# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MediaProxy do
alias Pleroma.Config
+ alias Pleroma.Upload
alias Pleroma.Web
+ alias Pleroma.Web.MediaProxy.Invalidation
@base64_opts [padding: false]
+ @cache_table :banned_urls_cache
+
+ def cache_table, do: @cache_table
+
+ @spec in_banned_urls(String.t()) :: boolean()
+ def in_banned_urls(url), do: elem(Cachex.exists?(@cache_table, url(url)), 1)
+
+ def remove_from_banned_urls(urls) when is_list(urls) do
+ Cachex.execute!(@cache_table, fn cache ->
+ Enum.each(Invalidation.prepare_urls(urls), &Cachex.del(cache, &1))
+ end)
+ end
+
+ def remove_from_banned_urls(url) when is_binary(url) do
+ Cachex.del(@cache_table, url(url))
+ end
+
+ def put_in_banned_urls(urls) when is_list(urls) do
+ Cachex.execute!(@cache_table, fn cache ->
+ Enum.each(Invalidation.prepare_urls(urls), &Cachex.put(cache, &1, true))
+ end)
+ end
+
+ def put_in_banned_urls(url) when is_binary(url) do
+ Cachex.put(@cache_table, url(url), true)
+ end
def url(url) when is_nil(url) or url == "", do: nil
def url("/" <> _ = url), do: url
def url(url) do
- if disabled?() or local?(url) or whitelisted?(url) do
+ if disabled?() or not url_proxiable?(url) do
url
else
encode_url(url)
end
end
+ @spec url_proxiable?(String.t()) :: boolean()
+ def url_proxiable?(url) do
+ if local?(url) or whitelisted?(url) do
+ false
+ else
+ true
+ end
+ end
+
defp disabled?, do: !Config.get([:media_proxy, :enabled], false)
defp local?(url), do: String.starts_with?(url, Pleroma.Web.base_url())
defp whitelisted?(url) do
%{host: domain} = URI.parse(url)
- Enum.any?(Config.get([:media_proxy, :whitelist]), fn pattern ->
- String.equivalent?(domain, pattern)
- end)
+ mediaproxy_whitelist_domains =
+ [:media_proxy, :whitelist]
+ |> Config.get()
+ |> Enum.map(&maybe_get_domain_from_url/1)
+
+ whitelist_domains =
+ if base_url = Config.get([Upload, :base_url]) do
+ %{host: base_domain} = URI.parse(base_url)
+ [base_domain | mediaproxy_whitelist_domains]
+ else
+ mediaproxy_whitelist_domains
+ end
+
+ domain in whitelist_domains
end
+ defp maybe_get_domain_from_url("http" <> _ = url) do
+ URI.parse(url).host
+ end
+
+ defp maybe_get_domain_from_url(domain), do: domain
+
def encode_url(url) do
base64 = Base.url_encode64(url, @base64_opts)
def build_url(sig_base64, url_base64, filename \\ nil) do
[
- Pleroma.Config.get([:media_proxy, :base_url], Web.base_url()),
+ Config.get([:media_proxy, :base_url], Web.base_url()),
"proxy",
sig_base64,
url_base64,