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 package FakeTerm;
  28 sub new {
  29         my ($class, $reason) = @_;
  30         return bless \$reason, shift;
  31 }
  32 sub readline {
  33         my $self = shift;
  34         die "Cannot use readline on FakeTerm: $$self";
  35 }
  36 package main;
  37
  38
  39 sub usage {
  40         print <<EOT;
  41 git send-email [options] <file | directory>...
  42 Options:
  43    --identity              <str>  * Use the sendemail.<id> options.
  44    --from                  <str>  * Email From:
  45    --envelope-sender       <str>  * Email envelope sender.
  46    --to                    <str>  * Email To:
  47    --cc                    <str>  * Email Cc:
  48    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  49    --bcc                   <str>  * Email Bcc:
  50    --subject               <str>  * Email "Subject:" (only if --compose).
  51    --compose                      * Open an editor for introduction.
  52    --in-reply-to           <str>  * First "In-Reply-To:" (only if --compose).
  53    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default on.
  54    --[no-]thread                  * Use In-Reply-To: field. Default on.
  55    --[no-]signed-off-by-cc        * Actually send to Cc: and Signed-off-by:
  56                                     addresses. Default on.
  57    --suppress-cc           <str>  * author, self, sob, cccmd, all.
  58    --[no-]suppress-from           * Don't send email to self. Default off.
  59    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  60                                     is optional. Default 'localhost'.
  61    --smtp-server-port      <int>  * Outgoing SMTP server port.
  62    --smtp-user             <str>  * The username for SMTP-AUTH.
  63    --smtp-pass             <str>  * The password for SMTP-AUTH; not necessary.
  64    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  65    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  66    --quiet                        * Output one line of info per email.
  67    --dry-run                      * Don't actually send the emails.
  68    --[no-]validate                * Perform patch sanity checks. Default on.
  69
  70 EOT
  71         exit(1);
  72 }
  73
  74 # most mail servers generate the Date: header, but not all...
  75 sub format_2822_time {
  76         my ($time) = @_;
  77         my @localtm = localtime($time);
  78         my @gmttm = gmtime($time);
  79         my $localmin = $localtm[1] + $localtm[2] * 60;
  80         my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
  81         if ($localtm[0] != $gmttm[0]) {
  82                 die "local zone differs from GMT by a non-minute interval\n";
  83         }
  84         if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
  85                 $localmin += 1440;
  86         } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
  87                 $localmin -= 1440;
  88         } elsif ($gmttm[6] != $localtm[6]) {
  89                 die "local time offset greater than or equal to 24 hours\n";
  90         }
  91         my $offset = $localmin - $gmtmin;
  92         my $offhour = $offset / 60;
  93         my $offmin = abs($offset % 60);
  94         if (abs($offhour) >= 24) {
  95                 die ("local time offset greater than or equal to 24 hours\n");
  96         }
  97
  98         return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
  99                        qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 100                        $localtm[3],
 101                        qw(Jan Feb Mar Apr May Jun
 102                           Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 103                        $localtm[5]+1900,
 104                        $localtm[2],
 105                        $localtm[1],
 106                        $localtm[0],
 107                        ($offset >= 0) ? '+' : '-',
 108                        abs($offhour),
 109                        $offmin,
 110                        );
 111 }
 112
 113 my $have_email_valid = eval { require Email::Valid; 1 };
 114 my $smtp;
 115 my $auth;
 116
 117 sub unique_email_list(@);
 118 sub cleanup_compose_files();
 119
 120 # Constants (essentially)
 121 my $compose_filename = ".msg.$$";
 122
 123 # Variables we fill in automatically, or via prompting:
 124 my (@to,@cc,@initial_cc,@bcclist,@xh,
 125         $initial_reply_to,$initial_subject,@files,$author,$sender,$smtp_authpass,$compose,$time);
 126
 127 my $envelope_sender;
 128
 129 # Example reply to:
 130 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 131
 132 my $repo = eval { Git->repository() };
 133 my @repo = $repo ? ($repo) : ();
 134 my $term = eval {
 135         $ENV{"GIT_SEND_EMAIL_NOTTY"}
 136                 ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 137                 : new Term::ReadLine 'git-send-email';
 138 };
 139 if ($@) {
 140         $term = new FakeTerm "$@: going non-interactive";
 141 }
 142
 143 # Behavior modification variables
 144 my ($quiet, $dry_run) = (0, 0);
 145
 146 # Variables with corresponding config settings
 147 my ($thread, $chain_reply_to, $suppress_from, $signed_off_cc, $cc_cmd);
 148 my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
 149 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
 150 my ($validate);
 151 my (@suppress_cc);
 152
 153 my %config_bool_settings = (
 154     "thread" => [\$thread, 1],
 155     "chainreplyto" => [\$chain_reply_to, 1],
 156     "suppressfrom" => [\$suppress_from, undef],
 157     "signedoffcc" => [\$signed_off_cc, undef],
 158     "validate" => [\$validate, 1],
 159 );
 160
 161 my %config_settings = (
 162     "smtpserver" => \$smtp_server,
 163     "smtpserverport" => \$smtp_server_port,
 164     "smtpuser" => \$smtp_authuser,
 165     "smtppass" => \$smtp_authpass,
 166     "to" => \@to,
 167     "cc" => \@initial_cc,
 168     "cccmd" => \$cc_cmd,
 169     "aliasfiletype" => \$aliasfiletype,
 170     "bcc" => \@bcclist,
 171     "aliasesfile" => \@alias_files,
 172     "suppresscc" => \@suppress_cc,
 173     "envelopesender" => \$envelope_sender,
 174 );
 175
 176 # Handle Uncouth Termination
 177 sub signal_handler {
 178
 179         # Make text normal
 180         print color("reset"), "\n";
 181
 182         # SMTP password masked
 183         system "stty echo";
 184
 185         # tmp files from --compose
 186         if (-e $compose_filename) {
 187                 print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
 188         }
 189         if (-e ($compose_filename . ".final")) {
 190                 print "'$compose_filename.final' contains the composed email.\n"
 191         }
 192
 193         exit;
 194 };
 195
 196 $SIG{TERM} = \&signal_handler;
 197 $SIG{INT}  = \&signal_handler;
 198
 199 # Begin by accumulating all the variables (defined above), that we will end up
 200 # needing, first, from the command line:
 201
 202 my $rc = GetOptions("sender|from=s" => \$sender,
 203                     "in-reply-to=s" => \$initial_reply_to,
 204                     "subject=s" => \$initial_subject,
 205                     "to=s" => \@to,
 206                     "cc=s" => \@initial_cc,
 207                     "bcc=s" => \@bcclist,
 208                     "chain-reply-to!" => \$chain_reply_to,
 209                     "smtp-server=s" => \$smtp_server,
 210                     "smtp-server-port=s" => \$smtp_server_port,
 211                     "smtp-user=s" => \$smtp_authuser,
 212                     "smtp-pass:s" => \$smtp_authpass,
 213                     "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 214                     "smtp-encryption=s" => \$smtp_encryption,
 215                     "identity=s" => \$identity,
 216                     "compose" => \$compose,
 217                     "quiet" => \$quiet,
 218                     "cc-cmd=s" => \$cc_cmd,
 219                     "suppress-from!" => \$suppress_from,
 220                     "suppress-cc=s" => \@suppress_cc,
 221                     "signed-off-cc|signed-off-by-cc!" => \$signed_off_cc,
 222                     "dry-run" => \$dry_run,
 223                     "envelope-sender=s" => \$envelope_sender,
 224                     "thread!" => \$thread,
 225                     "validate!" => \$validate,
 226          );
 227
 228 unless ($rc) {
 229     usage();
 230 }
 231
 232 # Now, let's fill any that aren't set in with defaults:
 233
 234 sub read_config {
 235         my ($prefix) = @_;
 236
 237         foreach my $setting (keys %config_bool_settings) {
 238                 my $target = $config_bool_settings{$setting}->[0];
 239                 $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 240         }
 241
 242         foreach my $setting (keys %config_settings) {
 243                 my $target = $config_settings{$setting};
 244                 if (ref($target) eq "ARRAY") {
 245                         unless (@$target) {
 246                                 my @values = Git::config(@repo, "$prefix.$setting");
 247                                 @$target = @values if (@values && defined $values[0]);
 248                         }
 249                 }
 250                 else {
 251                         $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 252                 }
 253         }
 254
 255         if (!defined $smtp_encryption) {
 256                 my $enc = Git::config(@repo, "$prefix.smtpencryption");
 257                 if (defined $enc) {
 258                         $smtp_encryption = $enc;
 259                 } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 260                         $smtp_encryption = 'ssl';
 261                 }
 262         }
 263 }
 264
 265 # read configuration from [sendemail "$identity"], fall back on [sendemail]
 266 $identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 267 read_config("sendemail.$identity") if (defined $identity);
 268 read_config("sendemail");
 269
 270 # fall back on builtin bool defaults
 271 foreach my $setting (values %config_bool_settings) {
 272         ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 273 }
 274
 275 # 'default' encryption is none -- this only prevents a warning
 276 $smtp_encryption = '' unless (defined $smtp_encryption);
 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, $repocommitter);
 308 ($repoauthor) = Git::ident_person(@repo, 'author');
 309 ($repocommitter) = Git::ident_person(@repo, 'committer');
 310
 311 # Verify the user input
 312
 313 foreach my $entry (@to) {
 314         die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 315 }
 316
 317 foreach my $entry (@initial_cc) {
 318         die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 319 }
 320
 321 foreach my $entry (@bcclist) {
 322         die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 323 }
 324
 325 my %aliases;
 326 my %parse_alias = (
 327         # multiline formats can be supported in the future
 328         mutt => sub { my $fh = shift; while (<$fh>) {
 329                 if (/^\s*alias\s+(\S+)\s+(.*)$/) {
 330                         my ($alias, $addr) = ($1, $2);
 331                         $addr =~ s/#.*$//; # mutt allows # comments
 332                          # commas delimit multiple addresses
 333                         $aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
 334                 }}},
 335         mailrc => sub { my $fh = shift; while (<$fh>) {
 336                 if (/^alias\s+(\S+)\s+(.*)$/) {
 337                         # spaces delimit multiple addresses
 338                         $aliases{$1} = [ split(/\s+/, $2) ];
 339                 }}},
 340         pine => sub { my $fh = shift; while (<$fh>) {
 341                 if (/^(\S+)\t.*\t(.*)$/) {
 342                         $aliases{$1} = [ split(/\s*,\s*/, $2) ];
 343                 }}},
 344         gnus => sub { my $fh = shift; while (<$fh>) {
 345                 if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 346                         $aliases{$1} = [ $2 ];
 347                 }}}
 348 );
 349
 350 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 351         foreach my $file (@alias_files) {
 352                 open my $fh, '<', $file or die "opening $file: $!\n";
 353                 $parse_alias{$aliasfiletype}->($fh);
 354                 close $fh;
 355         }
 356 }
 357
 358 ($sender) = expand_aliases($sender) if defined $sender;
 359
 360 # Now that all the defaults are set, process the rest of the command line
 361 # arguments and collect up the files that need to be processed.
 362 for my $f (@ARGV) {
 363         if (-d $f) {
 364                 opendir(DH,$f)
 365                         or die "Failed to opendir $f: $!";
 366
 367                 push @files, grep { -f $_ } map { +$f . "/" . $_ }
 368                                 sort readdir(DH);
 369
 370         } elsif (-f $f or -p $f) {
 371                 push @files, $f;
 372
 373         } else {
 374                 print STDERR "Skipping $f - not found.\n";
 375         }
 376 }
 377
 378 if ($validate) {
 379         foreach my $f (@files) {
 380                 unless (-p $f) {
 381                         my $error = validate_patch($f);
 382                         $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 383                 }
 384         }
 385 }
 386
 387 if (@files) {
 388         unless ($quiet) {
 389                 print $_,"\n" for (@files);
 390         }
 391 } else {
 392         print STDERR "\nNo patch files specified!\n\n";
 393         usage();
 394 }
 395
 396 my $prompting = 0;
 397 if (!defined $sender) {
 398         $sender = $repoauthor || $repocommitter || '';
 399
 400         while (1) {
 401                 $_ = $term->readline("Who should the emails appear to be from? [$sender] ");
 402                 last if defined $_;
 403                 print "\n";
 404         }
 405
 406         $sender = $_ if ($_);
 407         print "Emails will be sent from: ", $sender, "\n";
 408         $prompting++;
 409 }
 410
 411 if (!@to) {
 412
 413
 414         while (1) {
 415                 $_ = $term->readline("Who should the emails be sent to? ", "");
 416                 last if defined $_;
 417                 print "\n";
 418         }
 419
 420         my $to = $_;
 421         push @to, split /,\s*/, $to;
 422         $prompting++;
 423 }
 424
 425 sub expand_aliases {
 426         my @cur = @_;
 427         my @last;
 428         do {
 429                 @last = @cur;
 430                 @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 431         } while (join(',',@cur) ne join(',',@last));
 432         return @cur;
 433 }
 434
 435 @to = expand_aliases(@to);
 436 @to = (map { sanitize_address($_) } @to);
 437 @initial_cc = expand_aliases(@initial_cc);
 438 @bcclist = expand_aliases(@bcclist);
 439
 440 if (!defined $initial_subject && $compose) {
 441         while (1) {
 442                 $_ = $term->readline("What subject should the initial email start with? ", $initial_subject);
 443                 last if defined $_;
 444                 print "\n";
 445         }
 446
 447         $initial_subject = $_;
 448         $prompting++;
 449 }
 450
 451 if ($thread && !defined $initial_reply_to && $prompting) {
 452         while (1) {
 453                 $_= $term->readline("Message-ID to be used as In-Reply-To for the first email? ", $initial_reply_to);
 454                 last if defined $_;
 455                 print "\n";
 456         }
 457
 458         $initial_reply_to = $_;
 459 }
 460 if (defined $initial_reply_to) {
 461         $initial_reply_to =~ s/^\s*<?//;
 462         $initial_reply_to =~ s/>?\s*$//;
 463         $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 464 }
 465
 466 if (!defined $smtp_server) {
 467         foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 468                 if (-x $_) {
 469                         $smtp_server = $_;
 470                         last;
 471                 }
 472         }
 473         $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 474 }
 475
 476 if ($compose) {
 477         # Note that this does not need to be secure, but we will make a small
 478         # effort to have it be unique
 479         open(C,">",$compose_filename)
 480                 or die "Failed to open for writing $compose_filename: $!";
 481         print C "From $sender # This line is ignored.\n";
 482         printf C "Subject: %s\n\n", $initial_subject;
 483         printf C <<EOT;
 484 GIT: Please enter your email below.
 485 GIT: Lines beginning in "GIT: " will be removed.
 486 GIT: Consider including an overall diffstat or table of contents
 487 GIT: for the patch you are writing.
 488
 489 EOT
 490         close(C);
 491
 492         my $editor = $ENV{GIT_EDITOR} || Git::config(@repo, "core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 493         system('sh', '-c', $editor.' "$@"', $editor, $compose_filename);
 494
 495         open(C2,">",$compose_filename . ".final")
 496                 or die "Failed to open $compose_filename.final : " . $!;
 497
 498         open(C,"<",$compose_filename)
 499                 or die "Failed to open $compose_filename : " . $!;
 500
 501         my $need_8bit_cte = file_has_nonascii($compose_filename);
 502         my $in_body = 0;
 503         while(<C>) {
 504                 next if m/^GIT: /;
 505                 if (!$in_body && /^\n$/) {
 506                         $in_body = 1;
 507                         if ($need_8bit_cte) {
 508                                 print C2 "MIME-Version: 1.0\n",
 509                                          "Content-Type: text/plain; ",
 510                                            "charset=utf-8\n",
 511                                          "Content-Transfer-Encoding: 8bit\n";
 512                         }
 513                 }
 514                 if (!$in_body && /^MIME-Version:/i) {
 515                         $need_8bit_cte = 0;
 516                 }
 517                 if (!$in_body && /^Subject: ?(.*)/i) {
 518                         my $subject = $1;
 519                         $_ = "Subject: " .
 520                                 ($subject =~ /[^[:ascii:]]/ ?
 521                                  quote_rfc2047($subject) :
 522                                  $subject) .
 523                                 "\n";
 524                 }
 525                 print C2 $_;
 526         }
 527         close(C);
 528         close(C2);
 529
 530         while (1) {
 531                 $_ = $term->readline("Send this email? (y|n) ");
 532                 last if defined $_;
 533                 print "\n";
 534         }
 535
 536         if (uc substr($_,0,1) ne 'Y') {
 537                 cleanup_compose_files();
 538                 exit(0);
 539         }
 540
 541         @files = ($compose_filename . ".final", @files);
 542 }
 543
 544 # Variables we set as part of the loop over files
 545 our ($message_id, %mail, $subject, $reply_to, $references, $message);
 546
 547 sub extract_valid_address {
 548         my $address = shift;
 549         my $local_part_regexp = '[^<>"\s@]+';
 550         my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 551
 552         # check for a local address:
 553         return $address if ($address =~ /^($local_part_regexp)$/);
 554
 555         $address =~ s/^\s*<(.*)>\s*$/$1/;
 556         if ($have_email_valid) {
 557                 return scalar Email::Valid->address($address);
 558         } else {
 559                 # less robust/correct than the monster regexp in Email::Valid,
 560                 # but still does a 99% job, and one less dependency
 561                 $address =~ /($local_part_regexp\@$domain_regexp)/;
 562                 return $1;
 563         }
 564 }
 565
 566 # Usually don't need to change anything below here.
 567
 568 # we make a "fake" message id by taking the current number
 569 # of seconds since the beginning of Unix time and tacking on
 570 # a random number to the end, in case we are called quicker than
 571 # 1 second since the last time we were called.
 572
 573 # We'll setup a template for the message id, using the "from" address:
 574
 575 my ($message_id_stamp, $message_id_serial);
 576 sub make_message_id
 577 {
 578         my $uniq;
 579         if (!defined $message_id_stamp) {
 580                 $message_id_stamp = sprintf("%s-%s", time, $$);
 581                 $message_id_serial = 0;
 582         }
 583         $message_id_serial++;
 584         $uniq = "$message_id_stamp-$message_id_serial";
 585
 586         my $du_part;
 587         for ($sender, $repocommitter, $repoauthor) {
 588                 $du_part = extract_valid_address(sanitize_address($_));
 589                 last if (defined $du_part and $du_part ne '');
 590         }
 591         if (not defined $du_part or $du_part eq '') {
 592                 use Sys::Hostname qw();
 593                 $du_part = 'user@' . Sys::Hostname::hostname();
 594         }
 595         my $message_id_template = "<%s-git-send-email-%s>";
 596         $message_id = sprintf($message_id_template, $uniq, $du_part);
 597         #print "new message id = $message_id\n"; # Was useful for debugging
 598 }
 599
 600
 601
 602 $time = time - scalar $#files;
 603
 604 sub unquote_rfc2047 {
 605         local ($_) = @_;
 606         my $encoding;
 607         if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 608                 $encoding = $1;
 609                 s/_/ /g;
 610                 s/=([0-9A-F]{2})/chr(hex($1))/eg;
 611         }
 612         return wantarray ? ($_, $encoding) : $_;
 613 }
 614
 615 sub quote_rfc2047 {
 616         local $_ = shift;
 617         my $encoding = shift || 'utf-8';
 618         s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 619         s/(.*)/=\?$encoding\?q\?$1\?=/;
 620         return $_;
 621 }
 622
 623 # use the simplest quoting being able to handle the recipient
 624 sub sanitize_address
 625 {
 626         my ($recipient) = @_;
 627         my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 628
 629         if (not $recipient_name) {
 630                 return "$recipient";
 631         }
 632
 633         # if recipient_name is already quoted, do nothing
 634         if ($recipient_name =~ /^(".*"|=\?utf-8\?q\?.*\?=)$/) {
 635                 return $recipient;
 636         }
 637
 638         # rfc2047 is needed if a non-ascii char is included
 639         if ($recipient_name =~ /[^[:ascii:]]/) {
 640                 $recipient_name = quote_rfc2047($recipient_name);
 641         }
 642
 643         # double quotes are needed if specials or CTLs are included
 644         elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 645                 $recipient_name =~ s/(["\\\r])/\\$1/g;
 646                 $recipient_name = "\"$recipient_name\"";
 647         }
 648
 649         return "$recipient_name $recipient_addr";
 650
 651 }
 652
 653 sub send_message
 654 {
 655         my @recipients = unique_email_list(@to);
 656         @cc = (grep { my $cc = extract_valid_address($_);
 657                       not grep { $cc eq $_ } @recipients
 658                     }
 659                map { sanitize_address($_) }
 660                @cc);
 661         my $to = join (",\n\t", @recipients);
 662         @recipients = unique_email_list(@recipients,@cc,@bcclist);
 663         @recipients = (map { extract_valid_address($_) } @recipients);
 664         my $date = format_2822_time($time++);
 665         my $gitversion = '@@GIT_VERSION@@';
 666         if ($gitversion =~ m/..GIT_VERSION../) {
 667             $gitversion = Git::version();
 668         }
 669
 670         my $cc = join(", ", unique_email_list(@cc));
 671         my $ccline = "";
 672         if ($cc ne '') {
 673                 $ccline = "\nCc: $cc";
 674         }
 675         my $sanitized_sender = sanitize_address($sender);
 676         make_message_id() unless defined($message_id);
 677
 678         my $header = "From: $sanitized_sender
 679 To: $to${ccline}
 680 Subject: $subject
 681 Date: $date
 682 Message-Id: $message_id
 683 X-Mailer: git-send-email $gitversion
 684 ";
 685         if ($thread && $reply_to) {
 686
 687                 $header .= "In-Reply-To: $reply_to\n";
 688                 $header .= "References: $references\n";
 689         }
 690         if (@xh) {
 691                 $header .= join("\n", @xh) . "\n";
 692         }
 693
 694         my @sendmail_parameters = ('-i', @recipients);
 695         my $raw_from = $sanitized_sender;
 696         $raw_from = $envelope_sender if (defined $envelope_sender);
 697         $raw_from = extract_valid_address($raw_from);
 698         unshift (@sendmail_parameters,
 699                         '-f', $raw_from) if(defined $envelope_sender);
 700
 701         if ($dry_run) {
 702                 # We don't want to send the email.
 703         } elsif ($smtp_server =~ m#^/#) {
 704                 my $pid = open my $sm, '|-';
 705                 defined $pid or die $!;
 706                 if (!$pid) {
 707                         exec($smtp_server, @sendmail_parameters) or die $!;
 708                 }
 709                 print $sm "$header\n$message";
 710                 close $sm or die $?;
 711         } else {
 712
 713                 if (!defined $smtp_server) {
 714                         die "The required SMTP server is not properly defined."
 715                 }
 716
 717                 if ($smtp_encryption eq 'ssl') {
 718                         $smtp_server_port ||= 465; # ssmtp
 719                         require Net::SMTP::SSL;
 720                         $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
 721                 }
 722                 else {
 723                         require Net::SMTP;
 724                         $smtp ||= Net::SMTP->new((defined $smtp_server_port)
 725                                                  ? "$smtp_server:$smtp_server_port"
 726                                                  : $smtp_server);
 727                         if ($smtp_encryption eq 'tls') {
 728                                 require Net::SMTP::SSL;
 729                                 $smtp->command('STARTTLS');
 730                                 $smtp->response();
 731                                 if ($smtp->code == 220) {
 732                                         $smtp = Net::SMTP::SSL->start_SSL($smtp)
 733                                                 or die "STARTTLS failed! ".$smtp->message;
 734                                         $smtp_encryption = '';
 735                                         # Send EHLO again to receive fresh
 736                                         # supported commands
 737                                         $smtp->hello();
 738                                 } else {
 739                                         die "Server does not support STARTTLS! ".$smtp->message;
 740                                 }
 741                         }
 742                 }
 743
 744                 if (!$smtp) {
 745                         die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
 746                 }
 747
 748                 if (defined $smtp_authuser) {
 749
 750                         if (!defined $smtp_authpass) {
 751
 752                                 system "stty -echo";
 753
 754                                 do {
 755                                         print "Password: ";
 756                                         $_ = <STDIN>;
 757                                         print "\n";
 758                                 } while (!defined $_);
 759
 760                                 chomp($smtp_authpass = $_);
 761
 762                                 system "stty echo";
 763                         }
 764
 765                         $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 766                 }
 767
 768                 $smtp->mail( $raw_from ) or die $smtp->message;
 769                 $smtp->to( @recipients ) or die $smtp->message;
 770                 $smtp->data or die $smtp->message;
 771                 $smtp->datasend("$header\n$message") or die $smtp->message;
 772                 $smtp->dataend() or die $smtp->message;
 773                 $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 774         }
 775         if ($quiet) {
 776                 printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 777         } else {
 778                 print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
 779                 if ($smtp_server !~ m#^/#) {
 780                         print "Server: $smtp_server\n";
 781                         print "MAIL FROM:<$raw_from>\n";
 782                         print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 783                 } else {
 784                         print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 785                 }
 786                 print $header, "\n";
 787                 if ($smtp) {
 788                         print "Result: ", $smtp->code, ' ',
 789                                 ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 790                 } else {
 791                         print "Result: OK\n";
 792                 }
 793         }
 794 }
 795
 796 $reply_to = $initial_reply_to;
 797 $references = $initial_reply_to || '';
 798 $subject = $initial_subject;
 799
 800 foreach my $t (@files) {
 801         open(F,"<",$t) or die "can't open file $t";
 802
 803         my $author = undef;
 804         my $author_encoding;
 805         my $has_content_type;
 806         my $body_encoding;
 807         @cc = @initial_cc;
 808         @xh = ();
 809         my $input_format = undef;
 810         my $header_done = 0;
 811         $message = "";
 812         while(<F>) {
 813                 if (!$header_done) {
 814                         if (/^From /) {
 815                                 $input_format = 'mbox';
 816                                 next;
 817                         }
 818                         chomp;
 819                         if (!defined $input_format && /^[-A-Za-z]+:\s/) {
 820                                 $input_format = 'mbox';
 821                         }
 822
 823                         if (defined $input_format && $input_format eq 'mbox') {
 824                                 if (/^Subject:\s+(.*)$/) {
 825                                         $subject = $1;
 826
 827                                 } elsif (/^(Cc|From):\s+(.*)$/) {
 828                                         if (unquote_rfc2047($2) eq $sender) {
 829                                                 next if ($suppress_cc{'self'});
 830                                         }
 831                                         elsif ($1 eq 'From') {
 832                                                 ($author, $author_encoding)
 833                                                   = unquote_rfc2047($2);
 834                                                 next if ($suppress_cc{'author'});
 835                                         } else {
 836                                                 next if ($suppress_cc{'cc'});
 837                                         }
 838                                         printf("(mbox) Adding cc: %s from line '%s'\n",
 839                                                 $2, $_) unless $quiet;
 840                                         push @cc, $2;
 841                                 }
 842                                 elsif (/^Content-type:/i) {
 843                                         $has_content_type = 1;
 844                                         if (/charset="?([^ "]+)/) {
 845                                                 $body_encoding = $1;
 846                                         }
 847                                         push @xh, $_;
 848                                 }
 849                                 elsif (/^Message-Id: (.*)/i) {
 850                                         $message_id = $1;
 851                                 }
 852                                 elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
 853                                         push @xh, $_;
 854                                 }
 855
 856                         } else {
 857                                 # In the traditional
 858                                 # "send lots of email" format,
 859                                 # line 1 = cc
 860                                 # line 2 = subject
 861                                 # So let's support that, too.
 862                                 $input_format = 'lots';
 863                                 if (@cc == 0 && !$suppress_cc{'cc'}) {
 864                                         printf("(non-mbox) Adding cc: %s from line '%s'\n",
 865                                                 $_, $_) unless $quiet;
 866
 867                                         push @cc, $_;
 868
 869                                 } elsif (!defined $subject) {
 870                                         $subject = $_;
 871                                 }
 872                         }
 873
 874                         # A whitespace line will terminate the headers
 875                         if (m/^\s*$/) {
 876                                 $header_done = 1;
 877                         }
 878                 } else {
 879                         $message .=  $_;
 880                         if (/^(Signed-off-by|Cc): (.*)$/i) {
 881                                 next if ($suppress_cc{'sob'});
 882                                 chomp;
 883                                 my $c = $2;
 884                                 chomp $c;
 885                                 next if ($c eq $sender and $suppress_cc{'self'});
 886                                 push @cc, $c;
 887                                 printf("(sob) Adding cc: %s from line '%s'\n",
 888                                         $c, $_) unless $quiet;
 889                         }
 890                 }
 891         }
 892         close F;
 893
 894         if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
 895                 open(F, "$cc_cmd $t |")
 896                         or die "(cc-cmd) Could not execute '$cc_cmd'";
 897                 while(<F>) {
 898                         my $c = $_;
 899                         $c =~ s/^\s*//g;
 900                         $c =~ s/\n$//g;
 901                         next if ($c eq $sender and $suppress_from);
 902                         push @cc, $c;
 903                         printf("(cc-cmd) Adding cc: %s from: '%s'\n",
 904                                 $c, $cc_cmd) unless $quiet;
 905                 }
 906                 close F
 907                         or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
 908         }
 909
 910         if (defined $author) {
 911                 $message = "From: $author\n\n$message";
 912                 if (defined $author_encoding) {
 913                         if ($has_content_type) {
 914                                 if ($body_encoding eq $author_encoding) {
 915                                         # ok, we already have the right encoding
 916                                 }
 917                                 else {
 918                                         # uh oh, we should re-encode
 919                                 }
 920                         }
 921                         else {
 922                                 push @xh,
 923                                   'MIME-Version: 1.0',
 924                                   "Content-Type: text/plain; charset=$author_encoding",
 925                                   'Content-Transfer-Encoding: 8bit';
 926                         }
 927                 }
 928         }
 929
 930         send_message();
 931
 932         # set up for the next message
 933         if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
 934                 $reply_to = $message_id;
 935                 if (length $references > 0) {
 936                         $references .= "\n $message_id";
 937                 } else {
 938                         $references = "$message_id";
 939                 }
 940         }
 941         $message_id = undef;
 942 }
 943
 944 if ($compose) {
 945         cleanup_compose_files();
 946 }
 947
 948 sub cleanup_compose_files() {
 949         unlink($compose_filename, $compose_filename . ".final");
 950
 951 }
 952
 953 $smtp->quit if $smtp;
 954
 955 sub unique_email_list(@) {
 956         my %seen;
 957         my @emails;
 958
 959         foreach my $entry (@_) {
 960                 if (my $clean = extract_valid_address($entry)) {
 961                         $seen{$clean} ||= 0;
 962                         next if $seen{$clean}++;
 963                         push @emails, $entry;
 964                 } else {
 965                         print STDERR "W: unable to extract a valid address",
 966                                         " from: $entry\n";
 967                 }
 968         }
 969         return @emails;
 970 }
 971
 972 sub validate_patch {
 973         my $fn = shift;
 974         open(my $fh, '<', $fn)
 975                 or die "unable to open $fn: $!\n";
 976         while (my $line = <$fh>) {
 977                 if (length($line) > 998) {
 978                         return "$.: patch contains a line longer than 998 characters";
 979                 }
 980         }
 981         return undef;
 982 }
 983
 984 sub file_has_nonascii {
 985         my $fn = shift;
 986         open(my $fh, '<', $fn)
 987                 or die "unable to open $fn: $!\n";
 988         while (my $line = <$fh>) {
 989                 return 1 if $line =~ /[^[:ascii:]]/;
 990         }
 991         return 0;
 992 }