Topic: Safety of code
Yesterday I saw a post about Private, and now I have got the code below.
If you don't protect the code, you can reflect all the private variables of some classes through reflection.
In the program run, all variable values can also be reflected.
I don't know what to feel. How to solve this problem simple and effectively?
Public Class Form1
Inherits System.Windows.Forms.form
Code generated by the Windows Form Designer
Private sub button1_click (byvale as system.object, byval e as system.eventargs) Handles Button1.click
Dim Mlogin As New LoginClass
Mlogin.isauth ("")
Dim myfieldInfo () as system.reflection.fieldInfo
Dim Pass as string
DIM mytype as type = mlogin.gettype
myfieldinfo = mytype.getfields (System.Reflection.BindingFlags.nonpublic OR _
System.Reflection.BindingFlags.instance or system.reflection.bindingflags.public)
DIM I as integer
For i = 0 to myfieldinfo.length - 1
IF myfieldinfo (i) .fieldType is gettype (string) THEN
Pass = myfieldInfo (i) .GetValue (mlogin) .tostring
mlogin.isauth (pass)
END IF
Next i
End Sub
END CLASS
Public Class loginclass
Private mpass string = "a # $ %% #% # 4545390rkdflssjrl% # (933234"
Public Function isauth (byval pass as string) as boolean
Try
IF pass = mpass life
Return True
Else
Return False
END IF
Finally
Mainlogin (isausth)
END TRY
END FUNCTION
Private Sub Mainlogin (byval isauth as boolean)
Dim mmain as new mainclass
Mmain.Pleaselogin (isaust)
End Sub
END CLASS
Public class mainclass
Public Sub Pleaselogin (Byval Isauth as Boolean)
IF isauth then
Msgbox ("Welcome Welcome, Warm Welcome")
Else
Msgbox ("Oh, please come again")
END IF
End Sub
END CLASS
