REST API structure using Slim framework

  * REST API routes are handle by Slim.
  * Every API controller go through ApiMiddleware which handles security.
  * First service implemented `/info`, for tests purpose.

1 files changed, 184 insertions, 0 deletions

diff --git a/tests/api/ApiMiddlewareTest.php b/tests/api/ApiMiddlewareTest.php
new file mode 100644
index 00000000..4d4dd9b9
--- /dev/null
+++ b/tests/api/ApiMiddlewareTest.php
@@ -0,0 +1,184 @@
+<?php
+
+namespace Shaarli\Api;
+
+use Slim\Container;
+use Slim\Http\Environment;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class ApiMiddlewareTest
+ *
+ * Test the REST API Slim Middleware.
+ *
+ * Note that we can't test a valid use case here, because the middleware
+ * needs to call a valid controller/action during its execution.
+ *
+ * @package Api
+ */
+class ApiMiddlewareTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var string datastore to test write operations
+     */
+    protected static $testDatastore = 'sandbox/datastore.php';
+
+    /**
+     * @var \ConfigManager instance
+     */
+    protected $conf;
+
+    /**
+     * @var \ReferenceLinkDB instance.
+     */
+    protected $refDB = null;
+
+    /**
+     * @var Container instance.
+     */
+    protected $container;
+
+    /**
+     * Before every test, instantiate a new Api with its config, plugins and links.
+     */
+    public function setUp()
+    {
+        $this->conf = new \ConfigManager('tests/utils/config/configJson.json.php');
+        $this->conf->set('api.secret', 'NapoleonWasALizard');
+
+        $this->refDB = new \ReferenceLinkDB();
+        $this->refDB->write(self::$testDatastore);
+
+        $this->container = new Container();
+        $this->container['conf'] = $this->conf;
+    }
+
+    /**
+     * After every test, remove the test datastore.
+     */
+    public function tearDown()
+    {
+        @unlink(self::$testDatastore);
+    }
+
+    /**
+     * Invoke the middleware with the API disabled:
+     * should return a 401 error Unauthorized.
+     */
+    public function testInvokeMiddlewareApiDisabled()
+    {
+        $this->conf->set('api.enabled', false);
+        $mw = new ApiMiddleware($this->container);
+        $env = Environment::mock([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI' => '/echo',
+        ]);
+        $request = Request::createFromEnvironment($env);
+        $response = new Response();
+        /** @var Response $response */
+        $response = $mw($request, $response, null);
+
+        $this->assertEquals(401, $response->getStatusCode());
+        $body = json_decode((string) $response->getBody());
+        $this->assertEquals('Not authorized', $body);
+    }
+
+    /**
+     * Invoke the middleware with the API disabled in debug mode:
+     * should return a 401 error Unauthorized - with a specific message and a stacktrace.
+     */
+    public function testInvokeMiddlewareApiDisabledDebug()
+    {
+        $this->conf->set('api.enabled', false);
+        $this->conf->set('dev.debug', true);
+        $mw = new ApiMiddleware($this->container);
+        $env = Environment::mock([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI' => '/echo',
+        ]);
+        $request = Request::createFromEnvironment($env);
+        $response = new Response();
+        /** @var Response $response */
+        $response = $mw($request, $response, null);
+
+        $this->assertEquals(401, $response->getStatusCode());
+        $body = json_decode((string) $response->getBody());
+        $this->assertEquals('Not authorized: API is disabled', $body->message);
+        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+    }
+
+    /**
+     * Invoke the middleware without a token (debug):
+     * should return a 401 error Unauthorized - with a specific message and a stacktrace.
+     */
+    public function testInvokeMiddlewareNoTokenProvidedDebug()
+    {
+        $this->conf->set('dev.debug', true);
+        $mw = new ApiMiddleware($this->container);
+        $env = Environment::mock([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI' => '/echo',
+        ]);
+        $request = Request::createFromEnvironment($env);
+        $response = new Response();
+        /** @var Response $response */
+        $response = $mw($request, $response, null);
+
+        $this->assertEquals(401, $response->getStatusCode());
+        $body = json_decode((string) $response->getBody());
+        $this->assertEquals('Not authorized: JWT token not provided', $body->message);
+        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+    }
+
+    /**
+     * Invoke the middleware without a secret set in settings (debug):
+     * should return a 401 error Unauthorized - with a specific message and a stacktrace.
+     */
+    public function testInvokeMiddlewareNoSecretSetDebug()
+    {
+        $this->conf->set('dev.debug', true);
+        $this->conf->set('api.secret', '');
+        $mw = new ApiMiddleware($this->container);
+        $env = Environment::mock([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI' => '/echo',
+            'HTTP_JWT'=> 'jwt',
+        ]);
+        $request = Request::createFromEnvironment($env);
+        $response = new Response();
+        /** @var Response $response */
+        $response = $mw($request, $response, null);
+
+        $this->assertEquals(401, $response->getStatusCode());
+        $body = json_decode((string) $response->getBody());
+        $this->assertEquals('Not authorized: Token secret must be set in Shaarli\'s administration', $body->message);
+        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+    }
+
+    /**
+     * Invoke the middleware without an invalid JWT token (debug):
+     * should return a 401 error Unauthorized - with a specific message and a stacktrace.
+     *
+     * Note: specific JWT errors tests are handled in ApiUtilsTest.
+     */
+    public function testInvokeMiddlewareInvalidJwtDebug()
+    {
+        $this->conf->set('dev.debug', true);
+        $mw = new ApiMiddleware($this->container);
+        $env = Environment::mock([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI' => '/echo',
+            'HTTP_JWT'=> 'bad jwt',
+        ]);
+        $request = Request::createFromEnvironment($env);
+        $response = new Response();
+        /** @var Response $response */
+        $response = $mw($request, $response, null);
+
+        $this->assertEquals(401, $response->getStatusCode());
+        $body = json_decode((string) $response->getBody());
+        $this->assertEquals('Not authorized: Malformed JWT token', $body->message);
+        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+    }
+}