Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   (C) 2016-2023 Taler Systems SA
       4             : 
       5             :   TALER is free software; you can redistribute it and/or
       6             :   modify it under the terms of the GNU General Public License
       7             :   as published by the Free Software Foundation; either version 3,
       8             :   or (at your option) any later version.
       9             : 
      10             :   TALER is distributed in the hope that it will be useful,
      11             :   but WITHOUT ANY WARRANTY; without even the implied warranty of
      12             :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13             :   GNU General Public License for more details.
      14             : 
      15             :   You should have received a copy of the GNU General Public
      16             :   License along with TALER; see the file COPYING.  If not,
      17             :   see <http://www.gnu.org/licenses/>
      18             : */
      19             : /**
      20             :  * @file bank-lib/fakebank_common_parser.c
      21             :  * @brief functions to help parse REST requests
      22             :  * @author Christian Grothoff <christian@grothoff.org>
      23             :  */
      24             : #include "taler/platform.h"
      25             : #include "taler/taler_fakebank_lib.h"
      26             : #include "taler/taler_bank_service.h"
      27             : #include "taler/taler_mhd_lib.h"
      28             : #include <gnunet/gnunet_mhd_compat.h>
      29             : #include "fakebank.h"
      30             : #include "fakebank_common_parser.h"
      31             : 
      32             : 
      33             : enum GNUNET_GenericReturnValue
      34         173 : TALER_FAKEBANK_common_parse_history_args (
      35             :   const struct TALER_FAKEBANK_Handle *h,
      36             :   struct MHD_Connection *connection,
      37             :   struct HistoryArgs *ha)
      38             : {
      39             :   const char *start;
      40             :   const char *delta;
      41             :   const char *long_poll_ms;
      42             :   unsigned long long lp_timeout;
      43             :   unsigned long long sval;
      44             :   long long d;
      45             :   char dummy;
      46             : 
      47         173 :   start = MHD_lookup_connection_value (connection,
      48             :                                        MHD_GET_ARGUMENT_KIND,
      49             :                                        "start");
      50         173 :   ha->have_start = (NULL != start);
      51         173 :   delta = MHD_lookup_connection_value (connection,
      52             :                                        MHD_GET_ARGUMENT_KIND,
      53             :                                        "delta");
      54         173 :   long_poll_ms = MHD_lookup_connection_value (connection,
      55             :                                               MHD_GET_ARGUMENT_KIND,
      56             :                                               "long_poll_ms");
      57         173 :   lp_timeout = 0;
      58         173 :   if ( (NULL == delta) ||
      59         173 :        (1 != sscanf (delta,
      60             :                      "%lld%c",
      61             :                      &d,
      62             :                      &dummy)) )
      63             :   {
      64             :     /* Fail if one of the above failed.  */
      65             :     /* Invalid request, given that this is fakebank we impolitely
      66             :      * just kill the connection instead of returning a nice error.
      67             :      */
      68           0 :     GNUNET_break_op (0);
      69             :     return (MHD_YES ==
      70           0 :             TALER_MHD_reply_with_error (connection,
      71             :                                         MHD_HTTP_BAD_REQUEST,
      72             :                                         TALER_EC_GENERIC_PARAMETER_MALFORMED,
      73             :                                         "delta"))
      74             :            ? GNUNET_NO
      75           0 :            : GNUNET_SYSERR;
      76             :   }
      77         173 :   if ( (NULL != long_poll_ms) &&
      78           0 :        (1 != sscanf (long_poll_ms,
      79             :                      "%llu%c",
      80             :                      &lp_timeout,
      81             :                      &dummy)) )
      82             :   {
      83             :     /* Fail if one of the above failed.  */
      84             :     /* Invalid request, given that this is fakebank we impolitely
      85             :      * just kill the connection instead of returning a nice error.
      86             :      */
      87           0 :     GNUNET_break_op (0);
      88             :     return (MHD_YES ==
      89           0 :             TALER_MHD_reply_with_error (connection,
      90             :                                         MHD_HTTP_BAD_REQUEST,
      91             :                                         TALER_EC_GENERIC_PARAMETER_MALFORMED,
      92             :                                         "long_poll_ms"))
      93             :            ? GNUNET_NO
      94           0 :            : GNUNET_SYSERR;
      95             :   }
      96         173 :   if ( (NULL != start) &&
      97         156 :        (1 != sscanf (start,
      98             :                      "%llu%c",
      99             :                      &sval,
     100             :                      &dummy)) )
     101             :   {
     102             :     /* Fail if one of the above failed.  */
     103             :     /* Invalid request, given that this is fakebank we impolitely
     104             :      * just kill the connection instead of returning a nice error.
     105             :      */
     106           0 :     GNUNET_break_op (0);
     107             :     return (MHD_YES ==
     108           0 :             TALER_MHD_reply_with_error (connection,
     109             :                                         MHD_HTTP_BAD_REQUEST,
     110             :                                         TALER_EC_GENERIC_PARAMETER_MALFORMED,
     111             :                                         "start"))
     112             :            ? GNUNET_NO
     113           0 :            : GNUNET_SYSERR;
     114             :   }
     115         173 :   if (NULL == start)
     116          17 :     ha->start_idx = (d > 0) ? 0 : UINT64_MAX;
     117             :   else
     118         156 :     ha->start_idx = (uint64_t) sval;
     119         173 :   ha->delta = (int64_t) d;
     120         173 :   if (0 == ha->delta)
     121             :   {
     122           0 :     GNUNET_break_op (0);
     123             :     return (MHD_YES ==
     124           0 :             TALER_MHD_reply_with_error (connection,
     125             :                                         MHD_HTTP_BAD_REQUEST,
     126             :                                         TALER_EC_GENERIC_PARAMETER_MALFORMED,
     127             :                                         "delta"))
     128             :            ? GNUNET_NO
     129           0 :            : GNUNET_SYSERR;
     130             :   }
     131             :   ha->lp_timeout
     132         173 :     = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
     133             :                                      lp_timeout);
     134         173 :   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
     135             :               "Request for %lld records from %llu\n",
     136             :               (long long) ha->delta,
     137             :               (unsigned long long) ha->start_idx);
     138         173 :   return GNUNET_OK;
     139             : }