diff options
Diffstat (limited to 'lib/uri/rfc3986_parser.rb')
| -rw-r--r-- | lib/uri/rfc3986_parser.rb | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/lib/uri/rfc3986_parser.rb b/lib/uri/rfc3986_parser.rb new file mode 100644 index 0000000000..0b5f0c4488 --- /dev/null +++ b/lib/uri/rfc3986_parser.rb @@ -0,0 +1,206 @@ +# frozen_string_literal: true +module URI + class RFC3986_Parser # :nodoc: + # 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} + (?<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 URI (is not URI?): #{uri.inspect}" + end + uri.ascii_only? or + raise InvalidURIError, "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 URI (is not URI?): #{uri.inspect}" + end + end + + def parse(uri) # :nodoc: + URI.for(*self.split(uri), self) + end + + def join(*uris) # :nodoc: + uris[0] = convert_to_uri(uris[0]) + uris.inject :merge + end + + # Compatibility for RFC2396 parser + def extract(str, schemes = nil, &block) # :nodoc: + warn "URI::RFC3986_PARSER.extract is obsolete. Use URI::RFC2396_PARSER.extract explicitly.", uplevel: 1 if $VERBOSE + RFC2396_PARSER.extract(str, schemes, &block) + end + + # Compatibility for RFC2396 parser + def make_regexp(schemes = nil) # :nodoc: + warn "URI::RFC3986_PARSER.make_regexp is obsolete. Use URI::RFC2396_PARSER.make_regexp explicitly.", uplevel: 1 if $VERBOSE + RFC2396_PARSER.make_regexp(schemes) + end + + # Compatibility for RFC2396 parser + def escape(str, unsafe = nil) # :nodoc: + warn "URI::RFC3986_PARSER.escape is obsolete. Use URI::RFC2396_PARSER.escape explicitly.", uplevel: 1 if $VERBOSE + unsafe ? RFC2396_PARSER.escape(str, unsafe) : RFC2396_PARSER.escape(str) + end + + # Compatibility for RFC2396 parser + def unescape(str, escaped = nil) # :nodoc: + warn "URI::RFC3986_PARSER.unescape is obsolete. Use URI::RFC2396_PARSER.unescape explicitly.", uplevel: 1 if $VERBOSE + escaped ? RFC2396_PARSER.unescape(str, escaped) : RFC2396_PARSER.unescape(str) + end + + @@to_s = Kernel.instance_method(:to_s) + if @@to_s.respond_to?(:bind_call) + def inspect + @@to_s.bind_call(self) + end + else + def inspect + @@to_s.bind(self).call + end + end + + private + + def default_regexp # :nodoc: + { + SCHEME: %r[\A#{SCHEME}\z]o, + USERINFO: %r[\A#{USERINFO}\z]o, + HOST: %r[\A#{HOST}\z]o, + ABS_PATH: %r[\A/#{SEG}*+\z]o, + REL_PATH: %r[\A(?!/)#{SEG}++\z]o, + QUERY: %r[\A(?:%\h\h|[!$&-.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?(URI::Generic) + uri + elsif uri = String.try_convert(uri) + parse(uri) + else + raise ArgumentError, + "bad argument (expected URI object or URI string)" + end + end + + end # class Parser +end # module URI |