def parse_request_args(request: Request) -> Dict:
asset = Asset.objects.filter(code=request.GET.get("asset_code"),
sep6_enabled=True,
deposit_enabled=True).first()
if not asset:
return {"error": render_error_response(_("invalid 'asset_code'"))}
lang = request.GET.get("lang")
if lang:
err_resp = validate_language(lang)
if err_resp:
return {"error": err_resp}
activate_lang_for_request(lang)
memo_type = request.GET.get("memo_type")
if memo_type and memo_type not in Transaction.MEMO_TYPES:
return {"error": render_error_response(_("invalid 'memo_type'"))}
try:
memo = memo_str(request.GET.get("memo"), memo_type)
except (ValueError, MemoInvalidException):
return {
"error": render_error_response(_("invalid 'memo' for 'memo_type'"))
}
return {
"asset": asset,
"memo_type": memo_type,
"memo": memo,
"lang": lang,
"type": request.GET.get("type"),
**extract_sep9_fields(request.GET),
}
def test_memo_str_hash_memo():
raw_bytes = token_bytes(32)
memo_str = utils.memo_hex_to_base64(raw_bytes.hex())
assert utils.memo_str(HashMemo(raw_bytes)) == (
memo_str,
Transaction.MEMO_TYPES.hash,
)
def get(account: str, request: Request) -> Response:
if request.GET.get(
"account") and account != request.GET.get("account"):
return render_error_response(
_("The account specified does not match authorization token"),
status_code=403,
)
elif not (request.GET.get("id") or request.GET.get("account")):
return render_error_response(
_("unable to identify a user without 'id' or 'account'"))
elif request.GET.get("memo_type") and not request.GET.get("memo"):
return render_error_response(_("missing 'memo' for 'memo_type'"))
try:
# validate memo and memo_type
memo_str(request.GET.get("memo"), request.GET.get("memo_type"))
except ValueError:
return render_error_response(_("invalid 'memo' for 'memo_type'"))
try:
response_data = rci.get({
"id": request.GET.get("id"),
"sep10_client_account": account,
"account": request.GET.get("account"),
"memo": request.GET.get("memo"),
"memo_type": request.GET.get("memo_type"),
"type": request.GET.get("type"),
"lang": request.GET.get("lang"),
})
except ValueError as e:
return render_error_response(str(e), status_code=400)
except ObjectDoesNotExist as e:
return render_error_response(str(e), status_code=404)
try:
validate_response_data(response_data)
except ValueError:
logger.exception(
_("An exception was raised validating GET /customer response"))
return render_error_response(_("unable to process request."),
status_code=500)
return Response(response_data)
def put(account: str, request: Request) -> Response:
if request.data.get("id") and not request.data.get("account"):
if not isinstance(request.data.get("id"), str):
return render_error_response(_("bad ID value, expected str"))
elif account != request.data.get("account"):
return render_error_response(
_("The account specified does not match authorization token"),
status_code=403,
)
elif request.data.get("memo_type") and not request.data.get("memo"):
return render_error_response(_("missing 'memo' for 'memo_type'"))
if request.data.get("memo"):
try:
# validate memo and memo_type
memo_str(request.data.get("memo"),
request.data.get("memo_type"))
except ValueError:
return render_error_response(
_("invalid 'memo' for 'memo_type'"))
try:
customer_id = rci.put({
"id": request.data.get("id"),
"account": account,
"memo": request.data.get("memo"),
"memo_type": request.data.get("memo_type"),
**extract_sep9_fields(request.data),
})
except ValueError as e:
return render_error_response(str(e), status_code=400)
except ObjectDoesNotExist as e:
return render_error_response(str(e), status_code=404)
if not isinstance(customer_id, str):
logger.error(
"Invalid customer ID returned from put() integration. Must be str."
)
return render_error_response(_("unable to process request"))
return Response({"id": customer_id}, status=202)
def delete(account_from_auth: str, request: Request, account: str) -> Response:
if account_from_auth != account:
return render_error_response("account not found", status_code=404)
try:
memo = memo_str(request.data.get("memo"),
request.data.get("memo_type"))
except ValueError as e:
return render_error_response("invalid 'memo' for 'memo_type'")
try:
rci.delete(account, memo, request.data.get("memo_type"))
except ValueError:
return render_error_response("account not found", status_code=404)
else:
return Response({}, status=200)
def parse_request_args(request: Request) -> Dict:
asset = Asset.objects.filter(code=request.GET.get("asset_code"),
sep6_enabled=True,
withdrawal_enabled=True).first()
if not asset:
return {"error": render_error_response(_("invalid 'asset_code'"))}
lang = request.GET.get("lang")
if lang:
err_resp = validate_language(lang)
if err_resp:
return {"error": err_resp}
activate_lang_for_request(lang)
memo_type = request.GET.get("memo_type")
if memo_type and memo_type not in Transaction.MEMO_TYPES:
return {"error": render_error_response(_("invalid 'memo_type'"))}
try:
memo = memo_str(request.GET.get("memo"), memo_type)
except (ValueError, MemoInvalidException):
return {
"error": render_error_response(_("invalid 'memo' for 'memo_type'"))
}
if not request.GET.get("type"):
return {"error": render_error_response(_("'type' is required"))}
if not request.GET.get("dest"):
return {"error": render_error_response(_("'dest' is required"))}
args = {
"asset": asset,
"memo_type": memo_type,
"memo": memo,
"lang": request.GET.get("lang"),
"type": request.GET.get("type"),
"dest": request.GET.get("dest"),
"dest_extra": request.GET.get("dest_extra"),
**extract_sep9_fields(request.GET),
}
# add remaining extra params, it's on the anchor to validate them
for param, value in request.GET.items():
if param not in args:
args[param] = value
return args
def deposit(account: str, request: Request) -> Response:
"""
POST /transactions/deposit/interactive
Creates an `incomplete` deposit Transaction object in the database and
returns the URL entry-point for the interactive flow.
"""
asset_code = request.POST.get("asset_code")
stellar_account = request.POST.get("account")
lang = request.POST.get("lang")
sep9_fields = extract_sep9_fields(request.POST)
if lang:
err_resp = validate_language(lang)
if err_resp:
return err_resp
activate_lang_for_request(lang)
# Verify that the request is valid.
if not all([asset_code, stellar_account]):
return render_error_response(
_("`asset_code` and `account` are required parameters"))
# Ensure memo won't cause stellar transaction to fail when submitted
try:
memo = memo_str(request.POST.get("memo"),
request.POST.get("memo_type"))
except ValueError:
return render_error_response(_("invalid 'memo' for 'memo_type'"))
amount = None
if request.POST.get("amount"):
try:
amount = Decimal(request.POST.get("amount"))
except DecimalException as e:
return render_error_response(_("Invalid 'amount'"))
# Verify that the asset code exists in our database, with deposit enabled.
asset = Asset.objects.filter(code=asset_code).first()
if not asset:
return render_error_response(_("unknown asset: %s") % asset_code)
elif not (asset.deposit_enabled and asset.sep24_enabled):
return render_error_response(
_("invalid operation for asset %s") % asset_code)
try:
Keypair.from_public_key(stellar_account)
except Ed25519PublicKeyInvalidError:
return render_error_response(_("invalid 'account'"))
try:
rdi.save_sep9_fields(stellar_account, sep9_fields, lang)
except ValueError as e:
# The anchor found a validation error in the sep-9 fields POSTed by
# the wallet. The error string returned should be in the language
# specified in the request.
return render_error_response(str(e))
# Construct interactive deposit pop-up URL.
transaction_id = create_transaction_id()
Transaction.objects.create(
id=transaction_id,
stellar_account=account,
asset=asset,
kind=Transaction.KIND.deposit,
status=Transaction.STATUS.incomplete,
to_address=account,
protocol=Transaction.PROTOCOL.sep24,
memo=memo,
memo_type=request.POST.get("memo_type") or Transaction.MEMO_TYPES.hash,
)
logger.info(f"Created deposit transaction {transaction_id}")
url = interactive_url(
request,
str(transaction_id),
account,
asset_code,
settings.OPERATION_DEPOSIT,
amount,
)
return Response(
{
"type": "interactive_customer_info_needed",
"url": url,
"id": transaction_id
},
status=status.HTTP_200_OK,
)
def test_memo_str_text_memo():
assert utils.memo_str(TextMemo("test")) == ("test",
Transaction.MEMO_TYPES.text)
def test_memo_str_bad_input_type():
with pytest.raises(ValueError):
utils.memo_str(Mock())
def test_memo_str_none():
assert utils.memo_str(None) == (None, None)
def test_memo_str_id_memo():
assert utils.memo_str(IdMemo(123)) == ("123", Transaction.MEMO_TYPES.id)
