1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2012 Index Data
3 * See the file LICENSE for details.
7 * \brief Implements GFS session logic.
9 * Frontend server logic.
11 * This code receives incoming APDUs, and handles client requests by means
14 * Some of the code is getting quite involved, compared to simpler servers -
15 * primarily because it is asynchronous both in the communication with
16 * the user and the backend. We think the complexity will pay off in
17 * the form of greater flexibility when more asynchronous facilities
20 * Memory management has become somewhat involved. In the simple case, where
21 * only one PDU is pending at a time, it will simply reuse the same memory,
22 * once it has found its working size. When we enable multiple concurrent
23 * operations, perhaps even with multiple parallel calls to the backend, it
24 * will maintain a pool of buffers for encoding and decoding, trying to
25 * minimize memory allocation/deallocation during normal operation.
38 #include <sys/types.h>
46 #define S_ISREG(x) (x & _S_IFREG)
55 #include <libxml/parser.h>
56 #include <libxml/tree.h>
59 #include <yaz/xmalloc.h>
60 #include <yaz/comstack.h>
64 #include <yaz/proto.h>
65 #include <yaz/oid_db.h>
67 #include <yaz/logrpn.h>
68 #include <yaz/querytowrbuf.h>
69 #include <yaz/statserv.h>
70 #include <yaz/diagbib1.h>
71 #include <yaz/charneg.h>
72 #include <yaz/otherinfo.h>
73 #include <yaz/yaz-util.h>
74 #include <yaz/pquery.h>
75 #include <yaz/oid_db.h>
78 #include <yaz/backend.h>
79 #include <yaz/yaz-ccl.h>
81 static void process_gdu_request(association *assoc, request *req);
82 static int process_z_request(association *assoc, request *req, char **msg);
83 static int process_gdu_response(association *assoc, request *req, Z_GDU *res);
84 static int process_z_response(association *assoc, request *req, Z_APDU *res);
85 static Z_APDU *process_initRequest(association *assoc, request *reqb);
86 static Z_External *init_diagnostics(ODR odr, int errcode,
87 const char *errstring);
88 static Z_APDU *process_searchRequest(association *assoc, request *reqb);
89 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
90 bend_search_rr *bsrr);
91 static Z_APDU *process_presentRequest(association *assoc, request *reqb);
92 static Z_APDU *process_scanRequest(association *assoc, request *reqb);
93 static Z_APDU *process_sortRequest(association *assoc, request *reqb);
94 static void process_close(association *assoc, request *reqb);
95 static Z_APDU *process_deleteRequest(association *assoc, request *reqb);
96 static Z_APDU *process_segmentRequest(association *assoc, request *reqb);
97 static Z_APDU *process_ESRequest(association *assoc, request *reqb);
99 /* dynamic logging levels */
100 static int logbits_set = 0;
101 static int log_session = 0; /* one-line logs for session */
102 static int log_sessiondetail = 0; /* more detailed stuff */
103 static int log_request = 0; /* one-line logs for requests */
104 static int log_requestdetail = 0; /* more detailed stuff */
106 /** get_logbits sets global loglevel bits */
107 static void get_logbits(void)
108 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
112 log_session = yaz_log_module_level("session");
113 log_sessiondetail = yaz_log_module_level("sessiondetail");
114 log_request = yaz_log_module_level("request");
115 log_requestdetail = yaz_log_module_level("requestdetail");
119 static void wr_diag(WRBUF w, int error, const char *addinfo)
121 wrbuf_printf(w, "ERROR %d+", error);
122 wrbuf_puts_replace_char(w, diagbib1_str(error), ' ', '_');
126 wrbuf_puts_replace_char(w, addinfo, ' ', '_');
131 static int odr_int_to_int(Odr_int v)
135 else if (v <= INT_MIN)
142 * Create and initialize a new association-handle.
143 * channel : iochannel for the current line.
144 * link : communications channel.
145 * Returns: 0 or a new association handle.
147 association *create_association(IOCHAN channel, COMSTACK link,
148 const char *apdufile)
154 if (!(anew = (association *)xmalloc(sizeof(*anew))))
158 anew->last_control = 0;
159 anew->client_chan = channel;
160 anew->client_link = link;
161 anew->cs_get_mask = 0;
162 anew->cs_put_mask = 0;
163 anew->cs_accept_mask = 0;
164 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
165 !(anew->encode = odr_createmem(ODR_ENCODE)))
167 if (apdufile && *apdufile)
171 if (!(anew->print = odr_createmem(ODR_PRINT)))
173 if (*apdufile == '@')
175 odr_setprint(anew->print, yaz_log_file());
177 else if (*apdufile != '-')
180 sprintf(filename, "%.200s.%ld", apdufile, (long)getpid());
181 if (!(f = fopen(filename, "w")))
183 yaz_log(YLOG_WARN|YLOG_ERRNO, "%s", filename);
186 setvbuf(f, 0, _IONBF, 0);
187 odr_setprint(anew->print, f);
192 anew->input_buffer = 0;
193 anew->input_buffer_len = 0;
195 anew->state = ASSOC_NEW;
196 request_initq(&anew->incoming);
197 request_initq(&anew->outgoing);
198 anew->proto = cs_getproto(link);
204 * Free association and release resources.
206 void destroy_association(association *h)
208 statserv_options_block *cb = statserv_getcontrol();
212 odr_destroy(h->decode);
213 odr_destroy(h->encode);
215 odr_destroy(h->print);
217 xfree(h->input_buffer);
219 (*cb->bend_close)(h->backend);
220 while ((req = request_deq(&h->incoming)))
221 request_release(req);
222 while ((req = request_deq(&h->outgoing)))
223 request_release(req);
224 request_delq(&h->incoming);
225 request_delq(&h->outgoing);
227 xmalloc_trav("session closed");
230 static void do_close_req(association *a, int reason, char *message,
233 Z_APDU *apdu = zget_APDU(a->encode, Z_APDU_close);
234 Z_Close *cls = apdu->u.close;
236 /* Purge request queue */
237 while (request_deq(&a->incoming));
238 while (request_deq(&a->outgoing));
241 yaz_log(log_requestdetail, "Sending Close PDU, reason=%d, message=%s",
242 reason, message ? message : "none");
243 *cls->closeReason = reason;
244 cls->diagnosticInformation = message;
245 process_z_response(a, req, apdu);
246 iochan_settimeout(a->client_chan, 20);
250 request_release(req);
251 yaz_log(log_requestdetail, "v2 client. No Close PDU");
252 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
255 a->state = ASSOC_DEAD;
258 static void do_close(association *a, int reason, char *message)
260 request *req = request_get(&a->outgoing);
261 do_close_req(a, reason, message, req);
265 int ir_read(IOCHAN h, int event)
267 association *assoc = (association *)iochan_getdata(h);
268 COMSTACK conn = assoc->client_link;
271 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
273 /* We aren't speaking to this fellow */
274 if (assoc->state == ASSOC_DEAD)
276 yaz_log(log_session, "Connection closed - end of session");
278 destroy_association(assoc);
282 assoc->cs_get_mask = EVENT_INPUT;
286 int res = cs_get(conn, &assoc->input_buffer,
287 &assoc->input_buffer_len);
288 if (res < 0 && cs_errno(conn) == CSBUFSIZE)
290 yaz_log(log_session, "Connection error: %s res=%d",
291 cs_errmsg(cs_errno(conn)), res);
292 req = request_get(&assoc->incoming); /* get a new request */
293 do_close_req(assoc, Z_Close_protocolError,
294 "Incoming package too large", req);
299 assoc->state = ASSOC_DEAD;
300 yaz_log(log_session, "Connection closed by client");
303 else if (res == 1) /* incomplete read - wait for more */
305 if (conn->io_pending & CS_WANT_WRITE)
306 assoc->cs_get_mask |= EVENT_OUTPUT;
307 iochan_setflag(h, assoc->cs_get_mask);
310 /* we got a complete PDU. Let's decode it */
311 yaz_log(YLOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
312 assoc->input_buffer[0] & 0xff,
313 assoc->input_buffer[1] & 0xff,
314 assoc->input_buffer[2] & 0xff);
315 req = request_get(&assoc->incoming); /* get a new request */
316 odr_reset(assoc->decode);
317 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
318 if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
320 yaz_log(YLOG_WARN, "ODR error on incoming PDU: %s [element %s] "
322 odr_errmsg(odr_geterror(assoc->decode)),
323 odr_getelement(assoc->decode),
324 (long) odr_offset(assoc->decode));
325 if (assoc->decode->error != OHTTP)
327 yaz_log(YLOG_WARN, "PDU dump:");
328 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
329 request_release(req);
330 do_close(assoc, Z_Close_protocolError, "Malformed package");
334 Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
335 assoc->state = ASSOC_DEAD;
336 process_gdu_response(assoc, req, p);
340 req->request_mem = odr_extract_mem(assoc->decode);
343 if (!z_GDU(assoc->print, &req->gdu_request, 0, 0))
344 yaz_log(YLOG_WARN, "ODR print error: %s",
345 odr_errmsg(odr_geterror(assoc->print)));
346 odr_reset(assoc->print);
348 request_enq(&assoc->incoming, req);
350 while (cs_more(conn));
356 * This is where PDUs from the client are read and the further
357 * processing is initiated. Flow of control moves down through the
358 * various process_* functions below, until the encoded result comes back up
359 * to the output handler in here.
361 * h : the I/O channel that has an outstanding event.
362 * event : the current outstanding event.
364 void ir_session(IOCHAN h, int event)
367 association *assoc = (association *)iochan_getdata(h);
368 COMSTACK conn = assoc->client_link;
371 assert(h && conn && assoc);
372 if (event == EVENT_TIMEOUT)
374 if (assoc->state != ASSOC_UP)
376 yaz_log(log_session, "Timeout. Closing connection");
377 /* do we need to lod this at all */
379 destroy_association(assoc);
384 yaz_log(log_sessiondetail, "Timeout. Sending Z39.50 Close");
385 do_close(assoc, Z_Close_lackOfActivity, 0);
389 if (event & assoc->cs_accept_mask)
391 if (!cs_accept(conn))
393 yaz_log(YLOG_WARN, "accept failed");
394 destroy_association(assoc);
398 iochan_clearflag(h, EVENT_OUTPUT);
399 if (conn->io_pending)
400 { /* cs_accept didn't complete */
401 assoc->cs_accept_mask =
402 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
403 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
405 iochan_setflag(h, assoc->cs_accept_mask);
408 { /* cs_accept completed. Prepare for reading (cs_get) */
409 assoc->cs_accept_mask = 0;
410 assoc->cs_get_mask = EVENT_INPUT;
411 iochan_setflag(h, assoc->cs_get_mask);
415 if (event & assoc->cs_get_mask) /* input */
417 if (!ir_read(h, event))
419 req = request_head(&assoc->incoming);
420 if (req->state == REQUEST_IDLE)
422 request_deq(&assoc->incoming);
423 process_gdu_request(assoc, req);
426 if (event & assoc->cs_put_mask)
428 request *req = request_head(&assoc->outgoing);
430 assoc->cs_put_mask = 0;
431 yaz_log(YLOG_DEBUG, "ir_session (output)");
432 req->state = REQUEST_PENDING;
433 switch (res = cs_put(conn, req->response, req->len_response))
436 yaz_log(log_sessiondetail, "Connection closed by client");
438 destroy_association(assoc);
441 case 0: /* all sent - release the request structure */
442 yaz_log(YLOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
444 yaz_log(YLOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
447 request_deq(&assoc->outgoing);
448 request_release(req);
449 if (!request_head(&assoc->outgoing))
450 { /* restore mask for cs_get operation ... */
451 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
452 iochan_setflag(h, assoc->cs_get_mask);
453 if (assoc->state == ASSOC_DEAD)
454 iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
458 assoc->cs_put_mask = EVENT_OUTPUT;
462 if (conn->io_pending & CS_WANT_WRITE)
463 assoc->cs_put_mask |= EVENT_OUTPUT;
464 if (conn->io_pending & CS_WANT_READ)
465 assoc->cs_put_mask |= EVENT_INPUT;
466 iochan_setflag(h, assoc->cs_put_mask);
469 if (event & EVENT_EXCEPT)
471 yaz_log(YLOG_WARN, "ir_session (exception)");
473 destroy_association(assoc);
478 static int process_z_request(association *assoc, request *req, char **msg);
481 static void assoc_init_reset(association *assoc)
484 assoc->init = (bend_initrequest *) xmalloc(sizeof(*assoc->init));
486 assoc->init->stream = assoc->encode;
487 assoc->init->print = assoc->print;
488 assoc->init->auth = 0;
489 assoc->init->referenceId = 0;
490 assoc->init->implementation_version = 0;
491 assoc->init->implementation_id = 0;
492 assoc->init->implementation_name = 0;
493 assoc->init->query_charset = 0;
494 assoc->init->records_in_same_charset = 0;
495 assoc->init->bend_sort = NULL;
496 assoc->init->bend_search = NULL;
497 assoc->init->bend_present = NULL;
498 assoc->init->bend_esrequest = NULL;
499 assoc->init->bend_delete = NULL;
500 assoc->init->bend_scan = NULL;
501 assoc->init->bend_segment = NULL;
502 assoc->init->bend_fetch = NULL;
503 assoc->init->bend_explain = NULL;
504 assoc->init->bend_srw_scan = NULL;
505 assoc->init->bend_srw_update = NULL;
506 assoc->init->named_result_sets = 0;
508 assoc->init->charneg_request = NULL;
509 assoc->init->charneg_response = NULL;
511 assoc->init->decode = assoc->decode;
512 assoc->init->peer_name =
513 odr_strdup(assoc->encode, cs_addrstr(assoc->client_link));
515 yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name);
518 static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num, Z_SRW_PDU *sr)
520 statserv_options_block *cb = statserv_getcontrol();
523 const char *encoding = "UTF-8";
525 bend_initresult *binitres;
527 yaz_log(log_requestdetail, "srw_bend_init config=%s", cb->configname);
528 assoc_init_reset(assoc);
532 Z_IdAuthentication *auth = (Z_IdAuthentication *)
533 odr_malloc(assoc->decode, sizeof(*auth));
536 len = strlen(sr->username) + 1;
538 len += strlen(sr->password) + 2;
539 yaz_log(log_requestdetail, "username=%s password-len=%ld",
541 (sr->password ? strlen(sr->password) : 0));
542 auth->which = Z_IdAuthentication_open;
543 auth->u.open = (char *) odr_malloc(assoc->decode, len);
544 strcpy(auth->u.open, sr->username);
545 if (sr->password && *sr->password)
547 strcat(auth->u.open, "/");
548 strcat(auth->u.open, sr->password);
550 assoc->init->auth = auth;
554 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
555 assoc->init->charneg_request = ce->u.charNeg3;
558 if (!(binitres = (*cb->bend_init)(assoc->init)))
560 assoc->state = ASSOC_DEAD;
561 yaz_add_srw_diagnostic(assoc->encode, d, num,
562 YAZ_SRW_AUTHENTICATION_ERROR, 0);
565 assoc->backend = binitres->handle;
566 assoc->init->auth = 0;
567 if (binitres->errcode)
569 int srw_code = yaz_diag_bib1_to_srw(binitres->errcode);
570 assoc->state = ASSOC_DEAD;
571 yaz_add_srw_diagnostic(assoc->encode, d, num, srw_code,
572 binitres->errstring);
580 static int retrieve_fetch(association *assoc, bend_fetch_rr *rr)
583 yaz_record_conv_t rc = 0;
584 const char *match_schema = 0;
585 Odr_oid *match_syntax = 0;
590 const char *input_schema = yaz_get_esn(rr->comp);
591 Odr_oid *input_syntax_raw = rr->request_format;
593 const char *backend_schema = 0;
594 Odr_oid *backend_syntax = 0;
596 r = yaz_retrieval_request(assoc->server->retrieval,
604 if (r == -1) /* error ? */
606 const char *details = yaz_retrieval_get_error(
607 assoc->server->retrieval);
609 rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
611 rr->errstring = odr_strdup(rr->stream, details);
614 else if (r == 1 || r == 3)
616 const char *details = input_schema;
618 YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_;
620 rr->errstring = odr_strdup(rr->stream, details);
625 rr->errcode = YAZ_BIB1_RECORD_SYNTAX_UNSUPP;
626 if (input_syntax_raw)
628 char oidbuf[OID_STR_MAX];
629 oid_oid_to_dotstring(input_syntax_raw, oidbuf);
630 rr->errstring = odr_strdup(rr->stream, oidbuf);
636 yaz_set_esn(&rr->comp, backend_schema, odr_getmem(rr->stream));
639 rr->request_format = backend_syntax;
641 (*assoc->init->bend_fetch)(assoc->backend, rr);
642 if (rc && rr->record && rr->errcode == 0 && rr->len > 0)
643 { /* post conversion must take place .. */
644 WRBUF output_record = wrbuf_alloc();
645 int r = yaz_record_conv_record(rc, rr->record, rr->len, output_record);
648 const char *details = yaz_record_conv_get_error(rc);
649 rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
651 rr->errstring = odr_strdup(rr->stream, details);
655 rr->len = wrbuf_len(output_record);
656 rr->record = (char *) odr_malloc(rr->stream, rr->len);
657 memcpy(rr->record, wrbuf_buf(output_record), rr->len);
659 wrbuf_destroy(output_record);
662 rr->output_format = match_syntax;
664 rr->schema = odr_strdup(rr->stream, match_schema);
666 (*assoc->init->bend_fetch)(assoc->backend, rr);
671 static int srw_bend_fetch(association *assoc, int pos,
672 Z_SRW_searchRetrieveRequest *srw_req,
673 Z_SRW_record *record,
674 const char **addinfo, int *last_in_set)
677 ODR o = assoc->encode;
679 rr.setname = "default";
682 rr.request_format = odr_oiddup(assoc->decode, yaz_oid_recsyn_xml);
684 rr.comp = (Z_RecordComposition *)
685 odr_malloc(assoc->decode, sizeof(*rr.comp));
686 rr.comp->which = Z_RecordComp_complex;
687 rr.comp->u.complex = (Z_CompSpec *)
688 odr_malloc(assoc->decode, sizeof(Z_CompSpec));
689 rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
690 odr_malloc(assoc->encode, sizeof(bool_t));
691 *rr.comp->u.complex->selectAlternativeSyntax = 0;
692 rr.comp->u.complex->num_dbSpecific = 0;
693 rr.comp->u.complex->dbSpecific = 0;
694 rr.comp->u.complex->num_recordSyntax = 0;
695 rr.comp->u.complex->recordSyntax = 0;
697 rr.comp->u.complex->generic = (Z_Specification *)
698 odr_malloc(assoc->decode, sizeof(Z_Specification));
700 /* schema uri = recordSchema (or NULL if recordSchema is not given) */
701 rr.comp->u.complex->generic->which = Z_Schema_uri;
702 rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
704 /* ESN = recordSchema if recordSchema is present */
705 rr.comp->u.complex->generic->elementSpec = 0;
706 if (srw_req->recordSchema)
708 rr.comp->u.complex->generic->elementSpec =
709 (Z_ElementSpec *) odr_malloc(assoc->encode, sizeof(Z_ElementSpec));
710 rr.comp->u.complex->generic->elementSpec->which =
711 Z_ElementSpec_elementSetName;
712 rr.comp->u.complex->generic->elementSpec->u.elementSetName =
713 srw_req->recordSchema;
716 rr.stream = assoc->encode;
717 rr.print = assoc->print;
725 rr.surrogate_flag = 0;
726 rr.schema = srw_req->recordSchema;
728 if (!assoc->init->bend_fetch)
731 retrieve_fetch(assoc, &rr);
733 *last_in_set = rr.last_in_set;
735 if (rr.errcode && rr.surrogate_flag)
737 int code = yaz_diag_bib1_to_srw(rr.errcode);
738 yaz_mk_sru_surrogate(o, record, pos, code, rr.errstring);
741 else if (rr.len >= 0)
743 record->recordData_buf = rr.record;
744 record->recordData_len = rr.len;
745 record->recordPosition = odr_intdup(o, pos);
746 record->recordSchema = odr_strdup_null(
747 o, rr.schema ? rr.schema : srw_req->recordSchema);
751 *addinfo = rr.errstring;
757 static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
758 Z_Query *query_result, char **sortkeys_p)
760 /* have a CQL query and CQL to PQF transform .. */
761 CQL_parser cp = cql_parser_create();
765 WRBUF rpn_buf = wrbuf_alloc();
768 r = cql_parser_string(cp, cql);
771 srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR;
775 struct cql_node *cn = cql_parser_result(cp);
778 r = cql_transform(ct, cn, wrbuf_vp_puts, rpn_buf);
780 srw_errcode = cql_transform_error(ct, &add);
784 int r = cql_sortby_to_sortkeys_buf(cn, out, sizeof(out)-1);
789 yaz_log(log_requestdetail, "srw_sortKeys '%s'", out);
790 *sortkeys_p = odr_strdup(odr, out);
794 yaz_log(log_requestdetail, "failed to create srw_sortKeys");
795 srw_errcode = YAZ_SRW_UNSUPP_SORT_TYPE;
801 /* Syntax & transform OK. */
802 /* Convert PQF string to Z39.50 to RPN query struct */
803 YAZ_PQF_Parser pp = yaz_pqf_create();
804 Z_RPNQuery *rpnquery = yaz_pqf_parse(pp, odr, wrbuf_cstr(rpn_buf));
809 int code = yaz_pqf_error(pp, &pqf_msg, &off);
810 yaz_log(YLOG_WARN, "PQF Parser Error %s (code %d)",
812 srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR;
816 query_result->which = Z_Query_type_1;
817 query_result->u.type_1 = rpnquery;
821 cql_parser_destroy(cp);
822 wrbuf_destroy(rpn_buf);
826 static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
827 Z_AttributesPlusTerm *result)
832 int srw_error = cql2pqf(odr, cql, ct, &query, &sortkeys);
835 if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
836 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* bad query type */
837 rpn = query.u.type_1;
838 if (!rpn->RPNStructure)
839 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be structure */
840 if (rpn->RPNStructure->which != Z_RPNStructure_simple)
841 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be simple */
842 if (rpn->RPNStructure->u.simple->which != Z_Operand_APT)
843 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be be attributes + term */
844 memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm,
850 static int ccl2pqf(ODR odr, const Odr_oct *ccl, CCL_bibset bibset,
851 bend_search_rr *bsrr)
854 struct ccl_rpn_node *node;
857 ccl0 = odr_strdupn(odr, (char*) ccl->buf, ccl->len);
858 if ((node = ccl_find_str(bibset, ccl0, &errcode, &pos)) == 0)
860 bsrr->errstring = (char*) ccl_err_msg(errcode);
861 return YAZ_SRW_QUERY_SYNTAX_ERROR; /* Query syntax error */
864 bsrr->query->which = Z_Query_type_1;
865 bsrr->query->u.type_1 = ccl_rpn_query(odr, node);
869 static void srw_bend_search(association *assoc,
874 Z_SRW_searchRetrieveResponse *srw_res = res->u.response;
877 Z_SRW_searchRetrieveRequest *srw_req = sr->u.request;
880 yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest");
881 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
882 if (srw_res->num_diagnostics == 0 && assoc->init)
885 rr.setname = "default";
888 rr.basenames = &srw_req->database;
892 rr.srw_setnameIdleTime = 0;
893 rr.estimated_hit_count = 0;
894 rr.partial_resultset = 0;
895 rr.query = (Z_Query *) odr_malloc(assoc->decode, sizeof(*rr.query));
896 rr.query->u.type_1 = 0;
897 rr.extra_args = sr->extra_args;
898 rr.extra_response_data = 0;
900 if (srw_req->query_type == Z_SRW_query_type_cql)
902 if (assoc->server && assoc->server->cql_transform)
904 int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
905 assoc->server->cql_transform,
911 yaz_add_srw_diagnostic(assoc->encode,
912 &srw_res->diagnostics,
913 &srw_res->num_diagnostics,
919 /* CQL query to backend. Wrap it - Z39.50 style */
920 ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
921 ext->direct_reference = odr_getoidbystr(assoc->decode,
922 "1.2.840.10003.16.2");
923 ext->indirect_reference = 0;
925 ext->which = Z_External_CQL;
926 ext->u.cql = srw_req->query.cql;
928 rr.query->which = Z_Query_type_104;
929 rr.query->u.type_104 = ext;
932 else if (srw_req->query_type == Z_SRW_query_type_pqf)
934 Z_RPNQuery *RPNquery;
935 YAZ_PQF_Parser pqf_parser;
937 pqf_parser = yaz_pqf_create();
939 RPNquery = yaz_pqf_parse(pqf_parser, assoc->decode,
945 int code = yaz_pqf_error(pqf_parser, &pqf_msg, &off);
946 yaz_log(log_requestdetail, "Parse error %d %s near offset %ld",
947 code, pqf_msg, (long) off);
948 srw_error = YAZ_SRW_QUERY_SYNTAX_ERROR;
951 rr.query->which = Z_Query_type_1;
952 rr.query->u.type_1 = RPNquery;
954 yaz_pqf_destroy(pqf_parser);
958 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
959 &srw_res->num_diagnostics,
960 YAZ_SRW_UNSUPP_QUERY_TYPE, 0);
962 if (rr.query->u.type_1)
964 rr.stream = assoc->encode;
965 rr.decode = assoc->decode;
966 rr.print = assoc->print;
967 if (srw_req->sort.sortKeys)
968 rr.srw_sortKeys = odr_strdup(assoc->encode,
969 srw_req->sort.sortKeys);
970 rr.association = assoc;
976 yaz_log_zquery_level(log_requestdetail,rr.query);
978 (assoc->init->bend_search)(assoc->backend, &rr);
981 if (rr.errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
987 srw_error = yaz_diag_bib1_to_srw(rr.errcode);
988 yaz_add_srw_diagnostic(assoc->encode,
989 &srw_res->diagnostics,
990 &srw_res->num_diagnostics,
991 srw_error, rr.errstring);
996 int number = srw_req->maximumRecords ?
997 odr_int_to_int(*srw_req->maximumRecords) : 0;
998 int start = srw_req->startRecord ?
999 odr_int_to_int(*srw_req->startRecord) : 1;
1001 yaz_log(log_requestdetail, "Request to pack %d+%d out of "
1003 start, number, rr.hits);
1005 srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
1008 srw_res->resultSetId =
1009 odr_strdup(assoc->encode, rr.srw_setname );
1010 srw_res->resultSetIdleTime =
1011 odr_intdup(assoc->encode, *rr.srw_setnameIdleTime );
1014 if (start > rr.hits || start < 1)
1016 /* if hits<=0 and start=1 we don't return a diagnostic */
1018 yaz_add_srw_diagnostic(
1020 &srw_res->diagnostics, &srw_res->num_diagnostics,
1021 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
1023 else if (number > 0)
1027 if (start + number > rr.hits)
1028 number = odr_int_to_int(rr.hits) - start + 1;
1030 /* Call bend_present if defined */
1031 if (assoc->init->bend_present)
1033 bend_present_rr *bprr = (bend_present_rr*)
1034 odr_malloc(assoc->decode, sizeof(*bprr));
1035 bprr->setname = "default";
1036 bprr->start = start;
1037 bprr->number = number;
1038 if (srw_req->recordSchema)
1040 bprr->comp = (Z_RecordComposition *) odr_malloc(assoc->decode,
1041 sizeof(*bprr->comp));
1042 bprr->comp->which = Z_RecordComp_simple;
1043 bprr->comp->u.simple = (Z_ElementSetNames *)
1044 odr_malloc(assoc->decode, sizeof(Z_ElementSetNames));
1045 bprr->comp->u.simple->which = Z_ElementSetNames_generic;
1046 bprr->comp->u.simple->u.generic = srw_req->recordSchema;
1052 bprr->stream = assoc->encode;
1053 bprr->referenceId = 0;
1054 bprr->print = assoc->print;
1055 bprr->association = assoc;
1057 bprr->errstring = NULL;
1058 (*assoc->init->bend_present)(assoc->backend, bprr);
1062 srw_error = yaz_diag_bib1_to_srw(bprr->errcode);
1063 yaz_add_srw_diagnostic(assoc->encode,
1064 &srw_res->diagnostics,
1065 &srw_res->num_diagnostics,
1066 srw_error, bprr->errstring);
1074 int packing = Z_SRW_recordPacking_string;
1075 if (srw_req->recordPacking)
1078 yaz_srw_str_to_pack(srw_req->recordPacking);
1080 packing = Z_SRW_recordPacking_string;
1082 srw_res->records = (Z_SRW_record *)
1083 odr_malloc(assoc->encode,
1084 number * sizeof(*srw_res->records));
1086 srw_res->extra_records = (Z_SRW_extra_record **)
1087 odr_malloc(assoc->encode,
1088 number*sizeof(*srw_res->extra_records));
1090 for (i = 0; i<number; i++)
1093 int last_in_set = 0;
1094 const char *addinfo = 0;
1096 srw_res->records[j].recordPacking = packing;
1097 srw_res->records[j].recordData_buf = 0;
1098 srw_res->extra_records[j] = 0;
1099 yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
1100 errcode = srw_bend_fetch(assoc, i+start, srw_req,
1101 srw_res->records + j,
1102 &addinfo, &last_in_set);
1105 yaz_add_srw_diagnostic(assoc->encode,
1106 &srw_res->diagnostics,
1107 &srw_res->num_diagnostics,
1108 yaz_diag_bib1_to_srw(errcode),
1113 if (srw_res->records[j].recordData_buf)
1118 srw_res->num_records = j;
1120 srw_res->records = 0;
1123 if (rr.extra_response_data)
1125 res->extraResponseData_buf = rr.extra_response_data;
1126 res->extraResponseData_len = strlen(rr.extra_response_data);
1128 if (rr.estimated_hit_count || rr.partial_resultset)
1130 yaz_add_srw_diagnostic(
1132 &srw_res->diagnostics,
1133 &srw_res->num_diagnostics,
1134 YAZ_SRW_RESULT_SET_CREATED_WITH_VALID_PARTIAL_RESULTS_AVAILABLE,
1142 const char *querystr = "?";
1143 const char *querytype = "?";
1144 WRBUF wr = wrbuf_alloc();
1146 switch (srw_req->query_type)
1148 case Z_SRW_query_type_cql:
1150 querystr = srw_req->query.cql;
1152 case Z_SRW_query_type_pqf:
1154 querystr = srw_req->query.pqf;
1157 wrbuf_printf(wr, "SRWSearch %s ", srw_req->database);
1158 if (srw_res->num_diagnostics)
1159 wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri);
1160 else if (*http_code != 200)
1161 wrbuf_printf(wr, "ERROR info:http/%d", *http_code);
1162 else if (srw_res->numberOfRecords)
1164 wrbuf_printf(wr, "OK " ODR_INT_PRINTF,
1165 (srw_res->numberOfRecords ?
1166 *srw_res->numberOfRecords : 0));
1168 wrbuf_printf(wr, " %s " ODR_INT_PRINTF "+%d",
1169 (srw_res->resultSetId ?
1170 srw_res->resultSetId : "-"),
1171 (srw_req->startRecord ? *srw_req->startRecord : 1),
1172 srw_res->num_records);
1173 yaz_log(log_request, "%s %s: %s", wrbuf_cstr(wr), querytype, querystr);
1178 static char *srw_bend_explain_default(bend_explain_rr *rr)
1181 xmlNodePtr ptr = (xmlNode *) rr->server_node_ptr;
1184 for (ptr = ptr->children; ptr; ptr = ptr->next)
1186 if (ptr->type != XML_ELEMENT_NODE)
1188 if (!strcmp((const char *) ptr->name, "explain"))
1191 xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
1195 ptr = xmlCopyNode(ptr, 1);
1197 xmlDocSetRootElement(doc, ptr);
1199 xmlDocDumpMemory(doc, &buf_out, &len);
1200 content = (char*) odr_malloc(rr->stream, 1+len);
1201 memcpy(content, buf_out, len);
1202 content[len] = '\0';
1206 rr->explain_buf = content;
1214 static void srw_bend_explain(association *assoc,
1216 Z_SRW_explainResponse *srw_res,
1219 Z_SRW_explainRequest *srw_req = sr->u.explain_request;
1220 yaz_log(log_requestdetail, "Got SRW ExplainRequest");
1222 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1227 rr.stream = assoc->encode;
1228 rr.decode = assoc->decode;
1229 rr.print = assoc->print;
1231 rr.database = srw_req->database;
1233 rr.server_node_ptr = assoc->server->server_node_ptr;
1235 rr.server_node_ptr = 0;
1236 rr.schema = "http://explain.z3950.org/dtd/2.0/";
1237 if (assoc->init->bend_explain)
1238 (*assoc->init->bend_explain)(assoc->backend, &rr);
1240 srw_bend_explain_default(&rr);
1244 int packing = Z_SRW_recordPacking_string;
1245 if (srw_req->recordPacking)
1248 yaz_srw_str_to_pack(srw_req->recordPacking);
1250 packing = Z_SRW_recordPacking_string;
1252 srw_res->record.recordSchema = rr.schema;
1253 srw_res->record.recordPacking = packing;
1254 srw_res->record.recordData_buf = rr.explain_buf;
1255 srw_res->record.recordData_len = strlen(rr.explain_buf);
1256 srw_res->record.recordPosition = 0;
1262 static void srw_bend_scan(association *assoc,
1264 Z_SRW_scanResponse *srw_res,
1267 Z_SRW_scanRequest *srw_req = sr->u.scan_request;
1268 yaz_log(log_requestdetail, "Got SRW ScanRequest");
1271 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1272 if (srw_res->num_diagnostics == 0 && assoc->init)
1275 struct scan_entry *save_entries;
1277 bend_scan_rr *bsrr = (bend_scan_rr *)
1278 odr_malloc(assoc->encode, sizeof(*bsrr));
1279 bsrr->num_bases = 1;
1280 bsrr->basenames = &srw_req->database;
1282 bsrr->num_entries = srw_req->maximumTerms ?
1283 odr_int_to_int(*srw_req->maximumTerms) : 10;
1284 bsrr->term_position = srw_req->responsePosition ?
1285 odr_int_to_int(*srw_req->responsePosition) : 1;
1288 bsrr->errstring = 0;
1289 bsrr->referenceId = 0;
1290 bsrr->stream = assoc->encode;
1291 bsrr->print = assoc->print;
1292 bsrr->step_size = &step_size;
1296 if (bsrr->num_entries > 0)
1299 bsrr->entries = (struct scan_entry *)
1300 odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
1302 for (i = 0; i<bsrr->num_entries; i++)
1304 bsrr->entries[i].term = 0;
1305 bsrr->entries[i].occurrences = 0;
1306 bsrr->entries[i].errcode = 0;
1307 bsrr->entries[i].errstring = 0;
1308 bsrr->entries[i].display_term = 0;
1311 save_entries = bsrr->entries; /* save it so we can compare later */
1313 if (srw_req->query_type == Z_SRW_query_type_pqf &&
1314 assoc->init->bend_scan)
1316 YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
1318 bsrr->term = yaz_pqf_scan(pqf_parser, assoc->decode,
1319 &bsrr->attributeset,
1320 srw_req->scanClause.pqf);
1321 yaz_pqf_destroy(pqf_parser);
1322 bsrr->scanClause = 0;
1323 ((int (*)(void *, bend_scan_rr *))
1324 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1326 else if (srw_req->query_type == Z_SRW_query_type_cql
1327 && assoc->init->bend_scan && assoc->server
1328 && assoc->server->cql_transform)
1331 bsrr->scanClause = 0;
1332 bsrr->attributeset = 0;
1333 bsrr->term = (Z_AttributesPlusTerm *)
1334 odr_malloc(assoc->decode, sizeof(*bsrr->term));
1335 srw_error = cql2pqf_scan(assoc->encode,
1336 srw_req->scanClause.cql,
1337 assoc->server->cql_transform,
1340 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1341 &srw_res->num_diagnostics,
1345 ((int (*)(void *, bend_scan_rr *))
1346 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1349 else if (srw_req->query_type == Z_SRW_query_type_cql
1350 && assoc->init->bend_srw_scan)
1353 bsrr->attributeset = 0;
1354 bsrr->scanClause = srw_req->scanClause.cql;
1355 ((int (*)(void *, bend_scan_rr *))
1356 (*assoc->init->bend_srw_scan))(assoc->backend, bsrr);
1360 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1361 &srw_res->num_diagnostics,
1362 YAZ_SRW_UNSUPP_OPERATION, "scan");
1367 if (bsrr->errcode == YAZ_BIB1_DATABASE_UNAVAILABLE)
1372 srw_error = yaz_diag_bib1_to_srw(bsrr->errcode);
1374 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
1375 &srw_res->num_diagnostics,
1376 srw_error, bsrr->errstring);
1378 else if (srw_res->num_diagnostics == 0 && bsrr->num_entries)
1381 srw_res->terms = (Z_SRW_scanTerm*)
1382 odr_malloc(assoc->encode, sizeof(*srw_res->terms) *
1385 srw_res->num_terms = bsrr->num_entries;
1386 for (i = 0; i<bsrr->num_entries; i++)
1388 Z_SRW_scanTerm *t = srw_res->terms + i;
1389 t->value = odr_strdup(assoc->encode, bsrr->entries[i].term);
1390 t->numberOfRecords =
1391 odr_intdup(assoc->encode, bsrr->entries[i].occurrences);
1393 if (save_entries == bsrr->entries &&
1394 bsrr->entries[i].display_term)
1396 /* the entries was _not_ set by the handler. So it's
1397 safe to test for new member display_term. It is
1400 t->displayTerm = odr_strdup(assoc->encode,
1401 bsrr->entries[i].display_term);
1409 WRBUF wr = wrbuf_alloc();
1410 const char *querytype = 0;
1411 const char *querystr = 0;
1413 switch(srw_req->query_type)
1415 case Z_SRW_query_type_pqf:
1417 querystr = srw_req->scanClause.pqf;
1419 case Z_SRW_query_type_cql:
1421 querystr = srw_req->scanClause.cql;
1424 querytype = "UNKNOWN";
1428 wrbuf_printf(wr, "SRWScan %s ", srw_req->database);
1430 if (srw_res->num_diagnostics)
1431 wrbuf_printf(wr, "ERROR %s - ", srw_res->diagnostics[0].uri);
1432 else if (srw_res->num_terms)
1433 wrbuf_printf(wr, "OK %d - ", srw_res->num_terms);
1435 wrbuf_printf(wr, "OK - - ");
1437 wrbuf_printf(wr, ODR_INT_PRINTF "+" ODR_INT_PRINTF " ",
1438 (srw_req->responsePosition ?
1439 *srw_req->responsePosition : 1),
1440 (srw_req->maximumTerms ?
1441 *srw_req->maximumTerms : 1));
1442 /* there is no step size in SRU/W ??? */
1443 wrbuf_printf(wr, "%s: %s ", querytype, querystr);
1444 yaz_log(log_request, "%s ", wrbuf_cstr(wr) );
1450 static void srw_bend_update(association *assoc,
1452 Z_SRW_updateResponse *srw_res,
1455 Z_SRW_updateRequest *srw_req = sr->u.update_request;
1456 yaz_log(log_session, "SRWUpdate action=%s", srw_req->operation);
1457 yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics );
1459 srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
1463 Z_SRW_extra_record *extra = srw_req->extra_record;
1465 rr.stream = assoc->encode;
1466 rr.print = assoc->print;
1468 rr.basenames = &srw_req->database;
1469 rr.operation = srw_req->operation;
1470 rr.operation_status = "failed";
1472 rr.record_versions = 0;
1473 rr.num_versions = 0;
1474 rr.record_packing = "string";
1475 rr.record_schema = 0;
1477 rr.extra_record_data = 0;
1478 rr.extra_request_data = 0;
1479 rr.extra_response_data = 0;
1485 if (rr.operation == 0)
1487 yaz_add_sru_update_diagnostic(
1488 assoc->encode, &srw_res->diagnostics,
1489 &srw_res->num_diagnostics,
1490 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1494 yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] );
1495 yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation );
1496 if (!strcmp( rr.operation, "delete"))
1498 if (srw_req->record && !srw_req->record->recordSchema)
1500 rr.record_schema = odr_strdup(
1502 srw_req->record->recordSchema);
1504 if (srw_req->record)
1506 rr.record_data = odr_strdupn(
1508 srw_req->record->recordData_buf,
1509 srw_req->record->recordData_len );
1511 if (extra && extra->extraRecordData_len)
1513 rr.extra_record_data = odr_strdupn(
1515 extra->extraRecordData_buf,
1516 extra->extraRecordData_len );
1518 if (srw_req->recordId)
1519 rr.record_id = srw_req->recordId;
1520 else if (extra && extra->recordIdentifier)
1521 rr.record_id = extra->recordIdentifier;
1523 else if (!strcmp(rr.operation, "replace"))
1525 if (srw_req->recordId)
1526 rr.record_id = srw_req->recordId;
1527 else if (extra && extra->recordIdentifier)
1528 rr.record_id = extra->recordIdentifier;
1531 yaz_add_sru_update_diagnostic(
1532 assoc->encode, &srw_res->diagnostics,
1533 &srw_res->num_diagnostics,
1534 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1535 "recordIdentifier");
1537 if (!srw_req->record)
1539 yaz_add_sru_update_diagnostic(
1540 assoc->encode, &srw_res->diagnostics,
1541 &srw_res->num_diagnostics,
1542 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1547 if (srw_req->record->recordSchema)
1548 rr.record_schema = odr_strdup(
1549 assoc->encode, srw_req->record->recordSchema);
1550 if (srw_req->record->recordData_len )
1552 rr.record_data = odr_strdupn(assoc->encode,
1553 srw_req->record->recordData_buf,
1554 srw_req->record->recordData_len );
1558 yaz_add_sru_update_diagnostic(
1559 assoc->encode, &srw_res->diagnostics,
1560 &srw_res->num_diagnostics,
1561 YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED,
1565 if (extra && extra->extraRecordData_len)
1567 rr.extra_record_data = odr_strdupn(
1569 extra->extraRecordData_buf,
1570 extra->extraRecordData_len );
1573 else if (!strcmp(rr.operation, "insert"))
1575 if (srw_req->recordId)
1576 rr.record_id = srw_req->recordId;
1578 rr.record_id = extra->recordIdentifier;
1580 if (srw_req->record)
1582 if (srw_req->record->recordSchema)
1583 rr.record_schema = odr_strdup(
1584 assoc->encode, srw_req->record->recordSchema);
1586 if (srw_req->record->recordData_len)
1587 rr.record_data = odr_strdupn(
1589 srw_req->record->recordData_buf,
1590 srw_req->record->recordData_len );
1592 if (extra && extra->extraRecordData_len)
1594 rr.extra_record_data = odr_strdupn(
1596 extra->extraRecordData_buf,
1597 extra->extraRecordData_len );
1601 yaz_add_sru_update_diagnostic(assoc->encode, &srw_res->diagnostics,
1602 &srw_res->num_diagnostics,
1603 YAZ_SRU_UPDATE_INVALID_ACTION,
1606 if (srw_req->record)
1608 const char *pack_str =
1609 yaz_srw_pack_to_str(srw_req->record->recordPacking);
1611 rr.record_packing = odr_strdup(assoc->encode, pack_str);
1614 if (srw_req->num_recordVersions)
1616 rr.record_versions = srw_req->recordVersions;
1617 rr.num_versions = srw_req->num_recordVersions;
1619 if (srw_req->extraRequestData_len)
1621 rr.extra_request_data = odr_strdupn(assoc->encode,
1622 srw_req->extraRequestData_buf,
1623 srw_req->extraRequestData_len );
1625 if (srw_res->num_diagnostics == 0)
1627 if ( assoc->init->bend_srw_update)
1628 (*assoc->init->bend_srw_update)(assoc->backend, &rr);
1630 yaz_add_sru_update_diagnostic(
1631 assoc->encode, &srw_res->diagnostics,
1632 &srw_res->num_diagnostics,
1633 YAZ_SRU_UPDATE_UNSPECIFIED_DATABASE_ERROR,
1634 "No Update backend handler");
1638 yaz_add_srw_diagnostic_uri(assoc->encode,
1639 &srw_res->diagnostics,
1640 &srw_res->num_diagnostics,
1644 srw_res->recordId = rr.record_id;
1645 srw_res->operationStatus = rr.operation_status;
1646 srw_res->recordVersions = rr.record_versions;
1647 srw_res->num_recordVersions = rr.num_versions;
1648 if (srw_res->extraResponseData_len)
1650 srw_res->extraResponseData_buf = rr.extra_response_data;
1651 srw_res->extraResponseData_len = strlen(rr.extra_response_data);
1653 if (srw_res->num_diagnostics == 0 && rr.record_data)
1655 srw_res->record = yaz_srw_get_record(assoc->encode);
1656 srw_res->record->recordSchema = rr.record_schema;
1657 if (rr.record_packing)
1659 int pack = yaz_srw_str_to_pack(rr.record_packing);
1663 pack = Z_SRW_recordPacking_string;
1664 yaz_log(YLOG_WARN, "Back packing %s from backend",
1667 srw_res->record->recordPacking = pack;
1669 srw_res->record->recordData_buf = rr.record_data;
1670 srw_res->record->recordData_len = strlen(rr.record_data);
1671 if (rr.extra_record_data)
1673 Z_SRW_extra_record *ex =
1674 yaz_srw_get_extra_record(assoc->encode);
1675 srw_res->extra_record = ex;
1676 ex->extraRecordData_buf = rr.extra_record_data;
1677 ex->extraRecordData_len = strlen(rr.extra_record_data);
1683 /* check if path is OK (1); BAD (0) */
1684 static int check_path(const char *path)
1688 if (strstr(path, ".."))
1693 static char *read_file(const char *fname, ODR o, size_t *sz)
1696 FILE *inf = fopen(fname, "rb");
1700 fseek(inf, 0L, SEEK_END);
1703 buf = (char *) odr_malloc(o, *sz);
1704 if (fread(buf, 1, *sz, inf) != *sz)
1705 yaz_log(YLOG_WARN|YLOG_ERRNO, "short read %s", fname);
1710 static void process_http_request(association *assoc, request *req)
1712 Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
1713 ODR o = assoc->encode;
1714 int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */
1716 Z_SOAP *soap_package = 0;
1719 Z_HTTP_Response *hres = 0;
1721 const char *stylesheet = 0; /* for now .. set later */
1722 Z_SRW_diagnostic *diagnostic = 0;
1723 int num_diagnostic = 0;
1724 const char *host = z_HTTP_header_lookup(hreq->headers, "Host");
1726 yaz_log(log_request, "%s %s HTTP/%s", hreq->method, hreq->path, hreq->version);
1727 if (!control_association(assoc, host, 0))
1729 p = z_get_HTTP_Response(o, 404);
1732 if (r == 2 && assoc->server && assoc->server->docpath
1733 && hreq->path[0] == '/'
1735 /* check if path is a proper prefix of documentroot */
1736 strncmp(hreq->path+1, assoc->server->docpath,
1737 strlen(assoc->server->docpath))
1740 if (!check_path(hreq->path))
1742 yaz_log(YLOG_LOG, "File %s access forbidden", hreq->path+1);
1743 p = z_get_HTTP_Response(o, 404);
1747 size_t content_size = 0;
1748 char *content_buf = read_file(hreq->path+1, o, &content_size);
1751 yaz_log(YLOG_LOG, "File %s not found", hreq->path+1);
1752 p = z_get_HTTP_Response(o, 404);
1756 const char *ctype = 0;
1757 yaz_mime_types types = yaz_mime_types_create();
1759 yaz_mime_types_add(types, "xsl", "application/xml");
1760 yaz_mime_types_add(types, "xml", "application/xml");
1761 yaz_mime_types_add(types, "css", "text/css");
1762 yaz_mime_types_add(types, "html", "text/html");
1763 yaz_mime_types_add(types, "htm", "text/html");
1764 yaz_mime_types_add(types, "txt", "text/plain");
1765 yaz_mime_types_add(types, "js", "application/x-javascript");
1767 yaz_mime_types_add(types, "gif", "image/gif");
1768 yaz_mime_types_add(types, "png", "image/png");
1769 yaz_mime_types_add(types, "jpg", "image/jpeg");
1770 yaz_mime_types_add(types, "jpeg", "image/jpeg");
1772 ctype = yaz_mime_lookup_fname(types, hreq->path);
1775 yaz_log(YLOG_LOG, "No mime type for %s", hreq->path+1);
1776 p = z_get_HTTP_Response(o, 404);
1780 p = z_get_HTTP_Response(o, 200);
1781 hres = p->u.HTTP_Response;
1782 hres->content_buf = content_buf;
1783 hres->content_len = content_size;
1784 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1786 yaz_mime_types_destroy(types);
1794 r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset);
1795 yaz_log(YLOG_DEBUG, "yaz_srw_decode returned %d", r);
1797 if (r == 2) /* not taken */
1799 r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset,
1800 &diagnostic, &num_diagnostic);
1801 yaz_log(YLOG_DEBUG, "yaz_sru_decode returned %d", r);
1803 if (r == 0) /* decode SRW/SRU OK .. */
1805 int http_code = 200;
1806 if (sr->which == Z_SRW_searchRetrieve_request)
1809 yaz_srw_get_pdu(assoc->encode, Z_SRW_searchRetrieve_response,
1811 stylesheet = sr->u.request->stylesheet;
1814 res->u.response->diagnostics = diagnostic;
1815 res->u.response->num_diagnostics = num_diagnostic;
1819 srw_bend_search(assoc, sr, res, &http_code);
1821 if (http_code == 200)
1822 soap_package->u.generic->p = res;
1824 else if (sr->which == Z_SRW_explain_request)
1826 Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_explain_response,
1828 stylesheet = sr->u.explain_request->stylesheet;
1831 res->u.explain_response->diagnostics = diagnostic;
1832 res->u.explain_response->num_diagnostics = num_diagnostic;
1834 srw_bend_explain(assoc, sr, res->u.explain_response, &http_code);
1835 if (http_code == 200)
1836 soap_package->u.generic->p = res;
1838 else if (sr->which == Z_SRW_scan_request)
1840 Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_scan_response,
1842 stylesheet = sr->u.scan_request->stylesheet;
1845 res->u.scan_response->diagnostics = diagnostic;
1846 res->u.scan_response->num_diagnostics = num_diagnostic;
1848 srw_bend_scan(assoc, sr, res->u.scan_response, &http_code);
1849 if (http_code == 200)
1850 soap_package->u.generic->p = res;
1852 else if (sr->which == Z_SRW_update_request)
1854 Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_update_response,
1856 yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest");
1859 res->u.update_response->diagnostics = diagnostic;
1860 res->u.update_response->num_diagnostics = num_diagnostic;
1862 yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics );
1863 srw_bend_update(assoc, sr, res->u.update_response, &http_code);
1864 if (http_code == 200)
1865 soap_package->u.generic->p = res;
1869 yaz_log(log_request, "SOAP ERROR");
1870 /* FIXME - what error, what query */
1872 z_soap_error(assoc->encode, soap_package,
1873 "SOAP-ENV:Client", "Bad method", 0);
1875 if (http_code == 200 || http_code == 500)
1877 static Z_SOAP_Handler soap_handlers[4] = {
1879 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
1880 {YAZ_XMLNS_SRU_v1_0, 0, (Z_SOAP_fun) yaz_srw_codec},
1881 {YAZ_XMLNS_UPDATE_v0_9, 0, (Z_SOAP_fun) yaz_ucp_codec},
1886 p = z_get_HTTP_Response(o, 200);
1887 hres = p->u.HTTP_Response;
1889 if (!stylesheet && assoc->server)
1890 stylesheet = assoc->server->stylesheet;
1892 /* empty stylesheet means NO stylesheet */
1893 if (stylesheet && *stylesheet == '\0')
1896 z_soap_codec_enc_xsl(assoc->encode, &soap_package,
1897 &hres->content_buf, &hres->content_len,
1898 soap_handlers, charset, stylesheet);
1899 hres->code = http_code;
1901 strcpy(ctype, "text/xml");
1902 if (charset && strlen(charset) < sizeof(ctype)-30)
1904 strcat(ctype, "; charset=");
1905 strcat(ctype, charset);
1907 z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
1910 p = z_get_HTTP_Response(o, http_code);
1914 p = z_get_HTTP_Response(o, 500);
1915 hres = p->u.HTTP_Response;
1916 if (!strcmp(hreq->version, "1.0"))
1918 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1919 if (v && !strcmp(v, "Keep-Alive"))
1923 hres->version = "1.0";
1927 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
1928 if (v && !strcmp(v, "close"))
1932 hres->version = "1.1";
1934 if (!keepalive || !assoc->last_control->keepalive)
1936 z_HTTP_header_add(o, &hres->headers, "Connection", "close");
1937 assoc->state = ASSOC_DEAD;
1938 assoc->cs_get_mask = 0;
1943 const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
1945 if (alive && yaz_isdigit(*(const unsigned char *) alive))
1949 if (t < 0 || t > 3600)
1951 iochan_settimeout(assoc->client_chan,t);
1952 z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
1954 process_gdu_response(assoc, req, p);
1957 static void process_gdu_request(association *assoc, request *req)
1959 if (req->gdu_request->which == Z_GDU_Z3950)
1962 req->apdu_request = req->gdu_request->u.z3950;
1963 if (process_z_request(assoc, req, &msg) < 0)
1964 do_close_req(assoc, Z_Close_systemProblem, msg, req);
1966 else if (req->gdu_request->which == Z_GDU_HTTP_Request)
1967 process_http_request(assoc, req);
1970 do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
1975 * Initiate request processing.
1977 static int process_z_request(association *assoc, request *req, char **msg)
1982 *msg = "Unknown Error";
1983 assert(req && req->state == REQUEST_IDLE);
1984 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
1986 *msg = "Missing InitRequest";
1989 switch (req->apdu_request->which)
1991 case Z_APDU_initRequest:
1992 res = process_initRequest(assoc, req); break;
1993 case Z_APDU_searchRequest:
1994 res = process_searchRequest(assoc, req); break;
1995 case Z_APDU_presentRequest:
1996 res = process_presentRequest(assoc, req); break;
1997 case Z_APDU_scanRequest:
1998 if (assoc->init->bend_scan)
1999 res = process_scanRequest(assoc, req);
2002 *msg = "Cannot handle Scan APDU";
2006 case Z_APDU_extendedServicesRequest:
2007 if (assoc->init->bend_esrequest)
2008 res = process_ESRequest(assoc, req);
2011 *msg = "Cannot handle Extended Services APDU";
2015 case Z_APDU_sortRequest:
2016 if (assoc->init->bend_sort)
2017 res = process_sortRequest(assoc, req);
2020 *msg = "Cannot handle Sort APDU";
2025 process_close(assoc, req);
2027 case Z_APDU_deleteResultSetRequest:
2028 if (assoc->init->bend_delete)
2029 res = process_deleteRequest(assoc, req);
2032 *msg = "Cannot handle Delete APDU";
2036 case Z_APDU_segmentRequest:
2037 if (assoc->init->bend_segment)
2039 res = process_segmentRequest(assoc, req);
2043 *msg = "Cannot handle Segment APDU";
2047 case Z_APDU_triggerResourceControlRequest:
2050 *msg = "Bad APDU received";
2055 yaz_log(YLOG_DEBUG, " result immediately available");
2056 retval = process_z_response(assoc, req, res);
2060 yaz_log(YLOG_DEBUG, " result unavailable");
2067 * Encode response, and transfer the request structure to the outgoing queue.
2069 static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
2071 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
2075 if (!z_GDU(assoc->print, &res, 0, 0))
2076 yaz_log(YLOG_WARN, "ODR print error: %s",
2077 odr_errmsg(odr_geterror(assoc->print)));
2078 odr_reset(assoc->print);
2080 if (!z_GDU(assoc->encode, &res, 0, 0))
2082 yaz_log(YLOG_WARN, "ODR error when encoding PDU: %s [element %s]",
2083 odr_errmsg(odr_geterror(assoc->decode)),
2084 odr_getelement(assoc->decode));
2087 req->response = odr_getbuf(assoc->encode, &req->len_response,
2088 &req->size_response);
2089 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
2090 odr_reset(assoc->encode);
2091 req->state = REQUEST_IDLE;
2092 request_enq(&assoc->outgoing, req);
2093 /* turn the work over to the ir_session handler */
2094 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
2095 assoc->cs_put_mask = EVENT_OUTPUT;
2096 /* Is there more work to be done? give that to the input handler too */
2099 req = request_head(&assoc->incoming);
2100 if (req && req->state == REQUEST_IDLE)
2102 request_deq(&assoc->incoming);
2103 process_gdu_request(assoc, req);
2112 * Encode response, and transfer the request structure to the outgoing queue.
2114 static int process_z_response(association *assoc, request *req, Z_APDU *res)
2116 Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*gres));
2117 gres->which = Z_GDU_Z3950;
2118 gres->u.z3950 = res;
2120 return process_gdu_response(assoc, req, gres);
2123 static char *get_vhost(Z_OtherInformation *otherInfo)
2125 return yaz_oi_get_string_oid(&otherInfo, yaz_oid_userinfo_proxy, 1, 0);
2129 * Handle init request.
2130 * At the moment, we don't check the options
2131 * anywhere else in the code - we just try not to do anything that would
2132 * break a naive client. We'll toss 'em into the association block when
2133 * we need them there.
2135 static Z_APDU *process_initRequest(association *assoc, request *reqb)
2137 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
2138 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
2139 Z_InitResponse *resp = apdu->u.initResponse;
2140 bend_initresult *binitres;
2142 statserv_options_block *cb = 0; /* by default no control for backend */
2144 if (control_association(assoc, get_vhost(req->otherInfo), 1))
2145 cb = statserv_getcontrol(); /* got control block for backend */
2147 if (cb && assoc->backend)
2148 (*cb->bend_close)(assoc->backend);
2150 yaz_log(log_requestdetail, "Got initRequest");
2151 if (req->implementationId)
2152 yaz_log(log_requestdetail, "Id: %s",
2153 req->implementationId);
2154 if (req->implementationName)
2155 yaz_log(log_requestdetail, "Name: %s",
2156 req->implementationName);
2157 if (req->implementationVersion)
2158 yaz_log(log_requestdetail, "Version: %s",
2159 req->implementationVersion);
2161 assoc_init_reset(assoc);
2163 assoc->init->auth = req->idAuthentication;
2164 assoc->init->referenceId = req->referenceId;
2166 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2168 Z_CharSetandLanguageNegotiation *negotiation =
2169 yaz_get_charneg_record (req->otherInfo);
2171 negotiation->which == Z_CharSetandLanguageNegotiation_proposal)
2172 assoc->init->charneg_request = negotiation;
2175 /* by default named_result_sets is 0 .. Enable it if client asks for it. */
2176 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
2177 assoc->init->named_result_sets = 1;
2182 if (req->implementationVersion)
2183 yaz_log(log_requestdetail, "Config: %s",
2186 iochan_settimeout(assoc->client_chan, cb->idle_timeout);
2188 /* we have a backend control block, so call that init function */
2189 if (!(binitres = (*cb->bend_init)(assoc->init)))
2191 yaz_log(YLOG_WARN, "Bad response from backend.");
2194 assoc->backend = binitres->handle;
2198 /* no backend. return error */
2199 binitres = (bend_initresult *)
2200 odr_malloc(assoc->encode, sizeof(*binitres));
2201 binitres->errstring = 0;
2202 binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
2203 iochan_settimeout(assoc->client_chan, 10);
2205 if ((assoc->init->bend_sort))
2206 yaz_log(YLOG_DEBUG, "Sort handler installed");
2207 if ((assoc->init->bend_search))
2208 yaz_log(YLOG_DEBUG, "Search handler installed");
2209 if ((assoc->init->bend_present))
2210 yaz_log(YLOG_DEBUG, "Present handler installed");
2211 if ((assoc->init->bend_esrequest))
2212 yaz_log(YLOG_DEBUG, "ESRequest handler installed");
2213 if ((assoc->init->bend_delete))
2214 yaz_log(YLOG_DEBUG, "Delete handler installed");
2215 if ((assoc->init->bend_scan))
2216 yaz_log(YLOG_DEBUG, "Scan handler installed");
2217 if ((assoc->init->bend_segment))
2218 yaz_log(YLOG_DEBUG, "Segment handler installed");
2220 resp->referenceId = req->referenceId;
2222 /* let's tell the client what we can do */
2223 if (ODR_MASK_GET(req->options, Z_Options_search))
2225 ODR_MASK_SET(resp->options, Z_Options_search);
2226 strcat(options, "srch");
2228 if (ODR_MASK_GET(req->options, Z_Options_present))
2230 ODR_MASK_SET(resp->options, Z_Options_present);
2231 strcat(options, " prst");
2233 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
2234 assoc->init->bend_delete)
2236 ODR_MASK_SET(resp->options, Z_Options_delSet);
2237 strcat(options, " del");
2239 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
2240 assoc->init->bend_esrequest)
2242 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
2243 strcat(options, " extendedServices");
2245 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets)
2246 && assoc->init->named_result_sets)
2248 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
2249 strcat(options, " namedresults");
2251 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
2253 ODR_MASK_SET(resp->options, Z_Options_scan);
2254 strcat(options, " scan");
2256 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
2258 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
2259 strcat(options, " concurrop");
2261 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
2263 ODR_MASK_SET(resp->options, Z_Options_sort);
2264 strcat(options, " sort");
2267 if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
2269 Z_OtherInformationUnit *p0;
2271 if (!assoc->init->charneg_response)
2273 if (assoc->init->query_charset)
2275 assoc->init->charneg_response = yaz_set_response_charneg(
2276 assoc->encode, assoc->init->query_charset, 0,
2277 assoc->init->records_in_same_charset);
2281 yaz_log(YLOG_WARN, "default query_charset not defined by backend");
2284 if (assoc->init->charneg_response
2285 && (p0=yaz_oi_update(&resp->otherInfo, assoc->encode, NULL, 0, 0)))
2287 p0->which = Z_OtherInfo_externallyDefinedInfo;
2288 p0->information.externallyDefinedInfo =
2289 assoc->init->charneg_response;
2290 ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
2291 strcat(options, " negotiation");
2294 if (ODR_MASK_GET(req->options, Z_Options_triggerResourceCtrl))
2295 ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
2297 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
2299 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
2300 assoc->version = 1; /* 1 & 2 are equivalent */
2302 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
2304 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
2307 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
2309 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
2313 yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
2315 if (*req->maximumRecordSize < assoc->maximumRecordSize)
2316 assoc->maximumRecordSize = odr_int_to_int(*req->maximumRecordSize);
2318 if (*req->preferredMessageSize < assoc->preferredMessageSize)
2319 assoc->preferredMessageSize = odr_int_to_int(*req->preferredMessageSize);
2321 resp->preferredMessageSize =
2322 odr_intdup(assoc->encode, assoc->preferredMessageSize);
2323 resp->maximumRecordSize =
2324 odr_intdup(assoc->encode, assoc->maximumRecordSize);
2326 resp->implementationId = odr_prepend(assoc->encode,
2327 assoc->init->implementation_id,
2328 resp->implementationId);
2330 resp->implementationVersion = odr_prepend(assoc->encode,
2331 assoc->init->implementation_version,
2332 resp->implementationVersion);
2334 resp->implementationName = odr_prepend(assoc->encode,
2335 assoc->init->implementation_name,
2336 odr_prepend(assoc->encode, "GFS", resp->implementationName));
2338 if (binitres->errcode)
2340 assoc->state = ASSOC_DEAD;
2341 resp->userInformationField =
2342 init_diagnostics(assoc->encode, binitres->errcode,
2343 binitres->errstring);
2347 assoc->state = ASSOC_UP;
2351 if (!req->idAuthentication)
2352 yaz_log(log_request, "Auth none");
2353 else if (req->idAuthentication->which == Z_IdAuthentication_open)
2355 const char *open = req->idAuthentication->u.open;
2356 const char *slash = strchr(open, '/');
2362 yaz_log(log_request, "Auth open %.*s", len, open);
2364 else if (req->idAuthentication->which == Z_IdAuthentication_idPass)
2366 const char *user = req->idAuthentication->u.idPass->userId;
2367 const char *group = req->idAuthentication->u.idPass->groupId;
2368 yaz_log(log_request, "Auth idPass %s %s",
2369 user ? user : "-", group ? group : "-");
2371 else if (req->idAuthentication->which
2372 == Z_IdAuthentication_anonymous)
2374 yaz_log(log_request, "Auth anonymous");
2378 yaz_log(log_request, "Auth other");
2383 WRBUF wr = wrbuf_alloc();
2384 wrbuf_printf(wr, "Init ");
2385 if (binitres->errcode)
2386 wrbuf_printf(wr, "ERROR %d", binitres->errcode);
2388 wrbuf_printf(wr, "OK -");
2389 wrbuf_printf(wr, " ID:%s Name:%s Version:%s",
2390 (req->implementationId ? req->implementationId :"-"),
2391 (req->implementationName ?
2392 req->implementationName : "-"),
2393 (req->implementationVersion ?
2394 req->implementationVersion : "-")
2396 yaz_log(log_request, "%s", wrbuf_cstr(wr));
2403 * Set the specified `errcode' and `errstring' into a UserInfo-1
2404 * external to be returned to the client in accordance with Z35.90
2405 * Implementor Agreement 5 (Returning diagnostics in an InitResponse):
2406 * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html
2408 static Z_External *init_diagnostics(ODR odr, int error, const char *addinfo)
2410 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2411 addinfo ? " -- " : "", addinfo ? addinfo : "");
2412 return zget_init_diagnostics(odr, error, addinfo);
2416 * nonsurrogate diagnostic record.
2418 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
2420 Z_Records *rec = (Z_Records *) odr_malloc(assoc->encode, sizeof(*rec));
2422 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2423 addinfo ? " -- " : "", addinfo ? addinfo : "");
2425 rec->which = Z_Records_NSD;
2426 rec->u.nonSurrogateDiagnostic = zget_DefaultDiagFormat(assoc->encode,
2432 * surrogate diagnostic.
2434 static Z_NamePlusRecord *surrogatediagrec(association *assoc,
2436 int error, const char *addinfo)
2438 yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error),
2439 addinfo ? " -- " : "", addinfo ? addinfo : "");
2440 return zget_surrogateDiagRec(assoc->encode, dbname, error, addinfo);
2443 static Z_Records *pack_records(association *a, char *setname, Odr_int start,
2444 Odr_int *num, Z_RecordComposition *comp,
2445 Odr_int *next, Odr_int *pres,
2446 Z_ReferenceId *referenceId,
2447 Odr_oid *oid, int *errcode)
2449 int recno, total_length = 0, dumped_records = 0;
2450 int toget = odr_int_to_int(*num);
2451 Z_Records *records =
2452 (Z_Records *) odr_malloc(a->encode, sizeof(*records));
2453 Z_NamePlusRecordList *reclist =
2454 (Z_NamePlusRecordList *) odr_malloc(a->encode, sizeof(*reclist));
2456 records->which = Z_Records_DBOSD;
2457 records->u.databaseOrSurDiagnostics = reclist;
2458 reclist->num_records = 0;
2461 return diagrec(a, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0);
2462 else if (toget == 0)
2463 reclist->records = odr_nullval();
2465 reclist->records = (Z_NamePlusRecord **)
2466 odr_malloc(a->encode, sizeof(*reclist->records) * toget);
2468 *pres = Z_PresentStatus_success;
2472 yaz_log(log_requestdetail, "Request to pack " ODR_INT_PRINTF "+%d %s", start, toget, setname);
2473 yaz_log(log_requestdetail, "pms=%d, mrs=%d", a->preferredMessageSize,
2474 a->maximumRecordSize);
2475 for (recno = odr_int_to_int(start); reclist->num_records < toget; recno++)
2478 Z_NamePlusRecord *thisrec;
2479 int this_length = 0;
2481 * we get the number of bytes allocated on the stream before any
2482 * allocation done by the backend - this should give us a reasonable
2483 * idea of the total size of the data so far.
2485 total_length = odr_total(a->encode) - dumped_records;
2491 freq.last_in_set = 0;
2492 freq.setname = setname;
2493 freq.surrogate_flag = 0;
2494 freq.number = recno;
2496 freq.request_format = oid;
2497 freq.output_format = 0;
2498 freq.stream = a->encode;
2499 freq.print = a->print;
2500 freq.referenceId = referenceId;
2503 retrieve_fetch(a, &freq);
2505 *next = freq.last_in_set ? 0 : recno + 1;
2509 if (!freq.surrogate_flag) /* non-surrogate diagnostic i.e. global */
2512 *pres = Z_PresentStatus_failure;
2513 /* for 'present request out of range',
2514 set addinfo to record position if not set */
2515 if (freq.errcode == YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE &&
2516 freq.errstring == 0)
2518 sprintf(s, "%d", recno);
2522 *errcode = freq.errcode;
2523 return diagrec(a, freq.errcode, freq.errstring);
2525 reclist->records[reclist->num_records] =
2526 surrogatediagrec(a, freq.basename, freq.errcode,
2528 reclist->num_records++;
2531 if (freq.record == 0) /* no error and no record ? */
2533 *pres = Z_PresentStatus_partial_4;
2534 *next = 0; /* signal end-of-set and stop */
2538 this_length = freq.len;
2540 this_length = odr_total(a->encode) - total_length - dumped_records;
2541 yaz_log(YLOG_DEBUG, " fetched record, len=%d, total=%d dumped=%d",
2542 this_length, total_length, dumped_records);
2543 if (a->preferredMessageSize > 0 &&
2544 this_length + total_length > a->preferredMessageSize)
2546 /* record is small enough, really */
2547 if (this_length <= a->preferredMessageSize && recno > start)
2549 yaz_log(log_requestdetail, " Dropped last normal-sized record");
2550 *pres = Z_PresentStatus_partial_2;
2555 /* record can only be fetched by itself */
2556 if (this_length < a->maximumRecordSize)
2558 yaz_log(log_requestdetail, " Record > prefmsgsz");
2561 yaz_log(YLOG_DEBUG, " Dropped it");
2562 reclist->records[reclist->num_records] =
2565 YAZ_BIB1_RECORD_EXCEEDS_PREFERRED_MESSAGE_SIZE, 0);
2566 reclist->num_records++;
2567 dumped_records += this_length;
2571 else /* too big entirely */
2573 yaz_log(log_requestdetail, "Record > maxrcdsz "
2575 this_length, a->maximumRecordSize);
2576 reclist->records[reclist->num_records] =
2579 YAZ_BIB1_RECORD_EXCEEDS_MAXIMUM_RECORD_SIZE, 0);
2580 reclist->num_records++;
2581 dumped_records += this_length;
2586 if (!(thisrec = (Z_NamePlusRecord *)
2587 odr_malloc(a->encode, sizeof(*thisrec))))
2589 thisrec->databaseName = odr_strdup_null(a->encode, freq.basename);
2590 thisrec->which = Z_NamePlusRecord_databaseRecord;
2592 if (!freq.output_format)
2594 yaz_log(YLOG_WARN, "bend_fetch output_format not set");
2597 thisrec->u.databaseRecord = z_ext_record_oid(
2598 a->encode, freq.output_format, freq.record, freq.len);
2599 if (!thisrec->u.databaseRecord)
2601 reclist->records[reclist->num_records] = thisrec;
2602 reclist->num_records++;
2603 if (freq.last_in_set)
2606 *num = reclist->num_records;
2610 static Z_APDU *process_searchRequest(association *assoc, request *reqb)
2612 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2613 bend_search_rr *bsrr =
2614 (bend_search_rr *)nmem_malloc(reqb->request_mem, sizeof(*bsrr));
2616 yaz_log(log_requestdetail, "Got SearchRequest.");
2617 bsrr->association = assoc;
2618 bsrr->referenceId = req->referenceId;
2619 bsrr->srw_sortKeys = 0;
2620 bsrr->srw_setname = 0;
2621 bsrr->srw_setnameIdleTime = 0;
2622 bsrr->estimated_hit_count = 0;
2623 bsrr->partial_resultset = 0;
2624 bsrr->extra_args = 0;
2625 bsrr->extra_response_data = 0;
2627 yaz_log(log_requestdetail, "ResultSet '%s'", req->resultSetName);
2628 if (req->databaseNames)
2631 for (i = 0; i < req->num_databaseNames; i++)
2632 yaz_log(log_requestdetail, "Database '%s'", req->databaseNames[i]);
2635 yaz_log_zquery_level(log_requestdetail,req->query);
2637 if (assoc->init->bend_search)
2639 bsrr->setname = req->resultSetName;
2640 bsrr->replace_set = *req->replaceIndicator;
2641 bsrr->num_bases = req->num_databaseNames;
2642 bsrr->basenames = req->databaseNames;
2643 bsrr->query = req->query;
2644 bsrr->stream = assoc->encode;
2645 nmem_transfer(odr_getmem(bsrr->stream), reqb->request_mem);
2646 bsrr->decode = assoc->decode;
2647 bsrr->print = assoc->print;
2650 bsrr->errstring = NULL;
2651 bsrr->search_info = NULL;
2652 bsrr->search_input = req->otherInfo;
2654 if (assoc->server && assoc->server->cql_transform
2655 && req->query->which == Z_Query_type_104
2656 && req->query->u.type_104->which == Z_External_CQL)
2658 /* have a CQL query and a CQL to PQF transform .. */
2660 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
2661 assoc->server->cql_transform, bsrr->query,
2662 &bsrr->srw_sortKeys);
2664 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2667 if (assoc->server && assoc->server->ccl_transform
2668 && req->query->which == Z_Query_type_2) /*CCL*/
2670 /* have a CCL query and a CCL to PQF transform .. */
2672 ccl2pqf(bsrr->stream, req->query->u.type_2,
2673 assoc->server->ccl_transform, bsrr);
2675 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
2679 (assoc->init->bend_search)(assoc->backend, bsrr);
2683 /* FIXME - make a diagnostic for it */
2684 yaz_log(YLOG_WARN,"Search not supported ?!?!");
2686 return response_searchRequest(assoc, reqb, bsrr);
2690 * Prepare a searchresponse based on the backend results. We probably want
2691 * to look at making the fetching of records nonblocking as well, but
2692 * so far, we'll keep things simple.
2693 * If bsrt is null, that means we're called in response to a communications
2694 * event, and we'll have to get the response for ourselves.
2696 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
2697 bend_search_rr *bsrt)
2699 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
2700 Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu));
2701 Z_SearchResponse *resp = (Z_SearchResponse *)
2702 odr_malloc(assoc->encode, sizeof(*resp));
2703 Odr_int *nulint = odr_intdup(assoc->encode, 0);
2704 Odr_int *next = odr_intdup(assoc->encode, 0);
2705 Odr_int *none = odr_intdup(assoc->encode, Z_SearchResponse_none);
2706 Odr_int returnedrecs = 0;
2708 apdu->which = Z_APDU_searchResponse;
2709 apdu->u.searchResponse = resp;
2710 resp->referenceId = req->referenceId;
2711 resp->additionalSearchInfo = 0;
2712 resp->otherInfo = 0;
2715 yaz_log(YLOG_FATAL, "Bad result from backend");
2718 else if (bsrt->errcode)
2720 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
2721 resp->resultCount = nulint;
2722 resp->numberOfRecordsReturned = nulint;
2723 resp->nextResultSetPosition = nulint;
2724 resp->searchStatus = odr_booldup(assoc->encode, 0);
2725 resp->resultSetStatus = none;
2726 resp->presentStatus = 0;
2730 bool_t *sr = odr_booldup(assoc->encode, 1);
2731 Odr_int *toget = odr_intdup(assoc->encode, 0);
2732 Z_RecordComposition comp, *compp = 0;
2734 yaz_log(log_requestdetail, "resultCount: " ODR_INT_PRINTF, bsrt->hits);
2737 resp->resultCount = &bsrt->hits;
2739 comp.which = Z_RecordComp_simple;
2740 /* how many records does the user agent want, then? */
2743 else if (bsrt->hits <= *req->smallSetUpperBound)
2745 *toget = bsrt->hits;
2746 if ((comp.u.simple = req->smallSetElementSetNames))
2749 else if (bsrt->hits < *req->largeSetLowerBound)
2751 *toget = *req->mediumSetPresentNumber;
2752 if (*toget > bsrt->hits)
2753 *toget = bsrt->hits;
2754 if ((comp.u.simple = req->mediumSetElementSetNames))
2760 if (*toget && !resp->records)
2762 Odr_int *presst = odr_intdup(assoc->encode, 0);
2763 /* Call bend_present if defined */
2764 if (assoc->init->bend_present)
2766 bend_present_rr *bprr = (bend_present_rr *)
2767 nmem_malloc(reqb->request_mem, sizeof(*bprr));
2768 bprr->setname = req->resultSetName;
2770 bprr->number = odr_int_to_int(*toget);
2771 bprr->format = req->preferredRecordSyntax;
2773 bprr->referenceId = req->referenceId;
2774 bprr->stream = assoc->encode;
2775 bprr->print = assoc->print;
2776 bprr->association = assoc;
2778 bprr->errstring = NULL;
2779 (*assoc->init->bend_present)(assoc->backend, bprr);
2783 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2784 *resp->presentStatus = Z_PresentStatus_failure;
2789 resp->records = pack_records(
2790 assoc, req->resultSetName, 1,
2791 toget, compp, next, presst, req->referenceId,
2792 req->preferredRecordSyntax, NULL);
2795 resp->numberOfRecordsReturned = toget;
2796 returnedrecs = *toget;
2797 resp->presentStatus = presst;
2801 if (*resp->resultCount)
2803 resp->numberOfRecordsReturned = nulint;
2804 resp->presentStatus = 0;
2806 resp->nextResultSetPosition = next;
2807 resp->searchStatus = sr;
2808 resp->resultSetStatus = 0;
2809 if (bsrt->estimated_hit_count)
2811 resp->resultSetStatus = odr_intdup(assoc->encode,
2812 Z_SearchResponse_estimate);
2814 else if (bsrt->partial_resultset)
2816 resp->resultSetStatus = odr_intdup(assoc->encode,
2817 Z_SearchResponse_subset);
2820 resp->additionalSearchInfo = bsrt->search_info;
2825 WRBUF wr = wrbuf_alloc();
2827 for (i = 0 ; i < req->num_databaseNames; i++)
2830 wrbuf_printf(wr, "+");
2831 wrbuf_puts(wr, req->databaseNames[i]);
2833 wrbuf_printf(wr, " ");
2836 wrbuf_printf(wr, "ERROR %d", bsrt->errcode);
2838 wrbuf_printf(wr, "OK " ODR_INT_PRINTF, bsrt->hits);
2839 wrbuf_printf(wr, " %s 1+" ODR_INT_PRINTF " ",
2840 req->resultSetName, returnedrecs);
2841 yaz_query_to_wrbuf(wr, req->query);
2843 yaz_log(log_request, "Search %s", wrbuf_cstr(wr));
2850 * Maybe we got a little over-friendly when we designed bend_fetch to
2851 * get only one record at a time. Some backends can optimise multiple-record
2852 * fetches, and at any rate, there is some overhead involved in
2853 * all that selecting and hopping around. Problem is, of course, that the
2854 * frontend can't know ahead of time how many records it'll need to
2855 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
2856 * is downright lousy as a bulk data transfer protocol.
2858 * To start with, we'll do the fetching of records from the backend
2859 * in one operation: To save some trips in and out of the event-handler,
2860 * and to simplify the interface to pack_records. At any rate, asynch
2861 * operation is more fun in operations that have an unpredictable execution
2862 * speed - which is normally more true for search than for present.
2864 static Z_APDU *process_presentRequest(association *assoc, request *reqb)
2866 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
2868 Z_PresentResponse *resp;
2873 yaz_log(log_requestdetail, "Got PresentRequest.");
2875 resp = (Z_PresentResponse *)odr_malloc(assoc->encode, sizeof(*resp));
2877 resp->presentStatus = odr_intdup(assoc->encode, 0);
2878 if (assoc->init->bend_present)
2880 bend_present_rr *bprr = (bend_present_rr *)
2881 nmem_malloc(reqb->request_mem, sizeof(*bprr));
2882 bprr->setname = req->resultSetId;
2883 bprr->start = odr_int_to_int(*req->resultSetStartPoint);
2884 bprr->number = odr_int_to_int(*req->numberOfRecordsRequested);
2885 bprr->format = req->preferredRecordSyntax;
2886 bprr->comp = req->recordComposition;
2887 bprr->referenceId = req->referenceId;
2888 bprr->stream = assoc->encode;
2889 bprr->print = assoc->print;
2890 bprr->association = assoc;
2892 bprr->errstring = NULL;
2893 (*assoc->init->bend_present)(assoc->backend, bprr);
2897 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
2898 *resp->presentStatus = Z_PresentStatus_failure;
2899 errcode = bprr->errcode;
2902 apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu));
2903 next = odr_intdup(assoc->encode, 0);
2904 num = odr_intdup(assoc->encode, 0);
2906 apdu->which = Z_APDU_presentResponse;
2907 apdu->u.presentResponse = resp;
2908 resp->referenceId = req->referenceId;
2909 resp->otherInfo = 0;
2913 *num = *req->numberOfRecordsRequested;
2915 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
2916 num, req->recordComposition, next,
2917 resp->presentStatus,
2918 req->referenceId, req->preferredRecordSyntax,
2923 WRBUF wr = wrbuf_alloc();
2924 wrbuf_printf(wr, "Present ");
2926 if (*resp->presentStatus == Z_PresentStatus_failure)
2927 wrbuf_printf(wr, "ERROR %d ", errcode);
2928 else if (*resp->presentStatus == Z_PresentStatus_success)
2929 wrbuf_printf(wr, "OK - ");
2931 wrbuf_printf(wr, "Partial " ODR_INT_PRINTF " - ",
2932 *resp->presentStatus);
2934 wrbuf_printf(wr, " %s " ODR_INT_PRINTF "+" ODR_INT_PRINTF " ",
2935 req->resultSetId, *req->resultSetStartPoint,
2936 *req->numberOfRecordsRequested);
2937 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
2942 resp->numberOfRecordsReturned = num;
2943 resp->nextResultSetPosition = next;
2949 * Scan was implemented rather in a hurry, and with support for only the basic
2950 * elements of the service in the backend API. Suggestions are welcome.
2952 static Z_APDU *process_scanRequest(association *assoc, request *reqb)
2954 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
2955 Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu));
2956 Z_ScanResponse *res = (Z_ScanResponse *)
2957 odr_malloc(assoc->encode, sizeof(*res));
2958 Odr_int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
2959 Odr_int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
2960 Z_ListEntries *ents = (Z_ListEntries *)
2961 odr_malloc(assoc->encode, sizeof(*ents));
2962 Z_DiagRecs *diagrecs_p = NULL;
2963 bend_scan_rr *bsrr = (bend_scan_rr *)
2964 odr_malloc(assoc->encode, sizeof(*bsrr));
2965 struct scan_entry *save_entries;
2968 yaz_log(log_requestdetail, "Got ScanRequest");
2970 apdu->which = Z_APDU_scanResponse;
2971 apdu->u.scanResponse = res;
2972 res->referenceId = req->referenceId;
2974 /* if step is absent, set it to 0 */
2976 step_size = odr_int_to_int(*req->stepSize);
2979 res->scanStatus = scanStatus;
2980 res->numberOfEntriesReturned = numberOfEntriesReturned;
2981 res->positionOfTerm = 0;
2982 res->entries = ents;
2983 ents->num_entries = 0;
2984 ents->entries = NULL;
2985 ents->num_nonsurrogateDiagnostics = 0;
2986 ents->nonsurrogateDiagnostics = NULL;
2987 res->attributeSet = 0;
2990 if (req->databaseNames)
2993 for (i = 0; i < req->num_databaseNames; i++)
2994 yaz_log(log_requestdetail, "Database '%s'", req->databaseNames[i]);
2996 bsrr->scanClause = 0;
2998 bsrr->errstring = 0;
2999 bsrr->num_bases = req->num_databaseNames;
3000 bsrr->basenames = req->databaseNames;
3001 bsrr->num_entries = odr_int_to_int(*req->numberOfTermsRequested);
3002 bsrr->term = req->termListAndStartPoint;
3003 bsrr->referenceId = req->referenceId;
3004 bsrr->stream = assoc->encode;
3005 bsrr->print = assoc->print;
3006 bsrr->step_size = &step_size;
3007 bsrr->setname = yaz_oi_get_string_oid(&req->otherInfo,
3008 yaz_oid_userinfo_scan_set, 1, 0);
3010 /* For YAZ 2.0 and earlier it was the backend handler that
3011 initialized entries (member display_term did not exist)
3012 YAZ 2.0 and later sets 'entries' and initialize all members
3013 including 'display_term'. If YAZ 2.0 or later sees that
3014 entries was modified - we assume that it is an old handler and
3015 that 'display_term' is _not_ set.
3017 if (bsrr->num_entries > 0)
3020 bsrr->entries = (struct scan_entry *)
3021 odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
3023 for (i = 0; i<bsrr->num_entries; i++)
3025 bsrr->entries[i].term = 0;
3026 bsrr->entries[i].occurrences = 0;
3027 bsrr->entries[i].errcode = 0;
3028 bsrr->entries[i].errstring = 0;
3029 bsrr->entries[i].display_term = 0;
3032 save_entries = bsrr->entries; /* save it so we can compare later */
3034 bsrr->attributeset = req->attributeSet;
3035 log_scan_term_level(log_requestdetail, req->termListAndStartPoint,
3036 bsrr->attributeset);
3037 bsrr->term_position = req->preferredPositionInResponse ?
3038 odr_int_to_int(*req->preferredPositionInResponse) : 1;
3040 ((int (*)(void *, bend_scan_rr *))
3041 (*assoc->init->bend_scan))(assoc->backend, bsrr);
3044 diagrecs_p = zget_DiagRecs(assoc->encode,
3045 bsrr->errcode, bsrr->errstring);
3049 Z_Entry **tab = (Z_Entry **)
3050 odr_malloc(assoc->encode, sizeof(*tab) * bsrr->num_entries);
3052 if (bsrr->status == BEND_SCAN_PARTIAL)
3053 *scanStatus = Z_Scan_partial_5;
3055 *scanStatus = Z_Scan_success;
3056 res->stepSize = odr_intdup(assoc->encode, step_size);
3057 ents->entries = tab;
3058 ents->num_entries = bsrr->num_entries;
3059 res->numberOfEntriesReturned = odr_intdup(assoc->encode,
3061 res->positionOfTerm = odr_intdup(assoc->encode, bsrr->term_position);
3062 for (i = 0; i < bsrr->num_entries; i++)
3068 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
3069 if (bsrr->entries[i].occurrences >= 0)
3071 e->which = Z_Entry_termInfo;
3072 e->u.termInfo = t = (Z_TermInfo *)
3073 odr_malloc(assoc->encode, sizeof(*t));
3074 t->suggestedAttributes = 0;
3076 if (save_entries == bsrr->entries &&
3077 bsrr->entries[i].display_term)
3079 /* the entries was _not_ set by the handler. So it's
3080 safe to test for new member display_term. It is
3083 t->displayTerm = odr_strdup(assoc->encode,
3084 bsrr->entries[i].display_term);
3086 t->alternativeTerm = 0;
3087 t->byAttributes = 0;
3088 t->otherTermInfo = 0;
3089 t->globalOccurrences = &bsrr->entries[i].occurrences;
3090 t->term = (Z_Term *)
3091 odr_malloc(assoc->encode, sizeof(*t->term));
3092 t->term->which = Z_Term_general;
3093 t->term->u.general = o =
3094 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
3095 o->buf = (unsigned char *)
3096 odr_malloc(assoc->encode, o->len = o->size =
3097 strlen(bsrr->entries[i].term));
3098 memcpy(o->buf, bsrr->entries[i].term, o->len);
3099 yaz_log(YLOG_DEBUG, " term #%d: '%s' (" ODR_INT_PRINTF ")", i,
3100 bsrr->entries[i].term, bsrr->entries[i].occurrences);
3104 Z_DiagRecs *drecs = zget_DiagRecs(assoc->encode,
3105 bsrr->entries[i].errcode,
3106 bsrr->entries[i].errstring);
3107 assert(drecs->num_diagRecs == 1);
3108 e->which = Z_Entry_surrogateDiagnostic;
3109 assert(drecs->diagRecs[0]);
3110 e->u.surrogateDiagnostic = drecs->diagRecs[0];
3116 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
3117 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
3122 WRBUF wr = wrbuf_alloc();
3123 wrbuf_printf(wr, "Scan ");
3124 for (i = 0 ; i < req->num_databaseNames; i++)
3127 wrbuf_printf(wr, "+");
3128 wrbuf_puts(wr, req->databaseNames[i]);
3131 wrbuf_printf(wr, " ");
3134 wr_diag(wr, bsrr->errcode, bsrr->errstring);
3136 wrbuf_printf(wr, "OK");
3138 wrbuf_printf(wr, " " ODR_INT_PRINTF " - " ODR_INT_PRINTF "+"
3139 ODR_INT_PRINTF "+" ODR_INT_PRINTF,
3140 res->numberOfEntriesReturned ?
3141 *res->numberOfEntriesReturned : 0,
3142 (req->preferredPositionInResponse ?
3143 *req->preferredPositionInResponse : 1),
3144 *req->numberOfTermsRequested,
3145 (res->stepSize ? *res->stepSize : 1));
3148 wrbuf_printf(wr, "+%s", bsrr->setname);
3150 wrbuf_printf(wr, " ");
3151 yaz_scan_to_wrbuf(wr, req->termListAndStartPoint,
3152 bsrr->attributeset);
3153 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3159 static Z_APDU *process_sortRequest(association *assoc, request *reqb)
3162 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
3163 Z_SortResponse *res = (Z_SortResponse *)
3164 odr_malloc(assoc->encode, sizeof(*res));
3165 bend_sort_rr *bsrr = (bend_sort_rr *)
3166 odr_malloc(assoc->encode, sizeof(*bsrr));
3168 Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu));
3170 yaz_log(log_requestdetail, "Got SortRequest.");
3172 bsrr->num_input_setnames = req->num_inputResultSetNames;
3173 for (i=0;i<req->num_inputResultSetNames;i++)
3174 yaz_log(log_requestdetail, "Input resultset: '%s'",
3175 req->inputResultSetNames[i]);
3176 bsrr->input_setnames = req->inputResultSetNames;
3177 bsrr->referenceId = req->referenceId;
3178 bsrr->output_setname = req->sortedResultSetName;
3179 yaz_log(log_requestdetail, "Output resultset: '%s'",
3180 req->sortedResultSetName);
3181 bsrr->sort_sequence = req->sortSequence;
3182 /*FIXME - dump those sequences too */
3183 bsrr->stream = assoc->encode;
3184 bsrr->print = assoc->print;
3186 bsrr->sort_status = Z_SortResponse_failure;
3188 bsrr->errstring = 0;
3190 (*assoc->init->bend_sort)(assoc->backend, bsrr);
3192 res->referenceId = bsrr->referenceId;
3193 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
3194 res->resultSetStatus = 0;
3197 Z_DiagRecs *dr = zget_DiagRecs(assoc->encode,
3198 bsrr->errcode, bsrr->errstring);
3199 res->diagnostics = dr->diagRecs;
3200 res->num_diagnostics = dr->num_diagRecs;
3204 res->num_diagnostics = 0;
3205 res->diagnostics = 0;
3207 res->resultCount = 0;
3210 apdu->which = Z_APDU_sortResponse;
3211 apdu->u.sortResponse = res;
3214 WRBUF wr = wrbuf_alloc();
3215 wrbuf_printf(wr, "Sort ");
3217 wrbuf_printf(wr, " ERROR %d", bsrr->errcode);
3219 wrbuf_printf(wr, "OK -");
3220 wrbuf_printf(wr, " (");
3221 for (i = 0; i<req->num_inputResultSetNames; i++)
3224 wrbuf_printf(wr, "+");
3225 wrbuf_puts(wr, req->inputResultSetNames[i]);
3227 wrbuf_printf(wr, ")->%s ",req->sortedResultSetName);
3229 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3235 static Z_APDU *process_deleteRequest(association *assoc, request *reqb)
3238 Z_DeleteResultSetRequest *req =
3239 reqb->apdu_request->u.deleteResultSetRequest;
3240 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
3241 odr_malloc(assoc->encode, sizeof(*res));
3242 bend_delete_rr *bdrr = (bend_delete_rr *)
3243 odr_malloc(assoc->encode, sizeof(*bdrr));
3244 Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu));
3246 yaz_log(log_requestdetail, "Got DeleteRequest.");
3248 bdrr->num_setnames = req->num_resultSetList;
3249 bdrr->setnames = req->resultSetList;
3250 for (i = 0; i<req->num_resultSetList; i++)
3251 yaz_log(log_requestdetail, "resultset: '%s'",
3252 req->resultSetList[i]);
3253 bdrr->stream = assoc->encode;
3254 bdrr->print = assoc->print;
3255 bdrr->function = odr_int_to_int(*req->deleteFunction);
3256 bdrr->referenceId = req->referenceId;
3258 if (bdrr->num_setnames > 0)
3260 bdrr->statuses = (int*)
3261 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
3262 bdrr->num_setnames);
3263 for (i = 0; i < bdrr->num_setnames; i++)
3264 bdrr->statuses[i] = 0;
3266 (*assoc->init->bend_delete)(assoc->backend, bdrr);
3268 res->referenceId = req->referenceId;
3270 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
3272 res->deleteListStatuses = 0;
3273 if (bdrr->num_setnames > 0)
3276 res->deleteListStatuses = (Z_ListStatuses *)
3277 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
3278 res->deleteListStatuses->num = bdrr->num_setnames;
3279 res->deleteListStatuses->elements =
3281 odr_malloc(assoc->encode,
3282 sizeof(*res->deleteListStatuses->elements) *
3283 bdrr->num_setnames);
3284 for (i = 0; i<bdrr->num_setnames; i++)
3286 res->deleteListStatuses->elements[i] =
3288 odr_malloc(assoc->encode,
3289 sizeof(**res->deleteListStatuses->elements));
3290 res->deleteListStatuses->elements[i]->status =
3291 odr_intdup(assoc->encode, bdrr->statuses[i]);
3292 res->deleteListStatuses->elements[i]->id =
3293 odr_strdup(assoc->encode, bdrr->setnames[i]);
3296 res->numberNotDeleted = 0;
3297 res->bulkStatuses = 0;
3298 res->deleteMessage = 0;
3301 apdu->which = Z_APDU_deleteResultSetResponse;
3302 apdu->u.deleteResultSetResponse = res;
3305 WRBUF wr = wrbuf_alloc();
3306 wrbuf_printf(wr, "Delete ");
3307 if (bdrr->delete_status)
3308 wrbuf_printf(wr, "ERROR %d", bdrr->delete_status);
3310 wrbuf_printf(wr, "OK -");
3311 for (i = 0; i<req->num_resultSetList; i++)
3312 wrbuf_printf(wr, " %s ", req->resultSetList[i]);
3313 yaz_log(log_request, "%s", wrbuf_cstr(wr) );
3319 static void process_close(association *assoc, request *reqb)
3321 Z_Close *req = reqb->apdu_request->u.close;
3322 static char *reasons[] =
3329 "securityViolation",
3336 yaz_log(log_requestdetail, "Got Close, reason %s, message %s",
3337 reasons[*req->closeReason], req->diagnosticInformation ?
3338 req->diagnosticInformation : "NULL");
3339 if (assoc->version < 3) /* to make do_force respond with close */
3341 do_close_req(assoc, Z_Close_finished,
3342 "Association terminated by client", reqb);
3343 yaz_log(log_request,"Close OK");
3346 static Z_APDU *process_segmentRequest(association *assoc, request *reqb)
3348 bend_segment_rr req;
3350 req.segment = reqb->apdu_request->u.segmentRequest;
3351 req.stream = assoc->encode;
3352 req.decode = assoc->decode;
3353 req.print = assoc->print;
3354 req.association = assoc;
3356 (*assoc->init->bend_segment)(assoc->backend, &req);
3361 static Z_APDU *process_ESRequest(association *assoc, request *reqb)
3363 bend_esrequest_rr esrequest;
3364 const char *ext_name = "unknown";
3366 Z_ExtendedServicesRequest *req =
3367 reqb->apdu_request->u.extendedServicesRequest;
3368 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
3370 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
3372 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
3373 esrequest.stream = assoc->encode;
3374 esrequest.decode = assoc->decode;
3375 esrequest.print = assoc->print;
3376 esrequest.errcode = 0;
3377 esrequest.errstring = NULL;
3378 esrequest.association = assoc;
3379 esrequest.taskPackage = 0;
3380 esrequest.referenceId = req->referenceId;
3382 if (esrequest.esr && esrequest.esr->taskSpecificParameters)
3384 switch(esrequest.esr->taskSpecificParameters->which)
3386 case Z_External_itemOrder:
3387 ext_name = "ItemOrder"; break;
3388 case Z_External_update:
3389 ext_name = "Update"; break;
3390 case Z_External_update0:
3391 ext_name = "Update0"; break;
3392 case Z_External_ESAdmin:
3393 ext_name = "Admin"; break;
3398 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
3400 resp->referenceId = req->referenceId;
3402 if (esrequest.errcode == -1)
3404 /* Backend service indicates request will be processed */
3405 yaz_log(log_request, "Extended Service: %s (accepted)", ext_name);
3406 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
3408 else if (esrequest.errcode == 0)
3410 /* Backend service indicates request will be processed */
3411 yaz_log(log_request, "Extended Service: %s (done)", ext_name);
3412 *resp->operationStatus = Z_ExtendedServicesResponse_done;
3416 Z_DiagRecs *diagRecs =
3417 zget_DiagRecs(assoc->encode, esrequest.errcode,
3418 esrequest.errstring);
3419 /* Backend indicates error, request will not be processed */
3420 yaz_log(log_request, "Extended Service: %s (failed)", ext_name);
3421 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
3422 resp->num_diagnostics = diagRecs->num_diagRecs;
3423 resp->diagnostics = diagRecs->diagRecs;
3426 WRBUF wr = wrbuf_alloc();
3427 wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics);
3428 yaz_log(log_request, "EsRequest %s", wrbuf_cstr(wr) );
3433 /* Do something with the members of bend_extendedservice */
3434 if (esrequest.taskPackage)
3436 resp->taskPackage = z_ext_record_oid(
3437 assoc->encode, yaz_oid_recsyn_extended,
3438 (const char *) esrequest.taskPackage, -1);
3440 yaz_log(YLOG_DEBUG,"Send the result apdu");
3444 int bend_assoc_is_alive(bend_association assoc)
3446 if (assoc->state == ASSOC_DEAD)
3447 return 0; /* already marked as dead. Don't check I/O chan anymore */
3449 return iochan_is_alive(assoc->client_chan);
3456 * c-file-style: "Stroustrup"
3457 * indent-tabs-mode: nil
3459 * vim: shiftwidth=4 tabstop=8 expandtab