git-send-email.perlon commit send-email: be explicit with SSL certificate verification (35035bb)
   1#!/usr/bin/perl
   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 5.008;
  20use strict;
  21use warnings;
  22use Term::ReadLine;
  23use Getopt::Long;
  24use Text::ParseWords;
  25use Data::Dumper;
  26use Term::ANSIColor;
  27use File::Temp qw/ tempdir tempfile /;
  28use File::Spec::Functions qw(catfile);
  29use Error qw(:try);
  30use Git;
  31
  32Getopt::Long::Configure qw/ pass_through /;
  33
  34package FakeTerm;
  35sub new {
  36        my ($class, $reason) = @_;
  37        return bless \$reason, shift;
  38}
  39sub readline {
  40        my $self = shift;
  41        die "Cannot use readline on FakeTerm: $$self";
  42}
  43package main;
  44
  45
  46sub usage {
  47        print <<EOT;
  48git send-email [options] <file | directory | rev-list options >
  49
  50  Composing:
  51    --from                  <str>  * Email From:
  52    --[no-]to               <str>  * Email To:
  53    --[no-]cc               <str>  * Email Cc:
  54    --[no-]bcc              <str>  * Email Bcc:
  55    --subject               <str>  * Email "Subject:"
  56    --in-reply-to           <str>  * Email "In-Reply-To:"
  57    --[no-]annotate                * Review each patch that will be sent in an editor.
  58    --compose                      * Open an editor for introduction.
  59    --compose-encoding      <str>  * Encoding to assume for introduction.
  60    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  61
  62  Sending:
  63    --envelope-sender       <str>  * Email envelope sender.
  64    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  65                                     is optional. Default 'localhost'.
  66    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  67    --smtp-server-port      <int>  * Outgoing SMTP server port.
  68    --smtp-user             <str>  * Username for SMTP-AUTH.
  69    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  70    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  71    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  72    --smtp-ssl-cert-path    <str>  * Path to ca-certificates (either directory or file).
  73                                     Pass an empty string to disable certificate
  74                                     verification.
  75    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  76    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  77
  78  Automating:
  79    --identity              <str>  * Use the sendemail.<id> options.
  80    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  81    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  82    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  83    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  84    --[no-]suppress-from           * Send to self. Default off.
  85    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
  86    --[no-]thread                  * Use In-Reply-To: field. Default on.
  87
  88  Administering:
  89    --confirm               <str>  * Confirm recipients before sending;
  90                                     auto, cc, compose, always, or never.
  91    --quiet                        * Output one line of info per email.
  92    --dry-run                      * Don't actually send the emails.
  93    --[no-]validate                * Perform patch sanity checks. Default on.
  94    --[no-]format-patch            * understand any non optional arguments as
  95                                     `git format-patch` ones.
  96    --force                        * Send even if safety checks would prevent it.
  97
  98EOT
  99        exit(1);
 100}
 101
 102# most mail servers generate the Date: header, but not all...
 103sub format_2822_time {
 104        my ($time) = @_;
 105        my @localtm = localtime($time);
 106        my @gmttm = gmtime($time);
 107        my $localmin = $localtm[1] + $localtm[2] * 60;
 108        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 109        if ($localtm[0] != $gmttm[0]) {
 110                die "local zone differs from GMT by a non-minute interval\n";
 111        }
 112        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 113                $localmin += 1440;
 114        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 115                $localmin -= 1440;
 116        } elsif ($gmttm[6] != $localtm[6]) {
 117                die "local time offset greater than or equal to 24 hours\n";
 118        }
 119        my $offset = $localmin - $gmtmin;
 120        my $offhour = $offset / 60;
 121        my $offmin = abs($offset % 60);
 122        if (abs($offhour) >= 24) {
 123                die ("local time offset greater than or equal to 24 hours\n");
 124        }
 125
 126        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 127                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 128                       $localtm[3],
 129                       qw(Jan Feb Mar Apr May Jun
 130                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 131                       $localtm[5]+1900,
 132                       $localtm[2],
 133                       $localtm[1],
 134                       $localtm[0],
 135                       ($offset >= 0) ? '+' : '-',
 136                       abs($offhour),
 137                       $offmin,
 138                       );
 139}
 140
 141my $have_email_valid = eval { require Email::Valid; 1 };
 142my $have_mail_address = eval { require Mail::Address; 1 };
 143my $smtp;
 144my $auth;
 145
 146# Variables we fill in automatically, or via prompting:
 147my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 148        $initial_reply_to,$initial_subject,@files,
 149        $author,$sender,$smtp_authpass,$annotate,$compose,$time);
 150
 151my $envelope_sender;
 152
 153# Example reply to:
 154#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 155
 156my $repo = eval { Git->repository() };
 157my @repo = $repo ? ($repo) : ();
 158my $term = eval {
 159        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 160                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 161                : new Term::ReadLine 'git-send-email';
 162};
 163if ($@) {
 164        $term = new FakeTerm "$@: going non-interactive";
 165}
 166
 167# Behavior modification variables
 168my ($quiet, $dry_run) = (0, 0);
 169my $format_patch;
 170my $compose_filename;
 171my $force = 0;
 172
 173# Handle interactive edition of files.
 174my $multiedit;
 175my $editor;
 176
 177sub do_edit {
 178        if (!defined($editor)) {
 179                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 180        }
 181        if (defined($multiedit) && !$multiedit) {
 182                map {
 183                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 184                        if (($? & 127) || ($? >> 8)) {
 185                                die("the editor exited uncleanly, aborting everything");
 186                        }
 187                } @_;
 188        } else {
 189                system('sh', '-c', $editor.' "$@"', $editor, @_);
 190                if (($? & 127) || ($? >> 8)) {
 191                        die("the editor exited uncleanly, aborting everything");
 192                }
 193        }
 194}
 195
 196# Variables with corresponding config settings
 197my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 198my ($to_cmd, $cc_cmd);
 199my ($smtp_server, $smtp_server_port, @smtp_server_options);
 200my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 201my ($identity, $aliasfiletype, @alias_files, $smtp_domain);
 202my ($validate, $confirm);
 203my (@suppress_cc);
 204my ($auto_8bit_encoding);
 205my ($compose_encoding);
 206
 207my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 208
 209my $not_set_by_user = "true but not set by the user";
 210
 211my %config_bool_settings = (
 212    "thread" => [\$thread, 1],
 213    "chainreplyto" => [\$chain_reply_to, $not_set_by_user],
 214    "suppressfrom" => [\$suppress_from, undef],
 215    "signedoffbycc" => [\$signed_off_by_cc, undef],
 216    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 217    "validate" => [\$validate, 1],
 218    "multiedit" => [\$multiedit, undef],
 219    "annotate" => [\$annotate, undef]
 220);
 221
 222my %config_settings = (
 223    "smtpserver" => \$smtp_server,
 224    "smtpserverport" => \$smtp_server_port,
 225    "smtpserveroption" => \@smtp_server_options,
 226    "smtpuser" => \$smtp_authuser,
 227    "smtppass" => \$smtp_authpass,
 228    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 229    "smtpdomain" => \$smtp_domain,
 230    "to" => \@initial_to,
 231    "tocmd" => \$to_cmd,
 232    "cc" => \@initial_cc,
 233    "cccmd" => \$cc_cmd,
 234    "aliasfiletype" => \$aliasfiletype,
 235    "bcc" => \@bcclist,
 236    "suppresscc" => \@suppress_cc,
 237    "envelopesender" => \$envelope_sender,
 238    "confirm"   => \$confirm,
 239    "from" => \$sender,
 240    "assume8bitencoding" => \$auto_8bit_encoding,
 241    "composeencoding" => \$compose_encoding,
 242);
 243
 244my %config_path_settings = (
 245    "aliasesfile" => \@alias_files,
 246);
 247
 248# Help users prepare for 1.7.0
 249sub chain_reply_to {
 250        if (defined $chain_reply_to &&
 251            $chain_reply_to eq $not_set_by_user) {
 252                print STDERR
 253                    "In git 1.7.0, the default has changed to --no-chain-reply-to\n" .
 254                    "Set sendemail.chainreplyto configuration variable to true if\n" .
 255                    "you want to keep --chain-reply-to as your default.\n";
 256                $chain_reply_to = 0;
 257        }
 258        return $chain_reply_to;
 259}
 260
 261# Handle Uncouth Termination
 262sub signal_handler {
 263
 264        # Make text normal
 265        print color("reset"), "\n";
 266
 267        # SMTP password masked
 268        system "stty echo";
 269
 270        # tmp files from --compose
 271        if (defined $compose_filename) {
 272                if (-e $compose_filename) {
 273                        print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
 274                }
 275                if (-e ($compose_filename . ".final")) {
 276                        print "'$compose_filename.final' contains the composed email.\n"
 277                }
 278        }
 279
 280        exit;
 281};
 282
 283$SIG{TERM} = \&signal_handler;
 284$SIG{INT}  = \&signal_handler;
 285
 286# Begin by accumulating all the variables (defined above), that we will end up
 287# needing, first, from the command line:
 288
 289my $help;
 290my $rc = GetOptions("h" => \$help,
 291                    "sender|from=s" => \$sender,
 292                    "in-reply-to=s" => \$initial_reply_to,
 293                    "subject=s" => \$initial_subject,
 294                    "to=s" => \@initial_to,
 295                    "to-cmd=s" => \$to_cmd,
 296                    "no-to" => \$no_to,
 297                    "cc=s" => \@initial_cc,
 298                    "no-cc" => \$no_cc,
 299                    "bcc=s" => \@bcclist,
 300                    "no-bcc" => \$no_bcc,
 301                    "chain-reply-to!" => \$chain_reply_to,
 302                    "smtp-server=s" => \$smtp_server,
 303                    "smtp-server-option=s" => \@smtp_server_options,
 304                    "smtp-server-port=s" => \$smtp_server_port,
 305                    "smtp-user=s" => \$smtp_authuser,
 306                    "smtp-pass:s" => \$smtp_authpass,
 307                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 308                    "smtp-encryption=s" => \$smtp_encryption,
 309                    "smtp-ssl-cert-path" => \$smtp_ssl_cert_path,
 310                    "smtp-debug:i" => \$debug_net_smtp,
 311                    "smtp-domain:s" => \$smtp_domain,
 312                    "identity=s" => \$identity,
 313                    "annotate!" => \$annotate,
 314                    "compose" => \$compose,
 315                    "quiet" => \$quiet,
 316                    "cc-cmd=s" => \$cc_cmd,
 317                    "suppress-from!" => \$suppress_from,
 318                    "suppress-cc=s" => \@suppress_cc,
 319                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 320                    "confirm=s" => \$confirm,
 321                    "dry-run" => \$dry_run,
 322                    "envelope-sender=s" => \$envelope_sender,
 323                    "thread!" => \$thread,
 324                    "validate!" => \$validate,
 325                    "format-patch!" => \$format_patch,
 326                    "8bit-encoding=s" => \$auto_8bit_encoding,
 327                    "compose-encoding=s" => \$compose_encoding,
 328                    "force" => \$force,
 329         );
 330
 331usage() if $help;
 332unless ($rc) {
 333    usage();
 334}
 335
 336die "Cannot run git format-patch from outside a repository\n"
 337        if $format_patch and not $repo;
 338
 339# Now, let's fill any that aren't set in with defaults:
 340
 341sub read_config {
 342        my ($prefix) = @_;
 343
 344        foreach my $setting (keys %config_bool_settings) {
 345                my $target = $config_bool_settings{$setting}->[0];
 346                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 347        }
 348
 349        foreach my $setting (keys %config_path_settings) {
 350                my $target = $config_path_settings{$setting};
 351                if (ref($target) eq "ARRAY") {
 352                        unless (@$target) {
 353                                my @values = Git::config_path(@repo, "$prefix.$setting");
 354                                @$target = @values if (@values && defined $values[0]);
 355                        }
 356                }
 357                else {
 358                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 359                }
 360        }
 361
 362        foreach my $setting (keys %config_settings) {
 363                my $target = $config_settings{$setting};
 364                next if $setting eq "to" and defined $no_to;
 365                next if $setting eq "cc" and defined $no_cc;
 366                next if $setting eq "bcc" and defined $no_bcc;
 367                if (ref($target) eq "ARRAY") {
 368                        unless (@$target) {
 369                                my @values = Git::config(@repo, "$prefix.$setting");
 370                                @$target = @values if (@values && defined $values[0]);
 371                        }
 372                }
 373                else {
 374                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 375                }
 376        }
 377
 378        if (!defined $smtp_encryption) {
 379                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 380                if (defined $enc) {
 381                        $smtp_encryption = $enc;
 382                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 383                        $smtp_encryption = 'ssl';
 384                }
 385        }
 386}
 387
 388# read configuration from [sendemail "$identity"], fall back on [sendemail]
 389$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 390read_config("sendemail.$identity") if (defined $identity);
 391read_config("sendemail");
 392
 393# fall back on builtin bool defaults
 394foreach my $setting (values %config_bool_settings) {
 395        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 396}
 397
 398# 'default' encryption is none -- this only prevents a warning
 399$smtp_encryption = '' unless (defined $smtp_encryption);
 400
 401# Set CC suppressions
 402my(%suppress_cc);
 403if (@suppress_cc) {
 404        foreach my $entry (@suppress_cc) {
 405                die "Unknown --suppress-cc field: '$entry'\n"
 406                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 407                $suppress_cc{$entry} = 1;
 408        }
 409}
 410
 411if ($suppress_cc{'all'}) {
 412        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 413                $suppress_cc{$entry} = 1;
 414        }
 415        delete $suppress_cc{'all'};
 416}
 417
 418# If explicit old-style ones are specified, they trump --suppress-cc.
 419$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 420$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 421
 422if ($suppress_cc{'body'}) {
 423        foreach my $entry (qw (sob bodycc)) {
 424                $suppress_cc{$entry} = 1;
 425        }
 426        delete $suppress_cc{'body'};
 427}
 428
 429# Set confirm's default value
 430my $confirm_unconfigured = !defined $confirm;
 431if ($confirm_unconfigured) {
 432        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 433};
 434die "Unknown --confirm setting: '$confirm'\n"
 435        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 436
 437# Debugging, print out the suppressions.
 438if (0) {
 439        print "suppressions:\n";
 440        foreach my $entry (keys %suppress_cc) {
 441                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 442        }
 443}
 444
 445my ($repoauthor, $repocommitter);
 446($repoauthor) = Git::ident_person(@repo, 'author');
 447($repocommitter) = Git::ident_person(@repo, 'committer');
 448
 449# Verify the user input
 450
 451foreach my $entry (@initial_to) {
 452        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 453}
 454
 455foreach my $entry (@initial_cc) {
 456        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 457}
 458
 459foreach my $entry (@bcclist) {
 460        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 461}
 462
 463sub parse_address_line {
 464        if ($have_mail_address) {
 465                return map { $_->format } Mail::Address->parse($_[0]);
 466        } else {
 467                return split_addrs($_[0]);
 468        }
 469}
 470
 471sub split_addrs {
 472        return quotewords('\s*,\s*', 1, @_);
 473}
 474
 475my %aliases;
 476my %parse_alias = (
 477        # multiline formats can be supported in the future
 478        mutt => sub { my $fh = shift; while (<$fh>) {
 479                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 480                        my ($alias, $addr) = ($1, $2);
 481                        $addr =~ s/#.*$//; # mutt allows # comments
 482                         # commas delimit multiple addresses
 483                        $aliases{$alias} = [ split_addrs($addr) ];
 484                }}},
 485        mailrc => sub { my $fh = shift; while (<$fh>) {
 486                if (/^alias\s+(\S+)\s+(.*)$/) {
 487                        # spaces delimit multiple addresses
 488                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 489                }}},
 490        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 491                for (my $x = ''; defined($x); $x = $_) {
 492                        chomp $x;
 493                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 494                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 495                        $aliases{$1} = [ split_addrs($2) ];
 496                }},
 497        elm => sub  { my $fh = shift;
 498                      while (<$fh>) {
 499                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 500                              my ($alias, $addr) = ($1, $2);
 501                               $aliases{$alias} = [ split_addrs($addr) ];
 502                          }
 503                      } },
 504
 505        gnus => sub { my $fh = shift; while (<$fh>) {
 506                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 507                        $aliases{$1} = [ $2 ];
 508                }}}
 509);
 510
 511if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 512        foreach my $file (@alias_files) {
 513                open my $fh, '<', $file or die "opening $file: $!\n";
 514                $parse_alias{$aliasfiletype}->($fh);
 515                close $fh;
 516        }
 517}
 518
 519($sender) = expand_aliases($sender) if defined $sender;
 520
 521# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 522# $f is a revision list specification to be passed to format-patch.
 523sub is_format_patch_arg {
 524        return unless $repo;
 525        my $f = shift;
 526        try {
 527                $repo->command('rev-parse', '--verify', '--quiet', $f);
 528                if (defined($format_patch)) {
 529                        return $format_patch;
 530                }
 531                die(<<EOF);
 532File '$f' exists but it could also be the range of commits
 533to produce patches for.  Please disambiguate by...
 534
 535    * Saying "./$f" if you mean a file; or
 536    * Giving --format-patch option if you mean a range.
 537EOF
 538        } catch Git::Error::Command with {
 539                # Not a valid revision.  Treat it as a filename.
 540                return 0;
 541        }
 542}
 543
 544# Now that all the defaults are set, process the rest of the command line
 545# arguments and collect up the files that need to be processed.
 546my @rev_list_opts;
 547while (defined(my $f = shift @ARGV)) {
 548        if ($f eq "--") {
 549                push @rev_list_opts, "--", @ARGV;
 550                @ARGV = ();
 551        } elsif (-d $f and !is_format_patch_arg($f)) {
 552                opendir my $dh, $f
 553                        or die "Failed to opendir $f: $!";
 554
 555                push @files, grep { -f $_ } map { catfile($f, $_) }
 556                                sort readdir $dh;
 557                closedir $dh;
 558        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 559                push @files, $f;
 560        } else {
 561                push @rev_list_opts, $f;
 562        }
 563}
 564
 565if (@rev_list_opts) {
 566        die "Cannot run git format-patch from outside a repository\n"
 567                unless $repo;
 568        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 569}
 570
 571if ($validate) {
 572        foreach my $f (@files) {
 573                unless (-p $f) {
 574                        my $error = validate_patch($f);
 575                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 576                }
 577        }
 578}
 579
 580if (@files) {
 581        unless ($quiet) {
 582                print $_,"\n" for (@files);
 583        }
 584} else {
 585        print STDERR "\nNo patch files specified!\n\n";
 586        usage();
 587}
 588
 589sub get_patch_subject {
 590        my $fn = shift;
 591        open (my $fh, '<', $fn);
 592        while (my $line = <$fh>) {
 593                next unless ($line =~ /^Subject: (.*)$/);
 594                close $fh;
 595                return "GIT: $1\n";
 596        }
 597        close $fh;
 598        die "No subject line in $fn ?";
 599}
 600
 601if ($compose) {
 602        # Note that this does not need to be secure, but we will make a small
 603        # effort to have it be unique
 604        $compose_filename = ($repo ?
 605                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 606                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 607        open my $c, ">", $compose_filename
 608                or die "Failed to open for writing $compose_filename: $!";
 609
 610
 611        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 612        my $tpl_subject = $initial_subject || '';
 613        my $tpl_reply_to = $initial_reply_to || '';
 614
 615        print $c <<EOT;
 616From $tpl_sender # This line is ignored.
 617GIT: Lines beginning in "GIT:" will be removed.
 618GIT: Consider including an overall diffstat or table of contents
 619GIT: for the patch you are writing.
 620GIT:
 621GIT: Clear the body content if you don't wish to send a summary.
 622From: $tpl_sender
 623Subject: $tpl_subject
 624In-Reply-To: $tpl_reply_to
 625
 626EOT
 627        for my $f (@files) {
 628                print $c get_patch_subject($f);
 629        }
 630        close $c;
 631
 632        if ($annotate) {
 633                do_edit($compose_filename, @files);
 634        } else {
 635                do_edit($compose_filename);
 636        }
 637
 638        open my $c2, ">", $compose_filename . ".final"
 639                or die "Failed to open $compose_filename.final : " . $!;
 640
 641        open $c, "<", $compose_filename
 642                or die "Failed to open $compose_filename : " . $!;
 643
 644        my $need_8bit_cte = file_has_nonascii($compose_filename);
 645        my $in_body = 0;
 646        my $summary_empty = 1;
 647        if (!defined $compose_encoding) {
 648                $compose_encoding = "UTF-8";
 649        }
 650        while(<$c>) {
 651                next if m/^GIT:/;
 652                if ($in_body) {
 653                        $summary_empty = 0 unless (/^\n$/);
 654                } elsif (/^\n$/) {
 655                        $in_body = 1;
 656                        if ($need_8bit_cte) {
 657                                print $c2 "MIME-Version: 1.0\n",
 658                                         "Content-Type: text/plain; ",
 659                                           "charset=$compose_encoding\n",
 660                                         "Content-Transfer-Encoding: 8bit\n";
 661                        }
 662                } elsif (/^MIME-Version:/i) {
 663                        $need_8bit_cte = 0;
 664                } elsif (/^Subject:\s*(.+)\s*$/i) {
 665                        $initial_subject = $1;
 666                        my $subject = $initial_subject;
 667                        $_ = "Subject: " .
 668                                quote_subject($subject, $compose_encoding) .
 669                                "\n";
 670                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 671                        $initial_reply_to = $1;
 672                        next;
 673                } elsif (/^From:\s*(.+)\s*$/i) {
 674                        $sender = $1;
 675                        next;
 676                } elsif (/^(?:To|Cc|Bcc):/i) {
 677                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 678                        next;
 679                }
 680                print $c2 $_;
 681        }
 682        close $c;
 683        close $c2;
 684
 685        if ($summary_empty) {
 686                print "Summary email is empty, skipping it\n";
 687                $compose = -1;
 688        }
 689} elsif ($annotate) {
 690        do_edit(@files);
 691}
 692
 693sub ask {
 694        my ($prompt, %arg) = @_;
 695        my $valid_re = $arg{valid_re};
 696        my $default = $arg{default};
 697        my $confirm_only = $arg{confirm_only};
 698        my $resp;
 699        my $i = 0;
 700        return defined $default ? $default : undef
 701                unless defined $term->IN and defined fileno($term->IN) and
 702                       defined $term->OUT and defined fileno($term->OUT);
 703        while ($i++ < 10) {
 704                $resp = $term->readline($prompt);
 705                if (!defined $resp) { # EOF
 706                        print "\n";
 707                        return defined $default ? $default : undef;
 708                }
 709                if ($resp eq '' and defined $default) {
 710                        return $default;
 711                }
 712                if (!defined $valid_re or $resp =~ /$valid_re/) {
 713                        return $resp;
 714                }
 715                if ($confirm_only) {
 716                        my $yesno = $term->readline("Are you sure you want to use <$resp> [y/N]? ");
 717                        if (defined $yesno && $yesno =~ /y/i) {
 718                                return $resp;
 719                        }
 720                }
 721        }
 722        return;
 723}
 724
 725my %broken_encoding;
 726
 727sub file_declares_8bit_cte {
 728        my $fn = shift;
 729        open (my $fh, '<', $fn);
 730        while (my $line = <$fh>) {
 731                last if ($line =~ /^$/);
 732                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 733        }
 734        close $fh;
 735        return 0;
 736}
 737
 738foreach my $f (@files) {
 739        next unless (body_or_subject_has_nonascii($f)
 740                     && !file_declares_8bit_cte($f));
 741        $broken_encoding{$f} = 1;
 742}
 743
 744if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 745        print "The following files are 8bit, but do not declare " .
 746                "a Content-Transfer-Encoding.\n";
 747        foreach my $f (sort keys %broken_encoding) {
 748                print "    $f\n";
 749        }
 750        $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
 751                                  default => "UTF-8");
 752}
 753
 754if (!$force) {
 755        for my $f (@files) {
 756                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 757                        die "Refusing to send because the patch\n\t$f\n"
 758                                . "has the template subject '*** SUBJECT HERE ***'. "
 759                                . "Pass --force if you really want to send.\n";
 760                }
 761        }
 762}
 763
 764if (!defined $sender) {
 765        $sender = $repoauthor || $repocommitter || '';
 766}
 767
 768my $prompting = 0;
 769if (!@initial_to && !defined $to_cmd) {
 770        my $to = ask("Who should the emails be sent to (if any)? ",
 771                     default => "",
 772                     valid_re => qr/\@.*\./, confirm_only => 1);
 773        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 774        $prompting++;
 775}
 776
 777sub expand_aliases {
 778        return map { expand_one_alias($_) } @_;
 779}
 780
 781my %EXPANDED_ALIASES;
 782sub expand_one_alias {
 783        my $alias = shift;
 784        if ($EXPANDED_ALIASES{$alias}) {
 785                die "fatal: alias '$alias' expands to itself\n";
 786        }
 787        local $EXPANDED_ALIASES{$alias} = 1;
 788        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 789}
 790
 791@initial_to = expand_aliases(@initial_to);
 792@initial_to = validate_address_list(sanitize_address_list(@initial_to));
 793@initial_cc = expand_aliases(@initial_cc);
 794@initial_cc = validate_address_list(sanitize_address_list(@initial_cc));
 795@bcclist = expand_aliases(@bcclist);
 796@bcclist = validate_address_list(sanitize_address_list(@bcclist));
 797
 798if ($thread && !defined $initial_reply_to && $prompting) {
 799        $initial_reply_to = ask(
 800                "Message-ID to be used as In-Reply-To for the first email (if any)? ",
 801                default => "",
 802                valid_re => qr/\@.*\./, confirm_only => 1);
 803}
 804if (defined $initial_reply_to) {
 805        $initial_reply_to =~ s/^\s*<?//;
 806        $initial_reply_to =~ s/>?\s*$//;
 807        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 808}
 809
 810if (!defined $smtp_server) {
 811        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 812                if (-x $_) {
 813                        $smtp_server = $_;
 814                        last;
 815                }
 816        }
 817        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 818}
 819
 820if ($compose && $compose > 0) {
 821        @files = ($compose_filename . ".final", @files);
 822}
 823
 824# Variables we set as part of the loop over files
 825our ($message_id, %mail, $subject, $reply_to, $references, $message,
 826        $needs_confirm, $message_num, $ask_default);
 827
 828sub extract_valid_address {
 829        my $address = shift;
 830        my $local_part_regexp = qr/[^<>"\s@]+/;
 831        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 832
 833        # check for a local address:
 834        return $address if ($address =~ /^($local_part_regexp)$/);
 835
 836        $address =~ s/^\s*<(.*)>\s*$/$1/;
 837        if ($have_email_valid) {
 838                return scalar Email::Valid->address($address);
 839        }
 840
 841        # less robust/correct than the monster regexp in Email::Valid,
 842        # but still does a 99% job, and one less dependency
 843        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 844        return;
 845}
 846
 847sub extract_valid_address_or_die {
 848        my $address = shift;
 849        $address = extract_valid_address($address);
 850        die "error: unable to extract a valid address from: $address\n"
 851                if !$address;
 852        return $address;
 853}
 854
 855sub validate_address {
 856        my $address = shift;
 857        while (!extract_valid_address($address)) {
 858                print STDERR "error: unable to extract a valid address from: $address\n";
 859                $_ = ask("What to do with this address? ([q]uit|[d]rop|[e]dit): ",
 860                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 861                        default => 'q');
 862                if (/^d/i) {
 863                        return undef;
 864                } elsif (/^q/i) {
 865                        cleanup_compose_files();
 866                        exit(0);
 867                }
 868                $address = ask("Who should the email be sent to (if any)? ",
 869                        default => "",
 870                        valid_re => qr/\@.*\./, confirm_only => 1);
 871        }
 872        return $address;
 873}
 874
 875sub validate_address_list {
 876        return (grep { defined $_ }
 877                map { validate_address($_) } @_);
 878}
 879
 880# Usually don't need to change anything below here.
 881
 882# we make a "fake" message id by taking the current number
 883# of seconds since the beginning of Unix time and tacking on
 884# a random number to the end, in case we are called quicker than
 885# 1 second since the last time we were called.
 886
 887# We'll setup a template for the message id, using the "from" address:
 888
 889my ($message_id_stamp, $message_id_serial);
 890sub make_message_id {
 891        my $uniq;
 892        if (!defined $message_id_stamp) {
 893                $message_id_stamp = sprintf("%s-%s", time, $$);
 894                $message_id_serial = 0;
 895        }
 896        $message_id_serial++;
 897        $uniq = "$message_id_stamp-$message_id_serial";
 898
 899        my $du_part;
 900        for ($sender, $repocommitter, $repoauthor) {
 901                $du_part = extract_valid_address(sanitize_address($_));
 902                last if (defined $du_part and $du_part ne '');
 903        }
 904        if (not defined $du_part or $du_part eq '') {
 905                require Sys::Hostname;
 906                $du_part = 'user@' . Sys::Hostname::hostname();
 907        }
 908        my $message_id_template = "<%s-git-send-email-%s>";
 909        $message_id = sprintf($message_id_template, $uniq, $du_part);
 910        #print "new message id = $message_id\n"; # Was useful for debugging
 911}
 912
 913
 914
 915$time = time - scalar $#files;
 916
 917sub unquote_rfc2047 {
 918        local ($_) = @_;
 919        my $encoding;
 920        s{=\?([^?]+)\?q\?(.*?)\?=}{
 921                $encoding = $1;
 922                my $e = $2;
 923                $e =~ s/_/ /g;
 924                $e =~ s/=([0-9A-F]{2})/chr(hex($1))/eg;
 925                $e;
 926        }eg;
 927        return wantarray ? ($_, $encoding) : $_;
 928}
 929
 930sub quote_rfc2047 {
 931        local $_ = shift;
 932        my $encoding = shift || 'UTF-8';
 933        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 934        s/(.*)/=\?$encoding\?q\?$1\?=/;
 935        return $_;
 936}
 937
 938sub is_rfc2047_quoted {
 939        my $s = shift;
 940        my $token = qr/[^][()<>@,;:"\/?.= \000-\037\177-\377]+/;
 941        my $encoded_text = qr/[!->@-~]+/;
 942        length($s) <= 75 &&
 943        $s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
 944}
 945
 946sub subject_needs_rfc2047_quoting {
 947        my $s = shift;
 948
 949        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
 950}
 951
 952sub quote_subject {
 953        local $subject = shift;
 954        my $encoding = shift || 'UTF-8';
 955
 956        if (subject_needs_rfc2047_quoting($subject)) {
 957                return quote_rfc2047($subject, $encoding);
 958        }
 959        return $subject;
 960}
 961
 962# use the simplest quoting being able to handle the recipient
 963sub sanitize_address {
 964        my ($recipient) = @_;
 965
 966        # remove garbage after email address
 967        $recipient =~ s/(.*>).*$/$1/;
 968
 969        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 970
 971        if (not $recipient_name) {
 972                return $recipient;
 973        }
 974
 975        # if recipient_name is already quoted, do nothing
 976        if (is_rfc2047_quoted($recipient_name)) {
 977                return $recipient;
 978        }
 979
 980        # rfc2047 is needed if a non-ascii char is included
 981        if ($recipient_name =~ /[^[:ascii:]]/) {
 982                $recipient_name =~ s/^"(.*)"$/$1/;
 983                $recipient_name = quote_rfc2047($recipient_name);
 984        }
 985
 986        # double quotes are needed if specials or CTLs are included
 987        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 988                $recipient_name =~ s/(["\\\r])/\\$1/g;
 989                $recipient_name = qq["$recipient_name"];
 990        }
 991
 992        return "$recipient_name $recipient_addr";
 993
 994}
 995
 996sub sanitize_address_list {
 997        return (map { sanitize_address($_) } @_);
 998}
 999
1000# Returns the local Fully Qualified Domain Name (FQDN) if available.
1001#
1002# Tightly configured MTAa require that a caller sends a real DNS
1003# domain name that corresponds the IP address in the HELO/EHLO
1004# handshake. This is used to verify the connection and prevent
1005# spammers from trying to hide their identity. If the DNS and IP don't
1006# match, the receiveing MTA may deny the connection.
1007#
1008# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1009#
1010# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1011# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1012#
1013# This maildomain*() code is based on ideas in Perl library Test::Reporter
1014# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1015
1016sub valid_fqdn {
1017        my $domain = shift;
1018        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1019}
1020
1021sub maildomain_net {
1022        my $maildomain;
1023
1024        if (eval { require Net::Domain; 1 }) {
1025                my $domain = Net::Domain::domainname();
1026                $maildomain = $domain if valid_fqdn($domain);
1027        }
1028
1029        return $maildomain;
1030}
1031
1032sub maildomain_mta {
1033        my $maildomain;
1034
1035        if (eval { require Net::SMTP; 1 }) {
1036                for my $host (qw(mailhost localhost)) {
1037                        my $smtp = Net::SMTP->new($host);
1038                        if (defined $smtp) {
1039                                my $domain = $smtp->domain;
1040                                $smtp->quit;
1041
1042                                $maildomain = $domain if valid_fqdn($domain);
1043
1044                                last if $maildomain;
1045                        }
1046                }
1047        }
1048
1049        return $maildomain;
1050}
1051
1052sub maildomain {
1053        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1054}
1055
1056sub smtp_host_string {
1057        if (defined $smtp_server_port) {
1058                return "$smtp_server:$smtp_server_port";
1059        } else {
1060                return $smtp_server;
1061        }
1062}
1063
1064# Returns 1 if authentication succeeded or was not necessary
1065# (smtp_user was not specified), and 0 otherwise.
1066
1067sub smtp_auth_maybe {
1068        if (!defined $smtp_authuser || $auth) {
1069                return 1;
1070        }
1071
1072        # Workaround AUTH PLAIN/LOGIN interaction defect
1073        # with Authen::SASL::Cyrus
1074        eval {
1075                require Authen::SASL;
1076                Authen::SASL->import(qw(Perl));
1077        };
1078
1079        # TODO: Authentication may fail not because credentials were
1080        # invalid but due to other reasons, in which we should not
1081        # reject credentials.
1082        $auth = Git::credential({
1083                'protocol' => 'smtp',
1084                'host' => smtp_host_string(),
1085                'username' => $smtp_authuser,
1086                # if there's no password, "git credential fill" will
1087                # give us one, otherwise it'll just pass this one.
1088                'password' => $smtp_authpass
1089        }, sub {
1090                my $cred = shift;
1091                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1092        });
1093
1094        return $auth;
1095}
1096
1097sub ssl_verify_params {
1098        eval {
1099                require IO::Socket::SSL;
1100                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1101        };
1102        if ($@) {
1103                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1104                return;
1105        }
1106
1107        if (!defined $smtp_ssl_cert_path) {
1108                $smtp_ssl_cert_path = "/etc/ssl/certs";
1109        }
1110
1111        if ($smtp_ssl_cert_path eq "") {
1112                return (SSL_verify_mode => SSL_VERIFY_NONE());
1113        } elsif (-d $smtp_ssl_cert_path) {
1114                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1115                        SSL_ca_path => $smtp_ssl_cert_path);
1116        } elsif (-f $smtp_ssl_cert_path) {
1117                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1118                        SSL_ca_file => $smtp_ssl_cert_path);
1119        } else {
1120                print STDERR "Not using SSL_VERIFY_PEER because the CA path does not exist.\n";
1121                return (SSL_verify_mode => SSL_VERIFY_NONE());
1122        }
1123}
1124
1125# Returns 1 if the message was sent, and 0 otherwise.
1126# In actuality, the whole program dies when there
1127# is an error sending a message.
1128
1129sub send_message {
1130        my @recipients = unique_email_list(@to);
1131        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1132                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1133                    }
1134               @cc);
1135        my $to = join (",\n\t", @recipients);
1136        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1137        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1138        my $date = format_2822_time($time++);
1139        my $gitversion = '@@GIT_VERSION@@';
1140        if ($gitversion =~ m/..GIT_VERSION../) {
1141            $gitversion = Git::version();
1142        }
1143
1144        my $cc = join(",\n\t", unique_email_list(@cc));
1145        my $ccline = "";
1146        if ($cc ne '') {
1147                $ccline = "\nCc: $cc";
1148        }
1149        my $sanitized_sender = sanitize_address($sender);
1150        make_message_id() unless defined($message_id);
1151
1152        my $header = "From: $sanitized_sender
1153To: $to${ccline}
1154Subject: $subject
1155Date: $date
1156Message-Id: $message_id
1157X-Mailer: git-send-email $gitversion
1158";
1159        if ($reply_to) {
1160
1161                $header .= "In-Reply-To: $reply_to\n";
1162                $header .= "References: $references\n";
1163        }
1164        if (@xh) {
1165                $header .= join("\n", @xh) . "\n";
1166        }
1167
1168        my @sendmail_parameters = ('-i', @recipients);
1169        my $raw_from = $sanitized_sender;
1170        if (defined $envelope_sender && $envelope_sender ne "auto") {
1171                $raw_from = $envelope_sender;
1172        }
1173        $raw_from = extract_valid_address($raw_from);
1174        unshift (@sendmail_parameters,
1175                        '-f', $raw_from) if(defined $envelope_sender);
1176
1177        if ($needs_confirm && !$dry_run) {
1178                print "\n$header\n";
1179                if ($needs_confirm eq "inform") {
1180                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1181                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1182                        print "    The Cc list above has been expanded by additional\n";
1183                        print "    addresses found in the patch commit message. By default\n";
1184                        print "    send-email prompts before sending whenever this occurs.\n";
1185                        print "    This behavior is controlled by the sendemail.confirm\n";
1186                        print "    configuration setting.\n";
1187                        print "\n";
1188                        print "    For additional information, run 'git send-email --help'.\n";
1189                        print "    To retain the current behavior, but squelch this message,\n";
1190                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
1191                }
1192                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
1193                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1194                         default => $ask_default);
1195                die "Send this email reply required" unless defined $_;
1196                if (/^n/i) {
1197                        return 0;
1198                } elsif (/^q/i) {
1199                        cleanup_compose_files();
1200                        exit(0);
1201                } elsif (/^a/i) {
1202                        $confirm = 'never';
1203                }
1204        }
1205
1206        unshift (@sendmail_parameters, @smtp_server_options);
1207
1208        if ($dry_run) {
1209                # We don't want to send the email.
1210        } elsif ($smtp_server =~ m#^/#) {
1211                my $pid = open my $sm, '|-';
1212                defined $pid or die $!;
1213                if (!$pid) {
1214                        exec($smtp_server, @sendmail_parameters) or die $!;
1215                }
1216                print $sm "$header\n$message";
1217                close $sm or die $!;
1218        } else {
1219
1220                if (!defined $smtp_server) {
1221                        die "The required SMTP server is not properly defined."
1222                }
1223
1224                if ($smtp_encryption eq 'ssl') {
1225                        $smtp_server_port ||= 465; # ssmtp
1226                        require Net::SMTP::SSL;
1227                        $smtp_domain ||= maildomain();
1228                        $smtp ||= Net::SMTP::SSL->new($smtp_server,
1229                                                      Hello => $smtp_domain,
1230                                                      Port => $smtp_server_port,
1231                                                      ssl_verify_params());
1232                }
1233                else {
1234                        require Net::SMTP;
1235                        $smtp_domain ||= maildomain();
1236                        $smtp ||= Net::SMTP->new(smtp_host_string(),
1237                                                 Hello => $smtp_domain,
1238                                                 Debug => $debug_net_smtp);
1239                        if ($smtp_encryption eq 'tls' && $smtp) {
1240                                require Net::SMTP::SSL;
1241                                $smtp->command('STARTTLS');
1242                                $smtp->response();
1243                                if ($smtp->code == 220) {
1244                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1245                                                                          ssl_verify_params())
1246                                                or die "STARTTLS failed! ".$smtp->message;
1247                                        $smtp_encryption = '';
1248                                        # Send EHLO again to receive fresh
1249                                        # supported commands
1250                                        $smtp->hello($smtp_domain);
1251                                } else {
1252                                        die "Server does not support STARTTLS! ".$smtp->message;
1253                                }
1254                        }
1255                }
1256
1257                if (!$smtp) {
1258                        die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ",
1259                            "VALUES: server=$smtp_server ",
1260                            "encryption=$smtp_encryption ",
1261                            "hello=$smtp_domain",
1262                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1263                }
1264
1265                smtp_auth_maybe or die $smtp->message;
1266
1267                $smtp->mail( $raw_from ) or die $smtp->message;
1268                $smtp->to( @recipients ) or die $smtp->message;
1269                $smtp->data or die $smtp->message;
1270                $smtp->datasend("$header\n$message") or die $smtp->message;
1271                $smtp->dataend() or die $smtp->message;
1272                $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
1273        }
1274        if ($quiet) {
1275                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
1276        } else {
1277                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
1278                if ($smtp_server !~ m#^/#) {
1279                        print "Server: $smtp_server\n";
1280                        print "MAIL FROM:<$raw_from>\n";
1281                        foreach my $entry (@recipients) {
1282                            print "RCPT TO:<$entry>\n";
1283                        }
1284                } else {
1285                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1286                }
1287                print $header, "\n";
1288                if ($smtp) {
1289                        print "Result: ", $smtp->code, ' ',
1290                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1291                } else {
1292                        print "Result: OK\n";
1293                }
1294        }
1295
1296        return 1;
1297}
1298
1299$reply_to = $initial_reply_to;
1300$references = $initial_reply_to || '';
1301$subject = $initial_subject;
1302$message_num = 0;
1303
1304foreach my $t (@files) {
1305        open my $fh, "<", $t or die "can't open file $t";
1306
1307        my $author = undef;
1308        my $author_encoding;
1309        my $has_content_type;
1310        my $body_encoding;
1311        @to = ();
1312        @cc = ();
1313        @xh = ();
1314        my $input_format = undef;
1315        my @header = ();
1316        $message = "";
1317        $message_num++;
1318        # First unfold multiline header fields
1319        while(<$fh>) {
1320                last if /^\s*$/;
1321                if (/^\s+\S/ and @header) {
1322                        chomp($header[$#header]);
1323                        s/^\s+/ /;
1324                        $header[$#header] .= $_;
1325            } else {
1326                        push(@header, $_);
1327                }
1328        }
1329        # Now parse the header
1330        foreach(@header) {
1331                if (/^From /) {
1332                        $input_format = 'mbox';
1333                        next;
1334                }
1335                chomp;
1336                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1337                        $input_format = 'mbox';
1338                }
1339
1340                if (defined $input_format && $input_format eq 'mbox') {
1341                        if (/^Subject:\s+(.*)$/i) {
1342                                $subject = $1;
1343                        }
1344                        elsif (/^From:\s+(.*)$/i) {
1345                                ($author, $author_encoding) = unquote_rfc2047($1);
1346                                next if $suppress_cc{'author'};
1347                                next if $suppress_cc{'self'} and $author eq $sender;
1348                                printf("(mbox) Adding cc: %s from line '%s'\n",
1349                                        $1, $_) unless $quiet;
1350                                push @cc, $1;
1351                        }
1352                        elsif (/^To:\s+(.*)$/i) {
1353                                foreach my $addr (parse_address_line($1)) {
1354                                        printf("(mbox) Adding to: %s from line '%s'\n",
1355                                                $addr, $_) unless $quiet;
1356                                        push @to, $addr;
1357                                }
1358                        }
1359                        elsif (/^Cc:\s+(.*)$/i) {
1360                                foreach my $addr (parse_address_line($1)) {
1361                                        if (unquote_rfc2047($addr) eq $sender) {
1362                                                next if ($suppress_cc{'self'});
1363                                        } else {
1364                                                next if ($suppress_cc{'cc'});
1365                                        }
1366                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1367                                                $addr, $_) unless $quiet;
1368                                        push @cc, $addr;
1369                                }
1370                        }
1371                        elsif (/^Content-type:/i) {
1372                                $has_content_type = 1;
1373                                if (/charset="?([^ "]+)/) {
1374                                        $body_encoding = $1;
1375                                }
1376                                push @xh, $_;
1377                        }
1378                        elsif (/^Message-Id: (.*)/i) {
1379                                $message_id = $1;
1380                        }
1381                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1382                                push @xh, $_;
1383                        }
1384
1385                } else {
1386                        # In the traditional
1387                        # "send lots of email" format,
1388                        # line 1 = cc
1389                        # line 2 = subject
1390                        # So let's support that, too.
1391                        $input_format = 'lots';
1392                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1393                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1394                                        $_, $_) unless $quiet;
1395                                push @cc, $_;
1396                        } elsif (!defined $subject) {
1397                                $subject = $_;
1398                        }
1399                }
1400        }
1401        # Now parse the message body
1402        while(<$fh>) {
1403                $message .=  $_;
1404                if (/^(Signed-off-by|Cc): (.*)$/i) {
1405                        chomp;
1406                        my ($what, $c) = ($1, $2);
1407                        chomp $c;
1408                        if ($c eq $sender) {
1409                                next if ($suppress_cc{'self'});
1410                        } else {
1411                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1412                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1413                        }
1414                        push @cc, $c;
1415                        printf("(body) Adding cc: %s from line '%s'\n",
1416                                $c, $_) unless $quiet;
1417                }
1418        }
1419        close $fh;
1420
1421        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1422                if defined $to_cmd;
1423        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1424                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1425
1426        if ($broken_encoding{$t} && !$has_content_type) {
1427                $has_content_type = 1;
1428                push @xh, "MIME-Version: 1.0",
1429                        "Content-Type: text/plain; charset=$auto_8bit_encoding",
1430                        "Content-Transfer-Encoding: 8bit";
1431                $body_encoding = $auto_8bit_encoding;
1432        }
1433
1434        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1435                $subject = quote_subject($subject, $auto_8bit_encoding);
1436        }
1437
1438        if (defined $author and $author ne $sender) {
1439                $message = "From: $author\n\n$message";
1440                if (defined $author_encoding) {
1441                        if ($has_content_type) {
1442                                if ($body_encoding eq $author_encoding) {
1443                                        # ok, we already have the right encoding
1444                                }
1445                                else {
1446                                        # uh oh, we should re-encode
1447                                }
1448                        }
1449                        else {
1450                                $has_content_type = 1;
1451                                push @xh,
1452                                  'MIME-Version: 1.0',
1453                                  "Content-Type: text/plain; charset=$author_encoding",
1454                                  'Content-Transfer-Encoding: 8bit';
1455                        }
1456                }
1457        }
1458
1459        $needs_confirm = (
1460                $confirm eq "always" or
1461                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1462                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1463        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1464
1465        @to = validate_address_list(sanitize_address_list(@to));
1466        @cc = validate_address_list(sanitize_address_list(@cc));
1467
1468        @to = (@initial_to, @to);
1469        @cc = (@initial_cc, @cc);
1470
1471        my $message_was_sent = send_message();
1472
1473        # set up for the next message
1474        if ($thread && $message_was_sent &&
1475                (chain_reply_to() || !defined $reply_to || length($reply_to) == 0 ||
1476                $message_num == 1)) {
1477                $reply_to = $message_id;
1478                if (length $references > 0) {
1479                        $references .= "\n $message_id";
1480                } else {
1481                        $references = "$message_id";
1482                }
1483        }
1484        $message_id = undef;
1485}
1486
1487# Execute a command (e.g. $to_cmd) to get a list of email addresses
1488# and return a results array
1489sub recipients_cmd {
1490        my ($prefix, $what, $cmd, $file) = @_;
1491
1492        my $sanitized_sender = sanitize_address($sender);
1493        my @addresses = ();
1494        open my $fh, "-|", "$cmd \Q$file\E"
1495            or die "($prefix) Could not execute '$cmd'";
1496        while (my $address = <$fh>) {
1497                $address =~ s/^\s*//g;
1498                $address =~ s/\s*$//g;
1499                $address = sanitize_address($address);
1500                next if ($address eq $sanitized_sender and $suppress_from);
1501                push @addresses, $address;
1502                printf("($prefix) Adding %s: %s from: '%s'\n",
1503                       $what, $address, $cmd) unless $quiet;
1504                }
1505        close $fh
1506            or die "($prefix) failed to close pipe to '$cmd'";
1507        return @addresses;
1508}
1509
1510cleanup_compose_files();
1511
1512sub cleanup_compose_files {
1513        unlink($compose_filename, $compose_filename . ".final") if $compose;
1514}
1515
1516$smtp->quit if $smtp;
1517
1518sub unique_email_list {
1519        my %seen;
1520        my @emails;
1521
1522        foreach my $entry (@_) {
1523                my $clean = extract_valid_address_or_die($entry);
1524                $seen{$clean} ||= 0;
1525                next if $seen{$clean}++;
1526                push @emails, $entry;
1527        }
1528        return @emails;
1529}
1530
1531sub validate_patch {
1532        my $fn = shift;
1533        open(my $fh, '<', $fn)
1534                or die "unable to open $fn: $!\n";
1535        while (my $line = <$fh>) {
1536                if (length($line) > 998) {
1537                        return "$.: patch contains a line longer than 998 characters";
1538                }
1539        }
1540        return;
1541}
1542
1543sub file_has_nonascii {
1544        my $fn = shift;
1545        open(my $fh, '<', $fn)
1546                or die "unable to open $fn: $!\n";
1547        while (my $line = <$fh>) {
1548                return 1 if $line =~ /[^[:ascii:]]/;
1549        }
1550        return 0;
1551}
1552
1553sub body_or_subject_has_nonascii {
1554        my $fn = shift;
1555        open(my $fh, '<', $fn)
1556                or die "unable to open $fn: $!\n";
1557        while (my $line = <$fh>) {
1558                last if $line =~ /^$/;
1559                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1560        }
1561        while (my $line = <$fh>) {
1562                return 1 if $line =~ /[^[:ascii:]]/;
1563        }
1564        return 0;
1565}