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# frozen_string_literal: true
require "abstract_unit"
require "ipaddr"
class HostAuthorizationTest < ActionDispatch::IntegrationTest
App = -> env { [200, {}, %w(Success)] }
test "blocks requests to unallowed host" do
@app = ActionDispatch::HostAuthorization.new(App, %w(only.com))
get "/"
assert_response :forbidden
assert_match "Blocked host: www.example.com", response.body
end
test "allows all requests if hosts is empty" do
@app = ActionDispatch::HostAuthorization.new(App, nil)
get "/"
assert_response :ok
assert_equal "Success", body
end
test "hosts can be a single element array" do
@app = ActionDispatch::HostAuthorization.new(App, %w(www.example.com))
get "/"
assert_response :ok
assert_equal "Success", body
end
test "hosts can be a string" do
@app = ActionDispatch::HostAuthorization.new(App, "www.example.com")
get "/"
assert_response :ok
assert_equal "Success", body
end
test "passes requests to allowed hosts with domain name notation" do
@app = ActionDispatch::HostAuthorization.new(App, ".example.com")
get "/"
assert_response :ok
assert_equal "Success", body
end
test "does not allow domain name notation in the HOST header itself" do
@app = ActionDispatch::HostAuthorization.new(App, ".example.com")
get "/", env: {
"HOST" => ".example.com",
}
assert_response :forbidden
assert_match "Blocked host: .example.com", response.body
end
test "checks for requests with #=== to support wider range of host checks" do
@app = ActionDispatch::HostAuthorization.new(App, [-> input { input == "www.example.com" }])
get "/"
assert_response :ok
assert_equal "Success", body
end
test "mark the host when authorized" do
@app = ActionDispatch::HostAuthorization.new(App, ".example.com")
get "/"
assert_equal "www.example.com", request.get_header("action_dispatch.authorized_host")
end
test "sanitizes regular expressions to prevent accidental matches" do
@app = ActionDispatch::HostAuthorization.new(App, [/w.example.co/])
get "/"
assert_response :forbidden
assert_match "Blocked host: www.example.com", response.body
end
test "blocks requests to unallowed host supporting custom responses" do
@app = ActionDispatch::HostAuthorization.new(App, ["w.example.co"], -> env do
[401, {}, %w(Custom)]
end)
get "/"
assert_response :unauthorized
assert_equal "Custom", body
end
test "blocks requests with spoofed X-FORWARDED-HOST" do
@app = ActionDispatch::HostAuthorization.new(App, [IPAddr.new("127.0.0.1")])
get "/", env: {
"HTTP_X_FORWARDED_HOST" => "127.0.0.1",
"HOST" => "www.example.com",
}
assert_response :forbidden
assert_match "Blocked host: 127.0.0.1", response.body
end
test "does not consider IP addresses in X-FORWARDED-HOST spoofed when disabled" do
@app = ActionDispatch::HostAuthorization.new(App, nil)
get "/", env: {
"HTTP_X_FORWARDED_HOST" => "127.0.0.1",
"HOST" => "www.example.com",
}
assert_response :ok
assert_equal "Success", body
end
test "detects localhost domain spoofing" do
@app = ActionDispatch::HostAuthorization.new(App, "localhost")
get "/", env: {
"HTTP_X_FORWARDED_HOST" => "localhost",
"HOST" => "www.example.com",
}
assert_response :forbidden
assert_match "Blocked host: localhost", response.body
end
test "forwarded hosts should be permitted" do
@app = ActionDispatch::HostAuthorization.new(App, "domain.com")
get "/", env: {
"HTTP_X_FORWARDED_HOST" => "sub.domain.com",
"HOST" => "domain.com",
}
assert_response :forbidden
assert_match "Blocked host: sub.domain.com", response.body
end
test "forwarded hosts are allowed when permitted" do
@app = ActionDispatch::HostAuthorization.new(App, ".domain.com")
get "/", env: {
"HTTP_X_FORWARDED_HOST" => "sub.domain.com",
"HOST" => "domain.com",
}
assert_response :ok
assert_equal "Success", body
end
end
|
