2 * Copyright (C) 1995-2005, Index Data ApS
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.85 2006-05-31 16:20:41 quinn 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>
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>
77 #include <yaz/backend.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;
106 static int log_request = 0; /* one-line logs for requests */
107 static int log_requestdetail = 0; /* more detailed stuff */
109 /** get_logbits sets global loglevel bits */
110 static void get_logbits()
111 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
115 log_session = yaz_log_module_level("session");
116 log_request = yaz_log_module_level("request");
117 log_requestdetail = yaz_log_module_level("requestdetail");
121 static void wr_diag(WRBUF w, int error, const char *addinfo)
123 wrbuf_printf(w, "ERROR [%d] %s%s%s",
124 error, diagbib1_str(error),
125 addinfo ? "--" : "", addinfo ? addinfo : "");
130 * Create and initialize a new association-handle.
131 * channel : iochannel for the current line.
132 * link : communications channel.
133 * Returns: 0 or a new association handle.
135 association *create_association(IOCHAN channel, COMSTACK link,
136 const char *apdufile)
142 if (!(anew = (association *)xmalloc(sizeof(*anew))))
146 anew->last_control = 0;
147 anew->client_chan = channel;
148 anew->client_link = link;
149 anew->cs_get_mask = 0;
150 anew->cs_put_mask = 0;
151 anew->cs_accept_mask = 0;
152 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
153 !(anew->encode = odr_createmem(ODR_ENCODE)))
155 if (apdufile && *apdufile)
159 if (!(anew->print = odr_createmem(ODR_PRINT)))
161 if (*apdufile == '@')
163 odr_setprint(anew->print, yaz_log_file());
165 else if (*apdufile != '-')
168 sprintf(filename, "%.200s.%ld", apdufile, (long)getpid());
169 if (!(f = fopen(filename, "w")))
171 yaz_log(YLOG_WARN|YLOG_ERRNO, "%s", filename);
174 setvbuf(f, 0, _IONBF, 0);
175 odr_setprint(anew->print, f);
180 anew->input_buffer = 0;
181 anew->input_buffer_len = 0;
183 anew->state = ASSOC_NEW;
184 request_initq(&anew->incoming);
185 request_initq(&anew->outgoing);
186 anew->proto = cs_getproto(link);
192 * Free association and release resources.
194 void destroy_association(association *h)
196 statserv_options_block *cb = statserv_getcontrol();
200 odr_destroy(h->decode);
201 odr_destroy(h->encode);
203 odr_destroy(h->print);
205 xfree(h->input_buffer);
207 (*cb->bend_close)(h->backend);
208 while ((req = request_deq(&h->incoming)))
209 request_release(req);
210 while ((req = request_deq(&h->outgoing)))
211 request_release(req);
212 request_delq(&h->incoming);
213 request_delq(&h->outgoing);
215 xmalloc_trav("session closed");
216 if (cb && cb->one_shot)
222 static void do_close_req(association *a, int reason, char *message,
226 Z_Close *cls = zget_Close(a->encode);
228 /* Purge request queue */
229 while (request_deq(&a->incoming));
230 while (request_deq(&a->outgoing));
233 yaz_log(log_requestdetail, "Sending Close PDU, reason=%d, message=%s",
234 reason, message ? message : "none");
235 apdu.which = Z_APDU_close;
237 *cls->closeReason = reason;
238 cls->diagnosticInformation = message;
239 process_z_response(a, req, &apdu);
240 iochan_settimeout(a->client_chan, 20);
244 request_release(req);
245 yaz_log(log_requestdetail, "v2 client. No Close PDU");
246 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
249 a->state = ASSOC_DEAD;
252 static void do_close(association *a, int reason, char *message)
254 request *req = request_get(&a->outgoing);
255 do_close_req (a, reason, message, req);
259 * This is where PDUs from the client are read and the further
260 * processing is initiated. Flow of control moves down through the
261 * various process_* functions below, until the encoded result comes back up
262 * to the output handler in here.
264 * h : the I/O channel that has an outstanding event.
265 * event : the current outstanding event.
267 void ir_session(IOCHAN h, int event)
270 association *assoc = (association *)iochan_getdata(h);
271 COMSTACK conn = assoc->client_link;
274 assert(h && conn && assoc);
275 if (event == EVENT_TIMEOUT)
277 if (assoc->state != ASSOC_UP)
279 yaz_log(YLOG_DEBUG, "Final timeout - closing connection.");
280 /* do we need to lod this at all */
282 destroy_association(assoc);
287 yaz_log(log_session, "Session idle too long. Sending close.");
288 do_close(assoc, Z_Close_lackOfActivity, 0);
292 if (event & assoc->cs_accept_mask)
294 if (!cs_accept (conn))
296 yaz_log (YLOG_WARN, "accept failed");
297 destroy_association(assoc);
300 iochan_clearflag (h, EVENT_OUTPUT);
301 if (conn->io_pending)
302 { /* cs_accept didn't complete */
303 assoc->cs_accept_mask =
304 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
305 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
307 iochan_setflag (h, assoc->cs_accept_mask);
310 { /* cs_accept completed. Prepare for reading (cs_get) */
311 assoc->cs_accept_mask = 0;
312 assoc->cs_get_mask = EVENT_INPUT;
313 iochan_setflag (h, assoc->cs_get_mask);
317 if ((event & assoc->cs_get_mask) || (event & EVENT_WORK)) /* input */
319 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
321 yaz_log(YLOG_DEBUG, "ir_session (input)");
322 /* We aren't speaking to this fellow */
323 if (assoc->state == ASSOC_DEAD)
325 yaz_log(log_session, "Connection closed - end of session");
327 destroy_association(assoc);
331 assoc->cs_get_mask = EVENT_INPUT;
332 if ((res = cs_get(conn, &assoc->input_buffer,
333 &assoc->input_buffer_len)) <= 0)
335 yaz_log(log_session, "Connection closed by client");
337 destroy_association(assoc);
341 else if (res == 1) /* incomplete read - wait for more */
343 if (conn->io_pending & CS_WANT_WRITE)
344 assoc->cs_get_mask |= EVENT_OUTPUT;
345 iochan_setflag(h, assoc->cs_get_mask);
348 if (cs_more(conn)) /* more stuff - call us again later, please */
349 iochan_setevent(h, EVENT_INPUT);
351 /* we got a complete PDU. Let's decode it */
352 yaz_log(YLOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
353 assoc->input_buffer[0] & 0xff,
354 assoc->input_buffer[1] & 0xff,
355 assoc->input_buffer[2] & 0xff);
356 req = request_get(&assoc->incoming); /* get a new request */
357 odr_reset(assoc->decode);
358 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
359 if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
361 yaz_log(YLOG_WARN, "ODR error on incoming PDU: %s [element %s] "
363 odr_errmsg(odr_geterror(assoc->decode)),
364 odr_getelement(assoc->decode),
365 (long) odr_offset(assoc->decode));
366 if (assoc->decode->error != OHTTP)
368 yaz_log(YLOG_WARN, "PDU dump:");
369 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
370 request_release(req);
371 do_close(assoc, Z_Close_protocolError,"Malformed package");
375 Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
376 assoc->state = ASSOC_DEAD;
377 process_gdu_response(assoc, req, p);
381 req->request_mem = odr_extract_mem(assoc->decode);
384 if (!z_GDU(assoc->print, &req->gdu_request, 0, 0))
385 yaz_log(YLOG_WARN, "ODR print error: %s",
386 odr_errmsg(odr_geterror(assoc->print)));
387 odr_reset(assoc->print);
389 request_enq(&assoc->incoming, req);
392 /* can we do something yet? */
393 req = request_head(&assoc->incoming);
394 if (req->state == REQUEST_IDLE)
396 request_deq(&assoc->incoming);
397 process_gdu_request(assoc, req);
400 if (event & assoc->cs_put_mask)
402 request *req = request_head(&assoc->outgoing);
404 assoc->cs_put_mask = 0;
405 yaz_log(YLOG_DEBUG, "ir_session (output)");
406 req->state = REQUEST_PENDING;
407 switch (res = cs_put(conn, req->response, req->len_response))
410 yaz_log(log_session, "Connection closed by client");
412 destroy_association(assoc);
415 case 0: /* all sent - release the request structure */
416 yaz_log(YLOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
418 yaz_log(YLOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
421 nmem_destroy(req->request_mem);
422 request_deq(&assoc->outgoing);
423 request_release(req);
424 if (!request_head(&assoc->outgoing))
425 { /* restore mask for cs_get operation ... */
426 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
427 iochan_setflag(h, assoc->cs_get_mask);
428 if (assoc->state == ASSOC_DEAD)
429 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
433 assoc->cs_put_mask = EVENT_OUTPUT;
437 if (conn->io_pending & CS_WANT_WRITE)
438 assoc->cs_put_mask |= EVENT_OUTPUT;
439 if (conn->io_pending & CS_WANT_READ)
440 assoc->cs_put_mask |= EVENT_INPUT;
441 iochan_setflag(h, assoc->cs_put_mask);
444 if (event & EVENT_EXCEPT)
446 yaz_log(YLOG_WARN, "ir_session (exception)");
448 destroy_association(assoc);
453 static int process_z_request(association *assoc, request *req, char **msg);
456 static void assoc_init_reset(association *assoc)
459 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
461 assoc->init->stream = assoc->encode;
462 assoc->init->print = assoc->print;
463 assoc->init->auth = 0;
464 assoc->init->referenceId = 0;
465 assoc->init->implementation_version = 0;
466 assoc->init->implementation_id = 0;
467 assoc->init->implementation_name = 0;
468 assoc->init->bend_sort = NULL;
469 assoc->init->bend_search = NULL;
470 assoc->init->bend_present = NULL;
471 assoc->init->bend_esrequest = NULL;
472 assoc->init->bend_delete = NULL;
473 assoc->init->bend_scan = NULL;
474 assoc->init->bend_segment = NULL;
475 assoc->init->bend_fetch = NULL;
476 assoc->init->bend_explain = NULL;
477 assoc->init->bend_srw_scan = NULL;
478 assoc->init->bend_srw_update = NULL;
480 assoc->init->charneg_request = NULL;
481 assoc->init->charneg_response = NULL;
483 assoc->init->decode = assoc->decode;
484 assoc->init->peer_name =
485 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
487 yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name);
490 static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num, Z_SRW_PDU *sr)
492 statserv_options_block *cb = statserv_getcontrol();
495 const char *encoding = "UTF-8";
497 bend_initresult *binitres;
499 yaz_log(YLOG_LOG, "srw_bend_init config=%s", cb->configname);
500 assoc_init_reset(assoc);
502 assoc->maximumRecordSize = 3000000;
503 assoc->preferredMessageSize = 3000000;
507 Z_IdAuthentication *auth = odr_malloc(assoc->decode, sizeof(*auth));
510 len = strlen(sr->username) + 1;
512 len += strlen(sr->password) + 2;
513 auth->which = Z_IdAuthentication_open;
514 auth->u.open = odr_malloc(assoc->decode, len);
515 strcpy(auth->u.open, sr->username);
516 if (sr->password && *sr->password)
518 strcat(auth->u.open, "/");
519 strcat(auth->u.open, sr->password);
521 assoc->init->auth = auth;
525 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
526 assoc->init->charneg_request = ce->u.charNeg3;
529 if (!(binitres = (*cb->bend_init)(assoc->init)))
531 assoc->state = ASSOC_DEAD;
532 yaz_add_srw_diagnostic(assoc->encode, d, num,
533 YAZ_SRW_AUTHENTICATION_ERROR, 0);
536 assoc->backend = binitres->handle;
537 assoc->init->auth = 0;
538 if (binitres->errcode)
540 int srw_code = yaz_diag_bib1_to_srw(binitres->errcode);
541 assoc->state = ASSOC_DEAD;
542 yaz_add_srw_diagnostic(assoc->encode, d, num, srw_code,
543 binitres->errstring);
551 static const char *get_esn(Z_RecordComposition *comp)
553 if (comp && comp->which == Z_RecordComp_complex)
555 if (comp->u.complex->generic
556 && comp->u.complex->generic->elementSpec
557 && (comp->u.complex->generic->elementSpec->which ==
558 Z_ElementSpec_elementSetName))
559 return comp->u.complex->generic->elementSpec->u.elementSetName;
561 else if (comp && comp->which == Z_RecordComp_simple &&
562 comp->u.simple->which == Z_ElementSetNames_generic)
563 return comp->u.simple->u.generic;
567 static void set_esn(Z_RecordComposition **comp_p, const char *esn, NMEM nmem)
569 Z_RecordComposition *comp = nmem_malloc(nmem, sizeof(*comp));
571 comp->which = Z_RecordComp_simple;
572 comp->u.simple = nmem_malloc(nmem, sizeof(*comp->u.simple));
573 comp->u.simple->which = Z_ElementSetNames_generic;
574 comp->u.simple->u.generic = nmem_strdup(nmem, esn);
578 static int retrieve_fetch(association *assoc, bend_fetch_rr *rr)
581 yaz_record_conv_t rc = 0;
582 const char *match_schema = 0;
583 int *match_syntax = 0;
588 const char *input_schema = get_esn(rr->comp);
589 Odr_oid *input_syntax_raw = rr->request_format_raw;
591 const char *backend_schema = 0;
592 Odr_oid *backend_syntax = 0;
594 r = yaz_retrieval_request(assoc->server->retrieval,
602 if (r == -1) /* error ? */
604 const char *details = yaz_retrieval_get_error(
605 assoc->server->retrieval);
607 rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
609 rr->errstring = odr_strdup(rr->stream, details);
612 else if (r == 1 || r == 3)
614 const char *details = input_schema;
615 rr->errcode = YAZ_BIB1_ELEMENT_SET_NAMES_UNSUPP;
617 rr->errstring = odr_strdup(rr->stream, details);
622 rr->errcode = YAZ_BIB1_RECORD_SYNTAX_UNSUPP;
623 if (input_syntax_raw)
625 char oidbuf[OID_STR_MAX];
626 oid_to_dotstring(input_syntax_raw, oidbuf);
627 rr->errstring = odr_strdup(rr->stream, oidbuf);
633 set_esn(&rr->comp, backend_schema, rr->stream->mem);
637 oident *oident_syntax = oid_getentbyoid(backend_syntax);
639 rr->request_format_raw = backend_syntax;
642 rr->request_format = oident_syntax->value;
644 rr->request_format = VAL_NONE;
647 (*assoc->init->bend_fetch)(assoc->backend, rr);
648 if (rc && rr->record && rr->errcode == 0 && rr->len > 0)
649 { /* post conversion must take place .. */
650 WRBUF output_record = wrbuf_alloc();
651 int r = yaz_record_conv_record(rc, rr->record, rr->len, output_record);
654 const char *details = yaz_record_conv_get_error(rc);
655 rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
657 rr->errstring = odr_strdup(rr->stream, details);
661 rr->len = wrbuf_len(output_record);
662 rr->record = odr_malloc(rr->stream, rr->len);
663 memcpy(rr->record, wrbuf_buf(output_record), rr->len);
665 wrbuf_free(output_record, 1);
669 struct oident *oi = oid_getentbyoid(match_syntax);
670 rr->output_format = oi ? oi->value : VAL_NONE;
671 rr->output_format_raw = match_syntax;
674 rr->schema = odr_strdup(rr->stream, match_schema);
677 (*assoc->init->bend_fetch)(assoc->backend, rr);
681 static int srw_bend_fetch(association *assoc, int pos,
682 Z_SRW_searchRetrieveRequest *srw_req,
683 Z_SRW_record *record)
686 ODR o = assoc->encode;
688 rr.setname = "default";
691 rr.request_format = VAL_TEXT_XML;
692 rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
695 rr.comp = (Z_RecordComposition *)
696 odr_malloc(assoc->decode, sizeof(*rr.comp));
697 rr.comp->which = Z_RecordComp_complex;
698 rr.comp->u.complex = (Z_CompSpec *)
699 odr_malloc(assoc->decode, sizeof(Z_CompSpec));
700 rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
701 odr_malloc(assoc->encode, sizeof(bool_t));
702 *rr.comp->u.complex->selectAlternativeSyntax = 0;
703 rr.comp->u.complex->num_dbSpecific = 0;
704 rr.comp->u.complex->dbSpecific = 0;
705 rr.comp->u.complex->num_recordSyntax = 0;
706 rr.comp->u.complex->recordSyntax = 0;
708 rr.comp->u.complex->generic = (Z_Specification *)
709 odr_malloc(assoc->decode, sizeof(Z_Specification));
711 /* schema uri = recordSchema (or NULL if recordSchema is not given) */
712 rr.comp->u.complex->generic->which = Z_Schema_uri;
713 rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
715 /* ESN = recordSchema if recordSchema is present */
716 rr.comp->u.complex->generic->elementSpec = 0;
717 if (srw_req->recordSchema)
719 rr.comp->u.complex->generic->elementSpec =
720 (Z_ElementSpec *) odr_malloc(assoc->encode, sizeof(Z_ElementSpec));
721 rr.comp->u.complex->generic->elementSpec->which =
722 Z_ElementSpec_elementSetName;
723 rr.comp->u.complex->generic->elementSpec->u.elementSetName =
724 srw_req->recordSchema;
727 rr.stream = assoc->encode;
728 rr.print = assoc->print;
736 rr.surrogate_flag = 0;
737 rr.schema = srw_req->recordSchema;
739 if (!assoc->init->bend_fetch)
742 retrieve_fetch(assoc, &rr);
744 if (rr.errcode && rr.surrogate_flag)
746 int code = yaz_diag_bib1_to_srw(rr.errcode);
747 const char *message = yaz_diag_srw_str(code);
750 len += strlen(message);
752 len += strlen(rr.errstring);
754 record->recordData_buf = odr_malloc(o, len);
756 sprintf(record->recordData_buf, "<diagnostic "
757 "xmlns=\"http://www.loc.gov/zing/srw/diagnostic/\">\n"
758 " <uri>info:srw/diagnostic/1/%d</uri>\n", code);
760 sprintf(record->recordData_buf + strlen(record->recordData_buf),
761 " <details>%s</details>\n", rr.errstring);
763 sprintf(record->recordData_buf + strlen(record->recordData_buf),
764 " <message>%s</message>\n", message);
765 sprintf(record->recordData_buf + strlen(record->recordData_buf),
767 record->recordData_len = strlen(record->recordData_buf);
768 record->recordPosition = odr_intdup(o, pos);
769 record->recordSchema = "info:srw/schema/1/diagnostics-v1.1";
772 else if (rr.len >= 0)
774 record->recordData_buf = rr.record;
775 record->recordData_len = rr.len;
776 record->recordPosition = odr_intdup(o, pos);
778 record->recordSchema = odr_strdup(o, rr.schema);
780 record->recordSchema = 0;
785 static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
786 Z_Query *query_result)
788 /* have a CQL query and CQL to PQF transform .. */
789 CQL_parser cp = cql_parser_create();
795 r = cql_parser_string(cp, cql);
798 /* CQL syntax error */
804 r = cql_transform_buf(ct,
805 cql_parser_result(cp),
806 rpn_buf, sizeof(rpn_buf)-1);
808 srw_errcode = cql_transform_error(ct, &add);
812 /* Syntax & transform OK. */
813 /* Convert PQF string to Z39.50 to RPN query struct */
814 YAZ_PQF_Parser pp = yaz_pqf_create();
815 Z_RPNQuery *rpnquery = yaz_pqf_parse(pp, odr, rpn_buf);
820 int code = yaz_pqf_error(pp, &pqf_msg, &off);
821 yaz_log(YLOG_WARN, "PQF Parser Error %s (code %d)",
827 query_result->which = Z_Query_type_1;
828 query_result->u.type_1 = rpnquery;
832 cql_parser_destroy(cp);
836 static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
837 Z_AttributesPlusTerm *result)
841 int srw_error = cql2pqf(odr, cql, ct, &query);
844 if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
845 return 10; /* bad query type */
846 rpn = query.u.type_1;
847 if (!rpn->RPNStructure)
848 return 10; /* must be structure */
849 if (rpn->RPNStructure->which != Z_RPNStructure_simple)
850 return 10; /* must be simple */
851 if (rpn->RPNStructure->u.simple->which != Z_Operand_APT)
852 return 10; /* must be attributes plus term node .. */
853 memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm,
858 static void srw_bend_search(association *assoc, request *req,
860 Z_SRW_searchRetrieveResponse *srw_res,
865 Z_SRW_searchRetrieveRequest *srw_req = sr->u.request;
868 yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest");
869 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
870 if (srw_res->num_diagnostics == 0 && assoc->init)
873 rr.setname = "default";
876 rr.basenames = &srw_req->database;
880 rr.srw_setnameIdleTime = 0;
881 rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
882 rr.query->u.type_1 = 0;
884 if (srw_req->query_type == Z_SRW_query_type_cql)
886 if (assoc->server && assoc->server->cql_transform)
888 int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
889 assoc->server->cql_transform,
893 yaz_add_srw_diagnostic(assoc->encode,
894 &srw_res->diagnostics,
895 &srw_res->num_diagnostics,
901 /* CQL query to backend. Wrap it - Z39.50 style */
902 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
903 ext->direct_reference = odr_getoidbystr(assoc->decode,
904 "1.2.840.10003.16.2");
905 ext->indirect_reference = 0;
907 ext->which = Z_External_CQL;
908 ext->u.cql = srw_req->query.cql;
910 rr.query->which = Z_Query_type_104;
911 rr.query->u.type_104 = ext;
914 else if (srw_req->query_type == Z_SRW_query_type_pqf)
916 Z_RPNQuery *RPNquery;
917 YAZ_PQF_Parser pqf_parser;
919 pqf_parser = yaz_pqf_create ();
921 RPNquery = yaz_pqf_parse (pqf_parser, assoc->decode,
927 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
928 yaz_log(log_requestdetail, "Parse error %d %s near offset %ld",
929 code, pqf_msg, (long) off);
930 srw_error = YAZ_SRW_QUERY_SYNTAX_ERROR;
933 rr.query->which = Z_Query_type_1;
934 rr.query->u.type_1 = RPNquery;
936 yaz_pqf_destroy (pqf_parser);
940 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
941 &srw_res->num_diagnostics,
942 YAZ_SRW_UNSUPP_QUERY_TYPE, 0);
944 if (rr.query->u.type_1)
946 rr.stream = assoc->encode;
947 rr.decode = assoc->decode;
948 rr.print = assoc->print;
950 if ( srw_req->sort.sortKeys )
951 rr.srw_sortKeys = odr_strdup(assoc->encode,
952 srw_req->sort.sortKeys );
953 rr.association = assoc;
959 yaz_log_zquery_level(log_requestdetail,rr.query);
961 (assoc->init->bend_search)(assoc->backend, &rr);
964 if (rr.errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
970 srw_error = yaz_diag_bib1_to_srw (rr.errcode);
971 yaz_add_srw_diagnostic(assoc->encode,
972 &srw_res->diagnostics,
973 &srw_res->num_diagnostics,
974 srw_error, rr.errstring);
979 int number = srw_req->maximumRecords ? *srw_req->maximumRecords : 0;
980 int start = srw_req->startRecord ? *srw_req->startRecord : 1;
982 yaz_log(log_requestdetail, "Request to pack %d+%d out of %d",
983 start, number, rr.hits);
985 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
988 srw_res->resultSetId =
989 odr_strdup(assoc->encode, rr.srw_setname );
990 srw_res->resultSetIdleTime =
991 odr_intdup(assoc->encode, *rr.srw_setnameIdleTime );
999 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1000 &srw_res->num_diagnostics,
1001 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
1006 if (start + number > rr.hits)
1007 number = rr.hits - start + 1;
1009 /* Call bend_present if defined */
1010 if (assoc->init->bend_present)
1012 bend_present_rr *bprr = (bend_present_rr*)
1013 odr_malloc (assoc->decode, sizeof(*bprr));
1014 bprr->setname = "default";
1015 bprr->start = start;
1016 bprr->number = number;
1017 bprr->format = VAL_TEXT_XML;
1018 if (srw_req->recordSchema)
1020 bprr->comp = (Z_RecordComposition *) odr_malloc(assoc->decode,
1021 sizeof(*bprr->comp));
1022 bprr->comp->which = Z_RecordComp_simple;
1023 bprr->comp->u.simple = (Z_ElementSetNames *)
1024 odr_malloc(assoc->decode, sizeof(Z_ElementSetNames));
1025 bprr->comp->u.simple->which = Z_ElementSetNames_generic;
1026 bprr->comp->u.simple->u.generic = srw_req->recordSchema;
1032 bprr->stream = assoc->encode;
1033 bprr->referenceId = 0;
1034 bprr->print = assoc->print;
1035 bprr->request = req;
1036 bprr->association = assoc;
1038 bprr->errstring = NULL;
1039 (*assoc->init->bend_present)(assoc->backend, bprr);
1045 srw_error = yaz_diag_bib1_to_srw (bprr->errcode);
1046 yaz_add_srw_diagnostic(assoc->encode,
1047 &srw_res->diagnostics,
1048 &srw_res->num_diagnostics,
1049 srw_error, bprr->errstring);
1057 int packing = Z_SRW_recordPacking_string;
1058 if (srw_req->recordPacking){
1059 if (!strcmp(srw_req->recordPacking, "xml"))
1060 packing = Z_SRW_recordPacking_XML;
1061 if (!strcmp(srw_req->recordPacking, "url"))
1062 packing = Z_SRW_recordPacking_URL;
1064 srw_res->records = (Z_SRW_record *)
1065 odr_malloc(assoc->encode,
1066 number * sizeof(*srw_res->records));
1068 srw_res->extra_records = (Z_SRW_extra_record **)
1069 odr_malloc(assoc->encode,
1070 number*sizeof(*srw_res->extra_records));
1072 for (i = 0; i<number; i++)
1076 srw_res->records[j].recordPacking = packing;
1077 srw_res->records[j].recordData_buf = 0;
1078 srw_res->extra_records[j] = 0;
1079 yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
1080 errcode = srw_bend_fetch(assoc, i+start, srw_req,
1081 srw_res->records + j);
1084 yaz_add_srw_diagnostic(assoc->encode,
1085 &srw_res->diagnostics,
1086 &srw_res->num_diagnostics,
1087 yaz_diag_bib1_to_srw (errcode),
1092 if (srw_res->records[j].recordData_buf)
1095 srw_res->num_records = j;
1097 srw_res->records = 0;
1106 const char *querystr = "?";
1107 const char *querytype = "?";
1108 WRBUF wr = wrbuf_alloc();
1110 switch (srw_req->query_type)
1112 case Z_SRW_query_type_cql:
1114 querystr = srw_req->query.cql;
1116 case Z_SRW_query_type_pqf:
1118 querystr = srw_req->query.pqf;
1121 wrbuf_printf(wr, "SRWSearch ");
1122 if (srw_res->num_diagnostics)
1123 wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri);
1124 else if (*http_code != 200)
1125 wrbuf_printf(wr, "ERROR info:http/%d", *http_code);
1126 else if (srw_res->numberOfRecords)
1128 wrbuf_printf(wr, "OK %d",
1129 (srw_res->numberOfRecords ?
1130 *srw_res->numberOfRecords : 0));
1132 wrbuf_printf(wr, " %s %d+%d",
1133 (srw_res->resultSetId ?
1134 srw_res->resultSetId : "-"),
1135 (srw_req->startRecord ? *srw_req->startRecord : 1),
1136 srw_res->num_records);
1137 yaz_log(log_request, "%s %s: %s", wrbuf_buf(wr), querytype, querystr);
1142 static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
1145 xmlNodePtr ptr = rr->server_node_ptr;
1148 for (ptr = ptr->children; ptr; ptr = ptr->next)
1150 if (ptr->type != XML_ELEMENT_NODE)
1152 if (!strcmp((const char *) ptr->name, "explain"))
1155 xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
1159 ptr = xmlCopyNode(ptr, 1);
1161 xmlDocSetRootElement(doc, ptr);
1163 xmlDocDumpMemory(doc, &buf_out, &len);
1164 content = (char*) odr_malloc(rr->stream, 1+len);
1165 memcpy(content, buf_out, len);
1166 content[len] = '\0';
1170 rr->explain_buf = content;
1178 static void srw_bend_explain(association *assoc, request *req,
1180 Z_SRW_explainResponse *srw_res,
1183 Z_SRW_explainRequest *srw_req = sr->u.explain_request;
1184 yaz_log(log_requestdetail, "Got SRW ExplainRequest");
1186 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1191 rr.stream = assoc->encode;
1192 rr.decode = assoc->decode;
1193 rr.print = assoc->print;
1195 rr.database = srw_req->database;
1197 rr.server_node_ptr = assoc->server->server_node_ptr;
1199 rr.server_node_ptr = 0;
1200 rr.schema = "http://explain.z3950.org/dtd/2.0/";
1201 if (assoc->init->bend_explain)
1202 (*assoc->init->bend_explain)(assoc->backend, &rr);
1204 srw_bend_explain_default(assoc->backend, &rr);
1208 int packing = Z_SRW_recordPacking_string;
1209 if (srw_req->recordPacking)
1211 if (!strcmp(srw_req->recordPacking, "xml"))
1212 packing = Z_SRW_recordPacking_XML;
1213 else if (!strcmp(srw_req->recordPacking, "url"))
1214 packing = Z_SRW_recordPacking_URL;
1216 srw_res->record.recordSchema = rr.schema;
1217 srw_res->record.recordPacking = packing;
1218 srw_res->record.recordData_buf = rr.explain_buf;
1219 srw_res->record.recordData_len = strlen(rr.explain_buf);
1220 srw_res->record.recordPosition = 0;
1226 static void srw_bend_scan(association *assoc, request *req,
1228 Z_SRW_scanResponse *srw_res,
1231 Z_SRW_scanRequest *srw_req = sr->u.scan_request;
1232 yaz_log(log_requestdetail, "Got SRW ScanRequest");
1235 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1236 if (srw_res->num_diagnostics == 0 && assoc->init)
1238 struct scan_entry *save_entries;
1240 bend_scan_rr *bsrr = (bend_scan_rr *)
1241 odr_malloc (assoc->encode, sizeof(*bsrr));
1242 bsrr->num_bases = 1;
1243 bsrr->basenames = &srw_req->database;
1245 bsrr->num_entries = srw_req->maximumTerms ?
1246 *srw_req->maximumTerms : 10;
1247 bsrr->term_position = srw_req->responsePosition ?
1248 *srw_req->responsePosition : 1;
1251 bsrr->errstring = 0;
1252 bsrr->referenceId = 0;
1253 bsrr->stream = assoc->encode;
1254 bsrr->print = assoc->print;
1255 bsrr->step_size = odr_intdup(assoc->decode, 0);
1258 if (bsrr->num_entries > 0)
1261 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
1263 for (i = 0; i<bsrr->num_entries; i++)
1265 bsrr->entries[i].term = 0;
1266 bsrr->entries[i].occurrences = 0;
1267 bsrr->entries[i].errcode = 0;
1268 bsrr->entries[i].errstring = 0;
1269 bsrr->entries[i].display_term = 0;
1272 save_entries = bsrr->entries; /* save it so we can compare later */
1274 if (srw_req->query_type == Z_SRW_query_type_pqf &&
1275 assoc->init->bend_scan)
1277 Odr_oid *scan_attributeSet = 0;
1279 YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
1281 bsrr->term = yaz_pqf_scan(pqf_parser, assoc->decode,
1283 srw_req->scanClause.pqf);
1284 if (scan_attributeSet &&
1285 (attset = oid_getentbyoid(scan_attributeSet)) &&
1286 (attset->oclass == CLASS_ATTSET ||
1287 attset->oclass == CLASS_GENERAL))
1288 bsrr->attributeset = attset->value;
1290 bsrr->attributeset = VAL_NONE;
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 = VAL_NONE;
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 = VAL_NONE;
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";
1396 wrbuf_printf(wr, "SRWScan %d+%d",
1397 (srw_req->responsePosition ?
1398 *srw_req->responsePosition : 1),
1399 (srw_req->maximumTerms ?
1400 *srw_req->maximumTerms : 1));
1401 if (srw_res->num_diagnostics)
1402 wrbuf_printf(wr, " ERROR %s", srw_res->diagnostics[0].uri);
1404 wrbuf_printf(wr, " OK -");
1405 wrbuf_printf(wr, " %s: %s", querytype, querystr);
1406 yaz_log(log_request, "%s", wrbuf_buf(wr) );
1412 static void srw_bend_update(association *assoc, request *req,
1414 Z_SRW_updateResponse *srw_res,
1417 Z_SRW_updateRequest *srw_req = sr->u.update_request;
1418 yaz_log(YLOG_DEBUG, "Got SRW UpdateRequest");
1419 yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics );
1421 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1426 rr.stream = assoc->encode;
1427 rr.print = assoc->print;
1429 rr.basenames = &srw_req->database;
1430 rr.operation = srw_req->operation;
1431 rr.operation_status = "failed";
1433 rr.record_version = 0;
1434 rr.record_checksum = 0;
1435 rr.record_old_version = 0;
1436 rr.record_packing = "xml";
1437 rr.record_schema = 0;
1439 rr.request_extra_record = 0;
1440 rr.response_extra_record = 0;
1441 rr.extra_request_data = 0;
1442 rr.extra_response_data = 0;
1446 yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] );
1447 yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation );
1448 if ( !strcmp( rr.operation, "delete" ) ){
1449 if ( !srw_req->recordId ){
1450 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1451 &srw_res->num_diagnostics,
1455 rr.record_id = srw_req->recordId;
1457 if ( !srw_req->recordVersion ){
1458 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1459 &srw_res->num_diagnostics,
1460 7, "recordVersion" );
1463 rr.record_version = odr_strdup( assoc->encode,
1464 srw_req->recordVersion );
1467 if ( srw_req->recordOldVersion ){
1468 rr.record_old_version = odr_strdup(assoc->encode,
1469 srw_req->recordOldVersion );
1471 if ( srw_req->extraRequestData ){
1472 rr.extra_request_data = odr_strdup(assoc->encode,
1473 srw_req->extraRequestData );
1476 else if ( !strcmp( rr.operation, "replace" ) ){
1477 if ( !srw_req->recordId ){
1478 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1479 &srw_res->num_diagnostics,
1483 rr.record_id = srw_req->recordId;
1485 if ( srw_req->record.recordSchema == 0 ){
1486 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1487 &srw_res->num_diagnostics,
1488 7, "recordSchema" );
1491 rr.record_schema = odr_strdup(assoc->encode,
1492 srw_req->record.recordSchema );
1494 switch (srw_req->record.recordPacking)
1496 case Z_SRW_recordPacking_string:
1497 rr.record_packing = "string";
1499 case Z_SRW_recordPacking_XML:
1500 rr.record_packing = "xml";
1502 case Z_SRW_recordPacking_URL:
1503 rr.record_packing = "url";
1506 if ( srw_req->record.recordData_len ){
1507 rr.record_data = odr_strdupn(assoc->encode,
1508 srw_req->record.recordData_buf,
1509 srw_req->record.recordData_len );
1510 rr.request_extra_record = srw_req->extra_record;
1513 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1514 &srw_res->num_diagnostics,
1517 if (srw_req->extraRequestData)
1518 rr.extra_request_data = odr_strdup(assoc->encode,
1519 srw_req->extraRequestData );
1521 else if ( !strcmp( rr.operation, "insert" ) )
1523 if ( srw_req->record.recordSchema == 0 ){
1524 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1525 &srw_res->num_diagnostics,
1526 7, "recordSchema" );
1529 rr.record_schema = odr_strdup(assoc->encode,
1530 srw_req->record.recordSchema);
1532 switch (srw_req->record.recordPacking)
1534 case Z_SRW_recordPacking_string:
1535 rr.record_packing = "string";
1537 case Z_SRW_recordPacking_XML:
1538 rr.record_packing = "xml";
1540 case Z_SRW_recordPacking_URL:
1541 rr.record_packing = "url";
1545 if (srw_req->record.recordData_len)
1547 rr.record_data = odr_strdupn(assoc->encode,
1548 srw_req->record.recordData_buf,
1549 srw_req->record.recordData_len );
1550 rr.request_extra_record = srw_req->extra_record;
1553 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1554 &srw_res->num_diagnostics,
1556 if ( srw_req->extraRequestData )
1557 rr.extra_request_data = odr_strdup(assoc->encode,
1558 srw_req->extraRequestData );
1560 if (srw_res->num_diagnostics == 0)
1562 if ( assoc->init->bend_srw_update)
1563 (*assoc->init->bend_srw_update)(assoc->backend, &rr);
1565 yaz_log( YLOG_WARN, "Got No Update function!");
1570 yaz_add_srw_diagnostic(assoc->encode,
1571 &srw_res->diagnostics,
1572 &srw_res->num_diagnostics,
1573 rr.errcode, rr.errstring);
1574 srw_res->recordId = rr.record_id;
1575 srw_res->operationStatus = rr.operation_status;
1576 srw_res->recordVersion = rr.record_version;
1577 srw_res->recordChecksum = rr.record_checksum;
1578 srw_res->extraResponseData = rr.extra_response_data;
1579 srw_res->record.recordPosition = 0;
1580 if (srw_res->num_diagnostics == 0 && rr.record_data)
1582 srw_res->record.recordSchema = rr.record_schema;
1583 srw_res->record.recordPacking = srw_req->record.recordPacking;
1584 srw_res->record.recordData_buf = rr.record_data;
1585 srw_res->record.recordData_len = strlen(rr.record_data);
1586 srw_res->extra_record = rr.response_extra_record;
1590 srw_res->record.recordData_len = 0;
1595 /* check if path is OK (1); BAD (0) */
1596 static int check_path(const char *path)
1600 if (strstr(path, ".."))
1605 static char *read_file(const char *fname, ODR o, int *sz)
1608 FILE *inf = fopen(fname, "rb");
1612 fseek(inf, 0L, SEEK_END);
1615 buf = odr_malloc(o, *sz);
1616 fread(buf, 1, *sz, inf);
1621 static void process_http_request(association *assoc, request *req)
1623 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
1624 ODR o = assoc->encode;
1625 int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */
1627 Z_SOAP *soap_package = 0;
1630 Z_HTTP_Response *hres = 0;
1632 const char *stylesheet = 0; /* for now .. set later */
1633 Z_SRW_diagnostic *diagnostic = 0;
1634 int num_diagnostic = 0;
1635 const char *host = z_HTTP_header_lookup(hreq->headers, "Host");
1637 if (!control_association(assoc, host, 0))
1639 p = z_get_HTTP_Response(o, 404);
1642 if (r == 2 && assoc->server && assoc->server->docpath
1643 && hreq->path[0] == '/'
1645 /* check if path is a proper prefix of documentroot */
1646 strncmp(hreq->path+1, assoc->server->docpath,
1647 strlen(assoc->server->docpath))
1650 if (!check_path(hreq->path))
1652 yaz_log(YLOG_LOG, "File %s access forbidden", hreq->path+1);
1653 p = z_get_HTTP_Response(o, 404);
1657 int content_size = 0;
1658 char *content_buf = read_file(hreq->path+1, o, &content_size);
1661 yaz_log(YLOG_LOG, "File %s not found", hreq->path+1);
1662 p = z_get_HTTP_Response(o, 404);
1666 const char *ctype = 0;
1667 yaz_mime_types types = yaz_mime_types_create();
1669 yaz_mime_types_add(types, "xsl", "application/xml");
1670 yaz_mime_types_add(types, "xml", "application/xml");
1671 yaz_mime_types_add(types, "css", "text/css");
1672 yaz_mime_types_add(types, "html", "text/html");
1673 yaz_mime_types_add(types, "htm", "text/html");
1674 yaz_mime_types_add(types, "txt", "text/plain");
1675 yaz_mime_types_add(types, "js", "application/x-javascript");
1677 yaz_mime_types_add(types, "gif", "image/gif");
1678 yaz_mime_types_add(types, "png", "image/png");
1679 yaz_mime_types_add(types, "jpg", "image/jpeg");
1680 yaz_mime_types_add(types, "jpeg", "image/jpeg");
1682 ctype = yaz_mime_lookup_fname(types, hreq->path);
1685 yaz_log(YLOG_LOG, "No mime type for %s", hreq->path+1);
1686 p = z_get_HTTP_Response(o, 404);
1690 p = z_get_HTTP_Response(o, 200);
1691 hres = p->u.HTTP_Response;
1692 hres->content_buf = content_buf;
1693 hres->content_len = content_size;
1694 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1696 yaz_mime_types_destroy(types);
1704 r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset);
1705 yaz_log(YLOG_DEBUG, "yaz_srw_decode returned %d", r);
1707 if (r == 2) /* not taken */
1709 r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset,
1710 &diagnostic, &num_diagnostic);
1711 yaz_log(YLOG_DEBUG, "yaz_sru_decode returned %d", r);
1713 if (r == 0) /* decode SRW/SRU OK .. */
1715 int http_code = 200;
1716 if (sr->which == Z_SRW_searchRetrieve_request)
1719 yaz_srw_get(assoc->encode, Z_SRW_searchRetrieve_response);
1721 stylesheet = sr->u.request->stylesheet;
1724 res->u.response->diagnostics = diagnostic;
1725 res->u.response->num_diagnostics = num_diagnostic;
1729 srw_bend_search(assoc, req, sr, res->u.response,
1732 if (http_code == 200)
1733 soap_package->u.generic->p = res;
1735 else if (sr->which == Z_SRW_explain_request)
1737 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_explain_response);
1738 stylesheet = sr->u.explain_request->stylesheet;
1741 res->u.explain_response->diagnostics = diagnostic;
1742 res->u.explain_response->num_diagnostics = num_diagnostic;
1744 srw_bend_explain(assoc, req, sr,
1745 res->u.explain_response, &http_code);
1746 if (http_code == 200)
1747 soap_package->u.generic->p = res;
1749 else if (sr->which == Z_SRW_scan_request)
1751 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_scan_response);
1752 stylesheet = sr->u.scan_request->stylesheet;
1755 res->u.scan_response->diagnostics = diagnostic;
1756 res->u.scan_response->num_diagnostics = num_diagnostic;
1758 srw_bend_scan(assoc, req, sr,
1759 res->u.scan_response, &http_code);
1760 if (http_code == 200)
1761 soap_package->u.generic->p = res;
1763 else if (sr->which == Z_SRW_update_request)
1765 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_update_response);
1766 yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest");
1769 res->u.update_response->diagnostics = diagnostic;
1770 res->u.update_response->num_diagnostics = num_diagnostic;
1772 yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics );
1773 srw_bend_update(assoc, req, sr,
1774 res->u.update_response, &http_code);
1775 if (http_code == 200)
1776 soap_package->u.generic->p = res;
1780 yaz_log(log_request, "SOAP ERROR");
1781 /* FIXME - what error, what query */
1783 z_soap_error(assoc->encode, soap_package,
1784 "SOAP-ENV:Client", "Bad method", 0);
1786 if (http_code == 200 || http_code == 500)
1788 static Z_SOAP_Handler soap_handlers[4] = {
1790 {"http://www.loc.gov/zing/srw/", 0,
1791 (Z_SOAP_fun) yaz_srw_codec},
1792 {"http://www.loc.gov/zing/srw/v1.0/", 0,
1793 (Z_SOAP_fun) yaz_srw_codec},
1794 {"http://www.loc.gov/zing/srw/update/", 0,
1795 (Z_SOAP_fun) yaz_ucp_codec},
1801 p = z_get_HTTP_Response(o, 200);
1802 hres = p->u.HTTP_Response;
1804 if (!stylesheet && assoc->server)
1805 stylesheet = assoc->server->stylesheet;
1807 /* empty stylesheet means NO stylesheet */
1808 if (stylesheet && *stylesheet == '\0')
1811 ret = z_soap_codec_enc_xsl(assoc->encode, &soap_package,
1812 &hres->content_buf, &hres->content_len,
1813 soap_handlers, charset, stylesheet);
1814 hres->code = http_code;
1816 strcpy(ctype, "text/xml");
1819 strcat(ctype, "; charset=");
1820 strcat(ctype, charset);
1822 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1825 p = z_get_HTTP_Response(o, http_code);
1829 p = z_get_HTTP_Response(o, 500);
1830 hres = p->u.HTTP_Response;
1831 if (!strcmp(hreq->version, "1.0"))
1833 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1834 if (v && !strcmp(v, "Keep-Alive"))
1838 hres->version = "1.0";
1842 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1843 if (v && !strcmp(v, "close"))
1847 hres->version = "1.1";
1851 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1852 assoc->state = ASSOC_DEAD;
1853 assoc->cs_get_mask = 0;
1858 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1860 if (alive && isdigit(*(const unsigned char *) alive))
1864 if (t < 0 || t > 3600)
1866 iochan_settimeout(assoc->client_chan,t);
1867 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1869 process_gdu_response(assoc, req, p);
1872 static void process_gdu_request(association *assoc, request *req)
1874 if (req->gdu_request->which == Z_GDU_Z3950)
1877 req->apdu_request = req->gdu_request->u.z3950;
1878 if (process_z_request(assoc, req, &msg) < 0)
1879 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1881 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1882 process_http_request(assoc, req);
1885 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1890 * Initiate request processing.
1892 static int process_z_request(association *assoc, request *req, char **msg)
1898 *msg = "Unknown Error";
1899 assert(req && req->state == REQUEST_IDLE);
1900 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1902 *msg = "Missing InitRequest";
1905 switch (req->apdu_request->which)
1907 case Z_APDU_initRequest:
1908 res = process_initRequest(assoc, req); break;
1909 case Z_APDU_searchRequest:
1910 res = process_searchRequest(assoc, req, &fd); break;
1911 case Z_APDU_presentRequest:
1912 res = process_presentRequest(assoc, req, &fd); break;
1913 case Z_APDU_scanRequest:
1914 if (assoc->init->bend_scan)
1915 res = process_scanRequest(assoc, req, &fd);
1918 *msg = "Cannot handle Scan APDU";
1922 case Z_APDU_extendedServicesRequest:
1923 if (assoc->init->bend_esrequest)
1924 res = process_ESRequest(assoc, req, &fd);
1927 *msg = "Cannot handle Extended Services APDU";
1931 case Z_APDU_sortRequest:
1932 if (assoc->init->bend_sort)
1933 res = process_sortRequest(assoc, req, &fd);
1936 *msg = "Cannot handle Sort APDU";
1941 process_close(assoc, req);
1943 case Z_APDU_deleteResultSetRequest:
1944 if (assoc->init->bend_delete)
1945 res = process_deleteRequest(assoc, req, &fd);
1948 *msg = "Cannot handle Delete APDU";
1952 case Z_APDU_segmentRequest:
1953 if (assoc->init->bend_segment)
1955 res = process_segmentRequest (assoc, req);
1959 *msg = "Cannot handle Segment APDU";
1963 case Z_APDU_triggerResourceControlRequest:
1966 *msg = "Bad APDU received";
1971 yaz_log(YLOG_DEBUG, " result immediately available");
1972 retval = process_z_response(assoc, req, res);
1976 yaz_log(YLOG_DEBUG, " result unavailble");
1979 else /* no result yet - one will be provided later */
1983 /* Set up an I/O handler for the fd supplied by the backend */
1985 yaz_log(YLOG_DEBUG, " establishing handler for result");
1986 req->state = REQUEST_PENDING;
1987 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT, 0)))
1989 iochan_setdata(chan, assoc);
1996 * Handle message from the backend.
1998 void backend_response(IOCHAN i, int event)
2000 association *assoc = (association *)iochan_getdata(i);
2001 request *req = request_head(&assoc->incoming);
2005 yaz_log(YLOG_DEBUG, "backend_response");
2006 assert(assoc && req && req->state != REQUEST_IDLE);
2007 /* determine what it is we're waiting for */
2008 switch (req->apdu_request->which)
2010 case Z_APDU_searchRequest:
2011 res = response_searchRequest(assoc, req, 0, &fd); break;
2013 case Z_APDU_presentRequest:
2014 res = response_presentRequest(assoc, req, 0, &fd); break;
2015 case Z_APDU_scanRequest:
2016 res = response_scanRequest(assoc, req, 0, &fd); break;
2019 yaz_log(YLOG_FATAL, "Serious programmer's lapse or bug");
2022 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
2024 yaz_log(YLOG_WARN, "Fatal error when talking to backend");
2025 do_close(assoc, Z_Close_systemProblem, 0);
2029 else if (!res) /* no result yet - try again later */
2031 yaz_log(YLOG_DEBUG, " no result yet");
2032 iochan_setfd(i, fd); /* in case fd has changed */
2037 * Encode response, and transfer the request structure to the outgoing queue.
2039 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
2041 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
2045 if (!z_GDU(assoc->print, &res, 0, 0))
2046 yaz_log(YLOG_WARN, "ODR print error: %s",
2047 odr_errmsg(odr_geterror(assoc->print)));
2048 odr_reset(assoc->print);
2050 if (!z_GDU(assoc->encode, &res, 0, 0))
2052 yaz_log(YLOG_WARN, "ODR error when encoding PDU: %s [element %s]",
2053 odr_errmsg(odr_geterror(assoc->decode)),
2054 odr_getelement(assoc->decode));
2057 req->response = odr_getbuf(assoc->encode, &req->len_response,
2058 &req->size_response);
2059 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
2060 odr_reset(assoc->encode);
2061 req->state = REQUEST_IDLE;
2062 request_enq(&assoc->outgoing, req);
2063 /* turn the work over to the ir_session handler */
2064 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
2065 assoc->cs_put_mask = EVENT_OUTPUT;
2066 /* Is there more work to be done? give that to the input handler too */
2068 if (request_head(&assoc->incoming))
2070 yaz_log (YLOG_DEBUG, "more work to be done");
2071 iochan_setevent(assoc->client_chan, EVENT_WORK);
2078 * Encode response, and transfer the request structure to the outgoing queue.
2080 static int process_z_response(association *assoc, request *req, Z_APDU *res)
2082 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
2083 gres->which = Z_GDU_Z3950;
2084 gres->u.z3950 = res;
2086 return process_gdu_response(assoc, req, gres);
2089 static char *get_vhost(Z_OtherInformation *otherInfo)
2091 return yaz_oi_get_string_oidval(&otherInfo, VAL_PROXY, 1, 0);
2095 * Handle init request.
2096 * At the moment, we don't check the options
2097 * anywhere else in the code - we just try not to do anything that would
2098 * break a naive client. We'll toss 'em into the association block when
2099 * we need them there.
2101 static Z_APDU *process_initRequest(association *assoc, request *reqb)
2103 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
2104 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
2105 Z_InitResponse *resp = apdu->u.initResponse;
2106 bend_initresult *binitres;
2109 statserv_options_block *cb = 0; /* by default no control for backend */
2111 if (control_association(assoc, get_vhost(req->otherInfo), 1))
2112 cb = statserv_getcontrol(); /* got control block for backend */
2114 if (cb && assoc->backend)
2115 (*cb->bend_close)(assoc->backend);
2117 yaz_log(log_requestdetail, "Got initRequest");
2118 if (req->implementationId)
2119 yaz_log(log_requestdetail, "Id: %s",
2120 req->implementationId);
2121 if (req->implementationName)
2122 yaz_log(log_requestdetail, "Name: %s",
2123 req->implementationName);
2124 if (req->implementationVersion)
2125 yaz_log(log_requestdetail, "Version: %s",
2126 req->implementationVersion);
2128 assoc_init_reset(assoc);
2130 assoc->init->auth = req->idAuthentication;
2131 assoc->init->referenceId = req->referenceId;
2133 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2135 Z_CharSetandLanguageNegotiation *negotiation =
2136 yaz_get_charneg_record (req->otherInfo);
2138 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2139 assoc->init->charneg_request = negotiation;
2145 if (req->implementationVersion)
2146 yaz_log(log_requestdetail, "Config: %s",
2149 iochan_settimeout(assoc->client_chan, cb->idle_timeout * 60);
2151 /* we have a backend control block, so call that init function */
2152 if (!(binitres = (*cb->bend_init)(assoc->init)))
2154 yaz_log(YLOG_WARN, "Bad response from backend.");
2157 assoc->backend = binitres->handle;
2161 /* no backend. return error */
2162 binitres = odr_malloc(assoc->encode, sizeof(*binitres));
2163 binitres->errstring = 0;
2164 binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
2165 iochan_settimeout(assoc->client_chan, 10);
2167 if ((assoc->init->bend_sort))
2168 yaz_log (YLOG_DEBUG, "Sort handler installed");
2169 if ((assoc->init->bend_search))
2170 yaz_log (YLOG_DEBUG, "Search handler installed");
2171 if ((assoc->init->bend_present))
2172 yaz_log (YLOG_DEBUG, "Present handler installed");
2173 if ((assoc->init->bend_esrequest))
2174 yaz_log (YLOG_DEBUG, "ESRequest handler installed");
2175 if ((assoc->init->bend_delete))
2176 yaz_log (YLOG_DEBUG, "Delete handler installed");
2177 if ((assoc->init->bend_scan))
2178 yaz_log (YLOG_DEBUG, "Scan handler installed");
2179 if ((assoc->init->bend_segment))
2180 yaz_log (YLOG_DEBUG, "Segment handler installed");
2182 resp->referenceId = req->referenceId;
2184 /* let's tell the client what we can do */
2185 if (ODR_MASK_GET(req->options, Z_Options_search))
2187 ODR_MASK_SET(resp->options, Z_Options_search);
2188 strcat(options, "srch");
2190 if (ODR_MASK_GET(req->options, Z_Options_present))
2192 ODR_MASK_SET(resp->options, Z_Options_present);
2193 strcat(options, " prst");
2195 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
2196 assoc->init->bend_delete)
2198 ODR_MASK_SET(resp->options, Z_Options_delSet);
2199 strcat(options, " del");
2201 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
2202 assoc->init->bend_esrequest)
2204 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
2205 strcat (options, " extendedServices");
2207 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
2209 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
2210 strcat(options, " namedresults");
2212 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
2214 ODR_MASK_SET(resp->options, Z_Options_scan);
2215 strcat(options, " scan");
2217 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
2219 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
2220 strcat(options, " concurrop");
2222 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
2224 ODR_MASK_SET(resp->options, Z_Options_sort);
2225 strcat(options, " sort");
2228 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)
2229 && assoc->init->charneg_response)
2231 Z_OtherInformation **p;
2232 Z_OtherInformationUnit *p0;
2234 yaz_oi_APDU(apdu, &p);
2236 if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
2237 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2239 p0->which = Z_OtherInfo_externallyDefinedInfo;
2240 p0->information.externallyDefinedInfo =
2241 assoc->init->charneg_response;
2243 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2244 strcat(options, " negotiation");
2247 ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
2249 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
2251 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
2252 assoc->version = 1; /* 1 & 2 are equivalent */
2254 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
2256 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
2259 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
2261 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
2265 yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
2266 assoc->maximumRecordSize = *req->maximumRecordSize;
2268 if (cb && assoc->maximumRecordSize > cb->maxrecordsize)
2269 assoc->maximumRecordSize = cb->maxrecordsize;
2270 assoc->preferredMessageSize = *req->preferredMessageSize;
2271 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
2272 assoc->preferredMessageSize = assoc->maximumRecordSize;
2274 resp->preferredMessageSize = &assoc->preferredMessageSize;
2275 resp->maximumRecordSize = &assoc->maximumRecordSize;
2277 resp->implementationId = odr_prepend(assoc->encode,
2278 assoc->init->implementation_id,
2279 resp->implementationId);
2281 resp->implementationName = odr_prepend(assoc->encode,
2282 assoc->init->implementation_name,
2283 odr_prepend(assoc->encode, "GFS", resp->implementationName));
2285 version = odr_strdup(assoc->encode, "$Revision: 1.85 $");
2286 if (strlen(version) > 10) /* check for unexpanded CVS strings */
2287 version[strlen(version)-2] = '\0';
2288 resp->implementationVersion = odr_prepend(assoc->encode,
2289 assoc->init->implementation_version,
2290 odr_prepend(assoc->encode, &version[11],
2291 resp->implementationVersion));
2293 if (binitres->errcode)
2295 assoc->state = ASSOC_DEAD;
2296 resp->userInformationField =
2297 init_diagnostics(assoc->encode, binitres->errcode,
2298 binitres->errstring);
2303 if (!req->idAuthentication)
2304 yaz_log(log_request, "Auth none");
2305 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2307 const char *open = req->idAuthentication->u.open;
2308 const char *slash = strchr(open, '/');
2314 yaz_log(log_request, "Auth open %.*s", len, open);
2316 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2318 const char *user = req->idAuthentication->u.idPass->userId;
2319 const char *group = req->idAuthentication->u.idPass->groupId;
2320 yaz_log(log_request, "Auth idPass %s %s",
2321 user ? user : "-", group ? group : "-");
2323 else if (req->idAuthentication->which
2324 == Z_IdAuthentication_anonymous)
2326 yaz_log(log_request, "Auth anonymous");
2330 yaz_log(log_request, "Auth other");
2335 WRBUF wr = wrbuf_alloc();
2336 wrbuf_printf(wr, "Init ");
2337 if (binitres->errcode)
2338 wrbuf_printf(wr, "ERROR %d", binitres->errcode);
2340 wrbuf_printf(wr, "OK -");
2341 wrbuf_printf(wr, " ID:%s Name:%s Version:%s",
2342 (req->implementationId ? req->implementationId :"-"),
2343 (req->implementationName ?
2344 req->implementationName : "-"),
2345 (req->implementationVersion ?
2346 req->implementationVersion : "-")
2348 yaz_log(log_request, "%s", wrbuf_buf(wr));
2355 * Set the specified `errcode' and `errstring' into a UserInfo-1
2356 * external to be returned to the client in accordance with Z35.90
2357 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
2358 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
2360 static Z_External *init_diagnostics(ODR odr, int error, const char *addinfo)
2362 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2363 addinfo ? " -- " : "", addinfo ? addinfo : "");
2364 return zget_init_diagnostics(odr, error, addinfo);
2368 * nonsurrogate diagnostic record.
2370 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
2372 Z_Records *rec = (Z_Records *) odr_malloc (assoc->encode, sizeof(*rec));
2374 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2375 addinfo ? " -- " : "", addinfo ? addinfo : "");
2377 rec->which = Z_Records_NSD;
2378 rec->u.nonSurrogateDiagnostic = zget_DefaultDiagFormat(assoc->encode,
2384 * surrogate diagnostic.
2386 static Z_NamePlusRecord *surrogatediagrec(association *assoc,
2388 int error, const char *addinfo)
2390 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2391 addinfo ? " -- " : "", addinfo ? addinfo : "");
2392 return zget_surrogateDiagRec(assoc->encode, dbname, error, addinfo);
2395 static Z_Records *pack_records(association *a, char *setname, int start,
2396 int *num, Z_RecordComposition *comp,
2397 int *next, int *pres, oid_value format,
2398 Z_ReferenceId *referenceId,
2399 int *oid, int *errcode)
2401 int recno, total_length = 0, toget = *num, dumped_records = 0;
2402 Z_Records *records =
2403 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
2404 Z_NamePlusRecordList *reclist =
2405 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
2406 Z_NamePlusRecord **list =
2407 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
2409 records->which = Z_Records_DBOSD;
2410 records->u.databaseOrSurDiagnostics = reclist;
2411 reclist->num_records = 0;
2412 reclist->records = list;
2413 *pres = Z_PresentStatus_success;
2417 yaz_log(log_requestdetail, "Request to pack %d+%d %s", start, toget, setname);
2418 yaz_log(log_requestdetail, "pms=%d, mrs=%d", a->preferredMessageSize,
2419 a->maximumRecordSize);
2420 for (recno = start; reclist->num_records < toget; recno++)
2423 Z_NamePlusRecord *thisrec;
2424 int this_length = 0;
2426 * we get the number of bytes allocated on the stream before any
2427 * allocation done by the backend - this should give us a reasonable
2428 * idea of the total size of the data so far.
2430 total_length = odr_total(a->encode) - dumped_records;
2436 freq.last_in_set = 0;
2437 freq.setname = setname;
2438 freq.surrogate_flag = 0;
2439 freq.number = recno;
2441 freq.request_format = format;
2442 freq.request_format_raw = oid;
2443 freq.output_format = format;
2444 freq.output_format_raw = 0;
2445 freq.stream = a->encode;
2446 freq.print = a->print;
2447 freq.referenceId = referenceId;
2450 retrieve_fetch(a, &freq);
2452 *next = freq.last_in_set ? 0 : recno + 1;
2454 /* backend should be able to signal whether error is system-wide
2455 or only pertaining to current record */
2458 if (!freq.surrogate_flag)
2461 *pres = Z_PresentStatus_failure;
2462 /* for 'present request out of range',
2463 set addinfo to record position if not set */
2464 if (freq.errcode == YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE &&
2465 freq.errstring == 0)
2467 sprintf (s, "%d", recno);
2471 *errcode = freq.errcode;
2472 return diagrec(a, freq.errcode, freq.errstring);
2474 reclist->records[reclist->num_records] =
2475 surrogatediagrec(a, freq.basename, freq.errcode,
2477 reclist->num_records++;
2480 if (freq.record == 0) /* no error and no record ? */
2482 *next = 0; /* signal end-of-set and stop */
2486 this_length = freq.len;
2488 this_length = odr_total(a->encode) - total_length - dumped_records;
2489 yaz_log(YLOG_DEBUG, " fetched record, len=%d, total=%d dumped=%d",
2490 this_length, total_length, dumped_records);
2491 if (a->preferredMessageSize > 0 &&
2492 this_length + total_length > a->preferredMessageSize)
2494 /* record is small enough, really */
2495 if (this_length <= a->preferredMessageSize && recno > start)
2497 yaz_log(log_requestdetail, " Dropped last normal-sized record");
2498 *pres = Z_PresentStatus_partial_2;
2501 /* record can only be fetched by itself */
2502 if (this_length < a->maximumRecordSize)
2504 yaz_log(log_requestdetail, " Record > prefmsgsz");
2507 yaz_log(YLOG_DEBUG, " Dropped it");
2508 reclist->records[reclist->num_records] =
2509 surrogatediagrec(a, freq.basename, 16, 0);
2510 reclist->num_records++;
2511 dumped_records += this_length;
2515 else /* too big entirely */
2517 yaz_log(log_requestdetail, "Record > maxrcdsz this=%d max=%d",
2518 this_length, a->maximumRecordSize);
2519 reclist->records[reclist->num_records] =
2520 surrogatediagrec(a, freq.basename, 17, 0);
2521 reclist->num_records++;
2522 dumped_records += this_length;
2527 if (!(thisrec = (Z_NamePlusRecord *)
2528 odr_malloc(a->encode, sizeof(*thisrec))))
2531 thisrec->databaseName = odr_strdup(a->encode, freq.basename);
2533 thisrec->databaseName = 0;
2534 thisrec->which = Z_NamePlusRecord_databaseRecord;
2536 if (freq.output_format_raw)
2538 struct oident *ident = oid_getentbyoid(freq.output_format_raw);
2539 freq.output_format = ident->value;
2541 thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
2542 freq.record, freq.len);
2543 if (!thisrec->u.databaseRecord)
2545 reclist->records[reclist->num_records] = thisrec;
2546 reclist->num_records++;
2548 *num = reclist->num_records;
2552 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
2555 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2556 bend_search_rr *bsrr =
2557 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
2559 yaz_log(log_requestdetail, "Got SearchRequest.");
2561 bsrr->request = reqb;
2562 bsrr->association = assoc;
2563 bsrr->referenceId = req->referenceId;
2564 save_referenceId (reqb, bsrr->referenceId);
2565 bsrr->srw_sortKeys = 0;
2566 bsrr->srw_setname = 0;
2567 bsrr->srw_setnameIdleTime = 0;
2569 yaz_log (log_requestdetail, "ResultSet '%s'", req->resultSetName);
2570 if (req->databaseNames)
2573 for (i = 0; i < req->num_databaseNames; i++)
2574 yaz_log (log_requestdetail, "Database '%s'", req->databaseNames[i]);
2577 yaz_log_zquery_level(log_requestdetail,req->query);
2579 if (assoc->init->bend_search)
2581 bsrr->setname = req->resultSetName;
2582 bsrr->replace_set = *req->replaceIndicator;
2583 bsrr->num_bases = req->num_databaseNames;
2584 bsrr->basenames = req->databaseNames;
2585 bsrr->query = req->query;
2586 bsrr->stream = assoc->encode;
2587 nmem_transfer(bsrr->stream->mem, reqb->request_mem);
2588 bsrr->decode = assoc->decode;
2589 bsrr->print = assoc->print;
2592 bsrr->errstring = NULL;
2593 bsrr->search_info = NULL;
2595 if (assoc->server && assoc->server->cql_transform
2596 && req->query->which == Z_Query_type_104
2597 && req->query->u.type_104->which == Z_External_CQL)
2599 /* have a CQL query and a CQL to PQF transform .. */
2601 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
2602 assoc->server->cql_transform, bsrr->query);
2604 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2607 (assoc->init->bend_search)(assoc->backend, bsrr);
2608 if (!bsrr->request) /* backend not ready with the search response */
2609 return 0; /* should not be used any more */
2613 /* FIXME - make a diagnostic for it */
2614 yaz_log(YLOG_WARN,"Search not supported ?!?!");
2616 return response_searchRequest(assoc, reqb, bsrr, fd);
2619 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
2622 * Prepare a searchresponse based on the backend results. We probably want
2623 * to look at making the fetching of records nonblocking as well, but
2624 * so far, we'll keep things simple.
2625 * If bsrt is null, that means we're called in response to a communications
2626 * event, and we'll have to get the response for ourselves.
2628 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
2629 bend_search_rr *bsrt, int *fd)
2631 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2632 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2633 Z_SearchResponse *resp = (Z_SearchResponse *)
2634 odr_malloc (assoc->encode, sizeof(*resp));
2635 int *nulint = odr_intdup (assoc->encode, 0);
2636 bool_t *sr = odr_intdup(assoc->encode, 1);
2637 int *next = odr_intdup(assoc->encode, 0);
2638 int *none = odr_intdup(assoc->encode, Z_SearchResponse_none);
2641 apdu->which = Z_APDU_searchResponse;
2642 apdu->u.searchResponse = resp;
2643 resp->referenceId = req->referenceId;
2644 resp->additionalSearchInfo = 0;
2645 resp->otherInfo = 0;
2647 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
2649 yaz_log(YLOG_FATAL, "Bad result from backend");
2652 else if (bsrt->errcode)
2654 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
2655 resp->resultCount = nulint;
2656 resp->numberOfRecordsReturned = nulint;
2657 resp->nextResultSetPosition = nulint;
2658 resp->searchStatus = nulint;
2659 resp->resultSetStatus = none;
2660 resp->presentStatus = 0;
2664 int *toget = odr_intdup(assoc->encode, 0);
2665 int *presst = odr_intdup(assoc->encode, 0);
2666 Z_RecordComposition comp, *compp = 0;
2668 yaz_log (log_requestdetail, "resultCount: %d", bsrt->hits);
2671 resp->resultCount = &bsrt->hits;
2673 comp.which = Z_RecordComp_simple;
2674 /* how many records does the user agent want, then? */
2675 if (bsrt->hits <= *req->smallSetUpperBound)
2677 *toget = bsrt->hits;
2678 if ((comp.u.simple = req->smallSetElementSetNames))
2681 else if (bsrt->hits < *req->largeSetLowerBound)
2683 *toget = *req->mediumSetPresentNumber;
2684 if (*toget > bsrt->hits)
2685 *toget = bsrt->hits;
2686 if ((comp.u.simple = req->mediumSetElementSetNames))
2692 if (*toget && !resp->records)
2697 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
2700 form = prefformat->value;
2702 /* Call bend_present if defined */
2703 if (assoc->init->bend_present)
2705 bend_present_rr *bprr = (bend_present_rr *)
2706 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2707 bprr->setname = req->resultSetName;
2709 bprr->number = *toget;
2710 bprr->format = form;
2712 bprr->referenceId = req->referenceId;
2713 bprr->stream = assoc->encode;
2714 bprr->print = assoc->print;
2715 bprr->request = reqb;
2716 bprr->association = assoc;
2718 bprr->errstring = NULL;
2719 (*assoc->init->bend_present)(assoc->backend, bprr);
2725 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2726 *resp->presentStatus = Z_PresentStatus_failure;
2731 resp->records = pack_records(assoc, req->resultSetName, 1,
2732 toget, compp, next, presst, form, req->referenceId,
2733 req->preferredRecordSyntax, NULL);
2736 resp->numberOfRecordsReturned = toget;
2737 returnedrecs = *toget;
2738 resp->nextResultSetPosition = next;
2739 resp->searchStatus = sr;
2740 resp->resultSetStatus = 0;
2741 resp->presentStatus = presst;
2745 if (*resp->resultCount)
2747 resp->numberOfRecordsReturned = nulint;
2748 resp->nextResultSetPosition = next;
2749 resp->searchStatus = sr;
2750 resp->resultSetStatus = 0;
2751 resp->presentStatus = 0;
2754 resp->additionalSearchInfo = bsrt->search_info;
2758 WRBUF wr = wrbuf_alloc();
2760 wrbuf_printf(wr, "ERROR %d", bsrt->errcode);
2762 wrbuf_printf(wr, "OK %d", bsrt->hits);
2763 wrbuf_printf(wr, " %s 1+%d ",
2764 req->resultSetName, returnedrecs);
2765 yaz_query_to_wrbuf(wr, req->query);
2767 yaz_log(log_request, "Search %s", wrbuf_buf(wr));
2774 * Maybe we got a little over-friendly when we designed bend_fetch to
2775 * get only one record at a time. Some backends can optimise multiple-record
2776 * fetches, and at any rate, there is some overhead involved in
2777 * all that selecting and hopping around. Problem is, of course, that the
2778 * frontend can't know ahead of time how many records it'll need to
2779 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
2780 * is downright lousy as a bulk data transfer protocol.
2782 * To start with, we'll do the fetching of records from the backend
2783 * in one operation: To save some trips in and out of the event-handler,
2784 * and to simplify the interface to pack_records. At any rate, asynch
2785 * operation is more fun in operations that have an unpredictable execution
2786 * speed - which is normally more true for search than for present.
2788 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
2791 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
2795 Z_PresentResponse *resp;
2799 const char *errstring = 0;
2801 yaz_log(log_requestdetail, "Got PresentRequest.");
2803 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
2806 form = prefformat->value;
2807 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
2809 resp->presentStatus = odr_intdup(assoc->encode, 0);
2810 if (assoc->init->bend_present)
2812 bend_present_rr *bprr = (bend_present_rr *)
2813 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2814 bprr->setname = req->resultSetId;
2815 bprr->start = *req->resultSetStartPoint;
2816 bprr->number = *req->numberOfRecordsRequested;
2817 bprr->format = form;
2818 bprr->comp = req->recordComposition;
2819 bprr->referenceId = req->referenceId;
2820 bprr->stream = assoc->encode;
2821 bprr->print = assoc->print;
2822 bprr->request = reqb;
2823 bprr->association = assoc;
2825 bprr->errstring = NULL;
2826 (*assoc->init->bend_present)(assoc->backend, bprr);
2829 return 0; /* should not happen */
2832 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2833 *resp->presentStatus = Z_PresentStatus_failure;
2834 errcode = bprr->errcode;
2835 errstring = bprr->errstring;
2838 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2839 next = odr_intdup(assoc->encode, 0);
2840 num = odr_intdup(assoc->encode, 0);
2842 apdu->which = Z_APDU_presentResponse;
2843 apdu->u.presentResponse = resp;
2844 resp->referenceId = req->referenceId;
2845 resp->otherInfo = 0;
2849 *num = *req->numberOfRecordsRequested;
2851 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
2852 num, req->recordComposition, next,
2853 resp->presentStatus,
2854 form, req->referenceId, req->preferredRecordSyntax,
2859 WRBUF wr = wrbuf_alloc();
2860 wrbuf_printf(wr, "Present ");
2862 if (*resp->presentStatus == Z_PresentStatus_failure)
2863 wrbuf_printf(wr, "ERROR %d", errcode);
2864 else if (*resp->presentStatus == Z_PresentStatus_success)
2865 wrbuf_printf(wr, "OK -");
2867 wrbuf_printf(wr, "Partial %d", *resp->presentStatus);
2869 wrbuf_printf(wr, " %s %d+%d ",
2870 req->resultSetId, *req->resultSetStartPoint,
2871 *req->numberOfRecordsRequested);
2872 yaz_log(log_request, "%s", wrbuf_buf(wr) );
2877 resp->numberOfRecordsReturned = num;
2878 resp->nextResultSetPosition = next;
2884 * Scan was implemented rather in a hurry, and with support for only the basic
2885 * elements of the service in the backend API. Suggestions are welcome.
2887 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
2889 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
2890 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2891 Z_ScanResponse *res = (Z_ScanResponse *)
2892 odr_malloc (assoc->encode, sizeof(*res));
2893 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2894 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2895 Z_ListEntries *ents = (Z_ListEntries *)
2896 odr_malloc (assoc->encode, sizeof(*ents));
2897 Z_DiagRecs *diagrecs_p = NULL;
2899 bend_scan_rr *bsrr = (bend_scan_rr *)
2900 odr_malloc (assoc->encode, sizeof(*bsrr));
2901 struct scan_entry *save_entries;
2903 yaz_log(log_requestdetail, "Got ScanRequest");
2905 apdu->which = Z_APDU_scanResponse;
2906 apdu->u.scanResponse = res;
2907 res->referenceId = req->referenceId;
2909 /* if step is absent, set it to 0 */
2910 res->stepSize = odr_intdup(assoc->encode, 0);
2912 *res->stepSize = *req->stepSize;
2914 res->scanStatus = scanStatus;
2915 res->numberOfEntriesReturned = numberOfEntriesReturned;
2916 res->positionOfTerm = 0;
2917 res->entries = ents;
2918 ents->num_entries = 0;
2919 ents->entries = NULL;
2920 ents->num_nonsurrogateDiagnostics = 0;
2921 ents->nonsurrogateDiagnostics = NULL;
2922 res->attributeSet = 0;
2925 if (req->databaseNames)
2928 for (i = 0; i < req->num_databaseNames; i++)
2929 yaz_log (log_requestdetail, "Database '%s'", req->databaseNames[i]);
2931 bsrr->scanClause = 0;
2933 bsrr->errstring = 0;
2934 bsrr->num_bases = req->num_databaseNames;
2935 bsrr->basenames = req->databaseNames;
2936 bsrr->num_entries = *req->numberOfTermsRequested;
2937 bsrr->term = req->termListAndStartPoint;
2938 bsrr->referenceId = req->referenceId;
2939 bsrr->stream = assoc->encode;
2940 bsrr->print = assoc->print;
2941 bsrr->step_size = res->stepSize;
2943 /* For YAZ 2.0 and earlier it was the backend handler that
2944 initialized entries (member display_term did not exist)
2945 YAZ 2.0 and later sets 'entries' and initialize all members
2946 including 'display_term'. If YAZ 2.0 or later sees that
2947 entries was modified - we assume that it is an old handler and
2948 that 'display_term' is _not_ set.
2950 if (bsrr->num_entries > 0)
2953 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
2955 for (i = 0; i<bsrr->num_entries; i++)
2957 bsrr->entries[i].term = 0;
2958 bsrr->entries[i].occurrences = 0;
2959 bsrr->entries[i].errcode = 0;
2960 bsrr->entries[i].errstring = 0;
2961 bsrr->entries[i].display_term = 0;
2964 save_entries = bsrr->entries; /* save it so we can compare later */
2966 if (req->attributeSet &&
2967 (attset = oid_getentbyoid(req->attributeSet)) &&
2968 (attset->oclass == CLASS_ATTSET || attset->oclass == CLASS_GENERAL))
2969 bsrr->attributeset = attset->value;
2971 bsrr->attributeset = VAL_NONE;
2972 log_scan_term_level (log_requestdetail, req->termListAndStartPoint,
2973 bsrr->attributeset);
2974 bsrr->term_position = req->preferredPositionInResponse ?
2975 *req->preferredPositionInResponse : 1;
2977 ((int (*)(void *, bend_scan_rr *))
2978 (*assoc->init->bend_scan))(assoc->backend, bsrr);
2981 diagrecs_p = zget_DiagRecs(assoc->encode,
2982 bsrr->errcode, bsrr->errstring);
2986 Z_Entry **tab = (Z_Entry **)
2987 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
2989 if (bsrr->status == BEND_SCAN_PARTIAL)
2990 *scanStatus = Z_Scan_partial_5;
2992 *scanStatus = Z_Scan_success;
2993 ents->entries = tab;
2994 ents->num_entries = bsrr->num_entries;
2995 res->numberOfEntriesReturned = &ents->num_entries;
2996 res->positionOfTerm = &bsrr->term_position;
2997 for (i = 0; i < bsrr->num_entries; i++)
3003 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
3004 if (bsrr->entries[i].occurrences >= 0)
3006 e->which = Z_Entry_termInfo;
3007 e->u.termInfo = t = (Z_TermInfo *)
3008 odr_malloc(assoc->encode, sizeof(*t));
3009 t->suggestedAttributes = 0;
3011 if (save_entries == bsrr->entries &&
3012 bsrr->entries[i].display_term)
3014 /* the entries was _not_ set by the handler. So it's
3015 safe to test for new member display_term. It is
3018 t->displayTerm = odr_strdup(assoc->encode,
3019 bsrr->entries[i].display_term);
3021 t->alternativeTerm = 0;
3022 t->byAttributes = 0;
3023 t->otherTermInfo = 0;
3024 t->globalOccurrences = &bsrr->entries[i].occurrences;
3025 t->term = (Z_Term *)
3026 odr_malloc(assoc->encode, sizeof(*t->term));
3027 t->term->which = Z_Term_general;
3028 t->term->u.general = o =
3029 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
3030 o->buf = (unsigned char *)
3031 odr_malloc(assoc->encode, o->len = o->size =
3032 strlen(bsrr->entries[i].term));
3033 memcpy(o->buf, bsrr->entries[i].term, o->len);
3034 yaz_log(YLOG_DEBUG, " term #%d: '%s' (%d)", i,
3035 bsrr->entries[i].term, bsrr->entries[i].occurrences);
3039 Z_DiagRecs *drecs = zget_DiagRecs(assoc->encode,
3040 bsrr->entries[i].errcode,
3041 bsrr->entries[i].errstring);
3042 assert (drecs->num_diagRecs == 1);
3043 e->which = Z_Entry_surrogateDiagnostic;
3044 assert (drecs->diagRecs[0]);
3045 e->u.surrogateDiagnostic = drecs->diagRecs[0];
3051 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
3052 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
3056 WRBUF wr = wrbuf_alloc();
3058 wr_diag(wr, bsrr->errcode, bsrr->errstring);
3059 else if (*res->scanStatus == Z_Scan_success)
3060 wrbuf_printf(wr, "OK");
3062 wrbuf_printf(wr, "Partial");
3064 wrbuf_printf(wr, " %d+%d %d ",
3065 (req->preferredPositionInResponse ?
3066 *req->preferredPositionInResponse : 1),
3067 *req->numberOfTermsRequested,
3068 (res->stepSize ? *res->stepSize : 0));
3069 yaz_scan_to_wrbuf(wr, req->termListAndStartPoint,
3070 bsrr->attributeset);
3071 yaz_log(log_request, "Scan %s", wrbuf_buf(wr) );
3077 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
3081 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
3082 Z_SortResponse *res = (Z_SortResponse *)
3083 odr_malloc (assoc->encode, sizeof(*res));
3084 bend_sort_rr *bsrr = (bend_sort_rr *)
3085 odr_malloc (assoc->encode, sizeof(*bsrr));
3087 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3089 yaz_log(log_requestdetail, "Got SortRequest.");
3091 bsrr->num_input_setnames = req->num_inputResultSetNames;
3092 for (i=0;i<req->num_inputResultSetNames;i++)
3093 yaz_log(log_requestdetail, "Input resultset: '%s'",
3094 req->inputResultSetNames[i]);
3095 bsrr->input_setnames = req->inputResultSetNames;
3096 bsrr->referenceId = req->referenceId;
3097 bsrr->output_setname = req->sortedResultSetName;
3098 yaz_log(log_requestdetail, "Output resultset: '%s'",
3099 req->sortedResultSetName);
3100 bsrr->sort_sequence = req->sortSequence;
3101 /*FIXME - dump those sequences too */
3102 bsrr->stream = assoc->encode;
3103 bsrr->print = assoc->print;
3105 bsrr->sort_status = Z_SortResponse_failure;
3107 bsrr->errstring = 0;
3109 (*assoc->init->bend_sort)(assoc->backend, bsrr);
3111 res->referenceId = bsrr->referenceId;
3112 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
3113 res->resultSetStatus = 0;
3116 Z_DiagRecs *dr = zget_DiagRecs(assoc->encode,
3117 bsrr->errcode, bsrr->errstring);
3118 res->diagnostics = dr->diagRecs;
3119 res->num_diagnostics = dr->num_diagRecs;
3123 res->num_diagnostics = 0;
3124 res->diagnostics = 0;
3126 res->resultCount = 0;
3129 apdu->which = Z_APDU_sortResponse;
3130 apdu->u.sortResponse = res;
3133 WRBUF wr = wrbuf_alloc();
3134 wrbuf_printf(wr, "Sort ");
3136 wrbuf_printf(wr, " ERROR %d", bsrr->errcode);
3138 wrbuf_printf(wr, "OK -");
3139 wrbuf_printf(wr, " (");
3140 for (i = 0; i<req->num_inputResultSetNames; i++)
3143 wrbuf_printf(wr, ",");
3144 wrbuf_printf(wr, req->inputResultSetNames[i]);
3146 wrbuf_printf(wr, ")->%s ",req->sortedResultSetName);
3148 yaz_log(log_request, "%s", wrbuf_buf(wr) );
3154 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
3158 Z_DeleteResultSetRequest *req =
3159 reqb->apdu_request->u.deleteResultSetRequest;
3160 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
3161 odr_malloc (assoc->encode, sizeof(*res));
3162 bend_delete_rr *bdrr = (bend_delete_rr *)
3163 odr_malloc (assoc->encode, sizeof(*bdrr));
3164 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3166 yaz_log(log_requestdetail, "Got DeleteRequest.");
3168 bdrr->num_setnames = req->num_resultSetList;
3169 bdrr->setnames = req->resultSetList;
3170 for (i = 0; i<req->num_resultSetList; i++)
3171 yaz_log(log_requestdetail, "resultset: '%s'",
3172 req->resultSetList[i]);
3173 bdrr->stream = assoc->encode;
3174 bdrr->print = assoc->print;
3175 bdrr->function = *req->deleteFunction;
3176 bdrr->referenceId = req->referenceId;
3178 if (bdrr->num_setnames > 0)
3180 bdrr->statuses = (int*)
3181 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
3182 bdrr->num_setnames);
3183 for (i = 0; i < bdrr->num_setnames; i++)
3184 bdrr->statuses[i] = 0;
3186 (*assoc->init->bend_delete)(assoc->backend, bdrr);
3188 res->referenceId = req->referenceId;
3190 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
3192 res->deleteListStatuses = 0;
3193 if (bdrr->num_setnames > 0)
3196 res->deleteListStatuses = (Z_ListStatuses *)
3197 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
3198 res->deleteListStatuses->num = bdrr->num_setnames;
3199 res->deleteListStatuses->elements =
3201 odr_malloc (assoc->encode,
3202 sizeof(*res->deleteListStatuses->elements) *
3203 bdrr->num_setnames);
3204 for (i = 0; i<bdrr->num_setnames; i++)
3206 res->deleteListStatuses->elements[i] =
3208 odr_malloc (assoc->encode,
3209 sizeof(**res->deleteListStatuses->elements));
3210 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
3211 res->deleteListStatuses->elements[i]->id =
3212 odr_strdup (assoc->encode, bdrr->setnames[i]);
3215 res->numberNotDeleted = 0;
3216 res->bulkStatuses = 0;
3217 res->deleteMessage = 0;
3220 apdu->which = Z_APDU_deleteResultSetResponse;
3221 apdu->u.deleteResultSetResponse = res;
3224 WRBUF wr = wrbuf_alloc();
3225 wrbuf_printf(wr, "Delete ");
3226 if (bdrr->delete_status)
3227 wrbuf_printf(wr, "ERROR %d", bdrr->delete_status);
3229 wrbuf_printf(wr, "OK -");
3230 for (i = 0; i<req->num_resultSetList; i++)
3231 wrbuf_printf(wr, " %s ", req->resultSetList[i]);
3232 yaz_log(log_request, "%s", wrbuf_buf(wr) );
3238 static void process_close(association *assoc, request *reqb)
3240 Z_Close *req = reqb->apdu_request->u.close;
3241 static char *reasons[] =
3248 "securityViolation",
3255 yaz_log(log_requestdetail, "Got Close, reason %s, message %s",
3256 reasons[*req->closeReason], req->diagnosticInformation ?
3257 req->diagnosticInformation : "NULL");
3258 if (assoc->version < 3) /* to make do_force respond with close */
3260 do_close_req(assoc, Z_Close_finished,
3261 "Association terminated by client", reqb);
3262 yaz_log(log_request,"Close OK");
3265 void save_referenceId (request *reqb, Z_ReferenceId *refid)
3269 reqb->len_refid = refid->len;
3270 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
3271 memcpy (reqb->refid, refid->buf, refid->len);
3275 reqb->len_refid = 0;
3280 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
3282 process_z_response (a, req, res);
3285 bend_request bend_request_mk (bend_association a)
3287 request *nreq = request_get (&a->outgoing);
3288 nreq->request_mem = nmem_create ();
3292 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
3297 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
3298 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
3299 id->len = id->size = req->len_refid;
3300 memcpy (id->buf, req->refid, req->len_refid);
3304 void bend_request_destroy (bend_request *req)
3306 nmem_destroy((*req)->request_mem);
3307 request_release(*req);
3311 int bend_backend_respond (bend_association a, bend_request req)
3315 r = process_z_request (a, req, &msg);
3317 yaz_log (YLOG_WARN, "%s", msg);
3321 void bend_request_setdata(bend_request r, void *p)
3326 void *bend_request_getdata(bend_request r)
3328 return r->clientData;
3331 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
3333 bend_segment_rr req;
3335 req.segment = reqb->apdu_request->u.segmentRequest;
3336 req.stream = assoc->encode;
3337 req.decode = assoc->decode;
3338 req.print = assoc->print;
3339 req.association = assoc;
3341 (*assoc->init->bend_segment)(assoc->backend, &req);
3346 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
3348 bend_esrequest_rr esrequest;
3349 const char *ext_name = "unknown";
3351 Z_ExtendedServicesRequest *req =
3352 reqb->apdu_request->u.extendedServicesRequest;
3353 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
3355 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
3357 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
3358 esrequest.stream = assoc->encode;
3359 esrequest.decode = assoc->decode;
3360 esrequest.print = assoc->print;
3361 esrequest.errcode = 0;
3362 esrequest.errstring = NULL;
3363 esrequest.request = reqb;
3364 esrequest.association = assoc;
3365 esrequest.taskPackage = 0;
3366 esrequest.referenceId = req->referenceId;
3369 if (esrequest.esr && esrequest.esr->taskSpecificParameters)
3371 switch(esrequest.esr->taskSpecificParameters->which)
3373 case Z_External_itemOrder:
3374 ext_name = "ItemOrder"; break;
3375 case Z_External_update:
3376 ext_name = "Update"; break;
3377 case Z_External_update0:
3378 ext_name = "Update0"; break;
3379 case Z_External_ESAdmin:
3380 ext_name = "Admin"; break;
3385 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
3387 /* If the response is being delayed, return NULL */
3388 if (esrequest.request == NULL)
3391 resp->referenceId = req->referenceId;
3393 if (esrequest.errcode == -1)
3395 /* Backend service indicates request will be processed */
3396 yaz_log(log_request, "Extended Service: %s (accepted)", ext_name);
3397 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
3399 else if (esrequest.errcode == 0)
3401 /* Backend service indicates request will be processed */
3402 yaz_log(log_request, "Extended Service: %s (done)", ext_name);
3403 *resp->operationStatus = Z_ExtendedServicesResponse_done;
3407 Z_DiagRecs *diagRecs =
3408 zget_DiagRecs(assoc->encode, esrequest.errcode,
3409 esrequest.errstring);
3410 /* Backend indicates error, request will not be processed */
3411 yaz_log(log_request, "Extended Service: %s (failed)", ext_name);
3412 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
3413 resp->num_diagnostics = diagRecs->num_diagRecs;
3414 resp->diagnostics = diagRecs->diagRecs;
3417 WRBUF wr = wrbuf_alloc();
3418 wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics);
3419 yaz_log(log_request, "EsRequest %s", wrbuf_buf(wr) );
3424 /* Do something with the members of bend_extendedservice */
3425 if (esrequest.taskPackage)
3426 resp->taskPackage = z_ext_record (assoc->encode, VAL_EXTENDED,
3427 (const char *) esrequest.taskPackage,
3429 yaz_log(YLOG_DEBUG,"Send the result apdu");
3436 * indent-tabs-mode: nil
3438 * vim: shiftwidth=4 tabstop=8 expandtab