Android Question FTP Server error "Invalid Path" (my workaround)

[Rubens Jr.]

Hi !
Sorry my bad english ..

I Had this error "Invalid Path" using the FTP Server example. Only List comand works.
Looking at source file FTPClient.bas in FTPServer.bxlib (Version 1.10) routine NormalizePath it compares
the mServer.Basedir with getCanonicalPath with the mServer.Basedir, and if it is diferent return this error.
So ... I set my Basedir with CanonicalPath

    mServer.BaseDir = File.DirInternal
    Dim jo As JavaObject
    jo.InitializeNewInstance("java.io.File", Array(File.Combine(File.DirInternal, "")))
    Dim CanonicalPath As String = jo.RunMethod("getCanonicalPath", Null)
    mServer.BaseDir = CanonicalPath

    Log ("DirInternal = " & File.DirInternal)
    Log ("CanonicalPath = " & CanonicalPath)

the log shows :

DirInternal = /data/user/0/scm.painel/files
CanonicalPath = /data/data/scm.painel/files

I guess that this have to do whih Linux synlink
After this "solution" the FTP Server works ok !
The question is :
Is this a real solution ?

Thanks

Rubens Jr.

 

[Erel]

The purpose of that check is to prevent the client from accessing a different folder using relative paths. Not a real security issue when you are setting File.DirInternal as the app will not be able to access external folders any way.