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rewriting most of the asn1 init code in ruby
to have as much of the lib in ruby as possible
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| # frozen_string_literal: true | ||
| #-- | ||
| # | ||
| # = Ruby-space definitions that completes C-space funcs for BN | ||
| # | ||
| # = Licence | ||
| # This program is licensed under the same licence as Ruby. | ||
| # (See the file 'LICENCE'.) | ||
| #++ | ||
|
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| module OpenSSL | ||
| module ASN1 | ||
| class ASN1Data | ||
| attr_accessor :value, :tag, :tag_class | ||
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| attr_reader :indefinite_length | ||
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| def initialize(value, tag, tag_class) | ||
| raise ASN1Error, "invalid tag class" unless tag_class.is_a?(Symbol) | ||
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| @tag = tag | ||
| @value = value | ||
| @tag_class = tag_class | ||
| @indefinite_length = false | ||
| end | ||
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| def indefinite_length=(val) | ||
| @indefinite_length = val | ||
| end | ||
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| alias infinite_length indefinite_length | ||
| alias infinite_length= indefinite_length= | ||
| end | ||
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| class Primitive < ASN1Data | ||
| attr_accessor :tagging | ||
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| undef_method :indefinite_length= | ||
| undef_method :infinite_length= | ||
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| def initialize(value, tag = nil, tagging = nil, tag_class = nil) | ||
| tag ||= ASN1.take_default_tag(self.class) | ||
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| raise ASN1Error, "must specify tag number" unless tag | ||
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| if tagging | ||
| raise ASN1Error, "invalid tagging method" unless tagging.is_a?(Symbol) | ||
| end | ||
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| tag_class ||= tagging ? :CONTEXT_SPECIFIC : :UNIVERSAL | ||
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| raise ASN1Error, "invalid tag class" unless tag_class.is_a?(Symbol) | ||
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| @tagging = tagging | ||
| super(value ,tag, tag_class) | ||
| end | ||
| end | ||
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| class Constructive < ASN1Data | ||
| include Enumerable | ||
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| attr_accessor :tagging | ||
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| def initialize(value, tag = nil, tagging = nil, tag_class = nil) | ||
| tag ||= ASN1.take_default_tag(self.class) | ||
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| raise ASN1Error, "must specify tag number" unless tag | ||
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| if tagging | ||
| raise ASN1Error, "invalid tagging method" unless tagging.is_a?(Symbol) | ||
| end | ||
|
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| tag_class ||= tagging ? :CONTEXT_SPECIFIC : :UNIVERSAL | ||
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| raise ASN1Error, "invalid tag class" unless tag_class.is_a?(Symbol) | ||
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| @tagging = tagging | ||
| super(value ,tag, tag_class) | ||
| end | ||
|
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| def each(&blk) | ||
| @value.each(&blk) | ||
| end | ||
| end | ||
|
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| class Boolean < Primitive ; end | ||
| class Integer < Primitive ; end | ||
| class Enumerated < Primitive ; end | ||
|
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| class BitString < Primitive | ||
| attr_accessor :unused_bits | ||
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| def initialize(*) | ||
| super | ||
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| @unused_bits = 0 | ||
| end | ||
| end | ||
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| class EndOfContent < ASN1Data | ||
| def initialize | ||
| super("", 0, :UNIVERSAL) | ||
| end | ||
| end | ||
|
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| # private | ||
| def self.take_default_tag(klass) | ||
| tag = CLASS_TAG_MAP[klass] | ||
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| return tag if tag | ||
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| sklass = klass.superclass | ||
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| return unless sklass | ||
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| take_default_tag(sklass) | ||
| end | ||
| end | ||
| end |