145 lines
3.5 KiB
Ruby
145 lines
3.5 KiB
Ruby
# -*- coding: binary -*-
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module Rex
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module MIME
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class Message
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require 'rex/mime/header'
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require 'rex/mime/part'
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require 'rex/mime/encoding'
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require 'rex/text'
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include Rex::MIME::Encoding
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attr_accessor :header, :parts, :bound, :content
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def initialize(data=nil)
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self.header = Rex::MIME::Header.new
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self.parts = []
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self.bound = "_Part_#{rand(1024)}_#{rand(0xffffffff)}_#{rand(0xffffffff)}"
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self.content = ''
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if data
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head,body = data.split(/\r?\n\r?\n/, 2)
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self.header.parse(head)
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ctype = self.header.find('Content-Type')
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if ctype && ctype[1] && ctype[1] =~ /multipart\/mixed;\s*boundary="?([A-Za-z0-9'\(\)\+\_,\-\.\/:=\?^\s]+)"?/
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self.bound = $1
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chunks = body.to_s.split(/--#{self.bound}(--)?\r?\n/)
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self.content = chunks.shift.to_s.gsub(/\s+$/, '')
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self.content << "\r\n" unless self.content.empty?
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chunks.each do |chunk|
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break if chunk == "--"
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head,body = chunk.split(/\r?\n\r?\n/, 2)
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part = Rex::MIME::Part.new
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part.header.parse(head)
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part.content = body.gsub(/\s+$/, '')
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self.parts << part
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end
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else
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self.content = body.to_s.gsub(/\s+$/, '') + "\r\n"
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end
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end
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end
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def to
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(self.header.find('To') || [nil, nil])[1]
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end
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def to=(val)
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self.header.set("To", val)
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end
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def from=(val)
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self.header.set("From", val)
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end
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def from
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(self.header.find('From') || [nil, nil])[1]
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end
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def subject=(val)
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self.header.set("Subject", val)
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end
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def subject
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(self.header.find('Subject') || [nil, nil])[1]
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end
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def mime_defaults
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self.header.set("MIME-Version", "1.0")
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self.header.set("Content-Type", "multipart/mixed; boundary=\"#{self.bound}\"")
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self.header.set("Subject", '') # placeholder
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self.header.set("Date", Time.now.strftime("%a,%e %b %Y %H:%M:%S %z"))
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self.header.set("Message-ID",
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"<"+
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Rex::Text.rand_text_alphanumeric(rand(20)+40)+
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"@"+
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Rex::Text.rand_text_alpha(rand(20)+3)+
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">"
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)
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self.header.set("From", '') # placeholder
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self.header.set("To", '') # placeholder
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end
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def add_part(data='', content_type='text/plain', transfer_encoding="8bit", content_disposition=nil)
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part = Rex::MIME::Part.new
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if content_disposition
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part.header.set("Content-Disposition", content_disposition)
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end
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part.header.set("Content-Type", content_type) if content_type
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if transfer_encoding
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part.header.set("Content-Transfer-Encoding", transfer_encoding)
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end
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part.content = data
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self.parts << part
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part
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end
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def add_part_attachment(data, name)
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self.add_part(
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Rex::Text.encode_base64(data, "\r\n"),
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"application/octet-stream; name=\"#{name}\"",
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"base64",
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"attachment; filename=\"#{name}\""
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)
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end
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def add_part_inline_attachment(data, name)
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self.add_part(
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Rex::Text.encode_base64(data, "\r\n"),
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"application/octet-stream; name=\"#{name}\"",
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"base64",
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"inline; filename=\"#{name}\""
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)
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end
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def to_s
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header_string = self.header.to_s
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msg = header_string.empty? ? '' : force_crlf(self.header.to_s + "\r\n")
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msg << force_crlf(self.content + "\r\n") unless self.content.to_s.strip.empty?
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self.parts.each do |part|
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msg << force_crlf("--" + self.bound + "\r\n")
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msg << part.to_s
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end
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msg << force_crlf("--" + self.bound + "--\r\n") if self.parts.length > 0
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msg
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end
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end
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end
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end
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