1 /* $Id: yaz-proxy.cpp,v 1.78 2008-02-21 09:33:23 adam Exp $
2 Copyright (c) 1998-2008, 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 <yaz/oid_db.h>
55 #include "msg-thread.h"
57 using namespace yazpp_1;
60 #define strncasecmp _strnicmp
63 class YAZ_EXPORT Auth_Msg : public IMsg_Thread {
66 IMsg_Thread *handle();
78 m_nmem = nmem_create();
86 IMsg_Thread *Auth_Msg::handle()
88 ODR decode = odr_createmem(ODR_DECODE);
91 odr_setbuf(decode, m_apdu_buf, m_apdu_len, 0);
92 int r = z_APDU(decode, &apdu, 0, 0);
95 yaz_log(YLOG_WARN, "decode failed in Auth_Msg::handle");
99 m_ret = m_proxy->handle_authentication(apdu);
105 void Auth_Msg::result()
107 if (m_proxy->dec_ref())
109 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
113 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
115 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
117 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
118 m_proxy->result_authentication(apdu, m_ret);
123 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
125 if (apdu == 0 || ret == 0)
127 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
128 *apdu_reject->u.initResponse->result = 0;
129 send_to_client(apdu_reject);
134 if (apdu->which == Z_APDU_initRequest)
136 Yaz_ProxyConfig *cfg = check_reconfigure();
138 cfg->target_authentication(m_default_target, odr_encode(),
139 apdu->u.initRequest);
141 handle_incoming_Z_PDU_2(apdu);
145 static const char *apdu_name(Z_APDU *apdu)
149 case Z_APDU_initRequest:
150 return "initRequest";
151 case Z_APDU_initResponse:
152 return "initResponse";
153 case Z_APDU_searchRequest:
154 return "searchRequest";
155 case Z_APDU_searchResponse:
156 return "searchResponse";
157 case Z_APDU_presentRequest:
158 return "presentRequest";
159 case Z_APDU_presentResponse:
160 return "presentResponse";
161 case Z_APDU_deleteResultSetRequest:
162 return "deleteResultSetRequest";
163 case Z_APDU_deleteResultSetResponse:
164 return "deleteResultSetResponse";
165 case Z_APDU_scanRequest:
166 return "scanRequest";
167 case Z_APDU_scanResponse:
168 return "scanResponse";
169 case Z_APDU_sortRequest:
170 return "sortRequest";
171 case Z_APDU_sortResponse:
172 return "sortResponse";
173 case Z_APDU_extendedServicesRequest:
174 return "extendedServicesRequest";
175 case Z_APDU_extendedServicesResponse:
176 return "extendedServicesResponse";
183 static const char *gdu_name(Z_GDU *gdu)
188 return apdu_name(gdu->u.z3950);
189 case Z_GDU_HTTP_Request:
190 return "HTTP Request";
191 case Z_GDU_HTTP_Response:
192 return "HTTP Response";
194 return "Unknown request/response";
197 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
198 ISocketObservable *the_socket_observable,
201 Z_Assoc(the_PDU_Observable),
202 m_bw_stat(60), m_pdu_stat(60), m_search_stat(60)
204 m_PDU_Observable = the_PDU_Observable;
205 m_socket_observable = the_socket_observable;
210 m_keepalive_limit_bw = 500000;
211 m_keepalive_limit_pdu = 1000;
213 m_default_target = 0;
214 m_proxy_negotiation_charset = 0;
215 m_proxy_negotiation_lang = 0;
216 m_proxy_negotiation_default_charset = 0;
217 m_charset_converter = new Yaz_CharsetConverter;
221 m_client_idletime = 600;
222 m_target_idletime = 600;
223 m_max_sockets = 1024;
224 m_optimize = xstrdup ("1");
225 strcpy(m_session_str, "0 ");
233 m_max_connect_period = 0;
235 m_limit_connect_period = 0;
236 m_timeout_mode = timeout_normal;
238 m_max_record_retrieve = 0;
242 m_flag_invalid_session = 0;
244 m_referenceId_mem = nmem_create();
246 m_marcxml_mode = none;
247 m_stylesheet_xsp = 0;
248 m_stylesheet_nprl = 0;
249 m_stylesheet_apdu = 0;
250 m_s2z_stylesheet = 0;
254 m_backend_charset = 0;
255 m_frontend_type[0] = -1;
256 m_initRequest_apdu = 0;
257 m_initRequest_mem = 0;
258 m_initRequest_preferredMessageSize = 0;
259 m_initRequest_maximumRecordSize = 0;
260 m_initRequest_options = 0;
261 m_initRequest_version = 0;
262 m_initRequest_oi_negotiation_charsets = 0;
263 m_initRequest_oi_negotiation_num_charsets = 0;
264 m_initRequest_oi_negotiation_langs = 0;
265 m_initRequest_oi_negotiation_num_langs = 0;
266 m_initRequest_oi_negotiation_selected = 0;
267 m_apdu_invalid_session = 0;
268 m_mem_invalid_session = 0;
270 m_s2z_odr_search = 0;
272 m_s2z_search_apdu = 0;
273 m_s2z_present_apdu = 0;
274 m_http_keepalive = 0;
277 m_s2z_packing = Z_SRW_recordPacking_string;
278 #if HAVE_GETTIMEOFDAY
279 m_time_tv = xmalloc(sizeof(struct timeval));
280 struct timeval *tv = (struct timeval *) m_time_tv;
286 m_usemarcon_ini_stage1 = 0;
287 m_usemarcon_ini_stage2 = 0;
288 m_usemarcon = new Yaz_usemarcon();
293 m_main_ptr_dec = false;
295 m_num_msg_threads = 0;
298 void Yaz_Proxy::inc_ref()
303 Yaz_Proxy::~Yaz_Proxy()
305 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
306 m_bytes_sent, m_bytes_recv);
307 nmem_destroy(m_initRequest_mem);
308 nmem_destroy(m_mem_invalid_session);
309 nmem_destroy(m_referenceId_mem);
311 xfree(m_proxyTarget);
312 xfree(m_default_target);
313 xfree(m_proxy_negotiation_charset);
314 xfree(m_proxy_negotiation_lang);
315 xfree(m_proxy_negotiation_default_charset);
316 delete m_charset_converter;
320 if (m_stylesheet_xsp)
321 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
327 xfree (m_backend_type);
328 xfree (m_backend_charset);
329 xfree (m_usemarcon_ini_stage1);
330 xfree (m_usemarcon_ini_stage2);
333 odr_destroy(m_s2z_odr_init);
334 if (m_s2z_odr_search)
335 odr_destroy(m_s2z_odr_search);
343 void Yaz_Proxy::set_debug_mode(int mode)
348 int Yaz_Proxy::set_config(const char *config)
351 m_config = new Yaz_ProxyConfig();
352 xfree(m_config_fname);
353 m_config_fname = xstrdup(config);
354 int r = m_config->read_xml(config);
358 m_config->get_generic_info(&m_log_mask, &m_max_clients,
359 &m_max_connect, &m_limit_connect, &period,
361 m_connect.set_period(period);
366 void Yaz_Proxy::set_default_target(const char *target)
368 xfree (m_default_target);
369 m_default_target = 0;
371 m_default_target = (char *) xstrdup (target);
374 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
375 const char *default_charset)
377 yaz_log(YLOG_DEBUG, "%sSet the proxy negotiation: charset to '%s', "
378 "default charset to '%s', language to '%s'", m_session_str,
379 charset?charset:"none",
380 default_charset?default_charset:"none",
382 xfree (m_proxy_negotiation_charset);
383 xfree (m_proxy_negotiation_lang);
384 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
386 m_proxy_negotiation_charset = (char *) xstrdup (charset);
388 m_proxy_negotiation_lang = (char *) xstrdup (lang);
390 m_proxy_negotiation_default_charset =
391 (char *) xstrdup (default_charset);
394 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
397 return m_parent->check_reconfigure();
399 Yaz_ProxyConfig *cfg = m_config;
402 yaz_log(YLOG_LOG, "reconfigure");
403 if (m_config_fname && cfg)
405 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
406 int r = cfg->read_xml(m_config_fname);
408 yaz_log(YLOG_WARN, "reconfigure failed");
413 cfg->get_generic_info(&m_log_mask, &m_max_clients,
414 &m_max_connect, &m_limit_connect,
415 &period, &m_num_msg_threads);
416 m_connect.set_period(period);
420 yaz_log(YLOG_LOG, "reconfigure");
426 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
427 *the_PDU_Observable, int fd)
431 char session_str[200];
432 const char *peername = the_PDU_Observable->getpeername();
434 peername = "nullpeer";
436 if (m_log_mask & PROXY_LOG_IP_CLIENT)
437 sprintf(session_str, "%ld:%d %.80s %d ",
438 (long) time(0), m_session_no, peername, 0);
440 sprintf(session_str, "%ld:%d %d ",
441 (long) time(0), m_session_no, 0);
444 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
446 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
447 m_socket_observable, this);
449 new_proxy->m_config = 0;
450 new_proxy->m_config_fname = 0;
451 new_proxy->timeout(m_client_idletime);
452 new_proxy->m_target_idletime = m_target_idletime;
453 new_proxy->set_default_target(m_default_target);
454 new_proxy->m_max_clients = m_max_clients;
455 new_proxy->m_log_mask = m_log_mask;
456 new_proxy->m_session_no = m_session_no;
457 new_proxy->m_num_msg_threads = m_num_msg_threads;
460 // in case we want to watch a particular client..
461 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
462 new_proxy->m_log_mask = 255;
465 new_proxy->set_APDU_log(get_APDU_log());
466 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
467 new_proxy->set_APDU_yazlog(1);
469 new_proxy->set_APDU_yazlog(0);
470 strcpy(new_proxy->m_session_str, session_str);
471 new_proxy->m_peername = xstrdup(peername);
472 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
473 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
474 // create thread object the first time we get an incoming connection
475 if (!m_my_thread && m_num_msg_threads > 0)
477 yaz_log (YLOG_LOG, "%sStarting message thread management. number=%d",
478 session_str, m_num_msg_threads);
479 m_my_thread = new Msg_Thread(m_socket_observable, m_num_msg_threads);
481 new_proxy->m_my_thread = m_my_thread;
485 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
487 Z_OtherInformationUnit *oi =
488 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_cookie, 1, 1);
490 if (oi && oi->which == Z_OtherInfo_characterInfo)
491 return oi->information.characterInfo;
495 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
497 Z_OtherInformationUnit *oi =
498 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_proxy, 1, 1);
500 if (oi && oi->which == Z_OtherInfo_characterInfo)
501 return oi->information.characterInfo;
504 const char *Yaz_Proxy::load_balance(const char **url)
506 int zurl_in_use[MAX_ZURL_PLEX];
507 int zurl_in_spare[MAX_ZURL_PLEX];
511 for (i = 0; i<MAX_ZURL_PLEX; i++)
514 zurl_in_spare[i] = 0;
516 for (c = m_parent->m_clientPool; c; c = c->m_next)
518 for (i = 0; url[i]; i++)
519 if (!strcmp(url[i], c->get_hostname()))
522 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
526 int min_use = 100000;
527 int spare_for_min = 0;
529 const char *ret_min = 0;
530 const char *ret_spare = 0;
531 for (i = 0; url[i]; i++)
533 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
534 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
535 if (min_use > zurl_in_use[i])
538 min_use = zurl_in_use[i];
539 spare_for_min = zurl_in_spare[i];
541 if (max_spare < zurl_in_spare[i])
544 max_spare = zurl_in_spare[i];
550 int Yaz_Proxy::get_number_of_connections()
552 int no_connections = 0;
555 for (c = m_parent->m_clientPool; c; c = c->m_next)
558 assert(*c->m_prev == c);
559 if (!strcmp(m_proxyTarget, c->get_hostname()))
564 yaz_log (YLOG_LOG, "%sExisting %s connections: %d", m_session_str, m_proxyTarget,
566 return no_connections;
569 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
570 const char *proxy_host, int *http_code)
573 Yaz_Proxy *parent = m_parent;
574 Yaz_ProxyClient *c = m_client;
578 const char *url[MAX_ZURL_PLEX];
579 Yaz_ProxyConfig *cfg = check_reconfigure();
582 if (parent && parent->m_debug_mode)
584 // only to be enabled for debugging...
585 if (!strcmp(proxy_host, "stop"))
588 xfree(m_default_target);
589 m_default_target = xstrdup(proxy_host);
591 proxy_host = m_default_target;
592 int client_idletime = -1;
593 const char *cql2rpn_fname = 0;
594 const char *negotiation_charset = 0;
595 const char *negotiation_lang = 0;
596 const char *query_charset = 0;
597 const char *default_client_query_charset = 0;
598 url[0] = m_default_target;
603 cfg->get_target_info(proxy_host, url, &m_bw_max,
604 &m_pdu_max, &m_max_record_retrieve,
606 &m_target_idletime, &client_idletime,
608 &parent->m_max_clients,
609 &m_keepalive_limit_bw,
610 &m_keepalive_limit_pdu,
613 &negotiation_charset,
616 &default_client_query_charset);
618 if (client_idletime != -1)
620 m_client_idletime = client_idletime;
621 timeout(m_client_idletime);
624 // get those FILE descriptors available
625 m_parent->low_socket_close();
627 m_cql2rpn.set_pqf_file(cql2rpn_fname);
628 // reserve them again
629 m_parent->low_socket_open();
631 if (negotiation_charset || negotiation_lang || default_client_query_charset)
633 set_proxy_negotiation(negotiation_charset,
634 negotiation_lang, default_client_query_charset);
636 m_charset_converter->set_target_query_charset(query_charset);
639 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
642 // we don't handle multiplexing for cookie session, so we just
643 // pick the first one in this case (anonymous users will be able
644 // to use any backend)
645 if (cookie && *cookie)
646 m_proxyTarget = (char*) xstrdup(url[0]);
648 m_proxyTarget = (char*) xstrdup(load_balance(url));
650 if (cookie && *cookie)
651 { // search in sessions with a cookie
652 for (c = parent->m_clientPool; c; c = c->m_next)
655 assert (*c->m_prev == c);
656 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
657 !strcmp(m_proxyTarget, c->get_hostname()))
660 // The following handles "cancel"
661 // If connection is busy (waiting for PDU) and
662 // we have an initRequest we can safely do re-open
663 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
665 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
672 c->m_last_resultCount = 0;
673 c->m_sr_transform = 0;
675 c->m_resultSetStartPoint = 0;
676 c->m_target_idletime = m_target_idletime;
677 if (c->client(m_proxyTarget))
684 c->m_seqno = parent->m_seqno;
685 if (c->m_server && c->m_server != this)
686 c->m_server->m_client = 0;
689 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
694 else if (!c && apdu->which == Z_APDU_initRequest )
696 // anonymous sessions without cookie.
697 // if authentication is set it is NOT anonymous se we can't share them.
698 // If charset and lang negotiation is use it is NOT anonymous session too.
699 for (c = parent->m_clientPool; c; c = c->m_next)
702 assert(*c->m_prev == c);
703 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
704 && c->compare_idAuthentication(apdu)
705 && c->compare_charset(apdu)
706 && !strcmp(m_proxyTarget, c->get_hostname()))
709 yaz_log (YLOG_LOG, "%sREUSE %d %s",
710 m_session_str, parent->m_seqno, c->get_hostname());
712 c->m_seqno = parent->m_seqno;
713 assert(c->m_server == 0);
716 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
717 c->set_APDU_yazlog(1);
719 c->set_APDU_yazlog(0);
731 if (apdu->which != Z_APDU_initRequest)
733 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
738 int no_in_use = get_number_of_connections();
739 if (no_in_use >= m_max_sockets)
741 yaz_log (YLOG_LOG, "%smax sockets reached %d", m_session_str,
746 // go through list of clients - and find the lowest/oldest one.
747 Yaz_ProxyClient *c_min = 0;
749 int no_of_clients = 0;
750 if (parent->m_clientPool)
751 yaz_log (YLOG_DEBUG, "Existing sessions");
752 for (c = parent->m_clientPool; c; c = c->m_next)
754 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
755 c->m_waiting, c->get_hostname(),
756 c->m_cookie ? c->m_cookie : "");
758 if (min_seq < 0 || c->m_seqno < min_seq)
760 min_seq = c->m_seqno;
764 if (no_of_clients >= parent->m_max_clients)
767 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
769 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
770 m_session_str, parent->m_max_clients, c->m_seqno);
771 if (c->m_server && c->m_server != this)
772 c->m_server->dec_ref();
776 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
777 m_session_str, parent->m_max_clients,
778 c->m_seqno, parent->m_seqno, c->get_hostname());
782 c->m_cookie = xstrdup(cookie);
783 c->m_seqno = parent->m_seqno;
784 if (c->m_server && c->m_server != this)
786 c->m_server->m_client = 0;
787 c->m_server->dec_ref();
790 c->m_target_idletime = m_target_idletime;
791 c->timeout(m_target_idletime);
793 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
794 c->set_APDU_yazlog(1);
796 c->set_APDU_yazlog(0);
804 yaz_log (YLOG_LOG, "%sNEW %d %s",
805 m_session_str, parent->m_seqno, m_proxyTarget);
806 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
807 c->m_next = parent->m_clientPool;
809 c->m_next->m_prev = &c->m_next;
810 parent->m_clientPool = c;
811 c->m_prev = &parent->m_clientPool;
817 c->m_cookie = xstrdup(cookie);
819 c->m_seqno = parent->m_seqno;
821 c->m_last_resultCount = 0;
824 c->m_sr_transform = 0;
826 c->m_resultSetStartPoint = 0;
828 if (c->client(m_proxyTarget))
833 c->m_target_idletime = m_target_idletime;
836 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
837 c->set_APDU_yazlog(1);
839 c->set_APDU_yazlog(0);
841 c->set_idAuthentication(apdu);
843 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
847 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
850 for (i = 0; i<num; i++)
852 Z_DefaultDiagFormat *r;
853 Z_DiagRec *p = pp[i];
854 if (p->which != Z_DiagRec_defaultFormat)
856 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
860 r = p->u.defaultFormat;
863 case Z_DefaultDiagFormat_v2Addinfo:
864 yaz_log(YLOG_LOG, "%sError %d %s:%s",
866 *r->condition, diagbib1_str(*r->condition),
869 case Z_DefaultDiagFormat_v3Addinfo:
870 yaz_log(YLOG_LOG, "%sError %d %s:%s",
872 *r->condition, diagbib1_str(*r->condition),
879 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
881 if (!m_stylesheet_xsp || p->num_records <= 0)
883 return 0; /* no XSLT to be done ... */
886 m_stylesheet_offset = 0;
887 m_stylesheet_nprl = p;
888 m_stylesheet_apdu = apdu;
889 m_timeout_mode = timeout_xsl;
895 void Yaz_Proxy::convert_xsl_delay()
898 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
899 if (npr->which == Z_NamePlusRecord_databaseRecord)
901 Z_External *r = npr->u.databaseRecord;
902 if (r->which == Z_External_octet)
905 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
907 xmlDocPtr res, doc = xmlParseMemory(
908 (char*) r->u.octet_aligned->buf,
909 r->u.octet_aligned->len);
912 yaz_log(YLOG_LOG, "%sXSLT convert %d",
913 m_session_str, m_stylesheet_offset);
914 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
921 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
922 m_stylesheet_nprl->records[m_stylesheet_offset]->
924 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
925 (char*) out_buf, out_len);
934 m_stylesheet_offset++;
935 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
937 m_timeout_mode = timeout_normal;
938 m_stylesheet_nprl = 0;
940 if (m_stylesheet_xsp)
941 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
943 m_stylesheet_xsp = 0;
944 timeout(m_client_idletime);
945 send_PDU_convert(m_stylesheet_apdu);
951 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
953 if (m_frontend_type[0] != -1)
956 for (i = 0; i < p->num_records; i++)
958 Z_NamePlusRecord *npr = p->records[i];
959 if (npr->which == Z_NamePlusRecord_databaseRecord)
961 Z_External *r = npr->u.databaseRecord;
962 if (r->which == Z_External_octet)
965 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
967 if (!m_usemarcon->m_stage1)
969 m_usemarcon->m_stage1 = new CDetails();
971 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
972 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
973 int res = m_usemarcon->m_stage1->Start();
978 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
979 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
981 if (!m_usemarcon->m_stage2)
983 m_usemarcon->m_stage2 = new CDetails();
985 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
986 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
987 res = m_usemarcon->m_stage2->Start();
991 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
995 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
998 npr->u.databaseRecord =
999 z_ext_record_oid(odr_encode(),
1007 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
1012 /* HAVE_USEMARCON */
1013 npr->u.databaseRecord =
1014 z_ext_record_oid(odr_encode(),
1016 (char*) r->u.octet_aligned->buf,
1017 r->u.octet_aligned->len);
1024 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1025 const char *backend_charset)
1027 int sel = m_charset_converter->get_client_charset_selected();
1028 const char *client_record_charset =
1029 m_charset_converter->get_client_query_charset();
1030 if (sel && backend_charset && client_record_charset &&
1031 strcmp(backend_charset, client_record_charset))
1034 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1036 yaz_marc_t mt = yaz_marc_create();
1037 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1038 yaz_marc_iconv(mt, cd);
1039 for (i = 0; i < p->num_records; i++)
1041 Z_NamePlusRecord *npr = p->records[i];
1042 if (npr->which == Z_NamePlusRecord_databaseRecord)
1044 Z_External *r = npr->u.databaseRecord;
1045 const Odr_oid *oid = r->direct_reference;
1049 if (!oid_oidcmp(oid, yaz_oid_recsyn_sutrs))
1051 WRBUF w = wrbuf_alloc();
1053 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1054 r->u.octet_aligned->len);
1055 npr->u.databaseRecord =
1056 z_ext_record_oid(odr_encode(), oid, wrbuf_buf(w),
1060 else if (!oid_oidcmp(oid, yaz_oid_recsyn_xml))
1064 else if (r->which == Z_External_octet)
1068 if (yaz_marc_decode_buf(mt,
1069 (char*) r->u.octet_aligned->buf,
1070 r->u.octet_aligned->len,
1073 npr->u.databaseRecord =
1074 z_ext_record_oid(odr_encode(), oid, result, rlen);
1075 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1082 yaz_iconv_close(cd);
1083 yaz_marc_destroy(mt);
1087 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1088 const char *backend_charset)
1091 if (!backend_charset)
1092 backend_charset = "MARC-8";
1093 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1094 yaz_marc_t mt = yaz_marc_create();
1095 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1096 yaz_marc_iconv(mt, cd);
1097 for (i = 0; i < p->num_records; i++)
1099 Z_NamePlusRecord *npr = p->records[i];
1100 if (npr->which == Z_NamePlusRecord_databaseRecord)
1102 Z_External *r = npr->u.databaseRecord;
1103 if (r->which == Z_External_OPAC)
1105 WRBUF w = wrbuf_alloc();
1107 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1108 npr->u.databaseRecord = z_ext_record_oid(
1109 odr_encode(), yaz_oid_recsyn_xml,
1110 wrbuf_buf(w), wrbuf_len(w));
1113 else if (r->which == Z_External_octet)
1117 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1118 r->u.octet_aligned->len,
1121 npr->u.databaseRecord =
1122 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
1129 yaz_iconv_close(cd);
1130 yaz_marc_destroy(mt);
1133 void Yaz_Proxy::logtime()
1135 #if HAVE_GETTIMEOFDAY
1136 struct timeval *tv = (struct timeval*) m_time_tv;
1140 gettimeofday(&tv1, 0);
1141 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1142 (tv1.tv_usec - tv->tv_usec);
1144 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1145 diff/1000000, (diff/1000)%1000);
1152 int Yaz_Proxy::send_http_response(int code)
1154 ODR o = odr_encode();
1155 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1156 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1158 hres->version = odr_strdup(o, m_http_version);
1159 if (m_http_keepalive)
1160 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1164 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate",
1165 "Basic realm=\"YAZ Proxy\"");
1168 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1170 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1174 int r = send_GDU(gdu, &len);
1175 m_bytes_sent += len;
1176 m_bw_stat.add_bytes(len);
1179 recv_GDU_more(true);
1184 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1186 ODR o = odr_encode();
1187 const char *ctype = "text/xml";
1188 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1189 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1191 hres->version = odr_strdup(o, m_http_version);
1192 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1193 if (m_http_keepalive)
1194 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1197 if (http_code == 401)
1198 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1200 static Z_SOAP_Handler soap_handlers[2] = {
1202 {"http://www.loc.gov/zing/srw/", 0,
1203 (Z_SOAP_fun) yaz_srw_codec},
1208 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1209 soap_package->which = Z_SOAP_generic;
1210 soap_package->u.generic =
1211 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1212 soap_package->u.generic->no = 0;
1213 soap_package->u.generic->ns = soap_handlers[0].ns;
1214 soap_package->u.generic->p = (void *) srw_pdu;
1215 soap_package->ns = m_soap_ns;
1216 z_soap_codec_enc_xsl(o, &soap_package,
1217 &hres->content_buf, &hres->content_len,
1218 soap_handlers, 0, m_s2z_stylesheet);
1219 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1221 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1225 int r = send_GDU(gdu, &len);
1226 m_bytes_sent += len;
1227 m_bw_stat.add_bytes(len);
1230 recv_GDU_more(true);
1235 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1237 ODR o = odr_encode();
1238 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1239 odr_malloc(o, sizeof(*diagnostic));
1240 int num_diagnostic = 1;
1241 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1242 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1245 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1246 Z_DefaultDiagFormat *ddf)
1248 int bib1_code = *ddf->condition;
1249 if (bib1_code == 109)
1251 srw_res->num_diagnostics = 1;
1252 srw_res->diagnostics = (Z_SRW_diagnostic *)
1253 odr_malloc(o, sizeof(*srw_res->diagnostics));
1254 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1255 yaz_diag_bib1_to_srw(*ddf->condition),
1260 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1262 ODR o = odr_encode();
1263 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1264 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1266 srw_res->numberOfRecords = odr_intdup (o, hits);
1267 if (records && records->which == Z_Records_DBOSD)
1269 srw_res->num_records =
1270 records->u.databaseOrSurDiagnostics->num_records;
1272 srw_res->records = (Z_SRW_record *)
1273 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1274 for (i = 0; i < srw_res->num_records; i++)
1276 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1277 if (npr->which != Z_NamePlusRecord_databaseRecord)
1279 srw_res->records[i].recordSchema = "diagnostic";
1280 srw_res->records[i].recordPacking = m_s2z_packing;
1281 srw_res->records[i].recordData_buf = "67";
1282 srw_res->records[i].recordData_len = 2;
1283 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1286 Z_External *r = npr->u.databaseRecord;
1288 if (r->which == Z_External_octet
1289 && !oid_oidcmp(r->direct_reference, yaz_oid_recsyn_xml))
1291 srw_res->records[i].recordSchema = m_schema;
1292 srw_res->records[i].recordPacking = m_s2z_packing;
1293 srw_res->records[i].recordData_buf = (char*)
1294 r->u.octet_aligned->buf;
1295 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1296 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1300 srw_res->records[i].recordSchema = "diagnostic";
1301 srw_res->records[i].recordPacking = m_s2z_packing;
1302 srw_res->records[i].recordData_buf = "67";
1303 srw_res->records[i].recordData_len = 2;
1304 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1308 if (records && records->which == Z_Records_NSD)
1311 http_code = z_to_srw_diag(odr_encode(), srw_res,
1312 records->u.nonSurrogateDiagnostic);
1314 return send_http_response(http_code);
1316 return send_srw_response(srw_pdu);
1320 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1321 int num_diagnostics, int http_code /* = 200 */)
1323 ODR o = odr_encode();
1324 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1325 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1327 srw_res->num_diagnostics = num_diagnostics;
1328 srw_res->diagnostics = diagnostics;
1329 return send_srw_response(srw_pdu, http_code);
1332 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1333 int num_diagnostics)
1335 Yaz_ProxyConfig *cfg = check_reconfigure();
1339 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1340 m_s2z_database, &len);
1343 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1344 Z_SRW_explainResponse *er = res->u.explain_response;
1346 er->record.recordData_buf = b;
1347 er->record.recordData_len = len;
1348 er->record.recordPacking = m_s2z_packing;
1349 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1351 er->diagnostics = diagnostics;
1352 er->num_diagnostics = num_diagnostics;
1353 return send_srw_response(res);
1356 return send_http_response(404);
1359 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1363 if (apdu->which == Z_APDU_initResponse)
1365 Z_InitResponse *res = apdu->u.initResponse;
1366 if (*res->result == 0)
1368 send_to_srw_client_error(3, 0);
1370 else if (!m_s2z_search_apdu)
1372 send_srw_explain_response(0, 0);
1376 handle_incoming_Z_PDU(m_s2z_search_apdu);
1379 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1381 m_s2z_search_apdu = 0;
1382 Z_SearchResponse *res = apdu->u.searchResponse;
1383 m_s2z_hit_count = *res->resultCount;
1384 if (res->records && res->records->which == Z_Records_NSD)
1386 send_to_srw_client_ok(0, res->records, 1);
1388 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1391 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1393 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1395 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1397 *pr->numberOfRecordsRequested =
1398 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1400 handle_incoming_Z_PDU(m_s2z_present_apdu);
1404 m_s2z_present_apdu = 0;
1405 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1408 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1411 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1413 m_s2z_present_apdu = 0;
1414 Z_PresentResponse *res = apdu->u.presentResponse;
1415 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1421 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1422 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1424 int r = send_Z_PDU(apdu, &len);
1425 m_bytes_sent += len;
1426 m_bw_stat.add_bytes(len);
1433 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1435 int kill_session = 0;
1436 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1439 *new_id = m_referenceId;
1441 if (apdu->which == Z_APDU_searchResponse)
1443 Z_SearchResponse *sr = apdu->u.searchResponse;
1444 Z_Records *p = sr->records;
1445 if (p && p->which == Z_Records_NSD)
1447 Z_DiagRec dr, *dr_p = &dr;
1448 dr.which = Z_DiagRec_defaultFormat;
1449 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1451 *sr->searchStatus = 0;
1452 display_diagrecs(&dr_p, 1);
1456 if (p && p->which == Z_Records_DBOSD)
1460 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1463 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1464 if (m_marcxml_mode == marcxml)
1465 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1468 convert_records_charset(p->u.databaseOrSurDiagnostics,
1470 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1474 if (sr->resultCount)
1476 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1478 if (*sr->resultCount < 0)
1480 m_flag_invalid_session = 1;
1483 *sr->searchStatus = 0;
1485 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1486 *sr->resultCount = 0;
1491 else if (apdu->which == Z_APDU_presentResponse)
1493 Z_PresentResponse *sr = apdu->u.presentResponse;
1494 Z_Records *p = sr->records;
1495 if (p && p->which == Z_Records_NSD)
1497 Z_DiagRec dr, *dr_p = &dr;
1498 dr.which = Z_DiagRec_defaultFormat;
1499 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1500 if (*sr->presentStatus == Z_PresentStatus_success)
1501 *sr->presentStatus = Z_PresentStatus_failure;
1502 display_diagrecs(&dr_p, 1);
1504 if (p && p->which == Z_Records_DBOSD)
1508 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1511 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1512 if (m_marcxml_mode == marcxml)
1513 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1516 convert_records_charset(p->u.databaseOrSurDiagnostics,
1518 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1522 else if (apdu->which == Z_APDU_initResponse)
1524 //Get and check negotiation record
1525 //from init response.
1526 handle_charset_lang_negotiation(apdu);
1528 if (m_initRequest_options)
1531 (Odr_bitmask *)odr_malloc(odr_encode(),
1532 sizeof(Odr_bitmask));
1533 ODR_MASK_ZERO(nopt);
1536 for (i = 0; i<24; i++)
1537 if (ODR_MASK_GET(m_initRequest_options, i) &&
1538 ODR_MASK_GET(apdu->u.initResponse->options, i))
1539 ODR_MASK_SET(nopt, i);
1540 apdu->u.initResponse->options = nopt;
1542 if (m_initRequest_version)
1544 Z_ProtocolVersion *nopt =
1545 (Odr_bitmask *)odr_malloc(odr_encode(),
1546 sizeof(Odr_bitmask));
1547 ODR_MASK_ZERO(nopt);
1550 for (i = 0; i<8; i++)
1551 if (ODR_MASK_GET(m_initRequest_version, i) &&
1552 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1553 ODR_MASK_SET(nopt, i);
1554 apdu->u.initResponse->protocolVersion = nopt;
1556 apdu->u.initResponse->preferredMessageSize =
1557 odr_intdup(odr_encode(),
1558 m_client->m_initResponse_preferredMessageSize >
1559 m_initRequest_preferredMessageSize ?
1560 m_initRequest_preferredMessageSize :
1561 m_client->m_initResponse_preferredMessageSize);
1562 apdu->u.initResponse->maximumRecordSize =
1563 odr_intdup(odr_encode(),
1564 m_client->m_initResponse_maximumRecordSize >
1565 m_initRequest_maximumRecordSize ?
1566 m_initRequest_maximumRecordSize :
1567 m_client->m_initResponse_maximumRecordSize);
1570 int r = send_PDU_convert(apdu);
1577 m_parent->pre_init();
1582 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1584 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1586 odr_reset(m_idAuthentication_odr);
1587 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1588 m_idAuthentication_ber_buf =
1589 odr_getbuf(m_idAuthentication_odr,
1590 &m_idAuthentication_ber_size, 0);
1593 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1598 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1600 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1601 ODR odr = odr_createmem(ODR_ENCODE);
1603 z_IdAuthentication(odr, &t, 1, 0);
1605 char *buf = odr_getbuf(odr, &sz, 0);
1606 if (buf && m_idAuthentication_ber_buf
1607 && sz == m_idAuthentication_ber_size
1608 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1614 if (!buf && !m_idAuthentication_ber_buf)
1619 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1622 const char *apdu_name_tmp = apdu_name(apdu);
1623 int r = send_Z_PDU(apdu, &len);
1624 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1625 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1627 apdu_name_tmp, get_hostname(), len);
1628 m_bytes_sent += len;
1632 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1634 if (apdu->which == Z_APDU_presentRequest)
1636 Z_PresentRequest *pr = apdu->u.presentRequest;
1637 int toget = *pr->numberOfRecordsRequested;
1638 int start = *pr->resultSetStartPoint;
1640 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1641 pr->resultSetId, start, toget);
1643 if (*m_parent->m_optimize == '0')
1646 if (!m_client->m_last_resultSetId)
1648 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1649 new_apdu->u.presentResponse->records =
1650 create_nonSurrogateDiagnostics(
1652 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1654 send_to_client(new_apdu);
1657 if (start < 1 || toget < 0)
1659 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1660 new_apdu->u.presentResponse->records =
1661 create_nonSurrogateDiagnostics(
1663 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1665 send_to_client(new_apdu);
1668 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1670 if (start+toget-1 > m_client->m_last_resultCount)
1672 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1673 new_apdu->u.presentResponse->records =
1674 create_nonSurrogateDiagnostics(
1676 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1678 send_to_client(new_apdu);
1681 Z_NamePlusRecordList *npr;
1683 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1684 m_session_str, start, toget, yaz_z3950oid_to_str(
1685 pr->preferredRecordSyntax, &oclass));
1687 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1688 pr->preferredRecordSyntax,
1689 pr->recordComposition))
1691 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1693 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1694 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1696 new_apdu->u.presentResponse->numberOfRecordsReturned
1697 = odr_intdup(odr_encode(), toget);
1699 new_apdu->u.presentResponse->records = (Z_Records*)
1700 odr_malloc(odr_encode(), sizeof(Z_Records));
1701 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1702 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1703 new_apdu->u.presentResponse->nextResultSetPosition =
1704 odr_intdup(odr_encode(), start+toget);
1706 send_to_client(new_apdu);
1712 if (apdu->which != Z_APDU_searchRequest)
1714 Z_SearchRequest *sr = apdu->u.searchRequest;
1715 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1716 Yaz_Z_Databases this_databases;
1718 this_databases.set(sr->num_databaseNames, (const char **)
1721 this_query->set_Z_Query(sr->query);
1723 // Check for non-negative piggyback params.
1724 if (*sr->smallSetUpperBound < 0
1725 || *sr->largeSetLowerBound < 0
1726 || *sr->mediumSetPresentNumber < 0)
1728 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1729 // Not a present request.. But can't find better diagnostic
1730 new_apdu->u.searchResponse->records =
1731 create_nonSurrogateDiagnostics(
1733 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1734 send_to_client(new_apdu);
1738 char query_str[4096];
1739 this_query->print(query_str, sizeof(query_str)-1);
1740 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1742 if (*m_parent->m_optimize != '0' &&
1743 m_client->m_last_ok && m_client->m_last_query &&
1744 m_client->m_last_query->match(this_query) &&
1745 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1746 m_client->m_last_databases.match(this_databases))
1749 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1750 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1752 Z_NamePlusRecordList *npr;
1753 int toget = *sr->mediumSetPresentNumber;
1754 Z_RecordComposition *comp = 0;
1756 if (toget > m_client->m_last_resultCount)
1757 toget = m_client->m_last_resultCount;
1759 if (sr->mediumSetElementSetNames)
1761 comp = (Z_RecordComposition *)
1762 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1763 comp->which = Z_RecordComp_simple;
1764 comp->u.simple = sr->mediumSetElementSetNames;
1767 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1768 sr->preferredRecordSyntax, comp))
1770 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1772 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1773 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1774 new_apdu->u.searchResponse->resultCount =
1775 &m_client->m_last_resultCount;
1777 new_apdu->u.searchResponse->numberOfRecordsReturned
1778 = odr_intdup(odr_encode(), toget);
1780 new_apdu->u.searchResponse->presentStatus =
1781 odr_intdup(odr_encode(), Z_PresentStatus_success);
1782 new_apdu->u.searchResponse->records = (Z_Records*)
1783 odr_malloc(odr_encode(), sizeof(Z_Records));
1784 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1785 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1786 new_apdu->u.searchResponse->nextResultSetPosition =
1787 odr_intdup(odr_encode(), toget+1);
1788 send_to_client(new_apdu);
1794 // send present request (medium size)
1795 yaz_log (YLOG_LOG, "%sOptimizing search for medium 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;
1809 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1810 m_client->m_last_resultCount <= 0)
1812 // large set. Return pseudo-search response immediately
1813 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1815 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1816 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1817 new_apdu->u.searchResponse->resultCount =
1818 &m_client->m_last_resultCount;
1819 send_to_client(new_apdu);
1824 Z_NamePlusRecordList *npr;
1825 int toget = m_client->m_last_resultCount;
1826 Z_RecordComposition *comp = 0;
1828 // send a present request (small set)
1830 if (sr->smallSetElementSetNames)
1832 comp = (Z_RecordComposition *)
1833 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1834 comp->which = Z_RecordComp_simple;
1835 comp->u.simple = sr->smallSetElementSetNames;
1838 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1839 sr->preferredRecordSyntax, comp))
1841 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1843 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1844 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1845 new_apdu->u.searchResponse->resultCount =
1846 &m_client->m_last_resultCount;
1848 new_apdu->u.searchResponse->numberOfRecordsReturned
1849 = odr_intdup(odr_encode(), toget);
1851 new_apdu->u.searchResponse->presentStatus =
1852 odr_intdup(odr_encode(), Z_PresentStatus_success);
1853 new_apdu->u.searchResponse->records = (Z_Records*)
1854 odr_malloc(odr_encode(), sizeof(Z_Records));
1855 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1856 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1857 new_apdu->u.searchResponse->nextResultSetPosition =
1858 odr_intdup(odr_encode(), toget+1);
1859 send_to_client(new_apdu);
1864 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1866 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1867 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1868 pr->referenceId = sr->referenceId;
1869 pr->resultSetId = sr->resultSetName;
1870 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1871 *pr->numberOfRecordsRequested = toget;
1872 pr->recordComposition = comp;
1873 m_client->m_sr_transform = 1;
1878 else // query doesn't match
1880 delete m_client->m_last_query;
1881 m_client->m_last_query = this_query;
1882 m_client->m_last_ok = 0;
1883 m_client->m_cache.clear();
1884 m_client->m_resultSetStartPoint = 0;
1886 xfree (m_client->m_last_resultSetId);
1887 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1889 m_client->m_last_databases.set(sr->num_databaseNames,
1890 (const char **) sr->databaseNames);
1896 void Yaz_Proxy::inc_request_no()
1899 char *cp = m_session_str + strlen(m_session_str)-1;
1902 while (*cp && *cp != ' ')
1905 sprintf(cp+1, "%d ", m_request_no);
1908 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1912 m_bytes_recv += len;
1914 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1915 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1916 m_session_str, gdu_name(apdu), len);
1919 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1920 if (apdu->which == Z_GDU_Z3950
1921 && apdu->u.z3950->which == Z_APDU_searchRequest)
1923 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1924 if (req->query && req->query->which == Z_Query_type_1)
1926 Z_RPNQuery *rpnquery = req->query->u.type_1;
1927 if (rpnquery->attributeSetId)
1929 rpnquery->attributeSetId[0] = -2;
1930 rpnquery->attributeSetId[1] = -1;
1931 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1937 #if HAVE_GETTIMEOFDAY
1938 gettimeofday((struct timeval *) m_time_tv, 0);
1940 m_bw_stat.add_bytes(len);
1941 m_pdu_stat.add_bytes(1);
1943 GDU *gdu = new GDU(apdu);
1945 if (gdu->get() == 0)
1948 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1953 m_in_queue.enqueue(gdu);
1954 recv_GDU_more(false);
1957 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1959 if (z_gdu->which == Z_GDU_HTTP_Request)
1961 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1962 const char *x_forwarded_for =
1963 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1964 if (x_forwarded_for)
1967 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1968 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1970 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1972 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1973 sprintf(m_session_str, "%ld:%d %.80s %d ",
1974 (long) time(0), m_session_no, m_peername, m_request_no);
1976 sprintf(m_session_str, "%ld:%d %d ",
1977 (long) time(0), m_session_no, m_request_no);
1982 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1985 m_parent->m_connect.cleanup(false);
1986 m_parent->m_connect.add_connect(m_peername);
1988 int connect_total = m_parent->m_connect.get_total(m_peername);
1989 int max_connect = m_parent->m_max_connect;
1991 if (max_connect && connect_total > max_connect)
1993 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1994 m_session_str, connect_total, max_connect);
1999 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
2002 int limit_connect = m_parent->m_limit_connect;
2004 reduce = connect_total / limit_connect;
2009 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
2011 HTTP_Forwarded(gdu->get());
2015 if (m_request_no == 1)
2019 connect_stat(block, reduce);
2023 m_timeout_mode = timeout_busy;
2029 int bw_total = m_bw_stat.get_total();
2030 int pdu_total = m_pdu_stat.get_total();
2031 int search_total = m_search_stat.get_total();
2033 assert(m_timeout_mode == timeout_busy);
2034 assert(m_timeout_gdu == 0);
2037 reduce += search_total / m_search_max;
2039 reduce += (bw_total/m_bw_max);
2042 if (pdu_total > m_pdu_max)
2044 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2045 reduce = (reduce > nreduce) ? reduce : nreduce;
2051 /* uncomment to force a big reduce */
2052 m_timeout_mode = timeout_reduce;
2053 m_timeout_gdu = gdu;
2054 timeout(3); // call us reduce seconds later
2059 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2060 m_session_str, reduce, bw_total, pdu_total, search_total,
2061 m_bw_max, m_pdu_max, m_search_max);
2063 m_timeout_mode = timeout_reduce;
2064 m_timeout_gdu = gdu;
2065 timeout(reduce); // call us reduce seconds later
2068 recv_GDU_normal(gdu);
2071 void Yaz_Proxy::recv_GDU_more(bool normal)
2074 if (normal && m_timeout_mode == timeout_busy)
2075 m_timeout_mode = timeout_normal;
2076 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2078 m_timeout_mode = timeout_busy;
2086 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2089 gdu->move_away_gdu(odr_decode(), &apdu);
2092 if (apdu->which == Z_GDU_Z3950)
2093 handle_incoming_Z_PDU(apdu->u.z3950);
2094 else if (apdu->which == Z_GDU_HTTP_Request)
2095 handle_incoming_HTTP(apdu->u.HTTP_Request);
2098 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2100 if (m_max_record_retrieve)
2102 if (apdu->which == Z_APDU_presentRequest)
2104 Z_PresentRequest *pr = apdu->u.presentRequest;
2105 if (pr->numberOfRecordsRequested &&
2106 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2107 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2112 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2114 if (apdu->which == Z_APDU_initRequest)
2116 if (m_initRequest_options &&
2117 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2118 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2120 // There is no negotiation proposal from
2121 // client's side. OK. The proxy negotiation
2123 Z_InitRequest *initRequest = apdu->u.initRequest;
2124 Z_OtherInformation **otherInfo;
2125 Z_OtherInformationUnit *oi;
2126 get_otherInfoAPDU(apdu, &otherInfo);
2127 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2130 ODR_MASK_SET(initRequest->options,
2131 Z_Options_negotiationModel);
2132 oi->which = Z_OtherInfo_externallyDefinedInfo;
2133 oi->information.externallyDefinedInfo =
2134 yaz_set_proposal_charneg(odr_encode(),
2135 (const char**)&m_proxy_negotiation_charset,
2136 m_proxy_negotiation_charset ? 1:0,
2137 (const char**)&m_proxy_negotiation_lang,
2138 m_proxy_negotiation_lang ? 1:0,
2142 else if (m_initRequest_options &&
2143 ODR_MASK_GET(m_initRequest_options,
2144 Z_Options_negotiationModel) &&
2145 m_charset_converter->get_target_query_charset())
2147 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2149 m_charset_converter->get_target_query_charset());
2150 Z_InitRequest *initRequest = apdu->u.initRequest;
2151 Z_CharSetandLanguageNegotiation *negotiation =
2152 yaz_get_charneg_record (initRequest->otherInfo);
2154 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2156 NMEM nmem = nmem_create();
2157 char **charsets = 0;
2158 int num_charsets = 0;
2162 yaz_get_proposal_charneg (nmem, negotiation,
2163 &charsets, &num_charsets,
2164 &langs, &num_langs, &selected);
2166 for (i = 0; i<num_charsets; i++)
2167 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2169 for (i = 0; i<num_langs; i++)
2170 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2173 const char *t_charset =
2174 m_charset_converter->get_target_query_charset();
2175 // sweep through charsets and pick the first supported
2177 for (i = 0; i<num_charsets; i++)
2179 const char *c_charset = charsets[i];
2180 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2183 if (i != num_charsets)
2185 // got one .. set up ODR for reverse direction
2186 const char *c_charset = charsets[i];
2187 odr_set_charset(odr_encode(), c_charset, t_charset);
2188 m_charset_converter->set_client_query_charset(c_charset);
2189 m_charset_converter->set_client_charset_selected(selected);
2192 ODR_MASK_CLEAR(m_initRequest_options,
2193 Z_Options_negotiationModel);
2194 yaz_del_charneg_record(&initRequest->otherInfo);
2198 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2202 else if (m_charset_converter->get_target_query_charset() &&
2203 m_proxy_negotiation_default_charset)
2205 m_charset_converter->
2206 set_client_query_charset(m_proxy_negotiation_default_charset);
2209 else if (apdu->which == Z_APDU_initResponse)
2211 Z_InitResponse *initResponse = apdu->u.initResponse;
2212 Z_OtherInformation **otherInfo;
2213 get_otherInfoAPDU(apdu, &otherInfo);
2215 Z_CharSetandLanguageNegotiation *charneg = 0;
2217 if (otherInfo && *otherInfo &&
2218 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2219 && (charneg = yaz_get_charneg_record(*otherInfo)))
2225 yaz_get_response_charneg(m_referenceId_mem, charneg,
2226 &charset, &lang, &selected);
2228 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2229 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2231 if (m_initRequest_options &&
2232 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2234 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2237 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2239 // negotiation-charset, negotiation-lang
2240 // elements of config file in use.
2242 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2245 // clear negotiation option.
2246 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2248 // Delete negotiation (charneg-3) entry.
2249 yaz_del_charneg_record(otherInfo);
2254 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2256 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2259 else if (m_charset_converter->get_client_query_charset())
2261 Z_OtherInformation **otherInfo;
2262 Z_OtherInformationUnit *oi;
2263 get_otherInfoAPDU(apdu, &otherInfo);
2264 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2267 ODR_MASK_SET(initResponse->options,
2268 Z_Options_negotiationModel);
2269 if (m_initRequest_options)
2270 ODR_MASK_SET(m_initRequest_options,
2271 Z_Options_negotiationModel);
2273 oi->which = Z_OtherInfo_externallyDefinedInfo;
2274 oi->information.externallyDefinedInfo =
2275 yaz_set_response_charneg(
2277 m_charset_converter->get_client_query_charset(),
2279 m_charset_converter->get_client_charset_selected());
2286 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2288 const char *addinfo)
2290 Z_Records *rec = (Z_Records *)
2291 odr_malloc (odr, sizeof(*rec));
2293 odr_malloc (odr, sizeof(*err));
2294 Z_DiagRec *drec = (Z_DiagRec *)
2295 odr_malloc (odr, sizeof(*drec));
2296 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2297 odr_malloc (odr, sizeof(*dr));
2299 rec->which = Z_Records_NSD;
2300 rec->u.nonSurrogateDiagnostic = dr;
2301 dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
2302 dr->condition = err;
2303 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2304 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2308 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2310 if (apdu->which == Z_APDU_searchRequest &&
2311 apdu->u.searchRequest->query &&
2312 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2313 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2315 Z_RPNQuery *rpnquery = 0;
2316 Z_SearchRequest *sr = apdu->u.searchRequest;
2319 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2320 sr->query->u.type_104->u.cql);
2322 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2323 &rpnquery, odr_encode(),
2326 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2329 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2330 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2332 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2333 new_apdu->u.searchResponse->records =
2334 create_nonSurrogateDiagnostics(odr_encode(),
2335 yaz_diag_srw_to_bib1(r),
2337 *new_apdu->u.searchResponse->searchStatus = 0;
2339 send_to_client(new_apdu);
2345 sr->query->which = Z_Query_type_1;
2346 sr->query->u.type_1 = rpnquery;
2353 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2355 if (apdu->which == Z_APDU_searchRequest &&
2356 apdu->u.searchRequest->query)
2358 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2359 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2362 m_charset_converter->set_client_query_charset("UTF-8");
2363 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2364 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2371 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2373 if (apdu->which == Z_APDU_searchRequest)
2375 Z_SearchRequest *sr = apdu->u.searchRequest;
2379 Yaz_ProxyConfig *cfg = check_reconfigure();
2381 err = cfg->check_query(odr_encode(), m_default_target,
2382 sr->query, &addinfo);
2385 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2387 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2388 new_apdu->u.searchResponse->records =
2389 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2390 *new_apdu->u.searchResponse->searchStatus = 0;
2392 send_to_client(new_apdu);
2400 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2402 if (apdu->which != Z_APDU_initRequest)
2403 return 1; // pass if no init request
2404 Z_InitRequest *req = apdu->u.initRequest;
2406 Yaz_ProxyConfig *cfg = check_reconfigure();
2408 return 1; // pass if no config
2411 if (req->idAuthentication == 0)
2413 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2416 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2418 ret = cfg->client_authentication(
2420 req->idAuthentication->u.idPass->userId,
2421 req->idAuthentication->u.idPass->groupId,
2422 req->idAuthentication->u.idPass->password,
2425 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2427 char user[64], pass[64];
2430 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2431 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2435 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2440 int Yaz_Proxy::handle_global_authentication(Z_APDU *apdu)
2442 if (apdu->which != Z_APDU_initRequest)
2443 return 1; // pass if no init request
2444 Z_InitRequest *req = apdu->u.initRequest;
2446 Yaz_ProxyConfig *cfg = check_reconfigure();
2448 return 1; // pass if no config
2451 if (req->idAuthentication == 0)
2453 ret = cfg->global_client_authentication(0, 0, 0,
2456 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2458 ret = cfg->global_client_authentication(
2459 req->idAuthentication->u.idPass->userId,
2460 req->idAuthentication->u.idPass->groupId,
2461 req->idAuthentication->u.idPass->password,
2464 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2466 char user[64], pass[64];
2469 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2470 ret = cfg->global_client_authentication(user, 0, pass,
2474 ret = cfg->global_client_authentication(0, 0, 0, m_peername);
2478 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2480 m_marcxml_mode = none;
2481 if (apdu->which == Z_APDU_searchRequest)
2483 Z_SearchRequest *sr = apdu->u.searchRequest;
2486 Yaz_ProxyConfig *cfg = check_reconfigure();
2488 Z_RecordComposition rc_temp, *rc = 0;
2489 if (sr->smallSetElementSetNames)
2491 rc_temp.which = Z_RecordComp_simple;
2492 rc_temp.u.simple = sr->smallSetElementSetNames;
2496 if (sr->preferredRecordSyntax)
2497 oid_oidcpy(m_frontend_type, sr->preferredRecordSyntax);
2499 m_frontend_type[0] = -1;
2501 char *stylesheet_name = 0;
2503 err = cfg->check_syntax(odr_encode(),
2505 sr->preferredRecordSyntax, rc,
2506 &addinfo, &stylesheet_name, &m_schema,
2507 &m_backend_type, &m_backend_charset,
2508 &m_usemarcon_ini_stage1,
2509 &m_usemarcon_ini_stage2);
2510 if (stylesheet_name)
2512 m_parent->low_socket_close();
2515 if (m_stylesheet_xsp)
2516 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2517 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2520 m_stylesheet_offset = 0;
2521 xfree(stylesheet_name);
2523 m_parent->low_socket_open();
2527 sr->smallSetElementSetNames = 0;
2528 sr->mediumSetElementSetNames = 0;
2529 m_marcxml_mode = marcxml;
2530 sr->preferredRecordSyntax =
2531 yaz_string_to_oid_odr(
2532 yaz_oid_std(), CLASS_RECSYN,
2533 m_backend_type ? m_backend_type : "usmarc",
2538 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2540 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2541 new_apdu->u.searchResponse->records =
2542 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2543 *new_apdu->u.searchResponse->searchStatus = 0;
2545 send_to_client(new_apdu);
2549 else if (m_backend_type)
2551 sr->preferredRecordSyntax =
2552 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN,
2553 m_backend_type, odr_encode());
2556 else if (apdu->which == Z_APDU_presentRequest)
2558 Z_PresentRequest *pr = apdu->u.presentRequest;
2561 Yaz_ProxyConfig *cfg = check_reconfigure();
2563 if (pr->preferredRecordSyntax)
2564 oid_oidcpy(m_frontend_type, pr->preferredRecordSyntax);
2566 m_frontend_type[0] = -1;
2568 char *stylesheet_name = 0;
2570 err = cfg->check_syntax(odr_encode(), m_default_target,
2571 pr->preferredRecordSyntax,
2572 pr->recordComposition,
2573 &addinfo, &stylesheet_name, &m_schema,
2574 &m_backend_type, &m_backend_charset,
2575 &m_usemarcon_ini_stage1,
2576 &m_usemarcon_ini_stage2
2578 if (stylesheet_name)
2580 m_parent->low_socket_close();
2583 if (m_stylesheet_xsp)
2584 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2585 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2588 m_stylesheet_offset = 0;
2589 xfree(stylesheet_name);
2591 m_parent->low_socket_open();
2595 pr->recordComposition = 0;
2596 m_marcxml_mode = marcxml;
2598 pr->preferredRecordSyntax =
2599 yaz_string_to_oid_odr(
2600 yaz_oid_std(), CLASS_RECSYN,
2601 m_backend_type ? m_backend_type : "usmarc",
2606 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2608 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2609 new_apdu->u.presentResponse->records =
2610 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2611 *new_apdu->u.presentResponse->presentStatus =
2612 Z_PresentStatus_failure;
2614 send_to_client(new_apdu);
2618 else if (m_backend_type)
2620 pr->preferredRecordSyntax =
2621 yaz_string_to_oid_odr(yaz_oid_std(),
2622 CLASS_RECSYN, m_backend_type,
2629 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2633 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2634 odr_malloc(o, sizeof(Z_ElementSetNames));
2635 esn->which = Z_ElementSetNames_generic;
2636 esn->u.generic = odr_strdup(o, schema);
2640 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2643 Yaz_ProxyConfig *cfg = check_reconfigure();
2645 t = cfg->get_explain_name(db, backend_db);
2647 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2654 xfree(m_default_target);
2655 m_default_target = xstrdup(t);
2659 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2662 if (strcmp(hreq->method, "GET"))
2664 if (hreq->path[0] != '/')
2666 const char *cp = hreq->path;
2669 if (*cp == '/' && strchr("/.", cp[1]))
2674 Yaz_ProxyConfig *cfg = check_reconfigure();
2676 if (!cfg->get_file_access_info(hreq->path+1))
2679 const char *fname = hreq->path+1;
2680 if (stat(fname, &sbuf))
2682 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2686 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2688 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2691 if (sbuf.st_size > (off_t) 1000000)
2693 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2698 ODR o = odr_encode();
2700 const char *ctype = cfg->check_mime_type(fname);
2701 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2702 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2704 hres->version = odr_strdup(o, m_http_version);
2705 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2706 if (m_http_keepalive)
2707 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2711 hres->content_len = sbuf.st_size;
2712 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2713 FILE *f = fopen(fname, "rb");
2716 fread(hres->content_buf, 1, hres->content_len, f);
2723 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2725 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2729 send_GDU(gdu, &len);
2730 recv_GDU_more(true);
2734 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2738 odr_destroy(m_s2z_odr_init);
2741 if (m_s2z_odr_search)
2743 odr_destroy(m_s2z_odr_search);
2744 m_s2z_odr_search = 0;
2747 m_http_keepalive = 0;
2749 if (!strcmp(hreq->version, "1.0"))
2751 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2752 if (v && !strcmp(v, "Keep-Alive"))
2753 m_http_keepalive = 1;
2755 m_http_keepalive = 0;
2756 m_http_version = "1.0";
2760 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2761 if (v && !strcmp(v, "close"))
2762 m_http_keepalive = 0;
2764 m_http_keepalive = 1;
2765 m_http_version = "1.1";
2768 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2769 char authorization_str[255];
2770 *authorization_str = '\0';
2771 if (a && strncasecmp(a, "Basic ", 6) == 0)
2772 base64_decode(a + 6, authorization_str, 254);
2774 Z_SRW_PDU *srw_pdu = 0;
2775 Z_SOAP *soap_package = 0;
2777 Z_SRW_diagnostic *diagnostic = 0;
2778 int num_diagnostic = 0;
2780 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2782 if (file_access(hreq))
2786 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2788 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2789 &charset, &diagnostic, &num_diagnostic) == 0)
2791 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2792 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2793 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2794 m_s2z_init_apdu = 0;
2795 m_s2z_search_apdu = 0;
2796 m_s2z_present_apdu = 0;
2798 m_s2z_stylesheet = 0;
2800 Z_IdAuthentication *auth = NULL;
2801 if (srw_pdu->username && srw_pdu->password)
2803 yaz_log(YLOG_LOG, "username/password: %s/%s\n",
2804 srw_pdu->username, srw_pdu->password);
2805 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2806 auth->which = Z_IdAuthentication_idPass;
2807 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2808 auth->u.idPass->groupId = NULL;
2809 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, srw_pdu->password);
2810 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, srw_pdu->username);
2814 if (*authorization_str)
2816 yaz_log(YLOG_LOG, "authorization_str present: %s\n", authorization_str);
2817 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2818 auth->which = Z_IdAuthentication_idPass;
2819 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2820 auth->u.idPass->groupId = NULL;
2821 char *p = strchr(authorization_str, ':');
2826 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2828 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2832 // Use _client_ IP as shown in the log entries...!
2833 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2834 auth->which = Z_IdAuthentication_idPass;
2835 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2836 auth->u.idPass->groupId = NULL;
2837 auth->u.idPass->password = NULL;
2838 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, m_peername);
2842 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2845 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2847 const char *backend_db = srw_req->database;
2848 srw_get_client(srw_req->database, &backend_db);
2850 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2851 // recordXPath unsupported.
2852 if (srw_req->recordXPath)
2854 yaz_add_srw_diagnostic(odr_decode(),
2855 &diagnostic, &num_diagnostic,
2859 if (srw_req->sort_type != Z_SRW_sort_type_none)
2861 yaz_add_srw_diagnostic(odr_decode(),
2862 &diagnostic, &num_diagnostic,
2866 if (srw_req->stylesheet)
2868 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2870 // set packing for response records ..
2871 if (srw_req->recordPacking &&
2872 !strcmp(srw_req->recordPacking, "xml"))
2873 m_s2z_packing = Z_SRW_recordPacking_XML;
2875 m_s2z_packing = Z_SRW_recordPacking_string;
2879 Z_SRW_PDU *srw_pdu =
2880 yaz_srw_get(odr_encode(),
2881 Z_SRW_searchRetrieve_response);
2882 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2884 srw_res->diagnostics = diagnostic;
2885 srw_res->num_diagnostics = num_diagnostic;
2886 send_srw_response(srw_pdu);
2890 // prepare search PDU
2891 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2892 Z_APDU_searchRequest);
2893 Z_SearchRequest *z_searchRequest =
2894 m_s2z_search_apdu->u.searchRequest;
2896 z_searchRequest->num_databaseNames = 1;
2897 z_searchRequest->databaseNames = (char**)
2898 odr_malloc(m_s2z_odr_search, sizeof(char *));
2899 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2902 // query transformation
2903 Z_Query *query = (Z_Query *)
2904 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2905 z_searchRequest->query = query;
2907 if (srw_req->query_type == Z_SRW_query_type_cql)
2909 Z_External *ext = (Z_External *)
2910 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2911 ext->direct_reference =
2912 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2913 ext->indirect_reference = 0;
2914 ext->descriptor = 0;
2915 ext->which = Z_External_CQL;
2916 ext->u.cql = srw_req->query.cql;
2918 query->which = Z_Query_type_104;
2919 query->u.type_104 = ext;
2921 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2923 Z_RPNQuery *RPNquery;
2924 YAZ_PQF_Parser pqf_parser;
2926 pqf_parser = yaz_pqf_create ();
2928 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2929 srw_req->query.pqf);
2932 const char *pqf_msg;
2934 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2936 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2937 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2939 send_to_srw_client_error(10, 0);
2942 query->which = Z_Query_type_1;
2943 query->u.type_1 = RPNquery;
2945 yaz_pqf_destroy (pqf_parser);
2949 send_to_srw_client_error(7, "query");
2954 m_s2z_present_apdu = 0;
2956 if (srw_req->maximumRecords)
2957 max = *srw_req->maximumRecords;
2959 if (srw_req->startRecord)
2960 start = *srw_req->startRecord;
2963 // Some backend, such as Voyager doesn't honor piggyback
2964 // So we use present always (0 &&).
2965 if (0 && start <= 1) // Z39.50 piggyback
2967 *z_searchRequest->smallSetUpperBound = max;
2968 *z_searchRequest->mediumSetPresentNumber = max;
2969 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2971 z_searchRequest->preferredRecordSyntax =
2972 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2974 if (srw_req->recordSchema)
2976 z_searchRequest->smallSetElementSetNames =
2977 z_searchRequest->mediumSetElementSetNames =
2978 mk_esn_from_schema(m_s2z_odr_search,
2979 srw_req->recordSchema);
2982 else // Z39.50 present
2984 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2985 Z_APDU_presentRequest);
2986 Z_PresentRequest *z_presentRequest =
2987 m_s2z_present_apdu->u.presentRequest;
2988 *z_presentRequest->resultSetStartPoint = start;
2989 *z_presentRequest->numberOfRecordsRequested = max;
2991 z_presentRequest->preferredRecordSyntax =
2992 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2993 if (srw_req->recordSchema)
2995 z_presentRequest->recordComposition =
2996 (Z_RecordComposition *)
2997 odr_malloc(m_s2z_odr_search,
2998 sizeof(Z_RecordComposition));
2999 z_presentRequest->recordComposition->which =
3000 Z_RecordComp_simple;
3001 z_presentRequest->recordComposition->u.simple =
3002 mk_esn_from_schema(m_s2z_odr_search,
3003 srw_req->recordSchema);
3009 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3010 Z_APDU_initRequest);
3012 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3014 // prevent m_initRequest_apdu memory from being grabbed
3015 // in Yaz_Proxy::handle_incoming_Z_PDU
3016 m_initRequest_apdu = m_s2z_init_apdu;
3017 handle_incoming_Z_PDU(m_s2z_init_apdu);
3022 handle_incoming_Z_PDU(m_s2z_search_apdu);
3026 else if (srw_pdu->which == Z_SRW_explain_request)
3028 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
3030 const char *backend_db = srw_req->database;
3031 srw_get_client(srw_req->database, &backend_db);
3033 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3036 if (srw_req->stylesheet)
3038 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3040 if (srw_req->recordPacking &&
3041 !strcmp(srw_req->recordPacking, "xml"))
3042 m_s2z_packing = Z_SRW_recordPacking_XML;
3044 m_s2z_packing = Z_SRW_recordPacking_string;
3048 send_srw_explain_response(diagnostic, num_diagnostic);
3054 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3055 Z_APDU_initRequest);
3057 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3059 // prevent m_initRequest_apdu memory from being grabbed
3060 // in Yaz_Proxy::handle_incoming_Z_PDU
3061 m_initRequest_apdu = m_s2z_init_apdu;
3062 handle_incoming_Z_PDU(m_s2z_init_apdu);
3065 send_srw_explain_response(0, 0);
3068 else if (srw_pdu->which == Z_SRW_scan_request)
3070 m_s2z_database = odr_strdup(m_s2z_odr_init,
3071 srw_pdu->u.scan_request->database);
3073 yaz_add_srw_diagnostic(odr_decode(),
3074 &diagnostic, &num_diagnostic,
3076 Z_SRW_PDU *srw_pdu =
3077 yaz_srw_get(odr_encode(),
3078 Z_SRW_scan_response);
3079 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3081 srw_res->diagnostics = diagnostic;
3082 srw_res->num_diagnostics = num_diagnostic;
3083 send_srw_response(srw_pdu);
3090 send_to_srw_client_error(4, 0);
3093 send_http_response(400);
3096 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3099 Z_OtherInformation **oi;
3100 get_otherInfoAPDU(apdu, &oi);
3102 if (apdu->u.initRequest->implementationId)
3103 yaz_log(YLOG_LOG, "%simplementationId: %s",
3104 m_session_str, apdu->u.initRequest->implementationId);
3105 if (apdu->u.initRequest->implementationName)
3106 yaz_log(YLOG_LOG, "%simplementationName: %s",
3107 m_session_str, apdu->u.initRequest->implementationName);
3108 if (apdu->u.initRequest->implementationVersion)
3109 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3110 m_session_str, apdu->u.initRequest->implementationVersion);
3111 if (m_initRequest_apdu == 0)
3113 if (m_initRequest_mem)
3114 nmem_destroy(m_initRequest_mem);
3116 m_initRequest_apdu = apdu;
3117 m_initRequest_mem = odr_extract_mem(odr_decode());
3119 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3120 preferredMessageSize;
3121 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3122 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3124 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3126 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3127 yaz_get_charneg_record(*oi);
3129 // Save proposal charsets and langs.
3130 if (ODR_MASK_GET(apdu->u.initRequest->options,
3131 Z_Options_negotiationModel)
3132 && charSetandLangRecord)
3135 yaz_get_proposal_charneg(m_referenceId_mem,
3136 charSetandLangRecord,
3137 &m_initRequest_oi_negotiation_charsets,
3138 &m_initRequest_oi_negotiation_num_charsets,
3139 &m_initRequest_oi_negotiation_langs,
3140 &m_initRequest_oi_negotiation_num_langs,
3141 &m_initRequest_oi_negotiation_selected);
3143 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3145 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3146 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3147 m_initRequest_oi_negotiation_charsets[i]:"none");
3149 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3151 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3152 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3153 m_initRequest_oi_negotiation_langs[i]:"none");
3155 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3156 m_session_str, m_initRequest_oi_negotiation_selected);
3158 // save init options for the response..
3159 m_initRequest_options = apdu->u.initRequest->options;
3161 apdu->u.initRequest->options =
3162 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3163 sizeof(Odr_bitmask));
3164 ODR_MASK_ZERO(apdu->u.initRequest->options);
3166 for (i = 0; i<= 24; i++)
3167 ODR_MASK_SET(apdu->u.initRequest->options, i);
3168 // check negotiation option
3169 if (!ODR_MASK_GET(m_initRequest_options,
3170 Z_Options_negotiationModel))
3172 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3173 Z_Options_negotiationModel);
3175 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3176 Z_Options_concurrentOperations);
3178 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3179 apdu->u.initRequest->protocolVersion =
3180 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3181 sizeof(Odr_bitmask));
3182 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3184 for (i = 0; i<= 8; i++)
3185 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3187 handle_charset_lang_negotiation(apdu);
3188 if (m_client->m_init_flag)
3190 if (handle_init_response_for_invalid_session(apdu))
3192 if (m_client->m_initResponse)
3194 Z_APDU *apdu2 = m_client->m_initResponse;
3195 apdu2->u.initResponse->otherInfo = 0;
3196 if (m_client->m_cookie && *m_client->m_cookie)
3197 set_otherInformationString(apdu2, yaz_oid_userinfo_cookie,
3198 1, m_client->m_cookie);
3199 apdu2->u.initResponse->referenceId =
3200 apdu->u.initRequest->referenceId;
3201 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3202 apdu2->u.initResponse->protocolVersion =
3203 m_client->m_initResponse_version;
3205 handle_charset_lang_negotiation(apdu2);
3207 if (m_timeout_mode == timeout_busy)
3208 m_timeout_mode = timeout_normal;
3209 send_to_client(apdu2);
3213 m_client->m_init_flag = 1;
3215 if (m_num_msg_threads && m_my_thread)
3217 Auth_Msg *m = new Auth_Msg;
3219 z_APDU(odr_encode(), &apdu, 0, "encode");
3220 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3221 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3222 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3223 odr_reset(odr_encode());
3226 m_my_thread->put(m);
3230 int ret = handle_authentication(apdu);
3231 result_authentication(apdu, ret);
3235 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3237 Z_ReferenceId **refid = get_referenceIdP(apdu);
3238 nmem_reset(m_referenceId_mem);
3239 if (refid && *refid)
3241 m_referenceId = (Z_ReferenceId *)
3242 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3243 m_referenceId->len = m_referenceId->size = (*refid)->len;
3244 m_referenceId->buf = (unsigned char *)
3245 nmem_malloc(m_referenceId_mem, (*refid)->len);
3246 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3251 if (!m_client && m_flag_invalid_session)
3253 // Got request for a session that is invalid..
3254 m_apdu_invalid_session = apdu; // save package
3255 m_mem_invalid_session = odr_extract_mem(odr_decode());
3256 apdu = m_initRequest_apdu; // but throw an init to the target
3259 if (apdu->which == Z_APDU_searchRequest)
3260 m_search_stat.add_bytes(1);
3262 // Handle global authentication
3263 if (!handle_global_authentication(apdu))
3266 { // HTTP. Send unauthorized
3267 send_http_response(401);
3272 // Z39.50 just shutdown
3279 // Determine our client.
3280 Z_OtherInformation **oi;
3281 get_otherInfoAPDU(apdu, &oi);
3282 int http_code = 404;
3283 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi), &http_code);
3287 { // HTTP. Send not found
3288 send_http_response(http_code);
3293 // Z39.50 just shutdown
3299 m_client->m_server = this;
3301 if (apdu->which == Z_APDU_initRequest)
3304 handle_incoming_Z_PDU_2(apdu);
3307 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3309 handle_max_record_retrieve(apdu);
3312 apdu = handle_syntax_validation(apdu);
3315 apdu = handle_query_transformation(apdu);
3318 apdu = handle_target_charset_conversion(apdu);
3321 apdu = handle_query_validation(apdu);
3324 apdu = result_set_optimize(apdu);
3328 m_client->timeout(m_target_idletime); // mark it active even
3329 recv_GDU_more(true);
3330 // though we didn't use it
3334 // delete other info construct completely if 0 elements
3335 Z_OtherInformation **oi;
3336 get_otherInfoAPDU(apdu, &oi);
3337 if (oi && *oi && (*oi)->num_elements == 0)
3340 if (apdu->which == Z_APDU_presentRequest &&
3341 m_client->m_resultSetStartPoint == 0)
3343 Z_PresentRequest *pr = apdu->u.presentRequest;
3344 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3345 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3347 m_client->m_resultSetStartPoint = 0;
3349 if (m_client->send_to_target(apdu) < 0)
3351 m_client->shutdown();
3354 m_client->m_waiting = 1;
3357 void Yaz_Proxy::connectNotify()
3361 void Yaz_Proxy::releaseClient()
3363 xfree(m_proxyTarget);
3365 m_flag_invalid_session = 0;
3366 // only keep if keep_alive flag is set...
3368 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3369 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3370 m_client->m_waiting == 0)
3372 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3374 m_client->get_hostname());
3375 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3376 m_session_str, m_client->m_pdu_recv,
3377 m_client->m_bytes_sent + m_client->m_bytes_recv,
3378 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3379 assert (m_client->m_waiting != 2);
3380 // Tell client (if any) that no server connection is there..
3381 m_client->m_server = 0;
3386 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3388 m_client->get_hostname());
3389 assert (m_client->m_waiting != 2);
3395 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3401 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3405 m_parent->pre_init();
3408 bool Yaz_Proxy::dec_ref()
3410 m_http_keepalive = 0;
3413 if (m_ref_count > 0)
3422 const char *Yaz_ProxyClient::get_session_str()
3426 return m_server->get_session_str();
3429 void Yaz_ProxyClient::shutdown()
3431 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3436 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3437 m_server->dec_ref();
3443 void Yaz_Proxy::failNotify()
3446 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3450 void Yaz_Proxy::send_response_fail_client(const char *addr)
3454 Z_SRW_diagnostic *diagnostic = 0;
3455 int num_diagnostic = 0;
3457 yaz_add_srw_diagnostic(odr_encode(),
3458 &diagnostic, &num_diagnostic,
3459 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3460 if (m_s2z_search_apdu)
3461 send_srw_search_response(diagnostic, num_diagnostic);
3463 send_srw_explain_response(diagnostic, num_diagnostic);
3466 void Yaz_ProxyClient::failNotify()
3469 m_server->inc_request_no();
3470 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3471 get_session_str(), get_hostname());
3474 m_server->send_response_fail_client(get_hostname());
3478 void Yaz_ProxyClient::connectNotify()
3480 const char *s = get_session_str();
3481 const char *h = get_hostname();
3482 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3484 timeout(m_target_idletime);
3489 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3490 *the_PDU_Observable, int fd)
3492 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3495 Yaz_ProxyClient::~Yaz_ProxyClient()
3500 m_next->m_prev = m_prev;
3501 m_waiting = 2; // for debugging purposes only.
3502 odr_destroy(m_init_odr);
3503 odr_destroy(m_idAuthentication_odr);
3504 delete m_last_query;
3505 xfree (m_last_resultSetId);
3509 void Yaz_ProxyClient::pre_init_client()
3511 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3512 Z_InitRequest *req = apdu->u.initRequest;
3515 for (i = 0; i<= 24; i++)
3516 ODR_MASK_SET(req->options, i);
3517 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3518 Z_Options_negotiationModel);
3519 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3520 Z_Options_concurrentOperations);
3521 for (i = 0; i<= 10; i++)
3522 ODR_MASK_SET(req->protocolVersion, i);
3524 if (send_to_target(apdu) < 0)
3535 void Yaz_Proxy::pre_init()
3538 const char *name = 0;
3539 const char *zurl_in_use[MAX_ZURL_PLEX];
3540 int limit_bw, limit_pdu, limit_req, limit_search;
3541 int target_idletime, client_idletime;
3544 int keepalive_limit_bw, keepalive_limit_pdu;
3546 const char *cql2rpn = 0;
3547 const char *authentication = 0;
3548 const char *negotiation_charset = 0;
3549 const char *negotiation_lang = 0;
3551 Yaz_ProxyConfig *cfg = check_reconfigure();
3555 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3560 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3561 &limit_bw, &limit_pdu, &limit_req,
3563 &target_idletime, &client_idletime,
3566 &keepalive_limit_bw,
3567 &keepalive_limit_pdu,
3571 &negotiation_charset,
3579 for (j = 0; zurl_in_use[j]; j++)
3583 int spare_waiting = 0;
3586 for (c = m_clientPool; c; c = c->m_next)
3588 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3590 if (c->m_cookie == 0)
3592 if (c->m_server == 0)
3604 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3605 "sparew=%d preinit=%d",m_session_str,
3606 name, zurl_in_use[j], in_use, other,
3607 spare, spare_waiting, pre_init);
3608 if (spare + spare_waiting < pre_init
3609 && in_use + spare + spare_waiting + other < max_sockets)
3611 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3612 c->m_next = m_clientPool;
3614 c->m_next->m_prev = &c->m_next;
3616 c->m_prev = &m_clientPool;
3618 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3619 c->set_APDU_yazlog(1);
3621 c->set_APDU_yazlog(0);
3623 if (c->client(zurl_in_use[j]))
3631 c->m_target_idletime = target_idletime;
3632 c->m_seqno = m_seqno++;
3639 void Yaz_Proxy::timeoutNotify()
3644 switch(m_timeout_mode)
3646 case timeout_normal:
3650 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3653 case timeout_reduce:
3654 timeout(m_client_idletime);
3655 m_timeout_mode = timeout_busy;
3656 gdu = m_timeout_gdu;
3658 recv_GDU_normal(gdu);
3661 assert(m_stylesheet_nprl);
3662 convert_xsl_delay();
3663 recv_GDU_more(true);
3673 void Yaz_Proxy::markInvalid()
3676 m_flag_invalid_session = 1;
3679 void Yaz_ProxyClient::timeoutNotify()
3682 m_server->inc_request_no();
3684 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3688 m_server->send_response_fail_client(get_hostname());
3690 Yaz_Proxy *proxy_root = m_root;
3694 proxy_root->pre_init();
3697 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3698 Yaz_Proxy *parent) :
3699 Z_Assoc (the_PDU_Observable)
3706 m_last_resultSetId = 0;
3707 m_last_resultCount = 0;
3711 m_init_odr = odr_createmem (ODR_DECODE);
3713 m_initResponse_options = 0;
3714 m_initResponse_version = 0;
3715 m_initResponse_preferredMessageSize = 0;
3716 m_initResponse_maximumRecordSize = 0;
3717 m_resultSetStartPoint = 0;
3718 m_bytes_sent = m_bytes_recv = 0;
3722 m_target_idletime = 600;
3724 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3725 m_idAuthentication_ber_buf = 0;
3726 m_idAuthentication_ber_size = 0;
3729 const char *Yaz_Proxy::option(const char *name, const char *value)
3731 if (!strcmp (name, "optimize")) {
3734 m_optimize = xstrdup (value);
3741 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3746 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3748 if (apdu->which == Z_GDU_Z3950)
3749 recv_Z_PDU(apdu->u.z3950, len);
3750 else if (apdu->which == Z_GDU_HTTP_Response)
3751 recv_HTTP_response(apdu->u.HTTP_Response, len);
3756 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3758 if (!m_flag_invalid_session)
3760 m_flag_invalid_session = 0;
3761 handle_incoming_Z_PDU(m_apdu_invalid_session);
3762 assert (m_mem_invalid_session);
3763 nmem_destroy(m_mem_invalid_session);
3764 m_mem_invalid_session = 0;
3768 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3770 m_bytes_recv += len;
3774 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3775 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3776 apdu_name(apdu), get_hostname(), len);
3777 if (apdu->which == Z_APDU_initResponse)
3779 if (!m_server) // if this is a pre init session , check for more
3781 NMEM nmem = odr_extract_mem (odr_decode());
3782 odr_reset (m_init_odr);
3783 nmem_transfer (m_init_odr->mem, nmem);
3784 m_initResponse = apdu;
3785 m_initResponse_options = apdu->u.initResponse->options;
3786 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3787 m_initResponse_preferredMessageSize =
3788 *apdu->u.initResponse->preferredMessageSize;
3789 m_initResponse_maximumRecordSize =
3790 *apdu->u.initResponse->maximumRecordSize;
3792 Z_InitResponse *ir = apdu->u.initResponse;
3794 // apply YAZ Proxy version
3795 char *imv0 = ir->implementationVersion;
3796 char *imv1 = (char*)
3797 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3802 strcat(imv1, "/" VERSION);
3804 ir->implementationVersion = imv1;
3806 // apply YAZ Proxy implementation name
3807 char *im0 = ir->implementationName;
3809 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3816 strcat(im1, "(YAZ Proxy)");
3817 ir->implementationName = im1;
3819 nmem_destroy (nmem);
3821 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3824 if (apdu->which == Z_APDU_searchResponse)
3826 Z_SearchResponse *sr = apdu->u.searchResponse;
3827 m_last_resultCount = *sr->resultCount;
3828 int status = *sr->searchStatus;
3829 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3833 if (sr->records && sr->records->which == Z_Records_DBOSD)
3835 m_cache.add(odr_decode(),
3836 sr->records->u.databaseOrSurDiagnostics, 1,
3841 if (apdu->which == Z_APDU_presentResponse)
3843 Z_PresentResponse *pr = apdu->u.presentResponse;
3847 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3848 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3849 sr->referenceId = pr->referenceId;
3850 *sr->resultCount = m_last_resultCount;
3851 sr->records = pr->records;
3852 sr->nextResultSetPosition = pr->nextResultSetPosition;
3853 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3857 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3859 m_cache.add(odr_decode(),
3860 pr->records->u.databaseOrSurDiagnostics,
3861 m_resultSetStartPoint, -1);
3862 m_resultSetStartPoint = 0;
3866 set_otherInformationString(apdu, yaz_oid_userinfo_cookie, 1, m_cookie);
3868 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3871 server->send_to_client(apdu);
3872 if (apdu->which == Z_APDU_close)
3875 server->recv_GDU_more(true);
3878 void Yaz_Proxy::low_socket_close()
3883 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3884 if (m_lo_fd[i] >= 0)
3885 ::close(m_lo_fd[i]);
3889 void Yaz_Proxy::low_socket_open()
3894 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3895 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3899 int Yaz_Proxy::server(const char *addr)
3901 int r = Z_Assoc::server(addr);
3904 yaz_log(YLOG_LOG, "%sStarted proxy "
3908 " on %s", m_session_str, addr);
3914 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3916 const char *base64_chars =
3917 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3918 int len = strlen(base64);
3922 for (int pos = 0; pos <= len; pos++)
3924 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3927 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3930 char ch = (char) (ch_ptr - base64_chars);
3934 buf[buf_pos] = ch << 2;
3937 buf[buf_pos++] += (ch & 0x30) >> 4;
3938 buf[buf_pos] = (ch & 0x0f) << 4;
3941 buf[buf_pos++] += (ch & 0x3c) >> 2;
3942 buf[buf_pos] = (ch & 0x03) << 6;
3945 buf[buf_pos++] += ch;
3952 buf[buf_pos] = '\0';
3958 * indent-tabs-mode: nil
3960 * vim: shiftwidth=4 tabstop=8 expandtab