(Ruby) 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.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

success = false

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

zip = Chilkat::CkZip.new()

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

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

# Locate the file within the Zip to be unzipped into a string variable:
entry = Chilkat::CkZipEntry.new()
success = zip.EntryMatching("*.csv",entry)
if (success == false)
    print zip.lastErrorText() + "\n";
    exit
end

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

strCsv = entry.unzipToString(lineEndingBehavior,srcCharset)
print strCsv + "\n";