1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2013 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
20 #include <metaproxy/filter.hpp>
21 #include <metaproxy/package.hpp>
22 #include <metaproxy/util.hpp>
24 #include "filter_http_client.hpp"
29 #include <boost/thread/mutex.hpp>
36 #include <sys/types.h>
43 namespace mp = metaproxy_1;
44 namespace yf = mp::filter;
46 namespace metaproxy_1 {
48 class HTTPClient::Rep {
49 friend class HTTPClient;
50 void proxy(mp::Package &package);
51 std::string proxy_host;
52 std::string default_host;
59 yf::HTTPClient::Rep::Rep()
64 yf::HTTPClient::HTTPClient() : m_p(new Rep)
68 yf::HTTPClient::~HTTPClient()
72 void yf::HTTPClient::Rep::proxy(mp::Package &package)
74 Z_GDU *req_gdu = package.request().get();
75 if (req_gdu && req_gdu->which == Z_GDU_HTTP_Request)
77 Z_HTTP_Request *hreq = req_gdu->u.HTTP_Request;
80 yaz_url_t yaz_url = yaz_url_create();
81 const char *http_proxy =
82 z_HTTP_header_remove(&hreq->headers, "X-Metaproxy-Proxy");
85 http_proxy = proxy_host.c_str();
88 yaz_url_set_proxy(yaz_url, http_proxy);
90 yaz_url_set_max_redirects(yaz_url, max_redirects);
93 if (hreq->path[0] == '/')
95 if (default_host.length())
96 uri = default_host + hreq->path;
100 Z_HTTP_Response *http_response = 0;
103 yaz_url_exec(yaz_url, uri.c_str(), hreq->method,
104 hreq->headers, hreq->content_buf,
108 res_gdu = o.create_HTTP_Response(package.session(), hreq, 200);
109 z_HTTP_header_remove(&http_response->headers, "Transfer-Encoding");
110 res_gdu->u.HTTP_Response = http_response;
114 res_gdu = o.create_HTTP_Response_details(
117 yaz_url_get_error(yaz_url));
119 package.response() = res_gdu;
120 yaz_url_destroy(yaz_url);
126 void yf::HTTPClient::process(mp::Package &package) const
128 Z_GDU *gdu = package.request().get();
129 if (gdu && gdu->which == Z_GDU_HTTP_Request)
135 void mp::filter::HTTPClient::configure(const xmlNode * ptr, bool test_only,
138 for (ptr = ptr->children; ptr; ptr = ptr->next)
140 if (ptr->type != XML_ELEMENT_NODE)
142 else if (!strcmp((const char *) ptr->name, "proxy"))
144 m_p->proxy_host = mp::xml::get_text(ptr);
146 else if (!strcmp((const char *) ptr->name, "max-redirects"))
148 m_p->max_redirects = mp::xml::get_int(ptr, 0);
150 else if (!strcmp((const char *) ptr->name, "default-host"))
152 m_p->default_host = mp::xml::get_text(ptr);
153 if (m_p->default_host.find("://") == std::string::npos)
155 throw mp::filter::FilterException
156 ("default-host is missing method (such as http://)"
157 " in http_client filter");
162 throw mp::filter::FilterException
164 + std::string((const char *) ptr->name)
165 + " in http_client filter");
170 static mp::filter::Base* filter_creator()
172 return new mp::filter::HTTPClient;
176 struct metaproxy_1_filter_struct metaproxy_1_filter_http_client = {
187 * c-file-style: "Stroustrup"
188 * indent-tabs-mode: nil
190 * vim: shiftwidth=4 tabstop=8 expandtab