LCOV - code coverage report
Current view: top level - lib - merchant_api_get-private-templates.c (source / functions) Coverage Total Hit
Test: coverage.info Lines: 0.0 % 82 0
Test Date: 2026-04-12 12:58:13 Functions: 0.0 % 5 0

            Line data    Source code
       1              : /*
       2              :   This file is part of TALER
       3              :   Copyright (C) 2022-2026 Taler Systems SA
       4              : 
       5              :   TALER is free software; you can redistribute it and/or modify it under the
       6              :   terms of the GNU Lesser General Public License as published by the Free Software
       7              :   Foundation; either version 2.1, 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 Lesser General Public License for more details.
      12              : 
      13              :   You should have received a copy of the GNU Lesser General Public License along with
      14              :   TALER; see the file COPYING.LGPL.  If not, see
      15              :   <http://www.gnu.org/licenses/>
      16              : */
      17              : /**
      18              :  * @file merchant_api_get-private-templates-new.c
      19              :  * @brief Implementation of the GET /private/templates request
      20              :  * @author Christian Grothoff
      21              :  */
      22              : #include "taler/platform.h"
      23              : #include <curl/curl.h>
      24              : #include <jansson.h>
      25              : #include <microhttpd.h> /* just for HTTP status codes */
      26              : #include <gnunet/gnunet_util_lib.h>
      27              : #include <gnunet/gnunet_curl_lib.h>
      28              : #include <taler/merchant/get-private-templates.h>
      29              : #include "merchant_api_curl_defaults.h"
      30              : #include <taler/taler_json_lib.h>
      31              : 
      32              : 
      33              : /**
      34              :  * Maximum number of templates we return.
      35              :  */
      36              : #define MAX_TEMPLATES 1024
      37              : 
      38              : 
      39              : /**
      40              :  * Handle for a GET /private/templates operation.
      41              :  */
      42              : struct TALER_MERCHANT_GetPrivateTemplatesHandle
      43              : {
      44              :   /**
      45              :    * Base URL of the merchant backend.
      46              :    */
      47              :   char *base_url;
      48              : 
      49              :   /**
      50              :    * The full URL for this request.
      51              :    */
      52              :   char *url;
      53              : 
      54              :   /**
      55              :    * Handle for the request.
      56              :    */
      57              :   struct GNUNET_CURL_Job *job;
      58              : 
      59              :   /**
      60              :    * Function to call with the result.
      61              :    */
      62              :   TALER_MERCHANT_GetPrivateTemplatesCallback cb;
      63              : 
      64              :   /**
      65              :    * Closure for @a cb.
      66              :    */
      67              :   TALER_MERCHANT_GET_PRIVATE_TEMPLATES_RESULT_CLOSURE *cb_cls;
      68              : 
      69              :   /**
      70              :    * Reference to the execution context.
      71              :    */
      72              :   struct GNUNET_CURL_Context *ctx;
      73              : };
      74              : 
      75              : 
      76              : /**
      77              :  * Parse template information from @a ia.
      78              :  *
      79              :  * @param ia JSON array (or NULL!) with template data
      80              :  * @param[in] tgr partially filled response
      81              :  * @param gpth operation handle
      82              :  * @return #GNUNET_OK on success
      83              :  */
      84              : static enum GNUNET_GenericReturnValue
      85            0 : parse_templates (const json_t *ia,
      86              :                  struct TALER_MERCHANT_GetPrivateTemplatesResponse *tgr,
      87              :                  struct TALER_MERCHANT_GetPrivateTemplatesHandle *gpth)
      88              : {
      89            0 :   unsigned int tmpl_len = (unsigned int) json_array_size (ia);
      90              : 
      91            0 :   if ( (json_array_size (ia) != (size_t) tmpl_len) ||
      92              :        (tmpl_len > MAX_TEMPLATES) )
      93              :   {
      94            0 :     GNUNET_break (0);
      95            0 :     return GNUNET_SYSERR;
      96              :   }
      97            0 :   {
      98            0 :     struct TALER_MERCHANT_GetPrivateTemplatesTemplateEntry tmpl[
      99            0 :       GNUNET_NZL (tmpl_len)];
     100              :     size_t index;
     101              :     json_t *value;
     102              : 
     103            0 :     json_array_foreach (ia, index, value) {
     104            0 :       struct TALER_MERCHANT_GetPrivateTemplatesTemplateEntry *ie =
     105              :         &tmpl[index];
     106              :       struct GNUNET_JSON_Specification spec[] = {
     107            0 :         GNUNET_JSON_spec_string ("template_id",
     108              :                                  &ie->template_id),
     109            0 :         GNUNET_JSON_spec_string ("template_description",
     110              :                                  &ie->template_description),
     111            0 :         GNUNET_JSON_spec_end ()
     112              :       };
     113              : 
     114            0 :       if (GNUNET_OK !=
     115            0 :           GNUNET_JSON_parse (value,
     116              :                              spec,
     117              :                              NULL, NULL))
     118              :       {
     119            0 :         GNUNET_break_op (0);
     120            0 :         return GNUNET_SYSERR;
     121              :       }
     122              :     }
     123            0 :     tgr->details.ok.templates_length = tmpl_len;
     124            0 :     tgr->details.ok.templates = tmpl;
     125            0 :     gpth->cb (gpth->cb_cls,
     126              :               tgr);
     127            0 :     gpth->cb = NULL;
     128              :   }
     129            0 :   return GNUNET_OK;
     130              : }
     131              : 
     132              : 
     133              : /**
     134              :  * Function called when we're done processing the
     135              :  * HTTP GET /private/templates request.
     136              :  *
     137              :  * @param cls the `struct TALER_MERCHANT_GetPrivateTemplatesHandle`
     138              :  * @param response_code HTTP response code, 0 on error
     139              :  * @param response response body, NULL if not in JSON
     140              :  */
     141              : static void
     142            0 : handle_get_templates_finished (void *cls,
     143              :                                long response_code,
     144              :                                const void *response)
     145              : {
     146            0 :   struct TALER_MERCHANT_GetPrivateTemplatesHandle *gpth = cls;
     147            0 :   const json_t *json = response;
     148            0 :   struct TALER_MERCHANT_GetPrivateTemplatesResponse tgr = {
     149            0 :     .hr.http_status = (unsigned int) response_code,
     150              :     .hr.reply = json
     151              :   };
     152              : 
     153            0 :   gpth->job = NULL;
     154            0 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
     155              :               "Got /private/templates response with status code %u\n",
     156              :               (unsigned int) response_code);
     157            0 :   switch (response_code)
     158              :   {
     159            0 :   case MHD_HTTP_OK:
     160              :     {
     161              :       const json_t *templates;
     162              :       struct GNUNET_JSON_Specification spec[] = {
     163            0 :         GNUNET_JSON_spec_array_const ("templates",
     164              :                                       &templates),
     165            0 :         GNUNET_JSON_spec_end ()
     166              :       };
     167              : 
     168            0 :       if (GNUNET_OK !=
     169            0 :           GNUNET_JSON_parse (json,
     170              :                              spec,
     171              :                              NULL, NULL))
     172              :       {
     173            0 :         tgr.hr.http_status = 0;
     174            0 :         tgr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     175            0 :         break;
     176              :       }
     177            0 :       if (GNUNET_OK ==
     178            0 :           parse_templates (templates,
     179              :                            &tgr,
     180              :                            gpth))
     181              :       {
     182            0 :         TALER_MERCHANT_get_private_templates_cancel (gpth);
     183            0 :         return;
     184              :       }
     185            0 :       tgr.hr.http_status = 0;
     186            0 :       tgr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     187            0 :       break;
     188              :     }
     189            0 :   case MHD_HTTP_UNAUTHORIZED:
     190            0 :     tgr.hr.ec = TALER_JSON_get_error_code (json);
     191            0 :     tgr.hr.hint = TALER_JSON_get_error_hint (json);
     192            0 :     break;
     193            0 :   default:
     194            0 :     tgr.hr.ec = TALER_JSON_get_error_code (json);
     195            0 :     tgr.hr.hint = TALER_JSON_get_error_hint (json);
     196            0 :     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     197              :                 "Unexpected response code %u/%d\n",
     198              :                 (unsigned int) response_code,
     199              :                 (int) tgr.hr.ec);
     200            0 :     break;
     201              :   }
     202            0 :   gpth->cb (gpth->cb_cls,
     203              :             &tgr);
     204            0 :   TALER_MERCHANT_get_private_templates_cancel (gpth);
     205              : }
     206              : 
     207              : 
     208              : struct TALER_MERCHANT_GetPrivateTemplatesHandle *
     209            0 : TALER_MERCHANT_get_private_templates_create (
     210              :   struct GNUNET_CURL_Context *ctx,
     211              :   const char *url)
     212              : {
     213              :   struct TALER_MERCHANT_GetPrivateTemplatesHandle *gpth;
     214              : 
     215            0 :   gpth = GNUNET_new (struct TALER_MERCHANT_GetPrivateTemplatesHandle);
     216            0 :   gpth->ctx = ctx;
     217            0 :   gpth->base_url = GNUNET_strdup (url);
     218            0 :   return gpth;
     219              : }
     220              : 
     221              : 
     222              : enum TALER_ErrorCode
     223            0 : TALER_MERCHANT_get_private_templates_start (
     224              :   struct TALER_MERCHANT_GetPrivateTemplatesHandle *gpth,
     225              :   TALER_MERCHANT_GetPrivateTemplatesCallback cb,
     226              :   TALER_MERCHANT_GET_PRIVATE_TEMPLATES_RESULT_CLOSURE *cb_cls)
     227              : {
     228              :   CURL *eh;
     229              : 
     230            0 :   gpth->cb = cb;
     231            0 :   gpth->cb_cls = cb_cls;
     232            0 :   gpth->url = TALER_url_join (gpth->base_url,
     233              :                               "private/templates",
     234              :                               NULL);
     235            0 :   if (NULL == gpth->url)
     236            0 :     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
     237            0 :   eh = TALER_MERCHANT_curl_easy_get_ (gpth->url);
     238            0 :   if (NULL == eh)
     239            0 :     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
     240            0 :   gpth->job = GNUNET_CURL_job_add (gpth->ctx,
     241              :                                    eh,
     242              :                                    &handle_get_templates_finished,
     243              :                                    gpth);
     244            0 :   if (NULL == gpth->job)
     245            0 :     return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
     246            0 :   return TALER_EC_NONE;
     247              : }
     248              : 
     249              : 
     250              : void
     251            0 : TALER_MERCHANT_get_private_templates_cancel (
     252              :   struct TALER_MERCHANT_GetPrivateTemplatesHandle *gpth)
     253              : {
     254            0 :   if (NULL != gpth->job)
     255              :   {
     256            0 :     GNUNET_CURL_job_cancel (gpth->job);
     257            0 :     gpth->job = NULL;
     258              :   }
     259            0 :   GNUNET_free (gpth->url);
     260            0 :   GNUNET_free (gpth->base_url);
     261            0 :   GNUNET_free (gpth);
     262            0 : }
     263              : 
     264              : 
     265              : /* end of merchant_api_get-private-templates-new.c */
        

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