apdu_len, 0);
94 int r = z_APDU(decode, &apdu, 0, 0);
97 yaz_log(YLOG_WARN, "decode failed in Auth_Msg::handle");
101 m_ret = m_proxy->handle_authentication(apdu);
107 void Auth_Msg::result()
109 if (m_proxy->dec_ref(false))
111 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
115 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
117 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
119 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
120 m_proxy->result_authentication(apdu, m_ret);
127 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
129 if (apdu == 0 || ret == 0)
131 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
132 *apdu_reject->u.initResponse->result = 0;
133 send_to_client(apdu_reject);
138 if (apdu->which == Z_APDU_initRequest)
140 Yaz_ProxyConfig *cfg = check_reconfigure();
142 cfg->target_authentication(m_default_target, odr_encode(),
143 apdu->u.initRequest);
145 handle_incoming_Z_PDU_2(apdu);
149 static const char *apdu_name(Z_APDU *apdu)
153 case Z_APDU_initRequest:
154 return "initRequest";
155 case Z_APDU_initResponse:
156 return "initResponse";
157 case Z_APDU_searchRequest:
158 return "searchRequest";
159 case Z_APDU_searchResponse:
160 return "searchResponse";
161 case Z_APDU_presentRequest:
162 return "presentRequest";
163 case Z_APDU_presentResponse:
164 return "presentResponse";
165 case Z_APDU_deleteResultSetRequest:
166 return "deleteResultSetRequest";
167 case Z_APDU_deleteResultSetResponse:
168 return "deleteResultSetResponse";
169 case Z_APDU_scanRequest:
170 return "scanRequest";
171 case Z_APDU_scanResponse:
172 return "scanResponse";
173 case Z_APDU_sortRequest:
174 return "sortRequest";
175 case Z_APDU_sortResponse:
176 return "sortResponse";
177 case Z_APDU_extendedServicesRequest:
178 return "extendedServicesRequest";
179 case Z_APDU_extendedServicesResponse:
180 return "extendedServicesResponse";
187 static const char *gdu_name(Z_GDU *gdu)
192 return apdu_name(gdu->u.z3950);
193 case Z_GDU_HTTP_Request:
194 return "HTTP Request";
195 case Z_GDU_HTTP_Response:
196 return "HTTP Response";
198 return "Unknown request/response";
201 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
202 ISocketObservable *the_socket_observable,
205 Z_Assoc(the_PDU_Observable), m_bw_stat(60), m_pdu_stat(60)
207 m_PDU_Observable = the_PDU_Observable;
208 m_socket_observable = the_socket_observable;
213 m_keepalive_limit_bw = 500000;
214 m_keepalive_limit_pdu = 1000;
216 m_default_target = 0;
217 m_proxy_negotiation_charset = 0;
218 m_proxy_negotiation_lang = 0;
219 m_proxy_negotiation_default_charset = 0;
220 m_charset_converter = new Yaz_CharsetConverter;
224 m_client_idletime = 600;
225 m_target_idletime = 600;
226 m_optimize = xstrdup ("1");
227 strcpy(m_session_str, "0 ");
235 m_timeout_mode = timeout_normal;
237 m_max_record_retrieve = 0;
241 m_flag_invalid_session = 0;
243 m_referenceId_mem = nmem_create();
245 m_marcxml_mode = none;
246 m_stylesheet_xsp = 0;
247 m_stylesheet_nprl = 0;
248 m_stylesheet_apdu = 0;
249 m_s2z_stylesheet = 0;
253 m_backend_charset = 0;
255 m_initRequest_apdu = 0;
256 m_initRequest_mem = 0;
257 m_initRequest_preferredMessageSize = 0;
258 m_initRequest_maximumRecordSize = 0;
259 m_initRequest_options = 0;
260 m_initRequest_version = 0;
261 m_initRequest_oi_negotiation_charsets = 0;
262 m_initRequest_oi_negotiation_num_charsets = 0;
263 m_initRequest_oi_negotiation_langs = 0;
264 m_initRequest_oi_negotiation_num_langs = 0;
265 m_initRequest_oi_negotiation_selected = 0;
266 m_apdu_invalid_session = 0;
267 m_mem_invalid_session = 0;
269 m_s2z_odr_search = 0;
271 m_s2z_search_apdu = 0;
272 m_s2z_present_apdu = 0;
273 m_http_keepalive = 0;
276 m_s2z_packing = Z_SRW_recordPacking_string;
277 #if HAVE_GETTIMEOFDAY
278 m_time_tv = xmalloc(sizeof(struct timeval));
279 struct timeval *tv = (struct timeval *) m_time_tv;
285 m_usemarcon_ini_stage1 = 0;
286 m_usemarcon_ini_stage2 = 0;
287 m_usemarcon = new Yaz_usemarcon();
292 m_main_ptr_dec = false;
296 void Yaz_Proxy::inc_ref()
301 Yaz_Proxy::~Yaz_Proxy()
303 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
304 m_bytes_sent, m_bytes_recv);
305 nmem_destroy(m_initRequest_mem);
306 nmem_destroy(m_mem_invalid_session);
307 nmem_destroy(m_referenceId_mem);
309 xfree(m_proxyTarget);
310 xfree(m_default_target);
311 xfree(m_proxy_negotiation_charset);
312 xfree(m_proxy_negotiation_lang);
313 xfree(m_proxy_negotiation_default_charset);
314 delete m_charset_converter;
318 if (m_stylesheet_xsp)
319 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
325 xfree (m_backend_type);
326 xfree (m_backend_charset);
327 xfree (m_usemarcon_ini_stage1);
328 xfree (m_usemarcon_ini_stage2);
331 odr_destroy(m_s2z_odr_init);
332 if (m_s2z_odr_search)
333 odr_destroy(m_s2z_odr_search);
341 void Yaz_Proxy::set_debug_mode(int mode)
346 int Yaz_Proxy::set_config(const char *config)
349 m_config = new Yaz_ProxyConfig();
350 xfree(m_config_fname);
351 m_config_fname = xstrdup(config);
352 int r = m_config->read_xml(config);
354 m_config->get_generic_info(&m_log_mask, &m_max_clients,
359 void Yaz_Proxy::set_default_target(const char *target)
361 xfree (m_default_target);
362 m_default_target = 0;
364 m_default_target = (char *) xstrdup (target);
367 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
368 const char *default_charset)
370 yaz_log(YLOG_LOG, "%sSet the proxy negotiation: charset to '%s', "
371 "default charset to '%s', language to '%s'", m_session_str,
372 charset?charset:"none",
373 default_charset?default_charset:"none",
375 xfree (m_proxy_negotiation_charset);
376 xfree (m_proxy_negotiation_lang);
377 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
379 m_proxy_negotiation_charset = (char *) xstrdup (charset);
381 m_proxy_negotiation_lang = (char *) xstrdup (lang);
383 m_proxy_negotiation_default_charset =
384 (char *) xstrdup (default_charset);
387 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
390 return m_parent->check_reconfigure();
392 Yaz_ProxyConfig *cfg = m_config;
395 yaz_log(YLOG_LOG, "reconfigure");
397 if (m_config_fname && cfg)
399 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
400 int r = cfg->read_xml(m_config_fname);
402 yaz_log(YLOG_WARN, "reconfigure failed");
406 cfg->get_generic_info(&m_log_mask, &m_max_clients,
411 yaz_log(YLOG_LOG, "reconfigure");
417 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
418 *the_PDU_Observable, int fd)
422 char session_str[200];
423 sprintf(session_str, "%ld:%d ", (long) time(0), m_session_no);
426 const char *peername = the_PDU_Observable->getpeername();
427 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
429 m_connect.cleanup(false);
430 m_connect.add_connect(peername);
432 int connect_total = m_connect.get_total(peername);
433 int connect_max = m_connect_max;
434 if (connect_max && connect_total > connect_max)
436 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
437 session_str, connect_total, connect_max);
440 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", session_str,
443 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
444 m_socket_observable, this);
445 new_proxy->m_config = 0;
446 new_proxy->m_config_fname = 0;
447 new_proxy->timeout(m_client_idletime);
448 new_proxy->m_target_idletime = m_target_idletime;
449 new_proxy->set_default_target(m_default_target);
450 new_proxy->m_max_clients = m_max_clients;
451 new_proxy->m_log_mask = m_log_mask;
452 new_proxy->set_APDU_log(get_APDU_log());
453 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
454 new_proxy->set_APDU_yazlog(1);
456 new_proxy->set_APDU_yazlog(0);
457 strcpy(new_proxy->m_session_str, session_str);
458 new_proxy->m_peername = xstrdup(peername);
459 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
460 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
461 // create thread object the first time we get an incoming connection
463 m_my_thread = new Msg_Thread(m_socket_observable, 1);
464 new_proxy->m_my_thread = m_my_thread;
468 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
471 Z_OtherInformationUnit *oi;
473 ent.proto = PROTO_Z3950;
474 ent.oclass = CLASS_USERINFO;
475 ent.value = (oid_value) VAL_COOKIE;
476 assert (oid_ent_to_oid (&ent, oid));
478 if (oid_ent_to_oid (&ent, oid) &&
479 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
480 oi->which == Z_OtherInfo_characterInfo)
481 return oi->information.characterInfo;
484 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
487 Z_OtherInformationUnit *oi;
489 ent.proto = PROTO_Z3950;
490 ent.oclass = CLASS_USERINFO;
491 ent.value = (oid_value) VAL_PROXY;
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 const char *Yaz_Proxy::load_balance(const char **url)
500 int zurl_in_use[MAX_ZURL_PLEX];
501 int zurl_in_spare[MAX_ZURL_PLEX];
505 for (i = 0; i<MAX_ZURL_PLEX; i++)
508 zurl_in_spare[i] = 0;
510 for (c = m_parent->m_clientPool; c; c = c->m_next)
512 for (i = 0; url[i]; i++)
513 if (!strcmp(url[i], c->get_hostname()))
516 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
520 int min_use = 100000;
521 int spare_for_min = 0;
523 const char *ret_min = 0;
524 const char *ret_spare = 0;
525 for (i = 0; url[i]; i++)
527 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
528 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
529 if (min_use > zurl_in_use[i])
532 min_use = zurl_in_use[i];
533 spare_for_min = zurl_in_spare[i];
535 if (max_spare < zurl_in_spare[i])
538 max_spare = zurl_in_spare[i];
544 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
545 const char *proxy_host)
548 Yaz_Proxy *parent = m_parent;
549 Yaz_ProxyClient *c = m_client;
553 const char *url[MAX_ZURL_PLEX];
554 Yaz_ProxyConfig *cfg = check_reconfigure();
557 if (parent && parent->m_debug_mode)
559 // only to be enabled for debugging...
560 if (!strcmp(proxy_host, "stop"))
563 xfree(m_default_target);
564 m_default_target = xstrdup(proxy_host);
566 proxy_host = m_default_target;
567 int client_idletime = -1;
568 const char *cql2rpn_fname = 0;
569 const char *negotiation_charset = 0;
570 const char *negotiation_lang = 0;
571 const char *query_charset = 0;
572 const char *default_client_query_charset = 0;
573 url[0] = m_default_target;
578 cfg->get_target_info(proxy_host, url, &m_bw_max,
579 &m_pdu_max, &m_max_record_retrieve,
581 &m_target_idletime, &client_idletime,
582 &parent->m_max_clients,
583 &m_keepalive_limit_bw,
584 &m_keepalive_limit_pdu,
587 &negotiation_charset,
590 &default_client_query_charset);
592 if (client_idletime != -1)
594 m_client_idletime = client_idletime;
595 timeout(m_client_idletime);
598 m_cql2rpn.set_pqf_file(cql2rpn_fname);
599 if (negotiation_charset || negotiation_lang || default_client_query_charset)
601 set_proxy_negotiation(negotiation_charset,
602 negotiation_lang, default_client_query_charset);
604 m_charset_converter->set_target_query_charset(query_charset);
607 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
610 // we don't handle multiplexing for cookie session, so we just
611 // pick the first one in this case (anonymous users will be able
612 // to use any backend)
613 if (cookie && *cookie)
614 m_proxyTarget = (char*) xstrdup(url[0]);
616 m_proxyTarget = (char*) xstrdup(load_balance(url));
618 if (cookie && *cookie)
619 { // search in sessions with a cookie
620 for (c = parent->m_clientPool; c; c = c->m_next)
623 assert (*c->m_prev == c);
624 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
625 !strcmp(m_proxyTarget, c->get_hostname()))
628 // The following handles "cancel"
629 // If connection is busy (waiting for PDU) and
630 // we have an initRequest we can safely do re-open
631 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
633 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
640 c->m_last_resultCount = 0;
641 c->m_sr_transform = 0;
643 c->m_resultSetStartPoint = 0;
644 c->m_target_idletime = m_target_idletime;
645 if (c->client(m_proxyTarget))
652 c->m_seqno = parent->m_seqno;
653 if (c->m_server && c->m_server != this)
654 c->m_server->m_client = 0;
657 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
662 else if (!c && apdu->which == Z_APDU_initRequest )
664 // anonymous sessions without cookie.
665 // if authentication is set it is NOT anonymous se we can't share them.
666 // If charset and lang negotiation is use it is NOT anonymous session too.
667 for (c = parent->m_clientPool; c; c = c->m_next)
670 assert(*c->m_prev == c);
671 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
672 && c->compare_idAuthentication(apdu)
673 && c->compare_charset(apdu)
674 && !strcmp(m_proxyTarget, c->get_hostname()))
677 yaz_log (YLOG_LOG, "%sREUSE %d %s",
678 m_session_str, parent->m_seqno, c->get_hostname());
680 c->m_seqno = parent->m_seqno;
681 assert(c->m_server == 0);
684 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
685 c->set_APDU_yazlog(1);
687 c->set_APDU_yazlog(0);
699 if (apdu->which != Z_APDU_initRequest)
701 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
704 // go through list of clients - and find the lowest/oldest one.
705 Yaz_ProxyClient *c_min = 0;
707 int no_of_clients = 0;
708 if (parent->m_clientPool)
709 yaz_log (YLOG_DEBUG, "Existing sessions");
710 for (c = parent->m_clientPool; c; c = c->m_next)
712 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
713 c->m_waiting, c->get_hostname(),
714 c->m_cookie ? c->m_cookie : "");
716 if (min_seq < 0 || c->m_seqno < min_seq)
718 min_seq = c->m_seqno;
722 if (no_of_clients >= parent->m_max_clients)
725 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
727 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
728 m_session_str, parent->m_max_clients, c->m_seqno);
729 if (c->m_server && c->m_server != this)
730 delete c->m_server; // PROBLEM: m_ref_count!
735 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
736 m_session_str, parent->m_max_clients,
737 c->m_seqno, parent->m_seqno, c->get_hostname());
741 c->m_cookie = xstrdup(cookie);
742 c->m_seqno = parent->m_seqno;
743 if (c->m_server && c->m_server != this)
745 c->m_server->m_client = 0;
746 delete c->m_server; // PROBLEM: m_ref_count!
749 c->m_target_idletime = m_target_idletime;
750 c->timeout(m_target_idletime);
752 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
753 c->set_APDU_yazlog(1);
755 c->set_APDU_yazlog(0);
762 yaz_log (YLOG_LOG, "%sNEW %d %s",
763 m_session_str, parent->m_seqno, m_proxyTarget);
764 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
765 c->m_next = parent->m_clientPool;
767 c->m_next->m_prev = &c->m_next;
768 parent->m_clientPool = c;
769 c->m_prev = &parent->m_clientPool;
775 c->m_cookie = xstrdup(cookie);
777 c->m_seqno = parent->m_seqno;
779 c->m_last_resultCount = 0;
782 c->m_sr_transform = 0;
784 c->m_resultSetStartPoint = 0;
786 if (c->client(m_proxyTarget))
791 c->m_target_idletime = m_target_idletime;
794 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
795 c->set_APDU_yazlog(1);
797 c->set_APDU_yazlog(0);
799 c->set_idAuthentication(apdu);
801 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
805 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
808 for (i = 0; i<num; i++)
811 Z_DefaultDiagFormat *r;
812 Z_DiagRec *p = pp[i];
813 if (p->which != Z_DiagRec_defaultFormat)
815 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
819 r = p->u.defaultFormat;
820 if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
821 ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
822 yaz_log(YLOG_LOG, "%sError unknown diagnostic set", m_session_str);
825 case Z_DefaultDiagFormat_v2Addinfo:
826 yaz_log(YLOG_LOG, "%sError %d %s:%s",
828 *r->condition, diagbib1_str(*r->condition),
831 case Z_DefaultDiagFormat_v3Addinfo:
832 yaz_log(YLOG_LOG, "%sError %d %s:%s",
834 *r->condition, diagbib1_str(*r->condition),
841 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
843 if (!m_stylesheet_xsp || p->num_records <= 0)
845 return 0; /* no XSLT to be done ... */
848 m_stylesheet_offset = 0;
849 m_stylesheet_nprl = p;
850 m_stylesheet_apdu = apdu;
851 m_timeout_mode = timeout_xsl;
857 void Yaz_Proxy::convert_xsl_delay()
860 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
861 if (npr->which == Z_NamePlusRecord_databaseRecord)
863 Z_External *r = npr->u.databaseRecord;
864 if (r->which == Z_External_octet)
867 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
869 xmlDocPtr res, doc = xmlParseMemory(
870 (char*) r->u.octet_aligned->buf,
871 r->u.octet_aligned->len);
874 yaz_log(YLOG_LOG, "%sXSLT convert %d",
875 m_session_str, m_stylesheet_offset);
876 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
883 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
885 m_stylesheet_nprl->records[m_stylesheet_offset]->
887 z_ext_record(odr_encode(), VAL_TEXT_XML,
888 (char*) out_buf, out_len);
897 m_stylesheet_offset++;
898 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
900 m_timeout_mode = timeout_normal;
901 m_stylesheet_nprl = 0;
903 if (m_stylesheet_xsp)
904 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
906 m_stylesheet_xsp = 0;
907 timeout(m_client_idletime);
908 send_PDU_convert(m_stylesheet_apdu);
914 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
916 if (m_frontend_type != VAL_NONE)
919 for (i = 0; i < p->num_records; i++)
921 Z_NamePlusRecord *npr = p->records[i];
922 if (npr->which == Z_NamePlusRecord_databaseRecord)
924 Z_External *r = npr->u.databaseRecord;
925 if (r->which == Z_External_octet)
928 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
930 if (!m_usemarcon->m_stage1)
932 m_usemarcon->m_stage1 = new CDetails();
934 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
935 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
936 int res = m_usemarcon->m_stage1->Start();
941 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
942 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
944 if (!m_usemarcon->m_stage2)
946 m_usemarcon->m_stage2 = new CDetails();
948 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
949 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
950 res = m_usemarcon->m_stage2->Start();
954 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
958 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
961 npr->u.databaseRecord =
962 z_ext_record(odr_encode(),
970 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
976 npr->u.databaseRecord =
977 z_ext_record(odr_encode(),
979 (char*) r->u.octet_aligned->buf,
980 r->u.octet_aligned->len);
987 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
988 const char *backend_charset)
990 yaz_log(YLOG_LOG, "%sconvert_to_marc", m_session_str);
991 int sel = m_charset_converter->get_client_charset_selected();
992 const char *client_record_charset =
993 m_charset_converter->get_client_query_charset();
994 if (sel && backend_charset && client_record_charset &&
995 strcmp(backend_charset, client_record_charset))
998 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1000 yaz_marc_t mt = yaz_marc_create();
1001 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1002 yaz_marc_iconv(mt, cd);
1003 for (i = 0; i < p->num_records; i++)
1005 Z_NamePlusRecord *npr = p->records[i];
1006 if (npr->which == Z_NamePlusRecord_databaseRecord)
1008 Z_External *r = npr->u.databaseRecord;
1009 oident *ent = oid_getentbyoid(r->direct_reference);
1010 if (!ent || ent->value == VAL_NONE)
1013 if (ent->value == VAL_SUTRS)
1015 WRBUF w = wrbuf_alloc();
1017 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1018 r->u.octet_aligned->len);
1019 npr->u.databaseRecord =
1020 z_ext_record(odr_encode(), ent->value, wrbuf_buf(w),
1024 else if (ent->value == VAL_TEXT_XML)
1028 else if (r->which == Z_External_octet)
1032 if (yaz_marc_decode_buf(mt,
1033 (char*) r->u.octet_aligned->buf,
1034 r->u.octet_aligned->len,
1037 npr->u.databaseRecord =
1038 z_ext_record(odr_encode(), ent->value, result, rlen);
1039 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1046 yaz_iconv_close(cd);
1047 yaz_marc_destroy(mt);
1051 yaz_log(YLOG_LOG, "%sSkipping marc convert", m_session_str);
1055 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1056 const char *backend_charset)
1059 if (!backend_charset)
1060 backend_charset = "MARC-8";
1061 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1062 yaz_marc_t mt = yaz_marc_create();
1063 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1064 yaz_marc_iconv(mt, cd);
1065 for (i = 0; i < p->num_records; i++)
1067 Z_NamePlusRecord *npr = p->records[i];
1068 if (npr->which == Z_NamePlusRecord_databaseRecord)
1070 Z_External *r = npr->u.databaseRecord;
1071 if (r->which == Z_External_OPAC)
1073 WRBUF w = wrbuf_alloc();
1075 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1076 npr->u.databaseRecord = z_ext_record(
1077 odr_encode(), VAL_TEXT_XML,
1078 wrbuf_buf(w), wrbuf_len(w)
1082 else if (r->which == Z_External_octet)
1086 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1087 r->u.octet_aligned->len,
1090 npr->u.databaseRecord =
1091 z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen);
1097 yaz_iconv_close(cd);
1098 yaz_marc_destroy(mt);
1101 void Yaz_Proxy::logtime()
1103 #if HAVE_GETTIMEOFDAY
1104 struct timeval *tv = (struct timeval*) m_time_tv;
1108 gettimeofday(&tv1, 0);
1109 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1110 (tv1.tv_usec - tv->tv_usec);
1112 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1113 diff/1000000, (diff/1000)%1000);
1120 int Yaz_Proxy::send_http_response(int code)
1122 ODR o = odr_encode();
1123 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1124 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1126 hres->version = odr_strdup(o, m_http_version);
1127 if (m_http_keepalive)
1128 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1132 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1134 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1138 int r = send_GDU(gdu, &len);
1139 m_bytes_sent += len;
1140 m_bw_stat.add_bytes(len);
1143 recv_GDU_more(true);
1148 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1150 ODR o = odr_encode();
1151 const char *ctype = "text/xml";
1152 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1153 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1155 hres->version = odr_strdup(o, m_http_version);
1156 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1157 if (m_http_keepalive)
1158 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1161 if (http_code == 401)
1162 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1164 static Z_SOAP_Handler soap_handlers[2] = {
1166 {"http://www.loc.gov/zing/srw/", 0,
1167 (Z_SOAP_fun) yaz_srw_codec},
1172 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1173 soap_package->which = Z_SOAP_generic;
1174 soap_package->u.generic =
1175 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1176 soap_package->u.generic->no = 0;
1177 soap_package->u.generic->ns = soap_handlers[0].ns;
1178 soap_package->u.generic->p = (void *) srw_pdu;
1179 soap_package->ns = m_soap_ns;
1180 z_soap_codec_enc_xsl(o, &soap_package,
1181 &hres->content_buf, &hres->content_len,
1182 soap_handlers, 0, m_s2z_stylesheet);
1183 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1185 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1189 int r = send_GDU(gdu, &len);
1190 m_bytes_sent += len;
1191 m_bw_stat.add_bytes(len);
1194 recv_GDU_more(true);
1199 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1201 ODR o = odr_encode();
1202 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1203 odr_malloc(o, sizeof(*diagnostic));
1204 int num_diagnostic = 1;
1205 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1206 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1209 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1210 Z_DefaultDiagFormat *ddf)
1212 int bib1_code = *ddf->condition;
1213 if (bib1_code == 109)
1215 srw_res->num_diagnostics = 1;
1216 srw_res->diagnostics = (Z_SRW_diagnostic *)
1217 odr_malloc(o, sizeof(*srw_res->diagnostics));
1218 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1219 yaz_diag_bib1_to_srw(*ddf->condition),
1224 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1226 ODR o = odr_encode();
1227 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1228 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1230 srw_res->numberOfRecords = odr_intdup (o, hits);
1231 if (records && records->which == Z_Records_DBOSD)
1233 srw_res->num_records =
1234 records->u.databaseOrSurDiagnostics->num_records;
1236 srw_res->records = (Z_SRW_record *)
1237 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1238 for (i = 0; i < srw_res->num_records; i++)
1240 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1241 if (npr->which != Z_NamePlusRecord_databaseRecord)
1243 srw_res->records[i].recordSchema = "diagnostic";
1244 srw_res->records[i].recordPacking = m_s2z_packing;
1245 srw_res->records[i].recordData_buf = "67";
1246 srw_res->records[i].recordData_len = 2;
1247 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1250 Z_External *r = npr->u.databaseRecord;
1251 oident *ent = oid_getentbyoid(r->direct_reference);
1252 if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
1254 srw_res->records[i].recordSchema = m_schema;
1255 srw_res->records[i].recordPacking = m_s2z_packing;
1256 srw_res->records[i].recordData_buf = (char*)
1257 r->u.octet_aligned->buf;
1258 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1259 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1263 srw_res->records[i].recordSchema = "diagnostic";
1264 srw_res->records[i].recordPacking = m_s2z_packing;
1265 srw_res->records[i].recordData_buf = "67";
1266 srw_res->records[i].recordData_len = 2;
1267 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1271 if (records && records->which == Z_Records_NSD)
1274 http_code = z_to_srw_diag(odr_encode(), srw_res,
1275 records->u.nonSurrogateDiagnostic);
1277 return send_http_response(http_code);
1279 return send_srw_response(srw_pdu);
1283 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1284 int num_diagnostics, int http_code /* = 200 */)
1286 ODR o = odr_encode();
1287 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1288 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1290 srw_res->num_diagnostics = num_diagnostics;
1291 srw_res->diagnostics = diagnostics;
1292 return send_srw_response(srw_pdu, http_code);
1295 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1296 int num_diagnostics)
1298 Yaz_ProxyConfig *cfg = check_reconfigure();
1302 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1303 m_s2z_database, &len);
1306 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1307 Z_SRW_explainResponse *er = res->u.explain_response;
1309 er->record.recordData_buf = b;
1310 er->record.recordData_len = len;
1311 er->record.recordPacking = m_s2z_packing;
1312 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1314 er->diagnostics = diagnostics;
1315 er->num_diagnostics = num_diagnostics;
1316 return send_srw_response(res);
1319 return send_http_response(404);
1322 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1326 if (apdu->which == Z_APDU_initResponse)
1328 Z_InitResponse *res = apdu->u.initResponse;
1329 if (*res->result == 0)
1331 send_to_srw_client_error(3, 0);
1333 else if (!m_s2z_search_apdu)
1335 send_srw_explain_response(0, 0);
1339 handle_incoming_Z_PDU(m_s2z_search_apdu);
1342 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1344 m_s2z_search_apdu = 0;
1345 Z_SearchResponse *res = apdu->u.searchResponse;
1346 m_s2z_hit_count = *res->resultCount;
1347 if (res->records && res->records->which == Z_Records_NSD)
1349 send_to_srw_client_ok(0, res->records, 1);
1351 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1354 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1356 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1358 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1360 *pr->numberOfRecordsRequested =
1361 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1363 handle_incoming_Z_PDU(m_s2z_present_apdu);
1367 m_s2z_present_apdu = 0;
1368 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1371 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1374 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1376 m_s2z_present_apdu = 0;
1377 Z_PresentResponse *res = apdu->u.presentResponse;
1378 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1384 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1385 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1387 int r = send_Z_PDU(apdu, &len);
1388 m_bytes_sent += len;
1389 m_bw_stat.add_bytes(len);
1396 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1398 int kill_session = 0;
1399 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1402 *new_id = m_referenceId;
1404 if (apdu->which == Z_APDU_searchResponse)
1406 Z_SearchResponse *sr = apdu->u.searchResponse;
1407 Z_Records *p = sr->records;
1408 if (p && p->which == Z_Records_NSD)
1410 Z_DiagRec dr, *dr_p = &dr;
1411 dr.which = Z_DiagRec_defaultFormat;
1412 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1414 *sr->searchStatus = 0;
1415 display_diagrecs(&dr_p, 1);
1419 if (p && p->which == Z_Records_DBOSD)
1423 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1426 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1427 if (m_marcxml_mode == marcxml)
1428 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1431 convert_records_charset(p->u.databaseOrSurDiagnostics,
1433 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1437 if (sr->resultCount)
1439 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1441 if (*sr->resultCount < 0)
1443 m_flag_invalid_session = 1;
1446 *sr->searchStatus = 0;
1448 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1449 *sr->resultCount = 0;
1454 else if (apdu->which == Z_APDU_presentResponse)
1456 Z_PresentResponse *sr = apdu->u.presentResponse;
1457 Z_Records *p = sr->records;
1458 if (p && p->which == Z_Records_NSD)
1460 Z_DiagRec dr, *dr_p = &dr;
1461 dr.which = Z_DiagRec_defaultFormat;
1462 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1463 if (*sr->presentStatus == Z_PresentStatus_success)
1464 *sr->presentStatus = Z_PresentStatus_failure;
1465 display_diagrecs(&dr_p, 1);
1467 if (p && p->which == Z_Records_DBOSD)
1471 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1474 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1475 if (m_marcxml_mode == marcxml)
1476 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1479 convert_records_charset(p->u.databaseOrSurDiagnostics,
1481 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1485 else if (apdu->which == Z_APDU_initResponse)
1487 //Get and check negotiation record
1488 //from init response.
1489 handle_charset_lang_negotiation(apdu);
1491 if (m_initRequest_options)
1494 (Odr_bitmask *)odr_malloc(odr_encode(),
1495 sizeof(Odr_bitmask));
1496 ODR_MASK_ZERO(nopt);
1499 for (i = 0; i<24; i++)
1500 if (ODR_MASK_GET(m_initRequest_options, i) &&
1501 ODR_MASK_GET(apdu->u.initResponse->options, i))
1502 ODR_MASK_SET(nopt, i);
1503 apdu->u.initResponse->options = nopt;
1505 if (m_initRequest_version)
1507 Z_ProtocolVersion *nopt =
1508 (Odr_bitmask *)odr_malloc(odr_encode(),
1509 sizeof(Odr_bitmask));
1510 ODR_MASK_ZERO(nopt);
1513 for (i = 0; i<8; i++)
1514 if (ODR_MASK_GET(m_initRequest_version, i) &&
1515 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1516 ODR_MASK_SET(nopt, i);
1517 apdu->u.initResponse->protocolVersion = nopt;
1519 apdu->u.initResponse->preferredMessageSize =
1520 odr_intdup(odr_encode(),
1521 m_client->m_initResponse_preferredMessageSize >
1522 m_initRequest_preferredMessageSize ?
1523 m_initRequest_preferredMessageSize :
1524 m_client->m_initResponse_preferredMessageSize);
1525 apdu->u.initResponse->maximumRecordSize =
1526 odr_intdup(odr_encode(),
1527 m_client->m_initResponse_maximumRecordSize >
1528 m_initRequest_maximumRecordSize ?
1529 m_initRequest_maximumRecordSize :
1530 m_client->m_initResponse_maximumRecordSize);
1533 int r = send_PDU_convert(apdu);
1540 m_parent->pre_init();
1545 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1547 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1549 odr_reset(m_idAuthentication_odr);
1550 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1551 m_idAuthentication_ber_buf =
1552 odr_getbuf(m_idAuthentication_odr,
1553 &m_idAuthentication_ber_size, 0);
1556 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1561 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1563 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1564 ODR odr = odr_createmem(ODR_ENCODE);
1566 z_IdAuthentication(odr, &t, 1, 0);
1568 char *buf = odr_getbuf(odr, &sz, 0);
1569 if (buf && m_idAuthentication_ber_buf
1570 && sz == m_idAuthentication_ber_size
1571 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1577 if (!buf && !m_idAuthentication_ber_buf)
1582 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1585 const char *apdu_name_tmp = apdu_name(apdu);
1586 int r = send_Z_PDU(apdu, &len);
1587 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1588 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1590 apdu_name_tmp, get_hostname(), len);
1591 m_bytes_sent += len;
1595 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1597 if (apdu->which == Z_APDU_presentRequest)
1599 Z_PresentRequest *pr = apdu->u.presentRequest;
1600 int toget = *pr->numberOfRecordsRequested;
1601 int start = *pr->resultSetStartPoint;
1603 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1604 pr->resultSetId, start, toget);
1606 if (*m_parent->m_optimize == '0')
1609 if (!m_client->m_last_resultSetId)
1611 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1612 new_apdu->u.presentResponse->records =
1613 create_nonSurrogateDiagnostics(odr_encode(), 30,
1615 send_to_client(new_apdu);
1618 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1620 if (start+toget-1 > m_client->m_last_resultCount)
1622 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1623 new_apdu->u.presentResponse->records =
1624 create_nonSurrogateDiagnostics(odr_encode(), 13, 0);
1625 send_to_client(new_apdu);
1628 Z_NamePlusRecordList *npr;
1630 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1631 m_session_str, start, toget, yaz_z3950oid_to_str(
1632 pr->preferredRecordSyntax, &oclass));
1634 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1635 pr->preferredRecordSyntax,
1636 pr->recordComposition))
1638 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1640 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1641 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1643 new_apdu->u.presentResponse->numberOfRecordsReturned
1644 = odr_intdup(odr_encode(), toget);
1646 new_apdu->u.presentResponse->records = (Z_Records*)
1647 odr_malloc(odr_encode(), sizeof(Z_Records));
1648 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1649 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1650 new_apdu->u.presentResponse->nextResultSetPosition =
1651 odr_intdup(odr_encode(), start+toget);
1653 send_to_client(new_apdu);
1659 if (apdu->which != Z_APDU_searchRequest)
1661 Z_SearchRequest *sr = apdu->u.searchRequest;
1662 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1663 Yaz_Z_Databases this_databases;
1665 this_databases.set(sr->num_databaseNames, (const char **)
1668 this_query->set_Z_Query(sr->query);
1670 char query_str[120];
1671 this_query->print(query_str, sizeof(query_str)-1);
1672 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1674 if (*m_parent->m_optimize != '0' &&
1675 m_client->m_last_ok && m_client->m_last_query &&
1676 m_client->m_last_query->match(this_query) &&
1677 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1678 m_client->m_last_databases.match(this_databases))
1681 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1682 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1684 Z_NamePlusRecordList *npr;
1685 int toget = *sr->mediumSetPresentNumber;
1686 Z_RecordComposition *comp = 0;
1688 if (toget > m_client->m_last_resultCount)
1689 toget = m_client->m_last_resultCount;
1691 if (sr->mediumSetElementSetNames)
1693 comp = (Z_RecordComposition *)
1694 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1695 comp->which = Z_RecordComp_simple;
1696 comp->u.simple = sr->mediumSetElementSetNames;
1699 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1700 sr->preferredRecordSyntax, comp))
1702 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1704 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1705 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1706 new_apdu->u.searchResponse->resultCount =
1707 &m_client->m_last_resultCount;
1709 new_apdu->u.searchResponse->numberOfRecordsReturned
1710 = odr_intdup(odr_encode(), toget);
1712 new_apdu->u.searchResponse->presentStatus =
1713 odr_intdup(odr_encode(), Z_PresentStatus_success);
1714 new_apdu->u.searchResponse->records = (Z_Records*)
1715 odr_malloc(odr_encode(), sizeof(Z_Records));
1716 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1717 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1718 new_apdu->u.searchResponse->nextResultSetPosition =
1719 odr_intdup(odr_encode(), toget+1);
1720 send_to_client(new_apdu);
1726 // send present request (medium size)
1727 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1730 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1731 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1732 pr->referenceId = sr->referenceId;
1733 pr->resultSetId = sr->resultSetName;
1734 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1735 *pr->numberOfRecordsRequested = toget;
1736 pr->recordComposition = comp;
1737 m_client->m_sr_transform = 1;
1741 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1742 m_client->m_last_resultCount <= 0)
1744 // large set. Return pseudo-search response immediately
1745 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1747 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1748 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1749 new_apdu->u.searchResponse->resultCount =
1750 &m_client->m_last_resultCount;
1751 send_to_client(new_apdu);
1756 Z_NamePlusRecordList *npr;
1757 int toget = m_client->m_last_resultCount;
1758 Z_RecordComposition *comp = 0;
1760 // send a present request (small set)
1762 if (sr->smallSetElementSetNames)
1764 comp = (Z_RecordComposition *)
1765 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1766 comp->which = Z_RecordComp_simple;
1767 comp->u.simple = sr->smallSetElementSetNames;
1770 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1771 sr->preferredRecordSyntax, comp))
1773 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1775 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1776 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1777 new_apdu->u.searchResponse->resultCount =
1778 &m_client->m_last_resultCount;
1780 new_apdu->u.searchResponse->numberOfRecordsReturned
1781 = odr_intdup(odr_encode(), toget);
1783 new_apdu->u.searchResponse->presentStatus =
1784 odr_intdup(odr_encode(), Z_PresentStatus_success);
1785 new_apdu->u.searchResponse->records = (Z_Records*)
1786 odr_malloc(odr_encode(), sizeof(Z_Records));
1787 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1788 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1789 new_apdu->u.searchResponse->nextResultSetPosition =
1790 odr_intdup(odr_encode(), toget+1);
1791 send_to_client(new_apdu);
1796 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1798 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1799 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1800 pr->referenceId = sr->referenceId;
1801 pr->resultSetId = sr->resultSetName;
1802 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1803 *pr->numberOfRecordsRequested = toget;
1804 pr->recordComposition = comp;
1805 m_client->m_sr_transform = 1;
1810 else // query doesn't match
1812 delete m_client->m_last_query;
1813 m_client->m_last_query = this_query;
1814 m_client->m_last_ok = 0;
1815 m_client->m_cache.clear();
1816 m_client->m_resultSetStartPoint = 0;
1818 xfree (m_client->m_last_resultSetId);
1819 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1821 m_client->m_last_databases.set(sr->num_databaseNames,
1822 (const char **) sr->databaseNames);
1828 void Yaz_Proxy::inc_request_no()
1830 char *cp = strchr(m_session_str, ' ');
1833 sprintf(cp+1, "%d ", m_request_no);
1836 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1840 m_bytes_recv += len;
1842 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1843 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1844 m_session_str, gdu_name(apdu), len);
1846 #if HAVE_GETTIMEOFDAY
1847 gettimeofday((struct timeval *) m_time_tv, 0);
1849 m_bw_stat.add_bytes(len);
1850 m_pdu_stat.add_bytes(1);
1852 GDU *gdu = new GDU(apdu);
1853 m_in_queue.enqueue(gdu);
1855 recv_GDU_more(false);
1858 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1862 int bw_total = m_bw_stat.get_total();
1863 int pdu_total = m_pdu_stat.get_total();
1865 assert(m_timeout_mode == timeout_busy);
1866 assert(m_timeout_gdu == 0);
1870 if (bw_total > m_bw_max)
1872 reduce = (bw_total/m_bw_max);
1877 if (pdu_total > m_pdu_max)
1879 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
1880 reduce = (reduce > nreduce) ? reduce : nreduce;
1886 /* uncomment to force a big reduce */
1887 m_timeout_mode = timeout_reduce;
1888 m_timeout_gdu = gdu;
1889 timeout(3); // call us reduce seconds later
1894 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d limit-bw=%d limit-pdu=%d",
1895 m_session_str, reduce, bw_total, pdu_total,
1896 m_bw_max, m_pdu_max);
1898 m_timeout_mode = timeout_reduce;
1899 m_timeout_gdu = gdu;
1900 timeout(reduce); // call us reduce seconds later
1903 recv_GDU_normal(gdu);
1906 void Yaz_Proxy::recv_GDU_more(bool normal)
1909 if (normal && m_timeout_mode == timeout_busy)
1910 m_timeout_mode = timeout_normal;
1911 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
1913 m_timeout_mode = timeout_busy;
1918 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
1921 gdu->move_away_gdu(odr_decode(), &apdu);
1924 if (apdu->which == Z_GDU_Z3950)
1925 handle_incoming_Z_PDU(apdu->u.z3950);
1926 else if (apdu->which == Z_GDU_HTTP_Request)
1927 handle_incoming_HTTP(apdu->u.HTTP_Request);
1930 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
1932 if (m_max_record_retrieve)
1934 if (apdu->which == Z_APDU_presentRequest)
1936 Z_PresentRequest *pr = apdu->u.presentRequest;
1937 if (pr->numberOfRecordsRequested &&
1938 *pr->numberOfRecordsRequested > m_max_record_retrieve)
1939 *pr->numberOfRecordsRequested = m_max_record_retrieve;
1944 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
1946 if (apdu->which == Z_APDU_initRequest)
1948 if (m_initRequest_options &&
1949 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
1950 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
1952 // There is no negotiation proposal from
1953 // client's side. OK. The proxy negotiation
1955 Z_InitRequest *initRequest = apdu->u.initRequest;
1956 Z_OtherInformation **otherInfo;
1957 Z_OtherInformationUnit *oi;
1958 get_otherInfoAPDU(apdu, &otherInfo);
1959 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
1962 ODR_MASK_SET(initRequest->options,
1963 Z_Options_negotiationModel);
1964 oi->which = Z_OtherInfo_externallyDefinedInfo;
1965 oi->information.externallyDefinedInfo =
1966 yaz_set_proposal_charneg(odr_encode(),
1967 (const char**)&m_proxy_negotiation_charset,
1968 m_proxy_negotiation_charset ? 1:0,
1969 (const char**)&m_proxy_negotiation_lang,
1970 m_proxy_negotiation_lang ? 1:0,
1974 else if (m_initRequest_options &&
1975 ODR_MASK_GET(m_initRequest_options,
1976 Z_Options_negotiationModel) &&
1977 m_charset_converter->get_target_query_charset())
1979 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
1981 m_charset_converter->get_target_query_charset());
1982 Z_InitRequest *initRequest = apdu->u.initRequest;
1983 Z_CharSetandLanguageNegotiation *negotiation =
1984 yaz_get_charneg_record (initRequest->otherInfo);
1986 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1988 NMEM nmem = nmem_create();
1989 char **charsets = 0;
1990 int num_charsets = 0;
1994 yaz_get_proposal_charneg (nmem, negotiation,
1995 &charsets, &num_charsets,
1996 &langs, &num_langs, &selected);
1998 for (i = 0; i<num_charsets; i++)
1999 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2001 for (i = 0; i<num_langs; i++)
2002 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2005 const char *t_charset =
2006 m_charset_converter->get_target_query_charset();
2007 // sweep through charsets and pick the first supported
2009 for (i = 0; i<num_charsets; i++)
2011 const char *c_charset = charsets[i];
2012 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2015 if (i != num_charsets)
2017 // got one .. set up ODR for reverse direction
2018 const char *c_charset = charsets[i];
2019 odr_set_charset(odr_encode(), c_charset, t_charset);
2020 m_charset_converter->set_client_query_charset(c_charset);
2021 m_charset_converter->set_client_charset_selected(selected);
2024 ODR_MASK_CLEAR(m_initRequest_options,
2025 Z_Options_negotiationModel);
2026 yaz_del_charneg_record(&initRequest->otherInfo);
2030 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2034 else if (m_charset_converter->get_target_query_charset() &&
2035 m_proxy_negotiation_default_charset)
2037 m_charset_converter->
2038 set_client_query_charset(m_proxy_negotiation_default_charset);
2041 else if (apdu->which == Z_APDU_initResponse)
2043 Z_InitResponse *initResponse = apdu->u.initResponse;
2044 Z_OtherInformation **otherInfo;
2045 get_otherInfoAPDU(apdu, &otherInfo);
2047 Z_CharSetandLanguageNegotiation *charneg = 0;
2049 if (otherInfo && *otherInfo &&
2050 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2051 && (charneg = yaz_get_charneg_record(*otherInfo)))
2057 yaz_get_response_charneg(m_referenceId_mem, charneg,
2058 &charset, &lang, &selected);
2060 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2061 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2063 if (m_initRequest_options &&
2064 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2066 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2069 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2071 // negotiation-charset, negotiation-lang
2072 // elements of config file in use.
2074 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2077 // clear negotiation option.
2078 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2080 // Delete negotiation (charneg-3) entry.
2081 yaz_del_charneg_record(otherInfo);
2086 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2088 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2091 else if (m_charset_converter->get_client_query_charset())
2093 Z_OtherInformation **otherInfo;
2094 Z_OtherInformationUnit *oi;
2095 get_otherInfoAPDU(apdu, &otherInfo);
2096 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2099 ODR_MASK_SET(initResponse->options,
2100 Z_Options_negotiationModel);
2101 if (m_initRequest_options)
2102 ODR_MASK_SET(m_initRequest_options,
2103 Z_Options_negotiationModel);
2105 oi->which = Z_OtherInfo_externallyDefinedInfo;
2106 oi->information.externallyDefinedInfo =
2107 yaz_set_response_charneg(
2109 m_charset_converter->get_client_query_charset(),
2111 m_charset_converter->get_client_charset_selected());
2118 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2120 const char *addinfo)
2122 Z_Records *rec = (Z_Records *)
2123 odr_malloc (odr, sizeof(*rec));
2125 odr_malloc (odr, sizeof(*err));
2126 Z_DiagRec *drec = (Z_DiagRec *)
2127 odr_malloc (odr, sizeof(*drec));
2128 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2129 odr_malloc (odr, sizeof(*dr));
2131 rec->which = Z_Records_NSD;
2132 rec->u.nonSurrogateDiagnostic = dr;
2133 dr->diagnosticSetId =
2134 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
2135 dr->condition = err;
2136 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2137 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2141 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2143 if (apdu->which == Z_APDU_searchRequest &&
2144 apdu->u.searchRequest->query &&
2145 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2146 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2148 Z_RPNQuery *rpnquery = 0;
2149 Z_SearchRequest *sr = apdu->u.searchRequest;
2152 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2153 sr->query->u.type_104->u.cql);
2155 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2156 &rpnquery, odr_encode(),
2159 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2162 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2163 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2165 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2166 new_apdu->u.searchResponse->records =
2167 create_nonSurrogateDiagnostics(odr_encode(),
2168 yaz_diag_srw_to_bib1(r),
2170 *new_apdu->u.searchResponse->searchStatus = 0;
2172 send_to_client(new_apdu);
2178 sr->query->which = Z_Query_type_1;
2179 sr->query->u.type_1 = rpnquery;
2186 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2188 if (apdu->which == Z_APDU_searchRequest &&
2189 apdu->u.searchRequest->query)
2191 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2192 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2195 m_charset_converter->set_client_query_charset("UTF-8");
2196 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2197 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2204 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2206 if (apdu->which == Z_APDU_searchRequest)
2208 Z_SearchRequest *sr = apdu->u.searchRequest;
2212 Yaz_ProxyConfig *cfg = check_reconfigure();
2214 err = cfg->check_query(odr_encode(), m_default_target,
2215 sr->query, &addinfo);
2218 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2220 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2221 new_apdu->u.searchResponse->records =
2222 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2223 *new_apdu->u.searchResponse->searchStatus = 0;
2225 send_to_client(new_apdu);
2233 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2235 if (apdu->which != Z_APDU_initRequest)
2236 return 1; // pass if no init request
2237 Z_InitRequest *req = apdu->u.initRequest;
2239 Yaz_ProxyConfig *cfg = check_reconfigure();
2241 return 1; // pass if no config
2244 if (req->idAuthentication == 0)
2246 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2249 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2251 ret = cfg->client_authentication(
2253 req->idAuthentication->u.idPass->userId,
2254 req->idAuthentication->u.idPass->groupId,
2255 req->idAuthentication->u.idPass->password,
2258 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2260 char user[64], pass[64];
2263 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2264 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2268 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2273 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2275 m_marcxml_mode = none;
2276 if (apdu->which == Z_APDU_searchRequest)
2278 Z_SearchRequest *sr = apdu->u.searchRequest;
2281 Yaz_ProxyConfig *cfg = check_reconfigure();
2283 Z_RecordComposition rc_temp, *rc = 0;
2284 if (sr->smallSetElementSetNames)
2286 rc_temp.which = Z_RecordComp_simple;
2287 rc_temp.u.simple = sr->smallSetElementSetNames;
2291 if (sr->preferredRecordSyntax)
2294 ent = oid_getentbyoid(sr->preferredRecordSyntax);
2295 m_frontend_type = ent->value;
2298 m_frontend_type = VAL_NONE;
2300 char *stylesheet_name = 0;
2302 err = cfg->check_syntax(odr_encode(),
2304 sr->preferredRecordSyntax, rc,
2305 &addinfo, &stylesheet_name, &m_schema,
2306 &m_backend_type, &m_backend_charset,
2307 &m_usemarcon_ini_stage1,
2308 &m_usemarcon_ini_stage2);
2309 if (stylesheet_name)
2311 m_parent->low_socket_close();
2314 if (m_stylesheet_xsp)
2315 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2316 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2319 m_stylesheet_offset = 0;
2320 xfree(stylesheet_name);
2322 m_parent->low_socket_open();
2326 sr->smallSetElementSetNames = 0;
2327 sr->mediumSetElementSetNames = 0;
2328 m_marcxml_mode = marcxml;
2332 sr->preferredRecordSyntax =
2333 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2337 sr->preferredRecordSyntax =
2338 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2343 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2345 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2346 new_apdu->u.searchResponse->records =
2347 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2348 *new_apdu->u.searchResponse->searchStatus = 0;
2350 send_to_client(new_apdu);
2354 else if (m_backend_type)
2356 sr->preferredRecordSyntax =
2357 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2360 else if (apdu->which == Z_APDU_presentRequest)
2362 Z_PresentRequest *pr = apdu->u.presentRequest;
2365 Yaz_ProxyConfig *cfg = check_reconfigure();
2367 if (pr->preferredRecordSyntax)
2370 ent = oid_getentbyoid(pr->preferredRecordSyntax);
2371 m_frontend_type = ent->value;
2374 m_frontend_type = VAL_NONE;
2376 char *stylesheet_name = 0;
2378 err = cfg->check_syntax(odr_encode(), m_default_target,
2379 pr->preferredRecordSyntax,
2380 pr->recordComposition,
2381 &addinfo, &stylesheet_name, &m_schema,
2382 &m_backend_type, &m_backend_charset,
2383 &m_usemarcon_ini_stage1,
2384 &m_usemarcon_ini_stage2
2386 if (stylesheet_name)
2388 m_parent->low_socket_close();
2391 if (m_stylesheet_xsp)
2392 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2393 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2396 m_stylesheet_offset = 0;
2397 xfree(stylesheet_name);
2399 m_parent->low_socket_open();
2403 pr->recordComposition = 0;
2404 m_marcxml_mode = marcxml;
2408 pr->preferredRecordSyntax =
2409 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN,
2413 pr->preferredRecordSyntax =
2414 yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN,
2419 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2421 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2422 new_apdu->u.presentResponse->records =
2423 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2424 *new_apdu->u.presentResponse->presentStatus =
2425 Z_PresentStatus_failure;
2427 send_to_client(new_apdu);
2431 else if (m_backend_type)
2433 pr->preferredRecordSyntax =
2434 yaz_str_to_z3950oid(odr_encode(), CLASS_RECSYN, m_backend_type);
2440 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2444 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2445 odr_malloc(o, sizeof(Z_ElementSetNames));
2446 esn->which = Z_ElementSetNames_generic;
2447 esn->u.generic = odr_strdup(o, schema);
2451 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2454 Yaz_ProxyConfig *cfg = check_reconfigure();
2456 t = cfg->get_explain_name(db, backend_db);
2458 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2465 xfree(m_default_target);
2466 m_default_target = xstrdup(t);
2470 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2473 if (strcmp(hreq->method, "GET"))
2475 if (hreq->path[0] != '/')
2477 yaz_log(YLOG_WARN, "Bad path: %s", hreq->path);
2480 const char *cp = hreq->path;
2483 if (*cp == '/' && strchr("/.", cp[1]))
2485 yaz_log(YLOG_WARN, "Bad path: %s", hreq->path);
2490 const char *fname = hreq->path+1;
2491 if (stat(fname, &sbuf))
2493 yaz_log(YLOG_WARN|YLOG_ERRNO, "%s: stat failed", fname);
2496 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2498 yaz_log(YLOG_WARN, "%s: not a regular file", fname);
2501 if (sbuf.st_size > (off_t) 1000000)
2503 yaz_log(YLOG_WARN, "%s: too large for transfer", fname);
2507 ODR o = odr_encode();
2508 Yaz_ProxyConfig *cfg = check_reconfigure();
2509 const char *ctype = cfg->check_mime_type(fname);
2510 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2511 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2513 hres->version = odr_strdup(o, m_http_version);
2514 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2515 if (m_http_keepalive)
2516 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2520 hres->content_len = sbuf.st_size;
2521 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2522 FILE *f = fopen(fname, "rb");
2525 fread(hres->content_buf, 1, hres->content_len, f);
2532 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2534 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2538 send_GDU(gdu, &len);
2539 recv_GDU_more(true);
2543 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2547 odr_destroy(m_s2z_odr_init);
2550 if (m_s2z_odr_search)
2552 odr_destroy(m_s2z_odr_search);
2553 m_s2z_odr_search = 0;
2556 m_http_keepalive = 0;
2558 if (!strcmp(hreq->version, "1.0"))
2560 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2561 if (v && !strcmp(v, "Keep-Alive"))
2562 m_http_keepalive = 1;
2564 m_http_keepalive = 0;
2565 m_http_version = "1.0";
2569 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2570 if (v && !strcmp(v, "close"))
2571 m_http_keepalive = 0;
2573 m_http_keepalive = 1;
2574 m_http_version = "1.1";
2577 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2578 char authorization_str[255];
2579 *authorization_str = '\0';
2580 if (a && strncasecmp(a, "Basic ", 6) == 0)
2581 base64_decode(a + 6, authorization_str, 254);
2583 Z_SRW_PDU *srw_pdu = 0;
2584 Z_SOAP *soap_package = 0;
2586 Z_SRW_diagnostic *diagnostic = 0;
2587 int num_diagnostic = 0;
2589 if (file_access(hreq))
2593 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2595 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2596 &charset, &diagnostic, &num_diagnostic) == 0)
2598 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2599 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2600 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2601 m_s2z_init_apdu = 0;
2602 m_s2z_search_apdu = 0;
2603 m_s2z_present_apdu = 0;
2605 m_s2z_stylesheet = 0;
2607 Z_IdAuthentication *auth = NULL;
2608 if (*authorization_str)
2610 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2611 auth->which = Z_IdAuthentication_idPass;
2612 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2613 auth->u.idPass->groupId = NULL;
2614 char *p = strchr(authorization_str, ':');
2619 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2621 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2624 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2626 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2628 const char *backend_db = srw_req->database;
2629 srw_get_client(srw_req->database, &backend_db);
2631 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2632 // recordXPath unsupported.
2633 if (srw_req->recordXPath)
2635 yaz_add_srw_diagnostic(odr_decode(),
2636 &diagnostic, &num_diagnostic,
2640 if (srw_req->sort_type != Z_SRW_sort_type_none)
2642 yaz_add_srw_diagnostic(odr_decode(),
2643 &diagnostic, &num_diagnostic,
2647 if (srw_req->stylesheet)
2649 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2651 // set packing for response records ..
2652 if (srw_req->recordPacking &&
2653 !strcmp(srw_req->recordPacking, "xml"))
2654 m_s2z_packing = Z_SRW_recordPacking_XML;
2656 m_s2z_packing = Z_SRW_recordPacking_string;
2660 Z_SRW_PDU *srw_pdu =
2661 yaz_srw_get(odr_encode(),
2662 Z_SRW_searchRetrieve_response);
2663 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2665 srw_res->diagnostics = diagnostic;
2666 srw_res->num_diagnostics = num_diagnostic;
2667 send_srw_response(srw_pdu);
2671 // prepare search PDU
2672 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2673 Z_APDU_searchRequest);
2674 Z_SearchRequest *z_searchRequest =
2675 m_s2z_search_apdu->u.searchRequest;
2677 z_searchRequest->num_databaseNames = 1;
2678 z_searchRequest->databaseNames = (char**)
2679 odr_malloc(m_s2z_odr_search, sizeof(char *));
2680 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2683 // query transformation
2684 Z_Query *query = (Z_Query *)
2685 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2686 z_searchRequest->query = query;
2688 if (srw_req->query_type == Z_SRW_query_type_cql)
2690 Z_External *ext = (Z_External *)
2691 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2692 ext->direct_reference =
2693 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2694 ext->indirect_reference = 0;
2695 ext->descriptor = 0;
2696 ext->which = Z_External_CQL;
2697 ext->u.cql = srw_req->query.cql;
2699 query->which = Z_Query_type_104;
2700 query->u.type_104 = ext;
2702 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2704 Z_RPNQuery *RPNquery;
2705 YAZ_PQF_Parser pqf_parser;
2707 pqf_parser = yaz_pqf_create ();
2709 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2710 srw_req->query.pqf);
2713 const char *pqf_msg;
2715 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2717 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2718 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2720 send_to_srw_client_error(10, 0);
2723 query->which = Z_Query_type_1;
2724 query->u.type_1 = RPNquery;
2726 yaz_pqf_destroy (pqf_parser);
2730 send_to_srw_client_error(7, "query");
2735 m_s2z_present_apdu = 0;
2737 if (srw_req->maximumRecords)
2738 max = *srw_req->maximumRecords;
2740 if (srw_req->startRecord)
2741 start = *srw_req->startRecord;
2744 // Some backend, such as Voyager doesn't honor piggyback
2745 // So we use present always (0 &&).
2746 if (0 && start <= 1) // Z39.50 piggyback
2748 *z_searchRequest->smallSetUpperBound = max;
2749 *z_searchRequest->mediumSetPresentNumber = max;
2750 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2752 z_searchRequest->preferredRecordSyntax =
2753 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2755 if (srw_req->recordSchema)
2757 z_searchRequest->smallSetElementSetNames =
2758 z_searchRequest->mediumSetElementSetNames =
2759 mk_esn_from_schema(m_s2z_odr_search,
2760 srw_req->recordSchema);
2763 else // Z39.50 present
2765 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2766 Z_APDU_presentRequest);
2767 Z_PresentRequest *z_presentRequest =
2768 m_s2z_present_apdu->u.presentRequest;
2769 *z_presentRequest->resultSetStartPoint = start;
2770 *z_presentRequest->numberOfRecordsRequested = max;
2771 z_presentRequest->preferredRecordSyntax =
2772 yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
2774 if (srw_req->recordSchema)
2776 z_presentRequest->recordComposition =
2777 (Z_RecordComposition *)
2778 odr_malloc(m_s2z_odr_search,
2779 sizeof(Z_RecordComposition));
2780 z_presentRequest->recordComposition->which =
2781 Z_RecordComp_simple;
2782 z_presentRequest->recordComposition->u.simple =
2783 mk_esn_from_schema(m_s2z_odr_search,
2784 srw_req->recordSchema);
2790 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2791 Z_APDU_initRequest);
2793 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2795 // prevent m_initRequest_apdu memory from being grabbed
2796 // in Yaz_Proxy::handle_incoming_Z_PDU
2797 m_initRequest_apdu = m_s2z_init_apdu;
2798 handle_incoming_Z_PDU(m_s2z_init_apdu);
2803 handle_incoming_Z_PDU(m_s2z_search_apdu);
2807 else if (srw_pdu->which == Z_SRW_explain_request)
2809 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2811 const char *backend_db = srw_req->database;
2812 srw_get_client(srw_req->database, &backend_db);
2814 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2817 if (srw_req->stylesheet)
2819 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2821 if (srw_req->recordPacking &&
2822 !strcmp(srw_req->recordPacking, "xml"))
2823 m_s2z_packing = Z_SRW_recordPacking_XML;
2825 m_s2z_packing = Z_SRW_recordPacking_string;
2829 send_srw_explain_response(diagnostic, num_diagnostic);
2835 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2836 Z_APDU_initRequest);
2838 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2840 // prevent m_initRequest_apdu memory from being grabbed
2841 // in Yaz_Proxy::handle_incoming_Z_PDU
2842 m_initRequest_apdu = m_s2z_init_apdu;
2843 handle_incoming_Z_PDU(m_s2z_init_apdu);
2846 send_srw_explain_response(0, 0);
2849 else if (srw_pdu->which == Z_SRW_scan_request)
2851 m_s2z_database = odr_strdup(m_s2z_odr_init,
2852 srw_pdu->u.scan_request->database);
2854 yaz_add_srw_diagnostic(odr_decode(),
2855 &diagnostic, &num_diagnostic,
2857 Z_SRW_PDU *srw_pdu =
2858 yaz_srw_get(odr_encode(),
2859 Z_SRW_scan_response);
2860 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
2862 srw_res->diagnostics = diagnostic;
2863 srw_res->num_diagnostics = num_diagnostic;
2864 send_srw_response(srw_pdu);
2871 send_to_srw_client_error(4, 0);
2874 send_http_response(400);
2877 void Yaz_Proxy::handle_init(Z_APDU *apdu)
2880 Z_OtherInformation **oi;
2881 get_otherInfoAPDU(apdu, &oi);
2883 if (apdu->u.initRequest->implementationId)
2884 yaz_log(YLOG_LOG, "%simplementationId: %s",
2885 m_session_str, apdu->u.initRequest->implementationId);
2886 if (apdu->u.initRequest->implementationName)
2887 yaz_log(YLOG_LOG, "%simplementationName: %s",
2888 m_session_str, apdu->u.initRequest->implementationName);
2889 if (apdu->u.initRequest->implementationVersion)
2890 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
2891 m_session_str, apdu->u.initRequest->implementationVersion);
2892 if (m_initRequest_apdu == 0)
2894 if (m_initRequest_mem)
2895 nmem_destroy(m_initRequest_mem);
2897 m_initRequest_apdu = apdu;
2898 m_initRequest_mem = odr_extract_mem(odr_decode());
2900 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
2901 preferredMessageSize;
2902 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
2903 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
2905 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
2907 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
2908 yaz_get_charneg_record(*oi);
2910 // Save proposal charsets and langs.
2911 if (ODR_MASK_GET(apdu->u.initRequest->options,
2912 Z_Options_negotiationModel)
2913 && charSetandLangRecord)
2916 yaz_get_proposal_charneg(m_referenceId_mem,
2917 charSetandLangRecord,
2918 &m_initRequest_oi_negotiation_charsets,
2919 &m_initRequest_oi_negotiation_num_charsets,
2920 &m_initRequest_oi_negotiation_langs,
2921 &m_initRequest_oi_negotiation_num_langs,
2922 &m_initRequest_oi_negotiation_selected);
2924 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
2926 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
2927 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
2928 m_initRequest_oi_negotiation_charsets[i]:"none");
2930 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
2932 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
2933 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
2934 m_initRequest_oi_negotiation_langs[i]:"none");
2936 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
2937 m_session_str, m_initRequest_oi_negotiation_selected);
2939 // save init options for the response..
2940 m_initRequest_options = apdu->u.initRequest->options;
2942 apdu->u.initRequest->options =
2943 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2944 sizeof(Odr_bitmask));
2945 ODR_MASK_ZERO(apdu->u.initRequest->options);
2947 for (i = 0; i<= 24; i++)
2948 ODR_MASK_SET(apdu->u.initRequest->options, i);
2949 // check negotiation option
2950 if (!ODR_MASK_GET(m_initRequest_options,
2951 Z_Options_negotiationModel))
2953 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2954 Z_Options_negotiationModel);
2956 ODR_MASK_CLEAR(apdu->u.initRequest->options,
2957 Z_Options_concurrentOperations);
2959 m_initRequest_version = apdu->u.initRequest->protocolVersion;
2960 apdu->u.initRequest->protocolVersion =
2961 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
2962 sizeof(Odr_bitmask));
2963 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
2965 for (i = 0; i<= 8; i++)
2966 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
2968 handle_charset_lang_negotiation(apdu);
2969 if (m_client->m_init_flag)
2971 if (handle_init_response_for_invalid_session(apdu))
2973 if (m_client->m_initResponse)
2975 Z_APDU *apdu2 = m_client->m_initResponse;
2976 apdu2->u.initResponse->otherInfo = 0;
2977 if (m_client->m_cookie && *m_client->m_cookie)
2978 set_otherInformationString(apdu2, VAL_COOKIE, 1,
2979 m_client->m_cookie);
2980 apdu2->u.initResponse->referenceId =
2981 apdu->u.initRequest->referenceId;
2982 apdu2->u.initResponse->options = m_client->m_initResponse_options;
2983 apdu2->u.initResponse->protocolVersion =
2984 m_client->m_initResponse_version;
2986 handle_charset_lang_negotiation(apdu2);
2988 send_to_client(apdu2);
2989 m_timeout_mode = timeout_normal;
2993 m_client->m_init_flag = 1;
2996 Auth_Msg *m = new Auth_Msg;
2998 z_APDU(odr_encode(), &apdu, 0, "encode");
2999 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3000 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3001 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3002 odr_reset(odr_encode());
3005 m_my_thread->put(m);
3007 int ret = handle_authentication(apdu);
3008 result_authentication(apdu, ret);
3012 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3014 Z_ReferenceId **refid = get_referenceIdP(apdu);
3015 nmem_reset(m_referenceId_mem);
3016 if (refid && *refid)
3018 m_referenceId = (Z_ReferenceId *)
3019 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3020 m_referenceId->len = m_referenceId->size = (*refid)->len;
3021 m_referenceId->buf = (unsigned char *)
3022 nmem_malloc(m_referenceId_mem, (*refid)->len);
3023 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3028 if (!m_client && m_flag_invalid_session)
3030 // Got request for a session that is invalid..
3031 m_apdu_invalid_session = apdu; // save package
3032 m_mem_invalid_session = odr_extract_mem(odr_decode());
3033 apdu = m_initRequest_apdu; // but throw an init to the target
3036 // Determine our client.
3037 Z_OtherInformation **oi;
3038 get_otherInfoAPDU(apdu, &oi);
3039 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3043 { // HTTP. Send not found
3044 send_http_response(404);
3049 // Z39.50 just shutdown
3055 m_client->m_server = this;
3057 if (apdu->which == Z_APDU_initRequest)
3060 handle_incoming_Z_PDU_2(apdu);
3063 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3065 handle_max_record_retrieve(apdu);
3068 apdu = handle_syntax_validation(apdu);
3071 apdu = handle_query_transformation(apdu);
3074 apdu = handle_target_charset_conversion(apdu);
3077 apdu = handle_query_validation(apdu);
3080 apdu = result_set_optimize(apdu);
3084 m_client->timeout(m_target_idletime); // mark it active even
3085 recv_GDU_more(true);
3086 // though we didn't use it
3090 // delete other info construct completely if 0 elements
3091 Z_OtherInformation **oi;
3092 get_otherInfoAPDU(apdu, &oi);
3093 if (oi && *oi && (*oi)->num_elements == 0)
3096 if (apdu->which == Z_APDU_presentRequest &&
3097 m_client->m_resultSetStartPoint == 0)
3099 Z_PresentRequest *pr = apdu->u.presentRequest;
3100 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3101 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3103 m_client->m_resultSetStartPoint = 0;
3105 if (m_client->send_to_target(apdu) < 0)
3107 m_client->shutdown();
3110 m_client->m_waiting = 1;
3113 void Yaz_Proxy::connectNotify()
3117 void Yaz_Proxy::releaseClient()
3119 xfree(m_proxyTarget);
3121 m_flag_invalid_session = 0;
3122 // only keep if keep_alive flag is set...
3124 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3125 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3126 m_client->m_waiting == 0)
3128 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3130 m_client->get_hostname());
3131 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3132 m_session_str, m_client->m_pdu_recv,
3133 m_client->m_bytes_sent + m_client->m_bytes_recv,
3134 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3135 assert (m_client->m_waiting != 2);
3136 // Tell client (if any) that no server connection is there..
3137 m_client->m_server = 0;
3142 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3144 m_client->get_hostname());
3145 assert (m_client->m_waiting != 2);
3151 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3157 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3161 m_parent->pre_init();
3164 bool Yaz_Proxy::dec_ref(bool main_ptr)
3166 assert(m_ref_count > 0);
3171 m_main_ptr_dec = true;
3174 m_http_keepalive = 0;
3177 if (m_ref_count > 0)
3186 const char *Yaz_ProxyClient::get_session_str()
3190 return m_server->get_session_str();
3193 void Yaz_ProxyClient::shutdown()
3195 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3200 m_waiting = 1; // ensure it's released from Proxy in releaseClient
3201 m_server->dec_ref(true);
3207 void Yaz_Proxy::failNotify()
3210 yaz_log (YLOG_LOG, "%sConnection closed by client",
3215 void Yaz_Proxy::send_response_fail_client(const char *addr)
3219 Z_SRW_diagnostic *diagnostic = 0;
3220 int num_diagnostic = 0;
3222 yaz_add_srw_diagnostic(odr_encode(),
3223 &diagnostic, &num_diagnostic,
3224 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3225 if (m_s2z_search_apdu)
3226 send_srw_search_response(diagnostic, num_diagnostic);
3228 send_srw_explain_response(diagnostic, num_diagnostic);
3231 void Yaz_ProxyClient::failNotify()
3234 m_server->inc_request_no();
3235 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3236 get_session_str(), get_hostname());
3239 m_server->send_response_fail_client(get_hostname());
3243 void Yaz_ProxyClient::connectNotify()
3245 const char *s = get_session_str();
3246 const char *h = get_hostname();
3247 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3249 timeout(m_target_idletime);
3254 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3255 *the_PDU_Observable, int fd)
3257 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3260 Yaz_ProxyClient::~Yaz_ProxyClient()
3265 m_next->m_prev = m_prev;
3266 m_waiting = 2; // for debugging purposes only.
3267 odr_destroy(m_init_odr);
3268 odr_destroy(m_idAuthentication_odr);
3269 delete m_last_query;
3270 xfree (m_last_resultSetId);
3274 void Yaz_ProxyClient::pre_init_client()
3276 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3277 Z_InitRequest *req = apdu->u.initRequest;
3280 for (i = 0; i<= 24; i++)
3281 ODR_MASK_SET(req->options, i);
3282 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3283 Z_Options_negotiationModel);
3284 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3285 Z_Options_concurrentOperations);
3286 for (i = 0; i<= 10; i++)
3287 ODR_MASK_SET(req->protocolVersion, i);
3289 if (send_to_target(apdu) < 0)
3300 void Yaz_Proxy::pre_init()
3303 const char *name = 0;
3304 const char *zurl_in_use[MAX_ZURL_PLEX];
3305 int limit_bw, limit_pdu, limit_req, limit_search;
3306 int target_idletime, client_idletime;
3308 int keepalive_limit_bw, keepalive_limit_pdu;
3310 const char *cql2rpn = 0;
3311 const char *authentication = 0;
3312 const char *negotiation_charset = 0;
3313 const char *negotiation_lang = 0;
3315 Yaz_ProxyConfig *cfg = check_reconfigure();
3319 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3324 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3325 &limit_bw, &limit_pdu, &limit_req,
3327 &target_idletime, &client_idletime,
3329 &keepalive_limit_bw,
3330 &keepalive_limit_pdu,
3334 &negotiation_charset,
3342 for (j = 0; zurl_in_use[j]; j++)
3346 int spare_waiting = 0;
3349 for (c = m_clientPool; c; c = c->m_next)
3351 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3353 if (c->m_cookie == 0)
3355 if (c->m_server == 0)
3367 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3368 "sparew=%d preinit=%d",m_session_str,
3369 name, zurl_in_use[j], in_use, other,
3370 spare, spare_waiting, pre_init);
3371 if (spare + spare_waiting < pre_init)
3373 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3374 c->m_next = m_clientPool;
3376 c->m_next->m_prev = &c->m_next;
3378 c->m_prev = &m_clientPool;
3380 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3381 c->set_APDU_yazlog(1);
3383 c->set_APDU_yazlog(0);
3385 if (c->client(zurl_in_use[j]))
3393 c->m_target_idletime = target_idletime;
3394 c->m_seqno = m_seqno++;
3401 void Yaz_Proxy::timeoutNotify()
3406 switch(m_timeout_mode)
3408 case timeout_normal:
3412 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3415 case timeout_reduce:
3416 timeout(m_client_idletime);
3417 m_timeout_mode = timeout_busy;
3418 gdu = m_timeout_gdu;
3420 recv_GDU_normal(gdu);
3423 assert(m_stylesheet_nprl);
3424 convert_xsl_delay();
3425 recv_GDU_more(true);
3435 void Yaz_Proxy::markInvalid()
3438 m_flag_invalid_session = 1;
3441 void Yaz_ProxyClient::timeoutNotify()
3444 m_server->inc_request_no();
3446 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3450 m_server->send_response_fail_client(get_hostname());
3456 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3457 Yaz_Proxy *parent) :
3458 Z_Assoc (the_PDU_Observable)
3465 m_last_resultSetId = 0;
3466 m_last_resultCount = 0;
3470 m_init_odr = odr_createmem (ODR_DECODE);
3472 m_initResponse_options = 0;
3473 m_initResponse_version = 0;
3474 m_initResponse_preferredMessageSize = 0;
3475 m_initResponse_maximumRecordSize = 0;
3476 m_resultSetStartPoint = 0;
3477 m_bytes_sent = m_bytes_recv = 0;
3481 m_target_idletime = 600;
3483 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3484 m_idAuthentication_ber_buf = 0;
3485 m_idAuthentication_ber_size = 0;
3488 const char *Yaz_Proxy::option(const char *name, const char *value)
3490 if (!strcmp (name, "optimize")) {
3493 m_optimize = xstrdup (value);
3500 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3505 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3507 if (apdu->which == Z_GDU_Z3950)
3508 recv_Z_PDU(apdu->u.z3950, len);
3509 else if (apdu->which == Z_GDU_HTTP_Response)
3510 recv_HTTP_response(apdu->u.HTTP_Response, len);
3515 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3517 if (!m_flag_invalid_session)
3519 m_flag_invalid_session = 0;
3520 handle_incoming_Z_PDU(m_apdu_invalid_session);
3521 assert (m_mem_invalid_session);
3522 nmem_destroy(m_mem_invalid_session);
3523 m_mem_invalid_session = 0;
3527 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3529 m_bytes_recv += len;
3533 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3534 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3535 apdu_name(apdu), get_hostname(), len);
3536 if (apdu->which == Z_APDU_initResponse)
3538 if (!m_server) // if this is a pre init session , check for more
3540 NMEM nmem = odr_extract_mem (odr_decode());
3541 odr_reset (m_init_odr);
3542 nmem_transfer (m_init_odr->mem, nmem);
3543 m_initResponse = apdu;
3544 m_initResponse_options = apdu->u.initResponse->options;
3545 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3546 m_initResponse_preferredMessageSize =
3547 *apdu->u.initResponse->preferredMessageSize;
3548 m_initResponse_maximumRecordSize =
3549 *apdu->u.initResponse->maximumRecordSize;
3551 Z_InitResponse *ir = apdu->u.initResponse;
3552 char *im0 = ir->implementationName;
3555 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3562 strcat(im1, "(YAZ Proxy)");
3563 ir->implementationName = im1;
3565 nmem_destroy (nmem);
3567 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3570 if (apdu->which == Z_APDU_searchResponse)
3572 Z_SearchResponse *sr = apdu->u.searchResponse;
3573 m_last_resultCount = *sr->resultCount;
3574 int status = *sr->searchStatus;
3575 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3579 if (sr->records && sr->records->which == Z_Records_DBOSD)
3581 m_cache.add(odr_decode(),
3582 sr->records->u.databaseOrSurDiagnostics, 1,
3587 if (apdu->which == Z_APDU_presentResponse)
3589 Z_PresentResponse *pr = apdu->u.presentResponse;
3593 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3594 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3595 sr->referenceId = pr->referenceId;
3596 *sr->resultCount = m_last_resultCount;
3597 sr->records = pr->records;
3598 sr->nextResultSetPosition = pr->nextResultSetPosition;
3599 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3603 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3605 m_cache.add(odr_decode(),
3606 pr->records->u.databaseOrSurDiagnostics,
3607 m_resultSetStartPoint, -1);
3608 m_resultSetStartPoint = 0;
3612 set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
3614 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3617 server->send_to_client(apdu);
3618 if (apdu->which == Z_APDU_close)
3621 server->recv_GDU_more(true);
3624 void Yaz_Proxy::low_socket_close()
3629 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3630 if (m_lo_fd[i] >= 0)
3631 ::close(m_lo_fd[i]);
3635 void Yaz_Proxy::low_socket_open()
3640 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3641 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3645 int Yaz_Proxy::server(const char *addr)
3647 int r = Z_Assoc::server(addr);
3650 yaz_log(YLOG_LOG, "%sStarted proxy "
3654 " on %s", m_session_str, addr);
3660 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3662 const char *base64_chars =
3663 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3664 int len = strlen(base64);
3668 for (int pos = 0; pos <= len; pos++)
3670 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3673 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3676 char ch = (char) (ch_ptr - base64_chars);
3680 buf[buf_pos] = ch << 2;
3683 buf[buf_pos++] += (ch & 0x30) >> 4;
3684 buf[buf_pos] = (ch & 0x0f) << 4;
3687 buf[buf_pos++] += (ch & 0x3c) >> 2;
3688 buf[buf_pos] = (ch & 0x03) << 6;
3691 buf[buf_pos++] += ch;
3698 buf[buf_pos] = '\0';
3704 * indent-tabs-mode: nil
3706 * vim: shiftwidth=4 tabstop=8 expandtab