removes passwordless use from Registration, makes tokens longer for r…

…egistration

app/controllers/registrations_controller.rb

@@ -22,7 +22,7 @@ def create
   def register
     registration = Registration.find_by!(identifier: params[:id])
 
-    if registration.token_digest == Passwordless.digest(params[:token])
+    if registration.valid_token_digest?(params[:token])
       registration.register!
       sign_in(create_passwordless_session(registration.user))
       redirect_to root_url, notice: "Thanks for registering! You're now signed in."

app/models/registration.rb

@@ -19,7 +19,7 @@ class RegistrationNotAvailableError < StandardError; end
   attr_reader :token
 
   def token=(plaintext)
-    self.token_digest = Passwordless.digest(plaintext)
+    self.token_digest = Registration.digest(plaintext)
     @token = (plaintext)
   end
 
@@ -51,21 +51,40 @@ def to_param
     identifier
   end
 
+  def valid_token_digest?(token_param)
+    token_digest == Registration.digest(token_param)
+  end
+
+  def self.digest(string)
+    key = ActiveSupport::KeyGenerator.new(
+      Rails.application.secret_key_base
+    ).generate_key(
+      Rails.application.credentials[Rails.env].registration_salt
+    )
+    OpenSSL::HMAC.hexdigest("SHA256", key, string)
+  end
+
   private
 
   def token_digest_available?(token_digest)
     Registration.available.where(token_digest: token_digest).none?
   end
 
+  def generate_token
+    token = SecureRandom.hex(16)
+  end
+
   def set_defaults
-    self.expires_at ||= Passwordless.config.expires_at.call
+    self.expires_at ||= 1.day.from_now
 
     return if self.token_digest
 
     self.token, self.token_digest = loop {
-      token = Passwordless.config.token_generator.call(self)
-      digest = Passwordless.digest(token)
+      token = generate_token
+      digest = Registration.digest(token)
       break [token, digest] if token_digest_available?(digest)
     }
   end
+
+
 end

config/credentials.yml.enc

@@ -1 +1 @@
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--9pcJP4/b1Sw+PmTx--EWtQpBLASmfnJw6DT7ZEOA==