PCL-Communist/Plain Craft Launcher 2/Modules/ModSecret.vb

'由于包含加解密等安全信息，本文件中的部分代码已被删除

Imports System.Net
Imports System.Reflection
Imports System.Security.Cryptography

Friend Module ModSecret

#Region "杂项"

    '在开源内容的注册表键与普通内容的注册表键隔离
    Public Const RegFolder As String = "PCLDebug"

    Friend Sub SecretOnApplicationStart()
        '提升 UI 线程优先级
        Thread.CurrentThread.Priority = ThreadPriority.Highest
        '确保 .NET Framework 版本
        Try
            Dim VersionTest As New FormattedText("", Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, Fonts.SystemTypefaces.First, 96, New MyColor, DPI)
        Catch ex As UriFormatException '修复 #3555
            Environment.SetEnvironmentVariable("windir", Environment.GetEnvironmentVariable("SystemRoot"), EnvironmentVariableTarget.User)
            Dim VersionTest As New FormattedText("", Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, Fonts.SystemTypefaces.First, 96, New MyColor, DPI)
        End Try
        '检测当前文件夹权限
        Try
            Directory.CreateDirectory(Path & "PCL")
        Catch ex As Exception
            MsgBox($"PCL 无法创建 PCL 文件夹（{Path & "PCL"}），请尝试：" & vbCrLf &
                  "1. 将 PCL 移动到其他文件夹" & If(Path.StartsWithF("C:", True), "，例如 C 盘和桌面以外的其他位置。", "。") & vbCrLf &
                  "2. 删除当前目录中的 PCL 文件夹，然后再试。" & vbCrLf &
                  "3. 右键 PCL 选择属性，打开 兼容性 中的 以管理员身份运行此程序。",
                MsgBoxStyle.Critical, "运行环境错误")
            Environment.[Exit](Result.Cancel)
        End Try
        If Not CheckPermission(Path & "PCL") Then
            MsgBox("PCL 没有对当前文件夹的写入权限，请尝试：" & vbCrLf &
                  "1. 将 PCL 移动到其他文件夹" & If(Path.StartsWithF("C:", True), "，例如 C 盘和桌面以外的其他位置。", "。") & vbCrLf &
                  "2. 删除当前目录中的 PCL 文件夹，然后再试。" & vbCrLf &
                  "3. 右键 PCL 选择属性，打开 兼容性 中的 以管理员身份运行此程序。",
                MsgBoxStyle.Critical, "运行环境错误")
            Environment.[Exit](Result.Cancel)
        End If
        '开源版本提示
        MyMsgBox($"该版本中不包含以下特性：
- 微软账户登录：需要 Client ID（你可以创建并申请一个，然后添加到 McLoginMsStart 方法中）
- CurseForge 查询：需要 API Key（你可以申请一个，然后添加到 SecretHeadersSign 方法中）
- 更新与联网通知：避免滥用隐患
- 主题切换：这是需要赞助解锁的纪念性质的功能，别让赞助者太伤心啦……
- 百宝箱：开发早期往里面塞了些开发工具，整理起来太麻烦了", "开源版本说明")
    End Sub

    ''' <summary>
    ''' 获取设备标识码。
    ''' </summary>
    Friend Function SecretGetUniqueAddress() As String
        Return "0000-0000-0000-0000"
    End Function

    Friend Sub SecretLaunchJvmArgs(ByRef DataList As List(Of String))
        Dim DataJvmCustom As String = Setup.Get("VersionAdvanceJvm", Version:=McVersionCurrent)
        DataList.Insert(0, If(DataJvmCustom = "", Setup.Get("LaunchAdvanceJvm"), DataJvmCustom)) '可变 JVM 参数
        McLaunchLog("当前剩余内存：" & Math.Round(My.Computer.Info.AvailablePhysicalMemory / 1024 / 1024 / 1024 * 10) / 10 & "G")
        DataList.Add("-Xmn" & Math.Floor(PageVersionSetup.GetRam(McVersionCurrent) * 1024 * 0.15) & "m")
        DataList.Add("-Xmx" & Math.Floor(PageVersionSetup.GetRam(McVersionCurrent) * 1024) & "m")
        If Not DataList.Any(Function(d) d.Contains("-Dlog4j2.formatMsgNoLookups=true")) Then DataList.Add("-Dlog4j2.formatMsgNoLookups=true")
    End Sub

    ''' <summary>
    ''' 打码字符串中的 AccessToken。
    ''' </summary>
    Friend Function SecretFilter(Raw As String, FilterChar As Char) As String
        '打码 "accessToken " 后的内容
        If Raw.Contains("accessToken ") Then
            For Each Token In RegexSearch(Raw, "(?<=accessToken ([^ ]{5}))[^ ]+(?=[^ ]{5})")
                Raw = Raw.Replace(Token, New String(FilterChar, Token.Count))
            Next
        End If
        '打码当前登录的结果
        Dim AccessToken As String = McLoginLoader.Output.AccessToken
        If AccessToken Is Nothing OrElse AccessToken.Length < 10 OrElse Not Raw.ContainsF(AccessToken, True) OrElse
            McLoginLoader.Output.Uuid = McLoginLoader.Output.AccessToken Then 'UUID 和 AccessToken 一样则不打码
            Return Raw
        Else
            Return Raw.Replace(AccessToken, Left(AccessToken, 5) & New String(FilterChar, AccessToken.Length - 10) & Right(AccessToken, 5))
        End If
    End Function

#End Region

#Region "网络鉴权"

    Friend Function SecretCdnSign(UrlWithMark As String)
        '只处理以 {CDN} 结尾的链接
        If Not UrlWithMark.EndsWithF("{CDN}") Then Return UrlWithMark
        Return UrlWithMark.Replace("{CDN}", "").Replace(" ", "%20")
    End Function
    ''' <summary>
    ''' 设置 Headers 的 UA、Referer。
    ''' </summary>
    Friend Sub SecretHeadersSign(Url As String, ByRef Client As CookieWebClient, Optional UseBrowserUserAgent As Boolean = False)
        If ApplicationStartTick < 1 Then Return '禁止在没有运行程序的情况下通过反射调用
        If UseBrowserUserAgent Then
            Client.Headers("User-Agent") = "PCL2/" & VersionStandardCode & " Mozilla/5.0 AppleWebKit/537.36 Chrome/63.0.3239.132 Safari/537.36"
        Else
            Client.Headers("User-Agent") = "PCL2/" & VersionStandardCode
        End If
        Client.Headers("Referer") = "http://" & VersionCode & ".pcl2.server/"
        '如果你有 CurseForge API Key，请添加到 Headers 中，以恢复对 CurseForge 的访问
    End Sub
    ''' <summary>
    ''' 设置 Headers 的 UA、Referer。
    ''' </summary>
    Friend Sub SecretHeadersSign(Url As String, ByRef Request As HttpWebRequest, Optional UseBrowserUserAgent As Boolean = False)
        If ApplicationStartTick < 1 Then Return '禁止在没有运行程序的情况下通过反射调用
        If UseBrowserUserAgent Then
            Request.UserAgent = "PCL2/" & VersionStandardCode & " Mozilla/5.0 AppleWebKit/537.36 Chrome/63.0.3239.132 Safari/537.36"
        Else
            Request.UserAgent = "PCL2/" & VersionStandardCode
        End If
        Request.Referer = "http://" & VersionCode & ".pcl2.server/"
        '如果你有 CurseForge API Key，请添加到 Headers 中，以恢复对 CurseForge 的访问
    End Sub

#End Region

#Region "字符串加解密"

    ''' <summary>
    ''' 获取八位密钥。
    ''' </summary>
    Private Function SecretKeyGet(Key As String) As String
        Return "00000000"
    End Function
    ''' <summary>
    ''' 加密字符串。
    ''' </summary>
    Friend Function SecretEncrypt(SourceString As String, Optional Key As String = "") As String
        Key = SecretKeyGet(Key)
        Dim btKey As Byte() = Encoding.UTF8.GetBytes(Key)
        Dim btIV As Byte() = Encoding.UTF8.GetBytes("87160295")
        Dim des As New DESCryptoServiceProvider
        Using MS As New MemoryStream
            Dim inData As Byte() = Encoding.UTF8.GetBytes(SourceString)
            Using cs As New CryptoStream(MS, des.CreateEncryptor(btKey, btIV), CryptoStreamMode.Write)
                cs.Write(inData, 0, inData.Length)
                cs.FlushFinalBlock()
                Return Convert.ToBase64String(MS.ToArray())
            End Using
        End Using
    End Function
    ''' <summary>
    ''' 解密字符串。
    ''' </summary>
    Friend Function SecretDecrypt(SourceString As String, Optional Key As String = "") As String
        Key = SecretKeyGet(Key)
        Dim btKey As Byte() = Encoding.UTF8.GetBytes(Key)
        Dim btIV As Byte() = Encoding.UTF8.GetBytes("87160295")
        Dim des As New DESCryptoServiceProvider
        Using MS As New MemoryStream
            Dim inData As Byte() = Convert.FromBase64String(SourceString)
            Using cs As New CryptoStream(MS, des.CreateDecryptor(btKey, btIV), CryptoStreamMode.Write)
                cs.Write(inData, 0, inData.Length)
                cs.FlushFinalBlock()
                Return Encoding.UTF8.GetString(MS.ToArray())
            End Using
        End Using
    End Function

#End Region

#Region "主题"

    Public Color1 As New MyColor(52, 61, 74)
    Public Color2 As New MyColor(11, 91, 203)
    Public Color3 As New MyColor(19, 112, 243)
    Public Color4 As New MyColor(72, 144, 245)
    Public Color5 As New MyColor(150, 192, 249)
    Public Color6 As New MyColor(213, 230, 253)
    Public Color7 As New MyColor(222, 236, 253)
    Public Color8 As New MyColor(234, 242, 254)
    Public ColorBg0 As New MyColor(150, 192, 249)
    Public ColorBg1 As New MyColor(190, Color7)
    Public ColorGray1 As New MyColor(64, 64, 64)
    Public ColorGray2 As New MyColor(115, 115, 115)
    Public ColorGray3 As New MyColor(140, 140, 140)
    Public ColorGray4 As New MyColor(166, 166, 166)
    Public ColorGray5 As New MyColor(204, 204, 204)
    Public ColorGray6 As New MyColor(235, 235, 235)
    Public ColorGray7 As New MyColor(240, 240, 240)
    Public ColorGray8 As New MyColor(245, 245, 245)
    Public ColorSemiTransparent As New MyColor(1, Color8)

    Public ThemeNow As Integer = -1
    Public ColorHue As Integer = 210, ColorSat As Integer = 85, ColorLightAdjust As Integer = 0, ColorHueTopbarDelta As Object = 0
    Public ThemeDontClick As Integer = 0

    Public Sub ThemeRefresh(Optional NewTheme As Integer = -1)
        Hint("该版本中不包含主题功能……")
    End Sub
    Public Sub ThemeRefreshMain()
        RunInUi(
        Sub()
            If Not FrmMain.IsLoaded Then Exit Sub
            '顶部条背景
            Dim Brush = New LinearGradientBrush With {.EndPoint = New Point(1, 0), .StartPoint = New Point(0, 0)}
            If ThemeNow = 5 Then
                Brush.GradientStops.Add(New GradientStop With {.Offset = 0, .Color = New MyColor().FromHSL2(ColorHue, ColorSat, 25)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 0.5, .Color = New MyColor().FromHSL2(ColorHue, ColorSat, 15)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 1, .Color = New MyColor().FromHSL2(ColorHue, ColorSat, 25)})
                FrmMain.PanTitle.Background = Brush
                FrmMain.PanTitle.Background.Freeze()
            ElseIf Not (ThemeNow = 12 OrElse ThemeDontClick = 2) Then
                If TypeOf ColorHueTopbarDelta Is Integer Then
                    Brush.GradientStops.Add(New GradientStop With {.Offset = 0, .Color = New MyColor().FromHSL2(ColorHue - ColorHueTopbarDelta, ColorSat, 48 + ColorLightAdjust)})
                    Brush.GradientStops.Add(New GradientStop With {.Offset = 0.5, .Color = New MyColor().FromHSL2(ColorHue, ColorSat, 54 + ColorLightAdjust)})
                    Brush.GradientStops.Add(New GradientStop With {.Offset = 1, .Color = New MyColor().FromHSL2(ColorHue + ColorHueTopbarDelta, ColorSat, 48 + ColorLightAdjust)})
                Else
                    Brush.GradientStops.Add(New GradientStop With {.Offset = 0, .Color = New MyColor().FromHSL2(ColorHue + ColorHueTopbarDelta(0), ColorSat, 48 + ColorLightAdjust)})
                    Brush.GradientStops.Add(New GradientStop With {.Offset = 0.5, .Color = New MyColor().FromHSL2(ColorHue + ColorHueTopbarDelta(1), ColorSat, 54 + ColorLightAdjust)})
                    Brush.GradientStops.Add(New GradientStop With {.Offset = 1, .Color = New MyColor().FromHSL2(ColorHue + ColorHueTopbarDelta(2), ColorSat, 48 + ColorLightAdjust)})
                End If
                FrmMain.PanTitle.Background = Brush
                FrmMain.PanTitle.Background.Freeze()
            Else
                Brush.GradientStops.Add(New GradientStop With {.Offset = 0, .Color = New MyColor().FromHSL2(ColorHue - 21, ColorSat, 53 + ColorLightAdjust)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 0.33, .Color = New MyColor().FromHSL2(ColorHue - 7, ColorSat, 47 + ColorLightAdjust)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 0.67, .Color = New MyColor().FromHSL2(ColorHue + 7, ColorSat, 47 + ColorLightAdjust)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 1, .Color = New MyColor().FromHSL2(ColorHue + 21, ColorSat, 53 + ColorLightAdjust)})
                FrmMain.PanTitle.Background = Brush
            End If
            '主页面背景
            If Setup.Get("UiBackgroundColorful") Then
                Brush = New LinearGradientBrush With {.EndPoint = New Point(0.1, 1), .StartPoint = New Point(0.9, 0)}
                Brush.GradientStops.Add(New GradientStop With {.Offset = -0.1, .Color = New MyColor().FromHSL2(ColorHue - 20, Math.Min(60, ColorSat) * 0.5, 80)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 0.4, .Color = New MyColor().FromHSL2(ColorHue, ColorSat * 0.9, 90)})
                Brush.GradientStops.Add(New GradientStop With {.Offset = 1.1, .Color = New MyColor().FromHSL2(ColorHue + 20, Math.Min(60, ColorSat) * 0.5, 80)})
                FrmMain.PanForm.Background = Brush
            Else
                FrmMain.PanForm.Background = New MyColor(245, 245, 245)
            End If
            FrmMain.PanForm.Background.Freeze()
        End Sub)
    End Sub
    Public Sub ThemeCheckAll(EffectSetup As Boolean)
    End Sub
    Public Function ThemeCheckOne(Id As Integer) As Boolean
        Return True
    End Function
    Friend Function ThemeUnlock(Id As Integer, Optional ShowDoubleHint As Boolean = True, Optional UnlockHint As String = Nothing) As Boolean
        Return False
    End Function
    Public Function ThemeCheckGold(Optional Code As String = Nothing) As Boolean
        Return False
    End Function
    Public Function DonateCodeInput() As Boolean?
    End Function

#End Region

#Region "更新"

    Public IsUpdateStarted As Boolean = False
    Public IsUpdateWaitingRestart As Boolean = False
    Public Sub UpdateCheckByButton()
        Hint("该版本中不包含更新功能……")
    End Sub
    Public Sub UpdateStart(BaseUrl As String, Slient As Boolean, Optional ReceivedKey As String = Nothing, Optional ForceValidated As Boolean = False)
    End Sub
    Public Sub UpdateRestart(TriggerRestartAndByEnd As Boolean)
    End Sub
    Public Sub UpdateReplace(ProcessId As Integer, OldFileName As String, NewFileName As String, TriggerRestart As Boolean)
    End Sub

#End Region

#Region "联网通知"

    Public ServerLoader As New LoaderTask(Of Integer, Integer)("PCL 服务", Sub() Log("[Server] 该版本中不包含更新通知功能……"), Priority:=ThreadPriority.BelowNormal)

#End Region

End Module