Code

Merge branch 'pb/maint-use-custom-perl'
[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 #
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;
36 }
37 sub readline {
38         my $self = shift;
39         die "Cannot use readline on FakeTerm: $$self";
40 }
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     --to                    <str>  * Email To:
51     --cc                    <str>  * Email Cc:
52     --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.
58   Sending:
59     --envelope-sender       <str>  * Email envelope sender.
60     --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
61                                      is optional. Default 'localhost'.
62     --smtp-server-port      <int>  * Outgoing SMTP server port.
63     --smtp-user             <str>  * Username for SMTP-AUTH.
64     --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
65     --smtp-encryption       <str>  * tls or ssl; anything else disables.
66     --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
68   Automating:
69     --identity              <str>  * Use the sendemail.<id> options.
70     --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
71     --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
72     --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
73     --[no-]suppress-from           * Send to self. Default off.
74     --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default on.
75     --[no-]thread                  * Use In-Reply-To: field. Default on.
77   Administering:
78     --confirm               <str>  * Confirm recipients before sending;
79                                      auto, cc, compose, always, or never.
80     --quiet                        * Output one line of info per email.
81     --dry-run                      * Don't actually send the emails.
82     --[no-]validate                * Perform patch sanity checks. Default on.
83     --[no-]format-patch            * understand any non optional arguments as
84                                      `git format-patch` ones.
86 EOT
87         exit(1);
88 }
90 # most mail servers generate the Date: header, but not all...
91 sub format_2822_time {
92         my ($time) = @_;
93         my @localtm = localtime($time);
94         my @gmttm = gmtime($time);
95         my $localmin = $localtm[1] + $localtm[2] * 60;
96         my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
97         if ($localtm[0] != $gmttm[0]) {
98                 die "local zone differs from GMT by a non-minute interval\n";
99         }
100         if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
101                 $localmin += 1440;
102         } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
103                 $localmin -= 1440;
104         } elsif ($gmttm[6] != $localtm[6]) {
105                 die "local time offset greater than or equal to 24 hours\n";
106         }
107         my $offset = $localmin - $gmtmin;
108         my $offhour = $offset / 60;
109         my $offmin = abs($offset % 60);
110         if (abs($offhour) >= 24) {
111                 die ("local time offset greater than or equal to 24 hours\n");
112         }
114         return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
115                        qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
116                        $localtm[3],
117                        qw(Jan Feb Mar Apr May Jun
118                           Jul Aug Sep Oct Nov Dec)[$localtm[4]],
119                        $localtm[5]+1900,
120                        $localtm[2],
121                        $localtm[1],
122                        $localtm[0],
123                        ($offset >= 0) ? '+' : '-',
124                        abs($offhour),
125                        $offmin,
126                        );
129 my $have_email_valid = eval { require Email::Valid; 1 };
130 my $have_mail_address = eval { require Mail::Address; 1 };
131 my $smtp;
132 my $auth;
134 sub unique_email_list(@);
135 sub cleanup_compose_files();
137 # Variables we fill in automatically, or via prompting:
138 my (@to,@cc,@initial_cc,@bcclist,@xh,
139         $initial_reply_to,$initial_subject,@files,
140         $author,$sender,$smtp_authpass,$annotate,$compose,$time);
142 my $envelope_sender;
144 # Example reply to:
145 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
147 my $repo = eval { Git->repository() };
148 my @repo = $repo ? ($repo) : ();
149 my $term = eval {
150         $ENV{"GIT_SEND_EMAIL_NOTTY"}
151                 ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
152                 : new Term::ReadLine 'git-send-email';
153 };
154 if ($@) {
155         $term = new FakeTerm "$@: going non-interactive";
158 # Behavior modification variables
159 my ($quiet, $dry_run) = (0, 0);
160 my $format_patch;
161 my $compose_filename;
163 # Handle interactive edition of files.
164 my $multiedit;
165 my $editor = Git::command_oneline('var', 'GIT_EDITOR');
167 sub do_edit {
168         if (defined($multiedit) && !$multiedit) {
169                 map {
170                         system('sh', '-c', $editor.' "$@"', $editor, $_);
171                         if (($? & 127) || ($? >> 8)) {
172                                 die("the editor exited uncleanly, aborting everything");
173                         }
174                 } @_;
175         } else {
176                 system('sh', '-c', $editor.' "$@"', $editor, @_);
177                 if (($? & 127) || ($? >> 8)) {
178                         die("the editor exited uncleanly, aborting everything");
179                 }
180         }
183 # Variables with corresponding config settings
184 my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc, $cc_cmd);
185 my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
186 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
187 my ($validate, $confirm);
188 my (@suppress_cc);
190 my %config_bool_settings = (
191     "thread" => [\$thread, 1],
192     "chainreplyto" => [\$chain_reply_to, 1],
193     "suppressfrom" => [\$suppress_from, undef],
194     "signedoffbycc" => [\$signed_off_by_cc, undef],
195     "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
196     "validate" => [\$validate, 1],
197 );
199 my %config_settings = (
200     "smtpserver" => \$smtp_server,
201     "smtpserverport" => \$smtp_server_port,
202     "smtpuser" => \$smtp_authuser,
203     "smtppass" => \$smtp_authpass,
204     "to" => \@to,
205     "cc" => \@initial_cc,
206     "cccmd" => \$cc_cmd,
207     "aliasfiletype" => \$aliasfiletype,
208     "bcc" => \@bcclist,
209     "aliasesfile" => \@alias_files,
210     "suppresscc" => \@suppress_cc,
211     "envelopesender" => \$envelope_sender,
212     "multiedit" => \$multiedit,
213     "confirm"   => \$confirm,
214     "from" => \$sender,
215 );
217 # Handle Uncouth Termination
218 sub signal_handler {
220         # Make text normal
221         print color("reset"), "\n";
223         # SMTP password masked
224         system "stty echo";
226         # tmp files from --compose
227         if (defined $compose_filename) {
228                 if (-e $compose_filename) {
229                         print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
230                 }
231                 if (-e ($compose_filename . ".final")) {
232                         print "'$compose_filename.final' contains the composed email.\n"
233                 }
234         }
236         exit;
237 };
239 $SIG{TERM} = \&signal_handler;
240 $SIG{INT}  = \&signal_handler;
242 # Begin by accumulating all the variables (defined above), that we will end up
243 # needing, first, from the command line:
245 my $rc = GetOptions("sender|from=s" => \$sender,
246                     "in-reply-to=s" => \$initial_reply_to,
247                     "subject=s" => \$initial_subject,
248                     "to=s" => \@to,
249                     "cc=s" => \@initial_cc,
250                     "bcc=s" => \@bcclist,
251                     "chain-reply-to!" => \$chain_reply_to,
252                     "smtp-server=s" => \$smtp_server,
253                     "smtp-server-port=s" => \$smtp_server_port,
254                     "smtp-user=s" => \$smtp_authuser,
255                     "smtp-pass:s" => \$smtp_authpass,
256                     "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
257                     "smtp-encryption=s" => \$smtp_encryption,
258                     "identity=s" => \$identity,
259                     "annotate" => \$annotate,
260                     "compose" => \$compose,
261                     "quiet" => \$quiet,
262                     "cc-cmd=s" => \$cc_cmd,
263                     "suppress-from!" => \$suppress_from,
264                     "suppress-cc=s" => \@suppress_cc,
265                     "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
266                     "confirm=s" => \$confirm,
267                     "dry-run" => \$dry_run,
268                     "envelope-sender=s" => \$envelope_sender,
269                     "thread!" => \$thread,
270                     "validate!" => \$validate,
271                     "format-patch!" => \$format_patch,
272          );
274 unless ($rc) {
275     usage();
278 die "Cannot run git format-patch from outside a repository\n"
279         if $format_patch and not $repo;
281 # Now, let's fill any that aren't set in with defaults:
283 sub read_config {
284         my ($prefix) = @_;
286         foreach my $setting (keys %config_bool_settings) {
287                 my $target = $config_bool_settings{$setting}->[0];
288                 $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
289         }
291         foreach my $setting (keys %config_settings) {
292                 my $target = $config_settings{$setting};
293                 if (ref($target) eq "ARRAY") {
294                         unless (@$target) {
295                                 my @values = Git::config(@repo, "$prefix.$setting");
296                                 @$target = @values if (@values && defined $values[0]);
297                         }
298                 }
299                 else {
300                         $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
301                 }
302         }
304         if (!defined $smtp_encryption) {
305                 my $enc = Git::config(@repo, "$prefix.smtpencryption");
306                 if (defined $enc) {
307                         $smtp_encryption = $enc;
308                 } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
309                         $smtp_encryption = 'ssl';
310                 }
311         }
314 # read configuration from [sendemail "$identity"], fall back on [sendemail]
315 $identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
316 read_config("sendemail.$identity") if (defined $identity);
317 read_config("sendemail");
319 # fall back on builtin bool defaults
320 foreach my $setting (values %config_bool_settings) {
321         ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
324 # 'default' encryption is none -- this only prevents a warning
325 $smtp_encryption = '' unless (defined $smtp_encryption);
327 # Set CC suppressions
328 my(%suppress_cc);
329 if (@suppress_cc) {
330         foreach my $entry (@suppress_cc) {
331                 die "Unknown --suppress-cc field: '$entry'\n"
332                         unless $entry =~ /^(all|cccmd|cc|author|self|sob|body|bodycc)$/;
333                 $suppress_cc{$entry} = 1;
334         }
337 if ($suppress_cc{'all'}) {
338         foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
339                 $suppress_cc{$entry} = 1;
340         }
341         delete $suppress_cc{'all'};
344 # If explicit old-style ones are specified, they trump --suppress-cc.
345 $suppress_cc{'self'} = $suppress_from if defined $suppress_from;
346 $suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
348 if ($suppress_cc{'body'}) {
349         foreach my $entry (qw (sob bodycc)) {
350                 $suppress_cc{$entry} = 1;
351         }
352         delete $suppress_cc{'body'};
355 # Set confirm's default value
356 my $confirm_unconfigured = !defined $confirm;
357 if ($confirm_unconfigured) {
358         $confirm = scalar %suppress_cc ? 'compose' : 'auto';
359 };
360 die "Unknown --confirm setting: '$confirm'\n"
361         unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
363 # Debugging, print out the suppressions.
364 if (0) {
365         print "suppressions:\n";
366         foreach my $entry (keys %suppress_cc) {
367                 printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
368         }
371 my ($repoauthor, $repocommitter);
372 ($repoauthor) = Git::ident_person(@repo, 'author');
373 ($repocommitter) = Git::ident_person(@repo, 'committer');
375 # Verify the user input
377 foreach my $entry (@to) {
378         die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
381 foreach my $entry (@initial_cc) {
382         die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
385 foreach my $entry (@bcclist) {
386         die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
389 sub parse_address_line {
390         if ($have_mail_address) {
391                 return map { $_->format } Mail::Address->parse($_[0]);
392         } else {
393                 return split_addrs($_[0]);
394         }
397 sub split_addrs {
398         return quotewords('\s*,\s*', 1, @_);
401 my %aliases;
402 my %parse_alias = (
403         # multiline formats can be supported in the future
404         mutt => sub { my $fh = shift; while (<$fh>) {
405                 if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
406                         my ($alias, $addr) = ($1, $2);
407                         $addr =~ s/#.*$//; # mutt allows # comments
408                          # commas delimit multiple addresses
409                         $aliases{$alias} = [ split_addrs($addr) ];
410                 }}},
411         mailrc => sub { my $fh = shift; while (<$fh>) {
412                 if (/^alias\s+(\S+)\s+(.*)$/) {
413                         # spaces delimit multiple addresses
414                         $aliases{$1} = [ quotewords('\s+', 0, $2) ];
415                 }}},
416         pine => sub { my $fh = shift; my $f='\t[^\t]*';
417                 for (my $x = ''; defined($x); $x = $_) {
418                         chomp $x;
419                         $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
420                         $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
421                         $aliases{$1} = [ split_addrs($2) ];
422                 }},
423         elm => sub  { my $fh = shift;
424                       while (<$fh>) {
425                           if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
426                               my ($alias, $addr) = ($1, $2);
427                                $aliases{$alias} = [ split_addrs($addr) ];
428                           }
429                       } },
431         gnus => sub { my $fh = shift; while (<$fh>) {
432                 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
433                         $aliases{$1} = [ $2 ];
434                 }}}
435 );
437 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
438         foreach my $file (@alias_files) {
439                 open my $fh, '<', $file or die "opening $file: $!\n";
440                 $parse_alias{$aliasfiletype}->($fh);
441                 close $fh;
442         }
445 ($sender) = expand_aliases($sender) if defined $sender;
447 # returns 1 if the conflict must be solved using it as a format-patch argument
448 sub check_file_rev_conflict($) {
449         return unless $repo;
450         my $f = shift;
451         try {
452                 $repo->command('rev-parse', '--verify', '--quiet', $f);
453                 if (defined($format_patch)) {
454                         return $format_patch;
455                 }
456                 die(<<EOF);
457 File '$f' exists but it could also be the range of commits
458 to produce patches for.  Please disambiguate by...
460     * Saying "./$f" if you mean a file; or
461     * Giving --format-patch option if you mean a range.
462 EOF
463         } catch Git::Error::Command with {
464                 return 0;
465         }
468 # Now that all the defaults are set, process the rest of the command line
469 # arguments and collect up the files that need to be processed.
470 my @rev_list_opts;
471 while (defined(my $f = shift @ARGV)) {
472         if ($f eq "--") {
473                 push @rev_list_opts, "--", @ARGV;
474                 @ARGV = ();
475         } elsif (-d $f and !check_file_rev_conflict($f)) {
476                 opendir(DH,$f)
477                         or die "Failed to opendir $f: $!";
479                 push @files, grep { -f $_ } map { +$f . "/" . $_ }
480                                 sort readdir(DH);
481                 closedir(DH);
482         } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
483                 push @files, $f;
484         } else {
485                 push @rev_list_opts, $f;
486         }
489 if (@rev_list_opts) {
490         die "Cannot run git format-patch from outside a repository\n"
491                 unless $repo;
492         push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
495 if ($validate) {
496         foreach my $f (@files) {
497                 unless (-p $f) {
498                         my $error = validate_patch($f);
499                         $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
500                 }
501         }
504 if (@files) {
505         unless ($quiet) {
506                 print $_,"\n" for (@files);
507         }
508 } else {
509         print STDERR "\nNo patch files specified!\n\n";
510         usage();
513 sub get_patch_subject($) {
514         my $fn = shift;
515         open (my $fh, '<', $fn);
516         while (my $line = <$fh>) {
517                 next unless ($line =~ /^Subject: (.*)$/);
518                 close $fh;
519                 return "GIT: $1\n";
520         }
521         close $fh;
522         die "No subject line in $fn ?";
525 if ($compose) {
526         # Note that this does not need to be secure, but we will make a small
527         # effort to have it be unique
528         $compose_filename = ($repo ?
529                 tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
530                 tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
531         open(C,">",$compose_filename)
532                 or die "Failed to open for writing $compose_filename: $!";
535         my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
536         my $tpl_subject = $initial_subject || '';
537         my $tpl_reply_to = $initial_reply_to || '';
539         print C <<EOT;
540 From $tpl_sender # This line is ignored.
541 GIT: Lines beginning in "GIT:" will be removed.
542 GIT: Consider including an overall diffstat or table of contents
543 GIT: for the patch you are writing.
544 GIT:
545 GIT: Clear the body content if you don't wish to send a summary.
546 From: $tpl_sender
547 Subject: $tpl_subject
548 In-Reply-To: $tpl_reply_to
550 EOT
551         for my $f (@files) {
552                 print C get_patch_subject($f);
553         }
554         close(C);
556         if ($annotate) {
557                 do_edit($compose_filename, @files);
558         } else {
559                 do_edit($compose_filename);
560         }
562         open(C2,">",$compose_filename . ".final")
563                 or die "Failed to open $compose_filename.final : " . $!;
565         open(C,"<",$compose_filename)
566                 or die "Failed to open $compose_filename : " . $!;
568         my $need_8bit_cte = file_has_nonascii($compose_filename);
569         my $in_body = 0;
570         my $summary_empty = 1;
571         while(<C>) {
572                 next if m/^GIT:/;
573                 if ($in_body) {
574                         $summary_empty = 0 unless (/^\n$/);
575                 } elsif (/^\n$/) {
576                         $in_body = 1;
577                         if ($need_8bit_cte) {
578                                 print C2 "MIME-Version: 1.0\n",
579                                          "Content-Type: text/plain; ",
580                                            "charset=UTF-8\n",
581                                          "Content-Transfer-Encoding: 8bit\n";
582                         }
583                 } elsif (/^MIME-Version:/i) {
584                         $need_8bit_cte = 0;
585                 } elsif (/^Subject:\s*(.+)\s*$/i) {
586                         $initial_subject = $1;
587                         my $subject = $initial_subject;
588                         $_ = "Subject: " .
589                                 ($subject =~ /[^[:ascii:]]/ ?
590                                  quote_rfc2047($subject) :
591                                  $subject) .
592                                 "\n";
593                 } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
594                         $initial_reply_to = $1;
595                         next;
596                 } elsif (/^From:\s*(.+)\s*$/i) {
597                         $sender = $1;
598                         next;
599                 } elsif (/^(?:To|Cc|Bcc):/i) {
600                         print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
601                         next;
602                 }
603                 print C2 $_;
604         }
605         close(C);
606         close(C2);
608         if ($summary_empty) {
609                 print "Summary email is empty, skipping it\n";
610                 $compose = -1;
611         }
612 } elsif ($annotate) {
613         do_edit(@files);
616 sub ask {
617         my ($prompt, %arg) = @_;
618         my $valid_re = $arg{valid_re};
619         my $default = $arg{default};
620         my $resp;
621         my $i = 0;
622         return defined $default ? $default : undef
623                 unless defined $term->IN and defined fileno($term->IN) and
624                        defined $term->OUT and defined fileno($term->OUT);
625         while ($i++ < 10) {
626                 $resp = $term->readline($prompt);
627                 if (!defined $resp) { # EOF
628                         print "\n";
629                         return defined $default ? $default : undef;
630                 }
631                 if ($resp eq '' and defined $default) {
632                         return $default;
633                 }
634                 if (!defined $valid_re or $resp =~ /$valid_re/) {
635                         return $resp;
636                 }
637         }
638         return undef;
641 my $prompting = 0;
642 if (!defined $sender) {
643         $sender = $repoauthor || $repocommitter || '';
644         $sender = ask("Who should the emails appear to be from? [$sender] ",
645                       default => $sender);
646         print "Emails will be sent from: ", $sender, "\n";
647         $prompting++;
650 if (!@to) {
651         my $to = ask("Who should the emails be sent to? ");
652         push @to, parse_address_line($to) if defined $to; # sanitized/validated later
653         $prompting++;
656 sub expand_aliases {
657         return map { expand_one_alias($_) } @_;
660 my %EXPANDED_ALIASES;
661 sub expand_one_alias {
662         my $alias = shift;
663         if ($EXPANDED_ALIASES{$alias}) {
664                 die "fatal: alias '$alias' expands to itself\n";
665         }
666         local $EXPANDED_ALIASES{$alias} = 1;
667         return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
670 @to = expand_aliases(@to);
671 @to = (map { sanitize_address($_) } @to);
672 @initial_cc = expand_aliases(@initial_cc);
673 @bcclist = expand_aliases(@bcclist);
675 if ($thread && !defined $initial_reply_to && $prompting) {
676         $initial_reply_to = ask(
677                 "Message-ID to be used as In-Reply-To for the first email? ");
679 if (defined $initial_reply_to) {
680         $initial_reply_to =~ s/^\s*<?//;
681         $initial_reply_to =~ s/>?\s*$//;
682         $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
685 if (!defined $smtp_server) {
686         foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
687                 if (-x $_) {
688                         $smtp_server = $_;
689                         last;
690                 }
691         }
692         $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
695 if ($compose && $compose > 0) {
696         @files = ($compose_filename . ".final", @files);
699 # Variables we set as part of the loop over files
700 our ($message_id, %mail, $subject, $reply_to, $references, $message,
701         $needs_confirm, $message_num, $ask_default);
703 sub extract_valid_address {
704         my $address = shift;
705         my $local_part_regexp = '[^<>"\s@]+';
706         my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
708         # check for a local address:
709         return $address if ($address =~ /^($local_part_regexp)$/);
711         $address =~ s/^\s*<(.*)>\s*$/$1/;
712         if ($have_email_valid) {
713                 return scalar Email::Valid->address($address);
714         } else {
715                 # less robust/correct than the monster regexp in Email::Valid,
716                 # but still does a 99% job, and one less dependency
717                 $address =~ /($local_part_regexp\@$domain_regexp)/;
718                 return $1;
719         }
722 # Usually don't need to change anything below here.
724 # we make a "fake" message id by taking the current number
725 # of seconds since the beginning of Unix time and tacking on
726 # a random number to the end, in case we are called quicker than
727 # 1 second since the last time we were called.
729 # We'll setup a template for the message id, using the "from" address:
731 my ($message_id_stamp, $message_id_serial);
732 sub make_message_id
734         my $uniq;
735         if (!defined $message_id_stamp) {
736                 $message_id_stamp = sprintf("%s-%s", time, $$);
737                 $message_id_serial = 0;
738         }
739         $message_id_serial++;
740         $uniq = "$message_id_stamp-$message_id_serial";
742         my $du_part;
743         for ($sender, $repocommitter, $repoauthor) {
744                 $du_part = extract_valid_address(sanitize_address($_));
745                 last if (defined $du_part and $du_part ne '');
746         }
747         if (not defined $du_part or $du_part eq '') {
748                 use Sys::Hostname qw();
749                 $du_part = 'user@' . Sys::Hostname::hostname();
750         }
751         my $message_id_template = "<%s-git-send-email-%s>";
752         $message_id = sprintf($message_id_template, $uniq, $du_part);
753         #print "new message id = $message_id\n"; # Was useful for debugging
758 $time = time - scalar $#files;
760 sub unquote_rfc2047 {
761         local ($_) = @_;
762         my $encoding;
763         if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
764                 $encoding = $1;
765                 s/_/ /g;
766                 s/=([0-9A-F]{2})/chr(hex($1))/eg;
767         }
768         return wantarray ? ($_, $encoding) : $_;
771 sub quote_rfc2047 {
772         local $_ = shift;
773         my $encoding = shift || 'UTF-8';
774         s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
775         s/(.*)/=\?$encoding\?q\?$1\?=/;
776         return $_;
779 sub is_rfc2047_quoted {
780         my $s = shift;
781         my $token = '[^][()<>@,;:"\/?.= \000-\037\177-\377]+';
782         my $encoded_text = '[!->@-~]+';
783         length($s) <= 75 &&
784         $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
787 # use the simplest quoting being able to handle the recipient
788 sub sanitize_address
790         my ($recipient) = @_;
791         my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
793         if (not $recipient_name) {
794                 return "$recipient";
795         }
797         # if recipient_name is already quoted, do nothing
798         if (is_rfc2047_quoted($recipient_name)) {
799                 return $recipient;
800         }
802         # rfc2047 is needed if a non-ascii char is included
803         if ($recipient_name =~ /[^[:ascii:]]/) {
804                 $recipient_name =~ s/^"(.*)"$/$1/;
805                 $recipient_name = quote_rfc2047($recipient_name);
806         }
808         # double quotes are needed if specials or CTLs are included
809         elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
810                 $recipient_name =~ s/(["\\\r])/\\$1/g;
811                 $recipient_name = "\"$recipient_name\"";
812         }
814         return "$recipient_name $recipient_addr";
818 # Returns 1 if the message was sent, and 0 otherwise.
819 # In actuality, the whole program dies when there
820 # is an error sending a message.
822 sub send_message
824         my @recipients = unique_email_list(@to);
825         @cc = (grep { my $cc = extract_valid_address($_);
826                       not grep { $cc eq $_ } @recipients
827                     }
828                map { sanitize_address($_) }
829                @cc);
830         my $to = join (",\n\t", @recipients);
831         @recipients = unique_email_list(@recipients,@cc,@bcclist);
832         @recipients = (map { extract_valid_address($_) } @recipients);
833         my $date = format_2822_time($time++);
834         my $gitversion = '@@GIT_VERSION@@';
835         if ($gitversion =~ m/..GIT_VERSION../) {
836             $gitversion = Git::version();
837         }
839         my $cc = join(",\n\t", unique_email_list(@cc));
840         my $ccline = "";
841         if ($cc ne '') {
842                 $ccline = "\nCc: $cc";
843         }
844         my $sanitized_sender = sanitize_address($sender);
845         make_message_id() unless defined($message_id);
847         my $header = "From: $sanitized_sender
848 To: $to${ccline}
849 Subject: $subject
850 Date: $date
851 Message-Id: $message_id
852 X-Mailer: git-send-email $gitversion
853 ";
854         if ($reply_to) {
856                 $header .= "In-Reply-To: $reply_to\n";
857                 $header .= "References: $references\n";
858         }
859         if (@xh) {
860                 $header .= join("\n", @xh) . "\n";
861         }
863         my @sendmail_parameters = ('-i', @recipients);
864         my $raw_from = $sanitized_sender;
865         $raw_from = $envelope_sender if (defined $envelope_sender);
866         $raw_from = extract_valid_address($raw_from);
867         unshift (@sendmail_parameters,
868                         '-f', $raw_from) if(defined $envelope_sender);
870         if ($needs_confirm && !$dry_run) {
871                 print "\n$header\n";
872                 if ($needs_confirm eq "inform") {
873                         $confirm_unconfigured = 0; # squelch this message for the rest of this run
874                         $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
875                         print "    The Cc list above has been expanded by additional\n";
876                         print "    addresses found in the patch commit message. By default\n";
877                         print "    send-email prompts before sending whenever this occurs.\n";
878                         print "    This behavior is controlled by the sendemail.confirm\n";
879                         print "    configuration setting.\n";
880                         print "\n";
881                         print "    For additional information, run 'git send-email --help'.\n";
882                         print "    To retain the current behavior, but squelch this message,\n";
883                         print "    run 'git config --global sendemail.confirm auto'.\n\n";
884                 }
885                 $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
886                          valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
887                          default => $ask_default);
888                 die "Send this email reply required" unless defined $_;
889                 if (/^n/i) {
890                         return 0;
891                 } elsif (/^q/i) {
892                         cleanup_compose_files();
893                         exit(0);
894                 } elsif (/^a/i) {
895                         $confirm = 'never';
896                 }
897         }
899         if ($dry_run) {
900                 # We don't want to send the email.
901         } elsif ($smtp_server =~ m#^/#) {
902                 my $pid = open my $sm, '|-';
903                 defined $pid or die $!;
904                 if (!$pid) {
905                         exec($smtp_server, @sendmail_parameters) or die $!;
906                 }
907                 print $sm "$header\n$message";
908                 close $sm or die $?;
909         } else {
911                 if (!defined $smtp_server) {
912                         die "The required SMTP server is not properly defined."
913                 }
915                 if ($smtp_encryption eq 'ssl') {
916                         $smtp_server_port ||= 465; # ssmtp
917                         require Net::SMTP::SSL;
918                         $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
919                 }
920                 else {
921                         require Net::SMTP;
922                         $smtp ||= Net::SMTP->new((defined $smtp_server_port)
923                                                  ? "$smtp_server:$smtp_server_port"
924                                                  : $smtp_server);
925                         if ($smtp_encryption eq 'tls' && $smtp) {
926                                 require Net::SMTP::SSL;
927                                 $smtp->command('STARTTLS');
928                                 $smtp->response();
929                                 if ($smtp->code == 220) {
930                                         $smtp = Net::SMTP::SSL->start_SSL($smtp)
931                                                 or die "STARTTLS failed! ".$smtp->message;
932                                         $smtp_encryption = '';
933                                         # Send EHLO again to receive fresh
934                                         # supported commands
935                                         $smtp->hello();
936                                 } else {
937                                         die "Server does not support STARTTLS! ".$smtp->message;
938                                 }
939                         }
940                 }
942                 if (!$smtp) {
943                         die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
944                 }
946                 if (defined $smtp_authuser) {
948                         if (!defined $smtp_authpass) {
950                                 system "stty -echo";
952                                 do {
953                                         print "Password: ";
954                                         $_ = <STDIN>;
955                                         print "\n";
956                                 } while (!defined $_);
958                                 chomp($smtp_authpass = $_);
960                                 system "stty echo";
961                         }
963                         $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
964                 }
966                 $smtp->mail( $raw_from ) or die $smtp->message;
967                 $smtp->to( @recipients ) or die $smtp->message;
968                 $smtp->data or die $smtp->message;
969                 $smtp->datasend("$header\n$message") or die $smtp->message;
970                 $smtp->dataend() or die $smtp->message;
971                 $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
972         }
973         if ($quiet) {
974                 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
975         } else {
976                 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
977                 if ($smtp_server !~ m#^/#) {
978                         print "Server: $smtp_server\n";
979                         print "MAIL FROM:<$raw_from>\n";
980                         foreach my $entry (@recipients) {
981                             print "RCPT TO:<$entry>\n";
982                         }
983                 } else {
984                         print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
985                 }
986                 print $header, "\n";
987                 if ($smtp) {
988                         print "Result: ", $smtp->code, ' ',
989                                 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
990                 } else {
991                         print "Result: OK\n";
992                 }
993         }
995         return 1;
998 $reply_to = $initial_reply_to;
999 $references = $initial_reply_to || '';
1000 $subject = $initial_subject;
1001 $message_num = 0;
1003 foreach my $t (@files) {
1004         open(F,"<",$t) or die "can't open file $t";
1006         my $author = undef;
1007         my $author_encoding;
1008         my $has_content_type;
1009         my $body_encoding;
1010         @cc = ();
1011         @xh = ();
1012         my $input_format = undef;
1013         my @header = ();
1014         $message = "";
1015         $message_num++;
1016         # First unfold multiline header fields
1017         while(<F>) {
1018                 last if /^\s*$/;
1019                 if (/^\s+\S/ and @header) {
1020                         chomp($header[$#header]);
1021                         s/^\s+/ /;
1022                         $header[$#header] .= $_;
1023             } else {
1024                         push(@header, $_);
1025                 }
1026         }
1027         # Now parse the header
1028         foreach(@header) {
1029                 if (/^From /) {
1030                         $input_format = 'mbox';
1031                         next;
1032                 }
1033                 chomp;
1034                 if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1035                         $input_format = 'mbox';
1036                 }
1038                 if (defined $input_format && $input_format eq 'mbox') {
1039                         if (/^Subject:\s+(.*)$/) {
1040                                 $subject = $1;
1041                         }
1042                         elsif (/^From:\s+(.*)$/) {
1043                                 ($author, $author_encoding) = unquote_rfc2047($1);
1044                                 next if $suppress_cc{'author'};
1045                                 next if $suppress_cc{'self'} and $author eq $sender;
1046                                 printf("(mbox) Adding cc: %s from line '%s'\n",
1047                                         $1, $_) unless $quiet;
1048                                 push @cc, $1;
1049                         }
1050                         elsif (/^Cc:\s+(.*)$/) {
1051                                 foreach my $addr (parse_address_line($1)) {
1052                                         if (unquote_rfc2047($addr) eq $sender) {
1053                                                 next if ($suppress_cc{'self'});
1054                                         } else {
1055                                                 next if ($suppress_cc{'cc'});
1056                                         }
1057                                         printf("(mbox) Adding cc: %s from line '%s'\n",
1058                                                 $addr, $_) unless $quiet;
1059                                         push @cc, $addr;
1060                                 }
1061                         }
1062                         elsif (/^Content-type:/i) {
1063                                 $has_content_type = 1;
1064                                 if (/charset="?([^ "]+)/) {
1065                                         $body_encoding = $1;
1066                                 }
1067                                 push @xh, $_;
1068                         }
1069                         elsif (/^Message-Id: (.*)/i) {
1070                                 $message_id = $1;
1071                         }
1072                         elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1073                                 push @xh, $_;
1074                         }
1076                 } else {
1077                         # In the traditional
1078                         # "send lots of email" format,
1079                         # line 1 = cc
1080                         # line 2 = subject
1081                         # So let's support that, too.
1082                         $input_format = 'lots';
1083                         if (@cc == 0 && !$suppress_cc{'cc'}) {
1084                                 printf("(non-mbox) Adding cc: %s from line '%s'\n",
1085                                         $_, $_) unless $quiet;
1086                                 push @cc, $_;
1087                         } elsif (!defined $subject) {
1088                                 $subject = $_;
1089                         }
1090                 }
1091         }
1092         # Now parse the message body
1093         while(<F>) {
1094                 $message .=  $_;
1095                 if (/^(Signed-off-by|Cc): (.*)$/i) {
1096                         chomp;
1097                         my ($what, $c) = ($1, $2);
1098                         chomp $c;
1099                         if ($c eq $sender) {
1100                                 next if ($suppress_cc{'self'});
1101                         } else {
1102                                 next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1103                                 next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1104                         }
1105                         push @cc, $c;
1106                         printf("(body) Adding cc: %s from line '%s'\n",
1107                                 $c, $_) unless $quiet;
1108                 }
1109         }
1110         close F;
1112         if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
1113                 open(F, "$cc_cmd \Q$t\E |")
1114                         or die "(cc-cmd) Could not execute '$cc_cmd'";
1115                 while(<F>) {
1116                         my $c = $_;
1117                         $c =~ s/^\s*//g;
1118                         $c =~ s/\n$//g;
1119                         next if ($c eq $sender and $suppress_from);
1120                         push @cc, $c;
1121                         printf("(cc-cmd) Adding cc: %s from: '%s'\n",
1122                                 $c, $cc_cmd) unless $quiet;
1123                 }
1124                 close F
1125                         or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
1126         }
1128         if (defined $author and $author ne $sender) {
1129                 $message = "From: $author\n\n$message";
1130                 if (defined $author_encoding) {
1131                         if ($has_content_type) {
1132                                 if ($body_encoding eq $author_encoding) {
1133                                         # ok, we already have the right encoding
1134                                 }
1135                                 else {
1136                                         # uh oh, we should re-encode
1137                                 }
1138                         }
1139                         else {
1140                                 push @xh,
1141                                   'MIME-Version: 1.0',
1142                                   "Content-Type: text/plain; charset=$author_encoding",
1143                                   'Content-Transfer-Encoding: 8bit';
1144                         }
1145                 }
1146         }
1148         $needs_confirm = (
1149                 $confirm eq "always" or
1150                 ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1151                 ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1152         $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1154         @cc = (@initial_cc, @cc);
1156         my $message_was_sent = send_message();
1158         # set up for the next message
1159         if ($thread && $message_was_sent &&
1160                 ($chain_reply_to || !defined $reply_to || length($reply_to) == 0)) {
1161                 $reply_to = $message_id;
1162                 if (length $references > 0) {
1163                         $references .= "\n $message_id";
1164                 } else {
1165                         $references = "$message_id";
1166                 }
1167         }
1168         $message_id = undef;
1171 cleanup_compose_files();
1173 sub cleanup_compose_files() {
1174         unlink($compose_filename, $compose_filename . ".final") if $compose;
1177 $smtp->quit if $smtp;
1179 sub unique_email_list(@) {
1180         my %seen;
1181         my @emails;
1183         foreach my $entry (@_) {
1184                 if (my $clean = extract_valid_address($entry)) {
1185                         $seen{$clean} ||= 0;
1186                         next if $seen{$clean}++;
1187                         push @emails, $entry;
1188                 } else {
1189                         print STDERR "W: unable to extract a valid address",
1190                                         " from: $entry\n";
1191                 }
1192         }
1193         return @emails;
1196 sub validate_patch {
1197         my $fn = shift;
1198         open(my $fh, '<', $fn)
1199                 or die "unable to open $fn: $!\n";
1200         while (my $line = <$fh>) {
1201                 if (length($line) > 998) {
1202                         return "$.: patch contains a line longer than 998 characters";
1203                 }
1204         }
1205         return undef;
1208 sub file_has_nonascii {
1209         my $fn = shift;
1210         open(my $fh, '<', $fn)
1211                 or die "unable to open $fn: $!\n";
1212         while (my $line = <$fh>) {
1213                 return 1 if $line =~ /[^[:ascii:]]/;
1214         }
1215         return 0;