[taler-exchange] branch master updated: -fix /keys initialization DB logic

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 3b091cd5 -fix /keys initialization DB logic
3b091cd5 is described below

commit 3b091cd5dee9338850d5d1052f55d019624221c2
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Wed Jun 29 08:31:00 2022 +0200

    -fix /keys initialization DB logic
---
 src/exchange/taler-exchange-httpd_keys.c           | 29 ++++++----------------
 src/exchange/taler-exchange-httpd_keys.h           | 16 +++++++++++-
 .../taler-exchange-httpd_management_post_keys.c    | 20 ++++++++++++++-
 3 files changed, 41 insertions(+), 24 deletions(-)

diff --git a/src/exchange/taler-exchange-httpd_keys.c 
b/src/exchange/taler-exchange-httpd_keys.c
index 04e9141a..08c83dda 100644
--- a/src/exchange/taler-exchange-httpd_keys.c
+++ b/src/exchange/taler-exchange-httpd_keys.c
@@ -2604,16 +2604,8 @@ TEH_keys_update_states ()
 }
 
 
-/**
- * Obtain the key state. Should ONLY be used
- * directly if @a management_only is true. Otherwise use #TEH_keys_get_state().
- *
- * @param management_only if we should NOT run 'finish_keys_response()'
- *                  because we only need the state for the /management/keys API
- * @return NULL on error
- */
-static struct TEH_KeyStateHandle *
-get_key_state (bool management_only)
+struct TEH_KeyStateHandle *
+TEH_keys_get_state2 (bool management_only)
 {
   struct TEH_KeyStateHandle *old_ksh;
   struct TEH_KeyStateHandle *ksh;
@@ -2653,7 +2645,7 @@ TEH_keys_get_state (void)
 {
   struct TEH_KeyStateHandle *ksh;
 
-  ksh = get_key_state (false);
+  ksh = TEH_keys_get_state2 (false);
   if (NULL == ksh)
     return NULL;
   if (ksh->management_only)
@@ -3247,21 +3239,14 @@ load_extension_data (const char *section_name,
 
 
 enum GNUNET_GenericReturnValue
-TEH_keys_load_fees (const struct TALER_DenominationHashP *h_denom_pub,
+TEH_keys_load_fees (struct TEH_KeyStateHandle *ksh,
+                    const struct TALER_DenominationHashP *h_denom_pub,
                     struct TALER_DenominationPublicKey *denom_pub,
                     struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta)
 {
-  struct TEH_KeyStateHandle *ksh;
   struct HelperDenomination *hd;
   enum GNUNET_GenericReturnValue ok;
 
-  ksh = get_key_state (true);
-  if (NULL == ksh)
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-
   hd = GNUNET_CONTAINER_multihashmap_get (ksh->helpers->denom_keys,
                                           &h_denom_pub->hash);
   if (NULL == hd)
@@ -3304,7 +3289,7 @@ TEH_keys_get_timing (const struct 
TALER_ExchangePublicKeyP *exchange_pub,
   struct HelperSignkey *hsk;
   struct GNUNET_PeerIdentity pid;
 
-  ksh = get_key_state (true);
+  ksh = TEH_keys_get_state2 (true);
   if (NULL == ksh)
   {
     GNUNET_break (0);
@@ -3474,7 +3459,7 @@ TEH_keys_management_get_keys_handler (const struct 
TEH_RequestHandler *rh,
   json_t *reply;
 
   (void) rh;
-  ksh = get_key_state (true);
+  ksh = TEH_keys_get_state2 (true);
   if (NULL == ksh)
   {
     return TALER_MHD_reply_with_error (connection,
diff --git a/src/exchange/taler-exchange-httpd_keys.h 
b/src/exchange/taler-exchange-httpd_keys.h
index 1edf9c46..6d0cb5b5 100644
--- a/src/exchange/taler-exchange-httpd_keys.h
+++ b/src/exchange/taler-exchange-httpd_keys.h
@@ -174,6 +174,18 @@ struct TEH_KeyStateHandle *
 TEH_keys_get_state (void);
 
 
+/**
+ * Obtain the key state. Should ONLY be used
+ * directly if @a management_only is true. Otherwise use #TEH_keys_get_state().
+ *
+ * @param management_only if we should NOT run finish_keys_response()
+ *                  because we only need the state for the /management/keys API
+ * @return NULL on error
+ */
+struct TEH_KeyStateHandle *
+TEH_keys_get_state2 (bool management_only);
+
+
 /**
  * Something changed in the database. Rebuild all key states.  This function
  * should be called if the exchange learns about a new signature from an
@@ -485,6 +497,7 @@ TEH_keys_management_get_keys_handler (const struct 
TEH_RequestHandler *rh,
  * Load fees and expiration times (!) for the denomination type configured for
  * the denomination matching @a h_denom_pub.
  *
+ * @param ksh key state to load fees from
  * @param h_denom_pub hash of the denomination public key
  *        to use to derive the section name of the configuration to use
  * @param[out] denom_pub set to the denomination public key (to be freed by 
caller!)
@@ -494,7 +507,8 @@ TEH_keys_management_get_keys_handler (const struct 
TEH_RequestHandler *rh,
  *         #GNUNET_SYSERR on hard errors
  */
 enum GNUNET_GenericReturnValue
-TEH_keys_load_fees (const struct TALER_DenominationHashP *h_denom_pub,
+TEH_keys_load_fees (struct TEH_KeyStateHandle *ksh,
+                    const struct TALER_DenominationHashP *h_denom_pub,
                     struct TALER_DenominationPublicKey *denom_pub,
                     struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta);
 
diff --git a/src/exchange/taler-exchange-httpd_management_post_keys.c 
b/src/exchange/taler-exchange-httpd_management_post_keys.c
index 1fa09f7e..7d9853e9 100644
--- a/src/exchange/taler-exchange-httpd_management_post_keys.c
+++ b/src/exchange/taler-exchange-httpd_management_post_keys.c
@@ -84,6 +84,11 @@ struct AddKeysContext
    */
   struct SigningSig *s_sigs;
 
+  /**
+   * Our key state.
+   */
+  struct TEH_KeyStateHandle *ksh;
+
   /**
    * Length of the d_sigs array.
    */
@@ -150,7 +155,8 @@ add_keys (void *cls,
     {
       enum GNUNET_GenericReturnValue rv;
 
-      rv = TEH_keys_load_fees (&d->h_denom_pub,
+      rv = TEH_keys_load_fees (akc->ksh,
+                               &d->h_denom_pub,
                                &denom_pub,
                                &meta);
       switch (rv)
@@ -370,6 +376,18 @@ TEH_handler_management_post_keys (
   }
   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
               "Received /management/keys\n");
+  akc.ksh = TEH_keys_get_state2 (true); /* may start its own transaction, thus
+                                     must be done here, before we run ours! */
+  if (NULL == akc.ksh)
+  {
+    GNUNET_break_op (0);
+    GNUNET_JSON_parse_free (spec);
+    return TALER_MHD_reply_with_error (
+      connection,
+      MHD_HTTP_INTERNAL_SERVER_ERROR,
+      TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING,
+      "no key state (not even for management)");
+  }
   akc.nd_sigs = json_array_size (denom_sigs);
   akc.d_sigs = GNUNET_new_array (akc.nd_sigs,
                                  struct DenomSig);

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