Classic ASP

Unzip an AES Encrypted Text File directly into a String Variable

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.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set zip = Server.CreateObject("Chilkat.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 = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( zip.LastErrorText) & "</pre>"
    Response.End
End If

set entry = Server.CreateObject("Chilkat.ZipEntry")
success = zip.EntryOf("hamlet.xml",entry)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( zip.LastErrorText) & "</pre>"
    Response.End
End If

' lineEndingBehavior:
' 0 = leave unchanged.
' 1 = convert all to bare LF's
' 2 = convert all to CRLF's
lineEndingBehavior = 0
srcCharset = "utf-8"
xmlText = entry.UnzipToString(lineEndingBehavior,srcCharset)
Response.Write "<pre>" & Server.HTMLEncode( xmlText) & "</pre>"

%>
</body>
</html>