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