From 86b50596b9a2c93eb0463ea0112372677a2da9b7 Mon Sep 17 00:00:00 2001
From: Jamil Bou Kheir <jamil@elbii.com>
Date: Wed, 29 Dec 2021 06:24:08 -0600
Subject: [PATCH] Use URL_HOST if provided

---
 .../lib/fz_http_web/live/device_live/show.html.heex  |  4 ++--
 apps/fz_http/lib/fz_http_web/live_helpers.ex         | 12 ++++++++++++
 config/releases.exs                                  |  1 +
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/apps/fz_http/lib/fz_http_web/live/device_live/show.html.heex b/apps/fz_http/lib/fz_http_web/live/device_live/show.html.heex
index 5685717a2..001e03f1d 100644
--- a/apps/fz_http/lib/fz_http_web/live/device_live/show.html.heex
+++ b/apps/fz_http/lib/fz_http_web/live/device_live/show.html.heex
@@ -133,14 +133,14 @@
                   <div class="level-left">
                     <code id="shareable-link">
                       <%= if @device.config_token do %>
-                        <%= Routes.device_url(@socket, :config, @device.config_token) %>
+                        <%= shareable_link(@socket, @device) %>
                       <% end %>
                     </code>
                   </div>
                   <div class="level-right">
                     <%= if @device.config_token do %>
                       <button id="copy-shareable-link-button"
-                              data-clipboard={Routes.device_url(@socket, :config, @device.config_token)}
+                              data-clipboard={shareable_link(@socket, @device)}
                               data-target="shareable-link"
                               class="button"
                               data-tooltip="Click to copy"
diff --git a/apps/fz_http/lib/fz_http_web/live_helpers.ex b/apps/fz_http/lib/fz_http_web/live_helpers.ex
index 5e2d52d34..0ca11b19d 100644
--- a/apps/fz_http/lib/fz_http_web/live_helpers.ex
+++ b/apps/fz_http/lib/fz_http_web/live_helpers.ex
@@ -7,6 +7,7 @@ defmodule FzHttpWeb.LiveHelpers do
   import Phoenix.LiveView
   import Phoenix.LiveView.Helpers
   alias FzHttp.Users
+  alias FzHttpWeb.Router.Helpers, as: Routes
 
   import FzHttpWeb.ControllerHelpers, only: [root_path_for_role: 1]
 
@@ -63,6 +64,17 @@ defmodule FzHttpWeb.LiveHelpers do
     end
   end
 
+  @doc """
+  URL_HOST is used in releases to set an externally-accessible url. Use that if exists.
+  """
+  def shareable_link(socket, device) do
+    if url_host = Application.get_env(:fz_http, :url_host) do
+      "https://" <> url_host <> Routes.device_path(socket, :config, device.config_token)
+    else
+      Routes.device_url(socket, :config, device.config_token)
+    end
+  end
+
   defp status_digit(response_code) when is_integer(response_code) do
     [status_digit | _tail] = Integer.digits(response_code)
     status_digit
diff --git a/config/releases.exs b/config/releases.exs
index 2d8d2dc6d..b92285521 100644
--- a/config/releases.exs
+++ b/config/releases.exs
@@ -92,6 +92,7 @@ config :fz_vpn,
   cli: FzVpn.CLI.Live
 
 config :fz_http,
+  url_host: url_host,
   connectivity_checks_enabled: connectivity_checks_enabled,
   connectivity_checks_interval: connectivity_checks_interval,
   admin_email: admin_email,