eximconf: unfold Subject headers before processing in RT routers

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>

diff --git a/modules/exim/templates/eximconf.erb b/modules/exim/templates/eximconf.erb
index b95cd83..f2d753f 100644 (file)
--- a/modules/exim/templates/eximconf.erb
+++ b/modules/exim/templates/eximconf.erb
@@ -1367,7 +1367,7 @@ rt_force_new_verbose:
   pipe_transport = rt_pipe
   data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
   headers_remove = Subject
-  headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {$h_subject:}{\N(?is)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}"
+  headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {${sg {$rh_Subject:}{\N\n\s+\N}{ }}}{\N(?is)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}"
 
 # FIXME: figure out how to generalize this approach so that all of the following would work
 # - rt+NNNN@rt.debian.org          : attach correspondence to ticket (verbose)
@@ -1384,7 +1384,7 @@ rt_force_new_quiesce:
   pipe_transport = rt_pipe
   data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
   headers_remove = Subject
-  headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nSubject: ${if and {{first_delivery}{match {$h_subject:}{\N(?is)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}"
+  headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nSubject: ${if and {{first_delivery}{match {${sg {$rh_Subject:}{\N\n\s+\N}{ }}}{\N(?is)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}"
 
 rt_otherwise:
   debug_print = "R: rt for $local_part@$domain"
@@ -1397,7 +1397,7 @@ rt_otherwise:
   pipe_transport = rt_pipe
   data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-(comment|done)}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --extension ticket --action ${if match{$local_part}{.*-comment.*}{comment}{${if match{$local_part}{.*-done.*}{correspond-resolve}{correspond}}}}"
   headers_remove = Subject
-  headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {$h_subject:}{\N(?i)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}"
+  headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {${sg {$rh_Subject:}{\N\n\s+\N}{ }}}{\N(?i)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}"
 <%- end -%>
 
 # Exim fails the router if it can't change to the user/group for delivery