Class: Podgraph::Posterous

Inherits:
Object
  • Object
show all
Defined in:
lib/podgraph/posterous.rb

Overview

Reads XHTML file, analyses it, finds images, checks if they can be inlined, generates multipart/relative or multipart/mixed MIME mail.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(trestle, filename, to, from, mode) ⇒ Posterous

Analyses filename. It must be a XHTML file. to, from are email. mode is 1 of ‘related’ or ‘mixed’ string.



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# File 'lib/podgraph/posterous.rb', line 24

def initialize(trestle, filename, to, from, mode)
  @o = Hash.new()
  @o[:user_agent] = Podgraph::Meta::NAME + ?/ + Podgraph::Meta::VERSION
  @o[:subject] = ''
  @o[:body] = []
  @o[:attachment] = []
  @o[:a_marks] = {}
  @o[:mode] = mode
  @o[:to] = to
  @o[:from] = from

  @trestle = trestle

  fp = (filename == STDIN ? STDIN : File.new(filename))
  begin
    make(fp)
  rescue
    raise $!
  ensure
    fp.close unless fp == STDIN
  end
end

Instance Attribute Details

#o ⇒ Object

some options for mail generator; change with care



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# File 'lib/podgraph/posterous.rb', line 16

def o
  @o
end

#trestle ⇒ Object

a Trestle object



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# File 'lib/podgraph/posterous.rb', line 19

def trestle
  @trestle
end

Instance Method Details

#dump(e = '') ⇒ Object

Print Mail object to stdout. e is an optional encoding.



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# File 'lib/podgraph/posterous.rb', line 157

def dump(e = '')
  puts (e == '' ? generate().to_s : generate().to_s.encode(e))
end

#generate ⇒ Object

Returns ready for delivery Mail object.



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# File 'lib/podgraph/posterous.rb', line 100

def generate()
  m = Mail.new()
  m.from(@o[:from])
  m.to(@o[:to])
  m.transport_encoding = Mail::Encodings.get_encoding('8bit')
#      m.content_transfer_encoding('8bit')
  m.subject(@o[:subject])
  m.headers({'User-Agent' => @o[:user_agent]})

  @trestle.veputs(2, "Body lines=#{@o[:body].size}, bytes=#{@o[:body].to_s.bytesize}")
  if @o[:attachment].size == 0
    m.content_disposition('inline')
    m.content_type('text/html; charset="UTF-8"')
    m.body(@o[:body])
  else
    if @o[:mode] == 'related'
      m.content_type('Multipart/Related')
    end
    m.html_part = Mail::Part.new {
      content_type('text/html; charset=UTF-8')
    }
    m.html_part.body = @o[:body]
    m.html_part.content_disposition('inline') if @o[:mode] == 'mixed'
    
    begin
      @o[:attachment].each { |i| m.add_file(i) }
    rescue
      raise("cannot attach: #{$!}")
    end

    if @o[:mode] == 'related'
      if (fqdn = Socket.gethostname() ) == ''
        raise 'hostname is not set!'
      end
      cid = {}
      m.parts[1..-1].each { |i|
        i.content_disposition('inline')
        cid[i.filename] = i.content_id("<#{Mail.random_tag}@#{fqdn}.NO_mail>")
      }

      @o[:a_marks].each { |k, v|
        if cid.key?(k)
          @trestle.veputs(2, "mark #{k} = #{v}; -> to #{cid[k]}")
          # replace marks with corresponding content-id
          m.html_part.body.raw_source.sub!(v, "cid:#{cid[k][1..-1]}")
        else
          raise("orphan key in cid: #{k}")
        end
      }
    end
  end # a.size
  
  return m
end