git.squeep.com Git - akkoma/blob - lib/pleroma/upload/filter/dedupe.ex

   1 defmodule Pleroma.Upload.Filter.Dedupe do
   2   @behaviour Pleroma.Upload.Filter
   3   alias Pleroma.Upload
   4
   5   def filter(upload = %Upload{name: name}) do
   6     extension = String.split(name, ".") |> List.last()
   7     shasum = :crypto.hash(:sha256, File.read!(upload.tempfile)) |> Base.encode16(case: :lower)
   8     filename = shasum <> "." <> extension
   9     {:ok, %Upload{upload | id: shasum, path: filename}}
  10   end
  11 end