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vendor/alibabacloud/credentials/src/Providers/EcsRamRoleProvider.php

@@ -0,0 +1,94 @@
+<?php
+
+namespace AlibabaCloud\Credentials\Providers;
+
+use AlibabaCloud\Credentials\Request\Request;
+use AlibabaCloud\Credentials\StsCredential;
+use Exception;
+use GuzzleHttp\Exception\GuzzleException;
+use AlibabaCloud\Tea\Response;
+use InvalidArgumentException;
+use Psr\Http\Message\ResponseInterface;
+use RuntimeException;
+
+/**
+ * Class EcsRamRoleProvider
+ *
+ * @package AlibabaCloud\Credentials\Providers
+ */
+class EcsRamRoleProvider extends Provider
+{
+
+    /**
+     * Expiration time slot for temporary security credentials.
+     *
+     * @var int
+     */
+    protected $expirationSlot = 10;
+
+    /**
+     * @var string
+     */
+    private $uri = 'http://100.100.100.200/latest/meta-data/ram/security-credentials/';
+
+    /**
+     * Get credential.
+     *
+     * @return StsCredential
+     * @throws Exception
+     * @throws GuzzleException
+     */
+    public function get()
+    {
+        $result = $this->getCredentialsInCache();
+
+        if ($result === null) {
+            $result = $this->request();
+
+            if (!isset($result['AccessKeyId'], $result['AccessKeySecret'], $result['SecurityToken'])) {
+                throw new RuntimeException($this->error);
+            }
+
+            $this->cache($result->toArray());
+        }
+
+        return new StsCredential(
+            $result['AccessKeyId'],
+            $result['AccessKeySecret'],
+            strtotime($result['Expiration']),
+            $result['SecurityToken']
+        );
+    }
+
+    /**
+     * Get credentials by request.
+     *
+     * @return ResponseInterface
+     * @throws Exception
+     * @throws GuzzleException
+     */
+    public function request()
+    {
+        $credential = $this->credential;
+        $url        = $this->uri . $credential->getRoleName();
+
+        $options = [
+            'http_errors'     => false,
+            'timeout'         => 1,
+            'connect_timeout' => 1,
+        ];
+
+        $result = Request::createClient()->request('GET', $url, $options);
+
+        if ($result->getStatusCode() === 404) {
+            $message = 'The role was not found in the instance';
+            throw new InvalidArgumentException($message);
+        }
+
+        if ($result->getStatusCode() !== 200) {
+            throw new RuntimeException('Error retrieving credentials from result: ' . $result->toJson());
+        }
+
+        return $result;
+    }
+}