135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2015 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "TimeA2.h"
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#include <cstring>
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#include "util.h"
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#include "array_fun.h"
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namespace aria2 {
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Time::Time() : tp_(Clock::now()), good_(true) {}
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Time::Time(time_t t) : tp_(Clock::from_time_t(t)), good_(true) {}
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void Time::reset()
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{
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tp_ = Clock::now();
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good_ = true;
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}
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Time::Clock::duration Time::difference() const { return Clock::now() - tp_; }
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Time::Clock::duration Time::difference(const Time& time) const
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{
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return time.tp_ - tp_;
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}
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void Time::setTimeFromEpoch(time_t t)
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{
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tp_ = Clock::from_time_t(t);
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good_ = true;
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}
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std::string Time::toHTTPDate() const
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{
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char buf[32];
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time_t t = getTimeFromEpoch();
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struct tm* tms = gmtime(&t); // returned struct is statically allocated.
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size_t r = strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S GMT", tms);
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return std::string(&buf[0], &buf[r]);
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}
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Time Time::parse(const std::string& datetime, const std::string& format)
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{
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struct tm tm;
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memset(&tm, 0, sizeof(tm));
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char* r = strptime(datetime.c_str(), format.c_str(), &tm);
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if (r != datetime.c_str() + datetime.size()) {
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return Time::null();
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}
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time_t thetime = timegm(&tm);
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if (thetime == -1) {
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if (tm.tm_year >= 2038 - 1900) {
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thetime = INT32_MAX;
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}
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}
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return Time(thetime);
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}
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Time Time::parseRFC1123(const std::string& datetime)
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{
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return parse(datetime, "%a, %d %b %Y %H:%M:%S GMT");
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}
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Time Time::parseRFC1123Alt(const std::string& datetime)
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{
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return parse(datetime, "%a, %d %b %Y %H:%M:%S +0000");
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}
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Time Time::parseRFC850(const std::string& datetime)
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{
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return parse(datetime, "%a, %d-%b-%y %H:%M:%S GMT");
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}
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Time Time::parseRFC850Ext(const std::string& datetime)
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{
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return parse(datetime, "%a, %d-%b-%Y %H:%M:%S GMT");
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}
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Time Time::parseAsctime(const std::string& datetime)
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{
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return parse(datetime, "%a %b %d %H:%M:%S %Y");
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}
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Time Time::parseHTTPDate(const std::string& datetime)
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{
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Time (*funcs[])(const std::string&) = {
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&parseRFC1123, &parseRFC1123Alt, &parseRFC850,
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&parseAsctime, &parseRFC850Ext,
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};
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for (auto func : funcs) {
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Time t = func(datetime);
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if (t.good()) {
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return t;
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}
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}
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return Time::null();
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}
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} // namespace aria2
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