58 lines
1.5 KiB
Elixir
58 lines
1.5 KiB
Elixir
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defmodule ShootingEventPhxWeb.FrontendController do
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use ShootingEventPhxWeb, :controller
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def serve(conn, %{"path" => segments}) do
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request_path =
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segments
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|> List.wrap()
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|> Enum.join("/")
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|> String.trim_leading("/")
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if String.starts_with?(request_path, "api") do
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send_resp(conn, 404, "Not Found")
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else
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web_dir = web_dir()
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requested = if request_path == "", do: "index.html", else: request_path
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requested_file = safe_file_path(web_dir, requested)
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cond do
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requested_file != nil and File.regular?(requested_file) ->
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send_static_file(conn, requested_file)
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File.regular?(Path.join(web_dir, "index.html")) ->
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send_static_file(conn, Path.join(web_dir, "index.html"))
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true ->
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send_resp(conn, 404, "frontend build not found. run make build")
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end
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end
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end
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defp web_dir do
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System.get_env("WEB_DIR") || Path.expand("../frontend/dist", File.cwd!())
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end
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defp safe_file_path(web_dir, request_path) do
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cleaned = request_path |> Path.expand(web_dir)
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root = Path.expand(web_dir)
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if String.starts_with?(cleaned, root) do
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cleaned
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else
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nil
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end
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end
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defp send_static_file(conn, file_path) do
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content_type =
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case MIME.from_path(file_path) do
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"" -> "application/octet-stream"
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type -> type
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end
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conn
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|> put_resp_content_type(content_type)
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|> send_file(200, file_path)
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end
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end
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