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author | Alex Gleason <alex@alexgleason.me> | 2022-01-03 13:40:19 -0600 |
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committer | Alex Gleason <alex@alexgleason.me> | 2022-01-03 13:40:19 -0600 |
commit | 4081be0001332bac402faec7565807df088b0117 (patch) | |
tree | a5305404e9bb31b3613dbc9631d36f8827be81c2 /lib/pleroma/mime.ex | |
parent | d00f74e036735c1c238f661076f2925b39daa6ac (diff) | |
parent | a3094b64df344622f1bcb03091ef2ff4dce6da82 (diff) | |
download | pleroma-matrix.tar.gz |
Merge remote-tracking branch 'origin/develop' into matrixmatrix
Diffstat (limited to 'lib/pleroma/mime.ex')
-rw-r--r-- | lib/pleroma/mime.ex | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/lib/pleroma/mime.ex b/lib/pleroma/mime.ex deleted file mode 100644 index 6ee055f50..000000000 --- a/lib/pleroma/mime.ex +++ /dev/null @@ -1,120 +0,0 @@ -# Pleroma: A lightweight social networking server -# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> -# SPDX-License-Identifier: AGPL-3.0-only - -defmodule Pleroma.MIME do - @moduledoc """ - Returns the mime-type of a binary and optionally a normalized file-name. - """ - @default "application/octet-stream" - @read_bytes 35 - - @spec file_mime_type(String.t(), String.t()) :: - {:ok, content_type :: String.t(), filename :: String.t()} | {:error, any()} | :error - def file_mime_type(path, filename) do - with {:ok, content_type} <- file_mime_type(path), - filename <- fix_extension(filename, content_type) do - {:ok, content_type, filename} - end - end - - @spec file_mime_type(String.t()) :: {:ok, String.t()} | {:error, any()} | :error - def file_mime_type(filename) do - File.open(filename, [:read], fn f -> - check_mime_type(IO.binread(f, @read_bytes)) - end) - end - - def bin_mime_type(binary, filename) do - with {:ok, content_type} <- bin_mime_type(binary), - filename <- fix_extension(filename, content_type) do - {:ok, content_type, filename} - end - end - - @spec bin_mime_type(binary()) :: {:ok, String.t()} | :error - def bin_mime_type(<<head::binary-size(@read_bytes), _::binary>>) do - {:ok, check_mime_type(head)} - end - - def bin_mime_type(_), do: :error - - def mime_type(<<_::binary>>), do: {:ok, @default} - - defp fix_extension(filename, content_type) do - parts = String.split(filename, ".") - - new_filename = - if length(parts) > 1 do - Enum.drop(parts, -1) |> Enum.join(".") - else - Enum.join(parts) - end - - cond do - content_type == "application/octet-stream" -> - filename - - ext = List.first(MIME.extensions(content_type)) -> - new_filename <> "." <> ext - - true -> - Enum.join([new_filename, String.split(content_type, "/") |> List.last()], ".") - end - end - - defp check_mime_type(<<0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, _::binary>>) do - "image/png" - end - - defp check_mime_type(<<0x47, 0x49, 0x46, 0x38, _, 0x61, _::binary>>) do - "image/gif" - end - - defp check_mime_type(<<0xFF, 0xD8, 0xFF, _::binary>>) do - "image/jpeg" - end - - defp check_mime_type(<<0x1A, 0x45, 0xDF, 0xA3, _::binary>>) do - "video/webm" - end - - defp check_mime_type(<<0x00, 0x00, 0x00, _, 0x66, 0x74, 0x79, 0x70, _::binary>>) do - "video/mp4" - end - - defp check_mime_type(<<0x49, 0x44, 0x33, _::binary>>) do - "audio/mpeg" - end - - defp check_mime_type(<<255, 251, _, 68, 0, 0, 0, 0, _::binary>>) do - "audio/mpeg" - end - - defp check_mime_type( - <<0x4F, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00, _::size(160), 0x80, 0x74, 0x68, 0x65, - 0x6F, 0x72, 0x61, _::binary>> - ) do - "video/ogg" - end - - defp check_mime_type(<<0x4F, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00, _::binary>>) do - "audio/ogg" - end - - defp check_mime_type(<<"RIFF", _::binary-size(4), "WAVE", _::binary>>) do - "audio/wav" - end - - defp check_mime_type(<<"RIFF", _::binary-size(4), "WEBP", _::binary>>) do - "image/webp" - end - - defp check_mime_type(<<"RIFF", _::binary-size(4), "AVI.", _::binary>>) do - "video/avi" - end - - defp check_mime_type(_) do - @default - end -end |