Code

send-email: lazily assign editor variable
[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;
167 sub do_edit {
168         if (!defined($editor)) {
169                 $editor = Git::command_oneline('var', 'GIT_EDITOR');
170         }
171         if (defined($multiedit) && !$multiedit) {
172                 map {
173                         system('sh', '-c', $editor.' "$@"', $editor, $_);
174                         if (($? & 127) || ($? >> 8)) {
175                                 die("the editor exited uncleanly, aborting everything");
176                         }
177                 } @_;
178         } else {
179                 system('sh', '-c', $editor.' "$@"', $editor, @_);
180                 if (($? & 127) || ($? >> 8)) {
181                         die("the editor exited uncleanly, aborting everything");
182                 }
183         }
186 # Variables with corresponding config settings
187 my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc, $cc_cmd);
188 my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
189 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
190 my ($validate, $confirm);
191 my (@suppress_cc);
193 my %config_bool_settings = (
194     "thread" => [\$thread, 1],
195     "chainreplyto" => [\$chain_reply_to, 1],
196     "suppressfrom" => [\$suppress_from, undef],
197     "signedoffbycc" => [\$signed_off_by_cc, undef],
198     "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
199     "validate" => [\$validate, 1],
200 );
202 my %config_settings = (
203     "smtpserver" => \$smtp_server,
204     "smtpserverport" => \$smtp_server_port,
205     "smtpuser" => \$smtp_authuser,
206     "smtppass" => \$smtp_authpass,
207     "to" => \@to,
208     "cc" => \@initial_cc,
209     "cccmd" => \$cc_cmd,
210     "aliasfiletype" => \$aliasfiletype,
211     "bcc" => \@bcclist,
212     "aliasesfile" => \@alias_files,
213     "suppresscc" => \@suppress_cc,
214     "envelopesender" => \$envelope_sender,
215     "multiedit" => \$multiedit,
216     "confirm"   => \$confirm,
217     "from" => \$sender,
218 );
220 # Handle Uncouth Termination
221 sub signal_handler {
223         # Make text normal
224         print color("reset"), "\n";
226         # SMTP password masked
227         system "stty echo";
229         # tmp files from --compose
230         if (defined $compose_filename) {
231                 if (-e $compose_filename) {
232                         print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
233                 }
234                 if (-e ($compose_filename . ".final")) {
235                         print "'$compose_filename.final' contains the composed email.\n"
236                 }
237         }
239         exit;
240 };
242 $SIG{TERM} = \&signal_handler;
243 $SIG{INT}  = \&signal_handler;
245 # Begin by accumulating all the variables (defined above), that we will end up
246 # needing, first, from the command line:
248 my $rc = GetOptions("sender|from=s" => \$sender,
249                     "in-reply-to=s" => \$initial_reply_to,
250                     "subject=s" => \$initial_subject,
251                     "to=s" => \@to,
252                     "cc=s" => \@initial_cc,
253                     "bcc=s" => \@bcclist,
254                     "chain-reply-to!" => \$chain_reply_to,
255                     "smtp-server=s" => \$smtp_server,
256                     "smtp-server-port=s" => \$smtp_server_port,
257                     "smtp-user=s" => \$smtp_authuser,
258                     "smtp-pass:s" => \$smtp_authpass,
259                     "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
260                     "smtp-encryption=s" => \$smtp_encryption,
261                     "identity=s" => \$identity,
262                     "annotate" => \$annotate,
263                     "compose" => \$compose,
264                     "quiet" => \$quiet,
265                     "cc-cmd=s" => \$cc_cmd,
266                     "suppress-from!" => \$suppress_from,
267                     "suppress-cc=s" => \@suppress_cc,
268                     "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
269                     "confirm=s" => \$confirm,
270                     "dry-run" => \$dry_run,
271                     "envelope-sender=s" => \$envelope_sender,
272                     "thread!" => \$thread,
273                     "validate!" => \$validate,
274                     "format-patch!" => \$format_patch,
275          );
277 unless ($rc) {
278     usage();
281 die "Cannot run git format-patch from outside a repository\n"
282         if $format_patch and not $repo;
284 # Now, let's fill any that aren't set in with defaults:
286 sub read_config {
287         my ($prefix) = @_;
289         foreach my $setting (keys %config_bool_settings) {
290                 my $target = $config_bool_settings{$setting}->[0];
291                 $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
292         }
294         foreach my $setting (keys %config_settings) {
295                 my $target = $config_settings{$setting};
296                 if (ref($target) eq "ARRAY") {
297                         unless (@$target) {
298                                 my @values = Git::config(@repo, "$prefix.$setting");
299                                 @$target = @values if (@values && defined $values[0]);
300                         }
301                 }
302                 else {
303                         $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
304                 }
305         }
307         if (!defined $smtp_encryption) {
308                 my $enc = Git::config(@repo, "$prefix.smtpencryption");
309                 if (defined $enc) {
310                         $smtp_encryption = $enc;
311                 } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
312                         $smtp_encryption = 'ssl';
313                 }
314         }
317 # read configuration from [sendemail "$identity"], fall back on [sendemail]
318 $identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
319 read_config("sendemail.$identity") if (defined $identity);
320 read_config("sendemail");
322 # fall back on builtin bool defaults
323 foreach my $setting (values %config_bool_settings) {
324         ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
327 # 'default' encryption is none -- this only prevents a warning
328 $smtp_encryption = '' unless (defined $smtp_encryption);
330 # Set CC suppressions
331 my(%suppress_cc);
332 if (@suppress_cc) {
333         foreach my $entry (@suppress_cc) {
334                 die "Unknown --suppress-cc field: '$entry'\n"
335                         unless $entry =~ /^(all|cccmd|cc|author|self|sob|body|bodycc)$/;
336                 $suppress_cc{$entry} = 1;
337         }
340 if ($suppress_cc{'all'}) {
341         foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
342                 $suppress_cc{$entry} = 1;
343         }
344         delete $suppress_cc{'all'};
347 # If explicit old-style ones are specified, they trump --suppress-cc.
348 $suppress_cc{'self'} = $suppress_from if defined $suppress_from;
349 $suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
351 if ($suppress_cc{'body'}) {
352         foreach my $entry (qw (sob bodycc)) {
353                 $suppress_cc{$entry} = 1;
354         }
355         delete $suppress_cc{'body'};
358 # Set confirm's default value
359 my $confirm_unconfigured = !defined $confirm;
360 if ($confirm_unconfigured) {
361         $confirm = scalar %suppress_cc ? 'compose' : 'auto';
362 };
363 die "Unknown --confirm setting: '$confirm'\n"
364         unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
366 # Debugging, print out the suppressions.
367 if (0) {
368         print "suppressions:\n";
369         foreach my $entry (keys %suppress_cc) {
370                 printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
371         }
374 my ($repoauthor, $repocommitter);
375 ($repoauthor) = Git::ident_person(@repo, 'author');
376 ($repocommitter) = Git::ident_person(@repo, 'committer');
378 # Verify the user input
380 foreach my $entry (@to) {
381         die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
384 foreach my $entry (@initial_cc) {
385         die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
388 foreach my $entry (@bcclist) {
389         die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
392 sub parse_address_line {
393         if ($have_mail_address) {
394                 return map { $_->format } Mail::Address->parse($_[0]);
395         } else {
396                 return split_addrs($_[0]);
397         }
400 sub split_addrs {
401         return quotewords('\s*,\s*', 1, @_);
404 my %aliases;
405 my %parse_alias = (
406         # multiline formats can be supported in the future
407         mutt => sub { my $fh = shift; while (<$fh>) {
408                 if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
409                         my ($alias, $addr) = ($1, $2);
410                         $addr =~ s/#.*$//; # mutt allows # comments
411                          # commas delimit multiple addresses
412                         $aliases{$alias} = [ split_addrs($addr) ];
413                 }}},
414         mailrc => sub { my $fh = shift; while (<$fh>) {
415                 if (/^alias\s+(\S+)\s+(.*)$/) {
416                         # spaces delimit multiple addresses
417                         $aliases{$1} = [ quotewords('\s+', 0, $2) ];
418                 }}},
419         pine => sub { my $fh = shift; my $f='\t[^\t]*';
420                 for (my $x = ''; defined($x); $x = $_) {
421                         chomp $x;
422                         $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
423                         $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
424                         $aliases{$1} = [ split_addrs($2) ];
425                 }},
426         elm => sub  { my $fh = shift;
427                       while (<$fh>) {
428                           if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
429                               my ($alias, $addr) = ($1, $2);
430                                $aliases{$alias} = [ split_addrs($addr) ];
431                           }
432                       } },
434         gnus => sub { my $fh = shift; while (<$fh>) {
435                 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
436                         $aliases{$1} = [ $2 ];
437                 }}}
438 );
440 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
441         foreach my $file (@alias_files) {
442                 open my $fh, '<', $file or die "opening $file: $!\n";
443                 $parse_alias{$aliasfiletype}->($fh);
444                 close $fh;
445         }
448 ($sender) = expand_aliases($sender) if defined $sender;
450 # returns 1 if the conflict must be solved using it as a format-patch argument
451 sub check_file_rev_conflict($) {
452         return unless $repo;
453         my $f = shift;
454         try {
455                 $repo->command('rev-parse', '--verify', '--quiet', $f);
456                 if (defined($format_patch)) {
457                         return $format_patch;
458                 }
459                 die(<<EOF);
460 File '$f' exists but it could also be the range of commits
461 to produce patches for.  Please disambiguate by...
463     * Saying "./$f" if you mean a file; or
464     * Giving --format-patch option if you mean a range.
465 EOF
466         } catch Git::Error::Command with {
467                 return 0;
468         }
471 # Now that all the defaults are set, process the rest of the command line
472 # arguments and collect up the files that need to be processed.
473 my @rev_list_opts;
474 while (defined(my $f = shift @ARGV)) {
475         if ($f eq "--") {
476                 push @rev_list_opts, "--", @ARGV;
477                 @ARGV = ();
478         } elsif (-d $f and !check_file_rev_conflict($f)) {
479                 opendir(DH,$f)
480                         or die "Failed to opendir $f: $!";
482                 push @files, grep { -f $_ } map { +$f . "/" . $_ }
483                                 sort readdir(DH);
484                 closedir(DH);
485         } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
486                 push @files, $f;
487         } else {
488                 push @rev_list_opts, $f;
489         }
492 if (@rev_list_opts) {
493         die "Cannot run git format-patch from outside a repository\n"
494                 unless $repo;
495         push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
498 if ($validate) {
499         foreach my $f (@files) {
500                 unless (-p $f) {
501                         my $error = validate_patch($f);
502                         $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
503                 }
504         }
507 if (@files) {
508         unless ($quiet) {
509                 print $_,"\n" for (@files);
510         }
511 } else {
512         print STDERR "\nNo patch files specified!\n\n";
513         usage();
516 sub get_patch_subject($) {
517         my $fn = shift;
518         open (my $fh, '<', $fn);
519         while (my $line = <$fh>) {
520                 next unless ($line =~ /^Subject: (.*)$/);
521                 close $fh;
522                 return "GIT: $1\n";
523         }
524         close $fh;
525         die "No subject line in $fn ?";
528 if ($compose) {
529         # Note that this does not need to be secure, but we will make a small
530         # effort to have it be unique
531         $compose_filename = ($repo ?
532                 tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
533                 tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
534         open(C,">",$compose_filename)
535                 or die "Failed to open for writing $compose_filename: $!";
538         my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
539         my $tpl_subject = $initial_subject || '';
540         my $tpl_reply_to = $initial_reply_to || '';
542         print C <<EOT;
543 From $tpl_sender # This line is ignored.
544 GIT: Lines beginning in "GIT:" will be removed.
545 GIT: Consider including an overall diffstat or table of contents
546 GIT: for the patch you are writing.
547 GIT:
548 GIT: Clear the body content if you don't wish to send a summary.
549 From: $tpl_sender
550 Subject: $tpl_subject
551 In-Reply-To: $tpl_reply_to
553 EOT
554         for my $f (@files) {
555                 print C get_patch_subject($f);
556         }
557         close(C);
559         if ($annotate) {
560                 do_edit($compose_filename, @files);
561         } else {
562                 do_edit($compose_filename);
563         }
565         open(C2,">",$compose_filename . ".final")
566                 or die "Failed to open $compose_filename.final : " . $!;
568         open(C,"<",$compose_filename)
569                 or die "Failed to open $compose_filename : " . $!;
571         my $need_8bit_cte = file_has_nonascii($compose_filename);
572         my $in_body = 0;
573         my $summary_empty = 1;
574         while(<C>) {
575                 next if m/^GIT:/;
576                 if ($in_body) {
577                         $summary_empty = 0 unless (/^\n$/);
578                 } elsif (/^\n$/) {
579                         $in_body = 1;
580                         if ($need_8bit_cte) {
581                                 print C2 "MIME-Version: 1.0\n",
582                                          "Content-Type: text/plain; ",
583                                            "charset=UTF-8\n",
584                                          "Content-Transfer-Encoding: 8bit\n";
585                         }
586                 } elsif (/^MIME-Version:/i) {
587                         $need_8bit_cte = 0;
588                 } elsif (/^Subject:\s*(.+)\s*$/i) {
589                         $initial_subject = $1;
590                         my $subject = $initial_subject;
591                         $_ = "Subject: " .
592                                 ($subject =~ /[^[:ascii:]]/ ?
593                                  quote_rfc2047($subject) :
594                                  $subject) .
595                                 "\n";
596                 } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
597                         $initial_reply_to = $1;
598                         next;
599                 } elsif (/^From:\s*(.+)\s*$/i) {
600                         $sender = $1;
601                         next;
602                 } elsif (/^(?:To|Cc|Bcc):/i) {
603                         print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
604                         next;
605                 }
606                 print C2 $_;
607         }
608         close(C);
609         close(C2);
611         if ($summary_empty) {
612                 print "Summary email is empty, skipping it\n";
613                 $compose = -1;
614         }
615 } elsif ($annotate) {
616         do_edit(@files);
619 sub ask {
620         my ($prompt, %arg) = @_;
621         my $valid_re = $arg{valid_re};
622         my $default = $arg{default};
623         my $resp;
624         my $i = 0;
625         return defined $default ? $default : undef
626                 unless defined $term->IN and defined fileno($term->IN) and
627                        defined $term->OUT and defined fileno($term->OUT);
628         while ($i++ < 10) {
629                 $resp = $term->readline($prompt);
630                 if (!defined $resp) { # EOF
631                         print "\n";
632                         return defined $default ? $default : undef;
633                 }
634                 if ($resp eq '' and defined $default) {
635                         return $default;
636                 }
637                 if (!defined $valid_re or $resp =~ /$valid_re/) {
638                         return $resp;
639                 }
640         }
641         return undef;
644 my $prompting = 0;
645 if (!defined $sender) {
646         $sender = $repoauthor || $repocommitter || '';
647         $sender = ask("Who should the emails appear to be from? [$sender] ",
648                       default => $sender);
649         print "Emails will be sent from: ", $sender, "\n";
650         $prompting++;
653 if (!@to) {
654         my $to = ask("Who should the emails be sent to? ");
655         push @to, parse_address_line($to) if defined $to; # sanitized/validated later
656         $prompting++;
659 sub expand_aliases {
660         return map { expand_one_alias($_) } @_;
663 my %EXPANDED_ALIASES;
664 sub expand_one_alias {
665         my $alias = shift;
666         if ($EXPANDED_ALIASES{$alias}) {
667                 die "fatal: alias '$alias' expands to itself\n";
668         }
669         local $EXPANDED_ALIASES{$alias} = 1;
670         return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
673 @to = expand_aliases(@to);
674 @to = (map { sanitize_address($_) } @to);
675 @initial_cc = expand_aliases(@initial_cc);
676 @bcclist = expand_aliases(@bcclist);
678 if ($thread && !defined $initial_reply_to && $prompting) {
679         $initial_reply_to = ask(
680                 "Message-ID to be used as In-Reply-To for the first email? ");
682 if (defined $initial_reply_to) {
683         $initial_reply_to =~ s/^\s*<?//;
684         $initial_reply_to =~ s/>?\s*$//;
685         $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
688 if (!defined $smtp_server) {
689         foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
690                 if (-x $_) {
691                         $smtp_server = $_;
692                         last;
693                 }
694         }
695         $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
698 if ($compose && $compose > 0) {
699         @files = ($compose_filename . ".final", @files);
702 # Variables we set as part of the loop over files
703 our ($message_id, %mail, $subject, $reply_to, $references, $message,
704         $needs_confirm, $message_num, $ask_default);
706 sub extract_valid_address {
707         my $address = shift;
708         my $local_part_regexp = '[^<>"\s@]+';
709         my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
711         # check for a local address:
712         return $address if ($address =~ /^($local_part_regexp)$/);
714         $address =~ s/^\s*<(.*)>\s*$/$1/;
715         if ($have_email_valid) {
716                 return scalar Email::Valid->address($address);
717         } else {
718                 # less robust/correct than the monster regexp in Email::Valid,
719                 # but still does a 99% job, and one less dependency
720                 $address =~ /($local_part_regexp\@$domain_regexp)/;
721                 return $1;
722         }
725 # Usually don't need to change anything below here.
727 # we make a "fake" message id by taking the current number
728 # of seconds since the beginning of Unix time and tacking on
729 # a random number to the end, in case we are called quicker than
730 # 1 second since the last time we were called.
732 # We'll setup a template for the message id, using the "from" address:
734 my ($message_id_stamp, $message_id_serial);
735 sub make_message_id
737         my $uniq;
738         if (!defined $message_id_stamp) {
739                 $message_id_stamp = sprintf("%s-%s", time, $$);
740                 $message_id_serial = 0;
741         }
742         $message_id_serial++;
743         $uniq = "$message_id_stamp-$message_id_serial";
745         my $du_part;
746         for ($sender, $repocommitter, $repoauthor) {
747                 $du_part = extract_valid_address(sanitize_address($_));
748                 last if (defined $du_part and $du_part ne '');
749         }
750         if (not defined $du_part or $du_part eq '') {
751                 use Sys::Hostname qw();
752                 $du_part = 'user@' . Sys::Hostname::hostname();
753         }
754         my $message_id_template = "<%s-git-send-email-%s>";
755         $message_id = sprintf($message_id_template, $uniq, $du_part);
756         #print "new message id = $message_id\n"; # Was useful for debugging
761 $time = time - scalar $#files;
763 sub unquote_rfc2047 {
764         local ($_) = @_;
765         my $encoding;
766         if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
767                 $encoding = $1;
768                 s/_/ /g;
769                 s/=([0-9A-F]{2})/chr(hex($1))/eg;
770         }
771         return wantarray ? ($_, $encoding) : $_;
774 sub quote_rfc2047 {
775         local $_ = shift;
776         my $encoding = shift || 'UTF-8';
777         s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
778         s/(.*)/=\?$encoding\?q\?$1\?=/;
779         return $_;
782 sub is_rfc2047_quoted {
783         my $s = shift;
784         my $token = '[^][()<>@,;:"\/?.= \000-\037\177-\377]+';
785         my $encoded_text = '[!->@-~]+';
786         length($s) <= 75 &&
787         $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
790 # use the simplest quoting being able to handle the recipient
791 sub sanitize_address
793         my ($recipient) = @_;
794         my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
796         if (not $recipient_name) {
797                 return "$recipient";
798         }
800         # if recipient_name is already quoted, do nothing
801         if (is_rfc2047_quoted($recipient_name)) {
802                 return $recipient;
803         }
805         # rfc2047 is needed if a non-ascii char is included
806         if ($recipient_name =~ /[^[:ascii:]]/) {
807                 $recipient_name =~ s/^"(.*)"$/$1/;
808                 $recipient_name = quote_rfc2047($recipient_name);
809         }
811         # double quotes are needed if specials or CTLs are included
812         elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
813                 $recipient_name =~ s/(["\\\r])/\\$1/g;
814                 $recipient_name = "\"$recipient_name\"";
815         }
817         return "$recipient_name $recipient_addr";
821 # Returns 1 if the message was sent, and 0 otherwise.
822 # In actuality, the whole program dies when there
823 # is an error sending a message.
825 sub send_message
827         my @recipients = unique_email_list(@to);
828         @cc = (grep { my $cc = extract_valid_address($_);
829                       not grep { $cc eq $_ } @recipients
830                     }
831                map { sanitize_address($_) }
832                @cc);
833         my $to = join (",\n\t", @recipients);
834         @recipients = unique_email_list(@recipients,@cc,@bcclist);
835         @recipients = (map { extract_valid_address($_) } @recipients);
836         my $date = format_2822_time($time++);
837         my $gitversion = '@@GIT_VERSION@@';
838         if ($gitversion =~ m/..GIT_VERSION../) {
839             $gitversion = Git::version();
840         }
842         my $cc = join(",\n\t", unique_email_list(@cc));
843         my $ccline = "";
844         if ($cc ne '') {
845                 $ccline = "\nCc: $cc";
846         }
847         my $sanitized_sender = sanitize_address($sender);
848         make_message_id() unless defined($message_id);
850         my $header = "From: $sanitized_sender
851 To: $to${ccline}
852 Subject: $subject
853 Date: $date
854 Message-Id: $message_id
855 X-Mailer: git-send-email $gitversion
856 ";
857         if ($reply_to) {
859                 $header .= "In-Reply-To: $reply_to\n";
860                 $header .= "References: $references\n";
861         }
862         if (@xh) {
863                 $header .= join("\n", @xh) . "\n";
864         }
866         my @sendmail_parameters = ('-i', @recipients);
867         my $raw_from = $sanitized_sender;
868         $raw_from = $envelope_sender if (defined $envelope_sender);
869         $raw_from = extract_valid_address($raw_from);
870         unshift (@sendmail_parameters,
871                         '-f', $raw_from) if(defined $envelope_sender);
873         if ($needs_confirm && !$dry_run) {
874                 print "\n$header\n";
875                 if ($needs_confirm eq "inform") {
876                         $confirm_unconfigured = 0; # squelch this message for the rest of this run
877                         $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
878                         print "    The Cc list above has been expanded by additional\n";
879                         print "    addresses found in the patch commit message. By default\n";
880                         print "    send-email prompts before sending whenever this occurs.\n";
881                         print "    This behavior is controlled by the sendemail.confirm\n";
882                         print "    configuration setting.\n";
883                         print "\n";
884                         print "    For additional information, run 'git send-email --help'.\n";
885                         print "    To retain the current behavior, but squelch this message,\n";
886                         print "    run 'git config --global sendemail.confirm auto'.\n\n";
887                 }
888                 $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
889                          valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
890                          default => $ask_default);
891                 die "Send this email reply required" unless defined $_;
892                 if (/^n/i) {
893                         return 0;
894                 } elsif (/^q/i) {
895                         cleanup_compose_files();
896                         exit(0);
897                 } elsif (/^a/i) {
898                         $confirm = 'never';
899                 }
900         }
902         if ($dry_run) {
903                 # We don't want to send the email.
904         } elsif ($smtp_server =~ m#^/#) {
905                 my $pid = open my $sm, '|-';
906                 defined $pid or die $!;
907                 if (!$pid) {
908                         exec($smtp_server, @sendmail_parameters) or die $!;
909                 }
910                 print $sm "$header\n$message";
911                 close $sm or die $?;
912         } else {
914                 if (!defined $smtp_server) {
915                         die "The required SMTP server is not properly defined."
916                 }
918                 if ($smtp_encryption eq 'ssl') {
919                         $smtp_server_port ||= 465; # ssmtp
920                         require Net::SMTP::SSL;
921                         $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
922                 }
923                 else {
924                         require Net::SMTP;
925                         $smtp ||= Net::SMTP->new((defined $smtp_server_port)
926                                                  ? "$smtp_server:$smtp_server_port"
927                                                  : $smtp_server);
928                         if ($smtp_encryption eq 'tls' && $smtp) {
929                                 require Net::SMTP::SSL;
930                                 $smtp->command('STARTTLS');
931                                 $smtp->response();
932                                 if ($smtp->code == 220) {
933                                         $smtp = Net::SMTP::SSL->start_SSL($smtp)
934                                                 or die "STARTTLS failed! ".$smtp->message;
935                                         $smtp_encryption = '';
936                                         # Send EHLO again to receive fresh
937                                         # supported commands
938                                         $smtp->hello();
939                                 } else {
940                                         die "Server does not support STARTTLS! ".$smtp->message;
941                                 }
942                         }
943                 }
945                 if (!$smtp) {
946                         die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
947                 }
949                 if (defined $smtp_authuser) {
951                         if (!defined $smtp_authpass) {
953                                 system "stty -echo";
955                                 do {
956                                         print "Password: ";
957                                         $_ = <STDIN>;
958                                         print "\n";
959                                 } while (!defined $_);
961                                 chomp($smtp_authpass = $_);
963                                 system "stty echo";
964                         }
966                         $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
967                 }
969                 $smtp->mail( $raw_from ) or die $smtp->message;
970                 $smtp->to( @recipients ) or die $smtp->message;
971                 $smtp->data or die $smtp->message;
972                 $smtp->datasend("$header\n$message") or die $smtp->message;
973                 $smtp->dataend() or die $smtp->message;
974                 $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
975         }
976         if ($quiet) {
977                 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
978         } else {
979                 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
980                 if ($smtp_server !~ m#^/#) {
981                         print "Server: $smtp_server\n";
982                         print "MAIL FROM:<$raw_from>\n";
983                         foreach my $entry (@recipients) {
984                             print "RCPT TO:<$entry>\n";
985                         }
986                 } else {
987                         print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
988                 }
989                 print $header, "\n";
990                 if ($smtp) {
991                         print "Result: ", $smtp->code, ' ',
992                                 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
993                 } else {
994                         print "Result: OK\n";
995                 }
996         }
998         return 1;
1001 $reply_to = $initial_reply_to;
1002 $references = $initial_reply_to || '';
1003 $subject = $initial_subject;
1004 $message_num = 0;
1006 foreach my $t (@files) {
1007         open(F,"<",$t) or die "can't open file $t";
1009         my $author = undef;
1010         my $author_encoding;
1011         my $has_content_type;
1012         my $body_encoding;
1013         @cc = ();
1014         @xh = ();
1015         my $input_format = undef;
1016         my @header = ();
1017         $message = "";
1018         $message_num++;
1019         # First unfold multiline header fields
1020         while(<F>) {
1021                 last if /^\s*$/;
1022                 if (/^\s+\S/ and @header) {
1023                         chomp($header[$#header]);
1024                         s/^\s+/ /;
1025                         $header[$#header] .= $_;
1026             } else {
1027                         push(@header, $_);
1028                 }
1029         }
1030         # Now parse the header
1031         foreach(@header) {
1032                 if (/^From /) {
1033                         $input_format = 'mbox';
1034                         next;
1035                 }
1036                 chomp;
1037                 if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1038                         $input_format = 'mbox';
1039                 }
1041                 if (defined $input_format && $input_format eq 'mbox') {
1042                         if (/^Subject:\s+(.*)$/) {
1043                                 $subject = $1;
1044                         }
1045                         elsif (/^From:\s+(.*)$/) {
1046                                 ($author, $author_encoding) = unquote_rfc2047($1);
1047                                 next if $suppress_cc{'author'};
1048                                 next if $suppress_cc{'self'} and $author eq $sender;
1049                                 printf("(mbox) Adding cc: %s from line '%s'\n",
1050                                         $1, $_) unless $quiet;
1051                                 push @cc, $1;
1052                         }
1053                         elsif (/^Cc:\s+(.*)$/) {
1054                                 foreach my $addr (parse_address_line($1)) {
1055                                         if (unquote_rfc2047($addr) eq $sender) {
1056                                                 next if ($suppress_cc{'self'});
1057                                         } else {
1058                                                 next if ($suppress_cc{'cc'});
1059                                         }
1060                                         printf("(mbox) Adding cc: %s from line '%s'\n",
1061                                                 $addr, $_) unless $quiet;
1062                                         push @cc, $addr;
1063                                 }
1064                         }
1065                         elsif (/^Content-type:/i) {
1066                                 $has_content_type = 1;
1067                                 if (/charset="?([^ "]+)/) {
1068                                         $body_encoding = $1;
1069                                 }
1070                                 push @xh, $_;
1071                         }
1072                         elsif (/^Message-Id: (.*)/i) {
1073                                 $message_id = $1;
1074                         }
1075                         elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1076                                 push @xh, $_;
1077                         }
1079                 } else {
1080                         # In the traditional
1081                         # "send lots of email" format,
1082                         # line 1 = cc
1083                         # line 2 = subject
1084                         # So let's support that, too.
1085                         $input_format = 'lots';
1086                         if (@cc == 0 && !$suppress_cc{'cc'}) {
1087                                 printf("(non-mbox) Adding cc: %s from line '%s'\n",
1088                                         $_, $_) unless $quiet;
1089                                 push @cc, $_;
1090                         } elsif (!defined $subject) {
1091                                 $subject = $_;
1092                         }
1093                 }
1094         }
1095         # Now parse the message body
1096         while(<F>) {
1097                 $message .=  $_;
1098                 if (/^(Signed-off-by|Cc): (.*)$/i) {
1099                         chomp;
1100                         my ($what, $c) = ($1, $2);
1101                         chomp $c;
1102                         if ($c eq $sender) {
1103                                 next if ($suppress_cc{'self'});
1104                         } else {
1105                                 next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1106                                 next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1107                         }
1108                         push @cc, $c;
1109                         printf("(body) Adding cc: %s from line '%s'\n",
1110                                 $c, $_) unless $quiet;
1111                 }
1112         }
1113         close F;
1115         if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
1116                 open(F, "$cc_cmd \Q$t\E |")
1117                         or die "(cc-cmd) Could not execute '$cc_cmd'";
1118                 while(<F>) {
1119                         my $c = $_;
1120                         $c =~ s/^\s*//g;
1121                         $c =~ s/\n$//g;
1122                         next if ($c eq $sender and $suppress_from);
1123                         push @cc, $c;
1124                         printf("(cc-cmd) Adding cc: %s from: '%s'\n",
1125                                 $c, $cc_cmd) unless $quiet;
1126                 }
1127                 close F
1128                         or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
1129         }
1131         if (defined $author and $author ne $sender) {
1132                 $message = "From: $author\n\n$message";
1133                 if (defined $author_encoding) {
1134                         if ($has_content_type) {
1135                                 if ($body_encoding eq $author_encoding) {
1136                                         # ok, we already have the right encoding
1137                                 }
1138                                 else {
1139                                         # uh oh, we should re-encode
1140                                 }
1141                         }
1142                         else {
1143                                 push @xh,
1144                                   'MIME-Version: 1.0',
1145                                   "Content-Type: text/plain; charset=$author_encoding",
1146                                   'Content-Transfer-Encoding: 8bit';
1147                         }
1148                 }
1149         }
1151         $needs_confirm = (
1152                 $confirm eq "always" or
1153                 ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1154                 ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1155         $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1157         @cc = (@initial_cc, @cc);
1159         my $message_was_sent = send_message();
1161         # set up for the next message
1162         if ($thread && $message_was_sent &&
1163                 ($chain_reply_to || !defined $reply_to || length($reply_to) == 0)) {
1164                 $reply_to = $message_id;
1165                 if (length $references > 0) {
1166                         $references .= "\n $message_id";
1167                 } else {
1168                         $references = "$message_id";
1169                 }
1170         }
1171         $message_id = undef;
1174 cleanup_compose_files();
1176 sub cleanup_compose_files() {
1177         unlink($compose_filename, $compose_filename . ".final") if $compose;
1180 $smtp->quit if $smtp;
1182 sub unique_email_list(@) {
1183         my %seen;
1184         my @emails;
1186         foreach my $entry (@_) {
1187                 if (my $clean = extract_valid_address($entry)) {
1188                         $seen{$clean} ||= 0;
1189                         next if $seen{$clean}++;
1190                         push @emails, $entry;
1191                 } else {
1192                         print STDERR "W: unable to extract a valid address",
1193                                         " from: $entry\n";
1194                 }
1195         }
1196         return @emails;
1199 sub validate_patch {
1200         my $fn = shift;
1201         open(my $fh, '<', $fn)
1202                 or die "unable to open $fn: $!\n";
1203         while (my $line = <$fh>) {
1204                 if (length($line) > 998) {
1205                         return "$.: patch contains a line longer than 998 characters";
1206                 }
1207         }
1208         return undef;
1211 sub file_has_nonascii {
1212         my $fn = shift;
1213         open(my $fh, '<', $fn)
1214                 or die "unable to open $fn: $!\n";
1215         while (my $line = <$fh>) {
1216                 return 1 if $line =~ /[^[:ascii:]]/;
1217         }
1218         return 0;