ios - 如何限制 GCDWebServer 中允许的 IP 的连接

Question

我正在使用 GCDWebServer 类(太棒了!)，想知道是否可以通过远程 IP 限制允许的连接。

server.addDefaultHandlerForMethod("GET", requestClass: GCDWebServerRequest.self, processBlock: {request in

    let remote = request.remoteAddressString.substringToIndex(request.remoteAddressString.lastIndexOf(":")!)
    let local =  request.localAddressString.substringToIndex(request.localAddressString.lastIndexOf(":")!)

    print("\(remote) vs \(local)")
    if remote == local {
        return nil
    }

    //Forbidden
    return GCDWebServerResponse(statusCode: 403);

})

我希望上面的内容能够工作，但事实并非如此，我的意思是当 IP 不同时它会发送 403 Forbidden，但否则最终结果是:

[DEBUG] 连接已中止，套接字 13 上的状态代码为 500

谁能帮我解决这个问题吗？

附注以下也有效

    server.addDefaultHandlerForMethod("GET",
                                      requestClass: GCDWebServerRequest.self,
                                      processBlock: {request in

    print(request.remoteAddressString)
    print(request.localAddressString)

    let remote = request.remoteAddressString.substringToIndex(request.remoteAddressString.lastIndexOf(":")!)
    let local =  request.localAddressString.substringToIndex(request.localAddressString.lastIndexOf(":")!)

    print("\(remote) vs \(local)")
    if remote == local {
        return GCDWebServerResponse(statusCode: 200)
    }
    //Forbidden
    return GCDWebServerResponse(statusCode: 403);
})

Answer 1

参见GCDWebServer.h了解GCDWebServerProcessBlock:

The block must return a GCDWebServerResponse or nil on error, which will result in a 500 HTTP status code returned to the client.