global-functions: split $CertificateAvailable to $CertificateDownload

This allows to force download even if certificate is available. We need
this for a clean update path with Let's Encrypt.

global-functions

@@ -17,6 +17,7 @@
 # global functions
 :global UrlEncode;
 :global CharacterReplace;
+:global CertificateDownload;
 :global CertificateAvailable;
 :global SendEMail;
 :global SendTelegram;
@@ -79,8 +80,8 @@
   :return ($Return . $String);
 }
 
-# check and import required certificates
-:set CertificateAvailable do={
+# download and import certificate
+:set CertificateDownload do={
   :local CommonName [ :tostr $1 ];
 
   :global ScriptUpdatesBaseUrl;
@@ -89,9 +90,8 @@
   :global UrlEncode;
   :global WaitForFile;
 
-  :if ([ / certificate print count-only where common-name=$CommonName ] = 0) do={
-    :log info ("Certificate with CommonName " . $CommonName . \
-      " not available, downloading and importing.");
+  :log info ("Downloading and importing certificate with " . \
+      "CommonName " . $CommonName . ".");
   :do {
     :local LocalFileName ($CommonName . ".pem");
     :local UrlFileName ([ $UrlEncode $CommonName ] . ".pem");
@@ -105,6 +105,17 @@
   } on-error={
     :log warning "Failed imprting certificate!";
   }
+}
+
+# check and download required certificate
+:set CertificateAvailable do={
+  :local CommonName [ :tostr $1 ];
+
+  :global CertificateDownload;
+
+  :if ([ / certificate print count-only where common-name=$CommonName ] = 0) do={
+    :log info ("Certificate with CommonName " . $CommonName . " not available.");
+    $CertificateDownload $CommonName;
   }
 }