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40 lines
1 KiB
C++
40 lines
1 KiB
C++
#include "ndef_record_text.h"
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#include "ndef_record.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_text";
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NdefRecordText::NdefRecordText(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 language_code_length = payload[0] & 0b00111111; // Todo, make use of encoding bit?
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this->language_code_ = std::string(payload.begin() + 1, payload.begin() + 1 + language_code_length);
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this->text_ = std::string(payload.begin() + 1 + language_code_length, payload.end());
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this->tnf_ = TNF_WELL_KNOWN;
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this->type_ = "T";
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}
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std::vector<uint8_t> NdefRecordText::get_encoded_payload() {
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std::vector<uint8_t> data;
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uint8_t flag_byte = this->language_code_.length() & 0b00111111; // UTF8 assumed
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data.push_back(flag_byte);
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data.insert(data.end(), this->language_code_.begin(), this->language_code_.end());
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data.insert(data.end(), this->text_.begin(), this->text_.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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