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diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index 9dcd9987a..238630bf3 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -1,189 +1,190 @@
defmodule Pleroma.Upload do
alias Ecto.UUID
def check_file_size(path, nil), do: true
def check_file_size(path, size_limit) do
{:ok, %{size: size}} = File.stat(path)
size <= size_limit
end
def store(file, should_dedupe, size_limit \\ nil)
def store(%Plug.Upload{} = file, should_dedupe, size_limit) do
content_type = get_content_type(file.path)
with uuid <- get_uuid(file, should_dedupe),
name <- get_name(file, uuid, content_type, should_dedupe),
true <- check_file_size(file.path, size_limit) do
strip_exif_data(content_type, file.path)
{:ok, url_path} = uploader().put_file(name, uuid, file.path, content_type, should_dedupe)
%{
"type" => "Document",
"url" => [
%{
"type" => "Link",
"mediaType" => content_type,
"href" => url_path
}
],
"name" => name
}
else
_e -> nil
end
end
def store(%{"img" => "data:image/" <> image_data}, should_dedupe, size_limit) do
parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
data = Base.decode64!(parsed["data"], ignore: :whitespace)
with tmp_path <- tempfile_for_image(data),
uuid <- UUID.generate(),
true <- check_file_size(tmp_path, size_limit) do
content_type = get_content_type(tmp_path)
strip_exif_data(content_type, tmp_path)
name =
create_name(
String.downcase(Base.encode16(:crypto.hash(:sha256, data))),
parsed["filetype"],
content_type
)
{:ok, url_path} = uploader().put_file(name, uuid, tmp_path, content_type, should_dedupe)
%{
"type" => "Image",
"url" => [
%{
"type" => "Link",
"mediaType" => content_type,
"href" => url_path
}
],
"name" => name
}
else
_e -> nil
end
end
@doc """
Creates a tempfile using the Plug.Upload Genserver which cleans them up
automatically.
"""
def tempfile_for_image(data) do
{:ok, tmp_path} = Plug.Upload.random_file("profile_pics")
{:ok, tmp_file} = File.open(tmp_path, [:write, :raw, :binary])
IO.binwrite(tmp_file, data)
tmp_path
end
def strip_exif_data(content_type, file) do
settings = Application.get_env(:pleroma, Pleroma.Upload)
do_strip = Keyword.fetch!(settings, :strip_exif)
[filetype, _ext] = String.split(content_type, "/")
if filetype == "image" and do_strip == true do
Mogrify.open(file) |> Mogrify.custom("strip") |> Mogrify.save(in_place: true)
end
end
defp create_name(uuid, ext, type) do
case type do
"application/octet-stream" ->
String.downcase(Enum.join([uuid, ext], "."))
"audio/mpeg" ->
String.downcase(Enum.join([uuid, "mp3"], "."))
_ ->
String.downcase(Enum.join([uuid, List.last(String.split(type, "/"))], "."))
end
end
defp get_uuid(file, should_dedupe) do
if should_dedupe do
Base.encode16(:crypto.hash(:sha256, File.read!(file.path)))
else
UUID.generate()
end
end
defp get_name(file, uuid, type, should_dedupe) do
if should_dedupe do
create_name(uuid, List.last(String.split(file.filename, ".")), type)
else
parts = String.split(file.filename, ".")
new_filename =
if length(parts) > 1 do
Enum.drop(parts, -1) |> Enum.join(".")
else
Enum.join(parts)
end
case type do
"application/octet-stream" -> file.filename
"audio/mpeg" -> new_filename <> ".mp3"
"image/jpeg" -> new_filename <> ".jpg"
_ -> Enum.join([new_filename, String.split(type, "/") |> List.last()], ".")
end
end
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"
<<255, 251, _, 68, 0, 0, 0, 0>> ->
"audio/mpeg"
<<0x4F, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00>> ->
case IO.binread(f, 27) do
- <<_::size(160), 0x80, 0x74,0x68,0x65,0x6f,0x72,0x61>> ->
+ <<_::size(160), 0x80, 0x74, 0x68, 0x65, 0x6F, 0x72, 0x61>> ->
"video/ogg"
+
_ ->
"audio/ogg"
end
<<0x52, 0x49, 0x46, 0x46, _, _, _, _>> ->
"audio/wav"
_ ->
"application/octet-stream"
end
end)
case match do
{:ok, type} -> type
_e -> "application/octet-stream"
end
end
defp uploader() do
Pleroma.Config.get!([Pleroma.Upload, :uploader])
end
end

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