54 lines
1.3 KiB
Elixir
54 lines
1.3 KiB
Elixir
defmodule Mobilizon.Users.PushSubscription do
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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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@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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embeds_one :data, Data, on_replace: :delete do
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field(:endpoint, :string)
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embeds_one :keys, Keys, on_replace: :delete do
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field(:auth, :string)
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field(:p256dh, :string)
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end
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end
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timestamps()
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end
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@doc false
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def changeset(push_subscription, attrs) do
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push_subscription
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|> cast(attrs, [:user_id])
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|> cast_embed(:data, with: &cast_data/2)
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|> put_change(:digest, compute_digest(attrs.data))
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|> validate_required([:digest, :user_id, :data])
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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 cast_data(schema, attrs) do
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schema
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|> cast(attrs, [:endpoint])
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|> cast_embed(:keys, with: &cast_keys/2)
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|> validate_required([:endpoint, :keys])
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end
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defp cast_keys(schema, attrs) do
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schema
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|> cast(attrs, [:auth, :p256dh])
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|> validate_required([:auth, :p256dh])
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end
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defp compute_digest(data) do
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data = Jason.encode!(data)
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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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