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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <config.h>
#include "HttpHelper.hpp"
#include <algorithm>
#include <string>
#include <zlib.h>
#include <Poco/Net/HTTPResponse.h>
#include <common/Common.hpp>
#include <common/FileUtil.hpp>
#include <common/Util.hpp>
#include <net/Socket.hpp>
namespace HttpHelper
{
void sendError(int errorCode, const std::shared_ptr<StreamSocket>& socket, const std::string& body,
const std::string& extraHeader)
{
std::ostringstream oss;
oss << "HTTP/1.1 " << errorCode << "\r\n"
<< "Date: " << Util::getHttpTimeNow() << "\r\n"
<< "User-Agent: " << WOPI_AGENT_STRING << "\r\n"
<< "Content-Length: " << body.size() << "\r\n"
<< extraHeader << "\r\n"
<< body;
socket->send(oss.str());
}
void sendErrorAndShutdown(int errorCode, const std::shared_ptr<StreamSocket>& socket,
const std::string& body, const std::string& extraHeader)
{
sendError(errorCode, socket, body, extraHeader);
socket->shutdown();
socket->ignoreInput();
}
void sendUncompressedFileContent(const std::shared_ptr<StreamSocket>& socket,
const std::string& path, const int bufferSize)
{
std::ifstream file(path, std::ios::binary);
std::unique_ptr<char[]> buf(new char[bufferSize]);
do
{
file.read(&buf[0], bufferSize);
const int size = file.gcount();
if (size > 0)
socket->send(&buf[0], size, true);
else
break;
} while (file);
}
void sendDeflatedFileContent(const std::shared_ptr<StreamSocket>& socket, const std::string& path,
const int fileSize)
{
// FIXME: Should compress once ahead of time
// compression of bundle.js takes significant time:
// 200's ms for level 9 (468k), 72ms for level 1(587k)
// down from 2Mb.
if (fileSize > 0)
{
std::ifstream file(path, std::ios::binary);
std::unique_ptr<char[]> buf(new char[fileSize]);
file.read(&buf[0], fileSize);
static const unsigned int Level = 1;
const long unsigned int size = file.gcount();
long unsigned int compSize = compressBound(size);
std::unique_ptr<char[]> cbuf(new char[compSize]);
compress2((Bytef*)&cbuf[0], &compSize, (Bytef*)&buf[0], size, Level);
if (size > 0)
socket->send(&cbuf[0], compSize, true);
}
}
void sendFileAndShutdown(const std::shared_ptr<StreamSocket>& socket, const std::string& path,
const std::string& mediaType, Poco::Net::HTTPResponse* optResponse,
const bool noCache, const bool deflate, const bool headerOnly)
{
Poco::Net::HTTPResponse* response = optResponse;
Poco::Net::HTTPResponse localResponse;
if (!response)
response = &localResponse;
FileUtil::Stat st(path);
if (st.bad())
{
LOG_WRN('#' << socket->getFD() << ": Failed to stat [" << path
<< "]. File will not be sent.");
throw Poco::FileNotFoundException("Failed to stat [" + path + "]. File will not be sent.");
}
if (!noCache)
{
// 60 * 60 * 24 * 128 (days) = 11059200
response->set("Cache-Control", "max-age=11059200");
response->set("ETag", "\"" LOOLWSD_VERSION_HASH "\"");
}
else
{
response->set("Cache-Control", "no-cache");
}
response->setContentType(mediaType);
response->add("X-Content-Type-Options", "nosniff");
int bufferSize = std::min<std::size_t>(st.size(), Socket::MaximumSendBufferSize);
if (static_cast<long>(st.size()) >= socket->getSendBufferSize())
{
socket->setSocketBufferSize(bufferSize);
bufferSize = socket->getSendBufferSize();
}
// Disable deflate for now - until we can cache deflated data.
// FIXME: IE/Edge doesn't work well with deflate, so check with
// IE/Edge before enabling the deflate again
if (!deflate || true)
{
response->setContentLength(st.size());
LOG_TRC('#' << socket->getFD() << ": Sending " << (headerOnly ? "header for " : "")
<< " file [" << path << "].");
socket->send(*response);
if (!headerOnly)
sendUncompressedFileContent(socket, path, bufferSize);
}
else
{
response->set("Content-Encoding", "deflate");
LOG_TRC('#' << socket->getFD() << ": Sending " << (headerOnly ? "header for " : "")
<< " file [" << path << "].");
socket->send(*response);
if (!headerOnly)
sendDeflatedFileContent(socket, path, st.size());
}
socket->shutdown();
}
} // namespace HttpHelper
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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