Merge branch '161-incoming-replies-depth-limit' into 'develop'

[#161] Limited replies depth on incoming federation (memory leaks fix)

Closes #161

See merge request pleroma/pleroma!1361
This commit is contained in:
rinpatch 2019-07-09 14:15:10 +00:00
commit 376a55c97f
11 changed files with 188 additions and 84 deletions

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@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
## [Unreleased] ## [Unreleased]
### Added ### Added
- MRF: Support for priming the mediaproxy cache (`Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`) - MRF: Support for priming the mediaproxy cache (`Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`)
Configuration: `federation_incoming_replies_max_depth` option
- Mastodon API: Support for the [`tagged` filter](https://github.com/tootsuite/mastodon/pull/9755) in [`GET /api/v1/accounts/:id/statuses`](https://docs.joinmastodon.org/api/rest/accounts/#get-api-v1-accounts-id-statuses) - Mastodon API: Support for the [`tagged` filter](https://github.com/tootsuite/mastodon/pull/9755) in [`GET /api/v1/accounts/:id/statuses`](https://docs.joinmastodon.org/api/rest/accounts/#get-api-v1-accounts-id-statuses)
- Admin API: Return users' tags when querying reports - Admin API: Return users' tags when querying reports
- Admin API: Return avatar and display name when querying users - Admin API: Return avatar and display name when querying users

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@ -218,6 +218,7 @@ config :pleroma, :instance,
}, },
registrations_open: true, registrations_open: true,
federating: true, federating: true,
federation_incoming_replies_max_depth: 100,
federation_reachability_timeout_days: 7, federation_reachability_timeout_days: 7,
federation_publisher_modules: [ federation_publisher_modules: [
Pleroma.Web.ActivityPub.Publisher, Pleroma.Web.ActivityPub.Publisher,

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@ -87,6 +87,7 @@ config :pleroma, Pleroma.Emails.Mailer,
* `invites_enabled`: Enable user invitations for admins (depends on `registrations_open: false`). * `invites_enabled`: Enable user invitations for admins (depends on `registrations_open: false`).
* `account_activation_required`: Require users to confirm their emails before signing in. * `account_activation_required`: Require users to confirm their emails before signing in.
* `federating`: Enable federation with other instances * `federating`: Enable federation with other instances
* `federation_incoming_replies_max_depth`: Max. depth of reply-to activities fetching on incoming federation, to prevent out-of-memory situations while fetching very long threads. If set to `nil`, threads of any depth will be fetched. Lower this value if you experience out-of-memory crashes.
* `federation_reachability_timeout_days`: Timeout (in days) of each external federation target being unreachable prior to pausing federating to it. * `federation_reachability_timeout_days`: Timeout (in days) of each external federation target being unreachable prior to pausing federating to it.
* `allow_relay`: Enable Pleromas Relay, which makes it possible to follow a whole instance * `allow_relay`: Enable Pleromas Relay, which makes it possible to follow a whole instance
* `rewrite_policy`: Message Rewrite Policy, either one or a list. Here are the ones available by default: * `rewrite_policy`: Message Rewrite Policy, either one or a list. Here are the ones available by default:

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@ -44,20 +44,20 @@ defmodule Pleroma.Object do
Repo.one(from(object in Object, where: fragment("(?)->>'id' = ?", object.data, ^ap_id))) Repo.one(from(object in Object, where: fragment("(?)->>'id' = ?", object.data, ^ap_id)))
end end
def normalize(_, fetch_remote \\ true) def normalize(_, fetch_remote \\ true, options \\ [])
# If we pass an Activity to Object.normalize(), we can try to use the preloaded object. # If we pass an Activity to Object.normalize(), we can try to use the preloaded object.
# Use this whenever possible, especially when walking graphs in an O(N) loop! # Use this whenever possible, especially when walking graphs in an O(N) loop!
def normalize(%Object{} = object, _), do: object def normalize(%Object{} = object, _, _), do: object
def normalize(%Activity{object: %Object{} = object}, _), do: object def normalize(%Activity{object: %Object{} = object}, _, _), do: object
# A hack for fake activities # A hack for fake activities
def normalize(%Activity{data: %{"object" => %{"fake" => true} = data}}, _) do def normalize(%Activity{data: %{"object" => %{"fake" => true} = data}}, _, _) do
%Object{id: "pleroma:fake_object_id", data: data} %Object{id: "pleroma:fake_object_id", data: data}
end end
# Catch and log Object.normalize() calls where the Activity's child object is not # Catch and log Object.normalize() calls where the Activity's child object is not
# preloaded. # preloaded.
def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}, fetch_remote) do def normalize(%Activity{data: %{"object" => %{"id" => ap_id}}}, fetch_remote, _) do
Logger.debug( Logger.debug(
"Object.normalize() called without preloaded object (#{ap_id}). Consider preloading the object!" "Object.normalize() called without preloaded object (#{ap_id}). Consider preloading the object!"
) )
@ -67,7 +67,7 @@ defmodule Pleroma.Object do
normalize(ap_id, fetch_remote) normalize(ap_id, fetch_remote)
end end
def normalize(%Activity{data: %{"object" => ap_id}}, fetch_remote) do def normalize(%Activity{data: %{"object" => ap_id}}, fetch_remote, _) do
Logger.debug( Logger.debug(
"Object.normalize() called without preloaded object (#{ap_id}). Consider preloading the object!" "Object.normalize() called without preloaded object (#{ap_id}). Consider preloading the object!"
) )
@ -78,10 +78,14 @@ defmodule Pleroma.Object do
end end
# Old way, try fetching the object through cache. # Old way, try fetching the object through cache.
def normalize(%{"id" => ap_id}, fetch_remote), do: normalize(ap_id, fetch_remote) def normalize(%{"id" => ap_id}, fetch_remote, _), do: normalize(ap_id, fetch_remote)
def normalize(ap_id, false) when is_binary(ap_id), do: get_cached_by_ap_id(ap_id) def normalize(ap_id, false, _) when is_binary(ap_id), do: get_cached_by_ap_id(ap_id)
def normalize(ap_id, true) when is_binary(ap_id), do: Fetcher.fetch_object_from_id!(ap_id)
def normalize(_, _), do: nil def normalize(ap_id, true, options) when is_binary(ap_id) do
Fetcher.fetch_object_from_id!(ap_id, options)
end
def normalize(_, _, _), do: nil
# Owned objects can only be mutated by their owner # Owned objects can only be mutated by their owner
def authorize_mutation(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}), def authorize_mutation(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}),

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@ -22,7 +22,7 @@ defmodule Pleroma.Object.Fetcher do
# TODO: # TODO:
# This will create a Create activity, which we need internally at the moment. # This will create a Create activity, which we need internally at the moment.
def fetch_object_from_id(id) do def fetch_object_from_id(id, options \\ []) do
if object = Object.get_cached_by_ap_id(id) do if object = Object.get_cached_by_ap_id(id) do
{:ok, object} {:ok, object}
else else
@ -38,7 +38,7 @@ defmodule Pleroma.Object.Fetcher do
"object" => data "object" => data
}, },
:ok <- Containment.contain_origin(id, params), :ok <- Containment.contain_origin(id, params),
{:ok, activity} <- Transmogrifier.handle_incoming(params), {:ok, activity} <- Transmogrifier.handle_incoming(params, options),
{:object, _data, %Object{} = object} <- {:object, _data, %Object{} = object} <-
{:object, data, Object.normalize(activity, false)} do {:object, data, Object.normalize(activity, false)} do
{:ok, object} {:ok, object}
@ -63,8 +63,8 @@ defmodule Pleroma.Object.Fetcher do
end end
end end
def fetch_object_from_id!(id) do def fetch_object_from_id!(id, options \\ []) do
with {:ok, object} <- fetch_object_from_id(id) do with {:ok, object} <- fetch_object_from_id(id, options) do
object object
else else
_e -> _e ->

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@ -14,6 +14,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.ActivityPub.Visibility alias Pleroma.Web.ActivityPub.Visibility
alias Pleroma.Web.Federator
import Ecto.Query import Ecto.Query
@ -22,20 +23,20 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
@doc """ @doc """
Modifies an incoming AP object (mastodon format) to our internal format. Modifies an incoming AP object (mastodon format) to our internal format.
""" """
def fix_object(object) do def fix_object(object, options \\ []) do
object object
|> fix_actor |> fix_actor
|> fix_url |> fix_url
|> fix_attachments |> fix_attachments
|> fix_context |> fix_context
|> fix_in_reply_to |> fix_in_reply_to(options)
|> fix_emoji |> fix_emoji
|> fix_tag |> fix_tag
|> fix_content_map |> fix_content_map
|> fix_likes |> fix_likes
|> fix_addressing |> fix_addressing
|> fix_summary |> fix_summary
|> fix_type |> fix_type(options)
end end
def fix_summary(%{"summary" => nil} = object) do def fix_summary(%{"summary" => nil} = object) do
@ -164,7 +165,9 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
object object
end end
def fix_in_reply_to(%{"inReplyTo" => in_reply_to} = object) def fix_in_reply_to(object, options \\ [])
def fix_in_reply_to(%{"inReplyTo" => in_reply_to} = object, options)
when not is_nil(in_reply_to) do when not is_nil(in_reply_to) do
in_reply_to_id = in_reply_to_id =
cond do cond do
@ -182,28 +185,34 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
"" ""
end end
case get_obj_helper(in_reply_to_id) do object = Map.put(object, "inReplyToAtomUri", in_reply_to_id)
{:ok, replied_object} ->
with %Activity{} = _activity <-
Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
object
|> Map.put("inReplyTo", replied_object.data["id"])
|> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
|> Map.put("conversation", replied_object.data["context"] || object["conversation"])
|> Map.put("context", replied_object.data["context"] || object["conversation"])
else
e ->
Logger.error("Couldn't fetch \"#{inspect(in_reply_to_id)}\", error: #{inspect(e)}")
object
end
e -> if Federator.allowed_incoming_reply_depth?(options[:depth]) do
Logger.error("Couldn't fetch \"#{inspect(in_reply_to_id)}\", error: #{inspect(e)}") case get_obj_helper(in_reply_to_id, options) do
object {:ok, replied_object} ->
with %Activity{} = _activity <-
Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
object
|> Map.put("inReplyTo", replied_object.data["id"])
|> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
|> Map.put("conversation", replied_object.data["context"] || object["conversation"])
|> Map.put("context", replied_object.data["context"] || object["conversation"])
else
e ->
Logger.error("Couldn't fetch \"#{inspect(in_reply_to_id)}\", error: #{inspect(e)}")
object
end
e ->
Logger.error("Couldn't fetch \"#{inspect(in_reply_to_id)}\", error: #{inspect(e)}")
object
end
else
object
end end
end end
def fix_in_reply_to(object), do: object def fix_in_reply_to(object, _options), do: object
def fix_context(object) do def fix_context(object) do
context = object["context"] || object["conversation"] || Utils.generate_context_id() context = object["context"] || object["conversation"] || Utils.generate_context_id()
@ -336,8 +345,13 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
def fix_content_map(object), do: object def fix_content_map(object), do: object
def fix_type(%{"inReplyTo" => reply_id} = object) when is_binary(reply_id) do def fix_type(object, options \\ [])
reply = Object.normalize(reply_id)
def fix_type(%{"inReplyTo" => reply_id} = object, options) when is_binary(reply_id) do
reply =
if Federator.allowed_incoming_reply_depth?(options[:depth]) do
Object.normalize(reply_id, true)
end
if reply && (reply.data["type"] == "Question" and object["name"]) do if reply && (reply.data["type"] == "Question" and object["name"]) do
Map.put(object, "type", "Answer") Map.put(object, "type", "Answer")
@ -346,7 +360,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
end end
def fix_type(object), do: object def fix_type(object, _), do: object
defp mastodon_follow_hack(%{"id" => id, "actor" => follower_id}, followed) do defp mastodon_follow_hack(%{"id" => id, "actor" => follower_id}, followed) do
with true <- id =~ "follows", with true <- id =~ "follows",
@ -374,9 +388,11 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
end end
def handle_incoming(data, options \\ [])
# Flag objects are placed ahead of the ID check because Mastodon 2.8 and earlier send them # Flag objects are placed ahead of the ID check because Mastodon 2.8 and earlier send them
# with nil ID. # with nil ID.
def handle_incoming(%{"type" => "Flag", "object" => objects, "actor" => actor} = data) do def handle_incoming(%{"type" => "Flag", "object" => objects, "actor" => actor} = data, _options) do
with context <- data["context"] || Utils.generate_context_id(), with context <- data["context"] || Utils.generate_context_id(),
content <- data["content"] || "", content <- data["content"] || "",
%User{} = actor <- User.get_cached_by_ap_id(actor), %User{} = actor <- User.get_cached_by_ap_id(actor),
@ -409,15 +425,19 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
# disallow objects with bogus IDs # disallow objects with bogus IDs
def handle_incoming(%{"id" => nil}), do: :error def handle_incoming(%{"id" => nil}, _options), do: :error
def handle_incoming(%{"id" => ""}), do: :error def handle_incoming(%{"id" => ""}, _options), do: :error
# length of https:// = 8, should validate better, but good enough for now. # length of https:// = 8, should validate better, but good enough for now.
def handle_incoming(%{"id" => id}) when not (is_binary(id) and length(id) > 8), do: :error def handle_incoming(%{"id" => id}, _options) when not (is_binary(id) and length(id) > 8),
do: :error
# TODO: validate those with a Ecto scheme # TODO: validate those with a Ecto scheme
# - tags # - tags
# - emoji # - emoji
def handle_incoming(%{"type" => "Create", "object" => %{"type" => objtype} = object} = data) def handle_incoming(
%{"type" => "Create", "object" => %{"type" => objtype} = object} = data,
options
)
when objtype in ["Article", "Note", "Video", "Page", "Question", "Answer"] do when objtype in ["Article", "Note", "Video", "Page", "Question", "Answer"] do
actor = Containment.get_actor(data) actor = Containment.get_actor(data)
@ -427,7 +447,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
with nil <- Activity.get_create_by_object_ap_id(object["id"]), with nil <- Activity.get_create_by_object_ap_id(object["id"]),
{:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(data["actor"]) do {:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(data["actor"]) do
object = fix_object(data["object"]) options = Keyword.put(options, :depth, (options[:depth] || 0) + 1)
object = fix_object(data["object"], options)
params = %{ params = %{
to: data["to"], to: data["to"],
@ -452,7 +473,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
def handle_incoming( def handle_incoming(
%{"type" => "Follow", "object" => followed, "actor" => follower, "id" => id} = data %{"type" => "Follow", "object" => followed, "actor" => follower, "id" => id} = data,
_options
) do ) do
with %User{local: true} = followed <- User.get_cached_by_ap_id(followed), with %User{local: true} = followed <- User.get_cached_by_ap_id(followed),
{:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower), {:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower),
@ -503,7 +525,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
def handle_incoming( def handle_incoming(
%{"type" => "Accept", "object" => follow_object, "actor" => _actor, "id" => _id} = data %{"type" => "Accept", "object" => follow_object, "actor" => _actor, "id" => _id} = data,
_options
) do ) do
with actor <- Containment.get_actor(data), with actor <- Containment.get_actor(data),
{:ok, %User{} = followed} <- User.get_or_fetch_by_ap_id(actor), {:ok, %User{} = followed} <- User.get_or_fetch_by_ap_id(actor),
@ -524,7 +547,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
def handle_incoming( def handle_incoming(
%{"type" => "Reject", "object" => follow_object, "actor" => _actor, "id" => _id} = data %{"type" => "Reject", "object" => follow_object, "actor" => _actor, "id" => _id} = data,
_options
) do ) do
with actor <- Containment.get_actor(data), with actor <- Containment.get_actor(data),
{:ok, %User{} = followed} <- User.get_or_fetch_by_ap_id(actor), {:ok, %User{} = followed} <- User.get_or_fetch_by_ap_id(actor),
@ -548,7 +572,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
def handle_incoming( def handle_incoming(
%{"type" => "Like", "object" => object_id, "actor" => _actor, "id" => id} = data %{"type" => "Like", "object" => object_id, "actor" => _actor, "id" => id} = data,
_options
) do ) do
with actor <- Containment.get_actor(data), with actor <- Containment.get_actor(data),
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
@ -561,7 +586,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
def handle_incoming( def handle_incoming(
%{"type" => "Announce", "object" => object_id, "actor" => _actor, "id" => id} = data %{"type" => "Announce", "object" => object_id, "actor" => _actor, "id" => id} = data,
_options
) do ) do
with actor <- Containment.get_actor(data), with actor <- Containment.get_actor(data),
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
@ -576,7 +602,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
def handle_incoming( def handle_incoming(
%{"type" => "Update", "object" => %{"type" => object_type} = object, "actor" => actor_id} = %{"type" => "Update", "object" => %{"type" => object_type} = object, "actor" => actor_id} =
data data,
_options
) )
when object_type in ["Person", "Application", "Service", "Organization"] do when object_type in ["Person", "Application", "Service", "Organization"] do
with %User{ap_id: ^actor_id} = actor <- User.get_cached_by_ap_id(object["id"]) do with %User{ap_id: ^actor_id} = actor <- User.get_cached_by_ap_id(object["id"]) do
@ -614,7 +641,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
# an error or a tombstone. This would allow us to verify that a deletion actually took # an error or a tombstone. This would allow us to verify that a deletion actually took
# place. # place.
def handle_incoming( def handle_incoming(
%{"type" => "Delete", "object" => object_id, "actor" => _actor, "id" => _id} = data %{"type" => "Delete", "object" => object_id, "actor" => _actor, "id" => _id} = data,
_options
) do ) do
object_id = Utils.get_ap_id(object_id) object_id = Utils.get_ap_id(object_id)
@ -635,7 +663,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
"object" => %{"type" => "Announce", "object" => object_id}, "object" => %{"type" => "Announce", "object" => object_id},
"actor" => _actor, "actor" => _actor,
"id" => id "id" => id
} = data } = data,
_options
) do ) do
with actor <- Containment.get_actor(data), with actor <- Containment.get_actor(data),
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
@ -653,7 +682,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
"object" => %{"type" => "Follow", "object" => followed}, "object" => %{"type" => "Follow", "object" => followed},
"actor" => follower, "actor" => follower,
"id" => id "id" => id
} = _data } = _data,
_options
) do ) do
with %User{local: true} = followed <- User.get_cached_by_ap_id(followed), with %User{local: true} = followed <- User.get_cached_by_ap_id(followed),
{:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower), {:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower),
@ -671,7 +701,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
"object" => %{"type" => "Block", "object" => blocked}, "object" => %{"type" => "Block", "object" => blocked},
"actor" => blocker, "actor" => blocker,
"id" => id "id" => id
} = _data } = _data,
_options
) do ) do
with true <- Pleroma.Config.get([:activitypub, :accept_blocks]), with true <- Pleroma.Config.get([:activitypub, :accept_blocks]),
%User{local: true} = blocked <- User.get_cached_by_ap_id(blocked), %User{local: true} = blocked <- User.get_cached_by_ap_id(blocked),
@ -685,7 +716,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
def handle_incoming( def handle_incoming(
%{"type" => "Block", "object" => blocked, "actor" => blocker, "id" => id} = _data %{"type" => "Block", "object" => blocked, "actor" => blocker, "id" => id} = _data,
_options
) do ) do
with true <- Pleroma.Config.get([:activitypub, :accept_blocks]), with true <- Pleroma.Config.get([:activitypub, :accept_blocks]),
%User{local: true} = blocked = User.get_cached_by_ap_id(blocked), %User{local: true} = blocked = User.get_cached_by_ap_id(blocked),
@ -705,7 +737,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
"object" => %{"type" => "Like", "object" => object_id}, "object" => %{"type" => "Like", "object" => object_id},
"actor" => _actor, "actor" => _actor,
"id" => id "id" => id
} = data } = data,
_options
) do ) do
with actor <- Containment.get_actor(data), with actor <- Containment.get_actor(data),
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
@ -717,10 +750,10 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
end end
end end
def handle_incoming(_), do: :error def handle_incoming(_, _), do: :error
def get_obj_helper(id) do def get_obj_helper(id, options \\ []) do
if object = Object.normalize(id), do: {:ok, object}, else: nil if object = Object.normalize(id, true, options), do: {:ok, object}, else: nil
end end
def set_reply_to_uri(%{"inReplyTo" => in_reply_to} = object) when is_binary(in_reply_to) do def set_reply_to_uri(%{"inReplyTo" => in_reply_to} = object) when is_binary(in_reply_to) do

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@ -22,6 +22,18 @@ defmodule Pleroma.Web.Federator do
refresh_subscriptions() refresh_subscriptions()
end end
@doc "Addresses [memory leaks on recursive replies fetching](https://git.pleroma.social/pleroma/pleroma/issues/161)"
# credo:disable-for-previous-line Credo.Check.Readability.MaxLineLength
def allowed_incoming_reply_depth?(depth) do
max_replies_depth = Pleroma.Config.get([:instance, :federation_incoming_replies_max_depth])
if max_replies_depth do
(depth || 1) <= max_replies_depth
else
true
end
end
# Client API # Client API
def incoming_doc(doc) do def incoming_doc(doc) do

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@ -10,6 +10,7 @@ defmodule Pleroma.Web.OStatus.NoteHandler do
alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.CommonAPI alias Pleroma.Web.CommonAPI
alias Pleroma.Web.Federator
alias Pleroma.Web.OStatus alias Pleroma.Web.OStatus
alias Pleroma.Web.XML alias Pleroma.Web.XML
@ -88,14 +89,15 @@ defmodule Pleroma.Web.OStatus.NoteHandler do
Map.put(note, "external_url", url) Map.put(note, "external_url", url)
end end
def fetch_replied_to_activity(entry, in_reply_to) do def fetch_replied_to_activity(entry, in_reply_to, options \\ []) do
with %Activity{} = activity <- Activity.get_create_by_object_ap_id(in_reply_to) do with %Activity{} = activity <- Activity.get_create_by_object_ap_id(in_reply_to) do
activity activity
else else
_e -> _e ->
with in_reply_to_href when not is_nil(in_reply_to_href) <- with true <- Federator.allowed_incoming_reply_depth?(options[:depth]),
in_reply_to_href when not is_nil(in_reply_to_href) <-
XML.string_from_xpath("//thr:in-reply-to[1]/@href", entry), XML.string_from_xpath("//thr:in-reply-to[1]/@href", entry),
{:ok, [activity | _]} <- OStatus.fetch_activity_from_url(in_reply_to_href) do {:ok, [activity | _]} <- OStatus.fetch_activity_from_url(in_reply_to_href, options) do
activity activity
else else
_e -> nil _e -> nil
@ -104,7 +106,7 @@ defmodule Pleroma.Web.OStatus.NoteHandler do
end end
# TODO: Clean this up a bit. # TODO: Clean this up a bit.
def handle_note(entry, doc \\ nil) do def handle_note(entry, doc \\ nil, options \\ []) do
with id <- XML.string_from_xpath("//id", entry), with id <- XML.string_from_xpath("//id", entry),
activity when is_nil(activity) <- Activity.get_create_by_object_ap_id_with_object(id), activity when is_nil(activity) <- Activity.get_create_by_object_ap_id_with_object(id),
[author] <- :xmerl_xpath.string('//author[1]', doc), [author] <- :xmerl_xpath.string('//author[1]', doc),
@ -112,7 +114,8 @@ defmodule Pleroma.Web.OStatus.NoteHandler do
content_html <- OStatus.get_content(entry), content_html <- OStatus.get_content(entry),
cw <- OStatus.get_cw(entry), cw <- OStatus.get_cw(entry),
in_reply_to <- XML.string_from_xpath("//thr:in-reply-to[1]/@ref", entry), in_reply_to <- XML.string_from_xpath("//thr:in-reply-to[1]/@ref", entry),
in_reply_to_activity <- fetch_replied_to_activity(entry, in_reply_to), options <- Keyword.put(options, :depth, (options[:depth] || 0) + 1),
in_reply_to_activity <- fetch_replied_to_activity(entry, in_reply_to, options),
in_reply_to_object <- in_reply_to_object <-
(in_reply_to_activity && Object.normalize(in_reply_to_activity)) || nil, (in_reply_to_activity && Object.normalize(in_reply_to_activity)) || nil,
in_reply_to <- (in_reply_to_object && in_reply_to_object.data["id"]) || in_reply_to, in_reply_to <- (in_reply_to_object && in_reply_to_object.data["id"]) || in_reply_to,

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@ -54,7 +54,7 @@ defmodule Pleroma.Web.OStatus do
"#{Web.base_url()}/ostatus_subscribe?acct={uri}" "#{Web.base_url()}/ostatus_subscribe?acct={uri}"
end end
def handle_incoming(xml_string) do def handle_incoming(xml_string, options \\ []) do
with doc when doc != :error <- parse_document(xml_string) do with doc when doc != :error <- parse_document(xml_string) do
with {:ok, actor_user} <- find_make_or_update_user(doc), with {:ok, actor_user} <- find_make_or_update_user(doc),
do: Pleroma.Instances.set_reachable(actor_user.ap_id) do: Pleroma.Instances.set_reachable(actor_user.ap_id)
@ -91,10 +91,12 @@ defmodule Pleroma.Web.OStatus do
_ -> _ ->
case object_type do case object_type do
'http://activitystrea.ms/schema/1.0/note' -> 'http://activitystrea.ms/schema/1.0/note' ->
with {:ok, activity} <- NoteHandler.handle_note(entry, doc), do: activity with {:ok, activity} <- NoteHandler.handle_note(entry, doc, options),
do: activity
'http://activitystrea.ms/schema/1.0/comment' -> 'http://activitystrea.ms/schema/1.0/comment' ->
with {:ok, activity} <- NoteHandler.handle_note(entry, doc), do: activity with {:ok, activity} <- NoteHandler.handle_note(entry, doc, options),
do: activity
_ -> _ ->
Logger.error("Couldn't parse incoming document") Logger.error("Couldn't parse incoming document")
@ -359,7 +361,7 @@ defmodule Pleroma.Web.OStatus do
end end
end end
def fetch_activity_from_atom_url(url) do def fetch_activity_from_atom_url(url, options \\ []) do
with true <- String.starts_with?(url, "http"), with true <- String.starts_with?(url, "http"),
{:ok, %{body: body, status: code}} when code in 200..299 <- {:ok, %{body: body, status: code}} when code in 200..299 <-
HTTP.get( HTTP.get(
@ -367,7 +369,7 @@ defmodule Pleroma.Web.OStatus do
[{:Accept, "application/atom+xml"}] [{:Accept, "application/atom+xml"}]
) do ) do
Logger.debug("Got document from #{url}, handling...") Logger.debug("Got document from #{url}, handling...")
handle_incoming(body) handle_incoming(body, options)
else else
e -> e ->
Logger.debug("Couldn't get #{url}: #{inspect(e)}") Logger.debug("Couldn't get #{url}: #{inspect(e)}")
@ -375,13 +377,13 @@ defmodule Pleroma.Web.OStatus do
end end
end end
def fetch_activity_from_html_url(url) do def fetch_activity_from_html_url(url, options \\ []) do
Logger.debug("Trying to fetch #{url}") Logger.debug("Trying to fetch #{url}")
with true <- String.starts_with?(url, "http"), with true <- String.starts_with?(url, "http"),
{:ok, %{body: body}} <- HTTP.get(url, []), {:ok, %{body: body}} <- HTTP.get(url, []),
{:ok, atom_url} <- get_atom_url(body) do {:ok, atom_url} <- get_atom_url(body) do
fetch_activity_from_atom_url(atom_url) fetch_activity_from_atom_url(atom_url, options)
else else
e -> e ->
Logger.debug("Couldn't get #{url}: #{inspect(e)}") Logger.debug("Couldn't get #{url}: #{inspect(e)}")
@ -389,11 +391,11 @@ defmodule Pleroma.Web.OStatus do
end end
end end
def fetch_activity_from_url(url) do def fetch_activity_from_url(url, options \\ []) do
with {:ok, [_ | _] = activities} <- fetch_activity_from_atom_url(url) do with {:ok, [_ | _] = activities} <- fetch_activity_from_atom_url(url, options) do
{:ok, activities} {:ok, activities}
else else
_e -> fetch_activity_from_html_url(url) _e -> fetch_activity_from_html_url(url, options)
end end
rescue rescue
e -> e ->

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@ -11,12 +11,13 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
alias Pleroma.User alias Pleroma.User
alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Transmogrifier alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.OStatus alias Pleroma.Web.OStatus
alias Pleroma.Web.Websub.WebsubClientSubscription alias Pleroma.Web.Websub.WebsubClientSubscription
import Mock
import Pleroma.Factory import Pleroma.Factory
import ExUnit.CaptureLog import ExUnit.CaptureLog
alias Pleroma.Web.CommonAPI
setup_all do setup_all do
Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end) Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
@ -46,12 +47,10 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
data["object"] data["object"]
|> Map.put("inReplyTo", "https://shitposter.club/notice/2827873") |> Map.put("inReplyTo", "https://shitposter.club/notice/2827873")
data = data = Map.put(data, "object", object)
data
|> Map.put("object", object)
{:ok, returned_activity} = Transmogrifier.handle_incoming(data) {:ok, returned_activity} = Transmogrifier.handle_incoming(data)
returned_object = Object.normalize(returned_activity.data["object"])
returned_object = Object.normalize(returned_activity.data["object"], false)
assert activity = assert activity =
Activity.get_create_by_object_ap_id( Activity.get_create_by_object_ap_id(
@ -61,6 +60,32 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
assert returned_object.data["inReplyToAtomUri"] == "https://shitposter.club/notice/2827873" assert returned_object.data["inReplyToAtomUri"] == "https://shitposter.club/notice/2827873"
end end
test "it does not fetch replied-to activities beyond max_replies_depth" do
data =
File.read!("test/fixtures/mastodon-post-activity.json")
|> Poison.decode!()
object =
data["object"]
|> Map.put("inReplyTo", "https://shitposter.club/notice/2827873")
data = Map.put(data, "object", object)
with_mock Pleroma.Web.Federator,
allowed_incoming_reply_depth?: fn _ -> false end do
{:ok, returned_activity} = Transmogrifier.handle_incoming(data)
returned_object = Object.normalize(returned_activity.data["object"], false)
refute Activity.get_create_by_object_ap_id(
"tag:shitposter.club,2017-05-05:noticeId=2827873:objectType=comment"
)
assert returned_object.data["inReplyToAtomUri"] ==
"https://shitposter.club/notice/2827873"
end
end
test "it does not crash if the object in inReplyTo can't be fetched" do test "it does not crash if the object in inReplyTo can't be fetched" do
data = data =
File.read!("test/fixtures/mastodon-post-activity.json") File.read!("test/fixtures/mastodon-post-activity.json")

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@ -11,8 +11,10 @@ defmodule Pleroma.Web.OStatusTest do
alias Pleroma.User alias Pleroma.User
alias Pleroma.Web.OStatus alias Pleroma.Web.OStatus
alias Pleroma.Web.XML alias Pleroma.Web.XML
import Pleroma.Factory
import ExUnit.CaptureLog import ExUnit.CaptureLog
import Mock
import Pleroma.Factory
setup_all do setup_all do
Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end) Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
@ -266,10 +268,13 @@ defmodule Pleroma.Web.OStatusTest do
assert favorited_activity.local assert favorited_activity.local
end end
test "handle incoming replies" do test_with_mock "handle incoming replies, fetching replied-to activities if we don't have them",
OStatus,
[:passthrough],
[] do
incoming = File.read!("test/fixtures/incoming_note_activity_answer.xml") incoming = File.read!("test/fixtures/incoming_note_activity_answer.xml")
{:ok, [activity]} = OStatus.handle_incoming(incoming) {:ok, [activity]} = OStatus.handle_incoming(incoming)
object = Object.normalize(activity.data["object"]) object = Object.normalize(activity.data["object"], false)
assert activity.data["type"] == "Create" assert activity.data["type"] == "Create"
assert object.data["type"] == "Note" assert object.data["type"] == "Note"
@ -282,6 +287,23 @@ defmodule Pleroma.Web.OStatusTest do
assert object.data["id"] == "tag:gs.example.org:4040,2017-04-25:noticeId=55:objectType=note" assert object.data["id"] == "tag:gs.example.org:4040,2017-04-25:noticeId=55:objectType=note"
assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"] assert "https://www.w3.org/ns/activitystreams#Public" in activity.data["to"]
assert called(OStatus.fetch_activity_from_url(object.data["inReplyTo"], :_))
end
test_with_mock "handle incoming replies, not fetching replied-to activities beyond max_replies_depth",
OStatus,
[:passthrough],
[] do
incoming = File.read!("test/fixtures/incoming_note_activity_answer.xml")
with_mock Pleroma.Web.Federator,
allowed_incoming_reply_depth?: fn _ -> false end do
{:ok, [activity]} = OStatus.handle_incoming(incoming)
object = Object.normalize(activity.data["object"], false)
refute called(OStatus.fetch_activity_from_url(object.data["inReplyTo"], :_))
end
end end
test "handle incoming follows" do test "handle incoming follows" do