25 lines
637 B
Elixir
25 lines
637 B
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Upload.Filter.Dedupe do
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@behaviour Pleroma.Upload.Filter
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alias Pleroma.Upload
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def filter(%Upload{name: name, tempfile: tempfile} = upload) do
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extension =
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name
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|> String.split(".")
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|> List.last()
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shasum =
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:crypto.hash(:sha256, File.read!(tempfile))
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|> Base.encode16(case: :lower)
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filename = shasum <> "." <> extension
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{:ok, %Upload{upload | id: shasum, path: filename}}
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end
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def filter(_), do: :ok
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end
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