2 * Copyright (C) 1995-2005, Index Data ApS
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.82 2006-05-14 20:03:19 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>
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 int packing = Z_SRW_recordPacking_string;
1007 if (start + number > rr.hits)
1008 number = rr.hits - start + 1;
1009 if (srw_req->recordPacking){
1010 if (!strcmp(srw_req->recordPacking, "xml"))
1011 packing = Z_SRW_recordPacking_XML;
1012 if (!strcmp(srw_req->recordPacking, "url"))
1013 packing = Z_SRW_recordPacking_URL;
1015 srw_res->records = (Z_SRW_record *)
1016 odr_malloc(assoc->encode,
1017 number * sizeof(*srw_res->records));
1019 srw_res->extra_records = (Z_SRW_extra_record **)
1020 odr_malloc(assoc->encode,
1021 number*sizeof(*srw_res->extra_records));
1023 for (i = 0; i<number; i++)
1027 srw_res->records[j].recordPacking = packing;
1028 srw_res->records[j].recordData_buf = 0;
1029 srw_res->extra_records[j] = 0;
1030 yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
1031 errcode = srw_bend_fetch(assoc, i+start, srw_req,
1032 srw_res->records + j);
1035 yaz_add_srw_diagnostic(assoc->encode,
1036 &srw_res->diagnostics,
1037 &srw_res->num_diagnostics,
1038 yaz_diag_bib1_to_srw (errcode),
1043 if (srw_res->records[j].recordData_buf)
1046 srw_res->num_records = j;
1048 srw_res->records = 0;
1056 const char *querystr = "?";
1057 const char *querytype = "?";
1058 WRBUF wr = wrbuf_alloc();
1060 switch (srw_req->query_type)
1062 case Z_SRW_query_type_cql:
1064 querystr = srw_req->query.cql;
1066 case Z_SRW_query_type_pqf:
1068 querystr = srw_req->query.pqf;
1071 wrbuf_printf(wr, "SRWSearch ");
1072 if (srw_res->num_diagnostics)
1073 wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri);
1074 else if (*http_code != 200)
1075 wrbuf_printf(wr, "ERROR info:http/%d", *http_code);
1076 else if (srw_res->numberOfRecords)
1078 wrbuf_printf(wr, "OK %d",
1079 (srw_res->numberOfRecords ?
1080 *srw_res->numberOfRecords : 0));
1082 wrbuf_printf(wr, " %s %d+%d",
1083 (srw_res->resultSetId ?
1084 srw_res->resultSetId : "-"),
1085 (srw_req->startRecord ? *srw_req->startRecord : 1),
1086 srw_res->num_records);
1087 yaz_log(log_request, "%s %s: %s", wrbuf_buf(wr), querytype, querystr);
1092 static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
1095 xmlNodePtr ptr = rr->server_node_ptr;
1098 for (ptr = ptr->children; ptr; ptr = ptr->next)
1100 if (ptr->type != XML_ELEMENT_NODE)
1102 if (!strcmp((const char *) ptr->name, "explain"))
1105 xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
1109 ptr = xmlCopyNode(ptr, 1);
1111 xmlDocSetRootElement(doc, ptr);
1113 xmlDocDumpMemory(doc, &buf_out, &len);
1114 content = (char*) odr_malloc(rr->stream, 1+len);
1115 memcpy(content, buf_out, len);
1116 content[len] = '\0';
1120 rr->explain_buf = content;
1128 static void srw_bend_explain(association *assoc, request *req,
1130 Z_SRW_explainResponse *srw_res,
1133 Z_SRW_explainRequest *srw_req = sr->u.explain_request;
1134 yaz_log(log_requestdetail, "Got SRW ExplainRequest");
1136 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1141 rr.stream = assoc->encode;
1142 rr.decode = assoc->decode;
1143 rr.print = assoc->print;
1145 rr.database = srw_req->database;
1147 rr.server_node_ptr = assoc->server->server_node_ptr;
1149 rr.server_node_ptr = 0;
1150 rr.schema = "http://explain.z3950.org/dtd/2.0/";
1151 if (assoc->init->bend_explain)
1152 (*assoc->init->bend_explain)(assoc->backend, &rr);
1154 srw_bend_explain_default(assoc->backend, &rr);
1158 int packing = Z_SRW_recordPacking_string;
1159 if (srw_req->recordPacking)
1161 if (!strcmp(srw_req->recordPacking, "xml"))
1162 packing = Z_SRW_recordPacking_XML;
1163 else if (!strcmp(srw_req->recordPacking, "url"))
1164 packing = Z_SRW_recordPacking_URL;
1166 srw_res->record.recordSchema = rr.schema;
1167 srw_res->record.recordPacking = packing;
1168 srw_res->record.recordData_buf = rr.explain_buf;
1169 srw_res->record.recordData_len = strlen(rr.explain_buf);
1170 srw_res->record.recordPosition = 0;
1176 static void srw_bend_scan(association *assoc, request *req,
1178 Z_SRW_scanResponse *srw_res,
1181 Z_SRW_scanRequest *srw_req = sr->u.scan_request;
1182 yaz_log(log_requestdetail, "Got SRW ScanRequest");
1185 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1186 if (srw_res->num_diagnostics == 0 && assoc->init)
1188 struct scan_entry *save_entries;
1190 bend_scan_rr *bsrr = (bend_scan_rr *)
1191 odr_malloc (assoc->encode, sizeof(*bsrr));
1192 bsrr->num_bases = 1;
1193 bsrr->basenames = &srw_req->database;
1195 bsrr->num_entries = srw_req->maximumTerms ?
1196 *srw_req->maximumTerms : 10;
1197 bsrr->term_position = srw_req->responsePosition ?
1198 *srw_req->responsePosition : 1;
1201 bsrr->errstring = 0;
1202 bsrr->referenceId = 0;
1203 bsrr->stream = assoc->encode;
1204 bsrr->print = assoc->print;
1205 bsrr->step_size = odr_intdup(assoc->decode, 0);
1208 if (bsrr->num_entries > 0)
1211 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
1213 for (i = 0; i<bsrr->num_entries; i++)
1215 bsrr->entries[i].term = 0;
1216 bsrr->entries[i].occurrences = 0;
1217 bsrr->entries[i].errcode = 0;
1218 bsrr->entries[i].errstring = 0;
1219 bsrr->entries[i].display_term = 0;
1222 save_entries = bsrr->entries; /* save it so we can compare later */
1224 if (srw_req->query_type == Z_SRW_query_type_pqf &&
1225 assoc->init->bend_scan)
1227 Odr_oid *scan_attributeSet = 0;
1229 YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
1231 bsrr->term = yaz_pqf_scan(pqf_parser, assoc->decode,
1233 srw_req->scanClause.pqf);
1234 if (scan_attributeSet &&
1235 (attset = oid_getentbyoid(scan_attributeSet)) &&
1236 (attset->oclass == CLASS_ATTSET ||
1237 attset->oclass == CLASS_GENERAL))
1238 bsrr->attributeset = attset->value;
1240 bsrr->attributeset = VAL_NONE;
1241 yaz_pqf_destroy(pqf_parser);
1242 bsrr->scanClause = 0;
1243 ((int (*)(void *, bend_scan_rr *))
1244 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1246 else if (srw_req->query_type == Z_SRW_query_type_cql
1247 && assoc->init->bend_scan && assoc->server
1248 && assoc->server->cql_transform)
1251 bsrr->scanClause = 0;
1252 bsrr->attributeset = VAL_NONE;
1253 bsrr->term = odr_malloc(assoc->decode, sizeof(*bsrr->term));
1254 srw_error = cql2pqf_scan(assoc->encode,
1255 srw_req->scanClause.cql,
1256 assoc->server->cql_transform,
1259 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1260 &srw_res->num_diagnostics,
1264 ((int (*)(void *, bend_scan_rr *))
1265 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1268 else if (srw_req->query_type == Z_SRW_query_type_cql
1269 && assoc->init->bend_srw_scan)
1272 bsrr->attributeset = VAL_NONE;
1273 bsrr->scanClause = srw_req->scanClause.cql;
1274 ((int (*)(void *, bend_scan_rr *))
1275 (*assoc->init->bend_srw_scan))(assoc->backend, bsrr);
1279 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1280 &srw_res->num_diagnostics,
1281 YAZ_SRW_UNSUPP_OPERATION, "scan");
1286 if (bsrr->errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
1291 srw_error = yaz_diag_bib1_to_srw (bsrr->errcode);
1293 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1294 &srw_res->num_diagnostics,
1295 srw_error, bsrr->errstring);
1297 else if (srw_res->num_diagnostics == 0 && bsrr->num_entries)
1300 srw_res->terms = (Z_SRW_scanTerm*)
1301 odr_malloc(assoc->encode, sizeof(*srw_res->terms) *
1304 srw_res->num_terms = bsrr->num_entries;
1305 for (i = 0; i<bsrr->num_entries; i++)
1307 Z_SRW_scanTerm *t = srw_res->terms + i;
1308 t->value = odr_strdup(assoc->encode, bsrr->entries[i].term);
1309 t->numberOfRecords =
1310 odr_intdup(assoc->encode, bsrr->entries[i].occurrences);
1312 if (save_entries == bsrr->entries &&
1313 bsrr->entries[i].display_term)
1315 /* the entries was _not_ set by the handler. So it's
1316 safe to test for new member display_term. It is
1319 t->displayTerm = odr_strdup(assoc->encode,
1320 bsrr->entries[i].display_term);
1328 WRBUF wr = wrbuf_alloc();
1329 const char *querytype = 0;
1330 const char *querystr = 0;
1332 switch(srw_req->query_type)
1334 case Z_SRW_query_type_pqf:
1336 querystr = srw_req->scanClause.pqf;
1338 case Z_SRW_query_type_cql:
1340 querystr = srw_req->scanClause.cql;
1343 querytype = "Unknown";
1346 wrbuf_printf(wr, "SRWScan %d+%d",
1347 (srw_req->responsePosition ?
1348 *srw_req->responsePosition : 1),
1349 (srw_req->maximumTerms ?
1350 *srw_req->maximumTerms : 1));
1351 if (srw_res->num_diagnostics)
1352 wrbuf_printf(wr, " ERROR %s", srw_res->diagnostics[0].uri);
1354 wrbuf_printf(wr, " OK -");
1355 wrbuf_printf(wr, " %s: %s", querytype, querystr);
1356 yaz_log(log_request, "%s", wrbuf_buf(wr) );
1362 static void srw_bend_update(association *assoc, request *req,
1364 Z_SRW_updateResponse *srw_res,
1367 Z_SRW_updateRequest *srw_req = sr->u.update_request;
1368 yaz_log(YLOG_DEBUG, "Got SRW UpdateRequest");
1369 yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics );
1371 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1376 rr.stream = assoc->encode;
1377 rr.print = assoc->print;
1379 rr.basenames = &srw_req->database;
1380 rr.operation = srw_req->operation;
1381 rr.operation_status = "failed";
1383 rr.record_version = 0;
1384 rr.record_checksum = 0;
1385 rr.record_old_version = 0;
1386 rr.record_packing = "xml";
1387 rr.record_schema = 0;
1389 rr.request_extra_record = 0;
1390 rr.response_extra_record = 0;
1391 rr.extra_request_data = 0;
1392 rr.extra_response_data = 0;
1396 yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] );
1397 yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation );
1398 if ( !strcmp( rr.operation, "delete" ) ){
1399 if ( !srw_req->recordId ){
1400 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1401 &srw_res->num_diagnostics,
1405 rr.record_id = srw_req->recordId;
1407 if ( !srw_req->recordVersion ){
1408 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1409 &srw_res->num_diagnostics,
1410 7, "recordVersion" );
1413 rr.record_version = odr_strdup( assoc->encode,
1414 srw_req->recordVersion );
1417 if ( srw_req->recordOldVersion ){
1418 rr.record_old_version = odr_strdup(assoc->encode,
1419 srw_req->recordOldVersion );
1421 if ( srw_req->extraRequestData ){
1422 rr.extra_request_data = odr_strdup(assoc->encode,
1423 srw_req->extraRequestData );
1426 else if ( !strcmp( rr.operation, "replace" ) ){
1427 if ( !srw_req->recordId ){
1428 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1429 &srw_res->num_diagnostics,
1433 rr.record_id = srw_req->recordId;
1435 if ( srw_req->record.recordSchema == 0 ){
1436 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1437 &srw_res->num_diagnostics,
1438 7, "recordSchema" );
1441 rr.record_schema = odr_strdup(assoc->encode,
1442 srw_req->record.recordSchema );
1444 switch (srw_req->record.recordPacking)
1446 case Z_SRW_recordPacking_string:
1447 rr.record_packing = "string";
1449 case Z_SRW_recordPacking_XML:
1450 rr.record_packing = "xml";
1452 case Z_SRW_recordPacking_URL:
1453 rr.record_packing = "url";
1456 if ( srw_req->record.recordData_len ){
1457 rr.record_data = odr_strdupn(assoc->encode,
1458 srw_req->record.recordData_buf,
1459 srw_req->record.recordData_len );
1460 rr.request_extra_record = srw_req->extra_record;
1463 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1464 &srw_res->num_diagnostics,
1467 if (srw_req->extraRequestData)
1468 rr.extra_request_data = odr_strdup(assoc->encode,
1469 srw_req->extraRequestData );
1471 else if ( !strcmp( rr.operation, "insert" ) )
1473 if ( srw_req->record.recordSchema == 0 ){
1474 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1475 &srw_res->num_diagnostics,
1476 7, "recordSchema" );
1479 rr.record_schema = odr_strdup(assoc->encode,
1480 srw_req->record.recordSchema);
1482 switch (srw_req->record.recordPacking)
1484 case Z_SRW_recordPacking_string:
1485 rr.record_packing = "string";
1487 case Z_SRW_recordPacking_XML:
1488 rr.record_packing = "xml";
1490 case Z_SRW_recordPacking_URL:
1491 rr.record_packing = "url";
1495 if (srw_req->record.recordData_len)
1497 rr.record_data = odr_strdupn(assoc->encode,
1498 srw_req->record.recordData_buf,
1499 srw_req->record.recordData_len );
1500 rr.request_extra_record = srw_req->extra_record;
1503 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1504 &srw_res->num_diagnostics,
1506 if ( srw_req->extraRequestData )
1507 rr.extra_request_data = odr_strdup(assoc->encode,
1508 srw_req->extraRequestData );
1510 if (srw_res->num_diagnostics == 0)
1512 if ( assoc->init->bend_srw_update)
1513 (*assoc->init->bend_srw_update)(assoc->backend, &rr);
1515 yaz_log( YLOG_WARN, "Got No Update function!");
1520 yaz_add_srw_diagnostic(assoc->encode,
1521 &srw_res->diagnostics,
1522 &srw_res->num_diagnostics,
1523 rr.errcode, rr.errstring);
1524 srw_res->recordId = rr.record_id;
1525 srw_res->operationStatus = rr.operation_status;
1526 srw_res->recordVersion = rr.record_version;
1527 srw_res->recordChecksum = rr.record_checksum;
1528 srw_res->extraResponseData = rr.extra_response_data;
1529 srw_res->record.recordPosition = 0;
1530 if (srw_res->num_diagnostics == 0 && rr.record_data)
1532 srw_res->record.recordSchema = rr.record_schema;
1533 srw_res->record.recordPacking = srw_req->record.recordPacking;
1534 srw_res->record.recordData_buf = rr.record_data;
1535 srw_res->record.recordData_len = strlen(rr.record_data);
1536 srw_res->extra_record = rr.response_extra_record;
1540 srw_res->record.recordData_len = 0;
1545 /* check if path is OK (1); BAD (0) */
1546 static int check_path(const char *path)
1550 if (strstr(path, ".."))
1555 static char *read_file(const char *fname, ODR o, int *sz)
1558 FILE *inf = fopen(fname, "rb");
1562 fseek(inf, 0L, SEEK_END);
1565 buf = odr_malloc(o, *sz);
1566 fread(buf, 1, *sz, inf);
1571 static void process_http_request(association *assoc, request *req)
1573 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
1574 ODR o = assoc->encode;
1575 int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */
1577 Z_SOAP *soap_package = 0;
1580 Z_HTTP_Response *hres = 0;
1582 const char *stylesheet = 0; /* for now .. set later */
1583 Z_SRW_diagnostic *diagnostic = 0;
1584 int num_diagnostic = 0;
1585 const char *host = z_HTTP_header_lookup(hreq->headers, "Host");
1587 if (!control_association(assoc, host, 0))
1589 p = z_get_HTTP_Response(o, 404);
1592 if (r == 2 && assoc->server && assoc->server->docpath
1593 && hreq->path[0] == '/'
1595 /* check if path is a proper prefix of documentroot */
1596 strncmp(hreq->path+1, assoc->server->docpath,
1597 strlen(assoc->server->docpath))
1600 if (!check_path(hreq->path))
1602 yaz_log(YLOG_LOG, "File %s access forbidden", hreq->path+1);
1603 p = z_get_HTTP_Response(o, 404);
1607 int content_size = 0;
1608 char *content_buf = read_file(hreq->path+1, o, &content_size);
1611 yaz_log(YLOG_LOG, "File %s not found", hreq->path+1);
1612 p = z_get_HTTP_Response(o, 404);
1616 const char *ctype = 0;
1617 yaz_mime_types types = yaz_mime_types_create();
1619 yaz_mime_types_add(types, "xsl", "application/xml");
1620 yaz_mime_types_add(types, "xml", "application/xml");
1621 yaz_mime_types_add(types, "css", "text/css");
1622 yaz_mime_types_add(types, "html", "text/html");
1623 yaz_mime_types_add(types, "htm", "text/html");
1624 yaz_mime_types_add(types, "txt", "text/plain");
1625 yaz_mime_types_add(types, "js", "application/x-javascript");
1627 yaz_mime_types_add(types, "gif", "image/gif");
1628 yaz_mime_types_add(types, "png", "image/png");
1629 yaz_mime_types_add(types, "jpg", "image/jpeg");
1630 yaz_mime_types_add(types, "jpeg", "image/jpeg");
1632 ctype = yaz_mime_lookup_fname(types, hreq->path);
1635 yaz_log(YLOG_LOG, "No mime type for %s", hreq->path+1);
1636 p = z_get_HTTP_Response(o, 404);
1640 p = z_get_HTTP_Response(o, 200);
1641 hres = p->u.HTTP_Response;
1642 hres->content_buf = content_buf;
1643 hres->content_len = content_size;
1644 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1646 yaz_mime_types_destroy(types);
1654 r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset);
1655 yaz_log(YLOG_DEBUG, "yaz_srw_decode returned %d", r);
1657 if (r == 2) /* not taken */
1659 r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset,
1660 &diagnostic, &num_diagnostic);
1661 yaz_log(YLOG_DEBUG, "yaz_sru_decode returned %d", r);
1663 if (r == 0) /* decode SRW/SRU OK .. */
1665 int http_code = 200;
1666 if (sr->which == Z_SRW_searchRetrieve_request)
1669 yaz_srw_get(assoc->encode, Z_SRW_searchRetrieve_response);
1671 stylesheet = sr->u.request->stylesheet;
1674 res->u.response->diagnostics = diagnostic;
1675 res->u.response->num_diagnostics = num_diagnostic;
1679 srw_bend_search(assoc, req, sr, res->u.response,
1682 if (http_code == 200)
1683 soap_package->u.generic->p = res;
1685 else if (sr->which == Z_SRW_explain_request)
1687 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_explain_response);
1688 stylesheet = sr->u.explain_request->stylesheet;
1691 res->u.explain_response->diagnostics = diagnostic;
1692 res->u.explain_response->num_diagnostics = num_diagnostic;
1694 srw_bend_explain(assoc, req, sr,
1695 res->u.explain_response, &http_code);
1696 if (http_code == 200)
1697 soap_package->u.generic->p = res;
1699 else if (sr->which == Z_SRW_scan_request)
1701 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_scan_response);
1702 stylesheet = sr->u.scan_request->stylesheet;
1705 res->u.scan_response->diagnostics = diagnostic;
1706 res->u.scan_response->num_diagnostics = num_diagnostic;
1708 srw_bend_scan(assoc, req, sr,
1709 res->u.scan_response, &http_code);
1710 if (http_code == 200)
1711 soap_package->u.generic->p = res;
1713 else if (sr->which == Z_SRW_update_request)
1715 Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_update_response);
1716 yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest");
1719 res->u.update_response->diagnostics = diagnostic;
1720 res->u.update_response->num_diagnostics = num_diagnostic;
1722 yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics );
1723 srw_bend_update(assoc, req, sr,
1724 res->u.update_response, &http_code);
1725 if (http_code == 200)
1726 soap_package->u.generic->p = res;
1730 yaz_log(log_request, "SOAP ERROR");
1731 /* FIXME - what error, what query */
1733 z_soap_error(assoc->encode, soap_package,
1734 "SOAP-ENV:Client", "Bad method", 0);
1736 if (http_code == 200 || http_code == 500)
1738 static Z_SOAP_Handler soap_handlers[4] = {
1740 {"http://www.loc.gov/zing/srw/", 0,
1741 (Z_SOAP_fun) yaz_srw_codec},
1742 {"http://www.loc.gov/zing/srw/v1.0/", 0,
1743 (Z_SOAP_fun) yaz_srw_codec},
1744 {"http://www.loc.gov/zing/srw/update/", 0,
1745 (Z_SOAP_fun) yaz_ucp_codec},
1751 p = z_get_HTTP_Response(o, 200);
1752 hres = p->u.HTTP_Response;
1754 if (!stylesheet && assoc->server)
1755 stylesheet = assoc->server->stylesheet;
1757 /* empty stylesheet means NO stylesheet */
1758 if (stylesheet && *stylesheet == '\0')
1761 ret = z_soap_codec_enc_xsl(assoc->encode, &soap_package,
1762 &hres->content_buf, &hres->content_len,
1763 soap_handlers, charset, stylesheet);
1764 hres->code = http_code;
1766 strcpy(ctype, "text/xml");
1769 strcat(ctype, "; charset=");
1770 strcat(ctype, charset);
1772 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1775 p = z_get_HTTP_Response(o, http_code);
1779 p = z_get_HTTP_Response(o, 500);
1780 hres = p->u.HTTP_Response;
1781 if (!strcmp(hreq->version, "1.0"))
1783 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1784 if (v && !strcmp(v, "Keep-Alive"))
1788 hres->version = "1.0";
1792 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1793 if (v && !strcmp(v, "close"))
1797 hres->version = "1.1";
1801 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1802 assoc->state = ASSOC_DEAD;
1803 assoc->cs_get_mask = 0;
1808 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1810 if (alive && isdigit(*(const unsigned char *) alive))
1814 if (t < 0 || t > 3600)
1816 iochan_settimeout(assoc->client_chan,t);
1817 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1819 process_gdu_response(assoc, req, p);
1822 static void process_gdu_request(association *assoc, request *req)
1824 if (req->gdu_request->which == Z_GDU_Z3950)
1827 req->apdu_request = req->gdu_request->u.z3950;
1828 if (process_z_request(assoc, req, &msg) < 0)
1829 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1831 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1832 process_http_request(assoc, req);
1835 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1840 * Initiate request processing.
1842 static int process_z_request(association *assoc, request *req, char **msg)
1848 *msg = "Unknown Error";
1849 assert(req && req->state == REQUEST_IDLE);
1850 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1852 *msg = "Missing InitRequest";
1855 switch (req->apdu_request->which)
1857 case Z_APDU_initRequest:
1858 res = process_initRequest(assoc, req); break;
1859 case Z_APDU_searchRequest:
1860 res = process_searchRequest(assoc, req, &fd); break;
1861 case Z_APDU_presentRequest:
1862 res = process_presentRequest(assoc, req, &fd); break;
1863 case Z_APDU_scanRequest:
1864 if (assoc->init->bend_scan)
1865 res = process_scanRequest(assoc, req, &fd);
1868 *msg = "Cannot handle Scan APDU";
1872 case Z_APDU_extendedServicesRequest:
1873 if (assoc->init->bend_esrequest)
1874 res = process_ESRequest(assoc, req, &fd);
1877 *msg = "Cannot handle Extended Services APDU";
1881 case Z_APDU_sortRequest:
1882 if (assoc->init->bend_sort)
1883 res = process_sortRequest(assoc, req, &fd);
1886 *msg = "Cannot handle Sort APDU";
1891 process_close(assoc, req);
1893 case Z_APDU_deleteResultSetRequest:
1894 if (assoc->init->bend_delete)
1895 res = process_deleteRequest(assoc, req, &fd);
1898 *msg = "Cannot handle Delete APDU";
1902 case Z_APDU_segmentRequest:
1903 if (assoc->init->bend_segment)
1905 res = process_segmentRequest (assoc, req);
1909 *msg = "Cannot handle Segment APDU";
1913 case Z_APDU_triggerResourceControlRequest:
1916 *msg = "Bad APDU received";
1921 yaz_log(YLOG_DEBUG, " result immediately available");
1922 retval = process_z_response(assoc, req, res);
1926 yaz_log(YLOG_DEBUG, " result unavailble");
1929 else /* no result yet - one will be provided later */
1933 /* Set up an I/O handler for the fd supplied by the backend */
1935 yaz_log(YLOG_DEBUG, " establishing handler for result");
1936 req->state = REQUEST_PENDING;
1937 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT, 0)))
1939 iochan_setdata(chan, assoc);
1946 * Handle message from the backend.
1948 void backend_response(IOCHAN i, int event)
1950 association *assoc = (association *)iochan_getdata(i);
1951 request *req = request_head(&assoc->incoming);
1955 yaz_log(YLOG_DEBUG, "backend_response");
1956 assert(assoc && req && req->state != REQUEST_IDLE);
1957 /* determine what it is we're waiting for */
1958 switch (req->apdu_request->which)
1960 case Z_APDU_searchRequest:
1961 res = response_searchRequest(assoc, req, 0, &fd); break;
1963 case Z_APDU_presentRequest:
1964 res = response_presentRequest(assoc, req, 0, &fd); break;
1965 case Z_APDU_scanRequest:
1966 res = response_scanRequest(assoc, req, 0, &fd); break;
1969 yaz_log(YLOG_FATAL, "Serious programmer's lapse or bug");
1972 if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
1974 yaz_log(YLOG_WARN, "Fatal error when talking to backend");
1975 do_close(assoc, Z_Close_systemProblem, 0);
1979 else if (!res) /* no result yet - try again later */
1981 yaz_log(YLOG_DEBUG, " no result yet");
1982 iochan_setfd(i, fd); /* in case fd has changed */
1987 * Encode response, and transfer the request structure to the outgoing queue.
1989 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
1991 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
1995 if (!z_GDU(assoc->print, &res, 0, 0))
1996 yaz_log(YLOG_WARN, "ODR print error: %s",
1997 odr_errmsg(odr_geterror(assoc->print)));
1998 odr_reset(assoc->print);
2000 if (!z_GDU(assoc->encode, &res, 0, 0))
2002 yaz_log(YLOG_WARN, "ODR error when encoding PDU: %s [element %s]",
2003 odr_errmsg(odr_geterror(assoc->decode)),
2004 odr_getelement(assoc->decode));
2007 req->response = odr_getbuf(assoc->encode, &req->len_response,
2008 &req->size_response);
2009 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
2010 odr_reset(assoc->encode);
2011 req->state = REQUEST_IDLE;
2012 request_enq(&assoc->outgoing, req);
2013 /* turn the work over to the ir_session handler */
2014 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
2015 assoc->cs_put_mask = EVENT_OUTPUT;
2016 /* Is there more work to be done? give that to the input handler too */
2018 if (request_head(&assoc->incoming))
2020 yaz_log (YLOG_DEBUG, "more work to be done");
2021 iochan_setevent(assoc->client_chan, EVENT_WORK);
2028 * Encode response, and transfer the request structure to the outgoing queue.
2030 static int process_z_response(association *assoc, request *req, Z_APDU *res)
2032 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*res));
2033 gres->which = Z_GDU_Z3950;
2034 gres->u.z3950 = res;
2036 return process_gdu_response(assoc, req, gres);
2039 static char *get_vhost(Z_OtherInformation *otherInfo)
2041 return yaz_oi_get_string_oidval(&otherInfo, VAL_PROXY, 1, 0);
2045 * Handle init request.
2046 * At the moment, we don't check the options
2047 * anywhere else in the code - we just try not to do anything that would
2048 * break a naive client. We'll toss 'em into the association block when
2049 * we need them there.
2051 static Z_APDU *process_initRequest(association *assoc, request *reqb)
2053 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
2054 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
2055 Z_InitResponse *resp = apdu->u.initResponse;
2056 bend_initresult *binitres;
2059 statserv_options_block *cb = 0; /* by default no control for backend */
2061 if (control_association(assoc, get_vhost(req->otherInfo), 1))
2062 cb = statserv_getcontrol(); /* got control block for backend */
2064 if (cb && assoc->backend)
2065 (*cb->bend_close)(assoc->backend);
2067 yaz_log(log_requestdetail, "Got initRequest");
2068 if (req->implementationId)
2069 yaz_log(log_requestdetail, "Id: %s",
2070 req->implementationId);
2071 if (req->implementationName)
2072 yaz_log(log_requestdetail, "Name: %s",
2073 req->implementationName);
2074 if (req->implementationVersion)
2075 yaz_log(log_requestdetail, "Version: %s",
2076 req->implementationVersion);
2078 assoc_init_reset(assoc);
2080 assoc->init->auth = req->idAuthentication;
2081 assoc->init->referenceId = req->referenceId;
2083 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2085 Z_CharSetandLanguageNegotiation *negotiation =
2086 yaz_get_charneg_record (req->otherInfo);
2088 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2089 assoc->init->charneg_request = negotiation;
2095 if (req->implementationVersion)
2096 yaz_log(log_requestdetail, "Config: %s",
2099 iochan_settimeout(assoc->client_chan, cb->idle_timeout * 60);
2101 /* we have a backend control block, so call that init function */
2102 if (!(binitres = (*cb->bend_init)(assoc->init)))
2104 yaz_log(YLOG_WARN, "Bad response from backend.");
2107 assoc->backend = binitres->handle;
2111 /* no backend. return error */
2112 binitres = odr_malloc(assoc->encode, sizeof(*binitres));
2113 binitres->errstring = 0;
2114 binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
2115 iochan_settimeout(assoc->client_chan, 10);
2117 if ((assoc->init->bend_sort))
2118 yaz_log (YLOG_DEBUG, "Sort handler installed");
2119 if ((assoc->init->bend_search))
2120 yaz_log (YLOG_DEBUG, "Search handler installed");
2121 if ((assoc->init->bend_present))
2122 yaz_log (YLOG_DEBUG, "Present handler installed");
2123 if ((assoc->init->bend_esrequest))
2124 yaz_log (YLOG_DEBUG, "ESRequest handler installed");
2125 if ((assoc->init->bend_delete))
2126 yaz_log (YLOG_DEBUG, "Delete handler installed");
2127 if ((assoc->init->bend_scan))
2128 yaz_log (YLOG_DEBUG, "Scan handler installed");
2129 if ((assoc->init->bend_segment))
2130 yaz_log (YLOG_DEBUG, "Segment handler installed");
2132 resp->referenceId = req->referenceId;
2134 /* let's tell the client what we can do */
2135 if (ODR_MASK_GET(req->options, Z_Options_search))
2137 ODR_MASK_SET(resp->options, Z_Options_search);
2138 strcat(options, "srch");
2140 if (ODR_MASK_GET(req->options, Z_Options_present))
2142 ODR_MASK_SET(resp->options, Z_Options_present);
2143 strcat(options, " prst");
2145 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
2146 assoc->init->bend_delete)
2148 ODR_MASK_SET(resp->options, Z_Options_delSet);
2149 strcat(options, " del");
2151 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
2152 assoc->init->bend_esrequest)
2154 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
2155 strcat (options, " extendedServices");
2157 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
2159 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
2160 strcat(options, " namedresults");
2162 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
2164 ODR_MASK_SET(resp->options, Z_Options_scan);
2165 strcat(options, " scan");
2167 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
2169 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
2170 strcat(options, " concurrop");
2172 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
2174 ODR_MASK_SET(resp->options, Z_Options_sort);
2175 strcat(options, " sort");
2178 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)
2179 && assoc->init->charneg_response)
2181 Z_OtherInformation **p;
2182 Z_OtherInformationUnit *p0;
2184 yaz_oi_APDU(apdu, &p);
2186 if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
2187 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2189 p0->which = Z_OtherInfo_externallyDefinedInfo;
2190 p0->information.externallyDefinedInfo =
2191 assoc->init->charneg_response;
2193 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2194 strcat(options, " negotiation");
2197 ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
2199 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
2201 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
2202 assoc->version = 1; /* 1 & 2 are equivalent */
2204 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
2206 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
2209 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
2211 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
2215 yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
2216 assoc->maximumRecordSize = *req->maximumRecordSize;
2218 if (cb && assoc->maximumRecordSize > cb->maxrecordsize)
2219 assoc->maximumRecordSize = cb->maxrecordsize;
2220 assoc->preferredMessageSize = *req->preferredMessageSize;
2221 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
2222 assoc->preferredMessageSize = assoc->maximumRecordSize;
2224 resp->preferredMessageSize = &assoc->preferredMessageSize;
2225 resp->maximumRecordSize = &assoc->maximumRecordSize;
2227 resp->implementationId = odr_prepend(assoc->encode,
2228 assoc->init->implementation_id,
2229 resp->implementationId);
2231 resp->implementationName = odr_prepend(assoc->encode,
2232 assoc->init->implementation_name,
2233 odr_prepend(assoc->encode, "GFS", resp->implementationName));
2235 version = odr_strdup(assoc->encode, "$Revision: 1.82 $");
2236 if (strlen(version) > 10) /* check for unexpanded CVS strings */
2237 version[strlen(version)-2] = '\0';
2238 resp->implementationVersion = odr_prepend(assoc->encode,
2239 assoc->init->implementation_version,
2240 odr_prepend(assoc->encode, &version[11],
2241 resp->implementationVersion));
2243 if (binitres->errcode)
2245 assoc->state = ASSOC_DEAD;
2246 resp->userInformationField =
2247 init_diagnostics(assoc->encode, binitres->errcode,
2248 binitres->errstring);
2253 if (!req->idAuthentication)
2254 yaz_log(log_request, "Auth none");
2255 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2257 const char *open = req->idAuthentication->u.open;
2258 const char *slash = strchr(open, '/');
2264 yaz_log(log_request, "Auth open %.*s", len, open);
2266 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2268 const char *user = req->idAuthentication->u.idPass->userId;
2269 const char *group = req->idAuthentication->u.idPass->groupId;
2270 yaz_log(log_request, "Auth idPass %s %s",
2271 user ? user : "-", group ? group : "-");
2273 else if (req->idAuthentication->which
2274 == Z_IdAuthentication_anonymous)
2276 yaz_log(log_request, "Auth anonymous");
2280 yaz_log(log_request, "Auth other");
2285 WRBUF wr = wrbuf_alloc();
2286 wrbuf_printf(wr, "Init ");
2287 if (binitres->errcode)
2288 wrbuf_printf(wr, "ERROR %d", binitres->errcode);
2290 wrbuf_printf(wr, "OK -");
2291 wrbuf_printf(wr, " ID:%s Name:%s Version:%s",
2292 (req->implementationId ? req->implementationId :"-"),
2293 (req->implementationName ?
2294 req->implementationName : "-"),
2295 (req->implementationVersion ?
2296 req->implementationVersion : "-")
2298 yaz_log(log_request, "%s", wrbuf_buf(wr));
2305 * Set the specified `errcode' and `errstring' into a UserInfo-1
2306 * external to be returned to the client in accordance with Z35.90
2307 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
2308 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
2310 static Z_External *init_diagnostics(ODR odr, int error, const char *addinfo)
2312 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2313 addinfo ? " -- " : "", addinfo ? addinfo : "");
2314 return zget_init_diagnostics(odr, error, addinfo);
2318 * nonsurrogate diagnostic record.
2320 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
2322 Z_Records *rec = (Z_Records *) odr_malloc (assoc->encode, sizeof(*rec));
2324 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2325 addinfo ? " -- " : "", addinfo ? addinfo : "");
2327 rec->which = Z_Records_NSD;
2328 rec->u.nonSurrogateDiagnostic = zget_DefaultDiagFormat(assoc->encode,
2334 * surrogate diagnostic.
2336 static Z_NamePlusRecord *surrogatediagrec(association *assoc,
2338 int error, const char *addinfo)
2340 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2341 addinfo ? " -- " : "", addinfo ? addinfo : "");
2342 return zget_surrogateDiagRec(assoc->encode, dbname, error, addinfo);
2345 static Z_Records *pack_records(association *a, char *setname, int start,
2346 int *num, Z_RecordComposition *comp,
2347 int *next, int *pres, oid_value format,
2348 Z_ReferenceId *referenceId,
2349 int *oid, int *errcode)
2351 int recno, total_length = 0, toget = *num, dumped_records = 0;
2352 Z_Records *records =
2353 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
2354 Z_NamePlusRecordList *reclist =
2355 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
2356 Z_NamePlusRecord **list =
2357 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
2359 records->which = Z_Records_DBOSD;
2360 records->u.databaseOrSurDiagnostics = reclist;
2361 reclist->num_records = 0;
2362 reclist->records = list;
2363 *pres = Z_PresentStatus_success;
2367 yaz_log(log_requestdetail, "Request to pack %d+%d %s", start, toget, setname);
2368 yaz_log(log_requestdetail, "pms=%d, mrs=%d", a->preferredMessageSize,
2369 a->maximumRecordSize);
2370 for (recno = start; reclist->num_records < toget; recno++)
2373 Z_NamePlusRecord *thisrec;
2374 int this_length = 0;
2376 * we get the number of bytes allocated on the stream before any
2377 * allocation done by the backend - this should give us a reasonable
2378 * idea of the total size of the data so far.
2380 total_length = odr_total(a->encode) - dumped_records;
2386 freq.last_in_set = 0;
2387 freq.setname = setname;
2388 freq.surrogate_flag = 0;
2389 freq.number = recno;
2391 freq.request_format = format;
2392 freq.request_format_raw = oid;
2393 freq.output_format = format;
2394 freq.output_format_raw = 0;
2395 freq.stream = a->encode;
2396 freq.print = a->print;
2397 freq.referenceId = referenceId;
2400 retrieve_fetch(a, &freq);
2402 *next = freq.last_in_set ? 0 : recno + 1;
2404 /* backend should be able to signal whether error is system-wide
2405 or only pertaining to current record */
2408 if (!freq.surrogate_flag)
2411 *pres = Z_PresentStatus_failure;
2412 /* for 'present request out of range',
2413 set addinfo to record position if not set */
2414 if (freq.errcode == YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE &&
2415 freq.errstring == 0)
2417 sprintf (s, "%d", recno);
2421 *errcode = freq.errcode;
2422 return diagrec(a, freq.errcode, freq.errstring);
2424 reclist->records[reclist->num_records] =
2425 surrogatediagrec(a, freq.basename, freq.errcode,
2427 reclist->num_records++;
2430 if (freq.record == 0) /* no error and no record ? */
2432 *next = 0; /* signal end-of-set and stop */
2436 this_length = freq.len;
2438 this_length = odr_total(a->encode) - total_length - dumped_records;
2439 yaz_log(YLOG_DEBUG, " fetched record, len=%d, total=%d dumped=%d",
2440 this_length, total_length, dumped_records);
2441 if (a->preferredMessageSize > 0 &&
2442 this_length + total_length > a->preferredMessageSize)
2444 /* record is small enough, really */
2445 if (this_length <= a->preferredMessageSize && recno > start)
2447 yaz_log(log_requestdetail, " Dropped last normal-sized record");
2448 *pres = Z_PresentStatus_partial_2;
2451 /* record can only be fetched by itself */
2452 if (this_length < a->maximumRecordSize)
2454 yaz_log(log_requestdetail, " Record > prefmsgsz");
2457 yaz_log(YLOG_DEBUG, " Dropped it");
2458 reclist->records[reclist->num_records] =
2459 surrogatediagrec(a, freq.basename, 16, 0);
2460 reclist->num_records++;
2461 dumped_records += this_length;
2465 else /* too big entirely */
2467 yaz_log(log_requestdetail, "Record > maxrcdsz this=%d max=%d",
2468 this_length, a->maximumRecordSize);
2469 reclist->records[reclist->num_records] =
2470 surrogatediagrec(a, freq.basename, 17, 0);
2471 reclist->num_records++;
2472 dumped_records += this_length;
2477 if (!(thisrec = (Z_NamePlusRecord *)
2478 odr_malloc(a->encode, sizeof(*thisrec))))
2481 thisrec->databaseName = odr_strdup(a->encode, freq.basename);
2483 thisrec->databaseName = 0;
2484 thisrec->which = Z_NamePlusRecord_databaseRecord;
2486 if (freq.output_format_raw)
2488 struct oident *ident = oid_getentbyoid(freq.output_format_raw);
2489 freq.output_format = ident->value;
2491 thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
2492 freq.record, freq.len);
2493 if (!thisrec->u.databaseRecord)
2495 reclist->records[reclist->num_records] = thisrec;
2496 reclist->num_records++;
2498 *num = reclist->num_records;
2502 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
2505 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2506 bend_search_rr *bsrr =
2507 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
2509 yaz_log(log_requestdetail, "Got SearchRequest.");
2511 bsrr->request = reqb;
2512 bsrr->association = assoc;
2513 bsrr->referenceId = req->referenceId;
2514 save_referenceId (reqb, bsrr->referenceId);
2515 bsrr->srw_sortKeys = 0;
2516 bsrr->srw_setname = 0;
2517 bsrr->srw_setnameIdleTime = 0;
2519 yaz_log (log_requestdetail, "ResultSet '%s'", req->resultSetName);
2520 if (req->databaseNames)
2523 for (i = 0; i < req->num_databaseNames; i++)
2524 yaz_log (log_requestdetail, "Database '%s'", req->databaseNames[i]);
2527 yaz_log_zquery_level(log_requestdetail,req->query);
2529 if (assoc->init->bend_search)
2531 bsrr->setname = req->resultSetName;
2532 bsrr->replace_set = *req->replaceIndicator;
2533 bsrr->num_bases = req->num_databaseNames;
2534 bsrr->basenames = req->databaseNames;
2535 bsrr->query = req->query;
2536 bsrr->stream = assoc->encode;
2537 nmem_transfer(bsrr->stream->mem, reqb->request_mem);
2538 bsrr->decode = assoc->decode;
2539 bsrr->print = assoc->print;
2542 bsrr->errstring = NULL;
2543 bsrr->search_info = NULL;
2545 if (assoc->server && assoc->server->cql_transform
2546 && req->query->which == Z_Query_type_104
2547 && req->query->u.type_104->which == Z_External_CQL)
2549 /* have a CQL query and a CQL to PQF transform .. */
2551 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
2552 assoc->server->cql_transform, bsrr->query);
2554 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2557 (assoc->init->bend_search)(assoc->backend, bsrr);
2558 if (!bsrr->request) /* backend not ready with the search response */
2559 return 0; /* should not be used any more */
2563 /* FIXME - make a diagnostic for it */
2564 yaz_log(YLOG_WARN,"Search not supported ?!?!");
2566 return response_searchRequest(assoc, reqb, bsrr, fd);
2569 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
2572 * Prepare a searchresponse based on the backend results. We probably want
2573 * to look at making the fetching of records nonblocking as well, but
2574 * so far, we'll keep things simple.
2575 * If bsrt is null, that means we're called in response to a communications
2576 * event, and we'll have to get the response for ourselves.
2578 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
2579 bend_search_rr *bsrt, int *fd)
2581 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2582 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2583 Z_SearchResponse *resp = (Z_SearchResponse *)
2584 odr_malloc (assoc->encode, sizeof(*resp));
2585 int *nulint = odr_intdup (assoc->encode, 0);
2586 bool_t *sr = odr_intdup(assoc->encode, 1);
2587 int *next = odr_intdup(assoc->encode, 0);
2588 int *none = odr_intdup(assoc->encode, Z_SearchResponse_none);
2591 apdu->which = Z_APDU_searchResponse;
2592 apdu->u.searchResponse = resp;
2593 resp->referenceId = req->referenceId;
2594 resp->additionalSearchInfo = 0;
2595 resp->otherInfo = 0;
2597 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
2599 yaz_log(YLOG_FATAL, "Bad result from backend");
2602 else if (bsrt->errcode)
2604 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
2605 resp->resultCount = nulint;
2606 resp->numberOfRecordsReturned = nulint;
2607 resp->nextResultSetPosition = nulint;
2608 resp->searchStatus = nulint;
2609 resp->resultSetStatus = none;
2610 resp->presentStatus = 0;
2614 int *toget = odr_intdup(assoc->encode, 0);
2615 int *presst = odr_intdup(assoc->encode, 0);
2616 Z_RecordComposition comp, *compp = 0;
2618 yaz_log (log_requestdetail, "resultCount: %d", bsrt->hits);
2621 resp->resultCount = &bsrt->hits;
2623 comp.which = Z_RecordComp_simple;
2624 /* how many records does the user agent want, then? */
2625 if (bsrt->hits <= *req->smallSetUpperBound)
2627 *toget = bsrt->hits;
2628 if ((comp.u.simple = req->smallSetElementSetNames))
2631 else if (bsrt->hits < *req->largeSetLowerBound)
2633 *toget = *req->mediumSetPresentNumber;
2634 if (*toget > bsrt->hits)
2635 *toget = bsrt->hits;
2636 if ((comp.u.simple = req->mediumSetElementSetNames))
2642 if (*toget && !resp->records)
2647 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
2650 form = prefformat->value;
2652 /* Call bend_present if defined */
2653 if (assoc->init->bend_present)
2655 bend_present_rr *bprr = (bend_present_rr *)
2656 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2657 bprr->setname = req->resultSetName;
2659 bprr->number = *toget;
2660 bprr->format = form;
2662 bprr->referenceId = req->referenceId;
2663 bprr->stream = assoc->encode;
2664 bprr->print = assoc->print;
2665 bprr->request = reqb;
2666 bprr->association = assoc;
2668 bprr->errstring = NULL;
2669 (*assoc->init->bend_present)(assoc->backend, bprr);
2675 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2676 *resp->presentStatus = Z_PresentStatus_failure;
2681 resp->records = pack_records(assoc, req->resultSetName, 1,
2682 toget, compp, next, presst, form, req->referenceId,
2683 req->preferredRecordSyntax, NULL);
2686 resp->numberOfRecordsReturned = toget;
2687 returnedrecs = *toget;
2688 resp->nextResultSetPosition = next;
2689 resp->searchStatus = sr;
2690 resp->resultSetStatus = 0;
2691 resp->presentStatus = presst;
2695 if (*resp->resultCount)
2697 resp->numberOfRecordsReturned = nulint;
2698 resp->nextResultSetPosition = next;
2699 resp->searchStatus = sr;
2700 resp->resultSetStatus = 0;
2701 resp->presentStatus = 0;
2704 resp->additionalSearchInfo = bsrt->search_info;
2708 WRBUF wr = wrbuf_alloc();
2710 wrbuf_printf(wr, "ERROR %d", bsrt->errcode);
2712 wrbuf_printf(wr, "OK %d", bsrt->hits);
2713 wrbuf_printf(wr, " %s 1+%d ",
2714 req->resultSetName, returnedrecs);
2715 yaz_query_to_wrbuf(wr, req->query);
2717 yaz_log(log_request, "Search %s", wrbuf_buf(wr));
2724 * Maybe we got a little over-friendly when we designed bend_fetch to
2725 * get only one record at a time. Some backends can optimise multiple-record
2726 * fetches, and at any rate, there is some overhead involved in
2727 * all that selecting and hopping around. Problem is, of course, that the
2728 * frontend can't know ahead of time how many records it'll need to
2729 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
2730 * is downright lousy as a bulk data transfer protocol.
2732 * To start with, we'll do the fetching of records from the backend
2733 * in one operation: To save some trips in and out of the event-handler,
2734 * and to simplify the interface to pack_records. At any rate, asynch
2735 * operation is more fun in operations that have an unpredictable execution
2736 * speed - which is normally more true for search than for present.
2738 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
2741 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
2745 Z_PresentResponse *resp;
2749 const char *errstring = 0;
2751 yaz_log(log_requestdetail, "Got PresentRequest.");
2753 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
2756 form = prefformat->value;
2757 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
2759 resp->presentStatus = odr_intdup(assoc->encode, 0);
2760 if (assoc->init->bend_present)
2762 bend_present_rr *bprr = (bend_present_rr *)
2763 nmem_malloc (reqb->request_mem, sizeof(*bprr));
2764 bprr->setname = req->resultSetId;
2765 bprr->start = *req->resultSetStartPoint;
2766 bprr->number = *req->numberOfRecordsRequested;
2767 bprr->format = form;
2768 bprr->comp = req->recordComposition;
2769 bprr->referenceId = req->referenceId;
2770 bprr->stream = assoc->encode;
2771 bprr->print = assoc->print;
2772 bprr->request = reqb;
2773 bprr->association = assoc;
2775 bprr->errstring = NULL;
2776 (*assoc->init->bend_present)(assoc->backend, bprr);
2779 return 0; /* should not happen */
2782 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2783 *resp->presentStatus = Z_PresentStatus_failure;
2784 errcode = bprr->errcode;
2785 errstring = bprr->errstring;
2788 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2789 next = odr_intdup(assoc->encode, 0);
2790 num = odr_intdup(assoc->encode, 0);
2792 apdu->which = Z_APDU_presentResponse;
2793 apdu->u.presentResponse = resp;
2794 resp->referenceId = req->referenceId;
2795 resp->otherInfo = 0;
2799 *num = *req->numberOfRecordsRequested;
2801 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
2802 num, req->recordComposition, next,
2803 resp->presentStatus,
2804 form, req->referenceId, req->preferredRecordSyntax,
2809 WRBUF wr = wrbuf_alloc();
2810 wrbuf_printf(wr, "Present ");
2812 if (*resp->presentStatus == Z_PresentStatus_failure)
2813 wrbuf_printf(wr, "ERROR %d", errcode);
2814 else if (*resp->presentStatus == Z_PresentStatus_success)
2815 wrbuf_printf(wr, "OK -");
2817 wrbuf_printf(wr, "Partial %d", *resp->presentStatus);
2819 wrbuf_printf(wr, " %s %d+%d ",
2820 req->resultSetId, *req->resultSetStartPoint,
2821 *req->numberOfRecordsRequested);
2822 yaz_log(log_request, "%s", wrbuf_buf(wr) );
2827 resp->numberOfRecordsReturned = num;
2828 resp->nextResultSetPosition = next;
2834 * Scan was implemented rather in a hurry, and with support for only the basic
2835 * elements of the service in the backend API. Suggestions are welcome.
2837 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
2839 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
2840 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
2841 Z_ScanResponse *res = (Z_ScanResponse *)
2842 odr_malloc (assoc->encode, sizeof(*res));
2843 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2844 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2845 Z_ListEntries *ents = (Z_ListEntries *)
2846 odr_malloc (assoc->encode, sizeof(*ents));
2847 Z_DiagRecs *diagrecs_p = NULL;
2849 bend_scan_rr *bsrr = (bend_scan_rr *)
2850 odr_malloc (assoc->encode, sizeof(*bsrr));
2851 struct scan_entry *save_entries;
2853 yaz_log(log_requestdetail, "Got ScanRequest");
2855 apdu->which = Z_APDU_scanResponse;
2856 apdu->u.scanResponse = res;
2857 res->referenceId = req->referenceId;
2859 /* if step is absent, set it to 0 */
2860 res->stepSize = odr_intdup(assoc->encode, 0);
2862 *res->stepSize = *req->stepSize;
2864 res->scanStatus = scanStatus;
2865 res->numberOfEntriesReturned = numberOfEntriesReturned;
2866 res->positionOfTerm = 0;
2867 res->entries = ents;
2868 ents->num_entries = 0;
2869 ents->entries = NULL;
2870 ents->num_nonsurrogateDiagnostics = 0;
2871 ents->nonsurrogateDiagnostics = NULL;
2872 res->attributeSet = 0;
2875 if (req->databaseNames)
2878 for (i = 0; i < req->num_databaseNames; i++)
2879 yaz_log (log_requestdetail, "Database '%s'", req->databaseNames[i]);
2881 bsrr->scanClause = 0;
2883 bsrr->errstring = 0;
2884 bsrr->num_bases = req->num_databaseNames;
2885 bsrr->basenames = req->databaseNames;
2886 bsrr->num_entries = *req->numberOfTermsRequested;
2887 bsrr->term = req->termListAndStartPoint;
2888 bsrr->referenceId = req->referenceId;
2889 bsrr->stream = assoc->encode;
2890 bsrr->print = assoc->print;
2891 bsrr->step_size = res->stepSize;
2893 /* For YAZ 2.0 and earlier it was the backend handler that
2894 initialized entries (member display_term did not exist)
2895 YAZ 2.0 and later sets 'entries' and initialize all members
2896 including 'display_term'. If YAZ 2.0 or later sees that
2897 entries was modified - we assume that it is an old handler and
2898 that 'display_term' is _not_ set.
2900 if (bsrr->num_entries > 0)
2903 bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
2905 for (i = 0; i<bsrr->num_entries; i++)
2907 bsrr->entries[i].term = 0;
2908 bsrr->entries[i].occurrences = 0;
2909 bsrr->entries[i].errcode = 0;
2910 bsrr->entries[i].errstring = 0;
2911 bsrr->entries[i].display_term = 0;
2914 save_entries = bsrr->entries; /* save it so we can compare later */
2916 if (req->attributeSet &&
2917 (attset = oid_getentbyoid(req->attributeSet)) &&
2918 (attset->oclass == CLASS_ATTSET || attset->oclass == CLASS_GENERAL))
2919 bsrr->attributeset = attset->value;
2921 bsrr->attributeset = VAL_NONE;
2922 log_scan_term_level (log_requestdetail, req->termListAndStartPoint,
2923 bsrr->attributeset);
2924 bsrr->term_position = req->preferredPositionInResponse ?
2925 *req->preferredPositionInResponse : 1;
2927 ((int (*)(void *, bend_scan_rr *))
2928 (*assoc->init->bend_scan))(assoc->backend, bsrr);
2931 diagrecs_p = zget_DiagRecs(assoc->encode,
2932 bsrr->errcode, bsrr->errstring);
2936 Z_Entry **tab = (Z_Entry **)
2937 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
2939 if (bsrr->status == BEND_SCAN_PARTIAL)
2940 *scanStatus = Z_Scan_partial_5;
2942 *scanStatus = Z_Scan_success;
2943 ents->entries = tab;
2944 ents->num_entries = bsrr->num_entries;
2945 res->numberOfEntriesReturned = &ents->num_entries;
2946 res->positionOfTerm = &bsrr->term_position;
2947 for (i = 0; i < bsrr->num_entries; i++)
2953 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
2954 if (bsrr->entries[i].occurrences >= 0)
2956 e->which = Z_Entry_termInfo;
2957 e->u.termInfo = t = (Z_TermInfo *)
2958 odr_malloc(assoc->encode, sizeof(*t));
2959 t->suggestedAttributes = 0;
2961 if (save_entries == bsrr->entries &&
2962 bsrr->entries[i].display_term)
2964 /* the entries was _not_ set by the handler. So it's
2965 safe to test for new member display_term. It is
2968 t->displayTerm = odr_strdup(assoc->encode,
2969 bsrr->entries[i].display_term);
2971 t->alternativeTerm = 0;
2972 t->byAttributes = 0;
2973 t->otherTermInfo = 0;
2974 t->globalOccurrences = &bsrr->entries[i].occurrences;
2975 t->term = (Z_Term *)
2976 odr_malloc(assoc->encode, sizeof(*t->term));
2977 t->term->which = Z_Term_general;
2978 t->term->u.general = o =
2979 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
2980 o->buf = (unsigned char *)
2981 odr_malloc(assoc->encode, o->len = o->size =
2982 strlen(bsrr->entries[i].term));
2983 memcpy(o->buf, bsrr->entries[i].term, o->len);
2984 yaz_log(YLOG_DEBUG, " term #%d: '%s' (%d)", i,
2985 bsrr->entries[i].term, bsrr->entries[i].occurrences);
2989 Z_DiagRecs *drecs = zget_DiagRecs(assoc->encode,
2990 bsrr->entries[i].errcode,
2991 bsrr->entries[i].errstring);
2992 assert (drecs->num_diagRecs == 1);
2993 e->which = Z_Entry_surrogateDiagnostic;
2994 assert (drecs->diagRecs[0]);
2995 e->u.surrogateDiagnostic = drecs->diagRecs[0];
3001 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
3002 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
3006 WRBUF wr = wrbuf_alloc();
3008 wr_diag(wr, bsrr->errcode, bsrr->errstring);
3009 else if (*res->scanStatus == Z_Scan_success)
3010 wrbuf_printf(wr, "OK");
3012 wrbuf_printf(wr, "Partial");
3014 wrbuf_printf(wr, " %d+%d %d ",
3015 (req->preferredPositionInResponse ?
3016 *req->preferredPositionInResponse : 1),
3017 *req->numberOfTermsRequested,
3018 (res->stepSize ? *res->stepSize : 0));
3019 yaz_scan_to_wrbuf(wr, req->termListAndStartPoint,
3020 bsrr->attributeset);
3021 yaz_log(log_request, "Scan %s", wrbuf_buf(wr) );
3027 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
3031 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
3032 Z_SortResponse *res = (Z_SortResponse *)
3033 odr_malloc (assoc->encode, sizeof(*res));
3034 bend_sort_rr *bsrr = (bend_sort_rr *)
3035 odr_malloc (assoc->encode, sizeof(*bsrr));
3037 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3039 yaz_log(log_requestdetail, "Got SortRequest.");
3041 bsrr->num_input_setnames = req->num_inputResultSetNames;
3042 for (i=0;i<req->num_inputResultSetNames;i++)
3043 yaz_log(log_requestdetail, "Input resultset: '%s'",
3044 req->inputResultSetNames[i]);
3045 bsrr->input_setnames = req->inputResultSetNames;
3046 bsrr->referenceId = req->referenceId;
3047 bsrr->output_setname = req->sortedResultSetName;
3048 yaz_log(log_requestdetail, "Output resultset: '%s'",
3049 req->sortedResultSetName);
3050 bsrr->sort_sequence = req->sortSequence;
3051 /*FIXME - dump those sequences too */
3052 bsrr->stream = assoc->encode;
3053 bsrr->print = assoc->print;
3055 bsrr->sort_status = Z_SortResponse_failure;
3057 bsrr->errstring = 0;
3059 (*assoc->init->bend_sort)(assoc->backend, bsrr);
3061 res->referenceId = bsrr->referenceId;
3062 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
3063 res->resultSetStatus = 0;
3066 Z_DiagRecs *dr = zget_DiagRecs(assoc->encode,
3067 bsrr->errcode, bsrr->errstring);
3068 res->diagnostics = dr->diagRecs;
3069 res->num_diagnostics = dr->num_diagRecs;
3073 res->num_diagnostics = 0;
3074 res->diagnostics = 0;
3076 res->resultCount = 0;
3079 apdu->which = Z_APDU_sortResponse;
3080 apdu->u.sortResponse = res;
3083 WRBUF wr = wrbuf_alloc();
3084 wrbuf_printf(wr, "Sort ");
3086 wrbuf_printf(wr, " ERROR %d", bsrr->errcode);
3088 wrbuf_printf(wr, "OK -");
3089 wrbuf_printf(wr, " (");
3090 for (i = 0; i<req->num_inputResultSetNames; i++)
3093 wrbuf_printf(wr, ",");
3094 wrbuf_printf(wr, req->inputResultSetNames[i]);
3096 wrbuf_printf(wr, ")->%s ",req->sortedResultSetName);
3098 yaz_log(log_request, "%s", wrbuf_buf(wr) );
3104 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
3108 Z_DeleteResultSetRequest *req =
3109 reqb->apdu_request->u.deleteResultSetRequest;
3110 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
3111 odr_malloc (assoc->encode, sizeof(*res));
3112 bend_delete_rr *bdrr = (bend_delete_rr *)
3113 odr_malloc (assoc->encode, sizeof(*bdrr));
3114 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
3116 yaz_log(log_requestdetail, "Got DeleteRequest.");
3118 bdrr->num_setnames = req->num_resultSetList;
3119 bdrr->setnames = req->resultSetList;
3120 for (i = 0; i<req->num_resultSetList; i++)
3121 yaz_log(log_requestdetail, "resultset: '%s'",
3122 req->resultSetList[i]);
3123 bdrr->stream = assoc->encode;
3124 bdrr->print = assoc->print;
3125 bdrr->function = *req->deleteFunction;
3126 bdrr->referenceId = req->referenceId;
3128 if (bdrr->num_setnames > 0)
3130 bdrr->statuses = (int*)
3131 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
3132 bdrr->num_setnames);
3133 for (i = 0; i < bdrr->num_setnames; i++)
3134 bdrr->statuses[i] = 0;
3136 (*assoc->init->bend_delete)(assoc->backend, bdrr);
3138 res->referenceId = req->referenceId;
3140 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
3142 res->deleteListStatuses = 0;
3143 if (bdrr->num_setnames > 0)
3146 res->deleteListStatuses = (Z_ListStatuses *)
3147 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
3148 res->deleteListStatuses->num = bdrr->num_setnames;
3149 res->deleteListStatuses->elements =
3151 odr_malloc (assoc->encode,
3152 sizeof(*res->deleteListStatuses->elements) *
3153 bdrr->num_setnames);
3154 for (i = 0; i<bdrr->num_setnames; i++)
3156 res->deleteListStatuses->elements[i] =
3158 odr_malloc (assoc->encode,
3159 sizeof(**res->deleteListStatuses->elements));
3160 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
3161 res->deleteListStatuses->elements[i]->id =
3162 odr_strdup (assoc->encode, bdrr->setnames[i]);
3165 res->numberNotDeleted = 0;
3166 res->bulkStatuses = 0;
3167 res->deleteMessage = 0;
3170 apdu->which = Z_APDU_deleteResultSetResponse;
3171 apdu->u.deleteResultSetResponse = res;
3174 WRBUF wr = wrbuf_alloc();
3175 wrbuf_printf(wr, "Delete ");
3176 if (bdrr->delete_status)
3177 wrbuf_printf(wr, "ERROR %d", bdrr->delete_status);
3179 wrbuf_printf(wr, "OK -");
3180 for (i = 0; i<req->num_resultSetList; i++)
3181 wrbuf_printf(wr, " %s ", req->resultSetList[i]);
3182 yaz_log(log_request, "%s", wrbuf_buf(wr) );
3188 static void process_close(association *assoc, request *reqb)
3190 Z_Close *req = reqb->apdu_request->u.close;
3191 static char *reasons[] =
3198 "securityViolation",
3205 yaz_log(log_requestdetail, "Got Close, reason %s, message %s",
3206 reasons[*req->closeReason], req->diagnosticInformation ?
3207 req->diagnosticInformation : "NULL");
3208 if (assoc->version < 3) /* to make do_force respond with close */
3210 do_close_req(assoc, Z_Close_finished,
3211 "Association terminated by client", reqb);
3212 yaz_log(log_request,"Close OK");
3215 void save_referenceId (request *reqb, Z_ReferenceId *refid)
3219 reqb->len_refid = refid->len;
3220 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
3221 memcpy (reqb->refid, refid->buf, refid->len);
3225 reqb->len_refid = 0;
3230 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
3232 process_z_response (a, req, res);
3235 bend_request bend_request_mk (bend_association a)
3237 request *nreq = request_get (&a->outgoing);
3238 nreq->request_mem = nmem_create ();
3242 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
3247 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
3248 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
3249 id->len = id->size = req->len_refid;
3250 memcpy (id->buf, req->refid, req->len_refid);
3254 void bend_request_destroy (bend_request *req)
3256 nmem_destroy((*req)->request_mem);
3257 request_release(*req);
3261 int bend_backend_respond (bend_association a, bend_request req)
3265 r = process_z_request (a, req, &msg);
3267 yaz_log (YLOG_WARN, "%s", msg);
3271 void bend_request_setdata(bend_request r, void *p)
3276 void *bend_request_getdata(bend_request r)
3278 return r->clientData;
3281 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
3283 bend_segment_rr req;
3285 req.segment = reqb->apdu_request->u.segmentRequest;
3286 req.stream = assoc->encode;
3287 req.decode = assoc->decode;
3288 req.print = assoc->print;
3289 req.association = assoc;
3291 (*assoc->init->bend_segment)(assoc->backend, &req);
3296 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
3298 bend_esrequest_rr esrequest;
3299 const char *ext_name = "unknown";
3301 Z_ExtendedServicesRequest *req =
3302 reqb->apdu_request->u.extendedServicesRequest;
3303 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
3305 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
3307 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
3308 esrequest.stream = assoc->encode;
3309 esrequest.decode = assoc->decode;
3310 esrequest.print = assoc->print;
3311 esrequest.errcode = 0;
3312 esrequest.errstring = NULL;
3313 esrequest.request = reqb;
3314 esrequest.association = assoc;
3315 esrequest.taskPackage = 0;
3316 esrequest.referenceId = req->referenceId;
3319 if (esrequest.esr && esrequest.esr->taskSpecificParameters)
3321 switch(esrequest.esr->taskSpecificParameters->which)
3323 case Z_External_itemOrder:
3324 ext_name = "ItemOrder"; break;
3325 case Z_External_update:
3326 ext_name = "Update"; break;
3327 case Z_External_update0:
3328 ext_name = "Update0"; break;
3329 case Z_External_ESAdmin:
3330 ext_name = "Admin"; break;
3335 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
3337 /* If the response is being delayed, return NULL */
3338 if (esrequest.request == NULL)
3341 resp->referenceId = req->referenceId;
3343 if (esrequest.errcode == -1)
3345 /* Backend service indicates request will be processed */
3346 yaz_log(log_request, "Extended Service: %s (accepted)", ext_name);
3347 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
3349 else if (esrequest.errcode == 0)
3351 /* Backend service indicates request will be processed */
3352 yaz_log(log_request, "Extended Service: %s (done)", ext_name);
3353 *resp->operationStatus = Z_ExtendedServicesResponse_done;
3357 Z_DiagRecs *diagRecs =
3358 zget_DiagRecs(assoc->encode, esrequest.errcode,
3359 esrequest.errstring);
3360 /* Backend indicates error, request will not be processed */
3361 yaz_log(log_request, "Extended Service: %s (failed)", ext_name);
3362 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
3363 resp->num_diagnostics = diagRecs->num_diagRecs;
3364 resp->diagnostics = diagRecs->diagRecs;
3367 WRBUF wr = wrbuf_alloc();
3368 wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics);
3369 yaz_log(log_request, "EsRequest %s", wrbuf_buf(wr) );
3374 /* Do something with the members of bend_extendedservice */
3375 if (esrequest.taskPackage)
3376 resp->taskPackage = z_ext_record (assoc->encode, VAL_EXTENDED,
3377 (const char *) esrequest.taskPackage,
3379 yaz_log(YLOG_DEBUG,"Send the result apdu");
3386 * indent-tabs-mode: nil
3388 * vim: shiftwidth=4 tabstop=8 expandtab