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.

Downloads for Windows/Linux and Install Instructions

require 'rubygems'
require 'chilkat'

zip = Chilkat::CkZip.new()

#  Any string unlocks the component for the 1st 30-days.
success = zip.UnlockComponent("Anything for 30-day trial")
if (success != true)
    print zip.lastErrorText() + "\n"
    exit
end

#  Set the password required for decrypting.
zip.put_DecryptPassword("myPassword")

success = zip.OpenZip("encrypted.zip")
if (success != true)
    print zip.lastErrorText() + "\n"
    exit
end

#  Locate the file within the Zip to be unzipped into a string variable:

# entry is a CkZipEntry
entry = zip.FirstMatchingEntry("*.csv")
if (!(entry == nil ))

    #  There are a few different InflateToString methods.
    #  InflateToString allows you to control line-endings LF-only vs. CRLF
    #  InflateToString2 returns the line-endings unmodified.
    #  Both InflateToString and InflateToString2 assume the
    #  data consists of ANSI characters.
    #  The InflateToString3 method allows for text stored in different
    #  character encodings to be returned as a string

    #  This example uses InflateToString2 -- line endings are
    #  unmodified and the text is simple ANSI...

    strCsv = entry.inflateToString2()
    print strCsv + "\n";

else
    print "No matching entry found!" + "\n";
end