Show more information about OAuth tokens in the Account Settings -> External Accounts screen

Summary:
Ref T1536.

  - Allow providers to customize the look of external accounts.
  - For username/password auth, don't show the account view (it's confusing and not useful).
  - For OAuth accounts, show token status.

Test Plan:
{F47374}

{F47375}

Reviewers: btrahan, chad

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T1536

Differential Revision: https://secure.phabricator.com/D6289

src/applications/auth/provider/PhabricatorAuthProvider.php

@@ -320,4 +320,22 @@ abstract class PhabricatorAuthProvider {
     return;
   }
 
+  public function willRenderLinkedAccount(
+    PhabricatorUser $viewer,
+    PhabricatorObjectItemView $item,
+    PhabricatorExternalAccount $account) {
+
+    $account_view = id(new PhabricatorAuthAccountView())
+      ->setExternalAccount($account)
+      ->setAuthProvider($this);
+
+    $item->appendChild(
+      phutil_tag(
+        'div',
+        array(
+          'class' => 'mmr mml mst mmb',
+        ),
+        $account_view));
+  }
+
 }

src/applications/auth/provider/PhabricatorAuthProviderOAuth.php

@@ -343,4 +343,34 @@ abstract class PhabricatorAuthProviderOAuth extends PhabricatorAuthProvider {
     return null;
   }
 
+  public function willRenderLinkedAccount(
+    PhabricatorUser $viewer,
+    PhabricatorObjectItemView $item,
+    PhabricatorExternalAccount $account) {
+
+    // Get a valid token, possibly refreshing it.
+    $oauth_token = $this->getOAuthAccessToken($account);
+
+    $item->addAttribute(pht('OAuth2 Account'));
+
+    if ($oauth_token) {
+      $oauth_expires = $account->getProperty('oauth.token.access.expires');
+      if ($oauth_expires) {
+        $item->addAttribute(
+          pht(
+            'Active OAuth Token (Expires: %s)',
+            phabricator_datetime($oauth_expires, $viewer)));
+      } else {
+        $item->addAttribute(
+          pht(
+            'Active OAuth Token'));
+      }
+    } else {
+      $item->addAttribute(pht('No OAuth Access Token'));
+    }
+
+    parent::willRenderLinkedAccount($viewer, $item, $account);
+  }
+
+
 }

src/applications/auth/provider/PhabricatorAuthProviderPassword.php

@@ -239,4 +239,11 @@ final class PhabricatorAuthProviderPassword
     return null;
   }
 
+  public function willRenderLinkedAccount(
+    PhabricatorUser $viewer,
+    PhabricatorObjectItemView $item,
+    PhabricatorExternalAccount $account) {
+    return;
+  }
+
 }

src/applications/settings/panel/PhabricatorSettingsPanelExternalAccounts.php

@@ -77,21 +77,10 @@ final class PhabricatorSettingsPanelExternalAccounts
           ->setDisabled(!$can_unlink)
           ->setHref('/auth/unlink/'.$account->getProviderKey().'/'));
 
-      $account_view = id(new PhabricatorAuthAccountView())
-        ->setExternalAccount($account);
-
       if ($provider) {
-        $account_view->setAuthProvider($provider);
+        $provider->willRenderLinkedAccount($viewer, $item, $account);
       }
 
-      $item->appendChild(
-        phutil_tag(
-          'div',
-          array(
-            'class' => 'mmr mml mst mmb',
-          ),
-          $account_view));
-
       $linked->addItem($item);
     }