git-send-email.perlon commit Rework pretty_print_commit to use strbufs instead of custom buffers. (674d172)
   1#!/usr/bin/perl -w
   2#
   3# Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
   4# Copyright 2005 Ryan Anderson <ryan@michonline.com>
   5#
   6# GPL v2 (See COPYING)
   7#
   8# Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
   9#
  10# Sends a collection of emails to the given email addresses, disturbingly fast.
  11#
  12# Supports two formats:
  13# 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches)
  14# 2. The original format support by Greg's script:
  15#    first line of the message is who to CC,
  16#    and second line is the subject of the message.
  17#
  18
  19use strict;
  20use warnings;
  21use Term::ReadLine;
  22use Getopt::Long;
  23use Data::Dumper;
  24use Term::ANSIColor;
  25use Git;
  26
  27$SIG{INT} = sub { print color("reset"), "\n"; exit };
  28
  29package FakeTerm;
  30sub new {
  31        my ($class, $reason) = @_;
  32        return bless \$reason, shift;
  33}
  34sub readline {
  35        my $self = shift;
  36        die "Cannot use readline on FakeTerm: $$self";
  37}
  38package main;
  39
  40
  41sub usage {
  42        print <<EOT;
  43git-send-email [options] <file | directory>...
  44Options:
  45   --from         Specify the "From:" line of the email to be sent.
  46
  47   --to           Specify the primary "To:" line of the email.
  48
  49   --cc           Specify an initial "Cc:" list for the entire series
  50                  of emails.
  51
  52   --cc-cmd       Specify a command to execute per file which adds
  53                  per file specific cc address entries
  54
  55   --bcc          Specify a list of email addresses that should be Bcc:
  56                  on all the emails.
  57
  58   --compose      Use \$GIT_EDITOR, core.editor, \$EDITOR, or \$VISUAL to edit
  59                  an introductory message for the patch series.
  60
  61   --subject      Specify the initial "Subject:" line.
  62                  Only necessary if --compose is also set.  If --compose
  63                  is not set, this will be prompted for.
  64
  65   --in-reply-to  Specify the first "In-Reply-To:" header line.
  66                  Only used if --compose is also set.  If --compose is not
  67                  set, this will be prompted for.
  68
  69   --chain-reply-to If set, the replies will all be to the previous
  70                  email sent, rather than to the first email sent.
  71                  Defaults to on.
  72
  73   --signed-off-cc Automatically add email addresses that appear in
  74                 Signed-off-by: or Cc: lines to the cc: list. Defaults to on.
  75
  76   --identity     The configuration identity, a subsection to prioritise over
  77                  the default section.
  78
  79   --smtp-server  If set, specifies the outgoing SMTP server to use.
  80                  Defaults to localhost.
  81
  82   --smtp-user    The username for SMTP-AUTH.
  83
  84   --smtp-pass    The password for SMTP-AUTH.
  85
  86   --smtp-ssl     If set, connects to the SMTP server using SSL.
  87
  88   --suppress-from Suppress sending emails to yourself if your address
  89                  appears in a From: line. Defaults to off.
  90
  91   --thread       Specify that the "In-Reply-To:" header should be set on all
  92                  emails. Defaults to on.
  93
  94   --quiet        Make git-send-email less verbose.  One line per email
  95                  should be all that is output.
  96
  97   --dry-run      Do everything except actually send the emails.
  98
  99   --envelope-sender    Specify the envelope sender used to send the emails.
 100
 101EOT
 102        exit(1);
 103}
 104
 105# most mail servers generate the Date: header, but not all...
 106sub format_2822_time {
 107        my ($time) = @_;
 108        my @localtm = localtime($time);
 109        my @gmttm = gmtime($time);
 110        my $localmin = $localtm[1] + $localtm[2] * 60;
 111        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 112        if ($localtm[0] != $gmttm[0]) {
 113                die "local zone differs from GMT by a non-minute interval\n";
 114        }
 115        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 116                $localmin += 1440;
 117        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 118                $localmin -= 1440;
 119        } elsif ($gmttm[6] != $localtm[6]) {
 120                die "local time offset greater than or equal to 24 hours\n";
 121        }
 122        my $offset = $localmin - $gmtmin;
 123        my $offhour = $offset / 60;
 124        my $offmin = abs($offset % 60);
 125        if (abs($offhour) >= 24) {
 126                die ("local time offset greater than or equal to 24 hours\n");
 127        }
 128
 129        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 130                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 131                       $localtm[3],
 132                       qw(Jan Feb Mar Apr May Jun
 133                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 134                       $localtm[5]+1900,
 135                       $localtm[2],
 136                       $localtm[1],
 137                       $localtm[0],
 138                       ($offset >= 0) ? '+' : '-',
 139                       abs($offhour),
 140                       $offmin,
 141                       );
 142}
 143
 144my $have_email_valid = eval { require Email::Valid; 1 };
 145my $smtp;
 146
 147sub unique_email_list(@);
 148sub cleanup_compose_files();
 149
 150# Constants (essentially)
 151my $compose_filename = ".msg.$$";
 152
 153# Variables we fill in automatically, or via prompting:
 154my (@to,@cc,@initial_cc,@bcclist,@xh,
 155        $initial_reply_to,$initial_subject,@files,$author,$sender,$compose,$time);
 156
 157my $envelope_sender;
 158
 159# Example reply to:
 160#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 161
 162my $repo = Git->repository();
 163my $term = eval {
 164        new Term::ReadLine 'git-send-email';
 165};
 166if ($@) {
 167        $term = new FakeTerm "$@: going non-interactive";
 168}
 169
 170# Behavior modification variables
 171my ($quiet, $dry_run) = (0, 0);
 172
 173# Variables with corresponding config settings
 174my ($thread, $chain_reply_to, $suppress_from, $signed_off_cc, $cc_cmd);
 175my ($smtp_server, $smtp_authuser, $smtp_authpass, $smtp_ssl);
 176my ($identity, $aliasfiletype, @alias_files);
 177
 178my %config_bool_settings = (
 179    "thread" => [\$thread, 1],
 180    "chainreplyto" => [\$chain_reply_to, 1],
 181    "suppressfrom" => [\$suppress_from, 0],
 182    "signedoffcc" => [\$signed_off_cc, 1],
 183    "smtpssl" => [\$smtp_ssl, 0],
 184);
 185
 186my %config_settings = (
 187    "smtpserver" => \$smtp_server,
 188    "smtpuser" => \$smtp_authuser,
 189    "smtppass" => \$smtp_authpass,
 190    "cccmd" => \$cc_cmd,
 191    "aliasfiletype" => \$aliasfiletype,
 192    "bcc" => \@bcclist,
 193    "aliasesfile" => \@alias_files,
 194);
 195
 196# Begin by accumulating all the variables (defined above), that we will end up
 197# needing, first, from the command line:
 198
 199my $rc = GetOptions("sender|from=s" => \$sender,
 200                    "in-reply-to=s" => \$initial_reply_to,
 201                    "subject=s" => \$initial_subject,
 202                    "to=s" => \@to,
 203                    "cc=s" => \@initial_cc,
 204                    "bcc=s" => \@bcclist,
 205                    "chain-reply-to!" => \$chain_reply_to,
 206                    "smtp-server=s" => \$smtp_server,
 207                    "smtp-user=s" => \$smtp_authuser,
 208                    "smtp-pass=s" => \$smtp_authpass,
 209                    "smtp-ssl!" => \$smtp_ssl,
 210                    "identity=s" => \$identity,
 211                    "compose" => \$compose,
 212                    "quiet" => \$quiet,
 213                    "cc-cmd=s" => \$cc_cmd,
 214                    "suppress-from!" => \$suppress_from,
 215                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_cc,
 216                    "dry-run" => \$dry_run,
 217                    "envelope-sender=s" => \$envelope_sender,
 218                    "thread!" => \$thread,
 219         );
 220
 221unless ($rc) {
 222    usage();
 223}
 224
 225# Now, let's fill any that aren't set in with defaults:
 226
 227sub read_config {
 228        my ($prefix) = @_;
 229
 230        foreach my $setting (keys %config_bool_settings) {
 231                my $target = $config_bool_settings{$setting}->[0];
 232                $$target = $repo->config_bool("$prefix.$setting") unless (defined $$target);
 233        }
 234
 235        foreach my $setting (keys %config_settings) {
 236                my $target = $config_settings{$setting};
 237                if (ref($target) eq "ARRAY") {
 238                        unless (@$target) {
 239                                my @values = $repo->config("$prefix.$setting");
 240                                @$target = @values if (@values && defined $values[0]);
 241                        }
 242                }
 243                else {
 244                        $$target = $repo->config("$prefix.$setting") unless (defined $$target);
 245                }
 246        }
 247}
 248
 249# read configuration from [sendemail "$identity"], fall back on [sendemail]
 250$identity = $repo->config("sendemail.identity") unless (defined $identity);
 251read_config("sendemail.$identity") if (defined $identity);
 252read_config("sendemail");
 253
 254# fall back on builtin bool defaults
 255foreach my $setting (values %config_bool_settings) {
 256        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 257}
 258
 259my ($repoauthor) = $repo->ident_person('author');
 260my ($repocommitter) = $repo->ident_person('committer');
 261
 262# Verify the user input
 263
 264foreach my $entry (@to) {
 265        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 266}
 267
 268foreach my $entry (@initial_cc) {
 269        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 270}
 271
 272foreach my $entry (@bcclist) {
 273        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 274}
 275
 276my %aliases;
 277my %parse_alias = (
 278        # multiline formats can be supported in the future
 279        mutt => sub { my $fh = shift; while (<$fh>) {
 280                if (/^\s*alias\s+(\S+)\s+(.*)$/) {
 281                        my ($alias, $addr) = ($1, $2);
 282                        $addr =~ s/#.*$//; # mutt allows # comments
 283                         # commas delimit multiple addresses
 284                        $aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
 285                }}},
 286        mailrc => sub { my $fh = shift; while (<$fh>) {
 287                if (/^alias\s+(\S+)\s+(.*)$/) {
 288                        # spaces delimit multiple addresses
 289                        $aliases{$1} = [ split(/\s+/, $2) ];
 290                }}},
 291        pine => sub { my $fh = shift; while (<$fh>) {
 292                if (/^(\S+)\t.*\t(.*)$/) {
 293                        $aliases{$1} = [ split(/\s*,\s*/, $2) ];
 294                }}},
 295        gnus => sub { my $fh = shift; while (<$fh>) {
 296                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 297                        $aliases{$1} = [ $2 ];
 298                }}}
 299);
 300
 301if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 302        foreach my $file (@alias_files) {
 303                open my $fh, '<', $file or die "opening $file: $!\n";
 304                $parse_alias{$aliasfiletype}->($fh);
 305                close $fh;
 306        }
 307}
 308
 309($sender) = expand_aliases($sender) if defined $sender;
 310
 311my $prompting = 0;
 312if (!defined $sender) {
 313        $sender = $repoauthor || $repocommitter;
 314        do {
 315                $_ = $term->readline("Who should the emails appear to be from? [$sender] ");
 316        } while (!defined $_);
 317
 318        $sender = $_ if ($_);
 319        print "Emails will be sent from: ", $sender, "\n";
 320        $prompting++;
 321}
 322
 323if (!@to) {
 324        do {
 325                $_ = $term->readline("Who should the emails be sent to? ",
 326                                "");
 327        } while (!defined $_);
 328        my $to = $_;
 329        push @to, split /,/, $to;
 330        $prompting++;
 331}
 332
 333sub expand_aliases {
 334        my @cur = @_;
 335        my @last;
 336        do {
 337                @last = @cur;
 338                @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 339        } while (join(',',@cur) ne join(',',@last));
 340        return @cur;
 341}
 342
 343@to = expand_aliases(@to);
 344@to = (map { sanitize_address($_) } @to);
 345@initial_cc = expand_aliases(@initial_cc);
 346@bcclist = expand_aliases(@bcclist);
 347
 348if (!defined $initial_subject && $compose) {
 349        do {
 350                $_ = $term->readline("What subject should the emails start with? ",
 351                        $initial_subject);
 352        } while (!defined $_);
 353        $initial_subject = $_;
 354        $prompting++;
 355}
 356
 357if ($thread && !defined $initial_reply_to && $prompting) {
 358        do {
 359                $_= $term->readline("Message-ID to be used as In-Reply-To for the first email? ",
 360                        $initial_reply_to);
 361        } while (!defined $_);
 362
 363        $initial_reply_to = $_;
 364        $initial_reply_to =~ s/(^\s+|\s+$)//g;
 365}
 366
 367if (!defined $smtp_server) {
 368        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 369                if (-x $_) {
 370                        $smtp_server = $_;
 371                        last;
 372                }
 373        }
 374        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 375}
 376
 377if ($compose) {
 378        # Note that this does not need to be secure, but we will make a small
 379        # effort to have it be unique
 380        open(C,">",$compose_filename)
 381                or die "Failed to open for writing $compose_filename: $!";
 382        print C "From $sender # This line is ignored.\n";
 383        printf C "Subject: %s\n\n", $initial_subject;
 384        printf C <<EOT;
 385GIT: Please enter your email below.
 386GIT: Lines beginning in "GIT: " will be removed.
 387GIT: Consider including an overall diffstat or table of contents
 388GIT: for the patch you are writing.
 389
 390EOT
 391        close(C);
 392
 393        my $editor = $ENV{GIT_EDITOR} || $repo->config("core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 394        system($editor, $compose_filename);
 395
 396        open(C2,">",$compose_filename . ".final")
 397                or die "Failed to open $compose_filename.final : " . $!;
 398
 399        open(C,"<",$compose_filename)
 400                or die "Failed to open $compose_filename : " . $!;
 401
 402        while(<C>) {
 403                next if m/^GIT: /;
 404                print C2 $_;
 405        }
 406        close(C);
 407        close(C2);
 408
 409        do {
 410                $_ = $term->readline("Send this email? (y|n) ");
 411        } while (!defined $_);
 412
 413        if (uc substr($_,0,1) ne 'Y') {
 414                cleanup_compose_files();
 415                exit(0);
 416        }
 417
 418        @files = ($compose_filename . ".final");
 419}
 420
 421
 422# Now that all the defaults are set, process the rest of the command line
 423# arguments and collect up the files that need to be processed.
 424for my $f (@ARGV) {
 425        if (-d $f) {
 426                opendir(DH,$f)
 427                        or die "Failed to opendir $f: $!";
 428
 429                push @files, grep { -f $_ } map { +$f . "/" . $_ }
 430                                sort readdir(DH);
 431
 432        } elsif (-f $f) {
 433                push @files, $f;
 434
 435        } else {
 436                print STDERR "Skipping $f - not found.\n";
 437        }
 438}
 439
 440if (@files) {
 441        unless ($quiet) {
 442                print $_,"\n" for (@files);
 443        }
 444} else {
 445        print STDERR "\nNo patch files specified!\n\n";
 446        usage();
 447}
 448
 449# Variables we set as part of the loop over files
 450our ($message_id, %mail, $subject, $reply_to, $references, $message);
 451
 452sub extract_valid_address {
 453        my $address = shift;
 454        my $local_part_regexp = '[^<>"\s@]+';
 455        my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 456
 457        # check for a local address:
 458        return $address if ($address =~ /^($local_part_regexp)$/);
 459
 460        $address =~ s/^\s*<(.*)>\s*$/$1/;
 461        if ($have_email_valid) {
 462                return scalar Email::Valid->address($address);
 463        } else {
 464                # less robust/correct than the monster regexp in Email::Valid,
 465                # but still does a 99% job, and one less dependency
 466                $address =~ /($local_part_regexp\@$domain_regexp)/;
 467                return $1;
 468        }
 469}
 470
 471# Usually don't need to change anything below here.
 472
 473# we make a "fake" message id by taking the current number
 474# of seconds since the beginning of Unix time and tacking on
 475# a random number to the end, in case we are called quicker than
 476# 1 second since the last time we were called.
 477
 478# We'll setup a template for the message id, using the "from" address:
 479
 480sub make_message_id
 481{
 482        my $date = time;
 483        my $pseudo_rand = int (rand(4200));
 484        my $du_part;
 485        for ($sender, $repocommitter, $repoauthor) {
 486                $du_part = extract_valid_address(sanitize_address($_));
 487                last if (defined $du_part and $du_part ne '');
 488        }
 489        if (not defined $du_part or $du_part eq '') {
 490                use Sys::Hostname qw();
 491                $du_part = 'user@' . Sys::Hostname::hostname();
 492        }
 493        my $message_id_template = "<%s-git-send-email-$du_part>";
 494        $message_id = sprintf $message_id_template, "$date$pseudo_rand";
 495        #print "new message id = $message_id\n"; # Was useful for debugging
 496}
 497
 498
 499
 500$time = time - scalar $#files;
 501
 502sub unquote_rfc2047 {
 503        local ($_) = @_;
 504        if (s/=\?utf-8\?q\?(.*)\?=/$1/g) {
 505                s/_/ /g;
 506                s/=([0-9A-F]{2})/chr(hex($1))/eg;
 507        }
 508        return "$_";
 509}
 510
 511# use the simplest quoting being able to handle the recipient
 512sub sanitize_address
 513{
 514        my ($recipient) = @_;
 515        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 516
 517        if (not $recipient_name) {
 518                return "$recipient";
 519        }
 520
 521        # if recipient_name is already quoted, do nothing
 522        if ($recipient_name =~ /^(".*"|=\?utf-8\?q\?.*\?=)$/) {
 523                return $recipient;
 524        }
 525
 526        # rfc2047 is needed if a non-ascii char is included
 527        if ($recipient_name =~ /[^[:ascii:]]/) {
 528                $recipient_name =~ s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 529                $recipient_name =~ s/(.*)/=\?utf-8\?q\?$1\?=/;
 530        }
 531
 532        # double quotes are needed if specials or CTLs are included
 533        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 534                $recipient_name =~ s/(["\\\r])/\\$1/;
 535                $recipient_name = "\"$recipient_name\"";
 536        }
 537
 538        return "$recipient_name $recipient_addr";
 539
 540}
 541
 542sub send_message
 543{
 544        my @recipients = unique_email_list(@to);
 545        @cc = (map { sanitize_address($_) } @cc);
 546        my $to = join (",\n\t", @recipients);
 547        @recipients = unique_email_list(@recipients,@cc,@bcclist);
 548        @recipients = (map { extract_valid_address($_) } @recipients);
 549        my $date = format_2822_time($time++);
 550        my $gitversion = '@@GIT_VERSION@@';
 551        if ($gitversion =~ m/..GIT_VERSION../) {
 552            $gitversion = Git::version();
 553        }
 554
 555        my $cc = join(", ", unique_email_list(@cc));
 556        my $ccline = "";
 557        if ($cc ne '') {
 558                $ccline = "\nCc: $cc";
 559        }
 560        my $sanitized_sender = sanitize_address($sender);
 561        make_message_id();
 562
 563        my $header = "From: $sanitized_sender
 564To: $to${ccline}
 565Subject: $subject
 566Date: $date
 567Message-Id: $message_id
 568X-Mailer: git-send-email $gitversion
 569";
 570        if ($thread && $reply_to) {
 571
 572                $header .= "In-Reply-To: $reply_to\n";
 573                $header .= "References: $references\n";
 574        }
 575        if (@xh) {
 576                $header .= join("\n", @xh) . "\n";
 577        }
 578
 579        my @sendmail_parameters = ('-i', @recipients);
 580        my $raw_from = $sanitized_sender;
 581        $raw_from = $envelope_sender if (defined $envelope_sender);
 582        $raw_from = extract_valid_address($raw_from);
 583        unshift (@sendmail_parameters,
 584                        '-f', $raw_from) if(defined $envelope_sender);
 585
 586        if ($dry_run) {
 587                # We don't want to send the email.
 588        } elsif ($smtp_server =~ m#^/#) {
 589                my $pid = open my $sm, '|-';
 590                defined $pid or die $!;
 591                if (!$pid) {
 592                        exec($smtp_server, @sendmail_parameters) or die $!;
 593                }
 594                print $sm "$header\n$message";
 595                close $sm or die $?;
 596        } else {
 597                if ($smtp_ssl) {
 598                        require Net::SMTP::SSL;
 599                        $smtp ||= Net::SMTP::SSL->new( $smtp_server, Port => 465 );
 600                }
 601                else {
 602                        require Net::SMTP;
 603                        $smtp ||= Net::SMTP->new( $smtp_server );
 604                }
 605                $smtp->auth( $smtp_authuser, $smtp_authpass )
 606                        or die $smtp->message if (defined $smtp_authuser);
 607                $smtp->mail( $raw_from ) or die $smtp->message;
 608                $smtp->to( @recipients ) or die $smtp->message;
 609                $smtp->data or die $smtp->message;
 610                $smtp->datasend("$header\n$message") or die $smtp->message;
 611                $smtp->dataend() or die $smtp->message;
 612                $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 613        }
 614        if ($quiet) {
 615                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 616        } else {
 617                print (($dry_run ? "Dry-" : "")."OK. Log says:\nDate: $date\n");
 618                if ($smtp_server !~ m#^/#) {
 619                        print "Server: $smtp_server\n";
 620                        print "MAIL FROM:<$raw_from>\n";
 621                        print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 622                } else {
 623                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 624                }
 625                print "From: $sanitized_sender\nSubject: $subject\nCc: $cc\nTo: $to\n\n";
 626                if ($smtp) {
 627                        print "Result: ", $smtp->code, ' ',
 628                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 629                } else {
 630                        print "Result: OK\n";
 631                }
 632        }
 633}
 634
 635$reply_to = $initial_reply_to;
 636$references = $initial_reply_to || '';
 637$subject = $initial_subject;
 638
 639foreach my $t (@files) {
 640        open(F,"<",$t) or die "can't open file $t";
 641
 642        my $author = undef;
 643        @cc = @initial_cc;
 644        @xh = ();
 645        my $input_format = undef;
 646        my $header_done = 0;
 647        $message = "";
 648        while(<F>) {
 649                if (!$header_done) {
 650                        if (/^From /) {
 651                                $input_format = 'mbox';
 652                                next;
 653                        }
 654                        chomp;
 655                        if (!defined $input_format && /^[-A-Za-z]+:\s/) {
 656                                $input_format = 'mbox';
 657                        }
 658
 659                        if (defined $input_format && $input_format eq 'mbox') {
 660                                if (/^Subject:\s+(.*)$/) {
 661                                        $subject = $1;
 662
 663                                } elsif (/^(Cc|From):\s+(.*)$/) {
 664                                        if (unquote_rfc2047($2) eq $sender) {
 665                                                next if ($suppress_from);
 666                                        }
 667                                        elsif ($1 eq 'From') {
 668                                                $author = unquote_rfc2047($2);
 669                                        }
 670                                        printf("(mbox) Adding cc: %s from line '%s'\n",
 671                                                $2, $_) unless $quiet;
 672                                        push @cc, $2;
 673                                }
 674                                elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
 675                                        push @xh, $_;
 676                                }
 677
 678                        } else {
 679                                # In the traditional
 680                                # "send lots of email" format,
 681                                # line 1 = cc
 682                                # line 2 = subject
 683                                # So let's support that, too.
 684                                $input_format = 'lots';
 685                                if (@cc == 0) {
 686                                        printf("(non-mbox) Adding cc: %s from line '%s'\n",
 687                                                $_, $_) unless $quiet;
 688
 689                                        push @cc, $_;
 690
 691                                } elsif (!defined $subject) {
 692                                        $subject = $_;
 693                                }
 694                        }
 695
 696                        # A whitespace line will terminate the headers
 697                        if (m/^\s*$/) {
 698                                $header_done = 1;
 699                        }
 700                } else {
 701                        $message .=  $_;
 702                        if (/^(Signed-off-by|Cc): (.*)$/i && $signed_off_cc) {
 703                                my $c = $2;
 704                                chomp $c;
 705                                push @cc, $c;
 706                                printf("(sob) Adding cc: %s from line '%s'\n",
 707                                        $c, $_) unless $quiet;
 708                        }
 709                }
 710        }
 711        close F;
 712
 713        if (defined $cc_cmd) {
 714                open(F, "$cc_cmd $t |")
 715                        or die "(cc-cmd) Could not execute '$cc_cmd'";
 716                while(<F>) {
 717                        my $c = $_;
 718                        $c =~ s/^\s*//g;
 719                        $c =~ s/\n$//g;
 720                        push @cc, $c;
 721                        printf("(cc-cmd) Adding cc: %s from: '%s'\n",
 722                                $c, $cc_cmd) unless $quiet;
 723                }
 724                close F
 725                        or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
 726        }
 727
 728        if (defined $author) {
 729                $message = "From: $author\n\n$message";
 730        }
 731
 732        send_message();
 733
 734        # set up for the next message
 735        if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
 736                $reply_to = $message_id;
 737                if (length $references > 0) {
 738                        $references .= "\n $message_id";
 739                } else {
 740                        $references = "$message_id";
 741                }
 742        }
 743}
 744
 745if ($compose) {
 746        cleanup_compose_files();
 747}
 748
 749sub cleanup_compose_files() {
 750        unlink($compose_filename, $compose_filename . ".final");
 751
 752}
 753
 754$smtp->quit if $smtp;
 755
 756sub unique_email_list(@) {
 757        my %seen;
 758        my @emails;
 759
 760        foreach my $entry (@_) {
 761                if (my $clean = extract_valid_address($entry)) {
 762                        $seen{$clean} ||= 0;
 763                        next if $seen{$clean}++;
 764                        push @emails, $entry;
 765                } else {
 766                        print STDERR "W: unable to extract a valid address",
 767                                        " from: $entry\n";
 768                }
 769        }
 770        return @emails;
 771}