* Copyright (c) 1998-2003, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.70 2003-11-08 18:51:10 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>
static const char *apdu_name(Z_APDU *apdu)
{
return "other";
}
+static const char *gdu_name(Z_GDU *gdu)
+{
+ switch(gdu->which)
+ {
+ case Z_GDU_Z3950:
+ return apdu_name(gdu->u.z3950);
+ case Z_GDU_HTTP_Request:
+ return "HTTP Request";
+ case Z_GDU_HTTP_Response:
+ return "HTTP Response";
+ }
+ return "Unknown request/response";
+}
+
Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable,
Yaz_Proxy *parent) :
Yaz_Z_Assoc(the_PDU_Observable), m_bw_stat(60), m_pdu_stat(60)
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;
}
return ret;
}
-Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu)
+Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie,
+ const char *proxy_host)
{
assert (m_parent);
Yaz_Proxy *parent = m_parent;
Z_OtherInformation **oi;
Yaz_ProxyClient *c = m_client;
- get_otherInfoAPDU(apdu, &oi);
- char *cookie = get_cookie(oi);
-
if (!m_proxyTarget)
{
const char *url[MAX_ZURL_PLEX];
- const char *proxy_host = get_proxy(oi);
Yaz_ProxyConfig *cfg = check_reconfigure();
if (proxy_host)
{
-#if 0
+#if 1
/* only to be enabled for debugging... */
if (!strcmp(proxy_host, "stop"))
exit(0);
proxy_host = m_default_target;
}
int client_idletime = -1;
+ const char *cql2rpn_fname = 0;
url[0] = m_default_target;
url[1] = 0;
if (cfg)
&parent->m_max_clients,
&m_keepalive_limit_bw,
&m_keepalive_limit_pdu,
- &pre_init);
+ &pre_init,
+ &cql2rpn_fname);
}
if (client_idletime != -1)
{
m_client_idletime = client_idletime;
timeout(m_client_idletime);
}
+ if (cql2rpn_fname)
+ {
+ 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);
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;
dr.which = Z_DiagRec_defaultFormat;
dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
+ *sr->searchStatus = 0;
display_diagrecs(&dr_p, 1);
}
else
yaz_log(LOG_LOG, "%s%d hits", m_session_str,
*sr->resultCount);
if (*sr->resultCount < 0)
+ {
m_invalid_session = 1;
+ kill_session = 1;
+
+ *sr->searchStatus = 0;
+ sr->records =
+ create_nonSurrogateDiagnostics(odr_encode(), 2, 0);
+ *sr->resultCount = 0;
+ }
}
}
}
Z_DiagRec dr, *dr_p = &dr;
dr.which = Z_DiagRec_defaultFormat;
dr.u.defaultFormat = p->u.nonSurrogateDiagnostic;
-
+ if (*sr->presentStatus == Z_PresentStatus_success)
+ *sr->presentStatus = Z_PresentStatus_failure;
display_diagrecs(&dr_p, 1);
}
if (m_marcxml_flag && p && p->which == Z_Records_DBOSD)
convert_to_marcxml(p->u.databaseOrSurDiagnostics);
}
- int r = send_Z_PDU(apdu, &len);
+ 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;
}
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)
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))
return 0;
}
}
-#endif
}
if (apdu->which != Z_APDU_searchRequest)
}
-void Yaz_Proxy::recv_Z_PDU(Z_APDU *apdu, int len)
+void Yaz_Proxy::recv_GDU(Z_GDU *apdu, int len)
{
char *cp = strchr(m_session_str, ' ');
m_request_no++;
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);
+ m_session_str, gdu_name(apdu), len);
if (m_bw_hold_PDU) // double incoming PDU. shutdown now.
shutdown();
m_bw_hold_PDU = apdu; // save PDU and signal "on hold"
timeout(reduce); // call us reduce seconds later
}
- else
- recv_Z_PDU_0(apdu); // all fine. Proceed receive PDU as usual
+ else if (apdu->which == Z_GDU_Z3950)
+ handle_incoming_Z_PDU(apdu->u.z3950);
+ else if (apdu->which == Z_GDU_HTTP_Request)
+ handle_incoming_HTTP(apdu->u.HTTP_Request);
}
void Yaz_Proxy::handle_max_record_retrieve(Z_APDU *apdu)
return rec;
}
+Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu)
+{
+ if (apdu->which == Z_APDU_searchRequest &&
+ apdu->u.searchRequest->query &&
+ apdu->u.searchRequest->query->which == Z_Query_type_104 &&
+ apdu->u.searchRequest->query->u.type_104->which == Z_External_CQL)
+ {
+ Z_RPNQuery *rpnquery = 0;
+ Z_SearchRequest *sr = apdu->u.searchRequest;
+
+ 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)
return apdu;
}
-void Yaz_Proxy::recv_Z_PDU_0(Z_APDU *apdu)
+static int hex_digit (int ch)
+{
+ if (ch >= '0' && ch <= '9')
+ return ch - '0';
+ else if (ch >= 'a' && ch <= 'f')
+ return ch - 'a'+10;
+ else if (ch >= 'A' && ch <= 'F')
+ return ch - 'A'+10;
+ return 0;
+}
+
+static char *uri_val(const char *path, const char *name, ODR o)
+{
+ 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->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)
apdu = handle_syntax_validation(apdu);
if (apdu)
+ apdu = handle_query_transformation(apdu);
+
+ if (apdu)
apdu = handle_query_validation(apdu);
if (apdu)
}
// delete other info part from PDU before sending to target
- Z_OtherInformation **oi;
get_otherInfoAPDU(apdu, &oi);
if (oi)
*oi = 0;
void Yaz_Proxy::shutdown()
{
+ m_invalid_session = 0;
// only keep if keep_alive flag is set...
if (m_client &&
- !m_invalid_session &&
m_client->m_pdu_recv < m_keepalive_limit_pdu &&
m_client->m_bytes_recv+m_client->m_bytes_sent < m_keepalive_limit_bw &&
m_client->m_waiting == 0)
assert (m_client->m_waiting != 2);
// Tell client (if any) that no server connection is there..
m_client->m_server = 0;
+ m_invalid_session = 0;
}
else if (m_client)
{
int max_clients;
int keepalive_limit_bw, keepalive_limit_pdu;
int pre_init;
+ const char *cql2rpn = 0;
Yaz_ProxyConfig *cfg = check_reconfigure();
&max_clients,
&keepalive_limit_bw,
&keepalive_limit_pdu,
- &pre_init) ; i++)
+ &pre_init,
+ &cql2rpn) ; i++)
{
if (pre_init)
{
if (m_bw_hold_PDU)
{
timeout(m_client_idletime);
- Z_APDU *apdu = m_bw_hold_PDU;
+ Z_GDU *apdu = m_bw_hold_PDU;
m_bw_hold_PDU = 0;
- recv_Z_PDU_0(apdu);
+
+ if (apdu->which == Z_GDU_Z3950)
+ handle_incoming_Z_PDU(apdu->u.z3950);
+ else if (apdu->which == Z_GDU_HTTP_Request)
+ handle_incoming_HTTP(apdu->u.HTTP_Request);
}
else
{
return 0;
}
+void Yaz_ProxyClient::recv_HTTP_response(Z_HTTP_Response *apdu, int len)
+{
+
+}
+
+void Yaz_ProxyClient::recv_GDU(Z_GDU *apdu, int len)
+{
+ if (apdu->which == Z_GDU_Z3950)
+ recv_Z_PDU(apdu->u.z3950, len);
+ else if (apdu->which == Z_GDU_HTTP_Response)
+ recv_HTTP_response(apdu->u.HTTP_Response, len);
+ else
+ shutdown();
+}
+
+int Yaz_Proxy::handle_init_response_for_invalid_session(Z_APDU *apdu)
+{
+ if (!m_invalid_session)
+ return 0;
+ m_invalid_session = 0;
+ handle_incoming_Z_PDU(m_apdu_invalid_session);
+ assert (m_mem_invalid_session);
+ nmem_destroy(m_mem_invalid_session);
+ m_mem_invalid_session = 0;
+ return 1;
+}
+
void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu, int len)
{
m_bytes_recv += len;
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)
{
projects / yazpp-moved-to-github.git / blobdiff