feat: support client instantiation with preconfigured bearer token

Closes #359

Author: Jens Schulze

src/Core/Client/OAuth/Manager.php

@@ -92,6 +92,9 @@ protected function getCacheAdapter()
     public function getToken()
     {
         $scope = $this->getConfig()->getScope();
+        if ($this->getConfig()->getGrantType() == Config::GRANT_TYPE_BEARER_TOKEN) {
+            return new Token($this->getConfig()->getBearerToken(), null, $scope);
+        }
         if ($token = $this->getCacheToken()) {
             return new Token($token, null, $scope);
         }
@@ -113,6 +116,8 @@ public function refreshToken()
         }
 
         switch ($grantType) {
+            case Config::GRANT_TYPE_BEARER_TOKEN:
+                return new Token($this->getConfig()->getBearerToken(), null, $scope);
             case Config::GRANT_TYPE_PASSWORD:
                 $user = $this->getConfig()->getUsername();
                 $password = $this->getConfig()->getPassword();

src/Core/Config.php

@@ -69,13 +69,15 @@ class Config implements ContextAwareInterface
     const USER_NAME = 'username';
     const PASSWORD = 'password';
     const REFRESH_TOKEN = 'refresh_token';
+    const BEARER_TOKEN = 'bearer_token';
     const ANONYMOUS_ID = 'anonymous_id';
     const GRANT_TYPE = 'grant_type';
 
     const GRANT_TYPE_CLIENT = 'client_credentials';
     const GRANT_TYPE_PASSWORD = 'password';
     const GRANT_TYPE_REFRESH = 'refresh_token';
     const GRANT_TYPE_ANONYMOUS = 'anonymous_token';
+    const GRANT_TYPE_BEARER_TOKEN = 'bearer_token';
 
     /**
      * @var string
@@ -138,6 +140,11 @@ class Config implements ContextAwareInterface
      */
     protected $refreshToken;
 
+    /**
+     * @var string
+     */
+    protected $bearerToken;
+
     /**
      * @var string
      */
@@ -358,11 +365,11 @@ public function setApiUrl($apiUrl)
      */
     public function check()
     {
-        if (is_null($this->getClientId())) {
+        if (is_null($this->getClientId()) && $this->getGrantType() !== self::GRANT_TYPE_BEARER_TOKEN) {
             throw new InvalidArgumentException(Message::NO_CLIENT_ID);
         }
 
-        if (is_null($this->getClientSecret())) {
+        if (is_null($this->getClientSecret()) && $this->getGrantType() !== self::GRANT_TYPE_BEARER_TOKEN) {
             throw new InvalidArgumentException(Message::NO_CLIENT_SECRET);
         }
 
@@ -674,4 +681,22 @@ public function setClientOptions(array $clientOptions)
         $this->clientOptions = $clientOptions;
         return $this;
     }
+
+    /**
+     * @return string
+     */
+    public function getBearerToken()
+    {
+        return $this->bearerToken;
+    }
+
+    /**
+     * @param string $bearerToken
+     * @return Config
+     */
+    public function setBearerToken($bearerToken)
+    {
+        $this->bearerToken = $bearerToken;
+        return $this;
+    }
 }

tests/unit/Client/OAuth/ManagerTest.php

@@ -100,6 +100,24 @@ public function testToken()
         $this->assertSame($manager->getConfig()->getScope(), $manager->getToken()->getScope());
     }
 
+    public function testGrantTypeBearerToken()
+    {
+        $config = Config::fromArray([
+            Config::BEARER_TOKEN => 'abdef',
+            Config::PROJECT => 'project',
+            Config::GRANT_TYPE => Config::GRANT_TYPE_BEARER_TOKEN
+        ]);
+
+        $manager = new Manager($config);
+        $this->assertInstanceOf(Token::class, $manager->getToken());
+        $this->assertSame($manager->getConfig()->getScope(), $manager->getToken()->getScope());
+        $this->assertSame('abdef', $manager->getToken()->getToken());
+
+        $this->assertInstanceOf(Token::class, $manager->refreshToken());
+        $this->assertSame($manager->getConfig()->getScope(), $manager->refreshToken()->getScope());
+        $this->assertSame('abdef', $manager->refreshToken()->getToken());
+    }
+
     public function testScope()
     {
         $config = Config::fromArray([

tests/unit/ConfigTest.php

@@ -25,6 +25,7 @@ public function testSetCredentialsOnly()
         unset($testConfig[Config::OAUTH_URL]);
         unset($testConfig[Config::API_URL]);
         $config = Config::fromArray($testConfig);
+        $config->check();
         $this->assertInstanceOf(Config::class, $config);
 
         $this->assertEquals($testConfig[Config::CLIENT_ID], $config->getClientId());
@@ -34,6 +35,25 @@ public function testSetCredentialsOnly()
         $this->assertEquals('https://api.sphere.io', $config->getApiUrl());
     }
 
+    public function testSetBearerTokenOnly()
+    {
+        $testConfig = $this->getConfig();
+        $testConfig[Config::BEARER_TOKEN] = 'abcdef';
+        $testConfig[Config::GRANT_TYPE] = Config::GRANT_TYPE_BEARER_TOKEN;
+        unset($testConfig[Config::OAUTH_URL]);
+        unset($testConfig[Config::CLIENT_ID]);
+        unset($testConfig[Config::CLIENT_SECRET]);
+        unset($testConfig[Config::API_URL]);
+        $config = Config::fromArray($testConfig);
+        $config->check();
+        $this->assertInstanceOf(Config::class, $config);
+
+        $this->assertEquals($testConfig[Config::BEARER_TOKEN], $config->getBearerToken());
+        $this->assertEquals('https://auth.sphere.io/oauth/token', $config->getOauthUrl());
+        $this->assertEquals($testConfig[Config::PROJECT], $config->getProject());
+        $this->assertEquals('https://api.sphere.io', $config->getApiUrl());
+    }
+
     public function testFromArray()
     {
         $testConfig = $this->getConfig();