Imports System.Data.SqlClient
Imports System.IO
Imports System.Net
Imports System.Text
Public Class Form1
    Dim ConString, ConString2, SQL1, SQL2 As String
    Dim conn As New SqlConnection : Public conn1 As New SqlConnection : Public cmd As New SqlCommand : Public cmd1 As New SqlCommand
    Dim dr As SqlDataReader : Dim da As New SqlDataAdapter
    Dim DTP, DTP1, DTP2, DTP3, DTP4, DTP5, DTP6 As String

    Friend Sub ConnOpen()
        conn.Close() : If conn.State = ConnectionState.Closed Then : conn.ConnectionString = ConString : conn.Open() : End If
    End Sub
    Friend Sub CmdSet_For_dr()
        cmd.CommandText = SQL1 : cmd.Connection = conn : dr = cmd.ExecuteReader
    End Sub
    Private Sub 分類下拉表單資料載入()
        ConnOpen() : SQL1 = "SELECT  客戶 FROM  客戶IP讀取 ORDER BY 客戶" : CmdSet_For_dr()
        客戶_tb.Items.Clear() : While (dr.Read()) : 客戶_tb.Items.Add(dr("客戶")) : End While : conn.Close()
    End Sub
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim Str As String = Application.StartupPath
        If File.Exists(Str + "\LIVE.txt") Then
            Dim filereader = My.Computer.FileSystem.OpenTextFileReader(Str + "\LIVE.txt", System.Text.Encoding.Default)
            Dim Text As String = "" : Dim line As String = filereader.ReadLine()
            While Not (line Is Nothing) : Text = line : line = filereader.ReadLine() : End While : filereader.Close()
            客戶_tb.Text = Strings.Left(Text, 5)
        End If

        ConString = "Data Source=mssql-147629-0.cloudclusters.net,12711;
                     Initial Catalog=GCM-IP-DATE02;Persist Security Info=True;User ID=b70340;Password=Lee0911274990;Max pool size = 200;Connection Timeout=0"
        Me.Text = "伺服器外網IP查詢 - 未啟動"
    End Sub
    Private Sub Form1_Shown(sender As Object, e As EventArgs) Handles MyBase.Shown
        分類下拉表單資料載入() : 查詢() : 啟動_bt.PerformClick()
    End Sub
    Private Sub 查詢()
        Try
            Dim client As New WebClient()                                               ' 使用 WebClient 發送 HTTP GET 請求並獲取響應
            Dim response As String = client.DownloadString("https://api.ipify.org")     ' 解析響應以獲取外部 IP 地址
            Dim externalIP As String = response.Trim() : IP_tb.Text = externalIP        ' 將外部 IP 地址顯示在視窗上
        Catch ex As Exception : MessageBox.Show("錯誤訊息: 執行外部IP查詢時出現錯誤(" & ex.Message & ")") : End Try
    End Sub
    Private Sub 啟動_bt_Click(sender As Object, e As EventArgs) Handles 啟動_bt.Click
        If 客戶_tb.Text <> "" Then
            Dim Strs As String = Application.StartupPath
            If File.Exists(Strs + "\LIVE.txt") Then : File.Delete(Strs + "\LIVE.txt") : End If
            Dim FilePath As String = Strs + "\LIVE.txt"
            Try
                Using fs As IO.FileStream = New IO.FileStream(FilePath, FileMode.Append)
                    Using sw As StreamWriter = New StreamWriter(fs, Encoding.Default)
                        Dim str As String = 客戶_tb.Text
                        sw.WriteLine(str)   '插入一整行
                        sw.Flush()
                    End Using
                End Using
            Catch ex As Exception
            End Try

            查詢() : Me.Text = "伺服器外網IP查詢 - 已啟動"
            If 客戶_tb.Text = "" Or IP_tb.Text = "" Then : Else : ConnOpen() : SQL1 = "SELECT  客戶, IP  FROM  客戶IP讀取 WHERE 客戶 LIKE N'" & 客戶_tb.Text & "'" : CmdSet_For_dr()
                If dr.Read Then
                    If IP_tb.Text <> dr("IP").ToString Then
                        ConnOpen() : SQL1 = "UPDATE  客戶IP讀取  SET  IP = N'" & IP_tb.Text & "' WHERE 客戶 LIKE N'" & 客戶_tb.Text & "'" : CmdSet_For_dr()
                        ConnOpen() : SQL1 = "UPDATE  伺服器檢測  SET  IP = N'" & IP_tb.Text & "' WHERE 名稱 LIKE N'" & 客戶_tb.Text & "'" : CmdSet_For_dr()
                    End If
                Else : ConnOpen() : SQL1 = "INSERT INTO  客戶IP讀取 (客戶, IP) VALUES (N'" & 客戶_tb.Text & "', N'" & IP_tb.Text & "')" : CmdSet_For_dr() : End If
            End If
            Timer1.Enabled = True
        End If
    End Sub
    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
        查詢() : Me.Text = "伺服器外網IP查詢 - 已啟動"
        If 客戶_tb.Text = "" Or IP_tb.Text = "" Then : Else : ConnOpen() : SQL1 = "SELECT  客戶, IP  FROM  客戶IP讀取 WHERE 客戶 LIKE N'" & 客戶_tb.Text & "'" : CmdSet_For_dr()
            If dr.Read Then
                If IP_tb.Text <> dr("IP").ToString Then
                    ConnOpen() : SQL1 = "UPDATE  客戶IP讀取  SET  IP = N'" & IP_tb.Text & "' WHERE 客戶 LIKE N'" & 客戶_tb.Text & "'" : CmdSet_For_dr()
                    ConnOpen() : SQL1 = "UPDATE  伺服器檢測  SET  IP = N'" & IP_tb.Text & "' WHERE 名稱 LIKE N'" & 客戶_tb.Text & "'" : CmdSet_For_dr()
                End If
            Else : ConnOpen() : SQL1 = "INSERT INTO  客戶IP讀取 (客戶, IP) VALUES (N'" & 客戶_tb.Text & "', N'" & IP_tb.Text & "')" : CmdSet_For_dr() : End If
        End If
    End Sub
End Class