Jonathan SwobodaandClaude Opus 4.6
308e8e78cd
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#pragma once
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#include <cinttypes>
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#include <cstdio>
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#include <ctime>
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#include "esphome/core/component.h"
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#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
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#include "esphome/components/text_sensor/text_sensor.h"
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#ifdef USE_ESP32
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namespace esphome {
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namespace ble_scanner {
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class BLEScanner : public text_sensor::TextSensor, public esp32_ble_tracker::ESPBTDeviceListener, public Component {
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public:
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bool parse_device(const esp32_ble_tracker::ESPBTDevice &device) override {
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char addr_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
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// Escape special characters in the device name for valid JSON
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const char *name = device.get_name().c_str();
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char escaped_name[128];
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size_t pos = 0;
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for (; *name != '\0' && pos < sizeof(escaped_name) - 7; name++) {
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uint8_t c = static_cast<uint8_t>(*name);
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if (c == '"' || c == '\\') {
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escaped_name[pos++] = '\\';
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escaped_name[pos++] = c;
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} else if (c < 0x20) {
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pos += snprintf(escaped_name + pos, sizeof(escaped_name) - pos, "\\u%04x", c);
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} else {
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escaped_name[pos++] = c;
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}
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}
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escaped_name[pos] = '\0';
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char buf[256];
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snprintf(buf, sizeof(buf), "{\"timestamp\":%" PRId64 ",\"address\":\"%s\",\"rssi\":%d,\"name\":\"%s\"}",
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static_cast<int64_t>(::time(nullptr)), device.address_str_to(addr_buf), device.get_rssi(), escaped_name);
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this->publish_state(buf);
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return true;
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}
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void dump_config() override;
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};
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} // namespace ble_scanner
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} // namespace esphome
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#endif
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