/* This file is part of the YAZ toolkit. * Copyright (C) Index Data * See the file LICENSE for details. */ /** * \file seshigh.c * \brief Implements GFS session logic. * * Frontend server logic. * * This code receives incoming APDUs, and handles client requests by means * of the backend API. * * Some of the code is getting quite involved, compared to simpler servers - * primarily because it is asynchronous both in the communication with * the user and the backend. We think the complexity will pay off in * the form of greater flexibility when more asynchronous facilities * are implemented. * * Memory management has become somewhat involved. In the simple case, where * only one PDU is pending at a time, it will simply reuse the same memory, * once it has found its working size. When we enable multiple concurrent * operations, perhaps even with multiple parallel calls to the backend, it * will maintain a pool of buffers for encoding and decoding, trying to * minimize memory allocation/deallocation during normal operation. * */ #if HAVE_CONFIG_H #include #endif #include #include #include #include #if HAVE_SYS_TYPES_H #include #endif #if HAVE_SYS_STAT_H #include #endif #ifdef WIN32 #include #define S_ISREG(x) (x & _S_IFREG) #include #endif #if HAVE_UNISTD_H #include #endif #if YAZ_HAVE_XML2 #include #include #endif #include #include #include #include "eventl.h" #include "session.h" #include "mime.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void process_gdu_request(association *assoc, request *req); static int process_z_request(association *assoc, request *req, char **msg); static int process_gdu_response(association *assoc, request *req, Z_GDU *res); static int process_z_response(association *assoc, request *req, Z_APDU *res); static Z_APDU *process_initRequest(association *assoc, request *reqb); static Z_External *init_diagnostics(ODR odr, int errcode, const char *errstring); static Z_APDU *process_searchRequest(association *assoc, request *reqb); static Z_APDU *response_searchRequest(association *assoc, request *reqb, bend_search_rr *bsrr); static Z_APDU *process_presentRequest(association *assoc, request *reqb); static Z_APDU *process_scanRequest(association *assoc, request *reqb); static Z_APDU *process_sortRequest(association *assoc, request *reqb); static void process_close(association *assoc, request *reqb); static Z_APDU *process_deleteRequest(association *assoc, request *reqb); static Z_APDU *process_segmentRequest(association *assoc, request *reqb); static Z_APDU *process_ESRequest(association *assoc, request *reqb); /* dynamic logging levels */ static int logbits_set = 0; static int log_session = 0; /* one-line logs for session */ static int log_sessiondetail = 0; /* more detailed stuff */ static int log_request = 0; /* one-line logs for requests */ static int log_requestdetail = 0; /* more detailed stuff */ /** get_logbits sets global loglevel bits */ static void get_logbits(void) { /* needs to be called after parsing cmd-line args that can set loglevels!*/ if (!logbits_set) { logbits_set = 1; log_session = yaz_log_module_level("session"); log_sessiondetail = yaz_log_module_level("sessiondetail"); log_request = yaz_log_module_level("request"); log_requestdetail = yaz_log_module_level("requestdetail"); } } static void wr_diag(WRBUF w, int error, const char *addinfo) { wrbuf_printf(w, "ERROR %d+", error); wrbuf_puts_replace_char(w, diagbib1_str(error), ' ', '_'); if (addinfo) { wrbuf_puts(w, "+"); wrbuf_puts_replace_char(w, addinfo, ' ', '_'); } wrbuf_puts(w, " "); } static int odr_int_to_int(Odr_int v) { if (v >= INT_MAX) return INT_MAX; else if (v <= INT_MIN) return INT_MIN; else return (int) v; } /* * Create and initialize a new association-handle. * channel : iochannel for the current line. * link : communications channel. * Returns: 0 or a new association handle. */ association *create_association(IOCHAN channel, COMSTACK link, const char *apdufile) { association *anew; if (!logbits_set) get_logbits(); if (!(anew = (association *)xmalloc(sizeof(*anew)))) return 0; anew->init = 0; anew->version = 0; anew->last_control = 0; anew->client_chan = channel; anew->client_link = link; anew->cs_get_mask = 0; anew->cs_put_mask = 0; anew->cs_accept_mask = 0; if (!(anew->decode = odr_createmem(ODR_DECODE)) || !(anew->encode = odr_createmem(ODR_ENCODE))) return 0; if (apdufile && *apdufile) { FILE *f; if (!(anew->print = odr_createmem(ODR_PRINT))) return 0; if (*apdufile == '@') { odr_setprint(anew->print, yaz_log_file()); } else if (*apdufile != '-') { char filename[256]; sprintf(filename, "%.200s.%ld", apdufile, (long)getpid()); if (!(f = fopen(filename, "w"))) { yaz_log(YLOG_WARN|YLOG_ERRNO, "%s", filename); return 0; } setvbuf(f, 0, _IONBF, 0); odr_setprint(anew->print, f); } } else anew->print = 0; anew->input_buffer = 0; anew->input_buffer_len = 0; anew->backend = 0; anew->state = ASSOC_NEW; request_initq(&anew->incoming); request_initq(&anew->outgoing); anew->proto = cs_getproto(link); anew->server = 0; return anew; } /* * Free association and release resources. */ void destroy_association(association *h) { statserv_options_block *cb = statserv_getcontrol(); request *req; xfree(h->init); odr_destroy(h->decode); odr_destroy(h->encode); if (h->print) odr_destroy(h->print); if (h->input_buffer) xfree(h->input_buffer); if (h->backend) (*cb->bend_close)(h->backend); while ((req = request_deq(&h->incoming))) request_release(req); while ((req = request_deq(&h->outgoing))) request_release(req); request_delq(&h->incoming); request_delq(&h->outgoing); xfree(h); xmalloc_trav("session closed"); } static void do_close_req(association *a, int reason, char *message, request *req) { Z_APDU *apdu = zget_APDU(a->encode, Z_APDU_close); Z_Close *cls = apdu->u.close; /* Purge request queue */ while (request_deq(&a->incoming)); while (request_deq(&a->outgoing)); if (a->version >= 3) { yaz_log(log_requestdetail, "Sending Close PDU, reason=%d, message=%s", reason, message ? message : "none"); *cls->closeReason = reason; cls->diagnosticInformation = message; process_z_response(a, req, apdu); iochan_settimeout(a->client_chan, 20); } else { request_release(req); yaz_log(log_requestdetail, "v2 client. No Close PDU"); iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */ a->cs_put_mask = 0; } a->state = ASSOC_DEAD; } static void do_close(association *a, int reason, char *message) { request *req = request_get(&a->outgoing); do_close_req(a, reason, message, req); } int ir_read(IOCHAN h, int event) { association *assoc = (association *)iochan_getdata(h); COMSTACK conn = assoc->client_link; request *req; if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask)) { /* We aren't speaking to this fellow */ if (assoc->state == ASSOC_DEAD) { yaz_log(log_session, "Connection closed - end of session"); cs_close(conn); destroy_association(assoc); iochan_destroy(h); return 0; } assoc->cs_get_mask = EVENT_INPUT; do { int res = cs_get(conn, &assoc->input_buffer, &assoc->input_buffer_len); if (res < 0 && cs_errno(conn) == CSBUFSIZE) { yaz_log(log_session, "Connection error: %s res=%d", cs_errmsg(cs_errno(conn)), res); req = request_get(&assoc->incoming); /* get a new request */ do_close_req(assoc, Z_Close_protocolError, "Incoming package too large", req); return 0; } else if (res <= 0) { assoc->state = ASSOC_DEAD; yaz_log(log_session, "Connection closed by client"); return 0; } else if (res == 1) /* incomplete read - wait for more */ { if (conn->io_pending & CS_WANT_WRITE) assoc->cs_get_mask |= EVENT_OUTPUT; iochan_setflag(h, assoc->cs_get_mask); return 0; } /* we got a complete PDU. Let's decode it */ yaz_log(YLOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res, assoc->input_buffer[0] & 0xff, assoc->input_buffer[1] & 0xff, assoc->input_buffer[2] & 0xff); req = request_get(&assoc->incoming); /* get a new request */ odr_reset(assoc->decode); odr_setbuf(assoc->decode, assoc->input_buffer, res, 0); if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0)) { yaz_log(YLOG_WARN, "ODR error on incoming PDU: %s [element %s] " "[near byte %ld] ", odr_errmsg(odr_geterror(assoc->decode)), odr_getelement(assoc->decode), (long) odr_offset(assoc->decode)); if (assoc->decode->error != OHTTP) { yaz_log(YLOG_WARN, "PDU dump:"); odr_dumpBER(yaz_log_file(), assoc->input_buffer, res); request_release(req); do_close(assoc, Z_Close_protocolError, "Malformed package"); } else { Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400); assoc->state = ASSOC_DEAD; process_gdu_response(assoc, req, p); } return 0; } req->request_mem = odr_extract_mem(assoc->decode); if (assoc->print) { if (!z_GDU(assoc->print, &req->gdu_request, 0, 0)) yaz_log(YLOG_WARN, "ODR print error: %s", odr_errmsg(odr_geterror(assoc->print))); odr_reset(assoc->print); } request_enq(&assoc->incoming, req); } while (cs_more(conn)); } return 1; } /* * This is where PDUs from the client are read and the further * processing is initiated. Flow of control moves down through the * various process_* functions below, until the encoded result comes back up * to the output handler in here. * * h : the I/O channel that has an outstanding event. * event : the current outstanding event. */ void ir_session(IOCHAN h, int event) { int res; association *assoc = (association *)iochan_getdata(h); COMSTACK conn = assoc->client_link; request *req; assert(h && conn && assoc); if (event == EVENT_TIMEOUT) { if (assoc->state != ASSOC_UP) { yaz_log(log_session, "Timeout. Closing connection"); /* do we need to lod this at all */ cs_close(conn); destroy_association(assoc); iochan_destroy(h); } else { yaz_log(log_sessiondetail, "Timeout. Sending Z39.50 Close"); do_close(assoc, Z_Close_lackOfActivity, 0); } return; } if (event & assoc->cs_accept_mask) { if (!cs_accept(conn)) { yaz_log(YLOG_WARN, "accept failed"); destroy_association(assoc); iochan_destroy(h); return; } iochan_clearflag(h, EVENT_OUTPUT); if (conn->io_pending) { /* cs_accept didn't complete */ assoc->cs_accept_mask = ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) | ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0); iochan_setflag(h, assoc->cs_accept_mask); } else { /* cs_accept completed. Prepare for reading (cs_get) */ assoc->cs_accept_mask = 0; assoc->cs_get_mask = EVENT_INPUT; iochan_setflag(h, assoc->cs_get_mask); } return; } if (event & assoc->cs_get_mask) /* input */ { if (!ir_read(h, event)) return; req = request_head(&assoc->incoming); if (req->state == REQUEST_IDLE) { request_deq(&assoc->incoming); process_gdu_request(assoc, req); } } if (event & assoc->cs_put_mask) { request *req = request_head(&assoc->outgoing); assoc->cs_put_mask = 0; yaz_log(YLOG_DEBUG, "ir_session (output)"); req->state = REQUEST_PENDING; switch (res = cs_put(conn, req->response, req->len_response)) { case -1: yaz_log(log_sessiondetail, "Connection closed by client"); cs_close(conn); destroy_association(assoc); iochan_destroy(h); break; case 0: /* all sent - release the request structure */ yaz_log(YLOG_DEBUG, "Wrote PDU, %d bytes", req->len_response); #if 0 yaz_log(YLOG_DEBUG, "HTTP out:\n%.*s", req->len_response, req->response); #endif request_deq(&assoc->outgoing); request_release(req); if (!request_head(&assoc->outgoing)) { /* restore mask for cs_get operation ... */ iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT); iochan_setflag(h, assoc->cs_get_mask); if (assoc->state == ASSOC_DEAD) iochan_setevent(assoc->client_chan, EVENT_TIMEOUT); } else { assoc->cs_put_mask = EVENT_OUTPUT; } break; default: if (conn->io_pending & CS_WANT_WRITE) assoc->cs_put_mask |= EVENT_OUTPUT; if (conn->io_pending & CS_WANT_READ) assoc->cs_put_mask |= EVENT_INPUT; iochan_setflag(h, assoc->cs_put_mask); } } if (event & EVENT_EXCEPT) { yaz_log(YLOG_WARN, "ir_session (exception)"); cs_close(conn); destroy_association(assoc); iochan_destroy(h); } } static int process_z_request(association *assoc, request *req, char **msg); static void assoc_init_reset(association *assoc, const char *peer_name1) { const char *peer_name2 = cs_addrstr(assoc->client_link); xfree(assoc->init); assoc->init = (bend_initrequest *) xmalloc(sizeof(*assoc->init)); assoc->init->stream = assoc->encode; assoc->init->print = assoc->print; assoc->init->auth = 0; assoc->init->referenceId = 0; assoc->init->implementation_version = 0; assoc->init->implementation_id = 0; assoc->init->implementation_name = 0; assoc->init->query_charset = 0; assoc->init->records_in_same_charset = 0; assoc->init->bend_sort = NULL; assoc->init->bend_search = NULL; assoc->init->bend_present = NULL; assoc->init->bend_esrequest = NULL; assoc->init->bend_delete = NULL; assoc->init->bend_scan = NULL; assoc->init->bend_segment = NULL; assoc->init->bend_fetch = NULL; assoc->init->bend_explain = NULL; assoc->init->bend_srw_scan = NULL; assoc->init->bend_srw_update = NULL; assoc->init->named_result_sets = 0; assoc->init->charneg_request = NULL; assoc->init->charneg_response = NULL; assoc->init->decode = assoc->decode; assoc->init->peer_name = (char *) odr_malloc(assoc->encode, (peer_name1 ? strlen(peer_name1) : 0) + 4 + strlen(peer_name2)); strcpy(assoc->init->peer_name, ""); if (peer_name1) { strcat(assoc->init->peer_name, peer_name1); strcat(assoc->init->peer_name, ", "); } strcat(assoc->init->peer_name, peer_name2); yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name); } static int srw_bend_init(association *assoc, Z_HTTP_Header *headers, Z_SRW_diagnostic **d, int *num, Z_SRW_PDU *sr) { statserv_options_block *cb = statserv_getcontrol(); if (!assoc->init) { const char *encoding = "UTF-8"; Z_External *ce; bend_initresult *binitres; yaz_log(log_requestdetail, "srw_bend_init config=%s", cb->configname); assoc_init_reset(assoc, z_HTTP_header_lookup(headers, "X-Forwarded-For")); if (sr->username) { Z_IdAuthentication *auth = (Z_IdAuthentication *) odr_malloc(assoc->decode, sizeof(*auth)); size_t len; len = strlen(sr->username) + 1; if (sr->password) len += strlen(sr->password) + 2; yaz_log(log_requestdetail, "username=%s password-len=%ld", sr->username, (long) (sr->password ? strlen(sr->password) : 0)); auth->which = Z_IdAuthentication_open; auth->u.open = (char *) odr_malloc(assoc->decode, len); strcpy(auth->u.open, sr->username); if (sr->password && *sr->password) { strcat(auth->u.open, "/"); strcat(auth->u.open, sr->password); } assoc->init->auth = auth; } #if 1 ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1); assoc->init->charneg_request = ce->u.charNeg3; #endif assoc->backend = 0; if (!(binitres = (*cb->bend_init)(assoc->init))) { assoc->state = ASSOC_DEAD; yaz_add_srw_diagnostic(assoc->encode, d, num, YAZ_SRW_AUTHENTICATION_ERROR, 0); return 0; } assoc->backend = binitres->handle; assoc->init->auth = 0; if (binitres->errcode) { int srw_code = yaz_diag_bib1_to_srw(binitres->errcode); assoc->state = ASSOC_DEAD; yaz_add_srw_diagnostic(assoc->encode, d, num, srw_code, binitres->errstring); return 0; } return 1; } return 1; } static int retrieve_fetch(association *assoc, bend_fetch_rr *rr) { #if YAZ_HAVE_XML2 yaz_record_conv_t rc = 0; const char *match_schema = 0; Odr_oid *match_syntax = 0; if (assoc->server) { int r; const char *input_schema = yaz_get_esn(rr->comp); Odr_oid *input_syntax_raw = rr->request_format; const char *backend_schema = 0; Odr_oid *backend_syntax = 0; r = yaz_retrieval_request(assoc->server->retrieval, input_schema, input_syntax_raw, &match_schema, &match_syntax, &rc, &backend_schema, &backend_syntax); if (r == -1) /* error ? */ { const char *details = yaz_retrieval_get_error( assoc->server->retrieval); rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; if (details) rr->errstring = odr_strdup(rr->stream, details); return -1; } else if (r == 1 || r == 3) { const char *details = input_schema; rr->errcode = YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; if (details) rr->errstring = odr_strdup(rr->stream, details); return -1; } else if (r == 2) { rr->errcode = YAZ_BIB1_RECORD_SYNTAX_UNSUPP; if (input_syntax_raw) { char oidbuf[OID_STR_MAX]; oid_oid_to_dotstring(input_syntax_raw, oidbuf); rr->errstring = odr_strdup(rr->stream, oidbuf); } return -1; } if (backend_schema) { yaz_set_esn(&rr->comp, backend_schema, odr_getmem(rr->stream)); } if (backend_syntax) rr->request_format = backend_syntax; } (*assoc->init->bend_fetch)(assoc->backend, rr); if (rc && rr->record && rr->errcode == 0) { /* post conversion must take place .. */ WRBUF output_record = wrbuf_alloc(); int r = 1; const char *details = 0; if (rr->len > 0) { r = yaz_record_conv_record(rc, rr->record, rr->len, output_record); if (r) details = yaz_record_conv_get_error(rc); } else if (rr->len == -1 && rr->output_format && !oid_oidcmp(rr->output_format, yaz_oid_recsyn_opac)) { r = yaz_record_conv_opac_record( rc, (Z_OPACRecord *) rr->record, output_record); if (r) details = yaz_record_conv_get_error(rc); } if (r == 0 && match_syntax && !oid_oidcmp(match_syntax, yaz_oid_recsyn_opac)) { yaz_marc_t mt = yaz_marc_create(); Z_OPACRecord *opac = 0; if (yaz_xml_to_opac(mt, wrbuf_buf(output_record), wrbuf_len(output_record), &opac, 0 /* iconv */, rr->stream->mem, 0) && opac) { rr->len = -1; rr->record = (char *) opac; } else { details = "XML to OPAC conversion failed"; r = 1; } yaz_marc_destroy(mt); } else if (r == 0) { rr->len = wrbuf_len(output_record); rr->record = (char *) odr_malloc(rr->stream, rr->len); memcpy(rr->record, wrbuf_buf(output_record), rr->len); } if (r) { rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; rr->surrogate_flag = 1; if (details) rr->errstring = odr_strdup(rr->stream, details); } wrbuf_destroy(output_record); } if (match_syntax) rr->output_format = match_syntax; if (match_schema) rr->schema = odr_strdup(rr->stream, match_schema); #else (*assoc->init->bend_fetch)(assoc->backend, rr); #endif return 0; } static int srw_bend_fetch(association *assoc, int pos, Z_SRW_searchRetrieveRequest *srw_req, Z_SRW_record *record, const char **addinfo, int *last_in_set) { bend_fetch_rr rr; ODR o = assoc->encode; rr.setname = "default"; rr.number = pos; rr.referenceId = 0; rr.request_format = odr_oiddup(assoc->decode, yaz_oid_recsyn_xml); rr.comp = (Z_RecordComposition *) odr_malloc(assoc->decode, sizeof(*rr.comp)); rr.comp->which = Z_RecordComp_complex; rr.comp->u.complex = (Z_CompSpec *) odr_malloc(assoc->decode, sizeof(Z_CompSpec)); rr.comp->u.complex->selectAlternativeSyntax = (bool_t *) odr_malloc(assoc->encode, sizeof(bool_t)); *rr.comp->u.complex->selectAlternativeSyntax = 0; rr.comp->u.complex->num_dbSpecific = 0; rr.comp->u.complex->dbSpecific = 0; rr.comp->u.complex->num_recordSyntax = 0; rr.comp->u.complex->recordSyntax = 0; rr.comp->u.complex->generic = (Z_Specification *) odr_malloc(assoc->decode, sizeof(Z_Specification)); /* schema uri = recordSchema (or NULL if recordSchema is not given) */ rr.comp->u.complex->generic->which = Z_Schema_uri; rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema; /* ESN = recordSchema if recordSchema is present */ rr.comp->u.complex->generic->elementSpec = 0; if (srw_req->recordSchema) { rr.comp->u.complex->generic->elementSpec = (Z_ElementSpec *) odr_malloc(assoc->encode, sizeof(Z_ElementSpec)); rr.comp->u.complex->generic->elementSpec->which = Z_ElementSpec_elementSetName; rr.comp->u.complex->generic->elementSpec->u.elementSetName = srw_req->recordSchema; } rr.stream = assoc->encode; rr.print = assoc->print; rr.basename = 0; rr.len = 0; rr.record = 0; rr.last_in_set = 0; rr.errcode = 0; rr.errstring = 0; rr.surrogate_flag = 0; rr.schema = srw_req->recordSchema; if (!assoc->init->bend_fetch) return 1; retrieve_fetch(assoc, &rr); *last_in_set = rr.last_in_set; if (rr.errcode && rr.surrogate_flag) { int code = yaz_diag_bib1_to_srw(rr.errcode); yaz_mk_sru_surrogate(o, record, pos, code, rr.errstring); return 0; } else if (rr.len >= 0) { record->recordData_buf = rr.record; record->recordData_len = rr.len; record->recordPosition = odr_intdup(o, pos); record->recordSchema = odr_strdup_null( o, rr.schema ? rr.schema : srw_req->recordSchema); } if (rr.errcode) { *addinfo = rr.errstring; return rr.errcode; } return 0; } static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct, Z_Query *query_result, char **sortkeys_p) { /* have a CQL query and CQL to PQF transform .. */ CQL_parser cp = cql_parser_create(); int r; int srw_errcode = 0; const char *add = 0; WRBUF rpn_buf = wrbuf_alloc(); *sortkeys_p = 0; r = cql_parser_string(cp, cql); if (r) { srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR; } if (!r) { struct cql_node *cn = cql_parser_result(cp); /* Syntax OK */ r = cql_transform(ct, cn, wrbuf_vp_puts, rpn_buf); if (r) srw_errcode = cql_transform_error(ct, &add); else { char out[100]; int r = cql_sortby_to_sortkeys_buf(cn, out, sizeof(out)-1); if (r == 0) { if (*out) yaz_log(log_requestdetail, "srw_sortKeys '%s'", out); *sortkeys_p = odr_strdup(odr, out); } else { yaz_log(log_requestdetail, "failed to create srw_sortKeys"); srw_errcode = YAZ_SRW_UNSUPP_SORT_TYPE; } } } if (!r) { /* Syntax & transform OK. */ /* Convert PQF string to Z39.50 to RPN query struct */ YAZ_PQF_Parser pp = yaz_pqf_create(); Z_RPNQuery *rpnquery = yaz_pqf_parse(pp, odr, wrbuf_cstr(rpn_buf)); if (!rpnquery) { size_t off; const char *pqf_msg; int code = yaz_pqf_error(pp, &pqf_msg, &off); yaz_log(YLOG_WARN, "PQF Parser Error %s (code %d)", pqf_msg, code); srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR; } else { query_result->which = Z_Query_type_1; query_result->u.type_1 = rpnquery; } yaz_pqf_destroy(pp); } cql_parser_destroy(cp); wrbuf_destroy(rpn_buf); return srw_errcode; } static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct, Z_AttributesPlusTerm *result) { Z_Query query; Z_RPNQuery *rpn; char *sortkeys = 0; int srw_error = cql2pqf(odr, cql, ct, &query, &sortkeys); if (srw_error) return srw_error; if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101) return YAZ_SRW_QUERY_SYNTAX_ERROR; /* bad query type */ rpn = query.u.type_1; if (!rpn->RPNStructure) return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be structure */ if (rpn->RPNStructure->which != Z_RPNStructure_simple) return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be simple */ if (rpn->RPNStructure->u.simple->which != Z_Operand_APT) return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be be attributes + term */ memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm, sizeof(*result)); return 0; } static int ccl2pqf(ODR odr, const Odr_oct *ccl, CCL_bibset bibset, bend_search_rr *bsrr) { char *ccl0; struct ccl_rpn_node *node; int errcode, pos; ccl0 = odr_strdupn(odr, (char*) ccl->buf, ccl->len); if ((node = ccl_find_str(bibset, ccl0, &errcode, &pos)) == 0) { bsrr->errstring = (char*) ccl_err_msg(errcode); return YAZ_SRW_QUERY_SYNTAX_ERROR; /* Query syntax error */ } bsrr->query->which = Z_Query_type_1; bsrr->query->u.type_1 = ccl_rpn_query(odr, node); return 0; } static void srw_bend_search(association *assoc, Z_HTTP_Header *headers, Z_SRW_PDU *sr, Z_SRW_PDU *res, int *http_code) { Z_SRW_searchRetrieveResponse *srw_res = res->u.response; int srw_error = 0; Z_External *ext; Z_SRW_searchRetrieveRequest *srw_req = sr->u.request; *http_code = 200; yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest"); srw_bend_init(assoc, headers, &srw_res->diagnostics, &srw_res->num_diagnostics, sr); if (srw_res->num_diagnostics == 0 && assoc->init) { bend_search_rr rr; rr.setname = "default"; rr.replace_set = 1; rr.num_bases = 1; rr.basenames = &srw_req->database; rr.referenceId = 0; rr.srw_sortKeys = 0; rr.srw_setname = 0; rr.srw_setnameIdleTime = 0; rr.estimated_hit_count = 0; rr.partial_resultset = 0; rr.query = (Z_Query *) odr_malloc(assoc->decode, sizeof(*rr.query)); rr.query->u.type_1 = 0; rr.extra_args = sr->extra_args; rr.extra_response_data = 0; rr.present_number = srw_req->maximumRecords ? *srw_req->maximumRecords : 0; if (!srw_req->queryType || !strcmp(srw_req->queryType, "cql")) { if (assoc->server && assoc->server->cql_transform) { int srw_errcode = cql2pqf(assoc->encode, srw_req->query, assoc->server->cql_transform, rr.query, &rr.srw_sortKeys); if (srw_errcode) { yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, srw_errcode, 0); } } else { /* CQL query to backend. Wrap it - Z39.50 style */ ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext)); ext->direct_reference = odr_getoidbystr(assoc->decode, "1.2.840.10003.16.2"); ext->indirect_reference = 0; ext->descriptor = 0; ext->which = Z_External_CQL; ext->u.cql = srw_req->query; rr.query->which = Z_Query_type_104; rr.query->u.type_104 = ext; } } else if (!strcmp(srw_req->queryType, "pqf")) { Z_RPNQuery *RPNquery; YAZ_PQF_Parser pqf_parser; pqf_parser = yaz_pqf_create(); RPNquery = yaz_pqf_parse(pqf_parser, assoc->decode, srw_req->query); if (!RPNquery) { const char *pqf_msg; size_t off; int code = yaz_pqf_error(pqf_parser, &pqf_msg, &off); yaz_log(log_requestdetail, "Parse error %d %s near offset %ld", code, pqf_msg, (long) off); srw_error = YAZ_SRW_QUERY_SYNTAX_ERROR; } rr.query->which = Z_Query_type_1; rr.query->u.type_1 = RPNquery; yaz_pqf_destroy(pqf_parser); } else { yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRW_UNSUPP_QUERY_TYPE, 0); } if (rr.query->u.type_1) { rr.stream = assoc->encode; rr.decode = assoc->decode; rr.print = assoc->print; if (srw_req->sort.sortKeys) rr.srw_sortKeys = odr_strdup(assoc->encode, srw_req->sort.sortKeys); rr.association = assoc; rr.hits = 0; rr.errcode = 0; rr.errstring = 0; rr.search_info = 0; rr.search_input = 0; if (srw_req->facetList) yaz_oi_set_facetlist(&rr.search_input, assoc->encode, srw_req->facetList); yaz_log_zquery_level(log_requestdetail,rr.query); (assoc->init->bend_search)(assoc->backend, &rr); if (rr.errcode) { if (rr.errcode == YAZ_BIB1_DATABASE_UNAVAILABLE) { *http_code = 404; } else { srw_error = yaz_diag_bib1_to_srw(rr.errcode); yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, srw_error, rr.errstring); } } else { int number = srw_req->maximumRecords ? odr_int_to_int(*srw_req->maximumRecords) : 0; int start = srw_req->startRecord ? odr_int_to_int(*srw_req->startRecord) : 1; yaz_log(log_requestdetail, "Request to pack %d+%d out of " ODR_INT_PRINTF, start, number, rr.hits); srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits); if (rr.srw_setname) { srw_res->resultSetId = odr_strdup(assoc->encode, rr.srw_setname ); srw_res->resultSetIdleTime = odr_intdup(assoc->encode, *rr.srw_setnameIdleTime ); } srw_res->facetList = yaz_oi_get_facetlist(&rr.search_info); if (start > rr.hits || start < 1) { /* if hits<=0 and start=1 we don't return a diagnostic */ if (start != 1) yaz_add_srw_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0); } else if (number > 0) { int i; int ok = 1; if (start + number > rr.hits) number = odr_int_to_int(rr.hits) - start + 1; /* Call bend_present if defined */ if (assoc->init->bend_present) { bend_present_rr *bprr = (bend_present_rr*) odr_malloc(assoc->decode, sizeof(*bprr)); bprr->setname = "default"; bprr->start = start; bprr->number = number; if (srw_req->recordSchema) { bprr->comp = (Z_RecordComposition *) odr_malloc(assoc->decode, sizeof(*bprr->comp)); bprr->comp->which = Z_RecordComp_simple; bprr->comp->u.simple = (Z_ElementSetNames *) odr_malloc(assoc->decode, sizeof(Z_ElementSetNames)); bprr->comp->u.simple->which = Z_ElementSetNames_generic; bprr->comp->u.simple->u.generic = srw_req->recordSchema; } else { bprr->comp = 0; } bprr->stream = assoc->encode; bprr->referenceId = 0; bprr->print = assoc->print; bprr->association = assoc; bprr->errcode = 0; bprr->errstring = NULL; (*assoc->init->bend_present)(assoc->backend, bprr); if (bprr->errcode) { srw_error = yaz_diag_bib1_to_srw(bprr->errcode); yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, srw_error, bprr->errstring); ok = 0; } } if (ok) { int j = 0; int packing = Z_SRW_recordPacking_string; if (srw_req->recordPacking) { packing = yaz_srw_str_to_pack(srw_req->recordPacking); if (packing == -1) packing = Z_SRW_recordPacking_string; } srw_res->records = (Z_SRW_record *) odr_malloc(assoc->encode, number * sizeof(*srw_res->records)); srw_res->extra_records = (Z_SRW_extra_record **) odr_malloc(assoc->encode, number*sizeof(*srw_res->extra_records)); for (i = 0; irecords[j].recordPacking = packing; srw_res->records[j].recordData_buf = 0; srw_res->extra_records[j] = 0; yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start); errcode = srw_bend_fetch(assoc, i+start, srw_req, srw_res->records + j, &addinfo, &last_in_set); if (errcode) { yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, yaz_diag_bib1_to_srw(errcode), addinfo); break; } if (srw_res->records[j].recordData_buf) j++; if (last_in_set) break; } srw_res->num_records = j; if (!j) srw_res->records = 0; } } if (rr.extra_response_data) { res->extraResponseData_buf = rr.extra_response_data; res->extraResponseData_len = strlen(rr.extra_response_data); } if (strcmp(res->srw_version, "2.") > 0) { if (rr.estimated_hit_count) srw_res->resultCountPrecision = odr_strdup(assoc->encode, "estimate"); else if (rr.partial_resultset) srw_res->resultCountPrecision = odr_strdup(assoc->encode, "minimum"); else srw_res->resultCountPrecision = odr_strdup(assoc->encode, "exact"); } else if (rr.estimated_hit_count || rr.partial_resultset) { yaz_add_srw_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRW_RESULT_SET_CREATED_WITH_VALID_PARTIAL_RESULTS_AVAILABLE, 0); } } } } if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "SRWSearch %s ", srw_req->database); if (srw_res->num_diagnostics) wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri); else if (*http_code != 200) wrbuf_printf(wr, "ERROR info:http/%d", *http_code); else if (srw_res->numberOfRecords) { wrbuf_printf(wr, "OK " ODR_INT_PRINTF, (srw_res->numberOfRecords ? *srw_res->numberOfRecords : 0)); } wrbuf_printf(wr, " %s " ODR_INT_PRINTF "+%d", (srw_res->resultSetId ? srw_res->resultSetId : "-"), (srw_req->startRecord ? *srw_req->startRecord : 1), srw_res->num_records); yaz_log(log_request, "%s %s: %s", wrbuf_cstr(wr), srw_req->queryType, srw_req->query); wrbuf_destroy(wr); } } static char *srw_bend_explain_default(bend_explain_rr *rr) { #if YAZ_HAVE_XML2 xmlNodePtr ptr = (xmlNode *) rr->server_node_ptr; if (!ptr) return 0; for (ptr = ptr->children; ptr; ptr = ptr->next) { if (ptr->type != XML_ELEMENT_NODE) continue; if (!strcmp((const char *) ptr->name, "explain")) { int len; xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0"); xmlChar *buf_out; char *content; ptr = xmlCopyNode(ptr, 1); xmlDocSetRootElement(doc, ptr); xmlDocDumpMemory(doc, &buf_out, &len); content = (char*) odr_malloc(rr->stream, 1+len); memcpy(content, buf_out, len); content[len] = '\0'; xmlFree(buf_out); xmlFreeDoc(doc); rr->explain_buf = content; return 0; } } #endif return 0; } static void srw_bend_explain(association *assoc, Z_HTTP_Header *headers, Z_SRW_PDU *sr, Z_SRW_explainResponse *srw_res, int *http_code) { Z_SRW_explainRequest *srw_req = sr->u.explain_request; yaz_log(log_requestdetail, "Got SRW ExplainRequest"); srw_bend_init(assoc, headers, &srw_res->diagnostics, &srw_res->num_diagnostics, sr); if (!assoc->init && srw_res->num_diagnostics == 0) *http_code = 404; if (assoc->init) { bend_explain_rr rr; rr.stream = assoc->encode; rr.decode = assoc->decode; rr.print = assoc->print; rr.explain_buf = 0; rr.database = srw_req->database; if (assoc->server) rr.server_node_ptr = assoc->server->server_node_ptr; else rr.server_node_ptr = 0; rr.schema = "http://explain.z3950.org/dtd/2.0/"; if (assoc->init->bend_explain) (*assoc->init->bend_explain)(assoc->backend, &rr); else srw_bend_explain_default(&rr); if (rr.explain_buf) { int packing = Z_SRW_recordPacking_string; if (srw_req->recordPacking) { packing = yaz_srw_str_to_pack(srw_req->recordPacking); if (packing == -1) packing = Z_SRW_recordPacking_string; } srw_res->record.recordSchema = rr.schema; srw_res->record.recordPacking = packing; srw_res->record.recordData_buf = rr.explain_buf; srw_res->record.recordData_len = strlen(rr.explain_buf); srw_res->record.recordPosition = 0; *http_code = 200; } } } static void srw_bend_scan(association *assoc, Z_HTTP_Header *headers, Z_SRW_PDU *sr, Z_SRW_PDU *res, int *http_code) { Z_SRW_scanRequest *srw_req = sr->u.scan_request; Z_SRW_scanResponse *srw_res = res->u.scan_response; yaz_log(log_requestdetail, "Got SRW ScanRequest"); *http_code = 200; srw_bend_init(assoc, headers, &srw_res->diagnostics, &srw_res->num_diagnostics, sr); if (srw_res->num_diagnostics == 0 && assoc->init) { int step_size = 0; struct scan_entry *save_entries; bend_scan_rr *bsrr = (bend_scan_rr *) odr_malloc(assoc->encode, sizeof(*bsrr)); bsrr->num_bases = 1; bsrr->basenames = &srw_req->database; bsrr->num_entries = srw_req->maximumTerms ? odr_int_to_int(*srw_req->maximumTerms) : 10; bsrr->term_position = srw_req->responsePosition ? odr_int_to_int(*srw_req->responsePosition) : 1; bsrr->errcode = 0; bsrr->errstring = 0; bsrr->referenceId = 0; bsrr->stream = assoc->encode; bsrr->print = assoc->print; bsrr->step_size = &step_size; bsrr->entries = 0; bsrr->setname = 0; bsrr->extra_args = sr->extra_args; bsrr->extra_response_data = 0; if (bsrr->num_entries > 0) { int i; bsrr->entries = (struct scan_entry *) odr_malloc(assoc->decode, sizeof(*bsrr->entries) * bsrr->num_entries); for (i = 0; inum_entries; i++) { bsrr->entries[i].term = 0; bsrr->entries[i].occurrences = 0; bsrr->entries[i].errcode = 0; bsrr->entries[i].errstring = 0; bsrr->entries[i].display_term = 0; } } save_entries = bsrr->entries; /* save it so we can compare later */ if (srw_req->queryType && !strcmp(srw_req->queryType, "pqf") && assoc->init->bend_scan) { YAZ_PQF_Parser pqf_parser = yaz_pqf_create(); bsrr->term = yaz_pqf_scan(pqf_parser, assoc->decode, &bsrr->attributeset, srw_req->scanClause); yaz_pqf_destroy(pqf_parser); bsrr->scanClause = 0; ((int (*)(void *, bend_scan_rr *)) (*assoc->init->bend_scan))(assoc->backend, bsrr); } else if ((!srw_req->queryType || !strcmp(srw_req->queryType, "cql")) && assoc->init->bend_scan && assoc->server && assoc->server->cql_transform) { int srw_error; bsrr->scanClause = 0; bsrr->attributeset = 0; bsrr->term = (Z_AttributesPlusTerm *) odr_malloc(assoc->decode, sizeof(*bsrr->term)); srw_error = cql2pqf_scan(assoc->encode, srw_req->scanClause, assoc->server->cql_transform, bsrr->term); if (srw_error) yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, srw_error, 0); else { ((int (*)(void *, bend_scan_rr *)) (*assoc->init->bend_scan))(assoc->backend, bsrr); } } else if ((!srw_req->queryType || !strcmp(srw_req->queryType, "cql")) && assoc->init->bend_srw_scan) { bsrr->term = 0; bsrr->attributeset = 0; bsrr->scanClause = srw_req->scanClause; ((int (*)(void *, bend_scan_rr *)) (*assoc->init->bend_srw_scan))(assoc->backend, bsrr); } else { yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRW_UNSUPP_OPERATION, "scan"); } if (bsrr->extra_response_data) { res->extraResponseData_buf = bsrr->extra_response_data; res->extraResponseData_len = strlen(bsrr->extra_response_data); } if (bsrr->errcode) { int srw_error; if (bsrr->errcode == YAZ_BIB1_DATABASE_UNAVAILABLE) { *http_code = 404; return; } srw_error = yaz_diag_bib1_to_srw(bsrr->errcode); yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, srw_error, bsrr->errstring); } else if (srw_res->num_diagnostics == 0 && bsrr->num_entries) { int i; srw_res->terms = (Z_SRW_scanTerm*) odr_malloc(assoc->encode, sizeof(*srw_res->terms) * bsrr->num_entries); srw_res->num_terms = bsrr->num_entries; for (i = 0; inum_entries; i++) { Z_SRW_scanTerm *t = srw_res->terms + i; t->value = odr_strdup(assoc->encode, bsrr->entries[i].term); t->numberOfRecords = odr_intdup(assoc->encode, bsrr->entries[i].occurrences); t->displayTerm = 0; if (save_entries == bsrr->entries && bsrr->entries[i].display_term) { /* the entries was _not_ set by the handler. So it's safe to test for new member display_term. It is NULL'ed by us. */ t->displayTerm = odr_strdup(assoc->encode, bsrr->entries[i].display_term); } t->whereInList = 0; } } } if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "SRWScan %s ", srw_req->database); if (srw_res->num_diagnostics) wrbuf_printf(wr, "ERROR %s - ", srw_res->diagnostics[0].uri); else if (srw_res->num_terms) wrbuf_printf(wr, "OK %d - ", srw_res->num_terms); else wrbuf_printf(wr, "OK - - "); wrbuf_printf(wr, ODR_INT_PRINTF "+" ODR_INT_PRINTF " ", (srw_req->responsePosition ? *srw_req->responsePosition : 1), (srw_req->maximumTerms ? *srw_req->maximumTerms : 1)); /* there is no step size in SRU/W ??? */ wrbuf_printf(wr, "%s: %s ", srw_req->queryType, srw_req->scanClause); yaz_log(log_request, "%s ", wrbuf_cstr(wr) ); wrbuf_destroy(wr); } } static void srw_bend_update(association *assoc, Z_HTTP_Header *headers, Z_SRW_PDU *sr, Z_SRW_updateResponse *srw_res, int *http_code) { Z_SRW_updateRequest *srw_req = sr->u.update_request; yaz_log(log_session, "SRWUpdate action=%s", srw_req->operation); yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics ); srw_bend_init(assoc, headers, &srw_res->diagnostics, &srw_res->num_diagnostics, sr); if (!assoc->init && srw_res->num_diagnostics == 0) *http_code = 404; if (assoc->init) { bend_update_rr rr; Z_SRW_extra_record *extra = srw_req->extra_record; rr.stream = assoc->encode; rr.print = assoc->print; rr.num_bases = 1; rr.basenames = &srw_req->database; rr.operation = srw_req->operation; rr.operation_status = "failed"; rr.record_id = 0; rr.record_versions = 0; rr.num_versions = 0; rr.record_packing = "string"; rr.record_schema = 0; rr.record_data = 0; rr.extra_record_data = 0; rr.extra_request_data = 0; rr.extra_response_data = 0; rr.uri = 0; rr.message = 0; rr.details = 0; *http_code = 200; if (rr.operation == 0) { yaz_add_sru_update_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED, "action" ); return; } yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] ); yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation ); if (!strcmp( rr.operation, "delete")) { if (srw_req->record && !srw_req->record->recordSchema) { rr.record_schema = odr_strdup( assoc->encode, srw_req->record->recordSchema); } if (srw_req->record) { rr.record_data = odr_strdupn( assoc->encode, srw_req->record->recordData_buf, srw_req->record->recordData_len ); } if (extra && extra->extraRecordData_len) { rr.extra_record_data = odr_strdupn( assoc->encode, extra->extraRecordData_buf, extra->extraRecordData_len ); } if (srw_req->recordId) rr.record_id = srw_req->recordId; else if (extra && extra->recordIdentifier) rr.record_id = extra->recordIdentifier; } else if (!strcmp(rr.operation, "replace")) { if (srw_req->recordId) rr.record_id = srw_req->recordId; else if (extra && extra->recordIdentifier) rr.record_id = extra->recordIdentifier; else { yaz_add_sru_update_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED, "recordIdentifier"); } if (!srw_req->record) { yaz_add_sru_update_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED, "record"); } else { if (srw_req->record->recordSchema) rr.record_schema = odr_strdup( assoc->encode, srw_req->record->recordSchema); if (srw_req->record->recordData_len ) { rr.record_data = odr_strdupn(assoc->encode, srw_req->record->recordData_buf, srw_req->record->recordData_len ); } else { yaz_add_sru_update_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRU_UPDATE_MISSING_MANDATORY_ELEMENT_RECORD_REJECTED, "recordData" ); } } if (extra && extra->extraRecordData_len) { rr.extra_record_data = odr_strdupn( assoc->encode, extra->extraRecordData_buf, extra->extraRecordData_len ); } } else if (!strcmp(rr.operation, "insert")) { if (srw_req->recordId) rr.record_id = srw_req->recordId; else if (extra) rr.record_id = extra->recordIdentifier; if (srw_req->record) { if (srw_req->record->recordSchema) rr.record_schema = odr_strdup( assoc->encode, srw_req->record->recordSchema); if (srw_req->record->recordData_len) rr.record_data = odr_strdupn( assoc->encode, srw_req->record->recordData_buf, srw_req->record->recordData_len ); } if (extra && extra->extraRecordData_len) { rr.extra_record_data = odr_strdupn( assoc->encode, extra->extraRecordData_buf, extra->extraRecordData_len ); } } else yaz_add_sru_update_diagnostic(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRU_UPDATE_INVALID_ACTION, rr.operation ); if (srw_req->record) { const char *pack_str = yaz_srw_pack_to_str(srw_req->record->recordPacking); if (pack_str) rr.record_packing = odr_strdup(assoc->encode, pack_str); } if (srw_req->num_recordVersions) { rr.record_versions = srw_req->recordVersions; rr.num_versions = srw_req->num_recordVersions; } if (srw_req->extraRequestData_len) { rr.extra_request_data = odr_strdupn(assoc->encode, srw_req->extraRequestData_buf, srw_req->extraRequestData_len ); } if (srw_res->num_diagnostics == 0) { if ( assoc->init->bend_srw_update) (*assoc->init->bend_srw_update)(assoc->backend, &rr); else yaz_add_sru_update_diagnostic( assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, YAZ_SRU_UPDATE_UNSPECIFIED_DATABASE_ERROR, "No Update backend handler"); } if (rr.uri) yaz_add_srw_diagnostic_uri(assoc->encode, &srw_res->diagnostics, &srw_res->num_diagnostics, rr.uri, rr.message, rr.details); srw_res->recordId = rr.record_id; srw_res->operationStatus = rr.operation_status; srw_res->recordVersions = rr.record_versions; srw_res->num_recordVersions = rr.num_versions; if (srw_res->extraResponseData_len) { srw_res->extraResponseData_buf = rr.extra_response_data; srw_res->extraResponseData_len = strlen(rr.extra_response_data); } if (srw_res->num_diagnostics == 0 && rr.record_data) { srw_res->record = yaz_srw_get_record(assoc->encode); srw_res->record->recordSchema = rr.record_schema; if (rr.record_packing) { int pack = yaz_srw_str_to_pack(rr.record_packing); if (pack == -1) { pack = Z_SRW_recordPacking_string; yaz_log(YLOG_WARN, "Back packing %s from backend", rr.record_packing); } srw_res->record->recordPacking = pack; } srw_res->record->recordData_buf = rr.record_data; srw_res->record->recordData_len = strlen(rr.record_data); if (rr.extra_record_data) { Z_SRW_extra_record *ex = yaz_srw_get_extra_record(assoc->encode); srw_res->extra_record = ex; ex->extraRecordData_buf = rr.extra_record_data; ex->extraRecordData_len = strlen(rr.extra_record_data); } } } } /* check if path is OK (1); BAD (0) */ static int check_path(const char *path) { if (*path != '/') return 0; if (strstr(path, "..")) return 0; return 1; } static char *read_file(const char *fname, ODR o, size_t *sz) { char *buf; FILE *inf = fopen(fname, "rb"); if (!inf) return 0; fseek(inf, 0L, SEEK_END); *sz = ftell(inf); rewind(inf); buf = (char *) odr_malloc(o, *sz); if (fread(buf, 1, *sz, inf) != *sz) yaz_log(YLOG_WARN|YLOG_ERRNO, "short read %s", fname); fclose(inf); return buf; } static void process_http_request(association *assoc, request *req) { Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request; ODR o = assoc->encode; int r = 2; /* 2=NOT TAKEN, 1=TAKEN, 0=SOAP TAKEN */ Z_SRW_PDU *sr = 0; Z_SOAP *soap_package = 0; Z_GDU *p = 0; char *charset = 0; Z_HTTP_Response *hres = 0; int keepalive = 1; const char *stylesheet = 0; /* for now .. set later */ Z_SRW_diagnostic *diagnostic = 0; int num_diagnostic = 0; const char *host = z_HTTP_header_lookup(hreq->headers, "Host"); yaz_log(log_request, "%s %s HTTP/%s", hreq->method, hreq->path, hreq->version); if (!control_association(assoc, host, 0)) { p = z_get_HTTP_Response(o, 404); r = 1; } if (r == 2 && assoc->server && assoc->server->docpath && hreq->path[0] == '/' && /* check if path is a proper prefix of documentroot */ strncmp(hreq->path+1, assoc->server->docpath, strlen(assoc->server->docpath)) == 0) { if (!check_path(hreq->path)) { yaz_log(YLOG_LOG, "File %s access forbidden", hreq->path+1); p = z_get_HTTP_Response(o, 404); } else { size_t content_size = 0; char *content_buf = read_file(hreq->path+1, o, &content_size); if (!content_buf) { yaz_log(YLOG_LOG, "File %s not found", hreq->path+1); p = z_get_HTTP_Response(o, 404); } else { const char *ctype = 0; yaz_mime_types types = yaz_mime_types_create(); yaz_mime_types_add(types, "xsl", "application/xml"); yaz_mime_types_add(types, "xml", "application/xml"); yaz_mime_types_add(types, "css", "text/css"); yaz_mime_types_add(types, "html", "text/html"); yaz_mime_types_add(types, "htm", "text/html"); yaz_mime_types_add(types, "txt", "text/plain"); yaz_mime_types_add(types, "js", "application/x-javascript"); yaz_mime_types_add(types, "gif", "image/gif"); yaz_mime_types_add(types, "png", "image/png"); yaz_mime_types_add(types, "jpg", "image/jpeg"); yaz_mime_types_add(types, "jpeg", "image/jpeg"); ctype = yaz_mime_lookup_fname(types, hreq->path); if (!ctype) { yaz_log(YLOG_LOG, "No mime type for %s", hreq->path+1); p = z_get_HTTP_Response(o, 404); } else { p = z_get_HTTP_Response(o, 200); hres = p->u.HTTP_Response; hres->content_buf = content_buf; hres->content_len = content_size; z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype); } yaz_mime_types_destroy(types); } } r = 1; } if (r == 2) { r = yaz_srw_decode(hreq, &sr, &soap_package, assoc->decode, &charset); yaz_log(YLOG_DEBUG, "yaz_srw_decode returned %d", r); } if (r == 2) /* not taken */ { r = yaz_sru_decode(hreq, &sr, &soap_package, assoc->decode, &charset, &diagnostic, &num_diagnostic); yaz_log(YLOG_DEBUG, "yaz_sru_decode returned %d", r); } if (r == 0) /* decode SRW/SRU OK .. */ { int http_code = 200; if (sr->which == Z_SRW_searchRetrieve_request) { Z_SRW_PDU *res = yaz_srw_get_pdu_e(assoc->encode, Z_SRW_searchRetrieve_response, sr); stylesheet = sr->u.request->stylesheet; if (num_diagnostic) { res->u.response->diagnostics = diagnostic; res->u.response->num_diagnostics = num_diagnostic; } else { srw_bend_search(assoc, hreq->headers, sr, res, &http_code); } if (http_code == 200) soap_package->u.generic->p = res; } else if (sr->which == Z_SRW_explain_request) { Z_SRW_PDU *res = yaz_srw_get_pdu_e(o, Z_SRW_explain_response, sr); stylesheet = sr->u.explain_request->stylesheet; if (num_diagnostic) { res->u.explain_response->diagnostics = diagnostic; res->u.explain_response->num_diagnostics = num_diagnostic; } srw_bend_explain(assoc, hreq->headers, sr, res->u.explain_response, &http_code); if (http_code == 200) soap_package->u.generic->p = res; } else if (sr->which == Z_SRW_scan_request) { Z_SRW_PDU *res = yaz_srw_get_pdu_e(o, Z_SRW_scan_response, sr); stylesheet = sr->u.scan_request->stylesheet; if (num_diagnostic) { res->u.scan_response->diagnostics = diagnostic; res->u.scan_response->num_diagnostics = num_diagnostic; } srw_bend_scan(assoc, hreq->headers, sr, res, &http_code); if (http_code == 200) soap_package->u.generic->p = res; } else if (sr->which == Z_SRW_update_request) { Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_update_response, sr->srw_version); yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest"); if (num_diagnostic) { res->u.update_response->diagnostics = diagnostic; res->u.update_response->num_diagnostics = num_diagnostic; } yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics ); srw_bend_update(assoc, hreq->headers, sr, res->u.update_response, &http_code); if (http_code == 200) soap_package->u.generic->p = res; } else { yaz_log(log_request, "SOAP ERROR"); /* FIXME - what error, what query */ http_code = 500; z_soap_error(assoc->encode, soap_package, "SOAP-ENV:Client", "Bad method", 0); } if (http_code == 200 || http_code == 500) { static Z_SOAP_Handler soap_handlers[4] = { #if YAZ_HAVE_XML2 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec}, {YAZ_XMLNS_SRU_v1_0, 0, (Z_SOAP_fun) yaz_srw_codec}, {YAZ_XMLNS_UPDATE_v0_9, 0, (Z_SOAP_fun) yaz_ucp_codec}, #endif {0, 0, 0} }; char ctype[80]; p = z_get_HTTP_Response(o, 200); hres = p->u.HTTP_Response; if (!stylesheet && assoc->server) stylesheet = assoc->server->stylesheet; /* empty stylesheet means NO stylesheet */ if (stylesheet && *stylesheet == '\0') stylesheet = 0; z_soap_codec_enc_xsl(assoc->encode, &soap_package, &hres->content_buf, &hres->content_len, soap_handlers, charset, stylesheet); hres->code = http_code; strcpy(ctype, "text/xml"); z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype); } else p = z_get_HTTP_Response(o, http_code); } if (p == 0) p = z_get_HTTP_Response(o, 500); hres = p->u.HTTP_Response; if (!strcmp(hreq->version, "1.0")) { const char *v = z_HTTP_header_lookup(hreq->headers, "Connection"); if (v && !strcmp(v, "Keep-Alive")) keepalive = 1; else keepalive = 0; hres->version = "1.0"; } else { const char *v = z_HTTP_header_lookup(hreq->headers, "Connection"); if (v && !strcmp(v, "close")) keepalive = 0; else keepalive = 1; hres->version = "1.1"; } if (!keepalive || !assoc->last_control->keepalive) { z_HTTP_header_add(o, &hres->headers, "Connection", "close"); assoc->state = ASSOC_DEAD; assoc->cs_get_mask = 0; } else { int t; const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive"); if (alive && yaz_isdigit(*(const unsigned char *) alive)) t = atoi(alive); else t = 15; if (t < 0 || t > 3600) t = 3600; iochan_settimeout(assoc->client_chan,t); z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive"); } process_gdu_response(assoc, req, p); } static void process_gdu_request(association *assoc, request *req) { if (req->gdu_request->which == Z_GDU_Z3950) { char *msg = 0; req->apdu_request = req->gdu_request->u.z3950; if (process_z_request(assoc, req, &msg) < 0) do_close_req(assoc, Z_Close_systemProblem, msg, req); } else if (req->gdu_request->which == Z_GDU_HTTP_Request) process_http_request(assoc, req); else { do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req); } } /* * Initiate request processing. */ static int process_z_request(association *assoc, request *req, char **msg) { Z_APDU *res; int retval; *msg = "Unknown Error"; assert(req && req->state == REQUEST_IDLE); if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init) { *msg = "Missing InitRequest"; return -1; } switch (req->apdu_request->which) { case Z_APDU_initRequest: res = process_initRequest(assoc, req); break; case Z_APDU_searchRequest: res = process_searchRequest(assoc, req); break; case Z_APDU_presentRequest: res = process_presentRequest(assoc, req); break; case Z_APDU_scanRequest: if (assoc->init->bend_scan) res = process_scanRequest(assoc, req); else { *msg = "Cannot handle Scan APDU"; return -1; } break; case Z_APDU_extendedServicesRequest: if (assoc->init->bend_esrequest) res = process_ESRequest(assoc, req); else { *msg = "Cannot handle Extended Services APDU"; return -1; } break; case Z_APDU_sortRequest: if (assoc->init->bend_sort) res = process_sortRequest(assoc, req); else { *msg = "Cannot handle Sort APDU"; return -1; } break; case Z_APDU_close: process_close(assoc, req); return 0; case Z_APDU_deleteResultSetRequest: if (assoc->init->bend_delete) res = process_deleteRequest(assoc, req); else { *msg = "Cannot handle Delete APDU"; return -1; } break; case Z_APDU_segmentRequest: if (assoc->init->bend_segment) { res = process_segmentRequest(assoc, req); } else { *msg = "Cannot handle Segment APDU"; return -1; } break; case Z_APDU_triggerResourceControlRequest: return 0; default: *msg = "Bad APDU received"; return -1; } if (res) { yaz_log(YLOG_DEBUG, " result immediately available"); retval = process_z_response(assoc, req, res); } else { yaz_log(YLOG_DEBUG, " result unavailable"); retval = -1; } return retval; } /* * Encode response, and transfer the request structure to the outgoing queue. */ static int process_gdu_response(association *assoc, request *req, Z_GDU *res) { odr_setbuf(assoc->encode, req->response, req->size_response, 1); if (assoc->print) { if (!z_GDU(assoc->print, &res, 0, 0)) yaz_log(YLOG_WARN, "ODR print error: %s", odr_errmsg(odr_geterror(assoc->print))); odr_reset(assoc->print); } if (!z_GDU(assoc->encode, &res, 0, 0)) { yaz_log(YLOG_WARN, "ODR error when encoding PDU: %s [element %s]", odr_errmsg(odr_geterror(assoc->decode)), odr_getelement(assoc->decode)); return -1; } req->response = odr_getbuf(assoc->encode, &req->len_response, &req->size_response); odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */ odr_reset(assoc->encode); req->state = REQUEST_IDLE; request_enq(&assoc->outgoing, req); /* turn the work over to the ir_session handler */ iochan_setflag(assoc->client_chan, EVENT_OUTPUT); assoc->cs_put_mask = EVENT_OUTPUT; /* Is there more work to be done? give that to the input handler too */ for (;;) { req = request_head(&assoc->incoming); if (req && req->state == REQUEST_IDLE) { request_deq(&assoc->incoming); process_gdu_request(assoc, req); } else break; } return 0; } /* * Encode response, and transfer the request structure to the outgoing queue. */ static int process_z_response(association *assoc, request *req, Z_APDU *res) { Z_GDU *gres = (Z_GDU *) odr_malloc(assoc->encode, sizeof(*gres)); gres->which = Z_GDU_Z3950; gres->u.z3950 = res; return process_gdu_response(assoc, req, gres); } static char *get_vhost(Z_OtherInformation *otherInfo) { return yaz_oi_get_string_oid(&otherInfo, yaz_oid_userinfo_proxy, 1, 0); } /* * Handle init request. * At the moment, we don't check the options * anywhere else in the code - we just try not to do anything that would * break a naive client. We'll toss 'em into the association block when * we need them there. */ static Z_APDU *process_initRequest(association *assoc, request *reqb) { Z_InitRequest *req = reqb->apdu_request->u.initRequest; Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse); Z_InitResponse *resp = apdu->u.initResponse; bend_initresult *binitres; char options[140]; statserv_options_block *cb = 0; /* by default no control for backend */ if (control_association(assoc, get_vhost(req->otherInfo), 1)) cb = statserv_getcontrol(); /* got control block for backend */ if (cb && assoc->backend) (*cb->bend_close)(assoc->backend); yaz_log(log_requestdetail, "Got initRequest"); if (req->implementationId) yaz_log(log_requestdetail, "Id: %s", req->implementationId); if (req->implementationName) yaz_log(log_requestdetail, "Name: %s", req->implementationName); if (req->implementationVersion) yaz_log(log_requestdetail, "Version: %s", req->implementationVersion); assoc_init_reset(assoc, yaz_oi_get_string_oid(&req->otherInfo, yaz_oid_userinfo_client_ip, 1, 0)); assoc->init->auth = req->idAuthentication; assoc->init->referenceId = req->referenceId; if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)) { Z_CharSetandLanguageNegotiation *negotiation = yaz_get_charneg_record (req->otherInfo); if (negotiation && negotiation->which == Z_CharSetandLanguageNegotiation_proposal) assoc->init->charneg_request = negotiation; } /* by default named_result_sets is 0 .. Enable it if client asks for it. */ if (ODR_MASK_GET(req->options, Z_Options_namedResultSets)) assoc->init->named_result_sets = 1; assoc->backend = 0; if (cb) { if (req->implementationVersion) yaz_log(log_requestdetail, "Config: %s", cb->configname); iochan_settimeout(assoc->client_chan, cb->idle_timeout); /* we have a backend control block, so call that init function */ if (!(binitres = (*cb->bend_init)(assoc->init))) { yaz_log(YLOG_WARN, "Bad response from backend."); return 0; } assoc->backend = binitres->handle; } else { /* no backend. return error */ binitres = (bend_initresult *) odr_malloc(assoc->encode, sizeof(*binitres)); binitres->errstring = 0; binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR; iochan_settimeout(assoc->client_chan, 10); } if ((assoc->init->bend_sort)) yaz_log(YLOG_DEBUG, "Sort handler installed"); if ((assoc->init->bend_search)) yaz_log(YLOG_DEBUG, "Search handler installed"); if ((assoc->init->bend_present)) yaz_log(YLOG_DEBUG, "Present handler installed"); if ((assoc->init->bend_esrequest)) yaz_log(YLOG_DEBUG, "ESRequest handler installed"); if ((assoc->init->bend_delete)) yaz_log(YLOG_DEBUG, "Delete handler installed"); if ((assoc->init->bend_scan)) yaz_log(YLOG_DEBUG, "Scan handler installed"); if ((assoc->init->bend_segment)) yaz_log(YLOG_DEBUG, "Segment handler installed"); resp->referenceId = req->referenceId; *options = '\0'; /* let's tell the client what we can do */ if (ODR_MASK_GET(req->options, Z_Options_search)) { ODR_MASK_SET(resp->options, Z_Options_search); strcat(options, "srch"); } if (ODR_MASK_GET(req->options, Z_Options_present)) { ODR_MASK_SET(resp->options, Z_Options_present); strcat(options, " prst"); } if (ODR_MASK_GET(req->options, Z_Options_delSet) && assoc->init->bend_delete) { ODR_MASK_SET(resp->options, Z_Options_delSet); strcat(options, " del"); } if (ODR_MASK_GET(req->options, Z_Options_extendedServices) && assoc->init->bend_esrequest) { ODR_MASK_SET(resp->options, Z_Options_extendedServices); strcat(options, " extendedServices"); } if (ODR_MASK_GET(req->options, Z_Options_namedResultSets) && assoc->init->named_result_sets) { ODR_MASK_SET(resp->options, Z_Options_namedResultSets); strcat(options, " namedresults"); } if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan) { ODR_MASK_SET(resp->options, Z_Options_scan); strcat(options, " scan"); } if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations)) { ODR_MASK_SET(resp->options, Z_Options_concurrentOperations); strcat(options, " concurrop"); } if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort) { ODR_MASK_SET(resp->options, Z_Options_sort); strcat(options, " sort"); } if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)) { Z_OtherInformationUnit *p0; if (!assoc->init->charneg_response) { if (assoc->init->query_charset) { assoc->init->charneg_response = yaz_set_response_charneg( assoc->encode, assoc->init->query_charset, 0, assoc->init->records_in_same_charset); } else { yaz_log(YLOG_WARN, "default query_charset not defined by backend"); } } if (assoc->init->charneg_response && (p0=yaz_oi_update(&resp->otherInfo, assoc->encode, NULL, 0, 0))) { p0->which = Z_OtherInfo_externallyDefinedInfo; p0->information.externallyDefinedInfo = assoc->init->charneg_response; ODR_MASK_SET(resp->options, Z_Options_negotiationModel); strcat(options, " negotiation"); } } if (ODR_MASK_GET(req->options, Z_Options_triggerResourceCtrl)) ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl); if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1)) { ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1); assoc->version = 1; /* 1 & 2 are equivalent */ } if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2)) { ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2); assoc->version = 2; } if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3)) { ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3); assoc->version = 3; } yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options); if (*req->maximumRecordSize < assoc->maximumRecordSize) assoc->maximumRecordSize = odr_int_to_int(*req->maximumRecordSize); if (*req->preferredMessageSize < assoc->preferredMessageSize) assoc->preferredMessageSize = odr_int_to_int(*req->preferredMessageSize); resp->preferredMessageSize = odr_intdup(assoc->encode, assoc->preferredMessageSize); resp->maximumRecordSize = odr_intdup(assoc->encode, assoc->maximumRecordSize); resp->implementationId = odr_prepend(assoc->encode, assoc->init->implementation_id, resp->implementationId); resp->implementationVersion = odr_prepend(assoc->encode, assoc->init->implementation_version, resp->implementationVersion); resp->implementationName = odr_prepend(assoc->encode, assoc->init->implementation_name, odr_prepend(assoc->encode, "GFS", resp->implementationName)); if (binitres->errcode) { assoc->state = ASSOC_DEAD; resp->userInformationField = init_diagnostics(assoc->encode, binitres->errcode, binitres->errstring); *resp->result = 0; } else assoc->state = ASSOC_UP; if (log_request) { if (!req->idAuthentication) yaz_log(log_request, "Auth none"); else if (req->idAuthentication->which == Z_IdAuthentication_open) { const char *open = req->idAuthentication->u.open; const char *slash = strchr(open, '/'); int len; if (slash) len = slash - open; else len = strlen(open); yaz_log(log_request, "Auth open %.*s", len, open); } else if (req->idAuthentication->which == Z_IdAuthentication_idPass) { const char *user = req->idAuthentication->u.idPass->userId; const char *group = req->idAuthentication->u.idPass->groupId; yaz_log(log_request, "Auth idPass %s %s", user ? user : "-", group ? group : "-"); } else if (req->idAuthentication->which == Z_IdAuthentication_anonymous) { yaz_log(log_request, "Auth anonymous"); } else { yaz_log(log_request, "Auth other"); } } if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "Init "); if (binitres->errcode) wrbuf_printf(wr, "ERROR %d", binitres->errcode); else wrbuf_printf(wr, "OK -"); wrbuf_printf(wr, " ID:%s Name:%s Version:%s", (req->implementationId ? req->implementationId :"-"), (req->implementationName ? req->implementationName : "-"), (req->implementationVersion ? req->implementationVersion : "-") ); yaz_log(log_request, "%s", wrbuf_cstr(wr)); wrbuf_destroy(wr); } return apdu; } /* * Set the specified `errcode' and `errstring' into a UserInfo-1 * external to be returned to the client in accordance with Z35.90 * Implementor Agreement 5 (Returning diagnostics in an InitResponse): * http://lcweb.loc.gov/z3950/agency/agree/initdiag.html */ static Z_External *init_diagnostics(ODR odr, int error, const char *addinfo) { yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error), addinfo ? " -- " : "", addinfo ? addinfo : ""); return zget_init_diagnostics(odr, error, addinfo); } /* * nonsurrogate diagnostic record. */ static Z_Records *diagrec(association *assoc, int error, char *addinfo) { Z_Records *rec = (Z_Records *) odr_malloc(assoc->encode, sizeof(*rec)); yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error), addinfo ? " -- " : "", addinfo ? addinfo : ""); rec->which = Z_Records_NSD; rec->u.nonSurrogateDiagnostic = zget_DefaultDiagFormat(assoc->encode, error, addinfo); return rec; } /* * surrogate diagnostic. */ static Z_NamePlusRecord *surrogatediagrec(association *assoc, const char *dbname, int error, const char *addinfo) { yaz_log(log_requestdetail, "[%d] %s%s%s", error, diagbib1_str(error), addinfo ? " -- " : "", addinfo ? addinfo : ""); return zget_surrogateDiagRec(assoc->encode, dbname, error, addinfo); } static Z_Records *pack_records(association *a, char *setname, Odr_int start, Odr_int *num, Z_RecordComposition *comp, Odr_int *next, Odr_int *pres, Z_ReferenceId *referenceId, Odr_oid *oid, int *errcode) { int recno; Odr_int dumped_records = 0; int toget = odr_int_to_int(*num); Z_Records *records = (Z_Records *) odr_malloc(a->encode, sizeof(*records)); Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *) odr_malloc(a->encode, sizeof(*reclist)); records->which = Z_Records_DBOSD; records->u.databaseOrSurDiagnostics = reclist; reclist->num_records = 0; if (toget < 0) return diagrec(a, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, 0); else if (toget == 0) reclist->records = odr_nullval(); else reclist->records = (Z_NamePlusRecord **) odr_malloc(a->encode, sizeof(*reclist->records) * toget); *pres = Z_PresentStatus_success; *num = 0; *next = 0; yaz_log(log_requestdetail, "Request to pack " ODR_INT_PRINTF "+%d %s", start, toget, setname); yaz_log(log_requestdetail, "pms=%d, mrs=%d", a->preferredMessageSize, a->maximumRecordSize); for (recno = odr_int_to_int(start); reclist->num_records < toget; recno++) { bend_fetch_rr freq; Z_NamePlusRecord *thisrec; Odr_int this_length = 0; /* * we get the number of bytes allocated on the stream before any * allocation done by the backend - this should give us a reasonable * idea of the total size of the data so far. */ Odr_int total_length = odr_total(a->encode) - dumped_records; freq.errcode = 0; freq.errstring = 0; freq.basename = 0; freq.len = 0; freq.record = 0; freq.last_in_set = 0; freq.setname = setname; freq.surrogate_flag = 0; freq.number = recno; freq.comp = comp; freq.request_format = oid; freq.output_format = 0; freq.stream = a->encode; freq.print = a->print; freq.referenceId = referenceId; freq.schema = 0; retrieve_fetch(a, &freq); *next = freq.last_in_set ? 0 : recno + 1; if (freq.errcode) { if (!freq.surrogate_flag) /* non-surrogate diagnostic i.e. global */ { char s[20]; *pres = Z_PresentStatus_failure; /* for 'present request out of range', set addinfo to record position if not set */ if (freq.errcode == YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE && freq.errstring == 0) { sprintf(s, "%d", recno); freq.errstring = s; } if (errcode) *errcode = freq.errcode; return diagrec(a, freq.errcode, freq.errstring); } reclist->records[reclist->num_records] = surrogatediagrec(a, freq.basename, freq.errcode, freq.errstring); reclist->num_records++; continue; } if (freq.record == 0) /* no error and no record ? */ { *pres = Z_PresentStatus_partial_4; *next = 0; /* signal end-of-set and stop */ break; } if (freq.len >= 0) this_length = freq.len; else this_length = odr_total(a->encode) - total_length - dumped_records; yaz_log(log_requestdetail, " fetched record, len=" ODR_INT_PRINTF " total=" ODR_INT_PRINTF " dumped=" ODR_INT_PRINTF, this_length, total_length, dumped_records); if (a->preferredMessageSize > 0 && this_length + total_length > a->preferredMessageSize) { /* record is small enough, really */ if (this_length <= a->preferredMessageSize && recno > start) { yaz_log(log_requestdetail, " Dropped last normal-sized record"); *pres = Z_PresentStatus_partial_2; if (*next > 0) (*next)--; break; } /* record can only be fetched by itself */ if (this_length < a->maximumRecordSize) { yaz_log(log_requestdetail, " Record > prefmsgsz"); if (toget > 1) { yaz_log(YLOG_DEBUG, " Dropped it"); reclist->records[reclist->num_records] = surrogatediagrec( a, freq.basename, YAZ_BIB1_RECORD_EXCEEDS_PREFERRED_MESSAGE_SIZE, 0); reclist->num_records++; dumped_records += this_length; continue; } } else /* too big entirely */ { yaz_log(log_requestdetail, "Record > maxrcdsz " "this=" ODR_INT_PRINTF " max=%d", this_length, a->maximumRecordSize); reclist->records[reclist->num_records] = surrogatediagrec( a, freq.basename, YAZ_BIB1_RECORD_EXCEEDS_MAXIMUM_RECORD_SIZE, 0); reclist->num_records++; dumped_records += this_length; continue; } } if (!(thisrec = (Z_NamePlusRecord *) odr_malloc(a->encode, sizeof(*thisrec)))) return 0; thisrec->databaseName = odr_strdup_null(a->encode, freq.basename); thisrec->which = Z_NamePlusRecord_databaseRecord; if (!freq.output_format) { yaz_log(YLOG_WARN, "bend_fetch output_format not set"); return 0; } thisrec->u.databaseRecord = z_ext_record_oid( a->encode, freq.output_format, freq.record, freq.len); if (!thisrec->u.databaseRecord) return 0; reclist->records[reclist->num_records] = thisrec; reclist->num_records++; if (freq.last_in_set) break; } *num = reclist->num_records; return records; } static Z_APDU *process_searchRequest(association *assoc, request *reqb) { Z_SearchRequest *req = reqb->apdu_request->u.searchRequest; bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc(reqb->request_mem, sizeof(*bsrr)); yaz_log(log_requestdetail, "Got SearchRequest."); bsrr->association = assoc; bsrr->referenceId = req->referenceId; bsrr->srw_sortKeys = 0; bsrr->srw_setname = 0; bsrr->srw_setnameIdleTime = 0; bsrr->estimated_hit_count = 0; bsrr->partial_resultset = 0; bsrr->extra_args = 0; bsrr->extra_response_data = 0; yaz_log(log_requestdetail, "ResultSet '%s'", req->resultSetName); if (req->databaseNames) { int i; for (i = 0; i < req->num_databaseNames; i++) yaz_log(log_requestdetail, "Database '%s'", req->databaseNames[i]); } yaz_log_zquery_level(log_requestdetail,req->query); if (assoc->init->bend_search) { bsrr->setname = req->resultSetName; bsrr->replace_set = *req->replaceIndicator; bsrr->num_bases = req->num_databaseNames; bsrr->basenames = req->databaseNames; bsrr->query = req->query; bsrr->stream = assoc->encode; nmem_transfer(odr_getmem(bsrr->stream), reqb->request_mem); bsrr->decode = assoc->decode; bsrr->print = assoc->print; bsrr->hits = 0; bsrr->errcode = 0; bsrr->errstring = NULL; bsrr->search_info = NULL; bsrr->search_input = req->additionalSearchInfo; if (!bsrr->search_input) bsrr->search_input = req->otherInfo; bsrr->present_number = *req->mediumSetPresentNumber; if (assoc->server && assoc->server->client_query_charset && req->query->which == Z_Query_type_1) { yaz_iconv_t cd = yaz_iconv_open("UTF-8", assoc->server->client_query_charset); if (cd) { yaz_query_charset_convert_rpnquery(req->query->u.type_1, assoc->decode, cd); yaz_iconv_close(cd); } } if (assoc->server && assoc->server->cql_transform && req->query->which == Z_Query_type_104 && req->query->u.type_104->which == Z_External_CQL) { /* have a CQL query and a CQL to PQF transform .. */ int srw_errcode = cql2pqf(bsrr->stream, req->query->u.type_104->u.cql, assoc->server->cql_transform, bsrr->query, &bsrr->srw_sortKeys); if (srw_errcode) bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode); } if (assoc->server && assoc->server->ccl_transform && req->query->which == Z_Query_type_2) /*CCL*/ { /* have a CCL query and a CCL to PQF transform .. */ int srw_errcode = ccl2pqf(bsrr->stream, req->query->u.type_2, assoc->server->ccl_transform, bsrr); if (srw_errcode) bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode); } if (!bsrr->errcode) (assoc->init->bend_search)(assoc->backend, bsrr); } else { /* FIXME - make a diagnostic for it */ yaz_log(YLOG_WARN,"Search not supported ?!?!"); } return response_searchRequest(assoc, reqb, bsrr); } /* * Prepare a searchresponse based on the backend results. We probably want * to look at making the fetching of records nonblocking as well, but * so far, we'll keep things simple. * If bsrt is null, that means we're called in response to a communications * event, and we'll have to get the response for ourselves. */ static Z_APDU *response_searchRequest(association *assoc, request *reqb, bend_search_rr *bsrt) { Z_SearchRequest *req = reqb->apdu_request->u.searchRequest; Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu)); Z_SearchResponse *resp = (Z_SearchResponse *) odr_malloc(assoc->encode, sizeof(*resp)); Odr_int *nulint = odr_intdup(assoc->encode, 0); Odr_int *next = odr_intdup(assoc->encode, 0); Odr_int *none = odr_intdup(assoc->encode, Z_SearchResponse_none); Odr_int returnedrecs = 0; apdu->which = Z_APDU_searchResponse; apdu->u.searchResponse = resp; resp->referenceId = req->referenceId; resp->additionalSearchInfo = 0; resp->otherInfo = 0; if (!bsrt) { yaz_log(YLOG_FATAL, "Bad result from backend"); return 0; } else if (bsrt->errcode) { resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring); resp->resultCount = nulint; resp->numberOfRecordsReturned = nulint; resp->nextResultSetPosition = nulint; resp->searchStatus = odr_booldup(assoc->encode, 0); resp->resultSetStatus = none; resp->presentStatus = 0; } else { bool_t *sr = odr_booldup(assoc->encode, 1); Odr_int *toget = odr_intdup(assoc->encode, 0); Z_RecordComposition comp, *compp = 0; yaz_log(log_requestdetail, "resultCount: " ODR_INT_PRINTF, bsrt->hits); resp->records = 0; resp->resultCount = &bsrt->hits; comp.which = Z_RecordComp_simple; /* how many records does the user agent want, then? */ if (bsrt->hits < 0) *toget = 0; else if (bsrt->hits <= *req->smallSetUpperBound) { *toget = bsrt->hits; if ((comp.u.simple = req->smallSetElementSetNames)) compp = ∁ } else if (bsrt->hits < *req->largeSetLowerBound) { *toget = *req->mediumSetPresentNumber; if (*toget > bsrt->hits) *toget = bsrt->hits; if ((comp.u.simple = req->mediumSetElementSetNames)) compp = ∁ } else *toget = 0; if (*toget && !resp->records) { Odr_int *presst = odr_intdup(assoc->encode, 0); /* Call bend_present if defined */ if (assoc->init->bend_present) { bend_present_rr *bprr = (bend_present_rr *) nmem_malloc(reqb->request_mem, sizeof(*bprr)); bprr->setname = req->resultSetName; bprr->start = 1; bprr->number = odr_int_to_int(*toget); bprr->format = req->preferredRecordSyntax; bprr->comp = compp; bprr->referenceId = req->referenceId; bprr->stream = assoc->encode; bprr->print = assoc->print; bprr->association = assoc; bprr->errcode = 0; bprr->errstring = NULL; (*assoc->init->bend_present)(assoc->backend, bprr); if (bprr->errcode) { resp->records = diagrec(assoc, bprr->errcode, bprr->errstring); *resp->presentStatus = Z_PresentStatus_failure; } } if (!resp->records) resp->records = pack_records( assoc, req->resultSetName, 1, toget, compp, next, presst, req->referenceId, req->preferredRecordSyntax, NULL); if (!resp->records) return 0; resp->numberOfRecordsReturned = toget; returnedrecs = *toget; resp->presentStatus = presst; } else { if (*resp->resultCount) *next = 1; resp->numberOfRecordsReturned = nulint; resp->presentStatus = 0; } resp->nextResultSetPosition = next; resp->searchStatus = sr; resp->resultSetStatus = 0; if (bsrt->estimated_hit_count) { resp->resultSetStatus = odr_intdup(assoc->encode, Z_SearchResponse_estimate); } else if (bsrt->partial_resultset) { resp->resultSetStatus = odr_intdup(assoc->encode, Z_SearchResponse_subset); } } resp->additionalSearchInfo = bsrt->search_info; if (log_request) { int i; WRBUF wr = wrbuf_alloc(); for (i = 0 ; i < req->num_databaseNames; i++) { if (i) wrbuf_printf(wr, "+"); wrbuf_puts(wr, req->databaseNames[i]); } wrbuf_printf(wr, " "); if (bsrt->errcode) wrbuf_printf(wr, "ERROR %d", bsrt->errcode); else wrbuf_printf(wr, "OK " ODR_INT_PRINTF, bsrt->hits); wrbuf_printf(wr, " %s 1+" ODR_INT_PRINTF " ", req->resultSetName, returnedrecs); yaz_query_to_wrbuf(wr, req->query); yaz_log(log_request, "Search %s", wrbuf_cstr(wr)); wrbuf_destroy(wr); } return apdu; } /* * Maybe we got a little over-friendly when we designed bend_fetch to * get only one record at a time. Some backends can optimise multiple-record * fetches, and at any rate, there is some overhead involved in * all that selecting and hopping around. Problem is, of course, that the * frontend can't know ahead of time how many records it'll need to * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR * is downright lousy as a bulk data transfer protocol. * * To start with, we'll do the fetching of records from the backend * in one operation: To save some trips in and out of the event-handler, * and to simplify the interface to pack_records. At any rate, asynch * operation is more fun in operations that have an unpredictable execution * speed - which is normally more true for search than for present. */ static Z_APDU *process_presentRequest(association *assoc, request *reqb) { Z_PresentRequest *req = reqb->apdu_request->u.presentRequest; Z_APDU *apdu; Z_PresentResponse *resp; Odr_int *next; Odr_int *num; int errcode = 0; yaz_log(log_requestdetail, "Got PresentRequest."); resp = (Z_PresentResponse *)odr_malloc(assoc->encode, sizeof(*resp)); resp->records = 0; resp->presentStatus = odr_intdup(assoc->encode, 0); if (assoc->init->bend_present) { bend_present_rr *bprr = (bend_present_rr *) nmem_malloc(reqb->request_mem, sizeof(*bprr)); bprr->setname = req->resultSetId; bprr->start = odr_int_to_int(*req->resultSetStartPoint); bprr->number = odr_int_to_int(*req->numberOfRecordsRequested); bprr->format = req->preferredRecordSyntax; bprr->comp = req->recordComposition; bprr->referenceId = req->referenceId; bprr->stream = assoc->encode; bprr->print = assoc->print; bprr->association = assoc; bprr->errcode = 0; bprr->errstring = NULL; (*assoc->init->bend_present)(assoc->backend, bprr); if (bprr->errcode) { resp->records = diagrec(assoc, bprr->errcode, bprr->errstring); *resp->presentStatus = Z_PresentStatus_failure; errcode = bprr->errcode; } } apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu)); next = odr_intdup(assoc->encode, 0); num = odr_intdup(assoc->encode, 0); apdu->which = Z_APDU_presentResponse; apdu->u.presentResponse = resp; resp->referenceId = req->referenceId; resp->otherInfo = 0; if (!resp->records) { *num = *req->numberOfRecordsRequested; resp->records = pack_records(assoc, req->resultSetId, *req->resultSetStartPoint, num, req->recordComposition, next, resp->presentStatus, req->referenceId, req->preferredRecordSyntax, &errcode); } if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "Present "); if (*resp->presentStatus == Z_PresentStatus_failure) wrbuf_printf(wr, "ERROR %d ", errcode); else if (*resp->presentStatus == Z_PresentStatus_success) wrbuf_printf(wr, "OK - "); else wrbuf_printf(wr, "Partial " ODR_INT_PRINTF " - ", *resp->presentStatus); wrbuf_printf(wr, " %s " ODR_INT_PRINTF "+" ODR_INT_PRINTF " ", req->resultSetId, *req->resultSetStartPoint, *req->numberOfRecordsRequested); yaz_log(log_request, "%s", wrbuf_cstr(wr) ); wrbuf_destroy(wr); } if (!resp->records) return 0; resp->numberOfRecordsReturned = num; resp->nextResultSetPosition = next; return apdu; } /* * Scan was implemented rather in a hurry, and with support for only the basic * elements of the service in the backend API. Suggestions are welcome. */ static Z_APDU *process_scanRequest(association *assoc, request *reqb) { Z_ScanRequest *req = reqb->apdu_request->u.scanRequest; Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu)); Z_ScanResponse *res = (Z_ScanResponse *) odr_malloc(assoc->encode, sizeof(*res)); Odr_int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure); Odr_int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0); Z_ListEntries *ents = (Z_ListEntries *) odr_malloc(assoc->encode, sizeof(*ents)); Z_DiagRecs *diagrecs_p = NULL; bend_scan_rr *bsrr = (bend_scan_rr *) odr_malloc(assoc->encode, sizeof(*bsrr)); struct scan_entry *save_entries; int step_size = 0; yaz_log(log_requestdetail, "Got ScanRequest"); apdu->which = Z_APDU_scanResponse; apdu->u.scanResponse = res; res->referenceId = req->referenceId; /* if step is absent, set it to 0 */ if (req->stepSize) step_size = odr_int_to_int(*req->stepSize); res->stepSize = 0; res->scanStatus = scanStatus; res->numberOfEntriesReturned = numberOfEntriesReturned; res->positionOfTerm = 0; res->entries = ents; ents->num_entries = 0; ents->entries = NULL; ents->num_nonsurrogateDiagnostics = 0; ents->nonsurrogateDiagnostics = NULL; res->attributeSet = 0; res->otherInfo = 0; if (req->databaseNames) { int i; for (i = 0; i < req->num_databaseNames; i++) yaz_log(log_requestdetail, "Database '%s'", req->databaseNames[i]); } bsrr->scanClause = 0; bsrr->errcode = 0; bsrr->errstring = 0; bsrr->num_bases = req->num_databaseNames; bsrr->basenames = req->databaseNames; bsrr->num_entries = odr_int_to_int(*req->numberOfTermsRequested); bsrr->term = req->termListAndStartPoint; bsrr->referenceId = req->referenceId; bsrr->stream = assoc->encode; bsrr->print = assoc->print; bsrr->step_size = &step_size; bsrr->setname = yaz_oi_get_string_oid(&req->otherInfo, yaz_oid_userinfo_scan_set, 1, 0); bsrr->entries = 0; bsrr->extra_args = 0; bsrr->extra_response_data = 0; /* For YAZ 2.0 and earlier it was the backend handler that initialized entries (member display_term did not exist) YAZ 2.0 and later sets 'entries' and initialize all members including 'display_term'. If YAZ 2.0 or later sees that entries was modified - we assume that it is an old handler and that 'display_term' is _not_ set. */ if (bsrr->num_entries > 0) { int i; bsrr->entries = (struct scan_entry *) odr_malloc(assoc->decode, sizeof(*bsrr->entries) * bsrr->num_entries); for (i = 0; inum_entries; i++) { bsrr->entries[i].term = 0; bsrr->entries[i].occurrences = 0; bsrr->entries[i].errcode = 0; bsrr->entries[i].errstring = 0; bsrr->entries[i].display_term = 0; } } save_entries = bsrr->entries; /* save it so we can compare later */ bsrr->attributeset = req->attributeSet; log_scan_term_level(log_requestdetail, req->termListAndStartPoint, bsrr->attributeset); bsrr->term_position = req->preferredPositionInResponse ? odr_int_to_int(*req->preferredPositionInResponse) : 1; ((int (*)(void *, bend_scan_rr *)) (*assoc->init->bend_scan))(assoc->backend, bsrr); if (bsrr->errcode) diagrecs_p = zget_DiagRecs(assoc->encode, bsrr->errcode, bsrr->errstring); else { int i; Z_Entry **tab = (Z_Entry **) odr_malloc(assoc->encode, sizeof(*tab) * bsrr->num_entries); if (bsrr->status == BEND_SCAN_PARTIAL) *scanStatus = Z_Scan_partial_5; else *scanStatus = Z_Scan_success; res->stepSize = odr_intdup(assoc->encode, step_size); ents->entries = tab; ents->num_entries = bsrr->num_entries; res->numberOfEntriesReturned = odr_intdup(assoc->encode, ents->num_entries); res->positionOfTerm = odr_intdup(assoc->encode, bsrr->term_position); for (i = 0; i < bsrr->num_entries; i++) { Z_Entry *e; Z_TermInfo *t; tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e)); if (bsrr->entries[i].occurrences >= 0) { e->which = Z_Entry_termInfo; e->u.termInfo = t = (Z_TermInfo *) odr_malloc(assoc->encode, sizeof(*t)); t->suggestedAttributes = 0; t->displayTerm = 0; if (save_entries == bsrr->entries && bsrr->entries[i].display_term) { /* the entries was _not_ set by the handler. So it's safe to test for new member display_term. It is NULL'ed by us. */ t->displayTerm = odr_strdup(assoc->encode, bsrr->entries[i].display_term); } t->alternativeTerm = 0; t->byAttributes = 0; t->otherTermInfo = 0; t->globalOccurrences = &bsrr->entries[i].occurrences; t->term = (Z_Term *) odr_malloc(assoc->encode, sizeof(*t->term)); t->term->which = Z_Term_general; t->term->u.general = odr_create_Odr_oct(assoc->encode, bsrr->entries[i].term, strlen(bsrr->entries[i].term)); yaz_log(YLOG_DEBUG, " term #%d: '%s' (" ODR_INT_PRINTF ")", i, bsrr->entries[i].term, bsrr->entries[i].occurrences); } else { Z_DiagRecs *drecs = zget_DiagRecs(assoc->encode, bsrr->entries[i].errcode, bsrr->entries[i].errstring); assert(drecs->num_diagRecs == 1); e->which = Z_Entry_surrogateDiagnostic; assert(drecs->diagRecs[0]); e->u.surrogateDiagnostic = drecs->diagRecs[0]; } } } if (diagrecs_p) { ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs; ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs; } if (log_request) { int i; WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "Scan "); for (i = 0 ; i < req->num_databaseNames; i++) { if (i) wrbuf_printf(wr, "+"); wrbuf_puts(wr, req->databaseNames[i]); } wrbuf_printf(wr, " "); if (bsrr->errcode) wr_diag(wr, bsrr->errcode, bsrr->errstring); else wrbuf_printf(wr, "OK"); wrbuf_printf(wr, " " ODR_INT_PRINTF " - " ODR_INT_PRINTF "+" ODR_INT_PRINTF "+" ODR_INT_PRINTF, res->numberOfEntriesReturned ? *res->numberOfEntriesReturned : 0, (req->preferredPositionInResponse ? *req->preferredPositionInResponse : 1), *req->numberOfTermsRequested, (res->stepSize ? *res->stepSize : 1)); if (bsrr->setname) wrbuf_printf(wr, "+%s", bsrr->setname); wrbuf_printf(wr, " "); yaz_scan_to_wrbuf(wr, req->termListAndStartPoint, bsrr->attributeset); yaz_log(log_request, "%s", wrbuf_cstr(wr) ); wrbuf_destroy(wr); } return apdu; } static Z_APDU *process_sortRequest(association *assoc, request *reqb) { int i; Z_SortRequest *req = reqb->apdu_request->u.sortRequest; Z_SortResponse *res = (Z_SortResponse *) odr_malloc(assoc->encode, sizeof(*res)); bend_sort_rr *bsrr = (bend_sort_rr *) odr_malloc(assoc->encode, sizeof(*bsrr)); Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu)); yaz_log(log_requestdetail, "Got SortRequest."); bsrr->num_input_setnames = req->num_inputResultSetNames; for (i=0;inum_inputResultSetNames;i++) yaz_log(log_requestdetail, "Input resultset: '%s'", req->inputResultSetNames[i]); bsrr->input_setnames = req->inputResultSetNames; bsrr->referenceId = req->referenceId; bsrr->output_setname = req->sortedResultSetName; yaz_log(log_requestdetail, "Output resultset: '%s'", req->sortedResultSetName); bsrr->sort_sequence = req->sortSequence; /*FIXME - dump those sequences too */ bsrr->stream = assoc->encode; bsrr->print = assoc->print; bsrr->sort_status = Z_SortResponse_failure; bsrr->errcode = 0; bsrr->errstring = 0; (*assoc->init->bend_sort)(assoc->backend, bsrr); res->referenceId = bsrr->referenceId; res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status); res->resultSetStatus = 0; if (bsrr->errcode) { Z_DiagRecs *dr = zget_DiagRecs(assoc->encode, bsrr->errcode, bsrr->errstring); res->diagnostics = dr->diagRecs; res->num_diagnostics = dr->num_diagRecs; } else { res->num_diagnostics = 0; res->diagnostics = 0; } res->resultCount = 0; res->otherInfo = 0; apdu->which = Z_APDU_sortResponse; apdu->u.sortResponse = res; if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "Sort "); if (bsrr->errcode) wrbuf_printf(wr, " ERROR %d", bsrr->errcode); else wrbuf_printf(wr, "OK -"); wrbuf_printf(wr, " ("); for (i = 0; inum_inputResultSetNames; i++) { if (i) wrbuf_printf(wr, "+"); wrbuf_puts(wr, req->inputResultSetNames[i]); } wrbuf_printf(wr, ")->%s ",req->sortedResultSetName); yaz_log(log_request, "%s", wrbuf_cstr(wr) ); wrbuf_destroy(wr); } return apdu; } static Z_APDU *process_deleteRequest(association *assoc, request *reqb) { int i; Z_DeleteResultSetRequest *req = reqb->apdu_request->u.deleteResultSetRequest; Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *) odr_malloc(assoc->encode, sizeof(*res)); bend_delete_rr *bdrr = (bend_delete_rr *) odr_malloc(assoc->encode, sizeof(*bdrr)); Z_APDU *apdu = (Z_APDU *)odr_malloc(assoc->encode, sizeof(*apdu)); yaz_log(log_requestdetail, "Got DeleteRequest."); bdrr->num_setnames = req->num_resultSetList; bdrr->setnames = req->resultSetList; for (i = 0; inum_resultSetList; i++) yaz_log(log_requestdetail, "resultset: '%s'", req->resultSetList[i]); bdrr->stream = assoc->encode; bdrr->print = assoc->print; bdrr->function = odr_int_to_int(*req->deleteFunction); bdrr->referenceId = req->referenceId; bdrr->statuses = 0; if (bdrr->num_setnames > 0) { bdrr->statuses = (int*) odr_malloc(assoc->encode, sizeof(*bdrr->statuses) * bdrr->num_setnames); for (i = 0; i < bdrr->num_setnames; i++) bdrr->statuses[i] = 0; } (*assoc->init->bend_delete)(assoc->backend, bdrr); res->referenceId = req->referenceId; res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status); res->deleteListStatuses = 0; if (bdrr->num_setnames > 0) { int i; res->deleteListStatuses = (Z_ListStatuses *) odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses)); res->deleteListStatuses->num = bdrr->num_setnames; res->deleteListStatuses->elements = (Z_ListStatus **) odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses->elements) * bdrr->num_setnames); for (i = 0; inum_setnames; i++) { res->deleteListStatuses->elements[i] = (Z_ListStatus *) odr_malloc(assoc->encode, sizeof(**res->deleteListStatuses->elements)); res->deleteListStatuses->elements[i]->status = odr_intdup(assoc->encode, bdrr->statuses[i]); res->deleteListStatuses->elements[i]->id = odr_strdup(assoc->encode, bdrr->setnames[i]); } } res->numberNotDeleted = 0; res->bulkStatuses = 0; res->deleteMessage = 0; res->otherInfo = 0; apdu->which = Z_APDU_deleteResultSetResponse; apdu->u.deleteResultSetResponse = res; if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_printf(wr, "Delete "); if (bdrr->delete_status) wrbuf_printf(wr, "ERROR %d", bdrr->delete_status); else wrbuf_printf(wr, "OK -"); for (i = 0; inum_resultSetList; i++) wrbuf_printf(wr, " %s ", req->resultSetList[i]); yaz_log(log_request, "%s", wrbuf_cstr(wr) ); wrbuf_destroy(wr); } return apdu; } static void process_close(association *assoc, request *reqb) { Z_Close *req = reqb->apdu_request->u.close; static char *reasons[] = { "finished", "shutdown", "systemProblem", "costLimit", "resources", "securityViolation", "protocolError", "lackOfActivity", "peerAbort", "unspecified" }; yaz_log(log_requestdetail, "Got Close, reason %s, message %s", reasons[*req->closeReason], req->diagnosticInformation ? req->diagnosticInformation : "NULL"); if (assoc->version < 3) /* to make do_force respond with close */ assoc->version = 3; do_close_req(assoc, Z_Close_finished, "Association terminated by client", reqb); yaz_log(log_request,"Close OK"); } static Z_APDU *process_segmentRequest(association *assoc, request *reqb) { bend_segment_rr req; req.segment = reqb->apdu_request->u.segmentRequest; req.stream = assoc->encode; req.decode = assoc->decode; req.print = assoc->print; req.association = assoc; (*assoc->init->bend_segment)(assoc->backend, &req); return 0; } static Z_APDU *process_ESRequest(association *assoc, request *reqb) { bend_esrequest_rr esrequest; const char *ext_name = "unknown"; Z_ExtendedServicesRequest *req = reqb->apdu_request->u.extendedServicesRequest; Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse); Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse; esrequest.esr = reqb->apdu_request->u.extendedServicesRequest; esrequest.stream = assoc->encode; esrequest.decode = assoc->decode; esrequest.print = assoc->print; esrequest.errcode = 0; esrequest.errstring = NULL; esrequest.association = assoc; esrequest.taskPackage = 0; esrequest.referenceId = req->referenceId; if (esrequest.esr && esrequest.esr->taskSpecificParameters) { switch(esrequest.esr->taskSpecificParameters->which) { case Z_External_itemOrder: ext_name = "ItemOrder"; break; case Z_External_update: ext_name = "Update"; break; case Z_External_update0: ext_name = "Update0"; break; case Z_External_ESAdmin: ext_name = "Admin"; break; } } (*assoc->init->bend_esrequest)(assoc->backend, &esrequest); resp->referenceId = req->referenceId; if (esrequest.errcode == -1) { /* Backend service indicates request will be processed */ yaz_log(log_request, "Extended Service: %s (accepted)", ext_name); *resp->operationStatus = Z_ExtendedServicesResponse_accepted; } else if (esrequest.errcode == 0) { /* Backend service indicates request will be processed */ yaz_log(log_request, "Extended Service: %s (done)", ext_name); *resp->operationStatus = Z_ExtendedServicesResponse_done; } else { Z_DiagRecs *diagRecs = zget_DiagRecs(assoc->encode, esrequest.errcode, esrequest.errstring); /* Backend indicates error, request will not be processed */ yaz_log(log_request, "Extended Service: %s (failed)", ext_name); *resp->operationStatus = Z_ExtendedServicesResponse_failure; resp->num_diagnostics = diagRecs->num_diagRecs; resp->diagnostics = diagRecs->diagRecs; if (log_request) { WRBUF wr = wrbuf_alloc(); wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics); yaz_log(log_request, "EsRequest %s", wrbuf_cstr(wr) ); wrbuf_destroy(wr); } } /* Do something with the members of bend_extendedservice */ if (esrequest.taskPackage) { resp->taskPackage = z_ext_record_oid( assoc->encode, yaz_oid_recsyn_extended, (const char *) esrequest.taskPackage, -1); } yaz_log(YLOG_DEBUG,"Send the result apdu"); return apdu; } int bend_assoc_is_alive(bend_association assoc) { if (assoc->state == ASSOC_DEAD) return 0; /* already marked as dead. Don't check I/O chan anymore */ return iochan_is_alive(assoc->client_chan); } /* * Local variables: * c-basic-offset: 4 * c-file-style: "Stroustrup" * indent-tabs-mode: nil * End: * vim: shiftwidth=4 tabstop=8 expandtab */