* Copyright (c) 1998-2003, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.45 2003-07-25 08:57:01 adam Exp $
+ * $Id: yaz-proxy.cpp,v 1.71 2003-12-16 14:17:01 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>
-Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable) :
- Yaz_Z_Assoc(the_PDU_Observable)
+static const char *apdu_name(Z_APDU *apdu)
+{
+ switch (apdu->which)
+ {
+ case Z_APDU_initRequest:
+ return "initRequest";
+ case Z_APDU_initResponse:
+ return "initResponse";
+ case Z_APDU_searchRequest:
+ return "searchRequest";
+ case Z_APDU_searchResponse:
+ return "searchResponse";
+ case Z_APDU_presentRequest:
+ return "presentRequest";
+ case Z_APDU_presentResponse:
+ return "presentResponse";
+ case Z_APDU_deleteResultSetRequest:
+ return "deleteResultSetRequest";
+ case Z_APDU_deleteResultSetResponse:
+ return "deleteResultSetResponse";
+ case Z_APDU_scanRequest:
+ return "scanRequest";
+ case Z_APDU_scanResponse:
+ return "scanResponse";
+ case Z_APDU_sortRequest:
+ return "sortRequest";
+ case Z_APDU_sortResponse:
+ return "sortResponse";
+ case Z_APDU_extendedServicesRequest:
+ return "extendedServicesRequest";
+ case Z_APDU_extendedServicesResponse:
+ return "extendedServicesResponse";
+ case Z_APDU_close:
+ return "close";
+ }
+ 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) :
+ Yaz_Z_Assoc(the_PDU_Observable), m_bw_stat(60), m_pdu_stat(60)
{
m_PDU_Observable = the_PDU_Observable;
m_client = 0;
- m_parent = 0;
+ m_parent = parent;
m_clientPool = 0;
m_seqno = 1;
- m_keepalive = 1;
+ m_keepalive_limit_bw = 500000;
+ m_keepalive_limit_pdu = 1000;
m_proxyTarget = 0;
+ m_default_target = 0;
m_proxy_authentication = 0;
- m_max_clients = 50;
+ m_max_clients = 150;
+ m_log_mask = 0;
m_seed = time(0);
- m_idletime = 600;
+ m_client_idletime = 600;
+ m_target_idletime = 600;
m_optimize = xstrdup ("1");
+ strcpy(m_session_str, "0 ");
+ m_session_no=0;
+ m_bytes_sent = m_bytes_recv = 0;
+ m_bw_hold_PDU = 0;
+ m_bw_max = 0;
+ m_pdu_max = 0;
+ m_max_record_retrieve = 0;
+ m_reconfig_flag = 0;
+ m_config_fname = 0;
+ m_request_no = 0;
+ m_invalid_session = 0;
+ m_config = 0;
+ m_marcxml_flag = 0;
+ m_initRequest_apdu = 0;
+ m_initRequest_mem = 0;
+ m_apdu_invalid_session = 0;
+ m_mem_invalid_session = 0;
+ m_s2z_odr = 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;
}
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);
+ if (m_s2z_odr)
+ odr_destroy(m_s2z_odr);
+ delete m_config;
}
-void Yaz_Proxy::set_proxy_target(const char *target)
+int Yaz_Proxy::set_config(const char *config)
{
- xfree (m_proxyTarget);
- m_proxyTarget = 0;
+ delete m_config;
+ m_config = new Yaz_ProxyConfig();
+ 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;
+}
+
+void Yaz_Proxy::set_default_target(const char *target)
+{
+ xfree (m_default_target);
+ m_default_target = 0;
if (target)
- m_proxyTarget = (char *) xstrdup (target);
+ m_default_target = (char *) xstrdup (target);
}
void Yaz_Proxy::set_proxy_authentication (const char *auth)
m_proxy_authentication = (char *) xstrdup (auth);
}
+Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure()
+{
+ if (m_parent)
+ return m_parent->check_reconfigure();
+
+ Yaz_ProxyConfig *cfg = m_config;
+ if (m_reconfig_flag)
+ {
+ yaz_log(LOG_LOG, "reconfigure");
+ yaz_log_reopen();
+ if (m_config_fname && cfg)
+ {
+ yaz_log(LOG_LOG, "reconfigure config %s", m_config_fname);
+ 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");
+ m_reconfig_flag = 0;
+ }
+ return cfg;
+}
+
IYaz_PDU_Observer *Yaz_Proxy::sessionNotify(IYaz_PDU_Observable
*the_PDU_Observable, int fd)
{
- Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable);
- new_proxy->m_parent = this;
- new_proxy->timeout(m_idletime);
- new_proxy->set_proxy_target(m_proxyTarget);
+ check_reconfigure();
+ Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable, this);
+ new_proxy->m_config = 0;
+ new_proxy->m_config_fname = 0;
+ 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);
- yaz_log (LOG_LOG, "New session p=%p", new_proxy);
+ sprintf(new_proxy->m_session_str, "%ld:%d ", (long) time(0), m_session_no);
+ m_session_no++;
+ yaz_log (LOG_LOG, "%sNew session %s", new_proxy->m_session_str,
+ the_PDU_Observable->getpeername());
return new_proxy;
}
return 0;
}
-Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu)
+const char *Yaz_Proxy::load_balance(const char **url)
+{
+ int zurl_in_use[MAX_ZURL_PLEX];
+ Yaz_ProxyClient *c;
+ int i;
+
+ for (i = 0; i<MAX_ZURL_PLEX; i++)
+ zurl_in_use[i] = 0;
+ for (c = m_parent->m_clientPool; c; c = c->m_next)
+ {
+ for (i = 0; url[i]; i++)
+ if (!strcmp(url[i], c->get_hostname()))
+ zurl_in_use[i]++;
+ }
+ int min = 100000;
+ const char *ret = 0;
+ for (i = 0; url[i]; i++)
+ {
+ yaz_log(LOG_DEBUG, "%szurl=%s use=%d",
+ m_session_str, url[i], zurl_in_use[i]);
+ if (min > zurl_in_use[i])
+ {
+ ret = url[i];
+ min = zurl_in_use[i];
+ }
+ }
+ return ret;
+}
+
+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);
-
- const char *proxy_host = get_proxy(oi);
- if (proxy_host)
- set_proxy_target(proxy_host);
-
- // no target specified at all?
if (!m_proxyTarget)
- return 0;
-
- if (!strcmp(m_proxyTarget, "stop"))
- exit (0);
- if (cookie && *cookie)
{
- Yaz_ProxyClient *cc = 0;
-
+ const char *url[MAX_ZURL_PLEX];
+ 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;
+ 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,
+ &cql2rpn_fname);
+ }
+ if (client_idletime != -1)
+ {
+ m_client_idletime = client_idletime;
+ 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);
+ return 0;
+ }
+ // we don't handle multiplexing for cookie session, so we just
+ // pick the first one in this case (anonymous users will be able
+ // to use any backend)
+ if (cookie && *cookie)
+ m_proxyTarget = (char*) xstrdup(url[0]);
+ else
+ m_proxyTarget = (char*) xstrdup(load_balance(url));
+ }
+ if (cookie && *cookie)
+ { // search in sessions with a cookie
for (c = parent->m_clientPool; c; c = c->m_next)
{
assert (c->m_prev);
assert (*c->m_prev == c);
- if (!strcmp(cookie,c->m_cookie) &&
+ 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, "reopen target=%s", c->get_hostname());
- c->close();
- c->client(m_proxyTarget);
- 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->timeout(m_idletime);
+ // 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)
+ {
+ 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->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);
assert (*c->m_prev == c);
- if (c->m_server == 0 && c->m_cookie[0] == 0 &&
+ if (c->m_server == 0 && c->m_cookie == 0 &&
+ c->m_waiting == 0 &&
!strcmp(m_proxyTarget, c->get_hostname()))
{
- cc = c;
- }
- }
- if (cc)
- {
- // found it in cache
- c = cc;
+ // 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;
- yaz_log (LOG_LOG, "Reuse session %d to %d %s",
- c->m_seqno, parent->m_seqno, c->get_hostname());
+ if (parent->m_log_mask & PROXY_LOG_APDU_SERVER)
+ c->set_APDU_yazlog(1);
+ else
+ c->set_APDU_yazlog(0);
- c->m_seqno = parent->m_seqno;
- assert(c->m_server == 0);
- c->m_server = this;
-
- (parent->m_seqno)++;
- return c;
+ (parent->m_seqno)++;
+
+ parent->pre_init();
+
+ return c;
+ }
}
}
if (!m_client)
int min_seq = -1;
int no_of_clients = 0;
if (parent->m_clientPool)
- yaz_log (LOG_LOG, "Existing sessions");
+ yaz_log (LOG_DEBUG, "Existing sessions");
for (c = parent->m_clientPool; c; c = c->m_next)
{
- yaz_log (LOG_LOG, " Session %-3d wait=%d %s", c->m_seqno,
- c->m_waiting, c->get_hostname());
+ yaz_log (LOG_DEBUG, " Session %-3d wait=%d %s cookie=%s", c->m_seqno,
+ c->m_waiting, c->get_hostname(),
+ c->m_cookie ? c->m_cookie : "");
no_of_clients++;
if (min_seq < 0 || c->m_seqno < min_seq)
{
c = c_min;
if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
{
- yaz_log (LOG_LOG, "Replace session %d",
- c->m_seqno);
+ yaz_log (LOG_LOG, "%sMAXCLIENTS Destroy %d",
+ m_session_str, c->m_seqno);
if (c->m_server && c->m_server != this)
delete c->m_server;
c->m_server = 0;
}
else
{
- yaz_log (LOG_LOG, "Move session %d to %d %s",
- c->m_seqno, parent->m_seqno, c->get_hostname());
+ yaz_log (LOG_LOG, "%sMAXCLIENTS Reuse %d %d %s",
+ m_session_str,
+ c->m_seqno, parent->m_seqno, c->get_hostname());
+ xfree (c->m_cookie);
+ c->m_cookie = 0;
if (cookie)
- strcpy (c->m_cookie, cookie);
- else
- c->m_cookie[0] = '\0';
+ c->m_cookie = xstrdup(cookie);
c->m_seqno = parent->m_seqno;
if (c->m_server && c->m_server != this)
{
delete c->m_server;
}
(parent->m_seqno)++;
- yaz_log (LOG_DEBUG, "get_client 2 %p %p", this, c);
+ 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;
}
}
else
{
- yaz_log (LOG_LOG, "Making session %d %s", parent->m_seqno,
- m_proxyTarget);
- c = new Yaz_ProxyClient(m_PDU_Observable->clone());
+ yaz_log (LOG_LOG, "%sNEW %d %s",
+ m_session_str, parent->m_seqno, m_proxyTarget);
+ c = new Yaz_ProxyClient(m_PDU_Observable->clone(), parent);
c->m_next = parent->m_clientPool;
if (c->m_next)
c->m_next->m_prev = &c->m_next;
parent->m_clientPool = c;
c->m_prev = &parent->m_clientPool;
}
+
+ xfree (c->m_cookie);
+ c->m_cookie = 0;
if (cookie)
- strcpy (c->m_cookie, cookie);
- else
- c->m_cookie[0] = '\0';
- yaz_log (LOG_LOG, "Connecting to %s", m_proxyTarget);
+ c->m_cookie = xstrdup(cookie);
+
c->m_seqno = parent->m_seqno;
- c->client(m_proxyTarget);
c->m_init_flag = 0;
c->m_last_resultCount = 0;
c->m_last_ok = 0;
c->m_sr_transform = 0;
c->m_waiting = 0;
c->m_resultSetStartPoint = 0;
- c->timeout(20);
-
(parent->m_seqno)++;
+ if (c->client(m_proxyTarget))
+ {
+ delete c;
+ return 0;
+ }
+ 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::display_diagrecs(Z_DiagRec **pp, int num)
+{
+ int i;
+ for (i = 0; i<num; i++)
+ {
+ oident *ent;
+ Z_DefaultDiagFormat *r;
+ Z_DiagRec *p = pp[i];
+ if (p->which != Z_DiagRec_defaultFormat)
+ {
+ yaz_log(LOG_LOG, "%sError no diagnostics", m_session_str);
+ return;
+ }
+ else
+ r = p->u.defaultFormat;
+ if (!(ent = oid_getentbyoid(r->diagnosticSetId)) ||
+ ent->oclass != CLASS_DIAGSET || ent->value != VAL_BIB1)
+ yaz_log(LOG_LOG, "%sError unknown diagnostic set", m_session_str);
+ switch (r->which)
+ {
+ case Z_DefaultDiagFormat_v2Addinfo:
+ yaz_log(LOG_LOG, "%sError %d %s:%s",
+ m_session_str,
+ *r->condition, diagbib1_str(*r->condition),
+ r->u.v2Addinfo);
+ break;
+ case Z_DefaultDiagFormat_v3Addinfo:
+ yaz_log(LOG_LOG, "%sError %d %s:%s",
+ m_session_str,
+ *r->condition, diagbib1_str(*r->condition),
+ r->u.v3Addinfo);
+ break;
+ }
+ }
+}
+
+void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p)
+{
+ int i;
+
+ yaz_marc_t mt = yaz_marc_create();
+ yaz_marc_xml(mt, YAZ_MARC_MARCXML);
+ 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)
+ {
+ int rlen;
+ char *result;
+ if (yaz_marc_decode_buf(mt, (char*) r->u.octet_aligned->buf,
+ r->u.octet_aligned->len,
+ &result, &rlen))
+ {
+ yaz_iconv_t cd = yaz_iconv_open("UTF-8", "MARC-8");
+ WRBUF wrbuf = wrbuf_alloc();
+
+ char outbuf[120];
+ size_t inbytesleft = rlen;
+ const char *inp = result;
+ while (cd && inbytesleft)
+ {
+ size_t outbytesleft = sizeof(outbuf);
+ char *outp = outbuf;
+ size_t r;
+
+ r = yaz_iconv (cd, (char**) &inp,
+ &inbytesleft,
+ &outp, &outbytesleft);
+ if (r == (size_t) (-1))
+ {
+ int e = yaz_iconv_error(cd);
+ if (e != YAZ_ICONV_E2BIG)
+ {
+ yaz_log(LOG_WARN, "conversion failure");
+ break;
+ }
+ }
+ wrbuf_write(wrbuf, outbuf, outp - outbuf);
+ }
+ if (cd)
+ yaz_iconv_close(cd);
+
+ npr->u.databaseRecord = z_ext_record(odr_encode(),
+ VAL_TEXT_XML,
+ wrbuf_buf(wrbuf),
+ wrbuf_len(wrbuf));
+ wrbuf_free(wrbuf, 1);
+ }
+ }
+ }
+ }
+ yaz_marc_destroy(mt);
+}
+
+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);
+ int len;
+ int r = send_GDU(gdu, &len);
+ delete this;
+ 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_XML2
+ {"http://www.loc.gov/zing/srw/v1.0/", 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;
+ int ret = z_soap_codec_enc(o, &soap_package,
+ &hres->content_buf, &hres->content_len,
+ soap_handlers, 0);
+ int len;
+ int r = send_GDU(gdu, &len);
+ if (!m_http_keepalive)
+ delete this;
+}
+
+int Yaz_Proxy::send_to_srw_client_error(int srw_error)
+{
+ 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 = 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)
+{
+ 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 = 0;
+ 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].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;
+ }
+ 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 = 0;
+ }
+ }
+ }
+ 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_PDU_convert(Z_APDU *apdu, int *len)
+{
+ if (m_s2z_init_apdu && apdu->which == Z_APDU_initResponse)
+ {
+ m_s2z_init_apdu = 0;
+ Z_InitResponse *res = apdu->u.initResponse;
+ if (*res->result == 0)
+ {
+ send_to_srw_client_error(3);
+ }
+ 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);
+ }
+ else if (m_s2z_present_apdu)
+ {
+ handle_incoming_Z_PDU(m_s2z_present_apdu);
+ }
+ else
+ {
+ send_to_srw_client_ok(m_s2z_hit_count, res->records);
+ }
+ }
+ else if (m_s2z_present_apdu && apdu->which == Z_APDU_presentResponse)
+ {
+ m_s2z_present_apdu = 0;
+ Z_PresentResponse *res = apdu->u.presentResponse;
+ send_to_srw_client_ok(m_s2z_hit_count, res->records);
+ }
+ else
+ return send_Z_PDU(apdu, len);
+ 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;
+ Z_Records *p = sr->records;
+ if (p && p->which == Z_Records_NSD)
+ {
+ Z_DiagRec dr, *dr_p = &dr;
+ 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 (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;
+ }
+ }
+ }
+ }
+ else if (apdu->which == Z_APDU_presentResponse)
+ {
+ Z_PresentResponse *sr = apdu->u.presentResponse;
+ Z_Records *p = sr->records;
+ if (p && p->which == Z_Records_NSD)
+ {
+ 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);
+ }
+ 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)
+ {
+ delete m_client;
+ m_client = 0;
+ m_parent->pre_init();
+ }
+ return r;
+}
+
+int Yaz_ProxyClient::send_to_target(Z_APDU *apdu)
+{
+ int len = 0;
+ 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);
+ m_bytes_sent += len;
+ return r;
+}
+
Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
{
- if (*m_parent->m_optimize == '0')
- return apdu; // don't optimize result sets..
if (apdu->which == Z_APDU_presentRequest)
{
Z_PresentRequest *pr = apdu->u.presentRequest;
- Z_NamePlusRecordList *npr;
int toget = *pr->numberOfRecordsRequested;
int start = *pr->resultSetStartPoint;
- if (m_client->m_last_resultSetId &&
- !strcmp(m_client->m_last_resultSetId, pr->resultSetId))
+ yaz_log(LOG_LOG, "%sPresent %s %d+%d", m_session_str,
+ pr->resultSetId, start, toget);
+
+ if (*m_parent->m_optimize == '0')
+ return apdu;
+
+ if (!m_client->m_last_resultSetId)
+ {
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
+ new_apdu->u.presentResponse->records =
+ create_nonSurrogateDiagnostics(odr_encode(), 30,
+ pr->resultSetId);
+ send_to_client(new_apdu);
+ return 0;
+ }
+ if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
{
+ if (start+toget-1 > m_client->m_last_resultCount)
+ {
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
+ new_apdu->u.presentResponse->records =
+ create_nonSurrogateDiagnostics(odr_encode(), 13, 0);
+ 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))
{
- yaz_log (LOG_LOG, "Returned cache records for present request");
+ yaz_log (LOG_LOG, "%sReturned cached records for present request",
+ m_session_str);
Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
new_apdu->u.presentResponse->referenceId = pr->referenceId;
new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
new_apdu->u.presentResponse->nextResultSetPosition =
odr_intdup(odr_encode(), start+toget);
- send_Z_PDU(new_apdu);
+
+ send_to_client(new_apdu);
return 0;
}
}
sr->databaseNames);
this_query->set_Z_Query(sr->query);
-
- if (m_client->m_last_ok && m_client->m_last_query &&
+
+ char query_str[120];
+ this_query->print(query_str, sizeof(query_str)-1);
+ yaz_log(LOG_LOG, "%sSearch %s", m_session_str, query_str);
+
+ if (*m_parent->m_optimize != '0' &&
+ m_client->m_last_ok && m_client->m_last_query &&
m_client->m_last_query->match(this_query) &&
!strcmp(m_client->m_last_resultSetId, sr->resultSetName) &&
m_client->m_last_databases.match(this_databases))
if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
sr->preferredRecordSyntax, comp))
{
- yaz_log (LOG_LOG, "Returned cache records for medium set");
+ yaz_log (LOG_LOG, "%sReturned cached records for medium set",
+ m_session_str);
Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
new_apdu->u.searchResponse->referenceId = sr->referenceId;
new_apdu->u.searchResponse->resultCount =
new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
new_apdu->u.searchResponse->nextResultSetPosition =
odr_intdup(odr_encode(), toget+1);
- send_Z_PDU(new_apdu);
+ send_to_client(new_apdu);
return 0;
}
else
{
// medium Set
// send present request (medium size)
- yaz_log (LOG_LOG, "Optimizing search for medium set");
+ yaz_log (LOG_LOG, "%sOptimizing search for medium set",
+ m_session_str);
Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
Z_PresentRequest *pr = new_apdu->u.presentRequest;
m_client->m_last_resultCount <= 0)
{
// large set. Return pseudo-search response immediately
- yaz_log (LOG_LOG, "Optimizing search for large set");
+ yaz_log (LOG_LOG, "%sOptimizing search for large set",
+ m_session_str);
Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
new_apdu->u.searchResponse->referenceId = sr->referenceId;
new_apdu->u.searchResponse->resultCount =
&m_client->m_last_resultCount;
- send_Z_PDU(new_apdu);
+ send_to_client(new_apdu);
return 0;
}
else
if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
sr->preferredRecordSyntax, comp))
{
- yaz_log (LOG_LOG, "Returned cache records for small set");
+ yaz_log (LOG_LOG, "%sReturned cached records for small set",
+ m_session_str);
Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
new_apdu->u.searchResponse->referenceId = sr->referenceId;
new_apdu->u.searchResponse->resultCount =
new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
new_apdu->u.searchResponse->nextResultSetPosition =
odr_intdup(odr_encode(), toget+1);
- send_Z_PDU(new_apdu);
+ send_to_client(new_apdu);
return 0;
}
else
{
- yaz_log (LOG_LOG, "Optimizing search for small set");
+ yaz_log (LOG_LOG, "%sOptimizing search for small set",
+ m_session_str);
Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
Z_PresentRequest *pr = new_apdu->u.presentRequest;
pr->referenceId = sr->referenceId;
}
}
}
- else
+ else // query doesn't match
{
delete m_client->m_last_query;
m_client->m_last_query = this_query;
return apdu;
}
-static const char *apdu_name(Z_APDU *apdu)
+
+void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
{
- switch (apdu->which)
- {
- case Z_APDU_initRequest:
- return "initRequest";
- case Z_APDU_initResponse:
- return "initResponse";
- case Z_APDU_searchRequest:
- return "searchRequest";
- case Z_APDU_searchResponse:
- return "searchResponse";
- case Z_APDU_presentRequest:
- return "presentRequest";
- case Z_APDU_presentResponse:
- return "presentResponse";
- case Z_APDU_deleteResultSetRequest:
- return "deleteResultSetRequest";
- case Z_APDU_deleteResultSetResponse:
- return "deleteResultSetResponse";
- case Z_APDU_scanRequest:
- return "scanRequest";
- case Z_APDU_scanResponse:
- return "scanResponse";
- case Z_APDU_sortRequest:
- return "sortRequest";
- case Z_APDU_sortResponse:
- return "sortResponse";
- case Z_APDU_extendedServicesRequest:
- return "extendedServicesRequest";
- case Z_APDU_extendedServicesResponse:
- return "extendedServicesResponse";
- case Z_APDU_close:
- return "close";
+ char *cp = strchr(m_session_str, ' ');
+ m_request_no++;
+ if (cp)
+ sprintf(cp+1, "%d ", m_request_no);
+
+ m_bytes_recv += 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);
+
+ 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)
+ {
+ reduce = (bw_total/m_bw_max);
+ }
}
- return "other";
+ if (m_pdu_max)
+ {
+ if (pdu_total > 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);
+ m_bw_hold_PDU = apdu; // save PDU and signal "on hold"
+ timeout(reduce); // call us reduce seconds later
+ }
+ 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)
+{
+ if (m_max_record_retrieve)
+ {
+ if (apdu->which == Z_APDU_presentRequest)
+ {
+ Z_PresentRequest *pr = apdu->u.presentRequest;
+ if (pr->numberOfRecordsRequested &&
+ *pr->numberOfRecordsRequested > m_max_record_retrieve)
+ *pr->numberOfRecordsRequested = m_max_record_retrieve;
+ }
+ }
+}
+
+Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr,
+ int error,
+ const char *addinfo)
+{
+ Z_Records *rec = (Z_Records *)
+ odr_malloc (odr, sizeof(*rec));
+ int *err = (int *)
+ odr_malloc (odr, sizeof(*err));
+ Z_DiagRec *drec = (Z_DiagRec *)
+ odr_malloc (odr, sizeof(*drec));
+ Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
+ odr_malloc (odr, sizeof(*dr));
+ *err = error;
+ rec->which = Z_Records_NSD;
+ rec->u.nonSurrogateDiagnostic = dr;
+ dr->diagnosticSetId =
+ yaz_oidval_to_z3950oid (odr, CLASS_DIAGSET, VAL_BIB1);
+ dr->condition = err;
+ dr->which = Z_DefaultDiagFormat_v2Addinfo;
+ dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
+ 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;
+
+ 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());
+ 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);
+ 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)
+ {
+ Z_SearchRequest *sr = apdu->u.searchRequest;
+ int err = 0;
+ char *addinfo = 0;
+
+ Yaz_ProxyConfig *cfg = check_reconfigure();
+ if (cfg)
+ err = cfg->check_query(odr_encode(), m_default_target,
+ sr->query, &addinfo);
+ 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;
+ }
+ }
+ return apdu;
+}
+
+Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu)
+{
+ m_marcxml_flag = 0;
+ if (apdu->which == Z_APDU_searchRequest)
+ {
+ Z_SearchRequest *sr = apdu->u.searchRequest;
+ 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;
+ }
+ }
+ else if (apdu->which == Z_APDU_presentRequest)
+ {
+ Z_PresentRequest *pr = apdu->u.presentRequest;
+ int err = 0;
+ char *addinfo = 0;
+ Yaz_ProxyConfig *cfg = check_reconfigure();
+
+ if (cfg)
+ err = cfg->check_syntax(odr_encode(), m_default_target,
+ pr->preferredRecordSyntax,
+ &addinfo);
+ if (err == -1)
+ {
+ pr->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_presentResponse);
+
+ new_apdu->u.presentResponse->referenceId = pr->referenceId;
+ new_apdu->u.presentResponse->records =
+ create_nonSurrogateDiagnostics(odr_encode(), err, addinfo);
+ *new_apdu->u.presentResponse->presentStatus =
+ Z_PresentStatus_failure;
+
+ send_to_client(new_apdu);
+
+ return 0;
+ }
+ }
+ return apdu;
}
-void Yaz_Proxy::recv_Z_PDU(Z_APDU *apdu)
+static int hex_digit (int ch)
{
- yaz_log (LOG_LOG, "Receiving %s from client", apdu_name(apdu));
+ 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)
+{
+ 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;
+}
+
+int yaz_check_for_srw(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
+ char **soap_ns, ODR decode)
+{
+ if (!strcmp(hreq->method, "POST"))
+ {
+ 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;
+ }
+ }
+ 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)
+ {
+ odr_destroy(m_s2z_odr);
+ m_s2z_odr = 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";
+ }
+
+ 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)
+ {
+ m_s2z_odr = odr_createmem(ODR_ENCODE);
+ m_soap_ns = odr_strdup(m_s2z_odr, soap_ns);
+ m_s2z_init_apdu = 0;
+ m_s2z_search_apdu = 0;
+ m_s2z_present_apdu = 0;
+ if (srw_pdu->which == Z_SRW_searchRetrieve_request)
+ {
+ Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
+
+ // 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;
+
+ // prepare search PDU
+ m_s2z_search_apdu = zget_APDU(m_s2z_odr, 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,
+ srw_req->database);
+
+ // query transformation
+ Z_Query *query = (Z_Query *)
+ odr_malloc(odr_encode(), 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));
+ ext->direct_reference =
+ odr_getoidbystr(m_s2z_odr, "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,
+ 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);
+ return;
+ }
+ query->which = Z_Query_type_1;
+ query->u.type_1 = RPNquery;
+
+ yaz_pqf_destroy (pqf_parser);
+ }
+ else
+ {
+ send_to_srw_client_error(11);
+ 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)
+ {
+ if (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,
+ VAL_TEXT_XML);
+ }
+ else // Z39.50 present
+ {
+ m_s2z_present_apdu = zget_APDU(m_s2z_odr,
+ 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,
+ VAL_TEXT_XML);
+ }
+ }
+ if (!m_client)
+ {
+ m_s2z_init_apdu = zget_APDU(m_s2z_odr, Z_APDU_initRequest);
+ handle_incoming_Z_PDU(m_s2z_init_apdu);
+ return;
+ }
+ else
+ {
+ handle_incoming_Z_PDU(m_s2z_search_apdu);
+ return;
+ }
+ }
+ }
+ 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->which == Z_APDU_initRequest)
{
+ if (apdu->u.initRequest->implementationId)
+ yaz_log(LOG_LOG, "%simplementationId: %s",
+ m_session_str, apdu->u.initRequest->implementationId);
+ if (apdu->u.initRequest->implementationName)
+ yaz_log(LOG_LOG, "%simplementationName: %s",
+ m_session_str, apdu->u.initRequest->implementationName);
+ 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());
+ }
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;
if (m_client->m_cookie && *m_client->m_cookie)
set_otherInformationString(apdu, VAL_COOKIE, 1,
m_client->m_cookie);
- send_Z_PDU(apdu);
+ send_to_client(apdu);
return;
}
m_client->m_init_flag = 1;
}
- apdu = result_set_optimize(apdu);
+ handle_max_record_retrieve(apdu);
+
+ if (apdu)
+ apdu = handle_syntax_validation(apdu);
+
+ if (apdu)
+ apdu = handle_query_transformation(apdu);
+
+ if (apdu)
+ apdu = handle_query_validation(apdu);
+
+ if (apdu)
+ apdu = result_set_optimize(apdu);
if (!apdu)
+ {
+ m_client->timeout(m_target_idletime); // mark it active even
+ // though we didn't use it
return;
-
- yaz_log (LOG_LOG, "Sending %s to %s",
- apdu_name(apdu), m_client->get_hostname());
+ }
// delete other info part from PDU before sending to target
- Z_OtherInformation **oi;
get_otherInfoAPDU(apdu, &oi);
if (oi)
*oi = 0;
} else {
m_client->m_resultSetStartPoint = 0;
}
- if (m_client->send_Z_PDU(apdu) < 0)
+ if (m_client->send_to_target(apdu) < 0)
{
delete m_client;
m_client = 0;
void Yaz_Proxy::shutdown()
{
+ m_invalid_session = 0;
// only keep if keep_alive flag is set...
- if (m_keepalive && m_client && m_client->m_waiting == 0)
+ if (m_client &&
+ 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)
{
- yaz_log (LOG_LOG, "shutdown (client to proxy) keepalive %s",
+ yaz_log(LOG_LOG, "%sShutdown (client to proxy) keepalive %s",
+ m_session_str,
m_client->get_hostname());
+ yaz_log(LOG_LOG, "%sbw=%d pdu=%d limit-bw=%d limit-pdu=%d",
+ m_session_str, m_client->m_pdu_recv,
+ m_client->m_bytes_sent + m_client->m_bytes_recv,
+ m_keepalive_limit_bw, m_keepalive_limit_pdu);
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)
{
- yaz_log (LOG_LOG, "shutdown (client to proxy) close %s",
+ yaz_log (LOG_LOG, "%sShutdown (client to proxy) close %s",
+ m_session_str,
m_client->get_hostname());
assert (m_client->m_waiting != 2);
delete m_client;
}
else if (!m_parent)
{
- yaz_log (LOG_LOG, "shutdown (client to proxy) bad state");
+ yaz_log (LOG_LOG, "%sshutdown (client to proxy) bad state",
+ m_session_str);
assert (m_parent);
}
else
{
- yaz_log (LOG_LOG, "shutdown (client to proxy)");
+ yaz_log (LOG_LOG, "%sShutdown (client to proxy)",
+ m_session_str);
}
+ if (m_parent)
+ m_parent->pre_init();
delete this;
}
+const char *Yaz_ProxyClient::get_session_str()
+{
+ if (!m_server)
+ return "0 ";
+ return m_server->get_session_str();
+}
+
void Yaz_ProxyClient::shutdown()
{
- yaz_log (LOG_LOG, "shutdown (proxy to server) %s", get_hostname());
+ yaz_log (LOG_LOG, "%sShutdown (proxy to target) %s", get_session_str(),
+ get_hostname());
delete m_server;
delete this;
}
void Yaz_Proxy::failNotify()
{
- yaz_log (LOG_LOG, "Yaz_Proxy connection closed by client");
+ yaz_log (LOG_LOG, "%sConnection closed by client",
+ get_session_str());
shutdown();
}
void Yaz_ProxyClient::failNotify()
{
- yaz_log (LOG_LOG, "Yaz_ProxyClient connection closed by %s", get_hostname());
+ yaz_log (LOG_LOG, "%sConnection closed by target %s",
+ get_session_str(), get_hostname());
shutdown();
}
void Yaz_ProxyClient::connectNotify()
{
- yaz_log (LOG_LOG, "Connection accepted by %s", get_hostname());
- timeout(600);
+ const char *s = get_session_str();
+ const char *h = get_hostname();
+ yaz_log (LOG_LOG, "%sConnection accepted by %s timeout=%d", s, h,
+ m_target_idletime);
+ timeout(m_target_idletime);
+ if (!m_server)
+ pre_init_client();
}
IYaz_PDU_Observer *Yaz_ProxyClient::sessionNotify(IYaz_PDU_Observable
*the_PDU_Observable, int fd)
{
- return new Yaz_ProxyClient(the_PDU_Observable);
+ return new Yaz_ProxyClient(the_PDU_Observable, 0);
}
Yaz_ProxyClient::~Yaz_ProxyClient()
odr_destroy(m_init_odr);
delete m_last_query;
xfree (m_last_resultSetId);
+ xfree (m_cookie);
+}
+
+void Yaz_ProxyClient::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);
+
+ if (send_to_target(apdu) < 0)
+ {
+ delete this;
+ }
+ else
+ {
+ m_waiting = 1;
+ m_init_flag = 1;
+ }
+}
+
+void Yaz_Proxy::pre_init()
+{
+ int i;
+ const char *name = 0;
+ const char *zurl_in_use[MAX_ZURL_PLEX];
+ int limit_bw, limit_pdu, limit_req;
+ int target_idletime, client_idletime;
+ int max_clients;
+ int keepalive_limit_bw, keepalive_limit_pdu;
+ int pre_init;
+ const char *cql2rpn = 0;
+
+ Yaz_ProxyConfig *cfg = check_reconfigure();
+
+ 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,
+ &cql2rpn) ; i++)
+ {
+ if (pre_init)
+ {
+ int j;
+ for (j = 0; zurl_in_use[j]; j++)
+ {
+ 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()))
+ {
+ if (c->m_cookie == 0)
+ {
+ if (c->m_server == 0)
+ spare++;
+ else
+ in_use++;
+ }
+ else
+ other++;
+ }
+ }
+ 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);
+ c->m_next = m_clientPool;
+ if (c->m_next)
+ c->m_next->m_prev = &c->m_next;
+ 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);
+ delete c;
+ return;
+ }
+ c->timeout(30);
+ c->m_waiting = 1;
+ c->m_target_idletime = target_idletime;
+ c->m_seqno = m_seqno++;
+ }
+ }
+ }
+ }
}
void Yaz_Proxy::timeoutNotify()
{
- yaz_log (LOG_LOG, "timeout (client to proxy)");
- shutdown();
+ if (m_parent)
+ {
+ if (m_bw_hold_PDU)
+ {
+ timeout(m_client_idletime);
+ Z_GDU *apdu = m_bw_hold_PDU;
+ m_bw_hold_PDU = 0;
+
+ 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
+ {
+ yaz_log (LOG_LOG, "%sTimeout (client to proxy)", m_session_str);
+ shutdown();
+ }
+ }
+ else
+ {
+ timeout(600);
+ pre_init();
+ }
}
void Yaz_ProxyClient::timeoutNotify()
{
- yaz_log (LOG_LOG, "timeout (proxy to target) %s", get_hostname());
+ yaz_log (LOG_LOG, "%sTimeout (proxy to target) %s", get_session_str(),
+ get_hostname());
+ m_waiting = 1;
+ m_root->pre_init();
shutdown();
}
-Yaz_ProxyClient::Yaz_ProxyClient(IYaz_PDU_Observable *the_PDU_Observable) :
+Yaz_ProxyClient::Yaz_ProxyClient(IYaz_PDU_Observable *the_PDU_Observable,
+ Yaz_Proxy *parent) :
Yaz_Z_Assoc (the_PDU_Observable)
{
- m_cookie[0] = 0;
+ m_cookie = 0;
m_next = 0;
m_prev = 0;
m_init_flag = 0;
m_init_odr = odr_createmem (ODR_DECODE);
m_initResponse = 0;
m_resultSetStartPoint = 0;
+ m_bytes_sent = m_bytes_recv = 0;
+ m_pdu_recv = 0;
+ m_server = 0;
+ m_seqno = 0;
+ m_target_idletime = 600;
+ m_root = parent;
}
const char *Yaz_Proxy::option(const char *name, const char *value)
return 0;
}
-void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu)
+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, "Receiving %s from %s", apdu_name(apdu),
- get_hostname());
+ 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
+ m_root->pre_init();
NMEM nmem = odr_extract_mem (odr_decode());
odr_reset (m_init_odr);
nmem_transfer (m_init_odr->mem, nmem);
m_initResponse = apdu;
+
+ Z_InitResponse *ir = apdu->u.initResponse;
+ char *im0 = ir->implementationName;
+
+ char *im1 = (char*)
+ odr_malloc(m_init_odr, 20 + (im0 ? strlen(im0) : 0));
+ *im1 = '\0';
+ if (im0)
+ {
+ strcat(im1, im0);
+ strcat(im1, " ");
+ }
+ strcat(im1, "(YAZ Proxy)");
+ 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)
{
sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
apdu = new_apdu;
}
- if (pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
+ if (pr->records &&
+ pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
{
m_cache.add(odr_decode(),
pr->records->u.databaseOrSurDiagnostics,
m_resultSetStartPoint = 0;
}
}
- if (m_cookie && *m_cookie)
+ if (m_cookie)
set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
if (m_server)
{
- yaz_log (LOG_LOG, "Sending %s to client", apdu_name(apdu));
- m_server->send_Z_PDU(apdu);
+ m_server->send_to_client(apdu);
}
if (apdu->which == Z_APDU_close)
{
shutdown();
}
}
+
+int Yaz_Proxy::server(const char *addr)
+{
+ int r = Yaz_Z_Assoc::server(addr);
+ if (!r)
+ {
+ yaz_log(LOG_LOG, "%sStarted listener on %s", m_session_str, addr);
+ timeout(1);
+ }
+ return r;
+}
+
projects / yazpp-moved-to-github.git / blobdiff