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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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83
lib/federation/web_finger/web_finger.ex
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@@ -19,6 +19,10 @@ defmodule Mobilizon.Federation.WebFinger do
require Logger
import SweetXml
@doc """
Returns the Web Host Metadata (for `/.well-known/host-meta`) representation for the instance, following RFC6414.
"""
@spec host_meta :: String.t()
def host_meta do
base_url = Endpoint.url()
%URI{host: host} = URI.parse(base_url)
@@ -47,6 +51,10 @@ defmodule Mobilizon.Federation.WebFinger do
|> XmlBuilder.to_doc()
end
@doc """
Returns the Webfinger representation for the instance, following RFC7033.
"""
@spec webfinger(String.t(), String.t()) :: {:ok, map} | {:error, :actor_not_found}
def webfinger(resource, "JSON") do
host = Endpoint.host()
regex = ~r/(acct:)?(?<name>\w+)@#{host}/
@@ -61,11 +69,14 @@ defmodule Mobilizon.Federation.WebFinger do
{:ok, represent_actor(actor, "JSON")}
_e ->
{:error, "Couldn't find actor"}
{:error, :actor_not_found}
end
end
end
@doc """
Return an `Mobilizon.Actors.Actor` Webfinger representation (as JSON)
"""
@spec represent_actor(Actor.t()) :: map()
@spec represent_actor(Actor.t(), String.t()) :: map()
def represent_actor(%Actor{} = actor), do: represent_actor(actor, "JSON")
@@ -89,6 +100,7 @@ defmodule Mobilizon.Federation.WebFinger do
}
end
@spec maybe_add_avatar(list(map()), Actor.t()) :: list(map())
defp maybe_add_avatar(data, %Actor{avatar: avatar}) when not is_nil(avatar) do
data ++
[
@@ -102,6 +114,7 @@ defmodule Mobilizon.Federation.WebFinger do
defp maybe_add_avatar(data, _actor), do: data
@spec maybe_add_profile_page(list(map()), Actor.t()) :: list(map())
defp maybe_add_profile_page(data, %Actor{type: :Group, url: url}) do
data ++
[
@@ -115,35 +128,69 @@ defmodule Mobilizon.Federation.WebFinger do
defp maybe_add_profile_page(data, _actor), do: data
@type finger_errors ::
:host_not_found | :address_invalid | :http_error | :webfinger_information_not_json
@doc """
Finger an actor to retreive it's ActivityPub ID/URL
Fetches the Extensible Resource Descriptor endpoint `/.well-known/host-meta` to find the Webfinger endpoint (usually `/.well-known/webfinger?resource=`) with `find_webfinger_endpoint/1` and then performs a Webfinger query to get the ActivityPub ID associated to an actor.
Fetches the Extensible Resource Descriptor endpoint `/.well-known/host-meta` to find the Webfinger endpoint (usually `/.well-known/webfinger?resource=`) and then performs a Webfinger query to get the ActivityPub ID associated to an actor.
"""
@spec finger(String.t()) :: {:ok, String.t()} | {:error, atom()}
@spec finger(String.t()) ::
{:ok, String.t()}
| {:error, finger_errors}
def finger(actor) do
actor = String.trim_leading(actor, "@")
with address when is_binary(address) <- apply_webfinger_endpoint(actor),
false <- address_invalid(address),
{:ok, %{body: body, status: code}} when code in 200..299 <-
WebfingerClient.get(address),
{:ok, %{"url" => url}} <- webfinger_from_json(body) do
{:ok, url}
else
e ->
Logger.debug("Couldn't finger #{actor}")
Logger.debug(inspect(e))
{:error, e}
case validate_endpoint(actor) do
{:ok, address} ->
case fetch_webfinger_data(address) do
{:ok, %{"url" => url}} ->
{:ok, url}
{:error, err} ->
Logger.debug("Couldn't process webfinger data for #{actor}")
err
end
{:error, err} ->
Logger.debug("Couldn't find webfinger endpoint for #{actor}")
{:error, err}
end
end
@doc """
Fetches the Extensible Resource Descriptor endpoint `/.well-known/host-meta` to find the Webfinger endpoint (usually `/.well-known/webfinger?resource=`)
"""
@spec fetch_webfinger_data(String.t()) ::
{:ok, map()} | {:error, :webfinger_information_not_json | :http_error}
defp fetch_webfinger_data(address) do
case WebfingerClient.get(address) do
{:ok, %{body: body, status: code}} when code in 200..299 ->
webfinger_from_json(body)
_ ->
{:error, :http_error}
end
end
@spec validate_endpoint(String.t()) ::
{:ok, String.t()} | {:error, :address_invalid | :host_not_found}
defp validate_endpoint(actor) do
case apply_webfinger_endpoint(actor) do
address when is_binary(address) ->
if address_invalid(address) do
{:error, :address_invalid}
else
{:ok, address}
end
_ ->
{:error, :host_not_found}
end
end
# Fetches the Extensible Resource Descriptor endpoint `/.well-known/host-meta` to find the Webfinger endpoint (usually `/.well-known/webfinger?resource=`)
@spec find_webfinger_endpoint(String.t()) ::
{:ok, String.t()} | {:error, :link_not_found} | {:error, any()}
def find_webfinger_endpoint(domain) when is_binary(domain) do
defp find_webfinger_endpoint(domain) when is_binary(domain) do
with {:ok, %{body: body}} <- fetch_document("http://#{domain}/.well-known/host-meta"),
link_template when is_binary(link_template) <- find_link_from_template(body) do
{:ok, link_template}