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Actor suspension refactoring

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Signed-off-by: Thomas Citharel <tcit@tcit.fr>
This commit is contained in:
Thomas Citharel
2021-09-10 11:36:05 +02:00
parent e9fecc4d24
commit 75e254d8b4
23 changed files with 816 additions and 603 deletions
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136
lib/federation/activity_pub/fetcher.ex
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@@ -15,39 +15,48 @@ defmodule Mobilizon.Federation.ActivityPub.Fetcher do
import Mobilizon.Federation.ActivityPub.Utils,
only: [maybe_date_fetch: 2, sign_fetch: 4, origin_check?: 2]
@spec fetch(String.t(), Keyword.t()) :: {:ok, map()}
import Mobilizon.Service.Guards, only: [is_valid_string: 1]
@spec fetch(String.t(), Keyword.t()) ::
{:ok, map()}
| {:ok, Tesla.Env.t()}
| {:error, String.t()}
| {:error, any()}
| {:error, :invalid_url}
def fetch(url, options \\ []) do
on_behalf_of = Keyword.get(options, :on_behalf_of, Relay.get_actor())
date = Signature.generate_date_header()
with false <- address_invalid(url),
date <- Signature.generate_date_header(),
headers <-
[{:Accept, "application/activity+json"}]
|> maybe_date_fetch(date)
|> sign_fetch(on_behalf_of, url, date),
client <-
ActivityPubClient.client(headers: headers),
{:ok, %Tesla.Env{body: data, status: code}} when code in 200..299 <-
ActivityPubClient.get(client, url) do
{:ok, data}
headers =
[{:Accept, "application/activity+json"}]
|> maybe_date_fetch(date)
|> sign_fetch(on_behalf_of, url, date)
client = ActivityPubClient.client(headers: headers)
if address_valid?(url) do
case ActivityPubClient.get(client, url) do
{:ok, %Tesla.Env{body: data, status: code}} when code in 200..299 ->
{:ok, data}
{:ok, %Tesla.Env{status: 410}} ->
Logger.debug("Resource at #{url} is 410 Gone")
{:error, :http_gone}
{:ok, %Tesla.Env{status: 404}} ->
Logger.debug("Resource at #{url} is 404 Gone")
{:error, :http_not_found}
{:ok, %Tesla.Env{} = res} ->
{:error, res}
end
else
{:ok, %Tesla.Env{status: 410}} ->
Logger.debug("Resource at #{url} is 410 Gone")
{:error, "Gone"}
{:ok, %Tesla.Env{status: 404}} ->
Logger.debug("Resource at #{url} is 404 Gone")
{:error, "Not found"}
{:ok, %Tesla.Env{} = res} ->
{:error, res}
{:error, err} ->
{:error, err}
{:error, :invalid_url}
end
end
@spec fetch_and_create(String.t(), Keyword.t()) :: {:ok, map(), struct()}
@spec fetch_and_create(String.t(), Keyword.t()) ::
{:ok, map(), struct()} | {:error, :invalid_url} | {:error, String.t()} | {:error, any}
def fetch_and_create(url, options \\ []) do
with {:ok, data} when is_map(data) <- fetch(url, options),
{:origin_check, true} <- {:origin_check, origin_check?(url, data)},
@@ -69,12 +78,16 @@ defmodule Mobilizon.Federation.ActivityPub.Fetcher do
{:ok, data} when is_binary(data) ->
{:error, "Failed to parse content as JSON"}
{:error, :invalid_url} ->
{:error, :invalid_url}
{:error, err} ->
{:error, err}
end
end
@spec fetch_and_update(String.t(), Keyword.t()) :: {:ok, map(), struct()}
@spec fetch_and_update(String.t(), Keyword.t()) ::
{:ok, map(), struct()} | {:error, String.t()} | :error | {:error, any}
def fetch_and_update(url, options \\ []) do
with {:ok, data} when is_map(data) <- fetch(url, options),
{:origin_check, true} <- {:origin_check, origin_check(url, data)},
@@ -96,44 +109,46 @@ defmodule Mobilizon.Federation.ActivityPub.Fetcher do
end
end
@type fetch_actor_errors :: :json_decode_error | :actor_deleted | :http_error
@doc """
Fetching a remote actor's information through its AP ID
"""
@spec fetch_and_prepare_actor_from_url(String.t()) :: {:ok, map()} | {:error, atom()} | any()
@spec fetch_and_prepare_actor_from_url(String.t()) ::
{:ok, map()} | {:error, fetch_actor_errors}
def fetch_and_prepare_actor_from_url(url) do
Logger.debug("Fetching and preparing actor from url")
Logger.debug(inspect(url))
res =
with {:ok, %{status: 200, body: body}} <-
Tesla.get(url,
headers: [{"Accept", "application/activity+json"}],
follow_redirect: true
),
:ok <- Logger.debug("response okay, now decoding json"),
{:ok, data} <- Jason.decode(body) do
Logger.debug("Got activity+json response at actor's endpoint, now converting data")
{:ok, ActorConverter.as_to_model_data(data)}
else
# Actor is gone, probably deleted
{:ok, %{status: 410}} ->
Logger.info("Response HTTP 410")
{:error, :actor_deleted}
case Tesla.get(url,
headers: [{"Accept", "application/activity+json"}],
follow_redirect: true
) do
{:ok, %{status: 200, body: body}} ->
Logger.debug("response okay, now decoding json")
{:ok, %Tesla.Env{}} ->
Logger.info("Non 200 HTTP Code")
{:error, :http_error}
case Jason.decode(body) do
{:ok, data} when is_map(data) ->
Logger.debug("Got activity+json response at actor's endpoint, now converting data")
{:ok, ActorConverter.as_to_model_data(data)}
{:error, e} ->
Logger.warn("Could not decode actor at fetch #{url}, #{inspect(e)}")
{:error, e}
{:error, %Jason.DecodeError{} = e} ->
Logger.warn("Could not decode actor at fetch #{url}, #{inspect(e)}")
{:error, :json_decode_error}
end
e ->
Logger.warn("Could not decode actor at fetch #{url}, #{inspect(e)}")
{:error, e}
end
{:ok, %{status: 410}} ->
Logger.info("Response HTTP 410")
{:error, :actor_deleted}
res
{:ok, %Tesla.Env{}} ->
Logger.info("Non 200 HTTP Code")
{:error, :http_error}
{:error, error} ->
Logger.warn("Could not fetch actor at fetch #{url}, #{inspect(error)}")
{:error, :http_error}
end
end
@spec origin_check(String.t(), map()) :: boolean()
@@ -147,11 +162,14 @@ defmodule Mobilizon.Federation.ActivityPub.Fetcher do
end
end
@spec address_invalid(String.t()) :: false | {:error, :invalid_url}
defp address_invalid(address) do
with %URI{host: host, scheme: scheme} <- URI.parse(address),
true <- is_nil(host) or is_nil(scheme) do
{:error, :invalid_url}
@spec address_valid?(String.t()) :: boolean
defp address_valid?(address) do
case URI.parse(address) do
%URI{host: host, scheme: scheme} ->
is_valid_string(host) and is_valid_string(scheme)
_ ->
false
end
end
end