CFLib.org – Common Function Library Project

easySocket(host, port, message)

Last updated August 27, 2009

author

George Georgiou

Version: 1 | Requires: CF6 | Library: NetLib

Description:
This function allows ColdFusion developers to connect to remote hosts through the TCP/IP protocol and transmit messages. Very useful for implementing chat rooms, integrate with third party applications such as merchant carts etc.

Return Values:
Returns a string.

Example:

#easySocket('127.0.0.1','9999','Hello from ColdFusion')#

Parameters:

Name Description Required
host Host to connect to. Yes
port Port for connection. Yes
message Message to be sent. Yes

Full UDF Source:

<!---
 Connect to sockets through your ColdFusion application.
 Mods by Raymond Camden
 
 @param host 	 Host to connect to. (Required)
 @param port 	 Port for connection. (Required)
 @param message 	 Message to be sent. (Required)
 @return Returns a string. 
 @author George Georgiou (george1977@gmail.com) 
 @version 1, August 27, 2009 
--->
<cffunction name="easySocket" access="private" returntype="any" hint="Uses Java Sockets to connect to a remote socket over TCP/IP" output="false">

    <cfargument name="host" type="string" required="yes" default="localhost" hint="Host to connect to and send the message">
    <cfargument name="port" type="numeric" required="Yes" default="8080" hint="Port to connect to and send the message">
    <cfargument name="message" type="string" required="yes" default="" hint="The message to transmit">

   <cfset var result = "">
   <cfset var socket = createObject( "java", "java.net.Socket" )>
   <cfset var streamOut = "">
	<cfset var output = "">
	<cfset var input = "">

   <cftry>
      <cfset socket.init(arguments.host,arguments.port)>
      <cfcatch type="Object">
         <cfset result = "Could not connected to host <strong>#arguments.host#</strong>, port <strong>#arguments.port#</strong>.">
         <cfreturn result>
      </cfcatch>  
   </cftry>

   <cfif socket.isConnected()>
       <cfset streamOut = socket.getOutputStream()>
       
       <cfset output = createObject("java", "java.io.PrintWriter").init(streamOut)>
       <cfset streamInput = socket.getInputStream()>
       
       <cfset inputStreamReader= createObject( "java", "java.io.InputStreamReader").init(streamInput)>
       <cfset input = createObject( "java", "java.io.BufferedReader").init(InputStreamReader)>
        
       <cfset output.println(arguments.message)>
       <cfset output.println()> 
       <cfset output.flush()>
       
       <cfset result=input.readLine()>
       <cfset socket.close()>
   <cfelse>
      <cfset result = "Could not connected to host <strong>#arguments.host#</strong>, port <strong>#arguments.port#</strong>.">
   </cfif>
   
   <cfreturn result>
</cffunction>
blog comments powered by Disqus

Search CFLib.org


Latest Additions

Kevin Cotton added
date2ExcelDate
May 5, 2016

Raymond Camden added
CapFirst
April 25, 2016

Chris Wigginton added
loremIpsum
January 18, 2016

Gary Stanton added
calculateArrival...
November 19, 2015

Sebastiaan Naafs - van Dijk added
getDaysInQuarter
November 13, 2015

Created by Raymond Camden / Design by Justin Johnson