From b6b7550ccbe694bfd81bfdb216d688c291930351 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Mon, 9 Dec 2019 10:17:13 +0100
Subject: sign-request.in: use the old ca for some time (the new ca may need
 some time to circulate to clients)

---
 etc/ca.conf     | 3 +++
 sign-request.in | 9 ++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/etc/ca.conf b/etc/ca.conf
index aa8b4ba..2dccb42 100644
--- a/etc/ca.conf
+++ b/etc/ca.conf
@@ -3,6 +3,9 @@
 # how long do we keep the old signature of the root-ca (days)
 ca_keep_duration=60
 
+# how long do we wait before using the new root-ca (days)
+ca_min_duration=10
+
 # which system user owns the ca
 ca_user='erich'
 
diff --git a/sign-request.in b/sign-request.in
index 52b481e..0185cf4 100755
--- a/sign-request.in
+++ b/sign-request.in
@@ -14,6 +14,13 @@ remove_leading_spaces() {
   '
 }
 
+if [ -f '#ETCDIR#/simple-pki/ca/root-ca.old.crt' ] \
+&& [ "$(stat -c%Y '#ETCDIR#/simple-pki/ca/root-ca.old.crt')" -ge "$(($(date +%s)-60*60*24*ca_min_duration))" ]; then
+  export CA=signing-ca.old
+else
+  export CA=signing-ca
+fi
+
 tmp_dir=$(mktemp -d)
 trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
 
@@ -95,7 +102,7 @@ while read -r csr; do
     rm "${csr_local}"
     continue
   fi
-  if ! CA=signing-ca openssl ca -batch -name signing_ca \
+  if ! openssl ca -batch -name signing_ca \
     -config '#ETCDIR#/simple-pki/ca-ssl.conf' \
     -in "${csr_local}" \
     -out "${csr_local%.csr}.crt" \
-- 
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