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Base system with REST service to issue digital coins, run by the payment service provider
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testing_api_cmd_exec_wget.c (3921B)

      1 /*
      2   This file is part of TALER
      3   Copyright (C) 2023 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify
      6   it under the terms of the GNU General Public License as
      7   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, see
     17   <http://www.gnu.org/licenses/>
     18 */
     19 /**
     20  * @file testing/testing_api_cmd_exec_wget.c
     21  * @brief run a wget command
     22  * @author Christian Grothoff
     23  */
     24 #include "taler/platform.h"
     25 #include "taler/taler_json_lib.h"
     26 #include <gnunet/gnunet_curl_lib.h>
     27 #include "taler/taler_signatures.h"
     28 #include "taler/taler_testing_lib.h"
     29 
     30 
     31 /**
     32  * State for a "wget" CMD.
     33  */
     34 struct WgetState
     35 {
     36   /**
     37    * Process for the wgeter.
     38    */
     39   struct GNUNET_Process *wget_proc;
     40 
     41   /**
     42    * URL to used by the wget.
     43    */
     44   const char *url;
     45 };
     46 
     47 
     48 /**
     49  * Run the command; use the `wget` program.
     50  *
     51  * @param cls closure.
     52  * @param cmd command currently being executed.
     53  * @param is interpreter state.
     54  */
     55 static void
     56 wget_run (void *cls,
     57           const struct TALER_TESTING_Command *cmd,
     58           struct TALER_TESTING_Interpreter *is)
     59 {
     60   struct WgetState *ws = cls;
     61 
     62   (void) cmd;
     63   ws->wget_proc = GNUNET_process_create (GNUNET_OS_INHERIT_STD_ERR);
     64   if (GNUNET_OK !=
     65       GNUNET_process_run_command_va (ws->wget_proc,
     66                                      "wget",
     67                                      "wget",
     68                                      ws->url,
     69                                      NULL))
     70   {
     71     GNUNET_break (0);
     72     GNUNET_process_destroy (ws->wget_proc);
     73     ws->wget_proc = NULL;
     74     TALER_TESTING_interpreter_fail (is);
     75     return;
     76   }
     77   TALER_TESTING_wait_for_sigchld (is);
     78 }
     79 
     80 
     81 /**
     82  * Free the state of a "wget" CMD, and possibly
     83  * kills its process if it did not terminate regularly.
     84  *
     85  * @param cls closure.
     86  * @param cmd the command being freed.
     87  */
     88 static void
     89 wget_cleanup (void *cls,
     90               const struct TALER_TESTING_Command *cmd)
     91 {
     92   struct WgetState *ws = cls;
     93 
     94   (void) cmd;
     95   if (NULL != ws->wget_proc)
     96   {
     97     GNUNET_break (GNUNET_OK ==
     98                   GNUNET_process_kill (ws->wget_proc,
     99                                        SIGKILL));
    100     GNUNET_process_wait (ws->wget_proc,
    101                          true,
    102                          NULL,
    103                          NULL);
    104     GNUNET_process_destroy (ws->wget_proc);
    105     ws->wget_proc = NULL;
    106   }
    107   GNUNET_free (ws);
    108 }
    109 
    110 
    111 /**
    112  * Offer "wget" CMD internal data to other commands.
    113  *
    114  * @param cls closure.
    115  * @param[out] ret result.
    116  * @param trait name of the trait.
    117  * @param index index number of the object to offer.
    118  * @return #GNUNET_OK on success.
    119  */
    120 static enum GNUNET_GenericReturnValue
    121 wget_traits (void *cls,
    122              const void **ret,
    123              const char *trait,
    124              unsigned int index)
    125 {
    126   struct WgetState *ws = cls;
    127   struct TALER_TESTING_Trait traits[] = {
    128     TALER_TESTING_make_trait_process (&ws->wget_proc),
    129     TALER_TESTING_trait_end ()
    130   };
    131 
    132   return TALER_TESTING_get_trait (traits,
    133                                   ret,
    134                                   trait,
    135                                   index);
    136 }
    137 
    138 
    139 struct TALER_TESTING_Command
    140 TALER_TESTING_cmd_exec_wget (const char *label,
    141                              const char *url)
    142 {
    143   struct WgetState *ws;
    144 
    145   ws = GNUNET_new (struct WgetState);
    146   ws->url = url;
    147 
    148   {
    149     struct TALER_TESTING_Command cmd = {
    150       .cls = ws,
    151       .label = label,
    152       .run = &wget_run,
    153       .cleanup = &wget_cleanup,
    154       .traits = &wget_traits
    155     };
    156 
    157     return cmd;
    158   }
    159 }
    160 
    161 
    162 /* end of testing_api_cmd_exec_wget.c */