/*
- * Copyright (c) 1998-2003, Index Data.
+ * Copyright (c) 1998-2004, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.58 2003-10-13 22:38:07 adam Exp $
+ * $Id: yaz-proxy.cpp,v 1.91 2004-01-15 23:44:58 adam Exp $
*/
#include <assert.h>
#include <time.h>
+#include <yaz/srw.h>
#include <yaz/marcdisp.h>
#include <yaz/yaz-iconv.h>
#include <yaz/log.h>
#include <yaz/diagbib1.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)
{
return "other";
}
+static const char *gdu_name(Z_GDU *gdu)
+{
+ switch(gdu->which)
+ {
+ case Z_GDU_Z3950:
+ return apdu_name(gdu->u.z3950);
+ case Z_GDU_HTTP_Request:
+ return "HTTP Request";
+ case Z_GDU_HTTP_Response:
+ return "HTTP Response";
+ }
+ return "Unknown request/response";
+}
+
Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable,
- Yaz_Proxy *parent = 0) :
+ Yaz_Proxy *parent) :
Yaz_Z_Assoc(the_PDU_Observable), m_bw_stat(60), m_pdu_stat(60)
{
m_PDU_Observable = the_PDU_Observable;
m_default_target = 0;
m_proxy_authentication = 0;
m_max_clients = 150;
+ m_log_mask = 0;
m_seed = time(0);
m_client_idletime = 600;
m_target_idletime = 600;
m_optimize = xstrdup ("1");
- strcpy(m_session_str, "x");
+ strcpy(m_session_str, "0 ");
m_session_no=0;
m_bytes_sent = m_bytes_recv = 0;
m_bw_hold_PDU = 0;
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_init = 0;
+ m_s2z_odr_search = 0;
+ m_s2z_init_apdu = 0;
+ m_s2z_search_apdu = 0;
+ m_s2z_present_apdu = 0;
+ m_http_keepalive = 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()
{
yaz_log(LOG_LOG, "%sClosed %d/%d sent/recv bytes total", m_session_str,
m_bytes_sent, m_bytes_recv);
+ nmem_destroy(m_initRequest_mem);
+ nmem_destroy(m_mem_invalid_session);
xfree (m_proxyTarget);
xfree (m_default_target);
xfree (m_proxy_authentication);
xfree (m_optimize);
+ 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;
}
xfree(m_config_fname);
m_config_fname = xstrdup(config);
int r = m_config->read_xml(config);
+ if (!r)
+ m_config->get_generic_info(&m_log_mask, &m_max_clients);
return r;
}
int r = cfg->read_xml(m_config_fname);
if (r)
yaz_log(LOG_WARN, "reconfigure failed");
+ else
+ {
+ m_log_mask = 0;
+ cfg->get_generic_info(&m_log_mask, &m_max_clients);
+ }
}
else
yaz_log(LOG_LOG, "reconfigure");
new_proxy->timeout(m_client_idletime);
new_proxy->m_target_idletime = m_target_idletime;
new_proxy->set_default_target(m_default_target);
+ new_proxy->m_max_clients = m_max_clients;
+ new_proxy->m_log_mask = m_log_mask;
new_proxy->set_APDU_log(get_APDU_log());
+ if (m_log_mask & PROXY_LOG_APDU_CLIENT)
+ new_proxy->set_APDU_yazlog(1);
+ else
+ new_proxy->set_APDU_yazlog(0);
new_proxy->set_proxy_authentication(m_proxy_authentication);
sprintf(new_proxy->m_session_str, "%ld:%d ", (long) time(0), m_session_no);
m_session_no++;
return ret;
}
-Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu)
+Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
+ const char *proxy_host)
{
assert (m_parent);
Yaz_Proxy *parent = m_parent;
- Z_OtherInformation **oi;
Yaz_ProxyClient *c = m_client;
- get_otherInfoAPDU(apdu, &oi);
- char *cookie = get_cookie(oi);
-
if (!m_proxyTarget)
{
const char *url[MAX_ZURL_PLEX];
- const char *proxy_host = get_proxy(oi);
Yaz_ProxyConfig *cfg = check_reconfigure();
if (proxy_host)
{
+#if 1
+/* only to be enabled for debugging... */
+ if (!strcmp(proxy_host, "stop"))
+ exit(0);
+#endif
xfree(m_default_target);
m_default_target = xstrdup(proxy_host);
proxy_host = m_default_target;
}
int client_idletime = -1;
- int pre_init = 0;
+ const char *cql2rpn_fname = 0;
url[0] = m_default_target;
url[1] = 0;
if (cfg)
+ {
+ int pre_init = 0;
cfg->get_target_info(proxy_host, url, &m_bw_max,
&m_pdu_max, &m_max_record_retrieve,
&m_target_idletime, &client_idletime,
&parent->m_max_clients,
&m_keepalive_limit_bw,
&m_keepalive_limit_pdu,
- &pre_init);
+ &pre_init,
+ &cql2rpn_fname);
+ }
if (client_idletime != -1)
{
m_client_idletime = client_idletime;
timeout(m_client_idletime);
}
+ if (cql2rpn_fname)
+ m_cql2rpn.set_pqf_file(cql2rpn_fname);
if (!url[0])
{
yaz_log(LOG_LOG, "%sNo default target", m_session_str);
m_proxyTarget = (char*) xstrdup(load_balance(url));
}
if (cookie && *cookie)
- {
- Yaz_ProxyClient *cc = 0;
-
+ { // search in sessions with a cookie
for (c = parent->m_clientPool; c; c = c->m_next)
{
assert (c->m_prev);
if (c->m_cookie && !strcmp(cookie,c->m_cookie) &&
!strcmp(m_proxyTarget, c->get_hostname()))
{
- cc = c;
- }
- }
- if (cc)
- {
- // found it in cache
- c = cc;
- // The following handles "cancel"
- // If connection is busy (waiting for PDU) and
- // we have an initRequest we can safely do re-open
- if (c->m_waiting && apdu->which == Z_APDU_initRequest)
- {
- yaz_log (LOG_LOG, "%s REOPEN target=%s", m_session_str,
- c->get_hostname());
- c->close();
- c->m_init_flag = 0;
-
- c->m_last_ok = 0;
- c->m_cache.clear();
- c->m_last_resultCount = 0;
- c->m_sr_transform = 0;
- c->m_waiting = 0;
- c->m_resultSetStartPoint = 0;
- c->m_target_idletime = m_target_idletime;
- if (c->client(m_proxyTarget))
+ // Found it in cache
+ // The following handles "cancel"
+ // If connection is busy (waiting for PDU) and
+ // we have an initRequest we can safely do re-open
+ if (c->m_waiting && apdu->which == Z_APDU_initRequest)
{
- delete c;
- return 0;
+ yaz_log (LOG_LOG, "%s REOPEN target=%s", m_session_str,
+ c->get_hostname());
+ c->close();
+ c->m_init_flag = 0;
+
+ c->m_last_ok = 0;
+ c->m_cache.clear();
+ c->m_last_resultCount = 0;
+ c->m_sr_transform = 0;
+ c->m_waiting = 0;
+ c->m_resultSetStartPoint = 0;
+ c->m_target_idletime = m_target_idletime;
+ if (c->client(m_proxyTarget))
+ {
+ delete c;
+ return 0;
+ }
+ c->timeout(30);
}
- c->timeout(30);
+ c->m_seqno = parent->m_seqno;
+ if (c->m_server && c->m_server != this)
+ c->m_server->m_client = 0;
+ c->m_server = this;
+ (parent->m_seqno)++;
+ yaz_log (LOG_DEBUG, "get_client 1 %p %p", this, c);
+ return c;
}
- c->m_seqno = parent->m_seqno;
- if (c->m_server && c->m_server != this)
- c->m_server->m_client = 0;
- c->m_server = this;
- (parent->m_seqno)++;
- yaz_log (LOG_DEBUG, "get_client 1 %p %p", this, c);
- return c;
}
}
else if (!c)
{
- Yaz_ProxyClient *cc = 0;
-
+ // don't have a client session yet. Search in session w/o cookie
for (c = parent->m_clientPool; c; c = c->m_next)
{
assert (c->m_prev);
c->m_waiting == 0 &&
!strcmp(m_proxyTarget, c->get_hostname()))
{
- cc = c;
- }
- }
- if (cc)
- {
- // found it in cache
- c = cc;
-
- yaz_log (LOG_LOG, "%sREUSE %d %d %s",
- m_session_str,
- c->m_seqno, parent->m_seqno, c->get_hostname());
-
- c->m_seqno = parent->m_seqno;
- assert(c->m_server == 0);
- c->m_server = this;
-
- (parent->m_seqno)++;
+ // found it in cache
+ yaz_log (LOG_LOG, "%sREUSE %s",
+ m_session_str, c->get_hostname());
+
+ c->m_seqno = parent->m_seqno;
+ assert(c->m_server == 0);
+ c->m_server = this;
- parent->pre_init();
+ if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
+ c->set_APDU_yazlog(1);
+ else
+ c->set_APDU_yazlog(0);
- return c;
+ (parent->m_seqno)++;
+
+ parent->pre_init();
+
+ return c;
+ }
}
}
if (!m_client)
{
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;
(parent->m_seqno)++;
c->m_target_idletime = m_target_idletime;
c->timeout(m_target_idletime);
+
+ if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
+ c->set_APDU_yazlog(1);
+ else
+ c->set_APDU_yazlog(0);
+
return c;
}
}
c->m_target_idletime = m_target_idletime;
c->timeout(30);
+ if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
+ c->set_APDU_yazlog(1);
+ else
+ c->set_APDU_yazlog(0);
}
yaz_log (LOG_DEBUG, "get_client 3 %p %p", this, c);
return c;
}
}
+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();
+ 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);
+ logtime();
+ return r;
+}
+
+int Yaz_Proxy::send_srw_response(Z_SRW_PDU *srw_pdu)
+{
+ ODR o = odr_encode();
+ const char *ctype = "text/xml";
+ Z_GDU *gdu = z_get_HTTP_Response(o, 200);
+ Z_HTTP_Response *hres = gdu->u.HTTP_Response;
+ if (m_http_version)
+ hres->version = odr_strdup(o, m_http_version);
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
+ if (m_http_keepalive)
+ z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
+
+ static Z_SOAP_Handler soap_handlers[2] = {
+#if HAVE_XSLT
+ {"http://www.loc.gov/zing/srw/", 0,
+ (Z_SOAP_fun) yaz_srw_codec},
+#endif
+ {0, 0, 0}
+ };
+
+ Z_SOAP *soap_package = (Z_SOAP*) odr_malloc(o, sizeof(Z_SOAP));
+ soap_package->which = Z_SOAP_generic;
+ soap_package->u.generic =
+ (Z_SOAP_Generic *) odr_malloc(o, sizeof(*soap_package->u.generic));
+ soap_package->u.generic->no = 0;
+ soap_package->u.generic->ns = soap_handlers[0].ns;
+ soap_package->u.generic->p = (void *) srw_pdu;
+ soap_package->ns = m_soap_ns;
+ 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);
+ logtime();
+ return r;
+}
+
+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);
+ Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
+
+ srw_res->num_diagnostics = 1;
+ 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 = add ? odr_strdup(o, add) : 0;
+ return send_srw_response(srw_pdu);
+}
+
+int Yaz_Proxy::z_to_srw_diag(ODR o, Z_SRW_searchRetrieveResponse *srw_res,
+ Z_DefaultDiagFormat *ddf)
+{
+ int bib1_code = *ddf->condition;
+ if (bib1_code == 109)
+ return 404;
+ srw_res->num_diagnostics = 1;
+ srw_res->diagnostics = (Z_SRW_diagnostic *)
+ odr_malloc(o, sizeof(*srw_res->diagnostics));
+ srw_res->diagnostics[0].code =
+ odr_intdup(o, yaz_diag_bib1_to_srw(*ddf->condition));
+ srw_res->diagnostics[0].details = ddf->u.v2Addinfo;
+ return 0;
+}
+
+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);
+ Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
+
+ srw_res->numberOfRecords = odr_intdup (o, hits);
+ if (records && records->which == Z_Records_DBOSD)
+ {
+ srw_res->num_records =
+ records->u.databaseOrSurDiagnostics->num_records;
+ int i;
+ srw_res->records = (Z_SRW_record *)
+ odr_malloc(o, srw_res->num_records * sizeof(Z_SRW_record));
+ for (i = 0; i < srw_res->num_records; i++)
+ {
+ Z_NamePlusRecord *npr = records->u.databaseOrSurDiagnostics->records[i];
+ if (npr->which != Z_NamePlusRecord_databaseRecord)
+ {
+ srw_res->records[i].recordSchema = "diagnostic";
+ 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 = 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 = 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 = odr_intdup(o, i+start);
+ }
+ else
+ {
+ srw_res->records[i].recordSchema = "diagnostic";
+ 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 = odr_intdup(o, i+start);
+ }
+ }
+ }
+ if (records && records->which == Z_Records_NSD)
+ {
+ int http_code;
+ http_code = z_to_srw_diag(odr_encode(), srw_res,
+ records->u.nonSurrogateDiagnostic);
+ if (http_code)
+ return send_http_response(http_code);
+ }
+ return send_srw_response(srw_pdu);
+
+}
+
+int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
+ int num_diagnostics)
+{
+ Yaz_ProxyConfig *cfg = check_reconfigure();
+ if (cfg)
+ {
+ int len;
+ char *b = cfg->get_explain(odr_encode(), 0 /* target */,
+ m_s2z_database, &len);
+ if (b)
+ {
+ 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);
+ }
+ }
+ return send_http_response(404);
+}
+
+int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu, int *len)
+{
+ if (m_http_version)
+ {
+ if (apdu->which == Z_APDU_initResponse)
+ {
+ 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_search_apdu && apdu->which == Z_APDU_searchResponse)
+ {
+ 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 if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
+ {
+ 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_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;
+ }
+ return 0;
+}
+
int Yaz_Proxy::send_to_client(Z_APDU *apdu)
{
int len = 0;
+ int kill_session = 0;
if (apdu->which == Z_APDU_searchResponse)
{
Z_SearchResponse *sr = apdu->u.searchResponse;
dr.which = Z_DiagRec_defaultFormat;
dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
+ *sr->searchStatus = 0;
display_diagrecs(&dr_p, 1);
}
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->resultCount);
if (*sr->resultCount < 0)
+ {
m_invalid_session = 1;
+ kill_session = 1;
+
+ *sr->searchStatus = 0;
+ sr->records =
+ create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
+ *sr->resultCount = 0;
+ }
}
}
}
Z_DiagRec dr, *dr_p = &dr;
dr.which = Z_DiagRec_defaultFormat;
dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
-
+ if (*sr->presentStatus == Z_PresentStatus_success)
+ *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);
+ }
}
- int r = send_Z_PDU(apdu, &len);
- yaz_log (LOG_DEBUG, "%sSending %s to client %d bytes", m_session_str,
- apdu_name(apdu), len);
+ 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;
m_bytes_sent += len;
m_bw_stat.add_bytes(len);
+ if (kill_session)
+ {
+ delete m_client;
+ 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);
- yaz_log (LOG_LOG, "%sSending %s to %s %d bytes",
- get_session_str(),
- apdu_name(apdu), get_hostname(), 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_tmp, get_hostname(), len);
m_bytes_sent += len;
return r;
}
if (apdu->which == Z_APDU_presentRequest)
{
Z_PresentRequest *pr = apdu->u.presentRequest;
- Z_NamePlusRecordList *npr;
int toget = *pr->numberOfRecordsRequested;
int start = *pr->resultSetStartPoint;
send_to_client(new_apdu);
return 0;
}
+ Z_NamePlusRecordList *npr;
if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
pr->preferredRecordSyntax,
pr->recordComposition))
}
-void Yaz_Proxy::recv_Z_PDU(Z_APDU *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();
- int reduce = 0;
m_bytes_recv += len;
- yaz_log (LOG_DEBUG, "%sReceiving %s from client %d bytes", m_session_str,
- apdu_name(apdu), len);
+ if (m_log_mask & PROXY_LOG_APDU_CLIENT)
+ yaz_log (LOG_DEBUG, "%sReceiving %s from client %d bytes",
+ m_session_str, gdu_name(apdu), len);
if (m_bw_hold_PDU) // double incoming PDU. shutdown now.
shutdown();
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 (bw_total > m_bw_max)
{
if (pdu_total > m_pdu_max)
{
- int nreduce = (60/m_pdu_max);
+ int nreduce = (m_pdu_max >= 60) ? 1 : 60/m_pdu_max;
reduce = (reduce > nreduce) ? reduce : nreduce;
}
}
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
}
- else
- recv_Z_PDU_0(apdu); // all fine. Proceed receive PDU as usual
+ else if (apdu->which == Z_GDU_Z3950)
+ handle_incoming_Z_PDU(apdu->u.z3950);
+ else if (apdu->which == Z_GDU_HTTP_Request)
+ handle_incoming_HTTP(apdu->u.HTTP_Request);
}
void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
return rec;
}
+Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
+{
+ if (apdu->which == Z_APDU_searchRequest &&
+ apdu->u.searchRequest->query &&
+ apdu->u.searchRequest->query->which == Z_Query_type_104 &&
+ apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
+ {
+ 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(),
+ &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;
+ sr->query->u.type_1 = rpnquery;
+ }
+ return apdu;
+ }
+ return apdu;
+}
+
Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu)
{
if (apdu->which == Z_APDU_searchRequest)
if (apdu->which == Z_APDU_searchRequest)
{
Z_SearchRequest *sr = apdu->u.searchRequest;
- if (*sr->smallSetUpperBound > 0 || *sr->largeSetLowerBound > 1)
+ int err = 0;
+ char *addinfo = 0;
+ Yaz_ProxyConfig *cfg = check_reconfigure();
+
+ Z_RecordComposition rc_temp, *rc = 0;
+ if (sr->smallSetElementSetNames)
{
- int err = 0;
- char *addinfo = 0;
- Yaz_ProxyConfig *cfg = check_reconfigure();
-
- if (cfg)
- err = cfg->check_syntax(odr_encode(),
- m_default_target,
- sr->preferredRecordSyntax,
- &addinfo);
- if (err == -1)
- {
- sr->preferredRecordSyntax =
- yaz_oidval_to_z3950oid(odr_decode(), CLASS_RECSYN,
- VAL_USMARC);
- m_marcxml_flag = 1;
- }
- else if (err)
- {
- 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(), err, addinfo);
- *new_apdu->u.searchResponse->searchStatus = 0;
-
- send_to_client(new_apdu);
-
- return 0;
- }
+ 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, rc,
+ &addinfo, &m_stylesheet_schema, &m_schema);
+ if (err == -1)
+ {
+ sr->preferredRecordSyntax =
+ yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN, VAL_USMARC);
+ m_marcxml_flag = 1;
+ }
+ else if (err)
+ {
+ 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(), err, addinfo);
+ *new_apdu->u.searchResponse->searchStatus = 0;
+
+ send_to_client(new_apdu);
+
+ return 0;
}
}
else if (apdu->which == Z_APDU_presentRequest)
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;
}
-void Yaz_Proxy::recv_Z_PDU_0(Z_APDU *apdu)
+Z_ElementSetNames *Yaz_Proxy::mk_esn_from_schema(ODR o, const char *schema)
{
+ 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;
+}
+
+void Yaz_Proxy::handle_incoming_HTTP(Z_HTTP_Request *hreq)
+{
+ if (m_s2z_odr_init)
+ {
+ odr_destroy(m_s2z_odr_init);
+ m_s2z_odr_init = 0;
+ }
+ if (m_s2z_odr_search)
+ {
+ odr_destroy(m_s2z_odr_search);
+ m_s2z_odr_search = 0;
+ }
+
+ m_http_keepalive = 0;
+ m_http_version = 0;
+ if (!strcmp(hreq->version, "1.0"))
+ {
+ const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+ if (v && !strcmp(v, "Keep-Alive"))
+ m_http_keepalive = 1;
+ else
+ m_http_keepalive = 0;
+ m_http_version = "1.0";
+ }
+ else
+ {
+ const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+ if (v && !strcmp(v, "close"))
+ m_http_keepalive = 0;
+ else
+ m_http_keepalive = 1;
+ m_http_version = "1.1";
+ }
+
+ 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_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"))
+ m_s2z_packing = Z_SRW_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_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_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(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_search, sizeof(*ext));
+ ext->direct_reference =
+ odr_getoidbystr(m_s2z_odr_search, "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;
+
+ query->which = Z_Query_type_104;
+ query->u.type_104 = ext;
+ }
+ else if (srw_req->query_type == Z_SRW_query_type_pqf)
+ {
+ Z_RPNQuery *RPNquery;
+ YAZ_PQF_Parser pqf_parser;
+
+ pqf_parser = yaz_pqf_create ();
+
+ RPNquery = yaz_pqf_parse (pqf_parser, m_s2z_odr_search,
+ srw_req->query.pqf);
+ if (!RPNquery)
+ {
+ const char *pqf_msg;
+ size_t off;
+ int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
+ 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, 0);
+ return;
+ }
+ query->which = Z_Query_type_1;
+ query->u.type_1 = RPNquery;
+
+ yaz_pqf_destroy (pqf_parser);
+ }
+ else
+ {
+ send_to_srw_client_error(7, "query");
+ return;
+ }
+
+ // present
+ m_s2z_present_apdu = 0;
+ int max = 0;
+ if (srw_req->maximumRecords)
+ max = *srw_req->maximumRecords;
+ int start = 1;
+ if (srw_req->startRecord)
+ start = *srw_req->startRecord;
+ if (max > 0)
+ {
+ // 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_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_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_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_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;
+ }
+ else
+ {
+ handle_incoming_Z_PDU(m_s2z_search_apdu);
+ 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);
+ send_GDU(p, &len);
+ timeout(1);
+}
+
+void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
+{
+ if (!m_client && m_invalid_session)
+ {
+ m_apdu_invalid_session = apdu;
+ m_mem_invalid_session = odr_extract_mem(odr_decode());
+ apdu = m_initRequest_apdu;
+ }
+
// Determine our client.
- m_client = get_client(apdu);
+ Z_OtherInformation **oi;
+ get_otherInfoAPDU(apdu, &oi);
+ m_client = get_client(apdu, get_cookie(oi), get_proxy(oi));
if (!m_client)
{
delete this;
if (apdu->u.initRequest->implementationVersion)
yaz_log(LOG_LOG, "%simplementationVersion: %s",
m_session_str, apdu->u.initRequest->implementationVersion);
+ if (m_initRequest_apdu == 0)
+ {
+ if (m_initRequest_mem)
+ 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)
{
- Z_APDU *apdu = m_client->m_initResponse;
- apdu->u.initResponse->otherInfo = 0;
+ if (handle_init_response_for_invalid_session(apdu))
+ return;
+ 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;
apdu = handle_syntax_validation(apdu);
if (apdu)
+ apdu = handle_query_transformation(apdu);
+
+ if (apdu)
apdu = handle_query_validation(apdu);
if (apdu)
}
// delete other info part from PDU before sending to target
- Z_OtherInformation **oi;
get_otherInfoAPDU(apdu, &oi);
if (oi)
*oi = 0;
void Yaz_Proxy::shutdown()
{
+ m_invalid_session = 0;
// only keep if keep_alive flag is set...
if (m_client &&
- !m_invalid_session &&
m_client->m_pdu_recv < m_keepalive_limit_pdu &&
m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
m_client->m_waiting == 0)
assert (m_client->m_waiting != 2);
// Tell client (if any) that no server connection is there..
m_client->m_server = 0;
+ m_invalid_session = 0;
}
else if (m_client)
{
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();
const char *h = get_hostname();
yaz_log (LOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
m_target_idletime);
- int to;
timeout(m_target_idletime);
if (!m_server)
pre_init_client();
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;
int max_clients;
int keepalive_limit_bw, keepalive_limit_pdu;
int pre_init;
+ const char *cql2rpn = 0;
Yaz_ProxyConfig *cfg = check_reconfigure();
- yaz_log(LOG_LOG, "pre_init");
zurl_in_use[0] = 0;
+
+ if (m_log_mask & PROXY_LOG_APDU_CLIENT)
+ set_APDU_yazlog(1);
+ else
+ set_APDU_yazlog(0);
+
for (i = 0; cfg && cfg->get_target_no(i, &name, zurl_in_use,
&limit_bw, &limit_pdu, &limit_req,
&target_idletime, &client_idletime,
&max_clients,
&keepalive_limit_bw,
&keepalive_limit_pdu,
- &pre_init) ; i++)
+ &pre_init,
+ &cql2rpn) ; i++)
{
if (pre_init)
{
{
Yaz_ProxyClient *c;
int spare = 0;
+ int in_use = 0;
+ int other = 0;
for (c = m_clientPool; c; c = c->m_next)
{
- if (!strcmp(zurl_in_use[j], c->get_hostname())
- && c->m_server == 0 && c->m_cookie == 0)
- spare++;
+ if (!strcmp(zurl_in_use[j], c->get_hostname()))
+ {
+ if (c->m_cookie == 0)
+ {
+ if (c->m_server == 0)
+ spare++;
+ else
+ in_use++;
+ }
+ else
+ other++;
+ }
}
- yaz_log(LOG_LOG, "pre_init %s %s spare=%d pre_init=%d",
- name, zurl_in_use[j], spare, pre_init);
+ yaz_log(LOG_LOG, "%spre-init %s %s use=%d other=%d spare=%d "
+ "preinit=%d",m_session_str,
+ name, zurl_in_use[j], in_use, other, spare, pre_init);
if (spare < pre_init)
{
c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
m_clientPool = c;
c->m_prev = &m_clientPool;
+ if (m_log_mask & PROXY_LOG_APDU_SERVER)
+ c->set_APDU_yazlog(1);
+ else
+ c->set_APDU_yazlog(0);
+
if (c->client(zurl_in_use[j]))
{
timeout(60);
c->timeout(30);
c->m_waiting = 1;
c->m_target_idletime = target_idletime;
- yaz_log(LOG_LOG, "pre_init name=%s zurl=%s timeout=%d", name,
- zurl_in_use[j], target_idletime);
c->m_seqno = m_seqno++;
}
}
if (m_bw_hold_PDU)
{
timeout(m_client_idletime);
- Z_APDU *apdu = m_bw_hold_PDU;
+ Z_GDU *apdu = m_bw_hold_PDU;
m_bw_hold_PDU = 0;
- recv_Z_PDU_0(apdu);
+
+ if (apdu->which == Z_GDU_Z3950)
+ handle_incoming_Z_PDU(apdu->u.z3950);
+ else if (apdu->which == Z_GDU_HTTP_Request)
+ handle_incoming_HTTP(apdu->u.HTTP_Request);
}
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;
return 0;
}
+void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
+{
+
+}
+
+void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
+{
+ if (apdu->which == Z_GDU_Z3950)
+ recv_Z_PDU(apdu->u.z3950, len);
+ else if (apdu->which == Z_GDU_HTTP_Response)
+ recv_HTTP_response(apdu->u.HTTP_Response, len);
+ else
+ shutdown();
+}
+
+int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
+{
+ if (!m_invalid_session)
+ return 0;
+ m_invalid_session = 0;
+ handle_incoming_Z_PDU(m_apdu_invalid_session);
+ assert (m_mem_invalid_session);
+ nmem_destroy(m_mem_invalid_session);
+ m_mem_invalid_session = 0;
+ return 1;
+}
+
void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
{
m_bytes_recv += len;
m_pdu_recv++;
m_waiting = 0;
- yaz_log (LOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
- apdu_name(apdu), get_hostname(), len);
+ if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
+ yaz_log (LOG_LOG, "%sReceiving %s from %s %d bytes", get_session_str(),
+ apdu_name(apdu), get_hostname(), len);
if (apdu->which == Z_APDU_initResponse)
{
if (!m_server) // if this is a pre init session , check for more
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;
ir->implementationName = im1;
nmem_destroy (nmem);
+
+ if (m_server && m_server->handle_init_response_for_invalid_session(apdu))
+ return;
}
if (apdu->which == Z_APDU_searchResponse)
{
}
}
-void Yaz_Proxy::server(const char *addr)
+int Yaz_Proxy::server(const char *addr)
{
- Yaz_Z_Assoc::server(addr);
-
- timeout(1);
+ int r = Yaz_Z_Assoc::server(addr);
+ if (!r)
+ {
+ yaz_log(LOG_LOG, "%sStarted proxy " VERSION " on %s", m_session_str, addr);
+ timeout(1);
+ }
+ return r;
}
projects / yazpp-moved-to-github.git / blobdiff