esphome/esphome/components/esp32_improv/esp32_improv_component.cpp

282 lines
9.7 KiB
C++

#include "esp32_improv_component.h"
#include "esphome/components/esp32_ble/ble.h"
#include "esphome/components/esp32_ble_server/ble_2902.h"
#include "esphome/core/application.h"
#include "esphome/core/log.h"
#ifdef ARDUINO_ARCH_ESP32
namespace esphome {
namespace esp32_improv {
static const char *const TAG = "esp32_improv.component";
ESP32ImprovComponent::ESP32ImprovComponent() { global_improv_component = this; }
void ESP32ImprovComponent::setup() {
this->service_ = global_ble_server->create_service(improv::SERVICE_UUID, true);
this->setup_characteristics();
}
void ESP32ImprovComponent::setup_characteristics() {
this->status_ = this->service_->create_characteristic(
improv::STATUS_UUID, BLECharacteristic::PROPERTY_READ | BLECharacteristic::PROPERTY_NOTIFY);
BLEDescriptor *status_descriptor = new BLE2902();
this->status_->add_descriptor(status_descriptor);
this->error_ = this->service_->create_characteristic(
improv::ERROR_UUID, BLECharacteristic::PROPERTY_READ | BLECharacteristic::PROPERTY_NOTIFY);
BLEDescriptor *error_descriptor = new BLE2902();
this->error_->add_descriptor(error_descriptor);
this->rpc_ = this->service_->create_characteristic(improv::RPC_COMMAND_UUID, BLECharacteristic::PROPERTY_WRITE);
this->rpc_->on_write([this](const std::vector<uint8_t> &data) {
if (data.size() > 0) {
this->incoming_data_.insert(this->incoming_data_.end(), data.begin(), data.end());
}
});
BLEDescriptor *rpc_descriptor = new BLE2902();
this->rpc_->add_descriptor(rpc_descriptor);
this->rpc_response_ = this->service_->create_characteristic(
improv::RPC_RESULT_UUID, BLECharacteristic::PROPERTY_READ | BLECharacteristic::PROPERTY_NOTIFY);
BLEDescriptor *rpc_response_descriptor = new BLE2902();
this->rpc_response_->add_descriptor(rpc_response_descriptor);
this->capabilities_ =
this->service_->create_characteristic(improv::CAPABILITIES_UUID, BLECharacteristic::PROPERTY_READ);
BLEDescriptor *capabilities_descriptor = new BLE2902();
this->capabilities_->add_descriptor(capabilities_descriptor);
uint8_t capabilities = 0x00;
if (this->status_indicator_ != nullptr)
capabilities |= improv::CAPABILITY_IDENTIFY;
this->capabilities_->set_value(capabilities);
this->setup_complete_ = true;
}
void ESP32ImprovComponent::loop() {
if (this->incoming_data_.size() > 0)
this->process_incoming_data_();
uint32_t now = millis();
switch (this->state_) {
case improv::STATE_STOPPED:
if (this->status_indicator_ != nullptr)
this->status_indicator_->turn_off();
if (this->service_->is_created() && this->should_start_ && this->setup_complete_) {
if (this->service_->is_running()) {
esp32_ble::global_ble->get_advertising()->start();
this->set_state_(improv::STATE_AWAITING_AUTHORIZATION);
this->set_error_(improv::ERROR_NONE);
this->should_start_ = false;
ESP_LOGD(TAG, "Service started!");
} else {
this->service_->start();
}
}
break;
case improv::STATE_AWAITING_AUTHORIZATION: {
if (this->authorizer_ == nullptr || this->authorizer_->state) {
this->set_state_(improv::STATE_AUTHORIZED);
this->authorized_start_ = now;
} else {
if (this->status_indicator_ != nullptr) {
if (!this->check_identify_())
this->status_indicator_->turn_on();
}
}
break;
}
case improv::STATE_AUTHORIZED: {
if (this->authorizer_ != nullptr) {
if (now - this->authorized_start_ > this->authorized_duration_) {
ESP_LOGD(TAG, "Authorization timeout");
this->set_state_(improv::STATE_AWAITING_AUTHORIZATION);
return;
}
}
if (this->status_indicator_ != nullptr) {
if (!this->check_identify_()) {
if ((now % 1000) < 500) {
this->status_indicator_->turn_on();
} else {
this->status_indicator_->turn_off();
}
}
}
break;
}
case improv::STATE_PROVISIONING: {
if (this->status_indicator_ != nullptr) {
if ((now % 200) < 100) {
this->status_indicator_->turn_on();
} else {
this->status_indicator_->turn_off();
}
}
if (wifi::global_wifi_component->is_connected()) {
wifi::global_wifi_component->save_wifi_sta(this->connecting_sta_.get_ssid(),
this->connecting_sta_.get_password());
this->connecting_sta_ = {};
this->cancel_timeout("wifi-connect-timeout");
this->set_state_(improv::STATE_PROVISIONED);
std::string url = "https://my.home-assistant.io/redirect/config_flow_start?domain=esphome";
std::vector<uint8_t> data = improv::build_rpc_response(improv::WIFI_SETTINGS, {url});
this->send_response(data);
this->set_timeout("end-service", 1000, [this] {
this->service_->stop();
this->set_state_(improv::STATE_STOPPED);
});
}
break;
}
case improv::STATE_PROVISIONED: {
this->incoming_data_.clear();
if (this->status_indicator_ != nullptr)
this->status_indicator_->turn_off();
break;
}
}
}
bool ESP32ImprovComponent::check_identify_() {
uint32_t now = millis();
bool identify = this->identify_start_ != 0 && now - this->identify_start_ <= this->identify_duration_;
if (identify) {
uint32_t time = now % 1000;
if (time < 600 && time % 200 < 100) {
this->status_indicator_->turn_on();
} else {
this->status_indicator_->turn_off();
}
}
return identify;
}
void ESP32ImprovComponent::set_state_(improv::State state) {
ESP_LOGV(TAG, "Setting state: %d", state);
this->state_ = state;
if (this->status_->get_value().size() == 0 || this->status_->get_value()[0] != state) {
uint8_t data[1]{state};
this->status_->set_value(data, 1);
if (state != improv::STATE_STOPPED)
this->status_->notify();
}
}
void ESP32ImprovComponent::set_error_(improv::Error error) {
if (error != improv::ERROR_NONE)
ESP_LOGE(TAG, "Error: %d", error);
if (this->error_->get_value().size() == 0 || this->error_->get_value()[0] != error) {
uint8_t data[1]{error};
this->error_->set_value(data, 1);
if (this->state_ != improv::STATE_STOPPED)
this->error_->notify();
}
}
void ESP32ImprovComponent::send_response(std::vector<uint8_t> &response) {
this->rpc_response_->set_value(response);
if (this->state_ != improv::STATE_STOPPED)
this->rpc_response_->notify();
}
void ESP32ImprovComponent::start() {
if (this->state_ != improv::STATE_STOPPED)
return;
ESP_LOGD(TAG, "Setting Improv to start");
this->should_start_ = true;
}
void ESP32ImprovComponent::stop() {
this->set_timeout("end-service", 1000, [this] {
this->service_->stop();
this->set_state_(improv::STATE_STOPPED);
});
}
float ESP32ImprovComponent::get_setup_priority() const { return setup_priority::AFTER_BLUETOOTH; }
void ESP32ImprovComponent::dump_config() {
ESP_LOGCONFIG(TAG, "ESP32 Improv:");
LOG_BINARY_SENSOR(" ", "Authorizer", this->authorizer_);
ESP_LOGCONFIG(TAG, " Status Indicator: '%s'", YESNO(this->status_indicator_ != nullptr));
}
void ESP32ImprovComponent::process_incoming_data_() {
uint8_t length = this->incoming_data_[1];
ESP_LOGD(TAG, "Processing bytes - %s", hexencode(this->incoming_data_).c_str());
if (this->incoming_data_.size() - 3 == length) {
this->set_error_(improv::ERROR_NONE);
improv::ImprovCommand command = improv::parse_improv_data(this->incoming_data_);
switch (command.command) {
case improv::BAD_CHECKSUM:
ESP_LOGW(TAG, "Error decoding Improv payload");
this->set_error_(improv::ERROR_INVALID_RPC);
this->incoming_data_.clear();
break;
case improv::WIFI_SETTINGS: {
if (this->state_ != improv::STATE_AUTHORIZED) {
ESP_LOGW(TAG, "Settings received, but not authorized");
this->set_error_(improv::ERROR_NOT_AUTHORIZED);
this->incoming_data_.clear();
return;
}
wifi::WiFiAP sta{};
sta.set_ssid(command.ssid);
sta.set_password(command.password);
this->connecting_sta_ = sta;
wifi::global_wifi_component->set_sta(sta);
wifi::global_wifi_component->start_scanning();
this->set_state_(improv::STATE_PROVISIONING);
ESP_LOGD(TAG, "Received Improv wifi settings ssid=%s, password=" LOG_SECRET("%s"), command.ssid.c_str(),
command.password.c_str());
auto f = std::bind(&ESP32ImprovComponent::on_wifi_connect_timeout_, this);
this->set_timeout("wifi-connect-timeout", 30000, f);
this->incoming_data_.clear();
break;
}
case improv::IDENTIFY:
this->incoming_data_.clear();
this->identify_start_ = millis();
break;
default:
ESP_LOGW(TAG, "Unknown Improv payload");
this->set_error_(improv::ERROR_UNKNOWN_RPC);
this->incoming_data_.clear();
}
} else if (this->incoming_data_.size() - 2 > length) {
ESP_LOGV(TAG, "Too much data came in, or malformed resetting buffer...");
this->incoming_data_.clear();
} else {
ESP_LOGV(TAG, "Waiting for split data packets...");
}
}
void ESP32ImprovComponent::on_wifi_connect_timeout_() {
this->set_error_(improv::ERROR_UNABLE_TO_CONNECT);
this->set_state_(improv::STATE_AUTHORIZED);
if (this->authorizer_ != nullptr)
this->authorized_start_ = millis();
ESP_LOGW(TAG, "Timed out trying to connect to given WiFi network");
wifi::global_wifi_component->clear_sta();
}
void ESP32ImprovComponent::on_client_disconnect() { this->set_error_(improv::ERROR_NONE); };
ESP32ImprovComponent *global_improv_component = nullptr;
} // namespace esp32_improv
} // namespace esphome
#endif