Merge branch 'hotfix/leaking-lists' into 'develop'

Mastodon API: Fix lists leaking private posts

See merge request pleroma/pleroma!1222
This commit is contained in:
lambda 2019-05-31 13:26:48 +00:00
commit 2993361075
5 changed files with 88 additions and 17 deletions

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@ -119,6 +119,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
## Removed
- Configuration: `config :pleroma, :fe` in favor of the more flexible `config :pleroma, :frontend_configurations`
## [0.9.99999] - 2019-05-31
### Security
- Mastodon API: Fix lists leaking private posts
## [0.9.9999] - 2019-04-05
### Security
- Mastodon API: Fix content warnings skipping HTML sanitization

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@ -649,20 +649,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
defp restrict_tag(query, _), do: query
defp restrict_to_cc(query, recipients_to, recipients_cc) do
from(
activity in query,
where:
fragment(
"(?->'to' \\?| ?) or (?->'cc' \\?| ?)",
activity.data,
^recipients_to,
activity.data,
^recipients_cc
)
)
end
defp restrict_recipients(query, [], _user), do: query
defp restrict_recipients(query, recipients, nil) do
@ -885,9 +871,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
|> Enum.reverse()
end
def fetch_activities_bounded(recipients_to, recipients_cc, opts \\ %{}) do
def fetch_activities_bounded_query(query, recipients, recipients_with_public) do
from(activity in query,
where:
fragment("? && ?", activity.recipients, ^recipients) or
(fragment("? && ?", activity.recipients, ^recipients_with_public) and
"https://www.w3.org/ns/activitystreams#Public" in activity.recipients)
)
end
def fetch_activities_bounded(recipients, recipients_with_public, opts \\ %{}) do
fetch_activities_query([], opts)
|> restrict_to_cc(recipients_to, recipients_cc)
|> fetch_activities_bounded_query(recipients, recipients_with_public)
|> Pagination.fetch_paginated(opts)
|> Enum.reverse()
end

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@ -93,7 +93,10 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
object
|> Utils.determine_explicit_mentions()
explicit_mentions = explicit_mentions ++ ["https://www.w3.org/ns/activitystreams#Public"]
follower_collection = User.get_cached_by_ap_id(Containment.get_actor(object)).follower_address
explicit_mentions =
explicit_mentions ++ ["https://www.w3.org/ns/activitystreams#Public", follower_collection]
object
|> fix_explicit_addressing(explicit_mentions)

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@ -1186,4 +1186,33 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
def data_uri do
File.read!("test/fixtures/avatar_data_uri")
end
describe "fetch_activities_bounded" do
test "fetches private posts for followed users" do
user = insert(:user)
{:ok, activity} =
CommonAPI.post(user, %{
"status" => "thought I looked cute might delete later :3",
"visibility" => "private"
})
[result] = ActivityPub.fetch_activities_bounded([user.follower_address], [])
assert result.id == activity.id
end
test "fetches only public posts for other users" do
user = insert(:user)
{:ok, activity} = CommonAPI.post(user, %{"status" => "#cofe", "visibility" => "public"})
{:ok, _private_activity} =
CommonAPI.post(user, %{
"status" => "why is tenshi eating a corndog so cute?",
"visibility" => "private"
})
[result] = ActivityPub.fetch_activities_bounded([], [user.follower_address])
assert result.id == activity.id
end
end
end

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@ -1209,4 +1209,44 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
{:ok, _} = Transmogrifier.prepare_outgoing(activity.data)
end
end
describe "fix_explicit_addressing" do
test "moves non-explicitly mentioned actors to cc" do
user = insert(:user)
explicitly_mentioned_actors = [
"https://pleroma.gold/users/user1",
"https://pleroma.gold/user2"
]
object = %{
"actor" => user.ap_id,
"to" => explicitly_mentioned_actors ++ ["https://social.beepboop.ga/users/dirb"],
"cc" => [],
"tag" =>
Enum.map(explicitly_mentioned_actors, fn href ->
%{"type" => "Mention", "href" => href}
end)
}
fixed_object = Transmogrifier.fix_explicit_addressing(object)
assert Enum.all?(explicitly_mentioned_actors, &(&1 in fixed_object["to"]))
refute "https://social.beepboop.ga/users/dirb" in fixed_object["to"]
assert "https://social.beepboop.ga/users/dirb" in fixed_object["cc"]
end
test "does not move actor's follower collection to cc" do
user = insert(:user)
object = %{
"actor" => user.ap_id,
"to" => [user.follower_address],
"cc" => []
}
fixed_object = Transmogrifier.fix_explicit_addressing(object)
assert user.follower_address in fixed_object["to"]
refute user.follower_address in fixed_object["cc"]
end
end
end