From 9ac38ff8d025f4bf9739721dcf3695d67f09fc6d Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Fri, 25 Jul 2025 13:25:46 -1000
Subject: [PATCH] [api] Add missing USE_API_PASSWORD guards to reduce flash
 usage

---
 esphome/components/api/api_connection.cpp | 2 ++
 esphome/components/api/api_connection.h   | 2 ++
 esphome/components/api/proto.h            | 4 ++++
 3 files changed, 8 insertions(+)

diff --git a/esphome/components/api/api_connection.cpp b/esphome/components/api/api_connection.cpp
index 76713c54c8..58f10464c3 100644
--- a/esphome/components/api/api_connection.cpp
+++ b/esphome/components/api/api_connection.cpp
@@ -1590,10 +1590,12 @@ bool APIConnection::send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) {
   // Do not set last_traffic_ on send
   return true;
 }
+#ifdef USE_API_PASSWORD
 void APIConnection::on_unauthenticated_access() {
   this->on_fatal_error();
   ESP_LOGD(TAG, "%s access without authentication", this->get_client_combined_info().c_str());
 }
+#endif
 void APIConnection::on_no_setup_connection() {
   this->on_fatal_error();
   ESP_LOGD(TAG, "%s access without full connection", this->get_client_combined_info().c_str());
diff --git a/esphome/components/api/api_connection.h b/esphome/components/api/api_connection.h
index 6214d5ba82..2c6074c046 100644
--- a/esphome/components/api/api_connection.h
+++ b/esphome/components/api/api_connection.h
@@ -228,7 +228,9 @@ class APIConnection : public APIServerConnection {
   }
   uint8_t get_log_subscription_level() const { return this->flags_.log_subscription; }
   void on_fatal_error() override;
+#ifdef USE_API_PASSWORD
   void on_unauthenticated_access() override;
+#endif
   void on_no_setup_connection() override;
   ProtoWriteBuffer create_buffer(uint32_t reserve_size) override {
     // FIXME: ensure no recursive writes can happen
diff --git a/esphome/components/api/proto.h b/esphome/components/api/proto.h
index 44f9716516..7db4b65d55 100644
--- a/esphome/components/api/proto.h
+++ b/esphome/components/api/proto.h
@@ -860,7 +860,9 @@ class ProtoService {
   virtual bool is_authenticated() = 0;
   virtual bool is_connection_setup() = 0;
   virtual void on_fatal_error() = 0;
+#ifdef USE_API_PASSWORD
   virtual void on_unauthenticated_access() = 0;
+#endif
   virtual void on_no_setup_connection() = 0;
   /**
    * Create a buffer with a reserved size.
@@ -901,10 +903,12 @@ class ProtoService {
     if (!this->check_connection_setup_()) {
       return false;
     }
+#ifdef USE_API_PASSWORD
     if (!this->is_authenticated()) {
       this->on_unauthenticated_access();
       return false;
     }
+#endif
     return true;
   }
 };