Sonar – Javascript and CSS review

Pre-Requisite:

  • MySql is installed and started.
  • Sonar Qube is installed and started (sonar start)
  • Eclipse
  • JavaScript Source files to be analysed.
  • Sonar ant task jar (sonar-ant-task-2.2.jar).

Create a blank eclipse project and copy thesonar-ant-task-2.2.jar. 

Create an ant build file build-Sonar-JS.xml.

<project name=“Sonar JS” default=“sonar” basedir=“.” xmlns:sonar=“antlib:org.sonar.ant”><property name=“sonar.jdbc.url” value=“jdbc:mysql://localhost:3306/sonar?useUnicode=true&amp;characterEncoding=utf8” />

<property name=“sonar.jdbc.username” value=“sonar” />

<property name=“sonar.jdbc.password” value=“sonar” />

<!– Define the SonarQube project properties –>

<property name=“sonar.projectKey” value=“org.codehaus.sonar:example-css-ant” />

<property name=“sonar.projectName” value=“Sonar JS” />

<property name=“sonar.projectVersion” value=“1.0” />

<property name=“sonar.language” value=“js” />

<property name=“sonar.sourceEncoding” value=“UTF-8” />

<property name=“sonar.sources” value=“/full/path/of/the/js/folder” />

<target name=“sonar”>

    <taskdef uri=“antlib:org.sonar.ant” resource=“org/sonar/ant/antlib.xml”>

        <classpath path=“sonar-ant-task-2.2.jar” />

</taskdef>

    <sonar:sonar />

</target>

</project>

Run the build-Sonar-JS.xml as ant task.

Open Sonar Qube dashboard.

http://localhost:9000/

login with default credentials admin/admin

Click on the Dashboard menu and you see the JS violations.

HTML Reports:

In order to view the reports as HTML file

Login to sonar qube (http://localhost:9000) as admin/admin

Click on settings > Update Center > Available Plugins > Install Issues Report plugin.

Once the plugin is installed, restart sonar.

Login to Dashboard > Settings > General Settings > Under Category (Select Issues Report)

Enable HTML Report to True

Run the build-Sonar-JS.xml as ant task.

now you will see a .sonar folder under the eclipse project directory.

The directory will contain issues-report folder.

Open issues-report.html to view the violation offline.

Thoughtful Story -1

Source: Internet.

A cowboy named Banta Singh was overseeing his herd in a remote pasture in Punjab when suddenly a brand-new Ferrari advanced toward him out of a cloud of dust. The driver, a young man in a Brioni suit, Gucci shoes, Armani sunglasses and YSL tie, leaned out the window and asked the cowboy, “If I tell you exactly how many cows and calves you have in your herd, Will you give me a calf?” Banta looked at the man, obviously a yuppie, then looked at his peacefully grazing herd and calmly answered, “Sure, Why not?” The yuppie parked his car, whipped out his macBook Air computer, connected it to his iphone, and surfed to a NASA page on the Internet, where he called up a GPS satellite to get an exact fix on his location which he then fed to another NASA satellite that scanned the area in an ultra-high-resolution photo. The young man then opened the digital photo in iPhoto and exported it to an image processing facility in Italy . Within seconds, he received an email on his iPhone that the image has been processed and the data stored. He then accessed an MS-SQL database through an ODBC connected Excel spreadsheet with email on his iPhone and, after a few minutes, received a response. Finally, he printed out a full-color, 150-page report on his hi-tech, miniaturized Canon LaserJet printer, turned to the cowboy and said, “You have exactly 1,586 cows and calves.” “That’s right. Well, I guess you can take one of my calves,” said Banta. He watched the young man select one of the animals and looked on with amusement as the young man stuffed it into the trunk of his car. Then Banta said to the young man, “Hey, if I can tell you exactly what your business is, will you give me back my calf?” The young man thought about it for a second and then said, “Okay, why not?” “You’re Pappu”, said Banta. “Wow! That’s correct,” said the yuppie, “but how did you guess that?” “No guessing required.” answered the cowboy. “You showed up here even though nobody called you. You want to get paid for an answer I already knew, to a question I never asked. You used millions of dollars worth of equipment trying to show me how much smarter you are than me, and you don’t know a thing about how working people make a living – or about cows. And, for that matter. This is a herd of sheep………. Now give me back my dog.”

Self Signed SSL Certificate using openssl

This post is heavily inspired by the following post
http://www.akadia.com/services/ssh_test_certificate.html

The setup is to enable a SSL in apache.

My Setup:
Mac OS: Mavericks
Webserver: Apache with modssl.
Apache location:/etc/apache2
Log Files: /var/log/apache2/

To enable SSL in apache, the following files needs to be changed.

/etc/apache2/extra/httpd-ssl.conf
/etc/apache2/httpd.conf

create a folder ssl
/etc/apache2/ssl
At the end of the exercise the below 2 files should be available in the above folder.

  • server.crt
  • server.key

Step 1: Generate a Private Key

The openssl toolkit is used to generate an RSA Private Key and CSR (Certificate Signing Request).
It can also be used to generate self-signed certificates which can be used for
testing purposes or internal usage.

The first step is to create your RSA Private Key.
This key is a 1024 bit RSA key which is encrypted using Triple-DES and stored in a
PEM format so that it is readable as ASCII text.

openssl genrsa -des3 -out server.key 1024
Generating RSA private key, 1024 bit long modulus
.......................++++++
....++++++
e is 65537 (0x10001)
Enter pass phrase for server.key:
Verifying - Enter pass phrase for server.key:

Step 2: Generate a CSR (Certificate Signing Request)
Once the private key is generated a Certificate Signing Request can be generated.
The CSR is then used in one of two ways. Ideally, the CSR will be sent to a
Certificate Authority, such as Thawte or Verisign who will verify the identity of the
requestor and issue a signed certificate. The second option is to self-sign the CSR,
which will be demonstrated in the next section.

During the generation of the CSR, you will be prompted for several pieces of information.
These are the X.509 attributes of the certificate. One of the prompts will be for
“Common Name (e.g., YOUR name)”. It is important that this field be filled in with
the fully qualified domain name of the server to be protected by SSL.

sudo openssl req -new -key server.key -out server.csr

Enter pass phrase for server.key:
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter ‘.’, the field will be left blank.
—–
Country Name (2 letter code) [AU]:IN
State or Province Name (full name) [Some-State]:TN
Locality Name (eg, city) []:CHENNAI
Organization Name (eg, company) [Internet Widgits Pty Ltd]:MyCompany
Organizational Unit Name (eg, section) []:MyUnit
Common Name (e.g. server FQDN or YOUR name) []:venkat.local
Email Address []:youremail@email.com

Please enter the following ‘extra’ attributes
to be sent with your certificate request
A challenge password []:password
An optional company name []:password

Step 3: Remove Passphrase from Key
One unfortunate side-effect of the pass-phrased private key is that Apache will ask for
the pass-phrase each time the web server is started. Obviously this is not necessarily
convenient as someone will not always be around to type in the pass-phrase, such as after
a reboot or crash. mod_ssl includes the ability to use an external program in place of
the built-in pass-phrase dialog, however, this is not necessarily the most secure option
either. It is possible to remove the Triple-DES encryption from the key, thereby no
longer needing to type in a pass-phrase. If the private key is no longer encrypted,
it is critical that this file only be readable by the root user! If your system is ever
compromised and a third party obtains your unencrypted private key, the corresponding
certificate will need to be revoked. With that being said, use the following command
to remove the pass-phrase from the key:

sudo cp server.key server.key.org
sudo openssl rsa -in server.key.org -out server.key
Enter pass phrase for server.key.org:
writing RSA key

Step 4: Generating a Self-Signed Certificate

At this point you will need to generate a self-signed certificate because you either don’t
plan on having your certificate signed by a CA, or you wish to test your new SSL
implementation while the CA is signing your certificate. This temporary certificate
will generate an error in the client browser to the effect that the signing certificate
authority is unknown and not trusted.

To generate a temporary certificate which is good for 365 days, issue the following
command:

sudo openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt
Signature ok
subject=/C=IN/ST=TN/L=CHENNAI/O=MyCompany/OU=MyUnit/CN=venkat.local/emailAddress=myemail@email.com
Getting Private key

Step 5 Update the httpd-ssl.conf with the private key & certificate details.

# Server Certificate:
SSLCertificateFile "/etc/apache2/ssl/server.crt"
# Server Private Key:
SSLCertificateKeyFile "/etc/apache2/ssl/server.key"

Javascript coding standards

If you are looking for coding standards in Javascript for doing code review or for your self-improvement. Then, you are in the right place.

Following are some of the gem website which provides information on the Standards and best practices for Javascript. Strictly following this will help you learn good javascript and be a good coder.

These are my collections and may not be exhaustive, i will update it as and when i can.

http://javascript.crockford.com/code.html

http://google-styleguide.googlecode.com/svn/trunk/javascriptguide.xml

https://code.google.com/p/gmaps-utility-library-dev/wiki/JavascriptCodingConventions

https://github.com/dsheiko/jscodesniffer

http://jibbering.com/faq/notes/code-guidelines/

http://dojotoolkit.org/community/styleGuide

http://jstherightway.org/

https://github.com/stevekwan/best-practices/blob/master/javascript/best-practices.md

http://jslinterrors.com

 

Books for developers

If you are looking for some good resources to master your development skills, the following link has a exhaustive list of book recommendation, specifically on Programming, Design and Architecture.

http://www.codeproject.com/Reference/617/Useful-Reference-Books

This is the list prepared by Chris Maunder, who has co-founded CodeProject.com.

CodeProject.com is one of the best resource for technical information, specific to programming language, design and architecture. They cover brief as well as in-depth information on best known technologies. I had subscribed to their new letter which is one the best source for my daily tech needs.

 

What’s new in Android L

In Google I/O Key note, Pichai introduced the latest Android OS code named “L”. L stands for Lollipop, just a guess, but we will come to know about it. Here are the some of the key features:

1. Material Design:

Google is moving to this latest design approach. This will help developers come up with a new style for the apps. The new design will have changes to the look and feel of the app (Shadow, Color palette, animations,…). This will give more flexibility for the developers in designing their app.

2. ART

They have dumped Dalvik engine and moved to something they call ART (Android Runtime).

USP’s are Better garbage collections, new improved developer tools.

3. Safari

Search for contents in web as well in Apps. This surely is going to be something to watch for! Android is orienting itself to “All Web” mantra and may move out of native apps.

Couple of  other features like wearables, TV, Auto & Health was also introduced.

With un-organized OEM providers, i’m not sure how many will have this new OS upgrade? Again, this will be for high end smartphones like Nexus, Samsung S5, Note II..

What about other phones??

 

Selfy – a new lingo

Taking pictures of one self is cool and something that most of the people do. The advent of facebook, Twitter and Instagram, every one wanted to show their self image in the social platform. This is not new, but the termed that is coined for this is new. It is called “Selfy” “Selfie”. Selfy is taking their own picture and sharing it in social platform. To take a selfie all you need is a camera, which i guess every one has one these days.

Let the Selfie bring in some likes to your profile!!

 

Google Shopping Festival 2013

Google has website for it shopping festival for indian users and is online from 11th Dec 2013 – 14 Dec 2013. The site can be accessed from here.

The have joined partners with lot of major online shopping website like Jabong, SnapDeal etc. They also give you  additional discount (upto 40%) and also have cashback for specific cards and specific amount.

The biggest deals are on Sunglasses and watches. Its fin time for shopaholic!!

 

Bitcoin- The Digital Money for BlackFriday Deals

Bitcoin is becoming a new trend these days as an alternative for Payment modes like Creditcard, DebitCard, Paypal and e-Wallet. It has been so popular that now the customers can / are redeeming it for the BlackFriday deals in US. There is lot of scope for this type of payment transaction to become the next happening thing.

If you want to understand how Bitcoin works checkout this site. it has extensive details on Bitcoin and its usage.

http://bitcoin.org/en/how-it-works

https://rbitco.in/articles/faq