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ColdFusion CF is a rapid application development language that allow us to build a dynamic web site and web application easily. ColdFusion application server is build on top of Java so it’s can work in multiple OS platform such as Window or Linux as well as difference web server such as IIS web server or Apache web server.

The major difference between Web Server and Web Application Server is that Web server only have the limited capability. It wait for the request from the user and serve the request as soon as possible.

Web application server actually is to extends the capabilities of a web server. With the extended functionality, the web server now able to do more work and fuction such as interacts with database, other resources, interacts with other web service, or other application.

 
How ColdFusion works:

• Below steps explain how web server and application server work together.
• User requests a page by typing a URL in the browser, and web server receives the request.
• Web server looks at the file extension to determine whether a web application server must process the page.
• If user requests a page that is simple web page like HTM or HTML extension, the web server fulfills the request and sends it back to browser.
• If user requests a page that application server must process like CFM, CFML or CFC extensions, the web server passes the request to the application server.
• The web application server processes the page and sends the result to the web server, which returns those results to browser.

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Just a quick reference on how to loop over a structure without knowing its keys. By the loop, you may also convert the structure

.

<cfset aaaa.ab1 = '111'>
<cfset aaaa.ab2 = '222'>
<cfset aaaa.ab3 = '333'>
<cfset aaaa.ab4 = '444'>

<cfset logcontent = "">
<cfloop list="#structKeyList(aaaa)#" index="key">
<cfoutput>
<cfset logcontent = logcontent & "(" & #key# & ": " & #aaaa[key]# & ")">
</cfoutput>
</cfloop>

<cfdump var="#aaaa#">

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This list is intended for developers new to ColdFusion, or to developers already using CF but looking for additional resources or information.

Adobe ColdFusion Resources

• ColdFusion product page
• Download ColdFusion
• Getting Started Guide and Examples
• ColdFusion Developer Center

ColdFusion Documentation

• ColdFusion 8 Documentation
• ColdFusion 7 Documentation
• CF QuickDocs (quickly search for any tag or function)

Essential Resources

• CFLib.org Open Source Function Libraries
• Open Source Projects
• ColdFusion Blog Aggregator

ColdFusion IDEs

• CFEclipse
• Adobe Dreamweaver
• Upcoming ColdFusion IDE from Adobe, code named “Bolt”

Open Source CFML Engines

• JBoss Railo
• BlueDragon

MVC Frameworks

• Fusebox
• Mach-II
• Model-Glue
• ColdBox

ORM and Dependency Injection Frameworks

• Transfer ORM
• Reactor ORM
• ColdSpring (Spring-inspired IoC/DI container)

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This TEDTalk was given by Thomas Suarez at TEDxManhattanBeach. Thomas is in the 6th grade at a middle school in the South Bay, and he’s made several apps for the App Store and established his own company,CarrotCorp.

Besides his fantastic presentation skills, Thomas is an amazing testament to how the younger generation is shaping the world of technology. What a smart kid. Steve Jobs would be very proud.

And we’re downloading his app, Bustin Jieber, as we speak. It looks fun.

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This is a very good tips from Pete Freitag on how to hardening your ColdFusion server. This E-Book include some important topic such as:

• Installation Tips
• ColdFusion Administrator Settings
• Sandbox Security
• Hiding Version Information
• Overview of Web App Firewalls

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When working on Coldfusion in the Adobe Dreamweaver 5 and it keep crash. Whenever I restart the applications and start my work again, it will crash again after sometime (about few minutes later on)

Asking around my colleague and get the following working solution by removing the WinFileCache-B2AEB9E2.dat file.

On Window XP

the file is located at C:\Documents and Settings\<username>\Application Data\Adobe\Dreamweaver 9\Configuration

On window 7

the file is located at C:\Users\<username>\AppData\Roaming\Adobe\Dreamweaver CS5\en_US\Configuration

* Dreamweaver will recreate the file again if it found the file missing when you relaunch the application again.

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Just come across with my company SQA team where they request us to do the disable right click features on our front end web site. The initial javascript which exists in our script only work with Microsoft Internet Explorer but not Firefox.

So Google around and found the following javascript which working for both the browser (Firefox and Internet Explorer are the major browser use by our visitor)

Just include this script in our top of the page which you wish to disable the right click function.

<script type="text/javascript">

function md(e)
{
  try { if (event.button==2||event.button==3) return false; }
  catch (e) { if (e.which == 3) return false; }
}
document.oncontextmenu = function() { return false; }
document.ondragstart   = function() { return false; }
document.onmousedown   = md;

</script>

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Today, I found out that the default setting for the Visult studio 2008 is not enable the line number, in order for easy debuging purpose, I have to turn it on.

To turn on the line number for Visual studio 2008 you need to do 2 things:

To turn on the status bar
tools –> Options –> Environment –> General –> Show Status Bar

To turn on the line number for all language
tools –> Options –> Text Editor –> All Language –> Tick the Line Number check box

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This is a pretty good function for CF8 administrator where you can pause your schedule task whenever you like to. Not like the previous version of Coldfusion where the administrator only can only edit or delete the scheduled task.

With this function exists, you can pause it wihtout editing anything like what you did last time by changing the url to something else or change to date to expire the scheduled task.

Currently on running schedule task display

Currently pause scheduled task display

CFMX 6.1 scheduled task display without the pause and resume button

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Last whole week working with a project which involve the integration with 3th party API through the HTTPS secure channel using coldfusion CFHTTP. I come across with the following error message:

I/O Exception: peer not authenticated

Try to Google it for some time and find out that I need to import the 3th party certificate into my Coldfusion server by using some keytool certificate import tools. Trying few times but still can’t get it work until I found a blog which showing a very effective way and free tools for import the certificate.

These instructions are for Windows based machines but the concepts and tools should work on Mac or Unix based platforms.

1. Install tools

Download and install Portecle JVM certificate manager

(portecle-1.5.zip) You do not need the source (src) version

https://sourceforge.net/projects/portecle

The easiest way to install Portecle is to unzip the contents of the zip file to a directory such as C:\Program Files\portecle-1.5\ Then find the file “Portecle.jar”, right click it and send it to your desktop as a shortcut. You can then use this shortcut to launch Portecle. (optionally you can also change the name of the shortcut and change the icon to use the portecle.ico file for the icon)

2. Extract the certificate

The easy way to get the certificate is ask from the issuer, but if you unable to do so, you may have another alternative solution which you open the https page in your browser and double click on the lock logo at bottom left of the browser (the lock appear just beside the url addrss for Google Chrome)

Double click on the lock –> click the certificate information button –> go to details –> click the copy to file button –> Follow the wizard and select the base-64 encoded X.509 (.cer) format –> save the file

3. Install Certificate to Java Virtual Machine and/or ColdFusion server

Start Portecele.

On the [File] menu, select [Open Keystore File] navigate to and locate the keystore you are interested in.

For many java installations this will be located in your “jre\lib\security” directory and might be named “cacerts”

For the ColdFusion 8 default developer install the path will be “c:\coldfusion8\runtime\jre\lib\security\cacerts”

You will have to enter the password for the keystore. The default password is “changeit”

Now you are ready to import the key.

From the [Tools] menu select [Import Trusted Certificate]

Navigate to and locate the certificate you saved and click [Import]

You will need to reenter the keystore password.

You can change the alias if you desire but I would recommend leaving it as the default

Note: You may also be prompted to “trust” the certificate.

Click on the save button at the top of the portecle

4.       Restart you Java Virtual Machine/coldfusion application server.

For ColdFusion not installed on top of JRun you just need to restart the ColdFusion service. If you are running on top of JRun you also need to restart JRun.

Up to now, you already successfully import your partner certificate to your coldfusion/java server.

Please feel free to leave your suggestion if any. Click here for more information regarding Protecle

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