From f64d7df93fa4d21ec2ea8cfa08ed9f58af23df9b Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Fri, 24 Jul 2015 18:02:21 +0200
Subject: Pass messages by reference.

---
 imapsync | 40 ++++++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 18 deletions(-)

(limited to 'imapsync')

diff --git a/imapsync b/imapsync
index 6fb82ab..4cbc503 100755
--- a/imapsync
+++ b/imapsync
@@ -579,19 +579,19 @@ sub fix_missing($$$@) {
     my $target = $name eq 'local' ? $rIMAP : $lIMAP;
 
     my $attrs = join ' ', qw/MODSEQ FLAGS INTERNALDATE ENVELOPE BODY.PEEK[]/;
-    $source->fetch(compact_set(@set), "($attrs)", sub(%) {
-        my %mail = @_;
-        return unless exists $mail{RFC822}; # not for us
+    $source->fetch(compact_set(@set), "($attrs)", sub($) {
+        my $mail = shift;
+        return unless exists $mail->{RFC822}; # not for us
 
-        my $from = first { defined $_ and @$_ } @{$mail{ENVELOPE}}[2,3,4];
+        my $suid = $mail->{UID};
+        my $from = first { defined $_ and @$_ } @{$mail->{ENVELOPE}}[2,3,4];
         $from = (defined $from and @$from) ? $from->[0]->[2].'@'.$from->[0]->[3] : '';
-        print STDERR "$name($mailbox): UID $mail{UID} from <$from> ($mail{INTERNALDATE})\n" unless $CONFIG{quiet};
+        print STDERR "$name($mailbox): UID $suid from <$from> ($mail->{INTERNALDATE})\n" unless $CONFIG{quiet};
 
         # don't bother checking for MULTIAPPEND, @set is probably rather small
-        my @mail = ($mail{RFC822}, [ grep {lc $_ ne '\recent'} @{$mail{FLAGS}} ], $mail{INTERNALDATE});
-        my ($uid) = $target->append($mailbox, @mail);
+        my ($tuid) = $target->append($mailbox, $mail);
 
-        my ($lUID, $rUID) = $name eq 'local' ? ($mail{UID}, $uid) : ($uid, $mail{UID});
+        my ($lUID, $rUID) = $name eq 'local' ? ($suid, $tuid) : ($tuid, $suid);
         print STDERR "$name($mailbox): Adding mapping (lUID,rUID) = ($lUID,$rUID)\n";
         $STH_INSERT_MAPPING->execute($idx, $lUID, $rUID);
     });
@@ -821,29 +821,33 @@ sub sync_messages($$) {
         # don't fetch again the messages we've just added
         my @ignore = $source eq 'local' ? keys %mapping : values %mapping;
 
-        ($source eq 'local' ? $lIMAP : $rIMAP)->pull_new_messages(sub(%) {
-            my %mail = @_;
-            return unless exists $mail{RFC822}; # not for us
+        ($source eq 'local' ? $lIMAP : $rIMAP)->pull_new_messages(sub($) {
+            my $mail = shift;
+            return unless exists $mail->{RFC822}; # not for us
 
-            my @mail = ($mail{RFC822}, [ grep {lc $_ ne '\recent'} @{$mail{FLAGS}} ], $mail{INTERNALDATE});
-            push @sUID, $mail{UID};
+            my $length = length $mail->{RFC822};
+            my $suid = $mail->{UID};
+            if ($length == 0) {
+                warn "$source($mailbox): WARNING: Ignoring new 0-length message (UID $suid)\n";
+                return;
+            }
 
             # use MULTIAPPEND if possible (RFC 3502) to save round-trips
             $multiappend //= !$target->incapable('MULTIAPPEND');
 
+            push @sUID, $suid;
             if (!$multiappend) {
-                my ($uid) = $target->append($mailbox, @mail);
-                push @tUID, $uid;
+                push @tUID, $target->append($mailbox, $mail);
             }
             else {
                 # proceed by batch of 1MB to save roundtrips without blowing up the memory
-                if (@newmails and $buffer + length($mail{RFC822}) > 1048576) {
+                if (@newmails and $buffer + $length > 1048576) {
                     push @tUID, $target->append($mailbox, @newmails);
                     @newmails = ();
                     $buffer = 0;
                 }
-                push @newmails, @mail;
-                $buffer += length $mail{RFC822};
+                push @newmails, $mail;
+                $buffer += $length;
             }
         }, @ignore);
         push @tUID, $target->append($mailbox, @newmails) if @newmails;
-- 
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