46 lines
1.3 KiB
Elixir
46 lines
1.3 KiB
Elixir
defmodule Mobilizon.Users.PushSubscription do
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@moduledoc """
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Represents informations about a push subscription for a specific user
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"""
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use Ecto.Schema
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alias Mobilizon.Users.User
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import Ecto.Changeset
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@type t :: %__MODULE__{
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digest: String.t(),
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user: User.t(),
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endpoint: String.t(),
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auth: String.t(),
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p256dh: String.t()
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}
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@primary_key {:id, :binary_id, autogenerate: true}
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schema "user_push_subscriptions" do
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field(:digest, :string)
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belongs_to(:user, User)
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field(:endpoint, :string)
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field(:auth, :string)
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field(:p256dh, :string)
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timestamps()
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end
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@doc false
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@spec changeset(t | Ecto.Schema.t(), map) :: Ecto.Changeset.t()
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def changeset(push_subscription, attrs) do
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push_subscription
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|> cast(attrs, [:user_id, :endpoint, :auth, :p256dh])
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|> put_change(:digest, compute_digest(attrs))
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|> validate_required([:digest, :user_id, :endpoint, :auth, :p256dh])
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|> unique_constraint([:digest, :user_id], name: :user_push_subscriptions_user_id_digest_index)
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end
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defp compute_digest(attrs) do
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data =
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Jason.encode!(%{endpoint: attrs.endpoint, keys: %{auth: attrs.auth, p256dh: attrs.p256dh}})
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:sha256
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|> :crypto.hash(data)
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|> Base.encode16()
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end
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end
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