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/*
 * Copyright (c) 2010-2011 Thilo Cestonaro
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

/*
 * Copyright (c) 2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Swiften/Network/EnvironmentProxyProvider.h>

#include <stdio.h>
#include <stdlib.h>

#include <iostream>

#include <Swiften/Base/Log.h>

namespace Swift {

EnvironmentProxyProvider::EnvironmentProxyProvider() {
    socksProxy = getFromEnv("all_proxy", "socks");
    httpProxy = getFromEnv("http_proxy", "http");
    SWIFT_LOG(debug) << "Environment: SOCKS5 => " << socksProxy.toString() << "; HTTP Connect => " << httpProxy.toString() << std::endl;
}

HostAddressPort EnvironmentProxyProvider::getHTTPConnectProxy() const {
    return httpProxy;
}

HostAddressPort EnvironmentProxyProvider::getSOCKS5Proxy() const {
    return socksProxy;
}

HostAddressPort EnvironmentProxyProvider::getFromEnv(const char* envVarName, std::string proxyProtocol) {
    char* envVar = nullptr;
    std::string address;
    int port = 0;

    envVar = getenv(envVarName);

    proxyProtocol += "://";
    address = envVar != nullptr ? envVar : "0.0.0.0";
    if(envVar != nullptr && address.compare(0, proxyProtocol.length(), proxyProtocol) == 0) {
        address = address.substr(proxyProtocol.length(), address.length());
        port = atoi(address.substr(address.find(':') + 1, address.length()).c_str());
        address = address.substr(0, address.find(':'));
    }

    return HostAddressPort(HostAddress(address), port);
}

}