Federate data through persistent websocket connections
This commit is contained in:
Steven Fuchs
lain
parent
49584a9928
commit
f2ef9735c5
25 changed files with 1479 additions and 49 deletions
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@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
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## Unreleased
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### Added
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- Experimental websocket-based federation between Pleroma instances.
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### Changed
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- Renamed `:await_up_timeout` in `:connections_pool` namespace to `:connect_timeout`, old name is deprecated.
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@ -130,6 +130,7 @@
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dispatch: [
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{:_,
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[
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{"/api/fedsocket/v1", Pleroma.Web.FedSockets.IncomingHandler, []},
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{"/api/v1/streaming", Pleroma.Web.MastodonAPI.WebsocketHandler, []},
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{"/websocket", Phoenix.Endpoint.CowboyWebSocket,
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{Phoenix.Transports.WebSocket,
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@ -148,6 +149,16 @@
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"SameSite=Lax"
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]
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config :pleroma, :fed_sockets,
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enabled: false,
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connection_duration: :timer.hours(8),
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rejection_duration: :timer.minutes(15),
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fed_socket_fetches: [
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default: 12_000,
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interval: 3_000,
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lazy: false
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]
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# Configures Elixir's Logger
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config :logger, :console,
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level: :debug,
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@ -532,6 +543,7 @@
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token_expiration: 5,
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federator_incoming: 50,
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federator_outgoing: 50,
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ingestion_queue: 50,
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web_push: 50,
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mailer: 10,
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transmogrifier: 20,
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@ -270,6 +270,19 @@
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}
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]
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},
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%{
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group: :pleroma,
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key: :fed_sockets,
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type: :group,
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description: "Websocket based federation",
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children: [
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%{
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key: :enabled,
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type: :boolean,
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description: "Enable FedSockets"
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}
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]
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},
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%{
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group: :pleroma,
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key: Pleroma.Emails.Mailer,
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@ -19,6 +19,11 @@
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level: :warn,
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format: "\n[$level] $message\n"
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config :pleroma, :fed_sockets,
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enabled: false,
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connection_duration: 5,
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rejection_duration: 5
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config :pleroma, :auth, oauth_consumer_strategies: []
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config :pleroma, Pleroma.Upload,
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@ -225,6 +225,16 @@ Enables the worker which processes posts scheduled for deletion. Pinned posts ar
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* `enabled`: whether expired activities will be sent to the job queue to be deleted
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## FedSockets
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FedSockets is an experimental feature allowing for Pleroma backends to federate using a persistant websocket connection as opposed to making each federation a seperate http connection. This feature is currently off by default. It is configurable throught he following options.
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### :fedsockets
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* `enabled`: Enables FedSockets for this instance. `false` by default.
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* `connection_duration`: Time an idle websocket is kept open.
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* `rejection_duration`: Failures to connect via FedSockets will not be retried for this period of time.
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* `fed_socket_fetches` and `fed_socket_rejections`: Settings passed to `cachex` for the fetch registry, and rejection stacks. See `Pleroma.Web.FedSockets` for more details.
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## Frontends
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### :frontend_configurations
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@ -99,7 +99,7 @@ def start(_type, _args) do
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{Oban, Config.get(Oban)}
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] ++
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task_children(@env) ++
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streamer_child(@env) ++
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dont_run_in_test(@env) ++
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chat_child(@env, chat_enabled?()) ++
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[
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Pleroma.Web.Endpoint,
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@ -188,16 +188,17 @@ def build_cachex(type, opts),
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defp chat_enabled?, do: Config.get([:chat, :enabled])
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defp streamer_child(env) when env in [:test, :benchmark], do: []
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defp dont_run_in_test(env) when env in [:test, :benchmark], do: []
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defp streamer_child(_) do
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defp dont_run_in_test(_) do
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[
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{Registry,
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[
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name: Pleroma.Web.Streamer.registry(),
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keys: :duplicate,
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partitions: System.schedulers_online()
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]}
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]},
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Pleroma.Web.FedSockets.Supervisor
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]
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end
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@ -12,6 +12,7 @@ defmodule Pleroma.Object.Fetcher do
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alias Pleroma.Web.ActivityPub.ObjectValidator
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alias Pleroma.Web.ActivityPub.Transmogrifier
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alias Pleroma.Web.Federator
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alias Pleroma.Web.FedSockets
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require Logger
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require Pleroma.Constants
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@ -182,27 +183,20 @@ defp maybe_date_fetch(headers, date) do
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end
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end
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def fetch_and_contain_remote_object_from_id(id) when is_binary(id) do
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def fetch_and_contain_remote_object_from_id(prm, opts \\ [])
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def fetch_and_contain_remote_object_from_id(%{"id" => id}, opts),
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do: fetch_and_contain_remote_object_from_id(id, opts)
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def fetch_and_contain_remote_object_from_id(id, opts) when is_binary(id) do
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Logger.debug("Fetching object #{id} via AP")
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date = Pleroma.Signature.signed_date()
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headers =
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[{"accept", "application/activity+json"}]
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|> maybe_date_fetch(date)
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|> sign_fetch(id, date)
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Logger.debug("Fetch headers: #{inspect(headers)}")
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with {:scheme, true} <- {:scheme, String.starts_with?(id, "http")},
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{:ok, %{body: body, status: code}} when code in 200..299 <- HTTP.get(id, headers),
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{:ok, data} <- Jason.decode(body),
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{:ok, body} <- get_object(id, opts),
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{:ok, data} <- safe_json_decode(body),
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:ok <- Containment.contain_origin_from_id(id, data) do
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{:ok, data}
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else
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{:ok, %{status: code}} when code in [404, 410] ->
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{:error, "Object has been deleted"}
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{:scheme, _} ->
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{:error, "Unsupported URI scheme"}
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@ -214,8 +208,44 @@ def fetch_and_contain_remote_object_from_id(id) when is_binary(id) do
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end
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end
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def fetch_and_contain_remote_object_from_id(%{"id" => id}),
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do: fetch_and_contain_remote_object_from_id(id)
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def fetch_and_contain_remote_object_from_id(_id, _opts),
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do: {:error, "id must be a string"}
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def fetch_and_contain_remote_object_from_id(_id), do: {:error, "id must be a string"}
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defp get_object(id, opts) do
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with false <- Keyword.get(opts, :force_http, false),
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{:ok, fedsocket} <- FedSockets.get_or_create_fed_socket(id) do
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Logger.debug("fetching via fedsocket - #{inspect(id)}")
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FedSockets.fetch(fedsocket, id)
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else
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_other ->
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Logger.debug("fetching via http - #{inspect(id)}")
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get_object_http(id)
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end
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end
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defp get_object_http(id) do
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date = Pleroma.Signature.signed_date()
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headers =
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[{"accept", "application/activity+json"}]
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|> maybe_date_fetch(date)
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|> sign_fetch(id, date)
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case HTTP.get(id, headers) do
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{:ok, %{body: body, status: code}} when code in 200..299 ->
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{:ok, body}
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{:ok, %{status: code}} when code in [404, 410] ->
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{:error, "Object has been deleted"}
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{:error, e} ->
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{:error, e}
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e ->
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{:error, e}
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end
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end
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defp safe_json_decode(nil), do: {:ok, nil}
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defp safe_json_decode(json), do: Jason.decode(json)
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end
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@ -39,7 +39,7 @@ def key_id_to_actor_id(key_id) do
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def fetch_public_key(conn) do
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with %{"keyId" => kid} <- HTTPSignatures.signature_for_conn(conn),
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{:ok, actor_id} <- key_id_to_actor_id(kid),
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{:ok, public_key} <- User.get_public_key_for_ap_id(actor_id) do
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{:ok, public_key} <- User.get_public_key_for_ap_id(actor_id, force_http: true) do
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{:ok, public_key}
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else
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e ->
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@ -50,8 +50,8 @@ def fetch_public_key(conn) do
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def refetch_public_key(conn) do
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with %{"keyId" => kid} <- HTTPSignatures.signature_for_conn(conn),
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{:ok, actor_id} <- key_id_to_actor_id(kid),
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{:ok, _user} <- ActivityPub.make_user_from_ap_id(actor_id),
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{:ok, public_key} <- User.get_public_key_for_ap_id(actor_id) do
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{:ok, _user} <- ActivityPub.make_user_from_ap_id(actor_id, force_http: true),
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{:ok, public_key} <- User.get_public_key_for_ap_id(actor_id, force_http: true) do
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{:ok, public_key}
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else
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e ->
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@ -1820,12 +1820,12 @@ def html_filter_policy(%User{no_rich_text: true}) do
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def html_filter_policy(_), do: Config.get([:markup, :scrub_policy])
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def fetch_by_ap_id(ap_id), do: ActivityPub.make_user_from_ap_id(ap_id)
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def fetch_by_ap_id(ap_id, opts \\ []), do: ActivityPub.make_user_from_ap_id(ap_id, opts)
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def get_or_fetch_by_ap_id(ap_id) do
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def get_or_fetch_by_ap_id(ap_id, opts \\ []) do
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cached_user = get_cached_by_ap_id(ap_id)
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maybe_fetched_user = needs_update?(cached_user) && fetch_by_ap_id(ap_id)
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maybe_fetched_user = needs_update?(cached_user) && fetch_by_ap_id(ap_id, opts)
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case {cached_user, maybe_fetched_user} do
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{_, {:ok, %User{} = user}} ->
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@ -1898,8 +1898,8 @@ def public_key(%{public_key: public_key_pem}) when is_binary(public_key_pem) do
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def public_key(_), do: {:error, "key not found"}
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def get_public_key_for_ap_id(ap_id) do
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with {:ok, %User{} = user} <- get_or_fetch_by_ap_id(ap_id),
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def get_public_key_for_ap_id(ap_id, opts \\ []) do
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with {:ok, %User{} = user} <- get_or_fetch_by_ap_id(ap_id, opts),
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{:ok, public_key} <- public_key(user) do
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{:ok, public_key}
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else
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@ -1270,10 +1270,12 @@ defp object_to_user_data(data) do
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def fetch_follow_information_for_user(user) do
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with {:ok, following_data} <-
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Fetcher.fetch_and_contain_remote_object_from_id(user.following_address),
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Fetcher.fetch_and_contain_remote_object_from_id(user.following_address,
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force_http: true
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),
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{:ok, hide_follows} <- collection_private(following_data),
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{:ok, followers_data} <-
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Fetcher.fetch_and_contain_remote_object_from_id(user.follower_address),
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Fetcher.fetch_and_contain_remote_object_from_id(user.follower_address, force_http: true),
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{:ok, hide_followers} <- collection_private(followers_data) do
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{:ok,
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%{
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@ -1347,8 +1349,8 @@ def user_data_from_user_object(data) do
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end
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end
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def fetch_and_prepare_user_from_ap_id(ap_id) do
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with {:ok, data} <- Fetcher.fetch_and_contain_remote_object_from_id(ap_id),
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def fetch_and_prepare_user_from_ap_id(ap_id, opts \\ []) do
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with {:ok, data} <- Fetcher.fetch_and_contain_remote_object_from_id(ap_id, opts),
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{:ok, data} <- user_data_from_user_object(data) do
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{:ok, maybe_update_follow_information(data)}
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else
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@ -1390,13 +1392,13 @@ def maybe_handle_clashing_nickname(data) do
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end
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end
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def make_user_from_ap_id(ap_id) do
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def make_user_from_ap_id(ap_id, opts \\ []) do
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user = User.get_cached_by_ap_id(ap_id)
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if user && !User.ap_enabled?(user) do
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Transmogrifier.upgrade_user_from_ap_id(ap_id)
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else
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with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id) do
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with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id, opts) do
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if user do
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user
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|> User.remote_user_changeset(data)
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@ -13,6 +13,7 @@ defmodule Pleroma.Web.ActivityPub.Publisher do
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alias Pleroma.User
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alias Pleroma.Web.ActivityPub.Relay
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alias Pleroma.Web.ActivityPub.Transmogrifier
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alias Pleroma.Web.FedSockets
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require Pleroma.Constants
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@ -50,15 +51,35 @@ def is_representable?(%Activity{} = activity) do
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def publish_one(%{inbox: inbox, json: json, actor: %User{} = actor, id: id} = params) do
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Logger.debug("Federating #{id} to #{inbox}")
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uri = URI.parse(inbox)
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case FedSockets.get_or_create_fed_socket(inbox) do
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{:ok, fedsocket} ->
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Logger.debug("publishing via fedsockets - #{inspect(inbox)}")
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FedSockets.publish(fedsocket, json)
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_ ->
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Logger.debug("publishing via http - #{inspect(inbox)}")
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http_publish(inbox, actor, json, params)
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end
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end
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def publish_one(%{actor_id: actor_id} = params) do
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actor = User.get_cached_by_id(actor_id)
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params
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|> Map.delete(:actor_id)
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|> Map.put(:actor, actor)
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|> publish_one()
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end
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defp http_publish(inbox, actor, json, params) do
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uri = %{path: path} = URI.parse(inbox)
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digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64())
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date = Pleroma.Signature.signed_date()
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signature =
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Pleroma.Signature.sign(actor, %{
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"(request-target)": "post #{uri.path}",
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"(request-target)": "post #{path}",
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host: signature_host(uri),
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"content-length": byte_size(json),
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digest: digest,
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@ -89,15 +110,6 @@ def publish_one(%{inbox: inbox, json: json, actor: %User{} = actor, id: id} = pa
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end
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end
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def publish_one(%{actor_id: actor_id} = params) do
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actor = User.get_cached_by_id(actor_id)
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params
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|> Map.delete(:actor_id)
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|> Map.put(:actor, actor)
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|> publish_one()
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end
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defp signature_host(%URI{port: port, scheme: scheme, host: host}) do
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if port == URI.default_port(scheme) do
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host
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@ -1000,7 +1000,7 @@ def perform(:user_upgrade, user) do
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def upgrade_user_from_ap_id(ap_id) do
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with %User{local: false} = user <- User.get_cached_by_ap_id(ap_id),
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{:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id),
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{:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id, force_http: true),
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{:ok, user} <- update_user(user, data) do
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TransmogrifierWorker.enqueue("user_upgrade", %{"user_id" => user.id})
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{:ok, user}
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185
lib/pleroma/web/fed_sockets/fed_registry.ex
Normal file
185
lib/pleroma/web/fed_sockets/fed_registry.ex
Normal file
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@ -0,0 +1,185 @@
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# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.FedSockets.FedRegistry do
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@moduledoc """
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The FedRegistry stores the active FedSockets for quick retrieval.
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The storage and retrieval portion of the FedRegistry is done in process through
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elixir's `Registry` module for speed and its ability to monitor for terminated processes.
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Dropped connections will be caught by `Registry` and deleted. Since the next
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message will initiate a new connection there is no reason to try and reconnect at that point.
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Normally outside modules should have no need to call or use the FedRegistry themselves.
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"""
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alias Pleroma.Web.FedSockets.FedSocket
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alias Pleroma.Web.FedSockets.SocketInfo
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require Logger
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@default_rejection_duration 15 * 60 * 1000
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@rejections :fed_socket_rejections
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@doc """
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Retrieves a FedSocket from the Registry given it's origin.
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The origin is expected to be a string identifying the endpoint "example.com" or "example2.com:8080"
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Will return:
|
||||
* {:ok, fed_socket} for working FedSockets
|
||||
* {:error, :rejected} for origins that have been tried and refused within the rejection duration interval
|
||||
* {:error, some_reason} usually :missing for unknown origins
|
||||
"""
|
||||
def get_fed_socket(origin) do
|
||||
case get_registry_data(origin) do
|
||||
{:error, reason} ->
|
||||
{:error, reason}
|
||||
|
||||
{:ok, %{state: :connected} = socket_info} ->
|
||||
{:ok, socket_info}
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
Adds a connected FedSocket to the Registry.
|
||||
|
||||
Always returns {:ok, fed_socket}
|
||||
"""
|
||||
def add_fed_socket(origin, pid \\ nil) do
|
||||
origin
|
||||
|> SocketInfo.build(pid)
|
||||
|> SocketInfo.connect()
|
||||
|> add_socket_info
|
||||
end
|
||||
|
||||
defp add_socket_info(%{origin: origin, state: :connected} = socket_info) do
|
||||
case Registry.register(FedSockets.Registry, origin, socket_info) do
|
||||
{:ok, _owner} ->
|
||||
clear_prior_rejection(origin)
|
||||
Logger.debug("fedsocket added: #{inspect(origin)}")
|
||||
|
||||
{:ok, socket_info}
|
||||
|
||||
{:error, {:already_registered, _pid}} ->
|
||||
FedSocket.close(socket_info)
|
||||
existing_socket_info = Registry.lookup(FedSockets.Registry, origin)
|
||||
|
||||
{:ok, existing_socket_info}
|
||||
|
||||
_ ->
|
||||
{:error, :error_adding_socket}
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
Mark this origin as having rejected a connection attempt.
|
||||
This will keep it from getting additional connection attempts
|
||||
for a period of time specified in the config.
|
||||
|
||||
Always returns {:ok, new_reg_data}
|
||||
"""
|
||||
def set_host_rejected(uri) do
|
||||
new_reg_data =
|
||||
uri
|
||||
|> SocketInfo.origin()
|
||||
|> get_or_create_registry_data()
|
||||
|> set_to_rejected()
|
||||
|> save_registry_data()
|
||||
|
||||
{:ok, new_reg_data}
|
||||
end
|
||||
|
||||
@doc """
|
||||
Retrieves the FedRegistryData from the Registry given it's origin.
|
||||
|
||||
The origin is expected to be a string identifying the endpoint "example.com" or "example2.com:8080"
|
||||
|
||||
Will return:
|
||||
* {:ok, fed_registry_data} for known origins
|
||||
* {:error, :missing} for uniknown origins
|
||||
* {:error, :cache_error} indicating some low level runtime issues
|
||||
"""
|
||||
def get_registry_data(origin) do
|
||||
case Registry.lookup(FedSockets.Registry, origin) do
|
||||
[] ->
|
||||
if is_rejected?(origin) do
|
||||
Logger.debug("previously rejected fedsocket requested")
|
||||
{:error, :rejected}
|
||||
else
|
||||
{:error, :missing}
|
||||
end
|
||||
|
||||
[{_pid, %{state: :connected} = socket_info}] ->
|
||||
{:ok, socket_info}
|
||||
|
||||
_ ->
|
||||
{:error, :cache_error}
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
Retrieves a map of all sockets from the Registry. The keys are the origins and the values are the corresponding SocketInfo
|
||||
"""
|
||||
def list_all do
|
||||
(list_all_connected() ++ list_all_rejected())
|
||||
|> Enum.into(%{})
|
||||
end
|
||||
|
||||
defp list_all_connected do
|
||||
FedSockets.Registry
|
||||
|> Registry.select([{{:"$1", :_, :"$3"}, [], [{{:"$1", :"$3"}}]}])
|
||||
end
|
||||
|
||||
defp list_all_rejected do
|
||||
{:ok, keys} = Cachex.keys(@rejections)
|
||||
|
||||
{:ok, registry_data} =
|
||||
Cachex.execute(@rejections, fn worker ->
|
||||
Enum.map(keys, fn k -> {k, Cachex.get!(worker, k)} end)
|
||||
end)
|
||||
|
||||
registry_data
|
||||
end
|
||||
|
||||
defp clear_prior_rejection(origin),
|
||||
do: Cachex.del(@rejections, origin)
|
||||
|
||||
defp is_rejected?(origin) do
|
||||
case Cachex.get(@rejections, origin) do
|
||||
{:ok, nil} ->
|
||||
false
|
||||
|
||||
{:ok, _} ->
|
||||
true
|
||||
end
|
||||
end
|
||||
|
||||
defp get_or_create_registry_data(origin) do
|
||||
case get_registry_data(origin) do
|
||||
{:error, :missing} ->
|
||||
%SocketInfo{origin: origin}
|
||||
|
||||
{:ok, socket_info} ->
|
||||
socket_info
|
||||
end
|
||||
end
|
||||
|
||||
defp save_registry_data(%SocketInfo{origin: origin, state: :connected} = socket_info) do
|
||||
{:ok, true} = Registry.update_value(FedSockets.Registry, origin, fn _ -> socket_info end)
|
||||
socket_info
|
||||
end
|
||||
|
||||
defp save_registry_data(%SocketInfo{origin: origin, state: :rejected} = socket_info) do
|
||||
rejection_expiration =
|
||||
Pleroma.Config.get([:fed_sockets, :rejection_duration], @default_rejection_duration)
|
||||
|
||||
{:ok, true} = Cachex.put(@rejections, origin, socket_info, ttl: rejection_expiration)
|
||||
socket_info
|
||||
end
|
||||
|
||||
defp set_to_rejected(%SocketInfo{} = socket_info),
|
||||
do: %SocketInfo{socket_info | state: :rejected}
|
||||
end
|
||||
137
lib/pleroma/web/fed_sockets/fed_socket.ex
Normal file
137
lib/pleroma/web/fed_sockets/fed_socket.ex
Normal file
|
|
@ -0,0 +1,137 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.FedSocket do
|
||||
@moduledoc """
|
||||
The FedSocket module abstracts the actions to be taken taken on connections regardless of
|
||||
whether the connection started as inbound or outbound.
|
||||
|
||||
|
||||
Normally outside modules will have no need to call the FedSocket module directly.
|
||||
"""
|
||||
|
||||
alias Pleroma.Object
|
||||
alias Pleroma.Object.Containment
|
||||
alias Pleroma.User
|
||||
alias Pleroma.Web.ActivityPub.ObjectView
|
||||
alias Pleroma.Web.ActivityPub.UserView
|
||||
alias Pleroma.Web.ActivityPub.Visibility
|
||||
alias Pleroma.Web.FedSockets.FetchRegistry
|
||||
alias Pleroma.Web.FedSockets.IngesterWorker
|
||||
alias Pleroma.Web.FedSockets.OutgoingHandler
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
|
||||
require Logger
|
||||
|
||||
@shake "61dd18f7-f1e6-49a4-939a-a749fcdc1103"
|
||||
|
||||
def connect_to_host(uri) do
|
||||
case OutgoingHandler.start_link(uri) do
|
||||
{:ok, pid} ->
|
||||
{:ok, pid}
|
||||
|
||||
error ->
|
||||
{:error, error}
|
||||
end
|
||||
end
|
||||
|
||||
def close(%SocketInfo{pid: socket_pid}),
|
||||
do: Process.send(socket_pid, :close, [])
|
||||
|
||||
def publish(%SocketInfo{pid: socket_pid}, json) do
|
||||
%{action: :publish, data: json}
|
||||
|> Jason.encode!()
|
||||
|> send_packet(socket_pid)
|
||||
end
|
||||
|
||||
def fetch(%SocketInfo{pid: socket_pid}, id) do
|
||||
fetch_uuid = FetchRegistry.register_fetch(id)
|
||||
|
||||
%{action: :fetch, data: id, uuid: fetch_uuid}
|
||||
|> Jason.encode!()
|
||||
|> send_packet(socket_pid)
|
||||
|
||||
wait_for_fetch_to_return(fetch_uuid, 0)
|
||||
end
|
||||
|
||||
def receive_package(%SocketInfo{} = fed_socket, json) do
|
||||
json
|
||||
|> Jason.decode!()
|
||||
|> process_package(fed_socket)
|
||||
end
|
||||
|
||||
defp wait_for_fetch_to_return(uuid, cntr) do
|
||||
case FetchRegistry.check_fetch(uuid) do
|
||||
{:error, :waiting} ->
|
||||
Process.sleep(:math.pow(cntr, 3) |> Kernel.trunc())
|
||||
wait_for_fetch_to_return(uuid, cntr + 1)
|
||||
|
||||
{:error, :missing} ->
|
||||
Logger.error("FedSocket fetch timed out - #{inspect(uuid)}")
|
||||
{:error, :timeout}
|
||||
|
||||
{:ok, _fr} ->
|
||||
FetchRegistry.pop_fetch(uuid)
|
||||
end
|
||||
end
|
||||
|
||||
defp process_package(%{"action" => "publish", "data" => data}, %{origin: origin} = _fed_socket) do
|
||||
if Containment.contain_origin(origin, data) do
|
||||
IngesterWorker.enqueue("ingest", %{"object" => data})
|
||||
end
|
||||
|
||||
{:reply, %{"action" => "publish_reply", "status" => "processed"}}
|
||||
end
|
||||
|
||||
defp process_package(%{"action" => "fetch_reply", "uuid" => uuid, "data" => data}, _fed_socket) do
|
||||
FetchRegistry.register_fetch_received(uuid, data)
|
||||
{:noreply, nil}
|
||||
end
|
||||
|
||||
defp process_package(%{"action" => "fetch", "uuid" => uuid, "data" => ap_id}, _fed_socket) do
|
||||
{:ok, data} = render_fetched_data(ap_id, uuid)
|
||||
{:reply, data}
|
||||
end
|
||||
|
||||
defp process_package(%{"action" => "publish_reply"}, _fed_socket) do
|
||||
{:noreply, nil}
|
||||
end
|
||||
|
||||
defp process_package(other, _fed_socket) do
|
||||
Logger.warn("unknown json packages received #{inspect(other)}")
|
||||
{:noreply, nil}
|
||||
end
|
||||
|
||||
defp render_fetched_data(ap_id, uuid) do
|
||||
{:ok,
|
||||
%{
|
||||
"action" => "fetch_reply",
|
||||
"status" => "processed",
|
||||
"uuid" => uuid,
|
||||
"data" => represent_item(ap_id)
|
||||
}}
|
||||
end
|
||||
|
||||
defp represent_item(ap_id) do
|
||||
case User.get_by_ap_id(ap_id) do
|
||||
nil ->
|
||||
object = Object.get_cached_by_ap_id(ap_id)
|
||||
|
||||
if Visibility.is_public?(object) do
|
||||
Phoenix.View.render_to_string(ObjectView, "object.json", object: object)
|
||||
else
|
||||
nil
|
||||
end
|
||||
|
||||
user ->
|
||||
Phoenix.View.render_to_string(UserView, "user.json", user: user)
|
||||
end
|
||||
end
|
||||
|
||||
defp send_packet(data, socket_pid) do
|
||||
Process.send(socket_pid, {:send, data}, [])
|
||||
end
|
||||
|
||||
def shake, do: @shake
|
||||
end
|
||||
182
lib/pleroma/web/fed_sockets/fed_sockets.ex
Normal file
182
lib/pleroma/web/fed_sockets/fed_sockets.ex
Normal file
|
|
@ -0,0 +1,182 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets do
|
||||
@moduledoc """
|
||||
This documents the FedSockets framework. A framework for federating
|
||||
ActivityPub objects between servers via persistant WebSocket connections.
|
||||
|
||||
FedSockets allow servers to authenticate on first contact and maintain that
|
||||
connection, eliminating the need to authenticate every time data needs to be shared.
|
||||
|
||||
## Protocol
|
||||
FedSockets currently support 2 types of data transfer:
|
||||
* `publish` method which doesn't require a response
|
||||
* `fetch` method requires a response be sent
|
||||
|
||||
### Publish
|
||||
The publish operation sends a json encoded map of the shape:
|
||||
%{action: :publish, data: json}
|
||||
and accepts (but does not require) a reply of form:
|
||||
%{"action" => "publish_reply"}
|
||||
|
||||
The outgoing params represent
|
||||
* data: ActivityPub object encoded into json
|
||||
|
||||
|
||||
### Fetch
|
||||
The fetch operation sends a json encoded map of the shape:
|
||||
%{action: :fetch, data: id, uuid: fetch_uuid}
|
||||
and requires a reply of form:
|
||||
%{"action" => "fetch_reply", "uuid" => uuid, "data" => data}
|
||||
|
||||
The outgoing params represent
|
||||
* id: an ActivityPub object URI
|
||||
* uuid: a unique uuid generated by the sender
|
||||
|
||||
The reply params represent
|
||||
* data: an ActivityPub object encoded into json
|
||||
* uuid: the uuid sent along with the fetch request
|
||||
|
||||
## Examples
|
||||
Clients of FedSocket transfers shouldn't need to use any of the functions outside of this module.
|
||||
|
||||
A typical publish operation can be performed through the following code, and a fetch operation in a similar manner.
|
||||
|
||||
case FedSockets.get_or_create_fed_socket(inbox) do
|
||||
{:ok, fedsocket} ->
|
||||
FedSockets.publish(fedsocket, json)
|
||||
|
||||
_ ->
|
||||
alternative_publish(inbox, actor, json, params)
|
||||
end
|
||||
|
||||
## Configuration
|
||||
FedSockets have the following config settings
|
||||
|
||||
config :pleroma, :fed_sockets,
|
||||
enabled: true,
|
||||
ping_interval: :timer.seconds(15),
|
||||
connection_duration: :timer.hours(1),
|
||||
rejection_duration: :timer.hours(1),
|
||||
fed_socket_fetches: [
|
||||
default: 12_000,
|
||||
interval: 3_000,
|
||||
lazy: false
|
||||
]
|
||||
* enabled - turn FedSockets on or off with this flag. Can be toggled at runtime.
|
||||
* connection_duration - How long a FedSocket can sit idle before it's culled.
|
||||
* rejection_duration - After failing to make a FedSocket connection a host will be excluded
|
||||
from further connections for this amount of time
|
||||
* fed_socket_fetches - Use these parameters to pass options to the Cachex queue backing the FetchRegistry
|
||||
* fed_socket_rejections - Use these parameters to pass options to the Cachex queue backing the FedRegistry
|
||||
|
||||
Cachex options are
|
||||
* default: the minimum amount of time a fetch can wait before it times out.
|
||||
* interval: the interval between checks for timed out entries. This plus the default represent the maximum time allowed
|
||||
* lazy: leave at false for consistant and fast lookups, set to true for stricter timeout enforcement
|
||||
|
||||
"""
|
||||
require Logger
|
||||
|
||||
alias Pleroma.Web.FedSockets.FedRegistry
|
||||
alias Pleroma.Web.FedSockets.FedSocket
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
|
||||
@doc """
|
||||
returns a FedSocket for the given origin. Will reuse an existing one or create a new one.
|
||||
|
||||
address is expected to be a fully formed URL such as:
|
||||
"http://www.example.com" or "http://www.example.com:8080"
|
||||
|
||||
It can and usually does include additional path parameters,
|
||||
but these are ignored as the FedSockets are organized by host and port info alone.
|
||||
"""
|
||||
def get_or_create_fed_socket(address) do
|
||||
with {:cache, {:error, :missing}} <- {:cache, get_fed_socket(address)},
|
||||
{:connect, {:ok, _pid}} <- {:connect, FedSocket.connect_to_host(address)},
|
||||
{:cache, {:ok, fed_socket}} <- {:cache, get_fed_socket(address)} do
|
||||
Logger.debug("fedsocket created for - #{inspect(address)}")
|
||||
{:ok, fed_socket}
|
||||
else
|
||||
{:cache, {:ok, socket}} ->
|
||||
Logger.debug("fedsocket found in cache - #{inspect(address)}")
|
||||
{:ok, socket}
|
||||
|
||||
{:connect, {:error, _host}} ->
|
||||
Logger.debug("set host rejected for - #{inspect(address)}")
|
||||
FedRegistry.set_host_rejected(address)
|
||||
{:error, :rejected}
|
||||
|
||||
{_, {:error, :disabled}} ->
|
||||
{:error, :disabled}
|
||||
|
||||
{_, {:error, reason}} ->
|
||||
Logger.warn("get_or_create_fed_socket error - #{inspect(reason)}")
|
||||
{:error, reason}
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
returns a FedSocket for the given origin. Will not create a new FedSocket if one does not exist.
|
||||
|
||||
address is expected to be a fully formed URL such as:
|
||||
"http://www.example.com" or "http://www.example.com:8080"
|
||||
"""
|
||||
def get_fed_socket(address) do
|
||||
origin = SocketInfo.origin(address)
|
||||
|
||||
with {:config, true} <- {:config, Pleroma.Config.get([:fed_sockets, :enabled], false)},
|
||||
{:ok, socket} <- FedRegistry.get_fed_socket(origin) do
|
||||
{:ok, socket}
|
||||
else
|
||||
{:config, _} ->
|
||||
{:error, :disabled}
|
||||
|
||||
{:error, :rejected} ->
|
||||
Logger.debug("FedSocket previously rejected - #{inspect(origin)}")
|
||||
{:error, :rejected}
|
||||
|
||||
{:error, reason} ->
|
||||
{:error, reason}
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
Sends the supplied data via the publish protocol.
|
||||
It will not block waiting for a reply.
|
||||
Returns :ok but this is not an indication of a successful transfer.
|
||||
|
||||
the data is expected to be JSON encoded binary data.
|
||||
"""
|
||||
def publish(%SocketInfo{} = fed_socket, json) do
|
||||
FedSocket.publish(fed_socket, json)
|
||||
end
|
||||
|
||||
@doc """
|
||||
Sends the supplied data via the fetch protocol.
|
||||
It will block waiting for a reply or timeout.
|
||||
|
||||
Returns {:ok, object} where object is the requested object (or nil)
|
||||
{:error, :timeout} in the event the message was not responded to
|
||||
|
||||
the id is expected to be the URI of an ActivityPub object.
|
||||
"""
|
||||
def fetch(%SocketInfo{} = fed_socket, id) do
|
||||
FedSocket.fetch(fed_socket, id)
|
||||
end
|
||||
|
||||
@doc """
|
||||
Disconnect all and restart FedSockets.
|
||||
This is mainly used in development and testing but could be useful in production.
|
||||
"""
|
||||
def reset do
|
||||
FedRegistry
|
||||
|> Process.whereis()
|
||||
|> Process.exit(:testing)
|
||||
end
|
||||
|
||||
def uri_for_origin(origin),
|
||||
do: "ws://#{origin}/api/fedsocket/v1"
|
||||
end
|
||||
151
lib/pleroma/web/fed_sockets/fetch_registry.ex
Normal file
151
lib/pleroma/web/fed_sockets/fetch_registry.ex
Normal file
|
|
@ -0,0 +1,151 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.FetchRegistry do
|
||||
@moduledoc """
|
||||
The FetchRegistry acts as a broker for fetch requests and return values.
|
||||
This allows calling processes to block while waiting for a reply.
|
||||
It doesn't impose it's own process instead using `Cachex` to handle fetches in process, allowing
|
||||
multi threaded processes to avoid bottlenecking.
|
||||
|
||||
Normally outside modules will have no need to call or use the FetchRegistry themselves.
|
||||
|
||||
The `Cachex` parameters can be controlled from the config. Since exact timeout intervals
|
||||
aren't necessary the following settings are used by default:
|
||||
|
||||
config :pleroma, :fed_sockets,
|
||||
fed_socket_fetches: [
|
||||
default: 12_000,
|
||||
interval: 3_000,
|
||||
lazy: false
|
||||
]
|
||||
|
||||
"""
|
||||
|
||||
defmodule FetchRegistryData do
|
||||
defstruct uuid: nil,
|
||||
sent_json: nil,
|
||||
received_json: nil,
|
||||
sent_at: nil,
|
||||
received_at: nil
|
||||
end
|
||||
|
||||
alias Ecto.UUID
|
||||
|
||||
require Logger
|
||||
|
||||
@fetches :fed_socket_fetches
|
||||
|
||||
@doc """
|
||||
Registers a json request wth the FetchRegistry and returns the identifying UUID.
|
||||
"""
|
||||
def register_fetch(json) do
|
||||
%FetchRegistryData{uuid: uuid} =
|
||||
json
|
||||
|> new_registry_data
|
||||
|> save_registry_data
|
||||
|
||||
uuid
|
||||
end
|
||||
|
||||
@doc """
|
||||
Reports on the status of a Fetch given the identifying UUID.
|
||||
|
||||
Will return
|
||||
* {:ok, fetched_object} if a fetch has completed
|
||||
* {:error, :waiting} if a fetch is still pending
|
||||
* {:error, other_error} usually :missing to indicate a fetch that has timed out
|
||||
"""
|
||||
def check_fetch(uuid) do
|
||||
case get_registry_data(uuid) do
|
||||
{:ok, %FetchRegistryData{received_at: nil}} ->
|
||||
{:error, :waiting}
|
||||
|
||||
{:ok, %FetchRegistryData{} = reg_data} ->
|
||||
{:ok, reg_data}
|
||||
|
||||
e ->
|
||||
e
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
Retrieves the response to a fetch given the identifying UUID.
|
||||
The completed fetch will be deleted from the FetchRegistry
|
||||
|
||||
Will return
|
||||
* {:ok, fetched_object} if a fetch has completed
|
||||
* {:error, :waiting} if a fetch is still pending
|
||||
* {:error, other_error} usually :missing to indicate a fetch that has timed out
|
||||
"""
|
||||
def pop_fetch(uuid) do
|
||||
case check_fetch(uuid) do
|
||||
{:ok, %FetchRegistryData{received_json: received_json}} ->
|
||||
delete_registry_data(uuid)
|
||||
{:ok, received_json}
|
||||
|
||||
e ->
|
||||
e
|
||||
end
|
||||
end
|
||||
|
||||
@doc """
|
||||
This is called to register a fetch has returned.
|
||||
It expects the result data along with the UUID that was sent in the request
|
||||
|
||||
Will return the fetched object or :error
|
||||
"""
|
||||
def register_fetch_received(uuid, data) do
|
||||
case get_registry_data(uuid) do
|
||||
{:ok, %FetchRegistryData{received_at: nil} = reg_data} ->
|
||||
reg_data
|
||||
|> set_fetch_received(data)
|
||||
|> save_registry_data()
|
||||
|
||||
{:ok, %FetchRegistryData{} = reg_data} ->
|
||||
Logger.warn("tried to add fetched data twice - #{uuid}")
|
||||
reg_data
|
||||
|
||||
{:error, _} ->
|
||||
Logger.warn("Error adding fetch to registry - #{uuid}")
|
||||
:error
|
||||
end
|
||||
end
|
||||
|
||||
defp new_registry_data(json) do
|
||||
%FetchRegistryData{
|
||||
uuid: UUID.generate(),
|
||||
sent_json: json,
|
||||
sent_at: :erlang.monotonic_time(:millisecond)
|
||||
}
|
||||
end
|
||||
|
||||
defp get_registry_data(origin) do
|
||||
case Cachex.get(@fetches, origin) do
|
||||
{:ok, nil} ->
|
||||
{:error, :missing}
|
||||
|
||||
{:ok, reg_data} ->
|
||||
{:ok, reg_data}
|
||||
|
||||
_ ->
|
||||
{:error, :cache_error}
|
||||
end
|
||||
end
|
||||
|
||||
defp set_fetch_received(%FetchRegistryData{} = reg_data, data),
|
||||
do: %FetchRegistryData{
|
||||
reg_data
|
||||
| received_at: :erlang.monotonic_time(:millisecond),
|
||||
received_json: data
|
||||
}
|
||||
|
||||
defp save_registry_data(%FetchRegistryData{uuid: uuid} = reg_data) do
|
||||
{:ok, true} = Cachex.put(@fetches, uuid, reg_data)
|
||||
reg_data
|
||||
end
|
||||
|
||||
defp delete_registry_data(origin),
|
||||
do: {:ok, true} = Cachex.del(@fetches, origin)
|
||||
end
|
||||
88
lib/pleroma/web/fed_sockets/incoming_handler.ex
Normal file
88
lib/pleroma/web/fed_sockets/incoming_handler.ex
Normal file
|
|
@ -0,0 +1,88 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.IncomingHandler do
|
||||
require Logger
|
||||
|
||||
alias Pleroma.Web.FedSockets.FedRegistry
|
||||
alias Pleroma.Web.FedSockets.FedSocket
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
|
||||
import HTTPSignatures, only: [validate_conn: 1, split_signature: 1]
|
||||
|
||||
@behaviour :cowboy_websocket
|
||||
|
||||
def init(req, state) do
|
||||
shake = FedSocket.shake()
|
||||
|
||||
with true <- Pleroma.Config.get([:fed_sockets, :enabled]),
|
||||
sec_protocol <- :cowboy_req.header("sec-websocket-protocol", req, nil),
|
||||
headers = %{"(request-target)" => ^shake} <- :cowboy_req.headers(req),
|
||||
true <- validate_conn(%{req_headers: headers}),
|
||||
%{"keyId" => origin} <- split_signature(headers["signature"]) do
|
||||
req =
|
||||
if is_nil(sec_protocol) do
|
||||
req
|
||||
else
|
||||
:cowboy_req.set_resp_header("sec-websocket-protocol", sec_protocol, req)
|
||||
end
|
||||
|
||||
{:cowboy_websocket, req, %{origin: origin}, %{}}
|
||||
else
|
||||
_ ->
|
||||
{:ok, req, state}
|
||||
end
|
||||
end
|
||||
|
||||
def websocket_init(%{origin: origin}) do
|
||||
case FedRegistry.add_fed_socket(origin) do
|
||||
{:ok, socket_info} ->
|
||||
{:ok, socket_info}
|
||||
|
||||
e ->
|
||||
Logger.error("FedSocket websocket_init failed - #{inspect(e)}")
|
||||
{:error, inspect(e)}
|
||||
end
|
||||
end
|
||||
|
||||
# Use the ping to check if the connection should be expired
|
||||
def websocket_handle(:ping, socket_info) do
|
||||
if SocketInfo.expired?(socket_info) do
|
||||
{:stop, socket_info}
|
||||
else
|
||||
{:ok, socket_info, :hibernate}
|
||||
end
|
||||
end
|
||||
|
||||
def websocket_handle({:text, data}, socket_info) do
|
||||
socket_info = SocketInfo.touch(socket_info)
|
||||
|
||||
case FedSocket.receive_package(socket_info, data) do
|
||||
{:noreply, _} ->
|
||||
{:ok, socket_info}
|
||||
|
||||
{:reply, reply} ->
|
||||
{:reply, {:text, Jason.encode!(reply)}, socket_info}
|
||||
|
||||
{:error, reason} ->
|
||||
Logger.error("incoming error - receive_package: #{inspect(reason)}")
|
||||
{:ok, socket_info}
|
||||
end
|
||||
end
|
||||
|
||||
def websocket_info({:send, message}, socket_info) do
|
||||
socket_info = SocketInfo.touch(socket_info)
|
||||
|
||||
{:reply, {:text, message}, socket_info}
|
||||
end
|
||||
|
||||
def websocket_info(:close, state) do
|
||||
{:stop, state}
|
||||
end
|
||||
|
||||
def websocket_info(message, state) do
|
||||
Logger.debug("#{__MODULE__} unknown message #{inspect(message)}")
|
||||
{:ok, state}
|
||||
end
|
||||
end
|
||||
33
lib/pleroma/web/fed_sockets/ingester_worker.ex
Normal file
33
lib/pleroma/web/fed_sockets/ingester_worker.ex
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.IngesterWorker do
|
||||
use Pleroma.Workers.WorkerHelper, queue: "ingestion_queue"
|
||||
require Logger
|
||||
|
||||
alias Pleroma.Web.Federator
|
||||
|
||||
@impl Oban.Worker
|
||||
def perform(%Job{args: %{"op" => "ingest", "object" => ingestee}}) do
|
||||
try do
|
||||
ingestee
|
||||
|> Jason.decode!()
|
||||
|> do_ingestion()
|
||||
rescue
|
||||
e ->
|
||||
Logger.error("IngesterWorker error - #{inspect(e)}")
|
||||
e
|
||||
end
|
||||
end
|
||||
|
||||
defp do_ingestion(params) do
|
||||
case Federator.incoming_ap_doc(params) do
|
||||
{:error, reason} ->
|
||||
{:error, reason}
|
||||
|
||||
{:ok, object} ->
|
||||
{:ok, object}
|
||||
end
|
||||
end
|
||||
end
|
||||
146
lib/pleroma/web/fed_sockets/outgoing_handler.ex
Normal file
146
lib/pleroma/web/fed_sockets/outgoing_handler.ex
Normal file
|
|
@ -0,0 +1,146 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.OutgoingHandler do
|
||||
use GenServer
|
||||
|
||||
require Logger
|
||||
|
||||
alias Pleroma.Web.ActivityPub.InternalFetchActor
|
||||
alias Pleroma.Web.FedSockets
|
||||
alias Pleroma.Web.FedSockets.FedRegistry
|
||||
alias Pleroma.Web.FedSockets.FedSocket
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
|
||||
def start_link(uri) do
|
||||
GenServer.start_link(__MODULE__, %{uri: uri})
|
||||
end
|
||||
|
||||
def init(%{uri: uri}) do
|
||||
case initiate_connection(uri) do
|
||||
{:ok, ws_origin, conn_pid} ->
|
||||
FedRegistry.add_fed_socket(ws_origin, conn_pid)
|
||||
|
||||
{:error, reason} ->
|
||||
Logger.debug("Outgoing connection failed - #{inspect(reason)}")
|
||||
:ignore
|
||||
end
|
||||
end
|
||||
|
||||
def handle_info({:gun_ws, conn_pid, _ref, {:text, data}}, socket_info) do
|
||||
socket_info = SocketInfo.touch(socket_info)
|
||||
|
||||
case FedSocket.receive_package(socket_info, data) do
|
||||
{:noreply, _} ->
|
||||
{:noreply, socket_info}
|
||||
|
||||
{:reply, reply} ->
|
||||
:gun.ws_send(conn_pid, {:text, Jason.encode!(reply)})
|
||||
{:noreply, socket_info}
|
||||
|
||||
{:error, reason} ->
|
||||
Logger.error("incoming error - receive_package: #{inspect(reason)}")
|
||||
{:noreply, socket_info}
|
||||
end
|
||||
end
|
||||
|
||||
def handle_info(:close, state) do
|
||||
Logger.debug("Sending close frame !!!!!!!")
|
||||
{:close, state}
|
||||
end
|
||||
|
||||
def handle_info({:gun_down, _pid, _prot, :closed, _}, state) do
|
||||
{:stop, :normal, state}
|
||||
end
|
||||
|
||||
def handle_info({:send, data}, %{conn_pid: conn_pid} = socket_info) do
|
||||
socket_info = SocketInfo.touch(socket_info)
|
||||
:gun.ws_send(conn_pid, {:text, data})
|
||||
{:noreply, socket_info}
|
||||
end
|
||||
|
||||
def handle_info({:gun_ws, _, _, :pong}, state) do
|
||||
{:noreply, state, :hibernate}
|
||||
end
|
||||
|
||||
def handle_info(msg, state) do
|
||||
Logger.debug("#{__MODULE__} unhandled event #{inspect(msg)}")
|
||||
{:noreply, state}
|
||||
end
|
||||
|
||||
def terminate(reason, state) do
|
||||
Logger.debug(
|
||||
"#{__MODULE__} terminating outgoing connection for #{inspect(state)} for #{inspect(reason)}"
|
||||
)
|
||||
|
||||
{:ok, state}
|
||||
end
|
||||
|
||||
def initiate_connection(uri) do
|
||||
ws_uri =
|
||||
uri
|
||||
|> SocketInfo.origin()
|
||||
|> FedSockets.uri_for_origin()
|
||||
|
||||
%{host: host, port: port, path: path} = URI.parse(ws_uri)
|
||||
|
||||
with {:ok, conn_pid} <- :gun.open(to_charlist(host), port),
|
||||
{:ok, _} <- :gun.await_up(conn_pid),
|
||||
reference <- :gun.get(conn_pid, to_charlist(path)),
|
||||
{:response, :fin, 204, _} <- :gun.await(conn_pid, reference),
|
||||
headers <- build_headers(uri),
|
||||
ref <- :gun.ws_upgrade(conn_pid, to_charlist(path), headers, %{silence_pings: false}) do
|
||||
receive do
|
||||
{:gun_upgrade, ^conn_pid, ^ref, [<<"websocket">>], _} ->
|
||||
{:ok, ws_uri, conn_pid}
|
||||
after
|
||||
15_000 ->
|
||||
Logger.debug("Fedsocket timeout connecting to #{inspect(uri)}")
|
||||
{:error, :timeout}
|
||||
end
|
||||
else
|
||||
{:response, :nofin, 404, _} ->
|
||||
{:error, :fedsockets_not_supported}
|
||||
|
||||
e ->
|
||||
Logger.debug("Fedsocket error connecting to #{inspect(uri)}")
|
||||
{:error, e}
|
||||
end
|
||||
end
|
||||
|
||||
defp build_headers(uri) do
|
||||
host_for_sig = uri |> URI.parse() |> host_signature()
|
||||
|
||||
shake = FedSocket.shake()
|
||||
digest = "SHA-256=" <> (:crypto.hash(:sha256, shake) |> Base.encode64())
|
||||
date = Pleroma.Signature.signed_date()
|
||||
shake_size = byte_size(shake)
|
||||
|
||||
signature_opts = %{
|
||||
"(request-target)": shake,
|
||||
"content-length": to_charlist("#{shake_size}"),
|
||||
date: date,
|
||||
digest: digest,
|
||||
host: host_for_sig
|
||||
}
|
||||
|
||||
signature = Pleroma.Signature.sign(InternalFetchActor.get_actor(), signature_opts)
|
||||
|
||||
[
|
||||
{'signature', to_charlist(signature)},
|
||||
{'date', date},
|
||||
{'digest', to_charlist(digest)},
|
||||
{'content-length', to_charlist("#{shake_size}")},
|
||||
{to_charlist("(request-target)"), to_charlist(shake)}
|
||||
]
|
||||
end
|
||||
|
||||
defp host_signature(%{host: host, scheme: scheme, port: port}) do
|
||||
if port == URI.default_port(scheme) do
|
||||
host
|
||||
else
|
||||
"#{host}:#{port}"
|
||||
end
|
||||
end
|
||||
end
|
||||
52
lib/pleroma/web/fed_sockets/socket_info.ex
Normal file
52
lib/pleroma/web/fed_sockets/socket_info.ex
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.SocketInfo do
|
||||
defstruct origin: nil,
|
||||
pid: nil,
|
||||
conn_pid: nil,
|
||||
state: :default,
|
||||
connected_until: nil
|
||||
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
@default_connection_duration 15 * 60 * 1000
|
||||
|
||||
def build(uri, conn_pid \\ nil) do
|
||||
uri
|
||||
|> build_origin()
|
||||
|> build_pids(conn_pid)
|
||||
|> touch()
|
||||
end
|
||||
|
||||
def touch(%SocketInfo{} = socket_info),
|
||||
do: %{socket_info | connected_until: new_ttl()}
|
||||
|
||||
def connect(%SocketInfo{} = socket_info),
|
||||
do: %{socket_info | state: :connected}
|
||||
|
||||
def expired?(%{connected_until: connected_until}),
|
||||
do: connected_until < :erlang.monotonic_time(:millisecond)
|
||||
|
||||
def origin(uri),
|
||||
do: build_origin(uri).origin
|
||||
|
||||
defp build_pids(socket_info, conn_pid),
|
||||
do: struct(socket_info, pid: self(), conn_pid: conn_pid)
|
||||
|
||||
defp build_origin(uri) when is_binary(uri),
|
||||
do: uri |> URI.parse() |> build_origin
|
||||
|
||||
defp build_origin(%{host: host, port: nil, scheme: scheme}),
|
||||
do: build_origin(%{host: host, port: URI.default_port(scheme)})
|
||||
|
||||
defp build_origin(%{host: host, port: port}),
|
||||
do: %SocketInfo{origin: "#{host}:#{port}"}
|
||||
|
||||
defp new_ttl do
|
||||
connection_duration =
|
||||
Pleroma.Config.get([:fed_sockets, :connection_duration], @default_connection_duration)
|
||||
|
||||
:erlang.monotonic_time(:millisecond) + connection_duration
|
||||
end
|
||||
end
|
||||
59
lib/pleroma/web/fed_sockets/supervisor.ex
Normal file
59
lib/pleroma/web/fed_sockets/supervisor.ex
Normal file
|
|
@ -0,0 +1,59 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.Supervisor do
|
||||
use Supervisor
|
||||
import Cachex.Spec
|
||||
|
||||
def start_link(opts) do
|
||||
Supervisor.start_link(__MODULE__, opts, name: __MODULE__)
|
||||
end
|
||||
|
||||
def init(args) do
|
||||
children = [
|
||||
build_cache(:fed_socket_fetches, args),
|
||||
build_cache(:fed_socket_rejections, args),
|
||||
{Registry, keys: :unique, name: FedSockets.Registry, meta: [rejected: %{}]}
|
||||
]
|
||||
|
||||
opts = [strategy: :one_for_all, name: Pleroma.Web.Streamer.Supervisor]
|
||||
Supervisor.init(children, opts)
|
||||
end
|
||||
|
||||
defp build_cache(name, args) do
|
||||
opts = get_opts(name, args)
|
||||
|
||||
%{
|
||||
id: String.to_atom("#{name}_cache"),
|
||||
start: {Cachex, :start_link, [name, opts]},
|
||||
type: :worker
|
||||
}
|
||||
end
|
||||
|
||||
defp get_opts(cache_name, args)
|
||||
when cache_name in [:fed_socket_fetches, :fed_socket_rejections] do
|
||||
default = get_opts_or_config(args, cache_name, :default, 15_000)
|
||||
interval = get_opts_or_config(args, cache_name, :interval, 3_000)
|
||||
lazy = get_opts_or_config(args, cache_name, :lazy, false)
|
||||
|
||||
[expiration: expiration(default: default, interval: interval, lazy: lazy)]
|
||||
end
|
||||
|
||||
defp get_opts(name, args) do
|
||||
Keyword.get(args, name, [])
|
||||
end
|
||||
|
||||
defp get_opts_or_config(args, name, key, default) do
|
||||
args
|
||||
|> Keyword.get(name, [])
|
||||
|> Keyword.get(key)
|
||||
|> case do
|
||||
nil ->
|
||||
Pleroma.Config.get([:fed_sockets, name, key], default)
|
||||
|
||||
value ->
|
||||
value
|
||||
end
|
||||
end
|
||||
end
|
||||
2
mix.lock
2
mix.lock
|
|
@ -118,5 +118,5 @@
|
|||
"unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm", "1d1848c40487cdb0b30e8ed975e34e025860c02e419cb615d255849f3427439d"},
|
||||
"unsafe": {:hex, :unsafe, "1.0.1", "a27e1874f72ee49312e0a9ec2e0b27924214a05e3ddac90e91727bc76f8613d8", [:mix], [], "hexpm", "6c7729a2d214806450d29766abc2afaa7a2cbecf415be64f36a6691afebb50e5"},
|
||||
"web_push_encryption": {:hex, :web_push_encryption, "0.3.0", "598b5135e696fd1404dc8d0d7c0fa2c027244a4e5d5e5a98ba267f14fdeaabc8", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}], "hexpm", "f10bdd1afe527ede694749fb77a2f22f146a51b054c7fa541c9fd920fba7c875"},
|
||||
"websocket_client": {:git, "https://github.com/jeremyong/websocket_client.git", "9a6f65d05ebf2725d62fb19262b21f1805a59fbf", []},
|
||||
"websocket_client": {:git, "https://github.com/jeremyong/websocket_client.git", "9a6f65d05ebf2725d62fb19262b21f1805a59fbf", []}
|
||||
}
|
||||
|
|
|
|||
124
test/web/fed_sockets/fed_registry_test.exs
Normal file
124
test/web/fed_sockets/fed_registry_test.exs
Normal file
|
|
@ -0,0 +1,124 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.FedRegistryTest do
|
||||
use ExUnit.Case
|
||||
|
||||
alias Pleroma.Web.FedSockets
|
||||
alias Pleroma.Web.FedSockets.FedRegistry
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
|
||||
@good_domain "http://good.domain"
|
||||
@good_domain_origin "good.domain:80"
|
||||
|
||||
setup do
|
||||
start_supervised({Pleroma.Web.FedSockets.Supervisor, []})
|
||||
build_test_socket(@good_domain)
|
||||
Process.sleep(10)
|
||||
|
||||
:ok
|
||||
end
|
||||
|
||||
describe "add_fed_socket/1 without conflicting sockets" do
|
||||
test "can be added" do
|
||||
Process.sleep(10)
|
||||
assert {:ok, %SocketInfo{origin: origin}} = FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
assert origin == "good.domain:80"
|
||||
end
|
||||
|
||||
test "multiple origins can be added" do
|
||||
build_test_socket("http://anothergood.domain")
|
||||
Process.sleep(10)
|
||||
|
||||
assert {:ok, %SocketInfo{origin: origin_1}} =
|
||||
FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
|
||||
assert {:ok, %SocketInfo{origin: origin_2}} =
|
||||
FedRegistry.get_fed_socket("anothergood.domain:80")
|
||||
|
||||
assert origin_1 == "good.domain:80"
|
||||
assert origin_2 == "anothergood.domain:80"
|
||||
assert FedRegistry.list_all() |> Enum.count() == 2
|
||||
end
|
||||
end
|
||||
|
||||
describe "add_fed_socket/1 when duplicate sockets conflict" do
|
||||
setup do
|
||||
build_test_socket(@good_domain)
|
||||
build_test_socket(@good_domain)
|
||||
Process.sleep(10)
|
||||
:ok
|
||||
end
|
||||
|
||||
test "will be ignored" do
|
||||
assert {:ok, %SocketInfo{origin: origin, pid: pid_one}} =
|
||||
FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
|
||||
assert origin == "good.domain:80"
|
||||
|
||||
assert FedRegistry.list_all() |> Enum.count() == 1
|
||||
end
|
||||
|
||||
test "the newer process will be closed" do
|
||||
pid_two = build_test_socket(@good_domain)
|
||||
|
||||
assert {:ok, %SocketInfo{origin: origin, pid: pid_one}} =
|
||||
FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
|
||||
assert origin == "good.domain:80"
|
||||
Process.sleep(10)
|
||||
|
||||
refute Process.alive?(pid_two)
|
||||
|
||||
assert FedRegistry.list_all() |> Enum.count() == 1
|
||||
end
|
||||
end
|
||||
|
||||
describe "get_fed_socket/1" do
|
||||
test "returns missing for unknown hosts" do
|
||||
assert {:error, :missing} = FedRegistry.get_fed_socket("not_a_dmoain")
|
||||
end
|
||||
|
||||
test "returns rejected for hosts previously rejected" do
|
||||
"rejected.domain:80"
|
||||
|> FedSockets.uri_for_origin()
|
||||
|> FedRegistry.set_host_rejected()
|
||||
|
||||
assert {:error, :rejected} = FedRegistry.get_fed_socket("rejected.domain:80")
|
||||
end
|
||||
|
||||
test "can retrieve a previously added SocketInfo" do
|
||||
build_test_socket(@good_domain)
|
||||
Process.sleep(10)
|
||||
assert {:ok, %SocketInfo{origin: origin}} = FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
assert origin == "good.domain:80"
|
||||
end
|
||||
|
||||
test "removes references to SocketInfos when the process crashes" do
|
||||
assert {:ok, %SocketInfo{origin: origin, pid: pid}} =
|
||||
FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
|
||||
assert origin == "good.domain:80"
|
||||
|
||||
Process.exit(pid, :testing)
|
||||
Process.sleep(100)
|
||||
assert {:error, :missing} = FedRegistry.get_fed_socket(@good_domain_origin)
|
||||
end
|
||||
end
|
||||
|
||||
def build_test_socket(uri) do
|
||||
Kernel.spawn(fn -> fed_socket_almost(uri) end)
|
||||
end
|
||||
|
||||
def fed_socket_almost(origin) do
|
||||
FedRegistry.add_fed_socket(origin)
|
||||
|
||||
receive do
|
||||
:close ->
|
||||
:ok
|
||||
after
|
||||
5_000 -> :timeout
|
||||
end
|
||||
end
|
||||
end
|
||||
67
test/web/fed_sockets/fetch_registry_test.exs
Normal file
67
test/web/fed_sockets/fetch_registry_test.exs
Normal file
|
|
@ -0,0 +1,67 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.FetchRegistryTest do
|
||||
use ExUnit.Case
|
||||
|
||||
alias Pleroma.Web.FedSockets.FetchRegistry
|
||||
alias Pleroma.Web.FedSockets.FetchRegistry.FetchRegistryData
|
||||
|
||||
@json_message "hello"
|
||||
@json_reply "hello back"
|
||||
|
||||
setup do
|
||||
start_supervised(
|
||||
{Pleroma.Web.FedSockets.Supervisor,
|
||||
[
|
||||
ping_interval: 8,
|
||||
connection_duration: 15,
|
||||
rejection_duration: 5,
|
||||
fed_socket_fetches: [default: 10, interval: 10]
|
||||
]}
|
||||
)
|
||||
|
||||
:ok
|
||||
end
|
||||
|
||||
test "fetches can be stored" do
|
||||
uuid = FetchRegistry.register_fetch(@json_message)
|
||||
|
||||
assert {:error, :waiting} = FetchRegistry.check_fetch(uuid)
|
||||
end
|
||||
|
||||
test "fetches can return" do
|
||||
uuid = FetchRegistry.register_fetch(@json_message)
|
||||
task = Task.async(fn -> FetchRegistry.register_fetch_received(uuid, @json_reply) end)
|
||||
|
||||
assert {:error, :waiting} = FetchRegistry.check_fetch(uuid)
|
||||
Task.await(task)
|
||||
|
||||
assert {:ok, %FetchRegistryData{received_json: received_json}} =
|
||||
FetchRegistry.check_fetch(uuid)
|
||||
|
||||
assert received_json == @json_reply
|
||||
end
|
||||
|
||||
test "fetches are deleted once popped from stack" do
|
||||
uuid = FetchRegistry.register_fetch(@json_message)
|
||||
task = Task.async(fn -> FetchRegistry.register_fetch_received(uuid, @json_reply) end)
|
||||
Task.await(task)
|
||||
|
||||
assert {:ok, %FetchRegistryData{received_json: received_json}} =
|
||||
FetchRegistry.check_fetch(uuid)
|
||||
|
||||
assert received_json == @json_reply
|
||||
assert {:ok, @json_reply} = FetchRegistry.pop_fetch(uuid)
|
||||
|
||||
assert {:error, :missing} = FetchRegistry.check_fetch(uuid)
|
||||
end
|
||||
|
||||
test "fetches can time out" do
|
||||
uuid = FetchRegistry.register_fetch(@json_message)
|
||||
assert {:error, :waiting} = FetchRegistry.check_fetch(uuid)
|
||||
Process.sleep(500)
|
||||
assert {:error, :missing} = FetchRegistry.check_fetch(uuid)
|
||||
end
|
||||
end
|
||||
118
test/web/fed_sockets/socket_info_test.exs
Normal file
118
test/web/fed_sockets/socket_info_test.exs
Normal file
|
|
@ -0,0 +1,118 @@
|
|||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.Web.FedSockets.SocketInfoTest do
|
||||
use ExUnit.Case
|
||||
|
||||
alias Pleroma.Web.FedSockets
|
||||
alias Pleroma.Web.FedSockets.SocketInfo
|
||||
|
||||
describe "uri_for_origin" do
|
||||
test "provides the fed_socket URL given the origin information" do
|
||||
endpoint = "example.com:4000"
|
||||
assert FedSockets.uri_for_origin(endpoint) =~ "ws://"
|
||||
assert FedSockets.uri_for_origin(endpoint) =~ endpoint
|
||||
end
|
||||
end
|
||||
|
||||
describe "origin" do
|
||||
test "will provide the origin field given a url" do
|
||||
endpoint = "example.com:4000"
|
||||
assert SocketInfo.origin("ws://#{endpoint}") == endpoint
|
||||
assert SocketInfo.origin("http://#{endpoint}") == endpoint
|
||||
assert SocketInfo.origin("https://#{endpoint}") == endpoint
|
||||
end
|
||||
|
||||
test "will proide the origin field given a uri" do
|
||||
endpoint = "example.com:4000"
|
||||
uri = URI.parse("http://#{endpoint}")
|
||||
|
||||
assert SocketInfo.origin(uri) == endpoint
|
||||
end
|
||||
end
|
||||
|
||||
describe "touch" do
|
||||
test "will update the TTL" do
|
||||
endpoint = "example.com:4000"
|
||||
socket = SocketInfo.build("ws://#{endpoint}")
|
||||
Process.sleep(2)
|
||||
touched_socket = SocketInfo.touch(socket)
|
||||
|
||||
assert socket.connected_until < touched_socket.connected_until
|
||||
end
|
||||
end
|
||||
|
||||
describe "expired?" do
|
||||
setup do
|
||||
start_supervised(
|
||||
{Pleroma.Web.FedSockets.Supervisor,
|
||||
[
|
||||
ping_interval: 8,
|
||||
connection_duration: 5,
|
||||
rejection_duration: 5,
|
||||
fed_socket_rejections: [lazy: true]
|
||||
]}
|
||||
)
|
||||
|
||||
:ok
|
||||
end
|
||||
|
||||
test "tests if the TTL is exceeded" do
|
||||
endpoint = "example.com:4000"
|
||||
socket = SocketInfo.build("ws://#{endpoint}")
|
||||
refute SocketInfo.expired?(socket)
|
||||
Process.sleep(10)
|
||||
|
||||
assert SocketInfo.expired?(socket)
|
||||
end
|
||||
end
|
||||
|
||||
describe "creating outgoing connection records" do
|
||||
test "can be passed a string" do
|
||||
assert %{conn_pid: :pid, origin: _origin} = SocketInfo.build("example.com:4000", :pid)
|
||||
end
|
||||
|
||||
test "can be passed a URI" do
|
||||
uri = URI.parse("http://example.com:4000")
|
||||
assert %{conn_pid: :pid, origin: origin} = SocketInfo.build(uri, :pid)
|
||||
assert origin =~ "example.com:4000"
|
||||
end
|
||||
|
||||
test "will include the port number" do
|
||||
assert %{conn_pid: :pid, origin: origin} = SocketInfo.build("http://example.com:4000", :pid)
|
||||
|
||||
assert origin =~ ":4000"
|
||||
end
|
||||
|
||||
test "will provide the port if missing" do
|
||||
assert %{conn_pid: :pid, origin: "example.com:80"} =
|
||||
SocketInfo.build("http://example.com", :pid)
|
||||
|
||||
assert %{conn_pid: :pid, origin: "example.com:443"} =
|
||||
SocketInfo.build("https://example.com", :pid)
|
||||
end
|
||||
end
|
||||
|
||||
describe "creating incoming connection records" do
|
||||
test "can be passed a string" do
|
||||
assert %{pid: _, origin: _origin} = SocketInfo.build("example.com:4000")
|
||||
end
|
||||
|
||||
test "can be passed a URI" do
|
||||
uri = URI.parse("example.com:4000")
|
||||
assert %{pid: _, origin: _origin} = SocketInfo.build(uri)
|
||||
end
|
||||
|
||||
test "will include the port number" do
|
||||
assert %{pid: _, origin: origin} = SocketInfo.build("http://example.com:4000")
|
||||
|
||||
assert origin =~ ":4000"
|
||||
end
|
||||
|
||||
test "will provide the port if missing" do
|
||||
assert %{pid: _, origin: "example.com:80"} = SocketInfo.build("http://example.com")
|
||||
assert %{pid: _, origin: "example.com:443"} = SocketInfo.build("https://example.com")
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Reference in a new issue