Class: Postpeek::Decoders::QuotedPrintable

Inherits:
Base
  • Object
show all
Defined in:
lib/postpeek/decoders/quoted_printable.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.handles ⇒ Object 



6
7
8
 
# File 'lib/postpeek/decoders/quoted_printable.rb', line 6

def self.handles
  ["quoted-printable"].freeze
end

Instance Method Details

#decode(content) ⇒ Object 



10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
# File 'lib/postpeek/decoders/quoted_printable.rb', line 10

def decode(content)
  # unpack1("M") returns an ASCII-8BIT string; force UTF-8 interpretation
  # before transcoding so multi-byte sequences are preserved.
  decoded = content.unpack1("M").force_encoding("UTF-8")

  if decoded.valid_encoding?
    decoded
  else
    decoded.encode("UTF-8", "binary", invalid: :replace, undef: :replace,
                                      replace: "")
  end
rescue ArgumentError => e
  raise DecodeError.new("quoted-printable", e)
end