/
proxy.go
57 lines (47 loc) · 1.18 KB
/
proxy.go
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package proxy
import (
"fmt"
"net/http"
"net/url"
"golang.org/x/net/proxy"
)
type HTTPProxy struct {
UseSystemProxy bool `toml:"use_system_proxy"`
HTTPProxyURL string `toml:"http_proxy_url"`
}
type proxyFunc func(req *http.Request) (*url.URL, error)
func (p *HTTPProxy) Proxy() (proxyFunc, error) {
if p.UseSystemProxy {
return http.ProxyFromEnvironment, nil
} else if len(p.HTTPProxyURL) > 0 {
address, err := url.Parse(p.HTTPProxyURL)
if err != nil {
return nil, fmt.Errorf("error parsing proxy url %q: %w", p.HTTPProxyURL, err)
}
return http.ProxyURL(address), nil
}
return nil, nil
}
type TCPProxy struct {
UseProxy bool `toml:"use_proxy"`
ProxyURL string `toml:"proxy_url"`
}
func (p *TCPProxy) Proxy() (*ProxiedDialer, error) {
var dialer proxy.Dialer
if p.UseProxy {
if len(p.ProxyURL) > 0 {
parsed, err := url.Parse(p.ProxyURL)
if err != nil {
return nil, fmt.Errorf("error parsing proxy url %q: %w", p.ProxyURL, err)
}
if dialer, err = proxy.FromURL(parsed, proxy.Direct); err != nil {
return nil, err
}
} else {
dialer = proxy.FromEnvironment()
}
} else {
dialer = proxy.Direct
}
return &ProxiedDialer{dialer}, nil
}