(PureBasic) Unzip Encrypted Text into a String Variable

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkZip.pb"
IncludeFile "CkZipEntry.pb"

Procedure ChilkatExample()

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

    zip.i = CkZip::ckCreate()
    If zip.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Set the password required for decrypting.
    CkZip::setCkDecryptPassword(zip, "myPassword")

    success.i = CkZip::ckOpenZip(zip,"encrypted.zip")
    If success <> 1
        Debug CkZip::ckLastErrorText(zip)
        CkZip::ckDispose(zip)
        ProcedureReturn
    EndIf

    ; Locate the file within the Zip to be unzipped into a string variable:
    entry.i = CkZip::ckFirstMatchingEntry(zip,"*.csv")
    If CkZip::ckLastMethodSuccess(zip) = 0
        Debug "No matching entry found."
        CkZip::ckDispose(zip)
        ProcedureReturn
    EndIf

    ; lineEndingBehavior:
    ; 0 = leave unchanged.
    ; 1 = convert all to bare LF's
    ; 2 = convert all to CRLF's
    lineEndingBehavior.i = 0
    srcCharset.s = "utf-8"

    strCsv.s = CkZipEntry::ckUnzipToString(entry,lineEndingBehavior,srcCharset)
    Debug strCsv
    CkZipEntry::ckDispose(entry)



    CkZip::ckDispose(zip)


    ProcedureReturn
EndProcedure