Module: Cabbage::EmailParser

Included in:
Email
Defined in:
lib/cabbage/email/parser.rb

Class Method Summary collapse

Class Method Details

.break_by_boundary(source, boundary) ⇒ Object 



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# File 'lib/cabbage/email/parser.rb', line 37

def EmailParser.break_by_boundary(source, boundary)
  source.split("--" + boundary).keep_if {|n| n != "--" && n != ""}.each {|n| n.strip!}
end

.extract_value(target_string, key) ⇒ Object 



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# File 'lib/cabbage/email/parser.rb', line 41

def EmailParser.extract_value(target_string, key)
  target_string.match(/#{key}=["']?([^;\s"']+)/i)[1]
end

.parse_email(source) ⇒ Object 



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# File 'lib/cabbage/email/parser.rb', line 7

def EmailParser.parse_email(source)
  return {} if source.empty?
  results = { :header => {}, :original_keys => {}, :body => [] }
  divided = source.strip.match(/\A\s*(.+?)(?:\r\n\r\n|\n\n)(.+)/m)
  raw_header = divided[1]
  raw_body = divided[2]
  raw_header.gsub(/\n\s+/, " ").split("\n").each do |this_line|
    this_pair = this_line.split(/:\s*/, 2)
    this_key_string = this_pair[0].strip
    this_key_symbol = this_key_string.down_under.intern
    this_value = this_pair[1]
    if results[:header].has_key?(this_key_symbol)
      unless results[:header][this_key_symbol].class == Array
        results[:header][this_key_symbol] = [results[:header][this_key_symbol]]
      end
      results[:header][this_key_symbol] << this_value
    else
      results[:header][this_key_symbol] = this_value.strip
      results[:original_keys][this_key_symbol] = this_key_string
    end
  end
  if results[:header][:content_type].start_with?("multipart")
    boundary = EmailParser.extract_value(results[:header][:content_type], "boundary")
    EmailParser.break_by_boundary(raw_body, boundary).each {|n| results[:body] << EmailParser.parse_email(n)}
  else
    results[:body] = raw_body
  end
  results
end