1 files changed, 74 insertions, 0 deletions
diff --git a/lib/pleroma/web/admin_api/controllers/media_proxy_cache_controller.ex b/lib/pleroma/web/admin_api/controllers/media_proxy_cache_controller.ex
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+++ b/lib/pleroma/web/admin_api/controllers/media_proxy_cache_controller.ex
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.MediaProxyCacheController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.Web.ApiSpec.Admin, as: Spec
+  alias Pleroma.Web.MediaProxy
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["read:media_proxy_caches"], admin: true} when action in [:index]
+  )
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["write:media_proxy_caches"], admin: true} when action in [:purge, :delete]
+  )
+
+  action_fallback(Pleroma.Web.AdminAPI.FallbackController)
+
+  defdelegate open_api_operation(action), to: Spec.MediaProxyCacheOperation
+
+  def index(%{assigns: %{user: _}} = conn, params) do
+    entries = fetch_entries(params)
+    urls = paginate_entries(entries, params.page, params.page_size)
+
+    render(conn, "index.json",
+      urls: urls,
+      page_size: params.page_size,
+      count: length(entries)
+    )
+  end
+
+  defp fetch_entries(params) do
+    MediaProxy.cache_table()
+    |> Cachex.stream!(Cachex.Query.create(true, :key))
+    |> filter_entries(params[:query])
+  end
+
+  defp filter_entries(stream, query) when is_binary(query) do
+    regex = ~r/#{query}/i
+
+    stream
+    |> Enum.filter(fn url -> String.match?(url, regex) end)
+    |> Enum.to_list()
+  end
+
+  defp filter_entries(stream, _), do: Enum.to_list(stream)
+
+  defp paginate_entries(entries, page, page_size) do
+    offset = page_size * (page - 1)
+    Enum.slice(entries, offset, page_size)
+  end
+
+  def delete(%{assigns: %{user: _}, body_params: %{urls: urls}} = conn, _) do
+    MediaProxy.remove_from_banned_urls(urls)
+    json(conn, %{})
+  end
+
+  def purge(%{assigns: %{user: _}, body_params: %{urls: urls, ban: ban}} = conn, _) do
+    MediaProxy.Invalidation.purge(urls)
+
+    if ban do
+      MediaProxy.put_in_banned_urls(urls)
+    end
+
+    json(conn, %{})
+  end
+end