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object: factor out fetching functions into Pleroma.Object.Fetcher module

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This commit is contained in:
William Pitcock 2018-12-01 22:53:10 +00:00
parent e8caecb5c7
commit f85949cc69
7 changed files with 81 additions and 134 deletions
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69
lib/pleroma/object/fetcher.ex Normal file
View file

@ -0,0 +1,69 @@
defmodule Pleroma.Object.Fetcher do
alias Pleroma.{Object, Repo}
alias Pleroma.Object.Containment
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.OStatus
require Logger
@httpoison Application.get_env(:pleroma, :httpoison)
# TODO:
# This will create a Create activity, which we need internally at the moment.
def fetch_object_from_id(id) do
if object = Object.get_cached_by_ap_id(id) do
{:ok, object}
else
Logger.info("Fetching #{id} via AP")
with {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
nil <- Object.normalize(data),
params <- %{
"type" => "Create",
"to" => data["to"],
"cc" => data["cc"],
"actor" => data["actor"] || data["attributedTo"],
"object" => data
},
:ok <- Containment.contain_origin(id, params),
{:ok, activity} <- Transmogrifier.handle_incoming(params) do
{:ok, Object.normalize(activity.data["object"])}
else
{:error, {:reject, nil}} ->
{:reject, nil}
object = %Object{} ->
{:ok, object}
_e ->
Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
case OStatus.fetch_activity_from_url(id) do
{:ok, [activity | _]} -> {:ok, Object.normalize(activity.data["object"])}
e -> e
end
end
end
end
def fetch_and_contain_remote_object_from_id(id) do
Logger.info("Fetching #{id} via AP")
with true <- String.starts_with?(id, "http"),
{:ok, %{body: body, status_code: code}} when code in 200..299 <-
@httpoison.get(
id,
[Accept: "application/activity+json"],
follow_redirect: true,
timeout: 10000,
recv_timeout: 20000
),
{:ok, data} <- Jason.decode(body),
:ok <- Containment.contain_origin_from_id(id, data) do
{:ok, data}
else
e ->
{:error, e}
end
end
end

63
lib/pleroma/web/activity_pub/activity_pub.ex
View file

@ -1,6 +1,6 @@
defmodule Pleroma.Web.ActivityPub.ActivityPub do
alias Pleroma.{Activity, Repo, Object, Upload, User, Notification}
alias Pleroma.Object.Containment
alias Pleroma.Object.Fetcher
alias Pleroma.Web.ActivityPub.{Transmogrifier, MRF}
alias Pleroma.Web.WebFinger
alias Pleroma.Web.Federator
@ -629,7 +629,7 @@ def user_data_from_user_object(data) do
end
def fetch_and_prepare_user_from_ap_id(ap_id) do
with {:ok, data} <- fetch_and_contain_remote_object_from_id(ap_id) do
with {:ok, data} <- Fetcher.fetch_and_contain_remote_object_from_id(ap_id) do
user_data_from_user_object(data)
else
e -> Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
@ -723,65 +723,6 @@ def publish_one(%{inbox: inbox, json: json, actor: actor, id: id}) do
)
end
# TODO:
# This will create a Create activity, which we need internally at the moment.
def fetch_object_from_id(id) do
if object = Object.get_cached_by_ap_id(id) do
{:ok, object}
else
Logger.info("Fetching #{id} via AP")
with {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
nil <- Object.normalize(data),
params <- %{
"type" => "Create",
"to" => data["to"],
"cc" => data["cc"],
"actor" => data["actor"] || data["attributedTo"],
"object" => data
},
:ok <- Containment.contain_origin(id, params),
{:ok, activity} <- Transmogrifier.handle_incoming(params) do
{:ok, Object.normalize(activity.data["object"])}
else
{:error, {:reject, nil}} ->
{:reject, nil}
object = %Object{} ->
{:ok, object}
_e ->
Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
case OStatus.fetch_activity_from_url(id) do
{:ok, [activity | _]} -> {:ok, Object.normalize(activity.data["object"])}
e -> e
end
end
end
end
def fetch_and_contain_remote_object_from_id(id) do
Logger.info("Fetching #{id} via AP")
with true <- String.starts_with?(id, "http"),
{:ok, %{body: body, status_code: code}} when code in 200..299 <-
@httpoison.get(
id,
[Accept: "application/activity+json"],
follow_redirect: true,
timeout: 10000,
recv_timeout: 20000
),
{:ok, data} <- Jason.decode(body),
:ok <- Containment.contain_origin_from_id(id, data) do
{:ok, data}
else
e ->
{:error, e}
end
end
def is_public?(activity) do
"https://www.w3.org/ns/activitystreams#Public" in (activity.data["to"] ++
(activity.data["cc"] || []))

3
lib/pleroma/web/activity_pub/activity_pub_controller.ex
View file

@ -1,6 +1,7 @@
defmodule Pleroma.Web.ActivityPub.ActivityPubController do
use Pleroma.Web, :controller
alias Pleroma.{User, Object}
alias Pleroma.Object.Fetcher
alias Pleroma.Web.ActivityPub.{ObjectView, UserView}
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Relay
@ -122,7 +123,7 @@ def inbox(conn, %{"type" => "Create"} = params) do
"Signature missing or not from author, relayed Create message, fetching object from source"
)
ActivityPub.fetch_object_from_id(params["object"]["id"])
Fetcher.fetch_object_from_id(params["object"]["id"])
json(conn, "ok")
end

6
lib/pleroma/web/activity_pub/transmogrifier.ex
View file

@ -4,7 +4,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
"""
alias Pleroma.User
alias Pleroma.Object
alias Pleroma.Object.Containment
alias Pleroma.Object.{Containment, Fetcher}
alias Pleroma.Activity
alias Pleroma.Repo
alias Pleroma.Web.ActivityPub.ActivityPub
@ -529,8 +529,8 @@ def handle_incoming(
def handle_incoming(_), do: :error
def fetch_obj_helper(id) when is_bitstring(id), do: ActivityPub.fetch_object_from_id(id)
def fetch_obj_helper(obj) when is_map(obj), do: ActivityPub.fetch_object_from_id(obj["id"])
def fetch_obj_helper(id) when is_bitstring(id), do: Fetcher.fetch_object_from_id(id)
def fetch_obj_helper(obj) when is_map(obj), do: Fetcher.fetch_object_from_id(obj["id"])
def get_obj_helper(id) do
if object = Object.normalize(id), do: {:ok, object}, else: nil

7
lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
View file

@ -1,6 +1,7 @@
defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
use Pleroma.Web, :controller
alias Pleroma.{Repo, Object, Activity, User, Notification, Stats}
alias Pleroma.Object.Fetcher
alias Pleroma.Web
alias Pleroma.Web.MastodonAPI.{StatusView, AccountView, MastodonView, ListView, FilterView}
alias Pleroma.Web.ActivityPub.ActivityPub
@ -658,7 +659,7 @@ def unblock_domain(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) d
def status_search(query) do
fetched =
if Regex.match?(~r/https?:/, query) do
with {:ok, object} <- ActivityPub.fetch_object_from_id(query) do
with {:ok, object} <- Fetcher.fetch_object_from_id(query) do
[Activity.get_create_activity_by_object_ap_id(object.data["id"])]
else
_e -> []
@ -986,7 +987,9 @@ def login(conn, %{"code" => code}) do
def login(conn, _) do
with {:ok, app} <- get_or_make_app() do
path =
o_auth_path(conn, :authorize,
o_auth_path(
conn,
:authorize,
response_type: "code",
client_id: app.client_id,
redirect_uri: ".",

55
test/web/activity_pub/activity_pub_test.exs
View file

@ -372,43 +372,6 @@ test "fetches the latest Follow activity" do
end
end
describe "fetching an object" do
test "it fetches an object" do
{:ok, object} =
ActivityPub.fetch_object_from_id("http://mastodon.example.org/@admin/99541947525187367")
assert activity = Activity.get_create_activity_by_object_ap_id(object.data["id"])
assert activity.data["id"]
{:ok, object_again} =
ActivityPub.fetch_object_from_id("http://mastodon.example.org/@admin/99541947525187367")
assert [attachment] = object.data["attachment"]
assert is_list(attachment["url"])
assert object == object_again
end
test "it works with objects only available via Ostatus" do
{:ok, object} = ActivityPub.fetch_object_from_id("https://shitposter.club/notice/2827873")
assert activity = Activity.get_create_activity_by_object_ap_id(object.data["id"])
assert activity.data["id"]
{:ok, object_again} =
ActivityPub.fetch_object_from_id("https://shitposter.club/notice/2827873")
assert object == object_again
end
test "it correctly stitches up conversations between ostatus and ap" do
last = "https://mstdn.io/users/mayuutann/statuses/99568293732299394"
{:ok, object} = ActivityPub.fetch_object_from_id(last)
object = Object.get_by_ap_id(object.data["inReplyTo"])
assert object
end
end
describe "following / unfollowing" do
test "creates a follow activity" do
follower = insert(:user)
@ -530,15 +493,6 @@ test "it filters broken threads" do
end
end
test "it can fetch plume articles" do
{:ok, object} =
ActivityPub.fetch_object_from_id(
"https://baptiste.gelez.xyz/~/PlumeDevelopment/this-month-in-plume-june-2018/"
)
assert object
end
describe "update" do
test "it creates an update activity with the new user data" do
user = insert(:user)
@ -560,15 +514,6 @@ test "it creates an update activity with the new user data" do
end
end
test "it can fetch peertube videos" do
{:ok, object} =
ActivityPub.fetch_object_from_id(
"https://peertube.moe/videos/watch/df5f464b-be8d-46fb-ad81-2d4c2d1630e3"
)
assert object
end
def data_uri do
File.read!("test/fixtures/avatar_data_uri")
end

12
test/web/activity_pub/transmogrifier_test.exs
View file

@ -894,10 +894,6 @@ test "it fixes the actor URL property to be a proper URI" do
end
describe "actor origin containment" do
test "it rejects objects with a bogus origin" do
{:error, _} = ActivityPub.fetch_object_from_id("https://info.pleroma.site/activity.json")
end
test "it rejects activities which reference objects with bogus origins" do
data = %{
"@context" => "https://www.w3.org/ns/activitystreams",
@ -911,10 +907,6 @@ test "it rejects activities which reference objects with bogus origins" do
:error = Transmogrifier.handle_incoming(data)
end
test "it rejects objects when attributedTo is wrong (variant 1)" do
{:error, _} = ActivityPub.fetch_object_from_id("https://info.pleroma.site/activity2.json")
end
test "it rejects activities which reference objects that have an incorrect attribution (variant 1)" do
data = %{
"@context" => "https://www.w3.org/ns/activitystreams",
@ -928,10 +920,6 @@ test "it rejects activities which reference objects that have an incorrect attri
:error = Transmogrifier.handle_incoming(data)
end
test "it rejects objects when attributedTo is wrong (variant 2)" do
{:error, _} = ActivityPub.fetch_object_from_id("https://info.pleroma.site/activity3.json")
end
test "it rejects activities which reference objects that have an incorrect attribution (variant 2)" do
data = %{
"@context" => "https://www.w3.org/ns/activitystreams",