diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex index db510d957..911dde6e2 100644 --- a/lib/pleroma/user.ex +++ b/lib/pleroma/user.ex @@ -16,6 +16,7 @@ defmodule Pleroma.User do alias Pleroma.Conversation.Participation alias Pleroma.Delivery alias Pleroma.FollowingRelationship + alias Pleroma.HTML alias Pleroma.Keys alias Pleroma.Notification alias Pleroma.Object @@ -2032,4 +2033,27 @@ def set_invisible(user, invisible) do |> validate_required([:invisible]) |> update_and_set_cache() end + + def sanitize_html(%User{} = user) do + sanitize_html(user, nil) + end + + # User data that mastodon isn't filtering (treated as plaintext): + # - field name + # - display name + def sanitize_html(%User{} = user, filter) do + fields = + user + |> User.fields() + |> Enum.map(fn %{"name" => name, "value" => value} -> + %{ + "name" => name, + "value" => HTML.filter_tags(value, Pleroma.HTML.Scrubber.LinksOnly) + } + end) + + user + |> Map.put(:bio, HTML.filter_tags(user.bio, filter)) + |> Map.put(:fields, fields) + end end diff --git a/lib/pleroma/web/activity_pub/views/user_view.ex b/lib/pleroma/web/activity_pub/views/user_view.ex index c0358b678..bc21ac6c7 100644 --- a/lib/pleroma/web/activity_pub/views/user_view.ex +++ b/lib/pleroma/web/activity_pub/views/user_view.ex @@ -73,6 +73,7 @@ def render("user.json", %{user: user}) do {:ok, _, public_key} = Keys.keys_from_pem(user.keys) public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key) public_key = :public_key.pem_encode([public_key]) + user = User.sanitize_html(user) endpoints = render("endpoints.json", %{user: user}) @@ -81,12 +82,6 @@ def render("user.json", %{user: user}) do fields = user |> User.fields() - |> Enum.map(fn %{"name" => name, "value" => value} -> - %{ - "name" => Pleroma.HTML.strip_tags(name), - "value" => Pleroma.HTML.filter_tags(value, Pleroma.HTML.Scrubber.LinksOnly) - } - end) |> Enum.map(&Map.put(&1, "type", "PropertyValue")) %{ diff --git a/lib/pleroma/web/admin_api/views/account_view.ex b/lib/pleroma/web/admin_api/views/account_view.ex index 619390ef4..1e03849de 100644 --- a/lib/pleroma/web/admin_api/views/account_view.ex +++ b/lib/pleroma/web/admin_api/views/account_view.ex @@ -5,7 +5,6 @@ defmodule Pleroma.Web.AdminAPI.AccountView do use Pleroma.Web, :view - alias Pleroma.HTML alias Pleroma.User alias Pleroma.Web.AdminAPI.AccountView alias Pleroma.Web.MediaProxy @@ -26,7 +25,8 @@ def render("index.json", %{users: users}) do def render("show.json", %{user: user}) do avatar = User.avatar_url(user) |> MediaProxy.url() - display_name = HTML.strip_tags(user.name || user.nickname) + display_name = Pleroma.HTML.strip_tags(user.name || user.nickname) + user = User.sanitize_html(user, FastSanitize.Sanitizer.StripTags) %{ "id" => user.id, diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex index 6dc191250..341dc2c91 100644 --- a/lib/pleroma/web/mastodon_api/views/account_view.ex +++ b/lib/pleroma/web/mastodon_api/views/account_view.ex @@ -5,7 +5,6 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do use Pleroma.Web, :view - alias Pleroma.HTML alias Pleroma.User alias Pleroma.Web.CommonAPI.Utils alias Pleroma.Web.MastodonAPI.AccountView @@ -67,6 +66,7 @@ def render("relationships.json", %{user: user, targets: targets}) do end defp do_render("show.json", %{user: user} = opts) do + user = User.sanitize_html(user, User.html_filter_policy(opts[:for])) display_name = user.name || user.nickname image = User.avatar_url(user) |> MediaProxy.url() @@ -100,17 +100,6 @@ defp do_render("show.json", %{user: user} = opts) do } end) - fields = - user - |> User.fields() - |> Enum.map(fn %{"name" => name, "value" => value} -> - %{ - "name" => name, - "value" => Pleroma.HTML.filter_tags(value, Pleroma.HTML.Scrubber.LinksOnly) - } - end) - - bio = HTML.filter_tags(user.bio, User.html_filter_policy(opts[:for])) relationship = render("relationship.json", %{user: opts[:for], target: user}) %{ @@ -123,17 +112,17 @@ defp do_render("show.json", %{user: user} = opts) do followers_count: followers_count, following_count: following_count, statuses_count: user.note_count, - note: bio || "", + note: user.bio || "", url: User.profile_url(user), avatar: image, avatar_static: image, header: header, header_static: header, emojis: emojis, - fields: fields, + fields: user.fields, bot: bot, source: %{ - note: HTML.strip_tags((user.bio || "") |> String.replace("
", "\n")), + note: Pleroma.HTML.strip_tags((user.bio || "") |> String.replace("
", "\n")), sensitive: false, fields: user.raw_fields, pleroma: %{ diff --git a/lib/pleroma/web/static_fe/static_fe_controller.ex b/lib/pleroma/web/static_fe/static_fe_controller.ex index 5027d5c23..7f9464268 100644 --- a/lib/pleroma/web/static_fe/static_fe_controller.ex +++ b/lib/pleroma/web/static_fe/static_fe_controller.ex @@ -58,10 +58,17 @@ defp represent(%Activity{object: %Object{data: data}} = activity, selected) do _ -> data["url"] || data["external_url"] || data["id"] end + content = + if data["content"] do + Pleroma.HTML.filter_tags(data["content"]) + else + nil + end + %{ - user: user, + user: User.sanitize_html(user), title: get_title(activity.object), - content: data["content"] || nil, + content: content, attachment: data["attachment"], link: link, published: data["published"], @@ -113,7 +120,7 @@ def show(%{assigns: %{username_or_id: username_or_id}} = conn, params) do next_page_id = List.last(timeline) && List.last(timeline).id render(conn, "profile.html", %{ - user: user, + user: User.sanitize_html(user), timeline: timeline, prev_page_id: prev_page_id, next_page_id: next_page_id, diff --git a/mix.lock b/mix.lock index 1b4fbc927..62e14924a 100644 --- a/mix.lock +++ b/mix.lock @@ -4,10 +4,10 @@ "base62": {:hex, :base62, "1.2.1", "4866763e08555a7b3917064e9eef9194c41667276c51b59de2bc42c6ea65f806", [:mix], [{:custom_base, "~> 0.2.1", [hex: :custom_base, repo: "hexpm", optional: false]}], "hexpm", "3b29948de2013d3f93aa898c884a9dff847e7aec75d9d6d8c1dc4c61c2716c42"}, "base64url": {:hex, :base64url, "0.0.1", "36a90125f5948e3afd7be97662a1504b934dd5dac78451ca6e9abf85a10286be", [:rebar], [], "hexpm"}, "bbcode": {:git, "https://git.pleroma.social/pleroma/elixir-libraries/bbcode.git", "f2d267675e9a7e1ad1ea9beb4cc23382762b66c2", [ref: "v0.2.0"]}, - "bbcode_pleroma": {:hex, :bbcode_pleroma, "0.2.0", "d36f5bca6e2f62261c45be30fa9b92725c0655ad45c99025cb1c3e28e25803ef", [:mix], [{:nimble_parsec, "~> 0.5", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"}, + "bbcode_pleroma": {:hex, :bbcode_pleroma, "0.2.0", "d36f5bca6e2f62261c45be30fa9b92725c0655ad45c99025cb1c3e28e25803ef", [:mix], [{:nimble_parsec, "~> 0.5", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "19851074419a5fedb4ef49e1f01b30df504bb5dbb6d6adfc135238063bebd1c3"}, "benchee": {:hex, :benchee, "1.0.1", "66b211f9bfd84bd97e6d1beaddf8fc2312aaabe192f776e8931cb0c16f53a521", [:mix], [{:deep_merge, "~> 1.0", [hex: :deep_merge, repo: "hexpm", optional: false]}], "hexpm", "3ad58ae787e9c7c94dd7ceda3b587ec2c64604563e049b2a0e8baafae832addb"}, "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"}, - "cachex": {:hex, :cachex, "3.2.0", "a596476c781b0646e6cb5cd9751af2e2974c3e0d5498a8cab71807618b74fe2f", [:mix], [{:eternal, "~> 1.2", [hex: :eternal, repo: "hexpm", optional: false]}, {:jumper, "~> 1.0", [hex: :jumper, repo: "hexpm", optional: false]}, {:sleeplocks, "~> 1.1", [hex: :sleeplocks, repo: "hexpm", optional: false]}, {:unsafe, "~> 1.0", [hex: :unsafe, repo: "hexpm", optional: false]}], "hexpm"}, + "cachex": {:hex, :cachex, "3.2.0", "a596476c781b0646e6cb5cd9751af2e2974c3e0d5498a8cab71807618b74fe2f", [:mix], [{:eternal, "~> 1.2", [hex: :eternal, repo: "hexpm", optional: false]}, {:jumper, "~> 1.0", [hex: :jumper, repo: "hexpm", optional: false]}, {:sleeplocks, "~> 1.1", [hex: :sleeplocks, repo: "hexpm", optional: false]}, {:unsafe, "~> 1.0", [hex: :unsafe, repo: "hexpm", optional: false]}], "hexpm", "aef93694067a43697ae0531727e097754a9e992a1e7946296f5969d6dd9ac986"}, "calendar": {:hex, :calendar, "0.17.6", "ec291cb2e4ba499c2e8c0ef5f4ace974e2f9d02ae9e807e711a9b0c7850b9aee", [:mix], [{:tzdata, "~> 0.5.20 or ~> 0.1.201603 or ~> 1.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "738d0e17a93c2ccfe4ddc707bdc8e672e9074c8569498483feb1c4530fb91b2b"}, "captcha": {:git, "https://git.pleroma.social/pleroma/elixir-libraries/elixir-captcha.git", "e0f16822d578866e186a0974d65ad58cddc1e2ab", [ref: "e0f16822d578866e186a0974d65ad58cddc1e2ab"]}, "certifi": {:hex, :certifi, "2.5.1", "867ce347f7c7d78563450a18a6a28a8090331e77fa02380b4a21962a65d36ee5", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm", "805abd97539caf89ec6d4732c91e62ba9da0cda51ac462380bbd28ee697a8c42"}, diff --git a/test/web/static_fe/static_fe_controller_test.exs b/test/web/static_fe/static_fe_controller_test.exs index a072cc78f..c3d2ae3b4 100644 --- a/test/web/static_fe/static_fe_controller_test.exs +++ b/test/web/static_fe/static_fe_controller_test.exs @@ -92,6 +92,19 @@ test "single notice page", %{conn: conn, user: user} do assert html =~ "testing a thing!" end + test "filters HTML tags", %{conn: conn} do + user = insert(:user) + {:ok, activity} = CommonAPI.post(user, %{"status" => ""}) + + conn = + conn + |> put_req_header("accept", "text/html") + |> get("/notice/#{activity.id}") + + html = html_response(conn, 200) + assert html =~ ~s[<script>alert('xss')</script>] + end + test "shows the whole thread", %{conn: conn, user: user} do {:ok, activity} = CommonAPI.post(user, %{"status" => "space: the final frontier"})