Create EnvironCredentials.php

Author: ilyakharev

src/Auth/EnvironCredentials.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace YdbPlatform\Ydb\Auth;
+
+use YdbPlatform\Ydb\Auth\Implement\AccessTokenAuthentication;
+use YdbPlatform\Ydb\Auth\Implement\AnonymousAuthentication;
+use YdbPlatform\Ydb\Auth\Implement\JwtWithJsonAuthentication;
+use YdbPlatform\Ydb\Auth\Implement\MetadataAuthentication;
+
+class EnvironCredentials extends \YdbPlatform\Ydb\Auth\Auth
+{
+    /**
+     * @var Auth
+     */
+    protected $auth;
+    public function __construct()
+    {
+        if ($jsonfile = getenv("YDB_SERVICE_ACCOUNT_KEY_FILE_CREDENTIALS")){
+            $this->auth = new JwtWithJsonAuthentication($jsonfile);
+        } elseif (getenv("YDB_ANONYMOUS_CREDENTIALS") == 1){
+            $this->auth = new AnonymousAuthentication();
+        } elseif (getenv("YDB_METADATA_CREDENTIALS") == 1){
+            $this->auth = new MetadataAuthentication();
+        } elseif ($token = getenv("YDB_ACCESS_TOKEN_CREDENTIALS")){
+            $this->auth = new AccessTokenAuthentication($token);
+        } else {
+            $this->auth = new MetadataAuthentication();
+        }
+    }
+
+    public function getTokenInfo(): TokenInfo
+    {
+        return $this->auth->getTokenInfo();
+    }
+
+    public function getName(): string
+    {
+        return $this->auth->getName();
+    }
+}