1 defmodule Pleroma.Upload do
4 @storage_backend Application.get_env(:pleroma, Pleroma.Upload)
5 |> Keyword.fetch!(:uploader)
7 def store(%Plug.Upload{} = file, should_dedupe) do
8 content_type = get_content_type(file.path)
10 uuid = get_uuid(file, should_dedupe)
11 name = get_name(file, uuid, content_type, should_dedupe)
13 strip_exif_data(content_type, file.path)
16 @storage_backend.put_file(name, uuid, file.path, content_type, should_dedupe)
23 "mediaType" => content_type,
31 def store(%{"img" => "data:image/" <> image_data}, should_dedupe) do
32 parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
33 data = Base.decode64!(parsed["data"], ignore: :whitespace)
35 tmp_path = tempfile_for_image(data)
37 uuid = UUID.generate()
39 content_type = get_content_type(tmp_path)
40 strip_exif_data(content_type, tmp_path)
44 String.downcase(Base.encode16(:crypto.hash(:sha256, data))),
49 {:ok, url_path} = @storage_backend.put_file(name, uuid, tmp_path, content_type, should_dedupe)
56 "mediaType" => content_type,
65 Creates a tempfile using the Plug.Upload Genserver which cleans them up
68 def tempfile_for_image(data) do
69 {:ok, tmp_path} = Plug.Upload.random_file("profile_pics")
70 {:ok, tmp_file} = File.open(tmp_path, [:write, :raw, :binary])
71 IO.binwrite(tmp_file, data)
76 def strip_exif_data(content_type, file) do
77 settings = Application.get_env(:pleroma, Pleroma.Upload)
78 do_strip = Keyword.fetch!(settings, :strip_exif)
79 [filetype, _ext] = String.split(content_type, "/")
81 if filetype == "image" and do_strip == true do
82 Mogrify.open(file) |> Mogrify.custom("strip") |> Mogrify.save(in_place: true)
86 defp create_name(uuid, ext, type) do
88 "application/octet-stream" ->
89 String.downcase(Enum.join([uuid, ext], "."))
92 String.downcase(Enum.join([uuid, "mp3"], "."))
95 String.downcase(Enum.join([uuid, List.last(String.split(type, "/"))], "."))
99 defp get_uuid(file, should_dedupe) do
101 Base.encode16(:crypto.hash(:sha256, File.read!(file.path)))
107 defp get_name(file, uuid, type, should_dedupe) do
109 create_name(uuid, List.last(String.split(file.filename, ".")), type)
111 parts = String.split(file.filename, ".")
114 if length(parts) > 1 do
115 Enum.drop(parts, -1) |> Enum.join(".")
121 "application/octet-stream" -> file.filename
122 "audio/mpeg" -> new_filename <> ".mp3"
123 "image/jpeg" -> new_filename <> ".jpg"
124 _ -> Enum.join([new_filename, String.split(type, "/") |> List.last()], ".")
129 def get_content_type(file) do
131 File.open(file, [:read], fn f ->
132 case IO.binread(f, 8) do
133 <<0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A>> ->
136 <<0x47, 0x49, 0x46, 0x38, _, 0x61, _, _>> ->
139 <<0xFF, 0xD8, 0xFF, _, _, _, _, _>> ->
142 <<0x1A, 0x45, 0xDF, 0xA3, _, _, _, _>> ->
145 <<0x00, 0x00, 0x00, _, 0x66, 0x74, 0x79, 0x70>> ->
148 <<0x49, 0x44, 0x33, _, _, _, _, _>> ->
151 <<255, 251, _, 68, 0, 0, 0, 0>> ->
154 <<0x4F, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00>> ->
157 <<0x52, 0x49, 0x46, 0x46, _, _, _, _>> ->
161 "application/octet-stream"
167 _e -> "application/octet-stream"