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-more work on reverse history

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This commit is contained in:
Christian Grothoff 2022-05-22 18:21:15 +02:00
parent 8658ae03ca
commit 40daa209fb
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GPG Key ID: 939E6BE1E29FC3CC
6 changed files with 280 additions and 7 deletions
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65
src/exchange/taler-exchange-httpd_responses.c
View File

@ -735,6 +735,71 @@ TEH_RESPONSE_compile_reserve_history (
}
}
break;
case TALER_EXCHANGEDB_RO_PURSE_MERGE:
{
const struct TALER_EXCHANGEDB_PurseMerge *merge =
pos->details.merge;
struct TALER_Amount amount;
GNUNET_assert (0 >=
TALER_amount_subtract (&amount,
&merge->amount_with_fee,
&merge->purse_fee));
if (0 !=
json_array_append_new (
json_history,
GNUNET_JSON_PACK (
GNUNET_JSON_pack_string ("type",
"MERGE"),
GNUNET_JSON_pack_data_auto ("h_contract_terms",
&merge->h_contract_terms),
GNUNET_JSON_pack_data_auto ("merge_pub",
&merge->merge_pub),
GNUNET_JSON_pack_data_auto ("purse_sig",
&merge->purse_sig),
GNUNET_JSON_pack_data_auto ("purse_pub",
&merge->purse_pub),
GNUNET_JSON_pack_data_auto ("merge_sig",
&merge->merge_sig),
GNUNET_JSON_pack_data_auto ("reserve_sig",
&merge->reserve_sig),
GNUNET_JSON_pack_timestamp ("merge_timestamp",
merge->merge_timestamp),
TALER_JSON_pack_amount ("amount",
&amount),
TALER_JSON_pack_amount ("purse_fee",
&merge->purse_fee))))
{
GNUNET_break (0);
json_decref (json_history);
return NULL;
}
}
break;
case TALER_EXCHANGEDB_RO_HISTORY_REQUEST:
{
const struct TALER_EXCHANGEDB_HistoryRequest *history =
pos->details.history;
if (0 !=
json_array_append_new (
json_history,
GNUNET_JSON_PACK (
GNUNET_JSON_pack_string ("type",
"HISTORY"),
GNUNET_JSON_pack_data_auto ("reserve_sig",
&history->reserve_sig),
GNUNET_JSON_pack_timestamp ("request_timestamp",
history->request_timestamp),
TALER_JSON_pack_amount ("history_fee",
&history->history_fee))))
{
GNUNET_break (0);
json_decref (json_history);
return NULL;
}
}
break;
}
}

88
src/exchangedb/plugin_exchangedb_postgres.c
View File

@ -6186,8 +6186,56 @@ add_p2p_merge (void *cls,
while (0 < num_results)
{
// FIXME!
GNUNET_break (0);
struct TALER_EXCHANGEDB_PurseMerge *merge;
struct TALER_EXCHANGEDB_ReserveHistory *tail;
merge = GNUNET_new (struct TALER_EXCHANGEDB_PurseMerge);
{
struct GNUNET_PQ_ResultSpec rs[] = {
TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee",
&merge->purse_fee),
TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
&merge->amount_with_fee),
GNUNET_PQ_result_spec_timestamp ("merge_timestamp",
&merge->merge_timestamp),
GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
&merge->h_contract_terms),
GNUNET_PQ_result_spec_auto_from_type ("merge_pub",
&merge->merge_pub),
GNUNET_PQ_result_spec_auto_from_type ("purse_sig",
&merge->purse_sig),
GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
&merge->purse_pub),
GNUNET_PQ_result_spec_auto_from_type ("merge_sig",
&merge->merge_sig),
GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
&merge->reserve_sig),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
--num_results))
{
GNUNET_break (0);
GNUNET_free (merge);
rhc->status = GNUNET_SYSERR;
return;
}
}
GNUNET_assert (0 <=
TALER_amount_add (&rhc->balance_out,
&rhc->balance_out,
&merge->amount_with_fee));
GNUNET_assert (0 <=
TALER_amount_subtract (&rhc->balance_out,
&rhc->balance_out,
&merge->purse_fee));
merge->reserve_pub = *rhc->reserve_pub;
tail = append_rh (rhc);
tail->type = TALER_EXCHANGEDB_RO_PURSE_MERGE;
tail->details.merge = merge;
}
}
@ -6210,8 +6258,40 @@ add_history_requests (void *cls,
while (0 < num_results)
{
// FIXME!
GNUNET_break (0);
struct TALER_EXCHANGEDB_HistoryRequest *history;
struct TALER_EXCHANGEDB_ReserveHistory *tail;
history = GNUNET_new (struct TALER_EXCHANGEDB_HistoryRequest);
{
struct GNUNET_PQ_ResultSpec rs[] = {
TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee",
&history->history_fee),
GNUNET_PQ_result_spec_timestamp ("request_timestamp",
&history->request_timestamp),
GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
&history->reserve_sig),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
--num_results))
{
GNUNET_break (0);
GNUNET_free (history);
rhc->status = GNUNET_SYSERR;
return;
}
}
GNUNET_assert (0 <=
TALER_amount_subtract (&rhc->balance_out,
&rhc->balance_out,
&history->history_fee));
history->reserve_pub = *rhc->reserve_pub;
tail = append_rh (rhc);
tail->type = TALER_EXCHANGEDB_RO_HISTORY_REQUEST;
tail->details.history = history;
}
}

85
src/include/taler_exchange_service.h
View File

@ -1318,7 +1318,17 @@ enum TALER_EXCHANGE_ReserveTransactionType
/**
* Reserve closed operation.
*/
TALER_EXCHANGE_RTT_CLOSE
TALER_EXCHANGE_RTT_CLOSE,
/**
* Reserve history request.
*/
TALER_EXCHANGE_RTT_HISTORY,
/**
* Reserve purese merge operation.
*/
TALER_EXCHANGE_RTT_MERGE
};
@ -1454,6 +1464,79 @@ struct TALER_EXCHANGE_ReserveHistoryEntry
} close_details;
/**
* Information about a history operation of the reserve.
* @e type is #TALER_EXCHANGE_RTT_HISTORY.
*/
struct
{
/**
* Fee paid for the request.
*/
struct TALER_Amount history_fee;
/**
* When was the request made.
*/
struct GNUNET_TIME_Timestamp request_timestamp;
/**
* Signature by the reserve approving the history request.
*/
struct TALER_ReserveSignatureP reserve_sig;
} history_details;
/**
* Information about a merge operation on the reserve.
* @e type is #TALER_EXCHANGE_RTT_MERGE.
*/
struct
{
/**
* Fee paid for the purse.
*/
struct TALER_Amount purse_fee;
/**
* Hash over the contract.
*/
struct TALER_PrivateContractHashP h_contract_terms;
/**
* Merge capability key.
*/
struct TALER_PurseMergePublicKeyP merge_pub;
/**
* Purse signature.
*/
struct TALER_PurseContractSignatureP purse_sig;
/**
* Purse public key.
*/
struct TALER_PurseContractPublicKeyP purse_pub;
/**
* Merge signature.
*/
struct TALER_PurseMergePublicKeyP merge_sig;
/**
* Signature by the reserve approving the merge.
*/
struct TALER_ReserveSignatureP reserve_sig;
/**
* When was the merge made.
*/
struct GNUNET_TIME_Timestamp merge_timestamp;
} merge_details;
} details;
};

11
src/include/taler_exchangedb_plugin.h
View File

@ -983,6 +983,12 @@ struct TALER_EXCHANGEDB_RecoupRefreshListEntry
*/
struct TALER_EXCHANGEDB_PurseMerge
{
/**
* Public key of the reserve the coin was merged into.
*/
struct TALER_ReservePublicKeyP reserve_pub;
/**
* Amount in the purse, with fees.
*/
@ -1036,6 +1042,11 @@ struct TALER_EXCHANGEDB_PurseMerge
*/
struct TALER_EXCHANGEDB_HistoryRequest
{
/**
* Public key of the reserve the history request was for.
*/
struct TALER_ReservePublicKeyP reserve_pub;
/**
* Fee paid for the request.
*/

36
src/lib/exchange_api_common.c
View File

@ -1,6 +1,6 @@
/*
This file is part of TALER
Copyright (C) 2015-2021 Taler Systems SA
Copyright (C) 2015-2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
@ -26,6 +26,8 @@
#include "taler_signatures.h"
// FIXME: refactor, use switching table instead
// of long if-then-else-else-else list!
enum GNUNET_GenericReturnValue
TALER_EXCHANGE_parse_reserve_history (
struct TALER_EXCHANGE_Handle *exchange,
@ -340,6 +342,34 @@ TALER_EXCHANGE_parse_reserve_history (
}
/* end type==CLOSING */
}
else if (0 == strcasecmp (type,
"MERGE"))
{
GNUNET_break (0); // FIXME: implement!
if (0 >
TALER_amount_add (total_in,
total_in,
&rh->amount))
{
/* overflow in history already!? inconceivable! Bad exchange! */
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
}
else if (0 == strcasecmp (type,
"HISTORY"))
{
GNUNET_break (0); // FIXME: implement!
if (0 >
TALER_amount_add (total_out,
total_out,
&amount))
{
/* overflow in history already!? inconceivable! Bad exchange! */
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
}
else
{
/* unexpected 'type', protocol incompatibility, complain! */
@ -369,6 +399,10 @@ TALER_EXCHANGE_free_reserve_history (
break;
case TALER_EXCHANGE_RTT_CLOSE:
break;
case TALER_EXCHANGE_RTT_HISTORY:
break;
case TALER_EXCHANGE_RTT_MERGE:
break;
}
}
GNUNET_free (rhistory);

2
src/lib/exchange_api_reserves_get.c
View File

@ -1,6 +1,6 @@
/*
This file is part of TALER
Copyright (C) 2014-2021 Taler Systems SA
Copyright (C) 2014-2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software