distraction.party/test/pleroma/object_test.exs
Oneric 0ec62acb9d Always insert Dedupe upload filter
This actually was already intended before to eradict all future
path-traversal-style exploits and to fix issues with some
characters like akkoma#610 in 0b2ec0ccee. However, Dedupe and
AnonymizeFilename got mixed up. The latter only anonymises the name
in Content-Disposition headers GET parameters (with link_name),
_not_ the upload path.

Even without Dedupe, the upload path is prefixed by an UUID,
so it _should_ already be hard to guess for attackers. But now
we actually can be sure no path shenanigangs occur, uploads
reliably work and save some disk space.

While this makes the final path predictable, this prediction is
not exploitable. Insertion of a back-reference to the upload
itself requires pulling off a successfull preimage attack against
SHA-256, which is deemed infeasible for the foreseeable futures.

Dedupe was already included in the default list in config.exs
since 28cfb2c37a, but this will get overridde by whatever the
config generated by the "pleroma.instance gen" task chose.

Upload+delete tests running in parallel using Dedupe might be flaky, but
this was already true before and needs its own commit to fix eventually.
2024-03-18 22:33:10 -01:00

448 lines
14 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.ObjectTest do
use Pleroma.DataCase
use Oban.Testing, repo: Pleroma.Repo
import ExUnit.CaptureLog
import Pleroma.Factory
import Tesla.Mock
alias Pleroma.Activity
alias Pleroma.Hashtag
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.Tests.ObanHelpers
alias Pleroma.Web.CommonAPI
setup do
mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
:ok
end
# Only works for a single attachment but that's all we need here
defp get_attachment_filepath(note, uploads_dir) do
%{data: %{"attachment" => [%{"url" => [%{"href" => href}]}]}} = note
filename = href |> Path.basename()
"#{uploads_dir}/#{filename}"
end
test "returns an object by it's AP id" do
object = insert(:note)
found_object = Object.get_by_ap_id(object.data["id"])
assert object == found_object
end
describe "generic changeset" do
test "it ensures uniqueness of the id" do
object = insert(:note)
cs = Object.change(%Object{}, %{data: %{id: object.data["id"]}})
assert cs.valid?
{:error, _result} = Repo.insert(cs)
end
end
describe "deletion function" do
test "deletes an object" do
object = insert(:note)
found_object = Object.get_by_ap_id(object.data["id"])
assert object == found_object
Object.delete(found_object)
found_object = Object.get_by_ap_id(object.data["id"])
refute object == found_object
assert found_object.data["type"] == "Tombstone"
end
test "ensures cache is cleared for the object" do
object = insert(:note)
cached_object = Object.get_cached_by_ap_id(object.data["id"])
assert object == cached_object
Cachex.put(:web_resp_cache, URI.parse(object.data["id"]).path, "cofe")
Object.delete(cached_object)
{:ok, nil} = Cachex.get(:object_cache, "object:#{object.data["id"]}")
{:ok, nil} = Cachex.get(:web_resp_cache, URI.parse(object.data["id"]).path)
cached_object = Object.get_cached_by_ap_id(object.data["id"])
refute object == cached_object
assert cached_object.data["type"] == "Tombstone"
end
end
describe "delete attachments" do
setup do: clear_config([Pleroma.Upload])
setup do: clear_config([:instance, :cleanup_attachments])
test "Disabled via config" do
clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
clear_config([:instance, :cleanup_attachments], false)
file = %Plug.Upload{
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image.jpg"),
filename: "an_image.jpg"
}
user = insert(:user)
{:ok, %Object{} = attachment} =
Pleroma.Web.ActivityPub.ActivityPub.upload(file, actor: user.ap_id)
note = insert(:note, %{user: user, data: %{"attachment" => [attachment.data]}})
uploads_dir = Pleroma.Config.get!([Pleroma.Uploaders.Local, :uploads])
path = get_attachment_filepath(note, uploads_dir)
assert File.exists?("#{path}")
Object.delete(note)
ObanHelpers.perform(all_enqueued(worker: Pleroma.Workers.AttachmentsCleanupWorker))
assert Object.get_by_id(note.id).data["deleted"]
refute Object.get_by_id(attachment.id) == nil
assert File.exists?("#{path}")
end
test "in subdirectories" do
clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
clear_config([:instance, :cleanup_attachments], true)
file = %Plug.Upload{
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image.jpg"),
filename: "an_image.jpg"
}
user = insert(:user)
{:ok, %Object{} = attachment} =
Pleroma.Web.ActivityPub.ActivityPub.upload(file, actor: user.ap_id)
note = insert(:note, %{user: user, data: %{"attachment" => [attachment.data]}})
uploads_dir = Pleroma.Config.get!([Pleroma.Uploaders.Local, :uploads])
path = get_attachment_filepath(note, uploads_dir)
assert File.exists?("#{path}")
Object.delete(note)
ObanHelpers.perform(all_enqueued(worker: Pleroma.Workers.AttachmentsCleanupWorker))
assert Object.get_by_id(note.id).data["deleted"]
assert Object.get_by_id(attachment.id) == nil
refute File.exists?("#{path}")
end
test "with dedupe enabled" do
clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
clear_config([Pleroma.Upload, :filters], [Pleroma.Upload.Filter.Dedupe])
clear_config([:instance, :cleanup_attachments], true)
uploads_dir = Pleroma.Config.get!([Pleroma.Uploaders.Local, :uploads])
File.mkdir_p!(uploads_dir)
file = %Plug.Upload{
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image.jpg"),
filename: "an_image.jpg"
}
user = insert(:user)
{:ok, %Object{} = attachment} =
Pleroma.Web.ActivityPub.ActivityPub.upload(file, actor: user.ap_id)
note = insert(:note, %{user: user, data: %{"attachment" => [attachment.data]}})
path = get_attachment_filepath(note, uploads_dir)
assert File.exists?("#{path}")
Object.delete(note)
ObanHelpers.perform(all_enqueued(worker: Pleroma.Workers.AttachmentsCleanupWorker))
assert Object.get_by_id(note.id).data["deleted"]
assert Object.get_by_id(attachment.id) == nil
# what if another test runs concurrently using the same image file?
refute File.exists?("#{path}")
end
test "with objects that have legacy data.url attribute" do
clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
clear_config([:instance, :cleanup_attachments], true)
file = %Plug.Upload{
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image.jpg"),
filename: "an_image.jpg"
}
user = insert(:user)
{:ok, %Object{} = attachment} =
Pleroma.Web.ActivityPub.ActivityPub.upload(file, actor: user.ap_id)
{:ok, %Object{}} = Object.create(%{url: "https://google.com", actor: user.ap_id})
note = insert(:note, %{user: user, data: %{"attachment" => [attachment.data]}})
uploads_dir = Pleroma.Config.get!([Pleroma.Uploaders.Local, :uploads])
path = get_attachment_filepath(note, uploads_dir)
assert File.exists?("#{path}")
Object.delete(note)
ObanHelpers.perform(all_enqueued(worker: Pleroma.Workers.AttachmentsCleanupWorker))
assert Object.get_by_id(note.id).data["deleted"]
assert Object.get_by_id(attachment.id) == nil
refute File.exists?("#{path}")
end
test "With custom base_url" do
clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
clear_config([Pleroma.Upload, :base_url], "https://sub.domain.tld/dir/")
clear_config([:instance, :cleanup_attachments], true)
file = %Plug.Upload{
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image.jpg"),
filename: "an_image.jpg"
}
user = insert(:user)
{:ok, %Object{} = attachment} =
Pleroma.Web.ActivityPub.ActivityPub.upload(file, actor: user.ap_id)
note = insert(:note, %{user: user, data: %{"attachment" => [attachment.data]}})
uploads_dir = Pleroma.Config.get!([Pleroma.Uploaders.Local, :uploads])
path = get_attachment_filepath(note, uploads_dir)
assert File.exists?("#{path}")
Object.delete(note)
ObanHelpers.perform(all_enqueued(worker: Pleroma.Workers.AttachmentsCleanupWorker))
assert Object.get_by_id(note.id).data["deleted"]
assert Object.get_by_id(attachment.id) == nil
refute File.exists?("#{path}")
end
end
describe "normalizer" do
@url "http://mastodon.example.org/@admin/99541947525187367"
test "does not fetch unknown objects by default" do
assert nil == Object.normalize(@url)
end
test "fetches unknown objects when fetch is explicitly true" do
%Object{} = object = Object.normalize(@url, fetch: true)
assert object.data["url"] == @url
end
test "does not fetch unknown objects when fetch is false" do
assert is_nil(
Object.normalize(@url,
fetch: false
)
)
end
end
describe "get_by_id_and_maybe_refetch" do
setup do
mock(fn
%{method: :get, url: "https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d"} ->
%Tesla.Env{
status: 200,
body: File.read!("test/fixtures/tesla_mock/poll_original.json"),
headers: HttpRequestMock.activitypub_object_headers()
}
env ->
apply(HttpRequestMock, :request, [env])
end)
mock_modified = fn resp ->
mock(fn
%{method: :get, url: "https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d"} ->
resp
env ->
apply(HttpRequestMock, :request, [env])
end)
end
on_exit(fn -> mock(fn env -> apply(HttpRequestMock, :request, [env]) end) end)
[mock_modified: mock_modified]
end
test "refetches if the time since the last refetch is greater than the interval", %{
mock_modified: mock_modified
} do
%Object{} =
object =
Object.normalize("https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d",
fetch: true
)
Object.set_cache(object)
assert Enum.at(object.data["oneOf"], 0)["replies"]["totalItems"] == 4
assert Enum.at(object.data["oneOf"], 1)["replies"]["totalItems"] == 0
mock_modified.(%Tesla.Env{
status: 200,
body: File.read!("test/fixtures/tesla_mock/poll_modified.json"),
headers: HttpRequestMock.activitypub_object_headers()
})
updated_object = Object.get_by_id_and_maybe_refetch(object.id, interval: -1)
object_in_cache = Object.get_cached_by_ap_id(object.data["id"])
assert updated_object == object_in_cache
assert Enum.at(updated_object.data["oneOf"], 0)["replies"]["totalItems"] == 8
assert Enum.at(updated_object.data["oneOf"], 1)["replies"]["totalItems"] == 3
end
test "returns the old object if refetch fails", %{mock_modified: mock_modified} do
%Object{} =
object =
Object.normalize("https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d",
fetch: true
)
Object.set_cache(object)
assert Enum.at(object.data["oneOf"], 0)["replies"]["totalItems"] == 4
assert Enum.at(object.data["oneOf"], 1)["replies"]["totalItems"] == 0
assert capture_log(fn ->
mock_modified.(%Tesla.Env{status: 404, body: ""})
updated_object = Object.get_by_id_and_maybe_refetch(object.id, interval: -1)
object_in_cache = Object.get_cached_by_ap_id(object.data["id"])
assert updated_object == object_in_cache
assert Enum.at(updated_object.data["oneOf"], 0)["replies"]["totalItems"] == 4
assert Enum.at(updated_object.data["oneOf"], 1)["replies"]["totalItems"] == 0
end) =~
"[error] Couldn't refresh https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d"
end
test "does not refetch if the time since the last refetch is greater than the interval", %{
mock_modified: mock_modified
} do
%Object{} =
object =
Object.normalize("https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d",
fetch: true
)
Object.set_cache(object)
assert Enum.at(object.data["oneOf"], 0)["replies"]["totalItems"] == 4
assert Enum.at(object.data["oneOf"], 1)["replies"]["totalItems"] == 0
mock_modified.(%Tesla.Env{
status: 200,
body: File.read!("test/fixtures/tesla_mock/poll_modified.json"),
headers: HttpRequestMock.activitypub_object_headers()
})
updated_object = Object.get_by_id_and_maybe_refetch(object.id, interval: 100)
object_in_cache = Object.get_cached_by_ap_id(object.data["id"])
assert updated_object == object_in_cache
assert Enum.at(updated_object.data["oneOf"], 0)["replies"]["totalItems"] == 4
assert Enum.at(updated_object.data["oneOf"], 1)["replies"]["totalItems"] == 0
end
test "preserves internal fields on refetch", %{mock_modified: mock_modified} do
%Object{} =
object =
Object.normalize("https://patch.cx/objects/9a172665-2bc5-452d-8428-2361d4c33b1d",
fetch: true
)
Object.set_cache(object)
assert Enum.at(object.data["oneOf"], 0)["replies"]["totalItems"] == 4
assert Enum.at(object.data["oneOf"], 1)["replies"]["totalItems"] == 0
user = insert(:user)
activity = Activity.get_create_by_object_ap_id(object.data["id"])
{:ok, activity} = CommonAPI.favorite(user, activity.id)
object = Object.get_by_ap_id(activity.data["object"])
assert object.data["like_count"] == 1
mock_modified.(%Tesla.Env{
status: 200,
body: File.read!("test/fixtures/tesla_mock/poll_modified.json"),
headers: HttpRequestMock.activitypub_object_headers()
})
updated_object = Object.get_by_id_and_maybe_refetch(object.id, interval: -1)
object_in_cache = Object.get_cached_by_ap_id(object.data["id"])
assert updated_object == object_in_cache
assert Enum.at(updated_object.data["oneOf"], 0)["replies"]["totalItems"] == 8
assert Enum.at(updated_object.data["oneOf"], 1)["replies"]["totalItems"] == 3
assert updated_object.data["like_count"] == 1
end
end
describe ":hashtags association" do
test "Hashtag records are created with Object record and updated on its change" do
user = insert(:user)
{:ok, %{object: object}} =
CommonAPI.post(user, %{status: "some text #hashtag1 #hashtag2 ..."})
assert [%Hashtag{name: "hashtag1"}, %Hashtag{name: "hashtag2"}] =
Enum.sort_by(object.hashtags, & &1.name)
{:ok, object} = Object.update_data(object, %{"tag" => []})
assert [] = object.hashtags
object = Object.get_by_id(object.id) |> Repo.preload(:hashtags)
assert [] = object.hashtags
{:ok, object} = Object.update_data(object, %{"tag" => ["abc", "def"]})
assert [%Hashtag{name: "abc"}, %Hashtag{name: "def"}] =
Enum.sort_by(object.hashtags, & &1.name)
end
end
end