Possibility to set the property accessor to null in order to support tokens returned in plain text format

CHANGELOG.md

@@ -22,3 +22,7 @@ Fix sipmple-cache requirements, thanks to @neclimdul
 # 2.0.0
 
 For PHP 8 only
+
+# 2.1.0 ???
+
+Possibility to set the property accessor to null in order to support tokens returned in plain text format.

README.md

@@ -273,6 +273,26 @@ $jwtManager = new JwtManager(
 );
 ```
 
+### Null property accessor
+
+If the response is not in json format (i.e. the response body contains only the token in plain text format), you need 
+to set the property accessor to `null`:
+
+```php
+//Create the JwtManager
+$jwtManager = new JwtManager(
+    $authClient,
+    $authStrategy,
+    $persistenceStrategy,
+    [
+        'token_url' => '/api/token',
+    ]
+);
+//Set property accessor to `null`
+$jwtManager->setPropertyAccessor(null);
+```
+
+
 ## Authorization Header Type
 
 Some endpoints use different Authorization header types (Bearer, JWT, etc...).

src/Manager/JwtManager.php

@@ -94,6 +94,14 @@ public function __construct(
         $this->propertyAccessor = PropertyAccess::createPropertyAccessor();
     }
 
+    /**
+     * @param \Symfony\Component\PropertyAccess\PropertyAccessor|null $propertyAccessor
+     */
+    public function setPropertyAccessor(?PropertyAccessor $propertyAccessor): void
+    {
+        $this->propertyAccessor = $propertyAccessor;
+    }
+
     /**
      * getToken.
      *
@@ -120,14 +128,21 @@ public function getJwtToken()
         );
 
         $response = $this->client->request('POST', $url, $requestOptions);
-        $body = json_decode($response->getBody());
 
-        //Will be throw because it's mandatory
-        $tokenValue = $this->propertyAccessor->getValue($body, $this->options['token_key']);
+        if ($this->propertyAccessor !== null) {
+            $body = json_decode($response->getBody());
+
+            //Will be throw because it's mandatory
+            $tokenValue = $this->propertyAccessor->getValue($body, $this->options['token_key']);
 
-        try {
-            $expiresIn = $this->propertyAccessor->getValue($body, $this->options['expire_key']);
-        } catch (NoSuchPropertyException $e) {
+            try {
+                $expiresIn = $this->propertyAccessor->getValue($body, $this->options['expire_key']);
+            } catch (NoSuchPropertyException $e) {
+                $expiresIn = null;
+            }
+        } else {
+            // no property accessor means that token is in plain text format
+            $tokenValue = $response->getBody()->getContents();
             $expiresIn = null;
         }
 

tests/Manager/JwtManagerTest.php

@@ -214,6 +214,47 @@ function (RequestInterface $request) {
         $this->assertEquals('1453720507', $token->getToken());
     }
 
+    public function testGetTokenWithNullPropertyAccessor()
+    {
+        $mockHandler = new MockHandler([
+            function (RequestInterface $request) {
+
+                $this->assertTrue($request->hasHeader('timeout'));
+                $this->assertEquals(
+                    3,
+                    $request->getHeaderLine('timeout')
+                );
+
+                return new Response(
+                    200,
+                    ['Content-Type' => 'text/plain'],
+                    '1453720507' // plain text !
+                );
+            },
+        ]);
+
+        $handler = HandlerStack::create($mockHandler);
+
+        $authClient = new Client([
+            'handler' => $handler,
+        ]);
+
+        $authStrategy = new QueryAuthStrategy(['username' => 'admin', 'password' => 'admin']);
+
+        $jwtManager = new JwtManager(
+            $authClient,
+            $authStrategy,
+            null,
+            ['token_url' => '/api/token', 'timeout' => 3] // no (useless) 'token_key' option
+        );
+        $jwtManager->setPropertyAccessor(null);
+
+        $token = $jwtManager->getJwtToken();
+
+        $this->assertInstanceOf(JwtToken::class, $token);
+        $this->assertEquals('1453720507', $token->getToken());
+    }
+
     public function testGetTokenShouldGetNewTokenIfCachedTokenIsNotValid()
     {
         $mockHandler = new MockHandler(