Inlägg

# Import required libraries
import ftplib,os,sys,time,socket
from subprocess import call
import RPi.GPIO as GPIO


class netCam():
    def __init__(self):
        self.file='test2.jpg'
        # Initialize LEDs
        try:
            self.initGPIO()
        except:
            raise
            sys.exit("ERROR: Could not initiate GPIO!")
        
        # This LED is ON
        for LED in self.LedSeq:
            GPIO.output(LED, True)
            time.sleep(0.2)
        
        GPIO.output(11, True)
        GPIO.output(9, True)
        # Create a TCP/IP socket
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        # Bind the socket to the port
        server_address = ('', 10002)
        print >>sys.stderr, 'starting up on %s port %s' % server_address
        self.sock.bind(server_address)
        # Listen for incoming connections
        self.sock.listen(1)
    # --------------------------------------------------------------------------------
    def initGPIO(self):
        try:
            # Tell GPIO library to use GPIO references
            GPIO.setmode(GPIO.BCM)

            # Set Switch GPIO as input
            GPIO.setup(7 , GPIO.IN)

            # List of LED GPIO numbers
            self.LedSeq = [4,17,22,10,9,11]

            # Set up the GPIO pins as outputs and set False
            print "Setup Outputs"
            for x in range(6):
                GPIO.setup(self.LedSeq[x], GPIO.OUT)
                GPIO.output(self.LedSeq[x], False)
        except:
            print " ERROR: There was a problem with initaion of the GPIOs"
            raise
    # --------------------------------------------------------------------------------
    def takeImage(self):
        try:
            GPIO.output(22, True)
            GPIO.output(4, False)
            # Remove the old file if present
            if os.path.isfile(self.file):
                os.remove(self.file)
            # Take the photo
            call(['/usr/bin/raspistill','-o',self.file,'-t','10','-f','-q','10'])
            
        except:
            print " ERROR: There was a problem with taking the image"
            GPIO.output(22, False)
            GPIO.output(4, True)
            #raise
    # --------------------------------------------------------------------------------
    def sendFile(self):
       try:
          GPIO.output(10, True)
          GPIO.output(17, False)
          sftp=ftplib.FTP_TLS()
          print "    Connecting,",
          sftp.connect('192.168.10.5',21,10)
          print "-Done \n    Setup secure control connection,",
          sftp.auth()
          print "-Done \n    Setup secure data connection,",
          sftp.prot_p()
          print "-Done \n    Login,",
          sftp.login('x','x')
          print "-Done"
          #sftp.retrlines('LIST')
          sftp.cwd('www')
          #sftp.retrlines('LIST')
          sftp.sendcmd("TYPE I")
          fileHandle=open(self.file)
    
          sftp.storbinary('STOR %s' %self.file,fileHandle)
          sftp.close()

       except:
          print " ERROR: There was a problem with uploading the image"
          GPIO.output(10, False)
          GPIO.output(17, True)
          #raise
    # --------------------------------------------------------------------------------
    def waitForConnection(self):
        def connection():
            # Wait for a connection
            print >>sys.stderr, 'waiting for a connection'
            connection, client_address = self.sock.accept()
            
	    try:        
                print >>sys.stderr, 'connection from', client_address
  
                # Receive the command, only accept ONE message of 1024 bytes
                data = connection.recv(1024)
                print >>sys.stderr, 'received "%s"' % data
                if data=='photo':
                    connection.sendall('Pi is taking a photo')
                    takePhoto=True
                elif data:
                    print >>sys.stderr, 'sending data back to the client'
                    data='Greeings from PI, You sent: %s' %data
                    connection.sendall(data)
                    takePhoto=False		    
            except:
	        takePhoto=False
		
	    finally:
                # Clean up the connection
                connection.close()
		return takePhoto
            		
        while True:
	    if connection():
	        break
            else:
	        pass
		
           
# --------------------------------------------------------------------------------
# M A I N    
# --------------------------------------------------------------------------------

try:
    cB=netCam()

    # Initialize LEDs
    print "Initialize LEDs"
    try:
        cB.initGPIO()
    except:
        sys.exit("ERROR: Could not initiate!")
    time.sleep(0.5)

    GPIO.output(11, True)
    GPIO.output(9, True)

    # Loop until users quits with CTRL-C
    print "Ready to take image"
    while True:
    #   if GPIO.input(7):
        cB.waitForConnection()
        cB.takeImage()
        cB.sendFile()
        print " -Done"
        GPIO.output(22, False)
        GPIO.output(10, False)

except KeyboardInterrupt:
    print " You pressed Ctrl-C"
except:
    print "ERROR: An error occured"
    raise
finally:
    # Reset GPIO settings
    GPIO.cleanup()

<html>
<head>
</head>
<body>
<?php
$message=$_POST['message'];

echo "<html>";
print("<br>Start php-script <br>");
echo "</html>";

// The recieved message
echo "Typed message: $message";

// Socket error handeling
if(!($sock = socket_create(AF_INET, SOCK_STREAM, 0)))
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);

    die("Couldn't create socket: [$errorcode] $errormsg \n");
}
echo "<html>";
print("<br>Socket created <br>");
echo "</html>";


// Establish a connection
if(!socket_connect($sock , '192.168.10.11' , 10002))
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);
    
    echo "<html>";
    print("Connection to Pi could not be established <br>");
    echo "</html>";
    die("Could not connect: [$errorcode] $errormsg \n");
}
echo "<html>";
print("Connection established <br>");
echo "</html>";



//Send the message to the server
if( ! socket_send ( $sock , $message , strlen($message) , 0))
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);
    
    die("Could not send data: [$errorcode] $errormsg \n");
}
echo "<html>";
print("Message send successfully <br> Waiting for response <br>");
echo "</html>";

//Now receive reply from server
if(socket_recv ( $sock , $buf , 2045 , MSG_WAITALL ) === FALSE)
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);

    die("Could not receive data: [$errorcode] $errormsg \n");
}
//print the received message
echo "Recieved message: $buf <br>";
echo "<html>";
print("End php-script <br>");
echo "</html>";
?>
</body>
</html>

<html>
<head>
<title>Take a bite of Pi</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<p> </p>
<p><font face="Verdana, Arial, Helvetica, sans-serif"><strong>Send a message to my Pi:</strong></font></p>

<form name ="resultat" method="POST" action="index.php">
  <div align="left">
    <p><font face="Verdana, Arial, Helvetica, sans-serif">Enter message:</font>
        <input type="text" name="message" size="14">
        <input type="submit" value="Send msg">
    </p>
    <br>
    <font face="Verdana, Arial, Helvetica, sans-serif"><p align=left><img src="test2.jpg" width="400" height="300"></font>
  </div>
</form>
</body>
</html>