MP3 STREAMING SERVER
Here is an application that uses coldfusion server to stream MP3 using an M3U file. An M3U file is basically just a playlist. In principle, if you send a *.m3u file to a media player, it should play the data in the m3u file. M3u file contains data like, location of the MP3.
Step 1!
Locate all your MP3 files and put them in a folder. In my case it was d:\MP3
Step 2 !
Open you web server (in my case it was IIS). Add the MP3 folder as a virtual directory to the web server. This will ensure that the streaming server will use HTTP port 80 for playing the MP3 on client side.
Step 3
Create the following file list and follow directions given below !!!
- Application.cfm
- Default.cfm
- Login.cfm
- LoginProcess.cfm
- Index.cfm
- DirListing.cfm
- CreateM3U.cfm
- Logout.cfm
APPLICATION.CFM
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN">
<html>
<head>
<title>Streaming Media Server</title>
</head>
<link rel="stylesheet"
title="Style"
href="Style/StreamStyle.css">
<body>
<cfapplication
name="Mp3Stream"
clientmanagement="Yes"
sessionmanagement="Yes"
sessiontimeout="#CreateTimeSpan(0,0,20,0)#"
applicationtimeout="#CreateTimeSpan(0,1,0,0)#">
<cflock timeout="15"
throwontimeout="No"
name="AppLock"
type="exclusive">
<cfset AppIsInit = IsDefined('Application.Initialized')>
</cflock>
<cfif AppIsInit eq "No">
<cflock timeout="15"
throwontimeout="No"
name="AppLock"
type="exclusive">
<cfset AppIsInit =
"Yes">
<cfset Application.IsInitialized =
"Yes">
<!---------------------------------------------------------------------
NOTE: MP3 folder should be a Virtual directory in IIS
---------------------------------------------------------------------->
<cfset Application.DSN =
"MusicDB">
<cfset Application.Dir =
"E:/MP3">
<cfset
Application.PlayList="http://yourdomain/MP3">
</cflock>
</cfif>
<!---------------------------------------------------------------------
check if session is initialized
---------------------------------------------------------------------->
<cflock timeout="15"
throwontimeout="No"
name="SessionLock"
type="EXCLUSIVE">
<cfparam name="SessionIsInit"
default="#IsDefined('Session.IsInitialized')#">
</cflock>
<!---------------------------------------------------------------------
if session is not initialized, then redirect
---------------------------------------------------------------------->
<cfif SessionIsInit eq 'NO'>
<cflock timeout="15"
throwontimeout="No"
name="SessionLock"
type="EXCLUSIVE">
<cfif CGI.Script_Name neq
"/CFStream/Default.cfm" and
CGI.Script_Name neq "/CFStream/LoginProcess.cfm" and
CGI.Script_Name neq "/CFStream/Logout.cfm">
<cflocation url="/CFStream/Default.cfm" addtoken="no">
</cfif>
</cflock>
<!---------------------------------------------------------------------
is sesion is initialized, then show user menu
---------------------------------------------------------------------->
<cfelse>
<table width="100%">
<tr>
<td width="50%"
align="left">
<a href="Index.cfm">LISTINGS</a>
</td>
<td align="right">
<a href="Logout.cfm">LOGOUT</a>
</td>
</tr>
</table>
<hr>
</cfif>
<!---------------------------------------------------------------------
if user navigates to logout, clear all structures
---------------------------------------------------------------------->
<cfif CGI.Script_Name eq
"/CFStream/Logout.cfm">
<cfset SessionIsInit = "No">
</cfif>
</body>
</html>
DEFAULT.CFM
<!---------------------------------------------------------------------
*This is basically a login form !
*Declare error codes
---------------------------------------------------------------------->
<cfparam name="ErrorCode"
default="0">
<cfswitch expression="#ErrorCode#">
<cfcase value="0"><cfset Title =
"LOGIN TO STREAMING MEDIA SERVER"></cfcase>
<cfcase value="1"><cfset Title =
"ERROR WHILE LOGING IN. PLEASE TRY AGAIN"></cfcase>
</cfswitch>
<!--------------------------------------------------------------------------
Login Form
--------------------------------------------------------------------------->
<h3 align="center"><cfoutput>#Title#</cfoutput></h3>
<table align="center"
bgcolor="#efefdd">
<cfform action="LoginProcess.cfm">
<tr>
<th>Username:</th>
<td>
<cfinput
name="Username"
type="text"
required="yes"
message="Cannot proceed without a valid login
ID">
</td>
</tr>
<tr>
<th>Password:</th>
<td>
<cfinput
name="Password"
type="password"
required="yes"
message="Cannot proceed without a valid
password">
</td>
</tr>
<tr>
<td colspan="2"
align="right">
<input type="submit"
name="Submit"
value="Login">
<input
type="reset"
name="Reset"
value="Reset">
</td>
</tr>
</cfform>
</table>
LOGINPROCESS.CFM
<cfset CompareUser = Compare(Form.Username, 'Username')>
<cfset ComparePass = Compare(Form.Password, 'Password')>
<cfif CompareUser eq 0 and ComparePass
eq 0>
<cfset Session.IsInitialized = "True">
<cfset SessionIsInit = "Yes">
<cflocation url="Index.cfm"
addtoken="no">
<cfelse>
<cflocation url="Login.cfm?ErrorCode=1"
addtoken="no">
</cfif>
INDEX.CFM
<cfdirectory action="LIST"
directory="#Application.Dir#"
name="MP3Dir">
<cfset DirList = ValueList(MP3Dir.Name)>
<cfset LoopCount = 0>
<table align="center"
width="100%">
<tr>
<cfloop index="SubDirs"
list="#DirList#">
<cfset LoopCount = LoopCount+1>
<td align="right"><cfoutput>#LoopCount#</cfoutput></td>
<td bgcolor="<cfoutput>#iif(LoopCount mod
2, DE('efeddd'), DE('White'))#</cfoutput>">
<a href="DirListing.cfm?Dir=<cfoutput>#URLEncodedFormat('#SubDirs#')#</cfoutput>">
<cfoutput>#SubDirs#</cfoutput>
</a>
</td>
<cfif LoopCount Mod 3 eq
0>
</tr>
</cfif>
</cfloop>
</table>
DIRLISTING.CFM
<cfdirectory action="LIST"
directory="#Application.Dir#\#URL.Dir#"
name="SongList"
filter="*.mp3">
<cfform action="CreateM3U.cfm">
<h3 align="center"><cfoutput>#URL.Dir#</cfoutput></h3>
<table width="60%"
align="center">
<tr bgcolor="#ECD9BB">
<th></th>
<th>Title</th>
<th>Size</th>
</tr>
<cfoutput query="SongList">
<tr bgcolor="#iif(currentrow mod 2,
DE('efefdd'), DE('White'))#">
<td><cfinput
type="Checkbox"
name="SongSelect"
value="#URL.Dir#/#Name#"></td>
<td>#Name#</td>
<td>
<cfset SizeInKB = NumberFormat(size/1000000,
'__.__')>
#SizeInKB# Mb
</td>
</tr>
</cfoutput>
<tr>
<td colspan="3"><hr></td>
</tr>
<tr bgcolor="#ECD9BB">
<td colspan="3"
align="right">
<input type="submit" name="Play"
value="Play Song List">
</td>
</tr>
</table>
</cfform>
CREATEM3U.CFM
<cfset SelectedList="#Form.SongSelect#">
<cfloop index="PlayListLoop"
list="#SelectedList#">
<cffile action="APPEND"
file="#Application.Dir#/PlayList.m3u"
output="#Application.PlayList#/#PlayListLoop#"
addnewline="Yes">
</cfloop>
<cfheader NAME="Content-disposition"
VALUE="inline;filename=PlayList.m3u">
<cfcontent type="text/plain"
file="#Application.Dir#/PlayList.m3u"
deletefile="Yes">
LOGOUT.CFM
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN">
<meta http-equiv="refresh"
content="2;url=default.cfm">
<html>
<head>
</head>
<body>
<h3
align="center"
style="position:absolute; top:50%;
left:35%;">Logged out successfully !!!</h3>
<cfset StructClear(Session)>
<cfset StructClear(Application)>
</body>
</html>
THERE YOU ARE DONE !!!
You can also use some sort of a mechanism to control the number of simultaneous users.
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