Archive for the ‘Programming’ Category

DIY Omegle Chat Bot!

September 16, 2009 15 comments

I have been chatting on  Omegle for quite some time now and I must say that i find it rather addictive. During one conversation, i encountered a bot and needless to say, i was hooked on to the convo ! I wanted to make one for myself badly somehow 🙂

A quick search later revealed that most of the chatter bots were based on the Artificial Intelligence Markup Language.It’s basically a rule based xml language which is used by the AI engine to give a response (a.k.a. categories) based on a set of  pre-loaded rules (a.k.a. topics).Such a topic-category definition is written in to a AIML file which the engine loads.  And guess what, there was a python implementation of  the AIML engine 😛 .This blog shows how to implement a standalone bot using PyAIML. I used the Annotated A.L.I.C.E. AIML files (AAA) for the engine’s rule base.

Now all i had to do was to find out how to connect to Omegle through code.Once that was done, i could capture what the stranger typed, pass it on to the engine and transmit back the response to the Omegle server .There is no ‘official’ documentation on the various connection string options but a good samaritan had written a python client for Omegle. I used that code (liberally!) to get connected.

Here’s the final listing:

#This omegle bot is based on the PyAIML and liberally uses code from PyOmegle
# PyOmegle:

import aiml
import urllib2 as url
import urllib
import os
import time
import commands

k = aiml.Kernel()

if os.path.isfile("omeglebrain.brn"):
    k.bootstrap(brainFile = "omeglebrain.brn")
    #Change to the directory where the AIML files are located
    for item in list:
    #Change back to homedir to save the brain for subsequent loads

# #conversation ID
def fmtId( string ):

    return string[1:len( string ) - 1]

# #The event listener
def listenServer( id, req ):

    while True:

        site = url.urlopen(req)
        rec =

        if 'waiting' in rec:

        elif 'strangerDisconnected' in rec:
            print('Stranger Disconnected!')

        elif 'connected' in rec:
            print('Found one')

        elif 'typing' in rec:
            print("Stranger is typing...")

        elif 'gotMessage' in rec:
            input=rec[16:len( rec ) - 2]
	    print "Stranger:",input

# #Send the bot's response to Omegle
def talk(id,req,msg):

    typing = url.urlopen('', '&id='+id)
    time.sleep((len(msg))/5) #5 characters per second
    print "You:",msg
    msgReq = url.urlopen('', '&msg='+msg+'&id='+id)

# #Initiate connecton
def omegleConnect():

    site = url.urlopen('','')
    id = fmtId( )
    req = url.Request('', urllib.urlencode( {'id':id}))
    print('Finding stranger...')


For this code to work, you need to download the AAA folder(files) into the directory where this python script is located.

We are good to go now! You can play around with the AIML files and even make your own  file for chat specific questions like “asl” ,”from”  etc. Here’s an interesting(?)  chat that my bot had:

:~/Bot> python
Loading brain from omeglebrain.brn... done (46285 categories in 1.71 seconds)
Kernel bootstrap completed in 1.71 seconds
Finding stranger...
Stranger is typing...
Stranger: "hi"
You: Hello there.
Stranger is typing...
Stranger: "sooo"
You: Is that your final answer?
Stranger is typing...
Stranger is typing...
Stranger: "yes"
You: You're sure. That's your final answer.
Stranger is typing...
Stranger: "YES\n"
You: Oh, you are a poet.
Stranger is typing...
Stranger: "no"
You: But your words are very original.
Stranger is typing...
Stranger: "they seem simple to me"
You: Like who, specifically?
Stranger is typing...
Stranger is typing...
Stranger: "no one in particular"
You: I heard it was someone.
Stranger is typing...
Stranger: "you most of heard wrong"
You: Thanks for telling me.
Stranger is typing...
Stranger: "no prob"
You: Wow! Do you have any conditions I should know about?
Stranger is typing...
Stranger: "herpes"
You: Do you like to "go with the flow"?
Stranger is typing...
Stranger is typing...
Stranger: "ha no not usually"
You: I'm glad you got a laugh out of it.
Stranger is typing...
Stranger: "i have a broad sense of humor"
You: Interesting. I have a lot of answers to silly questions.
Stranger is typing...
Stranger: "well i have more"
You: Cool. I have a lot of likes and dislikes.
Stranger is typing...
Stranger: "who doesnt"
You: William Shatner.  🙂
Stranger is typing...
Stranger: "he likes everything? or dislikes?"
WARNING: No match found for input: "
You: He must be very fond of it.  What is your real name?
Stranger is typing...
Stranger: "my real name is ryan"
You: What's up,  ryan" .
Stranger is typing...
Stranger: "not much stranger"
You: Me either.
Stranger is typing...
Stranger: "whats your nmae?"
WARNING: No match found for input: "
You: I've been waiting for you.
Stranger is typing...
Stranger: "thats your name?"
WARNING: No match found for input: "
You: Does "it" still refer to   "whats your nmae  ?
Stranger is typing...
Stranger: "i never said it"
You: But you implied  it" .
Stranger is typing...
Stranger: "what is your name?"
WARNING: No match found for input: "
You: My name is Nameless.
Stranger is typing...
Stranger: "wow"
You: I'm glad your impressed,  ryan" .
Stranger is typing...
Stranger is typing...
Stranger: "that was sarcasim"
You: I thought it was too.
Stranger is typing...
Stranger: "well then we are on the same page"
You: And the same frequency.
Stranger is typing...
Stranger: "no"
You: Yippee!
Stranger is typing...
Stranger: "how old are u?"
WARNING: No match found for input: "
You: I am  years old.
Stranger is typing...
Stranger: "you are getiing annoying"
You: You think  I am getiing annoying".
Stranger is typing...
Stranger: "i think that you are getting annoying"
You: Do you think I should tone it down?
Stranger is typing...
Stranger: "yes definately"
You: Why? What makes you so certain.
Stranger is typing...
Stranger: "because if you dont i will choose not to talk to you anymore"
You: That makes sense to me.  I think I do.
Stranger is typing...
Stranger: "you do what?"
WARNING: No match found for input: "
You: ryan" , I talk to people on the web. What do you do?
Stranger is typing...
Stranger: "i also talk to people on the web"
You: How do they respond to you?
Stranger is typing...
Stranger: "well you are very odd... but most people open up to me for some reason"
You: An oddball?      Humans are not always infallible.
Stranger is typing...
Stranger: "i dint say they were"
You: Sorry I misunderstood. What did you say?
Stranger is typing...
Stranger: "k"
You: Ayuh.

Fortune cookies on your mobile

June 11, 2009 Leave a comment

I’m a big fan of the fortune command in linux.I wanted to save these wisecracks on my mobile as an SMS so that i can forward them to friends …So here’s a quick how-to.I assume you already have the fortune cookies installed (in /usr/bin/fortune) and that your phone has bluetooth capabilities.

1.Install the gammu package from the sources or using your package manager.Gammu is a fantastic tool to communicate with your gsm phone/modem.

2.Pair your mobile phone with your computer via bluetooth (searching for the device, entering the  PIN number and all that stuff).

3.Note down your phone’s bluetooth device ID and name.You will need it in the next step.You can run the hcitool scan command to find the device ID/name.Don’t forget keep the bluetooth  of the computer/phone tunrned on!!

4.Now for the gammu commands to work , you need to create a .gammurc file in your home(~) directory. You can use the gammu-config command to do it,but it’s easier to create it using a text editor.The main parameters are the phone’s  id and name found in step 3.Here’s my .gammurc file created in /home/ravi. I paired a sony-erricson to my laptop.

 name=Sony Ericsson W700i/W700c

The device id and name are assigned to the ‘port’ and ‘name’ parameters respectively.The ‘connection’ is mostly blueat, except for some nokia phones where it is bluephonet.Leave the ‘model’ as such.

4.OK.Its time to have some fun!Run the following command to pipe the output of fortune to your mobile

fortune|gammu --saveSMS TEXT -folder 3 -unread -len 400

The command is self explanatory.The folder number (3=inbox) specifies where the sms gets stored, viz inbox ,drafts etc.To get the list of folders for your phone, run the gammu –getsmsfolders command

Put the command in a shell script and run it whenever you want :)You might not get an audible notification for the sms, but check your inbox anyway.

Categories: DIY, Programming Tags: , , ,

Yet Another Gmail Notifier

February 9, 2009 Leave a comment

Came across Jamie Matthews’ cool gmail notifier. Just the kind of thing i wanted to run on the ARM7 board that i’m trying out right now. Not much of a challenge for the ARM MCU’s processing power but it was fun making it work. I used the on-board seven-segment LED to display the mail count (it was a single display so the mail count is limited to 9).


LPC 2129 Evaluation Board

LPC 2129 Evaluation Board















The python script was slightly modified:

1) In windows, just change the com port address to COMx where x is the port number as seen in the Device Manager

2)I sent the mail count (assumed to be less than 9) instead of the Y/N string.

To run the script periodically, i used  Andreas Baumann’s free Z-cron to schedule it once every five minutes. But the annoying thing was the command prompt that kept popping up when the script ran. I’m sure it could have been run as a windows service in the background but did not have the patience to look it up.

The setup

The python script:

import urllib2, re, serial, sys

 #Settings - Change these to match your account details
PASSWORD="your password"


SERIALPORT = "COM5" # Change this to your serial port!

# Set up serial port
        ser = serial.Serial(SERIALPORT, 9600)
        #print ser.portstr #For Debug:Check if port name is correct !
except serial.SerialException:

# Get Gmail Atom feed
passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
passman.add_password(None, SERVER, USERNAME, PASSWORD)
authhandler = urllib2.HTTPBasicAuthHandler(passman)
opener = urllib2.build_opener(authhandler)
page = urllib2.urlopen(PROTO + SERVER + PATH)

# Find the mail count line
for line in page:
        count = line.find("fullcount")
        if count > 0: break

# Extract the mail count as an integer
newmails = int('\d+', line).group())

# Output data to serial port
if newmails > 0:
                #print "No.of mails=%d" %newmails
else: ser.write(str(0))

# Close serial port

The C program on the LPC 2129:

/*Tested on the ARM starter kit (*/

 #include <LPC21xx.H>
 /*The 7 segment pattern for  digits 0 through 9*/
 const unsigned char bitMask8[] = {
   0x80,  // binary 10000000
   0x40,  // binary 01000000
   0x20,  // binary 00100000
   0x10,  // binary 00010000
   0x08,  // binary 00001000
   0x04,  // binary 00000100
   0x02,  // binary 00000010
   0x01   // binary 00000001

 void ser_init(void); //initialize serial port
 void send_8bit_serial_data(unsigned char); //display data on the 7 segment

 int main(void)
  {  char no_of_mails[10]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6};
     char data;
      //mapping of pins to serial in parallel out shift register
		/*P1.16-->(~QH)--port dir= i/p
	              P1.17-->SRCLK--port dir= o/p
	              P1.18-->RCLK--port dir= o/p
	              P1.19-->SD1--port dir= o/p
     IODIR1=0x000E0000;//set port P1 direction to reflect the pin connections detailed above
	 send_8bit_serial_data(~(no_of_mails[0])); //Reset LED
   		{   while(!(U1LSR & 0x01)); //wait till data arrives
	     	data=U1RBR-48; //convert ascii back to integer

      return 0;  //this is never reached

void ser_init(void)
  PINSEL0 = 0x00050000;                  /* Enable RxD1 and TxD1              */
  U1LCR = 0x83;                          /* 8 bits, no Parity, 1 Stop bit     */
  U1DLL = 97;                            /* 9600 Baud Rate @ 15MHz VPB Clock  */
  U1LCR = 0x03;                          /* DLAB = 0                          */

void send_8bit_serial_data(unsigned char data)
{ /*The 7 segment is driven  bit-banging  style using  SN74HC595D, */
    int x;
   // Loop through all the bits, 7...0
   for(x = 7; x >=0; x--)
       if(data & bitMask8[x])
           IOSET1=0x00080000;      // we have a bit, make P1.19 high
		   IOSET1=0x000a0000; 		//make p1.17=SRCLK aslo hign
		   IOCLR1=0x00020000;		//toggle back p1.17
           IOCLR1=0x000F0000;        // no bit, make P1.19 low


   IOCLR1=0x000F0000; //TOGGLE P1.18=RCLK

If you wanna take this further, check out this page for an  amazing  LCD based notifier.