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RSpec.describe HTTP::Redirector do
def simple_response(status, body = "", headers = {})
HTTP::Response.new(
:status => status,
:version => "1.1",
:headers => headers,
:body => body
)
end
def redirect_response(status, location)
simple_response status, "", "Location" => location
end
describe "#strict" do
subject { redirector.strict }
context "by default" do
let(:redirector) { described_class.new }
it { is_expected.to be true }
end
end
describe "#max_hops" do
subject { redirector.max_hops }
context "by default" do
let(:redirector) { described_class.new }
it { is_expected.to eq 5 }
end
end
describe "#perform" do
let(:options) { {} }
let(:redirector) { described_class.new options }
it "fails with TooManyRedirectsError if max hops reached" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = proc { |prev_req| redirect_response(301, "#{prev_req.uri}/1") }
expect { redirector.perform(req, res.call(req), &res) }.
to raise_error HTTP::Redirector::TooManyRedirectsError
end
it "fails with EndlessRedirectError if endless loop detected" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response(301, req.uri)
expect { redirector.perform(req, res) { res } }.
to raise_error HTTP::Redirector::EndlessRedirectError
end
it "fails with StateError if there were no Location header" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = simple_response(301)
expect { |b| redirector.perform(req, res, &b) }.
to raise_error HTTP::StateError
end
it "returns first non-redirect response" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
hops = [
redirect_response(301, "http://example.com/1"),
redirect_response(301, "http://example.com/2"),
redirect_response(301, "http://example.com/3"),
simple_response(200, "foo"),
redirect_response(301, "http://example.com/4"),
simple_response(200, "bar")
]
res = redirector.perform(req, hops.shift) { hops.shift }
expect(res.to_s).to eq "foo"
end
context "following 300 redirect" do
context "with strict mode" do
let(:options) { {:strict => true} }
it "it follows with original verb if it's safe" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "raises StateError if original request was PUT" do
req = HTTP::Request.new :verb => :put, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
it "raises StateError if original request was POST" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
it "raises StateError if original request was DELETE" do
req = HTTP::Request.new :verb => :delete, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
end
context "with non-strict mode" do
let(:options) { {:strict => false} }
it "it follows with original verb if it's safe" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "it follows with GET if original request was PUT" do
req = HTTP::Request.new :verb => :put, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "it follows with GET if original request was POST" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "it follows with GET if original request was DELETE" do
req = HTTP::Request.new :verb => :delete, :uri => "http://example.com"
res = redirect_response 300, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
end
end
context "following 301 redirect" do
context "with strict mode" do
let(:options) { {:strict => true} }
it "it follows with original verb if it's safe" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "raises StateError if original request was PUT" do
req = HTTP::Request.new :verb => :put, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
it "raises StateError if original request was POST" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
it "raises StateError if original request was DELETE" do
req = HTTP::Request.new :verb => :delete, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
end
context "with non-strict mode" do
let(:options) { {:strict => false} }
it "it follows with original verb if it's safe" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "it follows with GET if original request was PUT" do
req = HTTP::Request.new :verb => :put, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "it follows with GET if original request was POST" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "it follows with GET if original request was DELETE" do
req = HTTP::Request.new :verb => :delete, :uri => "http://example.com"
res = redirect_response 301, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
end
end
context "following 302 redirect" do
context "with strict mode" do
let(:options) { {:strict => true} }
it "it follows with original verb if it's safe" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "raises StateError if original request was PUT" do
req = HTTP::Request.new :verb => :put, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
it "raises StateError if original request was POST" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
it "raises StateError if original request was DELETE" do
req = HTTP::Request.new :verb => :delete, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
expect { redirector.perform(req, res) { simple_response 200 } }.
to raise_error HTTP::StateError
end
end
context "with non-strict mode" do
let(:options) { {:strict => false} }
it "it follows with original verb if it's safe" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "it follows with GET if original request was PUT" do
req = HTTP::Request.new :verb => :put, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "it follows with GET if original request was POST" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "it follows with GET if original request was DELETE" do
req = HTTP::Request.new :verb => :delete, :uri => "http://example.com"
res = redirect_response 302, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
end
end
context "following 303 redirect" do
it "follows with HEAD if original request was HEAD" do
req = HTTP::Request.new :verb => :head, :uri => "http://example.com"
res = redirect_response 303, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :head
simple_response 200
end
end
it "follows with GET if original request was GET" do
req = HTTP::Request.new :verb => :get, :uri => "http://example.com"
res = redirect_response 303, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
it "follows with GET if original request was neither GET nor HEAD" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 303, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :get
simple_response 200
end
end
end
context "following 307 redirect" do
it "follows with original request's verb" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 307, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :post
simple_response 200
end
end
end
context "following 308 redirect" do
it "follows with original request's verb" do
req = HTTP::Request.new :verb => :post, :uri => "http://example.com"
res = redirect_response 308, "http://example.com/1"
redirector.perform(req, res) do |prev_req, _|
expect(prev_req.verb).to be :post
simple_response 200
end
end
end
end
end
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