56 lines
1.3 KiB
Elixir
56 lines
1.3 KiB
Elixir
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defmodule ZoeyscomputerWeb.DiscordPlug do
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alias ExAws.S3
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alias Zoeyscomputer.Images
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import Plug.Conn
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def init(opts), do: opts
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def call(%Plug.Conn{path_info: ["images", id]} = conn, _opts) do
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case Images.get_image_by!(id) do
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nil ->
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conn
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|> send_resp(404, "Image not found")
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|> halt()
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image ->
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serve_s3_image(conn, image)
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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 serve_s3_image(conn, image) do
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key = image.key
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bucket = "imgs"
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case download_from_s3(bucket, key) do
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{:ok, image_binary, content_type} ->
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conn
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|> put_resp_header("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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conn
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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, key) |> ExAws.request() do
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{:ok, %{body: image_binary, headers: headers}} ->
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content_type =
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Enum.find_value(headers, fn
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{"Content-Type", value} -> value
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{"content-type", value} -> value
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end)
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{:ok, image_binary, content_type || "application/octet-stream"}
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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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