* Copyright (c) 1998-2003, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.59 2003-10-14 20:19:43 adam Exp $
+ * $Id: yaz-proxy.cpp,v 1.65 2003-10-23 09:08:52 adam Exp $
*/
#include <assert.h>
}
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;
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++;
Yaz_ProxyConfig *cfg = check_reconfigure();
if (proxy_host)
{
+#if 0
+/* 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;
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,
&m_keepalive_limit_bw,
&m_keepalive_limit_pdu,
&pre_init);
+ }
if (client_idletime != -1)
{
m_client_idletime = client_idletime;
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)
(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;
convert_to_marcxml(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);
+ 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);
return r;
{
int len = 0;
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(apdu), 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;
}
+#if 0
if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
{
if (start+toget-1 > m_client->m_last_resultCount)
return 0;
}
}
+#endif
}
if (apdu->which != Z_APDU_searchRequest)
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, apdu_name(apdu), len);
if (m_bw_hold_PDU) // double incoming PDU. shutdown now.
shutdown();
if (apdu->which == Z_APDU_searchRequest)
{
Z_SearchRequest *sr = apdu->u.searchRequest;
- if (*sr->smallSetUpperBound > 0 || *sr->mediumSetPresentNumber > 0)
+ 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)
{
- 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;
- }
+ 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;
}
}
else if (apdu->which == Z_APDU_presentRequest)
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();
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,
{
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, "%s pre-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++;
}
}
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
{
Yaz_Z_Assoc::server(addr);
+ yaz_log(LOG_LOG, "started OK");
timeout(1);
}
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