X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Factivity_pub.ex;h=3b918e28f236249123b2a1128ca6a1a3fae44ba3;hb=687db1bc3a13d3303865a104f0475a6fc4671037;hp=4848cc5421fd3142edba43f142027da6eda9d706;hpb=7851b9ba816148706328b7d16eef383ea9256795;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 4848cc542..3b918e28f 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1,5 +1,9 @@
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.{Activity, Repo, Object, Upload, User, Notification}
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.WebFinger
+  alias Pleroma.Web.Federator
+  alias Pleroma.Web.OStatus
   import Ecto.Query
   import Pleroma.Web.ActivityPub.Utils
   require Logger
@@ -14,7 +18,14 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     with nil <- Activity.get_by_ap_id(map["id"]),
          map <- lazy_put_activity_defaults(map),
          :ok <- insert_full_object(map) do
-      {:ok, activity} = Repo.insert(%Activity{data: map, local: local, actor: map["actor"], recipients: get_recipients(map)})
+      {:ok, activity} =
+        Repo.insert(%Activity{
+          data: map,
+          local: local,
+          actor: map["actor"],
+          recipients: get_recipients(map)
+        })
+
       Notification.create_notifications(activity)
       stream_out(activity)
       {:ok, activity}
@@ -27,8 +38,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   def stream_out(activity) do
     if activity.data["type"] in ["Create", "Announce"] do
       Pleroma.Web.Streamer.stream("user", activity)
+
       if Enum.member?(activity.data["to"], "https://www.w3.org/ns/activitystreams#Public") do
         Pleroma.Web.Streamer.stream("public", activity)
+
         if activity.local do
           Pleroma.Web.Streamer.stream("public:local", activity)
         end
@@ -38,18 +51,56 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   def create(%{to: to, actor: actor, context: context, object: object} = params) do
     additional = params[:additional] || %{}
-    local = !(params[:local] == false) # only accept false as false value
+    # only accept false as false value
+    local = !(params[:local] == false)
     published = params[:published]
 
-    with create_data <- make_create_data(%{to: to, actor: actor, published: published, context: context, object: object}, additional),
+    with create_data <-
+           make_create_data(
+             %{to: to, actor: actor, published: published, context: context, object: object},
+             additional
+           ),
          {:ok, activity} <- insert(create_data, local),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
   end
 
+  def accept(%{to: to, actor: actor, object: object} = params) do
+    # only accept false as false value
+    local = !(params[:local] == false)
+
+    with data <- %{"to" => to, "type" => "Accept", "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)
+
+    with data <- %{
+           "to" => to,
+           "cc" => cc,
+           "type" => "Update",
+           "actor" => actor,
+           "object" => object
+         },
+         {:ok, activity} <- insert(data, local),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity}
+    end
+  end
+
   # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
-  def like(%User{ap_id: ap_id} = user, %Object{data: %{"id" => _}} = object, activity_id \\ nil, local \\ true) do
+  def like(
+        %User{ap_id: ap_id} = user,
+        %Object{data: %{"id" => _}} = object,
+        activity_id \\ nil,
+        local \\ true
+      ) do
     with nil <- get_existing_like(ap_id, object),
          like_data <- make_like_data(user, object, activity_id),
          {:ok, activity} <- insert(like_data, local),
@@ -67,12 +118,19 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
          {:ok, _activity} <- Repo.delete(activity),
          {:ok, object} <- remove_like_from_object(activity, object) do
       {:ok, object}
-      else _e -> {:ok, object}
+    else
+      _e -> {:ok, object}
     end
   end
 
-  def announce(%User{ap_id: _} = user, %Object{data: %{"id" => _}} = object, activity_id \\ nil, local \\ true) do
-    with announce_data <- make_announce_data(user, object, activity_id),
+  def announce(
+        %User{ap_id: _} = user,
+        %Object{data: %{"id" => _}} = object,
+        activity_id \\ nil,
+        local \\ true
+      ) do
+    with true <- is_public?(object),
+         announce_data <- make_announce_data(user, object, activity_id),
          {:ok, activity} <- insert(announce_data, local),
          {:ok, object} <- add_announce_to_object(activity, object),
          :ok <- maybe_federate(activity) do
@@ -82,6 +140,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  def unannounce(%User{} = actor, %Object{} = object, local \\ true) do
+    with %Activity{} = activity <- get_existing_announce(actor.ap_id, object),
+         unannounce_data <- make_unannounce_data(actor, object),
+         {:ok, unannounce_activity} <- insert(unannounce_data, local),
+         {:ok, _activity} <- Repo.delete(activity),
+         {:ok, object} <- remove_announce_from_object(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),
@@ -94,19 +164,22 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
          unfollow_data <- make_unfollow_data(follower, followed, follow_activity),
          {:ok, activity} <- insert(unfollow_data, local),
-         :ok, maybe_federate(activity) do
+         :ok,
+         maybe_federate(activity) do
       {:ok, activity}
     end
   end
 
   def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, local \\ true) do
     user = User.get_cached_by_ap_id(actor)
+
     data = %{
       "type" => "Delete",
       "actor" => actor,
       "object" => id,
       "to" => [user.follower_address, "https://www.w3.org/ns/activitystreams#Public"]
     }
+
     with Repo.delete(object),
          Repo.delete_all(Activity.all_non_create_by_object_ap_id_q(id)),
          {:ok, activity} <- insert(data, local),
@@ -116,97 +189,155 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   end
 
   def fetch_activities_for_context(context, opts \\ %{}) do
-    query = from activity in Activity,
-      where: fragment("?->>'type' = ? and ?->>'context' = ?", activity.data, "Create", activity.data, ^context),
-      order_by: [desc: :id]
-    query = restrict_blocked(query, opts)
+    public = ["https://www.w3.org/ns/activitystreams#Public"]
+
+    recipients =
+      if opts["user"], do: [opts["user"].ap_id | opts["user"].following] ++ public, else: public
+
+    query = from(activity in Activity)
+
+    query =
+      query
+      |> restrict_blocked(opts)
+      |> restrict_recipients(recipients, opts["user"])
+
+    query =
+      from(
+        activity in query,
+        where:
+          fragment(
+            "?->>'type' = ? and ?->>'context' = ?",
+            activity.data,
+            "Create",
+            activity.data,
+            ^context
+          ),
+        order_by: [desc: :id]
+      )
+
     Repo.all(query)
   end
 
+  # TODO: Make this work properly with unlisted.
   def fetch_public_activities(opts \\ %{}) do
-    public = ["https://www.w3.org/ns/activitystreams#Public"]
-    fetch_activities(public, opts)
+    q = fetch_activities_query(["https://www.w3.org/ns/activitystreams#Public"], opts)
+
+    q
+    |> Repo.all()
+    |> Enum.reverse()
   end
 
   defp restrict_since(query, %{"since_id" => since_id}) do
-    from activity in query, where: activity.id > ^since_id
+    from(activity in query, where: activity.id > ^since_id)
   end
+
   defp restrict_since(query, _), do: query
 
   defp restrict_tag(query, %{"tag" => tag}) do
-    from activity in query,
+    from(
+      activity in query,
       where: fragment("? <@ (? #> '{\"object\",\"tag\"}')", ^tag, activity.data)
+    )
   end
+
   defp restrict_tag(query, _), do: query
 
-  defp restrict_recipients(query, recipients) do
-    from activity in query,
-     where: fragment("? && ?", ^recipients, activity.recipients)
+  defp restrict_recipients(query, [], user), do: query
+
+  defp restrict_recipients(query, recipients, nil) do
+    from(activity in query, where: fragment("? && ?", ^recipients, activity.recipients))
   end
 
+  defp restrict_recipients(query, recipients, user) do
+    from(
+      activity in query,
+      where: fragment("? && ?", ^recipients, activity.recipients),
+      or_where: activity.actor == ^user.ap_id
+    )
+  end
+
+  defp restrict_limit(query, %{"limit" => limit}) do
+    from(activity in query, limit: ^limit)
+  end
+
+  defp restrict_limit(query, _), do: query
+
   defp restrict_local(query, %{"local_only" => true}) do
-    from activity in query, where: activity.local == true
+    from(activity in query, where: activity.local == true)
   end
+
   defp restrict_local(query, _), do: query
 
   defp restrict_max(query, %{"max_id" => max_id}) do
-    from activity in query, where: activity.id < ^max_id
+    from(activity in query, where: activity.id < ^max_id)
   end
+
   defp restrict_max(query, _), do: query
 
   defp restrict_actor(query, %{"actor_id" => actor_id}) do
-    from activity in query,
-      where: activity.actor == ^actor_id
+    from(activity in query, where: activity.actor == ^actor_id)
   end
+
   defp restrict_actor(query, _), do: query
 
   defp restrict_type(query, %{"type" => type}) when is_binary(type) do
     restrict_type(query, %{"type" => [type]})
   end
+
   defp restrict_type(query, %{"type" => type}) do
-    from activity in query,
-      where: fragment("?->>'type' = ANY(?)", activity.data, ^type)
+    from(activity in query, where: fragment("?->>'type' = ANY(?)", activity.data, ^type))
   end
+
   defp restrict_type(query, _), do: query
 
   defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do
-    from activity in query,
+    from(
+      activity in query,
       where: fragment("? <@ (? #> '{\"object\",\"likes\"}')", ^ap_id, activity.data)
+    )
   end
+
   defp restrict_favorited_by(query, _), do: query
 
   defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do
-    from activity in query,
+    from(
+      activity in query,
       where: fragment("not (? #> '{\"object\",\"attachment\"}' = ?)", activity.data, ^[])
+    )
   end
+
   defp restrict_media(query, _), do: query
 
   # Only search through last 100_000 activities by default
   defp restrict_recent(query, %{"whole_db" => true}), do: query
+
   defp restrict_recent(query, _) do
     since = (Repo.aggregate(Activity, :max, :id) || 0) - 100_000
 
-    from activity in query,
-      where: activity.id > ^since
+    from(activity in query, where: activity.id > ^since)
   end
 
   defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do
     blocks = info["blocks"] || []
-    from activity in query,
-      where: fragment("not (? = ANY(?))", activity.actor, ^blocks)
+    from(activity in query, where: fragment("not (? = ANY(?))", activity.actor, ^blocks))
   end
+
   defp restrict_blocked(query, _), do: query
 
-  def fetch_activities(recipients, opts \\ %{}) do
-    base_query = from activity in Activity,
-      limit: 20,
-      order_by: [fragment("? desc nulls last", activity.id)]
+  def fetch_activities_query(recipients, opts \\ %{}) do
+    base_query =
+      from(
+        activity in Activity,
+        limit: 20,
+        order_by: [fragment("? desc nulls last", activity.id)]
+      )
 
     base_query
-    |> restrict_recipients(recipients)
+    |> restrict_recipients(recipients, opts["user"])
     |> restrict_tag(opts)
     |> restrict_since(opts)
     |> restrict_local(opts)
+    |> restrict_limit(opts)
     |> restrict_max(opts)
     |> restrict_actor(opts)
     |> restrict_type(opts)
@@ -214,8 +345,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> restrict_recent(opts)
     |> restrict_blocked(opts)
     |> restrict_media(opts)
-    |> Repo.all
-    |> Enum.reverse
+  end
+
+  def fetch_activities(recipients, opts \\ %{}) do
+    fetch_activities_query(recipients, opts)
+    |> Repo.all()
+    |> Enum.reverse()
   end
 
   def upload(file) do
@@ -223,41 +358,168 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     Repo.insert(%Object{data: data})
   end
 
+  def user_data_from_user_object(data) do
+    avatar =
+      data["icon"]["url"] &&
+        %{
+          "type" => "Image",
+          "url" => [%{"href" => data["icon"]["url"]}]
+        }
+
+    banner =
+      data["image"]["url"] &&
+        %{
+          "type" => "Image",
+          "url" => [%{"href" => data["image"]["url"]}]
+        }
+
+    user_data = %{
+      ap_id: data["id"],
+      info: %{
+        "ap_enabled" => true,
+        "source_data" => data,
+        "banner" => banner
+      },
+      avatar: avatar,
+      nickname: "#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}",
+      name: data["name"],
+      follower_address: data["followers"],
+      bio: data["summary"]
+    }
+
+    {: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"),
+         {:ok, data} <- Jason.decode(body) do
+      user_data_from_user_object(data)
+    else
+      e -> Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
+    end
+  end
+
   def make_user_from_ap_id(ap_id) do
-    with {:ok, %{status_code: 200, body: body}} <- @httpoison.get(ap_id, ["Accept": "application/activity+json"]),
-    {:ok, data} <- Poison.decode(body)
-      do
-      user_data = %{
-        ap_id: data["id"],
-        info: %{
-          "ap_enabled" => true,
-          "source_data" => data
-        },
-        nickname: "#{data["preferredUsername"]}@#{URI.parse(ap_id).host}",
-        name: data["name"]
-      }
-
-      User.insert_or_update_user(user_data)
+    if user = User.get_by_ap_id(ap_id) do
+      Transmogrifier.upgrade_user_from_ap_id(ap_id)
+    else
+      with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id) do
+        User.insert_or_update_user(data)
+      else
+        e -> {:error, e}
+      end
     end
   end
 
-  # TODO: Extract to own module, align as close to Mastodon format as possible.
-  def sanitize_outgoing_activity_data(data) do
-    data
-    |> Map.put("@context", "https://www.w3.org/ns/activitystreams")
+  def make_user_from_nickname(nickname) do
+    with {:ok, %{"ap_id" => ap_id}} when not is_nil(ap_id) <- WebFinger.finger(nickname) do
+      make_user_from_ap_id(ap_id)
+    else
+      _e -> {:error, "No AP id in WebFinger"}
+    end
   end
 
   def publish(actor, activity) do
-    remote_users = Pleroma.Web.Salmon.remote_users(activity)
-    data = sanitize_outgoing_activity_data(activity.data)
-    Enum.each remote_users, fn(user) ->
-      if user.info["ap_enabled"] do
-        inbox = user.info["source_data"]["inbox"]
-        Logger.info("Federating #{activity.data["id"]} to #{inbox}")
-        host = URI.parse(inbox).host
-        signature = Pleroma.Web.HTTPSignatures.sign(actor, %{host: host})
-        @httpoison.post(inbox, Poison.encode!(data), [{"Content-Type", "application/activity+json"}, {"signature", signature}])
+    followers =
+      if actor.follower_address in activity.recipients do
+        {:ok, followers} = User.get_followers(actor)
+        followers |> Enum.filter(&(!&1.local))
+      else
+        []
+      end
+
+    remote_inboxes =
+      (Pleroma.Web.Salmon.remote_users(activity) ++ followers)
+      |> Enum.filter(fn user -> User.ap_enabled?(user) end)
+      |> Enum.map(fn %{info: %{"source_data" => data}} ->
+        (data["endpoints"] && data["endpoints"]["sharedInbox"]) || data["inbox"]
+      end)
+      |> Enum.uniq()
+
+    {:ok, data} = Transmogrifier.prepare_outgoing(activity.data)
+    json = Jason.encode!(data)
+
+    Enum.each(remote_inboxes, fn inbox ->
+      Federator.enqueue(:publish_single_ap, %{
+        inbox: inbox,
+        json: json,
+        actor: actor,
+        id: activity.data["id"]
+      })
+    end)
+  end
+
+  def publish_one(%{inbox: inbox, json: json, actor: actor, id: id}) do
+    Logger.info("Federating #{id} to #{inbox}")
+    host = URI.parse(inbox).host
+
+    signature =
+      Pleroma.Web.HTTPSignatures.sign(actor, %{host: host, "content-length": byte_size(json)})
+
+    @httpoison.post(
+      inbox,
+      json,
+      [{"Content-Type", "application/activity+json"}, {"signature", signature}],
+      hackney: [pool: :default]
+    )
+  end
+
+  # TODO:
+  # This will create a Create activity, which we need internally at the moment.
+  def fetch_object_from_id(id) do
+    if object = Object.get_cached_by_ap_id(id) do
+      {:ok, object}
+    else
+      Logger.info("Fetching #{id} via AP")
+
+      with true <- String.starts_with?(id, "http"),
+           {:ok, %{body: body, status_code: code}} when code in 200..299 <-
+             @httpoison.get(
+               id,
+               [Accept: "application/activity+json"],
+               follow_redirect: true,
+               timeout: 10000,
+               recv_timeout: 20000
+             ),
+           {:ok, data} <- Jason.decode(body),
+           nil <- Object.get_by_ap_id(data["id"]),
+           params <- %{
+             "type" => "Create",
+             "to" => data["to"],
+             "cc" => data["cc"],
+             "actor" => data["attributedTo"],
+             "object" => data
+           },
+           {:ok, activity} <- Transmogrifier.handle_incoming(params) do
+        {:ok, Object.get_by_ap_id(activity.data["object"]["id"])}
+      else
+        object = %Object{} ->
+          {:ok, object}
+
+        e ->
+          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"])}
+            e -> e
+          end
       end
     end
   end
+
+  def is_public?(activity) do
+    "https://www.w3.org/ns/activitystreams#Public" in (activity.data["to"] ++
+                                                         (activity.data["cc"] || []))
+  end
+
+  def visible_for_user?(activity, nil) do
+    is_public?(activity)
+  end
+
+  def visible_for_user?(activity, user) do
+    x = [user.ap_id | user.following]
+    y = activity.data["to"] ++ (activity.data["cc"] || [])
+    visible_for_user?(activity, nil) || Enum.any?(x, &(&1 in y))
+  end
 end