1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2008 Index Data
3 * See the file LICENSE for details.
7 * \brief Implements GFS session logic.
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.
35 #include <sys/types.h>
43 #define S_ISREG(x) (x & _S_IFREG)
52 #include <libxml/parser.h>
53 #include <libxml/tree.h>
56 #include <yaz/yconfig.h>
57 #include <yaz/xmalloc.h>
58 #include <yaz/comstack.h>
62 #include <yaz/proto.h>
63 #include <yaz/oid_db.h>
65 #include <yaz/logrpn.h>
66 #include <yaz/querytowrbuf.h>
67 #include <yaz/statserv.h>
68 #include <yaz/diagbib1.h>
69 #include <yaz/charneg.h>
70 #include <yaz/otherinfo.h>
71 #include <yaz/yaz-util.h>
72 #include <yaz/pquery.h>
73 #include <yaz/oid_db.h>
76 #include <yaz/backend.h>
77 #include <yaz/yaz-ccl.h>
79 static void process_gdu_request(association *assoc, request *req);
80 static int process_z_request(association *assoc, request *req, char **msg);
81 void backend_response(IOCHAN i, int event);
82 static int process_gdu_response(association *assoc, request *req, Z_GDU *res);
83 static int process_z_response(association *assoc, request *req, Z_APDU *res);
84 static Z_APDU *process_initRequest(association *assoc, request *reqb);
85 static Z_External *init_diagnostics(ODR odr, int errcode,
86 const char *errstring);
87 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
89 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
90 bend_search_rr *bsrr, int *fd);
91 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
93 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
94 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
95 static void process_close(association *assoc, request *reqb);
96 void save_referenceId (request *reqb, Z_ReferenceId *refid);
97 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
99 static Z_APDU *process_segmentRequest (association *assoc, request *reqb);
101 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
103 /* dynamic logging levels */
104 static int logbits_set = 0;
105 static int log_session = 0; /* one-line logs for session */
106 static int log_sessiondetail = 0; /* more detailed stuff */
107 static int log_request = 0; /* one-line logs for requests */
108 static int log_requestdetail = 0; /* more detailed stuff */
110 /** get_logbits sets global loglevel bits */
111 static void get_logbits(void)
112 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
116 log_session = yaz_log_module_level("session");
117 log_sessiondetail = yaz_log_module_level("sessiondetail");
118 log_request = yaz_log_module_level("request");
119 log_requestdetail = yaz_log_module_level("requestdetail");
125 static void wr_diag(WRBUF w, int error, const char *addinfo)
127 wrbuf_printf(w, "ERROR %d+", error);
128 wrbuf_puts_replace_char(w, diagbib1_str(error), ' ', '_');
131 wrbuf_puts_replace_char(w, addinfo, ' ', '_');
139 * Create and initialize a new association-handle.
140 * channel : iochannel for the current line.
141 * link : communications channel.
142 * Returns: 0 or a new association handle.
144 association *create_association(IOCHAN channel, COMSTACK link,
145 const char *apdufile)
151 if (!(anew = (association *)xmalloc(sizeof(*anew))))
155 anew->last_control = 0;
156 anew->client_chan = channel;
157 anew->client_link = link;
158 anew->cs_get_mask = 0;
159 anew->cs_put_mask = 0;
160 anew->cs_accept_mask = 0;
161 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
162 !(anew->encode = odr_createmem(ODR_ENCODE)))
164 if (apdufile && *apdufile)
168 if (!(anew->print = odr_createmem(ODR_PRINT)))
170 if (*apdufile == '@')
172 odr_setprint(anew->print, yaz_log_file());
174 else if (*apdufile != '-')
177 sprintf(filename, "%.200s.%ld", apdufile, (long)getpid());
178 if (!(f = fopen(filename, "w")))
180 yaz_log(YLOG_WARN|YLOG_ERRNO, "%s", filename);
183 setvbuf(f, 0, _IONBF, 0);
184 odr_setprint(anew->print, f);
189 anew->input_buffer = 0;
190 anew->input_buffer_len = 0;
192 anew->state = ASSOC_NEW;
193 request_initq(&anew->incoming);
194 request_initq(&anew->outgoing);
195 anew->proto = cs_getproto(link);
201 * Free association and release resources.
203 void destroy_association(association *h)
205 statserv_options_block *cb = statserv_getcontrol();
209 odr_destroy(h->decode);
210 odr_destroy(h->encode);
212 odr_destroy(h->print);
214 xfree(h->input_buffer);
216 (*cb->bend_close)(h->backend);
217 while ((req = request_deq(&h->incoming)))
218 request_release(req);
219 while ((req = request_deq(&h->outgoing)))
220 request_release(req);
221 request_delq(&h->incoming);
222 request_delq(&h->outgoing);
224 xmalloc_trav("session closed");
225 if (cb && cb->one_shot)
231 static void do_close_req(association *a, int reason, char *message,
235 Z_Close *cls = zget_Close(a->encode);
237 /* Purge request queue */
238 while (request_deq(&a->incoming));
239 while (request_deq(&a->outgoing));
242 yaz_log(log_requestdetail, "Sending Close PDU, reason=%d, message=%s",
243 reason, message ? message : "none");
244 apdu.which = Z_APDU_close;
246 *cls->closeReason = reason;
247 cls->diagnosticInformation = message;
248 process_z_response(a, req, &apdu);
249 iochan_settimeout(a->client_chan, 20);
253 request_release(req);
254 yaz_log(log_requestdetail, "v2 client. No Close PDU");
255 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
258 a->state = ASSOC_DEAD;
261 static void do_close(association *a, int reason, char *message)
263 request *req = request_get(&a->outgoing);
264 do_close_req (a, reason, message, req);
268 int ir_read(IOCHAN h, int event)
270 association *assoc = (association *)iochan_getdata(h);
271 COMSTACK conn = assoc->client_link;
274 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
276 yaz_log(YLOG_DEBUG, "ir_session (input)");
277 /* We aren't speaking to this fellow */
278 if (assoc->state == ASSOC_DEAD)
280 yaz_log(log_sessiondetail, "Connection closed - end of session");
282 destroy_association(assoc);
286 assoc->cs_get_mask = EVENT_INPUT;
290 int res = cs_get(conn, &assoc->input_buffer,
291 &assoc->input_buffer_len);
292 if (res < 0 && cs_errno(conn) == CSBUFSIZE)
294 yaz_log(log_session, "Connection error: %s res=%d",
295 cs_errmsg(cs_errno(conn)), res);
296 req = request_get(&assoc->incoming); /* get a new request */
297 do_close_req(assoc, Z_Close_protocolError,
298 "Incoming package too large", req);
303 yaz_log(log_session, "Connection closed by client");
304 assoc->state = ASSOC_DEAD;
307 else if (res == 1) /* incomplete read - wait for more */
309 if (conn->io_pending & CS_WANT_WRITE)
310 assoc->cs_get_mask |= EVENT_OUTPUT;
311 iochan_setflag(h, assoc->cs_get_mask);
314 /* we got a complete PDU. Let's decode it */
315 yaz_log(YLOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
316 assoc->input_buffer[0] & 0xff,
317 assoc->input_buffer[1] & 0xff,
318 assoc->input_buffer[2] & 0xff);
319 req = request_get(&assoc->incoming); /* get a new request */
320 odr_reset(assoc->decode);
321 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
322 if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
324 yaz_log(YLOG_WARN, "ODR error on incoming PDU: %s [element %s] "
326 odr_errmsg(odr_geterror(assoc->decode)),
327 odr_getelement(assoc->decode),
328 (long) odr_offset(assoc->decode));
329 if (assoc->decode->error != OHTTP)
331 yaz_log(YLOG_WARN, "PDU dump:");
332 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
333 request_release(req);
334 do_close(assoc, Z_Close_protocolError, "Malformed package");
338 Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
339 assoc->state = ASSOC_DEAD;
340 process_gdu_response(assoc, req, p);
344 req->request_mem = odr_extract_mem(assoc->decode);
347 if (!z_GDU(assoc->print, &req->gdu_request, 0, 0))
348 yaz_log(YLOG_WARN, "ODR print error: %s",
349 odr_errmsg(odr_geterror(assoc->print)));
350 odr_reset(assoc->print);
352 request_enq(&assoc->incoming, req);
354 while (cs_more(conn));
360 * This is where PDUs from the client are read and the further
361 * processing is initiated. Flow of control moves down through the
362 * various process_* functions below, until the encoded result comes back up
363 * to the output handler in here.
365 * h : the I/O channel that has an outstanding event.
366 * event : the current outstanding event.
368 void ir_session(IOCHAN h, int event)
371 association *assoc = (association *)iochan_getdata(h);
372 COMSTACK conn = assoc->client_link;
375 assert(h && conn && assoc);
376 if (event == EVENT_TIMEOUT)
378 if (assoc->state != ASSOC_UP)
380 yaz_log(YLOG_DEBUG, "Final timeout - closing connection.");
381 /* do we need to lod this at all */
383 destroy_association(assoc);
388 yaz_log(log_sessiondetail,
389 "Session idle too long. Sending close.");
390 do_close(assoc, Z_Close_lackOfActivity, 0);
394 if (event & assoc->cs_accept_mask)
396 if (!cs_accept (conn))
398 yaz_log (YLOG_WARN, "accept failed");
399 destroy_association(assoc);
402 iochan_clearflag (h, EVENT_OUTPUT);
403 if (conn->io_pending)
404 { /* cs_accept didn't complete */
405 assoc->cs_accept_mask =
406 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
407 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
409 iochan_setflag (h, assoc->cs_accept_mask);
412 { /* cs_accept completed. Prepare for reading (cs_get) */
413 assoc->cs_accept_mask = 0;
414 assoc->cs_get_mask = EVENT_INPUT;
415 iochan_setflag (h, assoc->cs_get_mask);
419 if (event & assoc->cs_get_mask) /* input */
421 if (!ir_read(h, event))
423 req = request_head(&assoc->incoming);
424 if (req->state == REQUEST_IDLE)
426 request_deq(&assoc->incoming);
427 process_gdu_request(assoc, req);
430 if (event & assoc->cs_put_mask)
432 request *req = request_head(&assoc->outgoing);
434 assoc->cs_put_mask = 0;
435 yaz_log(YLOG_DEBUG, "ir_session (output)");
436 req->state = REQUEST_PENDING;
437 switch (res = cs_put(conn, req->response, req->len_response))
440 yaz_log(log_sessiondetail, "Connection closed by client");
442 destroy_association(assoc);
445 case 0: /* all sent - release the request structure */
446 yaz_log(YLOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
448 yaz_log(YLOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
451 nmem_destroy(req->request_mem);
452 request_deq(&assoc->outgoing);
453 request_release(req);
454 if (!request_head(&assoc->outgoing))
455 { /* restore mask for cs_get operation ... */
456 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
457 iochan_setflag(h, assoc->cs_get_mask);
458 if (assoc->state == ASSOC_DEAD)
459 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
463 assoc->cs_put_mask = EVENT_OUTPUT;
467 if (conn->io_pending & CS_WANT_WRITE)
468 assoc->cs_put_mask |= EVENT_OUTPUT;
469 if (conn->io_pending & CS_WANT_READ)
470 assoc->cs_put_mask |= EVENT_INPUT;
471 iochan_setflag(h, assoc->cs_put_mask);
474 if (event & EVENT_EXCEPT)
476 yaz_log(YLOG_WARN, "ir_session (exception)");
478 destroy_association(assoc);
483 static int process_z_request(association *assoc, request *req, char **msg);
486 static void assoc_init_reset(association *assoc)
489 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
491 assoc->init->stream = assoc->encode;
492 assoc->init->print = assoc->print;
493 assoc->init->auth = 0;
494 assoc->init->referenceId = 0;
495 assoc->init->implementation_version = 0;
496 assoc->init->implementation_id = 0;
497 assoc->init->implementation_name = 0;
498 assoc->init->query_charset = 0;
499 assoc->init->records_in_same_charset = 0;
500 assoc->init->bend_sort = NULL;
501 assoc->init->bend_search = NULL;
502 assoc->init->bend_present = NULL;
503 assoc->init->bend_esrequest = NULL;
504 assoc->init->bend_delete = NULL;
505 assoc->init->bend_scan = NULL;
506 assoc->init->bend_segment = NULL;
507 assoc->init->bend_fetch = NULL;
508 assoc->init->bend_explain = NULL;
509 assoc->init->bend_srw_scan = NULL;
510 assoc->init->bend_srw_update = NULL;
512 assoc->init->charneg_request = NULL;
513 assoc->init->charneg_response = NULL;
515 assoc->init->decode = assoc->decode;
516 assoc->init->peer_name =
517 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
519 yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name);
522 static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num, Z_SRW_PDU *sr)
524 statserv_options_block *cb = statserv_getcontrol();
527 const char *encoding = "UTF-8";
529 bend_initresult *binitres;
531 yaz_log(log_requestdetail, "srw_bend_init config=%s", cb->configname);
532 assoc_init_reset(assoc);
536 Z_IdAuthentication *auth = (Z_IdAuthentication *)
537 odr_malloc(assoc->decode, sizeof(*auth));
540 len = strlen(sr->username) + 1;
542 len += strlen(sr->password) + 2;
543 auth->which = Z_IdAuthentication_open;
544 auth->u.open = (char *) odr_malloc(assoc->decode, len);
545 strcpy(auth->u.open, sr->username);
546 if (sr->password && *sr->password)
548 strcat(auth->u.open, "/");
549 strcat(auth->u.open, sr->password);
551 assoc->init->auth = auth;
555 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
556 assoc->init->charneg_request = ce->u.charNeg3;
559 if (!(binitres = (*cb->bend_init)(assoc->init)))
561 assoc->state = ASSOC_DEAD;
562 yaz_add_srw_diagnostic(assoc->encode, d, num,
563 YAZ_SRW_AUTHENTICATION_ERROR, 0);
566 assoc->backend = binitres->handle;
567 assoc->init->auth = 0;
568 if (binitres->errcode)
570 int srw_code = yaz_diag_bib1_to_srw(binitres->errcode);
571 assoc->state = ASSOC_DEAD;
572 yaz_add_srw_diagnostic(assoc->encode, d, num, srw_code,
573 binitres->errstring);
581 static int retrieve_fetch(association *assoc, bend_fetch_rr *rr)
584 yaz_record_conv_t rc = 0;
585 const char *match_schema = 0;
586 Odr_oid *match_syntax = 0;
591 const char *input_schema = yaz_get_esn(rr->comp);
592 Odr_oid *input_syntax_raw = rr->request_format;
594 const char *backend_schema = 0;
595 Odr_oid *backend_syntax = 0;
597 r = yaz_retrieval_request(assoc->server->retrieval,
605 if (r == -1) /* error ? */
607 const char *details = yaz_retrieval_get_error(
608 assoc->server->retrieval);
610 rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
612 rr->errstring = odr_strdup(rr->stream, details);
615 else if (r == 1 || r == 3)
617 const char *details = input_schema;
619 YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_;
621 rr->errstring = odr_strdup(rr->stream, details);
626 rr->errcode = YAZ_BIB1_RECORD_SYNTAX_UNSUPP;
627 if (input_syntax_raw)
629 char oidbuf[OID_STR_MAX];
630 oid_oid_to_dotstring(input_syntax_raw, oidbuf);
631 rr->errstring = odr_strdup(rr->stream, oidbuf);
637 yaz_set_esn(&rr->comp, backend_schema, odr_getmem(rr->stream));
640 rr->request_format = backend_syntax;
642 (*assoc->init->bend_fetch)(assoc->backend, rr);
643 if (rc && rr->record && rr->errcode == 0 && rr->len > 0)
644 { /* post conversion must take place .. */
645 WRBUF output_record = wrbuf_alloc();
646 int r = yaz_record_conv_record(rc, rr->record, rr->len, output_record);
649 const char *details = yaz_record_conv_get_error(rc);
650 rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
652 rr->errstring = odr_strdup(rr->stream, details);
656 rr->len = wrbuf_len(output_record);
657 rr->record = (char *) odr_malloc(rr->stream, rr->len);
658 memcpy(rr->record, wrbuf_buf(output_record), rr->len);
660 wrbuf_destroy(output_record);
663 rr->output_format = match_syntax;
665 rr->schema = odr_strdup(rr->stream, match_schema);
668 (*assoc->init->bend_fetch)(assoc->backend, rr);
673 static int srw_bend_fetch(association *assoc, int pos,
674 Z_SRW_searchRetrieveRequest *srw_req,
675 Z_SRW_record *record,
676 const char **addinfo)
679 ODR o = assoc->encode;
681 rr.setname = "default";
684 rr.request_format = odr_oiddup(assoc->decode, yaz_oid_recsyn_xml);
686 rr.comp = (Z_RecordComposition *)
687 odr_malloc(assoc->decode, sizeof(*rr.comp));
688 rr.comp->which = Z_RecordComp_complex;
689 rr.comp->u.complex = (Z_CompSpec *)
690 odr_malloc(assoc->decode, sizeof(Z_CompSpec));
691 rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
692 odr_malloc(assoc->encode, sizeof(bool_t));
693 *rr.comp->u.complex->selectAlternativeSyntax = 0;
694 rr.comp->u.complex->num_dbSpecific = 0;
695 rr.comp->u.complex->dbSpecific = 0;
696 rr.comp->u.complex->num_recordSyntax = 0;
697 rr.comp->u.complex->recordSyntax = 0;
699 rr.comp->u.complex->generic = (Z_Specification *)
700 odr_malloc(assoc->decode, sizeof(Z_Specification));
702 /* schema uri = recordSchema (or NULL if recordSchema is not given) */
703 rr.comp->u.complex->generic->which = Z_Schema_uri;
704 rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
706 /* ESN = recordSchema if recordSchema is present */
707 rr.comp->u.complex->generic->elementSpec = 0;
708 if (srw_req->recordSchema)
710 rr.comp->u.complex->generic->elementSpec =
711 (Z_ElementSpec *) odr_malloc(assoc->encode, sizeof(Z_ElementSpec));
712 rr.comp->u.complex->generic->elementSpec->which =
713 Z_ElementSpec_elementSetName;
714 rr.comp->u.complex->generic->elementSpec->u.elementSetName =
715 srw_req->recordSchema;
718 rr.stream = assoc->encode;
719 rr.print = assoc->print;
727 rr.surrogate_flag = 0;
728 rr.schema = srw_req->recordSchema;
730 if (!assoc->init->bend_fetch)
733 retrieve_fetch(assoc, &rr);
735 if (rr.errcode && rr.surrogate_flag)
737 int code = yaz_diag_bib1_to_srw(rr.errcode);
738 yaz_mk_sru_surrogate(o, record, pos, code, rr.errstring);
741 else if (rr.len >= 0)
743 record->recordData_buf = rr.record;
744 record->recordData_len = rr.len;
745 record->recordPosition = odr_intdup(o, pos);
746 record->recordSchema = odr_strdup_null(
747 o, rr.schema ? rr.schema : srw_req->recordSchema);
751 *addinfo = rr.errstring;
757 static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
758 Z_Query *query_result)
760 /* have a CQL query and CQL to PQF transform .. */
761 CQL_parser cp = cql_parser_create();
767 r = cql_parser_string(cp, cql);
770 srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR;
775 r = cql_transform_buf(ct,
776 cql_parser_result(cp),
777 rpn_buf, sizeof(rpn_buf)-1);
779 srw_errcode = cql_transform_error(ct, &add);
783 /* Syntax & transform OK. */
784 /* Convert PQF string to Z39.50 to RPN query struct */
785 YAZ_PQF_Parser pp = yaz_pqf_create();
786 Z_RPNQuery *rpnquery = yaz_pqf_parse(pp, odr, rpn_buf);
791 int code = yaz_pqf_error(pp, &pqf_msg, &off);
792 yaz_log(YLOG_WARN, "PQF Parser Error %s (code %d)",
794 srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR;
798 query_result->which = Z_Query_type_1;
799 query_result->u.type_1 = rpnquery;
803 cql_parser_destroy(cp);
807 static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
808 Z_AttributesPlusTerm *result)
812 int srw_error = cql2pqf(odr, cql, ct, &query);
815 if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
816 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* bad query type */
817 rpn = query.u.type_1;
818 if (!rpn->RPNStructure)
819 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be structure */
820 if (rpn->RPNStructure->which != Z_RPNStructure_simple)
821 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be simple */
822 if (rpn->RPNStructure->u.simple->which != Z_Operand_APT)
823 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be be attributes + term */
824 memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm,
830 static int ccl2pqf(ODR odr, const Odr_oct *ccl, CCL_bibset bibset,
831 bend_search_rr *bsrr) {
833 struct ccl_rpn_node *node;
836 ccl0 = odr_strdupn(odr, (char*) ccl->buf, ccl->len);
837 if ((node = ccl_find_str(bibset, ccl0, &errcode, &pos)) == 0) {
838 bsrr->errstring = (char*) ccl_err_msg(errcode);
839 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* Query syntax error */
842 bsrr->query->which = Z_Query_type_1;
843 bsrr->query->u.type_1 = ccl_rpn_query(odr, node);
848 static void srw_bend_search(association *assoc, request *req,
850 Z_SRW_searchRetrieveResponse *srw_res,
855 Z_SRW_searchRetrieveRequest *srw_req = sr->u.request;
858 yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest");
859 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
860 if (srw_res->num_diagnostics == 0 && assoc->init)
863 rr.setname = "default";
866 rr.basenames = &srw_req->database;
870 rr.srw_setnameIdleTime = 0;
871 rr.estimated_hit_count = 0;
872 rr.partial_resultset = 0;
873 rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
874 rr.query->u.type_1 = 0;
876 if (srw_req->query_type == Z_SRW_query_type_cql)
878 if (assoc->server && assoc->server->cql_transform)
880 int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
881 assoc->server->cql_transform,
885 yaz_add_srw_diagnostic(assoc->encode,
886 &srw_res->diagnostics,
887 &srw_res->num_diagnostics,
893 /* CQL query to backend. Wrap it - Z39.50 style */
894 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
895 ext->direct_reference = odr_getoidbystr(assoc->decode,
896 "1.2.840.10003.16.2");
897 ext->indirect_reference = 0;
899 ext->which = Z_External_CQL;
900 ext->u.cql = srw_req->query.cql;
902 rr.query->which = Z_Query_type_104;
903 rr.query->u.type_104 = ext;
906 else if (srw_req->query_type == Z_SRW_query_type_pqf)
908 Z_RPNQuery *RPNquery;
909 YAZ_PQF_Parser pqf_parser;
911 pqf_parser = yaz_pqf_create ();
913 RPNquery = yaz_pqf_parse (pqf_parser, assoc->decode,
919 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
920 yaz_log(log_requestdetail, "Parse error %d %s near offset %ld",
921 code, pqf_msg, (long) off);
922 srw_error = YAZ_SRW_QUERY_SYNTAX_ERROR;
925 rr.query->which = Z_Query_type_1;
926 rr.query->u.type_1 = RPNquery;
928 yaz_pqf_destroy (pqf_parser);
932 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
933 &srw_res->num_diagnostics,
934 YAZ_SRW_UNSUPP_QUERY_TYPE, 0);
936 if (rr.query->u.type_1)
938 rr.stream = assoc->encode;
939 rr.decode = assoc->decode;
940 rr.print = assoc->print;
942 if ( srw_req->sort.sortKeys )
943 rr.srw_sortKeys = odr_strdup(assoc->encode,
944 srw_req->sort.sortKeys );
945 rr.association = assoc;
951 yaz_log_zquery_level(log_requestdetail,rr.query);
953 (assoc->init->bend_search)(assoc->backend, &rr);
956 if (rr.errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
962 srw_error = yaz_diag_bib1_to_srw (rr.errcode);
963 yaz_add_srw_diagnostic(assoc->encode,
964 &srw_res->diagnostics,
965 &srw_res->num_diagnostics,
966 srw_error, rr.errstring);
971 int number = srw_req->maximumRecords ? *srw_req->maximumRecords : 0;
972 int start = srw_req->startRecord ? *srw_req->startRecord : 1;
974 yaz_log(log_requestdetail, "Request to pack %d+%d out of %d",
975 start, number, rr.hits);
977 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
980 srw_res->resultSetId =
981 odr_strdup(assoc->encode, rr.srw_setname );
982 srw_res->resultSetIdleTime =
983 odr_intdup(assoc->encode, *rr.srw_setnameIdleTime );
986 if (start > rr.hits || start < 1)
988 /* if hits<=0 and start=1 we don't return a diagnostic */
990 yaz_add_srw_diagnostic(
992 &srw_res->diagnostics, &srw_res->num_diagnostics,
993 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
999 if (start + number > rr.hits)
1000 number = rr.hits - start + 1;
1002 /* Call bend_present if defined */
1003 if (assoc->init->bend_present)
1005 bend_present_rr *bprr = (bend_present_rr*)
1006 odr_malloc (assoc->decode, sizeof(*bprr));
1007 bprr->setname = "default";
1008 bprr->start = start;
1009 bprr->number = number;
1010 if (srw_req->recordSchema)
1012 bprr->comp = (Z_RecordComposition *) odr_malloc(assoc->decode,
1013 sizeof(*bprr->comp));
1014 bprr->comp->which = Z_RecordComp_simple;
1015 bprr->comp->u.simple = (Z_ElementSetNames *)
1016 odr_malloc(assoc->decode, sizeof(Z_ElementSetNames));
1017 bprr->comp->u.simple->which = Z_ElementSetNames_generic;
1018 bprr->comp->u.simple->u.generic = srw_req->recordSchema;
1024 bprr->stream = assoc->encode;
1025 bprr->referenceId = 0;
1026 bprr->print = assoc->print;
1027 bprr->request = req;
1028 bprr->association = assoc;
1030 bprr->errstring = NULL;
1031 (*assoc->init->bend_present)(assoc->backend, bprr);
1037 srw_error = yaz_diag_bib1_to_srw (bprr->errcode);
1038 yaz_add_srw_diagnostic(assoc->encode,
1039 &srw_res->diagnostics,
1040 &srw_res->num_diagnostics,
1041 srw_error, bprr->errstring);
1049 int packing = Z_SRW_recordPacking_string;
1050 if (srw_req->recordPacking)
1053 yaz_srw_str_to_pack(srw_req->recordPacking);
1055 packing = Z_SRW_recordPacking_string;
1057 srw_res->records = (Z_SRW_record *)
1058 odr_malloc(assoc->encode,
1059 number * sizeof(*srw_res->records));
1061 srw_res->extra_records = (Z_SRW_extra_record **)
1062 odr_malloc(assoc->encode,
1063 number*sizeof(*srw_res->extra_records));
1065 for (i = 0; i<number; i++)
1068 const char *addinfo = 0;
1070 srw_res->records[j].recordPacking = packing;
1071 srw_res->records[j].recordData_buf = 0;
1072 srw_res->extra_records[j] = 0;
1073 yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
1074 errcode = srw_bend_fetch(assoc, i+start, srw_req,
1075 srw_res->records + j,
1079 yaz_add_srw_diagnostic(assoc->encode,
1080 &srw_res->diagnostics,
1081 &srw_res->num_diagnostics,
1082 yaz_diag_bib1_to_srw (errcode),
1087 if (srw_res->records[j].recordData_buf)
1090 srw_res->num_records = j;
1092 srw_res->records = 0;
1095 if (rr.estimated_hit_count || rr.partial_resultset)
1097 yaz_add_srw_diagnostic(
1099 &srw_res->diagnostics,
1100 &srw_res->num_diagnostics,
1101 YAZ_SRW_RESULT_SET_CREATED_WITH_VALID_PARTIAL_RESULTS_AVAILABLE,
1109 const char *querystr = "?";
1110 const char *querytype = "?";
1111 WRBUF wr = wrbuf_alloc();
1113 switch (srw_req->query_type)
1115 case Z_SRW_query_type_cql:
1117 querystr = srw_req->query.cql;
1119 case Z_SRW_query_type_pqf:
1121 querystr = srw_req->query.pqf;
1124 wrbuf_printf(wr, "SRWSearch ");
1125 wrbuf_printf(wr, srw_req->database);
1126 wrbuf_printf(wr, " ");
1127 if (srw_res->num_diagnostics)
1128 wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri);
1129 else if (*http_code != 200)
1130 wrbuf_printf(wr, "ERROR info:http/%d", *http_code);
1131 else if (srw_res->numberOfRecords)
1133 wrbuf_printf(wr, "OK %d",
1134 (srw_res->numberOfRecords ?
1135 *srw_res->numberOfRecords : 0));
1137 wrbuf_printf(wr, " %s %d+%d",
1138 (srw_res->resultSetId ?
1139 srw_res->resultSetId : "-"),
1140 (srw_req->startRecord ? *srw_req->startRecord : 1),
1141 srw_res->num_records);
1142 yaz_log(log_request, "%s %s: %s", wrbuf_cstr(wr), querytype, querystr);
1147 static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
1150 xmlNodePtr ptr = (xmlNode *) rr->server_node_ptr;
1153 for (ptr = ptr->children; ptr; ptr = ptr->next)
1155 if (ptr->type != XML_ELEMENT_NODE)
1157 if (!strcmp((const char *) ptr->name, "explain"))
1160 xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
1164 ptr = xmlCopyNode(ptr, 1);
1166 xmlDocSetRootElement(doc, ptr);
1168 xmlDocDumpMemory(doc, &buf_out, &len);
1169 content = (char*) odr_malloc(rr->stream, 1+len);
1170 memcpy(content, buf_out, len);
1171 content[len] = '\0';
1175 rr->explain_buf = content;
1183 static void srw_bend_explain(association *assoc, request *req,
1185 Z_SRW_explainResponse *srw_res,
1188 Z_SRW_explainRequest *srw_req = sr->u.explain_request;
1189 yaz_log(log_requestdetail, "Got SRW ExplainRequest");
1191 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1196 rr.stream = assoc->encode;
1197 rr.decode = assoc->decode;
1198 rr.print = assoc->print;
1200 rr.database = srw_req->database;
1202 rr.server_node_ptr = assoc->server->server_node_ptr;
1204 rr.server_node_ptr = 0;
1205 rr.schema = "http://explain.z3950.org/dtd/2.0/";
1206 if (assoc->init->bend_explain)
1207 (*assoc->init->bend_explain)(assoc->backend, &rr);
1209 srw_bend_explain_default(assoc->backend, &rr);
1213 int packing = Z_SRW_recordPacking_string;
1214 if (srw_req->recordPacking)
1217 yaz_srw_str_to_pack(srw_req->recordPacking);
1219 packing = Z_SRW_recordPacking_string;
1221 srw_res->record.recordSchema = rr.schema;
1222 srw_res->record.recordPacking = packing;
1223 srw_res->record.recordData_buf = rr.explain_buf;
1224 srw_res->record.recordData_len = strlen(rr.explain_buf);
1225 srw_res->record.recordPosition = 0;
1231 static void srw_bend_scan(association *assoc, request *req,
1233 Z_SRW_scanResponse *srw_res,
1236 Z_SRW_scanRequest *srw_req = sr->u.scan_request;
1237 yaz_log(log_requestdetail, "Got SRW ScanRequest");
1240 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1241 if (srw_res->num_diagnostics == 0 && assoc->init)
1243 struct scan_entry *save_entries;
1245 bend_scan_rr *bsrr = (bend_scan_rr *)
1246 odr_malloc (assoc->encode, sizeof(*bsrr));
1247 bsrr->num_bases = 1;
1248 bsrr->basenames = &srw_req->database;
1250 bsrr->num_entries = srw_req->maximumTerms ?
1251 *srw_req->maximumTerms : 10;
1252 bsrr->term_position = srw_req->responsePosition ?
1253 *srw_req->responsePosition : 1;
1256 bsrr->errstring = 0;
1257 bsrr->referenceId = 0;
1258 bsrr->stream = assoc->encode;
1259 bsrr->print = assoc->print;
1260 bsrr->step_size = odr_intdup(assoc->decode, 0);
1264 if (bsrr->num_entries > 0)
1267 bsrr->entries = (struct scan_entry *)
1268 odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
1270 for (i = 0; i<bsrr->num_entries; i++)
1272 bsrr->entries[i].term = 0;
1273 bsrr->entries[i].occurrences = 0;
1274 bsrr->entries[i].errcode = 0;
1275 bsrr->entries[i].errstring = 0;
1276 bsrr->entries[i].display_term = 0;
1279 save_entries = bsrr->entries; /* save it so we can compare later */
1281 if (srw_req->query_type == Z_SRW_query_type_pqf &&
1282 assoc->init->bend_scan)
1284 YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
1286 bsrr->term = yaz_pqf_scan(pqf_parser, assoc->decode,
1287 &bsrr->attributeset,
1288 srw_req->scanClause.pqf);
1289 yaz_pqf_destroy(pqf_parser);
1290 bsrr->scanClause = 0;
1291 ((int (*)(void *, bend_scan_rr *))
1292 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1294 else if (srw_req->query_type == Z_SRW_query_type_cql
1295 && assoc->init->bend_scan && assoc->server
1296 && assoc->server->cql_transform)
1299 bsrr->scanClause = 0;
1300 bsrr->attributeset = 0;
1301 bsrr->term = (Z_AttributesPlusTerm *)
1302 odr_malloc(assoc->decode, sizeof(*bsrr->term));
1303 srw_error = cql2pqf_scan(assoc->encode,
1304 srw_req->scanClause.cql,
1305 assoc->server->cql_transform,
1308 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1309 &srw_res->num_diagnostics,
1313 ((int (*)(void *, bend_scan_rr *))
1314 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1317 else if (srw_req->query_type == Z_SRW_query_type_cql
1318 && assoc->init->bend_srw_scan)
1321 bsrr->attributeset = 0;
1322 bsrr->scanClause = srw_req->scanClause.cql;
1323 ((int (*)(void *, bend_scan_rr *))
1324 (*assoc->init->bend_srw_scan))(assoc->backend, bsrr);
1328 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1329 &srw_res->num_diagnostics,
1330 YAZ_SRW_UNSUPP_OPERATION, "scan");
1335 if (bsrr->errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
1340 srw_error = yaz_diag_bib1_to_srw (bsrr->errcode);
1342 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1343 &srw_res->num_diagnostics,
1344 srw_error, bsrr->errstring);
1346 else if (srw_res->num_diagnostics == 0 && bsrr->num_entries)
1349 srw_res->terms = (Z_SRW_scanTerm*)
1350 odr_malloc(assoc->encode, sizeof(*srw_res->terms) *
1353 srw_res->num_terms = bsrr->num_entries;
1354 for (i = 0; i<bsrr->num_entries; i++)
1356 Z_SRW_scanTerm *t = srw_res->terms + i;
1357 t->value = odr_strdup(assoc->encode, bsrr->entries[i].term);
1358 t->numberOfRecords =
1359 odr_intdup(assoc->encode, bsrr->entries[i].occurrences);
1361 if (save_entries == bsrr->entries &&
1362 bsrr->entries[i].display_term)
1364 /* the entries was _not_ set by the handler. So it's
1365 safe to test for new member display_term. It is
1368 t->displayTerm = odr_strdup(assoc->encode,
1369 bsrr->entries[i].display_term);
1377 WRBUF wr = wrbuf_alloc();
1378 const char *querytype = 0;
1379 const char *querystr = 0;
1381 switch(srw_req->query_type)
1383 case Z_SRW_query_type_pqf:
1385 querystr = srw_req->scanClause.pqf;
1387 case Z_SRW_query_type_cql:
1389 querystr = srw_req->scanClause.cql;
1392 querytype = "UNKNOWN";
1396 wrbuf_printf(wr, "SRWScan ");
1397 wrbuf_printf(wr, srw_req->database);
1398 wrbuf_printf(wr, " ");
1400 if (srw_res->num_diagnostics)
1401 wrbuf_printf(wr, "ERROR %s - ", srw_res->diagnostics[0].uri);
1402 else if (srw_res->num_terms)
1403 wrbuf_printf(wr, "OK %d - ", srw_res->num_terms);
1405 wrbuf_printf(wr, "OK - - ");
1407 wrbuf_printf(wr, "%d+%d+0 ",
1408 (srw_req->responsePosition ?
1409 *srw_req->responsePosition : 1),
1410 (srw_req->maximumTerms ?
1411 *srw_req->maximumTerms : 1));
1412 /* there is no step size in SRU/W ??? */
1413 wrbuf_printf(wr, "%s: %s ", querytype, querystr);
1414 yaz_log(log_request, "%s ", wrbuf_cstr(wr) );
1420 static void srw_bend_update(association *assoc, request *req,
1422 Z_SRW_updateResponse *srw_res,
1425 Z_SRW_updateRequest *srw_req = sr->u.update_request;
1426 yaz_log(log_session, "SRWUpdate action=%s", srw_req->operation);
1427 yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics );
1429 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1433 Z_SRW_extra_record *extra = srw_req->extra_record;
1435 rr.stream = assoc->encode;
1436 rr.print = assoc->print;
1438 rr.basenames = &srw_req->database;
1439 rr.operation = srw_req->operation;
1440 rr.operation_status = "failed";
1442 rr.record_versions = 0;
1443 rr.num_versions = 0;
1444 rr.record_packing = "string";
1445 rr.record_schema = 0;
1447 rr.extra_record_data = 0;
1448 rr.extra_request_data = 0;
1449 rr.extra_response_data = 0;
1455 if (rr.operation == 0)
1457 yaz_add_sru_update_diagnostic(
1458 assoc->encode, &srw_res->diagnostics,
1459 &srw_res->num_diagnostics,
1460 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1464 yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] );
1465 yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation );
1466 if (!strcmp( rr.operation, "delete"))
1468 if (srw_req->record && !srw_req->record->recordSchema)
1470 rr.record_schema = odr_strdup(
1472 srw_req->record->recordSchema);
1474 if (srw_req->record)
1476 rr.record_data = odr_strdupn(
1478 srw_req->record->recordData_buf,
1479 srw_req->record->recordData_len );
1481 if (extra && extra->extraRecordData_len)
1483 rr.extra_record_data = odr_strdupn(
1485 extra->extraRecordData_buf,
1486 extra->extraRecordData_len );
1488 if (srw_req->recordId)
1489 rr.record_id = srw_req->recordId;
1490 else if (extra && extra->recordIdentifier)
1491 rr.record_id = extra->recordIdentifier;
1493 else if (!strcmp(rr.operation, "replace"))
1495 if (srw_req->recordId)
1496 rr.record_id = srw_req->recordId;
1497 else if (extra && extra->recordIdentifier)
1498 rr.record_id = extra->recordIdentifier;
1501 yaz_add_sru_update_diagnostic(
1502 assoc->encode, &srw_res->diagnostics,
1503 &srw_res->num_diagnostics,
1504 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1505 "recordIdentifier");
1507 if (!srw_req->record)
1509 yaz_add_sru_update_diagnostic(
1510 assoc->encode, &srw_res->diagnostics,
1511 &srw_res->num_diagnostics,
1512 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1517 if (srw_req->record->recordSchema)
1518 rr.record_schema = odr_strdup(
1519 assoc->encode, srw_req->record->recordSchema);
1520 if (srw_req->record->recordData_len )
1522 rr.record_data = odr_strdupn(assoc->encode,
1523 srw_req->record->recordData_buf,
1524 srw_req->record->recordData_len );
1528 yaz_add_sru_update_diagnostic(
1529 assoc->encode, &srw_res->diagnostics,
1530 &srw_res->num_diagnostics,
1531 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1535 if (extra && extra->extraRecordData_len)
1537 rr.extra_record_data = odr_strdupn(
1539 extra->extraRecordData_buf,
1540 extra->extraRecordData_len );
1543 else if (!strcmp(rr.operation, "insert"))
1545 if (srw_req->recordId)
1546 rr.record_id = srw_req->recordId;
1548 rr.record_id = extra->recordIdentifier;
1550 if (srw_req->record)
1552 if (srw_req->record->recordSchema)
1553 rr.record_schema = odr_strdup(
1554 assoc->encode, srw_req->record->recordSchema);
1556 if (srw_req->record->recordData_len)
1557 rr.record_data = odr_strdupn(
1559 srw_req->record->recordData_buf,
1560 srw_req->record->recordData_len );
1562 if (extra && extra->extraRecordData_len)
1564 rr.extra_record_data = odr_strdupn(
1566 extra->extraRecordData_buf,
1567 extra->extraRecordData_len );
1571 yaz_add_sru_update_diagnostic(assoc->encode, &srw_res->diagnostics,
1572 &srw_res->num_diagnostics,
1573 YAZ_SRU_UPDATE_INVALID_ACTION,
1576 if (srw_req->record)
1578 const char *pack_str =
1579 yaz_srw_pack_to_str(srw_req->record->recordPacking);
1581 rr.record_packing = odr_strdup(assoc->encode, pack_str);
1584 if (srw_req->num_recordVersions)
1586 rr.record_versions = srw_req->recordVersions;
1587 rr.num_versions = srw_req->num_recordVersions;
1589 if (srw_req->extraRequestData_len)
1591 rr.extra_request_data = odr_strdupn(assoc->encode,
1592 srw_req->extraRequestData_buf,
1593 srw_req->extraRequestData_len );
1595 if (srw_res->num_diagnostics == 0)
1597 if ( assoc->init->bend_srw_update)
1598 (*assoc->init->bend_srw_update)(assoc->backend, &rr);
1600 yaz_add_sru_update_diagnostic(
1601 assoc->encode, &srw_res->diagnostics,
1602 &srw_res->num_diagnostics,
1603 YAZ_SRU_UPDATE_UNSPECIFIED_DATABASE_ERROR,
1604 "No Update backend handler");
1608 yaz_add_srw_diagnostic_uri(assoc->encode,
1609 &srw_res->diagnostics,
1610 &srw_res->num_diagnostics,
1614 srw_res->recordId = rr.record_id;
1615 srw_res->operationStatus = rr.operation_status;
1616 srw_res->recordVersions = rr.record_versions;
1617 srw_res->num_recordVersions = rr.num_versions;
1618 if (srw_res->extraResponseData_len)
1620 srw_res->extraResponseData_buf = rr.extra_response_data;
1621 srw_res->extraResponseData_len = strlen(rr.extra_response_data);
1623 if (srw_res->num_diagnostics == 0 && rr.record_data)
1625 srw_res->record = yaz_srw_get_record(assoc->encode);
1626 srw_res->record->recordSchema = rr.record_schema;
1627 if (rr.record_packing)
1629 int pack = yaz_srw_str_to_pack(rr.record_packing);
1633 pack = Z_SRW_recordPacking_string;
1634 yaz_log(YLOG_WARN, "Back packing %s from backend",
1637 srw_res->record->recordPacking = pack;
1639 srw_res->record->recordData_buf = rr.record_data;
1640 srw_res->record->recordData_len = strlen(rr.record_data);
1641 if (rr.extra_record_data)
1643 Z_SRW_extra_record *ex =
1644 yaz_srw_get_extra_record(assoc->encode);
1645 srw_res->extra_record = ex;
1646 ex->extraRecordData_buf = rr.extra_record_data;
1647 ex->extraRecordData_len = strlen(rr.extra_record_data);
1653 /* check if path is OK (1); BAD (0) */
1654 static int check_path(const char *path)
1658 if (strstr(path, ".."))
1663 static char *read_file(const char *fname, ODR o, int *sz)
1666 FILE *inf = fopen(fname, "rb");
1670 fseek(inf, 0L, SEEK_END);
1673 buf = (char *) odr_malloc(o, *sz);
1674 fread(buf, 1, *sz, inf);
1679 static void process_http_request(association *assoc, request *req)
1681 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
1682 ODR o = assoc->encode;
1683 int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */
1685 Z_SOAP *soap_package = 0;
1688 Z_HTTP_Response *hres = 0;
1690 const char *stylesheet = 0; /* for now .. set later */
1691 Z_SRW_diagnostic *diagnostic = 0;
1692 int num_diagnostic = 0;
1693 const char *host = z_HTTP_header_lookup(hreq->headers, "Host");
1695 if (!control_association(assoc, host, 0))
1697 p = z_get_HTTP_Response(o, 404);
1700 if (r == 2 && assoc->server && assoc->server->docpath
1701 && hreq->path[0] == '/'
1703 /* check if path is a proper prefix of documentroot */
1704 strncmp(hreq->path+1, assoc->server->docpath,
1705 strlen(assoc->server->docpath))
1708 if (!check_path(hreq->path))
1710 yaz_log(YLOG_LOG, "File %s access forbidden", hreq->path+1);
1711 p = z_get_HTTP_Response(o, 404);
1715 int content_size = 0;
1716 char *content_buf = read_file(hreq->path+1, o, &content_size);
1719 yaz_log(YLOG_LOG, "File %s not found", hreq->path+1);
1720 p = z_get_HTTP_Response(o, 404);
1724 const char *ctype = 0;
1725 yaz_mime_types types = yaz_mime_types_create();
1727 yaz_mime_types_add(types, "xsl", "application/xml");
1728 yaz_mime_types_add(types, "xml", "application/xml");
1729 yaz_mime_types_add(types, "css", "text/css");
1730 yaz_mime_types_add(types, "html", "text/html");
1731 yaz_mime_types_add(types, "htm", "text/html");
1732 yaz_mime_types_add(types, "txt", "text/plain");
1733 yaz_mime_types_add(types, "js", "application/x-javascript");
1735 yaz_mime_types_add(types, "gif", "image/gif");
1736 yaz_mime_types_add(types, "png", "image/png");
1737 yaz_mime_types_add(types, "jpg", "image/jpeg");
1738 yaz_mime_types_add(types, "jpeg", "image/jpeg");
1740 ctype = yaz_mime_lookup_fname(types, hreq->path);
1743 yaz_log(YLOG_LOG, "No mime type for %s", hreq->path+1);
1744 p = z_get_HTTP_Response(o, 404);
1748 p = z_get_HTTP_Response(o, 200);
1749 hres = p->u.HTTP_Response;
1750 hres->content_buf = content_buf;
1751 hres->content_len = content_size;
1752 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1754 yaz_mime_types_destroy(types);
1762 r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset);
1763 yaz_log(YLOG_DEBUG, "yaz_srw_decode returned %d", r);
1765 if (r == 2) /* not taken */
1767 r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset,
1768 &diagnostic, &num_diagnostic);
1769 yaz_log(YLOG_DEBUG, "yaz_sru_decode returned %d", r);
1771 if (r == 0) /* decode SRW/SRU OK .. */
1773 int http_code = 200;
1774 if (sr->which == Z_SRW_searchRetrieve_request)
1777 yaz_srw_get_pdu(assoc->encode, Z_SRW_searchRetrieve_response,
1779 stylesheet = sr->u.request->stylesheet;
1782 res->u.response->diagnostics = diagnostic;
1783 res->u.response->num_diagnostics = num_diagnostic;
1787 srw_bend_search(assoc, req, sr, res->u.response,
1790 if (http_code == 200)
1791 soap_package->u.generic->p = res;
1793 else if (sr->which == Z_SRW_explain_request)
1795 Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_explain_response,
1797 stylesheet = sr->u.explain_request->stylesheet;
1800 res->u.explain_response->diagnostics = diagnostic;
1801 res->u.explain_response->num_diagnostics = num_diagnostic;
1803 srw_bend_explain(assoc, req, sr,
1804 res->u.explain_response, &http_code);
1805 if (http_code == 200)
1806 soap_package->u.generic->p = res;
1808 else if (sr->which == Z_SRW_scan_request)
1810 Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_scan_response,
1812 stylesheet = sr->u.scan_request->stylesheet;
1815 res->u.scan_response->diagnostics = diagnostic;
1816 res->u.scan_response->num_diagnostics = num_diagnostic;
1818 srw_bend_scan(assoc, req, sr,
1819 res->u.scan_response, &http_code);
1820 if (http_code == 200)
1821 soap_package->u.generic->p = res;
1823 else if (sr->which == Z_SRW_update_request)
1825 Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_update_response,
1827 yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest");
1830 res->u.update_response->diagnostics = diagnostic;
1831 res->u.update_response->num_diagnostics = num_diagnostic;
1833 yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics );
1834 srw_bend_update(assoc, req, sr,
1835 res->u.update_response, &http_code);
1836 if (http_code == 200)
1837 soap_package->u.generic->p = res;
1841 yaz_log(log_request, "SOAP ERROR");
1842 /* FIXME - what error, what query */
1844 z_soap_error(assoc->encode, soap_package,
1845 "SOAP-ENV:Client", "Bad method", 0);
1847 if (http_code == 200 || http_code == 500)
1849 static Z_SOAP_Handler soap_handlers[4] = {
1851 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
1852 {YAZ_XMLNS_SRU_v1_0, 0, (Z_SOAP_fun) yaz_srw_codec},
1853 {YAZ_XMLNS_UPDATE_v0_9, 0, (Z_SOAP_fun) yaz_ucp_codec},
1859 p = z_get_HTTP_Response(o, 200);
1860 hres = p->u.HTTP_Response;
1862 if (!stylesheet && assoc->server)
1863 stylesheet = assoc->server->stylesheet;
1865 /* empty stylesheet means NO stylesheet */
1866 if (stylesheet && *stylesheet == '\0')
1869 ret = z_soap_codec_enc_xsl(assoc->encode, &soap_package,
1870 &hres->content_buf, &hres->content_len,
1871 soap_handlers, charset, stylesheet);
1872 hres->code = http_code;
1874 strcpy(ctype, "text/xml");
1875 if (charset && strlen(charset) < sizeof(ctype)-30)
1877 strcat(ctype, "; charset=");
1878 strcat(ctype, charset);
1880 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1883 p = z_get_HTTP_Response(o, http_code);
1887 p = z_get_HTTP_Response(o, 500);
1888 hres = p->u.HTTP_Response;
1889 if (!strcmp(hreq->version, "1.0"))
1891 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1892 if (v && !strcmp(v, "Keep-Alive"))
1896 hres->version = "1.0";
1900 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1901 if (v && !strcmp(v, "close"))
1905 hres->version = "1.1";
1909 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1910 assoc->state = ASSOC_DEAD;
1911 assoc->cs_get_mask = 0;
1916 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1918 if (alive && isdigit(*(const unsigned char *) alive))
1922 if (t < 0 || t > 3600)
1924 iochan_settimeout(assoc->client_chan,t);
1925 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1927 process_gdu_response(assoc, req, p);
1930 static void process_gdu_request(association *assoc, request *req)
1932 if (req->gdu_request->which == Z_GDU_Z3950)
1935 req->apdu_request = req->gdu_request->u.z3950;
1936 if (process_z_request(assoc, req, &msg) < 0)
1937 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1939 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1940 process_http_request(assoc, req);
1943 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1948 * Initiate request processing.
1950 static int process_z_request(association *assoc, request *req, char **msg)
1956 *msg = "Unknown Error";
1957 assert(req && req->state == REQUEST_IDLE);
1958 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1960 *msg = "Missing InitRequest";
1963 switch (req->apdu_request->which)
1965 case Z_APDU_initRequest:
1966 res = process_initRequest(assoc, req); break;
1967 case Z_APDU_searchRequest:
1968 res = process_searchRequest(assoc, req, &fd); break;
1969 case Z_APDU_presentRequest:
1970 res = process_presentRequest(assoc, req, &fd); break;
1971 case Z_APDU_scanRequest:
1972 if (assoc->init->bend_scan)
1973 res = process_scanRequest(assoc, req, &fd);
1976 *msg = "Cannot handle Scan APDU";
1980 case Z_APDU_extendedServicesRequest:
1981 if (assoc->init->bend_esrequest)
1982 res = process_ESRequest(assoc, req, &fd);
1985 *msg = "Cannot handle Extended Services APDU";
1989 case Z_APDU_sortRequest:
1990 if (assoc->init->bend_sort)
1991 res = process_sortRequest(assoc, req, &fd);
1994 *msg = "Cannot handle Sort APDU";
1999 process_close(assoc, req);
2001 case Z_APDU_deleteResultSetRequest:
2002 if (assoc->init->bend_delete)
2003 res = process_deleteRequest(assoc, req, &fd);
2006 *msg = "Cannot handle Delete APDU";
2010 case Z_APDU_segmentRequest:
2011 if (assoc->init->bend_segment)
2013 res = process_segmentRequest (assoc, req);
2017 *msg = "Cannot handle Segment APDU";
2021 case Z_APDU_triggerResourceControlRequest:
2024 *msg = "Bad APDU received";
2029 yaz_log(YLOG_DEBUG, " result immediately available");
2030 retval = process_z_response(assoc, req, res);
2034 yaz_log(YLOG_DEBUG, " result unavailble");
2037 else /* no result yet - one will be provided later */
2041 /* Set up an I/O handler for the fd supplied by the backend */
2043 yaz_log(YLOG_DEBUG, " establishing handler for result");
2044 req->state = REQUEST_PENDING;
2045 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT, 0)))
2047 iochan_setdata(chan, assoc);
2054 * Handle message from the backend.
2056 void backend_response(IOCHAN i, int event)
2058 association *assoc = (association *)iochan_getdata(i);
2059 request *req = request_head(&assoc->incoming);
2063 yaz_log(YLOG_DEBUG, "backend_response");
2064 assert(assoc && req && req->state != REQUEST_IDLE);
2065 /* determine what it is we're waiting for */
2066 switch (req->apdu_request->which)
2068 case Z_APDU_searchRequest:
2069 res = response_searchRequest(assoc, req, 0, &fd); break;
2071 case Z_APDU_presentRequest:
2072 res = response_presentRequest(assoc, req, 0, &fd); break;
2073 case Z_APDU_scanRequest:
2074 res = response_scanRequest(assoc, req, 0, &fd); break;
2077 yaz_log(YLOG_FATAL, "Serious programmer's lapse or bug");
2080 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
2082 yaz_log(YLOG_WARN, "Fatal error when talking to backend");
2083 do_close(assoc, Z_Close_systemProblem, 0);
2087 else if (!res) /* no result yet - try again later */
2089 yaz_log(YLOG_DEBUG, " no result yet");
2090 iochan_setfd(i, fd); /* in case fd has changed */
2095 * Encode response, and transfer the request structure to the outgoing queue.
2097 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
2099 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
2103 if (!z_GDU(assoc->print, &res, 0, 0))
2104 yaz_log(YLOG_WARN, "ODR print error: %s",
2105 odr_errmsg(odr_geterror(assoc->print)));
2106 odr_reset(assoc->print);
2108 if (!z_GDU(assoc->encode, &res, 0, 0))
2110 yaz_log(YLOG_WARN, "ODR error when encoding PDU: %s [element %s]",
2111 odr_errmsg(odr_geterror(assoc->decode)),
2112 odr_getelement(assoc->decode));
2115 req->response = odr_getbuf(assoc->encode, &req->len_response,
2116 &req->size_response);
2117 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
2118 odr_reset(assoc->encode);
2119 req->state = REQUEST_IDLE;
2120 request_enq(&assoc->outgoing, req);
2121 /* turn the work over to the ir_session handler */
2122 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
2123 assoc->cs_put_mask = EVENT_OUTPUT;
2124 /* Is there more work to be done? give that to the input handler too */
2127 req = request_head(&assoc->incoming);
2128 if (req && req->state == REQUEST_IDLE)
2130 request_deq(&assoc->incoming);
2131 process_gdu_request(assoc, req);
2140 * Encode response, and transfer the request structure to the outgoing queue.
2142 static int process_z_response(association *assoc, request *req, Z_APDU *res)
2144 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
2145 gres->which = Z_GDU_Z3950;
2146 gres->u.z3950 = res;
2148 return process_gdu_response(assoc, req, gres);
2151 static char *get_vhost(Z_OtherInformation *otherInfo)
2153 return yaz_oi_get_string_oid(&otherInfo, yaz_oid_userinfo_proxy, 1, 0);
2157 * Handle init request.
2158 * At the moment, we don't check the options
2159 * anywhere else in the code - we just try not to do anything that would
2160 * break a naive client. We'll toss 'em into the association block when
2161 * we need them there.
2163 static Z_APDU *process_initRequest(association *assoc, request *reqb)
2165 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
2166 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
2167 Z_InitResponse *resp = apdu->u.initResponse;
2168 bend_initresult *binitres;
2171 statserv_options_block *cb = 0; /* by default no control for backend */
2173 if (control_association(assoc, get_vhost(req->otherInfo), 1))
2174 cb = statserv_getcontrol(); /* got control block for backend */
2176 if (cb && assoc->backend)
2177 (*cb->bend_close)(assoc->backend);
2179 yaz_log(log_requestdetail, "Got initRequest");
2180 if (req->implementationId)
2181 yaz_log(log_requestdetail, "Id: %s",
2182 req->implementationId);
2183 if (req->implementationName)
2184 yaz_log(log_requestdetail, "Name: %s",
2185 req->implementationName);
2186 if (req->implementationVersion)
2187 yaz_log(log_requestdetail, "Version: %s",
2188 req->implementationVersion);
2190 assoc_init_reset(assoc);
2192 assoc->init->auth = req->idAuthentication;
2193 assoc->init->referenceId = req->referenceId;
2195 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2197 Z_CharSetandLanguageNegotiation *negotiation =
2198 yaz_get_charneg_record (req->otherInfo);
2200 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2201 assoc->init->charneg_request = negotiation;
2207 if (req->implementationVersion)
2208 yaz_log(log_requestdetail, "Config: %s",
2211 iochan_settimeout(assoc->client_chan, cb->idle_timeout * 60);
2213 /* we have a backend control block, so call that init function */
2214 if (!(binitres = (*cb->bend_init)(assoc->init)))
2216 yaz_log(YLOG_WARN, "Bad response from backend.");
2219 assoc->backend = binitres->handle;
2223 /* no backend. return error */
2224 binitres = (bend_initresult *)
2225 odr_malloc(assoc->encode, sizeof(*binitres));
2226 binitres->errstring = 0;
2227 binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
2228 iochan_settimeout(assoc->client_chan, 10);
2230 if ((assoc->init->bend_sort))
2231 yaz_log (YLOG_DEBUG, "Sort handler installed");
2232 if ((assoc->init->bend_search))
2233 yaz_log (YLOG_DEBUG, "Search handler installed");
2234 if ((assoc->init->bend_present))
2235 yaz_log (YLOG_DEBUG, "Present handler installed");
2236 if ((assoc->init->bend_esrequest))
2237 yaz_log (YLOG_DEBUG, "ESRequest handler installed");
2238 if ((assoc->init->bend_delete))
2239 yaz_log (YLOG_DEBUG, "Delete handler installed");
2240 if ((assoc->init->bend_scan))
2241 yaz_log (YLOG_DEBUG, "Scan handler installed");
2242 if ((assoc->init->bend_segment))
2243 yaz_log (YLOG_DEBUG, "Segment handler installed");
2245 resp->referenceId = req->referenceId;
2247 /* let's tell the client what we can do */
2248 if (ODR_MASK_GET(req->options, Z_Options_search))
2250 ODR_MASK_SET(resp->options, Z_Options_search);
2251 strcat(options, "srch");
2253 if (ODR_MASK_GET(req->options, Z_Options_present))
2255 ODR_MASK_SET(resp->options, Z_Options_present);
2256 strcat(options, " prst");
2258 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
2259 assoc->init->bend_delete)
2261 ODR_MASK_SET(resp->options, Z_Options_delSet);
2262 strcat(options, " del");
2264 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
2265 assoc->init->bend_esrequest)
2267 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
2268 strcat (options, " extendedServices");
2270 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
2272 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
2273 strcat(options, " namedresults");
2275 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
2277 ODR_MASK_SET(resp->options, Z_Options_scan);
2278 strcat(options, " scan");
2280 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
2282 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
2283 strcat(options, " concurrop");
2285 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
2287 ODR_MASK_SET(resp->options, Z_Options_sort);
2288 strcat(options, " sort");
2291 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2293 Z_OtherInformationUnit *p0;
2295 if (!assoc->init->charneg_response)
2297 if (assoc->init->query_charset)
2299 assoc->init->charneg_response = yaz_set_response_charneg(
2300 assoc->encode, assoc->init->query_charset, 0,
2301 assoc->init->records_in_same_charset);
2305 yaz_log(YLOG_WARN, "default query_charset not defined by backend");
2308 if (assoc->init->charneg_response
2309 && (p0=yaz_oi_update(&resp->otherInfo, assoc->encode, NULL, 0, 0)))
2311 p0->which = Z_OtherInfo_externallyDefinedInfo;
2312 p0->information.externallyDefinedInfo =
2313 assoc->init->charneg_response;
2314 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2315 strcat(options, " negotiation");
2318 if (ODR_MASK_GET(req->options, Z_Options_triggerResourceCtrl))
2319 ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
2321 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
2323 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
2324 assoc->version = 1; /* 1 & 2 are equivalent */
2326 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
2328 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
2331 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
2333 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
2337 yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
2339 if (*req->maximumRecordSize < assoc->maximumRecordSize)
2340 assoc->maximumRecordSize = *req->maximumRecordSize;
2342 if (*req->preferredMessageSize < assoc->preferredMessageSize)
2343 assoc->preferredMessageSize = *req->preferredMessageSize;
2345 resp->preferredMessageSize = &assoc->preferredMessageSize;
2346 resp->maximumRecordSize = &assoc->maximumRecordSize;
2348 resp->implementationId = odr_prepend(assoc->encode,
2349 assoc->init->implementation_id,
2350 resp->implementationId);
2352 resp->implementationName = odr_prepend(assoc->encode,
2353 assoc->init->implementation_name,
2354 odr_prepend(assoc->encode, "GFS", resp->implementationName));
2356 version = odr_strdup(assoc->encode, "$Revision: 1.128 $");
2357 if (strlen(version) > 10) /* check for unexpanded CVS strings */
2358 version[strlen(version)-2] = '\0';
2359 resp->implementationVersion = odr_prepend(assoc->encode,
2360 assoc->init->implementation_version,
2361 odr_prepend(assoc->encode, &version[11],
2362 resp->implementationVersion));
2364 if (binitres->errcode)
2366 assoc->state = ASSOC_DEAD;
2367 resp->userInformationField =
2368 init_diagnostics(assoc->encode, binitres->errcode,
2369 binitres->errstring);
2374 if (!req->idAuthentication)
2375 yaz_log(log_request, "Auth none");
2376 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2378 const char *open = req->idAuthentication->u.open;
2379 const char *slash = strchr(open, '/');
2385 yaz_log(log_request, "Auth open %.*s", len, open);
2387 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2389 const char *user = req->idAuthentication->u.idPass->userId;
2390 const char *group = req->idAuthentication->u.idPass->groupId;
2391 yaz_log(log_request, "Auth idPass %s %s",
2392 user ? user : "-", group ? group : "-");
2394 else if (req->idAuthentication->which
2395 == Z_IdAuthentication_anonymous)
2397 yaz_log(log_request, "Auth anonymous");
2401 yaz_log(log_request, "Auth other");
2406 WRBUF wr = wrbuf_alloc();
2407 wrbuf_printf(wr, "Init ");
2408 if (binitres->errcode)
2409 wrbuf_printf(wr, "ERROR %d", binitres->errcode);
2411 wrbuf_printf(wr, "OK -");
2412 wrbuf_printf(wr, " ID:%s Name:%s Version:%s",
2413 (req->implementationId ? req->implementationId :"-"),
2414 (req->implementationName ?
2415 req->implementationName : "-"),
2416 (req->implementationVersion ?
2417 req->implementationVersion : "-")
2419 yaz_log(log_request, "%s", wrbuf_cstr(wr));
2426 * Set the specified `errcode' and `errstring' into a UserInfo-1
2427 * external to be returned to the client in accordance with Z35.90
2428 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
2429 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
2431 static Z_External *init_diagnostics(ODR odr, int error, const char *addinfo)
2433 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2434 addinfo ? " -- " : "", addinfo ? addinfo : "");
2435 return zget_init_diagnostics(odr, error, addinfo);
2439 * nonsurrogate diagnostic record.
2441 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
2443 Z_Records *rec = (Z_Records *) odr_malloc (assoc->encode, sizeof(*rec));
2445 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2446 addinfo ? " -- " : "", addinfo ? addinfo : "");
2448 rec->which = Z_Records_NSD;
2449 rec->u.nonSurrogateDiagnostic = zget_DefaultDiagFormat(assoc->encode,
2455 * surrogate diagnostic.
2457 static Z_NamePlusRecord *surrogatediagrec(association *assoc,
2459 int error, const char *addinfo)
2461 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2462 addinfo ? " -- " : "", addinfo ? addinfo : "");
2463 return zget_surrogateDiagRec(assoc->encode, dbname, error, addinfo);
2466 static Z_Records *pack_records(association *a, char *setname, int start,
2467 int *num, Z_RecordComposition *comp,
2468 int *next, int *pres,
2469 Z_ReferenceId *referenceId,
2470 Odr_oid *oid, int *errcode)
2472 int recno, total_length = 0, toget = *num, dumped_records = 0;
2473 Z_Records *records =
2474 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
2475 Z_NamePlusRecordList *reclist =
2476 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
2477 Z_NamePlusRecord **list =
2478 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
2480 records->which = Z_Records_DBOSD;
2481 records->u.databaseOrSurDiagnostics = reclist;
2482 reclist->num_records = 0;
2483 reclist->records = list;
2484 *pres = Z_PresentStatus_success;
2488 yaz_log(log_requestdetail, "Request to pack %d+%d %s", start, toget, setname);
2489 yaz_log(log_requestdetail, "pms=%d, mrs=%d", a->preferredMessageSize,
2490 a->maximumRecordSize);
2491 for (recno = start; reclist->num_records < toget; recno++)
2494 Z_NamePlusRecord *thisrec;
2495 int this_length = 0;
2497 * we get the number of bytes allocated on the stream before any
2498 * allocation done by the backend - this should give us a reasonable
2499 * idea of the total size of the data so far.
2501 total_length = odr_total(a->encode) - dumped_records;
2507 freq.last_in_set = 0;
2508 freq.setname = setname;
2509 freq.surrogate_flag = 0;
2510 freq.number = recno;
2512 freq.request_format = oid;
2513 freq.output_format = 0;
2514 freq.stream = a->encode;
2515 freq.print = a->print;
2516 freq.referenceId = referenceId;
2519 retrieve_fetch(a, &freq);
2521 *next = freq.last_in_set ? 0 : recno + 1;
2525 if (!freq.surrogate_flag) /* non-surrogate diagnostic i.e. global */
2528 *pres = Z_PresentStatus_failure;
2529 /* for 'present request out of range',
2530 set addinfo to record position if not set */
2531 if (freq.errcode == YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE &&
2532 freq.errstring == 0)
2534 sprintf (s, "%d", recno);
2538 *errcode = freq.errcode;
2539 return diagrec(a, freq.errcode, freq.errstring);
2541 reclist->records[reclist->num_records] =
2542 surrogatediagrec(a, freq.basename, freq.errcode,
2544 reclist->num_records++;
2547 if (freq.record == 0) /* no error and no record ? */
2549 *next = 0; /* signal end-of-set and stop */
2553 this_length = freq.len;
2555 this_length = odr_total(a->encode) - total_length - dumped_records;
2556 yaz_log(YLOG_DEBUG, " fetched record, len=%d, total=%d dumped=%d",
2557 this_length, total_length, dumped_records);
2558 if (a->preferredMessageSize > 0 &&
2559 this_length + total_length > a->preferredMessageSize)
2561 /* record is small enough, really */
2562 if (this_length <= a->preferredMessageSize && recno > start)
2564 yaz_log(log_requestdetail, " Dropped last normal-sized record");
2565 *pres = Z_PresentStatus_partial_2;
2568 /* record can only be fetched by itself */
2569 if (this_length < a->maximumRecordSize)
2571 yaz_log(log_requestdetail, " Record > prefmsgsz");
2574 yaz_log(YLOG_DEBUG, " Dropped it");
2575 reclist->records[reclist->num_records] =
2576 surrogatediagrec(a, freq.basename, 16, 0);
2577 reclist->num_records++;
2578 dumped_records += this_length;
2582 else /* too big entirely */
2584 yaz_log(log_requestdetail, "Record > maxrcdsz this=%d max=%d",
2585 this_length, a->maximumRecordSize);
2586 reclist->records[reclist->num_records] =
2587 surrogatediagrec(a, freq.basename, 17, 0);
2588 reclist->num_records++;
2589 dumped_records += this_length;
2594 if (!(thisrec = (Z_NamePlusRecord *)
2595 odr_malloc(a->encode, sizeof(*thisrec))))
2597 thisrec->databaseName = odr_strdup_null(a->encode, freq.basename);
2598 thisrec->which = Z_NamePlusRecord_databaseRecord;
2600 if (!freq.output_format)
2601 freq.output_format = freq.request_format;
2602 thisrec->u.databaseRecord = z_ext_record_oid(
2603 a->encode, freq.output_format, freq.record, freq.len);
2604 if (!thisrec->u.databaseRecord)
2606 reclist->records[reclist->num_records] = thisrec;
2607 reclist->num_records++;
2609 *num = reclist->num_records;
2613 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
2616 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2617 bend_search_rr *bsrr =
2618 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
2620 yaz_log(log_requestdetail, "Got SearchRequest.");
2622 bsrr->request = reqb;
2623 bsrr->association = assoc;
2624 bsrr->referenceId = req->referenceId;
2625 save_referenceId (reqb, bsrr->referenceId);
2626 bsrr->srw_sortKeys = 0;
2627 bsrr->srw_setname = 0;
2628 bsrr->srw_setnameIdleTime = 0;
2629 bsrr->estimated_hit_count = 0;
2630 bsrr->partial_resultset = 0;
2632 yaz_log (log_requestdetail, "ResultSet '%s'", req->resultSetName);
2633 if (req->databaseNames)
2636 for (i = 0; i < req->num_databaseNames; i++)
2637 yaz_log(log_requestdetail, "Database '%s'", req->databaseNames[i]);
2640 yaz_log_zquery_level(log_requestdetail,req->query);
2642 if (assoc->init->bend_search)
2644 bsrr->setname = req->resultSetName;
2645 bsrr->replace_set = *req->replaceIndicator;
2646 bsrr->num_bases = req->num_databaseNames;
2647 bsrr->basenames = req->databaseNames;
2648 bsrr->query = req->query;
2649 bsrr->stream = assoc->encode;
2650 nmem_transfer(odr_getmem(bsrr->stream), reqb->request_mem);
2651 bsrr->decode = assoc->decode;
2652 bsrr->print = assoc->print;
2655 bsrr->errstring = NULL;
2656 bsrr->search_info = NULL;
2658 if (assoc->server && assoc->server->cql_transform
2659 && req->query->which == Z_Query_type_104
2660 && req->query->u.type_104->which == Z_External_CQL)
2662 /* have a CQL query and a CQL to PQF transform .. */
2664 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
2665 assoc->server->cql_transform, bsrr->query);
2667 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2670 if (assoc->server && assoc->server->ccl_transform
2671 && req->query->which == Z_Query_type_2) /*CCL*/
2673 /* have a CCL query and a CCL to PQF transform .. */
2675 ccl2pqf(bsrr->stream, req->query->u.type_2,
2676 assoc->server->ccl_transform, bsrr);
2678 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2682 (assoc->init->bend_search)(assoc->backend, bsrr);
2683 if (!bsrr->request) /* backend not ready with the search response */
2684 return 0; /* should not be used any more */
2688 /* FIXME - make a diagnostic for it */
2689 yaz_log(YLOG_WARN,"Search not supported ?!?!");
2691 return response_searchRequest(assoc, reqb, bsrr, fd);
2694 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
2697 * Prepare a searchresponse based on the backend results. We probably want
2698 * to look at making the fetching of records nonblocking as well, but
2699 * so far, we'll keep things simple.
2700 * If bsrt is null, that means we're called in response to a communications
2701 * event, and we'll have to get the response for ourselves.
2703 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
2704 bend_search_rr *bsrt, int *fd)
2706 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2707 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2708 Z_SearchResponse *resp = (Z_SearchResponse *)
2709 odr_malloc (assoc->encode, sizeof(*resp));
2710 int *nulint = odr_intdup (assoc->encode, 0);
2711 int *next = odr_intdup(assoc->encode, 0);
2712 int *none = odr_intdup(assoc->encode, Z_SearchResponse_none);
2713 int returnedrecs = 0;
2715 apdu->which = Z_APDU_searchResponse;
2716 apdu->u.searchResponse = resp;
2717 resp->referenceId = req->referenceId;
2718 resp->additionalSearchInfo = 0;
2719 resp->otherInfo = 0;
2721 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
2723 yaz_log(YLOG_FATAL, "Bad result from backend");
2726 else if (bsrt->errcode)
2728 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
2729 resp->resultCount = nulint;
2730 resp->numberOfRecordsReturned = nulint;
2731 resp->nextResultSetPosition = nulint;
2732 resp->searchStatus = nulint;
2733 resp->resultSetStatus = none;
2734 resp->presentStatus = 0;
2738 bool_t *sr = odr_intdup(assoc->encode, 1);
2739 int *toget = odr_intdup(assoc->encode, 0);
2740 Z_RecordComposition comp, *compp = 0;
2742 yaz_log (log_requestdetail, "resultCount: %d", bsrt->hits);
2745 resp->resultCount = &bsrt->hits;
2747 comp.which = Z_RecordComp_simple;
2748 /* how many records does the user agent want, then? */
2749 if (bsrt->hits <= *req->smallSetUpperBound)
2751 *toget = bsrt->hits;
2752 if ((comp.u.simple = req->smallSetElementSetNames))
2755 else if (bsrt->hits < *req->largeSetLowerBound)
2757 *toget = *req->mediumSetPresentNumber;
2758 if (*toget > bsrt->hits)
2759 *toget = bsrt->hits;
2760 if ((comp.u.simple = req->mediumSetElementSetNames))
2766 if (*toget && !resp->records)
2768 int *presst = odr_intdup(assoc->encode, 0);
2769 /* Call bend_present if defined */
2770 if (assoc->init->bend_present)
2772 bend_present_rr *bprr = (bend_present_rr *)
2773 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2774 bprr->setname = req->resultSetName;
2776 bprr->number = *toget;
2777 bprr->format = req->preferredRecordSyntax;
2779 bprr->referenceId = req->referenceId;
2780 bprr->stream = assoc->encode;
2781 bprr->print = assoc->print;
2782 bprr->request = reqb;
2783 bprr->association = assoc;
2785 bprr->errstring = NULL;
2786 (*assoc->init->bend_present)(assoc->backend, bprr);
2792 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2793 *resp->presentStatus = Z_PresentStatus_failure;
2798 resp->records = pack_records(
2799 assoc, req->resultSetName, 1,
2800 toget, compp, next, presst, req->referenceId,
2801 req->preferredRecordSyntax, NULL);
2804 resp->numberOfRecordsReturned = toget;
2805 returnedrecs = *toget;
2806 resp->presentStatus = presst;
2810 if (*resp->resultCount)
2812 resp->numberOfRecordsReturned = nulint;
2813 resp->presentStatus = 0;
2815 resp->nextResultSetPosition = next;
2816 resp->searchStatus = sr;
2817 resp->resultSetStatus = 0;
2818 if (bsrt->estimated_hit_count)
2820 resp->resultSetStatus = odr_intdup(assoc->encode,
2821 Z_SearchResponse_estimate);
2823 else if (bsrt->partial_resultset)
2825 resp->resultSetStatus = odr_intdup(assoc->encode,
2826 Z_SearchResponse_subset);
2829 resp->additionalSearchInfo = bsrt->search_info;
2834 WRBUF wr = wrbuf_alloc();
2836 for (i = 0 ; i < req->num_databaseNames; i++){
2838 wrbuf_printf(wr, "+");
2839 wrbuf_printf(wr, req->databaseNames[i]);
2841 wrbuf_printf(wr, " ");
2844 wrbuf_printf(wr, "ERROR %d", bsrt->errcode);
2846 wrbuf_printf(wr, "OK %d", bsrt->hits);
2847 wrbuf_printf(wr, " %s 1+%d ",
2848 req->resultSetName, returnedrecs);
2849 yaz_query_to_wrbuf(wr, req->query);
2851 yaz_log(log_request, "Search %s", wrbuf_cstr(wr));
2858 * Maybe we got a little over-friendly when we designed bend_fetch to
2859 * get only one record at a time. Some backends can optimise multiple-record
2860 * fetches, and at any rate, there is some overhead involved in
2861 * all that selecting and hopping around. Problem is, of course, that the
2862 * frontend can't know ahead of time how many records it'll need to
2863 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
2864 * is downright lousy as a bulk data transfer protocol.
2866 * To start with, we'll do the fetching of records from the backend
2867 * in one operation: To save some trips in and out of the event-handler,
2868 * and to simplify the interface to pack_records. At any rate, asynch
2869 * operation is more fun in operations that have an unpredictable execution
2870 * speed - which is normally more true for search than for present.
2872 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
2875 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
2877 Z_PresentResponse *resp;
2881 const char *errstring = 0;
2883 yaz_log(log_requestdetail, "Got PresentRequest.");
2885 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
2887 resp->presentStatus = odr_intdup(assoc->encode, 0);
2888 if (assoc->init->bend_present)
2890 bend_present_rr *bprr = (bend_present_rr *)
2891 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2892 bprr->setname = req->resultSetId;
2893 bprr->start = *req->resultSetStartPoint;
2894 bprr->number = *req->numberOfRecordsRequested;
2895 bprr->format = req->preferredRecordSyntax;
2896 bprr->comp = req->recordComposition;
2897 bprr->referenceId = req->referenceId;
2898 bprr->stream = assoc->encode;
2899 bprr->print = assoc->print;
2900 bprr->request = reqb;
2901 bprr->association = assoc;
2903 bprr->errstring = NULL;
2904 (*assoc->init->bend_present)(assoc->backend, bprr);
2907 return 0; /* should not happen */
2910 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2911 *resp->presentStatus = Z_PresentStatus_failure;
2912 errcode = bprr->errcode;
2913 errstring = bprr->errstring;
2916 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2917 next = odr_intdup(assoc->encode, 0);
2918 num = odr_intdup(assoc->encode, 0);
2920 apdu->which = Z_APDU_presentResponse;
2921 apdu->u.presentResponse = resp;
2922 resp->referenceId = req->referenceId;
2923 resp->otherInfo = 0;
2927 *num = *req->numberOfRecordsRequested;
2929 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
2930 num, req->recordComposition, next,
2931 resp->presentStatus,
2932 req->referenceId, req->preferredRecordSyntax,
2937 WRBUF wr = wrbuf_alloc();
2938 wrbuf_printf(wr, "Present ");
2940 if (*resp->presentStatus == Z_PresentStatus_failure)
2941 wrbuf_printf(wr, "ERROR %d ", errcode);
2942 else if (*resp->presentStatus == Z_PresentStatus_success)
2943 wrbuf_printf(wr, "OK - ");
2945 wrbuf_printf(wr, "Partial %d - ", *resp->presentStatus);
2947 wrbuf_printf(wr, " %s %d+%d ",
2948 req->resultSetId, *req->resultSetStartPoint,
2949 *req->numberOfRecordsRequested);
2950 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
2955 resp->numberOfRecordsReturned = num;
2956 resp->nextResultSetPosition = next;
2962 * Scan was implemented rather in a hurry, and with support for only the basic
2963 * elements of the service in the backend API. Suggestions are welcome.
2965 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
2967 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
2968 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2969 Z_ScanResponse *res = (Z_ScanResponse *)
2970 odr_malloc (assoc->encode, sizeof(*res));
2971 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2972 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2973 Z_ListEntries *ents = (Z_ListEntries *)
2974 odr_malloc (assoc->encode, sizeof(*ents));
2975 Z_DiagRecs *diagrecs_p = NULL;
2976 bend_scan_rr *bsrr = (bend_scan_rr *)
2977 odr_malloc (assoc->encode, sizeof(*bsrr));
2978 struct scan_entry *save_entries;
2980 yaz_log(log_requestdetail, "Got ScanRequest");
2982 apdu->which = Z_APDU_scanResponse;
2983 apdu->u.scanResponse = res;
2984 res->referenceId = req->referenceId;
2986 /* if step is absent, set it to 0 */
2987 res->stepSize = odr_intdup(assoc->encode, 0);
2989 *res->stepSize = *req->stepSize;
2991 res->scanStatus = scanStatus;
2992 res->numberOfEntriesReturned = numberOfEntriesReturned;
2993 res->positionOfTerm = 0;
2994 res->entries = ents;
2995 ents->num_entries = 0;
2996 ents->entries = NULL;
2997 ents->num_nonsurrogateDiagnostics = 0;
2998 ents->nonsurrogateDiagnostics = NULL;
2999 res->attributeSet = 0;
3002 if (req->databaseNames)
3005 for (i = 0; i < req->num_databaseNames; i++)
3006 yaz_log (log_requestdetail, "Database '%s'", req->databaseNames[i]);
3008 bsrr->scanClause = 0;
3010 bsrr->errstring = 0;
3011 bsrr->num_bases = req->num_databaseNames;
3012 bsrr->basenames = req->databaseNames;
3013 bsrr->num_entries = *req->numberOfTermsRequested;
3014 bsrr->term = req->termListAndStartPoint;
3015 bsrr->referenceId = req->referenceId;
3016 bsrr->stream = assoc->encode;
3017 bsrr->print = assoc->print;
3018 bsrr->step_size = res->stepSize;
3019 bsrr->setname = yaz_oi_get_string_oid(&req->otherInfo,
3020 yaz_oid_userinfo_scan_set, 1, 0);
3022 /* For YAZ 2.0 and earlier it was the backend handler that
3023 initialized entries (member display_term did not exist)
3024 YAZ 2.0 and later sets 'entries' and initialize all members
3025 including 'display_term'. If YAZ 2.0 or later sees that
3026 entries was modified - we assume that it is an old handler and
3027 that 'display_term' is _not_ set.
3029 if (bsrr->num_entries > 0)
3032 bsrr->entries = (struct scan_entry *)
3033 odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
3035 for (i = 0; i<bsrr->num_entries; i++)
3037 bsrr->entries[i].term = 0;
3038 bsrr->entries[i].occurrences = 0;
3039 bsrr->entries[i].errcode = 0;
3040 bsrr->entries[i].errstring = 0;
3041 bsrr->entries[i].display_term = 0;
3044 save_entries = bsrr->entries; /* save it so we can compare later */
3046 bsrr->attributeset = req->attributeSet;
3047 log_scan_term_level (log_requestdetail, req->termListAndStartPoint,
3048 bsrr->attributeset);
3049 bsrr->term_position = req->preferredPositionInResponse ?
3050 *req->preferredPositionInResponse : 1;
3052 ((int (*)(void *, bend_scan_rr *))
3053 (*assoc->init->bend_scan))(assoc->backend, bsrr);
3056 diagrecs_p = zget_DiagRecs(assoc->encode,
3057 bsrr->errcode, bsrr->errstring);
3061 Z_Entry **tab = (Z_Entry **)
3062 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
3064 if (bsrr->status == BEND_SCAN_PARTIAL)
3065 *scanStatus = Z_Scan_partial_5;
3067 *scanStatus = Z_Scan_success;
3068 ents->entries = tab;
3069 ents->num_entries = bsrr->num_entries;
3070 res->numberOfEntriesReturned = &ents->num_entries;
3071 res->positionOfTerm = &bsrr->term_position;
3072 for (i = 0; i < bsrr->num_entries; i++)
3078 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
3079 if (bsrr->entries[i].occurrences >= 0)
3081 e->which = Z_Entry_termInfo;
3082 e->u.termInfo = t = (Z_TermInfo *)
3083 odr_malloc(assoc->encode, sizeof(*t));
3084 t->suggestedAttributes = 0;
3086 if (save_entries == bsrr->entries &&
3087 bsrr->entries[i].display_term)
3089 /* the entries was _not_ set by the handler. So it's
3090 safe to test for new member display_term. It is
3093 t->displayTerm = odr_strdup(assoc->encode,
3094 bsrr->entries[i].display_term);
3096 t->alternativeTerm = 0;
3097 t->byAttributes = 0;
3098 t->otherTermInfo = 0;
3099 t->globalOccurrences = &bsrr->entries[i].occurrences;
3100 t->term = (Z_Term *)
3101 odr_malloc(assoc->encode, sizeof(*t->term));
3102 t->term->which = Z_Term_general;
3103 t->term->u.general = o =
3104 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
3105 o->buf = (unsigned char *)
3106 odr_malloc(assoc->encode, o->len = o->size =
3107 strlen(bsrr->entries[i].term));
3108 memcpy(o->buf, bsrr->entries[i].term, o->len);
3109 yaz_log(YLOG_DEBUG, " term #%d: '%s' (%d)", i,
3110 bsrr->entries[i].term, bsrr->entries[i].occurrences);
3114 Z_DiagRecs *drecs = zget_DiagRecs(assoc->encode,
3115 bsrr->entries[i].errcode,
3116 bsrr->entries[i].errstring);
3117 assert (drecs->num_diagRecs == 1);
3118 e->which = Z_Entry_surrogateDiagnostic;
3119 assert (drecs->diagRecs[0]);
3120 e->u.surrogateDiagnostic = drecs->diagRecs[0];
3126 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
3127 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
3132 WRBUF wr = wrbuf_alloc();
3133 wrbuf_printf(wr, "Scan ");
3134 for (i = 0 ; i < req->num_databaseNames; i++)
3137 wrbuf_printf(wr, "+");
3138 wrbuf_printf(wr, req->databaseNames[i]);
3141 wrbuf_printf(wr, " ");
3144 wr_diag(wr, bsrr->errcode, bsrr->errstring);
3146 wrbuf_printf(wr, "OK");
3148 wrbuf_printf(wr, " %d - %d+%d+%d",
3149 res->numberOfEntriesReturned ?
3150 *res->numberOfEntriesReturned : 0,
3151 (req->preferredPositionInResponse ?
3152 *req->preferredPositionInResponse : 1),
3153 *req->numberOfTermsRequested,
3154 (res->stepSize ? *res->stepSize : 1));
3157 wrbuf_printf(wr, "+%s", bsrr->setname);
3159 wrbuf_printf(wr, " ");
3160 yaz_scan_to_wrbuf(wr, req->termListAndStartPoint,
3161 bsrr->attributeset);
3162 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3168 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
3172 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
3173 Z_SortResponse *res = (Z_SortResponse *)
3174 odr_malloc (assoc->encode, sizeof(*res));
3175 bend_sort_rr *bsrr = (bend_sort_rr *)
3176 odr_malloc (assoc->encode, sizeof(*bsrr));
3178 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3180 yaz_log(log_requestdetail, "Got SortRequest.");
3182 bsrr->num_input_setnames = req->num_inputResultSetNames;
3183 for (i=0;i<req->num_inputResultSetNames;i++)
3184 yaz_log(log_requestdetail, "Input resultset: '%s'",
3185 req->inputResultSetNames[i]);
3186 bsrr->input_setnames = req->inputResultSetNames;
3187 bsrr->referenceId = req->referenceId;
3188 bsrr->output_setname = req->sortedResultSetName;
3189 yaz_log(log_requestdetail, "Output resultset: '%s'",
3190 req->sortedResultSetName);
3191 bsrr->sort_sequence = req->sortSequence;
3192 /*FIXME - dump those sequences too */
3193 bsrr->stream = assoc->encode;
3194 bsrr->print = assoc->print;
3196 bsrr->sort_status = Z_SortResponse_failure;
3198 bsrr->errstring = 0;
3200 (*assoc->init->bend_sort)(assoc->backend, bsrr);
3202 res->referenceId = bsrr->referenceId;
3203 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
3204 res->resultSetStatus = 0;
3207 Z_DiagRecs *dr = zget_DiagRecs(assoc->encode,
3208 bsrr->errcode, bsrr->errstring);
3209 res->diagnostics = dr->diagRecs;
3210 res->num_diagnostics = dr->num_diagRecs;
3214 res->num_diagnostics = 0;
3215 res->diagnostics = 0;
3217 res->resultCount = 0;
3220 apdu->which = Z_APDU_sortResponse;
3221 apdu->u.sortResponse = res;
3224 WRBUF wr = wrbuf_alloc();
3225 wrbuf_printf(wr, "Sort ");
3227 wrbuf_printf(wr, " ERROR %d", bsrr->errcode);
3229 wrbuf_printf(wr, "OK -");
3230 wrbuf_printf(wr, " (");
3231 for (i = 0; i<req->num_inputResultSetNames; i++)
3234 wrbuf_printf(wr, "+");
3235 wrbuf_printf(wr, req->inputResultSetNames[i]);
3237 wrbuf_printf(wr, ")->%s ",req->sortedResultSetName);
3239 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3245 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
3249 Z_DeleteResultSetRequest *req =
3250 reqb->apdu_request->u.deleteResultSetRequest;
3251 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
3252 odr_malloc (assoc->encode, sizeof(*res));
3253 bend_delete_rr *bdrr = (bend_delete_rr *)
3254 odr_malloc (assoc->encode, sizeof(*bdrr));
3255 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3257 yaz_log(log_requestdetail, "Got DeleteRequest.");
3259 bdrr->num_setnames = req->num_resultSetList;
3260 bdrr->setnames = req->resultSetList;
3261 for (i = 0; i<req->num_resultSetList; i++)
3262 yaz_log(log_requestdetail, "resultset: '%s'",
3263 req->resultSetList[i]);
3264 bdrr->stream = assoc->encode;
3265 bdrr->print = assoc->print;
3266 bdrr->function = *req->deleteFunction;
3267 bdrr->referenceId = req->referenceId;
3269 if (bdrr->num_setnames > 0)
3271 bdrr->statuses = (int*)
3272 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
3273 bdrr->num_setnames);
3274 for (i = 0; i < bdrr->num_setnames; i++)
3275 bdrr->statuses[i] = 0;
3277 (*assoc->init->bend_delete)(assoc->backend, bdrr);
3279 res->referenceId = req->referenceId;
3281 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
3283 res->deleteListStatuses = 0;
3284 if (bdrr->num_setnames > 0)
3287 res->deleteListStatuses = (Z_ListStatuses *)
3288 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
3289 res->deleteListStatuses->num = bdrr->num_setnames;
3290 res->deleteListStatuses->elements =
3292 odr_malloc (assoc->encode,
3293 sizeof(*res->deleteListStatuses->elements) *
3294 bdrr->num_setnames);
3295 for (i = 0; i<bdrr->num_setnames; i++)
3297 res->deleteListStatuses->elements[i] =
3299 odr_malloc (assoc->encode,
3300 sizeof(**res->deleteListStatuses->elements));
3301 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
3302 res->deleteListStatuses->elements[i]->id =
3303 odr_strdup (assoc->encode, bdrr->setnames[i]);
3306 res->numberNotDeleted = 0;
3307 res->bulkStatuses = 0;
3308 res->deleteMessage = 0;
3311 apdu->which = Z_APDU_deleteResultSetResponse;
3312 apdu->u.deleteResultSetResponse = res;
3315 WRBUF wr = wrbuf_alloc();
3316 wrbuf_printf(wr, "Delete ");
3317 if (bdrr->delete_status)
3318 wrbuf_printf(wr, "ERROR %d", bdrr->delete_status);
3320 wrbuf_printf(wr, "OK -");
3321 for (i = 0; i<req->num_resultSetList; i++)
3322 wrbuf_printf(wr, " %s ", req->resultSetList[i]);
3323 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3329 static void process_close(association *assoc, request *reqb)
3331 Z_Close *req = reqb->apdu_request->u.close;
3332 static char *reasons[] =
3339 "securityViolation",
3346 yaz_log(log_requestdetail, "Got Close, reason %s, message %s",
3347 reasons[*req->closeReason], req->diagnosticInformation ?
3348 req->diagnosticInformation : "NULL");
3349 if (assoc->version < 3) /* to make do_force respond with close */
3351 do_close_req(assoc, Z_Close_finished,
3352 "Association terminated by client", reqb);
3353 yaz_log(log_request,"Close OK");
3356 void save_referenceId (request *reqb, Z_ReferenceId *refid)
3360 reqb->len_refid = refid->len;
3361 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
3362 memcpy (reqb->refid, refid->buf, refid->len);
3366 reqb->len_refid = 0;
3371 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
3373 process_z_response (a, req, res);
3376 bend_request bend_request_mk (bend_association a)
3378 request *nreq = request_get (&a->outgoing);
3379 nreq->request_mem = nmem_create ();
3383 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
3388 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
3389 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
3390 id->len = id->size = req->len_refid;
3391 memcpy (id->buf, req->refid, req->len_refid);
3395 void bend_request_destroy (bend_request *req)
3397 nmem_destroy((*req)->request_mem);
3398 request_release(*req);
3402 int bend_backend_respond (bend_association a, bend_request req)
3406 r = process_z_request (a, req, &msg);
3408 yaz_log (YLOG_WARN, "%s", msg);
3412 void bend_request_setdata(bend_request r, void *p)
3417 void *bend_request_getdata(bend_request r)
3419 return r->clientData;
3422 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
3424 bend_segment_rr req;
3426 req.segment = reqb->apdu_request->u.segmentRequest;
3427 req.stream = assoc->encode;
3428 req.decode = assoc->decode;
3429 req.print = assoc->print;
3430 req.association = assoc;
3432 (*assoc->init->bend_segment)(assoc->backend, &req);
3437 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
3439 bend_esrequest_rr esrequest;
3440 const char *ext_name = "unknown";
3442 Z_ExtendedServicesRequest *req =
3443 reqb->apdu_request->u.extendedServicesRequest;
3444 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
3446 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
3448 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
3449 esrequest.stream = assoc->encode;
3450 esrequest.decode = assoc->decode;
3451 esrequest.print = assoc->print;
3452 esrequest.errcode = 0;
3453 esrequest.errstring = NULL;
3454 esrequest.request = reqb;
3455 esrequest.association = assoc;
3456 esrequest.taskPackage = 0;
3457 esrequest.referenceId = req->referenceId;
3460 if (esrequest.esr && esrequest.esr->taskSpecificParameters)
3462 switch(esrequest.esr->taskSpecificParameters->which)
3464 case Z_External_itemOrder:
3465 ext_name = "ItemOrder"; break;
3466 case Z_External_update:
3467 ext_name = "Update"; break;
3468 case Z_External_update0:
3469 ext_name = "Update0"; break;
3470 case Z_External_ESAdmin:
3471 ext_name = "Admin"; break;
3476 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
3478 /* If the response is being delayed, return NULL */
3479 if (esrequest.request == NULL)
3482 resp->referenceId = req->referenceId;
3484 if (esrequest.errcode == -1)
3486 /* Backend service indicates request will be processed */
3487 yaz_log(log_request, "Extended Service: %s (accepted)", ext_name);
3488 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
3490 else if (esrequest.errcode == 0)
3492 /* Backend service indicates request will be processed */
3493 yaz_log(log_request, "Extended Service: %s (done)", ext_name);
3494 *resp->operationStatus = Z_ExtendedServicesResponse_done;
3498 Z_DiagRecs *diagRecs =
3499 zget_DiagRecs(assoc->encode, esrequest.errcode,
3500 esrequest.errstring);
3501 /* Backend indicates error, request will not be processed */
3502 yaz_log(log_request, "Extended Service: %s (failed)", ext_name);
3503 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
3504 resp->num_diagnostics = diagRecs->num_diagRecs;
3505 resp->diagnostics = diagRecs->diagRecs;
3508 WRBUF wr = wrbuf_alloc();
3509 wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics);
3510 yaz_log(log_request, "EsRequest %s", wrbuf_cstr(wr) );
3515 /* Do something with the members of bend_extendedservice */
3516 if (esrequest.taskPackage)
3518 resp->taskPackage = z_ext_record_oid(
3519 assoc->encode, yaz_oid_recsyn_extended,
3520 (const char *) esrequest.taskPackage, -1
3523 yaz_log(YLOG_DEBUG,"Send the result apdu");
3527 int bend_assoc_is_alive(bend_association assoc)
3529 if (assoc->state == ASSOC_DEAD)
3530 return 0; /* already marked as dead. Don't check I/O chan anymore */
3532 return iochan_is_alive(assoc->client_chan);
3539 * indent-tabs-mode: nil
3541 * vim: shiftwidth=4 tabstop=8 expandtab