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97b24c0492
* Add SSO link with signed JWT token * Falls back to Nolt URL without SSO if token cannot be generated * Add profile image (gravatar) to Nolt SSO link * Improve navbar dropdown * Add 'contact support' link to nav dropdown * Add CSS rule to prevent horizontal jumps * Dark mode styling * Close dropdown when link is clicked * Clarify links in dropdown * Clarify CSS comment * Use Alpine.data() over window * Rename suggestions_dropdown -> combo-box * Mix format * Make logout link look good on dark mode * Use proxy for gravatar * Do not use Gravatar proxy in self-hosted * Changelog * Add Github Repo link to nav dropdown * Make dialyzer happy * Add proxy for Gravatar * Update assets/css/app.css Co-authored-by: hq1 <hq@mtod.org> * Update lib/plausible_web/controllers/avatar_controller.ex Co-authored-by: hq1 <hq@mtod.org> * Fix alpine <> Liveview integration --------- Co-authored-by: hq1 <hq@mtod.org>
39 lines
1.5 KiB
Elixir
39 lines
1.5 KiB
Elixir
defmodule PlausibleWeb.AvatarController do
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@moduledoc """
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This module proxies requests to BASE_URL/avatar/:hash to www.gravatar.com/avatar/:hash.
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The purpose is to make use of Gravatar's convenient avatar service without exposing information
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that could be used for tracking the Plausible user. Compared to requesting the Gravatar directly
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from the browser, this proxy module protects the Plausible user from disclosing to Gravatar:
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1. The client IP address
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2. User-Agent
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3. Referer header which can be used to track which site the user is visiting (i.e. plausible.io or self-hosted URL)
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The downside is the added latency from the request having to go through the Plausible server, rather than contacting the
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local CDN server operated by Gravatar's service.
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"""
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use PlausibleWeb, :controller
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alias Plausible.HTTPClient
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@gravatar_base_url "https://www.gravatar.com"
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def avatar(conn, params) do
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url = Path.join(@gravatar_base_url, ["avatar/", params["hash"]]) <> "?s=150&d=identicon"
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case HTTPClient.impl().get(url) do
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{:ok, %Finch.Response{status: 200, body: body, headers: headers}} ->
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conn
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|> forward_headers(headers)
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|> send_resp(200, body)
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{:error, _} ->
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send_resp(conn, 400, "")
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end
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end
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@forwarded_headers ["content-type", "cache-control", "expires"]
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defp forward_headers(conn, headers) do
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headers_to_forward = Enum.filter(headers, fn {k, _} -> k in @forwarded_headers end)
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%Plug.Conn{conn | resp_headers: headers_to_forward}
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end
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end
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