Simple http server that provides camera pictures on request

run-surveillance-server.py

### installation:
# sudo apt-get install fswebcam autossh
#
### test camera:
# fswebcam -r 640x480 -S 25 --jpeg 85 -D 1 /tmp/web-cam-shot.jpg && opn /tmp/web-cam-shot.jpg
#
### running:
# PORT=10007
# autossh -M 20000 -f -N <YOUR_VPS> -R 8080:localhost:"$PORT" -C
# python run-surveillance-server.py "$PORT" "/tmp/webcam.jpg"
### check 
# check in browser http://YOUR_VPS:8080
#

import SimpleHTTPServer
import SocketServer
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
import sys


def load(file):
    with open(file, 'rb') as file:
        return file.read()

# credits go to:
# https://gist.github.com/fxsjy/5465353
class Handler(BaseHTTPRequestHandler):
    ''' Main class to present webpages and authentication. '''
    def do_HEAD(self):
        print "send header"
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()

    def do_AUTHHEAD(self):
        print "send header"
        self.send_response(401)
        self.send_header('WWW-Authenticate', 'Basic realm=\"Test\"')
        self.send_header('Content-type', 'text/html')
        self.end_headers()

    def do_GET(self):
        ''' Present frontpage with user authentication. '''
        if self.headers.getheader('Authorization') == None:
            self.do_AUTHHEAD()
            self.wfile.write('no auth header received')
            pass
        elif self.headers.getheader('Authorization') == 'Basic dXNlcjpVbmdlc3NhYmxlUGFzc3dvcmQ=': # user:UngessablePassword
            self.send_response(200)
            self.send_header("Content-type", "image/jpeg")
            self.end_headers()

            import os
            import datetime
            file = sys.argv[2]
            os.system("fswebcam -r 640x480 -S 25 --jpeg 85 -D 1 " + file)

            self.wfile.write(load(file))
            pass
        else:
            self.do_AUTHHEAD()
            self.wfile.write(self.headers.getheader('Authorization'))
            self.wfile.write('not authenticated')
            pass

httpd = SocketServer.TCPServer(("", int(sys.argv[1])), Handler)

httpd.serve_forever()

if __name__ == '__main__':
    main()