2 * Copyright (C) 1995-2007, Index Data ApS
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.117 2007-05-02 12:36:34 adam Exp $
9 * \brief Implements GFS session logic.
11 * Frontend server logic.
13 * This code receives incoming APDUs, and handles client requests by means
16 * Some of the code is getting quite involved, compared to simpler servers -
17 * primarily because it is asynchronous both in the communication with
18 * the user and the backend. We think the complexity will pay off in
19 * the form of greater flexibility when more asynchronous facilities
22 * Memory management has become somewhat involved. In the simple case, where
23 * only one PDU is pending at a time, it will simply reuse the same memory,
24 * once it has found its working size. When we enable multiple concurrent
25 * operations, perhaps even with multiple parallel calls to the backend, it
26 * will maintain a pool of buffers for encoding and decoding, trying to
27 * minimize memory allocation/deallocation during normal operation.
37 #include <sys/types.h>
45 #define S_ISREG(x) (x & _S_IFREG)
54 #include <libxml/parser.h>
55 #include <libxml/tree.h>
58 #include <yaz/yconfig.h>
59 #include <yaz/xmalloc.h>
60 #include <yaz/comstack.h>
64 #include <yaz/proto.h>
65 #include <yaz/oid_db.h>
67 #include <yaz/logrpn.h>
68 #include <yaz/querytowrbuf.h>
69 #include <yaz/statserv.h>
70 #include <yaz/diagbib1.h>
71 #include <yaz/charneg.h>
72 #include <yaz/otherinfo.h>
73 #include <yaz/yaz-util.h>
74 #include <yaz/pquery.h>
75 #include <yaz/oid_db.h>
78 #include <yaz/backend.h>
80 static void process_gdu_request(association *assoc, request *req);
81 static int process_z_request(association *assoc, request *req, char **msg);
82 void backend_response(IOCHAN i, int event);
83 static int process_gdu_response(association *assoc, request *req, Z_GDU *res);
84 static int process_z_response(association *assoc, request *req, Z_APDU *res);
85 static Z_APDU *process_initRequest(association *assoc, request *reqb);
86 static Z_External *init_diagnostics(ODR odr, int errcode,
87 const char *errstring);
88 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
90 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
91 bend_search_rr *bsrr, int *fd);
92 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
94 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
95 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
96 static void process_close(association *assoc, request *reqb);
97 void save_referenceId (request *reqb, Z_ReferenceId *refid);
98 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
100 static Z_APDU *process_segmentRequest (association *assoc, request *reqb);
102 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
104 /* dynamic logging levels */
105 static int logbits_set = 0;
106 static int log_session = 0; /* one-line logs for session */
107 static int log_sessiondetail = 0; /* more detailed stuff */
108 static int log_request = 0; /* one-line logs for requests */
109 static int log_requestdetail = 0; /* more detailed stuff */
111 /** get_logbits sets global loglevel bits */
112 static void get_logbits(void)
113 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
117 log_session = yaz_log_module_level("session");
118 log_sessiondetail = yaz_log_module_level("sessiondetail");
119 log_request = yaz_log_module_level("request");
120 log_requestdetail = yaz_log_module_level("requestdetail");
126 static void wr_diag(WRBUF w, int error, const char *addinfo)
128 wrbuf_printf(w, "ERROR %d+", error);
129 wrbuf_puts_replace_char(w, diagbib1_str(error), ' ', '_');
132 wrbuf_puts_replace_char(w, addinfo, ' ', '_');
140 * Create and initialize a new association-handle.
141 * channel : iochannel for the current line.
142 * link : communications channel.
143 * Returns: 0 or a new association handle.
145 association *create_association(IOCHAN channel, COMSTACK link,
146 const char *apdufile)
152 if (!(anew = (association *)xmalloc(sizeof(*anew))))
156 anew->last_control = 0;
157 anew->client_chan = channel;
158 anew->client_link = link;
159 anew->cs_get_mask = 0;
160 anew->cs_put_mask = 0;
161 anew->cs_accept_mask = 0;
162 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
163 !(anew->encode = odr_createmem(ODR_ENCODE)))
165 if (apdufile && *apdufile)
169 if (!(anew->print = odr_createmem(ODR_PRINT)))
171 if (*apdufile == '@')
173 odr_setprint(anew->print, yaz_log_file());
175 else if (*apdufile != '-')
178 sprintf(filename, "%.200s.%ld", apdufile, (long)getpid());
179 if (!(f = fopen(filename, "w")))
181 yaz_log(YLOG_WARN|YLOG_ERRNO, "%s", filename);
184 setvbuf(f, 0, _IONBF, 0);
185 odr_setprint(anew->print, f);
190 anew->input_buffer = 0;
191 anew->input_buffer_len = 0;
193 anew->state = ASSOC_NEW;
194 request_initq(&anew->incoming);
195 request_initq(&anew->outgoing);
196 anew->proto = cs_getproto(link);
202 * Free association and release resources.
204 void destroy_association(association *h)
206 statserv_options_block *cb = statserv_getcontrol();
210 odr_destroy(h->decode);
211 odr_destroy(h->encode);
213 odr_destroy(h->print);
215 xfree(h->input_buffer);
217 (*cb->bend_close)(h->backend);
218 while ((req = request_deq(&h->incoming)))
219 request_release(req);
220 while ((req = request_deq(&h->outgoing)))
221 request_release(req);
222 request_delq(&h->incoming);
223 request_delq(&h->outgoing);
225 xmalloc_trav("session closed");
226 if (cb && cb->one_shot)
232 static void do_close_req(association *a, int reason, char *message,
236 Z_Close *cls = zget_Close(a->encode);
238 /* Purge request queue */
239 while (request_deq(&a->incoming));
240 while (request_deq(&a->outgoing));
243 yaz_log(log_requestdetail, "Sending Close PDU, reason=%d, message=%s",
244 reason, message ? message : "none");
245 apdu.which = Z_APDU_close;
247 *cls->closeReason = reason;
248 cls->diagnosticInformation = message;
249 process_z_response(a, req, &apdu);
250 iochan_settimeout(a->client_chan, 20);
254 request_release(req);
255 yaz_log(log_requestdetail, "v2 client. No Close PDU");
256 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
259 a->state = ASSOC_DEAD;
262 static void do_close(association *a, int reason, char *message)
264 request *req = request_get(&a->outgoing);
265 do_close_req (a, reason, message, req);
269 int ir_read(IOCHAN h, int event)
271 association *assoc = (association *)iochan_getdata(h);
272 COMSTACK conn = assoc->client_link;
275 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
277 yaz_log(YLOG_DEBUG, "ir_session (input)");
278 /* We aren't speaking to this fellow */
279 if (assoc->state == ASSOC_DEAD)
281 yaz_log(log_sessiondetail, "Connection closed - end of session");
283 destroy_association(assoc);
287 assoc->cs_get_mask = EVENT_INPUT;
291 int res = cs_get(conn, &assoc->input_buffer,
292 &assoc->input_buffer_len);
293 if (res < 0 && cs_errno(conn) == CSBUFSIZE)
295 yaz_log(log_session, "Connection error: %s res=%d",
296 cs_errmsg(cs_errno(conn)), res);
297 req = request_get(&assoc->incoming); /* get a new request */
298 do_close_req(assoc, Z_Close_protocolError,
299 "Incoming package too large", req);
304 yaz_log(log_session, "Connection closed by client");
305 assoc->state = ASSOC_DEAD;
308 else if (res == 1) /* incomplete read - wait for more */
310 if (conn->io_pending & CS_WANT_WRITE)
311 assoc->cs_get_mask |= EVENT_OUTPUT;
312 iochan_setflag(h, assoc->cs_get_mask);
315 /* we got a complete PDU. Let's decode it */
316 yaz_log(YLOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
317 assoc->input_buffer[0] & 0xff,
318 assoc->input_buffer[1] & 0xff,
319 assoc->input_buffer[2] & 0xff);
320 req = request_get(&assoc->incoming); /* get a new request */
321 odr_reset(assoc->decode);
322 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
323 if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
325 yaz_log(YLOG_WARN, "ODR error on incoming PDU: %s [element %s] "
327 odr_errmsg(odr_geterror(assoc->decode)),
328 odr_getelement(assoc->decode),
329 (long) odr_offset(assoc->decode));
330 if (assoc->decode->error != OHTTP)
332 yaz_log(YLOG_WARN, "PDU dump:");
333 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
334 request_release(req);
335 do_close(assoc, Z_Close_protocolError, "Malformed package");
339 Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
340 assoc->state = ASSOC_DEAD;
341 process_gdu_response(assoc, req, p);
345 req->request_mem = odr_extract_mem(assoc->decode);
348 if (!z_GDU(assoc->print, &req->gdu_request, 0, 0))
349 yaz_log(YLOG_WARN, "ODR print error: %s",
350 odr_errmsg(odr_geterror(assoc->print)));
351 odr_reset(assoc->print);
353 request_enq(&assoc->incoming, req);
355 while (cs_more(conn));
361 * This is where PDUs from the client are read and the further
362 * processing is initiated. Flow of control moves down through the
363 * various process_* functions below, until the encoded result comes back up
364 * to the output handler in here.
366 * h : the I/O channel that has an outstanding event.
367 * event : the current outstanding event.
369 void ir_session(IOCHAN h, int event)
372 association *assoc = (association *)iochan_getdata(h);
373 COMSTACK conn = assoc->client_link;
376 assert(h && conn && assoc);
377 if (event == EVENT_TIMEOUT)
379 if (assoc->state != ASSOC_UP)
381 yaz_log(YLOG_DEBUG, "Final timeout - closing connection.");
382 /* do we need to lod this at all */
384 destroy_association(assoc);
389 yaz_log(log_sessiondetail,
390 "Session idle too long. Sending close.");
391 do_close(assoc, Z_Close_lackOfActivity, 0);
395 if (event & assoc->cs_accept_mask)
397 if (!cs_accept (conn))
399 yaz_log (YLOG_WARN, "accept failed");
400 destroy_association(assoc);
403 iochan_clearflag (h, EVENT_OUTPUT);
404 if (conn->io_pending)
405 { /* cs_accept didn't complete */
406 assoc->cs_accept_mask =
407 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
408 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
410 iochan_setflag (h, assoc->cs_accept_mask);
413 { /* cs_accept completed. Prepare for reading (cs_get) */
414 assoc->cs_accept_mask = 0;
415 assoc->cs_get_mask = EVENT_INPUT;
416 iochan_setflag (h, assoc->cs_get_mask);
420 if (event & assoc->cs_get_mask) /* input */
422 if (!ir_read(h, event))
424 req = request_head(&assoc->incoming);
425 if (req->state == REQUEST_IDLE)
427 request_deq(&assoc->incoming);
428 process_gdu_request(assoc, req);
431 if (event & assoc->cs_put_mask)
433 request *req = request_head(&assoc->outgoing);
435 assoc->cs_put_mask = 0;
436 yaz_log(YLOG_DEBUG, "ir_session (output)");
437 req->state = REQUEST_PENDING;
438 switch (res = cs_put(conn, req->response, req->len_response))
441 yaz_log(log_sessiondetail, "Connection closed by client");
443 destroy_association(assoc);
446 case 0: /* all sent - release the request structure */
447 yaz_log(YLOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
449 yaz_log(YLOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
452 nmem_destroy(req->request_mem);
453 request_deq(&assoc->outgoing);
454 request_release(req);
455 if (!request_head(&assoc->outgoing))
456 { /* restore mask for cs_get operation ... */
457 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
458 iochan_setflag(h, assoc->cs_get_mask);
459 if (assoc->state == ASSOC_DEAD)
460 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
464 assoc->cs_put_mask = EVENT_OUTPUT;
468 if (conn->io_pending & CS_WANT_WRITE)
469 assoc->cs_put_mask |= EVENT_OUTPUT;
470 if (conn->io_pending & CS_WANT_READ)
471 assoc->cs_put_mask |= EVENT_INPUT;
472 iochan_setflag(h, assoc->cs_put_mask);
475 if (event & EVENT_EXCEPT)
477 yaz_log(YLOG_WARN, "ir_session (exception)");
479 destroy_association(assoc);
484 static int process_z_request(association *assoc, request *req, char **msg);
487 static void assoc_init_reset(association *assoc)
490 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
492 assoc->init->stream = assoc->encode;
493 assoc->init->print = assoc->print;
494 assoc->init->auth = 0;
495 assoc->init->referenceId = 0;
496 assoc->init->implementation_version = 0;
497 assoc->init->implementation_id = 0;
498 assoc->init->implementation_name = 0;
499 assoc->init->query_charset = 0;
500 assoc->init->records_in_same_charset = 0;
501 assoc->init->bend_sort = NULL;
502 assoc->init->bend_search = NULL;
503 assoc->init->bend_present = NULL;
504 assoc->init->bend_esrequest = NULL;
505 assoc->init->bend_delete = NULL;
506 assoc->init->bend_scan = NULL;
507 assoc->init->bend_segment = NULL;
508 assoc->init->bend_fetch = NULL;
509 assoc->init->bend_explain = NULL;
510 assoc->init->bend_srw_scan = NULL;
511 assoc->init->bend_srw_update = NULL;
513 assoc->init->charneg_request = NULL;
514 assoc->init->charneg_response = NULL;
516 assoc->init->decode = assoc->decode;
517 assoc->init->peer_name =
518 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
520 yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name);
523 static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num, Z_SRW_PDU *sr)
525 statserv_options_block *cb = statserv_getcontrol();
528 const char *encoding = "UTF-8";
530 bend_initresult *binitres;
532 yaz_log(log_requestdetail, "srw_bend_init config=%s", cb->configname);
533 assoc_init_reset(assoc);
537 Z_IdAuthentication *auth = 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 = 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 int *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 = 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 const char *message = yaz_diag_srw_str(code);
741 len += strlen(message);
743 len += strlen(rr.errstring);
745 record->recordData_buf = odr_malloc(o, len);
747 sprintf(record->recordData_buf, "<diagnostic "
748 "xmlns=\"http://www.loc.gov/zing/srw/diagnostic/\">\n"
749 " <uri>info:srw/diagnostic/1/%d</uri>\n", code);
751 sprintf(record->recordData_buf + strlen(record->recordData_buf),
752 " <details>%s</details>\n", rr.errstring);
754 sprintf(record->recordData_buf + strlen(record->recordData_buf),
755 " <message>%s</message>\n", message);
756 sprintf(record->recordData_buf + strlen(record->recordData_buf),
758 record->recordData_len = strlen(record->recordData_buf);
759 record->recordPosition = odr_intdup(o, pos);
760 record->recordSchema = "info:srw/schema/1/diagnostics-v1.1";
763 else if (rr.len >= 0)
765 record->recordData_buf = rr.record;
766 record->recordData_len = rr.len;
767 record->recordPosition = odr_intdup(o, pos);
769 record->recordSchema = odr_strdup(o, rr.schema);
771 record->recordSchema = 0;
775 *addinfo = rr.errstring;
781 static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
782 Z_Query *query_result)
784 /* have a CQL query and CQL to PQF transform .. */
785 CQL_parser cp = cql_parser_create();
791 r = cql_parser_string(cp, cql);
794 /* CQL syntax error */
800 r = cql_transform_buf(ct,
801 cql_parser_result(cp),
802 rpn_buf, sizeof(rpn_buf)-1);
804 srw_errcode = cql_transform_error(ct, &add);
808 /* Syntax & transform OK. */
809 /* Convert PQF string to Z39.50 to RPN query struct */
810 YAZ_PQF_Parser pp = yaz_pqf_create();
811 Z_RPNQuery *rpnquery = yaz_pqf_parse(pp, odr, rpn_buf);
816 int code = yaz_pqf_error(pp, &pqf_msg, &off);
817 yaz_log(YLOG_WARN, "PQF Parser Error %s (code %d)",
823 query_result->which = Z_Query_type_1;
824 query_result->u.type_1 = rpnquery;
828 cql_parser_destroy(cp);
832 static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
833 Z_AttributesPlusTerm *result)
837 int srw_error = cql2pqf(odr, cql, ct, &query);
840 if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
841 return 10; /* bad query type */
842 rpn = query.u.type_1;
843 if (!rpn->RPNStructure)
844 return 10; /* must be structure */
845 if (rpn->RPNStructure->which != Z_RPNStructure_simple)
846 return 10; /* must be simple */
847 if (rpn->RPNStructure->u.simple->which != Z_Operand_APT)
848 return 10; /* must be attributes plus term node .. */
849 memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm,
854 static void srw_bend_search(association *assoc, request *req,
856 Z_SRW_searchRetrieveResponse *srw_res,
861 Z_SRW_searchRetrieveRequest *srw_req = sr->u.request;
864 yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest");
865 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
866 if (srw_res->num_diagnostics == 0 && assoc->init)
869 rr.setname = "default";
872 rr.basenames = &srw_req->database;
876 rr.srw_setnameIdleTime = 0;
877 rr.estimated_hit_count = 0;
878 rr.partial_resultset = 0;
879 rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
880 rr.query->u.type_1 = 0;
882 if (srw_req->query_type == Z_SRW_query_type_cql)
884 if (assoc->server && assoc->server->cql_transform)
886 int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
887 assoc->server->cql_transform,
891 yaz_add_srw_diagnostic(assoc->encode,
892 &srw_res->diagnostics,
893 &srw_res->num_diagnostics,
899 /* CQL query to backend. Wrap it - Z39.50 style */
900 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
901 ext->direct_reference = odr_getoidbystr(assoc->decode,
902 "1.2.840.10003.16.2");
903 ext->indirect_reference = 0;
905 ext->which = Z_External_CQL;
906 ext->u.cql = srw_req->query.cql;
908 rr.query->which = Z_Query_type_104;
909 rr.query->u.type_104 = ext;
912 else if (srw_req->query_type == Z_SRW_query_type_pqf)
914 Z_RPNQuery *RPNquery;
915 YAZ_PQF_Parser pqf_parser;
917 pqf_parser = yaz_pqf_create ();
919 RPNquery = yaz_pqf_parse (pqf_parser, assoc->decode,
925 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
926 yaz_log(log_requestdetail, "Parse error %d %s near offset %ld",
927 code, pqf_msg, (long) off);
928 srw_error = YAZ_SRW_QUERY_SYNTAX_ERROR;
931 rr.query->which = Z_Query_type_1;
932 rr.query->u.type_1 = RPNquery;
934 yaz_pqf_destroy (pqf_parser);
938 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
939 &srw_res->num_diagnostics,
940 YAZ_SRW_UNSUPP_QUERY_TYPE, 0);
942 if (rr.query->u.type_1)
944 rr.stream = assoc->encode;
945 rr.decode = assoc->decode;
946 rr.print = assoc->print;
948 if ( srw_req->sort.sortKeys )
949 rr.srw_sortKeys = odr_strdup(assoc->encode,
950 srw_req->sort.sortKeys );
951 rr.association = assoc;
957 yaz_log_zquery_level(log_requestdetail,rr.query);
959 (assoc->init->bend_search)(assoc->backend, &rr);
962 if (rr.errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
968 srw_error = yaz_diag_bib1_to_srw (rr.errcode);
969 yaz_add_srw_diagnostic(assoc->encode,
970 &srw_res->diagnostics,
971 &srw_res->num_diagnostics,
972 srw_error, rr.errstring);
977 int number = srw_req->maximumRecords ? *srw_req->maximumRecords : 0;
978 int start = srw_req->startRecord ? *srw_req->startRecord : 1;
980 yaz_log(log_requestdetail, "Request to pack %d+%d out of %d",
981 start, number, rr.hits);
983 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
986 srw_res->resultSetId =
987 odr_strdup(assoc->encode, rr.srw_setname );
988 srw_res->resultSetIdleTime =
989 odr_intdup(assoc->encode, *rr.srw_setnameIdleTime );
992 if ((rr.hits > 0 && start > rr.hits) || start < 1)
994 yaz_add_srw_diagnostic(
996 &srw_res->diagnostics, &srw_res->num_diagnostics,
997 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
1003 if (start + number > rr.hits)
1004 number = rr.hits - start + 1;
1006 /* Call bend_present if defined */
1007 if (assoc->init->bend_present)
1009 bend_present_rr *bprr = (bend_present_rr*)
1010 odr_malloc (assoc->decode, sizeof(*bprr));
1011 bprr->setname = "default";
1012 bprr->start = start;
1013 bprr->number = number;
1014 if (srw_req->recordSchema)
1016 bprr->comp = (Z_RecordComposition *) odr_malloc(assoc->decode,
1017 sizeof(*bprr->comp));
1018 bprr->comp->which = Z_RecordComp_simple;
1019 bprr->comp->u.simple = (Z_ElementSetNames *)
1020 odr_malloc(assoc->decode, sizeof(Z_ElementSetNames));
1021 bprr->comp->u.simple->which = Z_ElementSetNames_generic;
1022 bprr->comp->u.simple->u.generic = srw_req->recordSchema;
1028 bprr->stream = assoc->encode;
1029 bprr->referenceId = 0;
1030 bprr->print = assoc->print;
1031 bprr->request = req;
1032 bprr->association = assoc;
1034 bprr->errstring = NULL;
1035 (*assoc->init->bend_present)(assoc->backend, bprr);
1041 srw_error = yaz_diag_bib1_to_srw (bprr->errcode);
1042 yaz_add_srw_diagnostic(assoc->encode,
1043 &srw_res->diagnostics,
1044 &srw_res->num_diagnostics,
1045 srw_error, bprr->errstring);
1053 int packing = Z_SRW_recordPacking_string;
1054 if (srw_req->recordPacking)
1057 yaz_srw_str_to_pack(srw_req->recordPacking);
1059 packing = Z_SRW_recordPacking_string;
1061 srw_res->records = (Z_SRW_record *)
1062 odr_malloc(assoc->encode,
1063 number * sizeof(*srw_res->records));
1065 srw_res->extra_records = (Z_SRW_extra_record **)
1066 odr_malloc(assoc->encode,
1067 number*sizeof(*srw_res->extra_records));
1069 for (i = 0; i<number; i++)
1072 const char *addinfo = 0;
1074 srw_res->records[j].recordPacking = packing;
1075 srw_res->records[j].recordData_buf = 0;
1076 srw_res->extra_records[j] = 0;
1077 yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
1078 errcode = srw_bend_fetch(assoc, i+start, srw_req,
1079 srw_res->records + j,
1083 yaz_add_srw_diagnostic(assoc->encode,
1084 &srw_res->diagnostics,
1085 &srw_res->num_diagnostics,
1086 yaz_diag_bib1_to_srw (errcode),
1091 if (srw_res->records[j].recordData_buf)
1094 srw_res->num_records = j;
1096 srw_res->records = 0;
1099 if (rr.estimated_hit_count || rr.partial_resultset)
1101 yaz_add_srw_diagnostic(
1103 &srw_res->diagnostics,
1104 &srw_res->num_diagnostics,
1105 YAZ_SRW_RESULT_SET_CREATED_WITH_VALID_PARTIAL_RESULTS_AVAILABLE,
1113 const char *querystr = "?";
1114 const char *querytype = "?";
1115 WRBUF wr = wrbuf_alloc();
1117 switch (srw_req->query_type)
1119 case Z_SRW_query_type_cql:
1121 querystr = srw_req->query.cql;
1123 case Z_SRW_query_type_pqf:
1125 querystr = srw_req->query.pqf;
1128 wrbuf_printf(wr, "SRWSearch ");
1129 wrbuf_printf(wr, srw_req->database);
1130 wrbuf_printf(wr, " ");
1131 if (srw_res->num_diagnostics)
1132 wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri);
1133 else if (*http_code != 200)
1134 wrbuf_printf(wr, "ERROR info:http/%d", *http_code);
1135 else if (srw_res->numberOfRecords)
1137 wrbuf_printf(wr, "OK %d",
1138 (srw_res->numberOfRecords ?
1139 *srw_res->numberOfRecords : 0));
1141 wrbuf_printf(wr, " %s %d+%d",
1142 (srw_res->resultSetId ?
1143 srw_res->resultSetId : "-"),
1144 (srw_req->startRecord ? *srw_req->startRecord : 1),
1145 srw_res->num_records);
1146 yaz_log(log_request, "%s %s: %s", wrbuf_cstr(wr), querytype, querystr);
1151 static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
1154 xmlNodePtr ptr = rr->server_node_ptr;
1157 for (ptr = ptr->children; ptr; ptr = ptr->next)
1159 if (ptr->type != XML_ELEMENT_NODE)
1161 if (!strcmp((const char *) ptr->name, "explain"))
1164 xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
1168 ptr = xmlCopyNode(ptr, 1);
1170 xmlDocSetRootElement(doc, ptr);
1172 xmlDocDumpMemory(doc, &buf_out, &len);
1173 content = (char*) odr_malloc(rr->stream, 1+len);
1174 memcpy(content, buf_out, len);
1175 content[len] = '\0';
1179 rr->explain_buf = content;
1187 static void srw_bend_explain(association *assoc, request *req,
1189 Z_SRW_explainResponse *srw_res,
1192 Z_SRW_explainRequest *srw_req = sr->u.explain_request;
1193 yaz_log(log_requestdetail, "Got SRW ExplainRequest");
1195 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1200 rr.stream = assoc->encode;
1201 rr.decode = assoc->decode;
1202 rr.print = assoc->print;
1204 rr.database = srw_req->database;
1206 rr.server_node_ptr = assoc->server->server_node_ptr;
1208 rr.server_node_ptr = 0;
1209 rr.schema = "http://explain.z3950.org/dtd/2.0/";
1210 if (assoc->init->bend_explain)
1211 (*assoc->init->bend_explain)(assoc->backend, &rr);
1213 srw_bend_explain_default(assoc->backend, &rr);
1217 int packing = Z_SRW_recordPacking_string;
1218 if (srw_req->recordPacking)
1221 yaz_srw_str_to_pack(srw_req->recordPacking);
1223 packing = Z_SRW_recordPacking_string;
1225 srw_res->record.recordSchema = rr.schema;
1226 srw_res->record.recordPacking = packing;
1227 srw_res->record.recordData_buf = rr.explain_buf;
1228 srw_res->record.recordData_len = strlen(rr.explain_buf);
1229 srw_res->record.recordPosition = 0;
1235 static void srw_bend_scan(association *assoc, request *req,
1237 Z_SRW_scanResponse *srw_res,
1240 Z_SRW_scanRequest *srw_req = sr->u.scan_request;
1241 yaz_log(log_requestdetail, "Got SRW ScanRequest");
1244 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1245 if (srw_res->num_diagnostics == 0 && assoc->init)
1247 struct scan_entry *save_entries;
1249 bend_scan_rr *bsrr = (bend_scan_rr *)
1250 odr_malloc (assoc->encode, sizeof(*bsrr));
1251 bsrr->num_bases = 1;
1252 bsrr->basenames = &srw_req->database;
1254 bsrr->num_entries = srw_req->maximumTerms ?
1255 *srw_req->maximumTerms : 10;
1256 bsrr->term_position = srw_req->responsePosition ?
1257 *srw_req->responsePosition : 1;
1260 bsrr->errstring = 0;
1261 bsrr->referenceId = 0;
1262 bsrr->stream = assoc->encode;
1263 bsrr->print = assoc->print;
1264 bsrr->step_size = odr_intdup(assoc->decode, 0);
1267 if (bsrr->num_entries > 0)
1270 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
1272 for (i = 0; i<bsrr->num_entries; i++)
1274 bsrr->entries[i].term = 0;
1275 bsrr->entries[i].occurrences = 0;
1276 bsrr->entries[i].errcode = 0;
1277 bsrr->entries[i].errstring = 0;
1278 bsrr->entries[i].display_term = 0;
1281 save_entries = bsrr->entries; /* save it so we can compare later */
1283 if (srw_req->query_type == Z_SRW_query_type_pqf &&
1284 assoc->init->bend_scan)
1286 YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
1288 bsrr->term = yaz_pqf_scan(pqf_parser, assoc->decode,
1289 &bsrr->attributeset,
1290 srw_req->scanClause.pqf);
1291 yaz_pqf_destroy(pqf_parser);
1292 bsrr->scanClause = 0;
1293 ((int (*)(void *, bend_scan_rr *))
1294 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1296 else if (srw_req->query_type == Z_SRW_query_type_cql
1297 && assoc->init->bend_scan && assoc->server
1298 && assoc->server->cql_transform)
1301 bsrr->scanClause = 0;
1302 bsrr->attributeset = 0;
1303 bsrr->term = odr_malloc(assoc->decode, sizeof(*bsrr->term));
1304 srw_error = cql2pqf_scan(assoc->encode,
1305 srw_req->scanClause.cql,
1306 assoc->server->cql_transform,
1309 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1310 &srw_res->num_diagnostics,
1314 ((int (*)(void *, bend_scan_rr *))
1315 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1318 else if (srw_req->query_type == Z_SRW_query_type_cql
1319 && assoc->init->bend_srw_scan)
1322 bsrr->attributeset = 0;
1323 bsrr->scanClause = srw_req->scanClause.cql;
1324 ((int (*)(void *, bend_scan_rr *))
1325 (*assoc->init->bend_srw_scan))(assoc->backend, bsrr);
1329 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1330 &srw_res->num_diagnostics,
1331 YAZ_SRW_UNSUPP_OPERATION, "scan");
1336 if (bsrr->errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
1341 srw_error = yaz_diag_bib1_to_srw (bsrr->errcode);
1343 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1344 &srw_res->num_diagnostics,
1345 srw_error, bsrr->errstring);
1347 else if (srw_res->num_diagnostics == 0 && bsrr->num_entries)
1350 srw_res->terms = (Z_SRW_scanTerm*)
1351 odr_malloc(assoc->encode, sizeof(*srw_res->terms) *
1354 srw_res->num_terms = bsrr->num_entries;
1355 for (i = 0; i<bsrr->num_entries; i++)
1357 Z_SRW_scanTerm *t = srw_res->terms + i;
1358 t->value = odr_strdup(assoc->encode, bsrr->entries[i].term);
1359 t->numberOfRecords =
1360 odr_intdup(assoc->encode, bsrr->entries[i].occurrences);
1362 if (save_entries == bsrr->entries &&
1363 bsrr->entries[i].display_term)
1365 /* the entries was _not_ set by the handler. So it's
1366 safe to test for new member display_term. It is
1369 t->displayTerm = odr_strdup(assoc->encode,
1370 bsrr->entries[i].display_term);
1378 WRBUF wr = wrbuf_alloc();
1379 const char *querytype = 0;
1380 const char *querystr = 0;
1382 switch(srw_req->query_type)
1384 case Z_SRW_query_type_pqf:
1386 querystr = srw_req->scanClause.pqf;
1388 case Z_SRW_query_type_cql:
1390 querystr = srw_req->scanClause.cql;
1393 querytype = "UNKNOWN";
1397 wrbuf_printf(wr, "SRWScan ");
1398 wrbuf_printf(wr, srw_req->database);
1399 wrbuf_printf(wr, " ");
1401 if (srw_res->num_diagnostics)
1402 wrbuf_printf(wr, "ERROR %s - ", srw_res->diagnostics[0].uri);
1403 else if (srw_res->num_terms)
1404 wrbuf_printf(wr, "OK %d - ", srw_res->num_terms);
1406 wrbuf_printf(wr, "OK - - ");
1408 wrbuf_printf(wr, "%d+%d+0 ",
1409 (srw_req->responsePosition ?
1410 *srw_req->responsePosition : 1),
1411 (srw_req->maximumTerms ?
1412 *srw_req->maximumTerms : 1));
1413 /* there is no step size in SRU/W ??? */
1414 wrbuf_printf(wr, "%s: %s ", querytype, querystr);
1415 yaz_log(log_request, "%s ", wrbuf_cstr(wr) );
1421 static void srw_bend_update(association *assoc, request *req,
1423 Z_SRW_updateResponse *srw_res,
1426 Z_SRW_updateRequest *srw_req = sr->u.update_request;
1427 yaz_log(log_session, "SRWUpdate action=%s", srw_req->operation);
1428 yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics );
1430 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1434 Z_SRW_extra_record *extra = srw_req->extra_record;
1436 rr.stream = assoc->encode;
1437 rr.print = assoc->print;
1439 rr.basenames = &srw_req->database;
1440 rr.operation = srw_req->operation;
1441 rr.operation_status = "failed";
1443 rr.record_versions = 0;
1444 rr.num_versions = 0;
1445 rr.record_packing = "string";
1446 rr.record_schema = 0;
1448 rr.extra_record_data = 0;
1449 rr.extra_request_data = 0;
1450 rr.extra_response_data = 0;
1456 if (rr.operation == 0)
1458 yaz_add_sru_update_diagnostic(
1459 assoc->encode, &srw_res->diagnostics,
1460 &srw_res->num_diagnostics,
1461 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1465 yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] );
1466 yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation );
1467 if (!strcmp( rr.operation, "delete"))
1469 if (srw_req->record && !srw_req->record->recordSchema)
1471 rr.record_schema = odr_strdup(
1473 srw_req->record->recordSchema);
1475 if (srw_req->record)
1477 rr.record_data = odr_strdupn(
1479 srw_req->record->recordData_buf,
1480 srw_req->record->recordData_len );
1482 if (extra && extra->extraRecordData_len)
1484 rr.extra_record_data = odr_strdupn(
1486 extra->extraRecordData_buf,
1487 extra->extraRecordData_len );
1489 if (srw_req->recordId)
1490 rr.record_id = srw_req->recordId;
1491 else if (extra && extra->recordIdentifier)
1492 rr.record_id = extra->recordIdentifier;
1494 else if (!strcmp(rr.operation, "replace"))
1496 if (srw_req->recordId)
1497 rr.record_id = srw_req->recordId;
1498 else if (extra && extra->recordIdentifier)
1499 rr.record_id = extra->recordIdentifier;
1502 yaz_add_sru_update_diagnostic(
1503 assoc->encode, &srw_res->diagnostics,
1504 &srw_res->num_diagnostics,
1505 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1506 "recordIdentifier");
1508 if (!srw_req->record)
1510 yaz_add_sru_update_diagnostic(
1511 assoc->encode, &srw_res->diagnostics,
1512 &srw_res->num_diagnostics,
1513 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1518 if (srw_req->record->recordSchema)
1519 rr.record_schema = odr_strdup(
1520 assoc->encode, srw_req->record->recordSchema);
1521 if (srw_req->record->recordData_len )
1523 rr.record_data = odr_strdupn(assoc->encode,
1524 srw_req->record->recordData_buf,
1525 srw_req->record->recordData_len );
1529 yaz_add_sru_update_diagnostic(
1530 assoc->encode, &srw_res->diagnostics,
1531 &srw_res->num_diagnostics,
1532 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1536 if (extra && extra->extraRecordData_len)
1538 rr.extra_record_data = odr_strdupn(
1540 extra->extraRecordData_buf,
1541 extra->extraRecordData_len );
1544 else if (!strcmp(rr.operation, "insert"))
1546 if (srw_req->recordId)
1547 rr.record_id = srw_req->recordId;
1549 rr.record_id = extra->recordIdentifier;
1551 if (srw_req->record)
1553 if (srw_req->record->recordSchema)
1554 rr.record_schema = odr_strdup(
1555 assoc->encode, srw_req->record->recordSchema);
1557 if (srw_req->record->recordData_len)
1558 rr.record_data = odr_strdupn(
1560 srw_req->record->recordData_buf,
1561 srw_req->record->recordData_len );
1563 if (extra && extra->extraRecordData_len)
1565 rr.extra_record_data = odr_strdupn(
1567 extra->extraRecordData_buf,
1568 extra->extraRecordData_len );
1572 yaz_add_sru_update_diagnostic(assoc->encode, &srw_res->diagnostics,
1573 &srw_res->num_diagnostics,
1574 YAZ_SRU_UPDATE_INVALID_ACTION,
1577 if (srw_req->record)
1579 const char *pack_str =
1580 yaz_srw_pack_to_str(srw_req->record->recordPacking);
1582 rr.record_packing = odr_strdup(assoc->encode, pack_str);
1585 if (srw_req->num_recordVersions)
1587 rr.record_versions = srw_req->recordVersions;
1588 rr.num_versions = srw_req->num_recordVersions;
1590 if (srw_req->extraRequestData_len)
1592 rr.extra_request_data = odr_strdupn(assoc->encode,
1593 srw_req->extraRequestData_buf,
1594 srw_req->extraRequestData_len );
1596 if (srw_res->num_diagnostics == 0)
1598 if ( assoc->init->bend_srw_update)
1599 (*assoc->init->bend_srw_update)(assoc->backend, &rr);
1601 yaz_add_sru_update_diagnostic(
1602 assoc->encode, &srw_res->diagnostics,
1603 &srw_res->num_diagnostics,
1604 YAZ_SRU_UPDATE_UNSPECIFIED_DATABASE_ERROR,
1605 "No Update backend handler");
1609 yaz_add_srw_diagnostic_uri(assoc->encode,
1610 &srw_res->diagnostics,
1611 &srw_res->num_diagnostics,
1615 srw_res->recordId = rr.record_id;
1616 srw_res->operationStatus = rr.operation_status;
1617 srw_res->recordVersions = rr.record_versions;
1618 srw_res->num_recordVersions = rr.num_versions;
1619 if (srw_res->extraResponseData_len)
1621 srw_res->extraResponseData_buf = rr.extra_response_data;
1622 srw_res->extraResponseData_len = strlen(rr.extra_response_data);
1624 if (srw_res->num_diagnostics == 0 && rr.record_data)
1626 srw_res->record = yaz_srw_get_record(assoc->encode);
1627 srw_res->record->recordSchema = rr.record_schema;
1628 if (rr.record_packing)
1630 int pack = yaz_srw_str_to_pack(rr.record_packing);
1634 pack = Z_SRW_recordPacking_string;
1635 yaz_log(YLOG_WARN, "Back packing %s from backend",
1638 srw_res->record->recordPacking = pack;
1640 srw_res->record->recordData_buf = rr.record_data;
1641 srw_res->record->recordData_len = strlen(rr.record_data);
1642 if (rr.extra_record_data)
1644 Z_SRW_extra_record *ex =
1645 yaz_srw_get_extra_record(assoc->encode);
1646 srw_res->extra_record = ex;
1647 ex->extraRecordData_buf = rr.extra_record_data;
1648 ex->extraRecordData_len = strlen(rr.extra_record_data);
1654 /* check if path is OK (1); BAD (0) */
1655 static int check_path(const char *path)
1659 if (strstr(path, ".."))
1664 static char *read_file(const char *fname, ODR o, int *sz)
1667 FILE *inf = fopen(fname, "rb");
1671 fseek(inf, 0L, SEEK_END);
1674 buf = odr_malloc(o, *sz);
1675 fread(buf, 1, *sz, inf);
1680 static void process_http_request(association *assoc, request *req)
1682 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
1683 ODR o = assoc->encode;
1684 int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */
1686 Z_SOAP *soap_package = 0;
1689 Z_HTTP_Response *hres = 0;
1691 const char *stylesheet = 0; /* for now .. set later */
1692 Z_SRW_diagnostic *diagnostic = 0;
1693 int num_diagnostic = 0;
1694 const char *host = z_HTTP_header_lookup(hreq->headers, "Host");
1696 if (!control_association(assoc, host, 0))
1698 p = z_get_HTTP_Response(o, 404);
1701 if (r == 2 && assoc->server && assoc->server->docpath
1702 && hreq->path[0] == '/'
1704 /* check if path is a proper prefix of documentroot */
1705 strncmp(hreq->path+1, assoc->server->docpath,
1706 strlen(assoc->server->docpath))
1709 if (!check_path(hreq->path))
1711 yaz_log(YLOG_LOG, "File %s access forbidden", hreq->path+1);
1712 p = z_get_HTTP_Response(o, 404);
1716 int content_size = 0;
1717 char *content_buf = read_file(hreq->path+1, o, &content_size);
1720 yaz_log(YLOG_LOG, "File %s not found", hreq->path+1);
1721 p = z_get_HTTP_Response(o, 404);
1725 const char *ctype = 0;
1726 yaz_mime_types types = yaz_mime_types_create();
1728 yaz_mime_types_add(types, "xsl", "application/xml");
1729 yaz_mime_types_add(types, "xml", "application/xml");
1730 yaz_mime_types_add(types, "css", "text/css");
1731 yaz_mime_types_add(types, "html", "text/html");
1732 yaz_mime_types_add(types, "htm", "text/html");
1733 yaz_mime_types_add(types, "txt", "text/plain");
1734 yaz_mime_types_add(types, "js", "application/x-javascript");
1736 yaz_mime_types_add(types, "gif", "image/gif");
1737 yaz_mime_types_add(types, "png", "image/png");
1738 yaz_mime_types_add(types, "jpg", "image/jpeg");
1739 yaz_mime_types_add(types, "jpeg", "image/jpeg");
1741 ctype = yaz_mime_lookup_fname(types, hreq->path);
1744 yaz_log(YLOG_LOG, "No mime type for %s", hreq->path+1);
1745 p = z_get_HTTP_Response(o, 404);
1749 p = z_get_HTTP_Response(o, 200);
1750 hres = p->u.HTTP_Response;
1751 hres->content_buf = content_buf;
1752 hres->content_len = content_size;
1753 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1755 yaz_mime_types_destroy(types);
1763 r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset);
1764 yaz_log(YLOG_DEBUG, "yaz_srw_decode returned %d", r);
1766 if (r == 2) /* not taken */
1768 r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset,
1769 &diagnostic, &num_diagnostic);
1770 yaz_log(YLOG_DEBUG, "yaz_sru_decode returned %d", r);
1772 if (r == 0) /* decode SRW/SRU OK .. */
1774 int http_code = 200;
1775 if (sr->which == Z_SRW_searchRetrieve_request)
1778 yaz_srw_get(assoc->encode, Z_SRW_searchRetrieve_response);
1780 stylesheet = sr->u.request->stylesheet;
1783 res->u.response->diagnostics = diagnostic;
1784 res->u.response->num_diagnostics = num_diagnostic;
1788 srw_bend_search(assoc, req, sr, res->u.response,
1791 if (http_code == 200)
1792 soap_package->u.generic->p = res;
1794 else if (sr->which == Z_SRW_explain_request)
1796 Z_SRW_PDU *res = yaz_srw_get(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(o, Z_SRW_scan_response);
1811 stylesheet = sr->u.scan_request->stylesheet;
1814 res->u.scan_response->diagnostics = diagnostic;
1815 res->u.scan_response->num_diagnostics = num_diagnostic;
1817 srw_bend_scan(assoc, req, sr,
1818 res->u.scan_response, &http_code);
1819 if (http_code == 200)
1820 soap_package->u.generic->p = res;
1822 else if (sr->which == Z_SRW_update_request)
1824 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_update_response);
1825 yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest");
1828 res->u.update_response->diagnostics = diagnostic;
1829 res->u.update_response->num_diagnostics = num_diagnostic;
1831 yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics );
1832 srw_bend_update(assoc, req, sr,
1833 res->u.update_response, &http_code);
1834 if (http_code == 200)
1835 soap_package->u.generic->p = res;
1839 yaz_log(log_request, "SOAP ERROR");
1840 /* FIXME - what error, what query */
1842 z_soap_error(assoc->encode, soap_package,
1843 "SOAP-ENV:Client", "Bad method", 0);
1845 if (http_code == 200 || http_code == 500)
1847 static Z_SOAP_Handler soap_handlers[4] = {
1849 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
1850 {YAZ_XMLNS_SRU_v1_0, 0, (Z_SOAP_fun) yaz_srw_codec},
1851 {YAZ_XMLNS_UPDATE_v0_9, 0, (Z_SOAP_fun) yaz_ucp_codec},
1857 p = z_get_HTTP_Response(o, 200);
1858 hres = p->u.HTTP_Response;
1860 if (!stylesheet && assoc->server)
1861 stylesheet = assoc->server->stylesheet;
1863 /* empty stylesheet means NO stylesheet */
1864 if (stylesheet && *stylesheet == '\0')
1867 ret = z_soap_codec_enc_xsl(assoc->encode, &soap_package,
1868 &hres->content_buf, &hres->content_len,
1869 soap_handlers, charset, stylesheet);
1870 hres->code = http_code;
1872 strcpy(ctype, "text/xml");
1875 strcat(ctype, "; charset=");
1876 strcat(ctype, charset);
1878 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1881 p = z_get_HTTP_Response(o, http_code);
1885 p = z_get_HTTP_Response(o, 500);
1886 hres = p->u.HTTP_Response;
1887 if (!strcmp(hreq->version, "1.0"))
1889 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1890 if (v && !strcmp(v, "Keep-Alive"))
1894 hres->version = "1.0";
1898 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1899 if (v && !strcmp(v, "close"))
1903 hres->version = "1.1";
1907 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1908 assoc->state = ASSOC_DEAD;
1909 assoc->cs_get_mask = 0;
1914 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1916 if (alive && isdigit(*(const unsigned char *) alive))
1920 if (t < 0 || t > 3600)
1922 iochan_settimeout(assoc->client_chan,t);
1923 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1925 process_gdu_response(assoc, req, p);
1928 static void process_gdu_request(association *assoc, request *req)
1930 if (req->gdu_request->which == Z_GDU_Z3950)
1933 req->apdu_request = req->gdu_request->u.z3950;
1934 if (process_z_request(assoc, req, &msg) < 0)
1935 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1937 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1938 process_http_request(assoc, req);
1941 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1946 * Initiate request processing.
1948 static int process_z_request(association *assoc, request *req, char **msg)
1954 *msg = "Unknown Error";
1955 assert(req && req->state == REQUEST_IDLE);
1956 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1958 *msg = "Missing InitRequest";
1961 switch (req->apdu_request->which)
1963 case Z_APDU_initRequest:
1964 res = process_initRequest(assoc, req); break;
1965 case Z_APDU_searchRequest:
1966 res = process_searchRequest(assoc, req, &fd); break;
1967 case Z_APDU_presentRequest:
1968 res = process_presentRequest(assoc, req, &fd); break;
1969 case Z_APDU_scanRequest:
1970 if (assoc->init->bend_scan)
1971 res = process_scanRequest(assoc, req, &fd);
1974 *msg = "Cannot handle Scan APDU";
1978 case Z_APDU_extendedServicesRequest:
1979 if (assoc->init->bend_esrequest)
1980 res = process_ESRequest(assoc, req, &fd);
1983 *msg = "Cannot handle Extended Services APDU";
1987 case Z_APDU_sortRequest:
1988 if (assoc->init->bend_sort)
1989 res = process_sortRequest(assoc, req, &fd);
1992 *msg = "Cannot handle Sort APDU";
1997 process_close(assoc, req);
1999 case Z_APDU_deleteResultSetRequest:
2000 if (assoc->init->bend_delete)
2001 res = process_deleteRequest(assoc, req, &fd);
2004 *msg = "Cannot handle Delete APDU";
2008 case Z_APDU_segmentRequest:
2009 if (assoc->init->bend_segment)
2011 res = process_segmentRequest (assoc, req);
2015 *msg = "Cannot handle Segment APDU";
2019 case Z_APDU_triggerResourceControlRequest:
2022 *msg = "Bad APDU received";
2027 yaz_log(YLOG_DEBUG, " result immediately available");
2028 retval = process_z_response(assoc, req, res);
2032 yaz_log(YLOG_DEBUG, " result unavailble");
2035 else /* no result yet - one will be provided later */
2039 /* Set up an I/O handler for the fd supplied by the backend */
2041 yaz_log(YLOG_DEBUG, " establishing handler for result");
2042 req->state = REQUEST_PENDING;
2043 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT, 0)))
2045 iochan_setdata(chan, assoc);
2052 * Handle message from the backend.
2054 void backend_response(IOCHAN i, int event)
2056 association *assoc = (association *)iochan_getdata(i);
2057 request *req = request_head(&assoc->incoming);
2061 yaz_log(YLOG_DEBUG, "backend_response");
2062 assert(assoc && req && req->state != REQUEST_IDLE);
2063 /* determine what it is we're waiting for */
2064 switch (req->apdu_request->which)
2066 case Z_APDU_searchRequest:
2067 res = response_searchRequest(assoc, req, 0, &fd); break;
2069 case Z_APDU_presentRequest:
2070 res = response_presentRequest(assoc, req, 0, &fd); break;
2071 case Z_APDU_scanRequest:
2072 res = response_scanRequest(assoc, req, 0, &fd); break;
2075 yaz_log(YLOG_FATAL, "Serious programmer's lapse or bug");
2078 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
2080 yaz_log(YLOG_WARN, "Fatal error when talking to backend");
2081 do_close(assoc, Z_Close_systemProblem, 0);
2085 else if (!res) /* no result yet - try again later */
2087 yaz_log(YLOG_DEBUG, " no result yet");
2088 iochan_setfd(i, fd); /* in case fd has changed */
2093 * Encode response, and transfer the request structure to the outgoing queue.
2095 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
2097 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
2101 if (!z_GDU(assoc->print, &res, 0, 0))
2102 yaz_log(YLOG_WARN, "ODR print error: %s",
2103 odr_errmsg(odr_geterror(assoc->print)));
2104 odr_reset(assoc->print);
2106 if (!z_GDU(assoc->encode, &res, 0, 0))
2108 yaz_log(YLOG_WARN, "ODR error when encoding PDU: %s [element %s]",
2109 odr_errmsg(odr_geterror(assoc->decode)),
2110 odr_getelement(assoc->decode));
2113 req->response = odr_getbuf(assoc->encode, &req->len_response,
2114 &req->size_response);
2115 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
2116 odr_reset(assoc->encode);
2117 req->state = REQUEST_IDLE;
2118 request_enq(&assoc->outgoing, req);
2119 /* turn the work over to the ir_session handler */
2120 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
2121 assoc->cs_put_mask = EVENT_OUTPUT;
2122 /* Is there more work to be done? give that to the input handler too */
2125 req = request_head(&assoc->incoming);
2126 if (req && req->state == REQUEST_IDLE)
2128 request_deq(&assoc->incoming);
2129 process_gdu_request(assoc, req);
2138 * Encode response, and transfer the request structure to the outgoing queue.
2140 static int process_z_response(association *assoc, request *req, Z_APDU *res)
2142 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
2143 gres->which = Z_GDU_Z3950;
2144 gres->u.z3950 = res;
2146 return process_gdu_response(assoc, req, gres);
2149 static char *get_vhost(Z_OtherInformation *otherInfo)
2151 return yaz_oi_get_string_oid(&otherInfo, yaz_oid_userinfo_proxy, 1, 0);
2155 * Handle init request.
2156 * At the moment, we don't check the options
2157 * anywhere else in the code - we just try not to do anything that would
2158 * break a naive client. We'll toss 'em into the association block when
2159 * we need them there.
2161 static Z_APDU *process_initRequest(association *assoc, request *reqb)
2163 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
2164 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
2165 Z_InitResponse *resp = apdu->u.initResponse;
2166 bend_initresult *binitres;
2169 statserv_options_block *cb = 0; /* by default no control for backend */
2171 if (control_association(assoc, get_vhost(req->otherInfo), 1))
2172 cb = statserv_getcontrol(); /* got control block for backend */
2174 if (cb && assoc->backend)
2175 (*cb->bend_close)(assoc->backend);
2177 yaz_log(log_requestdetail, "Got initRequest");
2178 if (req->implementationId)
2179 yaz_log(log_requestdetail, "Id: %s",
2180 req->implementationId);
2181 if (req->implementationName)
2182 yaz_log(log_requestdetail, "Name: %s",
2183 req->implementationName);
2184 if (req->implementationVersion)
2185 yaz_log(log_requestdetail, "Version: %s",
2186 req->implementationVersion);
2188 assoc_init_reset(assoc);
2190 assoc->init->auth = req->idAuthentication;
2191 assoc->init->referenceId = req->referenceId;
2193 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2195 Z_CharSetandLanguageNegotiation *negotiation =
2196 yaz_get_charneg_record (req->otherInfo);
2198 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2199 assoc->init->charneg_request = negotiation;
2205 if (req->implementationVersion)
2206 yaz_log(log_requestdetail, "Config: %s",
2209 iochan_settimeout(assoc->client_chan, cb->idle_timeout * 60);
2211 /* we have a backend control block, so call that init function */
2212 if (!(binitres = (*cb->bend_init)(assoc->init)))
2214 yaz_log(YLOG_WARN, "Bad response from backend.");
2217 assoc->backend = binitres->handle;
2221 /* no backend. return error */
2222 binitres = odr_malloc(assoc->encode, sizeof(*binitres));
2223 binitres->errstring = 0;
2224 binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
2225 iochan_settimeout(assoc->client_chan, 10);
2227 if ((assoc->init->bend_sort))
2228 yaz_log (YLOG_DEBUG, "Sort handler installed");
2229 if ((assoc->init->bend_search))
2230 yaz_log (YLOG_DEBUG, "Search handler installed");
2231 if ((assoc->init->bend_present))
2232 yaz_log (YLOG_DEBUG, "Present handler installed");
2233 if ((assoc->init->bend_esrequest))
2234 yaz_log (YLOG_DEBUG, "ESRequest handler installed");
2235 if ((assoc->init->bend_delete))
2236 yaz_log (YLOG_DEBUG, "Delete handler installed");
2237 if ((assoc->init->bend_scan))
2238 yaz_log (YLOG_DEBUG, "Scan handler installed");
2239 if ((assoc->init->bend_segment))
2240 yaz_log (YLOG_DEBUG, "Segment handler installed");
2242 resp->referenceId = req->referenceId;
2244 /* let's tell the client what we can do */
2245 if (ODR_MASK_GET(req->options, Z_Options_search))
2247 ODR_MASK_SET(resp->options, Z_Options_search);
2248 strcat(options, "srch");
2250 if (ODR_MASK_GET(req->options, Z_Options_present))
2252 ODR_MASK_SET(resp->options, Z_Options_present);
2253 strcat(options, " prst");
2255 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
2256 assoc->init->bend_delete)
2258 ODR_MASK_SET(resp->options, Z_Options_delSet);
2259 strcat(options, " del");
2261 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
2262 assoc->init->bend_esrequest)
2264 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
2265 strcat (options, " extendedServices");
2267 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
2269 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
2270 strcat(options, " namedresults");
2272 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
2274 ODR_MASK_SET(resp->options, Z_Options_scan);
2275 strcat(options, " scan");
2277 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
2279 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
2280 strcat(options, " concurrop");
2282 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
2284 ODR_MASK_SET(resp->options, Z_Options_sort);
2285 strcat(options, " sort");
2288 if (!assoc->init->charneg_response && !assoc->init->charneg_request)
2290 if (assoc->init->query_charset)
2292 assoc->init->charneg_response = yaz_set_response_charneg(
2293 assoc->encode, assoc->init->query_charset, 0,
2294 assoc->init->records_in_same_charset);
2298 yaz_log(YLOG_WARN, "default query_charset not defined by backend");
2301 if (assoc->init->charneg_response
2302 && ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2304 Z_OtherInformation **p;
2305 Z_OtherInformationUnit *p0;
2307 yaz_oi_APDU(apdu, &p);
2309 if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
2310 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2312 p0->which = Z_OtherInfo_externallyDefinedInfo;
2313 p0->information.externallyDefinedInfo =
2314 assoc->init->charneg_response;
2316 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2317 strcat(options, " negotiation");
2319 if (ODR_MASK_GET(req->options, Z_Options_triggerResourceCtrl))
2320 ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
2322 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
2324 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
2325 assoc->version = 1; /* 1 & 2 are equivalent */
2327 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
2329 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
2332 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
2334 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
2338 yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
2340 if (*req->maximumRecordSize < assoc->maximumRecordSize)
2341 assoc->maximumRecordSize = *req->maximumRecordSize;
2343 if (*req->preferredMessageSize < assoc->preferredMessageSize)
2344 assoc->preferredMessageSize = *req->preferredMessageSize;
2346 resp->preferredMessageSize = &assoc->preferredMessageSize;
2347 resp->maximumRecordSize = &assoc->maximumRecordSize;
2349 resp->implementationId = odr_prepend(assoc->encode,
2350 assoc->init->implementation_id,
2351 resp->implementationId);
2353 resp->implementationName = odr_prepend(assoc->encode,
2354 assoc->init->implementation_name,
2355 odr_prepend(assoc->encode, "GFS", resp->implementationName));
2357 version = odr_strdup(assoc->encode, "$Revision: 1.117 $");
2358 if (strlen(version) > 10) /* check for unexpanded CVS strings */
2359 version[strlen(version)-2] = '\0';
2360 resp->implementationVersion = odr_prepend(assoc->encode,
2361 assoc->init->implementation_version,
2362 odr_prepend(assoc->encode, &version[11],
2363 resp->implementationVersion));
2365 if (binitres->errcode)
2367 assoc->state = ASSOC_DEAD;
2368 resp->userInformationField =
2369 init_diagnostics(assoc->encode, binitres->errcode,
2370 binitres->errstring);
2375 if (!req->idAuthentication)
2376 yaz_log(log_request, "Auth none");
2377 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2379 const char *open = req->idAuthentication->u.open;
2380 const char *slash = strchr(open, '/');
2386 yaz_log(log_request, "Auth open %.*s", len, open);
2388 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2390 const char *user = req->idAuthentication->u.idPass->userId;
2391 const char *group = req->idAuthentication->u.idPass->groupId;
2392 yaz_log(log_request, "Auth idPass %s %s",
2393 user ? user : "-", group ? group : "-");
2395 else if (req->idAuthentication->which
2396 == Z_IdAuthentication_anonymous)
2398 yaz_log(log_request, "Auth anonymous");
2402 yaz_log(log_request, "Auth other");
2407 WRBUF wr = wrbuf_alloc();
2408 wrbuf_printf(wr, "Init ");
2409 if (binitres->errcode)
2410 wrbuf_printf(wr, "ERROR %d", binitres->errcode);
2412 wrbuf_printf(wr, "OK -");
2413 wrbuf_printf(wr, " ID:%s Name:%s Version:%s",
2414 (req->implementationId ? req->implementationId :"-"),
2415 (req->implementationName ?
2416 req->implementationName : "-"),
2417 (req->implementationVersion ?
2418 req->implementationVersion : "-")
2420 yaz_log(log_request, "%s", wrbuf_cstr(wr));
2427 * Set the specified `errcode' and `errstring' into a UserInfo-1
2428 * external to be returned to the client in accordance with Z35.90
2429 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
2430 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
2432 static Z_External *init_diagnostics(ODR odr, int error, const char *addinfo)
2434 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2435 addinfo ? " -- " : "", addinfo ? addinfo : "");
2436 return zget_init_diagnostics(odr, error, addinfo);
2440 * nonsurrogate diagnostic record.
2442 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
2444 Z_Records *rec = (Z_Records *) odr_malloc (assoc->encode, sizeof(*rec));
2446 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2447 addinfo ? " -- " : "", addinfo ? addinfo : "");
2449 rec->which = Z_Records_NSD;
2450 rec->u.nonSurrogateDiagnostic = zget_DefaultDiagFormat(assoc->encode,
2456 * surrogate diagnostic.
2458 static Z_NamePlusRecord *surrogatediagrec(association *assoc,
2460 int error, const char *addinfo)
2462 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2463 addinfo ? " -- " : "", addinfo ? addinfo : "");
2464 return zget_surrogateDiagRec(assoc->encode, dbname, error, addinfo);
2467 static Z_Records *pack_records(association *a, char *setname, int start,
2468 int *num, Z_RecordComposition *comp,
2469 int *next, int *pres,
2470 Z_ReferenceId *referenceId,
2471 int *oid, int *errcode)
2473 int recno, total_length = 0, toget = *num, dumped_records = 0;
2474 Z_Records *records =
2475 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
2476 Z_NamePlusRecordList *reclist =
2477 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
2478 Z_NamePlusRecord **list =
2479 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
2481 records->which = Z_Records_DBOSD;
2482 records->u.databaseOrSurDiagnostics = reclist;
2483 reclist->num_records = 0;
2484 reclist->records = list;
2485 *pres = Z_PresentStatus_success;
2489 yaz_log(log_requestdetail, "Request to pack %d+%d %s", start, toget, setname);
2490 yaz_log(log_requestdetail, "pms=%d, mrs=%d", a->preferredMessageSize,
2491 a->maximumRecordSize);
2492 for (recno = start; reclist->num_records < toget; recno++)
2495 Z_NamePlusRecord *thisrec;
2496 int this_length = 0;
2498 * we get the number of bytes allocated on the stream before any
2499 * allocation done by the backend - this should give us a reasonable
2500 * idea of the total size of the data so far.
2502 total_length = odr_total(a->encode) - dumped_records;
2508 freq.last_in_set = 0;
2509 freq.setname = setname;
2510 freq.surrogate_flag = 0;
2511 freq.number = recno;
2513 freq.request_format = oid;
2514 freq.output_format = 0;
2515 freq.stream = a->encode;
2516 freq.print = a->print;
2517 freq.referenceId = referenceId;
2520 retrieve_fetch(a, &freq);
2522 *next = freq.last_in_set ? 0 : recno + 1;
2524 /* backend should be able to signal whether error is system-wide
2525 or only pertaining to current record */
2528 if (!freq.surrogate_flag)
2531 *pres = Z_PresentStatus_failure;
2532 /* for 'present request out of range',
2533 set addinfo to record position if not set */
2534 if (freq.errcode == YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE &&
2535 freq.errstring == 0)
2537 sprintf (s, "%d", recno);
2541 *errcode = freq.errcode;
2542 return diagrec(a, freq.errcode, freq.errstring);
2544 reclist->records[reclist->num_records] =
2545 surrogatediagrec(a, freq.basename, freq.errcode,
2547 reclist->num_records++;
2550 if (freq.record == 0) /* no error and no record ? */
2552 *next = 0; /* signal end-of-set and stop */
2556 this_length = freq.len;
2558 this_length = odr_total(a->encode) - total_length - dumped_records;
2559 yaz_log(YLOG_DEBUG, " fetched record, len=%d, total=%d dumped=%d",
2560 this_length, total_length, dumped_records);
2561 if (a->preferredMessageSize > 0 &&
2562 this_length + total_length > a->preferredMessageSize)
2564 /* record is small enough, really */
2565 if (this_length <= a->preferredMessageSize && recno > start)
2567 yaz_log(log_requestdetail, " Dropped last normal-sized record");
2568 *pres = Z_PresentStatus_partial_2;
2571 /* record can only be fetched by itself */
2572 if (this_length < a->maximumRecordSize)
2574 yaz_log(log_requestdetail, " Record > prefmsgsz");
2577 yaz_log(YLOG_DEBUG, " Dropped it");
2578 reclist->records[reclist->num_records] =
2579 surrogatediagrec(a, freq.basename, 16, 0);
2580 reclist->num_records++;
2581 dumped_records += this_length;
2585 else /* too big entirely */
2587 yaz_log(log_requestdetail, "Record > maxrcdsz this=%d max=%d",
2588 this_length, a->maximumRecordSize);
2589 reclist->records[reclist->num_records] =
2590 surrogatediagrec(a, freq.basename, 17, 0);
2591 reclist->num_records++;
2592 dumped_records += this_length;
2597 if (!(thisrec = (Z_NamePlusRecord *)
2598 odr_malloc(a->encode, sizeof(*thisrec))))
2601 thisrec->databaseName = odr_strdup(a->encode, freq.basename);
2603 thisrec->databaseName = 0;
2604 thisrec->which = Z_NamePlusRecord_databaseRecord;
2606 if (!freq.output_format)
2607 freq.output_format = freq.request_format;
2608 thisrec->u.databaseRecord = z_ext_record_oid(
2609 a->encode, freq.output_format, freq.record, freq.len);
2610 if (!thisrec->u.databaseRecord)
2612 reclist->records[reclist->num_records] = thisrec;
2613 reclist->num_records++;
2615 *num = reclist->num_records;
2619 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
2622 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2623 bend_search_rr *bsrr =
2624 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
2626 yaz_log(log_requestdetail, "Got SearchRequest.");
2628 bsrr->request = reqb;
2629 bsrr->association = assoc;
2630 bsrr->referenceId = req->referenceId;
2631 save_referenceId (reqb, bsrr->referenceId);
2632 bsrr->srw_sortKeys = 0;
2633 bsrr->srw_setname = 0;
2634 bsrr->srw_setnameIdleTime = 0;
2635 bsrr->estimated_hit_count = 0;
2636 bsrr->partial_resultset = 0;
2638 yaz_log (log_requestdetail, "ResultSet '%s'", req->resultSetName);
2639 if (req->databaseNames)
2642 for (i = 0; i < req->num_databaseNames; i++)
2643 yaz_log(log_requestdetail, "Database '%s'", req->databaseNames[i]);
2646 yaz_log_zquery_level(log_requestdetail,req->query);
2648 if (assoc->init->bend_search)
2650 bsrr->setname = req->resultSetName;
2651 bsrr->replace_set = *req->replaceIndicator;
2652 bsrr->num_bases = req->num_databaseNames;
2653 bsrr->basenames = req->databaseNames;
2654 bsrr->query = req->query;
2655 bsrr->stream = assoc->encode;
2656 nmem_transfer(odr_getmem(bsrr->stream), reqb->request_mem);
2657 bsrr->decode = assoc->decode;
2658 bsrr->print = assoc->print;
2661 bsrr->errstring = NULL;
2662 bsrr->search_info = NULL;
2664 if (assoc->server && assoc->server->cql_transform
2665 && req->query->which == Z_Query_type_104
2666 && req->query->u.type_104->which == Z_External_CQL)
2668 /* have a CQL query and a CQL to PQF transform .. */
2670 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
2671 assoc->server->cql_transform, bsrr->query);
2673 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2676 (assoc->init->bend_search)(assoc->backend, bsrr);
2677 if (!bsrr->request) /* backend not ready with the search response */
2678 return 0; /* should not be used any more */
2682 /* FIXME - make a diagnostic for it */
2683 yaz_log(YLOG_WARN,"Search not supported ?!?!");
2685 return response_searchRequest(assoc, reqb, bsrr, fd);
2688 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
2691 * Prepare a searchresponse based on the backend results. We probably want
2692 * to look at making the fetching of records nonblocking as well, but
2693 * so far, we'll keep things simple.
2694 * If bsrt is null, that means we're called in response to a communications
2695 * event, and we'll have to get the response for ourselves.
2697 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
2698 bend_search_rr *bsrt, int *fd)
2700 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2701 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2702 Z_SearchResponse *resp = (Z_SearchResponse *)
2703 odr_malloc (assoc->encode, sizeof(*resp));
2704 int *nulint = odr_intdup (assoc->encode, 0);
2705 int *next = odr_intdup(assoc->encode, 0);
2706 int *none = odr_intdup(assoc->encode, Z_SearchResponse_none);
2707 int returnedrecs = 0;
2709 apdu->which = Z_APDU_searchResponse;
2710 apdu->u.searchResponse = resp;
2711 resp->referenceId = req->referenceId;
2712 resp->additionalSearchInfo = 0;
2713 resp->otherInfo = 0;
2715 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
2717 yaz_log(YLOG_FATAL, "Bad result from backend");
2720 else if (bsrt->errcode)
2722 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
2723 resp->resultCount = nulint;
2724 resp->numberOfRecordsReturned = nulint;
2725 resp->nextResultSetPosition = nulint;
2726 resp->searchStatus = nulint;
2727 resp->resultSetStatus = none;
2728 resp->presentStatus = 0;
2732 bool_t *sr = odr_intdup(assoc->encode, 1);
2733 int *toget = odr_intdup(assoc->encode, 0);
2734 Z_RecordComposition comp, *compp = 0;
2736 yaz_log (log_requestdetail, "resultCount: %d", bsrt->hits);
2739 resp->resultCount = &bsrt->hits;
2741 comp.which = Z_RecordComp_simple;
2742 /* how many records does the user agent want, then? */
2743 if (bsrt->hits <= *req->smallSetUpperBound)
2745 *toget = bsrt->hits;
2746 if ((comp.u.simple = req->smallSetElementSetNames))
2749 else if (bsrt->hits < *req->largeSetLowerBound)
2751 *toget = *req->mediumSetPresentNumber;
2752 if (*toget > bsrt->hits)
2753 *toget = bsrt->hits;
2754 if ((comp.u.simple = req->mediumSetElementSetNames))
2760 if (*toget && !resp->records)
2762 int *presst = odr_intdup(assoc->encode, 0);
2763 /* Call bend_present if defined */
2764 if (assoc->init->bend_present)
2766 bend_present_rr *bprr = (bend_present_rr *)
2767 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2768 bprr->setname = req->resultSetName;
2770 bprr->number = *toget;
2771 bprr->format = req->preferredRecordSyntax;
2773 bprr->referenceId = req->referenceId;
2774 bprr->stream = assoc->encode;
2775 bprr->print = assoc->print;
2776 bprr->request = reqb;
2777 bprr->association = assoc;
2779 bprr->errstring = NULL;
2780 (*assoc->init->bend_present)(assoc->backend, bprr);
2786 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2787 *resp->presentStatus = Z_PresentStatus_failure;
2792 resp->records = pack_records(
2793 assoc, req->resultSetName, 1,
2794 toget, compp, next, presst, req->referenceId,
2795 req->preferredRecordSyntax, NULL);
2798 resp->numberOfRecordsReturned = toget;
2799 returnedrecs = *toget;
2800 resp->presentStatus = presst;
2804 if (*resp->resultCount)
2806 resp->numberOfRecordsReturned = nulint;
2807 resp->presentStatus = 0;
2809 resp->nextResultSetPosition = next;
2810 resp->searchStatus = sr;
2811 resp->resultSetStatus = 0;
2812 if (bsrt->estimated_hit_count)
2814 resp->resultSetStatus = odr_intdup(assoc->encode,
2815 Z_SearchResponse_estimate);
2817 else if (bsrt->partial_resultset)
2819 resp->resultSetStatus = odr_intdup(assoc->encode,
2820 Z_SearchResponse_subset);
2823 resp->additionalSearchInfo = bsrt->search_info;
2828 WRBUF wr = wrbuf_alloc();
2830 for (i = 0 ; i < req->num_databaseNames; i++){
2832 wrbuf_printf(wr, "+");
2833 wrbuf_printf(wr, req->databaseNames[i]);
2835 wrbuf_printf(wr, " ");
2838 wrbuf_printf(wr, "ERROR %d", bsrt->errcode);
2840 wrbuf_printf(wr, "OK %d", bsrt->hits);
2841 wrbuf_printf(wr, " %s 1+%d ",
2842 req->resultSetName, returnedrecs);
2843 yaz_query_to_wrbuf(wr, req->query);
2845 yaz_log(log_request, "Search %s", wrbuf_cstr(wr));
2852 * Maybe we got a little over-friendly when we designed bend_fetch to
2853 * get only one record at a time. Some backends can optimise multiple-record
2854 * fetches, and at any rate, there is some overhead involved in
2855 * all that selecting and hopping around. Problem is, of course, that the
2856 * frontend can't know ahead of time how many records it'll need to
2857 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
2858 * is downright lousy as a bulk data transfer protocol.
2860 * To start with, we'll do the fetching of records from the backend
2861 * in one operation: To save some trips in and out of the event-handler,
2862 * and to simplify the interface to pack_records. At any rate, asynch
2863 * operation is more fun in operations that have an unpredictable execution
2864 * speed - which is normally more true for search than for present.
2866 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
2869 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
2871 Z_PresentResponse *resp;
2875 const char *errstring = 0;
2877 yaz_log(log_requestdetail, "Got PresentRequest.");
2879 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
2881 resp->presentStatus = odr_intdup(assoc->encode, 0);
2882 if (assoc->init->bend_present)
2884 bend_present_rr *bprr = (bend_present_rr *)
2885 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2886 bprr->setname = req->resultSetId;
2887 bprr->start = *req->resultSetStartPoint;
2888 bprr->number = *req->numberOfRecordsRequested;
2889 bprr->format = req->preferredRecordSyntax;
2890 bprr->comp = req->recordComposition;
2891 bprr->referenceId = req->referenceId;
2892 bprr->stream = assoc->encode;
2893 bprr->print = assoc->print;
2894 bprr->request = reqb;
2895 bprr->association = assoc;
2897 bprr->errstring = NULL;
2898 (*assoc->init->bend_present)(assoc->backend, bprr);
2901 return 0; /* should not happen */
2904 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2905 *resp->presentStatus = Z_PresentStatus_failure;
2906 errcode = bprr->errcode;
2907 errstring = bprr->errstring;
2910 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2911 next = odr_intdup(assoc->encode, 0);
2912 num = odr_intdup(assoc->encode, 0);
2914 apdu->which = Z_APDU_presentResponse;
2915 apdu->u.presentResponse = resp;
2916 resp->referenceId = req->referenceId;
2917 resp->otherInfo = 0;
2921 *num = *req->numberOfRecordsRequested;
2923 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
2924 num, req->recordComposition, next,
2925 resp->presentStatus,
2926 req->referenceId, req->preferredRecordSyntax,
2931 WRBUF wr = wrbuf_alloc();
2932 wrbuf_printf(wr, "Present ");
2934 if (*resp->presentStatus == Z_PresentStatus_failure)
2935 wrbuf_printf(wr, "ERROR %d ", errcode);
2936 else if (*resp->presentStatus == Z_PresentStatus_success)
2937 wrbuf_printf(wr, "OK - ");
2939 wrbuf_printf(wr, "Partial %d - ", *resp->presentStatus);
2941 wrbuf_printf(wr, " %s %d+%d ",
2942 req->resultSetId, *req->resultSetStartPoint,
2943 *req->numberOfRecordsRequested);
2944 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
2949 resp->numberOfRecordsReturned = num;
2950 resp->nextResultSetPosition = next;
2956 * Scan was implemented rather in a hurry, and with support for only the basic
2957 * elements of the service in the backend API. Suggestions are welcome.
2959 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
2961 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
2962 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2963 Z_ScanResponse *res = (Z_ScanResponse *)
2964 odr_malloc (assoc->encode, sizeof(*res));
2965 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2966 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2967 Z_ListEntries *ents = (Z_ListEntries *)
2968 odr_malloc (assoc->encode, sizeof(*ents));
2969 Z_DiagRecs *diagrecs_p = NULL;
2970 bend_scan_rr *bsrr = (bend_scan_rr *)
2971 odr_malloc (assoc->encode, sizeof(*bsrr));
2972 struct scan_entry *save_entries;
2974 yaz_log(log_requestdetail, "Got ScanRequest");
2976 apdu->which = Z_APDU_scanResponse;
2977 apdu->u.scanResponse = res;
2978 res->referenceId = req->referenceId;
2980 /* if step is absent, set it to 0 */
2981 res->stepSize = odr_intdup(assoc->encode, 0);
2983 *res->stepSize = *req->stepSize;
2985 res->scanStatus = scanStatus;
2986 res->numberOfEntriesReturned = numberOfEntriesReturned;
2987 res->positionOfTerm = 0;
2988 res->entries = ents;
2989 ents->num_entries = 0;
2990 ents->entries = NULL;
2991 ents->num_nonsurrogateDiagnostics = 0;
2992 ents->nonsurrogateDiagnostics = NULL;
2993 res->attributeSet = 0;
2996 if (req->databaseNames)
2999 for (i = 0; i < req->num_databaseNames; i++)
3000 yaz_log (log_requestdetail, "Database '%s'", req->databaseNames[i]);
3002 bsrr->scanClause = 0;
3004 bsrr->errstring = 0;
3005 bsrr->num_bases = req->num_databaseNames;
3006 bsrr->basenames = req->databaseNames;
3007 bsrr->num_entries = *req->numberOfTermsRequested;
3008 bsrr->term = req->termListAndStartPoint;
3009 bsrr->referenceId = req->referenceId;
3010 bsrr->stream = assoc->encode;
3011 bsrr->print = assoc->print;
3012 bsrr->step_size = res->stepSize;
3014 /* For YAZ 2.0 and earlier it was the backend handler that
3015 initialized entries (member display_term did not exist)
3016 YAZ 2.0 and later sets 'entries' and initialize all members
3017 including 'display_term'. If YAZ 2.0 or later sees that
3018 entries was modified - we assume that it is an old handler and
3019 that 'display_term' is _not_ set.
3021 if (bsrr->num_entries > 0)
3024 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
3026 for (i = 0; i<bsrr->num_entries; i++)
3028 bsrr->entries[i].term = 0;
3029 bsrr->entries[i].occurrences = 0;
3030 bsrr->entries[i].errcode = 0;
3031 bsrr->entries[i].errstring = 0;
3032 bsrr->entries[i].display_term = 0;
3035 save_entries = bsrr->entries; /* save it so we can compare later */
3037 bsrr->attributeset = req->attributeSet;
3038 log_scan_term_level (log_requestdetail, req->termListAndStartPoint,
3039 bsrr->attributeset);
3040 bsrr->term_position = req->preferredPositionInResponse ?
3041 *req->preferredPositionInResponse : 1;
3043 ((int (*)(void *, bend_scan_rr *))
3044 (*assoc->init->bend_scan))(assoc->backend, bsrr);
3047 diagrecs_p = zget_DiagRecs(assoc->encode,
3048 bsrr->errcode, bsrr->errstring);
3052 Z_Entry **tab = (Z_Entry **)
3053 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
3055 if (bsrr->status == BEND_SCAN_PARTIAL)
3056 *scanStatus = Z_Scan_partial_5;
3058 *scanStatus = Z_Scan_success;
3059 ents->entries = tab;
3060 ents->num_entries = bsrr->num_entries;
3061 res->numberOfEntriesReturned = &ents->num_entries;
3062 res->positionOfTerm = &bsrr->term_position;
3063 for (i = 0; i < bsrr->num_entries; i++)
3069 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
3070 if (bsrr->entries[i].occurrences >= 0)
3072 e->which = Z_Entry_termInfo;
3073 e->u.termInfo = t = (Z_TermInfo *)
3074 odr_malloc(assoc->encode, sizeof(*t));
3075 t->suggestedAttributes = 0;
3077 if (save_entries == bsrr->entries &&
3078 bsrr->entries[i].display_term)
3080 /* the entries was _not_ set by the handler. So it's
3081 safe to test for new member display_term. It is
3084 t->displayTerm = odr_strdup(assoc->encode,
3085 bsrr->entries[i].display_term);
3087 t->alternativeTerm = 0;
3088 t->byAttributes = 0;
3089 t->otherTermInfo = 0;
3090 t->globalOccurrences = &bsrr->entries[i].occurrences;
3091 t->term = (Z_Term *)
3092 odr_malloc(assoc->encode, sizeof(*t->term));
3093 t->term->which = Z_Term_general;
3094 t->term->u.general = o =
3095 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
3096 o->buf = (unsigned char *)
3097 odr_malloc(assoc->encode, o->len = o->size =
3098 strlen(bsrr->entries[i].term));
3099 memcpy(o->buf, bsrr->entries[i].term, o->len);
3100 yaz_log(YLOG_DEBUG, " term #%d: '%s' (%d)", i,
3101 bsrr->entries[i].term, bsrr->entries[i].occurrences);
3105 Z_DiagRecs *drecs = zget_DiagRecs(assoc->encode,
3106 bsrr->entries[i].errcode,
3107 bsrr->entries[i].errstring);
3108 assert (drecs->num_diagRecs == 1);
3109 e->which = Z_Entry_surrogateDiagnostic;
3110 assert (drecs->diagRecs[0]);
3111 e->u.surrogateDiagnostic = drecs->diagRecs[0];
3117 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
3118 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
3123 WRBUF wr = wrbuf_alloc();
3124 wrbuf_printf(wr, "Scan ");
3125 for (i = 0 ; i < req->num_databaseNames; i++){
3127 wrbuf_printf(wr, "+");
3128 wrbuf_printf(wr, req->databaseNames[i]);
3130 wrbuf_printf(wr, " ");
3133 wr_diag(wr, bsrr->errcode, bsrr->errstring);
3134 wrbuf_printf(wr, " ");
3137 wrbuf_printf(wr, "OK ");
3138 /* else if (*res->scanStatus == Z_Scan_success) */
3139 /* wrbuf_printf(wr, "OK "); */
3141 /* wrbuf_printf(wr, "Partial "); */
3143 if (*res->numberOfEntriesReturned)
3144 wrbuf_printf(wr, "%d - ", *res->numberOfEntriesReturned);
3146 wrbuf_printf(wr, "0 - ");
3148 wrbuf_printf(wr, "%d+%d+%d ",
3149 (req->preferredPositionInResponse ?
3150 *req->preferredPositionInResponse : 1),
3151 *req->numberOfTermsRequested,
3152 (res->stepSize ? *res->stepSize : 1));
3154 yaz_scan_to_wrbuf(wr, req->termListAndStartPoint,
3155 bsrr->attributeset);
3156 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3162 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
3166 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
3167 Z_SortResponse *res = (Z_SortResponse *)
3168 odr_malloc (assoc->encode, sizeof(*res));
3169 bend_sort_rr *bsrr = (bend_sort_rr *)
3170 odr_malloc (assoc->encode, sizeof(*bsrr));
3172 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3174 yaz_log(log_requestdetail, "Got SortRequest.");
3176 bsrr->num_input_setnames = req->num_inputResultSetNames;
3177 for (i=0;i<req->num_inputResultSetNames;i++)
3178 yaz_log(log_requestdetail, "Input resultset: '%s'",
3179 req->inputResultSetNames[i]);
3180 bsrr->input_setnames = req->inputResultSetNames;
3181 bsrr->referenceId = req->referenceId;
3182 bsrr->output_setname = req->sortedResultSetName;
3183 yaz_log(log_requestdetail, "Output resultset: '%s'",
3184 req->sortedResultSetName);
3185 bsrr->sort_sequence = req->sortSequence;
3186 /*FIXME - dump those sequences too */
3187 bsrr->stream = assoc->encode;
3188 bsrr->print = assoc->print;
3190 bsrr->sort_status = Z_SortResponse_failure;
3192 bsrr->errstring = 0;
3194 (*assoc->init->bend_sort)(assoc->backend, bsrr);
3196 res->referenceId = bsrr->referenceId;
3197 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
3198 res->resultSetStatus = 0;
3201 Z_DiagRecs *dr = zget_DiagRecs(assoc->encode,
3202 bsrr->errcode, bsrr->errstring);
3203 res->diagnostics = dr->diagRecs;
3204 res->num_diagnostics = dr->num_diagRecs;
3208 res->num_diagnostics = 0;
3209 res->diagnostics = 0;
3211 res->resultCount = 0;
3214 apdu->which = Z_APDU_sortResponse;
3215 apdu->u.sortResponse = res;
3218 WRBUF wr = wrbuf_alloc();
3219 wrbuf_printf(wr, "Sort ");
3221 wrbuf_printf(wr, " ERROR %d", bsrr->errcode);
3223 wrbuf_printf(wr, "OK -");
3224 wrbuf_printf(wr, " (");
3225 for (i = 0; i<req->num_inputResultSetNames; i++)
3228 wrbuf_printf(wr, "+");
3229 wrbuf_printf(wr, req->inputResultSetNames[i]);
3231 wrbuf_printf(wr, ")->%s ",req->sortedResultSetName);
3233 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3239 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
3243 Z_DeleteResultSetRequest *req =
3244 reqb->apdu_request->u.deleteResultSetRequest;
3245 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
3246 odr_malloc (assoc->encode, sizeof(*res));
3247 bend_delete_rr *bdrr = (bend_delete_rr *)
3248 odr_malloc (assoc->encode, sizeof(*bdrr));
3249 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3251 yaz_log(log_requestdetail, "Got DeleteRequest.");
3253 bdrr->num_setnames = req->num_resultSetList;
3254 bdrr->setnames = req->resultSetList;
3255 for (i = 0; i<req->num_resultSetList; i++)
3256 yaz_log(log_requestdetail, "resultset: '%s'",
3257 req->resultSetList[i]);
3258 bdrr->stream = assoc->encode;
3259 bdrr->print = assoc->print;
3260 bdrr->function = *req->deleteFunction;
3261 bdrr->referenceId = req->referenceId;
3263 if (bdrr->num_setnames > 0)
3265 bdrr->statuses = (int*)
3266 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
3267 bdrr->num_setnames);
3268 for (i = 0; i < bdrr->num_setnames; i++)
3269 bdrr->statuses[i] = 0;
3271 (*assoc->init->bend_delete)(assoc->backend, bdrr);
3273 res->referenceId = req->referenceId;
3275 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
3277 res->deleteListStatuses = 0;
3278 if (bdrr->num_setnames > 0)
3281 res->deleteListStatuses = (Z_ListStatuses *)
3282 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
3283 res->deleteListStatuses->num = bdrr->num_setnames;
3284 res->deleteListStatuses->elements =
3286 odr_malloc (assoc->encode,
3287 sizeof(*res->deleteListStatuses->elements) *
3288 bdrr->num_setnames);
3289 for (i = 0; i<bdrr->num_setnames; i++)
3291 res->deleteListStatuses->elements[i] =
3293 odr_malloc (assoc->encode,
3294 sizeof(**res->deleteListStatuses->elements));
3295 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
3296 res->deleteListStatuses->elements[i]->id =
3297 odr_strdup (assoc->encode, bdrr->setnames[i]);
3300 res->numberNotDeleted = 0;
3301 res->bulkStatuses = 0;
3302 res->deleteMessage = 0;
3305 apdu->which = Z_APDU_deleteResultSetResponse;
3306 apdu->u.deleteResultSetResponse = res;
3309 WRBUF wr = wrbuf_alloc();
3310 wrbuf_printf(wr, "Delete ");
3311 if (bdrr->delete_status)
3312 wrbuf_printf(wr, "ERROR %d", bdrr->delete_status);
3314 wrbuf_printf(wr, "OK -");
3315 for (i = 0; i<req->num_resultSetList; i++)
3316 wrbuf_printf(wr, " %s ", req->resultSetList[i]);
3317 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3323 static void process_close(association *assoc, request *reqb)
3325 Z_Close *req = reqb->apdu_request->u.close;
3326 static char *reasons[] =
3333 "securityViolation",
3340 yaz_log(log_requestdetail, "Got Close, reason %s, message %s",
3341 reasons[*req->closeReason], req->diagnosticInformation ?
3342 req->diagnosticInformation : "NULL");
3343 if (assoc->version < 3) /* to make do_force respond with close */
3345 do_close_req(assoc, Z_Close_finished,
3346 "Association terminated by client", reqb);
3347 yaz_log(log_request,"Close OK");
3350 void save_referenceId (request *reqb, Z_ReferenceId *refid)
3354 reqb->len_refid = refid->len;
3355 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
3356 memcpy (reqb->refid, refid->buf, refid->len);
3360 reqb->len_refid = 0;
3365 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
3367 process_z_response (a, req, res);
3370 bend_request bend_request_mk (bend_association a)
3372 request *nreq = request_get (&a->outgoing);
3373 nreq->request_mem = nmem_create ();
3377 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
3382 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
3383 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
3384 id->len = id->size = req->len_refid;
3385 memcpy (id->buf, req->refid, req->len_refid);
3389 void bend_request_destroy (bend_request *req)
3391 nmem_destroy((*req)->request_mem);
3392 request_release(*req);
3396 int bend_backend_respond (bend_association a, bend_request req)
3400 r = process_z_request (a, req, &msg);
3402 yaz_log (YLOG_WARN, "%s", msg);
3406 void bend_request_setdata(bend_request r, void *p)
3411 void *bend_request_getdata(bend_request r)
3413 return r->clientData;
3416 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
3418 bend_segment_rr req;
3420 req.segment = reqb->apdu_request->u.segmentRequest;
3421 req.stream = assoc->encode;
3422 req.decode = assoc->decode;
3423 req.print = assoc->print;
3424 req.association = assoc;
3426 (*assoc->init->bend_segment)(assoc->backend, &req);
3431 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
3433 bend_esrequest_rr esrequest;
3434 const char *ext_name = "unknown";
3436 Z_ExtendedServicesRequest *req =
3437 reqb->apdu_request->u.extendedServicesRequest;
3438 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
3440 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
3442 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
3443 esrequest.stream = assoc->encode;
3444 esrequest.decode = assoc->decode;
3445 esrequest.print = assoc->print;
3446 esrequest.errcode = 0;
3447 esrequest.errstring = NULL;
3448 esrequest.request = reqb;
3449 esrequest.association = assoc;
3450 esrequest.taskPackage = 0;
3451 esrequest.referenceId = req->referenceId;
3454 if (esrequest.esr && esrequest.esr->taskSpecificParameters)
3456 switch(esrequest.esr->taskSpecificParameters->which)
3458 case Z_External_itemOrder:
3459 ext_name = "ItemOrder"; break;
3460 case Z_External_update:
3461 ext_name = "Update"; break;
3462 case Z_External_update0:
3463 ext_name = "Update0"; break;
3464 case Z_External_ESAdmin:
3465 ext_name = "Admin"; break;
3470 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
3472 /* If the response is being delayed, return NULL */
3473 if (esrequest.request == NULL)
3476 resp->referenceId = req->referenceId;
3478 if (esrequest.errcode == -1)
3480 /* Backend service indicates request will be processed */
3481 yaz_log(log_request, "Extended Service: %s (accepted)", ext_name);
3482 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
3484 else if (esrequest.errcode == 0)
3486 /* Backend service indicates request will be processed */
3487 yaz_log(log_request, "Extended Service: %s (done)", ext_name);
3488 *resp->operationStatus = Z_ExtendedServicesResponse_done;
3492 Z_DiagRecs *diagRecs =
3493 zget_DiagRecs(assoc->encode, esrequest.errcode,
3494 esrequest.errstring);
3495 /* Backend indicates error, request will not be processed */
3496 yaz_log(log_request, "Extended Service: %s (failed)", ext_name);
3497 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
3498 resp->num_diagnostics = diagRecs->num_diagRecs;
3499 resp->diagnostics = diagRecs->diagRecs;
3502 WRBUF wr = wrbuf_alloc();
3503 wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics);
3504 yaz_log(log_request, "EsRequest %s", wrbuf_cstr(wr) );
3509 /* Do something with the members of bend_extendedservice */
3510 if (esrequest.taskPackage)
3512 resp->taskPackage = z_ext_record_oid(
3513 assoc->encode, yaz_oid_recsyn_extended,
3514 (const char *) esrequest.taskPackage, -1
3517 yaz_log(YLOG_DEBUG,"Send the result apdu");
3521 int bend_assoc_is_alive(bend_association assoc)
3523 if (assoc->state == ASSOC_DEAD)
3524 return 0; /* already marked as dead. Don't check I/O chan anymore */
3526 return iochan_is_alive(assoc->client_chan);
3533 * indent-tabs-mode: nil
3535 * vim: shiftwidth=4 tabstop=8 expandtab