tip -> reward

1 files changed, 0 insertions, 440 deletions

diff --git a/src/lib/merchant_api_tip_pickup.c b/src/lib/merchant_api_tip_pickup.c
deleted file mode 100644
index eb0e3fb3..00000000
--- a/src/lib/merchant_api_tip_pickup.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014-2022 Taler Systems SA
-
-  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, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file merchant_api_tip_pickup.c
- * @brief Implementation of the /tip-pickup request of the merchant's HTTP API
- * @author Marcello Stanisci
- * @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 <gnunet/gnunet_curl_lib.h>
-#include "taler_merchant_service.h"
-#include <taler/taler_json_lib.h>
-#include <taler/taler_signatures.h>
-#include <taler/taler_curl_lib.h>
-
-
-/**
- * Data we keep per planchet.
- */
-struct PlanchetData
-{
-  /**
-   * Secrets of the planchet.
-   */
-  struct TALER_PlanchetMasterSecretP ps;
-
-  /**
-   * Denomination key we are withdrawing.
-   */
-  struct TALER_EXCHANGE_DenomPublicKey pk;
-
-  /**
-   * Hash of the public key of the coin we are signing.
-   */
-  struct TALER_CoinPubHashP c_hash;
-
-  /**
-   * Nonce used for @e csr request, if any.
-   */
-  struct TALER_CsNonce nonce;
-
-  /**
-   * Handle for a /csr request we may optionally need
-   * to trigger.
-   */
-  struct TALER_EXCHANGE_CsRWithdrawHandle *csr;
-
-  /**
-   * Handle for the /tip-pickup operation we are part of.
-   */
-  struct TALER_MERCHANT_TipPickupHandle *tp;
-
-  /**
-   * Offset of this entry in the array.
-   */
-  unsigned int off;
-};
-
-
-/**
- * Handle for a /tip-pickup operation.
- */
-struct TALER_MERCHANT_TipPickupHandle
-{
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MERCHANT_TipPickupCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Handle for the actual (internal) withdraw operation.
-   */
-  struct TALER_MERCHANT_TipPickup2Handle *tpo2;
-
-  /**
-   * Array of length @e num_planchets.
-   */
-  struct PlanchetData *planchets;
-
-  /**
-   * Array of length @e num_planchets.
-   */
-  struct TALER_EXCHANGE_PrivateCoinDetails *pcds;
-
-  /**
-   * Context for making HTTP requests.
-   */
-  struct GNUNET_CURL_Context *ctx;
-
-  /**
-   * URL of the merchant backend.
-   */
-  char *backend_url;
-
-  /**
-   * ID of the tip we are picking up.
-   */
-  struct TALER_TipIdentifierP tip_id;
-
-  /**
-   * Number of planchets/coins used for this operation.
-   */
-  unsigned int num_planchets;
-
-  /**
-   * Number of remaining active /csr-withdraw requests.
-   */
-  unsigned int csr_active;
-};
-
-
-/**
- * Fail the pickup operation @a tp, returning @a ec.
- * Also cancels @a tp.
- *
- * @param[in] tp operation to fail
- * @param ec reason for the failure
- */
-static void
-fail_pickup (struct TALER_MERCHANT_TipPickupHandle *tp,
-             enum TALER_ErrorCode ec)
-{
-  struct TALER_MERCHANT_PickupDetails pd = {
-    .hr.ec = ec
-  };
-
-  tp->cb (tp->cb_cls,
-          &pd);
-  TALER_MERCHANT_tip_pickup_cancel (tp);
-}
-
-
-/**
- * Callback for a /tip-pickup request.  Returns the result of the operation.
- * Note that the client MUST still do the unblinding of the @a blind_sigs.
- *
- * @param cls closure, a `struct TALER_MERCHANT_TipPickupHandle *`
- * @param tpr response details
- */
-static void
-pickup_done_cb (void *cls,
-                const struct TALER_MERCHANT_TipPickup2Response *tpr)
-{
-  struct TALER_MERCHANT_TipPickupHandle *tp = cls;
-  struct TALER_MERCHANT_PickupDetails pd = {
-    .hr = tpr->hr
-  };
-
-  tp->tpo2 = NULL;
-  if (MHD_HTTP_OK != tpr->hr.http_status)
-  {
-    tp->cb (tp->cb_cls,
-            &pd);
-    TALER_MERCHANT_tip_pickup_cancel (tp);
-    return;
-  }
-  {
-    enum GNUNET_GenericReturnValue ok = GNUNET_OK;
-
-    for (unsigned int i = 0; i<tpr->details.ok.num_blind_sigs; i++)
-    {
-      const struct TALER_BlindedDenominationSignature *blind_sig
-        = &tpr->details.ok.blind_sigs[i];
-      struct TALER_EXCHANGE_PrivateCoinDetails *pcd
-        = &tp->pcds[i];
-      struct TALER_FreshCoin fc;
-
-      if (GNUNET_OK !=
-          TALER_planchet_to_coin (&tp->planchets[i].pk.key,
-                                  blind_sig,
-                                  &pcd->bks,
-                                  &pcd->coin_priv,
-                                  NULL,
-                                  &tp->planchets[i].c_hash,
-                                  &pcd->exchange_vals,
-                                  &fc))
-      {
-        ok = GNUNET_SYSERR;
-        break;
-      }
-      pcd->sig = fc.sig;
-    }
-    if (GNUNET_OK != ok)
-    {
-      pd.hr.ec = TALER_EC_MERCHANT_TIP_PICKUP_UNBLIND_FAILURE;
-    }
-    else
-    {
-      pd.details.ok.num_sigs = tpr->details.ok.num_blind_sigs;
-      pd.details.ok.pcds = tp->pcds;
-    }
-    tp->cb (tp->cb_cls,
-            &pd);
-  }
-  TALER_MERCHANT_tip_pickup_cancel (tp);
-}
-
-
-/**
- * We have obtained all of the exchange inputs. Continue the pickup.
- *
- * @param[in,out] tp operation to continue
- */
-static void
-pickup_post_csr (struct TALER_MERCHANT_TipPickupHandle *tp)
-{
-  struct TALER_PlanchetDetail details[tp->num_planchets];
-
-  for (unsigned int i = 0; i<tp->num_planchets; i++)
-  {
-    const struct PlanchetData *pd = &tp->planchets[i];
-    struct TALER_EXCHANGE_PrivateCoinDetails *pcd = &tp->pcds[i];
-
-    TALER_planchet_setup_coin_priv (&pd->ps,
-                                    &pcd->exchange_vals,
-                                    &pcd->coin_priv);
-    TALER_planchet_blinding_secret_create (&pd->ps,
-                                           &pcd->exchange_vals,
-                                           &pcd->bks);
-    if (TALER_DENOMINATION_CS == pcd->exchange_vals.cipher)
-    {
-      details[i].blinded_planchet.details.cs_blinded_planchet.nonce
-        = pd->nonce;
-    }
-    if (GNUNET_OK !=
-        TALER_planchet_prepare (&pd->pk.key,
-                                &pcd->exchange_vals,
-                                &pcd->bks,
-                                &pcd->coin_priv,
-                                NULL,
-                                &tp->planchets[i].c_hash,
-                                &details[i]))
-    {
-      GNUNET_break (0);
-      for (unsigned int j = 0; j<i; j++)
-        TALER_planchet_detail_free (&details[j]);
-      fail_pickup (tp,
-                   TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE);
-      return;
-    }
-  }
-  tp->tpo2 = TALER_MERCHANT_tip_pickup2 (tp->ctx,
-                                         tp->backend_url,
-                                         &tp->tip_id,
-                                         tp->num_planchets,
-                                         details,
-                                         &pickup_done_cb,
-                                         tp);
-  for (unsigned int j = 0; j<tp->num_planchets; j++)
-    TALER_planchet_detail_free (&details[j]);
-  if (NULL == tp->tpo2)
-  {
-    GNUNET_break (0);
-    fail_pickup (tp,
-                 TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE);
-    return;
-  }
-}
-
-
-/**
- * Callbacks of this type are used to serve the result of submitting a
- * CS R request to a exchange.
- *
- * @param cls a `struct TALER_MERCHANT_TipPickupHandle`
- * @param csrr response details
- */
-static void
-csr_cb (void *cls,
-        const struct TALER_EXCHANGE_CsRWithdrawResponse *csrr)
-{
-  struct PlanchetData *pd = cls;
-  struct TALER_MERCHANT_TipPickupHandle *tp = pd->tp;
-
-  pd->csr = NULL;
-  tp->csr_active--;
-  switch (csrr->hr.http_status)
-  {
-  case MHD_HTTP_OK:
-    {
-      struct TALER_EXCHANGE_PrivateCoinDetails *pcd = &tp->pcds[pd->off];
-
-      pcd->exchange_vals = csrr->details.ok.alg_values;
-    }
-    if (0 != tp->csr_active)
-      return;
-    pickup_post_csr (tp);
-    return;
-  default:
-    {
-      struct TALER_MERCHANT_PickupDetails pd = {
-        .hr.hint = "/csr-withdraw failed",
-        .hr.exchange_http_status = csrr->hr.http_status
-      };
-
-      tp->cb (tp->cb_cls,
-              &pd);
-      TALER_MERCHANT_tip_pickup_cancel (tp);
-      return;
-    }
-  }
-}
-
-
-struct TALER_MERCHANT_TipPickupHandle *
-TALER_MERCHANT_tip_pickup (
-  struct GNUNET_CURL_Context *ctx,
-  const char *exchange_url,
-  const char *backend_url,
-  const struct TALER_TipIdentifierP *tip_id,
-  unsigned int num_planchets,
-  const struct TALER_MERCHANT_PlanchetData pds[static num_planchets],
-  TALER_MERCHANT_TipPickupCallback pickup_cb,
-  void *pickup_cb_cls)
-{
-  struct TALER_MERCHANT_TipPickupHandle *tp;
-
-  if (0 == num_planchets)
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  tp = GNUNET_new (struct TALER_MERCHANT_TipPickupHandle);
-  tp->cb = pickup_cb;
-  tp->cb_cls = pickup_cb_cls;
-  tp->ctx = ctx;
-  tp->backend_url = GNUNET_strdup (backend_url);
-  tp->tip_id = *tip_id;
-  tp->num_planchets = num_planchets;
-  tp->planchets = GNUNET_new_array (num_planchets,
-                                    struct PlanchetData);
-  tp->pcds = GNUNET_new_array (num_planchets,
-                               struct TALER_EXCHANGE_PrivateCoinDetails);
-  for (unsigned int i = 0; i<num_planchets; i++)
-  {
-    const struct TALER_MERCHANT_PlanchetData *mpd = &pds[i];
-    const struct TALER_EXCHANGE_DenomPublicKey *pk = mpd->pk;
-    struct TALER_EXCHANGE_PrivateCoinDetails *pcd = &tp->pcds[i];
-    struct PlanchetData *pd = &tp->planchets[i];
-
-    pd->off = i;
-    pd->tp = tp;
-    tp->planchets[i].ps = mpd->ps;
-    tp->planchets[i].pk = *pds[i].pk;
-    TALER_denom_pub_deep_copy (&tp->planchets[i].pk.key,
-                               &pds[i].pk->key);
-    switch (pk->key.cipher)
-    {
-    case TALER_DENOMINATION_RSA:
-      pcd->exchange_vals.cipher = TALER_DENOMINATION_RSA;
-      break;
-    case TALER_DENOMINATION_CS:
-      {
-        TALER_cs_withdraw_nonce_derive (&pd->ps,
-                                        &pd->nonce);
-        pd->csr = TALER_EXCHANGE_csr_withdraw (ctx,
-                                               exchange_url,
-                                               &pd->pk,
-                                               &pd->nonce,
-                                               &csr_cb,
-                                               pd);
-        if (NULL == pd->csr)
-        {
-          GNUNET_break (0);
-          TALER_MERCHANT_tip_pickup_cancel (tp);
-          return NULL;
-        }
-        tp->csr_active++;
-        break;
-      }
-    default:
-      GNUNET_break (0);
-      TALER_MERCHANT_tip_pickup_cancel (tp);
-      return NULL;
-    }
-  }
-  if (0 == tp->csr_active)
-  {
-    pickup_post_csr (tp);
-    return tp;
-  }
-  return tp;
-}
-
-
-void
-TALER_MERCHANT_tip_pickup_cancel (struct TALER_MERCHANT_TipPickupHandle *tp)
-{
-  for (unsigned int i = 0; i<tp->num_planchets; i++)
-  {
-    struct TALER_EXCHANGE_PrivateCoinDetails *pcd = &tp->pcds[i];
-    struct PlanchetData *pd = &tp->planchets[i];
-
-    TALER_denom_sig_free (&pcd->sig);
-    TALER_denom_pub_free (&tp->planchets[i].pk.key);
-    if (NULL != pd->csr)
-    {
-      TALER_EXCHANGE_csr_withdraw_cancel (pd->csr);
-      pd->csr = NULL;
-    }
-  }
-  GNUNET_array_grow (tp->planchets,
-                     tp->num_planchets,
-                     0);
-  if (NULL != tp->tpo2)
-  {
-    TALER_MERCHANT_tip_pickup2_cancel (tp->tpo2);
-    tp->tpo2 = NULL;
-  }
-  GNUNET_free (tp->backend_url);
-  GNUNET_free (tp->pcds);
-  GNUNET_free (tp);
-}
-
-
-/* end of merchant_api_tip_pickup.c */