NSIS 使用正则表达式进行模式匹配。密码验证

Question

我一直在尝试将字符串与密码验证模式相匹配。例如密码必须包含 upper/lower 和特殊字符。

我已经使用 StrCSpn（修改为区分大小写）函数来扫描字符串中的字符，但我必须有一个单独的列表来存放特殊字符和 upper/lower 大小写字母。所以代码有点笨重 https://nsis.sourceforge.io/StrCSpn,_StrCSpnReverse:_Scan_strings_for_characters

有没有像这里这样在 NSIS 中使用正则表达式的方法

Answer 1

您可以使用 NSISpcre plug-in:

Function PasswordMatchesPolicy
Push [=10=]
Push 
Push 
Push 0
Push 0
Exch 5
Push `^(?:(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).*)$$` #whosebug.com/questions/43127814/regex-for-at-least-1-number-1-lower-case-and-1-upper-case-letter
NSISpcre::REMatches 
Pop [=10=]
${If} [=10=] == true
    Pop [=10=]
    ${For}  1 [=10=]
        Pop 
    ${Next}
    Push 1
${Else}
    Push ""
${EndIf}
Exch 3
Pop 
Pop 
Pop [=10=]
FunctionEnd
    
!include LogicLib.nsh
ShowInstDetails show
Section

!macro Test str
Push "${str}"
Call PasswordMatchesPolicy
Pop [=10=]
${If} [=10=] <> 0
    StrCpy [=10=] PASS
${Else}
    StrCpy [=10=] FAIL
${EndIf}
DetailPrint "[=10=]:${str}"
!macroend

!insertmacro Test "foo"
!insertmacro Test "Foo"
!insertmacro Test "Foo1"
!insertmacro Test "Foo#"
!insertmacro Test "Foo1#"
SectionEnd

或者如果您只关心 ASCII：

Function PasswordMatchesPolicy
!define /IfNDef C1_UPPER 0x0001
!define /IfNDef C1_LOWER 0x0002
!define /IfNDef C1_DIGIT 0x0004
!define /IfNDef C1_DEFINED 0x0200
System::Store S
System::Call 'KERNEL32::lstrcpyA(@r1,ms)'
StrCpy  ""
StrCpy  0
loop:
    System::Call '*(&i,&i1.r4)'
    ${If}  <> 0
        ${If}  >= 65
        ${AndIf}  <= 90
            IntOp   | ${C1_UPPER}
        ${ElseIf}  >= 97
        ${AndIf}  <= 122
            IntOp   | ${C1_LOWER}
        ${ElseIf}  >= 48
        ${AndIf}  <= 57
            IntOp   | ${C1_DIGIT}
        ${Else}
            IntOp   | ${C1_DEFINED} ; Just mark it as "something"
        ${EndIf}
        IntOp   + 1
        Goto loop
    ${EndIf}

IntOp   & 3
${If}  = 3 ; C1_UPPER and C1_LOWER
${AndIf}  >= 4 ; Digit or symbol
    Push 1
${Else}
    Push 0
${EndIf}
System::Store L
FunctionEnd

NSIS 使用正则表达式进行模式匹配。密码验证

NSIS using a regEx for pattern matching. Password validation

regex

nsis