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// SPDX-License-Identifier: Apache-2.0
// SPDX-FileCopyrightText: Copyright OpenBMC Authors
// SPDX-FileCopyrightText: Copyright 2018 Intel Corporation
#pragma once
#include "app.hpp"
#include "async_resp.hpp"
#include "error_messages.hpp"
#include "http_body.hpp"
#include "http_response.hpp"
#include "logging.hpp"
#include <asm-generic/errno.h>
#include <systemd/sd-bus.h>
#include <unistd.h>
#include <boost/beast/http/field.hpp>
#include <boost/beast/http/status.hpp>
#include <boost/beast/http/verb.hpp>
#include <boost/system/linux_error.hpp>
#include <boost/url/format.hpp>
#include <boost/url/url.hpp>
#include <sdbusplus/message.hpp>
#include <sdbusplus/message/native_types.hpp>
#include <sdbusplus/unpack_properties.hpp>
#include <cstdio>
#include <format>
#include <memory>
#include <string>
namespace redfish
{
namespace log_services_utils
{
inline bool checkSizeLimit(int fd, crow::Response& res)
{
long long int size = lseek(fd, 0, SEEK_END);
if (size <= 0)
{
BMCWEB_LOG_ERROR("Failed to get size of file, lseek() returned {}",
size);
messages::internalError(res);
return false;
}
// Arbitrary max size of 20MB to accommodate BMC dumps
constexpr long long int maxFileSize = 20LL * 1024LL * 1024LL;
if (size > maxFileSize)
{
BMCWEB_LOG_ERROR("File size {} exceeds maximum allowed size of {}",
size, maxFileSize);
messages::internalError(res);
return false;
}
off_t rc = lseek(fd, 0, SEEK_SET);
if (rc < 0)
{
BMCWEB_LOG_ERROR("Failed to reset file offset to 0");
messages::internalError(res);
return false;
}
return true;
}
inline void downloadEntryCallback(
const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
const std::string& entryID, const std::string& downloadEntryType,
const boost::system::error_code& ec,
const sdbusplus::message::unix_fd& unixfd)
{
if (ec.value() == EBADR)
{
messages::resourceNotFound(asyncResp->res, "EntryAttachment", entryID);
return;
}
if (ec)
{
BMCWEB_LOG_ERROR("DBUS response error: {}", ec);
messages::internalError(asyncResp->res);
return;
}
// Make sure we know how to process the retrieved entry attachment
if ((downloadEntryType != "BMC") && (downloadEntryType != "System"))
{
BMCWEB_LOG_ERROR("downloadEntryCallback() invalid entry type: {}",
downloadEntryType);
messages::internalError(asyncResp->res);
}
int fd = -1;
fd = dup(unixfd);
if (fd < 0)
{
BMCWEB_LOG_ERROR("Failed to open file");
messages::internalError(asyncResp->res);
return;
}
if (!checkSizeLimit(fd, asyncResp->res))
{
close(fd);
return;
}
if (downloadEntryType == "System")
{
if (!asyncResp->res.openFd(fd, bmcweb::EncodingType::Base64))
{
messages::internalError(asyncResp->res);
close(fd);
return;
}
asyncResp->res.addHeader(
boost::beast::http::field::content_transfer_encoding, "Base64");
return;
}
if (!asyncResp->res.openFd(fd))
{
messages::internalError(asyncResp->res);
close(fd);
return;
}
asyncResp->res.addHeader(boost::beast::http::field::content_type,
"application/octet-stream");
}
} // namespace log_services_utils
} // namespace redfish
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