Merge pull request from GHSA-hcqf-fw2r-52g4
* Revert "Fix request URL normalisation for bare domain and 8-bit characters (#26285)" This reverts commit8891d8945d. * Revert "Do not normalize URL before fetching it (#26219)" This reverts commitfd284311e7.
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Claire
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3 changed files with 4 additions and 202 deletions
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@ -68,26 +68,13 @@ class Request
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# about 15s in total
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TIMEOUT = { connect_timeout: 5, read_timeout: 10, write_timeout: 10, read_deadline: 30 }.freeze
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# Workaround for overly-eager decoding of percent-encoded characters in Addressable::URI#normalized_path
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# https://github.com/sporkmonger/addressable/issues/366
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URI_NORMALIZER = lambda do |uri|
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uri = HTTP::URI.parse(uri)
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HTTP::URI.new(
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scheme: uri.normalized_scheme,
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authority: uri.normalized_authority,
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path: Addressable::URI.normalize_path(encode_non_ascii(uri.path)).presence || '/',
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query: encode_non_ascii(uri.query)
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)
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end
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include RoutingHelper
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def initialize(verb, url, **options)
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raise ArgumentError if url.blank?
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@verb = verb
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@url = URI_NORMALIZER.call(url)
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@url = Addressable::URI.parse(url).normalize
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@http_client = options.delete(:http_client)
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@allow_local = options.delete(:allow_local)
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@options = options.merge(socket_class: use_proxy? || @allow_local ? ProxySocket : Socket)
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@ -151,14 +138,8 @@ class Request
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%w(http https).include?(parsed_url.scheme) && parsed_url.host.present?
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end
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NON_ASCII_PATTERN = /[^\x00-\x7F]+/
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def encode_non_ascii(str)
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str&.gsub(NON_ASCII_PATTERN) { |substr| CGI.escape(substr.encode(Encoding::UTF_8)) }
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end
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def http_client
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HTTP.use(:auto_inflate).use(normalize_uri: { normalizer: URI_NORMALIZER }).follow(max_hops: 3)
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HTTP.use(:auto_inflate).follow(max_hops: 3)
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end
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end
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@ -129,37 +129,6 @@ describe SignatureVerification do
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end
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end
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context 'with non-normalized URL' do
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before do
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get :success
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fake_request = Request.new(:get, 'http://test.host/subdir/../success')
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fake_request.on_behalf_of(author)
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request.headers.merge!(fake_request.headers)
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allow(controller).to receive(:actor_refresh_key!).and_return(author)
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end
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describe '#build_signed_string' do
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it 'includes the normalized request path' do
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expect(controller.send(:build_signed_string)).to start_with "(request-target): get /success\n"
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end
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end
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describe '#signed_request?' do
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it 'returns true' do
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expect(controller.signed_request?).to be true
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end
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end
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describe '#signed_request_actor' do
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it 'returns an account' do
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expect(controller.signed_request_account).to eq author
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end
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end
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end
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context 'with request with unparsable Date header' do
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before do
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get :success
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@ -233,7 +202,7 @@ describe SignatureVerification do
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request.headers.merge!(fake_request.headers)
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stub_request(:get, 'http://localhost:5000/actor').to_raise(Mastodon::HostValidationError)
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stub_request(:get, 'http://localhost:5000/actor#main-key').to_raise(Mastodon::HostValidationError)
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end
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describe '#signed_request?' do
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@ -4,9 +4,7 @@ require 'rails_helper'
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require 'securerandom'
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describe Request do
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subject { described_class.new(:get, url) }
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let(:url) { 'http://example.com' }
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subject { described_class.new(:get, 'http://example.com') }
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describe '#headers' do
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it 'returns user agent' do
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@ -94,152 +92,6 @@ describe Request do
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expect { subject.perform }.to raise_error Mastodon::ValidationError
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end
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end
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context 'with bare domain URL' do
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let(:url) { 'http://example.com' }
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before do
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stub_request(:get, 'http://example.com')
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end
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it 'normalizes path' do
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subject.perform do |response|
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expect(response.request.uri.path).to eq '/'
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end
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end
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it 'normalizes path used for request signing' do
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subject.perform
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headers = subject.instance_variable_get(:@headers)
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expect(headers[Request::REQUEST_TARGET]).to eq 'get /'
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end
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it 'normalizes path used in request line' do
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subject.perform do |response|
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expect(response.request.headline).to eq 'GET / HTTP/1.1'
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end
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end
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end
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context 'with unnormalized URL' do
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let(:url) { 'HTTP://EXAMPLE.com:80/foo%41%3A?bar=%41%3A#baz' }
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before do
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stub_request(:get, 'http://example.com/foo%41%3A?bar=%41%3A')
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end
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it 'normalizes scheme' do
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subject.perform do |response|
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expect(response.request.uri.scheme).to eq 'http'
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end
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end
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it 'normalizes host' do
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subject.perform do |response|
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expect(response.request.uri.authority).to eq 'example.com'
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end
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end
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it 'does not modify path' do
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subject.perform do |response|
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expect(response.request.uri.path).to eq '/foo%41%3A'
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end
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end
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it 'does not modify query string' do
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subject.perform do |response|
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expect(response.request.uri.query).to eq 'bar=%41%3A'
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end
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end
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it 'does not modify path used for request signing' do
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subject.perform
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headers = subject.instance_variable_get(:@headers)
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expect(headers[Request::REQUEST_TARGET]).to eq 'get /foo%41%3A'
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end
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it 'does not modify path used in request line' do
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subject.perform do |response|
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expect(response.request.headline).to eq 'GET /foo%41%3A?bar=%41%3A HTTP/1.1'
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end
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end
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it 'strips fragment' do
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subject.perform do |response|
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expect(response.request.uri.fragment).to be_nil
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end
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end
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end
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context 'with non-ASCII URL' do
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let(:url) { 'http://éxample.com:81/föo?bär=1' }
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before do
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stub_request(:get, 'http://xn--xample-9ua.com:81/f%C3%B6o?b%C3%A4r=1')
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end
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it 'IDN-encodes host' do
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subject.perform do |response|
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expect(response.request.uri.authority).to eq 'xn--xample-9ua.com:81'
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end
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end
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it 'IDN-encodes host in Host header' do
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subject.perform do |response|
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expect(response.request.headers['Host']).to eq 'xn--xample-9ua.com'
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end
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end
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it 'percent-escapes path used for request signing' do
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subject.perform
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headers = subject.instance_variable_get(:@headers)
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expect(headers[Request::REQUEST_TARGET]).to eq 'get /f%C3%B6o'
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end
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it 'normalizes path used in request line' do
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subject.perform do |response|
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expect(response.request.headline).to eq 'GET /f%C3%B6o?b%C3%A4r=1 HTTP/1.1'
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end
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end
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end
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context 'with redirecting URL' do
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let(:url) { 'http://example.com/foo' }
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before do
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stub_request(:get, 'http://example.com/foo').to_return(status: 302, headers: { 'Location' => 'HTTPS://EXAMPLE.net/Bar' })
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stub_request(:get, 'https://example.net/Bar').to_return(body: 'Lorem ipsum')
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end
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it 'resolves redirect' do
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subject.perform do |response|
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expect(response.body.to_s).to eq 'Lorem ipsum'
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end
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expect(a_request(:get, 'https://example.net/Bar')).to have_been_made
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end
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it 'normalizes destination scheme' do
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subject.perform do |response|
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expect(response.request.uri.scheme).to eq 'https'
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end
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end
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it 'normalizes destination host' do
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subject.perform do |response|
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expect(response.request.uri.authority).to eq 'example.net'
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end
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end
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it 'does modify path' do
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subject.perform do |response|
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expect(response.request.uri.path).to eq '/Bar'
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end
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end
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end
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end
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describe "response's body_with_limit method" do
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