mirror of
https://github.com/esphome/esphome.git
synced 2025-09-22 13:12:22 +01:00
235 lines
8.2 KiB
C++
235 lines
8.2 KiB
C++
#include "esphome/core/defines.h"
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#ifdef USE_MDNS
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#include "esphome/core/application.h"
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#include "esphome/core/log.h"
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#include "esphome/core/version.h"
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#include "mdns_component.h"
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#ifdef USE_ESP8266
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#include <pgmspace.h>
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// Macro to define strings in PROGMEM on ESP8266, regular memory on other platforms
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#define MDNS_STATIC_CONST_CHAR(name, value) static const char name[] PROGMEM = value
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// Helper to get string from PROGMEM - returns a temporary std::string
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// Only define this function if we have services that will use it
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#if defined(USE_API) || defined(USE_PROMETHEUS) || defined(USE_WEBSERVER) || defined(USE_MDNS_EXTRA_SERVICES)
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static std::string mdns_string_p(const char *src) {
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char buf[64];
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strncpy_P(buf, src, sizeof(buf) - 1);
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buf[sizeof(buf) - 1] = '\0';
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return std::string(buf);
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}
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#define MDNS_STR(name) mdns_string_p(name)
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#else
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// If no services are configured, we still need the fallback service but it uses string literals
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#define MDNS_STR(name) std::string(name)
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#endif
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#else
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// On non-ESP8266 platforms, use regular const char*
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#define MDNS_STATIC_CONST_CHAR(name, value) static constexpr const char *name = value
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#define MDNS_STR(name) name
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#endif
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#ifdef USE_API
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#include "esphome/components/api/api_server.h"
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#endif
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#ifdef USE_DASHBOARD_IMPORT
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#include "esphome/components/dashboard_import/dashboard_import.h"
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#endif
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namespace esphome {
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namespace mdns {
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static const char *const TAG = "mdns";
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#ifndef USE_WEBSERVER_PORT
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#define USE_WEBSERVER_PORT 80 // NOLINT
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#endif
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// Define all constant strings using the macro
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MDNS_STATIC_CONST_CHAR(SERVICE_ESPHOMELIB, "_esphomelib");
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MDNS_STATIC_CONST_CHAR(SERVICE_TCP, "_tcp");
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MDNS_STATIC_CONST_CHAR(SERVICE_PROMETHEUS, "_prometheus-http");
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MDNS_STATIC_CONST_CHAR(SERVICE_HTTP, "_http");
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MDNS_STATIC_CONST_CHAR(TXT_FRIENDLY_NAME, "friendly_name");
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MDNS_STATIC_CONST_CHAR(TXT_VERSION, "version");
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MDNS_STATIC_CONST_CHAR(TXT_MAC, "mac");
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MDNS_STATIC_CONST_CHAR(TXT_PLATFORM, "platform");
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MDNS_STATIC_CONST_CHAR(TXT_BOARD, "board");
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MDNS_STATIC_CONST_CHAR(TXT_NETWORK, "network");
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MDNS_STATIC_CONST_CHAR(TXT_API_ENCRYPTION, "api_encryption");
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MDNS_STATIC_CONST_CHAR(TXT_API_ENCRYPTION_SUPPORTED, "api_encryption_supported");
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MDNS_STATIC_CONST_CHAR(TXT_PROJECT_NAME, "project_name");
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MDNS_STATIC_CONST_CHAR(TXT_PROJECT_VERSION, "project_version");
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MDNS_STATIC_CONST_CHAR(TXT_PACKAGE_IMPORT_URL, "package_import_url");
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MDNS_STATIC_CONST_CHAR(PLATFORM_ESP8266, "ESP8266");
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MDNS_STATIC_CONST_CHAR(PLATFORM_ESP32, "ESP32");
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MDNS_STATIC_CONST_CHAR(PLATFORM_RP2040, "RP2040");
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MDNS_STATIC_CONST_CHAR(NETWORK_WIFI, "wifi");
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MDNS_STATIC_CONST_CHAR(NETWORK_ETHERNET, "ethernet");
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MDNS_STATIC_CONST_CHAR(NETWORK_THREAD, "thread");
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void MDNSComponent::compile_records_() {
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this->hostname_ = App.get_name();
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// Calculate exact capacity needed for services vector
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size_t services_count = 0;
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#ifdef USE_API
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if (api::global_api_server != nullptr) {
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services_count++;
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}
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#endif
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#ifdef USE_PROMETHEUS
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services_count++;
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#endif
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#ifdef USE_WEBSERVER
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services_count++;
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#endif
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#ifdef USE_MDNS_EXTRA_SERVICES
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services_count += this->services_extra_.size();
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#endif
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// Reserve for fallback service if needed
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if (services_count == 0) {
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services_count = 1;
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}
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this->services_.reserve(services_count);
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#ifdef USE_API
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if (api::global_api_server != nullptr) {
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this->services_.emplace_back();
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auto &service = this->services_.back();
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service.service_type = MDNS_STR(SERVICE_ESPHOMELIB);
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service.proto = MDNS_STR(SERVICE_TCP);
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service.port = api::global_api_server->get_port();
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const std::string &friendly_name = App.get_friendly_name();
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bool friendly_name_empty = friendly_name.empty();
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// Calculate exact capacity for txt_records
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size_t txt_count = 3; // version, mac, board (always present)
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if (!friendly_name_empty) {
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txt_count++; // friendly_name
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}
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#if defined(USE_ESP8266) || defined(USE_ESP32) || defined(USE_RP2040) || defined(USE_LIBRETINY)
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txt_count++; // platform
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#endif
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#if defined(USE_WIFI) || defined(USE_ETHERNET) || defined(USE_OPENTHREAD)
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txt_count++; // network
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#endif
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#ifdef USE_API_NOISE
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txt_count++; // api_encryption or api_encryption_supported
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#endif
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#ifdef ESPHOME_PROJECT_NAME
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txt_count += 2; // project_name and project_version
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#endif
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#ifdef USE_DASHBOARD_IMPORT
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txt_count++; // package_import_url
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#endif
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auto &txt_records = service.txt_records;
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txt_records.reserve(txt_count);
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if (!friendly_name_empty) {
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txt_records.push_back({MDNS_STR(TXT_FRIENDLY_NAME), friendly_name});
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}
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txt_records.push_back({MDNS_STR(TXT_VERSION), ESPHOME_VERSION});
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txt_records.push_back({MDNS_STR(TXT_MAC), get_mac_address()});
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#ifdef USE_ESP8266
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txt_records.push_back({MDNS_STR(TXT_PLATFORM), MDNS_STR(PLATFORM_ESP8266)});
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#elif defined(USE_ESP32)
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txt_records.push_back({MDNS_STR(TXT_PLATFORM), MDNS_STR(PLATFORM_ESP32)});
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#elif defined(USE_RP2040)
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txt_records.push_back({MDNS_STR(TXT_PLATFORM), MDNS_STR(PLATFORM_RP2040)});
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#elif defined(USE_LIBRETINY)
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txt_records.emplace_back(MDNSTXTRecord{"platform", lt_cpu_get_model_name()});
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#endif
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txt_records.push_back({MDNS_STR(TXT_BOARD), ESPHOME_BOARD});
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#if defined(USE_WIFI)
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txt_records.push_back({MDNS_STR(TXT_NETWORK), MDNS_STR(NETWORK_WIFI)});
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#elif defined(USE_ETHERNET)
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txt_records.push_back({MDNS_STR(TXT_NETWORK), MDNS_STR(NETWORK_ETHERNET)});
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#elif defined(USE_OPENTHREAD)
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txt_records.push_back({MDNS_STR(TXT_NETWORK), MDNS_STR(NETWORK_THREAD)});
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#endif
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#ifdef USE_API_NOISE
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MDNS_STATIC_CONST_CHAR(NOISE_ENCRYPTION, "Noise_NNpsk0_25519_ChaChaPoly_SHA256");
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if (api::global_api_server->get_noise_ctx()->has_psk()) {
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txt_records.push_back({MDNS_STR(TXT_API_ENCRYPTION), MDNS_STR(NOISE_ENCRYPTION)});
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} else {
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txt_records.push_back({MDNS_STR(TXT_API_ENCRYPTION_SUPPORTED), MDNS_STR(NOISE_ENCRYPTION)});
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}
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#endif
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#ifdef ESPHOME_PROJECT_NAME
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txt_records.push_back({MDNS_STR(TXT_PROJECT_NAME), ESPHOME_PROJECT_NAME});
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txt_records.push_back({MDNS_STR(TXT_PROJECT_VERSION), ESPHOME_PROJECT_VERSION});
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#endif // ESPHOME_PROJECT_NAME
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#ifdef USE_DASHBOARD_IMPORT
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txt_records.push_back({MDNS_STR(TXT_PACKAGE_IMPORT_URL), dashboard_import::get_package_import_url()});
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#endif
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}
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#endif // USE_API
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#ifdef USE_PROMETHEUS
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this->services_.emplace_back();
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auto &prom_service = this->services_.back();
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prom_service.service_type = MDNS_STR(SERVICE_PROMETHEUS);
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prom_service.proto = MDNS_STR(SERVICE_TCP);
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prom_service.port = USE_WEBSERVER_PORT;
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#endif
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#ifdef USE_WEBSERVER
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this->services_.emplace_back();
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auto &web_service = this->services_.back();
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web_service.service_type = MDNS_STR(SERVICE_HTTP);
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web_service.proto = MDNS_STR(SERVICE_TCP);
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web_service.port = USE_WEBSERVER_PORT;
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#endif
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#ifdef USE_MDNS_EXTRA_SERVICES
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this->services_.insert(this->services_.end(), this->services_extra_.begin(), this->services_extra_.end());
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#endif
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#if !defined(USE_API) && !defined(USE_PROMETHEUS) && !defined(USE_WEBSERVER) && !defined(USE_MDNS_EXTRA_SERVICES)
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// Publish "http" service if not using native API or any other services
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// This is just to have *some* mDNS service so that .local resolution works
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this->services_.emplace_back();
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auto &fallback_service = this->services_.back();
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fallback_service.service_type = "_http";
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fallback_service.proto = "_tcp";
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fallback_service.port = USE_WEBSERVER_PORT;
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fallback_service.txt_records.emplace_back(MDNSTXTRecord{"version", ESPHOME_VERSION});
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#endif
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}
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void MDNSComponent::dump_config() {
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ESP_LOGCONFIG(TAG,
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"mDNS:\n"
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" Hostname: %s",
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this->hostname_.c_str());
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#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
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ESP_LOGV(TAG, " Services:");
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for (const auto &service : this->services_) {
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ESP_LOGV(TAG, " - %s, %s, %d", service.service_type.c_str(), service.proto.c_str(),
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const_cast<TemplatableValue<uint16_t> &>(service.port).value());
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for (const auto &record : service.txt_records) {
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ESP_LOGV(TAG, " TXT: %s = %s", record.key.c_str(),
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const_cast<TemplatableValue<std::string> &>(record.value).value().c_str());
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}
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}
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#endif
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}
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std::vector<MDNSService> MDNSComponent::get_services() { return this->services_; }
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} // namespace mdns
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} // namespace esphome
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#endif
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