486cb36f27c8f35df8a5deb7b28fc0a33931f3db
   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-]xmailer                 * Add "X-Mailer:" header (default).
  58    --[no-]annotate                * Review each patch that will be sent in an editor.
  59    --compose                      * Open an editor for introduction.
  60    --compose-encoding      <str>  * Encoding to assume for introduction.
  61    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  62    --transfer-encoding     <str>  * Transfer encoding to use (quoted-printable, 8bit, base64)
  63
  64  Sending:
  65    --envelope-sender       <str>  * Email envelope sender.
  66    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  67                                     is optional. Default 'localhost'.
  68    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  69    --smtp-server-port      <int>  * Outgoing SMTP server port.
  70    --smtp-user             <str>  * Username for SMTP-AUTH.
  71    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  72    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  73    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  74    --smtp-ssl-cert-path    <str>  * Path to ca-certificates (either directory or file).
  75                                     Pass an empty string to disable certificate
  76                                     verification.
  77    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  78    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  79
  80  Automating:
  81    --identity              <str>  * Use the sendemail.<id> options.
  82    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  83    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  84    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  85    --[no-]cc-cover                * Email Cc: addresses in the cover letter.
  86    --[no-]to-cover                * Email To: addresses in the cover letter.
  87    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  88    --[no-]suppress-from           * Send to self. Default off.
  89    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
  90    --[no-]thread                  * Use In-Reply-To: field. Default on.
  91
  92  Administering:
  93    --confirm               <str>  * Confirm recipients before sending;
  94                                     auto, cc, compose, always, or never.
  95    --quiet                        * Output one line of info per email.
  96    --dry-run                      * Don't actually send the emails.
  97    --[no-]validate                * Perform patch sanity checks. Default on.
  98    --[no-]format-patch            * understand any non optional arguments as
  99                                     `git format-patch` ones.
 100    --force                        * Send even if safety checks would prevent it.
 101
 102EOT
 103        exit(1);
 104}
 105
 106# most mail servers generate the Date: header, but not all...
 107sub format_2822_time {
 108        my ($time) = @_;
 109        my @localtm = localtime($time);
 110        my @gmttm = gmtime($time);
 111        my $localmin = $localtm[1] + $localtm[2] * 60;
 112        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 113        if ($localtm[0] != $gmttm[0]) {
 114                die "local zone differs from GMT by a non-minute interval\n";
 115        }
 116        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 117                $localmin += 1440;
 118        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 119                $localmin -= 1440;
 120        } elsif ($gmttm[6] != $localtm[6]) {
 121                die "local time offset greater than or equal to 24 hours\n";
 122        }
 123        my $offset = $localmin - $gmtmin;
 124        my $offhour = $offset / 60;
 125        my $offmin = abs($offset % 60);
 126        if (abs($offhour) >= 24) {
 127                die ("local time offset greater than or equal to 24 hours\n");
 128        }
 129
 130        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 131                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 132                       $localtm[3],
 133                       qw(Jan Feb Mar Apr May Jun
 134                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 135                       $localtm[5]+1900,
 136                       $localtm[2],
 137                       $localtm[1],
 138                       $localtm[0],
 139                       ($offset >= 0) ? '+' : '-',
 140                       abs($offhour),
 141                       $offmin,
 142                       );
 143}
 144
 145my $have_email_valid = eval { require Email::Valid; 1 };
 146my $have_mail_address = eval { require Mail::Address; 1 };
 147my $smtp;
 148my $auth;
 149
 150# Regexes for RFC 2047 productions.
 151my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/;
 152my $re_encoded_text = qr/[^? \000-\037\177-\377]+/;
 153my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 154
 155# Variables we fill in automatically, or via prompting:
 156my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 157        $initial_reply_to,$initial_subject,@files,
 158        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 159
 160my $envelope_sender;
 161
 162# Example reply to:
 163#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 164
 165my $repo = eval { Git->repository() };
 166my @repo = $repo ? ($repo) : ();
 167my $term = eval {
 168        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 169                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 170                : new Term::ReadLine 'git-send-email';
 171};
 172if ($@) {
 173        $term = new FakeTerm "$@: going non-interactive";
 174}
 175
 176# Behavior modification variables
 177my ($quiet, $dry_run) = (0, 0);
 178my $format_patch;
 179my $compose_filename;
 180my $force = 0;
 181
 182# Handle interactive edition of files.
 183my $multiedit;
 184my $editor;
 185
 186sub do_edit {
 187        if (!defined($editor)) {
 188                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 189        }
 190        if (defined($multiedit) && !$multiedit) {
 191                map {
 192                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 193                        if (($? & 127) || ($? >> 8)) {
 194                                die("the editor exited uncleanly, aborting everything");
 195                        }
 196                } @_;
 197        } else {
 198                system('sh', '-c', $editor.' "$@"', $editor, @_);
 199                if (($? & 127) || ($? >> 8)) {
 200                        die("the editor exited uncleanly, aborting everything");
 201                }
 202        }
 203}
 204
 205# Variables with corresponding config settings
 206my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 207my ($cover_cc, $cover_to);
 208my ($to_cmd, $cc_cmd);
 209my ($smtp_server, $smtp_server_port, @smtp_server_options);
 210my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 211my ($identity, $aliasfiletype, @alias_files, $smtp_domain);
 212my ($validate, $confirm);
 213my (@suppress_cc);
 214my ($auto_8bit_encoding);
 215my ($compose_encoding);
 216my ($target_xfer_encoding);
 217
 218my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 219
 220my %config_bool_settings = (
 221    "thread" => [\$thread, 1],
 222    "chainreplyto" => [\$chain_reply_to, 0],
 223    "suppressfrom" => [\$suppress_from, undef],
 224    "signedoffbycc" => [\$signed_off_by_cc, undef],
 225    "cccover" => [\$cover_cc, undef],
 226    "tocover" => [\$cover_to, undef],
 227    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 228    "validate" => [\$validate, 1],
 229    "multiedit" => [\$multiedit, undef],
 230    "annotate" => [\$annotate, undef],
 231    "xmailer" => [\$use_xmailer, 1]
 232);
 233
 234my %config_settings = (
 235    "smtpserver" => \$smtp_server,
 236    "smtpserverport" => \$smtp_server_port,
 237    "smtpserveroption" => \@smtp_server_options,
 238    "smtpuser" => \$smtp_authuser,
 239    "smtppass" => \$smtp_authpass,
 240    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 241    "smtpdomain" => \$smtp_domain,
 242    "to" => \@initial_to,
 243    "tocmd" => \$to_cmd,
 244    "cc" => \@initial_cc,
 245    "cccmd" => \$cc_cmd,
 246    "aliasfiletype" => \$aliasfiletype,
 247    "bcc" => \@bcclist,
 248    "suppresscc" => \@suppress_cc,
 249    "envelopesender" => \$envelope_sender,
 250    "confirm"   => \$confirm,
 251    "from" => \$sender,
 252    "assume8bitencoding" => \$auto_8bit_encoding,
 253    "composeencoding" => \$compose_encoding,
 254    "transferencoding" => \$target_xfer_encoding,
 255);
 256
 257my %config_path_settings = (
 258    "aliasesfile" => \@alias_files,
 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                    "no-chain-reply-to" => sub {$chain_reply_to = 0},
 303                    "smtp-server=s" => \$smtp_server,
 304                    "smtp-server-option=s" => \@smtp_server_options,
 305                    "smtp-server-port=s" => \$smtp_server_port,
 306                    "smtp-user=s" => \$smtp_authuser,
 307                    "smtp-pass:s" => \$smtp_authpass,
 308                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 309                    "smtp-encryption=s" => \$smtp_encryption,
 310                    "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path,
 311                    "smtp-debug:i" => \$debug_net_smtp,
 312                    "smtp-domain:s" => \$smtp_domain,
 313                    "identity=s" => \$identity,
 314                    "annotate!" => \$annotate,
 315                    "no-annotate" => sub {$annotate = 0},
 316                    "compose" => \$compose,
 317                    "quiet" => \$quiet,
 318                    "cc-cmd=s" => \$cc_cmd,
 319                    "suppress-from!" => \$suppress_from,
 320                    "no-suppress-from" => sub {$suppress_from = 0},
 321                    "suppress-cc=s" => \@suppress_cc,
 322                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 323                    "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0},
 324                    "cc-cover|cc-cover!" => \$cover_cc,
 325                    "no-cc-cover" => sub {$cover_cc = 0},
 326                    "to-cover|to-cover!" => \$cover_to,
 327                    "no-to-cover" => sub {$cover_to = 0},
 328                    "confirm=s" => \$confirm,
 329                    "dry-run" => \$dry_run,
 330                    "envelope-sender=s" => \$envelope_sender,
 331                    "thread!" => \$thread,
 332                    "no-thread" => sub {$thread = 0},
 333                    "validate!" => \$validate,
 334                    "no-validate" => sub {$validate = 0},
 335                    "transfer-encoding=s" => \$target_xfer_encoding,
 336                    "format-patch!" => \$format_patch,
 337                    "no-format-patch" => sub {$format_patch = 0},
 338                    "8bit-encoding=s" => \$auto_8bit_encoding,
 339                    "compose-encoding=s" => \$compose_encoding,
 340                    "force" => \$force,
 341                    "xmailer!" => \$use_xmailer,
 342                    "no-xmailer" => sub {$use_xmailer = 0},
 343         );
 344
 345usage() if $help;
 346unless ($rc) {
 347    usage();
 348}
 349
 350die "Cannot run git format-patch from outside a repository\n"
 351        if $format_patch and not $repo;
 352
 353# Now, let's fill any that aren't set in with defaults:
 354
 355sub read_config {
 356        my ($prefix) = @_;
 357
 358        foreach my $setting (keys %config_bool_settings) {
 359                my $target = $config_bool_settings{$setting}->[0];
 360                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 361        }
 362
 363        foreach my $setting (keys %config_path_settings) {
 364                my $target = $config_path_settings{$setting};
 365                if (ref($target) eq "ARRAY") {
 366                        unless (@$target) {
 367                                my @values = Git::config_path(@repo, "$prefix.$setting");
 368                                @$target = @values if (@values && defined $values[0]);
 369                        }
 370                }
 371                else {
 372                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 373                }
 374        }
 375
 376        foreach my $setting (keys %config_settings) {
 377                my $target = $config_settings{$setting};
 378                next if $setting eq "to" and defined $no_to;
 379                next if $setting eq "cc" and defined $no_cc;
 380                next if $setting eq "bcc" and defined $no_bcc;
 381                if (ref($target) eq "ARRAY") {
 382                        unless (@$target) {
 383                                my @values = Git::config(@repo, "$prefix.$setting");
 384                                @$target = @values if (@values && defined $values[0]);
 385                        }
 386                }
 387                else {
 388                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 389                }
 390        }
 391
 392        if (!defined $smtp_encryption) {
 393                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 394                if (defined $enc) {
 395                        $smtp_encryption = $enc;
 396                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 397                        $smtp_encryption = 'ssl';
 398                }
 399        }
 400}
 401
 402# read configuration from [sendemail "$identity"], fall back on [sendemail]
 403$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 404read_config("sendemail.$identity") if (defined $identity);
 405read_config("sendemail");
 406
 407# fall back on builtin bool defaults
 408foreach my $setting (values %config_bool_settings) {
 409        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 410}
 411
 412# 'default' encryption is none -- this only prevents a warning
 413$smtp_encryption = '' unless (defined $smtp_encryption);
 414
 415# Set CC suppressions
 416my(%suppress_cc);
 417if (@suppress_cc) {
 418        foreach my $entry (@suppress_cc) {
 419                die "Unknown --suppress-cc field: '$entry'\n"
 420                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 421                $suppress_cc{$entry} = 1;
 422        }
 423}
 424
 425if ($suppress_cc{'all'}) {
 426        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 427                $suppress_cc{$entry} = 1;
 428        }
 429        delete $suppress_cc{'all'};
 430}
 431
 432# If explicit old-style ones are specified, they trump --suppress-cc.
 433$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 434$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 435
 436if ($suppress_cc{'body'}) {
 437        foreach my $entry (qw (sob bodycc)) {
 438                $suppress_cc{$entry} = 1;
 439        }
 440        delete $suppress_cc{'body'};
 441}
 442
 443# Set confirm's default value
 444my $confirm_unconfigured = !defined $confirm;
 445if ($confirm_unconfigured) {
 446        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 447};
 448die "Unknown --confirm setting: '$confirm'\n"
 449        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 450
 451# Debugging, print out the suppressions.
 452if (0) {
 453        print "suppressions:\n";
 454        foreach my $entry (keys %suppress_cc) {
 455                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 456        }
 457}
 458
 459my ($repoauthor, $repocommitter);
 460($repoauthor) = Git::ident_person(@repo, 'author');
 461($repocommitter) = Git::ident_person(@repo, 'committer');
 462
 463# Verify the user input
 464
 465foreach my $entry (@initial_to) {
 466        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 467}
 468
 469foreach my $entry (@initial_cc) {
 470        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 471}
 472
 473foreach my $entry (@bcclist) {
 474        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 475}
 476
 477sub parse_address_line {
 478        if ($have_mail_address) {
 479                return map { $_->format } Mail::Address->parse($_[0]);
 480        } else {
 481                return Git::parse_mailboxes($_[0]);
 482        }
 483}
 484
 485sub split_addrs {
 486        return quotewords('\s*,\s*', 1, @_);
 487}
 488
 489my %aliases;
 490my %parse_alias = (
 491        # multiline formats can be supported in the future
 492        mutt => sub { my $fh = shift; while (<$fh>) {
 493                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 494                        my ($alias, $addr) = ($1, $2);
 495                        $addr =~ s/#.*$//; # mutt allows # comments
 496                         # commas delimit multiple addresses
 497                        $aliases{$alias} = [ split_addrs($addr) ];
 498                }}},
 499        mailrc => sub { my $fh = shift; while (<$fh>) {
 500                if (/^alias\s+(\S+)\s+(.*)$/) {
 501                        # spaces delimit multiple addresses
 502                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 503                }}},
 504        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 505                for (my $x = ''; defined($x); $x = $_) {
 506                        chomp $x;
 507                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 508                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 509                        $aliases{$1} = [ split_addrs($2) ];
 510                }},
 511        elm => sub  { my $fh = shift;
 512                      while (<$fh>) {
 513                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 514                              my ($alias, $addr) = ($1, $2);
 515                               $aliases{$alias} = [ split_addrs($addr) ];
 516                          }
 517                      } },
 518
 519        gnus => sub { my $fh = shift; while (<$fh>) {
 520                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 521                        $aliases{$1} = [ $2 ];
 522                }}}
 523);
 524
 525if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 526        foreach my $file (@alias_files) {
 527                open my $fh, '<', $file or die "opening $file: $!\n";
 528                $parse_alias{$aliasfiletype}->($fh);
 529                close $fh;
 530        }
 531}
 532
 533# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 534# $f is a revision list specification to be passed to format-patch.
 535sub is_format_patch_arg {
 536        return unless $repo;
 537        my $f = shift;
 538        try {
 539                $repo->command('rev-parse', '--verify', '--quiet', $f);
 540                if (defined($format_patch)) {
 541                        return $format_patch;
 542                }
 543                die(<<EOF);
 544File '$f' exists but it could also be the range of commits
 545to produce patches for.  Please disambiguate by...
 546
 547    * Saying "./$f" if you mean a file; or
 548    * Giving --format-patch option if you mean a range.
 549EOF
 550        } catch Git::Error::Command with {
 551                # Not a valid revision.  Treat it as a filename.
 552                return 0;
 553        }
 554}
 555
 556# Now that all the defaults are set, process the rest of the command line
 557# arguments and collect up the files that need to be processed.
 558my @rev_list_opts;
 559while (defined(my $f = shift @ARGV)) {
 560        if ($f eq "--") {
 561                push @rev_list_opts, "--", @ARGV;
 562                @ARGV = ();
 563        } elsif (-d $f and !is_format_patch_arg($f)) {
 564                opendir my $dh, $f
 565                        or die "Failed to opendir $f: $!";
 566
 567                push @files, grep { -f $_ } map { catfile($f, $_) }
 568                                sort readdir $dh;
 569                closedir $dh;
 570        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 571                push @files, $f;
 572        } else {
 573                push @rev_list_opts, $f;
 574        }
 575}
 576
 577if (@rev_list_opts) {
 578        die "Cannot run git format-patch from outside a repository\n"
 579                unless $repo;
 580        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 581}
 582
 583if ($validate) {
 584        foreach my $f (@files) {
 585                unless (-p $f) {
 586                        my $error = validate_patch($f);
 587                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 588                }
 589        }
 590}
 591
 592if (@files) {
 593        unless ($quiet) {
 594                print $_,"\n" for (@files);
 595        }
 596} else {
 597        print STDERR "\nNo patch files specified!\n\n";
 598        usage();
 599}
 600
 601sub get_patch_subject {
 602        my $fn = shift;
 603        open (my $fh, '<', $fn);
 604        while (my $line = <$fh>) {
 605                next unless ($line =~ /^Subject: (.*)$/);
 606                close $fh;
 607                return "GIT: $1\n";
 608        }
 609        close $fh;
 610        die "No subject line in $fn ?";
 611}
 612
 613if ($compose) {
 614        # Note that this does not need to be secure, but we will make a small
 615        # effort to have it be unique
 616        $compose_filename = ($repo ?
 617                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 618                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 619        open my $c, ">", $compose_filename
 620                or die "Failed to open for writing $compose_filename: $!";
 621
 622
 623        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 624        my $tpl_subject = $initial_subject || '';
 625        my $tpl_reply_to = $initial_reply_to || '';
 626
 627        print $c <<EOT;
 628From $tpl_sender # This line is ignored.
 629GIT: Lines beginning in "GIT:" will be removed.
 630GIT: Consider including an overall diffstat or table of contents
 631GIT: for the patch you are writing.
 632GIT:
 633GIT: Clear the body content if you don't wish to send a summary.
 634From: $tpl_sender
 635Subject: $tpl_subject
 636In-Reply-To: $tpl_reply_to
 637
 638EOT
 639        for my $f (@files) {
 640                print $c get_patch_subject($f);
 641        }
 642        close $c;
 643
 644        if ($annotate) {
 645                do_edit($compose_filename, @files);
 646        } else {
 647                do_edit($compose_filename);
 648        }
 649
 650        open my $c2, ">", $compose_filename . ".final"
 651                or die "Failed to open $compose_filename.final : " . $!;
 652
 653        open $c, "<", $compose_filename
 654                or die "Failed to open $compose_filename : " . $!;
 655
 656        my $need_8bit_cte = file_has_nonascii($compose_filename);
 657        my $in_body = 0;
 658        my $summary_empty = 1;
 659        if (!defined $compose_encoding) {
 660                $compose_encoding = "UTF-8";
 661        }
 662        while(<$c>) {
 663                next if m/^GIT:/;
 664                if ($in_body) {
 665                        $summary_empty = 0 unless (/^\n$/);
 666                } elsif (/^\n$/) {
 667                        $in_body = 1;
 668                        if ($need_8bit_cte) {
 669                                print $c2 "MIME-Version: 1.0\n",
 670                                         "Content-Type: text/plain; ",
 671                                           "charset=$compose_encoding\n",
 672                                         "Content-Transfer-Encoding: 8bit\n";
 673                        }
 674                } elsif (/^MIME-Version:/i) {
 675                        $need_8bit_cte = 0;
 676                } elsif (/^Subject:\s*(.+)\s*$/i) {
 677                        $initial_subject = $1;
 678                        my $subject = $initial_subject;
 679                        $_ = "Subject: " .
 680                                quote_subject($subject, $compose_encoding) .
 681                                "\n";
 682                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 683                        $initial_reply_to = $1;
 684                        next;
 685                } elsif (/^From:\s*(.+)\s*$/i) {
 686                        $sender = $1;
 687                        next;
 688                } elsif (/^(?:To|Cc|Bcc):/i) {
 689                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 690                        next;
 691                }
 692                print $c2 $_;
 693        }
 694        close $c;
 695        close $c2;
 696
 697        if ($summary_empty) {
 698                print "Summary email is empty, skipping it\n";
 699                $compose = -1;
 700        }
 701} elsif ($annotate) {
 702        do_edit(@files);
 703}
 704
 705sub ask {
 706        my ($prompt, %arg) = @_;
 707        my $valid_re = $arg{valid_re};
 708        my $default = $arg{default};
 709        my $confirm_only = $arg{confirm_only};
 710        my $resp;
 711        my $i = 0;
 712        return defined $default ? $default : undef
 713                unless defined $term->IN and defined fileno($term->IN) and
 714                       defined $term->OUT and defined fileno($term->OUT);
 715        while ($i++ < 10) {
 716                $resp = $term->readline($prompt);
 717                if (!defined $resp) { # EOF
 718                        print "\n";
 719                        return defined $default ? $default : undef;
 720                }
 721                if ($resp eq '' and defined $default) {
 722                        return $default;
 723                }
 724                if (!defined $valid_re or $resp =~ /$valid_re/) {
 725                        return $resp;
 726                }
 727                if ($confirm_only) {
 728                        my $yesno = $term->readline("Are you sure you want to use <$resp> [y/N]? ");
 729                        if (defined $yesno && $yesno =~ /y/i) {
 730                                return $resp;
 731                        }
 732                }
 733        }
 734        return;
 735}
 736
 737my %broken_encoding;
 738
 739sub file_declares_8bit_cte {
 740        my $fn = shift;
 741        open (my $fh, '<', $fn);
 742        while (my $line = <$fh>) {
 743                last if ($line =~ /^$/);
 744                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 745        }
 746        close $fh;
 747        return 0;
 748}
 749
 750foreach my $f (@files) {
 751        next unless (body_or_subject_has_nonascii($f)
 752                     && !file_declares_8bit_cte($f));
 753        $broken_encoding{$f} = 1;
 754}
 755
 756if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 757        print "The following files are 8bit, but do not declare " .
 758                "a Content-Transfer-Encoding.\n";
 759        foreach my $f (sort keys %broken_encoding) {
 760                print "    $f\n";
 761        }
 762        $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
 763                                  valid_re => qr/.{4}/, confirm_only => 1,
 764                                  default => "UTF-8");
 765}
 766
 767if (!$force) {
 768        for my $f (@files) {
 769                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 770                        die "Refusing to send because the patch\n\t$f\n"
 771                                . "has the template subject '*** SUBJECT HERE ***'. "
 772                                . "Pass --force if you really want to send.\n";
 773                }
 774        }
 775}
 776
 777if (defined $sender) {
 778        ($sender) = expand_aliases($sender);
 779} else {
 780        $sender = $repoauthor || $repocommitter || '';
 781}
 782
 783# $sender could be an already sanitized address
 784# (e.g. sendemail.from could be manually sanitized by user).
 785# But it's a no-op to run sanitize_address on an already sanitized address.
 786$sender = sanitize_address($sender);
 787
 788my $prompting = 0;
 789if (!@initial_to && !defined $to_cmd) {
 790        my $to = ask("Who should the emails be sent to (if any)? ",
 791                     default => "",
 792                     valid_re => qr/\@.*\./, confirm_only => 1);
 793        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 794        $prompting++;
 795}
 796
 797sub expand_aliases {
 798        return map { expand_one_alias($_) } @_;
 799}
 800
 801my %EXPANDED_ALIASES;
 802sub expand_one_alias {
 803        my $alias = shift;
 804        if ($EXPANDED_ALIASES{$alias}) {
 805                die "fatal: alias '$alias' expands to itself\n";
 806        }
 807        local $EXPANDED_ALIASES{$alias} = 1;
 808        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 809}
 810
 811@initial_to = process_address_list(@initial_to);
 812@initial_cc = process_address_list(@initial_cc);
 813@bcclist = process_address_list(@bcclist);
 814
 815if ($thread && !defined $initial_reply_to && $prompting) {
 816        $initial_reply_to = ask(
 817                "Message-ID to be used as In-Reply-To for the first email (if any)? ",
 818                default => "",
 819                valid_re => qr/\@.*\./, confirm_only => 1);
 820}
 821if (defined $initial_reply_to) {
 822        $initial_reply_to =~ s/^\s*<?//;
 823        $initial_reply_to =~ s/>?\s*$//;
 824        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 825}
 826
 827if (!defined $smtp_server) {
 828        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 829                if (-x $_) {
 830                        $smtp_server = $_;
 831                        last;
 832                }
 833        }
 834        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 835}
 836
 837if ($compose && $compose > 0) {
 838        @files = ($compose_filename . ".final", @files);
 839}
 840
 841# Variables we set as part of the loop over files
 842our ($message_id, %mail, $subject, $reply_to, $references, $message,
 843        $needs_confirm, $message_num, $ask_default);
 844
 845sub extract_valid_address {
 846        my $address = shift;
 847        my $local_part_regexp = qr/[^<>"\s@]+/;
 848        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 849
 850        # check for a local address:
 851        return $address if ($address =~ /^($local_part_regexp)$/);
 852
 853        $address =~ s/^\s*<(.*)>\s*$/$1/;
 854        if ($have_email_valid) {
 855                return scalar Email::Valid->address($address);
 856        }
 857
 858        # less robust/correct than the monster regexp in Email::Valid,
 859        # but still does a 99% job, and one less dependency
 860        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 861        return;
 862}
 863
 864sub extract_valid_address_or_die {
 865        my $address = shift;
 866        $address = extract_valid_address($address);
 867        die "error: unable to extract a valid address from: $address\n"
 868                if !$address;
 869        return $address;
 870}
 871
 872sub validate_address {
 873        my $address = shift;
 874        while (!extract_valid_address($address)) {
 875                print STDERR "error: unable to extract a valid address from: $address\n";
 876                $_ = ask("What to do with this address? ([q]uit|[d]rop|[e]dit): ",
 877                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 878                        default => 'q');
 879                if (/^d/i) {
 880                        return undef;
 881                } elsif (/^q/i) {
 882                        cleanup_compose_files();
 883                        exit(0);
 884                }
 885                $address = ask("Who should the email be sent to (if any)? ",
 886                        default => "",
 887                        valid_re => qr/\@.*\./, confirm_only => 1);
 888        }
 889        return $address;
 890}
 891
 892sub validate_address_list {
 893        return (grep { defined $_ }
 894                map { validate_address($_) } @_);
 895}
 896
 897# Usually don't need to change anything below here.
 898
 899# we make a "fake" message id by taking the current number
 900# of seconds since the beginning of Unix time and tacking on
 901# a random number to the end, in case we are called quicker than
 902# 1 second since the last time we were called.
 903
 904# We'll setup a template for the message id, using the "from" address:
 905
 906my ($message_id_stamp, $message_id_serial);
 907sub make_message_id {
 908        my $uniq;
 909        if (!defined $message_id_stamp) {
 910                $message_id_stamp = sprintf("%s-%s", time, $$);
 911                $message_id_serial = 0;
 912        }
 913        $message_id_serial++;
 914        $uniq = "$message_id_stamp-$message_id_serial";
 915
 916        my $du_part;
 917        for ($sender, $repocommitter, $repoauthor) {
 918                $du_part = extract_valid_address(sanitize_address($_));
 919                last if (defined $du_part and $du_part ne '');
 920        }
 921        if (not defined $du_part or $du_part eq '') {
 922                require Sys::Hostname;
 923                $du_part = 'user@' . Sys::Hostname::hostname();
 924        }
 925        my $message_id_template = "<%s-git-send-email-%s>";
 926        $message_id = sprintf($message_id_template, $uniq, $du_part);
 927        #print "new message id = $message_id\n"; # Was useful for debugging
 928}
 929
 930
 931
 932$time = time - scalar $#files;
 933
 934sub unquote_rfc2047 {
 935        local ($_) = @_;
 936        my $charset;
 937        my $sep = qr/[ \t]+/;
 938        s{$re_encoded_word(?:$sep$re_encoded_word)*}{
 939                my @words = split $sep, $&;
 940                foreach (@words) {
 941                        m/$re_encoded_word/;
 942                        $charset = $1;
 943                        my $encoding = $2;
 944                        my $text = $3;
 945                        if ($encoding eq 'q' || $encoding eq 'Q') {
 946                                $_ = $text;
 947                                s/_/ /g;
 948                                s/=([0-9A-F]{2})/chr(hex($1))/egi;
 949                        } else {
 950                                # other encodings not supported yet
 951                        }
 952                }
 953                join '', @words;
 954        }eg;
 955        return wantarray ? ($_, $charset) : $_;
 956}
 957
 958sub quote_rfc2047 {
 959        local $_ = shift;
 960        my $encoding = shift || 'UTF-8';
 961        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 962        s/(.*)/=\?$encoding\?q\?$1\?=/;
 963        return $_;
 964}
 965
 966sub is_rfc2047_quoted {
 967        my $s = shift;
 968        length($s) <= 75 &&
 969        $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o;
 970}
 971
 972sub subject_needs_rfc2047_quoting {
 973        my $s = shift;
 974
 975        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
 976}
 977
 978sub quote_subject {
 979        local $subject = shift;
 980        my $encoding = shift || 'UTF-8';
 981
 982        if (subject_needs_rfc2047_quoting($subject)) {
 983                return quote_rfc2047($subject, $encoding);
 984        }
 985        return $subject;
 986}
 987
 988# use the simplest quoting being able to handle the recipient
 989sub sanitize_address {
 990        my ($recipient) = @_;
 991
 992        # remove garbage after email address
 993        $recipient =~ s/(.*>).*$/$1/;
 994
 995        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 996
 997        if (not $recipient_name) {
 998                return $recipient;
 999        }
1000
1001        # if recipient_name is already quoted, do nothing
1002        if (is_rfc2047_quoted($recipient_name)) {
1003                return $recipient;
1004        }
1005
1006        # rfc2047 is needed if a non-ascii char is included
1007        if ($recipient_name =~ /[^[:ascii:]]/) {
1008                $recipient_name =~ s/^"(.*)"$/$1/;
1009                $recipient_name = quote_rfc2047($recipient_name);
1010        }
1011
1012        # double quotes are needed if specials or CTLs are included
1013        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
1014                $recipient_name =~ s/(["\\\r])/\\$1/g;
1015                $recipient_name = qq["$recipient_name"];
1016        }
1017
1018        return "$recipient_name $recipient_addr";
1019
1020}
1021
1022sub sanitize_address_list {
1023        return (map { sanitize_address($_) } @_);
1024}
1025
1026sub process_address_list {
1027        my @addr_list = expand_aliases(@_);
1028        @addr_list = sanitize_address_list(@addr_list);
1029        @addr_list = validate_address_list(@addr_list);
1030        return @addr_list;
1031}
1032
1033# Returns the local Fully Qualified Domain Name (FQDN) if available.
1034#
1035# Tightly configured MTAa require that a caller sends a real DNS
1036# domain name that corresponds the IP address in the HELO/EHLO
1037# handshake. This is used to verify the connection and prevent
1038# spammers from trying to hide their identity. If the DNS and IP don't
1039# match, the receiveing MTA may deny the connection.
1040#
1041# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1042#
1043# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1044# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1045#
1046# This maildomain*() code is based on ideas in Perl library Test::Reporter
1047# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1048
1049sub valid_fqdn {
1050        my $domain = shift;
1051        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1052}
1053
1054sub maildomain_net {
1055        my $maildomain;
1056
1057        if (eval { require Net::Domain; 1 }) {
1058                my $domain = Net::Domain::domainname();
1059                $maildomain = $domain if valid_fqdn($domain);
1060        }
1061
1062        return $maildomain;
1063}
1064
1065sub maildomain_mta {
1066        my $maildomain;
1067
1068        if (eval { require Net::SMTP; 1 }) {
1069                for my $host (qw(mailhost localhost)) {
1070                        my $smtp = Net::SMTP->new($host);
1071                        if (defined $smtp) {
1072                                my $domain = $smtp->domain;
1073                                $smtp->quit;
1074
1075                                $maildomain = $domain if valid_fqdn($domain);
1076
1077                                last if $maildomain;
1078                        }
1079                }
1080        }
1081
1082        return $maildomain;
1083}
1084
1085sub maildomain {
1086        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1087}
1088
1089sub smtp_host_string {
1090        if (defined $smtp_server_port) {
1091                return "$smtp_server:$smtp_server_port";
1092        } else {
1093                return $smtp_server;
1094        }
1095}
1096
1097# Returns 1 if authentication succeeded or was not necessary
1098# (smtp_user was not specified), and 0 otherwise.
1099
1100sub smtp_auth_maybe {
1101        if (!defined $smtp_authuser || $auth) {
1102                return 1;
1103        }
1104
1105        # Workaround AUTH PLAIN/LOGIN interaction defect
1106        # with Authen::SASL::Cyrus
1107        eval {
1108                require Authen::SASL;
1109                Authen::SASL->import(qw(Perl));
1110        };
1111
1112        # TODO: Authentication may fail not because credentials were
1113        # invalid but due to other reasons, in which we should not
1114        # reject credentials.
1115        $auth = Git::credential({
1116                'protocol' => 'smtp',
1117                'host' => smtp_host_string(),
1118                'username' => $smtp_authuser,
1119                # if there's no password, "git credential fill" will
1120                # give us one, otherwise it'll just pass this one.
1121                'password' => $smtp_authpass
1122        }, sub {
1123                my $cred = shift;
1124                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1125        });
1126
1127        return $auth;
1128}
1129
1130sub ssl_verify_params {
1131        eval {
1132                require IO::Socket::SSL;
1133                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1134        };
1135        if ($@) {
1136                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1137                return;
1138        }
1139
1140        if (!defined $smtp_ssl_cert_path) {
1141                # use the OpenSSL defaults
1142                return (SSL_verify_mode => SSL_VERIFY_PEER());
1143        }
1144
1145        if ($smtp_ssl_cert_path eq "") {
1146                return (SSL_verify_mode => SSL_VERIFY_NONE());
1147        } elsif (-d $smtp_ssl_cert_path) {
1148                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1149                        SSL_ca_path => $smtp_ssl_cert_path);
1150        } elsif (-f $smtp_ssl_cert_path) {
1151                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1152                        SSL_ca_file => $smtp_ssl_cert_path);
1153        } else {
1154                print STDERR "Not using SSL_VERIFY_PEER because the CA path does not exist.\n";
1155                return (SSL_verify_mode => SSL_VERIFY_NONE());
1156        }
1157}
1158
1159sub file_name_is_absolute {
1160        my ($path) = @_;
1161
1162        # msys does not grok DOS drive-prefixes
1163        if ($^O eq 'msys') {
1164                return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#)
1165        }
1166
1167        require File::Spec::Functions;
1168        return File::Spec::Functions::file_name_is_absolute($path);
1169}
1170
1171# Returns 1 if the message was sent, and 0 otherwise.
1172# In actuality, the whole program dies when there
1173# is an error sending a message.
1174
1175sub send_message {
1176        my @recipients = unique_email_list(@to);
1177        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1178                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1179                    }
1180               @cc);
1181        my $to = join (",\n\t", @recipients);
1182        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1183        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1184        my $date = format_2822_time($time++);
1185        my $gitversion = '@@GIT_VERSION@@';
1186        if ($gitversion =~ m/..GIT_VERSION../) {
1187            $gitversion = Git::version();
1188        }
1189
1190        my $cc = join(",\n\t", unique_email_list(@cc));
1191        my $ccline = "";
1192        if ($cc ne '') {
1193                $ccline = "\nCc: $cc";
1194        }
1195        make_message_id() unless defined($message_id);
1196
1197        my $header = "From: $sender
1198To: $to${ccline}
1199Subject: $subject
1200Date: $date
1201Message-Id: $message_id
1202";
1203        if ($use_xmailer) {
1204                $header .= "X-Mailer: git-send-email $gitversion\n";
1205        }
1206        if ($reply_to) {
1207
1208                $header .= "In-Reply-To: $reply_to\n";
1209                $header .= "References: $references\n";
1210        }
1211        if (@xh) {
1212                $header .= join("\n", @xh) . "\n";
1213        }
1214
1215        my @sendmail_parameters = ('-i', @recipients);
1216        my $raw_from = $sender;
1217        if (defined $envelope_sender && $envelope_sender ne "auto") {
1218                $raw_from = $envelope_sender;
1219        }
1220        $raw_from = extract_valid_address($raw_from);
1221        unshift (@sendmail_parameters,
1222                        '-f', $raw_from) if(defined $envelope_sender);
1223
1224        if ($needs_confirm && !$dry_run) {
1225                print "\n$header\n";
1226                if ($needs_confirm eq "inform") {
1227                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1228                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1229                        print "    The Cc list above has been expanded by additional\n";
1230                        print "    addresses found in the patch commit message. By default\n";
1231                        print "    send-email prompts before sending whenever this occurs.\n";
1232                        print "    This behavior is controlled by the sendemail.confirm\n";
1233                        print "    configuration setting.\n";
1234                        print "\n";
1235                        print "    For additional information, run 'git send-email --help'.\n";
1236                        print "    To retain the current behavior, but squelch this message,\n";
1237                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
1238                }
1239                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
1240                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1241                         default => $ask_default);
1242                die "Send this email reply required" unless defined $_;
1243                if (/^n/i) {
1244                        return 0;
1245                } elsif (/^q/i) {
1246                        cleanup_compose_files();
1247                        exit(0);
1248                } elsif (/^a/i) {
1249                        $confirm = 'never';
1250                }
1251        }
1252
1253        unshift (@sendmail_parameters, @smtp_server_options);
1254
1255        if ($dry_run) {
1256                # We don't want to send the email.
1257        } elsif (file_name_is_absolute($smtp_server)) {
1258                my $pid = open my $sm, '|-';
1259                defined $pid or die $!;
1260                if (!$pid) {
1261                        exec($smtp_server, @sendmail_parameters) or die $!;
1262                }
1263                print $sm "$header\n$message";
1264                close $sm or die $!;
1265        } else {
1266
1267                if (!defined $smtp_server) {
1268                        die "The required SMTP server is not properly defined."
1269                }
1270
1271                if ($smtp_encryption eq 'ssl') {
1272                        $smtp_server_port ||= 465; # ssmtp
1273                        require Net::SMTP::SSL;
1274                        $smtp_domain ||= maildomain();
1275                        require IO::Socket::SSL;
1276                        # Net::SMTP::SSL->new() does not forward any SSL options
1277                        IO::Socket::SSL::set_client_defaults(
1278                                ssl_verify_params());
1279                        $smtp ||= Net::SMTP::SSL->new($smtp_server,
1280                                                      Hello => $smtp_domain,
1281                                                      Port => $smtp_server_port,
1282                                                      Debug => $debug_net_smtp);
1283                }
1284                else {
1285                        require Net::SMTP;
1286                        $smtp_domain ||= maildomain();
1287                        $smtp_server_port ||= 25;
1288                        $smtp ||= Net::SMTP->new($smtp_server,
1289                                                 Hello => $smtp_domain,
1290                                                 Debug => $debug_net_smtp,
1291                                                 Port => $smtp_server_port);
1292                        if ($smtp_encryption eq 'tls' && $smtp) {
1293                                require Net::SMTP::SSL;
1294                                $smtp->command('STARTTLS');
1295                                $smtp->response();
1296                                if ($smtp->code == 220) {
1297                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1298                                                                          ssl_verify_params())
1299                                                or die "STARTTLS failed! ".IO::Socket::SSL::errstr();
1300                                        $smtp_encryption = '';
1301                                        # Send EHLO again to receive fresh
1302                                        # supported commands
1303                                        $smtp->hello($smtp_domain);
1304                                } else {
1305                                        die "Server does not support STARTTLS! ".$smtp->message;
1306                                }
1307                        }
1308                }
1309
1310                if (!$smtp) {
1311                        die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ",
1312                            "VALUES: server=$smtp_server ",
1313                            "encryption=$smtp_encryption ",
1314                            "hello=$smtp_domain",
1315                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1316                }
1317
1318                smtp_auth_maybe or die $smtp->message;
1319
1320                $smtp->mail( $raw_from ) or die $smtp->message;
1321                $smtp->to( @recipients ) or die $smtp->message;
1322                $smtp->data or die $smtp->message;
1323                $smtp->datasend("$header\n$message") or die $smtp->message;
1324                $smtp->dataend() or die $smtp->message;
1325                $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
1326        }
1327        if ($quiet) {
1328                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
1329        } else {
1330                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
1331                if (!file_name_is_absolute($smtp_server)) {
1332                        print "Server: $smtp_server\n";
1333                        print "MAIL FROM:<$raw_from>\n";
1334                        foreach my $entry (@recipients) {
1335                            print "RCPT TO:<$entry>\n";
1336                        }
1337                } else {
1338                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1339                }
1340                print $header, "\n";
1341                if ($smtp) {
1342                        print "Result: ", $smtp->code, ' ',
1343                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1344                } else {
1345                        print "Result: OK\n";
1346                }
1347        }
1348
1349        return 1;
1350}
1351
1352$reply_to = $initial_reply_to;
1353$references = $initial_reply_to || '';
1354$subject = $initial_subject;
1355$message_num = 0;
1356
1357foreach my $t (@files) {
1358        open my $fh, "<", $t or die "can't open file $t";
1359
1360        my $author = undef;
1361        my $sauthor = undef;
1362        my $author_encoding;
1363        my $has_content_type;
1364        my $body_encoding;
1365        my $xfer_encoding;
1366        my $has_mime_version;
1367        @to = ();
1368        @cc = ();
1369        @xh = ();
1370        my $input_format = undef;
1371        my @header = ();
1372        $message = "";
1373        $message_num++;
1374        # First unfold multiline header fields
1375        while(<$fh>) {
1376                last if /^\s*$/;
1377                if (/^\s+\S/ and @header) {
1378                        chomp($header[$#header]);
1379                        s/^\s+/ /;
1380                        $header[$#header] .= $_;
1381            } else {
1382                        push(@header, $_);
1383                }
1384        }
1385        # Now parse the header
1386        foreach(@header) {
1387                if (/^From /) {
1388                        $input_format = 'mbox';
1389                        next;
1390                }
1391                chomp;
1392                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1393                        $input_format = 'mbox';
1394                }
1395
1396                if (defined $input_format && $input_format eq 'mbox') {
1397                        if (/^Subject:\s+(.*)$/i) {
1398                                $subject = $1;
1399                        }
1400                        elsif (/^From:\s+(.*)$/i) {
1401                                ($author, $author_encoding) = unquote_rfc2047($1);
1402                                $sauthor = sanitize_address($author);
1403                                next if $suppress_cc{'author'};
1404                                next if $suppress_cc{'self'} and $sauthor eq $sender;
1405                                printf("(mbox) Adding cc: %s from line '%s'\n",
1406                                        $1, $_) unless $quiet;
1407                                push @cc, $1;
1408                        }
1409                        elsif (/^To:\s+(.*)$/i) {
1410                                foreach my $addr (parse_address_line($1)) {
1411                                        printf("(mbox) Adding to: %s from line '%s'\n",
1412                                                $addr, $_) unless $quiet;
1413                                        push @to, $addr;
1414                                }
1415                        }
1416                        elsif (/^Cc:\s+(.*)$/i) {
1417                                foreach my $addr (parse_address_line($1)) {
1418                                        my $qaddr = unquote_rfc2047($addr);
1419                                        my $saddr = sanitize_address($qaddr);
1420                                        if ($saddr eq $sender) {
1421                                                next if ($suppress_cc{'self'});
1422                                        } else {
1423                                                next if ($suppress_cc{'cc'});
1424                                        }
1425                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1426                                                $addr, $_) unless $quiet;
1427                                        push @cc, $addr;
1428                                }
1429                        }
1430                        elsif (/^Content-type:/i) {
1431                                $has_content_type = 1;
1432                                if (/charset="?([^ "]+)/) {
1433                                        $body_encoding = $1;
1434                                }
1435                                push @xh, $_;
1436                        }
1437                        elsif (/^MIME-Version/i) {
1438                                $has_mime_version = 1;
1439                                push @xh, $_;
1440                        }
1441                        elsif (/^Message-Id: (.*)/i) {
1442                                $message_id = $1;
1443                        }
1444                        elsif (/^Content-Transfer-Encoding: (.*)/i) {
1445                                $xfer_encoding = $1 if not defined $xfer_encoding;
1446                        }
1447                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1448                                push @xh, $_;
1449                        }
1450
1451                } else {
1452                        # In the traditional
1453                        # "send lots of email" format,
1454                        # line 1 = cc
1455                        # line 2 = subject
1456                        # So let's support that, too.
1457                        $input_format = 'lots';
1458                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1459                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1460                                        $_, $_) unless $quiet;
1461                                push @cc, $_;
1462                        } elsif (!defined $subject) {
1463                                $subject = $_;
1464                        }
1465                }
1466        }
1467        # Now parse the message body
1468        while(<$fh>) {
1469                $message .=  $_;
1470                if (/^(Signed-off-by|Cc): (.*)$/i) {
1471                        chomp;
1472                        my ($what, $c) = ($1, $2);
1473                        chomp $c;
1474                        my $sc = sanitize_address($c);
1475                        if ($sc eq $sender) {
1476                                next if ($suppress_cc{'self'});
1477                        } else {
1478                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1479                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1480                        }
1481                        push @cc, $c;
1482                        printf("(body) Adding cc: %s from line '%s'\n",
1483                                $c, $_) unless $quiet;
1484                }
1485        }
1486        close $fh;
1487
1488        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1489                if defined $to_cmd;
1490        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1491                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1492
1493        if ($broken_encoding{$t} && !$has_content_type) {
1494                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1495                $has_content_type = 1;
1496                push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding";
1497                $body_encoding = $auto_8bit_encoding;
1498        }
1499
1500        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1501                $subject = quote_subject($subject, $auto_8bit_encoding);
1502        }
1503
1504        if (defined $sauthor and $sauthor ne $sender) {
1505                $message = "From: $author\n\n$message";
1506                if (defined $author_encoding) {
1507                        if ($has_content_type) {
1508                                if ($body_encoding eq $author_encoding) {
1509                                        # ok, we already have the right encoding
1510                                }
1511                                else {
1512                                        # uh oh, we should re-encode
1513                                }
1514                        }
1515                        else {
1516                                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1517                                $has_content_type = 1;
1518                                push @xh,
1519                                  "Content-Type: text/plain; charset=$author_encoding";
1520                        }
1521                }
1522        }
1523        if (defined $target_xfer_encoding) {
1524                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1525                $message = apply_transfer_encoding(
1526                        $message, $xfer_encoding, $target_xfer_encoding);
1527                $xfer_encoding = $target_xfer_encoding;
1528        }
1529        if (defined $xfer_encoding) {
1530                push @xh, "Content-Transfer-Encoding: $xfer_encoding";
1531        }
1532        if (defined $xfer_encoding or $has_content_type) {
1533                unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version;
1534        }
1535
1536        $needs_confirm = (
1537                $confirm eq "always" or
1538                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1539                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1540        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1541
1542        @to = process_address_list(@to);
1543        @cc = process_address_list(@cc);
1544
1545        @to = (@initial_to, @to);
1546        @cc = (@initial_cc, @cc);
1547
1548        if ($message_num == 1) {
1549                if (defined $cover_cc and $cover_cc) {
1550                        @initial_cc = @cc;
1551                }
1552                if (defined $cover_to and $cover_to) {
1553                        @initial_to = @to;
1554                }
1555        }
1556
1557        my $message_was_sent = send_message();
1558
1559        # set up for the next message
1560        if ($thread && $message_was_sent &&
1561                ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
1562                $message_num == 1)) {
1563                $reply_to = $message_id;
1564                if (length $references > 0) {
1565                        $references .= "\n $message_id";
1566                } else {
1567                        $references = "$message_id";
1568                }
1569        }
1570        $message_id = undef;
1571}
1572
1573# Execute a command (e.g. $to_cmd) to get a list of email addresses
1574# and return a results array
1575sub recipients_cmd {
1576        my ($prefix, $what, $cmd, $file) = @_;
1577
1578        my @addresses = ();
1579        open my $fh, "-|", "$cmd \Q$file\E"
1580            or die "($prefix) Could not execute '$cmd'";
1581        while (my $address = <$fh>) {
1582                $address =~ s/^\s*//g;
1583                $address =~ s/\s*$//g;
1584                $address = sanitize_address($address);
1585                next if ($address eq $sender and $suppress_cc{'self'});
1586                push @addresses, $address;
1587                printf("($prefix) Adding %s: %s from: '%s'\n",
1588                       $what, $address, $cmd) unless $quiet;
1589                }
1590        close $fh
1591            or die "($prefix) failed to close pipe to '$cmd'";
1592        return @addresses;
1593}
1594
1595cleanup_compose_files();
1596
1597sub cleanup_compose_files {
1598        unlink($compose_filename, $compose_filename . ".final") if $compose;
1599}
1600
1601$smtp->quit if $smtp;
1602
1603sub apply_transfer_encoding {
1604        my $message = shift;
1605        my $from = shift;
1606        my $to = shift;
1607
1608        return $message if ($from eq $to and $from ne '7bit');
1609
1610        require MIME::QuotedPrint;
1611        require MIME::Base64;
1612
1613        $message = MIME::QuotedPrint::decode($message)
1614                if ($from eq 'quoted-printable');
1615        $message = MIME::Base64::decode($message)
1616                if ($from eq 'base64');
1617
1618        die "cannot send message as 7bit"
1619                if ($to eq '7bit' and $message =~ /[^[:ascii:]]/);
1620        return $message
1621                if ($to eq '7bit' or $to eq '8bit');
1622        return MIME::QuotedPrint::encode($message, "\n", 0)
1623                if ($to eq 'quoted-printable');
1624        return MIME::Base64::encode($message, "\n")
1625                if ($to eq 'base64');
1626        die "invalid transfer encoding";
1627}
1628
1629sub unique_email_list {
1630        my %seen;
1631        my @emails;
1632
1633        foreach my $entry (@_) {
1634                my $clean = extract_valid_address_or_die($entry);
1635                $seen{$clean} ||= 0;
1636                next if $seen{$clean}++;
1637                push @emails, $entry;
1638        }
1639        return @emails;
1640}
1641
1642sub validate_patch {
1643        my $fn = shift;
1644        open(my $fh, '<', $fn)
1645                or die "unable to open $fn: $!\n";
1646        while (my $line = <$fh>) {
1647                if (length($line) > 998) {
1648                        return "$.: patch contains a line longer than 998 characters";
1649                }
1650        }
1651        return;
1652}
1653
1654sub file_has_nonascii {
1655        my $fn = shift;
1656        open(my $fh, '<', $fn)
1657                or die "unable to open $fn: $!\n";
1658        while (my $line = <$fh>) {
1659                return 1 if $line =~ /[^[:ascii:]]/;
1660        }
1661        return 0;
1662}
1663
1664sub body_or_subject_has_nonascii {
1665        my $fn = shift;
1666        open(my $fh, '<', $fn)
1667                or die "unable to open $fn: $!\n";
1668        while (my $line = <$fh>) {
1669                last if $line =~ /^$/;
1670                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1671        }
1672        while (my $line = <$fh>) {
1673                return 1 if $line =~ /[^[:ascii:]]/;
1674        }
1675        return 0;
1676}