hamlab/mobilizon-frontend
2
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

Refactor Core things, including Ecto handling, ActivityPub & Transmogrifier modules

Browse Source 
* Data doesn't need anymore to be converted to ActivityStream format to
be saved (this was taken from Pleroma and not at all a good idea here)
* Everything saved when creating an event is inserted into PostgreSQL in
a single transaction
This commit is contained in:
Thomas Citharel
2019-10-25 17:43:37 +02:00
parent 814cfbc8eb
commit cc820d6b63
69 changed files with 1881 additions and 1424 deletions
Download Patch File Download Diff File Expand all files Collapse all files

410
lib/service/activity_pub/activity_pub.ex
View File

@@ -8,7 +8,8 @@ defmodule Mobilizon.Service.ActivityPub do
# ActivityPub context.
"""
import Mobilizon.Service.ActivityPub.{Utils, Visibility}
import Mobilizon.Service.ActivityPub.Utils
import Mobilizon.Service.ActivityPub.Visibility
alias Mobilizon.{Actors, Config, Events}
alias Mobilizon.Actors.{Actor, Follower}
@@ -16,17 +17,12 @@ defmodule Mobilizon.Service.ActivityPub do
alias Mobilizon.Service.ActivityPub.{Activity, Converter, Convertible, Relay, Transmogrifier}
alias Mobilizon.Service.{Federator, WebFinger}
alias Mobilizon.Service.HTTPSignatures.Signature
alias MobilizonWeb.API.Utils, as: APIUtils
alias Mobilizon.Service.ActivityPub.Audience
alias Mobilizon.Service.ActivityPub.Converter.Utils, as: ConverterUtils
require Logger
@doc """
Get recipients for an activity or object
"""
@spec get_recipients(map()) :: list()
def get_recipients(data) do
(data["to"] || []) ++ (data["cc"] || [])
end
@doc """
Wraps an object into an activity
"""
@@ -106,8 +102,8 @@ defmodule Mobilizon.Service.ActivityPub do
@doc """
Getting an actor from url, eventually creating it
"""
@spec get_or_fetch_by_url(String.t(), boolean) :: {:ok, Actor.t()} | {:error, String.t()}
def get_or_fetch_by_url(url, preload \\ false) do
@spec get_or_fetch_actor_by_url(String.t(), boolean) :: {:ok, Actor.t()} | {:error, String.t()}
def get_or_fetch_actor_by_url(url, preload \\ false) do
case Actors.get_actor_by_url(url, preload) do
{:ok, %Actor{} = actor} ->
{:ok, actor}
@@ -126,27 +122,29 @@ defmodule Mobilizon.Service.ActivityPub do
end
@doc """
Create an activity of type "Create"
"""
def create(%{to: to, actor: actor, object: object} = params) do
Logger.debug("creating an activity")
Logger.debug(inspect(params))
Logger.debug(inspect(object))
additional = params[:additional] || %{}
# only accept false as false value
local = !(params[:local] == false)
published = params[:published]
Create an activity of type `Create`
with create_data <-
make_create_data(
%{to: to, actor: actor, published: published, object: object},
additional
),
{:ok, activity} <- create_activity(create_data, local),
{:ok, object} <- insert_full_object(create_data),
* Creates the object, which returns AS data
* Wraps ActivityStreams data into a `Create` activity
* Creates an `Mobilizon.Service.ActivityPub.Activity` from this
* Federates (asynchronously) the activity
* Returns the activity
"""
@spec create(atom(), map(), boolean, map()) :: {:ok, Activity.t(), struct()} | any()
def create(type, args, local \\ false, additional \\ %{}) do
Logger.debug("creating an activity")
Logger.debug(inspect(args))
{:ok, entity, create_data} =
case type do
:event -> create_event(args, additional)
:comment -> create_comment(args, additional)
:group -> create_group(args, additional)
end
with {:ok, activity} <- create_activity(create_data, local),
:ok <- maybe_federate(activity) do
# {:ok, actor} <- Actors.increase_event_count(actor) do
{:ok, activity, object}
{:ok, activity, entity}
else
err ->
Logger.error("Something went wrong while creating an activity")
@@ -155,21 +153,52 @@ defmodule Mobilizon.Service.ActivityPub do
end
end
def accept(%{to: to, actor: actor, object: object} = params, activity_wrapper_id \\ nil) do
# only accept false as false value
local = !(params[:local] == false)
@doc """
Create an activity of type `Update`
with data <- %{
"to" => to,
"type" => "Accept",
"actor" => actor,
"object" => object,
"id" => activity_wrapper_id || get_url(object) <> "/activity"
},
{:ok, activity} <- create_activity(data, local),
{:ok, object} <- insert_full_object(data),
* Updates the object, which returns AS data
* Wraps ActivityStreams data into a `Update` activity
* Creates an `Mobilizon.Service.ActivityPub.Activity` from this
* Federates (asynchronously) the activity
* Returns the activity
"""
@spec update(atom(), struct(), map(), boolean, map()) :: {:ok, Activity.t(), struct()} | any()
def update(type, old_entity, args, local \\ false, additional \\ %{}) do
Logger.debug("updating an activity")
Logger.debug(inspect(args))
{:ok, entity, update_data} =
case type do
:event -> update_event(old_entity, args, additional)
:actor -> update_actor(old_entity, args, additional)
end
with {:ok, activity} <- create_activity(update_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity, object}
{:ok, activity, entity}
else
err ->
Logger.error("Something went wrong while creating an activity")
Logger.debug(inspect(err))
err
end
end
def accept(type, entity, args, local \\ false, additional \\ %{}) do
{:ok, entity, update_data} =
case type do
:join -> accept_join(entity, args, additional)
:follow -> accept_follow(entity, args, additional)
end
with {:ok, activity} <- create_activity(update_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity, entity}
else
err ->
Logger.error("Something went wrong while creating an activity")
Logger.debug(inspect(err))
err
end
end
@@ -191,25 +220,6 @@ defmodule Mobilizon.Service.ActivityPub do
end
end
def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
# only accept false as false value
local = !(params[:local] == false)
with data <- %{
"to" => to,
"cc" => cc,
"id" => object["url"],
"type" => "Update",
"actor" => actor,
"object" => object
},
{:ok, activity} <- create_activity(data, local),
{:ok, object} <- update_object(object["id"], data),
:ok <- maybe_federate(activity) do
{:ok, activity, object}
end
end
# TODO: This is weird, maybe we shouldn't check here if we can make the activity.
# def like(
# %Actor{url: url} = actor,
@@ -290,15 +300,12 @@ defmodule Mobilizon.Service.ActivityPub do
Make an actor follow another
"""
def follow(%Actor{} = follower, %Actor{} = followed, activity_id \\ nil, local \\ true) do
with {:ok, %Follower{url: follow_url}} <-
with {:ok, %Follower{} = follower} <-
Actors.follow(followed, follower, activity_id, false),
activity_follow_id <-
activity_id || follow_url,
data <- make_follow_data(followed, follower, activity_follow_id),
{:ok, activity} <- create_activity(data, local),
{:ok, object} <- insert_full_object(data),
follower_as_data <- Convertible.model_to_as(follower),
{:ok, activity} <- create_activity(follower_as_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity, object}
{:ok, activity, follower}
else
{:error, err, msg} when err in [:already_following, :suspended] ->
{:error, msg}
@@ -310,16 +317,11 @@ defmodule Mobilizon.Service.ActivityPub do
"""
@spec unfollow(Actor.t(), Actor.t(), String.t(), boolean()) :: {:ok, map()} | any()
def unfollow(%Actor{} = follower, %Actor{} = followed, activity_id \\ nil, local \\ true) do
with {:ok, %Follower{id: follow_id}} <- Actors.unfollow(followed, follower),
with {:ok, %Follower{id: follow_id} = follow} <- Actors.unfollow(followed, follower),
# We recreate the follow activity
data <-
make_follow_data(
followed,
follower,
"#{MobilizonWeb.Endpoint.url()}/follow/#{follow_id}/activity"
),
{:ok, follow_activity} <- create_activity(data, local),
{:ok, _object} <- insert_full_object(data),
follow_as_data <-
Convertible.model_to_as(%{follow | actor: follower, target_actor: followed}),
{:ok, follow_activity} <- create_activity(follow_as_data, local),
activity_unfollow_id <-
activity_id || "#{MobilizonWeb.Endpoint.url()}/unfollow/#{follow_id}/activity",
unfollow_data <-
@@ -346,7 +348,7 @@ defmodule Mobilizon.Service.ActivityPub do
"id" => url <> "/delete"
}
with {:ok, _} <- Events.delete_event(event),
with {:ok, %Event{} = event} <- Events.delete_event(event),
{:ok, activity} <- create_activity(data, local),
:ok <- maybe_federate(activity) do
{:ok, activity, event}
@@ -362,11 +364,10 @@ defmodule Mobilizon.Service.ActivityPub do
"to" => [actor.url <> "/followers", "https://www.w3.org/ns/activitystreams#Public"]
}
with {:ok, _} <- Events.delete_comment(comment),
with {:ok, %Comment{} = comment} <- Events.delete_comment(comment),
{:ok, activity} <- create_activity(data, local),
{:ok, object} <- insert_full_object(data),
:ok <- maybe_federate(activity) do
{:ok, activity, object}
{:ok, activity, comment}
end
end
@@ -379,11 +380,10 @@ defmodule Mobilizon.Service.ActivityPub do
"to" => [url <> "/followers", "https://www.w3.org/ns/activitystreams#Public"]
}
with {:ok, _} <- Actors.delete_actor(actor),
with {:ok, %Actor{} = actor} <- Actors.delete_actor(actor),
{:ok, activity} <- create_activity(data, local),
{:ok, object} <- insert_full_object(data),
:ok <- maybe_federate(activity) do
{:ok, activity, object}
{:ok, activity, actor}
end
end
@@ -434,9 +434,9 @@ defmodule Mobilizon.Service.ActivityPub do
{:ok, _object} <- insert_full_object(join_data),
:ok <- maybe_federate(activity) do
if role === :participant do
accept(
%{to: [actor.url], actor: event.organizer_actor.url, object: join_data["id"]},
"#{MobilizonWeb.Endpoint.url()}/accept/join/#{participant.id}"
accept_join(
participant,
%{}
)
end
@@ -720,9 +720,233 @@ defmodule Mobilizon.Service.ActivityPub do
}
end
# # Whether the Public audience is in the activity's audience
# defp is_public?(activity) do
# "https://www.w3.org/ns/activitystreams#Public" in (activity.data["to"] ++
# (activity.data["cc"] || []))
# end
# Get recipients for an activity or object
@spec get_recipients(map()) :: list()
defp get_recipients(data) do
(data["to"] || []) ++ (data["cc"] || [])
end
@spec create_event(map(), map()) :: {:ok, map()}
defp create_event(args, additional) do
with args <- prepare_args_for_event(args),
{:ok, %Event{} = event} <- Events.create_event(args),
event_as_data <- Convertible.model_to_as(event),
audience <-
Audience.calculate_to_and_cc_from_mentions(
event.organizer_actor,
args.mentions,
nil,
event.visibility
),
create_data <-
make_create_data(event_as_data, Map.merge(audience, additional)) do
{:ok, event, create_data}
end
end
@spec create_comment(map(), map()) :: {:ok, map()}
defp create_comment(args, additional) do
with args <- prepare_args_for_comment(args),
{:ok, %Comment{} = comment} <- Events.create_comment(args),
comment_as_data <- Convertible.model_to_as(comment),
audience <-
Audience.calculate_to_and_cc_from_mentions(
comment.actor,
args.mentions,
args.in_reply_to_comment,
comment.visibility
),
create_data <-
make_create_data(comment_as_data, Map.merge(audience, additional)) do
{:ok, comment, create_data}
end
end
@spec create_group(map(), map()) :: {:ok, map()}
defp create_group(args, additional) do
with args <- prepare_args_for_group(args),
{:ok, %Actor{type: :Group} = group} <- Actors.create_group(args),
group_as_data <- Convertible.model_to_as(group),
audience <-
Audience.calculate_to_and_cc_from_mentions(
args.creator_actor,
[],
nil,
:public
),
create_data <-
make_create_data(group_as_data, Map.merge(audience, additional)) do
{:ok, group, create_data}
end
end
@spec update_event(Event.t(), map(), map()) ::
{:ok, Event.t(), Activity.t()} | any()
defp update_event(
%Event{} = old_event,
args,
additional
) do
with args <- prepare_args_for_event(args),
{:ok, %Event{} = new_event} <- Events.update_event(old_event, args),
event_as_data <- Convertible.model_to_as(new_event),
audience <-
Audience.calculate_to_and_cc_from_mentions(
new_event.organizer_actor,
Map.get(args, :mentions, []),
nil,
new_event.visibility
),
update_data <- make_update_data(event_as_data, Map.merge(audience, additional)) do
{:ok, new_event, update_data}
else
err ->
Logger.error("Something went wrong while creating an update activity")
Logger.debug(inspect(err))
err
end
end
@spec update_actor(Actor.t(), map(), map()) ::
{:ok, Actor.t(), Activity.t()} | any()
defp update_actor(%Actor{} = old_actor, args, additional) do
with {:ok, %Actor{} = new_actor} <- Actors.update_actor(old_actor, args),
actor_as_data <- Convertible.model_to_as(new_actor),
audience <-
Audience.calculate_to_and_cc_from_mentions(
new_actor,
[],
nil,
:public
),
additional <- Map.merge(additional, %{"actor" => old_actor.url}),
update_data <- make_update_data(actor_as_data, Map.merge(audience, additional)) do
{:ok, new_actor, update_data}
end
end
@spec accept_follow(Follower.t(), map(), map()) ::
{:ok, Follower.t(), Activity.t()} | any()
defp accept_follow(
%Follower{} = follower,
args,
additional
) do
with {:ok, %Follower{} = follower} <- Actors.update_follower(follower, args),
follower_as_data <- Convertible.model_to_as(follower),
audience <-
Audience.calculate_to_and_cc_from_mentions(follower.target_actor),
update_data <-
make_update_data(
follower_as_data,
Map.merge(Map.merge(audience, additional), %{
"id" => "#{MobilizonWeb.Endpoint.url()}/accept/follow/#{follower.id}"
})
) do
{:ok, follower, update_data}
else
err ->
Logger.error("Something went wrong while creating an update activity")
Logger.debug(inspect(err))
err
end
end
@spec accept_join(Participant.t(), map(), map()) ::
{:ok, Participant.t(), Activity.t()} | any()
defp accept_join(
%Participant{} = participant,
args,
additional \\ %{}
) do
with {:ok, %Participant{} = participant} <- Events.update_participant(participant, args),
participant_as_data <- Convertible.model_to_as(participant),
audience <-
Audience.calculate_to_and_cc_from_mentions(participant.actor),
update_data <-
make_accept_join_data(
participant_as_data,
Map.merge(Map.merge(audience, additional), %{
"id" => "#{MobilizonWeb.Endpoint.url()}/accept/join/#{participant.id}"
})
) do
{:ok, participant, update_data}
else
err ->
Logger.error("Something went wrong while creating an update activity")
Logger.debug(inspect(err))
err
end
end
# Prepare and sanitize arguments for events
defp prepare_args_for_event(args) do
# If title is not set: we are not updating it
args =
if Map.has_key?(args, :title) && !is_nil(args.title),
do: Map.update(args, :title, "", &String.trim(HtmlSanitizeEx.strip_tags(&1))),
else: args
# If we've been given a description (we might not get one if updating)
# sanitize it, HTML it, and extract tags & mentions from it
args =
if Map.has_key?(args, :description) && !is_nil(args.description) do
{description, mentions, tags} =
APIUtils.make_content_html(
String.trim(args.description),
Map.get(args, :tags, []),
"text/html"
)
mentions = ConverterUtils.fetch_mentions(Map.get(args, :mentions, []) ++ mentions)
Map.merge(args, %{
description: description,
mentions: mentions,
tags: tags
})
else
args
end
Map.update(args, :tags, [], &ConverterUtils.fetch_tags/1)
end
# Prepare and sanitize arguments for comments
defp prepare_args_for_comment(args) do
with in_reply_to_comment <-
args |> Map.get(:in_reply_to_comment_id) |> Events.get_comment(),
args <- Map.update(args, :visibility, :public, & &1),
{text, mentions, tags} <-
APIUtils.make_content_html(
args |> Map.get(:text, "") |> String.trim(),
# Can't put additional tags on a comment
[],
"text/html"
),
tags <- ConverterUtils.fetch_tags(tags),
mentions <- Map.get(args, :mentions, []) ++ ConverterUtils.fetch_mentions(mentions),
args <-
Map.merge(args, %{
actor_id: Map.get(args, :actor_id),
text: text,
mentions: mentions,
tags: tags,
in_reply_to_comment: in_reply_to_comment,
in_reply_to_comment_id:
if(is_nil(in_reply_to_comment), do: nil, else: Map.get(in_reply_to_comment, :id))
}) do
args
end
end
defp prepare_args_for_group(args) do
with preferred_username <-
args |> Map.get(:preferred_username) |> HtmlSanitizeEx.strip_tags() |> String.trim(),
summary <- args |> Map.get(:summary, "") |> String.trim(),
{summary, _mentions, _tags} <-
summary |> String.trim() |> APIUtils.make_content_html([], "text/html") do
%{args | preferred_username: preferred_username, summary: summary}
end
end
end