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[C#]Webapi在筛选器中对Get与Post请求方式的接口验

[C#]Webapi在筛选器中对Get与Post请求方式的接口验

作者: 阿不不不不 | 来源:发表于2017-07-08 19:10 被阅读187次

    之前一直写Get方式的接口,最近在写个推的群推接口和头像上传接口时需要用Post方式进行请求。由于用Get请求进行接口的权限验证是通过拦截url中的token参数,在通过token参数去数据库中获得权限列表。但Post请求如果是参数放在请求体中那就不能用这种方式了。而且有的开发者post方式验证直接放在请求方法中验证,而不是放在filter类中。

    一、拦截url中token方式的权限验证

    //url获取token
               var content = actionContext.Request.Properties[ConfigParas.MS_HttpContext] as HttpContextBase;
               var getToken = content.Request.QueryString[ConfigParas.Token];
               //如果登录不用验证
               if (actionContext.ActionDescriptor.ActionName == "Login")
               {
                   base.IsAuthorized(actionContext);
                   return;
               }
    

    如果是get方式或者public Task<Hashtable> ImgUpload([FromUri]string token)这种方式的post方式请求是可以拦截到Url,继而可以获得token进行验证.验证方式

    if (!string.IsNullOrEmpty(getToken))
                {             
                    //进行token校验
                    if (!string.IsNullOrEmpty(getToken))
                    {
                        //解密用户ticket,并校验用户名密码是否匹配
                        var routes = new RouteCollection();
                        RouteConfig.RegisterRoutes(routes);
                        RouteData routeData = routes.GetRouteData(content);
                        //取出区域的控制器Action,id
                        string controller = actionContext.ActionDescriptor.ControllerDescriptor.ControllerName;
                        string action = actionContext.ActionDescriptor.ActionName;
                        //URL路径
                        string filePath = HttpContext.Current.Request.FilePath;
                        if (LoginUserManage.ValidateTicket(getToken) && ValiddatePermission(getToken, controller, action, filePath)) 
                        {
                            //已经登录,有权限,且没有单机登录限制
                            base.IsAuthorized(actionContext);
                        }
                        else
                        {
                            HandleUnauthorizedRequest(actionContext);
                        }
                    }
                    //如果取不到身份验证信息,并且不允许匿名访问,则返回未验证401
                    else
                    {
                        var attributes = actionContext.ActionDescriptor.GetCustomAttributes<AllowAnonymousAttribute>().OfType<AllowAnonymousAttribute>();
                        bool isAnonymous = attributes.Any(a => a is AllowAnonymousAttribute);
                        if (isAnonymous) base.OnAuthorization(actionContext);
                        else HandleUnauthorizedRequest(actionContext);
                    }
                }
    

    上图:拦截的token及获得的权限列表,请求参数放在url的post方式以同样的拦截方式

    gg.png
    ![4LTAKB{8]P]8TRHL(R%S406.png](https://img.haomeiwen.com/i2087602/e78e92ab1dd6eb16.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

    获取Post请求体中token对接口进行权限验证

    if (content.Request.HttpMethod == "POST")
                    {
                        base.OnAuthorization(actionContext);
                        //获取请求消息提数据  
                        Stream stream = actionContext.Request.Content.ReadAsStreamAsync().Result;
                        Encoding encoding = Encoding.UTF8;
                        stream.Position = 0;
                        string responseData = "";
                        using (StreamReader reader = new StreamReader(stream, encoding))
                        {
                            responseData = reader.ReadToEnd().ToString();
                        }
                        //反序列化进行处理  
                        var serialize = new JavaScriptSerializer();
                        var obj = serialize.Deserialize<PushBody>(responseData);
                        var psotToken = obj.token;
                        //进行token校验
     if (!string.IsNullOrEmpty(psotToken))
                        {
                            //解密用户ticket,并校验用户名密码是否匹配
                            //读取请求上下文中的Controller,Action,Id
                            var routes = new RouteCollection();
                            RouteConfig.RegisterRoutes(routes);
                            RouteData routeData = routes.GetRouteData(content);
                            //取出区域的控制器Action,id
                            string controller = actionContext.ActionDescriptor.ControllerDescriptor.ControllerName;
                            string action = actionContext.ActionDescriptor.ActionName;
                            //URL路径
                            string filePath = HttpContext.Current.Request.FilePath;
                            if (LoginUserManage.ValidateTicket(psotToken) && ValiddatePermission(psotToken, controller, action, filePath)) //if (LoginUserManage.ValidateTicket(token) && ValiddatePermission(token, controller, action, filePath))  
                            {
                                //已经登录,有权限,且没有单机登录限制
                                base.IsAuthorized(actionContext);
                            }
                            else
                            {
                                HandleUnauthorizedRequest(actionContext);
                            }
                        }
                        //如果取不到身份验证信息,并且不允许匿名访问,则返回未验证401
                        else
                        {
                            var attributes = actionContext.ActionDescriptor.GetCustomAttributes<AllowAnonymousAttribute>().OfType<AllowAnonymousAttribute>();
                            bool isAnonymous = attributes.Any(a => a is AllowAnonymousAttribute);
                            if (isAnonymous) base.OnAuthorization(actionContext);
                            else HandleUnauthorizedRequest(actionContext);
                        }
                    }
    

    上图:

    rr.png

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