send-email: squelch warning due to comparing undefined $_ to ""
[git/git.git] / git-send-email.perl
1 #!/usr/bin/perl -w
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 #
18
19 use strict;
20 use warnings;
21 use Term::ReadLine;
22 use Getopt::Long;
23 use Data::Dumper;
24 use Term::ANSIColor;
25 use Git;
26
27 $SIG{INT} = sub { print color("reset"), "\n"; exit };
28
29 package FakeTerm;
30 sub new {
31 my ($class, $reason) = @_;
32 return bless \$reason, shift;
33 }
34 sub readline {
35 my $self = shift;
36 die "Cannot use readline on FakeTerm: $$self";
37 }
38 package main;
39
40
41 sub usage {
42 print <<EOT;
43 git-send-email [options] <file | directory>...
44 Options:
45 --from Specify the "From:" line of the email to be sent.
46
47 --to Specify the primary "To:" line of the email.
48
49 --cc Specify an initial "Cc:" list for the entire series
50 of emails.
51
52 --cc-cmd Specify a command to execute per file which adds
53 per file specific cc address entries
54
55 --bcc Specify a list of email addresses that should be Bcc:
56 on all the emails.
57
58 --compose Use \$GIT_EDITOR, core.editor, \$EDITOR, or \$VISUAL to edit
59 an introductory message for the patch series.
60
61 --subject Specify the initial "Subject:" line.
62 Only necessary if --compose is also set. If --compose
63 is not set, this will be prompted for.
64
65 --in-reply-to Specify the first "In-Reply-To:" header line.
66 Only used if --compose is also set. If --compose is not
67 set, this will be prompted for.
68
69 --chain-reply-to If set, the replies will all be to the previous
70 email sent, rather than to the first email sent.
71 Defaults to on.
72
73 --signed-off-cc Automatically add email addresses that appear in
74 Signed-off-by: or Cc: lines to the cc: list. Defaults to on.
75
76 --identity The configuration identity, a subsection to prioritise over
77 the default section.
78
79 --smtp-server If set, specifies the outgoing SMTP server to use.
80 Defaults to localhost. Port number can be specified here with
81 hostname:port format or by using --smtp-server-port option.
82
83 --smtp-server-port Specify a port on the outgoing SMTP server to connect to.
84
85 --smtp-user The username for SMTP-AUTH.
86
87 --smtp-pass The password for SMTP-AUTH.
88
89 --smtp-ssl If set, connects to the SMTP server using SSL.
90
91 --suppress-from Suppress sending emails to yourself. Defaults to off.
92
93 --thread Specify that the "In-Reply-To:" header should be set on all
94 emails. Defaults to on.
95
96 --quiet Make git-send-email less verbose. One line per email
97 should be all that is output.
98
99 --dry-run Do everything except actually send the emails.
100
101 --envelope-sender Specify the envelope sender used to send the emails.
102
103 --no-validate Don't perform any sanity checks on patches.
104
105 EOT
106 exit(1);
107 }
108
109 # most mail servers generate the Date: header, but not all...
110 sub format_2822_time {
111 my ($time) = @_;
112 my @localtm = localtime($time);
113 my @gmttm = gmtime($time);
114 my $localmin = $localtm[1] + $localtm[2] * 60;
115 my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
116 if ($localtm[0] != $gmttm[0]) {
117 die "local zone differs from GMT by a non-minute interval\n";
118 }
119 if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
120 $localmin += 1440;
121 } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
122 $localmin -= 1440;
123 } elsif ($gmttm[6] != $localtm[6]) {
124 die "local time offset greater than or equal to 24 hours\n";
125 }
126 my $offset = $localmin - $gmtmin;
127 my $offhour = $offset / 60;
128 my $offmin = abs($offset % 60);
129 if (abs($offhour) >= 24) {
130 die ("local time offset greater than or equal to 24 hours\n");
131 }
132
133 return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
134 qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
135 $localtm[3],
136 qw(Jan Feb Mar Apr May Jun
137 Jul Aug Sep Oct Nov Dec)[$localtm[4]],
138 $localtm[5]+1900,
139 $localtm[2],
140 $localtm[1],
141 $localtm[0],
142 ($offset >= 0) ? '+' : '-',
143 abs($offhour),
144 $offmin,
145 );
146 }
147
148 my $have_email_valid = eval { require Email::Valid; 1 };
149 my $smtp;
150 my $auth;
151
152 sub unique_email_list(@);
153 sub cleanup_compose_files();
154
155 # Constants (essentially)
156 my $compose_filename = ".msg.$$";
157
158 # Variables we fill in automatically, or via prompting:
159 my (@to,@cc,@initial_cc,@bcclist,@xh,
160 $initial_reply_to,$initial_subject,@files,$author,$sender,$compose,$time);
161
162 my $envelope_sender;
163
164 # Example reply to:
165 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
166
167 my $repo = Git->repository();
168 my $term = eval {
169 new Term::ReadLine 'git-send-email';
170 };
171 if ($@) {
172 $term = new FakeTerm "$@: going non-interactive";
173 }
174
175 # Behavior modification variables
176 my ($quiet, $dry_run) = (0, 0);
177
178 # Variables with corresponding config settings
179 my ($thread, $chain_reply_to, $suppress_from, $signed_off_cc, $cc_cmd);
180 my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_authpass, $smtp_ssl);
181 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
182 my ($no_validate);
183
184 my %config_bool_settings = (
185 "thread" => [\$thread, 1],
186 "chainreplyto" => [\$chain_reply_to, 1],
187 "suppressfrom" => [\$suppress_from, 0],
188 "signedoffcc" => [\$signed_off_cc, 1],
189 "smtpssl" => [\$smtp_ssl, 0],
190 );
191
192 my %config_settings = (
193 "smtpserver" => \$smtp_server,
194 "smtpserverport" => \$smtp_server_port,
195 "smtpuser" => \$smtp_authuser,
196 "smtppass" => \$smtp_authpass,
197 "to" => \@to,
198 "cccmd" => \$cc_cmd,
199 "aliasfiletype" => \$aliasfiletype,
200 "bcc" => \@bcclist,
201 "aliasesfile" => \@alias_files,
202 );
203
204 # Begin by accumulating all the variables (defined above), that we will end up
205 # needing, first, from the command line:
206
207 my $rc = GetOptions("sender|from=s" => \$sender,
208 "in-reply-to=s" => \$initial_reply_to,
209 "subject=s" => \$initial_subject,
210 "to=s" => \@to,
211 "cc=s" => \@initial_cc,
212 "bcc=s" => \@bcclist,
213 "chain-reply-to!" => \$chain_reply_to,
214 "smtp-server=s" => \$smtp_server,
215 "smtp-server-port=s" => \$smtp_server_port,
216 "smtp-user=s" => \$smtp_authuser,
217 "smtp-pass=s" => \$smtp_authpass,
218 "smtp-ssl!" => \$smtp_ssl,
219 "identity=s" => \$identity,
220 "compose" => \$compose,
221 "quiet" => \$quiet,
222 "cc-cmd=s" => \$cc_cmd,
223 "suppress-from!" => \$suppress_from,
224 "signed-off-cc|signed-off-by-cc!" => \$signed_off_cc,
225 "dry-run" => \$dry_run,
226 "envelope-sender=s" => \$envelope_sender,
227 "thread!" => \$thread,
228 "no-validate" => \$no_validate,
229 );
230
231 unless ($rc) {
232 usage();
233 }
234
235 # Now, let's fill any that aren't set in with defaults:
236
237 sub read_config {
238 my ($prefix) = @_;
239
240 foreach my $setting (keys %config_bool_settings) {
241 my $target = $config_bool_settings{$setting}->[0];
242 $$target = $repo->config_bool("$prefix.$setting") unless (defined $$target);
243 }
244
245 foreach my $setting (keys %config_settings) {
246 my $target = $config_settings{$setting};
247 if (ref($target) eq "ARRAY") {
248 unless (@$target) {
249 my @values = $repo->config("$prefix.$setting");
250 @$target = @values if (@values && defined $values[0]);
251 }
252 }
253 else {
254 $$target = $repo->config("$prefix.$setting") unless (defined $$target);
255 }
256 }
257 }
258
259 # read configuration from [sendemail "$identity"], fall back on [sendemail]
260 $identity = $repo->config("sendemail.identity") unless (defined $identity);
261 read_config("sendemail.$identity") if (defined $identity);
262 read_config("sendemail");
263
264 # fall back on builtin bool defaults
265 foreach my $setting (values %config_bool_settings) {
266 ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
267 }
268
269 my ($repoauthor) = $repo->ident_person('author');
270 my ($repocommitter) = $repo->ident_person('committer');
271
272 # Verify the user input
273
274 foreach my $entry (@to) {
275 die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
276 }
277
278 foreach my $entry (@initial_cc) {
279 die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
280 }
281
282 foreach my $entry (@bcclist) {
283 die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
284 }
285
286 my %aliases;
287 my %parse_alias = (
288 # multiline formats can be supported in the future
289 mutt => sub { my $fh = shift; while (<$fh>) {
290 if (/^\s*alias\s+(\S+)\s+(.*)$/) {
291 my ($alias, $addr) = ($1, $2);
292 $addr =~ s/#.*$//; # mutt allows # comments
293 # commas delimit multiple addresses
294 $aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
295 }}},
296 mailrc => sub { my $fh = shift; while (<$fh>) {
297 if (/^alias\s+(\S+)\s+(.*)$/) {
298 # spaces delimit multiple addresses
299 $aliases{$1} = [ split(/\s+/, $2) ];
300 }}},
301 pine => sub { my $fh = shift; while (<$fh>) {
302 if (/^(\S+)\t.*\t(.*)$/) {
303 $aliases{$1} = [ split(/\s*,\s*/, $2) ];
304 }}},
305 gnus => sub { my $fh = shift; while (<$fh>) {
306 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
307 $aliases{$1} = [ $2 ];
308 }}}
309 );
310
311 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
312 foreach my $file (@alias_files) {
313 open my $fh, '<', $file or die "opening $file: $!\n";
314 $parse_alias{$aliasfiletype}->($fh);
315 close $fh;
316 }
317 }
318
319 ($sender) = expand_aliases($sender) if defined $sender;
320
321 # Now that all the defaults are set, process the rest of the command line
322 # arguments and collect up the files that need to be processed.
323 for my $f (@ARGV) {
324 if (-d $f) {
325 opendir(DH,$f)
326 or die "Failed to opendir $f: $!";
327
328 push @files, grep { -f $_ } map { +$f . "/" . $_ }
329 sort readdir(DH);
330
331 } elsif (-f $f) {
332 push @files, $f;
333
334 } else {
335 print STDERR "Skipping $f - not found.\n";
336 }
337 }
338
339 if (!$no_validate) {
340 foreach my $f (@files) {
341 my $error = validate_patch($f);
342 $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
343 }
344 }
345
346 if (@files) {
347 unless ($quiet) {
348 print $_,"\n" for (@files);
349 }
350 } else {
351 print STDERR "\nNo patch files specified!\n\n";
352 usage();
353 }
354
355 my $prompting = 0;
356 if (!defined $sender) {
357 $sender = $repoauthor || $repocommitter;
358 do {
359 $_ = $term->readline("Who should the emails appear to be from? [$sender] ");
360 } while (!defined $_);
361
362 $sender = $_ if ($_);
363 print "Emails will be sent from: ", $sender, "\n";
364 $prompting++;
365 }
366
367 if (!@to) {
368 do {
369 $_ = $term->readline("Who should the emails be sent to? ",
370 "");
371 } while (!defined $_);
372 my $to = $_;
373 push @to, split /,/, $to;
374 $prompting++;
375 }
376
377 sub expand_aliases {
378 my @cur = @_;
379 my @last;
380 do {
381 @last = @cur;
382 @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
383 } while (join(',',@cur) ne join(',',@last));
384 return @cur;
385 }
386
387 @to = expand_aliases(@to);
388 @to = (map { sanitize_address($_) } @to);
389 @initial_cc = expand_aliases(@initial_cc);
390 @bcclist = expand_aliases(@bcclist);
391
392 if (!defined $initial_subject && $compose) {
393 do {
394 $_ = $term->readline("What subject should the initial email start with? ",
395 $initial_subject);
396 } while (!defined $_);
397 $initial_subject = $_;
398 $prompting++;
399 }
400
401 if ($thread && !defined $initial_reply_to && $prompting) {
402 do {
403 $_= $term->readline("Message-ID to be used as In-Reply-To for the first email? ",
404 $initial_reply_to);
405 } while (!defined $_);
406
407 $initial_reply_to = $_;
408 }
409 if (defined $initial_reply_to) {
410 $initial_reply_to =~ s/^\s*<?/</;
411 $initial_reply_to =~ s/>?\s*$/>/;
412 }
413
414 if (!defined $smtp_server) {
415 foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
416 if (-x $_) {
417 $smtp_server = $_;
418 last;
419 }
420 }
421 $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
422 }
423
424 if ($compose) {
425 # Note that this does not need to be secure, but we will make a small
426 # effort to have it be unique
427 open(C,">",$compose_filename)
428 or die "Failed to open for writing $compose_filename: $!";
429 print C "From $sender # This line is ignored.\n";
430 printf C "Subject: %s\n\n", $initial_subject;
431 printf C <<EOT;
432 GIT: Please enter your email below.
433 GIT: Lines beginning in "GIT: " will be removed.
434 GIT: Consider including an overall diffstat or table of contents
435 GIT: for the patch you are writing.
436
437 EOT
438 close(C);
439
440 my $editor = $ENV{GIT_EDITOR} || $repo->config("core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
441 system('sh', '-c', '$0 $@', $editor, $compose_filename);
442
443 open(C2,">",$compose_filename . ".final")
444 or die "Failed to open $compose_filename.final : " . $!;
445
446 open(C,"<",$compose_filename)
447 or die "Failed to open $compose_filename : " . $!;
448
449 while(<C>) {
450 next if m/^GIT: /;
451 print C2 $_;
452 }
453 close(C);
454 close(C2);
455
456 do {
457 $_ = $term->readline("Send this email? (y|n) ");
458 } while (!defined $_);
459
460 if (uc substr($_,0,1) ne 'Y') {
461 cleanup_compose_files();
462 exit(0);
463 }
464
465 @files = ($compose_filename . ".final", @files);
466 }
467
468 # Variables we set as part of the loop over files
469 our ($message_id, %mail, $subject, $reply_to, $references, $message);
470
471 sub extract_valid_address {
472 my $address = shift;
473 my $local_part_regexp = '[^<>"\s@]+';
474 my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
475
476 # check for a local address:
477 return $address if ($address =~ /^($local_part_regexp)$/);
478
479 $address =~ s/^\s*<(.*)>\s*$/$1/;
480 if ($have_email_valid) {
481 return scalar Email::Valid->address($address);
482 } else {
483 # less robust/correct than the monster regexp in Email::Valid,
484 # but still does a 99% job, and one less dependency
485 $address =~ /($local_part_regexp\@$domain_regexp)/;
486 return $1;
487 }
488 }
489
490 # Usually don't need to change anything below here.
491
492 # we make a "fake" message id by taking the current number
493 # of seconds since the beginning of Unix time and tacking on
494 # a random number to the end, in case we are called quicker than
495 # 1 second since the last time we were called.
496
497 # We'll setup a template for the message id, using the "from" address:
498
499 my ($message_id_stamp, $message_id_serial);
500 sub make_message_id
501 {
502 my $uniq;
503 if (!defined $message_id_stamp) {
504 $message_id_stamp = sprintf("%s-%s", time, $$);
505 $message_id_serial = 0;
506 }
507 $message_id_serial++;
508 $uniq = "$message_id_stamp-$message_id_serial";
509
510 my $du_part;
511 for ($sender, $repocommitter, $repoauthor) {
512 $du_part = extract_valid_address(sanitize_address($_));
513 last if (defined $du_part and $du_part ne '');
514 }
515 if (not defined $du_part or $du_part eq '') {
516 use Sys::Hostname qw();
517 $du_part = 'user@' . Sys::Hostname::hostname();
518 }
519 my $message_id_template = "<%s-git-send-email-%s>";
520 $message_id = sprintf($message_id_template, $uniq, $du_part);
521 #print "new message id = $message_id\n"; # Was useful for debugging
522 }
523
524
525
526 $time = time - scalar $#files;
527
528 sub unquote_rfc2047 {
529 local ($_) = @_;
530 my $encoding;
531 if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
532 $encoding = $1;
533 s/_/ /g;
534 s/=([0-9A-F]{2})/chr(hex($1))/eg;
535 }
536 return wantarray ? ($_, $encoding) : $_;
537 }
538
539 # use the simplest quoting being able to handle the recipient
540 sub sanitize_address
541 {
542 my ($recipient) = @_;
543 my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
544
545 if (not $recipient_name) {
546 return "$recipient";
547 }
548
549 # if recipient_name is already quoted, do nothing
550 if ($recipient_name =~ /^(".*"|=\?utf-8\?q\?.*\?=)$/) {
551 return $recipient;
552 }
553
554 # rfc2047 is needed if a non-ascii char is included
555 if ($recipient_name =~ /[^[:ascii:]]/) {
556 $recipient_name =~ s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
557 $recipient_name =~ s/(.*)/=\?utf-8\?q\?$1\?=/;
558 }
559
560 # double quotes are needed if specials or CTLs are included
561 elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
562 $recipient_name =~ s/(["\\\r])/\\$1/;
563 $recipient_name = "\"$recipient_name\"";
564 }
565
566 return "$recipient_name $recipient_addr";
567
568 }
569
570 sub send_message
571 {
572 my @recipients = unique_email_list(@to);
573 @cc = (grep { my $cc = extract_valid_address($_);
574 not grep { $cc eq $_ } @recipients
575 }
576 map { sanitize_address($_) }
577 @cc);
578 my $to = join (",\n\t", @recipients);
579 @recipients = unique_email_list(@recipients,@cc,@bcclist);
580 @recipients = (map { extract_valid_address($_) } @recipients);
581 my $date = format_2822_time($time++);
582 my $gitversion = '@@GIT_VERSION@@';
583 if ($gitversion =~ m/..GIT_VERSION../) {
584 $gitversion = Git::version();
585 }
586
587 my $cc = join(", ", unique_email_list(@cc));
588 my $ccline = "";
589 if ($cc ne '') {
590 $ccline = "\nCc: $cc";
591 }
592 my $sanitized_sender = sanitize_address($sender);
593 make_message_id() unless defined($message_id);
594
595 my $header = "From: $sanitized_sender
596 To: $to${ccline}
597 Subject: $subject
598 Date: $date
599 Message-Id: $message_id
600 X-Mailer: git-send-email $gitversion
601 ";
602 if ($thread && $reply_to) {
603
604 $header .= "In-Reply-To: $reply_to\n";
605 $header .= "References: $references\n";
606 }
607 if (@xh) {
608 $header .= join("\n", @xh) . "\n";
609 }
610
611 my @sendmail_parameters = ('-i', @recipients);
612 my $raw_from = $sanitized_sender;
613 $raw_from = $envelope_sender if (defined $envelope_sender);
614 $raw_from = extract_valid_address($raw_from);
615 unshift (@sendmail_parameters,
616 '-f', $raw_from) if(defined $envelope_sender);
617
618 if ($dry_run) {
619 # We don't want to send the email.
620 } elsif ($smtp_server =~ m#^/#) {
621 my $pid = open my $sm, '|-';
622 defined $pid or die $!;
623 if (!$pid) {
624 exec($smtp_server, @sendmail_parameters) or die $!;
625 }
626 print $sm "$header\n$message";
627 close $sm or die $?;
628 } else {
629
630 if (!defined $smtp_server) {
631 die "The required SMTP server is not properly defined."
632 }
633
634 if ($smtp_ssl) {
635 $smtp_server_port ||= 465; # ssmtp
636 require Net::SMTP::SSL;
637 $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
638 }
639 else {
640 require Net::SMTP;
641 $smtp ||= Net::SMTP->new((defined $smtp_server_port)
642 ? "$smtp_server:$smtp_server_port"
643 : $smtp_server);
644 }
645
646 if (!$smtp) {
647 die "Unable to initialize SMTP properly. Is there something wrong with your config?";
648 }
649
650 if ((defined $smtp_authuser) && (defined $smtp_authpass)) {
651 $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
652 }
653 $smtp->mail( $raw_from ) or die $smtp->message;
654 $smtp->to( @recipients ) or die $smtp->message;
655 $smtp->data or die $smtp->message;
656 $smtp->datasend("$header\n$message") or die $smtp->message;
657 $smtp->dataend() or die $smtp->message;
658 $smtp->ok or die "Failed to send $subject\n".$smtp->message;
659 }
660 if ($quiet) {
661 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
662 } else {
663 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
664 if ($smtp_server !~ m#^/#) {
665 print "Server: $smtp_server\n";
666 print "MAIL FROM:<$raw_from>\n";
667 print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
668 } else {
669 print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
670 }
671 print $header, "\n";
672 if ($smtp) {
673 print "Result: ", $smtp->code, ' ',
674 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
675 } else {
676 print "Result: OK\n";
677 }
678 }
679 }
680
681 $reply_to = $initial_reply_to;
682 $references = $initial_reply_to || '';
683 $subject = $initial_subject;
684
685 foreach my $t (@files) {
686 open(F,"<",$t) or die "can't open file $t";
687
688 my $author = undef;
689 my $author_encoding;
690 my $has_content_type;
691 my $body_encoding;
692 @cc = @initial_cc;
693 @xh = ();
694 my $input_format = undef;
695 my $header_done = 0;
696 $message = "";
697 while(<F>) {
698 if (!$header_done) {
699 if (/^From /) {
700 $input_format = 'mbox';
701 next;
702 }
703 chomp;
704 if (!defined $input_format && /^[-A-Za-z]+:\s/) {
705 $input_format = 'mbox';
706 }
707
708 if (defined $input_format && $input_format eq 'mbox') {
709 if (/^Subject:\s+(.*)$/) {
710 $subject = $1;
711
712 } elsif (/^(Cc|From):\s+(.*)$/) {
713 if (unquote_rfc2047($2) eq $sender) {
714 next if ($suppress_from);
715 }
716 elsif ($1 eq 'From') {
717 ($author, $author_encoding)
718 = unquote_rfc2047($2);
719 }
720 printf("(mbox) Adding cc: %s from line '%s'\n",
721 $2, $_) unless $quiet;
722 push @cc, $2;
723 }
724 elsif (/^Content-type:/i) {
725 $has_content_type = 1;
726 if (/charset="?[^ "]+/) {
727 $body_encoding = $1;
728 }
729 push @xh, $_;
730 }
731 elsif (/^Message-Id: (.*)/i) {
732 $message_id = $1;
733 }
734 elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
735 push @xh, $_;
736 }
737
738 } else {
739 # In the traditional
740 # "send lots of email" format,
741 # line 1 = cc
742 # line 2 = subject
743 # So let's support that, too.
744 $input_format = 'lots';
745 if (@cc == 0) {
746 printf("(non-mbox) Adding cc: %s from line '%s'\n",
747 $_, $_) unless $quiet;
748
749 push @cc, $_;
750
751 } elsif (!defined $subject) {
752 $subject = $_;
753 }
754 }
755
756 # A whitespace line will terminate the headers
757 if (m/^\s*$/) {
758 $header_done = 1;
759 }
760 } else {
761 $message .= $_;
762 if (/^(Signed-off-by|Cc): (.*)$/i && $signed_off_cc) {
763 my $c = $2;
764 chomp $c;
765 next if ($c eq $sender and $suppress_from);
766 push @cc, $c;
767 printf("(sob) Adding cc: %s from line '%s'\n",
768 $c, $_) unless $quiet;
769 }
770 }
771 }
772 close F;
773
774 if (defined $cc_cmd) {
775 open(F, "$cc_cmd $t |")
776 or die "(cc-cmd) Could not execute '$cc_cmd'";
777 while(<F>) {
778 my $c = $_;
779 $c =~ s/^\s*//g;
780 $c =~ s/\n$//g;
781 next if ($c eq $sender and $suppress_from);
782 push @cc, $c;
783 printf("(cc-cmd) Adding cc: %s from: '%s'\n",
784 $c, $cc_cmd) unless $quiet;
785 }
786 close F
787 or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
788 }
789
790 if (defined $author) {
791 $message = "From: $author\n\n$message";
792 if (defined $author_encoding) {
793 if ($has_content_type) {
794 if ($body_encoding eq $author_encoding) {
795 # ok, we already have the right encoding
796 }
797 else {
798 # uh oh, we should re-encode
799 }
800 }
801 else {
802 push @xh,
803 'MIME-Version: 1.0',
804 "Content-Type: text/plain; charset=$author_encoding",
805 'Content-Transfer-Encoding: 8bit';
806 }
807 }
808 }
809
810 send_message();
811
812 # set up for the next message
813 if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
814 $reply_to = $message_id;
815 if (length $references > 0) {
816 $references .= "\n $message_id";
817 } else {
818 $references = "$message_id";
819 }
820 }
821 $message_id = undef;
822 }
823
824 if ($compose) {
825 cleanup_compose_files();
826 }
827
828 sub cleanup_compose_files() {
829 unlink($compose_filename, $compose_filename . ".final");
830
831 }
832
833 $smtp->quit if $smtp;
834
835 sub unique_email_list(@) {
836 my %seen;
837 my @emails;
838
839 foreach my $entry (@_) {
840 if (my $clean = extract_valid_address($entry)) {
841 $seen{$clean} ||= 0;
842 next if $seen{$clean}++;
843 push @emails, $entry;
844 } else {
845 print STDERR "W: unable to extract a valid address",
846 " from: $entry\n";
847 }
848 }
849 return @emails;
850 }
851
852 sub validate_patch {
853 my $fn = shift;
854 open(my $fh, '<', $fn)
855 or die "unable to open $fn: $!\n";
856 while (my $line = <$fh>) {
857 if (length($line) > 998) {
858 return "$.: patch contains a line longer than 998 characters";
859 }
860 }
861 return undef;
862 }