Try to use custom filename in attachment_links

lib/pleroma/upload.ex

@@ -91,7 +91,7 @@ defmodule Pleroma.Upload do
            }
          ],
          "name" => description,
-         "filename" => Map.get(opts, :filename) || upload.name
+         "filename" => Map.get(opts, :filename)
        }}
     else
       {:description_limit, _} ->

lib/pleroma/web/common_api/utils.ex

@@ -255,7 +255,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
   end
 
   defp build_attachment_link(%{"url" => [%{"href" => href} | _]} = attachment) do
-    name = attachment["name"] || URI.decode(Path.basename(href))
+    name = attachment["filename"] || attachment["name"] || URI.decode(Path.basename(href))
     href = MediaProxy.url(href)
     "<a href=\"#{href}\" class='attachment'>#{shortname(name)}</a>"
   end

test/pleroma/upload_test.exs

@@ -62,7 +62,7 @@ defmodule Pleroma.UploadTest do
                       "type" => "Link"
                     }
                   ],
-                  "filename" => "image.jpg"
+                  "filename" => nil
                 }}
 
       Task.await(Agent.get(TestUploaderSuccess, fn task_pid -> task_pid end))
@@ -139,7 +139,7 @@ defmodule Pleroma.UploadTest do
       assert data["filename"] == filename
     end
 
-    test "saves default filename if opts don't have one" do
+    test "sets filename to nil if opts don't have one" do
       File.cp!("test/fixtures/image.jpg", "test/fixtures/image_tmp.jpg")
 
       desc = "sample file"
@@ -154,7 +154,7 @@ defmodule Pleroma.UploadTest do
       {:ok, data} = Upload.store(file, description: desc)
 
       assert data["name"] == desc
-      assert data["filename"] == filename
+      refute data["filename"]
     end
 
     @tag capture_log: true

test/pleroma/web/mastodon_api/controllers/status_controller_test.exs

@@ -126,6 +126,38 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
       )
     end
 
+    test "posting a status with an attachment", %{user: user, conn: conn} do
+      clear_config([:instance, :attachment_links], true)
+      filename = "an_image.jpg"
+      custom_filename = "look at this.jpg"
+
+      file = %Plug.Upload{
+        content_type: "image/jpg",
+        path: Path.absname("test/fixtures/image.jpg"),
+        filename: filename
+      }
+
+      {:ok, upload} =
+        ActivityPub.upload(file,
+          actor: user.ap_id,
+          description: "test image",
+          filename: custom_filename
+        )
+
+      response =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/statuses", %{
+          "status" => "cofe",
+          "spoiler_text" => "2hu",
+          "media_ids" => [to_string(upload.id)]
+        })
+        |> json_response_and_validate_schema(200)
+
+      assert String.ends_with?(response["content"], "#{filename}\">#{custom_filename}</a>")
+      assert length(response["media_attachments"]) == 1
+    end
+
     test "it fails to create a status if `expires_in` is less or equal than an hour", %{
       conn: conn
     } do
@@ -166,22 +198,28 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
     end
 
     test "posting an undefined status with an attachment", %{user: user, conn: conn} do
+      clear_config([:instance, :attachment_links], true)
+      filename = "an_image.jpg"
+      description = "test image"
+
       file = %Plug.Upload{
         content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
-        filename: "an_image.jpg"
+        filename: filename
       }
 
-      {:ok, upload} = ActivityPub.upload(file, actor: user.ap_id)
+      {:ok, upload} = ActivityPub.upload(file, actor: user.ap_id, description: description)
 
-      conn =
+      response =
         conn
         |> put_req_header("content-type", "application/json")
         |> post("/api/v1/statuses", %{
           "media_ids" => [to_string(upload.id)]
         })
+        |> json_response_and_validate_schema(200)
 
-      assert json_response_and_validate_schema(conn, 200)
+      assert String.ends_with?(response["content"], "#{filename}\">#{description}</a>")
+      assert length(response["media_attachments"]) == 1
     end
 
     test "replying to a status", %{user: user, conn: conn} do