112 lines
2.8 KiB
Ruby
112 lines
2.8 KiB
Ruby
class EmailParser
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attr_reader :sender, :recipient, :email_text, :email
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def initialize(sender, recipient, email_text)
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@sender = sender
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@recipient = recipient
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@email_text = email_text.forcibly_convert_to_utf8
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@email = nil
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begin
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# the mail gem stupidly spams STDERR while parsing e-mail, so silence
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# that stream to avoid anything getting back to postfix
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Utils.silence_stream(STDERR) do
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@email = Mail.read_from_string(email_text)
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end
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rescue
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end
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@sending_user = nil
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@parent = nil
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@body = nil
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end
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def user_token
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@recipient.gsub(/^#{Rails.application.shortname}-/, "").gsub(/@.*/, "")
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end
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def been_here?
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!!@email_text.match(/^X-BeenThere: #{Rails.application.shortname}-/i)
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end
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def sending_user
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return @sending_user if @sending_user
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if (user = User.where("mailing_list_mode > 0 AND mailing_list_token = ?",
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user_token).first) && user.is_active?
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@sending_user = user
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return user
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end
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end
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def parent
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return @parent if @parent
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irt = self.email[:in_reply_to].to_s.gsub(/[^A-Za-z0-9@\.]/, "")
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if m = irt.match(/^comment\.([^\.]+)\.\d+@/)
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@parent = Comment.where(:short_id => m[1]).first
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elsif m = irt.match(/^story\.([^\.]+)\.\d+@/)
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@parent = Story.where(:short_id => m[1]).first
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end
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@parent
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end
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def body
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return @body if @body
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@possible_charset = nil
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if self.email.multipart?
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# parts[0] - multipart/alternative
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# parts[0].parts[0] - text/plain
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# parts[0].parts[1] - text/html
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if (p = self.email.parts.first.parts.select{|p|
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p.content_type.match(/text\/plain/i) }).any?
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@body = p.first.body.to_s
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begin
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@possible_charset = p.first.content_type_parameters["charset"]
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rescue
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end
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# parts[0] - text/plain
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elsif (p = self.email.parts.select{|p|
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p.content_type.match(/text\/plain/i) }).any?
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@body = p.first.body.to_s
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begin
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@possible_charset = p.first.content_type_parameters["charset"]
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rescue
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end
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end
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# simple one-part
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elsif self.email.content_type.to_s.match(/text\/plain/)
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@body = self.email.body.to_s
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begin
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@possible_charset = self.email.content_type_parameters["charset"]
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rescue
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end
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elsif !self.email.content_type.to_s.present?
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# no content-type header, assume it's text/plain
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@body = self.email.body.to_s
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end
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# TODO: use @possible_charset, but did previously forcing the entire
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# email_text to utf8 screw this up already?
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# try to remove sig lines
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@body.gsub!(/^-- \n.+\z/m, "")
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# try to strip out attribution line, followed by an optional blank line,
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# and then lines prefixed with >
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@body.gsub!(/^(On|on|at) .*\n\n?(>.*\n)+/, "")
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@body.strip!
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end
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end
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