-/* $Id: sru_util.cpp,v 1.2 2006-10-02 13:44:48 marc Exp $
- Copyright (c) 2005-2006, Index Data.
+/* $Id: sru_util.cpp,v 1.7 2007-01-25 14:05:54 adam Exp $
+ Copyright (c) 2005-2007, Index Data.
See the LICENSE file for details
*/
// Doxygen doesn't like mp::gdu, so we use this instead
namespace mp_util = metaproxy_1::util;
+const std::string xmlns_explain("http://explain.z3950.org/dtd/2.0/");
-mp_util::SRU::SRU_protocol_type
-mp_util::SRU::protocol(const Z_HTTP_Request &http_req) const
+bool mp_util::build_sru_debug_package(mp::Package &package)
{
- const std::string mime_urlencoded("application/x-www-form-urlencoded");
- const std::string mime_text_xml("text/xml");
- const std::string mime_soap_xml("application/soap+xml");
+ Z_GDU *zgdu_req = package.request().get();
+ if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
+ {
+ Z_HTTP_Request* http_req = zgdu_req->u.HTTP_Request;
+ std::string content = mp_util::http_headers_debug(*http_req);
+ int http_code = 400;
+ mp_util::http_response(package, content, http_code);
+ return true;
+ }
+ package.session().close();
+ return false;
+}
+
+mp_util::SRUServerInfo mp_util::get_sru_server_info(mp::Package &package)
+ //Z_SRW_explainRequest const *er_req)
+{
+ mp_util::SRUServerInfo sruinfo;
+
+ // getting database info
+ //if (er_req && er_req->database)
+ // sruinfo.database = er_req->database;
+
+ // getting host and port info
+ sruinfo.host = package.origin().listen_host();
+ sruinfo.port = mp_util::to_string(package.origin().listen_port());
- const std::string http_method(http_req.method);
- const std::string http_type
- = mp_util::http_header_value(http_req.headers, "Content-Type");
+ // overwriting host and port info if set from HTTP Host header
+ Z_GDU *zgdu_req = package.request().get();
+ if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
+ {
+ Z_HTTP_Request* http_req = zgdu_req->u.HTTP_Request;
+ if (http_req)
+ {
+
+ //std::string http_method = http_req->method;
+ //std::string http_version = http_req->version;
+ std::string http_path = http_req->path;
+ if (http_path.size() > 1)
+ sruinfo.database.assign(http_path, 1, std::string::npos);
- if (http_method == "GET")
- return SRU_GET;
+ std::string http_host_address
+ = mp_util::http_header_value(http_req->headers, "Host");
- if (http_method == "POST"
- && http_type == mime_urlencoded)
- return SRU_POST;
+ std::string::size_type i = http_host_address.rfind(":");
+ if (i != std::string::npos)
+ {
+ sruinfo.host.assign(http_host_address, 0, i);
+ sruinfo.port.assign(http_host_address, i + 1,
+ std::string::npos);
+ }
+ }
+ }
- if ( http_method == "POST"
- && (http_type == mime_text_xml
- || http_type == mime_soap_xml))
- return SRU_SOAP;
+ //std::cout << "sruinfo.database " << sruinfo.database << "\n";
+ //std::cout << "sruinfo.host " << sruinfo.host << "\n";
+ //std::cout << "sruinfo.port " << sruinfo.port << "\n";
- return SRU_NONE;
+ return sruinfo;
+}
+
+
+// bool mp_util::build_simple_explain(mp::Package &package,
+// mp::odr &odr_en,
+// Z_SRW_PDU *sru_pdu_res,
+// SRUServerInfo sruinfo,
+// Z_SRW_explainRequest const *er_req)
+// {
+// // z3950'fy recordPacking
+// int record_packing = Z_SRW_recordPacking_XML;
+// if (er_req && er_req->recordPacking && 's' == *(er_req->recordPacking))
+// record_packing = Z_SRW_recordPacking_string;
+
+// // building SRU explain record
+// std::string explain_xml
+// = mp_util::to_string(
+// "<explain xmlns=\"" + xmlns_explain + "\">\n"
+// " <serverInfo protocol='SRU'>\n"
+// " <host>")
+// + sruinfo.host
+// + mp_util::to_string("</host>\n"
+// " <port>")
+// + sruinfo.port
+// + mp_util::to_string("</port>\n"
+// " <database>")
+// + sruinfo.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;
+
+// // 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 = (char *)xmlns_explain.c_str();
+// 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 mp_util::build_sru_explain(metaproxy_1::Package &package,
+ metaproxy_1::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ SRUServerInfo sruinfo,
+ const xmlNode *explain,
+ Z_SRW_explainRequest const *er_req)
+{
+
+ // building SRU explain record
+ std::string explain_xml;
+
+ if (explain == 0){
+ explain_xml
+ = mp_util::to_string(
+ "<explain xmlns=\"" + xmlns_explain + "\">\n"
+ " <serverInfo protocol='SRU'>\n"
+ " <host>")
+ + sruinfo.host
+ + mp_util::to_string("</host>\n"
+ " <port>")
+ + sruinfo.port
+ + mp_util::to_string("</port>\n"
+ " <database>")
+ + sruinfo.database
+ + mp_util::to_string("</database>\n"
+ " </serverInfo>\n"
+ "</explain>\n");
+ }
+ else {
+ // make new XML DOC with given explain node
+ xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
+ xmlDocSetRootElement(doc, (xmlNode*)explain);
+
+ xmlChar *xmlbuff;
+ int xmlbuffsz;
+ xmlDocDumpFormatMemory(doc, &xmlbuff, &xmlbuffsz, 1);
+
+ explain_xml.assign((const char*)xmlbuff, 0, xmlbuffsz);
+ }
+
+
+ // z3950'fy recordPacking
+ int record_packing = Z_SRW_recordPacking_XML;
+ if (er_req && er_req->recordPacking && 's' == *(er_req->recordPacking))
+ record_packing = Z_SRW_recordPacking_string;
+
+ // preparing explain record insert
+ Z_SRW_explainResponse *sru_res = sru_pdu_res->u.explain_response;
+
+ // 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 = (char *)xmlns_explain.c_str();
+ 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 mp_util::build_sru_response(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SOAP *soap,
+ const Z_SRW_PDU *sru_pdu_res,
+ char *charset,
+ const char *stylesheet)
+{
+
+ // SRU request package translation to Z3950 package
+ //if (sru_pdu_res)
+ // std::cout << *(const_cast<Z_SRW_PDU *>(sru_pdu_res)) << "\n";
+ //else
+ // std::cout << "SRU empty\n";
+
+
+ Z_GDU *zgdu_req = package.request().get();
+ if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
+ {
+ Z_GDU *zgdu_res //= z_get_HTTP_Response(odr_en, 200);
+ = odr_en.create_HTTP_Response(package.session(),
+ zgdu_req->u.HTTP_Request,
+ 200);
+
+ // adding HTTP response code and headers
+ Z_HTTP_Response * http_res = zgdu_res->u.HTTP_Response;
+ //http_res->code = http_code;
+
+ std::string ctype("text/xml");
+ if (charset){
+ ctype += "; charset=";
+ ctype += charset;
+ }
+
+ z_HTTP_header_add(odr_en,
+ &http_res->headers, "Content-Type", ctype.c_str());
+
+ // packaging Z_SOAP into HTML response
+ static Z_SOAP_Handler soap_handlers[4] = {
+ {"http://www.loc.gov/zing/srw/", 0,
+ (Z_SOAP_fun) yaz_srw_codec},
+ {"http://www.loc.gov/zing/srw/v1.0/", 0,
+ (Z_SOAP_fun) yaz_srw_codec},
+ {"http://www.loc.gov/zing/srw/update/", 0,
+ (Z_SOAP_fun) yaz_ucp_codec},
+ {0, 0, 0}
+ };
+
+
+ // empty stylesheet means NO stylesheet
+ if (stylesheet && *stylesheet == '\0')
+ stylesheet = 0;
+
+ // encoding SRU package
+
+ soap->u.generic->p = (void*) sru_pdu_res;
+ //int ret =
+ z_soap_codec_enc_xsl(odr_en, &soap,
+ &http_res->content_buf, &http_res->content_len,
+ soap_handlers, charset, stylesheet);
+
+
+ package.response() = zgdu_res;
+ return true;
+ }
+ package.session().close();
+ return false;
+}
+
+
+
+ Z_SRW_PDU * mp_util::decode_sru_request(mp::Package &package,
+ mp::odr &odr_de,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SOAP *&soap,
+ char *charset,
+ char *stylesheet)
+{
+ Z_GDU *zgdu_req = package.request().get();
+ Z_SRW_PDU *sru_pdu_req = 0;
+
+ //assert((zgdu_req->which == Z_GDU_HTTP_Request));
+
+ //ignoring all non HTTP_Request packages
+ if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
+ return 0;
+ }
+
+ Z_HTTP_Request* http_req = zgdu_req->u.HTTP_Request;
+ if (! http_req)
+ return 0;
+
+ // checking if we got a SRU GET/POST/SOAP HTTP package
+ // closing connection if we did not ...
+ if (0 == yaz_sru_decode(http_req, &sru_pdu_req, &soap,
+ odr_de, &charset,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics)))
+ {
+ if (sru_pdu_res->u.response->num_diagnostics)
+ {
+ //sru_pdu_res = sru_pdu_res_exp;
+ package.session().close();
+ return 0;
+ }
+ return sru_pdu_req;
+ }
+ else if (0 == yaz_srw_decode(http_req, &sru_pdu_req, &soap,
+ odr_de, &charset))
+ return sru_pdu_req;
+ else
+ {
+ //sru_pdu_res = sru_pdu_res_exp;
+ package.session().close();
+ return 0;
+ }
+ return 0;
+}
+
+
+bool
+mp_util::check_sru_query_exists(mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ Z_SRW_searchRetrieveRequest const *sr_req)
+{
+ 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;
+};
+
+
+
+
+Z_ElementSetNames *
+mp_util::build_esn_from_schema(mp::odr &odr_en,
+ const char *schema)
+{
+ if (!schema)
+ return 0;
+
+ Z_ElementSetNames *esn
+ = (Z_ElementSetNames *) odr_malloc(odr_en, sizeof(Z_ElementSetNames));
+ esn->which = Z_ElementSetNames_generic;
+ esn->u.generic = odr_strdup(odr_en, schema);
+ return esn;
}
+
+// mp_util::SRU::SRU_protocol_type
+// mp_util::SRU::protocol(const Z_HTTP_Request &http_req) const
+// {
+// const std::string mime_urlencoded("application/x-www-form-urlencoded");
+// const std::string mime_text_xml("text/xml");
+// const std::string mime_soap_xml("application/soap+xml");
+
+// const std::string http_method(http_req.method);
+// const std::string http_type
+// = mp_util::http_header_value(http_req.headers, "Content-Type");
+
+// if (http_method == "GET")
+// return SRU_GET;
+
+// if (http_method == "POST"
+// && http_type == mime_urlencoded)
+// return SRU_POST;
+
+// if ( http_method == "POST"
+// && (http_type == mime_text_xml
+// || http_type == mime_soap_xml))
+// return SRU_SOAP;
+
+// return SRU_NONE;
+// }
+
+// std::string
+// mp_util::sru_protocol(const Z_HTTP_Request &http_req) const
+// {
+// const std::string mime_urlencoded("application/x-www-form-urlencoded");
+// const std::string mime_text_xml("text/xml");
+// const std::string mime_soap_xml("application/soap+xml");
+
+// const std::string http_method(http_req.method);
+// const std::string http_type
+// = mp_util::http_header_value(http_req.headers, "Content-Type");
+
+// if (http_method == "GET")
+// return "SRU GET";
+
+// if (http_method == "POST"
+// && http_type == mime_urlencoded)
+// return "SRU POST";
+
+// if ( http_method == "POST"
+// && (http_type == mime_text_xml
+// || http_type == mime_soap_xml))
+// return "SRU SOAP";
+
+// return "HTTP";
+// }
+
+// std::string
+// mp_util::debug_http(const Z_HTTP_Request &http_req) const
+// {
+// std::string message("<html>\n<body>\n<h1>"
+// "Metaproxy SRUtoZ3950 filter"
+// "</h1>\n");
+
+// message += "<h3>HTTP Info</h3><br/>\n";
+// message += "<p>\n";
+// message += "<b>Method: </b> " + std::string(http_req.method) + "<br/>\n";
+// message += "<b>Version:</b> " + std::string(http_req.version) + "<br/>\n";
+// message += "<b>Path: </b> " + std::string(http_req.path) + "<br/>\n";
+
+// message += "<b>Content-Type:</b>"
+// + mp_util::http_header_value(http_req.headers, "Content-Type")
+// + "<br/>\n";
+// message += "<b>Content-Length:</b>"
+// + mp_util::http_header_value(http_req.headers, "Content-Length")
+// + "<br/>\n";
+// message += "</p>\n";
+
+// message += "<h3>Headers</h3><br/>\n";
+// message += "<p>\n";
+// Z_HTTP_Header* header = http_req.headers;
+// while (header){
+// message += "<b>Header: </b> <i>"
+// + std::string(header->name) + ":</i> "
+// + std::string(header->value) + "<br/>\n";
+// header = header->next;
+// }
+// message += "</p>\n";
+// message += "</body>\n</html>\n";
+// return message;
+// }
+
+// void mp_util::http_response(metaproxy_1::Package &package,
+// const std::string &content,
+// int http_code) const
+// {
+
+// Z_GDU *zgdu_req = package.request().get();
+// Z_GDU *zgdu_res = 0;
+// mp::odr odr;
+// zgdu_res
+// = odr.create_HTTP_Response(package.session(),
+// zgdu_req->u.HTTP_Request,
+// http_code);
+
+// zgdu_res->u.HTTP_Response->content_len = content.size();
+// zgdu_res->u.HTTP_Response->content_buf
+// = (char*) odr_malloc(odr, zgdu_res->u.HTTP_Response->content_len);
+
+// strncpy(zgdu_res->u.HTTP_Response->content_buf,
+// content.c_str(), zgdu_res->u.HTTP_Response->content_len);
+
+// //z_HTTP_header_add(odr, &hres->headers,
+// // "Content-Type", content_type.c_str());
+// package.response() = zgdu_res;
+// }
+
/*
* Local variables:
* c-basic-offset: 4
projects / metaproxy-moved-to-github.git / blobdiff