def check(request):
""" Respond to the "/account/check" API call.
"""
try:
# Extract our payload from the request parameters.
request_payload = api_helper.process_request(request)
if "error" in request_payload: return request_payload['error']
# Check that the required fields have all been supplied.
error = api_helper.check_fields(request_payload, ["session_key",
"account_id",
"update_id"])
if error != None: return error
# Get the values we need from the payload.
session = request_payload['session']
account_id = request_payload['fields']['account_id']
update_id = request_payload['fields']['update_id']
if not account_helper.is_valid_account_id(account_id):
return api_helper.error(request_payload,
api_errors.INVALID_ACCOUNT_ID)
# Make sure the user is allowed to access the given account.
if account_id != None:
if session.user.user_id != account_id.get("user_id"):
return api_helper.error(request_payload,
api_errors.UNAUTHORIZED)
# Get the desired account, if it exists.
account = account_helper.get_account(account_id)
# See if the account has changed since the client last downloaded it.
if account != None:
changed = (account.update_id != update_id)
else:
changed = (update_id != 0)
# Finally, return the response payload back to the caller.
response_payload = {}
if changed: response_payload['changed'] = 1
else: response_payload['changed'] = 0
return api_helper.response(request_payload, response_payload)
except:
traceback.print_exc()
return HttpResponseServerError()
def get(request):
""" Respond to the "/account/get" API call.
"""
try:
# Extract our payload from the request parameters.
request_payload = api_helper.process_request(request)
if "error" in request_payload: return request_payload['error']
# Check that the required fields are present.
error = api_helper.check_fields(request_payload,
required_fields=["session_key",
"account_id"])
if error != None: return error
session = request_payload['session']
account_id = request_payload['fields']['account_id']
if not account_helper.is_valid_account_id(account_id):
return api_helper.error(request_payload,
api_errors.INVALID_ACCOUNT_ID)
# Make sure the user is allowed to access the given account.
if account_id != None:
if session.user.user_id != account_id.get("user_id"):
return api_helper.error(request_payload,
api_errors.UNAUTHORIZED)
# Get the desired account, if it exists.
account = account_helper.get_account(account_id)
# Build our response payload, based on the account's details. We start
# with the account record itself.
response_payload = {}
response_payload['account'] = {}
if account != None:
response_payload['account']['exists'] = 1
else:
response_payload['account']['exists'] = 0
# Add the account's current balance.
balance = decimal.Decimal("0.00")
if account != None:
transactions = account.transaction_set.all().order_by("timestamp")
for transaction in transactions:
balance = balance + transaction.amount
response_payload['account']['balance'] = balance
# Add the list of transactions for this account.
response_payload['account']['transactions'] = []
if account != None:
transactions = account.transaction_set.all().order_by("timestamp")
for transaction in transactions:
timestamp = transaction.timestamp.isoformat()
amount = transaction.amount
metadata = transaction.get_metadata()
transaction_data = {'timestamp' : timestamp,
'amount' : amount,
'meta_data' : metadata}
other_account = transaction.other_account
if other_account != None:
other_account_id = account_helper.make_account_id(
other_account.user_id,
other_account.associated_user_id,
other_account.suffix)
transaction_data['other_account'] = other_account_id
response_payload['account']['transactions'].append(
transaction_data)
# Add the account's metadata. Note that we exclude the password and pin
# number, for security reasons.
if account != None:
metadata = account.get_metadata()
else:
metadata = {}
if "password" in metadata: del metadata['password']
if "pin_number" in metadata: del metadata['pin_number']
response_payload['account']['meta_data'] = metadata
# Add the account's policies, taking into account each policy's default
# value, the user-specific override (if any), and account-specific
# override (if any).
policies = {}
for policy in Policy.objects.all():
default = policy.get_default()
try:
override = PolicyUserOverride.objects.get(policy=policy,
user=session.user)
user_override = override.get_override()
except PolicyUserOverride.DoesNotExist:
user_override = None
if account != None:
try:
override = \
PolicyAccountOverride.objects.get(policy=policy,
account=account)
account_override = override.get_override()
except PolicyAccountOverride.DoesNotExist:
account_override = None
else:
account_override = None
if account_override != None:
value = account_override
elif user_override != None:
value = user_override
else:
value = default
policies[policy.name] = value
response_payload['account']['policies'] = policies
# Add the account's update ID.
if account != None:
response_payload['update_id'] = account.update_id
else:
response_payload['update_id'] = 0
# Finally, return the response payload back to the caller.
return api_helper.response(request_payload, response_payload)
except:
traceback.print_exc()
return HttpResponseServerError()
def get(request):
""" Respond to the "/policy/get" API call.
We let the caller retrieve a policy override (either at the user or the
individual account level) for a given policy.
"""
try:
# Extract our payload from the request parameters.
request_payload = api_helper.process_request(request)
if "error" in request_payload: return request_payload['error']
# Check that the required fields are present.
error = api_helper.check_fields(request_payload,
required_fields=["session_key",
"policy"],
optional_fields=["account_id"])
if error != None: return error
user = request_payload['session'].user
account_id = request_payload['fields'].get("account_id")
policy_name = request_payload['fields']['policy']
# If an account ID was specified, make sure the user is allowed to
# access that account.
if account_id != None:
if user.user_id != account_id.get("user_id"):
return api_helper.error(request_payload,
api_errors.UNAUTHORIZED)
# Get the Policy the user wants the override for.
try:
policy = Policy.objects.get(name=policy_name)
except Policy.DoesNotExist:
return api_helper.error(request_payload,
api_errors.NO_SUCH_POLICY)
# Get the appropriate override for this policy, if any.
if account_id != None:
# Retrieve the account-level override for this policy and account,
# if any.
account = account_helper.get_account(account_id)
if account != None:
try:
override = PolicyAccountOverride.objects.get(policy=policy,
account=account)
override_value = override.get_override()
except PolicyAccountOverride.DoesNotExist:
override_value = None
else:
override_value = None
else:
# Retrieve the user-level override for this policy and user, if
# any.
try:
override = PolicyUserOverride.objects.get(policy=policy,
user=user)
override_value = override.get_override()
except PolicyUserOverride.DoesNotExist:
override_value = None
# Finally, return the policy override (if any) back to the caller.
response_payload = {}
if override_value != None:
response_payload['override'] = override_value
return api_helper.response(request_payload, response_payload)
except:
traceback.print_exc()
return HttpResponseServerError()
