/*
- * Copyright (c) 1995-2005, Index Data
+ * Copyright (C) 1995-2005, Index Data ApS
* See the file LICENSE for details.
*
- * $Id: seshigh.c,v 1.43 2005-01-11 12:07:55 adam Exp $
+ * $Id: seshigh.c,v 1.48 2005-03-01 20:37:01 adam Exp $
*/
/**
* \file seshigh.c
#include <stdlib.h>
#include <stdio.h>
+#include <assert.h>
+#include <ctype.h>
+
+#if HAVE_SYS_TYPES_H
#include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
#ifdef WIN32
#include <io.h>
#define S_ISREG(x) (x & _S_IFREG)
#include <process.h>
-#include <sys/stat.h>
-#else
-#include <sys/stat.h>
+#endif
+
+#if HAVE_UNISTD_H
#include <unistd.h>
#endif
-#include <assert.h>
-#include <ctype.h>
#include <yaz/yconfig.h>
#include <yaz/xmalloc.h>
int *fd);
static Z_APDU *process_segmentRequest (association *assoc, request *reqb);
-static FILE *apduf = 0; /* for use in static mode */
-static statserv_options_block *control_block = 0;
-
static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
/* dynamic logging levels */
{ /* 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_request=yaz_log_module_level("request");
- log_requestdetail=yaz_log_module_level("requestdetail");
+ logbits_set = 1;
+ log_session = yaz_log_module_level("session");
+ log_request = yaz_log_module_level("request");
+ log_requestdetail = yaz_log_module_level("requestdetail");
}
}
* link : communications channel.
* Returns: 0 or a new association handle.
*/
-association *create_association(IOCHAN channel, COMSTACK link)
+association *create_association(IOCHAN channel, COMSTACK link,
+ const char *apdufile)
{
association *anew;
if (!logbits_set)
get_logbits();
- if (!control_block)
- control_block = statserv_getcontrol();
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;
if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
!(anew->encode = odr_createmem(ODR_ENCODE)))
return 0;
- if (*control_block->apdufile)
+ if (apdufile && *apdufile)
{
- char filename[256];
FILE *f;
- strcpy(filename, control_block->apdufile);
if (!(anew->print = odr_createmem(ODR_PRINT)))
return 0;
- if (*control_block->apdufile == '@')
+ if (*apdufile == '@')
{
odr_setprint(anew->print, yaz_log_file());
}
- else if (*control_block->apdufile != '-')
+ else if (*apdufile != '-')
{
- strcpy(filename, control_block->apdufile);
- if (!control_block->dynamic)
- {
- if (!apduf)
- {
- if (!(apduf = fopen(filename, "w")))
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO, "can't open apdu dump %s", filename);
- return 0;
- }
- setvbuf(apduf, 0, _IONBF, 0);
- }
- f = apduf;
- }
- else
- {
- sprintf(filename + strlen(filename), ".%ld", (long)getpid());
- if (!(f = fopen(filename, "w")))
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO, "%s", filename);
- return 0;
- }
- setvbuf(f, 0, _IONBF, 0);
- }
+ 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);
}
}
request_initq(&anew->incoming);
request_initq(&anew->outgoing);
anew->proto = cs_getproto(link);
+ anew->cql_transform = 0;
return anew;
}
request_delq(&h->outgoing);
xfree(h);
xmalloc_trav("session closed");
- if (control_block && control_block->one_shot)
+ if (cb && cb->one_shot)
{
exit (0);
}
static int process_z_request(association *assoc, request *req, char **msg);
+
static void assoc_init_reset(association *assoc)
{
xfree (assoc->init);
assoc->init->decode = assoc->decode;
assoc->init->peer_name =
odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
+
+ yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name);
}
static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num)
{
- const char *encoding = "UTF-8";
- Z_External *ce;
- bend_initresult *binitres;
statserv_options_block *cb = statserv_getcontrol();
-
- assoc_init_reset(assoc);
+ if (!assoc->init)
+ {
+ const char *encoding = "UTF-8";
+ Z_External *ce;
+ bend_initresult *binitres;
- assoc->maximumRecordSize = 3000000;
- assoc->preferredMessageSize = 3000000;
+ yaz_log(YLOG_LOG, "srw_bend_init config=%s", cb->configname);
+ assoc_init_reset(assoc);
+
+ assoc->maximumRecordSize = 3000000;
+ assoc->preferredMessageSize = 3000000;
#if 1
- ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
- assoc->init->charneg_request = ce->u.charNeg3;
+ 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, 3, 0);
- return 0;
- }
- assoc->backend = binitres->handle;
- if (binitres->errcode)
- {
- assoc->state = ASSOC_DEAD;
- yaz_add_srw_diagnostic(assoc->encode, d, num, binitres->errcode,
- binitres->errstring);
- return 0;
+ assoc->backend = 0;
+ if (!(binitres = (*cb->bend_init)(assoc->init)))
+ {
+ assoc->state = ASSOC_DEAD;
+ yaz_add_srw_diagnostic(assoc->encode, d, num, 3, 0);
+ return 0;
+ }
+ assoc->backend = binitres->handle;
+ if (binitres->errcode)
+ {
+ assoc->state = ASSOC_DEAD;
+ yaz_add_srw_diagnostic(assoc->encode, d, num, binitres->errcode,
+ binitres->errstring);
+ return 0;
+ }
+ return 1;
}
return 1;
}
return rr.errcode;
}
+static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
+ Z_Query *query_result)
+{
+ /* 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;
+ char rpn_buf[512];
+
+ r = cql_parser_string(cp, cql);
+ if (r)
+ {
+ /* CQL syntax error */
+ srw_errcode = 10;
+ }
+ if (!r)
+ {
+ /* Syntax OK */
+ r = cql_transform_buf(ct,
+ cql_parser_result(cp),
+ rpn_buf, sizeof(rpn_buf)-1);
+ if (r)
+ srw_errcode = cql_transform_error(ct, &add);
+ }
+ 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, 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 = 10;
+ }
+ else
+ {
+ query_result->which = Z_Query_type_1;
+ query_result->u.type_1 = rpnquery;
+ }
+ yaz_pqf_destroy(pp);
+ }
+ cql_parser_destroy(cp);
+ 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;
+ int srw_error = cql2pqf(odr, cql, ct, &query);
+ if (srw_error)
+ return srw_error;
+ if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
+ return 10; /* bad query type */
+ rpn = query.u.type_1;
+ if (!rpn->RPNStructure)
+ return 10; /* must be structure */
+ if (rpn->RPNStructure->which != Z_RPNStructure_simple)
+ return 10; /* must be simple */
+ if (rpn->RPNStructure->u.simple->which != Z_Operand_APT)
+ return 10; /* must be attributes plus term node .. */
+ memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm,
+ sizeof(*result));
+ return 0;
+}
+
static void srw_bend_search(association *assoc, request *req,
Z_SRW_searchRetrieveRequest *srw_req,
Z_SRW_searchRetrieveResponse *srw_res,
*http_code = 200;
yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest");
- if (!assoc->init)
- srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+ srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
if (srw_req->sort_type != Z_SRW_sort_type_none)
yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
&srw_res->num_diagnostics, 80, 0);
rr.referenceId = 0;
rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
+ rr.query->u.type_1 = 0;
if (srw_req->query_type == Z_SRW_query_type_cql)
{
- 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.cql;
-
- rr.query->which = Z_Query_type_104;
- rr.query->u.type_104 = ext;
+ if (assoc->cql_transform)
+ {
+ int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
+ assoc->cql_transform, rr.query);
+ 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.cql;
+
+ rr.query->which = Z_Query_type_104;
+ rr.query->u.type_104 = ext;
+ }
}
else if (srw_req->query_type == Z_SRW_query_type_pqf)
{
}
else
{
- rr.query->u.type_1 = 0;
yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
&srw_res->num_diagnostics, 11, 0);
}
{
yaz_log(log_requestdetail, "Got SRW ExplainRequest");
*http_code = 404;
- if (!assoc->init)
- srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+ srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
if (assoc->init && assoc->init->bend_explain)
{
bend_explain_rr rr;
yaz_log(log_requestdetail, "Got SRW ScanRequest");
*http_code = 200;
- if (!assoc->init)
- srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+ srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
if (srw_res->num_diagnostics == 0 && assoc->init)
{
struct scan_entry *save_entries;
else if (srw_req->query_type == Z_SRW_query_type_cql
&& assoc->init->bend_srw_scan)
{
- bsrr->term = 0;
- bsrr->attributeset = VAL_NONE;
- bsrr->scanClause = srw_req->scanClause.cql;
- ((int (*)(void *, bend_scan_rr *))
- (*assoc->init->bend_srw_scan))(assoc->backend, bsrr);
+ if (assoc->cql_transform)
+ {
+ bsrr->scanClause = 0;
+ bsrr->attributeset = VAL_NONE;
+ bsrr->term = odr_malloc(assoc->decode, sizeof(*bsrr->term));
+ int srw_error = cql2pqf_scan(assoc->encode,
+ srw_req->scanClause.cql,
+ assoc->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
+ {
+ bsrr->term = 0;
+ bsrr->attributeset = VAL_NONE;
+ bsrr->scanClause = srw_req->scanClause.cql;
+ ((int (*)(void *, bend_scan_rr *))
+ (*assoc->init->bend_srw_scan))(assoc->backend, bsrr);
+ }
}
else
{
char *stylesheet = 0;
Z_SRW_diagnostic *diagnostic = 0;
int num_diagnostic = 0;
+ const char *host = z_HTTP_header_lookup(hreq->headers, "Host");
- if (!strcmp(hreq->path, "/test"))
+ if (!control_association(assoc, host, 0))
+ {
+ p = z_get_HTTP_Response(o, 404);
+ r = 1;
+ }
+ if (r == 2 && !strcmp(hreq->path, "/test"))
{
p = z_get_HTTP_Response(o, 200);
hres = p->u.HTTP_Response;
switch (req->apdu_request->which)
{
case Z_APDU_initRequest:
- iochan_settimeout(assoc->client_chan,
- statserv_getcontrol()->idle_timeout * 60);
res = process_initRequest(assoc, req); break;
case Z_APDU_searchRequest:
res = process_searchRequest(assoc, req, &fd); break;
yaz_log(YLOG_DEBUG, " establishing handler for result");
req->state = REQUEST_PENDING;
- if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
+ if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT, 0)))
abort();
iochan_setdata(chan, assoc);
retval = 0;
return process_gdu_response(assoc, req, gres);
}
+static char *get_vhost(Z_OtherInformation *otherInfo)
+{
+ return yaz_oi_get_string_oidval(&otherInfo, VAL_PROXY, 1, 0);
+}
/*
* Handle init request.
*/
static Z_APDU *process_initRequest(association *assoc, request *reqb)
{
- statserv_options_block *cb = statserv_getcontrol();
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 *version;
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 */
+
yaz_log(log_requestdetail, "Got initRequest");
if (req->implementationId)
- yaz_log(log_requestdetail, "Id: %s", req->implementationId);
+ yaz_log(log_requestdetail, "Id: %s",
+ req->implementationId);
if (req->implementationName)
- yaz_log(log_requestdetail, "Name: %s", req->implementationName);
+ yaz_log(log_requestdetail, "Name: %s",
+ req->implementationName);
if (req->implementationVersion)
- yaz_log(log_requestdetail, "Version: %s", req->implementationVersion);
-
+ yaz_log(log_requestdetail, "Version: %s",
+ req->implementationVersion);
+
assoc_init_reset(assoc);
assoc->init->auth = req->idAuthentication;
}
assoc->backend = 0;
- if (!(binitres = (*cb->bend_init)(assoc->init)))
+ if (cb)
{
- yaz_log(YLOG_WARN, "Bad response from backend.");
- return 0;
+ if (req->implementationVersion)
+ yaz_log(log_requestdetail, "Config: %s",
+ cb->configname);
+
+ iochan_settimeout(assoc->client_chan, cb->idle_timeout * 60);
+
+ /* 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 = odr_malloc(assoc->encode, sizeof(*binitres));
+ binitres->errstring = 0;
+ binitres->errcode = 1;
+ iochan_settimeout(assoc->client_chan, 10);
}
-
- assoc->backend = binitres->handle;
if ((assoc->init->bend_sort))
- yaz_log (YLOG_DEBUG, "Sort handler installed");
+ yaz_log (YLOG_DEBUG, "Sort handler installed");
if ((assoc->init->bend_search))
- yaz_log (YLOG_DEBUG, "Search handler installed");
+ yaz_log (YLOG_DEBUG, "Search handler installed");
if ((assoc->init->bend_present))
- yaz_log (YLOG_DEBUG, "Present handler installed");
+ yaz_log (YLOG_DEBUG, "Present handler installed");
if ((assoc->init->bend_esrequest))
- yaz_log (YLOG_DEBUG, "ESRequest handler installed");
+ yaz_log (YLOG_DEBUG, "ESRequest handler installed");
if ((assoc->init->bend_delete))
- yaz_log (YLOG_DEBUG, "Delete handler installed");
+ yaz_log (YLOG_DEBUG, "Delete handler installed");
if ((assoc->init->bend_scan))
- yaz_log (YLOG_DEBUG, "Scan handler installed");
+ yaz_log (YLOG_DEBUG, "Scan handler installed");
if ((assoc->init->bend_segment))
- yaz_log (YLOG_DEBUG, "Segment handler installed");
+ yaz_log (YLOG_DEBUG, "Segment handler installed");
resp->referenceId = req->referenceId;
*options = '\0';
yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
assoc->maximumRecordSize = *req->maximumRecordSize;
- if (assoc->maximumRecordSize > control_block->maxrecordsize)
- assoc->maximumRecordSize = control_block->maxrecordsize;
+
+ if (cb && assoc->maximumRecordSize > cb->maxrecordsize)
+ assoc->maximumRecordSize = cb->maxrecordsize;
assoc->preferredMessageSize = *req->preferredMessageSize;
if (assoc->preferredMessageSize > assoc->maximumRecordSize)
assoc->preferredMessageSize = assoc->maximumRecordSize;
assoc->init->implementation_name,
odr_prepend(assoc->encode, "GFS", resp->implementationName));
- version = odr_strdup(assoc->encode, "$Revision: 1.43 $");
+ version = odr_strdup(assoc->encode, "$Revision: 1.48 $");
if (strlen(version) > 10) /* check for unexpanded CVS strings */
version[strlen(version)-2] = '\0';
resp->implementationVersion = odr_prepend(assoc->encode,
nmem_transfer(bsrr->stream->mem, reqb->request_mem);
bsrr->decode = assoc->decode;
bsrr->print = assoc->print;
- bsrr->errcode = 0;
bsrr->hits = 0;
+ bsrr->errcode = 0;
bsrr->errstring = NULL;
bsrr->search_info = NULL;
- (assoc->init->bend_search)(assoc->backend, bsrr);
+
+ if (assoc->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->cql_transform, bsrr->query);
+ if (srw_errcode)
+ bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
+ }
+ if (!bsrr->errcode)
+ (assoc->init->bend_search)(assoc->backend, bsrr);
if (!bsrr->request) /* backend not ready with the search response */
return 0; /* should not be used any more */
}
if (log_request)
{
WRBUF wr = wrbuf_alloc();
- if (*res->scanStatus == Z_Scan_success)
- wrbuf_printf(wr, "OK ");
- else
+ if (bsrr->errcode)
wr_diag(wr, bsrr->errcode, bsrr->errstring);
+ else if (*res->scanStatus == Z_Scan_success)
+ wrbuf_printf(wr, "OK");
+ else
+ wrbuf_printf(wr, "Partial");
- wrbuf_printf(wr, "%d+%d %d ",
+ wrbuf_printf(wr, " %d+%d %d ",
*req->preferredPositionInResponse,
*req->numberOfTermsRequested,
(res->stepSize ? *res->stepSize : 0));
resp->diagnostics = diagRecs->diagRecs;
if (log_request)
{
- WRBUF wr=wrbuf_alloc();
+ WRBUF wr = wrbuf_alloc();
wrbuf_diags(wr, resp->num_diagnostics, resp->diagnostics);
yaz_log(log_request, "EsRequest %s", wrbuf_buf(wr) );
wrbuf_free(wr, 1);