From 89e21002d6e76148904bd96aaf9b2d3f5e5a2da1 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 13 May 2023 20:31:47 +0200
Subject: return tipping_allowed from /keys

---
 src/exchange/taler-exchange-httpd.h      | 5 +++++
 src/exchange/taler-exchange-httpd_keys.c | 2 ++
 src/include/taler_exchange_service.h     | 4 ++++
 src/lib/exchange_api_handle.c            | 6 ++++++
 4 files changed, 17 insertions(+)

(limited to 'src')

diff --git a/src/exchange/taler-exchange-httpd.h b/src/exchange/taler-exchange-httpd.h
index 5ab0ea92b..e06807b59 100644
--- a/src/exchange/taler-exchange-httpd.h
+++ b/src/exchange/taler-exchange-httpd.h
@@ -64,6 +64,11 @@ extern int TEH_check_invariants_flag;
  */
 extern int TEH_allow_keys_timetravel;
 
+/**
+ * Option set to #GNUNET_YES if tipping is enabled.
+ */
+extern int TEH_enable_tipping;
+
 /**
  * Main directory with revocation data.
  */
diff --git a/src/exchange/taler-exchange-httpd_keys.c b/src/exchange/taler-exchange-httpd_keys.c
index fa87a3b84..b39093ec1 100644
--- a/src/exchange/taler-exchange-httpd_keys.c
+++ b/src/exchange/taler-exchange-httpd_keys.c
@@ -1857,6 +1857,8 @@ create_krd (struct TEH_KeyStateHandle *ksh,
                              TEH_currency),
     GNUNET_JSON_pack_string ("asset_type",
                              asset_type),
+    GNUNET_JSON_pack_bool ("tipping_allowed",
+                           GNUNET_YES == TEH_enable_tipping),
     GNUNET_JSON_pack_data_auto ("master_public_key",
                                 &TEH_master_public_key),
     GNUNET_JSON_pack_time_rel ("reserve_closing_delay",
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
index 3769315e8..6d4ca1091 100644
--- a/src/include/taler_exchange_service.h
+++ b/src/include/taler_exchange_service.h
@@ -366,6 +366,10 @@ struct TALER_EXCHANGE_Keys
    */
   char *asset_type;
 
+  /**
+   * Set to true if tipping is allowed at this exchange.
+   */
+  bool tipping_allowed;
 };
 
 
diff --git a/src/lib/exchange_api_handle.c b/src/lib/exchange_api_handle.c
index 0e8046305..601b163db 100644
--- a/src/lib/exchange_api_handle.c
+++ b/src/lib/exchange_api_handle.c
@@ -733,6 +733,7 @@ decode_keys_json (const json_t *resp_obj,
   struct TALER_ExchangePublicKeyP pub;
   const char *currency;
   const char *asset_type;
+  bool tipping_allowed = true;
   json_t *wblwk = NULL;
   struct GNUNET_JSON_Specification mspec[] = {
     GNUNET_JSON_spec_fixed_auto ("denominations_sig",
@@ -749,6 +750,10 @@ decode_keys_json (const json_t *resp_obj,
                              &currency),
     GNUNET_JSON_spec_string ("asset_type",
                              &asset_type),
+    GNUNET_JSON_spec_mark_optional (
+      GNUNET_JSON_spec_bool ("tipping_allowed",
+                             &tipping_allowed),
+      NULL),
     GNUNET_JSON_spec_mark_optional (
       GNUNET_JSON_spec_json ("wallet_balance_limit_without_kyc",
                              &wblwk),
@@ -819,6 +824,7 @@ decode_keys_json (const json_t *resp_obj,
                              NULL, NULL));
   key_data->currency = GNUNET_strdup (currency);
   key_data->asset_type = GNUNET_strdup (asset_type);
+  key_data->tipping_allowed = tipping_allowed;
 
   /* parse the global fees */
   {
-- 
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