1 /* $Id: yaz-proxy.cpp,v 1.77 2007-05-08 12:05:09 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");
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 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
551 const char *proxy_host)
554 Yaz_Proxy *parent = m_parent;
555 Yaz_ProxyClient *c = m_client;
559 const char *url[MAX_ZURL_PLEX];
560 Yaz_ProxyConfig *cfg = check_reconfigure();
563 if (parent && parent->m_debug_mode)
565 // only to be enabled for debugging...
566 if (!strcmp(proxy_host, "stop"))
569 xfree(m_default_target);
570 m_default_target = xstrdup(proxy_host);
572 proxy_host = m_default_target;
573 int client_idletime = -1;
574 const char *cql2rpn_fname = 0;
575 const char *negotiation_charset = 0;
576 const char *negotiation_lang = 0;
577 const char *query_charset = 0;
578 const char *default_client_query_charset = 0;
579 url[0] = m_default_target;
584 cfg->get_target_info(proxy_host, url, &m_bw_max,
585 &m_pdu_max, &m_max_record_retrieve,
587 &m_target_idletime, &client_idletime,
588 &parent->m_max_clients,
589 &m_keepalive_limit_bw,
590 &m_keepalive_limit_pdu,
593 &negotiation_charset,
596 &default_client_query_charset);
598 if (client_idletime != -1)
600 m_client_idletime = client_idletime;
601 timeout(m_client_idletime);
604 // get those FILE descriptors available
605 m_parent->low_socket_close();
607 m_cql2rpn.set_pqf_file(cql2rpn_fname);
608 // reserve them again
609 m_parent->low_socket_open();
611 if (negotiation_charset || negotiation_lang || default_client_query_charset)
613 set_proxy_negotiation(negotiation_charset,
614 negotiation_lang, default_client_query_charset);
616 m_charset_converter->set_target_query_charset(query_charset);
619 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
622 // we don't handle multiplexing for cookie session, so we just
623 // pick the first one in this case (anonymous users will be able
624 // to use any backend)
625 if (cookie && *cookie)
626 m_proxyTarget = (char*) xstrdup(url[0]);
628 m_proxyTarget = (char*) xstrdup(load_balance(url));
630 if (cookie && *cookie)
631 { // search in sessions with a cookie
632 for (c = parent->m_clientPool; c; c = c->m_next)
635 assert (*c->m_prev == c);
636 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
637 !strcmp(m_proxyTarget, c->get_hostname()))
640 // The following handles "cancel"
641 // If connection is busy (waiting for PDU) and
642 // we have an initRequest we can safely do re-open
643 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
645 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
652 c->m_last_resultCount = 0;
653 c->m_sr_transform = 0;
655 c->m_resultSetStartPoint = 0;
656 c->m_target_idletime = m_target_idletime;
657 if (c->client(m_proxyTarget))
664 c->m_seqno = parent->m_seqno;
665 if (c->m_server && c->m_server != this)
666 c->m_server->m_client = 0;
669 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
674 else if (!c && apdu->which == Z_APDU_initRequest )
676 // anonymous sessions without cookie.
677 // if authentication is set it is NOT anonymous se we can't share them.
678 // If charset and lang negotiation is use it is NOT anonymous session too.
679 for (c = parent->m_clientPool; c; c = c->m_next)
682 assert(*c->m_prev == c);
683 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
684 && c->compare_idAuthentication(apdu)
685 && c->compare_charset(apdu)
686 && !strcmp(m_proxyTarget, c->get_hostname()))
689 yaz_log (YLOG_LOG, "%sREUSE %d %s",
690 m_session_str, parent->m_seqno, c->get_hostname());
692 c->m_seqno = parent->m_seqno;
693 assert(c->m_server == 0);
696 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
697 c->set_APDU_yazlog(1);
699 c->set_APDU_yazlog(0);
711 if (apdu->which != Z_APDU_initRequest)
713 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
716 // go through list of clients - and find the lowest/oldest one.
717 Yaz_ProxyClient *c_min = 0;
719 int no_of_clients = 0;
720 if (parent->m_clientPool)
721 yaz_log (YLOG_DEBUG, "Existing sessions");
722 for (c = parent->m_clientPool; c; c = c->m_next)
724 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
725 c->m_waiting, c->get_hostname(),
726 c->m_cookie ? c->m_cookie : "");
728 if (min_seq < 0 || c->m_seqno < min_seq)
730 min_seq = c->m_seqno;
734 if (no_of_clients >= parent->m_max_clients)
737 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
739 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
740 m_session_str, parent->m_max_clients, c->m_seqno);
741 if (c->m_server && c->m_server != this)
742 c->m_server->dec_ref();
746 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
747 m_session_str, parent->m_max_clients,
748 c->m_seqno, parent->m_seqno, c->get_hostname());
752 c->m_cookie = xstrdup(cookie);
753 c->m_seqno = parent->m_seqno;
754 if (c->m_server && c->m_server != this)
756 c->m_server->m_client = 0;
757 c->m_server->dec_ref();
760 c->m_target_idletime = m_target_idletime;
761 c->timeout(m_target_idletime);
763 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
764 c->set_APDU_yazlog(1);
766 c->set_APDU_yazlog(0);
773 yaz_log (YLOG_LOG, "%sNEW %d %s",
774 m_session_str, parent->m_seqno, m_proxyTarget);
775 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
776 c->m_next = parent->m_clientPool;
778 c->m_next->m_prev = &c->m_next;
779 parent->m_clientPool = c;
780 c->m_prev = &parent->m_clientPool;
786 c->m_cookie = xstrdup(cookie);
788 c->m_seqno = parent->m_seqno;
790 c->m_last_resultCount = 0;
793 c->m_sr_transform = 0;
795 c->m_resultSetStartPoint = 0;
797 if (c->client(m_proxyTarget))
802 c->m_target_idletime = m_target_idletime;
805 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
806 c->set_APDU_yazlog(1);
808 c->set_APDU_yazlog(0);
810 c->set_idAuthentication(apdu);
812 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
816 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
819 for (i = 0; i<num; i++)
821 Z_DefaultDiagFormat *r;
822 Z_DiagRec *p = pp[i];
823 if (p->which != Z_DiagRec_defaultFormat)
825 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
829 r = p->u.defaultFormat;
832 case Z_DefaultDiagFormat_v2Addinfo:
833 yaz_log(YLOG_LOG, "%sError %d %s:%s",
835 *r->condition, diagbib1_str(*r->condition),
838 case Z_DefaultDiagFormat_v3Addinfo:
839 yaz_log(YLOG_LOG, "%sError %d %s:%s",
841 *r->condition, diagbib1_str(*r->condition),
848 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
850 if (!m_stylesheet_xsp || p->num_records <= 0)
852 return 0; /* no XSLT to be done ... */
855 m_stylesheet_offset = 0;
856 m_stylesheet_nprl = p;
857 m_stylesheet_apdu = apdu;
858 m_timeout_mode = timeout_xsl;
864 void Yaz_Proxy::convert_xsl_delay()
867 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
868 if (npr->which == Z_NamePlusRecord_databaseRecord)
870 Z_External *r = npr->u.databaseRecord;
871 if (r->which == Z_External_octet)
874 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
876 xmlDocPtr res, doc = xmlParseMemory(
877 (char*) r->u.octet_aligned->buf,
878 r->u.octet_aligned->len);
881 yaz_log(YLOG_LOG, "%sXSLT convert %d",
882 m_session_str, m_stylesheet_offset);
883 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
890 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
891 m_stylesheet_nprl->records[m_stylesheet_offset]->
893 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
894 (char*) out_buf, out_len);
903 m_stylesheet_offset++;
904 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
906 m_timeout_mode = timeout_normal;
907 m_stylesheet_nprl = 0;
909 if (m_stylesheet_xsp)
910 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
912 m_stylesheet_xsp = 0;
913 timeout(m_client_idletime);
914 send_PDU_convert(m_stylesheet_apdu);
920 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
922 if (m_frontend_type[0] != -1)
925 for (i = 0; i < p->num_records; i++)
927 Z_NamePlusRecord *npr = p->records[i];
928 if (npr->which == Z_NamePlusRecord_databaseRecord)
930 Z_External *r = npr->u.databaseRecord;
931 if (r->which == Z_External_octet)
934 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
936 if (!m_usemarcon->m_stage1)
938 m_usemarcon->m_stage1 = new CDetails();
940 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
941 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
942 int res = m_usemarcon->m_stage1->Start();
947 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
948 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
950 if (!m_usemarcon->m_stage2)
952 m_usemarcon->m_stage2 = new CDetails();
954 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
955 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
956 res = m_usemarcon->m_stage2->Start();
960 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
964 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
967 npr->u.databaseRecord =
968 z_ext_record_oid(odr_encode(),
976 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
982 npr->u.databaseRecord =
983 z_ext_record_oid(odr_encode(),
985 (char*) r->u.octet_aligned->buf,
986 r->u.octet_aligned->len);
993 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
994 const char *backend_charset)
996 int sel = m_charset_converter->get_client_charset_selected();
997 const char *client_record_charset =
998 m_charset_converter->get_client_query_charset();
999 if (sel && backend_charset && client_record_charset &&
1000 strcmp(backend_charset, client_record_charset))
1003 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1005 yaz_marc_t mt = yaz_marc_create();
1006 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1007 yaz_marc_iconv(mt, cd);
1008 for (i = 0; i < p->num_records; i++)
1010 Z_NamePlusRecord *npr = p->records[i];
1011 if (npr->which == Z_NamePlusRecord_databaseRecord)
1013 Z_External *r = npr->u.databaseRecord;
1014 const Odr_oid *oid = r->direct_reference;
1018 if (!oid_oidcmp(oid, yaz_oid_recsyn_sutrs))
1020 WRBUF w = wrbuf_alloc();
1022 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1023 r->u.octet_aligned->len);
1024 npr->u.databaseRecord =
1025 z_ext_record_oid(odr_encode(), oid, wrbuf_buf(w),
1029 else if (!oid_oidcmp(oid, yaz_oid_recsyn_xml))
1033 else if (r->which == Z_External_octet)
1037 if (yaz_marc_decode_buf(mt,
1038 (char*) r->u.octet_aligned->buf,
1039 r->u.octet_aligned->len,
1042 npr->u.databaseRecord =
1043 z_ext_record_oid(odr_encode(), oid, result, rlen);
1044 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1051 yaz_iconv_close(cd);
1052 yaz_marc_destroy(mt);
1056 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1057 const char *backend_charset)
1060 if (!backend_charset)
1061 backend_charset = "MARC-8";
1062 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1063 yaz_marc_t mt = yaz_marc_create();
1064 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1065 yaz_marc_iconv(mt, cd);
1066 for (i = 0; i < p->num_records; i++)
1068 Z_NamePlusRecord *npr = p->records[i];
1069 if (npr->which == Z_NamePlusRecord_databaseRecord)
1071 Z_External *r = npr->u.databaseRecord;
1072 if (r->which == Z_External_OPAC)
1074 WRBUF w = wrbuf_alloc();
1076 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1077 npr->u.databaseRecord = z_ext_record_oid(
1078 odr_encode(), yaz_oid_recsyn_xml,
1079 wrbuf_buf(w), wrbuf_len(w));
1082 else if (r->which == Z_External_octet)
1086 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1087 r->u.octet_aligned->len,
1090 npr->u.databaseRecord =
1091 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
1098 yaz_iconv_close(cd);
1099 yaz_marc_destroy(mt);
1102 void Yaz_Proxy::logtime()
1104 #if HAVE_GETTIMEOFDAY
1105 struct timeval *tv = (struct timeval*) m_time_tv;
1109 gettimeofday(&tv1, 0);
1110 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1111 (tv1.tv_usec - tv->tv_usec);
1113 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1114 diff/1000000, (diff/1000)%1000);
1121 int Yaz_Proxy::send_http_response(int code)
1123 ODR o = odr_encode();
1124 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1125 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1127 hres->version = odr_strdup(o, m_http_version);
1128 if (m_http_keepalive)
1129 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1133 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate",
1134 "Basic realm=\"YAZ Proxy\"");
1137 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1139 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1143 int r = send_GDU(gdu, &len);
1144 m_bytes_sent += len;
1145 m_bw_stat.add_bytes(len);
1148 recv_GDU_more(true);
1153 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1155 ODR o = odr_encode();
1156 const char *ctype = "text/xml";
1157 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1158 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1160 hres->version = odr_strdup(o, m_http_version);
1161 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1162 if (m_http_keepalive)
1163 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1166 if (http_code == 401)
1167 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1169 static Z_SOAP_Handler soap_handlers[2] = {
1171 {"http://www.loc.gov/zing/srw/", 0,
1172 (Z_SOAP_fun) yaz_srw_codec},
1177 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1178 soap_package->which = Z_SOAP_generic;
1179 soap_package->u.generic =
1180 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1181 soap_package->u.generic->no = 0;
1182 soap_package->u.generic->ns = soap_handlers[0].ns;
1183 soap_package->u.generic->p = (void *) srw_pdu;
1184 soap_package->ns = m_soap_ns;
1185 z_soap_codec_enc_xsl(o, &soap_package,
1186 &hres->content_buf, &hres->content_len,
1187 soap_handlers, 0, m_s2z_stylesheet);
1188 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1190 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1194 int r = send_GDU(gdu, &len);
1195 m_bytes_sent += len;
1196 m_bw_stat.add_bytes(len);
1199 recv_GDU_more(true);
1204 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1206 ODR o = odr_encode();
1207 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1208 odr_malloc(o, sizeof(*diagnostic));
1209 int num_diagnostic = 1;
1210 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1211 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1214 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1215 Z_DefaultDiagFormat *ddf)
1217 int bib1_code = *ddf->condition;
1218 if (bib1_code == 109)
1220 srw_res->num_diagnostics = 1;
1221 srw_res->diagnostics = (Z_SRW_diagnostic *)
1222 odr_malloc(o, sizeof(*srw_res->diagnostics));
1223 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1224 yaz_diag_bib1_to_srw(*ddf->condition),
1229 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1231 ODR o = odr_encode();
1232 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1233 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1235 srw_res->numberOfRecords = odr_intdup (o, hits);
1236 if (records && records->which == Z_Records_DBOSD)
1238 srw_res->num_records =
1239 records->u.databaseOrSurDiagnostics->num_records;
1241 srw_res->records = (Z_SRW_record *)
1242 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1243 for (i = 0; i < srw_res->num_records; i++)
1245 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1246 if (npr->which != Z_NamePlusRecord_databaseRecord)
1248 srw_res->records[i].recordSchema = "diagnostic";
1249 srw_res->records[i].recordPacking = m_s2z_packing;
1250 srw_res->records[i].recordData_buf = "67";
1251 srw_res->records[i].recordData_len = 2;
1252 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1255 Z_External *r = npr->u.databaseRecord;
1257 if (r->which == Z_External_octet
1258 && !oid_oidcmp(r->direct_reference, yaz_oid_recsyn_xml))
1260 srw_res->records[i].recordSchema = m_schema;
1261 srw_res->records[i].recordPacking = m_s2z_packing;
1262 srw_res->records[i].recordData_buf = (char*)
1263 r->u.octet_aligned->buf;
1264 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1265 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1269 srw_res->records[i].recordSchema = "diagnostic";
1270 srw_res->records[i].recordPacking = m_s2z_packing;
1271 srw_res->records[i].recordData_buf = "67";
1272 srw_res->records[i].recordData_len = 2;
1273 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1277 if (records && records->which == Z_Records_NSD)
1280 http_code = z_to_srw_diag(odr_encode(), srw_res,
1281 records->u.nonSurrogateDiagnostic);
1283 return send_http_response(http_code);
1285 return send_srw_response(srw_pdu);
1289 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1290 int num_diagnostics, int http_code /* = 200 */)
1292 ODR o = odr_encode();
1293 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1294 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1296 srw_res->num_diagnostics = num_diagnostics;
1297 srw_res->diagnostics = diagnostics;
1298 return send_srw_response(srw_pdu, http_code);
1301 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1302 int num_diagnostics)
1304 Yaz_ProxyConfig *cfg = check_reconfigure();
1308 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1309 m_s2z_database, &len);
1312 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1313 Z_SRW_explainResponse *er = res->u.explain_response;
1315 er->record.recordData_buf = b;
1316 er->record.recordData_len = len;
1317 er->record.recordPacking = m_s2z_packing;
1318 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1320 er->diagnostics = diagnostics;
1321 er->num_diagnostics = num_diagnostics;
1322 return send_srw_response(res);
1325 return send_http_response(404);
1328 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1332 if (apdu->which == Z_APDU_initResponse)
1334 Z_InitResponse *res = apdu->u.initResponse;
1335 if (*res->result == 0)
1337 send_to_srw_client_error(3, 0);
1339 else if (!m_s2z_search_apdu)
1341 send_srw_explain_response(0, 0);
1345 handle_incoming_Z_PDU(m_s2z_search_apdu);
1348 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1350 m_s2z_search_apdu = 0;
1351 Z_SearchResponse *res = apdu->u.searchResponse;
1352 m_s2z_hit_count = *res->resultCount;
1353 if (res->records && res->records->which == Z_Records_NSD)
1355 send_to_srw_client_ok(0, res->records, 1);
1357 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1360 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1362 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1364 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1366 *pr->numberOfRecordsRequested =
1367 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1369 handle_incoming_Z_PDU(m_s2z_present_apdu);
1373 m_s2z_present_apdu = 0;
1374 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1377 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1380 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1382 m_s2z_present_apdu = 0;
1383 Z_PresentResponse *res = apdu->u.presentResponse;
1384 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1390 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1391 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1393 int r = send_Z_PDU(apdu, &len);
1394 m_bytes_sent += len;
1395 m_bw_stat.add_bytes(len);
1402 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1404 int kill_session = 0;
1405 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1408 *new_id = m_referenceId;
1410 if (apdu->which == Z_APDU_searchResponse)
1412 Z_SearchResponse *sr = apdu->u.searchResponse;
1413 Z_Records *p = sr->records;
1414 if (p && p->which == Z_Records_NSD)
1416 Z_DiagRec dr, *dr_p = &dr;
1417 dr.which = Z_DiagRec_defaultFormat;
1418 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1420 *sr->searchStatus = 0;
1421 display_diagrecs(&dr_p, 1);
1425 if (p && p->which == Z_Records_DBOSD)
1429 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1432 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1433 if (m_marcxml_mode == marcxml)
1434 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1437 convert_records_charset(p->u.databaseOrSurDiagnostics,
1439 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1443 if (sr->resultCount)
1445 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1447 if (*sr->resultCount < 0)
1449 m_flag_invalid_session = 1;
1452 *sr->searchStatus = 0;
1454 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1455 *sr->resultCount = 0;
1460 else if (apdu->which == Z_APDU_presentResponse)
1462 Z_PresentResponse *sr = apdu->u.presentResponse;
1463 Z_Records *p = sr->records;
1464 if (p && p->which == Z_Records_NSD)
1466 Z_DiagRec dr, *dr_p = &dr;
1467 dr.which = Z_DiagRec_defaultFormat;
1468 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1469 if (*sr->presentStatus == Z_PresentStatus_success)
1470 *sr->presentStatus = Z_PresentStatus_failure;
1471 display_diagrecs(&dr_p, 1);
1473 if (p && p->which == Z_Records_DBOSD)
1477 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1480 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1481 if (m_marcxml_mode == marcxml)
1482 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1485 convert_records_charset(p->u.databaseOrSurDiagnostics,
1487 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1491 else if (apdu->which == Z_APDU_initResponse)
1493 //Get and check negotiation record
1494 //from init response.
1495 handle_charset_lang_negotiation(apdu);
1497 if (m_initRequest_options)
1500 (Odr_bitmask *)odr_malloc(odr_encode(),
1501 sizeof(Odr_bitmask));
1502 ODR_MASK_ZERO(nopt);
1505 for (i = 0; i<24; i++)
1506 if (ODR_MASK_GET(m_initRequest_options, i) &&
1507 ODR_MASK_GET(apdu->u.initResponse->options, i))
1508 ODR_MASK_SET(nopt, i);
1509 apdu->u.initResponse->options = nopt;
1511 if (m_initRequest_version)
1513 Z_ProtocolVersion *nopt =
1514 (Odr_bitmask *)odr_malloc(odr_encode(),
1515 sizeof(Odr_bitmask));
1516 ODR_MASK_ZERO(nopt);
1519 for (i = 0; i<8; i++)
1520 if (ODR_MASK_GET(m_initRequest_version, i) &&
1521 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1522 ODR_MASK_SET(nopt, i);
1523 apdu->u.initResponse->protocolVersion = nopt;
1525 apdu->u.initResponse->preferredMessageSize =
1526 odr_intdup(odr_encode(),
1527 m_client->m_initResponse_preferredMessageSize >
1528 m_initRequest_preferredMessageSize ?
1529 m_initRequest_preferredMessageSize :
1530 m_client->m_initResponse_preferredMessageSize);
1531 apdu->u.initResponse->maximumRecordSize =
1532 odr_intdup(odr_encode(),
1533 m_client->m_initResponse_maximumRecordSize >
1534 m_initRequest_maximumRecordSize ?
1535 m_initRequest_maximumRecordSize :
1536 m_client->m_initResponse_maximumRecordSize);
1539 int r = send_PDU_convert(apdu);
1546 m_parent->pre_init();
1551 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1553 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1555 odr_reset(m_idAuthentication_odr);
1556 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1557 m_idAuthentication_ber_buf =
1558 odr_getbuf(m_idAuthentication_odr,
1559 &m_idAuthentication_ber_size, 0);
1562 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1567 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1569 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1570 ODR odr = odr_createmem(ODR_ENCODE);
1572 z_IdAuthentication(odr, &t, 1, 0);
1574 char *buf = odr_getbuf(odr, &sz, 0);
1575 if (buf && m_idAuthentication_ber_buf
1576 && sz == m_idAuthentication_ber_size
1577 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1583 if (!buf && !m_idAuthentication_ber_buf)
1588 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1591 const char *apdu_name_tmp = apdu_name(apdu);
1592 int r = send_Z_PDU(apdu, &len);
1593 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1594 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1596 apdu_name_tmp, get_hostname(), len);
1597 m_bytes_sent += len;
1601 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1603 if (apdu->which == Z_APDU_presentRequest)
1605 Z_PresentRequest *pr = apdu->u.presentRequest;
1606 int toget = *pr->numberOfRecordsRequested;
1607 int start = *pr->resultSetStartPoint;
1609 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1610 pr->resultSetId, start, toget);
1612 if (*m_parent->m_optimize == '0')
1615 if (!m_client->m_last_resultSetId)
1617 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1618 new_apdu->u.presentResponse->records =
1619 create_nonSurrogateDiagnostics(
1621 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1623 send_to_client(new_apdu);
1626 if (start < 1 || toget < 0)
1628 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1629 new_apdu->u.presentResponse->records =
1630 create_nonSurrogateDiagnostics(
1632 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1634 send_to_client(new_apdu);
1637 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1639 if (start+toget-1 > m_client->m_last_resultCount)
1641 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1642 new_apdu->u.presentResponse->records =
1643 create_nonSurrogateDiagnostics(
1645 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1647 send_to_client(new_apdu);
1650 Z_NamePlusRecordList *npr;
1652 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1653 m_session_str, start, toget, yaz_z3950oid_to_str(
1654 pr->preferredRecordSyntax, &oclass));
1656 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1657 pr->preferredRecordSyntax,
1658 pr->recordComposition))
1660 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1662 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1663 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1665 new_apdu->u.presentResponse->numberOfRecordsReturned
1666 = odr_intdup(odr_encode(), toget);
1668 new_apdu->u.presentResponse->records = (Z_Records*)
1669 odr_malloc(odr_encode(), sizeof(Z_Records));
1670 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1671 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1672 new_apdu->u.presentResponse->nextResultSetPosition =
1673 odr_intdup(odr_encode(), start+toget);
1675 send_to_client(new_apdu);
1681 if (apdu->which != Z_APDU_searchRequest)
1683 Z_SearchRequest *sr = apdu->u.searchRequest;
1684 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1685 Yaz_Z_Databases this_databases;
1687 this_databases.set(sr->num_databaseNames, (const char **)
1690 this_query->set_Z_Query(sr->query);
1692 // Check for non-negative piggyback params.
1693 if (*sr->smallSetUpperBound < 0
1694 || *sr->largeSetLowerBound < 0
1695 || *sr->mediumSetPresentNumber < 0)
1697 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1698 // Not a present request.. But can't find better diagnostic
1699 new_apdu->u.searchResponse->records =
1700 create_nonSurrogateDiagnostics(
1702 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1703 send_to_client(new_apdu);
1707 char query_str[4096];
1708 this_query->print(query_str, sizeof(query_str)-1);
1709 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1711 if (*m_parent->m_optimize != '0' &&
1712 m_client->m_last_ok && m_client->m_last_query &&
1713 m_client->m_last_query->match(this_query) &&
1714 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1715 m_client->m_last_databases.match(this_databases))
1718 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1719 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1721 Z_NamePlusRecordList *npr;
1722 int toget = *sr->mediumSetPresentNumber;
1723 Z_RecordComposition *comp = 0;
1725 if (toget > m_client->m_last_resultCount)
1726 toget = m_client->m_last_resultCount;
1728 if (sr->mediumSetElementSetNames)
1730 comp = (Z_RecordComposition *)
1731 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1732 comp->which = Z_RecordComp_simple;
1733 comp->u.simple = sr->mediumSetElementSetNames;
1736 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1737 sr->preferredRecordSyntax, comp))
1739 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1741 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1742 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1743 new_apdu->u.searchResponse->resultCount =
1744 &m_client->m_last_resultCount;
1746 new_apdu->u.searchResponse->numberOfRecordsReturned
1747 = odr_intdup(odr_encode(), toget);
1749 new_apdu->u.searchResponse->presentStatus =
1750 odr_intdup(odr_encode(), Z_PresentStatus_success);
1751 new_apdu->u.searchResponse->records = (Z_Records*)
1752 odr_malloc(odr_encode(), sizeof(Z_Records));
1753 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1754 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1755 new_apdu->u.searchResponse->nextResultSetPosition =
1756 odr_intdup(odr_encode(), toget+1);
1757 send_to_client(new_apdu);
1763 // send present request (medium size)
1764 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1767 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1768 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1769 pr->referenceId = sr->referenceId;
1770 pr->resultSetId = sr->resultSetName;
1771 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1772 *pr->numberOfRecordsRequested = toget;
1773 pr->recordComposition = comp;
1774 m_client->m_sr_transform = 1;
1778 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1779 m_client->m_last_resultCount <= 0)
1781 // large set. Return pseudo-search response immediately
1782 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1784 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1785 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1786 new_apdu->u.searchResponse->resultCount =
1787 &m_client->m_last_resultCount;
1788 send_to_client(new_apdu);
1793 Z_NamePlusRecordList *npr;
1794 int toget = m_client->m_last_resultCount;
1795 Z_RecordComposition *comp = 0;
1797 // send a present request (small set)
1799 if (sr->smallSetElementSetNames)
1801 comp = (Z_RecordComposition *)
1802 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1803 comp->which = Z_RecordComp_simple;
1804 comp->u.simple = sr->smallSetElementSetNames;
1807 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1808 sr->preferredRecordSyntax, comp))
1810 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1812 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1813 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1814 new_apdu->u.searchResponse->resultCount =
1815 &m_client->m_last_resultCount;
1817 new_apdu->u.searchResponse->numberOfRecordsReturned
1818 = odr_intdup(odr_encode(), toget);
1820 new_apdu->u.searchResponse->presentStatus =
1821 odr_intdup(odr_encode(), Z_PresentStatus_success);
1822 new_apdu->u.searchResponse->records = (Z_Records*)
1823 odr_malloc(odr_encode(), sizeof(Z_Records));
1824 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1825 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1826 new_apdu->u.searchResponse->nextResultSetPosition =
1827 odr_intdup(odr_encode(), toget+1);
1828 send_to_client(new_apdu);
1833 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1835 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1836 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1837 pr->referenceId = sr->referenceId;
1838 pr->resultSetId = sr->resultSetName;
1839 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1840 *pr->numberOfRecordsRequested = toget;
1841 pr->recordComposition = comp;
1842 m_client->m_sr_transform = 1;
1847 else // query doesn't match
1849 delete m_client->m_last_query;
1850 m_client->m_last_query = this_query;
1851 m_client->m_last_ok = 0;
1852 m_client->m_cache.clear();
1853 m_client->m_resultSetStartPoint = 0;
1855 xfree (m_client->m_last_resultSetId);
1856 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1858 m_client->m_last_databases.set(sr->num_databaseNames,
1859 (const char **) sr->databaseNames);
1865 void Yaz_Proxy::inc_request_no()
1868 char *cp = m_session_str + strlen(m_session_str)-1;
1871 while (*cp && *cp != ' ')
1874 sprintf(cp+1, "%d ", m_request_no);
1877 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1881 m_bytes_recv += len;
1883 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1884 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1885 m_session_str, gdu_name(apdu), len);
1888 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1889 if (apdu->which == Z_GDU_Z3950
1890 && apdu->u.z3950->which == Z_APDU_searchRequest)
1892 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1893 if (req->query && req->query->which == Z_Query_type_1)
1895 Z_RPNQuery *rpnquery = req->query->u.type_1;
1896 if (rpnquery->attributeSetId)
1898 rpnquery->attributeSetId[0] = -2;
1899 rpnquery->attributeSetId[1] = -1;
1900 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1906 #if HAVE_GETTIMEOFDAY
1907 gettimeofday((struct timeval *) m_time_tv, 0);
1909 m_bw_stat.add_bytes(len);
1910 m_pdu_stat.add_bytes(1);
1912 GDU *gdu = new GDU(apdu);
1914 if (gdu->get() == 0)
1917 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1922 m_in_queue.enqueue(gdu);
1923 recv_GDU_more(false);
1926 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1928 if (z_gdu->which == Z_GDU_HTTP_Request)
1930 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1931 const char *x_forwarded_for =
1932 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1933 if (x_forwarded_for)
1936 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1937 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1939 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1941 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1942 sprintf(m_session_str, "%ld:%d %.80s %d ",
1943 (long) time(0), m_session_no, m_peername, m_request_no);
1945 sprintf(m_session_str, "%ld:%d %d ",
1946 (long) time(0), m_session_no, m_request_no);
1951 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1954 m_parent->m_connect.cleanup(false);
1955 m_parent->m_connect.add_connect(m_peername);
1957 int connect_total = m_parent->m_connect.get_total(m_peername);
1958 int max_connect = m_parent->m_max_connect;
1960 if (max_connect && connect_total > max_connect)
1962 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1963 m_session_str, connect_total, max_connect);
1968 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1971 int limit_connect = m_parent->m_limit_connect;
1973 reduce = connect_total / limit_connect;
1978 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1980 HTTP_Forwarded(gdu->get());
1984 if (m_request_no == 1)
1988 connect_stat(block, reduce);
1992 m_timeout_mode = timeout_busy;
1998 int bw_total = m_bw_stat.get_total();
1999 int pdu_total = m_pdu_stat.get_total();
2000 int search_total = m_search_stat.get_total();
2002 assert(m_timeout_mode == timeout_busy);
2003 assert(m_timeout_gdu == 0);
2006 reduce += search_total / m_search_max;
2008 reduce += (bw_total/m_bw_max);
2011 if (pdu_total > m_pdu_max)
2013 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2014 reduce = (reduce > nreduce) ? reduce : nreduce;
2020 /* uncomment to force a big reduce */
2021 m_timeout_mode = timeout_reduce;
2022 m_timeout_gdu = gdu;
2023 timeout(3); // call us reduce seconds later
2028 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2029 m_session_str, reduce, bw_total, pdu_total, search_total,
2030 m_bw_max, m_pdu_max, m_search_max);
2032 m_timeout_mode = timeout_reduce;
2033 m_timeout_gdu = gdu;
2034 timeout(reduce); // call us reduce seconds later
2037 recv_GDU_normal(gdu);
2040 void Yaz_Proxy::recv_GDU_more(bool normal)
2043 if (normal && m_timeout_mode == timeout_busy)
2044 m_timeout_mode = timeout_normal;
2045 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2047 m_timeout_mode = timeout_busy;
2055 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2058 gdu->move_away_gdu(odr_decode(), &apdu);
2061 if (apdu->which == Z_GDU_Z3950)
2062 handle_incoming_Z_PDU(apdu->u.z3950);
2063 else if (apdu->which == Z_GDU_HTTP_Request)
2064 handle_incoming_HTTP(apdu->u.HTTP_Request);
2067 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2069 if (m_max_record_retrieve)
2071 if (apdu->which == Z_APDU_presentRequest)
2073 Z_PresentRequest *pr = apdu->u.presentRequest;
2074 if (pr->numberOfRecordsRequested &&
2075 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2076 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2081 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2083 if (apdu->which == Z_APDU_initRequest)
2085 if (m_initRequest_options &&
2086 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2087 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2089 // There is no negotiation proposal from
2090 // client's side. OK. The proxy negotiation
2092 Z_InitRequest *initRequest = apdu->u.initRequest;
2093 Z_OtherInformation **otherInfo;
2094 Z_OtherInformationUnit *oi;
2095 get_otherInfoAPDU(apdu, &otherInfo);
2096 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2099 ODR_MASK_SET(initRequest->options,
2100 Z_Options_negotiationModel);
2101 oi->which = Z_OtherInfo_externallyDefinedInfo;
2102 oi->information.externallyDefinedInfo =
2103 yaz_set_proposal_charneg(odr_encode(),
2104 (const char**)&m_proxy_negotiation_charset,
2105 m_proxy_negotiation_charset ? 1:0,
2106 (const char**)&m_proxy_negotiation_lang,
2107 m_proxy_negotiation_lang ? 1:0,
2111 else if (m_initRequest_options &&
2112 ODR_MASK_GET(m_initRequest_options,
2113 Z_Options_negotiationModel) &&
2114 m_charset_converter->get_target_query_charset())
2116 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2118 m_charset_converter->get_target_query_charset());
2119 Z_InitRequest *initRequest = apdu->u.initRequest;
2120 Z_CharSetandLanguageNegotiation *negotiation =
2121 yaz_get_charneg_record (initRequest->otherInfo);
2123 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2125 NMEM nmem = nmem_create();
2126 char **charsets = 0;
2127 int num_charsets = 0;
2131 yaz_get_proposal_charneg (nmem, negotiation,
2132 &charsets, &num_charsets,
2133 &langs, &num_langs, &selected);
2135 for (i = 0; i<num_charsets; i++)
2136 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2138 for (i = 0; i<num_langs; i++)
2139 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2142 const char *t_charset =
2143 m_charset_converter->get_target_query_charset();
2144 // sweep through charsets and pick the first supported
2146 for (i = 0; i<num_charsets; i++)
2148 const char *c_charset = charsets[i];
2149 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2152 if (i != num_charsets)
2154 // got one .. set up ODR for reverse direction
2155 const char *c_charset = charsets[i];
2156 odr_set_charset(odr_encode(), c_charset, t_charset);
2157 m_charset_converter->set_client_query_charset(c_charset);
2158 m_charset_converter->set_client_charset_selected(selected);
2161 ODR_MASK_CLEAR(m_initRequest_options,
2162 Z_Options_negotiationModel);
2163 yaz_del_charneg_record(&initRequest->otherInfo);
2167 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2171 else if (m_charset_converter->get_target_query_charset() &&
2172 m_proxy_negotiation_default_charset)
2174 m_charset_converter->
2175 set_client_query_charset(m_proxy_negotiation_default_charset);
2178 else if (apdu->which == Z_APDU_initResponse)
2180 Z_InitResponse *initResponse = apdu->u.initResponse;
2181 Z_OtherInformation **otherInfo;
2182 get_otherInfoAPDU(apdu, &otherInfo);
2184 Z_CharSetandLanguageNegotiation *charneg = 0;
2186 if (otherInfo && *otherInfo &&
2187 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2188 && (charneg = yaz_get_charneg_record(*otherInfo)))
2194 yaz_get_response_charneg(m_referenceId_mem, charneg,
2195 &charset, &lang, &selected);
2197 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2198 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2200 if (m_initRequest_options &&
2201 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2203 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2206 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2208 // negotiation-charset, negotiation-lang
2209 // elements of config file in use.
2211 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2214 // clear negotiation option.
2215 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2217 // Delete negotiation (charneg-3) entry.
2218 yaz_del_charneg_record(otherInfo);
2223 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2225 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2228 else if (m_charset_converter->get_client_query_charset())
2230 Z_OtherInformation **otherInfo;
2231 Z_OtherInformationUnit *oi;
2232 get_otherInfoAPDU(apdu, &otherInfo);
2233 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2236 ODR_MASK_SET(initResponse->options,
2237 Z_Options_negotiationModel);
2238 if (m_initRequest_options)
2239 ODR_MASK_SET(m_initRequest_options,
2240 Z_Options_negotiationModel);
2242 oi->which = Z_OtherInfo_externallyDefinedInfo;
2243 oi->information.externallyDefinedInfo =
2244 yaz_set_response_charneg(
2246 m_charset_converter->get_client_query_charset(),
2248 m_charset_converter->get_client_charset_selected());
2255 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2257 const char *addinfo)
2259 Z_Records *rec = (Z_Records *)
2260 odr_malloc (odr, sizeof(*rec));
2262 odr_malloc (odr, sizeof(*err));
2263 Z_DiagRec *drec = (Z_DiagRec *)
2264 odr_malloc (odr, sizeof(*drec));
2265 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2266 odr_malloc (odr, sizeof(*dr));
2268 rec->which = Z_Records_NSD;
2269 rec->u.nonSurrogateDiagnostic = dr;
2270 dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
2271 dr->condition = err;
2272 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2273 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2277 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2279 if (apdu->which == Z_APDU_searchRequest &&
2280 apdu->u.searchRequest->query &&
2281 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2282 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2284 Z_RPNQuery *rpnquery = 0;
2285 Z_SearchRequest *sr = apdu->u.searchRequest;
2288 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2289 sr->query->u.type_104->u.cql);
2291 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2292 &rpnquery, odr_encode(),
2295 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2298 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2299 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2301 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2302 new_apdu->u.searchResponse->records =
2303 create_nonSurrogateDiagnostics(odr_encode(),
2304 yaz_diag_srw_to_bib1(r),
2306 *new_apdu->u.searchResponse->searchStatus = 0;
2308 send_to_client(new_apdu);
2314 sr->query->which = Z_Query_type_1;
2315 sr->query->u.type_1 = rpnquery;
2322 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2324 if (apdu->which == Z_APDU_searchRequest &&
2325 apdu->u.searchRequest->query)
2327 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2328 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2331 m_charset_converter->set_client_query_charset("UTF-8");
2332 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2333 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2340 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2342 if (apdu->which == Z_APDU_searchRequest)
2344 Z_SearchRequest *sr = apdu->u.searchRequest;
2348 Yaz_ProxyConfig *cfg = check_reconfigure();
2350 err = cfg->check_query(odr_encode(), m_default_target,
2351 sr->query, &addinfo);
2354 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2356 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2357 new_apdu->u.searchResponse->records =
2358 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2359 *new_apdu->u.searchResponse->searchStatus = 0;
2361 send_to_client(new_apdu);
2369 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2371 if (apdu->which != Z_APDU_initRequest)
2372 return 1; // pass if no init request
2373 Z_InitRequest *req = apdu->u.initRequest;
2375 Yaz_ProxyConfig *cfg = check_reconfigure();
2377 return 1; // pass if no config
2380 if (req->idAuthentication == 0)
2382 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2385 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2387 ret = cfg->client_authentication(
2389 req->idAuthentication->u.idPass->userId,
2390 req->idAuthentication->u.idPass->groupId,
2391 req->idAuthentication->u.idPass->password,
2394 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2396 char user[64], pass[64];
2399 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2400 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2404 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2409 int Yaz_Proxy::handle_global_authentication(Z_APDU *apdu)
2411 if (apdu->which != Z_APDU_initRequest)
2412 return 1; // pass if no init request
2413 Z_InitRequest *req = apdu->u.initRequest;
2415 Yaz_ProxyConfig *cfg = check_reconfigure();
2417 return 1; // pass if no config
2420 if (req->idAuthentication == 0)
2422 ret = cfg->global_client_authentication(0, 0, 0,
2425 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2427 ret = cfg->global_client_authentication(
2428 req->idAuthentication->u.idPass->userId,
2429 req->idAuthentication->u.idPass->groupId,
2430 req->idAuthentication->u.idPass->password,
2433 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2435 char user[64], pass[64];
2438 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2439 ret = cfg->global_client_authentication(user, 0, pass,
2443 ret = cfg->global_client_authentication(0, 0, 0, m_peername);
2447 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2449 m_marcxml_mode = none;
2450 if (apdu->which == Z_APDU_searchRequest)
2452 Z_SearchRequest *sr = apdu->u.searchRequest;
2455 Yaz_ProxyConfig *cfg = check_reconfigure();
2457 Z_RecordComposition rc_temp, *rc = 0;
2458 if (sr->smallSetElementSetNames)
2460 rc_temp.which = Z_RecordComp_simple;
2461 rc_temp.u.simple = sr->smallSetElementSetNames;
2465 if (sr->preferredRecordSyntax)
2466 oid_oidcpy(m_frontend_type, sr->preferredRecordSyntax);
2468 m_frontend_type[0] = -1;
2470 char *stylesheet_name = 0;
2472 err = cfg->check_syntax(odr_encode(),
2474 sr->preferredRecordSyntax, rc,
2475 &addinfo, &stylesheet_name, &m_schema,
2476 &m_backend_type, &m_backend_charset,
2477 &m_usemarcon_ini_stage1,
2478 &m_usemarcon_ini_stage2);
2479 if (stylesheet_name)
2481 m_parent->low_socket_close();
2484 if (m_stylesheet_xsp)
2485 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2486 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2489 m_stylesheet_offset = 0;
2490 xfree(stylesheet_name);
2492 m_parent->low_socket_open();
2496 sr->smallSetElementSetNames = 0;
2497 sr->mediumSetElementSetNames = 0;
2498 m_marcxml_mode = marcxml;
2499 sr->preferredRecordSyntax =
2500 yaz_string_to_oid_odr(
2501 yaz_oid_std(), CLASS_RECSYN,
2502 m_backend_type ? m_backend_type : "usmarc",
2507 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2509 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2510 new_apdu->u.searchResponse->records =
2511 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2512 *new_apdu->u.searchResponse->searchStatus = 0;
2514 send_to_client(new_apdu);
2518 else if (m_backend_type)
2520 sr->preferredRecordSyntax =
2521 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN,
2522 m_backend_type, odr_encode());
2525 else if (apdu->which == Z_APDU_presentRequest)
2527 Z_PresentRequest *pr = apdu->u.presentRequest;
2530 Yaz_ProxyConfig *cfg = check_reconfigure();
2532 if (pr->preferredRecordSyntax)
2533 oid_oidcpy(m_frontend_type, pr->preferredRecordSyntax);
2535 m_frontend_type[0] = -1;
2537 char *stylesheet_name = 0;
2539 err = cfg->check_syntax(odr_encode(), m_default_target,
2540 pr->preferredRecordSyntax,
2541 pr->recordComposition,
2542 &addinfo, &stylesheet_name, &m_schema,
2543 &m_backend_type, &m_backend_charset,
2544 &m_usemarcon_ini_stage1,
2545 &m_usemarcon_ini_stage2
2547 if (stylesheet_name)
2549 m_parent->low_socket_close();
2552 if (m_stylesheet_xsp)
2553 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2554 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2557 m_stylesheet_offset = 0;
2558 xfree(stylesheet_name);
2560 m_parent->low_socket_open();
2564 pr->recordComposition = 0;
2565 m_marcxml_mode = marcxml;
2567 pr->preferredRecordSyntax =
2568 yaz_string_to_oid_odr(
2569 yaz_oid_std(), CLASS_RECSYN,
2570 m_backend_type ? m_backend_type : "usmarc",
2575 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2577 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2578 new_apdu->u.presentResponse->records =
2579 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2580 *new_apdu->u.presentResponse->presentStatus =
2581 Z_PresentStatus_failure;
2583 send_to_client(new_apdu);
2587 else if (m_backend_type)
2589 pr->preferredRecordSyntax =
2590 yaz_string_to_oid_odr(yaz_oid_std(),
2591 CLASS_RECSYN, m_backend_type,
2598 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2602 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2603 odr_malloc(o, sizeof(Z_ElementSetNames));
2604 esn->which = Z_ElementSetNames_generic;
2605 esn->u.generic = odr_strdup(o, schema);
2609 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2612 Yaz_ProxyConfig *cfg = check_reconfigure();
2614 t = cfg->get_explain_name(db, backend_db);
2616 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2623 xfree(m_default_target);
2624 m_default_target = xstrdup(t);
2628 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2631 if (strcmp(hreq->method, "GET"))
2633 if (hreq->path[0] != '/')
2635 const char *cp = hreq->path;
2638 if (*cp == '/' && strchr("/.", cp[1]))
2643 Yaz_ProxyConfig *cfg = check_reconfigure();
2645 if (!cfg->get_file_access_info(hreq->path+1))
2648 const char *fname = hreq->path+1;
2649 if (stat(fname, &sbuf))
2651 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2655 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2657 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2660 if (sbuf.st_size > (off_t) 1000000)
2662 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2667 ODR o = odr_encode();
2669 const char *ctype = cfg->check_mime_type(fname);
2670 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2671 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2673 hres->version = odr_strdup(o, m_http_version);
2674 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2675 if (m_http_keepalive)
2676 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2680 hres->content_len = sbuf.st_size;
2681 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2682 FILE *f = fopen(fname, "rb");
2685 fread(hres->content_buf, 1, hres->content_len, f);
2692 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2694 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2698 send_GDU(gdu, &len);
2699 recv_GDU_more(true);
2703 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2707 odr_destroy(m_s2z_odr_init);
2710 if (m_s2z_odr_search)
2712 odr_destroy(m_s2z_odr_search);
2713 m_s2z_odr_search = 0;
2716 m_http_keepalive = 0;
2718 if (!strcmp(hreq->version, "1.0"))
2720 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2721 if (v && !strcmp(v, "Keep-Alive"))
2722 m_http_keepalive = 1;
2724 m_http_keepalive = 0;
2725 m_http_version = "1.0";
2729 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2730 if (v && !strcmp(v, "close"))
2731 m_http_keepalive = 0;
2733 m_http_keepalive = 1;
2734 m_http_version = "1.1";
2737 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2738 char authorization_str[255];
2739 *authorization_str = '\0';
2740 if (a && strncasecmp(a, "Basic ", 6) == 0)
2741 base64_decode(a + 6, authorization_str, 254);
2743 Z_SRW_PDU *srw_pdu = 0;
2744 Z_SOAP *soap_package = 0;
2746 Z_SRW_diagnostic *diagnostic = 0;
2747 int num_diagnostic = 0;
2749 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2751 if (file_access(hreq))
2755 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2757 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2758 &charset, &diagnostic, &num_diagnostic) == 0)
2760 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2761 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2762 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2763 m_s2z_init_apdu = 0;
2764 m_s2z_search_apdu = 0;
2765 m_s2z_present_apdu = 0;
2767 m_s2z_stylesheet = 0;
2769 Z_IdAuthentication *auth = NULL;
2770 if (srw_pdu->username && srw_pdu->password)
2772 yaz_log(YLOG_LOG, "username/password: %s/%s\n",
2773 srw_pdu->username, srw_pdu->password);
2774 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2775 auth->which = Z_IdAuthentication_idPass;
2776 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2777 auth->u.idPass->groupId = NULL;
2778 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, srw_pdu->password);
2779 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, srw_pdu->username);
2783 if (*authorization_str)
2785 yaz_log(YLOG_LOG, "authorization_str present: %s\n", authorization_str);
2786 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2787 auth->which = Z_IdAuthentication_idPass;
2788 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2789 auth->u.idPass->groupId = NULL;
2790 char *p = strchr(authorization_str, ':');
2795 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2797 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2801 // Use _client_ IP as shown in the log entries...!
2802 yaz_log(YLOG_LOG, "No authorization_str present: use client IP: %s\n", m_peername);
2804 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2805 auth->which = Z_IdAuthentication_idPass;
2806 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2807 auth->u.idPass->groupId = NULL;
2808 auth->u.idPass->password = NULL;
2809 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, m_peername);
2813 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2816 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2818 const char *backend_db = srw_req->database;
2819 srw_get_client(srw_req->database, &backend_db);
2821 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2822 // recordXPath unsupported.
2823 if (srw_req->recordXPath)
2825 yaz_add_srw_diagnostic(odr_decode(),
2826 &diagnostic, &num_diagnostic,
2830 if (srw_req->sort_type != Z_SRW_sort_type_none)
2832 yaz_add_srw_diagnostic(odr_decode(),
2833 &diagnostic, &num_diagnostic,
2837 if (srw_req->stylesheet)
2839 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2841 // set packing for response records ..
2842 if (srw_req->recordPacking &&
2843 !strcmp(srw_req->recordPacking, "xml"))
2844 m_s2z_packing = Z_SRW_recordPacking_XML;
2846 m_s2z_packing = Z_SRW_recordPacking_string;
2850 Z_SRW_PDU *srw_pdu =
2851 yaz_srw_get(odr_encode(),
2852 Z_SRW_searchRetrieve_response);
2853 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2855 srw_res->diagnostics = diagnostic;
2856 srw_res->num_diagnostics = num_diagnostic;
2857 send_srw_response(srw_pdu);
2861 // prepare search PDU
2862 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2863 Z_APDU_searchRequest);
2864 Z_SearchRequest *z_searchRequest =
2865 m_s2z_search_apdu->u.searchRequest;
2867 z_searchRequest->num_databaseNames = 1;
2868 z_searchRequest->databaseNames = (char**)
2869 odr_malloc(m_s2z_odr_search, sizeof(char *));
2870 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2873 // query transformation
2874 Z_Query *query = (Z_Query *)
2875 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2876 z_searchRequest->query = query;
2878 if (srw_req->query_type == Z_SRW_query_type_cql)
2880 Z_External *ext = (Z_External *)
2881 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2882 ext->direct_reference =
2883 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2884 ext->indirect_reference = 0;
2885 ext->descriptor = 0;
2886 ext->which = Z_External_CQL;
2887 ext->u.cql = srw_req->query.cql;
2889 query->which = Z_Query_type_104;
2890 query->u.type_104 = ext;
2892 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2894 Z_RPNQuery *RPNquery;
2895 YAZ_PQF_Parser pqf_parser;
2897 pqf_parser = yaz_pqf_create ();
2899 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2900 srw_req->query.pqf);
2903 const char *pqf_msg;
2905 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2907 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2908 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2910 send_to_srw_client_error(10, 0);
2913 query->which = Z_Query_type_1;
2914 query->u.type_1 = RPNquery;
2916 yaz_pqf_destroy (pqf_parser);
2920 send_to_srw_client_error(7, "query");
2925 m_s2z_present_apdu = 0;
2927 if (srw_req->maximumRecords)
2928 max = *srw_req->maximumRecords;
2930 if (srw_req->startRecord)
2931 start = *srw_req->startRecord;
2934 // Some backend, such as Voyager doesn't honor piggyback
2935 // So we use present always (0 &&).
2936 if (0 && start <= 1) // Z39.50 piggyback
2938 *z_searchRequest->smallSetUpperBound = max;
2939 *z_searchRequest->mediumSetPresentNumber = max;
2940 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2942 z_searchRequest->preferredRecordSyntax =
2943 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2945 if (srw_req->recordSchema)
2947 z_searchRequest->smallSetElementSetNames =
2948 z_searchRequest->mediumSetElementSetNames =
2949 mk_esn_from_schema(m_s2z_odr_search,
2950 srw_req->recordSchema);
2953 else // Z39.50 present
2955 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2956 Z_APDU_presentRequest);
2957 Z_PresentRequest *z_presentRequest =
2958 m_s2z_present_apdu->u.presentRequest;
2959 *z_presentRequest->resultSetStartPoint = start;
2960 *z_presentRequest->numberOfRecordsRequested = max;
2962 z_presentRequest->preferredRecordSyntax =
2963 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2964 if (srw_req->recordSchema)
2966 z_presentRequest->recordComposition =
2967 (Z_RecordComposition *)
2968 odr_malloc(m_s2z_odr_search,
2969 sizeof(Z_RecordComposition));
2970 z_presentRequest->recordComposition->which =
2971 Z_RecordComp_simple;
2972 z_presentRequest->recordComposition->u.simple =
2973 mk_esn_from_schema(m_s2z_odr_search,
2974 srw_req->recordSchema);
2980 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2981 Z_APDU_initRequest);
2983 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2985 // prevent m_initRequest_apdu memory from being grabbed
2986 // in Yaz_Proxy::handle_incoming_Z_PDU
2987 m_initRequest_apdu = m_s2z_init_apdu;
2988 handle_incoming_Z_PDU(m_s2z_init_apdu);
2993 handle_incoming_Z_PDU(m_s2z_search_apdu);
2997 else if (srw_pdu->which == Z_SRW_explain_request)
2999 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
3001 const char *backend_db = srw_req->database;
3002 srw_get_client(srw_req->database, &backend_db);
3004 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3007 if (srw_req->stylesheet)
3009 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3011 if (srw_req->recordPacking &&
3012 !strcmp(srw_req->recordPacking, "xml"))
3013 m_s2z_packing = Z_SRW_recordPacking_XML;
3015 m_s2z_packing = Z_SRW_recordPacking_string;
3019 send_srw_explain_response(diagnostic, num_diagnostic);
3025 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3026 Z_APDU_initRequest);
3028 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3030 // prevent m_initRequest_apdu memory from being grabbed
3031 // in Yaz_Proxy::handle_incoming_Z_PDU
3032 m_initRequest_apdu = m_s2z_init_apdu;
3033 handle_incoming_Z_PDU(m_s2z_init_apdu);
3036 send_srw_explain_response(0, 0);
3039 else if (srw_pdu->which == Z_SRW_scan_request)
3041 m_s2z_database = odr_strdup(m_s2z_odr_init,
3042 srw_pdu->u.scan_request->database);
3044 yaz_add_srw_diagnostic(odr_decode(),
3045 &diagnostic, &num_diagnostic,
3047 Z_SRW_PDU *srw_pdu =
3048 yaz_srw_get(odr_encode(),
3049 Z_SRW_scan_response);
3050 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3052 srw_res->diagnostics = diagnostic;
3053 srw_res->num_diagnostics = num_diagnostic;
3054 send_srw_response(srw_pdu);
3061 send_to_srw_client_error(4, 0);
3064 send_http_response(400);
3067 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3070 Z_OtherInformation **oi;
3071 get_otherInfoAPDU(apdu, &oi);
3073 if (apdu->u.initRequest->implementationId)
3074 yaz_log(YLOG_LOG, "%simplementationId: %s",
3075 m_session_str, apdu->u.initRequest->implementationId);
3076 if (apdu->u.initRequest->implementationName)
3077 yaz_log(YLOG_LOG, "%simplementationName: %s",
3078 m_session_str, apdu->u.initRequest->implementationName);
3079 if (apdu->u.initRequest->implementationVersion)
3080 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3081 m_session_str, apdu->u.initRequest->implementationVersion);
3082 if (m_initRequest_apdu == 0)
3084 if (m_initRequest_mem)
3085 nmem_destroy(m_initRequest_mem);
3087 m_initRequest_apdu = apdu;
3088 m_initRequest_mem = odr_extract_mem(odr_decode());
3090 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3091 preferredMessageSize;
3092 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3093 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3095 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3097 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3098 yaz_get_charneg_record(*oi);
3100 // Save proposal charsets and langs.
3101 if (ODR_MASK_GET(apdu->u.initRequest->options,
3102 Z_Options_negotiationModel)
3103 && charSetandLangRecord)
3106 yaz_get_proposal_charneg(m_referenceId_mem,
3107 charSetandLangRecord,
3108 &m_initRequest_oi_negotiation_charsets,
3109 &m_initRequest_oi_negotiation_num_charsets,
3110 &m_initRequest_oi_negotiation_langs,
3111 &m_initRequest_oi_negotiation_num_langs,
3112 &m_initRequest_oi_negotiation_selected);
3114 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3116 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3117 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3118 m_initRequest_oi_negotiation_charsets[i]:"none");
3120 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3122 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3123 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3124 m_initRequest_oi_negotiation_langs[i]:"none");
3126 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3127 m_session_str, m_initRequest_oi_negotiation_selected);
3129 // save init options for the response..
3130 m_initRequest_options = apdu->u.initRequest->options;
3132 apdu->u.initRequest->options =
3133 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3134 sizeof(Odr_bitmask));
3135 ODR_MASK_ZERO(apdu->u.initRequest->options);
3137 for (i = 0; i<= 24; i++)
3138 ODR_MASK_SET(apdu->u.initRequest->options, i);
3139 // check negotiation option
3140 if (!ODR_MASK_GET(m_initRequest_options,
3141 Z_Options_negotiationModel))
3143 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3144 Z_Options_negotiationModel);
3146 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3147 Z_Options_concurrentOperations);
3149 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3150 apdu->u.initRequest->protocolVersion =
3151 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3152 sizeof(Odr_bitmask));
3153 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3155 for (i = 0; i<= 8; i++)
3156 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3158 handle_charset_lang_negotiation(apdu);
3159 if (m_client->m_init_flag)
3161 if (handle_init_response_for_invalid_session(apdu))
3163 if (m_client->m_initResponse)
3165 Z_APDU *apdu2 = m_client->m_initResponse;
3166 apdu2->u.initResponse->otherInfo = 0;
3167 if (m_client->m_cookie && *m_client->m_cookie)
3168 set_otherInformationString(apdu2, yaz_oid_userinfo_cookie,
3169 1, m_client->m_cookie);
3170 apdu2->u.initResponse->referenceId =
3171 apdu->u.initRequest->referenceId;
3172 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3173 apdu2->u.initResponse->protocolVersion =
3174 m_client->m_initResponse_version;
3176 handle_charset_lang_negotiation(apdu2);
3178 if (m_timeout_mode == timeout_busy)
3179 m_timeout_mode = timeout_normal;
3180 send_to_client(apdu2);
3184 m_client->m_init_flag = 1;
3186 if (m_num_msg_threads && m_my_thread)
3188 Auth_Msg *m = new Auth_Msg;
3190 z_APDU(odr_encode(), &apdu, 0, "encode");
3191 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3192 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3193 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3194 odr_reset(odr_encode());
3197 m_my_thread->put(m);
3201 int ret = handle_authentication(apdu);
3202 result_authentication(apdu, ret);
3206 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3208 Z_ReferenceId **refid = get_referenceIdP(apdu);
3209 nmem_reset(m_referenceId_mem);
3210 if (refid && *refid)
3212 m_referenceId = (Z_ReferenceId *)
3213 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3214 m_referenceId->len = m_referenceId->size = (*refid)->len;
3215 m_referenceId->buf = (unsigned char *)
3216 nmem_malloc(m_referenceId_mem, (*refid)->len);
3217 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3222 if (!m_client && m_flag_invalid_session)
3224 // Got request for a session that is invalid..
3225 m_apdu_invalid_session = apdu; // save package
3226 m_mem_invalid_session = odr_extract_mem(odr_decode());
3227 apdu = m_initRequest_apdu; // but throw an init to the target
3230 if (apdu->which == Z_APDU_searchRequest)
3231 m_search_stat.add_bytes(1);
3233 // Handle global authentication
3234 if (!handle_global_authentication(apdu))
3237 { // HTTP. Send unauthorized
3238 send_http_response(401);
3243 // Z39.50 just shutdown
3250 // Determine our client.
3251 Z_OtherInformation **oi;
3252 get_otherInfoAPDU(apdu, &oi);
3253 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3257 { // HTTP. Send not found
3258 send_http_response(404);
3263 // Z39.50 just shutdown
3269 m_client->m_server = this;
3271 if (apdu->which == Z_APDU_initRequest)
3274 handle_incoming_Z_PDU_2(apdu);
3277 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3279 handle_max_record_retrieve(apdu);
3282 apdu = handle_syntax_validation(apdu);
3285 apdu = handle_query_transformation(apdu);
3288 apdu = handle_target_charset_conversion(apdu);
3291 apdu = handle_query_validation(apdu);
3294 apdu = result_set_optimize(apdu);
3298 m_client->timeout(m_target_idletime); // mark it active even
3299 recv_GDU_more(true);
3300 // though we didn't use it
3304 // delete other info construct completely if 0 elements
3305 Z_OtherInformation **oi;
3306 get_otherInfoAPDU(apdu, &oi);
3307 if (oi && *oi && (*oi)->num_elements == 0)
3310 if (apdu->which == Z_APDU_presentRequest &&
3311 m_client->m_resultSetStartPoint == 0)
3313 Z_PresentRequest *pr = apdu->u.presentRequest;
3314 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3315 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3317 m_client->m_resultSetStartPoint = 0;
3319 if (m_client->send_to_target(apdu) < 0)
3321 m_client->shutdown();
3324 m_client->m_waiting = 1;
3327 void Yaz_Proxy::connectNotify()
3331 void Yaz_Proxy::releaseClient()
3333 xfree(m_proxyTarget);
3335 m_flag_invalid_session = 0;
3336 // only keep if keep_alive flag is set...
3338 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3339 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3340 m_client->m_waiting == 0)
3342 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3344 m_client->get_hostname());
3345 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3346 m_session_str, m_client->m_pdu_recv,
3347 m_client->m_bytes_sent + m_client->m_bytes_recv,
3348 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3349 assert (m_client->m_waiting != 2);
3350 // Tell client (if any) that no server connection is there..
3351 m_client->m_server = 0;
3356 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3358 m_client->get_hostname());
3359 assert (m_client->m_waiting != 2);
3365 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3371 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3375 m_parent->pre_init();
3378 bool Yaz_Proxy::dec_ref()
3380 m_http_keepalive = 0;
3383 if (m_ref_count > 0)
3392 const char *Yaz_ProxyClient::get_session_str()
3396 return m_server->get_session_str();
3399 void Yaz_ProxyClient::shutdown()
3401 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3406 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3407 m_server->dec_ref();
3413 void Yaz_Proxy::failNotify()
3416 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3420 void Yaz_Proxy::send_response_fail_client(const char *addr)
3424 Z_SRW_diagnostic *diagnostic = 0;
3425 int num_diagnostic = 0;
3427 yaz_add_srw_diagnostic(odr_encode(),
3428 &diagnostic, &num_diagnostic,
3429 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3430 if (m_s2z_search_apdu)
3431 send_srw_search_response(diagnostic, num_diagnostic);
3433 send_srw_explain_response(diagnostic, num_diagnostic);
3436 void Yaz_ProxyClient::failNotify()
3439 m_server->inc_request_no();
3440 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3441 get_session_str(), get_hostname());
3444 m_server->send_response_fail_client(get_hostname());
3448 void Yaz_ProxyClient::connectNotify()
3450 const char *s = get_session_str();
3451 const char *h = get_hostname();
3452 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3454 timeout(m_target_idletime);
3459 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3460 *the_PDU_Observable, int fd)
3462 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3465 Yaz_ProxyClient::~Yaz_ProxyClient()
3470 m_next->m_prev = m_prev;
3471 m_waiting = 2; // for debugging purposes only.
3472 odr_destroy(m_init_odr);
3473 odr_destroy(m_idAuthentication_odr);
3474 delete m_last_query;
3475 xfree (m_last_resultSetId);
3479 void Yaz_ProxyClient::pre_init_client()
3481 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3482 Z_InitRequest *req = apdu->u.initRequest;
3485 for (i = 0; i<= 24; i++)
3486 ODR_MASK_SET(req->options, i);
3487 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3488 Z_Options_negotiationModel);
3489 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3490 Z_Options_concurrentOperations);
3491 for (i = 0; i<= 10; i++)
3492 ODR_MASK_SET(req->protocolVersion, i);
3494 if (send_to_target(apdu) < 0)
3505 void Yaz_Proxy::pre_init()
3508 const char *name = 0;
3509 const char *zurl_in_use[MAX_ZURL_PLEX];
3510 int limit_bw, limit_pdu, limit_req, limit_search;
3511 int target_idletime, client_idletime;
3513 int keepalive_limit_bw, keepalive_limit_pdu;
3515 const char *cql2rpn = 0;
3516 const char *authentication = 0;
3517 const char *negotiation_charset = 0;
3518 const char *negotiation_lang = 0;
3520 Yaz_ProxyConfig *cfg = check_reconfigure();
3524 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3529 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3530 &limit_bw, &limit_pdu, &limit_req,
3532 &target_idletime, &client_idletime,
3534 &keepalive_limit_bw,
3535 &keepalive_limit_pdu,
3539 &negotiation_charset,
3547 for (j = 0; zurl_in_use[j]; j++)
3551 int spare_waiting = 0;
3554 for (c = m_clientPool; c; c = c->m_next)
3556 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3558 if (c->m_cookie == 0)
3560 if (c->m_server == 0)
3572 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3573 "sparew=%d preinit=%d",m_session_str,
3574 name, zurl_in_use[j], in_use, other,
3575 spare, spare_waiting, pre_init);
3576 if (spare + spare_waiting < pre_init)
3578 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3579 c->m_next = m_clientPool;
3581 c->m_next->m_prev = &c->m_next;
3583 c->m_prev = &m_clientPool;
3585 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3586 c->set_APDU_yazlog(1);
3588 c->set_APDU_yazlog(0);
3590 if (c->client(zurl_in_use[j]))
3598 c->m_target_idletime = target_idletime;
3599 c->m_seqno = m_seqno++;
3606 void Yaz_Proxy::timeoutNotify()
3611 switch(m_timeout_mode)
3613 case timeout_normal:
3617 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3620 case timeout_reduce:
3621 timeout(m_client_idletime);
3622 m_timeout_mode = timeout_busy;
3623 gdu = m_timeout_gdu;
3625 recv_GDU_normal(gdu);
3628 assert(m_stylesheet_nprl);
3629 convert_xsl_delay();
3630 recv_GDU_more(true);
3640 void Yaz_Proxy::markInvalid()
3643 m_flag_invalid_session = 1;
3646 void Yaz_ProxyClient::timeoutNotify()
3649 m_server->inc_request_no();
3651 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3655 m_server->send_response_fail_client(get_hostname());
3657 Yaz_Proxy *proxy_root = m_root;
3661 proxy_root->pre_init();
3664 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3665 Yaz_Proxy *parent) :
3666 Z_Assoc (the_PDU_Observable)
3673 m_last_resultSetId = 0;
3674 m_last_resultCount = 0;
3678 m_init_odr = odr_createmem (ODR_DECODE);
3680 m_initResponse_options = 0;
3681 m_initResponse_version = 0;
3682 m_initResponse_preferredMessageSize = 0;
3683 m_initResponse_maximumRecordSize = 0;
3684 m_resultSetStartPoint = 0;
3685 m_bytes_sent = m_bytes_recv = 0;
3689 m_target_idletime = 600;
3691 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3692 m_idAuthentication_ber_buf = 0;
3693 m_idAuthentication_ber_size = 0;
3696 const char *Yaz_Proxy::option(const char *name, const char *value)
3698 if (!strcmp (name, "optimize")) {
3701 m_optimize = xstrdup (value);
3708 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3713 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3715 if (apdu->which == Z_GDU_Z3950)
3716 recv_Z_PDU(apdu->u.z3950, len);
3717 else if (apdu->which == Z_GDU_HTTP_Response)
3718 recv_HTTP_response(apdu->u.HTTP_Response, len);
3723 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3725 if (!m_flag_invalid_session)
3727 m_flag_invalid_session = 0;
3728 handle_incoming_Z_PDU(m_apdu_invalid_session);
3729 assert (m_mem_invalid_session);
3730 nmem_destroy(m_mem_invalid_session);
3731 m_mem_invalid_session = 0;
3735 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3737 m_bytes_recv += len;
3741 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3742 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3743 apdu_name(apdu), get_hostname(), len);
3744 if (apdu->which == Z_APDU_initResponse)
3746 if (!m_server) // if this is a pre init session , check for more
3748 NMEM nmem = odr_extract_mem (odr_decode());
3749 odr_reset (m_init_odr);
3750 nmem_transfer (m_init_odr->mem, nmem);
3751 m_initResponse = apdu;
3752 m_initResponse_options = apdu->u.initResponse->options;
3753 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3754 m_initResponse_preferredMessageSize =
3755 *apdu->u.initResponse->preferredMessageSize;
3756 m_initResponse_maximumRecordSize =
3757 *apdu->u.initResponse->maximumRecordSize;
3759 Z_InitResponse *ir = apdu->u.initResponse;
3761 // apply YAZ Proxy version
3762 char *imv0 = ir->implementationVersion;
3763 char *imv1 = (char*)
3764 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3769 strcat(imv1, "/" VERSION);
3771 ir->implementationVersion = imv1;
3773 // apply YAZ Proxy implementation name
3774 char *im0 = ir->implementationName;
3776 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3783 strcat(im1, "(YAZ Proxy)");
3784 ir->implementationName = im1;
3786 nmem_destroy (nmem);
3788 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3791 if (apdu->which == Z_APDU_searchResponse)
3793 Z_SearchResponse *sr = apdu->u.searchResponse;
3794 m_last_resultCount = *sr->resultCount;
3795 int status = *sr->searchStatus;
3796 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3800 if (sr->records && sr->records->which == Z_Records_DBOSD)
3802 m_cache.add(odr_decode(),
3803 sr->records->u.databaseOrSurDiagnostics, 1,
3808 if (apdu->which == Z_APDU_presentResponse)
3810 Z_PresentResponse *pr = apdu->u.presentResponse;
3814 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3815 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3816 sr->referenceId = pr->referenceId;
3817 *sr->resultCount = m_last_resultCount;
3818 sr->records = pr->records;
3819 sr->nextResultSetPosition = pr->nextResultSetPosition;
3820 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3824 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3826 m_cache.add(odr_decode(),
3827 pr->records->u.databaseOrSurDiagnostics,
3828 m_resultSetStartPoint, -1);
3829 m_resultSetStartPoint = 0;
3833 set_otherInformationString(apdu, yaz_oid_userinfo_cookie, 1, m_cookie);
3835 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3838 server->send_to_client(apdu);
3839 if (apdu->which == Z_APDU_close)
3842 server->recv_GDU_more(true);
3845 void Yaz_Proxy::low_socket_close()
3850 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3851 if (m_lo_fd[i] >= 0)
3852 ::close(m_lo_fd[i]);
3856 void Yaz_Proxy::low_socket_open()
3861 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3862 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3866 int Yaz_Proxy::server(const char *addr)
3868 int r = Z_Assoc::server(addr);
3871 yaz_log(YLOG_LOG, "%sStarted proxy "
3875 " on %s", m_session_str, addr);
3881 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3883 const char *base64_chars =
3884 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3885 int len = strlen(base64);
3889 for (int pos = 0; pos <= len; pos++)
3891 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3894 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3897 char ch = (char) (ch_ptr - base64_chars);
3901 buf[buf_pos] = ch << 2;
3904 buf[buf_pos++] += (ch & 0x30) >> 4;
3905 buf[buf_pos] = (ch & 0x0f) << 4;
3908 buf[buf_pos++] += (ch & 0x3c) >> 2;
3909 buf[buf_pos] = (ch & 0x03) << 6;
3912 buf[buf_pos++] += ch;
3919 buf[buf_pos] = '\0';
3925 * indent-tabs-mode: nil
3927 * vim: shiftwidth=4 tabstop=8 expandtab