103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
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/*
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* Spdylay - SPDY Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "util.h"
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#include <cstdio>
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namespace spdylay {
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namespace util {
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const std::string DEFAULT_STRIP_CHARSET("\r\n\t ");
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bool isAlpha(const char c)
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{
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return ('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z');
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}
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bool isDigit(const char c)
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{
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return '0' <= c && c <= '9';
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}
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bool isHexDigit(const char c)
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{
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return isDigit(c) || ('A' <= c && c <= 'F') || ('a' <= c && c <= 'f');
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}
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bool inRFC3986UnreservedChars(const char c)
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{
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static const char unreserved[] = { '-', '.', '_', '~' };
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return isAlpha(c) || isDigit(c) ||
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std::find(&unreserved[0], &unreserved[4], c) != &unreserved[4];
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}
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std::string percentEncode(const unsigned char* target, size_t len)
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{
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std::string dest;
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for(size_t i = 0; i < len; ++i) {
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if(inRFC3986UnreservedChars(target[i])) {
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dest += target[i];
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} else {
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char temp[4];
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snprintf(temp, sizeof(temp), "%%%02X", target[i]);
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dest.append(temp);
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//dest.append(fmt("%%%02X", target[i]));
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}
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}
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return dest;
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}
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std::string percentEncode(const std::string& target)
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{
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return percentEncode(reinterpret_cast<const unsigned char*>(target.c_str()),
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target.size());
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}
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std::string percentDecode
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(std::string::const_iterator first, std::string::const_iterator last)
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{
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std::string result;
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for(; first != last; ++first) {
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if(*first == '%') {
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if(first+1 != last && first+2 != last &&
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isHexDigit(*(first+1)) && isHexDigit(*(first+2))) {
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std::string numstr(first+1, first+3);
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result += strtol(numstr.c_str(), 0, 16);
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first += 2;
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} else {
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result += *first;
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}
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} else {
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result += *first;
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}
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}
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return result;
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}
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} // namespace util
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} // namespace spdylay
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