LCOV - code coverage report
Current view: top level - lib - merchant_api_get-private-webhooks.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-webhooks-new.c
      19              :  * @brief Implementation of the GET /private/webhooks 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-webhooks.h>
      29              : #include "merchant_api_curl_defaults.h"
      30              : #include <taler/taler_json_lib.h>
      31              : 
      32              : 
      33              : /**
      34              :  * Maximum number of webhooks permitted.
      35              :  */
      36              : #define MAX_WEBHOOKS 1024
      37              : 
      38              : 
      39              : /**
      40              :  * Handle for a GET /private/webhooks operation.
      41              :  */
      42              : struct TALER_MERCHANT_GetPrivateWebhooksHandle
      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_GetPrivateWebhooksCallback cb;
      63              : 
      64              :   /**
      65              :    * Closure for @a cb.
      66              :    */
      67              :   TALER_MERCHANT_GET_PRIVATE_WEBHOOKS_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 webhook information from @a ia.
      78              :  *
      79              :  * @param ia JSON array (or NULL!) with webhook data
      80              :  * @param[in] wgr partially filled webhook response
      81              :  * @param gpwh operation handle
      82              :  * @return #GNUNET_OK on success
      83              :  */
      84              : static enum GNUNET_GenericReturnValue
      85            0 : parse_webhooks (const json_t *ia,
      86              :                 struct TALER_MERCHANT_GetPrivateWebhooksResponse *wgr,
      87              :                 struct TALER_MERCHANT_GetPrivateWebhooksHandle *gpwh)
      88              : {
      89            0 :   unsigned int whook_len = (unsigned int) json_array_size (ia);
      90              : 
      91            0 :   if ( (json_array_size (ia) != (size_t) whook_len) ||
      92              :        (whook_len > MAX_WEBHOOKS) )
      93              :   {
      94            0 :     GNUNET_break (0);
      95            0 :     return GNUNET_SYSERR;
      96              :   }
      97            0 :   {
      98            0 :     struct TALER_MERCHANT_GetPrivateWebhooksWebhookEntry whook[
      99            0 :       GNUNET_NZL (whook_len)];
     100              :     size_t index;
     101              :     json_t *value;
     102              : 
     103            0 :     json_array_foreach (ia, index, value) {
     104            0 :       struct TALER_MERCHANT_GetPrivateWebhooksWebhookEntry *ie =
     105              :         &whook[index];
     106              :       struct GNUNET_JSON_Specification spec[] = {
     107            0 :         GNUNET_JSON_spec_string ("webhook_id",
     108              :                                  &ie->webhook_id),
     109            0 :         GNUNET_JSON_spec_string ("event_type",
     110              :                                  &ie->event_type),
     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 :     wgr->details.ok.webhooks_length = whook_len;
     124            0 :     wgr->details.ok.webhooks = whook;
     125            0 :     gpwh->cb (gpwh->cb_cls,
     126              :               wgr);
     127            0 :     gpwh->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/webhooks request.
     136              :  *
     137              :  * @param cls the `struct TALER_MERCHANT_GetPrivateWebhooksHandle`
     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_webhooks_finished (void *cls,
     143              :                               long response_code,
     144              :                               const void *response)
     145              : {
     146            0 :   struct TALER_MERCHANT_GetPrivateWebhooksHandle *gpwh = cls;
     147            0 :   const json_t *json = response;
     148            0 :   struct TALER_MERCHANT_GetPrivateWebhooksResponse wgr = {
     149            0 :     .hr.http_status = (unsigned int) response_code,
     150              :     .hr.reply = json
     151              :   };
     152              : 
     153            0 :   gpwh->job = NULL;
     154            0 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
     155              :               "Got /private/webhooks 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 *webhooks;
     162              :       struct GNUNET_JSON_Specification spec[] = {
     163            0 :         GNUNET_JSON_spec_array_const ("webhooks",
     164              :                                       &webhooks),
     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 :         wgr.hr.http_status = 0;
     174            0 :         wgr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     175            0 :         break;
     176              :       }
     177            0 :       if (GNUNET_OK ==
     178            0 :           parse_webhooks (webhooks,
     179              :                           &wgr,
     180              :                           gpwh))
     181              :       {
     182            0 :         TALER_MERCHANT_get_private_webhooks_cancel (gpwh);
     183            0 :         return;
     184              :       }
     185            0 :       wgr.hr.http_status = 0;
     186            0 :       wgr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
     187            0 :       break;
     188              :     }
     189            0 :   case MHD_HTTP_UNAUTHORIZED:
     190            0 :     wgr.hr.ec = TALER_JSON_get_error_code (json);
     191            0 :     wgr.hr.hint = TALER_JSON_get_error_hint (json);
     192              :     /* Nothing really to verify, merchant says we need to authenticate. */
     193            0 :     break;
     194            0 :   default:
     195              :     /* unexpected response code */
     196            0 :     wgr.hr.ec = TALER_JSON_get_error_code (json);
     197            0 :     wgr.hr.hint = TALER_JSON_get_error_hint (json);
     198            0 :     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     199              :                 "Unexpected response code %u/%d\n",
     200              :                 (unsigned int) response_code,
     201              :                 (int) wgr.hr.ec);
     202            0 :     break;
     203              :   }
     204            0 :   gpwh->cb (gpwh->cb_cls,
     205              :             &wgr);
     206            0 :   TALER_MERCHANT_get_private_webhooks_cancel (gpwh);
     207              : }
     208              : 
     209              : 
     210              : struct TALER_MERCHANT_GetPrivateWebhooksHandle *
     211            0 : TALER_MERCHANT_get_private_webhooks_create (
     212              :   struct GNUNET_CURL_Context *ctx,
     213              :   const char *url)
     214              : {
     215              :   struct TALER_MERCHANT_GetPrivateWebhooksHandle *gpwh;
     216              : 
     217            0 :   gpwh = GNUNET_new (struct TALER_MERCHANT_GetPrivateWebhooksHandle);
     218            0 :   gpwh->ctx = ctx;
     219            0 :   gpwh->base_url = GNUNET_strdup (url);
     220            0 :   return gpwh;
     221              : }
     222              : 
     223              : 
     224              : enum TALER_ErrorCode
     225            0 : TALER_MERCHANT_get_private_webhooks_start (
     226              :   struct TALER_MERCHANT_GetPrivateWebhooksHandle *gpwh,
     227              :   TALER_MERCHANT_GetPrivateWebhooksCallback cb,
     228              :   TALER_MERCHANT_GET_PRIVATE_WEBHOOKS_RESULT_CLOSURE *cb_cls)
     229              : {
     230              :   CURL *eh;
     231              : 
     232            0 :   gpwh->cb = cb;
     233            0 :   gpwh->cb_cls = cb_cls;
     234            0 :   gpwh->url = TALER_url_join (gpwh->base_url,
     235              :                               "private/webhooks",
     236              :                               NULL);
     237            0 :   if (NULL == gpwh->url)
     238            0 :     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
     239            0 :   eh = TALER_MERCHANT_curl_easy_get_ (gpwh->url);
     240            0 :   if (NULL == eh)
     241            0 :     return TALER_EC_GENERIC_CONFIGURATION_INVALID;
     242            0 :   gpwh->job = GNUNET_CURL_job_add (gpwh->ctx,
     243              :                                    eh,
     244              :                                    &handle_get_webhooks_finished,
     245              :                                    gpwh);
     246            0 :   if (NULL == gpwh->job)
     247            0 :     return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
     248            0 :   return TALER_EC_NONE;
     249              : }
     250              : 
     251              : 
     252              : void
     253            0 : TALER_MERCHANT_get_private_webhooks_cancel (
     254              :   struct TALER_MERCHANT_GetPrivateWebhooksHandle *gpwh)
     255              : {
     256            0 :   if (NULL != gpwh->job)
     257              :   {
     258            0 :     GNUNET_CURL_job_cancel (gpwh->job);
     259            0 :     gpwh->job = NULL;
     260              :   }
     261            0 :   GNUNET_free (gpwh->url);
     262            0 :   GNUNET_free (gpwh->base_url);
     263            0 :   GNUNET_free (gpwh);
     264            0 : }
     265              : 
     266              : 
     267              : /* end of merchant_api_get-private-webhooks-new.c */
        

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