/*
This file is part of TALER
Copyright (C) 2014, 2015, 2016 GNUnet e.V. and Inria
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
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, If not, see
*/
/**
* @file exchange/test_exchange_api.c
* @brief testcase to test exchange's HTTP API interface
* @author Sree Harsha Totakura
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_util.h"
#include "taler_signatures.h"
#include "taler_exchange_service.h"
#include "taler_json_lib.h"
#include
#include
#include "fakebank.h"
/**
* Is the configuration file is set to include wire format 'test'?
*/
#define WIRE_TEST 1
/**
* Is the configuration file is set to include wire format 'sepa'?
*/
#define WIRE_SEPA 1
/**
* Main execution context for the main loop.
*/
static struct GNUNET_CURL_Context *ctx;
/**
* Handle to access the exchange.
*/
static struct TALER_EXCHANGE_Handle *exchange;
/**
* Context for running the CURL event loop.
*/
static struct GNUNET_CURL_RescheduleContext *rc;
/**
* Task run on timeout.
*/
static struct GNUNET_SCHEDULER_Task *timeout_task;
/**
* Handle to our fakebank.
*/
static struct FAKEBANK_Handle *fakebank;
/**
* Result of the testcases, #GNUNET_OK on success
*/
static int result;
/**
* Opcodes for the interpreter.
*/
enum OpCode
{
/**
* Termination code, stops the interpreter loop (with success).
*/
OC_END = 0,
/**
* Add funds to a reserve by (faking) incoming wire transfer.
*/
OC_ADMIN_ADD_INCOMING,
/**
* Check status of a reserve.
*/
OC_WITHDRAW_STATUS,
/**
* Withdraw a coin from a reserve.
*/
OC_WITHDRAW_SIGN,
/**
* Deposit a coin (pay with it).
*/
OC_DEPOSIT,
/**
* Melt a (set of) coins.
*/
OC_REFRESH_MELT,
/**
* Complete melting session by withdrawing melted coins.
*/
OC_REFRESH_REVEAL,
/**
* Verify exchange's /refresh/link by linking original private key to
* results from #OC_REFRESH_REVEAL step.
*/
OC_REFRESH_LINK,
/**
* Verify the exchange's /wire-method.
*/
OC_WIRE,
/**
* Verify exchange's /wire/deposits method.
*/
OC_WIRE_DEPOSITS,
/**
* Verify exchange's /deposit/wtid method.
*/
OC_DEPOSIT_WTID,
/**
* Run the aggregator to execute deposits.
*/
OC_RUN_AGGREGATOR,
/**
* Check that the fakebank has received a certain transaction.
*/
OC_CHECK_BANK_TRANSFER,
/**
* Check that the fakebank has not received any other transactions.
*/
OC_CHECK_BANK_TRANSFERS_EMPTY,
/**
* Refund some deposit.
*/
OC_REFUND
};
/**
* Structure specifying details about a coin to be melted.
* Used in a NULL-terminated array as part of command
* specification.
*/
struct MeltDetails
{
/**
* Amount to melt (including fee).
*/
const char *amount;
/**
* Reference to reserve_withdraw operations for coin to
* be used for the /refresh/melt operation.
*/
const char *coin_ref;
};
/**
* Information about a fresh coin generated by the refresh operation.
*/
struct FreshCoin
{
/**
* If @e amount is NULL, this specifies the denomination key to
* use. Otherwise, this will be set (by the interpreter) to the
* denomination PK matching @e amount.
*/
const struct TALER_EXCHANGE_DenomPublicKey *pk;
/**
* Set (by the interpreter) to the exchange's signature over the
* coin's public key.
*/
struct TALER_DenominationSignature sig;
/**
* Set (by the interpreter) to the coin's private key.
*/
struct TALER_CoinSpendPrivateKeyP coin_priv;
};
/**
* Details for a exchange operation to execute.
*/
struct Command
{
/**
* Opcode of the command.
*/
enum OpCode oc;
/**
* Label for the command, can be NULL.
*/
const char *label;
/**
* Which response code do we expect for this command?
*/
unsigned int expected_response_code;
/**
* Details about the command.
*/
union
{
/**
* Information for a #OC_ADMIN_ADD_INCOMING command.
*/
struct
{
/**
* Label to another admin_add_incoming command if we
* should deposit into an existing reserve, NULL if
* a fresh reserve should be created.
*/
const char *reserve_reference;
/**
* String describing the amount to add to the reserve.
*/
const char *amount;
/**
* Sender account details (JSON).
*/
const char *sender_details;
/**
* Transfer information identifier (JSON).
*/
const char *transfer_details;
/**
* Set (by the interpreter) to the reserve's private key
* we used to fill the reserve.
*/
struct TALER_ReservePrivateKeyP reserve_priv;
/**
* Set to the API's handle during the operation.
*/
struct TALER_EXCHANGE_AdminAddIncomingHandle *aih;
} admin_add_incoming;
/**
* Information for a #OC_WITHDRAW_STATUS command.
*/
struct
{
/**
* Label to the #OC_ADMIN_ADD_INCOMING command which
* created the reserve.
*/
const char *reserve_reference;
/**
* Set to the API's handle during the operation.
*/
struct TALER_EXCHANGE_ReserveStatusHandle *wsh;
/**
* Expected reserve balance.
*/
const char *expected_balance;
} reserve_status;
/**
* Information for a #OC_WITHDRAW_SIGN command.
*/
struct
{
/**
* Which reserve should we withdraw from?
*/
const char *reserve_reference;
/**
* String describing the denomination value we should withdraw.
* A corresponding denomination key must exist in the exchange's
* offerings. Can be NULL if @e pk is set instead.
*/
const char *amount;
/**
* If @e amount is NULL, this specifies the denomination key to
* use. Otherwise, this will be set (by the interpreter) to the
* denomination PK matching @e amount.
*/
const struct TALER_EXCHANGE_DenomPublicKey *pk;
/**
* Set (by the interpreter) to the exchange's signature over the
* coin's public key.
*/
struct TALER_DenominationSignature sig;
/**
* Set (by the interpreter) to the coin's private key.
*/
struct TALER_CoinSpendPrivateKeyP coin_priv;
/**
* Blinding key used for the operation.
*/
struct TALER_DenominationBlindingKeyP blinding_key;
/**
* Withdraw handle (while operation is running).
*/
struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh;
} reserve_withdraw;
/**
* Information for a #OC_DEPOSIT command.
*/
struct
{
/**
* Amount to deposit.
*/
const char *amount;
/**
* Reference to a reserve_withdraw operation for a coin to
* be used for the /deposit operation.
*/
const char *coin_ref;
/**
* If this @e coin_ref refers to an operation that generated
* an array of coins, this value determines which coin to use.
*/
unsigned int coin_idx;
/**
* JSON string describing the merchant's "wire details".
*/
const char *wire_details;
/**
* JSON string describing the contract between the two parties.
*/
const char *contract;
/**
* Transaction ID to use.
*/
uint64_t transaction_id;
/**
* Relative time (to add to 'now') to compute the refund deadline.
* Zero for no refunds.
*/
struct GNUNET_TIME_Relative refund_deadline;
/**
* Set (by the interpreter) to a fresh private key of the merchant,
* if @e refund_deadline is non-zero.
*/
struct TALER_MerchantPrivateKeyP merchant_priv;
/**
* Deposit handle while operation is running.
*/
struct TALER_EXCHANGE_DepositHandle *dh;
} deposit;
/**
* Information for a #OC_REFRESH_MELT command.
*/
struct
{
/**
* Information about coins to be melted.
*/
struct MeltDetails melted_coin;
/**
* Denominations of the fresh coins to withdraw.
*/
const char **fresh_amounts;
/**
* Array of the public keys corresponding to
* the @e fresh_amounts, set by the interpreter.
*/
const struct TALER_EXCHANGE_DenomPublicKey **fresh_pks;
/**
* Melt handle while operation is running.
*/
struct TALER_EXCHANGE_RefreshMeltHandle *rmh;
/**
* Data used in the refresh operation, set by the interpreter.
*/
char *refresh_data;
/**
* Number of bytes in @e refresh_data, set by the interpreter.
*/
size_t refresh_data_length;
/**
* Set by the interpreter (upon completion) to the noreveal
* index selected by the exchange.
*/
uint16_t noreveal_index;
} refresh_melt;
/**
* Information for a #OC_REFRESH_REVEAL command.
*/
struct
{
/**
* Melt operation this is the matching reveal for.
*/
const char *melt_ref;
/**
* Reveal handle while operation is running.
*/
struct TALER_EXCHANGE_RefreshRevealHandle *rrh;
/**
* Number of fresh coins withdrawn, set by the interpreter.
* Length of the @e fresh_coins array.
*/
unsigned int num_fresh_coins;
/**
* Information about coins withdrawn, set by the interpreter.
*/
struct FreshCoin *fresh_coins;
} refresh_reveal;
/**
* Information for a #OC_REFRESH_LINK command.
*/
struct
{
/**
* Reveal operation this is the matching link for.
*/
const char *reveal_ref;
/**
* Link handle while operation is running.
*/
struct TALER_EXCHANGE_RefreshLinkHandle *rlh;
/**
* Which of the melted coins should be used for the linkage?
*/
unsigned int coin_idx;
} refresh_link;
/**
* Information for the /wire command.
*/
struct {
/**
* Handle to the wire request.
*/
struct TALER_EXCHANGE_WireHandle *wh;
/**
* Format we expect to see, others will be *ignored*.
*/
const char *format;
} wire;
/**
* Information for the /wire/deposits's command.
*/
struct {
/**
* Handle to the wire deposits request.
*/
struct TALER_EXCHANGE_WireDepositsHandle *wdh;
/**
* Reference to a command providing a WTID. If set, we use the
* WTID from that command. The command can be either an
* #OC_DEPOSIT_WTID or an #OC_CHECK_BANK_TRANSFER. In the
* case of the bank transfer, we check that the total amount
* claimed by the exchange matches the total amount transferred
* by the bank. In the case of a /deposit/wtid, we check
* that the wire details match.
*/
const char *wtid_ref;
/**
* WTID to use (used if @e wtid_ref is NULL).
*/
struct TALER_WireTransferIdentifierRawP wtid;
/**
* What is the expected total amount? Only used if
* @e expected_response_code was #MHD_HTTP_OK.
*/
const char *total_amount_expected;
/* TODO: may want to add list of deposits we expected
to see aggregated here in the future. */
} wire_deposits;
/**
* Information for the /deposit/wtid command.
*/
struct {
/**
* Handle to the deposit wtid request.
*/
struct TALER_EXCHANGE_DepositWtidHandle *dwh;
/**
* Which /deposit operation should we obtain WTID data for?
*/
const char *deposit_ref;
/**
* Which #OC_CHECK_BANK_TRANSFER wtid should this match? NULL for none.
*/
const char *bank_transfer_ref;
/**
* Wire transfer identifier, set if #MHD_HTTP_OK was the response code.
*/
struct TALER_WireTransferIdentifierRawP wtid;
} deposit_wtid;
struct {
/**
* Process for the aggregator.
*/
struct GNUNET_OS_Process *aggregator_proc;
} run_aggregator;
struct {
/**
* Which amount do we expect to see transferred?
*/
const char *amount;
/**
* Which account do we expect to be debited?
*/
uint64_t account_debit;
/**
* Which account do we expect to be credited?
*/
uint64_t account_credit;
/**
* Set (!) to the wire transfer identifier observed.
*/
struct TALER_WireTransferIdentifierRawP wtid;
} check_bank_transfer;
struct {
/**
* Amount that should be refunded.
*/
const char *amount;
/**
* Expected refund fee.
*/
const char *fee;
/**
* Reference to the corresponding deposit operation.
* Used to obtain contract details, merchant keys,
* fee structure, etc.
*/
const char *deposit_ref;
/**
* Refund transaction identifier.
*/
uint64_t rtransaction_id;
/**
* Handle to the refund operation (while it is ongoing).
*/
struct TALER_EXCHANGE_RefundHandle *rh;
} refund;
} details;
};
/**
* State of the interpreter loop.
*/
struct InterpreterState
{
/**
* Keys from the exchange.
*/
const struct TALER_EXCHANGE_Keys *keys;
/**
* Commands the interpreter will run.
*/
struct Command *commands;
/**
* Interpreter task (if one is scheduled).
*/
struct GNUNET_SCHEDULER_Task *task;
/**
* Instruction pointer. Tells #interpreter_run() which
* instruction to run next.
*/
unsigned int ip;
};
/**
* Pipe used to communicate child death via signal.
*/
static struct GNUNET_DISK_PipeHandle *sigpipe;
/**
* ID of task called whenever we get a SIGCHILD.
*/
static struct GNUNET_SCHEDULER_Task *child_death_task;
/**
* The testcase failed, return with an error code.
*
* @param is interpreter state to clean up
*/
static void
fail (struct InterpreterState *is)
{
result = GNUNET_SYSERR;
GNUNET_SCHEDULER_shutdown ();
}
/**
* Find a command by label.
*
* @param is interpreter state to search
* @param label label to look for
* @return NULL if command was not found
*/
static const struct Command *
find_command (const struct InterpreterState *is,
const char *label)
{
unsigned int i;
const struct Command *cmd;
if (NULL == label)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Attempt to lookup command for empty label\n");
return NULL;
}
for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
if ( (NULL != cmd->label) &&
(0 == strcmp (cmd->label,
label)) )
return cmd;
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command not found: %s\n",
label);
return NULL;
}
/**
* Run the main interpreter loop that performs exchange operations.
*
* @param cls contains the `struct InterpreterState`
*/
static void
interpreter_run (void *cls);
/**
* Run the next command with the interpreter.
*
* @param is current interpeter state.
*/
static void
next_command (struct InterpreterState *is)
{
is->ip++;
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
is);
}
/**
* Function called upon completion of our /admin/add/incoming request.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param full_response full response from the exchange (for logging, in case of errors)
*/
static void
add_incoming_cb (void *cls,
unsigned int http_status,
const json_t *full_response)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.admin_add_incoming.aih = NULL;
if (MHD_HTTP_OK != http_status)
{
GNUNET_break (0);
fail (is);
return;
}
next_command (is);
}
/**
* Check if the given historic event @a h corresponds to the given
* command @a cmd.
*
* @param h event in history
* @param cmd an #OC_ADMIN_ADD_INCOMING command
* @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
*/
static int
compare_admin_add_incoming_history (const struct TALER_EXCHANGE_ReserveHistory *h,
const struct Command *cmd)
{
struct TALER_Amount amount;
if (TALER_EXCHANGE_RTT_DEPOSIT != h->type)
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
GNUNET_assert (GNUNET_OK ==
TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
&amount));
if (0 != TALER_amount_cmp (&amount,
&h->amount))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
return GNUNET_OK;
}
/**
* Check if the given historic event @a h corresponds to the given
* command @a cmd.
*
* @param h event in history
* @param cmd an #OC_WITHDRAW_SIGN command
* @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
*/
static int
compare_reserve_withdraw_history (const struct TALER_EXCHANGE_ReserveHistory *h,
const struct Command *cmd)
{
struct TALER_Amount amount;
struct TALER_Amount amount_with_fee;
if (TALER_EXCHANGE_RTT_WITHDRAWAL != h->type)
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
GNUNET_assert (GNUNET_OK ==
TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
&amount));
GNUNET_assert (GNUNET_OK ==
TALER_amount_add (&amount_with_fee,
&amount,
&cmd->details.reserve_withdraw.pk->fee_withdraw));
if (0 != TALER_amount_cmp (&amount_with_fee,
&h->amount))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
return GNUNET_OK;
}
/**
* Function called with the result of a /reserve/status request.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param[in] json original response in JSON format (useful only for diagnostics)
* @param balance current balance in the reserve, NULL on error
* @param history_length number of entries in the transaction history, 0 on error
* @param history detailed transaction history, NULL on error
*/
static void
reserve_status_cb (void *cls,
unsigned int http_status,
const json_t *json,
const struct TALER_Amount *balance,
unsigned int history_length,
const struct TALER_EXCHANGE_ReserveHistory *history)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
struct Command *rel;
unsigned int i;
unsigned int j;
struct TALER_Amount amount;
cmd->details.reserve_status.wsh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
GNUNET_break (0);
json_dumpf (json, stderr, 0);
fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
/* FIXME: note that history events may come in a different
order than the commands. However, for now this works... */
j = 0;
for (i=0;iip;i++)
{
switch ((rel = &is->commands[i])->oc)
{
case OC_ADMIN_ADD_INCOMING:
if ( ( (NULL != rel->label) &&
(0 == strcmp (cmd->details.reserve_status.reserve_reference,
rel->label) ) ) ||
( (NULL != rel->details.admin_add_incoming.reserve_reference) &&
(0 == strcmp (cmd->details.reserve_status.reserve_reference,
rel->details.admin_add_incoming.reserve_reference) ) ) )
{
if (GNUNET_OK !=
compare_admin_add_incoming_history (&history[j],
rel))
{
GNUNET_break (0);
fail (is);
return;
}
j++;
}
break;
case OC_WITHDRAW_SIGN:
if (0 == strcmp (cmd->details.reserve_status.reserve_reference,
rel->details.reserve_withdraw.reserve_reference))
{
if (GNUNET_OK !=
compare_reserve_withdraw_history (&history[j],
rel))
{
GNUNET_break (0);
fail (is);
return;
}
j++;
}
break;
default:
/* unreleated, just skip */
break;
}
}
if (j != history_length)
{
GNUNET_break (0);
fail (is);
return;
}
if (NULL != cmd->details.reserve_status.expected_balance)
{
GNUNET_assert (GNUNET_OK ==
TALER_string_to_amount (cmd->details.reserve_status.expected_balance,
&amount));
if (0 != TALER_amount_cmp (&amount,
balance))
{
GNUNET_break (0);
fail (is);
return;
}
}
break;
default:
/* Unsupported status code (by test harness) */
GNUNET_break (0);
break;
}
next_command (is);
}
/**
* Function called upon completion of our /reserve/withdraw request.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param sig signature over the coin, NULL on error
* @param full_response full response from the exchange (for logging, in case of errors)
*/
static void
reserve_withdraw_cb (void *cls,
unsigned int http_status,
const struct TALER_DenominationSignature *sig,
const json_t *full_response)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.reserve_withdraw.wsh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (full_response, stderr, 0);
GNUNET_break (0);
fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
if (NULL == sig)
{
GNUNET_break (0);
fail (is);
return;
}
cmd->details.reserve_withdraw.sig.rsa_signature
= GNUNET_CRYPTO_rsa_signature_dup (sig->rsa_signature);
break;
case MHD_HTTP_PAYMENT_REQUIRED:
/* nothing to check */
break;
default:
/* Unsupported status code (by test harness) */
GNUNET_break (0);
break;
}
next_command (is);
}
/**
* Function called with the result of a /deposit operation.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param exchange_pub public key the exchange used for signing
* @param obj the received JSON reply, should be kept as proof (and, in case of errors,
* be forwarded to the customer)
*/
static void
deposit_cb (void *cls,
unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *obj)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.deposit.dh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (obj, stderr, 0);
fail (is);
return;
}
next_command (is);
}
/**
* Function called with the result of the /refresh/melt operation.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, never #MHD_HTTP_OK (200) as for successful intermediate response this callback is skipped.
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param noreveal_index choice by the exchange in the cut-and-choose protocol,
* UINT16_MAX on error
* @param exchange_pub public key the exchange used for signing
* @param full_response full response from the exchange (for logging, in case of errors)
*/
static void
melt_cb (void *cls,
unsigned int http_status,
uint16_t noreveal_index,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *full_response)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.refresh_melt.rmh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (full_response, stderr, 0);
fail (is);
return;
}
cmd->details.refresh_melt.noreveal_index = noreveal_index;
next_command (is);
}
/**
* Function called with the result of the /refresh/reveal operation.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
* @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
* @param sigs array of signature over @a num_coins coins, NULL on error
* @param full_response full response from the exchange (for logging, in case of errors)
*/
static void
reveal_cb (void *cls,
unsigned int http_status,
unsigned int num_coins,
const struct TALER_CoinSpendPrivateKeyP *coin_privs,
const struct TALER_DenominationSignature *sigs,
const json_t *full_response)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
const struct Command *ref;
unsigned int i;
cmd->details.refresh_reveal.rrh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (full_response, stderr, 0);
fail (is);
return;
}
ref = find_command (is,
cmd->details.refresh_reveal.melt_ref);
GNUNET_assert (NULL != ref);
cmd->details.refresh_reveal.num_fresh_coins = num_coins;
switch (http_status)
{
case MHD_HTTP_OK:
cmd->details.refresh_reveal.fresh_coins
= GNUNET_new_array (num_coins,
struct FreshCoin);
for (i=0;idetails.refresh_reveal.fresh_coins[i];
fc->pk = ref->details.refresh_melt.fresh_pks[i];
fc->coin_priv = coin_privs[i];
fc->sig.rsa_signature
= GNUNET_CRYPTO_rsa_signature_dup (sigs[i].rsa_signature);
}
break;
default:
break;
}
next_command (is);
}
/**
* Function called with the result of a /refresh/link operation.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
* @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
* @param sigs array of signature over @a num_coins coins, NULL on error
* @param pubs array of public keys for the @a sigs, NULL on error
* @param full_response full response from the exchange (for logging, in case of errors)
*/
static void
link_cb (void *cls,
unsigned int http_status,
unsigned int num_coins,
const struct TALER_CoinSpendPrivateKeyP *coin_privs,
const struct TALER_DenominationSignature *sigs,
const struct TALER_DenominationPublicKey *pubs,
const json_t *full_response)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
const struct Command *ref;
unsigned int i;
unsigned int j;
unsigned int found;
cmd->details.refresh_link.rlh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (full_response, stderr, 0);
fail (is);
return;
}
ref = find_command (is,
cmd->details.refresh_link.reveal_ref);
GNUNET_assert (NULL != ref);
switch (http_status)
{
case MHD_HTTP_OK:
/* check that number of coins returned matches */
if (num_coins != ref->details.refresh_reveal.num_fresh_coins)
{
GNUNET_break (0);
fail (is);
return;
}
/* check that the coins match */
for (i=0;idetails.refresh_reveal.fresh_coins[j];
if ( (0 == memcmp (&coin_privs[i],
&fc->coin_priv,
sizeof (struct TALER_CoinSpendPrivateKeyP))) &&
(0 == GNUNET_CRYPTO_rsa_signature_cmp (fc->sig.rsa_signature,
sigs[i].rsa_signature)) &&
(0 == GNUNET_CRYPTO_rsa_public_key_cmp (fc->pk->key.rsa_public_key,
pubs[i].rsa_public_key)) )
{
found++;
break;
}
}
if (found != num_coins)
{
fprintf (stderr,
"Only %u/%u coins match expectations\n",
found,
num_coins);
GNUNET_break (0);
fail (is);
return;
}
break;
default:
break;
}
next_command (is);
}
/**
* Task triggered whenever we receive a SIGCHLD (child
* process died).
*
* @param cls closure, NULL if we need to self-restart
*/
static void
maint_child_death (void *cls)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
const struct GNUNET_DISK_FileHandle *pr;
char c[16];
child_death_task = NULL;
pr = GNUNET_DISK_pipe_handle (sigpipe, GNUNET_DISK_PIPE_END_READ);
GNUNET_break (0 < GNUNET_DISK_file_read (pr, &c, sizeof (c)));
GNUNET_OS_process_wait (cmd->details.run_aggregator.aggregator_proc);
GNUNET_OS_process_destroy (cmd->details.run_aggregator.aggregator_proc);
cmd->details.run_aggregator.aggregator_proc = NULL;
next_command (is);
}
/**
* Find denomination key matching the given amount.
*
* @param keys array of keys to search
* @param amount coin value to look for
* @return NULL if no matching key was found
*/
static const struct TALER_EXCHANGE_DenomPublicKey *
find_pk (const struct TALER_EXCHANGE_Keys *keys,
const struct TALER_Amount *amount)
{
unsigned int i;
struct GNUNET_TIME_Absolute now;
struct TALER_EXCHANGE_DenomPublicKey *pk;
char *str;
now = GNUNET_TIME_absolute_get ();
for (i=0;inum_denom_keys;i++)
{
pk = &keys->denom_keys[i];
if ( (0 == TALER_amount_cmp (amount,
&pk->value)) &&
(now.abs_value_us >= pk->valid_from.abs_value_us) &&
(now.abs_value_us < pk->withdraw_valid_until.abs_value_us) )
return pk;
}
/* do 2nd pass to check if expiration times are to blame for failure */
str = TALER_amount_to_string (amount);
for (i=0;inum_denom_keys;i++)
{
pk = &keys->denom_keys[i];
if ( (0 == TALER_amount_cmp (amount,
&pk->value)) &&
( (now.abs_value_us < pk->valid_from.abs_value_us) ||
(now.abs_value_us > pk->withdraw_valid_until.abs_value_us) ) )
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Have denomination key for `%s', but with wrong expiration range %llu vs [%llu,%llu)\n",
str,
(unsigned long long) now.abs_value_us,
(unsigned long long) pk->valid_from.abs_value_us,
(unsigned long long) pk->withdraw_valid_until.abs_value_us);
GNUNET_free (str);
return NULL;
}
}
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"No denomination key for amount %s found\n",
str);
GNUNET_free (str);
return NULL;
}
/**
* Callbacks called with the result(s) of a
* wire format inquiry request to the exchange.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful request;
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param obj the received JSON reply, if successful this should be the wire
* format details as provided by /wire.
*/
static void
wire_cb (void *cls,
unsigned int http_status,
const json_t *obj)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.wire.wh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (obj, stderr, 0);
fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
{
json_t *method;
method = json_object_get (obj,
cmd->details.wire.format);
if (NULL == method)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Expected method `%s' not included in response to command %s\n",
cmd->details.wire.format,
cmd->label);
json_dumpf (obj, stderr, 0);
fail (is);
return;
}
}
break;
default:
break;
}
next_command (is);
}
/**
* Function called with detailed wire transfer data, including all
* of the coin transactions that were combined into the wire transfer.
*
* @param cls closure
* @param http_status HTTP status code we got, 0 on exchange protocol violation
* @param exchange_pub public key the exchange used for signing
* @param json original json reply (may include signatures, those have then been
* validated already)
* @param wtid extracted wire transfer identifier, or NULL if the exchange could
* not provide any (set only if @a http_status is #MHD_HTTP_OK)
* @param total_amount total amount of the wire transfer, or NULL if the exchange could
* not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
* @param details_length length of the @a details array
* @param details array with details about the combined transactions
*/
static void
wire_deposits_cb (void *cls,
unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *json,
const struct GNUNET_HashCode *h_wire,
const struct TALER_Amount *total_amount,
unsigned int details_length,
const struct TALER_WireDepositDetails *details)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
const struct Command *ref;
struct TALER_Amount expected_amount;
cmd->details.wire_deposits.wdh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (json, stderr, 0);
fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.wire_deposits.total_amount_expected,
&expected_amount))
{
GNUNET_break (0);
fail (is);
return;
}
if (0 != TALER_amount_cmp (total_amount,
&expected_amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Total amount missmatch to command %s\n",
cmd->label);
json_dumpf (json, stderr, 0);
fail (is);
return;
}
ref = find_command (is,
cmd->details.wire_deposits.wtid_ref);
GNUNET_assert (NULL != ref);
switch (ref->oc)
{
case OC_DEPOSIT_WTID:
if (NULL != ref->details.deposit_wtid.deposit_ref)
{
const struct Command *dep;
struct GNUNET_HashCode hw;
json_t *wire;
dep = find_command (is,
ref->details.deposit_wtid.deposit_ref);
GNUNET_assert (NULL != dep);
wire = json_loads (dep->details.deposit.wire_details,
JSON_REJECT_DUPLICATES,
NULL);
TALER_JSON_hash (wire,
&hw);
json_decref (wire);
if (0 != memcmp (&hw,
h_wire,
sizeof (struct GNUNET_HashCode)))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Wire hash missmatch to command %s\n",
cmd->label);
json_dumpf (json, stderr, 0);
fail (is);
return;
}
}
break;
case OC_CHECK_BANK_TRANSFER:
if (GNUNET_OK !=
TALER_string_to_amount (ref->details.check_bank_transfer.amount,
&expected_amount))
{
GNUNET_break (0);
fail (is);
return;
}
if (0 != TALER_amount_cmp (total_amount,
&expected_amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Total amount missmatch to command %s\n",
cmd->label);
json_dumpf (json, stderr, 0);
fail (is);
return;
}
break;
default:
GNUNET_break (0);
fail (is);
return;
}
break;
default:
break;
}
next_command (is);
}
/**
* Function called with detailed wire transfer data.
*
* @param cls closure
* @param http_status HTTP status code we got, 0 on exchange protocol violation
* @param exchange_pub public key the exchange used for signing
* @param json original json reply (may include signatures, those have then been
* validated already)
* @param wtid wire transfer identifier used by the exchange, NULL if exchange did not
* yet execute the transaction
* @param execution_time actual or planned execution time for the wire transfer
* @param coin_contribution contribution to the @a total_amount of the deposited coin (may be NULL)
* @param total_amount total amount of the wire transfer, or NULL if the exchange could
* not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
*/
static void
deposit_wtid_cb (void *cls,
unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *json,
const struct TALER_WireTransferIdentifierRawP *wtid,
struct GNUNET_TIME_Absolute execution_time,
const struct TALER_Amount *coin_contribution)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.deposit_wtid.dwh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (json, stderr, 0);
fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
cmd->details.deposit_wtid.wtid = *wtid;
if (NULL != cmd->details.deposit_wtid.bank_transfer_ref)
{
const struct Command *ref;
ref = find_command (is,
cmd->details.deposit_wtid.bank_transfer_ref);
GNUNET_assert (NULL != ref);
if (0 != memcmp (wtid,
&ref->details.check_bank_transfer.wtid,
sizeof (struct TALER_WireTransferIdentifierRawP)))
{
GNUNET_break (0);
fail (is);
return;
}
}
break;
default:
break;
}
next_command (is);
}
/**
* Check the result for the refund request.
*
* @param cls closure
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param exchange_pub public key the exchange used for signing @a obj
* @param obj the received JSON reply, should be kept as proof (and, in particular,
* be forwarded to the customer)
*/
static void
refund_cb (void *cls,
unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *obj)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.refund.rh = NULL;
if (cmd->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s\n",
http_status,
cmd->label);
json_dumpf (obj, stderr, 0);
fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
break;
default:
break;
}
next_command (is);
}
/**
* Given a command that is used to withdraw coins,
* extract the corresponding public key of the coin.
*
* @param coin command relating to coin withdrawal or refresh
* @param idx index to use if we got multiple coins from the @a coin command
* @param[out] coin_pub where to store the public key of the coin
*/
static void
get_public_key_from_coin_command (const struct Command *coin,
unsigned int idx,
struct TALER_CoinSpendPublicKeyP *coin_pub)
{
switch (coin->oc)
{
case OC_WITHDRAW_SIGN:
GNUNET_CRYPTO_eddsa_key_get_public (&coin->details.reserve_withdraw.coin_priv.eddsa_priv,
&coin_pub->eddsa_pub);
break;
case OC_REFRESH_REVEAL:
{
const struct FreshCoin *fc;
GNUNET_assert (idx < coin->details.refresh_reveal.num_fresh_coins);
fc = &coin->details.refresh_reveal.fresh_coins[idx];
GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
&coin_pub->eddsa_pub);
}
break;
default:
GNUNET_assert (0);
}
}
/**
* Run the main interpreter loop that performs exchange operations.
*
* @param cls contains the `struct InterpreterState`
*/
static void
interpreter_run (void *cls)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
const struct Command *ref;
struct TALER_ReservePublicKeyP reserve_pub;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct TALER_Amount amount;
struct GNUNET_TIME_Absolute execution_date;
json_t *sender_details;
json_t *transfer_details;
const struct GNUNET_SCHEDULER_TaskContext *tc;
is->task = NULL;
tc = GNUNET_SCHEDULER_get_task_context ();
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
{
fprintf (stderr,
"Test aborted by shutdown request\n");
fail (is);
return;
}
switch (cmd->oc)
{
case OC_END:
result = GNUNET_OK;
GNUNET_SCHEDULER_shutdown ();
return;
case OC_ADMIN_ADD_INCOMING:
if (NULL !=
cmd->details.admin_add_incoming.reserve_reference)
{
ref = find_command (is,
cmd->details.admin_add_incoming.reserve_reference);
GNUNET_assert (NULL != ref);
GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
cmd->details.admin_add_incoming.reserve_priv
= ref->details.admin_add_incoming.reserve_priv;
}
else
{
struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
priv = GNUNET_CRYPTO_eddsa_key_create ();
cmd->details.admin_add_incoming.reserve_priv.eddsa_priv = *priv;
GNUNET_free (priv);
}
GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.admin_add_incoming.reserve_priv.eddsa_priv,
&reserve_pub.eddsa_pub);
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.admin_add_incoming.amount,
is->ip);
fail (is);
return;
}
sender_details = json_loads (cmd->details.admin_add_incoming.sender_details,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == sender_details)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse sender details `%s' at %u\n",
cmd->details.admin_add_incoming.sender_details,
is->ip);
fail (is);
return;
}
transfer_details = json_loads (cmd->details.admin_add_incoming.transfer_details,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == transfer_details)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse transfer details `%s' at %u\n",
cmd->details.admin_add_incoming.transfer_details,
is->ip);
fail (is);
return;
}
execution_date = GNUNET_TIME_absolute_get ();
GNUNET_TIME_round_abs (&execution_date);
cmd->details.admin_add_incoming.aih
= TALER_EXCHANGE_admin_add_incoming (exchange,
&reserve_pub,
&amount,
execution_date,
sender_details,
transfer_details,
&add_incoming_cb,
is);
json_decref (sender_details);
json_decref (transfer_details);
if (NULL == cmd->details.admin_add_incoming.aih)
{
GNUNET_break (0);
fail (is);
return;
}
return;
case OC_WITHDRAW_STATUS:
GNUNET_assert (NULL !=
cmd->details.reserve_status.reserve_reference);
ref = find_command (is,
cmd->details.reserve_status.reserve_reference);
GNUNET_assert (NULL != ref);
GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
GNUNET_CRYPTO_eddsa_key_get_public (&ref->details.admin_add_incoming.reserve_priv.eddsa_priv,
&reserve_pub.eddsa_pub);
cmd->details.reserve_status.wsh
= TALER_EXCHANGE_reserve_status (exchange,
&reserve_pub,
&reserve_status_cb,
is);
return;
case OC_WITHDRAW_SIGN:
GNUNET_assert (NULL !=
cmd->details.reserve_withdraw.reserve_reference);
ref = find_command (is,
cmd->details.reserve_withdraw.reserve_reference);
GNUNET_assert (NULL != ref);
GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
if (NULL != cmd->details.reserve_withdraw.amount)
{
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.reserve_withdraw.amount,
is->ip);
fail (is);
return;
}
cmd->details.reserve_withdraw.pk = find_pk (is->keys,
&amount);
}
if (NULL == cmd->details.reserve_withdraw.pk)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to determine denomination key at %u\n",
is->ip);
fail (is);
return;
}
/* create coin's private key */
{
struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
priv = GNUNET_CRYPTO_eddsa_key_create ();
cmd->details.reserve_withdraw.coin_priv.eddsa_priv = *priv;
GNUNET_free (priv);
}
GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.reserve_withdraw.coin_priv.eddsa_priv,
&coin_pub.eddsa_pub);
GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
&cmd->details.reserve_withdraw.blinding_key,
sizeof (cmd->details.reserve_withdraw.blinding_key));
cmd->details.reserve_withdraw.wsh
= TALER_EXCHANGE_reserve_withdraw (exchange,
cmd->details.reserve_withdraw.pk,
&ref->details.admin_add_incoming.reserve_priv,
&cmd->details.reserve_withdraw.coin_priv,
&cmd->details.reserve_withdraw.blinding_key,
&reserve_withdraw_cb,
is);
if (NULL == cmd->details.reserve_withdraw.wsh)
{
GNUNET_break (0);
fail (is);
return;
}
return;
case OC_DEPOSIT:
{
struct GNUNET_HashCode h_contract;
const struct TALER_CoinSpendPrivateKeyP *coin_priv;
const struct TALER_EXCHANGE_DenomPublicKey *coin_pk;
const struct TALER_DenominationSignature *coin_pk_sig;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct TALER_CoinSpendSignatureP coin_sig;
struct GNUNET_TIME_Absolute refund_deadline;
struct GNUNET_TIME_Absolute wire_deadline;
struct GNUNET_TIME_Absolute timestamp;
struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
struct TALER_MerchantPublicKeyP merchant_pub;
json_t *contract;
json_t *wire;
GNUNET_assert (NULL !=
cmd->details.deposit.coin_ref);
ref = find_command (is,
cmd->details.deposit.coin_ref);
GNUNET_assert (NULL != ref);
switch (ref->oc)
{
case OC_WITHDRAW_SIGN:
coin_priv = &ref->details.reserve_withdraw.coin_priv;
coin_pk = ref->details.reserve_withdraw.pk;
coin_pk_sig = &ref->details.reserve_withdraw.sig;
break;
case OC_REFRESH_REVEAL:
{
const struct FreshCoin *fc;
unsigned int idx;
idx = cmd->details.deposit.coin_idx;
GNUNET_assert (idx < ref->details.refresh_reveal.num_fresh_coins);
fc = &ref->details.refresh_reveal.fresh_coins[idx];
coin_priv = &fc->coin_priv;
coin_pk = fc->pk;
coin_pk_sig = &fc->sig;
}
break;
default:
GNUNET_assert (0);
}
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.deposit.amount,
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.deposit.amount,
is->ip);
fail (is);
return;
}
contract = json_loads (cmd->details.deposit.contract,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == contract)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse contract details `%s' at %u/%s\n",
cmd->details.deposit.contract,
is->ip,
cmd->label);
fail (is);
return;
}
TALER_JSON_hash (contract,
&h_contract);
wire = json_loads (cmd->details.deposit.wire_details,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == wire)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse wire details `%s' at %u/%s\n",
cmd->details.deposit.wire_details,
is->ip,
cmd->label);
fail (is);
return;
}
GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
&coin_pub.eddsa_pub);
priv = GNUNET_CRYPTO_eddsa_key_create ();
cmd->details.deposit.merchant_priv.eddsa_priv = *priv;
GNUNET_free (priv);
if (0 != cmd->details.deposit.refund_deadline.rel_value_us)
{
refund_deadline = GNUNET_TIME_relative_to_absolute (cmd->details.deposit.refund_deadline);
wire_deadline = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_relative_multiply (cmd->details.deposit.refund_deadline, 2));
}
else
{
refund_deadline = GNUNET_TIME_UNIT_ZERO_ABS;
wire_deadline = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_ZERO);
}
GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.deposit.merchant_priv.eddsa_priv,
&merchant_pub.eddsa_pub);
timestamp = GNUNET_TIME_absolute_get ();
GNUNET_TIME_round_abs (×tamp);
GNUNET_TIME_round_abs (&refund_deadline);
GNUNET_TIME_round_abs (&wire_deadline);
{
struct TALER_DepositRequestPS dr;
memset (&dr, 0, sizeof (dr));
dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
dr.h_contract = h_contract;
TALER_JSON_hash (wire,
&dr.h_wire);
dr.timestamp = GNUNET_TIME_absolute_hton (timestamp);
dr.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
dr.transaction_id = GNUNET_htonll (cmd->details.deposit.transaction_id);
TALER_amount_hton (&dr.amount_with_fee,
&amount);
TALER_amount_hton (&dr.deposit_fee,
&coin_pk->fee_deposit);
dr.merchant = merchant_pub;
dr.coin_pub = coin_pub;
GNUNET_assert (GNUNET_OK ==
GNUNET_CRYPTO_eddsa_sign (&coin_priv->eddsa_priv,
&dr.purpose,
&coin_sig.eddsa_signature));
}
cmd->details.deposit.dh
= TALER_EXCHANGE_deposit (exchange,
&amount,
wire_deadline,
wire,
&h_contract,
&coin_pub,
coin_pk_sig,
&coin_pk->key,
timestamp,
cmd->details.deposit.transaction_id,
&merchant_pub,
refund_deadline,
&coin_sig,
&deposit_cb,
is);
if (NULL == cmd->details.deposit.dh)
{
GNUNET_break (0);
json_decref (wire);
fail (is);
return;
}
json_decref (wire);
return;
}
case OC_REFRESH_MELT:
{
unsigned int num_fresh_coins;
cmd->details.refresh_melt.noreveal_index = UINT16_MAX;
for (num_fresh_coins=0;
NULL != cmd->details.refresh_melt.fresh_amounts[num_fresh_coins];
num_fresh_coins++) ;
cmd->details.refresh_melt.fresh_pks
= GNUNET_new_array (num_fresh_coins,
const struct TALER_EXCHANGE_DenomPublicKey *);
{
struct TALER_CoinSpendPrivateKeyP melt_priv;
struct TALER_Amount melt_amount;
struct TALER_DenominationSignature melt_sig;
struct TALER_EXCHANGE_DenomPublicKey melt_pk;
struct TALER_EXCHANGE_DenomPublicKey fresh_pks[num_fresh_coins];
unsigned int i;
const struct MeltDetails *md = &cmd->details.refresh_melt.melted_coin;
ref = find_command (is,
md->coin_ref);
GNUNET_assert (NULL != ref);
GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
melt_priv = ref->details.reserve_withdraw.coin_priv;
if (GNUNET_OK !=
TALER_string_to_amount (md->amount,
&melt_amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
md->amount,
is->ip);
fail (is);
return;
}
melt_sig = ref->details.reserve_withdraw.sig;
melt_pk = *ref->details.reserve_withdraw.pk;
for (i=0;idetails.refresh_melt.fresh_amounts[i],
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.reserve_withdraw.amount,
is->ip);
fail (is);
return;
}
cmd->details.refresh_melt.fresh_pks[i]
= find_pk (is->keys,
&amount);
fresh_pks[i] = *cmd->details.refresh_melt.fresh_pks[i];
}
cmd->details.refresh_melt.refresh_data
= TALER_EXCHANGE_refresh_prepare (&melt_priv,
&melt_amount,
&melt_sig,
&melt_pk,
GNUNET_YES,
num_fresh_coins,
fresh_pks,
&cmd->details.refresh_melt.refresh_data_length);
if (NULL == cmd->details.refresh_melt.refresh_data)
{
GNUNET_break (0);
fail (is);
return;
}
cmd->details.refresh_melt.rmh
= TALER_EXCHANGE_refresh_melt (exchange,
cmd->details.refresh_melt.refresh_data_length,
cmd->details.refresh_melt.refresh_data,
&melt_cb,
is);
if (NULL == cmd->details.refresh_melt.rmh)
{
GNUNET_break (0);
fail (is);
return;
}
}
}
return;
case OC_REFRESH_REVEAL:
ref = find_command (is,
cmd->details.refresh_reveal.melt_ref);
GNUNET_assert (NULL != ref);
cmd->details.refresh_reveal.rrh
= TALER_EXCHANGE_refresh_reveal (exchange,
ref->details.refresh_melt.refresh_data_length,
ref->details.refresh_melt.refresh_data,
ref->details.refresh_melt.noreveal_index,
&reveal_cb,
is);
if (NULL == cmd->details.refresh_reveal.rrh)
{
GNUNET_break (0);
fail (is);
return;
}
return;
case OC_REFRESH_LINK:
/* find reveal command */
ref = find_command (is,
cmd->details.refresh_link.reveal_ref);
GNUNET_assert (NULL != ref);
/* find melt command */
ref = find_command (is,
ref->details.refresh_reveal.melt_ref);
GNUNET_assert (NULL != ref);
/* find reserve_withdraw command */
{
const struct MeltDetails *md;
md = &ref->details.refresh_melt.melted_coin;
ref = find_command (is,
md->coin_ref);
GNUNET_assert (NULL != ref);
}
GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
/* finally, use private key from withdraw sign command */
cmd->details.refresh_link.rlh
= TALER_EXCHANGE_refresh_link (exchange,
&ref->details.reserve_withdraw.coin_priv,
&link_cb,
is);
if (NULL == cmd->details.refresh_link.rlh)
{
GNUNET_break (0);
fail (is);
return;
}
return;
case OC_WIRE:
cmd->details.wire.wh = TALER_EXCHANGE_wire (exchange,
&wire_cb,
is);
return;
case OC_WIRE_DEPOSITS:
if (NULL != cmd->details.wire_deposits.wtid_ref)
{
ref = find_command (is,
cmd->details.wire_deposits.wtid_ref);
GNUNET_assert (NULL != ref);
switch (ref->oc)
{
case OC_DEPOSIT_WTID:
cmd->details.wire_deposits.wtid = ref->details.deposit_wtid.wtid;
break;
case OC_CHECK_BANK_TRANSFER:
cmd->details.wire_deposits.wtid = ref->details.check_bank_transfer.wtid;
break;
default:
GNUNET_break (0);
fail (is);
return;
}
}
cmd->details.wire_deposits.wdh
= TALER_EXCHANGE_wire_deposits (exchange,
&cmd->details.wire_deposits.wtid,
&wire_deposits_cb,
is);
return;
case OC_DEPOSIT_WTID:
{
struct GNUNET_HashCode h_wire;
struct GNUNET_HashCode h_contract;
json_t *wire;
json_t *contract;
const struct Command *coin;
struct TALER_CoinSpendPublicKeyP coin_pub;
ref = find_command (is,
cmd->details.deposit_wtid.deposit_ref);
GNUNET_assert (NULL != ref);
coin = find_command (is,
ref->details.deposit.coin_ref);
GNUNET_assert (NULL != coin);
get_public_key_from_coin_command (coin,
ref->details.deposit.coin_idx,
&coin_pub);
wire = json_loads (ref->details.deposit.wire_details,
JSON_REJECT_DUPLICATES,
NULL);
GNUNET_assert (NULL != wire);
TALER_JSON_hash (wire,
&h_wire);
json_decref (wire);
contract = json_loads (ref->details.deposit.contract,
JSON_REJECT_DUPLICATES,
NULL);
GNUNET_assert (NULL != contract);
TALER_JSON_hash (contract,
&h_contract);
json_decref (contract);
cmd->details.deposit_wtid.dwh
= TALER_EXCHANGE_deposit_wtid (exchange,
&ref->details.deposit.merchant_priv,
&h_wire,
&h_contract,
&coin_pub,
ref->details.deposit.transaction_id,
&deposit_wtid_cb,
is);
}
return;
case OC_RUN_AGGREGATOR:
{
const struct GNUNET_DISK_FileHandle *pr;
cmd->details.run_aggregator.aggregator_proc
= GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-aggregator",
"taler-exchange-aggregator",
"-c", "test_exchange_api.conf",
"-t", /* exit when done */
NULL);
if (NULL == cmd->details.run_aggregator.aggregator_proc)
{
GNUNET_break (0);
fail (is);
return;
}
pr = GNUNET_DISK_pipe_handle (sigpipe, GNUNET_DISK_PIPE_END_READ);
child_death_task = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
pr,
&maint_child_death, is);
return;
}
case OC_CHECK_BANK_TRANSFER:
{
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.check_bank_transfer.amount,
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.reserve_withdraw.amount,
is->ip);
fail (is);
return;
}
if (GNUNET_OK !=
FAKEBANK_check (fakebank,
&amount,
cmd->details.check_bank_transfer.account_debit,
cmd->details.check_bank_transfer.account_credit,
&cmd->details.check_bank_transfer.wtid))
{
GNUNET_break (0);
fail (is);
return;
}
next_command (is);
return;
}
case OC_CHECK_BANK_TRANSFERS_EMPTY:
{
if (GNUNET_OK !=
FAKEBANK_check_empty (fakebank))
{
GNUNET_break (0);
fail (is);
return;
}
next_command (is);
return;
}
case OC_REFUND:
{
const struct Command *coin;
struct GNUNET_HashCode h_contract;
json_t *contract;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct TALER_Amount refund_fee;
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.refund.amount,
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.refund.amount,
is->ip);
fail (is);
return;
}
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.refund.fee,
&refund_fee))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.refund.fee,
is->ip);
fail (is);
return;
}
ref = find_command (is,
cmd->details.refund.deposit_ref);
GNUNET_assert (NULL != ref);
contract = json_loads (ref->details.deposit.contract,
JSON_REJECT_DUPLICATES,
NULL);
GNUNET_assert (NULL != contract);
TALER_JSON_hash (contract,
&h_contract);
json_decref (contract);
coin = find_command (is,
ref->details.deposit.coin_ref);
GNUNET_assert (NULL != coin);
get_public_key_from_coin_command (coin,
ref->details.deposit.coin_idx,
&coin_pub);
cmd->details.refund.rh
= TALER_EXCHANGE_refund (exchange,
&amount,
&refund_fee,
&h_contract,
ref->details.deposit.transaction_id,
&coin_pub,
cmd->details.refund.rtransaction_id,
&ref->details.deposit.merchant_priv,
&refund_cb,
is);
if (NULL == cmd->details.refund.rh)
{
GNUNET_break (0);
fail (is);
return;
}
return;
}
default:
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unknown instruction %d at %u (%s)\n",
cmd->oc,
is->ip,
cmd->label);
fail (is);
return;
}
}
/**
* Signal handler called for SIGCHLD. Triggers the
* respective handler by writing to the trigger pipe.
*/
static void
sighandler_child_death ()
{
static char c;
int old_errno = errno; /* back-up errno */
GNUNET_break (1 ==
GNUNET_DISK_file_write (GNUNET_DISK_pipe_handle
(sigpipe, GNUNET_DISK_PIPE_END_WRITE),
&c, sizeof (c)));
errno = old_errno; /* restore errno */
}
/**
* Function run when the test terminates (good or bad) with timeout.
*
* @param cls NULL
*/
static void
do_timeout (void *cls)
{
timeout_task = NULL;
GNUNET_SCHEDULER_shutdown ();
}
/**
* Function run when the test terminates (good or bad).
* Cleans up our state.
*
* @param cls the interpreter state.
*/
static void
do_shutdown (void *cls)
{
struct InterpreterState *is = cls;
struct Command *cmd;
unsigned int i;
for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
{
switch (cmd->oc)
{
case OC_END:
GNUNET_assert (0);
break;
case OC_ADMIN_ADD_INCOMING:
if (NULL != cmd->details.admin_add_incoming.aih)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_admin_add_incoming_cancel (cmd->details.admin_add_incoming.aih);
cmd->details.admin_add_incoming.aih = NULL;
}
break;
case OC_WITHDRAW_STATUS:
if (NULL != cmd->details.reserve_status.wsh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_reserve_status_cancel (cmd->details.reserve_status.wsh);
cmd->details.reserve_status.wsh = NULL;
}
break;
case OC_WITHDRAW_SIGN:
if (NULL != cmd->details.reserve_withdraw.wsh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_reserve_withdraw_cancel (cmd->details.reserve_withdraw.wsh);
cmd->details.reserve_withdraw.wsh = NULL;
}
if (NULL != cmd->details.reserve_withdraw.sig.rsa_signature)
{
GNUNET_CRYPTO_rsa_signature_free (cmd->details.reserve_withdraw.sig.rsa_signature);
cmd->details.reserve_withdraw.sig.rsa_signature = NULL;
}
break;
case OC_DEPOSIT:
if (NULL != cmd->details.deposit.dh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_deposit_cancel (cmd->details.deposit.dh);
cmd->details.deposit.dh = NULL;
}
break;
case OC_REFRESH_MELT:
if (NULL != cmd->details.refresh_melt.rmh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_refresh_melt_cancel (cmd->details.refresh_melt.rmh);
cmd->details.refresh_melt.rmh = NULL;
}
GNUNET_free_non_null (cmd->details.refresh_melt.fresh_pks);
cmd->details.refresh_melt.fresh_pks = NULL;
GNUNET_free_non_null (cmd->details.refresh_melt.refresh_data);
cmd->details.refresh_melt.refresh_data = NULL;
cmd->details.refresh_melt.refresh_data_length = 0;
break;
case OC_REFRESH_REVEAL:
if (NULL != cmd->details.refresh_reveal.rrh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_refresh_reveal_cancel (cmd->details.refresh_reveal.rrh);
cmd->details.refresh_reveal.rrh = NULL;
}
{
unsigned int j;
struct FreshCoin *fresh_coins;
fresh_coins = cmd->details.refresh_reveal.fresh_coins;
for (j=0;jdetails.refresh_reveal.num_fresh_coins;j++)
GNUNET_CRYPTO_rsa_signature_free (fresh_coins[j].sig.rsa_signature);
}
GNUNET_free_non_null (cmd->details.refresh_reveal.fresh_coins);
cmd->details.refresh_reveal.fresh_coins = NULL;
cmd->details.refresh_reveal.num_fresh_coins = 0;
break;
case OC_REFRESH_LINK:
if (NULL != cmd->details.refresh_link.rlh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_refresh_link_cancel (cmd->details.refresh_link.rlh);
cmd->details.refresh_link.rlh = NULL;
}
break;
case OC_WIRE:
if (NULL != cmd->details.wire.wh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_wire_cancel (cmd->details.wire.wh);
cmd->details.wire.wh = NULL;
}
break;
case OC_WIRE_DEPOSITS:
if (NULL != cmd->details.wire_deposits.wdh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_wire_deposits_cancel (cmd->details.wire_deposits.wdh);
cmd->details.wire_deposits.wdh = NULL;
}
break;
case OC_DEPOSIT_WTID:
if (NULL != cmd->details.deposit_wtid.dwh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_deposit_wtid_cancel (cmd->details.deposit_wtid.dwh);
cmd->details.deposit_wtid.dwh = NULL;
}
break;
case OC_RUN_AGGREGATOR:
if (NULL != cmd->details.run_aggregator.aggregator_proc)
{
GNUNET_break (0 ==
GNUNET_OS_process_kill (cmd->details.run_aggregator.aggregator_proc,
SIGKILL));
GNUNET_OS_process_wait (cmd->details.run_aggregator.aggregator_proc);
GNUNET_OS_process_destroy (cmd->details.run_aggregator.aggregator_proc);
cmd->details.run_aggregator.aggregator_proc = NULL;
}
break;
case OC_CHECK_BANK_TRANSFER:
break;
case OC_CHECK_BANK_TRANSFERS_EMPTY:
break;
case OC_REFUND:
if (NULL != cmd->details.refund.rh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_EXCHANGE_refund_cancel (cmd->details.refund.rh);
cmd->details.refund.rh = NULL;
}
break;
default:
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unknown instruction %d at %u (%s)\n",
cmd->oc,
i,
cmd->label);
break;
}
}
if (NULL != is->task)
{
GNUNET_SCHEDULER_cancel (is->task);
is->task = NULL;
}
GNUNET_free (is);
if (NULL != fakebank)
{
FAKEBANK_stop (fakebank);
fakebank = NULL;
}
if (NULL != exchange)
{
TALER_EXCHANGE_disconnect (exchange);
exchange = NULL;
}
if (NULL != ctx)
{
GNUNET_CURL_fini (ctx);
ctx = NULL;
}
if (NULL != rc)
{
GNUNET_CURL_gnunet_rc_destroy (rc);
rc = NULL;
}
if (NULL != timeout_task)
{
GNUNET_SCHEDULER_cancel (timeout_task);
timeout_task = NULL;
}
}
/**
* Functions of this type are called to provide the retrieved signing and
* denomination keys of the exchange. No TALER_EXCHANGE_*() functions should be called
* in this callback.
*
* @param cls closure
* @param keys information about keys of the exchange
*/
static void
cert_cb (void *cls,
const struct TALER_EXCHANGE_Keys *keys)
{
struct InterpreterState *is = cls;
/* check that keys is OK */
#define ERR(cond) do { if(!(cond)) break; GNUNET_break (0); GNUNET_SCHEDULER_shutdown(); return; } while (0)
ERR (NULL == keys);
ERR (0 == keys->num_sign_keys);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Read %u signing keys\n",
keys->num_sign_keys);
ERR (0 == keys->num_denom_keys);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Read %u denomination keys\n",
keys->num_denom_keys);
#undef ERR
/* run actual tests via interpreter-loop */
is->keys = keys;
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
is);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
*/
static void
run (void *cls)
{
struct InterpreterState *is;
static const char *melt_fresh_amounts_1[] = {
"EUR:1",
"EUR:1",
"EUR:1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.1",
"EUR:0.01",
"EUR:0.01",
"EUR:0.01",
"EUR:0.01",
"EUR:0.01",
"EUR:0.01",
/* with 0.01 withdraw fees (except for 1ct coins),
this totals up to exactly EUR:3.97, and with
the 0.03 refresh fee, to EUR:4.0*/
NULL
};
static struct Command commands[] =
{
/* *************** start of /wire testing ************** */
#if WIRE_TEST
{ .oc = OC_WIRE,
.label = "wire-test",
/* expecting 'test' method in response */
.expected_response_code = MHD_HTTP_OK,
.details.wire.format = "test" },
#endif
#if WIRE_SEPA
{ .oc = OC_WIRE,
.label = "wire-sepa",
/* expecting 'sepa' method in response */
.expected_response_code = MHD_HTTP_OK,
.details.wire.format = "sepa" },
#endif
/* *************** end of /wire testing ************** */
#if WIRE_TEST
/* None of this works if 'test' is not allowed as we do
/admin/add/incoming with format 'test' */
/* Fill reserve with EUR:5.01, as withdraw fee is 1 ct per config */
{ .oc = OC_ADMIN_ADD_INCOMING,
.label = "create-reserve-1",
.expected_response_code = MHD_HTTP_OK,
.details.admin_add_incoming.sender_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42}",
.details.admin_add_incoming.transfer_details = "{ \"uuid\":1 }",
.details.admin_add_incoming.amount = "EUR:5.01" },
/* Withdraw a 5 EUR coin, at fee of 1 ct */
{ .oc = OC_WITHDRAW_SIGN,
.label = "withdraw-coin-1",
.expected_response_code = MHD_HTTP_OK,
.details.reserve_withdraw.reserve_reference = "create-reserve-1",
.details.reserve_withdraw.amount = "EUR:5" },
/* Check that deposit and withdraw operation are in history, and
that the balance is now at zero */
{ .oc = OC_WITHDRAW_STATUS,
.label = "withdraw-status-1",
.expected_response_code = MHD_HTTP_OK,
.details.reserve_status.reserve_reference = "create-reserve-1",
.details.reserve_status.expected_balance = "EUR:0" },
/* Try to deposit the 5 EUR coin (in full) */
{ .oc = OC_DEPOSIT,
.label = "deposit-simple",
.expected_response_code = MHD_HTTP_OK,
.details.deposit.amount = "EUR:5",
.details.deposit.coin_ref = "withdraw-coin-1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
.details.deposit.transaction_id = 1 },
/* Try to overdraw funds ... */
{ .oc = OC_WITHDRAW_SIGN,
.label = "withdraw-coin-2",
.expected_response_code = MHD_HTTP_PAYMENT_REQUIRED,
.details.reserve_withdraw.reserve_reference = "create-reserve-1",
.details.reserve_withdraw.amount = "EUR:5" },
/* Try to double-spend the 5 EUR coin with different wire details */
{ .oc = OC_DEPOSIT,
.label = "deposit-double-1",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.deposit.amount = "EUR:5",
.details.deposit.coin_ref = "withdraw-coin-1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":43 }",
.details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
.details.deposit.transaction_id = 1 },
/* Try to double-spend the 5 EUR coin at the same merchant (but different
transaction ID) */
{ .oc = OC_DEPOSIT,
.label = "deposit-double-2",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.deposit.amount = "EUR:5",
.details.deposit.coin_ref = "withdraw-coin-1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
.details.deposit.transaction_id = 2 },
/* Try to double-spend the 5 EUR coin at the same merchant (but different
contract) */
{ .oc = OC_DEPOSIT,
.label = "deposit-double-3",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.deposit.amount = "EUR:5",
.details.deposit.coin_ref = "withdraw-coin-1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\":[{ \"name\":\"ice cream\", \"value\":2 } ] }",
.details.deposit.transaction_id = 1 },
/* ***************** /refresh testing ******************** */
/* Fill reserve with EUR:5.01, as withdraw fee is 1 ct */
{ .oc = OC_ADMIN_ADD_INCOMING,
.label = "refresh-create-reserve-1",
.expected_response_code = MHD_HTTP_OK,
.details.admin_add_incoming.sender_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":424 }",
.details.admin_add_incoming.transfer_details = "{ \"uuid\":2 }",
.details.admin_add_incoming.amount = "EUR:5.01" },
/* Withdraw a 5 EUR coin, at fee of 1 ct */
{ .oc = OC_WITHDRAW_SIGN,
.label = "refresh-withdraw-coin-1",
.expected_response_code = MHD_HTTP_OK,
.details.reserve_withdraw.reserve_reference = "refresh-create-reserve-1",
.details.reserve_withdraw.amount = "EUR:5" },
/* Try to partially spend (deposit) 1 EUR of the 5 EUR coin (in full)
(merchant would receive EUR:0.99 due to 1 ct deposit fee) */
{ .oc = OC_DEPOSIT,
.label = "refresh-deposit-partial",
.expected_response_code = MHD_HTTP_OK,
.details.deposit.amount = "EUR:1",
.details.deposit.coin_ref = "refresh-withdraw-coin-1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\" : [ { \"name\":\"ice cream\", \"value\":\"EUR:1\" } ] }",
.details.deposit.transaction_id = 42421 },
/* Melt the rest of the coin's value (EUR:4.00 = 3x EUR:1.03 + 7x EUR:0.13) */
{ .oc = OC_REFRESH_MELT,
.label = "refresh-melt-1",
.expected_response_code = MHD_HTTP_OK,
.details.refresh_melt.melted_coin = {
.amount = "EUR:4",
.coin_ref = "refresh-withdraw-coin-1" },
.details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },
/* Complete (successful) melt operation, and withdraw the coins */
{ .oc = OC_REFRESH_REVEAL,
.label = "refresh-reveal-1",
.expected_response_code = MHD_HTTP_OK,
.details.refresh_reveal.melt_ref = "refresh-melt-1" },
/* Test that /refresh/link works */
{ .oc = OC_REFRESH_LINK,
.label = "refresh-link-1",
.expected_response_code = MHD_HTTP_OK,
.details.refresh_link.reveal_ref = "refresh-reveal-1" },
/* Test successfully spending coins from the refresh operation:
first EUR:1 */
{ .oc = OC_DEPOSIT,
.label = "refresh-deposit-refreshed-1a",
.expected_response_code = MHD_HTTP_OK,
.details.deposit.amount = "EUR:1",
.details.deposit.coin_ref = "refresh-reveal-1",
.details.deposit.coin_idx = 0,
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
.details.deposit.transaction_id = 2 },
/* Test successfully spending coins from the refresh operation:
finally EUR:0.1 */
{ .oc = OC_DEPOSIT,
.label = "refresh-deposit-refreshed-1b",
.expected_response_code = MHD_HTTP_OK,
.details.deposit.amount = "EUR:0.1",
.details.deposit.coin_ref = "refresh-reveal-1",
.details.deposit.coin_idx = 4,
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":43 }",
.details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
.details.deposit.transaction_id = 2 },
/* Test running a failing melt operation (same operation again must fail) */
{ .oc = OC_REFRESH_MELT,
.label = "refresh-melt-failing",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.refresh_melt.melted_coin = {
.amount = "EUR:4",
.coin_ref = "refresh-withdraw-coin-1" },
.details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },
// FIXME: also test with coin that was already melted
// (signature differs from coin that was deposited...)
/* *************** end of /refresh testing ************** */
/* ************** Test tracking API ******************** */
/* Try resolving a deposit's WTID, as we never triggered
execution of transactions, the answer should be that
the exchange knows about the deposit, but has no WTID yet. */
{ .oc = OC_DEPOSIT_WTID,
.label = "deposit-wtid-found",
.expected_response_code = MHD_HTTP_ACCEPTED,
.details.deposit_wtid.deposit_ref = "deposit-simple" },
/* Try resolving a deposit's WTID for a failed deposit.
As the deposit failed, the answer should be that
the exchange does NOT know about the deposit. */
{ .oc = OC_DEPOSIT_WTID,
.label = "deposit-wtid-failing",
.expected_response_code = MHD_HTTP_NOT_FOUND,
.details.deposit_wtid.deposit_ref = "deposit-double-2" },
/* Try resolving an undefined (all zeros) WTID; this
should fail as obviously the exchange didn't use that
WTID value for any transaction. */
{ .oc = OC_WIRE_DEPOSITS,
.label = "wire-deposit-failing",
.expected_response_code = MHD_HTTP_NOT_FOUND },
/* Run transfers. Note that _actual_ aggregation will NOT
happen here, as each deposit operation is run with a
fresh merchant public key! */
{ .oc = OC_RUN_AGGREGATOR,
.label = "run-aggregator" },
{ .oc = OC_CHECK_BANK_TRANSFER,
.label = "check_bank_transfer-499c",
.details.check_bank_transfer.amount = "EUR:4.99",
.details.check_bank_transfer.account_debit = 2,
.details.check_bank_transfer.account_credit = 42
},
{ .oc = OC_CHECK_BANK_TRANSFER,
.label = "check_bank_transfer-99c1",
.details.check_bank_transfer.amount = "EUR:0.99",
.details.check_bank_transfer.account_debit = 2,
.details.check_bank_transfer.account_credit = 42
},
{ .oc = OC_CHECK_BANK_TRANSFER,
.label = "check_bank_transfer-99c2",
.details.check_bank_transfer.amount = "EUR:0.99",
.details.check_bank_transfer.account_debit = 2,
.details.check_bank_transfer.account_credit = 42
},
{ .oc = OC_CHECK_BANK_TRANSFER,
.label = "check_bank_transfer-9c",
.details.check_bank_transfer.amount = "EUR:0.09",
.details.check_bank_transfer.account_debit = 2,
.details.check_bank_transfer.account_credit = 43
},
{ .oc = OC_CHECK_BANK_TRANSFERS_EMPTY,
.label = "check_bank_empty" },
{ .oc = OC_DEPOSIT_WTID,
.label = "deposit-wtid-ok",
.expected_response_code = MHD_HTTP_OK,
.details.deposit_wtid.deposit_ref = "deposit-simple",
.details.deposit_wtid.bank_transfer_ref = "check_bank_transfer-499c" },
{ .oc = OC_WIRE_DEPOSITS,
.label = "wire-deposits-sucess-bank",
.expected_response_code = MHD_HTTP_OK,
.details.wire_deposits.wtid_ref = "check_bank_transfer-99c1",
.details.wire_deposits.total_amount_expected = "EUR:0.99" },
{ .oc = OC_WIRE_DEPOSITS,
.label = "wire-deposits-sucess-wtid",
.expected_response_code = MHD_HTTP_OK,
.details.wire_deposits.wtid_ref = "deposit-wtid-ok",
.details.wire_deposits.total_amount_expected = "EUR:4.99" },
/* ************** End of tracking API testing************* */
/* ************** Test /refund API ************* */
/* Fill reserve with EUR:5.01, as withdraw fee is 1 ct per config */
{ .oc = OC_ADMIN_ADD_INCOMING,
.label = "create-reserve-r1",
.expected_response_code = MHD_HTTP_OK,
.details.admin_add_incoming.sender_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.admin_add_incoming.transfer_details = "{ \"uuid\":3 }",
.details.admin_add_incoming.amount = "EUR:5.01" },
/* Withdraw a 5 EUR coin, at fee of 1 ct */
{ .oc = OC_WITHDRAW_SIGN,
.label = "withdraw-coin-r1",
.expected_response_code = MHD_HTTP_OK,
.details.reserve_withdraw.reserve_reference = "create-reserve-r1",
.details.reserve_withdraw.amount = "EUR:5" },
/* Spend 5 EUR of the 5 EUR coin (in full)
(merchant would receive EUR:4.99 due to 1 ct deposit fee) */
{ .oc = OC_DEPOSIT,
.label = "deposit-refund-1",
.expected_response_code = MHD_HTTP_OK,
.details.deposit.amount = "EUR:5",
.details.deposit.coin_ref = "withdraw-coin-r1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\" : [ { \"name\":\"ice cream\", \"value\":\"EUR:5\" } ] }",
.details.deposit.transaction_id = 424210,
.details.deposit.refund_deadline = { 60LL * 1000 * 1000 } /* 60 s */,
},
/* Run transfers. Should do nothing as refund deadline blocks it */
{ .oc = OC_RUN_AGGREGATOR,
.label = "run-aggregator-refund" },
/* check that aggregator didn't do anything, as expected */
{ .oc = OC_CHECK_BANK_TRANSFERS_EMPTY,
.label = "check-refund-not-run" },
/* Trigger refund */
{ .oc = OC_REFUND,
.label = "refund-ok",
.expected_response_code = MHD_HTTP_OK,
.details.refund.amount = "EUR:5",
.details.refund.fee = "EUR:0.01",
.details.refund.deposit_ref = "deposit-refund-1",
.details.refund.rtransaction_id = 1
},
/* Spend 4.99 EUR of the refunded 4.99 EUR coin (1ct gone due to refund)
(merchant would receive EUR:4.98 due to 1 ct deposit fee) */
{ .oc = OC_DEPOSIT,
.label = "deposit-refund-2",
.expected_response_code = MHD_HTTP_OK,
.details.deposit.amount = "EUR:4.99",
.details.deposit.coin_ref = "withdraw-coin-r1",
.details.deposit.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost:8082/\", \"account_number\":42 }",
.details.deposit.contract = "{ \"items\" : [ { \"name\":\"more ice cream\", \"value\":\"EUR:5\" } ] }",
.details.deposit.transaction_id = 424211,
},
/* Run transfers. This will do the transfer as refund deadline was 0 */
{ .oc = OC_RUN_AGGREGATOR,
.label = "run-aggregator-3" },
/* Check that deposit did run */
{ .oc = OC_CHECK_BANK_TRANSFER,
.label = "check_bank_transfer-pre-refund",
.details.check_bank_transfer.amount = "EUR:4.98",
.details.check_bank_transfer.account_debit = 2,
.details.check_bank_transfer.account_credit = 42
},
/* Run failing refund, as past deadline & aggregation */
{ .oc = OC_REFUND,
.label = "refund-fail",
.expected_response_code = MHD_HTTP_GONE,
.details.refund.amount = "EUR:4.99",
.details.refund.fee = "EUR:0.01",
.details.refund.deposit_ref = "deposit-refund-2",
.details.refund.rtransaction_id = 2
},
#endif
{ .oc = OC_END }
};
is = GNUNET_new (struct InterpreterState);
is->commands = commands;
ctx = GNUNET_CURL_init (&GNUNET_CURL_gnunet_scheduler_reschedule,
&rc);
GNUNET_assert (NULL != ctx);
rc = GNUNET_CURL_gnunet_rc_create (ctx);
fakebank = FAKEBANK_start (8082);
exchange = TALER_EXCHANGE_connect (ctx,
"http://localhost:8081",
&cert_cb, is,
TALER_EXCHANGE_OPTION_END);
GNUNET_assert (NULL != exchange);
timeout_task
= GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_SECONDS, 150),
&do_timeout, NULL);
GNUNET_SCHEDULER_add_shutdown (&do_shutdown, is);
}
/**
* Main function for the testcase for the exchange API.
*
* @param argc expected to be 1
* @param argv expected to only contain the program name
*/
int
main (int argc,
char * const *argv)
{
struct GNUNET_OS_Process *proc;
struct GNUNET_OS_Process *exchanged;
struct GNUNET_SIGNAL_Context *shc_chld;
GNUNET_log_setup ("test-exchange-api",
"WARNING",
NULL);
/* These might get in the way... */
unsetenv ("XDG_DATA_HOME");
unsetenv ("XDG_CONFIG_HOME");
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-keyup",
"taler-exchange-keyup",
"-c", "test_exchange_api.conf",
NULL);
GNUNET_OS_process_wait (proc);
GNUNET_OS_process_destroy (proc);
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-dbinit",
"taler-exchange-dbinit",
"-c", "test_exchange_api.conf",
"-r",
NULL);
GNUNET_OS_process_wait (proc);
GNUNET_OS_process_destroy (proc);
exchanged = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-httpd",
"taler-exchange-httpd",
"-c", "test_exchange_api.conf",
NULL);
/* give child time to start and bind against the socket */
fprintf (stderr, "Waiting for taler-exchange-httpd to be ready");
do
{
fprintf (stderr, ".");
sleep (1);
}
while (0 != system ("wget -q -t 1 -T 1 http://127.0.0.1:8081/keys -o /dev/null -O /dev/null"));
fprintf (stderr, "\n");
result = GNUNET_SYSERR;
sigpipe = GNUNET_DISK_pipe (GNUNET_NO, GNUNET_NO, GNUNET_NO, GNUNET_NO);
GNUNET_assert (NULL != sigpipe);
shc_chld = GNUNET_SIGNAL_handler_install (GNUNET_SIGCHLD,
&sighandler_child_death);
GNUNET_SCHEDULER_run (&run, NULL);
GNUNET_SIGNAL_handler_uninstall (shc_chld);
shc_chld = NULL;
GNUNET_DISK_pipe_close (sigpipe);
GNUNET_OS_process_kill (exchanged,
SIGTERM);
GNUNET_OS_process_wait (exchanged);
GNUNET_OS_process_destroy (exchanged);
return (GNUNET_OK == result) ? 0 : 1;
}
/* end of test_exchange_api.c */