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https://github.com/0xFEEDC0DE64/arduino-esp32.git
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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/**
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* base64.cpp
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*
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* Created on: 09.12.2015
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*
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* Copyright (c) 2015 Markus Sattler. All rights reserved.
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* This file is part of the ESP31B core for Arduino.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "Arduino.h"
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extern "C" {
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#include "libb64/cdecode.h"
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#include "libb64/cencode.h"
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}
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#include "base64.h"
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/**
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* convert input data to base64
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* @param data uint8_t *
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* @param length size_t
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* @return String
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*/
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String base64::encode(uint8_t * data, size_t length)
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{
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// base64 needs more size then the source data
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size_t size = ((length * 1.6f) + 1);
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char * buffer = (char *) malloc(size);
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if(buffer) {
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base64_encodestate _state;
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base64_init_encodestate(&_state);
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int len = base64_encode_block((const char *) &data[0], length, &buffer[0], &_state);
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len = base64_encode_blockend((buffer + len), &_state);
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String base64 = String(buffer);
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free(buffer);
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return base64;
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}
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return String("-FAIL-");
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}
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/**
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* convert input data to base64
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* @param text String
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* @return String
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*/
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String base64::encode(String text)
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{
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return base64::encode((uint8_t *) text.c_str(), text.length());
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}
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