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/*******************************************************************************
* libproxy - A library for proxy configuration
* Copyright (C) 2006 Nathaniel McCallum <nathaniel@natemccallum.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#include <cstdlib>
#include "../extension_config.hpp"
using namespace libproxy;
class envvar_config_extension : public config_extension {
public:
vector<url> get_config(const url &dst) {
const char *proxy = NULL;
vector<url> response;
// If _PX_DEBUG_PACURL is set, use it as the PAC URL.
if (proxy = getenv("_PX_DEBUG_PACURL")) {
response.push_back(url(string("pac+") + proxy));
return response;
}
// If the URL is an ftp url, try to read the ftp proxy
if (dst.get_scheme() == "ftp") {
if (!(proxy = getenv("ftp_proxy")))
proxy = getenv("FTP_PROXY");
}
// If the URL is an https url, try to read the https proxy
if (dst.get_scheme() == "https") {
if (!(proxy = getenv("https_proxy")))
proxy = getenv("HTTPS_PROXY");
}
// If the URL is not ftp or no ftp_proxy was found, get the http_proxy
if (!proxy) {
if (!(proxy = getenv("http_proxy")))
proxy = getenv("HTTP_PROXY");
}
if (!proxy)
throw runtime_error("Unable to read configuration");
response.push_back(url(proxy));
return response;
}
string get_ignore(const url&) {
char *ignore = getenv("no_proxy");
ignore = ignore ? ignore : getenv("NO_PROXY");
return string(ignore ? ignore : "");
}
// Make sure that envvar is pushed to the back behind all other config extensions
virtual bool operator<(const base_extension&) const {
return false;
}
};
MM_MODULE_INIT_EZ(envvar_config_extension, true, NULL, NULL);
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