merchant

Merchant backend to process payments, run by merchants
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taler-merchant-httpd_post-private-reports.c (6321B)


      1 /*
      2   This file is part of TALER
      3   (C) 2025 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify it under the
      6   terms of the GNU Affero 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 Affero General Public License for more
     12   details.
     13 
     14   You should have received a copy of the GNU Affero General Public License
     15   along with TALER; see the file COPYING.  If not, see
     16   <http://www.gnu.org/licenses/>
     17 */
     18 /**
     19  * @file src/backend/taler-merchant-httpd_post-private-reports.c
     20  * @brief implementation of POST /private/reports
     21  * @author Christian Grothoff
     22  */
     23 #include "platform.h"
     24 #include "taler-merchant-httpd_post-private-reports.h"
     25 #include <taler/taler_json_lib.h>
     26 #include <taler/taler_dbevents.h>
     27 #include "taler/taler_merchant_util.h"
     28 #include "merchant-database/insert_report.h"
     29 #include "merchant-database/event_notify.h"
     30 
     31 
     32 enum MHD_Result
     33 TMH_private_post_reports (const struct TMH_RequestHandler *rh,
     34                           struct MHD_Connection *connection,
     35                           struct TMH_HandlerContext *hc)
     36 {
     37   const char *description;
     38   const char *program_section;
     39   const char *mime_type;
     40   const char *data_source;
     41   const char *target_address;
     42   struct GNUNET_TIME_Relative frequency;
     43   struct GNUNET_TIME_Relative frequency_shift
     44     = GNUNET_TIME_UNIT_ZERO;
     45   enum GNUNET_DB_QueryStatus qs;
     46   struct GNUNET_JSON_Specification spec[] = {
     47     GNUNET_JSON_spec_string ("description",
     48                              &description),
     49     GNUNET_JSON_spec_string ("program_section",
     50                              &program_section),
     51     GNUNET_JSON_spec_string ("mime_type",
     52                              &mime_type),
     53     GNUNET_JSON_spec_string ("data_source",
     54                              &data_source),
     55     GNUNET_JSON_spec_string ("target_address",
     56                              &target_address),
     57     GNUNET_JSON_spec_relative_time ("report_frequency",
     58                                     &frequency),
     59     GNUNET_JSON_spec_mark_optional (
     60       GNUNET_JSON_spec_relative_time ("report_frequency_shift",
     61                                       &frequency_shift),
     62       NULL),
     63     GNUNET_JSON_spec_end ()
     64   };
     65   uint64_t report_id = 0;
     66 
     67   (void) rh;
     68 
     69   {
     70     enum GNUNET_GenericReturnValue res;
     71 
     72     res = TALER_MHD_parse_json_data (connection,
     73                                      hc->request_body,
     74                                      spec);
     75     if (GNUNET_OK != res)
     76     {
     77       GNUNET_break_op (0);
     78       return (GNUNET_NO == res)
     79              ? MHD_YES
     80              : MHD_NO;
     81     }
     82   }
     83   {
     84     char *section;
     85 
     86     /* Check program_section exists in config! */
     87     GNUNET_asprintf (&section,
     88                      "report-generator-%s",
     89                      program_section);
     90     if (GNUNET_YES !=
     91         GNUNET_CONFIGURATION_have_value (TMH_cfg,
     92                                          section,
     93                                          "BINARY"))
     94     {
     95       GNUNET_free (section);
     96       GNUNET_break (0);
     97       return TALER_MHD_reply_with_error (
     98         connection,
     99         MHD_HTTP_NOT_IMPLEMENTED,
    100         TALER_EC_MERCHANT_GENERIC_REPORT_GENERATOR_UNCONFIGURED,
    101         program_section);
    102     }
    103     GNUNET_free (section);
    104   }
    105   if ('/' != data_source[0])
    106   {
    107     GNUNET_break_op (0);
    108     return TALER_MHD_reply_with_error (connection,
    109                                        MHD_HTTP_BAD_REQUEST,
    110                                        TALER_EC_GENERIC_PARAMETER_MALFORMED,
    111                                        "data_source");
    112 
    113   }
    114   /* The report generator passes both values to the generator binary on
    115      the command line, and the mime type into an "Accept:" header of its
    116      own request.  A target address that begins with '-' is taken for an
    117      option by the delivery tools behind the generator, and a control
    118      character in either value would distort the header. */
    119   if (! TALER_MERCHANT_report_target_valid (target_address))
    120   {
    121     GNUNET_break_op (0);
    122     return TALER_MHD_reply_with_error (connection,
    123                                        MHD_HTTP_BAD_REQUEST,
    124                                        TALER_EC_GENERIC_PARAMETER_MALFORMED,
    125                                        "target_address");
    126   }
    127   if (! TALER_MERCHANT_mime_type_valid (mime_type))
    128   {
    129     GNUNET_break_op (0);
    130     return TALER_MHD_reply_with_error (connection,
    131                                        MHD_HTTP_BAD_REQUEST,
    132                                        TALER_EC_GENERIC_PARAMETER_MALFORMED,
    133                                        "mime_type");
    134   }
    135   qs = TALER_MERCHANTDB_insert_report (TMH_db,
    136                                        hc->instance->settings.id,
    137                                        program_section,
    138                                        description,
    139                                        mime_type,
    140                                        data_source,
    141                                        target_address,
    142                                        frequency,
    143                                        frequency_shift,
    144                                        &report_id);
    145   if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT != qs)
    146   {
    147     /* The INSERT either stores the row and returns its serial, or it
    148        fails; anything else would leave @e report_id unset. */
    149     GNUNET_break (0);
    150     return TALER_MHD_reply_with_error (connection,
    151                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
    152                                        TALER_EC_GENERIC_DB_STORE_FAILED,
    153                                        "insert_report");
    154   }
    155 
    156   /* FIXME-Optimization: do trigger inside of transaction above... */
    157   {
    158     struct GNUNET_DB_EventHeaderP ev = {
    159       .size = htons (sizeof (ev)),
    160       .type = htons (TALER_DBEVENT_MERCHANT_REPORT_UPDATE)
    161     };
    162 
    163     TALER_MERCHANTDB_event_notify (TMH_db,
    164                                    &ev,
    165                                    NULL,
    166                                    0);
    167   }
    168 
    169   return TALER_MHD_REPLY_JSON_PACK (
    170     connection,
    171     MHD_HTTP_OK,
    172     GNUNET_JSON_pack_uint64 ("report_serial_id",
    173                              report_id));
    174 }