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# encoding:utf-8
#--
# Copyright (C) 2006-2011 Bob Aman
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#++
require "addressable/version"
require "addressable/idna"
##
# Addressable is a library for processing links and URIs.
module Addressable
##
# This is an implementation of a URI parser based on
# <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986</a>,
# <a href="http://www.ietf.org/rfc/rfc3987.txt">RFC 3987</a>.
class URI
##
# Raised if something other than a uri is supplied.
class InvalidURIError < StandardError
end
##
# Container for the character classes specified in
# <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986</a>.
module CharacterClasses
ALPHA = "a-zA-Z"
DIGIT = "0-9"
GEN_DELIMS = "\\:\\/\\?\\#\\[\\]\\@"
SUB_DELIMS = "\\!\\$\\&\\'\\(\\)\\*\\+\\,\\;\\="
RESERVED = GEN_DELIMS + SUB_DELIMS
UNRESERVED = ALPHA + DIGIT + "\\-\\.\\_\\~"
PCHAR = UNRESERVED + SUB_DELIMS + "\\:\\@"
SCHEME = ALPHA + DIGIT + "\\-\\+\\."
AUTHORITY = PCHAR
PATH = PCHAR + "\\/"
QUERY = PCHAR + "\\/\\?"
FRAGMENT = PCHAR + "\\/\\?"
end
SLASH = '/'
EMPTY_STR = ''
URIREGEX = /^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/
PORT_MAPPING = {
"http" => 80,
"https" => 443,
"ftp" => 21,
"tftp" => 69,
"sftp" => 22,
"ssh" => 22,
"svn+ssh" => 22,
"telnet" => 23,
"nntp" => 119,
"gopher" => 70,
"wais" => 210,
"ldap" => 389,
"prospero" => 1525
}
##
# Returns a URI object based on the parsed string.
#
# @param [String, Addressable::URI, #to_str] uri
# The URI string to parse.
# No parsing is performed if the object is already an
# <code>Addressable::URI</code>.
#
# @return [Addressable::URI] The parsed URI.
def self.parse(uri)
# If we were given nil, return nil.
return nil unless uri
# If a URI object is passed, just return itself.
return uri.dup if uri.kind_of?(self)
# If a URI object of the Ruby standard library variety is passed,
# convert it to a string, then parse the string.
# We do the check this way because we don't want to accidentally
# cause a missing constant exception to be thrown.
if uri.class.name =~ /^URI\b/
uri = uri.to_s
end
# Otherwise, convert to a String
begin
uri = uri.to_str
rescue TypeError, NoMethodError
raise TypeError, "Can't convert #{uri.class} into String."
end if not uri.is_a? String
# This Regexp supplied as an example in RFC 3986, and it works great.
scan = uri.scan(URIREGEX)
fragments = scan[0]
scheme = fragments[1]
authority = fragments[3]
path = fragments[4]
query = fragments[6]
fragment = fragments[8]
user = nil
password = nil
host = nil
port = nil
if authority != nil
# The Regexp above doesn't split apart the authority.
userinfo = authority[/^([^\[\]]*)@/, 1]
if userinfo != nil
user = userinfo.strip[/^([^:]*):?/, 1]
password = userinfo.strip[/:(.*)$/, 1]
end
host = authority.gsub(
/^([^\[\]]*)@/, EMPTY_STR
).gsub(
/:([^:@\[\]]*?)$/, EMPTY_STR
)
port = authority[/:([^:@\[\]]*?)$/, 1]
end
if port == EMPTY_STR
port = nil
end
return new(
:scheme => scheme,
:user => user,
:password => password,
:host => host,
:port => port,
:path => path,
:query => query,
:fragment => fragment
)
end
##
# Converts an input to a URI. The input does not have to be a valid
# URI — the method will use heuristics to guess what URI was intended.
# This is not standards-compliant, merely user-friendly.
#
# @param [String, Addressable::URI, #to_str] uri
# The URI string to parse.
# No parsing is performed if the object is already an
# <code>Addressable::URI</code>.
# @param [Hash] hints
# A <code>Hash</code> of hints to the heuristic parser.
# Defaults to <code>{:scheme => "http"}</code>.
#
# @return [Addressable::URI] The parsed URI.
def self.heuristic_parse(uri, hints={})
# If we were given nil, return nil.
return nil unless uri
# If a URI object is passed, just return itself.
return uri.dup if uri.kind_of?(self)
if !uri.respond_to?(:to_str)
raise TypeError, "Can't convert #{uri.class} into String."
end
# Otherwise, convert to a String
uri = uri.to_str.dup
hints = {
:scheme => "http"
}.merge(hints)
case uri
when /^http:\/+/
uri.gsub!(/^http:\/+/, "http://")
when /^https:\/+/
uri.gsub!(/^https:\/+/, "https://")
when /^feed:\/+http:\/+/
uri.gsub!(/^feed:\/+http:\/+/, "feed:http://")
when /^feed:\/+/
uri.gsub!(/^feed:\/+/, "feed://")
when /^file:\/+/
uri.gsub!(/^file:\/+/, "file:///")
when /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/
uri.gsub!(/^/, hints[:scheme] + "://")
end
parsed = self.parse(uri)
if parsed.scheme =~ /^[^\/?#\.]+\.[^\/?#]+$/
parsed = self.parse(hints[:scheme] + "://" + uri)
end
if parsed.path.include?(".")
new_host = parsed.path[/^([^\/]+\.[^\/]*)/, 1]
if new_host
parsed.defer_validation do
new_path = parsed.path.gsub(
Regexp.new("^" + Regexp.escape(new_host)), EMPTY_STR)
parsed.host = new_host
parsed.path = new_path
parsed.scheme = hints[:scheme] unless parsed.scheme
end
end
end
return parsed
end
##
# Converts a path to a file scheme URI. If the path supplied is
# relative, it will be returned as a relative URI. If the path supplied
# is actually a non-file URI, it will parse the URI as if it had been
# parsed with <code>Addressable::URI.parse</code>. Handles all of the
# various Microsoft-specific formats for specifying paths.
#
# @param [String, Addressable::URI, #to_str] path
# Typically a <code>String</code> path to a file or directory, but
# will return a sensible return value if an absolute URI is supplied
# instead.
#
# @return [Addressable::URI]
# The parsed file scheme URI or the original URI if some other URI
# scheme was provided.
#
# @example
# base = Addressable::URI.convert_path("/absolute/path/")
# uri = Addressable::URI.convert_path("relative/path")
# (base + uri).to_s
# #=> "file:///absolute/path/relative/path"
#
# Addressable::URI.convert_path(
# "c:\\windows\\My Documents 100%20\\foo.txt"
# ).to_s
# #=> "file:///c:/windows/My%20Documents%20100%20/foo.txt"
#
# Addressable::URI.convert_path("http://example.com/").to_s
# #=> "http://example.com/"
def self.convert_path(path)
# If we were given nil, return nil.
return nil unless path
# If a URI object is passed, just return itself.
return path if path.kind_of?(self)
if !path.respond_to?(:to_str)
raise TypeError, "Can't convert #{path.class} into String."
end
# Otherwise, convert to a String
path = path.to_str.strip
path.gsub!(/^file:\/?\/?/, EMPTY_STR) if path =~ /^file:\/?\/?/
path = SLASH + path if path =~ /^([a-zA-Z])[\|:]/
uri = self.parse(path)
if uri.scheme == nil
# Adjust windows-style uris
uri.path.gsub!(/^\/?([a-zA-Z])[\|:][\\\/]/) do
"/#{$1.downcase}:/"
end
uri.path.gsub!(/\\/, SLASH)
if File.exists?(uri.path) &&
File.stat(uri.path).directory?
uri.path.gsub!(/\/$/, EMPTY_STR)
uri.path = uri.path + '/'
end
# If the path is absolute, set the scheme and host.
if uri.path =~ /^\//
uri.scheme = "file"
uri.host = EMPTY_STR
end
uri.normalize!
end
return uri
end
##
# Joins several URIs together.
#
# @param [String, Addressable::URI, #to_str] *uris
# The URIs to join.
#
# @return [Addressable::URI] The joined URI.
#
# @example
# base = "http://example.com/"
# uri = Addressable::URI.parse("relative/path")
# Addressable::URI.join(base, uri)
# #=> #<Addressable::URI:0xcab390 URI:http://example.com/relative/path>
def self.join(*uris)
uri_objects = uris.collect do |uri|
if !uri.respond_to?(:to_str)
raise TypeError, "Can't convert #{uri.class} into String."
end
uri.kind_of?(self) ? uri : self.parse(uri.to_str)
end
result = uri_objects.shift.dup
for uri in uri_objects
result.join!(uri)
end
return result
end
##
# Percent encodes a URI component.
#
# @param [String, #to_str] component The URI component to encode.
#
# @param [String, Regexp] character_class
# The characters which are not percent encoded. If a <code>String</code>
# is passed, the <code>String</code> must be formatted as a regular
# expression character class. (Do not include the surrounding square
# brackets.) For example, <code>"b-zB-Z0-9"</code> would cause
# everything but the letters 'b' through 'z' and the numbers '0' through
# '9' to be percent encoded. If a <code>Regexp</code> is passed, the
# value <code>/[^b-zB-Z0-9]/</code> would have the same effect. A set of
# useful <code>String</code> values may be found in the
# <code>Addressable::URI::CharacterClasses</code> module. The default
# value is the reserved plus unreserved character classes specified in
# <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986</a>.
#
# @return [String] The encoded component.
#
# @example
# Addressable::URI.encode_component("simple/example", "b-zB-Z0-9")
# => "simple%2Fex%61mple"
# Addressable::URI.encode_component("simple/example", /[^b-zB-Z0-9]/)
# => "simple%2Fex%61mple"
# Addressable::URI.encode_component(
# "simple/example", Addressable::URI::CharacterClasses::UNRESERVED
# )
# => "simple%2Fexample"
def self.encode_component(component, character_class=
CharacterClasses::RESERVED + CharacterClasses::UNRESERVED)
return nil if component.nil?
begin
if component.kind_of?(Symbol) || component.kind_of?(Numeric)
component = component.to_s
else
component = component.to_str
end
rescue TypeError, NoMethodError
raise TypeError, "Can't convert #{component.class} into String."
end if !component.is_a? String
if ![String, Regexp].include?(character_class.class)
raise TypeError,
"Expected String or Regexp, got #{character_class.inspect}"
end
if character_class.kind_of?(String)
character_class = /[^#{character_class}]/
end
if component.respond_to?(:force_encoding)
# We can't perform regexps on invalid UTF sequences, but
# here we need to, so switch to ASCII.
component = component.dup
component.force_encoding(Encoding::ASCII_8BIT)
end
return component.gsub(character_class) do |sequence|
(sequence.unpack('C*').map { |c| "%" + ("%02x" % c).upcase }).join
end
end
class << self
alias_method :encode_component, :encode_component
end
##
# Unencodes any percent encoded characters within a URI component.
# This method may be used for unencoding either components or full URIs,
# however, it is recommended to use the <code>unencode_component</code>
# alias when unencoding components.
#
# @param [String, Addressable::URI, #to_str] uri
# The URI or component to unencode.
#
# @param [Class] return_type
# The type of object to return.
# This value may only be set to <code>String</code> or
# <code>Addressable::URI</code>. All other values are invalid. Defaults
# to <code>String</code>.
#
# @return [String, Addressable::URI]
# The unencoded component or URI.
# The return type is determined by the <code>return_type</code>
# parameter.
def self.unencode(uri, return_type=String)
return nil if uri.nil?
begin
uri = uri.to_str
rescue NoMethodError, TypeError
raise TypeError, "Can't convert #{uri.class} into String."
end if !uri.is_a? String
if ![String, ::Addressable::URI].include?(return_type)
raise TypeError,
"Expected Class (String or Addressable::URI), " +
"got #{return_type.inspect}"
end
result = uri.gsub(/%[0-9a-f]{2}/i) do |sequence|
sequence[1..3].to_i(16).chr
end
result.force_encoding("utf-8") if result.respond_to?(:force_encoding)
if return_type == String
return result
elsif return_type == ::Addressable::URI
return ::Addressable::URI.parse(result)
end
end
class << self
alias_method :unescape, :unencode
alias_method :unencode_component, :unencode
alias_method :unescape_component, :unencode
end
##
# Normalizes the encoding of a URI component.
#
# @param [String, #to_str] component The URI component to encode.
#
# @param [String, Regexp] character_class
# The characters which are not percent encoded. If a <code>String</code>
# is passed, the <code>String</code> must be formatted as a regular
# expression character class. (Do not include the surrounding square
# brackets.) For example, <code>"b-zB-Z0-9"</code> would cause
# everything but the letters 'b' through 'z' and the numbers '0'
# through '9' to be percent encoded. If a <code>Regexp</code> is passed,
# the value <code>/[^b-zB-Z0-9]/</code> would have the same effect. A
# set of useful <code>String</code> values may be found in the
# <code>Addressable::URI::CharacterClasses</code> module. The default
# value is the reserved plus unreserved character classes specified in
# <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986</a>.
#
# @return [String] The normalized component.
#
# @example
# Addressable::URI.normalize_component("simpl%65/%65xampl%65", "b-zB-Z")
# => "simple%2Fex%61mple"
# Addressable::URI.normalize_component(
# "simpl%65/%65xampl%65", /[^b-zB-Z]/
# )
# => "simple%2Fex%61mple"
# Addressable::URI.normalize_component(
# "simpl%65/%65xampl%65",
# Addressable::URI::CharacterClasses::UNRESERVED
# )
# => "simple%2Fexample"
def self.normalize_component(component, character_class=
CharacterClasses::RESERVED + CharacterClasses::UNRESERVED)
return nil if component.nil?
begin
component = component.to_str
rescue NoMethodError, TypeError
raise TypeError, "Can't convert #{component.class} into String."
end if !component.is_a? String
if ![String, Regexp].include?(character_class.class)
raise TypeError,
"Expected String or Regexp, got #{character_class.inspect}"
end
if character_class.kind_of?(String)
character_class = /[^#{character_class}]/
end
if component.respond_to?(:force_encoding)
# We can't perform regexps on invalid UTF sequences, but
# here we need to, so switch to ASCII.
component = component.dup
component.force_encoding(Encoding::ASCII_8BIT)
end
unencoded = self.unencode_component(component)
begin
encoded = self.encode_component(
Addressable::IDNA.unicode_normalize_kc(unencoded),
character_class
)
rescue ArgumentError
encoded = self.encode_component(unencoded)
end
return encoded
end
##
# Percent encodes any special characters in the URI.
#
# @param [String, Addressable::URI, #to_str] uri
# The URI to encode.
#
# @param [Class] return_type
# The type of object to return.
# This value may only be set to <code>String</code> or
# <code>Addressable::URI</code>. All other values are invalid. Defaults
# to <code>String</code>.
#
# @return [String, Addressable::URI]
# The encoded URI.
# The return type is determined by the <code>return_type</code>
# parameter.
def self.encode(uri, return_type=String)
return nil if uri.nil?
begin
uri = uri.to_str
rescue NoMethodError, TypeError
raise TypeError, "Can't convert #{uri.class} into String."
end if !uri.is_a? String
if ![String, ::Addressable::URI].include?(return_type)
raise TypeError,
"Expected Class (String or Addressable::URI), " +
"got #{return_type.inspect}"
end
uri_object = uri.kind_of?(self) ? uri : self.parse(uri)
encoded_uri = Addressable::URI.new(
:scheme => self.encode_component(uri_object.scheme,
Addressable::URI::CharacterClasses::SCHEME),
:authority => self.encode_component(uri_object.authority,
Addressable::URI::CharacterClasses::AUTHORITY),
:path => self.encode_component(uri_object.path,
Addressable::URI::CharacterClasses::PATH),
:query => self.encode_component(uri_object.query,
Addressable::URI::CharacterClasses::QUERY),
:fragment => self.encode_component(uri_object.fragment,
Addressable::URI::CharacterClasses::FRAGMENT)
)
if return_type == String
return encoded_uri.to_s
elsif return_type == ::Addressable::URI
return encoded_uri
end
end
class << self
alias_method :escape, :encode
end
##
# Normalizes the encoding of a URI. Characters within a hostname are
# not percent encoded to allow for internationalized domain names.
#
# @param [String, Addressable::URI, #to_str] uri
# The URI to encode.
#
# @param [Class] return_type
# The type of object to return.
# This value may only be set to <code>String</code> or
# <code>Addressable::URI</code>. All other values are invalid. Defaults
# to <code>String</code>.
#
# @return [String, Addressable::URI]
# The encoded URI.
# The return type is determined by the <code>return_type</code>
# parameter.
def self.normalized_encode(uri, return_type=String)
begin
uri = uri.to_str
rescue NoMethodError, TypeError
raise TypeError, "Can't convert #{uri.class} into String."
end if !uri.is_a? String
if ![String, ::Addressable::URI].include?(return_type)
raise TypeError,
"Expected Class (String or Addressable::URI), " +
"got #{return_type.inspect}"
end
uri_object = uri.kind_of?(self) ? uri : self.parse(uri)
components = {
:scheme => self.unencode_component(uri_object.scheme),
:user => self.unencode_component(uri_object.user),
:password => self.unencode_component(uri_object.password),
:host => self.unencode_component(uri_object.host),
:port => uri_object.port,
:path => self.unencode_component(uri_object.path),
:query => self.unencode_component(uri_object.query),
:fragment => self.unencode_component(uri_object.fragment)
}
components.each do |key, value|
if value != nil
begin
components[key] =
Addressable::IDNA.unicode_normalize_kc(value.to_str)
rescue ArgumentError
# Likely a malformed UTF-8 character, skip unicode normalization
components[key] = value.to_str
end
end
end
encoded_uri = Addressable::URI.new(
:scheme => self.encode_component(components[:scheme],
Addressable::URI::CharacterClasses::SCHEME),
:user => self.encode_component(components[:user],
Addressable::URI::CharacterClasses::UNRESERVED),
:password => self.encode_component(components[:password],
Addressable::URI::CharacterClasses::UNRESERVED),
:host => components[:host],
:port => components[:port],
:path => self.encode_component(components[:path],
Addressable::URI::CharacterClasses::PATH),
:query => self.encode_component(components[:query],
Addressable::URI::CharacterClasses::QUERY),
:fragment => self.encode_component(components[:fragment],
Addressable::URI::CharacterClasses::FRAGMENT)
)
if return_type == String
return encoded_uri.to_s
elsif return_type == ::Addressable::URI
return encoded_uri
end
end
##
# Encodes a set of key/value pairs according to the rules for the
# <code>application/x-www-form-urlencoded</code> MIME type.
#
# @param [#to_hash, #to_ary] form_values
# The form values to encode.
#
# @param [TrueClass, FalseClass] sort
# Sort the key/value pairs prior to encoding.
# Defaults to <code>false</code>.
#
# @return [String]
# The encoded value.
def self.form_encode(form_values, sort=false)
if form_values.respond_to?(:to_hash)
form_values = form_values.to_hash.to_a
elsif form_values.respond_to?(:to_ary)
form_values = form_values.to_ary
else
raise TypeError, "Can't convert #{form_values.class} into Array."
end
form_values = form_values.inject([]) do |accu, (key, value)|
if value.kind_of?(Array)
value.each do |v|
accu << [key.to_s, v.to_s]
end
else
accu << [key.to_s, value.to_s]
end
accu
end
if sort
# Useful for OAuth and optimizing caching systems
form_values = form_values.sort
end
escaped_form_values = form_values.map do |(key, value)|
# Line breaks are CRLF pairs
[
self.encode_component(
key.gsub(/(\r\n|\n|\r)/, "\r\n"),
CharacterClasses::UNRESERVED
).gsub("%20", "+"),
self.encode_component(
value.gsub(/(\r\n|\n|\r)/, "\r\n"),
CharacterClasses::UNRESERVED
).gsub("%20", "+")
]
end
return (escaped_form_values.map do |(key, value)|
"#{key}=#{value}"
end).join("&")
end
##
# Decodes a <code>String</code> according to the rules for the
# <code>application/x-www-form-urlencoded</code> MIME type.
#
# @param [String, #to_str] encoded_value
# The form values to decode.
#
# @return [Array]
# The decoded values.
# This is not a <code>Hash</code> because of the possibility for
# duplicate keys.
def self.form_unencode(encoded_value)
if !encoded_value.respond_to?(:to_str)
raise TypeError, "Can't convert #{encoded_value.class} into String."
end
encoded_value = encoded_value.to_str
split_values = encoded_value.split("&").map do |pair|
pair.split("=", 2)
end
return split_values.map do |(key, value)|
[
key ? self.unencode_component(
key.gsub("+", "%20")).gsub(/(\r\n|\n|\r)/, "\n") : nil,
value ? (self.unencode_component(
value.gsub("+", "%20")).gsub(/(\r\n|\n|\r)/, "\n")) : nil
]
end
end
##
# Creates a new uri object from component parts.
#
# @option [String, #to_str] scheme The scheme component.
# @option [String, #to_str] user The user component.
# @option [String, #to_str] password The password component.
# @option [String, #to_str] userinfo
# The userinfo component. If this is supplied, the user and password
# components must be omitted.
# @option [String, #to_str] host The host component.
# @option [String, #to_str] port The port component.
# @option [String, #to_str] authority
# The authority component. If this is supplied, the user, password,
# userinfo, host, and port components must be omitted.
# @option [String, #to_str] path The path component.
# @option [String, #to_str] query The query component.
# @option [String, #to_str] fragment The fragment component.
#
# @return [Addressable::URI] The constructed URI object.
def initialize(options={})
if options.has_key?(:authority)
if (options.keys & [:userinfo, :user, :password, :host, :port]).any?
raise ArgumentError,
"Cannot specify both an authority and any of the components " +
"within the authority."
end
end
if options.has_key?(:userinfo)
if (options.keys & [:user, :password]).any?
raise ArgumentError,
"Cannot specify both a userinfo and either the user or password."
end
end
self.defer_validation do
# Bunch of crazy logic required because of the composite components
# like userinfo and authority.
self.scheme = options[:scheme] if options[:scheme]
self.user = options[:user] if options[:user]
self.password = options[:password] if options[:password]
self.userinfo = options[:userinfo] if options[:userinfo]
self.host = options[:host] if options[:host]
self.port = options[:port] if options[:port]
self.authority = options[:authority] if options[:authority]
self.path = options[:path] if options[:path]
self.query = options[:query] if options[:query]
self.query_values = options[:query_values] if options[:query_values]
self.fragment = options[:fragment] if options[:fragment]
end
end
##
# Freeze URI, initializing instance variables.
#
# @return [Addressable::URI] The frozen URI object.
def freeze
self.normalized_scheme
self.normalized_user
self.normalized_password
self.normalized_userinfo
self.normalized_host
self.normalized_port
self.normalized_authority
self.normalized_site
self.normalized_path
self.normalized_query
self.normalized_fragment
self.hash
super
end
##
# The scheme component for this URI.
#
# @return [String] The scheme component.
def scheme
return instance_variable_defined?(:@scheme) ? @scheme : nil
end
##
# The scheme component for this URI, normalized.
#
# @return [String] The scheme component, normalized.
def normalized_scheme
self.scheme && @normalized_scheme ||= (begin
if self.scheme =~ /^\s*ssh\+svn\s*$/i
"svn+ssh"
else
Addressable::URI.normalize_component(
self.scheme.strip.downcase,
Addressable::URI::CharacterClasses::SCHEME
)
end
end)
end
##
# Sets the scheme component for this URI.
#
# @param [String, #to_str] new_scheme The new scheme component.
def scheme=(new_scheme)
if new_scheme && !new_scheme.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_scheme.class} into String."
elsif new_scheme
new_scheme = new_scheme.to_str
end
if new_scheme && new_scheme !~ /[a-z][a-z0-9\.\+\-]*/i
raise InvalidURIError, "Invalid scheme format."
end
@scheme = new_scheme
@scheme = nil if @scheme.to_s.strip.empty?
# Reset dependant values
@normalized_scheme = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# The user component for this URI.
#
# @return [String] The user component.
def user
return instance_variable_defined?(:@user) ? @user : nil
end
##
# The user component for this URI, normalized.
#
# @return [String] The user component, normalized.
def normalized_user
self.user && @normalized_user ||= (begin
if normalized_scheme =~ /https?/ && self.user.strip.empty? &&
(!self.password || self.password.strip.empty?)
nil
else
Addressable::URI.normalize_component(
self.user.strip,
Addressable::URI::CharacterClasses::UNRESERVED
)
end
end)
end
##
# Sets the user component for this URI.
#
# @param [String, #to_str] new_user The new user component.
def user=(new_user)
if new_user && !new_user.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_user.class} into String."
end
@user = new_user ? new_user.to_str : nil
# You can't have a nil user with a non-nil password
if password != nil
@user = EMPTY_STR if @user.nil?
end
# Reset dependant values
@userinfo = nil
@normalized_userinfo = nil
@authority = nil
@normalized_user = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# The password component for this URI.
#
# @return [String] The password component.
def password
return instance_variable_defined?(:@password) ? @password : nil
end
##
# The password component for this URI, normalized.
#
# @return [String] The password component, normalized.
def normalized_password
self.password && @normalized_password ||= (begin
if self.normalized_scheme =~ /https?/ && self.password.strip.empty? &&
(!self.user || self.user.strip.empty?)
nil
else
Addressable::URI.normalize_component(
self.password.strip,
Addressable::URI::CharacterClasses::UNRESERVED
)
end
end)
end
##
# Sets the password component for this URI.
#
# @param [String, #to_str] new_password The new password component.
def password=(new_password)
if new_password && !new_password.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_password.class} into String."
end
@password = new_password ? new_password.to_str : nil
# You can't have a nil user with a non-nil password
@password ||= nil
@user ||= nil
if @password != nil
@user = EMPTY_STR if @user.nil?
end
# Reset dependant values
@userinfo = nil
@normalized_userinfo = nil
@authority = nil
@normalized_password = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# The userinfo component for this URI.
# Combines the user and password components.
#
# @return [String] The userinfo component.
def userinfo
current_user = self.user
current_password = self.password
(current_user || current_password) && @userinfo ||= (begin
if current_user && current_password
"#{current_user}:#{current_password}"
elsif current_user && !current_password
"#{current_user}"
end
end)
end
##
# The userinfo component for this URI, normalized.
#
# @return [String] The userinfo component, normalized.
def normalized_userinfo
self.userinfo && @normalized_userinfo ||= (begin
current_user = self.normalized_user
current_password = self.normalized_password
if !current_user && !current_password
nil
elsif current_user && current_password
"#{current_user}:#{current_password}"
elsif current_user && !current_password
"#{current_user}"
end
end)
end
##
# Sets the userinfo component for this URI.
#
# @param [String, #to_str] new_userinfo The new userinfo component.
def userinfo=(new_userinfo)
if new_userinfo && !new_userinfo.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_userinfo.class} into String."
end
new_user, new_password = if new_userinfo
[
new_userinfo.to_str.strip[/^(.*):/, 1],
new_userinfo.to_str.strip[/:(.*)$/, 1]
]
else
[nil, nil]
end
# Password assigned first to ensure validity in case of nil
self.password = new_password
self.user = new_user
# Reset dependant values
@authority = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# The host component for this URI.
#
# @return [String] The host component.
def host
return instance_variable_defined?(:@host) ? @host : nil
end
##
# The host component for this URI, normalized.
#
# @return [String] The host component, normalized.
def normalized_host
self.host && @normalized_host ||= (begin
if !self.host.strip.empty?
result = ::Addressable::IDNA.to_ascii(
URI.unencode_component(self.host.strip.downcase)
)
if result[-1..-1] == "."
# Trailing dots are unnecessary
result = result[0...-1]
end
result
else
EMPTY_STR
end
end)
end
##
# Sets the host component for this URI.
#
# @param [String, #to_str] new_host The new host component.
def host=(new_host)
if new_host && !new_host.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_host.class} into String."
end
@host = new_host ? new_host.to_str : nil
unreserved = CharacterClasses::UNRESERVED
sub_delims = CharacterClasses::SUB_DELIMS
if @host != nil && (@host =~ /[<>{}\/\?\#\@]/ ||
(@host[/^\[(.*)\]$/, 1] != nil && @host[/^\[(.*)\]$/, 1] !~
Regexp.new("^[#{unreserved}#{sub_delims}:]*$")))
raise InvalidURIError, "Invalid character in host: '#{@host.to_s}'"
end
# Reset dependant values
@authority = nil
@normalized_host = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# @see Addressable::URI#host
alias_method :hostname, :host
##
# @see Addressable::URI#host=
alias_method :hostname=, :host=
##
# The authority component for this URI.
# Combines the user, password, host, and port components.
#
# @return [String] The authority component.
def authority
self.host && @authority ||= (begin
authority = ""
if self.userinfo != nil
authority << "#{self.userinfo}@"
end
authority << self.host
if self.port != nil
authority << ":#{self.port}"
end
authority
end)
end
##
# The authority component for this URI, normalized.
#
# @return [String] The authority component, normalized.
def normalized_authority
self.authority && @normalized_authority ||= (begin
authority = ""
if self.normalized_userinfo != nil
authority << "#{self.normalized_userinfo}@"
end
authority << self.normalized_host
if self.normalized_port != nil
authority << ":#{self.normalized_port}"
end
authority
end)
end
##
# Sets the authority component for this URI.
#
# @param [String, #to_str] new_authority The new authority component.
def authority=(new_authority)
if new_authority
if !new_authority.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_authority.class} into String."
end
new_authority = new_authority.to_str
new_userinfo = new_authority[/^([^\[\]]*)@/, 1]
if new_userinfo
new_user = new_userinfo.strip[/^([^:]*):?/, 1]
new_password = new_userinfo.strip[/:(.*)$/, 1]
end
new_host = new_authority.gsub(
/^([^\[\]]*)@/, EMPTY_STR
).gsub(
/:([^:@\[\]]*?)$/, EMPTY_STR
)
new_port =
new_authority[/:([^:@\[\]]*?)$/, 1]
end
# Password assigned first to ensure validity in case of nil
self.password = defined?(new_password) ? new_password : nil
self.user = defined?(new_user) ? new_user : nil
self.host = defined?(new_host) ? new_host : nil
self.port = defined?(new_port) ? new_port : nil
# Reset dependant values
@userinfo = nil
@normalized_userinfo = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# The origin for this URI, serialized to ASCII, as per
# draft-ietf-websec-origin-00, section 5.2.
#
# @return [String] The serialized origin.
def origin
return (if self.scheme && self.authority
if self.normalized_port
(
"#{self.normalized_scheme}://#{self.normalized_host}" +
":#{self.normalized_port}"
)
else
"#{self.normalized_scheme}://#{self.normalized_host}"
end
else
"null"
end)
end
# Returns an array of known ip-based schemes. These schemes typically
# use a similar URI form:
# <code>//<user>:<password>@<host>:<port>/<url-path></code>
def self.ip_based_schemes
return self.port_mapping.keys
end
# Returns a hash of common IP-based schemes and their default port
# numbers. Adding new schemes to this hash, as necessary, will allow
# for better URI normalization.
def self.port_mapping
PORT_MAPPING
end
##
# The port component for this URI.
# This is the port number actually given in the URI. This does not
# infer port numbers from default values.
#
# @return [Integer] The port component.
def port
return instance_variable_defined?(:@port) ? @port : nil
end
##
# The port component for this URI, normalized.
#
# @return [Integer] The port component, normalized.
def normalized_port
if URI.port_mapping[self.normalized_scheme] == self.port
nil
else
self.port
end
end
##
# Sets the port component for this URI.
#
# @param [String, Integer, #to_s] new_port The new port component.
def port=(new_port)
if new_port != nil && new_port.respond_to?(:to_str)
new_port = Addressable::URI.unencode_component(new_port.to_str)
end
if new_port != nil && !(new_port.to_s =~ /^\d+$/)
raise InvalidURIError,
"Invalid port number: #{new_port.inspect}"
end
@port = new_port.to_s.to_i
@port = nil if @port == 0
# Reset dependant values
@authority = nil
@normalized_port = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# The inferred port component for this URI.
# This method will normalize to the default port for the URI's scheme if
# the port isn't explicitly specified in the URI.
#
# @return [Integer] The inferred port component.
def inferred_port
if self.port.to_i == 0
self.default_port
else
self.port.to_i
end
end
##
# The default port for this URI's scheme.
# This method will always returns the default port for the URI's scheme
# regardless of the presence of an explicit port in the URI.
#
# @return [Integer] The default port.
def default_port
URI.port_mapping[self.scheme.strip.downcase] if self.scheme
end
##
# The combination of components that represent a site.
# Combines the scheme, user, password, host, and port components.
# Primarily useful for HTTP and HTTPS.
#
# For example, <code>"http://example.com/path?query"</code> would have a
# <code>site</code> value of <code>"http://example.com"</code>.
#
# @return [String] The components that identify a site.
def site
(self.scheme || self.authority) && @site ||= (begin
site_string = ""
site_string << "#{self.scheme}:" if self.scheme != nil
site_string << "//#{self.authority}" if self.authority != nil
site_string
end)
end
##
# The normalized combination of components that represent a site.
# Combines the scheme, user, password, host, and port components.
# Primarily useful for HTTP and HTTPS.
#
# For example, <code>"http://example.com/path?query"</code> would have a
# <code>site</code> value of <code>"http://example.com"</code>.
#
# @return [String] The normalized components that identify a site.
def normalized_site
self.site && @normalized_site ||= (begin
site_string = ""
if self.normalized_scheme != nil
site_string << "#{self.normalized_scheme}:"
end
if self.normalized_authority != nil
site_string << "//#{self.normalized_authority}"
end
site_string
end)
end
##
# Sets the site value for this URI.
#
# @param [String, #to_str] new_site The new site value.
def site=(new_site)
if new_site
if !new_site.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_site.class} into String."
end
new_site = new_site.to_str
# These two regular expressions derived from the primary parsing
# expression
self.scheme = new_site[/^(?:([^:\/?#]+):)?(?:\/\/(?:[^\/?#]*))?$/, 1]
self.authority = new_site[
/^(?:(?:[^:\/?#]+):)?(?:\/\/([^\/?#]*))?$/, 1
]
else
self.scheme = nil
self.authority = nil
end
end
##
# The path component for this URI.
#
# @return [String] The path component.
def path
return instance_variable_defined?(:@path) ? @path : EMPTY_STR
end
NORMPATH = /^(?!\/)[^\/:]*:.*$/
##
# The path component for this URI, normalized.
#
# @return [String] The path component, normalized.
def normalized_path
@normalized_path ||= (begin
path = self.path.to_s
if self.scheme == nil && path =~ NORMPATH
# Relative paths with colons in the first segment are ambiguous.
path = path.sub(":", "%2F")
end
# String#split(delimeter, -1) uses the more strict splitting behavior
# found by default in Python.
result = (path.strip.split(SLASH, -1).map do |segment|
Addressable::URI.normalize_component(
segment,
Addressable::URI::CharacterClasses::PCHAR
)
end).join(SLASH)
result = URI.normalize_path(result)
if result.empty? &&
["http", "https", "ftp", "tftp"].include?(self.normalized_scheme)
result = SLASH
end
result
end)
end
##
# Sets the path component for this URI.
#
# @param [String, #to_str] new_path The new path component.
def path=(new_path)
if new_path && !new_path.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_path.class} into String."
end
@path = (new_path || EMPTY_STR).to_str
if !@path.empty? && @path[0..0] != SLASH && host != nil
@path = "/#{@path}"
end
# Reset dependant values
@normalized_path = nil
@uri_string = nil
@hash = nil
end
##
# The basename, if any, of the file in the path component.
#
# @return [String] The path's basename.
def basename
# Path cannot be nil
return File.basename(self.path).gsub(/;[^\/]*$/, EMPTY_STR)
end
##
# The extname, if any, of the file in the path component.
# Empty string if there is no extension.
#
# @return [String] The path's extname.
def extname
return nil unless self.path
return File.extname(self.basename)
end
##
# The query component for this URI.
#
# @return [String] The query component.
def query
return instance_variable_defined?(:@query) ? @query : nil
end
##
# The query component for this URI, normalized.
#
# @return [String] The query component, normalized.
def normalized_query
self.query && @normalized_query ||= (begin
(self.query.split("&", -1).map do |pair|
Addressable::URI.normalize_component(
pair,
Addressable::URI::CharacterClasses::QUERY.sub("\\&", "")
)
end).join("&")
end)
end
##
# Sets the query component for this URI.
#
# @param [String, #to_str] new_query The new query component.
def query=(new_query)
if new_query && !new_query.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_query.class} into String."
end
@query = new_query ? new_query.to_str : nil
# Reset dependant values
@normalized_query = nil
@uri_string = nil
@hash = nil
end
##
# Converts the query component to a Hash value.
#
# @param [Class] return_type The return type desired. Value must be either
# `Hash` or `Array`.
#
# @return [Hash, Array] The query string parsed as a Hash or Array object.
#
# @example
# Addressable::URI.parse("?one=1&two=2&three=3").query_values
# #=> {"one" => "1", "two" => "2", "three" => "3"}
# Addressable::URI.parse("?one=two&one=three").query_values(Array)
# #=> [["one", "two"], ["one", "three"]]
# Addressable::URI.parse("?one=two&one=three").query_values(Hash)
# #=> {"one" => "three"}
def query_values(return_type=Hash)
empty_accumulator = Array == return_type ? [] : {}
if return_type != Hash && return_type != Array
raise ArgumentError, "Invalid return type. Must be Hash or Array."
end
return nil if self.query == nil
split_query = (self.query.split("&").map do |pair|
pair.split("=", 2) if pair && !pair.empty?
end).compact
return split_query.inject(empty_accumulator.dup) do |accu, pair|
# I'd rather use key/value identifiers instead of array lookups,
# but in this case I really want to maintain the exact pair structure,
# so it's best to make all changes in-place.
pair[0] = URI.unencode_component(pair[0])
# This looks weird, but it's correct. Handles query values like:
# ?data=1&flag&color=blue
# In this case, `flag` would evaluate to `true`, which is what you
# want. Its absence implies that `flag` resolves to `false`.
# value = true if value.nil?
if pair[1].respond_to?(:to_str)
# I loathe the fact that I have to do this. Stupid HTML 4.01.
# Treating '+' as a space was just an unbelievably bad idea.
# There was nothing wrong with '%20'!
# If it ain't broke, don't fix it!
pair[1] = URI.unencode_component(pair[1].to_str.gsub(/\+/, " "))
end
if return_type == Hash
accu[pair[0]] = pair[1]
else
accu << pair
end
accu
end
end
##
# Sets the query component for this URI from a Hash object.
# An empty Hash or Array will result in an empty query string.
#
# @param [Hash, #to_hash, Array] new_query_values The new query values.
#
# @example
# uri.query_values = {:a => "a", :b => ["c", "d", "e"]}
# uri.query
# # => "a=a&b=c&b=d&b=e"
# uri.query_values = [['a', 'a'], ['b', 'c'], ['b', 'd'], ['b', 'e']]
# uri.query
# # => "a=a&b=c&b=d&b=e"
# uri.query_values = [['a', 'a'], ['b', ['c', 'd', 'e']]]
# uri.query
# # => "a=a&b=c&b=d&b=e"
# uri.query_values = [['flag'], ['key', 'value']]
# uri.query
# # => "flag&key=value"
def query_values=(new_query_values)
if new_query_values == nil
self.query = nil
return nil
end
if !new_query_values.is_a?(Array)
if !new_query_values.respond_to?(:to_hash)
raise TypeError,
"Can't convert #{new_query_values.class} into Hash."
end
new_query_values = new_query_values.to_hash
new_query_values = flatten_keys new_query_values
new_query_values = new_query_values.map do |key, value|
#key = key.to_s if key.kind_of?(Symbol)
[key, value]
end
# Useful default for OAuth and caching.
# Only to be used for non-Array inputs. Arrays should preserve order.
new_query_values.sort!
end
# new_query_values have form [['key1', 'value1'], ['key2', 'value2']]
buffer = ""
new_query_values.each do |key, value|
encoded_key = URI.encode_component(
key, CharacterClasses::UNRESERVED
)
if value == nil || value == true
buffer << "#{encoded_key}&"
elsif value.kind_of?(Array)
value.each do |sub_value|
encoded_value = URI.encode_component(
sub_value, CharacterClasses::UNRESERVED
)
buffer << "#{encoded_key}=#{encoded_value}&"
end
else
encoded_value = URI.encode_component(
value, CharacterClasses::UNRESERVED
)
buffer << "#{encoded_key}=#{encoded_value}&"
end
end
self.query = buffer.chop
end
def flatten_keys hash, keys=nil
new_hash = {}
hash.map do |k, v|
string_key = k.to_s
new_keys = keys ? "#{keys}[#{string_key}]" : string_key
if v.is_a?(Hash)
sub_hash = flatten_keys v, new_keys
new_hash.merge! sub_hash
else
new_hash[new_keys] = v
end
end
new_hash
end
##
# The HTTP request URI for this URI. This is the path and the
# query string.
#
# @return [String] The request URI required for an HTTP request.
def request_uri
return nil if self.absolute? && self.scheme !~ /^https?$/
return (
(!self.path.empty? ? self.path : SLASH) +
(self.query ? "?#{self.query}" : EMPTY_STR)
)
end
##
# Sets the HTTP request URI for this URI.
#
# @param [String, #to_str] new_request_uri The new HTTP request URI.
def request_uri=(new_request_uri)
if !new_request_uri.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_request_uri.class} into String."
end
if self.absolute? && self.scheme !~ /^https?$/
raise InvalidURIError,
"Cannot set an HTTP request URI for a non-HTTP URI."
end
new_request_uri = new_request_uri.to_str
path_component = new_request_uri[/^([^\?]*)\?(?:.*)$/, 1]
query_component = new_request_uri[/^(?:[^\?]*)\?(.*)$/, 1]
path_component = path_component.to_s
path_component = (!path_component.empty? ? path_component : SLASH)
self.path = path_component
self.query = query_component
# Reset dependant values
@uri_string = nil
@hash = nil
end
##
# The fragment component for this URI.
#
# @return [String] The fragment component.
def fragment
return instance_variable_defined?(:@fragment) ? @fragment : nil
end
##
# The fragment component for this URI, normalized.
#
# @return [String] The fragment component, normalized.
def normalized_fragment
self.fragment && @normalized_fragment ||= (begin
Addressable::URI.normalize_component(
self.fragment.strip,
Addressable::URI::CharacterClasses::FRAGMENT
)
end)
end
##
# Sets the fragment component for this URI.
#
# @param [String, #to_str] new_fragment The new fragment component.
def fragment=(new_fragment)
if new_fragment && !new_fragment.respond_to?(:to_str)
raise TypeError, "Can't convert #{new_fragment.class} into String."
end
@fragment = new_fragment ? new_fragment.to_str : nil
# Reset dependant values
@normalized_fragment = nil
@uri_string = nil
@hash = nil
# Ensure we haven't created an invalid URI
validate()
end
##
# Determines if the scheme indicates an IP-based protocol.
#
# @return [TrueClass, FalseClass]
# <code>true</code> if the scheme indicates an IP-based protocol.
# <code>false</code> otherwise.
def ip_based?
if self.scheme
return URI.ip_based_schemes.include?(
self.scheme.strip.downcase)
end
return false
end
##
# Determines if the URI is relative.
#
# @return [TrueClass, FalseClass]
# <code>true</code> if the URI is relative. <code>false</code>
# otherwise.
def relative?
return self.scheme.nil?
end
##
# Determines if the URI is absolute.
#
# @return [TrueClass, FalseClass]
# <code>true</code> if the URI is absolute. <code>false</code>
# otherwise.
def absolute?
return !relative?
end
##
# Joins two URIs together.
#
# @param [String, Addressable::URI, #to_str] The URI to join with.
#
# @return [Addressable::URI] The joined URI.
def join(uri)
if !uri.respond_to?(:to_str)
raise TypeError, "Can't convert #{uri.class} into String."
end
if !uri.kind_of?(URI)
# Otherwise, convert to a String, then parse.
uri = URI.parse(uri.to_str)
end
if uri.to_s.empty?
return self.dup
end
joined_scheme = nil
joined_user = nil
joined_password = nil
joined_host = nil
joined_port = nil
joined_path = nil
joined_query = nil
joined_fragment = nil
# Section 5.2.2 of RFC 3986
if uri.scheme != nil
joined_scheme = uri.scheme
joined_user = uri.user
joined_password = uri.password
joined_host = uri.host
joined_port = uri.port
joined_path = URI.normalize_path(uri.path)
joined_query = uri.query
else
if uri.authority != nil
joined_user = uri.user
joined_password = uri.password
joined_host = uri.host
joined_port = uri.port
joined_path = URI.normalize_path(uri.path)
joined_query = uri.query
else
if uri.path == nil || uri.path.empty?
joined_path = self.path
if uri.query != nil
joined_query = uri.query
else
joined_query = self.query
end
else
if uri.path[0..0] == SLASH
joined_path = URI.normalize_path(uri.path)
else
base_path = self.path.dup
base_path = EMPTY_STR if base_path == nil
base_path = URI.normalize_path(base_path)
# Section 5.2.3 of RFC 3986
#
# Removes the right-most path segment from the base path.
if base_path =~ /\//
base_path.gsub!(/\/[^\/]+$/, SLASH)
else
base_path = EMPTY_STR
end
# If the base path is empty and an authority segment has been
# defined, use a base path of SLASH
if base_path.empty? && self.authority != nil
base_path = SLASH
end
joined_path = URI.normalize_path(base_path + uri.path)
end
joined_query = uri.query
end
joined_user = self.user
joined_password = self.password
joined_host = self.host
joined_port = self.port
end
joined_scheme = self.scheme
end
joined_fragment = uri.fragment
return Addressable::URI.new(
:scheme => joined_scheme,
:user => joined_user,
:password => joined_password,
:host => joined_host,
:port => joined_port,
:path => joined_path,
:query => joined_query,
:fragment => joined_fragment
)
end
alias_method :+, :join
##
# Destructive form of <code>join</code>.
#
# @param [String, Addressable::URI, #to_str] The URI to join with.
#
# @return [Addressable::URI] The joined URI.
#
# @see Addressable::URI#join
def join!(uri)
replace_self(self.join(uri))
end
##
# Merges a URI with a <code>Hash</code> of components.
# This method has different behavior from <code>join</code>. Any
# components present in the <code>hash</code> parameter will override the
# original components. The path component is not treated specially.
#
# @param [Hash, Addressable::URI, #to_hash] The components to merge with.
#
# @return [Addressable::URI] The merged URI.
#
# @see Hash#merge
def merge(hash)
if !hash.respond_to?(:to_hash)
raise TypeError, "Can't convert #{hash.class} into Hash."
end
hash = hash.to_hash
if hash.has_key?(:authority)
if (hash.keys & [:userinfo, :user, :password, :host, :port]).any?
raise ArgumentError,
"Cannot specify both an authority and any of the components " +
"within the authority."
end
end
if hash.has_key?(:userinfo)
if (hash.keys & [:user, :password]).any?
raise ArgumentError,
"Cannot specify both a userinfo and either the user or password."
end
end
uri = Addressable::URI.new
uri.defer_validation do
# Bunch of crazy logic required because of the composite components
# like userinfo and authority.
uri.scheme =
hash.has_key?(:scheme) ? hash[:scheme] : self.scheme
if hash.has_key?(:authority)
uri.authority =
hash.has_key?(:authority) ? hash[:authority] : self.authority
end
if hash.has_key?(:userinfo)
uri.userinfo =
hash.has_key?(:userinfo) ? hash[:userinfo] : self.userinfo
end
if !hash.has_key?(:userinfo) && !hash.has_key?(:authority)
uri.user =
hash.has_key?(:user) ? hash[:user] : self.user
uri.password =
hash.has_key?(:password) ? hash[:password] : self.password
end
if !hash.has_key?(:authority)
uri.host =
hash.has_key?(:host) ? hash[:host] : self.host
uri.port =
hash.has_key?(:port) ? hash[:port] : self.port
end
uri.path =
hash.has_key?(:path) ? hash[:path] : self.path
uri.query =
hash.has_key?(:query) ? hash[:query] : self.query
uri.fragment =
hash.has_key?(:fragment) ? hash[:fragment] : self.fragment
end
return uri
end
##
# Destructive form of <code>merge</code>.
#
# @param [Hash, Addressable::URI, #to_hash] The components to merge with.
#
# @return [Addressable::URI] The merged URI.
#
# @see Addressable::URI#merge
def merge!(uri)
replace_self(self.merge(uri))
end
##
# Returns the shortest normalized relative form of this URI that uses the
# supplied URI as a base for resolution. Returns an absolute URI if
# necessary. This is effectively the opposite of <code>route_to</code>.
#
# @param [String, Addressable::URI, #to_str] uri The URI to route from.
#
# @return [Addressable::URI]
# The normalized relative URI that is equivalent to the original URI.
def route_from(uri)
uri = URI.parse(uri).normalize
normalized_self = self.normalize
if normalized_self.relative?
raise ArgumentError, "Expected absolute URI, got: #{self.to_s}"
end
if uri.relative?
raise ArgumentError, "Expected absolute URI, got: #{uri.to_s}"
end
if normalized_self == uri
return Addressable::URI.parse("##{normalized_self.fragment}")
end
components = normalized_self.to_hash
if normalized_self.scheme == uri.scheme
components[:scheme] = nil
if normalized_self.authority == uri.authority
components[:user] = nil
components[:password] = nil
components[:host] = nil
components[:port] = nil
if normalized_self.path == uri.path
components[:path] = nil
if normalized_self.query == uri.query
components[:query] = nil
end
else
if uri.path != SLASH
components[:path].gsub!(
Regexp.new("^" + Regexp.escape(uri.path)), EMPTY_STR)
end
end
end
end
# Avoid network-path references.
if components[:host] != nil
components[:scheme] = normalized_self.scheme
end
return Addressable::URI.new(
:scheme => components[:scheme],
:user => components[:user],
:password => components[:password],
:host => components[:host],
:port => components[:port],
:path => components[:path],
:query => components[:query],
:fragment => components[:fragment]
)
end
##
# Returns the shortest normalized relative form of the supplied URI that
# uses this URI as a base for resolution. Returns an absolute URI if
# necessary. This is effectively the opposite of <code>route_from</code>.
#
# @param [String, Addressable::URI, #to_str] uri The URI to route to.
#
# @return [Addressable::URI]
# The normalized relative URI that is equivalent to the supplied URI.
def route_to(uri)
return URI.parse(uri).route_from(self)
end
##
# Returns a normalized URI object.
#
# NOTE: This method does not attempt to fully conform to specifications.
# It exists largely to correct other people's failures to read the
# specifications, and also to deal with caching issues since several
# different URIs may represent the same resource and should not be
# cached multiple times.
#
# @return [Addressable::URI] The normalized URI.
def normalize
# This is a special exception for the frequently misused feed
# URI scheme.
if normalized_scheme == "feed"
if self.to_s =~ /^feed:\/*http:\/*/
return URI.parse(
self.to_s[/^feed:\/*(http:\/*.*)/, 1]
).normalize
end
end
return Addressable::URI.new(
:scheme => normalized_scheme,
:authority => normalized_authority,
:path => normalized_path,
:query => normalized_query,
:fragment => normalized_fragment
)
end
##
# Destructively normalizes this URI object.
#
# @return [Addressable::URI] The normalized URI.
#
# @see Addressable::URI#normalize
def normalize!
replace_self(self.normalize)
end
##
# Creates a URI suitable for display to users. If semantic attacks are
# likely, the application should try to detect these and warn the user.
# See <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986</a>,
# section 7.6 for more information.
#
# @return [Addressable::URI] A URI suitable for display purposes.
def display_uri
display_uri = self.normalize
display_uri.host = ::Addressable::IDNA.to_unicode(display_uri.host)
return display_uri
end
##
# Returns <code>true</code> if the URI objects are equal. This method
# normalizes both URIs before doing the comparison, and allows comparison
# against <code>Strings</code>.
#
# @param [Object] uri The URI to compare.
#
# @return [TrueClass, FalseClass]
# <code>true</code> if the URIs are equivalent, <code>false</code>
# otherwise.
def ===(uri)
if uri.respond_to?(:normalize)
uri_string = uri.normalize.to_s
else
begin
uri_string = ::Addressable::URI.parse(uri).normalize.to_s
rescue InvalidURIError, TypeError
return false
end
end
return self.normalize.to_s == uri_string
end
##
# Returns <code>true</code> if the URI objects are equal. This method
# normalizes both URIs before doing the comparison.
#
# @param [Object] uri The URI to compare.
#
# @return [TrueClass, FalseClass]
# <code>true</code> if the URIs are equivalent, <code>false</code>
# otherwise.
def ==(uri)
return false unless uri.kind_of?(URI)
return self.normalize.to_s == uri.normalize.to_s
end
##
# Returns <code>true</code> if the URI objects are equal. This method
# does NOT normalize either URI before doing the comparison.
#
# @param [Object] uri The URI to compare.
#
# @return [TrueClass, FalseClass]
# <code>true</code> if the URIs are equivalent, <code>false</code>
# otherwise.
def eql?(uri)
return false unless uri.kind_of?(URI)
return self.to_s == uri.to_s
end
##
# A hash value that will make a URI equivalent to its normalized
# form.
#
# @return [Integer] A hash of the URI.
def hash
return @hash ||= (self.to_s.hash * -1)
end
##
# Clones the URI object.
#
# @return [Addressable::URI] The cloned URI.
def dup
duplicated_uri = Addressable::URI.new(
:scheme => self.scheme ? self.scheme.dup : nil,
:user => self.user ? self.user.dup : nil,
:password => self.password ? self.password.dup : nil,
:host => self.host ? self.host.dup : nil,
:port => self.port,
:path => self.path ? self.path.dup : nil,
:query => self.query ? self.query.dup : nil,
:fragment => self.fragment ? self.fragment.dup : nil
)
return duplicated_uri
end
##
# Omits components from a URI.
#
# @param [Symbol] *components The components to be omitted.
#
# @return [Addressable::URI] The URI with components omitted.
#
# @example
# uri = Addressable::URI.parse("http://example.com/path?query")
# #=> #<Addressable::URI:0xcc5e7a URI:http://example.com/path?query>
# uri.omit(:scheme, :authority)
# #=> #<Addressable::URI:0xcc4d86 URI:/path?query>
def omit(*components)
invalid_components = components - [
:scheme, :user, :password, :userinfo, :host, :port, :authority,
:path, :query, :fragment
]
unless invalid_components.empty?
raise ArgumentError,
"Invalid component names: #{invalid_components.inspect}."
end
duplicated_uri = self.dup
duplicated_uri.defer_validation do
components.each do |component|
duplicated_uri.send((component.to_s + "=").to_sym, nil)
end
duplicated_uri.user = duplicated_uri.normalized_user
end
duplicated_uri
end
##
# Destructive form of omit.
#
# @param [Symbol] *components The components to be omitted.
#
# @return [Addressable::URI] The URI with components omitted.
#
# @see Addressable::URI#omit
def omit!(*components)
replace_self(self.omit(*components))
end
##
# Converts the URI to a <code>String</code>.
#
# @return [String] The URI's <code>String</code> representation.
def to_s
if self.scheme == nil && self.path != nil && !self.path.empty? &&
self.path =~ NORMPATH
raise InvalidURIError,
"Cannot assemble URI string with ambiguous path: '#{self.path}'"
end
@uri_string ||= (begin
uri_string = ""
uri_string << "#{self.scheme}:" if self.scheme != nil
uri_string << "//#{self.authority}" if self.authority != nil
uri_string << self.path.to_s
uri_string << "?#{self.query}" if self.query != nil
uri_string << "##{self.fragment}" if self.fragment != nil
if uri_string.respond_to?(:force_encoding)
uri_string.force_encoding(Encoding::UTF_8)
end
uri_string
end)
end
##
# URI's are glorified <code>Strings</code>. Allow implicit conversion.
alias_method :to_str, :to_s
##
# Returns a Hash of the URI components.
#
# @return [Hash] The URI as a <code>Hash</code> of components.
def to_hash
return {
:scheme => self.scheme,
:user => self.user,
:password => self.password,
:host => self.host,
:port => self.port,
:path => self.path,
:query => self.query,
:fragment => self.fragment
}
end
##
# Returns a <code>String</code> representation of the URI object's state.
#
# @return [String] The URI object's state, as a <code>String</code>.
def inspect
sprintf("#<%s:%#0x URI:%s>", URI.to_s, self.object_id, self.to_s)
end
##
# This method allows you to make several changes to a URI simultaneously,
# which separately would cause validation errors, but in conjunction,
# are valid. The URI will be revalidated as soon as the entire block has
# been executed.
#
# @param [Proc] block
# A set of operations to perform on a given URI.
def defer_validation(&block)
raise LocalJumpError, "No block given." unless block
@validation_deferred = true
block.call()
@validation_deferred = false
validate
return nil
end
private
SELF_REF = '.'
PARENT = '..'
RULE_2A = /\/\.\/|\/\.$/
RULE_2B_2C = /\/([^\/]*)\/\.\.\/|\/([^\/]*)\/\.\.$/
RULE_2D = /^\.\.?\/?/
RULE_PREFIXED_PARENT = /^\/\.\.?\/|^(\/\.\.?)+\/?$/
##
# Resolves paths to their simplest form.
#
# @param [String] path The path to normalize.
#
# @return [String] The normalized path.
def self.normalize_path(path)
# Section 5.2.4 of RFC 3986
return nil if path.nil?
normalized_path = path.dup
begin
mod = nil
mod ||= normalized_path.gsub!(RULE_2A, SLASH)
pair = normalized_path.match(RULE_2B_2C)
parent, current = pair[1], pair[2] if pair
if pair && ((parent != SELF_REF && parent != PARENT) ||
(current != SELF_REF && current != PARENT))
mod ||= normalized_path.gsub!(
Regexp.new(
"/#{Regexp.escape(parent.to_s)}/\\.\\./|" +
"(/#{Regexp.escape(current.to_s)}/\\.\\.$)"
), SLASH
)
end
mod ||= normalized_path.gsub!(RULE_2D, EMPTY_STR)
# Non-standard, removes prefixed dotted segments from path.
mod ||= normalized_path.gsub!(RULE_PREFIXED_PARENT, SLASH)
end until mod.nil?
return normalized_path
end
##
# Ensures that the URI is valid.
def validate
return if !!@validation_deferred
if self.scheme != nil &&
(self.host == nil || self.host.empty?) &&
(self.path == nil || self.path.empty?)
raise InvalidURIError,
"Absolute URI missing hierarchical segment: '#{self.to_s}'"
end
if self.host == nil
if self.port != nil ||
self.user != nil ||
self.password != nil
raise InvalidURIError, "Hostname not supplied: '#{self.to_s}'"
end
end
if self.path != nil && !self.path.empty? && self.path[0..0] != SLASH &&
self.authority != nil
raise InvalidURIError,
"Cannot have a relative path with an authority set: '#{self.to_s}'"
end
return nil
end
##
# Replaces the internal state of self with the specified URI's state.
# Used in destructive operations to avoid massive code repetition.
#
# @param [Addressable::URI] uri The URI to replace <code>self</code> with.
#
# @return [Addressable::URI] <code>self</code>.
def replace_self(uri)
# Reset dependant values
instance_variables.each do |var|
instance_variable_set(var, nil)
end
@scheme = uri.scheme
@user = uri.user
@password = uri.password
@host = uri.host
@port = uri.port
@path = uri.path
@query = uri.query
@fragment = uri.fragment
return self
end
end
end
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