2 * Copyright (c) 1995-2003, Index Data
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.150 2003-03-20 21:15:00 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_APDU *process_searchRequest(association *assoc, request *reqb,
71 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
72 bend_search_rr *bsrr, int *fd);
73 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
75 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
76 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
77 static void process_close(association *assoc, request *reqb);
78 void save_referenceId (request *reqb, Z_ReferenceId *refid);
79 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
81 static Z_APDU *process_segmentRequest (association *assoc, request *reqb);
83 static FILE *apduf = 0; /* for use in static mode */
84 static statserv_options_block *control_block = 0;
86 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
89 * Create and initialize a new association-handle.
90 * channel : iochannel for the current line.
91 * link : communications channel.
92 * Returns: 0 or a new association handle.
94 association *create_association(IOCHAN channel, COMSTACK link)
99 control_block = statserv_getcontrol();
100 if (!(anew = (association *)xmalloc(sizeof(*anew))))
104 anew->client_chan = channel;
105 anew->client_link = link;
106 anew->cs_get_mask = 0;
107 anew->cs_put_mask = 0;
108 anew->cs_accept_mask = 0;
109 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
110 !(anew->encode = odr_createmem(ODR_ENCODE)))
112 if (*control_block->apdufile)
117 strcpy(filename, control_block->apdufile);
118 if (!(anew->print = odr_createmem(ODR_PRINT)))
120 if (*control_block->apdufile == '@')
122 odr_setprint(anew->print, yaz_log_file());
124 else if (*control_block->apdufile != '-')
126 strcpy(filename, control_block->apdufile);
127 if (!control_block->dynamic)
131 if (!(apduf = fopen(filename, "w")))
133 yaz_log(LOG_WARN|LOG_ERRNO, "%s", filename);
136 setvbuf(apduf, 0, _IONBF, 0);
142 sprintf(filename + strlen(filename), ".%d", getpid());
143 if (!(f = fopen(filename, "w")))
145 yaz_log(LOG_WARN|LOG_ERRNO, "%s", filename);
148 setvbuf(f, 0, _IONBF, 0);
150 odr_setprint(anew->print, f);
155 anew->input_buffer = 0;
156 anew->input_buffer_len = 0;
158 anew->state = ASSOC_NEW;
159 request_initq(&anew->incoming);
160 request_initq(&anew->outgoing);
161 anew->proto = cs_getproto(link);
166 * Free association and release resources.
168 void destroy_association(association *h)
170 statserv_options_block *cb = statserv_getcontrol();
173 odr_destroy(h->decode);
174 odr_destroy(h->encode);
176 odr_destroy(h->print);
178 xfree(h->input_buffer);
180 (*cb->bend_close)(h->backend);
181 while (request_deq(&h->incoming));
182 while (request_deq(&h->outgoing));
183 request_delq(&h->incoming);
184 request_delq(&h->outgoing);
186 xmalloc_trav("session closed");
187 if (control_block && control_block->one_shot)
193 static void do_close_req(association *a, int reason, char *message,
197 Z_Close *cls = zget_Close(a->encode);
199 /* Purge request queue */
200 while (request_deq(&a->incoming));
201 while (request_deq(&a->outgoing));
204 yaz_log(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
205 reason, message ? message : "none");
206 apdu.which = Z_APDU_close;
208 *cls->closeReason = reason;
209 cls->diagnosticInformation = message;
210 process_z_response(a, req, &apdu);
211 iochan_settimeout(a->client_chan, 20);
215 yaz_log(LOG_DEBUG, "v2 client. No Close PDU");
216 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
218 a->state = ASSOC_DEAD;
221 static void do_close(association *a, int reason, char *message)
223 do_close_req (a, reason, message, request_get(&a->outgoing));
227 * This is where PDUs from the client are read and the further
228 * processing is initiated. Flow of control moves down through the
229 * various process_* functions below, until the encoded result comes back up
230 * to the output handler in here.
232 * h : the I/O channel that has an outstanding event.
233 * event : the current outstanding event.
235 void ir_session(IOCHAN h, int event)
238 association *assoc = (association *)iochan_getdata(h);
239 COMSTACK conn = assoc->client_link;
242 assert(h && conn && assoc);
243 if (event == EVENT_TIMEOUT)
245 if (assoc->state != ASSOC_UP)
247 yaz_log(LOG_LOG, "Final timeout - closing connection.");
249 destroy_association(assoc);
254 yaz_log(LOG_LOG, "Session idle too long. Sending close.");
255 do_close(assoc, Z_Close_lackOfActivity, 0);
259 if (event & assoc->cs_accept_mask)
261 yaz_log (LOG_DEBUG, "ir_session (accept)");
262 if (!cs_accept (conn))
264 yaz_log (LOG_LOG, "accept failed");
265 destroy_association(assoc);
268 iochan_clearflag (h, EVENT_OUTPUT|EVENT_OUTPUT);
269 if (conn->io_pending)
270 { /* cs_accept didn't complete */
271 assoc->cs_accept_mask =
272 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
273 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
275 iochan_setflag (h, assoc->cs_accept_mask);
278 { /* cs_accept completed. Prepare for reading (cs_get) */
279 assoc->cs_accept_mask = 0;
280 assoc->cs_get_mask = EVENT_INPUT;
281 iochan_setflag (h, assoc->cs_get_mask);
285 if ((event & assoc->cs_get_mask) || (event & EVENT_WORK)) /* input */
287 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
289 yaz_log(LOG_DEBUG, "ir_session (input)");
290 /* We aren't speaking to this fellow */
291 if (assoc->state == ASSOC_DEAD)
293 yaz_log(LOG_LOG, "Connection closed - end of session");
295 destroy_association(assoc);
299 assoc->cs_get_mask = EVENT_INPUT;
300 if ((res = cs_get(conn, &assoc->input_buffer,
301 &assoc->input_buffer_len)) <= 0)
303 yaz_log(LOG_LOG, "Connection closed by client");
305 destroy_association(assoc);
309 else if (res == 1) /* incomplete read - wait for more */
311 if (conn->io_pending & CS_WANT_WRITE)
312 assoc->cs_get_mask |= EVENT_OUTPUT;
313 iochan_setflag(h, assoc->cs_get_mask);
316 if (cs_more(conn)) /* more stuff - call us again later, please */
317 iochan_setevent(h, EVENT_INPUT);
319 /* we got a complete PDU. Let's decode it */
320 yaz_log(LOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
321 assoc->input_buffer[0] & 0xff,
322 assoc->input_buffer[1] & 0xff,
323 assoc->input_buffer[2] & 0xff);
324 req = request_get(&assoc->incoming); /* get a new request */
325 odr_reset(assoc->decode);
326 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
327 if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
329 yaz_log(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
330 odr_errmsg(odr_geterror(assoc->decode)),
331 odr_offset(assoc->decode));
332 if (assoc->decode->error != OHTTP)
334 yaz_log(LOG_LOG, "PDU dump:");
335 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
336 do_close(assoc, Z_Close_protocolError, "Malformed package");
340 Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
341 assoc->state = ASSOC_DEAD;
342 process_gdu_response(assoc, req, p);
346 req->request_mem = odr_extract_mem(assoc->decode);
347 if (assoc->print && !z_GDU(assoc->print, &req->gdu_request, 0, 0))
349 yaz_log(LOG_WARN, "ODR print error: %s",
350 odr_errmsg(odr_geterror(assoc->print)));
351 odr_reset(assoc->print);
353 request_enq(&assoc->incoming, req);
356 /* can we do something yet? */
357 req = request_head(&assoc->incoming);
358 if (req->state == REQUEST_IDLE)
360 request_deq(&assoc->incoming);
361 process_gdu_request(assoc, req);
364 if (event & assoc->cs_put_mask)
366 request *req = request_head(&assoc->outgoing);
368 assoc->cs_put_mask = 0;
369 yaz_log(LOG_DEBUG, "ir_session (output)");
370 req->state = REQUEST_PENDING;
371 switch (res = cs_put(conn, req->response, req->len_response))
374 yaz_log(LOG_LOG, "Connection closed by client");
376 destroy_association(assoc);
379 case 0: /* all sent - release the request structure */
380 yaz_log(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
382 yaz_log(LOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
385 nmem_destroy(req->request_mem);
386 request_deq(&assoc->outgoing);
387 request_release(req);
388 if (!request_head(&assoc->outgoing))
389 { /* restore mask for cs_get operation ... */
390 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
391 iochan_setflag(h, assoc->cs_get_mask);
392 if (assoc->state == ASSOC_DEAD)
393 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
397 assoc->cs_put_mask = EVENT_OUTPUT;
401 if (conn->io_pending & CS_WANT_WRITE)
402 assoc->cs_put_mask |= EVENT_OUTPUT;
403 if (conn->io_pending & CS_WANT_READ)
404 assoc->cs_put_mask |= EVENT_INPUT;
405 iochan_setflag(h, assoc->cs_put_mask);
408 if (event & EVENT_EXCEPT)
410 yaz_log(LOG_LOG, "ir_session (exception)");
412 destroy_association(assoc);
417 static int process_z_request(association *assoc, request *req, char **msg);
419 static void assoc_init_reset(association *assoc)
422 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
424 assoc->init->stream = assoc->encode;
425 assoc->init->print = assoc->print;
426 assoc->init->auth = 0;
427 assoc->init->referenceId = 0;
428 assoc->init->implementation_version = 0;
429 assoc->init->implementation_id = 0;
430 assoc->init->implementation_name = 0;
431 assoc->init->bend_sort = NULL;
432 assoc->init->bend_search = NULL;
433 assoc->init->bend_present = NULL;
434 assoc->init->bend_esrequest = NULL;
435 assoc->init->bend_delete = NULL;
436 assoc->init->bend_scan = NULL;
437 assoc->init->bend_segment = NULL;
438 assoc->init->bend_fetch = NULL;
439 assoc->init->charneg_request = NULL;
440 assoc->init->charneg_response = NULL;
441 assoc->init->decode = assoc->decode;
442 assoc->init->peer_name =
443 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
446 static int srw_bend_init(association *assoc)
448 const char *encoding = "UTF-8";
450 bend_initresult *binitres;
451 statserv_options_block *cb = statserv_getcontrol();
453 assoc_init_reset(assoc);
455 assoc->maximumRecordSize = 3000000;
456 assoc->preferredMessageSize = 3000000;
458 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
459 assoc->init->charneg_request = ce->u.charNeg3;
461 if (!(binitres = (*cb->bend_init)(assoc->init)))
463 yaz_log(LOG_WARN, "Bad response from backend.");
466 assoc->backend = binitres->handle;
470 static int srw_bend_fetch(association *assoc, int pos,
471 Z_SRW_searchRetrieveRequest *srw_req,
472 Z_SRW_record *record)
475 ODR o = assoc->encode;
477 rr.setname = "default";
480 rr.request_format = VAL_TEXT_XML;
481 rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
484 rr.comp = (Z_RecordComposition *)
485 odr_malloc(assoc->decode, sizeof(*rr.comp));
486 rr.comp->which = Z_RecordComp_complex;
487 rr.comp->u.complex = (Z_CompSpec *)
488 odr_malloc(assoc->decode, sizeof(Z_CompSpec));
489 rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
490 odr_malloc(assoc->encode, sizeof(bool_t));
491 *rr.comp->u.complex->selectAlternativeSyntax = 0;
492 rr.comp->u.complex->num_dbSpecific = 0;
493 rr.comp->u.complex->dbSpecific = 0;
494 rr.comp->u.complex->num_recordSyntax = 0;
495 rr.comp->u.complex->recordSyntax = 0;
497 rr.comp->u.complex->generic = (Z_Specification *)
498 odr_malloc(assoc->decode, sizeof(Z_Specification));
499 rr.comp->u.complex->generic->which = Z_Schema_uri;
500 rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
501 rr.comp->u.complex->generic->elementSpec = 0;
503 rr.stream = assoc->encode;
504 rr.print = assoc->print;
510 rr.output_format = VAL_TEXT_XML;
511 rr.output_format_raw = 0;
514 rr.surrogate_flag = 0;
516 if (!assoc->init->bend_fetch)
519 (*assoc->init->bend_fetch)(assoc->backend, &rr);
523 record->recordData_buf = rr.record;
524 record->recordData_len = rr.len;
525 record->recordPosition = odr_intdup(o, pos);
526 record->recordSchema = 0;
527 if (srw_req->recordSchema)
528 record->recordSchema = odr_strdup(o, srw_req->recordSchema);
533 static void srw_bend_search(association *assoc, request *req,
534 Z_SRW_searchRetrieveRequest *srw_req,
535 Z_SRW_searchRetrieveResponse *srw_res)
541 yaz_log(LOG_LOG, "Got SRW SearchRetrieveRequest");
542 yaz_log(LOG_DEBUG, "srw_bend_search");
545 yaz_log(LOG_DEBUG, "srw_bend_init");
546 if (!srw_bend_init(assoc))
548 srw_error = 3; /* assume Authentication error */
550 srw_res->num_diagnostics = 1;
551 srw_res->diagnostics = (Z_SRW_diagnostic *)
552 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
553 srw_res->diagnostics[0].code =
554 odr_intdup(assoc->encode, srw_error);
555 srw_res->diagnostics[0].details = 0;
560 rr.setname = "default";
563 rr.basenames = &srw_req->database;
566 rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
568 if (srw_req->query_type == Z_SRW_query_type_cql)
570 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
571 ext->direct_reference = odr_getoidbystr(assoc->decode,
572 "1.2.840.10003.16.2");
573 ext->indirect_reference = 0;
575 ext->which = Z_External_CQL;
576 ext->u.cql = srw_req->query.cql;
578 rr.query->which = Z_Query_type_104;
579 rr.query->u.type_104 = ext;
581 else if (srw_req->query_type == Z_SRW_query_type_pqf)
583 Z_RPNQuery *RPNquery;
584 YAZ_PQF_Parser pqf_parser;
586 pqf_parser = yaz_pqf_create ();
588 RPNquery = yaz_pqf_parse (pqf_parser, assoc->decode,
594 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
595 yaz_log(LOG_LOG, "%*s^\n", off+4, "");
596 yaz_log(LOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
601 rr.query->which = Z_Query_type_1;
602 rr.query->u.type_1 = RPNquery;
604 yaz_pqf_destroy (pqf_parser);
609 if (!srw_error && srw_req->sort_type != Z_SRW_sort_type_none)
612 if (!srw_error && !assoc->init->bend_search)
617 yaz_log(LOG_DEBUG, "srw_bend_search returned SRW error %d", srw_error);
618 srw_res->num_diagnostics = 1;
619 srw_res->diagnostics = (Z_SRW_diagnostic *)
620 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
621 srw_res->diagnostics[0].code =
622 odr_intdup(assoc->encode, srw_error);
623 srw_res->diagnostics[0].details = 0;
627 rr.stream = assoc->encode;
628 rr.decode = assoc->decode;
629 rr.print = assoc->print;
631 rr.association = assoc;
637 yaz_log_zquery(rr.query);
638 (assoc->init->bend_search)(assoc->backend, &rr);
639 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
642 yaz_log(LOG_DEBUG, "bend_search returned Bib-1 code %d", rr.errcode);
643 srw_res->num_diagnostics = 1;
644 srw_res->diagnostics = (Z_SRW_diagnostic *)
645 odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
646 srw_res->diagnostics[0].code =
647 odr_intdup(assoc->encode,
648 yaz_diag_bib1_to_srw (rr.errcode));
649 srw_res->diagnostics[0].details = rr.errstring;
650 yaz_log(LOG_DEBUG, "srw_bend_search returned SRW error %d",
651 srw_res->diagnostics[0].code);
656 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
657 if (srw_req->maximumRecords && *srw_req->maximumRecords > 0)
659 int number = *srw_req->maximumRecords;
663 if (srw_req->startRecord)
664 start = *srw_req->startRecord;
666 yaz_log(LOG_DEBUG, "srw_bend_search. start=%d max=%d",
667 start, *srw_req->maximumRecords);
669 if (start <= rr.hits)
672 int packing = Z_SRW_recordPacking_string;
673 if (start + number > rr.hits)
674 number = rr.hits - start + 1;
675 if (srw_req->recordPacking &&
676 !strcmp(srw_req->recordPacking, "xml"))
677 packing = Z_SRW_recordPacking_XML;
678 srw_res->records = (Z_SRW_record *)
679 odr_malloc(assoc->encode,
680 number * sizeof(*srw_res->records));
681 for (i = 0; i<number; i++)
685 srw_res->records[j].recordPacking = packing;
686 srw_res->records[j].recordData_buf = 0;
687 yaz_log(LOG_DEBUG, "srw_bend_fetch %d", i+start);
688 errcode = srw_bend_fetch(assoc, i+start, srw_req,
689 srw_res->records + j);
692 srw_res->num_diagnostics = 1;
693 srw_res->diagnostics = (Z_SRW_diagnostic *)
694 odr_malloc(assoc->encode,
695 sizeof(*srw_res->diagnostics));
696 srw_res->diagnostics[0].code =
697 odr_intdup(assoc->encode,
698 yaz_diag_bib1_to_srw (errcode));
699 srw_res->diagnostics[0].details = rr.errstring;
702 if (srw_res->records[j].recordData_buf)
705 srw_res->num_records = j;
707 srw_res->records = 0;
713 static int hex_digit (int ch)
715 if (ch >= '0' && ch <= '9')
717 else if (ch >= 'a' && ch <= 'f')
719 else if (ch >= 'A' && ch <= 'F')
724 static char *uri_val(const char *path, const char *name, ODR o)
726 size_t nlen = strlen(name);
730 while (path && *path)
732 const char *p1 = strchr(path, '=');
735 if (p1 - path == nlen && !memcmp(path, name, nlen))
741 p1 = strchr(path, '&');
743 p1 = strlen(path) + path;
744 ret = odr_malloc(o, p1 - path + 1);
745 while (*path && *path != '&')
752 else if (*path == '%' && path[1] && path[2])
754 ret[i++] = hex_digit (path[1])*16 + hex_digit (path[2]);
763 path = strchr(p1, '&');
770 void uri_val_int(const char *path, const char *name, ODR o, int **intp)
772 const char *v = uri_val(path, name, o);
774 *intp = odr_intdup(o, atoi(v));
777 static void process_http_request(association *assoc, request *req)
779 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
780 ODR o = assoc->encode;
782 Z_HTTP_Response *hres = 0;
785 if (!strcmp(hreq->method, "GET"))
789 Z_SOAP *soap_package = 0;
790 char *db = "Default";
791 const char *p0 = hreq->path, *p1;
792 static Z_SOAP_Handler soap_handlers[2] = {
794 {"http://www.loc.gov/zing/srw/v1.0/", 0,
795 (Z_SOAP_fun) yaz_srw_codec},
802 p1 = strchr(p0, '?');
804 p1 = p0 + strlen(p0);
807 db = odr_malloc(assoc->decode, p1 - p0 + 1);
808 memcpy (db, p0, p1 - p0);
812 if (p1 && *p1 == '?' && p1[1])
814 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
815 Z_SRW_PDU *sr = yaz_srw_get(o, Z_SRW_searchRetrieve_request);
816 char *query = uri_val(p1, "query", o);
817 char *pQuery = uri_val(p1, "pQuery", o);
818 char *sortKeys = uri_val(p1, "sortKeys", o);
822 sr->u.request->query_type = Z_SRW_query_type_cql;
823 sr->u.request->query.cql = query;
827 sr->u.request->query_type = Z_SRW_query_type_pqf;
828 sr->u.request->query.pqf = pQuery;
832 sr->u.request->sort_type = Z_SRW_sort_type_sort;
833 sr->u.request->sort.sortKeys = sortKeys;
835 sr->u.request->recordSchema = uri_val(p1, "recordSchema", o);
836 sr->u.request->recordPacking = uri_val(p1, "recordPacking", o);
837 uri_val_int(p1, "maximumRecords", o,
838 &sr->u.request->maximumRecords);
839 uri_val_int(p1, "startRecord", o,
840 &sr->u.request->startRecord);
841 if (sr->u.request->startRecord)
842 yaz_log(LOG_LOG, "startRecord=%d", *sr->u.request->startRecord);
843 sr->u.request->database = db;
844 srw_bend_search(assoc, req, sr->u.request,
847 soap_package = odr_malloc(o, sizeof(*soap_package));
848 soap_package->which = Z_SOAP_generic;
850 soap_package->u.generic =
851 odr_malloc(o, sizeof(*soap_package->u.generic));
853 soap_package->u.generic->p = res;
854 soap_package->u.generic->ns = soap_handlers[0].ns;
855 soap_package->u.generic->no = 0;
857 soap_package->ns = "SRU";
859 p = z_get_HTTP_Response(o, 200);
860 hres = p->u.HTTP_Response;
862 ret = z_soap_codec_enc(assoc->encode, &soap_package,
863 &hres->content_buf, &hres->content_len,
864 soap_handlers, charset);
866 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
870 strcpy(ctype, "text/xml; charset=");
871 strcat(ctype, charset);
872 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
877 if (strlen(hreq->path) >= 5 && strlen(hreq->path) < 80 &&
878 !memcmp(hreq->path, "/doc/", 5))
883 strcpy(fpath, DOCDIR);
884 strcat(fpath, hreq->path+4);
885 f = fopen(fpath, "rb");
888 if (fstat(fileno(f), &sbuf) || !S_ISREG(sbuf.st_mode))
897 fseek(f, 0L, SEEK_END);
899 if (sz >= 0 && sz < 500000)
901 const char *ctype = "application/octet-stream";
904 p = z_get_HTTP_Response(o, 200);
905 hres = p->u.HTTP_Response;
906 hres->content_buf = (char *) odr_malloc(o, sz + 1);
907 hres->content_len = sz;
908 fseek(f, 0L, SEEK_SET);
909 fread(hres->content_buf, 1, sz, f);
910 if ((cp = strrchr(fpath, '.'))) {
912 if (!strcmp(cp, "png"))
914 else if (!strcmp(cp, "gif"))
916 else if (!strcmp(cp, "xml"))
918 else if (!strcmp(cp, "html"))
921 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
927 if (!strcmp(hreq->path, "/"))
932 const char *doclink = "";
933 p = z_get_HTTP_Response(o, 200);
934 hres = p->u.HTTP_Response;
935 hres->content_buf = (char *) odr_malloc(o, 400);
937 if (stat(DOCDIR "/yaz.html", &sbuf) == 0 && S_ISREG(sbuf.st_mode))
938 doclink = "<P><A HREF=\"/doc/yaz.html\">Documentation</A></P>";
940 sprintf (hres->content_buf,
941 "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
944 " <TITLE>YAZ " YAZ_VERSION "</TITLE>\n"
947 " <P><A HREF=\"http://www.indexdata.dk/yaz/\">YAZ</A> "
951 "</HTML>\n", doclink);
952 hres->content_len = strlen(hres->content_buf);
953 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/html");
957 p = z_get_HTTP_Response(o, 404);
960 else if (!strcmp(hreq->method, "POST"))
962 const char *content_type = z_HTTP_header_lookup(hreq->headers,
964 const char *soap_action = z_HTTP_header_lookup(hreq->headers,
966 if (content_type && soap_action &&
967 !yaz_strcmp_del("text/xml", content_type, "; "))
969 Z_SOAP *soap_package = 0;
972 const char *charset_p = 0;
975 static Z_SOAP_Handler soap_handlers[2] = {
977 {"http://www.loc.gov/zing/srw/v1.0/", 0,
978 (Z_SOAP_fun) yaz_srw_codec},
982 if ((charset_p = strstr(content_type, "; charset=")))
986 while (i < 20 && charset_p[i] &&
987 !strchr("; \n\r", charset_p[i]))
989 charset = odr_malloc(assoc->encode, i+1);
990 memcpy(charset, charset_p, i);
992 yaz_log(LOG_LOG, "SOAP encoding %s", charset);
994 ret = z_soap_codec(assoc->decode, &soap_package,
995 &hreq->content_buf, &hreq->content_len,
999 if (!ret && soap_package->which == Z_SOAP_generic &&
1000 soap_package->u.generic->no == 0)
1003 Z_SRW_PDU *sr = soap_package->u.generic->p;
1005 if (sr->which == Z_SRW_searchRetrieve_request)
1008 yaz_srw_get(assoc->encode,
1009 Z_SRW_searchRetrieve_response);
1011 if (!sr->u.request->database)
1013 const char *p0 = hreq->path, *p1;
1016 p1 = strchr(p0, '?');
1018 p1 = p0 + strlen(p0);
1021 sr->u.request->database =
1022 odr_malloc(assoc->decode, p1 - p0 + 1);
1023 memcpy (sr->u.request->database, p0, p1 - p0);
1024 sr->u.request->database[p1 - p0] = '\0';
1027 sr->u.request->database = "Default";
1029 srw_bend_search(assoc, req, sr->u.request,
1032 soap_package->u.generic->p = res;
1037 p = z_get_HTTP_Response(o, 200);
1038 hres = p->u.HTTP_Response;
1039 ret = z_soap_codec_enc(assoc->encode, &soap_package,
1040 &hres->content_buf, &hres->content_len,
1041 soap_handlers, charset);
1042 hres->code = http_code;
1044 z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
1048 strcpy(ctype, "text/xml; charset=");
1049 strcat(ctype, charset);
1050 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1053 if (!p) /* still no response ? */
1054 p = z_get_HTTP_Response(o, 500);
1058 p = z_get_HTTP_Response(o, 405);
1059 hres = p->u.HTTP_Response;
1061 z_HTTP_header_add(o, &hres->headers, "Allow", "GET, POST");
1063 hres = p->u.HTTP_Response;
1064 if (!strcmp(hreq->version, "1.0"))
1066 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1067 if (v && !strcmp(v, "Keep-Alive"))
1071 hres->version = "1.0";
1075 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1076 if (v && !strcmp(v, "close"))
1080 hres->version = "1.1";
1084 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1085 assoc->state = ASSOC_DEAD;
1090 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1092 if (alive && isdigit(*alive))
1096 if (t < 0 || t > 3600)
1098 iochan_settimeout(assoc->client_chan,t);
1099 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1101 process_gdu_response(assoc, req, p);
1104 static void process_gdu_request(association *assoc, request *req)
1106 if (req->gdu_request->which == Z_GDU_Z3950)
1109 req->apdu_request = req->gdu_request->u.z3950;
1110 if (process_z_request(assoc, req, &msg) < 0)
1111 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1113 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1114 process_http_request(assoc, req);
1117 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1122 * Initiate request processing.
1124 static int process_z_request(association *assoc, request *req, char **msg)
1130 *msg = "Unknown Error";
1131 assert(req && req->state == REQUEST_IDLE);
1132 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1134 *msg = "Missing InitRequest";
1137 switch (req->apdu_request->which)
1139 case Z_APDU_initRequest:
1140 iochan_settimeout(assoc->client_chan,
1141 statserv_getcontrol()->idle_timeout * 60);
1142 res = process_initRequest(assoc, req); break;
1143 case Z_APDU_searchRequest:
1144 res = process_searchRequest(assoc, req, &fd); break;
1145 case Z_APDU_presentRequest:
1146 res = process_presentRequest(assoc, req, &fd); break;
1147 case Z_APDU_scanRequest:
1148 if (assoc->init->bend_scan)
1149 res = process_scanRequest(assoc, req, &fd);
1152 *msg = "Cannot handle Scan APDU";
1156 case Z_APDU_extendedServicesRequest:
1157 if (assoc->init->bend_esrequest)
1158 res = process_ESRequest(assoc, req, &fd);
1161 *msg = "Cannot handle Extended Services APDU";
1165 case Z_APDU_sortRequest:
1166 if (assoc->init->bend_sort)
1167 res = process_sortRequest(assoc, req, &fd);
1170 *msg = "Cannot handle Sort APDU";
1175 process_close(assoc, req);
1177 case Z_APDU_deleteResultSetRequest:
1178 if (assoc->init->bend_delete)
1179 res = process_deleteRequest(assoc, req, &fd);
1182 *msg = "Cannot handle Delete APDU";
1186 case Z_APDU_segmentRequest:
1187 if (assoc->init->bend_segment)
1189 res = process_segmentRequest (assoc, req);
1193 *msg = "Cannot handle Segment APDU";
1198 *msg = "Bad APDU received";
1203 yaz_log(LOG_DEBUG, " result immediately available");
1204 retval = process_z_response(assoc, req, res);
1208 yaz_log(LOG_DEBUG, " result unavailble");
1211 else /* no result yet - one will be provided later */
1215 /* Set up an I/O handler for the fd supplied by the backend */
1217 yaz_log(LOG_DEBUG, " establishing handler for result");
1218 req->state = REQUEST_PENDING;
1219 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
1221 iochan_setdata(chan, assoc);
1228 * Handle message from the backend.
1230 void backend_response(IOCHAN i, int event)
1232 association *assoc = (association *)iochan_getdata(i);
1233 request *req = request_head(&assoc->incoming);
1237 yaz_log(LOG_DEBUG, "backend_response");
1238 assert(assoc && req && req->state != REQUEST_IDLE);
1239 /* determine what it is we're waiting for */
1240 switch (req->apdu_request->which)
1242 case Z_APDU_searchRequest:
1243 res = response_searchRequest(assoc, req, 0, &fd); break;
1245 case Z_APDU_presentRequest:
1246 res = response_presentRequest(assoc, req, 0, &fd); break;
1247 case Z_APDU_scanRequest:
1248 res = response_scanRequest(assoc, req, 0, &fd); break;
1251 yaz_log(LOG_WARN, "Serious programmer's lapse or bug");
1254 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
1256 yaz_log(LOG_LOG, "Fatal error when talking to backend");
1257 do_close(assoc, Z_Close_systemProblem, 0);
1261 else if (!res) /* no result yet - try again later */
1263 yaz_log(LOG_DEBUG, " no result yet");
1264 iochan_setfd(i, fd); /* in case fd has changed */
1269 * Encode response, and transfer the request structure to the outgoing queue.
1271 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
1273 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
1275 if (assoc->print && !z_GDU(assoc->print, &res, 0, 0))
1277 yaz_log(LOG_WARN, "ODR print error: %s",
1278 odr_errmsg(odr_geterror(assoc->print)));
1279 odr_reset(assoc->print);
1281 if (!z_GDU(assoc->encode, &res, 0, 0))
1283 yaz_log(LOG_WARN, "ODR error when encoding response: %s",
1284 odr_errmsg(odr_geterror(assoc->decode)));
1287 req->response = odr_getbuf(assoc->encode, &req->len_response,
1288 &req->size_response);
1289 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
1290 odr_reset(assoc->encode);
1291 req->state = REQUEST_IDLE;
1292 request_enq(&assoc->outgoing, req);
1293 /* turn the work over to the ir_session handler */
1294 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
1295 assoc->cs_put_mask = EVENT_OUTPUT;
1296 /* Is there more work to be done? give that to the input handler too */
1298 if (request_head(&assoc->incoming))
1300 yaz_log (LOG_DEBUG, "more work to be done");
1301 iochan_setevent(assoc->client_chan, EVENT_WORK);
1308 * Encode response, and transfer the request structure to the outgoing queue.
1310 static int process_z_response(association *assoc, request *req, Z_APDU *res)
1312 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
1313 gres->which = Z_GDU_Z3950;
1314 gres->u.z3950 = res;
1316 return process_gdu_response(assoc, req, gres);
1321 * Handle init request.
1322 * At the moment, we don't check the options
1323 * anywhere else in the code - we just try not to do anything that would
1324 * break a naive client. We'll toss 'em into the association block when
1325 * we need them there.
1327 static Z_APDU *process_initRequest(association *assoc, request *reqb)
1329 statserv_options_block *cb = statserv_getcontrol();
1330 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
1331 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
1332 Z_InitResponse *resp = apdu->u.initResponse;
1333 bend_initresult *binitres;
1337 yaz_log(LOG_LOG, "Got initRequest");
1338 if (req->implementationId)
1339 yaz_log(LOG_LOG, "Id: %s", req->implementationId);
1340 if (req->implementationName)
1341 yaz_log(LOG_LOG, "Name: %s", req->implementationName);
1342 if (req->implementationVersion)
1343 yaz_log(LOG_LOG, "Version: %s", req->implementationVersion);
1345 assoc_init_reset(assoc);
1347 assoc->init->auth = req->idAuthentication;
1348 assoc->init->referenceId = req->referenceId;
1350 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
1352 Z_CharSetandLanguageNegotiation *negotiation =
1353 yaz_get_charneg_record (req->otherInfo);
1354 if (negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
1355 assoc->init->charneg_request = negotiation;
1358 if (!(binitres = (*cb->bend_init)(assoc->init)))
1360 yaz_log(LOG_WARN, "Bad response from backend.");
1364 assoc->backend = binitres->handle;
1365 if ((assoc->init->bend_sort))
1366 yaz_log (LOG_DEBUG, "Sort handler installed");
1367 if ((assoc->init->bend_search))
1368 yaz_log (LOG_DEBUG, "Search handler installed");
1369 if ((assoc->init->bend_present))
1370 yaz_log (LOG_DEBUG, "Present handler installed");
1371 if ((assoc->init->bend_esrequest))
1372 yaz_log (LOG_DEBUG, "ESRequest handler installed");
1373 if ((assoc->init->bend_delete))
1374 yaz_log (LOG_DEBUG, "Delete handler installed");
1375 if ((assoc->init->bend_scan))
1376 yaz_log (LOG_DEBUG, "Scan handler installed");
1377 if ((assoc->init->bend_segment))
1378 yaz_log (LOG_DEBUG, "Segment handler installed");
1380 resp->referenceId = req->referenceId;
1382 /* let's tell the client what we can do */
1383 if (ODR_MASK_GET(req->options, Z_Options_search))
1385 ODR_MASK_SET(resp->options, Z_Options_search);
1386 strcat(options, "srch");
1388 if (ODR_MASK_GET(req->options, Z_Options_present))
1390 ODR_MASK_SET(resp->options, Z_Options_present);
1391 strcat(options, " prst");
1393 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
1394 assoc->init->bend_delete)
1396 ODR_MASK_SET(resp->options, Z_Options_delSet);
1397 strcat(options, " del");
1399 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
1400 assoc->init->bend_esrequest)
1402 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
1403 strcat (options, " extendedServices");
1405 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
1407 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
1408 strcat(options, " namedresults");
1410 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
1412 ODR_MASK_SET(resp->options, Z_Options_scan);
1413 strcat(options, " scan");
1415 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
1417 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
1418 strcat(options, " concurrop");
1420 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
1422 ODR_MASK_SET(resp->options, Z_Options_sort);
1423 strcat(options, " sort");
1426 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)
1427 && assoc->init->charneg_response)
1429 Z_OtherInformation **p;
1430 Z_OtherInformationUnit *p0;
1432 yaz_oi_APDU(apdu, &p);
1434 if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
1435 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
1437 p0->which = Z_OtherInfo_externallyDefinedInfo;
1438 p0->information.externallyDefinedInfo =
1439 assoc->init->charneg_response;
1441 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
1442 strcat(options, " negotiation");
1445 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
1447 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
1448 assoc->version = 2; /* 1 & 2 are equivalent */
1450 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
1452 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
1455 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
1457 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
1461 yaz_log(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
1462 assoc->maximumRecordSize = *req->maximumRecordSize;
1463 if (assoc->maximumRecordSize > control_block->maxrecordsize)
1464 assoc->maximumRecordSize = control_block->maxrecordsize;
1465 assoc->preferredMessageSize = *req->preferredMessageSize;
1466 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
1467 assoc->preferredMessageSize = assoc->maximumRecordSize;
1469 resp->preferredMessageSize = &assoc->preferredMessageSize;
1470 resp->maximumRecordSize = &assoc->maximumRecordSize;
1472 resp->implementationName = "GFS/YAZ";
1474 if (assoc->init->implementation_id)
1477 odr_malloc (assoc->encode,
1478 strlen(assoc->init->implementation_id) + 10 +
1479 strlen(resp->implementationId));
1480 sprintf (nv, "%s / %s",
1481 resp->implementationId, assoc->init->implementation_id);
1482 resp->implementationId = nv;
1484 if (assoc->init->implementation_name)
1487 odr_malloc (assoc->encode,
1488 strlen(assoc->init->implementation_name) + 10 +
1489 strlen(resp->implementationName));
1490 sprintf (nv, "%s / %s",
1491 resp->implementationName, assoc->init->implementation_name);
1492 resp->implementationName = nv;
1494 if (assoc->init->implementation_version)
1497 odr_malloc (assoc->encode,
1498 strlen(assoc->init->implementation_version) + 10 +
1499 strlen(resp->implementationVersion));
1500 sprintf (nv, "YAZ %s / %s",
1501 resp->implementationVersion,
1502 assoc->init->implementation_version);
1503 resp->implementationVersion = nv;
1506 if (binitres->errcode)
1508 yaz_log(LOG_LOG, "Connection rejected by backend.");
1510 assoc->state = ASSOC_DEAD;
1513 assoc->state = ASSOC_UP;
1518 * These functions should be merged.
1521 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo, ODR odr)
1523 dr->which = Z_DefaultDiagFormat_v2Addinfo;
1524 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
1528 * nonsurrogate diagnostic record.
1530 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
1532 Z_Records *rec = (Z_Records *)
1533 odr_malloc (assoc->encode, sizeof(*rec));
1534 int *err = odr_intdup(assoc->encode, error);
1535 Z_DiagRec *drec = (Z_DiagRec *)
1536 odr_malloc (assoc->encode, sizeof(*drec));
1537 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
1538 odr_malloc (assoc->encode, sizeof(*dr));
1540 yaz_log(LOG_LOG, "[%d] %s %s%s", error, diagbib1_str(error),
1541 addinfo ? " -- " : "", addinfo ? addinfo : "");
1542 rec->which = Z_Records_NSD;
1543 rec->u.nonSurrogateDiagnostic = dr;
1544 dr->diagnosticSetId =
1545 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
1546 dr->condition = err;
1547 set_addinfo (dr, addinfo, assoc->encode);
1552 * surrogate diagnostic.
1554 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
1555 int error, char *addinfo)
1557 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
1558 odr_malloc (assoc->encode, sizeof(*rec));
1559 int *err = odr_intdup(assoc->encode, error);
1560 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1561 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
1562 odr_malloc (assoc->encode, sizeof(*dr));
1564 yaz_log(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
1565 rec->databaseName = dbname;
1566 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
1567 rec->u.surrogateDiagnostic = drec;
1568 drec->which = Z_DiagRec_defaultFormat;
1569 drec->u.defaultFormat = dr;
1570 dr->diagnosticSetId =
1571 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
1572 dr->condition = err;
1573 set_addinfo (dr, addinfo, assoc->encode);
1579 * multiple nonsurrogate diagnostics.
1581 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
1583 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
1584 int *err = odr_intdup(assoc->encode, error);
1585 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
1586 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1587 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)
1588 odr_malloc (assoc->encode, sizeof(*rec));
1590 yaz_log(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1592 recs->num_diagRecs = 1;
1593 recs->diagRecs = recp;
1595 drec->which = Z_DiagRec_defaultFormat;
1596 drec->u.defaultFormat = rec;
1598 rec->diagnosticSetId =
1599 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
1600 rec->condition = err;
1602 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1603 rec->u.v2Addinfo = odr_strdup (assoc->encode, addinfo ? addinfo : "");
1607 static Z_Records *pack_records(association *a, char *setname, int start,
1608 int *num, Z_RecordComposition *comp,
1609 int *next, int *pres, oid_value format,
1610 Z_ReferenceId *referenceId,
1613 int recno, total_length = 0, toget = *num, dumped_records = 0;
1614 Z_Records *records =
1615 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1616 Z_NamePlusRecordList *reclist =
1617 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1618 Z_NamePlusRecord **list =
1619 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1621 records->which = Z_Records_DBOSD;
1622 records->u.databaseOrSurDiagnostics = reclist;
1623 reclist->num_records = 0;
1624 reclist->records = list;
1625 *pres = Z_PRES_SUCCESS;
1629 yaz_log(LOG_LOG, "Request to pack %d+%d+%s", start, toget, setname);
1630 yaz_log(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1631 a->maximumRecordSize);
1632 for (recno = start; reclist->num_records < toget; recno++)
1635 Z_NamePlusRecord *thisrec;
1636 int this_length = 0;
1638 * we get the number of bytes allocated on the stream before any
1639 * allocation done by the backend - this should give us a reasonable
1640 * idea of the total size of the data so far.
1642 total_length = odr_total(a->encode) - dumped_records;
1648 freq.last_in_set = 0;
1649 freq.setname = setname;
1650 freq.surrogate_flag = 0;
1651 freq.number = recno;
1653 freq.request_format = format;
1654 freq.request_format_raw = oid;
1655 freq.output_format = format;
1656 freq.output_format_raw = 0;
1657 freq.stream = a->encode;
1658 freq.print = a->print;
1659 freq.surrogate_flag = 0;
1660 freq.referenceId = referenceId;
1661 (*a->init->bend_fetch)(a->backend, &freq);
1662 /* backend should be able to signal whether error is system-wide
1663 or only pertaining to current record */
1666 if (!freq.surrogate_flag)
1669 *pres = Z_PRES_FAILURE;
1670 /* for 'present request out of range',
1671 set addinfo to record position if not set */
1672 if (freq.errcode == 13 && freq.errstring == 0)
1674 sprintf (s, "%d", recno);
1677 return diagrec(a, freq.errcode, freq.errstring);
1679 reclist->records[reclist->num_records] =
1680 surrogatediagrec(a, freq.basename, freq.errcode,
1682 reclist->num_records++;
1683 *next = freq.last_in_set ? 0 : recno + 1;
1687 this_length = freq.len;
1689 this_length = odr_total(a->encode) - total_length;
1690 yaz_log(LOG_DEBUG, " fetched record, len=%d, total=%d",
1691 this_length, total_length);
1692 if (this_length + total_length > a->preferredMessageSize)
1694 /* record is small enough, really */
1695 if (this_length <= a->preferredMessageSize)
1697 yaz_log(LOG_DEBUG, " Dropped last normal-sized record");
1698 *pres = Z_PRES_PARTIAL_2;
1701 /* record can only be fetched by itself */
1702 if (this_length < a->maximumRecordSize)
1704 yaz_log(LOG_DEBUG, " Record > prefmsgsz");
1707 yaz_log(LOG_DEBUG, " Dropped it");
1708 reclist->records[reclist->num_records] =
1709 surrogatediagrec(a, freq.basename, 16, 0);
1710 reclist->num_records++;
1711 *next = freq.last_in_set ? 0 : recno + 1;
1712 dumped_records += this_length;
1716 else /* too big entirely */
1718 yaz_log(LOG_LOG, "Record > maxrcdsz this=%d max=%d", this_length, a->maximumRecordSize);
1719 reclist->records[reclist->num_records] =
1720 surrogatediagrec(a, freq.basename, 17, 0);
1721 reclist->num_records++;
1722 *next = freq.last_in_set ? 0 : recno + 1;
1723 dumped_records += this_length;
1728 if (!(thisrec = (Z_NamePlusRecord *)
1729 odr_malloc(a->encode, sizeof(*thisrec))))
1731 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1732 strlen(freq.basename) + 1)))
1734 strcpy(thisrec->databaseName, freq.basename);
1735 thisrec->which = Z_NamePlusRecord_databaseRecord;
1737 if (freq.output_format_raw)
1739 struct oident *ident = oid_getentbyoid(freq.output_format_raw);
1740 freq.output_format = ident->value;
1742 thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
1743 freq.record, freq.len);
1744 if (!thisrec->u.databaseRecord)
1746 reclist->records[reclist->num_records] = thisrec;
1747 reclist->num_records++;
1748 *next = freq.last_in_set ? 0 : recno + 1;
1750 *num = reclist->num_records;
1754 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1757 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1758 bend_search_rr *bsrr =
1759 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1761 yaz_log(LOG_LOG, "Got SearchRequest.");
1763 bsrr->request = reqb;
1764 bsrr->association = assoc;
1765 bsrr->referenceId = req->referenceId;
1766 save_referenceId (reqb, bsrr->referenceId);
1768 yaz_log (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1769 if (req->databaseNames)
1772 for (i = 0; i < req->num_databaseNames; i++)
1773 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1775 yaz_log_zquery(req->query);
1777 if (assoc->init->bend_search)
1779 bsrr->setname = req->resultSetName;
1780 bsrr->replace_set = *req->replaceIndicator;
1781 bsrr->num_bases = req->num_databaseNames;
1782 bsrr->basenames = req->databaseNames;
1783 bsrr->query = req->query;
1784 bsrr->stream = assoc->encode;
1785 bsrr->decode = assoc->decode;
1786 bsrr->print = assoc->print;
1789 bsrr->errstring = NULL;
1790 bsrr->search_info = NULL;
1791 (assoc->init->bend_search)(assoc->backend, bsrr);
1795 return response_searchRequest(assoc, reqb, bsrr, fd);
1798 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1801 * Prepare a searchresponse based on the backend results. We probably want
1802 * to look at making the fetching of records nonblocking as well, but
1803 * so far, we'll keep things simple.
1804 * If bsrt is null, that means we're called in response to a communications
1805 * event, and we'll have to get the response for ourselves.
1807 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1808 bend_search_rr *bsrt, int *fd)
1810 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1811 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1812 Z_SearchResponse *resp = (Z_SearchResponse *)
1813 odr_malloc (assoc->encode, sizeof(*resp));
1814 int *nulint = odr_intdup (assoc->encode, 0);
1815 bool_t *sr = odr_intdup(assoc->encode, 1);
1816 int *next = odr_intdup(assoc->encode, 0);
1817 int *none = odr_intdup(assoc->encode, Z_RES_NONE);
1819 apdu->which = Z_APDU_searchResponse;
1820 apdu->u.searchResponse = resp;
1821 resp->referenceId = req->referenceId;
1822 resp->additionalSearchInfo = 0;
1823 resp->otherInfo = 0;
1825 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1827 yaz_log(LOG_FATAL, "Bad result from backend");
1830 else if (bsrt->errcode)
1832 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1833 resp->resultCount = nulint;
1834 resp->numberOfRecordsReturned = nulint;
1835 resp->nextResultSetPosition = nulint;
1836 resp->searchStatus = nulint;
1837 resp->resultSetStatus = none;
1838 resp->presentStatus = 0;
1842 int *toget = odr_intdup(assoc->encode, 0);
1843 int *presst = odr_intdup(assoc->encode, 0);
1844 Z_RecordComposition comp, *compp = 0;
1846 yaz_log (LOG_LOG, "resultCount: %d", bsrt->hits);
1849 resp->resultCount = &bsrt->hits;
1851 comp.which = Z_RecordComp_simple;
1852 /* how many records does the user agent want, then? */
1853 if (bsrt->hits <= *req->smallSetUpperBound)
1855 *toget = bsrt->hits;
1856 if ((comp.u.simple = req->smallSetElementSetNames))
1859 else if (bsrt->hits < *req->largeSetLowerBound)
1861 *toget = *req->mediumSetPresentNumber;
1862 if (*toget > bsrt->hits)
1863 *toget = bsrt->hits;
1864 if ((comp.u.simple = req->mediumSetElementSetNames))
1870 if (*toget && !resp->records)
1875 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
1878 form = prefformat->value;
1879 resp->records = pack_records(assoc, req->resultSetName, 1,
1880 toget, compp, next, presst, form, req->referenceId,
1881 req->preferredRecordSyntax);
1884 resp->numberOfRecordsReturned = toget;
1885 resp->nextResultSetPosition = next;
1886 resp->searchStatus = sr;
1887 resp->resultSetStatus = 0;
1888 resp->presentStatus = presst;
1892 if (*resp->resultCount)
1894 resp->numberOfRecordsReturned = nulint;
1895 resp->nextResultSetPosition = next;
1896 resp->searchStatus = sr;
1897 resp->resultSetStatus = 0;
1898 resp->presentStatus = 0;
1901 resp->additionalSearchInfo = bsrt->search_info;
1906 * Maybe we got a little over-friendly when we designed bend_fetch to
1907 * get only one record at a time. Some backends can optimise multiple-record
1908 * fetches, and at any rate, there is some overhead involved in
1909 * all that selecting and hopping around. Problem is, of course, that the
1910 * frontend can't know ahead of time how many records it'll need to
1911 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1912 * is downright lousy as a bulk data transfer protocol.
1914 * To start with, we'll do the fetching of records from the backend
1915 * in one operation: To save some trips in and out of the event-handler,
1916 * and to simplify the interface to pack_records. At any rate, asynch
1917 * operation is more fun in operations that have an unpredictable execution
1918 * speed - which is normally more true for search than for present.
1920 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1923 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
1927 Z_PresentResponse *resp;
1931 yaz_log(LOG_LOG, "Got PresentRequest.");
1933 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
1936 form = prefformat->value;
1937 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1939 resp->presentStatus = odr_intdup(assoc->encode, 0);
1940 if (assoc->init->bend_present)
1942 bend_present_rr *bprr = (bend_present_rr *)
1943 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1944 bprr->setname = req->resultSetId;
1945 bprr->start = *req->resultSetStartPoint;
1946 bprr->number = *req->numberOfRecordsRequested;
1947 bprr->format = form;
1948 bprr->comp = req->recordComposition;
1949 bprr->referenceId = req->referenceId;
1950 bprr->stream = assoc->encode;
1951 bprr->print = assoc->print;
1952 bprr->request = reqb;
1953 bprr->association = assoc;
1955 bprr->errstring = NULL;
1956 (*assoc->init->bend_present)(assoc->backend, bprr);
1962 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
1963 *resp->presentStatus = Z_PRES_FAILURE;
1966 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1967 next = odr_intdup(assoc->encode, 0);
1968 num = odr_intdup(assoc->encode, 0);
1970 apdu->which = Z_APDU_presentResponse;
1971 apdu->u.presentResponse = resp;
1972 resp->referenceId = req->referenceId;
1973 resp->otherInfo = 0;
1977 *num = *req->numberOfRecordsRequested;
1979 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1980 num, req->recordComposition, next, resp->presentStatus,
1981 form, req->referenceId, req->preferredRecordSyntax);
1985 resp->numberOfRecordsReturned = num;
1986 resp->nextResultSetPosition = next;
1992 * Scan was implemented rather in a hurry, and with support for only the basic
1993 * elements of the service in the backend API. Suggestions are welcome.
1995 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1997 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
1998 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1999 Z_ScanResponse *res = (Z_ScanResponse *)
2000 odr_malloc (assoc->encode, sizeof(*res));
2001 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2002 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2003 Z_ListEntries *ents = (Z_ListEntries *)
2004 odr_malloc (assoc->encode, sizeof(*ents));
2005 Z_DiagRecs *diagrecs_p = NULL;
2007 bend_scan_rr *bsrr = (bend_scan_rr *)
2008 odr_malloc (assoc->encode, sizeof(*bsrr));
2010 yaz_log(LOG_LOG, "Got ScanRequest");
2012 apdu->which = Z_APDU_scanResponse;
2013 apdu->u.scanResponse = res;
2014 res->referenceId = req->referenceId;
2016 /* if step is absent, set it to 0 */
2017 res->stepSize = odr_intdup(assoc->encode, 0);
2019 *res->stepSize = *req->stepSize;
2021 res->scanStatus = scanStatus;
2022 res->numberOfEntriesReturned = numberOfEntriesReturned;
2023 res->positionOfTerm = 0;
2024 res->entries = ents;
2025 ents->num_entries = 0;
2026 ents->entries = NULL;
2027 ents->num_nonsurrogateDiagnostics = 0;
2028 ents->nonsurrogateDiagnostics = NULL;
2029 res->attributeSet = 0;
2032 if (req->databaseNames)
2035 for (i = 0; i < req->num_databaseNames; i++)
2036 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
2038 bsrr->num_bases = req->num_databaseNames;
2039 bsrr->basenames = req->databaseNames;
2040 bsrr->num_entries = *req->numberOfTermsRequested;
2041 bsrr->term = req->termListAndStartPoint;
2042 bsrr->referenceId = req->referenceId;
2043 bsrr->stream = assoc->encode;
2044 bsrr->print = assoc->print;
2045 bsrr->step_size = res->stepSize;
2046 if (req->attributeSet &&
2047 (attset = oid_getentbyoid(req->attributeSet)) &&
2048 (attset->oclass == CLASS_ATTSET || attset->oclass == CLASS_GENERAL))
2049 bsrr->attributeset = attset->value;
2051 bsrr->attributeset = VAL_NONE;
2052 log_scan_term (req->termListAndStartPoint, bsrr->attributeset);
2053 bsrr->term_position = req->preferredPositionInResponse ?
2054 *req->preferredPositionInResponse : 1;
2055 ((int (*)(void *, bend_scan_rr *))
2056 (*assoc->init->bend_scan))(assoc->backend, bsrr);
2058 diagrecs_p = diagrecs(assoc, bsrr->errcode, bsrr->errstring);
2062 Z_Entry **tab = (Z_Entry **)
2063 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
2065 if (bsrr->status == BEND_SCAN_PARTIAL)
2066 *scanStatus = Z_Scan_partial_5;
2068 *scanStatus = Z_Scan_success;
2069 ents->entries = tab;
2070 ents->num_entries = bsrr->num_entries;
2071 res->numberOfEntriesReturned = &ents->num_entries;
2072 res->positionOfTerm = &bsrr->term_position;
2073 for (i = 0; i < bsrr->num_entries; i++)
2079 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
2080 if (bsrr->entries[i].occurrences >= 0)
2082 e->which = Z_Entry_termInfo;
2083 e->u.termInfo = t = (Z_TermInfo *)
2084 odr_malloc(assoc->encode, sizeof(*t));
2085 t->suggestedAttributes = 0;
2087 t->alternativeTerm = 0;
2088 t->byAttributes = 0;
2089 t->otherTermInfo = 0;
2090 t->globalOccurrences = &bsrr->entries[i].occurrences;
2091 t->term = (Z_Term *)
2092 odr_malloc(assoc->encode, sizeof(*t->term));
2093 t->term->which = Z_Term_general;
2094 t->term->u.general = o =
2095 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
2096 o->buf = (unsigned char *)
2097 odr_malloc(assoc->encode, o->len = o->size =
2098 strlen(bsrr->entries[i].term));
2099 memcpy(o->buf, bsrr->entries[i].term, o->len);
2100 yaz_log(LOG_DEBUG, " term #%d: '%s' (%d)", i,
2101 bsrr->entries[i].term, bsrr->entries[i].occurrences);
2105 Z_DiagRecs *drecs = diagrecs (assoc,
2106 bsrr->entries[i].errcode,
2107 bsrr->entries[i].errstring);
2108 assert (drecs->num_diagRecs == 1);
2109 e->which = Z_Entry_surrogateDiagnostic;
2110 assert (drecs->diagRecs[0]);
2111 e->u.surrogateDiagnostic = drecs->diagRecs[0];
2117 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
2118 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
2123 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
2126 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
2127 Z_SortResponse *res = (Z_SortResponse *)
2128 odr_malloc (assoc->encode, sizeof(*res));
2129 bend_sort_rr *bsrr = (bend_sort_rr *)
2130 odr_malloc (assoc->encode, sizeof(*bsrr));
2132 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2134 yaz_log(LOG_LOG, "Got SortRequest.");
2136 bsrr->num_input_setnames = req->num_inputResultSetNames;
2137 bsrr->input_setnames = req->inputResultSetNames;
2138 bsrr->referenceId = req->referenceId;
2139 bsrr->output_setname = req->sortedResultSetName;
2140 bsrr->sort_sequence = req->sortSequence;
2141 bsrr->stream = assoc->encode;
2142 bsrr->print = assoc->print;
2144 bsrr->sort_status = Z_SortStatus_failure;
2146 bsrr->errstring = 0;
2148 (*assoc->init->bend_sort)(assoc->backend, bsrr);
2150 res->referenceId = bsrr->referenceId;
2151 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
2152 res->resultSetStatus = 0;
2155 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
2156 res->diagnostics = dr->diagRecs;
2157 res->num_diagnostics = dr->num_diagRecs;
2161 res->num_diagnostics = 0;
2162 res->diagnostics = 0;
2166 apdu->which = Z_APDU_sortResponse;
2167 apdu->u.sortResponse = res;
2171 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
2174 Z_DeleteResultSetRequest *req =
2175 reqb->apdu_request->u.deleteResultSetRequest;
2176 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
2177 odr_malloc (assoc->encode, sizeof(*res));
2178 bend_delete_rr *bdrr = (bend_delete_rr *)
2179 odr_malloc (assoc->encode, sizeof(*bdrr));
2180 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2182 yaz_log(LOG_LOG, "Got DeleteRequest.");
2184 bdrr->num_setnames = req->num_resultSetList;
2185 bdrr->setnames = req->resultSetList;
2186 bdrr->stream = assoc->encode;
2187 bdrr->print = assoc->print;
2188 bdrr->function = *req->deleteFunction;
2189 bdrr->referenceId = req->referenceId;
2191 if (bdrr->num_setnames > 0)
2194 bdrr->statuses = (int*)
2195 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
2196 bdrr->num_setnames);
2197 for (i = 0; i < bdrr->num_setnames; i++)
2198 bdrr->statuses[i] = 0;
2200 (*assoc->init->bend_delete)(assoc->backend, bdrr);
2202 res->referenceId = req->referenceId;
2204 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
2206 res->deleteListStatuses = 0;
2207 if (bdrr->num_setnames > 0)
2210 res->deleteListStatuses = (Z_ListStatuses *)
2211 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
2212 res->deleteListStatuses->num = bdrr->num_setnames;
2213 res->deleteListStatuses->elements =
2215 odr_malloc (assoc->encode,
2216 sizeof(*res->deleteListStatuses->elements) *
2217 bdrr->num_setnames);
2218 for (i = 0; i<bdrr->num_setnames; i++)
2220 res->deleteListStatuses->elements[i] =
2222 odr_malloc (assoc->encode,
2223 sizeof(**res->deleteListStatuses->elements));
2224 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
2225 res->deleteListStatuses->elements[i]->id =
2226 odr_strdup (assoc->encode, bdrr->setnames[i]);
2230 res->numberNotDeleted = 0;
2231 res->bulkStatuses = 0;
2232 res->deleteMessage = 0;
2235 apdu->which = Z_APDU_deleteResultSetResponse;
2236 apdu->u.deleteResultSetResponse = res;
2240 static void process_close(association *assoc, request *reqb)
2242 Z_Close *req = reqb->apdu_request->u.close;
2243 static char *reasons[] =
2250 "securityViolation",
2257 yaz_log(LOG_LOG, "Got Close, reason %s, message %s",
2258 reasons[*req->closeReason], req->diagnosticInformation ?
2259 req->diagnosticInformation : "NULL");
2260 if (assoc->version < 3) /* to make do_force respond with close */
2262 do_close_req(assoc, Z_Close_finished,
2263 "Association terminated by client", reqb);
2266 void save_referenceId (request *reqb, Z_ReferenceId *refid)
2270 reqb->len_refid = refid->len;
2271 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
2272 memcpy (reqb->refid, refid->buf, refid->len);
2276 reqb->len_refid = 0;
2281 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
2283 process_z_response (a, req, res);
2286 bend_request bend_request_mk (bend_association a)
2288 request *nreq = request_get (&a->outgoing);
2289 nreq->request_mem = nmem_create ();
2293 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
2298 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
2299 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
2300 id->len = id->size = req->len_refid;
2301 memcpy (id->buf, req->refid, req->len_refid);
2305 void bend_request_destroy (bend_request *req)
2307 nmem_destroy((*req)->request_mem);
2308 request_release(*req);
2312 int bend_backend_respond (bend_association a, bend_request req)
2316 r = process_z_request (a, req, &msg);
2318 yaz_log (LOG_WARN, "%s", msg);
2322 void bend_request_setdata(bend_request r, void *p)
2327 void *bend_request_getdata(bend_request r)
2329 return r->clientData;
2332 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
2334 bend_segment_rr req;
2336 req.segment = reqb->apdu_request->u.segmentRequest;
2337 req.stream = assoc->encode;
2338 req.decode = assoc->decode;
2339 req.print = assoc->print;
2340 req.association = assoc;
2342 (*assoc->init->bend_segment)(assoc->backend, &req);
2347 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
2349 bend_esrequest_rr esrequest;
2351 Z_ExtendedServicesRequest *req =
2352 reqb->apdu_request->u.extendedServicesRequest;
2353 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
2355 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
2357 yaz_log(LOG_DEBUG,"inside Process esRequest");
2359 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
2360 esrequest.stream = assoc->encode;
2361 esrequest.decode = assoc->decode;
2362 esrequest.print = assoc->print;
2363 esrequest.errcode = 0;
2364 esrequest.errstring = NULL;
2365 esrequest.request = reqb;
2366 esrequest.association = assoc;
2367 esrequest.taskPackage = 0;
2368 esrequest.referenceId = req->referenceId;
2370 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
2372 /* If the response is being delayed, return NULL */
2373 if (esrequest.request == NULL)
2376 resp->referenceId = req->referenceId;
2378 if (esrequest.errcode == -1)
2380 /* Backend service indicates request will be processed */
2381 yaz_log(LOG_DEBUG,"Request could be processed...Accepted !");
2382 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
2384 else if (esrequest.errcode == 0)
2386 /* Backend service indicates request will be processed */
2387 yaz_log(LOG_DEBUG,"Request could be processed...Done !");
2388 *resp->operationStatus = Z_ExtendedServicesResponse_done;
2392 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
2393 esrequest.errstring);
2395 /* Backend indicates error, request will not be processed */
2396 yaz_log(LOG_DEBUG,"Request could not be processed...failure !");
2397 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
2398 resp->num_diagnostics = diagRecs->num_diagRecs;
2399 resp->diagnostics = diagRecs->diagRecs;
2401 /* Do something with the members of bend_extendedservice */
2402 if (esrequest.taskPackage)
2403 resp->taskPackage = z_ext_record (assoc->encode, VAL_EXTENDED,
2404 (const char *) esrequest.taskPackage,
2406 yaz_log(LOG_DEBUG,"Send the result apdu");