Add wrapper to Sentry to not load it when not configured

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

config/config.exs

@@ -113,7 +113,7 @@ config :mobilizon, Mobilizon.Web.Email.Mailer,
 
 # Configures Elixir's Logger
 config :logger, :console,
-  backends: [:console, Sentry.LoggerBackend],
+  backends: [:console],
   format: "$time $metadata[$level] $message\n",
   metadata: [:request_id]
 

lib/federation/activity_pub/fetcher.ex

@@ -9,6 +9,7 @@ defmodule Mobilizon.Federation.ActivityPub.Fetcher do
   alias Mobilizon.Federation.HTTPSignatures.Signature
   alias Mobilizon.Federation.ActivityPub.{Relay, Transmogrifier}
   alias Mobilizon.Federation.ActivityStream.Converter.Actor, as: ActorConverter
+  alias Mobilizon.Service.ErrorReporting.Sentry
   alias Mobilizon.Service.HTTP.ActivityPub, as: ActivityPubClient
 
   import Mobilizon.Federation.ActivityPub.Utils,

lib/federation/activity_pub/refresher.ex

@@ -8,6 +8,7 @@ defmodule Mobilizon.Federation.ActivityPub.Refresher do
   alias Mobilizon.Federation.ActivityPub
   alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
   alias Mobilizon.Federation.ActivityPub.{Fetcher, Relay, Transmogrifier, Utils}
+  alias Mobilizon.Service.ErrorReporting.Sentry
   require Logger
 
   @doc """

lib/federation/activity_pub/transmogrifier.ex

@@ -21,6 +21,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
   alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
   alias Mobilizon.Federation.ActivityPub.Types.Ownable
   alias Mobilizon.Federation.ActivityStream.{Converter, Convertible}
+  alias Mobilizon.Service.ErrorReporting.Sentry
   alias Mobilizon.Service.Workers.Background
   alias Mobilizon.Tombstone
   alias Mobilizon.Web.Email.Participation

lib/federation/http_signatures/signature.ex

@@ -13,6 +13,7 @@ defmodule Mobilizon.Federation.HTTPSignatures.Signature do
   alias Mobilizon.Actors.Actor
 
   alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
+  alias Mobilizon.Service.ErrorReporting.Sentry
 
   require Logger
 

lib/mobilizon.ex

@@ -16,7 +16,7 @@ defmodule Mobilizon do
 
   alias Mobilizon.{Config, Storage, Web}
   alias Mobilizon.Federation.ActivityPub
-  alias Mobilizon.Service.{ErrorPage, ErrorReporter}
+  alias Mobilizon.Service.{ErrorPage, ErrorReporting}
   alias Mobilizon.Service.Export.{Feed, ICalendar}
 
   @name Mix.Project.config()[:name]
@@ -66,13 +66,14 @@ defmodule Mobilizon do
       ] ++
         task_children(@env)
 
-    Logger.add_backend(Sentry.LoggerBackend)
+    ErrorReporting.configure()
+
     :ok = Oban.Telemetry.attach_default_logger()
 
     :telemetry.attach_many(
       "oban-errors",
       [[:oban, :job, :exception], [:oban, :circuit, :trip]],
-      &ErrorReporter.handle_event/4,
+      &ErrorReporting.handle_event/4,
       %{}
     )
 

lib/mobilizon/actors/actors.ex

@@ -16,6 +16,7 @@ defmodule Mobilizon.Actors do
   alias Mobilizon.Events.FeedToken
   alias Mobilizon.Federation.ActivityPub
   alias Mobilizon.Medias.File
+  alias Mobilizon.Service.ErrorReporting.Sentry
   alias Mobilizon.Service.Workers
   alias Mobilizon.Storage.{Page, Repo}
   alias Mobilizon.Users

lib/service/error_reporter.ex

@@ -1,17 +0,0 @@
-defmodule Mobilizon.Service.ErrorReporter do
-  @moduledoc """
-  Module to delegate all exceptions to Sentry
-  """
-  def handle_event([:oban, :job, :exception], measure, %{job: job} = meta, _) do
-    extra =
-      job
-      |> Map.take([:id, :args, :meta, :queue, :worker])
-      |> Map.merge(measure)
-
-    Sentry.capture_exception(meta.error, stacktrace: meta.stacktrace, extra: extra)
-  end
-
-  def handle_event([:oban, :circuit, :trip], _measure, meta, _) do
-    Sentry.capture_exception(meta.error, stacktrace: meta.stacktrace, extra: meta)
-  end
-end

lib/service/error_reporting/error_reporting.ex

@@ -0,0 +1,35 @@
+defmodule Mobilizon.Service.ErrorReporting do
+  @moduledoc """
+  Mpdule to load and configure error reporting adapters
+  """
+
+  @callback enabled? :: boolean()
+
+  @callback configure :: any()
+
+  @callback handle_event(list(atom()), map(), map(), any()) :: any()
+
+  @spec adapter :: module() | nil
+  def adapter do
+    adapter = Mobilizon.Config.get([__MODULE__, :adapter])
+    if adapter && adapter.enabled?(), do: adapter, else: nil
+  end
+
+  @spec handle_event(list(atom()), map(), map(), any()) :: any()
+  def handle_event(event_name, event_measurements, event_metadata, handler_config) do
+    adapter = adapter()
+
+    if adapter do
+      adapter.handle_event(event_name, event_measurements, event_metadata, handler_config)
+    end
+  end
+
+  @spec configure :: any()
+  def configure do
+    adapter = adapter()
+
+    if adapter do
+      adapter.configure()
+    end
+  end
+end

lib/service/error_reporting/sentry.ex

@@ -0,0 +1,45 @@
+defmodule Mobilizon.Service.ErrorReporting.Sentry do
+  @moduledoc """
+  Sentry adapter for error reporting
+  """
+
+  alias Mobilizon.Service.ErrorReporting
+  @behaviour ErrorReporting
+
+  @impl ErrorReporting
+  def enabled? do
+    !is_nil(Application.get_env(:sentry, :dsn))
+  end
+
+  @impl ErrorReporting
+  def configure do
+    Logger.add_backend(Sentry.LoggerBackend)
+  end
+
+  def capture_message(message, opts \\ []) when is_binary(message) do
+    if enabled?() do
+      Sentry.capture_message(message, opts)
+    end
+  end
+
+  def capture_exception(exception, opts \\ []) do
+    if enabled?() do
+      Sentry.capture_exception(exception, opts)
+    end
+  end
+
+  @impl ErrorReporting
+  def handle_event([:oban, :job, :exception], measure, %{job: job} = meta, _) do
+    extra =
+      job
+      |> Map.take([:id, :args, :meta, :queue, :worker])
+      |> Map.merge(measure)
+
+    Sentry.capture_exception(meta.error, stacktrace: meta.stacktrace, extra: extra)
+  end
+
+  @impl ErrorReporting
+  def handle_event([:oban, :circuit, :trip], _measure, meta, _) do
+    Sentry.capture_exception(meta.error, stacktrace: meta.stacktrace, extra: meta)
+  end
+end

lib/web/auth/context.ex

@@ -6,6 +6,7 @@ defmodule Mobilizon.Web.Auth.Context do
 
   import Plug.Conn
 
+  alias Mobilizon.Service.ErrorReporting.Sentry, as: SentryAdapter
   alias Mobilizon.Users.User
 
   def init(opts) do
@@ -24,7 +25,10 @@ defmodule Mobilizon.Web.Auth.Context do
     context =
       case Guardian.Plug.current_resource(conn) do
         %User{id: user_id, email: user_email} = user ->
-          Sentry.Context.set_user_context(%{id: user_id, name: user_email})
+          if SentryAdapter.enabled?() do
+            Sentry.Context.set_user_context(%{id: user_id, name: user_email})
+          end
+
           Map.put(context, :current_user, user)
 
         nil ->

lib/web/email/mailer.ex

@@ -3,6 +3,7 @@ defmodule Mobilizon.Web.Email.Mailer do
   Mobilizon Mailer.
   """
   use Bamboo.Mailer, otp_app: :mobilizon
+  alias Mobilizon.Service.ErrorReporting.Sentry
 
   def send_email_later(email) do
     Mobilizon.Web.Email.Mailer.deliver_later!(email)

lib/web/endpoint.ex

@@ -2,7 +2,10 @@ defmodule Mobilizon.Web.Endpoint do
   @moduledoc """
   Endpoint for Mobilizon app
   """
-  if Application.fetch_env!(:mobilizon, :env) !== :test do
+  alias Mobilizon.Service.ErrorReporting.Sentry, as: SentryAdapter
+
+  if Application.fetch_env!(:mobilizon, :env) !== :test &&
+       SentryAdapter.enabled?() do
     use Sentry.PlugCapture
   end
 
@@ -92,7 +95,8 @@ defmodule Mobilizon.Web.Endpoint do
     String.replace_leading(url(), "http", "ws")
   end
 
-  if Application.fetch_env!(:mobilizon, :env) !== :test do
+  if Application.fetch_env!(:mobilizon, :env) !== :test &&
+       SentryAdapter.enabled?() do
     plug(Sentry.PlugContext)
   end
 end