root/lib/cyborghood/mail.rb @ bc4894ce
| bc4894ce | Marc Dequenes | require 'cyborghood/base'
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require 'delegate'
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require 'tmail'
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require 'tmail_extra'
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require 'gpgme'
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# This class handles RFC3156 signed messages, validates them, and extract orders properly.
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# Encrypted content are not implemented yet.
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| c427bfc7 | Marc Dequenes | module CyborgHood
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class Mail < Delegator
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def initialize(msg)
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# unquote headers and transform into TMail object
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@mail = TMail::Mail.parse(TMail::Unquoter.unquote_and_convert_to(msg, "UTF-8"))
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end
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def __getobj__
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@mail
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end
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def parse
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sig_check = verify_pgp_signature()
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if sig_check.status == 0
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logger.info "Mail content was properly signed by key #{sig_check.fingerprint}"
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user = Person.find_by_fingerprint(sig_check.fingerprint)
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if user.nil?
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logger.info "Mail is from an unknown person"
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else
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logger.info "Mail is from user #{user.uid} (#{user.cn})"
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signed_content = pgp_signed_part()
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if signed_content.multipart?
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if signed_content.parts[0].content_type == "text/plain"
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command_txt = signed_content.parts[0].body
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refs = signed_content.parts.collect{|p| p.dup }
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end
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else
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command_txt = signed_content.body if signed_content.content_type == "text/plain"
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refs = []
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end
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if command_txt
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commands = []
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command_txt.each_line do |line|
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line.chomp!
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sline = line.strip
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# skip empty lines and comments
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next if sline == "" or sline[0, 1] == "#"
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# stop processing when detecting message signature
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break if line == "-- "
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commands << sline
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end
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return {:user => user, :commands => commands, :refs => refs}.to_ostruct
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else
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logger.info "Mail does not contain a proper MIME part for commands"
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end
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end
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else
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logger.info "Mail content tampered or badly signed: " + sig_check.to_s
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end
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nil
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end
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end
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end
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