1 /* $Id: yaz-proxy.cpp,v 1.78 2008-02-21 09:33:23 adam Exp $
2 Copyright (c) 1998-2007, 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_optimize = xstrdup ("1");
224 strcpy(m_session_str, "0 ");
232 m_max_connect_period = 0;
234 m_limit_connect_period = 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;
254 m_frontend_type[0] = -1;
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;
294 m_num_msg_threads = 0;
297 void Yaz_Proxy::inc_ref()
302 Yaz_Proxy::~Yaz_Proxy()
304 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
305 m_bytes_sent, m_bytes_recv);
306 nmem_destroy(m_initRequest_mem);
307 nmem_destroy(m_mem_invalid_session);
308 nmem_destroy(m_referenceId_mem);
310 xfree(m_proxyTarget);
311 xfree(m_default_target);
312 xfree(m_proxy_negotiation_charset);
313 xfree(m_proxy_negotiation_lang);
314 xfree(m_proxy_negotiation_default_charset);
315 delete m_charset_converter;
319 if (m_stylesheet_xsp)
320 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
326 xfree (m_backend_type);
327 xfree (m_backend_charset);
328 xfree (m_usemarcon_ini_stage1);
329 xfree (m_usemarcon_ini_stage2);
332 odr_destroy(m_s2z_odr_init);
333 if (m_s2z_odr_search)
334 odr_destroy(m_s2z_odr_search);
342 void Yaz_Proxy::set_debug_mode(int mode)
347 int Yaz_Proxy::set_config(const char *config)
350 m_config = new Yaz_ProxyConfig();
351 xfree(m_config_fname);
352 m_config_fname = xstrdup(config);
353 int r = m_config->read_xml(config);
357 m_config->get_generic_info(&m_log_mask, &m_max_clients,
358 &m_max_connect, &m_limit_connect, &period,
360 m_connect.set_period(period);
365 void Yaz_Proxy::set_default_target(const char *target)
367 xfree (m_default_target);
368 m_default_target = 0;
370 m_default_target = (char *) xstrdup (target);
373 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
374 const char *default_charset)
376 yaz_log(YLOG_DEBUG, "%sSet the proxy negotiation: charset to '%s', "
377 "default charset to '%s', language to '%s'", m_session_str,
378 charset?charset:"none",
379 default_charset?default_charset:"none",
381 xfree (m_proxy_negotiation_charset);
382 xfree (m_proxy_negotiation_lang);
383 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
385 m_proxy_negotiation_charset = (char *) xstrdup (charset);
387 m_proxy_negotiation_lang = (char *) xstrdup (lang);
389 m_proxy_negotiation_default_charset =
390 (char *) xstrdup (default_charset);
393 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
396 return m_parent->check_reconfigure();
398 Yaz_ProxyConfig *cfg = m_config;
401 yaz_log(YLOG_LOG, "reconfigure");
402 if (m_config_fname && cfg)
404 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
405 int r = cfg->read_xml(m_config_fname);
407 yaz_log(YLOG_WARN, "reconfigure failed");
412 cfg->get_generic_info(&m_log_mask, &m_max_clients,
413 &m_max_connect, &m_limit_connect,
414 &period, &m_num_msg_threads);
415 m_connect.set_period(period);
419 yaz_log(YLOG_LOG, "reconfigure");
425 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
426 *the_PDU_Observable, int fd)
430 char session_str[200];
431 const char *peername = the_PDU_Observable->getpeername();
433 peername = "nullpeer";
435 if (m_log_mask & PROXY_LOG_IP_CLIENT)
436 sprintf(session_str, "%ld:%d %.80s %d ",
437 (long) time(0), m_session_no, peername, 0);
439 sprintf(session_str, "%ld:%d %d ",
440 (long) time(0), m_session_no, 0);
443 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
445 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
446 m_socket_observable, this);
448 new_proxy->m_config = 0;
449 new_proxy->m_config_fname = 0;
450 new_proxy->timeout(m_client_idletime);
451 new_proxy->m_target_idletime = m_target_idletime;
452 new_proxy->set_default_target(m_default_target);
453 new_proxy->m_max_clients = m_max_clients;
454 new_proxy->m_log_mask = m_log_mask;
455 new_proxy->m_session_no = m_session_no;
456 new_proxy->m_num_msg_threads = m_num_msg_threads;
459 // in case we want to watch a particular client..
460 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
461 new_proxy->m_log_mask = 255;
464 new_proxy->set_APDU_log(get_APDU_log());
465 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
466 new_proxy->set_APDU_yazlog(1);
468 new_proxy->set_APDU_yazlog(0);
469 strcpy(new_proxy->m_session_str, session_str);
470 new_proxy->m_peername = xstrdup(peername);
471 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
472 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
473 // create thread object the first time we get an incoming connection
474 if (!m_my_thread && m_num_msg_threads > 0)
476 yaz_log (YLOG_LOG, "%sStarting message thread management. number=%d",
477 session_str, m_num_msg_threads);
478 m_my_thread = new Msg_Thread(m_socket_observable, m_num_msg_threads);
480 new_proxy->m_my_thread = m_my_thread;
484 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
486 Z_OtherInformationUnit *oi =
487 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_cookie, 1, 1);
489 if (oi && oi->which == Z_OtherInfo_characterInfo)
490 return oi->information.characterInfo;
494 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
496 Z_OtherInformationUnit *oi =
497 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_proxy, 1, 1);
499 if (oi && oi->which == Z_OtherInfo_characterInfo)
500 return oi->information.characterInfo;
503 const char *Yaz_Proxy::load_balance(const char **url)
505 int zurl_in_use[MAX_ZURL_PLEX];
506 int zurl_in_spare[MAX_ZURL_PLEX];
510 for (i = 0; i<MAX_ZURL_PLEX; i++)
513 zurl_in_spare[i] = 0;
515 for (c = m_parent->m_clientPool; c; c = c->m_next)
517 for (i = 0; url[i]; i++)
518 if (!strcmp(url[i], c->get_hostname()))
521 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
525 int min_use = 100000;
526 int spare_for_min = 0;
528 const char *ret_min = 0;
529 const char *ret_spare = 0;
530 for (i = 0; url[i]; i++)
532 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
533 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
534 if (min_use > zurl_in_use[i])
537 min_use = zurl_in_use[i];
538 spare_for_min = zurl_in_spare[i];
540 if (max_spare < zurl_in_spare[i])
543 max_spare = zurl_in_spare[i];
549 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
550 const char *proxy_host)
553 Yaz_Proxy *parent = m_parent;
554 Yaz_ProxyClient *c = m_client;
558 const char *url[MAX_ZURL_PLEX];
559 Yaz_ProxyConfig *cfg = check_reconfigure();
562 if (parent && parent->m_debug_mode)
564 // only to be enabled for debugging...
565 if (!strcmp(proxy_host, "stop"))
568 xfree(m_default_target);
569 m_default_target = xstrdup(proxy_host);
571 proxy_host = m_default_target;
572 int client_idletime = -1;
573 const char *cql2rpn_fname = 0;
574 const char *negotiation_charset = 0;
575 const char *negotiation_lang = 0;
576 const char *query_charset = 0;
577 const char *default_client_query_charset = 0;
578 url[0] = m_default_target;
583 cfg->get_target_info(proxy_host, url, &m_bw_max,
584 &m_pdu_max, &m_max_record_retrieve,
586 &m_target_idletime, &client_idletime,
587 &parent->m_max_clients,
588 &m_keepalive_limit_bw,
589 &m_keepalive_limit_pdu,
592 &negotiation_charset,
595 &default_client_query_charset);
597 if (client_idletime != -1)
599 m_client_idletime = client_idletime;
600 timeout(m_client_idletime);
603 // get those FILE descriptors available
604 m_parent->low_socket_close();
606 m_cql2rpn.set_pqf_file(cql2rpn_fname);
607 // reserve them again
608 m_parent->low_socket_open();
610 if (negotiation_charset || negotiation_lang || default_client_query_charset)
612 set_proxy_negotiation(negotiation_charset,
613 negotiation_lang, default_client_query_charset);
615 m_charset_converter->set_target_query_charset(query_charset);
618 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
621 // we don't handle multiplexing for cookie session, so we just
622 // pick the first one in this case (anonymous users will be able
623 // to use any backend)
624 if (cookie && *cookie)
625 m_proxyTarget = (char*) xstrdup(url[0]);
627 m_proxyTarget = (char*) xstrdup(load_balance(url));
629 if (cookie && *cookie)
630 { // search in sessions with a cookie
631 for (c = parent->m_clientPool; c; c = c->m_next)
634 assert (*c->m_prev == c);
635 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
636 !strcmp(m_proxyTarget, c->get_hostname()))
639 // The following handles "cancel"
640 // If connection is busy (waiting for PDU) and
641 // we have an initRequest we can safely do re-open
642 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
644 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
651 c->m_last_resultCount = 0;
652 c->m_sr_transform = 0;
654 c->m_resultSetStartPoint = 0;
655 c->m_target_idletime = m_target_idletime;
656 if (c->client(m_proxyTarget))
663 c->m_seqno = parent->m_seqno;
664 if (c->m_server && c->m_server != this)
665 c->m_server->m_client = 0;
668 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
673 else if (!c && apdu->which == Z_APDU_initRequest )
675 // anonymous sessions without cookie.
676 // if authentication is set it is NOT anonymous se we can't share them.
677 // If charset and lang negotiation is use it is NOT anonymous session too.
678 for (c = parent->m_clientPool; c; c = c->m_next)
681 assert(*c->m_prev == c);
682 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
683 && c->compare_idAuthentication(apdu)
684 && c->compare_charset(apdu)
685 && !strcmp(m_proxyTarget, c->get_hostname()))
688 yaz_log (YLOG_LOG, "%sREUSE %d %s",
689 m_session_str, parent->m_seqno, c->get_hostname());
691 c->m_seqno = parent->m_seqno;
692 assert(c->m_server == 0);
695 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
696 c->set_APDU_yazlog(1);
698 c->set_APDU_yazlog(0);
710 if (apdu->which != Z_APDU_initRequest)
712 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
715 // go through list of clients - and find the lowest/oldest one.
716 Yaz_ProxyClient *c_min = 0;
718 int no_of_clients = 0;
719 if (parent->m_clientPool)
720 yaz_log (YLOG_DEBUG, "Existing sessions");
721 for (c = parent->m_clientPool; c; c = c->m_next)
723 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
724 c->m_waiting, c->get_hostname(),
725 c->m_cookie ? c->m_cookie : "");
727 if (min_seq < 0 || c->m_seqno < min_seq)
729 min_seq = c->m_seqno;
733 if (no_of_clients >= parent->m_max_clients)
736 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
738 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
739 m_session_str, parent->m_max_clients, c->m_seqno);
740 if (c->m_server && c->m_server != this)
741 c->m_server->dec_ref();
745 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
746 m_session_str, parent->m_max_clients,
747 c->m_seqno, parent->m_seqno, c->get_hostname());
751 c->m_cookie = xstrdup(cookie);
752 c->m_seqno = parent->m_seqno;
753 if (c->m_server && c->m_server != this)
755 c->m_server->m_client = 0;
756 c->m_server->dec_ref();
759 c->m_target_idletime = m_target_idletime;
760 c->timeout(m_target_idletime);
762 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
763 c->set_APDU_yazlog(1);
765 c->set_APDU_yazlog(0);
772 yaz_log (YLOG_LOG, "%sNEW %d %s",
773 m_session_str, parent->m_seqno, m_proxyTarget);
774 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
775 c->m_next = parent->m_clientPool;
777 c->m_next->m_prev = &c->m_next;
778 parent->m_clientPool = c;
779 c->m_prev = &parent->m_clientPool;
785 c->m_cookie = xstrdup(cookie);
787 c->m_seqno = parent->m_seqno;
789 c->m_last_resultCount = 0;
792 c->m_sr_transform = 0;
794 c->m_resultSetStartPoint = 0;
796 if (c->client(m_proxyTarget))
801 c->m_target_idletime = m_target_idletime;
804 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
805 c->set_APDU_yazlog(1);
807 c->set_APDU_yazlog(0);
809 c->set_idAuthentication(apdu);
811 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
815 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
818 for (i = 0; i<num; i++)
820 Z_DefaultDiagFormat *r;
821 Z_DiagRec *p = pp[i];
822 if (p->which != Z_DiagRec_defaultFormat)
824 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
828 r = p->u.defaultFormat;
831 case Z_DefaultDiagFormat_v2Addinfo:
832 yaz_log(YLOG_LOG, "%sError %d %s:%s",
834 *r->condition, diagbib1_str(*r->condition),
837 case Z_DefaultDiagFormat_v3Addinfo:
838 yaz_log(YLOG_LOG, "%sError %d %s:%s",
840 *r->condition, diagbib1_str(*r->condition),
847 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
849 if (!m_stylesheet_xsp || p->num_records <= 0)
851 return 0; /* no XSLT to be done ... */
854 m_stylesheet_offset = 0;
855 m_stylesheet_nprl = p;
856 m_stylesheet_apdu = apdu;
857 m_timeout_mode = timeout_xsl;
863 void Yaz_Proxy::convert_xsl_delay()
866 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
867 if (npr->which == Z_NamePlusRecord_databaseRecord)
869 Z_External *r = npr->u.databaseRecord;
870 if (r->which == Z_External_octet)
873 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
875 xmlDocPtr res, doc = xmlParseMemory(
876 (char*) r->u.octet_aligned->buf,
877 r->u.octet_aligned->len);
880 yaz_log(YLOG_LOG, "%sXSLT convert %d",
881 m_session_str, m_stylesheet_offset);
882 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
889 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
890 m_stylesheet_nprl->records[m_stylesheet_offset]->
892 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
893 (char*) out_buf, out_len);
902 m_stylesheet_offset++;
903 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
905 m_timeout_mode = timeout_normal;
906 m_stylesheet_nprl = 0;
908 if (m_stylesheet_xsp)
909 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
911 m_stylesheet_xsp = 0;
912 timeout(m_client_idletime);
913 send_PDU_convert(m_stylesheet_apdu);
919 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
921 if (m_frontend_type[0] != -1)
924 for (i = 0; i < p->num_records; i++)
926 Z_NamePlusRecord *npr = p->records[i];
927 if (npr->which == Z_NamePlusRecord_databaseRecord)
929 Z_External *r = npr->u.databaseRecord;
930 if (r->which == Z_External_octet)
933 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
935 if (!m_usemarcon->m_stage1)
937 m_usemarcon->m_stage1 = new CDetails();
939 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
940 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
941 int res = m_usemarcon->m_stage1->Start();
946 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
947 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
949 if (!m_usemarcon->m_stage2)
951 m_usemarcon->m_stage2 = new CDetails();
953 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
954 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
955 res = m_usemarcon->m_stage2->Start();
959 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
963 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
966 npr->u.databaseRecord =
967 z_ext_record_oid(odr_encode(),
975 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
981 npr->u.databaseRecord =
982 z_ext_record_oid(odr_encode(),
984 (char*) r->u.octet_aligned->buf,
985 r->u.octet_aligned->len);
992 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
993 const char *backend_charset)
995 int sel = m_charset_converter->get_client_charset_selected();
996 const char *client_record_charset =
997 m_charset_converter->get_client_query_charset();
998 if (sel && backend_charset && client_record_charset &&
999 strcmp(backend_charset, client_record_charset))
1002 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1004 yaz_marc_t mt = yaz_marc_create();
1005 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1006 yaz_marc_iconv(mt, cd);
1007 for (i = 0; i < p->num_records; i++)
1009 Z_NamePlusRecord *npr = p->records[i];
1010 if (npr->which == Z_NamePlusRecord_databaseRecord)
1012 Z_External *r = npr->u.databaseRecord;
1013 const Odr_oid *oid = r->direct_reference;
1017 if (!oid_oidcmp(oid, yaz_oid_recsyn_sutrs))
1019 WRBUF w = wrbuf_alloc();
1021 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1022 r->u.octet_aligned->len);
1023 npr->u.databaseRecord =
1024 z_ext_record_oid(odr_encode(), oid, wrbuf_buf(w),
1028 else if (!oid_oidcmp(oid, yaz_oid_recsyn_xml))
1032 else if (r->which == Z_External_octet)
1036 if (yaz_marc_decode_buf(mt,
1037 (char*) r->u.octet_aligned->buf,
1038 r->u.octet_aligned->len,
1041 npr->u.databaseRecord =
1042 z_ext_record_oid(odr_encode(), oid, result, rlen);
1043 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1050 yaz_iconv_close(cd);
1051 yaz_marc_destroy(mt);
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_oid(
1077 odr_encode(), yaz_oid_recsyn_xml,
1078 wrbuf_buf(w), wrbuf_len(w));
1081 else if (r->which == Z_External_octet)
1085 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1086 r->u.octet_aligned->len,
1089 npr->u.databaseRecord =
1090 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
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 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate",
1133 "Basic realm=\"YAZ Proxy\"");
1136 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1138 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1142 int r = send_GDU(gdu, &len);
1143 m_bytes_sent += len;
1144 m_bw_stat.add_bytes(len);
1147 recv_GDU_more(true);
1152 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1154 ODR o = odr_encode();
1155 const char *ctype = "text/xml";
1156 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1157 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1159 hres->version = odr_strdup(o, m_http_version);
1160 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1161 if (m_http_keepalive)
1162 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1165 if (http_code == 401)
1166 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1168 static Z_SOAP_Handler soap_handlers[2] = {
1170 {"http://www.loc.gov/zing/srw/", 0,
1171 (Z_SOAP_fun) yaz_srw_codec},
1176 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1177 soap_package->which = Z_SOAP_generic;
1178 soap_package->u.generic =
1179 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1180 soap_package->u.generic->no = 0;
1181 soap_package->u.generic->ns = soap_handlers[0].ns;
1182 soap_package->u.generic->p = (void *) srw_pdu;
1183 soap_package->ns = m_soap_ns;
1184 z_soap_codec_enc_xsl(o, &soap_package,
1185 &hres->content_buf, &hres->content_len,
1186 soap_handlers, 0, m_s2z_stylesheet);
1187 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1189 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1193 int r = send_GDU(gdu, &len);
1194 m_bytes_sent += len;
1195 m_bw_stat.add_bytes(len);
1198 recv_GDU_more(true);
1203 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1205 ODR o = odr_encode();
1206 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1207 odr_malloc(o, sizeof(*diagnostic));
1208 int num_diagnostic = 1;
1209 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1210 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1213 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1214 Z_DefaultDiagFormat *ddf)
1216 int bib1_code = *ddf->condition;
1217 if (bib1_code == 109)
1219 srw_res->num_diagnostics = 1;
1220 srw_res->diagnostics = (Z_SRW_diagnostic *)
1221 odr_malloc(o, sizeof(*srw_res->diagnostics));
1222 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1223 yaz_diag_bib1_to_srw(*ddf->condition),
1228 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1230 ODR o = odr_encode();
1231 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1232 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1234 srw_res->numberOfRecords = odr_intdup (o, hits);
1235 if (records && records->which == Z_Records_DBOSD)
1237 srw_res->num_records =
1238 records->u.databaseOrSurDiagnostics->num_records;
1240 srw_res->records = (Z_SRW_record *)
1241 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1242 for (i = 0; i < srw_res->num_records; i++)
1244 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1245 if (npr->which != Z_NamePlusRecord_databaseRecord)
1247 srw_res->records[i].recordSchema = "diagnostic";
1248 srw_res->records[i].recordPacking = m_s2z_packing;
1249 srw_res->records[i].recordData_buf = "67";
1250 srw_res->records[i].recordData_len = 2;
1251 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1254 Z_External *r = npr->u.databaseRecord;
1256 if (r->which == Z_External_octet
1257 && !oid_oidcmp(r->direct_reference, yaz_oid_recsyn_xml))
1259 srw_res->records[i].recordSchema = m_schema;
1260 srw_res->records[i].recordPacking = m_s2z_packing;
1261 srw_res->records[i].recordData_buf = (char*)
1262 r->u.octet_aligned->buf;
1263 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1264 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1268 srw_res->records[i].recordSchema = "diagnostic";
1269 srw_res->records[i].recordPacking = m_s2z_packing;
1270 srw_res->records[i].recordData_buf = "67";
1271 srw_res->records[i].recordData_len = 2;
1272 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1276 if (records && records->which == Z_Records_NSD)
1279 http_code = z_to_srw_diag(odr_encode(), srw_res,
1280 records->u.nonSurrogateDiagnostic);
1282 return send_http_response(http_code);
1284 return send_srw_response(srw_pdu);
1288 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1289 int num_diagnostics, int http_code /* = 200 */)
1291 ODR o = odr_encode();
1292 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1293 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1295 srw_res->num_diagnostics = num_diagnostics;
1296 srw_res->diagnostics = diagnostics;
1297 return send_srw_response(srw_pdu, http_code);
1300 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1301 int num_diagnostics)
1303 Yaz_ProxyConfig *cfg = check_reconfigure();
1307 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1308 m_s2z_database, &len);
1311 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1312 Z_SRW_explainResponse *er = res->u.explain_response;
1314 er->record.recordData_buf = b;
1315 er->record.recordData_len = len;
1316 er->record.recordPacking = m_s2z_packing;
1317 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1319 er->diagnostics = diagnostics;
1320 er->num_diagnostics = num_diagnostics;
1321 return send_srw_response(res);
1324 return send_http_response(404);
1327 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1331 if (apdu->which == Z_APDU_initResponse)
1333 Z_InitResponse *res = apdu->u.initResponse;
1334 if (*res->result == 0)
1336 send_to_srw_client_error(3, 0);
1338 else if (!m_s2z_search_apdu)
1340 send_srw_explain_response(0, 0);
1344 handle_incoming_Z_PDU(m_s2z_search_apdu);
1347 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1349 m_s2z_search_apdu = 0;
1350 Z_SearchResponse *res = apdu->u.searchResponse;
1351 m_s2z_hit_count = *res->resultCount;
1352 if (res->records && res->records->which == Z_Records_NSD)
1354 send_to_srw_client_ok(0, res->records, 1);
1356 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1359 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1361 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1363 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1365 *pr->numberOfRecordsRequested =
1366 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1368 handle_incoming_Z_PDU(m_s2z_present_apdu);
1372 m_s2z_present_apdu = 0;
1373 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1376 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1379 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1381 m_s2z_present_apdu = 0;
1382 Z_PresentResponse *res = apdu->u.presentResponse;
1383 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1389 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1390 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1392 int r = send_Z_PDU(apdu, &len);
1393 m_bytes_sent += len;
1394 m_bw_stat.add_bytes(len);
1401 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1403 int kill_session = 0;
1404 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1407 *new_id = m_referenceId;
1409 if (apdu->which == Z_APDU_searchResponse)
1411 Z_SearchResponse *sr = apdu->u.searchResponse;
1412 Z_Records *p = sr->records;
1413 if (p && p->which == Z_Records_NSD)
1415 Z_DiagRec dr, *dr_p = &dr;
1416 dr.which = Z_DiagRec_defaultFormat;
1417 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1419 *sr->searchStatus = 0;
1420 display_diagrecs(&dr_p, 1);
1424 if (p && p->which == Z_Records_DBOSD)
1428 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1431 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1432 if (m_marcxml_mode == marcxml)
1433 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1436 convert_records_charset(p->u.databaseOrSurDiagnostics,
1438 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1442 if (sr->resultCount)
1444 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1446 if (*sr->resultCount < 0)
1448 m_flag_invalid_session = 1;
1451 *sr->searchStatus = 0;
1453 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1454 *sr->resultCount = 0;
1459 else if (apdu->which == Z_APDU_presentResponse)
1461 Z_PresentResponse *sr = apdu->u.presentResponse;
1462 Z_Records *p = sr->records;
1463 if (p && p->which == Z_Records_NSD)
1465 Z_DiagRec dr, *dr_p = &dr;
1466 dr.which = Z_DiagRec_defaultFormat;
1467 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1468 if (*sr->presentStatus == Z_PresentStatus_success)
1469 *sr->presentStatus = Z_PresentStatus_failure;
1470 display_diagrecs(&dr_p, 1);
1472 if (p && p->which == Z_Records_DBOSD)
1476 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1479 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1480 if (m_marcxml_mode == marcxml)
1481 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1484 convert_records_charset(p->u.databaseOrSurDiagnostics,
1486 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1490 else if (apdu->which == Z_APDU_initResponse)
1492 //Get and check negotiation record
1493 //from init response.
1494 handle_charset_lang_negotiation(apdu);
1496 if (m_initRequest_options)
1499 (Odr_bitmask *)odr_malloc(odr_encode(),
1500 sizeof(Odr_bitmask));
1501 ODR_MASK_ZERO(nopt);
1504 for (i = 0; i<24; i++)
1505 if (ODR_MASK_GET(m_initRequest_options, i) &&
1506 ODR_MASK_GET(apdu->u.initResponse->options, i))
1507 ODR_MASK_SET(nopt, i);
1508 apdu->u.initResponse->options = nopt;
1510 if (m_initRequest_version)
1512 Z_ProtocolVersion *nopt =
1513 (Odr_bitmask *)odr_malloc(odr_encode(),
1514 sizeof(Odr_bitmask));
1515 ODR_MASK_ZERO(nopt);
1518 for (i = 0; i<8; i++)
1519 if (ODR_MASK_GET(m_initRequest_version, i) &&
1520 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1521 ODR_MASK_SET(nopt, i);
1522 apdu->u.initResponse->protocolVersion = nopt;
1524 apdu->u.initResponse->preferredMessageSize =
1525 odr_intdup(odr_encode(),
1526 m_client->m_initResponse_preferredMessageSize >
1527 m_initRequest_preferredMessageSize ?
1528 m_initRequest_preferredMessageSize :
1529 m_client->m_initResponse_preferredMessageSize);
1530 apdu->u.initResponse->maximumRecordSize =
1531 odr_intdup(odr_encode(),
1532 m_client->m_initResponse_maximumRecordSize >
1533 m_initRequest_maximumRecordSize ?
1534 m_initRequest_maximumRecordSize :
1535 m_client->m_initResponse_maximumRecordSize);
1538 int r = send_PDU_convert(apdu);
1545 m_parent->pre_init();
1550 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1552 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1554 odr_reset(m_idAuthentication_odr);
1555 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1556 m_idAuthentication_ber_buf =
1557 odr_getbuf(m_idAuthentication_odr,
1558 &m_idAuthentication_ber_size, 0);
1561 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1566 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1568 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1569 ODR odr = odr_createmem(ODR_ENCODE);
1571 z_IdAuthentication(odr, &t, 1, 0);
1573 char *buf = odr_getbuf(odr, &sz, 0);
1574 if (buf && m_idAuthentication_ber_buf
1575 && sz == m_idAuthentication_ber_size
1576 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1582 if (!buf && !m_idAuthentication_ber_buf)
1587 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1590 const char *apdu_name_tmp = apdu_name(apdu);
1591 int r = send_Z_PDU(apdu, &len);
1592 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1593 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1595 apdu_name_tmp, get_hostname(), len);
1596 m_bytes_sent += len;
1600 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1602 if (apdu->which == Z_APDU_presentRequest)
1604 Z_PresentRequest *pr = apdu->u.presentRequest;
1605 int toget = *pr->numberOfRecordsRequested;
1606 int start = *pr->resultSetStartPoint;
1608 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1609 pr->resultSetId, start, toget);
1611 if (*m_parent->m_optimize == '0')
1614 if (!m_client->m_last_resultSetId)
1616 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1617 new_apdu->u.presentResponse->records =
1618 create_nonSurrogateDiagnostics(
1620 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1622 send_to_client(new_apdu);
1625 if (start < 1 || toget < 0)
1627 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1628 new_apdu->u.presentResponse->records =
1629 create_nonSurrogateDiagnostics(
1631 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1633 send_to_client(new_apdu);
1636 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1638 if (start+toget-1 > m_client->m_last_resultCount)
1640 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1641 new_apdu->u.presentResponse->records =
1642 create_nonSurrogateDiagnostics(
1644 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1646 send_to_client(new_apdu);
1649 Z_NamePlusRecordList *npr;
1651 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1652 m_session_str, start, toget, yaz_z3950oid_to_str(
1653 pr->preferredRecordSyntax, &oclass));
1655 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1656 pr->preferredRecordSyntax,
1657 pr->recordComposition))
1659 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1661 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1662 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1664 new_apdu->u.presentResponse->numberOfRecordsReturned
1665 = odr_intdup(odr_encode(), toget);
1667 new_apdu->u.presentResponse->records = (Z_Records*)
1668 odr_malloc(odr_encode(), sizeof(Z_Records));
1669 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1670 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1671 new_apdu->u.presentResponse->nextResultSetPosition =
1672 odr_intdup(odr_encode(), start+toget);
1674 send_to_client(new_apdu);
1680 if (apdu->which != Z_APDU_searchRequest)
1682 Z_SearchRequest *sr = apdu->u.searchRequest;
1683 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1684 Yaz_Z_Databases this_databases;
1686 this_databases.set(sr->num_databaseNames, (const char **)
1689 this_query->set_Z_Query(sr->query);
1691 // Check for non-negative piggyback params.
1692 if (*sr->smallSetUpperBound < 0
1693 || *sr->largeSetLowerBound < 0
1694 || *sr->mediumSetPresentNumber < 0)
1696 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1697 // Not a present request.. But can't find better diagnostic
1698 new_apdu->u.searchResponse->records =
1699 create_nonSurrogateDiagnostics(
1701 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1702 send_to_client(new_apdu);
1706 char query_str[4096];
1707 this_query->print(query_str, sizeof(query_str)-1);
1708 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1710 if (*m_parent->m_optimize != '0' &&
1711 m_client->m_last_ok && m_client->m_last_query &&
1712 m_client->m_last_query->match(this_query) &&
1713 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1714 m_client->m_last_databases.match(this_databases))
1717 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1718 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1720 Z_NamePlusRecordList *npr;
1721 int toget = *sr->mediumSetPresentNumber;
1722 Z_RecordComposition *comp = 0;
1724 if (toget > m_client->m_last_resultCount)
1725 toget = m_client->m_last_resultCount;
1727 if (sr->mediumSetElementSetNames)
1729 comp = (Z_RecordComposition *)
1730 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1731 comp->which = Z_RecordComp_simple;
1732 comp->u.simple = sr->mediumSetElementSetNames;
1735 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1736 sr->preferredRecordSyntax, comp))
1738 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1740 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1741 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1742 new_apdu->u.searchResponse->resultCount =
1743 &m_client->m_last_resultCount;
1745 new_apdu->u.searchResponse->numberOfRecordsReturned
1746 = odr_intdup(odr_encode(), toget);
1748 new_apdu->u.searchResponse->presentStatus =
1749 odr_intdup(odr_encode(), Z_PresentStatus_success);
1750 new_apdu->u.searchResponse->records = (Z_Records*)
1751 odr_malloc(odr_encode(), sizeof(Z_Records));
1752 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1753 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1754 new_apdu->u.searchResponse->nextResultSetPosition =
1755 odr_intdup(odr_encode(), toget+1);
1756 send_to_client(new_apdu);
1762 // send present request (medium size)
1763 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1766 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1767 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1768 pr->referenceId = sr->referenceId;
1769 pr->resultSetId = sr->resultSetName;
1770 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1771 *pr->numberOfRecordsRequested = toget;
1772 pr->recordComposition = comp;
1773 m_client->m_sr_transform = 1;
1777 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1778 m_client->m_last_resultCount <= 0)
1780 // large set. Return pseudo-search response immediately
1781 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1783 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1784 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1785 new_apdu->u.searchResponse->resultCount =
1786 &m_client->m_last_resultCount;
1787 send_to_client(new_apdu);
1792 Z_NamePlusRecordList *npr;
1793 int toget = m_client->m_last_resultCount;
1794 Z_RecordComposition *comp = 0;
1796 // send a present request (small set)
1798 if (sr->smallSetElementSetNames)
1800 comp = (Z_RecordComposition *)
1801 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1802 comp->which = Z_RecordComp_simple;
1803 comp->u.simple = sr->smallSetElementSetNames;
1806 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1807 sr->preferredRecordSyntax, comp))
1809 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1811 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1812 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1813 new_apdu->u.searchResponse->resultCount =
1814 &m_client->m_last_resultCount;
1816 new_apdu->u.searchResponse->numberOfRecordsReturned
1817 = odr_intdup(odr_encode(), toget);
1819 new_apdu->u.searchResponse->presentStatus =
1820 odr_intdup(odr_encode(), Z_PresentStatus_success);
1821 new_apdu->u.searchResponse->records = (Z_Records*)
1822 odr_malloc(odr_encode(), sizeof(Z_Records));
1823 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1824 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1825 new_apdu->u.searchResponse->nextResultSetPosition =
1826 odr_intdup(odr_encode(), toget+1);
1827 send_to_client(new_apdu);
1832 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1834 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1835 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1836 pr->referenceId = sr->referenceId;
1837 pr->resultSetId = sr->resultSetName;
1838 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1839 *pr->numberOfRecordsRequested = toget;
1840 pr->recordComposition = comp;
1841 m_client->m_sr_transform = 1;
1846 else // query doesn't match
1848 delete m_client->m_last_query;
1849 m_client->m_last_query = this_query;
1850 m_client->m_last_ok = 0;
1851 m_client->m_cache.clear();
1852 m_client->m_resultSetStartPoint = 0;
1854 xfree (m_client->m_last_resultSetId);
1855 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1857 m_client->m_last_databases.set(sr->num_databaseNames,
1858 (const char **) sr->databaseNames);
1864 void Yaz_Proxy::inc_request_no()
1867 char *cp = m_session_str + strlen(m_session_str)-1;
1870 while (*cp && *cp != ' ')
1873 sprintf(cp+1, "%d ", m_request_no);
1876 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1880 m_bytes_recv += len;
1882 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1883 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1884 m_session_str, gdu_name(apdu), len);
1887 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1888 if (apdu->which == Z_GDU_Z3950
1889 && apdu->u.z3950->which == Z_APDU_searchRequest)
1891 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1892 if (req->query && req->query->which == Z_Query_type_1)
1894 Z_RPNQuery *rpnquery = req->query->u.type_1;
1895 if (rpnquery->attributeSetId)
1897 rpnquery->attributeSetId[0] = -2;
1898 rpnquery->attributeSetId[1] = -1;
1899 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1905 #if HAVE_GETTIMEOFDAY
1906 gettimeofday((struct timeval *) m_time_tv, 0);
1908 m_bw_stat.add_bytes(len);
1909 m_pdu_stat.add_bytes(1);
1911 GDU *gdu = new GDU(apdu);
1913 if (gdu->get() == 0)
1916 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1921 m_in_queue.enqueue(gdu);
1922 recv_GDU_more(false);
1925 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1927 if (z_gdu->which == Z_GDU_HTTP_Request)
1929 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1930 const char *x_forwarded_for =
1931 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1932 if (x_forwarded_for)
1935 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1936 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1938 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1940 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1941 sprintf(m_session_str, "%ld:%d %.80s %d ",
1942 (long) time(0), m_session_no, m_peername, m_request_no);
1944 sprintf(m_session_str, "%ld:%d %d ",
1945 (long) time(0), m_session_no, m_request_no);
1950 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1953 m_parent->m_connect.cleanup(false);
1954 m_parent->m_connect.add_connect(m_peername);
1956 int connect_total = m_parent->m_connect.get_total(m_peername);
1957 int max_connect = m_parent->m_max_connect;
1959 if (max_connect && connect_total > max_connect)
1961 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1962 m_session_str, connect_total, max_connect);
1967 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1970 int limit_connect = m_parent->m_limit_connect;
1972 reduce = connect_total / limit_connect;
1977 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1979 HTTP_Forwarded(gdu->get());
1983 if (m_request_no == 1)
1987 connect_stat(block, reduce);
1991 m_timeout_mode = timeout_busy;
1997 int bw_total = m_bw_stat.get_total();
1998 int pdu_total = m_pdu_stat.get_total();
1999 int search_total = m_search_stat.get_total();
2001 assert(m_timeout_mode == timeout_busy);
2002 assert(m_timeout_gdu == 0);
2005 reduce += search_total / m_search_max;
2007 reduce += (bw_total/m_bw_max);
2010 if (pdu_total > m_pdu_max)
2012 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2013 reduce = (reduce > nreduce) ? reduce : nreduce;
2019 /* uncomment to force a big reduce */
2020 m_timeout_mode = timeout_reduce;
2021 m_timeout_gdu = gdu;
2022 timeout(3); // call us reduce seconds later
2027 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2028 m_session_str, reduce, bw_total, pdu_total, search_total,
2029 m_bw_max, m_pdu_max, m_search_max);
2031 m_timeout_mode = timeout_reduce;
2032 m_timeout_gdu = gdu;
2033 timeout(reduce); // call us reduce seconds later
2036 recv_GDU_normal(gdu);
2039 void Yaz_Proxy::recv_GDU_more(bool normal)
2042 if (normal && m_timeout_mode == timeout_busy)
2043 m_timeout_mode = timeout_normal;
2044 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2046 m_timeout_mode = timeout_busy;
2054 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2057 gdu->move_away_gdu(odr_decode(), &apdu);
2060 if (apdu->which == Z_GDU_Z3950)
2061 handle_incoming_Z_PDU(apdu->u.z3950);
2062 else if (apdu->which == Z_GDU_HTTP_Request)
2063 handle_incoming_HTTP(apdu->u.HTTP_Request);
2066 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2068 if (m_max_record_retrieve)
2070 if (apdu->which == Z_APDU_presentRequest)
2072 Z_PresentRequest *pr = apdu->u.presentRequest;
2073 if (pr->numberOfRecordsRequested &&
2074 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2075 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2080 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2082 if (apdu->which == Z_APDU_initRequest)
2084 if (m_initRequest_options &&
2085 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2086 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2088 // There is no negotiation proposal from
2089 // client's side. OK. The proxy negotiation
2091 Z_InitRequest *initRequest = apdu->u.initRequest;
2092 Z_OtherInformation **otherInfo;
2093 Z_OtherInformationUnit *oi;
2094 get_otherInfoAPDU(apdu, &otherInfo);
2095 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2098 ODR_MASK_SET(initRequest->options,
2099 Z_Options_negotiationModel);
2100 oi->which = Z_OtherInfo_externallyDefinedInfo;
2101 oi->information.externallyDefinedInfo =
2102 yaz_set_proposal_charneg(odr_encode(),
2103 (const char**)&m_proxy_negotiation_charset,
2104 m_proxy_negotiation_charset ? 1:0,
2105 (const char**)&m_proxy_negotiation_lang,
2106 m_proxy_negotiation_lang ? 1:0,
2110 else if (m_initRequest_options &&
2111 ODR_MASK_GET(m_initRequest_options,
2112 Z_Options_negotiationModel) &&
2113 m_charset_converter->get_target_query_charset())
2115 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2117 m_charset_converter->get_target_query_charset());
2118 Z_InitRequest *initRequest = apdu->u.initRequest;
2119 Z_CharSetandLanguageNegotiation *negotiation =
2120 yaz_get_charneg_record (initRequest->otherInfo);
2122 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2124 NMEM nmem = nmem_create();
2125 char **charsets = 0;
2126 int num_charsets = 0;
2130 yaz_get_proposal_charneg (nmem, negotiation,
2131 &charsets, &num_charsets,
2132 &langs, &num_langs, &selected);
2134 for (i = 0; i<num_charsets; i++)
2135 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2137 for (i = 0; i<num_langs; i++)
2138 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2141 const char *t_charset =
2142 m_charset_converter->get_target_query_charset();
2143 // sweep through charsets and pick the first supported
2145 for (i = 0; i<num_charsets; i++)
2147 const char *c_charset = charsets[i];
2148 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2151 if (i != num_charsets)
2153 // got one .. set up ODR for reverse direction
2154 const char *c_charset = charsets[i];
2155 odr_set_charset(odr_encode(), c_charset, t_charset);
2156 m_charset_converter->set_client_query_charset(c_charset);
2157 m_charset_converter->set_client_charset_selected(selected);
2160 ODR_MASK_CLEAR(m_initRequest_options,
2161 Z_Options_negotiationModel);
2162 yaz_del_charneg_record(&initRequest->otherInfo);
2166 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2170 else if (m_charset_converter->get_target_query_charset() &&
2171 m_proxy_negotiation_default_charset)
2173 m_charset_converter->
2174 set_client_query_charset(m_proxy_negotiation_default_charset);
2177 else if (apdu->which == Z_APDU_initResponse)
2179 Z_InitResponse *initResponse = apdu->u.initResponse;
2180 Z_OtherInformation **otherInfo;
2181 get_otherInfoAPDU(apdu, &otherInfo);
2183 Z_CharSetandLanguageNegotiation *charneg = 0;
2185 if (otherInfo && *otherInfo &&
2186 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2187 && (charneg = yaz_get_charneg_record(*otherInfo)))
2193 yaz_get_response_charneg(m_referenceId_mem, charneg,
2194 &charset, &lang, &selected);
2196 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2197 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2199 if (m_initRequest_options &&
2200 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2202 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2205 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2207 // negotiation-charset, negotiation-lang
2208 // elements of config file in use.
2210 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2213 // clear negotiation option.
2214 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2216 // Delete negotiation (charneg-3) entry.
2217 yaz_del_charneg_record(otherInfo);
2222 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2224 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2227 else if (m_charset_converter->get_client_query_charset())
2229 Z_OtherInformation **otherInfo;
2230 Z_OtherInformationUnit *oi;
2231 get_otherInfoAPDU(apdu, &otherInfo);
2232 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2235 ODR_MASK_SET(initResponse->options,
2236 Z_Options_negotiationModel);
2237 if (m_initRequest_options)
2238 ODR_MASK_SET(m_initRequest_options,
2239 Z_Options_negotiationModel);
2241 oi->which = Z_OtherInfo_externallyDefinedInfo;
2242 oi->information.externallyDefinedInfo =
2243 yaz_set_response_charneg(
2245 m_charset_converter->get_client_query_charset(),
2247 m_charset_converter->get_client_charset_selected());
2254 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2256 const char *addinfo)
2258 Z_Records *rec = (Z_Records *)
2259 odr_malloc (odr, sizeof(*rec));
2261 odr_malloc (odr, sizeof(*err));
2262 Z_DiagRec *drec = (Z_DiagRec *)
2263 odr_malloc (odr, sizeof(*drec));
2264 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2265 odr_malloc (odr, sizeof(*dr));
2267 rec->which = Z_Records_NSD;
2268 rec->u.nonSurrogateDiagnostic = dr;
2269 dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
2270 dr->condition = err;
2271 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2272 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2276 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2278 if (apdu->which == Z_APDU_searchRequest &&
2279 apdu->u.searchRequest->query &&
2280 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2281 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2283 Z_RPNQuery *rpnquery = 0;
2284 Z_SearchRequest *sr = apdu->u.searchRequest;
2287 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2288 sr->query->u.type_104->u.cql);
2290 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2291 &rpnquery, odr_encode(),
2294 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2297 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2298 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2300 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2301 new_apdu->u.searchResponse->records =
2302 create_nonSurrogateDiagnostics(odr_encode(),
2303 yaz_diag_srw_to_bib1(r),
2305 *new_apdu->u.searchResponse->searchStatus = 0;
2307 send_to_client(new_apdu);
2313 sr->query->which = Z_Query_type_1;
2314 sr->query->u.type_1 = rpnquery;
2321 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2323 if (apdu->which == Z_APDU_searchRequest &&
2324 apdu->u.searchRequest->query)
2326 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2327 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2330 m_charset_converter->set_client_query_charset("UTF-8");
2331 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2332 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2339 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2341 if (apdu->which == Z_APDU_searchRequest)
2343 Z_SearchRequest *sr = apdu->u.searchRequest;
2347 Yaz_ProxyConfig *cfg = check_reconfigure();
2349 err = cfg->check_query(odr_encode(), m_default_target,
2350 sr->query, &addinfo);
2353 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2355 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2356 new_apdu->u.searchResponse->records =
2357 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2358 *new_apdu->u.searchResponse->searchStatus = 0;
2360 send_to_client(new_apdu);
2368 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2370 if (apdu->which != Z_APDU_initRequest)
2371 return 1; // pass if no init request
2372 Z_InitRequest *req = apdu->u.initRequest;
2374 Yaz_ProxyConfig *cfg = check_reconfigure();
2376 return 1; // pass if no config
2379 if (req->idAuthentication == 0)
2381 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2384 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2386 ret = cfg->client_authentication(
2388 req->idAuthentication->u.idPass->userId,
2389 req->idAuthentication->u.idPass->groupId,
2390 req->idAuthentication->u.idPass->password,
2393 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2395 char user[64], pass[64];
2398 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2399 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2403 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2408 int Yaz_Proxy::handle_global_authentication(Z_APDU *apdu)
2410 if (apdu->which != Z_APDU_initRequest)
2411 return 1; // pass if no init request
2412 Z_InitRequest *req = apdu->u.initRequest;
2414 Yaz_ProxyConfig *cfg = check_reconfigure();
2416 return 1; // pass if no config
2419 if (req->idAuthentication == 0)
2421 ret = cfg->global_client_authentication(0, 0, 0,
2424 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2426 ret = cfg->global_client_authentication(
2427 req->idAuthentication->u.idPass->userId,
2428 req->idAuthentication->u.idPass->groupId,
2429 req->idAuthentication->u.idPass->password,
2432 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2434 char user[64], pass[64];
2437 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2438 ret = cfg->global_client_authentication(user, 0, pass,
2442 ret = cfg->global_client_authentication(0, 0, 0, m_peername);
2446 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2448 m_marcxml_mode = none;
2449 if (apdu->which == Z_APDU_searchRequest)
2451 Z_SearchRequest *sr = apdu->u.searchRequest;
2454 Yaz_ProxyConfig *cfg = check_reconfigure();
2456 Z_RecordComposition rc_temp, *rc = 0;
2457 if (sr->smallSetElementSetNames)
2459 rc_temp.which = Z_RecordComp_simple;
2460 rc_temp.u.simple = sr->smallSetElementSetNames;
2464 if (sr->preferredRecordSyntax)
2465 oid_oidcpy(m_frontend_type, sr->preferredRecordSyntax);
2467 m_frontend_type[0] = -1;
2469 char *stylesheet_name = 0;
2471 err = cfg->check_syntax(odr_encode(),
2473 sr->preferredRecordSyntax, rc,
2474 &addinfo, &stylesheet_name, &m_schema,
2475 &m_backend_type, &m_backend_charset,
2476 &m_usemarcon_ini_stage1,
2477 &m_usemarcon_ini_stage2);
2478 if (stylesheet_name)
2480 m_parent->low_socket_close();
2483 if (m_stylesheet_xsp)
2484 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2485 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2488 m_stylesheet_offset = 0;
2489 xfree(stylesheet_name);
2491 m_parent->low_socket_open();
2495 sr->smallSetElementSetNames = 0;
2496 sr->mediumSetElementSetNames = 0;
2497 m_marcxml_mode = marcxml;
2498 sr->preferredRecordSyntax =
2499 yaz_string_to_oid_odr(
2500 yaz_oid_std(), CLASS_RECSYN,
2501 m_backend_type ? m_backend_type : "usmarc",
2506 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2508 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2509 new_apdu->u.searchResponse->records =
2510 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2511 *new_apdu->u.searchResponse->searchStatus = 0;
2513 send_to_client(new_apdu);
2517 else if (m_backend_type)
2519 sr->preferredRecordSyntax =
2520 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN,
2521 m_backend_type, odr_encode());
2524 else if (apdu->which == Z_APDU_presentRequest)
2526 Z_PresentRequest *pr = apdu->u.presentRequest;
2529 Yaz_ProxyConfig *cfg = check_reconfigure();
2531 if (pr->preferredRecordSyntax)
2532 oid_oidcpy(m_frontend_type, pr->preferredRecordSyntax);
2534 m_frontend_type[0] = -1;
2536 char *stylesheet_name = 0;
2538 err = cfg->check_syntax(odr_encode(), m_default_target,
2539 pr->preferredRecordSyntax,
2540 pr->recordComposition,
2541 &addinfo, &stylesheet_name, &m_schema,
2542 &m_backend_type, &m_backend_charset,
2543 &m_usemarcon_ini_stage1,
2544 &m_usemarcon_ini_stage2
2546 if (stylesheet_name)
2548 m_parent->low_socket_close();
2551 if (m_stylesheet_xsp)
2552 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2553 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2556 m_stylesheet_offset = 0;
2557 xfree(stylesheet_name);
2559 m_parent->low_socket_open();
2563 pr->recordComposition = 0;
2564 m_marcxml_mode = marcxml;
2566 pr->preferredRecordSyntax =
2567 yaz_string_to_oid_odr(
2568 yaz_oid_std(), CLASS_RECSYN,
2569 m_backend_type ? m_backend_type : "usmarc",
2574 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2576 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2577 new_apdu->u.presentResponse->records =
2578 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2579 *new_apdu->u.presentResponse->presentStatus =
2580 Z_PresentStatus_failure;
2582 send_to_client(new_apdu);
2586 else if (m_backend_type)
2588 pr->preferredRecordSyntax =
2589 yaz_string_to_oid_odr(yaz_oid_std(),
2590 CLASS_RECSYN, m_backend_type,
2597 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2601 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2602 odr_malloc(o, sizeof(Z_ElementSetNames));
2603 esn->which = Z_ElementSetNames_generic;
2604 esn->u.generic = odr_strdup(o, schema);
2608 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2611 Yaz_ProxyConfig *cfg = check_reconfigure();
2613 t = cfg->get_explain_name(db, backend_db);
2615 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2622 xfree(m_default_target);
2623 m_default_target = xstrdup(t);
2627 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2630 if (strcmp(hreq->method, "GET"))
2632 if (hreq->path[0] != '/')
2634 const char *cp = hreq->path;
2637 if (*cp == '/' && strchr("/.", cp[1]))
2642 Yaz_ProxyConfig *cfg = check_reconfigure();
2644 if (!cfg->get_file_access_info(hreq->path+1))
2647 const char *fname = hreq->path+1;
2648 if (stat(fname, &sbuf))
2650 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2654 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2656 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2659 if (sbuf.st_size > (off_t) 1000000)
2661 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2666 ODR o = odr_encode();
2668 const char *ctype = cfg->check_mime_type(fname);
2669 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2670 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2672 hres->version = odr_strdup(o, m_http_version);
2673 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2674 if (m_http_keepalive)
2675 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2679 hres->content_len = sbuf.st_size;
2680 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2681 FILE *f = fopen(fname, "rb");
2684 fread(hres->content_buf, 1, hres->content_len, f);
2691 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2693 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2697 send_GDU(gdu, &len);
2698 recv_GDU_more(true);
2702 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2706 odr_destroy(m_s2z_odr_init);
2709 if (m_s2z_odr_search)
2711 odr_destroy(m_s2z_odr_search);
2712 m_s2z_odr_search = 0;
2715 m_http_keepalive = 0;
2717 if (!strcmp(hreq->version, "1.0"))
2719 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2720 if (v && !strcmp(v, "Keep-Alive"))
2721 m_http_keepalive = 1;
2723 m_http_keepalive = 0;
2724 m_http_version = "1.0";
2728 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2729 if (v && !strcmp(v, "close"))
2730 m_http_keepalive = 0;
2732 m_http_keepalive = 1;
2733 m_http_version = "1.1";
2736 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2737 char authorization_str[255];
2738 *authorization_str = '\0';
2739 if (a && strncasecmp(a, "Basic ", 6) == 0)
2740 base64_decode(a + 6, authorization_str, 254);
2742 Z_SRW_PDU *srw_pdu = 0;
2743 Z_SOAP *soap_package = 0;
2745 Z_SRW_diagnostic *diagnostic = 0;
2746 int num_diagnostic = 0;
2748 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2750 if (file_access(hreq))
2754 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2756 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2757 &charset, &diagnostic, &num_diagnostic) == 0)
2759 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2760 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2761 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2762 m_s2z_init_apdu = 0;
2763 m_s2z_search_apdu = 0;
2764 m_s2z_present_apdu = 0;
2766 m_s2z_stylesheet = 0;
2768 Z_IdAuthentication *auth = NULL;
2769 if (srw_pdu->username && srw_pdu->password)
2771 yaz_log(YLOG_LOG, "username/password: %s/%s\n",
2772 srw_pdu->username, srw_pdu->password);
2773 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2774 auth->which = Z_IdAuthentication_idPass;
2775 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2776 auth->u.idPass->groupId = NULL;
2777 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, srw_pdu->password);
2778 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, srw_pdu->username);
2782 if (*authorization_str)
2784 yaz_log(YLOG_LOG, "authorization_str present: %s\n", authorization_str);
2785 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2786 auth->which = Z_IdAuthentication_idPass;
2787 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2788 auth->u.idPass->groupId = NULL;
2789 char *p = strchr(authorization_str, ':');
2794 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2796 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2800 // Use _client_ IP as shown in the log entries...!
2801 yaz_log(YLOG_LOG, "No authorization_str present: use client IP: %s\n", m_peername);
2803 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2804 auth->which = Z_IdAuthentication_idPass;
2805 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2806 auth->u.idPass->groupId = NULL;
2807 auth->u.idPass->password = NULL;
2808 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, m_peername);
2812 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2815 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2817 const char *backend_db = srw_req->database;
2818 srw_get_client(srw_req->database, &backend_db);
2820 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2821 // recordXPath unsupported.
2822 if (srw_req->recordXPath)
2824 yaz_add_srw_diagnostic(odr_decode(),
2825 &diagnostic, &num_diagnostic,
2829 if (srw_req->sort_type != Z_SRW_sort_type_none)
2831 yaz_add_srw_diagnostic(odr_decode(),
2832 &diagnostic, &num_diagnostic,
2836 if (srw_req->stylesheet)
2838 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2840 // set packing for response records ..
2841 if (srw_req->recordPacking &&
2842 !strcmp(srw_req->recordPacking, "xml"))
2843 m_s2z_packing = Z_SRW_recordPacking_XML;
2845 m_s2z_packing = Z_SRW_recordPacking_string;
2849 Z_SRW_PDU *srw_pdu =
2850 yaz_srw_get(odr_encode(),
2851 Z_SRW_searchRetrieve_response);
2852 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2854 srw_res->diagnostics = diagnostic;
2855 srw_res->num_diagnostics = num_diagnostic;
2856 send_srw_response(srw_pdu);
2860 // prepare search PDU
2861 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2862 Z_APDU_searchRequest);
2863 Z_SearchRequest *z_searchRequest =
2864 m_s2z_search_apdu->u.searchRequest;
2866 z_searchRequest->num_databaseNames = 1;
2867 z_searchRequest->databaseNames = (char**)
2868 odr_malloc(m_s2z_odr_search, sizeof(char *));
2869 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2872 // query transformation
2873 Z_Query *query = (Z_Query *)
2874 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2875 z_searchRequest->query = query;
2877 if (srw_req->query_type == Z_SRW_query_type_cql)
2879 Z_External *ext = (Z_External *)
2880 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2881 ext->direct_reference =
2882 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2883 ext->indirect_reference = 0;
2884 ext->descriptor = 0;
2885 ext->which = Z_External_CQL;
2886 ext->u.cql = srw_req->query.cql;
2888 query->which = Z_Query_type_104;
2889 query->u.type_104 = ext;
2891 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2893 Z_RPNQuery *RPNquery;
2894 YAZ_PQF_Parser pqf_parser;
2896 pqf_parser = yaz_pqf_create ();
2898 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2899 srw_req->query.pqf);
2902 const char *pqf_msg;
2904 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2906 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2907 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2909 send_to_srw_client_error(10, 0);
2912 query->which = Z_Query_type_1;
2913 query->u.type_1 = RPNquery;
2915 yaz_pqf_destroy (pqf_parser);
2919 send_to_srw_client_error(7, "query");
2924 m_s2z_present_apdu = 0;
2926 if (srw_req->maximumRecords)
2927 max = *srw_req->maximumRecords;
2929 if (srw_req->startRecord)
2930 start = *srw_req->startRecord;
2933 // Some backend, such as Voyager doesn't honor piggyback
2934 // So we use present always (0 &&).
2935 if (0 && start <= 1) // Z39.50 piggyback
2937 *z_searchRequest->smallSetUpperBound = max;
2938 *z_searchRequest->mediumSetPresentNumber = max;
2939 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2941 z_searchRequest->preferredRecordSyntax =
2942 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2944 if (srw_req->recordSchema)
2946 z_searchRequest->smallSetElementSetNames =
2947 z_searchRequest->mediumSetElementSetNames =
2948 mk_esn_from_schema(m_s2z_odr_search,
2949 srw_req->recordSchema);
2952 else // Z39.50 present
2954 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2955 Z_APDU_presentRequest);
2956 Z_PresentRequest *z_presentRequest =
2957 m_s2z_present_apdu->u.presentRequest;
2958 *z_presentRequest->resultSetStartPoint = start;
2959 *z_presentRequest->numberOfRecordsRequested = max;
2961 z_presentRequest->preferredRecordSyntax =
2962 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2963 if (srw_req->recordSchema)
2965 z_presentRequest->recordComposition =
2966 (Z_RecordComposition *)
2967 odr_malloc(m_s2z_odr_search,
2968 sizeof(Z_RecordComposition));
2969 z_presentRequest->recordComposition->which =
2970 Z_RecordComp_simple;
2971 z_presentRequest->recordComposition->u.simple =
2972 mk_esn_from_schema(m_s2z_odr_search,
2973 srw_req->recordSchema);
2979 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2980 Z_APDU_initRequest);
2982 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2984 // prevent m_initRequest_apdu memory from being grabbed
2985 // in Yaz_Proxy::handle_incoming_Z_PDU
2986 m_initRequest_apdu = m_s2z_init_apdu;
2987 handle_incoming_Z_PDU(m_s2z_init_apdu);
2992 handle_incoming_Z_PDU(m_s2z_search_apdu);
2996 else if (srw_pdu->which == Z_SRW_explain_request)
2998 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
3000 const char *backend_db = srw_req->database;
3001 srw_get_client(srw_req->database, &backend_db);
3003 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3006 if (srw_req->stylesheet)
3008 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3010 if (srw_req->recordPacking &&
3011 !strcmp(srw_req->recordPacking, "xml"))
3012 m_s2z_packing = Z_SRW_recordPacking_XML;
3014 m_s2z_packing = Z_SRW_recordPacking_string;
3018 send_srw_explain_response(diagnostic, num_diagnostic);
3024 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3025 Z_APDU_initRequest);
3027 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3029 // prevent m_initRequest_apdu memory from being grabbed
3030 // in Yaz_Proxy::handle_incoming_Z_PDU
3031 m_initRequest_apdu = m_s2z_init_apdu;
3032 handle_incoming_Z_PDU(m_s2z_init_apdu);
3035 send_srw_explain_response(0, 0);
3038 else if (srw_pdu->which == Z_SRW_scan_request)
3040 m_s2z_database = odr_strdup(m_s2z_odr_init,
3041 srw_pdu->u.scan_request->database);
3043 yaz_add_srw_diagnostic(odr_decode(),
3044 &diagnostic, &num_diagnostic,
3046 Z_SRW_PDU *srw_pdu =
3047 yaz_srw_get(odr_encode(),
3048 Z_SRW_scan_response);
3049 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3051 srw_res->diagnostics = diagnostic;
3052 srw_res->num_diagnostics = num_diagnostic;
3053 send_srw_response(srw_pdu);
3060 send_to_srw_client_error(4, 0);
3063 send_http_response(400);
3066 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3069 Z_OtherInformation **oi;
3070 get_otherInfoAPDU(apdu, &oi);
3072 if (apdu->u.initRequest->implementationId)
3073 yaz_log(YLOG_LOG, "%simplementationId: %s",
3074 m_session_str, apdu->u.initRequest->implementationId);
3075 if (apdu->u.initRequest->implementationName)
3076 yaz_log(YLOG_LOG, "%simplementationName: %s",
3077 m_session_str, apdu->u.initRequest->implementationName);
3078 if (apdu->u.initRequest->implementationVersion)
3079 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3080 m_session_str, apdu->u.initRequest->implementationVersion);
3081 if (m_initRequest_apdu == 0)
3083 if (m_initRequest_mem)
3084 nmem_destroy(m_initRequest_mem);
3086 m_initRequest_apdu = apdu;
3087 m_initRequest_mem = odr_extract_mem(odr_decode());
3089 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3090 preferredMessageSize;
3091 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3092 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3094 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3096 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3097 yaz_get_charneg_record(*oi);
3099 // Save proposal charsets and langs.
3100 if (ODR_MASK_GET(apdu->u.initRequest->options,
3101 Z_Options_negotiationModel)
3102 && charSetandLangRecord)
3105 yaz_get_proposal_charneg(m_referenceId_mem,
3106 charSetandLangRecord,
3107 &m_initRequest_oi_negotiation_charsets,
3108 &m_initRequest_oi_negotiation_num_charsets,
3109 &m_initRequest_oi_negotiation_langs,
3110 &m_initRequest_oi_negotiation_num_langs,
3111 &m_initRequest_oi_negotiation_selected);
3113 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3115 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3116 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3117 m_initRequest_oi_negotiation_charsets[i]:"none");
3119 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3121 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3122 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3123 m_initRequest_oi_negotiation_langs[i]:"none");
3125 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3126 m_session_str, m_initRequest_oi_negotiation_selected);
3128 // save init options for the response..
3129 m_initRequest_options = apdu->u.initRequest->options;
3131 apdu->u.initRequest->options =
3132 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3133 sizeof(Odr_bitmask));
3134 ODR_MASK_ZERO(apdu->u.initRequest->options);
3136 for (i = 0; i<= 24; i++)
3137 ODR_MASK_SET(apdu->u.initRequest->options, i);
3138 // check negotiation option
3139 if (!ODR_MASK_GET(m_initRequest_options,
3140 Z_Options_negotiationModel))
3142 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3143 Z_Options_negotiationModel);
3145 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3146 Z_Options_concurrentOperations);
3148 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3149 apdu->u.initRequest->protocolVersion =
3150 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3151 sizeof(Odr_bitmask));
3152 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3154 for (i = 0; i<= 8; i++)
3155 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3157 handle_charset_lang_negotiation(apdu);
3158 if (m_client->m_init_flag)
3160 if (handle_init_response_for_invalid_session(apdu))
3162 if (m_client->m_initResponse)
3164 Z_APDU *apdu2 = m_client->m_initResponse;
3165 apdu2->u.initResponse->otherInfo = 0;
3166 if (m_client->m_cookie && *m_client->m_cookie)
3167 set_otherInformationString(apdu2, yaz_oid_userinfo_cookie,
3168 1, m_client->m_cookie);
3169 apdu2->u.initResponse->referenceId =
3170 apdu->u.initRequest->referenceId;
3171 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3172 apdu2->u.initResponse->protocolVersion =
3173 m_client->m_initResponse_version;
3175 handle_charset_lang_negotiation(apdu2);
3177 if (m_timeout_mode == timeout_busy)
3178 m_timeout_mode = timeout_normal;
3179 send_to_client(apdu2);
3183 m_client->m_init_flag = 1;
3185 if (m_num_msg_threads && m_my_thread)
3187 Auth_Msg *m = new Auth_Msg;
3189 z_APDU(odr_encode(), &apdu, 0, "encode");
3190 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3191 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3192 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3193 odr_reset(odr_encode());
3196 m_my_thread->put(m);
3200 int ret = handle_authentication(apdu);
3201 result_authentication(apdu, ret);
3205 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3207 Z_ReferenceId **refid = get_referenceIdP(apdu);
3208 nmem_reset(m_referenceId_mem);
3209 if (refid && *refid)
3211 m_referenceId = (Z_ReferenceId *)
3212 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3213 m_referenceId->len = m_referenceId->size = (*refid)->len;
3214 m_referenceId->buf = (unsigned char *)
3215 nmem_malloc(m_referenceId_mem, (*refid)->len);
3216 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3221 if (!m_client && m_flag_invalid_session)
3223 // Got request for a session that is invalid..
3224 m_apdu_invalid_session = apdu; // save package
3225 m_mem_invalid_session = odr_extract_mem(odr_decode());
3226 apdu = m_initRequest_apdu; // but throw an init to the target
3229 if (apdu->which == Z_APDU_searchRequest)
3230 m_search_stat.add_bytes(1);
3232 // Handle global authentication
3233 if (!handle_global_authentication(apdu))
3236 { // HTTP. Send unauthorized
3237 send_http_response(401);
3242 // Z39.50 just shutdown
3249 // Determine our client.
3250 Z_OtherInformation **oi;
3251 get_otherInfoAPDU(apdu, &oi);
3252 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3256 { // HTTP. Send not found
3257 send_http_response(404);
3262 // Z39.50 just shutdown
3268 m_client->m_server = this;
3270 if (apdu->which == Z_APDU_initRequest)
3273 handle_incoming_Z_PDU_2(apdu);
3276 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3278 handle_max_record_retrieve(apdu);
3281 apdu = handle_syntax_validation(apdu);
3284 apdu = handle_query_transformation(apdu);
3287 apdu = handle_target_charset_conversion(apdu);
3290 apdu = handle_query_validation(apdu);
3293 apdu = result_set_optimize(apdu);
3297 m_client->timeout(m_target_idletime); // mark it active even
3298 recv_GDU_more(true);
3299 // though we didn't use it
3303 // delete other info construct completely if 0 elements
3304 Z_OtherInformation **oi;
3305 get_otherInfoAPDU(apdu, &oi);
3306 if (oi && *oi && (*oi)->num_elements == 0)
3309 if (apdu->which == Z_APDU_presentRequest &&
3310 m_client->m_resultSetStartPoint == 0)
3312 Z_PresentRequest *pr = apdu->u.presentRequest;
3313 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3314 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3316 m_client->m_resultSetStartPoint = 0;
3318 if (m_client->send_to_target(apdu) < 0)
3320 m_client->shutdown();
3323 m_client->m_waiting = 1;
3326 void Yaz_Proxy::connectNotify()
3330 void Yaz_Proxy::releaseClient()
3332 xfree(m_proxyTarget);
3334 m_flag_invalid_session = 0;
3335 // only keep if keep_alive flag is set...
3337 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3338 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3339 m_client->m_waiting == 0)
3341 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3343 m_client->get_hostname());
3344 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3345 m_session_str, m_client->m_pdu_recv,
3346 m_client->m_bytes_sent + m_client->m_bytes_recv,
3347 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3348 assert (m_client->m_waiting != 2);
3349 // Tell client (if any) that no server connection is there..
3350 m_client->m_server = 0;
3355 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3357 m_client->get_hostname());
3358 assert (m_client->m_waiting != 2);
3364 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3370 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3374 m_parent->pre_init();
3377 bool Yaz_Proxy::dec_ref()
3379 m_http_keepalive = 0;
3382 if (m_ref_count > 0)
3391 const char *Yaz_ProxyClient::get_session_str()
3395 return m_server->get_session_str();
3398 void Yaz_ProxyClient::shutdown()
3400 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3405 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3406 m_server->dec_ref();
3412 void Yaz_Proxy::failNotify()
3415 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3419 void Yaz_Proxy::send_response_fail_client(const char *addr)
3423 Z_SRW_diagnostic *diagnostic = 0;
3424 int num_diagnostic = 0;
3426 yaz_add_srw_diagnostic(odr_encode(),
3427 &diagnostic, &num_diagnostic,
3428 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3429 if (m_s2z_search_apdu)
3430 send_srw_search_response(diagnostic, num_diagnostic);
3432 send_srw_explain_response(diagnostic, num_diagnostic);
3435 void Yaz_ProxyClient::failNotify()
3438 m_server->inc_request_no();
3439 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3440 get_session_str(), get_hostname());
3443 m_server->send_response_fail_client(get_hostname());
3447 void Yaz_ProxyClient::connectNotify()
3449 const char *s = get_session_str();
3450 const char *h = get_hostname();
3451 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3453 timeout(m_target_idletime);
3458 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3459 *the_PDU_Observable, int fd)
3461 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3464 Yaz_ProxyClient::~Yaz_ProxyClient()
3469 m_next->m_prev = m_prev;
3470 m_waiting = 2; // for debugging purposes only.
3471 odr_destroy(m_init_odr);
3472 odr_destroy(m_idAuthentication_odr);
3473 delete m_last_query;
3474 xfree (m_last_resultSetId);
3478 void Yaz_ProxyClient::pre_init_client()
3480 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3481 Z_InitRequest *req = apdu->u.initRequest;
3484 for (i = 0; i<= 24; i++)
3485 ODR_MASK_SET(req->options, i);
3486 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3487 Z_Options_negotiationModel);
3488 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3489 Z_Options_concurrentOperations);
3490 for (i = 0; i<= 10; i++)
3491 ODR_MASK_SET(req->protocolVersion, i);
3493 if (send_to_target(apdu) < 0)
3504 void Yaz_Proxy::pre_init()
3507 const char *name = 0;
3508 const char *zurl_in_use[MAX_ZURL_PLEX];
3509 int limit_bw, limit_pdu, limit_req, limit_search;
3510 int target_idletime, client_idletime;
3512 int keepalive_limit_bw, keepalive_limit_pdu;
3514 const char *cql2rpn = 0;
3515 const char *authentication = 0;
3516 const char *negotiation_charset = 0;
3517 const char *negotiation_lang = 0;
3519 Yaz_ProxyConfig *cfg = check_reconfigure();
3523 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3528 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3529 &limit_bw, &limit_pdu, &limit_req,
3531 &target_idletime, &client_idletime,
3533 &keepalive_limit_bw,
3534 &keepalive_limit_pdu,
3538 &negotiation_charset,
3546 for (j = 0; zurl_in_use[j]; j++)
3550 int spare_waiting = 0;
3553 for (c = m_clientPool; c; c = c->m_next)
3555 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3557 if (c->m_cookie == 0)
3559 if (c->m_server == 0)
3571 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3572 "sparew=%d preinit=%d",m_session_str,
3573 name, zurl_in_use[j], in_use, other,
3574 spare, spare_waiting, pre_init);
3575 if (spare + spare_waiting < pre_init)
3577 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3578 c->m_next = m_clientPool;
3580 c->m_next->m_prev = &c->m_next;
3582 c->m_prev = &m_clientPool;
3584 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3585 c->set_APDU_yazlog(1);
3587 c->set_APDU_yazlog(0);
3589 if (c->client(zurl_in_use[j]))
3597 c->m_target_idletime = target_idletime;
3598 c->m_seqno = m_seqno++;
3605 void Yaz_Proxy::timeoutNotify()
3610 switch(m_timeout_mode)
3612 case timeout_normal:
3616 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3619 case timeout_reduce:
3620 timeout(m_client_idletime);
3621 m_timeout_mode = timeout_busy;
3622 gdu = m_timeout_gdu;
3624 recv_GDU_normal(gdu);
3627 assert(m_stylesheet_nprl);
3628 convert_xsl_delay();
3629 recv_GDU_more(true);
3639 void Yaz_Proxy::markInvalid()
3642 m_flag_invalid_session = 1;
3645 void Yaz_ProxyClient::timeoutNotify()
3648 m_server->inc_request_no();
3650 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3654 m_server->send_response_fail_client(get_hostname());
3656 Yaz_Proxy *proxy_root = m_root;
3660 proxy_root->pre_init();
3663 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3664 Yaz_Proxy *parent) :
3665 Z_Assoc (the_PDU_Observable)
3672 m_last_resultSetId = 0;
3673 m_last_resultCount = 0;
3677 m_init_odr = odr_createmem (ODR_DECODE);
3679 m_initResponse_options = 0;
3680 m_initResponse_version = 0;
3681 m_initResponse_preferredMessageSize = 0;
3682 m_initResponse_maximumRecordSize = 0;
3683 m_resultSetStartPoint = 0;
3684 m_bytes_sent = m_bytes_recv = 0;
3688 m_target_idletime = 600;
3690 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3691 m_idAuthentication_ber_buf = 0;
3692 m_idAuthentication_ber_size = 0;
3695 const char *Yaz_Proxy::option(const char *name, const char *value)
3697 if (!strcmp (name, "optimize")) {
3700 m_optimize = xstrdup (value);
3707 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3712 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3714 if (apdu->which == Z_GDU_Z3950)
3715 recv_Z_PDU(apdu->u.z3950, len);
3716 else if (apdu->which == Z_GDU_HTTP_Response)
3717 recv_HTTP_response(apdu->u.HTTP_Response, len);
3722 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3724 if (!m_flag_invalid_session)
3726 m_flag_invalid_session = 0;
3727 handle_incoming_Z_PDU(m_apdu_invalid_session);
3728 assert (m_mem_invalid_session);
3729 nmem_destroy(m_mem_invalid_session);
3730 m_mem_invalid_session = 0;
3734 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3736 m_bytes_recv += len;
3740 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3741 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3742 apdu_name(apdu), get_hostname(), len);
3743 if (apdu->which == Z_APDU_initResponse)
3745 if (!m_server) // if this is a pre init session , check for more
3747 NMEM nmem = odr_extract_mem (odr_decode());
3748 odr_reset (m_init_odr);
3749 nmem_transfer (m_init_odr->mem, nmem);
3750 m_initResponse = apdu;
3751 m_initResponse_options = apdu->u.initResponse->options;
3752 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3753 m_initResponse_preferredMessageSize =
3754 *apdu->u.initResponse->preferredMessageSize;
3755 m_initResponse_maximumRecordSize =
3756 *apdu->u.initResponse->maximumRecordSize;
3758 Z_InitResponse *ir = apdu->u.initResponse;
3760 // apply YAZ Proxy version
3761 char *imv0 = ir->implementationVersion;
3762 char *imv1 = (char*)
3763 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3768 strcat(imv1, "/" VERSION);
3770 ir->implementationVersion = imv1;
3772 // apply YAZ Proxy implementation name
3773 char *im0 = ir->implementationName;
3775 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3782 strcat(im1, "(YAZ Proxy)");
3783 ir->implementationName = im1;
3785 nmem_destroy (nmem);
3787 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3790 if (apdu->which == Z_APDU_searchResponse)
3792 Z_SearchResponse *sr = apdu->u.searchResponse;
3793 m_last_resultCount = *sr->resultCount;
3794 int status = *sr->searchStatus;
3795 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3799 if (sr->records && sr->records->which == Z_Records_DBOSD)
3801 m_cache.add(odr_decode(),
3802 sr->records->u.databaseOrSurDiagnostics, 1,
3807 if (apdu->which == Z_APDU_presentResponse)
3809 Z_PresentResponse *pr = apdu->u.presentResponse;
3813 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3814 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3815 sr->referenceId = pr->referenceId;
3816 *sr->resultCount = m_last_resultCount;
3817 sr->records = pr->records;
3818 sr->nextResultSetPosition = pr->nextResultSetPosition;
3819 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3823 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3825 m_cache.add(odr_decode(),
3826 pr->records->u.databaseOrSurDiagnostics,
3827 m_resultSetStartPoint, -1);
3828 m_resultSetStartPoint = 0;
3832 set_otherInformationString(apdu, yaz_oid_userinfo_cookie, 1, m_cookie);
3834 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3837 server->send_to_client(apdu);
3838 if (apdu->which == Z_APDU_close)
3841 server->recv_GDU_more(true);
3844 void Yaz_Proxy::low_socket_close()
3849 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3850 if (m_lo_fd[i] >= 0)
3851 ::close(m_lo_fd[i]);
3855 void Yaz_Proxy::low_socket_open()
3860 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3861 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3865 int Yaz_Proxy::server(const char *addr)
3867 int r = Z_Assoc::server(addr);
3870 yaz_log(YLOG_LOG, "%sStarted proxy "
3874 " on %s", m_session_str, addr);
3880 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3882 const char *base64_chars =
3883 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3884 int len = strlen(base64);
3888 for (int pos = 0; pos <= len; pos++)
3890 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3893 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3896 char ch = (char) (ch_ptr - base64_chars);
3900 buf[buf_pos] = ch << 2;
3903 buf[buf_pos++] += (ch & 0x30) >> 4;
3904 buf[buf_pos] = (ch & 0x0f) << 4;
3907 buf[buf_pos++] += (ch & 0x3c) >> 2;
3908 buf[buf_pos] = (ch & 0x03) << 6;
3911 buf[buf_pos++] += ch;
3918 buf[buf_pos] = '\0';
3924 * indent-tabs-mode: nil
3926 * vim: shiftwidth=4 tabstop=8 expandtab