exchange

Base system with REST service to issue digital coins, run by the payment service provider
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taler-exchange-httpd_spa.c (3235B)

      1 /*
      2   This file is part of TALER
      3   Copyright (C) 2020, 2023, 2024 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 EXCHANGEABILITY 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 <http://www.gnu.org/licenses/>
     15 */
     16 /**
     17  * @file taler-exchange-httpd_spa.c
     18  * @brief logic to load single page apps (/)
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/platform.h"
     22 #include <gnunet/gnunet_util_lib.h>
     23 #include "taler/taler_util.h"
     24 #include "taler/taler_mhd_lib.h"
     25 #include <gnunet/gnunet_mhd_compat.h>
     26 #include "taler-exchange-httpd.h"
     27 #include "taler-exchange-httpd_spa.h"
     28 
     29 
     30 /**
     31  * Resources of the AML SPA.
     32  */
     33 static struct TALER_MHD_Spa *aml_spa;
     34 
     35 /**
     36  * Resources of the KYC SPA.
     37  */
     38 static struct TALER_MHD_Spa *kyc_spa;
     39 
     40 
     41 MHD_RESULT
     42 TEH_handler_aml_spa (struct TEH_RequestContext *rc,
     43                      const char *const args[])
     44 {
     45   const char *path = args[0];
     46 
     47   return TALER_MHD_spa_handler (aml_spa,
     48                                 rc->connection,
     49                                 path);
     50 }
     51 
     52 
     53 MHD_RESULT
     54 TEH_handler_kyc_spa (struct TEH_RequestContext *rc,
     55                      const char *const args[])
     56 {
     57   const char *path = args[0];
     58   struct TALER_AccountAccessTokenP tok;
     59 
     60   if (NULL == path)
     61   {
     62     GNUNET_break_op (0);
     63     return TALER_MHD_reply_with_error (
     64       rc->connection,
     65       MHD_HTTP_FORBIDDEN,
     66       TALER_EC_GENERIC_TOKEN_PERMISSION_INSUFFICIENT,
     67       "no account access token specified");
     68   }
     69   if (GNUNET_OK ==
     70       GNUNET_STRINGS_string_to_data (path,
     71                                      strlen (path),
     72                                      &tok,
     73                                      sizeof (tok)))
     74   {
     75     /* The access token is used internally by the SPA,
     76        we simply map all access tokens to "index.html" */
     77     path = "index.html";
     78   }
     79   return TALER_MHD_spa_handler (kyc_spa,
     80                                 rc->connection,
     81                                 path);
     82 }
     83 
     84 
     85 enum GNUNET_GenericReturnValue
     86 TEH_spa_init ()
     87 {
     88   aml_spa = TALER_MHD_spa_load (TALER_EXCHANGE_project_data (),
     89                                 "aml-spa/");
     90   if (NULL == aml_spa)
     91   {
     92     GNUNET_break (0);
     93     return GNUNET_SYSERR;
     94   }
     95   kyc_spa = TALER_MHD_spa_load (TALER_EXCHANGE_project_data (),
     96                                 "kyc-spa/");
     97   if (NULL == kyc_spa)
     98   {
     99     GNUNET_break (0);
    100     TALER_MHD_spa_free (aml_spa);
    101     aml_spa = NULL;
    102     return GNUNET_SYSERR;
    103   }
    104   return GNUNET_OK;
    105 }
    106 
    107 
    108 /* Suppresses warning */
    109 void __attribute__ ((destructor))
    110 get_spa_fini (void);
    111 
    112 /**
    113  * Nicely shut down.
    114  */
    115 void __attribute__ ((destructor))
    116 get_spa_fini (void)
    117 {
    118   if (NULL != kyc_spa)
    119   {
    120     TALER_MHD_spa_free (kyc_spa);
    121     kyc_spa = NULL;
    122   }
    123   if (NULL != aml_spa)
    124   {
    125     TALER_MHD_spa_free (aml_spa);
    126     aml_spa = NULL;
    127   }
    128 }