NSIS脚本，检查权限和.NET环境－（摘录及原创）

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#.net #脚本 #installer #user #library #function

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本文介绍了如何使用NSIS脚本来检查安装程序的管理员权限，并检测.NET环境。通过提供的CheckAdmin和CheckDotNet函数，可以确保只有管理员才能运行安装程序，并在缺少.NET环境时提示用户进行安装。

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NSIS 官网：http://nsis.sourceforge.net/Main_Page

一款很好用的NSIS脚本编辑器（HM NIS EDIT: A Free NSIS Editor/IDE）：http://hmne.sourceforge.net/

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; Assist Functions, CheckAdmin, CheckPlugin, CheckQB, CheckDotNet, InstallDotNet, CheckPluginUsing
Function CheckAdmin
ClearErrors
UserInfo::GetName
IfErrors Win9x
Pop $0
UserInfo::GetAccountType
Pop $1
# GetOriginalAccountType will check the tokens of the original user of the
# current thread/process. If the user tokens were elevated or limited for
# this process, GetOriginalAccountType will return the non-restricted
# account type.
# On Vista with UAC, for example, this is not the same value when running
# with `RequestExecutionLevel user`. GetOriginalAccountType will return
# "admin" while GetAccountType will return "user".
UserInfo::GetOriginalAccountType
Pop $2
StrCmp $1 "Admin" 0 +3
          ;MessageBox MB_OK 'User "$0" is in the Administrators group${REALMSG}'
          Goto done
          StrCmp $1 "Power" 0 +3
   ;MessageBox MB_OK 'User "$0" is in the Power Users group${REALMSG}'
   Goto exit
StrCmp $1 "User" 0 +3
          ;MessageBox MB_OK 'User "$0" is just a regular user${REALMSG}'
   Goto exit
   StrCmp $1 "Guest" 0 +3
          ;MessageBox MB_OK 'User "$0" is a guest${REALMSG}'
          Goto exit
          MessageBox MB_OK "Unknown error"
          Goto exit
Win9x:
# This one means you don't need to care about admin or
# not admin because Windows 9x doesn't either
MessageBox MB_OK "Error! This DLL can't run under Windows 9x!"
exit:
MessageBox MB_OK "Only Administrator can run this application. Please run it again as Administrator."
Quit
done:
FunctionEnd

;以上方法来自NSIS自带例子

Function CheckDotNet
Call GetDotNETVersion
Pop $0
StrCmp $0 "not found" update1 check ; not found any .net library
check:
StrCpy $0 $0 "" 1 ;skip "v"
StrCpy $0 $0 3 ;get the version as "x.x"
StrCpy $2 $0 1 ;get the major version number (first x from x.x)
StrCmp $2 "1" update2 going
update1:
MessageBox MB_ICONQUESTION|MB_YESNO|MB_DEFBUTTON1 ".NET runtime library is not installed. Installer will stop to help you to install .NET 2.0 runtime library. After .NET 2.0 installing, please run installer again to finish installation. Do you want to install .NET 2.0 runtime library?" IDYES install IDNO exit
update2:
MessageBox MB_ICONQUESTION|MB_YESNO|MB_DEFBUTTON1 ".NET runtime library v2.0 or newer is required. You have v$0 installed. Installer will stop to help you to update it to .NET 2.0 runtime library. After .NET 2.0 installing, please run installer again to finish installation. Do you want to install .NET 2.0 runtime library?" IDYES install IDNO exit
install:
Call InstallDotNet
goto going
exit:
Quit
going:
FunctionEnd

;以上方法来自NSIS自带帮助

; Get the current .Net runtime liberary version
Function GetDotNETVersion
Push $0
Push $1
System::Call "mscoree::GetCORVersion(w .r0, i ${NSIS_MAX_STRLEN}, *i) i .r1 ?u"
StrCmp $1 "error" 0 +2
StrCpy $0 "not found"
Pop $1
Exch $0
FunctionEnd