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package ieproxy
import (
"net/http"
"net/url"
"golang.org/x/net/http/httpproxy"
)
func proxyMiddleman() func(req *http.Request) (i *url.URL, e error) {
// Get the proxy configuration
conf := GetConf()
envCfg := httpproxy.FromEnvironment()
if envCfg.HTTPProxy != "" || envCfg.HTTPSProxy != "" {
// If the user manually specifies environment variables, prefer those over the MacOS config.
return http.ProxyFromEnvironment
}
return func(req *http.Request) (i *url.URL, e error) {
if conf.Automatic.Active {
host := conf.Automatic.FindProxyForURL(req.URL.String())
if host != "" {
return &url.URL{Host: host}, nil
}
}
if conf.Static.Active {
return staticProxy(conf, req)
}
// Should return no proxy; fallthrough.
return http.ProxyFromEnvironment(req)
}
}
func staticProxy(conf ProxyConf, req *http.Request) (i *url.URL, e error) {
// If static proxy obtaining is specified
proxy := httpproxy.Config{
HTTPSProxy: conf.Static.Protocols["https"],
HTTPProxy: conf.Static.Protocols["http"],
NoProxy: conf.Static.NoProxy,
}
return proxy.ProxyFunc()(req.URL)
}
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