delete sign value

README.md

@@ -1,2 +1,57 @@
 # gaore-common-sdk-go
 
+### 目录架构
+```
+├── README.md
+├── sdk
+│   ├── auth                    `认证类`
+│   ├── client.go               `客户端主入口类`
+│   ├── config.go
+│   ├── requests                `请求类`
+│   ├── responses               `响应类`
+│   └── utils                   `工具类`
+└── services
+    └── jedi
+```
+
+### 服务端认证调用事例
+
+调用 `auth.UnSign` 方法，提供`*http.Request`请求实例，以及`signer.Signer` 签名器（签名器需要包括凭据）
+即可完成整个验签过程 
+
+```go
+package main
+
+import (
+	"github.com/astaxie/beego"
+	"github.com/astaxie/beego/context"
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth"
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth/credentials"
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth/signers"
+	
+)
+
+func init() {
+	// 过滤器
+    beego.InsertFilter("/api/*", beego.BeforeRouter, func(context *context.Context) {
+        httpRequest := context.Request
+		err := auth.UnSign(httpRequest, signers.NewAccessKeySigner(&credentials.AccessKeyCredential{
+			AccessKeyId:     "aaaaaa",
+			AccessKeySecret: "bbbbbb",
+			AccessKeyFrom:   context.Input.Param("access_from"),
+		}))
+
+		if err != nil {
+			resp := response.NewJsonByDefaultFailed()
+			resp.Msg = err.Error()
+			resp.Code =  10086
+
+			var (
+				hasIndent   = beego.BConfig.RunMode != beego.PROD
+			)
+			context.Output.Status = 500
+			context.Output.JSON(resp, hasIndent,  false)
+		}
+	})
+}
+```

sdk/responses/response.go

@@ -4,8 +4,10 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/requests"
 	"io/ioutil"
 	"net/http"
+	"strings"
 )
 
 type AcsResponse interface {
@@ -86,12 +88,22 @@ func Unmarshal(response AcsResponse, httpResponse *http.Response, format string)
 	if err != nil {
 		return
 	}
-	if !response.IsSuccess() {
-		err = errors.New(fmt.Sprintf("%d %s", response.GetHttpStatus(), response.GetHttpContentString()))
+
+	if _, isCommonResponse := response.(CommonResponse); isCommonResponse {
 		return
 	}
 
-	if _, isCommonResponse := response.(CommonResponse); isCommonResponse {
+	if !response.IsSuccess() {
+		if contentType, ok := response.GetHttpHeaders()["Content-Type"]; ok {
+			for _, v := range contentType {
+				if strings.Contains(v, requests.Json) {
+					json.Unmarshal(response.GetHttpContentBytes(), response)
+					break
+				}
+			}
+		}
+
+		err = errors.New(fmt.Sprintf("%d %s", response.GetHttpStatus(), response.GetHttpContentString()))
 		return
 	}