# frozen_string_literal: true

require_relative "helper"
require_relative "multifactor_auth_utilities"
require "rubygems/commands/push_command"
require "rubygems/config_file"

class TestGemCommandsPushCommand < Gem::TestCase
  def setup
    super

    credential_setup

    ENV["RUBYGEMS_HOST"] = nil
    Gem.host = Gem::DEFAULT_HOST
    Gem.configuration.disable_default_gem_server = false

    @gems_dir  = File.join @tempdir, "gems"
    @cache_dir = File.join @gemhome, "cache"

    FileUtils.mkdir @gems_dir

    Gem.configuration.rubygems_api_key =
      "ed244fbf2b1a52e012da8616c512fa47f9aa5250"

    @spec, @path = util_gem "freewill", "1.0.0"
    @host = "https://rubygems.example"
    @api_key = Gem.configuration.rubygems_api_key

    @fetcher = Gem::MultifactorAuthFetcher.new
    Gem::RemoteFetcher.fetcher = @fetcher

    @cmd = Gem::Commands::PushCommand.new

    singleton_gem_class.class_eval do
      alias_method :orig_latest_rubygems_version, :latest_rubygems_version

      def latest_rubygems_version
        Gem.rubygems_version
      end
    end
  end

  def teardown
    credential_teardown

    super

    singleton_gem_class.class_eval do
      remove_method :latest_rubygems_version
      alias_method :latest_rubygems_version, :orig_latest_rubygems_version
    end
  end

  def send_battery
    use_ui @ui do
      @cmd.instance_variable_set :@host, @host
      @cmd.send_gem(@path)
    end

    assert_match(/Pushing gem to #{@host}.../, @ui.output)

    assert_equal Gem::Net::HTTP::Post, @fetcher.last_request.class
    assert_equal Gem.read_binary(@path), @fetcher.last_request.body
    assert_equal File.size(@path), @fetcher.last_request["Content-Length"].to_i
    assert_equal "application/octet-stream", @fetcher.last_request["Content-Type"]
    assert_equal @api_key, @fetcher.last_request["Authorization"]

    assert_match @response, @ui.output
  end

  def test_execute
    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{Gem.host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")

    @cmd.options[:args] = [@path]

    @cmd.execute

    assert_equal Gem::Net::HTTP::Post, @fetcher.last_request.class
    assert_equal Gem.read_binary(@path), @fetcher.last_request.body
    assert_equal "application/octet-stream",
                 @fetcher.last_request["Content-Type"]
  end

  def test_execute_host
    host = "https://other.example"

    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
    @fetcher.data["#{Gem.host}/api/v1/gems"] =
      ["fail", 500, "Internal Server Error"]

    @cmd.options[:host] = host
    @cmd.options[:args] = [@path]

    @cmd.execute

    assert_equal Gem::Net::HTTP::Post, @fetcher.last_request.class
    assert_equal Gem.read_binary(@path), @fetcher.last_request.body
    assert_equal "application/octet-stream",
                 @fetcher.last_request["Content-Type"]
  end

  def test_execute_attestation
    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{Gem.host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")

    File.write("#{@path}.sigstore.json", "attestation")
    @cmd.options[:args] = [@path]
    @cmd.options[:attestations] = ["#{@path}.sigstore.json"]

    @cmd.execute

    assert_equal Gem::Net::HTTP::Post, @fetcher.last_request.class
    content_length = @fetcher.last_request["Content-Length"].to_i
    assert_equal content_length, @fetcher.last_request.body.length
    assert_equal "multipart", @fetcher.last_request.main_type, @fetcher.last_request.content_type
    assert_equal "form-data", @fetcher.last_request.sub_type
    assert_include @fetcher.last_request.type_params, "boundary"
    boundary = @fetcher.last_request.type_params["boundary"]

    parts = @fetcher.last_request.body.split(/(?:\r\n|\A)--#{Regexp.quote(boundary)}(?:\r\n|--)/m)
    refute_empty parts
    assert_empty parts[0]
    parts.shift # remove the first empty part

    p1 = parts.shift
    p2 = parts.shift
    assert_equal "\r\n", parts.shift
    assert_empty parts

    assert_equal [
      "Content-Disposition: form-data; name=\"gem\"; filename=\"#{@path}\"",
      "Content-Type: application/octet-stream",
      nil,
      Gem.read_binary(@path),
    ].join("\r\n").b, p1
    assert_equal [
      "Content-Disposition: form-data; name=\"attestations\"",
      nil,
      "[#{Gem.read_binary("#{@path}.sigstore.json")}]",
    ].join("\r\n").b, p2
  end

  def test_execute_allowed_push_host
    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["allowed_push_host"] = "https://privategemserver.example"
    end

    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{@spec.metadata["allowed_push_host"]}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
    @fetcher.data["#{Gem.host}/api/v1/gems"] =
      ["fail", 500, "Internal Server Error"]

    @cmd.options[:args] = [@path]

    @cmd.execute

    assert_equal Gem::Net::HTTP::Post, @fetcher.last_request.class
    assert_equal Gem.read_binary(@path), @fetcher.last_request.body
    assert_equal "application/octet-stream",
                 @fetcher.last_request["Content-Type"]
  end

  def test_sending_when_default_host_disabled
    Gem.configuration.disable_default_gem_server = true
    response = "You must specify a gem server"

    assert_raise Gem::MockGemUi::TermError do
      use_ui @ui do
        @cmd.send_gem(@path)
      end
    end

    assert_match response, @ui.error
  end

  def test_sending_when_default_host_disabled_with_override
    ENV["RUBYGEMS_HOST"] = @host
    Gem.configuration.disable_default_gem_server = true
    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")

    send_battery
  end

  def test_sending_gem_to_metadata_host
    @host = "http://privategemserver.example"

    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["default_gem_server"] = @host
    end

    @api_key = "EYKEY"

    keys = {
      :rubygems_api_key => "KEY",
      @host => @api_key,
    }

    File.open Gem.configuration.credentials_path, "w" do |f|
      f.write Gem::ConfigFile.dump_with_rubygems_yaml(keys)
    end
    Gem.configuration.load_api_keys

    FileUtils.rm Gem.configuration.credentials_path

    @response = "Successfully registered gem: freebird (1.0.1)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")

    send_battery
  end

  def test_sending_gem
    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")

    send_battery
  end

  def test_sending_gem_to_allowed_push_host
    @host = "http://privategemserver.example"

    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["allowed_push_host"] = @host
    end

    @api_key = "PRIVKEY"

    keys = {
      :rubygems_api_key => "KEY",
      @host => @api_key,
    }

    File.open Gem.configuration.credentials_path, "w" do |f|
      f.write Gem::ConfigFile.dump_with_rubygems_yaml(keys)
    end
    Gem.configuration.load_api_keys

    FileUtils.rm Gem.configuration.credentials_path

    @response = "Successfully registered gem: freebird (1.0.1)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
    send_battery
  end

  def test_sending_gem_with_env_var_api_key
    @host = "http://privategemserver.example"

    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["allowed_push_host"] = @host
    end

    @api_key = "PRIVKEY"
    ENV["GEM_HOST_API_KEY"] = "PRIVKEY"

    @response = "Successfully registered gem: freebird (1.0.1)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
    send_battery
  end

  def test_sending_gem_to_allowed_push_host_with_basic_credentials
    @sanitized_host = "http://privategemserver.example"
    @host           = "http://user:password@privategemserver.example"

    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["allowed_push_host"] = @sanitized_host
    end

    @api_key = "DOESNTMATTER"

    keys = {
      rubygems_api_key: @api_key,
    }

    File.open Gem.configuration.credentials_path, "w" do |f|
      f.write Gem::ConfigFile.dump_with_rubygems_yaml(keys)
    end
    Gem.configuration.load_api_keys

    FileUtils.rm Gem.configuration.credentials_path

    @response = "Successfully registered gem: freebird (1.0.1)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
    send_battery
  end

  def test_sending_gem_to_disallowed_default_host
    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["allowed_push_host"] = "https://privategemserver.example"
    end

    response = %(ERROR:  "#{@host}" is not allowed by the gemspec, which only allows "https://privategemserver.example")

    assert_raise Gem::MockGemUi::TermError do
      send_battery
    end

    assert_match response, @ui.error
  end

  def test_sending_gem_to_disallowed_push_host
    @host = "https://anotherprivategemserver.example"
    push_host = "https://privategemserver.example"

    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata["allowed_push_host"] = push_host
    end

    @api_key = "PRIVKEY"

    keys = {
      :rubygems_api_key => "KEY",
      @host => @api_key,
    }

    File.open Gem.configuration.credentials_path, "w" do |f|
      f.write Gem::ConfigFile.dump_with_rubygems_yaml(keys)
    end
    Gem.configuration.load_api_keys

    FileUtils.rm Gem.configuration.credentials_path

    response = "ERROR:  \"#{@host}\" is not allowed by the gemspec, which only allows \"#{push_host}\""

    assert_raise Gem::MockGemUi::TermError do
      send_battery
    end

    assert_match response, @ui.error
  end

  def test_sending_gem_defaulting_to_allowed_push_host
    host = "http://privategemserver.example"

    @spec, @path = util_gem "freebird", "1.0.1" do |spec|
      spec.metadata.delete("default_gem_server")
      spec.metadata["allowed_push_host"] = host
    end

    api_key = "PRIVKEY"

    keys = {
      host => api_key,
    }

    File.open Gem.configuration.credentials_path, "w" do |f|
      f.write Gem::ConfigFile.dump_with_rubygems_yaml(keys)
    end
    Gem.configuration.load_api_keys

    FileUtils.rm Gem.configuration.credentials_path

    @response = "Successfully registered gem: freebird (1.0.1)"
    @fetcher.data["#{host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")

    # do not set @host
    use_ui(@ui) { @cmd.send_gem(@path) }

    assert_match(/Pushing gem to #{host}.../, @ui.output)

    assert_equal Gem::Net::HTTP::Post, @fetcher.last_request.class
    assert_equal Gem.read_binary(@path), @fetcher.last_request.body
    assert_equal File.size(@path), @fetcher.last_request["Content-Length"].to_i
    assert_equal "application/octet-stream", @fetcher.last_request["Content-Type"]
    assert_equal api_key, @fetcher.last_request["Authorization"]

    assert_match @response, @ui.output
  end

  def test_sending_gem_to_host_permanent_redirect
    @host = "http://rubygems.example"
    redirected_uri = "https://rubygems.example/api/v1/gems"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(
      body: "",
      code: 308,
      msg: "Permanent Redirect",
      headers: { "Location" => redirected_uri }
    )

    assert_raise Gem::MockGemUi::TermError do
      use_ui @ui do
        @cmd.instance_variable_set :@host, @host
        @cmd.send_gem(@path)
      end
    end

    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
    assert_match response, @ui.output
  end

  def test_raises_error_with_no_arguments
    def @cmd.sign_in(*); end
    assert_raise Gem::CommandLineError do
      @cmd.execute
    end
  end

  def test_sending_gem_denied
    response = "You don't have permission to push to this gem"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: response, code: 403, msg: "Forbidden")
    @cmd.instance_variable_set :@host, @host

    assert_raise Gem::MockGemUi::TermError do
      use_ui @ui do
        @cmd.send_gem(@path)
      end
    end

    assert_match response, @ui.output
  end

  def test_sending_gem_key
    @response = "Successfully registered gem: freewill (1.0.0)"
    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
    File.open Gem.configuration.credentials_path, "a" do |f|
      f.write ":other: 701229f217cdf23b1344c7b4b54ca97"
    end
    Gem.configuration.load_api_keys

    @cmd.handle_options %w[-k other]
    @cmd.instance_variable_set :@host, @host
    @cmd.send_gem(@path)

    assert_equal Gem.configuration.api_keys[:other],
                 @fetcher.last_request["Authorization"]
  end

  def test_otp_verified_success
    response_success = "Successfully registered gem: freewill (1.0.0)"

    @fetcher.respond_with_require_otp("#{Gem.host}/api/v1/gems", response_success)

    @otp_ui = Gem::MockGemUi.new "111111\n"
    use_ui @otp_ui do
      @cmd.send_gem(@path)
    end

    assert_match "You have enabled multi-factor authentication. Please enter OTP code.", @otp_ui.output
    assert_match "Code: ", @otp_ui.output
    assert_match response_success, @otp_ui.output
    assert_equal "111111", @fetcher.last_request["OTP"]
  end

  def test_otp_verified_failure
    response = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
    @fetcher.data["#{Gem.host}/api/v1/gems"] = HTTPResponseFactory.create(body: response, code: 401, msg: "Unauthorized")
    @fetcher.data["#{Gem.host}/api/v1/webauthn_verification"] =
      HTTPResponseFactory.create(body: "You don't have any security devices", code: 422, msg: "Unprocessable Entity")

    @otp_ui = Gem::MockGemUi.new "111111\n"
    assert_raise Gem::MockGemUi::TermError do
      use_ui @otp_ui do
        @cmd.send_gem(@path)
      end
    end

    assert_match response, @otp_ui.output
    assert_match "You have enabled multi-factor authentication. Please enter OTP code.", @otp_ui.output
    assert_match "Code: ", @otp_ui.output
    assert_equal "111111", @fetcher.last_request["OTP"]
  end

  def test_with_webauthn_enabled_success
    response_success = "Successfully registered gem: freewill (1.0.0)"
    server = Gem::MockTCPServer.new

    @fetcher.respond_with_require_otp("#{Gem.host}/api/v1/gems", response_success)
    @fetcher.respond_with_webauthn_url

    TCPServer.stub(:new, server) do
      Gem::GemcutterUtilities::WebauthnListener.stub(:listener_thread, Thread.new { Thread.current[:otp] = "Uvh6T57tkWuUnWYo" }) do
        use_ui @ui do
          @cmd.send_gem(@path)
        end
      end
    end

    assert_match "You have enabled multi-factor authentication. Please visit the following URL " \
      "to authenticate via security device. If you can't verify using WebAuthn but have OTP enabled, " \
      "you can re-run the gem signin command with the `--otp [your_code]` option.", @ui.output
    assert_match @fetcher.webauthn_url_with_port(server.port), @ui.output
    assert_match "You are verified with a security device. You may close the browser window.", @ui.output
    assert_equal "Uvh6T57tkWuUnWYo", @fetcher.last_request["OTP"]
    assert_match response_success, @ui.output
  end

  def test_with_webauthn_enabled_failure
    response_success = "Successfully registered gem: freewill (1.0.0)"
    server = Gem::MockTCPServer.new
    error = Gem::WebauthnVerificationError.new("Something went wrong")

    @fetcher.respond_with_require_otp("#{Gem.host}/api/v1/gems", response_success)
    @fetcher.respond_with_webauthn_url

    error = assert_raise Gem::MockGemUi::TermError do
      TCPServer.stub(:new, server) do
        Gem::GemcutterUtilities::WebauthnListener.stub(:listener_thread, Thread.new { Thread.current[:error] = error }) do
          use_ui @ui do
            @cmd.send_gem(@path)
          end
        end
      end
    end
    assert_equal 1, error.exit_code

    assert_match @fetcher.last_request["Authorization"], Gem.configuration.rubygems_api_key
    assert_match "You have enabled multi-factor authentication. Please visit the following URL " \
      "to authenticate via security device. If you can't verify using WebAuthn but have OTP enabled, " \
      "you can re-run the gem signin command with the `--otp [your_code]` option.", @ui.output
    assert_match @fetcher.webauthn_url_with_port(server.port), @ui.output
    assert_match "ERROR:  Security device verification failed: Something went wrong", @ui.error
    refute_match "You are verified with a security device. You may close the browser window.", @ui.output
    refute_match response_success, @ui.output
  end

  def test_with_webauthn_enabled_success_with_polling
    response_success = "Successfully registered gem: freewill (1.0.0)"
    server = Gem::MockTCPServer.new

    @fetcher.respond_with_require_otp("#{Gem.host}/api/v1/gems", response_success)
    @fetcher.respond_with_webauthn_url
    @fetcher.respond_with_webauthn_polling("Uvh6T57tkWuUnWYo")

    TCPServer.stub(:new, server) do
      use_ui @ui do
        @cmd.send_gem(@path)
      end
    end

    assert_match "You have enabled multi-factor authentication. Please visit the following URL " \
      "to authenticate via security device. If you can't verify using WebAuthn but have OTP enabled, " \
      "you can re-run the gem signin command with the `--otp [your_code]` option.", @ui.output
    assert_match @fetcher.webauthn_url_with_port(server.port), @ui.output
    assert_match "You are verified with a security device. You may close the browser window.", @ui.output
    assert_equal "Uvh6T57tkWuUnWYo", @fetcher.last_request["OTP"]
    assert_match response_success, @ui.output
  end

  def test_with_webauthn_enabled_failure_with_polling
    response_success = "Successfully registered gem: freewill (1.0.0)"
    server = Gem::MockTCPServer.new

    @fetcher.respond_with_require_otp("#{Gem.host}/api/v1/gems", response_success)
    @fetcher.respond_with_webauthn_url
    @fetcher.respond_with_webauthn_polling_failure

    error = assert_raise Gem::MockGemUi::TermError do
      TCPServer.stub(:new, server) do
        use_ui @ui do
          @cmd.send_gem(@path)
        end
      end
    end
    assert_equal 1, error.exit_code

    assert_match @fetcher.last_request["Authorization"], Gem.configuration.rubygems_api_key
    assert_match "You have enabled multi-factor authentication. Please visit the following URL " \
      "to authenticate via security device. If you can't verify using WebAuthn but have OTP enabled, " \
      "you can re-run the gem signin command with the `--otp [your_code]` option.", @ui.output
    assert_match @fetcher.webauthn_url_with_port(server.port), @ui.output
    assert_match "ERROR:  Security device verification failed: The token in the link you used has either expired " \
      "or been used already.", @ui.error
    refute_match "You are verified with a security device. You may close the browser window.", @ui.output
    refute_match response_success, @ui.output
  end

  def test_sending_gem_unathorized_api_key_with_mfa_enabled
    response_mfa_enabled = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
    response_forbidden = "The API key doesn't have access"
    response_success   = "Successfully registered gem: freewill (1.0.0)"

    @fetcher.data["#{@host}/api/v1/gems"] = [
      HTTPResponseFactory.create(body: response_mfa_enabled, code: 401, msg: "Unauthorized"),
      HTTPResponseFactory.create(body: response_forbidden, code: 403, msg: "Forbidden"),
      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
    ]
    @fetcher.data["#{@host}/api/v1/webauthn_verification"] =
      HTTPResponseFactory.create(body: "You don't have any security devices", code: 422, msg: "Unprocessable Entity")

    @fetcher.data["#{@host}/api/v1/api_key"] = HTTPResponseFactory.create(body: "", code: 200, msg: "OK")
    @cmd.instance_variable_set :@host, @host
    @cmd.instance_variable_set :@scope, :push_rubygem

    @ui = Gem::MockGemUi.new "11111\nsome@mail.com\npass\n"
    use_ui @ui do
      @cmd.send_gem(@path)
    end

    mfa_notice = "You have enabled multi-factor authentication. Please enter OTP code."
    access_notice = "The existing key doesn't have access of push_rubygem on https://rubygems.example. Please sign in to update access."
    assert_match mfa_notice, @ui.output
    assert_match access_notice, @ui.output
    assert_match "Username/email:", @ui.output
    assert_match "Password:", @ui.output
    assert_match "Added push_rubygem scope to the existing API key", @ui.output
    assert_match response_success, @ui.output
    assert_equal "11111", @fetcher.last_request["OTP"]
  end

  def test_sending_gem_with_no_local_creds
    Gem.configuration.rubygems_api_key = nil

    response_mfa_enabled = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
    response_success     = "Successfully registered gem: freewill (1.0.0)"
    response_profile     = "mfa: disabled\n"

    @fetcher.data["#{@host}/api/v1/gems"] = [
      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
    ]

    @fetcher.data["#{@host}/api/v1/api_key"] = [
      HTTPResponseFactory.create(body: response_mfa_enabled, code: 401, msg: "Unauthorized"),
      HTTPResponseFactory.create(body: "", code: 200, msg: "OK"),
    ]

    @fetcher.data["#{@host}/api/v1/profile/me.yaml"] = [
      HTTPResponseFactory.create(body: response_profile, code: 200, msg: "OK"),
    ]
    @fetcher.data["#{@host}/api/v1/webauthn_verification"] =
      HTTPResponseFactory.create(body: "You don't have any security devices", code: 422, msg: "Unprocessable Entity")

    @cmd.instance_variable_set :@scope, :push_rubygem
    @cmd.options[:args] = [@path]
    @cmd.options[:host] = @host

    @ui = Gem::MockGemUi.new "some@mail.com\npass\n11111\n"
    use_ui @ui do
      @cmd.execute
    end

    mfa_notice = "You have enabled multi-factor authentication. Please enter OTP code."
    assert_match mfa_notice, @ui.output
    assert_match "Enter your https://rubygems.example credentials.", @ui.output
    assert_match "Username/email:", @ui.output
    assert_match "Password:", @ui.output
    assert_match "Signed in with API key:", @ui.output
    assert_match response_success, @ui.output
    assert_equal "11111", @fetcher.last_request["OTP"]
  end

  private

  def singleton_gem_class
    class << Gem; self; end
  end
end