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authorEric Wong (Contractor, The Linux Foundation) <e@80x24.org>2018-03-20 21:00:00 +0000
committerEric Wong (Contractor, The Linux Foundation) <e@80x24.org>2018-03-20 21:01:35 +0000
commit54590383027a67d11953690cbb6390347757730b (patch)
tree7d004c6a71a4abaad25acf10cba841777e157775 /lib/PublicInbox/InboxWritable.pm
parentbaae46ba22d283706dd821bea19aa9d985d0081d (diff)
downloadpublic-inbox-54590383027a67d11953690cbb6390347757730b.tar.gz
This will make it easier to as well as supporting future
Filter API users.  It allows simplifying our ad-hoc
import_vger_from_mbox script.
Diffstat (limited to 'lib/PublicInbox/InboxWritable.pm')
-rw-r--r--lib/PublicInbox/InboxWritable.pm103
1 files changed, 103 insertions, 0 deletions
diff --git a/lib/PublicInbox/InboxWritable.pm b/lib/PublicInbox/InboxWritable.pm
index 0a976ea2..82834f08 100644
--- a/lib/PublicInbox/InboxWritable.pm
+++ b/lib/PublicInbox/InboxWritable.pm
@@ -7,6 +7,8 @@ use strict;
 use warnings;
 use base qw(PublicInbox::Inbox);
 use PublicInbox::Import;
+use PublicInbox::Filter::Base;
+*REJECT = *PublicInbox::Filter::Base::REJECT;
 
 sub new {
         my ($class, $ibx) = @_;
@@ -54,4 +56,105 @@ sub filter {
         undef;
 }
 
+sub is_maildir_basename ($) {
+        my ($bn) = @_;
+        return 0 if $bn !~ /\A[a-zA-Z0-9][\-\w:,=\.]+\z/;
+        if ($bn =~ /:2,([A-Z]+)\z/i) {
+                my $flags = $1;
+                return 0 if $flags =~ /[DT]/; # no [D]rafts or [T]rashed mail
+        }
+        1;
+}
+
+sub is_maildir_path ($) {
+        my ($path) = @_;
+        my @p = split(m!/+!, $path);
+        (is_maildir_basename($p[-1]) && -f $path) ? 1 : 0;
+}
+
+sub maildir_path_load ($) {
+        my ($path) = @_;
+        if (open my $fh, '<', $path) {
+                local $/;
+                my $str = <$fh>;
+                $str or return;
+                return PublicInbox::MIME->new(\$str);
+        } elsif ($!{ENOENT}) {
+                # common with Maildir
+                return;
+        } else {
+                warn "failed to open $path: $!\n";
+                return;
+        }
+}
+
+sub import_maildir {
+        my ($self, $dir) = @_;
+        my $im = $self->importer(1);
+        my $filter = $self->filter;
+        foreach my $sub (qw(cur new tmp)) {
+                -d "$dir/$sub" or die "$dir is not a Maildir (missing $sub)\n";
+        }
+        foreach my $sub (qw(cur new)) {
+                opendir my $dh, "$dir/$sub" or die "opendir $dir/$sub: $!\n";
+                while (defined(my $fn = readdir($dh))) {
+                        next unless is_maildir_basename($fn);
+                        my $mime = maildir_file_load("$dir/$fn") or next;
+                        if ($filter) {
+                                my $ret = $filter->scrub($mime) or return;
+                                return if $ret == REJECT();
+                                $mime = $ret;
+                        }
+                        $im->add($mime);
+                }
+        }
+        $im->done;
+}
+
+# asctime: From example@example.com Fri Jun 23 02:56:55 2000
+my $from_strict = qr/^From \S+ +\S+ \S+ +\S+ [^:]+:[^:]+:[^:]+ [^:]+/;
+
+sub mb_add ($$$$) {
+        my ($im, $variant, $filter, $msg) = @_;
+        $$msg =~ s/(\r?\n)+\z/$1/s;
+        my $mime = PublicInbox::MIME->new($msg);
+        if ($variant eq 'mboxrd') {
+                $$msg =~ s/^>(>*From )/$1/sm;
+        } elsif ($variant eq 'mboxo') {
+                $$msg =~ s/^>From /From /sm;
+        }
+        if ($filter) {
+                my $ret = $filter->scrub($mime) or return;
+                return if $ret == REJECT();
+                $mime = $ret;
+        }
+        $im->add($mime)
+}
+
+sub import_mbox {
+        my ($self, $fh, $variant) = @_;
+        if ($variant !~ /\A(?:mboxrd|mboxo)\z/) {
+                die "variant must be 'mboxrd' or 'mboxo'\n";
+        }
+        my $im = $self->importer(1);
+        my $prev = undef;
+        my $msg = '';
+        my $filter = $self->filter;
+        while (defined(my $l = <$fh>)) {
+                if ($l =~ /$from_strict/o) {
+                        if (!defined($prev) || $prev =~ /^\r?$/) {
+                                mb_add($im, $variant, $filter, \$msg) if $msg;
+                                $msg = '';
+                                $prev = $l;
+                                next;
+                        }
+                        warn "W[$.] $l\n";
+                }
+                $prev = $l;
+                $msg .= $l;
+        }
+        mb_add($im, $variant, $filter, \$msg) if $msg;
+        $im->done;
+}
+
 1;