1 /* This file is part of YAZ proxy
2 Copyright (C) 1998-2011 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 #if YAZ_VERSIONL >= 0x03001D
55 #define YAZ_HAS_MK_SURROGATE 1
57 #define YAZ_HAS_MK_SURROGATE 0
60 using namespace yazpp_1;
63 #define strncasecmp _strnicmp
66 class YAZ_EXPORT Auth_Msg : public IMsg_Thread {
69 IMsg_Thread *handle();
81 m_nmem = nmem_create();
89 IMsg_Thread *Auth_Msg::handle()
91 ODR decode = odr_createmem(ODR_DECODE);
94 odr_setbuf(decode, m_apdu_buf, m_apdu_len, 0);
95 int r = z_APDU(decode, &apdu, 0, 0);
98 yaz_log(YLOG_WARN, "decode failed in Auth_Msg::handle");
102 m_ret = m_proxy->handle_authentication(apdu);
108 void Auth_Msg::result()
110 if (m_proxy->dec_ref())
112 yaz_log(YLOG_LOG, "Auth_Msg::proxy deleted meanwhile");
116 odr_setbuf(m_proxy->odr_decode(), m_apdu_buf, m_apdu_len, 0);
118 int r = z_APDU(m_proxy->odr_decode(), &apdu, 0, 0);
120 yaz_log(YLOG_LOG, "Auth_Msg::result z_APDU failed");
121 m_proxy->result_authentication(apdu, m_ret);
126 void Yaz_Proxy::result_authentication(Z_APDU *apdu, int ret)
128 if (apdu == 0 || ret == 0)
130 Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse);
131 *apdu_reject->u.initResponse->result = 0;
132 send_to_client(apdu_reject);
137 if (apdu->which == Z_APDU_initRequest)
139 Yaz_ProxyConfig *cfg = check_reconfigure();
141 cfg->target_authentication(m_default_target, odr_encode(),
142 apdu->u.initRequest);
144 handle_incoming_Z_PDU_2(apdu);
148 static const char *apdu_name(Z_APDU *apdu)
152 case Z_APDU_initRequest:
153 return "initRequest";
154 case Z_APDU_initResponse:
155 return "initResponse";
156 case Z_APDU_searchRequest:
157 return "searchRequest";
158 case Z_APDU_searchResponse:
159 return "searchResponse";
160 case Z_APDU_presentRequest:
161 return "presentRequest";
162 case Z_APDU_presentResponse:
163 return "presentResponse";
164 case Z_APDU_deleteResultSetRequest:
165 return "deleteResultSetRequest";
166 case Z_APDU_deleteResultSetResponse:
167 return "deleteResultSetResponse";
168 case Z_APDU_scanRequest:
169 return "scanRequest";
170 case Z_APDU_scanResponse:
171 return "scanResponse";
172 case Z_APDU_sortRequest:
173 return "sortRequest";
174 case Z_APDU_sortResponse:
175 return "sortResponse";
176 case Z_APDU_extendedServicesRequest:
177 return "extendedServicesRequest";
178 case Z_APDU_extendedServicesResponse:
179 return "extendedServicesResponse";
186 static const char *gdu_name(Z_GDU *gdu)
191 return apdu_name(gdu->u.z3950);
192 case Z_GDU_HTTP_Request:
193 return "HTTP Request";
194 case Z_GDU_HTTP_Response:
195 return "HTTP Response";
197 return "Unknown request/response";
200 Yaz_Proxy::Yaz_Proxy(IPDU_Observable *the_PDU_Observable,
201 ISocketObservable *the_socket_observable,
204 Z_Assoc(the_PDU_Observable),
205 m_bw_stat(60), m_pdu_stat(60), m_search_stat(60)
207 m_PDU_Observable = the_PDU_Observable;
208 m_socket_observable = the_socket_observable;
213 m_keepalive_limit_bw = 500000;
214 m_keepalive_limit_pdu = 1000;
216 m_default_target = 0;
217 m_proxy_negotiation_charset = 0;
218 m_proxy_negotiation_lang = 0;
219 m_proxy_negotiation_default_charset = 0;
220 m_charset_converter = new Yaz_CharsetConverter;
224 m_client_idletime = 600;
225 m_target_idletime = 600;
226 m_max_sockets = 1024;
227 m_optimize = xstrdup("1");
228 strcpy(m_session_str, "0 ");
236 m_max_connect_period = 0;
238 m_limit_connect_period = 0;
239 m_timeout_mode = timeout_normal;
241 m_max_record_retrieve = 0;
245 m_flag_invalid_session = 0;
247 m_referenceId_mem = nmem_create();
249 m_marcxml_mode = none;
250 m_stylesheet_xsp = 0;
251 m_stylesheet_nprl = 0;
252 m_stylesheet_apdu = 0;
253 m_s2z_stylesheet = 0;
257 m_backend_charset = 0;
258 m_frontend_type[0] = -1;
259 m_initRequest_apdu = 0;
260 m_initRequest_mem = 0;
261 m_initRequest_preferredMessageSize = 0;
262 m_initRequest_maximumRecordSize = 0;
263 m_initRequest_options = 0;
264 m_initRequest_version = 0;
265 m_initRequest_oi_negotiation_charsets = 0;
266 m_initRequest_oi_negotiation_num_charsets = 0;
267 m_initRequest_oi_negotiation_langs = 0;
268 m_initRequest_oi_negotiation_num_langs = 0;
269 m_initRequest_oi_negotiation_selected = 0;
270 m_apdu_invalid_session = 0;
271 m_mem_invalid_session = 0;
273 m_s2z_odr_search = 0;
276 m_s2z_search_apdu = 0;
277 m_s2z_present_apdu = 0;
279 m_http_keepalive = 0;
282 m_s2z_packing = Z_SRW_recordPacking_string;
283 #if HAVE_GETTIMEOFDAY
284 m_time_tv = xmalloc(sizeof(struct timeval));
285 struct timeval *tv = (struct timeval *) m_time_tv;
291 m_usemarcon_ini_stage1 = 0;
292 m_usemarcon_ini_stage2 = 0;
293 m_usemarcon = new Yaz_usemarcon();
296 m_backend_elementset = 0;
299 m_main_ptr_dec = false;
301 m_num_msg_threads = 0;
304 void Yaz_Proxy::inc_ref()
309 Yaz_Proxy::~Yaz_Proxy()
311 yaz_log(YLOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
312 m_bytes_sent, m_bytes_recv);
313 nmem_destroy(m_initRequest_mem);
314 nmem_destroy(m_mem_invalid_session);
315 nmem_destroy(m_referenceId_mem);
317 xfree(m_proxyTarget);
318 xfree(m_default_target);
319 xfree(m_proxy_negotiation_charset);
320 xfree(m_proxy_negotiation_lang);
321 xfree(m_proxy_negotiation_default_charset);
322 delete m_charset_converter;
326 if (m_stylesheet_xsp)
327 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
333 xfree(m_backend_type);
334 xfree(m_backend_charset);
335 xfree(m_usemarcon_ini_stage1);
336 xfree(m_usemarcon_ini_stage2);
337 xfree(m_backend_elementset);
340 odr_destroy(m_s2z_odr_init);
341 if (m_s2z_odr_search)
342 odr_destroy(m_s2z_odr_search);
344 odr_destroy(m_s2z_odr_scan);
352 void Yaz_Proxy::set_debug_mode(int mode)
357 int Yaz_Proxy::set_config(const char *config)
360 m_config = new Yaz_ProxyConfig();
361 xfree(m_config_fname);
362 m_config_fname = xstrdup(config);
363 int r = m_config->read_xml(config);
367 m_config->get_generic_info(&m_log_mask, &m_max_clients,
368 &m_max_connect, &m_limit_connect, &period,
370 m_connect.set_period(period);
375 void Yaz_Proxy::set_default_target(const char *target)
377 xfree(m_default_target);
378 m_default_target = 0;
380 m_default_target = (char *) xstrdup(target);
383 void Yaz_Proxy::set_proxy_negotiation(const char *charset, const char *lang,
384 const char *default_charset)
386 yaz_log(YLOG_DEBUG, "%sSet the proxy negotiation: charset to '%s', "
387 "default charset to '%s', language to '%s'", m_session_str,
388 charset?charset:"none",
389 default_charset?default_charset:"none",
391 xfree(m_proxy_negotiation_charset);
392 xfree(m_proxy_negotiation_lang);
393 m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0;
395 m_proxy_negotiation_charset = (char *) xstrdup(charset);
397 m_proxy_negotiation_lang = (char *) xstrdup(lang);
399 m_proxy_negotiation_default_charset =
400 (char *) xstrdup(default_charset);
403 Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
406 return m_parent->check_reconfigure();
408 Yaz_ProxyConfig *cfg = m_config;
411 yaz_log(YLOG_LOG, "reconfigure");
412 if (m_config_fname && cfg)
414 yaz_log(YLOG_LOG, "reconfigure config %s", m_config_fname);
415 int r = cfg->read_xml(m_config_fname);
417 yaz_log(YLOG_WARN, "reconfigure failed");
422 cfg->get_generic_info(&m_log_mask, &m_max_clients,
423 &m_max_connect, &m_limit_connect,
424 &period, &m_num_msg_threads);
425 m_connect.set_period(period);
429 yaz_log(YLOG_LOG, "reconfigure");
435 IPDU_Observer *Yaz_Proxy::sessionNotify(IPDU_Observable
436 *the_PDU_Observable, int fd)
440 char session_str[200];
441 const char *peername = the_PDU_Observable->getpeername();
443 peername = "nullpeer";
445 if (m_log_mask & PROXY_LOG_IP_CLIENT)
446 sprintf(session_str, "%ld:%d %.80s %d ",
447 (long) time(0), m_session_no, peername, 0);
449 sprintf(session_str, "%ld:%d %d ",
450 (long) time(0), m_session_no, 0);
453 yaz_log(YLOG_LOG, "%sNew session %s", session_str, peername);
455 Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable,
456 m_socket_observable, this);
458 new_proxy->m_config = 0;
459 new_proxy->m_config_fname = 0;
460 new_proxy->timeout(m_client_idletime);
461 new_proxy->m_target_idletime = m_target_idletime;
462 new_proxy->set_default_target(m_default_target);
463 new_proxy->m_max_clients = m_max_clients;
464 new_proxy->m_log_mask = m_log_mask;
465 new_proxy->m_session_no = m_session_no;
466 new_proxy->m_num_msg_threads = m_num_msg_threads;
469 // in case we want to watch a particular client..
470 if (!strcmp(peername, "tcp:163.121.19.82")) // NIS GROUP
471 new_proxy->m_log_mask = 255;
474 new_proxy->set_APDU_log(get_APDU_log());
475 if (new_proxy->m_log_mask & PROXY_LOG_APDU_CLIENT)
476 new_proxy->set_APDU_yazlog(1);
478 new_proxy->set_APDU_yazlog(0);
479 strcpy(new_proxy->m_session_str, session_str);
480 new_proxy->m_peername = xstrdup(peername);
481 new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset,
482 m_proxy_negotiation_lang, m_proxy_negotiation_default_charset);
483 // create thread object the first time we get an incoming connection
484 if (!m_my_thread && m_num_msg_threads > 0)
486 yaz_log(YLOG_LOG, "%sStarting message thread management. number=%d",
487 session_str, m_num_msg_threads);
488 m_my_thread = new Msg_Thread(m_socket_observable, m_num_msg_threads);
490 new_proxy->m_my_thread = m_my_thread;
494 char *Yaz_Proxy::get_cookie(Z_OtherInformation **otherInfo)
496 Z_OtherInformationUnit *oi =
497 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_cookie, 1, 1);
499 if (oi && oi->which == Z_OtherInfo_characterInfo)
500 return oi->information.characterInfo;
504 char *Yaz_Proxy::get_proxy(Z_OtherInformation **otherInfo)
506 Z_OtherInformationUnit *oi =
507 update_otherInformation(otherInfo, 0, yaz_oid_userinfo_proxy, 1, 1);
509 if (oi && oi->which == Z_OtherInfo_characterInfo)
510 return oi->information.characterInfo;
513 const char *Yaz_Proxy::load_balance(const char **url)
515 int zurl_in_use[MAX_ZURL_PLEX];
516 int zurl_in_spare[MAX_ZURL_PLEX];
520 for (i = 0; i<MAX_ZURL_PLEX; i++)
523 zurl_in_spare[i] = 0;
525 for (c = m_parent->m_clientPool; c; c = c->m_next)
527 for (i = 0; url[i]; i++)
528 if (!strcmp(url[i], c->get_hostname()))
531 if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
535 int min_use = 100000;
537 const char *ret_min = 0;
538 for (i = 0; url[i]; i++)
540 yaz_log(YLOG_DEBUG, "%szurl=%s use=%d spare=%d",
541 m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
542 if (min_use > zurl_in_use[i])
545 min_use = zurl_in_use[i];
547 if (max_spare < zurl_in_spare[i])
549 max_spare = zurl_in_spare[i];
555 int Yaz_Proxy::get_number_of_connections()
557 int no_connections = 0;
560 for (c = m_parent->m_clientPool; c; c = c->m_next)
563 assert(*c->m_prev == c);
564 if (!strcmp(m_proxyTarget, c->get_hostname()))
569 yaz_log(YLOG_LOG, "%sExisting %s connections: %d", m_session_str, m_proxyTarget,
571 return no_connections;
574 Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
575 const char *proxy_host, int *http_code)
578 Yaz_Proxy *parent = m_parent;
579 Yaz_ProxyClient *c = m_client;
583 const char *url[MAX_ZURL_PLEX];
584 Yaz_ProxyConfig *cfg = check_reconfigure();
587 if (parent && parent->m_debug_mode)
589 // only to be enabled for debugging...
590 if (!strcmp(proxy_host, "stop"))
593 xfree(m_default_target);
594 m_default_target = xstrdup(proxy_host);
596 proxy_host = m_default_target;
597 int client_idletime = -1;
598 const char *cql2rpn_fname = 0;
599 const char *negotiation_charset = 0;
600 const char *negotiation_lang = 0;
601 const char *query_charset = 0;
602 const char *default_client_query_charset = 0;
603 url[0] = m_default_target;
608 cfg->get_target_info(proxy_host, url, &m_bw_max,
609 &m_pdu_max, &m_max_record_retrieve,
611 &m_target_idletime, &client_idletime,
613 &parent->m_max_clients,
614 &m_keepalive_limit_bw,
615 &m_keepalive_limit_pdu,
618 &negotiation_charset,
621 &default_client_query_charset);
623 if (client_idletime != -1)
625 m_client_idletime = client_idletime;
626 timeout(m_client_idletime);
629 // get those FILE descriptors available
630 m_parent->low_socket_close();
632 m_cql2rpn.set_pqf_file(cql2rpn_fname);
633 // reserve them again
634 m_parent->low_socket_open();
636 if (negotiation_charset || negotiation_lang || default_client_query_charset)
638 set_proxy_negotiation(negotiation_charset,
639 negotiation_lang, default_client_query_charset);
641 m_charset_converter->set_target_query_charset(query_charset);
644 yaz_log(YLOG_LOG, "%sNo default target", m_session_str);
647 // we don't handle multiplexing for cookie session, so we just
648 // pick the first one in this case (anonymous users will be able
649 // to use any backend)
650 if (cookie && *cookie)
651 m_proxyTarget = (char*) xstrdup(url[0]);
653 m_proxyTarget = (char*) xstrdup(load_balance(url));
655 if (cookie && *cookie)
656 { // search in sessions with a cookie
657 for (c = parent->m_clientPool; c; c = c->m_next)
660 assert(*c->m_prev == c);
661 if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
662 !strcmp(m_proxyTarget, c->get_hostname()))
665 // The following handles "cancel"
666 // If connection is busy (waiting for PDU) and
667 // we have an initRequest we can safely do re-open
668 if (c->m_waiting && apdu->which == Z_APDU_initRequest)
670 yaz_log(YLOG_LOG, "%s REOPEN target=%s", m_session_str,
677 c->m_last_resultCount = 0;
678 c->m_sr_transform = 0;
680 c->m_resultSetStartPoint = 0;
681 c->m_target_idletime = m_target_idletime;
682 if (c->client(m_proxyTarget))
689 c->m_seqno = parent->m_seqno;
690 if (c->m_server && c->m_server != this)
691 c->m_server->m_client = 0;
694 yaz_log(YLOG_DEBUG, "get_client 1 %p %p", this, c);
699 else if (!c && apdu->which == Z_APDU_initRequest )
701 // anonymous sessions without cookie.
702 // if authentication is set it is NOT anonymous se we can't share them.
703 // If charset and lang negotiation is use it is NOT anonymous session too.
704 for (c = parent->m_clientPool; c; c = c->m_next)
707 assert(*c->m_prev == c);
708 if (c->m_server == 0 && c->m_cookie == 0 && c->m_waiting == 0
709 && c->compare_idAuthentication(apdu)
710 && c->compare_charset(apdu)
711 && !strcmp(m_proxyTarget, c->get_hostname()))
714 yaz_log(YLOG_LOG, "%sREUSE %d %s",
715 m_session_str, parent->m_seqno, c->get_hostname());
717 c->m_seqno = parent->m_seqno;
718 assert(c->m_server == 0);
721 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
722 c->set_APDU_yazlog(1);
724 c->set_APDU_yazlog(0);
736 if (apdu->which != Z_APDU_initRequest)
738 yaz_log(YLOG_LOG, "%sno init request as first PDU", m_session_str);
743 int no_in_use = get_number_of_connections();
744 if (no_in_use >= m_max_sockets)
746 yaz_log(YLOG_LOG, "%smax sockets reached %d", m_session_str,
751 // go through list of clients - and find the lowest/oldest one.
752 Yaz_ProxyClient *c_min = 0;
754 int no_of_clients = 0;
755 if (parent->m_clientPool)
756 yaz_log(YLOG_DEBUG, "Existing sessions");
757 for (c = parent->m_clientPool; c; c = c->m_next)
759 yaz_log(YLOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
760 c->m_waiting, c->get_hostname(),
761 c->m_cookie ? c->m_cookie : "");
763 if (min_seq < 0 || c->m_seqno < min_seq)
765 min_seq = c->m_seqno;
769 if (no_of_clients >= parent->m_max_clients)
772 if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
774 yaz_log(YLOG_LOG, "%sMAXCLIENTS %d Destroy %d",
775 m_session_str, parent->m_max_clients, c->m_seqno);
776 if (c->m_server && c->m_server != this)
777 c->m_server->dec_ref();
781 yaz_log(YLOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
782 m_session_str, parent->m_max_clients,
783 c->m_seqno, parent->m_seqno, c->get_hostname());
787 c->m_cookie = xstrdup(cookie);
788 c->m_seqno = parent->m_seqno;
789 if (c->m_server && c->m_server != this)
791 c->m_server->m_client = 0;
792 c->m_server->dec_ref();
795 c->m_target_idletime = m_target_idletime;
796 c->timeout(m_target_idletime);
798 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
799 c->set_APDU_yazlog(1);
801 c->set_APDU_yazlog(0);
806 yaz_log(YLOG_LOG, "%sNEW %d %s",
807 m_session_str, parent->m_seqno, m_proxyTarget);
808 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
809 c->m_next = parent->m_clientPool;
811 c->m_next->m_prev = &c->m_next;
812 parent->m_clientPool = c;
813 c->m_prev = &parent->m_clientPool;
818 c->m_cookie = xstrdup(cookie);
820 c->m_seqno = parent->m_seqno;
822 c->m_last_resultCount = 0;
825 c->m_sr_transform = 0;
827 c->m_resultSetStartPoint = 0;
829 if (c->client(m_proxyTarget))
834 c->m_target_idletime = m_target_idletime;
837 if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
838 c->set_APDU_yazlog(1);
840 c->set_APDU_yazlog(0);
842 c->set_idAuthentication(apdu);
844 yaz_log(YLOG_DEBUG, "get_client 3 %p %p", this, c);
848 void Yaz_Proxy::display_diagrecs(Z_DiagRec **pp, int num)
851 for (i = 0; i<num; i++)
853 Z_DefaultDiagFormat *r;
854 Z_DiagRec *p = pp[i];
855 if (p->which != Z_DiagRec_defaultFormat)
857 yaz_log(YLOG_LOG, "%sError no diagnostics", m_session_str);
861 r = p->u.defaultFormat;
864 case Z_DefaultDiagFormat_v2Addinfo:
865 yaz_log(YLOG_LOG, "%sError " ODR_INT_PRINTF " %s:%s",
867 *r->condition, diagbib1_str(*r->condition),
870 case Z_DefaultDiagFormat_v3Addinfo:
871 yaz_log(YLOG_LOG, "%sError " ODR_INT_PRINTF " %s:%s",
873 *r->condition, diagbib1_str(*r->condition),
880 int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
882 if (!m_stylesheet_xsp || p->num_records <= 0)
884 return 0; /* no XSLT to be done ... */
887 m_stylesheet_offset = 0;
888 m_stylesheet_nprl = p;
889 m_stylesheet_apdu = apdu;
890 m_timeout_mode = timeout_xsl;
896 void Yaz_Proxy::convert_xsl_delay()
899 Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
900 if (npr->which == Z_NamePlusRecord_databaseRecord)
902 Z_External *r = npr->u.databaseRecord;
903 if (r->which == Z_External_octet)
906 fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
908 xmlDocPtr res, doc = xmlParseMemory(
909 (char*) r->u.octet_aligned->buf,
910 r->u.octet_aligned->len);
913 yaz_log(YLOG_LOG, "%sXSLT convert %d",
914 m_session_str, m_stylesheet_offset);
915 res = xsltApplyStylesheet((xsltStylesheetPtr) m_stylesheet_xsp,
922 xmlDocDumpFormatMemory(res, &out_buf, &out_len, 1);
923 m_stylesheet_nprl->records[m_stylesheet_offset]->
925 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
926 (char*) out_buf, out_len);
935 m_stylesheet_offset++;
936 if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
938 m_timeout_mode = timeout_normal;
939 m_stylesheet_nprl = 0;
941 if (m_stylesheet_xsp)
942 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
944 m_stylesheet_xsp = 0;
945 timeout(m_client_idletime);
946 send_PDU_convert(m_stylesheet_apdu);
952 void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p)
954 if (m_frontend_type[0] != -1)
957 for (i = 0; i < p->num_records; i++)
959 Z_NamePlusRecord *npr = p->records[i];
960 if (npr->which == Z_NamePlusRecord_databaseRecord)
962 Z_External *r = npr->u.databaseRecord;
963 if (r->which == Z_External_octet)
966 if (m_usemarcon_ini_stage1 && *m_usemarcon_ini_stage1)
967 yaz_log(YLOG_LOG, "%sError: USEMARCON requested but not available",
971 yaz_log(YLOG_DEBUG, "%sUSEMARCON stage1=%s stage2=%s",
973 m_usemarcon_ini_stage1 ? m_usemarcon_ini_stage1 : "(none)",
974 m_usemarcon_ini_stage2 ? m_usemarcon_ini_stage2 : "(none)");
977 if (m_usemarcon->convert(m_usemarcon_ini_stage1, m_usemarcon_ini_stage2,
978 (char*) r->u.octet_aligned->buf, r->u.octet_aligned->len,
979 &converted, &convlen))
981 npr->u.databaseRecord =
982 z_ext_record_oid(odr_encode(),
991 npr->u.databaseRecord =
992 z_ext_record_oid(odr_encode(),
994 (char*) r->u.octet_aligned->buf,
995 r->u.octet_aligned->len);
1002 void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p,
1003 const char *backend_charset)
1005 int sel = m_charset_converter->get_client_charset_selected();
1006 const char *client_record_charset =
1007 m_charset_converter->get_client_query_charset();
1008 if (sel && backend_charset && client_record_charset &&
1009 strcmp(backend_charset, client_record_charset))
1012 yaz_iconv_t cd = yaz_iconv_open(client_record_charset,
1014 yaz_marc_t mt = yaz_marc_create();
1015 yaz_marc_xml(mt, YAZ_MARC_ISO2709);
1016 yaz_marc_iconv(mt, cd);
1017 for (i = 0; i < p->num_records; i++)
1019 Z_NamePlusRecord *npr = p->records[i];
1020 if (npr->which == Z_NamePlusRecord_databaseRecord)
1022 Z_External *r = npr->u.databaseRecord;
1023 const Odr_oid *oid = r->direct_reference;
1027 if (!oid_oidcmp(oid, yaz_oid_recsyn_sutrs))
1029 WRBUF w = wrbuf_alloc();
1031 wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf,
1032 r->u.octet_aligned->len);
1033 npr->u.databaseRecord =
1034 z_ext_record_oid(odr_encode(), oid, wrbuf_buf(w),
1038 else if (!oid_oidcmp(oid, yaz_oid_recsyn_xml))
1042 else if (r->which == Z_External_octet)
1046 if (yaz_marc_decode_buf(mt,
1047 (char*) r->u.octet_aligned->buf,
1048 r->u.octet_aligned->len,
1051 npr->u.databaseRecord =
1052 z_ext_record_oid(odr_encode(), oid, result, rlen);
1053 yaz_log(YLOG_LOG, "%sRecoding MARC record",
1060 yaz_iconv_close(cd);
1061 yaz_marc_destroy(mt);
1065 void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p,
1066 const char *backend_charset)
1069 if (!backend_charset)
1070 backend_charset = "MARC-8";
1071 yaz_iconv_t cd = yaz_iconv_open("UTF-8", backend_charset);
1072 yaz_marc_t mt = yaz_marc_create();
1073 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1074 yaz_marc_iconv(mt, cd);
1075 for (i = 0; i < p->num_records; i++)
1077 Z_NamePlusRecord *npr = p->records[i];
1078 if (npr->which == Z_NamePlusRecord_databaseRecord)
1080 Z_External *r = npr->u.databaseRecord;
1081 if (r->which == Z_External_OPAC)
1083 WRBUF w = wrbuf_alloc();
1085 yaz_opac_decode_wrbuf(mt, r->u.opac, w);
1086 npr->u.databaseRecord = z_ext_record_oid(
1087 odr_encode(), yaz_oid_recsyn_xml,
1088 wrbuf_buf(w), wrbuf_len(w));
1091 else if (r->which == Z_External_octet)
1095 if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
1096 r->u.octet_aligned->len,
1099 npr->u.databaseRecord =
1100 z_ext_record_oid(odr_encode(), yaz_oid_recsyn_xml,
1107 yaz_iconv_close(cd);
1108 yaz_marc_destroy(mt);
1111 void Yaz_Proxy::logtime()
1113 #if HAVE_GETTIMEOFDAY
1114 struct timeval *tv = (struct timeval*) m_time_tv;
1118 gettimeofday(&tv1, 0);
1119 long diff = (tv1.tv_sec - tv->tv_sec)*1000000 +
1120 (tv1.tv_usec - tv->tv_usec);
1122 yaz_log(YLOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
1123 diff/1000000, (diff/1000)%1000);
1130 int Yaz_Proxy::send_http_response(int code)
1132 ODR o = odr_encode();
1133 Z_GDU *gdu = z_get_HTTP_Response(o, code);
1134 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1136 hres->version = odr_strdup(o, m_http_version);
1137 if (m_http_keepalive)
1138 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1142 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate",
1143 "Basic realm=\"YAZ Proxy\"");
1146 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1148 yaz_log (YLOG_LOG, "%sSending %s to client", m_session_str,
1152 int r = send_GDU(gdu, &len);
1153 m_bytes_sent += len;
1154 m_bw_stat.add_bytes(len);
1157 recv_GDU_more(true);
1162 int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu, int http_code /* = 200 */)
1164 ODR o = odr_encode();
1165 const char *ctype = "text/xml";
1166 Z_GDU *gdu = z_get_HTTP_Response(o, http_code);
1167 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
1169 hres->version = odr_strdup(o, m_http_version);
1170 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1171 if (m_http_keepalive)
1172 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1175 if (http_code == 401)
1176 z_HTTP_header_add(o, &hres->headers, "WWW-Authenticate", "Basic realm=\"YAZ Proxy\"");
1178 static Z_SOAP_Handler soap_handlers[2] = {
1180 { (char*) "http://www.loc.gov/zing/srw/", 0,
1181 (Z_SOAP_fun) yaz_srw_codec},
1186 Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
1187 soap_package->which = Z_SOAP_generic;
1188 soap_package->u.generic =
1189 (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
1190 soap_package->u.generic->no = 0;
1191 soap_package->u.generic->ns = soap_handlers[0].ns;
1192 soap_package->u.generic->p = (void *) srw_pdu;
1193 soap_package->ns = m_soap_ns;
1194 z_soap_codec_enc_xsl(o, &soap_package,
1195 &hres->content_buf, &hres->content_len,
1196 soap_handlers, 0, m_s2z_stylesheet);
1197 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1199 yaz_log(YLOG_LOG, "%sSending %s to client", m_session_str,
1203 int r = send_GDU(gdu, &len);
1204 m_bytes_sent += len;
1205 m_bw_stat.add_bytes(len);
1208 recv_GDU_more(true);
1213 int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
1215 ODR o = odr_encode();
1216 Z_SRW_diagnostic *diagnostic = (Z_SRW_diagnostic *)
1217 odr_malloc(o, sizeof(*diagnostic));
1218 int num_diagnostic = 1;
1219 yaz_mk_std_diagnostic(o, diagnostic, srw_error, add);
1220 return send_srw_search_response(diagnostic, num_diagnostic, srw_error == 3 ? 401 : 200);
1223 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
1224 Z_DefaultDiagFormat *ddf)
1226 int bib1_code = *ddf->condition;
1227 if (bib1_code == 109)
1229 srw_res->num_diagnostics = 1;
1230 srw_res->diagnostics = (Z_SRW_diagnostic *)
1231 odr_malloc(o, sizeof(*srw_res->diagnostics));
1232 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1233 yaz_diag_bib1_to_srw(*ddf->condition),
1238 int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_scanResponse *srw_res,
1241 if (dr->which == Z_DiagRec_defaultFormat)
1243 int bib1_code = *dr->u.defaultFormat->condition;
1244 if (bib1_code == 109)
1246 srw_res->num_diagnostics = 1;
1247 srw_res->diagnostics = (Z_SRW_diagnostic *)
1248 odr_malloc(o, sizeof(*srw_res->diagnostics));
1249 yaz_mk_std_diagnostic(o, srw_res->diagnostics,
1250 yaz_diag_bib1_to_srw(*dr->u.defaultFormat->condition),
1251 dr->u.defaultFormat->u.v2Addinfo);
1256 #if YAZ_HAS_MK_SURROGATE
1258 static void yazproxy_mk_sru_surrogate(ODR o, Z_SRW_record *record, int pos,
1259 int code, const char *details)
1261 const char *message = yaz_diag_srw_str(code);
1264 len += strlen(message);
1266 len += strlen(details);
1268 record->recordData_buf = (char *) odr_malloc(o, len);
1270 sprintf(record->recordData_buf, "<diagnostic "
1271 "xmlns=\"http://www.loc.gov/zing/srw/diagnostic/\">\n"
1272 " <uri>info:srw/diagnostic/1/%d</uri>\n", code);
1274 sprintf(record->recordData_buf + strlen(record->recordData_buf),
1275 " <details>%s</details>\n", details);
1277 sprintf(record->recordData_buf + strlen(record->recordData_buf),
1278 " <message>%s</message>\n", message);
1279 sprintf(record->recordData_buf + strlen(record->recordData_buf),
1281 record->recordData_len = strlen(record->recordData_buf);
1282 record->recordPosition = odr_intdup(o, pos);
1283 record->recordSchema = odr_strdup(o, "info:srw/schema/1/diagnostics-v1.1");
1287 int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
1289 ODR o = odr_encode();
1290 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1291 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1293 srw_res->numberOfRecords = odr_intdup (o, hits);
1294 if (records && records->which == Z_Records_DBOSD)
1296 srw_res->num_records =
1297 records->u.databaseOrSurDiagnostics->num_records;
1299 srw_res->records = (Z_SRW_record *)
1300 odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
1301 for (i = 0; i < srw_res->num_records; i++)
1303 Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
1304 if (npr->which != Z_NamePlusRecord_databaseRecord)
1306 #if YAZ_HAS_MK_SURROGATE
1307 yaz_mk_sru_surrogate(
1308 o, srw_res->records + i, i+start,
1309 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
1311 yazproxy_mk_sru_surrogate(
1312 o, srw_res->records + i, i+start,
1313 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
1317 Z_External *r = npr->u.databaseRecord;
1319 if (r->which == Z_External_octet
1320 && !oid_oidcmp(r->direct_reference, yaz_oid_recsyn_xml))
1322 srw_res->records[i].recordSchema = m_schema;
1323 srw_res->records[i].recordPacking = m_s2z_packing;
1324 srw_res->records[i].recordData_buf = (char*)
1325 r->u.octet_aligned->buf;
1326 srw_res->records[i].recordData_len = r->u.octet_aligned->len;
1327 srw_res->records[i].recordPosition = odr_intdup(o, i+start);
1331 #if YAZ_HAS_MK_SURROGATE
1332 yaz_mk_sru_surrogate(
1333 o, srw_res->records + i, i+start,
1334 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
1336 yazproxy_mk_sru_surrogate(
1337 o, srw_res->records + i, i+start,
1338 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
1343 if (records && records->which == Z_Records_NSD)
1346 http_code = z_to_srw_diag(odr_encode(), srw_res,
1347 records->u.nonSurrogateDiagnostic);
1349 return send_http_response(http_code);
1351 return send_srw_response(srw_pdu);
1355 int Yaz_Proxy::send_to_srw_client_ok(Z_ListEntries *entries)
1357 ODR o = odr_encode();
1358 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_scan_response);
1359 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
1361 if (entries && entries->num_entries > 0)
1363 srw_res->num_terms = entries->num_entries;
1365 srw_res->terms = (Z_SRW_scanTerm *)
1366 odr_malloc(o, srw_res->num_terms * sizeof(Z_SRW_scanTerm));
1367 for (i = 0; i < srw_res->num_terms; i++)
1369 if (entries->entries[i]->which == Z_Entry_termInfo)
1371 switch(entries->entries[i]->u.termInfo->term->which)
1373 case Z_Term_general:
1374 srw_res->terms[i].value = odr_strdupn(o,
1375 (char *) entries->entries[i]->u.termInfo->term->u.general->buf,
1376 entries->entries[i]->u.termInfo->term->u.general->len);
1379 srw_res->terms[i].value = NULL;
1381 if (entries->entries[i]->u.termInfo->globalOccurrences != NULL)
1382 srw_res->terms[i].numberOfRecords = odr_intdup(o,
1383 *entries->entries[i]->u.termInfo->globalOccurrences);
1385 srw_res->terms[i].numberOfRecords = NULL;
1386 if (entries->entries[i]->u.termInfo->displayTerm != NULL)
1387 srw_res->terms[i].displayTerm = odr_strdup(o,
1388 entries->entries[i]->u.termInfo->displayTerm);
1390 srw_res->terms[i].displayTerm = NULL;
1391 srw_res->terms[i].whereInList = NULL;
1395 if (entries && entries->num_nonsurrogateDiagnostics > 0)
1398 http_code = z_to_srw_diag(odr_encode(), srw_res,
1399 entries->nonsurrogateDiagnostics[0]);
1401 return send_http_response(http_code);
1403 return send_srw_response(srw_pdu);
1407 int Yaz_Proxy::send_srw_search_response(Z_SRW_diagnostic *diagnostics,
1408 int num_diagnostics, int http_code /* = 200 */)
1410 ODR o = odr_encode();
1411 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
1412 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
1414 srw_res->num_diagnostics = num_diagnostics;
1415 srw_res->diagnostics = diagnostics;
1416 return send_srw_response(srw_pdu, http_code);
1419 int Yaz_Proxy::send_srw_scan_response(Z_SRW_diagnostic *diagnostics,
1420 int num_diagnostics, int http_code /* = 200 */)
1422 ODR o = odr_encode();
1423 Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_scan_response);
1424 Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
1426 srw_res->num_diagnostics = num_diagnostics;
1427 srw_res->diagnostics = diagnostics;
1428 return send_srw_response(srw_pdu, http_code);
1431 int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
1432 int num_diagnostics)
1434 int http_status = 404;
1435 Yaz_ProxyConfig *cfg = check_reconfigure();
1439 char *b = cfg->get_explain_doc(odr_encode(), 0 /* target */,
1440 m_s2z_database, &len, &http_status);
1443 Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
1444 Z_SRW_explainResponse *er = res->u.explain_response;
1446 er->record.recordData_buf = b;
1447 er->record.recordData_len = len;
1448 er->record.recordPacking = m_s2z_packing;
1449 er->record.recordSchema = odr_strdup(odr_encode(),
1450 "http://explain.z3950.org/dtd/2.0/");
1452 er->diagnostics = diagnostics;
1453 er->num_diagnostics = num_diagnostics;
1454 return send_srw_response(res);
1457 return send_http_response(http_status);
1460 int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
1464 if (apdu->which == Z_APDU_initResponse)
1466 Z_InitResponse *res = apdu->u.initResponse;
1467 if (*res->result == 0)
1469 send_to_srw_client_error(3, 0);
1471 else if (m_s2z_search_apdu)
1473 handle_incoming_Z_PDU(m_s2z_search_apdu);
1475 else if (m_s2z_scan_apdu)
1477 handle_incoming_Z_PDU(m_s2z_scan_apdu);
1481 send_srw_explain_response(0, 0);
1484 else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
1486 m_s2z_search_apdu = 0;
1487 Z_SearchResponse *res = apdu->u.searchResponse;
1488 m_s2z_hit_count = *res->resultCount;
1489 if (res->records && res->records->which == Z_Records_NSD)
1491 send_to_srw_client_ok(0, res->records, 1);
1493 else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
1496 Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
1498 if (*pr->resultSetStartPoint <= m_s2z_hit_count)
1500 if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
1502 *pr->numberOfRecordsRequested =
1503 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
1505 handle_incoming_Z_PDU(m_s2z_present_apdu);
1509 m_s2z_present_apdu = 0;
1510 send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
1513 else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
1516 *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
1518 m_s2z_present_apdu = 0;
1519 Z_PresentResponse *res = apdu->u.presentResponse;
1520 send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
1522 else if (m_s2z_scan_apdu && apdu->which == Z_APDU_scanResponse)
1524 Z_ScanResponse *res = apdu->u.scanResponse;
1525 send_to_srw_client_ok(res->entries);
1531 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
1532 yaz_log(YLOG_LOG, "%sSending %s to client", m_session_str,
1534 int r = send_Z_PDU(apdu, &len);
1535 m_bytes_sent += len;
1536 m_bw_stat.add_bytes(len);
1543 int Yaz_Proxy::send_to_client(Z_APDU *apdu)
1545 int kill_session = 0;
1546 Z_ReferenceId **new_id = get_referenceIdP(apdu);
1549 *new_id = m_referenceId;
1551 if (apdu->which == Z_APDU_searchResponse)
1553 Z_SearchResponse *sr = apdu->u.searchResponse;
1554 Z_Records *p = sr->records;
1555 if (p && p->which == Z_Records_NSD)
1557 Z_DiagRec dr, *dr_p = &dr;
1558 dr.which = Z_DiagRec_defaultFormat;
1559 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1561 *sr->searchStatus = 0;
1562 display_diagrecs(&dr_p, 1);
1566 if (p && p->which == Z_Records_DBOSD)
1570 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1573 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1574 if (m_marcxml_mode == marcxml)
1575 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1578 convert_records_charset(p->u.databaseOrSurDiagnostics,
1580 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1584 if (sr->resultCount)
1586 yaz_log(YLOG_LOG, "%s" ODR_INT_PRINTF " hits", m_session_str,
1588 if (*sr->resultCount < 0)
1590 m_flag_invalid_session = 1;
1593 *sr->searchStatus = 0;
1595 create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
1596 *sr->resultCount = 0;
1601 else if (apdu->which == Z_APDU_presentResponse)
1603 Z_PresentResponse *sr = apdu->u.presentResponse;
1604 Z_Records *p = sr->records;
1605 if (p && p->which == Z_Records_NSD)
1607 Z_DiagRec dr, *dr_p = &dr;
1608 dr.which = Z_DiagRec_defaultFormat;
1609 dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
1610 if (*sr->presentStatus == Z_PresentStatus_success)
1611 *sr->presentStatus = Z_PresentStatus_failure;
1612 display_diagrecs(&dr_p, 1);
1614 if (p && p->which == Z_Records_DBOSD)
1618 || m_usemarcon_ini_stage1 || m_usemarcon_ini_stage2
1621 convert_to_frontend_type(p->u.databaseOrSurDiagnostics);
1622 if (m_marcxml_mode == marcxml)
1623 convert_to_marcxml(p->u.databaseOrSurDiagnostics,
1626 convert_records_charset(p->u.databaseOrSurDiagnostics,
1628 if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
1632 else if (apdu->which == Z_APDU_initResponse)
1634 //Get and check negotiation record
1635 //from init response.
1636 handle_charset_lang_negotiation(apdu);
1638 if (m_initRequest_options)
1641 (Odr_bitmask *)odr_malloc(odr_encode(),
1642 sizeof(Odr_bitmask));
1643 ODR_MASK_ZERO(nopt);
1646 for (i = 0; i<24; i++)
1647 if (ODR_MASK_GET(m_initRequest_options, i) &&
1648 ODR_MASK_GET(apdu->u.initResponse->options, i))
1649 ODR_MASK_SET(nopt, i);
1650 apdu->u.initResponse->options = nopt;
1652 if (m_initRequest_version)
1654 Z_ProtocolVersion *nopt =
1655 (Odr_bitmask *)odr_malloc(odr_encode(),
1656 sizeof(Odr_bitmask));
1657 ODR_MASK_ZERO(nopt);
1660 for (i = 0; i<8; i++)
1661 if (ODR_MASK_GET(m_initRequest_version, i) &&
1662 ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
1663 ODR_MASK_SET(nopt, i);
1664 apdu->u.initResponse->protocolVersion = nopt;
1666 apdu->u.initResponse->preferredMessageSize =
1667 odr_intdup(odr_encode(),
1668 m_client->m_initResponse_preferredMessageSize >
1669 m_initRequest_preferredMessageSize ?
1670 m_initRequest_preferredMessageSize :
1671 m_client->m_initResponse_preferredMessageSize);
1672 apdu->u.initResponse->maximumRecordSize =
1673 odr_intdup(odr_encode(),
1674 m_client->m_initResponse_maximumRecordSize >
1675 m_initRequest_maximumRecordSize ?
1676 m_initRequest_maximumRecordSize :
1677 m_client->m_initResponse_maximumRecordSize);
1680 int r = send_PDU_convert(apdu);
1687 m_parent->pre_init();
1692 void Yaz_ProxyClient::set_idAuthentication(Z_APDU *apdu)
1694 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1696 odr_reset(m_idAuthentication_odr);
1697 z_IdAuthentication(m_idAuthentication_odr, &t, 1, 0);
1698 m_idAuthentication_ber_buf =
1699 odr_getbuf(m_idAuthentication_odr,
1700 &m_idAuthentication_ber_size, 0);
1703 bool Yaz_ProxyClient::compare_charset(Z_APDU *apdu)
1708 bool Yaz_ProxyClient::compare_idAuthentication(Z_APDU *apdu)
1710 Z_IdAuthentication *t = apdu->u.initRequest->idAuthentication;
1711 ODR odr = odr_createmem(ODR_ENCODE);
1713 z_IdAuthentication(odr, &t, 1, 0);
1715 char *buf = odr_getbuf(odr, &sz, 0);
1716 if (buf && m_idAuthentication_ber_buf
1717 && sz == m_idAuthentication_ber_size
1718 && !memcmp(m_idAuthentication_ber_buf, buf, sz))
1724 if (!buf && !m_idAuthentication_ber_buf)
1729 int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
1732 const char *apdu_name_tmp = apdu_name(apdu);
1733 int r = send_Z_PDU(apdu, &len);
1734 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
1735 yaz_log(YLOG_LOG, "%sSending %s to %s %d bytes",
1737 apdu_name_tmp, get_hostname(), len);
1738 m_bytes_sent += len;
1742 Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
1744 if (apdu->which == Z_APDU_presentRequest)
1746 Z_PresentRequest *pr = apdu->u.presentRequest;
1747 int toget = *pr->numberOfRecordsRequested;
1748 int start = *pr->resultSetStartPoint;
1750 yaz_log(YLOG_LOG, "%sPresent %s %d+%d", m_session_str,
1751 pr->resultSetId, start, toget);
1753 if (*m_parent->m_optimize == '0')
1756 if (!m_client->m_last_resultSetId)
1758 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1759 new_apdu->u.presentResponse->records =
1760 create_nonSurrogateDiagnostics(
1762 YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1764 send_to_client(new_apdu);
1767 if (start < 1 || toget < 0)
1769 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1770 new_apdu->u.presentResponse->records =
1771 create_nonSurrogateDiagnostics(
1773 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1775 send_to_client(new_apdu);
1778 if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
1780 if (start+toget-1 > m_client->m_last_resultCount)
1782 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1783 new_apdu->u.presentResponse->records =
1784 create_nonSurrogateDiagnostics(
1786 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1788 send_to_client(new_apdu);
1791 Z_NamePlusRecordList *npr;
1793 yaz_log(YLOG_LOG, "%sCache lookup %d+%d syntax=%s",
1794 m_session_str, start, toget, yaz_z3950oid_to_str(
1795 pr->preferredRecordSyntax, &oclass));
1797 if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
1798 pr->preferredRecordSyntax,
1799 pr->recordComposition))
1801 yaz_log(YLOG_LOG, "%sReturned cached records for present request",
1803 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
1804 new_apdu->u.presentResponse->referenceId = pr->referenceId;
1806 new_apdu->u.presentResponse->numberOfRecordsReturned
1807 = odr_intdup(odr_encode(), toget);
1809 new_apdu->u.presentResponse->records = (Z_Records*)
1810 odr_malloc(odr_encode(), sizeof(Z_Records));
1811 new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
1812 new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
1813 new_apdu->u.presentResponse->nextResultSetPosition =
1814 odr_intdup(odr_encode(), start+toget);
1816 send_to_client(new_apdu);
1822 if (apdu->which != Z_APDU_searchRequest)
1824 Z_SearchRequest *sr = apdu->u.searchRequest;
1825 Yaz_Z_Query *this_query = new Yaz_Z_Query;
1826 Yaz_Z_Databases this_databases;
1828 this_databases.set(sr->num_databaseNames, (const char **)
1831 this_query->set_Z_Query(sr->query);
1833 // Check for non-negative piggyback params.
1834 if (*sr->smallSetUpperBound < 0
1835 || *sr->largeSetLowerBound < 0
1836 || *sr->mediumSetPresentNumber < 0)
1838 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1839 // Not a present request.. But can't find better diagnostic
1840 new_apdu->u.searchResponse->records =
1841 create_nonSurrogateDiagnostics(
1843 YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
1844 send_to_client(new_apdu);
1848 char query_str[4096];
1849 this_query->print(query_str, sizeof(query_str)-1);
1850 yaz_log(YLOG_LOG, "%sSearch %s", m_session_str, query_str);
1852 if (*m_parent->m_optimize != '0' &&
1853 m_client->m_last_ok && m_client->m_last_query &&
1854 m_client->m_last_query->match(this_query) &&
1855 !strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
1856 m_client->m_last_databases.match(this_databases))
1859 if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
1860 m_client->m_last_resultCount < *sr->largeSetLowerBound)
1862 Z_NamePlusRecordList *npr;
1863 int toget = *sr->mediumSetPresentNumber;
1864 Z_RecordComposition *comp = 0;
1866 if (toget > m_client->m_last_resultCount)
1867 toget = m_client->m_last_resultCount;
1869 if (sr->mediumSetElementSetNames)
1871 comp = (Z_RecordComposition *)
1872 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1873 comp->which = Z_RecordComp_simple;
1874 comp->u.simple = sr->mediumSetElementSetNames;
1877 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1878 sr->preferredRecordSyntax, comp))
1880 yaz_log(YLOG_LOG, "%sReturned cached records for medium set",
1882 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1883 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1884 new_apdu->u.searchResponse->resultCount =
1885 &m_client->m_last_resultCount;
1887 new_apdu->u.searchResponse->numberOfRecordsReturned
1888 = odr_intdup(odr_encode(), toget);
1890 new_apdu->u.searchResponse->presentStatus =
1891 odr_intdup(odr_encode(), Z_PresentStatus_success);
1892 new_apdu->u.searchResponse->records = (Z_Records*)
1893 odr_malloc(odr_encode(), sizeof(Z_Records));
1894 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1895 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1896 new_apdu->u.searchResponse->nextResultSetPosition =
1897 odr_intdup(odr_encode(), toget+1);
1898 send_to_client(new_apdu);
1904 // send present request (medium size)
1905 yaz_log(YLOG_LOG, "%sOptimizing search for medium set",
1908 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1909 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1910 pr->referenceId = sr->referenceId;
1911 pr->resultSetId = sr->resultSetName;
1912 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1913 *pr->numberOfRecordsRequested = toget;
1914 pr->recordComposition = comp;
1915 m_client->m_sr_transform = 1;
1919 else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
1920 m_client->m_last_resultCount <= 0)
1922 // large set. Return pseudo-search response immediately
1923 yaz_log(YLOG_LOG, "%sOptimizing search for large set",
1925 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1926 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1927 new_apdu->u.searchResponse->resultCount =
1928 &m_client->m_last_resultCount;
1929 send_to_client(new_apdu);
1934 Z_NamePlusRecordList *npr;
1935 int toget = m_client->m_last_resultCount;
1936 Z_RecordComposition *comp = 0;
1938 // send a present request (small set)
1940 if (sr->smallSetElementSetNames)
1942 comp = (Z_RecordComposition *)
1943 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
1944 comp->which = Z_RecordComp_simple;
1945 comp->u.simple = sr->smallSetElementSetNames;
1948 if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
1949 sr->preferredRecordSyntax, comp))
1951 yaz_log(YLOG_LOG, "%sReturned cached records for small set",
1953 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
1954 new_apdu->u.searchResponse->referenceId = sr->referenceId;
1955 new_apdu->u.searchResponse->resultCount =
1956 &m_client->m_last_resultCount;
1958 new_apdu->u.searchResponse->numberOfRecordsReturned
1959 = odr_intdup(odr_encode(), toget);
1961 new_apdu->u.searchResponse->presentStatus =
1962 odr_intdup(odr_encode(), Z_PresentStatus_success);
1963 new_apdu->u.searchResponse->records = (Z_Records*)
1964 odr_malloc(odr_encode(), sizeof(Z_Records));
1965 new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
1966 new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
1967 new_apdu->u.searchResponse->nextResultSetPosition =
1968 odr_intdup(odr_encode(), toget+1);
1969 send_to_client(new_apdu);
1974 yaz_log(YLOG_LOG, "%sOptimizing search for small set",
1976 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
1977 Z_PresentRequest *pr = new_apdu->u.presentRequest;
1978 pr->referenceId = sr->referenceId;
1979 pr->resultSetId = sr->resultSetName;
1980 pr->preferredRecordSyntax = sr->preferredRecordSyntax;
1981 *pr->numberOfRecordsRequested = toget;
1982 pr->recordComposition = comp;
1983 m_client->m_sr_transform = 1;
1988 else // query doesn't match
1990 delete m_client->m_last_query;
1991 m_client->m_last_query = this_query;
1992 m_client->m_last_ok = 0;
1993 m_client->m_cache.clear();
1994 m_client->m_resultSetStartPoint = 0;
1996 xfree(m_client->m_last_resultSetId);
1997 m_client->m_last_resultSetId = xstrdup(sr->resultSetName);
1999 m_client->m_last_databases.set(sr->num_databaseNames,
2000 (const char **) sr->databaseNames);
2006 void Yaz_Proxy::inc_request_no()
2009 char *cp = m_session_str + strlen(m_session_str)-1;
2012 while (*cp && *cp != ' ')
2015 sprintf(cp+1, "%d ", m_request_no);
2018 void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
2022 m_bytes_recv += len;
2024 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2025 yaz_log(YLOG_LOG, "%sReceiving %s from client %d bytes",
2026 m_session_str, gdu_name(apdu), len);
2029 // try to make a _bad_ attribute set ID .. Don't enable this in prod.
2030 if (apdu->which == Z_GDU_Z3950
2031 && apdu->u.z3950->which == Z_APDU_searchRequest)
2033 Z_SearchRequest *req = apdu->u.z3950->u.searchRequest;
2034 if (req->query && req->query->which == Z_Query_type_1)
2036 Z_RPNQuery *rpnquery = req->query->u.type_1;
2037 if (rpnquery->attributeSetId)
2039 rpnquery->attributeSetId[0] = -2;
2040 rpnquery->attributeSetId[1] = -1;
2041 yaz_log(YLOG_WARN, "%sBAD FIXUP TEST", m_session_str);
2047 #if HAVE_GETTIMEOFDAY
2048 gettimeofday((struct timeval *) m_time_tv, 0);
2050 m_bw_stat.add_bytes(len);
2051 m_pdu_stat.add_bytes(1);
2053 GDU *gdu = new GDU(apdu);
2055 if (gdu->get() == 0)
2058 yaz_log(YLOG_LOG, "%sUnable to encode package", m_session_str);
2063 m_in_queue.enqueue(gdu);
2064 recv_GDU_more(false);
2067 void Yaz_Proxy::HTTP_Forwarded(Z_GDU *z_gdu)
2069 if (z_gdu->which == Z_GDU_HTTP_Request)
2071 Z_HTTP_Request *hreq = z_gdu->u.HTTP_Request;
2072 const char *x_forwarded_for =
2073 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
2074 if (x_forwarded_for)
2077 m_peername = (char*) xmalloc(strlen(x_forwarded_for)+5);
2078 sprintf(m_peername, "tcp:%s", x_forwarded_for);
2080 yaz_log(YLOG_LOG, "%sHTTP Forwarded from %s", m_session_str,
2082 if (m_log_mask & PROXY_LOG_IP_CLIENT)
2083 sprintf(m_session_str, "%ld:%d %.80s %d ",
2084 (long) time(0), m_session_no, m_peername, m_request_no);
2086 sprintf(m_session_str, "%ld:%d %d ",
2087 (long) time(0), m_session_no, m_request_no);
2092 void Yaz_Proxy::connect_stat(bool &block, int &reduce)
2095 m_parent->m_connect.cleanup(false);
2096 m_parent->m_connect.add_connect(m_peername);
2098 int connect_total = m_parent->m_connect.get_total(m_peername);
2099 int max_connect = m_parent->m_max_connect;
2101 if (max_connect && connect_total > max_connect)
2103 yaz_log(YLOG_LOG, "%sconnect not accepted total=%d max=%d",
2104 m_session_str, connect_total, max_connect);
2109 yaz_log(YLOG_LOG, "%sconnect accepted total=%d", m_session_str,
2112 int limit_connect = m_parent->m_limit_connect;
2114 reduce = connect_total / limit_connect;
2119 void Yaz_Proxy::recv_GDU_reduce(GDU *gdu)
2121 HTTP_Forwarded(gdu->get());
2125 if (m_request_no == 1)
2129 connect_stat(block, reduce);
2133 m_timeout_mode = timeout_busy;
2139 int bw_total = m_bw_stat.get_total();
2140 int pdu_total = m_pdu_stat.get_total();
2141 int search_total = m_search_stat.get_total();
2143 assert(m_timeout_mode == timeout_busy);
2144 assert(m_timeout_gdu == 0);
2147 reduce += search_total / m_search_max;
2149 reduce += (bw_total/m_bw_max);
2152 if (pdu_total > m_pdu_max)
2154 int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
2155 reduce = (reduce > nreduce) ? reduce : nreduce;
2161 /* uncomment to force a big reduce */
2162 m_timeout_mode = timeout_reduce;
2163 m_timeout_gdu = gdu;
2164 timeout(3); // call us reduce seconds later
2169 yaz_log(YLOG_LOG, "%sdelay=%d bw=%d pdu=%d search=%d limit-bw=%d limit-pdu=%d limit-search=%d",
2170 m_session_str, reduce, bw_total, pdu_total, search_total,
2171 m_bw_max, m_pdu_max, m_search_max);
2173 m_timeout_mode = timeout_reduce;
2174 m_timeout_gdu = gdu;
2175 timeout(reduce); // call us reduce seconds later
2178 recv_GDU_normal(gdu);
2181 void Yaz_Proxy::recv_GDU_more(bool normal)
2184 if (normal && m_timeout_mode == timeout_busy)
2185 m_timeout_mode = timeout_normal;
2186 while (m_timeout_mode == timeout_normal && (g = m_in_queue.dequeue()))
2188 m_timeout_mode = timeout_busy;
2196 void Yaz_Proxy::recv_GDU_normal(GDU *gdu)
2199 gdu->move_away_gdu(odr_decode(), &apdu);
2202 if (apdu->which == Z_GDU_Z3950)
2203 handle_incoming_Z_PDU(apdu->u.z3950);
2204 else if (apdu->which == Z_GDU_HTTP_Request)
2205 handle_incoming_HTTP(apdu->u.HTTP_Request);
2208 void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
2210 if (m_max_record_retrieve)
2212 if (apdu->which == Z_APDU_presentRequest)
2214 Z_PresentRequest *pr = apdu->u.presentRequest;
2215 if (pr->numberOfRecordsRequested &&
2216 *pr->numberOfRecordsRequested > m_max_record_retrieve)
2217 *pr->numberOfRecordsRequested = m_max_record_retrieve;
2222 void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu)
2224 if (apdu->which == Z_APDU_initRequest)
2226 if (m_initRequest_options &&
2227 !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) &&
2228 (m_proxy_negotiation_charset || m_proxy_negotiation_lang))
2230 // There is no negotiation proposal from
2231 // client's side. OK. The proxy negotiation
2233 Z_InitRequest *initRequest = apdu->u.initRequest;
2234 Z_OtherInformation **otherInfo;
2235 Z_OtherInformationUnit *oi;
2236 get_otherInfoAPDU(apdu, &otherInfo);
2237 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2240 ODR_MASK_SET(initRequest->options,
2241 Z_Options_negotiationModel);
2242 oi->which = Z_OtherInfo_externallyDefinedInfo;
2243 oi->information.externallyDefinedInfo =
2244 yaz_set_proposal_charneg(odr_encode(),
2245 (const char**)&m_proxy_negotiation_charset,
2246 m_proxy_negotiation_charset ? 1:0,
2247 (const char**)&m_proxy_negotiation_lang,
2248 m_proxy_negotiation_lang ? 1:0,
2252 else if (m_initRequest_options &&
2253 ODR_MASK_GET(m_initRequest_options,
2254 Z_Options_negotiationModel) &&
2255 m_charset_converter->get_target_query_charset())
2257 yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s",
2259 m_charset_converter->get_target_query_charset());
2260 Z_InitRequest *initRequest = apdu->u.initRequest;
2261 Z_CharSetandLanguageNegotiation *negotiation =
2262 yaz_get_charneg_record (initRequest->otherInfo);
2264 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2266 NMEM nmem = nmem_create();
2267 char **charsets = 0;
2268 int num_charsets = 0;
2272 yaz_get_proposal_charneg (nmem, negotiation,
2273 &charsets, &num_charsets,
2274 &langs, &num_langs, &selected);
2276 for (i = 0; i<num_charsets; i++)
2277 yaz_log(YLOG_LOG, "%scharset %s", m_session_str,
2279 for (i = 0; i<num_langs; i++)
2280 yaz_log(YLOG_LOG, "%slang %s", m_session_str,
2283 const char *t_charset =
2284 m_charset_converter->get_target_query_charset();
2285 // sweep through charsets and pick the first supported
2287 for (i = 0; i<num_charsets; i++)
2289 const char *c_charset = charsets[i];
2290 if (!odr_set_charset(odr_decode(), t_charset, c_charset))
2293 if (i != num_charsets)
2295 // got one .. set up ODR for reverse direction
2296 const char *c_charset = charsets[i];
2297 odr_set_charset(odr_encode(), c_charset, t_charset);
2298 m_charset_converter->set_client_query_charset(c_charset);
2299 m_charset_converter->set_client_charset_selected(selected);
2302 ODR_MASK_CLEAR(m_initRequest_options,
2303 Z_Options_negotiationModel);
2304 yaz_del_charneg_record(&initRequest->otherInfo);
2308 yaz_log(YLOG_WARN, "%sUnable to decode charset package",
2312 else if (m_charset_converter->get_target_query_charset() &&
2313 m_proxy_negotiation_default_charset)
2315 m_charset_converter->
2316 set_client_query_charset(m_proxy_negotiation_default_charset);
2319 else if (apdu->which == Z_APDU_initResponse)
2321 Z_InitResponse *initResponse = apdu->u.initResponse;
2322 Z_OtherInformation **otherInfo;
2323 get_otherInfoAPDU(apdu, &otherInfo);
2325 Z_CharSetandLanguageNegotiation *charneg = 0;
2327 if (otherInfo && *otherInfo &&
2328 ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)
2329 && (charneg = yaz_get_charneg_record(*otherInfo)))
2335 yaz_get_response_charneg(m_referenceId_mem, charneg,
2336 &charset, &lang, &selected);
2338 yaz_log(YLOG_LOG, "%sAccepted charset - '%s' and lang - '%s'",
2339 m_session_str, (charset)?charset:"none", (lang)?lang:"none");
2341 if (m_initRequest_options &&
2342 ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel))
2344 yaz_log(YLOG_LOG, "%sClient's negotiation record in use",
2347 else if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2349 // negotiation-charset, negotiation-lang
2350 // elements of config file in use.
2352 yaz_log(YLOG_LOG, "%sProxy's negotiation record in use",
2355 // clear negotiation option.
2356 ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel);
2358 // Delete negotiation (charneg-3) entry.
2359 yaz_del_charneg_record(otherInfo);
2364 if (m_proxy_negotiation_charset || m_proxy_negotiation_lang)
2366 yaz_log(YLOG_LOG, "%sTarget did not honor negotiation",
2369 else if (m_charset_converter->get_client_query_charset())
2371 Z_OtherInformation **otherInfo;
2372 Z_OtherInformationUnit *oi;
2373 get_otherInfoAPDU(apdu, &otherInfo);
2374 oi = update_otherInformation(otherInfo, 1, NULL, 0, 0);
2377 ODR_MASK_SET(initResponse->options,
2378 Z_Options_negotiationModel);
2379 if (m_initRequest_options)
2380 ODR_MASK_SET(m_initRequest_options,
2381 Z_Options_negotiationModel);
2383 oi->which = Z_OtherInfo_externallyDefinedInfo;
2384 oi->information.externallyDefinedInfo =
2385 yaz_set_response_charneg(
2387 m_charset_converter->get_client_query_charset(),
2389 m_charset_converter->get_client_charset_selected());
2396 Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
2398 const char *addinfo)
2400 Z_Records *rec = (Z_Records *)
2401 odr_malloc (odr, sizeof(*rec));
2402 Odr_int *err = (Odr_int *)
2403 odr_malloc (odr, sizeof(*err));
2404 Z_DiagRec *drec = (Z_DiagRec *)
2405 odr_malloc (odr, sizeof(*drec));
2406 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2407 odr_malloc (odr, sizeof(*dr));
2409 rec->which = Z_Records_NSD;
2410 rec->u.nonSurrogateDiagnostic = dr;
2411 dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
2412 dr->condition = err;
2413 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2414 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2418 Z_ListEntries *Yaz_Proxy::create_nonSurrogateDiagnostics2(ODR odr,
2420 const char *addinfo)
2422 Z_ListEntries *rec = (Z_ListEntries *)
2423 odr_malloc (odr, sizeof(*rec));
2424 Odr_int *err = (Odr_int *)
2425 odr_malloc (odr, sizeof(*err));
2426 Z_DiagRec *drec = (Z_DiagRec *)
2427 odr_malloc (odr, sizeof(*drec));
2428 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
2429 odr_malloc (odr, sizeof(*dr));
2431 drec->which = Z_DiagRec_defaultFormat;
2432 drec->u.defaultFormat = dr;
2433 rec->num_entries = 0;
2434 rec->entries = NULL;
2435 rec->num_nonsurrogateDiagnostics = 1;
2436 rec->nonsurrogateDiagnostics =
2437 (Z_DiagRec **)odr_malloc(odr, sizeof(Z_DiagRec *));
2438 rec->nonsurrogateDiagnostics[0] = drec;
2439 dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
2440 dr->condition = err;
2441 dr->which = Z_DefaultDiagFormat_v2Addinfo;
2442 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
2446 Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
2448 if (apdu->which == Z_APDU_searchRequest &&
2449 apdu->u.searchRequest->query &&
2450 apdu->u.searchRequest->query->which == Z_Query_type_104 &&
2451 apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
2453 Z_RPNQuery *rpnquery = 0;
2454 Z_SearchRequest *sr = apdu->u.searchRequest;
2457 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2458 sr->query->u.type_104->u.cql);
2460 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
2461 &rpnquery, odr_encode(),
2464 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2467 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2468 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2470 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2471 new_apdu->u.searchResponse->records =
2472 create_nonSurrogateDiagnostics(odr_encode(),
2473 yaz_diag_srw_to_bib1(r),
2475 *new_apdu->u.searchResponse->searchStatus = 0;
2477 send_to_client(new_apdu);
2483 sr->query->which = Z_Query_type_1;
2484 sr->query->u.type_1 = rpnquery;
2488 else if (apdu->which == Z_APDU_scanRequest)
2490 Z_RPNQuery *rpnquery = 0;
2491 Z_ScanRequest *sr = apdu->u.scanRequest;
2494 yaz_log(YLOG_LOG, "%sCQL: %s", m_session_str,
2495 sr->termListAndStartPoint->term->u.characterString);
2497 int r = m_cql2rpn.query_transform(sr->termListAndStartPoint->term->u.characterString,
2498 &rpnquery, odr_encode(),
2501 yaz_log(YLOG_LOG, "%sNo CQL to RPN table", m_session_str);
2504 yaz_log(YLOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
2505 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_scanResponse);
2507 new_apdu->u.scanResponse->referenceId = sr->referenceId;
2508 new_apdu->u.scanResponse->entries =
2509 create_nonSurrogateDiagnostics2(odr_encode(),
2510 yaz_diag_srw_to_bib1(r),
2512 *new_apdu->u.scanResponse->scanStatus = Z_Scan_failure;
2514 send_to_client(new_apdu);
2520 sr->attributeSet = rpnquery->attributeSetId;
2521 if (rpnquery->RPNStructure->which == Z_RPNStructure_simple)
2522 sr->termListAndStartPoint = rpnquery->RPNStructure->u.simple->u.attributesPlusTerm;
2529 Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu)
2531 if (apdu->which == Z_APDU_searchRequest &&
2532 apdu->u.searchRequest->query)
2534 if (apdu->u.searchRequest->query->which == Z_Query_type_1
2535 || apdu->u.searchRequest->query->which == Z_Query_type_101)
2538 m_charset_converter->set_client_query_charset("UTF-8");
2539 Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1;
2540 m_charset_converter->convert_type_1(rpnquery, odr_encode());
2543 else if (apdu->which == Z_APDU_scanRequest &&
2544 apdu->u.scanRequest->termListAndStartPoint)
2546 if (apdu->u.scanRequest->termListAndStartPoint->term)
2548 m_charset_converter->set_client_query_charset("UTF-8");
2549 Z_Term *term = apdu->u.scanRequest->termListAndStartPoint->term;
2550 m_charset_converter->convert_term(term, odr_encode());
2556 Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
2558 if (apdu->which == Z_APDU_searchRequest)
2560 Z_SearchRequest *sr = apdu->u.searchRequest;
2564 Yaz_ProxyConfig *cfg = check_reconfigure();
2566 err = cfg->check_query(odr_encode(), m_default_target,
2567 sr->query, &addinfo);
2570 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2572 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2573 new_apdu->u.searchResponse->records =
2574 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2575 *new_apdu->u.searchResponse->searchStatus = 0;
2577 send_to_client(new_apdu);
2582 else if (apdu->which == Z_APDU_scanRequest)
2584 Z_ScanRequest *sr = apdu->u.scanRequest;
2589 Yaz_ProxyConfig *cfg = check_reconfigure();
2590 // Something like this needs to be implemented later:
2592 err = cfg->check_type_1_attributes(odr_encode(), m_default_target,
2593 sr->termListAndStartPoint->attributes, &addinfo);
2597 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_scanResponse);
2599 new_apdu->u.scanResponse->referenceId = sr->referenceId;
2600 new_apdu->u.scanResponse->entries =
2601 create_nonSurrogateDiagnostics2(odr_encode(), err, addinfo);
2602 *new_apdu->u.scanResponse->scanStatus = Z_Scan_failure;
2604 send_to_client(new_apdu);
2613 int Yaz_Proxy::handle_authentication(Z_APDU *apdu)
2615 if (apdu->which != Z_APDU_initRequest)
2616 return 1; // pass if no init request
2617 Z_InitRequest *req = apdu->u.initRequest;
2619 Yaz_ProxyConfig *cfg = check_reconfigure();
2621 return 1; // pass if no config
2624 if (req->idAuthentication == 0)
2626 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2629 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2631 ret = cfg->client_authentication(
2633 req->idAuthentication->u.idPass->userId,
2634 req->idAuthentication->u.idPass->groupId,
2635 req->idAuthentication->u.idPass->password,
2638 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2640 char user[64], pass[64];
2643 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2644 ret = cfg->client_authentication(m_default_target, user, 0, pass,
2648 ret = cfg->client_authentication(m_default_target, 0, 0, 0,
2653 int Yaz_Proxy::handle_global_authentication(Z_APDU *apdu)
2655 if (apdu->which != Z_APDU_initRequest)
2656 return 1; // pass if no init request
2657 Z_InitRequest *req = apdu->u.initRequest;
2659 Yaz_ProxyConfig *cfg = check_reconfigure();
2661 return 1; // pass if no config
2664 if (req->idAuthentication == 0)
2666 ret = cfg->global_client_authentication(0, 0, 0,
2669 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2671 ret = cfg->global_client_authentication(
2672 req->idAuthentication->u.idPass->userId,
2673 req->idAuthentication->u.idPass->groupId,
2674 req->idAuthentication->u.idPass->password,
2677 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2679 char user[64], pass[64];
2682 sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass);
2683 ret = cfg->global_client_authentication(user, 0, pass,
2687 ret = cfg->global_client_authentication(0, 0, 0, m_peername);
2691 Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
2693 m_marcxml_mode = none;
2694 if (apdu->which == Z_APDU_searchRequest)
2696 Z_SearchRequest *sr = apdu->u.searchRequest;
2699 Yaz_ProxyConfig *cfg = check_reconfigure();
2701 Z_RecordComposition rc_temp, *rc = 0;
2702 if (sr->smallSetElementSetNames)
2704 rc_temp.which = Z_RecordComp_simple;
2705 rc_temp.u.simple = sr->smallSetElementSetNames;
2709 if (sr->preferredRecordSyntax)
2710 oid_oidcpy(m_frontend_type, sr->preferredRecordSyntax);
2712 m_frontend_type[0] = -1;
2714 char *stylesheet_name = 0;
2716 err = cfg->check_syntax(odr_encode(),
2718 sr->preferredRecordSyntax, rc,
2719 &addinfo, &stylesheet_name, &m_schema,
2720 &m_backend_type, &m_backend_charset,
2721 &m_usemarcon_ini_stage1,
2722 &m_usemarcon_ini_stage2,
2723 &m_backend_elementset);
2724 if (stylesheet_name)
2726 m_parent->low_socket_close();
2729 if (m_stylesheet_xsp)
2730 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2731 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2734 m_stylesheet_offset = 0;
2735 xfree(stylesheet_name);
2737 m_parent->low_socket_open();
2741 sr->smallSetElementSetNames = 0;
2742 sr->mediumSetElementSetNames = 0;
2743 m_marcxml_mode = marcxml;
2744 sr->preferredRecordSyntax =
2745 yaz_string_to_oid_odr(
2746 yaz_oid_std(), CLASS_RECSYN,
2747 m_backend_type ? m_backend_type : "usmarc",
2752 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
2754 new_apdu->u.searchResponse->referenceId = sr->referenceId;
2755 new_apdu->u.searchResponse->records =
2756 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2757 *new_apdu->u.searchResponse->searchStatus = 0;
2759 send_to_client(new_apdu);
2763 else if (m_backend_type)
2765 sr->preferredRecordSyntax =
2766 yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN,
2767 m_backend_type, odr_encode());
2769 if (m_backend_elementset)
2771 Z_ElementSetNames *esn =
2774 *m_backend_elementset ? m_backend_elementset : 0);
2775 sr->smallSetElementSetNames = esn;
2776 sr->mediumSetElementSetNames = esn;
2779 else if (apdu->which == Z_APDU_presentRequest)
2781 Z_PresentRequest *pr = apdu->u.presentRequest;
2784 Yaz_ProxyConfig *cfg = check_reconfigure();
2786 if (pr->preferredRecordSyntax)
2787 oid_oidcpy(m_frontend_type, pr->preferredRecordSyntax);
2789 m_frontend_type[0] = -1;
2791 char *stylesheet_name = 0;
2793 err = cfg->check_syntax(odr_encode(), m_default_target,
2794 pr->preferredRecordSyntax,
2795 pr->recordComposition,
2796 &addinfo, &stylesheet_name, &m_schema,
2797 &m_backend_type, &m_backend_charset,
2798 &m_usemarcon_ini_stage1,
2799 &m_usemarcon_ini_stage2,
2800 &m_backend_elementset);
2801 if (stylesheet_name)
2803 m_parent->low_socket_close();
2806 if (m_stylesheet_xsp)
2807 xsltFreeStylesheet((xsltStylesheetPtr) m_stylesheet_xsp);
2808 m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
2811 m_stylesheet_offset = 0;
2812 xfree(stylesheet_name);
2814 m_parent->low_socket_open();
2818 pr->recordComposition = 0;
2819 m_marcxml_mode = marcxml;
2821 pr->preferredRecordSyntax =
2822 yaz_string_to_oid_odr(
2823 yaz_oid_std(), CLASS_RECSYN,
2824 m_backend_type ? m_backend_type : "usmarc",
2829 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
2831 new_apdu->u.presentResponse->referenceId = pr->referenceId;
2832 new_apdu->u.presentResponse->records =
2833 create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
2834 *new_apdu->u.presentResponse->presentStatus =
2835 Z_PresentStatus_failure;
2837 send_to_client(new_apdu);
2841 else if (m_backend_type)
2843 pr->preferredRecordSyntax =
2844 yaz_string_to_oid_odr(yaz_oid_std(),
2845 CLASS_RECSYN, m_backend_type,
2848 if (m_backend_elementset)
2850 Z_ElementSetNames *esn =
2853 *m_backend_elementset ? m_backend_elementset : 0);
2854 Z_RecordComposition *comp = (Z_RecordComposition *)
2855 odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
2856 comp->which = Z_RecordComp_simple;
2857 comp->u.simple = esn;
2858 pr->recordComposition = comp;
2864 Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
2868 Z_ElementSetNames *esn = (Z_ElementSetNames *)
2869 odr_malloc(o, sizeof(Z_ElementSetNames));
2870 esn->which = Z_ElementSetNames_generic;
2871 esn->u.generic = odr_strdup(o, schema);
2875 void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db)
2878 Yaz_ProxyConfig *cfg = check_reconfigure();
2880 t = cfg->get_explain_name(db, backend_db);
2882 if (m_client && m_default_target && t && strcmp(m_default_target, t))
2889 xfree(m_default_target);
2890 m_default_target = xstrdup(t);
2894 int Yaz_Proxy::file_access(Z_HTTP_Request *hreq)
2897 if (strcmp(hreq->method, "GET"))
2899 if (hreq->path[0] != '/')
2901 const char *cp = hreq->path;
2904 if (*cp == '/' && strchr("/.", cp[1]))
2909 Yaz_ProxyConfig *cfg = check_reconfigure();
2911 if (!cfg->get_file_access_info(hreq->path+1))
2914 const char *fname = hreq->path+1;
2915 if (stat(fname, &sbuf))
2917 yaz_log(YLOG_LOG|YLOG_ERRNO, "%sstat failed for %s", m_session_str,
2921 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
2923 yaz_log(YLOG_LOG, "%sNot a regular file %s", m_session_str, fname);
2926 if (sbuf.st_size > (off_t) 1000000)
2928 yaz_log(YLOG_WARN, "%sFile %s too large for transfer", m_session_str,
2933 ODR o = odr_encode();
2935 const char *ctype = cfg->check_mime_type(fname);
2936 Z_GDU *gdu = z_get_HTTP_Response(o, 200);
2937 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
2939 hres->version = odr_strdup(o, m_http_version);
2940 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
2941 if (m_http_keepalive)
2942 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
2946 hres->content_len = sbuf.st_size;
2947 hres->content_buf = (char*) odr_malloc(o, hres->content_len);
2948 FILE *f = fopen(fname, "rb");
2951 fread(hres->content_buf, 1, hres->content_len, f);
2958 if (m_log_mask & PROXY_LOG_REQ_CLIENT)
2960 yaz_log(YLOG_LOG, "%sSending file %s to client", m_session_str,
2964 send_GDU(gdu, &len);
2965 recv_GDU_more(true);
2969 void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
2973 odr_destroy(m_s2z_odr_init);
2976 if (m_s2z_odr_search)
2978 odr_destroy(m_s2z_odr_search);
2979 m_s2z_odr_search = 0;
2983 odr_destroy(m_s2z_odr_scan);
2987 m_http_keepalive = 0;
2989 if (!strcmp(hreq->version, "1.0"))
2991 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
2992 if (v && !strcmp(v, "Keep-Alive"))
2993 m_http_keepalive = 1;
2995 m_http_keepalive = 0;
2996 m_http_version = "1.0";
3000 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
3001 if (v && !strcmp(v, "close"))
3002 m_http_keepalive = 0;
3004 m_http_keepalive = 1;
3005 m_http_version = "1.1";
3008 const char *a = z_HTTP_header_lookup(hreq->headers, "Authorization");
3009 char authorization_str[255];
3010 *authorization_str = '\0';
3011 if (a && strncasecmp(a, "Basic ", 6) == 0)
3012 base64_decode(a + 6, authorization_str, 254);
3014 Z_SRW_PDU *srw_pdu = 0;
3015 Z_SOAP *soap_package = 0;
3017 Z_SRW_diagnostic *diagnostic = 0;
3018 int num_diagnostic = 0;
3020 yaz_log(YLOG_LOG, "%s%s %s", m_session_str, hreq->method, hreq->path);
3022 if (file_access(hreq))
3026 else if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
3028 || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
3029 &charset, &diagnostic, &num_diagnostic) == 0)
3031 m_s2z_odr_init = odr_createmem(ODR_ENCODE);
3032 m_s2z_odr_search = odr_createmem(ODR_ENCODE);
3033 m_s2z_odr_scan = odr_createmem(ODR_ENCODE);
3034 m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
3035 m_s2z_init_apdu = 0;
3036 m_s2z_search_apdu = 0;
3037 m_s2z_present_apdu = 0;
3038 m_s2z_scan_apdu = 0;
3040 m_s2z_stylesheet = 0;
3042 Z_IdAuthentication *auth = NULL;
3043 if (srw_pdu->username && !srw_pdu->password)
3045 yaz_log(YLOG_LOG, "username: %s\n", srw_pdu->username);
3046 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
3047 auth->which = Z_IdAuthentication_open;
3048 auth->u.open = odr_strdup(m_s2z_odr_init, srw_pdu->username);
3050 else if (srw_pdu->username && srw_pdu->password)
3052 yaz_log(YLOG_LOG, "username/password: %s/%s\n",
3053 srw_pdu->username, srw_pdu->password);
3054 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
3055 auth->which = Z_IdAuthentication_idPass;
3056 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
3057 auth->u.idPass->groupId = NULL;
3058 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, srw_pdu->password);
3059 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, srw_pdu->username);
3063 if (*authorization_str)
3065 yaz_log(YLOG_LOG, "authorization_str present: %s\n", authorization_str);
3066 auth = (Z_IdAuthentication *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdAuthentication));
3067 auth->which = Z_IdAuthentication_idPass;
3068 auth->u.idPass = (Z_IdPass *) odr_malloc(m_s2z_odr_init, sizeof(Z_IdPass));
3069 auth->u.idPass->groupId = NULL;
3070 char *p = strchr(authorization_str, ':');
3075 auth->u.idPass->password = odr_strdup(m_s2z_odr_init, p);
3077 auth->u.idPass->userId = odr_strdup(m_s2z_odr_init, authorization_str);
3081 if (srw_pdu->which == Z_SRW_searchRetrieve_request)
3084 Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
3086 const char *backend_db = srw_req->database;
3087 srw_get_client(srw_req->database, &backend_db);
3089 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3090 // recordXPath unsupported.
3091 if (srw_req->recordXPath)
3093 yaz_add_srw_diagnostic(odr_decode(),
3094 &diagnostic, &num_diagnostic,
3098 if (srw_req->sort_type != Z_SRW_sort_type_none)
3100 yaz_add_srw_diagnostic(odr_decode(),
3101 &diagnostic, &num_diagnostic,
3105 if (srw_req->stylesheet)
3107 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3109 // set packing for response records ..
3110 if (srw_req->recordPacking &&
3111 !strcmp(srw_req->recordPacking, "xml"))
3112 m_s2z_packing = Z_SRW_recordPacking_XML;
3114 m_s2z_packing = Z_SRW_recordPacking_string;
3118 Z_SRW_PDU *srw_pdu =
3119 yaz_srw_get(odr_encode(),
3120 Z_SRW_searchRetrieve_response);
3121 Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
3123 srw_res->diagnostics = diagnostic;
3124 srw_res->num_diagnostics = num_diagnostic;
3125 send_srw_response(srw_pdu);
3129 // prepare search PDU
3130 m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
3131 Z_APDU_searchRequest);
3132 Z_SearchRequest *z_searchRequest =
3133 m_s2z_search_apdu->u.searchRequest;
3135 z_searchRequest->num_databaseNames = 1;
3136 z_searchRequest->databaseNames = (char**)
3137 odr_malloc(m_s2z_odr_search, sizeof(char *));
3138 z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
3141 // query transformation
3142 Z_Query *query = (Z_Query *)
3143 odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
3144 z_searchRequest->query = query;
3147 #ifdef Z_SRW_query_type_cql
3148 srw_req->query_type == Z_SRW_query_type_cql
3150 !srw_req->queryType || !strcmp(srw_req->queryType, "cql")
3154 Z_External *ext = (Z_External *)
3155 odr_malloc(m_s2z_odr_search, sizeof(*ext));
3156 ext->direct_reference =
3157 odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
3158 ext->indirect_reference = 0;
3159 ext->descriptor = 0;
3160 ext->which = Z_External_CQL;
3161 #ifdef Z_SRW_query_type_cql
3162 ext->u.cql = srw_req->query.cql;
3164 ext->u.cql = srw_req->query;
3167 query->which = Z_Query_type_104;
3168 query->u.type_104 = ext;
3171 #ifdef Z_SRW_query_type_pqf
3172 srw_req->query_type == Z_SRW_query_type_pqf
3174 srw_req->queryType && !strcmp(srw_req->queryType, "pqf")
3178 Z_RPNQuery *RPNquery;
3179 YAZ_PQF_Parser pqf_parser;
3181 pqf_parser = yaz_pqf_create ();
3183 RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
3184 #ifdef Z_SRW_query_type_pqf
3192 const char *pqf_msg;
3194 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
3196 yaz_log(YLOG_LOG, "%*s^\n", ioff+4, "");
3197 yaz_log(YLOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
3199 send_to_srw_client_error(10, 0);
3202 query->which = Z_Query_type_1;
3203 query->u.type_1 = RPNquery;
3205 yaz_pqf_destroy (pqf_parser);
3209 send_to_srw_client_error(7, "query");
3214 m_s2z_present_apdu = 0;
3216 if (srw_req->maximumRecords)
3217 max = *srw_req->maximumRecords;
3219 if (srw_req->startRecord)
3220 start = *srw_req->startRecord;
3223 // Some backend, such as Voyager doesn't honor piggyback
3224 // So we use present always (0 &&).
3225 if (0 && start <= 1) // Z39.50 piggyback
3227 *z_searchRequest->smallSetUpperBound = max;
3228 *z_searchRequest->mediumSetPresentNumber = max;
3229 *z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
3231 z_searchRequest->preferredRecordSyntax =
3232 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
3234 if (srw_req->recordSchema)
3236 z_searchRequest->smallSetElementSetNames =
3237 z_searchRequest->mediumSetElementSetNames =
3238 mk_esn_from_schema(m_s2z_odr_search,
3239 srw_req->recordSchema);
3242 else // Z39.50 present
3244 m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
3245 Z_APDU_presentRequest);
3246 Z_PresentRequest *z_presentRequest =
3247 m_s2z_present_apdu->u.presentRequest;
3248 *z_presentRequest->resultSetStartPoint = start;
3249 *z_presentRequest->numberOfRecordsRequested = max;
3251 z_presentRequest->preferredRecordSyntax =
3252 odr_oiddup(m_s2z_odr_search, yaz_oid_recsyn_xml);
3253 if (srw_req->recordSchema)
3255 z_presentRequest->recordComposition =
3256 (Z_RecordComposition *)
3257 odr_malloc(m_s2z_odr_search,
3258 sizeof(Z_RecordComposition));
3259 z_presentRequest->recordComposition->which =
3260 Z_RecordComp_simple;
3261 z_presentRequest->recordComposition->u.simple =
3262 mk_esn_from_schema(m_s2z_odr_search,
3263 srw_req->recordSchema);
3269 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3270 Z_APDU_initRequest);
3272 ODR_MASK_SET(m_s2z_init_apdu->u.initRequest->options, Z_Options_scan);
3273 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3275 // prevent m_initRequest_apdu memory from being grabbed
3276 // in Yaz_Proxy::handle_incoming_Z_PDU
3277 m_initRequest_apdu = m_s2z_init_apdu;
3278 handle_incoming_Z_PDU(m_s2z_init_apdu);
3283 handle_incoming_Z_PDU(m_s2z_search_apdu);
3287 else if (srw_pdu->which == Z_SRW_explain_request)
3289 Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
3291 const char *backend_db = srw_req->database;
3292 srw_get_client(srw_req->database, &backend_db);
3294 m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
3297 if (srw_req->stylesheet)
3299 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3301 if (srw_req->recordPacking &&
3302 !strcmp(srw_req->recordPacking, "xml"))
3303 m_s2z_packing = Z_SRW_recordPacking_XML;
3305 m_s2z_packing = Z_SRW_recordPacking_string;
3309 send_srw_explain_response(diagnostic, num_diagnostic);
3315 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3316 Z_APDU_initRequest);
3318 ODR_MASK_SET(m_s2z_init_apdu->u.initRequest->options, Z_Options_scan);
3319 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3321 // prevent m_initRequest_apdu memory from being grabbed
3322 // in Yaz_Proxy::handle_incoming_Z_PDU
3323 m_initRequest_apdu = m_s2z_init_apdu;
3324 handle_incoming_Z_PDU(m_s2z_init_apdu);
3327 send_srw_explain_response(0, 0);
3330 else if (srw_pdu->which == Z_SRW_scan_request)
3332 Z_SRW_scanRequest *srw_req = srw_pdu->u.scan_request;
3334 const char *backend_db = srw_req->database;
3335 srw_get_client(srw_req->database, &backend_db);
3337 m_s2z_database = odr_strdup(m_s2z_odr_init,
3340 if (srw_req->stylesheet)
3342 odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
3345 m_s2z_scan_apdu = zget_APDU(m_s2z_odr_scan,
3346 Z_APDU_scanRequest);
3347 Z_ScanRequest *z_scanRequest =
3348 m_s2z_scan_apdu->u.scanRequest;
3350 z_scanRequest->num_databaseNames = 1;
3351 z_scanRequest->databaseNames = (char**)
3352 odr_malloc(m_s2z_odr_scan, sizeof(char *));
3353 z_scanRequest->databaseNames[0] = odr_strdup(m_s2z_odr_scan,
3356 // query transformation
3358 #ifdef Z_SRW_query_type_cql
3359 srw_req->query_type == Z_SRW_query_type_cql
3361 !srw_req->queryType || !strcmp(srw_req->queryType, "cql")
3365 z_scanRequest->termListAndStartPoint =
3366 (Z_AttributesPlusTerm *)odr_malloc(m_s2z_odr_scan, sizeof(Z_AttributesPlusTerm));
3367 z_scanRequest->termListAndStartPoint->attributes = NULL;
3368 z_scanRequest->termListAndStartPoint->term =
3369 (Z_Term *)odr_malloc(m_s2z_odr_scan, sizeof(Z_Term));
3370 z_scanRequest->termListAndStartPoint->term->which =
3371 Z_Term_characterString;
3372 z_scanRequest->termListAndStartPoint->term->u.characterString =
3373 odr_strdup(m_s2z_odr_scan,
3374 #ifdef Z_SRW_query_type_cql
3375 srw_req->scanClause.cql
3382 if (srw_req->responsePosition)
3383 z_scanRequest->preferredPositionInResponse =
3384 odr_intdup(m_s2z_odr_scan, *srw_req->responsePosition);
3385 if (srw_req->maximumTerms)
3386 *z_scanRequest->numberOfTermsRequested = *srw_req->maximumTerms;
3390 m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
3391 Z_APDU_initRequest);
3393 ODR_MASK_SET(m_s2z_init_apdu->u.initRequest->options, Z_Options_scan);
3394 m_s2z_init_apdu->u.initRequest->idAuthentication = auth;
3396 // prevent m_initRequest_apdu memory from being grabbed
3397 // in Yaz_Proxy::handle_incoming_Z_PDU
3398 m_initRequest_apdu = m_s2z_init_apdu;
3399 handle_incoming_Z_PDU(m_s2z_init_apdu);
3404 handle_incoming_Z_PDU(m_s2z_scan_apdu);
3412 send_to_srw_client_error(4, 0);
3415 send_http_response(400);
3418 void Yaz_Proxy::handle_init(Z_APDU *apdu)
3421 Z_OtherInformation **oi;
3422 get_otherInfoAPDU(apdu, &oi);
3424 if (apdu->u.initRequest->implementationId)
3425 yaz_log(YLOG_LOG, "%simplementationId: %s",
3426 m_session_str, apdu->u.initRequest->implementationId);
3427 if (apdu->u.initRequest->implementationName)
3428 yaz_log(YLOG_LOG, "%simplementationName: %s",
3429 m_session_str, apdu->u.initRequest->implementationName);
3430 if (apdu->u.initRequest->implementationVersion)
3431 yaz_log(YLOG_LOG, "%simplementationVersion: %s",
3432 m_session_str, apdu->u.initRequest->implementationVersion);
3433 if (m_initRequest_apdu == 0)
3435 if (m_initRequest_mem)
3436 nmem_destroy(m_initRequest_mem);
3438 m_initRequest_apdu = apdu;
3439 m_initRequest_mem = odr_extract_mem(odr_decode());
3441 m_initRequest_preferredMessageSize = *apdu->u.initRequest->
3442 preferredMessageSize;
3443 *apdu->u.initRequest->preferredMessageSize = 64*1024*1024;
3444 m_initRequest_maximumRecordSize = *apdu->u.initRequest->
3446 *apdu->u.initRequest->maximumRecordSize = 64*1024*1024;
3448 Z_CharSetandLanguageNegotiation *charSetandLangRecord =
3449 yaz_get_charneg_record(*oi);
3451 // Save proposal charsets and langs.
3452 if (ODR_MASK_GET(apdu->u.initRequest->options,
3453 Z_Options_negotiationModel)
3454 && charSetandLangRecord)
3457 yaz_get_proposal_charneg(m_referenceId_mem,
3458 charSetandLangRecord,
3459 &m_initRequest_oi_negotiation_charsets,
3460 &m_initRequest_oi_negotiation_num_charsets,
3461 &m_initRequest_oi_negotiation_langs,
3462 &m_initRequest_oi_negotiation_num_langs,
3463 &m_initRequest_oi_negotiation_selected);
3465 for (int i = 0; i<m_initRequest_oi_negotiation_num_charsets; i++)
3467 yaz_log(YLOG_LOG, "%scharacters set proposal: %s",
3468 m_session_str,(m_initRequest_oi_negotiation_charsets[i])?
3469 m_initRequest_oi_negotiation_charsets[i]:"none");
3471 for (int i=0; i<m_initRequest_oi_negotiation_num_langs; i++)
3473 yaz_log(YLOG_LOG, "%slanguages proposal: %s",
3474 m_session_str, (m_initRequest_oi_negotiation_langs[i])?
3475 m_initRequest_oi_negotiation_langs[i]:"none");
3477 yaz_log(YLOG_LOG, "%sselected proposal: %d (boolean)",
3478 m_session_str, m_initRequest_oi_negotiation_selected);
3480 // save init options for the response..
3481 m_initRequest_options = apdu->u.initRequest->options;
3483 apdu->u.initRequest->options =
3484 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3485 sizeof(Odr_bitmask));
3486 ODR_MASK_ZERO(apdu->u.initRequest->options);
3488 for (i = 0; i<= 24; i++)
3489 ODR_MASK_SET(apdu->u.initRequest->options, i);
3490 // check negotiation option
3491 if (!ODR_MASK_GET(m_initRequest_options,
3492 Z_Options_negotiationModel))
3494 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3495 Z_Options_negotiationModel);
3497 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3498 Z_Options_concurrentOperations);
3500 m_initRequest_version = apdu->u.initRequest->protocolVersion;
3501 apdu->u.initRequest->protocolVersion =
3502 (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
3503 sizeof(Odr_bitmask));
3504 ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
3506 for (i = 0; i<= 8; i++)
3507 ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
3509 handle_charset_lang_negotiation(apdu);
3510 if (m_client->m_init_flag)
3512 if (handle_init_response_for_invalid_session(apdu))
3514 if (m_client->m_initResponse)
3516 Z_APDU *apdu2 = m_client->m_initResponse;
3517 apdu2->u.initResponse->otherInfo = 0;
3518 if (m_client->m_cookie && *m_client->m_cookie)
3519 set_otherInformationString(apdu2, yaz_oid_userinfo_cookie,
3520 1, m_client->m_cookie);
3521 apdu2->u.initResponse->referenceId =
3522 apdu->u.initRequest->referenceId;
3523 apdu2->u.initResponse->options = m_client->m_initResponse_options;
3524 apdu2->u.initResponse->protocolVersion =
3525 m_client->m_initResponse_version;
3527 handle_charset_lang_negotiation(apdu2);
3529 if (m_timeout_mode == timeout_busy)
3530 m_timeout_mode = timeout_normal;
3531 send_to_client(apdu2);
3535 m_client->m_init_flag = 1;
3537 if (m_num_msg_threads && m_my_thread)
3539 Auth_Msg *m = new Auth_Msg;
3541 z_APDU(odr_encode(), &apdu, 0, "encode");
3542 char *apdu_buf = odr_getbuf(odr_encode(), &m->m_apdu_len, 0);
3543 m->m_apdu_buf = (char*) nmem_malloc(m->m_nmem, m->m_apdu_len);
3544 memcpy(m->m_apdu_buf, apdu_buf, m->m_apdu_len);
3545 odr_reset(odr_encode());
3548 m_my_thread->put(m);
3552 int ret = handle_authentication(apdu);
3553 result_authentication(apdu, ret);
3557 void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
3559 Z_ReferenceId **refid = get_referenceIdP(apdu);
3560 nmem_reset(m_referenceId_mem);
3561 if (refid && *refid)
3563 m_referenceId = (Z_ReferenceId *)
3564 nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
3565 m_referenceId->len = (*refid)->len;
3566 #if YAZ_VERSIONL < 0x50000
3567 m_referenceId->size = m_referenceId->len;
3568 m_referenceId->buf = (unsigned char *)
3569 nmem_strdupn(m_referenceId_mem, (const char *)
3570 (*refid)->buf, (*refid)->len);
3572 m_referenceId->buf =
3573 nmem_strdupn(m_referenceId_mem, (*refid)->buf, (*refid)->len);
3579 if (!m_client && m_flag_invalid_session)
3581 // Got request for a session that is invalid..
3582 m_apdu_invalid_session = apdu; // save package
3583 m_mem_invalid_session = odr_extract_mem(odr_decode());
3584 apdu = m_initRequest_apdu; // but throw an init to the target
3587 if (apdu->which == Z_APDU_searchRequest)
3588 m_search_stat.add_bytes(1);
3590 // Handle global authentication
3591 if (!handle_global_authentication(apdu))
3594 { // HTTP. Send unauthorized
3595 send_http_response(401);
3600 // Z39.50 just shutdown
3607 // Determine our client.
3608 Z_OtherInformation **oi;
3609 get_otherInfoAPDU(apdu, &oi);
3610 int http_code = 404;
3611 m_client = get_client(apdu, get_cookie(oi), get_proxy(oi), &http_code);
3615 { // HTTP. Send not found
3616 send_http_response(http_code);
3621 // Z39.50 just shutdown
3627 m_client->m_server = this;
3629 if (apdu->which == Z_APDU_initRequest)
3632 handle_incoming_Z_PDU_2(apdu);
3635 void Yaz_Proxy::handle_incoming_Z_PDU_2(Z_APDU *apdu)
3637 handle_max_record_retrieve(apdu);
3640 apdu = handle_syntax_validation(apdu);
3643 apdu = handle_query_transformation(apdu);
3646 apdu = handle_target_charset_conversion(apdu);
3649 apdu = handle_query_validation(apdu);
3652 apdu = result_set_optimize(apdu);
3656 m_client->timeout(m_target_idletime); // mark it active even
3657 recv_GDU_more(true);
3658 // though we didn't use it
3662 // delete other info construct completely if 0 elements
3663 Z_OtherInformation **oi;
3664 get_otherInfoAPDU(apdu, &oi);
3665 if (oi && *oi && (*oi)->num_elements == 0)
3668 if (apdu->which == Z_APDU_presentRequest &&
3669 m_client->m_resultSetStartPoint == 0)
3671 Z_PresentRequest *pr = apdu->u.presentRequest;
3672 m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
3673 m_client->m_cache.copy_presentRequest(apdu->u.presentRequest);
3675 m_client->m_resultSetStartPoint = 0;
3677 if (m_client->send_to_target(apdu) < 0)
3679 m_client->shutdown();
3682 m_client->m_waiting = 1;
3685 void Yaz_Proxy::connectNotify()
3689 void Yaz_Proxy::releaseClient()
3691 xfree(m_proxyTarget);
3693 m_flag_invalid_session = 0;
3694 // only keep if keep_alive flag is set...
3696 m_client->m_pdu_recv < m_keepalive_limit_pdu &&
3697 m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
3698 m_client->m_waiting == 0)
3700 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) keepalive %s",
3702 m_client->get_hostname());
3703 yaz_log(YLOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
3704 m_session_str, m_client->m_pdu_recv,
3705 m_client->m_bytes_sent + m_client->m_bytes_recv,
3706 m_keepalive_limit_bw, m_keepalive_limit_pdu);
3707 assert (m_client->m_waiting != 2);
3708 // Tell client (if any) that no server connection is there..
3709 m_client->m_server = 0;
3714 yaz_log(YLOG_LOG, "%sShutdown (client to proxy) close %s",
3716 m_client->get_hostname());
3717 assert (m_client->m_waiting != 2);
3723 yaz_log(YLOG_LOG, "%sshutdown (client to proxy) bad state",
3729 yaz_log(YLOG_LOG, "%sShutdown (client to proxy)",
3733 m_parent->pre_init();
3736 bool Yaz_Proxy::dec_ref()
3738 m_http_keepalive = 0;
3741 if (m_ref_count > 0)
3750 const char *Yaz_ProxyClient::get_session_str()
3754 return m_server->get_session_str();
3757 void Yaz_ProxyClient::shutdown()
3759 yaz_log(YLOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
3764 m_waiting = 1; // ensure it's released from Yaz_Proxy::releaseClient
3765 m_server->dec_ref();
3771 void Yaz_Proxy::failNotify()
3774 yaz_log(YLOG_LOG, "%sConnection closed by client", get_session_str());
3778 void Yaz_Proxy::send_response_fail_client(const char *addr)
3782 Z_SRW_diagnostic *diagnostic = 0;
3783 int num_diagnostic = 0;
3785 yaz_add_srw_diagnostic(odr_encode(),
3786 &diagnostic, &num_diagnostic,
3787 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, addr);
3788 if (m_s2z_search_apdu)
3789 send_srw_search_response(diagnostic, num_diagnostic);
3790 else if (m_s2z_scan_apdu)
3791 send_srw_scan_response(diagnostic, num_diagnostic);
3793 send_srw_explain_response(diagnostic, num_diagnostic);
3797 void Yaz_ProxyClient::failNotify()
3800 m_server->inc_request_no();
3801 yaz_log(YLOG_LOG, "%sConnection closed by target %s",
3802 get_session_str(), get_hostname());
3805 m_server->send_response_fail_client(get_hostname());
3809 void Yaz_ProxyClient::connectNotify()
3811 const char *s = get_session_str();
3812 const char *h = get_hostname();
3813 yaz_log(YLOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
3815 timeout(m_target_idletime);
3820 IPDU_Observer *Yaz_ProxyClient::sessionNotify(IPDU_Observable
3821 *the_PDU_Observable, int fd)
3823 return new Yaz_ProxyClient(the_PDU_Observable, 0);
3826 Yaz_ProxyClient::~Yaz_ProxyClient()
3831 m_next->m_prev = m_prev;
3832 m_waiting = 2; // for debugging purposes only.
3833 odr_destroy(m_init_odr);
3834 odr_destroy(m_idAuthentication_odr);
3835 delete m_last_query;
3836 xfree(m_last_resultSetId);
3840 void Yaz_ProxyClient::pre_init_client()
3842 Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
3843 Z_InitRequest *req = apdu->u.initRequest;
3846 for (i = 0; i<= 24; i++)
3847 ODR_MASK_SET(req->options, i);
3848 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3849 Z_Options_negotiationModel);
3850 ODR_MASK_CLEAR(apdu->u.initRequest->options,
3851 Z_Options_concurrentOperations);
3852 for (i = 0; i<= 10; i++)
3853 ODR_MASK_SET(req->protocolVersion, i);
3855 if (send_to_target(apdu) < 0)
3866 void Yaz_Proxy::pre_init()
3869 const char *name = 0;
3870 const char *zurl_in_use[MAX_ZURL_PLEX];
3871 int limit_bw, limit_pdu, limit_req, limit_search;
3872 int target_idletime, client_idletime;
3873 int max_sockets = m_max_sockets;
3875 int keepalive_limit_bw, keepalive_limit_pdu;
3877 const char *cql2rpn = 0;
3878 const char *authentication = 0;
3879 const char *negotiation_charset = 0;
3880 const char *negotiation_lang = 0;
3882 Yaz_ProxyConfig *cfg = check_reconfigure();
3886 if (m_log_mask & PROXY_LOG_APDU_CLIENT)
3891 for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
3892 &limit_bw, &limit_pdu, &limit_req,
3894 &target_idletime, &client_idletime,
3897 &keepalive_limit_bw,
3898 &keepalive_limit_pdu,
3902 &negotiation_charset,
3910 for (j = 0; zurl_in_use[j]; j++)
3914 int spare_waiting = 0;
3917 for (c = m_clientPool; c; c = c->m_next)
3919 if (!strcmp(zurl_in_use[j], c->get_hostname()))
3921 if (c->m_cookie == 0)
3923 if (c->m_server == 0)
3935 yaz_log(YLOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
3936 "sparew=%d preinit=%d",m_session_str,
3937 name, zurl_in_use[j], in_use, other,
3938 spare, spare_waiting, pre_init);
3939 if (spare + spare_waiting < pre_init
3940 && in_use + spare + spare_waiting + other < max_sockets)
3942 c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
3943 c->m_next = m_clientPool;
3945 c->m_next->m_prev = &c->m_next;
3947 c->m_prev = &m_clientPool;
3949 if (m_log_mask & PROXY_LOG_APDU_SERVER)
3950 c->set_APDU_yazlog(1);
3952 c->set_APDU_yazlog(0);
3954 if (c->client(zurl_in_use[j]))
3962 c->m_target_idletime = target_idletime;
3963 c->m_seqno = m_seqno++;
3970 void Yaz_Proxy::timeoutNotify()
3975 switch(m_timeout_mode)
3977 case timeout_normal:
3981 yaz_log(YLOG_LOG, "%sTimeout (client to proxy)", m_session_str);
3984 case timeout_reduce:
3985 timeout(m_client_idletime);
3986 m_timeout_mode = timeout_busy;
3987 gdu = m_timeout_gdu;
3989 recv_GDU_normal(gdu);
3992 assert(m_stylesheet_nprl);
3993 convert_xsl_delay();
3994 recv_GDU_more(true);
4004 void Yaz_Proxy::markInvalid()
4007 m_flag_invalid_session = 1;
4010 void Yaz_ProxyClient::timeoutNotify()
4013 m_server->inc_request_no();
4015 yaz_log(YLOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
4019 m_server->send_response_fail_client(get_hostname());
4021 Yaz_Proxy *proxy_root = m_root;
4025 proxy_root->pre_init();
4028 Yaz_ProxyClient::Yaz_ProxyClient(IPDU_Observable *the_PDU_Observable,
4029 Yaz_Proxy *parent) :
4030 Z_Assoc (the_PDU_Observable)
4037 m_last_resultSetId = 0;
4038 m_last_resultCount = 0;
4042 m_init_odr = odr_createmem (ODR_DECODE);
4044 m_initResponse_options = 0;
4045 m_initResponse_version = 0;
4046 m_initResponse_preferredMessageSize = 0;
4047 m_initResponse_maximumRecordSize = 0;
4048 m_resultSetStartPoint = 0;
4049 m_bytes_sent = m_bytes_recv = 0;
4053 m_target_idletime = 600;
4055 m_idAuthentication_odr = odr_createmem(ODR_ENCODE);
4056 m_idAuthentication_ber_buf = 0;
4057 m_idAuthentication_ber_size = 0;
4060 const char *Yaz_Proxy::option(const char *name, const char *value)
4062 if (!strcmp (name, "optimize")) {
4065 m_optimize = xstrdup(value);
4072 void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
4077 void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
4079 if (apdu->which == Z_GDU_Z3950)
4080 recv_Z_PDU(apdu->u.z3950, len);
4081 else if (apdu->which == Z_GDU_HTTP_Response)
4082 recv_HTTP_response(apdu->u.HTTP_Response, len);
4087 int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
4089 if (!m_flag_invalid_session)
4091 m_flag_invalid_session = 0;
4092 handle_incoming_Z_PDU(m_apdu_invalid_session);
4093 assert (m_mem_invalid_session);
4094 nmem_destroy(m_mem_invalid_session);
4095 m_mem_invalid_session = 0;
4099 void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
4101 m_bytes_recv += len;
4105 if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
4106 yaz_log(YLOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
4107 apdu_name(apdu), get_hostname(), len);
4108 if (apdu->which == Z_APDU_initResponse)
4110 if (!m_server) // if this is a pre init session , check for more
4112 NMEM nmem = odr_extract_mem (odr_decode());
4113 odr_reset (m_init_odr);
4114 nmem_transfer (m_init_odr->mem, nmem);
4115 m_initResponse = apdu;
4116 m_initResponse_options = apdu->u.initResponse->options;
4117 m_initResponse_version = apdu->u.initResponse->protocolVersion;
4118 m_initResponse_preferredMessageSize =
4119 *apdu->u.initResponse->preferredMessageSize;
4120 m_initResponse_maximumRecordSize =
4121 *apdu->u.initResponse->maximumRecordSize;
4123 Z_InitResponse *ir = apdu->u.initResponse;
4125 // apply YAZ Proxy version
4126 char *imv0 = ir->implementationVersion;
4127 char *imv1 = (char*)
4128 odr_malloc(m_init_odr, 20 + (imv0 ? strlen(imv0) : 0));
4133 strcat(imv1, "/" VERSION);
4135 ir->implementationVersion = imv1;
4137 // apply YAZ Proxy implementation name
4138 char *im0 = ir->implementationName;
4140 odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
4147 strcat(im1, "(YAZ Proxy)");
4148 ir->implementationName = im1;
4150 nmem_destroy (nmem);
4152 if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
4155 if (apdu->which == Z_APDU_searchResponse)
4157 Z_SearchResponse *sr = apdu->u.searchResponse;
4158 m_last_resultCount = *sr->resultCount;
4159 int status = *sr->searchStatus;
4160 if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
4164 if (sr->records && sr->records->which == Z_Records_DBOSD)
4166 m_cache.add(odr_decode(),
4167 sr->records->u.databaseOrSurDiagnostics, 1,
4172 if (apdu->which == Z_APDU_presentResponse)
4174 Z_PresentResponse *pr = apdu->u.presentResponse;
4178 Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
4179 Z_SearchResponse *sr = new_apdu->u.searchResponse;
4180 sr->referenceId = pr->referenceId;
4181 *sr->resultCount = m_last_resultCount;
4182 sr->records = pr->records;
4183 sr->nextResultSetPosition = pr->nextResultSetPosition;
4184 sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
4188 pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
4190 m_cache.add(odr_decode(),
4191 pr->records->u.databaseOrSurDiagnostics,
4192 m_resultSetStartPoint, -1);
4193 m_resultSetStartPoint = 0;
4197 set_otherInformationString(apdu, yaz_oid_userinfo_cookie, 1, m_cookie);
4199 Yaz_Proxy *server = m_server; // save it. send_to_client may destroy us
4202 server->send_to_client(apdu);
4203 if (apdu->which == Z_APDU_close)
4206 server->recv_GDU_more(true);
4209 void Yaz_Proxy::low_socket_close()
4214 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
4215 if (m_lo_fd[i] >= 0)
4216 ::close(m_lo_fd[i]);
4220 void Yaz_Proxy::low_socket_open()
4225 for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
4226 m_lo_fd[i] = open("/dev/null", O_RDONLY);
4230 int Yaz_Proxy::server(const char *addr)
4232 int r = Z_Assoc::server(addr);
4235 yaz_log(YLOG_LOG, "%sStarted proxy "
4239 " on %s", m_session_str, addr);
4245 void Yaz_Proxy::base64_decode(const char *base64, char *buf, int buf_len)
4247 const char *base64_chars =
4248 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
4249 int len = strlen(base64);
4253 for (int pos = 0; pos <= len; pos++)
4255 if (base64[pos] == '=' || buf_pos + 1 >= buf_len)
4258 const char *ch_ptr = strchr(base64_chars, base64[pos]);
4261 char ch = (char) (ch_ptr - base64_chars);
4265 buf[buf_pos] = ch << 2;
4268 buf[buf_pos++] += (ch & 0x30) >> 4;
4269 buf[buf_pos] = (ch & 0x0f) << 4;
4272 buf[buf_pos++] += (ch & 0x3c) >> 2;
4273 buf[buf_pos] = (ch & 0x03) << 6;
4276 buf[buf_pos++] += ch;
4283 buf[buf_pos] = '\0';
4289 * c-file-style: "Stroustrup"
4290 * indent-tabs-mode: nil
4292 * vim: shiftwidth=4 tabstop=8 expandtab