1 /* $Id: yaz-proxy.cpp,v 1.73 2007-04-12 18:18:42 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 const int *oid = yaz_string_to_oid(yaz_oid_std(),
489 CLASS_USERINFO, OID_STR_COOKIE);
492 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
493 oi->which == Z_OtherInfo_characterInfo)
494 return oi->information.characterInfo;
498 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
500 Z_OtherInformationUnit *oi;
501 const int *oid = yaz_string_to_oid(yaz_oid_std(),
502 CLASS_USERINFO, OID_STR_COOKIE);
504 (oi = update_otherInformation(otherInfo, 0, oid, 1, 1)) &&
505 oi->which == Z_OtherInfo_characterInfo)
506 return oi->information.characterInfo;
509 const char *Yaz_Proxy::load_balance(const char **url)
511 int zurl_in_use[MAX_ZURL_PLEX];
512 int zurl_in_spare[MAX_ZURL_PLEX];
516 for (i = 0; i<MAX_ZURL_PLEX; i++)
519 zurl_in_spare[i] = 0;
521 for (c = m_parent->m_clientPool; c; c = c->m_next)
523 for (i = 0; url[i]; i++)
524 if (!strcmp(url[i], c->get_hostname()))
527 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
531 int min_use = 100000;
532 int spare_for_min = 0;
534 const char *ret_min = 0;
535 const char *ret_spare = 0;
536 for (i = 0; url[i]; i++)
538 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
539 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
540 if (min_use > zurl_in_use[i])
543 min_use = zurl_in_use[i];
544 spare_for_min = zurl_in_spare[i];
546 if (max_spare < zurl_in_spare[i])
549 max_spare = zurl_in_spare[i];
555 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
556 const char *proxy_host)
559 Yaz_Proxy *parent = m_parent;
560 Yaz_ProxyClient *c = m_client;
564 const char *url[MAX_ZURL_PLEX];
565 Yaz_ProxyConfig *cfg = check_reconfigure();
568 if (parent && parent->m_debug_mode)
570 // only to be enabled for debugging...
571 if (!strcmp(proxy_host, "stop"))
574 xfree(m_default_target);
575 m_default_target = xstrdup(proxy_host);
577 proxy_host = m_default_target;
578 int client_idletime = -1;
579 const char *cql2rpn_fname = 0;
580 const char *negotiation_charset = 0;
581 const char *negotiation_lang = 0;
582 const char *query_charset = 0;
583 const char *default_client_query_charset = 0;
584 url[0] = m_default_target;
589 cfg->get_target_info(proxy_host, url, &m_bw_max,
590 &m_pdu_max, &m_max_record_retrieve,
592 &m_target_idletime, &client_idletime,
593 &parent->m_max_clients,
594 &m_keepalive_limit_bw,
595 &m_keepalive_limit_pdu,
598 &negotiation_charset,
601 &default_client_query_charset);
603 if (client_idletime != -1)
605 m_client_idletime = client_idletime;
606 timeout(m_client_idletime);
609 // get those FILE descriptors available
610 m_parent->low_socket_close();
612 m_cql2rpn.set_pqf_file(cql2rpn_fname);
613 // reserve them again
614 m_parent->low_socket_open();
616 if (negotiation_charset || negotiation_lang || default_client_query_charset)
618 set_proxy_negotiation(negotiation_charset,
619 negotiation_lang, default_client_query_charset);
621 m_charset_converter->set_target_query_charset(query_charset);
624 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
627 // we don't handle multiplexing for cookie session, so we just
628 // pick the first one in this case (anonymous users will be able
629 // to use any backend)
630 if (cookie && *cookie)
631 m_proxyTarget = (char*) xstrdup(url[0]);
633 m_proxyTarget = (char*) xstrdup(load_balance(url));
635 if (cookie && *cookie)
636 { // search in sessions with a cookie
637 for (c = parent->m_clientPool; c; c = c->m_next)
640 assert (*c->m_prev == c);
641 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
642 !strcmp(m_proxyTarget, c->get_hostname()))
645 // The following handles "cancel"
646 // If connection is busy (waiting for PDU) and
647 // we have an initRequest we can safely do re-open
648 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
650 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
657 c->m_last_resultCount = 0;
658 c->m_sr_transform = 0;
660 c->m_resultSetStartPoint = 0;
661 c->m_target_idletime = m_target_idletime;
662 if (c->client(m_proxyTarget))
669 c->m_seqno = parent->m_seqno;
670 if (c->m_server && c->m_server != this)
671 c->m_server->m_client = 0;
674 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
679 else if (!c && apdu->which == Z_APDU_initRequest )
681 // anonymous sessions without cookie.
682 // if authentication is set it is NOT anonymous se we can't share them.
683 // If charset and lang negotiation is use it is NOT anonymous session too.
684 for (c = parent->m_clientPool; c; c = c->m_next)
687 assert(*c->m_prev == c);
688 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
689 && c->compare_idAuthentication(apdu)
690 && c->compare_charset(apdu)
691 && !strcmp(m_proxyTarget, c->get_hostname()))
694 yaz_log (YLOG_LOG, "%sREUSE %d %s",
695 m_session_str, parent->m_seqno, c->get_hostname());
697 c->m_seqno = parent->m_seqno;
698 assert(c->m_server == 0);
701 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
702 c->set_APDU_yazlog(1);
704 c->set_APDU_yazlog(0);
716 if (apdu->which != Z_APDU_initRequest)
718 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
721 // go through list of clients - and find the lowest/oldest one.
722 Yaz_ProxyClient *c_min = 0;
724 int no_of_clients = 0;
725 if (parent->m_clientPool)
726 yaz_log (YLOG_DEBUG, "Existing sessions");
727 for (c = parent->m_clientPool; c; c = c->m_next)
729 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
730 c->m_waiting, c->get_hostname(),
731 c->m_cookie ? c->m_cookie : "");
733 if (min_seq < 0 || c->m_seqno < min_seq)
735 min_seq = c->m_seqno;
739 if (no_of_clients >= parent->m_max_clients)
742 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
744 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
745 m_session_str, parent->m_max_clients, c->m_seqno);
746 if (c->m_server && c->m_server != this)
747 c->m_server->dec_ref();
751 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
752 m_session_str, parent->m_max_clients,
753 c->m_seqno, parent->m_seqno, c->get_hostname());
757 c->m_cookie = xstrdup(cookie);
758 c->m_seqno = parent->m_seqno;
759 if (c->m_server && c->m_server != this)
761 c->m_server->m_client = 0;
762 c->m_server->dec_ref();
765 c->m_target_idletime = m_target_idletime;
766 c->timeout(m_target_idletime);
768 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
769 c->set_APDU_yazlog(1);
771 c->set_APDU_yazlog(0);
778 yaz_log (YLOG_LOG, "%sNEW %d %s",
779 m_session_str, parent->m_seqno, m_proxyTarget);
780 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
781 c->m_next = parent->m_clientPool;
783 c->m_next->m_prev = &c->m_next;
784 parent->m_clientPool = c;
785 c->m_prev = &parent->m_clientPool;
791 c->m_cookie = xstrdup(cookie);
793 c->m_seqno = parent->m_seqno;
795 c->m_last_resultCount = 0;
798 c->m_sr_transform = 0;
800 c->m_resultSetStartPoint = 0;
802 if (c->client(m_proxyTarget))
807 c->m_target_idletime = m_target_idletime;
810 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
811 c->set_APDU_yazlog(1);
813 c->set_APDU_yazlog(0);
815 c->set_idAuthentication(apdu);
817 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
821 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
824 for (i = 0; i<num; i++)
826 Z_DefaultDiagFormat *r;
827 Z_DiagRec *p = pp[i];
828 if (p->which != Z_DiagRec_defaultFormat)
830 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
834 r = p->u.defaultFormat;
837 case Z_DefaultDiagFormat_v2Addinfo:
838 yaz_log(YLOG_LOG, "%sError %d %s:%s",
840 *r->condition, diagbib1_str(*r->condition),
843 case Z_DefaultDiagFormat_v3Addinfo:
844 yaz_log(YLOG_LOG, "%sError %d %s:%s",
846 *r->condition, diagbib1_str(*r->condition),
853 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
855 if (!m_stylesheet_xsp || p->num_records <= 0)
857 return 0; /* no XSLT to be done ... */
860 m_stylesheet_offset = 0;
861 m_stylesheet_nprl = p;
862 m_stylesheet_apdu = apdu;
863 m_timeout_mode = timeout_xsl;
869 void Yaz_Proxy::convert_xsl_delay()
872 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
873 if (npr->which == Z_NamePlusRecord_databaseRecord)
875 Z_External *r = npr->u.databaseRecord;
876 if (r->which == Z_External_octet)
879 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
881 xmlDocPtr res, doc = xmlParseMemory(
882 (char*) r->u.octet_aligned->buf,
883 r->u.octet_aligned->len);
886 yaz_log(YLOG_LOG, "%sXSLT convert %d",
887 m_session_str, m_stylesheet_offset);
888 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
895 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
896 const int *oid = yaz_string_to_oid(yaz_oid_std(),
897 CLASS_RECSYN, OID_STR_XML);
898 m_stylesheet_nprl->records[m_stylesheet_offset]->
900 z_ext_record_oid(odr_encode(), oid,
901 (char*) out_buf, out_len);
910 m_stylesheet_offset++;
911 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
913 m_timeout_mode = timeout_normal;
914 m_stylesheet_nprl = 0;
916 if (m_stylesheet_xsp)
917 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
919 m_stylesheet_xsp = 0;
920 timeout(m_client_idletime);
921 send_PDU_convert(m_stylesheet_apdu);
927 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
929 if (m_frontend_type[0] != -1)
932 for (i = 0; i < p->num_records; i++)
934 Z_NamePlusRecord *npr = p->records[i];
935 if (npr->which == Z_NamePlusRecord_databaseRecord)
937 Z_External *r = npr->u.databaseRecord;
938 if (r->which == Z_External_octet)
941 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
943 if (!m_usemarcon->m_stage1)
945 m_usemarcon->m_stage1 = new CDetails();
947 m_usemarcon->m_stage1->SetIniFileName(m_usemarcon_ini_stage1);
948 m_usemarcon->m_stage1->SetMarcRecord((char*) r->u.octet_aligned->buf, r->u.octet_aligned->len);
949 int res = m_usemarcon->m_stage1->Start();
954 m_usemarcon->m_stage1->GetMarcRecord(converted, convlen);
955 if (m_usemarcon_ini_stage2 && *m_usemarcon_ini_stage2)
957 if (!m_usemarcon->m_stage2)
959 m_usemarcon->m_stage2 = new CDetails();
961 m_usemarcon->m_stage2->SetIniFileName(m_usemarcon_ini_stage2);
962 m_usemarcon->m_stage2->SetMarcRecord(converted, convlen);
963 res = m_usemarcon->m_stage2->Start();
967 m_usemarcon->m_stage2->GetMarcRecord(converted, convlen);
971 yaz_log(YLOG_LOG, "%sUSEMARCON stage 2 error %d", m_session_str, res);
974 npr->u.databaseRecord =
975 z_ext_record_oid(odr_encode(),
983 yaz_log(YLOG_LOG, "%sUSEMARCON stage 1 error %d", m_session_str, res);
989 npr->u.databaseRecord =
990 z_ext_record_oid(odr_encode(),
992 (char*) r->u.octet_aligned->buf,
993 r->u.octet_aligned->len);
1000 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1001 const char *backend_charset)
1003 int sel = m_charset_converter->get_client_charset_selected();
1004 const char *client_record_charset =
1005 m_charset_converter->get_client_query_charset();
1006 if (sel && backend_charset && client_record_charset &&
1007 strcmp(backend_charset, client_record_charset))
1010 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1012 yaz_marc_t mt = yaz_marc_create();
1013 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1014 yaz_marc_iconv(mt, cd);
1015 for (i = 0; i < p->num_records; i++)
1017 Z_NamePlusRecord *npr = p->records[i];
1018 if (npr->which == Z_NamePlusRecord_databaseRecord)
1020 Z_External *r = npr->u.databaseRecord;
1021 const int *oid = r->direct_reference;
1025 char oid_name_str[OID_STR_MAX];
1027 const char *oid_name = yaz_oid_to_string_buf(
1028 oid, &oclass, oid_name_str);
1030 if (oid_name && !strcmp(oid_name, OID_STR_SUTRS))
1032 WRBUF w = wrbuf_alloc();
1034 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1035 r->u.octet_aligned->len);
1036 npr->u.databaseRecord =
1037 z_ext_record_oid(odr_encode(), oid, wrbuf_buf(w),
1041 else if (oid_name && !strcmp(oid_name, OID_STR_XML))
1045 else if (r->which == Z_External_octet)
1049 if (yaz_marc_decode_buf(mt,
1050 (char*) r->u.octet_aligned->buf,
1051 r->u.octet_aligned->len,
1054 npr->u.databaseRecord =
1055 z_ext_record_oid(odr_encode(), oid, result, rlen);
1056 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1063 yaz_iconv_close(cd);
1064 yaz_marc_destroy(mt);
1068 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1069 const char *backend_charset)
1072 if (!backend_charset)
1073 backend_charset = "MARC-8";
1074 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1075 yaz_marc_t mt = yaz_marc_create();
1076 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1077 yaz_marc_iconv(mt, cd);
1078 for (i = 0; i < p->num_records; i++)
1080 Z_NamePlusRecord *npr = p->records[i];
1081 if (npr->which == Z_NamePlusRecord_databaseRecord)
1083 const int *xml_oid = yaz_string_to_oid(yaz_oid_std(),
1086 Z_External *r = npr->u.databaseRecord;
1087 if (r->which == Z_External_OPAC)
1089 WRBUF w = wrbuf_alloc();
1091 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1092 npr->u.databaseRecord = z_ext_record_oid(
1093 odr_encode(), xml_oid,
1094 wrbuf_buf(w), wrbuf_len(w));
1097 else if (r->which == Z_External_octet)
1101 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1102 r->u.octet_aligned->len,
1105 npr->u.databaseRecord =
1106 z_ext_record_oid(odr_encode(), xml_oid, result, rlen);
1112 yaz_iconv_close(cd);
1113 yaz_marc_destroy(mt);
1116 void Yaz_Proxy::logtime()
1118 #if HAVE_GETTIMEOFDAY
1119 struct timeval *tv = (struct timeval*) m_time_tv;
1123 gettimeofday(&tv1, 0);
1124 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1125 (tv1.tv_usec - tv->tv_usec);
1127 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1128 diff/1000000, (diff/1000)%1000);
1135 int Yaz_Proxy::send_http_response(int code)
1137 ODR o = odr_encode();
1138 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1139 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1141 hres->version = odr_strdup(o, m_http_version);
1142 if (m_http_keepalive)
1143 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1147 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate",
1148 "Basic realm=\"YAZ Proxy\"");
1151 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1153 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1157 int r = send_GDU(gdu, &len);
1158 m_bytes_sent += len;
1159 m_bw_stat.add_bytes(len);
1162 recv_GDU_more(true);
1167 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1169 ODR o = odr_encode();
1170 const char *ctype = "text/xml";
1171 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1172 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1174 hres->version = odr_strdup(o, m_http_version);
1175 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1176 if (m_http_keepalive)
1177 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1180 if (http_code == 401)
1181 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1183 static Z_SOAP_Handler soap_handlers[2] = {
1185 {"http://www.loc.gov/zing/srw/", 0,
1186 (Z_SOAP_fun) yaz_srw_codec},
1191 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1192 soap_package->which = Z_SOAP_generic;
1193 soap_package->u.generic =
1194 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1195 soap_package->u.generic->no = 0;
1196 soap_package->u.generic->ns = soap_handlers[0].ns;
1197 soap_package->u.generic->p = (void *) srw_pdu;
1198 soap_package->ns = m_soap_ns;
1199 z_soap_codec_enc_xsl(o, &soap_package,
1200 &hres->content_buf, &hres->content_len,
1201 soap_handlers, 0, m_s2z_stylesheet);
1202 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1204 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1208 int r = send_GDU(gdu, &len);
1209 m_bytes_sent += len;
1210 m_bw_stat.add_bytes(len);
1213 recv_GDU_more(true);
1218 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1220 ODR o = odr_encode();
1221 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1222 odr_malloc(o, sizeof(*diagnostic));
1223 int num_diagnostic = 1;
1224 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1225 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1228 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1229 Z_DefaultDiagFormat *ddf)
1231 int bib1_code = *ddf->condition;
1232 if (bib1_code == 109)
1234 srw_res->num_diagnostics = 1;
1235 srw_res->diagnostics = (Z_SRW_diagnostic *)
1236 odr_malloc(o, sizeof(*srw_res->diagnostics));
1237 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1238 yaz_diag_bib1_to_srw(*ddf->condition),
1243 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1245 ODR o = odr_encode();
1246 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1247 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1249 srw_res->numberOfRecords = odr_intdup (o, hits);
1250 if (records && records->which == Z_Records_DBOSD)
1252 srw_res->num_records =
1253 records->u.databaseOrSurDiagnostics->num_records;
1255 srw_res->records = (Z_SRW_record *)
1256 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1257 for (i = 0; i < srw_res->num_records; i++)
1259 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1260 if (npr->which != Z_NamePlusRecord_databaseRecord)
1262 srw_res->records[i].recordSchema = "diagnostic";
1263 srw_res->records[i].recordPacking = m_s2z_packing;
1264 srw_res->records[i].recordData_buf = "67";
1265 srw_res->records[i].recordData_len = 2;
1266 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1269 Z_External *r = npr->u.databaseRecord;
1271 const int *xml_oid = yaz_string_to_oid(
1272 yaz_oid_std(), CLASS_RECSYN, OID_STR_XML);
1273 if (r->which == Z_External_octet
1274 && !oid_oidcmp(r->direct_reference, xml_oid))
1276 srw_res->records[i].recordSchema = m_schema;
1277 srw_res->records[i].recordPacking = m_s2z_packing;
1278 srw_res->records[i].recordData_buf = (char*)
1279 r->u.octet_aligned->buf;
1280 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1281 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1285 srw_res->records[i].recordSchema = "diagnostic";
1286 srw_res->records[i].recordPacking = m_s2z_packing;
1287 srw_res->records[i].recordData_buf = "67";
1288 srw_res->records[i].recordData_len = 2;
1289 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1293 if (records && records->which == Z_Records_NSD)
1296 http_code = z_to_srw_diag(odr_encode(), srw_res,
1297 records->u.nonSurrogateDiagnostic);
1299 return send_http_response(http_code);
1301 return send_srw_response(srw_pdu);
1305 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1306 int num_diagnostics, int http_code /* = 200 */)
1308 ODR o = odr_encode();
1309 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1310 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1312 srw_res->num_diagnostics = num_diagnostics;
1313 srw_res->diagnostics = diagnostics;
1314 return send_srw_response(srw_pdu, http_code);
1317 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1318 int num_diagnostics)
1320 Yaz_ProxyConfig *cfg = check_reconfigure();
1324 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1325 m_s2z_database, &len);
1328 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1329 Z_SRW_explainResponse *er = res->u.explain_response;
1331 er->record.recordData_buf = b;
1332 er->record.recordData_len = len;
1333 er->record.recordPacking = m_s2z_packing;
1334 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1336 er->diagnostics = diagnostics;
1337 er->num_diagnostics = num_diagnostics;
1338 return send_srw_response(res);
1341 return send_http_response(404);
1344 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1348 if (apdu->which == Z_APDU_initResponse)
1350 Z_InitResponse *res = apdu->u.initResponse;
1351 if (*res->result == 0)
1353 send_to_srw_client_error(3, 0);
1355 else if (!m_s2z_search_apdu)
1357 send_srw_explain_response(0, 0);
1361 handle_incoming_Z_PDU(m_s2z_search_apdu);
1364 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1366 m_s2z_search_apdu = 0;
1367 Z_SearchResponse *res = apdu->u.searchResponse;
1368 m_s2z_hit_count = *res->resultCount;
1369 if (res->records && res->records->which == Z_Records_NSD)
1371 send_to_srw_client_ok(0, res->records, 1);
1373 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1376 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1378 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1380 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1382 *pr->numberOfRecordsRequested =
1383 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1385 handle_incoming_Z_PDU(m_s2z_present_apdu);
1389 m_s2z_present_apdu = 0;
1390 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1393 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1396 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1398 m_s2z_present_apdu = 0;
1399 Z_PresentResponse *res = apdu->u.presentResponse;
1400 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1406 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1407 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1409 int r = send_Z_PDU(apdu, &len);
1410 m_bytes_sent += len;
1411 m_bw_stat.add_bytes(len);
1418 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1420 int kill_session = 0;
1421 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1424 *new_id = m_referenceId;
1426 if (apdu->which == Z_APDU_searchResponse)
1428 Z_SearchResponse *sr = apdu->u.searchResponse;
1429 Z_Records *p = sr->records;
1430 if (p && p->which == Z_Records_NSD)
1432 Z_DiagRec dr, *dr_p = &dr;
1433 dr.which = Z_DiagRec_defaultFormat;
1434 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1436 *sr->searchStatus = 0;
1437 display_diagrecs(&dr_p, 1);
1441 if (p && p->which == Z_Records_DBOSD)
1445 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1448 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1449 if (m_marcxml_mode == marcxml)
1450 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1453 convert_records_charset(p->u.databaseOrSurDiagnostics,
1455 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1459 if (sr->resultCount)
1461 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1463 if (*sr->resultCount < 0)
1465 m_flag_invalid_session = 1;
1468 *sr->searchStatus = 0;
1470 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1471 *sr->resultCount = 0;
1476 else if (apdu->which == Z_APDU_presentResponse)
1478 Z_PresentResponse *sr = apdu->u.presentResponse;
1479 Z_Records *p = sr->records;
1480 if (p && p->which == Z_Records_NSD)
1482 Z_DiagRec dr, *dr_p = &dr;
1483 dr.which = Z_DiagRec_defaultFormat;
1484 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1485 if (*sr->presentStatus == Z_PresentStatus_success)
1486 *sr->presentStatus = Z_PresentStatus_failure;
1487 display_diagrecs(&dr_p, 1);
1489 if (p && p->which == Z_Records_DBOSD)
1493 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1496 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1497 if (m_marcxml_mode == marcxml)
1498 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1501 convert_records_charset(p->u.databaseOrSurDiagnostics,
1503 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1507 else if (apdu->which == Z_APDU_initResponse)
1509 //Get and check negotiation record
1510 //from init response.
1511 handle_charset_lang_negotiation(apdu);
1513 if (m_initRequest_options)
1516 (Odr_bitmask *)odr_malloc(odr_encode(),
1517 sizeof(Odr_bitmask));
1518 ODR_MASK_ZERO(nopt);
1521 for (i = 0; i<24; i++)
1522 if (ODR_MASK_GET(m_initRequest_options, i) &&
1523 ODR_MASK_GET(apdu->u.initResponse->options, i))
1524 ODR_MASK_SET(nopt, i);
1525 apdu->u.initResponse->options = nopt;
1527 if (m_initRequest_version)
1529 Z_ProtocolVersion *nopt =
1530 (Odr_bitmask *)odr_malloc(odr_encode(),
1531 sizeof(Odr_bitmask));
1532 ODR_MASK_ZERO(nopt);
1535 for (i = 0; i<8; i++)
1536 if (ODR_MASK_GET(m_initRequest_version, i) &&
1537 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1538 ODR_MASK_SET(nopt, i);
1539 apdu->u.initResponse->protocolVersion = nopt;
1541 apdu->u.initResponse->preferredMessageSize =
1542 odr_intdup(odr_encode(),
1543 m_client->m_initResponse_preferredMessageSize >
1544 m_initRequest_preferredMessageSize ?
1545 m_initRequest_preferredMessageSize :
1546 m_client->m_initResponse_preferredMessageSize);
1547 apdu->u.initResponse->maximumRecordSize =
1548 odr_intdup(odr_encode(),
1549 m_client->m_initResponse_maximumRecordSize >
1550 m_initRequest_maximumRecordSize ?
1551 m_initRequest_maximumRecordSize :
1552 m_client->m_initResponse_maximumRecordSize);
1555 int r = send_PDU_convert(apdu);
1562 m_parent->pre_init();
1567 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1569 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1571 odr_reset(m_idAuthentication_odr);
1572 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1573 m_idAuthentication_ber_buf =
1574 odr_getbuf(m_idAuthentication_odr,
1575 &m_idAuthentication_ber_size, 0);
1578 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1583 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1585 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1586 ODR odr = odr_createmem(ODR_ENCODE);
1588 z_IdAuthentication(odr, &t, 1, 0);
1590 char *buf = odr_getbuf(odr, &sz, 0);
1591 if (buf && m_idAuthentication_ber_buf
1592 && sz == m_idAuthentication_ber_size
1593 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1599 if (!buf && !m_idAuthentication_ber_buf)
1604 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1607 const char *apdu_name_tmp = apdu_name(apdu);
1608 int r = send_Z_PDU(apdu, &len);
1609 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1610 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1612 apdu_name_tmp, get_hostname(), len);
1613 m_bytes_sent += len;
1617 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1619 if (apdu->which == Z_APDU_presentRequest)
1621 Z_PresentRequest *pr = apdu->u.presentRequest;
1622 int toget = *pr->numberOfRecordsRequested;
1623 int start = *pr->resultSetStartPoint;
1625 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1626 pr->resultSetId, start, toget);
1628 if (*m_parent->m_optimize == '0')
1631 if (!m_client->m_last_resultSetId)
1633 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1634 new_apdu->u.presentResponse->records =
1635 create_nonSurrogateDiagnostics(
1637 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1639 send_to_client(new_apdu);
1642 if (start < 1 || toget < 0)
1644 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1645 new_apdu->u.presentResponse->records =
1646 create_nonSurrogateDiagnostics(
1648 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1650 send_to_client(new_apdu);
1653 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1655 if (start+toget-1 > m_client->m_last_resultCount)
1657 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1658 new_apdu->u.presentResponse->records =
1659 create_nonSurrogateDiagnostics(
1661 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1663 send_to_client(new_apdu);
1666 Z_NamePlusRecordList *npr;
1668 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1669 m_session_str, start, toget, yaz_z3950oid_to_str(
1670 pr->preferredRecordSyntax, &oclass));
1672 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1673 pr->preferredRecordSyntax,
1674 pr->recordComposition))
1676 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1678 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1679 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1681 new_apdu->u.presentResponse->numberOfRecordsReturned
1682 = odr_intdup(odr_encode(), toget);
1684 new_apdu->u.presentResponse->records = (Z_Records*)
1685 odr_malloc(odr_encode(), sizeof(Z_Records));
1686 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1687 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1688 new_apdu->u.presentResponse->nextResultSetPosition =
1689 odr_intdup(odr_encode(), start+toget);
1691 send_to_client(new_apdu);
1697 if (apdu->which != Z_APDU_searchRequest)
1699 Z_SearchRequest *sr = apdu->u.searchRequest;
1700 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1701 Yaz_Z_Databases this_databases;
1703 this_databases.set(sr->num_databaseNames, (const char **)
1706 this_query->set_Z_Query(sr->query);
1708 // Check for non-negative piggyback params.
1709 if (*sr->smallSetUpperBound < 0
1710 || *sr->largeSetLowerBound < 0
1711 || *sr->mediumSetPresentNumber < 0)
1713 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1714 // Not a present request.. But can't find better diagnostic
1715 new_apdu->u.searchResponse->records =
1716 create_nonSurrogateDiagnostics(
1718 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1719 send_to_client(new_apdu);
1723 char query_str[4096];
1724 this_query->print(query_str, sizeof(query_str)-1);
1725 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1727 if (*m_parent->m_optimize != '0' &&
1728 m_client->m_last_ok && m_client->m_last_query &&
1729 m_client->m_last_query->match(this_query) &&
1730 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1731 m_client->m_last_databases.match(this_databases))
1734 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1735 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1737 Z_NamePlusRecordList *npr;
1738 int toget = *sr->mediumSetPresentNumber;
1739 Z_RecordComposition *comp = 0;
1741 if (toget > m_client->m_last_resultCount)
1742 toget = m_client->m_last_resultCount;
1744 if (sr->mediumSetElementSetNames)
1746 comp = (Z_RecordComposition *)
1747 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1748 comp->which = Z_RecordComp_simple;
1749 comp->u.simple = sr->mediumSetElementSetNames;
1752 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1753 sr->preferredRecordSyntax, comp))
1755 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1757 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1758 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1759 new_apdu->u.searchResponse->resultCount =
1760 &m_client->m_last_resultCount;
1762 new_apdu->u.searchResponse->numberOfRecordsReturned
1763 = odr_intdup(odr_encode(), toget);
1765 new_apdu->u.searchResponse->presentStatus =
1766 odr_intdup(odr_encode(), Z_PresentStatus_success);
1767 new_apdu->u.searchResponse->records = (Z_Records*)
1768 odr_malloc(odr_encode(), sizeof(Z_Records));
1769 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1770 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1771 new_apdu->u.searchResponse->nextResultSetPosition =
1772 odr_intdup(odr_encode(), toget+1);
1773 send_to_client(new_apdu);
1779 // send present request (medium size)
1780 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1783 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1784 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1785 pr->referenceId = sr->referenceId;
1786 pr->resultSetId = sr->resultSetName;
1787 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1788 *pr->numberOfRecordsRequested = toget;
1789 pr->recordComposition = comp;
1790 m_client->m_sr_transform = 1;
1794 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1795 m_client->m_last_resultCount <= 0)
1797 // large set. Return pseudo-search response immediately
1798 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1800 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1801 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1802 new_apdu->u.searchResponse->resultCount =
1803 &m_client->m_last_resultCount;
1804 send_to_client(new_apdu);
1809 Z_NamePlusRecordList *npr;
1810 int toget = m_client->m_last_resultCount;
1811 Z_RecordComposition *comp = 0;
1813 // send a present request (small set)
1815 if (sr->smallSetElementSetNames)
1817 comp = (Z_RecordComposition *)
1818 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1819 comp->which = Z_RecordComp_simple;
1820 comp->u.simple = sr->smallSetElementSetNames;
1823 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1824 sr->preferredRecordSyntax, comp))
1826 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1828 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1829 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1830 new_apdu->u.searchResponse->resultCount =
1831 &m_client->m_last_resultCount;
1833 new_apdu->u.searchResponse->numberOfRecordsReturned
1834 = odr_intdup(odr_encode(), toget);
1836 new_apdu->u.searchResponse->presentStatus =
1837 odr_intdup(odr_encode(), Z_PresentStatus_success);
1838 new_apdu->u.searchResponse->records = (Z_Records*)
1839 odr_malloc(odr_encode(), sizeof(Z_Records));
1840 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1841 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1842 new_apdu->u.searchResponse->nextResultSetPosition =
1843 odr_intdup(odr_encode(), toget+1);
1844 send_to_client(new_apdu);
1849 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1851 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1852 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1853 pr->referenceId = sr->referenceId;
1854 pr->resultSetId = sr->resultSetName;
1855 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1856 *pr->numberOfRecordsRequested = toget;
1857 pr->recordComposition = comp;
1858 m_client->m_sr_transform = 1;
1863 else // query doesn't match
1865 delete m_client->m_last_query;
1866 m_client->m_last_query = this_query;
1867 m_client->m_last_ok = 0;
1868 m_client->m_cache.clear();
1869 m_client->m_resultSetStartPoint = 0;
1871 xfree (m_client->m_last_resultSetId);
1872 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1874 m_client->m_last_databases.set(sr->num_databaseNames,
1875 (const char **) sr->databaseNames);
1881 void Yaz_Proxy::inc_request_no()
1884 char *cp = m_session_str + strlen(m_session_str)-1;
1887 while (*cp && *cp != ' ')
1890 sprintf(cp+1, "%d ", m_request_no);
1893 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1897 m_bytes_recv += len;
1899 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1900 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1901 m_session_str, gdu_name(apdu), len);
1904 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1905 if (apdu->which == Z_GDU_Z3950
1906 && apdu->u.z3950->which == Z_APDU_searchRequest)
1908 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1909 if (req->query && req->query->which == Z_Query_type_1)
1911 Z_RPNQuery *rpnquery = req->query->u.type_1;
1912 if (rpnquery->attributeSetId)
1914 rpnquery->attributeSetId[0] = -2;
1915 rpnquery->attributeSetId[1] = -1;
1916 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1922 #if HAVE_GETTIMEOFDAY
1923 gettimeofday((struct timeval *) m_time_tv, 0);
1925 m_bw_stat.add_bytes(len);
1926 m_pdu_stat.add_bytes(1);
1928 GDU *gdu = new GDU(apdu);
1930 if (gdu->get() == 0)
1933 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1938 m_in_queue.enqueue(gdu);
1939 recv_GDU_more(false);
1942 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1944 if (z_gdu->which == Z_GDU_HTTP_Request)
1946 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1947 const char *x_forwarded_for =
1948 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1949 if (x_forwarded_for)
1952 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1953 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1955 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1957 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1958 sprintf(m_session_str, "%ld:%d %.80s %d ",
1959 (long) time(0), m_session_no, m_peername, m_request_no);
1961 sprintf(m_session_str, "%ld:%d %d ",
1962 (long) time(0), m_session_no, m_request_no);
1967 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1970 m_parent->m_connect.cleanup(false);
1971 m_parent->m_connect.add_connect(m_peername);
1973 int connect_total = m_parent->m_connect.get_total(m_peername);
1974 int max_connect = m_parent->m_max_connect;
1976 if (max_connect && connect_total > max_connect)
1978 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1979 m_session_str, connect_total, max_connect);
1984 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1987 int limit_connect = m_parent->m_limit_connect;
1989 reduce = connect_total / limit_connect;
1994 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1996 HTTP_Forwarded(gdu->get());
2000 if (m_request_no == 1)
2004 connect_stat(block, reduce);
2008 m_timeout_mode = timeout_busy;
2014 int bw_total = m_bw_stat.get_total();
2015 int pdu_total = m_pdu_stat.get_total();
2016 int search_total = m_search_stat.get_total();
2018 assert(m_timeout_mode == timeout_busy);
2019 assert(m_timeout_gdu == 0);
2022 reduce += search_total / m_search_max;
2024 reduce += (bw_total/m_bw_max);
2027 if (pdu_total > m_pdu_max)
2029 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2030 reduce = (reduce > nreduce) ? reduce : nreduce;
2036 /* uncomment to force a big reduce */
2037 m_timeout_mode = timeout_reduce;
2038 m_timeout_gdu = gdu;
2039 timeout(3); // call us reduce seconds later
2044 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2045 m_session_str, reduce, bw_total, pdu_total, search_total,
2046 m_bw_max, m_pdu_max, m_search_max);
2048 m_timeout_mode = timeout_reduce;
2049 m_timeout_gdu = gdu;
2050 timeout(reduce); // call us reduce seconds later
2053 recv_GDU_normal(gdu);
2056 void Yaz_Proxy::recv_GDU_more(bool normal)
2059 if (normal && m_timeout_mode == timeout_busy)
2060 m_timeout_mode = timeout_normal;
2061 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2063 m_timeout_mode = timeout_busy;
2071 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2074 gdu->move_away_gdu(odr_decode(), &apdu);
2077 if (apdu->which == Z_GDU_Z3950)
2078 handle_incoming_Z_PDU(apdu->u.z3950);
2079 else if (apdu->which == Z_GDU_HTTP_Request)
2080 handle_incoming_HTTP(apdu->u.HTTP_Request);
2083 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2085 if (m_max_record_retrieve)
2087 if (apdu->which == Z_APDU_presentRequest)
2089 Z_PresentRequest *pr = apdu->u.presentRequest;
2090 if (pr->numberOfRecordsRequested &&
2091 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2092 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2097 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2099 if (apdu->which == Z_APDU_initRequest)
2101 if (m_initRequest_options &&
2102 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2103 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2105 // There is no negotiation proposal from
2106 // client's side. OK. The proxy negotiation
2108 Z_InitRequest *initRequest = apdu->u.initRequest;
2109 Z_OtherInformation **otherInfo;
2110 Z_OtherInformationUnit *oi;
2111 get_otherInfoAPDU(apdu, &otherInfo);
2112 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2115 ODR_MASK_SET(initRequest->options,
2116 Z_Options_negotiationModel);
2117 oi->which = Z_OtherInfo_externallyDefinedInfo;
2118 oi->information.externallyDefinedInfo =
2119 yaz_set_proposal_charneg(odr_encode(),
2120 (const char**)&m_proxy_negotiation_charset,
2121 m_proxy_negotiation_charset ? 1:0,
2122 (const char**)&m_proxy_negotiation_lang,
2123 m_proxy_negotiation_lang ? 1:0,
2127 else if (m_initRequest_options &&
2128 ODR_MASK_GET(m_initRequest_options,
2129 Z_Options_negotiationModel) &&
2130 m_charset_converter->get_target_query_charset())
2132 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2134 m_charset_converter->get_target_query_charset());
2135 Z_InitRequest *initRequest = apdu->u.initRequest;
2136 Z_CharSetandLanguageNegotiation *negotiation =
2137 yaz_get_charneg_record (initRequest->otherInfo);
2139 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2141 NMEM nmem = nmem_create();
2142 char **charsets = 0;
2143 int num_charsets = 0;
2147 yaz_get_proposal_charneg (nmem, negotiation,
2148 &charsets, &num_charsets,
2149 &langs, &num_langs, &selected);
2151 for (i = 0; i<num_charsets; i++)
2152 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2154 for (i = 0; i<num_langs; i++)
2155 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2158 const char *t_charset =
2159 m_charset_converter->get_target_query_charset();
2160 // sweep through charsets and pick the first supported
2162 for (i = 0; i<num_charsets; i++)
2164 const char *c_charset = charsets[i];
2165 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2168 if (i != num_charsets)
2170 // got one .. set up ODR for reverse direction
2171 const char *c_charset = charsets[i];
2172 odr_set_charset(odr_encode(), c_charset, t_charset);
2173 m_charset_converter->set_client_query_charset(c_charset);
2174 m_charset_converter->set_client_charset_selected(selected);
2177 ODR_MASK_CLEAR(m_initRequest_options,
2178 Z_Options_negotiationModel);
2179 yaz_del_charneg_record(&initRequest->otherInfo);
2183 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2187 else if (m_charset_converter->get_target_query_charset() &&
2188 m_proxy_negotiation_default_charset)
2190 m_charset_converter->
2191 set_client_query_charset(m_proxy_negotiation_default_charset);
2194 else if (apdu->which == Z_APDU_initResponse)
2196 Z_InitResponse *initResponse = apdu->u.initResponse;
2197 Z_OtherInformation **otherInfo;
2198 get_otherInfoAPDU(apdu, &otherInfo);
2200 Z_CharSetandLanguageNegotiation *charneg = 0;
2202 if (otherInfo && *otherInfo &&
2203 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2204 && (charneg = yaz_get_charneg_record(*otherInfo)))
2210 yaz_get_response_charneg(m_referenceId_mem, charneg,
2211 &charset, &lang, &selected);
2213 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2214 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2216 if (m_initRequest_options &&
2217 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2219 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2222 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2224 // negotiation-charset, negotiation-lang
2225 // elements of config file in use.
2227 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2230 // clear negotiation option.
2231 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2233 // Delete negotiation (charneg-3) entry.
2234 yaz_del_charneg_record(otherInfo);
2239 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2241 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2244 else if (m_charset_converter->get_client_query_charset())
2246 Z_OtherInformation **otherInfo;
2247 Z_OtherInformationUnit *oi;
2248 get_otherInfoAPDU(apdu, &otherInfo);
2249 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2252 ODR_MASK_SET(initResponse->options,
2253 Z_Options_negotiationModel);
2254 if (m_initRequest_options)
2255 ODR_MASK_SET(m_initRequest_options,
2256 Z_Options_negotiationModel);
2258 oi->which = Z_OtherInfo_externallyDefinedInfo;
2259 oi->information.externallyDefinedInfo =
2260 yaz_set_response_charneg(
2262 m_charset_converter->get_client_query_charset(),
2264 m_charset_converter->get_client_charset_selected());
2271 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2273 const char *addinfo)
2275 Z_Records *rec = (Z_Records *)
2276 odr_malloc (odr, sizeof(*rec));
2278 odr_malloc (odr, sizeof(*err));
2279 Z_DiagRec *drec = (Z_DiagRec *)
2280 odr_malloc (odr, sizeof(*drec));
2281 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2282 odr_malloc (odr, sizeof(*dr));
2284 rec->which = Z_Records_NSD;
2285 rec->u.nonSurrogateDiagnostic = dr;
2286 dr->diagnosticSetId =
2287 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_DIAGSET, OID_STR_BIB1, odr);
2288 dr->condition = err;
2289 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2290 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2294 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2296 if (apdu->which == Z_APDU_searchRequest &&
2297 apdu->u.searchRequest->query &&
2298 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2299 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2301 Z_RPNQuery *rpnquery = 0;
2302 Z_SearchRequest *sr = apdu->u.searchRequest;
2305 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2306 sr->query->u.type_104->u.cql);
2308 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2309 &rpnquery, odr_encode(),
2312 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2315 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2316 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2318 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2319 new_apdu->u.searchResponse->records =
2320 create_nonSurrogateDiagnostics(odr_encode(),
2321 yaz_diag_srw_to_bib1(r),
2323 *new_apdu->u.searchResponse->searchStatus = 0;
2325 send_to_client(new_apdu);
2331 sr->query->which = Z_Query_type_1;
2332 sr->query->u.type_1 = rpnquery;
2339 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2341 if (apdu->which == Z_APDU_searchRequest &&
2342 apdu->u.searchRequest->query)
2344 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2345 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2348 m_charset_converter->set_client_query_charset("UTF-8");
2349 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2350 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2357 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2359 if (apdu->which == Z_APDU_searchRequest)
2361 Z_SearchRequest *sr = apdu->u.searchRequest;
2365 Yaz_ProxyConfig *cfg = check_reconfigure();
2367 err = cfg->check_query(odr_encode(), m_default_target,
2368 sr->query, &addinfo);
2371 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2373 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2374 new_apdu->u.searchResponse->records =
2375 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2376 *new_apdu->u.searchResponse->searchStatus = 0;
2378 send_to_client(new_apdu);
2386 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2388 if (apdu->which != Z_APDU_initRequest)
2389 return 1; // pass if no init request
2390 Z_InitRequest *req = apdu->u.initRequest;
2392 Yaz_ProxyConfig *cfg = check_reconfigure();
2394 return 1; // pass if no config
2397 if (req->idAuthentication == 0)
2399 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2402 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2404 ret = cfg->client_authentication(
2406 req->idAuthentication->u.idPass->userId,
2407 req->idAuthentication->u.idPass->groupId,
2408 req->idAuthentication->u.idPass->password,
2411 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2413 char user[64], pass[64];
2416 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2417 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2421 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2426 int Yaz_Proxy::handle_global_authentication(Z_APDU *apdu)
2428 if (apdu->which != Z_APDU_initRequest)
2429 return 1; // pass if no init request
2430 Z_InitRequest *req = apdu->u.initRequest;
2432 Yaz_ProxyConfig *cfg = check_reconfigure();
2434 return 1; // pass if no config
2437 if (req->idAuthentication == 0)
2439 ret = cfg->global_client_authentication(0, 0, 0,
2442 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2444 ret = cfg->global_client_authentication(
2445 req->idAuthentication->u.idPass->userId,
2446 req->idAuthentication->u.idPass->groupId,
2447 req->idAuthentication->u.idPass->password,
2450 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2452 char user[64], pass[64];
2455 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2456 ret = cfg->global_client_authentication(user, 0, pass,
2460 ret = cfg->global_client_authentication(0, 0, 0, m_peername);
2464 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2466 m_marcxml_mode = none;
2467 if (apdu->which == Z_APDU_searchRequest)
2469 Z_SearchRequest *sr = apdu->u.searchRequest;
2472 Yaz_ProxyConfig *cfg = check_reconfigure();
2474 Z_RecordComposition rc_temp, *rc = 0;
2475 if (sr->smallSetElementSetNames)
2477 rc_temp.which = Z_RecordComp_simple;
2478 rc_temp.u.simple = sr->smallSetElementSetNames;
2482 if (sr->preferredRecordSyntax)
2483 oid_oidcpy(m_frontend_type, sr->preferredRecordSyntax);
2485 m_frontend_type[0] = -1;
2487 char *stylesheet_name = 0;
2489 err = cfg->check_syntax(odr_encode(),
2491 sr->preferredRecordSyntax, rc,
2492 &addinfo, &stylesheet_name, &m_schema,
2493 &m_backend_type, &m_backend_charset,
2494 &m_usemarcon_ini_stage1,
2495 &m_usemarcon_ini_stage2);
2496 if (stylesheet_name)
2498 m_parent->low_socket_close();
2501 if (m_stylesheet_xsp)
2502 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2503 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2506 m_stylesheet_offset = 0;
2507 xfree(stylesheet_name);
2509 m_parent->low_socket_open();
2513 sr->smallSetElementSetNames = 0;
2514 sr->mediumSetElementSetNames = 0;
2515 m_marcxml_mode = marcxml;
2516 sr->preferredRecordSyntax =
2517 yaz_string_to_oid_odr(
2518 yaz_oid_std(), CLASS_RECSYN,
2519 m_backend_type ? m_backend_type : OID_STR_USMARC,
2524 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2526 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2527 new_apdu->u.searchResponse->records =
2528 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2529 *new_apdu->u.searchResponse->searchStatus = 0;
2531 send_to_client(new_apdu);
2535 else if (m_backend_type)
2537 sr->preferredRecordSyntax =
2538 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN,
2539 m_backend_type, odr_encode());
2542 else if (apdu->which == Z_APDU_presentRequest)
2544 Z_PresentRequest *pr = apdu->u.presentRequest;
2547 Yaz_ProxyConfig *cfg = check_reconfigure();
2549 if (pr->preferredRecordSyntax)
2550 oid_oidcpy(m_frontend_type, pr->preferredRecordSyntax);
2552 m_frontend_type[0] = -1;
2554 char *stylesheet_name = 0;
2556 err = cfg->check_syntax(odr_encode(), m_default_target,
2557 pr->preferredRecordSyntax,
2558 pr->recordComposition,
2559 &addinfo, &stylesheet_name, &m_schema,
2560 &m_backend_type, &m_backend_charset,
2561 &m_usemarcon_ini_stage1,
2562 &m_usemarcon_ini_stage2
2564 if (stylesheet_name)
2566 m_parent->low_socket_close();
2569 if (m_stylesheet_xsp)
2570 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2571 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2574 m_stylesheet_offset = 0;
2575 xfree(stylesheet_name);
2577 m_parent->low_socket_open();
2581 pr->recordComposition = 0;
2582 m_marcxml_mode = marcxml;
2584 pr->preferredRecordSyntax =
2585 yaz_string_to_oid_odr(
2586 yaz_oid_std(), CLASS_RECSYN,
2587 m_backend_type ? m_backend_type : OID_STR_USMARC,
2592 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2594 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2595 new_apdu->u.presentResponse->records =
2596 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2597 *new_apdu->u.presentResponse->presentStatus =
2598 Z_PresentStatus_failure;
2600 send_to_client(new_apdu);
2604 else if (m_backend_type)
2606 pr->preferredRecordSyntax =
2607 yaz_string_to_oid_odr(yaz_oid_std(),
2608 CLASS_RECSYN, m_backend_type,
2615 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2619 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2620 odr_malloc(o, sizeof(Z_ElementSetNames));
2621 esn->which = Z_ElementSetNames_generic;
2622 esn->u.generic = odr_strdup(o, schema);
2626 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2629 Yaz_ProxyConfig *cfg = check_reconfigure();
2631 t = cfg->get_explain_name(db, backend_db);
2633 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2640 xfree(m_default_target);
2641 m_default_target = xstrdup(t);
2645 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2648 if (strcmp(hreq->method, "GET"))
2650 if (hreq->path[0] != '/')
2652 const char *cp = hreq->path;
2655 if (*cp == '/' && strchr("/.", cp[1]))
2660 Yaz_ProxyConfig *cfg = check_reconfigure();
2662 if (!cfg->get_file_access_info(hreq->path+1))
2665 const char *fname = hreq->path+1;
2666 if (stat(fname, &sbuf))
2668 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2672 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2674 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2677 if (sbuf.st_size > (off_t) 1000000)
2679 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2684 ODR o = odr_encode();
2686 const char *ctype = cfg->check_mime_type(fname);
2687 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2688 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2690 hres->version = odr_strdup(o, m_http_version);
2691 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2692 if (m_http_keepalive)
2693 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2697 hres->content_len = sbuf.st_size;
2698 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2699 FILE *f = fopen(fname, "rb");
2702 fread(hres->content_buf, 1, hres->content_len, f);
2709 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2711 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2715 send_GDU(gdu, &len);
2716 recv_GDU_more(true);
2720 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2724 odr_destroy(m_s2z_odr_init);
2727 if (m_s2z_odr_search)
2729 odr_destroy(m_s2z_odr_search);
2730 m_s2z_odr_search = 0;
2733 m_http_keepalive = 0;
2735 if (!strcmp(hreq->version, "1.0"))
2737 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2738 if (v && !strcmp(v, "Keep-Alive"))
2739 m_http_keepalive = 1;
2741 m_http_keepalive = 0;
2742 m_http_version = "1.0";
2746 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2747 if (v && !strcmp(v, "close"))
2748 m_http_keepalive = 0;
2750 m_http_keepalive = 1;
2751 m_http_version = "1.1";
2754 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2755 char authorization_str[255];
2756 *authorization_str = '\0';
2757 if (a && strncasecmp(a, "Basic ", 6) == 0)
2758 base64_decode(a + 6, authorization_str, 254);
2760 Z_SRW_PDU *srw_pdu = 0;
2761 Z_SOAP *soap_package = 0;
2763 Z_SRW_diagnostic *diagnostic = 0;
2764 int num_diagnostic = 0;
2766 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2768 if (file_access(hreq))
2772 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2774 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2775 &charset, &diagnostic, &num_diagnostic) == 0)
2777 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2778 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2779 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2780 m_s2z_init_apdu = 0;
2781 m_s2z_search_apdu = 0;
2782 m_s2z_present_apdu = 0;
2784 m_s2z_stylesheet = 0;
2786 Z_IdAuthentication *auth = NULL;
2787 if (*authorization_str)
2789 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2790 auth->which = Z_IdAuthentication_idPass;
2791 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2792 auth->u.idPass->groupId = NULL;
2793 char *p = strchr(authorization_str, ':');
2798 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2800 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2803 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2806 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2808 const char *backend_db = srw_req->database;
2809 srw_get_client(srw_req->database, &backend_db);
2811 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2812 // recordXPath unsupported.
2813 if (srw_req->recordXPath)
2815 yaz_add_srw_diagnostic(odr_decode(),
2816 &diagnostic, &num_diagnostic,
2820 if (srw_req->sort_type != Z_SRW_sort_type_none)
2822 yaz_add_srw_diagnostic(odr_decode(),
2823 &diagnostic, &num_diagnostic,
2827 if (srw_req->stylesheet)
2829 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2831 // set packing for response records ..
2832 if (srw_req->recordPacking &&
2833 !strcmp(srw_req->recordPacking, "xml"))
2834 m_s2z_packing = Z_SRW_recordPacking_XML;
2836 m_s2z_packing = Z_SRW_recordPacking_string;
2840 Z_SRW_PDU *srw_pdu =
2841 yaz_srw_get(odr_encode(),
2842 Z_SRW_searchRetrieve_response);
2843 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2845 srw_res->diagnostics = diagnostic;
2846 srw_res->num_diagnostics = num_diagnostic;
2847 send_srw_response(srw_pdu);
2851 // prepare search PDU
2852 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2853 Z_APDU_searchRequest);
2854 Z_SearchRequest *z_searchRequest =
2855 m_s2z_search_apdu->u.searchRequest;
2857 z_searchRequest->num_databaseNames = 1;
2858 z_searchRequest->databaseNames = (char**)
2859 odr_malloc(m_s2z_odr_search, sizeof(char *));
2860 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2863 // query transformation
2864 Z_Query *query = (Z_Query *)
2865 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2866 z_searchRequest->query = query;
2868 if (srw_req->query_type == Z_SRW_query_type_cql)
2870 Z_External *ext = (Z_External *)
2871 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2872 ext->direct_reference =
2873 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2874 ext->indirect_reference = 0;
2875 ext->descriptor = 0;
2876 ext->which = Z_External_CQL;
2877 ext->u.cql = srw_req->query.cql;
2879 query->which = Z_Query_type_104;
2880 query->u.type_104 = ext;
2882 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2884 Z_RPNQuery *RPNquery;
2885 YAZ_PQF_Parser pqf_parser;
2887 pqf_parser = yaz_pqf_create ();
2889 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2890 srw_req->query.pqf);
2893 const char *pqf_msg;
2895 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2897 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2898 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2900 send_to_srw_client_error(10, 0);
2903 query->which = Z_Query_type_1;
2904 query->u.type_1 = RPNquery;
2906 yaz_pqf_destroy (pqf_parser);
2910 send_to_srw_client_error(7, "query");
2915 m_s2z_present_apdu = 0;
2917 if (srw_req->maximumRecords)
2918 max = *srw_req->maximumRecords;
2920 if (srw_req->startRecord)
2921 start = *srw_req->startRecord;
2924 // Some backend, such as Voyager doesn't honor piggyback
2925 // So we use present always (0 &&).
2926 if (0 && start <= 1) // Z39.50 piggyback
2928 *z_searchRequest->smallSetUpperBound = max;
2929 *z_searchRequest->mediumSetPresentNumber = max;
2930 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2932 z_searchRequest->preferredRecordSyntax =
2933 yaz_string_to_oid_odr(yaz_oid_std(),
2934 CLASS_RECSYN, OID_STR_XML,
2937 if (srw_req->recordSchema)
2939 z_searchRequest->smallSetElementSetNames =
2940 z_searchRequest->mediumSetElementSetNames =
2941 mk_esn_from_schema(m_s2z_odr_search,
2942 srw_req->recordSchema);
2945 else // Z39.50 present
2947 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2948 Z_APDU_presentRequest);
2949 Z_PresentRequest *z_presentRequest =
2950 m_s2z_present_apdu->u.presentRequest;
2951 *z_presentRequest->resultSetStartPoint = start;
2952 *z_presentRequest->numberOfRecordsRequested = max;
2954 z_presentRequest->preferredRecordSyntax =
2955 yaz_string_to_oid_odr(yaz_oid_std(),
2956 CLASS_RECSYN, OID_STR_XML,
2959 if (srw_req->recordSchema)
2961 z_presentRequest->recordComposition =
2962 (Z_RecordComposition *)
2963 odr_malloc(m_s2z_odr_search,
2964 sizeof(Z_RecordComposition));
2965 z_presentRequest->recordComposition->which =
2966 Z_RecordComp_simple;
2967 z_presentRequest->recordComposition->u.simple =
2968 mk_esn_from_schema(m_s2z_odr_search,
2969 srw_req->recordSchema);
2975 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2976 Z_APDU_initRequest);
2978 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2980 // prevent m_initRequest_apdu memory from being grabbed
2981 // in Yaz_Proxy::handle_incoming_Z_PDU
2982 m_initRequest_apdu = m_s2z_init_apdu;
2983 handle_incoming_Z_PDU(m_s2z_init_apdu);
2988 handle_incoming_Z_PDU(m_s2z_search_apdu);
2992 else if (srw_pdu->which == Z_SRW_explain_request)
2994 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2996 const char *backend_db = srw_req->database;
2997 srw_get_client(srw_req->database, &backend_db);
2999 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3002 if (srw_req->stylesheet)
3004 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3006 if (srw_req->recordPacking &&
3007 !strcmp(srw_req->recordPacking, "xml"))
3008 m_s2z_packing = Z_SRW_recordPacking_XML;
3010 m_s2z_packing = Z_SRW_recordPacking_string;
3014 send_srw_explain_response(diagnostic, num_diagnostic);
3020 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3021 Z_APDU_initRequest);
3023 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3025 // prevent m_initRequest_apdu memory from being grabbed
3026 // in Yaz_Proxy::handle_incoming_Z_PDU
3027 m_initRequest_apdu = m_s2z_init_apdu;
3028 handle_incoming_Z_PDU(m_s2z_init_apdu);
3031 send_srw_explain_response(0, 0);
3034 else if (srw_pdu->which == Z_SRW_scan_request)
3036 m_s2z_database = odr_strdup(m_s2z_odr_init,
3037 srw_pdu->u.scan_request->database);
3039 yaz_add_srw_diagnostic(odr_decode(),
3040 &diagnostic, &num_diagnostic,
3042 Z_SRW_PDU *srw_pdu =
3043 yaz_srw_get(odr_encode(),
3044 Z_SRW_scan_response);
3045 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3047 srw_res->diagnostics = diagnostic;
3048 srw_res->num_diagnostics = num_diagnostic;
3049 send_srw_response(srw_pdu);
3056 send_to_srw_client_error(4, 0);
3059 send_http_response(400);
3062 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3065 Z_OtherInformation **oi;
3066 get_otherInfoAPDU(apdu, &oi);
3068 if (apdu->u.initRequest->implementationId)
3069 yaz_log(YLOG_LOG, "%simplementationId: %s",
3070 m_session_str, apdu->u.initRequest->implementationId);
3071 if (apdu->u.initRequest->implementationName)
3072 yaz_log(YLOG_LOG, "%simplementationName: %s",
3073 m_session_str, apdu->u.initRequest->implementationName);
3074 if (apdu->u.initRequest->implementationVersion)
3075 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3076 m_session_str, apdu->u.initRequest->implementationVersion);
3077 if (m_initRequest_apdu == 0)
3079 if (m_initRequest_mem)
3080 nmem_destroy(m_initRequest_mem);
3082 m_initRequest_apdu = apdu;
3083 m_initRequest_mem = odr_extract_mem(odr_decode());
3085 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3086 preferredMessageSize;
3087 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3088 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3090 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3092 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3093 yaz_get_charneg_record(*oi);
3095 // Save proposal charsets and langs.
3096 if (ODR_MASK_GET(apdu->u.initRequest->options,
3097 Z_Options_negotiationModel)
3098 && charSetandLangRecord)
3101 yaz_get_proposal_charneg(m_referenceId_mem,
3102 charSetandLangRecord,
3103 &m_initRequest_oi_negotiation_charsets,
3104 &m_initRequest_oi_negotiation_num_charsets,
3105 &m_initRequest_oi_negotiation_langs,
3106 &m_initRequest_oi_negotiation_num_langs,
3107 &m_initRequest_oi_negotiation_selected);
3109 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3111 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3112 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3113 m_initRequest_oi_negotiation_charsets[i]:"none");
3115 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3117 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3118 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3119 m_initRequest_oi_negotiation_langs[i]:"none");
3121 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3122 m_session_str, m_initRequest_oi_negotiation_selected);
3124 // save init options for the response..
3125 m_initRequest_options = apdu->u.initRequest->options;
3127 apdu->u.initRequest->options =
3128 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3129 sizeof(Odr_bitmask));
3130 ODR_MASK_ZERO(apdu->u.initRequest->options);
3132 for (i = 0; i<= 24; i++)
3133 ODR_MASK_SET(apdu->u.initRequest->options, i);
3134 // check negotiation option
3135 if (!ODR_MASK_GET(m_initRequest_options,
3136 Z_Options_negotiationModel))
3138 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3139 Z_Options_negotiationModel);
3141 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3142 Z_Options_concurrentOperations);
3144 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3145 apdu->u.initRequest->protocolVersion =
3146 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3147 sizeof(Odr_bitmask));
3148 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3150 for (i = 0; i<= 8; i++)
3151 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3153 handle_charset_lang_negotiation(apdu);
3154 if (m_client->m_init_flag)
3156 if (handle_init_response_for_invalid_session(apdu))
3158 if (m_client->m_initResponse)
3160 Z_APDU *apdu2 = m_client->m_initResponse;
3161 apdu2->u.initResponse->otherInfo = 0;
3162 if (m_client->m_cookie && *m_client->m_cookie)
3163 set_otherInformationString(apdu2, OID_STR_COOKIE, 1,
3164 m_client->m_cookie);
3165 apdu2->u.initResponse->referenceId =
3166 apdu->u.initRequest->referenceId;
3167 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3168 apdu2->u.initResponse->protocolVersion =
3169 m_client->m_initResponse_version;
3171 handle_charset_lang_negotiation(apdu2);
3173 if (m_timeout_mode == timeout_busy)
3174 m_timeout_mode = timeout_normal;
3175 send_to_client(apdu2);
3179 m_client->m_init_flag = 1;
3181 if (m_num_msg_threads && m_my_thread)
3183 Auth_Msg *m = new Auth_Msg;
3185 z_APDU(odr_encode(), &apdu, 0, "encode");
3186 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3187 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3188 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3189 odr_reset(odr_encode());
3192 m_my_thread->put(m);
3196 int ret = handle_authentication(apdu);
3197 result_authentication(apdu, ret);
3201 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3203 Z_ReferenceId **refid = get_referenceIdP(apdu);
3204 nmem_reset(m_referenceId_mem);
3205 if (refid && *refid)
3207 m_referenceId = (Z_ReferenceId *)
3208 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3209 m_referenceId->len = m_referenceId->size = (*refid)->len;
3210 m_referenceId->buf = (unsigned char *)
3211 nmem_malloc(m_referenceId_mem, (*refid)->len);
3212 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3217 if (!m_client && m_flag_invalid_session)
3219 // Got request for a session that is invalid..
3220 m_apdu_invalid_session = apdu; // save package
3221 m_mem_invalid_session = odr_extract_mem(odr_decode());
3222 apdu = m_initRequest_apdu; // but throw an init to the target
3225 if (apdu->which == Z_APDU_searchRequest)
3226 m_search_stat.add_bytes(1);
3228 // Handle global authentication
3229 if (!handle_global_authentication(apdu))
3232 { // HTTP. Send unauthorized
3233 send_http_response(401);
3238 // Z39.50 just shutdown
3245 // Determine our client.
3246 Z_OtherInformation **oi;
3247 get_otherInfoAPDU(apdu, &oi);
3248 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
3252 { // HTTP. Send not found
3253 send_http_response(404);
3258 // Z39.50 just shutdown
3264 m_client->m_server = this;
3266 if (apdu->which == Z_APDU_initRequest)
3269 handle_incoming_Z_PDU_2(apdu);
3272 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3274 handle_max_record_retrieve(apdu);
3277 apdu = handle_syntax_validation(apdu);
3280 apdu = handle_query_transformation(apdu);
3283 apdu = handle_target_charset_conversion(apdu);
3286 apdu = handle_query_validation(apdu);
3289 apdu = result_set_optimize(apdu);
3293 m_client->timeout(m_target_idletime); // mark it active even
3294 recv_GDU_more(true);
3295 // though we didn't use it
3299 // delete other info construct completely if 0 elements
3300 Z_OtherInformation **oi;
3301 get_otherInfoAPDU(apdu, &oi);
3302 if (oi && *oi && (*oi)->num_elements == 0)
3305 if (apdu->which == Z_APDU_presentRequest &&
3306 m_client->m_resultSetStartPoint == 0)
3308 Z_PresentRequest *pr = apdu->u.presentRequest;
3309 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3310 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3312 m_client->m_resultSetStartPoint = 0;
3314 if (m_client->send_to_target(apdu) < 0)
3316 m_client->shutdown();
3319 m_client->m_waiting = 1;
3322 void Yaz_Proxy::connectNotify()
3326 void Yaz_Proxy::releaseClient()
3328 xfree(m_proxyTarget);
3330 m_flag_invalid_session = 0;
3331 // only keep if keep_alive flag is set...
3333 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3334 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3335 m_client->m_waiting == 0)
3337 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3339 m_client->get_hostname());
3340 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3341 m_session_str, m_client->m_pdu_recv,
3342 m_client->m_bytes_sent + m_client->m_bytes_recv,
3343 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3344 assert (m_client->m_waiting != 2);
3345 // Tell client (if any) that no server connection is there..
3346 m_client->m_server = 0;
3351 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3353 m_client->get_hostname());
3354 assert (m_client->m_waiting != 2);
3360 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3366 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3370 m_parent->pre_init();
3373 bool Yaz_Proxy::dec_ref()
3375 m_http_keepalive = 0;
3378 if (m_ref_count > 0)
3387 const char *Yaz_ProxyClient::get_session_str()
3391 return m_server->get_session_str();
3394 void Yaz_ProxyClient::shutdown()
3396 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3401 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3402 m_server->dec_ref();
3408 void Yaz_Proxy::failNotify()
3411 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3415 void Yaz_Proxy::send_response_fail_client(const char *addr)
3419 Z_SRW_diagnostic *diagnostic = 0;
3420 int num_diagnostic = 0;
3422 yaz_add_srw_diagnostic(odr_encode(),
3423 &diagnostic, &num_diagnostic,
3424 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3425 if (m_s2z_search_apdu)
3426 send_srw_search_response(diagnostic, num_diagnostic);
3428 send_srw_explain_response(diagnostic, num_diagnostic);
3431 void Yaz_ProxyClient::failNotify()
3434 m_server->inc_request_no();
3435 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3436 get_session_str(), get_hostname());
3439 m_server->send_response_fail_client(get_hostname());
3443 void Yaz_ProxyClient::connectNotify()
3445 const char *s = get_session_str();
3446 const char *h = get_hostname();
3447 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3449 timeout(m_target_idletime);
3454 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3455 *the_PDU_Observable, int fd)
3457 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3460 Yaz_ProxyClient::~Yaz_ProxyClient()
3465 m_next->m_prev = m_prev;
3466 m_waiting = 2; // for debugging purposes only.
3467 odr_destroy(m_init_odr);
3468 odr_destroy(m_idAuthentication_odr);
3469 delete m_last_query;
3470 xfree (m_last_resultSetId);
3474 void Yaz_ProxyClient::pre_init_client()
3476 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3477 Z_InitRequest *req = apdu->u.initRequest;
3480 for (i = 0; i<= 24; i++)
3481 ODR_MASK_SET(req->options, i);
3482 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3483 Z_Options_negotiationModel);
3484 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3485 Z_Options_concurrentOperations);
3486 for (i = 0; i<= 10; i++)
3487 ODR_MASK_SET(req->protocolVersion, i);
3489 if (send_to_target(apdu) < 0)
3500 void Yaz_Proxy::pre_init()
3503 const char *name = 0;
3504 const char *zurl_in_use[MAX_ZURL_PLEX];
3505 int limit_bw, limit_pdu, limit_req, limit_search;
3506 int target_idletime, client_idletime;
3508 int keepalive_limit_bw, keepalive_limit_pdu;
3510 const char *cql2rpn = 0;
3511 const char *authentication = 0;
3512 const char *negotiation_charset = 0;
3513 const char *negotiation_lang = 0;
3515 Yaz_ProxyConfig *cfg = check_reconfigure();
3519 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3524 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3525 &limit_bw, &limit_pdu, &limit_req,
3527 &target_idletime, &client_idletime,
3529 &keepalive_limit_bw,
3530 &keepalive_limit_pdu,
3534 &negotiation_charset,
3542 for (j = 0; zurl_in_use[j]; j++)
3546 int spare_waiting = 0;
3549 for (c = m_clientPool; c; c = c->m_next)
3551 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3553 if (c->m_cookie == 0)
3555 if (c->m_server == 0)
3567 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3568 "sparew=%d preinit=%d",m_session_str,
3569 name, zurl_in_use[j], in_use, other,
3570 spare, spare_waiting, pre_init);
3571 if (spare + spare_waiting < pre_init)
3573 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3574 c->m_next = m_clientPool;
3576 c->m_next->m_prev = &c->m_next;
3578 c->m_prev = &m_clientPool;
3580 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3581 c->set_APDU_yazlog(1);
3583 c->set_APDU_yazlog(0);
3585 if (c->client(zurl_in_use[j]))
3593 c->m_target_idletime = target_idletime;
3594 c->m_seqno = m_seqno++;
3601 void Yaz_Proxy::timeoutNotify()
3606 switch(m_timeout_mode)
3608 case timeout_normal:
3612 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3615 case timeout_reduce:
3616 timeout(m_client_idletime);
3617 m_timeout_mode = timeout_busy;
3618 gdu = m_timeout_gdu;
3620 recv_GDU_normal(gdu);
3623 assert(m_stylesheet_nprl);
3624 convert_xsl_delay();
3625 recv_GDU_more(true);
3635 void Yaz_Proxy::markInvalid()
3638 m_flag_invalid_session = 1;
3641 void Yaz_ProxyClient::timeoutNotify()
3644 m_server->inc_request_no();
3646 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3650 m_server->send_response_fail_client(get_hostname());
3652 Yaz_Proxy *proxy_root = m_root;
3656 proxy_root->pre_init();
3659 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3660 Yaz_Proxy *parent) :
3661 Z_Assoc (the_PDU_Observable)
3668 m_last_resultSetId = 0;
3669 m_last_resultCount = 0;
3673 m_init_odr = odr_createmem (ODR_DECODE);
3675 m_initResponse_options = 0;
3676 m_initResponse_version = 0;
3677 m_initResponse_preferredMessageSize = 0;
3678 m_initResponse_maximumRecordSize = 0;
3679 m_resultSetStartPoint = 0;
3680 m_bytes_sent = m_bytes_recv = 0;
3684 m_target_idletime = 600;
3686 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3687 m_idAuthentication_ber_buf = 0;
3688 m_idAuthentication_ber_size = 0;
3691 const char *Yaz_Proxy::option(const char *name, const char *value)
3693 if (!strcmp (name, "optimize")) {
3696 m_optimize = xstrdup (value);
3703 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3708 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3710 if (apdu->which == Z_GDU_Z3950)
3711 recv_Z_PDU(apdu->u.z3950, len);
3712 else if (apdu->which == Z_GDU_HTTP_Response)
3713 recv_HTTP_response(apdu->u.HTTP_Response, len);
3718 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3720 if (!m_flag_invalid_session)
3722 m_flag_invalid_session = 0;
3723 handle_incoming_Z_PDU(m_apdu_invalid_session);
3724 assert (m_mem_invalid_session);
3725 nmem_destroy(m_mem_invalid_session);
3726 m_mem_invalid_session = 0;
3730 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3732 m_bytes_recv += len;
3736 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3737 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3738 apdu_name(apdu), get_hostname(), len);
3739 if (apdu->which == Z_APDU_initResponse)
3741 if (!m_server) // if this is a pre init session , check for more
3743 NMEM nmem = odr_extract_mem (odr_decode());
3744 odr_reset (m_init_odr);
3745 nmem_transfer (m_init_odr->mem, nmem);
3746 m_initResponse = apdu;
3747 m_initResponse_options = apdu->u.initResponse->options;
3748 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3749 m_initResponse_preferredMessageSize =
3750 *apdu->u.initResponse->preferredMessageSize;
3751 m_initResponse_maximumRecordSize =
3752 *apdu->u.initResponse->maximumRecordSize;
3754 Z_InitResponse *ir = apdu->u.initResponse;
3756 // apply YAZ Proxy version
3757 char *imv0 = ir->implementationVersion;
3758 char *imv1 = (char*)
3759 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3764 strcat(imv1, "/" VERSION);
3766 ir->implementationVersion = imv1;
3768 // apply YAZ Proxy implementation name
3769 char *im0 = ir->implementationName;
3771 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3778 strcat(im1, "(YAZ Proxy)");
3779 ir->implementationName = im1;
3781 nmem_destroy (nmem);
3783 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3786 if (apdu->which == Z_APDU_searchResponse)
3788 Z_SearchResponse *sr = apdu->u.searchResponse;
3789 m_last_resultCount = *sr->resultCount;
3790 int status = *sr->searchStatus;
3791 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3795 if (sr->records && sr->records->which == Z_Records_DBOSD)
3797 m_cache.add(odr_decode(),
3798 sr->records->u.databaseOrSurDiagnostics, 1,
3803 if (apdu->which == Z_APDU_presentResponse)
3805 Z_PresentResponse *pr = apdu->u.presentResponse;
3809 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3810 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3811 sr->referenceId = pr->referenceId;
3812 *sr->resultCount = m_last_resultCount;
3813 sr->records = pr->records;
3814 sr->nextResultSetPosition = pr->nextResultSetPosition;
3815 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3819 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3821 m_cache.add(odr_decode(),
3822 pr->records->u.databaseOrSurDiagnostics,
3823 m_resultSetStartPoint, -1);
3824 m_resultSetStartPoint = 0;
3828 set_otherInformationString (apdu, OID_STR_COOKIE, 1, m_cookie);
3830 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3833 server->send_to_client(apdu);
3834 if (apdu->which == Z_APDU_close)
3837 server->recv_GDU_more(true);
3840 void Yaz_Proxy::low_socket_close()
3845 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3846 if (m_lo_fd[i] >= 0)
3847 ::close(m_lo_fd[i]);
3851 void Yaz_Proxy::low_socket_open()
3856 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3857 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3861 int Yaz_Proxy::server(const char *addr)
3863 int r = Z_Assoc::server(addr);
3866 yaz_log(YLOG_LOG, "%sStarted proxy "
3870 " on %s", m_session_str, addr);
3876 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3878 const char *base64_chars =
3879 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3880 int len = strlen(base64);
3884 for (int pos = 0; pos <= len; pos++)
3886 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3889 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3892 char ch = (char) (ch_ptr - base64_chars);
3896 buf[buf_pos] = ch << 2;
3899 buf[buf_pos++] += (ch & 0x30) >> 4;
3900 buf[buf_pos] = (ch & 0x0f) << 4;
3903 buf[buf_pos++] += (ch & 0x3c) >> 2;
3904 buf[buf_pos] = (ch & 0x03) << 6;
3907 buf[buf_pos++] += ch;
3914 buf[buf_pos] = '\0';
3920 * indent-tabs-mode: nil
3922 * vim: shiftwidth=4 tabstop=8 expandtab