/*
- * Copyright (c) 1998-2003, Index Data.
+ * Copyright (c) 1998-2004, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.73 2003-12-22 15:16:23 adam Exp $
+ * $Id: yaz-proxy.cpp,v 1.110 2004-03-17 10:49:22 adam Exp $
*/
+#include <unistd.h>
#include <assert.h>
#include <time.h>
+#include <sys/types.h>
+#include <fcntl.h>
#include <yaz/srw.h>
#include <yaz/marcdisp.h>
m_optimize = xstrdup ("1");
strcpy(m_session_str, "0 ");
m_session_no=0;
- m_bytes_sent = m_bytes_recv = 0;
+ m_bytes_sent = 0;
+ m_bytes_recv = 0;
m_bw_hold_PDU = 0;
m_bw_max = 0;
m_pdu_max = 0;
m_config_fname = 0;
m_request_no = 0;
m_invalid_session = 0;
+ m_referenceId = 0;
+ m_referenceId_mem = nmem_create();
m_config = 0;
m_marcxml_flag = 0;
+ m_stylesheet_xsp = 0;
+ m_stylesheet_nprl = 0;
+ m_s2z_stylesheet = 0;
+ m_s2z_database = 0;
+ m_schema = 0;
m_initRequest_apdu = 0;
m_initRequest_mem = 0;
+ m_initRequest_preferredMessageSize = 0;
+ m_initRequest_maximumRecordSize = 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_packing = Z_SRW_recordPacking_string;
m_time_tv.tv_sec = 0;
m_time_tv.tv_usec = 0;
+ if (!m_parent)
+ low_socket_open();
}
Yaz_Proxy::~Yaz_Proxy()
m_bytes_sent, m_bytes_recv);
nmem_destroy(m_initRequest_mem);
nmem_destroy(m_mem_invalid_session);
+ nmem_destroy(m_referenceId_mem);
+
xfree (m_proxyTarget);
xfree (m_default_target);
xfree (m_proxy_authentication);
xfree (m_optimize);
+
+ if (m_stylesheet_xsp)
+ xsltFreeStylesheet(m_stylesheet_xsp);
+
+ 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);
+ if (!m_parent)
+ low_socket_close();
delete m_config;
}
const char *Yaz_Proxy::load_balance(const char **url)
{
int zurl_in_use[MAX_ZURL_PLEX];
+ int zurl_in_spare[MAX_ZURL_PLEX];
Yaz_ProxyClient *c;
int i;
for (i = 0; i<MAX_ZURL_PLEX; i++)
+ {
zurl_in_use[i] = 0;
+ zurl_in_spare[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]++;
+ if (c->m_cookie == 0 && c->m_server == 0 && c->m_waiting == 0)
+ zurl_in_spare[i]++;
+ }
}
- int min = 100000;
- const char *ret = 0;
+ int min_use = 100000;
+ int spare_for_min = 0;
+ int max_spare = 0;
+ const char *ret_min = 0;
+ const char *ret_spare = 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])
+ yaz_log(LOG_DEBUG, "%szurl=%s use=%d spare=%d",
+ m_session_str, url[i], zurl_in_use[i], zurl_in_spare[i]);
+ if (min_use > zurl_in_use[i])
+ {
+ ret_min = url[i];
+ min_use = zurl_in_use[i];
+ spare_for_min = zurl_in_spare[i];
+ }
+ if (max_spare < zurl_in_spare[i])
{
- ret = url[i];
- min = zurl_in_use[i];
+ ret_spare = url[i];
+ max_spare = zurl_in_spare[i];
}
}
- return ret;
+ // use the one with minimum connections if spare is > 3
+ if (spare_for_min > 3)
+ return ret_min;
+ // use one with most spares (if any)
+ if (max_spare > 0)
+ return ret_spare;
+ return ret_min;
}
Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
{
assert (m_parent);
Yaz_Proxy *parent = m_parent;
- Z_OtherInformation **oi;
Yaz_ProxyClient *c = m_client;
if (!m_proxyTarget)
!strcmp(m_proxyTarget, c->get_hostname()))
{
// found it in cache
- yaz_log (LOG_LOG, "%sREUSE %s",
- m_session_str, c->get_hostname());
+ yaz_log (LOG_LOG, "%sREUSE %d %s",
+ m_session_str, parent->m_seqno, c->get_hostname());
c->m_seqno = parent->m_seqno;
assert(c->m_server == 0);
{
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;
c = c_min;
if (c->m_waiting || strcmp(m_proxyTarget, c->get_hostname()))
{
- yaz_log (LOG_LOG, "%sMAXCLIENTS Destroy %d",
- m_session_str, c->m_seqno);
+ yaz_log (LOG_LOG, "%sMAXCLIENTS %d Destroy %d",
+ m_session_str, parent->m_max_clients, c->m_seqno);
if (c->m_server && c->m_server != this)
delete c->m_server;
c->m_server = 0;
}
else
{
- yaz_log (LOG_LOG, "%sMAXCLIENTS Reuse %d %d %s",
- m_session_str,
+ yaz_log (LOG_LOG, "%sMAXCLIENTS %d Reuse %d %d %s",
+ m_session_str, parent->m_max_clients,
c->m_seqno, parent->m_seqno, c->get_hostname());
xfree (c->m_cookie);
c->m_cookie = 0;
}
}
+int Yaz_Proxy::convert_xsl(Z_NamePlusRecordList *p, Z_APDU *apdu)
+{
+ if (!m_stylesheet_xsp || p->num_records <= 0)
+ return 0; /* no XSLT to be done ... */
+
+ m_stylesheet_offset = 0;
+ m_stylesheet_nprl = p;
+ m_stylesheet_apdu = apdu;
+ timeout(0);
+ return 1;
+}
+
+void Yaz_Proxy::convert_xsl_delay()
+{
+ Z_NamePlusRecord *npr = m_stylesheet_nprl->records[m_stylesheet_offset];
+ if (npr->which == Z_NamePlusRecord_databaseRecord)
+ {
+ Z_External *r = npr->u.databaseRecord;
+ if (r->which == Z_External_octet)
+ {
+#if 0
+ fwrite((char*) r->u.octet_aligned->buf, 1, r->u.octet_aligned->len, stdout);
+#endif
+ xmlDocPtr res, doc = xmlParseMemory(
+ (char*) r->u.octet_aligned->buf,
+ r->u.octet_aligned->len);
+
+
+ yaz_log(LOG_LOG, "%sXSLT convert %d",
+ m_session_str, m_stylesheet_offset);
+ res = xsltApplyStylesheet(m_stylesheet_xsp, doc, 0);
+
+ if (res)
+ {
+ xmlChar *out_buf;
+ int out_len;
+ xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
+
+ m_stylesheet_nprl->records[m_stylesheet_offset]->
+ u.databaseRecord =
+ z_ext_record(odr_encode(), VAL_TEXT_XML,
+ (char*) out_buf, out_len);
+ xmlFree(out_buf);
+ xmlFreeDoc(res);
+ }
+
+ xmlFreeDoc(doc);
+ }
+ }
+ m_stylesheet_offset++;
+ if (m_stylesheet_offset == m_stylesheet_nprl->num_records)
+ {
+ m_stylesheet_nprl = 0;
+ if (m_stylesheet_xsp)
+ xsltFreeStylesheet(m_stylesheet_xsp);
+ m_stylesheet_xsp = 0;
+ timeout(m_client_idletime);
+ send_PDU_convert(m_stylesheet_apdu);
+ }
+ else
+ timeout(0);
+}
+
void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p)
{
int i;
+ yaz_iconv_t cd = yaz_iconv_open("UTF-8", "MARC-8");
yaz_marc_t mt = yaz_marc_create();
yaz_marc_xml(mt, YAZ_MARC_MARCXML);
+ yaz_marc_iconv(mt, cd);
for (i = 0; i < p->num_records; i++)
{
Z_NamePlusRecord *npr = p->records[i];
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);
+ result, rlen);
}
}
}
}
+ if (cd)
+ yaz_iconv_close(cd);
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);
- m_http_keepalive = 0;
+ if (m_http_keepalive)
+ z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
+ else
+ timeout(0);
+
if (m_log_mask & PROXY_LOG_REQ_CLIENT)
{
yaz_log (LOG_LOG, "%sSending %s to client", m_session_str,
}
int len;
int r = send_GDU(gdu, &len);
+ m_bytes_sent += len;
+ m_bw_stat.add_bytes(len);
logtime();
return r;
}
z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
if (m_http_keepalive)
z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
+ else
+ timeout(0);
static Z_SOAP_Handler soap_handlers[2] = {
-#if HAVE_XML2
+#if HAVE_XSLT
{"http://www.loc.gov/zing/srw/", 0,
(Z_SOAP_fun) yaz_srw_codec},
#endif
soap_package->u.generic->ns = soap_handlers[0].ns;
soap_package->u.generic->p = (void *) srw_pdu;
soap_package->ns = m_soap_ns;
- int ret = z_soap_codec_enc(o, &soap_package,
- &hres->content_buf, &hres->content_len,
- soap_handlers, 0);
+ z_soap_codec_enc_xsl(o, &soap_package,
+ &hres->content_buf, &hres->content_len,
+ soap_handlers, 0, m_s2z_stylesheet);
if (m_log_mask & PROXY_LOG_REQ_CLIENT)
{
yaz_log (LOG_LOG, "%sSending %s to client", m_session_str,
}
int len;
int r = send_GDU(gdu, &len);
+ m_bytes_sent += len;
+ m_bw_stat.add_bytes(len);
logtime();
return r;
}
-int Yaz_Proxy::send_to_srw_client_error(int srw_error)
+int Yaz_Proxy::send_to_srw_client_error(int srw_error, const char *add)
{
ODR o = odr_encode();
Z_SRW_PDU *srw_pdu = yaz_srw_get(o, Z_SRW_searchRetrieve_response);
srw_res->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;
+ yaz_mk_std_diagnostic(o, srw_res->diagnostics, srw_error, add);
return send_srw_response(srw_pdu);
}
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;
+ yaz_mk_std_diagnostic(o, srw_res->diagnostics,
+ yaz_diag_bib1_to_srw(*ddf->condition),
+ ddf->u.v2Addinfo);
return 0;
}
oident *ent = oid_getentbyoid(r->direct_reference);
if (r->which == Z_External_octet && ent->value == VAL_TEXT_XML)
{
- srw_res->records[i].recordSchema = "http://www.loc.gov/marcxml/";
+ srw_res->records[i].recordSchema = m_schema;
srw_res->records[i].recordPacking = m_s2z_packing;
srw_res->records[i].recordData_buf = (char*)
r->u.octet_aligned->buf;
}
-int Yaz_Proxy::send_srw_explain()
+int Yaz_Proxy::send_srw_explain_response(Z_SRW_diagnostic *diagnostics,
+ int num_diagnostics)
{
- Z_SRW_PDU *res = yaz_srw_get(odr_encode(), Z_SRW_explain_response);
- Z_SRW_explainResponse *er = res->u.explain_response;
-
Yaz_ProxyConfig *cfg = check_reconfigure();
if (cfg)
{
int len;
- assert (m_proxyTarget);
char *b = cfg->get_explain(odr_encode(), 0 /* target */,
- 0 /* db */, &len);
+ 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->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
+
+ er->diagnostics = diagnostics;
+ er->num_diagnostics = num_diagnostics;
+ return send_srw_response(res);
}
}
- return send_srw_response(res);
+ return send_http_response(404);
}
-int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu, int *len)
+int Yaz_Proxy::send_PDU_convert(Z_APDU *apdu)
{
if (m_http_version)
{
Z_InitResponse *res = apdu->u.initResponse;
if (*res->result == 0)
{
- send_to_srw_client_error(3);
+ send_to_srw_client_error(3, 0);
}
else if (!m_s2z_search_apdu)
{
- send_srw_explain();
+ send_srw_explain_response(0, 0);
}
else
{
{
send_to_srw_client_ok(0, res->records, 1);
}
- else if (m_s2z_present_apdu)
+ 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
{
+ int len = 0;
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);
+ int r = send_Z_PDU(apdu, &len);
+ m_bytes_sent += len;
+ m_bw_stat.add_bytes(len);
logtime();
return r;
}
int Yaz_Proxy::send_to_client(Z_APDU *apdu)
{
- int len = 0;
int kill_session = 0;
+ Z_ReferenceId **new_id = get_referenceIdP(apdu);
+
+ if (new_id)
+ *new_id = m_referenceId;
+
if (apdu->which == Z_APDU_searchResponse)
{
Z_SearchResponse *sr = apdu->u.searchResponse;
}
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);
+ if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
+ return 0;
+
+ }
if (sr->resultCount)
{
yaz_log(LOG_LOG, "%s%d hits", m_session_str,
*sr->presentStatus = Z_PresentStatus_failure;
display_diagrecs(&dr_p, 1);
}
- if (m_marcxml_flag && p && p->which == Z_Records_DBOSD)
- convert_to_marcxml(p->u.databaseOrSurDiagnostics);
+ if (p && p->which == Z_Records_DBOSD)
+ {
+ if (m_marcxml_flag)
+ convert_to_marcxml(p->u.databaseOrSurDiagnostics);
+ if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu))
+ return 0;
+ }
}
- int r = send_PDU_convert(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;
+ }
+ apdu->u.initResponse->preferredMessageSize =
+ odr_intdup(odr_encode(),
+ m_client->m_initResponse_preferredMessageSize >
+ m_initRequest_preferredMessageSize ?
+ m_initRequest_preferredMessageSize :
+ m_client->m_initResponse_preferredMessageSize);
+ apdu->u.initResponse->maximumRecordSize =
+ odr_intdup(odr_encode(),
+ m_client->m_initResponse_maximumRecordSize >
+ m_initRequest_maximumRecordSize ?
+ m_initRequest_maximumRecordSize :
+ m_client->m_initResponse_maximumRecordSize);
+ }
+ int r = send_PDU_convert(apdu);
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);
if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
yaz_log (LOG_LOG, "%sSending %s to %s %d bytes",
get_session_str(),
- apdu_name(apdu), get_hostname(), len);
+ apdu_name_tmp, get_hostname(), len);
m_bytes_sent += len;
return r;
}
m_bytes_recv += len;
- if (m_log_mask & PROXY_LOG_APDU_CLIENT)
- yaz_log (LOG_DEBUG, "%sReceiving %s from client %d bytes",
+ if (m_log_mask & PROXY_LOG_REQ_CLIENT)
+ yaz_log (LOG_LOG, "%sReceiving %s from client %d bytes",
m_session_str, gdu_name(apdu), len);
if (m_bw_hold_PDU) // double incoming PDU. shutdown now.
{
Z_RPNQuery *rpnquery = 0;
Z_SearchRequest *sr = apdu->u.searchRequest;
+ char *addinfo = 0;
yaz_log(LOG_LOG, "%sCQL: %s", m_session_str,
sr->query->u.type_104->u.cql);
int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
- &rpnquery, odr_encode());
+ &rpnquery, odr_encode(),
+ &addinfo);
if (r == -3)
yaz_log(LOG_LOG, "%sNo CQL to RPN table", m_session_str);
else if (r)
+ {
yaz_log(LOG_LOG, "%sCQL Conversion error %d", m_session_str, r);
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
+
+ new_apdu->u.searchResponse->referenceId = sr->referenceId;
+ new_apdu->u.searchResponse->records =
+ create_nonSurrogateDiagnostics(odr_encode(),
+ yaz_diag_srw_to_bib1(r),
+ addinfo);
+ *new_apdu->u.searchResponse->searchStatus = 0;
+
+ send_to_client(new_apdu);
+
+ return 0;
+ }
else
{
sr->query->which = Z_Query_type_1;
int err = 0;
char *addinfo = 0;
Yaz_ProxyConfig *cfg = check_reconfigure();
-
+
+ Z_RecordComposition rc_temp, *rc = 0;
+ if (sr->smallSetElementSetNames)
+ {
+ rc_temp.which = Z_RecordComp_simple;
+ rc_temp.u.simple = sr->smallSetElementSetNames;
+ rc = &rc_temp;
+ }
+
+ char *stylesheet_name = 0;
if (cfg)
err = cfg->check_syntax(odr_encode(),
m_default_target,
- sr->preferredRecordSyntax,
- &addinfo);
+ sr->preferredRecordSyntax, rc,
+ &addinfo, &stylesheet_name, &m_schema);
+ if (stylesheet_name)
+ {
+ m_parent->low_socket_close();
+
+ if (m_stylesheet_xsp)
+ xsltFreeStylesheet(m_stylesheet_xsp);
+
+ m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
+ stylesheet_name);
+ m_stylesheet_offset = 0;
+ xfree(stylesheet_name);
+
+ m_parent->low_socket_open();
+ }
if (err == -1)
{
sr->preferredRecordSyntax =
- yaz_oidval_to_z3950oid(odr_decode(), CLASS_RECSYN,
- VAL_USMARC);
+ yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN, VAL_USMARC);
m_marcxml_flag = 1;
}
else if (err)
char *addinfo = 0;
Yaz_ProxyConfig *cfg = check_reconfigure();
+ char *stylesheet_name = 0;
if (cfg)
err = cfg->check_syntax(odr_encode(), m_default_target,
pr->preferredRecordSyntax,
- &addinfo);
+ pr->recordComposition,
+ &addinfo, &stylesheet_name, &m_schema);
+ if (stylesheet_name)
+ {
+ m_parent->low_socket_close();
+
+ if (m_stylesheet_xsp)
+ xsltFreeStylesheet(m_stylesheet_xsp);
+
+ m_stylesheet_xsp = xsltParseStylesheetFile((const xmlChar*)
+ stylesheet_name);
+ m_stylesheet_offset = 0;
+ xfree(stylesheet_name);
+
+ m_parent->low_socket_open();
+ }
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;
}
+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)
{
- Z_SRW_PDU *srw_pdu = 0;
- char *soap_ns = 0;
if (m_s2z_odr_init)
{
odr_destroy(m_s2z_odr_init);
m_http_version = "1.1";
}
- if (yaz_check_for_srw(hreq, &srw_pdu, &soap_ns, odr_decode()) == 0
- || yaz_check_for_sru(hreq, &srw_pdu, &soap_ns, odr_decode()) == 0)
+ Z_SRW_PDU *srw_pdu = 0;
+ Z_SOAP *soap_package = 0;
+ char *charset = 0;
+ Z_SRW_diagnostic *diagnostic = 0;
+ int num_diagnostic = 0;
+ if (yaz_srw_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
+ &charset) == 0
+ || yaz_sru_decode(hreq, &srw_pdu, &soap_package, odr_decode(),
+ &charset, &diagnostic, &num_diagnostic) == 0)
{
m_s2z_odr_init = odr_createmem(ODR_ENCODE);
m_s2z_odr_search = odr_createmem(ODR_ENCODE);
- m_soap_ns = odr_strdup(m_s2z_odr_search, soap_ns);
+ m_soap_ns = odr_strdup(m_s2z_odr_search, soap_package->ns);
m_s2z_init_apdu = 0;
m_s2z_search_apdu = 0;
m_s2z_present_apdu = 0;
+
+ m_s2z_stylesheet = 0;
+
if (srw_pdu->which == Z_SRW_searchRetrieve_request)
{
Z_SRW_searchRetrieveRequest *srw_req = srw_pdu->u.request;
+ m_s2z_database = odr_strdup(m_s2z_odr_init, srw_req->database);
+ // recordXPath unsupported.
+ if (srw_req->recordXPath)
+ {
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 72, 0);
+ }
+ // must have a query
+ if (!srw_req->query.cql)
+ {
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 7, "query");
+ }
+ // sort unsupported
+ if (srw_req->sort_type != Z_SRW_sort_type_none)
+ {
+ yaz_add_srw_diagnostic(odr_decode(),
+ &diagnostic, &num_diagnostic,
+ 80, 0);
+ }
+ // save stylesheet
+ if (srw_req->stylesheet)
+ m_s2z_stylesheet =
+ odr_strdup(m_s2z_odr_init, srw_req->stylesheet);
+
// set packing for response records ..
if (srw_req->recordPacking &&
!strcmp(srw_req->recordPacking, "xml"))
else
m_s2z_packing = Z_SRW_recordPacking_string;
+ if (num_diagnostic)
+ {
+ Z_SRW_PDU *srw_pdu =
+ yaz_srw_get(odr_encode(),
+ Z_SRW_searchRetrieve_response);
+ Z_SRW_searchRetrieveResponse *srw_res = srw_pdu->u.response;
+
+ srw_res->diagnostics = diagnostic;
+ srw_res->num_diagnostics = num_diagnostic;
+ send_srw_response(srw_pdu);
+ return;
+ }
+
// prepare search PDU
m_s2z_search_apdu = zget_APDU(m_s2z_odr_search,
Z_APDU_searchRequest);
yaz_log(LOG_LOG, "%*s^\n", off+4, "");
yaz_log(LOG_LOG, "Bad PQF: %s (code %d)\n", pqf_msg, code);
- send_to_srw_client_error(10);
+ send_to_srw_client_error(10, 0);
return;
}
query->which = Z_Query_type_1;
}
else
{
- send_to_srw_client_error(11);
+ send_to_srw_client_error(7, "query");
return;
}
start = *srw_req->startRecord;
if (max > 0)
{
- if (start <= 1) // Z39.50 piggyback
+ // Some backend, such as Voyager doesn't honor piggyback
+ // So we use present always (0 &&).
+ if (0 && start <= 1) // Z39.50 piggyback
{
*z_searchRequest->smallSetUpperBound = max;
*z_searchRequest->mediumSetPresentNumber = max;
*z_searchRequest->largeSetLowerBound = 2000000000; // 2e9
+
z_searchRequest->preferredRecordSyntax =
yaz_oidval_to_z3950oid(m_s2z_odr_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
{
z_presentRequest->preferredRecordSyntax =
yaz_oidval_to_z3950oid(m_s2z_odr_search, CLASS_RECSYN,
VAL_TEXT_XML);
+ if (srw_req->recordSchema)
+ {
+ z_presentRequest->recordComposition =
+ (Z_RecordComposition *)
+ odr_malloc(m_s2z_odr_search,
+ sizeof(Z_RecordComposition));
+ 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)
{
- yaz_log(LOG_LOG, "handle_incoming: initRequest");
m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
Z_APDU_initRequest);
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)
{
- yaz_log(LOG_LOG, "handle_incoming: initRequest");
m_s2z_init_apdu = zget_APDU(m_s2z_odr_init,
Z_APDU_initRequest);
handle_incoming_Z_PDU(m_s2z_init_apdu);
}
else
- send_srw_explain();
+ 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);
+ timeout(0);
send_GDU(p, &len);
- timeout(1);
}
void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu)
{
+ Z_ReferenceId **refid = get_referenceIdP(apdu);
+ nmem_reset(m_referenceId_mem);
+ if (refid && *refid)
+ {
+ m_referenceId = (Z_ReferenceId *)
+ nmem_malloc(m_referenceId_mem, sizeof(*m_referenceId));
+ m_referenceId->len = m_referenceId->size = (*refid)->len;
+ m_referenceId->buf = (unsigned char *)
+ nmem_malloc(m_referenceId_mem, (*refid)->len);
+ memcpy(m_referenceId->buf, (*refid)->buf, (*refid)->len);
+ }
+ else
+ m_referenceId = 0;
+
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.
Z_OtherInformation **oi;
get_otherInfoAPDU(apdu, &oi);
nmem_destroy(m_initRequest_mem);
m_initRequest_apdu = apdu;
m_initRequest_mem = odr_extract_mem(odr_decode());
+
+ m_initRequest_preferredMessageSize = *apdu->u.initRequest->
+ preferredMessageSize;
+ *apdu->u.initRequest->preferredMessageSize = 1024*1024;
+ m_initRequest_maximumRecordSize = *apdu->u.initRequest->
+ maximumRecordSize;
+ *apdu->u.initRequest->maximumRecordSize = 1024*1024;
+
+ // 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);
+ ODR_MASK_CLEAR(apdu->u.initRequest->options,
+ Z_Options_concurrentOperations);
+
+ // make new version
+ m_initRequest_version = apdu->u.initRequest->protocolVersion;
+ apdu->u.initRequest->protocolVersion =
+ (Odr_bitmask *)nmem_malloc(m_initRequest_mem,
+ sizeof(Odr_bitmask));
+ ODR_MASK_ZERO(apdu->u.initRequest->protocolVersion);
+
+ for (i = 0; i<= 8; i++)
+ ODR_MASK_SET(apdu->u.initRequest->protocolVersion, i);
}
if (m_client->m_init_flag)
{
if (handle_init_response_for_invalid_session(apdu))
return;
- Z_APDU *apdu2 = m_client->m_initResponse;
- apdu2->u.initResponse->otherInfo = 0;
- if (m_client->m_cookie && *m_client->m_cookie)
- set_otherInformationString(apdu2, VAL_COOKIE, 1,
- m_client->m_cookie);
- apdu2->u.initResponse->referenceId =
- apdu->u.initRequest->referenceId;
- send_to_client(apdu2);
- return;
+ if (m_client->m_initResponse)
+ {
+ Z_APDU *apdu2 = m_client->m_initResponse;
+ apdu2->u.initResponse->otherInfo = 0;
+ if (m_client->m_cookie && *m_client->m_cookie)
+ set_otherInformationString(apdu2, VAL_COOKIE, 1,
+ m_client->m_cookie);
+ 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;
}
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);
+ ODR_MASK_CLEAR(apdu->u.initRequest->options,
+ Z_Options_concurrentOperations);
+ for (i = 0; i<= 10; i++)
+ ODR_MASK_SET(req->protocolVersion, i);
+
if (send_to_target(apdu) < 0)
{
delete this;
int keepalive_limit_bw, keepalive_limit_pdu;
int pre_init;
const char *cql2rpn = 0;
- const char *zeerex = 0;
Yaz_ProxyConfig *cfg = check_reconfigure();
{
Yaz_ProxyClient *c;
int spare = 0;
+ int spare_waiting = 0;
int in_use = 0;
int other = 0;
for (c = m_clientPool; c; c = c->m_next)
if (c->m_cookie == 0)
{
if (c->m_server == 0)
- spare++;
+ if (c->m_waiting)
+ spare_waiting++;
+ else
+ spare++;
else
in_use++;
}
}
}
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)
+ "sparew=%d preinit=%d",m_session_str,
+ name, zurl_in_use[j], in_use, other,
+ spare, spare_waiting, pre_init);
+ if (spare + spare_waiting < pre_init)
{
c = new Yaz_ProxyClient(m_PDU_Observable->clone(), this);
c->m_next = m_clientPool;
else if (apdu->which == Z_GDU_HTTP_Request)
handle_incoming_HTTP(apdu->u.HTTP_Request);
}
+ else if (m_stylesheet_nprl)
+ convert_xsl_delay();
else
{
inc_request_no();
}
}
+void Yaz_Proxy::markInvalid()
+{
+ m_client = 0;
+ m_invalid_session = 1;
+}
+
void Yaz_ProxyClient::timeoutNotify()
{
if (m_server)
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_initResponse_preferredMessageSize = 0;
+ m_initResponse_maximumRecordSize = 0;
m_resultSetStartPoint = 0;
m_bytes_sent = m_bytes_recv = 0;
m_pdu_recv = 0;
void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
{
m_bytes_recv += len;
+
m_pdu_recv++;
m_waiting = 0;
if (m_root->get_log_mask() & PROXY_LOG_REQ_SERVER)
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;
+ m_initResponse_preferredMessageSize =
+ *apdu->u.initResponse->preferredMessageSize;
+ m_initResponse_maximumRecordSize =
+ *apdu->u.initResponse->maximumRecordSize;
Z_InitResponse *ir = apdu->u.initResponse;
char *im0 = ir->implementationName;
}
}
+void Yaz_Proxy::low_socket_close()
+{
+ int i;
+ for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
+ if (m_lo_fd[i] >= 0)
+ ::close(m_lo_fd[i]);
+}
+
+void Yaz_Proxy::low_socket_open()
+{
+ int i;
+ for (i = 0; i<NO_SPARE_SOLARIS_FD; i++)
+ m_lo_fd[i] = open("/dev/null", O_RDONLY);
+}
+
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);
+ yaz_log(LOG_LOG, "%sStarted proxy " VERSION " on %s", m_session_str, addr);
timeout(1);
}
return r;
projects / yazpp-moved-to-github.git / blobdiff