[+] Turnstile utility class

src/main/java/icu/samnyan/aqua/net/utils/Turnstile.kt

@@ -0,0 +1,45 @@
+package icu.samnyan.aqua.net.utils
+
+import ext.Bool
+import ext.HTTP
+import ext.Str
+import io.ktor.client.call.*
+import io.ktor.client.request.*
+import io.ktor.client.request.forms.*
+import io.ktor.http.*
+import kotlinx.serialization.Serializable
+import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.context.annotation.Configuration
+import org.springframework.stereotype.Service
+
+@Configuration
+@ConfigurationProperties(prefix = "turnstile")
+class TurnstileProperties {
+    var enable: Bool = false
+
+    lateinit var secret: Str
+}
+
+@Service
+class CaptchaService(val props: TurnstileProperties) {
+    @Serializable
+    data class Outcome(val success: Boolean)
+
+    suspend fun validate(captcha: Str?, ip: Str): Boolean {
+        if (!props.enable) return true
+        if (captcha == null) return false
+
+        val outcome: Outcome = HTTP.post("https://challenges.cloudflare.com/turnstile/v0/siteverify") {
+            setBody(
+                FormDataContent(Parameters.build {
+                    append("secret", props.secret)
+                    append("response", captcha)
+                    append("remoteip", ip)
+                })
+            )
+        }.body()
+
+        return outcome.success
+    }
+}
+