Shopify验证Scala中的webhook调用

我正在为ShopifyWebhook实现一个使用Play2调用的简单web服务。我想使用包含的“X-Shopify-Hmac-Sha256”头参数验证调用是否来自Shopify

Shopify文档只包含一个Ruby和Php示例，我认为翻译起来并不难。我似乎在挣扎

下面是我的简单Scala shopify util对象：

    import play.api.mvc.Request
    import play.api.mvc.AnyContent
    import javax.crypto.Mac
    import javax.crypto.spec.SecretKeySpec
    import play.api.Logger
    import javax.crypto.SecretKey
    import org.apache.commons.codec.binary.Base64

    object ShopifyUtils {
        def verifyWebhookCall(request : Request[AnyContent], secretKey: String) : Boolean = {

          if (!request.headers.get("X-Shopify-Hmac-Sha256").isDefined)
              false
          else
          {
            val headerHash = request.headers.get("X-Shopify-Hmac-Sha256").getOrElse("")
            val body = request.body.asJson.get.toString

            Logger.info("json '" + request.body.asJson.get.toString + "' = " + encode(secretKey, request.body.asJson.get.toString) );
            Logger.info("body '" + request.body.toString() + "' = " + encode(secretKey, request.body.toString) )

            Logger.info("headerHash " + headerHash);

            val calcHash = encode(secretKey, body)
            headerHash.equals(calcHash)
          }
        }

        def encode(key: String , data: String): String = {
          val sha256_HMAC = Mac.getInstance("HmacSHA256");
          val secret_key = new SecretKeySpec(key.getBytes(), "HmacSHA256");
          sha256_HMAC.init(secret_key);

          return new String( Base64.encodeBase64( sha256_HMAC.doFinal( data.getBytes ) ) ).trim
        }
    }

我生成的哈希与Shopify发送的哈希不同

要么是我的共享密钥错误（我不知道这是怎么回事），要么是我没有像Shopify那样散列相同的内容（我尝试了各种

request.body

output格式）

非常感谢收到任何提示/指南/建议

---

Tim

只需阅读原始帖子正文，然后运行验证签名即可。通过将主体抓取为JSON并将其转换为字符串，您可能会巧妙地操纵我们发送给您的响应

下面是我如何为几个使用webhooks（ruby）的项目完成的：

---

感谢csaunders为我指明了正确的方向

我使用的是默认的BodyParser

AnyContent

，当请求的内容类型指定为“application/json”时，它会隐式地将响应主体转换为json

我必须修改控制器对象以指定“原始”BodyParser：

    import play.api._
    import play.api.libs.iteratee.Enumerator
    import play.api.mvc.SimpleResult
    import play.api.mvc.ResponseHeader
    import play.api.libs.json._
    import play.Application
    import play.api.mvc._

    import javax.crypto.Mac
    import javax.crypto.spec.SecretKeySpec
    import play.api.Logger
    import javax.crypto.SecretKey
    import org.apache.commons.codec.binary.Base64

    object Purchase extends Controller { 

      val shopifyAppSecretKey = "11111111111111111111111111111111"

      def processPurchase() = Action( parse.raw ) {request =>

        val bodyRaw = request.body.asBytes(3000).getOrElse(Array[Byte]())
        val calculatedHash = encodeByteArray(shopifyAppSecretKey, bodyRaw)
        val shopifyHash = request.headers.get("X-Shopify-Hmac-Sha256").getOrElse("")

        Logger.info("keys '" + shopifyHash + "' || '" + calculatedHash + "' " + calculatedHash.equals(shopifyHash))

        val json: JsValue = Json.parse( new String(bodyRaw) )

        Ok( "Ok" ).as(HTML)
      }

      def encodeByteArray(key: String , data: Array[Byte]): String = {
        val sha256_HMAC = Mac.getInstance("HmacSHA256");
        val secret_key = new SecretKeySpec(key.getBytes(), "HmacSHA256");
        sha256_HMAC.init(secret_key);

        return new String( Base64.encodeBase64( sha256_HMAC.doFinal( data ) ) ).trim
      }
    }

使用“raw”BodyParser意味着您必须自己将字节数组转换为字符串，然后手动解析该字符串以获得json，但这不是真正的问题

现在一切都如期进行

谢谢

---

蒂姆

谢谢你。是的，你是对的，我得到的不是原始的请求主体，而是它的预解析版本。

    import play.api._
    import play.api.libs.iteratee.Enumerator
    import play.api.mvc.SimpleResult
    import play.api.mvc.ResponseHeader
    import play.api.libs.json._
    import play.Application
    import play.api.mvc._

    import javax.crypto.Mac
    import javax.crypto.spec.SecretKeySpec
    import play.api.Logger
    import javax.crypto.SecretKey
    import org.apache.commons.codec.binary.Base64

    object Purchase extends Controller { 

      val shopifyAppSecretKey = "11111111111111111111111111111111"

      def processPurchase() = Action( parse.raw ) {request =>

        val bodyRaw = request.body.asBytes(3000).getOrElse(Array[Byte]())
        val calculatedHash = encodeByteArray(shopifyAppSecretKey, bodyRaw)
        val shopifyHash = request.headers.get("X-Shopify-Hmac-Sha256").getOrElse("")

        Logger.info("keys '" + shopifyHash + "' || '" + calculatedHash + "' " + calculatedHash.equals(shopifyHash))

        val json: JsValue = Json.parse( new String(bodyRaw) )

        Ok( "Ok" ).as(HTML)
      }

      def encodeByteArray(key: String , data: Array[Byte]): String = {
        val sha256_HMAC = Mac.getInstance("HmacSHA256");
        val secret_key = new SecretKeySpec(key.getBytes(), "HmacSHA256");
        sha256_HMAC.init(secret_key);

        return new String( Base64.encodeBase64( sha256_HMAC.doFinal( data ) ) ).trim
      }
    }