1#!/usr/bin/perl
2#
3# Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
4# Copyright 2005 Ryan Anderson <ryan@michonline.com>
5#
6# GPL v2 (See COPYING)
7#
8# Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
9#
10# Sends a collection of emails to the given email addresses, disturbingly fast.
11#
12# Supports two formats:
13# 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches)
14# 2. The original format support by Greg's script:
15# first line of the message is who to CC,
16# and second line is the subject of the message.
17#
18use 5.008;
20use strict;
21use warnings;
22use Term::ReadLine;
23use Getopt::Long;
24use Text::ParseWords;
25use Data::Dumper;
26use Term::ANSIColor;
27use File::Temp qw/ tempdir tempfile /;
28use File::Spec::Functions qw(catfile);
29use Error qw(:try);
30use Git;
31Getopt::Long::Configure qw/ pass_through /;
33package FakeTerm;
35sub new {
36 my ($class, $reason) = @_;
37 return bless \$reason, shift;
38}
39sub readline {
40 my $self = shift;
41 die "Cannot use readline on FakeTerm: $$self";
42}
43package main;
44sub usage {
47 print <<EOT;
48git send-email [options] <file | directory | rev-list options >
49 Composing:
51 --from <str> * Email From:
52 --[no-]to <str> * Email To:
53 --[no-]cc <str> * Email Cc:
54 --[no-]bcc <str> * Email Bcc:
55 --subject <str> * Email "Subject:"
56 --in-reply-to <str> * Email "In-Reply-To:"
57 --annotate * Review each patch that will be sent in an editor.
58 --compose * Open an editor for introduction.
59 --8bit-encoding <str> * Encoding to assume 8bit mails if undeclared
60 Sending:
62 --envelope-sender <str> * Email envelope sender.
63 --smtp-server <str:int> * Outgoing SMTP server to use. The port
64 is optional. Default 'localhost'.
65 --smtp-server-option <str> * Outgoing SMTP server option to use.
66 --smtp-server-port <int> * Outgoing SMTP server port.
67 --smtp-user <str> * Username for SMTP-AUTH.
68 --smtp-pass <str> * Password for SMTP-AUTH; not necessary.
69 --smtp-encryption <str> * tls or ssl; anything else disables.
70 --smtp-ssl * Deprecated. Use '--smtp-encryption ssl'.
71 --smtp-domain <str> * The domain name sent to HELO/EHLO handshake
72 --smtp-debug <0|1> * Disable, enable Net::SMTP debug.
73 Automating:
75 --identity <str> * Use the sendemail.<id> options.
76 --to-cmd <str> * Email To: via `<str> \$patch_path`
77 --cc-cmd <str> * Email Cc: via `<str> \$patch_path`
78 --suppress-cc <str> * author, self, sob, cc, cccmd, body, bodycc, all.
79 --[no-]signed-off-by-cc * Send to Signed-off-by: addresses. Default on.
80 --[no-]suppress-from * Send to self. Default off.
81 --[no-]chain-reply-to * Chain In-Reply-To: fields. Default off.
82 --[no-]thread * Use In-Reply-To: field. Default on.
83 Administering:
85 --confirm <str> * Confirm recipients before sending;
86 auto, cc, compose, always, or never.
87 --quiet * Output one line of info per email.
88 --dry-run * Don't actually send the emails.
89 --[no-]validate * Perform patch sanity checks. Default on.
90 --[no-]format-patch * understand any non optional arguments as
91 `git format-patch` ones.
92 --force * Send even if safety checks would prevent it.
93EOT
95 exit(1);
96}
97# most mail servers generate the Date: header, but not all...
99sub format_2822_time {
100 my ($time) = @_;
101 my @localtm = localtime($time);
102 my @gmttm = gmtime($time);
103 my $localmin = $localtm[1] + $localtm[2] * 60;
104 my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
105 if ($localtm[0] != $gmttm[0]) {
106 die "local zone differs from GMT by a non-minute interval\n";
107 }
108 if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
109 $localmin += 1440;
110 } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
111 $localmin -= 1440;
112 } elsif ($gmttm[6] != $localtm[6]) {
113 die "local time offset greater than or equal to 24 hours\n";
114 }
115 my $offset = $localmin - $gmtmin;
116 my $offhour = $offset / 60;
117 my $offmin = abs($offset % 60);
118 if (abs($offhour) >= 24) {
119 die ("local time offset greater than or equal to 24 hours\n");
120 }
121 return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
123 qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
124 $localtm[3],
125 qw(Jan Feb Mar Apr May Jun
126 Jul Aug Sep Oct Nov Dec)[$localtm[4]],
127 $localtm[5]+1900,
128 $localtm[2],
129 $localtm[1],
130 $localtm[0],
131 ($offset >= 0) ? '+' : '-',
132 abs($offhour),
133 $offmin,
134 );
135}
136my $have_email_valid = eval { require Email::Valid; 1 };
138my $have_mail_address = eval { require Mail::Address; 1 };
139my $smtp;
140my $auth;
141# Variables we fill in automatically, or via prompting:
143my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
144 $initial_reply_to,$initial_subject,@files,
145 $author,$sender,$smtp_authpass,$annotate,$compose,$time);
146my $envelope_sender;
148# Example reply to:
150#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
151my $repo = eval { Git->repository() };
153my @repo = $repo ? ($repo) : ();
154my $term = eval {
155 $ENV{"GIT_SEND_EMAIL_NOTTY"}
156 ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
157 : new Term::ReadLine 'git-send-email';
158};
159if ($@) {
160 $term = new FakeTerm "$@: going non-interactive";
161}
162# Behavior modification variables
164my ($quiet, $dry_run) = (0, 0);
165my $format_patch;
166my $compose_filename;
167my $force = 0;
168# Handle interactive edition of files.
170my $multiedit;
171my $editor;
172sub do_edit {
174 if (!defined($editor)) {
175 $editor = Git::command_oneline('var', 'GIT_EDITOR');
176 }
177 if (defined($multiedit) && !$multiedit) {
178 map {
179 system('sh', '-c', $editor.' "$@"', $editor, $_);
180 if (($? & 127) || ($? >> 8)) {
181 die("the editor exited uncleanly, aborting everything");
182 }
183 } @_;
184 } else {
185 system('sh', '-c', $editor.' "$@"', $editor, @_);
186 if (($? & 127) || ($? >> 8)) {
187 die("the editor exited uncleanly, aborting everything");
188 }
189 }
190}
191# Variables with corresponding config settings
193my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
194my ($to_cmd, $cc_cmd);
195my ($smtp_server, $smtp_server_port, @smtp_server_options);
196my ($smtp_authuser, $smtp_encryption);
197my ($identity, $aliasfiletype, @alias_files, $smtp_domain);
198my ($validate, $confirm);
199my (@suppress_cc);
200my ($auto_8bit_encoding);
201my ($debug_net_smtp) = 0; # Net::SMTP, see send_message()
203my $not_set_by_user = "true but not set by the user";
205my %config_bool_settings = (
207 "thread" => [\$thread, 1],
208 "chainreplyto" => [\$chain_reply_to, $not_set_by_user],
209 "suppressfrom" => [\$suppress_from, undef],
210 "signedoffbycc" => [\$signed_off_by_cc, undef],
211 "signedoffcc" => [\$signed_off_by_cc, undef], # Deprecated
212 "validate" => [\$validate, 1],
213);
214my %config_settings = (
216 "smtpserver" => \$smtp_server,
217 "smtpserverport" => \$smtp_server_port,
218 "smtpserveroption" => \@smtp_server_options,
219 "smtpuser" => \$smtp_authuser,
220 "smtppass" => \$smtp_authpass,
221 "smtpdomain" => \$smtp_domain,
222 "to" => \@initial_to,
223 "tocmd" => \$to_cmd,
224 "cc" => \@initial_cc,
225 "cccmd" => \$cc_cmd,
226 "aliasfiletype" => \$aliasfiletype,
227 "bcc" => \@bcclist,
228 "aliasesfile" => \@alias_files,
229 "suppresscc" => \@suppress_cc,
230 "envelopesender" => \$envelope_sender,
231 "multiedit" => \$multiedit,
232 "confirm" => \$confirm,
233 "from" => \$sender,
234 "assume8bitencoding" => \$auto_8bit_encoding,
235);
236# Help users prepare for 1.7.0
238sub chain_reply_to {
239 if (defined $chain_reply_to &&
240 $chain_reply_to eq $not_set_by_user) {
241 print STDERR
242 "In git 1.7.0, the default has changed to --no-chain-reply-to\n" .
243 "Set sendemail.chainreplyto configuration variable to true if\n" .
244 "you want to keep --chain-reply-to as your default.\n";
245 $chain_reply_to = 0;
246 }
247 return $chain_reply_to;
248}
249# Handle Uncouth Termination
251sub signal_handler {
252 # Make text normal
254 print color("reset"), "\n";
255 # SMTP password masked
257 system "stty echo";
258 # tmp files from --compose
260 if (defined $compose_filename) {
261 if (-e $compose_filename) {
262 print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
263 }
264 if (-e ($compose_filename . ".final")) {
265 print "'$compose_filename.final' contains the composed email.\n"
266 }
267 }
268 exit;
270};
271$SIG{TERM} = \&signal_handler;
273$SIG{INT} = \&signal_handler;
274# Begin by accumulating all the variables (defined above), that we will end up
276# needing, first, from the command line:
277my $help;
279my $rc = GetOptions("h" => \$help,
280 "sender|from=s" => \$sender,
281 "in-reply-to=s" => \$initial_reply_to,
282 "subject=s" => \$initial_subject,
283 "to=s" => \@initial_to,
284 "to-cmd=s" => \$to_cmd,
285 "no-to" => \$no_to,
286 "cc=s" => \@initial_cc,
287 "no-cc" => \$no_cc,
288 "bcc=s" => \@bcclist,
289 "no-bcc" => \$no_bcc,
290 "chain-reply-to!" => \$chain_reply_to,
291 "smtp-server=s" => \$smtp_server,
292 "smtp-server-option=s" => \@smtp_server_options,
293 "smtp-server-port=s" => \$smtp_server_port,
294 "smtp-user=s" => \$smtp_authuser,
295 "smtp-pass:s" => \$smtp_authpass,
296 "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
297 "smtp-encryption=s" => \$smtp_encryption,
298 "smtp-debug:i" => \$debug_net_smtp,
299 "smtp-domain:s" => \$smtp_domain,
300 "identity=s" => \$identity,
301 "annotate" => \$annotate,
302 "compose" => \$compose,
303 "quiet" => \$quiet,
304 "cc-cmd=s" => \$cc_cmd,
305 "suppress-from!" => \$suppress_from,
306 "suppress-cc=s" => \@suppress_cc,
307 "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
308 "confirm=s" => \$confirm,
309 "dry-run" => \$dry_run,
310 "envelope-sender=s" => \$envelope_sender,
311 "thread!" => \$thread,
312 "validate!" => \$validate,
313 "format-patch!" => \$format_patch,
314 "8bit-encoding=s" => \$auto_8bit_encoding,
315 "force" => \$force,
316 );
317usage() if $help;
319unless ($rc) {
320 usage();
321}
322die "Cannot run git format-patch from outside a repository\n"
324 if $format_patch and not $repo;
325# Now, let's fill any that aren't set in with defaults:
327sub read_config {
329 my ($prefix) = @_;
330 foreach my $setting (keys %config_bool_settings) {
332 my $target = $config_bool_settings{$setting}->[0];
333 $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
334 }
335 foreach my $setting (keys %config_settings) {
337 my $target = $config_settings{$setting};
338 next if $setting eq "to" and defined $no_to;
339 next if $setting eq "cc" and defined $no_cc;
340 next if $setting eq "bcc" and defined $no_bcc;
341 if (ref($target) eq "ARRAY") {
342 unless (@$target) {
343 my @values = Git::config(@repo, "$prefix.$setting");
344 @$target = @values if (@values && defined $values[0]);
345 }
346 }
347 else {
348 $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
349 }
350 }
351 if (!defined $smtp_encryption) {
353 my $enc = Git::config(@repo, "$prefix.smtpencryption");
354 if (defined $enc) {
355 $smtp_encryption = $enc;
356 } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
357 $smtp_encryption = 'ssl';
358 }
359 }
360}
361# read configuration from [sendemail "$identity"], fall back on [sendemail]
363$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
364read_config("sendemail.$identity") if (defined $identity);
365read_config("sendemail");
366# fall back on builtin bool defaults
368foreach my $setting (values %config_bool_settings) {
369 ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
370}
371# 'default' encryption is none -- this only prevents a warning
373$smtp_encryption = '' unless (defined $smtp_encryption);
374# Set CC suppressions
376my(%suppress_cc);
377if (@suppress_cc) {
378 foreach my $entry (@suppress_cc) {
379 die "Unknown --suppress-cc field: '$entry'\n"
380 unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
381 $suppress_cc{$entry} = 1;
382 }
383}
384if ($suppress_cc{'all'}) {
386 foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
387 $suppress_cc{$entry} = 1;
388 }
389 delete $suppress_cc{'all'};
390}
391# If explicit old-style ones are specified, they trump --suppress-cc.
393$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
394$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
395if ($suppress_cc{'body'}) {
397 foreach my $entry (qw (sob bodycc)) {
398 $suppress_cc{$entry} = 1;
399 }
400 delete $suppress_cc{'body'};
401}
402# Set confirm's default value
404my $confirm_unconfigured = !defined $confirm;
405if ($confirm_unconfigured) {
406 $confirm = scalar %suppress_cc ? 'compose' : 'auto';
407};
408die "Unknown --confirm setting: '$confirm'\n"
409 unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
410# Debugging, print out the suppressions.
412if (0) {
413 print "suppressions:\n";
414 foreach my $entry (keys %suppress_cc) {
415 printf " %-5s -> $suppress_cc{$entry}\n", $entry;
416 }
417}
418my ($repoauthor, $repocommitter);
420($repoauthor) = Git::ident_person(@repo, 'author');
421($repocommitter) = Git::ident_person(@repo, 'committer');
422# Verify the user input
424foreach my $entry (@initial_to) {
426 die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
427}
428foreach my $entry (@initial_cc) {
430 die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
431}
432foreach my $entry (@bcclist) {
434 die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
435}
436sub parse_address_line {
438 if ($have_mail_address) {
439 return map { $_->format } Mail::Address->parse($_[0]);
440 } else {
441 return split_addrs($_[0]);
442 }
443}
444sub split_addrs {
446 return quotewords('\s*,\s*', 1, @_);
447}
448my %aliases;
450my %parse_alias = (
451 # multiline formats can be supported in the future
452 mutt => sub { my $fh = shift; while (<$fh>) {
453 if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
454 my ($alias, $addr) = ($1, $2);
455 $addr =~ s/#.*$//; # mutt allows # comments
456 # commas delimit multiple addresses
457 $aliases{$alias} = [ split_addrs($addr) ];
458 }}},
459 mailrc => sub { my $fh = shift; while (<$fh>) {
460 if (/^alias\s+(\S+)\s+(.*)$/) {
461 # spaces delimit multiple addresses
462 $aliases{$1} = [ quotewords('\s+', 0, $2) ];
463 }}},
464 pine => sub { my $fh = shift; my $f='\t[^\t]*';
465 for (my $x = ''; defined($x); $x = $_) {
466 chomp $x;
467 $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
468 $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
469 $aliases{$1} = [ split_addrs($2) ];
470 }},
471 elm => sub { my $fh = shift;
472 while (<$fh>) {
473 if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
474 my ($alias, $addr) = ($1, $2);
475 $aliases{$alias} = [ split_addrs($addr) ];
476 }
477 } },
478 gnus => sub { my $fh = shift; while (<$fh>) {
480 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
481 $aliases{$1} = [ $2 ];
482 }}}
483);
484if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
486 foreach my $file (@alias_files) {
487 open my $fh, '<', $file or die "opening $file: $!\n";
488 $parse_alias{$aliasfiletype}->($fh);
489 close $fh;
490 }
491}
492($sender) = expand_aliases($sender) if defined $sender;
494# returns 1 if the conflict must be solved using it as a format-patch argument
496sub check_file_rev_conflict($) {
497 return unless $repo;
498 my $f = shift;
499 try {
500 $repo->command('rev-parse', '--verify', '--quiet', $f);
501 if (defined($format_patch)) {
502 return $format_patch;
503 }
504 die(<<EOF);
505File '$f' exists but it could also be the range of commits
506to produce patches for. Please disambiguate by...
507 * Saying "./$f" if you mean a file; or
509 * Giving --format-patch option if you mean a range.
510EOF
511 } catch Git::Error::Command with {
512 return 0;
513 }
514}
515# Now that all the defaults are set, process the rest of the command line
517# arguments and collect up the files that need to be processed.
518my @rev_list_opts;
519while (defined(my $f = shift @ARGV)) {
520 if ($f eq "--") {
521 push @rev_list_opts, "--", @ARGV;
522 @ARGV = ();
523 } elsif (-d $f and !check_file_rev_conflict($f)) {
524 opendir my $dh, $f
525 or die "Failed to opendir $f: $!";
526 push @files, grep { -f $_ } map { catfile($f, $_) }
528 sort readdir $dh;
529 closedir $dh;
530 } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
531 push @files, $f;
532 } else {
533 push @rev_list_opts, $f;
534 }
535}
536if (@rev_list_opts) {
538 die "Cannot run git format-patch from outside a repository\n"
539 unless $repo;
540 push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
541}
542if ($validate) {
544 foreach my $f (@files) {
545 unless (-p $f) {
546 my $error = validate_patch($f);
547 $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
548 }
549 }
550}
551if (@files) {
553 unless ($quiet) {
554 print $_,"\n" for (@files);
555 }
556} else {
557 print STDERR "\nNo patch files specified!\n\n";
558 usage();
559}
560sub get_patch_subject {
562 my $fn = shift;
563 open (my $fh, '<', $fn);
564 while (my $line = <$fh>) {
565 next unless ($line =~ /^Subject: (.*)$/);
566 close $fh;
567 return "GIT: $1\n";
568 }
569 close $fh;
570 die "No subject line in $fn ?";
571}
572if ($compose) {
574 # Note that this does not need to be secure, but we will make a small
575 # effort to have it be unique
576 $compose_filename = ($repo ?
577 tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
578 tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
579 open my $c, ">", $compose_filename
580 or die "Failed to open for writing $compose_filename: $!";
581 my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
584 my $tpl_subject = $initial_subject || '';
585 my $tpl_reply_to = $initial_reply_to || '';
586 print $c <<EOT;
588From $tpl_sender # This line is ignored.
589GIT: Lines beginning in "GIT:" will be removed.
590GIT: Consider including an overall diffstat or table of contents
591GIT: for the patch you are writing.
592GIT:
593GIT: Clear the body content if you don't wish to send a summary.
594From: $tpl_sender
595Subject: $tpl_subject
596In-Reply-To: $tpl_reply_to
597EOT
599 for my $f (@files) {
600 print $c get_patch_subject($f);
601 }
602 close $c;
603 if ($annotate) {
605 do_edit($compose_filename, @files);
606 } else {
607 do_edit($compose_filename);
608 }
609 open my $c2, ">", $compose_filename . ".final"
611 or die "Failed to open $compose_filename.final : " . $!;
612 open $c, "<", $compose_filename
614 or die "Failed to open $compose_filename : " . $!;
615 my $need_8bit_cte = file_has_nonascii($compose_filename);
617 my $in_body = 0;
618 my $summary_empty = 1;
619 while(<$c>) {
620 next if m/^GIT:/;
621 if ($in_body) {
622 $summary_empty = 0 unless (/^\n$/);
623 } elsif (/^\n$/) {
624 $in_body = 1;
625 if ($need_8bit_cte) {
626 print $c2 "MIME-Version: 1.0\n",
627 "Content-Type: text/plain; ",
628 "charset=UTF-8\n",
629 "Content-Transfer-Encoding: 8bit\n";
630 }
631 } elsif (/^MIME-Version:/i) {
632 $need_8bit_cte = 0;
633 } elsif (/^Subject:\s*(.+)\s*$/i) {
634 $initial_subject = $1;
635 my $subject = $initial_subject;
636 $_ = "Subject: " .
637 ($subject =~ /[^[:ascii:]]/ ?
638 quote_rfc2047($subject) :
639 $subject) .
640 "\n";
641 } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
642 $initial_reply_to = $1;
643 next;
644 } elsif (/^From:\s*(.+)\s*$/i) {
645 $sender = $1;
646 next;
647 } elsif (/^(?:To|Cc|Bcc):/i) {
648 print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
649 next;
650 }
651 print $c2 $_;
652 }
653 close $c;
654 close $c2;
655 if ($summary_empty) {
657 print "Summary email is empty, skipping it\n";
658 $compose = -1;
659 }
660} elsif ($annotate) {
661 do_edit(@files);
662}
663sub ask {
665 my ($prompt, %arg) = @_;
666 my $valid_re = $arg{valid_re};
667 my $default = $arg{default};
668 my $resp;
669 my $i = 0;
670 return defined $default ? $default : undef
671 unless defined $term->IN and defined fileno($term->IN) and
672 defined $term->OUT and defined fileno($term->OUT);
673 while ($i++ < 10) {
674 $resp = $term->readline($prompt);
675 if (!defined $resp) { # EOF
676 print "\n";
677 return defined $default ? $default : undef;
678 }
679 if ($resp eq '' and defined $default) {
680 return $default;
681 }
682 if (!defined $valid_re or $resp =~ /$valid_re/) {
683 return $resp;
684 }
685 }
686 return undef;
687}
688my %broken_encoding;
690sub file_declares_8bit_cte {
692 my $fn = shift;
693 open (my $fh, '<', $fn);
694 while (my $line = <$fh>) {
695 last if ($line =~ /^$/);
696 return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
697 }
698 close $fh;
699 return 0;
700}
701foreach my $f (@files) {
703 next unless (body_or_subject_has_nonascii($f)
704 && !file_declares_8bit_cte($f));
705 $broken_encoding{$f} = 1;
706}
707if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
709 print "The following files are 8bit, but do not declare " .
710 "a Content-Transfer-Encoding.\n";
711 foreach my $f (sort keys %broken_encoding) {
712 print " $f\n";
713 }
714 $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
715 default => "UTF-8");
716}
717if (!$force) {
719 for my $f (@files) {
720 if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
721 die "Refusing to send because the patch\n\t$f\n"
722 . "has the template subject '*** SUBJECT HERE ***'. "
723 . "Pass --force if you really want to send.\n";
724 }
725 }
726}
727my $prompting = 0;
729if (!defined $sender) {
730 $sender = $repoauthor || $repocommitter || '';
731 $sender = ask("Who should the emails appear to be from? [$sender] ",
732 default => $sender);
733 print "Emails will be sent from: ", $sender, "\n";
734 $prompting++;
735}
736if (!@initial_to && !defined $to_cmd) {
738 my $to = ask("Who should the emails be sent to? ");
739 push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
740 $prompting++;
741}
742sub expand_aliases {
744 return map { expand_one_alias($_) } @_;
745}
746my %EXPANDED_ALIASES;
748sub expand_one_alias {
749 my $alias = shift;
750 if ($EXPANDED_ALIASES{$alias}) {
751 die "fatal: alias '$alias' expands to itself\n";
752 }
753 local $EXPANDED_ALIASES{$alias} = 1;
754 return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
755}
756@initial_to = expand_aliases(@initial_to);
758@initial_to = (map { sanitize_address($_) } @initial_to);
759@initial_cc = expand_aliases(@initial_cc);
760@bcclist = expand_aliases(@bcclist);
761if ($thread && !defined $initial_reply_to && $prompting) {
763 $initial_reply_to = ask(
764 "Message-ID to be used as In-Reply-To for the first email? ");
765}
766if (defined $initial_reply_to) {
767 $initial_reply_to =~ s/^\s*<?//;
768 $initial_reply_to =~ s/>?\s*$//;
769 $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
770}
771if (!defined $smtp_server) {
773 foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
774 if (-x $_) {
775 $smtp_server = $_;
776 last;
777 }
778 }
779 $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
780}
781if ($compose && $compose > 0) {
783 @files = ($compose_filename . ".final", @files);
784}
785# Variables we set as part of the loop over files
787our ($message_id, %mail, $subject, $reply_to, $references, $message,
788 $needs_confirm, $message_num, $ask_default);
789sub extract_valid_address {
791 my $address = shift;
792 my $local_part_regexp = qr/[^<>"\s@]+/;
793 my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
794 # check for a local address:
796 return $address if ($address =~ /^($local_part_regexp)$/);
797 $address =~ s/^\s*<(.*)>\s*$/$1/;
799 if ($have_email_valid) {
800 return scalar Email::Valid->address($address);
801 } else {
802 # less robust/correct than the monster regexp in Email::Valid,
803 # but still does a 99% job, and one less dependency
804 $address =~ /($local_part_regexp\@$domain_regexp)/;
805 return $1;
806 }
807}
808# Usually don't need to change anything below here.
810# we make a "fake" message id by taking the current number
812# of seconds since the beginning of Unix time and tacking on
813# a random number to the end, in case we are called quicker than
814# 1 second since the last time we were called.
815# We'll setup a template for the message id, using the "from" address:
817my ($message_id_stamp, $message_id_serial);
819sub make_message_id {
820 my $uniq;
821 if (!defined $message_id_stamp) {
822 $message_id_stamp = sprintf("%s-%s", time, $$);
823 $message_id_serial = 0;
824 }
825 $message_id_serial++;
826 $uniq = "$message_id_stamp-$message_id_serial";
827 my $du_part;
829 for ($sender, $repocommitter, $repoauthor) {
830 $du_part = extract_valid_address(sanitize_address($_));
831 last if (defined $du_part and $du_part ne '');
832 }
833 if (not defined $du_part or $du_part eq '') {
834 require Sys::Hostname;
835 $du_part = 'user@' . Sys::Hostname::hostname();
836 }
837 my $message_id_template = "<%s-git-send-email-%s>";
838 $message_id = sprintf($message_id_template, $uniq, $du_part);
839 #print "new message id = $message_id\n"; # Was useful for debugging
840}
841$time = time - scalar $#files;
845sub unquote_rfc2047 {
847 local ($_) = @_;
848 my $encoding;
849 if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
850 $encoding = $1;
851 s/_/ /g;
852 s/=([0-9A-F]{2})/chr(hex($1))/eg;
853 }
854 return wantarray ? ($_, $encoding) : $_;
855}
856sub quote_rfc2047 {
858 local $_ = shift;
859 my $encoding = shift || 'UTF-8';
860 s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
861 s/(.*)/=\?$encoding\?q\?$1\?=/;
862 return $_;
863}
864sub is_rfc2047_quoted {
866 my $s = shift;
867 my $token = qr/[^][()<>@,;:"\/?.= \000-\037\177-\377]+/;
868 my $encoded_text = qr/[!->@-~]+/;
869 length($s) <= 75 &&
870 $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
871}
872# use the simplest quoting being able to handle the recipient
874sub sanitize_address {
875 my ($recipient) = @_;
876 my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
877 if (not $recipient_name) {
879 return $recipient;
880 }
881 # if recipient_name is already quoted, do nothing
883 if (is_rfc2047_quoted($recipient_name)) {
884 return $recipient;
885 }
886 # rfc2047 is needed if a non-ascii char is included
888 if ($recipient_name =~ /[^[:ascii:]]/) {
889 $recipient_name =~ s/^"(.*)"$/$1/;
890 $recipient_name = quote_rfc2047($recipient_name);
891 }
892 # double quotes are needed if specials or CTLs are included
894 elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
895 $recipient_name =~ s/(["\\\r])/\\$1/g;
896 $recipient_name = qq["$recipient_name"];
897 }
898 return "$recipient_name $recipient_addr";
900}
902# Returns the local Fully Qualified Domain Name (FQDN) if available.
904#
905# Tightly configured MTAa require that a caller sends a real DNS
906# domain name that corresponds the IP address in the HELO/EHLO
907# handshake. This is used to verify the connection and prevent
908# spammers from trying to hide their identity. If the DNS and IP don't
909# match, the receiveing MTA may deny the connection.
910#
911# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
912#
913# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
914# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
915#
916# This maildomain*() code is based on ideas in Perl library Test::Reporter
917# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
918sub valid_fqdn {
920 my $domain = shift;
921 return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
922}
923sub maildomain_net {
925 my $maildomain;
926 if (eval { require Net::Domain; 1 }) {
928 my $domain = Net::Domain::domainname();
929 $maildomain = $domain if valid_fqdn($domain);
930 }
931 return $maildomain;
933}
934sub maildomain_mta {
936 my $maildomain;
937 if (eval { require Net::SMTP; 1 }) {
939 for my $host (qw(mailhost localhost)) {
940 my $smtp = Net::SMTP->new($host);
941 if (defined $smtp) {
942 my $domain = $smtp->domain;
943 $smtp->quit;
944 $maildomain = $domain if valid_fqdn($domain);
946 last if $maildomain;
948 }
949 }
950 }
951 return $maildomain;
953}
954sub maildomain {
956 return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
957}
958# Returns 1 if the message was sent, and 0 otherwise.
960# In actuality, the whole program dies when there
961# is an error sending a message.
962sub send_message {
964 my @recipients = unique_email_list(@to);
965 @cc = (grep { my $cc = extract_valid_address($_);
966 not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
967 }
968 map { sanitize_address($_) }
969 @cc);
970 my $to = join (",\n\t", @recipients);
971 @recipients = unique_email_list(@recipients,@cc,@bcclist);
972 @recipients = (map { extract_valid_address($_) } @recipients);
973 my $date = format_2822_time($time++);
974 my $gitversion = '@@GIT_VERSION@@';
975 if ($gitversion =~ m/..GIT_VERSION../) {
976 $gitversion = Git::version();
977 }
978 my $cc = join(",\n\t", unique_email_list(@cc));
980 my $ccline = "";
981 if ($cc ne '') {
982 $ccline = "\nCc: $cc";
983 }
984 my $sanitized_sender = sanitize_address($sender);
985 make_message_id() unless defined($message_id);
986 my $header = "From: $sanitized_sender
988To: $to${ccline}
989Subject: $subject
990Date: $date
991Message-Id: $message_id
992X-Mailer: git-send-email $gitversion
993";
994 if ($reply_to) {
995 $header .= "In-Reply-To: $reply_to\n";
997 $header .= "References: $references\n";
998 }
999 if (@xh) {
1000 $header .= join("\n", @xh) . "\n";
1001 }
1002 my @sendmail_parameters = ('-i', @recipients);
1004 my $raw_from = $sanitized_sender;
1005 if (defined $envelope_sender && $envelope_sender ne "auto") {
1006 $raw_from = $envelope_sender;
1007 }
1008 $raw_from = extract_valid_address($raw_from);
1009 unshift (@sendmail_parameters,
1010 '-f', $raw_from) if(defined $envelope_sender);
1011 if ($needs_confirm && !$dry_run) {
1013 print "\n$header\n";
1014 if ($needs_confirm eq "inform") {
1015 $confirm_unconfigured = 0; # squelch this message for the rest of this run
1016 $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1017 print " The Cc list above has been expanded by additional\n";
1018 print " addresses found in the patch commit message. By default\n";
1019 print " send-email prompts before sending whenever this occurs.\n";
1020 print " This behavior is controlled by the sendemail.confirm\n";
1021 print " configuration setting.\n";
1022 print "\n";
1023 print " For additional information, run 'git send-email --help'.\n";
1024 print " To retain the current behavior, but squelch this message,\n";
1025 print " run 'git config --global sendemail.confirm auto'.\n\n";
1026 }
1027 $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
1028 valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1029 default => $ask_default);
1030 die "Send this email reply required" unless defined $_;
1031 if (/^n/i) {
1032 return 0;
1033 } elsif (/^q/i) {
1034 cleanup_compose_files();
1035 exit(0);
1036 } elsif (/^a/i) {
1037 $confirm = 'never';
1038 }
1039 }
1040 unshift (@sendmail_parameters, @smtp_server_options);
1042 if ($dry_run) {
1044 # We don't want to send the email.
1045 } elsif ($smtp_server =~ m#^/#) {
1046 my $pid = open my $sm, '|-';
1047 defined $pid or die $!;
1048 if (!$pid) {
1049 exec($smtp_server, @sendmail_parameters) or die $!;
1050 }
1051 print $sm "$header\n$message";
1052 close $sm or die $!;
1053 } else {
1054 if (!defined $smtp_server) {
1056 die "The required SMTP server is not properly defined."
1057 }
1058 if ($smtp_encryption eq 'ssl') {
1060 $smtp_server_port ||= 465; # ssmtp
1061 require Net::SMTP::SSL;
1062 $smtp_domain ||= maildomain();
1063 $smtp ||= Net::SMTP::SSL->new($smtp_server,
1064 Hello => $smtp_domain,
1065 Port => $smtp_server_port);
1066 }
1067 else {
1068 require Net::SMTP;
1069 $smtp_domain ||= maildomain();
1070 $smtp ||= Net::SMTP->new((defined $smtp_server_port)
1071 ? "$smtp_server:$smtp_server_port"
1072 : $smtp_server,
1073 Hello => $smtp_domain,
1074 Debug => $debug_net_smtp);
1075 if ($smtp_encryption eq 'tls' && $smtp) {
1076 require Net::SMTP::SSL;
1077 $smtp->command('STARTTLS');
1078 $smtp->response();
1079 if ($smtp->code == 220) {
1080 $smtp = Net::SMTP::SSL->start_SSL($smtp)
1081 or die "STARTTLS failed! ".$smtp->message;
1082 $smtp_encryption = '';
1083 # Send EHLO again to receive fresh
1084 # supported commands
1085 $smtp->hello();
1086 } else {
1087 die "Server does not support STARTTLS! ".$smtp->message;
1088 }
1089 }
1090 }
1091 if (!$smtp) {
1093 die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ",
1094 "VALUES: server=$smtp_server ",
1095 "encryption=$smtp_encryption ",
1096 "hello=$smtp_domain",
1097 defined $smtp_server_port ? " port=$smtp_server_port" : "";
1098 }
1099 if (defined $smtp_authuser) {
1101 if (!defined $smtp_authpass) {
1103 system "stty -echo";
1105 do {
1107 print "Password: ";
1108 $_ = <STDIN>;
1109 print "\n";
1110 } while (!defined $_);
1111 chomp($smtp_authpass = $_);
1113 system "stty echo";
1115 }
1116 $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
1118 }
1119 $smtp->mail( $raw_from ) or die $smtp->message;
1121 $smtp->to( @recipients ) or die $smtp->message;
1122 $smtp->data or die $smtp->message;
1123 $smtp->datasend("$header\n$message") or die $smtp->message;
1124 $smtp->dataend() or die $smtp->message;
1125 $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
1126 }
1127 if ($quiet) {
1128 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
1129 } else {
1130 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
1131 if ($smtp_server !~ m#^/#) {
1132 print "Server: $smtp_server\n";
1133 print "MAIL FROM:<$raw_from>\n";
1134 foreach my $entry (@recipients) {
1135 print "RCPT TO:<$entry>\n";
1136 }
1137 } else {
1138 print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1139 }
1140 print $header, "\n";
1141 if ($smtp) {
1142 print "Result: ", $smtp->code, ' ',
1143 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1144 } else {
1145 print "Result: OK\n";
1146 }
1147 }
1148 return 1;
1150}
1151$reply_to = $initial_reply_to;
1153$references = $initial_reply_to || '';
1154$subject = $initial_subject;
1155$message_num = 0;
1156foreach my $t (@files) {
1158 open my $fh, "<", $t or die "can't open file $t";
1159 my $author = undef;
1161 my $author_encoding;
1162 my $has_content_type;
1163 my $body_encoding;
1164 @to = ();
1165 @cc = ();
1166 @xh = ();
1167 my $input_format = undef;
1168 my @header = ();
1169 $message = "";
1170 $message_num++;
1171 # First unfold multiline header fields
1172 while(<$fh>) {
1173 last if /^\s*$/;
1174 if (/^\s+\S/ and @header) {
1175 chomp($header[$#header]);
1176 s/^\s+/ /;
1177 $header[$#header] .= $_;
1178 } else {
1179 push(@header, $_);
1180 }
1181 }
1182 # Now parse the header
1183 foreach(@header) {
1184 if (/^From /) {
1185 $input_format = 'mbox';
1186 next;
1187 }
1188 chomp;
1189 if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1190 $input_format = 'mbox';
1191 }
1192 if (defined $input_format && $input_format eq 'mbox') {
1194 if (/^Subject:\s+(.*)$/) {
1195 $subject = $1;
1196 }
1197 elsif (/^From:\s+(.*)$/) {
1198 ($author, $author_encoding) = unquote_rfc2047($1);
1199 next if $suppress_cc{'author'};
1200 next if $suppress_cc{'self'} and $author eq $sender;
1201 printf("(mbox) Adding cc: %s from line '%s'\n",
1202 $1, $_) unless $quiet;
1203 push @cc, $1;
1204 }
1205 elsif (/^To:\s+(.*)$/) {
1206 foreach my $addr (parse_address_line($1)) {
1207 printf("(mbox) Adding to: %s from line '%s'\n",
1208 $addr, $_) unless $quiet;
1209 push @to, sanitize_address($addr);
1210 }
1211 }
1212 elsif (/^Cc:\s+(.*)$/) {
1213 foreach my $addr (parse_address_line($1)) {
1214 if (unquote_rfc2047($addr) eq $sender) {
1215 next if ($suppress_cc{'self'});
1216 } else {
1217 next if ($suppress_cc{'cc'});
1218 }
1219 printf("(mbox) Adding cc: %s from line '%s'\n",
1220 $addr, $_) unless $quiet;
1221 push @cc, $addr;
1222 }
1223 }
1224 elsif (/^Content-type:/i) {
1225 $has_content_type = 1;
1226 if (/charset="?([^ "]+)/) {
1227 $body_encoding = $1;
1228 }
1229 push @xh, $_;
1230 }
1231 elsif (/^Message-Id: (.*)/i) {
1232 $message_id = $1;
1233 }
1234 elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1235 push @xh, $_;
1236 }
1237 } else {
1239 # In the traditional
1240 # "send lots of email" format,
1241 # line 1 = cc
1242 # line 2 = subject
1243 # So let's support that, too.
1244 $input_format = 'lots';
1245 if (@cc == 0 && !$suppress_cc{'cc'}) {
1246 printf("(non-mbox) Adding cc: %s from line '%s'\n",
1247 $_, $_) unless $quiet;
1248 push @cc, $_;
1249 } elsif (!defined $subject) {
1250 $subject = $_;
1251 }
1252 }
1253 }
1254 # Now parse the message body
1255 while(<$fh>) {
1256 $message .= $_;
1257 if (/^(Signed-off-by|Cc): (.*)$/i) {
1258 chomp;
1259 my ($what, $c) = ($1, $2);
1260 chomp $c;
1261 if ($c eq $sender) {
1262 next if ($suppress_cc{'self'});
1263 } else {
1264 next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1265 next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1266 }
1267 push @cc, $c;
1268 printf("(body) Adding cc: %s from line '%s'\n",
1269 $c, $_) unless $quiet;
1270 }
1271 }
1272 close $fh;
1273 push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1275 if defined $to_cmd;
1276 push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1277 if defined $cc_cmd && !$suppress_cc{'cccmd'};
1278 if ($broken_encoding{$t} && !$has_content_type) {
1280 $has_content_type = 1;
1281 push @xh, "MIME-Version: 1.0",
1282 "Content-Type: text/plain; charset=$auto_8bit_encoding",
1283 "Content-Transfer-Encoding: 8bit";
1284 $body_encoding = $auto_8bit_encoding;
1285 }
1286 if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1288 $subject = quote_rfc2047($subject, $auto_8bit_encoding);
1289 }
1290 if (defined $author and $author ne $sender) {
1292 $message = "From: $author\n\n$message";
1293 if (defined $author_encoding) {
1294 if ($has_content_type) {
1295 if ($body_encoding eq $author_encoding) {
1296 # ok, we already have the right encoding
1297 }
1298 else {
1299 # uh oh, we should re-encode
1300 }
1301 }
1302 else {
1303 $has_content_type = 1;
1304 push @xh,
1305 'MIME-Version: 1.0',
1306 "Content-Type: text/plain; charset=$author_encoding",
1307 'Content-Transfer-Encoding: 8bit';
1308 }
1309 }
1310 }
1311 $needs_confirm = (
1313 $confirm eq "always" or
1314 ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1315 ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1316 $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1317 @to = (@initial_to, @to);
1319 @cc = (@initial_cc, @cc);
1320 my $message_was_sent = send_message();
1322 # set up for the next message
1324 if ($thread && $message_was_sent &&
1325 (chain_reply_to() || !defined $reply_to || length($reply_to) == 0 ||
1326 $message_num == 1)) {
1327 $reply_to = $message_id;
1328 if (length $references > 0) {
1329 $references .= "\n $message_id";
1330 } else {
1331 $references = "$message_id";
1332 }
1333 }
1334 $message_id = undef;
1335}
1336# Execute a command (e.g. $to_cmd) to get a list of email addresses
1338# and return a results array
1339sub recipients_cmd {
1340 my ($prefix, $what, $cmd, $file) = @_;
1341 my $sanitized_sender = sanitize_address($sender);
1343 my @addresses = ();
1344 open my $fh, "$cmd \Q$file\E |"
1345 or die "($prefix) Could not execute '$cmd'";
1346 while (my $address = <$fh>) {
1347 $address =~ s/^\s*//g;
1348 $address =~ s/\s*$//g;
1349 $address = sanitize_address($address);
1350 next if ($address eq $sanitized_sender and $suppress_from);
1351 push @addresses, $address;
1352 printf("($prefix) Adding %s: %s from: '%s'\n",
1353 $what, $address, $cmd) unless $quiet;
1354 }
1355 close $fh
1356 or die "($prefix) failed to close pipe to '$cmd'";
1357 return @addresses;
1358}
1359cleanup_compose_files();
1361sub cleanup_compose_files {
1363 unlink($compose_filename, $compose_filename . ".final") if $compose;
1364}
1365$smtp->quit if $smtp;
1367sub unique_email_list {
1369 my %seen;
1370 my @emails;
1371 foreach my $entry (@_) {
1373 if (my $clean = extract_valid_address($entry)) {
1374 $seen{$clean} ||= 0;
1375 next if $seen{$clean}++;
1376 push @emails, $entry;
1377 } else {
1378 print STDERR "W: unable to extract a valid address",
1379 " from: $entry\n";
1380 }
1381 }
1382 return @emails;
1383}
1384sub validate_patch {
1386 my $fn = shift;
1387 open(my $fh, '<', $fn)
1388 or die "unable to open $fn: $!\n";
1389 while (my $line = <$fh>) {
1390 if (length($line) > 998) {
1391 return "$.: patch contains a line longer than 998 characters";
1392 }
1393 }
1394 return undef;
1395}
1396sub file_has_nonascii {
1398 my $fn = shift;
1399 open(my $fh, '<', $fn)
1400 or die "unable to open $fn: $!\n";
1401 while (my $line = <$fh>) {
1402 return 1 if $line =~ /[^[:ascii:]]/;
1403 }
1404 return 0;
1405}
1406sub body_or_subject_has_nonascii {
1408 my $fn = shift;
1409 open(my $fh, '<', $fn)
1410 or die "unable to open $fn: $!\n";
1411 while (my $line = <$fh>) {
1412 last if $line =~ /^$/;
1413 return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1414 }
1415 while (my $line = <$fh>) {
1416 return 1 if $line =~ /[^[:ascii:]]/;
1417 }
1418 return 0;
1419}