node js security scanner

)For Examle:Const BUF = buffer.from (' Hello World ', ' ASCII ');//Output 68656c6c6f20776f726c64console.log (buf.tostring (' hex '));//Output Agvsbg8gd29ybgq=console.log (buf.tostring (' base64 '));The character encodings currently supported by node. JS include: ' ASCII ' -only supports data. This encoding is very fast if the setting is removed from the high. ' UTF8 ' -multibyte-enco

items Expires: Expiration time (in seconds) after which the Cookie is invalidated at a certain point in time, such as Expires=wednesday, 09-nov-99 23:12:40 GMT MaxAge: Maximum failure Time (MS), setting after how many failures Secure: When the secure value is true, the cookie is invalid in HTTP and is valid in HTTPS Path: Represents the path that the cookie affects, such as path=/. If the path does not match, the browser does not send this cookie HttpOnly: It's Microsoft's e

1.Node is a working environment for JavaScript based on the Chrome V8 engine. node. JS uses an event-driven, non-blocking I/O model to make it lightweight and efficient. Browsers are also the operating environment for JavaScript.2. There is a security restriction in the browser environment and it is not allowed to invo

than the HTTP protocol. OpenSSL generates a certificate fileAs long as the Git client is installed, there will be OpenSSLDetect if OpenSSL is installedOpenSSL version-aNext, start generating the certificate:#1#2, generate CSR certificate signature via private key -new-key Privatekey.pem- Out certrequest.csr#3-req- in Certrequest.csr-signkey privatekey.pem-out Certificate.pemAfter executing the third command you will see: Signature ok表示生成成功，最终看到如下三个文件 PRIVATEKEY.PEM: Private key

Use require ('crypto') to call the encryption module. The encryption module requires the underlying system to support OpenSSL. It provides a security credential encapsulation method that can be used for HTTPS security networks and common HTTP connections. This module also provides a set of hash, hmac, cipher, decipher, sign, and verify for OpenSSL) and other methods. Crypto. createCredentials (details) Crea

Solve the Problem of connect ECONNREFUSED 127.0.0.1: 3306 in Node. js using MySQL, connecteconnrefused Preface Recently, I used Node to write a gadget that requires MySQL databases. Currently, the most widely used mysql database is used. Then, now the ORM is so popular, so I can't learn it, so I found the ORM library sequencee.

This is a summary of the Directory, which records the basic knowledge of Node. js. this article and the subsequent articles will be an advanced series. let's build a learning process from a simple perspective, I hope you can continue reading my articles in this series. this is also the greatest encouragement and support for me. let's make common progress and help each other. Now, go to today's topic, What

Host: Hosts address (default: localhost)User: UsernamePassword: passwordPort: Port number (default: 3306)Database: DB nameCharSet: Connection Character Set (default: ' Utf8_general_ci ', note character set letters are capitalized)LocalAddress: This IP is used for TCP connections (optional)Socketpath: Connecting to a UNIX domain path that is ignored when host and Port are usedTimeZone: Time zone (default: ' Local ')ConnectTimeout: Connection Timeout (default: No Limit; units: milliseconds)Stringi

Introduction to encrypted transmission of Node. js data For encrypted data transmission, there are several methods that people often use. One is ciphertext transmission, and the other is ciphertext transmission. The other is to encrypt data using keys and decrypt data using public keys, the transmission channel can be https or http. The premise of plaintext transmission is to establish a secure transmissio

This article describes how to solve the inconsistency between AES encryption and other languages in Node. js. For example, if you need to communicate with C # and JAVA, refer Example 1: These days have been plagued by a problem. The AES encryption of Nodejs is inconsistent with that encrypted by Java and C. Of course, you cannot decrypt it. Tangle for a long time: Later, it was not enough. I read the sourc

database connection pool can limit the maximum number of connections, reuse existing connections, and so on.First, we need to create a connection pool:var mysql = require (' MySQL '); var pool = Mysql.createpool ({host: "HostName", User: "username", Password: "Password" });Second, we can get a connection we need from the connection pool we created:Pool.getconnection (function (err, connection) {});Use the parameter connection of the callback function to query the database.

'}); var currenttime = new Date (); Sys.puts (' Starting sending time '); SetInterval (function () { Res.write ( Currenttime.gethours () + ': ' + Currenttime.getminutes () + ': ' + Currenttime.getseconds () + "\ n" ); SetTimeout (function () { Res.end (); }, 10000); },1000); }). Listen (8090, ' 192.168.175.128 '); However, there are many drawbacks to this approach, first of all the RES objects packaged in the Express framework do not support this way of use,

Node. js sends streaming data to the clientIf the data on a requested page is large or a data stream that takes some time to complete, it is better to send the completed data to the client in the form of a stream. In express, the general practice is to send data after the data is completed. For example, when the system command is executed using exec, the callback function is called to process the command ou

needs to make corresponding feedback, then the client only needs to subscribe to thisChannel,The server will then push the results to both the Web version and the client, and when the message is received, it can beGoeasycallback function to do what you want to do. About theGoeasyThe use of push, we can refer to this blog:http://www.cnblogs.com/jishaochengduo/articles/5552645.html,alsoGoeasyThere is also a push on the official websiteDemo:GoeasyTwo-dimensional codeScan Code LoginDemo,we can see

Here we introduce the method of installing Node.js and Ghost in Ubuntu 14.04 LTS. I. Installation of Node.js To maintain the latest version, we use the PPA form, which allows you to import the PPA directly with this script: sudo curl-sl https://deb.nodesource.com/setup | sudo bash- After the import is complete, install node.js directly sudo apt-get install Nodejs This Node.js package already contains NPM so you don't have to install NPM separately, and some node.js programs have to install

can be directed to feed the confirmation result back to the page. Using the QR Code login function requires two prerequisites: one is to install the app on the client. Second, users need to login to the app. https://wx.qq.com/node. JS WebSocket Message pushWhy do we have these two conditions? That is because when you confirm that you are allowed to log in to the Web version, you need to extract the current

When Ajax uses jquery to request data from a server or send data to the server, it often encounters cross-domain errors that cannot be requested, and the common solution is to use JSONP in Ajax. Based on security considerations, the browser will have the same origin policy, but the Implementing JSONP in node. JS is very simple, with the following code we return f

; En-us; rv:1.8.0.12) gecko/20070731 ubuntu/dapper-security firefox/1.5.0.12', 'mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; trident/5.0; SLCC2;. NET CLR 2.0.50727;. NET CLR 3.5.30729;. NET CLR 3.0.30729; Media Center PC 6.0;. net4.0c;. net4.0e; Lbbrowser)', 'mozilla/5.0 (X11; U Linux i686; En-us; rv:1.9.0.8) Gecko fedora/1.9.0.8-1.fc10 kazehakase/0.5.6', 'mozilla/5.0 (X11; U Linux; En-US) applewebkit/527+ (khtml, like Gecko, safari/41

= Client.multi (), Multicmd.get ("string Key"), Multicmd.exec (function (Err, Reply) {Console.log (reply.tostring ());}); /Set Expiration Time Client.expire (' string key ', 3);//valid time validation var MyTimer = setinterval (function () {client.get (' string key ', function ( Err, Reply) {if (reply) {Console.log (' I live: ' + reply.tostring ());} else {cleartimeout (MyTimer); Console.log (' I expired ') ); Client.quit ()});}, 1000);//Check how long a value is persisted before it expires var