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https://akkoma.dev/AkkomaGang/akkoma.git
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fix pattern matching in fetch errors
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18442dcc7e
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@ -136,10 +136,13 @@ defmodule Pleroma.Object.Fetcher do
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def fetch_object_from_id(id, options \\ []) do
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with %URI{} = uri <- URI.parse(id),
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# let's check the URI is even vaguely valid first
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{:valid_uri_scheme, true} <- {:valid_uri_scheme, uri.scheme == "http" or uri.scheme == "https"},
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{:valid_uri_scheme, true} <-
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{:valid_uri_scheme, uri.scheme == "http" or uri.scheme == "https"},
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# If we have instance restrictions, apply them here to prevent fetching from unwanted instances
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{:ok, nil} <- Pleroma.Web.ActivityPub.MRF.SimplePolicy.check_reject(uri),
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{:ok, _} <- Pleroma.Web.ActivityPub.MRF.SimplePolicy.check_accept(uri),
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{:mrf_reject_check, {:ok, nil}} <-
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{:mrf_reject_check, Pleroma.Web.ActivityPub.MRF.SimplePolicy.check_reject(uri)},
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{:mrf_accept_check, {:ok, _}} <-
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{:mrf_accept_check, Pleroma.Web.ActivityPub.MRF.SimplePolicy.check_accept(uri)},
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{_, nil} <- {:fetch_object, Object.get_cached_by_ap_id(id)},
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{_, true} <- {:allowed_depth, Federator.allowed_thread_distance?(options[:depth])},
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{_, {:ok, data}} <- {:fetch, fetch_and_contain_remote_object_from_id(id)},
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@ -159,6 +162,14 @@ defmodule Pleroma.Object.Fetcher do
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log_fetch_error(id, e)
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{:error, :invalid_uri_scheme}
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{:mrf_reject_check, _} = e ->
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log_fetch_error(id, e)
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{:reject, :mrf}
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{:mrf_accept_check, _} = e ->
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log_fetch_error(id, e)
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{:reject, :mrf}
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{:containment, reason} = e ->
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log_fetch_error(id, e)
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{:error, reason}
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@ -188,9 +199,6 @@ defmodule Pleroma.Object.Fetcher do
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log_fetch_error(id, e)
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{:error, reason}
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{:reject, reason} ->
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{:reject, reason}
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e ->
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log_fetch_error(id, e)
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{:error, e}
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@ -255,7 +263,12 @@ defmodule Pleroma.Object.Fetcher do
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Logger.debug("Fetching object #{id} via AP")
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with {:valid_uri_scheme, true} <- {:valid_uri_scheme, String.starts_with?(id, "http")},
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{_, :ok} <- {:local_fetch, Containment.contain_local_fetch(id)},
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%URI{} = uri <- URI.parse(id),
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{:mrf_reject_check, {:ok, nil}} <-
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{:mrf_reject_check, Pleroma.Web.ActivityPub.MRF.SimplePolicy.check_reject(uri)},
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{:mrf_accept_check, {:ok, _}} <-
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{:mrf_accept_check, Pleroma.Web.ActivityPub.MRF.SimplePolicy.check_accept(uri)},
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{:local_fetch, :ok} <- {:local_fetch, Containment.contain_local_fetch(id)},
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{:ok, final_id, body} <- get_object(id),
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{:ok, data} <- safe_json_decode(body),
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{_, :ok} <- {:strict_id, Containment.contain_id_to_fetch(final_id, data)},
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@ -266,10 +279,18 @@ defmodule Pleroma.Object.Fetcher do
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{:ok, data}
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else
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{:strict_id, _} = e->
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{:strict_id, _} = e ->
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log_fetch_error(id, e)
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{:error, :id_mismatch}
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{:mrf_reject_check, _} = e ->
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log_fetch_error(id, e)
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{:reject, :mrf}
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{:mrf_accept_check, _} = e ->
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log_fetch_error(id, e)
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{:reject, :mrf}
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{:valid_uri_scheme, _} = e ->
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log_fetch_error(id, e)
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{:error, :invalid_uri_scheme}
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@ -1730,7 +1730,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
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Logger.debug("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
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{:error, e}
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{:error, {:reject, reason} = e} ->
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{:reject, reason} = e ->
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Logger.debug("Rejected user #{ap_id}: #{inspect(reason)}")
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{:error, e}
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@ -162,7 +162,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
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object
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end
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else
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object
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object
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end
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end
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@ -22,6 +22,18 @@ defmodule Pleroma.Workers.RemoteFetcherWorker do
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{:error, :allowed_depth} ->
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{:discard, :allowed_depth}
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{:error, :invalid_uri_scheme} ->
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{:discard, :invalid_uri_scheme}
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{:error, :local_resource} ->
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{:discard, :local_resource}
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{:reject, _} ->
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{:discard, :reject}
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{:error, :id_mismatch} ->
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{:discard, :id_mismatch}
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_ ->
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:error
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end
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@ -252,12 +252,12 @@ defmodule Pleroma.Object.FetcherTest do
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end
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test "it does not fetch a spoofed object with id different from URL" do
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assert {:error, "Object's ActivityPub id/url does not match final fetch URL"} =
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assert {:error, :id_mismatch} =
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Fetcher.fetch_and_contain_remote_object_from_id(
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"https://patch.cx/media/03ca3c8b4ac3ddd08bf0f84be7885f2f88de0f709112131a22d83650819e36c2.json"
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)
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assert {:error, "Object's ActivityPub id/url does not match final fetch URL"} =
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assert {:error, :id_mismatch} =
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Fetcher.fetch_and_contain_remote_object_from_id(
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"https://patch.cx/media/spoof_stage1.json"
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)
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@ -287,14 +287,14 @@ defmodule Pleroma.Object.FetcherTest do
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end
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test "it does not fetch a spoofed object with a foreign actor" do
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assert {:error, "Object containment failed."} =
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assert {:error, _} =
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Fetcher.fetch_and_contain_remote_object_from_id(
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"https://patch.cx/objects/spoof_foreign_actor"
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)
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end
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test "it does not fetch from localhost" do
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assert {:error, "Trying to fetch local resource"} =
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assert {:error, :local_resource} =
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Fetcher.fetch_and_contain_remote_object_from_id(
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Pleroma.Web.Endpoint.url() <> "/spoof_local"
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)
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@ -125,18 +125,6 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
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assert activity.data["context"] == object.data["context"]
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end
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test "it keeps link tags" do
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insert(:user, ap_id: "https://example.org/users/alice")
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message = File.read!("test/fixtures/fep-e232.json") |> Jason.decode!()
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assert capture_log(fn ->
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assert {:ok, activity} = Transmogrifier.handle_incoming(message)
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object = Object.normalize(activity)
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assert [%{"type" => "Mention"}, %{"type" => "Link"}] = object.data["tag"]
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end) =~ "Object rejected while fetching"
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end
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test "it accepts quote posts" do
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insert(:user, ap_id: "https://misskey.io/users/7rkrarq81i")
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@ -1340,7 +1340,6 @@ defmodule HttpRequestMock do
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}}
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end
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def get("https://example.org/emoji/firedfox.png", _, _, _) do
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{:ok, %Tesla.Env{status: 200, body: File.read!("test/fixtures/image.jpg")}}
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end
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