90 lines
2.4 KiB
Elixir
90 lines
2.4 KiB
Elixir
defmodule Pleroma.Upload do
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alias Ecto.UUID
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alias Pleroma.Web
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def store(%Plug.Upload{} = file) do
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uuid = UUID.generate
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upload_folder = Path.join(upload_path(), uuid)
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File.mkdir_p!(upload_folder)
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result_file = Path.join(upload_folder, file.filename)
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File.cp!(file.path, result_file)
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# fix content type on some image uploads
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content_type = if file.content_type == "application/octet-stream" do
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get_content_type(file.path)
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else
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file.content_type
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end
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%{
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"type" => "Image",
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"url" => [%{
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"type" => "Link",
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"mediaType" => content_type,
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"href" => url_for(Path.join(uuid, :cow_uri.urlencode(file.filename)))
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}],
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"name" => file.filename,
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"uuid" => uuid
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}
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end
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def store(%{"img" => "data:image/" <> image_data}) do
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parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
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data = Base.decode64!(parsed["data"])
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uuid = UUID.generate
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upload_folder = Path.join(upload_path(), uuid)
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File.mkdir_p!(upload_folder)
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filename = Base.encode16(:crypto.hash(:sha256, data)) <> ".#{parsed["filetype"]}"
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result_file = Path.join(upload_folder, filename)
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File.write!(result_file, data)
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content_type = "image/#{parsed["filetype"]}"
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%{
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"type" => "Image",
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"url" => [%{
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"type" => "Link",
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"mediaType" => content_type,
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"href" => url_for(Path.join(uuid, :cow_uri.urlencode(filename)))
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}],
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"name" => filename,
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"uuid" => uuid
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}
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end
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defp upload_path do
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settings = Application.get_env(:pleroma, Pleroma.Upload)
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Keyword.fetch!(settings, :uploads)
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end
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defp url_for(file) do
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"#{Web.base_url()}/media/#{file}"
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end
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def get_content_type(file) do
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# PNG: 89 50 4E 47 0D 0A 1A 0A
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# GIF: 47 49 46 38 37 61
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# GIF: 47 49 46 38 39 61
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# JPEG: FF D8 FF DB
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# JPEG: FF D8 FF E0 ?? ?? 4A 46 49 46 00 01
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# JPEG: FF D8 FF E1 ?? ?? 45 78 69 66 00 00
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match = File.open(file, [:read], fn(f) ->
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case IO.binread(f, 8) do
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<<0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a>> ->
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"image/png"
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<<0x47, 0x49, 0x46, 0x38, _, 0x61, _, _>> ->
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"image/gif"
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<<0xff, 0xd8, 0xff, _, _, _, _, _>> ->
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"image/jpeg"
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_ ->
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"application/octet-stream"
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end
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end)
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case match do
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{:ok, type} -> type
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_e -> "application/octet-stream"
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end
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end
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end
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