merchant

testing_api_cmd_get_product_image.c (5606B)

---

 /*
   This file is part of TALER
   Copyright (C) 2025 Taler Systems SA
 
   TALER is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 3, or
   (at your option) any later version.
 
   TALER is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public
   License along with TALER; see the file COPYING.  If not, see
   <http://www.gnu.org/licenses/>
 */
 /**
  * @file testing_api_cmd_get_product_image.c
  * @brief command to test GET /products/$HASH/image
  * @author Bohdan Potuzhnyi
  */
 #include "platform.h"
 #include <taler/taler_exchange_service.h>
 #include <taler/taler_testing_lib.h>
 #include "taler_merchant_service.h"
 #include "taler_merchant_testing_lib.h"
 
 
 /**
  * State of a "GET product image" CMD.
  */
 struct GetProductImageState
 {
   /**
    * Handle for a "GET product image" request.
    */
   struct TALER_MERCHANT_ProductImageGetHandle *pigh;
 
   /**
    * The interpreter state.
    */
   struct TALER_TESTING_Interpreter *is;
 
   /**
    * Base URL of the merchant serving the request.
    */
   const char *merchant_url;
 
   /**
    * Reference for a POST or PATCH /products CMD (optional).
    */
   const char *product_reference;
 
   /**
    * Expected HTTP response code.
    */
   unsigned int http_status;
 
   /**
    * Expected image as a data URL.
    */
   char *expected_image;
 
   /**
    * Hash over the expected image, lowercase hex encoding.
    */
   const char *image_hash;
 };
 
 
 /**
  * Callback for a /products/$HASH/image operation.
  *
  * @param cls closure for this function
  * @param pir response details
  */
 static void
 get_product_image_cb (void *cls,
                       const struct TALER_MERCHANT_ProductImageGetResponse *pir)
 {
   struct GetProductImageState *gis = cls;
 
   gis->pigh = NULL;
   if (gis->http_status != pir->hr.http_status)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                 "Unexpected response code %u (%d) to command %s\n",
                 pir->hr.http_status,
                 (int) pir->hr.ec,
                 TALER_TESTING_interpreter_get_current_label (gis->is));
     TALER_TESTING_interpreter_fail (gis->is);
     return;
   }
   switch (pir->hr.http_status)
   {
   case MHD_HTTP_OK:
     if (NULL != gis->expected_image)
     {
       if (0 != strcmp (pir->details.ok.image,
                        gis->expected_image))
       {
         GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                     "Product image did not match expected value\n");
         TALER_TESTING_interpreter_fail (gis->is);
         return;
       }
     }
     break;
   default:
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                 "Unhandled HTTP status.\n");
   }
   TALER_TESTING_interpreter_next (gis->is);
 }
 
 
 /**
  * Run the "GET product image" CMD.
  *
  * @param cls closure.
  * @param cmd command being run now.
  * @param is interpreter state.
  */
 static void
 get_product_image_run (void *cls,
                        const struct TALER_TESTING_Command *cmd,
                        struct TALER_TESTING_Interpreter *is)
 {
   struct GetProductImageState *gis = cls;
   const struct TALER_TESTING_Command *product_cmd;
 
   gis->is = is;
   gis->expected_image = NULL;
   if (NULL != gis->product_reference)
   {
     const char *product_image;
 
     product_cmd = TALER_TESTING_interpreter_lookup_command (
       is,
       gis->product_reference);
     if (NULL == product_cmd)
     {
       GNUNET_break (0);
       TALER_TESTING_interpreter_fail (is);
       return;
     }
     if (GNUNET_OK !=
         TALER_TESTING_get_trait_product_image (product_cmd,
                                                &product_image))
     {
       TALER_TESTING_interpreter_fail (is);
       return;
     }
     gis->expected_image = GNUNET_strdup (product_image);
   }
   gis->pigh
     = TALER_MERCHANT_product_image_get (
         TALER_TESTING_interpreter_get_context (is),
         gis->merchant_url,
         gis->image_hash,
         &get_product_image_cb,
         gis);
   GNUNET_assert (NULL != gis->pigh);
 }
 
 
 /**
  * Free the state of a "GET product image" CMD, and possibly
  * cancel a pending operation thereof.
  *
  * @param cls closure.
  * @param cmd command being run.
  */
 static void
 get_product_image_cleanup (void *cls,
                            const struct TALER_TESTING_Command *cmd)
 {
   struct GetProductImageState *gis = cls;
 
   if (NULL != gis->pigh)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                 "GET /products/$HASH/image operation did not complete\n");
     TALER_MERCHANT_product_image_get_cancel (gis->pigh);
   }
   GNUNET_free (gis->expected_image);
   GNUNET_free (gis);
 }
 
 
 struct TALER_TESTING_Command
 TALER_TESTING_cmd_get_product_image (const char *label,
                                      const char *merchant_url,
                                      const char *product_reference,
                                      const char *image_hash,
                                      unsigned int http_status)
 {
   struct GetProductImageState *gis;
 
   gis = GNUNET_new (struct GetProductImageState);
   gis->merchant_url = merchant_url;
   gis->product_reference = product_reference;
   gis->http_status = http_status;
   gis->image_hash = image_hash;
   {
     struct TALER_TESTING_Command cmd = {
       .cls = gis,
       .label = label,
       .run = &get_product_image_run,
       .cleanup = &get_product_image_cleanup
     };
 
     return cmd;
   }
 }