Fix comment grammar

[akkoma] / lib / pleroma / upload.ex

diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index d5723f5de1cd054d60d093f409e665723fdfefb9..e5df9400987adfc285302975d32cdc78e1829339 100644 (file)
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -1,28 +1,31 @@
 defmodule Pleroma.Upload do
   alias Ecto.UUID
   alias Pleroma.Web
+
   def store(%Plug.Upload{} = file) do
-    uuid = UUID.generate
+    uuid = UUID.generate()
     upload_folder = Path.join(upload_path(), uuid)
     File.mkdir_p!(upload_folder)
     result_file = Path.join(upload_folder, file.filename)
     File.cp!(file.path, result_file)
 
     # fix content type on some image uploads
-    matches = Regex.named_captures(~r/\.(?<ext>(jpg|jpeg|png|gif))$/i, file.filename)
-    content_type = if file.content_type == "application/octet-stream" and matches do
-      if matches["ext"] == "jpg", do: "image/jpeg", else: "image/#{matches["ext"]}"
-    else
-      file.content_type
-    end
+    content_type =
+      if file.content_type in [nil, "application/octet-stream"] do
+        get_content_type(file.path)
+      else
+        file.content_type
+      end
 
     %{
       "type" => "Image",
-      "url" => [%{
-        "type" => "Link",
-        "mediaType" => content_type,
-        "href" => url_for(Path.join(uuid, :cow_uri.urlencode(file.filename)))
-      }],
+      "url" => [
+        %{
+          "type" => "Link",
+          "mediaType" => content_type,
+          "href" => url_for(Path.join(uuid, :cow_uri.urlencode(file.filename)))
+        }
+      ],
       "name" => file.filename,
       "uuid" => uuid
     }
@@ -31,7 +34,7 @@ defmodule Pleroma.Upload do
   def store(%{"img" => "data:image/" <> image_data}) do
     parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
     data = Base.decode64!(parsed["data"])
-    uuid = UUID.generate
+    uuid = UUID.generate()
     upload_folder = Path.join(upload_path(), uuid)
     File.mkdir_p!(upload_folder)
     filename = Base.encode16(:crypto.hash(:sha256, data)) <> ".#{parsed["filetype"]}"
@@ -43,17 +46,19 @@ defmodule Pleroma.Upload do
 
     %{
       "type" => "Image",
-      "url" => [%{
-        "type" => "Link",
-        "mediaType" => content_type,
-        "href" => url_for(Path.join(uuid, :cow_uri.urlencode(filename)))
-      }],
+      "url" => [
+        %{
+          "type" => "Link",
+          "mediaType" => content_type,
+          "href" => url_for(Path.join(uuid, :cow_uri.urlencode(filename)))
+        }
+      ],
       "name" => filename,
       "uuid" => uuid
     }
   end
 
-  defp upload_path do
+  def upload_path do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
     Keyword.fetch!(settings, :uploads)
   end
@@ -61,4 +66,43 @@ defmodule Pleroma.Upload do
   defp url_for(file) do
     "#{Web.base_url()}/media/#{file}"
   end
+
+  def get_content_type(file) do
+    match =
+      File.open(file, [:read], fn f ->
+        case IO.binread(f, 8) do
+          <<0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A>> ->
+            "image/png"
+
+          <<0x47, 0x49, 0x46, 0x38, _, 0x61, _, _>> ->
+            "image/gif"
+
+          <<0xFF, 0xD8, 0xFF, _, _, _, _, _>> ->
+            "image/jpeg"
+
+          <<0x1A, 0x45, 0xDF, 0xA3, _, _, _, _>> ->
+            "video/webm"
+
+          <<0x00, 0x00, 0x00, _, 0x66, 0x74, 0x79, 0x70>> ->
+            "video/mp4"
+
+          <<0x49, 0x44, 0x33, _, _, _, _, _>> ->
+            "audio/mpeg"
+
+          <<0x4F, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00>> ->
+            "audio/ogg"
+
+          <<0x52, 0x49, 0x46, 0x46, _, _, _, _>> ->
+            "audio/wav"
+
+          _ ->
+            "application/octet-stream"
+        end
+      end)
+
+    case match do
+      {:ok, type} -> type
+      _e -> "application/octet-stream"
+    end
+  end
 end