forked from AkkomaGang/akkoma
108 lines
2.8 KiB
Elixir
108 lines
2.8 KiB
Elixir
defmodule Pleroma.Web.ActivityPub.ActivityPub do
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alias Pleroma.Repo
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alias Pleroma.{Activity, Object, Upload, User}
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import Ecto.Query
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def insert(map) when is_map(map) do
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map = map
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|> Map.put_new_lazy("id", &generate_activity_id/0)
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|> Map.put_new_lazy("published", &make_date/0)
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map = if is_map(map["object"]) do
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object = Map.put_new_lazy(map["object"], "id", &generate_object_id/0)
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Repo.insert!(%Object{data: object})
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Map.put(map, "object", object)
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else
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map
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end
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Repo.insert(%Activity{data: map})
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end
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def like(%User{ap_id: ap_id}, object = %Object{data: %{ "id" => id}}) do
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data = %{
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"type" => "Like",
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"actor" => ap_id,
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"object" => id
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}
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{:ok, activity} = insert(data)
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like_count = (object.data["like_count"] || 0) + 1
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new_data = object.data |> Map.put("like_count", like_count)
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changeset = Ecto.Changeset.change(object, data: new_data)
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{:ok, object} = Repo.update(changeset)
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# Update activities that already had this. Could be done in a seperate process.
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relevant_activities = Activity.all_by_object_ap_id(id)
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Enum.map(relevant_activities, fn (activity) ->
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new_activity_data = activity.data |> Map.put("object", new_data)
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changeset = Ecto.Changeset.change(activity, data: new_activity_data)
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Repo.update(changeset)
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end)
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{:ok, activity, object}
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end
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def generate_activity_id do
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generate_id("activities")
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end
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def generate_context_id do
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generate_id("contexts")
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end
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def generate_object_id do
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generate_id("objects")
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end
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def generate_id(type) do
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"#{Pleroma.Web.base_url()}/#{type}/#{Ecto.UUID.generate}"
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end
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def fetch_public_activities(opts \\ %{}) do
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public = ["https://www.w3.org/ns/activitystreams#Public"]
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fetch_activities(public, opts)
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end
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def fetch_activities(recipients, opts \\ %{}) do
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since_id = opts["since_id"] || 0
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query = from activity in Activity,
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limit: 20,
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order_by: [desc: :inserted_at]
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query = Enum.reduce(recipients, query, fn (recipient, q) ->
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map = %{ to: [recipient] }
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from activity in q,
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or_where: fragment(~s(? @> ?), activity.data, ^map)
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end)
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query = from activity in query,
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where: activity.id > ^since_id
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query = if opts["max_id"] do
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from activity in query, where: activity.id < ^opts["max_id"]
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else
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query
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end
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Repo.all(query)
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|> Enum.reverse
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end
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def fetch_activities_for_context(context) do
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query = from activity in Activity,
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where: fragment("? @> ?", activity.data, ^%{ context: context })
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Repo.all(query)
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end
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def upload(%Plug.Upload{} = file) do
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data = Upload.store(file)
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Repo.insert(%Object{data: data})
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end
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defp make_date do
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DateTime.utc_now() |> DateTime.to_iso8601
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end
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end
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