Do not expose Contact Numbers settings panel when no SMS support configured

Summary:
It's useless without SMS support and only exposed to the user themselves.

Closes T15486

Test Plan:
Before and after applying this patch,
* Try to access the list of your contact numbers at `/settings/panel/contact/`
* Try to access an existing, previously created contact number at `/auth/contact/1/`
* Try to add a contact number at `/auth/contact/edit/`
* Go to e.g. `/settings/panel/datetime` and check the "Authentication" section in the left sidebar for {nav icon=hashtag, name=Contact Numbers}

Reviewers: O1 Blessed Committers, speck

Reviewed By: O1 Blessed Committers, speck

Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Maniphest Tasks: T15486

Differential Revision: https://we.phorge.it/D25452

src/applications/auth/controller/contact/PhabricatorAuthContactNumberDisableController.php

@@ -7,6 +7,8 @@ final class PhabricatorAuthContactNumberDisableController
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
+    $sms_auth_factor = new PhabricatorSMSAuthFactor();
+    if ($sms_auth_factor->isSMSMailerConfigured()) {
       $number = id(new PhabricatorAuthContactNumberQuery())
         ->setViewer($viewer)
         ->withIDs(array($id))
@@ -16,7 +18,8 @@ final class PhabricatorAuthContactNumberDisableController
             PhabricatorPolicyCapability::CAN_EDIT,
           ))
         ->executeOne();
-    if (!$number) {
+    }
+    if (!isset($number) || !$number) {
       return new Aphront404Response();
     }
 

src/applications/auth/controller/contact/PhabricatorAuthContactNumberEditController.php

@@ -4,9 +4,14 @@ final class PhabricatorAuthContactNumberEditController
   extends PhabricatorAuthContactNumberController {
 
   public function handleRequest(AphrontRequest $request) {
+    $sms_auth_factor = new PhabricatorSMSAuthFactor();
+    if ($sms_auth_factor->isSMSMailerConfigured()) {
       return id(new PhabricatorAuthContactNumberEditEngine())
         ->setController($this)
         ->buildResponse();
+    } else {
+      return new Aphront404Response();
+    }
   }
 
 }

src/applications/auth/controller/contact/PhabricatorAuthContactNumberPrimaryController.php

@@ -7,6 +7,8 @@ final class PhabricatorAuthContactNumberPrimaryController
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
+    $sms_auth_factor = new PhabricatorSMSAuthFactor();
+    if ($sms_auth_factor->isSMSMailerConfigured()) {
       $number = id(new PhabricatorAuthContactNumberQuery())
         ->setViewer($viewer)
         ->withIDs(array($id))
@@ -16,7 +18,8 @@ final class PhabricatorAuthContactNumberPrimaryController
             PhabricatorPolicyCapability::CAN_EDIT,
           ))
         ->executeOne();
-    if (!$number) {
+    }
+    if (!isset($number) || !$number) {
       return new Aphront404Response();
     }
 

src/applications/auth/controller/contact/PhabricatorAuthContactNumberTestController.php

@@ -7,6 +7,8 @@ final class PhabricatorAuthContactNumberTestController
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
+    $sms_auth_factor = new PhabricatorSMSAuthFactor();
+    if ($sms_auth_factor->isSMSMailerConfigured()) {
       $number = id(new PhabricatorAuthContactNumberQuery())
         ->setViewer($viewer)
         ->withIDs(array($id))
@@ -16,7 +18,8 @@ final class PhabricatorAuthContactNumberTestController
             PhabricatorPolicyCapability::CAN_EDIT,
           ))
         ->executeOne();
-    if (!$number) {
+    }
+    if (!isset($number) || !$number) {
       return new Aphront404Response();
     }
 

src/applications/auth/controller/contact/PhabricatorAuthContactNumberViewController.php

@@ -6,11 +6,14 @@ final class PhabricatorAuthContactNumberViewController
   public function handleRequest(AphrontRequest $request) {
     $viewer = $this->getViewer();
 
+    $sms_auth_factor = new PhabricatorSMSAuthFactor();
+    if ($sms_auth_factor->isSMSMailerConfigured()) {
       $number = id(new PhabricatorAuthContactNumberQuery())
         ->setViewer($viewer)
         ->withIDs(array($request->getURIData('id')))
         ->executeOne();
-    if (!$number) {
+    }
+    if (!isset($number) || !$number) {
       return new Aphront404Response();
     }
 

src/applications/auth/factor/PhabricatorSMSAuthFactor.php

@@ -334,7 +334,7 @@ final class PhabricatorSMSAuthFactor
     return $value;
   }
 
-  private function isSMSMailerConfigured() {
+  public function isSMSMailerConfigured() {
     $mailers = PhabricatorMetaMTAMail::newMailers(
       array(
         'outbound' => true,

src/applications/settings/panel/PhabricatorContactNumbersSettingsPanel.php

@@ -19,6 +19,18 @@ final class PhabricatorContactNumbersSettingsPanel
     return PhabricatorSettingsAuthenticationPanelGroup::PANELGROUPKEY;
   }
 
+  /**
+   * Whether to display "Contact Numbers" panel in users' Personal
+   * Settings by checking if global SMS support is configured
+   */
+  public function isUserPanel() {
+    $sms_auth_factor = new PhabricatorSMSAuthFactor();
+    if ($sms_auth_factor->isSMSMailerConfigured()) {
+      return true;
+    }
+    return false;
+  }
+
   public function isMultiFactorEnrollmentPanel() {
     return true;
   }