aria2/src/HttpHeader.cc

104 lines
3.5 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "HttpHeader.h"
#include "Util.h"
void HttpHeader::put(const string& name, const string& value) {
multimap<string, string>::value_type vt(Util::toLower(name), value);
table.insert(vt);
}
bool HttpHeader::defined(const string& name) const {
return table.count(Util::toLower(name)) >= 1;
}
string HttpHeader::getFirst(const string& name) const {
multimap<string, string>::const_iterator itr = table.find(Util::toLower(name));
if(itr == table.end()) {
return "";
} else {
return (*itr).second;
}
}
Strings HttpHeader::get(const string& name) const {
Strings v;
for(multimap<string, string>::const_iterator itr = table.find(Util::toLower(name)); itr != table.end(); itr++) {
v.push_back((*itr).second);
}
return v;
}
int32_t HttpHeader::getFirstAsInt(const string& name) const {
return getFirstAsLLInt(name);
}
int64_t HttpHeader::getFirstAsLLInt(const string& name) const {
string value = getFirst(name);
if(value == "") {
return 0;
} else {
return strtoll(value.c_str(), 0, 10);
}
}
RangeHandle HttpHeader::getRange() const
{
string rangeStr = getFirst("Content-Range");
if(rangeStr == "") {
string contentLengthStr = getFirst("Content-Length");
if(contentLengthStr == "") {
return new Range(0, 0, 0);
} else {
int64_t contentLength = strtoll(contentLengthStr.c_str(), 0, 10);
return new Range(0, contentLength-1, contentLength);
}
}
string::size_type rangeSpecIndex = rangeStr.find("bytes ");
if(rangeSpecIndex == string::npos) {
return new Range(0, 0, 0);
}
pair<string, string> rangePair;
Util::split(rangePair, rangeStr.substr(rangeSpecIndex+6), '/');
pair<string, string> startEndBytePair;
Util::split(startEndBytePair, rangePair.first, '-');
int64_t startByte = STRTOLL(startEndBytePair.first.c_str());
int64_t endByte = STRTOLL(startEndBytePair.second.c_str());
int64_t entityLength = STRTOLL(rangePair.second.c_str());
return new Range(startByte, endByte, entityLength);
}