LCOV - code coverage report
Current view: top level - lib - merchant_api_post-templates-TEMPLATE_ID.c (source / functions) Coverage Total Hit
Test: coverage.info Lines: 0.0 % 118 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
       6              :   it under the terms of the GNU Lesser General Public License as
       7              :   published by the Free Software Foundation; either version 2.1,
       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 Lesser General Public License for more details.
      14              : 
      15              :   You should have received a copy of the GNU Lesser General
      16              :   Public License along with TALER; see the file COPYING.LGPL.
      17              :   If not, see <http://www.gnu.org/licenses/>
      18              : */
      19              : /**
      20              :  * @file merchant_api_post-templates-TEMPLATE_ID-new.c
      21              :  * @brief Implementation of the POST /templates/$TEMPLATE_ID request
      22              :  * @author Christian Grothoff
      23              :  */
      24              : #include "taler/platform.h"
      25              : #include <curl/curl.h>
      26              : #include <jansson.h>
      27              : #include <microhttpd.h> /* just for HTTP status codes */
      28              : #include <gnunet/gnunet_util_lib.h>
      29              : #include <gnunet/gnunet_curl_lib.h>
      30              : #include <taler/merchant/post-templates-TEMPLATE_ID.h>
      31              : #include "merchant_api_curl_defaults.h"
      32              : #include "merchant_api_common.h"
      33              : #include <taler/taler_json_lib.h>
      34              : #include <taler/taler_curl_lib.h>
      35              : 
      36              : 
      37              : /**
      38              :  * Handle for a POST /templates/$TEMPLATE_ID operation.
      39              :  */
      40              : struct TALER_MERCHANT_PostTemplatesHandle
      41              : {
      42              :   /**
      43              :    * Base URL of the merchant backend.
      44              :    */
      45              :   char *base_url;
      46              : 
      47              :   /**
      48              :    * The full URL for this request.
      49              :    */
      50              :   char *url;
      51              : 
      52              :   /**
      53              :    * Handle for the request.
      54              :    */
      55              :   struct GNUNET_CURL_Job *job;
      56              : 
      57              :   /**
      58              :    * Function to call with the result.
      59              :    */
      60              :   TALER_MERCHANT_PostTemplatesCallback cb;
      61              : 
      62              :   /**
      63              :    * Closure for @a cb.
      64              :    */
      65              :   TALER_MERCHANT_POST_TEMPLATES_RESULT_CLOSURE *cb_cls;
      66              : 
      67              :   /**
      68              :    * Reference to the execution context.
      69              :    */
      70              :   struct GNUNET_CURL_Context *ctx;
      71              : 
      72              :   /**
      73              :    * Minor context that holds body and headers.
      74              :    */
      75              :   struct TALER_CURL_PostContext post_ctx;
      76              : 
      77              :   /**
      78              :    * Template identifier.
      79              :    */
      80              :   char *template_id;
      81              : 
      82              :   /**
      83              :    * Optional summary string.
      84              :    */
      85              :   const char *summary;
      86              : 
      87              :   /**
      88              :    * Optional amount.
      89              :    */
      90              :   const struct TALER_Amount *amount;
      91              : 
      92              :   /**
      93              :    * Optional detailed contract customization (JSON).
      94              :    */
      95              :   const json_t *details;
      96              : };
      97              : 
      98              : 
      99              : /**
     100              :  * Function called when we're done processing the
     101              :  * HTTP POST /templates/$TEMPLATE_ID request.
     102              :  *
     103              :  * @param cls the `struct TALER_MERCHANT_PostTemplatesHandle`
     104              :  * @param response_code HTTP response code, 0 on error
     105              :  * @param response response body, NULL if not in JSON
     106              :  */
     107              : static void
     108            0 : handle_post_templates_finished (void *cls,
     109              :                                 long response_code,
     110              :                                 const void *response)
     111              : {
     112            0 :   struct TALER_MERCHANT_PostTemplatesHandle *pth = cls;
     113            0 :   const json_t *json = response;
     114            0 :   struct TALER_MERCHANT_PostTemplatesResponse ptr = {
     115            0 :     .hr.http_status = (unsigned int) response_code,
     116              :     .hr.reply = json
     117              :   };
     118              :   struct TALER_ClaimTokenP token;
     119              : 
     120            0 :   pth->job = NULL;
     121            0 :   switch (response_code)
     122              :   {
     123            0 :   case 0:
     124            0 :     ptr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     125            0 :     break;
     126            0 :   case MHD_HTTP_OK:
     127              :     {
     128              :       bool no_token;
     129              :       bool no_pay_deadline;
     130              :       struct GNUNET_JSON_Specification spec[] = {
     131            0 :         GNUNET_JSON_spec_string ("order_id",
     132              :                                  &ptr.details.ok.order_id),
     133            0 :         GNUNET_JSON_spec_mark_optional (
     134              :           GNUNET_JSON_spec_fixed_auto ("token",
     135              :                                        &token),
     136              :           &no_token),
     137            0 :         GNUNET_JSON_spec_mark_optional (
     138              :           GNUNET_JSON_spec_timestamp ("pay_deadline",
     139              :                                       &ptr.details.ok.pay_deadline),
     140              :           &no_pay_deadline),
     141            0 :         GNUNET_JSON_spec_end ()
     142              :       };
     143              : 
     144            0 :       if (GNUNET_OK !=
     145            0 :           GNUNET_JSON_parse (json,
     146              :                              spec,
     147              :                              NULL, NULL))
     148              :       {
     149            0 :         GNUNET_break_op (0);
     150            0 :         ptr.hr.http_status = 0;
     151            0 :         ptr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     152            0 :         break;
     153              :       }
     154            0 :       if (! no_token)
     155            0 :         ptr.details.ok.token = &token;
     156            0 :       if (no_pay_deadline)
     157            0 :         ptr.details.ok.pay_deadline = GNUNET_TIME_UNIT_ZERO_TS;
     158            0 :       break;
     159              :     }
     160            0 :   case MHD_HTTP_BAD_REQUEST:
     161            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     162            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     163            0 :     break;
     164            0 :   case MHD_HTTP_UNAUTHORIZED:
     165            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     166            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     167            0 :     break;
     168            0 :   case MHD_HTTP_FORBIDDEN:
     169            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     170            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     171            0 :     break;
     172            0 :   case MHD_HTTP_NOT_FOUND:
     173            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     174            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     175            0 :     break;
     176            0 :   case MHD_HTTP_CONFLICT:
     177            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     178            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     179            0 :     break;
     180            0 :   case MHD_HTTP_INTERNAL_SERVER_ERROR:
     181            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     182            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     183            0 :     break;
     184            0 :   default:
     185            0 :     ptr.hr.ec = TALER_JSON_get_error_code (json);
     186            0 :     ptr.hr.hint = TALER_JSON_get_error_hint (json);
     187            0 :     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     188              :                 "Unexpected response code %u/%d\n",
     189              :                 (unsigned int) response_code,
     190              :                 (int) ptr.hr.ec);
     191            0 :     GNUNET_break_op (0);
     192            0 :     break;
     193              :   }
     194            0 :   pth->cb (pth->cb_cls,
     195              :            &ptr);
     196            0 :   TALER_MERCHANT_post_templates_cancel (pth);
     197            0 : }
     198              : 
     199              : 
     200              : struct TALER_MERCHANT_PostTemplatesHandle *
     201            0 : TALER_MERCHANT_post_templates_create (
     202              :   struct GNUNET_CURL_Context *ctx,
     203              :   const char *url,
     204              :   const char *template_id)
     205              : {
     206              :   struct TALER_MERCHANT_PostTemplatesHandle *pth;
     207              : 
     208            0 :   pth = GNUNET_new (struct TALER_MERCHANT_PostTemplatesHandle);
     209            0 :   pth->ctx = ctx;
     210            0 :   pth->base_url = GNUNET_strdup (url);
     211            0 :   pth->template_id = GNUNET_strdup (template_id);
     212            0 :   return pth;
     213              : }
     214              : 
     215              : 
     216              : enum GNUNET_GenericReturnValue
     217            0 : TALER_MERCHANT_post_templates_set_options_ (
     218              :   struct TALER_MERCHANT_PostTemplatesHandle *pth,
     219              :   unsigned int num_options,
     220              :   const struct TALER_MERCHANT_PostTemplatesOptionValue *options)
     221              : {
     222            0 :   for (unsigned int i = 0; i < num_options; i++)
     223              :   {
     224            0 :     switch (options[i].option)
     225              :     {
     226            0 :     case TALER_MERCHANT_POST_TEMPLATES_OPTION_END:
     227            0 :       return GNUNET_OK;
     228            0 :     case TALER_MERCHANT_POST_TEMPLATES_OPTION_SUMMARY:
     229            0 :       pth->summary = options[i].details.summary;
     230            0 :       break;
     231            0 :     case TALER_MERCHANT_POST_TEMPLATES_OPTION_AMOUNT:
     232            0 :       pth->amount = options[i].details.amount;
     233            0 :       break;
     234            0 :     case TALER_MERCHANT_POST_TEMPLATES_OPTION_DETAILS:
     235            0 :       pth->details = options[i].details.details;
     236            0 :       break;
     237            0 :     default:
     238            0 :       GNUNET_break (0);
     239            0 :       return GNUNET_SYSERR;
     240              :     }
     241              :   }
     242            0 :   return GNUNET_OK;
     243              : }
     244              : 
     245              : 
     246              : enum TALER_ErrorCode
     247            0 : TALER_MERCHANT_post_templates_start (
     248              :   struct TALER_MERCHANT_PostTemplatesHandle *pth,
     249              :   TALER_MERCHANT_PostTemplatesCallback cb,
     250              :   TALER_MERCHANT_POST_TEMPLATES_RESULT_CLOSURE *cb_cls)
     251              : {
     252              :   json_t *req_obj;
     253              :   CURL *eh;
     254              : 
     255            0 :   pth->cb = cb;
     256            0 :   pth->cb_cls = cb_cls;
     257              :   {
     258              :     char *path;
     259              : 
     260            0 :     GNUNET_asprintf (&path,
     261              :                      "templates/%s",
     262              :                      pth->template_id);
     263            0 :     pth->url = TALER_url_join (pth->base_url,
     264              :                                path,
     265              :                                NULL);
     266            0 :     GNUNET_free (path);
     267              :   }
     268            0 :   if (NULL == pth->url)
     269            0 :     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
     270            0 :   if (NULL != pth->details)
     271              :   {
     272              :     /* If detailed contract customization is provided, send it directly. */
     273            0 :     req_obj = json_incref ((json_t *) pth->details);
     274              :   }
     275              :   else
     276              :   {
     277              :     /* Build fixed-order request with optional summary and amount. */
     278            0 :     req_obj = GNUNET_JSON_PACK (
     279              :       GNUNET_JSON_pack_string ("template_type",
     280              :                                "fixed-order"),
     281              :       GNUNET_JSON_pack_allow_null (
     282              :         GNUNET_JSON_pack_string ("summary",
     283              :                                  pth->summary)),
     284              :       GNUNET_JSON_pack_allow_null (
     285              :         TALER_JSON_pack_amount ("amount",
     286              :                                 pth->amount)));
     287              :   }
     288            0 :   eh = TALER_MERCHANT_curl_easy_get_ (pth->url);
     289            0 :   if ( (NULL == eh) ||
     290              :        (GNUNET_OK !=
     291            0 :         TALER_curl_easy_post (&pth->post_ctx,
     292              :                               eh,
     293              :                               req_obj)) )
     294              :   {
     295            0 :     GNUNET_break (0);
     296            0 :     json_decref (req_obj);
     297            0 :     if (NULL != eh)
     298            0 :       curl_easy_cleanup (eh);
     299            0 :     return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
     300              :   }
     301            0 :   json_decref (req_obj);
     302            0 :   pth->job = GNUNET_CURL_job_add2 (pth->ctx,
     303              :                                    eh,
     304            0 :                                    pth->post_ctx.headers,
     305              :                                    &handle_post_templates_finished,
     306              :                                    pth);
     307            0 :   if (NULL == pth->job)
     308            0 :     return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
     309            0 :   return TALER_EC_NONE;
     310              : }
     311              : 
     312              : 
     313              : void
     314            0 : TALER_MERCHANT_post_templates_cancel (
     315              :   struct TALER_MERCHANT_PostTemplatesHandle *pth)
     316              : {
     317            0 :   if (NULL != pth->job)
     318              :   {
     319            0 :     GNUNET_CURL_job_cancel (pth->job);
     320            0 :     pth->job = NULL;
     321              :   }
     322            0 :   TALER_curl_easy_post_finished (&pth->post_ctx);
     323            0 :   GNUNET_free (pth->template_id);
     324            0 :   GNUNET_free (pth->url);
     325            0 :   GNUNET_free (pth->base_url);
     326            0 :   GNUNET_free (pth);
     327            0 : }
     328              : 
     329              : 
     330              : /* end of merchant_api_post-templates-TEMPLATE_ID-new.c */
        

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