[libeufin] branch master updated: nexus fetch: workaround #7980

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ms pushed a commit to branch master
in repository libeufin.

The following commit(s) were added to refs/heads/master by this push:
     new 15a26b4d nexus fetch: workaround #7980
15a26b4d is described below

commit 15a26b4d9ef9a3ecf24d276b85f3f20197d142a9
Author: MS <ms@taler.net>
AuthorDate: Wed Nov 15 13:49:46 2023 +0100

    nexus fetch: workaround #7980
---
 nexus/src/main/kotlin/tech/libeufin/nexus/EbicsFetch.kt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nexus/src/main/kotlin/tech/libeufin/nexus/EbicsFetch.kt 
b/nexus/src/main/kotlin/tech/libeufin/nexus/EbicsFetch.kt
index 6fdfdc1e..295f482a 100644
--- a/nexus/src/main/kotlin/tech/libeufin/nexus/EbicsFetch.kt
+++ b/nexus/src/main/kotlin/tech/libeufin/nexus/EbicsFetch.kt
@@ -296,6 +296,10 @@ fun findIncomingTxInNotification(
  * @return [ByteArray] or null if not valid.
  */
 fun isReservePub(maybeReservePub: String): ByteArray? {
+    if (maybeReservePub.length != 52) {
+        logger.error("Not a reserve pub, length (${maybeReservePub.length}) is 
not 52")
+        return null
+    }
     val dec = try {
         Base32Crockford.decode(maybeReservePub)
     } catch (e: EncodingException) {
@@ -303,6 +307,7 @@ fun isReservePub(maybeReservePub: String): ByteArray? {
         return null
     }
     logger.debug("Reserve how many bytes: ${dec.size}")
+    // this check would only be effective after #7980
     if (dec.size != 32) {
         logger.error("Not a reserve pub, wrong length: ${dec.size}")
         return null

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