src/torus.cpp

   1 /* This file is part of Metaproxy.
   2    Copyright (C) Index Data
   3
   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
   7 version.
   8
   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
  12 for more details.
  13
  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
  17 */
  18
  19 #include <metaproxy/xmlutil.hpp>
  20
  21 #include <string.h>
  22 #include <yaz/wrbuf.h>
  23 #include <yaz/log.h>
  24 #include <yaz/url.h>
  25 #include <metaproxy/util.hpp>
  26 #include "torus.hpp"
  27
  28 namespace mp = metaproxy_1;
  29
  30 xmlDoc *mp::get_searchable(mp::Package &package,
  31                            std::string url_template, const std::string &db,
  32                            const std::string &query,
  33                            const std::string &realm,
  34                            const std::string &proxy,
  35                            std::string &addinfo)
  36 {
  37     // http://mk2.indexdata.com/torus2/searchable/records/?query=udb%3d%db
  38     // or
  39     // http://mk2.indexdata.com/torus2/searchable/records/?query=%query
  40     xmlDoc *doc = 0;
  41     size_t found;
  42
  43     found = url_template.find("%query");
  44     if (found != std::string::npos)
  45         url_template.replace(found, 6, mp::util::uri_encode(query));
  46
  47     found = url_template.find("%db");
  48     if (found != std::string::npos)
  49         url_template.replace(found, 3, mp::util::uri_encode(db));
  50
  51     found = url_template.find("%realm");
  52     if (found != std::string::npos)
  53         url_template.replace(found, 6, mp::util::uri_encode(realm));
  54
  55     Z_HTTP_Header *http_headers = 0;
  56     mp::odr odr;
  57
  58     z_HTTP_header_add(odr, &http_headers, "Accept","application/xml");
  59
  60     yaz_url_t url_p = yaz_url_create();
  61     if (proxy.length())
  62         yaz_url_set_proxy(url_p, proxy.c_str());
  63
  64     Z_HTTP_Response *http_response = yaz_url_exec(url_p,
  65                                                   url_template.c_str(),
  66                                                   "GET",
  67                                                   http_headers,
  68                                                   0, /* content buf */
  69                                                   0  /* content_len */
  70         );
  71     if (http_response && http_response->code == 200 &&
  72         http_response->content_buf)
  73     {
  74         doc = xmlParseMemory(http_response->content_buf,
  75                              http_response->content_len);
  76         if (doc)
  77             package.log("zoom", YLOG_LOG, "Torus: %s OK",
  78                         url_template.c_str());
  79         else
  80         {
  81             package.log("zoom", YLOG_WARN, "Torus: %s FAIL. XML parse failed",
  82                         url_template.c_str());
  83             addinfo = "Torus: XML parse failed";
  84         }
  85     }
  86     else
  87     {
  88         addinfo = "Torus: ";
  89         if (http_response)
  90         {
  91             package.log("zoom", YLOG_WARN, "Torus: %s FAIL. HTTP code %d",
  92                         url_template.c_str(), http_response->code);
  93             addinfo += std::string(http_response->content_buf,
  94                                   http_response->content_len);
  95         }
  96         else
  97         {
  98             addinfo += "unknown error";
  99             package.log("zoom", YLOG_WARN, "Torus: %s FAIL. No HTTP response",
 100                         url_template.c_str());
 101         }
 102     }
 103
 104     if (http_response && http_response->content_buf)
 105     {
 106         package.log("zoom", YLOG_LOG, "HTTP content");
 107         package.log_write(http_response->content_buf,
 108                           http_response->content_len);
 109     }
 110     yaz_url_destroy(url_p);
 111     return doc;
 112 }
 113
 114 /*
 115  * Local variables:
 116  * c-basic-offset: 4
 117  * c-file-style: "Stroustrup"
 118  * indent-tabs-mode: nil
 119  * End:
 120  * vim: shiftwidth=4 tabstop=8 expandtab
 121  */
 122