2017-05-23 00:23:04 +08:00
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require 'rails_helper'
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require 'final_destination'
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describe FinalDestination do
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let(:opts) do
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{ # avoid IP lookups in test
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lookup_ip: lambda do |host|
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case host
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when 'eviltrout.com' then '52.84.143.152'
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when 'codinghorror.com' then '91.146.108.148'
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when 'discourse.org' then '104.25.152.10'
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when 'private-host.com' then '192.168.10.1'
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else
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host
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end
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end
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}
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end
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let(:doc_response) do
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{ body: "<html>document</html>",
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headers: { "Content-Type" => "text/html" } }
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end
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def redirect_response(from, dest)
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2017-05-23 06:19:20 +08:00
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Excon.stub({ method: :head, hostname: from }, { status: 302, headers: { "Location" => dest } })
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2017-05-23 00:23:04 +08:00
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end
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describe '.resolve' do
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it "has a ready status code before anything happens" do
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expect(FinalDestination.new('https://eviltrout.com').status).to eq(:ready)
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end
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it "returns nil an invalid url" do
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expect(FinalDestination.new(nil, opts).resolve).to be_nil
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expect(FinalDestination.new('asdf', opts).resolve).to be_nil
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end
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context "without redirects" do
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before do
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2017-05-23 06:19:20 +08:00
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Excon.stub({ method: :head, hostname: 'eviltrout.com' }, doc_response)
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2017-05-23 00:23:04 +08:00
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end
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it "returns the final url" do
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fd = FinalDestination.new('https://eviltrout.com', opts)
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expect(fd.resolve.to_s).to eq('https://eviltrout.com')
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expect(fd.redirected?).to eq(false)
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expect(fd.status).to eq(:resolved)
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end
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end
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context "with a couple of redirects" do
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before do
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2017-05-23 06:19:20 +08:00
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redirect_response("eviltrout.com", "https://codinghorror.com/blog")
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redirect_response("codinghorror.com", "https://discourse.org")
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Excon.stub({ method: :head, hostname: 'discourse.org' }, doc_response)
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2017-05-23 00:23:04 +08:00
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end
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it "returns the final url" do
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fd = FinalDestination.new('https://eviltrout.com', opts)
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expect(fd.resolve.to_s).to eq('https://discourse.org')
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expect(fd.redirected?).to eq(true)
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expect(fd.status).to eq(:resolved)
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end
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end
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context "with too many redirects" do
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before do
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2017-05-23 06:19:20 +08:00
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redirect_response("eviltrout.com", "https://codinghorror.com/blog")
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redirect_response("codinghorror.com", "https://discourse.org")
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Excon.stub({ method: :head, hostname: 'discourse.org' }, doc_response)
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2017-05-23 00:23:04 +08:00
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end
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it "returns the final url" do
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fd = FinalDestination.new('https://eviltrout.com', opts.merge(max_redirects: 1))
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expect(fd.resolve).to be_nil
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expect(fd.redirected?).to eq(true)
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expect(fd.status).to eq(:too_many_redirects)
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end
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end
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context "with a redirect to an internal IP" do
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before do
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2017-05-23 06:19:20 +08:00
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redirect_response("eviltrout.com", "https://private-host.com")
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Excon.stub({ method: :head, hostname: 'private-host.com' }, doc_response)
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2017-05-23 00:23:04 +08:00
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end
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it "returns the final url" do
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fd = FinalDestination.new('https://eviltrout.com', opts)
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expect(fd.resolve).to be_nil
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expect(fd.redirected?).to eq(true)
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expect(fd.status).to eq(:invalid_address)
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end
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end
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end
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describe '.validate_uri' do
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context "host lookups" do
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it "works for various hosts" do
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expect(FinalDestination.new('https://private-host.com', opts).validate_uri).to eq(false)
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expect(FinalDestination.new('https://eviltrout.com:443', opts).validate_uri).to eq(true)
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end
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end
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end
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describe ".validate_url_format" do
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it "supports http urls" do
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expect(FinalDestination.new('http://eviltrout.com', opts).validate_uri_format).to eq(true)
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end
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it "supports https urls" do
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expect(FinalDestination.new('https://eviltrout.com', opts).validate_uri_format).to eq(true)
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end
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it "doesn't support ftp urls" do
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expect(FinalDestination.new('ftp://eviltrout.com', opts).validate_uri_format).to eq(false)
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end
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it "returns false for schemeless URL" do
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expect(FinalDestination.new('eviltrout.com', opts).validate_uri_format).to eq(false)
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end
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it "returns false for nil URL" do
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expect(FinalDestination.new(nil, opts).validate_uri_format).to eq(false)
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end
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it "returns false for invalid ports" do
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expect(FinalDestination.new('http://eviltrout.com:21', opts).validate_uri_format).to eq(false)
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expect(FinalDestination.new('https://eviltrout.com:8000', opts).validate_uri_format).to eq(false)
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end
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it "returns true for valid ports" do
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expect(FinalDestination.new('http://eviltrout.com:80', opts).validate_uri_format).to eq(true)
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expect(FinalDestination.new('https://eviltrout.com:443',opts).validate_uri_format).to eq(true)
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end
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end
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describe ".is_public" do
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it "returns false for a valid ipv4" do
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expect(FinalDestination.new("https://52.84.143.67", opts).is_public?).to eq(true)
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expect(FinalDestination.new("https://104.25.153.10", opts).is_public?).to eq(true)
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end
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it "returns true for private ipv4" do
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expect(FinalDestination.new("https://127.0.0.1", opts).is_public?).to eq(false)
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expect(FinalDestination.new("https://192.168.1.3", opts).is_public?).to eq(false)
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expect(FinalDestination.new("https://10.0.0.5", opts).is_public?).to eq(false)
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expect(FinalDestination.new("https://172.16.0.1", opts).is_public?).to eq(false)
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end
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it "returns true for public ipv6" do
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expect(FinalDestination.new("https://[2001:470:1:3a8::251]", opts).is_public?).to eq(true)
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end
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it "returns true for private ipv6" do
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expect(FinalDestination.new("https://[fdd7:b450:d4d1:6b44::1]", opts).is_public?).to eq(false)
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end
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end
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end
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