mirror of
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38 lines
951 B
Elixir
38 lines
951 B
Elixir
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defmodule PlausibleWeb.Favicon do
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import Plug.Conn
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def init(_) do
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domains =
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case File.read(Application.app_dir(:plausible, "priv/referer_favicon_domains.json")) do
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{:ok, contents} ->
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Jason.decode!(contents)
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_ ->
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%{}
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end
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[favicon_domains: domains]
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end
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def call(conn, favicon_domains: favicon_domains) do
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case conn.path_info do
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["favicon", "sources", source] ->
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clean_source = URI.decode_www_form(source)
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domain = Map.get(favicon_domains, clean_source, clean_source)
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res = HTTPoison.get!("https://icons.duckduckgo.com/ip3/#{domain}.ico")
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conn =
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Enum.filter(res.headers, fn {key, _val} -> key != "Transfer-Encoding" end)
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|> Enum.reduce(conn, fn {key, val}, conn ->
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put_resp_header(conn, key, val)
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end)
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send_resp(conn, 200, res.body)
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|> halt
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_ ->
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conn
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end
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end
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end
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