📄 frmupnptraversalin.frm
字号:
VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Object = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}#2.0#0"; "Mscomctl.ocx"
Begin VB.Form frmUPnPTraversalIn
Caption = "内网服务穿越NAT"
ClientHeight = 3375
ClientLeft = 60
ClientTop = 450
ClientWidth = 7110
LinkTopic = "Form2"
ScaleHeight = 3375
ScaleWidth = 7110
StartUpPosition = 1 'CenterOwner
Begin VB.CommandButton cmdCancel
Caption = "取消穿越"
Height = 375
Left = 5085
TabIndex = 16
Top = 2385
Width = 1620
End
Begin MSComctlLib.StatusBar stbDisplay
Align = 2 'Align Bottom
Height = 345
Left = 0
TabIndex = 15
Top = 3030
Width = 7110
_ExtentX = 12541
_ExtentY = 609
_Version = 393216
BeginProperty Panels {8E3867A5-8586-11D1-B16A-00C0F0283628}
NumPanels = 1
BeginProperty Panel1 {8E3867AB-8586-11D1-B16A-00C0F0283628}
AutoSize = 2
EndProperty
EndProperty
End
Begin MSWinsockLib.Winsock wskIn
Left = 2835
Top = 2362
_ExtentX = 741
_ExtentY = 741
_Version = 393216
End
Begin VB.CommandButton cmdOk
Caption = "开始穿越"
Height = 375
Left = 3315
TabIndex = 13
Top = 2385
Width = 1620
End
Begin VB.CommandButton cmdQuery
Caption = "获取NAT外网信息"
Height = 375
Left = 420
TabIndex = 12
Top = 2385
Width = 1620
End
Begin VB.TextBox txtService
Height = 285
Index = 5
Left = 5145
TabIndex = 11
Text = "Text1"
Top = 1770
Width = 1575
End
Begin VB.TextBox txtService
Height = 285
Index = 4
Left = 5145
TabIndex = 10
Text = "Text1"
Top = 1365
Width = 1575
End
Begin VB.TextBox txtService
Height = 285
Index = 3
Left = 1740
TabIndex = 9
Text = "Text1"
Top = 1770
Width = 1575
End
Begin VB.TextBox txtService
Height = 285
Index = 2
Left = 1740
TabIndex = 8
Text = "Text1"
Top = 1365
Width = 1575
End
Begin VB.TextBox txtService
Height = 285
Index = 1
Left = 1740
TabIndex = 7
Text = "Text1"
Top = 975
Width = 4965
End
Begin VB.TextBox txtService
Height = 285
Index = 0
Left = 1740
TabIndex = 6
Text = "Text1"
Top = 570
Width = 4950
End
Begin VB.Label Label2
AutoSize = -1 'True
Caption = "请输入以下字段："
Height = 195
Left = 420
TabIndex = 14
Top = 195
Width = 1440
End
Begin VB.Label Label1
AutoSize = -1 'True
Caption = "NAT外网服务端口："
Height = 195
Index = 5
Left = 3540
TabIndex = 5
Top = 1815
Width = 1590
End
Begin VB.Label Label1
AutoSize = -1 'True
Caption = "NAT外网服务地址："
Height = 195
Index = 4
Left = 3540
TabIndex = 4
Top = 1410
Width = 1590
End
Begin VB.Label Label1
AutoSize = -1 'True
Caption = "服务协议："
Height = 195
Index = 1
Left = 420
TabIndex = 3
Top = 1020
Width = 900
End
Begin VB.Label Label1
AutoSize = -1 'True
Caption = "内网服务端口："
Height = 195
Index = 3
Left = 420
TabIndex = 2
Top = 1815
Width = 1260
End
Begin VB.Label Label1
AutoSize = -1 'True
Caption = "内网服务地址："
Height = 195
Index = 2
Left = 420
TabIndex = 1
Top = 1410
Width = 1260
End
Begin VB.Label Label1
AutoSize = -1 'True
Caption = "服务名："
Height = 195
Index = 0
Left = 420
TabIndex = 0
Top = 615
Width = 720
End
End
Attribute VB_Name = "frmUPnPTraversalIn"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
'0.初始化文本框数据
Private Sub Form_Load()
txtService(0).Text = "ftp服务"
txtService(1).Text = "TCP" '需要全部大写，否则出错
txtService(2).Text = wskIn.LocalIP
txtService(3).Text = 21
txtService(4).Text = ""
txtService(5).Text = 621
stbDisplay.Panels(1).Width = stbDisplay.Width
End Sub
'1.查询NAT外网地址
Private Sub cmdQuery_Click()
txtService(4).Text = GetExternalIP()
End Sub
'2.设置NAT，让外网客户端能主动访问内网客户端某服务
Private Sub cmdOK_Click()
If CheckInput() = False Then
Exit Sub
End If
DisplayMsg "正在设置NAT，穿越中..."
If SetExternalPort(txtService(5).Text, txtService(1).Text, txtService(3).Text, wskIn.LocalIP, True, Me.Caption + "：" + txtService(0).Text) = True Then
DisplayMsg "设置NAT成功，穿越成功。外网用户通过" + txtService(4).Text + ":" + txtService(5).Text + "可以访问内网服务了"
Else
DisplayMsg "设置NAT失败，穿越失败。"
End If
End Sub
'3.取消NAT设置，不让外网客户端能主动访问内网客户端某服务
Private Sub cmdCancel_Click()
DisplayMsg "正在设置NAT，取消穿越中..."
If DeleteExternalPort(txtService(5).Text, txtService(1).Text) = True Then
DisplayMsg "设置NAT成功，取消穿越成功。外网用户无法通过" + txtService(4).Text + ":" + txtService(5).Text + "访问内网服务了"
Else
DisplayMsg "设置NAT失败，取消穿越失败。"
End If
End Sub
'改变文本框底色
Private Sub txtService_GotFocus(Index As Integer)
txtService(Index).BackColor = &H80000018
End Sub
'改变文本框底色
Private Sub txtService_LostFocus(Index As Integer)
txtService(Index).BackColor = vbWhite
End Sub
'处理文本框中按下回车键
Private Sub txtService_KeyPress(Index As Integer, KeyAscii As Integer)
Dim intTemp As Integer
If KeyAscii = 13 Then
If Index = txtService.UBound Then
intTemp = txtService.LBound
Else
intTemp = Index + 1
End If
txtService(intTemp).SetFocus
KeyAscii = 0
End If
End Sub
'检查输入
Private Function CheckInput() As Boolean
CheckInput = True
Dim i As Integer
For i = txtService.LBound To txtService.UBound
If txtService(i).Text = "" Then
MsgBox "请输入数据到" & Label1(i).Caption
txtService(i).SetFocus
CheckInput = False
Exit Function
End If
Next i
txtService(1).Text = UCase(txtService(1).Text)
If txtService(1).Text <> "TCP" And txtService(1).Text <> "UDP" Then
MsgBox "请输入正确数据到" & Label1(1).Caption & "如：TCP、UDP"
txtService(1).SetFocus
CheckInput = False
Exit Function
End If
' 其他的情况目前没有检查，如IP地址合法性、端口合法性等
End Function
'显示信息
Private Sub DisplayMsg(strMsg As String)
stbDisplay.Panels(1).Text = strMsg
End Sub
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -