[taler-anastasis] branch master updated: implement redux recovery initialization logic

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grothoff pushed a commit to branch master
in repository anastasis.

The following commit(s) were added to refs/heads/master by this push:
     new deb6678  implement redux recovery initialization logic
deb6678 is described below

commit deb667808ba566fc008f9b90cc6290f590326b4d
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Sat Feb 20 21:37:14 2021 +0100

    implement redux recovery initialization logic
---
 src/reducer/anastasis_api_recovery_redux.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/reducer/anastasis_api_recovery_redux.c 
b/src/reducer/anastasis_api_recovery_redux.c
index f960f40..c31f417 100644
--- a/src/reducer/anastasis_api_recovery_redux.c
+++ b/src/reducer/anastasis_api_recovery_redux.c
@@ -798,6 +798,18 @@ free_rss (void *cls)
 }
 
 
+/**
+ * Callback which passes back the recovery document and its possible
+ * policies. Also passes back the version of the document for the user
+ * to check.
+ *
+ * Once the first policy lookup succeeds, we update our state and
+ * cancel all of the others, passing the obtained recovery information
+ * back to the user.
+ *
+ * @param cls closure for the callback
+ * @param ri recovery information struct which contains the policies
+ */
 static void
 policy_lookup_cb (void *cls,
                   const struct ANASTASIS_RecoveryInformation *ri)
@@ -809,6 +821,24 @@ policy_lookup_cb (void *cls,
   json_t *recovery_information;
 
   pd->recovery = NULL;
+  if (NULL == ri)
+  {
+    /* Woopsie, failed hard. */
+    GNUNET_CONTAINER_DLL_remove (rss->pd_head,
+                                 rss->pd_tail,
+                                 pd);
+    GNUNET_free (pd->backend_url);
+    GNUNET_free (pd);
+    if (NULL != rss->pd_head)
+      return; /* wait for another one */
+    /* all failed! report failure! */
+    set_state (rss->state,
+               ANASTASIS_GENERIC_STATE_ERROR);
+    rss->cb (rss->cb_cls,
+             TALER_EC_INVALID, // FIXME: use better code!
+             rss->state);
+    free_rss (rss);
+  }
   policies = json_array ();
   GNUNET_assert (NULL != policies);
   for (unsigned int i = 0; i<ri->dps_len; i++)

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