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Merge branch 'develop' into feature/database-compaction

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rinpatch 2019-04-17 12:22:32 +03:00
commit 627e5a0a49
1271 changed files with 42114 additions and 70683 deletions
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117
lib/pleroma/html.ex
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@ -1,3 +1,7 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.HTML do
alias HtmlSanitizeEx.Scrubber
@ -5,26 +9,83 @@ defmodule Pleroma.HTML do
defp get_scrubbers(scrubbers) when is_list(scrubbers), do: scrubbers
defp get_scrubbers(_), do: [Pleroma.HTML.Scrubber.Default]
def get_scrubbers() do
def get_scrubbers do
Pleroma.Config.get([:markup, :scrub_policy])
|> get_scrubbers
end
def filter_tags(html, nil) do
get_scrubbers()
|> Enum.reduce(html, fn scrubber, html ->
filter_tags(html, get_scrubbers())
end
def filter_tags(html, scrubbers) when is_list(scrubbers) do
Enum.reduce(scrubbers, html, fn scrubber, html ->
filter_tags(html, scrubber)
end)
end
def filter_tags(html, scrubber) do
html |> Scrubber.scrub(scrubber)
def filter_tags(html, scrubber), do: Scrubber.scrub(html, scrubber)
def filter_tags(html), do: filter_tags(html, nil)
def strip_tags(html), do: Scrubber.scrub(html, Scrubber.StripTags)
def get_cached_scrubbed_html_for_activity(content, scrubbers, activity, key \\ "") do
key = "#{key}#{generate_scrubber_signature(scrubbers)}|#{activity.id}"
Cachex.fetch!(:scrubber_cache, key, fn _key ->
object = Pleroma.Object.normalize(activity)
ensure_scrubbed_html(content, scrubbers, object.data["fake"] || false)
end)
end
def filter_tags(html), do: filter_tags(html, nil)
def get_cached_stripped_html_for_activity(content, activity, key) do
get_cached_scrubbed_html_for_activity(
content,
HtmlSanitizeEx.Scrubber.StripTags,
activity,
key
)
end
def strip_tags(html) do
html |> Scrubber.scrub(Scrubber.StripTags)
def ensure_scrubbed_html(
content,
scrubbers,
false = _fake
) do
{:commit, filter_tags(content, scrubbers)}
end
def ensure_scrubbed_html(
content,
scrubbers,
true = _fake
) do
{:ignore, filter_tags(content, scrubbers)}
end
defp generate_scrubber_signature(scrubber) when is_atom(scrubber) do
generate_scrubber_signature([scrubber])
end
defp generate_scrubber_signature(scrubbers) do
Enum.reduce(scrubbers, "", fn scrubber, signature ->
"#{signature}#{to_string(scrubber)}"
end)
end
def extract_first_external_url(_, nil), do: {:error, "No content"}
def extract_first_external_url(object, content) do
key = "URL|#{object.id}"
Cachex.fetch!(:scrubber_cache, key, fn _key ->
result =
content
|> Floki.filter_out("a.mention")
|> Floki.attribute("a", "href")
|> Enum.at(0)
{:commit, {:ok, result}}
end)
end
end
@ -35,8 +96,7 @@ defmodule Pleroma.HTML.Scrubber.TwitterText do
"""
@markup Application.get_env(:pleroma, :markup)
@uri_schemes Application.get_env(:pleroma, :uri_schemes, [])
@valid_schemes Keyword.get(@uri_schemes, :valid_schemes, [])
@valid_schemes Pleroma.Config.get([:uri_schemes, :valid_schemes], [])
require HtmlSanitizeEx.Scrubber.Meta
alias HtmlSanitizeEx.Scrubber.Meta
@ -45,15 +105,22 @@ defmodule Pleroma.HTML.Scrubber.TwitterText do
Meta.strip_comments()
# links
Meta.allow_tag_with_uri_attributes("a", ["href"], @valid_schemes)
Meta.allow_tag_with_these_attributes("a", ["name", "title"])
Meta.allow_tag_with_uri_attributes("a", ["href", "data-user", "data-tag"], @valid_schemes)
Meta.allow_tag_with_these_attributes("a", ["name", "title", "class"])
Meta.allow_tag_with_this_attribute_values("a", "rel", [
"tag",
"nofollow",
"noopener",
"noreferrer"
])
# paragraphs and linebreaks
Meta.allow_tag_with_these_attributes("br", [])
Meta.allow_tag_with_these_attributes("p", [])
# microformats
Meta.allow_tag_with_these_attributes("span", [])
Meta.allow_tag_with_these_attributes("span", ["class"])
# allow inline images for custom emoji
@allow_inline_images Keyword.get(@markup, :allow_inline_images)
@ -78,16 +145,24 @@ defmodule Pleroma.HTML.Scrubber.Default do
require HtmlSanitizeEx.Scrubber.Meta
alias HtmlSanitizeEx.Scrubber.Meta
# credo:disable-for-previous-line
# No idea how to fix this one…
@markup Application.get_env(:pleroma, :markup)
@uri_schemes Application.get_env(:pleroma, :uri_schemes, [])
@valid_schemes Keyword.get(@uri_schemes, :valid_schemes, [])
@valid_schemes Pleroma.Config.get([:uri_schemes, :valid_schemes], [])
Meta.remove_cdata_sections_before_scrub()
Meta.strip_comments()
Meta.allow_tag_with_uri_attributes("a", ["href"], @valid_schemes)
Meta.allow_tag_with_these_attributes("a", ["name", "title"])
Meta.allow_tag_with_uri_attributes("a", ["href", "data-user", "data-tag"], @valid_schemes)
Meta.allow_tag_with_these_attributes("a", ["name", "title", "class"])
Meta.allow_tag_with_this_attribute_values("a", "rel", [
"tag",
"nofollow",
"noopener",
"noreferrer"
])
Meta.allow_tag_with_these_attributes("abbr", ["title"])
@ -102,7 +177,7 @@ defmodule Pleroma.HTML.Scrubber.Default do
Meta.allow_tag_with_these_attributes("ol", [])
Meta.allow_tag_with_these_attributes("p", [])
Meta.allow_tag_with_these_attributes("pre", [])
Meta.allow_tag_with_these_attributes("span", [])
Meta.allow_tag_with_these_attributes("span", ["class"])
Meta.allow_tag_with_these_attributes("strong", [])
Meta.allow_tag_with_these_attributes("u", [])
Meta.allow_tag_with_these_attributes("ul", [])
@ -166,7 +241,7 @@ defmodule Pleroma.HTML.Transform.MediaProxy do
{"src", media_url}
end
def scrub_attribute(tag, attribute), do: attribute
def scrub_attribute(_tag, attribute), do: attribute
def scrub({"img", attributes, children}) do
attributes =
@ -177,9 +252,9 @@ defmodule Pleroma.HTML.Transform.MediaProxy do
{"img", attributes, children}
end
def scrub({:comment, children}), do: ""
def scrub({:comment, _children}), do: ""
def scrub({tag, attributes, children}), do: {tag, attributes, children}
def scrub({tag, children}), do: children
def scrub({_tag, children}), do: children
def scrub(text), do: text
end