X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Factivity_pub.ex;h=3a25f614e2f57c4d0946dbbb835945e785ace20c;hb=0f5bff8c66fa2b67633fe05de8aaa1985f4d98f8;hp=8086c830cb48166e3e6de942d79d83d47bcc250c;hpb=7e9f14bf3ca95fda9042e10b44b80d8441fa3c42;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 8086c830c..3a25f614e 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -16,9 +16,23 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     (data["to"] || []) ++ (data["cc"] || [])
   end
 
+  defp check_actor_is_active(actor) do
+    if not is_nil(actor) do
+      with user <- User.get_cached_by_ap_id(actor),
+           nil <- user.info["deactivated"] do
+        :ok
+      else
+        _e -> :reject
+      end
+    else
+      :ok
+    end
+  end
+
   def insert(map, local \\ true) when is_map(map) do
-    with nil <- Activity.get_by_ap_id(map["id"]),
+    with nil <- Activity.normalize(map),
          map <- lazy_put_activity_defaults(map),
+         :ok <- check_actor_is_active(map["actor"]),
          {:ok, map} <- MRF.filter(map),
          :ok <- insert_full_object(map) do
       {:ok, activity} =
@@ -39,15 +53,33 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   end
 
   def stream_out(activity) do
+    public = "https://www.w3.org/ns/activitystreams#Public"
+
     if activity.data["type"] in ["Create", "Announce"] do
       Pleroma.Web.Streamer.stream("user", activity)
+      Pleroma.Web.Streamer.stream("list", activity)
 
-      if Enum.member?(activity.data["to"], "https://www.w3.org/ns/activitystreams#Public") do
+      if Enum.member?(activity.data["to"], public) do
         Pleroma.Web.Streamer.stream("public", activity)
 
         if activity.local do
           Pleroma.Web.Streamer.stream("public:local", activity)
         end
+
+        if activity.data["object"]["attachment"] != [] do
+          Pleroma.Web.Streamer.stream("public:media", activity)
+
+          if activity.local do
+            Pleroma.Web.Streamer.stream("public:local:media", activity)
+          end
+        end
+      else
+        if !Enum.member?(activity.data["cc"] || [], public) &&
+             !Enum.member?(
+               activity.data["to"],
+               User.get_by_ap_id(activity.data["actor"]).follower_address
+             ),
+           do: Pleroma.Web.Streamer.stream("direct", activity)
       end
     end
   end
@@ -81,6 +113,17 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  def reject(%{to: to, actor: actor, object: object} = params) do
+    # only accept false as false value
+    local = !(params[:local] == false)
+
+    with data <- %{"to" => to, "type" => "Reject", "actor" => actor, "object" => object},
+         {:ok, activity} <- insert(data, local),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity}
+    end
+  end
+
   def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
     # only accept false as false value
     local = !(params[:local] == false)
@@ -117,11 +160,19 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  def unlike(%User{} = actor, %Object{} = object) do
-    with %Activity{} = activity <- get_existing_like(actor.ap_id, object),
-         {:ok, _activity} <- Repo.delete(activity),
-         {:ok, object} <- remove_like_from_object(activity, object) do
-      {:ok, object}
+  def unlike(
+        %User{} = actor,
+        %Object{} = object,
+        activity_id \\ nil,
+        local \\ true
+      ) do
+    with %Activity{} = like_activity <- get_existing_like(actor.ap_id, object),
+         unlike_data <- make_unlike_data(actor, like_activity, activity_id),
+         {:ok, unlike_activity} <- insert(unlike_data, local),
+         {:ok, _activity} <- Repo.delete(like_activity),
+         {:ok, object} <- remove_like_from_object(like_activity, object),
+         :ok <- maybe_federate(unlike_activity) do
+      {:ok, unlike_activity, like_activity, object}
     else
       _e -> {:ok, object}
     end
@@ -144,6 +195,24 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  def unannounce(
+        %User{} = actor,
+        %Object{} = object,
+        activity_id \\ nil,
+        local \\ true
+      ) do
+    with %Activity{} = announce_activity <- get_existing_announce(actor.ap_id, object),
+         unannounce_data <- make_unannounce_data(actor, announce_activity, activity_id),
+         {:ok, unannounce_activity} <- insert(unannounce_data, local),
+         :ok <- maybe_federate(unannounce_activity),
+         {:ok, _activity} <- Repo.delete(announce_activity),
+         {:ok, object} <- remove_announce_from_object(announce_activity, object) do
+      {:ok, unannounce_activity, object}
+    else
+      _e -> {:ok, object}
+    end
+  end
+
   def follow(follower, followed, activity_id \\ nil, local \\ true) do
     with data <- make_follow_data(follower, followed, activity_id),
          {:ok, activity} <- insert(data, local),
@@ -152,12 +221,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  def unfollow(follower, followed, local \\ true) do
+  def unfollow(follower, followed, activity_id \\ nil, local \\ true) do
     with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
-         unfollow_data <- make_unfollow_data(follower, followed, follow_activity),
+         {:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"),
+         unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
          {:ok, activity} <- insert(unfollow_data, local),
-         :ok,
-         maybe_federate(activity) do
+         :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
   end
@@ -181,6 +250,38 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  def block(blocker, blocked, activity_id \\ nil, local \\ true) do
+    ap_config = Application.get_env(:pleroma, :activitypub)
+    unfollow_blocked = Keyword.get(ap_config, :unfollow_blocked)
+    outgoing_blocks = Keyword.get(ap_config, :outgoing_blocks)
+
+    with true <- unfollow_blocked do
+      follow_activity = fetch_latest_follow(blocker, blocked)
+
+      if follow_activity do
+        unfollow(blocker, blocked, nil, local)
+      end
+    end
+
+    with true <- outgoing_blocks,
+         block_data <- make_block_data(blocker, blocked, activity_id),
+         {:ok, activity} <- insert(block_data, local),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity}
+    else
+      _e -> {:ok, nil}
+    end
+  end
+
+  def unblock(blocker, blocked, activity_id \\ nil, local \\ true) do
+    with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
+         unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
+         {:ok, activity} <- insert(unblock_data, local),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity}
+    end
+  end
+
   def fetch_activities_for_context(context, opts \\ %{}) do
     public = ["https://www.w3.org/ns/activitystreams#Public"]
 
@@ -220,6 +321,51 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Enum.reverse()
   end
 
+  @valid_visibilities ~w[direct unlisted public private]
+
+  defp restrict_visibility(query, %{visibility: "direct"}) do
+    public = "https://www.w3.org/ns/activitystreams#Public"
+
+    from(
+      activity in query,
+      join: sender in User,
+      on: sender.ap_id == activity.actor,
+      # Are non-direct statuses with no to/cc possible?
+      where:
+        fragment(
+          "not (? && ?)",
+          [^public, sender.follower_address],
+          activity.recipients
+        )
+    )
+  end
+
+  defp restrict_visibility(_query, %{visibility: visibility})
+       when visibility not in @valid_visibilities do
+    Logger.error("Could not restrict visibility to #{visibility}")
+  end
+
+  defp restrict_visibility(query, _visibility), do: query
+
+  def fetch_user_activities(user, reading_user, params \\ %{}) do
+    params =
+      params
+      |> Map.put("type", ["Create", "Announce"])
+      |> Map.put("actor_id", user.ap_id)
+      |> Map.put("whole_db", true)
+
+    recipients =
+      if reading_user do
+        ["https://www.w3.org/ns/activitystreams#Public"] ++
+          [reading_user.ap_id | reading_user.following]
+      else
+        ["https://www.w3.org/ns/activitystreams#Public"]
+      end
+
+    fetch_activities(recipients, params)
+    |> Enum.reverse()
+  end
+
   defp restrict_since(query, %{"since_id" => since_id}) do
     from(activity in query, where: activity.id > ^since_id)
   end
@@ -301,6 +447,15 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_media(query, _), do: query
 
+  defp restrict_replies(query, %{"exclude_replies" => val}) when val == "true" or val == "1" do
+    from(
+      activity in query,
+      where: fragment("?->'object'->>'inReplyTo' is null", activity.data)
+    )
+  end
+
+  defp restrict_replies(query, _), do: query
+
   # Only search through last 100_000 activities by default
   defp restrict_recent(query, %{"whole_db" => true}), do: query
 
@@ -312,11 +467,13 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do
     blocks = info["blocks"] || []
+    domain_blocks = info["domain_blocks"] || []
 
     from(
       activity in query,
       where: fragment("not (? = ANY(?))", activity.actor, ^blocks),
-      where: fragment("not (?->'to' \\?| ?)", activity.data, ^blocks)
+      where: fragment("not (?->'to' \\?| ?)", activity.data, ^blocks),
+      where: fragment("not (split_part(?, '/', 3) = ANY(?))", activity.actor, ^domain_blocks)
     )
   end
 
@@ -327,7 +484,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       activity in query,
       where:
         fragment(
-          "(?->'to' \\?| ?)",
+          "not (coalesce(?->'cc', '{}'::jsonb) \\?| ?)",
           activity.data,
           ^["https://www.w3.org/ns/activitystreams#Public"]
         )
@@ -355,6 +512,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> restrict_recent(opts)
     |> restrict_blocked(opts)
     |> restrict_media(opts)
+    |> restrict_visibility(opts)
+    |> restrict_replies(opts)
   end
 
   def fetch_activities(recipients, opts \\ %{}) do
@@ -364,7 +523,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   end
 
   def upload(file) do
-    data = Upload.store(file)
+    data = Upload.store(file, Application.get_env(:pleroma, :instance)[:dedupe_media])
     Repo.insert(%Object{data: data})
   end
 
@@ -383,26 +542,41 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
           "url" => [%{"href" => data["image"]["url"]}]
         }
 
+    locked = data["manuallyApprovesFollowers"] || false
+    data = Transmogrifier.maybe_fix_user_object(data)
+
     user_data = %{
       ap_id: data["id"],
       info: %{
         "ap_enabled" => true,
         "source_data" => data,
-        "banner" => banner
+        "banner" => banner,
+        "locked" => locked
       },
       avatar: avatar,
-      nickname: "#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}",
       name: data["name"],
       follower_address: data["followers"],
       bio: data["summary"]
     }
 
+    # nickname can be nil because of virtual actors
+    user_data =
+      if data["preferredUsername"] do
+        Map.put(
+          user_data,
+          :nickname,
+          "#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}"
+        )
+      else
+        Map.put(user_data, :nickname, nil)
+      end
+
     {:ok, user_data}
   end
 
   def fetch_and_prepare_user_from_ap_id(ap_id) do
     with {:ok, %{status_code: 200, body: body}} <-
-           @httpoison.get(ap_id, Accept: "application/activity+json"),
+           @httpoison.get(ap_id, [Accept: "application/activity+json"], follow_redirect: true),
          {:ok, data} <- Jason.decode(body) do
       user_data_from_user_object(data)
     else
@@ -430,6 +604,17 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  @quarantined_instances Keyword.get(@instance, :quarantined_instances, [])
+
+  def should_federate?(inbox, public) do
+    if public do
+      true
+    else
+      inbox_info = URI.parse(inbox)
+      inbox_info.host not in @quarantined_instances
+    end
+  end
+
   def publish(actor, activity) do
     followers =
       if actor.follower_address in activity.recipients do
@@ -439,6 +624,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         []
       end
 
+    public = is_public?(activity)
+
     remote_inboxes =
       (Pleroma.Web.Salmon.remote_users(activity) ++ followers)
       |> Enum.filter(fn user -> User.ap_enabled?(user) end)
@@ -446,6 +633,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         (data["endpoints"] && data["endpoints"]["sharedInbox"]) || data["inbox"]
       end)
       |> Enum.uniq()
+      |> Enum.filter(fn inbox -> should_federate?(inbox, public) end)
 
     {:ok, data} = Transmogrifier.prepare_outgoing(activity.data)
     json = Jason.encode!(data)
@@ -464,13 +652,23 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     Logger.info("Federating #{id} to #{inbox}")
     host = URI.parse(inbox).host
 
+    digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64())
+
     signature =
-      Pleroma.Web.HTTPSignatures.sign(actor, %{host: host, "content-length": byte_size(json)})
+      Pleroma.Web.HTTPSignatures.sign(actor, %{
+        host: host,
+        "content-length": byte_size(json),
+        digest: digest
+      })
 
     @httpoison.post(
       inbox,
       json,
-      [{"Content-Type", "application/activity+json"}, {"signature", signature}],
+      [
+        {"Content-Type", "application/activity+json"},
+        {"signature", signature},
+        {"digest", digest}
+      ],
       hackney: [pool: :default]
     )
   end
@@ -493,7 +691,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
                recv_timeout: 20000
              ),
            {:ok, data} <- Jason.decode(body),
-           nil <- Object.get_by_ap_id(data["id"]),
+           nil <- Object.normalize(data),
            params <- %{
              "type" => "Create",
              "to" => data["to"],
@@ -502,7 +700,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
              "object" => data
            },
            {:ok, activity} <- Transmogrifier.handle_incoming(params) do
-        {:ok, Object.get_by_ap_id(activity.data["object"]["id"])}
+        {:ok, Object.normalize(activity.data["object"])}
       else
         object = %Object{} ->
           {:ok, object}
@@ -511,7 +709,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
           Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
 
           case OStatus.fetch_activity_from_url(id) do
-            {:ok, [activity | _]} -> {:ok, Object.get_by_ap_id(activity.data["object"]["id"])}
+            {:ok, [activity | _]} -> {:ok, Object.normalize(activity.data["object"])}
             e -> e
           end
       end