53 lines
1.3 KiB
Elixir
53 lines
1.3 KiB
Elixir
defmodule ZoeyscomputerWeb.DiscordHandler do
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alias ExAws.S3
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import Plug.Conn
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import Mogrify
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def init(opts), do: opts
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def call(%{path_info: ["images", _id]} = conn, _opts) do
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handle_discord(conn)
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case get_req_header(conn, "user-agent") do
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["Mozilla/5.0 (compatible; Discordbot/" <> _rest] -> handle_discord(conn)
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_ -> conn
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end
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end
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def call(conn, _opts), do: conn
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defp handle_discord(%{path_info: ["images", id]} = conn) do
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case download_from_s3("imgs", id) do
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{:ok, image_binary, content_type} ->
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conn
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|> put_resp_content_type(content_type)
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|> send_resp(200, image_binary)
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|> halt()
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{:error, reason} ->
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IO.inspect(reason)
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conn
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|> put_resp_content_type("text/plain")
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|> send_resp(500, "Failed to retrieve image")
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|> halt()
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end
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end
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defp download_from_s3(bucket, key) do
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case S3.get_object(bucket, "uploads/#{key}.png") |> ExAws.request() do
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{:ok, %{body: image_binary}} ->
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local_path = "/tmp/#{key}.png"
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File.write!(local_path, image_binary)
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image = open(local_path) |> format("webp") |> save()
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{:ok, file_binary} = File.read(image.path)
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{:ok, file_binary, "image/webp"}
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error ->
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error
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end
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end
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end
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