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mirror of https://github.com/imgproxy/imgproxy.git synced 2024-11-29 08:22:11 +02:00
imgproxy/examples/signature.ex
2022-09-03 00:58:54 +06:00

22 lines
587 B
Elixir

defmodule App.Imgproxy do
@key Base.decode16!("943b421c9eb07c830af81030552c86009268de4e532ba2ee2eab8247c6da0881", case: :lower)
@salt Base.decode16!("520f986b998545b4785e0defbc4f3c1203f22de2374a3d53cb7a7fe9fea309c5", case: :lower)
def sign_path(path) do
signature = gen_signature(path)
Path.join(["/", signature, path])
end
defp gen_signature(path) do
:sha256
|> :crypto.hmac(@key, @salt <> path)
|> Base.url_encode64(padding: false)
end
end
# Usage
#
# App.Imgproxy.sign_path(
# "/rs:fit:300:300/plain/https://myawesomedomain.com/raw-image.png"
# )