Merge pull request #52 in YUNIONIO/onecloud from ~QIUJIAN/onecloud:hotfix/qj-aliyun-cache-success-connected-state to release/2.0.0

* commit '8311f02839eab526a701bda27424e641bc6292ad':
  修正：aliyun在成功连接后，会缓存成功状态，导致更新错误账号信息后还是显示成功连接

pkg/util/aliyun/aliyun.go

@@ -59,6 +59,16 @@ func jsonRequest(client *sdk.Client, apiName string, params map[string]string) (
 	return body, nil
 }
 
+func (self *SAliyunClient) UpdateAccount(accessKey, secret string) error {
+	if self.accessKey != accessKey || self.secret != secret {
+		self.accessKey = accessKey
+		self.secret = secret
+		return self.fetchRegions()
+	} else {
+		return nil
+	}
+}
+
 func (self *SAliyunClient) getDefaultClient() (*sdk.Client, error) {
 	return sdk.NewClientWithAccessKey(ALIYUN_DEFAULT_REGION, self.accessKey, self.secret)
 }

pkg/util/aliyun/provider/provider.go

@@ -18,7 +18,12 @@ func (self *SAliyunProviderFactory) GetId() string {
 func (self *SAliyunProviderFactory) GetProvider(providerId, providerName, url, account, secret string) (cloudprovider.ICloudProvider, error) {
 	provider, ok := self.providerTable[providerId]
 	if ok {
-		return provider, nil
+		err := provider.client.UpdateAccount(account, secret)
+		if err != nil {
+			return nil, err
+		} else {
+			return provider, nil
+		}
 	}
 	client, err := aliyun.NewAliyunClient(providerId, providerName, account, secret)
 	if err != nil {