mirror of
https://git.pleroma.social/pleroma/pleroma.git
synced 2024-12-22 16:16:34 +00:00
63 lines
1.7 KiB
Elixir
63 lines
1.7 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.HTML.Scrubber.TwitterText do
|
|
@moduledoc """
|
|
An HTML scrubbing policy which limits to twitter-style text. Only
|
|
paragraphs, breaks and links are allowed through the filter.
|
|
"""
|
|
|
|
@valid_schemes Pleroma.Config.get([:uri_schemes, :valid_schemes], [])
|
|
|
|
require FastSanitize.Sanitizer.Meta
|
|
alias FastSanitize.Sanitizer.Meta
|
|
|
|
Meta.strip_comments()
|
|
|
|
# links
|
|
Meta.allow_tag_with_uri_attributes(:a, ["href", "data-user", "data-tag"], @valid_schemes)
|
|
|
|
Meta.allow_tag_with_this_attribute_values(:a, "class", [
|
|
"hashtag",
|
|
"u-url",
|
|
"mention",
|
|
"u-url mention",
|
|
"mention u-url",
|
|
"mention hashtag"
|
|
])
|
|
|
|
Meta.allow_tag_with_this_attribute_values(:a, "rel", [
|
|
"tag",
|
|
"nofollow",
|
|
"noopener",
|
|
"noreferrer"
|
|
])
|
|
|
|
Meta.allow_tag_with_these_attributes(:a, ["name", "title"])
|
|
|
|
# paragraphs and linebreaks
|
|
Meta.allow_tag_with_these_attributes(:br, [])
|
|
Meta.allow_tag_with_these_attributes(:p, [])
|
|
|
|
# microformats
|
|
Meta.allow_tag_with_this_attribute_values(:span, "class", ["h-card"])
|
|
Meta.allow_tag_with_these_attributes(:span, [])
|
|
|
|
# allow inline images for custom emoji
|
|
if Pleroma.Config.get([:markup, :allow_inline_images]) do
|
|
Meta.allow_tag_with_this_attribute_values(:img, "class", ["emoji"])
|
|
|
|
# restrict img tags to http/https only, because of MediaProxy.
|
|
Meta.allow_tag_with_uri_attributes(:img, ["src"], ["http", "https"])
|
|
|
|
Meta.allow_tag_with_these_attributes(:img, [
|
|
"width",
|
|
"height",
|
|
"title",
|
|
"alt"
|
|
])
|
|
end
|
|
|
|
Meta.strip_everything_not_covered()
|
|
end
|