make oauth endpoints openid compliant

src/PersistentData/Model/OAuthToken.php

@@ -7,10 +7,14 @@ class OAuthToken extends Model
 {
     protected static string $table = 'oauth_tokens';
 
-    protected static array $fields = ['nonce', 'user_id', 'code', 'created', 'expires'];
+    protected static array $fields = ['scope', 'nonce', 'user_id', 'code', 'access_token', 'created', 'expires'];
 
     protected static array $relations = ['user' => User::class];
 
+    private static array $possibleScopeValues = ['openid', 'email', 'profile'];
+
+    private array $scope = [];
+
     private string $nonce = '';
 
     private ?User $user = null;
@@ -19,10 +23,22 @@ class OAuthToken extends Model
 
     private string $code = '';
 
+    private string $accessToken = '';
+
     private DateTime $created;
 
     private DateTime $expires;
 
+    public function setScopeArray(array $scope): void
+    {
+        $this->scope = array_intersect($scope, self::$possibleScopeValues);
+    }
+
+    public function setScope(string $scope): void
+    {
+        $this->setScopeArray(explode(' ', $scope));
+    }
+
     public function setNonce(string $nonce): void
     {
         $this->nonce = $nonce;
@@ -43,6 +59,11 @@ class OAuthToken extends Model
         $this->code = $code;
     }
 
+    public function setAccessToken(string $accessToken): void
+    {
+        $this->accessToken = $accessToken;
+    }
+
     public function setCreatedDate(DateTime $created): void
     {
         $this->created = $created;
@@ -63,6 +84,16 @@ class OAuthToken extends Model
         $this->expires = new DateTime($expires);
     }
 
+    public function getScope(): string
+    {
+        return implode(' ', $this->scope);
+    }
+
+    public function getScopeArray(): array
+    {
+        return $this->scope;
+    }
+
     public function getNonce(): string
     {
         return $this->nonce;
@@ -83,6 +114,11 @@ class OAuthToken extends Model
         return $this->code;
     }
 
+    public function getAccessToken(): string
+    {
+        return $this->accessToken;
+    }
+
     public function getCreatedDate(): DateTime
     {
         return $this->created;