示例#1
0
def init_session(cookie, user=None):
    '''Initiates the session. It uses the cookie passed in (ie the value of 
    os.environ.get("HTTP_COOKIE", "") loaded into a Cookie.SimpleCookie). Before trying to validate
    the session and generating a new session cookie the function first calls clear_old_sessions(), 
    ensuring only non-expired sessions are validated. If the session validates then it generates
    a new session cookie for that session. If anything else happens it creates a new session and
    generates a new cookie. The method returns the generated cookie and the session dictionary.'''
    clear_old_sessions()
    c = cookie
    ses_dict = {}
    if cookie.has_key('session') and cookie.has_key('session_sig'):
        
        cook = cookie['session'].value
        cook_dict = nDDB.decodeDDB(cook)
        try:
            #print "Content-type: text/html"
            #print
            logger.writeln('session_id: ', cook_dict['sessionID'])
            session = get_session(cook_dict['sessionID'])
            logger.writeln('database_session_dict: ', session)
            if session: 
                cookie_check = check_cookie(session['msg_sig'], session['sig_id'], 
                                                                          cook_dict['time'], cook)
            else: cookie_check = None
            logger.writeln('cookie_check: ', cookie_check)
            if cookie_check:
                sigID = genSigID()
                logger.writeln('sigID: ', sigID)
                epochtime = str(time.time())
                logger.writeln('epochtime: ', epochtime)
                if user == None: user = session['usr_id']
                logger.writeln('user: '******'session_id'], sigID, epochtime)
                logger.writeln('c: ', c)
                logger.writeln('msg_sig: ', msg_sig)
                ses_dict = update_session(session['session_id'], sigID, msg_sig, user)
                logger.writeln('ses_dict: ', ses_dict)
            else:
                c, ses_dict = make_new_session()
        except Exception, e:
            print "Content-type: text/html"
            print
            print '<h1>Cookie Session Error</h1>'
            print e, '<br>'*5
            logger.writeln()
            logger.writeln('COOKIE SESSION ERROR: ', e)
            c, ses_dict = make_new_session()
示例#2
0
def verify_session():
    '''This method returns True if the current session is valid, False otherwise.'''
    cookie = Cookie.SimpleCookie()
    cookieHdr = os.environ.get("HTTP_COOKIE", "")
    cookie.load(cookieHdr)
    
    if cookie.has_key('session') and cookie.has_key('session_sig'):
        cook = cookie['session'].value
        cook_dict = nDDB.decodeDDB(cook)
        try:
            session = get_session(cook_dict['sessionID'])
            if session: 
                return check_cookie(session['msg_sig'], session['sig_id'], 
                                                                    cook_dict['time'], cook)
            return False
        except:
            return False
    else:
        return False