summaryrefslogtreecommitdiff
path: root/lib/rubygems/vendor/uri/lib/uri/rfc3986_parser.rb
blob: 728bb556748f31b9291f5c8788f251d229bfa65b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
# frozen_string_literal: true
module Gem::URI
  class RFC3986_Parser # :nodoc:
    # Gem::URI defined in RFC3986
    HOST = %r[
      (?<IP-literal>\[(?:
          (?<IPv6address>
            (?:\h{1,4}:){6}
            (?<ls32>\h{1,4}:\h{1,4}
            | (?<IPv4address>(?<dec-octet>[1-9]\d|1\d{2}|2[0-4]\d|25[0-5]|\d)
                \.\g<dec-octet>\.\g<dec-octet>\.\g<dec-octet>)
            )
          | ::(?:\h{1,4}:){5}\g<ls32>
          | \h{1,4}?::(?:\h{1,4}:){4}\g<ls32>
          | (?:(?:\h{1,4}:)?\h{1,4})?::(?:\h{1,4}:){3}\g<ls32>
          | (?:(?:\h{1,4}:){,2}\h{1,4})?::(?:\h{1,4}:){2}\g<ls32>
          | (?:(?:\h{1,4}:){,3}\h{1,4})?::\h{1,4}:\g<ls32>
          | (?:(?:\h{1,4}:){,4}\h{1,4})?::\g<ls32>
          | (?:(?:\h{1,4}:){,5}\h{1,4})?::\h{1,4}
          | (?:(?:\h{1,4}:){,6}\h{1,4})?::
          )
        | (?<IPvFuture>v\h++\.[!$&-.0-9:;=A-Z_a-z~]++)
        )\])
    | \g<IPv4address>
    | (?<reg-name>(?:%\h\h|[!$&-.0-9;=A-Z_a-z~])*+)
    ]x

    USERINFO = /(?:%\h\h|[!$&-.0-9:;=A-Z_a-z~])*+/

    SCHEME = %r[[A-Za-z][+\-.0-9A-Za-z]*+].source
    SEG = %r[(?:%\h\h|[!$&-.0-9:;=@A-Z_a-z~/])].source
    SEG_NC = %r[(?:%\h\h|[!$&-.0-9;=@A-Z_a-z~])].source
    FRAGMENT = %r[(?:%\h\h|[!$&-.0-9:;=@A-Z_a-z~/?])*+].source

    RFC3986_URI = %r[\A
    (?<seg>#{SEG}){0}
    (?<Gem::URI>
      (?<scheme>#{SCHEME}):
      (?<hier-part>//
        (?<authority>
          (?:(?<userinfo>#{USERINFO.source})@)?
          (?<host>#{HOST.source.delete(" \n")})
          (?::(?<port>\d*+))?
        )
        (?<path-abempty>(?:/\g<seg>*+)?)
      | (?<path-absolute>/((?!/)\g<seg>++)?)
      | (?<path-rootless>(?!/)\g<seg>++)
      | (?<path-empty>)
      )
      (?:\?(?<query>[^\#]*+))?
      (?:\#(?<fragment>#{FRAGMENT}))?
    )\z]x

    RFC3986_relative_ref = %r[\A
    (?<seg>#{SEG}){0}
    (?<relative-ref>
      (?<relative-part>//
        (?<authority>
          (?:(?<userinfo>#{USERINFO.source})@)?
          (?<host>#{HOST.source.delete(" \n")}(?<!/))?
          (?::(?<port>\d*+))?
        )
        (?<path-abempty>(?:/\g<seg>*+)?)
      | (?<path-absolute>/\g<seg>*+)
      | (?<path-noscheme>#{SEG_NC}++(?:/\g<seg>*+)?)
      | (?<path-empty>)
      )
      (?:\?(?<query>[^#]*+))?
      (?:\#(?<fragment>#{FRAGMENT}))?
    )\z]x
    attr_reader :regexp

    def initialize
      @regexp = default_regexp.each_value(&:freeze).freeze
    end

    def split(uri) #:nodoc:
      begin
        uri = uri.to_str
      rescue NoMethodError
        raise InvalidURIError, "bad Gem::URI(is not Gem::URI?): #{uri.inspect}"
      end
      uri.ascii_only? or
        raise InvalidURIError, "Gem::URI must be ascii only #{uri.dump}"
      if m = RFC3986_URI.match(uri)
        query = m["query"]
        scheme = m["scheme"]
        opaque = m["path-rootless"]
        if opaque
          opaque << "?#{query}" if query
          [ scheme,
            nil, # userinfo
            nil, # host
            nil, # port
            nil, # registry
            nil, # path
            opaque,
            nil, # query
            m["fragment"]
          ]
        else # normal
          [ scheme,
            m["userinfo"],
            m["host"],
            m["port"],
            nil, # registry
            (m["path-abempty"] ||
             m["path-absolute"] ||
             m["path-empty"]),
            nil, # opaque
            query,
            m["fragment"]
          ]
        end
      elsif m = RFC3986_relative_ref.match(uri)
        [ nil, # scheme
          m["userinfo"],
          m["host"],
          m["port"],
          nil, # registry,
          (m["path-abempty"] ||
           m["path-absolute"] ||
           m["path-noscheme"] ||
           m["path-empty"]),
          nil, # opaque
          m["query"],
          m["fragment"]
        ]
      else
        raise InvalidURIError, "bad Gem::URI(is not Gem::URI?): #{uri.inspect}"
      end
    end

    def parse(uri) # :nodoc:
      Gem::URI.for(*self.split(uri), self)
    end


    def join(*uris) # :nodoc:
      uris[0] = convert_to_uri(uris[0])
      uris.inject :merge
    end

    @@to_s = Kernel.instance_method(:to_s)
    if @@to_s.respond_to?(:bind_call)
      def inspect
        @@to_s.bind_call(self)
      end
    else
      def inspect
        @@to_s.bind(self).call
      end
    end

    private

    def default_regexp # :nodoc:
      {
        SCHEME: %r[\A#{SCHEME}\z]o,
        USERINFO: %r[\A#{USERINFO}\z]o,
        HOST: %r[\A#{HOST}\z]o,
        ABS_PATH: %r[\A/#{SEG}*+\z]o,
        REL_PATH: %r[\A(?!/)#{SEG}++\z]o,
        QUERY: %r[\A(?:%\h\h|[!$&-.0-9:;=@A-Z_a-z~/?])*+\z],
        FRAGMENT: %r[\A#{FRAGMENT}\z]o,
        OPAQUE: %r[\A(?:[^/].*)?\z],
        PORT: /\A[\x09\x0a\x0c\x0d ]*+\d*[\x09\x0a\x0c\x0d ]*\z/,
      }
    end

    def convert_to_uri(uri)
      if uri.is_a?(Gem::URI::Generic)
        uri
      elsif uri = String.try_convert(uri)
        parse(uri)
      else
        raise ArgumentError,
          "bad argument (expected Gem::URI object or Gem::URI string)"
      end
    end

  end # class Parser
end # module Gem::URI