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require 'tmpdir'
class TNEF
# Extracts all attachments from the given TNEF file as a TMail::Mail object
# The TNEF file also contains the message body, but in general this is the
# same as the message body in the message proper.
def self.as_tmail(content)
main = TMail::Mail.new
main.set_content_type 'multipart', 'mixed', { 'boundary' => TMail.new_boundary }
Dir.mktmpdir do |dir|
IO.popen("#{`which tnef`.chomp} -K -C #{dir}", "w") do |f|
f.write(content)
f.close
if $?.signaled?
raise IOError, "tnef exited with signal #{$?.termsig}"
end
if $?.exited? && $?.exitstatus != 0
raise IOError, "tnef exited with status #{$?.exitstatus}"
end
end
found = 0
Dir.new(dir).sort.each do |file| # sort for deterministic behaviour
if file != "." && file != ".."
file_content = File.open("#{dir}/#{file}", "r").read
attachment = TMail::Mail.new
attachment['content-location'] = file
attachment.body = file_content
main.parts << attachment
found += 1
end
end
if found == 0
raise IOError, "tnef produced no attachments"
end
end
main
end
end
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