aboutsummaryrefslogtreecommitdiff
path: root/src/mint-lib/mint_api_deposit_wtid.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mint-lib/mint_api_deposit_wtid.c')
-rw-r--r--src/mint-lib/mint_api_deposit_wtid.c379
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 */