add HTTP_TOKEN_CHECK_WAIT option (1.84)

If someone is running load balanced servers that use the same certificate there is some time needed to wait until the token is replicated within the server instances.

getssl

@@ -157,10 +157,11 @@
 # 2016-11-09 Add SKIP_HTTP_TOKEN_CHECK option (Issue #170) (1.81)
 # 2016-11-13 bug fix DOMAIN_KEY_CERT generation (1.82)
 # 2016-11-17 add PREVENT_NON_INTERACTIVE_RENEWAL option (1.83)
+# 2016-12-03 add HTTP_TOKEN_CHECK_WAIT option (1.84)
 # ----------------------------------------------------------------------------------------
 
 PROGNAME=${0##*/}
-VERSION="1.83"
+VERSION="1.84"
 
 # defaults
 CODE_LOCATION="https://raw.githubusercontent.com/srvrco/getssl/master/getssl"
@@ -189,6 +190,7 @@ DEACTIVATE_AUTH="false"
 PREVIOUSLY_VALIDATED="true"
 DUAL_RSA_ECDSA="false"
 SKIP_HTTP_TOKEN_CHECK="false"
+HTTP_TOKEN_CHECK_WAIT=0
 ORIG_UMASK=$(umask)
 _USE_DEBUG=0
 _CREATE_CONFIG=0
@@ -1694,6 +1696,7 @@ for d in $alldomains; do
       if [[ "$SKIP_HTTP_TOKEN_CHECK" == "true" ]]; then
         info "SKIP_HTTP_TOKEN_CHECK=true so not checking that token is working correctly"
       else
+        sleep "$HTTP_TOKEN_CHECK_WAIT"
         # check that we can reach the challenge ourselves, if not, then error
         if [[ ! "$(curl -k --silent --location "$wellknown_url")" == "$keyauthorization" ]]; then
           error_exit "for some reason could not reach $wellknown_url - please check it manually"