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add logic to parse AML decision response

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This commit is contained in:
Christian Grothoff 2023-02-02 17:06:47 +01:00
parent 3898054b10
commit f60b09f8ef
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GPG Key ID: 939E6BE1E29FC3CC
2 changed files with 139 additions and 6 deletions
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8
src/include/taler_exchange_service.h
View File

@ -4492,12 +4492,12 @@ struct TALER_EXCHANGE_AmlDecisionResponse
/**
* Array of KYC data collections returned by the exchange.
*/
const struct TALER_EXCHANGE_KycHistoryDetail *kyc_history;
const struct TALER_EXCHANGE_KycHistoryDetail *kyc_attributes;
/**
* Length of the @e kyc_history array.
* Length of the @e kyc_attributes array.
*/
unsigned int kyc_history_length;
unsigned int kyc_attributes_length;
} success;
@ -4531,6 +4531,7 @@ struct TALER_EXCHANGE_LookupAmlDecision;
* @param exchange_url HTTP base URL for the exchange
* @param h_payto which account to return the decision history for
* @param officer_priv private key of the deciding AML officer
* @param history true to return the full history, otherwise only the last decision
* @param cb function to call with the exchange's result
* @param cb_cls closure for @a cb
* @return the request handle; NULL upon error
@ -4541,6 +4542,7 @@ TALER_EXCHANGE_lookup_aml_decision (
const char *exchange_url,
const struct TALER_PaytoHashP *h_payto,
const struct TALER_AmlOfficerPrivateKeyP *officer_priv,
bool history,
TALER_EXCHANGE_LookupAmlDecisionCallback cb,
void *cb_cls);

135
src/lib/exchange_api_lookup_aml_decision.c
View File

@ -63,6 +63,93 @@ struct TALER_EXCHANGE_LookupAmlDecision
};
/**
* Parse AML decision history.
*
* @param aml_history JSON array with AML history
* @param[out] aml_history_ar where to write the result
* @return #GNUNET_OK on success
*/
static enum GNUNET_GenericReturnValue
parse_aml_history (const json_t *aml_history,
struct TALER_EXCHANGE_AmlDecisionDetail *aml_history_ar)
{
json_t *obj;
size_t idx;
json_array_foreach (aml_history, idx, obj)
{
struct TALER_EXCHANGE_AmlDecisionDetail *aml = &aml_history_ar[idx];
uint32_t state32;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_timestamp ("decision_time",
&aml->decision_time),
GNUNET_JSON_spec_string ("justification",
&aml->justification),
GNUNET_JSON_spec_uint32 ("new_state",
&state32),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (obj,
spec,
NULL,
NULL))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
aml->new_state = (enum TALER_AmlDecisionState) state32;
}
return GNUNET_OK;
}
/**
* Parse KYC response array.
*
* @param kyc_attributes JSON array with KYC details
* @param[out] kyc_attributes_ar where to write the result
* @return #GNUNET_OK on success
*/
static enum GNUNET_GenericReturnValue
parse_kyc_attributes (const json_t *kyc_attributes,
struct TALER_EXCHANGE_KycHistoryDetail *kyc_attributes_ar)
{
json_t *obj;
size_t idx;
json_array_foreach (kyc_attributes, idx, obj)
{
struct TALER_EXCHANGE_KycHistoryDetail *kyc = &kyc_attributes_ar[idx];
json_t *attributes;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_timestamp ("collection_time",
&kyc->collection_time),
GNUNET_JSON_spec_json ("attributes",
&attributes),
GNUNET_JSON_spec_string ("provider_section",
&kyc->provider_section),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (obj,
spec,
NULL,
NULL))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
kyc->attributes = attributes;
json_decref (attributes); /* this is OK, RC preserved via 'kyc_attributes' as long as needed! */
}
return GNUNET_OK;
}
/**
* Parse the provided decision data from the "200 OK" response.
*
@ -78,10 +165,49 @@ parse_decision_ok (struct TALER_EXCHANGE_LookupAmlDecision *lh,
.hr.reply = json,
.hr.http_status = MHD_HTTP_OK
};
int ret = GNUNET_SYSERR;
json_t *aml_history;
json_t *kyc_attributes;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_json ("aml_history",
&aml_history),
GNUNET_JSON_spec_json ("kyc_attributes",
&kyc_attributes),
GNUNET_JSON_spec_end ()
};
GNUNET_break (0); // FIXME: parse response!
if (GNUNET_OK !=
GNUNET_JSON_parse (json,
spec,
NULL,
NULL))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
lr.details.success.aml_history_length = json_array_size (aml_history);
lr.details.success.kyc_attributes_length = json_array_size (kyc_attributes);
{
struct TALER_EXCHANGE_AmlDecisionDetail aml_history_ar
[GNUNET_NZL (lr.details.success.aml_history_length)];
struct TALER_EXCHANGE_KycHistoryDetail kyc_attributes_ar
[lr.details.success.kyc_attributes_length];
enum GNUNET_GenericReturnValue ret = GNUNET_SYSERR;
lr.details.success.aml_history = aml_history_ar;
lr.details.success.kyc_attributes = kyc_attributes_ar;
ret = parse_aml_history (aml_history,
aml_history_ar);
if (GNUNET_OK == ret)
ret = parse_kyc_attributes (kyc_attributes,
kyc_attributes_ar);
if (GNUNET_OK == ret)
{
lh->decision_cb (lh->decision_cb_cls,
&lr);
lh->decision_cb = NULL;
}
return ret;
}
}
@ -166,6 +292,7 @@ TALER_EXCHANGE_lookup_aml_decision (
const char *exchange_url,
const struct TALER_PaytoHashP *h_payto,
const struct TALER_AmlOfficerPrivateKeyP *officer_priv,
bool history,
TALER_EXCHANGE_LookupAmlDecisionCallback cb,
void *cb_cls)
{
@ -208,6 +335,10 @@ TALER_EXCHANGE_lookup_aml_decision (
lh->decision_cb_cls = cb_cls;
lh->url = TALER_url_join (exchange_url,
arg_str,
"history",
history
? "true"
: NULL,
NULL);
if (NULL == lh->url)
{