1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2010 Index Data
4 Metaproxy is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #include "sru_util.hpp"
20 #include <metaproxy/util.hpp>
25 namespace mp = metaproxy_1;
27 // Doxygen doesn't like mp::gdu, so we use this instead
28 namespace mp_util = metaproxy_1::util;
30 const std::string xmlns_explain("http://explain.z3950.org/dtd/2.0/");
32 bool mp_util::build_sru_debug_package(mp::Package &package)
34 Z_GDU *zgdu_req = package.request().get();
35 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
37 Z_HTTP_Request* http_req = zgdu_req->u.HTTP_Request;
38 std::string content = mp_util::http_headers_debug(*http_req);
40 mp_util::http_response(package, content, http_code);
43 package.session().close();
47 mp_util::SRUServerInfo mp_util::get_sru_server_info(mp::Package &package)
49 mp_util::SRUServerInfo sruinfo;
51 // getting host and port info
52 sruinfo.host = package.origin().listen_host();
53 sruinfo.port = mp_util::to_string(package.origin().listen_port());
55 // overwriting host and port info if set from HTTP Host header
56 Z_GDU *zgdu_req = package.request().get();
57 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
59 Z_HTTP_Request* http_req = zgdu_req->u.HTTP_Request;
62 std::string http_path = http_req->path;
64 // taking out GET parameters
65 std::string::size_type ipath = http_path.rfind("?");
66 if (ipath != std::string::npos)
67 http_path.assign(http_path, 0, ipath);
69 // assign to database name
70 if (http_path.size() > 1)
71 sruinfo.database.assign(http_path, 1, std::string::npos);
73 std::string http_host_address
74 = mp_util::http_header_value(http_req->headers, "Host");
76 std::string::size_type iaddress = http_host_address.rfind(":");
77 if (iaddress != std::string::npos)
79 sruinfo.host.assign(http_host_address, 0, iaddress);
80 sruinfo.port.assign(http_host_address, iaddress + 1,
86 //std::cout << "sruinfo.database " << sruinfo.database << "\n";
87 //std::cout << "sruinfo.host " << sruinfo.host << "\n";
88 //std::cout << "sruinfo.port " << sruinfo.port << "\n";
94 bool mp_util::build_sru_explain(metaproxy_1::Package &package,
95 metaproxy_1::odr &odr_en,
96 Z_SRW_PDU *sru_pdu_res,
97 SRUServerInfo sruinfo,
98 const xmlNode *explain,
99 Z_SRW_explainRequest const *er_req)
102 // building SRU explain record
103 std::string explain_xml;
107 = mp_util::to_string(
108 "<explain xmlns=\"" + xmlns_explain + "\">\n"
109 " <serverInfo protocol='SRU'>\n"
112 + mp_util::to_string("</host>\n"
115 + mp_util::to_string("</port>\n"
118 + mp_util::to_string("</database>\n"
123 // make new XML DOC with given explain node
124 xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
125 xmlDocSetRootElement(doc, (xmlNode*)explain);
129 xmlDocDumpFormatMemory(doc, &xmlbuff, &xmlbuffsz, 1);
131 explain_xml.assign((const char*)xmlbuff, 0, xmlbuffsz);
135 // z3950'fy recordPacking
136 int record_packing = Z_SRW_recordPacking_XML;
137 if (er_req && er_req->recordPacking && 's' == *(er_req->recordPacking))
138 record_packing = Z_SRW_recordPacking_string;
140 // preparing explain record insert
141 Z_SRW_explainResponse *sru_res = sru_pdu_res->u.explain_response;
143 // inserting one and only explain record
145 sru_res->record.recordPosition = odr_intdup(odr_en, 1);
146 sru_res->record.recordPacking = record_packing;
147 sru_res->record.recordSchema = (char *)xmlns_explain.c_str();
148 sru_res->record.recordData_len = 1 + explain_xml.size();
149 sru_res->record.recordData_buf
150 = odr_strdupn(odr_en, (const char *)explain_xml.c_str(),
151 1 + explain_xml.size());
157 bool mp_util::build_sru_response(mp::Package &package,
160 const Z_SRW_PDU *sru_pdu_res,
162 const char *stylesheet)
165 // SRU request package translation to Z3950 package
167 // std::cout << *(const_cast<Z_SRW_PDU *>(sru_pdu_res)) << "\n";
169 // std::cout << "SRU empty\n";
172 Z_GDU *zgdu_req = package.request().get();
173 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
175 Z_GDU *zgdu_res //= z_get_HTTP_Response(odr_en, 200);
176 = odr_en.create_HTTP_Response(package.session(),
177 zgdu_req->u.HTTP_Request,
180 // adding HTTP response code and headers
181 Z_HTTP_Response * http_res = zgdu_res->u.HTTP_Response;
182 //http_res->code = http_code;
184 std::string ctype("text/xml");
187 ctype += "; charset=";
191 z_HTTP_header_add(odr_en,
192 &http_res->headers, "Content-Type", ctype.c_str());
194 // packaging Z_SOAP into HTML response
195 static Z_SOAP_Handler soap_handlers[4] = {
196 {(char *)YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
197 {(char *)YAZ_XMLNS_SRU_v1_0, 0, (Z_SOAP_fun) yaz_srw_codec},
198 {(char *)YAZ_XMLNS_UPDATE_v0_9, 0, (Z_SOAP_fun) yaz_ucp_codec},
203 // empty stylesheet means NO stylesheet
204 if (stylesheet && *stylesheet == '\0')
207 // encoding SRU package
209 soap->u.generic->p = (void*) sru_pdu_res;
211 z_soap_codec_enc_xsl(odr_en, &soap,
212 &http_res->content_buf, &http_res->content_len,
213 soap_handlers, charset, stylesheet);
216 package.response() = zgdu_res;
219 package.session().close();
225 Z_SRW_PDU * mp_util::decode_sru_request(mp::Package &package,
228 Z_SRW_PDU *sru_pdu_res,
233 Z_GDU *zgdu_req = package.request().get();
234 Z_SRW_PDU *sru_pdu_req = 0;
236 //assert((zgdu_req->which == Z_GDU_HTTP_Request));
238 //ignoring all non HTTP_Request packages
239 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request))
244 Z_HTTP_Request* http_req = zgdu_req->u.HTTP_Request;
248 // checking if we got a SRU GET/POST/SOAP HTTP package
249 // closing connection if we did not ...
250 if (0 == yaz_sru_decode(http_req, &sru_pdu_req, soap,
252 &(sru_pdu_res->u.response->diagnostics),
253 &(sru_pdu_res->u.response->num_diagnostics)))
255 if (sru_pdu_res->u.response->num_diagnostics)
257 //sru_pdu_res = sru_pdu_res_exp;
258 package.session().close();
263 else if (0 == yaz_srw_decode(http_req, &sru_pdu_req, soap,
268 //sru_pdu_res = sru_pdu_res_exp;
269 package.session().close();
277 mp_util::check_sru_query_exists(mp::Package &package,
279 Z_SRW_PDU *sru_pdu_res,
280 Z_SRW_searchRetrieveRequest const *sr_req)
282 if ((sr_req->query_type == Z_SRW_query_type_cql && !sr_req->query.cql))
284 yaz_add_srw_diagnostic(odr_en,
285 &(sru_pdu_res->u.response->diagnostics),
286 &(sru_pdu_res->u.response->num_diagnostics),
288 yaz_add_srw_diagnostic(odr_en,
289 &(sru_pdu_res->u.response->diagnostics),
290 &(sru_pdu_res->u.response->num_diagnostics),
291 10, "CQL query is empty");
294 if ((sr_req->query_type == Z_SRW_query_type_xcql && !sr_req->query.xcql))
296 yaz_add_srw_diagnostic(odr_en,
297 &(sru_pdu_res->u.response->diagnostics),
298 &(sru_pdu_res->u.response->num_diagnostics),
299 10, "XCQL query is empty");
302 if ((sr_req->query_type == Z_SRW_query_type_pqf && !sr_req->query.pqf))
304 yaz_add_srw_diagnostic(odr_en,
305 &(sru_pdu_res->u.response->diagnostics),
306 &(sru_pdu_res->u.response->num_diagnostics),
307 10, "PQF query is empty");
315 mp_util::build_esn_from_schema(mp::odr &odr_en, const char *schema)
320 Z_ElementSetNames *esn
321 = (Z_ElementSetNames *) odr_malloc(odr_en, sizeof(Z_ElementSetNames));
322 esn->which = Z_ElementSetNames_generic;
323 esn->u.generic = odr_strdup(odr_en, schema);
328 std::ostream& std::operator<<(std::ostream& os, Z_SRW_PDU& srw_pdu)
332 switch(srw_pdu.which) {
333 case Z_SRW_searchRetrieve_request:
334 os << " " << "searchRetrieveRequest";
336 Z_SRW_searchRetrieveRequest *sr = srw_pdu.u.request;
340 os << " " << (sr->database);
344 os << " " << *(sr->startRecord);
347 if (sr->maximumRecords)
348 os << " " << *(sr->maximumRecords);
351 if (sr->recordPacking)
352 os << " " << (sr->recordPacking);
356 if (sr->recordSchema)
357 os << " " << (sr->recordSchema);
361 switch (sr->query_type){
362 case Z_SRW_query_type_cql:
365 os << " " << sr->query.cql;
367 case Z_SRW_query_type_xcql:
370 case Z_SRW_query_type_pqf:
373 os << " " << sr->query.pqf;
379 case Z_SRW_searchRetrieve_response:
380 os << " " << "searchRetrieveResponse";
382 Z_SRW_searchRetrieveResponse *sr = srw_pdu.u.response;
385 if (! (sr->num_diagnostics))
388 if (sr->numberOfRecords)
389 os << " " << *(sr->numberOfRecords);
392 //if (sr->num_records)
393 os << " " << (sr->num_records);
396 if (sr->nextRecordPosition)
397 os << " " << *(sr->nextRecordPosition);
404 if (sr->diagnostics && sr->diagnostics->uri)
405 os << " " << (sr->diagnostics->uri);
408 if (sr->diagnostics && sr->diagnostics->message)
409 os << " " << (sr->diagnostics->message);
412 if (sr->diagnostics && sr->diagnostics->details)
413 os << " " << (sr->diagnostics->details);
422 case Z_SRW_explain_request:
423 os << " " << "explainRequest";
425 case Z_SRW_explain_response:
426 os << " " << "explainResponse";
428 case Z_SRW_scan_request:
429 os << " " << "scanRequest";
431 case Z_SRW_scan_response:
432 os << " " << "scanResponse";
434 case Z_SRW_update_request:
435 os << " " << "updateRequest";
437 case Z_SRW_update_response:
438 os << " " << "updateResponse";
441 os << " " << "UNKNOWN";
450 * c-file-style: "Stroustrup"
451 * indent-tabs-mode: nil
453 * vim: shiftwidth=4 tabstop=8 expandtab