Add some tests

config/config.exs

@@ -35,6 +35,7 @@
 config :pleroma, Pleroma.Upload,
   uploader: Pleroma.Uploaders.Local,
   filters: [],
+  link_name: true,
   proxy_remote: false,
   proxy_opts: [
     redirect_on_failure: false,

config/test.exs

@@ -17,6 +17,8 @@
 # Print only warnings and errors during test
 config :logger, level: :warn
 
+config :pleroma, Pleroma.Upload, link_name: false
+
 config :pleroma, Pleroma.Uploaders.Local, uploads: "test/uploads"
 
 config :pleroma, Pleroma.Mailer, adapter: Swoosh.Adapters.Test

docs/config.md

@@ -6,6 +6,7 @@ If you run Pleroma with ``MIX_ENV=prod`` the file is ``prod.secret.exs``, otherw
 ## Pleroma.Upload
 * `uploader`: Select which `Pleroma.Uploaders` to use
 * `filters`: List of `Pleroma.Upload.Filter` to use.
+* `link_name`: When enabled Pleroma will add a `name` parameter to the url of the upload, for example `https://instance.tld/media/corndog.png?name=corndog.png`. This is needed to provide the correct filename in Content-Disposition headers when using filters like `Pleroma.Upload.Filter.Dedupe`
 * `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host.
 * `proxy_remote`: If you\'re using a remote uploader, Pleroma will proxy media requests instead of redirecting to it.
 * `proxy_opts`: Proxy options, see `Pleroma.ReverseProxy` documentation.

lib/pleroma/plugs/uploaded_media.ex

@@ -30,7 +30,7 @@ def call(%{request_path: <<"/", @path, "/", file::binary>>} = conn, opts) do
           name = String.replace(name, "\"", "\\\"")
 
           conn
-          |> put_resp_header("Content-Disposition", "filename=\"#{name}\"")
+          |> put_resp_header("content-disposition", "filename=\"#{name}\"")
 
         conn ->
           conn

lib/pleroma/upload.ex

@@ -70,7 +70,7 @@ def store(upload, opts \\ []) do
            %{
              "type" => "Link",
              "mediaType" => upload.content_type,
-             "href" => url_from_spec(opts.base_url, url_spec, upload.name)
+             "href" => url_from_spec(upload, opts.base_url, url_spec)
            }
          ],
          "name" => Map.get(opts, :description) || upload.name
@@ -219,12 +219,18 @@ defp tempfile_for_image(data) do
     tmp_path
   end
 
-  defp url_from_spec(base_url, {:file, path}, name) do
-    path = URI.encode(path, &char_unescaped?/1) <> "?name=#{URI.encode(name, &char_unescaped?/1)}"
+  defp url_from_spec(%__MODULE__{name: name}, base_url, {:file, path}) do
+    path =
+      URI.encode(path, &char_unescaped?/1) <>
+        if Pleroma.Config.get([__MODULE__, :link_name], false) do
+          "?name=#{URI.encode(name, &char_unescaped?/1)}"
+        else
+          ""
+        end
 
     [base_url, "media", path]
     |> Path.join()
   end
 
-  defp url_from_spec(_base_url, {:url, url}, _name), do: url
+  defp url_from_spec(_upload, _base_url, {:url, url}), do: url
 end

test/plugs/uploaded_media_plug_test.exs

@@ -0,0 +1,40 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.UploadedMediaPlugTest do
+  use Pleroma.Web.ConnCase
+  alias Pleroma.Upload
+
+  setup_all do
+    File.cp!("test/fixtures/image.jpg", "test/fixtures/image_tmp.jpg")
+
+    file = %Plug.Upload{
+      content_type: "image/jpg",
+      path: Path.absname("test/fixtures/image_tmp.jpg"),
+      filename: "nice_tf.jpg"
+    }
+
+    {:ok, data} = Upload.store(file)
+    [%{"href" => attachment_url} | _] = data["url"]
+    [attachment_url: attachment_url]
+  end
+
+  test "does not send Content-Disposition header when name param is not set", %{
+    attachment_url: attachment_url
+  } do
+    conn = get(build_conn(), attachment_url)
+    refute Enum.any?(conn.resp_headers, &(elem(&1, 0) == "content-disposition"))
+  end
+
+  test "sends Content-Disposition header when name param is set", %{
+    attachment_url: attachment_url
+  } do
+    conn = get(build_conn(), attachment_url <> "?name=\"cofe\".gif")
+
+    assert Enum.any?(
+             conn.resp_headers,
+             &(&1 == {"content-disposition", "filename=\"\\\"cofe\\\".gif\""})
+           )
+  end
+end

test/upload_test.exs

@@ -56,7 +56,7 @@ test "copies the file to the configured folder with deduping" do
 
       assert List.first(data["url"])["href"] ==
                Pleroma.Web.base_url() <>
-                 "/media/e7a6d0cf595bff76f14c9a98b6c199539559e8b844e02e51e5efcfd1f614a2df.jpg?name=an%20%5Bimage.jpg"
+                 "/media/e7a6d0cf595bff76f14c9a98b6c199539559e8b844e02e51e5efcfd1f614a2df.jpg"
     end
 
     test "copies the file to the configured folder without deduping" do
@@ -151,7 +151,7 @@ test "escapes invalid characters in url" do
       [attachment_url | _] = data["url"]
 
       assert Path.basename(attachment_url["href"]) ==
-               "an%E2%80%A6%20image.jpg?name=an%E2%80%A6%20image.jpg"
+               "an%E2%80%A6%20image.jpg"
     end
 
     test "escapes reserved uri characters" do
@@ -167,7 +167,7 @@ test "escapes reserved uri characters" do
       [attachment_url | _] = data["url"]
 
       assert Path.basename(attachment_url["href"]) ==
-               "%3A%3F%23%5B%5D%40%21%24%26%5C%27%28%29%2A%2B%2C%3B%3D.jpg?name=%3A%3F%23%5B%5D%40%21%24%26%5C%27%28%29%2A%2B%2C%3B%3D.jpg"
+               "%3A%3F%23%5B%5D%40%21%24%26%5C%27%28%29%2A%2B%2C%3B%3D.jpg"
     end
   end
 end