Merge remote-tracking branch 'pleroma/develop' into feature/disable-account

[akkoma] / lib / pleroma / web / salmon / salmon.ex

diff --git a/lib/pleroma/web/salmon/salmon.ex b/lib/pleroma/web/salmon/salmon.ex
index b98ece6c9fa37ed520adc5f1a2a061a4f13aa81d..42709ab47251531d594cdf7938b68d089a7a729e 100644 (file)
--- a/lib/pleroma/web/salmon/salmon.ex
+++ b/lib/pleroma/web/salmon/salmon.ex
@@ -1,10 +1,23 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.Salmon do
+  @behaviour Pleroma.Web.Federator.Publisher
+
   @httpoison Application.get_env(:pleroma, :httpoison)
 
   use Bitwise
-  alias Pleroma.Web.XML
-  alias Pleroma.Web.OStatus.ActivityRepresenter
+
+  alias Pleroma.Activity
+  alias Pleroma.Instances
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.Visibility
+  alias Pleroma.Web.Federator.Publisher
+  alias Pleroma.Web.OStatus
+  alias Pleroma.Web.OStatus.ActivityRepresenter
+  alias Pleroma.Web.XML
+
   require Logger
 
   def decode(salmon) do
@@ -79,10 +92,10 @@ defmodule Pleroma.Web.Salmon do
   # Native generation of RSA keys is only available since OTP 20+ and in default build conditions
   # We try at compile time to generate natively an RSA key otherwise we fallback on the old way.
   try do
-    _ = :public_key.generate_key({:rsa, 2048, 65537})
+    _ = :public_key.generate_key({:rsa, 2048, 65_537})
 
     def generate_rsa_pem do
-      key = :public_key.generate_key({:rsa, 2048, 65537})
+      key = :public_key.generate_key({:rsa, 2048, 65_537})
       entry = :public_key.pem_entry_encode(:RSAPrivateKey, key)
       pem = :public_key.pem_encode([entry]) |> String.trim_trailing()
       {:ok, pem}
@@ -157,23 +170,31 @@ defmodule Pleroma.Web.Salmon do
     |> Enum.filter(fn user -> user && !user.local end)
   end
 
-  defp send_to_user(%{info: %{salmon: salmon}}, feed, poster) do
-    with {:ok, %{status_code: code}} <-
-           poster.(
-             salmon,
+  @doc "Pushes an activity to remote account."
+  def publish_one(%{recipient: %{info: %{salmon: salmon}}} = params),
+    do: publish_one(Map.put(params, :recipient, salmon))
+
+  def publish_one(%{recipient: url, feed: feed} = params) when is_binary(url) do
+    with {:ok, %{status: code}} when code in 200..299 <-
+           @httpoison.post(
+             url,
              feed,
-             [{"Content-Type", "application/magic-envelope+xml"}],
-             timeout: 10000,
-             recv_timeout: 20000,
-             hackney: [pool: :default]
+             [{"Content-Type", "application/magic-envelope+xml"}]
            ) do
-      Logger.debug(fn -> "Pushed to #{salmon}, code #{code}" end)
+      if !Map.has_key?(params, :unreachable_since) || params[:unreachable_since],
+        do: Instances.set_reachable(url)
+
+      Logger.debug(fn -> "Pushed to #{url}, code #{code}" end)
+      :ok
     else
-      e -> Logger.debug(fn -> "Pushing Salmon to #{salmon} failed, #{inspect(e)}" end)
+      e ->
+        unless params[:unreachable_since], do: Instances.set_reachable(url)
+        Logger.debug(fn -> "Pushing Salmon to #{url} failed, #{inspect(e)}" end)
+        {:error, "Unreachable instance"}
     end
   end
 
-  defp send_to_user(_, _, _), do: nil
+  def publish_one(_), do: :noop
 
   @supported_activities [
     "Create",
@@ -183,9 +204,20 @@ defmodule Pleroma.Web.Salmon do
     "Undo",
     "Delete"
   ]
-  def publish(user, activity, poster \\ &@httpoison.post/4)
 
-  def publish(%{info: %{keys: keys}} = user, %{data: %{"type" => type}} = activity, poster)
+  def is_representable?(%Activity{data: %{"type" => type}} = activity)
+      when type in @supported_activities,
+      do: Visibility.is_public?(activity)
+
+  def is_representable?(_), do: false
+
+  @doc """
+  Publishes an activity to remote accounts
+  """
+  @spec publish(User.t(), Pleroma.Activity.t()) :: none
+  def publish(user, activity)
+
+  def publish(%{info: %{keys: keys}} = user, %{data: %{"type" => type}} = activity)
       when type in @supported_activities do
     feed = ActivityRepresenter.to_simple_form(activity, user, true)
 
@@ -198,15 +230,40 @@ defmodule Pleroma.Web.Salmon do
       {:ok, private, _} = keys_from_pem(keys)
       {:ok, feed} = encode(private, feed)
 
-      remote_users(activity)
+      remote_users = remote_users(activity)
+
+      salmon_urls = Enum.map(remote_users, & &1.info.salmon)
+      reachable_urls_metadata = Instances.filter_reachable(salmon_urls)
+      reachable_urls = Map.keys(reachable_urls_metadata)
+
+      remote_users
+      |> Enum.filter(&(&1.info.salmon in reachable_urls))
       |> Enum.each(fn remote_user ->
-        Task.start(fn ->
-          Logger.debug(fn -> "Sending Salmon to #{remote_user.ap_id}" end)
-          send_to_user(remote_user, feed, poster)
-        end)
+        Logger.debug(fn -> "Sending Salmon to #{remote_user.ap_id}" end)
+
+        Publisher.enqueue_one(__MODULE__, %{
+          recipient: remote_user,
+          feed: feed,
+          unreachable_since: reachable_urls_metadata[remote_user.info.salmon]
+        })
       end)
     end
   end
 
-  def publish(%{id: id}, _, _), do: Logger.debug(fn -> "Keys missing for user #{id}" end)
+  def publish(%{id: id}, _), do: Logger.debug(fn -> "Keys missing for user #{id}" end)
+
+  def gather_webfinger_links(%User{} = user) do
+    {:ok, _private, public} = keys_from_pem(user.info.keys)
+    magic_key = encode_key(public)
+
+    [
+      %{"rel" => "salmon", "href" => OStatus.salmon_path(user)},
+      %{
+        "rel" => "magic-public-key",
+        "href" => "data:application/magic-public-key,#{magic_key}"
+      }
+    ]
+  end
+
+  def gather_nodeinfo_protocol_names, do: []
 end