Ruby

Get the Decoded MIME Body Bytes (BinData)

Demonstrates the Chilkat Mime.GetBodyBd method, which replaces the contents of a BinData with the decoded body bytes of the current part. The only argument is the BinData. Base64 and quoted-printable are decoded; headers and boundaries are not included.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is how you extract a part's actual content as bytes — the decoded payload of an attachment or an image, ready to hash, re-save, or hand to another API. Because it works in raw bytes it is the correct choice for binary parts, where a text decode would be wrong. Note it replaces the BinData contents rather than appending.

Chilkat Ruby Downloads

Download Chilkat for Ruby

Ruby

require 'chilkat'

success = false

mime = Chilkat::CkMime.new()
success = mime.LoadMimeFile("qa_data/message.eml")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  Replace the contents of a BinData with the decoded body bytes of the current part.  Base64 and
#  quoted-printable are decoded; MIME headers and multipart boundaries are not included.
bd = Chilkat::CkBinData.new()
success = mime.GetBodyBd(bd)
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

print "Decoded body: " + bd.get_NumBytes().to_s() + " bytes." + "\n";