Ruby

Fetch an IMAP Message's MIME into a BinData

Demonstrates the Chilkat Imap.FetchSingleBd method, which downloads one message's MIME bytes into a BinData object. If the second argument (bUid) is true, the first argument is a UID; otherwise it is a sequence number. This example downloads message 1's MIME into a BinData and prints the byte count.

Background: This is the binary counterpart to FetchSingleAsMime (which returns a string). A BinData holds raw bytes, so it preserves the message exactly — the right choice when you plan to write the MIME straight to a file, hash it, or hand it to an API expecting a byte buffer, with no charset conversion that could alter binary content.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the Imap.FetchSingleBd method, which downloads one message's MIME bytes into a
#  BinData object.  If the 2nd argument (bUid) is true, the 1st argument is a UID; otherwise
#  it is a sequence number.

imap = Chilkat::CkImap.new()

imap.put_Ssl(true)
imap.put_Port(993)

success = imap.Connect("imap.example.com")
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

success = imap.Login("user@example.com","myPassword")
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

success = imap.SelectMailbox("Inbox")
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

#  Download message sequence number 1's MIME bytes into a BinData.  bUid = false.
bdMime = Chilkat::CkBinData.new()
success = imap.FetchSingleBd(1,false,bdMime)
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

print "MIME size (bytes) = " + bdMime.get_NumBytes().to_s() + "\n";

success = imap.Disconnect()
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end