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[git/dscho.git] / git-send-email.perl
blob6dab3bf6a74bb52c7294e33dbac5bf87b51a9fdf
1 #!/usr/bin/perl -w
3 # Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
4 # Copyright 2005 Ryan Anderson <ryan@michonline.com>
6 # GPL v2 (See COPYING)
8 # Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
10 # Sends a collection of emails to the given email addresses, disturbingly fast.
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.
19 use strict;
20 use warnings;
21 use Term::ReadLine;
22 use Getopt::Long;
23 use Text::ParseWords;
24 use Data::Dumper;
25 use Term::ANSIColor;
26 use File::Temp qw/ tempdir tempfile /;
27 use Error qw(:try);
28 use Git;
30 Getopt::Long::Configure qw/ pass_through /;
32 package FakeTerm;
33 sub new {
34 my ($class, $reason) = @_;
35 return bless \$reason, shift;
37 sub readline {
38 my $self = shift;
39 die "Cannot use readline on FakeTerm: $$self";
41 package main;
44 sub usage {
45 print <<EOT;
46 git send-email [options] <file | directory | rev-list options >
48 Composing:
49 --from <str> * Email From:
50 --[no-]to <str> * Email To:
51 --[no-]cc <str> * Email Cc:
52 --[no-]bcc <str> * Email Bcc:
53 --subject <str> * Email "Subject:"
54 --in-reply-to <str> * Email "In-Reply-To:"
55 --annotate * Review each patch that will be sent in an editor.
56 --compose * Open an editor for introduction.
57 --8bit-encoding <str> * Encoding to assume 8bit mails if undeclared
59 Sending:
60 --envelope-sender <str> * Email envelope sender.
61 --smtp-server <str:int> * Outgoing SMTP server to use. The port
62 is optional. Default 'localhost'.
63 --smtp-server-port <int> * Outgoing SMTP server port.
64 --smtp-user <str> * Username for SMTP-AUTH.
65 --smtp-pass <str> * Password for SMTP-AUTH; not necessary.
66 --smtp-encryption <str> * tls or ssl; anything else disables.
67 --smtp-ssl * Deprecated. Use '--smtp-encryption ssl'.
68 --smtp-domain <str> * The domain name sent to HELO/EHLO handshake
69 --smtp-debug <0|1> * Disable, enable Net::SMTP debug.
71 Automating:
72 --identity <str> * Use the sendemail.<id> options.
73 --cc-cmd <str> * Email Cc: via `<str> \$patch_path`
74 --suppress-cc <str> * author, self, sob, cc, cccmd, body, bodycc, all.
75 --[no-]signed-off-by-cc * Send to Signed-off-by: addresses. Default on.
76 --[no-]suppress-from * Send to self. Default off.
77 --[no-]chain-reply-to * Chain In-Reply-To: fields. Default off.
78 --[no-]thread * Use In-Reply-To: field. Default on.
80 Administering:
81 --confirm <str> * Confirm recipients before sending;
82 auto, cc, compose, always, or never.
83 --quiet * Output one line of info per email.
84 --dry-run * Don't actually send the emails.
85 --[no-]validate * Perform patch sanity checks. Default on.
86 --[no-]format-patch * understand any non optional arguments as
87 `git format-patch` ones.
89 EOT
90 exit(1);
93 # most mail servers generate the Date: header, but not all...
94 sub format_2822_time {
95 my ($time) = @_;
96 my @localtm = localtime($time);
97 my @gmttm = gmtime($time);
98 my $localmin = $localtm[1] + $localtm[2] * 60;
99 my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
100 if ($localtm[0] != $gmttm[0]) {
101 die "local zone differs from GMT by a non-minute interval\n";
103 if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
104 $localmin += 1440;
105 } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
106 $localmin -= 1440;
107 } elsif ($gmttm[6] != $localtm[6]) {
108 die "local time offset greater than or equal to 24 hours\n";
110 my $offset = $localmin - $gmtmin;
111 my $offhour = $offset / 60;
112 my $offmin = abs($offset % 60);
113 if (abs($offhour) >= 24) {
114 die ("local time offset greater than or equal to 24 hours\n");
117 return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
118 qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
119 $localtm[3],
120 qw(Jan Feb Mar Apr May Jun
121 Jul Aug Sep Oct Nov Dec)[$localtm[4]],
122 $localtm[5]+1900,
123 $localtm[2],
124 $localtm[1],
125 $localtm[0],
126 ($offset >= 0) ? '+' : '-',
127 abs($offhour),
128 $offmin,
132 my $have_email_valid = eval { require Email::Valid; 1 };
133 my $have_mail_address = eval { require Mail::Address; 1 };
134 my $smtp;
135 my $auth;
137 sub unique_email_list(@);
138 sub cleanup_compose_files();
140 # Variables we fill in automatically, or via prompting:
141 my (@to,$no_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
142 $initial_reply_to,$initial_subject,@files,
143 $author,$sender,$smtp_authpass,$annotate,$compose,$time);
145 my $envelope_sender;
147 # Example reply to:
148 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
150 my $repo = eval { Git->repository() };
151 my @repo = $repo ? ($repo) : ();
152 my $term = eval {
153 $ENV{"GIT_SEND_EMAIL_NOTTY"}
154 ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
155 : new Term::ReadLine 'git-send-email';
157 if ($@) {
158 $term = new FakeTerm "$@: going non-interactive";
161 # Behavior modification variables
162 my ($quiet, $dry_run) = (0, 0);
163 my $format_patch;
164 my $compose_filename;
166 # Handle interactive edition of files.
167 my $multiedit;
168 my $editor;
170 sub do_edit {
171 if (!defined($editor)) {
172 $editor = Git::command_oneline('var', 'GIT_EDITOR');
174 if (defined($multiedit) && !$multiedit) {
175 map {
176 system('sh', '-c', $editor.' "$@"', $editor, $_);
177 if (($? & 127) || ($? >> 8)) {
178 die("the editor exited uncleanly, aborting everything");
180 } @_;
181 } else {
182 system('sh', '-c', $editor.' "$@"', $editor, @_);
183 if (($? & 127) || ($? >> 8)) {
184 die("the editor exited uncleanly, aborting everything");
189 # Variables with corresponding config settings
190 my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc, $cc_cmd);
191 my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
192 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts, $smtp_domain);
193 my ($validate, $confirm);
194 my (@suppress_cc);
195 my ($auto_8bit_encoding);
197 my ($debug_net_smtp) = 0; # Net::SMTP, see send_message()
199 my $not_set_by_user = "true but not set by the user";
201 my %config_bool_settings = (
202 "thread" => [\$thread, 1],
203 "chainreplyto" => [\$chain_reply_to, $not_set_by_user],
204 "suppressfrom" => [\$suppress_from, undef],
205 "signedoffbycc" => [\$signed_off_by_cc, undef],
206 "signedoffcc" => [\$signed_off_by_cc, undef], # Deprecated
207 "validate" => [\$validate, 1],
210 my %config_settings = (
211 "smtpserver" => \$smtp_server,
212 "smtpserverport" => \$smtp_server_port,
213 "smtpuser" => \$smtp_authuser,
214 "smtppass" => \$smtp_authpass,
215 "smtpdomain" => \$smtp_domain,
216 "to" => \@to,
217 "cc" => \@initial_cc,
218 "cccmd" => \$cc_cmd,
219 "aliasfiletype" => \$aliasfiletype,
220 "bcc" => \@bcclist,
221 "aliasesfile" => \@alias_files,
222 "suppresscc" => \@suppress_cc,
223 "envelopesender" => \$envelope_sender,
224 "multiedit" => \$multiedit,
225 "confirm" => \$confirm,
226 "from" => \$sender,
227 "assume8bitencoding" => \$auto_8bit_encoding,
230 # Help users prepare for 1.7.0
231 sub chain_reply_to {
232 if (defined $chain_reply_to &&
233 $chain_reply_to eq $not_set_by_user) {
234 print STDERR
235 "In git 1.7.0, the default has changed to --no-chain-reply-to\n" .
236 "Set sendemail.chainreplyto configuration variable to true if\n" .
237 "you want to keep --chain-reply-to as your default.\n";
238 $chain_reply_to = 0;
240 return $chain_reply_to;
243 # Handle Uncouth Termination
244 sub signal_handler {
246 # Make text normal
247 print color("reset"), "\n";
249 # SMTP password masked
250 system "stty echo";
252 # tmp files from --compose
253 if (defined $compose_filename) {
254 if (-e $compose_filename) {
255 print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
257 if (-e ($compose_filename . ".final")) {
258 print "'$compose_filename.final' contains the composed email.\n"
262 exit;
265 $SIG{TERM} = \&signal_handler;
266 $SIG{INT} = \&signal_handler;
268 # Begin by accumulating all the variables (defined above), that we will end up
269 # needing, first, from the command line:
271 my $rc = GetOptions("sender|from=s" => \$sender,
272 "in-reply-to=s" => \$initial_reply_to,
273 "subject=s" => \$initial_subject,
274 "to=s" => \@to,
275 "no-to" => \$no_to,
276 "cc=s" => \@initial_cc,
277 "no-cc" => \$no_cc,
278 "bcc=s" => \@bcclist,
279 "no-bcc" => \$no_bcc,
280 "chain-reply-to!" => \$chain_reply_to,
281 "smtp-server=s" => \$smtp_server,
282 "smtp-server-port=s" => \$smtp_server_port,
283 "smtp-user=s" => \$smtp_authuser,
284 "smtp-pass:s" => \$smtp_authpass,
285 "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
286 "smtp-encryption=s" => \$smtp_encryption,
287 "smtp-debug:i" => \$debug_net_smtp,
288 "smtp-domain:s" => \$smtp_domain,
289 "identity=s" => \$identity,
290 "annotate" => \$annotate,
291 "compose" => \$compose,
292 "quiet" => \$quiet,
293 "cc-cmd=s" => \$cc_cmd,
294 "suppress-from!" => \$suppress_from,
295 "suppress-cc=s" => \@suppress_cc,
296 "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
297 "confirm=s" => \$confirm,
298 "dry-run" => \$dry_run,
299 "envelope-sender=s" => \$envelope_sender,
300 "thread!" => \$thread,
301 "validate!" => \$validate,
302 "format-patch!" => \$format_patch,
303 "8bit-encoding=s" => \$auto_8bit_encoding,
306 unless ($rc) {
307 usage();
310 die "Cannot run git format-patch from outside a repository\n"
311 if $format_patch and not $repo;
313 # Now, let's fill any that aren't set in with defaults:
315 sub read_config {
316 my ($prefix) = @_;
318 foreach my $setting (keys %config_bool_settings) {
319 my $target = $config_bool_settings{$setting}->[0];
320 $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
323 foreach my $setting (keys %config_settings) {
324 my $target = $config_settings{$setting};
325 next if $setting eq "to" and defined $no_to;
326 next if $setting eq "cc" and defined $no_cc;
327 next if $setting eq "bcc" and defined $no_bcc;
328 if (ref($target) eq "ARRAY") {
329 unless (@$target) {
330 my @values = Git::config(@repo, "$prefix.$setting");
331 @$target = @values if (@values && defined $values[0]);
334 else {
335 $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
339 if (!defined $smtp_encryption) {
340 my $enc = Git::config(@repo, "$prefix.smtpencryption");
341 if (defined $enc) {
342 $smtp_encryption = $enc;
343 } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
344 $smtp_encryption = 'ssl';
349 # read configuration from [sendemail "$identity"], fall back on [sendemail]
350 $identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
351 read_config("sendemail.$identity") if (defined $identity);
352 read_config("sendemail");
354 # fall back on builtin bool defaults
355 foreach my $setting (values %config_bool_settings) {
356 ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
359 # 'default' encryption is none -- this only prevents a warning
360 $smtp_encryption = '' unless (defined $smtp_encryption);
362 # Set CC suppressions
363 my(%suppress_cc);
364 if (@suppress_cc) {
365 foreach my $entry (@suppress_cc) {
366 die "Unknown --suppress-cc field: '$entry'\n"
367 unless $entry =~ /^(all|cccmd|cc|author|self|sob|body|bodycc)$/;
368 $suppress_cc{$entry} = 1;
372 if ($suppress_cc{'all'}) {
373 foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
374 $suppress_cc{$entry} = 1;
376 delete $suppress_cc{'all'};
379 # If explicit old-style ones are specified, they trump --suppress-cc.
380 $suppress_cc{'self'} = $suppress_from if defined $suppress_from;
381 $suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
383 if ($suppress_cc{'body'}) {
384 foreach my $entry (qw (sob bodycc)) {
385 $suppress_cc{$entry} = 1;
387 delete $suppress_cc{'body'};
390 # Set confirm's default value
391 my $confirm_unconfigured = !defined $confirm;
392 if ($confirm_unconfigured) {
393 $confirm = scalar %suppress_cc ? 'compose' : 'auto';
395 die "Unknown --confirm setting: '$confirm'\n"
396 unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
398 # Debugging, print out the suppressions.
399 if (0) {
400 print "suppressions:\n";
401 foreach my $entry (keys %suppress_cc) {
402 printf " %-5s -> $suppress_cc{$entry}\n", $entry;
406 my ($repoauthor, $repocommitter);
407 ($repoauthor) = Git::ident_person(@repo, 'author');
408 ($repocommitter) = Git::ident_person(@repo, 'committer');
410 # Verify the user input
412 foreach my $entry (@to) {
413 die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
416 foreach my $entry (@initial_cc) {
417 die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
420 foreach my $entry (@bcclist) {
421 die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
424 sub parse_address_line {
425 if ($have_mail_address) {
426 return map { $_->format } Mail::Address->parse($_[0]);
427 } else {
428 return split_addrs($_[0]);
432 sub split_addrs {
433 return quotewords('\s*,\s*', 1, @_);
436 my %aliases;
437 my %parse_alias = (
438 # multiline formats can be supported in the future
439 mutt => sub { my $fh = shift; while (<$fh>) {
440 if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
441 my ($alias, $addr) = ($1, $2);
442 $addr =~ s/#.*$//; # mutt allows # comments
443 # commas delimit multiple addresses
444 $aliases{$alias} = [ split_addrs($addr) ];
445 }}},
446 mailrc => sub { my $fh = shift; while (<$fh>) {
447 if (/^alias\s+(\S+)\s+(.*)$/) {
448 # spaces delimit multiple addresses
449 $aliases{$1} = [ quotewords('\s+', 0, $2) ];
450 }}},
451 pine => sub { my $fh = shift; my $f='\t[^\t]*';
452 for (my $x = ''; defined($x); $x = $_) {
453 chomp $x;
454 $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
455 $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
456 $aliases{$1} = [ split_addrs($2) ];
458 elm => sub { my $fh = shift;
459 while (<$fh>) {
460 if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
461 my ($alias, $addr) = ($1, $2);
462 $aliases{$alias} = [ split_addrs($addr) ];
464 } },
466 gnus => sub { my $fh = shift; while (<$fh>) {
467 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
468 $aliases{$1} = [ $2 ];
472 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
473 foreach my $file (@alias_files) {
474 open my $fh, '<', $file or die "opening $file: $!\n";
475 $parse_alias{$aliasfiletype}->($fh);
476 close $fh;
480 ($sender) = expand_aliases($sender) if defined $sender;
482 # returns 1 if the conflict must be solved using it as a format-patch argument
483 sub check_file_rev_conflict($) {
484 return unless $repo;
485 my $f = shift;
486 try {
487 $repo->command('rev-parse', '--verify', '--quiet', $f);
488 if (defined($format_patch)) {
489 return $format_patch;
491 die(<<EOF);
492 File '$f' exists but it could also be the range of commits
493 to produce patches for. Please disambiguate by...
495 * Saying "./$f" if you mean a file; or
496 * Giving --format-patch option if you mean a range.
498 } catch Git::Error::Command with {
499 return 0;
503 # Now that all the defaults are set, process the rest of the command line
504 # arguments and collect up the files that need to be processed.
505 my @rev_list_opts;
506 while (defined(my $f = shift @ARGV)) {
507 if ($f eq "--") {
508 push @rev_list_opts, "--", @ARGV;
509 @ARGV = ();
510 } elsif (-d $f and !check_file_rev_conflict($f)) {
511 opendir(DH,$f)
512 or die "Failed to opendir $f: $!";
514 push @files, grep { -f $_ } map { +$f . "/" . $_ }
515 sort readdir(DH);
516 closedir(DH);
517 } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
518 push @files, $f;
519 } else {
520 push @rev_list_opts, $f;
524 if (@rev_list_opts) {
525 die "Cannot run git format-patch from outside a repository\n"
526 unless $repo;
527 push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
530 if ($validate) {
531 foreach my $f (@files) {
532 unless (-p $f) {
533 my $error = validate_patch($f);
534 $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
539 if (@files) {
540 unless ($quiet) {
541 print $_,"\n" for (@files);
543 } else {
544 print STDERR "\nNo patch files specified!\n\n";
545 usage();
548 sub get_patch_subject($) {
549 my $fn = shift;
550 open (my $fh, '<', $fn);
551 while (my $line = <$fh>) {
552 next unless ($line =~ /^Subject: (.*)$/);
553 close $fh;
554 return "GIT: $1\n";
556 close $fh;
557 die "No subject line in $fn ?";
560 if ($compose) {
561 # Note that this does not need to be secure, but we will make a small
562 # effort to have it be unique
563 $compose_filename = ($repo ?
564 tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
565 tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
566 open(C,">",$compose_filename)
567 or die "Failed to open for writing $compose_filename: $!";
570 my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
571 my $tpl_subject = $initial_subject || '';
572 my $tpl_reply_to = $initial_reply_to || '';
574 print C <<EOT;
575 From $tpl_sender # This line is ignored.
576 GIT: Lines beginning in "GIT:" will be removed.
577 GIT: Consider including an overall diffstat or table of contents
578 GIT: for the patch you are writing.
579 GIT:
580 GIT: Clear the body content if you don't wish to send a summary.
581 From: $tpl_sender
582 Subject: $tpl_subject
583 In-Reply-To: $tpl_reply_to
586 for my $f (@files) {
587 print C get_patch_subject($f);
589 close(C);
591 if ($annotate) {
592 do_edit($compose_filename, @files);
593 } else {
594 do_edit($compose_filename);
597 open(C2,">",$compose_filename . ".final")
598 or die "Failed to open $compose_filename.final : " . $!;
600 open(C,"<",$compose_filename)
601 or die "Failed to open $compose_filename : " . $!;
603 my $need_8bit_cte = file_has_nonascii($compose_filename);
604 my $in_body = 0;
605 my $summary_empty = 1;
606 while(<C>) {
607 next if m/^GIT:/;
608 if ($in_body) {
609 $summary_empty = 0 unless (/^\n$/);
610 } elsif (/^\n$/) {
611 $in_body = 1;
612 if ($need_8bit_cte) {
613 print C2 "MIME-Version: 1.0\n",
614 "Content-Type: text/plain; ",
615 "charset=UTF-8\n",
616 "Content-Transfer-Encoding: 8bit\n";
618 } elsif (/^MIME-Version:/i) {
619 $need_8bit_cte = 0;
620 } elsif (/^Subject:\s*(.+)\s*$/i) {
621 $initial_subject = $1;
622 my $subject = $initial_subject;
623 $_ = "Subject: " .
624 ($subject =~ /[^[:ascii:]]/ ?
625 quote_rfc2047($subject) :
626 $subject) .
627 "\n";
628 } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
629 $initial_reply_to = $1;
630 next;
631 } elsif (/^From:\s*(.+)\s*$/i) {
632 $sender = $1;
633 next;
634 } elsif (/^(?:To|Cc|Bcc):/i) {
635 print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
636 next;
638 print C2 $_;
640 close(C);
641 close(C2);
643 if ($summary_empty) {
644 print "Summary email is empty, skipping it\n";
645 $compose = -1;
647 } elsif ($annotate) {
648 do_edit(@files);
651 sub ask {
652 my ($prompt, %arg) = @_;
653 my $valid_re = $arg{valid_re};
654 my $default = $arg{default};
655 my $resp;
656 my $i = 0;
657 return defined $default ? $default : undef
658 unless defined $term->IN and defined fileno($term->IN) and
659 defined $term->OUT and defined fileno($term->OUT);
660 while ($i++ < 10) {
661 $resp = $term->readline($prompt);
662 if (!defined $resp) { # EOF
663 print "\n";
664 return defined $default ? $default : undef;
666 if ($resp eq '' and defined $default) {
667 return $default;
669 if (!defined $valid_re or $resp =~ /$valid_re/) {
670 return $resp;
673 return undef;
676 my %broken_encoding;
678 sub file_declares_8bit_cte($) {
679 my $fn = shift;
680 open (my $fh, '<', $fn);
681 while (my $line = <$fh>) {
682 last if ($line =~ /^$/);
683 return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
685 close $fh;
686 return 0;
689 foreach my $f (@files) {
690 next unless (body_or_subject_has_nonascii($f)
691 && !file_declares_8bit_cte($f));
692 $broken_encoding{$f} = 1;
695 if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
696 print "The following files are 8bit, but do not declare " .
697 "a Content-Transfer-Encoding.\n";
698 foreach my $f (sort keys %broken_encoding) {
699 print " $f\n";
701 $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
702 default => "UTF-8");
705 my $prompting = 0;
706 if (!defined $sender) {
707 $sender = $repoauthor || $repocommitter || '';
708 $sender = ask("Who should the emails appear to be from? [$sender] ",
709 default => $sender);
710 print "Emails will be sent from: ", $sender, "\n";
711 $prompting++;
714 if (!@to) {
715 my $to = ask("Who should the emails be sent to? ");
716 push @to, parse_address_line($to) if defined $to; # sanitized/validated later
717 $prompting++;
720 sub expand_aliases {
721 return map { expand_one_alias($_) } @_;
724 my %EXPANDED_ALIASES;
725 sub expand_one_alias {
726 my $alias = shift;
727 if ($EXPANDED_ALIASES{$alias}) {
728 die "fatal: alias '$alias' expands to itself\n";
730 local $EXPANDED_ALIASES{$alias} = 1;
731 return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
734 @to = expand_aliases(@to);
735 @to = (map { sanitize_address($_) } @to);
736 @initial_cc = expand_aliases(@initial_cc);
737 @bcclist = expand_aliases(@bcclist);
739 if ($thread && !defined $initial_reply_to && $prompting) {
740 $initial_reply_to = ask(
741 "Message-ID to be used as In-Reply-To for the first email? ");
743 if (defined $initial_reply_to) {
744 $initial_reply_to =~ s/^\s*<?//;
745 $initial_reply_to =~ s/>?\s*$//;
746 $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
749 if (!defined $smtp_server) {
750 foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
751 if (-x $_) {
752 $smtp_server = $_;
753 last;
756 $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
759 if ($compose && $compose > 0) {
760 @files = ($compose_filename . ".final", @files);
763 # Variables we set as part of the loop over files
764 our ($message_id, %mail, $subject, $reply_to, $references, $message,
765 $needs_confirm, $message_num, $ask_default);
767 sub extract_valid_address {
768 my $address = shift;
769 my $local_part_regexp = '[^<>"\s@]+';
770 my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
772 # check for a local address:
773 return $address if ($address =~ /^($local_part_regexp)$/);
775 $address =~ s/^\s*<(.*)>\s*$/$1/;
776 if ($have_email_valid) {
777 return scalar Email::Valid->address($address);
778 } else {
779 # less robust/correct than the monster regexp in Email::Valid,
780 # but still does a 99% job, and one less dependency
781 $address =~ /($local_part_regexp\@$domain_regexp)/;
782 return $1;
786 # Usually don't need to change anything below here.
788 # we make a "fake" message id by taking the current number
789 # of seconds since the beginning of Unix time and tacking on
790 # a random number to the end, in case we are called quicker than
791 # 1 second since the last time we were called.
793 # We'll setup a template for the message id, using the "from" address:
795 my ($message_id_stamp, $message_id_serial);
796 sub make_message_id {
797 my $uniq;
798 if (!defined $message_id_stamp) {
799 $message_id_stamp = sprintf("%s-%s", time, $$);
800 $message_id_serial = 0;
802 $message_id_serial++;
803 $uniq = "$message_id_stamp-$message_id_serial";
805 my $du_part;
806 for ($sender, $repocommitter, $repoauthor) {
807 $du_part = extract_valid_address(sanitize_address($_));
808 last if (defined $du_part and $du_part ne '');
810 if (not defined $du_part or $du_part eq '') {
811 use Sys::Hostname qw();
812 $du_part = 'user@' . Sys::Hostname::hostname();
814 my $message_id_template = "<%s-git-send-email-%s>";
815 $message_id = sprintf($message_id_template, $uniq, $du_part);
816 #print "new message id = $message_id\n"; # Was useful for debugging
821 $time = time - scalar $#files;
823 sub unquote_rfc2047 {
824 local ($_) = @_;
825 my $encoding;
826 if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
827 $encoding = $1;
828 s/_/ /g;
829 s/=([0-9A-F]{2})/chr(hex($1))/eg;
831 return wantarray ? ($_, $encoding) : $_;
834 sub quote_rfc2047 {
835 local $_ = shift;
836 my $encoding = shift || 'UTF-8';
837 s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
838 s/(.*)/=\?$encoding\?q\?$1\?=/;
839 return $_;
842 sub is_rfc2047_quoted {
843 my $s = shift;
844 my $token = '[^][()<>@,;:"\/?.= \000-\037\177-\377]+';
845 my $encoded_text = '[!->@-~]+';
846 length($s) <= 75 &&
847 $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
850 # use the simplest quoting being able to handle the recipient
851 sub sanitize_address {
852 my ($recipient) = @_;
853 my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
855 if (not $recipient_name) {
856 return "$recipient";
859 # if recipient_name is already quoted, do nothing
860 if (is_rfc2047_quoted($recipient_name)) {
861 return $recipient;
864 # rfc2047 is needed if a non-ascii char is included
865 if ($recipient_name =~ /[^[:ascii:]]/) {
866 $recipient_name =~ s/^"(.*)"$/$1/;
867 $recipient_name = quote_rfc2047($recipient_name);
870 # double quotes are needed if specials or CTLs are included
871 elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
872 $recipient_name =~ s/(["\\\r])/\\$1/g;
873 $recipient_name = "\"$recipient_name\"";
876 return "$recipient_name $recipient_addr";
880 # Returns the local Fully Qualified Domain Name (FQDN) if available.
882 # Tightly configured MTAa require that a caller sends a real DNS
883 # domain name that corresponds the IP address in the HELO/EHLO
884 # handshake. This is used to verify the connection and prevent
885 # spammers from trying to hide their identity. If the DNS and IP don't
886 # match, the receiveing MTA may deny the connection.
888 # Here is a deny example of Net::SMTP with the default "localhost.localdomain"
890 # Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
891 # Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
893 # This maildomain*() code is based on ideas in Perl library Test::Reporter
894 # /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
896 sub valid_fqdn {
897 my $domain = shift;
898 return !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
901 sub maildomain_net {
902 my $maildomain;
904 if (eval { require Net::Domain; 1 }) {
905 my $domain = Net::Domain::domainname();
906 $maildomain = $domain if valid_fqdn($domain);
909 return $maildomain;
912 sub maildomain_mta {
913 my $maildomain;
915 if (eval { require Net::SMTP; 1 }) {
916 for my $host (qw(mailhost localhost)) {
917 my $smtp = Net::SMTP->new($host);
918 if (defined $smtp) {
919 my $domain = $smtp->domain;
920 $smtp->quit;
922 $maildomain = $domain if valid_fqdn($domain);
924 last if $maildomain;
929 return $maildomain;
932 sub maildomain {
933 return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
936 # Returns 1 if the message was sent, and 0 otherwise.
937 # In actuality, the whole program dies when there
938 # is an error sending a message.
940 sub send_message {
941 my @recipients = unique_email_list(@to);
942 @cc = (grep { my $cc = extract_valid_address($_);
943 not grep { $cc eq $_ } @recipients
945 map { sanitize_address($_) }
946 @cc);
947 my $to = join (",\n\t", @recipients);
948 @recipients = unique_email_list(@recipients,@cc,@bcclist);
949 @recipients = (map { extract_valid_address($_) } @recipients);
950 my $date = format_2822_time($time++);
951 my $gitversion = '@@GIT_VERSION@@';
952 if ($gitversion =~ m/..GIT_VERSION../) {
953 $gitversion = Git::version();
956 my $cc = join(",\n\t", unique_email_list(@cc));
957 my $ccline = "";
958 if ($cc ne '') {
959 $ccline = "\nCc: $cc";
961 my $sanitized_sender = sanitize_address($sender);
962 make_message_id() unless defined($message_id);
964 my $header = "From: $sanitized_sender
965 To: $to${ccline}
966 Subject: $subject
967 Date: $date
968 Message-Id: $message_id
969 X-Mailer: git-send-email $gitversion
971 if ($reply_to) {
973 $header .= "In-Reply-To: $reply_to\n";
974 $header .= "References: $references\n";
976 if (@xh) {
977 $header .= join("\n", @xh) . "\n";
980 my @sendmail_parameters = ('-i', @recipients);
981 my $raw_from = $sanitized_sender;
982 if (defined $envelope_sender && $envelope_sender ne "auto") {
983 $raw_from = $envelope_sender;
985 $raw_from = extract_valid_address($raw_from);
986 unshift (@sendmail_parameters,
987 '-f', $raw_from) if(defined $envelope_sender);
989 if ($needs_confirm && !$dry_run) {
990 print "\n$header\n";
991 if ($needs_confirm eq "inform") {
992 $confirm_unconfigured = 0; # squelch this message for the rest of this run
993 $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
994 print " The Cc list above has been expanded by additional\n";
995 print " addresses found in the patch commit message. By default\n";
996 print " send-email prompts before sending whenever this occurs.\n";
997 print " This behavior is controlled by the sendemail.confirm\n";
998 print " configuration setting.\n";
999 print "\n";
1000 print " For additional information, run 'git send-email --help'.\n";
1001 print " To retain the current behavior, but squelch this message,\n";
1002 print " run 'git config --global sendemail.confirm auto'.\n\n";
1004 $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
1005 valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1006 default => $ask_default);
1007 die "Send this email reply required" unless defined $_;
1008 if (/^n/i) {
1009 return 0;
1010 } elsif (/^q/i) {
1011 cleanup_compose_files();
1012 exit(0);
1013 } elsif (/^a/i) {
1014 $confirm = 'never';
1018 if ($dry_run) {
1019 # We don't want to send the email.
1020 } elsif ($smtp_server =~ m#^/#) {
1021 my $pid = open my $sm, '|-';
1022 defined $pid or die $!;
1023 if (!$pid) {
1024 exec($smtp_server, @sendmail_parameters) or die $!;
1026 print $sm "$header\n$message";
1027 close $sm or die $?;
1028 } else {
1030 if (!defined $smtp_server) {
1031 die "The required SMTP server is not properly defined."
1034 if ($smtp_encryption eq 'ssl') {
1035 $smtp_server_port ||= 465; # ssmtp
1036 require Net::SMTP::SSL;
1037 $smtp_domain ||= maildomain();
1038 $smtp ||= Net::SMTP::SSL->new($smtp_server,
1039 Hello => $smtp_domain,
1040 Port => $smtp_server_port);
1042 else {
1043 require Net::SMTP;
1044 $smtp_domain ||= maildomain();
1045 $smtp ||= Net::SMTP->new((defined $smtp_server_port)
1046 ? "$smtp_server:$smtp_server_port"
1047 : $smtp_server,
1048 Hello => $smtp_domain,
1049 Debug => $debug_net_smtp);
1050 if ($smtp_encryption eq 'tls' && $smtp) {
1051 require Net::SMTP::SSL;
1052 $smtp->command('STARTTLS');
1053 $smtp->response();
1054 if ($smtp->code == 220) {
1055 $smtp = Net::SMTP::SSL->start_SSL($smtp)
1056 or die "STARTTLS failed! ".$smtp->message;
1057 $smtp_encryption = '';
1058 # Send EHLO again to receive fresh
1059 # supported commands
1060 $smtp->hello();
1061 } else {
1062 die "Server does not support STARTTLS! ".$smtp->message;
1067 if (!$smtp) {
1068 die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ",
1069 "VALUES: server=$smtp_server ",
1070 "encryption=$smtp_encryption ",
1071 "hello=$smtp_domain",
1072 defined $smtp_server_port ? "port=$smtp_server_port" : "";
1075 if (defined $smtp_authuser) {
1077 if (!defined $smtp_authpass) {
1079 system "stty -echo";
1081 do {
1082 print "Password: ";
1083 $_ = <STDIN>;
1084 print "\n";
1085 } while (!defined $_);
1087 chomp($smtp_authpass = $_);
1089 system "stty echo";
1092 $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
1095 $smtp->mail( $raw_from ) or die $smtp->message;
1096 $smtp->to( @recipients ) or die $smtp->message;
1097 $smtp->data or die $smtp->message;
1098 $smtp->datasend("$header\n$message") or die $smtp->message;
1099 $smtp->dataend() or die $smtp->message;
1100 $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
1102 if ($quiet) {
1103 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
1104 } else {
1105 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
1106 if ($smtp_server !~ m#^/#) {
1107 print "Server: $smtp_server\n";
1108 print "MAIL FROM:<$raw_from>\n";
1109 foreach my $entry (@recipients) {
1110 print "RCPT TO:<$entry>\n";
1112 } else {
1113 print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1115 print $header, "\n";
1116 if ($smtp) {
1117 print "Result: ", $smtp->code, ' ',
1118 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1119 } else {
1120 print "Result: OK\n";
1124 return 1;
1127 $reply_to = $initial_reply_to;
1128 $references = $initial_reply_to || '';
1129 $subject = $initial_subject;
1130 $message_num = 0;
1132 foreach my $t (@files) {
1133 open(F,"<",$t) or die "can't open file $t";
1135 my $author = undef;
1136 my $author_encoding;
1137 my $has_content_type;
1138 my $body_encoding;
1139 @cc = ();
1140 @xh = ();
1141 my $input_format = undef;
1142 my @header = ();
1143 $message = "";
1144 $message_num++;
1145 # First unfold multiline header fields
1146 while(<F>) {
1147 last if /^\s*$/;
1148 if (/^\s+\S/ and @header) {
1149 chomp($header[$#header]);
1150 s/^\s+/ /;
1151 $header[$#header] .= $_;
1152 } else {
1153 push(@header, $_);
1156 # Now parse the header
1157 foreach(@header) {
1158 if (/^From /) {
1159 $input_format = 'mbox';
1160 next;
1162 chomp;
1163 if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1164 $input_format = 'mbox';
1167 if (defined $input_format && $input_format eq 'mbox') {
1168 if (/^Subject:\s+(.*)$/) {
1169 $subject = $1;
1171 elsif (/^From:\s+(.*)$/) {
1172 ($author, $author_encoding) = unquote_rfc2047($1);
1173 next if $suppress_cc{'author'};
1174 next if $suppress_cc{'self'} and $author eq $sender;
1175 printf("(mbox) Adding cc: %s from line '%s'\n",
1176 $1, $_) unless $quiet;
1177 push @cc, $1;
1179 elsif (/^Cc:\s+(.*)$/) {
1180 foreach my $addr (parse_address_line($1)) {
1181 if (unquote_rfc2047($addr) eq $sender) {
1182 next if ($suppress_cc{'self'});
1183 } else {
1184 next if ($suppress_cc{'cc'});
1186 printf("(mbox) Adding cc: %s from line '%s'\n",
1187 $addr, $_) unless $quiet;
1188 push @cc, $addr;
1191 elsif (/^Content-type:/i) {
1192 $has_content_type = 1;
1193 if (/charset="?([^ "]+)/) {
1194 $body_encoding = $1;
1196 push @xh, $_;
1198 elsif (/^Message-Id: (.*)/i) {
1199 $message_id = $1;
1201 elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1202 push @xh, $_;
1205 } else {
1206 # In the traditional
1207 # "send lots of email" format,
1208 # line 1 = cc
1209 # line 2 = subject
1210 # So let's support that, too.
1211 $input_format = 'lots';
1212 if (@cc == 0 && !$suppress_cc{'cc'}) {
1213 printf("(non-mbox) Adding cc: %s from line '%s'\n",
1214 $_, $_) unless $quiet;
1215 push @cc, $_;
1216 } elsif (!defined $subject) {
1217 $subject = $_;
1221 # Now parse the message body
1222 while(<F>) {
1223 $message .= $_;
1224 if (/^(Signed-off-by|Cc): (.*)$/i) {
1225 chomp;
1226 my ($what, $c) = ($1, $2);
1227 chomp $c;
1228 if ($c eq $sender) {
1229 next if ($suppress_cc{'self'});
1230 } else {
1231 next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1232 next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1234 push @cc, $c;
1235 printf("(body) Adding cc: %s from line '%s'\n",
1236 $c, $_) unless $quiet;
1239 close F;
1241 if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
1242 open(F, "$cc_cmd \Q$t\E |")
1243 or die "(cc-cmd) Could not execute '$cc_cmd'";
1244 while(<F>) {
1245 my $c = $_;
1246 $c =~ s/^\s*//g;
1247 $c =~ s/\n$//g;
1248 next if ($c eq $sender and $suppress_from);
1249 push @cc, $c;
1250 printf("(cc-cmd) Adding cc: %s from: '%s'\n",
1251 $c, $cc_cmd) unless $quiet;
1253 close F
1254 or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
1257 if ($broken_encoding{$t} && !$has_content_type) {
1258 $has_content_type = 1;
1259 push @xh, "MIME-Version: 1.0",
1260 "Content-Type: text/plain; charset=$auto_8bit_encoding",
1261 "Content-Transfer-Encoding: 8bit";
1262 $body_encoding = $auto_8bit_encoding;
1265 if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1266 $subject = quote_rfc2047($subject, $auto_8bit_encoding);
1269 if (defined $author and $author ne $sender) {
1270 $message = "From: $author\n\n$message";
1271 if (defined $author_encoding) {
1272 if ($has_content_type) {
1273 if ($body_encoding eq $author_encoding) {
1274 # ok, we already have the right encoding
1276 else {
1277 # uh oh, we should re-encode
1280 else {
1281 $has_content_type = 1;
1282 push @xh,
1283 'MIME-Version: 1.0',
1284 "Content-Type: text/plain; charset=$author_encoding",
1285 'Content-Transfer-Encoding: 8bit';
1290 $needs_confirm = (
1291 $confirm eq "always" or
1292 ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1293 ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1294 $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1296 @cc = (@initial_cc, @cc);
1298 my $message_was_sent = send_message();
1300 # set up for the next message
1301 if ($thread && $message_was_sent &&
1302 (chain_reply_to() || !defined $reply_to || length($reply_to) == 0)) {
1303 $reply_to = $message_id;
1304 if (length $references > 0) {
1305 $references .= "\n $message_id";
1306 } else {
1307 $references = "$message_id";
1310 $message_id = undef;
1313 cleanup_compose_files();
1315 sub cleanup_compose_files() {
1316 unlink($compose_filename, $compose_filename . ".final") if $compose;
1319 $smtp->quit if $smtp;
1321 sub unique_email_list(@) {
1322 my %seen;
1323 my @emails;
1325 foreach my $entry (@_) {
1326 if (my $clean = extract_valid_address($entry)) {
1327 $seen{$clean} ||= 0;
1328 next if $seen{$clean}++;
1329 push @emails, $entry;
1330 } else {
1331 print STDERR "W: unable to extract a valid address",
1332 " from: $entry\n";
1335 return @emails;
1338 sub validate_patch {
1339 my $fn = shift;
1340 open(my $fh, '<', $fn)
1341 or die "unable to open $fn: $!\n";
1342 while (my $line = <$fh>) {
1343 if (length($line) > 998) {
1344 return "$.: patch contains a line longer than 998 characters";
1347 return undef;
1350 sub file_has_nonascii {
1351 my $fn = shift;
1352 open(my $fh, '<', $fn)
1353 or die "unable to open $fn: $!\n";
1354 while (my $line = <$fh>) {
1355 return 1 if $line =~ /[^[:ascii:]]/;
1357 return 0;
1360 sub body_or_subject_has_nonascii {
1361 my $fn = shift;
1362 open(my $fh, '<', $fn)
1363 or die "unable to open $fn: $!\n";
1364 while (my $line = <$fh>) {
1365 last if $line =~ /^$/;
1366 return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1368 while (my $line = <$fh>) {
1369 return 1 if $line =~ /[^[:ascii:]]/;
1371 return 0;