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https://github.com/plausible/analytics.git
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8f6224b5de
* Add revenue average and total to Goal Conversions * Add revenue option to tracker script * Simplify revenue tracker script
78 lines
2.0 KiB
Elixir
78 lines
2.0 KiB
Elixir
defmodule PlausibleWeb.Tracker do
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import Plug.Conn
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use Agent
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base_variants = [
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"hash",
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"outbound-links",
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"exclusions",
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"compat",
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"local",
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"manual",
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"file-downloads",
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"pageview-props",
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"tagged-events",
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"revenue"
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]
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# Generates Power Set of all variants
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variants =
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1..Enum.count(base_variants)
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|> Enum.map(fn x ->
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Combination.combine(base_variants, x)
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|> Enum.map(fn y -> Enum.sort(y) |> Enum.join(".") end)
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end)
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|> List.flatten()
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@base_filenames ["plausible", "script", "analytics"]
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@files_available ["plausible.js", "p.js"] ++ Enum.map(variants, fn v -> "plausible.#{v}.js" end)
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def init(opts) do
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Keyword.merge(opts, files_available: MapSet.new(@files_available))
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end
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def call(conn, files_available: files_available) do
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filename =
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case conn.request_path do
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"/js/p.js" ->
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"p.js"
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"/js/" <> requested_filename ->
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sorted_script_variant(requested_filename)
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_ ->
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nil
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end
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if filename && MapSet.member?(files_available, filename) do
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location = Application.app_dir(:plausible, "priv/tracker/js/" <> filename)
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conn
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|> put_resp_header("content-type", "application/javascript")
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|> put_resp_header("x-content-type-options", "nosniff")
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|> put_resp_header("cross-origin-resource-policy", "cross-origin")
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|> put_resp_header("access-control-allow-origin", "*")
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|> put_resp_header("cache-control", "public, max-age=86400, must-revalidate")
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|> send_file(200, location)
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|> halt()
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else
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conn
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end
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end
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defp sorted_script_variant(requested_filename) do
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case String.split(requested_filename, ".") do
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[base_filename | rest] when base_filename in @base_filenames ->
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sorted_variants =
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rest
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|> List.delete("js")
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|> Enum.sort()
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Enum.join(["plausible"] ++ sorted_variants ++ ["js"], ".")
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_ ->
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nil
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end
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end
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end
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