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57 lines
1.5 KiB
Elixir
57 lines
1.5 KiB
Elixir
defmodule Pleroma.HTML.Scrubber.TwitterText do
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@moduledoc """
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An HTML scrubbing policy which limits to twitter-style text. Only
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paragraphs, breaks and links are allowed through the filter.
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"""
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@valid_schemes Pleroma.Config.get([:uri_schemes, :valid_schemes], [])
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require FastSanitize.Sanitizer.Meta
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alias FastSanitize.Sanitizer.Meta
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Meta.strip_comments()
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# links
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Meta.allow_tag_with_uri_attributes(:a, ["href", "data-user", "data-tag"], @valid_schemes)
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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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# paragraphs and linebreaks
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Meta.allow_tag_with_these_attributes(:br, [])
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Meta.allow_tag_with_these_attributes(:p, [])
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# microformats
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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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# allow inline images for custom emoji
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if Pleroma.Config.get([:markup, :allow_inline_images]) do
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# restrict img tags to http/https only, because of MediaProxy.
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Meta.allow_tag_with_uri_attributes(:img, ["src"], ["http", "https"])
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Meta.allow_tag_with_these_attributes(:img, [
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"width",
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"height",
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"class",
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"title",
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"alt"
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])
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end
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Meta.strip_everything_not_covered()
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end
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