# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Pleroma.Web.RichMedia.HelpersTest do
  use Pleroma.DataCase, async: false

  alias Pleroma.StaticStubbedConfigMock, as: ConfigMock
  alias Pleroma.Web.CommonAPI
  alias Pleroma.Web.RichMedia.Helpers

  import Mox
  import Pleroma.Factory
  import Tesla.Mock

  setup do
    mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)

    ConfigMock
    |> stub(:get, fn
      [:rich_media, :enabled] -> false
      path -> Pleroma.Test.StaticConfig.get(path)
    end)
    |> stub(:get, fn
      path, default -> Pleroma.Test.StaticConfig.get(path, default)
    end)

    :ok
  end

  test "refuses to crawl incomplete URLs" do
    user = insert(:user)

    {:ok, activity} =
      CommonAPI.post(user, %{
        status: "[test](example.com/ogp)",
        content_type: "text/markdown"
      })

    ConfigMock
    |> stub(:get, fn
      [:rich_media, :enabled] -> true
      path -> Pleroma.Test.StaticConfig.get(path)
    end)

    assert %{} == Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
  end

  test "refuses to crawl malformed URLs" do
    user = insert(:user)

    {:ok, activity} =
      CommonAPI.post(user, %{
        status: "[test](example.com[]/ogp)",
        content_type: "text/markdown"
      })

    ConfigMock
    |> stub(:get, fn
      [:rich_media, :enabled] -> true
      path -> Pleroma.Test.StaticConfig.get(path)
    end)

    assert %{} == Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
  end

  test "crawls valid, complete URLs" do
    user = insert(:user)

    {:ok, activity} =
      CommonAPI.post(user, %{
        status: "[test](https://example.com/ogp)",
        content_type: "text/markdown"
      })

    ConfigMock
    |> stub(:get, fn
      [:rich_media, :enabled] -> true
      path -> Pleroma.Test.StaticConfig.get(path)
    end)

    assert %{page_url: "https://example.com/ogp", rich_media: _} =
             Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
  end

  test "recrawls URLs on updates" do
    original_url = "https://google.com/"
    updated_url = "https://yahoo.com/"

    Pleroma.StaticStubbedConfigMock
    |> stub(:get, fn
      [:rich_media, :enabled] -> true
      path -> Pleroma.Test.StaticConfig.get(path)
    end)

    user = insert(:user)
    {:ok, activity} = CommonAPI.post(user, %{status: "I like this site #{original_url}"})

    assert match?(
             %{page_url: ^original_url, rich_media: _},
             Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
           )

    {:ok, _} = CommonAPI.update(user, activity, %{status: "I like this site #{updated_url}"})

    activity = Pleroma.Activity.get_by_id(activity.id)

    assert match?(
             %{page_url: ^updated_url, rich_media: _},
             Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
           )
  end

  test "refuses to crawl URLs of private network from posts" do
    user = insert(:user)

    {:ok, activity} =
      CommonAPI.post(user, %{status: "http://127.0.0.1:4000/notice/9kCP7VNyPJXFOXDrgO"})

    {:ok, activity2} = CommonAPI.post(user, %{status: "https://10.111.10.1/notice/9kCP7V"})
    {:ok, activity3} = CommonAPI.post(user, %{status: "https://172.16.32.40/notice/9kCP7V"})
    {:ok, activity4} = CommonAPI.post(user, %{status: "https://192.168.10.40/notice/9kCP7V"})
    {:ok, activity5} = CommonAPI.post(user, %{status: "https://pleroma.local/notice/9kCP7V"})

    ConfigMock
    |> stub(:get, fn
      [:rich_media, :enabled] -> true
      path -> Pleroma.Test.StaticConfig.get(path)
    end)

    assert %{} == Helpers.fetch_data_for_activity(activity)
    assert %{} == Helpers.fetch_data_for_activity(activity2)
    assert %{} == Helpers.fetch_data_for_activity(activity3)
    assert %{} == Helpers.fetch_data_for_activity(activity4)
    assert %{} == Helpers.fetch_data_for_activity(activity5)
  end
end