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49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
#include "ndef_record_uri.h"
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namespace esphome {
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namespace nfc {
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static const char *const TAG = "nfc.ndef_record_uri";
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NdefRecordUri::NdefRecordUri(const std::vector<uint8_t> &payload) {
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if (payload.empty()) {
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ESP_LOGE(TAG, "Record payload too short");
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return;
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}
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uint8_t payload_identifier = payload[0]; // First byte of payload is prefix code
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std::string uri(payload.begin() + 1, payload.end());
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if (payload_identifier > 0x00 && payload_identifier <= PAYLOAD_IDENTIFIERS_COUNT) {
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uri.insert(0, PAYLOAD_IDENTIFIERS[payload_identifier]);
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}
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this->tnf_ = TNF_WELL_KNOWN;
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this->type_ = "U";
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this->set_uri(uri);
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}
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std::vector<uint8_t> NdefRecordUri::get_encoded_payload() {
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std::vector<uint8_t> data;
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uint8_t payload_prefix = 0x00;
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uint8_t payload_prefix_length = 0x00;
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for (uint8_t i = 1; i < PAYLOAD_IDENTIFIERS_COUNT; i++) {
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std::string prefix = PAYLOAD_IDENTIFIERS[i];
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if (this->uri_.substr(0, prefix.length()).find(prefix) != std::string::npos) {
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payload_prefix = i;
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payload_prefix_length = prefix.length();
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break;
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}
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}
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data.push_back(payload_prefix);
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data.insert(data.end(), this->uri_.begin() + payload_prefix_length, this->uri_.end());
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return data;
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}
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} // namespace nfc
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} // namespace esphome
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