Save an Email Attachment using a Specific Filename

Demonstrates how to save an email attachment using a specific filename, regardless of the filename in the email.

Download Chilkat Ruby Library

require 'chilkat'

#  Create a MailMan or Imap object first for the purpose
#  of unlocking the component. (Only one is necessary)
mailman = Chilkat::CkMailMan.new()
mailman.UnlockComponent("anything for 30-day trial")
imap = Chilkat::CkImap.new()
imap.UnlockComponent("anything for 30-day trial")

email = Chilkat::CkEmail.new()

#  Load an email object containing attachments.
#  This .eml can be downloaded from:
#  http://www.example-code.com/testData/HtmlEmail.eml

success = email.LoadEml("HtmlEmail.eml")
if (success != true)
    print email.lastErrorText() + "\n"
    exit
end

#  List the attachment filenames:
#  This email has two attachments: logo.jpg and faxCover.doc

for i in 0 .. email.get_NumAttachments() - 1
    print email.getAttachmentFilename(i) + "\n";
end

#  Let's say we want to save the 1st attachment as "pic.jpg",
#  and the 2nd attachment as "cover.doc".
#  Call SetAttachmentFilename for both:
email.SetAttachmentFilename(0,"pic.jpg")
email.SetAttachmentFilename(1,"cover.doc")

#  The SaveAttachedFile method allows you to specify the directory
#  where the attachment is saved.  To save to the current working
#  directory, pass a "." for the directory path.  This code
#  saves each attachment to the current working directory:
email.SaveAttachedFile(0,".")
email.SaveAttachedFile(1,".")

#  Alternatively, we could save all the attachments in a single
#  call.  The argument to SaveAllAttachments is the directory
#  path.  In this case, the filenames set by SetAttachmentFilename
#  are used:
email.SaveAllAttachments("myAttachments")

print "Finished!" + "\n"