Shield: Country Rules (#3828)

* Migration: add country rules

* Add CountryRule schema

* Implement CountryRule cache

* Add country rules context interface

* Start country rules cache

* Lookup country rules on ingestion

* Remove :shields feature flag from test helpers

* Add nested sidebar menu for Shields

* Fix typo

* IP Rules: hide description on mobile view

* Prepare SiteController to handle multiple shield types

* Seed some country shield

* Implement LV for country rules

* Remove "YOU" indicator from country rules

* Fix small build

* Format

* Update typespecs

* Make docs link point at /countries

* Fix flash on top of modal for Safari

* Build the rule struct with site_id provided up-front

* Clarify why we're messaging the ComboBox component

* Re-open combobox suggestions after pressing Escape

* Update changelog

* Fix font size in country table cells

* Pass `added_by` via rule add options

* Display site's timezone timestamps in rule tooltips

* Display formatted timestamps in site's timezone

And simplify+test Timezone module; an input timestamp converted
to UTC can never be ambiguous.

* Remove no-op atom

* Display the maximum number of rules when reached

* Improve readability of remove button tests

* Credo

---------

Co-authored-by: Adrian Gruntkowski <adrian.gruntkowski@gmail.com>

CHANGELOG.md

@@ -2,6 +2,7 @@
 All notable changes to this project will be documented in this file.
 
 ### Added
+- County Block List in Site Settings
 - Query the `views_per_visit` metric based on imported data as well if possible
 - Group `operating_system_versions` by `operating_system` in Stats API breakdown
 - Add `operating_system_versions.csv` into the CSV export

assets/js/liveview/combo-box.js

@@ -18,8 +18,10 @@ export default (id) => ({
     this.selectionInProgress = false;
   },
   open() {
+    if (!this.isOpen) {
       this.initFocus()
       this.isOpen = true
+    }
   },
   suggestionsCount() {
     return this.$refs.suggestions?.querySelectorAll('li').length
@@ -65,7 +67,7 @@ export default (id) => ({
   focusNext() {
     const nextIndex = this.nextFocusableIndex()
 
-    if (!this.isOpen) this.open()
+    this.open()
 
     this.setFocus(nextIndex)
     this.scrollTo(nextIndex)
@@ -73,7 +75,7 @@ export default (id) => ({
   focusPrev() {
     const prevIndex = this.prevFocusableIndex()
 
-    if (!this.isOpen) this.open()
+    this.open()
 
     this.setFocus(prevIndex)
     this.scrollTo(prevIndex)

lib/plausible/application.ex

@@ -59,6 +59,21 @@ defmodule Plausible.Application do
          interval: :timer.seconds(35),
          warmer_fn: :refresh_updated_recently
        ]},
+      {Plausible.Shield.CountryRuleCache, []},
+      {Plausible.Cache.Warmer,
+       [
+         child_name: Plausible.Shield.CountryRuleCache.All,
+         cache_impl: Plausible.Shield.CountryRuleCache,
+         interval: :timer.minutes(3) + Enum.random(1..:timer.seconds(10)),
+         warmer_fn: :refresh_all
+       ]},
+      {Plausible.Cache.Warmer,
+       [
+         child_name: Plausible.Shield.CountryRuleCache.RecentlyUpdated,
+         cache_impl: Plausible.Shield.CountryRuleCache,
+         interval: :timer.seconds(35),
+         warmer_fn: :refresh_updated_recently
+       ]},
       {Plausible.Auth.TOTP.Vault, key: totp_vault_key()},
       PlausibleWeb.Endpoint,
       {Oban, Application.get_env(:plausible, Oban)},

lib/plausible/ingestion/event.ex

@@ -27,6 +27,7 @@ defmodule Plausible.Ingestion.Event do
           | :invalid
           | :dc_ip
           | :site_ip_blocklist
+          | :site_country_blocklist
 
   @type t() :: %__MODULE__{
           domain: String.t() | nil,
@@ -97,11 +98,12 @@ defmodule Plausible.Ingestion.Event do
     [
       &drop_datacenter_ip/1,
       &drop_shield_rule_ip/1,
+      &put_geolocation/1,
+      &drop_shield_rule_country/1,
       &put_user_agent/1,
       &put_basic_info/1,
       &put_referrer/1,
       &put_utm_tags/1,
-      &put_geolocation/1,
       &put_props/1,
       &put_revenue/1,
       &put_salts/1,
@@ -232,6 +234,21 @@ defmodule Plausible.Ingestion.Event do
     end
   end
 
+  defp drop_shield_rule_country(
+         %__MODULE__{domain: domain, clickhouse_event_attrs: %{country_code: cc}} = event
+       )
+       when is_binary(domain) and is_binary(cc) do
+    case Plausible.Shield.CountryRuleCache.get({domain, String.upcase(cc)}) do
+      %Plausible.Shield.CountryRule{action: :deny} ->
+        drop(event, :site_country_blocklist)
+
+      _ ->
+        event
+    end
+  end
+
+  defp drop_shield_rule_country(%__MODULE__{} = event), do: event
+
   defp put_props(%__MODULE__{request: %{props: %{} = props}} = event) do
     # defensive: ensuring the keys/values are always in the same order
     {keys, values} = Enum.unzip(props)

lib/plausible/shield/country_rule.ex

@@ -0,0 +1,38 @@
+defmodule Plausible.Shield.CountryRule do
+  @moduledoc """
+  Schema for Country Block List
+  """
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @type t() :: %__MODULE__{}
+
+  @primary_key {:id, :binary_id, autogenerate: true}
+  schema "shield_rules_country" do
+    belongs_to :site, Plausible.Site
+    field :country_code, :string
+    field :action, Ecto.Enum, values: [:deny, :allow], default: :deny
+    field :added_by, :string
+
+    # If `from_cache?` is set, the struct might be incomplete - see `Plausible.Site.Shield.Rules.Country.Cache`
+    field :from_cache?, :boolean, virtual: true, default: false
+    timestamps()
+  end
+
+  def changeset(rule, attrs) do
+    rule
+    |> cast(attrs, [:site_id, :country_code])
+    |> validate_required([:site_id, :country_code])
+    |> validate_length(:country_code, is: 2)
+    |> Ecto.Changeset.validate_change(:country_code, fn :country_code, cc ->
+      if cc in Enum.map(Location.Country.all(), & &1.alpha_2) do
+        []
+      else
+        [country_code: "is invalid"]
+      end
+    end)
+    |> unique_constraint(:country_code,
+      name: :shield_rules_country_site_id_country_code_index
+    )
+  end
+end

lib/plausible/shield/country_rule_cache.ex

@@ -0,0 +1,65 @@
+defmodule Plausible.Shield.CountryRuleCache do
+  @moduledoc """
+  Allows retrieving Country Rules by domain and country code
+  """
+  alias Plausible.Shield.CountryRule
+
+  import Ecto.Query
+  use Plausible.Cache
+
+  @cache_name :country_blocklist_by_domain
+
+  @cached_schema_fields ~w(
+    id
+    country_code
+    action
+  )a
+
+  @impl true
+  def name(), do: @cache_name
+
+  @impl true
+  def child_id(), do: :cachex_country_blocklist
+
+  @impl true
+  def count_all() do
+    Plausible.Repo.aggregate(CountryRule, :count)
+  end
+
+  @impl true
+  def base_db_query() do
+    from rule in CountryRule,
+      inner_join: s in assoc(rule, :site),
+      select: {
+        s.domain,
+        s.domain_changed_from,
+        %{struct(rule, ^@cached_schema_fields) | from_cache?: true}
+      }
+  end
+
+  @impl true
+  def get_from_source({domain, country_code}) do
+    query =
+      base_db_query()
+      |> where([rule, site], rule.country_code == ^country_code and site.domain == ^domain)
+
+    case Plausible.Repo.one(query) do
+      {_, _, rule} -> %CountryRule{rule | from_cache?: false}
+      _any -> nil
+    end
+  end
+
+  @impl true
+  def unwrap_cache_keys(items) do
+    Enum.reduce(items, [], fn
+      {domain, nil, object}, acc ->
+        [{{domain, String.upcase(object.country_code)}, object} | acc]
+
+      {domain, domain_changed_from, object}, acc ->
+        [
+          {{domain, String.upcase(object.country_code)}, object},
+          {{domain_changed_from, String.upcase(object.country_code)}, object} | acc
+        ]
+    end)
+  end
+end

lib/plausible/shield/ip_rule.ex

@@ -22,7 +22,7 @@ defmodule Plausible.Shield.IPRule do
 
   def changeset(rule, attrs) do
     rule
-    |> cast(attrs, [:site_id, :inet, :description, :added_by])
+    |> cast(attrs, [:site_id, :inet, :description])
     |> validate_required([:site_id, :inet])
     |> disallow_netmask(:inet)
     |> unique_constraint(:inet,

lib/plausible/shields.ex

@@ -5,38 +5,93 @@ defmodule Plausible.Shields do
   import Ecto.Query
   alias Plausible.Repo
   alias Plausible.Shield
+  alias Plausible.Site
 
   @maximum_ip_rules 30
   def maximum_ip_rules(), do: @maximum_ip_rules
 
-  @spec list_ip_rules(Plausible.Site.t() | non_neg_integer()) :: [Shield.IPRule.t()]
-  def list_ip_rules(site_id) when is_integer(site_id) do
+  @maximum_country_rules 30
+  def maximum_country_rules(), do: @maximum_country_rules
+
+  @spec list_ip_rules(Site.t() | non_neg_integer()) :: [Shield.IPRule.t()]
+  def list_ip_rules(site_or_id) do
+    list(Shield.IPRule, site_or_id)
+  end
+
+  @spec add_ip_rule(Site.t() | non_neg_integer(), map(), Keyword.t()) ::
+          {:ok, Shield.IPRule.t()} | {:error, Ecto.Changeset.t()}
+  def add_ip_rule(site_or_id, params, opts \\ []) do
+    opts =
+      Keyword.put(opts, :limit, {:inet, @maximum_ip_rules})
+
+    add(Shield.IPRule, site_or_id, params, opts)
+  end
+
+  @spec remove_ip_rule(Site.t() | non_neg_integer(), String.t()) :: :ok
+  def remove_ip_rule(site_or_id, rule_id) do
+    remove(Shield.IPRule, site_or_id, rule_id)
+  end
+
+  @spec count_ip_rules(Site.t() | non_neg_integer()) :: non_neg_integer()
+  def count_ip_rules(site_or_id) do
+    count(Shield.IPRule, site_or_id)
+  end
+
+  @spec list_country_rules(Site.t() | non_neg_integer()) :: [Shield.CountryRule.t()]
+  def list_country_rules(site_or_id) do
+    list(Shield.CountryRule, site_or_id)
+  end
+
+  @spec add_country_rule(Site.t() | non_neg_integer(), map(), Keyword.t()) ::
+          {:ok, Shield.CountryRule.t()} | {:error, Ecto.Changeset.t()}
+  def add_country_rule(site_or_id, params, opts \\ []) do
+    opts = Keyword.put(opts, :limit, {:country_code, @maximum_country_rules})
+    add(Shield.CountryRule, site_or_id, params, opts)
+  end
+
+  @spec remove_country_rule(Site.t() | non_neg_integer(), String.t()) :: :ok
+  def remove_country_rule(site_or_id, rule_id) do
+    remove(Shield.CountryRule, site_or_id, rule_id)
+  end
+
+  @spec count_country_rules(Site.t() | non_neg_integer()) :: non_neg_integer()
+  def count_country_rules(site_or_id) do
+    count(Shield.CountryRule, site_or_id)
+  end
+
+  defp list(schema, %Site{id: id}) do
+    list(schema, id)
+  end
+
+  defp list(schema, site_id) when is_integer(site_id) do
     Repo.all(
-      from r in Shield.IPRule,
+      from r in schema,
         where: r.site_id == ^site_id,
         order_by: [desc: r.inserted_at]
     )
   end
 
-  def list_ip_rules(%Plausible.Site{id: id}) do
-    list_ip_rules(id)
+  defp add(schema, %Site{id: id}, params, opts) do
+    add(schema, id, params, opts)
   end
 
-  @spec add_ip_rule(Plausible.Site.t() | non_neg_integer(), map()) ::
-          {:ok, Shield.IPRule.t()} | {:error, Ecto.Changeset.t()}
-  def add_ip_rule(site_id, params) when is_integer(site_id) do
+  defp add(schema, site_id, params, opts) when is_integer(site_id) do
+    {field, max} = Keyword.fetch!(opts, :limit)
+
     Repo.transaction(fn ->
       result =
-        if count_ip_rules(site_id) >= @maximum_ip_rules do
+        if count(schema, site_id) >= max do
           changeset =
-            %Shield.IPRule{}
-            |> Shield.IPRule.changeset(Map.put(params, "site_id", site_id))
-            |> Ecto.Changeset.add_error(:inet, "maximum reached")
+            schema
+            |> struct(site_id: site_id)
+            |> schema.changeset(params)
+            |> Ecto.Changeset.add_error(field, "maximum reached")
 
           {:error, changeset}
         else
-          %Shield.IPRule{}
-          |> Shield.IPRule.changeset(Map.put(params, "site_id", site_id))
+          schema
+          |> struct(site_id: site_id, added_by: format_added_by(opts[:added_by]))
+          |> schema.changeset(params)
           |> Repo.insert()
         end
 
@@ -47,26 +102,23 @@ defmodule Plausible.Shields do
     end)
   end
 
-  def add_ip_rule(%Plausible.Site{id: id}, params) do
-    add_ip_rule(id, params)
+  defp remove(schema, %Site{id: id}, rule_id) do
+    remove(schema, id, rule_id)
   end
 
-  @spec remove_ip_rule(Plausible.Site.t() | non_neg_integer(), String.t()) :: :ok
-  def remove_ip_rule(site_id, rule_id) when is_integer(site_id) do
-    Repo.delete_all(from(r in Shield.IPRule, where: r.site_id == ^site_id and r.id == ^rule_id))
+  defp remove(schema, site_id, rule_id) when is_integer(site_id) do
+    Repo.delete_all(from(r in schema, where: r.site_id == ^site_id and r.id == ^rule_id))
     :ok
   end
 
-  def remove_ip_rule(%Plausible.Site{id: site_id}, rule_id) do
-    remove_ip_rule(site_id, rule_id)
+  defp count(schema, %Site{id: id}) do
+    count(schema, id)
   end
 
-  @spec count_ip_rules(Plausible.Site.t() | non_neg_integer()) :: non_neg_integer()
-  def count_ip_rules(site_id) when is_integer(site_id) do
-    Repo.aggregate(from(r in Shield.IPRule, where: r.site_id == ^site_id), :count)
+  defp count(schema, site_id) when is_integer(site_id) do
+    Repo.aggregate(from(r in schema, where: r.site_id == ^site_id), :count)
   end
 
-  def count_ip_rules(%Plausible.Site{id: id}) do
-    count_ip_rules(id)
-  end
+  defp format_added_by(nil), do: ""
+  defp format_added_by(%Plausible.Auth.User{} = user), do: "#{user.name} <#{user.email}>"
 end

lib/plausible/stats/breakdown.ex

@@ -34,14 +34,20 @@ defmodule Plausible.Stats.Breakdown do
 
     if !Keyword.get(opts, :skip_tracing), do: trace(query, property, metrics)
 
+    no_revenue = {nil, metrics -- @revenue_metrics}
+
     {revenue_goals, metrics} =
-      if full_build?() && Plausible.Billing.Feature.RevenueGoals.enabled?(site) do
+      on_full_build do
+        if Plausible.Billing.Feature.RevenueGoals.enabled?(site) do
           revenue_goals = Enum.filter(event_goals, &Plausible.Goal.Revenue.revenue?/1)
           metrics = if Enum.empty?(revenue_goals), do: metrics -- @revenue_metrics, else: metrics
 
           {revenue_goals, metrics}
         else
-        {nil, metrics -- @revenue_metrics}
+          no_revenue
+        end
+      else
+        no_revenue
       end
 
     metrics_to_select = Util.maybe_add_visitors_metric(metrics) -- @computed_metrics

lib/plausible/timezones.ex

@@ -22,25 +22,13 @@ defmodule Plausible.Timezones do
 
   @spec to_date_in_timezone(Date.t() | NaiveDateTime.t() | DateTime.t(), String.t()) :: Date.t()
   def to_date_in_timezone(dt, timezone) do
-    utc_dt =
-      case dt do
-        %Date{} ->
-          Timex.to_datetime(dt, "UTC")
-
-        dt ->
-          Timex.Timezone.convert(dt, "UTC")
+    to_datetime_in_timezone(dt, timezone) |> Timex.to_date()
   end
 
-    case Timex.Timezone.convert(utc_dt, timezone) do
-      %DateTime{} = tz_dt ->
-        Timex.to_date(tz_dt)
-
-      %Timex.AmbiguousDateTime{after: after_dt} ->
-        Timex.to_date(after_dt)
-
-      {:error, {:could_not_resolve_timezone, _, _, _}} ->
-        dt
-    end
+  @spec to_datetime_in_timezone(Date.t() | NaiveDateTime.t() | DateTime.t(), String.t()) ::
+          DateTime.t()
+  def to_datetime_in_timezone(dt, timezone) do
+    dt |> Timex.to_datetime("UTC") |> Timex.Timezone.convert(timezone)
   end
 
   defp build_option(timezone_code, acc, now) do

lib/plausible_web/controllers/site_controller.ex

@@ -253,13 +253,15 @@ defmodule PlausibleWeb.SiteController do
     )
   end
 
-  def settings_shields(conn, _params) do
+  def settings_shields(conn, %{"shield" => shield})
+      when shield in ["ip_addresses", "countries"] do
     site = conn.assigns.site
 
     conn
     |> render("settings_shields.html",
       site: site,
-      dogfood_page_path: "/:dashboard/settings/shields",
+      shield: shield,
+      dogfood_page_path: "/:dashboard/settings/shields/#{shield}",
       connect_live_socket: true,
       layout: {PlausibleWeb.LayoutView, "site_settings.html"}
     )

lib/plausible_web/live/components/combo_box.ex

@@ -22,7 +22,7 @@ defmodule PlausibleWeb.Live.Components.ComboBox do
   and updates the suggestions asynchronously. This way, you can render
   the component without having to wait for suggestions to load.
 
-  If you explicitly need to make the operation sychronous, you may
+  If you explicitly need to make the operation synchronous, you may
   pass `async={false}` option.
 
   If your initial `options` are not provided up-front at initial render,
@@ -101,6 +101,7 @@ defmodule PlausibleWeb.Live.Components.ComboBox do
             placeholder={@placeholder}
             x-on:focus="open"
             phx-change="search"
+            x-on:keydown="open"
             phx-target={@myself}
             phx-debounce={200}
             value={@display_value}

lib/plausible_web/live/components/modal.ex

@@ -134,7 +134,7 @@ defmodule PlausibleWeb.Live.Components.Modal do
     ~H"""
     <div
       id={@id}
-      class="relative z-50 [&[data-phx-ref]_div.modal-dialog]:hidden [&[data-phx-ref]_div.modal-loading]:block"
+      class="relative z-[49] [&[data-phx-ref]_div.modal-dialog]:hidden [&[data-phx-ref]_div.modal-loading]:block"
       data-modal
       x-cloak
       x-data="{

lib/plausible_web/live/shields/countries.ex

@@ -0,0 +1,53 @@
+defmodule PlausibleWeb.Live.Shields.Countries do
+  @moduledoc """
+  LiveView for IP Addresses Shield
+  """
+  use PlausibleWeb, :live_view
+  use Phoenix.HTML
+
+  alias Plausible.Shields
+  alias Plausible.Sites
+
+  def mount(
+        _params,
+        %{
+          "domain" => domain,
+          "current_user_id" => user_id
+        },
+        socket
+      ) do
+    socket =
+      socket
+      |> assign_new(:site, fn ->
+        Sites.get_for_user!(user_id, domain, [:owner, :admin, :super_admin])
+      end)
+      |> assign_new(:country_rules_count, fn %{site: site} ->
+        Shields.count_country_rules(site)
+      end)
+      |> assign_new(:current_user, fn ->
+        Plausible.Repo.get(Plausible.Auth.User, user_id)
+      end)
+
+    {:ok, socket}
+  end
+
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.flash_messages flash={@flash} />
+      <.live_component
+        module={PlausibleWeb.Live.Shields.CountryRules}
+        current_user={@current_user}
+        country_rules_count={@country_rules_count}
+        site={@site}
+        id="country-rules-#{@current_user.id}"
+      />
+    </div>
+    """
+  end
+
+  def handle_info({:flash, kind, message}, socket) do
+    socket = put_live_flash(socket, kind, message)
+    {:noreply, socket}
+  end
+end

lib/plausible_web/live/shields/country_rules.ex

@@ -0,0 +1,251 @@
+defmodule PlausibleWeb.Live.Shields.CountryRules do
+  @moduledoc """
+  LiveView allowing Country Rules management
+  """
+
+  use Phoenix.LiveComponent, global_prefixes: ~w(x-)
+  use Phoenix.HTML
+
+  alias PlausibleWeb.Live.Components.Modal
+  alias Plausible.Shields
+  alias Plausible.Shield
+
+  def update(assigns, socket) do
+    socket =
+      socket
+      |> assign(
+        country_rules_count: assigns.country_rules_count,
+        site: assigns.site,
+        current_user: assigns.current_user,
+        form: new_form()
+      )
+      |> assign_new(:country_rules, fn %{site: site} ->
+        Shields.list_country_rules(site)
+      end)
+
+    {:ok, socket}
+  end
+
+  def render(assigns) do
+    ~H"""
+    <section class="shadow bg-white dark:bg-gray-800 sm:rounded-md sm:overflow-hidden">
+      <div class="py-6 px-4 sm:p-6">
+        <header class="relative">
+          <h2 class="text-lg leading-6 font-medium text-gray-900 dark:text-gray-100">
+            Country Block List
+          </h2>
+          <p class="mt-1 mb-4 text-sm leading-5 text-gray-500 dark:text-gray-200">
+            Reject incoming traffic from specific countries
+          </p>
+
+          <PlausibleWeb.Components.Generic.docs_info slug="countries" />
+        </header>
+        <div class="border-t border-gray-200 pt-4 grid">
+          <div
+            :if={@country_rules_count < Shields.maximum_country_rules()}
+            class="mt-4 sm:ml-4 sm:mt-0 justify-self-end"
+          >
+            <PlausibleWeb.Components.Generic.button
+              id="add-country-rule"
+              x-data
+              x-on:click={Modal.JS.open("country-rule-form-modal")}
+            >
+              + Add Country
+            </PlausibleWeb.Components.Generic.button>
+          </div>
+          <PlausibleWeb.Components.Generic.notice
+            :if={@country_rules_count >= Shields.maximum_country_rules()}
+            class="mt-4"
+            title="Maximum number of countries reached"
+          >
+            <p>
+              You've reached the maximum number of countries you can block (<%= Shields.maximum_country_rules() %>). Please remove one before adding another.
+            </p>
+          </PlausibleWeb.Components.Generic.notice>
+        </div>
+
+        <.live_component module={Modal} id="country-rule-form-modal">
+          <.form
+            :let={f}
+            for={@form}
+            phx-submit="save-country-rule"
+            phx-target={@myself}
+            class="max-w-md w-full mx-auto bg-white dark:bg-gray-800"
+          >
+            <h2 class="text-xl font-black dark:text-gray-100 mb-8">Add Country to Block List</h2>
+
+            <.live_component
+              submit_name="country_rule[country_code]"
+              submit_value={f[:country_code].value}
+              display_value=""
+              module={PlausibleWeb.Live.Components.ComboBox}
+              suggest_fun={&PlausibleWeb.Live.Components.ComboBox.StaticSearch.suggest/2}
+              id={f[:country_code].id}
+              suggestions_limit={300}
+              options={options(@country_rules)}
+            />
+
+            <p class="text-sm mt-2 text-gray-500 dark:text-gray-200">
+              Once added, we will start rejecting traffic from this country within a few minutes.
+            </p>
+            <div class="py-4 mt-8">
+              <PlausibleWeb.Components.Generic.button type="submit" class="w-full">
+                Add Country →
+              </PlausibleWeb.Components.Generic.button>
+            </div>
+          </.form>
+        </.live_component>
+
+        <p
+          :if={Enum.empty?(@country_rules)}
+          class="text-sm text-gray-800 dark:text-gray-200 mt-12 mb-8 text-center"
+        >
+          No Country Rules configured for this Site.
+        </p>
+        <div
+          :if={not Enum.empty?(@country_rules)}
+          class="mt-8 overflow-hidden border-b border-gray-200 shadow dark:border-gray-900 sm:rounded-lg"
+        >
+          <table class="min-w-full divide-y divide-gray-200 dark:divide-gray-900">
+            <thead class="bg-gray-50 dark:bg-gray-900">
+              <tr>
+                <th
+                  scope="col"
+                  class="px-6 py-3 text-xs font-medium text-left text-gray-500 uppercase dark:text-gray-100"
+                >
+                  Country
+                </th>
+                <th
+                  scope="col"
+                  class="px-6 py-3 text-xs font-medium text-left text-gray-500 uppercase dark:text-gray-100"
+                >
+                  Status
+                </th>
+                <th scope="col" class="px-6 py-3">
+                  <span class="sr-only">Remove</span>
+                </th>
+              </tr>
+            </thead>
+            <tbody>
+              <%= for rule <- @country_rules do %>
+                <% country = Location.Country.get_country(rule.country_code) %>
+                <tr class="text-gray-900 dark:text-gray-100">
+                  <td class="px-6 py-4 text-sm font-medium">
+                    <div class="flex items-center">
+                      <span
+                        id={"country-#{rule.id}"}
+                        class="mr-4 cursor-help border-b border-dotted border-gray-400"
+                        title={"Added at #{format_added_at(rule.inserted_at, @site.timezone)} by #{rule.added_by}"}
+                      >
+                        <%= country.flag %> <%= country.name %>
+                      </span>
+                    </div>
+                  </td>
+                  <td class="px-6 py-4 text-sm text-gray-500">
+                    <span :if={rule.action == :deny}>
+                      Blocked
+                    </span>
+                    <span :if={rule.action == :allow}>
+                      Allowed
+                    </span>
+                  </td>
+                  <td class="px-6 py-4 text-sm font-medium text-right">
+                    <button
+                      id={"remove-country-rule-#{rule.id}"}
+                      phx-target={@myself}
+                      phx-click="remove-country-rule"
+                      phx-value-rule-id={rule.id}
+                      class="text-sm text-red-600"
+                      data-confirm="Are you sure you want to revoke this rule?"
+                    >
+                      Remove
+                    </button>
+                  </td>
+                </tr>
+              <% end %>
+            </tbody>
+          </table>
+        </div>
+      </div>
+    </section>
+    """
+  end
+
+  def handle_event("save-country-rule", %{"country_rule" => params}, socket) do
+    user = socket.assigns.current_user
+
+    case Shields.add_country_rule(
+           socket.assigns.site.id,
+           Map.put(params, "added_by", "#{user.name} <#{user.email}>")
+         ) do
+      {:ok, rule} ->
+        country_rules = [rule | socket.assigns.country_rules]
+
+        socket =
+          socket
+          |> Modal.close("country-rule-form-modal")
+          |> assign(
+            form: new_form(),
+            country_rules: country_rules,
+            country_rules_count: socket.assigns.country_rules_count + 1
+          )
+
+        # Make sure to clear the combobox input after adding a country rule, on subsequent modal reopening
+        send_update(PlausibleWeb.Live.Components.ComboBox,
+          id: "country_rule_country_code",
+          display_value: ""
+        )
+
+        send_flash(
+          :success,
+          "Country rule added successfully. Traffic will be rejected within a few minutes."
+        )
+
+        {:noreply, socket}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign(socket, form: to_form(changeset))}
+    end
+  end
+
+  def handle_event("remove-country-rule", %{"rule-id" => rule_id}, socket) do
+    Shields.remove_country_rule(socket.assigns.site.id, rule_id)
+
+    send_flash(
+      :success,
+      "Country rule removed successfully. Traffic will be resumed within a few minutes."
+    )
+
+    {:noreply,
+     socket
+     |> assign(
+       country_rules_count: socket.assigns.country_rules_count - 1,
+       country_rules: Enum.reject(socket.assigns.country_rules, &(&1.id == rule_id))
+     )}
+  end
+
+  def send_flash(kind, message) do
+    send(self(), {:flash, kind, message})
+  end
+
+  defp new_form() do
+    %Shield.CountryRule{}
+    |> Shield.CountryRule.changeset(%{})
+    |> to_form()
+  end
+
+  defp options(country_rules) do
+    Location.Country.all()
+    |> Enum.sort_by(& &1.name)
+    |> Enum.map(fn c -> {c.alpha_2, c.flag <> " " <> c.name} end)
+    |> Enum.reject(fn {country_code, _} ->
+      country_code in Enum.map(country_rules, & &1.country_code)
+    end)
+  end
+
+  defp format_added_at(dt, tz) do
+    dt
+    |> Plausible.Timezones.to_datetime_in_timezone(tz)
+    |> Timex.format!("{YYYY}-{0M}-{0D} {h24}:{m}:{s}")
+  end
+end

lib/plausible_web/live/shields/ip_addresses.ex

@@ -1,8 +1,6 @@
-defmodule PlausibleWeb.Live.Shields.Tabs do
+defmodule PlausibleWeb.Live.Shields.IPAddresses do
   @moduledoc """
-  Currently only a placeholder module. Once more shields
-  are implemented it will display tabs with counters,
-  linking to their respective live views.
+  LiveView for IP Addresses Shield
   """
   use PlausibleWeb, :live_view
   use Phoenix.HTML
@@ -31,7 +29,6 @@ defmodule PlausibleWeb.Live.Shields.Tabs do
         Plausible.Repo.get(Plausible.Auth.User, user_id)
       end)
       |> assign_new(:remote_ip, fn -> remote_ip end)
-      |> assign(:current_tab, :ip_rules)
 
     {:ok, socket}
   end

lib/plausible_web/live/shields/ip_rules.ex

@@ -62,7 +62,7 @@ defmodule PlausibleWeb.Live.Shields.IPRules do
             title="Maximum number of addresses reached"
           >
             <p>
-              You've reached the maximum number of IP addresses you can block. Please remove one before adding another.
+              You've reached the maximum number of IP addresses you can block (<%= Shields.maximum_ip_rules() %>). Please remove one before adding another.
             </p>
           </PlausibleWeb.Components.Generic.notice>
         </div>
@@ -144,7 +144,7 @@ defmodule PlausibleWeb.Live.Shields.IPRules do
                 </th>
                 <th
                   scope="col"
-                  class="px-6 py-3 text-xs font-medium text-left text-gray-500 uppercase dark:text-gray-100"
+                  class="px-6 py-3 text-xs font-medium text-left text-gray-500 uppercase dark:text-gray-100 md:block hidden"
                 >
                   Description
                 </th>
@@ -161,7 +161,7 @@ defmodule PlausibleWeb.Live.Shields.IPRules do
                       <span
                         id={"inet-#{rule.id}"}
                         class="font-mono mr-4 cursor-help border-b border-dotted border-gray-400"
-                        title={"Added at #{rule.updated_at} by #{rule.added_by}"}
+                        title={"Added at #{format_added_at(rule.inserted_at, @site.timezone)} by #{rule.added_by}"}
                       >
                         <%= rule.inet %>
                       </span>
@@ -185,7 +185,7 @@ defmodule PlausibleWeb.Live.Shields.IPRules do
                       Allowed
                     </span>
                   </td>
-                  <td class="px-6 py-4 text-sm font-normal whitespace-nowrap truncate max-w-xs">
+                  <td class="px-6 py-4 text-sm font-normal whitespace-nowrap truncate max-w-xs md:block hidden">
                     <span :if={rule.description} title={rule.description}>
                       <%= rule.description %>
                     </span>
@@ -232,7 +232,8 @@ defmodule PlausibleWeb.Live.Shields.IPRules do
 
     case Shields.add_ip_rule(
            socket.assigns.site.id,
-           Map.put(params, "added_by", "#{user.name} <#{user.email}>")
+           params,
+           added_by: user
          ) do
       {:ok, rule} ->
         socket =
@@ -285,4 +286,10 @@ defmodule PlausibleWeb.Live.Shields.IPRules do
   defp ip_rule_present?(rules, ip) do
     not is_nil(Enum.find(rules, &(to_string(&1.inet) == ip)))
   end
+
+  defp format_added_at(dt, tz) do
+    dt
+    |> Plausible.Timezones.to_datetime_in_timezone(tz)
+    |> Timex.format!("{YYYY}-{0M}-{0D} {h24}:{m}:{s}")
+  end
 end

lib/plausible_web/router.ex

@@ -359,7 +359,7 @@ defmodule PlausibleWeb.Router do
     get "/:website/settings/email-reports", SiteController, :settings_email_reports
     get "/:website/settings/danger-zone", SiteController, :settings_danger_zone
     get "/:website/settings/integrations", SiteController, :settings_integrations
-    get "/:website/settings/shields", SiteController, :settings_shields
+    get "/:website/settings/shields/:shield", SiteController, :settings_shields
 
     put "/:website/settings/features/visibility/:setting",
         SiteController,

lib/plausible_web/templates/layout/_settings_tab.html.heex

@@ -1,13 +1,23 @@
 <a
-  href={"/" <> URI.encode_www_form(@site.domain) <> "/settings/" <> @this_tab}
+  href={@this_tab && "/" <> URI.encode_www_form(@site.domain) <> "/settings/" <> @this_tab}
   class={[
     "flex items-center px-3 py-2 text-sm leading-5 font-medium rounded-md outline-none focus:outline-none transition ease-in-out duration-150 cursor-default",
     is_current_tab(@conn, @this_tab) &&
       "cursor-default text-gray-900 dark:text-gray-100 bg-gray-100 dark:bg-gray-900 hover:text-gray-900 hover:bg-gray-100 focus:bg-gray-200 dark:focus:bg-gray-800",
-    not is_current_tab(@conn, @this_tab) &&
-      "cursor-pointer text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-100 hover:bg-gray-50 dark:hover:bg-gray-800 focus:text-gray-900 focus:bg-gray-50 dark:focus:text-gray-100 dark:focus:bg-gray-800"
+    @this_tab && not is_current_tab(@conn, @this_tab) &&
+      "cursor-pointer text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-100 hover:bg-gray-50 dark:hover:bg-gray-800 focus:text-gray-900 focus:bg-gray-50 dark:focus:text-gray-100 dark:focus:bg-gray-800",
+    !@this_tab && "text-gray-600 dark:text-gray-400",
+    @submenu? && "text-xs"
   ]}
 >
-  <PlausibleWeb.Components.Generic.dynamic_icon name={@icon} class="h-4 w-4 mr-2" />
+  <PlausibleWeb.Components.Generic.dynamic_icon
+    :if={not @submenu? && @icon}
+    name={@icon}
+    class="h-4 w-4 mr-2"
+  />
   <%= @text %>
+  <Heroicons.chevron_down
+    :if={is_nil(@this_tab)}
+    class="h-3 w-3 ml-2 text-gray-400 dark:text-gray-500"
+  />
 </a>

lib/plausible_web/templates/layout/site_settings.html.eex

@@ -1,26 +0,0 @@
-<%= render_layout "app.html", assigns do %>
-  <div class="container pt-6">
-    <%= link("← Back to Stats", to: "/#{URI.encode_www_form(@site.domain)}", class: "text-sm text-indigo-600 font-bold") %>
-    <div class="pb-5 border-b border-gray-200 dark:border-gray-500">
-      <h2 class="text-2xl font-bold leading-7 text-gray-900 dark:text-gray-100 sm:text-3xl sm:leading-9 sm:truncate">
-        Settings for <%= @site.domain %>
-      </h2>
-    </div>
-    <div class="lg:grid lg:grid-cols-12 lg:gap-x-5 lg:mt-4">
-      <div class="py-4 g:py-0 lg:col-span-3">
-        <%= form_for @conn, "/sites/#{URI.encode_www_form(@site.domain)}/monthly-report/recipients", [class: "lg:hidden"], fn f -> %>
-          <%= select f, :tab, settings_tabs(@conn), class: "dark:bg-gray-800 mt-1 block w-full pl-3 pr-10 py-2 text-base border-gray-300 dark:border-gray-500 outline-none focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm rounded-md dark:text-gray-100", onchange: "location.href = location.href.replace(/[^\/\/]*$/, event.target.value)", selected: List.last(@conn.path_info)  %>
-        <% end %>
-        <div class="hidden lg:block">
-          <%= for [key: key, value: val, icon: icon] <- settings_tabs(@conn) do %>
-            <%= render("_settings_tab.html", icon: icon, this_tab: val, text: key, site: @site, conn: @conn) %>
-          <% end %>
-        </div>
-      </div>
-
-      <div class="space-y-6 lg:col-span-9 lg:mt-4">
-        <%= @inner_content %>
-      </div>
-    </div>
-  </div>
-<% end %>

lib/plausible_web/templates/layout/site_settings.html.heex

@@ -0,0 +1,64 @@
+<%= render_layout "app.html", assigns do %>
+  <div class="container pt-6">
+    <%= link("← Back to Stats",
+      to: "/#{URI.encode_www_form(@site.domain)}",
+      class: "text-sm text-indigo-600 font-bold"
+    ) %>
+    <div class="pb-5 border-b border-gray-200 dark:border-gray-500">
+      <h2 class="text-2xl font-bold leading-7 text-gray-900 dark:text-gray-100 sm:text-3xl sm:leading-9 sm:truncate">
+        Settings for <%= @site.domain %>
+      </h2>
+    </div>
+    <div class="lg:grid lg:grid-cols-12 lg:gap-x-5 lg:mt-4">
+      <div class="py-4 g:py-0 lg:col-span-3">
+        <%= form_for @conn, "/sites/#{URI.encode_www_form(@site.domain)}/monthly-report/recipients", [class: "lg:hidden"], fn f -> %>
+          <%= select(f, :tab, flat_settings_options(@conn),
+            class:
+              "dark:bg-gray-800 mt-1 block w-full pl-3 pr-10 py-2 text-base border-gray-300 dark:border-gray-500 outline-none focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm rounded-md dark:text-gray-100",
+            onchange: "location.href = location.href.replace(/[^\/\/]*$/, event.target.value)",
+            selected: List.last(@conn.path_info)
+          ) %>
+        <% end %>
+        <div class="hidden lg:block">
+          <%= for %{key: key, value: value, icon: icon} <- settings_tabs(@conn) do %>
+            <%= if is_binary(value) do %>
+              <%= render("_settings_tab.html",
+                icon: icon,
+                this_tab: value,
+                text: key,
+                site: @site,
+                conn: @conn,
+                submenu?: false
+              ) %>
+            <% else %>
+              <%= render("_settings_tab.html",
+                icon: icon,
+                this_tab: nil,
+                text: key,
+                site: @site,
+                conn: @conn,
+                submenu?: false
+              ) %>
+              <div class="ml-8">
+                <%= for %{key: key, value: val} <- value do %>
+                  <%= render("_settings_tab.html",
+                    icon: nil,
+                    this_tab: val,
+                    text: key,
+                    site: @site,
+                    conn: @conn,
+                    submenu?: true
+                  ) %>
+                <% end %>
+              </div>
+            <% end %>
+          <% end %>
+        </div>
+      </div>
+
+      <div class="space-y-6 lg:col-span-9 lg:mt-4">
+        <%= @inner_content %>
+      </div>
+    </div>
+  </div>
+<% end %>

lib/plausible_web/templates/site/settings_shields.html.heex

@@ -1,7 +1,17 @@
-<%= live_render(@conn, PlausibleWeb.Live.Shields.Tabs,
+<%= case @shield do %>
+  <% "ip_addresses" -> %>
+    <%= live_render(@conn, PlausibleWeb.Live.Shields.IPAddresses,
       session: %{
         "site_id" => @site.id,
         "domain" => @site.domain,
         "remote_ip" => PlausibleWeb.RemoteIP.get(@conn)
       }
-) %>
+    ) %>
+  <% "countries" -> %>
+    <%= live_render(@conn, PlausibleWeb.Live.Shields.Countries,
+      session: %{
+        "site_id" => @site.id,
+        "domain" => @site.domain
+      }
+    ) %>
+<% end %>

lib/plausible_web/views/layout_view.ex

@@ -50,23 +50,44 @@ defmodule PlausibleWeb.LayoutView do
 
   def settings_tabs(conn) do
     [
-      [key: "General", value: "general", icon: :rocket_launch],
-      [key: "People", value: "people", icon: :users],
-      [key: "Visibility", value: "visibility", icon: :eye],
-      [key: "Goals", value: "goals", icon: :check_circle],
+      %{key: "General", value: "general", icon: :rocket_launch},
+      %{key: "People", value: "people", icon: :users},
+      %{key: "Visibility", value: "visibility", icon: :eye},
+      %{key: "Goals", value: "goals", icon: :check_circle},
       on_full_build do
-        [key: "Funnels", value: "funnels", icon: :funnel]
+        %{key: "Funnels", value: "funnels", icon: :funnel}
       end,
-      [key: "Custom Properties", value: "properties", icon: :document_text],
-      [key: "Integrations", value: "integrations", icon: :arrow_path_rounded_square],
-      if FunWithFlags.enabled?(:shields, for: conn.assigns[:current_user]) do
-        [key: "Shields", value: "shields", icon: :shield_exclamation]
-      end,
-      [key: "Email Reports", value: "email-reports", icon: :envelope],
+      %{key: "Custom Properties", value: "properties", icon: :document_text},
+      %{key: "Integrations", value: "integrations", icon: :arrow_path_rounded_square},
+      %{
+        key: "Shields",
+        icon: :shield_exclamation,
+        value: [
+          %{key: "IP Addresses", value: "shields/ip_addresses"},
+          %{key: "Countries", value: "shields/countries"}
+        ]
+      },
+      %{key: "Email Reports", value: "email-reports", icon: :envelope},
       if conn.assigns[:current_user_role] == :owner do
-        [key: "Danger Zone", value: "danger-zone", icon: :exclamation_triangle]
+        %{key: "Danger Zone", value: "danger-zone", icon: :exclamation_triangle}
       end
     ]
+    |> Enum.reject(&is_nil/1)
+  end
+
+  def flat_settings_options(conn) do
+    conn
+    |> settings_tabs()
+    |> Enum.map(fn
+      %{value: value, key: key} when is_binary(value) ->
+        {key, value}
+
+      %{value: submenu_items, key: parent_key} when is_list(submenu_items) ->
+        Enum.map(submenu_items, fn submenu_item ->
+          {"#{parent_key}: #{submenu_item.key}", submenu_item.value}
+        end)
+    end)
+    |> List.flatten()
   end
 
   def trial_notificaton(user) do
@@ -97,7 +118,11 @@ defmodule PlausibleWeb.LayoutView do
     render(layout, Map.put(assigns, :inner_layout, content))
   end
 
+  def is_current_tab(_, nil) do
+    false
+  end
+
   def is_current_tab(conn, tab) do
-    List.last(conn.path_info) == tab
+    String.ends_with?(Enum.join(conn.path_info, "/"), tab)
   end
 end

priv/repo/seeds.exs

@@ -50,6 +50,8 @@ site =
   )
 
 Plausible.Factory.insert_list(29, :ip_rule, site: site)
+Plausible.Factory.insert(:country_rule, site: site, country_code: "PL")
+Plausible.Factory.insert(:country_rule, site: site, country_code: "EE")
 
 Plausible.Factory.insert(:google_auth,
   user: user,
@@ -82,7 +84,13 @@ put_random_time = fn
   date, 0 ->
     current_hour = Time.utc_now().hour
     current_minute = Time.utc_now().minute
-    random_time = Time.new!(:rand.uniform(current_hour), :rand.uniform(current_minute - 1), 0)
+
+    random_time =
+      Time.new!(
+        Enum.random(0..current_hour),
+        Enum.random(0..current_minute),
+        0
+      )
 
     date
     |> NaiveDateTime.new!(random_time)

test/plausible/ingestion/event_test.exs

@@ -137,6 +137,27 @@ defmodule Plausible.Ingestion.EventTest do
     assert dropped.drop_reason == :site_ip_blocklist
   end
 
+  test "event pipeline drops a request when country is on blocklist" do
+    site = insert(:site)
+
+    payload = %{
+      name: "pageview",
+      url: "http://dummy.site",
+      domain: site.domain
+    }
+
+    conn = build_conn(:post, "/api/events", payload)
+    conn = %{conn | remote_ip: {216, 160, 83, 56}}
+
+    %{country_code: cc} = Plausible.Ingestion.Geolocation.lookup("216.160.83.56")
+    {:ok, _} = Plausible.Shields.add_country_rule(site, %{"country_code" => cc})
+
+    assert {:ok, request} = Request.build(conn)
+
+    assert {:ok, %{buffered: [], dropped: [dropped]}} = Event.build_and_buffer(request)
+    assert dropped.drop_reason == :site_country_blocklist
+  end
+
   test "event pipeline drops events for site with accept_trafic_until in the past" do
     yesterday = Date.add(Date.utc_today(), -1)
 

test/plausible/shield/country_rule_cache_test.exs

@@ -0,0 +1,81 @@
+defmodule Plausible.Shield.CountryRuleCacheTest do
+  use Plausible.DataCase, async: true
+
+  alias Plausible.Shield.CountryRule
+  alias Plausible.Shield.CountryRuleCache
+  alias Plausible.Shields
+
+  describe "public cache interface" do
+    test "cache caches country rules", %{test: test} do
+      {:ok, _} =
+        Supervisor.start_link(
+          [{CountryRuleCache, [cache_name: test, child_id: :country_rules_cache_id]}],
+          strategy: :one_for_one,
+          name: :"cache_supervisor_#{test}"
+        )
+
+      site = insert(:site, domain: "site1.example.com")
+
+      {:ok, %{id: rid1}} = Shields.add_country_rule(site, %{"country_code" => "EE"})
+      {:ok, %{id: rid2}} = Shields.add_country_rule(site, %{"country_code" => "PL"})
+
+      :ok = CountryRuleCache.refresh_all(cache_name: test)
+
+      :ok = Shields.remove_country_rule(site, rid1)
+
+      assert CountryRuleCache.size(test) == 2
+
+      assert %CountryRule{from_cache?: true, id: ^rid1} =
+               CountryRuleCache.get({site.domain, "EE"}, force?: true, cache_name: test)
+
+      assert %CountryRule{from_cache?: true, id: ^rid2} =
+               CountryRuleCache.get({site.domain, "PL"}, force?: true, cache_name: test)
+
+      refute CountryRuleCache.get({site.domain, "RO"}, cache_name: test, force?: true)
+    end
+
+    test "cache allows lookups for countries on sites with changed domain", %{test: test} do
+      {:ok, _} = start_test_cache(test)
+      site = insert(:site, domain: "new.example.com", domain_changed_from: "old.example.com")
+
+      {:ok, _} = Shields.add_country_rule(site, %{"country_code" => "EE"})
+      :ok = CountryRuleCache.refresh_all(cache_name: test)
+
+      assert CountryRuleCache.get({"old.example.com", "EE"}, force?: true, cache_name: test)
+      assert CountryRuleCache.get({"new.example.com", "EE"}, force?: true, cache_name: test)
+    end
+
+    test "refreshes only recently added country rules", %{test: test} do
+      {:ok, _} = start_test_cache(test)
+
+      domain = "site1.example.com"
+      site = insert(:site, domain: domain)
+
+      cache_opts = [cache_name: test, force?: true]
+
+      yesterday = DateTime.utc_now() |> DateTime.add(-1 * 60 * 60 * 24)
+
+      insert(:country_rule,
+        site: site,
+        inserted_at: yesterday,
+        updated_at: yesterday,
+        country_code: "EE"
+      )
+
+      insert(:country_rule, site: site, country_code: "PL")
+
+      assert CountryRuleCache.get({domain, "EE"}, cache_opts) == nil
+      assert CountryRuleCache.get({domain, "PL"}, cache_opts) == nil
+
+      assert :ok = CountryRuleCache.refresh_updated_recently(cache_opts)
+
+      refute CountryRuleCache.get({domain, "EE"}, cache_opts)
+      assert %CountryRule{} = CountryRuleCache.get({domain, "PL"}, cache_opts)
+    end
+  end
+
+  defp start_test_cache(cache_name) do
+    %{start: {m, f, a}} = CountryRuleCache.child_spec(cache_name: cache_name)
+    apply(m, f, a)
+  end
+end

test/plausible/shields_test.exs

@@ -80,8 +80,12 @@ defmodule Plausible.ShieldsTest do
     end
 
     test "with added_by", %{site: site} do
-      assert {:ok, rule} = add_ip_rule(site, %{"inet" => "1.1.1.1", "added_by" => "test"})
-      assert rule.added_by == "test"
+      assert {:ok, rule} =
+               add_ip_rule(site, %{"inet" => "1.1.1.1"},
+                 added_by: build(:user, name: "Joe", email: "joe@example.com")
+               )
+
+      assert rule.added_by == "Joe <joe@example.com>"
     end
   end
 
@@ -138,4 +142,129 @@ defmodule Plausible.ShieldsTest do
       refute rule.from_cache?
     end
   end
+
+  describe "add_country_rule/2" do
+    test "no input", %{site: site} do
+      assert {:error, changeset} = add_country_rule(site, %{})
+      assert changeset.errors == [country_code: {"can't be blank", [validation: :required]}]
+      refute changeset.valid?
+    end
+
+    test "unsupported country", %{site: site} do
+      assert {:error, changeset} = add_country_rule(site, %{"country_code" => "0X"})
+      assert changeset.errors == [country_code: {"is invalid", []}]
+      refute changeset.valid?
+    end
+
+    test "incorrect country format", %{site: site} do
+      assert {:error, changeset} = add_country_rule(site, %{"country_code" => "Germany"})
+
+      assert changeset.errors ==
+               [
+                 {:country_code, {"is invalid", []}},
+                 {:country_code,
+                  {"should be %{count} character(s)",
+                   [count: 2, validation: :length, kind: :is, type: :string]}}
+               ]
+
+      refute changeset.valid?
+    end
+
+    test "double insert", %{site: site} do
+      assert {:ok, _} = add_country_rule(site, %{"country_code" => "EE"})
+      assert {:error, changeset} = add_country_rule(site, %{"country_code" => "EE"})
+      refute changeset.valid?
+
+      assert changeset.errors == [
+               country_code:
+                 {"has already been taken",
+                  [
+                    {:constraint, :unique},
+                    {:constraint_name, "shield_rules_country_site_id_country_code_index"}
+                  ]}
+             ]
+    end
+
+    test "over limit", %{site: site} do
+      country_codes =
+        Location.Country.all()
+        |> Enum.take(Plausible.Shields.maximum_country_rules())
+        |> Enum.map(& &1.alpha_2)
+
+      for cc <- country_codes do
+        assert {:ok, _} =
+                 add_country_rule(site, %{"country_code" => cc})
+      end
+
+      assert count_country_rules(site) == maximum_country_rules()
+
+      assert {:error, changeset} =
+               add_country_rule(site, %{"country_code" => "US"})
+
+      refute changeset.valid?
+      assert changeset.errors == [country_code: {"maximum reached", []}]
+    end
+
+    test "with added_by", %{site: site} do
+      assert {:ok, rule} =
+               add_country_rule(site, %{"country_code" => "EE"},
+                 added_by: build(:user, name: "Joe", email: "joe@example.com")
+               )
+
+      assert rule.added_by == "Joe <joe@example.com>"
+    end
+  end
+
+  describe "remove_country_rule/2" do
+    test "is idempontent", %{site: site} do
+      {:ok, rule} = add_country_rule(site, %{"country_code" => "EE"})
+      assert remove_country_rule(site, rule.id) == :ok
+      refute Repo.get(Plausible.Shield.CountryRule, rule.id)
+      assert remove_country_rule(site, rule.id) == :ok
+    end
+  end
+
+  describe "list_country_rules/1" do
+    test "empty", %{site: site} do
+      assert(list_country_rules(site) == [])
+    end
+
+    @tag :slow
+    test "many", %{site: site} do
+      {:ok, r1} = add_country_rule(site, %{"country_code" => "EE"})
+      :timer.sleep(1000)
+      {:ok, r2} = add_country_rule(site, %{"country_code" => "PL"})
+      assert [^r2, ^r1] = list_country_rules(site)
+    end
+  end
+
+  describe "count_country_rules/1" do
+    test "counts", %{site: site} do
+      assert count_country_rules(site) == 0
+      {:ok, _} = add_country_rule(site, %{"country_code" => "EE"})
+      assert count_country_rules(site) == 1
+      {:ok, _} = add_country_rule(site, %{"country_code" => "PL"})
+      assert count_country_rules(site) == 2
+    end
+  end
+
+  describe "Country Rules" do
+    test "end to end", %{site: site} do
+      site2 = insert(:site)
+
+      assert count_country_rules(site.id) == 0
+      assert list_country_rules(site.id) == []
+
+      assert {:ok, rule} =
+               add_country_rule(site.id, %{"country_code" => "EE"})
+
+      add_country_rule(site2, %{"country_code" => "PL"})
+
+      assert count_country_rules(site) == 1
+      assert [^rule] = list_country_rules(site)
+      assert rule.country_code == "EE"
+      assert rule.action == :deny
+      refute rule.from_cache?
+    end
+  end
 end

test/plausible/timezones_test.exs

@@ -1,8 +1,10 @@
 defmodule Plausible.TimezonesTest do
   use ExUnit.Case, async: true
 
+  import Plausible.Timezones
+
   test "options/0 returns a list of timezones" do
-    options = Plausible.Timezones.options()
+    options = options()
     refute Enum.empty?(options)
 
     gmt12 = Enum.find(options, &(&1[:value] == "Etc/GMT+12"))
@@ -13,7 +15,59 @@ defmodule Plausible.TimezonesTest do
   end
 
   test "options/0 does not fail during time changes" do
-    options = Plausible.Timezones.options(~N[2021-10-03 02:31:07])
+    options = options(~N[2021-10-03 02:31:07])
     refute Enum.empty?(options)
   end
+
+  test "to_utc_datetime/2" do
+    assert to_utc_datetime(~N[2022-09-11 00:00:00], "Etc/UTC") == ~U[2022-09-11 00:00:00Z]
+
+    assert to_utc_datetime(~N[2022-09-11 00:00:00], "America/Santiago") ==
+             ~U[2022-09-11 00:00:00Z]
+
+    assert to_utc_datetime(~N[2023-10-29 00:00:00], "Atlantic/Azores") == ~U[2023-10-29 01:00:00Z]
+  end
+
+  test "to_date_in_timezone/1" do
+    assert to_date_in_timezone(~D[2021-01-03], "Etc/UTC") == ~D[2021-01-03]
+    assert to_date_in_timezone(~U[2015-01-13 13:00:07Z], "Etc/UTC") == ~D[2015-01-13]
+    assert to_date_in_timezone(~N[2015-01-13 13:00:07], "Etc/UTC") == ~D[2015-01-13]
+    assert to_date_in_timezone(~N[2015-01-13 19:00:07], "Etc/GMT+12") == ~D[2015-01-14]
+  end
+
+  test "to_datetime_in_timezone/1" do
+    assert to_datetime_in_timezone(~D[2021-01-03], "Etc/UTC") == ~U[2021-01-03 00:00:00Z]
+    assert to_datetime_in_timezone(~N[2015-01-13 13:00:07], "Etc/UTC") == ~U[2015-01-13 13:00:07Z]
+
+    assert to_datetime_in_timezone(~N[2015-01-13 19:00:07], "Etc/GMT+12") ==
+             %DateTime{
+               microsecond: {0, 0},
+               second: 7,
+               calendar: Calendar.ISO,
+               month: 1,
+               day: 14,
+               year: 2015,
+               minute: 0,
+               hour: 7,
+               time_zone: "Etc/GMT-12",
+               zone_abbr: "+12",
+               utc_offset: 43_200,
+               std_offset: 0
+             }
+
+    assert to_datetime_in_timezone(~N[2016-03-27 02:30:00], "Europe/Copenhagen") == %DateTime{
+             microsecond: {0, 0},
+             second: 0,
+             calendar: Calendar.ISO,
+             month: 3,
+             day: 27,
+             year: 2016,
+             minute: 30,
+             hour: 4,
+             time_zone: "Europe/Copenhagen",
+             zone_abbr: "CEST",
+             utc_offset: 3600,
+             std_offset: 3600
+           }
+  end
 end

test/plausible_web/live/shields/countries_test.exs

@@ -0,0 +1,126 @@
+defmodule PlausibleWeb.Live.Shields.CountriesTest do
+  use PlausibleWeb.ConnCase, async: true
+
+  import Phoenix.LiveViewTest
+  import Plausible.Test.Support.HTML
+
+  alias Plausible.Shields
+
+  setup [:create_user, :create_site, :log_in]
+
+  describe "Country Rules - static" do
+    test "renders country rules page with empty list", %{conn: conn, site: site} do
+      conn = get(conn, "/#{site.domain}/settings/shields/countries")
+      resp = html_response(conn, 200)
+
+      assert resp =~ "No Country Rules configured for this Site"
+      assert resp =~ "Country Block List"
+    end
+
+    test "lists country rules with remove actions", %{conn: conn, site: site} do
+      {:ok, r1} =
+        Shields.add_country_rule(site, %{"country_code" => "PL"})
+
+      {:ok, r2} =
+        Shields.add_country_rule(site, %{"country_code" => "EE"})
+
+      conn = get(conn, "/#{site.domain}/settings/shields/countries")
+      resp = html_response(conn, 200)
+
+      assert resp =~ "Poland"
+      assert resp =~ "Estonia"
+
+      assert remove_button_1 = find(resp, "#remove-country-rule-#{r1.id}")
+      assert remove_button_2 = find(resp, "#remove-country-rule-#{r2.id}")
+
+      assert text_of_attr(remove_button_1, "phx-click" == "remove-country-rule")
+      assert text_of_attr(remove_button_1, "phx-value-rule-id" == r1.id)
+      assert text_of_attr(remove_button_2, "phx-click" == "remove-country-rule")
+      assert text_of_attr(remove_button_2, "phx-value-rule-id" == r2.id)
+    end
+
+    test "add rule button is rendered", %{conn: conn, site: site} do
+      conn = get(conn, "/#{site.domain}/settings/shields/countries")
+      resp = html_response(conn, 200)
+
+      assert element_exists?(resp, ~s/button#add-country-rule[x-data]/)
+      attr = text_of_attr(resp, ~s/button#add-country-rule/, "x-on:click")
+
+      assert attr =~ "open-modal"
+      assert attr =~ "country-rule-form-modal"
+    end
+
+    test "add rule button is not rendered when maximum reached", %{conn: conn, site: site} do
+      country_codes =
+        Location.Country.all()
+        |> Enum.take(Shields.maximum_country_rules())
+        |> Enum.map(& &1.alpha_2)
+
+      for cc <- country_codes do
+        assert {:ok, _} =
+                 Shields.add_country_rule(site, %{"country_code" => "#{cc}"})
+      end
+
+      conn = get(conn, "/#{site.domain}/settings/shields/countries")
+      resp = html_response(conn, 200)
+
+      refute element_exists?(resp, ~s/button#add-country-rule[x-data]/)
+      assert resp =~ "Maximum number of countries reached"
+      assert resp =~ "You've reached the maximum number of countries you can block (30)"
+    end
+  end
+
+  describe "Country Rules - LiveView" do
+    test "modal contains form", %{site: site, conn: conn} do
+      lv = get_liveview(conn, site)
+      html = render(lv)
+
+      assert element_exists?(
+               html,
+               ~s/form[phx-submit="save-country-rule"] input[name="country_rule\[country_code\]"]/
+             )
+
+      assert submit_button(html, ~s/form[phx-submit="save-country-rule"]/)
+    end
+
+    test "submitting a valid country saves it", %{conn: conn, site: site} do
+      lv = get_liveview(conn, site)
+
+      lv
+      |> element("form")
+      |> render_submit(%{
+        "country_rule[country_code]" => "EE"
+      })
+
+      html = render(lv)
+
+      assert html =~ "Estonia"
+
+      assert [%{country_code: "EE"}] = Shields.list_country_rules(site)
+    end
+
+    test "clicking Remove deletes the rule", %{conn: conn, site: site} do
+      {:ok, _} =
+        Shields.add_country_rule(site, %{"country_code" => "EE"})
+
+      lv = get_liveview(conn, site)
+
+      html = render(lv)
+      assert text_of_element(html, "table tbody td") =~ "Estonia"
+
+      lv |> element(~s/button[phx-click="remove-country-rule"]/) |> render_click()
+
+      html = render(lv)
+      refute text_of_element(html, "table tbody td") =~ "Estonia"
+
+      assert Shields.count_country_rules(site) == 0
+    end
+
+    defp get_liveview(conn, site) do
+      conn = assign(conn, :live_module, PlausibleWeb.Live.Shields)
+      {:ok, lv, _html} = live(conn, "/#{site.domain}/settings/shields/countries")
+
+      lv
+    end
+  end
+end

test/plausible_web/live/shields/ip_addresses_test.exs

@@ -1,4 +1,4 @@
-defmodule PlausibleWeb.Live.ShieldsTest do
+defmodule PlausibleWeb.Live.Shields.IPAddressesTest do
   use PlausibleWeb.ConnCase, async: true
 
   import Phoenix.LiveViewTest
@@ -10,7 +10,7 @@ defmodule PlausibleWeb.Live.ShieldsTest do
 
   describe "IP Rules - static" do
     test "renders ip rules page with empty list", %{conn: conn, site: site} do
-      conn = get(conn, "/#{site.domain}/settings/shields")
+      conn = get(conn, "/#{site.domain}/settings/shields/ip_addresses")
       resp = html_response(conn, 200)
 
       assert resp =~ "No IP Rules configured for this Site"
@@ -24,7 +24,7 @@ defmodule PlausibleWeb.Live.ShieldsTest do
       {:ok, r2} =
         Shields.add_ip_rule(site, %{"inet" => "127.0.0.2", "description" => "Bob"})
 
-      conn = get(conn, "/#{site.domain}/settings/shields")
+      conn = get(conn, "/#{site.domain}/settings/shields/ip_addresses")
       resp = html_response(conn, 200)
 
       assert resp =~ "127.0.0.1"
@@ -33,19 +33,17 @@ defmodule PlausibleWeb.Live.ShieldsTest do
       assert resp =~ "127.0.0.2"
       assert resp =~ "Bob"
 
-      assert element_exists?(
-               resp,
-               ~s/button[phx-click="remove-ip-rule"][phx-value-rule-id="#{r1.id}"]#remove-ip-rule-#{r1.id}/
-             )
+      assert remove_button_1 = find(resp, "#remove-ip-rule-#{r1.id}")
+      assert remove_button_2 = find(resp, "#remove-ip-rule-#{r2.id}")
 
-      assert element_exists?(
-               resp,
-               ~s/button[phx-click="remove-ip-rule"][phx-value-rule-id="#{r2.id}"]#remove-ip-rule-#{r2.id}/
-             )
+      assert text_of_attr(remove_button_1, "phx-click" == "remove-ip-rule")
+      assert text_of_attr(remove_button_1, "phx-value-rule-id" == r1.id)
+      assert text_of_attr(remove_button_2, "phx-click" == "remove-ip-rule")
+      assert text_of_attr(remove_button_2, "phx-value-rule-id" == r2.id)
     end
 
     test "add rule button is rendered", %{conn: conn, site: site} do
-      conn = get(conn, "/#{site.domain}/settings/shields")
+      conn = get(conn, "/#{site.domain}/settings/shields/ip_addresses")
       resp = html_response(conn, 200)
 
       assert element_exists?(resp, ~s/button#add-ip-rule[x-data]/)
@@ -61,11 +59,12 @@ defmodule PlausibleWeb.Live.ShieldsTest do
                  Shields.add_ip_rule(site, %{"inet" => "1.1.1.#{i}"})
       end
 
-      conn = get(conn, "/#{site.domain}/settings/shields")
+      conn = get(conn, "/#{site.domain}/settings/shields/ip_addresses")
       resp = html_response(conn, 200)
 
       refute element_exists?(resp, ~s/button#add-ip-rule[x-data]/)
       assert resp =~ "Maximum number of addresses reached"
+      assert resp =~ "You've reached the maximum number of IP addresses you can block (30)"
     end
   end
 
@@ -200,7 +199,7 @@ defmodule PlausibleWeb.Live.ShieldsTest do
 
     defp get_liveview(conn, site) do
       conn = assign(conn, :live_module, PlausibleWeb.Live.Shields)
-      {:ok, lv, _html} = live(conn, "/#{site.domain}/settings/shields")
+      {:ok, lv, _html} = live(conn, "/#{site.domain}/settings/shields/ip_addresses")
 
       lv
     end

test/support/factory.ex

@@ -286,6 +286,12 @@ defmodule Plausible.Factory do
     }
   end
 
+  def country_rule_factory do
+    %Plausible.Shield.CountryRule{
+      added_by: "Mr Seed <user@plausible.test>"
+    }
+  end
+
   defp hash_key() do
     Keyword.fetch!(
       Application.get_env(:plausible, PlausibleWeb.Endpoint),

test/test_helper.exs

@@ -2,7 +2,6 @@
 Mox.defmock(Plausible.HTTPClient.Mock, for: Plausible.HTTPClient.Interface)
 Application.ensure_all_started(:double)
 FunWithFlags.enable(:window_time_on_page)
-FunWithFlags.enable(:shields)
 Ecto.Adapters.SQL.Sandbox.mode(Plausible.Repo, :manual)
 
 if Mix.env() == :small_test do