WIP - Proxy outgoing messages

app/Http/Controllers/TwilioProxyController.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Exception;
+use Illuminate\Auth\AuthenticationException;
+use Twilio\Rest\Client;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Hash;
+
+class TwilioProxyController extends Controller
+{
+    public function __invoke(Request $request)
+    {
+        $validated = (object) $request->validate([
+            'key' => 'required|string',
+            'to' => 'required|string|phone:US',
+            'from' => 'required|string|phone:US',
+            'message' => 'required|string|max:160',
+        ]);
+
+        $this->validateSenderKey($validated->key, $validated->from);
+
+        $twilioClient = new Client(
+            config('services.twilio.sid'),
+            config('services.twilio.token')
+        );
+
+        try {
+            $message = $twilioClient->messages->create(
+                $validated->to,
+                [
+                    'from' => $validated->from,
+                    'body' => $validated->message,
+                ]
+            );
+
+            return response()->json(['success' => true, 'message_sid' => $message->sid]);
+        } catch (\Exception $e) {
+            return response()->json(['error' => $e->getMessage()], 500);
+        }
+    }
+
+    protected function validateSenderKey(string $key, string $from): void
+    {
+        if (
+            ! Hash::check($from, $key)
+        ) {
+            throw new AuthenticationException('Key is invalid for this sending number.');
+        }
+    }
+}

config/services.php

@@ -15,6 +15,7 @@
     */
 
     'twilio' => [
+        'sid' => env('TWILIO_SID', ''),
         'auth_tokens' => explode(',', env('TWILIO_AUTH_TOKENS', env('TWILIO_AUTH_TOKEN', ''))),
     ],
 

routes/api.php

@@ -1,9 +1,12 @@
 <?php
 
-use App\Http\Controllers\Webhooks\TwilioWebhookController;
-use App\Http\Middleware\TwilioSignatureMiddleware;
 use Illuminate\Support\Facades\Route;
+use App\Http\Controllers\TwilioProxyController;
+use App\Http\Controllers\Webhooks\TwilioWebhookController;
+
+Route::post('/proxy/twilio', TwilioProxyController::class);
 
 Route::post('/webhooks/twilio', TwilioWebhookController::class)
     // ->middleware(TwilioSignatureMiddleware::class)
     ->name('webhooks.twilio');
+