-fix typo

1 files changed, 0 insertions, 562 deletions

diff --git a/src/lib/exchange_api_deposit.c b/src/lib/exchange_api_deposit.c
deleted file mode 100644
index 6f8d348f4..000000000
--- a/src/lib/exchange_api_deposit.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014-2023 Taler Systems SA
-
-   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, see
-   <http://www.gnu.org/licenses/>
- */
-/**
- * @file lib/exchange_api_deposit.c
- * @brief Implementation of the /deposit request of the exchange's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include <gnunet/gnunet_json_lib.h>
-#include <gnunet/gnunet_curl_lib.h>
-#include "taler_json_lib.h"
-#include "taler_auditor_service.h"
-#include "taler_exchange_service.h"
-#include "exchange_api_common.h"
-#include "exchange_api_handle.h"
-#include "taler_signatures.h"
-#include "exchange_api_curl_defaults.h"
-
-
-/**
- * 1:#AUDITOR_CHANCE is the probability that we report deposits
- * to the auditor.
- *
- * 20==5% of going to auditor. This is possibly still too high, but set
- * deliberately this high for testing
- */
-#define AUDITOR_CHANCE 20
-
-/**
- * @brief A Deposit Handle
- */
-struct TALER_EXCHANGE_DepositHandle
-{
-
-  /**
-   * The connection to exchange this request handle will use
-   */
-  struct TALER_EXCHANGE_Handle *exchange;
-
-  /**
-   * Our CURL context.
-   */
-  struct GNUNET_CURL_Context *ctx;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * Context for #TEH_curl_easy_post(). Keeps the data that must
-   * persist for Curl to make the upload.
-   */
-  struct TALER_CURL_PostContext post_ctx;
-
-  /**
-   * Handle for the request.
-   */
-  struct GNUNET_CURL_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_EXCHANGE_DepositResultCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Details about the contract.
-   */
-  struct TALER_EXCHANGE_DepositContractDetail dcd;
-
-  /**
-   * Details about the coin.
-   */
-  struct TALER_EXCHANGE_CoinDepositDetail cdd;
-
-  /**
-   * Hash of the merchant's wire details.
-   */
-  struct TALER_MerchantWireHashP h_wire;
-
-  /**
-   * Hash over the policy extension, or all zero.
-   */
-  struct TALER_ExtensionPolicyHashP h_policy;
-
-  /**
-   * Time when this confirmation was generated / when the exchange received
-   * the deposit request.
-   */
-  struct GNUNET_TIME_Timestamp exchange_timestamp;
-
-  /**
-   * Exchange signature, set for #auditor_cb.
-   */
-  struct TALER_ExchangeSignatureP exchange_sig;
-
-  /**
-   * Exchange signing public key, set for #auditor_cb.
-   */
-  struct TALER_ExchangePublicKeyP exchange_pub;
-
-  /**
-   * Chance that we will inform the auditor about the deposit
-   * is 1:n, where the value of this field is "n".
-   */
-  unsigned int auditor_chance;
-
-};
-
-
-/**
- * Function called for each auditor to give us a chance to possibly
- * launch a deposit confirmation interaction.
- *
- * @param cls closure
- * @param auditor_url base URL of the auditor
- * @param auditor_pub public key of the auditor
- * @return NULL if no deposit confirmation interaction was launched
- */
-static struct TEAH_AuditorInteractionEntry *
-auditor_cb (void *cls,
-            const char *auditor_url,
-            const struct TALER_AuditorPublicKeyP *auditor_pub)
-{
-  struct TALER_EXCHANGE_DepositHandle *dh = cls;
-  const struct TALER_EXCHANGE_Keys *key_state;
-  const struct TALER_EXCHANGE_SigningPublicKey *spk;
-  struct TEAH_AuditorInteractionEntry *aie;
-  struct TALER_Amount amount_without_fee;
-  const struct TALER_EXCHANGE_DenomPublicKey *dki;
-
-  if (0 !=
-      GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                dh->auditor_chance))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Not providing deposit confirmation to auditor\n");
-    return NULL;
-  }
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Will provide deposit confirmation to auditor `%s'\n",
-              TALER_B2S (auditor_pub));
-  key_state = TALER_EXCHANGE_get_keys (dh->exchange);
-  dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
-                                                     &dh->cdd.h_denom_pub);
-  GNUNET_assert (NULL != dki);
-  spk = TALER_EXCHANGE_get_signing_key_info (key_state,
-                                             &dh->exchange_pub);
-  if (NULL == spk)
-  {
-    GNUNET_break_op (0);
-    return NULL;
-  }
-  GNUNET_assert (0 <=
-                 TALER_amount_subtract (&amount_without_fee,
-                                        &dh->cdd.amount,
-                                        &dki->fees.deposit));
-  aie = GNUNET_new (struct TEAH_AuditorInteractionEntry);
-  aie->dch = TALER_AUDITOR_deposit_confirmation (
-    dh->ctx,
-    auditor_url,
-    &dh->h_wire,
-    &dh->h_policy,
-    &dh->dcd.h_contract_terms,
-    dh->exchange_timestamp,
-    dh->dcd.wire_deadline,
-    dh->dcd.refund_deadline,
-    &amount_without_fee,
-    &dh->cdd.coin_pub,
-    &dh->dcd.merchant_pub,
-    &dh->exchange_pub,
-    &dh->exchange_sig,
-    &key_state->master_pub,
-    spk->valid_from,
-    spk->valid_until,
-    spk->valid_legal,
-    &spk->master_sig,
-    &TEAH_acc_confirmation_cb,
-    aie);
-  return aie;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /deposit request.
- *
- * @param cls the `struct TALER_EXCHANGE_DepositHandle`
- * @param response_code HTTP response code, 0 on error
- * @param response parsed JSON result, NULL on error
- */
-static void
-handle_deposit_finished (void *cls,
-                         long response_code,
-                         const void *response)
-{
-  struct TALER_EXCHANGE_DepositHandle *dh = cls;
-  const json_t *j = response;
-  struct TALER_EXCHANGE_DepositResult dr = {
-    .hr.reply = j,
-    .hr.http_status = (unsigned int) response_code
-  };
-  const struct TALER_EXCHANGE_Keys *keys;
-
-  dh->job = NULL;
-  keys = TALER_EXCHANGE_get_keys (dh->exchange);
-  switch (response_code)
-  {
-  case 0:
-    dr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
-    break;
-  case MHD_HTTP_OK:
-    {
-      const struct TALER_EXCHANGE_Keys *key_state;
-      struct GNUNET_JSON_Specification spec[] = {
-        GNUNET_JSON_spec_fixed_auto ("exchange_sig",
-                                     &dh->exchange_sig),
-        GNUNET_JSON_spec_fixed_auto ("exchange_pub",
-                                     &dh->exchange_pub),
-        GNUNET_JSON_spec_mark_optional (
-          GNUNET_JSON_spec_string ("transaction_base_url",
-                                   &dr.details.ok.transaction_base_url),
-          NULL),
-        GNUNET_JSON_spec_timestamp ("exchange_timestamp",
-                                    &dh->exchange_timestamp),
-        GNUNET_JSON_spec_end ()
-      };
-      struct TALER_Amount amount_without_fee;
-      const struct TALER_EXCHANGE_DenomPublicKey *dki;
-
-      if (GNUNET_OK !=
-          GNUNET_JSON_parse (j,
-                             spec,
-                             NULL, NULL))
-      {
-        GNUNET_break_op (0);
-        dr.hr.http_status = 0;
-        dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
-        break;
-      }
-      key_state = TALER_EXCHANGE_get_keys (dh->exchange);
-      dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
-                                                         &dh->cdd.h_denom_pub);
-      GNUNET_assert (NULL != dki);
-      if (GNUNET_OK !=
-          TALER_EXCHANGE_test_signing_key (key_state,
-                                           &dh->exchange_pub))
-      {
-        GNUNET_break_op (0);
-        dr.hr.http_status = 0;
-        dr.hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE;
-        break;
-      }
-      GNUNET_assert (0 <=
-                     TALER_amount_subtract (&amount_without_fee,
-                                            &dh->cdd.amount,
-                                            &dki->fees.deposit));
-
-      if (GNUNET_OK !=
-          TALER_exchange_online_deposit_confirmation_verify (
-            &dh->dcd.h_contract_terms,
-            &dh->h_wire,
-            &dh->h_policy,
-            dh->exchange_timestamp,
-            dh->dcd.wire_deadline,
-            dh->dcd.refund_deadline,
-            &amount_without_fee,
-            &dh->cdd.coin_pub,
-            &dh->dcd.merchant_pub,
-            &dh->exchange_pub,
-            &dh->exchange_sig))
-      {
-        GNUNET_break_op (0);
-        dr.hr.http_status = 0;
-        dr.hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE;
-        break;
-      }
-
-      TEAH_get_auditors_for_dc (dh->exchange,
-                                &auditor_cb,
-                                dh);
-    }
-    dr.details.ok.exchange_sig = &dh->exchange_sig;
-    dr.details.ok.exchange_pub = &dh->exchange_pub;
-    dr.details.ok.deposit_timestamp = dh->exchange_timestamp;
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the exchange is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    dr.hr.ec = TALER_JSON_get_error_code (j);
-    dr.hr.hint = TALER_JSON_get_error_hint (j);
-    break;
-  case MHD_HTTP_FORBIDDEN:
-    dr.hr.ec = TALER_JSON_get_error_code (j);
-    dr.hr.hint = TALER_JSON_get_error_hint (j);
-    /* Nothing really to verify, exchange 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:
-    dr.hr.ec = TALER_JSON_get_error_code (j);
-    dr.hr.hint = TALER_JSON_get_error_hint (j);
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_CONFLICT:
-    {
-      const struct TALER_EXCHANGE_Keys *key_state;
-      const struct TALER_EXCHANGE_DenomPublicKey *dki;
-
-      key_state = TALER_EXCHANGE_get_keys (dh->exchange);
-      dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
-                                                         &dh->cdd.h_denom_pub);
-      GNUNET_assert (NULL != dki);
-      dr.hr.ec = TALER_JSON_get_error_code (j);
-      dr.hr.hint = TALER_JSON_get_error_hint (j);
-      if (GNUNET_OK !=
-          TALER_EXCHANGE_check_coin_conflict_ (
-            keys,
-            j,
-            dki,
-            &dh->cdd.coin_pub,
-            &dh->cdd.coin_sig,
-            &dh->cdd.amount))
-      {
-        GNUNET_break_op (0);
-        dr.hr.http_status = 0;
-        dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
-        break;
-      }
-    }
-    break;
-  case MHD_HTTP_GONE:
-    /* could happen if denomination was revoked */
-    /* Note: one might want to check /keys for revocation
-       signature here, alas tricky in case our /keys
-       is outdated => left to clients */
-    dr.hr.ec = TALER_JSON_get_error_code (j);
-    dr.hr.hint = TALER_JSON_get_error_hint (j);
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    dr.hr.ec = TALER_JSON_get_error_code (j);
-    dr.hr.hint = TALER_JSON_get_error_hint (j);
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    dr.hr.ec = TALER_JSON_get_error_code (j);
-    dr.hr.hint = TALER_JSON_get_error_hint (j);
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u/%d for exchange deposit\n",
-                (unsigned int) response_code,
-                dr.hr.ec);
-    GNUNET_break_op (0);
-    break;
-  }
-  dh->cb (dh->cb_cls,
-          &dr);
-  TALER_EXCHANGE_deposit_cancel (dh);
-}
-
-
-struct TALER_EXCHANGE_DepositHandle *
-TALER_EXCHANGE_deposit (
-  struct TALER_EXCHANGE_Handle *exchange,
-  const struct TALER_EXCHANGE_DepositContractDetail *dcd,
-  const struct TALER_EXCHANGE_CoinDepositDetail *cdd,
-  TALER_EXCHANGE_DepositResultCallback cb,
-  void *cb_cls,
-  enum TALER_ErrorCode *ec)
-{
-  const struct TALER_EXCHANGE_Keys *key_state;
-  struct TALER_EXCHANGE_DepositHandle *dh;
-  json_t *deposit_obj;
-  CURL *eh;
-  const struct TALER_EXCHANGE_DenomPublicKey *dki;
-  struct TALER_Amount amount_without_fee;
-  char arg_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2 + 32];
-
-  GNUNET_assert (GNUNET_YES ==
-                 TEAH_handle_is_ready (exchange));
-  if (GNUNET_TIME_timestamp_cmp (dcd->refund_deadline,
-                                 >,
-                                 dcd->wire_deadline))
-  {
-    GNUNET_break_op (0);
-    *ec = TALER_EC_EXCHANGE_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE;
-    return NULL;
-  }
-  {
-    char pub_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2];
-    char *end;
-
-    end = GNUNET_STRINGS_data_to_string (
-      &cdd->coin_pub,
-      sizeof (struct TALER_CoinSpendPublicKeyP),
-      pub_str,
-      sizeof (pub_str));
-    *end = '\0';
-    GNUNET_snprintf (arg_str,
-                     sizeof (arg_str),
-                     "/coins/%s/deposit",
-                     pub_str);
-  }
-  key_state = TALER_EXCHANGE_get_keys (exchange);
-  dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
-                                                     &cdd->h_denom_pub);
-  if (NULL == dki)
-  {
-    *ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN;
-    GNUNET_break_op (0);
-    return NULL;
-  }
-  if (0 >
-      TALER_amount_subtract (&amount_without_fee,
-                             &cdd->amount,
-                             &dki->fees.deposit))
-  {
-    *ec = TALER_EC_EXCHANGE_DEPOSIT_FEE_ABOVE_AMOUNT;
-    GNUNET_break_op (0);
-    return NULL;
-  }
-  dh = GNUNET_new (struct TALER_EXCHANGE_DepositHandle);
-  dh->auditor_chance = AUDITOR_CHANCE;
-  dh->exchange = exchange;
-  dh->cb = cb;
-  dh->cb_cls = cb_cls;
-  dh->cdd = *cdd;
-  dh->dcd = *dcd;
-  if (NULL != dcd->policy_details)
-    TALER_deposit_policy_hash (dcd->policy_details,
-                               &dh->h_policy);
-  TALER_merchant_wire_signature_hash (dcd->merchant_payto_uri,
-                                      &dcd->wire_salt,
-                                      &dh->h_wire);
-  if (GNUNET_OK !=
-      TALER_EXCHANGE_verify_deposit_signature_ (dcd,
-                                                &dh->h_policy,
-                                                &dh->h_wire,
-                                                cdd,
-                                                dki))
-  {
-    *ec = TALER_EC_EXCHANGE_DEPOSIT_COIN_SIGNATURE_INVALID;
-    GNUNET_break_op (0);
-    GNUNET_free (dh);
-    return NULL;
-  }
-  dh->url = TEAH_path_to_url (exchange,
-                              arg_str);
-  if (NULL == dh->url)
-  {
-    GNUNET_break (0);
-    *ec = TALER_EC_GENERIC_ALLOCATION_FAILURE;
-    GNUNET_free (dh->url);
-    GNUNET_free (dh);
-    return NULL;
-  }
-
-  deposit_obj = GNUNET_JSON_PACK (
-    TALER_JSON_pack_amount ("contribution",
-                            &cdd->amount),
-    GNUNET_JSON_pack_string ("merchant_payto_uri",
-                             dcd->merchant_payto_uri),
-    GNUNET_JSON_pack_data_auto ("wire_salt",
-                                &dcd->wire_salt),
-    GNUNET_JSON_pack_data_auto ("h_contract_terms",
-                                &dcd->h_contract_terms),
-    GNUNET_JSON_pack_allow_null (
-      GNUNET_JSON_pack_data_auto ("h_age_commitment",
-                                  &cdd->h_age_commitment)),
-    GNUNET_JSON_pack_data_auto ("denom_pub_hash",
-                                &cdd->h_denom_pub),
-    TALER_JSON_pack_denom_sig ("ub_sig",
-                               &cdd->denom_sig),
-    GNUNET_JSON_pack_timestamp ("timestamp",
-                                dcd->timestamp),
-    GNUNET_JSON_pack_data_auto ("merchant_pub",
-                                &dcd->merchant_pub),
-    GNUNET_JSON_pack_allow_null (
-      GNUNET_JSON_pack_timestamp ("refund_deadline",
-                                  dcd->refund_deadline)),
-    GNUNET_JSON_pack_timestamp ("wire_transfer_deadline",
-                                dcd->wire_deadline),
-    GNUNET_JSON_pack_data_auto ("coin_sig",
-                                &cdd->coin_sig));
-  GNUNET_assert (NULL != deposit_obj);
-  eh = TALER_EXCHANGE_curl_easy_get_ (dh->url);
-  if ( (NULL == eh) ||
-       (GNUNET_OK !=
-        TALER_curl_easy_post (&dh->post_ctx,
-                              eh,
-                              deposit_obj)) )
-  {
-    *ec = TALER_EC_GENERIC_CURL_ALLOCATION_FAILURE;
-    GNUNET_break (0);
-    if (NULL != eh)
-      curl_easy_cleanup (eh);
-    json_decref (deposit_obj);
-    GNUNET_free (dh->url);
-    GNUNET_free (dh);
-    return NULL;
-  }
-  json_decref (deposit_obj);
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "URL for deposit: `%s'\n",
-              dh->url);
-  dh->ctx = TEAH_handle_to_context (exchange);
-  dh->job = GNUNET_CURL_job_add2 (dh->ctx,
-                                  eh,
-                                  dh->post_ctx.headers,
-                                  &handle_deposit_finished,
-                                  dh);
-  return dh;
-}
-
-
-void
-TALER_EXCHANGE_deposit_force_dc (struct TALER_EXCHANGE_DepositHandle *deposit)
-{
-  deposit->auditor_chance = 1;
-}
-
-
-void
-TALER_EXCHANGE_deposit_cancel (struct TALER_EXCHANGE_DepositHandle *deposit)
-{
-  if (NULL != deposit->job)
-  {
-    GNUNET_CURL_job_cancel (deposit->job);
-    deposit->job = NULL;
-  }
-  GNUNET_free (deposit->url);
-  TALER_curl_easy_post_finished (&deposit->post_ctx);
-  GNUNET_free (deposit);
-}
-
-
-/* end of exchange_api_deposit.c */