initial socks5 support

upd doc
Merge pull request #141 from Snawoot/auto_user_agent
2026-04-05 23:38:13 +00:00 · 2025-04-13 00:44:32 +03:00 · 2025-04-12 21:36:49 +03:00 · 2025-04-12 21:34:07 +03:00 · 2025-04-12 21:09:20 +03:00 · 2025-04-12 20:52:42 +03:00
11 changed files with 347 additions and 149 deletions
--- a/README.md
+++ b/README.md
@@ -165,15 +165,17 @@ zagent248.hola.org,165.22.65.3,22222,22223,22224,22225,22226,digitalocean
 | ext-ver | String | extension version to mimic in requests. Can be obtained from https://chrome.google.com/webstore/detail/hola-vpn-the-website-unbl/gkojfkhlekighikafcpjkiklfbnlmeio (default "999.999.999") |
 | force-port-field | Number | force specific port field/num (example 24232 or lum) |
 | hide-SNI | Boolean | hide SNI in TLS sessions with proxy server (default true) |
+| init-retries | Number | number of attempts for initialization steps, zero for unlimited retry |
+| init-retry-interval | Duration | delay between initialization retries (default 5s) |
 | limit | Unsigned Integer (Number) | amount of proxies in retrieved list (default 3) |
 | list-countries | String | list available countries and exit |
 | list-proxies | - | output proxy list and exit |
 | proxy | String | sets base proxy to use for all dial-outs. Format: `<http\|https\|socks5\|socks5h>://[login:password@]host[:port]` Examples: `http://user:password@192.168.1.1:3128`, `socks5://10.0.0.1:1080` |
 | proxy-type | String | proxy type (Datacenter: direct) (Residential: lum) (default "direct") |
 | resolver | String | DNS/DoH/DoT resolver to workaround Hola blocked hosts. See https://github.com/ameshkov/dnslookup/ for upstream DNS URL format. (default "https://cloudflare-dns.com/dns-query") |
-| rotate | Duration | rotate user ID once per given period (default 1h0m0s) |
+| rotate | Duration | rotate user ID once per given period (default 48h0m0s) |
 | timeout | Duration | timeout for network operations (default 35s) |
-| user-agent | String | value of User-Agent header in requests (default "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36") |
+| user-agent | String | value of User-Agent header in requests. Default: User-Agent of latest stable Chrome for Windows |
 | verbosity | Number | logging verbosity (10 - debug, 20 - info, 30 - warning, 40 - error, 50 - critical) (default 20) |

 ## See also
--- a/chromever.go
+++ b/chromever.go
@@ -0,0 +1,63 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/http"
+	"time"
+)
+
+type chromeVerResponse struct {
+	Versions [1]struct {
+		Version string `json:"version"`
+	} `json:"versions"`
+}
+
+const chromeVerURL = "https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/stable/versions?alt=json&orderBy=version+desc&pageSize=1&prettyPrint=false"
+
+func GetChromeVer(ctx context.Context, dialer ContextDialer) (string, error) {
+	if dialer == nil {
+		dialer = &net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}
+	}
+
+	transport := &http.Transport{
+		DialContext:           dialer.DialContext,
+		ForceAttemptHTTP2:     true,
+		MaxIdleConns:          100,
+		IdleConnTimeout:       90 * time.Second,
+		TLSHandshakeTimeout:   10 * time.Second,
+		ExpectContinueTimeout: 1 * time.Second,
+	}
+	defer transport.CloseIdleConnections()
+	httpClient := &http.Client{
+		Transport: transport,
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "GET", chromeVerURL, nil)
+	if err != nil {
+		return "", fmt.Errorf("chrome browser version request construction failed: %w", err)
+	}
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("chrome browser version request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return "", fmt.Errorf("chrome browser version request failed: bad status code: %d", resp.StatusCode)
+	}
+
+	dec := json.NewDecoder(resp.Body)
+	var chromeVerResp chromeVerResponse
+	if err := dec.Decode(&chromeVerResp); err != nil {
+		return "", fmt.Errorf("unable to decode chrome browser version response: %w", err)
+	}
+
+	return chromeVerResp.Versions[0].Version, nil
+}
--- a/credservice.go
+++ b/credservice.go
@@ -20,10 +20,9 @@ func CredService(interval, timeout time.Duration,
 	var mux sync.Mutex
 	var auth_header, user_uuid string
 	auth = func() (res string) {
-		(&mux).Lock()
-		res = auth_header
-		(&mux).Unlock()
-		return
+		mux.Lock()
+		defer mux.Unlock()
+		return auth_header
 	}

 	tx_res, tx_err := EnsureTransaction(context.Background(), timeout, func(ctx context.Context, client *http.Client) bool {
@@ -45,6 +44,9 @@ func CredService(interval, timeout time.Duration,
 		return
 	}
 	auth_header = basic_auth_header(TemplateLogin(user_uuid), tunnels.AgentKey)
+	if interval <= 0 {
+		return
+	}
 	go func() {
 		var (
 			err       error
@@ -74,9 +76,9 @@ func CredService(interval, timeout time.Duration,
 				logger.Critical("All rotation attempts failed.")
 				continue
 			}
-			(&mux).Lock()
+			mux.Lock()
 			auth_header = basic_auth_header(TemplateLogin(user_uuid), tuns.AgentKey)
-			(&mux).Unlock()
+			mux.Unlock()
 			logger.Info("Credentials rotated successfully.")
 		}
 	}()
--- a/extver.go
+++ b/extver.go
@@ -86,7 +86,7 @@ func GetExtVer(ctx context.Context,
 	defer resp.Body.Close()

 	if resp.StatusCode != 200 {
-		return "", fmt.Errorf("bad status code: %d", resp.StatusCode)
+		return "", fmt.Errorf("chrome web store: bad status code: %d", resp.StatusCode)
 	}

 	reader := io.LimitReader(resp.Body, 64*1024)
--- a/go.mod
+++ b/go.mod
@@ -1,37 +1,40 @@
 module github.com/Snawoot/hola-proxy

-go 1.23.2
+go 1.24.1
+
+toolchain go1.24.2

 require (
-	github.com/AdguardTeam/dnsproxy v0.73.2
+	github.com/AdguardTeam/dnsproxy v0.75.2
+	github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5
 	github.com/campoy/unique v0.0.0-20180121183637-88950e537e7e
 	github.com/cenkalti/backoff/v4 v4.3.0
 	github.com/google/uuid v1.6.0
-	github.com/miekg/dns v1.1.62
+	github.com/miekg/dns v1.1.65
 	github.com/refraction-networking/utls v1.6.7
-	golang.org/x/net v0.30.0
+	golang.org/x/net v0.39.0
 )

 require (
-	github.com/AdguardTeam/golibs v0.29.0 // indirect
-	github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da // indirect
-	github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635 // indirect
-	github.com/ameshkov/dnscrypt/v2 v2.3.0 // indirect
+	github.com/AdguardTeam/golibs v0.32.7 // indirect
+	github.com/ameshkov/dnscrypt/v2 v2.4.0 // indirect
 	github.com/ameshkov/dnsstamps v1.0.3 // indirect
-	github.com/andybalholm/brotli v1.1.0 // indirect
-	github.com/cloudflare/circl v1.4.0 // indirect
+	github.com/andybalholm/brotli v1.1.1 // indirect
+	github.com/cloudflare/circl v1.6.1 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
-	github.com/google/pprof v0.0.0-20241001023024-f4c0cfd0cf1d // indirect
-	github.com/klauspost/compress v1.17.10 // indirect
-	github.com/onsi/ginkgo/v2 v2.20.2 // indirect
+	github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/onsi/ginkgo/v2 v2.23.4 // indirect
 	github.com/quic-go/qpack v0.5.1 // indirect
-	github.com/quic-go/quic-go v0.47.0 // indirect
-	go.uber.org/mock v0.4.0 // indirect
-	golang.org/x/crypto v0.28.0 // indirect
-	golang.org/x/exp v0.0.0-20241004190924-225e2abe05e6 // indirect
-	golang.org/x/mod v0.21.0 // indirect
-	golang.org/x/sync v0.8.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
-	golang.org/x/text v0.19.0 // indirect
-	golang.org/x/tools v0.26.0 // indirect
+	github.com/quic-go/quic-go v0.50.1 // indirect
+	go.uber.org/automaxprocs v1.6.0 // indirect
+	go.uber.org/mock v0.5.1 // indirect
+	golang.org/x/crypto v0.37.0 // indirect
+	golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
+	golang.org/x/mod v0.24.0 // indirect
+	golang.org/x/sync v0.13.0 // indirect
+	golang.org/x/sys v0.32.0 // indirect
+	golang.org/x/text v0.24.0 // indirect
+	golang.org/x/tools v0.32.0 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,74 +1,78 @@
-github.com/AdguardTeam/dnsproxy v0.73.2 h1:O6wRXzHsnWL5TkhYcuLWCShVFF0X5RFI6qUmq1ZFVsQ=
-github.com/AdguardTeam/dnsproxy v0.73.2/go.mod h1:zD5WfTctbRvYYk8PS39h6/OT84NTu6QxKbAiBN5PUcI=
-github.com/AdguardTeam/golibs v0.29.0 h1:NG3eUXaUwRTgKssblolh4XHME8MQCCdogyIZxxv4bOU=
-github.com/AdguardTeam/golibs v0.29.0/go.mod h1:vjw1OVZG6BYyoqGRY88U4LCJLOMfhBFhU0UJBdaSAuQ=
-github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da h1:KjTM2ks9d14ZYCvmHS9iAKVt9AyzRSqNU1qabPih5BY=
-github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da/go.mod h1:eHEWzANqSiWQsof+nXEI9bUVUyV6F53Fp89EuCh2EAA=
-github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635 h1:52m0LGchQBBVqJRyYYufQuIbVqRawmubW3OFGqK1ekw=
-github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635/go.mod h1:lmLxL+FV291OopO93Bwf9fQLQeLyt33VJRUg5VJ30us=
-github.com/ameshkov/dnscrypt/v2 v2.3.0 h1:pDXDF7eFa6Lw+04C0hoMh8kCAQM8NwUdFEllSP2zNLs=
-github.com/ameshkov/dnscrypt/v2 v2.3.0/go.mod h1:N5hDwgx2cNb4Ay7AhvOSKst+eUiOZ/vbKRO9qMpQttE=
+github.com/AdguardTeam/dnsproxy v0.75.2 h1:bciOkzQh/GG8vcZGdFn6+rS3pu+2Npt9tbA4bNA/rsc=
+github.com/AdguardTeam/dnsproxy v0.75.2/go.mod h1:U/ouLftmXMIrkTAf8JepqbPuoQzsbXJo0Vxxn+LAdgA=
+github.com/AdguardTeam/golibs v0.32.7 h1:3dmGlAVgmvquCCwHsvEl58KKcRAK3z1UnjMnwSIeDH4=
+github.com/AdguardTeam/golibs v0.32.7/go.mod h1:bE8KV1zqTzgZjmjFyBJ9f9O5DEKO717r7e57j1HclJA=
+github.com/ameshkov/dnscrypt/v2 v2.4.0 h1:if6ZG2cuQmcP2TwSY+D0+8+xbPfoatufGlOQTMNkI9o=
+github.com/ameshkov/dnscrypt/v2 v2.4.0/go.mod h1:WpEFV2uhebXb8Jhes/5/fSdpmhGV8TL22RDaeWwV6hI=
 github.com/ameshkov/dnsstamps v1.0.3 h1:Srzik+J9mivH1alRACTbys2xOxs0lRH9qnTA7Y1OYVo=
 github.com/ameshkov/dnsstamps v1.0.3/go.mod h1:Ii3eUu73dx4Vw5O4wjzmT5+lkCwovjzaEZZ4gKyIH5A=
-github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
-github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+github.com/andybalholm/brotli v1.1.1 h1:PR2pgnyFznKEugtsUo0xLdDop5SKXd5Qf5ysW+7XdTA=
+github.com/andybalholm/brotli v1.1.1/go.mod h1:05ib4cKhjx3OQYUY22hTVd34Bc8upXjOLL2rKwwZBoA=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
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 github.com/campoy/unique v0.0.0-20180121183637-88950e537e7e/go.mod h1:9IOqJGCPMSc6E5ydlp5NIonxObaeu/Iub/X03EKPVYo=
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
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-github.com/cloudflare/circl v1.4.0 h1:BV7h5MgrktNzytKmWjpOtdYrf0lkkbF8YMlBGPhJQrY=
-github.com/cloudflare/circl v1.4.0/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
+github.com/cloudflare/circl v1.6.1 h1:zqIqSPIndyBh1bjLVVDHMPpVKqp8Su/V+6MeDzzQBQ0=
+github.com/cloudflare/circl v1.6.1/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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-go.uber.org/mock v0.4.0 h1:VcM4ZOtdbR4f6VXfiOpwpVJDL6lCReaZ6mw31wqh7KU=
-go.uber.org/mock v0.4.0/go.mod h1:a6FSlNadKUHUa9IP5Vyt1zh4fC7uAwxMutEAscFbkZc=
-golang.org/x/crypto v0.28.0 h1:GBDwsMXVQi34v5CCYUm2jkJvu4cbtru2U4TN2PSyQnw=
-golang.org/x/crypto v0.28.0/go.mod h1:rmgy+3RHxRZMyY0jjAJShp2zgEdOqj2AO7U0pYmeQ7U=
-golang.org/x/exp v0.0.0-20241004190924-225e2abe05e6 h1:1wqE9dj9NpSm04INVsJhhEUzhuDVjbcyKH91sVyPATw=
-golang.org/x/exp v0.0.0-20241004190924-225e2abe05e6/go.mod h1:NQtJDoLvd6faHhE7m4T/1IY708gDefGGjR/iUW8yQQ8=
-golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
-golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
-golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
-golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
-golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
-golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
-golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
-golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
-golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
-golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
-golang.org/x/tools v0.26.0 h1:v/60pFQmzmT9ExmjDv2gGIfi3OqfKoEP6I5+umXlbnQ=
-golang.org/x/tools v0.26.0/go.mod h1:TPVVj70c7JJ3WCazhD8OdXcZg/og+b9+tH/KxylGwH0=
-google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
-google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
+github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
+go.uber.org/automaxprocs v1.6.0 h1:O3y2/QNTOdbF+e/dpXNNW7Rx2hZ4sTIPyybbxyNqTUs=
+go.uber.org/automaxprocs v1.6.0/go.mod h1:ifeIMSnPZuznNm6jmdzmU3/bfk01Fe2fotchwEFJ8r8=
+go.uber.org/mock v0.5.1 h1:ASgazW/qBmR+A32MYFDB6E2POoTgOwT509VP0CT/fjs=
+go.uber.org/mock v0.5.1/go.mod h1:ge71pBPLYDk7QIi1LupWxdAykm7KIEFchiOqd6z7qMM=
+golang.org/x/crypto v0.37.0 h1:kJNSjF/Xp7kU0iB2Z+9viTPMW4EqqsrywMXLJOOsXSE=
+golang.org/x/crypto v0.37.0/go.mod h1:vg+k43peMZ0pUMhYmVAWysMK35e6ioLh3wB8ZCAfbVc=
+golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 h1:R84qjqJb5nVJMxqWYb3np9L5ZsaDtB+a39EqjV0JSUM=
+golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0/go.mod h1:S9Xr4PYopiDyqSyp5NjCrhFrqg6A5zA2E/iPHPhqnS8=
+golang.org/x/mod v0.24.0 h1:ZfthKaKaT4NrhGVZHO1/WDTwGES4De8KtWO0SIbNJMU=
+golang.org/x/mod v0.24.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
+golang.org/x/net v0.39.0 h1:ZCu7HMWDxpXpaiKdhzIfaltL9Lp31x/3fCP11bc6/fY=
+golang.org/x/net v0.39.0/go.mod h1:X7NRbYVEA+ewNkCNyJ513WmMdQ3BineSwVtN2zD/d+E=
+golang.org/x/sync v0.13.0 h1:AauUjRAJ9OSnvULf/ARrrVywoJDy0YS2AwQ98I37610=
+golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sys v0.32.0 h1:s77OFDvIQeibCmezSnk/q6iAfkdiQaJi4VzroCFrN20=
+golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.24.0 h1:dd5Bzh4yt5KYA8f9CJHCP4FB4D51c2c6JvN37xJJkJ0=
+golang.org/x/text v0.24.0/go.mod h1:L8rBsPeo2pSS+xqN0d5u2ikmjtmoJbDBT1b7nHvFCdU=
+golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
+golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/tools v0.32.0 h1:Q7N1vhpkQv7ybVzLFtTjvQya2ewbwNDZzUgfXGqtMWU=
+golang.org/x/tools v0.32.0/go.mod h1:ZxrU41P/wAbZD8EDa6dDCa6XfpkhJ7HFMjHJXfBDu8s=
+google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/holaapi.go
+++ b/holaapi.go
@@ -32,15 +32,19 @@ const CCGI_URL = "https://client.hola.org/client_cgi/"
 const VPN_COUNTRIES_URL = CCGI_URL + "vpn_countries.json"
 const BG_INIT_URL = CCGI_URL + "background_init"
 const ZGETTUNNELS_URL = CCGI_URL + "zgettunnels"
-const FALLBACK_CONF_URL = "https://www.dropbox.com/s/jemizcvpmf2qb9v/cloud_failover.conf?dl=1"
 const AGENT_SUFFIX = ".hola.org"

+var FALLBACK_CONF_URLS = []string{
+	"https://www.dropbox.com/s/jemizcvpmf2qb9v/cloud_failover.conf?dl=1",
+	"https://vdkd6nz8qr.s3.amazonaws.com/cloud_failover.conf",
+}
+
 var LOGIN_TEMPLATE = template.Must(template.New("LOGIN_TEMPLATE").Parse("user-uuid-{{.uuid}}-is_prem-{{.prem}}"))
 var TemporaryBanError = errors.New("temporary ban detected")
 var PermanentBanError = errors.New("permanent ban detected")
 var EmptyResponseError = errors.New("empty response")

-var userAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36"
+var userAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36"

 func SetUserAgent(ua string) {
 	userAgent = ua
@@ -274,7 +278,8 @@ func zgettunnels(ctx context.Context,

 func fetchFallbackConfig(ctx context.Context) (*FallbackConfig, error) {
 	client := httpClientWithProxy(nil)
-	confRaw, err := do_req(ctx, client, "", FALLBACK_CONF_URL, nil, nil)
+	fallbackConfURL := FALLBACK_CONF_URLS[rand.New(RandomSource).Intn(len(FALLBACK_CONF_URLS))]
+	confRaw, err := do_req(ctx, client, "", fallbackConfURL, nil, nil)
 	if err != nil {
 		return nil, err
 	}
--- a/main.go
+++ b/main.go
@@ -12,6 +12,7 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"strings"
 	"time"

 	tls "github.com/refraction-networking/utls"
@@ -52,6 +53,7 @@ type CLIArgs struct {
 	list_countries, list_proxies, use_trial bool
 	limit                                   uint
 	bind_address                            string
+	socksMode                               bool
 	verbosity                               int
 	timeout, rotate                         time.Duration
 	proxy_type                              string
@@ -64,8 +66,10 @@ type CLIArgs struct {
 	maxPause                                time.Duration
 	backoffInitial                          time.Duration
 	backoffDeadline                         time.Duration
+	initRetries                             int
+	initRetryInterval                       time.Duration
 	hideSNI                                 bool
-	userAgent                               string
+	userAgent                               *string
 }

 func parse_args() CLIArgs {
@@ -77,13 +81,16 @@ func parse_args() CLIArgs {
 	flag.BoolVar(&args.list_countries, "list-countries", false, "list available countries and exit")
 	flag.BoolVar(&args.list_proxies, "list-proxies", false, "output proxy list and exit")
 	flag.UintVar(&args.limit, "limit", 3, "amount of proxies in retrieved list")
-	flag.StringVar(&args.bind_address, "bind-address", "127.0.0.1:8080", "HTTP proxy listen address")
+	flag.StringVar(&args.bind_address, "bind-address", "127.0.0.1:8080", "proxy listen address")
+	flag.BoolVar(&args.socksMode, "socks-mode", false, "listen for SOCKS requests instead of HTTP")
 	flag.IntVar(&args.verbosity, "verbosity", 20, "logging verbosity "+
 		"(10 - debug, 20 - info, 30 - warning, 40 - error, 50 - critical)")
-	flag.DurationVar(&args.timeout, "timeout", 10*time.Second, "timeout for network operations")
-	flag.DurationVar(&args.rotate, "rotate", 1*time.Hour, "rotate user ID once per given period")
+	flag.DurationVar(&args.timeout, "timeout", 35*time.Second, "timeout for network operations")
+	flag.DurationVar(&args.rotate, "rotate", 48*time.Hour, "rotate user ID once per given period")
 	flag.DurationVar(&args.backoffInitial, "backoff-initial", 3*time.Second, "initial average backoff delay for zgettunnels (randomized by +/-50%)")
 	flag.DurationVar(&args.backoffDeadline, "backoff-deadline", 5*time.Minute, "total duration of zgettunnels method attempts")
+	flag.IntVar(&args.initRetries, "init-retries", 0, "number of attempts for initialization steps, zero for unlimited retry")
+	flag.DurationVar(&args.initRetryInterval, "init-retry-interval", 5*time.Second, "delay between initialization retries")
 	flag.StringVar(&args.proxy_type, "proxy-type", "direct", "proxy type: direct or lum") // or skip but not mentioned
 	// skip would be used something like this: `./bin/hola-proxy -proxy-type skip -force-port-field 24232 -country ua.peer` for debugging
 	flag.StringVar(&args.resolver, "resolver", "https://cloudflare-dns.com/dns-query",
@@ -95,7 +102,12 @@ func parse_args() CLIArgs {
 		"Format: <http|https|socks5|socks5h>://[login:password@]host[:port] "+
 		"Examples: http://user:password@192.168.1.1:3128, socks5://10.0.0.1:1080")
 	flag.StringVar(&args.caFile, "cafile", "", "use custom CA certificate bundle file")
-	flag.StringVar(&args.userAgent, "user-agent", GetUserAgent(), "value of User-Agent header in requests")
+	flag.Func("user-agent",
+		"value of User-Agent header in requests. Default: User-Agent of latest stable Chrome for Windows",
+		func(s string) error {
+			args.userAgent = &s
+			return nil
+		})
 	flag.BoolVar(&args.hideSNI, "hide-SNI", true, "hide SNI in TLS sessions with proxy server")
 	flag.Parse()
 	if args.country == "" {
@@ -129,6 +141,8 @@ func run() int {
 	proxyLogger := NewCondLogger(log.New(logWriter, "PROXY   : ",
 		log.LstdFlags|log.Lshortfile),
 		args.verbosity)
+	socksLogger := log.New(logWriter, "SOCKS   : ",
+		log.LstdFlags|log.Lshortfile)

 	var dialer ContextDialer = &net.Dialer{
 		Timeout:   30 * time.Second,
@@ -178,30 +192,64 @@ func run() int {
 		UpdateHolaDialer(dialer)
 	}

-	SetUserAgent(args.userAgent)
+	try := retryPolicy(args.initRetries, args.initRetryInterval, mainLogger)

 	if args.list_countries {
-		return print_countries(args.timeout)
-	}
-
-	if args.extVer == "" {
-		ctx, cl := context.WithTimeout(context.Background(), args.timeout)
-		defer cl()
-		extVer, err := GetExtVer(ctx, nil, HolaExtStoreID, dialer)
-		if err != nil {
-			mainLogger.Critical("Can't detect latest API version. Try to specify -ext-ver parameter. Error: %v", err)
-			return 8
-		}
-		args.extVer = extVer
-		mainLogger.Warning("Detected latest extension version: %q. Pass -ext-ver parameter to skip resolve and speedup startup", args.extVer)
-		cl()
-	}
-	if args.list_proxies {
-		return print_proxies(mainLogger, args.extVer, args.country, args.proxy_type, args.limit, args.timeout,
-			args.backoffInitial, args.backoffDeadline)
+		return print_countries(try, args.timeout)
 	}

 	mainLogger.Info("hola-proxy client version %s is starting...", version)
+
+	var userAgent string
+	if args.userAgent == nil {
+		err := try("get latest version of Chrome browser", func() error {
+			ctx, cl := context.WithTimeout(context.Background(), args.timeout)
+			defer cl()
+			ver, err := GetChromeVer(ctx, dialer)
+			if err != nil {
+				return err
+			}
+			mainLogger.Info("latest Chrome version is %q", ver)
+			majorVer, _, _ := strings.Cut(ver, ".")
+			userAgent = fmt.Sprintf(
+				"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%s.0.0.0 Safari/537.36",
+				majorVer)
+			mainLogger.Info("discovered latest Chrome User-Agent: %q", userAgent)
+			return err
+		})
+		if err != nil {
+			mainLogger.Critical("Can't detect latest Chrome version. "+
+				"Try to specify proper user agent with -user-agent parameter. Error: %v",
+				err)
+			return 8
+		}
+	} else {
+		userAgent = *args.userAgent
+	}
+	SetUserAgent(userAgent)
+
+	if args.extVer == "" {
+		err := try("get latest version of browser extension", func() error {
+			ctx, cl := context.WithTimeout(context.Background(), args.timeout)
+			defer cl()
+			extVer, err := GetExtVer(ctx, nil, HolaExtStoreID, dialer)
+			if err == nil {
+				mainLogger.Info("discovered latest browser extension version: %s", extVer)
+				args.extVer = extVer
+			}
+			return err
+		})
+		if err != nil {
+			mainLogger.Critical("Can't detect latest browser extension version. Try to specify -ext-ver parameter. Error: %v", err)
+			return 8
+		}
+		mainLogger.Warning("Detected latest extension version: %q. Pass -ext-ver parameter to skip resolve and speedup startup", args.extVer)
+	}
+	if args.list_proxies {
+		return print_proxies(try, mainLogger, args.extVer, args.country, args.proxy_type, args.limit, args.timeout,
+			args.backoffInitial, args.backoffDeadline)
+	}
+
 	mainLogger.Info("Constructing fallback DNS upstream...")
 	resolver, err := NewResolver(args.resolver, args.timeout)
 	if err != nil {
@@ -209,11 +257,16 @@ func run() int {
 		return 6
 	}

-	mainLogger.Info("Initializing configuration provider...")
-	auth, tunnels, err := CredService(args.rotate, args.timeout, args.extVer, args.country,
-		args.proxy_type, credLogger, args.backoffInitial, args.backoffDeadline)
+	var (
+		auth    AuthProvider
+		tunnels *ZGetTunnelsResponse
+	)
+	err = try("run credentials service", func() error {
+		auth, tunnels, err = CredService(args.rotate, args.timeout, args.extVer, args.country,
+			args.proxy_type, credLogger, args.backoffInitial, args.backoffDeadline)
+		return err
+	})
 	if err != nil {
-		mainLogger.Critical("Unable to instantiate credential service: %v", err)
 		return 4
 	}
 	endpoint, err := get_endpoint(tunnels, args.proxy_type, args.use_trial, args.force_port_field)
@@ -225,9 +278,19 @@ func run() int {
 	requestDialer := NewPlaintextDialer(endpoint.NetAddr(), endpoint.TLSName, caPool, args.hideSNI, dialer)
 	mainLogger.Info("Endpoint: %s", endpoint.URL().String())
 	mainLogger.Info("Starting proxy server...")
-	handler := NewProxyHandler(handlerDialer, requestDialer, auth, resolver, proxyLogger)
-	mainLogger.Info("Init complete.")
-	err = http.ListenAndServe(args.bind_address, handler)
+	if args.socksMode {
+		socks, initError := NewSocksServer(handlerDialer, socksLogger)
+		if initError != nil {
+			mainLogger.Critical("Failed to start: %v", err)
+			return 6
+		}
+		mainLogger.Info("Init complete.")
+		err = socks.ListenAndServe("tcp", args.bind_address)
+	} else {
+		handler := NewProxyHandler(handlerDialer, requestDialer, auth, resolver, proxyLogger)
+		mainLogger.Info("Init complete.")
+		err = http.ListenAndServe(args.bind_address, handler)
+	}
 	mainLogger.Critical("Server terminated with a reason: %v", err)
 	mainLogger.Info("Shutting down...")
 	return 0
@@ -236,3 +299,24 @@ func run() int {
 func main() {
 	os.Exit(run())
 }
+
+func retryPolicy(retries int, retryInterval time.Duration, logger *CondLogger) func(string, func() error) error {
+	return func(name string, f func() error) error {
+		var err error
+		for i := 1; retries <= 0 || i <= retries; i++ {
+			if i > 1 {
+				logger.Warning("Retrying action %q in %v...", name, retryInterval)
+				time.Sleep(retryInterval)
+			}
+			logger.Info("Attempting action %q, attempt #%d...", name, i)
+			err = f()
+			if err == nil {
+				logger.Info("Action %q succeeded on attempt #%d", name, i)
+				return nil
+			}
+			logger.Warning("Action %q failed: %v", name, err)
+		}
+		logger.Critical("All attempts for action %q have failed. Last error: %v", name, err)
+		return err
+	}
+}
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -1,18 +1,24 @@
 name: hola-proxy
-version: '1.13.4'
 summary: Standalone Hola proxy client.
 description: |
  Standalone Hola proxy client. Just run it and it'll start plain HTTP proxy server forwarding traffic via Hola proxies of your choice.

 confinement: strict
-base: core18
+base: core22
+adopt-info: hola-proxy

 parts:
  hola-proxy:
    plugin: go
-    source: .
+    build-snaps: [go/latest/stable]
    build-packages:
-      - gcc
+      - make
+      - git-core
+    source: https://github.com/Snawoot/hola-proxy
+    source-type: git
+    override-pull: |
+      craftctl default
+      craftctl set version="$(git describe --long --tags --always --match=v*.*.* | sed 's/v//')"
    override-build:
      make &&
      cp bin/hola-proxy "$SNAPCRAFT_PART_INSTALL"
--- a/socks_handler.go
+++ b/socks_handler.go
@@ -0,0 +1,17 @@
+package main
+
+import (
+	"log"
+
+	"github.com/armon/go-socks5"
+)
+
+func NewSocksServer(dialer ContextDialer, logger *log.Logger) (*socks5.Server, error) {
+	return socks5.New(&socks5.Config{
+		Rules: &socks5.PermitCommand{
+			EnableConnect: true,
+		},
+		Logger: logger,
+		Dial:   dialer.DialContext,
+	})
+}
--- a/utils.go
+++ b/utils.go
@@ -106,27 +106,33 @@ func proxyh2(ctx context.Context, leftreader io.ReadCloser, leftwriter io.Writer
 	return
 }

-func print_countries(timeout time.Duration) int {
+func print_countries(try func(string, func() error) error, timeout time.Duration) int {
 	var (
 		countries CountryList
 		err       error
+		tx_res    bool
+		tx_err    error
 	)
-	tx_res, tx_err := EnsureTransaction(context.Background(), timeout, func(ctx context.Context, client *http.Client) bool {
-		ctx1, cancel := context.WithTimeout(ctx, timeout)
-		defer cancel()
-		countries, err = VPNCountries(ctx1, client)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "Transaction error: %v. Retrying with the fallback mechanism...\n", err)
-			return false
+	err = try("list VPN countries", func() error {
+		tx_res, tx_err = EnsureTransaction(context.Background(), timeout, func(ctx context.Context, client *http.Client) bool {
+			ctx1, cancel := context.WithTimeout(ctx, timeout)
+			defer cancel()
+			countries, err = VPNCountries(ctx1, client)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Transaction error: %v. Retrying with the fallback mechanism...\n", err)
+				return false
+			}
+			return true
+		})
+		if tx_err != nil {
+			return fmt.Errorf("transaction recovery mechanism failure: %v", err)
 		}
-		return true
+		if !tx_res {
+			return errors.New("all fallback proxies failed.")
+		}
+		return nil
 	})
-	if tx_err != nil {
-		fmt.Fprintf(os.Stderr, "Transaction recovery mechanism failure: %v.\n", tx_err)
-		return 4
-	}
-	if !tx_res {
-		fmt.Fprintf(os.Stderr, "All attempts failed.")
+	if err != nil {
 		return 3
 	}
 	for _, code := range countries {
@@ -135,28 +141,34 @@ func print_countries(timeout time.Duration) int {
 	return 0
 }

-func print_proxies(logger *CondLogger, extVer, country string, proxy_type string,
+func print_proxies(try func(string, func() error) error, logger *CondLogger, extVer, country string, proxy_type string,
 	limit uint, timeout time.Duration, backoffInitial time.Duration, backoffDeadline time.Duration,
 ) int {
 	var (
 		tunnels   *ZGetTunnelsResponse
 		user_uuid string
 		err       error
+		tx_res    bool
+		tx_err    error
 	)
-	tx_res, tx_err := EnsureTransaction(context.Background(), timeout, func(ctx context.Context, client *http.Client) bool {
-		tunnels, user_uuid, err = Tunnels(ctx, logger, client, extVer, country, proxy_type, limit, timeout, backoffInitial, backoffDeadline)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "Transaction error: %v. Retrying with the fallback mechanism...\n", err)
-			return false
+	err = try("list proxies", func() error {
+		tx_res, tx_err = EnsureTransaction(context.Background(), timeout, func(ctx context.Context, client *http.Client) bool {
+			tunnels, user_uuid, err = Tunnels(ctx, logger, client, extVer, country, proxy_type, limit, timeout, backoffInitial, backoffDeadline)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Transaction error: %v. Retrying with the fallback mechanism...\n", err)
+				return false
+			}
+			return true
+		})
+		if tx_err != nil {
+			return fmt.Errorf("transaction recovery mechanism failure: %v", err)
 		}
-		return true
+		if !tx_res {
+			return errors.New("all fallback proxies failed.")
+		}
+		return nil
 	})
-	if tx_err != nil {
-		fmt.Fprintf(os.Stderr, "Transaction recovery mechanism failure: %v.\n", tx_err)
-		return 4
-	}
-	if !tx_res {
-		fmt.Fprintf(os.Stderr, "All attempts failed.")
+	if err != nil {
 		return 3
 	}
 	wr := csv.NewWriter(os.Stdout)
Author	SHA1	Message	Date
Vladislav Yarmak	25a5122a1c	initial socks5 support	2025-04-13 00:44:32 +03:00
Vladislav Yarmak	51a9f257e7	upd doc	2025-04-12 21:36:49 +03:00
Snawoot	5d3aa90a0f	Merge pull request #141 from Snawoot/auto_user_agent Discover fresh user-agent automatically	2025-04-12 21:34:07 +03:00
Vladislav Yarmak	f062f9310c	get rid of google services dependencies	2025-04-12 21:09:20 +03:00
Vladislav Yarmak	c019e84bbe	discover fresh user-agent automatically	2025-04-12 20:52:42 +03:00
Vladislav Yarmak	65fdac74bd	bump user-agent version	2025-04-12 17:03:48 +03:00
Vladislav Yarmak	15fea1bf78	deps upd	2025-04-12 15:33:22 +03:00
Snawoot	1a526a6381	Merge pull request #140 from Snawoot/deps_upd Dependencies update	2025-04-07 19:23:37 +03:00
Vladislav Yarmak	fcfc6212ee	go mod tidy	2025-04-07 19:22:25 +03:00
Vladislav Yarmak	cf49895825	dependencies update	2025-04-07 19:21:53 +03:00
Vladislav Yarmak	becf27500b	fix snap build	2025-03-28 18:53:05 +02:00
Vladislav Yarmak	b1671d4d19	upd doc	2025-02-24 20:13:31 +02:00
Vladislav Yarmak	2c22c3af35	bump snap version	2025-02-24 20:10:08 +02:00
Snawoot	55f8125044	Merge pull request #138 from Snawoot/deps_upd Deps upd	2025-02-24 20:09:23 +02:00
Vladislav Yarmak	c3691b208b	go mod tidy	2025-02-24 20:07:23 +02:00
Vladislav Yarmak	bfe19d9a85	deps update	2025-02-24 20:07:04 +02:00
Snawoot	3be0ad42f6	Merge pull request #137 from Snawoot/rotation_improvements rotate credentials less frequently	2025-02-21 16:48:50 +02:00
Vladislav Yarmak	5e00cfb499	rotate credentials less frequently	2025-02-21 16:48:09 +02:00
Snawoot	ba52035f5a	Merge pull request #136 from Snawoot/cred_rotation_fixes credservice: allow rotation to be disabled	2025-02-19 23:40:53 +02:00
Vladislav Yarmak	091bc05a30	credservice: allow rotation to be disabled	2025-02-19 19:16:16 +02:00
Snawoot	ebba7bca60	Merge pull request #135 from Snawoot/deps_upd Dependencies update	2025-02-19 19:06:25 +02:00
Vladislav Yarmak	99132778c9	go mod tidy	2025-02-19 15:16:16 +02:00
Vladislav Yarmak	02bfdea676	dependencies update	2025-02-19 15:15:42 +02:00
Snawoot	e2dbbb9ec3	Merge pull request #134 from Snawoot/deps_upd Deps upd	2025-01-07 15:20:58 +02:00
Vladislav Yarmak	81e06c2828	go mod tidy	2025-01-07 15:10:34 +02:00
Vladislav Yarmak	440bad2860	dependencies update	2025-01-07 15:07:35 +02:00
Snawoot	f9d2e8985f	Merge pull request #132 from Snawoot/dependabot/go_modules/golang.org/x/crypto-0.31.0 Bump golang.org/x/crypto from 0.28.0 to 0.31.0	2024-12-12 17:32:28 +02:00
dependabot[bot]	7775e5f54e	Bump golang.org/x/crypto from 0.28.0 to 0.31.0 Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.28.0 to 0.31.0. - [Commits](https://github.com/golang/crypto/compare/v0.28.0...v0.31.0) --- updated-dependencies: - dependency-name: golang.org/x/crypto dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>	2024-12-12 05:28:00 +00:00
Snawoot	8479a86de6	Merge pull request #131 from Snawoot/dependabot/go_modules/github.com/quic-go/quic-go-0.48.2 Bump github.com/quic-go/quic-go from 0.48.1 to 0.48.2	2024-12-10 12:53:29 +02:00
dependabot[bot]	3fccf32f7b	Bump github.com/quic-go/quic-go from 0.48.1 to 0.48.2 Bumps [github.com/quic-go/quic-go](https://github.com/quic-go/quic-go) from 0.48.1 to 0.48.2. - [Release notes](https://github.com/quic-go/quic-go/releases) - [Changelog](https://github.com/quic-go/quic-go/blob/master/Changelog.md) - [Commits](https://github.com/quic-go/quic-go/compare/v0.48.1...v0.48.2) --- updated-dependencies: - dependency-name: github.com/quic-go/quic-go dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>	2024-12-10 10:43:41 +00:00
Vladislav Yarmak	332db446b4	bump snap version	2024-11-25 19:07:19 +02:00
Vladislav Yarmak	8020fba8f3	use timeout defaults as specified in doc	2024-11-25 19:07:03 +02:00
Snawoot	f659f26bad	Merge pull request #130 from Snawoot/bump_timeout Bump timeout	2024-11-25 19:05:42 +02:00
Vladislav Yarmak	ce356ce015	bump timeout	2024-11-25 19:05:05 +02:00
Snawoot	e8cd8ba0a8	Merge pull request #129 from Snawoot/improve_fbc Add more fallback config endpoints	2024-11-25 19:03:44 +02:00
Vladislav Yarmak	191b1e7f51	Add more fallback config endpoints	2024-11-25 18:48:18 +02:00
Snawoot	6aa4fc334a	Merge pull request #127 from Snawoot/upd_doc upd doc	2024-11-05 22:02:53 +02:00
Vladislav Yarmak	124212a5e2	upd doc	2024-11-05 22:02:09 +02:00
Vladislav Yarmak	b120cb5462	bump snap version	2024-11-05 22:00:33 +02:00
Snawoot	972771b6af	Merge pull request #126 from Snawoot/deps_upd Dependencies update	2024-11-05 21:59:53 +02:00
Vladislav Yarmak	49b6ba9147	go mod tidy	2024-11-05 21:59:13 +02:00
Vladislav Yarmak	1e4c6684cc	dependencies update	2024-11-05 21:58:26 +02:00
Snawoot	569bf1d39f	Merge pull request #125 from Snawoot/try_hard Retry init	2024-11-05 21:44:43 +02:00
Vladislav Yarmak	92fdd4fb72	retry init	2024-11-05 21:38:04 +02:00
Vladislav Yarmak	d4d37bb354	upd doc	2024-10-07 21:09:53 +03:00