honkoma/lib/pleroma/web/ostatus/ostatus_controller.ex

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defmodule Pleroma.Web.OStatus.OStatusController do
use Pleroma.Web, :controller
alias Pleroma.{User, Activity, Object}
alias Pleroma.Web.OStatus.{FeedRepresenter, ActivityRepresenter}
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alias Pleroma.Repo
alias Pleroma.Web.{OStatus, Federator}
alias Pleroma.Web.XML
alias Pleroma.Web.ActivityPub.ObjectView
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alias Pleroma.Web.ActivityPub.ActivityPubController
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alias Pleroma.Web.ActivityPub.ActivityPub
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plug(Pleroma.Web.FederatingPlug when action in [:salmon_incoming])
action_fallback(:errors)
def feed_redirect(conn, %{"nickname" => nickname}) do
case get_format(conn) do
"html" ->
Fallback.RedirectController.redirector(conn, nil)
"activity+json" ->
ActivityPubController.call(conn, :user)
_ ->
with %User{} = user <- User.get_cached_by_nickname(nickname) do
redirect(conn, external: OStatus.feed_path(user))
else
nil -> {:error, :not_found}
end
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end
end
def feed(conn, %{"nickname" => nickname} = params) do
with %User{} = user <- User.get_cached_by_nickname(nickname) do
query_params =
Map.take(params, ["max_id"])
|> Map.merge(%{"whole_db" => true, "actor_id" => user.ap_id})
activities =
ActivityPub.fetch_public_activities(query_params)
|> Enum.reverse()
response =
user
|> FeedRepresenter.to_simple_form(activities, [user])
|> :xmerl.export_simple(:xmerl_xml)
|> to_string
conn
|> put_resp_content_type("application/atom+xml")
|> send_resp(200, response)
else
nil -> {:error, :not_found}
end
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end
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defp decode_or_retry(body) do
with {:ok, magic_key} <- Pleroma.Web.Salmon.fetch_magic_key(body),
{:ok, doc} <- Pleroma.Web.Salmon.decode_and_validate(magic_key, body) do
{:ok, doc}
else
_e ->
with [decoded | _] <- Pleroma.Web.Salmon.decode(body),
doc <- XML.parse_document(decoded),
uri when not is_nil(uri) <- XML.string_from_xpath("/entry/author[1]/uri", doc),
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{:ok, _} <- Pleroma.Web.OStatus.make_user(uri, true),
{:ok, magic_key} <- Pleroma.Web.Salmon.fetch_magic_key(body),
{:ok, doc} <- Pleroma.Web.Salmon.decode_and_validate(magic_key, body) do
{:ok, doc}
end
end
end
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def salmon_incoming(conn, _) do
{:ok, body, _conn} = read_body(conn)
{:ok, doc} = decode_or_retry(body)
Federator.enqueue(:incoming_doc, doc)
conn
|> send_resp(200, "")
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end
def object(conn, %{"uuid" => uuid}) do
if get_format(conn) == "activity+json" do
ActivityPubController.call(conn, :object)
else
with id <- o_status_url(conn, :object, uuid),
{_, %Activity{} = activity} <-
{:activity, Activity.get_create_activity_by_object_ap_id(id)},
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{_, true} <- {:public?, ActivityPub.is_public?(activity)},
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%User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
case get_format(conn) do
"html" -> redirect(conn, to: "/notice/#{activity.id}")
_ -> represent_activity(conn, nil, activity, user)
end
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else
{:public?, false} ->
{:error, :not_found}
{:activity, nil} ->
{:error, :not_found}
e ->
e
end
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end
end
def activity(conn, %{"uuid" => uuid}) do
with id <- o_status_url(conn, :activity, uuid),
{_, %Activity{} = activity} <- {:activity, Activity.normalize(id)},
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{_, true} <- {:public?, ActivityPub.is_public?(activity)},
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%User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
case format = get_format(conn) do
"html" -> redirect(conn, to: "/notice/#{activity.id}")
_ -> represent_activity(conn, format, activity, user)
end
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else
{:public?, false} ->
{:error, :not_found}
{:activity, nil} ->
{:error, :not_found}
e ->
e
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end
end
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def notice(conn, %{"id" => id}) do
with {_, %Activity{} = activity} <- {:activity, Repo.get(Activity, id)},
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{_, true} <- {:public?, ActivityPub.is_public?(activity)},
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%User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
case format = get_format(conn) do
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"html" ->
conn
|> put_resp_content_type("text/html")
|> send_file(200, Pleroma.Plugs.InstanceStatic.file_path("index.html"))
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_ ->
represent_activity(conn, format, activity, user)
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end
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else
{:public?, false} ->
{:error, :not_found}
{:activity, nil} ->
{:error, :not_found}
e ->
e
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end
end
defp represent_activity(
conn,
"activity+json",
%Activity{data: %{"type" => "Create"}} = activity,
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_user
) do
object = Object.normalize(activity.data["object"])
conn
|> put_resp_header("content-type", "application/activity+json")
|> json(ObjectView.render("object.json", %{object: object}))
end
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defp represent_activity(_conn, "activity+json", _, _) do
{:error, :not_found}
end
defp represent_activity(conn, _, activity, user) do
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response =
activity
|> ActivityRepresenter.to_simple_form(user, true)
|> ActivityRepresenter.wrap_with_entry()
|> :xmerl.export_simple(:xmerl_xml)
|> to_string
conn
|> put_resp_content_type("application/atom+xml")
|> send_resp(200, response)
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end
def errors(conn, {:error, :not_found}) do
conn
|> put_status(404)
|> text("Not found")
end
def errors(conn, _) do
conn
|> put_status(500)
|> text("Something went wrong")
end
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end