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Diffstat (limited to 'src/mint/taler-mint-httpd_responses.c')
| -rw-r--r-- | src/mint/taler-mint-httpd_responses.c | 1177 |
1 files changed, 0 insertions, 1177 deletions
diff --git a/src/mint/taler-mint-httpd_responses.c b/src/mint/taler-mint-httpd_responses.c deleted file mode 100644 index 2ebd0d33..00000000 --- a/src/mint/taler-mint-httpd_responses.c +++ /dev/null @@ -1,1177 +0,0 @@ -/* - This file is part of TALER - Copyright (C) 2014, 2015, 2016 GNUnet e.V. - - TALER is free software; you can redistribute it and/or modify it under the - terms of the GNU Affero 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 Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License along with - TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/> -*/ -/** - * @file taler-mint-httpd_responses.c - * @brief API for generating the various replies of the mint; these - * functions are called TMH_RESPONSE_reply_ and they generate - * and queue MHD response objects for a given connection. - * @author Florian Dold - * @author Benedikt Mueller - * @author Christian Grothoff - */ -#include "platform.h" -#include "taler-mint-httpd_responses.h" -#include "taler_util.h" -#include <gnunet/gnunet_util_lib.h> -#include "taler-mint-httpd_keystate.h" - - -/** - * Add headers we want to return in every response. - * Useful for testing, like if we want to always close - * connections. - * - * @param response response to modify - */ -void -TMH_RESPONSE_add_global_headers (struct MHD_Response *response) -{ - if (TMH_mint_connection_close) - (void) MHD_add_response_header (response, - MHD_HTTP_HEADER_CONNECTION, - "close"); -} - - -/** - * Send JSON object as response. - * - * @param connection the MHD connection - * @param json the json object - * @param response_code the http response code - * @return MHD result code - */ -int -TMH_RESPONSE_reply_json (struct MHD_Connection *connection, - const json_t *json, - unsigned int response_code) -{ - struct MHD_Response *resp; - char *json_str; - int ret; - - json_str = json_dumps (json, JSON_INDENT(2)); - GNUNET_assert (NULL != json_str); - resp = MHD_create_response_from_buffer (strlen (json_str), json_str, - MHD_RESPMEM_MUST_FREE); - if (NULL == resp) - { - free (json_str); - GNUNET_break (0); - return MHD_NO; - } - TMH_RESPONSE_add_global_headers (resp); - (void) MHD_add_response_header (resp, - MHD_HTTP_HEADER_CONTENT_TYPE, - "application/json"); - ret = MHD_queue_response (connection, - response_code, - resp); - MHD_destroy_response (resp); - return ret; -} - - -/** - * Function to call to handle the request by building a JSON - * reply from a format string and varargs. - * - * @param connection the MHD connection to handle - * @param response_code HTTP response code to use - * @param fmt format string for pack - * @param ... varargs - * @return MHD result code - */ -int -TMH_RESPONSE_reply_json_pack (struct MHD_Connection *connection, - unsigned int response_code, - const char *fmt, - ...) -{ - json_t *json; - va_list argp; - int ret; - json_error_t jerror; - - va_start (argp, fmt); - json = json_vpack_ex (&jerror, 0, fmt, argp); - va_end (argp); - if (NULL == json) - { - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "Failed to pack JSON with format `%s': %s\n", - fmt, - jerror.text); - GNUNET_break (0); - return MHD_NO; - } - ret = TMH_RESPONSE_reply_json (connection, - json, - response_code); - json_decref (json); - return ret; -} - - -/** - * Send a response indicating an invalid argument. - * - * @param connection the MHD connection to use - * @param param_name the parameter that is invalid - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection, - const char *param_name) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_BAD_REQUEST, - "{s:s, s:s}", - "error", "invalid parameter", - "parameter", param_name); -} - - -/** - * Send a response indicating an argument refering to a - * resource unknown to the mint (i.e. unknown reserve or - * denomination key). - * - * @param connection the MHD connection to use - * @param param_name the parameter that is invalid - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection, - const char *param_name) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_NOT_FOUND, - "{s:s, s:s}", - "error", "unknown entity referenced", - "parameter", param_name); -} - - -/** - * Send a response indicating an invalid signature. - * - * @param connection the MHD connection to use - * @param param_name the parameter that is invalid - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection, - const char *param_name) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_UNAUTHORIZED, - "{s:s, s:s}", - "error", "invalid signature", - "parameter", param_name); -} - - -/** - * Send a response indicating a missing argument. - * - * @param connection the MHD connection to use - * @param param_name the parameter that is missing - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection, - const char *param_name) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_BAD_REQUEST, - "{ s:s, s:s}", - "error", "missing parameter", - "parameter", param_name); -} - - -/** - * Send a response indicating permission denied. - * - * @param connection the MHD connection to use - * @param hint hint about why access was denied - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_permission_denied (struct MHD_Connection *connection, - const char *hint) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_FORBIDDEN, - "{s:s, s:s}", - "error", "permission denied", - "hint", hint); -} - - -/** - * Send a response indicating an internal error. - * - * @param connection the MHD connection to use - * @param hint hint about the internal error's nature - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_internal_error (struct MHD_Connection *connection, - const char *hint) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_INTERNAL_SERVER_ERROR, - "{s:s, s:s}", - "error", "internal error", - "hint", hint); -} - - -/** - * Send a response indicating an external error. - * - * @param connection the MHD connection to use - * @param hint hint about the error's nature - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_external_error (struct MHD_Connection *connection, - const char *hint) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_BAD_REQUEST, - "{s:s, s:s}", - "error", "client error", - "hint", hint); -} - - -/** - * Send a response indicating an error committing a - * transaction (concurrent interference). - * - * @param connection the MHD connection to use - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_commit_error (struct MHD_Connection *connection) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_BAD_REQUEST, - "{s:s}", - "error", "commit failure"); -} - - -/** - * Send a response indicating a failure to talk to the Mint's - * database. - * - * @param connection the MHD connection to use - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection) -{ - return TMH_RESPONSE_reply_internal_error (connection, - "Failed to connect to database"); -} - - -/** - * Send a response indicating that the request was too big. - * - * @param connection the MHD connection to use - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection) -{ - struct MHD_Response *resp; - int ret; - - resp = MHD_create_response_from_buffer (0, - NULL, - MHD_RESPMEM_PERSISTENT); - if (NULL == resp) - return MHD_NO; - TMH_RESPONSE_add_global_headers (resp); - ret = MHD_queue_response (connection, - MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, - resp); - MHD_destroy_response (resp); - return ret; -} - - -/** - * Send a response indicating that the JSON was malformed. - * - * @param connection the MHD connection to use - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_invalid_json (struct MHD_Connection *connection) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_BAD_REQUEST, - "{s:s}", - "error", - "invalid json"); -} - - -/** - * Send confirmation of deposit success to client. This function - * will create a signed message affirming the given information - * and return it to the client. By this, the mint affirms that - * the coin had sufficient (residual) value for the specified - * transaction and that it will execute the requested deposit - * operation with the given wiring details. - * - * @param connection connection to the client - * @param coin_pub public key of the coin - * @param h_wire hash of wire details - * @param h_contract hash of contract details - * @param transaction_id transaction ID - * @param timestamp client's timestamp - * @param refund_deadline until when this deposit be refunded - * @param merchant merchant public key - * @param amount_without_fee fraction of coin value to deposit, without the fee - * @return MHD result code - */ -int -TMH_RESPONSE_reply_deposit_success (struct MHD_Connection *connection, - const struct TALER_CoinSpendPublicKeyP *coin_pub, - const struct GNUNET_HashCode *h_wire, - const struct GNUNET_HashCode *h_contract, - uint64_t transaction_id, - struct GNUNET_TIME_Absolute timestamp, - struct GNUNET_TIME_Absolute refund_deadline, - const struct TALER_MerchantPublicKeyP *merchant, - const struct TALER_Amount *amount_without_fee) -{ - struct TALER_DepositConfirmationPS dc; - struct TALER_MintPublicKeyP pub; - struct TALER_MintSignatureP sig; - - dc.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_DEPOSIT); - dc.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS)); - dc.h_contract = *h_contract; - dc.h_wire = *h_wire; - dc.transaction_id = GNUNET_htonll (transaction_id); - dc.timestamp = GNUNET_TIME_absolute_hton (timestamp); - dc.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline); - TALER_amount_hton (&dc.amount_without_fee, - amount_without_fee); - dc.coin_pub = *coin_pub; - dc.merchant = *merchant; - TMH_KS_sign (&dc.purpose, - &pub, - &sig); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_OK, - "{s:s, s:o, s:o}", - "status", "DEPOSIT_OK", - "sig", TALER_json_from_data (&sig, - sizeof (sig)), - "pub", TALER_json_from_data (&pub, - sizeof (pub))); -} - - -/** - * Compile the transaction history of a coin into a JSON object. - * - * @param tl transaction history to JSON-ify - * @return json representation of the @a rh - */ -static json_t * -compile_transaction_history (const struct TALER_MINTDB_TransactionList *tl) -{ - json_t *details; - const char *type; - struct TALER_Amount value; - json_t *history; - const struct TALER_CoinSpendSignatureP *sig; - const struct TALER_MINTDB_TransactionList *pos; - - history = json_array (); - for (pos = tl; NULL != pos; pos = pos->next) - { - switch (pos->type) - { - case TALER_MINTDB_TT_DEPOSIT: - { - struct TALER_DepositRequestPS dr; - const struct TALER_MINTDB_Deposit *deposit = pos->details.deposit; - - type = "DEPOSIT"; - value = deposit->amount_with_fee; - dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT); - dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS)); - dr.h_contract = deposit->h_contract; - dr.h_wire = deposit->h_wire; - dr.timestamp = GNUNET_TIME_absolute_hton (deposit->timestamp); - dr.refund_deadline = GNUNET_TIME_absolute_hton (deposit->refund_deadline); - dr.transaction_id = GNUNET_htonll (deposit->transaction_id); - TALER_amount_hton (&dr.amount_with_fee, - &deposit->amount_with_fee); - TALER_amount_hton (&dr.deposit_fee, - &deposit->deposit_fee); - dr.merchant = deposit->merchant_pub; - dr.coin_pub = deposit->coin.coin_pub; - sig = &deposit->csig; - /* internal sanity check before we hand out a bogus sig... */ - if (GNUNET_OK != - GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT, - &dr.purpose, - &sig->eddsa_signature, - &deposit->coin.coin_pub.eddsa_pub)) - { - GNUNET_break (0); - json_decref (history); - return NULL; - } - - details = TALER_json_from_data (&dr.purpose, - sizeof (struct TALER_DepositRequestPS)); - break; - } - case TALER_MINTDB_TT_REFRESH_MELT: - { - struct TALER_RefreshMeltCoinAffirmationPS ms; - const struct TALER_MINTDB_RefreshMelt *melt = pos->details.melt; - - type = "MELT"; - value = melt->amount_with_fee; - ms.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT); - ms.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS)); - ms.session_hash = melt->session_hash; - TALER_amount_hton (&ms.amount_with_fee, - &melt->amount_with_fee); - TALER_amount_hton (&ms.melt_fee, - &melt->melt_fee); - ms.coin_pub = melt->coin.coin_pub; - sig = &melt->coin_sig; - /* internal sanity check before we hand out a bogus sig... */ - if (GNUNET_OK != - GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT, - &ms.purpose, - &sig->eddsa_signature, - &melt->coin.coin_pub.eddsa_pub)) - { - GNUNET_break (0); - json_decref (history); - return NULL; - } - - details = TALER_json_from_data (&ms.purpose, - sizeof (struct TALER_RefreshMeltCoinAffirmationPS)); - } - break; - default: - GNUNET_assert (0); - } - json_array_append_new (history, - json_pack ("{s:s, s:o, s:o, s:o}", - "type", type, - "amount", TALER_json_from_amount (&value), - "signature", TALER_json_from_data (sig, - sizeof (struct TALER_CoinSpendSignatureP)), - "details", details)); - } - return history; -} - - -/** - * Send proof that a /deposit request is invalid to client. This - * function will create a message with all of the operations affecting - * the coin that demonstrate that the coin has insufficient value. - * - * @param connection connection to the client - * @param tl transaction list to use to build reply - * @return MHD result code - */ -int -TMH_RESPONSE_reply_deposit_insufficient_funds (struct MHD_Connection *connection, - const struct TALER_MINTDB_TransactionList *tl) -{ - json_t *history; - - history = compile_transaction_history (tl); - if (NULL == history) - return TMH_RESPONSE_reply_internal_db_error (connection); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_FORBIDDEN, - "{s:s, s:o}", - "error", "insufficient funds", - "history", history); -} - - -/** - * Compile the history of a reserve into a JSON object - * and calculate the total balance. - * - * @param rh reserve history to JSON-ify - * @param[out] balance set to current reserve balance - * @return json representation of the @a rh, NULL on error - */ -static json_t * -compile_reserve_history (const struct TALER_MINTDB_ReserveHistory *rh, - struct TALER_Amount *balance) -{ - struct TALER_Amount deposit_total; - struct TALER_Amount withdraw_total; - struct TALER_Amount value; - json_t *json_history; - int ret; - const struct TALER_MINTDB_ReserveHistory *pos; - struct TALER_WithdrawRequestPS wr; - - json_history = json_array (); - ret = 0; - for (pos = rh; NULL != pos; pos = pos->next) - { - switch (pos->type) - { - case TALER_MINTDB_RO_BANK_TO_MINT: - if (0 == ret) - deposit_total = pos->details.bank->amount; - else - if (GNUNET_OK != - TALER_amount_add (&deposit_total, - &deposit_total, - &pos->details.bank->amount)) - { - json_decref (json_history); - return NULL; - } - ret = 1; - json_array_append_new (json_history, - json_pack ("{s:s, s:O, s:o}", - "type", "DEPOSIT", - "wire", pos->details.bank->wire, - "amount", TALER_json_from_amount (&pos->details.bank->amount))); - break; - case TALER_MINTDB_RO_WITHDRAW_COIN: - break; - } - } - - ret = 0; - for (pos = rh; NULL != pos; pos = pos->next) - { - switch (pos->type) - { - case TALER_MINTDB_RO_BANK_TO_MINT: - break; - case TALER_MINTDB_RO_WITHDRAW_COIN: - value = pos->details.withdraw->amount_with_fee; - if (0 == ret) - { - withdraw_total = value; - } - else - { - if (GNUNET_OK != - TALER_amount_add (&withdraw_total, - &withdraw_total, - &value)) - { - json_decref (json_history); - return NULL; - } - } - ret = 1; - wr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW); - wr.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS)); - wr.reserve_pub = pos->details.withdraw->reserve_pub; - TALER_amount_hton (&wr.amount_with_fee, - &value); - TALER_amount_hton (&wr.withdraw_fee, - &pos->details.withdraw->withdraw_fee); - GNUNET_CRYPTO_rsa_public_key_hash (pos->details.withdraw->denom_pub.rsa_public_key, - &wr.h_denomination_pub); - wr.h_coin_envelope = pos->details.withdraw->h_coin_envelope; - json_array_append_new (json_history, - json_pack ("{s:s, s:o, s:o, s:o}", - "type", "WITHDRAW", - "signature", TALER_json_from_data (&pos->details.withdraw->reserve_sig, - sizeof (struct TALER_ReserveSignatureP)), - "details", TALER_json_from_data (&wr, - sizeof (wr)), - "amount", TALER_json_from_amount (&value))); - break; - } - } - if (0 == ret) - { - /* did not encounter any withdraw operations, set to zero */ - TALER_amount_get_zero (deposit_total.currency, - &withdraw_total); - } - if (GNUNET_SYSERR == - TALER_amount_subtract (balance, - &deposit_total, - &withdraw_total)) - { - GNUNET_break (0); - json_decref (json_history); - return NULL; - } - - return json_history; -} - - -/** - * Send reserve status information to client. - * - * @param connection connection to the client - * @param rh reserve history to return - * @return MHD result code - */ -int -TMH_RESPONSE_reply_reserve_status_success (struct MHD_Connection *connection, - const struct TALER_MINTDB_ReserveHistory *rh) -{ - json_t *json_balance; - json_t *json_history; - struct TALER_Amount balance; - - json_history = compile_reserve_history (rh, - &balance); - if (NULL == json_history) - return TMH_RESPONSE_reply_internal_error (connection, - "balance calculation failure"); - json_balance = TALER_json_from_amount (&balance); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_OK, - "{s:o, s:o}", - "balance", json_balance, - "history", json_history); -} - - -/** - * Send reserve status information to client with the - * message that we have insufficient funds for the - * requested /reserve/withdraw operation. - * - * @param connection connection to the client - * @param rh reserve history to return - * @return MHD result code - */ -int -TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (struct MHD_Connection *connection, - const struct TALER_MINTDB_ReserveHistory *rh) -{ - json_t *json_balance; - json_t *json_history; - struct TALER_Amount balance; - - json_history = compile_reserve_history (rh, - &balance); - if (NULL == json_history) - return TMH_RESPONSE_reply_internal_error (connection, - "balance calculation failure"); - json_balance = TALER_json_from_amount (&balance); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_PAYMENT_REQUIRED, - "{s:s, s:o, s:o}", - "error", "Insufficient funds", - "balance", json_balance, - "history", json_history); -} - - -/** - * Send blinded coin information to client. - * - * @param connection connection to the client - * @param collectable blinded coin to return - * @return MHD result code - */ -int -TMH_RESPONSE_reply_reserve_withdraw_success (struct MHD_Connection *connection, - const struct TALER_MINTDB_CollectableBlindcoin *collectable) -{ - json_t *sig_json; - - sig_json = TALER_json_from_rsa_signature (collectable->sig.rsa_signature); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_OK, - "{s:o}", - "ev_sig", sig_json); -} - - -/** - * Send a response for a failed "/refresh/melt" request. The - * transaction history of the given coin demonstrates that the - * @a residual value of the coin is below the @a requested - * contribution of the coin for the melt. Thus, the mint - * refuses the melt operation. - * - * @param connection the connection to send the response to - * @param coin_pub public key of the coin - * @param coin_value original value of the coin - * @param tl transaction history for the coin - * @param requested how much this coin was supposed to contribute, including fee - * @param residual remaining value of the coin (after subtracting @a tl) - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_refresh_melt_insufficient_funds (struct MHD_Connection *connection, - const struct TALER_CoinSpendPublicKeyP *coin_pub, - struct TALER_Amount coin_value, - struct TALER_MINTDB_TransactionList *tl, - struct TALER_Amount requested, - struct TALER_Amount residual) -{ - json_t *history; - - history = compile_transaction_history (tl); - if (NULL == history) - return TMH_RESPONSE_reply_internal_db_error (connection); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_FORBIDDEN, - "{s:s, s:o, s:o, s:o, s:o, s:o}", - "error", - "insufficient funds", - "coin_pub", - TALER_json_from_data (coin_pub, - sizeof (struct TALER_CoinSpendPublicKeyP)), - "original_value", - TALER_json_from_amount (&coin_value), - "residual_value", - TALER_json_from_amount (&residual), - "requested_value", - TALER_json_from_amount (&requested), - "history", - history); -} - - -/** - * Send a response to a "/refresh/melt" request. - * - * @param connection the connection to send the response to - * @param session_hash hash of the refresh session - * @param noreveal_index which index will the client not have to reveal - * @return a MHD status code - */ -int -TMH_RESPONSE_reply_refresh_melt_success (struct MHD_Connection *connection, - const struct GNUNET_HashCode *session_hash, - uint16_t noreveal_index) -{ - struct TALER_RefreshMeltConfirmationPS body; - struct TALER_MintPublicKeyP pub; - struct TALER_MintSignatureP sig; - json_t *sig_json; - - body.purpose.size = htonl (sizeof (struct TALER_RefreshMeltConfirmationPS)); - body.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_MELT); - body.session_hash = *session_hash; - body.noreveal_index = htons (noreveal_index); - body.reserved = htons (0); - TMH_KS_sign (&body.purpose, - &pub, - &sig); - sig_json = TALER_json_from_data (&sig, - sizeof (sig)); - GNUNET_assert (NULL != sig_json); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_OK, - "{s:i, s:o, s:o}", - "noreveal_index", (int) noreveal_index, - "mint_sig", sig_json, - "mint_pub", TALER_json_from_data (&pub, - sizeof (pub))); -} - - -/** - * Send a response for "/refresh/reveal". - * - * @param connection the connection to send the response to - * @param num_newcoins number of new coins for which we reveal data - * @param sigs array of @a num_newcoins signatures revealed - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_refresh_reveal_success (struct MHD_Connection *connection, - unsigned int num_newcoins, - const struct TALER_DenominationSignature *sigs) -{ - int newcoin_index; - json_t *root; - json_t *obj; - json_t *list; - int ret; - - list = json_array (); - for (newcoin_index = 0; newcoin_index < num_newcoins; newcoin_index++) - { - obj = json_object (); - json_object_set_new (obj, - "ev_sig", - TALER_json_from_rsa_signature (sigs[newcoin_index].rsa_signature)); - json_array_append_new (list, - obj); - } - root = json_object (); - json_object_set_new (root, - "ev_sigs", - list); - ret = TMH_RESPONSE_reply_json (connection, - root, - MHD_HTTP_OK); - json_decref (root); - return ret; -} - - -/** - * Send a response for a failed "/refresh/reveal", where the - * revealed value(s) do not match the original commitment. - * - * @param connection the connection to send the response to - * @param mc all information about the original commitment - * @param off offset in the array of kappa-commitments where - * the missmatch was detected - * @param j index of the coin for which the missmatch was - * detected - * @param missmatch_object name of the object that was - * bogus (i.e. "transfer key"). - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_refresh_reveal_missmatch (struct MHD_Connection *connection, - const struct TALER_MINTDB_MeltCommitment *mc, - unsigned int off, - unsigned int j, - const char *missmatch_object) -{ - json_t *info_old; - json_t *info_new; - json_t *info_commit; - json_t *info_links; - unsigned int i; - unsigned int k; - - info_old = json_array (); - for (i=0;i<mc->num_oldcoins;i++) - { - const struct TALER_MINTDB_RefreshMelt *rm; - json_t *rm_json; - - rm = &mc->melts[i]; - rm_json = json_object (); - json_object_set_new (rm_json, - "coin_sig", - TALER_json_from_data (&rm->coin_sig, - sizeof (struct TALER_CoinSpendSignatureP))); - json_object_set_new (rm_json, - "coin_pub", - TALER_json_from_data (&rm->coin.coin_pub, - sizeof (struct TALER_CoinSpendPublicKeyP))); - json_object_set_new (rm_json, - "melt_amount_with_fee", - TALER_json_from_amount (&rm->amount_with_fee)); - json_object_set_new (rm_json, - "melt_fee", - TALER_json_from_amount (&rm->melt_fee)); - json_array_append_new (info_old, - rm_json); - } - info_new = json_array (); - for (i=0;i<mc->num_newcoins;i++) - { - const struct TALER_DenominationPublicKey *pk; - - pk = &mc->denom_pubs[i]; - json_array_append_new (info_new, - TALER_json_from_rsa_public_key (pk->rsa_public_key)); - - } - info_commit = json_array (); - info_links = json_array (); - for (k=0;k<TALER_CNC_KAPPA;k++) - { - json_t *info_commit_k; - json_t *info_link_k; - - info_commit_k = json_array (); - for (i=0;i<mc->num_newcoins;i++) - { - const struct TALER_MINTDB_RefreshCommitCoin *cc; - json_t *cc_json; - - cc = &mc->commit_coins[k][i]; - cc_json = json_object (); - json_object_set_new (cc_json, - "coin_ev", - TALER_json_from_data (cc->coin_ev, - cc->coin_ev_size)); - json_object_set_new (cc_json, - "coin_priv_enc", - TALER_json_from_data (cc->refresh_link->coin_priv_enc, - sizeof (struct TALER_CoinSpendPrivateKeyP))); - json_object_set_new (cc_json, - "blinding_key_enc", - TALER_json_from_data (cc->refresh_link->blinding_key_enc, - cc->refresh_link->blinding_key_enc_size)); - - json_array_append_new (info_commit_k, - cc_json); - } - json_array_append_new (info_commit, - info_commit_k); - info_link_k = json_array (); - for (i=0;i<mc->num_oldcoins;i++) - { - const struct TALER_RefreshCommitLinkP *cl; - json_t *cl_json; - - cl = &mc->commit_links[k][i]; - cl_json = json_object (); - json_object_set_new (cl_json, - "transfer_pub", - TALER_json_from_data (&cl->transfer_pub, - sizeof (struct TALER_TransferPublicKeyP))); - json_object_set_new (cl_json, - "shared_secret_enc", - TALER_json_from_data (&cl->shared_secret_enc, - sizeof (struct TALER_EncryptedLinkSecretP))); - json_array_append_new (info_link_k, - cl_json); - } - json_array_append_new (info_links, - info_link_k); - } - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_CONFLICT, - "{s:s, s:i, s:i, s:o, s:o, s:o, s:o, s:s}", - "error", "commitment violation", - "offset", (int) off, - "index", (int) j, - "oldcoin_infos", info_old, - "newcoin_infos", info_new, - "commit_infos", info_commit, - "link_infos", info_links, - "object", missmatch_object); -} - - -/** - * Send a response for "/refresh/link". - * - * @param connection the connection to send the response to - * @param num_sessions number of sessions the coin was used in - * @param sessions array of @a num_session entries with - * information for each session - * @return a MHD result code - */ -int -TMH_RESPONSE_reply_refresh_link_success (struct MHD_Connection *connection, - unsigned int num_sessions, - const struct TMH_RESPONSE_LinkSessionInfo *sessions) -{ - json_t *root; - json_t *mlist; - int res; - unsigned int i; - - mlist = json_array (); - for (i=0;i<num_sessions;i++) - { - const struct TALER_MINTDB_LinkDataList *pos; - json_t *list = json_array (); - - for (pos = sessions[i].ldl; NULL != pos; pos = pos->next) - { - json_t *obj; - - obj = json_object (); - json_object_set_new (obj, - "link_enc", - TALER_json_from_data (pos->link_data_enc->coin_priv_enc, - sizeof (struct TALER_CoinSpendPrivateKeyP) + - pos->link_data_enc->blinding_key_enc_size)); - json_object_set_new (obj, - "denom_pub", - TALER_json_from_rsa_public_key (pos->denom_pub.rsa_public_key)); - json_object_set_new (obj, - "ev_sig", - TALER_json_from_rsa_signature (pos->ev_sig.rsa_signature)); - json_array_append_new (list, - obj); - } - root = json_object (); - json_object_set_new (root, - "new_coins", - list); - json_object_set_new (root, - "transfer_pub", - TALER_json_from_data (&sessions[i].transfer_pub, - sizeof (struct TALER_TransferPublicKeyP))); - json_object_set_new (root, - "secret_enc", - TALER_json_from_data (&sessions[i].shared_secret_enc, - sizeof (struct TALER_EncryptedLinkSecretP))); - json_array_append_new (mlist, - root); - } - res = TMH_RESPONSE_reply_json (connection, - mlist, - MHD_HTTP_OK); - json_decref (mlist); - return res; -} - - -/** - * A merchant asked for details about a deposit, but - * we do not know anything about the deposit. Generate the - * 404 reply. - * - * @param connection connection to the client - * @return MHD result code - */ -int -TMH_RESPONSE_reply_deposit_unknown (struct MHD_Connection *connection) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_NOT_FOUND, - "{s:s}", - "error", "Deposit unknown"); -} - - -/** - * A merchant asked for details about a deposit, but - * we did not execute the deposit yet. Generate a 202 reply. - * - * @param connection connection to the client - * @param planned_exec_time planned execution time - * @return MHD result code - */ -int -TMH_RESPONSE_reply_deposit_pending (struct MHD_Connection *connection, - struct GNUNET_TIME_Absolute planned_exec_time) -{ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_ACCEPTED, - "{s:o}", - "execution_time", TALER_json_from_abs (planned_exec_time)); -} - - -/** - * A merchant asked for details about a deposit. Provide - * them. Generates the 200 reply. - * - * @param connection connection to the client - * @param h_contract hash of the contract - * @param h_wire hash of wire account details - * @param coin_pub public key of the coin - * @param coin_contribution how much did the coin we asked about - * contribute to the total transfer value? (deposit value minus fee) - * @param transaction_id merchant transaction identifier - * @param wtid raw wire transfer identifier - * @param exec_time execution time of the wire transfer - * @return MHD result code - */ -int -TMH_RESPONSE_reply_deposit_wtid (struct MHD_Connection *connection, - const struct GNUNET_HashCode *h_contract, - const struct GNUNET_HashCode *h_wire, - const struct TALER_CoinSpendPublicKeyP *coin_pub, - const struct TALER_Amount *coin_contribution, - uint64_t transaction_id, - const struct TALER_WireTransferIdentifierRawP *wtid, - struct GNUNET_TIME_Absolute exec_time) -{ - struct TALER_ConfirmWirePS cw; - struct TALER_MintPublicKeyP pub; - struct TALER_MintSignatureP sig; - - cw.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_WIRE); - cw.purpose.size = htonl (sizeof (struct TALER_ConfirmWirePS)); - cw.h_wire = *h_wire; - cw.h_contract = *h_contract; - cw.wtid = *wtid; - cw.coin_pub = *coin_pub; - cw.transaction_id = GNUNET_htonll (transaction_id); - cw.execution_time = GNUNET_TIME_absolute_hton (exec_time); - TALER_amount_hton (&cw.coin_contribution, - coin_contribution); - TMH_KS_sign (&cw.purpose, - &pub, - &sig); - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_OK, - "{s:o, s:o, s:o, s:o, s:o, s:o}", - "wtid", TALER_json_from_data (wtid, - sizeof (*wtid)), - "execution_time", TALER_json_from_abs (exec_time), - "coin_contribution", TALER_json_from_amount (coin_contribution), - "mint_sig", TALER_json_from_data (&sig, - sizeof (sig)), - "mint_pub", TALER_json_from_data (&pub, - sizeof (pub))); -} - - -/** - * A merchant asked for transaction details about a wire transfer. - * Provide them. Generates the 200 reply. - * - * @param connection connection to the client - * @param total total amount that was transferred - * @param merchant_pub public key of the merchant - * @param h_wire destination account - * @param deposits details about the combined deposits - * @return MHD result code - */ -int -TMH_RESPONSE_reply_wire_deposit_details (struct MHD_Connection *connection, - const struct TALER_Amount *total, - const struct TALER_MerchantPublicKeyP *merchant_pub, - const struct GNUNET_HashCode *h_wire, - json_t *deposits) -{ - /* FIXME: #4135: signing not implemented here */ - return TMH_RESPONSE_reply_json_pack (connection, - MHD_HTTP_OK, - "{s:o, s:o, s:o, s:o}", - "total", TALER_json_from_amount (total), - "merchant_pub", TALER_json_from_data (merchant_pub, - sizeof (struct TALER_MerchantPublicKeyP)), - "h_wire", TALER_json_from_data (h_wire, - sizeof (struct GNUNET_HashCode)), - "deposits", deposits); -} - - -/* end of taler-mint-httpd_responses.c */ |