B4X Requires Chilkat v11.0.0+

Unzip an AES Encrypted Text File directly into a String Variable

See more Zip Examples

A common need is to unzip from an AES encrypted Zip archive directly into a string variable, such that the unencrypted file never resides on disk, even temporarily. This example shows how to do it. B4X

Dim success As Boolean = False

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim zip As ChilkatZip
zip.Initialize("zip")

'  This example opens a WinZip-compatible AES encrypted
'  .zip that contains a single file: hamlet.xml.

'  It decrypts and unzips hamlet.xml directly into a string
'  variable.
zip.SetPassword("secret")
success = zip.OpenZip("qa_data/hamlet.zip")
If success = False Then
    Log(zip.LastErrorText)
    Return
End If


Dim entry As ChilkatZipEntry
entry.Initialize("entry")
success = zip.EntryOf("hamlet.xml", entry)
If success = False Then
    Log(zip.LastErrorText)
    Return
End If


'  lineEndingBehavior:
'  0 = leave unchanged.
'  1 = convert all to bare LF's
'  2 = convert all to CRLF's
Dim lineEndingBehavior As Int = 0
Dim srcCharset As String = "utf-8"
Dim xmlText As String = entry.UnzipToString(lineEndingBehavior, srcCharset)
Log(xmlText)