付智勇 / koa2_Sequelize_project

转到一个项目
Toggle navigation Toggle navigation pinning
付智勇
2e3dcf47 1 parent b8e3060c master ... 20171113 nows revert-2a1f6481

no message

内嵌 并排对比
正在显示 37 个修改的文件 包含 6603 行增加 和 28 行删除
... ... @@ -12,23 +12,46 @@ var userController =function (){
userController.prototype.addUser = async(ctx, next) =>{
var params = ctx.request.body;
const pw = saitMd5.md5AddSalt(params.password)
console.dir(params.password.length,7)
console.dir(params.password.length<6)
if(!params.loginName){
return status.paramError('loginName');
}else if(!params.password){
return status.paramError('password',' 不能为空');
return status.paramError('password','不能为空');
}if(params.password.length < 6){
return status.paramError('password','不得小于6位');
}
var user = {
loginName:params.loginName,
password:pw.md5Pass,
salt:pw.salt
salt:pw.salt,
userType:params.type
}
try{
return await userService.addUser(user)
}catch (we){
}catch (e){
throw new Error(e);
}
}
userController.prototype.login = async(ctx, next) =>{
const body = ctx.request.body;
if(!body.name){
return status.paramError('name');
}else if(!body.password){
return status.paramError('password');
}
try{
// let userData = await userService.login(body.name ,body.password);
// delete userData.password;
// delete userData.salt;
return await userService.login(body.name ,body.password);
}catch (we){
throw new Error(we)
}
}
module.exports = new userController();
\ No newline at end of file
... ...
# 网校接口文档
## 用户管理
### 用户注册
请求url：
POST /users/addUser
请求参数：
名称|类型|描述
:--|:--|:--
|loginName |string |必须, 登录名 |
|password |string |必须，密码 |
|type | int |用户类型：0管理员 1监课 2老师 4学生 |
请求示例：
localhost:3000/users/addUser
body
{
"loginName": "admin",
"telephone": 11112112,
"password": "123456",
"type":1
}
返回参数：
{
"id": "XWBreEM4OK0a5jQB2Q1bpkNlyq9AVmvd",// 用户ID
"createTime": "2017-08-22T08:51:59.000Z", //创建时间
"endTime": "2017-08-22T08:51:59.000Z",
"loginName": "admin", //登录名
"userType": 1 // 用户类型
}
### 用户登录
请求url
POST /users/login
请求参数：
名称|类型|描述
:--|:--|:--
|name |string |必须, 登录名 |
|password |string |必须，密码 |
请求示例：
localhost:3000/users/login
body
{
"name":"admin",
"password":"123456"
}
返回参数：
... ...
All packages installed at Fri Aug 18 2017 18:17:06 GMT+0800 (CST)
\ No newline at end of file
All packages installed at Tue Aug 22 2017 18:52:38 GMT+0800 (CST)
\ No newline at end of file
... ...
Tue Aug 22 2017 18:52:38 GMT+0800 (CST)
\ No newline at end of file
... ...
1.0.4 2016-01-11
----------------
- #204 remove Buffer.from as it's partially broken in early 4.x.x. series of node releases.
1.0.3 2016-01-03
----------------
- Fixed toString for ObjectId so it will work with inspect.
1.0.2 2016-01-02
----------------
- Minor optimizations for ObjectID to use Buffer.from where available.
1.0.1 2016-12-06
----------------
- Reverse behavior for undefined to be serialized as NULL. MongoDB 3.4 does not allow for undefined comparisons.
1.0.0 2016-12-06
----------------
- Introduced new BSON API and documentation.
0.5.7 2016-11-18
-----------------
- NODE-848 BSON Regex flags must be alphabetically ordered.
0.5.6 2016-10-19
-----------------
- NODE-833, Detects cyclic dependencies in documents and throws error if one is found.
- Fix(deserializer): corrected the check for (size + index) comparison… (Issue #195, https://github.com/JoelParke).
0.5.5 2016-09-15
-----------------
- Added DBPointer up conversion to DBRef
0.5.4 2016-08-23
-----------------
- Added promoteValues flag (default to true) allowing user to specify if deserialization should be into wrapper classes only.
0.5.3 2016-07-11
-----------------
- Throw error if ObjectId is not a string or a buffer.
0.5.2 2016-07-11
-----------------
- All values encoded big-endian style for ObjectId.
0.5.1 2016-07-11
-----------------
- Fixed encoding/decoding issue in ObjectId timestamp generation.
- Removed BinaryParser dependency from the serializer/deserializer.
0.5.0 2016-07-05
-----------------
- Added Decimal128 type and extended test suite to include entire bson corpus.
0.4.23 2016-04-08
-----------------
- Allow for proper detection of ObjectId or objects that look like ObjectId, improving compatibility across third party libraries.
- Remove one package from dependency due to having been pulled from NPM.
0.4.22 2016-03-04
-----------------
- Fix "TypeError: data.copy is not a function" in Electron (Issue #170, https://github.com/kangas).
- Fixed issue with undefined type on deserializing.
0.4.21 2016-01-12
-----------------
- Minor optimizations to avoid non needed object creation.
0.4.20 2015-10-15
-----------------
- Added bower file to repository.
- Fixed browser pid sometimes set greater than 0xFFFF on browsers (Issue #155, https://github.com/rahatarmanahmed)
0.4.19 2015-10-15
-----------------
- Remove all support for bson-ext.
0.4.18 2015-10-15
-----------------
- ObjectID equality check should return boolean instead of throwing exception for invalid oid string #139
- add option for deserializing binary into Buffer object #116
0.4.17 2015-10-15
-----------------
- Validate regexp string for null bytes and throw if there is one.
0.4.16 2015-10-07
-----------------
- Fixed issue with return statement in Map.js.
0.4.15 2015-10-06
-----------------
- Exposed Map correctly via index.js file.
0.4.14 2015-10-06
-----------------
- Exposed Map correctly via bson.js file.
0.4.13 2015-10-06
-----------------
- Added ES6 Map type serialization as well as a polyfill for ES5.
0.4.12 2015-09-18
-----------------
- Made ignore undefined an optional parameter.
0.4.11 2015-08-06
-----------------
- Minor fix for invalid key checking.
0.4.10 2015-08-06
-----------------
- NODE-38 Added new BSONRegExp type to allow direct serialization to MongoDB type.
- Some performance improvements by in lining code.
0.4.9 2015-08-06
----------------
- Undefined fields are omitted from serialization in objects.
0.4.8 2015-07-14
----------------
- Fixed size validation to ensure we can deserialize from dumped files.
0.4.7 2015-06-26
----------------
- Added ability to instruct deserializer to return raw BSON buffers for named array fields.
- Minor deserialization optimization by moving inlined function out.
0.4.6 2015-06-17
----------------
- Fixed serializeWithBufferAndIndex bug.
0.4.5 2015-06-17
----------------
- Removed any references to the shared buffer to avoid non GC collectible bson instances.
0.4.4 2015-06-17
----------------
- Fixed rethrowing of error when not RangeError.
0.4.3 2015-06-17
----------------
- Start buffer at 64K and double as needed, meaning we keep a low memory profile until needed.
0.4.2 2015-06-16
----------------
- More fixes for corrupt Bson
0.4.1 2015-06-16
----------------
- More fixes for corrupt Bson
0.4.0 2015-06-16
----------------
- New JS serializer serializing into a single buffer then copying out the new buffer. Performance is similar to current C++ parser.
- Removed bson-ext extension dependency for now.
0.3.2 2015-03-27
----------------
- Removed node-gyp from install script in package.json.
0.3.1 2015-03-27
----------------
- Return pure js version on native() call if failed to initialize.
0.3.0 2015-03-26
----------------
- Pulled out all C++ code into bson-ext and made it an optional dependency.
0.2.21 2015-03-21
-----------------
- Updated Nan to 1.7.0 to support io.js and node 0.12.0
0.2.19 2015-02-16
-----------------
- Updated Nan to 1.6.2 to support io.js and node 0.12.0
0.2.18 2015-01-20
-----------------
- Updated Nan to 1.5.1 to support io.js
0.2.16 2014-12-17
-----------------
- Made pid cycle on 0xffff to avoid weird overflows on creation of ObjectID's
0.2.12 2014-08-24
-----------------
- Fixes for fortify review of c++ extension
- toBSON correctly allows returns of non objects
0.2.3 2013-10-01
----------------
- Drying of ObjectId code for generation of id (Issue #54, https://github.com/moredip)
- Fixed issue where corrupt CString's could cause endless loop
- Support for Node 0.11.X > (Issue #49, https://github.com/kkoopa)
0.1.4 2012-09-25
----------------
- Added precompiled c++ native extensions for win32 ia32 and x64
... ...
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
... ...
# BSON parser
If you don't yet know what BSON actually is, read [the spec](http://bsonspec.org).
The browser version of the BSON parser is compiled using webpack and the current
version is pre-compiled in the browser_build directory. To build a new version perform the following operation.
```
npm install
npm run build
```
A simple example of how to use BSON in the browser:
```html
<script src="./browser_build/bson.js"></script>
<script>
function start() {
// Get the Long type
var Long = BSON.Long;
// Create a bson parser instance
var bson = new BSON();
// Serialize document
var doc = { long: Long.fromNumber(100) }
// Serialize a document
var data = bson.serialize(doc)
// De serialize it again
var doc_2 = bson.deserialize(data)
}
</script>
```
A simple example of how to use BSON in `node.js`:
```js
// Get BSON parser class
var BSON = require('bson')
// Get the Long type
var Long = BSON.Long;
// Create a bson parser instance
var bson = new BSON();
// Serialize document
var doc = { long: Long.fromNumber(100) }
// Serialize a document
var data = bson.serialize(doc)
console.log('data:', data)
// Deserialize the resulting Buffer
var doc_2 = bson.deserialize(data)
console.log('doc_2:', doc_2)
```
## Installation
`npm install bson`
## API
### BSON types
For all BSON types documentation, please refer to the documentation for the mongodb driver.
https://github.com/mongodb/node-mongodb-native
### BSON serialization and deserialiation
**`new BSON()`** - Creates a new BSON seralizer/deserializer you can use to serialize and deserialize BSON.
#### BSON.serialize
The BSON serialize method takes a javascript object and an optional options object and returns a Node.js Buffer.
* BSON.serialize(object, options)
* @param {Object} object the Javascript object to serialize.
* @param {Boolean} [options.checkKeys=false] the serializer will check if keys are valid.
* @param {Boolean} [options.serializeFunctions=false] serialize the javascript. functions.
* @param {Boolean} [options.ignoreUndefined=true]
* @return {Buffer} returns a Buffer instance.
#### BSON.serializeWithBufferAndIndex
The BSON serializeWithBufferAndIndex method takes an object, a target buffer instance and an optional options object and returns the end serialization index in the final buffer.
* BSON.serializeWithBufferAndIndex(object, buffer, options)
* @param {Object} object the Javascript object to serialize.
* @param {Buffer} buffer the Buffer you pre-allocated to store the serialized BSON object.
* @param {Boolean} [options.checkKeys=false] the serializer will check if keys are valid.
* @param {Boolean} [options.serializeFunctions=false] serialize the javascript functions.
* @param {Boolean} [options.ignoreUndefined=true] ignore undefined fields.
* @param {Number} [options.index=0] the index in the buffer where we wish to start serializing into.
* @return {Number} returns the index pointing to the last written byte in the buffer.
#### BSON.calculateObjectSize
The BSON calculateObjectSize method takes a javascript object and an optional options object and returns the size of the BSON object.
* BSON.calculateObjectSize(object, options)
* @param {Object} object the Javascript object to serialize.
* @param {Boolean} [options.serializeFunctions=false] serialize the javascript. functions.
* @param {Boolean} [options.ignoreUndefined=true]
* @return {Buffer} returns a Buffer instance.
#### BSON.deserialize
The BSON deserialize method takes a node.js Buffer and an optional options object and returns a deserialized Javascript object.
* BSON.deserialize(buffer, options)
* @param {Object} [options.evalFunctions=false] evaluate functions in the BSON document scoped to the object deserialized.
* @param {Object} [options.cacheFunctions=false] cache evaluated functions for reuse.
* @param {Object} [options.cacheFunctionsCrc32=false] use a crc32 code for caching, otherwise use the string of the function.
* @param {Object} [options.promoteLongs=true] when deserializing a Long will fit it into a Number if it's smaller than 53 bits
* @param {Object} [options.promoteBuffers=false] when deserializing a Binary will return it as a node.js Buffer instance.
* @param {Object} [options.promoteValues=false] when deserializing will promote BSON values to their Node.js closest equivalent types.
* @param {Object} [options.fieldsAsRaw=null] allow to specify if there what fields we wish to return as unserialized raw buffer.
* @param {Object} [options.bsonRegExp=false] return BSON regular expressions as BSONRegExp instances.
* @return {Number} returns the next index in the buffer after deserialization **x** numbers of documents.
#### BSON.deserializeStream
The BSON deserializeStream method takes a node.js Buffer, startIndex and allow more control over deserialization of a Buffer containing concatenated BSON documents.
* BSON.deserializeStream(buffer, startIndex, numberOfDocuments, documents, docStartIndex, options)
* @param {Buffer} buffer the buffer containing the serialized set of BSON documents.
* @param {Number} startIndex the start index in the data Buffer where the deserialization is to start.
* @param {Number} numberOfDocuments number of documents to deserialize.
* @param {Array} documents an array where to store the deserialized documents.
* @param {Number} docStartIndex the index in the documents array from where to start inserting documents.
* @param {Object} [options.evalFunctions=false] evaluate functions in the BSON document scoped to the object deserialized.
* @param {Object} [options.cacheFunctions=false] cache evaluated functions for reuse.
* @param {Object} [options.cacheFunctionsCrc32=false] use a crc32 code for caching, otherwise use the string of the function.
* @param {Object} [options.promoteLongs=true] when deserializing a Long will fit it into a Number if it's smaller than 53 bits
* @param {Object} [options.promoteBuffers=false] when deserializing a Binary will return it as a node.js Buffer instance.
* @param {Object} [options.promoteValues=false] when deserializing will promote BSON values to their Node.js closest equivalent types.
* @param {Object} [options.fieldsAsRaw=null] allow to specify if there what fields we wish to return as unserialized raw buffer.
* @param {Object} [options.bsonRegExp=false] return BSON regular expressions as BSONRegExp instances.
* @return {Object} returns the deserialized Javascript Object.
... ...
{
"name": "bson",
"description": "A bson parser for node.js and the browser",
"keywords": [
"mongodb",
"bson",
"parser"
],
"author": "Christian Amor Kvalheim <christkv@gmail.com>",
"main": "./browser_build/bson.js",
"license": "Apache-2.0",
"moduleType": [
"globals",
"node"
],
"ignore": [
"**/.*",
"alternate_parsers",
"benchmarks",
"bower_components",
"node_modules",
"test",
"tools"
]
}
... ...
{ "name" : "bson"
, "description" : "A bson parser for node.js and the browser"
, "main": "../"
, "directories" : { "lib" : "../lib/bson" }
, "engines" : { "node" : ">=0.6.0" }
, "licenses" : [ { "type" : "Apache License, Version 2.0"
, "url" : "http://www.apache.org/licenses/LICENSE-2.0" } ]
}
... ...
var BSON = require('./lib/bson/bson'),
Binary = require('./lib/bson/binary'),
Code = require('./lib/bson/code'),
DBRef = require('./lib/bson/db_ref'),
Decimal128 = require('./lib/bson/decimal128'),
Double = require('./lib/bson/double'),
Int32 = require('./lib/bson/int_32'),
Long = require('./lib/bson/long'),
Map = require('./lib/bson/map'),
MaxKey = require('./lib/bson/max_key'),
MinKey = require('./lib/bson/min_key'),
ObjectId = require('./lib/bson/objectid'),
BSONRegExp = require('./lib/bson/regexp'),
Symbol = require('./lib/bson/symbol'),
Timestamp = require('./lib/bson/timestamp');
// BSON MAX VALUES
BSON.BSON_INT32_MAX = 0x7FFFFFFF;
BSON.BSON_INT32_MIN = -0x80000000;
BSON.BSON_INT64_MAX = Math.pow(2, 63) - 1;
BSON.BSON_INT64_MIN = -Math.pow(2, 63);
// JS MAX PRECISE VALUES
BSON.JS_INT_MAX = 0x20000000000000; // Any integer up to 2^53 can be precisely represented by a double.
BSON.JS_INT_MIN = -0x20000000000000; // Any integer down to -2^53 can be precisely represented by a double.
// Add BSON types to function creation
BSON.Binary = Binary;
BSON.Code = Code;
BSON.DBRef = DBRef;
BSON.Decimal128 = Decimal128;
BSON.Double = Double;
BSON.Int32 = Int32;
BSON.Long = Long;
BSON.Map = Map;
BSON.MaxKey = MaxKey;
BSON.MinKey = MinKey;
BSON.ObjectId = ObjectId;
BSON.ObjectID = ObjectId;
BSON.BSONRegExp = BSONRegExp;
BSON.Symbol = Symbol;
BSON.Timestamp = Timestamp;
// Return the BSON
module.exports = BSON;
... ...
/**
* Module dependencies.
* @ignore
*/
// Test if we're in Node via presence of "global" not absence of "window"
// to support hybrid environments like Electron
if(typeof global !== 'undefined') {
var Buffer = require('buffer').Buffer; // TODO just use global Buffer
}
/**
* A class representation of the BSON Binary type.
*
* Sub types
* - **BSON.BSON_BINARY_SUBTYPE_DEFAULT**, default BSON type.
* - **BSON.BSON_BINARY_SUBTYPE_FUNCTION**, BSON function type.
* - **BSON.BSON_BINARY_SUBTYPE_BYTE_ARRAY**, BSON byte array type.
* - **BSON.BSON_BINARY_SUBTYPE_UUID**, BSON uuid type.
* - **BSON.BSON_BINARY_SUBTYPE_MD5**, BSON md5 type.
* - **BSON.BSON_BINARY_SUBTYPE_USER_DEFINED**, BSON user defined type.
*
* @class
* @param {Buffer} buffer a buffer object containing the binary data.
* @param {Number} [subType] the option binary type.
* @return {Binary}
*/
function Binary(buffer, subType) {
if(!(this instanceof Binary)) return new Binary(buffer, subType);
this._bsontype = 'Binary';
if(buffer instanceof Number) {
this.sub_type = buffer;
this.position = 0;
} else {
this.sub_type = subType == null ? BSON_BINARY_SUBTYPE_DEFAULT : subType;
this.position = 0;
}
if(buffer != null && !(buffer instanceof Number)) {
// Only accept Buffer, Uint8Array or Arrays
if(typeof buffer == 'string') {
// Different ways of writing the length of the string for the different types
if(typeof Buffer != 'undefined') {
this.buffer = new Buffer(buffer);
} else if(typeof Uint8Array != 'undefined' || (Object.prototype.toString.call(buffer) == '[object Array]')) {
this.buffer = writeStringToArray(buffer);
} else {
throw new Error("only String, Buffer, Uint8Array or Array accepted");
}
} else {
this.buffer = buffer;
}
this.position = buffer.length;
} else {
if(typeof Buffer != 'undefined') {
this.buffer = new Buffer(Binary.BUFFER_SIZE);
} else if(typeof Uint8Array != 'undefined'){
this.buffer = new Uint8Array(new ArrayBuffer(Binary.BUFFER_SIZE));
} else {
this.buffer = new Array(Binary.BUFFER_SIZE);
}
// Set position to start of buffer
this.position = 0;
}
};
/**
* Updates this binary with byte_value.
*
* @method
* @param {string} byte_value a single byte we wish to write.
*/
Binary.prototype.put = function put(byte_value) {
// If it's a string and a has more than one character throw an error
if(byte_value['length'] != null && typeof byte_value != 'number' && byte_value.length != 1) throw new Error("only accepts single character String, Uint8Array or Array");
if(typeof byte_value != 'number' && byte_value < 0 || byte_value > 255) throw new Error("only accepts number in a valid unsigned byte range 0-255");
// Decode the byte value once
var decoded_byte = null;
if(typeof byte_value == 'string') {
decoded_byte = byte_value.charCodeAt(0);
} else if(byte_value['length'] != null) {
decoded_byte = byte_value[0];
} else {
decoded_byte = byte_value;
}
if(this.buffer.length > this.position) {
this.buffer[this.position++] = decoded_byte;
} else {
if(typeof Buffer != 'undefined' && Buffer.isBuffer(this.buffer)) {
// Create additional overflow buffer
var buffer = new Buffer(Binary.BUFFER_SIZE + this.buffer.length);
// Combine the two buffers together
this.buffer.copy(buffer, 0, 0, this.buffer.length);
this.buffer = buffer;
this.buffer[this.position++] = decoded_byte;
} else {
var buffer = null;
// Create a new buffer (typed or normal array)
if(Object.prototype.toString.call(this.buffer) == '[object Uint8Array]') {
buffer = new Uint8Array(new ArrayBuffer(Binary.BUFFER_SIZE + this.buffer.length));
} else {
buffer = new Array(Binary.BUFFER_SIZE + this.buffer.length);
}
// We need to copy all the content to the new array
for(var i = 0; i < this.buffer.length; i++) {
buffer[i] = this.buffer[i];
}
// Reassign the buffer
this.buffer = buffer;
// Write the byte
this.buffer[this.position++] = decoded_byte;
}
}
};
/**
* Writes a buffer or string to the binary.
*
* @method
* @param {(Buffer|string)} string a string or buffer to be written to the Binary BSON object.
* @param {number} offset specify the binary of where to write the content.
* @return {null}
*/
Binary.prototype.write = function write(string, offset) {
offset = typeof offset == 'number' ? offset : this.position;
// If the buffer is to small let's extend the buffer
if(this.buffer.length < offset + string.length) {
var buffer = null;
// If we are in node.js
if(typeof Buffer != 'undefined' && Buffer.isBuffer(this.buffer)) {
buffer = new Buffer(this.buffer.length + string.length);
this.buffer.copy(buffer, 0, 0, this.buffer.length);
} else if(Object.prototype.toString.call(this.buffer) == '[object Uint8Array]') {
// Create a new buffer
buffer = new Uint8Array(new ArrayBuffer(this.buffer.length + string.length))
// Copy the content
for(var i = 0; i < this.position; i++) {
buffer[i] = this.buffer[i];
}
}
// Assign the new buffer
this.buffer = buffer;
}
if(typeof Buffer != 'undefined' && Buffer.isBuffer(string) && Buffer.isBuffer(this.buffer)) {
string.copy(this.buffer, offset, 0, string.length);
this.position = (offset + string.length) > this.position ? (offset + string.length) : this.position;
// offset = string.length
} else if(typeof Buffer != 'undefined' && typeof string == 'string' && Buffer.isBuffer(this.buffer)) {
this.buffer.write(string, offset, 'binary');
this.position = (offset + string.length) > this.position ? (offset + string.length) : this.position;
// offset = string.length;
} else if(Object.prototype.toString.call(string) == '[object Uint8Array]'
|| Object.prototype.toString.call(string) == '[object Array]' && typeof string != 'string') {
for(var i = 0; i < string.length; i++) {
this.buffer[offset++] = string[i];
}
this.position = offset > this.position ? offset : this.position;
} else if(typeof string == 'string') {
for(var i = 0; i < string.length; i++) {
this.buffer[offset++] = string.charCodeAt(i);
}
this.position = offset > this.position ? offset : this.position;
}
};
/**
* Reads **length** bytes starting at **position**.
*
* @method
* @param {number} position read from the given position in the Binary.
* @param {number} length the number of bytes to read.
* @return {Buffer}
*/
Binary.prototype.read = function read(position, length) {
length = length && length > 0
? length
: this.position;
// Let's return the data based on the type we have
if(this.buffer['slice']) {
return this.buffer.slice(position, position + length);
} else {
// Create a buffer to keep the result
var buffer = typeof Uint8Array != 'undefined' ? new Uint8Array(new ArrayBuffer(length)) : new Array(length);
for(var i = 0; i < length; i++) {
buffer[i] = this.buffer[position++];
}
}
// Return the buffer
return buffer;
};
/**
* Returns the value of this binary as a string.
*
* @method
* @return {string}
*/
Binary.prototype.value = function value(asRaw) {
asRaw = asRaw == null ? false : asRaw;
// Optimize to serialize for the situation where the data == size of buffer
if(asRaw && typeof Buffer != 'undefined' && Buffer.isBuffer(this.buffer) && this.buffer.length == this.position)
return this.buffer;
// If it's a node.js buffer object
if(typeof Buffer != 'undefined' && Buffer.isBuffer(this.buffer)) {
return asRaw ? this.buffer.slice(0, this.position) : this.buffer.toString('binary', 0, this.position);
} else {
if(asRaw) {
// we support the slice command use it
if(this.buffer['slice'] != null) {
return this.buffer.slice(0, this.position);
} else {
// Create a new buffer to copy content to
var newBuffer = Object.prototype.toString.call(this.buffer) == '[object Uint8Array]' ? new Uint8Array(new ArrayBuffer(this.position)) : new Array(this.position);
// Copy content
for(var i = 0; i < this.position; i++) {
newBuffer[i] = this.buffer[i];
}
// Return the buffer
return newBuffer;
}
} else {
return convertArraytoUtf8BinaryString(this.buffer, 0, this.position);
}
}
};
/**
* Length.
*
* @method
* @return {number} the length of the binary.
*/
Binary.prototype.length = function length() {
return this.position;
};
/**
* @ignore
*/
Binary.prototype.toJSON = function() {
return this.buffer != null ? this.buffer.toString('base64') : '';
}
/**
* @ignore
*/
Binary.prototype.toString = function(format) {
return this.buffer != null ? this.buffer.slice(0, this.position).toString(format) : '';
}
/**
* Binary default subtype
* @ignore
*/
var BSON_BINARY_SUBTYPE_DEFAULT = 0;
/**
* @ignore
*/
var writeStringToArray = function(data) {
// Create a buffer
var buffer = typeof Uint8Array != 'undefined' ? new Uint8Array(new ArrayBuffer(data.length)) : new Array(data.length);
// Write the content to the buffer
for(var i = 0; i < data.length; i++) {
buffer[i] = data.charCodeAt(i);
}
// Write the string to the buffer
return buffer;
}
/**
* Convert Array ot Uint8Array to Binary String
*
* @ignore
*/
var convertArraytoUtf8BinaryString = function(byteArray, startIndex, endIndex) {
var result = "";
for(var i = startIndex; i < endIndex; i++) {
result = result + String.fromCharCode(byteArray[i]);
}
return result;
};
Binary.BUFFER_SIZE = 256;
/**
* Default BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_DEFAULT = 0;
/**
* Function BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_FUNCTION = 1;
/**
* Byte Array BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_BYTE_ARRAY = 2;
/**
* OLD UUID BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_UUID_OLD = 3;
/**
* UUID BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_UUID = 4;
/**
* MD5 BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_MD5 = 5;
/**
* User BSON type
*
* @classconstant SUBTYPE_DEFAULT
**/
Binary.SUBTYPE_USER_DEFINED = 128;
/**
* Expose.
*/
module.exports = Binary;
module.exports.Binary = Binary;
... ...
"use strict"
var writeIEEE754 = require('./float_parser').writeIEEE754,
readIEEE754 = require('./float_parser').readIEEE754,
Map = require('./map'),
Long = require('./long'),
Double = require('./double'),
Timestamp = require('./timestamp'),
ObjectID = require('./objectid'),
BSONRegExp = require('./regexp'),
Symbol = require('./symbol'),
Int32 = require('./int_32'),
Code = require('./code'),
Decimal128 = require('./decimal128'),
MinKey = require('./min_key'),
MaxKey = require('./max_key'),
DBRef = require('./db_ref'),
Binary = require('./binary');
// Parts of the parser
var deserialize = require('./parser/deserializer'),
serializer = require('./parser/serializer'),
calculateObjectSize = require('./parser/calculate_size');
/**
* @ignore
* @api private
*/
// Max Size
var MAXSIZE = (1024*1024*17);
// Max Document Buffer size
var buffer = new Buffer(MAXSIZE);
var BSON = function() {
}
/**
* Serialize a Javascript object.
*
* @param {Object} object the Javascript object to serialize.
* @param {Boolean} [options.checkKeys] the serializer will check if keys are valid.
* @param {Boolean} [options.serializeFunctions=false] serialize the javascript functions **(default:false)**.
* @param {Boolean} [options.ignoreUndefined=true] ignore undefined fields **(default:true)**.
* @return {Buffer} returns the Buffer object containing the serialized object.
* @api public
*/
BSON.prototype.serialize = function serialize(object, options) {
options = options || {};
// Unpack the options
var checkKeys = typeof options.checkKeys == 'boolean'
? options.checkKeys : false;
var serializeFunctions = typeof options.serializeFunctions == 'boolean'
? options.serializeFunctions : false;
var ignoreUndefined = typeof options.ignoreUndefined == 'boolean'
? options.ignoreUndefined : true;
// Attempt to serialize
var serializationIndex = serializer(buffer, object, checkKeys, 0, 0, serializeFunctions, ignoreUndefined, []);
// Create the final buffer
var finishedBuffer = new Buffer(serializationIndex);
// Copy into the finished buffer
buffer.copy(finishedBuffer, 0, 0, finishedBuffer.length);
// Return the buffer
return finishedBuffer;
}
/**
* Serialize a Javascript object using a predefined Buffer and index into the buffer, useful when pre-allocating the space for serialization.
*
* @param {Object} object the Javascript object to serialize.
* @param {Buffer} buffer the Buffer you pre-allocated to store the serialized BSON object.
* @param {Boolean} [options.checkKeys] the serializer will check if keys are valid.
* @param {Boolean} [options.serializeFunctions=false] serialize the javascript functions **(default:false)**.
* @param {Boolean} [options.ignoreUndefined=true] ignore undefined fields **(default:true)**.
* @param {Number} [options.index] the index in the buffer where we wish to start serializing into.
* @return {Number} returns the index pointing to the last written byte in the buffer.
* @api public
*/
BSON.prototype.serializeWithBufferAndIndex = function(object, finalBuffer, options) {
options = options || {};
// Unpack the options
var checkKeys = typeof options.checkKeys == 'boolean'
? options.checkKeys : false;
var serializeFunctions = typeof options.serializeFunctions == 'boolean'
? options.serializeFunctions : false;
var ignoreUndefined = typeof options.ignoreUndefined == 'boolean'
? options.ignoreUndefined : true;
var startIndex = typeof options.index == 'number'
? options.index : 0;
// Attempt to serialize
var serializationIndex = serializer(buffer, object, checkKeys, startIndex || 0, 0, serializeFunctions, ignoreUndefined);
buffer.copy(finalBuffer, startIndex, 0, serializationIndex);
// Return the index
return serializationIndex - 1;
}
/**
* Deserialize data as BSON.
*
* @param {Buffer} buffer the buffer containing the serialized set of BSON documents.
* @param {Object} [options.evalFunctions=false] evaluate functions in the BSON document scoped to the object deserialized.
* @param {Object} [options.cacheFunctions=false] cache evaluated functions for reuse.
* @param {Object} [options.cacheFunctionsCrc32=false] use a crc32 code for caching, otherwise use the string of the function.
* @param {Object} [options.promoteLongs=true] when deserializing a Long will fit it into a Number if it's smaller than 53 bits
* @param {Object} [options.promoteBuffers=false] when deserializing a Binary will return it as a node.js Buffer instance.
* @param {Object} [options.promoteValues=false] when deserializing will promote BSON values to their Node.js closest equivalent types.
* @param {Object} [options.fieldsAsRaw=null] allow to specify if there what fields we wish to return as unserialized raw buffer.
* @param {Object} [options.bsonRegExp=false] return BSON regular expressions as BSONRegExp instances.
* @return {Object} returns the deserialized Javascript Object.
* @api public
*/
BSON.prototype.deserialize = function(buffer, options) {
return deserialize(buffer, options);
}
/**
* Calculate the bson size for a passed in Javascript object.
*
* @param {Object} object the Javascript object to calculate the BSON byte size for.
* @param {Boolean} [options.serializeFunctions=false] serialize the javascript functions **(default:false)**.
* @param {Boolean} [options.ignoreUndefined=true] ignore undefined fields **(default:true)**.
* @return {Number} returns the number of bytes the BSON object will take up.
* @api public
*/
BSON.prototype.calculateObjectSize = function(object, options) {
options = options || {};
var serializeFunctions = typeof options.serializeFunctions == 'boolean'
? options.serializeFunctions : false;
var ignoreUndefined = typeof options.ignoreUndefined == 'boolean'
? options.ignoreUndefined : true;
return calculateObjectSize(object, serializeFunctions, ignoreUndefined);
}
/**
* Deserialize stream data as BSON documents.
*
* @param {Buffer} data the buffer containing the serialized set of BSON documents.
* @param {Number} startIndex the start index in the data Buffer where the deserialization is to start.
* @param {Number} numberOfDocuments number of documents to deserialize.
* @param {Array} documents an array where to store the deserialized documents.
* @param {Number} docStartIndex the index in the documents array from where to start inserting documents.
* @param {Object} [options] additional options used for the deserialization.
* @param {Object} [options.evalFunctions=false] evaluate functions in the BSON document scoped to the object deserialized.
* @param {Object} [options.cacheFunctions=false] cache evaluated functions for reuse.
* @param {Object} [options.cacheFunctionsCrc32=false] use a crc32 code for caching, otherwise use the string of the function.
* @param {Object} [options.promoteLongs=true] when deserializing a Long will fit it into a Number if it's smaller than 53 bits
* @param {Object} [options.promoteBuffers=false] when deserializing a Binary will return it as a node.js Buffer instance.
* @param {Object} [options.promoteValues=false] when deserializing will promote BSON values to their Node.js closest equivalent types.
* @param {Object} [options.fieldsAsRaw=null] allow to specify if there what fields we wish to return as unserialized raw buffer.
* @param {Object} [options.bsonRegExp=false] return BSON regular expressions as BSONRegExp instances.
* @return {Number} returns the next index in the buffer after deserialization **x** numbers of documents.
* @api public
*/
BSON.prototype.deserializeStream = function(data, startIndex, numberOfDocuments, documents, docStartIndex, options) {
options = options != null ? options : {};
var index = startIndex;
// Loop over all documents
for(var i = 0; i < numberOfDocuments; i++) {
// Find size of the document
var size = data[index] | data[index + 1] << 8 | data[index + 2] << 16 | data[index + 3] << 24;
// Update options with index
options['index'] = index;
// Parse the document at this point
documents[docStartIndex + i] = this.deserialize(data, options);
// Adjust index by the document size
index = index + size;
}
// Return object containing end index of parsing and list of documents
return index;
}
/**
* @ignore
* @api private
*/
// BSON MAX VALUES
BSON.BSON_INT32_MAX = 0x7FFFFFFF;
BSON.BSON_INT32_MIN = -0x80000000;
BSON.BSON_INT64_MAX = Math.pow(2, 63) - 1;
BSON.BSON_INT64_MIN = -Math.pow(2, 63);
// JS MAX PRECISE VALUES
BSON.JS_INT_MAX = 0x20000000000000; // Any integer up to 2^53 can be precisely represented by a double.
BSON.JS_INT_MIN = -0x20000000000000; // Any integer down to -2^53 can be precisely represented by a double.
// Internal long versions
var JS_INT_MAX_LONG = Long.fromNumber(0x20000000000000); // Any integer up to 2^53 can be precisely represented by a double.
var JS_INT_MIN_LONG = Long.fromNumber(-0x20000000000000); // Any integer down to -2^53 can be precisely represented by a double.
/**
* Number BSON Type
*
* @classconstant BSON_DATA_NUMBER
**/
BSON.BSON_DATA_NUMBER = 1;
/**
* String BSON Type
*
* @classconstant BSON_DATA_STRING
**/
BSON.BSON_DATA_STRING = 2;
/**
* Object BSON Type
*
* @classconstant BSON_DATA_OBJECT
**/
BSON.BSON_DATA_OBJECT = 3;
/**
* Array BSON Type
*
* @classconstant BSON_DATA_ARRAY
**/
BSON.BSON_DATA_ARRAY = 4;
/**
* Binary BSON Type
*
* @classconstant BSON_DATA_BINARY
**/
BSON.BSON_DATA_BINARY = 5;
/**
* ObjectID BSON Type
*
* @classconstant BSON_DATA_OID
**/
BSON.BSON_DATA_OID = 7;
/**
* Boolean BSON Type
*
* @classconstant BSON_DATA_BOOLEAN
**/
BSON.BSON_DATA_BOOLEAN = 8;
/**
* Date BSON Type
*
* @classconstant BSON_DATA_DATE
**/
BSON.BSON_DATA_DATE = 9;
/**
* null BSON Type
*
* @classconstant BSON_DATA_NULL
**/
BSON.BSON_DATA_NULL = 10;
/**
* RegExp BSON Type
*
* @classconstant BSON_DATA_REGEXP
**/
BSON.BSON_DATA_REGEXP = 11;
/**
* Code BSON Type
*
* @classconstant BSON_DATA_CODE
**/
BSON.BSON_DATA_CODE = 13;
/**
* Symbol BSON Type
*
* @classconstant BSON_DATA_SYMBOL
**/
BSON.BSON_DATA_SYMBOL = 14;
/**
* Code with Scope BSON Type
*
* @classconstant BSON_DATA_CODE_W_SCOPE
**/
BSON.BSON_DATA_CODE_W_SCOPE = 15;
/**
* 32 bit Integer BSON Type
*
* @classconstant BSON_DATA_INT
**/
BSON.BSON_DATA_INT = 16;
/**
* Timestamp BSON Type
*
* @classconstant BSON_DATA_TIMESTAMP
**/
BSON.BSON_DATA_TIMESTAMP = 17;
/**
* Long BSON Type
*
* @classconstant BSON_DATA_LONG
**/
BSON.BSON_DATA_LONG = 18;
/**
* MinKey BSON Type
*
* @classconstant BSON_DATA_MIN_KEY
**/
BSON.BSON_DATA_MIN_KEY = 0xff;
/**
* MaxKey BSON Type
*
* @classconstant BSON_DATA_MAX_KEY
**/
BSON.BSON_DATA_MAX_KEY = 0x7f;
/**
* Binary Default Type
*
* @classconstant BSON_BINARY_SUBTYPE_DEFAULT
**/
BSON.BSON_BINARY_SUBTYPE_DEFAULT = 0;
/**
* Binary Function Type
*
* @classconstant BSON_BINARY_SUBTYPE_FUNCTION
**/
BSON.BSON_BINARY_SUBTYPE_FUNCTION = 1;
/**
* Binary Byte Array Type
*
* @classconstant BSON_BINARY_SUBTYPE_BYTE_ARRAY
**/
BSON.BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2;
/**
* Binary UUID Type
*
* @classconstant BSON_BINARY_SUBTYPE_UUID
**/
BSON.BSON_BINARY_SUBTYPE_UUID = 3;
/**
* Binary MD5 Type
*
* @classconstant BSON_BINARY_SUBTYPE_MD5
**/
BSON.BSON_BINARY_SUBTYPE_MD5 = 4;
/**
* Binary User Defined Type
*
* @classconstant BSON_BINARY_SUBTYPE_USER_DEFINED
**/
BSON.BSON_BINARY_SUBTYPE_USER_DEFINED = 128;
// Return BSON
module.exports = BSON;
module.exports.Code = Code;
module.exports.Map = Map;
module.exports.Symbol = Symbol;
module.exports.BSON = BSON;
module.exports.DBRef = DBRef;
module.exports.Binary = Binary;
module.exports.ObjectID = ObjectID;
module.exports.Long = Long;
module.exports.Timestamp = Timestamp;
module.exports.Double = Double;
module.exports.Int32 = Int32;
module.exports.MinKey = MinKey;
module.exports.MaxKey = MaxKey;
module.exports.BSONRegExp = BSONRegExp;
module.exports.Decimal128 = Decimal128;
... ...
/**
* A class representation of the BSON Code type.
*
* @class
* @param {(string|function)} code a string or function.
* @param {Object} [scope] an optional scope for the function.
* @return {Code}
*/
var Code = function Code(code, scope) {
if(!(this instanceof Code)) return new Code(code, scope);
this._bsontype = 'Code';
this.code = code;
this.scope = scope;
};
/**
* @ignore
*/
Code.prototype.toJSON = function() {
return {scope:this.scope, code:this.code};
}
module.exports = Code;
module.exports.Code = Code;
... ...
/**
* A class representation of the BSON DBRef type.
*
* @class
* @param {string} namespace the collection name.
* @param {ObjectID} oid the reference ObjectID.
* @param {string} [db] optional db name, if omitted the reference is local to the current db.
* @return {DBRef}
*/
function DBRef(namespace, oid, db) {
if(!(this instanceof DBRef)) return new DBRef(namespace, oid, db);
this._bsontype = 'DBRef';
this.namespace = namespace;
this.oid = oid;
this.db = db;
};
/**
* @ignore
* @api private
*/
DBRef.prototype.toJSON = function() {
return {
'$ref':this.namespace,
'$id':this.oid,
'$db':this.db == null ? '' : this.db
};
}
module.exports = DBRef;
module.exports.DBRef = DBRef;
\ No newline at end of file
... ...
"use strict"
var Long = require('./long');
var PARSE_STRING_REGEXP = /^(\+|\-)?(\d+|(\d*\.\d*))?(E|e)?([\-\+])?(\d+)?$/;
var PARSE_INF_REGEXP = /^(\+|\-)?(Infinity|inf)$/i;
var PARSE_NAN_REGEXP = /^(\+|\-)?NaN$/i;
var EXPONENT_MAX = 6111;
var EXPONENT_MIN = -6176;
var EXPONENT_BIAS = 6176;
var MAX_DIGITS = 34;
// Nan value bits as 32 bit values (due to lack of longs)
var NAN_BUFFER = [0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00].reverse();
// Infinity value bits 32 bit values (due to lack of longs)
var INF_NEGATIVE_BUFFER = [0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00].reverse();
var INF_POSITIVE_BUFFER = [0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00].reverse();
var EXPONENT_REGEX = /^([\-\+])?(\d+)?$/;
// Detect if the value is a digit
var isDigit = function(value) {
return !isNaN(parseInt(value, 10));
}
// Divide two uint128 values
var divideu128 = function(value) {
var DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
var _rem = Long.fromNumber(0);
var i = 0;
if(!value.parts[0] && !value.parts[1] &&
!value.parts[2] && !value.parts[3]) {
return { quotient: value, rem: _rem };
}
for(var i = 0; i <= 3; i++) {
// Adjust remainder to match value of next dividend
_rem = _rem.shiftLeft(32);
// Add the divided to _rem
_rem = _rem.add(new Long(value.parts[i], 0));
value.parts[i] = _rem.div(DIVISOR).low_;
_rem = _rem.modulo(DIVISOR);
}
return { quotient: value, rem: _rem };
}
// Multiply two Long values and return the 128 bit value
var multiply64x2 = function(left, right) {
if(!left && !right) {
return {high: Long.fromNumber(0), low: Long.fromNumber(0)};
}
var leftHigh = left.shiftRightUnsigned(32);
var leftLow = new Long(left.getLowBits(), 0);
var rightHigh = right.shiftRightUnsigned(32);
var rightLow = new Long(right.getLowBits(), 0);
var productHigh = leftHigh.multiply(rightHigh);
var productMid = leftHigh.multiply(rightLow);
var productMid2 = leftLow.multiply(rightHigh);
var productLow = leftLow.multiply(rightLow);
productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
productMid = new Long(productMid.getLowBits(), 0)
.add(productMid2)
.add(productLow.shiftRightUnsigned(32));
productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
// Return the 128 bit result
return {high: productHigh, low: productLow};
}
var lessThan = function(left, right) {
// Make values unsigned
var uhleft = left.high_ >>> 0;
var uhright = right.high_ >>> 0;
// Compare high bits first
if(uhleft < uhright) {
return true
} else if(uhleft == uhright) {
var ulleft = left.low_ >>> 0;
var ulright = right.low_ >>> 0;
if(ulleft < ulright) return true;
}
return false;
}
var longtoHex = function(value) {
var buffer = new Buffer(8);
var index = 0;
// Encode the low 64 bits of the decimal
// Encode low bits
buffer[index++] = value.low_ & 0xff;
buffer[index++] = (value.low_ >> 8) & 0xff;
buffer[index++] = (value.low_ >> 16) & 0xff;
buffer[index++] = (value.low_ >> 24) & 0xff;
// Encode high bits
buffer[index++] = value.high_ & 0xff;
buffer[index++] = (value.high_ >> 8) & 0xff;
buffer[index++] = (value.high_ >> 16) & 0xff;
buffer[index++] = (value.high_ >> 24) & 0xff;
return buffer.reverse().toString('hex');
}
var int32toHex = function(value) {
var buffer = new Buffer(4);
var index = 0;
// Encode the low 64 bits of the decimal
// Encode low bits
buffer[index++] = value & 0xff;
buffer[index++] = (value >> 8) & 0xff;
buffer[index++] = (value >> 16) & 0xff;
buffer[index++] = (value >> 24) & 0xff;
return buffer.reverse().toString('hex');
}
var Decimal128 = function(bytes) {
this._bsontype = 'Decimal128';
this.bytes = bytes;
}
Decimal128.fromString = function(string) {
// Parse state tracking
var isNegative = false;
var sawRadix = false;
var foundNonZero = false;
// Total number of significant digits (no leading or trailing zero)
var significantDigits = 0;
// Total number of significand digits read
var nDigitsRead = 0;
// Total number of digits (no leading zeros)
var nDigits = 0;
// The number of the digits after radix
var radixPosition = 0;
// The index of the first non-zero in *str*
var firstNonZero = 0;
// Digits Array
var digits = [0];
// The number of digits in digits
var nDigitsStored = 0;
// Insertion pointer for digits
var digitsInsert = 0;
// The index of the first non-zero digit
var firstDigit = 0;
// The index of the last digit
var lastDigit = 0;
// Exponent
var exponent = 0;
// loop index over array
var i = 0;
// The high 17 digits of the significand
var significandHigh = [0, 0];
// The low 17 digits of the significand
var significandLow = [0, 0];
// The biased exponent
var biasedExponent = 0;
// Read index
var index = 0;
// Trim the string
string = string.trim();
// Results
var stringMatch = string.match(PARSE_STRING_REGEXP);
var infMatch = string.match(PARSE_INF_REGEXP);
var nanMatch = string.match(PARSE_NAN_REGEXP);
// Validate the string
if(!stringMatch
&& ! infMatch
&& ! nanMatch || string.length == 0) {
throw new Error("" + string + " not a valid Decimal128 string");
}
// Check if we have an illegal exponent format
if(stringMatch && stringMatch[4] && stringMatch[2] === undefined) {
throw new Error("" + string + " not a valid Decimal128 string");
}
// Get the negative or positive sign
if(string[index] == '+' || string[index] == '-') {
isNegative = string[index++] == '-';
}
// Check if user passed Infinity or NaN
if(!isDigit(string[index]) && string[index] != '.') {
if(string[index] == 'i' || string[index] == 'I') {
return new Decimal128(new Buffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER));
} else if(string[index] == 'N') {
return new Decimal128(new Buffer(NAN_BUFFER));
}
}
// Read all the digits
while(isDigit(string[index]) || string[index] == '.') {
if(string[index] == '.') {
if(sawRadix) {
return new Decimal128(new Buffer(NAN_BUFFER));
}
sawRadix = true;
index = index + 1;
continue;
}
if(nDigitsStored < 34) {
if(string[index] != '0' || foundNonZero) {
if(!foundNonZero) {
firstNonZero = nDigitsRead;
}
foundNonZero = true;
// Only store 34 digits
digits[digitsInsert++] = parseInt(string[index], 10);
nDigitsStored = nDigitsStored + 1;
}
}
if(foundNonZero) {
nDigits = nDigits + 1;
}
if(sawRadix) {
radixPosition = radixPosition + 1;
}
nDigitsRead = nDigitsRead + 1;
index = index + 1;
}
if(sawRadix && !nDigitsRead) {
throw new Error("" + string + " not a valid Decimal128 string");
}
// Read exponent if exists
if(string[index] == 'e' || string[index] == 'E') {
// Read exponent digits
var match = string.substr(++index).match(EXPONENT_REGEX);
// No digits read
if(!match || !match[2]) {
return new Decimal128(new Buffer(NAN_BUFFER));
}
// Get exponent
exponent = parseInt(match[0], 10);
// Adjust the index
index = index + match[0].length;
}
// Return not a number
if(string[index]) {
return new Decimal128(new Buffer(NAN_BUFFER));
}
// Done reading input
// Find first non-zero digit in digits
firstDigit = 0;
if(!nDigitsStored) {
firstDigit = 0;
lastDigit = 0;
digits[0] = 0;
nDigits = 1;
nDigitsStored = 1;
significantDigits = 0;
} else {
lastDigit = nDigitsStored - 1;
significantDigits = nDigits;
if(exponent != 0 && significantDigits != 1) {
while(string[firstNonZero + significantDigits - 1] == '0') {
significantDigits = significantDigits - 1;
}
}
}
// Normalization of exponent
// Correct exponent based on radix position, and shift significand as needed
// to represent user input
// Overflow prevention
if(exponent <= radixPosition && radixPosition - exponent > (1 << 14)) {
exponent = EXPONENT_MIN;
} else {
exponent = exponent - radixPosition;
}
// Attempt to normalize the exponent
while(exponent > EXPONENT_MAX) {
// Shift exponent to significand and decrease
lastDigit = lastDigit + 1;
if(lastDigit - firstDigit > MAX_DIGITS) {
// Check if we have a zero then just hard clamp, otherwise fail
var digitsString = digits.join('');
if(digitsString.match(/^0+$/)) {
exponent = EXPONENT_MAX;
break;
} else {
return new Decimal128(new Buffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER));
}
}
exponent = exponent - 1;
}
while(exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
// Shift last digit
if(lastDigit == 0) {
exponent = EXPONENT_MIN;
significantDigits = 0;
break;
}
if(nDigitsStored < nDigits) {
// adjust to match digits not stored
nDigits = nDigits - 1;
} else {
// adjust to round
lastDigit = lastDigit - 1;
}
if(exponent < EXPONENT_MAX) {
exponent = exponent + 1;
} else {
// Check if we have a zero then just hard clamp, otherwise fail
var digitsString = digits.join('');
if(digitsString.match(/^0+$/)) {
exponent = EXPONENT_MAX;
break;
} else {
return new Decimal128(new Buffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER))
}
}
}
// Round
// We've normalized the exponent, but might still need to round.
if((lastDigit - firstDigit + 1 < significantDigits) && string[significantDigits] != '0') {
var endOfString = nDigitsRead;
// If we have seen a radix point, 'string' is 1 longer than we have
// documented with ndigits_read, so inc the position of the first nonzero
// digit and the position that digits are read to.
if(sawRadix && exponent == EXPONENT_MIN) {
firstNonZero = firstNonZero + 1;
endOfString = endOfString + 1;
}
var roundDigit = parseInt(string[firstNonZero + lastDigit + 1], 10);
var roundBit = 0;
if(roundDigit >= 5) {
roundBit = 1;
if(roundDigit == 5) {
roundBit = digits[lastDigit] % 2 == 1;
for(var i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
if(parseInt(string[i], 10)) {
roundBit = 1;
break;
}
}
}
}
if(roundBit) {
var dIdx = lastDigit;
for(; dIdx >= 0; dIdx--) {
if(++digits[dIdx] > 9) {
digits[dIdx] = 0;
// overflowed most significant digit
if(dIdx == 0) {
if(exponent < EXPONENT_MAX) {
exponent = exponent + 1;
digits[dIdx] = 1;
} else {
return new Decimal128(new Buffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER))
}
}
} else {
break;
}
}
}
}
// Encode significand
// The high 17 digits of the significand
significandHigh = Long.fromNumber(0);
// The low 17 digits of the significand
significandLow = Long.fromNumber(0);
// read a zero
if(significantDigits == 0) {
significandHigh = Long.fromNumber(0);
significandLow = Long.fromNumber(0);
} else if(lastDigit - firstDigit < 17) {
var dIdx = firstDigit;
significandLow = Long.fromNumber(digits[dIdx++]);
significandHigh = new Long(0, 0);
for(; dIdx <= lastDigit; dIdx++) {
significandLow = significandLow.multiply(Long.fromNumber(10));
significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
}
} else {
var dIdx = firstDigit;
significandHigh = Long.fromNumber(digits[dIdx++]);
for(; dIdx <= lastDigit - 17; dIdx++) {
significandHigh = significandHigh.multiply(Long.fromNumber(10));
significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
}
significandLow = Long.fromNumber(digits[dIdx++]);
for(; dIdx <= lastDigit; dIdx++) {
significandLow = significandLow.multiply(Long.fromNumber(10));
significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
}
}
var significand = multiply64x2(significandHigh, Long.fromString("100000000000000000"));
significand.low = significand.low.add(significandLow);
if(lessThan(significand.low, significandLow)) {
significand.high = significand.high.add(Long.fromNumber(1));
}
// Biased exponent
var biasedExponent = (exponent + EXPONENT_BIAS);
var dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
// Encode combination, exponent, and significand.
if(significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber)) {
// Encode '11' into bits 1 to 3
dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
dec.high = dec.high.or(Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47)));
dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
} else {
dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
}
dec.low = significand.low;
// Encode sign
if(isNegative) {
dec.high = dec.high.or(Long.fromString('9223372036854775808'));
}
// Encode into a buffer
var buffer = new Buffer(16);
var index = 0;
// Encode the low 64 bits of the decimal
// Encode low bits
buffer[index++] = dec.low.low_ & 0xff;
buffer[index++] = (dec.low.low_ >> 8) & 0xff;
buffer[index++] = (dec.low.low_ >> 16) & 0xff;
buffer[index++] = (dec.low.low_ >> 24) & 0xff;
// Encode high bits
buffer[index++] = dec.low.high_ & 0xff;
buffer[index++] = (dec.low.high_ >> 8) & 0xff;
buffer[index++] = (dec.low.high_ >> 16) & 0xff;
buffer[index++] = (dec.low.high_ >> 24) & 0xff;
// Encode the high 64 bits of the decimal
// Encode low bits
buffer[index++] = dec.high.low_ & 0xff;
buffer[index++] = (dec.high.low_ >> 8) & 0xff;
buffer[index++] = (dec.high.low_ >> 16) & 0xff;
buffer[index++] = (dec.high.low_ >> 24) & 0xff;
// Encode high bits
buffer[index++] = dec.high.high_ & 0xff;
buffer[index++] = (dec.high.high_ >> 8) & 0xff;
buffer[index++] = (dec.high.high_ >> 16) & 0xff;
buffer[index++] = (dec.high.high_ >> 24) & 0xff;
// Return the new Decimal128
return new Decimal128(buffer);
}
// Extract least significant 5 bits
var COMBINATION_MASK = 0x1f;
// Extract least significant 14 bits
var EXPONENT_MASK = 0x3fff;
// Value of combination field for Inf
var COMBINATION_INFINITY = 30;
// Value of combination field for NaN
var COMBINATION_NAN = 31;
// Value of combination field for NaN
var COMBINATION_SNAN = 32;
// decimal128 exponent bias
var EXPONENT_BIAS = 6176;
Decimal128.prototype.toString = function() {
// Note: bits in this routine are referred to starting at 0,
// from the sign bit, towards the coefficient.
// bits 0 - 31
var high;
// bits 32 - 63
var midh;
// bits 64 - 95
var midl;
// bits 96 - 127
var low;
// bits 1 - 5
var combination;
// decoded biased exponent (14 bits)
var biased_exponent;
// the number of significand digits
var significand_digits = 0;
// the base-10 digits in the significand
var significand = new Array(36);
for(var i = 0; i < significand.length; i++) significand[i] = 0;
// read pointer into significand
var index = 0;
// unbiased exponent
var exponent;
// the exponent if scientific notation is used
var scientific_exponent;
// true if the number is zero
var is_zero = false;
// the most signifcant significand bits (50-46)
var significand_msb;
// temporary storage for significand decoding
var significand128 = {parts: new Array(4)};
// indexing variables
var i;
var j, k;
// Output string
var string = [];
// Unpack index
var index = 0;
// Buffer reference
var buffer = this.bytes;
// Unpack the low 64bits into a long
low = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
midl = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
// Unpack the high 64bits into a long
midh = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
high = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
// Unpack index
var index = 0;
// Create the state of the decimal
var dec = {
low: new Long(low, midl),
high: new Long(midh, high) };
if(dec.high.lessThan(Long.ZERO)) {
string.push('-');
}
// Decode combination field and exponent
combination = (high >> 26) & COMBINATION_MASK;
if((combination >> 3) == 3) {
// Check for 'special' values
if(combination == COMBINATION_INFINITY) {
return string.join('') + "Infinity";
} else if(combination == COMBINATION_NAN) {
return "NaN";
} else {
biased_exponent = (high >> 15) & EXPONENT_MASK;
significand_msb = 0x08 + ((high >> 14) & 0x01);
}
} else {
significand_msb = (high >> 14) & 0x07;
biased_exponent = (high >> 17) & EXPONENT_MASK;
}
exponent = biased_exponent - EXPONENT_BIAS;
// Create string of significand digits
// Convert the 114-bit binary number represented by
// (significand_high, significand_low) to at most 34 decimal
// digits through modulo and division.
significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
significand128.parts[1] = midh;
significand128.parts[2] = midl;
significand128.parts[3] = low;
if(significand128.parts[0] == 0 && significand128.parts[1] == 0
&& significand128.parts[2] == 0 && significand128.parts[3] == 0) {
is_zero = true;
} else {
for(var k = 3; k >= 0; k--) {
var least_digits = 0;
// Peform the divide
var result = divideu128(significand128);
significand128 = result.quotient;
least_digits = result.rem.low_;
// We now have the 9 least significant digits (in base 2).
// Convert and output to string.
if(!least_digits) continue;
for(var j = 8; j >= 0; j--) {
// significand[k * 9 + j] = Math.round(least_digits % 10);
significand[k * 9 + j] = least_digits % 10;
// least_digits = Math.round(least_digits / 10);
least_digits = Math.floor(least_digits / 10);
}
}
}
// Output format options:
// Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd
// Regular - ddd.ddd
if(is_zero) {
significand_digits = 1;
significand[index] = 0;
} else {
significand_digits = 36;
var i = 0;
while(!significand[index]) {
i++;
significand_digits = significand_digits - 1;
index = index + 1;
}
}
scientific_exponent = significand_digits - 1 + exponent;
// The scientific exponent checks are dictated by the string conversion
// specification and are somewhat arbitrary cutoffs.
//
// We must check exponent > 0, because if this is the case, the number
// has trailing zeros. However, we *cannot* output these trailing zeros,
// because doing so would change the precision of the value, and would
// change stored data if the string converted number is round tripped.
if(scientific_exponent >= 34 || scientific_exponent <= -7 ||
exponent > 0) {
// Scientific format
string.push(significand[index++]);
significand_digits = significand_digits - 1;
if(significand_digits) {
string.push('.');
}
for(var i = 0; i < significand_digits; i++) {
string.push(significand[index++]);
}
// Exponent
string.push('E');
if(scientific_exponent > 0) {
string.push('+' + scientific_exponent);
} else {
string.push(scientific_exponent);
}
} else {
// Regular format with no decimal place
if(exponent >= 0) {
for(var i = 0; i < significand_digits; i++) {
string.push(significand[index++]);
}
} else {
var radix_position = significand_digits + exponent;
// non-zero digits before radix
if(radix_position > 0) {
for(var i = 0; i < radix_position; i++) {
string.push(significand[index++]);
}
} else {
string.push('0');
}
string.push('.');
// add leading zeros after radix
while(radix_position++ < 0) {
string.push('0');
}
for(var i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
string.push(significand[index++]);
}
}
}
return string.join('');
}
Decimal128.prototype.toJSON = function() {
return { "$numberDecimal": this.toString() };
}
module.exports = Decimal128;
module.exports.Decimal128 = Decimal128;
... ...
/**
* A class representation of the BSON Double type.
*
* @class
* @param {number} value the number we want to represent as a double.
* @return {Double}
*/
function Double(value) {
if(!(this instanceof Double)) return new Double(value);
this._bsontype = 'Double';
this.value = value;
}
/**
* Access the number value.
*
* @method
* @return {number} returns the wrapped double number.
*/
Double.prototype.valueOf = function() {
return this.value;
};
/**
* @ignore
*/
Double.prototype.toJSON = function() {
return this.value;
}
module.exports = Double;
module.exports.Double = Double;
... ...
// Copyright (c) 2008, Fair Oaks Labs, Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * Neither the name of Fair Oaks Labs, Inc. nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//
// Modifications to writeIEEE754 to support negative zeroes made by Brian White
var readIEEE754 = function(buffer, offset, endian, mLen, nBytes) {
var e, m,
bBE = (endian === 'big'),
eLen = nBytes * 8 - mLen - 1,
eMax = (1 << eLen) - 1,
eBias = eMax >> 1,
nBits = -7,
i = bBE ? 0 : (nBytes - 1),
d = bBE ? 1 : -1,
s = buffer[offset + i];
i += d;
e = s & ((1 << (-nBits)) - 1);
s >>= (-nBits);
nBits += eLen;
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
m = e & ((1 << (-nBits)) - 1);
e >>= (-nBits);
nBits += mLen;
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
if (e === 0) {
e = 1 - eBias;
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity);
} else {
m = m + Math.pow(2, mLen);
e = e - eBias;
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
};
var writeIEEE754 = function(buffer, value, offset, endian, mLen, nBytes) {
var e, m, c,
bBE = (endian === 'big'),
eLen = nBytes * 8 - mLen - 1,
eMax = (1 << eLen) - 1,
eBias = eMax >> 1,
rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
i = bBE ? (nBytes-1) : 0,
d = bBE ? -1 : 1,
s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
value = Math.abs(value);
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0;
e = eMax;
} else {
e = Math.floor(Math.log(value) / Math.LN2);
if (value * (c = Math.pow(2, -e)) < 1) {
e--;
c *= 2;
}
if (e+eBias >= 1) {
value += rt / c;
} else {
value += rt * Math.pow(2, 1 - eBias);
}
if (value * c >= 2) {
e++;
c /= 2;
}
if (e + eBias >= eMax) {
m = 0;
e = eMax;
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen);
e = e + eBias;
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
e = 0;
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
e = (e << mLen) | m;
eLen += mLen;
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
buffer[offset + i - d] |= s * 128;
};
exports.readIEEE754 = readIEEE754;
exports.writeIEEE754 = writeIEEE754;
\ No newline at end of file
... ...
var Int32 = function(value) {
if(!(this instanceof Int32)) return new Int32(value);
this._bsontype = 'Int32';
this.value = value;
}
/**
* Access the number value.
*
* @method
* @return {number} returns the wrapped int32 number.
*/
Int32.prototype.valueOf = function() {
return this.value;
};
/**
* @ignore
*/
Int32.prototype.toJSON = function() {
return this.value;
}
module.exports = Int32;
module.exports.Int32 = Int32;
... ...
// Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright 2009 Google Inc. All Rights Reserved
/**
* Defines a Long class for representing a 64-bit two's-complement
* integer value, which faithfully simulates the behavior of a Java "Long". This
* implementation is derived from LongLib in GWT.
*
* Constructs a 64-bit two's-complement integer, given its low and high 32-bit
* values as *signed* integers. See the from* functions below for more
* convenient ways of constructing Longs.
*
* The internal representation of a Long is the two given signed, 32-bit values.
* We use 32-bit pieces because these are the size of integers on which
* Javascript performs bit-operations. For operations like addition and
* multiplication, we split each number into 16-bit pieces, which can easily be
* multiplied within Javascript's floating-point representation without overflow
* or change in sign.
*
* In the algorithms below, we frequently reduce the negative case to the
* positive case by negating the input(s) and then post-processing the result.
* Note that we must ALWAYS check specially whether those values are MIN_VALUE
* (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
* a positive number, it overflows back into a negative). Not handling this
* case would often result in infinite recursion.
*
* @class
* @param {number} low the low (signed) 32 bits of the Long.
* @param {number} high the high (signed) 32 bits of the Long.
* @return {Long}
*/
function Long(low, high) {
if(!(this instanceof Long)) return new Long(low, high);
this._bsontype = 'Long';
/**
* @type {number}
* @ignore
*/
this.low_ = low | 0; // force into 32 signed bits.
/**
* @type {number}
* @ignore
*/
this.high_ = high | 0; // force into 32 signed bits.
};
/**
* Return the int value.
*
* @method
* @return {number} the value, assuming it is a 32-bit integer.
*/
Long.prototype.toInt = function() {
return this.low_;
};
/**
* Return the Number value.
*
* @method
* @return {number} the closest floating-point representation to this value.
*/
Long.prototype.toNumber = function() {
return this.high_ * Long.TWO_PWR_32_DBL_ +
this.getLowBitsUnsigned();
};
/**
* Return the JSON value.
*
* @method
* @return {string} the JSON representation.
*/
Long.prototype.toJSON = function() {
return this.toString();
}
/**
* Return the String value.
*
* @method
* @param {number} [opt_radix] the radix in which the text should be written.
* @return {string} the textual representation of this value.
*/
Long.prototype.toString = function(opt_radix) {
var radix = opt_radix || 10;
if (radix < 2 || 36 < radix) {
throw Error('radix out of range: ' + radix);
}
if (this.isZero()) {
return '0';
}
if (this.isNegative()) {
if (this.equals(Long.MIN_VALUE)) {
// We need to change the Long value before it can be negated, so we remove
// the bottom-most digit in this base and then recurse to do the rest.
var radixLong = Long.fromNumber(radix);
var div = this.div(radixLong);
var rem = div.multiply(radixLong).subtract(this);
return div.toString(radix) + rem.toInt().toString(radix);
} else {
return '-' + this.negate().toString(radix);
}
}
// Do several (6) digits each time through the loop, so as to
// minimize the calls to the very expensive emulated div.
var radixToPower = Long.fromNumber(Math.pow(radix, 6));
var rem = this;
var result = '';
while (true) {
var remDiv = rem.div(radixToPower);
var intval = rem.subtract(remDiv.multiply(radixToPower)).toInt();
var digits = intval.toString(radix);
rem = remDiv;
if (rem.isZero()) {
return digits + result;
} else {
while (digits.length < 6) {
digits = '0' + digits;
}
result = '' + digits + result;
}
}
};
/**
* Return the high 32-bits value.
*
* @method
* @return {number} the high 32-bits as a signed value.
*/
Long.prototype.getHighBits = function() {
return this.high_;
};
/**
* Return the low 32-bits value.
*
* @method
* @return {number} the low 32-bits as a signed value.
*/
Long.prototype.getLowBits = function() {
return this.low_;
};
/**
* Return the low unsigned 32-bits value.
*
* @method
* @return {number} the low 32-bits as an unsigned value.
*/
Long.prototype.getLowBitsUnsigned = function() {
return (this.low_ >= 0) ?
this.low_ : Long.TWO_PWR_32_DBL_ + this.low_;
};
/**
* Returns the number of bits needed to represent the absolute value of this Long.
*
* @method
* @return {number} Returns the number of bits needed to represent the absolute value of this Long.
*/
Long.prototype.getNumBitsAbs = function() {
if (this.isNegative()) {
if (this.equals(Long.MIN_VALUE)) {
return 64;
} else {
return this.negate().getNumBitsAbs();
}
} else {
var val = this.high_ != 0 ? this.high_ : this.low_;
for (var bit = 31; bit > 0; bit--) {
if ((val & (1 << bit)) != 0) {
break;
}
}
return this.high_ != 0 ? bit + 33 : bit + 1;
}
};
/**
* Return whether this value is zero.
*
* @method
* @return {boolean} whether this value is zero.
*/
Long.prototype.isZero = function() {
return this.high_ == 0 && this.low_ == 0;
};
/**
* Return whether this value is negative.
*
* @method
* @return {boolean} whether this value is negative.
*/
Long.prototype.isNegative = function() {
return this.high_ < 0;
};
/**
* Return whether this value is odd.
*
* @method
* @return {boolean} whether this value is odd.
*/
Long.prototype.isOdd = function() {
return (this.low_ & 1) == 1;
};
/**
* Return whether this Long equals the other
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} whether this Long equals the other
*/
Long.prototype.equals = function(other) {
return (this.high_ == other.high_) && (this.low_ == other.low_);
};
/**
* Return whether this Long does not equal the other.
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} whether this Long does not equal the other.
*/
Long.prototype.notEquals = function(other) {
return (this.high_ != other.high_) || (this.low_ != other.low_);
};
/**
* Return whether this Long is less than the other.
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} whether this Long is less than the other.
*/
Long.prototype.lessThan = function(other) {
return this.compare(other) < 0;
};
/**
* Return whether this Long is less than or equal to the other.
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} whether this Long is less than or equal to the other.
*/
Long.prototype.lessThanOrEqual = function(other) {
return this.compare(other) <= 0;
};
/**
* Return whether this Long is greater than the other.
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} whether this Long is greater than the other.
*/
Long.prototype.greaterThan = function(other) {
return this.compare(other) > 0;
};
/**
* Return whether this Long is greater than or equal to the other.
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} whether this Long is greater than or equal to the other.
*/
Long.prototype.greaterThanOrEqual = function(other) {
return this.compare(other) >= 0;
};
/**
* Compares this Long with the given one.
*
* @method
* @param {Long} other Long to compare against.
* @return {boolean} 0 if they are the same, 1 if the this is greater, and -1 if the given one is greater.
*/
Long.prototype.compare = function(other) {
if (this.equals(other)) {
return 0;
}
var thisNeg = this.isNegative();
var otherNeg = other.isNegative();
if (thisNeg && !otherNeg) {
return -1;
}
if (!thisNeg && otherNeg) {
return 1;
}
// at this point, the signs are the same, so subtraction will not overflow
if (this.subtract(other).isNegative()) {
return -1;
} else {
return 1;
}
};
/**
* The negation of this value.
*
* @method
* @return {Long} the negation of this value.
*/
Long.prototype.negate = function() {
if (this.equals(Long.MIN_VALUE)) {
return Long.MIN_VALUE;
} else {
return this.not().add(Long.ONE);
}
};
/**
* Returns the sum of this and the given Long.
*
* @method
* @param {Long} other Long to add to this one.
* @return {Long} the sum of this and the given Long.
*/
Long.prototype.add = function(other) {
// Divide each number into 4 chunks of 16 bits, and then sum the chunks.
var a48 = this.high_ >>> 16;
var a32 = this.high_ & 0xFFFF;
var a16 = this.low_ >>> 16;
var a00 = this.low_ & 0xFFFF;
var b48 = other.high_ >>> 16;
var b32 = other.high_ & 0xFFFF;
var b16 = other.low_ >>> 16;
var b00 = other.low_ & 0xFFFF;
var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
c00 += a00 + b00;
c16 += c00 >>> 16;
c00 &= 0xFFFF;
c16 += a16 + b16;
c32 += c16 >>> 16;
c16 &= 0xFFFF;
c32 += a32 + b32;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c48 += a48 + b48;
c48 &= 0xFFFF;
return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32);
};
/**
* Returns the difference of this and the given Long.
*
* @method
* @param {Long} other Long to subtract from this.
* @return {Long} the difference of this and the given Long.
*/
Long.prototype.subtract = function(other) {
return this.add(other.negate());
};
/**
* Returns the product of this and the given Long.
*
* @method
* @param {Long} other Long to multiply with this.
* @return {Long} the product of this and the other.
*/
Long.prototype.multiply = function(other) {
if (this.isZero()) {
return Long.ZERO;
} else if (other.isZero()) {
return Long.ZERO;
}
if (this.equals(Long.MIN_VALUE)) {
return other.isOdd() ? Long.MIN_VALUE : Long.ZERO;
} else if (other.equals(Long.MIN_VALUE)) {
return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
}
if (this.isNegative()) {
if (other.isNegative()) {
return this.negate().multiply(other.negate());
} else {
return this.negate().multiply(other).negate();
}
} else if (other.isNegative()) {
return this.multiply(other.negate()).negate();
}
// If both Longs are small, use float multiplication
if (this.lessThan(Long.TWO_PWR_24_) &&
other.lessThan(Long.TWO_PWR_24_)) {
return Long.fromNumber(this.toNumber() * other.toNumber());
}
// Divide each Long into 4 chunks of 16 bits, and then add up 4x4 products.
// We can skip products that would overflow.
var a48 = this.high_ >>> 16;
var a32 = this.high_ & 0xFFFF;
var a16 = this.low_ >>> 16;
var a00 = this.low_ & 0xFFFF;
var b48 = other.high_ >>> 16;
var b32 = other.high_ & 0xFFFF;
var b16 = other.low_ >>> 16;
var b00 = other.low_ & 0xFFFF;
var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
c00 += a00 * b00;
c16 += c00 >>> 16;
c00 &= 0xFFFF;
c16 += a16 * b00;
c32 += c16 >>> 16;
c16 &= 0xFFFF;
c16 += a00 * b16;
c32 += c16 >>> 16;
c16 &= 0xFFFF;
c32 += a32 * b00;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c32 += a16 * b16;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c32 += a00 * b32;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
c48 &= 0xFFFF;
return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32);
};
/**
* Returns this Long divided by the given one.
*
* @method
* @param {Long} other Long by which to divide.
* @return {Long} this Long divided by the given one.
*/
Long.prototype.div = function(other) {
if (other.isZero()) {
throw Error('division by zero');
} else if (this.isZero()) {
return Long.ZERO;
}
if (this.equals(Long.MIN_VALUE)) {
if (other.equals(Long.ONE) ||
other.equals(Long.NEG_ONE)) {
return Long.MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE
} else if (other.equals(Long.MIN_VALUE)) {
return Long.ONE;
} else {
// At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
var halfThis = this.shiftRight(1);
var approx = halfThis.div(other).shiftLeft(1);
if (approx.equals(Long.ZERO)) {
return other.isNegative() ? Long.ONE : Long.NEG_ONE;
} else {
var rem = this.subtract(other.multiply(approx));
var result = approx.add(rem.div(other));
return result;
}
}
} else if (other.equals(Long.MIN_VALUE)) {
return Long.ZERO;
}
if (this.isNegative()) {
if (other.isNegative()) {
return this.negate().div(other.negate());
} else {
return this.negate().div(other).negate();
}
} else if (other.isNegative()) {
return this.div(other.negate()).negate();
}
// Repeat the following until the remainder is less than other: find a
// floating-point that approximates remainder / other *from below*, add this
// into the result, and subtract it from the remainder. It is critical that
// the approximate value is less than or equal to the real value so that the
// remainder never becomes negative.
var res = Long.ZERO;
var rem = this;
while (rem.greaterThanOrEqual(other)) {
// Approximate the result of division. This may be a little greater or
// smaller than the actual value.
var approx = Math.max(1, Math.floor(rem.toNumber() / other.toNumber()));
// We will tweak the approximate result by changing it in the 48-th digit or
// the smallest non-fractional digit, whichever is larger.
var log2 = Math.ceil(Math.log(approx) / Math.LN2);
var delta = (log2 <= 48) ? 1 : Math.pow(2, log2 - 48);
// Decrease the approximation until it is smaller than the remainder. Note
// that if it is too large, the product overflows and is negative.
var approxRes = Long.fromNumber(approx);
var approxRem = approxRes.multiply(other);
while (approxRem.isNegative() || approxRem.greaterThan(rem)) {
approx -= delta;
approxRes = Long.fromNumber(approx);
approxRem = approxRes.multiply(other);
}
// We know the answer can't be zero... and actually, zero would cause
// infinite recursion since we would make no progress.
if (approxRes.isZero()) {
approxRes = Long.ONE;
}
res = res.add(approxRes);
rem = rem.subtract(approxRem);
}
return res;
};
/**
* Returns this Long modulo the given one.
*
* @method
* @param {Long} other Long by which to mod.
* @return {Long} this Long modulo the given one.
*/
Long.prototype.modulo = function(other) {
return this.subtract(this.div(other).multiply(other));
};
/**
* The bitwise-NOT of this value.
*
* @method
* @return {Long} the bitwise-NOT of this value.
*/
Long.prototype.not = function() {
return Long.fromBits(~this.low_, ~this.high_);
};
/**
* Returns the bitwise-AND of this Long and the given one.
*
* @method
* @param {Long} other the Long with which to AND.
* @return {Long} the bitwise-AND of this and the other.
*/
Long.prototype.and = function(other) {
return Long.fromBits(this.low_ & other.low_, this.high_ & other.high_);
};
/**
* Returns the bitwise-OR of this Long and the given one.
*
* @method
* @param {Long} other the Long with which to OR.
* @return {Long} the bitwise-OR of this and the other.
*/
Long.prototype.or = function(other) {
return Long.fromBits(this.low_ | other.low_, this.high_ | other.high_);
};
/**
* Returns the bitwise-XOR of this Long and the given one.
*
* @method
* @param {Long} other the Long with which to XOR.
* @return {Long} the bitwise-XOR of this and the other.
*/
Long.prototype.xor = function(other) {
return Long.fromBits(this.low_ ^ other.low_, this.high_ ^ other.high_);
};
/**
* Returns this Long with bits shifted to the left by the given amount.
*
* @method
* @param {number} numBits the number of bits by which to shift.
* @return {Long} this shifted to the left by the given amount.
*/
Long.prototype.shiftLeft = function(numBits) {
numBits &= 63;
if (numBits == 0) {
return this;
} else {
var low = this.low_;
if (numBits < 32) {
var high = this.high_;
return Long.fromBits(
low << numBits,
(high << numBits) | (low >>> (32 - numBits)));
} else {
return Long.fromBits(0, low << (numBits - 32));
}
}
};
/**
* Returns this Long with bits shifted to the right by the given amount.
*
* @method
* @param {number} numBits the number of bits by which to shift.
* @return {Long} this shifted to the right by the given amount.
*/
Long.prototype.shiftRight = function(numBits) {
numBits &= 63;
if (numBits == 0) {
return this;
} else {
var high = this.high_;
if (numBits < 32) {
var low = this.low_;
return Long.fromBits(
(low >>> numBits) | (high << (32 - numBits)),
high >> numBits);
} else {
return Long.fromBits(
high >> (numBits - 32),
high >= 0 ? 0 : -1);
}
}
};
/**
* Returns this Long with bits shifted to the right by the given amount, with the new top bits matching the current sign bit.
*
* @method
* @param {number} numBits the number of bits by which to shift.
* @return {Long} this shifted to the right by the given amount, with zeros placed into the new leading bits.
*/
Long.prototype.shiftRightUnsigned = function(numBits) {
numBits &= 63;
if (numBits == 0) {
return this;
} else {
var high = this.high_;
if (numBits < 32) {
var low = this.low_;
return Long.fromBits(
(low >>> numBits) | (high << (32 - numBits)),
high >>> numBits);
} else if (numBits == 32) {
return Long.fromBits(high, 0);
} else {
return Long.fromBits(high >>> (numBits - 32), 0);
}
}
};
/**
* Returns a Long representing the given (32-bit) integer value.
*
* @method
* @param {number} value the 32-bit integer in question.
* @return {Long} the corresponding Long value.
*/
Long.fromInt = function(value) {
if (-128 <= value && value < 128) {
var cachedObj = Long.INT_CACHE_[value];
if (cachedObj) {
return cachedObj;
}
}
var obj = new Long(value | 0, value < 0 ? -1 : 0);
if (-128 <= value && value < 128) {
Long.INT_CACHE_[value] = obj;
}
return obj;
};
/**
* Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
*
* @method
* @param {number} value the number in question.
* @return {Long} the corresponding Long value.
*/
Long.fromNumber = function(value) {
if (isNaN(value) || !isFinite(value)) {
return Long.ZERO;
} else if (value <= -Long.TWO_PWR_63_DBL_) {
return Long.MIN_VALUE;
} else if (value + 1 >= Long.TWO_PWR_63_DBL_) {
return Long.MAX_VALUE;
} else if (value < 0) {
return Long.fromNumber(-value).negate();
} else {
return new Long(
(value % Long.TWO_PWR_32_DBL_) | 0,
(value / Long.TWO_PWR_32_DBL_) | 0);
}
};
/**
* Returns a Long representing the 64-bit integer that comes by concatenating the given high and low bits. Each is assumed to use 32 bits.
*
* @method
* @param {number} lowBits the low 32-bits.
* @param {number} highBits the high 32-bits.
* @return {Long} the corresponding Long value.
*/
Long.fromBits = function(lowBits, highBits) {
return new Long(lowBits, highBits);
};
/**
* Returns a Long representation of the given string, written using the given radix.
*
* @method
* @param {string} str the textual representation of the Long.
* @param {number} opt_radix the radix in which the text is written.
* @return {Long} the corresponding Long value.
*/
Long.fromString = function(str, opt_radix) {
if (str.length == 0) {
throw Error('number format error: empty string');
}
var radix = opt_radix || 10;
if (radix < 2 || 36 < radix) {
throw Error('radix out of range: ' + radix);
}
if (str.charAt(0) == '-') {
return Long.fromString(str.substring(1), radix).negate();
} else if (str.indexOf('-') >= 0) {
throw Error('number format error: interior "-" character: ' + str);
}
// Do several (8) digits each time through the loop, so as to
// minimize the calls to the very expensive emulated div.
var radixToPower = Long.fromNumber(Math.pow(radix, 8));
var result = Long.ZERO;
for (var i = 0; i < str.length; i += 8) {
var size = Math.min(8, str.length - i);
var value = parseInt(str.substring(i, i + size), radix);
if (size < 8) {
var power = Long.fromNumber(Math.pow(radix, size));
result = result.multiply(power).add(Long.fromNumber(value));
} else {
result = result.multiply(radixToPower);
result = result.add(Long.fromNumber(value));
}
}
return result;
};
// NOTE: Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the
// from* methods on which they depend.
/**
* A cache of the Long representations of small integer values.
* @type {Object}
* @ignore
*/
Long.INT_CACHE_ = {};
// NOTE: the compiler should inline these constant values below and then remove
// these variables, so there should be no runtime penalty for these.
/**
* Number used repeated below in calculations. This must appear before the
* first call to any from* function below.
* @type {number}
* @ignore
*/
Long.TWO_PWR_16_DBL_ = 1 << 16;
/**
* @type {number}
* @ignore
*/
Long.TWO_PWR_24_DBL_ = 1 << 24;
/**
* @type {number}
* @ignore
*/
Long.TWO_PWR_32_DBL_ = Long.TWO_PWR_16_DBL_ * Long.TWO_PWR_16_DBL_;
/**
* @type {number}
* @ignore
*/
Long.TWO_PWR_31_DBL_ = Long.TWO_PWR_32_DBL_ / 2;
/**
* @type {number}
* @ignore
*/
Long.TWO_PWR_48_DBL_ = Long.TWO_PWR_32_DBL_ * Long.TWO_PWR_16_DBL_;
/**
* @type {number}
* @ignore
*/
Long.TWO_PWR_64_DBL_ = Long.TWO_PWR_32_DBL_ * Long.TWO_PWR_32_DBL_;
/**
* @type {number}
* @ignore
*/
Long.TWO_PWR_63_DBL_ = Long.TWO_PWR_64_DBL_ / 2;
/** @type {Long} */
Long.ZERO = Long.fromInt(0);
/** @type {Long} */
Long.ONE = Long.fromInt(1);
/** @type {Long} */
Long.NEG_ONE = Long.fromInt(-1);
/** @type {Long} */
Long.MAX_VALUE =
Long.fromBits(0xFFFFFFFF | 0, 0x7FFFFFFF | 0);
/** @type {Long} */
Long.MIN_VALUE = Long.fromBits(0, 0x80000000 | 0);
/**
* @type {Long}
* @ignore
*/
Long.TWO_PWR_24_ = Long.fromInt(1 << 24);
/**
* Expose.
*/
module.exports = Long;
module.exports.Long = Long;
\ No newline at end of file
... ...
"use strict"
// We have an ES6 Map available, return the native instance
if(typeof global.Map !== 'undefined') {
module.exports = global.Map;
module.exports.Map = global.Map;
} else {
// We will return a polyfill
var Map = function(array) {
this._keys = [];
this._values = {};
for(var i = 0; i < array.length; i++) {
if(array[i] == null) continue; // skip null and undefined
var entry = array[i];
var key = entry[0];
var value = entry[1];
// Add the key to the list of keys in order
this._keys.push(key);
// Add the key and value to the values dictionary with a point
// to the location in the ordered keys list
this._values[key] = {v: value, i: this._keys.length - 1};
}
}
Map.prototype.clear = function() {
this._keys = [];
this._values = {};
}
Map.prototype.delete = function(key) {
var value = this._values[key];
if(value == null) return false;
// Delete entry
delete this._values[key];
// Remove the key from the ordered keys list
this._keys.splice(value.i, 1);
return true;
}
Map.prototype.entries = function() {
var self = this;
var index = 0;
return {
next: function() {
var key = self._keys[index++];
return {
value: key !== undefined ? [key, self._values[key].v] : undefined,
done: key !== undefined ? false : true
}
}
};
}
Map.prototype.forEach = function(callback, self) {
self = self || this;
for(var i = 0; i < this._keys.length; i++) {
var key = this._keys[i];
// Call the forEach callback
callback.call(self, this._values[key].v, key, self);
}
}
Map.prototype.get = function(key) {
return this._values[key] ? this._values[key].v : undefined;
}
Map.prototype.has = function(key) {
return this._values[key] != null;
}
Map.prototype.keys = function(key) {
var self = this;
var index = 0;
return {
next: function() {
var key = self._keys[index++];
return {
value: key !== undefined ? key : undefined,
done: key !== undefined ? false : true
}
}
};
}
Map.prototype.set = function(key, value) {
if(this._values[key]) {
this._values[key].v = value;
return this;
}
// Add the key to the list of keys in order
this._keys.push(key);
// Add the key and value to the values dictionary with a point
// to the location in the ordered keys list
this._values[key] = {v: value, i: this._keys.length - 1};
return this;
}
Map.prototype.values = function(key, value) {
var self = this;
var index = 0;
return {
next: function() {
var key = self._keys[index++];
return {
value: key !== undefined ? self._values[key].v : undefined,
done: key !== undefined ? false : true
}
}
};
}
// Last ismaster
Object.defineProperty(Map.prototype, 'size', {
enumerable:true,
get: function() { return this._keys.length; }
});
module.exports = Map;
module.exports.Map = Map;
}
\ No newline at end of file
... ...
/**
* A class representation of the BSON MaxKey type.
*
* @class
* @return {MaxKey} A MaxKey instance
*/
function MaxKey() {
if(!(this instanceof MaxKey)) return new MaxKey();
this._bsontype = 'MaxKey';
}
module.exports = MaxKey;
module.exports.MaxKey = MaxKey;
\ No newline at end of file
... ...
/**
* A class representation of the BSON MinKey type.
*
* @class
* @return {MinKey} A MinKey instance
*/
function MinKey() {
if(!(this instanceof MinKey)) return new MinKey();
this._bsontype = 'MinKey';
}
module.exports = MinKey;
module.exports.MinKey = MinKey;
\ No newline at end of file
... ...
/**
* Machine id.
*
* Create a random 3-byte value (i.e. unique for this
* process). Other drivers use a md5 of the machine id here, but
* that would mean an asyc call to gethostname, so we don't bother.
* @ignore
*/
var MACHINE_ID = parseInt(Math.random() * 0xFFFFFF, 10);
// Regular expression that checks for hex value
var checkForHexRegExp = new RegExp("^[0-9a-fA-F]{24}$");
var hasBufferType = false;
// Check if buffer exists
try {
if(Buffer && Buffer.from) hasBufferType = true;
} catch(err) {};
/**
* Create a new ObjectID instance
*
* @class
* @param {(string|number)} id Can be a 24 byte hex string, 12 byte binary string or a Number.
* @property {number} generationTime The generation time of this ObjectId instance
* @return {ObjectID} instance of ObjectID.
*/
var ObjectID = function ObjectID(id) {
// Duck-typing to support ObjectId from different npm packages
if(id instanceof ObjectID) return id;
if(!(this instanceof ObjectID)) return new ObjectID(id);
this._bsontype = 'ObjectID';
// The most common usecase (blank id, new objectId instance)
if(id == null || typeof id == 'number') {
// Generate a new id
this.id = this.generate(id);
// If we are caching the hex string
if(ObjectID.cacheHexString) this.__id = this.toString('hex');
// Return the object
return;
}
// Check if the passed in id is valid
var valid = ObjectID.isValid(id);
// Throw an error if it's not a valid setup
if(!valid && id != null){
throw new Error("Argument passed in must be a single String of 12 bytes or a string of 24 hex characters");
} else if(valid && typeof id == 'string' && id.length == 24 && hasBufferType) {
return new ObjectID(new Buffer(id, 'hex'));
} else if(valid && typeof id == 'string' && id.length == 24) {
return ObjectID.createFromHexString(id);
} else if(id != null && id.length === 12) {
// assume 12 byte string
this.id = id;
} else if(id != null && id.toHexString) {
// Duck-typing to support ObjectId from different npm packages
return id;
} else {
throw new Error("Argument passed in must be a single String of 12 bytes or a string of 24 hex characters");
}
if(ObjectID.cacheHexString) this.__id = this.toString('hex');
};
// Allow usage of ObjectId as well as ObjectID
var ObjectId = ObjectID;
// Precomputed hex table enables speedy hex string conversion
var hexTable = [];
for (var i = 0; i < 256; i++) {
hexTable[i] = (i <= 15 ? '0' : '') + i.toString(16);
}
/**
* Return the ObjectID id as a 24 byte hex string representation
*
* @method
* @return {string} return the 24 byte hex string representation.
*/
ObjectID.prototype.toHexString = function() {
if(ObjectID.cacheHexString && this.__id) return this.__id;
var hexString = '';
if(!this.id || !this.id.length) {
throw new Error('invalid ObjectId, ObjectId.id must be either a string or a Buffer, but is [' + JSON.stringify(this.id) + ']');
}
if(this.id instanceof _Buffer) {
hexString = convertToHex(this.id);
if(ObjectID.cacheHexString) this.__id = hexString;
return hexString;
}
for (var i = 0; i < this.id.length; i++) {
hexString += hexTable[this.id.charCodeAt(i)];
}
if(ObjectID.cacheHexString) this.__id = hexString;
return hexString;
};
/**
* Update the ObjectID index used in generating new ObjectID's on the driver
*
* @method
* @return {number} returns next index value.
* @ignore
*/
ObjectID.prototype.get_inc = function() {
return ObjectID.index = (ObjectID.index + 1) % 0xFFFFFF;
};
/**
* Update the ObjectID index used in generating new ObjectID's on the driver
*
* @method
* @return {number} returns next index value.
* @ignore
*/
ObjectID.prototype.getInc = function() {
return this.get_inc();
};
/**
* Generate a 12 byte id buffer used in ObjectID's
*
* @method
* @param {number} [time] optional parameter allowing to pass in a second based timestamp.
* @return {Buffer} return the 12 byte id buffer string.
*/
ObjectID.prototype.generate = function(time) {
if ('number' != typeof time) {
time = ~~(Date.now()/1000);
}
// Use pid
var pid = (typeof process === 'undefined' ? Math.floor(Math.random() * 100000) : process.pid) % 0xFFFF;
var inc = this.get_inc();
// Buffer used
var buffer = new Buffer(12);
// Encode time
buffer[3] = time & 0xff;
buffer[2] = (time >> 8) & 0xff;
buffer[1] = (time >> 16) & 0xff;
buffer[0] = (time >> 24) & 0xff;
// Encode machine
buffer[6] = MACHINE_ID & 0xff;
buffer[5] = (MACHINE_ID >> 8) & 0xff;
buffer[4] = (MACHINE_ID >> 16) & 0xff;
// Encode pid
buffer[8] = pid & 0xff;
buffer[7] = (pid >> 8) & 0xff;
// Encode index
buffer[11] = inc & 0xff;
buffer[10] = (inc >> 8) & 0xff;
buffer[9] = (inc >> 16) & 0xff;
// Return the buffer
return buffer;
};
/**
* Converts the id into a 24 byte hex string for printing
*
* @param {String} format The Buffer toString format parameter.
* @return {String} return the 24 byte hex string representation.
* @ignore
*/
ObjectID.prototype.toString = function(format) {
// Is the id a buffer then use the buffer toString method to return the format
if(this.id && this.id.copy) {
return this.id.toString(typeof format === 'string' ? format : 'hex');
}
// if(this.buffer )
return this.toHexString();
};
/**
* Converts to a string representation of this Id.
*
* @return {String} return the 24 byte hex string representation.
* @ignore
*/
ObjectID.prototype.inspect = ObjectID.prototype.toString;
/**
* Converts to its JSON representation.
*
* @return {String} return the 24 byte hex string representation.
* @ignore
*/
ObjectID.prototype.toJSON = function() {
return this.toHexString();
};
/**
* Compares the equality of this ObjectID with `otherID`.
*
* @method
* @param {object} otherID ObjectID instance to compare against.
* @return {boolean} the result of comparing two ObjectID's
*/
ObjectID.prototype.equals = function equals (otherId) {
var id;
if(otherId instanceof ObjectID) {
return this.toString() == otherId.toString();
} else if(typeof otherId == 'string' && ObjectID.isValid(otherId) && otherId.length == 12 && this.id instanceof _Buffer) {
return otherId === this.id.toString('binary');
} else if(typeof otherId == 'string' && ObjectID.isValid(otherId) && otherId.length == 24) {
return otherId.toLowerCase() === this.toHexString();
} else if(typeof otherId == 'string' && ObjectID.isValid(otherId) && otherId.length == 12) {
return otherId === this.id;
} else if(otherId != null && (otherId instanceof ObjectID || otherId.toHexString)) {
return otherId.toHexString() === this.toHexString();
} else {
return false;
}
}
/**
* Returns the generation date (accurate up to the second) that this ID was generated.
*
* @method
* @return {date} the generation date
*/
ObjectID.prototype.getTimestamp = function() {
var timestamp = new Date();
var time = this.id[3] | this.id[2] << 8 | this.id[1] << 16 | this.id[0] << 24;
timestamp.setTime(Math.floor(time) * 1000);
return timestamp;
}
/**
* @ignore
*/
ObjectID.index = ~~(Math.random() * 0xFFFFFF);
/**
* @ignore
*/
ObjectID.createPk = function createPk () {
return new ObjectID();
};
/**
* Creates an ObjectID from a second based number, with the rest of the ObjectID zeroed out. Used for comparisons or sorting the ObjectID.
*
* @method
* @param {number} time an integer number representing a number of seconds.
* @return {ObjectID} return the created ObjectID
*/
ObjectID.createFromTime = function createFromTime (time) {
var buffer = new Buffer([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
// Encode time into first 4 bytes
buffer[3] = time & 0xff;
buffer[2] = (time >> 8) & 0xff;
buffer[1] = (time >> 16) & 0xff;
buffer[0] = (time >> 24) & 0xff;
// Return the new objectId
return new ObjectID(buffer);
};
// Lookup tables
var encodeLookup = '0123456789abcdef'.split('')
var decodeLookup = []
var i = 0
while (i < 10) decodeLookup[0x30 + i] = i++
while (i < 16) decodeLookup[0x41 - 10 + i] = decodeLookup[0x61 - 10 + i] = i++
var _Buffer = Buffer;
var convertToHex = function(bytes) {
return bytes.toString('hex');
}
/**
* Creates an ObjectID from a hex string representation of an ObjectID.
*
* @method
* @param {string} hexString create a ObjectID from a passed in 24 byte hexstring.
* @return {ObjectID} return the created ObjectID
*/
ObjectID.createFromHexString = function createFromHexString (string) {
// Throw an error if it's not a valid setup
if(typeof string === 'undefined' || string != null && string.length != 24) {
throw new Error("Argument passed in must be a single String of 12 bytes or a string of 24 hex characters");
}
// Use Buffer.from method if available
if(hasBufferType) return new ObjectID(new Buffer(string, 'hex'));
// Calculate lengths
var array = new _Buffer(12);
var n = 0;
var i = 0;
while (i < 24) {
array[n++] = decodeLookup[string.charCodeAt(i++)] << 4 | decodeLookup[string.charCodeAt(i++)]
}
return new ObjectID(array);
};
/**
* Checks if a value is a valid bson ObjectId
*
* @method
* @return {boolean} return true if the value is a valid bson ObjectId, return false otherwise.
*/
ObjectID.isValid = function isValid(id) {
if(id == null) return false;
if(typeof id == 'number') {
return true;
}
if(typeof id == 'string') {
return id.length == 12 || (id.length == 24 && checkForHexRegExp.test(id));
}
if(id instanceof ObjectID) {
return true;
}
if(id instanceof _Buffer) {
return true;
}
// Duck-Typing detection of ObjectId like objects
if(id.toHexString) {
return id.id.length == 12 || (id.id.length == 24 && checkForHexRegExp.test(id.id));
}
return false;
};
/**
* @ignore
*/
Object.defineProperty(ObjectID.prototype, "generationTime", {
enumerable: true
, get: function () {
return this.id[3] | this.id[2] << 8 | this.id[1] << 16 | this.id[0] << 24;
}
, set: function (value) {
// Encode time into first 4 bytes
this.id[3] = value & 0xff;
this.id[2] = (value >> 8) & 0xff;
this.id[1] = (value >> 16) & 0xff;
this.id[0] = (value >> 24) & 0xff;
}
});
/**
* Expose.
*/
module.exports = ObjectID;
module.exports.ObjectID = ObjectID;
module.exports.ObjectId = ObjectID;
... ...
"use strict"
var writeIEEE754 = require('../float_parser').writeIEEE754
, readIEEE754 = require('../float_parser').readIEEE754
, Long = require('../long').Long
, Double = require('../double').Double
, Timestamp = require('../timestamp').Timestamp
, ObjectID = require('../objectid').ObjectID
, Symbol = require('../symbol').Symbol
, BSONRegExp = require('../regexp').BSONRegExp
, Code = require('../code').Code
, Decimal128 = require('../decimal128')
, MinKey = require('../min_key').MinKey
, MaxKey = require('../max_key').MaxKey
, DBRef = require('../db_ref').DBRef
, Binary = require('../binary').Binary;
// To ensure that 0.4 of node works correctly
var isDate = function isDate(d) {
return typeof d === 'object' && Object.prototype.toString.call(d) === '[object Date]';
}
var calculateObjectSize = function calculateObjectSize(object, serializeFunctions, ignoreUndefined) {
var totalLength = (4 + 1);
if(Array.isArray(object)) {
for(var i = 0; i < object.length; i++) {
totalLength += calculateElement(i.toString(), object[i], serializeFunctions, true, ignoreUndefined)
}
} else {
// If we have toBSON defined, override the current object
if(object.toBSON) {
object = object.toBSON();
}
// Calculate size
for(var key in object) {
totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined)
}
}
return totalLength;
}
/**
* @ignore
* @api private
*/
function calculateElement(name, value, serializeFunctions, isArray, ignoreUndefined) {
// If we have toBSON defined, override the current object
if(value && value.toBSON){
value = value.toBSON();
}
switch(typeof value) {
case 'string':
return 1 + Buffer.byteLength(name, 'utf8') + 1 + 4 + Buffer.byteLength(value, 'utf8') + 1;
case 'number':
if(Math.floor(value) === value && value >= BSON.JS_INT_MIN && value <= BSON.JS_INT_MAX) {
if(value >= BSON.BSON_INT32_MIN && value <= BSON.BSON_INT32_MAX) { // 32 bit
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (4 + 1);
} else {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (8 + 1);
}
} else { // 64 bit
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (8 + 1);
}
case 'undefined':
if(isArray || !ignoreUndefined) return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (1);
return 0;
case 'boolean':
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (1 + 1);
case 'object':
if(value == null || value instanceof MinKey || value instanceof MaxKey || value['_bsontype'] == 'MinKey' || value['_bsontype'] == 'MaxKey') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (1);
} else if(value instanceof ObjectID || value['_bsontype'] == 'ObjectID') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (12 + 1);
} else if(value instanceof Date || isDate(value)) {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (8 + 1);
} else if(typeof Buffer !== 'undefined' && Buffer.isBuffer(value)) {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (1 + 4 + 1) + value.length;
} else if(value instanceof Long || value instanceof Double || value instanceof Timestamp
|| value['_bsontype'] == 'Long' || value['_bsontype'] == 'Double' || value['_bsontype'] == 'Timestamp') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (8 + 1);
} else if(value instanceof Decimal128 || value['_bsontype'] == 'Decimal128') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (16 + 1);
} else if(value instanceof Code || value['_bsontype'] == 'Code') {
// Calculate size depending on the availability of a scope
if(value.scope != null && Object.keys(value.scope).length > 0) {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + 4 + 4 + Buffer.byteLength(value.code.toString(), 'utf8') + 1 + calculateObjectSize(value.scope, serializeFunctions, ignoreUndefined);
} else {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + 4 + Buffer.byteLength(value.code.toString(), 'utf8') + 1;
}
} else if(value instanceof Binary || value['_bsontype'] == 'Binary') {
// Check what kind of subtype we have
if(value.sub_type == Binary.SUBTYPE_BYTE_ARRAY) {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (value.position + 1 + 4 + 1 + 4);
} else {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + (value.position + 1 + 4 + 1);
}
} else if(value instanceof Symbol || value['_bsontype'] == 'Symbol') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + Buffer.byteLength(value.value, 'utf8') + 4 + 1 + 1;
} else if(value instanceof DBRef || value['_bsontype'] == 'DBRef') {
// Set up correct object for serialization
var ordered_values = {
'$ref': value.namespace
, '$id' : value.oid
};
// Add db reference if it exists
if(null != value.db) {
ordered_values['$db'] = value.db;
}
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + calculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined);
} else if(value instanceof RegExp || Object.prototype.toString.call(value) === '[object RegExp]') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + Buffer.byteLength(value.source, 'utf8') + 1
+ (value.global ? 1 : 0) + (value.ignoreCase ? 1 : 0) + (value.multiline ? 1 : 0) + 1
} else if(value instanceof BSONRegExp || value['_bsontype'] == 'BSONRegExp') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + Buffer.byteLength(value.pattern, 'utf8') + 1
+ Buffer.byteLength(value.options, 'utf8') + 1
} else {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + calculateObjectSize(value, serializeFunctions, ignoreUndefined) + 1;
}
case 'function':
// WTF for 0.4.X where typeof /someregexp/ === 'function'
if(value instanceof RegExp || Object.prototype.toString.call(value) === '[object RegExp]' || String.call(value) == '[object RegExp]') {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + Buffer.byteLength(value.source, 'utf8') + 1
+ (value.global ? 1 : 0) + (value.ignoreCase ? 1 : 0) + (value.multiline ? 1 : 0) + 1
} else {
if(serializeFunctions && value.scope != null && Object.keys(value.scope).length > 0) {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + 4 + 4 + Buffer.byteLength(value.toString(), 'utf8') + 1 + calculateObjectSize(value.scope, serializeFunctions, ignoreUndefined);
} else if(serializeFunctions) {
return (name != null ? (Buffer.byteLength(name, 'utf8') + 1) : 0) + 1 + 4 + Buffer.byteLength(value.toString(), 'utf8') + 1;
}
}
}
return 0;
}
var BSON = {};
// BSON MAX VALUES
BSON.BSON_INT32_MAX = 0x7FFFFFFF;
BSON.BSON_INT32_MIN = -0x80000000;
// JS MAX PRECISE VALUES
BSON.JS_INT_MAX = 0x20000000000000; // Any integer up to 2^53 can be precisely represented by a double.
BSON.JS_INT_MIN = -0x20000000000000; // Any integer down to -2^53 can be precisely represented by a double.
module.exports = calculateObjectSize;
... ...
"use strict"
var readIEEE754 = require('../float_parser').readIEEE754,
f = require('util').format,
Long = require('../long').Long,
Double = require('../double').Double,
Timestamp = require('../timestamp').Timestamp,
ObjectID = require('../objectid').ObjectID,
Symbol = require('../symbol').Symbol,
Code = require('../code').Code,
MinKey = require('../min_key').MinKey,
MaxKey = require('../max_key').MaxKey,
Decimal128 = require('../decimal128'),
Int32 = require('../int_32'),
DBRef = require('../db_ref').DBRef,
BSONRegExp = require('../regexp').BSONRegExp,
Binary = require('../binary').Binary;
var deserialize = function(buffer, options, isArray) {
options = options == null ? {} : options;
var index = options && options.index ? options.index : 0;
// Read the document size
var size = buffer[index] | buffer[index+1] << 8 | buffer[index+2] << 16 | buffer[index+3] << 24;
// Ensure buffer is valid size
if(size < 5 || buffer.length < size || (size + index) > buffer.length) {
throw new Error("corrupt bson message");
}
// Illegal end value
if(buffer[index + size - 1] != 0) {
throw new Error("One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00");
}
// Start deserializtion
return deserializeObject(buffer, index, options, isArray);
}
var deserializeObject = function(buffer, index, options, isArray) {
var evalFunctions = options['evalFunctions'] == null ? false : options['evalFunctions'];
var cacheFunctions = options['cacheFunctions'] == null ? false : options['cacheFunctions'];
var cacheFunctionsCrc32 = options['cacheFunctionsCrc32'] == null ? false : options['cacheFunctionsCrc32'];
var fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
// Return raw bson buffer instead of parsing it
var raw = options['raw'] == null ? false : options['raw'];
// Return BSONRegExp objects instead of native regular expressions
var bsonRegExp = typeof options['bsonRegExp'] == 'boolean' ? options['bsonRegExp'] : false;
// Controls the promotion of values vs wrapper classes
var promoteBuffers = options['promoteBuffers'] == null ? false : options['promoteBuffers'];
var promoteLongs = options['promoteLongs'] == null ? true : options['promoteLongs'];
var promoteValues = options['promoteValues'] == null ? true : options['promoteValues'];
// Set the start index
var startIndex = index;
// Validate that we have at least 4 bytes of buffer
if(buffer.length < 5) throw new Error("corrupt bson message < 5 bytes long");
// Read the document size
var size = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
// Ensure buffer is valid size
if(size < 5 || size > buffer.length) throw new Error("corrupt bson message");
// Create holding object
var object = isArray ? [] : {};
// Used for arrays to skip having to perform utf8 decoding
var arrayIndex = 0;
// While we have more left data left keep parsing
while(true) {
// Read the type
var elementType = buffer[index++];
// If we get a zero it's the last byte, exit
if(elementType == 0) {
break;
}
// Get the start search index
var i = index;
// Locate the end of the c string
while(buffer[i] !== 0x00 && i < buffer.length) {
i++
}
// If are at the end of the buffer there is a problem with the document
if(i >= buffer.length) throw new Error("Bad BSON Document: illegal CString")
var name = isArray ? arrayIndex++ : buffer.toString('utf8', index, i);
index = i + 1;
if(elementType == BSON.BSON_DATA_STRING) {
var stringSize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
if(stringSize <= 0 || stringSize > (buffer.length - index) || buffer[index + stringSize - 1] != 0) throw new Error("bad string length in bson");
object[name] = buffer.toString('utf8', index, index + stringSize - 1);
index = index + stringSize;
} else if(elementType == BSON.BSON_DATA_OID) {
var oid = new Buffer(12);
buffer.copy(oid, 0, index, index + 12);
object[name] = new ObjectID(oid);
index = index + 12;
} else if(elementType == BSON.BSON_DATA_INT && promoteValues == false) {
object[name] = new Int32(buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24);
} else if(elementType == BSON.BSON_DATA_INT) {
object[name] = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
} else if(elementType == BSON.BSON_DATA_NUMBER && promoteValues == false) {
object[name] = new Double(buffer.readDoubleLE(index));
index = index + 8;
} else if(elementType == BSON.BSON_DATA_NUMBER) {
object[name] = buffer.readDoubleLE(index);
index = index + 8;
} else if(elementType == BSON.BSON_DATA_DATE) {
var lowBits = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
var highBits = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
object[name] = new Date(new Long(lowBits, highBits).toNumber());
} else if(elementType == BSON.BSON_DATA_BOOLEAN) {
if(buffer[index] != 0 && buffer[index] != 1) throw new Error('illegal boolean type value');
object[name] = buffer[index++] == 1;
} else if(elementType == BSON.BSON_DATA_OBJECT) {
var _index = index;
var objectSize = buffer[index] | buffer[index + 1] << 8 | buffer[index + 2] << 16 | buffer[index + 3] << 24;
if(objectSize <= 0 || objectSize > (buffer.length - index)) throw new Error("bad embedded document length in bson");
// We have a raw value
if(raw) {
object[name] = buffer.slice(index, index + objectSize);
} else {
object[name] = deserializeObject(buffer, _index, options, false);
}
index = index + objectSize;
} else if(elementType == BSON.BSON_DATA_ARRAY) {
var _index = index;
var objectSize = buffer[index] | buffer[index + 1] << 8 | buffer[index + 2] << 16 | buffer[index + 3] << 24;
var arrayOptions = options;
// Stop index
var stopIndex = index + objectSize;
// All elements of array to be returned as raw bson
if(fieldsAsRaw && fieldsAsRaw[name]) {
arrayOptions = {};
for(var n in options) arrayOptions[n] = options[n];
arrayOptions['raw'] = true;
}
object[name] = deserializeObject(buffer, _index, arrayOptions, true);
index = index + objectSize;
if(buffer[index - 1] != 0) throw new Error('invalid array terminator byte');
if(index != stopIndex) throw new Error('corrupted array bson');
} else if(elementType == BSON.BSON_DATA_UNDEFINED) {
object[name] = undefined;
} else if(elementType == BSON.BSON_DATA_NULL) {
object[name] = null;
} else if(elementType == BSON.BSON_DATA_LONG) {
// Unpack the low and high bits
var lowBits = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
var highBits = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
var long = new Long(lowBits, highBits);
// Promote the long if possible
if(promoteLongs && promoteValues == true) {
object[name] = long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG) ? long.toNumber() : long;
} else {
object[name] = long;
}
} else if(elementType == BSON.BSON_DATA_DECIMAL128) {
// Buffer to contain the decimal bytes
var bytes = new Buffer(16);
// Copy the next 16 bytes into the bytes buffer
buffer.copy(bytes, 0, index, index + 16);
// Update index
index = index + 16;
// Assign the new Decimal128 value
var decimal128 = new Decimal128(bytes);
// If we have an alternative mapper use that
object[name] = decimal128.toObject ? decimal128.toObject() : decimal128;
} else if(elementType == BSON.BSON_DATA_BINARY) {
var binarySize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
var totalBinarySize = binarySize;
var subType = buffer[index++];
// Did we have a negative binary size, throw
if(binarySize < 0) throw new Error('Negative binary type element size found');
// Is the length longer than the document
if(binarySize > buffer.length) throw new Error('Binary type size larger than document size');
// Decode as raw Buffer object if options specifies it
if(buffer['slice'] != null) {
// If we have subtype 2 skip the 4 bytes for the size
if(subType == Binary.SUBTYPE_BYTE_ARRAY) {
binarySize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
if(binarySize < 0) throw new Error('Negative binary type element size found for subtype 0x02');
if(binarySize > (totalBinarySize - 4)) throw new Error('Binary type with subtype 0x02 contains to long binary size');
if(binarySize < (totalBinarySize - 4)) throw new Error('Binary type with subtype 0x02 contains to short binary size');
}
if(promoteBuffers && promoteValues) {
object[name] = buffer.slice(index, index + binarySize);
} else {
object[name] = new Binary(buffer.slice(index, index + binarySize), subType);
}
} else {
var _buffer = typeof Uint8Array != 'undefined' ? new Uint8Array(new ArrayBuffer(binarySize)) : new Array(binarySize);
// If we have subtype 2 skip the 4 bytes for the size
if(subType == Binary.SUBTYPE_BYTE_ARRAY) {
binarySize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
if(binarySize < 0) throw new Error('Negative binary type element size found for subtype 0x02');
if(binarySize > (totalBinarySize - 4)) throw new Error('Binary type with subtype 0x02 contains to long binary size');
if(binarySize < (totalBinarySize - 4)) throw new Error('Binary type with subtype 0x02 contains to short binary size');
}
// Copy the data
for(var i = 0; i < binarySize; i++) {
_buffer[i] = buffer[index + i];
}
if(promoteBuffers && promoteValues) {
object[name] = _buffer;
} else {
object[name] = new Binary(_buffer, subType);
}
}
// Update the index
index = index + binarySize;
} else if(elementType == BSON.BSON_DATA_REGEXP && bsonRegExp == false) {
// Get the start search index
var i = index;
// Locate the end of the c string
while(buffer[i] !== 0x00 && i < buffer.length) {
i++
}
// If are at the end of the buffer there is a problem with the document
if(i >= buffer.length) throw new Error("Bad BSON Document: illegal CString")
// Return the C string
var source = buffer.toString('utf8', index, i);
// Create the regexp
index = i + 1;
// Get the start search index
var i = index;
// Locate the end of the c string
while(buffer[i] !== 0x00 && i < buffer.length) {
i++
}
// If are at the end of the buffer there is a problem with the document
if(i >= buffer.length) throw new Error("Bad BSON Document: illegal CString")
// Return the C string
var regExpOptions = buffer.toString('utf8', index, i);
index = i + 1;
// For each option add the corresponding one for javascript
var optionsArray = new Array(regExpOptions.length);
// Parse options
for(var i = 0; i < regExpOptions.length; i++) {
switch(regExpOptions[i]) {
case 'm':
optionsArray[i] = 'm';
break;
case 's':
optionsArray[i] = 'g';
break;
case 'i':
optionsArray[i] = 'i';
break;
}
}
object[name] = new RegExp(source, optionsArray.join(''));
} else if(elementType == BSON.BSON_DATA_REGEXP && bsonRegExp == true) {
// Get the start search index
var i = index;
// Locate the end of the c string
while(buffer[i] !== 0x00 && i < buffer.length) {
i++
}
// If are at the end of the buffer there is a problem with the document
if(i >= buffer.length) throw new Error("Bad BSON Document: illegal CString")
// Return the C string
var source = buffer.toString('utf8', index, i);
index = i + 1;
// Get the start search index
var i = index;
// Locate the end of the c string
while(buffer[i] !== 0x00 && i < buffer.length) {
i++
}
// If are at the end of the buffer there is a problem with the document
if(i >= buffer.length) throw new Error("Bad BSON Document: illegal CString")
// Return the C string
var regExpOptions = buffer.toString('utf8', index, i);
index = i + 1;
// Set the object
object[name] = new BSONRegExp(source, regExpOptions);
} else if(elementType == BSON.BSON_DATA_SYMBOL) {
var stringSize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
if(stringSize <= 0 || stringSize > (buffer.length - index) || buffer[index + stringSize - 1] != 0) throw new Error("bad string length in bson");
object[name] = new Symbol(buffer.toString('utf8', index, index + stringSize - 1));
index = index + stringSize;
} else if(elementType == BSON.BSON_DATA_TIMESTAMP) {
var lowBits = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
var highBits = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
object[name] = new Timestamp(lowBits, highBits);
} else if(elementType == BSON.BSON_DATA_MIN_KEY) {
object[name] = new MinKey();
} else if(elementType == BSON.BSON_DATA_MAX_KEY) {
object[name] = new MaxKey();
} else if(elementType == BSON.BSON_DATA_CODE) {
var stringSize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
if(stringSize <= 0 || stringSize > (buffer.length - index) || buffer[index + stringSize - 1] != 0) throw new Error("bad string length in bson");
var functionString = buffer.toString('utf8', index, index + stringSize - 1);
// If we are evaluating the functions
if(evalFunctions) {
var value = null;
// If we have cache enabled let's look for the md5 of the function in the cache
if(cacheFunctions) {
var hash = cacheFunctionsCrc32 ? crc32(functionString) : functionString;
// Got to do this to avoid V8 deoptimizing the call due to finding eval
object[name] = isolateEvalWithHash(functionCache, hash, functionString, object);
} else {
object[name] = isolateEval(functionString);
}
} else {
object[name] = new Code(functionString);
}
// Update parse index position
index = index + stringSize;
} else if(elementType == BSON.BSON_DATA_CODE_W_SCOPE) {
var totalSize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
// Element cannot be shorter than totalSize + stringSize + documentSize + terminator
if(totalSize < (4 + 4 + 4 + 1)) {
throw new Error("code_w_scope total size shorter minimum expected length");
}
// Get the code string size
var stringSize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
// Check if we have a valid string
if(stringSize <= 0 || stringSize > (buffer.length - index) || buffer[index + stringSize - 1] != 0) throw new Error("bad string length in bson");
// Javascript function
var functionString = buffer.toString('utf8', index, index + stringSize - 1);
// Update parse index position
index = index + stringSize;
// Parse the element
var _index = index;
// Decode the size of the object document
var objectSize = buffer[index] | buffer[index + 1] << 8 | buffer[index + 2] << 16 | buffer[index + 3] << 24;
// Decode the scope object
var scopeObject = deserializeObject(buffer, _index, options, false);
// Adjust the index
index = index + objectSize;
// Check if field length is to short
if(totalSize < (4 + 4 + objectSize + stringSize)) {
throw new Error('code_w_scope total size is to short, truncating scope');
}
// Check if totalSize field is to long
if(totalSize > (4 + 4 + objectSize + stringSize)) {
throw new Error('code_w_scope total size is to long, clips outer document');
}
// If we are evaluating the functions
if(evalFunctions) {
// Contains the value we are going to set
var value = null;
// If we have cache enabled let's look for the md5 of the function in the cache
if(cacheFunctions) {
var hash = cacheFunctionsCrc32 ? crc32(functionString) : functionString;
// Got to do this to avoid V8 deoptimizing the call due to finding eval
object[name] = isolateEvalWithHash(functionCache, hash, functionString, object);
} else {
object[name] = isolateEval(functionString);
}
object[name].scope = scopeObject;
} else {
object[name] = new Code(functionString, scopeObject);
}
} else if(elementType == BSON.BSON_DATA_DBPOINTER) {
// Get the code string size
var stringSize = buffer[index++] | buffer[index++] << 8 | buffer[index++] << 16 | buffer[index++] << 24;
// Check if we have a valid string
if(stringSize <= 0 || stringSize > (buffer.length - index) || buffer[index + stringSize - 1] != 0) throw new Error("bad string length in bson");
// Namespace
var namespace = buffer.toString('utf8', index, index + stringSize - 1);
// Update parse index position
index = index + stringSize;
// Read the oid
var oidBuffer = new Buffer(12);
buffer.copy(oidBuffer, 0, index, index + 12);
var oid = new ObjectID(oidBuffer);
// Update the index
index = index + 12;
// Split the namespace
var parts = namespace.split('.');
var db = parts.shift();
var collection = parts.join('.');
// Upgrade to DBRef type
object[name] = new DBRef(collection, oid, db);
} else {
throw new Error("Detected unknown BSON type " + elementType.toString(16) + " for fieldname \"" + name + "\", are you using the latest BSON parser");
}
}
// Check if the deserialization was against a valid array/object
if(size != (index - startIndex)) {
if(isArray) throw new Error('corrupt array bson');
throw new Error('corrupt object bson');
}
// Check if we have a db ref object
if(object['$id'] != null) object = new DBRef(object['$ref'], object['$id'], object['$db']);
return object;
}
/**
* Ensure eval is isolated.
*
* @ignore
* @api private
*/
var isolateEvalWithHash = function(functionCache, hash, functionString, object) {
// Contains the value we are going to set
var value = null;
// Check for cache hit, eval if missing and return cached function
if(functionCache[hash] == null) {
eval("value = " + functionString);
functionCache[hash] = value;
}
// Set the object
return functionCache[hash].bind(object);
}
/**
* Ensure eval is isolated.
*
* @ignore
* @api private
*/
var isolateEval = function(functionString) {
// Contains the value we are going to set
var value = null;
// Eval the function
eval("value = " + functionString);
return value;
}
var BSON = {};
/**
* Contains the function cache if we have that enable to allow for avoiding the eval step on each deserialization, comparison is by md5
*
* @ignore
* @api private
*/
var functionCache = BSON.functionCache = {};
/**
* Number BSON Type
*
* @classconstant BSON_DATA_NUMBER
**/
BSON.BSON_DATA_NUMBER = 1;
/**
* String BSON Type
*
* @classconstant BSON_DATA_STRING
**/
BSON.BSON_DATA_STRING = 2;
/**
* Object BSON Type
*
* @classconstant BSON_DATA_OBJECT
**/
BSON.BSON_DATA_OBJECT = 3;
/**
* Array BSON Type
*
* @classconstant BSON_DATA_ARRAY
**/
BSON.BSON_DATA_ARRAY = 4;
/**
* Binary BSON Type
*
* @classconstant BSON_DATA_BINARY
**/
BSON.BSON_DATA_BINARY = 5;
/**
* Binary BSON Type
*
* @classconstant BSON_DATA_UNDEFINED
**/
BSON.BSON_DATA_UNDEFINED = 6;
/**
* ObjectID BSON Type
*
* @classconstant BSON_DATA_OID
**/
BSON.BSON_DATA_OID = 7;
/**
* Boolean BSON Type
*
* @classconstant BSON_DATA_BOOLEAN
**/
BSON.BSON_DATA_BOOLEAN = 8;
/**
* Date BSON Type
*
* @classconstant BSON_DATA_DATE
**/
BSON.BSON_DATA_DATE = 9;
/**
* null BSON Type
*
* @classconstant BSON_DATA_NULL
**/
BSON.BSON_DATA_NULL = 10;
/**
* RegExp BSON Type
*
* @classconstant BSON_DATA_REGEXP
**/
BSON.BSON_DATA_REGEXP = 11;
/**
* Code BSON Type
*
* @classconstant BSON_DATA_DBPOINTER
**/
BSON.BSON_DATA_DBPOINTER = 12;
/**
* Code BSON Type
*
* @classconstant BSON_DATA_CODE
**/
BSON.BSON_DATA_CODE = 13;
/**
* Symbol BSON Type
*
* @classconstant BSON_DATA_SYMBOL
**/
BSON.BSON_DATA_SYMBOL = 14;
/**
* Code with Scope BSON Type
*
* @classconstant BSON_DATA_CODE_W_SCOPE
**/
BSON.BSON_DATA_CODE_W_SCOPE = 15;
/**
* 32 bit Integer BSON Type
*
* @classconstant BSON_DATA_INT
**/
BSON.BSON_DATA_INT = 16;
/**
* Timestamp BSON Type
*
* @classconstant BSON_DATA_TIMESTAMP
**/
BSON.BSON_DATA_TIMESTAMP = 17;
/**
* Long BSON Type
*
* @classconstant BSON_DATA_LONG
**/
BSON.BSON_DATA_LONG = 18;
/**
* Long BSON Type
*
* @classconstant BSON_DATA_DECIMAL128
**/
BSON.BSON_DATA_DECIMAL128 = 19;
/**
* MinKey BSON Type
*
* @classconstant BSON_DATA_MIN_KEY
**/
BSON.BSON_DATA_MIN_KEY = 0xff;
/**
* MaxKey BSON Type
*
* @classconstant BSON_DATA_MAX_KEY
**/
BSON.BSON_DATA_MAX_KEY = 0x7f;
/**
* Binary Default Type
*
* @classconstant BSON_BINARY_SUBTYPE_DEFAULT
**/
BSON.BSON_BINARY_SUBTYPE_DEFAULT = 0;
/**
* Binary Function Type
*
* @classconstant BSON_BINARY_SUBTYPE_FUNCTION
**/
BSON.BSON_BINARY_SUBTYPE_FUNCTION = 1;
/**
* Binary Byte Array Type
*
* @classconstant BSON_BINARY_SUBTYPE_BYTE_ARRAY
**/
BSON.BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2;
/**
* Binary UUID Type
*
* @classconstant BSON_BINARY_SUBTYPE_UUID
**/
BSON.BSON_BINARY_SUBTYPE_UUID = 3;
/**
* Binary MD5 Type
*
* @classconstant BSON_BINARY_SUBTYPE_MD5
**/
BSON.BSON_BINARY_SUBTYPE_MD5 = 4;
/**
* Binary User Defined Type
*
* @classconstant BSON_BINARY_SUBTYPE_USER_DEFINED
**/
BSON.BSON_BINARY_SUBTYPE_USER_DEFINED = 128;
// BSON MAX VALUES
BSON.BSON_INT32_MAX = 0x7FFFFFFF;
BSON.BSON_INT32_MIN = -0x80000000;
BSON.BSON_INT64_MAX = Math.pow(2, 63) - 1;
BSON.BSON_INT64_MIN = -Math.pow(2, 63);
// JS MAX PRECISE VALUES
BSON.JS_INT_MAX = 0x20000000000000; // Any integer up to 2^53 can be precisely represented by a double.
BSON.JS_INT_MIN = -0x20000000000000; // Any integer down to -2^53 can be precisely represented by a double.
// Internal long versions
var JS_INT_MAX_LONG = Long.fromNumber(0x20000000000000); // Any integer up to 2^53 can be precisely represented by a double.
var JS_INT_MIN_LONG = Long.fromNumber(-0x20000000000000); // Any integer down to -2^53 can be precisely represented by a double.
module.exports = deserialize
... ...
"use strict"
var writeIEEE754 = require('../float_parser').writeIEEE754,
readIEEE754 = require('../float_parser').readIEEE754,
Long = require('../long').Long,
Map = require('../map'),
Double = require('../double').Double,
Timestamp = require('../timestamp').Timestamp,
ObjectID = require('../objectid').ObjectID,
Symbol = require('../symbol').Symbol,
Code = require('../code').Code,
BSONRegExp = require('../regexp').BSONRegExp,
Int32 = require('../int_32').Int32,
MinKey = require('../min_key').MinKey,
MaxKey = require('../max_key').MaxKey,
Decimal128 = require('../decimal128'),
DBRef = require('../db_ref').DBRef,
Binary = require('../binary').Binary;
try {
var _Buffer = Uint8Array;
} catch(e) {
var _Buffer = Buffer;
}
var regexp = /\x00/
// To ensure that 0.4 of node works correctly
var isDate = function isDate(d) {
return typeof d === 'object' && Object.prototype.toString.call(d) === '[object Date]';
}
var isRegExp = function isRegExp(d) {
return Object.prototype.toString.call(d) === '[object RegExp]';
}
var serializeString = function(buffer, key, value, index, isArray) {
// Encode String type
buffer[index++] = BSON.BSON_DATA_STRING;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes + 1;
buffer[index - 1] = 0;
// Write the string
var size = buffer.write(value, index + 4, 'utf8');
// Write the size of the string to buffer
buffer[index + 3] = (size + 1 >> 24) & 0xff;
buffer[index + 2] = (size + 1 >> 16) & 0xff;
buffer[index + 1] = (size + 1 >> 8) & 0xff;
buffer[index] = size + 1 & 0xff;
// Update index
index = index + 4 + size;
// Write zero
buffer[index++] = 0;
return index;
}
var serializeNumber = function(buffer, key, value, index, isArray) {
// We have an integer value
if(Math.floor(value) === value && value >= BSON.JS_INT_MIN && value <= BSON.JS_INT_MAX) {
// If the value fits in 32 bits encode as int, if it fits in a double
// encode it as a double, otherwise long
if(value >= BSON.BSON_INT32_MIN && value <= BSON.BSON_INT32_MAX) {
// Set int type 32 bits or less
buffer[index++] = BSON.BSON_DATA_INT;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the int value
buffer[index++] = value & 0xff;
buffer[index++] = (value >> 8) & 0xff;
buffer[index++] = (value >> 16) & 0xff;
buffer[index++] = (value >> 24) & 0xff;
} else if(value >= BSON.JS_INT_MIN && value <= BSON.JS_INT_MAX) {
// Encode as double
buffer[index++] = BSON.BSON_DATA_NUMBER;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write float
writeIEEE754(buffer, value, index, 'little', 52, 8);
// Ajust index
index = index + 8;
} else {
// Set long type
buffer[index++] = BSON.BSON_DATA_LONG;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
var longVal = Long.fromNumber(value);
var lowBits = longVal.getLowBits();
var highBits = longVal.getHighBits();
// Encode low bits
buffer[index++] = lowBits & 0xff;
buffer[index++] = (lowBits >> 8) & 0xff;
buffer[index++] = (lowBits >> 16) & 0xff;
buffer[index++] = (lowBits >> 24) & 0xff;
// Encode high bits
buffer[index++] = highBits & 0xff;
buffer[index++] = (highBits >> 8) & 0xff;
buffer[index++] = (highBits >> 16) & 0xff;
buffer[index++] = (highBits >> 24) & 0xff;
}
} else {
// Encode as double
buffer[index++] = BSON.BSON_DATA_NUMBER;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write float
writeIEEE754(buffer, value, index, 'little', 52, 8);
// Ajust index
index = index + 8;
}
return index;
}
var serializeNull = function(buffer, key, value, index, isArray) {
// Set long type
buffer[index++] = BSON.BSON_DATA_NULL;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
return index;
}
var serializeBoolean = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_BOOLEAN;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Encode the boolean value
buffer[index++] = value ? 1 : 0;
return index;
}
var serializeDate = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_DATE;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the date
var dateInMilis = Long.fromNumber(value.getTime());
var lowBits = dateInMilis.getLowBits();
var highBits = dateInMilis.getHighBits();
// Encode low bits
buffer[index++] = lowBits & 0xff;
buffer[index++] = (lowBits >> 8) & 0xff;
buffer[index++] = (lowBits >> 16) & 0xff;
buffer[index++] = (lowBits >> 24) & 0xff;
// Encode high bits
buffer[index++] = highBits & 0xff;
buffer[index++] = (highBits >> 8) & 0xff;
buffer[index++] = (highBits >> 16) & 0xff;
buffer[index++] = (highBits >> 24) & 0xff;
return index;
}
var serializeRegExp = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_REGEXP;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
if (value.source && value.source.match(regexp) != null) {
throw Error("value " + value.source + " must not contain null bytes");
}
// Adjust the index
index = index + buffer.write(value.source, index, 'utf8');
// Write zero
buffer[index++] = 0x00;
// Write the parameters
if(value.global) buffer[index++] = 0x73; // s
if(value.ignoreCase) buffer[index++] = 0x69; // i
if(value.multiline) buffer[index++] = 0x6d; // m
// Add ending zero
buffer[index++] = 0x00;
return index;
}
var serializeBSONRegExp = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_REGEXP;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Check the pattern for 0 bytes
if (value.pattern.match(regexp) != null) {
// The BSON spec doesn't allow keys with null bytes because keys are
// null-terminated.
throw Error("pattern " + value.pattern + " must not contain null bytes");
}
// Adjust the index
index = index + buffer.write(value.pattern, index, 'utf8');
// Write zero
buffer[index++] = 0x00;
// Write the options
index = index + buffer.write(value.options.split('').sort().join(''), index, 'utf8');
// Add ending zero
buffer[index++] = 0x00;
return index;
}
var serializeMinMax = function(buffer, key, value, index, isArray) {
// Write the type of either min or max key
if(value === null) {
buffer[index++] = BSON.BSON_DATA_NULL;
} else if(value instanceof MinKey) {
buffer[index++] = BSON.BSON_DATA_MIN_KEY;
} else {
buffer[index++] = BSON.BSON_DATA_MAX_KEY;
}
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
return index;
}
var serializeObjectId = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_OID;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the objectId into the shared buffer
if(typeof value.id == 'string') {
buffer.write(value.id, index, 'binary')
} else if(value.id && value.id.copy){
value.id.copy(buffer, index, 0, 12);
} else {
throw new Error('object [' + JSON.stringify(value) + "] is not a valid ObjectId");
}
// Ajust index
return index + 12;
}
var serializeBuffer = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_BINARY;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Get size of the buffer (current write point)
var size = value.length;
// Write the size of the string to buffer
buffer[index++] = size & 0xff;
buffer[index++] = (size >> 8) & 0xff;
buffer[index++] = (size >> 16) & 0xff;
buffer[index++] = (size >> 24) & 0xff;
// Write the default subtype
buffer[index++] = BSON.BSON_BINARY_SUBTYPE_DEFAULT;
// Copy the content form the binary field to the buffer
value.copy(buffer, index, 0, size);
// Adjust the index
index = index + size;
return index;
}
var serializeObject = function(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, isArray, path) {
for(var i = 0; i < path.length; i++) {
if(path[i] === value) throw new Error('cyclic dependency detected');
}
// Push value to stack
path.push(value);
// Write the type
buffer[index++] = Array.isArray(value) ? BSON.BSON_DATA_ARRAY : BSON.BSON_DATA_OBJECT;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
var endIndex = serializeInto(buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path);
// Pop stack
path.pop();
// Write size
var size = endIndex - index;
return endIndex;
}
var serializeDecimal128 = function(buffer, key, value, index, isArray) {
buffer[index++] = BSON.BSON_DATA_DECIMAL128;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the data from the value
value.bytes.copy(buffer, index, 0, 16);
return index + 16;
}
var serializeLong = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = value._bsontype == 'Long' ? BSON.BSON_DATA_LONG : BSON.BSON_DATA_TIMESTAMP;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the date
var lowBits = value.getLowBits();
var highBits = value.getHighBits();
// Encode low bits
buffer[index++] = lowBits & 0xff;
buffer[index++] = (lowBits >> 8) & 0xff;
buffer[index++] = (lowBits >> 16) & 0xff;
buffer[index++] = (lowBits >> 24) & 0xff;
// Encode high bits
buffer[index++] = highBits & 0xff;
buffer[index++] = (highBits >> 8) & 0xff;
buffer[index++] = (highBits >> 16) & 0xff;
buffer[index++] = (highBits >> 24) & 0xff;
return index;
}
var serializeInt32 = function(buffer, key, value, index, isArray) {
// Set int type 32 bits or less
buffer[index++] = BSON.BSON_DATA_INT;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the int value
buffer[index++] = value & 0xff;
buffer[index++] = (value >> 8) & 0xff;
buffer[index++] = (value >> 16) & 0xff;
buffer[index++] = (value >> 24) & 0xff;
return index;
}
var serializeDouble = function(buffer, key, value, index, isArray) {
// Encode as double
buffer[index++] = BSON.BSON_DATA_NUMBER;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write float
writeIEEE754(buffer, value, index, 'little', 52, 8);
// Ajust index
index = index + 8;
return index;
}
var serializeFunction = function(buffer, key, value, index, checkKeys, depth, isArray) {
buffer[index++] = BSON.BSON_DATA_CODE;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Function string
var functionString = value.toString();
// Write the string
var size = buffer.write(functionString, index + 4, 'utf8') + 1;
// Write the size of the string to buffer
buffer[index] = size & 0xff;
buffer[index + 1] = (size >> 8) & 0xff;
buffer[index + 2] = (size >> 16) & 0xff;
buffer[index + 3] = (size >> 24) & 0xff;
// Update index
index = index + 4 + size - 1;
// Write zero
buffer[index++] = 0;
return index;
}
var serializeCode = function(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, isArray) {
if(value.scope && typeof value.scope == 'object') {
// Write the type
buffer[index++] = BSON.BSON_DATA_CODE_W_SCOPE;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Starting index
var startIndex = index;
// Serialize the function
// Get the function string
var functionString = typeof value.code == 'string' ? value.code : value.code.toString();
// Index adjustment
index = index + 4;
// Write string into buffer
var codeSize = buffer.write(functionString, index + 4, 'utf8') + 1;
// Write the size of the string to buffer
buffer[index] = codeSize & 0xff;
buffer[index + 1] = (codeSize >> 8) & 0xff;
buffer[index + 2] = (codeSize >> 16) & 0xff;
buffer[index + 3] = (codeSize >> 24) & 0xff;
// Write end 0
buffer[index + 4 + codeSize - 1] = 0;
// Write the
index = index + codeSize + 4;
//
// Serialize the scope value
var endIndex = serializeInto(buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined)
index = endIndex - 1;
// Writ the total
var totalSize = endIndex - startIndex;
// Write the total size of the object
buffer[startIndex++] = totalSize & 0xff;
buffer[startIndex++] = (totalSize >> 8) & 0xff;
buffer[startIndex++] = (totalSize >> 16) & 0xff;
buffer[startIndex++] = (totalSize >> 24) & 0xff;
// Write trailing zero
buffer[index++] = 0;
} else {
buffer[index++] = BSON.BSON_DATA_CODE;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Function string
var functionString = value.code.toString();
// Write the string
var size = buffer.write(functionString, index + 4, 'utf8') + 1;
// Write the size of the string to buffer
buffer[index] = size & 0xff;
buffer[index + 1] = (size >> 8) & 0xff;
buffer[index + 2] = (size >> 16) & 0xff;
buffer[index + 3] = (size >> 24) & 0xff;
// Update index
index = index + 4 + size - 1;
// Write zero
buffer[index++] = 0;
}
return index;
}
var serializeBinary = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_BINARY;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Extract the buffer
var data = value.value(true);
// Calculate size
var size = value.position;
// Add the deprecated 02 type 4 bytes of size to total
if(value.sub_type == Binary.SUBTYPE_BYTE_ARRAY) size = size + 4;
// Write the size of the string to buffer
buffer[index++] = size & 0xff;
buffer[index++] = (size >> 8) & 0xff;
buffer[index++] = (size >> 16) & 0xff;
buffer[index++] = (size >> 24) & 0xff;
// Write the subtype to the buffer
buffer[index++] = value.sub_type;
// If we have binary type 2 the 4 first bytes are the size
if(value.sub_type == Binary.SUBTYPE_BYTE_ARRAY) {
size = size - 4;
buffer[index++] = size & 0xff;
buffer[index++] = (size >> 8) & 0xff;
buffer[index++] = (size >> 16) & 0xff;
buffer[index++] = (size >> 24) & 0xff;
}
// Write the data to the object
data.copy(buffer, index, 0, value.position);
// Adjust the index
index = index + value.position;
return index;
}
var serializeSymbol = function(buffer, key, value, index, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_SYMBOL;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
// Write the string
var size = buffer.write(value.value, index + 4, 'utf8') + 1;
// Write the size of the string to buffer
buffer[index] = size & 0xff;
buffer[index + 1] = (size >> 8) & 0xff;
buffer[index + 2] = (size >> 16) & 0xff;
buffer[index + 3] = (size >> 24) & 0xff;
// Update index
index = index + 4 + size - 1;
// Write zero
buffer[index++] = 0x00;
return index;
}
var serializeDBRef = function(buffer, key, value, index, depth, serializeFunctions, isArray) {
// Write the type
buffer[index++] = BSON.BSON_DATA_OBJECT;
// Number of written bytes
var numberOfWrittenBytes = !isArray ? buffer.write(key, index, 'utf8') : buffer.write(key, index, 'ascii');
// Encode the name
index = index + numberOfWrittenBytes;
buffer[index++] = 0;
var startIndex = index;
var endIndex;
// Serialize object
if(null != value.db) {
endIndex = serializeInto(buffer, {
'$ref': value.namespace
, '$id' : value.oid
, '$db' : value.db
}, false, index, depth + 1, serializeFunctions);
} else {
endIndex = serializeInto(buffer, {
'$ref': value.namespace
, '$id' : value.oid
}, false, index, depth + 1, serializeFunctions);
}
// Calculate object size
var size = endIndex - startIndex;
// Write the size
buffer[startIndex++] = size & 0xff;
buffer[startIndex++] = (size >> 8) & 0xff;
buffer[startIndex++] = (size >> 16) & 0xff;
buffer[startIndex++] = (size >> 24) & 0xff;
// Set index
return endIndex;
}
var serializeInto = function serializeInto(buffer, object, checkKeys, startingIndex, depth, serializeFunctions, ignoreUndefined, path) {
startingIndex = startingIndex || 0;
path = path || [];
// Push the object to the path
path.push(object);
// Start place to serialize into
var index = startingIndex + 4;
var self = this;
// Special case isArray
if(Array.isArray(object)) {
// Get object keys
for(var i = 0; i < object.length; i++) {
var key = "" + i;
var value = object[i];
// Is there an override value
if(value && value.toBSON) {
if(typeof value.toBSON != 'function') throw new Error("toBSON is not a function");
value = value.toBSON();
}
var type = typeof value;
if(type == 'string') {
index = serializeString(buffer, key, value, index, true);
} else if(type == 'number') {
index = serializeNumber(buffer, key, value, index, true);
} else if(type == 'boolean') {
index = serializeBoolean(buffer, key, value, index, true);
} else if(value instanceof Date || isDate(value)) {
index = serializeDate(buffer, key, value, index, true);
} else if(value === undefined) {
index = serializeNull(buffer, key, value, index, true);
} else if(value === null) {
index = serializeNull(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'ObjectID') {
index = serializeObjectId(buffer, key, value, index, true);
} else if(Buffer.isBuffer(value)) {
index = serializeBuffer(buffer, key, value, index, true);
} else if(value instanceof RegExp || isRegExp(value)) {
index = serializeRegExp(buffer, key, value, index, true);
} else if(type == 'object' && value['_bsontype'] == null) {
index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, true, path);
} else if(type == 'object' && value['_bsontype'] == 'Decimal128') {
index = serializeDecimal128(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'Long' || value['_bsontype'] == 'Timestamp') {
index = serializeLong(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'Double') {
index = serializeDouble(buffer, key, value, index, true);
} else if(typeof value == 'function' && serializeFunctions) {
index = serializeFunction(buffer, key, value, index, checkKeys, depth, serializeFunctions, true);
} else if(value['_bsontype'] == 'Code') {
index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, true);
} else if(value['_bsontype'] == 'Binary') {
index = serializeBinary(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'Symbol') {
index = serializeSymbol(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'DBRef') {
index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions, true);
} else if(value['_bsontype'] == 'BSONRegExp') {
index = serializeBSONRegExp(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'Int32') {
index = serializeInt32(buffer, key, value, index, true);
} else if(value['_bsontype'] == 'MinKey' || value['_bsontype'] == 'MaxKey') {
index = serializeMinMax(buffer, key, value, index, true);
}
}
} else if(object instanceof Map) {
var iterator = object.entries();
var done = false;
while(!done) {
// Unpack the next entry
var entry = iterator.next();
done = entry.done;
// Are we done, then skip and terminate
if(done) continue;
// Get the entry values
var key = entry.value[0];
var value = entry.value[1];
// Check the type of the value
var type = typeof value;
// Check the key and throw error if it's illegal
if(key != '$db' && key != '$ref' && key != '$id') {
if (key.match(regexp) != null) {
// The BSON spec doesn't allow keys with null bytes because keys are
// null-terminated.
throw Error("key " + key + " must not contain null bytes");
}
if (checkKeys) {
if('$' == key[0]) {
throw Error("key " + key + " must not start with '$'");
} else if (!!~key.indexOf('.')) {
throw Error("key " + key + " must not contain '.'");
}
}
}
if(type == 'string') {
index = serializeString(buffer, key, value, index);
} else if(type == 'number') {
index = serializeNumber(buffer, key, value, index);
} else if(type == 'boolean') {
index = serializeBoolean(buffer, key, value, index);
} else if(value instanceof Date || isDate(value)) {
index = serializeDate(buffer, key, value, index);
} else if(value === undefined && ignoreUndefined == true) {
} else if(value === null || value === undefined) {
index = serializeNull(buffer, key, value, index);
} else if(value['_bsontype'] == 'ObjectID') {
index = serializeObjectId(buffer, key, value, index);
} else if(Buffer.isBuffer(value)) {
index = serializeBuffer(buffer, key, value, index);
} else if(value instanceof RegExp || isRegExp(value)) {
index = serializeRegExp(buffer, key, value, index);
} else if(type == 'object' && value['_bsontype'] == null) {
index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, false, path);
} else if(type == 'object' && value['_bsontype'] == 'Decimal128') {
index = serializeDecimal128(buffer, key, value, index);
} else if(value['_bsontype'] == 'Long' || value['_bsontype'] == 'Timestamp') {
index = serializeLong(buffer, key, value, index);
} else if(value['_bsontype'] == 'Double') {
index = serializeDouble(buffer, key, value, index);
} else if(value['_bsontype'] == 'Code') {
index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined);
} else if(typeof value == 'function' && serializeFunctions) {
index = serializeFunction(buffer, key, value, index, checkKeys, depth, serializeFunctions);
} else if(value['_bsontype'] == 'Binary') {
index = serializeBinary(buffer, key, value, index);
} else if(value['_bsontype'] == 'Symbol') {
index = serializeSymbol(buffer, key, value, index);
} else if(value['_bsontype'] == 'DBRef') {
index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions);
} else if(value['_bsontype'] == 'BSONRegExp') {
index = serializeBSONRegExp(buffer, key, value, index);
} else if(value['_bsontype'] == 'Int32') {
index = serializeInt32(buffer, key, value, index);
} else if(value['_bsontype'] == 'MinKey' || value['_bsontype'] == 'MaxKey') {
index = serializeMinMax(buffer, key, value, index);
}
}
} else {
// Did we provide a custom serialization method
if(object.toBSON) {
if(typeof object.toBSON != 'function') throw new Error("toBSON is not a function");
object = object.toBSON();
if(object != null && typeof object != 'object') throw new Error("toBSON function did not return an object");
}
// Iterate over all the keys
for(var key in object) {
var value = object[key];
// Is there an override value
if(value && value.toBSON) {
if(typeof value.toBSON != 'function') throw new Error("toBSON is not a function");
value = value.toBSON();
}
// Check the type of the value
var type = typeof value;
// Check the key and throw error if it's illegal
if(key != '$db' && key != '$ref' && key != '$id') {
if (key.match(regexp) != null) {
// The BSON spec doesn't allow keys with null bytes because keys are
// null-terminated.
throw Error("key " + key + " must not contain null bytes");
}
if (checkKeys) {
if('$' == key[0]) {
throw Error("key " + key + " must not start with '$'");
} else if (!!~key.indexOf('.')) {
throw Error("key " + key + " must not contain '.'");
}
}
}
if(type == 'string') {
index = serializeString(buffer, key, value, index);
} else if(type == 'number') {
index = serializeNumber(buffer, key, value, index);
} else if(type == 'boolean') {
index = serializeBoolean(buffer, key, value, index);
} else if(value instanceof Date || isDate(value)) {
index = serializeDate(buffer, key, value, index);
} else if(value === undefined && ignoreUndefined == true) {
} else if(value === null || value === undefined) {
index = serializeNull(buffer, key, value, index);
} else if(value['_bsontype'] == 'ObjectID') {
index = serializeObjectId(buffer, key, value, index);
} else if(Buffer.isBuffer(value)) {
index = serializeBuffer(buffer, key, value, index);
} else if(value instanceof RegExp || isRegExp(value)) {
index = serializeRegExp(buffer, key, value, index);
} else if(type == 'object' && value['_bsontype'] == null) {
index = serializeObject(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, false, path);
} else if(type == 'object' && value['_bsontype'] == 'Decimal128') {
index = serializeDecimal128(buffer, key, value, index);
} else if(value['_bsontype'] == 'Long' || value['_bsontype'] == 'Timestamp') {
index = serializeLong(buffer, key, value, index);
} else if(value['_bsontype'] == 'Double') {
index = serializeDouble(buffer, key, value, index);
} else if(value['_bsontype'] == 'Code') {
index = serializeCode(buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined);
} else if(typeof value == 'function' && serializeFunctions) {
index = serializeFunction(buffer, key, value, index, checkKeys, depth, serializeFunctions);
} else if(value['_bsontype'] == 'Binary') {
index = serializeBinary(buffer, key, value, index);
} else if(value['_bsontype'] == 'Symbol') {
index = serializeSymbol(buffer, key, value, index);
} else if(value['_bsontype'] == 'DBRef') {
index = serializeDBRef(buffer, key, value, index, depth, serializeFunctions);
} else if(value['_bsontype'] == 'BSONRegExp') {
index = serializeBSONRegExp(buffer, key, value, index);
} else if(value['_bsontype'] == 'Int32') {
index = serializeInt32(buffer, key, value, index);
} else if(value['_bsontype'] == 'MinKey' || value['_bsontype'] == 'MaxKey') {
index = serializeMinMax(buffer, key, value, index);
}
}
}
// Remove the path
path.pop();
// Final padding byte for object
buffer[index++] = 0x00;
// Final size
var size = index - startingIndex;
// Write the size of the object
buffer[startingIndex++] = size & 0xff;
buffer[startingIndex++] = (size >> 8) & 0xff;
buffer[startingIndex++] = (size >> 16) & 0xff;
buffer[startingIndex++] = (size >> 24) & 0xff;
return index;
}
var BSON = {};
/**
* Contains the function cache if we have that enable to allow for avoiding the eval step on each deserialization, comparison is by md5
*
* @ignore
* @api private
*/
var functionCache = BSON.functionCache = {};
/**
* Number BSON Type
*
* @classconstant BSON_DATA_NUMBER
**/
BSON.BSON_DATA_NUMBER = 1;
/**
* String BSON Type
*
* @classconstant BSON_DATA_STRING
**/
BSON.BSON_DATA_STRING = 2;
/**
* Object BSON Type
*
* @classconstant BSON_DATA_OBJECT
**/
BSON.BSON_DATA_OBJECT = 3;
/**
* Array BSON Type
*
* @classconstant BSON_DATA_ARRAY
**/
BSON.BSON_DATA_ARRAY = 4;
/**
* Binary BSON Type
*
* @classconstant BSON_DATA_BINARY
**/
BSON.BSON_DATA_BINARY = 5;
/**
* ObjectID BSON Type, deprecated
*
* @classconstant BSON_DATA_UNDEFINED
**/
BSON.BSON_DATA_UNDEFINED = 6;
/**
* ObjectID BSON Type
*
* @classconstant BSON_DATA_OID
**/
BSON.BSON_DATA_OID = 7;
/**
* Boolean BSON Type
*
* @classconstant BSON_DATA_BOOLEAN
**/
BSON.BSON_DATA_BOOLEAN = 8;
/**
* Date BSON Type
*
* @classconstant BSON_DATA_DATE
**/
BSON.BSON_DATA_DATE = 9;
/**
* null BSON Type
*
* @classconstant BSON_DATA_NULL
**/
BSON.BSON_DATA_NULL = 10;
/**
* RegExp BSON Type
*
* @classconstant BSON_DATA_REGEXP
**/
BSON.BSON_DATA_REGEXP = 11;
/**
* Code BSON Type
*
* @classconstant BSON_DATA_CODE
**/
BSON.BSON_DATA_CODE = 13;
/**
* Symbol BSON Type
*
* @classconstant BSON_DATA_SYMBOL
**/
BSON.BSON_DATA_SYMBOL = 14;
/**
* Code with Scope BSON Type
*
* @classconstant BSON_DATA_CODE_W_SCOPE
**/
BSON.BSON_DATA_CODE_W_SCOPE = 15;
/**
* 32 bit Integer BSON Type
*
* @classconstant BSON_DATA_INT
**/
BSON.BSON_DATA_INT = 16;
/**
* Timestamp BSON Type
*
* @classconstant BSON_DATA_TIMESTAMP
**/
BSON.BSON_DATA_TIMESTAMP = 17;
/**
* Long BSON Type
*
* @classconstant BSON_DATA_LONG
**/
BSON.BSON_DATA_LONG = 18;
/**
* Long BSON Type
*
* @classconstant BSON_DATA_DECIMAL128
**/
BSON.BSON_DATA_DECIMAL128 = 19;
/**
* MinKey BSON Type
*
* @classconstant BSON_DATA_MIN_KEY
**/
BSON.BSON_DATA_MIN_KEY = 0xff;
/**
* MaxKey BSON Type
*
* @classconstant BSON_DATA_MAX_KEY
**/
BSON.BSON_DATA_MAX_KEY = 0x7f;
/**
* Binary Default Type
*
* @classconstant BSON_BINARY_SUBTYPE_DEFAULT
**/
BSON.BSON_BINARY_SUBTYPE_DEFAULT = 0;
/**
* Binary Function Type
*
* @classconstant BSON_BINARY_SUBTYPE_FUNCTION
**/
BSON.BSON_BINARY_SUBTYPE_FUNCTION = 1;
/**
* Binary Byte Array Type
*
* @classconstant BSON_BINARY_SUBTYPE_BYTE_ARRAY
**/
BSON.BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2;
/**
* Binary UUID Type
*
* @classconstant BSON_BINARY_SUBTYPE_UUID
**/
BSON.BSON_BINARY_SUBTYPE_UUID = 3;
/**
* Binary MD5 Type
*
* @classconstant BSON_BINARY_SUBTYPE_MD5
**/
BSON.BSON_BINARY_SUBTYPE_MD5 = 4;
/**
* Binary User Defined Type
*
* @classconstant BSON_BINARY_SUBTYPE_USER_DEFINED
**/
BSON.BSON_BINARY_SUBTYPE_USER_DEFINED = 128;
// BSON MAX VALUES
BSON.BSON_INT32_MAX = 0x7FFFFFFF;
BSON.BSON_INT32_MIN = -0x80000000;
BSON.BSON_INT64_MAX = Math.pow(2, 63) - 1;
BSON.BSON_INT64_MIN = -Math.pow(2, 63);
// JS MAX PRECISE VALUES
BSON.JS_INT_MAX = 0x20000000000000; // Any integer up to 2^53 can be precisely represented by a double.
BSON.JS_INT_MIN = -0x20000000000000; // Any integer down to -2^53 can be precisely represented by a double.
// Internal long versions
var JS_INT_MAX_LONG = Long.fromNumber(0x20000000000000); // Any integer up to 2^53 can be precisely represented by a double.
var JS_INT_MIN_LONG = Long.fromNumber(-0x20000000000000); // Any integer down to -2^53 can be precisely represented by a double.
module.exports = serializeInto;
... ...
/**
* A class representation of the BSON RegExp type.
*
* @class
* @return {BSONRegExp} A MinKey instance
*/
function BSONRegExp(pattern, options) {
if(!(this instanceof BSONRegExp)) return new BSONRegExp();
// Execute
this._bsontype = 'BSONRegExp';
this.pattern = pattern || '';
this.options = options || '';
// Validate options
for(var i = 0; i < this.options.length; i++) {
if(!(this.options[i] == 'i'
|| this.options[i] == 'm'
|| this.options[i] == 'x'
|| this.options[i] == 'l'
|| this.options[i] == 's'
|| this.options[i] == 'u'
)) {
throw new Error('the regular expression options [' + this.options[i] + "] is not supported");
}
}
}
module.exports = BSONRegExp;
module.exports.BSONRegExp = BSONRegExp;
... ...
/**
* A class representation of the BSON Symbol type.
*
* @class
* @deprecated
* @param {string} value the string representing the symbol.
* @return {Symbol}
*/
function Symbol(value) {
if(!(this instanceof Symbol)) return new Symbol(value);
this._bsontype = 'Symbol';
this.value = value;
}
/**
* Access the wrapped string value.
*
* @method
* @return {String} returns the wrapped string.
*/
Symbol.prototype.valueOf = function() {
return this.value;
};
/**
* @ignore
*/
Symbol.prototype.toString = function() {
return this.value;
}
/**
* @ignore
*/
Symbol.prototype.inspect = function() {
return this.value;
}
/**
* @ignore
*/
Symbol.prototype.toJSON = function() {
return this.value;
}
module.exports = Symbol;
module.exports.Symbol = Symbol;
\ No newline at end of file
... ...
// Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright 2009 Google Inc. All Rights Reserved
/**
* This type is for INTERNAL use in MongoDB only and should not be used in applications.
* The appropriate corresponding type is the JavaScript Date type.
*
* Defines a Timestamp class for representing a 64-bit two's-complement
* integer value, which faithfully simulates the behavior of a Java "Timestamp". This
* implementation is derived from TimestampLib in GWT.
*
* Constructs a 64-bit two's-complement integer, given its low and high 32-bit
* values as *signed* integers. See the from* functions below for more
* convenient ways of constructing Timestamps.
*
* The internal representation of a Timestamp is the two given signed, 32-bit values.
* We use 32-bit pieces because these are the size of integers on which
* Javascript performs bit-operations. For operations like addition and
* multiplication, we split each number into 16-bit pieces, which can easily be
* multiplied within Javascript's floating-point representation without overflow
* or change in sign.
*
* In the algorithms below, we frequently reduce the negative case to the
* positive case by negating the input(s) and then post-processing the result.
* Note that we must ALWAYS check specially whether those values are MIN_VALUE
* (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
* a positive number, it overflows back into a negative). Not handling this
* case would often result in infinite recursion.
*
* @class
* @param {number} low the low (signed) 32 bits of the Timestamp.
* @param {number} high the high (signed) 32 bits of the Timestamp.
*/
function Timestamp(low, high) {
if(!(this instanceof Timestamp)) return new Timestamp(low, high);
this._bsontype = 'Timestamp';
/**
* @type {number}
* @ignore
*/
this.low_ = low | 0; // force into 32 signed bits.
/**
* @type {number}
* @ignore
*/
this.high_ = high | 0; // force into 32 signed bits.
};
/**
* Return the int value.
*
* @return {number} the value, assuming it is a 32-bit integer.
*/
Timestamp.prototype.toInt = function() {
return this.low_;
};
/**
* Return the Number value.
*
* @method
* @return {number} the closest floating-point representation to this value.
*/
Timestamp.prototype.toNumber = function() {
return this.high_ * Timestamp.TWO_PWR_32_DBL_ +
this.getLowBitsUnsigned();
};
/**
* Return the JSON value.
*
* @method
* @return {string} the JSON representation.
*/
Timestamp.prototype.toJSON = function() {
return this.toString();
}
/**
* Return the String value.
*
* @method
* @param {number} [opt_radix] the radix in which the text should be written.
* @return {string} the textual representation of this value.
*/
Timestamp.prototype.toString = function(opt_radix) {
var radix = opt_radix || 10;
if (radix < 2 || 36 < radix) {
throw Error('radix out of range: ' + radix);
}
if (this.isZero()) {
return '0';
}
if (this.isNegative()) {
if (this.equals(Timestamp.MIN_VALUE)) {
// We need to change the Timestamp value before it can be negated, so we remove
// the bottom-most digit in this base and then recurse to do the rest.
var radixTimestamp = Timestamp.fromNumber(radix);
var div = this.div(radixTimestamp);
var rem = div.multiply(radixTimestamp).subtract(this);
return div.toString(radix) + rem.toInt().toString(radix);
} else {
return '-' + this.negate().toString(radix);
}
}
// Do several (6) digits each time through the loop, so as to
// minimize the calls to the very expensive emulated div.
var radixToPower = Timestamp.fromNumber(Math.pow(radix, 6));
var rem = this;
var result = '';
while (true) {
var remDiv = rem.div(radixToPower);
var intval = rem.subtract(remDiv.multiply(radixToPower)).toInt();
var digits = intval.toString(radix);
rem = remDiv;
if (rem.isZero()) {
return digits + result;
} else {
while (digits.length < 6) {
digits = '0' + digits;
}
result = '' + digits + result;
}
}
};
/**
* Return the high 32-bits value.
*
* @method
* @return {number} the high 32-bits as a signed value.
*/
Timestamp.prototype.getHighBits = function() {
return this.high_;
};
/**
* Return the low 32-bits value.
*
* @method
* @return {number} the low 32-bits as a signed value.
*/
Timestamp.prototype.getLowBits = function() {
return this.low_;
};
/**
* Return the low unsigned 32-bits value.
*
* @method
* @return {number} the low 32-bits as an unsigned value.
*/
Timestamp.prototype.getLowBitsUnsigned = function() {
return (this.low_ >= 0) ?
this.low_ : Timestamp.TWO_PWR_32_DBL_ + this.low_;
};
/**
* Returns the number of bits needed to represent the absolute value of this Timestamp.
*
* @method
* @return {number} Returns the number of bits needed to represent the absolute value of this Timestamp.
*/
Timestamp.prototype.getNumBitsAbs = function() {
if (this.isNegative()) {
if (this.equals(Timestamp.MIN_VALUE)) {
return 64;
} else {
return this.negate().getNumBitsAbs();
}
} else {
var val = this.high_ != 0 ? this.high_ : this.low_;
for (var bit = 31; bit > 0; bit--) {
if ((val & (1 << bit)) != 0) {
break;
}
}
return this.high_ != 0 ? bit + 33 : bit + 1;
}
};
/**
* Return whether this value is zero.
*
* @method
* @return {boolean} whether this value is zero.
*/
Timestamp.prototype.isZero = function() {
return this.high_ == 0 && this.low_ == 0;
};
/**
* Return whether this value is negative.
*
* @method
* @return {boolean} whether this value is negative.
*/
Timestamp.prototype.isNegative = function() {
return this.high_ < 0;
};
/**
* Return whether this value is odd.
*
* @method
* @return {boolean} whether this value is odd.
*/
Timestamp.prototype.isOdd = function() {
return (this.low_ & 1) == 1;
};
/**
* Return whether this Timestamp equals the other
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} whether this Timestamp equals the other
*/
Timestamp.prototype.equals = function(other) {
return (this.high_ == other.high_) && (this.low_ == other.low_);
};
/**
* Return whether this Timestamp does not equal the other.
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} whether this Timestamp does not equal the other.
*/
Timestamp.prototype.notEquals = function(other) {
return (this.high_ != other.high_) || (this.low_ != other.low_);
};
/**
* Return whether this Timestamp is less than the other.
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} whether this Timestamp is less than the other.
*/
Timestamp.prototype.lessThan = function(other) {
return this.compare(other) < 0;
};
/**
* Return whether this Timestamp is less than or equal to the other.
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} whether this Timestamp is less than or equal to the other.
*/
Timestamp.prototype.lessThanOrEqual = function(other) {
return this.compare(other) <= 0;
};
/**
* Return whether this Timestamp is greater than the other.
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} whether this Timestamp is greater than the other.
*/
Timestamp.prototype.greaterThan = function(other) {
return this.compare(other) > 0;
};
/**
* Return whether this Timestamp is greater than or equal to the other.
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} whether this Timestamp is greater than or equal to the other.
*/
Timestamp.prototype.greaterThanOrEqual = function(other) {
return this.compare(other) >= 0;
};
/**
* Compares this Timestamp with the given one.
*
* @method
* @param {Timestamp} other Timestamp to compare against.
* @return {boolean} 0 if they are the same, 1 if the this is greater, and -1 if the given one is greater.
*/
Timestamp.prototype.compare = function(other) {
if (this.equals(other)) {
return 0;
}
var thisNeg = this.isNegative();
var otherNeg = other.isNegative();
if (thisNeg && !otherNeg) {
return -1;
}
if (!thisNeg && otherNeg) {
return 1;
}
// at this point, the signs are the same, so subtraction will not overflow
if (this.subtract(other).isNegative()) {
return -1;
} else {
return 1;
}
};
/**
* The negation of this value.
*
* @method
* @return {Timestamp} the negation of this value.
*/
Timestamp.prototype.negate = function() {
if (this.equals(Timestamp.MIN_VALUE)) {
return Timestamp.MIN_VALUE;
} else {
return this.not().add(Timestamp.ONE);
}
};
/**
* Returns the sum of this and the given Timestamp.
*
* @method
* @param {Timestamp} other Timestamp to add to this one.
* @return {Timestamp} the sum of this and the given Timestamp.
*/
Timestamp.prototype.add = function(other) {
// Divide each number into 4 chunks of 16 bits, and then sum the chunks.
var a48 = this.high_ >>> 16;
var a32 = this.high_ & 0xFFFF;
var a16 = this.low_ >>> 16;
var a00 = this.low_ & 0xFFFF;
var b48 = other.high_ >>> 16;
var b32 = other.high_ & 0xFFFF;
var b16 = other.low_ >>> 16;
var b00 = other.low_ & 0xFFFF;
var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
c00 += a00 + b00;
c16 += c00 >>> 16;
c00 &= 0xFFFF;
c16 += a16 + b16;
c32 += c16 >>> 16;
c16 &= 0xFFFF;
c32 += a32 + b32;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c48 += a48 + b48;
c48 &= 0xFFFF;
return Timestamp.fromBits((c16 << 16) | c00, (c48 << 16) | c32);
};
/**
* Returns the difference of this and the given Timestamp.
*
* @method
* @param {Timestamp} other Timestamp to subtract from this.
* @return {Timestamp} the difference of this and the given Timestamp.
*/
Timestamp.prototype.subtract = function(other) {
return this.add(other.negate());
};
/**
* Returns the product of this and the given Timestamp.
*
* @method
* @param {Timestamp} other Timestamp to multiply with this.
* @return {Timestamp} the product of this and the other.
*/
Timestamp.prototype.multiply = function(other) {
if (this.isZero()) {
return Timestamp.ZERO;
} else if (other.isZero()) {
return Timestamp.ZERO;
}
if (this.equals(Timestamp.MIN_VALUE)) {
return other.isOdd() ? Timestamp.MIN_VALUE : Timestamp.ZERO;
} else if (other.equals(Timestamp.MIN_VALUE)) {
return this.isOdd() ? Timestamp.MIN_VALUE : Timestamp.ZERO;
}
if (this.isNegative()) {
if (other.isNegative()) {
return this.negate().multiply(other.negate());
} else {
return this.negate().multiply(other).negate();
}
} else if (other.isNegative()) {
return this.multiply(other.negate()).negate();
}
// If both Timestamps are small, use float multiplication
if (this.lessThan(Timestamp.TWO_PWR_24_) &&
other.lessThan(Timestamp.TWO_PWR_24_)) {
return Timestamp.fromNumber(this.toNumber() * other.toNumber());
}
// Divide each Timestamp into 4 chunks of 16 bits, and then add up 4x4 products.
// We can skip products that would overflow.
var a48 = this.high_ >>> 16;
var a32 = this.high_ & 0xFFFF;
var a16 = this.low_ >>> 16;
var a00 = this.low_ & 0xFFFF;
var b48 = other.high_ >>> 16;
var b32 = other.high_ & 0xFFFF;
var b16 = other.low_ >>> 16;
var b00 = other.low_ & 0xFFFF;
var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
c00 += a00 * b00;
c16 += c00 >>> 16;
c00 &= 0xFFFF;
c16 += a16 * b00;
c32 += c16 >>> 16;
c16 &= 0xFFFF;
c16 += a00 * b16;
c32 += c16 >>> 16;
c16 &= 0xFFFF;
c32 += a32 * b00;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c32 += a16 * b16;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c32 += a00 * b32;
c48 += c32 >>> 16;
c32 &= 0xFFFF;
c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
c48 &= 0xFFFF;
return Timestamp.fromBits((c16 << 16) | c00, (c48 << 16) | c32);
};
/**
* Returns this Timestamp divided by the given one.
*
* @method
* @param {Timestamp} other Timestamp by which to divide.
* @return {Timestamp} this Timestamp divided by the given one.
*/
Timestamp.prototype.div = function(other) {
if (other.isZero()) {
throw Error('division by zero');
} else if (this.isZero()) {
return Timestamp.ZERO;
}
if (this.equals(Timestamp.MIN_VALUE)) {
if (other.equals(Timestamp.ONE) ||
other.equals(Timestamp.NEG_ONE)) {
return Timestamp.MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE
} else if (other.equals(Timestamp.MIN_VALUE)) {
return Timestamp.ONE;
} else {
// At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
var halfThis = this.shiftRight(1);
var approx = halfThis.div(other).shiftLeft(1);
if (approx.equals(Timestamp.ZERO)) {
return other.isNegative() ? Timestamp.ONE : Timestamp.NEG_ONE;
} else {
var rem = this.subtract(other.multiply(approx));
var result = approx.add(rem.div(other));
return result;
}
}
} else if (other.equals(Timestamp.MIN_VALUE)) {
return Timestamp.ZERO;
}
if (this.isNegative()) {
if (other.isNegative()) {
return this.negate().div(other.negate());
} else {
return this.negate().div(other).negate();
}
} else if (other.isNegative()) {
return this.div(other.negate()).negate();
}
// Repeat the following until the remainder is less than other: find a
// floating-point that approximates remainder / other *from below*, add this
// into the result, and subtract it from the remainder. It is critical that
// the approximate value is less than or equal to the real value so that the
// remainder never becomes negative.
var res = Timestamp.ZERO;
var rem = this;
while (rem.greaterThanOrEqual(other)) {
// Approximate the result of division. This may be a little greater or
// smaller than the actual value.
var approx = Math.max(1, Math.floor(rem.toNumber() / other.toNumber()));
// We will tweak the approximate result by changing it in the 48-th digit or
// the smallest non-fractional digit, whichever is larger.
var log2 = Math.ceil(Math.log(approx) / Math.LN2);
var delta = (log2 <= 48) ? 1 : Math.pow(2, log2 - 48);
// Decrease the approximation until it is smaller than the remainder. Note
// that if it is too large, the product overflows and is negative.
var approxRes = Timestamp.fromNumber(approx);
var approxRem = approxRes.multiply(other);
while (approxRem.isNegative() || approxRem.greaterThan(rem)) {
approx -= delta;
approxRes = Timestamp.fromNumber(approx);
approxRem = approxRes.multiply(other);
}
// We know the answer can't be zero... and actually, zero would cause
// infinite recursion since we would make no progress.
if (approxRes.isZero()) {
approxRes = Timestamp.ONE;
}
res = res.add(approxRes);
rem = rem.subtract(approxRem);
}
return res;
};
/**
* Returns this Timestamp modulo the given one.
*
* @method
* @param {Timestamp} other Timestamp by which to mod.
* @return {Timestamp} this Timestamp modulo the given one.
*/
Timestamp.prototype.modulo = function(other) {
return this.subtract(this.div(other).multiply(other));
};
/**
* The bitwise-NOT of this value.
*
* @method
* @return {Timestamp} the bitwise-NOT of this value.
*/
Timestamp.prototype.not = function() {
return Timestamp.fromBits(~this.low_, ~this.high_);
};
/**
* Returns the bitwise-AND of this Timestamp and the given one.
*
* @method
* @param {Timestamp} other the Timestamp with which to AND.
* @return {Timestamp} the bitwise-AND of this and the other.
*/
Timestamp.prototype.and = function(other) {
return Timestamp.fromBits(this.low_ & other.low_, this.high_ & other.high_);
};
/**
* Returns the bitwise-OR of this Timestamp and the given one.
*
* @method
* @param {Timestamp} other the Timestamp with which to OR.
* @return {Timestamp} the bitwise-OR of this and the other.
*/
Timestamp.prototype.or = function(other) {
return Timestamp.fromBits(this.low_ | other.low_, this.high_ | other.high_);
};
/**
* Returns the bitwise-XOR of this Timestamp and the given one.
*
* @method
* @param {Timestamp} other the Timestamp with which to XOR.
* @return {Timestamp} the bitwise-XOR of this and the other.
*/
Timestamp.prototype.xor = function(other) {
return Timestamp.fromBits(this.low_ ^ other.low_, this.high_ ^ other.high_);
};
/**
* Returns this Timestamp with bits shifted to the left by the given amount.
*
* @method
* @param {number} numBits the number of bits by which to shift.
* @return {Timestamp} this shifted to the left by the given amount.
*/
Timestamp.prototype.shiftLeft = function(numBits) {
numBits &= 63;
if (numBits == 0) {
return this;
} else {
var low = this.low_;
if (numBits < 32) {
var high = this.high_;
return Timestamp.fromBits(
low << numBits,
(high << numBits) | (low >>> (32 - numBits)));
} else {
return Timestamp.fromBits(0, low << (numBits - 32));
}
}
};
/**
* Returns this Timestamp with bits shifted to the right by the given amount.
*
* @method
* @param {number} numBits the number of bits by which to shift.
* @return {Timestamp} this shifted to the right by the given amount.
*/
Timestamp.prototype.shiftRight = function(numBits) {
numBits &= 63;
if (numBits == 0) {
return this;
} else {
var high = this.high_;
if (numBits < 32) {
var low = this.low_;
return Timestamp.fromBits(
(low >>> numBits) | (high << (32 - numBits)),
high >> numBits);
} else {
return Timestamp.fromBits(
high >> (numBits - 32),
high >= 0 ? 0 : -1);
}
}
};
/**
* Returns this Timestamp with bits shifted to the right by the given amount, with the new top bits matching the current sign bit.
*
* @method
* @param {number} numBits the number of bits by which to shift.
* @return {Timestamp} this shifted to the right by the given amount, with zeros placed into the new leading bits.
*/
Timestamp.prototype.shiftRightUnsigned = function(numBits) {
numBits &= 63;
if (numBits == 0) {
return this;
} else {
var high = this.high_;
if (numBits < 32) {
var low = this.low_;
return Timestamp.fromBits(
(low >>> numBits) | (high << (32 - numBits)),
high >>> numBits);
} else if (numBits == 32) {
return Timestamp.fromBits(high, 0);
} else {
return Timestamp.fromBits(high >>> (numBits - 32), 0);
}
}
};
/**
* Returns a Timestamp representing the given (32-bit) integer value.
*
* @method
* @param {number} value the 32-bit integer in question.
* @return {Timestamp} the corresponding Timestamp value.
*/
Timestamp.fromInt = function(value) {
if (-128 <= value && value < 128) {
var cachedObj = Timestamp.INT_CACHE_[value];
if (cachedObj) {
return cachedObj;
}
}
var obj = new Timestamp(value | 0, value < 0 ? -1 : 0);
if (-128 <= value && value < 128) {
Timestamp.INT_CACHE_[value] = obj;
}
return obj;
};
/**
* Returns a Timestamp representing the given value, provided that it is a finite number. Otherwise, zero is returned.
*
* @method
* @param {number} value the number in question.
* @return {Timestamp} the corresponding Timestamp value.
*/
Timestamp.fromNumber = function(value) {
if (isNaN(value) || !isFinite(value)) {
return Timestamp.ZERO;
} else if (value <= -Timestamp.TWO_PWR_63_DBL_) {
return Timestamp.MIN_VALUE;
} else if (value + 1 >= Timestamp.TWO_PWR_63_DBL_) {
return Timestamp.MAX_VALUE;
} else if (value < 0) {
return Timestamp.fromNumber(-value).negate();
} else {
return new Timestamp(
(value % Timestamp.TWO_PWR_32_DBL_) | 0,
(value / Timestamp.TWO_PWR_32_DBL_) | 0);
}
};
/**
* Returns a Timestamp representing the 64-bit integer that comes by concatenating the given high and low bits. Each is assumed to use 32 bits.
*
* @method
* @param {number} lowBits the low 32-bits.
* @param {number} highBits the high 32-bits.
* @return {Timestamp} the corresponding Timestamp value.
*/
Timestamp.fromBits = function(lowBits, highBits) {
return new Timestamp(lowBits, highBits);
};
/**
* Returns a Timestamp representation of the given string, written using the given radix.
*
* @method
* @param {string} str the textual representation of the Timestamp.
* @param {number} opt_radix the radix in which the text is written.
* @return {Timestamp} the corresponding Timestamp value.
*/
Timestamp.fromString = function(str, opt_radix) {
if (str.length == 0) {
throw Error('number format error: empty string');
}
var radix = opt_radix || 10;
if (radix < 2 || 36 < radix) {
throw Error('radix out of range: ' + radix);
}
if (str.charAt(0) == '-') {
return Timestamp.fromString(str.substring(1), radix).negate();
} else if (str.indexOf('-') >= 0) {
throw Error('number format error: interior "-" character: ' + str);
}
// Do several (8) digits each time through the loop, so as to
// minimize the calls to the very expensive emulated div.
var radixToPower = Timestamp.fromNumber(Math.pow(radix, 8));
var result = Timestamp.ZERO;
for (var i = 0; i < str.length; i += 8) {
var size = Math.min(8, str.length - i);
var value = parseInt(str.substring(i, i + size), radix);
if (size < 8) {
var power = Timestamp.fromNumber(Math.pow(radix, size));
result = result.multiply(power).add(Timestamp.fromNumber(value));
} else {
result = result.multiply(radixToPower);
result = result.add(Timestamp.fromNumber(value));
}
}
return result;
};
// NOTE: Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the
// from* methods on which they depend.
/**
* A cache of the Timestamp representations of small integer values.
* @type {Object}
* @ignore
*/
Timestamp.INT_CACHE_ = {};
// NOTE: the compiler should inline these constant values below and then remove
// these variables, so there should be no runtime penalty for these.
/**
* Number used repeated below in calculations. This must appear before the
* first call to any from* function below.
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_16_DBL_ = 1 << 16;
/**
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_24_DBL_ = 1 << 24;
/**
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_32_DBL_ = Timestamp.TWO_PWR_16_DBL_ * Timestamp.TWO_PWR_16_DBL_;
/**
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_31_DBL_ = Timestamp.TWO_PWR_32_DBL_ / 2;
/**
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_48_DBL_ = Timestamp.TWO_PWR_32_DBL_ * Timestamp.TWO_PWR_16_DBL_;
/**
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_64_DBL_ = Timestamp.TWO_PWR_32_DBL_ * Timestamp.TWO_PWR_32_DBL_;
/**
* @type {number}
* @ignore
*/
Timestamp.TWO_PWR_63_DBL_ = Timestamp.TWO_PWR_64_DBL_ / 2;
/** @type {Timestamp} */
Timestamp.ZERO = Timestamp.fromInt(0);
/** @type {Timestamp} */
Timestamp.ONE = Timestamp.fromInt(1);
/** @type {Timestamp} */
Timestamp.NEG_ONE = Timestamp.fromInt(-1);
/** @type {Timestamp} */
Timestamp.MAX_VALUE =
Timestamp.fromBits(0xFFFFFFFF | 0, 0x7FFFFFFF | 0);
/** @type {Timestamp} */
Timestamp.MIN_VALUE = Timestamp.fromBits(0, 0x80000000 | 0);
/**
* @type {Timestamp}
* @ignore
*/
Timestamp.TWO_PWR_24_ = Timestamp.fromInt(1 << 24);
/**
* Expose.
*/
module.exports = Timestamp;
module.exports.Timestamp = Timestamp;
\ No newline at end of file
... ...
{
"name": "bson",
"description": "A bson parser for node.js and the browser",
"keywords": [
"mongodb",
"bson",
"parser"
],
"files": [
"lib",
"index.js",
"browser_build",
"bower.json"
],
"version": "1.0.4",
"author": "Christian Amor Kvalheim <christkv@gmail.com>",
"contributors": [],
"repository": "mongodb/js-bson",
"bugs": {
"mail": "node-mongodb-native@googlegroups.com",
"url": "https://github.com/mongodb/js-bson/issues"
},
"devDependencies": {
"benchmark": "1.0.0",
"colors": "1.1.0",
"nodeunit": "0.9.0",
"babel-core": "^6.14.0",
"babel-loader": "^6.2.5",
"babel-polyfill": "^6.13.0",
"babel-preset-es2015": "^6.14.0",
"babel-preset-stage-0": "^6.5.0",
"babel-register": "^6.14.0",
"webpack": "^1.13.2",
"webpack-polyfills-plugin": "0.0.9"
},
"config": {
"native": false
},
"main": "./index",
"directories": {
"lib": "./lib/bson"
},
"engines": {
"node": ">=0.6.19"
},
"scripts": {
"test": "nodeunit ./test/node",
"build": "webpack --config ./webpack.dist.config.js"
},
"browser": "lib/bson/bson.js",
"license": "Apache-2.0",
"_from": "bson@1.0.4",
"_resolved": "http://registry.npm.taobao.org/bson/download/bson-1.0.4.tgz"
}
\ No newline at end of file
... ...
_bson@1.0.4@bson
\ No newline at end of file
... ...
_jwa@1.1.5@jwa
\ No newline at end of file
... ...
... ... @@ -5,8 +5,22 @@ var status = require('../util/resTemplate')
router.prefix('/users')
router.post('/addUser',async (ctx, next) => {
var data = await userContoller.addUser(ctx, next);
status.res(ctx,200,data);
try{
var data = await userContoller.addUser(ctx, next);
status.res(ctx,200,data);
}catch(e){
const err = {code:0,msg:e.message}
status.res(ctx,200,err);
}
})
router.post('/login',async(ctx, next)=>{
try{
var data = await userContoller.login(ctx, next);
status.res(ctx,200,data);
}catch(e){
const err = {code:0,msg:e.message}
status.res(ctx,200,err);
}
})
router.get('/bar', function (ctx, next) {
... ...
var userModel = require('../model/userModel');
var saitMd5 = require('../util/saltMD5')
var status = require('../util/resTemplate');
var saitMd5 = require('../util/saltMD5');
var Sequelize = new require('sequelize');
var tokenUtil = require('../util/tokenUtil');
var co = require('co');
... ... @@ -18,17 +19,38 @@ try{
}
}catch (err){
console.log(err)
return {code:0,msg:err};
throw new Error(err);
}
try{
let newUser = await userModel.create(data)
return newUser;
}catch (err){
return {code:0,msg:err};
}
throw new Error(err);
}
}
userService.prototype.login = async(name,pw) => {
try{
var User = await userModel.find({where:{loginName:name}})
console.dir(User)
if(!User){
return {code:0,msg:'用户不存在'}
}else if(User.password != saitMd5.md5Salt(pw,User.salt)){
return {code:0,msg:'密码不正确'}
}
let token = await tokenUtil.getSession(User);
return token
}catch (err){
console.log(err)
throw new Error(err);
}
// try{
// }catch (err){
// return {code:0,msg:err};
// }
}
module.exports = new userService();
\ No newline at end of file
... ...
module.exports = ["/users/addUser"]
\ No newline at end of file
module.exports = ["/users/addUser","/users/login"]
\ No newline at end of file
... ...
... ... @@ -4,38 +4,30 @@
var jwt = require('jsonwebtoken');
var ObjectId = require('objectid');
function JwtSession(opt) {
this.jwtTokenSecret = (opt && opt.jwtTokenSecret) || 'test';
function JwtSession() {
}
JwtSession = module.exports ;
module.exports = new JwtSession() ;
/**
* 生成token
* @param users
* @param cb
*/
JwtSession.getSession = function (users ,cb) {
cb = typeof cb === 'function' ? cb : function (){
};
JwtSession.prototype.getSession = (users) =>{
var expiresIn = 60 * 60 * 60 * 60 * 60;
var payload = {};
payload.id = users.id;
payload.name = users.name;
payload.code =users.code;
payload.category = users.category;
if(users.type){
payload.type = users.type;
}
payload.name = users.loginName;
payload.code =users.userType;
var options = {
"expiresIn": expiresIn
};
console.log(options);
var token = jwt.sign(payload, '3mang', options);
users.token = token;
users.tokenTime = expiresIn;
console.log(users);
cb && cb(null,users);
return users;
};
... ...