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Update vk_captcha.go

pull/26/head
kiper292 3 months ago
parent
b01249e8be
commit
f41f75d10b
1 changed files with 32 additions and 60 deletions
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  1. 92
      client/vk_captcha.go

92
client/vk_captcha.go
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@ -91,11 +91,8 @@ func ExtractCaptchaData(errResp map[string]interface{}) (*VkCaptchaData, bool) {
func SolveVkCaptcha(ctx context.Context, captchaData *VkCaptchaData) (string, error) {
log.Printf("[Captcha] Solving Not Robot Captcha...")
// HAR: Token 2 error → Captcha HTML = 2.72s (browser page load + user perception)
time.Sleep(1500*time.Millisecond + time.Duration(rand.Intn(1000))*time.Millisecond)
// Fetch captcha HTML (browser redirect)
powInput, difficulty, cookies, err := fetchCaptchaPowInput(ctx, captchaData.RedirectURI)
powInput, difficulty, err := fetchCaptchaPowInput(ctx, captchaData.RedirectURI)
if err != nil {
return "", fmt.Errorf("failed to fetch powInput: %w", err)
}
@ -105,8 +102,8 @@ func SolveVkCaptcha(ctx context.Context, captchaData *VkCaptchaData) (string, er
hash := solveCaptchaPoW(powInput, difficulty)
log.Printf("[Captcha] PoW solved: hash=%s", hash)
// Call captchaNotRobot API with cookies from captcha page
successToken, err := callCaptchaNotRobotAPI(ctx, captchaData.SessionToken, hash, cookies)
// Call captchaNotRobot API
successToken, err := callCaptchaNotRobotAPI(ctx, captchaData.SessionToken, hash)
if err != nil {
return "", fmt.Errorf("captchaNotRobot API failed: %w", err)
}
@ -115,10 +112,10 @@ func SolveVkCaptcha(ctx context.Context, captchaData *VkCaptchaData) (string, er
return successToken, nil
}
func fetchCaptchaPowInput(ctx context.Context, redirectURI string) (string, int, string, error) {
func fetchCaptchaPowInput(ctx context.Context, redirectURI string) (string, int, error) {
req, err := http.NewRequestWithContext(ctx, "GET", redirectURI, nil)
if err != nil {
return "", 0, "", err
return "", 0, err
}
req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36")
req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")
@ -133,25 +130,13 @@ func fetchCaptchaPowInput(ctx context.Context, redirectURI string) (string, int,
resp, err := client.Do(req)
if err != nil {
return "", 0, "", err
return "", 0, err
}
defer resp.Body.Close()
// Capture Set-Cookie headers
var cookieValues []string
for _, setCookie := range resp.Header.Values("Set-Cookie") {
// Extract just the cookie name=value part (before ; expires= or ; path=)
cookieParts := strings.Split(setCookie, ";")
cookieValues = append(cookieValues, strings.TrimSpace(cookieParts[0]))
}
cookies := strings.Join(cookieValues, "; ")
if cookies != "" {
log.Printf("[Captcha] Captcha page set %d cookie(s)", len(cookieValues))
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return "", 0, "", err
return "", 0, err
}
html := string(body)
@ -160,7 +145,7 @@ func fetchCaptchaPowInput(ctx context.Context, redirectURI string) (string, int,
powInputRe := regexp.MustCompile(`const\s+powInput\s*=\s*"([^"]+)"`)
powInputMatch := powInputRe.FindStringSubmatch(html)
if len(powInputMatch) < 2 {
return "", 0, "", fmt.Errorf("powInput not found in captcha HTML")
return "", 0, fmt.Errorf("powInput not found in captcha HTML")
}
powInput := powInputMatch[1]
@ -174,7 +159,7 @@ func fetchCaptchaPowInput(ctx context.Context, redirectURI string) (string, int,
}
}
return powInput, difficulty, cookies, nil
return powInput, difficulty, nil
}
func solveCaptchaPoW(powInput string, difficulty int) string {
@ -190,7 +175,7 @@ func solveCaptchaPoW(powInput string, difficulty int) string {
return ""
}
func callCaptchaNotRobotAPI(ctx context.Context, sessionToken, hash, cookies string) (string, error) {
func callCaptchaNotRobotAPI(ctx context.Context, sessionToken, hash string) (string, error) {
vkReq := func(method string, postData string) (map[string]interface{}, error) {
requestURL := fmt.Sprintf("https://api.vk.ru/method/%s?v=%s", method, vkCaptchaNotRobotVer)
@ -199,24 +184,20 @@ func callCaptchaNotRobotAPI(ctx context.Context, sessionToken, hash, cookies str
return nil, err
}
// Headers matching HAR capture exactly
req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36")
req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36")
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("Accept", "*/*")
req.Header.Set("Accept-Language", "en-US,en;q=0.9")
req.Header.Set("Origin", "https://id.vk.ru")
req.Header.Set("Referer", "https://id.vk.ru/")
req.Header.Set("sec-ch-ua-platform", `"Windows"`)
req.Header.Set("sec-ch-ua", `"Chromium";v="146", "Not-A.Brand";v="24", "Google Chrome";v="146"`)
req.Header.Set("Origin", "https://vk.ru")
req.Header.Set("Referer", "https://vk.ru/")
req.Header.Set("sec-ch-ua-platform", "\"Linux\"")
req.Header.Set("sec-ch-ua", "\"Chromium\";v=\"146\", \"Not-A.Brand\";v=\"24\", \"Google Chrome\";v=\"146\"")
req.Header.Set("sec-ch-ua-mobile", "?0")
req.Header.Set("DNT", "1")
req.Header.Set("Sec-Fetch-Site", "same-site")
req.Header.Set("Sec-Fetch-Mode", "cors")
req.Header.Set("Sec-Fetch-Dest", "empty")
req.Header.Set("DNT", "1")
req.Header.Set("Priority", "u=1, i")
// Add cookies captured from captcha page
if cookies != "" {
req.Header.Set("Cookie", cookies)
}
req.Header.Set("Sec-GPC", "1")
client := &http.Client{
Timeout: 20 * time.Second,
@ -253,46 +234,38 @@ func callCaptchaNotRobotAPI(ctx context.Context, sessionToken, hash, cookies str
if err != nil {
return "", fmt.Errorf("settings failed: %w", err)
}
// HAR: settings → componentDone = 0.19s
time.Sleep(100*time.Millisecond + time.Duration(rand.Intn(100))*time.Millisecond)
time.Sleep(200 * time.Millisecond)
// Step 2: componentDone
log.Printf("[Captcha] Step 2/4: componentDone")
browserFp := fmt.Sprintf("%032x", uint64(time.Now().UnixNano()))
browserFp := fmt.Sprintf("%032x", rand.Int63())
deviceJSON := `{"screenWidth":1920,"screenHeight":1080,"screenAvailWidth":1920,"screenAvailHeight":1032,"innerWidth":1920,"innerHeight":945,"devicePixelRatio":1,"language":"en-US","languages":["en-US"],"webdriver":false,"hardwareConcurrency":16,"deviceMemory":8,"connectionEffectiveType":"4g","notificationsPermission":"denied"}`
componentData := baseParams + fmt.Sprintf("&browser_fp=%s&device=%s", browserFp, url.QueryEscape(deviceJSON))
_, err = vkReq("captchaNotRobot.componentDone", componentData)
if err != nil {
return "", fmt.Errorf("componentDone failed: %w", err)
}
// HAR: componentDone → check ≈ 1.95s + statEvents delay ≈ 3.2s total
time.Sleep(1500*time.Millisecond + time.Duration(rand.Intn(1000))*time.Millisecond)
time.Sleep(200 * time.Millisecond)
// Step 3: check
log.Printf("[Captcha] Step 3/4: check")
cursorJSON := `[{"x":950,"y":500},{"x":945,"y":510},{"x":940,"y":520},{"x":938,"y":525},{"x":938,"y":525}]`
answer := base64.StdEncoding.EncodeToString([]byte("{}")) // e30=
// Generate random connectionDownlink values (simulating Network Information API)
// HAR shows browser repeats the same value 7 times: [9.8,9.8,9.8,9.8,9.8,9.8,9.8]
baseDownlink := 8.0 + rand.Float64()*4.0 // Random in [8.0, 12.0) for typical WiFi
downlinkStr := fmt.Sprintf("%.1f", baseDownlink)
connectionDownlink := "[" + downlinkStr + "," + downlinkStr + "," + downlinkStr + "," + downlinkStr + "," + downlinkStr + "," + downlinkStr + "," + downlinkStr + "]"
checkData := baseParams + fmt.Sprintf(
"&accelerometer=%s&gyroscope=%s&motion=%s&cursor=%s&taps=%s&connectionRtt=%s&connectionDownlink=%s"+
"&browser_fp=%s&hash=%s&answer=%s&debug_info=%s",
url.QueryEscape("[]"), // accelerometer
url.QueryEscape("[]"), // gyroscope
url.QueryEscape("[]"), // motion
url.QueryEscape(cursorJSON), // cursor
url.QueryEscape("[]"), // taps
url.QueryEscape("[]"), // connectionRtt
url.QueryEscape(connectionDownlink),
browserFp, // browser_fp
hash, // hash (PoW result)
answer, // answer
vkDebugInfo, // debug_info (static)
url.QueryEscape("[]"), // accelerometer
url.QueryEscape("[]"), // gyroscope
url.QueryEscape("[]"), // motion
url.QueryEscape(cursorJSON), // cursor
url.QueryEscape("[]"), // taps
url.QueryEscape("[]"), // connectionRtt
url.QueryEscape("[9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5,9.5]"), // connectionDownlink (16 values as in HAR)
browserFp, // browser_fp
hash, // hash (PoW result)
answer, // answer
vkDebugInfo, // debug_info (static)
)
checkResp, err := vkReq("captchaNotRobot.check", checkData)
@ -314,8 +287,7 @@ func callCaptchaNotRobotAPI(ctx context.Context, sessionToken, hash, cookies str
if !ok || successToken == "" {
return "", fmt.Errorf("success_token not found in check response: %v", checkResp)
}
// HAR: check → endSession = 0.48s
time.Sleep(200*time.Millisecond + time.Duration(rand.Intn(300))*time.Millisecond)
time.Sleep(200 * time.Millisecond)
// Step 4: endSession
log.Printf("[Captcha] Step 4/4: endSession")

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