src/torus.cpp

   1 /* This file is part of Metaproxy.
   2    Copyright (C) 2005-2012 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 {
  36     // http://mk2.indexdata.com/torus2/searchable/records/?query=udb%3d%db
  37     // or
  38     // http://mk2.indexdata.com/torus2/searchable/records/?query=%query
  39     xmlDoc *doc = 0;
  40     size_t found;
  41
  42     found = url_template.find("%query");
  43     if (found != std::string::npos)
  44         url_template.replace(found, 6, mp::util::uri_encode(query));
  45     else
  46     {
  47         if (db.length() == 0)
  48         {
  49             package.log("zoom", YLOG_WARN,
  50                         "%query not defined in <torus url=\"..\"");
  51             return 0;
  52         }
  53     }
  54
  55     found = url_template.find("%db");
  56     if (found != std::string::npos)
  57         url_template.replace(found, 3, mp::util::uri_encode(db));
  58
  59     found = url_template.find("%realm");
  60     if (found != std::string::npos)
  61         url_template.replace(found, 6, mp::util::uri_encode(realm));
  62
  63     Z_HTTP_Header *http_headers = 0;
  64     mp::odr odr;
  65
  66     z_HTTP_header_add(odr, &http_headers, "Accept","application/xml");
  67
  68     yaz_url_t url_p = yaz_url_create();
  69     if (proxy.length())
  70         yaz_url_set_proxy(url_p, proxy.c_str());
  71
  72     Z_HTTP_Response *http_response = yaz_url_exec(url_p,
  73                                                   url_template.c_str(),
  74                                                   "GET",
  75                                                   http_headers,
  76                                                   0, /* content buf */
  77                                                   0  /* content_len */
  78         );
  79     if (http_response && http_response->code == 200 &&
  80         http_response->content_buf)
  81     {
  82         package.log("zoom", YLOG_LOG, "Torus: %s OK", url_template.c_str());
  83         doc = xmlParseMemory(http_response->content_buf,
  84                              http_response->content_len);
  85
  86     }
  87     else
  88     {
  89         package.log("zoom", YLOG_WARN, "Torus: %s FAIL", url_template.c_str());
  90         if (http_response)
  91         {
  92             package.log("zoom", YLOG_LOG, "HTTP code: %d", http_response->code);
  93         }
  94     }
  95
  96     if (http_response && http_response->content_buf)
  97     {
  98         package.log("zoom", YLOG_LOG, "HTTP content");
  99         package.log_write(http_response->content_buf,
 100                           http_response->content_len);
 101     }
 102     yaz_url_destroy(url_p);
 103     return doc;
 104 }
 105
 106 /*
 107  * Local variables:
 108  * c-basic-offset: 4
 109  * c-file-style: "Stroustrup"
 110  * indent-tabs-mode: nil
 111  * End:
 112  * vim: shiftwidth=4 tabstop=8 expandtab
 113  */
 114