diff options
Diffstat (limited to 'src/mint-lib/mint_api_deposit_wtid.c')
| -rw-r--r-- | src/mint-lib/mint_api_deposit_wtid.c | 379 |
1 files changed, 0 insertions, 379 deletions
diff --git a/src/mint-lib/mint_api_deposit_wtid.c b/src/mint-lib/mint_api_deposit_wtid.c deleted file mode 100644 index d29f406e3..000000000 --- a/src/mint-lib/mint_api_deposit_wtid.c +++ /dev/null @@ -1,379 +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 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 - <http://www.gnu.org/licenses/> -*/ -/** - * @file mint-lib/mint_api_deposit_wtid.c - * @brief Implementation of the /deposit/wtid request of the mint's HTTP API - * @author Christian Grothoff - */ -#include "platform.h" -#include <curl/curl.h> -#include <jansson.h> -#include <microhttpd.h> /* just for HTTP status codes */ -#include <gnunet/gnunet_util_lib.h> -#include "taler_mint_service.h" -#include "mint_api_common.h" -#include "mint_api_json.h" -#include "mint_api_context.h" -#include "mint_api_handle.h" -#include "taler_signatures.h" - - -/** - * @brief A Deposit Wtid Handle - */ -struct TALER_MINT_DepositWtidHandle -{ - - /** - * The connection to mint this request handle will use - */ - struct TALER_MINT_Handle *mint; - - /** - * The url for this request. - */ - char *url; - - /** - * JSON encoding of the request to POST. - */ - char *json_enc; - - /** - * Handle for the request. - */ - struct MAC_Job *job; - - /** - * Function to call with the result. - */ - TALER_MINT_DepositWtidCallback cb; - - /** - * Closure for @a cb. - */ - void *cb_cls; - - /** - * Download buffer - */ - struct MAC_DownloadBuffer db; - - /** - * Information the mint should sign in response. - * (with pre-filled fields from the request). - */ - struct TALER_ConfirmWirePS depconf; - -}; - - -/** - * Verify that the signature on the "200 OK" response - * from the mint is valid. - * - * @param dwh deposit wtid handle - * @param json json reply with the signature - * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not - */ -static int -verify_deposit_wtid_signature_ok (const struct TALER_MINT_DepositWtidHandle *dwh, - json_t *json) -{ - struct TALER_MintSignatureP mint_sig; - struct TALER_MintPublicKeyP mint_pub; - const struct TALER_MINT_Keys *key_state; - struct MAJ_Specification spec[] = { - MAJ_spec_fixed_auto ("mint_sig", &mint_sig), - MAJ_spec_fixed_auto ("mint_pub", &mint_pub), - MAJ_spec_end - }; - - if (GNUNET_OK != - MAJ_parse_json (json, - spec)) - { - GNUNET_break_op (0); - return GNUNET_SYSERR; - } - key_state = TALER_MINT_get_keys (dwh->mint); - if (GNUNET_OK != - TALER_MINT_test_signing_key (key_state, - &mint_pub)) - { - GNUNET_break_op (0); - return GNUNET_SYSERR; - } - if (GNUNET_OK != - GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MINT_CONFIRM_WIRE, - &dwh->depconf.purpose, - &mint_sig.eddsa_signature, - &mint_pub.eddsa_pub)) - { - GNUNET_break_op (0); - return GNUNET_SYSERR; - } - return GNUNET_OK; -} - - -/** - * Function called when we're done processing the - * HTTP /deposit/wtid request. - * - * @param cls the `struct TALER_MINT_DepositWtidHandle` - * @param eh the curl request handle - */ -static void -handle_deposit_wtid_finished (void *cls, - CURL *eh) -{ - struct TALER_MINT_DepositWtidHandle *dwh = cls; - long response_code; - json_t *json; - const struct TALER_WireTransferIdentifierRawP *wtid = NULL; - struct GNUNET_TIME_Absolute execution_time = GNUNET_TIME_UNIT_FOREVER_ABS; - const struct TALER_Amount *coin_contribution = NULL; - struct TALER_Amount coin_contribution_s; - - dwh->job = NULL; - json = MAC_download_get_result (&dwh->db, - eh, - &response_code); - switch (response_code) - { - case 0: - break; - case MHD_HTTP_OK: - { - struct MAJ_Specification spec[] = { - MAJ_spec_fixed_auto ("wtid", &dwh->depconf.wtid), - MAJ_spec_absolute_time ("execution_time", &execution_time), - MAJ_spec_amount ("coin_contribution", &coin_contribution_s), - MAJ_spec_end - }; - - if (GNUNET_OK != - MAJ_parse_json (json, - spec)) - { - GNUNET_break_op (0); - response_code = 0; - break; - } - wtid = &dwh->depconf.wtid; - dwh->depconf.execution_time = GNUNET_TIME_absolute_hton (execution_time); - TALER_amount_hton (&dwh->depconf.coin_contribution, - &coin_contribution_s); - coin_contribution = &coin_contribution_s; - if (GNUNET_OK != - verify_deposit_wtid_signature_ok (dwh, - json)) - { - GNUNET_break_op (0); - response_code = 0; - } - } - break; - case MHD_HTTP_ACCEPTED: - { - /* Transaction known, but not executed yet */ - struct MAJ_Specification spec[] = { - MAJ_spec_absolute_time ("execution_time", &execution_time), - MAJ_spec_end - }; - - if (GNUNET_OK != - MAJ_parse_json (json, - spec)) - { - GNUNET_break_op (0); - response_code = 0; - break; - } - } - break; - case MHD_HTTP_BAD_REQUEST: - /* This should never happen, either us or the mint is buggy - (or API version conflict); just pass JSON reply to the application */ - break; - case MHD_HTTP_UNAUTHORIZED: - /* Nothing really to verify, mint says one of the signatures is - invalid; as we checked them, this should never happen, we - should pass the JSON reply to the application */ - break; - case MHD_HTTP_NOT_FOUND: - /* Mint does not know about transaction; - we should pass the reply to the application */ - break; - case MHD_HTTP_INTERNAL_SERVER_ERROR: - /* Server had an internal issue; we should retry, but this API - leaves this to the application */ - break; - default: - /* unexpected response code */ - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "Unexpected response code %u\n", - response_code); - GNUNET_break (0); - response_code = 0; - break; - } - dwh->cb (dwh->cb_cls, - response_code, - json, - wtid, - execution_time, - coin_contribution); - json_decref (json); - TALER_MINT_deposit_wtid_cancel (dwh); -} - - -/** - * Obtain wire transfer details about an existing deposit operation. - * - * @param mint the mint to query - * @param merchant_priv the merchant's private key - * @param h_wire hash of merchant's wire transfer details - * @param h_contract hash of the contract - * @param coin_pub public key of the coin - * @param transaction_id transaction identifier - * @param cb function to call with the result - * @param cb_cls closure for @a cb - * @return handle to abort request - */ -struct TALER_MINT_DepositWtidHandle * -TALER_MINT_deposit_wtid (struct TALER_MINT_Handle *mint, - const struct TALER_MerchantPrivateKeyP *merchant_priv, - const struct GNUNET_HashCode *h_wire, - const struct GNUNET_HashCode *h_contract, - const struct TALER_CoinSpendPublicKeyP *coin_pub, - uint64_t transaction_id, - TALER_MINT_DepositWtidCallback cb, - void *cb_cls) -{ - struct TALER_DepositTrackPS dtp; - struct TALER_MerchantSignatureP merchant_sig; - struct TALER_MINT_DepositWtidHandle *dwh; - struct TALER_MINT_Context *ctx; - json_t *deposit_wtid_obj; - CURL *eh; - - if (GNUNET_YES != - MAH_handle_is_ready (mint)) - { - GNUNET_break (0); - return NULL; - } - dtp.purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID); - dtp.purpose.size = htonl (sizeof (dtp)); - dtp.h_contract = *h_contract; - dtp.h_wire = *h_wire; - dtp.transaction_id = GNUNET_htonll (transaction_id); - GNUNET_CRYPTO_eddsa_key_get_public (&merchant_priv->eddsa_priv, - &dtp.merchant.eddsa_pub); - - dtp.coin_pub = *coin_pub; - GNUNET_assert (GNUNET_OK == - GNUNET_CRYPTO_eddsa_sign (&merchant_priv->eddsa_priv, - &dtp.purpose, - &merchant_sig.eddsa_sig)); - deposit_wtid_obj = json_pack ("{s:o, s:o," /* H_wire, H_contract */ - " s:o, s:I," /* coin_pub, transaction_id */ - " s:o, s:o}", /* merchant_pub, merchant_sig */ - "H_wire", TALER_json_from_data (h_wire, - sizeof (struct GNUNET_HashCode)), - "H_contract", TALER_json_from_data (h_contract, - sizeof (struct GNUNET_HashCode)), - "coin_pub", TALER_json_from_data (coin_pub, - sizeof (*coin_pub)), - "transaction_id", (json_int_t) transaction_id, - "merchant_pub", TALER_json_from_data (&dtp.merchant, - sizeof (struct TALER_MerchantPublicKeyP)), - "merchant_sig", TALER_json_from_data (&merchant_sig, - sizeof (merchant_sig))); - - dwh = GNUNET_new (struct TALER_MINT_DepositWtidHandle); - dwh->mint = mint; - dwh->cb = cb; - dwh->cb_cls = cb_cls; - dwh->url = MAH_path_to_url (mint, "/deposit/wtid"); - dwh->depconf.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS)); - dwh->depconf.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_WIRE); - dwh->depconf.h_wire = *h_wire; - dwh->depconf.h_contract = *h_contract; - dwh->depconf.coin_pub = *coin_pub; - dwh->depconf.transaction_id = GNUNET_htonll (transaction_id); - - eh = curl_easy_init (); - GNUNET_assert (NULL != (dwh->json_enc = - json_dumps (deposit_wtid_obj, - JSON_COMPACT))); - json_decref (deposit_wtid_obj); - GNUNET_assert (CURLE_OK == - curl_easy_setopt (eh, - CURLOPT_URL, - dwh->url)); - GNUNET_assert (CURLE_OK == - curl_easy_setopt (eh, - CURLOPT_POSTFIELDS, - dwh->json_enc)); - GNUNET_assert (CURLE_OK == - curl_easy_setopt (eh, - CURLOPT_POSTFIELDSIZE, - strlen (dwh->json_enc))); - GNUNET_assert (CURLE_OK == - curl_easy_setopt (eh, - CURLOPT_WRITEFUNCTION, - &MAC_download_cb)); - GNUNET_assert (CURLE_OK == - curl_easy_setopt (eh, - CURLOPT_WRITEDATA, - &dwh->db)); - ctx = MAH_handle_to_context (mint); - dwh->job = MAC_job_add (ctx, - eh, - GNUNET_YES, - &handle_deposit_wtid_finished, - dwh); - return dwh; -} - - -/** - * Cancel deposit wtid request. This function cannot be used on a request - * handle if a response is already served for it. - * - * @param dwh the wire deposits request handle - */ -void -TALER_MINT_deposit_wtid_cancel (struct TALER_MINT_DepositWtidHandle *dwh) -{ - if (NULL != dwh->job) - { - MAC_job_cancel (dwh->job); - dwh->job = NULL; - } - GNUNET_free_non_null (dwh->db.buf); - GNUNET_free (dwh->url); - GNUNET_free (dwh->json_enc); - GNUNET_free (dwh); -} - - -/* end of mint_api_deposit_wtid.c */ |