2019-07-30 14:40:59 +00:00
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# Portions of this file are derived from Pleroma:
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social>
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# SPDX-License-Identifier: AGPL-3.0-only
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# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/html.ex
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defmodule Mobilizon.Service.HTML do
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@moduledoc """
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Service to filter tags out of HTML content
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"""
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alias HtmlSanitizeEx.Scrubber
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alias Mobilizon.Service.HTML.Scrubber.Default
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def filter_tags(html), do: Scrubber.scrub(html, Default)
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end
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defmodule Mobilizon.Service.HTML.Scrubber.Default do
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@moduledoc "Custom strategy to filter HTML content"
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require HtmlSanitizeEx.Scrubber.Meta
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alias HtmlSanitizeEx.Scrubber.Meta
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# credo:disable-for-previous-line
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# No idea how to fix this one…
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Meta.remove_cdata_sections_before_scrub()
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Meta.strip_comments()
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Meta.allow_tag_with_uri_attributes("a", ["href", "data-user", "data-tag"], ["https", "http"])
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Meta.allow_tag_with_this_attribute_values("a", "class", [
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"hashtag",
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"u-url",
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"mention",
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"u-url mention",
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"mention u-url"
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])
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Meta.allow_tag_with_this_attribute_values("a", "rel", [
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"tag",
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"nofollow",
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"noopener",
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"noreferrer"
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])
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Meta.allow_tag_with_these_attributes("a", ["name", "title"])
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Meta.allow_tag_with_these_attributes("abbr", ["title"])
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Meta.allow_tag_with_these_attributes("b", [])
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Meta.allow_tag_with_these_attributes("blockquote", [])
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Meta.allow_tag_with_these_attributes("br", [])
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Meta.allow_tag_with_these_attributes("code", [])
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Meta.allow_tag_with_these_attributes("del", [])
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Meta.allow_tag_with_these_attributes("em", [])
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Meta.allow_tag_with_these_attributes("i", [])
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Meta.allow_tag_with_these_attributes("li", [])
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Meta.allow_tag_with_these_attributes("ol", [])
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Meta.allow_tag_with_these_attributes("p", [])
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Meta.allow_tag_with_these_attributes("pre", [])
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Meta.allow_tag_with_these_attributes("strong", [])
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Meta.allow_tag_with_these_attributes("u", [])
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Meta.allow_tag_with_these_attributes("ul", [])
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2019-10-10 09:05:53 +00:00
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Meta.allow_tag_with_these_attributes("img", ["src", "alt"])
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2019-07-30 14:40:59 +00:00
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Meta.allow_tag_with_this_attribute_values("span", "class", ["h-card"])
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Meta.allow_tag_with_these_attributes("span", [])
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Meta.allow_tag_with_these_attributes("h1", [])
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Meta.allow_tag_with_these_attributes("h2", [])
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Meta.allow_tag_with_these_attributes("h3", [])
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Meta.allow_tag_with_these_attributes("h4", [])
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Meta.allow_tag_with_these_attributes("h5", [])
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Meta.strip_everything_not_covered()
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end
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