/*
- * Copyright (c) 1998-2003, Index Data.
+ * Copyright (c) 1998-2004, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.71 2003-12-16 14:17:01 adam Exp $
+ * $Id: yaz-proxy.cpp,v 1.91 2004-01-15 23:44:58 adam Exp $
*/
#include <assert.h>
#include <yaz++/proxy.h>
#include <yaz/pquery.h>
+#if HAVE_XSLT
+#include <libxslt/xsltutils.h>
+#include <libxslt/transform.h>
+#endif
+
static const char *apdu_name(Z_APDU *apdu)
{
switch (apdu->which)
m_invalid_session = 0;
m_config = 0;
m_marcxml_flag = 0;
+ m_stylesheet_schema = 0;
+ m_s2z_stylesheet = 0;
+ m_s2z_database = 0;
+ m_schema = 0;
m_initRequest_apdu = 0;
m_initRequest_mem = 0;
+ m_initRequest_options = 0;
+ m_initRequest_version = 0;
m_apdu_invalid_session = 0;
m_mem_invalid_session = 0;
- m_s2z_odr = 0;
+ m_s2z_odr_init = 0;
+ m_s2z_odr_search = 0;
m_s2z_init_apdu = 0;
m_s2z_search_apdu = 0;
m_s2z_present_apdu = 0;
m_http_version = 0;
m_soap_ns = 0;
m_s2z_packing = Z_SRW_recordPacking_string;
+ m_time_tv.tv_sec = 0;
+ m_time_tv.tv_usec = 0;
}
Yaz_Proxy::~Yaz_Proxy()
xfree (m_default_target);
xfree (m_proxy_authentication);
xfree (m_optimize);
- if (m_s2z_odr)
- odr_destroy(m_s2z_odr);
+ xfree (m_stylesheet_schema);
+ xfree (m_schema);
+ if (m_s2z_odr_init)
+ odr_destroy(m_s2z_odr_init);
+ if (m_s2z_odr_search)
+ odr_destroy(m_s2z_odr_search);
delete m_config;
}
{
assert (m_parent);
Yaz_Proxy *parent = m_parent;
- Z_OtherInformation **oi;
Yaz_ProxyClient *c = m_client;
if (!m_proxyTarget)
timeout(m_client_idletime);
}
if (cql2rpn_fname)
- {
- yaz_log(LOG_LOG, "set_pqf_file %s", cql2rpn_fname);
m_cql2rpn.set_pqf_file(cql2rpn_fname);
- }
if (!url[0])
{
yaz_log(LOG_LOG, "%sNo default target", m_session_str);
{
if (apdu->which != Z_APDU_initRequest)
{
- yaz_log (LOG_LOG, "no first INIT!");
+ yaz_log (LOG_LOG, "%sno init request as first PDU", m_session_str);
return 0;
}
Z_InitRequest *initRequest = apdu->u.initRequest;
odr_strdup (odr_encode(), m_proxy_authentication);
}
}
-
// go through list of clients - and find the lowest/oldest one.
Yaz_ProxyClient *c_min = 0;
int min_seq = -1;
}
}
+void Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p)
+{
+ if (!m_stylesheet_schema)
+ return;
+ xsltStylesheetPtr xsp;
+
+ xsp = xsltParseStylesheetFile((const xmlChar *) m_stylesheet_schema);
+
+ int i;
+ for (i = 0; i < p->num_records; i++)
+ {
+ Z_NamePlusRecord *npr = p->records[i];
+ if (npr->which == Z_NamePlusRecord_databaseRecord)
+ {
+ Z_External *r = npr->u.databaseRecord;
+ if (r->which == Z_External_octet)
+ {
+ xmlDocPtr res, doc = xmlParseMemory(
+ (char*) r->u.octet_aligned->buf,
+ r->u.octet_aligned->len);
+
+ res = xsltApplyStylesheet(xsp, doc, 0);
+
+ xmlChar *out_buf;
+ int out_len;
+ xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
+
+ p->records[i]->u.databaseRecord =
+ z_ext_record(odr_encode(), VAL_TEXT_XML,
+ (char*) out_buf, out_len);
+ xmlFree(out_buf);
+ xmlFreeDoc(doc);
+ xmlFreeDoc(res);
+ }
+ }
+ }
+ xsltFreeStylesheet(xsp);
+}
+
void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p)
{
int i;
yaz_marc_destroy(mt);
}
+void Yaz_Proxy::logtime()
+{
+ if (m_time_tv.tv_sec)
+ {
+ struct timeval tv;
+ gettimeofday(&tv, 0);
+ long diff = (tv.tv_sec - m_time_tv.tv_sec)*1000000 +
+ (tv.tv_usec - m_time_tv.tv_usec);
+ if (diff >= 0)
+ yaz_log(LOG_LOG, "%sElapsed %ld.%03ld", m_session_str,
+ diff/1000000, (diff/1000)%1000);
+ }
+ m_time_tv.tv_sec = 0;
+ m_time_tv.tv_usec = 0;
+}
+
int Yaz_Proxy::send_http_response(int code)
{
ODR o = odr_encode();
- const char *ctype = "text/xml";
Z_GDU *gdu = z_get_HTTP_Response(o, code);
Z_HTTP_Response *hres = gdu->u.HTTP_Response;
if (m_http_version)
hres->version = odr_strdup(o, m_http_version);
+ m_http_keepalive = 0;
+ if (m_log_mask & PROXY_LOG_REQ_CLIENT)
+ {
+ yaz_log (LOG_LOG, "%sSending %s to client", m_session_str,
+ gdu_name(gdu));
+ }
int len;
int r = send_GDU(gdu, &len);
- delete this;
+ logtime();
return r;
}
z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
static Z_SOAP_Handler soap_handlers[2] = {
-#if HAVE_XML2
- {"http://www.loc.gov/zing/srw/v1.0/", 0,
+#if HAVE_XSLT
+ {"http://www.loc.gov/zing/srw/", 0,
(Z_SOAP_fun) yaz_srw_codec},
#endif
{0, 0, 0}
soap_package->u.generic->ns = soap_handlers[0].ns;
soap_package->u.generic->p = (void *) srw_pdu;
soap_package->ns = m_soap_ns;
- int ret = z_soap_codec_enc(o, &soap_package,
- &hres->content_buf, &hres->content_len,
- soap_handlers, 0);
+ z_soap_codec_enc_xsl(o, &soap_package,
+ &hres->content_buf, &hres->content_len,
+ soap_handlers, 0, m_s2z_stylesheet);
+ if (m_log_mask & PROXY_LOG_REQ_CLIENT)
+ {
+ yaz_log (LOG_LOG, "%sSending %s to client", m_session_str,
+ gdu_name(gdu));
+ }
int len;
int r = send_GDU(gdu, &len);
- if (!m_http_keepalive)
- delete this;
+ logtime();
+ return r;
}
-int Yaz_Proxy::send_to_srw_client_error(int srw_error)
+int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
{
ODR o = odr_encode();
Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
srw_res->diagnostics = (Z_SRW_diagnostic *)
odr_malloc(o, sizeof(*srw_res->diagnostics));
srw_res->diagnostics[0].code = odr_intdup(o, srw_error);
- srw_res->diagnostics[0].details = 0;
+ srw_res->diagnostics[0].details = add ? odr_strdup(o, add) : 0;
return send_srw_response(srw_pdu);
}
return 0;
}
-int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records)
+int Yaz_Proxy::send_to_srw_client_ok(int hits, Z_Records *records, int start)
{
ODR o = odr_encode();
Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
srw_res->records[i].recordPacking = m_s2z_packing;
srw_res->records[i].recordData_buf = "67";
srw_res->records[i].recordData_len = 2;
- srw_res->records[i].recordPosition = 0;
+ srw_res->records[i].recordPosition = odr_intdup(o, i+start);
continue;
}
Z_External *r = npr->u.databaseRecord;
oident *ent = oid_getentbyoid(r->direct_reference);
if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
{
- srw_res->records[i].recordSchema = "http://www.loc.gov/marcxml/";
+ srw_res->records[i].recordSchema = m_schema;
srw_res->records[i].recordPacking = m_s2z_packing;
srw_res->records[i].recordData_buf = (char*)
r->u.octet_aligned->buf;
srw_res->records[i].recordData_len = r->u.octet_aligned->len;
- srw_res->records[i].recordPosition = 0;
+ srw_res->records[i].recordPosition = odr_intdup(o, i+start);
}
else
{
srw_res->records[i].recordPacking = m_s2z_packing;
srw_res->records[i].recordData_buf = "67";
srw_res->records[i].recordData_len = 2;
- srw_res->records[i].recordPosition = 0;
+ srw_res->records[i].recordPosition = odr_intdup(o, i+start);
}
}
}
return send_srw_response(srw_pdu);
}
-int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu, int *len)
+
+int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
+ int num_diagnostics)
{
- if (m_s2z_init_apdu && apdu->which == Z_APDU_initResponse)
+ Yaz_ProxyConfig *cfg = check_reconfigure();
+ if (cfg)
{
- m_s2z_init_apdu = 0;
- Z_InitResponse *res = apdu->u.initResponse;
- if (*res->result == 0)
- {
- send_to_srw_client_error(3);
- }
- else
+ int len;
+ char *b = cfg->get_explain(odr_encode(), 0 /* target */,
+ m_s2z_database, &len);
+ if (b)
{
- handle_incoming_Z_PDU(m_s2z_search_apdu);
+ Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
+ Z_SRW_explainResponse *er = res->u.explain_response;
+
+ er->record.recordData_buf = b;
+ er->record.recordData_len = len;
+ er->record.recordPacking = m_s2z_packing;
+
+ er->diagnostics = diagnostics;
+ er->num_diagnostics = num_diagnostics;
+ return send_srw_response(res);
}
}
- else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
+ return send_http_response(404);
+}
+
+int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu, int *len)
+{
+ if (m_http_version)
{
- m_s2z_search_apdu = 0;
- Z_SearchResponse *res = apdu->u.searchResponse;
- m_s2z_hit_count = *res->resultCount;
- if (res->records && res->records->which == Z_Records_NSD)
+ if (apdu->which == Z_APDU_initResponse)
{
- send_to_srw_client_ok(0, res->records);
+ Z_InitResponse *res = apdu->u.initResponse;
+ if (*res->result == 0)
+ {
+ send_to_srw_client_error(3, 0);
+ }
+ else if (!m_s2z_search_apdu)
+ {
+ send_srw_explain_response(0, 0);
+ }
+ else
+ {
+ handle_incoming_Z_PDU(m_s2z_search_apdu);
+ }
}
- else if (m_s2z_present_apdu)
+ else if (m_s2z_search_apdu && apdu->which == Z_APDU_searchResponse)
{
- handle_incoming_Z_PDU(m_s2z_present_apdu);
+ m_s2z_search_apdu = 0;
+ Z_SearchResponse *res = apdu->u.searchResponse;
+ m_s2z_hit_count = *res->resultCount;
+ if (res->records && res->records->which == Z_Records_NSD)
+ {
+ send_to_srw_client_ok(0, res->records, 1);
+ }
+ else if (m_s2z_present_apdu && m_s2z_hit_count > 0)
+ {
+ // adjust
+ Z_PresentRequest *pr = m_s2z_present_apdu->u.presentRequest;
+
+ if (*pr->resultSetStartPoint <= m_s2z_hit_count)
+ {
+ if (*pr->numberOfRecordsRequested+ *pr->resultSetStartPoint
+ > m_s2z_hit_count)
+ *pr->numberOfRecordsRequested =
+ 1 + m_s2z_hit_count - *pr->resultSetStartPoint;
+ }
+ handle_incoming_Z_PDU(m_s2z_present_apdu);
+ }
+ else
+ {
+ m_s2z_present_apdu = 0;
+ send_to_srw_client_ok(m_s2z_hit_count, res->records, 1);
+ }
}
- else
+ else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
{
- send_to_srw_client_ok(m_s2z_hit_count, res->records);
+ int start =
+ *m_s2z_present_apdu->u.presentRequest->resultSetStartPoint;
+
+ m_s2z_present_apdu = 0;
+ Z_PresentResponse *res = apdu->u.presentResponse;
+ send_to_srw_client_ok(m_s2z_hit_count, res->records, start);
}
}
- else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
+ else
{
- m_s2z_present_apdu = 0;
- Z_PresentResponse *res = apdu->u.presentResponse;
- send_to_srw_client_ok(m_s2z_hit_count, res->records);
+ if (m_log_mask & PROXY_LOG_REQ_CLIENT)
+ yaz_log (LOG_LOG, "%sSending %s to client", m_session_str,
+ apdu_name(apdu));
+ int r = send_Z_PDU(apdu, len);
+ logtime();
+ return r;
}
- else
- return send_Z_PDU(apdu, len);
return 0;
}
}
else
{
- if (m_marcxml_flag && p && p->which == Z_Records_DBOSD)
- convert_to_marcxml(p->u.databaseOrSurDiagnostics);
+ if (p && p->which == Z_Records_DBOSD)
+ {
+ if (m_marcxml_flag)
+ convert_to_marcxml(p->u.databaseOrSurDiagnostics);
+ convert_xsl(p->u.databaseOrSurDiagnostics);
+ }
if (sr->resultCount)
{
yaz_log(LOG_LOG, "%s%d hits", m_session_str,
*sr->presentStatus = Z_PresentStatus_failure;
display_diagrecs(&dr_p, 1);
}
- if (m_marcxml_flag && p && p->which == Z_Records_DBOSD)
- convert_to_marcxml(p->u.databaseOrSurDiagnostics);
+ if (p && p->which == Z_Records_DBOSD)
+ {
+ if (m_marcxml_flag)
+ convert_to_marcxml(p->u.databaseOrSurDiagnostics);
+ convert_xsl(p->u.databaseOrSurDiagnostics);
+ }
+ }
+ else if (apdu->which == Z_APDU_initResponse)
+ {
+ if (m_initRequest_options)
+ {
+ Z_Options *nopt =
+ (Odr_bitmask *)odr_malloc(odr_encode(),
+ sizeof(Odr_bitmask));
+ ODR_MASK_ZERO(nopt);
+
+ int i;
+ for (i = 0; i<24; i++)
+ if (ODR_MASK_GET(m_initRequest_options, i) &&
+ ODR_MASK_GET(apdu->u.initResponse->options, i))
+ ODR_MASK_SET(nopt, i);
+ apdu->u.initResponse->options = nopt;
+ }
+ if (m_initRequest_version)
+ {
+ Z_ProtocolVersion *nopt =
+ (Odr_bitmask *)odr_malloc(odr_encode(),
+ sizeof(Odr_bitmask));
+ ODR_MASK_ZERO(nopt);
+
+ int i;
+ for (i = 0; i<8; i++)
+ if (ODR_MASK_GET(m_initRequest_version, i) &&
+ ODR_MASK_GET(apdu->u.initResponse->protocolVersion, i))
+ ODR_MASK_SET(nopt, i);
+ apdu->u.initResponse->protocolVersion = nopt;
+ }
}
int r = send_PDU_convert(apdu, &len);
if (r)
return r;
- if (m_log_mask & PROXY_LOG_APDU_CLIENT)
- yaz_log (LOG_DEBUG, "%sSending %s to client %d bytes", m_session_str,
- apdu_name(apdu), len);
m_bytes_sent += len;
m_bw_stat.add_bytes(len);
if (kill_session)
m_client = 0;
m_parent->pre_init();
}
+ if (m_http_version)
+ {
+ if (!m_http_keepalive)
+ {
+#if 1
+ timeout(1);
+#else
+ shutdown();
+ return -1;
+#endif
+ }
+ }
return r;
}
int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
{
int len = 0;
+ const char *apdu_name_tmp = apdu_name(apdu);
int r = send_Z_PDU(apdu, &len);
if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
yaz_log (LOG_LOG, "%sSending %s to %s %d bytes",
get_session_str(),
- apdu_name(apdu), get_hostname(), len);
+ apdu_name_tmp, get_hostname(), len);
m_bytes_sent += len;
return r;
}
}
-void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
+void Yaz_Proxy::inc_request_no()
{
char *cp = strchr(m_session_str, ' ');
m_request_no++;
if (cp)
sprintf(cp+1, "%d ", m_request_no);
+}
+
+void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
+{
+ inc_request_no();
m_bytes_recv += len;
m_bw_stat.add_bytes(len);
m_pdu_stat.add_bytes(1);
+ gettimeofday(&m_time_tv, 0);
+
int bw_total = m_bw_stat.get_total();
int pdu_total = m_pdu_stat.get_total();
- yaz_log(LOG_LOG, "%sstat bw=%d pdu=%d limit-bw=%d limit-pdu=%d",
- m_session_str, bw_total, pdu_total, m_bw_max, m_pdu_max);
int reduce = 0;
if (m_bw_max)
{
}
if (reduce)
{
- yaz_log(LOG_LOG, "%sLimit delay=%d", m_session_str, reduce);
+ yaz_log(LOG_LOG, "%sdelay=%d bw=%d pdu=%d limit-bw=%d limit-pdu=%d",
+ m_session_str, reduce, bw_total, pdu_total,
+ m_bw_max, m_pdu_max);
+
m_bw_hold_PDU = apdu; // save PDU and signal "on hold"
timeout(reduce); // call us reduce seconds later
}
{
Z_RPNQuery *rpnquery = 0;
Z_SearchRequest *sr = apdu->u.searchRequest;
+ char *addinfo = 0;
yaz_log(LOG_LOG, "%sCQL: %s", m_session_str,
sr->query->u.type_104->u.cql);
int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
- &rpnquery, odr_encode());
+ &rpnquery, odr_encode(),
+ &addinfo);
if (r == -3)
yaz_log(LOG_LOG, "%sNo CQL to RPN table", m_session_str);
else if (r)
+ {
yaz_log(LOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
+
+ new_apdu->u.searchResponse->referenceId = sr->referenceId;
+ new_apdu->u.searchResponse->records =
+ create_nonSurrogateDiagnostics(odr_encode(),
+ yaz_diag_srw_to_bib1(r),
+ addinfo);
+ *new_apdu->u.searchResponse->searchStatus = 0;
+
+ send_to_client(new_apdu);
+
+ return 0;
+ }
else
{
sr->query->which = Z_Query_type_1;
int err = 0;
char *addinfo = 0;
Yaz_ProxyConfig *cfg = check_reconfigure();
-
+
+ Z_RecordComposition rc_temp, *rc = 0;
+ if (sr->smallSetElementSetNames)
+ {
+ rc_temp.which = Z_RecordComp_simple;
+ rc_temp.u.simple = sr->smallSetElementSetNames;
+ rc = &rc_temp;
+ }
+
if (cfg)
err = cfg->check_syntax(odr_encode(),
m_default_target,
- sr->preferredRecordSyntax,
- &addinfo);
+ sr->preferredRecordSyntax, rc,
+ &addinfo, &m_stylesheet_schema, &m_schema);
if (err == -1)
{
sr->preferredRecordSyntax =
- yaz_oidval_to_z3950oid(odr_decode(), CLASS_RECSYN,
- VAL_USMARC);
+ yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN, VAL_USMARC);
m_marcxml_flag = 1;
}
else if (err)
if (cfg)
err = cfg->check_syntax(odr_encode(), m_default_target,
pr->preferredRecordSyntax,
- &addinfo);
+ pr->recordComposition,
+ &addinfo, &m_stylesheet_schema, &m_schema);
if (err == -1)
{
pr->preferredRecordSyntax =
- yaz_oidval_to_z3950oid(odr_decode(), CLASS_RECSYN,
- VAL_USMARC);
+ yaz_oidval_to_z3950oid(odr_decode(), CLASS_RECSYN, VAL_USMARC);
m_marcxml_flag = 1;
}
else if (err)
return apdu;
}
-static int hex_digit (int ch)
-{
- if (ch >= '0' && ch <= '9')
- return ch - '0';
- else if (ch >= 'a' && ch <= 'f')
- return ch - 'a'+10;
- else if (ch >= 'A' && ch <= 'F')
- return ch - 'A'+10;
- return 0;
-}
-
-static char *uri_val(const char *path, const char *name, ODR o)
+Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
{
- size_t nlen = strlen(name);
- if (*path != '?')
- return 0;
- path++;
- while (path && *path)
- {
- const char *p1 = strchr(path, '=');
- if (!p1)
- break;
- if ((size_t)(p1 - path) == nlen && !memcmp(path, name, nlen))
- {
- size_t i = 0;
- char *ret;
-
- path = p1 + 1;
- p1 = strchr(path, '&');
- if (!p1)
- p1 = strlen(path) + path;
- ret = (char*) odr_malloc(o, p1 - path + 1);
- while (*path && *path != '&')
- {
- if (*path == '+')
- {
- ret[i++] = ' ';
- path++;
- }
- else if (*path == '%' && path[1] && path[2])
- {
- ret[i++] = hex_digit (path[1])*16 + hex_digit (path[2]);
- path = path + 3;
- }
- else
- ret[i++] = *path++;
- }
- ret[i] = '\0';
- return ret;
- }
- path = strchr(p1, '&');
- if (path)
- path++;
- }
- return 0;
-}
-
-void uri_val_int(const char *path, const char *name, ODR o, int **intp)
-{
- const char *v = uri_val(path, name, o);
- if (v)
- *intp = odr_intdup(o, atoi(v));
-}
-
-int yaz_check_for_sru(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
- char **soap_ns, ODR decode)
-{
- if (!strcmp(hreq->method, "GET"))
- {
- char *db = "Default";
- const char *p0 = hreq->path, *p1;
-#if HAVE_XML2
- int ret = -1;
- char *charset = 0;
- Z_SOAP *soap_package = 0;
- static Z_SOAP_Handler soap_handlers[2] = {
- {"http://www.loc.gov/zing/srw/v1.0/", 0,
- (Z_SOAP_fun) yaz_srw_codec},
- {0, 0, 0}
- };
-#endif
-
- if (*p0 == '/')
- p0++;
- p1 = strchr(p0, '?');
- if (!p1)
- p1 = p0 + strlen(p0);
- if (p1 != p0)
- {
- db = (char*) odr_malloc(decode, p1 - p0 + 1);
- memcpy (db, p0, p1 - p0);
- db[p1 - p0] = '\0';
- }
-#if HAVE_XML2
- if (p1 && *p1 == '?' && p1[1])
- {
- Z_SRW_PDU *sr = yaz_srw_get(decode, Z_SRW_searchRetrieve_request);
- char *query = uri_val(p1, "query", decode);
- char *pQuery = uri_val(p1, "pQuery", decode);
- char *sortKeys = uri_val(p1, "sortKeys", decode);
-
- *srw_pdu = sr;
- if (query)
- {
- sr->u.request->query_type = Z_SRW_query_type_cql;
- sr->u.request->query.cql = query;
- }
- if (pQuery)
- {
- sr->u.request->query_type = Z_SRW_query_type_pqf;
- sr->u.request->query.pqf = pQuery;
- }
- if (sortKeys)
- {
- sr->u.request->sort_type = Z_SRW_sort_type_sort;
- sr->u.request->sort.sortKeys = sortKeys;
- }
- sr->u.request->recordSchema = uri_val(p1, "recordSchema", decode);
- sr->u.request->recordPacking = uri_val(p1, "recordPacking", decode);
- if (!sr->u.request->recordPacking)
- sr->u.request->recordPacking = "xml";
- uri_val_int(p1, "maximumRecords", decode,
- &sr->u.request->maximumRecords);
- uri_val_int(p1, "startRecord", decode,
- &sr->u.request->startRecord);
- if (sr->u.request->startRecord)
- yaz_log(LOG_LOG, "startRecord=%d", *sr->u.request->startRecord);
- sr->u.request->database = db;
- *soap_ns = "SRU";
- return 0;
- }
-#endif
- return 1;
- }
- return 2;
+ if (!schema)
+ return 0;
+ Z_ElementSetNames *esn = (Z_ElementSetNames *)
+ odr_malloc(o, sizeof(Z_ElementSetNames));
+ esn->which = Z_ElementSetNames_generic;
+ esn->u.generic = odr_strdup(o, schema);
+ return esn;
}
-int yaz_check_for_srw(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
- char **soap_ns, ODR decode)
+void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
{
- if (!strcmp(hreq->method, "POST"))
+ if (m_s2z_odr_init)
{
- const char *content_type = z_HTTP_header_lookup(hreq->headers,
- "Content-Type");
- if (content_type && !yaz_strcmp_del("text/xml", content_type, "; "))
- {
- char *db = "Default";
- const char *p0 = hreq->path, *p1;
- Z_SOAP *soap_package = 0;
- int ret = -1;
- int http_code = 500;
- const char *charset_p = 0;
- char *charset = 0;
-
- static Z_SOAP_Handler soap_handlers[2] = {
-#if HAVE_XML2
- {"http://www.loc.gov/zing/srw/v1.0/", 0,
- (Z_SOAP_fun) yaz_srw_codec},
-#endif
- {0, 0, 0}
- };
-
- if (*p0 == '/')
- p0++;
- p1 = strchr(p0, '?');
- if (!p1)
- p1 = p0 + strlen(p0);
- if (p1 != p0)
- {
- db = (char*) odr_malloc(decode, p1 - p0 + 1);
- memcpy (db, p0, p1 - p0);
- db[p1 - p0] = '\0';
- }
-
- if ((charset_p = strstr(content_type, "; charset=")))
- {
- int i = 0;
- charset_p += 10;
- while (i < 20 && charset_p[i] &&
- !strchr("; \n\r", charset_p[i]))
- i++;
- charset = (char*) odr_malloc(decode, i+1);
- memcpy(charset, charset_p, i);
- charset[i] = '\0';
- yaz_log(LOG_LOG, "SOAP encoding %s", charset);
- }
- ret = z_soap_codec(decode, &soap_package,
- &hreq->content_buf, &hreq->content_len,
- soap_handlers);
- if (!ret && soap_package->which == Z_SOAP_generic &&
- soap_package->u.generic->no == 0)
- {
- *srw_pdu = (Z_SRW_PDU*) soap_package->u.generic->p;
-
- if ((*srw_pdu)->which == Z_SRW_searchRetrieve_request &&
- (*srw_pdu)->u.request->database == 0)
- (*srw_pdu)->u.request->database = db;
-
- *soap_ns = odr_strdup(decode, soap_package->ns);
- return 0;
- }
- return 1;
- }
+ odr_destroy(m_s2z_odr_init);
+ m_s2z_odr_init = 0;
}
- return 2;
-}
-
-void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
-{
- Z_SRW_PDU *srw_pdu = 0;
- char *soap_ns = 0;
- if (m_s2z_odr)
+ if (m_s2z_odr_search)
{
- odr_destroy(m_s2z_odr);
- m_s2z_odr = 0;
+ odr_destroy(m_s2z_odr_search);
+ m_s2z_odr_search = 0;
}
m_http_keepalive = 0;
m_http_version = "1.1";
}
- if (yaz_check_for_srw(hreq, &srw_pdu, &soap_ns, odr_decode()) == 0
- || yaz_check_for_sru(hreq, &srw_pdu, &soap_ns, odr_decode()) == 0)
+ Z_SRW_PDU *srw_pdu = 0;
+ Z_SOAP *soap_package = 0;
+ char *charset = 0;
+ Z_SRW_diagnostic *diagnostic = 0;
+ int num_diagnostic = 0;
+ if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
+ &charset) == 0
+ || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
+ &charset, &diagnostic, &num_diagnostic) == 0)
{
- m_s2z_odr = odr_createmem(ODR_ENCODE);
- m_soap_ns = odr_strdup(m_s2z_odr, soap_ns);
+ m_s2z_odr_init = odr_createmem(ODR_ENCODE);
+ m_s2z_odr_search = odr_createmem(ODR_ENCODE);
+ m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
m_s2z_init_apdu = 0;
m_s2z_search_apdu = 0;
m_s2z_present_apdu = 0;
+
+ m_s2z_stylesheet = 0;
+
if (srw_pdu->which == Z_SRW_searchRetrieve_request)
{
Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
+ m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
+ // recordXPath unsupported.
+ if (srw_req->recordXPath)
+ {
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 72, 0);
+ }
+ // must have a query
+ if (!srw_req->query.cql)
+ {
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 7, "query");
+ }
+ // sort unsupported
+ if (srw_req->sort_type != Z_SRW_sort_type_none)
+ {
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 80, 0);
+ }
+ // save stylesheet
+ if (srw_req->stylesheet)
+ m_s2z_stylesheet =
+ odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
+
// set packing for response records ..
if (srw_req->recordPacking &&
!strcmp(srw_req->recordPacking, "xml"))
else
m_s2z_packing = Z_SRW_recordPacking_string;
+ if (num_diagnostic)
+ {
+ Z_SRW_PDU *srw_pdu =
+ yaz_srw_get(odr_encode(),
+ Z_SRW_searchRetrieve_response);
+ Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
+
+ srw_res->diagnostics = diagnostic;
+ srw_res->num_diagnostics = num_diagnostic;
+ send_srw_response(srw_pdu);
+ return;
+ }
+
// prepare search PDU
- m_s2z_search_apdu = zget_APDU(m_s2z_odr, Z_APDU_searchRequest);
+ m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
+ Z_APDU_searchRequest);
Z_SearchRequest *z_searchRequest =
m_s2z_search_apdu->u.searchRequest;
z_searchRequest->num_databaseNames = 1;
z_searchRequest->databaseNames = (char**)
- odr_malloc(m_s2z_odr, sizeof(char *));
- z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr,
+ odr_malloc(m_s2z_odr_search, sizeof(char *));
+ z_searchRequest->databaseNames[0] = odr_strdup(m_s2z_odr_search,
srw_req->database);
// query transformation
Z_Query *query = (Z_Query *)
- odr_malloc(odr_encode(), sizeof(Z_Query));
+ odr_malloc(m_s2z_odr_search, sizeof(Z_Query));
z_searchRequest->query = query;
if (srw_req->query_type == Z_SRW_query_type_cql)
{
Z_External *ext = (Z_External *)
- odr_malloc(m_s2z_odr, sizeof(*ext));
+ odr_malloc(m_s2z_odr_search, sizeof(*ext));
ext->direct_reference =
- odr_getoidbystr(m_s2z_odr, "1.2.840.10003.16.2");
+ odr_getoidbystr(m_s2z_odr_search, "1.2.840.10003.16.2");
ext->indirect_reference = 0;
ext->descriptor = 0;
ext->which = Z_External_CQL;
pqf_parser = yaz_pqf_create ();
- RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr,
+ RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
srw_req->query.pqf);
if (!RPNquery)
{
yaz_log(LOG_LOG, "%*s^\n", off+4, "");
yaz_log(LOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
- send_to_srw_client_error(10);
+ send_to_srw_client_error(10, 0);
return;
}
query->which = Z_Query_type_1;
}
else
{
- send_to_srw_client_error(11);
+ send_to_srw_client_error(7, "query");
return;
}
start = *srw_req->startRecord;
if (max > 0)
{
- if (start <= 1) // Z39.50 piggyback
+ // Some backend, such as Voyager doesn't honor piggyback
+ // So we use present always (0 &&).
+ if (0 && start <= 1) // Z39.50 piggyback
{
*z_searchRequest->smallSetUpperBound = max;
*z_searchRequest->mediumSetPresentNumber = max;
*z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
+
z_searchRequest->preferredRecordSyntax =
- yaz_oidval_to_z3950oid(m_s2z_odr, CLASS_RECSYN,
+ yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
VAL_TEXT_XML);
+ if (srw_req->recordSchema)
+ {
+ z_searchRequest->smallSetElementSetNames =
+ z_searchRequest->mediumSetElementSetNames =
+ mk_esn_from_schema(m_s2z_odr_search,
+ srw_req->recordSchema);
+ }
}
else // Z39.50 present
{
- m_s2z_present_apdu = zget_APDU(m_s2z_odr,
+ m_s2z_present_apdu = zget_APDU(m_s2z_odr_search,
Z_APDU_presentRequest);
Z_PresentRequest *z_presentRequest =
m_s2z_present_apdu->u.presentRequest;
*z_presentRequest->resultSetStartPoint = start;
*z_presentRequest->numberOfRecordsRequested = max;
z_presentRequest->preferredRecordSyntax =
- yaz_oidval_to_z3950oid(m_s2z_odr, CLASS_RECSYN,
+ yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
VAL_TEXT_XML);
+ z_presentRequest->recordComposition =
+ (Z_RecordComposition *)
+ odr_malloc(m_s2z_odr_search,
+ sizeof(Z_RecordComposition));
+ if (srw_req->recordSchema)
+ {
+ z_presentRequest->recordComposition->which =
+ Z_RecordComp_simple;
+ z_presentRequest->recordComposition->u.simple =
+ mk_esn_from_schema(m_s2z_odr_search,
+ srw_req->recordSchema);
+ }
}
}
if (!m_client)
{
- m_s2z_init_apdu = zget_APDU(m_s2z_odr, Z_APDU_initRequest);
+ m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
+ Z_APDU_initRequest);
+
+ // prevent m_initRequest_apdu memory from being grabbed
+ // in Yaz_Proxy::handle_incoming_Z_PDU
+ m_initRequest_apdu = m_s2z_init_apdu;
handle_incoming_Z_PDU(m_s2z_init_apdu);
return;
}
return;
}
}
+ else if (srw_pdu->which == Z_SRW_explain_request)
+ {
+ Z_SRW_explainRequest *srw_req = srw_pdu->u.explain_request;
+
+ m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
+
+ // save stylesheet
+ if (srw_req->stylesheet)
+ m_s2z_stylesheet =
+ odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
+
+ if (srw_req->recordPacking &&
+ !strcmp(srw_req->recordPacking, "xml"))
+ m_s2z_packing = Z_SRW_recordPacking_XML;
+ else
+ m_s2z_packing = Z_SRW_recordPacking_string;
+
+ if (num_diagnostic)
+ {
+ send_srw_explain_response(diagnostic, num_diagnostic);
+ return;
+ }
+
+ if (!m_client)
+ {
+ m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
+ Z_APDU_initRequest);
+
+ // prevent m_initRequest_apdu memory from being grabbed
+ // in Yaz_Proxy::handle_incoming_Z_PDU
+ m_initRequest_apdu = m_s2z_init_apdu;
+ handle_incoming_Z_PDU(m_s2z_init_apdu);
+ }
+ else
+ send_srw_explain_response(0, 0);
+ return;
+ }
+ else if (srw_pdu->which == Z_SRW_scan_request)
+ {
+ m_s2z_database = odr_strdup(m_s2z_odr_init,
+ srw_pdu->u.scan_request->database);
+
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 4, "scan");
+ Z_SRW_PDU *srw_pdu =
+ yaz_srw_get(odr_encode(),
+ Z_SRW_scan_response);
+ Z_SRW_scanResponse *srw_res = srw_pdu->u.scan_response;
+
+ srw_res->diagnostics = diagnostic;
+ srw_res->num_diagnostics = num_diagnostic;
+ send_srw_response(srw_pdu);
+ return;
+ }
+ else
+ {
+ m_s2z_database = 0;
+
+ send_to_srw_client_error(4, 0);
+ }
}
int len = 0;
Z_GDU *p = z_get_HTTP_Response(odr_encode(), 400);
nmem_destroy(m_initRequest_mem);
m_initRequest_apdu = apdu;
m_initRequest_mem = odr_extract_mem(odr_decode());
+
+ // save init options for the response..
+ m_initRequest_options = apdu->u.initRequest->options;
+
+ apdu->u.initRequest->options =
+ (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
+ sizeof(Odr_bitmask));
+ ODR_MASK_ZERO(apdu->u.initRequest->options);
+ int i;
+ for (i = 0; i<= 24; i++)
+ ODR_MASK_SET(apdu->u.initRequest->options, i);
+ ODR_MASK_CLEAR(apdu->u.initRequest->options,
+ Z_Options_negotiationModel);
+
+ // make new version
+ m_initRequest_version = apdu->u.initRequest->protocolVersion;
+ apdu->u.initRequest->protocolVersion =
+ (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
+ sizeof(Odr_bitmask));
+ ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
+
+ for (i = 0; i<= 8; i++)
+ ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
}
if (m_client->m_init_flag)
{
if (handle_init_response_for_invalid_session(apdu))
return;
- Z_APDU *apdu = m_client->m_initResponse;
- apdu->u.initResponse->otherInfo = 0;
+ Z_APDU *apdu2 = m_client->m_initResponse;
+ apdu2->u.initResponse->otherInfo = 0;
if (m_client->m_cookie && *m_client->m_cookie)
- set_otherInformationString(apdu, VAL_COOKIE, 1,
+ set_otherInformationString(apdu2, VAL_COOKIE, 1,
m_client->m_cookie);
- send_to_client(apdu);
+ apdu2->u.initResponse->referenceId =
+ apdu->u.initRequest->referenceId;
+ apdu2->u.initResponse->options = m_client->m_initResponse_options;
+ apdu2->u.initResponse->protocolVersion =
+ m_client->m_initResponse_version;
+
+ send_to_client(apdu2);
return;
}
m_client->m_init_flag = 1;
void Yaz_Proxy::failNotify()
{
+ inc_request_no();
yaz_log (LOG_LOG, "%sConnection closed by client",
get_session_str());
shutdown();
void Yaz_ProxyClient::failNotify()
{
+ if (m_server)
+ m_server->inc_request_no();
yaz_log (LOG_LOG, "%sConnection closed by target %s",
get_session_str(), get_hostname());
shutdown();
Z_APDU *apdu = create_Z_PDU(Z_APDU_initRequest);
Z_InitRequest *req = apdu->u.initRequest;
- ODR_MASK_SET(req->options, Z_Options_search);
- ODR_MASK_SET(req->options, Z_Options_present);
- ODR_MASK_SET(req->options, Z_Options_namedResultSets);
- ODR_MASK_SET(req->options, Z_Options_triggerResourceCtrl);
- ODR_MASK_SET(req->options, Z_Options_scan);
- ODR_MASK_SET(req->options, Z_Options_sort);
- ODR_MASK_SET(req->options, Z_Options_extendedServices);
- ODR_MASK_SET(req->options, Z_Options_delSet);
-
- ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_1);
- ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_2);
- ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_3);
-
+ int i;
+ for (i = 0; i<= 24; i++)
+ ODR_MASK_SET(req->options, i);
+ ODR_MASK_CLEAR(apdu->u.initRequest->options,
+ Z_Options_negotiationModel);
+ for (i = 0; i<= 10; i++)
+ ODR_MASK_SET(req->protocolVersion, i);
+
if (send_to_target(apdu) < 0)
{
delete this;
}
else
{
+ inc_request_no();
+
yaz_log (LOG_LOG, "%sTimeout (client to proxy)", m_session_str);
shutdown();
}
}
}
+void Yaz_Proxy::markInvalid()
+{
+ m_client = 0;
+ m_invalid_session = 1;
+}
+
void Yaz_ProxyClient::timeoutNotify()
{
+ if (m_server)
+ m_server->inc_request_no();
+
yaz_log (LOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
get_hostname());
m_waiting = 1;
m_root->pre_init();
+ if (m_server && m_init_flag)
+ {
+ // target timed out in a session that was properly initialized
+ // server object stay alive but we mark it as invalid so it
+ // gets initialized again
+ m_server->markInvalid();
+ m_server = 0;
+ }
shutdown();
}
m_waiting = 0;
m_init_odr = odr_createmem (ODR_DECODE);
m_initResponse = 0;
+ m_initResponse_options = 0;
+ m_initResponse_version = 0;
m_resultSetStartPoint = 0;
m_bytes_sent = m_bytes_recv = 0;
m_pdu_recv = 0;
odr_reset (m_init_odr);
nmem_transfer (m_init_odr->mem, nmem);
m_initResponse = apdu;
+ m_initResponse_options = apdu->u.initResponse->options;
+ m_initResponse_version = apdu->u.initResponse->protocolVersion;
Z_InitResponse *ir = apdu->u.initResponse;
char *im0 = ir->implementationName;
int r = Yaz_Z_Assoc::server(addr);
if (!r)
{
- yaz_log(LOG_LOG, "%sStarted listener on %s", m_session_str, addr);
+ yaz_log(LOG_LOG, "%sStarted proxy " VERSION " on %s", m_session_str, addr);
timeout(1);
}
return r;
projects / yazpp-moved-to-github.git / blobdiff