git-send-email.perl

   1 #!/usr/bin/perl -w
   2 #
   3 # Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
   4 # Copyright 2005 Ryan Anderson <ryan@michonline.com>
   5 #
   6 # GPL v2 (See COPYING)
   7 #
   8 # Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
   9 #
  10 # Sends a collection of emails to the given email addresses, disturbingly fast.
  11 #
  12 # Supports two formats:
  13 # 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches)
  14 # 2. The original format support by Greg's script:
  15 #    first line of the message is who to CC,
  16 #    and second line is the subject of the message.
  17 #
  18
  19 use strict;
  20 use warnings;
  21 use Term::ReadLine;
  22 use Getopt::Long;
  23 use Data::Dumper;
  24 use Term::ANSIColor;
  25 use Git;
  26
  27 $SIG{INT} = sub { print color("reset"), "\n"; exit };
  28
  29 package FakeTerm;
  30 sub new {
  31         my ($class, $reason) = @_;
  32         return bless \$reason, shift;
  33 }
  34 sub readline {
  35         my $self = shift;
  36         die "Cannot use readline on FakeTerm: $$self";
  37 }
  38 package main;
  39
  40
  41 sub usage {
  42         print <<EOT;
  43 git-send-email [options] <file | directory>...
  44 Options:
  45    --from         Specify the "From:" line of the email to be sent.
  46
  47    --to           Specify the primary "To:" line of the email.
  48
  49    --cc           Specify an initial "Cc:" list for the entire series
  50                   of emails.
  51
  52    --cc-cmd       Specify a command to execute per file which adds
  53                   per file specific cc address entries
  54
  55    --bcc          Specify a list of email addresses that should be Bcc:
  56                   on all the emails.
  57
  58    --compose      Use \$GIT_EDITOR, core.editor, \$EDITOR, or \$VISUAL to edit
  59                   an introductory message for the patch series.
  60
  61    --subject      Specify the initial "Subject:" line.
  62                   Only necessary if --compose is also set.  If --compose
  63                   is not set, this will be prompted for.
  64
  65    --in-reply-to  Specify the first "In-Reply-To:" header line.
  66                   Only used if --compose is also set.  If --compose is not
  67                   set, this will be prompted for.
  68
  69    --chain-reply-to If set, the replies will all be to the previous
  70                   email sent, rather than to the first email sent.
  71                   Defaults to on.
  72
  73    --signed-off-cc Automatically add email addresses that appear in
  74                  Signed-off-by: or Cc: lines to the cc: list. Defaults to on.
  75
  76    --identity     The configuration identity, a subsection to prioritise over
  77                   the default section.
  78
  79    --smtp-server  If set, specifies the outgoing SMTP server to use.
  80                   Defaults to localhost.  Port number can be specified here with
  81                   hostname:port format or by using --smtp-server-port option.
  82
  83    --smtp-server-port Specify a port on the outgoing SMTP server to connect to.
  84
  85    --smtp-user    The username for SMTP-AUTH.
  86
  87    --smtp-pass    The password for SMTP-AUTH.
  88
  89    --smtp-ssl     If set, connects to the SMTP server using SSL.
  90
  91    --suppress-cc  Suppress the specified category of auto-CC.  The category
  92                   can be one of 'author' for the patch author, 'self' to
  93                   avoid copying yourself, 'sob' for Signed-off-by lines,
  94                   'cccmd' for the output of the cccmd, or 'all' to suppress
  95                   all of these.
  96
  97    --suppress-from Suppress sending emails to yourself. Defaults to off.
  98
  99    --thread       Specify that the "In-Reply-To:" header should be set on all
 100                   emails. Defaults to on.
 101
 102    --quiet        Make git-send-email less verbose.  One line per email
 103                   should be all that is output.
 104
 105    --dry-run      Do everything except actually send the emails.
 106
 107    --envelope-sender    Specify the envelope sender used to send the emails.
 108
 109    --no-validate        Don't perform any sanity checks on patches.
 110
 111 EOT
 112         exit(1);
 113 }
 114
 115 # most mail servers generate the Date: header, but not all...
 116 sub format_2822_time {
 117         my ($time) = @_;
 118         my @localtm = localtime($time);
 119         my @gmttm = gmtime($time);
 120         my $localmin = $localtm[1] + $localtm[2] * 60;
 121         my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 122         if ($localtm[0] != $gmttm[0]) {
 123                 die "local zone differs from GMT by a non-minute interval\n";
 124         }
 125         if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 126                 $localmin += 1440;
 127         } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 128                 $localmin -= 1440;
 129         } elsif ($gmttm[6] != $localtm[6]) {
 130                 die "local time offset greater than or equal to 24 hours\n";
 131         }
 132         my $offset = $localmin - $gmtmin;
 133         my $offhour = $offset / 60;
 134         my $offmin = abs($offset % 60);
 135         if (abs($offhour) >= 24) {
 136                 die ("local time offset greater than or equal to 24 hours\n");
 137         }
 138
 139         return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 140                        qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 141                        $localtm[3],
 142                        qw(Jan Feb Mar Apr May Jun
 143                           Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 144                        $localtm[5]+1900,
 145                        $localtm[2],
 146                        $localtm[1],
 147                        $localtm[0],
 148                        ($offset >= 0) ? '+' : '-',
 149                        abs($offhour),
 150                        $offmin,
 151                        );
 152 }
 153
 154 my $have_email_valid = eval { require Email::Valid; 1 };
 155 my $smtp;
 156 my $auth;
 157
 158 sub unique_email_list(@);
 159 sub cleanup_compose_files();
 160
 161 # Constants (essentially)
 162 my $compose_filename = ".msg.$$";
 163
 164 # Variables we fill in automatically, or via prompting:
 165 my (@to,@cc,@initial_cc,@bcclist,@xh,
 166         $initial_reply_to,$initial_subject,@files,$author,$sender,$compose,$time);
 167
 168 my $envelope_sender;
 169
 170 # Example reply to:
 171 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 172
 173 my $repo = Git->repository();
 174 my $term = eval {
 175         new Term::ReadLine 'git-send-email';
 176 };
 177 if ($@) {
 178         $term = new FakeTerm "$@: going non-interactive";
 179 }
 180
 181 # Behavior modification variables
 182 my ($quiet, $dry_run) = (0, 0);
 183
 184 # Variables with corresponding config settings
 185 my ($thread, $chain_reply_to, $suppress_from, $signed_off_cc, $cc_cmd);
 186 my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_authpass, $smtp_ssl);
 187 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
 188 my ($no_validate);
 189 my (@suppress_cc);
 190
 191 my %config_bool_settings = (
 192     "thread" => [\$thread, 1],
 193     "chainreplyto" => [\$chain_reply_to, 1],
 194     "suppressfrom" => [\$suppress_from, undef],
 195     "signedoffcc" => [\$signed_off_cc, undef],
 196     "smtpssl" => [\$smtp_ssl, 0],
 197 );
 198
 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     "cccmd" => \$cc_cmd,
 206     "aliasfiletype" => \$aliasfiletype,
 207     "bcc" => \@bcclist,
 208     "aliasesfile" => \@alias_files,
 209     "suppresscc" => \@suppress_cc,
 210 );
 211
 212 # Begin by accumulating all the variables (defined above), that we will end up
 213 # needing, first, from the command line:
 214
 215 my $rc = GetOptions("sender|from=s" => \$sender,
 216                     "in-reply-to=s" => \$initial_reply_to,
 217                     "subject=s" => \$initial_subject,
 218                     "to=s" => \@to,
 219                     "cc=s" => \@initial_cc,
 220                     "bcc=s" => \@bcclist,
 221                     "chain-reply-to!" => \$chain_reply_to,
 222                     "smtp-server=s" => \$smtp_server,
 223                     "smtp-server-port=s" => \$smtp_server_port,
 224                     "smtp-user=s" => \$smtp_authuser,
 225                     "smtp-pass=s" => \$smtp_authpass,
 226                     "smtp-ssl!" => \$smtp_ssl,
 227                     "identity=s" => \$identity,
 228                     "compose" => \$compose,
 229                     "quiet" => \$quiet,
 230                     "cc-cmd=s" => \$cc_cmd,
 231                     "suppress-from!" => \$suppress_from,
 232                     "suppress-cc=s" => \@suppress_cc,
 233                     "signed-off-cc|signed-off-by-cc!" => \$signed_off_cc,
 234                     "dry-run" => \$dry_run,
 235                     "envelope-sender=s" => \$envelope_sender,
 236                     "thread!" => \$thread,
 237                     "no-validate" => \$no_validate,
 238          );
 239
 240 unless ($rc) {
 241     usage();
 242 }
 243
 244 # Now, let's fill any that aren't set in with defaults:
 245
 246 sub read_config {
 247         my ($prefix) = @_;
 248
 249         foreach my $setting (keys %config_bool_settings) {
 250                 my $target = $config_bool_settings{$setting}->[0];
 251                 $$target = $repo->config_bool("$prefix.$setting") unless (defined $$target);
 252         }
 253
 254         foreach my $setting (keys %config_settings) {
 255                 my $target = $config_settings{$setting};
 256                 if (ref($target) eq "ARRAY") {
 257                         unless (@$target) {
 258                                 my @values = $repo->config("$prefix.$setting");
 259                                 @$target = @values if (@values && defined $values[0]);
 260                         }
 261                 }
 262                 else {
 263                         $$target = $repo->config("$prefix.$setting") unless (defined $$target);
 264                 }
 265         }
 266 }
 267
 268 # read configuration from [sendemail "$identity"], fall back on [sendemail]
 269 $identity = $repo->config("sendemail.identity") unless (defined $identity);
 270 read_config("sendemail.$identity") if (defined $identity);
 271 read_config("sendemail");
 272
 273 # fall back on builtin bool defaults
 274 foreach my $setting (values %config_bool_settings) {
 275         ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 276 }
 277
 278 # Set CC suppressions
 279 my(%suppress_cc);
 280 if (@suppress_cc) {
 281         foreach my $entry (@suppress_cc) {
 282                 die "Unknown --suppress-cc field: '$entry'\n"
 283                         unless $entry =~ /^(all|cccmd|cc|author|self|sob)$/;
 284                 $suppress_cc{$entry} = 1;
 285         }
 286 }
 287
 288 if ($suppress_cc{'all'}) {
 289         foreach my $entry (qw (ccmd cc author self sob)) {
 290                 $suppress_cc{$entry} = 1;
 291         }
 292         delete $suppress_cc{'all'};
 293 }
 294
 295 # If explicit old-style ones are specified, they trump --suppress-cc.
 296 $suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 297 $suppress_cc{'sob'} = $signed_off_cc if defined $signed_off_cc;
 298
 299 # Debugging, print out the suppressions.
 300 if (0) {
 301         print "suppressions:\n";
 302         foreach my $entry (keys %suppress_cc) {
 303                 printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 304         }
 305 }
 306
 307 my ($repoauthor) = $repo->ident_person('author');
 308 my ($repocommitter) = $repo->ident_person('committer');
 309
 310 # Verify the user input
 311
 312 foreach my $entry (@to) {
 313         die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 314 }
 315
 316 foreach my $entry (@initial_cc) {
 317         die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 318 }
 319
 320 foreach my $entry (@bcclist) {
 321         die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 322 }
 323
 324 my %aliases;
 325 my %parse_alias = (
 326         # multiline formats can be supported in the future
 327         mutt => sub { my $fh = shift; while (<$fh>) {
 328                 if (/^\s*alias\s+(\S+)\s+(.*)$/) {
 329                         my ($alias, $addr) = ($1, $2);
 330                         $addr =~ s/#.*$//; # mutt allows # comments
 331                          # commas delimit multiple addresses
 332                         $aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
 333                 }}},
 334         mailrc => sub { my $fh = shift; while (<$fh>) {
 335                 if (/^alias\s+(\S+)\s+(.*)$/) {
 336                         # spaces delimit multiple addresses
 337                         $aliases{$1} = [ split(/\s+/, $2) ];
 338                 }}},
 339         pine => sub { my $fh = shift; while (<$fh>) {
 340                 if (/^(\S+)\t.*\t(.*)$/) {
 341                         $aliases{$1} = [ split(/\s*,\s*/, $2) ];
 342                 }}},
 343         gnus => sub { my $fh = shift; while (<$fh>) {
 344                 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 345                         $aliases{$1} = [ $2 ];
 346                 }}}
 347 );
 348
 349 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 350         foreach my $file (@alias_files) {
 351                 open my $fh, '<', $file or die "opening $file: $!\n";
 352                 $parse_alias{$aliasfiletype}->($fh);
 353                 close $fh;
 354         }
 355 }
 356
 357 ($sender) = expand_aliases($sender) if defined $sender;
 358
 359 # Now that all the defaults are set, process the rest of the command line
 360 # arguments and collect up the files that need to be processed.
 361 for my $f (@ARGV) {
 362         if (-d $f) {
 363                 opendir(DH,$f)
 364                         or die "Failed to opendir $f: $!";
 365
 366                 push @files, grep { -f $_ } map { +$f . "/" . $_ }
 367                                 sort readdir(DH);
 368
 369         } elsif (-f $f) {
 370                 push @files, $f;
 371
 372         } else {
 373                 print STDERR "Skipping $f - not found.\n";
 374         }
 375 }
 376
 377 if (!$no_validate) {
 378         foreach my $f (@files) {
 379                 my $error = validate_patch($f);
 380                 $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 381         }
 382 }
 383
 384 if (@files) {
 385         unless ($quiet) {
 386                 print $_,"\n" for (@files);
 387         }
 388 } else {
 389         print STDERR "\nNo patch files specified!\n\n";
 390         usage();
 391 }
 392
 393 my $prompting = 0;
 394 if (!defined $sender) {
 395         $sender = $repoauthor || $repocommitter;
 396         do {
 397                 $_ = $term->readline("Who should the emails appear to be from? [$sender] ");
 398         } while (!defined $_);
 399
 400         $sender = $_ if ($_);
 401         print "Emails will be sent from: ", $sender, "\n";
 402         $prompting++;
 403 }
 404
 405 if (!@to) {
 406         do {
 407                 $_ = $term->readline("Who should the emails be sent to? ",
 408                                 "");
 409         } while (!defined $_);
 410         my $to = $_;
 411         push @to, split /,/, $to;
 412         $prompting++;
 413 }
 414
 415 sub expand_aliases {
 416         my @cur = @_;
 417         my @last;
 418         do {
 419                 @last = @cur;
 420                 @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 421         } while (join(',',@cur) ne join(',',@last));
 422         return @cur;
 423 }
 424
 425 @to = expand_aliases(@to);
 426 @to = (map { sanitize_address($_) } @to);
 427 @initial_cc = expand_aliases(@initial_cc);
 428 @bcclist = expand_aliases(@bcclist);
 429
 430 if (!defined $initial_subject && $compose) {
 431         do {
 432                 $_ = $term->readline("What subject should the initial email start with? ",
 433                         $initial_subject);
 434         } while (!defined $_);
 435         $initial_subject = $_;
 436         $prompting++;
 437 }
 438
 439 if ($thread && !defined $initial_reply_to && $prompting) {
 440         do {
 441                 $_= $term->readline("Message-ID to be used as In-Reply-To for the first email? ",
 442                         $initial_reply_to);
 443         } while (!defined $_);
 444
 445         $initial_reply_to = $_;
 446 }
 447 if (defined $initial_reply_to && $_ ne "") {
 448         $initial_reply_to =~ s/^\s*<?/</;
 449         $initial_reply_to =~ s/>?\s*$/>/;
 450 }
 451
 452 if (!defined $smtp_server) {
 453         foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 454                 if (-x $_) {
 455                         $smtp_server = $_;
 456                         last;
 457                 }
 458         }
 459         $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 460 }
 461
 462 if ($compose) {
 463         # Note that this does not need to be secure, but we will make a small
 464         # effort to have it be unique
 465         open(C,">",$compose_filename)
 466                 or die "Failed to open for writing $compose_filename: $!";
 467         print C "From $sender # This line is ignored.\n";
 468         printf C "Subject: %s\n\n", $initial_subject;
 469         printf C <<EOT;
 470 GIT: Please enter your email below.
 471 GIT: Lines beginning in "GIT: " will be removed.
 472 GIT: Consider including an overall diffstat or table of contents
 473 GIT: for the patch you are writing.
 474
 475 EOT
 476         close(C);
 477
 478         my $editor = $ENV{GIT_EDITOR} || $repo->config("core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 479         system('sh', '-c', '$0 $@', $editor, $compose_filename);
 480
 481         open(C2,">",$compose_filename . ".final")
 482                 or die "Failed to open $compose_filename.final : " . $!;
 483
 484         open(C,"<",$compose_filename)
 485                 or die "Failed to open $compose_filename : " . $!;
 486
 487         while(<C>) {
 488                 next if m/^GIT: /;
 489                 print C2 $_;
 490         }
 491         close(C);
 492         close(C2);
 493
 494         do {
 495                 $_ = $term->readline("Send this email? (y|n) ");
 496         } while (!defined $_);
 497
 498         if (uc substr($_,0,1) ne 'Y') {
 499                 cleanup_compose_files();
 500                 exit(0);
 501         }
 502
 503         @files = ($compose_filename . ".final", @files);
 504 }
 505
 506 # Variables we set as part of the loop over files
 507 our ($message_id, %mail, $subject, $reply_to, $references, $message);
 508
 509 sub extract_valid_address {
 510         my $address = shift;
 511         my $local_part_regexp = '[^<>"\s@]+';
 512         my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 513
 514         # check for a local address:
 515         return $address if ($address =~ /^($local_part_regexp)$/);
 516
 517         $address =~ s/^\s*<(.*)>\s*$/$1/;
 518         if ($have_email_valid) {
 519                 return scalar Email::Valid->address($address);
 520         } else {
 521                 # less robust/correct than the monster regexp in Email::Valid,
 522                 # but still does a 99% job, and one less dependency
 523                 $address =~ /($local_part_regexp\@$domain_regexp)/;
 524                 return $1;
 525         }
 526 }
 527
 528 # Usually don't need to change anything below here.
 529
 530 # we make a "fake" message id by taking the current number
 531 # of seconds since the beginning of Unix time and tacking on
 532 # a random number to the end, in case we are called quicker than
 533 # 1 second since the last time we were called.
 534
 535 # We'll setup a template for the message id, using the "from" address:
 536
 537 my ($message_id_stamp, $message_id_serial);
 538 sub make_message_id
 539 {
 540         my $uniq;
 541         if (!defined $message_id_stamp) {
 542                 $message_id_stamp = sprintf("%s-%s", time, $$);
 543                 $message_id_serial = 0;
 544         }
 545         $message_id_serial++;
 546         $uniq = "$message_id_stamp-$message_id_serial";
 547
 548         my $du_part;
 549         for ($sender, $repocommitter, $repoauthor) {
 550                 $du_part = extract_valid_address(sanitize_address($_));
 551                 last if (defined $du_part and $du_part ne '');
 552         }
 553         if (not defined $du_part or $du_part eq '') {
 554                 use Sys::Hostname qw();
 555                 $du_part = 'user@' . Sys::Hostname::hostname();
 556         }
 557         my $message_id_template = "<%s-git-send-email-%s>";
 558         $message_id = sprintf($message_id_template, $uniq, $du_part);
 559         #print "new message id = $message_id\n"; # Was useful for debugging
 560 }
 561
 562
 563
 564 $time = time - scalar $#files;
 565
 566 sub unquote_rfc2047 {
 567         local ($_) = @_;
 568         my $encoding;
 569         if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 570                 $encoding = $1;
 571                 s/_/ /g;
 572                 s/=([0-9A-F]{2})/chr(hex($1))/eg;
 573         }
 574         return wantarray ? ($_, $encoding) : $_;
 575 }
 576
 577 # use the simplest quoting being able to handle the recipient
 578 sub sanitize_address
 579 {
 580         my ($recipient) = @_;
 581         my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 582
 583         if (not $recipient_name) {
 584                 return "$recipient";
 585         }
 586
 587         # if recipient_name is already quoted, do nothing
 588         if ($recipient_name =~ /^(".*"|=\?utf-8\?q\?.*\?=)$/) {
 589                 return $recipient;
 590         }
 591
 592         # rfc2047 is needed if a non-ascii char is included
 593         if ($recipient_name =~ /[^[:ascii:]]/) {
 594                 $recipient_name =~ s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 595                 $recipient_name =~ s/(.*)/=\?utf-8\?q\?$1\?=/;
 596         }
 597
 598         # double quotes are needed if specials or CTLs are included
 599         elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 600                 $recipient_name =~ s/(["\\\r])/\\$1/;
 601                 $recipient_name = "\"$recipient_name\"";
 602         }
 603
 604         return "$recipient_name $recipient_addr";
 605
 606 }
 607
 608 sub send_message
 609 {
 610         my @recipients = unique_email_list(@to);
 611         @cc = (grep { my $cc = extract_valid_address($_);
 612                       not grep { $cc eq $_ } @recipients
 613                     }
 614                map { sanitize_address($_) }
 615                @cc);
 616         my $to = join (",\n\t", @recipients);
 617         @recipients = unique_email_list(@recipients,@cc,@bcclist);
 618         @recipients = (map { extract_valid_address($_) } @recipients);
 619         my $date = format_2822_time($time++);
 620         my $gitversion = '@@GIT_VERSION@@';
 621         if ($gitversion =~ m/..GIT_VERSION../) {
 622             $gitversion = Git::version();
 623         }
 624
 625         my $cc = join(", ", unique_email_list(@cc));
 626         my $ccline = "";
 627         if ($cc ne '') {
 628                 $ccline = "\nCc: $cc";
 629         }
 630         my $sanitized_sender = sanitize_address($sender);
 631         make_message_id() unless defined($message_id);
 632
 633         my $header = "From: $sanitized_sender
 634 To: $to${ccline}
 635 Subject: $subject
 636 Date: $date
 637 Message-Id: $message_id
 638 X-Mailer: git-send-email $gitversion
 639 ";
 640         if ($thread && $reply_to) {
 641
 642                 $header .= "In-Reply-To: $reply_to\n";
 643                 $header .= "References: $references\n";
 644         }
 645         if (@xh) {
 646                 $header .= join("\n", @xh) . "\n";
 647         }
 648
 649         my @sendmail_parameters = ('-i', @recipients);
 650         my $raw_from = $sanitized_sender;
 651         $raw_from = $envelope_sender if (defined $envelope_sender);
 652         $raw_from = extract_valid_address($raw_from);
 653         unshift (@sendmail_parameters,
 654                         '-f', $raw_from) if(defined $envelope_sender);
 655
 656         if ($dry_run) {
 657                 # We don't want to send the email.
 658         } elsif ($smtp_server =~ m#^/#) {
 659                 my $pid = open my $sm, '|-';
 660                 defined $pid or die $!;
 661                 if (!$pid) {
 662                         exec($smtp_server, @sendmail_parameters) or die $!;
 663                 }
 664                 print $sm "$header\n$message";
 665                 close $sm or die $?;
 666         } else {
 667
 668                 if (!defined $smtp_server) {
 669                         die "The required SMTP server is not properly defined."
 670                 }
 671
 672                 if ($smtp_ssl) {
 673                         $smtp_server_port ||= 465; # ssmtp
 674                         require Net::SMTP::SSL;
 675                         $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
 676                 }
 677                 else {
 678                         require Net::SMTP;
 679                         $smtp ||= Net::SMTP->new((defined $smtp_server_port)
 680                                                  ? "$smtp_server:$smtp_server_port"
 681                                                  : $smtp_server);
 682                 }
 683
 684                 if (!$smtp) {
 685                         die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
 686                 }
 687
 688                 if ((defined $smtp_authuser) && (defined $smtp_authpass)) {
 689                         $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 690                 }
 691                 $smtp->mail( $raw_from ) or die $smtp->message;
 692                 $smtp->to( @recipients ) or die $smtp->message;
 693                 $smtp->data or die $smtp->message;
 694                 $smtp->datasend("$header\n$message") or die $smtp->message;
 695                 $smtp->dataend() or die $smtp->message;
 696                 $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 697         }
 698         if ($quiet) {
 699                 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 700         } else {
 701                 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
 702                 if ($smtp_server !~ m#^/#) {
 703                         print "Server: $smtp_server\n";
 704                         print "MAIL FROM:<$raw_from>\n";
 705                         print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 706                 } else {
 707                         print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 708                 }
 709                 print $header, "\n";
 710                 if ($smtp) {
 711                         print "Result: ", $smtp->code, ' ',
 712                                 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 713                 } else {
 714                         print "Result: OK\n";
 715                 }
 716         }
 717 }
 718
 719 $reply_to = $initial_reply_to;
 720 $references = $initial_reply_to || '';
 721 $subject = $initial_subject;
 722
 723 foreach my $t (@files) {
 724         open(F,"<",$t) or die "can't open file $t";
 725
 726         my $author = undef;
 727         my $author_encoding;
 728         my $has_content_type;
 729         my $body_encoding;
 730         @cc = @initial_cc;
 731         @xh = ();
 732         my $input_format = undef;
 733         my $header_done = 0;
 734         $message = "";
 735         while(<F>) {
 736                 if (!$header_done) {
 737                         if (/^From /) {
 738                                 $input_format = 'mbox';
 739                                 next;
 740                         }
 741                         chomp;
 742                         if (!defined $input_format && /^[-A-Za-z]+:\s/) {
 743                                 $input_format = 'mbox';
 744                         }
 745
 746                         if (defined $input_format && $input_format eq 'mbox') {
 747                                 if (/^Subject:\s+(.*)$/) {
 748                                         $subject = $1;
 749
 750                                 } elsif (/^(Cc|From):\s+(.*)$/) {
 751                                         if (unquote_rfc2047($2) eq $sender) {
 752                                                 next if ($suppress_cc{'self'});
 753                                         }
 754                                         elsif ($1 eq 'From') {
 755                                                 ($author, $author_encoding)
 756                                                   = unquote_rfc2047($2);
 757                                                 next if ($suppress_cc{'author'});
 758                                         } else {
 759                                                 next if ($suppress_cc{'cc'});
 760                                         }
 761                                         printf("(mbox) Adding cc: %s from line '%s'\n",
 762                                                 $2, $_) unless $quiet;
 763                                         push @cc, $2;
 764                                 }
 765                                 elsif (/^Content-type:/i) {
 766                                         $has_content_type = 1;
 767                                         if (/charset="?[^ "]+/) {
 768                                                 $body_encoding = $1;
 769                                         }
 770                                         push @xh, $_;
 771                                 }
 772                                 elsif (/^Message-Id: (.*)/i) {
 773                                         $message_id = $1;
 774                                 }
 775                                 elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
 776                                         push @xh, $_;
 777                                 }
 778
 779                         } else {
 780                                 # In the traditional
 781                                 # "send lots of email" format,
 782                                 # line 1 = cc
 783                                 # line 2 = subject
 784                                 # So let's support that, too.
 785                                 $input_format = 'lots';
 786                                 if (@cc == 0 && !$suppress_cc{'cc'}) {
 787                                         printf("(non-mbox) Adding cc: %s from line '%s'\n",
 788                                                 $_, $_) unless $quiet;
 789
 790                                         push @cc, $_;
 791
 792                                 } elsif (!defined $subject) {
 793                                         $subject = $_;
 794                                 }
 795                         }
 796
 797                         # A whitespace line will terminate the headers
 798                         if (m/^\s*$/) {
 799                                 $header_done = 1;
 800                         }
 801                 } else {
 802                         $message .=  $_;
 803                         if (/^(Signed-off-by|Cc): (.*)$/i) {
 804                                 next if ($suppress_cc{'sob'});
 805                                 my $c = $2;
 806                                 chomp $c;
 807                                 next if ($c eq $sender and $suppress_cc{'self'});
 808                                 push @cc, $c;
 809                                 printf("(sob) Adding cc: %s from line '%s'\n",
 810                                         $c, $_) unless $quiet;
 811                         }
 812                 }
 813         }
 814         close F;
 815
 816         if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
 817                 open(F, "$cc_cmd $t |")
 818                         or die "(cc-cmd) Could not execute '$cc_cmd'";
 819                 while(<F>) {
 820                         my $c = $_;
 821                         $c =~ s/^\s*//g;
 822                         $c =~ s/\n$//g;
 823                         next if ($c eq $sender and $suppress_from);
 824                         push @cc, $c;
 825                         printf("(cc-cmd) Adding cc: %s from: '%s'\n",
 826                                 $c, $cc_cmd) unless $quiet;
 827                 }
 828                 close F
 829                         or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
 830         }
 831
 832         if (defined $author) {
 833                 $message = "From: $author\n\n$message";
 834                 if (defined $author_encoding) {
 835                         if ($has_content_type) {
 836                                 if ($body_encoding eq $author_encoding) {
 837                                         # ok, we already have the right encoding
 838                                 }
 839                                 else {
 840                                         # uh oh, we should re-encode
 841                                 }
 842                         }
 843                         else {
 844                                 push @xh,
 845                                   'MIME-Version: 1.0',
 846                                   "Content-Type: text/plain; charset=$author_encoding",
 847                                   'Content-Transfer-Encoding: 8bit';
 848                         }
 849                 }
 850         }
 851
 852         send_message();
 853
 854         # set up for the next message
 855         if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
 856                 $reply_to = $message_id;
 857                 if (length $references > 0) {
 858                         $references .= "\n $message_id";
 859                 } else {
 860                         $references = "$message_id";
 861                 }
 862         }
 863         $message_id = undef;
 864 }
 865
 866 if ($compose) {
 867         cleanup_compose_files();
 868 }
 869
 870 sub cleanup_compose_files() {
 871         unlink($compose_filename, $compose_filename . ".final");
 872
 873 }
 874
 875 $smtp->quit if $smtp;
 876
 877 sub unique_email_list(@) {
 878         my %seen;
 879         my @emails;
 880
 881         foreach my $entry (@_) {
 882                 if (my $clean = extract_valid_address($entry)) {
 883                         $seen{$clean} ||= 0;
 884                         next if $seen{$clean}++;
 885                         push @emails, $entry;
 886                 } else {
 887                         print STDERR "W: unable to extract a valid address",
 888                                         " from: $entry\n";
 889                 }
 890         }
 891         return @emails;
 892 }
 893
 894 sub validate_patch {
 895         my $fn = shift;
 896         open(my $fh, '<', $fn)
 897                 or die "unable to open $fn: $!\n";
 898         while (my $line = <$fh>) {
 899                 if (length($line) > 998) {
 900                         return "$.: patch contains a line longer than 998 characters";
 901                 }
 902         }
 903         return undef;
 904 }