Update requesthandlers with missing extension points

src/Forms/FormField.php

@@ -363,7 +363,9 @@ class FormField extends RequestHandler
      */
     public function Link($action = null)
     {
-        return Controller::join_links($this->form->FormAction(), 'field/' . $this->name, $action);
+        $link = Controller::join_links($this->form->FormAction(), 'field/' . $this->name, $action);
+        $this->extend('updateLink', $link, $action);
+        return $link;
     }
 
     /**

src/Forms/FormRequestHandler.php

@@ -85,15 +85,15 @@ class FormRequestHandler extends RequestHandler
 
         // Respect FormObjectLink() method
         if ($controller->hasMethod("FormObjectLink")) {
-            return Controller::join_links(
-                $controller->FormObjectLink($this->form->getName()),
-                $action,
-                '/'
-            );
+            $base = $controller->FormObjectLink($this->form->getName());
+        } else {
+            $base = Controller::join_links($controller->Link(), $this->form->getName());
         }
 
-        // Default form link
-        return Controller::join_links($controller->Link(), $this->form->getName(), $action, '/');
+        // Join with action and decorate
+        $link = Controller::join_links($base, $action, '/');
+        $this->extend('updateLink', $link, $action);
+        return $link;
     }
 
     /**

src/Security/MemberAuthenticator/ChangePasswordHandler.php

@@ -7,7 +7,6 @@ use Psr\Container\NotFoundExceptionInterface;
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\HTTPResponse;
 use SilverStripe\Control\RequestHandler;
-use SilverStripe\Core\Config\Config;
 use SilverStripe\Core\Injector\Injector;
 use SilverStripe\ORM\FieldType\DBDatetime;
 use SilverStripe\ORM\FieldType\DBField;
@@ -25,9 +24,11 @@ class ChangePasswordHandler extends RequestHandler
     protected $authenticator;
 
     /**
+     * Link to this handler
+     *
      * @var string
      */
-    protected $link;
+    protected $link = null;
 
     /**
      * @var array Allowed Actions
@@ -123,8 +124,8 @@ class ChangePasswordHandler extends RequestHandler
                     . '<p>You can request a new one <a href="{link1}">here</a> or change your password after'
                     . ' you <a href="{link2}">logged in</a>.</p>',
                     [
-                        'link1' => $this->link('lostpassword'),
-                        'link2' => $this->link('login')
+                        'link1' => $this->Link('lostpassword'),
+                        'link2' => $this->Link('login')
                     ]
                 )
             );
@@ -164,16 +165,15 @@ class ChangePasswordHandler extends RequestHandler
     /**
      * Return a link to this request handler.
      * The link returned is supplied in the constructor
-     * @param null $action
+     *
+     * @param string|null $action
      * @return string
      */
-    public function link($action = null)
+    public function Link($action = null)
     {
-        if ($action) {
-            return Controller::join_links($this->link, $action);
-        }
-
-        return $this->link;
+        $link = Controller::join_links($this->link, $action);
+        $this->extend('updateLink', $link, $action);
+        return $link;
     }
 
     /**

src/Security/MemberAuthenticator/LoginHandler.php

@@ -41,9 +41,11 @@ class LoginHandler extends RequestHandler
     ];
 
     /**
-     * @var string Called link on this handler
+     * Link to this handler
+     *
+     * @var string
      */
-    private $link;
+    protected $link = null;
 
     /**
      * @param string $link The URL to recreate this request handler
@@ -59,16 +61,15 @@ class LoginHandler extends RequestHandler
     /**
      * Return a link to this request handler.
      * The link returned is supplied in the constructor
+     *
      * @param null|string $action
      * @return string
      */
-    public function link($action = null)
+    public function Link($action = null)
     {
-        if ($action) {
-            return Controller::join_links($this->link, $action);
-        }
-
-        return $this->link;
+        $link = Controller::join_links($this->link, $action);
+        $this->extend('updateLink', $link, $action);
+        return $link;
     }
 
     /**
@@ -152,7 +153,7 @@ class LoginHandler extends RequestHandler
 
     public function getReturnReferer()
     {
-        return $this->link();
+        return $this->Link();
     }
 
     /**

src/Security/MemberAuthenticator/LostPasswordHandler.php

@@ -44,7 +44,12 @@ class LostPasswordHandler extends RequestHandler
         'passwordsent',
     ];
 
-    private $link = null;
+    /**
+     * Link to this handler
+     *
+     * @var string
+     */
+    protected $link = null;
 
     /**
      * @param string $link The URL to recreate this request handler
@@ -59,16 +64,14 @@ class LostPasswordHandler extends RequestHandler
      * Return a link to this request handler.
      * The link returned is supplied in the constructor
      *
-     * @param string $action
+     * @param string|null $action
      * @return string
      */
-    public function link($action = null)
+    public function Link($action = null)
     {
-        if ($action) {
-            return Controller::join_links($this->link, $action);
-        }
-
-        return $this->link;
+        $link = Controller::join_links($this->link, $action);
+        $this->extend('updateLink', $link, $action);
+        return $link;
     }
 
     /**
@@ -261,7 +264,7 @@ class LostPasswordHandler extends RequestHandler
     protected function redirectToSuccess(array $data)
     {
         $link = Controller::join_links(
-            $this->link('passwordsent'),
+            $this->Link('passwordsent'),
             rawurlencode($data['Email']),
             '/'
         );

src/Security/Security.php

@@ -483,7 +483,9 @@ class Security extends Controller implements TemplateGlobalProvider
     public function Link($action = null)
     {
         /** @skipUpgrade */
-        return Controller::join_links(Director::baseURL(), "Security", $action);
+        $link = Controller::join_links(Director::baseURL(), "Security", $action);
+        $this->extend('updateLink', $link, $action);
+        return $link;
     }
 
     /**