diff options
Diffstat (limited to 'lib/pleroma/upload/filter')
-rw-r--r-- | lib/pleroma/upload/filter/exiftool.ex | 26 | ||||
-rw-r--r-- | lib/pleroma/upload/filter/mogrifun.ex | 15 | ||||
-rw-r--r-- | lib/pleroma/upload/filter/mogrify.ex | 12 |
3 files changed, 46 insertions, 7 deletions
diff --git a/lib/pleroma/upload/filter/exiftool.ex b/lib/pleroma/upload/filter/exiftool.ex new file mode 100644 index 000000000..ea8798fe3 --- /dev/null +++ b/lib/pleroma/upload/filter/exiftool.ex @@ -0,0 +1,26 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Upload.Filter.Exiftool do + @moduledoc """ + Strips GPS related EXIF tags and overwrites the file in place. + Also strips or replaces filesystem metadata e.g., timestamps. + """ + @behaviour Pleroma.Upload.Filter + + @spec filter(Pleroma.Upload.t()) :: :ok | {:error, String.t()} + def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do + try do + case System.cmd("exiftool", ["-overwrite_original", "-gps:all=", file], parallelism: true) do + {_response, 0} -> :ok + {error, 1} -> {:error, error} + end + rescue + _e in ErlangError -> + {:error, "exiftool command not found"} + end + end + + def filter(_), do: :ok +end diff --git a/lib/pleroma/upload/filter/mogrifun.ex b/lib/pleroma/upload/filter/mogrifun.ex index 7d95577a4..c8fa7b190 100644 --- a/lib/pleroma/upload/filter/mogrifun.ex +++ b/lib/pleroma/upload/filter/mogrifun.ex @@ -6,6 +6,10 @@ defmodule Pleroma.Upload.Filter.Mogrifun do @behaviour Pleroma.Upload.Filter alias Pleroma.Upload.Filter + @moduledoc """ + This module is just an example of an Upload filter. It's not supposed to be used in production. + """ + @filters [ {"implode", "1"}, {"-raise", "20"}, @@ -34,10 +38,15 @@ defmodule Pleroma.Upload.Filter.Mogrifun do [{"fill", "yellow"}, {"tint", "40"}] ] + @spec filter(Pleroma.Upload.t()) :: :ok | {:error, String.t()} def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do - Filter.Mogrify.do_filter(file, [Enum.random(@filters)]) - - :ok + try do + Filter.Mogrify.do_filter(file, [Enum.random(@filters)]) + :ok + rescue + _e in ErlangError -> + {:error, "mogrify command not found"} + end end def filter(_), do: :ok diff --git a/lib/pleroma/upload/filter/mogrify.ex b/lib/pleroma/upload/filter/mogrify.ex index 2eb758006..7a45add5a 100644 --- a/lib/pleroma/upload/filter/mogrify.ex +++ b/lib/pleroma/upload/filter/mogrify.ex @@ -8,11 +8,15 @@ defmodule Pleroma.Upload.Filter.Mogrify do @type conversion :: action :: String.t() | {action :: String.t(), opts :: String.t()} @type conversions :: conversion() | [conversion()] + @spec filter(Pleroma.Upload.t()) :: :ok | {:error, String.t()} def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do - filters = Pleroma.Config.get!([__MODULE__, :args]) - - do_filter(file, filters) - :ok + try do + do_filter(file, Pleroma.Config.get!([__MODULE__, :args])) + :ok + rescue + _e in ErlangError -> + {:error, "mogrify command not found"} + end end def filter(_), do: :ok |