1 /* This file is part of YAZ proxy
2 Copyright (C) 1998-2008 Index Data
4 YAZ proxy is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 YAZ proxy is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #define HAVE_SYS_STAT_H 1
21 #define HAVE_SYS_TYPES_H 1
31 #include <sys/types.h>
43 #include <yaz/marcdisp.h>
44 #include <yaz/yaz-iconv.h>
46 #include <yaz/diagbib1.h>
48 #include <yaz/pquery.h>
49 #include <yaz/otherinfo.h>
50 #include <yaz/charneg.h>
51 #include <yaz/oid_db.h>
52 #include "msg-thread.h"
54 using namespace yazpp_1;
57 #define strncasecmp _strnicmp
60 class YAZ_EXPORT Auth_Msg : public IMsg_Thread {
63 IMsg_Thread *handle();
75 m_nmem = nmem_create();
83 IMsg_Thread *Auth_Msg::handle()
85 ODR decode = odr_createmem(ODR_DECODE);
88 odr_setbuf(decode, m_apdu_buf, m_apdu_len, 0);
89 int r = z_APDU(decode, &apdu, 0, 0);
92 yaz_log(YLOG_WARN, "decode failed in Auth_Msg::handle");
96 m_ret = m_proxy->handle_authentication(apdu);
102 void Auth_Msg::result()
104 if (m_proxy->dec_ref())
106 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
110 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
112 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
114 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
115 m_proxy->result_authentication(apdu, m_ret);
120 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
122 if (apdu == 0 || ret == 0)
124 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
125 *apdu_reject->u.initResponse->result = 0;
126 send_to_client(apdu_reject);
131 if (apdu->which == Z_APDU_initRequest)
133 Yaz_ProxyConfig *cfg = check_reconfigure();
135 cfg->target_authentication(m_default_target, odr_encode(),
136 apdu->u.initRequest);
138 handle_incoming_Z_PDU_2(apdu);
142 static const char *apdu_name(Z_APDU *apdu)
146 case Z_APDU_initRequest:
147 return "initRequest";
148 case Z_APDU_initResponse:
149 return "initResponse";
150 case Z_APDU_searchRequest:
151 return "searchRequest";
152 case Z_APDU_searchResponse:
153 return "searchResponse";
154 case Z_APDU_presentRequest:
155 return "presentRequest";
156 case Z_APDU_presentResponse:
157 return "presentResponse";
158 case Z_APDU_deleteResultSetRequest:
159 return "deleteResultSetRequest";
160 case Z_APDU_deleteResultSetResponse:
161 return "deleteResultSetResponse";
162 case Z_APDU_scanRequest:
163 return "scanRequest";
164 case Z_APDU_scanResponse:
165 return "scanResponse";
166 case Z_APDU_sortRequest:
167 return "sortRequest";
168 case Z_APDU_sortResponse:
169 return "sortResponse";
170 case Z_APDU_extendedServicesRequest:
171 return "extendedServicesRequest";
172 case Z_APDU_extendedServicesResponse:
173 return "extendedServicesResponse";
180 static const char *gdu_name(Z_GDU *gdu)
185 return apdu_name(gdu->u.z3950);
186 case Z_GDU_HTTP_Request:
187 return "HTTP Request";
188 case Z_GDU_HTTP_Response:
189 return "HTTP Response";
191 return "Unknown request/response";
194 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
195 ISocketObservable *the_socket_observable,
198 Z_Assoc(the_PDU_Observable),
199 m_bw_stat(60), m_pdu_stat(60), m_search_stat(60)
201 m_PDU_Observable = the_PDU_Observable;
202 m_socket_observable = the_socket_observable;
207 m_keepalive_limit_bw = 500000;
208 m_keepalive_limit_pdu = 1000;
210 m_default_target = 0;
211 m_proxy_negotiation_charset = 0;
212 m_proxy_negotiation_lang = 0;
213 m_proxy_negotiation_default_charset = 0;
214 m_charset_converter = new Yaz_CharsetConverter;
218 m_client_idletime = 600;
219 m_target_idletime = 600;
220 m_max_sockets = 1024;
221 m_optimize = xstrdup ("1");
222 strcpy(m_session_str, "0 ");
230 m_max_connect_period = 0;
232 m_limit_connect_period = 0;
233 m_timeout_mode = timeout_normal;
235 m_max_record_retrieve = 0;
239 m_flag_invalid_session = 0;
241 m_referenceId_mem = nmem_create();
243 m_marcxml_mode = none;
244 m_stylesheet_xsp = 0;
245 m_stylesheet_nprl = 0;
246 m_stylesheet_apdu = 0;
247 m_s2z_stylesheet = 0;
251 m_backend_charset = 0;
252 m_frontend_type[0] = -1;
253 m_initRequest_apdu = 0;
254 m_initRequest_mem = 0;
255 m_initRequest_preferredMessageSize = 0;
256 m_initRequest_maximumRecordSize = 0;
257 m_initRequest_options = 0;
258 m_initRequest_version = 0;
259 m_initRequest_oi_negotiation_charsets = 0;
260 m_initRequest_oi_negotiation_num_charsets = 0;
261 m_initRequest_oi_negotiation_langs = 0;
262 m_initRequest_oi_negotiation_num_langs = 0;
263 m_initRequest_oi_negotiation_selected = 0;
264 m_apdu_invalid_session = 0;
265 m_mem_invalid_session = 0;
267 m_s2z_odr_search = 0;
269 m_s2z_search_apdu = 0;
270 m_s2z_present_apdu = 0;
271 m_http_keepalive = 0;
274 m_s2z_packing = Z_SRW_recordPacking_string;
275 #if HAVE_GETTIMEOFDAY
276 m_time_tv = xmalloc(sizeof(struct timeval));
277 struct timeval *tv = (struct timeval *) m_time_tv;
283 m_usemarcon_ini_stage1 = 0;
284 m_usemarcon_ini_stage2 = 0;
285 m_usemarcon = new Yaz_usemarcon();
290 m_main_ptr_dec = false;
292 m_num_msg_threads = 0;
295 void Yaz_Proxy::inc_ref()
300 Yaz_Proxy::~Yaz_Proxy()
302 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
303 m_bytes_sent, m_bytes_recv);
304 nmem_destroy(m_initRequest_mem);
305 nmem_destroy(m_mem_invalid_session);
306 nmem_destroy(m_referenceId_mem);
308 xfree(m_proxyTarget);
309 xfree(m_default_target);
310 xfree(m_proxy_negotiation_charset);
311 xfree(m_proxy_negotiation_lang);
312 xfree(m_proxy_negotiation_default_charset);
313 delete m_charset_converter;
317 if (m_stylesheet_xsp)
318 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
324 xfree (m_backend_type);
325 xfree (m_backend_charset);
326 xfree (m_usemarcon_ini_stage1);
327 xfree (m_usemarcon_ini_stage2);
330 odr_destroy(m_s2z_odr_init);
331 if (m_s2z_odr_search)
332 odr_destroy(m_s2z_odr_search);
340 void Yaz_Proxy::set_debug_mode(int mode)
345 int Yaz_Proxy::set_config(const char *config)
348 m_config = new Yaz_ProxyConfig();
349 xfree(m_config_fname);
350 m_config_fname = xstrdup(config);
351 int r = m_config->read_xml(config);
355 m_config->get_generic_info(&m_log_mask, &m_max_clients,
356 &m_max_connect, &m_limit_connect, &period,
358 m_connect.set_period(period);
363 void Yaz_Proxy::set_default_target(const char *target)
365 xfree (m_default_target);
366 m_default_target = 0;
368 m_default_target = (char *) xstrdup (target);
371 void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang,
372 const char *default_charset)
374 yaz_log(YLOG_DEBUG, "%sSet the proxy negotiation: charset to '%s', "
375 "default charset to '%s', language to '%s'", m_session_str,
376 charset?charset:"none",
377 default_charset?default_charset:"none",
379 xfree (m_proxy_negotiation_charset);
380 xfree (m_proxy_negotiation_lang);
381 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
383 m_proxy_negotiation_charset = (char *) xstrdup (charset);
385 m_proxy_negotiation_lang = (char *) xstrdup (lang);
387 m_proxy_negotiation_default_charset =
388 (char *) xstrdup (default_charset);
391 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
394 return m_parent->check_reconfigure();
396 Yaz_ProxyConfig *cfg = m_config;
399 yaz_log(YLOG_LOG, "reconfigure");
400 if (m_config_fname && cfg)
402 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
403 int r = cfg->read_xml(m_config_fname);
405 yaz_log(YLOG_WARN, "reconfigure failed");
410 cfg->get_generic_info(&m_log_mask, &m_max_clients,
411 &m_max_connect, &m_limit_connect,
412 &period, &m_num_msg_threads);
413 m_connect.set_period(period);
417 yaz_log(YLOG_LOG, "reconfigure");
423 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
424 *the_PDU_Observable, int fd)
428 char session_str[200];
429 const char *peername = the_PDU_Observable->getpeername();
431 peername = "nullpeer";
433 if (m_log_mask & PROXY_LOG_IP_CLIENT)
434 sprintf(session_str, "%ld:%d %.80s %d ",
435 (long) time(0), m_session_no, peername, 0);
437 sprintf(session_str, "%ld:%d %d ",
438 (long) time(0), m_session_no, 0);
441 yaz_log (YLOG_LOG, "%sNew session %s", session_str, peername);
443 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
444 m_socket_observable, this);
446 new_proxy->m_config = 0;
447 new_proxy->m_config_fname = 0;
448 new_proxy->timeout(m_client_idletime);
449 new_proxy->m_target_idletime = m_target_idletime;
450 new_proxy->set_default_target(m_default_target);
451 new_proxy->m_max_clients = m_max_clients;
452 new_proxy->m_log_mask = m_log_mask;
453 new_proxy->m_session_no = m_session_no;
454 new_proxy->m_num_msg_threads = m_num_msg_threads;
457 // in case we want to watch a particular client..
458 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
459 new_proxy->m_log_mask = 255;
462 new_proxy->set_APDU_log(get_APDU_log());
463 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
464 new_proxy->set_APDU_yazlog(1);
466 new_proxy->set_APDU_yazlog(0);
467 strcpy(new_proxy->m_session_str, session_str);
468 new_proxy->m_peername = xstrdup(peername);
469 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
470 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
471 // create thread object the first time we get an incoming connection
472 if (!m_my_thread && m_num_msg_threads > 0)
474 yaz_log (YLOG_LOG, "%sStarting message thread management. number=%d",
475 session_str, m_num_msg_threads);
476 m_my_thread = new Msg_Thread(m_socket_observable, m_num_msg_threads);
478 new_proxy->m_my_thread = m_my_thread;
482 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
484 Z_OtherInformationUnit *oi =
485 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_cookie, 1, 1);
487 if (oi && oi->which == Z_OtherInfo_characterInfo)
488 return oi->information.characterInfo;
492 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
494 Z_OtherInformationUnit *oi =
495 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_proxy, 1, 1);
497 if (oi && oi->which == Z_OtherInfo_characterInfo)
498 return oi->information.characterInfo;
501 const char *Yaz_Proxy::load_balance(const char **url)
503 int zurl_in_use[MAX_ZURL_PLEX];
504 int zurl_in_spare[MAX_ZURL_PLEX];
508 for (i = 0; i<MAX_ZURL_PLEX; i++)
511 zurl_in_spare[i] = 0;
513 for (c = m_parent->m_clientPool; c; c = c->m_next)
515 for (i = 0; url[i]; i++)
516 if (!strcmp(url[i], c->get_hostname()))
519 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
523 int min_use = 100000;
524 int spare_for_min = 0;
526 const char *ret_min = 0;
527 const char *ret_spare = 0;
528 for (i = 0; url[i]; i++)
530 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
531 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
532 if (min_use > zurl_in_use[i])
535 min_use = zurl_in_use[i];
536 spare_for_min = zurl_in_spare[i];
538 if (max_spare < zurl_in_spare[i])
541 max_spare = zurl_in_spare[i];
547 int Yaz_Proxy::get_number_of_connections()
549 int no_connections = 0;
552 for (c = m_parent->m_clientPool; c; c = c->m_next)
555 assert(*c->m_prev == c);
556 if (!strcmp(m_proxyTarget, c->get_hostname()))
561 yaz_log (YLOG_LOG, "%sExisting %s connections: %d", m_session_str, m_proxyTarget,
563 return no_connections;
566 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
567 const char *proxy_host, int *http_code)
570 Yaz_Proxy *parent = m_parent;
571 Yaz_ProxyClient *c = m_client;
575 const char *url[MAX_ZURL_PLEX];
576 Yaz_ProxyConfig *cfg = check_reconfigure();
579 if (parent && parent->m_debug_mode)
581 // only to be enabled for debugging...
582 if (!strcmp(proxy_host, "stop"))
585 xfree(m_default_target);
586 m_default_target = xstrdup(proxy_host);
588 proxy_host = m_default_target;
589 int client_idletime = -1;
590 const char *cql2rpn_fname = 0;
591 const char *negotiation_charset = 0;
592 const char *negotiation_lang = 0;
593 const char *query_charset = 0;
594 const char *default_client_query_charset = 0;
595 url[0] = m_default_target;
600 cfg->get_target_info(proxy_host, url, &m_bw_max,
601 &m_pdu_max, &m_max_record_retrieve,
603 &m_target_idletime, &client_idletime,
605 &parent->m_max_clients,
606 &m_keepalive_limit_bw,
607 &m_keepalive_limit_pdu,
610 &negotiation_charset,
613 &default_client_query_charset);
615 if (client_idletime != -1)
617 m_client_idletime = client_idletime;
618 timeout(m_client_idletime);
621 // get those FILE descriptors available
622 m_parent->low_socket_close();
624 m_cql2rpn.set_pqf_file(cql2rpn_fname);
625 // reserve them again
626 m_parent->low_socket_open();
628 if (negotiation_charset || negotiation_lang || default_client_query_charset)
630 set_proxy_negotiation(negotiation_charset,
631 negotiation_lang, default_client_query_charset);
633 m_charset_converter->set_target_query_charset(query_charset);
636 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
639 // we don't handle multiplexing for cookie session, so we just
640 // pick the first one in this case (anonymous users will be able
641 // to use any backend)
642 if (cookie && *cookie)
643 m_proxyTarget = (char*) xstrdup(url[0]);
645 m_proxyTarget = (char*) xstrdup(load_balance(url));
647 if (cookie && *cookie)
648 { // search in sessions with a cookie
649 for (c = parent->m_clientPool; c; c = c->m_next)
652 assert (*c->m_prev == c);
653 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
654 !strcmp(m_proxyTarget, c->get_hostname()))
657 // The following handles "cancel"
658 // If connection is busy (waiting for PDU) and
659 // we have an initRequest we can safely do re-open
660 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
662 yaz_log (YLOG_LOG, "%s REOPEN target=%s", m_session_str,
669 c->m_last_resultCount = 0;
670 c->m_sr_transform = 0;
672 c->m_resultSetStartPoint = 0;
673 c->m_target_idletime = m_target_idletime;
674 if (c->client(m_proxyTarget))
681 c->m_seqno = parent->m_seqno;
682 if (c->m_server && c->m_server != this)
683 c->m_server->m_client = 0;
686 yaz_log (YLOG_DEBUG, "get_client 1 %p %p", this, c);
691 else if (!c && apdu->which == Z_APDU_initRequest )
693 // anonymous sessions without cookie.
694 // if authentication is set it is NOT anonymous se we can't share them.
695 // If charset and lang negotiation is use it is NOT anonymous session too.
696 for (c = parent->m_clientPool; c; c = c->m_next)
699 assert(*c->m_prev == c);
700 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
701 && c->compare_idAuthentication(apdu)
702 && c->compare_charset(apdu)
703 && !strcmp(m_proxyTarget, c->get_hostname()))
706 yaz_log (YLOG_LOG, "%sREUSE %d %s",
707 m_session_str, parent->m_seqno, c->get_hostname());
709 c->m_seqno = parent->m_seqno;
710 assert(c->m_server == 0);
713 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
714 c->set_APDU_yazlog(1);
716 c->set_APDU_yazlog(0);
728 if (apdu->which != Z_APDU_initRequest)
730 yaz_log (YLOG_LOG, "%sno init request as first PDU", m_session_str);
735 int no_in_use = get_number_of_connections();
736 if (no_in_use >= m_max_sockets)
738 yaz_log (YLOG_LOG, "%smax sockets reached %d", m_session_str,
743 // go through list of clients - and find the lowest/oldest one.
744 Yaz_ProxyClient *c_min = 0;
746 int no_of_clients = 0;
747 if (parent->m_clientPool)
748 yaz_log (YLOG_DEBUG, "Existing sessions");
749 for (c = parent->m_clientPool; c; c = c->m_next)
751 yaz_log (YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
752 c->m_waiting, c->get_hostname(),
753 c->m_cookie ? c->m_cookie : "");
755 if (min_seq < 0 || c->m_seqno < min_seq)
757 min_seq = c->m_seqno;
761 if (no_of_clients >= parent->m_max_clients)
764 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
766 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
767 m_session_str, parent->m_max_clients, c->m_seqno);
768 if (c->m_server && c->m_server != this)
769 c->m_server->dec_ref();
773 yaz_log (YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
774 m_session_str, parent->m_max_clients,
775 c->m_seqno, parent->m_seqno, c->get_hostname());
779 c->m_cookie = xstrdup(cookie);
780 c->m_seqno = parent->m_seqno;
781 if (c->m_server && c->m_server != this)
783 c->m_server->m_client = 0;
784 c->m_server->dec_ref();
787 c->m_target_idletime = m_target_idletime;
788 c->timeout(m_target_idletime);
790 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
791 c->set_APDU_yazlog(1);
793 c->set_APDU_yazlog(0);
801 yaz_log (YLOG_LOG, "%sNEW %d %s",
802 m_session_str, parent->m_seqno, m_proxyTarget);
803 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
804 c->m_next = parent->m_clientPool;
806 c->m_next->m_prev = &c->m_next;
807 parent->m_clientPool = c;
808 c->m_prev = &parent->m_clientPool;
814 c->m_cookie = xstrdup(cookie);
816 c->m_seqno = parent->m_seqno;
818 c->m_last_resultCount = 0;
821 c->m_sr_transform = 0;
823 c->m_resultSetStartPoint = 0;
825 if (c->client(m_proxyTarget))
830 c->m_target_idletime = m_target_idletime;
833 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
834 c->set_APDU_yazlog(1);
836 c->set_APDU_yazlog(0);
838 c->set_idAuthentication(apdu);
840 yaz_log (YLOG_DEBUG, "get_client 3 %p %p", this, c);
844 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
847 for (i = 0; i<num; i++)
849 Z_DefaultDiagFormat *r;
850 Z_DiagRec *p = pp[i];
851 if (p->which != Z_DiagRec_defaultFormat)
853 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
857 r = p->u.defaultFormat;
860 case Z_DefaultDiagFormat_v2Addinfo:
861 yaz_log(YLOG_LOG, "%sError %d %s:%s",
863 *r->condition, diagbib1_str(*r->condition),
866 case Z_DefaultDiagFormat_v3Addinfo:
867 yaz_log(YLOG_LOG, "%sError %d %s:%s",
869 *r->condition, diagbib1_str(*r->condition),
876 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
878 if (!m_stylesheet_xsp || p->num_records <= 0)
880 return 0; /* no XSLT to be done ... */
883 m_stylesheet_offset = 0;
884 m_stylesheet_nprl = p;
885 m_stylesheet_apdu = apdu;
886 m_timeout_mode = timeout_xsl;
892 void Yaz_Proxy::convert_xsl_delay()
895 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
896 if (npr->which == Z_NamePlusRecord_databaseRecord)
898 Z_External *r = npr->u.databaseRecord;
899 if (r->which == Z_External_octet)
902 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
904 xmlDocPtr res, doc = xmlParseMemory(
905 (char*) r->u.octet_aligned->buf,
906 r->u.octet_aligned->len);
909 yaz_log(YLOG_LOG, "%sXSLT convert %d",
910 m_session_str, m_stylesheet_offset);
911 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
918 xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
919 m_stylesheet_nprl->records[m_stylesheet_offset]->
921 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
922 (char*) out_buf, out_len);
931 m_stylesheet_offset++;
932 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
934 m_timeout_mode = timeout_normal;
935 m_stylesheet_nprl = 0;
937 if (m_stylesheet_xsp)
938 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
940 m_stylesheet_xsp = 0;
941 timeout(m_client_idletime);
942 send_PDU_convert(m_stylesheet_apdu);
948 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
950 if (m_frontend_type[0] != -1)
953 for (i = 0; i < p->num_records; i++)
955 Z_NamePlusRecord *npr = p->records[i];
956 if (npr->which == Z_NamePlusRecord_databaseRecord)
958 Z_External *r = npr->u.databaseRecord;
959 if (r->which == Z_External_octet)
962 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
963 yaz_log (YLOG_LOG, "%sError: USEMARCON requested but not available",
967 yaz_log (YLOG_DEBUG, "%sUSEMARCON stage1=%s stage2=%s",
969 m_usemarcon_ini_stage1 ? m_usemarcon_ini_stage1 : "(none)",
970 m_usemarcon_ini_stage2 ? m_usemarcon_ini_stage2 : "(none)");
973 if (m_usemarcon->convert(m_usemarcon_ini_stage1, m_usemarcon_ini_stage2,
974 (char*) r->u.octet_aligned->buf, r->u.octet_aligned->len,
975 &converted, &convlen))
977 npr->u.databaseRecord =
978 z_ext_record_oid(odr_encode(),
987 npr->u.databaseRecord =
988 z_ext_record_oid(odr_encode(),
990 (char*) r->u.octet_aligned->buf,
991 r->u.octet_aligned->len);
998 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
999 const char *backend_charset)
1001 int sel = m_charset_converter->get_client_charset_selected();
1002 const char *client_record_charset =
1003 m_charset_converter->get_client_query_charset();
1004 if (sel && backend_charset && client_record_charset &&
1005 strcmp(backend_charset, client_record_charset))
1008 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1010 yaz_marc_t mt = yaz_marc_create();
1011 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1012 yaz_marc_iconv(mt, cd);
1013 for (i = 0; i < p->num_records; i++)
1015 Z_NamePlusRecord *npr = p->records[i];
1016 if (npr->which == Z_NamePlusRecord_databaseRecord)
1018 Z_External *r = npr->u.databaseRecord;
1019 const Odr_oid *oid = r->direct_reference;
1023 if (!oid_oidcmp(oid, yaz_oid_recsyn_sutrs))
1025 WRBUF w = wrbuf_alloc();
1027 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1028 r->u.octet_aligned->len);
1029 npr->u.databaseRecord =
1030 z_ext_record_oid(odr_encode(), oid, wrbuf_buf(w),
1034 else if (!oid_oidcmp(oid, yaz_oid_recsyn_xml))
1038 else if (r->which == Z_External_octet)
1042 if (yaz_marc_decode_buf(mt,
1043 (char*) r->u.octet_aligned->buf,
1044 r->u.octet_aligned->len,
1047 npr->u.databaseRecord =
1048 z_ext_record_oid(odr_encode(), oid, result, rlen);
1049 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1056 yaz_iconv_close(cd);
1057 yaz_marc_destroy(mt);
1061 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1062 const char *backend_charset)
1065 if (!backend_charset)
1066 backend_charset = "MARC-8";
1067 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1068 yaz_marc_t mt = yaz_marc_create();
1069 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1070 yaz_marc_iconv(mt, cd);
1071 for (i = 0; i < p->num_records; i++)
1073 Z_NamePlusRecord *npr = p->records[i];
1074 if (npr->which == Z_NamePlusRecord_databaseRecord)
1076 Z_External *r = npr->u.databaseRecord;
1077 if (r->which == Z_External_OPAC)
1079 WRBUF w = wrbuf_alloc();
1081 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1082 npr->u.databaseRecord = z_ext_record_oid(
1083 odr_encode(), yaz_oid_recsyn_xml,
1084 wrbuf_buf(w), wrbuf_len(w));
1087 else if (r->which == Z_External_octet)
1091 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1092 r->u.octet_aligned->len,
1095 npr->u.databaseRecord =
1096 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
1103 yaz_iconv_close(cd);
1104 yaz_marc_destroy(mt);
1107 void Yaz_Proxy::logtime()
1109 #if HAVE_GETTIMEOFDAY
1110 struct timeval *tv = (struct timeval*) m_time_tv;
1114 gettimeofday(&tv1, 0);
1115 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1116 (tv1.tv_usec - tv->tv_usec);
1118 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1119 diff/1000000, (diff/1000)%1000);
1126 int Yaz_Proxy::send_http_response(int code)
1128 ODR o = odr_encode();
1129 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1130 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1132 hres->version = odr_strdup(o, m_http_version);
1133 if (m_http_keepalive)
1134 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1138 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate",
1139 "Basic realm=\"YAZ Proxy\"");
1142 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1144 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1148 int r = send_GDU(gdu, &len);
1149 m_bytes_sent += len;
1150 m_bw_stat.add_bytes(len);
1153 recv_GDU_more(true);
1158 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1160 ODR o = odr_encode();
1161 const char *ctype = "text/xml";
1162 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1163 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1165 hres->version = odr_strdup(o, m_http_version);
1166 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1167 if (m_http_keepalive)
1168 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1171 if (http_code == 401)
1172 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1174 static Z_SOAP_Handler soap_handlers[2] = {
1176 {"http://www.loc.gov/zing/srw/", 0,
1177 (Z_SOAP_fun) yaz_srw_codec},
1182 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1183 soap_package->which = Z_SOAP_generic;
1184 soap_package->u.generic =
1185 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1186 soap_package->u.generic->no = 0;
1187 soap_package->u.generic->ns = soap_handlers[0].ns;
1188 soap_package->u.generic->p = (void *) srw_pdu;
1189 soap_package->ns = m_soap_ns;
1190 z_soap_codec_enc_xsl(o, &soap_package,
1191 &hres->content_buf, &hres->content_len,
1192 soap_handlers, 0, m_s2z_stylesheet);
1193 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1195 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1199 int r = send_GDU(gdu, &len);
1200 m_bytes_sent += len;
1201 m_bw_stat.add_bytes(len);
1204 recv_GDU_more(true);
1209 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1211 ODR o = odr_encode();
1212 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1213 odr_malloc(o, sizeof(*diagnostic));
1214 int num_diagnostic = 1;
1215 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1216 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1219 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1220 Z_DefaultDiagFormat *ddf)
1222 int bib1_code = *ddf->condition;
1223 if (bib1_code == 109)
1225 srw_res->num_diagnostics = 1;
1226 srw_res->diagnostics = (Z_SRW_diagnostic *)
1227 odr_malloc(o, sizeof(*srw_res->diagnostics));
1228 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1229 yaz_diag_bib1_to_srw(*ddf->condition),
1234 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1236 ODR o = odr_encode();
1237 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1238 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1240 srw_res->numberOfRecords = odr_intdup (o, hits);
1241 if (records && records->which == Z_Records_DBOSD)
1243 srw_res->num_records =
1244 records->u.databaseOrSurDiagnostics->num_records;
1246 srw_res->records = (Z_SRW_record *)
1247 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1248 for (i = 0; i < srw_res->num_records; i++)
1250 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1251 if (npr->which != Z_NamePlusRecord_databaseRecord)
1253 srw_res->records[i].recordSchema = "diagnostic";
1254 srw_res->records[i].recordPacking = m_s2z_packing;
1255 srw_res->records[i].recordData_buf = "67";
1256 srw_res->records[i].recordData_len = 2;
1257 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1260 Z_External *r = npr->u.databaseRecord;
1262 if (r->which == Z_External_octet
1263 && !oid_oidcmp(r->direct_reference, yaz_oid_recsyn_xml))
1265 srw_res->records[i].recordSchema = m_schema;
1266 srw_res->records[i].recordPacking = m_s2z_packing;
1267 srw_res->records[i].recordData_buf = (char*)
1268 r->u.octet_aligned->buf;
1269 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1270 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1274 srw_res->records[i].recordSchema = "diagnostic";
1275 srw_res->records[i].recordPacking = m_s2z_packing;
1276 srw_res->records[i].recordData_buf = "67";
1277 srw_res->records[i].recordData_len = 2;
1278 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1282 if (records && records->which == Z_Records_NSD)
1285 http_code = z_to_srw_diag(odr_encode(), srw_res,
1286 records->u.nonSurrogateDiagnostic);
1288 return send_http_response(http_code);
1290 return send_srw_response(srw_pdu);
1294 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1295 int num_diagnostics, int http_code /* = 200 */)
1297 ODR o = odr_encode();
1298 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1299 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1301 srw_res->num_diagnostics = num_diagnostics;
1302 srw_res->diagnostics = diagnostics;
1303 return send_srw_response(srw_pdu, http_code);
1306 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1307 int num_diagnostics)
1309 Yaz_ProxyConfig *cfg = check_reconfigure();
1313 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1314 m_s2z_database, &len);
1317 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1318 Z_SRW_explainResponse *er = res->u.explain_response;
1320 er->record.recordData_buf = b;
1321 er->record.recordData_len = len;
1322 er->record.recordPacking = m_s2z_packing;
1323 er->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
1325 er->diagnostics = diagnostics;
1326 er->num_diagnostics = num_diagnostics;
1327 return send_srw_response(res);
1330 return send_http_response(404);
1333 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1337 if (apdu->which == Z_APDU_initResponse)
1339 Z_InitResponse *res = apdu->u.initResponse;
1340 if (*res->result == 0)
1342 send_to_srw_client_error(3, 0);
1344 else if (!m_s2z_search_apdu)
1346 send_srw_explain_response(0, 0);
1350 handle_incoming_Z_PDU(m_s2z_search_apdu);
1353 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1355 m_s2z_search_apdu = 0;
1356 Z_SearchResponse *res = apdu->u.searchResponse;
1357 m_s2z_hit_count = *res->resultCount;
1358 if (res->records && res->records->which == Z_Records_NSD)
1360 send_to_srw_client_ok(0, res->records, 1);
1362 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1365 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1367 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1369 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1371 *pr->numberOfRecordsRequested =
1372 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1374 handle_incoming_Z_PDU(m_s2z_present_apdu);
1378 m_s2z_present_apdu = 0;
1379 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1382 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1385 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1387 m_s2z_present_apdu = 0;
1388 Z_PresentResponse *res = apdu->u.presentResponse;
1389 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1395 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1396 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1398 int r = send_Z_PDU(apdu, &len);
1399 m_bytes_sent += len;
1400 m_bw_stat.add_bytes(len);
1407 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1409 int kill_session = 0;
1410 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1413 *new_id = m_referenceId;
1415 if (apdu->which == Z_APDU_searchResponse)
1417 Z_SearchResponse *sr = apdu->u.searchResponse;
1418 Z_Records *p = sr->records;
1419 if (p && p->which == Z_Records_NSD)
1421 Z_DiagRec dr, *dr_p = &dr;
1422 dr.which = Z_DiagRec_defaultFormat;
1423 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1425 *sr->searchStatus = 0;
1426 display_diagrecs(&dr_p, 1);
1430 if (p && p->which == Z_Records_DBOSD)
1434 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1437 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1438 if (m_marcxml_mode == marcxml)
1439 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1442 convert_records_charset(p->u.databaseOrSurDiagnostics,
1444 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1448 if (sr->resultCount)
1450 yaz_log(YLOG_LOG, "%s%d hits", m_session_str,
1452 if (*sr->resultCount < 0)
1454 m_flag_invalid_session = 1;
1457 *sr->searchStatus = 0;
1459 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1460 *sr->resultCount = 0;
1465 else if (apdu->which == Z_APDU_presentResponse)
1467 Z_PresentResponse *sr = apdu->u.presentResponse;
1468 Z_Records *p = sr->records;
1469 if (p && p->which == Z_Records_NSD)
1471 Z_DiagRec dr, *dr_p = &dr;
1472 dr.which = Z_DiagRec_defaultFormat;
1473 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1474 if (*sr->presentStatus == Z_PresentStatus_success)
1475 *sr->presentStatus = Z_PresentStatus_failure;
1476 display_diagrecs(&dr_p, 1);
1478 if (p && p->which == Z_Records_DBOSD)
1482 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1485 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1486 if (m_marcxml_mode == marcxml)
1487 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1490 convert_records_charset(p->u.databaseOrSurDiagnostics,
1492 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1496 else if (apdu->which == Z_APDU_initResponse)
1498 //Get and check negotiation record
1499 //from init response.
1500 handle_charset_lang_negotiation(apdu);
1502 if (m_initRequest_options)
1505 (Odr_bitmask *)odr_malloc(odr_encode(),
1506 sizeof(Odr_bitmask));
1507 ODR_MASK_ZERO(nopt);
1510 for (i = 0; i<24; i++)
1511 if (ODR_MASK_GET(m_initRequest_options, i) &&
1512 ODR_MASK_GET(apdu->u.initResponse->options, i))
1513 ODR_MASK_SET(nopt, i);
1514 apdu->u.initResponse->options = nopt;
1516 if (m_initRequest_version)
1518 Z_ProtocolVersion *nopt =
1519 (Odr_bitmask *)odr_malloc(odr_encode(),
1520 sizeof(Odr_bitmask));
1521 ODR_MASK_ZERO(nopt);
1524 for (i = 0; i<8; i++)
1525 if (ODR_MASK_GET(m_initRequest_version, i) &&
1526 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1527 ODR_MASK_SET(nopt, i);
1528 apdu->u.initResponse->protocolVersion = nopt;
1530 apdu->u.initResponse->preferredMessageSize =
1531 odr_intdup(odr_encode(),
1532 m_client->m_initResponse_preferredMessageSize >
1533 m_initRequest_preferredMessageSize ?
1534 m_initRequest_preferredMessageSize :
1535 m_client->m_initResponse_preferredMessageSize);
1536 apdu->u.initResponse->maximumRecordSize =
1537 odr_intdup(odr_encode(),
1538 m_client->m_initResponse_maximumRecordSize >
1539 m_initRequest_maximumRecordSize ?
1540 m_initRequest_maximumRecordSize :
1541 m_client->m_initResponse_maximumRecordSize);
1544 int r = send_PDU_convert(apdu);
1551 m_parent->pre_init();
1556 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1558 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1560 odr_reset(m_idAuthentication_odr);
1561 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1562 m_idAuthentication_ber_buf =
1563 odr_getbuf(m_idAuthentication_odr,
1564 &m_idAuthentication_ber_size, 0);
1567 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1572 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1574 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1575 ODR odr = odr_createmem(ODR_ENCODE);
1577 z_IdAuthentication(odr, &t, 1, 0);
1579 char *buf = odr_getbuf(odr, &sz, 0);
1580 if (buf && m_idAuthentication_ber_buf
1581 && sz == m_idAuthentication_ber_size
1582 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1588 if (!buf && !m_idAuthentication_ber_buf)
1593 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1596 const char *apdu_name_tmp = apdu_name(apdu);
1597 int r = send_Z_PDU(apdu, &len);
1598 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1599 yaz_log (YLOG_LOG, "%sSending %s to %s %d bytes",
1601 apdu_name_tmp, get_hostname(), len);
1602 m_bytes_sent += len;
1606 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1608 if (apdu->which == Z_APDU_presentRequest)
1610 Z_PresentRequest *pr = apdu->u.presentRequest;
1611 int toget = *pr->numberOfRecordsRequested;
1612 int start = *pr->resultSetStartPoint;
1614 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1615 pr->resultSetId, start, toget);
1617 if (*m_parent->m_optimize == '0')
1620 if (!m_client->m_last_resultSetId)
1622 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1623 new_apdu->u.presentResponse->records =
1624 create_nonSurrogateDiagnostics(
1626 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1628 send_to_client(new_apdu);
1631 if (start < 1 || toget < 0)
1633 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1634 new_apdu->u.presentResponse->records =
1635 create_nonSurrogateDiagnostics(
1637 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1639 send_to_client(new_apdu);
1642 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1644 if (start+toget-1 > m_client->m_last_resultCount)
1646 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1647 new_apdu->u.presentResponse->records =
1648 create_nonSurrogateDiagnostics(
1650 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1652 send_to_client(new_apdu);
1655 Z_NamePlusRecordList *npr;
1657 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1658 m_session_str, start, toget, yaz_z3950oid_to_str(
1659 pr->preferredRecordSyntax, &oclass));
1661 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1662 pr->preferredRecordSyntax,
1663 pr->recordComposition))
1665 yaz_log (YLOG_LOG, "%sReturned cached records for present request",
1667 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1668 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1670 new_apdu->u.presentResponse->numberOfRecordsReturned
1671 = odr_intdup(odr_encode(), toget);
1673 new_apdu->u.presentResponse->records = (Z_Records*)
1674 odr_malloc(odr_encode(), sizeof(Z_Records));
1675 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1676 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1677 new_apdu->u.presentResponse->nextResultSetPosition =
1678 odr_intdup(odr_encode(), start+toget);
1680 send_to_client(new_apdu);
1686 if (apdu->which != Z_APDU_searchRequest)
1688 Z_SearchRequest *sr = apdu->u.searchRequest;
1689 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1690 Yaz_Z_Databases this_databases;
1692 this_databases.set(sr->num_databaseNames, (const char **)
1695 this_query->set_Z_Query(sr->query);
1697 // Check for non-negative piggyback params.
1698 if (*sr->smallSetUpperBound < 0
1699 || *sr->largeSetLowerBound < 0
1700 || *sr->mediumSetPresentNumber < 0)
1702 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1703 // Not a present request.. But can't find better diagnostic
1704 new_apdu->u.searchResponse->records =
1705 create_nonSurrogateDiagnostics(
1707 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1708 send_to_client(new_apdu);
1712 char query_str[4096];
1713 this_query->print(query_str, sizeof(query_str)-1);
1714 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1716 if (*m_parent->m_optimize != '0' &&
1717 m_client->m_last_ok && m_client->m_last_query &&
1718 m_client->m_last_query->match(this_query) &&
1719 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1720 m_client->m_last_databases.match(this_databases))
1723 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1724 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1726 Z_NamePlusRecordList *npr;
1727 int toget = *sr->mediumSetPresentNumber;
1728 Z_RecordComposition *comp = 0;
1730 if (toget > m_client->m_last_resultCount)
1731 toget = m_client->m_last_resultCount;
1733 if (sr->mediumSetElementSetNames)
1735 comp = (Z_RecordComposition *)
1736 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1737 comp->which = Z_RecordComp_simple;
1738 comp->u.simple = sr->mediumSetElementSetNames;
1741 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1742 sr->preferredRecordSyntax, comp))
1744 yaz_log (YLOG_LOG, "%sReturned cached records for medium set",
1746 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1747 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1748 new_apdu->u.searchResponse->resultCount =
1749 &m_client->m_last_resultCount;
1751 new_apdu->u.searchResponse->numberOfRecordsReturned
1752 = odr_intdup(odr_encode(), toget);
1754 new_apdu->u.searchResponse->presentStatus =
1755 odr_intdup(odr_encode(), Z_PresentStatus_success);
1756 new_apdu->u.searchResponse->records = (Z_Records*)
1757 odr_malloc(odr_encode(), sizeof(Z_Records));
1758 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1759 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1760 new_apdu->u.searchResponse->nextResultSetPosition =
1761 odr_intdup(odr_encode(), toget+1);
1762 send_to_client(new_apdu);
1768 // send present request (medium size)
1769 yaz_log (YLOG_LOG, "%sOptimizing search for medium set",
1772 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1773 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1774 pr->referenceId = sr->referenceId;
1775 pr->resultSetId = sr->resultSetName;
1776 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1777 *pr->numberOfRecordsRequested = toget;
1778 pr->recordComposition = comp;
1779 m_client->m_sr_transform = 1;
1783 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1784 m_client->m_last_resultCount <= 0)
1786 // large set. Return pseudo-search response immediately
1787 yaz_log (YLOG_LOG, "%sOptimizing search for large set",
1789 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1790 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1791 new_apdu->u.searchResponse->resultCount =
1792 &m_client->m_last_resultCount;
1793 send_to_client(new_apdu);
1798 Z_NamePlusRecordList *npr;
1799 int toget = m_client->m_last_resultCount;
1800 Z_RecordComposition *comp = 0;
1802 // send a present request (small set)
1804 if (sr->smallSetElementSetNames)
1806 comp = (Z_RecordComposition *)
1807 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1808 comp->which = Z_RecordComp_simple;
1809 comp->u.simple = sr->smallSetElementSetNames;
1812 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1813 sr->preferredRecordSyntax, comp))
1815 yaz_log (YLOG_LOG, "%sReturned cached records for small set",
1817 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1818 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1819 new_apdu->u.searchResponse->resultCount =
1820 &m_client->m_last_resultCount;
1822 new_apdu->u.searchResponse->numberOfRecordsReturned
1823 = odr_intdup(odr_encode(), toget);
1825 new_apdu->u.searchResponse->presentStatus =
1826 odr_intdup(odr_encode(), Z_PresentStatus_success);
1827 new_apdu->u.searchResponse->records = (Z_Records*)
1828 odr_malloc(odr_encode(), sizeof(Z_Records));
1829 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1830 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1831 new_apdu->u.searchResponse->nextResultSetPosition =
1832 odr_intdup(odr_encode(), toget+1);
1833 send_to_client(new_apdu);
1838 yaz_log (YLOG_LOG, "%sOptimizing search for small set",
1840 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1841 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1842 pr->referenceId = sr->referenceId;
1843 pr->resultSetId = sr->resultSetName;
1844 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1845 *pr->numberOfRecordsRequested = toget;
1846 pr->recordComposition = comp;
1847 m_client->m_sr_transform = 1;
1852 else // query doesn't match
1854 delete m_client->m_last_query;
1855 m_client->m_last_query = this_query;
1856 m_client->m_last_ok = 0;
1857 m_client->m_cache.clear();
1858 m_client->m_resultSetStartPoint = 0;
1860 xfree (m_client->m_last_resultSetId);
1861 m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
1863 m_client->m_last_databases.set(sr->num_databaseNames,
1864 (const char **) sr->databaseNames);
1870 void Yaz_Proxy::inc_request_no()
1873 char *cp = m_session_str + strlen(m_session_str)-1;
1876 while (*cp && *cp != ' ')
1879 sprintf(cp+1, "%d ", m_request_no);
1882 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
1886 m_bytes_recv += len;
1888 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1889 yaz_log (YLOG_LOG, "%sReceiving %s from client %d bytes",
1890 m_session_str, gdu_name(apdu), len);
1893 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
1894 if (apdu->which == Z_GDU_Z3950
1895 && apdu->u.z3950->which == Z_APDU_searchRequest)
1897 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
1898 if (req->query && req->query->which == Z_Query_type_1)
1900 Z_RPNQuery *rpnquery = req->query->u.type_1;
1901 if (rpnquery->attributeSetId)
1903 rpnquery->attributeSetId[0] = -2;
1904 rpnquery->attributeSetId[1] = -1;
1905 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
1911 #if HAVE_GETTIMEOFDAY
1912 gettimeofday((struct timeval *) m_time_tv, 0);
1914 m_bw_stat.add_bytes(len);
1915 m_pdu_stat.add_bytes(1);
1917 GDU *gdu = new GDU(apdu);
1919 if (gdu->get() == 0)
1922 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
1927 m_in_queue.enqueue(gdu);
1928 recv_GDU_more(false);
1931 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
1933 if (z_gdu->which == Z_GDU_HTTP_Request)
1935 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
1936 const char *x_forwarded_for =
1937 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
1938 if (x_forwarded_for)
1941 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
1942 sprintf(m_peername, "tcp:%s", x_forwarded_for);
1944 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
1946 if (m_log_mask & PROXY_LOG_IP_CLIENT)
1947 sprintf(m_session_str, "%ld:%d %.80s %d ",
1948 (long) time(0), m_session_no, m_peername, m_request_no);
1950 sprintf(m_session_str, "%ld:%d %d ",
1951 (long) time(0), m_session_no, m_request_no);
1956 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
1959 m_parent->m_connect.cleanup(false);
1960 m_parent->m_connect.add_connect(m_peername);
1962 int connect_total = m_parent->m_connect.get_total(m_peername);
1963 int max_connect = m_parent->m_max_connect;
1965 if (max_connect && connect_total > max_connect)
1967 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
1968 m_session_str, connect_total, max_connect);
1973 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
1976 int limit_connect = m_parent->m_limit_connect;
1978 reduce = connect_total / limit_connect;
1983 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
1985 HTTP_Forwarded(gdu->get());
1989 if (m_request_no == 1)
1993 connect_stat(block, reduce);
1997 m_timeout_mode = timeout_busy;
2003 int bw_total = m_bw_stat.get_total();
2004 int pdu_total = m_pdu_stat.get_total();
2005 int search_total = m_search_stat.get_total();
2007 assert(m_timeout_mode == timeout_busy);
2008 assert(m_timeout_gdu == 0);
2011 reduce += search_total / m_search_max;
2013 reduce += (bw_total/m_bw_max);
2016 if (pdu_total > m_pdu_max)
2018 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2019 reduce = (reduce > nreduce) ? reduce : nreduce;
2025 /* uncomment to force a big reduce */
2026 m_timeout_mode = timeout_reduce;
2027 m_timeout_gdu = gdu;
2028 timeout(3); // call us reduce seconds later
2033 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2034 m_session_str, reduce, bw_total, pdu_total, search_total,
2035 m_bw_max, m_pdu_max, m_search_max);
2037 m_timeout_mode = timeout_reduce;
2038 m_timeout_gdu = gdu;
2039 timeout(reduce); // call us reduce seconds later
2042 recv_GDU_normal(gdu);
2045 void Yaz_Proxy::recv_GDU_more(bool normal)
2048 if (normal && m_timeout_mode == timeout_busy)
2049 m_timeout_mode = timeout_normal;
2050 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2052 m_timeout_mode = timeout_busy;
2060 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2063 gdu->move_away_gdu(odr_decode(), &apdu);
2066 if (apdu->which == Z_GDU_Z3950)
2067 handle_incoming_Z_PDU(apdu->u.z3950);
2068 else if (apdu->which == Z_GDU_HTTP_Request)
2069 handle_incoming_HTTP(apdu->u.HTTP_Request);
2072 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2074 if (m_max_record_retrieve)
2076 if (apdu->which == Z_APDU_presentRequest)
2078 Z_PresentRequest *pr = apdu->u.presentRequest;
2079 if (pr->numberOfRecordsRequested &&
2080 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2081 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2086 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2088 if (apdu->which == Z_APDU_initRequest)
2090 if (m_initRequest_options &&
2091 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2092 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2094 // There is no negotiation proposal from
2095 // client's side. OK. The proxy negotiation
2097 Z_InitRequest *initRequest = apdu->u.initRequest;
2098 Z_OtherInformation **otherInfo;
2099 Z_OtherInformationUnit *oi;
2100 get_otherInfoAPDU(apdu, &otherInfo);
2101 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2104 ODR_MASK_SET(initRequest->options,
2105 Z_Options_negotiationModel);
2106 oi->which = Z_OtherInfo_externallyDefinedInfo;
2107 oi->information.externallyDefinedInfo =
2108 yaz_set_proposal_charneg(odr_encode(),
2109 (const char**)&m_proxy_negotiation_charset,
2110 m_proxy_negotiation_charset ? 1:0,
2111 (const char**)&m_proxy_negotiation_lang,
2112 m_proxy_negotiation_lang ? 1:0,
2116 else if (m_initRequest_options &&
2117 ODR_MASK_GET(m_initRequest_options,
2118 Z_Options_negotiationModel) &&
2119 m_charset_converter->get_target_query_charset())
2121 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2123 m_charset_converter->get_target_query_charset());
2124 Z_InitRequest *initRequest = apdu->u.initRequest;
2125 Z_CharSetandLanguageNegotiation *negotiation =
2126 yaz_get_charneg_record (initRequest->otherInfo);
2128 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2130 NMEM nmem = nmem_create();
2131 char **charsets = 0;
2132 int num_charsets = 0;
2136 yaz_get_proposal_charneg (nmem, negotiation,
2137 &charsets, &num_charsets,
2138 &langs, &num_langs, &selected);
2140 for (i = 0; i<num_charsets; i++)
2141 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2143 for (i = 0; i<num_langs; i++)
2144 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2147 const char *t_charset =
2148 m_charset_converter->get_target_query_charset();
2149 // sweep through charsets and pick the first supported
2151 for (i = 0; i<num_charsets; i++)
2153 const char *c_charset = charsets[i];
2154 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2157 if (i != num_charsets)
2159 // got one .. set up ODR for reverse direction
2160 const char *c_charset = charsets[i];
2161 odr_set_charset(odr_encode(), c_charset, t_charset);
2162 m_charset_converter->set_client_query_charset(c_charset);
2163 m_charset_converter->set_client_charset_selected(selected);
2166 ODR_MASK_CLEAR(m_initRequest_options,
2167 Z_Options_negotiationModel);
2168 yaz_del_charneg_record(&initRequest->otherInfo);
2172 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2176 else if (m_charset_converter->get_target_query_charset() &&
2177 m_proxy_negotiation_default_charset)
2179 m_charset_converter->
2180 set_client_query_charset(m_proxy_negotiation_default_charset);
2183 else if (apdu->which == Z_APDU_initResponse)
2185 Z_InitResponse *initResponse = apdu->u.initResponse;
2186 Z_OtherInformation **otherInfo;
2187 get_otherInfoAPDU(apdu, &otherInfo);
2189 Z_CharSetandLanguageNegotiation *charneg = 0;
2191 if (otherInfo && *otherInfo &&
2192 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2193 && (charneg = yaz_get_charneg_record(*otherInfo)))
2199 yaz_get_response_charneg(m_referenceId_mem, charneg,
2200 &charset, &lang, &selected);
2202 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2203 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2205 if (m_initRequest_options &&
2206 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2208 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2211 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2213 // negotiation-charset, negotiation-lang
2214 // elements of config file in use.
2216 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2219 // clear negotiation option.
2220 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2222 // Delete negotiation (charneg-3) entry.
2223 yaz_del_charneg_record(otherInfo);
2228 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2230 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2233 else if (m_charset_converter->get_client_query_charset())
2235 Z_OtherInformation **otherInfo;
2236 Z_OtherInformationUnit *oi;
2237 get_otherInfoAPDU(apdu, &otherInfo);
2238 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2241 ODR_MASK_SET(initResponse->options,
2242 Z_Options_negotiationModel);
2243 if (m_initRequest_options)
2244 ODR_MASK_SET(m_initRequest_options,
2245 Z_Options_negotiationModel);
2247 oi->which = Z_OtherInfo_externallyDefinedInfo;
2248 oi->information.externallyDefinedInfo =
2249 yaz_set_response_charneg(
2251 m_charset_converter->get_client_query_charset(),
2253 m_charset_converter->get_client_charset_selected());
2260 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2262 const char *addinfo)
2264 Z_Records *rec = (Z_Records *)
2265 odr_malloc (odr, sizeof(*rec));
2267 odr_malloc (odr, sizeof(*err));
2268 Z_DiagRec *drec = (Z_DiagRec *)
2269 odr_malloc (odr, sizeof(*drec));
2270 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2271 odr_malloc (odr, sizeof(*dr));
2273 rec->which = Z_Records_NSD;
2274 rec->u.nonSurrogateDiagnostic = dr;
2275 dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
2276 dr->condition = err;
2277 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2278 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2282 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2284 if (apdu->which == Z_APDU_searchRequest &&
2285 apdu->u.searchRequest->query &&
2286 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2287 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2289 Z_RPNQuery *rpnquery = 0;
2290 Z_SearchRequest *sr = apdu->u.searchRequest;
2293 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2294 sr->query->u.type_104->u.cql);
2296 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2297 &rpnquery, odr_encode(),
2300 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2303 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2304 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2306 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2307 new_apdu->u.searchResponse->records =
2308 create_nonSurrogateDiagnostics(odr_encode(),
2309 yaz_diag_srw_to_bib1(r),
2311 *new_apdu->u.searchResponse->searchStatus = 0;
2313 send_to_client(new_apdu);
2319 sr->query->which = Z_Query_type_1;
2320 sr->query->u.type_1 = rpnquery;
2327 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2329 if (apdu->which == Z_APDU_searchRequest &&
2330 apdu->u.searchRequest->query)
2332 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2333 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2336 m_charset_converter->set_client_query_charset("UTF-8");
2337 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2338 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2345 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2347 if (apdu->which == Z_APDU_searchRequest)
2349 Z_SearchRequest *sr = apdu->u.searchRequest;
2353 Yaz_ProxyConfig *cfg = check_reconfigure();
2355 err = cfg->check_query(odr_encode(), m_default_target,
2356 sr->query, &addinfo);
2359 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2361 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2362 new_apdu->u.searchResponse->records =
2363 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2364 *new_apdu->u.searchResponse->searchStatus = 0;
2366 send_to_client(new_apdu);
2374 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2376 if (apdu->which != Z_APDU_initRequest)
2377 return 1; // pass if no init request
2378 Z_InitRequest *req = apdu->u.initRequest;
2380 Yaz_ProxyConfig *cfg = check_reconfigure();
2382 return 1; // pass if no config
2385 if (req->idAuthentication == 0)
2387 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2390 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2392 ret = cfg->client_authentication(
2394 req->idAuthentication->u.idPass->userId,
2395 req->idAuthentication->u.idPass->groupId,
2396 req->idAuthentication->u.idPass->password,
2399 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2401 char user[64], pass[64];
2404 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2405 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2409 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2414 int Yaz_Proxy::handle_global_authentication(Z_APDU *apdu)
2416 if (apdu->which != Z_APDU_initRequest)
2417 return 1; // pass if no init request
2418 Z_InitRequest *req = apdu->u.initRequest;
2420 Yaz_ProxyConfig *cfg = check_reconfigure();
2422 return 1; // pass if no config
2425 if (req->idAuthentication == 0)
2427 ret = cfg->global_client_authentication(0, 0, 0,
2430 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2432 ret = cfg->global_client_authentication(
2433 req->idAuthentication->u.idPass->userId,
2434 req->idAuthentication->u.idPass->groupId,
2435 req->idAuthentication->u.idPass->password,
2438 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2440 char user[64], pass[64];
2443 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2444 ret = cfg->global_client_authentication(user, 0, pass,
2448 ret = cfg->global_client_authentication(0, 0, 0, m_peername);
2452 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2454 m_marcxml_mode = none;
2455 if (apdu->which == Z_APDU_searchRequest)
2457 Z_SearchRequest *sr = apdu->u.searchRequest;
2460 Yaz_ProxyConfig *cfg = check_reconfigure();
2462 Z_RecordComposition rc_temp, *rc = 0;
2463 if (sr->smallSetElementSetNames)
2465 rc_temp.which = Z_RecordComp_simple;
2466 rc_temp.u.simple = sr->smallSetElementSetNames;
2470 if (sr->preferredRecordSyntax)
2471 oid_oidcpy(m_frontend_type, sr->preferredRecordSyntax);
2473 m_frontend_type[0] = -1;
2475 char *stylesheet_name = 0;
2477 err = cfg->check_syntax(odr_encode(),
2479 sr->preferredRecordSyntax, rc,
2480 &addinfo, &stylesheet_name, &m_schema,
2481 &m_backend_type, &m_backend_charset,
2482 &m_usemarcon_ini_stage1,
2483 &m_usemarcon_ini_stage2);
2484 if (stylesheet_name)
2486 m_parent->low_socket_close();
2489 if (m_stylesheet_xsp)
2490 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2491 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2494 m_stylesheet_offset = 0;
2495 xfree(stylesheet_name);
2497 m_parent->low_socket_open();
2501 sr->smallSetElementSetNames = 0;
2502 sr->mediumSetElementSetNames = 0;
2503 m_marcxml_mode = marcxml;
2504 sr->preferredRecordSyntax =
2505 yaz_string_to_oid_odr(
2506 yaz_oid_std(), CLASS_RECSYN,
2507 m_backend_type ? m_backend_type : "usmarc",
2512 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2514 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2515 new_apdu->u.searchResponse->records =
2516 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2517 *new_apdu->u.searchResponse->searchStatus = 0;
2519 send_to_client(new_apdu);
2523 else if (m_backend_type)
2525 sr->preferredRecordSyntax =
2526 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN,
2527 m_backend_type, odr_encode());
2530 else if (apdu->which == Z_APDU_presentRequest)
2532 Z_PresentRequest *pr = apdu->u.presentRequest;
2535 Yaz_ProxyConfig *cfg = check_reconfigure();
2537 if (pr->preferredRecordSyntax)
2538 oid_oidcpy(m_frontend_type, pr->preferredRecordSyntax);
2540 m_frontend_type[0] = -1;
2542 char *stylesheet_name = 0;
2544 err = cfg->check_syntax(odr_encode(), m_default_target,
2545 pr->preferredRecordSyntax,
2546 pr->recordComposition,
2547 &addinfo, &stylesheet_name, &m_schema,
2548 &m_backend_type, &m_backend_charset,
2549 &m_usemarcon_ini_stage1,
2550 &m_usemarcon_ini_stage2
2552 if (stylesheet_name)
2554 m_parent->low_socket_close();
2557 if (m_stylesheet_xsp)
2558 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2559 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2562 m_stylesheet_offset = 0;
2563 xfree(stylesheet_name);
2565 m_parent->low_socket_open();
2569 pr->recordComposition = 0;
2570 m_marcxml_mode = marcxml;
2572 pr->preferredRecordSyntax =
2573 yaz_string_to_oid_odr(
2574 yaz_oid_std(), CLASS_RECSYN,
2575 m_backend_type ? m_backend_type : "usmarc",
2580 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2582 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2583 new_apdu->u.presentResponse->records =
2584 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2585 *new_apdu->u.presentResponse->presentStatus =
2586 Z_PresentStatus_failure;
2588 send_to_client(new_apdu);
2592 else if (m_backend_type)
2594 pr->preferredRecordSyntax =
2595 yaz_string_to_oid_odr(yaz_oid_std(),
2596 CLASS_RECSYN, m_backend_type,
2603 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2607 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2608 odr_malloc(o, sizeof(Z_ElementSetNames));
2609 esn->which = Z_ElementSetNames_generic;
2610 esn->u.generic = odr_strdup(o, schema);
2614 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2617 Yaz_ProxyConfig *cfg = check_reconfigure();
2619 t = cfg->get_explain_name(db, backend_db);
2621 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2628 xfree(m_default_target);
2629 m_default_target = xstrdup(t);
2633 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2636 if (strcmp(hreq->method, "GET"))
2638 if (hreq->path[0] != '/')
2640 const char *cp = hreq->path;
2643 if (*cp == '/' && strchr("/.", cp[1]))
2648 Yaz_ProxyConfig *cfg = check_reconfigure();
2650 if (!cfg->get_file_access_info(hreq->path+1))
2653 const char *fname = hreq->path+1;
2654 if (stat(fname, &sbuf))
2656 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2660 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2662 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2665 if (sbuf.st_size > (off_t) 1000000)
2667 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2672 ODR o = odr_encode();
2674 const char *ctype = cfg->check_mime_type(fname);
2675 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2676 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2678 hres->version = odr_strdup(o, m_http_version);
2679 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2680 if (m_http_keepalive)
2681 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2685 hres->content_len = sbuf.st_size;
2686 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2687 FILE *f = fopen(fname, "rb");
2690 fread(hres->content_buf, 1, hres->content_len, f);
2697 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2699 yaz_log (YLOG_LOG, "%sSending file %s to client", m_session_str,
2703 send_GDU(gdu, &len);
2704 recv_GDU_more(true);
2708 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2712 odr_destroy(m_s2z_odr_init);
2715 if (m_s2z_odr_search)
2717 odr_destroy(m_s2z_odr_search);
2718 m_s2z_odr_search = 0;
2721 m_http_keepalive = 0;
2723 if (!strcmp(hreq->version, "1.0"))
2725 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2726 if (v && !strcmp(v, "Keep-Alive"))
2727 m_http_keepalive = 1;
2729 m_http_keepalive = 0;
2730 m_http_version = "1.0";
2734 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2735 if (v && !strcmp(v, "close"))
2736 m_http_keepalive = 0;
2738 m_http_keepalive = 1;
2739 m_http_version = "1.1";
2742 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
2743 char authorization_str[255];
2744 *authorization_str = '\0';
2745 if (a && strncasecmp(a, "Basic ", 6) == 0)
2746 base64_decode(a + 6, authorization_str, 254);
2748 Z_SRW_PDU *srw_pdu = 0;
2749 Z_SOAP *soap_package = 0;
2751 Z_SRW_diagnostic *diagnostic = 0;
2752 int num_diagnostic = 0;
2754 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
2756 if (file_access(hreq))
2760 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2762 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
2763 &charset, &diagnostic, &num_diagnostic) == 0)
2765 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
2766 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
2767 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
2768 m_s2z_init_apdu = 0;
2769 m_s2z_search_apdu = 0;
2770 m_s2z_present_apdu = 0;
2772 m_s2z_stylesheet = 0;
2774 Z_IdAuthentication *auth = NULL;
2775 if (srw_pdu->username && srw_pdu->password)
2777 yaz_log(YLOG_LOG, "username/password: %s/%s\n",
2778 srw_pdu->username, srw_pdu->password);
2779 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2780 auth->which = Z_IdAuthentication_idPass;
2781 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2782 auth->u.idPass->groupId = NULL;
2783 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, srw_pdu->password);
2784 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, srw_pdu->username);
2788 if (*authorization_str)
2790 yaz_log(YLOG_LOG, "authorization_str present: %s\n", authorization_str);
2791 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
2792 auth->which = Z_IdAuthentication_idPass;
2793 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
2794 auth->u.idPass->groupId = NULL;
2795 char *p = strchr(authorization_str, ':');
2800 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
2802 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
2806 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
2809 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
2811 const char *backend_db = srw_req->database;
2812 srw_get_client(srw_req->database, &backend_db);
2814 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
2815 // recordXPath unsupported.
2816 if (srw_req->recordXPath)
2818 yaz_add_srw_diagnostic(odr_decode(),
2819 &diagnostic, &num_diagnostic,
2823 if (srw_req->sort_type != Z_SRW_sort_type_none)
2825 yaz_add_srw_diagnostic(odr_decode(),
2826 &diagnostic, &num_diagnostic,
2830 if (srw_req->stylesheet)
2832 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
2834 // set packing for response records ..
2835 if (srw_req->recordPacking &&
2836 !strcmp(srw_req->recordPacking, "xml"))
2837 m_s2z_packing = Z_SRW_recordPacking_XML;
2839 m_s2z_packing = Z_SRW_recordPacking_string;
2843 Z_SRW_PDU *srw_pdu =
2844 yaz_srw_get(odr_encode(),
2845 Z_SRW_searchRetrieve_response);
2846 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
2848 srw_res->diagnostics = diagnostic;
2849 srw_res->num_diagnostics = num_diagnostic;
2850 send_srw_response(srw_pdu);
2854 // prepare search PDU
2855 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
2856 Z_APDU_searchRequest);
2857 Z_SearchRequest *z_searchRequest =
2858 m_s2z_search_apdu->u.searchRequest;
2860 z_searchRequest->num_databaseNames = 1;
2861 z_searchRequest->databaseNames = (char**)
2862 odr_malloc(m_s2z_odr_search, sizeof(char *));
2863 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
2866 // query transformation
2867 Z_Query *query = (Z_Query *)
2868 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
2869 z_searchRequest->query = query;
2871 if (srw_req->query_type == Z_SRW_query_type_cql)
2873 Z_External *ext = (Z_External *)
2874 odr_malloc(m_s2z_odr_search, sizeof(*ext));
2875 ext->direct_reference =
2876 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
2877 ext->indirect_reference = 0;
2878 ext->descriptor = 0;
2879 ext->which = Z_External_CQL;
2880 ext->u.cql = srw_req->query.cql;
2882 query->which = Z_Query_type_104;
2883 query->u.type_104 = ext;
2885 else if (srw_req->query_type == Z_SRW_query_type_pqf)
2887 Z_RPNQuery *RPNquery;
2888 YAZ_PQF_Parser pqf_parser;
2890 pqf_parser = yaz_pqf_create ();
2892 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
2893 srw_req->query.pqf);
2896 const char *pqf_msg;
2898 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
2900 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
2901 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
2903 send_to_srw_client_error(10, 0);
2906 query->which = Z_Query_type_1;
2907 query->u.type_1 = RPNquery;
2909 yaz_pqf_destroy (pqf_parser);
2913 send_to_srw_client_error(7, "query");
2918 m_s2z_present_apdu = 0;
2920 if (srw_req->maximumRecords)
2921 max = *srw_req->maximumRecords;
2923 if (srw_req->startRecord)
2924 start = *srw_req->startRecord;
2927 // Some backend, such as Voyager doesn't honor piggyback
2928 // So we use present always (0 &&).
2929 if (0 && start <= 1) // Z39.50 piggyback
2931 *z_searchRequest->smallSetUpperBound = max;
2932 *z_searchRequest->mediumSetPresentNumber = max;
2933 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
2935 z_searchRequest->preferredRecordSyntax =
2936 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2938 if (srw_req->recordSchema)
2940 z_searchRequest->smallSetElementSetNames =
2941 z_searchRequest->mediumSetElementSetNames =
2942 mk_esn_from_schema(m_s2z_odr_search,
2943 srw_req->recordSchema);
2946 else // Z39.50 present
2948 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
2949 Z_APDU_presentRequest);
2950 Z_PresentRequest *z_presentRequest =
2951 m_s2z_present_apdu->u.presentRequest;
2952 *z_presentRequest->resultSetStartPoint = start;
2953 *z_presentRequest->numberOfRecordsRequested = max;
2955 z_presentRequest->preferredRecordSyntax =
2956 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
2957 if (srw_req->recordSchema)
2959 z_presentRequest->recordComposition =
2960 (Z_RecordComposition *)
2961 odr_malloc(m_s2z_odr_search,
2962 sizeof(Z_RecordComposition));
2963 z_presentRequest->recordComposition->which =
2964 Z_RecordComp_simple;
2965 z_presentRequest->recordComposition->u.simple =
2966 mk_esn_from_schema(m_s2z_odr_search,
2967 srw_req->recordSchema);
2973 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
2974 Z_APDU_initRequest);
2976 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
2978 // prevent m_initRequest_apdu memory from being grabbed
2979 // in Yaz_Proxy::handle_incoming_Z_PDU
2980 m_initRequest_apdu = m_s2z_init_apdu;
2981 handle_incoming_Z_PDU(m_s2z_init_apdu);
2986 handle_incoming_Z_PDU(m_s2z_search_apdu);
2990 else if (srw_pdu->which == Z_SRW_explain_request)
2992 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
2994 const char *backend_db = srw_req->database;
2995 srw_get_client(srw_req->database, &backend_db);
2997 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3000 if (srw_req->stylesheet)
3002 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3004 if (srw_req->recordPacking &&
3005 !strcmp(srw_req->recordPacking, "xml"))
3006 m_s2z_packing = Z_SRW_recordPacking_XML;
3008 m_s2z_packing = Z_SRW_recordPacking_string;
3012 send_srw_explain_response(diagnostic, num_diagnostic);
3018 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3019 Z_APDU_initRequest);
3021 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3023 // prevent m_initRequest_apdu memory from being grabbed
3024 // in Yaz_Proxy::handle_incoming_Z_PDU
3025 m_initRequest_apdu = m_s2z_init_apdu;
3026 handle_incoming_Z_PDU(m_s2z_init_apdu);
3029 send_srw_explain_response(0, 0);
3032 else if (srw_pdu->which == Z_SRW_scan_request)
3034 m_s2z_database = odr_strdup(m_s2z_odr_init,
3035 srw_pdu->u.scan_request->database);
3037 yaz_add_srw_diagnostic(odr_decode(),
3038 &diagnostic, &num_diagnostic,
3040 Z_SRW_PDU *srw_pdu =
3041 yaz_srw_get(odr_encode(),
3042 Z_SRW_scan_response);
3043 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
3045 srw_res->diagnostics = diagnostic;
3046 srw_res->num_diagnostics = num_diagnostic;
3047 send_srw_response(srw_pdu);
3054 send_to_srw_client_error(4, 0);
3057 send_http_response(400);
3060 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3063 Z_OtherInformation **oi;
3064 get_otherInfoAPDU(apdu, &oi);
3066 if (apdu->u.initRequest->implementationId)
3067 yaz_log(YLOG_LOG, "%simplementationId: %s",
3068 m_session_str, apdu->u.initRequest->implementationId);
3069 if (apdu->u.initRequest->implementationName)
3070 yaz_log(YLOG_LOG, "%simplementationName: %s",
3071 m_session_str, apdu->u.initRequest->implementationName);
3072 if (apdu->u.initRequest->implementationVersion)
3073 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3074 m_session_str, apdu->u.initRequest->implementationVersion);
3075 if (m_initRequest_apdu == 0)
3077 if (m_initRequest_mem)
3078 nmem_destroy(m_initRequest_mem);
3080 m_initRequest_apdu = apdu;
3081 m_initRequest_mem = odr_extract_mem(odr_decode());
3083 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3084 preferredMessageSize;
3085 *apdu->u.initRequest->preferredMessageSize = 1024*1024;
3086 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3088 *apdu->u.initRequest->maximumRecordSize = 1024*1024;
3090 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3091 yaz_get_charneg_record(*oi);
3093 // Save proposal charsets and langs.
3094 if (ODR_MASK_GET(apdu->u.initRequest->options,
3095 Z_Options_negotiationModel)
3096 && charSetandLangRecord)
3099 yaz_get_proposal_charneg(m_referenceId_mem,
3100 charSetandLangRecord,
3101 &m_initRequest_oi_negotiation_charsets,
3102 &m_initRequest_oi_negotiation_num_charsets,
3103 &m_initRequest_oi_negotiation_langs,
3104 &m_initRequest_oi_negotiation_num_langs,
3105 &m_initRequest_oi_negotiation_selected);
3107 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3109 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3110 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3111 m_initRequest_oi_negotiation_charsets[i]:"none");
3113 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3115 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3116 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3117 m_initRequest_oi_negotiation_langs[i]:"none");
3119 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3120 m_session_str, m_initRequest_oi_negotiation_selected);
3122 // save init options for the response..
3123 m_initRequest_options = apdu->u.initRequest->options;
3125 apdu->u.initRequest->options =
3126 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3127 sizeof(Odr_bitmask));
3128 ODR_MASK_ZERO(apdu->u.initRequest->options);
3130 for (i = 0; i<= 24; i++)
3131 ODR_MASK_SET(apdu->u.initRequest->options, i);
3132 // check negotiation option
3133 if (!ODR_MASK_GET(m_initRequest_options,
3134 Z_Options_negotiationModel))
3136 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3137 Z_Options_negotiationModel);
3139 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3140 Z_Options_concurrentOperations);
3142 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3143 apdu->u.initRequest->protocolVersion =
3144 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3145 sizeof(Odr_bitmask));
3146 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3148 for (i = 0; i<= 8; i++)
3149 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3151 handle_charset_lang_negotiation(apdu);
3152 if (m_client->m_init_flag)
3154 if (handle_init_response_for_invalid_session(apdu))
3156 if (m_client->m_initResponse)
3158 Z_APDU *apdu2 = m_client->m_initResponse;
3159 apdu2->u.initResponse->otherInfo = 0;
3160 if (m_client->m_cookie && *m_client->m_cookie)
3161 set_otherInformationString(apdu2, yaz_oid_userinfo_cookie,
3162 1, m_client->m_cookie);
3163 apdu2->u.initResponse->referenceId =
3164 apdu->u.initRequest->referenceId;
3165 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3166 apdu2->u.initResponse->protocolVersion =
3167 m_client->m_initResponse_version;
3169 handle_charset_lang_negotiation(apdu2);
3171 if (m_timeout_mode == timeout_busy)
3172 m_timeout_mode = timeout_normal;
3173 send_to_client(apdu2);
3177 m_client->m_init_flag = 1;
3179 if (m_num_msg_threads && m_my_thread)
3181 Auth_Msg *m = new Auth_Msg;
3183 z_APDU(odr_encode(), &apdu, 0, "encode");
3184 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3185 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3186 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3187 odr_reset(odr_encode());
3190 m_my_thread->put(m);
3194 int ret = handle_authentication(apdu);
3195 result_authentication(apdu, ret);
3199 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3201 Z_ReferenceId **refid = get_referenceIdP(apdu);
3202 nmem_reset(m_referenceId_mem);
3203 if (refid && *refid)
3205 m_referenceId = (Z_ReferenceId *)
3206 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3207 m_referenceId->len = m_referenceId->size = (*refid)->len;
3208 m_referenceId->buf = (unsigned char *)
3209 nmem_malloc(m_referenceId_mem, (*refid)->len);
3210 memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
3215 if (!m_client && m_flag_invalid_session)
3217 // Got request for a session that is invalid..
3218 m_apdu_invalid_session = apdu; // save package
3219 m_mem_invalid_session = odr_extract_mem(odr_decode());
3220 apdu = m_initRequest_apdu; // but throw an init to the target
3223 if (apdu->which == Z_APDU_searchRequest)
3224 m_search_stat.add_bytes(1);
3226 // Handle global authentication
3227 if (!handle_global_authentication(apdu))
3230 { // HTTP. Send unauthorized
3231 send_http_response(401);
3236 // Z39.50 just shutdown
3243 // Determine our client.
3244 Z_OtherInformation **oi;
3245 get_otherInfoAPDU(apdu, &oi);
3246 int http_code = 404;
3247 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi), &http_code);
3251 { // HTTP. Send not found
3252 send_http_response(http_code);
3257 // Z39.50 just shutdown
3263 m_client->m_server = this;
3265 if (apdu->which == Z_APDU_initRequest)
3268 handle_incoming_Z_PDU_2(apdu);
3271 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3273 handle_max_record_retrieve(apdu);
3276 apdu = handle_syntax_validation(apdu);
3279 apdu = handle_query_transformation(apdu);
3282 apdu = handle_target_charset_conversion(apdu);
3285 apdu = handle_query_validation(apdu);
3288 apdu = result_set_optimize(apdu);
3292 m_client->timeout(m_target_idletime); // mark it active even
3293 recv_GDU_more(true);
3294 // though we didn't use it
3298 // delete other info construct completely if 0 elements
3299 Z_OtherInformation **oi;
3300 get_otherInfoAPDU(apdu, &oi);
3301 if (oi && *oi && (*oi)->num_elements == 0)
3304 if (apdu->which == Z_APDU_presentRequest &&
3305 m_client->m_resultSetStartPoint == 0)
3307 Z_PresentRequest *pr = apdu->u.presentRequest;
3308 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3309 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3311 m_client->m_resultSetStartPoint = 0;
3313 if (m_client->send_to_target(apdu) < 0)
3315 m_client->shutdown();
3318 m_client->m_waiting = 1;
3321 void Yaz_Proxy::connectNotify()
3325 void Yaz_Proxy::releaseClient()
3327 xfree(m_proxyTarget);
3329 m_flag_invalid_session = 0;
3330 // only keep if keep_alive flag is set...
3332 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3333 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3334 m_client->m_waiting == 0)
3336 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3338 m_client->get_hostname());
3339 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3340 m_session_str, m_client->m_pdu_recv,
3341 m_client->m_bytes_sent + m_client->m_bytes_recv,
3342 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3343 assert (m_client->m_waiting != 2);
3344 // Tell client (if any) that no server connection is there..
3345 m_client->m_server = 0;
3350 yaz_log (YLOG_LOG, "%sShutdown (client to proxy) close %s",
3352 m_client->get_hostname());
3353 assert (m_client->m_waiting != 2);
3359 yaz_log (YLOG_LOG, "%sshutdown (client to proxy) bad state",
3365 yaz_log (YLOG_LOG, "%sShutdown (client to proxy)",
3369 m_parent->pre_init();
3372 bool Yaz_Proxy::dec_ref()
3374 m_http_keepalive = 0;
3377 if (m_ref_count > 0)
3386 const char *Yaz_ProxyClient::get_session_str()
3390 return m_server->get_session_str();
3393 void Yaz_ProxyClient::shutdown()
3395 yaz_log (YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3400 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3401 m_server->dec_ref();
3407 void Yaz_Proxy::failNotify()
3410 yaz_log (YLOG_LOG, "%sConnection closed by client", get_session_str());
3414 void Yaz_Proxy::send_response_fail_client(const char *addr)
3418 Z_SRW_diagnostic *diagnostic = 0;
3419 int num_diagnostic = 0;
3421 yaz_add_srw_diagnostic(odr_encode(),
3422 &diagnostic, &num_diagnostic,
3423 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3424 if (m_s2z_search_apdu)
3425 send_srw_search_response(diagnostic, num_diagnostic);
3427 send_srw_explain_response(diagnostic, num_diagnostic);
3430 void Yaz_ProxyClient::failNotify()
3433 m_server->inc_request_no();
3434 yaz_log (YLOG_LOG, "%sConnection closed by target %s",
3435 get_session_str(), get_hostname());
3438 m_server->send_response_fail_client(get_hostname());
3442 void Yaz_ProxyClient::connectNotify()
3444 const char *s = get_session_str();
3445 const char *h = get_hostname();
3446 yaz_log (YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3448 timeout(m_target_idletime);
3453 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3454 *the_PDU_Observable, int fd)
3456 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3459 Yaz_ProxyClient::~Yaz_ProxyClient()
3464 m_next->m_prev = m_prev;
3465 m_waiting = 2; // for debugging purposes only.
3466 odr_destroy(m_init_odr);
3467 odr_destroy(m_idAuthentication_odr);
3468 delete m_last_query;
3469 xfree (m_last_resultSetId);
3473 void Yaz_ProxyClient::pre_init_client()
3475 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3476 Z_InitRequest *req = apdu->u.initRequest;
3479 for (i = 0; i<= 24; i++)
3480 ODR_MASK_SET(req->options, i);
3481 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3482 Z_Options_negotiationModel);
3483 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3484 Z_Options_concurrentOperations);
3485 for (i = 0; i<= 10; i++)
3486 ODR_MASK_SET(req->protocolVersion, i);
3488 if (send_to_target(apdu) < 0)
3499 void Yaz_Proxy::pre_init()
3502 const char *name = 0;
3503 const char *zurl_in_use[MAX_ZURL_PLEX];
3504 int limit_bw, limit_pdu, limit_req, limit_search;
3505 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,
3530 &keepalive_limit_bw,
3531 &keepalive_limit_pdu,
3535 &negotiation_charset,
3543 for (j = 0; zurl_in_use[j]; j++)
3547 int spare_waiting = 0;
3550 for (c = m_clientPool; c; c = c->m_next)
3552 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3554 if (c->m_cookie == 0)
3556 if (c->m_server == 0)
3568 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3569 "sparew=%d preinit=%d",m_session_str,
3570 name, zurl_in_use[j], in_use, other,
3571 spare, spare_waiting, pre_init);
3572 if (spare + spare_waiting < pre_init
3573 && in_use + spare + spare_waiting + other < max_sockets)
3575 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3576 c->m_next = m_clientPool;
3578 c->m_next->m_prev = &c->m_next;
3580 c->m_prev = &m_clientPool;
3582 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3583 c->set_APDU_yazlog(1);
3585 c->set_APDU_yazlog(0);
3587 if (c->client(zurl_in_use[j]))
3595 c->m_target_idletime = target_idletime;
3596 c->m_seqno = m_seqno++;
3603 void Yaz_Proxy::timeoutNotify()
3608 switch(m_timeout_mode)
3610 case timeout_normal:
3614 yaz_log (YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3617 case timeout_reduce:
3618 timeout(m_client_idletime);
3619 m_timeout_mode = timeout_busy;
3620 gdu = m_timeout_gdu;
3622 recv_GDU_normal(gdu);
3625 assert(m_stylesheet_nprl);
3626 convert_xsl_delay();
3627 recv_GDU_more(true);
3637 void Yaz_Proxy::markInvalid()
3640 m_flag_invalid_session = 1;
3643 void Yaz_ProxyClient::timeoutNotify()
3646 m_server->inc_request_no();
3648 yaz_log (YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
3652 m_server->send_response_fail_client(get_hostname());
3654 Yaz_Proxy *proxy_root = m_root;
3658 proxy_root->pre_init();
3661 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
3662 Yaz_Proxy *parent) :
3663 Z_Assoc (the_PDU_Observable)
3670 m_last_resultSetId = 0;
3671 m_last_resultCount = 0;
3675 m_init_odr = odr_createmem (ODR_DECODE);
3677 m_initResponse_options = 0;
3678 m_initResponse_version = 0;
3679 m_initResponse_preferredMessageSize = 0;
3680 m_initResponse_maximumRecordSize = 0;
3681 m_resultSetStartPoint = 0;
3682 m_bytes_sent = m_bytes_recv = 0;
3686 m_target_idletime = 600;
3688 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
3689 m_idAuthentication_ber_buf = 0;
3690 m_idAuthentication_ber_size = 0;
3693 const char *Yaz_Proxy::option(const char *name, const char *value)
3695 if (!strcmp (name, "optimize")) {
3698 m_optimize = xstrdup (value);
3705 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
3710 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
3712 if (apdu->which == Z_GDU_Z3950)
3713 recv_Z_PDU(apdu->u.z3950, len);
3714 else if (apdu->which == Z_GDU_HTTP_Response)
3715 recv_HTTP_response(apdu->u.HTTP_Response, len);
3720 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
3722 if (!m_flag_invalid_session)
3724 m_flag_invalid_session = 0;
3725 handle_incoming_Z_PDU(m_apdu_invalid_session);
3726 assert (m_mem_invalid_session);
3727 nmem_destroy(m_mem_invalid_session);
3728 m_mem_invalid_session = 0;
3732 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
3734 m_bytes_recv += len;
3738 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
3739 yaz_log (YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
3740 apdu_name(apdu), get_hostname(), len);
3741 if (apdu->which == Z_APDU_initResponse)
3743 if (!m_server) // if this is a pre init session , check for more
3745 NMEM nmem = odr_extract_mem (odr_decode());
3746 odr_reset (m_init_odr);
3747 nmem_transfer (m_init_odr->mem, nmem);
3748 m_initResponse = apdu;
3749 m_initResponse_options = apdu->u.initResponse->options;
3750 m_initResponse_version = apdu->u.initResponse->protocolVersion;
3751 m_initResponse_preferredMessageSize =
3752 *apdu->u.initResponse->preferredMessageSize;
3753 m_initResponse_maximumRecordSize =
3754 *apdu->u.initResponse->maximumRecordSize;
3756 Z_InitResponse *ir = apdu->u.initResponse;
3758 // apply YAZ Proxy version
3759 char *imv0 = ir->implementationVersion;
3760 char *imv1 = (char*)
3761 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
3766 strcat(imv1, "/" VERSION);
3768 ir->implementationVersion = imv1;
3770 // apply YAZ Proxy implementation name
3771 char *im0 = ir->implementationName;
3773 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
3780 strcat(im1, "(YAZ Proxy)");
3781 ir->implementationName = im1;
3783 nmem_destroy (nmem);
3785 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
3788 if (apdu->which == Z_APDU_searchResponse)
3790 Z_SearchResponse *sr = apdu->u.searchResponse;
3791 m_last_resultCount = *sr->resultCount;
3792 int status = *sr->searchStatus;
3793 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
3797 if (sr->records && sr->records->which == Z_Records_DBOSD)
3799 m_cache.add(odr_decode(),
3800 sr->records->u.databaseOrSurDiagnostics, 1,
3805 if (apdu->which == Z_APDU_presentResponse)
3807 Z_PresentResponse *pr = apdu->u.presentResponse;
3811 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
3812 Z_SearchResponse *sr = new_apdu->u.searchResponse;
3813 sr->referenceId = pr->referenceId;
3814 *sr->resultCount = m_last_resultCount;
3815 sr->records = pr->records;
3816 sr->nextResultSetPosition = pr->nextResultSetPosition;
3817 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
3821 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
3823 m_cache.add(odr_decode(),
3824 pr->records->u.databaseOrSurDiagnostics,
3825 m_resultSetStartPoint, -1);
3826 m_resultSetStartPoint = 0;
3830 set_otherInformationString(apdu, yaz_oid_userinfo_cookie, 1, m_cookie);
3832 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
3835 server->send_to_client(apdu);
3836 if (apdu->which == Z_APDU_close)
3839 server->recv_GDU_more(true);
3842 void Yaz_Proxy::low_socket_close()
3847 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3848 if (m_lo_fd[i] >= 0)
3849 ::close(m_lo_fd[i]);
3853 void Yaz_Proxy::low_socket_open()
3858 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
3859 m_lo_fd[i] = open("/dev/null", O_RDONLY);
3863 int Yaz_Proxy::server(const char *addr)
3865 int r = Z_Assoc::server(addr);
3868 yaz_log(YLOG_LOG, "%sStarted proxy "
3872 " on %s", m_session_str, addr);
3878 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
3880 const char *base64_chars =
3881 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
3882 int len = strlen(base64);
3886 for (int pos = 0; pos <= len; pos++)
3888 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
3891 const char *ch_ptr = strchr(base64_chars, base64[pos]);
3894 char ch = (char) (ch_ptr - base64_chars);
3898 buf[buf_pos] = ch << 2;
3901 buf[buf_pos++] += (ch & 0x30) >> 4;
3902 buf[buf_pos] = (ch & 0x0f) << 4;
3905 buf[buf_pos++] += (ch & 0x3c) >> 2;
3906 buf[buf_pos] = (ch & 0x03) << 6;
3909 buf[buf_pos++] += ch;
3916 buf[buf_pos] = '\0';
3922 * indent-tabs-mode: nil
3924 * vim: shiftwidth=4 tabstop=8 expandtab