2 * Copyright (c) 1995-2004, Index Data
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.22 2004-03-16 13:12:43 adam Exp $
9 * Frontend server logic.
11 * This code receives incoming APDUs, and handles client requests by means
14 * Some of the code is getting quite involved, compared to simpler servers -
15 * primarily because it is asynchronous both in the communication with
16 * the user and the backend. We think the complexity will pay off in
17 * the form of greater flexibility when more asynchronous facilities
20 * Memory management has become somewhat involved. In the simple case, where
21 * only one PDU is pending at a time, it will simply reuse the same memory,
22 * once it has found its working size. When we enable multiple concurrent
23 * operations, perhaps even with multiple parallel calls to the backend, it
24 * will maintain a pool of buffers for encoding and decoding, trying to
25 * minimize memory allocation/deallocation during normal operation.
31 #include <sys/types.h>
34 #define S_ISREG(x) (x & _S_IFREG)
44 #include <yaz/yconfig.h>
45 #include <yaz/xmalloc.h>
46 #include <yaz/comstack.h>
49 #include <yaz/proto.h>
52 #include <yaz/logrpn.h>
53 #include <yaz/statserv.h>
54 #include <yaz/diagbib1.h>
55 #include <yaz/charneg.h>
56 #include <yaz/otherinfo.h>
57 #include <yaz/yaz-util.h>
58 #include <yaz/pquery.h>
61 #include <yaz/backend.h>
63 static void process_gdu_request(association *assoc, request *req);
64 static int process_z_request(association *assoc, request *req, char **msg);
65 void backend_response(IOCHAN i, int event);
66 static int process_gdu_response(association *assoc, request *req, Z_GDU *res);
67 static int process_z_response(association *assoc, request *req, Z_APDU *res);
68 static Z_APDU *process_initRequest(association *assoc, request *reqb);
69 static Z_External *init_diagnostics(ODR odr, int errcode, char *errstring);
70 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
72 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
73 bend_search_rr *bsrr, int *fd);
74 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
76 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
77 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
78 static void process_close(association *assoc, request *reqb);
79 void save_referenceId (request *reqb, Z_ReferenceId *refid);
80 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
82 static Z_APDU *process_segmentRequest (association *assoc, request *reqb);
84 static FILE *apduf = 0; /* for use in static mode */
85 static statserv_options_block *control_block = 0;
87 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
90 * Create and initialize a new association-handle.
91 * channel : iochannel for the current line.
92 * link : communications channel.
93 * Returns: 0 or a new association handle.
95 association *create_association(IOCHAN channel, COMSTACK link)
100 control_block = statserv_getcontrol();
101 if (!(anew = (association *)xmalloc(sizeof(*anew))))
105 anew->client_chan = channel;
106 anew->client_link = link;
107 anew->cs_get_mask = 0;
108 anew->cs_put_mask = 0;
109 anew->cs_accept_mask = 0;
110 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
111 !(anew->encode = odr_createmem(ODR_ENCODE)))
113 if (*control_block->apdufile)
118 strcpy(filename, control_block->apdufile);
119 if (!(anew->print = odr_createmem(ODR_PRINT)))
121 if (*control_block->apdufile == '@')
123 odr_setprint(anew->print, yaz_log_file());
125 else if (*control_block->apdufile != '-')
127 strcpy(filename, control_block->apdufile);
128 if (!control_block->dynamic)
132 if (!(apduf = fopen(filename, "w")))
134 yaz_log(LOG_WARN|LOG_ERRNO, "%s", filename);
137 setvbuf(apduf, 0, _IONBF, 0);
143 sprintf(filename + strlen(filename), ".%d", getpid());
144 if (!(f = fopen(filename, "w")))
146 yaz_log(LOG_WARN|LOG_ERRNO, "%s", filename);
149 setvbuf(f, 0, _IONBF, 0);
151 odr_setprint(anew->print, f);
156 anew->input_buffer = 0;
157 anew->input_buffer_len = 0;
159 anew->state = ASSOC_NEW;
160 request_initq(&anew->incoming);
161 request_initq(&anew->outgoing);
162 anew->proto = cs_getproto(link);
167 * Free association and release resources.
169 void destroy_association(association *h)
171 statserv_options_block *cb = statserv_getcontrol();
175 odr_destroy(h->decode);
176 odr_destroy(h->encode);
178 odr_destroy(h->print);
180 xfree(h->input_buffer);
182 (*cb->bend_close)(h->backend);
183 while ((req = request_deq(&h->incoming)))
184 request_release(req);
185 while ((req = request_deq(&h->outgoing)))
186 request_release(req);
187 request_delq(&h->incoming);
188 request_delq(&h->outgoing);
190 xmalloc_trav("session closed");
191 if (control_block && control_block->one_shot)
197 static void do_close_req(association *a, int reason, char *message,
201 Z_Close *cls = zget_Close(a->encode);
203 /* Purge request queue */
204 while (request_deq(&a->incoming));
205 while (request_deq(&a->outgoing));
208 yaz_log(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
209 reason, message ? message : "none");
210 apdu.which = Z_APDU_close;
212 *cls->closeReason = reason;
213 cls->diagnosticInformation = message;
214 process_z_response(a, req, &apdu);
215 iochan_settimeout(a->client_chan, 20);
219 request_release(req);
220 yaz_log(LOG_DEBUG, "v2 client. No Close PDU");
221 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
223 a->state = ASSOC_DEAD;
226 static void do_close(association *a, int reason, char *message)
228 request *req = request_get(&a->outgoing);
229 do_close_req (a, reason, message, req);
233 * This is where PDUs from the client are read and the further
234 * processing is initiated. Flow of control moves down through the
235 * various process_* functions below, until the encoded result comes back up
236 * to the output handler in here.
238 * h : the I/O channel that has an outstanding event.
239 * event : the current outstanding event.
241 void ir_session(IOCHAN h, int event)
244 association *assoc = (association *)iochan_getdata(h);
245 COMSTACK conn = assoc->client_link;
248 assert(h && conn && assoc);
249 if (event == EVENT_TIMEOUT)
251 if (assoc->state != ASSOC_UP)
253 yaz_log(LOG_LOG, "Final timeout - closing connection.");
255 destroy_association(assoc);
260 yaz_log(LOG_LOG, "Session idle too long. Sending close.");
261 do_close(assoc, Z_Close_lackOfActivity, 0);
265 if (event & assoc->cs_accept_mask)
267 yaz_log (LOG_DEBUG, "ir_session (accept)");
268 if (!cs_accept (conn))
270 yaz_log (LOG_LOG, "accept failed");
271 destroy_association(assoc);
274 iochan_clearflag (h, EVENT_OUTPUT);
275 if (conn->io_pending)
276 { /* cs_accept didn't complete */
277 assoc->cs_accept_mask =
278 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
279 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
281 iochan_setflag (h, assoc->cs_accept_mask);
284 { /* cs_accept completed. Prepare for reading (cs_get) */
285 assoc->cs_accept_mask = 0;
286 assoc->cs_get_mask = EVENT_INPUT;
287 iochan_setflag (h, assoc->cs_get_mask);
291 if ((event & assoc->cs_get_mask) || (event & EVENT_WORK)) /* input */
293 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
295 yaz_log(LOG_DEBUG, "ir_session (input)");
296 /* We aren't speaking to this fellow */
297 if (assoc->state == ASSOC_DEAD)
299 yaz_log(LOG_LOG, "Connection closed - end of session");
301 destroy_association(assoc);
305 assoc->cs_get_mask = EVENT_INPUT;
306 if ((res = cs_get(conn, &assoc->input_buffer,
307 &assoc->input_buffer_len)) <= 0)
309 yaz_log(LOG_LOG, "Connection closed by client");
311 destroy_association(assoc);
315 else if (res == 1) /* incomplete read - wait for more */
317 if (conn->io_pending & CS_WANT_WRITE)
318 assoc->cs_get_mask |= EVENT_OUTPUT;
319 iochan_setflag(h, assoc->cs_get_mask);
322 if (cs_more(conn)) /* more stuff - call us again later, please */
323 iochan_setevent(h, EVENT_INPUT);
325 /* we got a complete PDU. Let's decode it */
326 yaz_log(LOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
327 assoc->input_buffer[0] & 0xff,
328 assoc->input_buffer[1] & 0xff,
329 assoc->input_buffer[2] & 0xff);
330 req = request_get(&assoc->incoming); /* get a new request */
331 odr_reset(assoc->decode);
332 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
333 if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
335 yaz_log(LOG_LOG, "ODR error on incoming PDU: %s [element %s] "
337 odr_errmsg(odr_geterror(assoc->decode)),
338 odr_getelement(assoc->decode),
339 odr_offset(assoc->decode));
340 if (assoc->decode->error != OHTTP)
342 yaz_log(LOG_LOG, "PDU dump:");
343 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
344 request_release(req);
345 do_close(assoc, Z_Close_protocolError,"Malformed package");
349 Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
350 assoc->state = ASSOC_DEAD;
351 process_gdu_response(assoc, req, p);
355 req->request_mem = odr_extract_mem(assoc->decode);
358 if (!z_GDU(assoc->print, &req->gdu_request, 0, 0))
359 yaz_log(LOG_WARN, "ODR print error: %s",
360 odr_errmsg(odr_geterror(assoc->print)));
361 odr_reset(assoc->print);
363 request_enq(&assoc->incoming, req);
366 /* can we do something yet? */
367 req = request_head(&assoc->incoming);
368 if (req->state == REQUEST_IDLE)
370 request_deq(&assoc->incoming);
371 process_gdu_request(assoc, req);
374 if (event & assoc->cs_put_mask)
376 request *req = request_head(&assoc->outgoing);
378 assoc->cs_put_mask = 0;
379 yaz_log(LOG_DEBUG, "ir_session (output)");
380 req->state = REQUEST_PENDING;
381 switch (res = cs_put(conn, req->response, req->len_response))
384 yaz_log(LOG_LOG, "Connection closed by client");
386 destroy_association(assoc);
389 case 0: /* all sent - release the request structure */
390 yaz_log(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
392 yaz_log(LOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
395 nmem_destroy(req->request_mem);
396 request_deq(&assoc->outgoing);
397 request_release(req);
398 if (!request_head(&assoc->outgoing))
399 { /* restore mask for cs_get operation ... */
400 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
401 iochan_setflag(h, assoc->cs_get_mask);
402 if (assoc->state == ASSOC_DEAD)
403 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
407 assoc->cs_put_mask = EVENT_OUTPUT;
411 if (conn->io_pending & CS_WANT_WRITE)
412 assoc->cs_put_mask |= EVENT_OUTPUT;
413 if (conn->io_pending & CS_WANT_READ)
414 assoc->cs_put_mask |= EVENT_INPUT;
415 iochan_setflag(h, assoc->cs_put_mask);
418 if (event & EVENT_EXCEPT)
420 yaz_log(LOG_LOG, "ir_session (exception)");
422 destroy_association(assoc);
427 static int process_z_request(association *assoc, request *req, char **msg);
429 static void assoc_init_reset(association *assoc)
432 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
434 assoc->init->stream = assoc->encode;
435 assoc->init->print = assoc->print;
436 assoc->init->auth = 0;
437 assoc->init->referenceId = 0;
438 assoc->init->implementation_version = 0;
439 assoc->init->implementation_id = 0;
440 assoc->init->implementation_name = 0;
441 assoc->init->bend_sort = NULL;
442 assoc->init->bend_search = NULL;
443 assoc->init->bend_present = NULL;
444 assoc->init->bend_esrequest = NULL;
445 assoc->init->bend_delete = NULL;
446 assoc->init->bend_scan = NULL;
447 assoc->init->bend_segment = NULL;
448 assoc->init->bend_fetch = NULL;
449 assoc->init->bend_explain = NULL;
451 assoc->init->charneg_request = NULL;
452 assoc->init->charneg_response = NULL;
454 assoc->init->decode = assoc->decode;
455 assoc->init->peer_name =
456 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
459 static int srw_bend_init(association *assoc)
461 const char *encoding = "UTF-8";
463 bend_initresult *binitres;
464 statserv_options_block *cb = statserv_getcontrol();
466 assoc_init_reset(assoc);
468 assoc->maximumRecordSize = 3000000;
469 assoc->preferredMessageSize = 3000000;
471 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
472 assoc->init->charneg_request = ce->u.charNeg3;
474 if (!(binitres = (*cb->bend_init)(assoc->init)))
476 yaz_log(LOG_WARN, "Bad response from backend.");
479 assoc->backend = binitres->handle;
483 static int srw_bend_fetch(association *assoc, int pos,
484 Z_SRW_searchRetrieveRequest *srw_req,
485 Z_SRW_record *record)
488 ODR o = assoc->encode;
490 rr.setname = "default";
493 rr.request_format = VAL_TEXT_XML;
494 rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
497 rr.comp = (Z_RecordComposition *)
498 odr_malloc(assoc->decode, sizeof(*rr.comp));
499 rr.comp->which = Z_RecordComp_complex;
500 rr.comp->u.complex = (Z_CompSpec *)
501 odr_malloc(assoc->decode, sizeof(Z_CompSpec));
502 rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
503 odr_malloc(assoc->encode, sizeof(bool_t));
504 *rr.comp->u.complex->selectAlternativeSyntax = 0;
505 rr.comp->u.complex->num_dbSpecific = 0;
506 rr.comp->u.complex->dbSpecific = 0;
507 rr.comp->u.complex->num_recordSyntax = 0;
508 rr.comp->u.complex->recordSyntax = 0;
510 rr.comp->u.complex->generic = (Z_Specification *)
511 odr_malloc(assoc->decode, sizeof(Z_Specification));
512 rr.comp->u.complex->generic->which = Z_Schema_uri;
513 rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
514 rr.comp->u.complex->generic->elementSpec = 0;
516 rr.stream = assoc->encode;
517 rr.print = assoc->print;
523 rr.output_format = VAL_TEXT_XML;
524 rr.output_format_raw = 0;
527 rr.surrogate_flag = 0;
528 rr.schema = srw_req->recordSchema;
530 if (!assoc->init->bend_fetch)
533 (*assoc->init->bend_fetch)(assoc->backend, &rr);
537 record->recordData_buf = rr.record;
538 record->recordData_len = rr.len;
539 record->recordPosition = odr_intdup(o, pos);
541 record->recordSchema = odr_strdup(o, rr.schema);
543 record->recordSchema = 0;
548 static void srw_bend_search(association *assoc, request *req,
549 Z_SRW_searchRetrieveRequest *srw_req,
550 Z_SRW_searchRetrieveResponse *srw_res,
558 yaz_log(LOG_LOG, "Got SRW SearchRetrieveRequest");
559 yaz_log(LOG_DEBUG, "srw_bend_search");
562 yaz_log(LOG_DEBUG, "srw_bend_init");
563 if (!srw_bend_init(assoc))
565 srw_error = 3; /* assume Authentication error */
567 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
568 &srw_res->num_diagnostics, 1, 0);
573 rr.setname = "default";
576 rr.basenames = &srw_req->database;
579 rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
581 if (srw_req->query_type == Z_SRW_query_type_cql)
583 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
584 ext->direct_reference = odr_getoidbystr(assoc->decode,
585 "1.2.840.10003.16.2");
586 ext->indirect_reference = 0;
588 ext->which = Z_External_CQL;
589 ext->u.cql = srw_req->query.cql;
591 rr.query->which = Z_Query_type_104;
592 rr.query->u.type_104 = ext;
594 else if (srw_req->query_type == Z_SRW_query_type_pqf)
596 Z_RPNQuery *RPNquery;
597 YAZ_PQF_Parser pqf_parser;
599 pqf_parser = yaz_pqf_create ();
601 RPNquery = yaz_pqf_parse (pqf_parser, assoc->decode,
607 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
608 yaz_log(LOG_LOG, "%*s^\n", off+4, "");
609 yaz_log(LOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
614 rr.query->which = Z_Query_type_1;
615 rr.query->u.type_1 = RPNquery;
617 yaz_pqf_destroy (pqf_parser);
622 if (!srw_error && srw_req->sort_type != Z_SRW_sort_type_none)
625 if (!srw_error && !assoc->init->bend_search)
630 yaz_log(LOG_DEBUG, "srw_bend_search returned SRW error %d", srw_error);
631 srw_res->num_diagnostics = 1;
632 srw_res->diagnostics = (Z_SRW_diagnostic *)
633 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
634 yaz_mk_std_diagnostic(assoc->encode,
635 srw_res->diagnostics, srw_error, 0);
639 rr.stream = assoc->encode;
640 rr.decode = assoc->decode;
641 rr.print = assoc->print;
643 rr.association = assoc;
649 yaz_log_zquery(rr.query);
650 (assoc->init->bend_search)(assoc->backend, &rr);
651 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
654 yaz_log(LOG_DEBUG, "bend_search returned Bib-1 code %d", rr.errcode);
655 if (rr.errcode == 109) /* database unavailable */
660 srw_res->num_diagnostics = 1;
661 srw_res->diagnostics = (Z_SRW_diagnostic *)
662 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
663 yaz_mk_std_diagnostic(assoc->encode, srw_res->diagnostics,
664 yaz_diag_bib1_to_srw (rr.errcode),
666 yaz_log(LOG_DEBUG, "srw_bend_search returned SRW error %s",
667 srw_res->diagnostics[0].uri);
671 int number = srw_req->maximumRecords ? *srw_req->maximumRecords : 0;
672 int start = srw_req->startRecord ? *srw_req->startRecord : 1;
674 yaz_log(LOG_LOG, "Request to pack %d+%d out of %d",
675 start, number, rr.hits);
677 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
684 yaz_log(LOG_LOG, "Request out or range");
689 int packing = Z_SRW_recordPacking_string;
690 if (start + number > rr.hits)
691 number = rr.hits - start + 1;
692 if (srw_req->recordPacking &&
693 !strcmp(srw_req->recordPacking, "xml"))
694 packing = Z_SRW_recordPacking_XML;
695 srw_res->records = (Z_SRW_record *)
696 odr_malloc(assoc->encode,
697 number * sizeof(*srw_res->records));
698 for (i = 0; i<number; i++)
702 srw_res->records[j].recordPacking = packing;
703 srw_res->records[j].recordData_buf = 0;
704 yaz_log(LOG_DEBUG, "srw_bend_fetch %d", i+start);
705 errcode = srw_bend_fetch(assoc, i+start, srw_req,
706 srw_res->records + j);
709 srw_res->num_diagnostics = 1;
710 srw_res->diagnostics = (Z_SRW_diagnostic *)
711 odr_malloc(assoc->encode,
712 sizeof(*srw_res->diagnostics));
714 yaz_mk_std_diagnostic(assoc->encode,
715 srw_res->diagnostics,
716 yaz_diag_bib1_to_srw (errcode),
720 if (srw_res->records[j].recordData_buf)
723 srw_res->num_records = j;
725 srw_res->records = 0;
731 static void srw_bend_explain(association *assoc, request *req,
732 Z_SRW_explainRequest *srw_req,
733 Z_SRW_explainResponse *srw_res,
736 yaz_log(LOG_LOG, "Got SRW ExplainRequest");
740 yaz_log(LOG_DEBUG, "srw_bend_init");
741 if (!srw_bend_init(assoc))
746 if (assoc->init && assoc->init->bend_explain)
750 rr.stream = assoc->encode;
751 rr.decode = assoc->decode;
752 rr.print = assoc->print;
754 rr.database = srw_req->database;
755 rr.schema = "http://explain.z3950.org/dtd/2.0/";
756 (*assoc->init->bend_explain)(assoc->backend, &rr);
759 int packing = Z_SRW_recordPacking_string;
760 if (srw_req->recordPacking &&
761 !strcmp(srw_req->recordPacking, "xml"))
762 packing = Z_SRW_recordPacking_XML;
763 srw_res->record.recordSchema = 0;
764 srw_res->record.recordPacking = packing;
765 srw_res->record.recordData_buf = rr.explain_buf;
766 srw_res->record.recordData_len = strlen(rr.explain_buf);
767 srw_res->record.recordPosition = 0;
773 static void process_http_request(association *assoc, request *req)
775 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
776 ODR o = assoc->encode;
777 int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */
779 Z_SOAP *soap_package = 0;
782 Z_HTTP_Response *hres = 0;
784 char *stylesheet = 0;
785 Z_SRW_diagnostic *diagnostic = 0;
786 int num_diagnostic = 0;
788 if (!strcmp(hreq->path, "/test"))
790 p = z_get_HTTP_Response(o, 200);
791 hres = p->u.HTTP_Response;
792 hres->content_buf = "1234567890\n";
793 hres->content_len = strlen(hres->content_buf);
798 r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset);
799 yaz_log(LOG_DEBUG, "yaz_srw_decode returned %d", r);
801 if (r == 2) /* not taken */
803 r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset,
804 &diagnostic, &num_diagnostic);
805 yaz_log(LOG_DEBUG, "yaz_sru_decode returned %d", r);
807 if (r == 0) /* decode SRW/SRU OK .. */
810 if (sr->which == Z_SRW_searchRetrieve_request)
813 yaz_srw_get(assoc->encode, Z_SRW_searchRetrieve_response);
815 stylesheet = sr->u.request->stylesheet;
818 res->u.response->diagnostics = diagnostic;
819 res->u.response->num_diagnostics = num_diagnostic;
823 srw_bend_search(assoc, req, sr->u.request, res->u.response,
826 if (http_code == 200)
827 soap_package->u.generic->p = res;
829 else if (sr->which == Z_SRW_explain_request)
831 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_explain_response);
832 stylesheet = sr->u.explain_request->stylesheet;
835 res->u.explain_response->diagnostics = diagnostic;
836 res->u.explain_response->num_diagnostics = num_diagnostic;
838 srw_bend_explain(assoc, req, sr->u.explain_request,
839 res->u.explain_response, &http_code);
840 if (http_code == 200)
841 soap_package->u.generic->p = res;
843 else if (sr->which == Z_SRW_scan_request)
845 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_scan_response);
846 stylesheet = sr->u.scan_request->stylesheet;
849 res->u.scan_response->diagnostics = diagnostic;
850 res->u.scan_response->num_diagnostics = num_diagnostic;
852 yaz_add_srw_diagnostic(o,
853 &res->u.scan_response->diagnostics,
854 &res->u.scan_response->num_diagnostics,
856 if (http_code == 200)
857 soap_package->u.generic->p = res;
861 yaz_log(LOG_LOG, "generate soap error");
863 z_soap_error(assoc->encode, soap_package,
864 "SOAP-ENV:Client", "Bad method", 0);
866 if (http_code == 200 || http_code == 500)
868 static Z_SOAP_Handler soap_handlers[3] = {
870 {"http://www.loc.gov/zing/srw/", 0,
871 (Z_SOAP_fun) yaz_srw_codec},
872 {"http://www.loc.gov/zing/srw/v1.0/", 0,
873 (Z_SOAP_fun) yaz_srw_codec},
879 p = z_get_HTTP_Response(o, 200);
880 hres = p->u.HTTP_Response;
881 ret = z_soap_codec_enc_xsl(assoc->encode, &soap_package,
882 &hres->content_buf, &hres->content_len,
883 soap_handlers, charset, stylesheet);
884 hres->code = http_code;
886 strcpy(ctype, "text/xml");
889 strcat(ctype, "; charset=");
890 strcat(ctype, charset);
892 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
895 p = z_get_HTTP_Response(o, http_code);
899 p = z_get_HTTP_Response(o, 500);
900 hres = p->u.HTTP_Response;
901 if (!strcmp(hreq->version, "1.0"))
903 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
904 if (v && !strcmp(v, "Keep-Alive"))
908 hres->version = "1.0";
912 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
913 if (v && !strcmp(v, "close"))
917 hres->version = "1.1";
921 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
922 assoc->state = ASSOC_DEAD;
923 assoc->cs_get_mask = 0;
928 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
930 if (alive && isdigit(*alive))
934 if (t < 0 || t > 3600)
936 iochan_settimeout(assoc->client_chan,t);
937 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
939 process_gdu_response(assoc, req, p);
942 static void process_gdu_request(association *assoc, request *req)
944 if (req->gdu_request->which == Z_GDU_Z3950)
947 req->apdu_request = req->gdu_request->u.z3950;
948 if (process_z_request(assoc, req, &msg) < 0)
949 do_close_req(assoc, Z_Close_systemProblem, msg, req);
951 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
952 process_http_request(assoc, req);
955 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
960 * Initiate request processing.
962 static int process_z_request(association *assoc, request *req, char **msg)
968 *msg = "Unknown Error";
969 assert(req && req->state == REQUEST_IDLE);
970 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
972 *msg = "Missing InitRequest";
975 switch (req->apdu_request->which)
977 case Z_APDU_initRequest:
978 iochan_settimeout(assoc->client_chan,
979 statserv_getcontrol()->idle_timeout * 60);
980 res = process_initRequest(assoc, req); break;
981 case Z_APDU_searchRequest:
982 res = process_searchRequest(assoc, req, &fd); break;
983 case Z_APDU_presentRequest:
984 res = process_presentRequest(assoc, req, &fd); break;
985 case Z_APDU_scanRequest:
986 if (assoc->init->bend_scan)
987 res = process_scanRequest(assoc, req, &fd);
990 *msg = "Cannot handle Scan APDU";
994 case Z_APDU_extendedServicesRequest:
995 if (assoc->init->bend_esrequest)
996 res = process_ESRequest(assoc, req, &fd);
999 *msg = "Cannot handle Extended Services APDU";
1003 case Z_APDU_sortRequest:
1004 if (assoc->init->bend_sort)
1005 res = process_sortRequest(assoc, req, &fd);
1008 *msg = "Cannot handle Sort APDU";
1013 process_close(assoc, req);
1015 case Z_APDU_deleteResultSetRequest:
1016 if (assoc->init->bend_delete)
1017 res = process_deleteRequest(assoc, req, &fd);
1020 *msg = "Cannot handle Delete APDU";
1024 case Z_APDU_segmentRequest:
1025 if (assoc->init->bend_segment)
1027 res = process_segmentRequest (assoc, req);
1031 *msg = "Cannot handle Segment APDU";
1036 *msg = "Bad APDU received";
1041 yaz_log(LOG_DEBUG, " result immediately available");
1042 retval = process_z_response(assoc, req, res);
1046 yaz_log(LOG_DEBUG, " result unavailble");
1049 else /* no result yet - one will be provided later */
1053 /* Set up an I/O handler for the fd supplied by the backend */
1055 yaz_log(LOG_DEBUG, " establishing handler for result");
1056 req->state = REQUEST_PENDING;
1057 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
1059 iochan_setdata(chan, assoc);
1066 * Handle message from the backend.
1068 void backend_response(IOCHAN i, int event)
1070 association *assoc = (association *)iochan_getdata(i);
1071 request *req = request_head(&assoc->incoming);
1075 yaz_log(LOG_DEBUG, "backend_response");
1076 assert(assoc && req && req->state != REQUEST_IDLE);
1077 /* determine what it is we're waiting for */
1078 switch (req->apdu_request->which)
1080 case Z_APDU_searchRequest:
1081 res = response_searchRequest(assoc, req, 0, &fd); break;
1083 case Z_APDU_presentRequest:
1084 res = response_presentRequest(assoc, req, 0, &fd); break;
1085 case Z_APDU_scanRequest:
1086 res = response_scanRequest(assoc, req, 0, &fd); break;
1089 yaz_log(LOG_WARN, "Serious programmer's lapse or bug");
1092 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
1094 yaz_log(LOG_LOG, "Fatal error when talking to backend");
1095 do_close(assoc, Z_Close_systemProblem, 0);
1099 else if (!res) /* no result yet - try again later */
1101 yaz_log(LOG_DEBUG, " no result yet");
1102 iochan_setfd(i, fd); /* in case fd has changed */
1107 * Encode response, and transfer the request structure to the outgoing queue.
1109 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
1111 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
1115 if (!z_GDU(assoc->print, &res, 0, 0))
1116 yaz_log(LOG_WARN, "ODR print error: %s",
1117 odr_errmsg(odr_geterror(assoc->print)));
1118 odr_reset(assoc->print);
1120 if (!z_GDU(assoc->encode, &res, 0, 0))
1122 yaz_log(LOG_WARN, "ODR error when encoding PDU: %s [element %s]",
1123 odr_errmsg(odr_geterror(assoc->decode)),
1124 odr_getelement(assoc->decode));
1125 request_release(req);
1128 req->response = odr_getbuf(assoc->encode, &req->len_response,
1129 &req->size_response);
1130 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
1131 odr_reset(assoc->encode);
1132 req->state = REQUEST_IDLE;
1133 request_enq(&assoc->outgoing, req);
1134 /* turn the work over to the ir_session handler */
1135 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
1136 assoc->cs_put_mask = EVENT_OUTPUT;
1137 /* Is there more work to be done? give that to the input handler too */
1139 if (request_head(&assoc->incoming))
1141 yaz_log (LOG_DEBUG, "more work to be done");
1142 iochan_setevent(assoc->client_chan, EVENT_WORK);
1149 * Encode response, and transfer the request structure to the outgoing queue.
1151 static int process_z_response(association *assoc, request *req, Z_APDU *res)
1153 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
1154 gres->which = Z_GDU_Z3950;
1155 gres->u.z3950 = res;
1157 return process_gdu_response(assoc, req, gres);
1162 * Handle init request.
1163 * At the moment, we don't check the options
1164 * anywhere else in the code - we just try not to do anything that would
1165 * break a naive client. We'll toss 'em into the association block when
1166 * we need them there.
1168 static Z_APDU *process_initRequest(association *assoc, request *reqb)
1170 statserv_options_block *cb = statserv_getcontrol();
1171 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
1172 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
1173 Z_InitResponse *resp = apdu->u.initResponse;
1174 bend_initresult *binitres;
1178 yaz_log(LOG_LOG, "Got initRequest");
1179 if (req->implementationId)
1180 yaz_log(LOG_LOG, "Id: %s", req->implementationId);
1181 if (req->implementationName)
1182 yaz_log(LOG_LOG, "Name: %s", req->implementationName);
1183 if (req->implementationVersion)
1184 yaz_log(LOG_LOG, "Version: %s", req->implementationVersion);
1186 assoc_init_reset(assoc);
1188 assoc->init->auth = req->idAuthentication;
1189 assoc->init->referenceId = req->referenceId;
1191 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
1193 Z_CharSetandLanguageNegotiation *negotiation =
1194 yaz_get_charneg_record (req->otherInfo);
1196 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1197 assoc->init->charneg_request = negotiation;
1200 if (!(binitres = (*cb->bend_init)(assoc->init)))
1202 yaz_log(LOG_WARN, "Bad response from backend.");
1206 assoc->backend = binitres->handle;
1207 if ((assoc->init->bend_sort))
1208 yaz_log (LOG_DEBUG, "Sort handler installed");
1209 if ((assoc->init->bend_search))
1210 yaz_log (LOG_DEBUG, "Search handler installed");
1211 if ((assoc->init->bend_present))
1212 yaz_log (LOG_DEBUG, "Present handler installed");
1213 if ((assoc->init->bend_esrequest))
1214 yaz_log (LOG_DEBUG, "ESRequest handler installed");
1215 if ((assoc->init->bend_delete))
1216 yaz_log (LOG_DEBUG, "Delete handler installed");
1217 if ((assoc->init->bend_scan))
1218 yaz_log (LOG_DEBUG, "Scan handler installed");
1219 if ((assoc->init->bend_segment))
1220 yaz_log (LOG_DEBUG, "Segment handler installed");
1222 resp->referenceId = req->referenceId;
1224 /* let's tell the client what we can do */
1225 if (ODR_MASK_GET(req->options, Z_Options_search))
1227 ODR_MASK_SET(resp->options, Z_Options_search);
1228 strcat(options, "srch");
1230 if (ODR_MASK_GET(req->options, Z_Options_present))
1232 ODR_MASK_SET(resp->options, Z_Options_present);
1233 strcat(options, " prst");
1235 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
1236 assoc->init->bend_delete)
1238 ODR_MASK_SET(resp->options, Z_Options_delSet);
1239 strcat(options, " del");
1241 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
1242 assoc->init->bend_esrequest)
1244 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
1245 strcat (options, " extendedServices");
1247 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
1249 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
1250 strcat(options, " namedresults");
1252 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
1254 ODR_MASK_SET(resp->options, Z_Options_scan);
1255 strcat(options, " scan");
1257 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
1259 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
1260 strcat(options, " concurrop");
1262 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
1264 ODR_MASK_SET(resp->options, Z_Options_sort);
1265 strcat(options, " sort");
1268 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)
1269 && assoc->init->charneg_response)
1271 Z_OtherInformation **p;
1272 Z_OtherInformationUnit *p0;
1274 yaz_oi_APDU(apdu, &p);
1276 if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
1277 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
1279 p0->which = Z_OtherInfo_externallyDefinedInfo;
1280 p0->information.externallyDefinedInfo =
1281 assoc->init->charneg_response;
1283 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
1284 strcat(options, " negotiation");
1287 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
1289 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
1290 assoc->version = 1; /* 1 & 2 are equivalent */
1292 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
1294 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
1297 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
1299 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
1303 yaz_log(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
1304 assoc->maximumRecordSize = *req->maximumRecordSize;
1305 if (assoc->maximumRecordSize > control_block->maxrecordsize)
1306 assoc->maximumRecordSize = control_block->maxrecordsize;
1307 assoc->preferredMessageSize = *req->preferredMessageSize;
1308 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
1309 assoc->preferredMessageSize = assoc->maximumRecordSize;
1311 resp->preferredMessageSize = &assoc->preferredMessageSize;
1312 resp->maximumRecordSize = &assoc->maximumRecordSize;
1314 resp->implementationId = odr_prepend(assoc->encode,
1315 assoc->init->implementation_id,
1316 resp->implementationId);
1318 resp->implementationName = odr_prepend(assoc->encode,
1319 assoc->init->implementation_name,
1320 odr_prepend(assoc->encode, "GFS", resp->implementationName));
1322 version = odr_strdup(assoc->encode, "$Revision: 1.22 $");
1323 if (strlen(version) > 10) /* check for unexpanded CVS strings */
1324 version[strlen(version)-2] = '\0';
1325 resp->implementationVersion = odr_prepend(assoc->encode,
1326 assoc->init->implementation_version,
1327 odr_prepend(assoc->encode, &version[11],
1328 resp->implementationVersion));
1330 if (binitres->errcode)
1332 yaz_log(LOG_LOG, "Connection rejected by backend.");
1334 assoc->state = ASSOC_DEAD;
1335 resp->userInformationField = init_diagnostics(assoc->encode,
1337 binitres->errstring);
1340 assoc->state = ASSOC_UP;
1345 * Diagnostic in default format, to be returned as either a surrogate
1346 * or non-surrogate diagnostic in the context of an open session, or
1347 * as User-information when an Init is refused.
1349 static Z_DefaultDiagFormat *justdiag(ODR odr, int error, char *addinfo)
1351 int *err = odr_intdup(odr, error);
1352 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
1353 odr_malloc (odr, sizeof(*dr));
1355 yaz_log(LOG_LOG, "[%d] %s%s%s", error, diagbib1_str(error),
1356 addinfo ? " -- " : "", addinfo ? addinfo : "");
1358 dr->diagnosticSetId =
1359 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
1360 dr->condition = err;
1361 dr->which = Z_DefaultDiagFormat_v2Addinfo;
1362 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
1367 * Set the specified `errcode' and `errstring' into a UserInfo-1
1368 * external to be returned to the client in accordance with Z35.90
1369 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
1370 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
1372 static Z_External *init_diagnostics(ODR odr, int error, char *addinfo)
1376 Z_OtherInformation *u;
1377 Z_OtherInformationUnit *l;
1378 Z_DiagnosticFormat *d;
1379 Z_DiagnosticFormat_s *e;
1381 x = (Z_External*) odr_malloc(odr, sizeof *x);
1383 x->indirect_reference = 0;
1384 oid.proto = PROTO_Z3950;
1385 oid.oclass = CLASS_USERINFO;
1386 oid.value = VAL_USERINFO1;
1387 x->direct_reference = odr_oiddup(odr, oid_getoidbyent(&oid));
1388 x->which = Z_External_userInfo1;
1390 u = odr_malloc(odr, sizeof *u);
1392 u->num_elements = 1;
1393 u->list = (Z_OtherInformationUnit**) odr_malloc(odr, sizeof *u->list);
1394 u->list[0] = (Z_OtherInformationUnit*) odr_malloc(odr, sizeof *u->list[0]);
1397 l->which = Z_OtherInfo_externallyDefinedInfo;
1399 x2 = (Z_External*) odr_malloc(odr, sizeof *x);
1400 l->information.externallyDefinedInfo = x2;
1402 x2->indirect_reference = 0;
1403 oid.oclass = CLASS_DIAGSET;
1404 oid.value = VAL_DIAG1;
1405 x2->direct_reference = odr_oiddup(odr, oid_getoidbyent(&oid));
1406 x2->which = Z_External_diag1;
1408 d = (Z_DiagnosticFormat*) odr_malloc(odr, sizeof *d);
1411 d->elements = (Z_DiagnosticFormat_s**) odr_malloc (odr, sizeof *d->elements);
1412 d->elements[0] = (Z_DiagnosticFormat_s*) odr_malloc (odr, sizeof *d->elements[0]);
1415 e->which = Z_DiagnosticFormat_s_defaultDiagRec;
1416 e->u.defaultDiagRec = justdiag(odr, error, addinfo);
1421 * nonsurrogate diagnostic record.
1423 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
1425 Z_Records *rec = (Z_Records *)
1426 odr_malloc (assoc->encode, sizeof(*rec));
1427 rec->which = Z_Records_NSD;
1428 rec->u.nonSurrogateDiagnostic = justdiag(assoc->encode, error, addinfo);
1433 * surrogate diagnostic.
1435 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
1436 int error, char *addinfo)
1438 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
1439 odr_malloc (assoc->encode, sizeof(*rec));
1440 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1442 yaz_log(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
1443 rec->databaseName = dbname;
1444 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
1445 rec->u.surrogateDiagnostic = drec;
1446 drec->which = Z_DiagRec_defaultFormat;
1447 drec->u.defaultFormat = justdiag(assoc->encode, error, addinfo);
1453 * multiple nonsurrogate diagnostics.
1455 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
1457 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
1458 int *err = odr_intdup(assoc->encode, error);
1459 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
1460 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1461 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)
1462 odr_malloc (assoc->encode, sizeof(*rec));
1464 yaz_log(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1466 recs->num_diagRecs = 1;
1467 recs->diagRecs = recp;
1469 drec->which = Z_DiagRec_defaultFormat;
1470 drec->u.defaultFormat = rec;
1472 rec->diagnosticSetId =
1473 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
1474 rec->condition = err;
1476 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1477 rec->u.v2Addinfo = odr_strdup (assoc->encode, addinfo ? addinfo : "");
1481 static Z_Records *pack_records(association *a, char *setname, int start,
1482 int *num, Z_RecordComposition *comp,
1483 int *next, int *pres, oid_value format,
1484 Z_ReferenceId *referenceId,
1487 int recno, total_length = 0, toget = *num, dumped_records = 0;
1488 Z_Records *records =
1489 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1490 Z_NamePlusRecordList *reclist =
1491 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1492 Z_NamePlusRecord **list =
1493 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1495 records->which = Z_Records_DBOSD;
1496 records->u.databaseOrSurDiagnostics = reclist;
1497 reclist->num_records = 0;
1498 reclist->records = list;
1499 *pres = Z_PRES_SUCCESS;
1503 yaz_log(LOG_LOG, "Request to pack %d+%d+%s", start, toget, setname);
1504 yaz_log(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1505 a->maximumRecordSize);
1506 for (recno = start; reclist->num_records < toget; recno++)
1509 Z_NamePlusRecord *thisrec;
1510 int this_length = 0;
1512 * we get the number of bytes allocated on the stream before any
1513 * allocation done by the backend - this should give us a reasonable
1514 * idea of the total size of the data so far.
1516 total_length = odr_total(a->encode) - dumped_records;
1522 freq.last_in_set = 0;
1523 freq.setname = setname;
1524 freq.surrogate_flag = 0;
1525 freq.number = recno;
1527 freq.request_format = format;
1528 freq.request_format_raw = oid;
1529 freq.output_format = format;
1530 freq.output_format_raw = 0;
1531 freq.stream = a->encode;
1532 freq.print = a->print;
1533 freq.referenceId = referenceId;
1535 (*a->init->bend_fetch)(a->backend, &freq);
1536 /* backend should be able to signal whether error is system-wide
1537 or only pertaining to current record */
1540 if (!freq.surrogate_flag)
1543 *pres = Z_PRES_FAILURE;
1544 /* for 'present request out of range',
1545 set addinfo to record position if not set */
1546 if (freq.errcode == 13 && freq.errstring == 0)
1548 sprintf (s, "%d", recno);
1551 return diagrec(a, freq.errcode, freq.errstring);
1553 reclist->records[reclist->num_records] =
1554 surrogatediagrec(a, freq.basename, freq.errcode,
1556 reclist->num_records++;
1557 *next = freq.last_in_set ? 0 : recno + 1;
1561 this_length = freq.len;
1563 this_length = odr_total(a->encode) - total_length - dumped_records;
1564 yaz_log(LOG_DEBUG, " fetched record, len=%d, total=%d dumped=%d",
1565 this_length, total_length, dumped_records);
1566 if (a->preferredMessageSize > 0 &&
1567 this_length + total_length > a->preferredMessageSize)
1569 /* record is small enough, really */
1570 if (this_length <= a->preferredMessageSize && recno > start)
1572 yaz_log(LOG_DEBUG, " Dropped last normal-sized record");
1573 *pres = Z_PRES_PARTIAL_2;
1576 /* record can only be fetched by itself */
1577 if (this_length < a->maximumRecordSize)
1579 yaz_log(LOG_DEBUG, " Record > prefmsgsz");
1582 yaz_log(LOG_DEBUG, " Dropped it");
1583 reclist->records[reclist->num_records] =
1584 surrogatediagrec(a, freq.basename, 16, 0);
1585 reclist->num_records++;
1586 *next = freq.last_in_set ? 0 : recno + 1;
1587 dumped_records += this_length;
1591 else /* too big entirely */
1593 yaz_log(LOG_LOG, "Record > maxrcdsz this=%d max=%d", this_length, a->maximumRecordSize);
1594 reclist->records[reclist->num_records] =
1595 surrogatediagrec(a, freq.basename, 17, 0);
1596 reclist->num_records++;
1597 *next = freq.last_in_set ? 0 : recno + 1;
1598 dumped_records += this_length;
1603 if (!(thisrec = (Z_NamePlusRecord *)
1604 odr_malloc(a->encode, sizeof(*thisrec))))
1606 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1607 strlen(freq.basename) + 1)))
1609 strcpy(thisrec->databaseName, freq.basename);
1610 thisrec->which = Z_NamePlusRecord_databaseRecord;
1612 if (freq.output_format_raw)
1614 struct oident *ident = oid_getentbyoid(freq.output_format_raw);
1615 freq.output_format = ident->value;
1617 thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
1618 freq.record, freq.len);
1619 if (!thisrec->u.databaseRecord)
1621 reclist->records[reclist->num_records] = thisrec;
1622 reclist->num_records++;
1623 *next = freq.last_in_set ? 0 : recno + 1;
1625 *num = reclist->num_records;
1629 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1632 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1633 bend_search_rr *bsrr =
1634 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1636 yaz_log(LOG_LOG, "Got SearchRequest.");
1638 bsrr->request = reqb;
1639 bsrr->association = assoc;
1640 bsrr->referenceId = req->referenceId;
1641 save_referenceId (reqb, bsrr->referenceId);
1643 yaz_log (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1644 if (req->databaseNames)
1647 for (i = 0; i < req->num_databaseNames; i++)
1648 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1650 yaz_log_zquery(req->query);
1652 if (assoc->init->bend_search)
1654 bsrr->setname = req->resultSetName;
1655 bsrr->replace_set = *req->replaceIndicator;
1656 bsrr->num_bases = req->num_databaseNames;
1657 bsrr->basenames = req->databaseNames;
1658 bsrr->query = req->query;
1659 bsrr->stream = assoc->encode;
1660 nmem_transfer(bsrr->stream->mem, reqb->request_mem);
1661 bsrr->decode = assoc->decode;
1662 bsrr->print = assoc->print;
1665 bsrr->errstring = NULL;
1666 bsrr->search_info = NULL;
1667 (assoc->init->bend_search)(assoc->backend, bsrr);
1671 return response_searchRequest(assoc, reqb, bsrr, fd);
1674 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1677 * Prepare a searchresponse based on the backend results. We probably want
1678 * to look at making the fetching of records nonblocking as well, but
1679 * so far, we'll keep things simple.
1680 * If bsrt is null, that means we're called in response to a communications
1681 * event, and we'll have to get the response for ourselves.
1683 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1684 bend_search_rr *bsrt, int *fd)
1686 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1687 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1688 Z_SearchResponse *resp = (Z_SearchResponse *)
1689 odr_malloc (assoc->encode, sizeof(*resp));
1690 int *nulint = odr_intdup (assoc->encode, 0);
1691 bool_t *sr = odr_intdup(assoc->encode, 1);
1692 int *next = odr_intdup(assoc->encode, 0);
1693 int *none = odr_intdup(assoc->encode, Z_RES_NONE);
1695 apdu->which = Z_APDU_searchResponse;
1696 apdu->u.searchResponse = resp;
1697 resp->referenceId = req->referenceId;
1698 resp->additionalSearchInfo = 0;
1699 resp->otherInfo = 0;
1701 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1703 yaz_log(LOG_FATAL, "Bad result from backend");
1706 else if (bsrt->errcode)
1708 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1709 resp->resultCount = nulint;
1710 resp->numberOfRecordsReturned = nulint;
1711 resp->nextResultSetPosition = nulint;
1712 resp->searchStatus = nulint;
1713 resp->resultSetStatus = none;
1714 resp->presentStatus = 0;
1718 int *toget = odr_intdup(assoc->encode, 0);
1719 int *presst = odr_intdup(assoc->encode, 0);
1720 Z_RecordComposition comp, *compp = 0;
1722 yaz_log (LOG_LOG, "resultCount: %d", bsrt->hits);
1725 resp->resultCount = &bsrt->hits;
1727 comp.which = Z_RecordComp_simple;
1728 /* how many records does the user agent want, then? */
1729 if (bsrt->hits <= *req->smallSetUpperBound)
1731 *toget = bsrt->hits;
1732 if ((comp.u.simple = req->smallSetElementSetNames))
1735 else if (bsrt->hits < *req->largeSetLowerBound)
1737 *toget = *req->mediumSetPresentNumber;
1738 if (*toget > bsrt->hits)
1739 *toget = bsrt->hits;
1740 if ((comp.u.simple = req->mediumSetElementSetNames))
1746 if (*toget && !resp->records)
1751 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
1754 form = prefformat->value;
1755 resp->records = pack_records(assoc, req->resultSetName, 1,
1756 toget, compp, next, presst, form, req->referenceId,
1757 req->preferredRecordSyntax);
1760 resp->numberOfRecordsReturned = toget;
1761 resp->nextResultSetPosition = next;
1762 resp->searchStatus = sr;
1763 resp->resultSetStatus = 0;
1764 resp->presentStatus = presst;
1768 if (*resp->resultCount)
1770 resp->numberOfRecordsReturned = nulint;
1771 resp->nextResultSetPosition = next;
1772 resp->searchStatus = sr;
1773 resp->resultSetStatus = 0;
1774 resp->presentStatus = 0;
1777 resp->additionalSearchInfo = bsrt->search_info;
1782 * Maybe we got a little over-friendly when we designed bend_fetch to
1783 * get only one record at a time. Some backends can optimise multiple-record
1784 * fetches, and at any rate, there is some overhead involved in
1785 * all that selecting and hopping around. Problem is, of course, that the
1786 * frontend can't know ahead of time how many records it'll need to
1787 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1788 * is downright lousy as a bulk data transfer protocol.
1790 * To start with, we'll do the fetching of records from the backend
1791 * in one operation: To save some trips in and out of the event-handler,
1792 * and to simplify the interface to pack_records. At any rate, asynch
1793 * operation is more fun in operations that have an unpredictable execution
1794 * speed - which is normally more true for search than for present.
1796 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1799 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
1803 Z_PresentResponse *resp;
1807 yaz_log(LOG_LOG, "Got PresentRequest.");
1809 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
1812 form = prefformat->value;
1813 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1815 resp->presentStatus = odr_intdup(assoc->encode, 0);
1816 if (assoc->init->bend_present)
1818 bend_present_rr *bprr = (bend_present_rr *)
1819 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1820 bprr->setname = req->resultSetId;
1821 bprr->start = *req->resultSetStartPoint;
1822 bprr->number = *req->numberOfRecordsRequested;
1823 bprr->format = form;
1824 bprr->comp = req->recordComposition;
1825 bprr->referenceId = req->referenceId;
1826 bprr->stream = assoc->encode;
1827 bprr->print = assoc->print;
1828 bprr->request = reqb;
1829 bprr->association = assoc;
1831 bprr->errstring = NULL;
1832 (*assoc->init->bend_present)(assoc->backend, bprr);
1838 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
1839 *resp->presentStatus = Z_PRES_FAILURE;
1842 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1843 next = odr_intdup(assoc->encode, 0);
1844 num = odr_intdup(assoc->encode, 0);
1846 apdu->which = Z_APDU_presentResponse;
1847 apdu->u.presentResponse = resp;
1848 resp->referenceId = req->referenceId;
1849 resp->otherInfo = 0;
1853 *num = *req->numberOfRecordsRequested;
1855 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1856 num, req->recordComposition, next, resp->presentStatus,
1857 form, req->referenceId, req->preferredRecordSyntax);
1861 resp->numberOfRecordsReturned = num;
1862 resp->nextResultSetPosition = next;
1868 * Scan was implemented rather in a hurry, and with support for only the basic
1869 * elements of the service in the backend API. Suggestions are welcome.
1871 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1873 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
1874 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1875 Z_ScanResponse *res = (Z_ScanResponse *)
1876 odr_malloc (assoc->encode, sizeof(*res));
1877 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
1878 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
1879 Z_ListEntries *ents = (Z_ListEntries *)
1880 odr_malloc (assoc->encode, sizeof(*ents));
1881 Z_DiagRecs *diagrecs_p = NULL;
1883 bend_scan_rr *bsrr = (bend_scan_rr *)
1884 odr_malloc (assoc->encode, sizeof(*bsrr));
1885 struct scan_entry *save_entries;
1887 yaz_log(LOG_LOG, "Got ScanRequest");
1889 apdu->which = Z_APDU_scanResponse;
1890 apdu->u.scanResponse = res;
1891 res->referenceId = req->referenceId;
1893 /* if step is absent, set it to 0 */
1894 res->stepSize = odr_intdup(assoc->encode, 0);
1896 *res->stepSize = *req->stepSize;
1898 res->scanStatus = scanStatus;
1899 res->numberOfEntriesReturned = numberOfEntriesReturned;
1900 res->positionOfTerm = 0;
1901 res->entries = ents;
1902 ents->num_entries = 0;
1903 ents->entries = NULL;
1904 ents->num_nonsurrogateDiagnostics = 0;
1905 ents->nonsurrogateDiagnostics = NULL;
1906 res->attributeSet = 0;
1909 if (req->databaseNames)
1912 for (i = 0; i < req->num_databaseNames; i++)
1913 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1915 bsrr->num_bases = req->num_databaseNames;
1916 bsrr->basenames = req->databaseNames;
1917 bsrr->num_entries = *req->numberOfTermsRequested;
1918 bsrr->term = req->termListAndStartPoint;
1919 bsrr->referenceId = req->referenceId;
1920 bsrr->stream = assoc->encode;
1921 bsrr->print = assoc->print;
1922 bsrr->step_size = res->stepSize;
1924 /* Note that version 2.0 of YAZ and older did not set entries ..
1925 We do now. And when we do it's easier to extend the scan entry
1926 We know that if the scan handler did set entries, it will
1927 not know of new member display_term.
1929 if (bsrr->num_entries > 0)
1932 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
1934 for (i = 0; i<bsrr->num_entries; i++)
1936 bsrr->entries[i].term = 0;
1937 bsrr->entries[i].occurrences = 0;
1938 bsrr->entries[i].errcode = 0;
1939 bsrr->entries[i].errstring = 0;
1940 bsrr->entries[i].display_term = 0;
1943 save_entries = bsrr->entries; /* save it so we can compare later */
1945 if (req->attributeSet &&
1946 (attset = oid_getentbyoid(req->attributeSet)) &&
1947 (attset->oclass == CLASS_ATTSET || attset->oclass == CLASS_GENERAL))
1948 bsrr->attributeset = attset->value;
1950 bsrr->attributeset = VAL_NONE;
1951 log_scan_term (req->termListAndStartPoint, bsrr->attributeset);
1952 bsrr->term_position = req->preferredPositionInResponse ?
1953 *req->preferredPositionInResponse : 1;
1954 ((int (*)(void *, bend_scan_rr *))
1955 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1957 diagrecs_p = diagrecs(assoc, bsrr->errcode, bsrr->errstring);
1961 Z_Entry **tab = (Z_Entry **)
1962 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
1964 if (bsrr->status == BEND_SCAN_PARTIAL)
1965 *scanStatus = Z_Scan_partial_5;
1967 *scanStatus = Z_Scan_success;
1968 ents->entries = tab;
1969 ents->num_entries = bsrr->num_entries;
1970 res->numberOfEntriesReturned = &ents->num_entries;
1971 res->positionOfTerm = &bsrr->term_position;
1972 for (i = 0; i < bsrr->num_entries; i++)
1978 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1979 if (bsrr->entries[i].occurrences >= 0)
1981 e->which = Z_Entry_termInfo;
1982 e->u.termInfo = t = (Z_TermInfo *)
1983 odr_malloc(assoc->encode, sizeof(*t));
1984 t->suggestedAttributes = 0;
1986 if (save_entries == bsrr->entries &&
1987 bsrr->entries[i].display_term)
1989 /* the entries was NOT set by the handler. So it's
1990 safe to test for new member display_term. It is
1993 t->displayTerm = odr_strdup(assoc->encode,
1994 bsrr->entries[i].display_term);
1996 t->alternativeTerm = 0;
1997 t->byAttributes = 0;
1998 t->otherTermInfo = 0;
1999 t->globalOccurrences = &bsrr->entries[i].occurrences;
2000 t->term = (Z_Term *)
2001 odr_malloc(assoc->encode, sizeof(*t->term));
2002 t->term->which = Z_Term_general;
2003 t->term->u.general = o =
2004 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
2005 o->buf = (unsigned char *)
2006 odr_malloc(assoc->encode, o->len = o->size =
2007 strlen(bsrr->entries[i].term));
2008 memcpy(o->buf, bsrr->entries[i].term, o->len);
2009 yaz_log(LOG_DEBUG, " term #%d: '%s' (%d)", i,
2010 bsrr->entries[i].term, bsrr->entries[i].occurrences);
2014 Z_DiagRecs *drecs = diagrecs (assoc,
2015 bsrr->entries[i].errcode,
2016 bsrr->entries[i].errstring);
2017 assert (drecs->num_diagRecs == 1);
2018 e->which = Z_Entry_surrogateDiagnostic;
2019 assert (drecs->diagRecs[0]);
2020 e->u.surrogateDiagnostic = drecs->diagRecs[0];
2026 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
2027 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
2032 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
2035 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
2036 Z_SortResponse *res = (Z_SortResponse *)
2037 odr_malloc (assoc->encode, sizeof(*res));
2038 bend_sort_rr *bsrr = (bend_sort_rr *)
2039 odr_malloc (assoc->encode, sizeof(*bsrr));
2041 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2043 yaz_log(LOG_LOG, "Got SortRequest.");
2045 bsrr->num_input_setnames = req->num_inputResultSetNames;
2046 bsrr->input_setnames = req->inputResultSetNames;
2047 bsrr->referenceId = req->referenceId;
2048 bsrr->output_setname = req->sortedResultSetName;
2049 bsrr->sort_sequence = req->sortSequence;
2050 bsrr->stream = assoc->encode;
2051 bsrr->print = assoc->print;
2053 bsrr->sort_status = Z_SortStatus_failure;
2055 bsrr->errstring = 0;
2057 (*assoc->init->bend_sort)(assoc->backend, bsrr);
2059 res->referenceId = bsrr->referenceId;
2060 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
2061 res->resultSetStatus = 0;
2064 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
2065 res->diagnostics = dr->diagRecs;
2066 res->num_diagnostics = dr->num_diagRecs;
2070 res->num_diagnostics = 0;
2071 res->diagnostics = 0;
2073 res->resultCount = 0;
2076 apdu->which = Z_APDU_sortResponse;
2077 apdu->u.sortResponse = res;
2081 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
2084 Z_DeleteResultSetRequest *req =
2085 reqb->apdu_request->u.deleteResultSetRequest;
2086 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
2087 odr_malloc (assoc->encode, sizeof(*res));
2088 bend_delete_rr *bdrr = (bend_delete_rr *)
2089 odr_malloc (assoc->encode, sizeof(*bdrr));
2090 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2092 yaz_log(LOG_LOG, "Got DeleteRequest.");
2094 bdrr->num_setnames = req->num_resultSetList;
2095 bdrr->setnames = req->resultSetList;
2096 bdrr->stream = assoc->encode;
2097 bdrr->print = assoc->print;
2098 bdrr->function = *req->deleteFunction;
2099 bdrr->referenceId = req->referenceId;
2101 if (bdrr->num_setnames > 0)
2104 bdrr->statuses = (int*)
2105 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
2106 bdrr->num_setnames);
2107 for (i = 0; i < bdrr->num_setnames; i++)
2108 bdrr->statuses[i] = 0;
2110 (*assoc->init->bend_delete)(assoc->backend, bdrr);
2112 res->referenceId = req->referenceId;
2114 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
2116 res->deleteListStatuses = 0;
2117 if (bdrr->num_setnames > 0)
2120 res->deleteListStatuses = (Z_ListStatuses *)
2121 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
2122 res->deleteListStatuses->num = bdrr->num_setnames;
2123 res->deleteListStatuses->elements =
2125 odr_malloc (assoc->encode,
2126 sizeof(*res->deleteListStatuses->elements) *
2127 bdrr->num_setnames);
2128 for (i = 0; i<bdrr->num_setnames; i++)
2130 res->deleteListStatuses->elements[i] =
2132 odr_malloc (assoc->encode,
2133 sizeof(**res->deleteListStatuses->elements));
2134 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
2135 res->deleteListStatuses->elements[i]->id =
2136 odr_strdup (assoc->encode, bdrr->setnames[i]);
2140 res->numberNotDeleted = 0;
2141 res->bulkStatuses = 0;
2142 res->deleteMessage = 0;
2145 apdu->which = Z_APDU_deleteResultSetResponse;
2146 apdu->u.deleteResultSetResponse = res;
2150 static void process_close(association *assoc, request *reqb)
2152 Z_Close *req = reqb->apdu_request->u.close;
2153 static char *reasons[] =
2160 "securityViolation",
2167 yaz_log(LOG_LOG, "Got Close, reason %s, message %s",
2168 reasons[*req->closeReason], req->diagnosticInformation ?
2169 req->diagnosticInformation : "NULL");
2170 if (assoc->version < 3) /* to make do_force respond with close */
2172 do_close_req(assoc, Z_Close_finished,
2173 "Association terminated by client", reqb);
2176 void save_referenceId (request *reqb, Z_ReferenceId *refid)
2180 reqb->len_refid = refid->len;
2181 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
2182 memcpy (reqb->refid, refid->buf, refid->len);
2186 reqb->len_refid = 0;
2191 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
2193 process_z_response (a, req, res);
2196 bend_request bend_request_mk (bend_association a)
2198 request *nreq = request_get (&a->outgoing);
2199 nreq->request_mem = nmem_create ();
2203 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
2208 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
2209 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
2210 id->len = id->size = req->len_refid;
2211 memcpy (id->buf, req->refid, req->len_refid);
2215 void bend_request_destroy (bend_request *req)
2217 nmem_destroy((*req)->request_mem);
2218 request_release(*req);
2222 int bend_backend_respond (bend_association a, bend_request req)
2226 r = process_z_request (a, req, &msg);
2228 yaz_log (LOG_WARN, "%s", msg);
2232 void bend_request_setdata(bend_request r, void *p)
2237 void *bend_request_getdata(bend_request r)
2239 return r->clientData;
2242 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
2244 bend_segment_rr req;
2246 req.segment = reqb->apdu_request->u.segmentRequest;
2247 req.stream = assoc->encode;
2248 req.decode = assoc->decode;
2249 req.print = assoc->print;
2250 req.association = assoc;
2252 (*assoc->init->bend_segment)(assoc->backend, &req);
2257 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
2259 bend_esrequest_rr esrequest;
2261 Z_ExtendedServicesRequest *req =
2262 reqb->apdu_request->u.extendedServicesRequest;
2263 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
2265 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
2267 yaz_log(LOG_DEBUG,"inside Process esRequest");
2269 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
2270 esrequest.stream = assoc->encode;
2271 esrequest.decode = assoc->decode;
2272 esrequest.print = assoc->print;
2273 esrequest.errcode = 0;
2274 esrequest.errstring = NULL;
2275 esrequest.request = reqb;
2276 esrequest.association = assoc;
2277 esrequest.taskPackage = 0;
2278 esrequest.referenceId = req->referenceId;
2280 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
2282 /* If the response is being delayed, return NULL */
2283 if (esrequest.request == NULL)
2286 resp->referenceId = req->referenceId;
2288 if (esrequest.errcode == -1)
2290 /* Backend service indicates request will be processed */
2291 yaz_log(LOG_DEBUG,"Request could be processed...Accepted !");
2292 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
2294 else if (esrequest.errcode == 0)
2296 /* Backend service indicates request will be processed */
2297 yaz_log(LOG_DEBUG,"Request could be processed...Done !");
2298 *resp->operationStatus = Z_ExtendedServicesResponse_done;
2302 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
2303 esrequest.errstring);
2305 /* Backend indicates error, request will not be processed */
2306 yaz_log(LOG_DEBUG,"Request could not be processed...failure !");
2307 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
2308 resp->num_diagnostics = diagRecs->num_diagRecs;
2309 resp->diagnostics = diagRecs->diagRecs;
2311 /* Do something with the members of bend_extendedservice */
2312 if (esrequest.taskPackage)
2313 resp->taskPackage = z_ext_record (assoc->encode, VAL_EXTENDED,
2314 (const char *) esrequest.taskPackage,
2316 yaz_log(LOG_DEBUG,"Send the result apdu");