64 lines
1.7 KiB
Go
64 lines
1.7 KiB
Go
package proxy
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import (
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"context"
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"crypto/tls"
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"fmt"
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"net"
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"net/http"
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"net/url"
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"strings"
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"github.com/gorilla/websocket"
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"golang.org/x/net/proxy"
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)
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// GetDialer 获取代理拨号器
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func GetDialer(proxyType, proxyAddress string) (*websocket.Dialer, error) {
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if proxyAddress == "" {
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return &websocket.Dialer{}, nil
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}
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if !strings.HasPrefix(proxyAddress, "http://") && !strings.HasPrefix(proxyAddress, "https://") && !strings.HasPrefix(proxyAddress, "socks5://") {
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proxyAddress = proxyType + "://" + proxyAddress
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}
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proxyURL, err := url.Parse(proxyAddress)
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if err != nil {
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return nil, fmt.Errorf("failed to parse proxy URL: %v", err)
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}
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transport := &http.Transport{
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TLSClientConfig: &tls.Config{InsecureSkipVerify: false},
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}
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switch proxyURL.Scheme {
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case "socks5":
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return createSocks5Dialer(proxyURL)
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case "http", "https":
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transport.Proxy = http.ProxyURL(proxyURL)
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return &websocket.Dialer{Proxy: transport.Proxy, TLSClientConfig: transport.TLSClientConfig}, nil
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default:
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return nil, fmt.Errorf("unsupported proxy scheme: %s", proxyURL.Scheme)
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}
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}
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func createSocks5Dialer(proxyURL *url.URL) (*websocket.Dialer, error) {
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auth := &proxy.Auth{}
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if proxyURL.User != nil {
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auth.User = proxyURL.User.Username()
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auth.Password, _ = proxyURL.User.Password()
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}
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socksDialer, err := proxy.SOCKS5("tcp", proxyURL.Host, auth, proxy.Direct)
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if err != nil {
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return nil, fmt.Errorf("failed to create SOCKS5 proxy dialer: %v", err)
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}
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return &websocket.Dialer{
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NetDialContext: func(ctx context.Context, network, address string) (net.Conn, error) {
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return socksDialer.Dial(network, address)
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},
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}, nil
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}
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