mirror of
https://github.com/lukaszraczylo/mcp-captcharesolver.git
synced 2026-10-13 00:48:34 +00:00
lukaszraczylo
8bfd64f7ed
- detect: recaptcha_v3 now suppresses recaptcha_v2 (hidden g-recaptcha div on v3 pages no longer mis-detected as LLM-solvable); funcaptcha drops over-broad bare "arkose" substring
- llm/gemini: stub methods return ErrUnsupported{Provider:"gemini"} so audio handler errors.As guard catches it; drop unused fmt import
- mcp/tools: remove gemini from audio capability (stub); pick audio filename (.wav/.mp3) from sniffed media type; schema notes for browser/actions no longer advertise unimplemented options
- imageutil: fetchURL uses a package client with 30s Timeout instead of http.DefaultClient
- captcha/json: extractJSON brace-counts to return the first balanced object (handles prose, markdown fences, example-before-real)
- config: remove dead CAPTCHA_LLM_TEMPERATURE / Config.Temperature; solving is fixed at temperature 0
- stealth: Action.Type doc comment drops nonexistent scroll case
56 lines
2.0 KiB
Go
56 lines
2.0 KiB
Go
package captcha
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import (
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"regexp"
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"strings"
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)
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var (
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reRecaptchaV3 = regexp.MustCompile(`recaptcha/api\.js\?render=([\w-]+)`)
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reSitekey = regexp.MustCompile(`data-sitekey="([^"]+)"`)
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rePkey = regexp.MustCompile(`data-pkey="([^"]+)"`)
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)
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// DetectHTML scans raw page HTML and returns deterministic detections for known
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// captcha providers. v3/Turnstile are reported with LLMSolvable=false.
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func DetectHTML(html string) []Detection {
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var out []Detection
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// reCAPTCHA v3 first (script render param). v3 has no visual challenge.
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if m := reRecaptchaV3.FindStringSubmatch(html); m != nil {
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out = append(out, Detection{
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Type: "recaptcha_v3", Sitekey: m[1], LLMSolvable: false,
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Notes: "score/behavioral — not LLM-solvable; needs browser reputation",
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})
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} else if strings.Contains(html, "g-recaptcha") || strings.Contains(html, "google.com/recaptcha/api2") {
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out = append(out, Detection{Type: "recaptcha_v2", Sitekey: firstSitekey(html), LLMSolvable: true,
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Notes: "image-grid; LLM returns tiles, caller clicks + harvests token"})
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}
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if strings.Contains(html, "h-captcha") || strings.Contains(html, "hcaptcha.com") {
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out = append(out, Detection{Type: "hcaptcha", Sitekey: firstSitekey(html), LLMSolvable: true,
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Notes: "image-grid; LLM returns tiles, caller clicks + harvests token"})
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}
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if strings.Contains(html, "cf-turnstile") || strings.Contains(html, "challenges.cloudflare.com") {
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out = append(out, Detection{Type: "turnstile", Sitekey: firstSitekey(html), LLMSolvable: false,
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Notes: "proof-of-work/behavioral — not LLM-solvable"})
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}
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if strings.Contains(html, "arkoselabs") || strings.Contains(html, "funcaptcha") {
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out = append(out, Detection{Type: "funcaptcha", Sitekey: firstPkey(html), LLMSolvable: true,
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Notes: "rotation/visual — best-effort"})
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}
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return out
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}
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func firstSitekey(html string) string {
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if m := reSitekey.FindStringSubmatch(html); m != nil {
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return m[1]
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}
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return ""
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}
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func firstPkey(html string) string {
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if m := rePkey.FindStringSubmatch(html); m != nil {
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return m[1]
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}
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return ""
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}
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