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--  专家坐堂  (http://www.foxtable.com/bbs/list.asp?boardid=2)
----  如何控制域名子目录的详情授权？  (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=172444)
--  作者：wh420
--  发布时间：2021/10/13 11:22:00
--  如何控制域名子目录的详情授权？
现有域名abc.com，想对www.abc.com/list/a.htm和www.abc.com/list/b.htm实现微信授权访问，而http://WWW.ABC.COM/OTHER/list.htm则不需要网页授权，可随意访问。请问老师这个如何写代码？
Dim sb As New StringBuilder
sb.AppendLine("<meta name=\'viewport\' c>")
If e.host = "wexin.foxtable.com" Then \'授权测试
    Dim UserName As String
    Dim OpenID As String
    If e.GetValues.ContainsKey("code") Then \'如果是通过授权链接跳转而来,就从链接重提取code来获取openid
        Dim ul As String  = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code"
        ul = CExp(ul,"wx8acdb7df5beb68fd","dec0df8a469518df30e9bdef0758c678",e.GetValues("code"))
        Dim hc As new HttpClient(ul)
        Dim jo As JObject = JObject.Parse(hc.GetData)
        If jo("openid") IsNot Nothing Then \'如果获取openid成功(成功的话,还会同时返回一个accesstiken,用于获取用户详情)
            OpenID = jo("openid")
            Dim dr As DataRow = DataTables("WXUsers").Find("openid =\'" & Openid & "\'")
            If dr IsNot Nothing Then
                UserName = dr("nickname")
            Else
                ul = "https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN "
                \'根据openid和accesstoken获取用户详情,注意这里这个accesstoken不是普通accesston,只能用于网页授权
                hc = New HttpClient(CExp(ul, jo("access_token"), OpenId))
                jo = jo.Parse(hc.GetData)
                If jo("openid") IsNot Nothing Then
                    UserName = jo("nickname")
                    dr = DataTables("WXUsers").AddNew()
                    Dim nms() As String = {"openid","nickname","sex","city","country","province","headimgurl"} \'""
                    For Each nm As String In nms
                        dr(nm) = jo(nm)
                    Next
                    dr.Save
                Else
                    e.WriteString(jo.ToString) \'在用户浏览器显示错误信息
                    Return
                End If
            End If
            e.AppendCookie("username",UserName) \'用户名和openid存储在Cookie中
            e.AppendCookie("openid",OpenID)
        Else
            e.WriteString(jo.ToString) \'在用户浏览器显示错误信息
            Return
        End If
    Else
        UserName = e.Cookies("username") \'从cookie获取用户名和openid
        OpenID = e.Cookies("openid")
        If userName = "" OrElse OpenID = "" Then
            Dim ul As String  = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx8acdb7df5beb68fd&redirect_uri=http%3a%2f%2fwexin.foxtable.com&response_type=code&scope=snsapi_userinfo&state=123#wechat_redirect"
            sb.Append("<meta http-equiv=\'Refresh\' c>") \'跳转到授权链接
            e.WriteString(sb.ToString)
            Return
        End If
    End If
    If  OpenID > "" And UserName > "" Then
        \'这里可以做进一步的权限判断
        sb.AppendLine("欢迎" & UserName & "光临, <a href=\'http://wexin.foxtable.com\'>刷新页面</a>")
    Else
        sb.AppendLine("你无权访问本系统")
    End If
End If
e.WriteString(sb.ToString)
--  作者：有点蓝
--  发布时间：2021/10/13 11:50:00
--  
参考：http://www.foxtable.com/mobilehelp/topics/0006.htm
如：
……
If e.host = "www.abc.com" Then \'授权测试
    Select Case e.Path
        Case "list\\a.htm","list\\b.htm"
    Dim UserName As String
    Dim OpenID As String
……
    Else
        UserName = e.Cookies("username") \'从cookie获取用户名和openid
        OpenID = e.Cookies("openid")
        If userName = "" OrElse OpenID = "" Then
            Dim ul As String  = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx8acdb7df5beb68fd&redirect_uri=http%3a%2f%2fwexin.foxtable.com%2f" & UrlEncode(e.Path.replace("\\","/")) & "&response_type=code&scope=snsapi_userinfo&state=123#wechat_redirect"
            sb.Append("<meta http-equiv=\'Refresh\' c>") \'跳转到授权链接
            e.WriteString(sb.ToString)
            Return
        End If
    End If
--  作者：zcl
--  发布时间：2021/10/14 16:13:00
--  
不错