def get_current_session(self, request):
"""
Returns a session object if a session can be detected given the HTTP request.
This may include sifting through cookie values, or request params.
Args:
request
Returns:
Session or None
"""
quoted_email = request.request.cookies.get(WEB_ADMIN_PARAMS.COOKIE_EMAIL_PARAM)
quoted_ssid = request.request.cookies.get(WEB_ADMIN_PARAMS.COOKIE_KEY_PARAM)
quoted_exp = request.request.cookies.get(WEB_ADMIN_PARAMS.COOKIE_EXPIRATION)
if quoted_email == "" or quoted_ssid == "" or quoted_exp == "" or quoted_email == None or quoted_ssid == None or quoted_exp == None:
return None
else:
import base64
try:
unquoted_email = base64.decodestring(quoted_email)
unquoted_ssid = base64.decodestring(quoted_ssid)
unquoted_exp = base64.decodestring(quoted_exp)
decrypted_email = encryption.des_decrypt_str(unquoted_email)
decrypted_ssid = encryption.des_decrypt_str(unquoted_ssid)
decrypted_exp = encryption.des_decrypt_str(unquoted_exp)
except:
logging.error("Error decoding sesssion: UnicodeDecodeError: 'ascii' codec can't decode byte: ordinal not in range(128)")
return None
""" Make sure that the session has not expired """
now = time.time()
if not decrypted_exp:
decrypted_exp = 0
exp = float(decrypted_exp)
if(now < exp):
""" Make sure that the session is still valid """
account = memcache_db.get_entity(decrypted_email, "Accounts")
if account != None and account.cookieKey == decrypted_ssid:
""" Create a new session object and return it """
self.email = decrypted_email
self.ssid = decrypted_ssid
self.expiration = decrypted_exp
self.account = account
else:
return None
else:
return None
return self
def get(self):
from serverside.tools import encryption
"""Do some simple encryption and show results """
mystr = "hello, world"
self.response.out.write("encrypt string: " + mystr + "<br/>")
mystr_enc = encryption.des_encrypt_str("hello, world")
self.response.out.write("encrypted: " + mystr_enc + "<br/>")
mystr_dec = encryption.des_decrypt_str(mystr_enc)
self.response.out.write("decrypted: " + mystr_dec + "<br/>")
def get(self):
from serverside.tools import encryption
"""Do some simple encryption and show results """
mystr = "hello, world"
self.response.out.write("encrypt string: " + mystr + "<br/>")
mystr_enc = encryption.des_encrypt_str("hello, world")
self.response.out.write("encrypted: " + mystr_enc + "<br/>")
mystr_dec = encryption.des_decrypt_str(mystr_enc)
self.response.out.write("decrypted: " + mystr_dec + "<br/>")
