1 files changed, 28 insertions, 0 deletions
diff --git a/src/actions/mixins/api/auth/helpers.cr b/src/actions/mixins/api/auth/helpers.cr
new file mode 100644
index 0000000..6b51cb5
--- /dev/null
+++ b/src/actions/mixins/api/auth/helpers.cr
@@ -0,0 +1,28 @@
+module Api::Auth::Helpers
+  # The 'memoize' macro makes sure only one query is issued to find the user
+  memoize def current_user? : User?
+    auth_token.try do |value|
+      user_from_auth_token(value)
+    end
+  end
+
+  private def auth_token : String?
+    bearer_token || token_param
+  end
+
+  private def bearer_token : String?
+    context.request.headers["Authorization"]?
+      .try(&.gsub("Bearer", ""))
+      .try(&.strip)
+  end
+
+  private def token_param : String?
+    params.get?(:auth_token)
+  end
+
+  private def user_from_auth_token(token : String) : User?
+    UserToken.decode_user_id(token).try do |user_id|
+      UserQuery.new.id(user_id).first?
+    end
+  end
+end