refactor(voice-call): split twilio provider

extensions/voice-call/src/providers/twilio/api.ts

@@ -0,0 +1,29 @@
+export async function twilioApiRequest<T = unknown>(params: {
+  baseUrl: string;
+  accountSid: string;
+  authToken: string;
+  endpoint: string;
+  body: Record<string, string>;
+  allowNotFound?: boolean;
+}): Promise<T> {
+  const response = await fetch(`${params.baseUrl}${params.endpoint}`, {
+    method: "POST",
+    headers: {
+      Authorization: `Basic ${Buffer.from(`${params.accountSid}:${params.authToken}`).toString("base64")}`,
+      "Content-Type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams(params.body),
+  });
+
+  if (!response.ok) {
+    if (params.allowNotFound && response.status === 404) {
+      return undefined as T;
+    }
+    const errorText = await response.text();
+    throw new Error(`Twilio API error: ${response.status} ${errorText}`);
+  }
+
+  const text = await response.text();
+  return text ? (JSON.parse(text) as T) : (undefined as T);
+}
+

extensions/voice-call/src/providers/twilio/webhook.ts

@@ -0,0 +1,30 @@
+import type { WebhookContext, WebhookVerificationResult } from "../../types.js";
+import { verifyTwilioWebhook } from "../../webhook-security.js";
+
+import type { TwilioProviderOptions } from "../twilio.js";
+
+export function verifyTwilioProviderWebhook(params: {
+  ctx: WebhookContext;
+  authToken: string;
+  currentPublicUrl?: string | null;
+  options: TwilioProviderOptions;
+}): WebhookVerificationResult {
+  const result = verifyTwilioWebhook(params.ctx, params.authToken, {
+    publicUrl: params.currentPublicUrl || undefined,
+    allowNgrokFreeTier: params.options.allowNgrokFreeTier ?? true,
+    skipVerification: params.options.skipVerification,
+  });
+
+  if (!result.ok) {
+    console.warn(`[twilio] Webhook verification failed: ${result.reason}`);
+    if (result.verificationUrl) {
+      console.warn(`[twilio] Verification URL: ${result.verificationUrl}`);
+    }
+  }
+
+  return {
+    ok: result.ok,
+    reason: result.reason,
+  };
+}
+