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new configuration option: wallet balance threshold

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This commit is contained in:
Christian Grothoff 2021-10-16 19:24:08 +02:00
parent 95c71daf5e
commit d1992e5983
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GPG Key ID: 939E6BE1E29FC3CC
6 changed files with 63 additions and 2 deletions
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4
src/exchange/exchange.conf
View File

@ -87,6 +87,10 @@ PRIVACY_ETAG = 0
# Set to "OAUTH2" to use OAuth 2.0 for KYC authorization.
KYC_MODE = NONE
# Balance threshold above which wallets are told
# to undergo a KYC check at the exchange. Optional,
# if not given there is no limit.
# KYC_WALLET_BALANCE_LIMIT = 150:CURRENCY
[exchange-kyc-oauth2]

29
src/exchange/taler-exchange-httpd.c
View File

@ -1279,6 +1279,35 @@ exchange_serve_process_config (void)
"CURRENCY");
return GNUNET_SYSERR;
}
if (TEH_KYC_NONE != TEH_kyc_config.mode)
{
if (GNUNET_YES ==
GNUNET_CONFIGURATION_have_value (TEH_cfg,
"exchange",
"KYC_WALLET_BALANCE_LIMIT"))
{
if ( (GNUNET_OK !=
TALER_config_get_amount (TEH_cfg,
"exchange",
"KYC_WALLET_BALANCE_LIMIT",
&TEH_kyc_config.wallet_balance_limit)) ||
(0 != strcasecmp (TEH_currency,
TEH_kyc_config.wallet_balance_limit.currency)) )
{
GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"KYC_WALLET_BALANCE_LIMIT",
"valid amount expected");
return GNUNET_SYSERR;
}
}
else
{
memset (&TEH_kyc_config.wallet_balance_limit,
0,
sizeof (TEH_kyc_config.wallet_balance_limit));
}
}
{
char *master_public_key_str;

8
src/exchange/taler-exchange-httpd.h
View File

@ -64,6 +64,14 @@ struct TEH_KycOptions
*/
struct TALER_Amount withdraw_limit;
/**
* Maximum balance a wallet can hold without
* needing KYC.
* Only valid if @e mode is not #TEH_KYC_NONE and
* if the amount specified is valid.
*/
struct TALER_Amount wallet_balance_limit;
/**
* Time period over which @e withdraw_limit applies.
* Only valid if @e mode is not #TEH_KYC_NONE.

12
src/exchange/taler-exchange-httpd_keys.c
View File

@ -1473,6 +1473,18 @@ create_krd (struct TEH_KeyStateHandle *ksh,
GNUNET_JSON_pack_data_auto ("eddsa_sig",
&exchange_sig));
GNUNET_assert (NULL != keys);
if ( (TEH_KYC_NONE != TEH_kyc_config.mode) &&
(GNUNET_OK ==
TALER_amount_is_valid (&TEH_kyc_config.wallet_balance_limit)) )
{
GNUNET_assert (
0 ==
json_object_set_new (
keys,
"wallet_balance_limit_without_kyc",
TALER_JSON_from_amount (
&TEH_kyc_config.wallet_balance_limit)));
}
{
char *keys_json;

6
src/include/taler_exchange_service.h
View File

@ -264,6 +264,12 @@ struct TALER_EXCHANGE_Keys
*/
struct GNUNET_TIME_Relative reserve_closing_delay;
/**
* Maximum amount a wallet is allowed to hold from
* this exchange before it must undergo a KYC check.
*/
struct TALER_Amount wallet_balance_limit_without_kyc;
/**
* Timestamp indicating the /keys generation.
*/

6
src/lib/exchange_api_handle.c
View File

@ -685,8 +685,6 @@ decode_keys_json (const json_t *resp_obj,
&sig),
GNUNET_JSON_spec_fixed_auto ("eddsa_pub",
&pub),
/* sig and pub must be first, as we skip those if
check_sig is false! */
GNUNET_JSON_spec_fixed_auto ("master_public_key",
&key_data->master_pub),
TALER_JSON_spec_absolute_time ("list_issue_date",
@ -695,6 +693,10 @@ decode_keys_json (const json_t *resp_obj,
&key_data->reserve_closing_delay),
GNUNET_JSON_spec_string ("currency",
&currency),
GNUNET_JSON_spec_mark_optional (
TALER_JSON_spec_amount ("wallet_balance_limit_without_kyc",
currency,
&key_data->wallet_balance_limit_without_kyc)),
GNUNET_JSON_spec_end ()
};