Add support for HTTP/HTTPS proxies

README.md

@@ -6,7 +6,7 @@ This is a client for [vpngate.net](https://www.vpngate.net/).
 
 This client fetches the list of available relay servers provided by vpngate.net, and allows you to filter and connect to a server of your liking.
 
-You can check out your current IP address and region at https://ipinfo.io, or run the following:
+You can check out your current IP address and region at <https://ipinfo.io>, or run the following:
 
 ```shell
 curl ipinfo.io
@@ -81,6 +81,18 @@ sudo vpngate connect --random
 
 #### Proxy
 
+In some cases, anonymity is necessary to populate the list of available VPN servers.
+
+A proxy is a way to bypass restrictions and in some cases, internet censorship.
+
+##### HTTP/HTTPS
+
+Use the specified HTTP/HTTPS proxy to fetch the server list.
+
+```shell
+sudo vpngate connect --proxy "http://localhost:8080"
+```
+
 ##### SOCKS5
 
 Use the specified SOCKS5 proxy to fetch the server list.

cmd/connect.go

@@ -18,13 +18,15 @@ import (
 var (
 	flagRandom      bool
 	flagReconnect   bool
+	flagProxy       string
 	flagSocks5Proxy string
 )
 
 func init() {
 	connectCmd.Flags().BoolVarP(&flagRandom, "random", "r", false, "connect to a random server")
 	connectCmd.Flags().BoolVarP(&flagReconnect, "reconnect", "t", false, "continually attempt to connect to the server")
-	connectCmd.Flags().StringVarP(&flagSocks5Proxy, "socks5", "s", "", "provide a socks5 proxy server to connect through (i.e. 127.0.0.1:1080")
+	connectCmd.Flags().StringVarP(&flagProxy, "proxy", "p", "", "provide a http/https proxy server to make requests through (i.e. 127.0.0.1:8080")
+	connectCmd.Flags().StringVarP(&flagSocks5Proxy, "socks5", "s", "", "provide a socks5 proxy server to make requests through (i.e. 127.0.0.1:1080")
 	rootCmd.AddCommand(connectCmd)
 }
 
@@ -35,7 +37,7 @@ var connectCmd = &cobra.Command{
 	Long:  `Connect to a vpn from a list of relay servers`,
 	Args:  cobra.RangeArgs(0, 1),
 	Run: func(cmd *cobra.Command, args []string) {
-		vpnServers, err := vpn.GetList(flagSocks5Proxy)
+		vpnServers, err := vpn.GetList(flagProxy, flagSocks5Proxy)
 		if err != nil {
 			log.Fatal().Msgf(err.Error())
 			os.Exit(1)

cmd/list.go

@@ -22,7 +22,7 @@ var listCmd = &cobra.Command{
 	Args:  cobra.NoArgs,
 	Run: func(cmd *cobra.Command, args []string) {
 		
-		vpnServers, err := vpn.GetList(flagSocks5Proxy)
+		vpnServers, err := vpn.GetList(flagProxy, flagSocks5Proxy)
 		if err != nil {
 			log.Fatal().Msgf(err.Error())
 			os.Exit(1)

pkg/vpn/list.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"io"
 	"net/http"
+	"net/url"
 	"os"
 
 	"github.com/jszwec/csvutil"
@@ -57,7 +58,7 @@ func parseVpnList(r io.Reader) (*[]Server, error) {
 }
 
 // GetList returns a list of vpn servers
-func GetList(socks5Proxy string) (*[]Server, error) {
+func GetList(httpProxy string, socks5Proxy string) (*[]Server, error) {
 	cacheExpired := vpnListCacheIsExpired()
 
 	var servers *[]Server
@@ -78,7 +79,21 @@ func GetList(socks5Proxy string) (*[]Server, error) {
 
 	log.Info().Msg("Fetching the latest server list")
 
-	if socks5Proxy != "" {
+	if httpProxy != "" {
+		proxyURL, err := url.Parse(httpProxy)
+		if err != nil {
+			log.Error().Msgf("Error parsing proxy:", err)
+			os.Exit(1)
+		}
+		transport := &http.Transport{
+			Proxy: http.ProxyURL(proxyURL),
+		}
+
+		client = &http.Client{
+			Transport: transport,
+		}
+
+	} else if socks5Proxy != "" {
 		dialer, err := proxy.SOCKS5("tcp", socks5Proxy, nil, proxy.Direct)
 		if err != nil {
 			log.Error().Msgf("Error creating SOCKS5 dialer: %v", err)