Only have one subscription per callback.

This commit is contained in:
Roger Braun 2017-04-22 13:44:21 +02:00
parent 1feb193731
commit 8fb73c28bb
6 changed files with 107 additions and 48 deletions

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@ -30,6 +30,8 @@
"application/xrd+xml" => ["xrd+xml"]
}
config :pleroma, :websub_verifier, Pleroma.Web.Websub
# Import environment specific config. This must remain at the bottom
# of this file so it overrides the configuration defined above.
import_config "#{Mix.env}.exs"

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@ -24,3 +24,5 @@
# Reduce hash rounds for testing
config :comeonin, :pbkdf2_rounds, 1
config :pleroma, :websub_verifier, Pleroma.Web.WebsubMock

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@ -3,12 +3,15 @@ defmodule Pleroma.Web.Websub do
alias Pleroma.Websub
alias Pleroma.Web.Websub.WebsubServerSubscription
alias Pleroma.Web.OStatus.FeedRepresenter
alias Pleroma.Web.OStatus
import Ecto.Query
@websub_verifier Application.get_env(:pleroma, :websub_verifier)
def verify(subscription, getter \\ &HTTPoison.get/3 ) do
challenge = Base.encode16(:crypto.strong_rand_bytes(8))
lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.inserted_at) |> to_string
lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.updated_at) |> to_string
params = %{
"hub.challenge": challenge,
@ -48,4 +51,53 @@ def publish(topic, user, activity) do
])
end)
end
def incoming_subscription_request(user, params) do
with {:ok, topic} <- valid_topic(params, user),
{:ok, lease_time} <- lease_time(params),
secret <- params["hub.secret"],
callback <- params["hub.callback"]
do
subscription = get_subscription(topic, callback)
data = %{
state: subscription.state || "requested",
topic: topic,
secret: secret,
callback: callback
}
change = Ecto.Changeset.change(subscription, data)
websub = Repo.insert_or_update!(change)
change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.updated_at, lease_time)})
websub = Repo.update!(change)
# Just spawn that for now, maybe pool later.
spawn(fn -> @websub_verifier.verify(websub) end)
{:ok, websub}
else {:error, reason} ->
{:error, reason}
end
end
defp get_subscription(topic, callback) do
Repo.get_by(WebsubServerSubscription, topic: topic, callback: callback) || %WebsubServerSubscription{}
end
defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
{:ok, String.to_integer(lease_seconds)}
end
defp lease_time(_) do
{:ok, 60 * 60 * 24 * 3} # three days
end
defp valid_topic(%{"hub.topic" => topic}, user) do
if topic == OStatus.feed_path(user) do
{:ok, topic}
else
{:error, "Wrong topic requested, expected #{OStatus.feed_path(user)}, got #{topic}"}
end
end
end

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@ -1,32 +1,13 @@
defmodule Pleroma.Web.Websub.WebsubController do
use Pleroma.Web, :controller
alias Pleroma.Web.Websub.WebsubServerSubscription
alias Pleroma.{Repo, User}
alias Pleroma.Web.OStatus
alias Pleroma.User
alias Pleroma.Web.Websub
def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
user = User.get_cached_by_nickname(nickname)
with {:ok, topic} <- valid_topic(params, user),
{:ok, lease_time} <- lease_time(params),
secret <- params["hub.secret"]
with {:ok, _websub} <- Websub.incoming_subscription_request(user, params)
do
data = %{
state: "requested",
topic: topic,
secret: secret,
callback: params["hub.callback"]
}
change = Ecto.Changeset.change(%WebsubServerSubscription{}, data)
websub = Repo.insert!(change)
change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.inserted_at, lease_time)})
websub = Repo.update!(change)
# Just spawn that for now, maybe pool later.
spawn(fn -> Websub.verify(websub) end)
conn
|> send_resp(202, "Accepted")
else {:error, reason} ->
@ -34,20 +15,4 @@ def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
|> send_resp(500, reason)
end
end
defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
{:ok, String.to_integer(lease_seconds)}
end
defp lease_time(_) do
{:ok, 60 * 60 * 24 * 3} # three days
end
defp valid_topic(%{"hub.topic" => topic}, user) do
if topic == OStatus.feed_path(user) do
{:ok, topic}
else
{:error, "Wrong topic requested, expected #{OStatus.feed_path(user)}, got #{topic}"}
end
end
end

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@ -1,8 +1,6 @@
defmodule Pleroma.Web.Websub.WebsubControllerTest do
use Pleroma.Web.ConnCase
import Pleroma.Factory
alias Pleroma.Repo
alias Pleroma.Web.Websub.WebsubServerSubscription
test "websub subscription request", %{conn: conn} do
user = insert(:user)
@ -21,11 +19,5 @@ test "websub subscription request", %{conn: conn} do
|> post(path, data)
assert response(conn, 202) == "Accepted"
subscription = Repo.one!(WebsubServerSubscription)
assert subscription.topic == Pleroma.Web.OStatus.feed_path(user)
assert subscription.state == "requested"
assert subscription.secret == "a random secret"
assert subscription.callback == "http://example.org/sub"
assert subscription.valid_until == NaiveDateTime.add(subscription.inserted_at, 100)
end
end

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@ -1,6 +1,12 @@
defmodule Pleroma.Web.WebsubMock do
def verify(sub) do
{:ok, sub}
end
end
defmodule Pleroma.Web.WebsubTest do
use Pleroma.DataCase
alias Pleroma.Web.Websub
alias Pleroma.Web.Websub.WebsubServerSubscription
import Pleroma.Factory
test "a verification of a request that is accepted" do
@ -29,7 +35,6 @@ test "a verification of a request that is accepted" do
test "a verification of a request that doesn't return 200" do
sub = insert(:websub_subscription)
topic = sub.topic
getter = fn (_path, _headers, _options) ->
{:ok, %HTTPoison.Response{
@ -41,4 +46,45 @@ test "a verification of a request that doesn't return 200" do
{:error, sub} = Websub.verify(sub, getter)
assert sub.state == "rejected"
end
test "an incoming subscription request" do
user = insert(:user)
data = %{
"hub.callback" => "http://example.org/sub",
"hub.mode" => "subscription",
"hub.topic" => Pleroma.Web.OStatus.feed_path(user),
"hub.secret" => "a random secret",
"hub.lease_seconds" => "100"
}
{:ok, subscription } = Websub.incoming_subscription_request(user, data)
assert subscription.topic == Pleroma.Web.OStatus.feed_path(user)
assert subscription.state == "requested"
assert subscription.secret == "a random secret"
assert subscription.callback == "http://example.org/sub"
end
test "an incoming subscription request for an existing subscription" do
user = insert(:user)
sub = insert(:websub_subscription, state: "accepted", topic: Pleroma.Web.OStatus.feed_path(user))
data = %{
"hub.callback" => sub.callback,
"hub.mode" => "subscription",
"hub.topic" => Pleroma.Web.OStatus.feed_path(user),
"hub.secret" => "a random secret",
"hub.lease_seconds" => "100"
}
{:ok, subscription } = Websub.incoming_subscription_request(user, data)
assert subscription.topic == Pleroma.Web.OStatus.feed_path(user)
assert subscription.state == sub.state
assert subscription.secret == "a random secret"
assert subscription.callback == sub.callback
assert length(Repo.all(WebsubServerSubscription)) == 1
assert subscription.id == sub.id
end
end