初始化代码

vendor/alibabacloud/client/src/Credentials/Providers/CredentialsProvider.php

@@ -0,0 +1,170 @@
+<?php
+
+namespace AlibabaCloud\Client\Credentials\Providers;
+
+use Closure;
+use AlibabaCloud\Client\SDK;
+use AlibabaCloud\Client\AlibabaCloud;
+use AlibabaCloud\Client\Exception\ClientException;
+
+/**
+ * Class CredentialsProvider
+ *
+ * @package AlibabaCloud\Client\Credentials\Providers
+ */
+class CredentialsProvider
+{
+    /**
+     * @var array
+     */
+    private static $customChains;
+
+    /**
+     * @throws ClientException
+     */
+    public static function chain()
+    {
+        $providers = func_get_args();
+
+        if (empty($providers)) {
+            throw new ClientException('No providers in chain', SDK::INVALID_ARGUMENT);
+        }
+
+        foreach ($providers as $provider) {
+            if (!$provider instanceof Closure) {
+                throw new ClientException('Providers must all be Closures', SDK::INVALID_ARGUMENT);
+            }
+        }
+
+        self::$customChains = $providers;
+    }
+
+    /**
+     * Forget the custom providers chain.
+     */
+    public static function flush()
+    {
+        self::$customChains = [];
+    }
+
+    /**
+     * @return bool
+     */
+    public static function hasCustomChain()
+    {
+        return (bool)self::$customChains;
+    }
+
+    /**
+     * @param string $clientName
+     *
+     * @throws ClientException
+     */
+    public static function customProvider($clientName)
+    {
+        foreach (self::$customChains as $provider) {
+            $provider();
+            if (AlibabaCloud::has($clientName)) {
+                break;
+            }
+        }
+    }
+
+    /**
+     * @param string $clientName
+     *
+     * @throws ClientException
+     */
+    public static function defaultProvider($clientName)
+    {
+        $providers = [
+            self::env(),
+            self::ini(),
+            self::instance(),
+        ];
+
+        foreach ($providers as $provider) {
+            $provider();
+            if (AlibabaCloud::has($clientName)) {
+                break;
+            }
+        }
+    }
+
+    /**
+     * @return Closure
+     */
+    public static function env()
+    {
+        return static function () {
+            $accessKeyId     = \AlibabaCloud\Client\envNotEmpty('ALIBABA_CLOUD_ACCESS_KEY_ID');
+            $accessKeySecret = \AlibabaCloud\Client\envNotEmpty('ALIBABA_CLOUD_ACCESS_KEY_SECRET');
+
+            if ($accessKeyId && $accessKeySecret) {
+                AlibabaCloud::accessKeyClient($accessKeyId, $accessKeySecret)->asDefaultClient();
+            }
+        };
+    }
+
+    /**
+     * @return Closure
+     */
+    public static function ini()
+    {
+        return static function () {
+            $ini = \AlibabaCloud\Client\envNotEmpty('ALIBABA_CLOUD_CREDENTIALS_FILE');
+
+            if ($ini) {
+                AlibabaCloud::load($ini);
+            } else {
+                // @codeCoverageIgnoreStart
+                AlibabaCloud::load();
+                // @codeCoverageIgnoreEnd
+            }
+
+            self::compatibleWithGlobal();
+        };
+    }
+
+    /**
+     * @codeCoverageIgnore
+     *
+     * Compatible with global
+     *
+     * @throws ClientException
+     */
+    private static function compatibleWithGlobal()
+    {
+        if (AlibabaCloud::has('global') && !AlibabaCloud::has(self::getDefaultName())) {
+            AlibabaCloud::get('global')->name(self::getDefaultName());
+        }
+    }
+
+    /**
+     * @return array|false|string
+     * @throws ClientException
+     */
+    public static function getDefaultName()
+    {
+        $name = \AlibabaCloud\Client\envNotEmpty('ALIBABA_CLOUD_PROFILE');
+
+        if ($name) {
+            return $name;
+        }
+
+        return 'default';
+    }
+
+    /**
+     * @return Closure
+     */
+    public static function instance()
+    {
+        return static function () {
+            $instance = \AlibabaCloud\Client\envNotEmpty('ALIBABA_CLOUD_ECS_METADATA');
+            if ($instance) {
+                AlibabaCloud::ecsRamRoleClient($instance)->asDefaultClient();
+            }
+        };
+    }
+}