esp-nimble-cpp/examples/NimBLE_server_get_client_name/main/main.cpp
h2zero 031ba8f437 Remove const from NimBLEConnInfo references in callbacks.
The use of const is a unnecessary breaking change as there is nothing that can be changed in the class.
2024-08-11 16:17:04 -06:00

83 lines
3.2 KiB
C++

/** NimBLE_server_get_client_name
*
* Demonstrates 2 ways for the server to read the device name from the connected client.
*
* Created: on June 24 2024
* Author: H2zero
*
*/
#include <NimBLEDevice.h>
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
#define ENC_CHARACTERISTIC_UUID "9551f35b-8d91-42e4-8f7e-1358dfe272dc"
NimBLEServer* pServer;
class ServerCallbacks : public NimBLEServerCallbacks {
// Same as before but now includes the name parameter
void onConnect(NimBLEServer* pServer, NimBLEConnInfo& connInfo, std::string& name) override {
printf("Client address: %s Name: %s\n", connInfo.getAddress().toString().c_str(), name.c_str());
}
// Same as before but now includes the name parameter
void onAuthenticationComplete(NimBLEConnInfo& connInfo, const std::string& name) override {
if (!connInfo.isEncrypted()) {
NimBLEDevice::getServer()->disconnect(connInfo.getConnHandle());
printf("Encrypt connection failed - disconnecting client\n");
return;
}
printf("Encrypted Client address: %s Name: %s\n", connInfo.getAddress().toString().c_str(), name.c_str());
}
};
extern "C" void app_main(void) {
printf("Starting BLE Server!\n");
NimBLEDevice::init("Connect to me!");
NimBLEDevice::setSecurityAuth(true, false, true); // Enable bonding to see full name on phones.
pServer = NimBLEDevice::createServer();
NimBLEService* pService = pServer->createService(SERVICE_UUID);
NimBLECharacteristic* pCharacteristic =
pService->createCharacteristic(CHARACTERISTIC_UUID, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE);
pCharacteristic->setValue("Hello World says NimBLE!");
NimBLECharacteristic* pEncCharacteristic = pService->createCharacteristic(
ENC_CHARACTERISTIC_UUID,
(NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::READ_ENC | NIMBLE_PROPERTY::WRITE_ENC));
pEncCharacteristic->setValue("Hello World says NimBLE Encrypted");
pService->start();
pServer->setCallbacks(new ServerCallbacks());
pServer->getPeerNameOnConnect(true); // Setting this will enable the onConnect callback that provides the name.
BLEAdvertising* pAdvertising = NimBLEDevice::getAdvertising();
pAdvertising->addServiceUUID(SERVICE_UUID);
pAdvertising->setScanResponse(true);
pAdvertising->start();
printf("Advertising started, connect with your phone.\n");
while (true) {
auto clientCount = pServer->getConnectedCount();
if (clientCount) {
printf("Connected clients:\n");
for (auto i = 0; i < clientCount; ++i) {
NimBLEConnInfo peerInfo = pServer->getPeerInfo(i);
printf("Client address: %s Name: %s\n", peerInfo.getAddress().toString().c_str(),
// This function blocks until the name is retrieved, so cannot be used in callback functions.
pServer->getPeerName(peerInfo).c_str());
}
}
vTaskDelay(pdMS_TO_TICKS(10000));
}
}