e581717bf3
* First stab ad simplyfing webserver auth and adding a handler. * Tweaks after testing against docs and latest Library tree * Add documentatin for callback handler * Bodge to allow things to compile without the dependencies * Remove dependency on sodium to make it compile with 4.4 * Fix hex conversion * Move some common HEX functions into a static HEX class, remove those from MD5 and add some examples. This allows for the cleanup of various to/from HEX routines elsewhere. * Remove some duplicated code * Add simplfiied HEXBuilder under MD5Bulder to CMakefile. * Update for 3.0.0 and QoL improvements * Remove examples that depend on external libraries * Skip H2 testing * Formatting improvements * Move builders examples to Utilities folder * Fix indentation * Add HashBuilder abstract class * Add SHA1Builder * Fix comment * Fix whitespace * Fix crashes and improve log messages * Fix indentation for webserver --------- Co-authored-by: Rodrigo Garcia <rodrigo.garcia@espressif.com> Co-authored-by: Lucas Saavedra Vaz <32426024+lucasssvaz@users.noreply.github.com>
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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Copyright (c) 2015 Hristo Gochkov. All rights reserved.
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This file is part of the esp32 core for Arduino environment.
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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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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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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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#include <Arduino.h>
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#include <HEXBuilder.h>
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static uint8_t hex_char_to_byte(uint8_t c)
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{
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return (c >= 'a' && c <= 'f') ? (c - ((uint8_t)'a' - 0xa)) :
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(c >= 'A' && c <= 'F') ? (c - ((uint8_t)'A' - 0xA)) :
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(c >= '0' && c<= '9') ? (c - (uint8_t)'0') : 0x10; // unknown char is 16
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}
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size_t HEXBuilder::hex2bytes(unsigned char * out, size_t maxlen, String &in) {
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return hex2bytes(out, maxlen, in.c_str());
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}
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size_t HEXBuilder::hex2bytes(unsigned char * out, size_t maxlen, const char * in) {
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size_t len = 0;
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for(;*in;in++) {
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uint8_t c = hex_char_to_byte(*in);
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// Silently skip anything unknown.
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if (c > 15)
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continue;
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if (len & 1) {
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if (len/2 < maxlen)
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out[len/2] |= c;
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} else {
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if (len/2 < maxlen)
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out[len/2] = c<<4;
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}
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len++;
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}
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return (len + 1)/2;
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}
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size_t HEXBuilder::bytes2hex(char * out, size_t maxlen, const unsigned char * in, size_t len) {
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for(size_t i = 0; i < len; i++) {
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if (i*2 + 1 < maxlen) {
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sprintf(out + (i * 2), "%02x", in[i]);
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}
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}
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return len * 2 + 1;
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}
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String HEXBuilder::bytes2hex(const unsigned char * in, size_t len) {
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size_t maxlen = len * 2 + 1;
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char * out = (char *) malloc(maxlen);
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if (!out) return String();
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bytes2hex(out, maxlen, in, len);
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String ret = String(out);
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free(out);
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return ret;
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}
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