git-send-email.perlon commit Merge branch 'jp/send-email-to-cmd' (9b1054d)
   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 Text::ParseWords;
  24use Data::Dumper;
  25use Term::ANSIColor;
  26use File::Temp qw/ tempdir tempfile /;
  27use File::Spec::Functions qw(catfile);
  28use Error qw(:try);
  29use Git;
  30
  31Getopt::Long::Configure qw/ pass_through /;
  32
  33package FakeTerm;
  34sub new {
  35        my ($class, $reason) = @_;
  36        return bless \$reason, shift;
  37}
  38sub readline {
  39        my $self = shift;
  40        die "Cannot use readline on FakeTerm: $$self";
  41}
  42package main;
  43
  44
  45sub usage {
  46        print <<EOT;
  47git send-email [options] <file | directory | rev-list options >
  48
  49  Composing:
  50    --from                  <str>  * Email From:
  51    --[no-]to               <str>  * Email To:
  52    --[no-]cc               <str>  * Email Cc:
  53    --[no-]bcc              <str>  * Email Bcc:
  54    --subject               <str>  * Email "Subject:"
  55    --in-reply-to           <str>  * Email "In-Reply-To:"
  56    --annotate                     * Review each patch that will be sent in an editor.
  57    --compose                      * Open an editor for introduction.
  58    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  59
  60  Sending:
  61    --envelope-sender       <str>  * Email envelope sender.
  62    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  63                                     is optional. Default 'localhost'.
  64    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  65    --smtp-server-port      <int>  * Outgoing SMTP server port.
  66    --smtp-user             <str>  * Username for SMTP-AUTH.
  67    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  68    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  69    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  70    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  71    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  72
  73  Automating:
  74    --identity              <str>  * Use the sendemail.<id> options.
  75    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  76    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  77    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  78    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  79    --[no-]suppress-from           * Send to self. Default off.
  80    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
  81    --[no-]thread                  * Use In-Reply-To: field. Default on.
  82
  83  Administering:
  84    --confirm               <str>  * Confirm recipients before sending;
  85                                     auto, cc, compose, always, or never.
  86    --quiet                        * Output one line of info per email.
  87    --dry-run                      * Don't actually send the emails.
  88    --[no-]validate                * Perform patch sanity checks. Default on.
  89    --[no-]format-patch            * understand any non optional arguments as
  90                                     `git format-patch` ones.
  91    --force                        * Send even if safety checks would prevent it.
  92
  93EOT
  94        exit(1);
  95}
  96
  97# most mail servers generate the Date: header, but not all...
  98sub format_2822_time {
  99        my ($time) = @_;
 100        my @localtm = localtime($time);
 101        my @gmttm = gmtime($time);
 102        my $localmin = $localtm[1] + $localtm[2] * 60;
 103        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 104        if ($localtm[0] != $gmttm[0]) {
 105                die "local zone differs from GMT by a non-minute interval\n";
 106        }
 107        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 108                $localmin += 1440;
 109        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 110                $localmin -= 1440;
 111        } elsif ($gmttm[6] != $localtm[6]) {
 112                die "local time offset greater than or equal to 24 hours\n";
 113        }
 114        my $offset = $localmin - $gmtmin;
 115        my $offhour = $offset / 60;
 116        my $offmin = abs($offset % 60);
 117        if (abs($offhour) >= 24) {
 118                die ("local time offset greater than or equal to 24 hours\n");
 119        }
 120
 121        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 122                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 123                       $localtm[3],
 124                       qw(Jan Feb Mar Apr May Jun
 125                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 126                       $localtm[5]+1900,
 127                       $localtm[2],
 128                       $localtm[1],
 129                       $localtm[0],
 130                       ($offset >= 0) ? '+' : '-',
 131                       abs($offhour),
 132                       $offmin,
 133                       );
 134}
 135
 136my $have_email_valid = eval { require Email::Valid; 1 };
 137my $have_mail_address = eval { require Mail::Address; 1 };
 138my $smtp;
 139my $auth;
 140
 141sub unique_email_list(@);
 142sub cleanup_compose_files();
 143
 144# Variables we fill in automatically, or via prompting:
 145my (@to,$no_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 146        $initial_reply_to,$initial_subject,@files,
 147        $author,$sender,$smtp_authpass,$annotate,$compose,$time);
 148
 149my $envelope_sender;
 150
 151# Example reply to:
 152#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 153
 154my $repo = eval { Git->repository() };
 155my @repo = $repo ? ($repo) : ();
 156my $term = eval {
 157        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 158                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 159                : new Term::ReadLine 'git-send-email';
 160};
 161if ($@) {
 162        $term = new FakeTerm "$@: going non-interactive";
 163}
 164
 165# Behavior modification variables
 166my ($quiet, $dry_run) = (0, 0);
 167my $format_patch;
 168my $compose_filename;
 169my $force = 0;
 170
 171# Handle interactive edition of files.
 172my $multiedit;
 173my $editor;
 174
 175sub do_edit {
 176        if (!defined($editor)) {
 177                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 178        }
 179        if (defined($multiedit) && !$multiedit) {
 180                map {
 181                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 182                        if (($? & 127) || ($? >> 8)) {
 183                                die("the editor exited uncleanly, aborting everything");
 184                        }
 185                } @_;
 186        } else {
 187                system('sh', '-c', $editor.' "$@"', $editor, @_);
 188                if (($? & 127) || ($? >> 8)) {
 189                        die("the editor exited uncleanly, aborting everything");
 190                }
 191        }
 192}
 193
 194# Variables with corresponding config settings
 195my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 196my ($to_cmd, $cc_cmd);
 197my ($smtp_server, $smtp_server_port, @smtp_server_options);
 198my ($smtp_authuser, $smtp_encryption);
 199my ($identity, $aliasfiletype, @alias_files, $smtp_domain);
 200my ($validate, $confirm);
 201my (@suppress_cc);
 202my ($auto_8bit_encoding);
 203
 204my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 205
 206my $not_set_by_user = "true but not set by the user";
 207
 208my %config_bool_settings = (
 209    "thread" => [\$thread, 1],
 210    "chainreplyto" => [\$chain_reply_to, $not_set_by_user],
 211    "suppressfrom" => [\$suppress_from, undef],
 212    "signedoffbycc" => [\$signed_off_by_cc, undef],
 213    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 214    "validate" => [\$validate, 1],
 215);
 216
 217my %config_settings = (
 218    "smtpserver" => \$smtp_server,
 219    "smtpserverport" => \$smtp_server_port,
 220    "smtpserveroption" => \@smtp_server_options,
 221    "smtpuser" => \$smtp_authuser,
 222    "smtppass" => \$smtp_authpass,
 223    "smtpdomain" => \$smtp_domain,
 224    "to" => \@to,
 225    "tocmd" => \$to_cmd,
 226    "cc" => \@initial_cc,
 227    "cccmd" => \$cc_cmd,
 228    "aliasfiletype" => \$aliasfiletype,
 229    "bcc" => \@bcclist,
 230    "aliasesfile" => \@alias_files,
 231    "suppresscc" => \@suppress_cc,
 232    "envelopesender" => \$envelope_sender,
 233    "multiedit" => \$multiedit,
 234    "confirm"   => \$confirm,
 235    "from" => \$sender,
 236    "assume8bitencoding" => \$auto_8bit_encoding,
 237);
 238
 239# Help users prepare for 1.7.0
 240sub chain_reply_to {
 241        if (defined $chain_reply_to &&
 242            $chain_reply_to eq $not_set_by_user) {
 243                print STDERR
 244                    "In git 1.7.0, the default has changed to --no-chain-reply-to\n" .
 245                    "Set sendemail.chainreplyto configuration variable to true if\n" .
 246                    "you want to keep --chain-reply-to as your default.\n";
 247                $chain_reply_to = 0;
 248        }
 249        return $chain_reply_to;
 250}
 251
 252# Handle Uncouth Termination
 253sub signal_handler {
 254
 255        # Make text normal
 256        print color("reset"), "\n";
 257
 258        # SMTP password masked
 259        system "stty echo";
 260
 261        # tmp files from --compose
 262        if (defined $compose_filename) {
 263                if (-e $compose_filename) {
 264                        print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
 265                }
 266                if (-e ($compose_filename . ".final")) {
 267                        print "'$compose_filename.final' contains the composed email.\n"
 268                }
 269        }
 270
 271        exit;
 272};
 273
 274$SIG{TERM} = \&signal_handler;
 275$SIG{INT}  = \&signal_handler;
 276
 277# Begin by accumulating all the variables (defined above), that we will end up
 278# needing, first, from the command line:
 279
 280my $rc = GetOptions("sender|from=s" => \$sender,
 281                    "in-reply-to=s" => \$initial_reply_to,
 282                    "subject=s" => \$initial_subject,
 283                    "to=s" => \@to,
 284                    "to-cmd=s" => \$to_cmd,
 285                    "no-to" => \$no_to,
 286                    "cc=s" => \@initial_cc,
 287                    "no-cc" => \$no_cc,
 288                    "bcc=s" => \@bcclist,
 289                    "no-bcc" => \$no_bcc,
 290                    "chain-reply-to!" => \$chain_reply_to,
 291                    "smtp-server=s" => \$smtp_server,
 292                    "smtp-server-option=s" => \@smtp_server_options,
 293                    "smtp-server-port=s" => \$smtp_server_port,
 294                    "smtp-user=s" => \$smtp_authuser,
 295                    "smtp-pass:s" => \$smtp_authpass,
 296                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 297                    "smtp-encryption=s" => \$smtp_encryption,
 298                    "smtp-debug:i" => \$debug_net_smtp,
 299                    "smtp-domain:s" => \$smtp_domain,
 300                    "identity=s" => \$identity,
 301                    "annotate" => \$annotate,
 302                    "compose" => \$compose,
 303                    "quiet" => \$quiet,
 304                    "cc-cmd=s" => \$cc_cmd,
 305                    "suppress-from!" => \$suppress_from,
 306                    "suppress-cc=s" => \@suppress_cc,
 307                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 308                    "confirm=s" => \$confirm,
 309                    "dry-run" => \$dry_run,
 310                    "envelope-sender=s" => \$envelope_sender,
 311                    "thread!" => \$thread,
 312                    "validate!" => \$validate,
 313                    "format-patch!" => \$format_patch,
 314                    "8bit-encoding=s" => \$auto_8bit_encoding,
 315                    "force" => \$force,
 316         );
 317
 318unless ($rc) {
 319    usage();
 320}
 321
 322die "Cannot run git format-patch from outside a repository\n"
 323        if $format_patch and not $repo;
 324
 325# Now, let's fill any that aren't set in with defaults:
 326
 327sub read_config {
 328        my ($prefix) = @_;
 329
 330        foreach my $setting (keys %config_bool_settings) {
 331                my $target = $config_bool_settings{$setting}->[0];
 332                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 333        }
 334
 335        foreach my $setting (keys %config_settings) {
 336                my $target = $config_settings{$setting};
 337                next if $setting eq "to" and defined $no_to;
 338                next if $setting eq "cc" and defined $no_cc;
 339                next if $setting eq "bcc" and defined $no_bcc;
 340                if (ref($target) eq "ARRAY") {
 341                        unless (@$target) {
 342                                my @values = Git::config(@repo, "$prefix.$setting");
 343                                @$target = @values if (@values && defined $values[0]);
 344                        }
 345                }
 346                else {
 347                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 348                }
 349        }
 350
 351        if (!defined $smtp_encryption) {
 352                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 353                if (defined $enc) {
 354                        $smtp_encryption = $enc;
 355                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 356                        $smtp_encryption = 'ssl';
 357                }
 358        }
 359}
 360
 361# read configuration from [sendemail "$identity"], fall back on [sendemail]
 362$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 363read_config("sendemail.$identity") if (defined $identity);
 364read_config("sendemail");
 365
 366# fall back on builtin bool defaults
 367foreach my $setting (values %config_bool_settings) {
 368        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 369}
 370
 371# 'default' encryption is none -- this only prevents a warning
 372$smtp_encryption = '' unless (defined $smtp_encryption);
 373
 374# Set CC suppressions
 375my(%suppress_cc);
 376if (@suppress_cc) {
 377        foreach my $entry (@suppress_cc) {
 378                die "Unknown --suppress-cc field: '$entry'\n"
 379                        unless $entry =~ /^(all|cccmd|cc|author|self|sob|body|bodycc)$/;
 380                $suppress_cc{$entry} = 1;
 381        }
 382}
 383
 384if ($suppress_cc{'all'}) {
 385        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 386                $suppress_cc{$entry} = 1;
 387        }
 388        delete $suppress_cc{'all'};
 389}
 390
 391# If explicit old-style ones are specified, they trump --suppress-cc.
 392$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 393$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 394
 395if ($suppress_cc{'body'}) {
 396        foreach my $entry (qw (sob bodycc)) {
 397                $suppress_cc{$entry} = 1;
 398        }
 399        delete $suppress_cc{'body'};
 400}
 401
 402# Set confirm's default value
 403my $confirm_unconfigured = !defined $confirm;
 404if ($confirm_unconfigured) {
 405        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 406};
 407die "Unknown --confirm setting: '$confirm'\n"
 408        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 409
 410# Debugging, print out the suppressions.
 411if (0) {
 412        print "suppressions:\n";
 413        foreach my $entry (keys %suppress_cc) {
 414                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 415        }
 416}
 417
 418my ($repoauthor, $repocommitter);
 419($repoauthor) = Git::ident_person(@repo, 'author');
 420($repocommitter) = Git::ident_person(@repo, 'committer');
 421
 422# Verify the user input
 423
 424foreach my $entry (@to) {
 425        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 426}
 427
 428foreach my $entry (@initial_cc) {
 429        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 430}
 431
 432foreach my $entry (@bcclist) {
 433        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 434}
 435
 436sub parse_address_line {
 437        if ($have_mail_address) {
 438                return map { $_->format } Mail::Address->parse($_[0]);
 439        } else {
 440                return split_addrs($_[0]);
 441        }
 442}
 443
 444sub split_addrs {
 445        return quotewords('\s*,\s*', 1, @_);
 446}
 447
 448my %aliases;
 449my %parse_alias = (
 450        # multiline formats can be supported in the future
 451        mutt => sub { my $fh = shift; while (<$fh>) {
 452                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 453                        my ($alias, $addr) = ($1, $2);
 454                        $addr =~ s/#.*$//; # mutt allows # comments
 455                         # commas delimit multiple addresses
 456                        $aliases{$alias} = [ split_addrs($addr) ];
 457                }}},
 458        mailrc => sub { my $fh = shift; while (<$fh>) {
 459                if (/^alias\s+(\S+)\s+(.*)$/) {
 460                        # spaces delimit multiple addresses
 461                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 462                }}},
 463        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 464                for (my $x = ''; defined($x); $x = $_) {
 465                        chomp $x;
 466                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 467                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 468                        $aliases{$1} = [ split_addrs($2) ];
 469                }},
 470        elm => sub  { my $fh = shift;
 471                      while (<$fh>) {
 472                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 473                              my ($alias, $addr) = ($1, $2);
 474                               $aliases{$alias} = [ split_addrs($addr) ];
 475                          }
 476                      } },
 477
 478        gnus => sub { my $fh = shift; while (<$fh>) {
 479                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 480                        $aliases{$1} = [ $2 ];
 481                }}}
 482);
 483
 484if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 485        foreach my $file (@alias_files) {
 486                open my $fh, '<', $file or die "opening $file: $!\n";
 487                $parse_alias{$aliasfiletype}->($fh);
 488                close $fh;
 489        }
 490}
 491
 492($sender) = expand_aliases($sender) if defined $sender;
 493
 494# returns 1 if the conflict must be solved using it as a format-patch argument
 495sub check_file_rev_conflict($) {
 496        return unless $repo;
 497        my $f = shift;
 498        try {
 499                $repo->command('rev-parse', '--verify', '--quiet', $f);
 500                if (defined($format_patch)) {
 501                        return $format_patch;
 502                }
 503                die(<<EOF);
 504File '$f' exists but it could also be the range of commits
 505to produce patches for.  Please disambiguate by...
 506
 507    * Saying "./$f" if you mean a file; or
 508    * Giving --format-patch option if you mean a range.
 509EOF
 510        } catch Git::Error::Command with {
 511                return 0;
 512        }
 513}
 514
 515# Now that all the defaults are set, process the rest of the command line
 516# arguments and collect up the files that need to be processed.
 517my @rev_list_opts;
 518while (defined(my $f = shift @ARGV)) {
 519        if ($f eq "--") {
 520                push @rev_list_opts, "--", @ARGV;
 521                @ARGV = ();
 522        } elsif (-d $f and !check_file_rev_conflict($f)) {
 523                opendir(DH,$f)
 524                        or die "Failed to opendir $f: $!";
 525
 526                push @files, grep { -f $_ } map { catfile($f, $_) }
 527                                sort readdir(DH);
 528                closedir(DH);
 529        } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
 530                push @files, $f;
 531        } else {
 532                push @rev_list_opts, $f;
 533        }
 534}
 535
 536if (@rev_list_opts) {
 537        die "Cannot run git format-patch from outside a repository\n"
 538                unless $repo;
 539        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 540}
 541
 542if ($validate) {
 543        foreach my $f (@files) {
 544                unless (-p $f) {
 545                        my $error = validate_patch($f);
 546                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 547                }
 548        }
 549}
 550
 551if (@files) {
 552        unless ($quiet) {
 553                print $_,"\n" for (@files);
 554        }
 555} else {
 556        print STDERR "\nNo patch files specified!\n\n";
 557        usage();
 558}
 559
 560sub get_patch_subject($) {
 561        my $fn = shift;
 562        open (my $fh, '<', $fn);
 563        while (my $line = <$fh>) {
 564                next unless ($line =~ /^Subject: (.*)$/);
 565                close $fh;
 566                return "GIT: $1\n";
 567        }
 568        close $fh;
 569        die "No subject line in $fn ?";
 570}
 571
 572if ($compose) {
 573        # Note that this does not need to be secure, but we will make a small
 574        # effort to have it be unique
 575        $compose_filename = ($repo ?
 576                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 577                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 578        open(C,">",$compose_filename)
 579                or die "Failed to open for writing $compose_filename: $!";
 580
 581
 582        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 583        my $tpl_subject = $initial_subject || '';
 584        my $tpl_reply_to = $initial_reply_to || '';
 585
 586        print C <<EOT;
 587From $tpl_sender # This line is ignored.
 588GIT: Lines beginning in "GIT:" will be removed.
 589GIT: Consider including an overall diffstat or table of contents
 590GIT: for the patch you are writing.
 591GIT:
 592GIT: Clear the body content if you don't wish to send a summary.
 593From: $tpl_sender
 594Subject: $tpl_subject
 595In-Reply-To: $tpl_reply_to
 596
 597EOT
 598        for my $f (@files) {
 599                print C get_patch_subject($f);
 600        }
 601        close(C);
 602
 603        if ($annotate) {
 604                do_edit($compose_filename, @files);
 605        } else {
 606                do_edit($compose_filename);
 607        }
 608
 609        open(C2,">",$compose_filename . ".final")
 610                or die "Failed to open $compose_filename.final : " . $!;
 611
 612        open(C,"<",$compose_filename)
 613                or die "Failed to open $compose_filename : " . $!;
 614
 615        my $need_8bit_cte = file_has_nonascii($compose_filename);
 616        my $in_body = 0;
 617        my $summary_empty = 1;
 618        while(<C>) {
 619                next if m/^GIT:/;
 620                if ($in_body) {
 621                        $summary_empty = 0 unless (/^\n$/);
 622                } elsif (/^\n$/) {
 623                        $in_body = 1;
 624                        if ($need_8bit_cte) {
 625                                print C2 "MIME-Version: 1.0\n",
 626                                         "Content-Type: text/plain; ",
 627                                           "charset=UTF-8\n",
 628                                         "Content-Transfer-Encoding: 8bit\n";
 629                        }
 630                } elsif (/^MIME-Version:/i) {
 631                        $need_8bit_cte = 0;
 632                } elsif (/^Subject:\s*(.+)\s*$/i) {
 633                        $initial_subject = $1;
 634                        my $subject = $initial_subject;
 635                        $_ = "Subject: " .
 636                                ($subject =~ /[^[:ascii:]]/ ?
 637                                 quote_rfc2047($subject) :
 638                                 $subject) .
 639                                "\n";
 640                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 641                        $initial_reply_to = $1;
 642                        next;
 643                } elsif (/^From:\s*(.+)\s*$/i) {
 644                        $sender = $1;
 645                        next;
 646                } elsif (/^(?:To|Cc|Bcc):/i) {
 647                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 648                        next;
 649                }
 650                print C2 $_;
 651        }
 652        close(C);
 653        close(C2);
 654
 655        if ($summary_empty) {
 656                print "Summary email is empty, skipping it\n";
 657                $compose = -1;
 658        }
 659} elsif ($annotate) {
 660        do_edit(@files);
 661}
 662
 663sub ask {
 664        my ($prompt, %arg) = @_;
 665        my $valid_re = $arg{valid_re};
 666        my $default = $arg{default};
 667        my $resp;
 668        my $i = 0;
 669        return defined $default ? $default : undef
 670                unless defined $term->IN and defined fileno($term->IN) and
 671                       defined $term->OUT and defined fileno($term->OUT);
 672        while ($i++ < 10) {
 673                $resp = $term->readline($prompt);
 674                if (!defined $resp) { # EOF
 675                        print "\n";
 676                        return defined $default ? $default : undef;
 677                }
 678                if ($resp eq '' and defined $default) {
 679                        return $default;
 680                }
 681                if (!defined $valid_re or $resp =~ /$valid_re/) {
 682                        return $resp;
 683                }
 684        }
 685        return undef;
 686}
 687
 688my %broken_encoding;
 689
 690sub file_declares_8bit_cte($) {
 691        my $fn = shift;
 692        open (my $fh, '<', $fn);
 693        while (my $line = <$fh>) {
 694                last if ($line =~ /^$/);
 695                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 696        }
 697        close $fh;
 698        return 0;
 699}
 700
 701foreach my $f (@files) {
 702        next unless (body_or_subject_has_nonascii($f)
 703                     && !file_declares_8bit_cte($f));
 704        $broken_encoding{$f} = 1;
 705}
 706
 707if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 708        print "The following files are 8bit, but do not declare " .
 709                "a Content-Transfer-Encoding.\n";
 710        foreach my $f (sort keys %broken_encoding) {
 711                print "    $f\n";
 712        }
 713        $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
 714                                  default => "UTF-8");
 715}
 716
 717if (!$force) {
 718        for my $f (@files) {
 719                if (get_patch_subject($f) =~ /\*\*\* SUBJECT HERE \*\*\*/) {
 720                        die "Refusing to send because the patch\n\t$f\n"
 721                                . "has the template subject '*** SUBJECT HERE ***'. "
 722                                . "Pass --force if you really want to send.\n";
 723                }
 724        }
 725}
 726
 727my $prompting = 0;
 728if (!defined $sender) {
 729        $sender = $repoauthor || $repocommitter || '';
 730        $sender = ask("Who should the emails appear to be from? [$sender] ",
 731                      default => $sender);
 732        print "Emails will be sent from: ", $sender, "\n";
 733        $prompting++;
 734}
 735
 736if (!@to && !defined $to_cmd) {
 737        my $to = ask("Who should the emails be sent to? ");
 738        push @to, parse_address_line($to) if defined $to; # sanitized/validated later
 739        $prompting++;
 740}
 741
 742sub expand_aliases {
 743        return map { expand_one_alias($_) } @_;
 744}
 745
 746my %EXPANDED_ALIASES;
 747sub expand_one_alias {
 748        my $alias = shift;
 749        if ($EXPANDED_ALIASES{$alias}) {
 750                die "fatal: alias '$alias' expands to itself\n";
 751        }
 752        local $EXPANDED_ALIASES{$alias} = 1;
 753        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 754}
 755
 756@to = expand_aliases(@to);
 757@to = (map { sanitize_address($_) } @to);
 758@initial_cc = expand_aliases(@initial_cc);
 759@bcclist = expand_aliases(@bcclist);
 760
 761if ($thread && !defined $initial_reply_to && $prompting) {
 762        $initial_reply_to = ask(
 763                "Message-ID to be used as In-Reply-To for the first email? ");
 764}
 765if (defined $initial_reply_to) {
 766        $initial_reply_to =~ s/^\s*<?//;
 767        $initial_reply_to =~ s/>?\s*$//;
 768        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 769}
 770
 771if (!defined $smtp_server) {
 772        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 773                if (-x $_) {
 774                        $smtp_server = $_;
 775                        last;
 776                }
 777        }
 778        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 779}
 780
 781if ($compose && $compose > 0) {
 782        @files = ($compose_filename . ".final", @files);
 783}
 784
 785# Variables we set as part of the loop over files
 786our ($message_id, %mail, $subject, $reply_to, $references, $message,
 787        $needs_confirm, $message_num, $ask_default);
 788
 789sub extract_valid_address {
 790        my $address = shift;
 791        my $local_part_regexp = '[^<>"\s@]+';
 792        my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 793
 794        # check for a local address:
 795        return $address if ($address =~ /^($local_part_regexp)$/);
 796
 797        $address =~ s/^\s*<(.*)>\s*$/$1/;
 798        if ($have_email_valid) {
 799                return scalar Email::Valid->address($address);
 800        } else {
 801                # less robust/correct than the monster regexp in Email::Valid,
 802                # but still does a 99% job, and one less dependency
 803                $address =~ /($local_part_regexp\@$domain_regexp)/;
 804                return $1;
 805        }
 806}
 807
 808# Usually don't need to change anything below here.
 809
 810# we make a "fake" message id by taking the current number
 811# of seconds since the beginning of Unix time and tacking on
 812# a random number to the end, in case we are called quicker than
 813# 1 second since the last time we were called.
 814
 815# We'll setup a template for the message id, using the "from" address:
 816
 817my ($message_id_stamp, $message_id_serial);
 818sub make_message_id {
 819        my $uniq;
 820        if (!defined $message_id_stamp) {
 821                $message_id_stamp = sprintf("%s-%s", time, $$);
 822                $message_id_serial = 0;
 823        }
 824        $message_id_serial++;
 825        $uniq = "$message_id_stamp-$message_id_serial";
 826
 827        my $du_part;
 828        for ($sender, $repocommitter, $repoauthor) {
 829                $du_part = extract_valid_address(sanitize_address($_));
 830                last if (defined $du_part and $du_part ne '');
 831        }
 832        if (not defined $du_part or $du_part eq '') {
 833                use Sys::Hostname qw();
 834                $du_part = 'user@' . Sys::Hostname::hostname();
 835        }
 836        my $message_id_template = "<%s-git-send-email-%s>";
 837        $message_id = sprintf($message_id_template, $uniq, $du_part);
 838        #print "new message id = $message_id\n"; # Was useful for debugging
 839}
 840
 841
 842
 843$time = time - scalar $#files;
 844
 845sub unquote_rfc2047 {
 846        local ($_) = @_;
 847        my $encoding;
 848        if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 849                $encoding = $1;
 850                s/_/ /g;
 851                s/=([0-9A-F]{2})/chr(hex($1))/eg;
 852        }
 853        return wantarray ? ($_, $encoding) : $_;
 854}
 855
 856sub quote_rfc2047 {
 857        local $_ = shift;
 858        my $encoding = shift || 'UTF-8';
 859        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 860        s/(.*)/=\?$encoding\?q\?$1\?=/;
 861        return $_;
 862}
 863
 864sub is_rfc2047_quoted {
 865        my $s = shift;
 866        my $token = '[^][()<>@,;:"\/?.= \000-\037\177-\377]+';
 867        my $encoded_text = '[!->@-~]+';
 868        length($s) <= 75 &&
 869        $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
 870}
 871
 872# use the simplest quoting being able to handle the recipient
 873sub sanitize_address {
 874        my ($recipient) = @_;
 875        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 876
 877        if (not $recipient_name) {
 878                return "$recipient";
 879        }
 880
 881        # if recipient_name is already quoted, do nothing
 882        if (is_rfc2047_quoted($recipient_name)) {
 883                return $recipient;
 884        }
 885
 886        # rfc2047 is needed if a non-ascii char is included
 887        if ($recipient_name =~ /[^[:ascii:]]/) {
 888                $recipient_name =~ s/^"(.*)"$/$1/;
 889                $recipient_name = quote_rfc2047($recipient_name);
 890        }
 891
 892        # double quotes are needed if specials or CTLs are included
 893        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 894                $recipient_name =~ s/(["\\\r])/\\$1/g;
 895                $recipient_name = "\"$recipient_name\"";
 896        }
 897
 898        return "$recipient_name $recipient_addr";
 899
 900}
 901
 902# Returns the local Fully Qualified Domain Name (FQDN) if available.
 903#
 904# Tightly configured MTAa require that a caller sends a real DNS
 905# domain name that corresponds the IP address in the HELO/EHLO
 906# handshake. This is used to verify the connection and prevent
 907# spammers from trying to hide their identity. If the DNS and IP don't
 908# match, the receiveing MTA may deny the connection.
 909#
 910# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
 911#
 912# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
 913# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
 914#
 915# This maildomain*() code is based on ideas in Perl library Test::Reporter
 916# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
 917
 918sub valid_fqdn {
 919        my $domain = shift;
 920        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
 921}
 922
 923sub maildomain_net {
 924        my $maildomain;
 925
 926        if (eval { require Net::Domain; 1 }) {
 927                my $domain = Net::Domain::domainname();
 928                $maildomain = $domain if valid_fqdn($domain);
 929        }
 930
 931        return $maildomain;
 932}
 933
 934sub maildomain_mta {
 935        my $maildomain;
 936
 937        if (eval { require Net::SMTP; 1 }) {
 938                for my $host (qw(mailhost localhost)) {
 939                        my $smtp = Net::SMTP->new($host);
 940                        if (defined $smtp) {
 941                                my $domain = $smtp->domain;
 942                                $smtp->quit;
 943
 944                                $maildomain = $domain if valid_fqdn($domain);
 945
 946                                last if $maildomain;
 947                        }
 948                }
 949        }
 950
 951        return $maildomain;
 952}
 953
 954sub maildomain {
 955        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
 956}
 957
 958# Returns 1 if the message was sent, and 0 otherwise.
 959# In actuality, the whole program dies when there
 960# is an error sending a message.
 961
 962sub send_message {
 963        my @recipients = unique_email_list(@to);
 964        @cc = (grep { my $cc = extract_valid_address($_);
 965                      not grep { $cc eq $_ } @recipients
 966                    }
 967               map { sanitize_address($_) }
 968               @cc);
 969        my $to = join (",\n\t", @recipients);
 970        @recipients = unique_email_list(@recipients,@cc,@bcclist);
 971        @recipients = (map { extract_valid_address($_) } @recipients);
 972        my $date = format_2822_time($time++);
 973        my $gitversion = '@@GIT_VERSION@@';
 974        if ($gitversion =~ m/..GIT_VERSION../) {
 975            $gitversion = Git::version();
 976        }
 977
 978        my $cc = join(",\n\t", unique_email_list(@cc));
 979        my $ccline = "";
 980        if ($cc ne '') {
 981                $ccline = "\nCc: $cc";
 982        }
 983        my $sanitized_sender = sanitize_address($sender);
 984        make_message_id() unless defined($message_id);
 985
 986        my $header = "From: $sanitized_sender
 987To: $to${ccline}
 988Subject: $subject
 989Date: $date
 990Message-Id: $message_id
 991X-Mailer: git-send-email $gitversion
 992";
 993        if ($reply_to) {
 994
 995                $header .= "In-Reply-To: $reply_to\n";
 996                $header .= "References: $references\n";
 997        }
 998        if (@xh) {
 999                $header .= join("\n", @xh) . "\n";
1000        }
1001
1002        my @sendmail_parameters = ('-i', @recipients);
1003        my $raw_from = $sanitized_sender;
1004        if (defined $envelope_sender && $envelope_sender ne "auto") {
1005                $raw_from = $envelope_sender;
1006        }
1007        $raw_from = extract_valid_address($raw_from);
1008        unshift (@sendmail_parameters,
1009                        '-f', $raw_from) if(defined $envelope_sender);
1010
1011        if ($needs_confirm && !$dry_run) {
1012                print "\n$header\n";
1013                if ($needs_confirm eq "inform") {
1014                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1015                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1016                        print "    The Cc list above has been expanded by additional\n";
1017                        print "    addresses found in the patch commit message. By default\n";
1018                        print "    send-email prompts before sending whenever this occurs.\n";
1019                        print "    This behavior is controlled by the sendemail.confirm\n";
1020                        print "    configuration setting.\n";
1021                        print "\n";
1022                        print "    For additional information, run 'git send-email --help'.\n";
1023                        print "    To retain the current behavior, but squelch this message,\n";
1024                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
1025                }
1026                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
1027                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1028                         default => $ask_default);
1029                die "Send this email reply required" unless defined $_;
1030                if (/^n/i) {
1031                        return 0;
1032                } elsif (/^q/i) {
1033                        cleanup_compose_files();
1034                        exit(0);
1035                } elsif (/^a/i) {
1036                        $confirm = 'never';
1037                }
1038        }
1039
1040        unshift (@sendmail_parameters, @smtp_server_options);
1041
1042        if ($dry_run) {
1043                # We don't want to send the email.
1044        } elsif ($smtp_server =~ m#^/#) {
1045                my $pid = open my $sm, '|-';
1046                defined $pid or die $!;
1047                if (!$pid) {
1048                        exec($smtp_server, @sendmail_parameters) or die $!;
1049                }
1050                print $sm "$header\n$message";
1051                close $sm or die $?;
1052        } else {
1053
1054                if (!defined $smtp_server) {
1055                        die "The required SMTP server is not properly defined."
1056                }
1057
1058                if ($smtp_encryption eq 'ssl') {
1059                        $smtp_server_port ||= 465; # ssmtp
1060                        require Net::SMTP::SSL;
1061                        $smtp_domain ||= maildomain();
1062                        $smtp ||= Net::SMTP::SSL->new($smtp_server,
1063                                                      Hello => $smtp_domain,
1064                                                      Port => $smtp_server_port);
1065                }
1066                else {
1067                        require Net::SMTP;
1068                        $smtp_domain ||= maildomain();
1069                        $smtp ||= Net::SMTP->new((defined $smtp_server_port)
1070                                                 ? "$smtp_server:$smtp_server_port"
1071                                                 : $smtp_server,
1072                                                 Hello => $smtp_domain,
1073                                                 Debug => $debug_net_smtp);
1074                        if ($smtp_encryption eq 'tls' && $smtp) {
1075                                require Net::SMTP::SSL;
1076                                $smtp->command('STARTTLS');
1077                                $smtp->response();
1078                                if ($smtp->code == 220) {
1079                                        $smtp = Net::SMTP::SSL->start_SSL($smtp)
1080                                                or die "STARTTLS failed! ".$smtp->message;
1081                                        $smtp_encryption = '';
1082                                        # Send EHLO again to receive fresh
1083                                        # supported commands
1084                                        $smtp->hello();
1085                                } else {
1086                                        die "Server does not support STARTTLS! ".$smtp->message;
1087                                }
1088                        }
1089                }
1090
1091                if (!$smtp) {
1092                        die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ",
1093                            "VALUES: server=$smtp_server ",
1094                            "encryption=$smtp_encryption ",
1095                            "hello=$smtp_domain",
1096                            defined $smtp_server_port ? "port=$smtp_server_port" : "";
1097                }
1098
1099                if (defined $smtp_authuser) {
1100
1101                        if (!defined $smtp_authpass) {
1102
1103                                system "stty -echo";
1104
1105                                do {
1106                                        print "Password: ";
1107                                        $_ = <STDIN>;
1108                                        print "\n";
1109                                } while (!defined $_);
1110
1111                                chomp($smtp_authpass = $_);
1112
1113                                system "stty echo";
1114                        }
1115
1116                        $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
1117                }
1118
1119                $smtp->mail( $raw_from ) or die $smtp->message;
1120                $smtp->to( @recipients ) or die $smtp->message;
1121                $smtp->data or die $smtp->message;
1122                $smtp->datasend("$header\n$message") or die $smtp->message;
1123                $smtp->dataend() or die $smtp->message;
1124                $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
1125        }
1126        if ($quiet) {
1127                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
1128        } else {
1129                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
1130                if ($smtp_server !~ m#^/#) {
1131                        print "Server: $smtp_server\n";
1132                        print "MAIL FROM:<$raw_from>\n";
1133                        foreach my $entry (@recipients) {
1134                            print "RCPT TO:<$entry>\n";
1135                        }
1136                } else {
1137                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1138                }
1139                print $header, "\n";
1140                if ($smtp) {
1141                        print "Result: ", $smtp->code, ' ',
1142                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1143                } else {
1144                        print "Result: OK\n";
1145                }
1146        }
1147
1148        return 1;
1149}
1150
1151$reply_to = $initial_reply_to;
1152$references = $initial_reply_to || '';
1153$subject = $initial_subject;
1154$message_num = 0;
1155
1156foreach my $t (@files) {
1157        open(F,"<",$t) or die "can't open file $t";
1158
1159        my $author = undef;
1160        my $author_encoding;
1161        my $has_content_type;
1162        my $body_encoding;
1163        @cc = ();
1164        @xh = ();
1165        my $input_format = undef;
1166        my @header = ();
1167        $message = "";
1168        $message_num++;
1169        # First unfold multiline header fields
1170        while(<F>) {
1171                last if /^\s*$/;
1172                if (/^\s+\S/ and @header) {
1173                        chomp($header[$#header]);
1174                        s/^\s+/ /;
1175                        $header[$#header] .= $_;
1176            } else {
1177                        push(@header, $_);
1178                }
1179        }
1180        # Now parse the header
1181        foreach(@header) {
1182                if (/^From /) {
1183                        $input_format = 'mbox';
1184                        next;
1185                }
1186                chomp;
1187                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1188                        $input_format = 'mbox';
1189                }
1190
1191                if (defined $input_format && $input_format eq 'mbox') {
1192                        if (/^Subject:\s+(.*)$/) {
1193                                $subject = $1;
1194                        }
1195                        elsif (/^From:\s+(.*)$/) {
1196                                ($author, $author_encoding) = unquote_rfc2047($1);
1197                                next if $suppress_cc{'author'};
1198                                next if $suppress_cc{'self'} and $author eq $sender;
1199                                printf("(mbox) Adding cc: %s from line '%s'\n",
1200                                        $1, $_) unless $quiet;
1201                                push @cc, $1;
1202                        }
1203                        elsif (/^Cc:\s+(.*)$/) {
1204                                foreach my $addr (parse_address_line($1)) {
1205                                        if (unquote_rfc2047($addr) eq $sender) {
1206                                                next if ($suppress_cc{'self'});
1207                                        } else {
1208                                                next if ($suppress_cc{'cc'});
1209                                        }
1210                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1211                                                $addr, $_) unless $quiet;
1212                                        push @cc, $addr;
1213                                }
1214                        }
1215                        elsif (/^Content-type:/i) {
1216                                $has_content_type = 1;
1217                                if (/charset="?([^ "]+)/) {
1218                                        $body_encoding = $1;
1219                                }
1220                                push @xh, $_;
1221                        }
1222                        elsif (/^Message-Id: (.*)/i) {
1223                                $message_id = $1;
1224                        }
1225                        elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1226                                push @xh, $_;
1227                        }
1228
1229                } else {
1230                        # In the traditional
1231                        # "send lots of email" format,
1232                        # line 1 = cc
1233                        # line 2 = subject
1234                        # So let's support that, too.
1235                        $input_format = 'lots';
1236                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1237                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1238                                        $_, $_) unless $quiet;
1239                                push @cc, $_;
1240                        } elsif (!defined $subject) {
1241                                $subject = $_;
1242                        }
1243                }
1244        }
1245        # Now parse the message body
1246        while(<F>) {
1247                $message .=  $_;
1248                if (/^(Signed-off-by|Cc): (.*)$/i) {
1249                        chomp;
1250                        my ($what, $c) = ($1, $2);
1251                        chomp $c;
1252                        if ($c eq $sender) {
1253                                next if ($suppress_cc{'self'});
1254                        } else {
1255                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1256                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1257                        }
1258                        push @cc, $c;
1259                        printf("(body) Adding cc: %s from line '%s'\n",
1260                                $c, $_) unless $quiet;
1261                }
1262        }
1263        close F;
1264
1265        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1266                if defined $to_cmd;
1267        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1268                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1269
1270        if ($broken_encoding{$t} && !$has_content_type) {
1271                $has_content_type = 1;
1272                push @xh, "MIME-Version: 1.0",
1273                        "Content-Type: text/plain; charset=$auto_8bit_encoding",
1274                        "Content-Transfer-Encoding: 8bit";
1275                $body_encoding = $auto_8bit_encoding;
1276        }
1277
1278        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1279                $subject = quote_rfc2047($subject, $auto_8bit_encoding);
1280        }
1281
1282        if (defined $author and $author ne $sender) {
1283                $message = "From: $author\n\n$message";
1284                if (defined $author_encoding) {
1285                        if ($has_content_type) {
1286                                if ($body_encoding eq $author_encoding) {
1287                                        # ok, we already have the right encoding
1288                                }
1289                                else {
1290                                        # uh oh, we should re-encode
1291                                }
1292                        }
1293                        else {
1294                                $has_content_type = 1;
1295                                push @xh,
1296                                  'MIME-Version: 1.0',
1297                                  "Content-Type: text/plain; charset=$author_encoding",
1298                                  'Content-Transfer-Encoding: 8bit';
1299                        }
1300                }
1301        }
1302
1303        $needs_confirm = (
1304                $confirm eq "always" or
1305                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1306                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1307        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1308
1309        @cc = (@initial_cc, @cc);
1310
1311        my $message_was_sent = send_message();
1312
1313        # set up for the next message
1314        if ($thread && $message_was_sent &&
1315                (chain_reply_to() || !defined $reply_to || length($reply_to) == 0)) {
1316                $reply_to = $message_id;
1317                if (length $references > 0) {
1318                        $references .= "\n $message_id";
1319                } else {
1320                        $references = "$message_id";
1321                }
1322        }
1323        $message_id = undef;
1324}
1325
1326# Execute a command (e.g. $to_cmd) to get a list of email addresses
1327# and return a results array
1328sub recipients_cmd {
1329        my ($prefix, $what, $cmd, $file) = @_;
1330
1331        my $sanitized_sender = sanitize_address($sender);
1332        my @addresses = ();
1333        open(F, "$cmd \Q$file\E |")
1334            or die "($prefix) Could not execute '$cmd'";
1335        while(<F>) {
1336                my $address = $_;
1337                $address =~ s/^\s*//g;
1338                $address =~ s/\s*$//g;
1339                $address = sanitize_address($address);
1340                next if ($address eq $sanitized_sender and $suppress_from);
1341                push @addresses, $address;
1342                printf("($prefix) Adding %s: %s from: '%s'\n",
1343                       $what, $address, $cmd) unless $quiet;
1344                }
1345        close F
1346            or die "($prefix) failed to close pipe to '$cmd'";
1347        return @addresses;
1348}
1349
1350cleanup_compose_files();
1351
1352sub cleanup_compose_files() {
1353        unlink($compose_filename, $compose_filename . ".final") if $compose;
1354}
1355
1356$smtp->quit if $smtp;
1357
1358sub unique_email_list(@) {
1359        my %seen;
1360        my @emails;
1361
1362        foreach my $entry (@_) {
1363                if (my $clean = extract_valid_address($entry)) {
1364                        $seen{$clean} ||= 0;
1365                        next if $seen{$clean}++;
1366                        push @emails, $entry;
1367                } else {
1368                        print STDERR "W: unable to extract a valid address",
1369                                        " from: $entry\n";
1370                }
1371        }
1372        return @emails;
1373}
1374
1375sub validate_patch {
1376        my $fn = shift;
1377        open(my $fh, '<', $fn)
1378                or die "unable to open $fn: $!\n";
1379        while (my $line = <$fh>) {
1380                if (length($line) > 998) {
1381                        return "$.: patch contains a line longer than 998 characters";
1382                }
1383        }
1384        return undef;
1385}
1386
1387sub file_has_nonascii {
1388        my $fn = shift;
1389        open(my $fh, '<', $fn)
1390                or die "unable to open $fn: $!\n";
1391        while (my $line = <$fh>) {
1392                return 1 if $line =~ /[^[:ascii:]]/;
1393        }
1394        return 0;
1395}
1396
1397sub body_or_subject_has_nonascii {
1398        my $fn = shift;
1399        open(my $fh, '<', $fn)
1400                or die "unable to open $fn: $!\n";
1401        while (my $line = <$fh>) {
1402                last if $line =~ /^$/;
1403                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1404        }
1405        while (my $line = <$fh>) {
1406                return 1 if $line =~ /[^[:ascii:]]/;
1407        }
1408        return 0;
1409}