#!/usr/bin/python
import signal
import socket
from BaseHTTPServer import HTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler
from os import sep,fstat
import sys
import shutil
import datetime
import ConfigParser
filename = '/usr/local/etc/simplehttp.ini'
sys.stdout = open("/var/log/simplehttp/out.log","a")
sys.stderr = open("/var/log/simplehttp/error.log","a")

try:
    config = ConfigParser.ConfigParser()
    config.read(filename)
    PORT_NUMBER = int(config.get('simplehttp','PORT'))
except :                                                                                                                                                                                                                         
    PORT_NUMBER = 7979                                                                                                                                                                                                           
                                                                                                                                                                                                                                 
DIRECTORY = "/var/lib/jelastic/backup/export"                                                                                                                                                                                    
                                                                                                                                                                                                                                 
def signal_term_handler(signal, frame):                                                                                                                                                                                          
    today = datetime.datetime.today().strftime("%a, %d %b %Y %X")                                                                                                                                                                
    print today, "- - got SIGTERM"                                                                                                                                                                                               
    sys.stdout.flush()                                                                                                                                                                                                           
    server.socket.close()                                                                                                                                                                                                        
    sys.exit(0)                                                                                                                                                                                                                  
                                                                                                                                                                                                                                 
signal.signal(signal.SIGTERM, signal_term_handler)                                                                                                                                                                               
                                                                                                                                                                                                                                 
class myHandler(SimpleHTTPRequestHandler):                                                                                                                                                                                       
    #Handler for the GET requests                                                                                                                                                                                                
    def do_GET(self):                                                                                                                                                                                                            
        self.error_message_format='<head><title>Error response</title></head><body><h1>Error response</h1><p>Error code %(code)d.<p>%(explain)s.</body>'                                                                         
        try:                                                                                                                                                                                                                     
            if self.path.endswith(".tar.gz"):                                                                                                                                                                                    
                mimetype='application/x-gzip'                                                                                                                                                                                    
                f = open(DIRECTORY + sep + self.path)                                                                                                                                                                            
                self.send_response(200)                                                                                                                                                                                          
                self.send_header('Content-type',mimetype)                                                                                                                                                                        
                size = fstat(f.fileno()).st_size                                                                                                                                                                                 
                self.send_header('Content-Length', size)                                                                                                                                                                         
                self.end_headers()                                                                                                                                                                                               
                print "%s 200 - %s - %s" %( self.date_time_string(), self.headers.getheaders("X-Real-IP"), self.requestline )
                sys.stdout.flush()
                if self.command == "HEAD":
                        f.close
                        return
                shutil.copyfileobj(f, self.wfile)
                f.close
            else:
                self.send_error(404,'File Not Found: %s' % self.path)
                print "%s 404 - %s - %s - wrong file request" %( self.date_time_string(), self.headers.getheaders("X-Real-IP"), self.requestline )
                sys.stdout.flush()
            return

        except IOError:
            self.send_error(404,'File Not Found: %s' % self.path)
            print "%s 404 - %s - %s" %( self.date_time_string(), self.headers.getheaders("X-Real-IP"), self.requestline )
            sys.stdout.flush()

    def do_HEAD(self):
        self.do_GET()
        return

class HTTPServerV6(HTTPServer):
    address_family = socket.AF_INET6

if __name__ == '__main__':
    try:
        server = HTTPServerV6(('::', PORT_NUMBER), myHandler)
        server.serve_forever()

    except KeyboardInterrupt:
        print '^C received, shutting down the web server'
        server.socket.close()