Add private email domain whitelist configuration

README.md

@@ -257,6 +257,14 @@ These variables are exposed to the client-side React application:
   - Enable debug mode (mocks external services)
   - Set to any value to enable
 
+- **Config table: `white_email_domain` / `private_white_email_domain`**
+  - `white_email_domain`: Global email domain whitelist used when requesting email verification codes. Stored in the `config` table as JSON array string, for example: `["gmail.com"]`.
+  - `private_white_email_domain`: Higher-priority private email domain whitelist checked before `white_email_domain`. Also stored in the `config` table as JSON array string, for example: `["corp.example.com", "partner.org"]`.
+  - Configuration example in `config` table:
+    - `c_key = 'white_email_domain'`, `c_val = '["gmail.com"]'`
+    - `c_key = 'private_white_email_domain'`, `c_val = '["corp.example.com", "partner.org"]'`
+  - If an email domain is present in `private_white_email_domain`, it is accepted even if not listed in `white_email_domain`. If it is in neither list, the API responds with the same `error_api_email_domain` error and `white_email_domain` data as before.
+
 ## Running the Application
 
 ### Development Mode

helpers/database.js

@@ -234,12 +234,21 @@ export function clearConfigCache(key) {
  * Returns default ['gmail.com'] if config not found or parse fails
  */
 export async function getWhiteEmailDomain() {
+  const domains = await getConfigValue('white_email_domain', ['gmail.com'], 300);
+  return Array.isArray(domains) ? domains : ['gmail.com'];
+}
+
+/**
+ * Get private white email domain list from config table
+ * Returns default [] if config not found or parse fails
+ */
+export async function getPrivateWhiteEmailDomain() {
   const domains = await getConfigValue(
-    'white_email_domain',
-    ['gmail.com'],
+    'private_white_email_domain',
+    [],
     300
   );
-  return Array.isArray(domains) ? domains : ['gmail.com'];
+  return Array.isArray(domains) ? domains : [];
 }
 
 export default {
@@ -268,6 +277,7 @@ export default {
   findLastSendSmsByCountryNumber,
   countTryNumber,
   getWhiteEmailDomain,
+  getPrivateWhiteEmailDomain,
   getConfigValue,
   clearConfigCache,
 };

routes/apiHandlers.js

@@ -154,13 +154,16 @@ async function handleRequestEmailCode(req) {
   }
   // white list check
   const emailDomain = email.split('@')[1];
-  const whiteEmailDomains = await database.getWhiteEmailDomain();
-  if (!whiteEmailDomains.includes(emailDomain)) {
-    throw new ApiError({
-      type: 'error_api_email_domain',
-      field: 'email',
-      data: { whiteEmailDomains },
-    });
+  const privateWhiteEmailDomains = await database.getPrivateWhiteEmailDomain();
+  if (!privateWhiteEmailDomains.includes(emailDomain)) {
+    const whiteEmailDomains = await database.getWhiteEmailDomain();
+    if (!whiteEmailDomains.includes(emailDomain)) {
+      throw new ApiError({
+        type: 'error_api_email_domain',
+        field: 'email',
+        data: { whiteEmailDomains },
+      });
+    }
   }
   // account creation policy check
   const isEnoughPendingClaimedAccounts =