From: short <>
Date: Mon, 7 Oct 2002 22:34:13 +0000 (+0000)
Subject: $head now uses: Mail::Header -> MIME::Head
X-Git-Tag: bp_lace~96
X-Git-Url: https://git.jankratochvil.net/?p=PerlMail.git;a=commitdiff_plain;h=cc75dffdfe36f7a253c4cfe0555c09fca28d360a

$head now uses: Mail::Header -> MIME::Head
+PGP aware
 - default e-mail <pgp-01234567@jankratochvil.net>
   - default key read from "$HOME/.gnupg/options"
Fixed recipients list uniquization
---

diff --git a/perlmail-sendmail b/perlmail-sendmail
index 3cf3f3f..900dded 100755
--- a/perlmail-sendmail
+++ b/perlmail-sendmail
@@ -9,7 +9,7 @@ use warnings;
 
 require Getopt::Long;
 use POSIX qw(WIFEXITED WEXITSTATUS WIFSIGNALED WTERMSIG WIFSTOPPED WSTOPSIG);
-require Mail::Header;
+require MIME::Head;	# inherits Mail::Header
 require Mail::Address;
 require File::Basename;
 require Mail::Alias;
@@ -20,12 +20,33 @@ my $HOME="/home/short";
 # Mail-Alias-1.12 will clutter $_ !
 my @addr_addon=(Mail::Alias->new("/etc/aliases")->exists("sentout") ? ("sentout") : ());
 my $opt_F;
+my $is_pgp;
 sub FromAddress
 {
 my($rcpt,$iserror)=@_;
 
+	my $phrase=(defined $opt_F ? $opt_F : "Jan Kratochvil");
+	{
+		last if !$is_pgp;
+		last if $iserror;
+		local *F;
+		local $_;
+		my $filename="$HOME/.gnupg/options";
+		open F,$filename or do { warn "Open \"$filename\": $!"; last; };
+		local $/="\n";
+		my @keys=map((/^\s*default-key\s+(\S+)\s*$/),<F>);
+		@keys==1 or do { warn "Found ".scalar(@keys)." 'default-key's in your \"$filename\", ignoring"; last; };
+		close F or warn "Close \"$filename\": $!";
+		my $default_key=$keys[0];
+		$default_key=~/^[[:xdigit:]]{8}$/ or do { warn "Invalid 'default-key', ignoring: $default_key"; last; };
+		return Mail::Address->new(
+				$phrase,
+				'pgp-'.uc($default_key).'@jankratochvil.net',
+				);
+		}
+	# !$is_pgp or fallback
 	return Mail::Address->new(
-			(defined $opt_F ? $opt_F : "Jan Kratochvil"),
+			$phrase,
 			(!$iserror ? 'rcpt' : 'rcpterr')
 					.'-'
 					.(defined($rcpt->user()) ? $rcpt->user() : "NOUSER")
@@ -177,7 +198,7 @@ if (0
 # RedHat sendmail-8.9.3-20/src/main.c/main()/\Qif (FullName != NULL)\E
 #   for $opt_F is implemented by Mail::Address in our &FromAddress
 
-my $head=Mail::Header->new(\*STDIN);
+my $head=MIME::Head->new(\*STDIN);
 # We may (=will) change the contents and send it multiple times
 if (defined(my $msgid=$head->get("Message-ID"))) {
 	$head->delete("Message-ID");
@@ -230,11 +251,23 @@ my $from_headername;
 	# now $from_headername contains the header name to be replaced w/substituted value
 	}
 
+# to be utilized later by &FromAddress
+$is_pgp=(1
+		&& do { local $_=$head->mime_attr("Content-Type");          $_ && ~m#^multipart/(?:signed|encrypted)$#; }
+		&& do { local $_=$head->mime_attr("Content-Type.protocol"); $_ && ~m#^application/pgp\b#; }
+		);
+
 my $exitcode=0;
 # !defined($rcpt) if we have no recipients
 # make the list unique to prevent dupes being normally filtered by sendmail(8)
 # one '{' is block-wrapper, another '{' is hash-indirection!
-my @rcpts=keys(%{{ map(($_=>1),(@addr ? @addr : (undef()))) }});
+# hash keys are just strings, never refs!
+# unify the list as Mail::Address instances
+my @rcpts=(!@addr ? (undef()) : values(%{{ map({
+		my $obj=$_;
+		$obj=parseone $obj if !ref $obj;
+		(!defined $obj ? () : (lc($obj->address())=>$obj));
+		} @addr) }}));
 
 my $stdin_body=(@rcpts<=1 ? undef() : do {	# store input data only if it will be used multiple times
 		local $/=undef();
@@ -246,10 +279,6 @@ for my $rcpt (@rcpts) {
 
 	if (defined $rcpt) {	# !defined($rcpt) if we have no recipients
 		local $_;
-		if (!ref $rcpt) {
-			$rcpt=parseone $rcpt;
-			next if !defined $rcpt;
-			}
 		$opt_f=FromAddress($rcpt,1)->address() if !defined $opt_f;
 		$head->replace($from_headername,FromAddress($rcpt,0)->format()) if $from_headername;
 		}
@@ -274,7 +303,7 @@ for my $rcpt (@rcpts) {
 		sendmail_orig_exec() if !$pid; # child
 		}
 	$head->print(\*SENDMAIL);
-	print SENDMAIL "\n";	# Mail::Header->print() eats the empty line but it doesn't print it
+	print SENDMAIL "\n";	# MIME::Head->print() eats the empty line but it doesn't print it
 	if (defined($stdin_body)) {
 		print SENDMAIL $stdin_body;
 		}