Simplify the implementation of PhabricatorPolicyCapability subclasses

Summary: Instead of implementing the `getCapabilityKey` method in all subclasses of `PhabricatorPolicyCapability`, provide a `final` implementation in the base class which uses reflection. See D9837 and D9985 for similar implementations.

Test Plan: N/A

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D10039

src/applications/countdown/capability/PhabricatorCountdownDefaultViewCapability.php

@@ -5,10 +5,6 @@ final class PhabricatorCountdownDefaultViewCapability
 
   const CAPABILITY = 'countdown.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/differential/capability/DifferentialDefaultViewCapability.php

@@ -5,10 +5,6 @@ final class DifferentialDefaultViewCapability
 
   const CAPABILITY = 'differential.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/diffusion/capability/DiffusionCreateRepositoriesCapability.php

@@ -5,10 +5,6 @@ final class DiffusionCreateRepositoriesCapability
 
   const CAPABILITY = 'diffusion.create';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Create Repositories');
   }

src/applications/diffusion/capability/DiffusionDefaultEditCapability.php

@@ -4,10 +4,6 @@ final class DiffusionDefaultEditCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'diffusion.default.edit';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Edit Policy');
   }

src/applications/diffusion/capability/DiffusionDefaultPushCapability.php

@@ -4,10 +4,6 @@ final class DiffusionDefaultPushCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'diffusion.default.push';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Push Policy');
   }

src/applications/diffusion/capability/DiffusionDefaultViewCapability.php

@@ -4,10 +4,6 @@ final class DiffusionDefaultViewCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'diffusion.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/diffusion/capability/DiffusionPushCapability.php

@@ -4,10 +4,6 @@ final class DiffusionPushCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'diffusion.push';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Push');
   }

src/applications/drydock/capability/DrydockCreateBlueprintsCapability.php

@@ -5,10 +5,6 @@ final class DrydockCreateBlueprintsCapability
 
   const CAPABILITY = 'drydock.blueprint.create';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Create Blueprints');
   }

src/applications/drydock/capability/DrydockDefaultEditCapability.php

@@ -4,10 +4,6 @@ final class DrydockDefaultEditCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'drydock.default.edit';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Blueprint Edit Policy');
   }

src/applications/drydock/capability/DrydockDefaultViewCapability.php

@@ -4,10 +4,6 @@ final class DrydockDefaultViewCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'drydock.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Blueprint View Policy');
   }

src/applications/harbormaster/capability/HarbormasterManagePlansCapability.php

@@ -5,10 +5,6 @@ final class HarbormasterManagePlansCapability
 
   const CAPABILITY = 'harbormaster.plans';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Manage Build Plans');
   }

src/applications/herald/capability/HeraldManageGlobalRulesCapability.php

@@ -5,10 +5,6 @@ final class HeraldManageGlobalRulesCapability
 
   const CAPABILITY = 'herald.global';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Manage Global Rules');
   }

src/applications/legalpad/capability/LegalpadCreateDocumentsCapability.php

@@ -5,10 +5,6 @@ final class LegalpadCreateDocumentsCapability
 
   const CAPABILITY = 'legalpad.create';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Create Documents');
   }

src/applications/legalpad/capability/LegalpadDefaultEditCapability.php

@@ -4,10 +4,6 @@ final class LegalpadDefaultEditCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'legalpad.default.edit';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Edit Policy');
   }

src/applications/legalpad/capability/LegalpadDefaultViewCapability.php

@@ -4,10 +4,6 @@ final class LegalpadDefaultViewCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'legalpad.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/macro/capability/PhabricatorMacroManageCapability.php

@@ -5,10 +5,6 @@ final class PhabricatorMacroManageCapability
 
   const CAPABILITY = 'macro.manage';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Manage Macros');
   }

src/applications/maniphest/capability/ManiphestBulkEditCapability.php

@@ -4,10 +4,6 @@ final class ManiphestBulkEditCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'maniphest.edit.bulk';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Bulk Edit Tasks');
   }

src/applications/maniphest/capability/ManiphestDefaultEditCapability.php

@@ -4,10 +4,6 @@ final class ManiphestDefaultEditCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'maniphest.default.edit';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Edit Policy');
   }

src/applications/maniphest/capability/ManiphestDefaultViewCapability.php

@@ -4,10 +4,6 @@ final class ManiphestDefaultViewCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'maniphest.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/maniphest/capability/ManiphestEditAssignCapability.php

@@ -4,10 +4,6 @@ final class ManiphestEditAssignCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'maniphest.edit.assign';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Assign Tasks');
   }

src/applications/maniphest/capability/ManiphestEditPoliciesCapability.php

@@ -5,10 +5,6 @@ final class ManiphestEditPoliciesCapability
 
   const CAPABILITY = 'maniphest.edit.policies';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Edit Task Policies');
   }

src/applications/maniphest/capability/ManiphestEditPriorityCapability.php

@@ -5,10 +5,6 @@ final class ManiphestEditPriorityCapability
 
   const CAPABILITY = 'maniphest.edit.priority';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Prioritize Tasks');
   }

src/applications/maniphest/capability/ManiphestEditProjectsCapability.php

@@ -5,10 +5,6 @@ final class ManiphestEditProjectsCapability
 
   const CAPABILITY = 'maniphest.edit.projects';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Edit Task Projects');
   }

src/applications/maniphest/capability/ManiphestEditStatusCapability.php

@@ -4,10 +4,6 @@ final class ManiphestEditStatusCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'maniphest.edit.status';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Edit Task Status');
   }

src/applications/nuance/capability/NuanceSourceDefaultEditCapability.php

@@ -5,10 +5,6 @@ final class NuanceSourceDefaultEditCapability
 
   const CAPABILITY = 'nuance.source.default.edit';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Source Edit Policy');
   }

src/applications/nuance/capability/NuanceSourceDefaultViewCapability.php

@@ -5,10 +5,6 @@ final class NuanceSourceDefaultViewCapability
 
   const CAPABILITY = 'nuance.source.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Source View Policy');
   }

src/applications/nuance/capability/NuanceSourceManageCapability.php

@@ -4,10 +4,6 @@ final class NuanceSourceManageCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'nuance.source.manage';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Manage Sources');
   }

src/applications/oauthserver/capability/PhabricatorOAuthServerCreateClientsCapability.php

@@ -5,10 +5,6 @@ final class PhabricatorOAuthServerCreateClientsCapability
 
   const CAPABILITY = 'oauthserver.create';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Create OAuth Applications');
   }

src/applications/paste/capability/PasteDefaultViewCapability.php

@@ -4,10 +4,6 @@ final class PasteDefaultViewCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'paste.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/people/capability/PeopleBrowseUserDirectoryCapability.php

@@ -5,10 +5,6 @@ final class PeopleBrowseUserDirectoryCapability
 
   const CAPABILITY = 'people.browse';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Browse User Directory');
   }

src/applications/pholio/capability/PholioDefaultEditCapability.php

@@ -4,10 +4,6 @@ final class PholioDefaultEditCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'pholio.default.edit';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default Edit Policy');
   }

src/applications/pholio/capability/PholioDefaultViewCapability.php

@@ -4,10 +4,6 @@ final class PholioDefaultViewCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'pholio.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }

src/applications/phragment/capability/PhragmentCanCreateCapability.php

@@ -4,10 +4,6 @@ final class PhragmentCanCreateCapability extends PhabricatorPolicyCapability {
 
   const CAPABILITY = 'phragment.create';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Create Fragments');
   }

src/applications/policy/capability/PhabricatorPolicyCanEditCapability.php

@@ -3,9 +3,7 @@
 final class PhabricatorPolicyCanEditCapability
   extends PhabricatorPolicyCapability {
 
-  public function getCapabilityKey() {
-    return self::CAN_EDIT;
-  }
+  const CAPABILITY = self::CAN_EDIT;
 
   public function getCapabilityName() {
     return pht('Can Edit');

src/applications/policy/capability/PhabricatorPolicyCanJoinCapability.php

@@ -3,9 +3,7 @@
 final class PhabricatorPolicyCanJoinCapability
   extends PhabricatorPolicyCapability {
 
-  public function getCapabilityKey() {
-    return self::CAN_JOIN;
-  }
+  const CAPABILITY = self::CAN_JOIN;
 
   public function getCapabilityName() {
     return pht('Can Join');

src/applications/policy/capability/PhabricatorPolicyCanViewCapability.php

@@ -3,9 +3,7 @@
 final class PhabricatorPolicyCanViewCapability
   extends PhabricatorPolicyCapability {
 
-  public function getCapabilityKey() {
-    return self::CAN_VIEW;
-  }
+  const CAPABILITY = self::CAN_VIEW;
 
   public function getCapabilityName() {
     return pht('Can View');

src/applications/policy/capability/PhabricatorPolicyCapability.php

@@ -14,7 +14,27 @@ abstract class PhabricatorPolicyCapability extends Phobject {
    *
    * @return string Globally unique capability key.
    */
-  abstract public function getCapabilityKey();
+  final public function getCapabilityKey() {
+    $class = new ReflectionClass($this);
+
+    $const = $class->getConstant('CAPABILITY');
+    if ($const === false) {
+      throw new Exception(
+        pht(
+          'PolicyCapability class "%s" must define an CAPABILITY property.',
+          get_class($this)));
+    }
+
+    if (!is_string($const)) {
+      throw new Exception(
+        pht(
+          'PolicyCapability class "%s" has an invalid CAPABILITY '.
+          'property. Capability constants must be a string.',
+          get_class($this)));
+    }
+
+    return $const;
+  }
 
 
   /**

src/applications/project/capability/ProjectCreateProjectsCapability.php

@@ -5,10 +5,6 @@ final class ProjectCreateProjectsCapability
 
   const CAPABILITY = 'project.create';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Can Create Projects');
   }

src/applications/slowvote/capability/PhabricatorSlowvoteDefaultViewCapability.php

@@ -5,10 +5,6 @@ final class PhabricatorSlowvoteDefaultViewCapability
 
   const CAPABILITY = 'slowvote.default.view';
 
-  public function getCapabilityKey() {
-    return self::CAPABILITY;
-  }
-
   public function getCapabilityName() {
     return pht('Default View Policy');
   }