/*
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 Lesser General Public License as published by the Free Software
Foundation; either version 2.1, 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with
TALER; see the file COPYING.LGPL. If not, If not, see
*/
/**
* @file merchant/test_merchant_api.c
* @brief testcase to test merchant's HTTP API interface
* @author Christian Grothoff
*/
#include "platform.h"
#include
#include
#include
#include
#include "taler_merchant_service.h"
#include
#include
#include
/**
* URI under which the merchant is reachable during the testcase.
*/
#define MERCHANT_URI "http://localhost:8082/"
/**
* URI under which the exchange is reachable during the testcase.
*/
#define EXCHANGE_URI "http://localhost:8081/"
/**
* Handle to access the exchange.
*/
static struct TALER_EXCHANGE_Handle *exchange;
/**
* Main execution context for the main loop of the exchange.
*/
static struct GNUNET_CURL_Context *ctx;
/**
* Public key of the merchant, matches the private
* key from "test_merchant.priv".
*/
static struct TALER_MerchantPublicKeyP merchant_pub;
/**
* Task run on timeout.
*/
static struct GNUNET_SCHEDULER_Task *timeout_task;
/**
* Context for running the #ctx's event loop.
*/
static struct GNUNET_CURL_RescheduleContext *rc;
/**
* 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,
/**
* Pay with coins.
*/
OC_PAY
};
/**
* 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;
/**
* Wire details (JSON).
*/
const char *wire;
/**
* 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_DenominationBlindingKey blinding_key;
/**
* Withdraw handle (while operation is running).
*/
struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh;
} reserve_withdraw;
/**
* Information for a #OC_PAY command.
* FIXME: support tests where we pay with multiple coins at once.
*/
struct
{
/**
* Amount to pay (total for the entire contract).
*/
const char *total_amount;
/**
* Maximum fee covered by merchant.
*/
const char *max_fee;
/**
* 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;
/**
* Amount to pay (from the coin, including fee).
*/
const char *amount_with_fee;
/**
* Amount to pay (from the coin, excluding fee). The sum of the
* deltas between all @e amount_with_fee and the @e
* amount_without_fee must be less than max_fee, and the sum of
* the @e amount_with_fee must be larger than the @e
* total_amount.
*/
const char *amount_without_fee;
/**
* 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;
/**
* Deposit handle while operation is running.
*/
struct TALER_MERCHANT_Pay *ph;
} pay;
} 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;
};
/**
* 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);
/**
* 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;
}
is->ip++;
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
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:
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;
}
is->ip++;
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
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;
}
is->ip++;
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
is);
}
/**
* Function called with the result of a /pay 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 obj the received JSON reply, should be kept as proof (and, in case of errors,
* be forwarded to the customer)
*/
static void
pay_cb (void *cls,
unsigned int http_status,
const char *redirect_uri,
const json_t *obj)
{
struct InterpreterState *is = cls;
struct Command *cmd = &is->commands[is->ip];
cmd->details.pay.ph = 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;
}
is->ip++;
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
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;
}
/**
* Run the main interpreter loop that performs exchange operations.
*
* @param cls contains the `struct InterpreterState`
*/
static void
interpreter_run (void *cls)
{
const struct GNUNET_SCHEDULER_TaskContext *tc;
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 *wire;
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;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Interpreter runs command %u/%s(%u)\n",
is->ip,
cmd->label,
cmd->oc);
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;
}
wire = json_loads (cmd->details.admin_add_incoming.wire,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == wire)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse wire details `%s' at %u\n",
cmd->details.admin_add_incoming.wire,
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,
wire,
&add_incoming_cb,
is);
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);
cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key
= GNUNET_CRYPTO_rsa_blinding_key_create (GNUNET_CRYPTO_rsa_public_key_len (cmd->details.reserve_withdraw.pk->key.rsa_public_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_PAY:
{
struct TALER_MERCHANT_PayCoin pc;
struct TALER_Amount amount;
struct TALER_Amount max_fee;
json_t *wire;
json_t *contract;
struct GNUNET_HashCode h_wire;
struct GNUNET_HashCode h_contract;
struct GNUNET_TIME_Absolute refund_deadline;
struct GNUNET_TIME_Absolute timestamp;
struct TALER_MerchantSignatureP merchant_sig;
/* get amount */
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.pay.total_amount,
&amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse total amount `%s' at %u\n",
cmd->details.pay.total_amount,
is->ip);
fail (is);
return;
}
/* get max_fee */
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.pay.max_fee,
&max_fee))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse max_fee `%s' at %u\n",
cmd->details.pay.max_fee,
is->ip);
fail (is);
return;
}
/* parse wire details */
wire = json_loads (cmd->details.pay.wire_details,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == wire)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse wire details `%s' at %u\n",
cmd->details.pay.wire_details,
is->ip);
fail (is);
return;
}
TALER_JSON_hash (wire,
&h_wire);
json_decref (wire);
/* parse contract */
contract = json_loads (cmd->details.pay.contract,
JSON_REJECT_DUPLICATES,
NULL);
if (NULL == contract)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse contract details `%s' at instruction %u\n",
cmd->details.pay.contract,
is->ip);
fail (is);
return;
}
TALER_JSON_hash (contract,
&h_contract);
json_decref (contract);
/* initialize 'pc' (FIXME: to do in a loop later...) */
{
const struct Command *ref;
memset (&pc, 0, sizeof (pc));
ref = find_command (is,
cmd->details.pay.coin_ref);
GNUNET_assert (NULL != ref);
switch (ref->oc)
{
case OC_WITHDRAW_SIGN:
pc.coin_priv = ref->details.reserve_withdraw.coin_priv;
pc.denom_pub = ref->details.reserve_withdraw.pk->key;
pc.denom_sig = ref->details.reserve_withdraw.sig;
break;
default:
GNUNET_assert (0);
}
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.pay.amount_without_fee,
&pc.amount_without_fee))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.pay.amount_without_fee,
is->ip);
fail (is);
return;
}
if (GNUNET_OK !=
TALER_string_to_amount (cmd->details.pay.amount_with_fee,
&pc.amount_with_fee))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %u\n",
cmd->details.pay.amount_with_fee,
is->ip);
fail (is);
return;
}
}
if (0 == cmd->details.pay.refund_deadline.rel_value_us)
refund_deadline = GNUNET_TIME_UNIT_ZERO_ABS; /* no refunds */
else
refund_deadline = GNUNET_TIME_relative_to_absolute (cmd->details.pay.refund_deadline);
GNUNET_TIME_round_abs (&refund_deadline);
timestamp = GNUNET_TIME_absolute_get ();
GNUNET_TIME_round_abs (×tamp);
memset (&merchant_sig, 0, sizeof (merchant_sig)); // FIXME: init properly!
cmd->details.pay.ph
= TALER_MERCHANT_pay_wallet (ctx,
MERCHANT_URI "pay",
&h_contract,
cmd->details.pay.transaction_id,
&amount,
&max_fee,
&merchant_pub,
&merchant_sig,
timestamp,
refund_deadline,
&h_wire,
EXCHANGE_URI,
1 /* num_coins */,
&pc /* coins */,
&pay_cb,
is);
}
if (NULL == cmd->details.pay.ph)
{
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;
}
is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
is);
}
/**
* Function run when the test times out.
*
* @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;
if (NULL != timeout_task)
{
GNUNET_SCHEDULER_cancel (timeout_task);
timeout_task = NULL;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Shutdown executing\n");
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;
}
if (NULL != cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key)
{
GNUNET_CRYPTO_rsa_blinding_key_free (cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key);
cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key = NULL;
}
break;
case OC_PAY:
if (NULL != cmd->details.pay.ph)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
i,
cmd->label);
TALER_MERCHANT_pay_cancel (cmd->details.pay.ph);
cmd->details.pay.ph = 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 != 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;
}
}
/**
* 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 */
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Certificate callback invoked, starting interpreter\n");
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 struct Command commands[] =
{
/* 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.pay.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost/\", \"account_number\":62 }",
.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 pay with the 5 EUR coin (in full) */
{ .oc = OC_PAY,
.label = "deposit-simple",
.expected_response_code = MHD_HTTP_OK,
.details.pay.total_amount = "EUR:5",
.details.pay.max_fee = "EUR:0.5",
.details.pay.coin_ref = "withdraw-coin-1",
.details.pay.amount_with_fee = "EUR:5",
.details.pay.amount_without_fee = "EUR:4.99",
.details.pay.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost/\", \"account_number\":62 }",
.details.pay.contract = "{ \"items\":[ {\"name\":\"ice cream\", \"value\":1} ] }",
.details.pay.transaction_id = 1 },
/* Try to double-spend the 5 EUR coin with different wire details */
{ .oc = OC_PAY,
.label = "deposit-double-1",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.pay.total_amount = "EUR:5",
.details.pay.max_fee = "EUR:0.5",
.details.pay.coin_ref = "withdraw-coin-1",
.details.pay.amount_with_fee = "EUR:5",
.details.pay.amount_without_fee = "EUR:4.99",
.details.pay.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost/\", \"account_number\":62 }",
.details.pay.contract = "{ \"items\":[{ \"name\":\"ice cream\", \"value\":1} ] }",
.details.pay.transaction_id = 1 },
/* Try to double-spend the 5 EUR coin at the same merchant (but different
transaction ID) */
{ .oc = OC_PAY,
.label = "deposit-double-2",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.pay.total_amount = "EUR:5",
.details.pay.max_fee = "EUR:0.5",
.details.pay.coin_ref = "withdraw-coin-1",
.details.pay.amount_with_fee = "EUR:5",
.details.pay.amount_without_fee = "EUR:4.99",
.details.pay.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost/\", \"account_number\":62 }",
.details.pay.contract = "{ \"items\":[ {\"name\":\"ice cream\", \"value\":1} ] }",
.details.pay.transaction_id = 2 },
/* Try to double-spend the 5 EUR coin at the same merchant (but different
contract) */
{ .oc = OC_PAY,
.label = "deposit-double-3",
.expected_response_code = MHD_HTTP_FORBIDDEN,
.details.pay.total_amount = "EUR:5",
.details.pay.max_fee = "EUR:0.5",
.details.pay.coin_ref = "withdraw-coin-1",
.details.pay.amount_with_fee = "EUR:5",
.details.pay.amount_without_fee = "EUR:4.99",
.details.pay.wire_details = "{ \"type\":\"test\", \"bank_uri\":\"http://localhost/\", \"account_number\":62 }",
.details.pay.contract = "{ \"items\":[ {\"name\":\"ice cream\", \"value\":2} ] }",
.details.pay.transaction_id = 1 },
{ .oc = OC_END }
};
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Interpreter initializing\n");
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);
exchange = TALER_EXCHANGE_connect (ctx,
EXCHANGE_URI,
&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)
{
/* Value from "gnunet-ecc -p test_merchant.priv" */
const char *merchant_pub_str
= "5TRNSWAWHKBJ7G4T3PKRCQA6MCB3MX82F4M2XXS1653KE1V8RFPG";
struct GNUNET_OS_Process *proc;
struct GNUNET_OS_Process *exchanged;
struct GNUNET_OS_Process *merchantd;
unsetenv ("XDG_DATA_HOME");
unsetenv ("XDG_CONFIG_HOME");
GNUNET_log_setup ("test-merchant-api",
"WARNING",
NULL);
GNUNET_assert (GNUNET_OK ==
GNUNET_STRINGS_string_to_data (merchant_pub_str,
strlen (merchant_pub_str),
&merchant_pub,
sizeof (merchant_pub)));
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-keyup",
"taler-exchange-keyup",
"-c", "test_merchant_api.conf",
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_merchant_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 " EXCHANGE_URI "keys -o /dev/null -O /dev/null"));
fprintf (stderr, "\n");
merchantd = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-merchant-httpd",
"taler-merchant-httpd",
"-c", "test_merchant_api.conf",
NULL);
/* give child time to start and bind against the socket */
fprintf (stderr, "Waiting for taler-merchant-httpd to be ready");
do
{
fprintf (stderr, ".");
sleep (1);
}
while (0 != system ("wget -q -t 1 -T 1 " MERCHANT_URI " -o /dev/null -O /dev/null"));
fprintf (stderr, "\n");
result = GNUNET_SYSERR;
GNUNET_SCHEDULER_run (&run, NULL);
GNUNET_OS_process_kill (merchantd,
SIGTERM);
GNUNET_OS_process_wait (merchantd);
GNUNET_OS_process_destroy (merchantd);
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_merchant_api.c */