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// @flow
import Logger from '../Logger';
type ProxyControllerType = {|
HTTP_PROXY: string | null,
HTTPS_PROXY: string | null,
NO_PROXY: string | null,
|};
const log = Logger.child({
namespace: 'createProxyController',
});
const KNOWN_PROPERTY_NAMES = [
'HTTP_PROXY',
'HTTPS_PROXY',
'NO_PROXY',
];
export default (): ProxyControllerType => {
// eslint-disable-next-line fp/no-proxy
return new Proxy({
HTTP_PROXY: null,
HTTPS_PROXY: null,
NO_PROXY: null,
}, {
set: (subject, name, value) => {
if (!KNOWN_PROPERTY_NAMES.includes(name)) {
throw new Error('Cannot set an unmapped property "' + name + '".');
}
subject[name] = value;
log.info({
change: {
name,
value,
},
newConfiguration: subject,
}, 'configuration changed');
return true;
},
});
};