extend FB access token discovery (#1407)

* extend FB access token discovery

* validate config

* set upper 40

* set upper 40

cmd/generate/config/rules/facebook.go

@@ -32,7 +32,7 @@ func FacebookAccessToken() *config.Rule {
 	r := config.Rule{
 		Description: "Discovered a Facebook Access Token, posing a risk of unauthorized access to Facebook accounts and personal data exposure.",
 		RuleID:      "facebook-access-token",
-		Regex:       generateUniqueTokenRegex(`\d{15,16}\|[0-9a-z\-_]{27}`, true),
+		Regex:       generateUniqueTokenRegex(`\d{15,16}(\||%)[0-9a-z\-_]{27,40}`, true),
 	}
 
 	// validate

config/gitleaks.toml

@@ -396,7 +396,7 @@ keywords = [
 [[rules]]
 id = "facebook-access-token"
 description = "Discovered a Facebook Access Token, posing a risk of unauthorized access to Facebook accounts and personal data exposure."
-regex = '''(?i)\b(\d{15,16}\|[0-9a-z\-_]{27})(?:['|\"|\n|\r|\s|\x60|;]|$)'''
+regex = '''(?i)\b(\d{15,16}(\||%)[0-9a-z\-_]{27,40})(?:['|\"|\n|\r|\s|\x60|;]|$)'''
 
 [[rules]]
 id = "facebook-page-access-token"