Merge branch 'feature/mediaproxy-inline-images' into 'develop'

html: support mediaproxy for inline images

Closes #275

See merge request pleroma/pleroma!346
This commit is contained in:
kaniini 2018-09-16 02:25:11 +00:00
commit 22c366a85f
2 changed files with 48 additions and 3 deletions

View file

@ -83,7 +83,10 @@
allow_headings: false,
allow_tables: false,
allow_fonts: false,
scrub_policy: Pleroma.HTML.Scrubber.Default
scrub_policy: [
Pleroma.HTML.Transform.MediaProxy,
Pleroma.HTML.Scrubber.Default
]
config :pleroma, :fe,
theme: "pleroma-dark",

View file

@ -3,13 +3,24 @@ defmodule Pleroma.HTML do
@markup Application.get_env(:pleroma, :markup)
defp get_scrubbers(scrubber) when is_atom(scrubber), do: [scrubber]
defp get_scrubbers(scrubbers) when is_list(scrubbers), do: scrubbers
defp get_scrubbers(_), do: [Pleroma.HTML.Scrubber.Default]
def get_scrubbers() do
Keyword.get(@markup, :scrub_policy)
|> get_scrubbers
end
def filter_tags(html, scrubber) do
html |> Scrubber.scrub(scrubber)
end
def filter_tags(html) do
scrubber = Keyword.get(@markup, :scrub_policy)
filter_tags(html, scrubber)
get_scrubbers()
|> Enum.reduce(html, fn scrubber, html ->
filter_tags(html, scrubber)
end)
end
def strip_tags(html) do
@ -131,3 +142,34 @@ defmodule Pleroma.HTML.Scrubber.Default do
Meta.strip_everything_not_covered()
end
defmodule Pleroma.HTML.Transform.MediaProxy do
@moduledoc "Transforms inline image URIs to use MediaProxy."
alias Pleroma.Web.MediaProxy
def before_scrub(html), do: html
def scrub_attribute("img", {"src", "http" <> target}) do
media_url =
("http" <> target)
|> MediaProxy.url()
{"src", media_url}
end
def scrub_attribute(tag, attribute), do: attribute
def scrub({"img", attributes, children}) do
attributes =
attributes
|> Enum.map(fn attr -> scrub_attribute("img", attr) end)
|> Enum.reject(&is_nil(&1))
{"img", attributes, children}
end
def scrub({tag, attributes, children}), do: {tag, attributes, children}
def scrub({tag, children}), do: children
def scrub(text), do: text
end