-/* $Id: filter_sru_to_z3950.cpp,v 1.11 2006-09-22 11:11:17 marc Exp $
+/* $Id: filter_sru_to_z3950.cpp,v 1.15 2006-09-29 08:42:47 marc Exp $
Copyright (c) 2005-2006, Index Data.
See the LICENSE file for details
#include "package.hpp"
#include "util.hpp"
#include "gduutil.hpp"
+#include "sru_util.hpp"
#include "filter_sru_to_z3950.hpp"
#include <yaz/zgdu.h>
namespace mp = metaproxy_1;
+namespace mp_util = metaproxy_1::util;
namespace yf = mp::filter;
-namespace metaproxy_1
-{
-
- template<typename T>
- std::string to_string(const T& t)
- {
- std::ostringstream o;
- if(o << t)
- return o.str();
-
- return std::string();
- }
-
- std::string http_header_value(const Z_HTTP_Header* header,
- const std::string name)
- {
- while (header && header->name
- && std::string(header->name) != name)
- header = header->next;
-
- if (header && header->name && std::string(header->name) == name
- && header->value)
- return std::string(header->value);
-
- return std::string();
- }
-
-
-}
-
namespace metaproxy_1 {
namespace filter {
const std::string &content,
int http_code = 200) const;
bool build_sru_debug_package(mp::Package &package) const;
+ bool build_simple_explain(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SRW_explainRequest const *er_req)
+ const;
bool build_sru_response(mp::Package &package,
mp::odr &odr_en,
Z_SOAP *soap,
Z_SOAP *&soap,
char *charset,
char *stylesheet) const;
+ bool check_sru_query_exists(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SRW_searchRetrieveRequest
+ const *sr_req) const;
bool z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
const SRW_query &query,
SRW_query_type query_type) const;
Z_SRW_scanRequest
const *sr_req) const;
Z_ElementSetNames * build_esn_from_schema(mp::odr &odr_en, const char *schema) const;
+ int z3950_to_srw_diag(mp::odr &odr_en, Z_SRW_searchRetrieveResponse *srw_res,
+ Z_DefaultDiagFormat *ddf) const;
};
}
}
{
build_sru_response(package, odr_en, soap,
sru_pdu_res, charset, stylesheet);
+ package.session().close();
return;
}
// explain
if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
{
- //Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
- // sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
- std::cout << "TODO: implement explain response";
-
+ Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
+ //sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
+
+ build_simple_explain(package, odr_en, sru_pdu_res, er_req);
}
-
// searchRetrieve
- if (sru_pdu_req && sru_pdu_req->which == Z_SRW_searchRetrieve_request)
+ else if (sru_pdu_req
+ && sru_pdu_req->which == Z_SRW_searchRetrieve_request
+ && sru_pdu_req->u.request)
{
Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
- if (z3950_init_request(package))
+ // checking that we have a query
+ ok = check_sru_query_exists(package, odr_en, sru_pdu_res, sr_req);
+
+ if (ok && z3950_init_request(package))
{
{
ok = z3950_search_request(package, odr_en,
}
// scan
- else if (sru_pdu_req && sru_pdu_req->which == Z_SRW_scan_request)
+ else if (sru_pdu_req
+ && sru_pdu_req->which == Z_SRW_scan_request
+ && sru_pdu_req->u.scan_request)
{
Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
}
+
+bool yf::SRUtoZ3950::Rep::build_simple_explain(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SRW_explainRequest
+ const *er_req) const
+{
+
+ // z3950'fy recordPacking
+ int record_packing = Z_SRW_recordPacking_XML;
+ if (er_req->recordPacking && 's' == *(er_req->recordPacking))
+ record_packing = Z_SRW_recordPacking_string;
+
+ // getting database info
+ std::string database("Default");
+ if (er_req->database)
+ database = er_req->database;
+
+ // building SRU explain record
+ std::string explain_xml
+ = mp_util::to_string(
+ "<explain>\n"
+ " <serverInfo protocol='SRU'>\n"
+ " <host>")
+ + package.origin().server_host()
+ + mp_util::to_string("</host>\n"
+ " <port>")
+ + mp_util::to_string(package.origin().server_port())
+ + mp_util::to_string("</port>\n"
+ " <database>")
+ + database
+ + mp_util::to_string("</database>\n"
+ " </serverInfo>\n"
+ "</explain>\n");
+
+
+ // preparing explain record insert
+ Z_SRW_explainResponse *sru_res = sru_pdu_res->u.explain_response;
+ //sru_res->record
+ // = (Z_SRW_record *) odr_malloc(odr_en, sizeof(Z_SRW_record));
+
+ // inserting one and only explain record
+
+ sru_res->record.recordPosition = odr_intdup(odr_en, 1);
+ sru_res->record.recordPacking = record_packing;
+ sru_res->record.recordSchema = "http://explain.z3950.org/dtd/2.0/";
+ sru_res->record.recordData_len = 1 + explain_xml.size();
+ sru_res->record.recordData_buf
+ = odr_strdupn(odr_en, (const char *)explain_xml.c_str(),
+ 1 + explain_xml.size());
+
+ return true;
+};
+
+
bool yf::SRUtoZ3950::Rep::build_sru_debug_package(mp::Package &package) const
{
Z_GDU *zgdu_req = package.request().get();
}
bool
+yf::SRUtoZ3950::Rep::check_sru_query_exists(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SRW_searchRetrieveRequest
+ const *sr_req)
+ const
+{
+ if( (sr_req->query_type == Z_SRW_query_type_cql && !sr_req->query.cql) )
+ {
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ 7, "query");
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ 10, "CQL query is empty");
+ return false;
+ }
+ if( (sr_req->query_type == Z_SRW_query_type_xcql && !sr_req->query.xcql) )
+ {
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ 10, "XCQL query is empty");
+ return false;
+ }
+ if( (sr_req->query_type == Z_SRW_query_type_pqf && !sr_req->query.pqf) )
+ {
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ 10, "PQF query is empty");
+ return false;
+ }
+ return true;
+};
+
+
+
+bool
yf::SRUtoZ3950::Rep::z3950_init_request(mp::Package &package,
const std::string &database) const
{
const *sr_req) const
{
Package z3950_package(package.session(), package.origin());
- z3950_package.copy_filter(package);
- //mp::odr odr_en(ODR_ENCODE);
- Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
+ z3950_package.copy_filter(package);
//add stuff in z3950 apdu
+ Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
// z3950'fy database
z_searchRequest->num_databaseNames = 1;
z_searchRequest->databaseNames = (char**)
odr_malloc(odr_en, sizeof(char *));
+
if (sr_req->database)
z_searchRequest->databaseNames[0]
= odr_strdup(odr_en, const_cast<char *>(sr_req->database));
return false;
- // no need to work if nobody wants records seen ..
+ // no need to work if nobody wants record ..
if (!(sr_req->maximumRecords) || 0 == *(sr_req->maximumRecords))
return true;
80, 0);
}
+ // start record requested larger than number of records
+ if (sr_req->startRecord
+ && sru_pdu_res->u.response->numberOfRecords
+ && *(sr_req->startRecord) > *(sru_pdu_res->u.response->numberOfRecords))
+ {
+ // = *(sr_req->startRecord);
+ send_z3950_present = false;
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ 61, 0);
+ }
+
// exit on all these above diagnostics
if (!send_z3950_present)
return false;
//std::cout << "z3950_present_request " << *apdu << "\n";
z3950_package.move();
- //TODO: check success condition
+ //check successful Z3950 present response
Z_GDU *z3950_gdu = z3950_package.response().get();
- if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
- && z3950_gdu->u.z3950->which == Z_APDU_presentResponse)
+ if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
+ || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
+ || !z3950_gdu->u.z3950->u.presentResponse)
{
- //std::cout << "z3950_present_request OK\n";
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ 2, 0);
+ package.session().close();
+ return false;
+ }
+
+
+ // everything fine, continuing
+ //std::cout << "z3950_present_request OK\n";
+
+ Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
+ Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
+
+ // checking non surrogate dioagnostics in Z3950 present response package
+ if (pr->records
+ && pr->records->which == Z_Records_NSD
+ && pr->records->u.nonSurrogateDiagnostic)
+ {
+ //int http_code =
+ z3950_to_srw_diag(odr_en, sru_res, pr->records->u.nonSurrogateDiagnostic);
+ return false;
+ }
+
+ // copy all records if existing
+ if (pr->records && pr->records->which == Z_Records_DBOSD)
+ {
+ // srw'fy number of returned records
+ sru_res->num_records
+ = pr->records->u.databaseOrSurDiagnostics->num_records;
+
+ sru_res->records
+ = (Z_SRW_record *) odr_malloc(odr_en,
+ sru_res->num_records *sizeof(Z_SRW_record));
+
+ // srw'fy nextRecordPosition
+ if (pr->nextResultSetPosition)
+ sru_res->nextRecordPosition
+ = odr_intdup(odr_en, *(pr->nextResultSetPosition));
- Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
- if (pr)
+ // inserting all records
+ for (int i = 0; i < sru_res->num_records; i++)
{
- Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
+ Z_NamePlusRecord *npr
+ = pr->records->u.databaseOrSurDiagnostics->records[i];
- // srw'fy nextRecordPosition
- if (pr->nextResultSetPosition)
- sru_res->nextRecordPosition
- = odr_intdup(odr_en, *(pr->nextResultSetPosition));
+ sru_res->records[i].recordPosition
+ = odr_intdup(odr_en, i + *(apdu->u.presentRequest->resultSetStartPoint));
- // = (int *) odr_malloc(odr_en, sizeof(int *));
- //*(sru_res->nextRecordPosition)
- //= *(Pr->nextResultSetPosition);
-
- // copy all records if existing
- if (pr->records && pr->records->which == Z_Records_DBOSD)
+ sru_res->records[i].recordPacking = record_packing;
+
+ if (npr->which != Z_NamePlusRecord_databaseRecord)
{
- // srw'fy number of returned records
- sru_res->num_records
- = pr->records->u.databaseOrSurDiagnostics->num_records;
-
- sru_res->records
- = (Z_SRW_record *)
- odr_malloc(odr_en,
- sru_res->num_records *sizeof(Z_SRW_record));
-
- for (int i = 0; i < sru_res->num_records; i++)
+ sru_res->records[i].recordSchema = "diagnostic";
+ sru_res->records[i].recordData_buf = "67";
+ sru_res->records[i].recordData_len = 2;
+ }
+ else
+ {
+ Z_External *r = npr->u.databaseRecord;
+ oident *ent = oid_getentbyoid(r->direct_reference);
+ if (r->which == Z_External_octet
+ && ent->value == VAL_TEXT_XML)
{
- Z_NamePlusRecord *npr
- = pr->records->u.databaseOrSurDiagnostics->records[i];
-
- sru_res->records[i].recordPosition
- = odr_intdup(odr_en, i + *(apdu->u.presentRequest->resultSetStartPoint));
-
- sru_res->records[i].recordPacking = record_packing;
-
- if (npr->which != Z_NamePlusRecord_databaseRecord)
- {
- sru_res->records[i].recordSchema = "diagnostic";
- sru_res->records[i].recordData_buf = "67";
- sru_res->records[i].recordData_len = 2;
- }
- else
- {
- Z_External *r = npr->u.databaseRecord;
- oident *ent = oid_getentbyoid(r->direct_reference);
- if (r->which == Z_External_octet
- && ent->value == VAL_TEXT_XML)
- {
- sru_res->records[i].recordSchema = "dc";
- sru_res->records[i].recordData_buf
- = odr_strdupn(odr_en,
- (const char *)r->u.octet_aligned->buf,
- r->u.octet_aligned->len);
- sru_res->records[i].recordData_len
- = r->u.octet_aligned->len;
- }
- else
- {
- sru_res->records[i].recordSchema = "diagnostic";
- sru_res->records[i].recordData_buf = "67";
- sru_res->records[i].recordData_len = 2;
- }
- }
-
+ sru_res->records[i].recordSchema = "dc";
+ sru_res->records[i].recordData_buf
+ = odr_strdupn(odr_en,
+ (const char *)r->u.octet_aligned->buf,
+ r->u.octet_aligned->len);
+ sru_res->records[i].recordData_len
+ = r->u.octet_aligned->len;
}
-
-
- }
- }
- return true;
+ else
+ {
+ sru_res->records[i].recordSchema = "diagnostic";
+ sru_res->records[i].recordData_buf = "67";
+ sru_res->records[i].recordData_len = 2;
+ }
+ }
+ }
}
-
- return false;
+
+ return true;
}
bool
const std::string http_method(http_req.method);
const std::string http_type
- = http_header_value(http_req.headers, "Content-Type");
+ = mp_util::http_header_value(http_req.headers, "Content-Type");
if (http_method == "GET")
return "SRU GET";
message += "<b>Path: </b> " + std::string(http_req.path) + "<br/>\n";
message += "<b>Content-Type:</b>"
- + http_header_value(http_req.headers, "Content-Type")
+ + mp_util::http_header_value(http_req.headers, "Content-Type")
+ "<br/>\n";
message += "<b>Content-Length:</b>"
- + http_header_value(http_req.headers, "Content-Length")
+ + mp_util::http_header_value(http_req.headers, "Content-Length")
+ "<br/>\n";
message += "</p>\n";
}
-Z_ElementSetNames * yf::SRUtoZ3950::Rep::build_esn_from_schema(mp::odr &odr_en, const char *schema) const
+Z_ElementSetNames *
+yf::SRUtoZ3950::Rep::build_esn_from_schema(mp::odr &odr_en,
+ const char *schema) const
{
if (!schema)
return 0;
return esn;
}
+int
+yf::SRUtoZ3950::Rep::z3950_to_srw_diag(mp::odr &odr_en,
+ Z_SRW_searchRetrieveResponse *sru_res,
+ Z_DefaultDiagFormat *ddf) const
+{
+ int bib1_code = *ddf->condition;
+ if (bib1_code == 109)
+ return 404;
+ sru_res->num_diagnostics = 1;
+ sru_res->diagnostics = (Z_SRW_diagnostic *)
+ odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
+ yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
+ yaz_diag_bib1_to_srw(*ddf->condition),
+ ddf->u.v2Addinfo);
+ return 0;
+}
+
+
+
static mp::filter::Base* filter_creator()
{
return new mp::filter::SRUtoZ3950;
projects / metaproxy-moved-to-github.git / blobdiff