Mac OSXではコマンドライン上からシステムで使用されているプロキシーの設定を見ることが難しい．そこで，システムのプロキシー設定を取得してexportを出力するプログラムを書いてみた．


# !/usr/bin/env php
<?php

function MacNetworkGetServiceName($interface = NULL) {
	if (!is_string($interface)) $interface = MacNetworkGetInterface();
	exec('networksetup -listnetworkserviceorder', $output);
	$network = FALSE;
	foreach ($output as $line) {
		if (preg_match('%^\(\d+\) (.+)$%m', $line, $match)) {
			$network = $match[1];
			continue;
		}
		if (preg_match('%Device: ([^, \)]+)%', $line, $match)) {
			$device = $match[1];
			if ($interface === $device) return $network;
		}
	}
	return NULL;
}

function MacNetworkGetInterface($ip_address = '0.0.0.0') {
	if (ip2long($ip_address) === FALSE) return NULL;
	exec("route -n get $ip_address", $output);
	foreach ($output as $line) {
		$line = array_map('trim', explode(':', trim($line), 2));
		if (count($line) != 2) continue;
		if (strtolower($line[0]) == 'interface') return $line[1];
	}
	return NULL;
}

function MacNetworkGetProxy($type = 'web', $service_name = NULL) {
	if (!is_string($service_name)) $service_name = MacNetworkGetServiceName();
	$type = strtolower($type);
	if (!in_array($type, array(
	    'ftp', 'web', 'secureweb', 'streaming', 'gopher', 'socksfirewall'))) {
		return NULL;
	}
	exec("networksetup -get{$type}proxy $service_name", $output);
	$server = ''; $port = 0;
	foreach ($output as $line) {
		$line = array_map('trim', explode(':', trim($line), 2));
		if (count($line) != 2) continue;
		$key = strtolower($line[0]);
		if ($key == 'enabled') {
			if (in_array(strtolower($line[1]), array('no', 'false')) || !$line[1]) {
				return FALSE;
			}
		}
		if ($key == 'server') $server = $line[1];
		if ($key == 'port') $port = $line[1];
	}
	if ($server && $port) return "$server:$port";
	return FALSE;
}

$http_proxy = MacNetworkGetProxy('web');
$https_proxy = MacNetworkGetProxy('secureweb');
$socks_proxy = MacNetworkGetProxy('socksfirewall');


if ($http_proxy) {
	echo "export http_proxy='$http_proxy';";
	echo "export HTTP_PROXY='$http_proxy';";
	echo "export FTP_PROXY='http://$http_proxy/';";
	echo "export RSYNC_PROXY='$http_proxy';";
} else {
	echo "unset FTP_PROXY;unset RSYNC_PROXY;";
	echo "unset http_proxy;unset HTTP_PROXY;";
}
if ($https_proxy) {
	echo "export https_proxy='$https_proxy';";
	echo "export HTTPS_PROXY='$https_proxy';";
} else {
	echo "unset https_proxy;unset HTTPS_PROXY;";
}
if ($socks_proxy) {
	echo "export SOCKS_PROXY='$socks_proxy';";
} else {
	echo "unset SOCKS_PROXY;";
}
echo "\n";

上記プログラムを proxy_export という名前でパスを通し，

eval `proxy_export`

という感じで実行すると簡単に設定できる(かも)．