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/* <!-- 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 "HttpHeaderProcessor.h"
#include "HttpHeader.h"
#include "message.h"
#include "Util.h"
#include "DlRetryEx.h"
#include "DlAbortEx.h"
namespace aria2 {
HttpHeaderProcessor::HttpHeaderProcessor():_limit(4096) {}
HttpHeaderProcessor::~HttpHeaderProcessor() {}
void HttpHeaderProcessor::update(const unsigned char* data, size_t length)
{
checkHeaderLimit(length);
strm.write(reinterpret_cast<const char*>(data), length);
}
void HttpHeaderProcessor::update(const std::string& data)
{
checkHeaderLimit(data.size());
strm << data;
}
void HttpHeaderProcessor::checkHeaderLimit(size_t incomingLength)
{
strm.seekg(0, std::ios::end);
if((size_t)strm.tellg()+incomingLength > _limit) {
throw DlAbortEx("Too large http header");
}
}
bool HttpHeaderProcessor::eoh() const
{
std::string str = strm.str();
if(str.find("\r\n\r\n") == std::string::npos && str.find("\n\n") == std::string::npos) {
return false;
} else {
return true;
}
}
size_t HttpHeaderProcessor::getPutBackDataLength() const
{
const std::string& str = strm.str();
std::string::size_type delimpos = std::string::npos;
if((delimpos = str.find("\r\n\r\n")) != std::string::npos) {
return str.size()-(delimpos+4);
} else if((delimpos = str.find("\n\n")) != std::string::npos) {
return str.size()-(delimpos+2);
} else {
return 0;
}
}
void HttpHeaderProcessor::clear()
{
strm.str("");
}
SharedHandle<HttpHeader> HttpHeaderProcessor::getHttpResponseHeader()
{
strm.seekg(0, std::ios::beg);
std::string line;
getline(strm, line);
// check HTTP status value
if(line.size() <= 12) {
throw DlRetryEx(EX_NO_STATUS_HEADER);
}
HttpHeaderHandle httpHeader(new HttpHeader());
httpHeader->setResponseStatus(line.substr(9, 3));
httpHeader->setVersion(line.substr(0, 8));
httpHeader->fill(strm);
return httpHeader;
}
std::string HttpHeaderProcessor::getHeaderString() const
{
std::string str = strm.str();
std::string::size_type delimpos = std::string::npos;
if((delimpos = str.find("\r\n\r\n")) != std::string::npos ||
(delimpos = str.find("\n\n")) != std::string::npos) {
return str.substr(0, delimpos);
} else {
return str;
}
}
} // namespace aria2
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