2 * Copyright (c) 1995-2003, Index Data
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.1 2003-10-27 12:21:35 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|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);
356 if (assoc->print && !z_GDU(assoc->print, &req->gdu_request, 0, 0))
358 yaz_log(LOG_WARN, "ODR print error: %s",
359 odr_errmsg(odr_geterror(assoc->print)));
360 odr_reset(assoc->print);
362 request_enq(&assoc->incoming, req);
365 /* can we do something yet? */
366 req = request_head(&assoc->incoming);
367 if (req->state == REQUEST_IDLE)
369 request_deq(&assoc->incoming);
370 process_gdu_request(assoc, req);
373 if (event & assoc->cs_put_mask)
375 request *req = request_head(&assoc->outgoing);
377 assoc->cs_put_mask = 0;
378 yaz_log(LOG_DEBUG, "ir_session (output)");
379 req->state = REQUEST_PENDING;
380 switch (res = cs_put(conn, req->response, req->len_response))
383 yaz_log(LOG_LOG, "Connection closed by client");
385 destroy_association(assoc);
388 case 0: /* all sent - release the request structure */
389 yaz_log(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
391 yaz_log(LOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
394 nmem_destroy(req->request_mem);
395 request_deq(&assoc->outgoing);
396 request_release(req);
397 if (!request_head(&assoc->outgoing))
398 { /* restore mask for cs_get operation ... */
399 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
400 iochan_setflag(h, assoc->cs_get_mask);
401 if (assoc->state == ASSOC_DEAD)
402 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
406 assoc->cs_put_mask = EVENT_OUTPUT;
410 if (conn->io_pending & CS_WANT_WRITE)
411 assoc->cs_put_mask |= EVENT_OUTPUT;
412 if (conn->io_pending & CS_WANT_READ)
413 assoc->cs_put_mask |= EVENT_INPUT;
414 iochan_setflag(h, assoc->cs_put_mask);
417 if (event & EVENT_EXCEPT)
419 yaz_log(LOG_LOG, "ir_session (exception)");
421 destroy_association(assoc);
426 static int process_z_request(association *assoc, request *req, char **msg);
428 static void assoc_init_reset(association *assoc)
431 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
433 assoc->init->stream = assoc->encode;
434 assoc->init->print = assoc->print;
435 assoc->init->auth = 0;
436 assoc->init->referenceId = 0;
437 assoc->init->implementation_version = 0;
438 assoc->init->implementation_id = 0;
439 assoc->init->implementation_name = 0;
440 assoc->init->bend_sort = NULL;
441 assoc->init->bend_search = NULL;
442 assoc->init->bend_present = NULL;
443 assoc->init->bend_esrequest = NULL;
444 assoc->init->bend_delete = NULL;
445 assoc->init->bend_scan = NULL;
446 assoc->init->bend_segment = NULL;
447 assoc->init->bend_fetch = NULL;
448 assoc->init->bend_explain = NULL;
450 assoc->init->charneg_request = NULL;
451 assoc->init->charneg_response = NULL;
453 assoc->init->decode = assoc->decode;
454 assoc->init->peer_name =
455 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
458 static int srw_bend_init(association *assoc)
460 const char *encoding = "UTF-8";
462 bend_initresult *binitres;
463 statserv_options_block *cb = statserv_getcontrol();
465 assoc_init_reset(assoc);
467 assoc->maximumRecordSize = 3000000;
468 assoc->preferredMessageSize = 3000000;
470 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
471 assoc->init->charneg_request = ce->u.charNeg3;
473 if (!(binitres = (*cb->bend_init)(assoc->init)))
475 yaz_log(LOG_WARN, "Bad response from backend.");
478 assoc->backend = binitres->handle;
482 static int srw_bend_fetch(association *assoc, int pos,
483 Z_SRW_searchRetrieveRequest *srw_req,
484 Z_SRW_record *record)
487 ODR o = assoc->encode;
489 rr.setname = "default";
492 rr.request_format = VAL_TEXT_XML;
493 rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
496 rr.comp = (Z_RecordComposition *)
497 odr_malloc(assoc->decode, sizeof(*rr.comp));
498 rr.comp->which = Z_RecordComp_complex;
499 rr.comp->u.complex = (Z_CompSpec *)
500 odr_malloc(assoc->decode, sizeof(Z_CompSpec));
501 rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
502 odr_malloc(assoc->encode, sizeof(bool_t));
503 *rr.comp->u.complex->selectAlternativeSyntax = 0;
504 rr.comp->u.complex->num_dbSpecific = 0;
505 rr.comp->u.complex->dbSpecific = 0;
506 rr.comp->u.complex->num_recordSyntax = 0;
507 rr.comp->u.complex->recordSyntax = 0;
509 rr.comp->u.complex->generic = (Z_Specification *)
510 odr_malloc(assoc->decode, sizeof(Z_Specification));
511 rr.comp->u.complex->generic->which = Z_Schema_uri;
512 rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
513 rr.comp->u.complex->generic->elementSpec = 0;
515 rr.stream = assoc->encode;
516 rr.print = assoc->print;
522 rr.output_format = VAL_TEXT_XML;
523 rr.output_format_raw = 0;
526 rr.surrogate_flag = 0;
527 rr.schema = srw_req->recordSchema;
529 if (!assoc->init->bend_fetch)
532 (*assoc->init->bend_fetch)(assoc->backend, &rr);
536 record->recordData_buf = rr.record;
537 record->recordData_len = rr.len;
538 record->recordPosition = odr_intdup(o, pos);
540 record->recordSchema = odr_strdup(o, rr.schema);
542 record->recordSchema = 0;
547 static void srw_bend_search(association *assoc, request *req,
548 Z_SRW_searchRetrieveRequest *srw_req,
549 Z_SRW_searchRetrieveResponse *srw_res)
555 yaz_log(LOG_LOG, "Got SRW SearchRetrieveRequest");
556 yaz_log(LOG_DEBUG, "srw_bend_search");
559 yaz_log(LOG_DEBUG, "srw_bend_init");
560 if (!srw_bend_init(assoc))
562 srw_error = 3; /* assume Authentication error */
564 srw_res->num_diagnostics = 1;
565 srw_res->diagnostics = (Z_SRW_diagnostic *)
566 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
567 srw_res->diagnostics[0].code =
568 odr_intdup(assoc->encode, srw_error);
569 srw_res->diagnostics[0].details = 0;
574 rr.setname = "default";
577 rr.basenames = &srw_req->database;
580 rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
582 if (srw_req->query_type == Z_SRW_query_type_cql)
584 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
585 ext->direct_reference = odr_getoidbystr(assoc->decode,
586 "1.2.840.10003.16.2");
587 ext->indirect_reference = 0;
589 ext->which = Z_External_CQL;
590 ext->u.cql = srw_req->query.cql;
592 rr.query->which = Z_Query_type_104;
593 rr.query->u.type_104 = ext;
595 else if (srw_req->query_type == Z_SRW_query_type_pqf)
597 Z_RPNQuery *RPNquery;
598 YAZ_PQF_Parser pqf_parser;
600 pqf_parser = yaz_pqf_create ();
602 RPNquery = yaz_pqf_parse (pqf_parser, assoc->decode,
608 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
609 yaz_log(LOG_LOG, "%*s^\n", off+4, "");
610 yaz_log(LOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
615 rr.query->which = Z_Query_type_1;
616 rr.query->u.type_1 = RPNquery;
618 yaz_pqf_destroy (pqf_parser);
623 if (!srw_error && srw_req->sort_type != Z_SRW_sort_type_none)
626 if (!srw_error && !assoc->init->bend_search)
631 yaz_log(LOG_DEBUG, "srw_bend_search returned SRW error %d", srw_error);
632 srw_res->num_diagnostics = 1;
633 srw_res->diagnostics = (Z_SRW_diagnostic *)
634 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
635 srw_res->diagnostics[0].code =
636 odr_intdup(assoc->encode, srw_error);
637 srw_res->diagnostics[0].details = 0;
641 rr.stream = assoc->encode;
642 rr.decode = assoc->decode;
643 rr.print = assoc->print;
645 rr.association = assoc;
651 yaz_log_zquery(rr.query);
652 (assoc->init->bend_search)(assoc->backend, &rr);
653 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
656 yaz_log(LOG_DEBUG, "bend_search returned Bib-1 code %d", rr.errcode);
657 srw_res->num_diagnostics = 1;
658 srw_res->diagnostics = (Z_SRW_diagnostic *)
659 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
660 srw_res->diagnostics[0].code =
661 odr_intdup(assoc->encode,
662 yaz_diag_bib1_to_srw (rr.errcode));
663 srw_res->diagnostics[0].details = rr.errstring;
664 yaz_log(LOG_DEBUG, "srw_bend_search returned SRW error %d",
665 *srw_res->diagnostics[0].code);
670 int number = srw_req->maximumRecords ? *srw_req->maximumRecords : 0;
671 int start = srw_req->startRecord ? *srw_req->startRecord : 1;
673 yaz_log(LOG_LOG, "Request to pack %d+%d out of %d",
674 start, number, rr.hits);
676 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
683 yaz_log(LOG_LOG, "Request out or range");
688 int packing = Z_SRW_recordPacking_string;
689 if (start + number > rr.hits)
690 number = rr.hits - start + 1;
691 if (srw_req->recordPacking &&
692 !strcmp(srw_req->recordPacking, "xml"))
693 packing = Z_SRW_recordPacking_XML;
694 srw_res->records = (Z_SRW_record *)
695 odr_malloc(assoc->encode,
696 number * sizeof(*srw_res->records));
697 for (i = 0; i<number; i++)
701 srw_res->records[j].recordPacking = packing;
702 srw_res->records[j].recordData_buf = 0;
703 yaz_log(LOG_DEBUG, "srw_bend_fetch %d", i+start);
704 errcode = srw_bend_fetch(assoc, i+start, srw_req,
705 srw_res->records + j);
708 srw_res->num_diagnostics = 1;
709 srw_res->diagnostics = (Z_SRW_diagnostic *)
710 odr_malloc(assoc->encode,
711 sizeof(*srw_res->diagnostics));
712 srw_res->diagnostics[0].code =
713 odr_intdup(assoc->encode,
714 yaz_diag_bib1_to_srw (errcode));
715 srw_res->diagnostics[0].details = rr.errstring;
718 if (srw_res->records[j].recordData_buf)
721 srw_res->num_records = j;
723 srw_res->records = 0;
730 static void srw_bend_explain(association *assoc, request *req,
731 Z_SRW_explainRequest *srw_req,
732 Z_SRW_explainResponse *srw_res)
734 yaz_log(LOG_LOG, "Got SRW ExplainRequest");
737 yaz_log(LOG_DEBUG, "srw_bend_init");
738 if (!srw_bend_init(assoc))
741 if (assoc->init && assoc->init->bend_explain)
745 rr.stream = assoc->encode;
746 rr.decode = assoc->decode;
747 rr.print = assoc->print;
749 (*assoc->init->bend_explain)(assoc->backend, &rr);
752 srw_res->explainData_buf = rr.explain_buf;
753 srw_res->explainData_len = strlen(rr.explain_buf);
758 static int hex_digit (int ch)
760 if (ch >= '0' && ch <= '9')
762 else if (ch >= 'a' && ch <= 'f')
764 else if (ch >= 'A' && ch <= 'F')
769 static char *uri_val(const char *path, const char *name, ODR o)
771 size_t nlen = strlen(name);
775 while (path && *path)
777 const char *p1 = strchr(path, '=');
780 if ((size_t)(p1 - path) == nlen && !memcmp(path, name, nlen))
786 p1 = strchr(path, '&');
788 p1 = strlen(path) + path;
789 ret = odr_malloc(o, p1 - path + 1);
790 while (*path && *path != '&')
797 else if (*path == '%' && path[1] && path[2])
799 ret[i++] = hex_digit (path[1])*16 + hex_digit (path[2]);
808 path = strchr(p1, '&');
815 void uri_val_int(const char *path, const char *name, ODR o, int **intp)
817 const char *v = uri_val(path, name, o);
819 *intp = odr_intdup(o, atoi(v));
822 static void process_http_request(association *assoc, request *req)
824 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
825 ODR o = assoc->encode;
827 Z_HTTP_Response *hres = 0;
830 if (!strcmp(hreq->method, "GET"))
832 char *db = "Default";
833 const char *p0 = hreq->path, *p1;
837 Z_SOAP *soap_package = 0;
838 static Z_SOAP_Handler soap_handlers[2] = {
839 {"http://www.loc.gov/zing/srw/v1.0/", 0,
840 (Z_SOAP_fun) yaz_srw_codec},
847 p1 = strchr(p0, '?');
849 p1 = p0 + strlen(p0);
852 db = odr_malloc(assoc->decode, p1 - p0 + 1);
853 memcpy (db, p0, p1 - p0);
857 if (p1 && *p1 == '?' && p1[1])
859 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
860 Z_SRW_PDU *sr = yaz_srw_get(o, Z_SRW_searchRetrieve_request);
861 char *query = uri_val(p1, "query", o);
862 char *pQuery = uri_val(p1, "pQuery", o);
863 char *sortKeys = uri_val(p1, "sortKeys", o);
867 sr->u.request->query_type = Z_SRW_query_type_cql;
868 sr->u.request->query.cql = query;
872 sr->u.request->query_type = Z_SRW_query_type_pqf;
873 sr->u.request->query.pqf = pQuery;
877 sr->u.request->sort_type = Z_SRW_sort_type_sort;
878 sr->u.request->sort.sortKeys = sortKeys;
880 sr->u.request->recordSchema = uri_val(p1, "recordSchema", o);
881 sr->u.request->recordPacking = uri_val(p1, "recordPacking", o);
882 if (!sr->u.request->recordPacking)
883 sr->u.request->recordPacking = "xml";
884 uri_val_int(p1, "maximumRecords", o,
885 &sr->u.request->maximumRecords);
886 uri_val_int(p1, "startRecord", o,
887 &sr->u.request->startRecord);
888 if (sr->u.request->startRecord)
889 yaz_log(LOG_LOG, "startRecord=%d", *sr->u.request->startRecord);
890 sr->u.request->database = db;
891 srw_bend_search(assoc, req, sr->u.request, res->u.response);
893 soap_package = odr_malloc(o, sizeof(*soap_package));
894 soap_package->which = Z_SOAP_generic;
896 soap_package->u.generic =
897 odr_malloc(o, sizeof(*soap_package->u.generic));
899 soap_package->u.generic->p = res;
900 soap_package->u.generic->ns = soap_handlers[0].ns;
901 soap_package->u.generic->no = 0;
903 soap_package->ns = "SRU";
905 p = z_get_HTTP_Response(o, 200);
906 hres = p->u.HTTP_Response;
908 ret = z_soap_codec_enc(assoc->encode, &soap_package,
909 &hres->content_buf, &hres->content_len,
910 soap_handlers, charset);
912 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
916 strcpy(ctype, "text/xml; charset=");
917 strcat(ctype, charset);
918 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
924 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_explain_response);
925 Z_SRW_PDU *sr = yaz_srw_get(o, Z_SRW_explain_request);
927 srw_bend_explain(assoc, req, sr->u.explain_request,
928 res->u.explain_response);
930 if (res->u.explain_response->explainData_buf)
932 soap_package = odr_malloc(o, sizeof(*soap_package));
933 soap_package->which = Z_SOAP_generic;
935 soap_package->u.generic =
936 odr_malloc(o, sizeof(*soap_package->u.generic));
938 soap_package->u.generic->p = res;
939 soap_package->u.generic->ns = soap_handlers[0].ns;
940 soap_package->u.generic->no = 0;
942 soap_package->ns = "SRU";
944 p = z_get_HTTP_Response(o, 200);
945 hres = p->u.HTTP_Response;
947 ret = z_soap_codec_enc(assoc->encode, &soap_package,
948 &hres->content_buf, &hres->content_len,
949 soap_handlers, charset);
951 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
955 strcpy(ctype, "text/xml; charset=");
956 strcat(ctype, charset);
957 z_HTTP_header_add(o, &hres->headers, "Content-Type",
964 if (strlen(hreq->path) >= 5 && strlen(hreq->path) < 80 &&
965 !memcmp(hreq->path, "/doc/", 5))
970 strcpy(fpath, DOCDIR);
971 strcat(fpath, hreq->path+4);
972 f = fopen(fpath, "rb");
975 if (fstat(fileno(f), &sbuf) || !S_ISREG(sbuf.st_mode))
984 fseek(f, 0L, SEEK_END);
986 if (sz >= 0 && sz < 500000)
988 const char *ctype = "application/octet-stream";
991 p = z_get_HTTP_Response(o, 200);
992 hres = p->u.HTTP_Response;
993 hres->content_buf = (char *) odr_malloc(o, sz + 1);
994 hres->content_len = sz;
995 fseek(f, 0L, SEEK_SET);
996 fread(hres->content_buf, 1, sz, f);
997 if ((cp = strrchr(fpath, '.'))) {
999 if (!strcmp(cp, "png"))
1000 ctype = "image/png";
1001 else if (!strcmp(cp, "gif"))
1002 ctype = "image/gif";
1003 else if (!strcmp(cp, "xml"))
1005 else if (!strcmp(cp, "html"))
1006 ctype = "text/html";
1008 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1016 if (!strcmp(hreq->path, "/"))
1021 const char *doclink = "";
1022 p = z_get_HTTP_Response(o, 200);
1023 hres = p->u.HTTP_Response;
1024 hres->content_buf = (char *) odr_malloc(o, 400);
1026 if (stat(DOCDIR "/yaz.html", &sbuf) == 0 && S_ISREG(sbuf.st_mode))
1027 doclink = "<P><A HREF=\"/doc/yaz.html\">Documentation</A></P>";
1029 sprintf (hres->content_buf,
1030 "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
1033 " <TITLE>YAZ " YAZ_VERSION "</TITLE>\n"
1036 " <P><A HREF=\"http://www.indexdata.dk/yaz/\">YAZ</A> "
1037 YAZ_VERSION "</P>\n"
1040 "</HTML>\n", doclink);
1041 hres->content_len = strlen(hres->content_buf);
1042 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/html");
1048 p = z_get_HTTP_Response(o, 404);
1051 else if (!strcmp(hreq->method, "POST"))
1053 const char *content_type = z_HTTP_header_lookup(hreq->headers,
1055 if (content_type && !yaz_strcmp_del("text/xml", content_type, "; "))
1057 Z_SOAP *soap_package = 0;
1059 int http_code = 500;
1060 const char *charset_p = 0;
1063 static Z_SOAP_Handler soap_handlers[2] = {
1065 {"http://www.loc.gov/zing/srw/v1.0/", 0,
1066 (Z_SOAP_fun) yaz_srw_codec},
1070 if ((charset_p = strstr(content_type, "; charset=")))
1074 while (i < 20 && charset_p[i] &&
1075 !strchr("; \n\r", charset_p[i]))
1077 charset = odr_malloc(assoc->encode, i+1);
1078 memcpy(charset, charset_p, i);
1080 yaz_log(LOG_LOG, "SOAP encoding %s", charset);
1082 ret = z_soap_codec(assoc->decode, &soap_package,
1083 &hreq->content_buf, &hreq->content_len,
1086 if (!ret && soap_package->which == Z_SOAP_generic &&
1087 soap_package->u.generic->no == 0)
1090 Z_SRW_PDU *sr = soap_package->u.generic->p;
1092 if (sr->which == Z_SRW_searchRetrieve_request)
1095 yaz_srw_get(assoc->encode,
1096 Z_SRW_searchRetrieve_response);
1098 if (!sr->u.request->database)
1100 const char *p0 = hreq->path, *p1;
1103 p1 = strchr(p0, '?');
1105 p1 = p0 + strlen(p0);
1108 sr->u.request->database =
1109 odr_malloc(assoc->decode, p1 - p0 + 1);
1110 memcpy (sr->u.request->database, p0, p1 - p0);
1111 sr->u.request->database[p1 - p0] = '\0';
1114 sr->u.request->database = "Default";
1116 srw_bend_search(assoc, req, sr->u.request,
1119 soap_package->u.generic->p = res;
1122 else if (sr->which == Z_SRW_explain_request)
1125 yaz_srw_get(assoc->encode, Z_SRW_explain_response);
1127 srw_bend_explain(assoc, req, sr->u.explain_request,
1128 res->u.explain_response);
1129 if (!res->u.explain_response->explainData_buf)
1131 z_soap_error(assoc->encode, soap_package,
1132 "SOAP-ENV:Client", "Explain Not Supported", 0);
1136 soap_package->u.generic->p = res;
1142 z_soap_error(assoc->encode, soap_package,
1143 "SOAP-ENV:Client", "Bad method", 0);
1147 p = z_get_HTTP_Response(o, 200);
1148 hres = p->u.HTTP_Response;
1149 ret = z_soap_codec_enc(assoc->encode, &soap_package,
1150 &hres->content_buf, &hres->content_len,
1151 soap_handlers, charset);
1152 hres->code = http_code;
1154 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
1158 strcpy(ctype, "text/xml; charset=");
1159 strcat(ctype, charset);
1160 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1163 if (!p) /* still no response ? */
1164 p = z_get_HTTP_Response(o, 500);
1168 p = z_get_HTTP_Response(o, 405);
1169 hres = p->u.HTTP_Response;
1171 z_HTTP_header_add(o, &hres->headers, "Allow", "GET, POST");
1173 hres = p->u.HTTP_Response;
1174 if (!strcmp(hreq->version, "1.0"))
1176 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1177 if (v && !strcmp(v, "Keep-Alive"))
1181 hres->version = "1.0";
1185 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1186 if (v && !strcmp(v, "close"))
1190 hres->version = "1.1";
1194 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1195 assoc->state = ASSOC_DEAD;
1200 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1202 if (alive && isdigit(*alive))
1206 if (t < 0 || t > 3600)
1208 iochan_settimeout(assoc->client_chan,t);
1209 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1211 process_gdu_response(assoc, req, p);
1214 static void process_gdu_request(association *assoc, request *req)
1216 if (req->gdu_request->which == Z_GDU_Z3950)
1219 req->apdu_request = req->gdu_request->u.z3950;
1220 if (process_z_request(assoc, req, &msg) < 0)
1221 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1223 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1224 process_http_request(assoc, req);
1227 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1232 * Initiate request processing.
1234 static int process_z_request(association *assoc, request *req, char **msg)
1240 *msg = "Unknown Error";
1241 assert(req && req->state == REQUEST_IDLE);
1242 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1244 *msg = "Missing InitRequest";
1247 switch (req->apdu_request->which)
1249 case Z_APDU_initRequest:
1250 iochan_settimeout(assoc->client_chan,
1251 statserv_getcontrol()->idle_timeout * 60);
1252 res = process_initRequest(assoc, req); break;
1253 case Z_APDU_searchRequest:
1254 res = process_searchRequest(assoc, req, &fd); break;
1255 case Z_APDU_presentRequest:
1256 res = process_presentRequest(assoc, req, &fd); break;
1257 case Z_APDU_scanRequest:
1258 if (assoc->init->bend_scan)
1259 res = process_scanRequest(assoc, req, &fd);
1262 *msg = "Cannot handle Scan APDU";
1266 case Z_APDU_extendedServicesRequest:
1267 if (assoc->init->bend_esrequest)
1268 res = process_ESRequest(assoc, req, &fd);
1271 *msg = "Cannot handle Extended Services APDU";
1275 case Z_APDU_sortRequest:
1276 if (assoc->init->bend_sort)
1277 res = process_sortRequest(assoc, req, &fd);
1280 *msg = "Cannot handle Sort APDU";
1285 process_close(assoc, req);
1287 case Z_APDU_deleteResultSetRequest:
1288 if (assoc->init->bend_delete)
1289 res = process_deleteRequest(assoc, req, &fd);
1292 *msg = "Cannot handle Delete APDU";
1296 case Z_APDU_segmentRequest:
1297 if (assoc->init->bend_segment)
1299 res = process_segmentRequest (assoc, req);
1303 *msg = "Cannot handle Segment APDU";
1308 *msg = "Bad APDU received";
1313 yaz_log(LOG_DEBUG, " result immediately available");
1314 retval = process_z_response(assoc, req, res);
1318 yaz_log(LOG_DEBUG, " result unavailble");
1321 else /* no result yet - one will be provided later */
1325 /* Set up an I/O handler for the fd supplied by the backend */
1327 yaz_log(LOG_DEBUG, " establishing handler for result");
1328 req->state = REQUEST_PENDING;
1329 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
1331 iochan_setdata(chan, assoc);
1338 * Handle message from the backend.
1340 void backend_response(IOCHAN i, int event)
1342 association *assoc = (association *)iochan_getdata(i);
1343 request *req = request_head(&assoc->incoming);
1347 yaz_log(LOG_DEBUG, "backend_response");
1348 assert(assoc && req && req->state != REQUEST_IDLE);
1349 /* determine what it is we're waiting for */
1350 switch (req->apdu_request->which)
1352 case Z_APDU_searchRequest:
1353 res = response_searchRequest(assoc, req, 0, &fd); break;
1355 case Z_APDU_presentRequest:
1356 res = response_presentRequest(assoc, req, 0, &fd); break;
1357 case Z_APDU_scanRequest:
1358 res = response_scanRequest(assoc, req, 0, &fd); break;
1361 yaz_log(LOG_WARN, "Serious programmer's lapse or bug");
1364 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
1366 yaz_log(LOG_LOG, "Fatal error when talking to backend");
1367 do_close(assoc, Z_Close_systemProblem, 0);
1371 else if (!res) /* no result yet - try again later */
1373 yaz_log(LOG_DEBUG, " no result yet");
1374 iochan_setfd(i, fd); /* in case fd has changed */
1379 * Encode response, and transfer the request structure to the outgoing queue.
1381 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
1383 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
1385 if (assoc->print && !z_GDU(assoc->print, &res, 0, 0))
1387 yaz_log(LOG_WARN, "ODR print error: %s",
1388 odr_errmsg(odr_geterror(assoc->print)));
1389 odr_reset(assoc->print);
1391 if (!z_GDU(assoc->encode, &res, 0, 0))
1393 yaz_log(LOG_WARN, "ODR error when encoding PDU: %s [element %s]",
1394 odr_errmsg(odr_geterror(assoc->decode)),
1395 odr_getelement(assoc->decode));
1396 request_release(req);
1399 req->response = odr_getbuf(assoc->encode, &req->len_response,
1400 &req->size_response);
1401 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
1402 odr_reset(assoc->encode);
1403 req->state = REQUEST_IDLE;
1404 request_enq(&assoc->outgoing, req);
1405 /* turn the work over to the ir_session handler */
1406 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
1407 assoc->cs_put_mask = EVENT_OUTPUT;
1408 /* Is there more work to be done? give that to the input handler too */
1410 if (request_head(&assoc->incoming))
1412 yaz_log (LOG_DEBUG, "more work to be done");
1413 iochan_setevent(assoc->client_chan, EVENT_WORK);
1420 * Encode response, and transfer the request structure to the outgoing queue.
1422 static int process_z_response(association *assoc, request *req, Z_APDU *res)
1424 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
1425 gres->which = Z_GDU_Z3950;
1426 gres->u.z3950 = res;
1428 return process_gdu_response(assoc, req, gres);
1433 * Handle init request.
1434 * At the moment, we don't check the options
1435 * anywhere else in the code - we just try not to do anything that would
1436 * break a naive client. We'll toss 'em into the association block when
1437 * we need them there.
1439 static Z_APDU *process_initRequest(association *assoc, request *reqb)
1441 statserv_options_block *cb = statserv_getcontrol();
1442 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
1443 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
1444 Z_InitResponse *resp = apdu->u.initResponse;
1445 bend_initresult *binitres;
1449 yaz_log(LOG_LOG, "Got initRequest");
1450 if (req->implementationId)
1451 yaz_log(LOG_LOG, "Id: %s", req->implementationId);
1452 if (req->implementationName)
1453 yaz_log(LOG_LOG, "Name: %s", req->implementationName);
1454 if (req->implementationVersion)
1455 yaz_log(LOG_LOG, "Version: %s", req->implementationVersion);
1457 assoc_init_reset(assoc);
1459 assoc->init->auth = req->idAuthentication;
1460 assoc->init->referenceId = req->referenceId;
1462 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
1464 Z_CharSetandLanguageNegotiation *negotiation =
1465 yaz_get_charneg_record (req->otherInfo);
1466 if (negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1467 assoc->init->charneg_request = negotiation;
1470 if (!(binitres = (*cb->bend_init)(assoc->init)))
1472 yaz_log(LOG_WARN, "Bad response from backend.");
1476 assoc->backend = binitres->handle;
1477 if ((assoc->init->bend_sort))
1478 yaz_log (LOG_DEBUG, "Sort handler installed");
1479 if ((assoc->init->bend_search))
1480 yaz_log (LOG_DEBUG, "Search handler installed");
1481 if ((assoc->init->bend_present))
1482 yaz_log (LOG_DEBUG, "Present handler installed");
1483 if ((assoc->init->bend_esrequest))
1484 yaz_log (LOG_DEBUG, "ESRequest handler installed");
1485 if ((assoc->init->bend_delete))
1486 yaz_log (LOG_DEBUG, "Delete handler installed");
1487 if ((assoc->init->bend_scan))
1488 yaz_log (LOG_DEBUG, "Scan handler installed");
1489 if ((assoc->init->bend_segment))
1490 yaz_log (LOG_DEBUG, "Segment handler installed");
1492 resp->referenceId = req->referenceId;
1494 /* let's tell the client what we can do */
1495 if (ODR_MASK_GET(req->options, Z_Options_search))
1497 ODR_MASK_SET(resp->options, Z_Options_search);
1498 strcat(options, "srch");
1500 if (ODR_MASK_GET(req->options, Z_Options_present))
1502 ODR_MASK_SET(resp->options, Z_Options_present);
1503 strcat(options, " prst");
1505 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
1506 assoc->init->bend_delete)
1508 ODR_MASK_SET(resp->options, Z_Options_delSet);
1509 strcat(options, " del");
1511 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
1512 assoc->init->bend_esrequest)
1514 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
1515 strcat (options, " extendedServices");
1517 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
1519 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
1520 strcat(options, " namedresults");
1522 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
1524 ODR_MASK_SET(resp->options, Z_Options_scan);
1525 strcat(options, " scan");
1527 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
1529 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
1530 strcat(options, " concurrop");
1532 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
1534 ODR_MASK_SET(resp->options, Z_Options_sort);
1535 strcat(options, " sort");
1538 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)
1539 && assoc->init->charneg_response)
1541 Z_OtherInformation **p;
1542 Z_OtherInformationUnit *p0;
1544 yaz_oi_APDU(apdu, &p);
1546 if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
1547 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
1549 p0->which = Z_OtherInfo_externallyDefinedInfo;
1550 p0->information.externallyDefinedInfo =
1551 assoc->init->charneg_response;
1553 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
1554 strcat(options, " negotiation");
1557 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
1559 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
1560 assoc->version = 2; /* 1 & 2 are equivalent */
1562 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
1564 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
1567 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
1569 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
1573 yaz_log(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
1574 assoc->maximumRecordSize = *req->maximumRecordSize;
1575 if (assoc->maximumRecordSize > control_block->maxrecordsize)
1576 assoc->maximumRecordSize = control_block->maxrecordsize;
1577 assoc->preferredMessageSize = *req->preferredMessageSize;
1578 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
1579 assoc->preferredMessageSize = assoc->maximumRecordSize;
1581 resp->preferredMessageSize = &assoc->preferredMessageSize;
1582 resp->maximumRecordSize = &assoc->maximumRecordSize;
1584 resp->implementationName = "GFS/YAZ";
1586 if (assoc->init->implementation_id)
1589 odr_malloc (assoc->encode,
1590 strlen(assoc->init->implementation_id) + 10 +
1591 strlen(resp->implementationId));
1592 sprintf (nv, "%s / %s",
1593 resp->implementationId, assoc->init->implementation_id);
1594 resp->implementationId = nv;
1596 if (assoc->init->implementation_name)
1599 odr_malloc (assoc->encode,
1600 strlen(assoc->init->implementation_name) + 10 +
1601 strlen(resp->implementationName));
1602 sprintf (nv, "%s / %s",
1603 resp->implementationName, assoc->init->implementation_name);
1604 resp->implementationName = nv;
1606 if (assoc->init->implementation_version)
1609 odr_malloc (assoc->encode,
1610 strlen(assoc->init->implementation_version) + 10 +
1611 strlen(resp->implementationVersion));
1612 sprintf (nv, "YAZ %s / %s",
1613 resp->implementationVersion,
1614 assoc->init->implementation_version);
1615 resp->implementationVersion = nv;
1618 if (binitres->errcode)
1620 yaz_log(LOG_LOG, "Connection rejected by backend.");
1622 assoc->state = ASSOC_DEAD;
1623 resp->userInformationField = init_diagnostics(assoc->encode,
1625 binitres->errstring);
1628 assoc->state = ASSOC_UP;
1633 * Diagnostic in default format, to be returned as either a surrogate
1634 * or non-surrogate diagnostic in the context of an open session, or
1635 * as User-information when an Init is refused.
1637 static Z_DefaultDiagFormat *justdiag(ODR odr, int error, char *addinfo)
1639 int *err = odr_intdup(odr, error);
1640 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
1641 odr_malloc (odr, sizeof(*dr));
1643 yaz_log(LOG_LOG, "[%d] %s%s%s", error, diagbib1_str(error),
1644 addinfo ? " -- " : "", addinfo ? addinfo : "");
1646 dr->diagnosticSetId =
1647 yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
1648 dr->condition = err;
1649 dr->which = Z_DefaultDiagFormat_v2Addinfo;
1650 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
1655 * Set the specified `errcode' and `errstring' into a UserInfo-1
1656 * external to be returned to the client in accordance with Z35.90
1657 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
1658 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
1660 static Z_External *init_diagnostics(ODR odr, int error, char *addinfo)
1664 Z_OtherInformation *u;
1665 Z_OtherInformationUnit *l;
1666 Z_DiagnosticFormat *d;
1667 Z_DiagnosticFormat_s *e;
1669 x = (Z_External*) odr_malloc(odr, sizeof *x);
1671 x->indirect_reference = 0;
1672 oid.proto = PROTO_Z3950;
1673 oid.oclass = CLASS_USERINFO;
1674 oid.value = VAL_USERINFO1;
1675 x->direct_reference = odr_oiddup(odr, oid_getoidbyent(&oid));
1676 x->which = Z_External_userInfo1;
1678 u = odr_malloc(odr, sizeof *u);
1680 u->num_elements = 1;
1681 u->list = (Z_OtherInformationUnit**) odr_malloc(odr, sizeof *u->list);
1682 u->list[0] = (Z_OtherInformationUnit*) odr_malloc(odr, sizeof *u->list[0]);
1685 l->which = Z_OtherInfo_externallyDefinedInfo;
1687 x2 = (Z_External*) odr_malloc(odr, sizeof *x);
1688 l->information.externallyDefinedInfo = x2;
1690 x2->indirect_reference = 0;
1691 oid.oclass = CLASS_DIAGSET;
1692 oid.value = VAL_DIAG1;
1693 x2->direct_reference = odr_oiddup(odr, oid_getoidbyent(&oid));
1694 x2->which = Z_External_diag1;
1696 d = (Z_DiagnosticFormat*) odr_malloc(odr, sizeof *d);
1699 d->elements = (Z_DiagnosticFormat_s**) odr_malloc (odr, sizeof *d->elements);
1700 d->elements[0] = (Z_DiagnosticFormat_s*) odr_malloc (odr, sizeof *d->elements[0]);
1703 e->which = Z_DiagnosticFormat_s_defaultDiagRec;
1704 e->u.defaultDiagRec = justdiag(odr, error, addinfo);
1709 * nonsurrogate diagnostic record.
1711 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
1713 Z_Records *rec = (Z_Records *)
1714 odr_malloc (assoc->encode, sizeof(*rec));
1715 rec->which = Z_Records_NSD;
1716 rec->u.nonSurrogateDiagnostic = justdiag(assoc->encode, error, addinfo);
1721 * surrogate diagnostic.
1723 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
1724 int error, char *addinfo)
1726 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
1727 odr_malloc (assoc->encode, sizeof(*rec));
1728 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1730 yaz_log(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
1731 rec->databaseName = dbname;
1732 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
1733 rec->u.surrogateDiagnostic = drec;
1734 drec->which = Z_DiagRec_defaultFormat;
1735 drec->u.defaultFormat = justdiag(assoc->encode, error, addinfo);
1741 * multiple nonsurrogate diagnostics.
1743 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
1745 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
1746 int *err = odr_intdup(assoc->encode, error);
1747 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
1748 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1749 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)
1750 odr_malloc (assoc->encode, sizeof(*rec));
1752 yaz_log(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1754 recs->num_diagRecs = 1;
1755 recs->diagRecs = recp;
1757 drec->which = Z_DiagRec_defaultFormat;
1758 drec->u.defaultFormat = rec;
1760 rec->diagnosticSetId =
1761 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
1762 rec->condition = err;
1764 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1765 rec->u.v2Addinfo = odr_strdup (assoc->encode, addinfo ? addinfo : "");
1769 static Z_Records *pack_records(association *a, char *setname, int start,
1770 int *num, Z_RecordComposition *comp,
1771 int *next, int *pres, oid_value format,
1772 Z_ReferenceId *referenceId,
1775 int recno, total_length = 0, toget = *num, dumped_records = 0;
1776 Z_Records *records =
1777 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1778 Z_NamePlusRecordList *reclist =
1779 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1780 Z_NamePlusRecord **list =
1781 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1783 records->which = Z_Records_DBOSD;
1784 records->u.databaseOrSurDiagnostics = reclist;
1785 reclist->num_records = 0;
1786 reclist->records = list;
1787 *pres = Z_PRES_SUCCESS;
1791 yaz_log(LOG_LOG, "Request to pack %d+%d+%s", start, toget, setname);
1792 yaz_log(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1793 a->maximumRecordSize);
1794 for (recno = start; reclist->num_records < toget; recno++)
1797 Z_NamePlusRecord *thisrec;
1798 int this_length = 0;
1800 * we get the number of bytes allocated on the stream before any
1801 * allocation done by the backend - this should give us a reasonable
1802 * idea of the total size of the data so far.
1804 total_length = odr_total(a->encode) - dumped_records;
1810 freq.last_in_set = 0;
1811 freq.setname = setname;
1812 freq.surrogate_flag = 0;
1813 freq.number = recno;
1815 freq.request_format = format;
1816 freq.request_format_raw = oid;
1817 freq.output_format = format;
1818 freq.output_format_raw = 0;
1819 freq.stream = a->encode;
1820 freq.print = a->print;
1821 freq.referenceId = referenceId;
1823 (*a->init->bend_fetch)(a->backend, &freq);
1824 /* backend should be able to signal whether error is system-wide
1825 or only pertaining to current record */
1828 if (!freq.surrogate_flag)
1831 *pres = Z_PRES_FAILURE;
1832 /* for 'present request out of range',
1833 set addinfo to record position if not set */
1834 if (freq.errcode == 13 && freq.errstring == 0)
1836 sprintf (s, "%d", recno);
1839 return diagrec(a, freq.errcode, freq.errstring);
1841 reclist->records[reclist->num_records] =
1842 surrogatediagrec(a, freq.basename, freq.errcode,
1844 reclist->num_records++;
1845 *next = freq.last_in_set ? 0 : recno + 1;
1849 this_length = freq.len;
1851 this_length = odr_total(a->encode) - total_length;
1852 yaz_log(LOG_DEBUG, " fetched record, len=%d, total=%d",
1853 this_length, total_length);
1854 if (this_length + total_length > a->preferredMessageSize)
1856 /* record is small enough, really */
1857 if (this_length <= a->preferredMessageSize)
1859 yaz_log(LOG_DEBUG, " Dropped last normal-sized record");
1860 *pres = Z_PRES_PARTIAL_2;
1863 /* record can only be fetched by itself */
1864 if (this_length < a->maximumRecordSize)
1866 yaz_log(LOG_DEBUG, " Record > prefmsgsz");
1869 yaz_log(LOG_DEBUG, " Dropped it");
1870 reclist->records[reclist->num_records] =
1871 surrogatediagrec(a, freq.basename, 16, 0);
1872 reclist->num_records++;
1873 *next = freq.last_in_set ? 0 : recno + 1;
1874 dumped_records += this_length;
1878 else /* too big entirely */
1880 yaz_log(LOG_LOG, "Record > maxrcdsz this=%d max=%d", this_length, a->maximumRecordSize);
1881 reclist->records[reclist->num_records] =
1882 surrogatediagrec(a, freq.basename, 17, 0);
1883 reclist->num_records++;
1884 *next = freq.last_in_set ? 0 : recno + 1;
1885 dumped_records += this_length;
1890 if (!(thisrec = (Z_NamePlusRecord *)
1891 odr_malloc(a->encode, sizeof(*thisrec))))
1893 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1894 strlen(freq.basename) + 1)))
1896 strcpy(thisrec->databaseName, freq.basename);
1897 thisrec->which = Z_NamePlusRecord_databaseRecord;
1899 if (freq.output_format_raw)
1901 struct oident *ident = oid_getentbyoid(freq.output_format_raw);
1902 freq.output_format = ident->value;
1904 thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
1905 freq.record, freq.len);
1906 if (!thisrec->u.databaseRecord)
1908 reclist->records[reclist->num_records] = thisrec;
1909 reclist->num_records++;
1910 *next = freq.last_in_set ? 0 : recno + 1;
1912 *num = reclist->num_records;
1916 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1919 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1920 bend_search_rr *bsrr =
1921 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1923 yaz_log(LOG_LOG, "Got SearchRequest.");
1925 bsrr->request = reqb;
1926 bsrr->association = assoc;
1927 bsrr->referenceId = req->referenceId;
1928 save_referenceId (reqb, bsrr->referenceId);
1930 yaz_log (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1931 if (req->databaseNames)
1934 for (i = 0; i < req->num_databaseNames; i++)
1935 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1937 yaz_log_zquery(req->query);
1939 if (assoc->init->bend_search)
1941 bsrr->setname = req->resultSetName;
1942 bsrr->replace_set = *req->replaceIndicator;
1943 bsrr->num_bases = req->num_databaseNames;
1944 bsrr->basenames = req->databaseNames;
1945 bsrr->query = req->query;
1946 bsrr->stream = assoc->encode;
1947 bsrr->decode = assoc->decode;
1948 bsrr->print = assoc->print;
1951 bsrr->errstring = NULL;
1952 bsrr->search_info = NULL;
1953 (assoc->init->bend_search)(assoc->backend, bsrr);
1957 return response_searchRequest(assoc, reqb, bsrr, fd);
1960 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1963 * Prepare a searchresponse based on the backend results. We probably want
1964 * to look at making the fetching of records nonblocking as well, but
1965 * so far, we'll keep things simple.
1966 * If bsrt is null, that means we're called in response to a communications
1967 * event, and we'll have to get the response for ourselves.
1969 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1970 bend_search_rr *bsrt, int *fd)
1972 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1973 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1974 Z_SearchResponse *resp = (Z_SearchResponse *)
1975 odr_malloc (assoc->encode, sizeof(*resp));
1976 int *nulint = odr_intdup (assoc->encode, 0);
1977 bool_t *sr = odr_intdup(assoc->encode, 1);
1978 int *next = odr_intdup(assoc->encode, 0);
1979 int *none = odr_intdup(assoc->encode, Z_RES_NONE);
1981 apdu->which = Z_APDU_searchResponse;
1982 apdu->u.searchResponse = resp;
1983 resp->referenceId = req->referenceId;
1984 resp->additionalSearchInfo = 0;
1985 resp->otherInfo = 0;
1987 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1989 yaz_log(LOG_FATAL, "Bad result from backend");
1992 else if (bsrt->errcode)
1994 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1995 resp->resultCount = nulint;
1996 resp->numberOfRecordsReturned = nulint;
1997 resp->nextResultSetPosition = nulint;
1998 resp->searchStatus = nulint;
1999 resp->resultSetStatus = none;
2000 resp->presentStatus = 0;
2004 int *toget = odr_intdup(assoc->encode, 0);
2005 int *presst = odr_intdup(assoc->encode, 0);
2006 Z_RecordComposition comp, *compp = 0;
2008 yaz_log (LOG_LOG, "resultCount: %d", bsrt->hits);
2011 resp->resultCount = &bsrt->hits;
2013 comp.which = Z_RecordComp_simple;
2014 /* how many records does the user agent want, then? */
2015 if (bsrt->hits <= *req->smallSetUpperBound)
2017 *toget = bsrt->hits;
2018 if ((comp.u.simple = req->smallSetElementSetNames))
2021 else if (bsrt->hits < *req->largeSetLowerBound)
2023 *toget = *req->mediumSetPresentNumber;
2024 if (*toget > bsrt->hits)
2025 *toget = bsrt->hits;
2026 if ((comp.u.simple = req->mediumSetElementSetNames))
2032 if (*toget && !resp->records)
2037 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
2040 form = prefformat->value;
2041 resp->records = pack_records(assoc, req->resultSetName, 1,
2042 toget, compp, next, presst, form, req->referenceId,
2043 req->preferredRecordSyntax);
2046 resp->numberOfRecordsReturned = toget;
2047 resp->nextResultSetPosition = next;
2048 resp->searchStatus = sr;
2049 resp->resultSetStatus = 0;
2050 resp->presentStatus = presst;
2054 if (*resp->resultCount)
2056 resp->numberOfRecordsReturned = nulint;
2057 resp->nextResultSetPosition = next;
2058 resp->searchStatus = sr;
2059 resp->resultSetStatus = 0;
2060 resp->presentStatus = 0;
2063 resp->additionalSearchInfo = bsrt->search_info;
2068 * Maybe we got a little over-friendly when we designed bend_fetch to
2069 * get only one record at a time. Some backends can optimise multiple-record
2070 * fetches, and at any rate, there is some overhead involved in
2071 * all that selecting and hopping around. Problem is, of course, that the
2072 * frontend can't know ahead of time how many records it'll need to
2073 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
2074 * is downright lousy as a bulk data transfer protocol.
2076 * To start with, we'll do the fetching of records from the backend
2077 * in one operation: To save some trips in and out of the event-handler,
2078 * and to simplify the interface to pack_records. At any rate, asynch
2079 * operation is more fun in operations that have an unpredictable execution
2080 * speed - which is normally more true for search than for present.
2082 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
2085 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
2089 Z_PresentResponse *resp;
2093 yaz_log(LOG_LOG, "Got PresentRequest.");
2095 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
2098 form = prefformat->value;
2099 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
2101 resp->presentStatus = odr_intdup(assoc->encode, 0);
2102 if (assoc->init->bend_present)
2104 bend_present_rr *bprr = (bend_present_rr *)
2105 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2106 bprr->setname = req->resultSetId;
2107 bprr->start = *req->resultSetStartPoint;
2108 bprr->number = *req->numberOfRecordsRequested;
2109 bprr->format = form;
2110 bprr->comp = req->recordComposition;
2111 bprr->referenceId = req->referenceId;
2112 bprr->stream = assoc->encode;
2113 bprr->print = assoc->print;
2114 bprr->request = reqb;
2115 bprr->association = assoc;
2117 bprr->errstring = NULL;
2118 (*assoc->init->bend_present)(assoc->backend, bprr);
2124 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2125 *resp->presentStatus = Z_PRES_FAILURE;
2128 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2129 next = odr_intdup(assoc->encode, 0);
2130 num = odr_intdup(assoc->encode, 0);
2132 apdu->which = Z_APDU_presentResponse;
2133 apdu->u.presentResponse = resp;
2134 resp->referenceId = req->referenceId;
2135 resp->otherInfo = 0;
2139 *num = *req->numberOfRecordsRequested;
2141 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
2142 num, req->recordComposition, next, resp->presentStatus,
2143 form, req->referenceId, req->preferredRecordSyntax);
2147 resp->numberOfRecordsReturned = num;
2148 resp->nextResultSetPosition = next;
2154 * Scan was implemented rather in a hurry, and with support for only the basic
2155 * elements of the service in the backend API. Suggestions are welcome.
2157 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
2159 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
2160 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2161 Z_ScanResponse *res = (Z_ScanResponse *)
2162 odr_malloc (assoc->encode, sizeof(*res));
2163 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2164 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2165 Z_ListEntries *ents = (Z_ListEntries *)
2166 odr_malloc (assoc->encode, sizeof(*ents));
2167 Z_DiagRecs *diagrecs_p = NULL;
2169 bend_scan_rr *bsrr = (bend_scan_rr *)
2170 odr_malloc (assoc->encode, sizeof(*bsrr));
2171 struct scan_entry *save_entries;
2173 yaz_log(LOG_LOG, "Got ScanRequest");
2175 apdu->which = Z_APDU_scanResponse;
2176 apdu->u.scanResponse = res;
2177 res->referenceId = req->referenceId;
2179 /* if step is absent, set it to 0 */
2180 res->stepSize = odr_intdup(assoc->encode, 0);
2182 *res->stepSize = *req->stepSize;
2184 res->scanStatus = scanStatus;
2185 res->numberOfEntriesReturned = numberOfEntriesReturned;
2186 res->positionOfTerm = 0;
2187 res->entries = ents;
2188 ents->num_entries = 0;
2189 ents->entries = NULL;
2190 ents->num_nonsurrogateDiagnostics = 0;
2191 ents->nonsurrogateDiagnostics = NULL;
2192 res->attributeSet = 0;
2195 if (req->databaseNames)
2198 for (i = 0; i < req->num_databaseNames; i++)
2199 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
2201 bsrr->num_bases = req->num_databaseNames;
2202 bsrr->basenames = req->databaseNames;
2203 bsrr->num_entries = *req->numberOfTermsRequested;
2204 bsrr->term = req->termListAndStartPoint;
2205 bsrr->referenceId = req->referenceId;
2206 bsrr->stream = assoc->encode;
2207 bsrr->print = assoc->print;
2208 bsrr->step_size = res->stepSize;
2210 /* Note that version 2.0 of YAZ and older did not set entries ..
2211 We do now. And when we do it's easier to extend the scan entry
2212 We know that if the scan handler did set entries, it will
2213 not know of new member display_term.
2215 if (bsrr->num_entries > 0)
2218 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
2220 for (i = 0; i<bsrr->num_entries; i++)
2222 bsrr->entries[i].term = 0;
2223 bsrr->entries[i].occurrences = 0;
2224 bsrr->entries[i].errcode = 0;
2225 bsrr->entries[i].errstring = 0;
2226 bsrr->entries[i].display_term = 0;
2229 save_entries = bsrr->entries; /* save it so we can compare later */
2231 if (req->attributeSet &&
2232 (attset = oid_getentbyoid(req->attributeSet)) &&
2233 (attset->oclass == CLASS_ATTSET || attset->oclass == CLASS_GENERAL))
2234 bsrr->attributeset = attset->value;
2236 bsrr->attributeset = VAL_NONE;
2237 log_scan_term (req->termListAndStartPoint, bsrr->attributeset);
2238 bsrr->term_position = req->preferredPositionInResponse ?
2239 *req->preferredPositionInResponse : 1;
2240 ((int (*)(void *, bend_scan_rr *))
2241 (*assoc->init->bend_scan))(assoc->backend, bsrr);
2243 diagrecs_p = diagrecs(assoc, bsrr->errcode, bsrr->errstring);
2247 Z_Entry **tab = (Z_Entry **)
2248 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
2250 if (bsrr->status == BEND_SCAN_PARTIAL)
2251 *scanStatus = Z_Scan_partial_5;
2253 *scanStatus = Z_Scan_success;
2254 ents->entries = tab;
2255 ents->num_entries = bsrr->num_entries;
2256 res->numberOfEntriesReturned = &ents->num_entries;
2257 res->positionOfTerm = &bsrr->term_position;
2258 for (i = 0; i < bsrr->num_entries; i++)
2264 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
2265 if (bsrr->entries[i].occurrences >= 0)
2267 e->which = Z_Entry_termInfo;
2268 e->u.termInfo = t = (Z_TermInfo *)
2269 odr_malloc(assoc->encode, sizeof(*t));
2270 t->suggestedAttributes = 0;
2272 if (save_entries == bsrr->entries &&
2273 bsrr->entries[i].display_term)
2275 /* the entries was NOT set by the handler. So it's
2276 safe to test for new member display_term. It is
2279 t->displayTerm = odr_strdup(assoc->encode,
2280 bsrr->entries[i].display_term);
2282 t->alternativeTerm = 0;
2283 t->byAttributes = 0;
2284 t->otherTermInfo = 0;
2285 t->globalOccurrences = &bsrr->entries[i].occurrences;
2286 t->term = (Z_Term *)
2287 odr_malloc(assoc->encode, sizeof(*t->term));
2288 t->term->which = Z_Term_general;
2289 t->term->u.general = o =
2290 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
2291 o->buf = (unsigned char *)
2292 odr_malloc(assoc->encode, o->len = o->size =
2293 strlen(bsrr->entries[i].term));
2294 memcpy(o->buf, bsrr->entries[i].term, o->len);
2295 yaz_log(LOG_DEBUG, " term #%d: '%s' (%d)", i,
2296 bsrr->entries[i].term, bsrr->entries[i].occurrences);
2300 Z_DiagRecs *drecs = diagrecs (assoc,
2301 bsrr->entries[i].errcode,
2302 bsrr->entries[i].errstring);
2303 assert (drecs->num_diagRecs == 1);
2304 e->which = Z_Entry_surrogateDiagnostic;
2305 assert (drecs->diagRecs[0]);
2306 e->u.surrogateDiagnostic = drecs->diagRecs[0];
2312 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
2313 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
2318 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
2321 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
2322 Z_SortResponse *res = (Z_SortResponse *)
2323 odr_malloc (assoc->encode, sizeof(*res));
2324 bend_sort_rr *bsrr = (bend_sort_rr *)
2325 odr_malloc (assoc->encode, sizeof(*bsrr));
2327 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2329 yaz_log(LOG_LOG, "Got SortRequest.");
2331 bsrr->num_input_setnames = req->num_inputResultSetNames;
2332 bsrr->input_setnames = req->inputResultSetNames;
2333 bsrr->referenceId = req->referenceId;
2334 bsrr->output_setname = req->sortedResultSetName;
2335 bsrr->sort_sequence = req->sortSequence;
2336 bsrr->stream = assoc->encode;
2337 bsrr->print = assoc->print;
2339 bsrr->sort_status = Z_SortStatus_failure;
2341 bsrr->errstring = 0;
2343 (*assoc->init->bend_sort)(assoc->backend, bsrr);
2345 res->referenceId = bsrr->referenceId;
2346 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
2347 res->resultSetStatus = 0;
2350 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
2351 res->diagnostics = dr->diagRecs;
2352 res->num_diagnostics = dr->num_diagRecs;
2356 res->num_diagnostics = 0;
2357 res->diagnostics = 0;
2359 res->resultCount = 0;
2362 apdu->which = Z_APDU_sortResponse;
2363 apdu->u.sortResponse = res;
2367 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
2370 Z_DeleteResultSetRequest *req =
2371 reqb->apdu_request->u.deleteResultSetRequest;
2372 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
2373 odr_malloc (assoc->encode, sizeof(*res));
2374 bend_delete_rr *bdrr = (bend_delete_rr *)
2375 odr_malloc (assoc->encode, sizeof(*bdrr));
2376 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2378 yaz_log(LOG_LOG, "Got DeleteRequest.");
2380 bdrr->num_setnames = req->num_resultSetList;
2381 bdrr->setnames = req->resultSetList;
2382 bdrr->stream = assoc->encode;
2383 bdrr->print = assoc->print;
2384 bdrr->function = *req->deleteFunction;
2385 bdrr->referenceId = req->referenceId;
2387 if (bdrr->num_setnames > 0)
2390 bdrr->statuses = (int*)
2391 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
2392 bdrr->num_setnames);
2393 for (i = 0; i < bdrr->num_setnames; i++)
2394 bdrr->statuses[i] = 0;
2396 (*assoc->init->bend_delete)(assoc->backend, bdrr);
2398 res->referenceId = req->referenceId;
2400 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
2402 res->deleteListStatuses = 0;
2403 if (bdrr->num_setnames > 0)
2406 res->deleteListStatuses = (Z_ListStatuses *)
2407 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
2408 res->deleteListStatuses->num = bdrr->num_setnames;
2409 res->deleteListStatuses->elements =
2411 odr_malloc (assoc->encode,
2412 sizeof(*res->deleteListStatuses->elements) *
2413 bdrr->num_setnames);
2414 for (i = 0; i<bdrr->num_setnames; i++)
2416 res->deleteListStatuses->elements[i] =
2418 odr_malloc (assoc->encode,
2419 sizeof(**res->deleteListStatuses->elements));
2420 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
2421 res->deleteListStatuses->elements[i]->id =
2422 odr_strdup (assoc->encode, bdrr->setnames[i]);
2426 res->numberNotDeleted = 0;
2427 res->bulkStatuses = 0;
2428 res->deleteMessage = 0;
2431 apdu->which = Z_APDU_deleteResultSetResponse;
2432 apdu->u.deleteResultSetResponse = res;
2436 static void process_close(association *assoc, request *reqb)
2438 Z_Close *req = reqb->apdu_request->u.close;
2439 static char *reasons[] =
2446 "securityViolation",
2453 yaz_log(LOG_LOG, "Got Close, reason %s, message %s",
2454 reasons[*req->closeReason], req->diagnosticInformation ?
2455 req->diagnosticInformation : "NULL");
2456 if (assoc->version < 3) /* to make do_force respond with close */
2458 do_close_req(assoc, Z_Close_finished,
2459 "Association terminated by client", reqb);
2462 void save_referenceId (request *reqb, Z_ReferenceId *refid)
2466 reqb->len_refid = refid->len;
2467 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
2468 memcpy (reqb->refid, refid->buf, refid->len);
2472 reqb->len_refid = 0;
2477 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
2479 process_z_response (a, req, res);
2482 bend_request bend_request_mk (bend_association a)
2484 request *nreq = request_get (&a->outgoing);
2485 nreq->request_mem = nmem_create ();
2489 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
2494 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
2495 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
2496 id->len = id->size = req->len_refid;
2497 memcpy (id->buf, req->refid, req->len_refid);
2501 void bend_request_destroy (bend_request *req)
2503 nmem_destroy((*req)->request_mem);
2504 request_release(*req);
2508 int bend_backend_respond (bend_association a, bend_request req)
2512 r = process_z_request (a, req, &msg);
2514 yaz_log (LOG_WARN, "%s", msg);
2518 void bend_request_setdata(bend_request r, void *p)
2523 void *bend_request_getdata(bend_request r)
2525 return r->clientData;
2528 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
2530 bend_segment_rr req;
2532 req.segment = reqb->apdu_request->u.segmentRequest;
2533 req.stream = assoc->encode;
2534 req.decode = assoc->decode;
2535 req.print = assoc->print;
2536 req.association = assoc;
2538 (*assoc->init->bend_segment)(assoc->backend, &req);
2543 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
2545 bend_esrequest_rr esrequest;
2547 Z_ExtendedServicesRequest *req =
2548 reqb->apdu_request->u.extendedServicesRequest;
2549 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
2551 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
2553 yaz_log(LOG_DEBUG,"inside Process esRequest");
2555 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
2556 esrequest.stream = assoc->encode;
2557 esrequest.decode = assoc->decode;
2558 esrequest.print = assoc->print;
2559 esrequest.errcode = 0;
2560 esrequest.errstring = NULL;
2561 esrequest.request = reqb;
2562 esrequest.association = assoc;
2563 esrequest.taskPackage = 0;
2564 esrequest.referenceId = req->referenceId;
2566 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
2568 /* If the response is being delayed, return NULL */
2569 if (esrequest.request == NULL)
2572 resp->referenceId = req->referenceId;
2574 if (esrequest.errcode == -1)
2576 /* Backend service indicates request will be processed */
2577 yaz_log(LOG_DEBUG,"Request could be processed...Accepted !");
2578 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
2580 else if (esrequest.errcode == 0)
2582 /* Backend service indicates request will be processed */
2583 yaz_log(LOG_DEBUG,"Request could be processed...Done !");
2584 *resp->operationStatus = Z_ExtendedServicesResponse_done;
2588 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
2589 esrequest.errstring);
2591 /* Backend indicates error, request will not be processed */
2592 yaz_log(LOG_DEBUG,"Request could not be processed...failure !");
2593 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
2594 resp->num_diagnostics = diagRecs->num_diagRecs;
2595 resp->diagnostics = diagRecs->diagRecs;
2597 /* Do something with the members of bend_extendedservice */
2598 if (esrequest.taskPackage)
2599 resp->taskPackage = z_ext_record (assoc->encode, VAL_EXTENDED,
2600 (const char *) esrequest.taskPackage,
2602 yaz_log(LOG_DEBUG,"Send the result apdu");