From 37cad4c26b8c37ce12843965fcc9334e998923ab Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 14 Apr 2022 18:59:31 +0200
Subject: -remove currency-based provider selection

---
 src/reducer/anastasis_api_redux.c | 77 ++++++++++++---------------------------
 1 file changed, 23 insertions(+), 54 deletions(-)

(limited to 'src/reducer/anastasis_api_redux.c')

diff --git a/src/reducer/anastasis_api_redux.c b/src/reducer/anastasis_api_redux.c
index b9d18ab..5dde4c6 100644
--- a/src/reducer/anastasis_api_redux.c
+++ b/src/reducer/anastasis_api_redux.c
@@ -151,11 +151,6 @@ struct ConfigRequest
    */
   char *business_name;
 
-  /**
-   * currency used by the anastasis backend.
-   */
-  char *currency;
-
   /**
    * Array of authorization methods supported by the server.
    */
@@ -366,7 +361,6 @@ free_config_request (struct ConfigRequest *cr)
     ANASTASIS_config_cancel (cr->co);
   if (NULL != cr->tt)
     GNUNET_SCHEDULER_cancel (cr->tt);
-  GNUNET_free (cr->currency);
   GNUNET_free (cr->url);
   GNUNET_free (cr->business_name);
   for (unsigned int i = 0; i<cr->methods_length; i++)
@@ -533,8 +527,6 @@ notify_waiting (struct ConfigRequest *cr)
                                 &cr->truth_upload_fee),
         TALER_JSON_pack_amount ("liability_limit",
                                 &cr->liability_limit),
-        GNUNET_JSON_pack_string ("currency",
-                                 cr->currency),
         GNUNET_JSON_pack_string ("business_name",
                                  cr->business_name),
         GNUNET_JSON_pack_uint64 ("storage_limit_in_megabytes",
@@ -598,8 +590,6 @@ config_cb (void *cls,
     else
     {
       cr->ec = TALER_EC_NONE;
-      GNUNET_free (cr->currency);
-      cr->currency = GNUNET_strdup (acfg->currency);
       GNUNET_free (cr->business_name);
       cr->business_name = GNUNET_strdup (acfg->business_name);
       for (unsigned int i = 0; i<cr->methods_length; i++)
@@ -693,12 +683,12 @@ check_config (const char *url)
 /**
  * Begin asynchronous check for provider configurations.
  *
- * @param currencies the currencies to initiate the provider checks for
+ * @param cc country code that was selected
  * @param[in,out] state to set provider list for
  * @return #TALER_EC_NONE on success
  */
 static enum TALER_ErrorCode
-begin_provider_config_check (const json_t *currencies,
+begin_provider_config_check (const char *cc,
                              json_t *state)
 {
   if (NULL == provider_list)
@@ -746,12 +736,14 @@ begin_provider_config_check (const json_t *currencies,
     json_array_foreach (provider_arr, index, provider)
     {
       const char *url;
-      const char *cur;
+      const char *restricted = NULL;
       struct GNUNET_JSON_Specification spec[] = {
         GNUNET_JSON_spec_string ("url",
                                  &url),
-        GNUNET_JSON_spec_string ("currency",
-                                 &cur),
+        GNUNET_JSON_spec_mark_optional (
+          GNUNET_JSON_spec_string ("restricted",
+                                   &restricted),
+          NULL),
         GNUNET_JSON_spec_end ()
       };
       json_t *prov;
@@ -765,27 +757,21 @@ begin_provider_config_check (const json_t *currencies,
         json_decref (pl);
         return TALER_EC_ANASTASIS_REDUCER_RESOURCE_MALFORMED;
       }
-
+      if ( (NULL != restricted) &&
+           (0 != strcmp (restricted,
+                         cc)) )
       {
-        bool found = false;
-        json_t *cu;
-        size_t off;
-
-        json_array_foreach (currencies, off, cu)
-        {
-          const char *currency;
-
-          currency = json_string_value (cu);
-          if (NULL == currency)
-          {
-            json_decref (pl);
-            return TALER_EC_ANASTASIS_REDUCER_INPUT_INVALID;
-          }
-          found = (0 == strcasecmp (currency,
-                                    cur));
-        }
-        if (! found)
-          continue;
+        /* skip */
+        continue;
+      }
+      if ( (NULL == restricted) &&
+           (0 == strcmp (cc,
+                         "xx")) )
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Running in demo mode, skipping unrestricted providers\n");
+        /* demo mode, skipping regular providers */
+        continue;
       }
       prov = GNUNET_JSON_PACK (
         GNUNET_JSON_pack_string ("status",
@@ -1023,7 +1009,6 @@ select_country (json_t *state,
 {
   const json_t *required_attrs;
   const json_t *country_code;
-  const json_t *currencies;
   const json_t *redux_id_attr;
 
   if (NULL == arguments)
@@ -1073,23 +1058,11 @@ select_country (json_t *state,
     }
   }
 
-  currencies = json_object_get (arguments,
-                                "currencies");
-  if ( (NULL == currencies) ||
-       (! json_is_array (currencies))  )
-  {
-    ANASTASIS_redux_fail_ (cb,
-                           cb_cls,
-                           TALER_EC_ANASTASIS_REDUCER_STATE_INVALID,
-                           "'currencies' missing");
-    return NULL;
-  }
-  /* We now have an idea of the currency, begin fetching
-     provider /configs (we likely need them later) */
+  /* Begin fetching provider /configs (we likely need them later) */
   {
     enum TALER_ErrorCode ec;
 
-    ec = begin_provider_config_check (currencies,
+    ec = begin_provider_config_check (json_string_value (country_code),
                                       state);
     if (TALER_EC_NONE != ec)
     {
@@ -1127,10 +1100,6 @@ select_country (json_t *state,
                  json_object_set (state,
                                   "selected_country",
                                   (json_t *) country_code));
-  GNUNET_assert (0 ==
-                 json_object_set (state,
-                                  "currencies",
-                                  (json_t *) currencies));
   GNUNET_assert (0 ==
                  json_object_set (state,
                                   "required_attributes",
-- 
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