@sharelist/node-smb-server
Version:
Sharelist SMB Server Implementation Base On node-smb-server
250 lines (224 loc) • 12.5 kB
JavaScript
/*
* Copyright 2015 Adobe Systems Incorporated. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
'use strict';
var put = require('put');
var _ = require('lodash');
var SMB = require('./constants');
var ntstatus = require('../ntstatus.js');
var utils = require('../utils');
// Size of <code>FIND_FILE_DIRECTORY_INFO</code> (without file name).
var FIND_FILE_DIRECTORY_INFO_SIZE = 64;
// Size of <code>FIND_FILE_NAMES_INFO</code> (without file name).
var FIND_FILE_NAMES_INFO_SIZE = 12;
// Size of <code>FIND_FILE_FULL_DIRECTORY_INFO</code> (without file name).
var FIND_FILE_FULL_DIRECTORY_INFO_SIZE = 68;
// Size of <code>FIND_FILE_BOTH_DIRECTORY_INFO</code> (without file name).
var FIND_FILE_BOTH_DIRECTORY_INFO_SIZE = 94;
// Size of <code>FIND_FILE_ID_FULL_DIRECTORY_INFO_SIZE</code> (without file name).
var FIND_FILE_ID_FULL_DIRECTORY_INFO_SIZE = FIND_FILE_FULL_DIRECTORY_INFO_SIZE + 8;
// Size of <code>FIND_FILE_ID_BOTH_DIRECTORY_INFO_SIZE</code> (without file name).
var FIND_FILE_ID_BOTH_DIRECTORY_INFO_SIZE = FIND_FILE_BOTH_DIRECTORY_INFO_SIZE + 2 + 8;
var emptyShortNameBytes = new Buffer(2 * 12); // 8.3 unicode
emptyShortNameBytes.fill(0);
/**
*
* @param {File[]} files files to be serialized according to the specified information level
* @param {Number} start
* @param {Number} end
* @param {Number} informationLevel
* @param {Boolean} inclResumeKey
* @return {Object} result object with status, buffer and lastNameOffset
*/
function serialize(files, start, end, informationLevel, inclResumeKey) {
var out = put();
var status = ntstatus.STATUS_SUCCESS;
var lastNameOffset = 0;
function process(file, index) {
var smbCreated = utils.systemToSMBTime(file.getCreatedTime());
var smbLastModified = utils.systemToSMBTime(file.getLastModifiedTime());
var smbLastAccessed = utils.systemToSMBTime(file.getLastAccessedTime());
var smbLastChanged = utils.systemToSMBTime(file.getLastChangedTime());
var fileNameBytes = new Buffer(file.getName(), 'utf16le');
switch (informationLevel) {
case SMB.FIND_INFO_STANDARD:
if (inclResumeKey) {
out.word32le(index + start); // ResumeKey
}
out.word16le(utils.systemToLegacySMBDate(file.getCreatedTime())) // CreationDate
.word16le(utils.systemToLegacySMBTime(file.getCreatedTime())) // CreationTime
.word16le(utils.systemToLegacySMBDate(file.getLastAccessedTime())) // LastAccessDate
.word16le(utils.systemToLegacySMBTime(file.getLastAccessedTime())) // LastAccessTime
.word16le(utils.systemToLegacySMBDate(file.getLastModifiedTime())) // LastWriteDate
.word16le(utils.systemToLegacySMBTime(file.getLastModifiedTime())) // LastWriteTime
.word32le(file.getDataSize()) // FileDataSize @todo correct?
.word32le(0) // AllocationSize @todo correct?
.word16le(file.getAttributes()) // Attributes
.word32le(fileNameBytes.length) // FileNameLength
.put(fileNameBytes) // FileName
.word16le(0); // (terminating NULL bytes)
break;
case SMB.FIND_INFO_EA_SIZE:
if (inclResumeKey) {
out.word32le(index + start); // ResumeKey
}
out.word16le(utils.systemToLegacySMBDate(file.getCreatedTime())) // CreationDate
.word16le(utils.systemToLegacySMBTime(file.getCreatedTime())) // CreationTime
.word16le(utils.systemToLegacySMBDate(file.getLastAccessedTime())) // LastAccessDate
.word16le(utils.systemToLegacySMBTime(file.getLastAccessedTime())) // LastAccessTime
.word16le(utils.systemToLegacySMBDate(file.getLastModifiedTime())) // LastWriteDate
.word16le(utils.systemToLegacySMBTime(file.getLastModifiedTime())) // LastWriteTime
.word32le(file.getDataSize()) // FileDataSize @todo correct?
.word32le(0) // AllocationSize @todo correct?
.word16le(file.getAttributes()) // Attributes
.word32le(0) // EaSize
.word32le(fileNameBytes.length) // FileNameLength
.put(fileNameBytes) // FileName
.word16le(0); // (terminating NULL bytes)
break;
case SMB.FIND_INFO_EAS_FROM_LIST:
if (inclResumeKey) {
out.word32le(index + start); // ResumeKey
}
out.word16le(utils.systemToLegacySMBDate(file.getCreatedTime())) // CreationDate
.word16le(utils.systemToLegacySMBTime(file.getCreatedTime())) // CreationTime
.word16le(utils.systemToLegacySMBDate(file.getLastAccessedTime())) // LastAccessDate
.word16le(utils.systemToLegacySMBTime(file.getLastAccessedTime())) // LastAccessTime
.word16le(utils.systemToLegacySMBDate(file.getLastModifiedTime())) // LastWriteDate
.word16le(utils.systemToLegacySMBTime(file.getLastModifiedTime())) // LastWriteTime
.word32le(file.getDataSize()) // FileDataSize @todo correct?
.word32le(0) // AllocationSize @todo correct?
.word16le(file.getAttributes()) // Attributes
.word32le(4) // ExtendedAttributeList (empty list)
.word32le(fileNameBytes.length) // FileNameLength
.put(fileNameBytes) // FileName
.word16le(0); // (terminating NULL bytes)
break;
case SMB.FIND_FILE_DIRECTORY_INFO:
out.word32le(index === files.length - 1 ? 0 : FIND_FILE_DIRECTORY_INFO_SIZE + fileNameBytes.length); // NextEntryOffset
out.word32le(index + start); // FileIndex
lastNameOffset = out.length();
out.word32le(smbCreated.getLowBitsUnsigned()) // CreationTime
.word32le(smbCreated.getHighBitsUnsigned())
.word32le(smbLastAccessed.getLowBitsUnsigned()) // LastAccessTime
.word32le(smbLastAccessed.getHighBitsUnsigned())
.word32le(smbLastModified.getLowBitsUnsigned()) // LastWriteTime
.word32le(smbLastModified.getHighBitsUnsigned())
.word32le(smbLastChanged.getLowBitsUnsigned()) // LastChangeTime
.word32le(smbLastChanged.getHighBitsUnsigned())
.word64le(file.getDataSize()) // EndOfFile
.word64le(file.getAllocationSize()) // AllocationSize
.word32le(file.getAttributes()) // ExtFileAttributes
.word32le(fileNameBytes.length) // FileNameLength
.put(fileNameBytes); // FileName
break;
case SMB.FIND_FILE_FULL_DIRECTORY_INFO:
out.word32le(index === files.length - 1 ? 0 : FIND_FILE_FULL_DIRECTORY_INFO_SIZE + fileNameBytes.length); // NextEntryOffset
out.word32le(index + start); // FileIndex
lastNameOffset = out.length();
out.word32le(smbCreated.getLowBitsUnsigned()) // CreationTime
.word32le(smbCreated.getHighBitsUnsigned())
.word32le(smbLastAccessed.getLowBitsUnsigned()) // LastAccessTime
.word32le(smbLastAccessed.getHighBitsUnsigned())
.word32le(smbLastModified.getLowBitsUnsigned()) // LastWriteTime
.word32le(smbLastModified.getHighBitsUnsigned())
.word32le(smbLastChanged.getLowBitsUnsigned()) // LastChangeTime
.word32le(smbLastChanged.getHighBitsUnsigned())
.word64le(file.getDataSize()) // EndOfFile
.word64le(file.getAllocationSize()) // AllocationSize
.word32le(file.getAttributes()) // ExtFileAttributes
.word32le(fileNameBytes.length) // FileNameLength
.word32le(0) // EaSize
.put(fileNameBytes); // FileName
break;
case SMB.FIND_FILE_NAMES_INFO:
out.word32le(index === files.length - 1 ? 0 : FIND_FILE_NAMES_INFO_SIZE + fileNameBytes.length); // NextEntryOffset
out.word32le(index + start); // FileIndex
lastNameOffset = out.length();
out.word32le(fileNameBytes.length) // FileNameLength
.put(fileNameBytes); // FileName
break;
case SMB.FIND_FILE_BOTH_DIRECTORY_INFO:
out.word32le(index === files.length - 1 ? 0 : FIND_FILE_BOTH_DIRECTORY_INFO_SIZE + fileNameBytes.length); // NextEntryOffset
out.word32le(index + start); // FileIndex
lastNameOffset = out.length();
out.word32le(smbCreated.getLowBitsUnsigned()) // CreationTime
.word32le(smbCreated.getHighBitsUnsigned())
.word32le(smbLastAccessed.getLowBitsUnsigned()) // LastAccessTime
.word32le(smbLastAccessed.getHighBitsUnsigned())
.word32le(smbLastModified.getLowBitsUnsigned()) // LastWriteTime
.word32le(smbLastModified.getHighBitsUnsigned())
.word32le(smbLastChanged.getLowBitsUnsigned()) // LastChangeTime
.word32le(smbLastChanged.getHighBitsUnsigned())
.word64le(file.getDataSize()) // EndOfFile
.word64le(0)// AllocationSize (MS-SMB: This field MUST be set to zero)
.word32le(file.getAttributes()) // ExtFileAttributes
.word32le(fileNameBytes.length) // FileNameLength
.word32le(0) // EaSize
.word8(0) // ShortNameLength
.word8(0) // Reserved
.put(emptyShortNameBytes) // ShortName
.put(fileNameBytes); // FileName
break;
case SMB.FIND_FILE_ID_FULL_DIRECTORY_INFO:
out.word32le(index === files.length - 1 ? 0 : FIND_FILE_ID_FULL_DIRECTORY_INFO_SIZE + fileNameBytes.length); // NextEntryOffset
out.word32le(index + start); // FileIndex
lastNameOffset = out.length();
out.word32le(smbCreated.getLowBitsUnsigned()) // CreationTime
.word32le(smbCreated.getHighBitsUnsigned())
.word32le(smbLastAccessed.getLowBitsUnsigned()) // LastAccessTime
.word32le(smbLastAccessed.getHighBitsUnsigned())
.word32le(smbLastModified.getLowBitsUnsigned()) // LastWriteTime
.word32le(smbLastModified.getHighBitsUnsigned())
.word32le(smbLastChanged.getLowBitsUnsigned()) // LastChangeTime
.word32le(smbLastChanged.getHighBitsUnsigned())
.word64le(file.getDataSize()) // EndOfFile
.word64le(file.getAllocationSize()) // AllocationSize
.word32le(file.getAttributes()) // ExtFileAttributes
.word32le(fileNameBytes.length) // FileNameLength
.word32le(0) // EaSize
.word32le(0) // Reserved
.word64le(0) // FileID
.put(fileNameBytes); // FileName
break;
case SMB.FIND_FILE_ID_BOTH_DIRECTORY_INFO:
out.word32le(index === files.length - 1 ? 0 : FIND_FILE_ID_BOTH_DIRECTORY_INFO_SIZE + fileNameBytes.length); // NextEntryOffset
out.word32le(index + start); // FileIndex
lastNameOffset = out.length();
out.word32le(smbCreated.getLowBitsUnsigned()) // CreationTime
.word32le(smbCreated.getHighBitsUnsigned())
.word32le(smbLastAccessed.getLowBitsUnsigned()) // LastAccessTime
.word32le(smbLastAccessed.getHighBitsUnsigned())
.word32le(smbLastModified.getLowBitsUnsigned()) // LastWriteTime
.word32le(smbLastModified.getHighBitsUnsigned())
.word32le(smbLastChanged.getLowBitsUnsigned()) // LastChangeTime
.word32le(smbLastChanged.getHighBitsUnsigned())
.word64le(file.getDataSize()) // EndOfFile
.word64le(0)// AllocationSize (MS-SMB: This field MUST be set to zero)
.word32le(file.getAttributes()) // ExtFileAttributes
.word32le(fileNameBytes.length) // FileNameLength
.word32le(0) // EaSize
.word8(0) // ShortNameLength
.word8(0) // Reserved
.put(emptyShortNameBytes) // ShortName
.word16le(0) // Reserved2
.word64le(0) // FileID
.put(fileNameBytes); // FileName
break;
default:
status = ntstatus.STATUS_OS2_INVALID_LEVEL;
return false;
}
}
_.forEach(files.slice(start, end), process);
return { status: status, buffer: out.buffer(), lastNameOffset: lastNameOffset };
}
module.exports.serialize = serialize;