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
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}
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
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),
{: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
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),
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),
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
- Enum.reduce(recipients, query, fn (recipient, q) ->
- map = %{ to: [recipient] }
- from activity in q,
- or_where: fragment(~s(? @> ?), activity.data, ^map)
- end)
+ 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)
|> 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
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
projects / akkoma / blobdiff