Add cloudflare turnstile

src/app/api/contact/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from "next/server";
 
-import { rateLimited, sendEmail } from "@/lib/server-utils";
+import { rateLimited, sendEmail, validateTurnstile } from "@/lib/server-utils";
 import { trimTooLong } from "@/lib/strings";
 
 import validator from "validator";
@@ -14,31 +14,24 @@ const validateInput = (data: any) => {
         typeof data.name !== "string" ||
         typeof data.email !== "string"
       ) ||
-      typeof data.message !== "string"
+      typeof data.message !== "string" ||
+      typeof data["cf-turnstile-response"] !== "string"
     ) ||
     !data.anon &&
     (
       !data.name.trim() ||
       !data.email.trim() ||
       !validator.isEmail(data.email) ||
-      data.email.length > 30
+      data.email.length > 50
     ) ||
-    !data.message.trim()
+    !data.message.trim(),
+    !data["cf-turnstile-response"].trim()
   )
 }
 
 export async function POST(req: NextRequest) {
   const agent = req.headers.get("x-forwarded-for") ?? "damn";
   
-  const isRateLimited = await rateLimited(agent);
-  
-  if (isRateLimited) {
-    return NextResponse.json(
-      { error: "Too many requests" },
-      { status: 429 }
-    );
-  }
-
   let data;
   try {
     data = await req.json();
@@ -49,6 +42,33 @@ export async function POST(req: NextRequest) {
     );
   }
 
+  const cf_token = data["cf-turnstile-response"];
+
+  if (typeof cf_token !== 'string' || !cf_token.trim()) {
+    return NextResponse.json(
+      { error: "Captcha Failed" },
+      { status: 403 }
+    );
+  }
+
+  const captchaVerified = await validateTurnstile(cf_token, agent);
+
+  if (!captchaVerified) {
+    return NextResponse.json(
+      { error: "Captcha Failed" },
+      { status: 403 }
+    );
+  }
+
+  const isRateLimited = await rateLimited(agent);
+  
+  if (isRateLimited) {
+    return NextResponse.json(
+      { error: "Too many requests" },
+      { status: 429 }
+    );
+  }
+
   if (validateInput(data)) {
     return NextResponse.json(
       { error: "Invalid input" },

src/app/globals.css

@@ -5,6 +5,7 @@
 :root {
   --background: #0F0A1F;
   --primary: #F48120;
+  --primary-darker: #cc6d1f;
 }
 
 @keyframes click-bounce {

src/components/form/contact-form.tsx

@@ -5,6 +5,7 @@ import axios, { AxiosError } from "axios";
 
 import { CheckboxInput, Input, Submit } from "./form";
 import { FloatingLabel } from "../floating-label";
+import { CloudflareTurnstile } from "../turnstile";
 
 export default function ContactForm() {
   const [anon, setAnon] = useState(false);
@@ -32,7 +33,8 @@ export default function ContactForm() {
       anon,
       name: formData.get('name')?.toString(),
       email: formData.get('email')?.toString(),
-      message: formData.get('message')!.toString()
+      message: formData.get('message')!.toString(),
+      "cf-turnstile-response": formData.get('cf-turnstile-response')?.toString()
     }
     
     if ((!data.name || !data.email) && !data.anon) {
@@ -45,6 +47,11 @@ export default function ContactForm() {
       return;
     }
     
+    if (!data["cf-turnstile-response"]) {
+      setErrorMsg("Please fill in the captcha");
+      return;
+    }
+
     setStatus('loading');
 
     try {
@@ -59,6 +66,7 @@ export default function ContactForm() {
 
       if (err instanceof AxiosError) {
         if (err.status == 429) setErrorMsg("Limit reached, please try again later...");
+        if (err.status == 403) setErrorMsg("Captcha failed or expired, please try again later");
       }
     }
   }
@@ -100,6 +108,7 @@ export default function ContactForm() {
           placeholder="Tell me something cool, or ask question"
         />
       </label>
+      <CloudflareTurnstile />
       <div className="text-primary">{errorMsg}</div>
       <Submit disabled={status === "loading"} className="w-full">{statusMsg[status]}</Submit>
     </form>

src/components/form/form.tsx

@@ -18,7 +18,7 @@ export function Submit ({ className, type, ...props }: React.ComponentProps<'but
   return (
     <button
       type={'submit'}
-      className={clsx("block py-3 px-4 bg-primary text-background", className)}
+      className={clsx("block py-3 px-4 bg-primary disabled:bg-primary-darker text-background", className)}
       {...props}
     />
   )

src/lib/server-utils.ts

@@ -19,11 +19,10 @@ export async function rateLimited(clientId: string) {
 export async function validateTurnstile(token: string, remoteip: string) {
   const body = new URLSearchParams({
     secret: process.env.CF_SECRET_KEY!,
-    token,
+    response: token,
     remoteip
   })
 
-  try {
   const res = await axios.post("https://challenges.cloudflare.com/turnstile/v0/siteverify", body, {
     headers: {
       "Content-Type": "application/x-www-form-urlencoded"
@@ -31,15 +30,11 @@ export async function validateTurnstile(token: string, remoteip: string) {
   });
 
   const result = await res.data;
-    console.log(result);
+  return result.success === true;
-  } catch (error) {
-    console.error("Turnstile validation error:", error);
-    return { success: false, "error-codes": ["internal-error"] };
-  }
 }
 
 export async function sendEmail(name: string, email: string, message: string) {
-  const rawMessage = trimTooLong(message, 5000);
+  const rawMessage = `From: ${name}\nEmail: ${email}\n${trimTooLong(message, 5000)}`;
   const messageHTML = sanitize(escape(rawMessage));
 
   await transporter.sendMail({

tailwind.config.ts

@@ -12,6 +12,7 @@ const config: Config = {
         background: "var(--background)",
         foreground: "var(--foreground)",
         primary: "var(--primary)",
+        'primary-darker': "var(--primary-darker)",
       },
     },
     screens: {