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/* @file urlencode.cc
* @brief URL encoding as described by RFC3986.
*/
/* Copyright (C) 2011,2014,2015,2016 Olly Betts
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <config.h>
#include "urlencode.h"
#include <cctype>
#include <cstring>
#include <string>
using namespace std;
void
url_encode_(string & res, const char * p, size_t len, const char * safe)
{
while (len--) {
unsigned char ch = *p++;
if (isalnum(ch) || strchr(safe, ch)) {
// Unreserved by RFC3986.
res += ch;
} else {
// RFC3986 says we "should" encode as upper case hex digits.
res += '%';
res += "0123456789ABCDEF"[ch >> 4];
res += "0123456789ABCDEF"[ch & 0x0f];
}
}
}
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