Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   Copyright (C) 2015-2023 Taler Systems SA
       4             : 
       5             :   TALER is free software; you can redistribute it and/or modify it under the
       6             :   terms of the GNU General Public License as published by the Free Software
       7             :   Foundation; either version 3, or (at your option) any later version.
       8             : 
       9             :   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
      10             :   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
      11             :   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
      12             : 
      13             :   You should have received a copy of the GNU General Public License along with
      14             :   TALER; see the file COPYING.  If not, see
      15             :   <http://www.gnu.org/licenses/>
      16             : */
      17             : /**
      18             :  * @file lib/exchange_api_management_wire_disable.c
      19             :  * @brief functions to disable an exchange wire method / bank account
      20             :  * @author Christian Grothoff
      21             :  */
      22             : #include "taler/platform.h"
      23             : #include "taler/taler_json_lib.h"
      24             : #include <gnunet/gnunet_curl_lib.h>
      25             : #include <microhttpd.h>
      26             : #include "taler/taler_exchange_service.h"
      27             : #include "exchange_api_curl_defaults.h"
      28             : #include "taler/taler_signatures.h"
      29             : #include "taler/taler_curl_lib.h"
      30             : #include "taler/taler_json_lib.h"
      31             : 
      32             : 
      33             : struct TALER_EXCHANGE_ManagementWireDisableHandle
      34             : {
      35             : 
      36             :   /**
      37             :    * The url for this request.
      38             :    */
      39             :   char *url;
      40             : 
      41             :   /**
      42             :    * Minor context that holds body and headers.
      43             :    */
      44             :   struct TALER_CURL_PostContext post_ctx;
      45             : 
      46             :   /**
      47             :    * Handle for the request.
      48             :    */
      49             :   struct GNUNET_CURL_Job *job;
      50             : 
      51             :   /**
      52             :    * Function to call with the result.
      53             :    */
      54             :   TALER_EXCHANGE_ManagementWireDisableCallback cb;
      55             : 
      56             :   /**
      57             :    * Closure for @a cb.
      58             :    */
      59             :   void *cb_cls;
      60             : 
      61             :   /**
      62             :    * Reference to the execution context.
      63             :    */
      64             :   struct GNUNET_CURL_Context *ctx;
      65             : };
      66             : 
      67             : 
      68             : /**
      69             :  * Function called when we're done processing the
      70             :  * HTTP /management/wire/disable request.
      71             :  *
      72             :  * @param cls the `struct TALER_EXCHANGE_ManagementAuditorDisableHandle *`
      73             :  * @param response_code HTTP response code, 0 on error
      74             :  * @param response response body, NULL if not in JSON
      75             :  */
      76             : static void
      77           6 : handle_auditor_disable_finished (void *cls,
      78             :                                  long response_code,
      79             :                                  const void *response)
      80             : {
      81           6 :   struct TALER_EXCHANGE_ManagementWireDisableHandle *wh = cls;
      82           6 :   const json_t *json = response;
      83           6 :   struct TALER_EXCHANGE_ManagementWireDisableResponse wdr = {
      84           6 :     .hr.http_status = (unsigned int) response_code,
      85             :     .hr.reply = json
      86             :   };
      87             : 
      88           6 :   wh->job = NULL;
      89           6 :   switch (response_code)
      90             :   {
      91           0 :   case 0:
      92             :     /* no reply */
      93           0 :     wdr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
      94           0 :     wdr.hr.hint = "server offline?";
      95           0 :     break;
      96           2 :   case MHD_HTTP_NO_CONTENT:
      97           2 :     break;
      98           2 :   case MHD_HTTP_FORBIDDEN:
      99           2 :     wdr.hr.ec = TALER_JSON_get_error_code (json);
     100           2 :     wdr.hr.hint = TALER_JSON_get_error_hint (json);
     101           2 :     break;
     102           2 :   case MHD_HTTP_NOT_FOUND:
     103           2 :     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     104             :                 "Server did not find handler at `%s'. Did you configure the correct exchange base URL?\n",
     105             :                 wh->url);
     106           2 :     if (NULL != json)
     107             :     {
     108           2 :       wdr.hr.ec = TALER_JSON_get_error_code (json);
     109           2 :       wdr.hr.hint = TALER_JSON_get_error_hint (json);
     110             :     }
     111             :     else
     112             :     {
     113           0 :       wdr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     114           0 :       wdr.hr.hint = TALER_ErrorCode_get_hint (wdr.hr.ec);
     115             :     }
     116           2 :     break;
     117           0 :   case MHD_HTTP_CONFLICT:
     118           0 :     wdr.hr.ec = TALER_JSON_get_error_code (json);
     119           0 :     wdr.hr.hint = TALER_JSON_get_error_hint (json);
     120           0 :     break;
     121           0 :   default:
     122             :     /* unexpected response code */
     123           0 :     GNUNET_break_op (0);
     124           0 :     wdr.hr.ec = TALER_JSON_get_error_code (json);
     125           0 :     wdr.hr.hint = TALER_JSON_get_error_hint (json);
     126           0 :     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     127             :                 "Unexpected response code %u/%d exchange management disable wire\n",
     128             :                 (unsigned int) response_code,
     129             :                 (int) wdr.hr.ec);
     130           0 :     break;
     131             :   }
     132           6 :   if (NULL != wh->cb)
     133             :   {
     134           6 :     wh->cb (wh->cb_cls,
     135             :             &wdr);
     136           6 :     wh->cb = NULL;
     137             :   }
     138           6 :   TALER_EXCHANGE_management_disable_wire_cancel (wh);
     139           6 : }
     140             : 
     141             : 
     142             : struct TALER_EXCHANGE_ManagementWireDisableHandle *
     143           6 : TALER_EXCHANGE_management_disable_wire (
     144             :   struct GNUNET_CURL_Context *ctx,
     145             :   const char *url,
     146             :   const struct TALER_FullPayto payto_uri,
     147             :   struct GNUNET_TIME_Timestamp validity_end,
     148             :   const struct TALER_MasterSignatureP *master_sig,
     149             :   TALER_EXCHANGE_ManagementWireDisableCallback cb,
     150             :   void *cb_cls)
     151             : {
     152             :   struct TALER_EXCHANGE_ManagementWireDisableHandle *wh;
     153             :   CURL *eh;
     154             :   json_t *body;
     155             : 
     156           6 :   wh = GNUNET_new (struct TALER_EXCHANGE_ManagementWireDisableHandle);
     157           6 :   wh->cb = cb;
     158           6 :   wh->cb_cls = cb_cls;
     159           6 :   wh->ctx = ctx;
     160           6 :   wh->url = TALER_url_join (url,
     161             :                             "management/wire/disable",
     162             :                             NULL);
     163           6 :   if (NULL == wh->url)
     164             :   {
     165           0 :     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     166             :                 "Could not construct request URL.\n");
     167           0 :     GNUNET_free (wh);
     168           0 :     return NULL;
     169             :   }
     170           6 :   body = GNUNET_JSON_PACK (
     171             :     TALER_JSON_pack_full_payto ("payto_uri",
     172             :                                 payto_uri),
     173             :     GNUNET_JSON_pack_data_auto ("master_sig_del",
     174             :                                 master_sig),
     175             :     GNUNET_JSON_pack_timestamp ("validity_end",
     176             :                                 validity_end));
     177           6 :   eh = TALER_EXCHANGE_curl_easy_get_ (wh->url);
     178          12 :   if ( (NULL == eh) ||
     179             :        (GNUNET_OK !=
     180           6 :         TALER_curl_easy_post (&wh->post_ctx,
     181             :                               eh,
     182             :                               body)) )
     183             :   {
     184           0 :     GNUNET_break (0);
     185           0 :     if (NULL != eh)
     186           0 :       curl_easy_cleanup (eh);
     187           0 :     json_decref (body);
     188           0 :     GNUNET_free (wh->url);
     189           0 :     GNUNET_free (wh);
     190           0 :     return NULL;
     191             :   }
     192           6 :   json_decref (body);
     193           6 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
     194             :               "Requesting URL '%s'\n",
     195             :               wh->url);
     196          12 :   wh->job = GNUNET_CURL_job_add2 (ctx,
     197             :                                   eh,
     198           6 :                                   wh->post_ctx.headers,
     199             :                                   &handle_auditor_disable_finished,
     200             :                                   wh);
     201           6 :   if (NULL == wh->job)
     202             :   {
     203           0 :     TALER_EXCHANGE_management_disable_wire_cancel (wh);
     204           0 :     return NULL;
     205             :   }
     206           6 :   return wh;
     207             : }
     208             : 
     209             : 
     210             : void
     211           6 : TALER_EXCHANGE_management_disable_wire_cancel (
     212             :   struct TALER_EXCHANGE_ManagementWireDisableHandle *wh)
     213             : {
     214           6 :   if (NULL != wh->job)
     215             :   {
     216           0 :     GNUNET_CURL_job_cancel (wh->job);
     217           0 :     wh->job = NULL;
     218             :   }
     219           6 :   TALER_curl_easy_post_finished (&wh->post_ctx);
     220           6 :   GNUNET_free (wh->url);
     221           6 :   GNUNET_free (wh);
     222           6 : }