WCF实现客户端自动更新

IServiceUpdate

using System.IO;
using System.ServiceModel;
using System.ServiceModel.Web;

namespace ServiceUpdater
{
    // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的接口名“IServiceUpdate”。
    [ServiceContract]
    public interface IServiceUpdate
    {
        [OperationContract, WebInvoke(Method = "GET", UriTemplate = "SyncTool/{fileName}")]
        Stream SyncTool(string fileName);

        [OperationContract, WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json)]
        Stream DownloadFile(PostData postData);
    }

    public class PostData
    {
        public string CustomerCode { get; set; }
        public string Token { get; set; }
        public string Mac { get; set; }
        public string Filename { get; set; }
    }
}

ServiceUpdate

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
using log4net;

namespace ServiceUpdater
{
    // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的类名“ServiceUpdate”。
    public class ServiceUpdate : IServiceUpdate
    {
        public Stream SyncTool(string fileName)
        {
            string basePath = AppDomain.CurrentDomain.BaseDirectory + "Release\SyncTool\";
            string downloadFileName = basePath + fileName;
            if (File.Exists(downloadFileName) && WebOperationContext.Current != null)
            {
                var fileExt = Path.GetExtension(downloadFileName);
                switch (fileExt.ToLower())
                {
                    case ".js":
                        WebOperationContext.Current.OutgoingResponse.ContentType = "text/javascript";
                        break;
                    case ".css":
                        WebOperationContext.Current.OutgoingResponse.ContentType = "text/css";
                        break;
                    case ".html":
                    case ".htm":
                        WebOperationContext.Current.OutgoingResponse.ContentType = "text/html";
                        break;
                }
                LogManager.GetLogger(this.GetType()).Info("File downloaded = " + downloadFileName);
                return File.OpenRead(downloadFileName);
            }
            return null;
        }

        public Stream DownloadFile(PostData postData)
        {
            if (postData != null
                && !string.IsNullOrEmpty(postData.CustomerCode)
                && !string.IsNullOrEmpty(postData.Token)
                && !string.IsNullOrEmpty(postData.Mac)
                && !string.IsNullOrEmpty(postData.Filename))
            {
                string downFilename = AppDomain.CurrentDomain.BaseDirectory + "Release\" + postData.CustomerCode + "\" + postData.Filename;
                if (File.Exists(downFilename))
                {
                    LogManager.GetLogger(this.GetType()).Info(
                        "File download = " + downFilename
                        + Environment.NewLine + "CustomerCode = " + postData.CustomerCode
                        + Environment.NewLine + "Token = " + postData.Token
                        + Environment.NewLine + "Mac = " + postData.Mac);
                    return File.OpenRead(downFilename);
                }
            }
            return null;
        }
    }
}