git-send-email.perlon commit Merge branch 'jw/make-arflags-customizable' into maint (4d2a301)
   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-auth             <str>  * Space-separated list of allowed AUTH mechanisms.
  79                                     This setting forces to use one of the listed mechanisms.
  80    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  81
  82  Automating:
  83    --identity              <str>  * Use the sendemail.<id> options.
  84    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  85    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  86    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  87    --[no-]cc-cover                * Email Cc: addresses in the cover letter.
  88    --[no-]to-cover                * Email To: addresses in the cover letter.
  89    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  90    --[no-]suppress-from           * Send to self. Default off.
  91    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
  92    --[no-]thread                  * Use In-Reply-To: field. Default on.
  93
  94  Administering:
  95    --confirm               <str>  * Confirm recipients before sending;
  96                                     auto, cc, compose, always, or never.
  97    --quiet                        * Output one line of info per email.
  98    --dry-run                      * Don't actually send the emails.
  99    --[no-]validate                * Perform patch sanity checks. Default on.
 100    --[no-]format-patch            * understand any non optional arguments as
 101                                     `git format-patch` ones.
 102    --force                        * Send even if safety checks would prevent it.
 103
 104EOT
 105        exit(1);
 106}
 107
 108# most mail servers generate the Date: header, but not all...
 109sub format_2822_time {
 110        my ($time) = @_;
 111        my @localtm = localtime($time);
 112        my @gmttm = gmtime($time);
 113        my $localmin = $localtm[1] + $localtm[2] * 60;
 114        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 115        if ($localtm[0] != $gmttm[0]) {
 116                die "local zone differs from GMT by a non-minute interval\n";
 117        }
 118        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 119                $localmin += 1440;
 120        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 121                $localmin -= 1440;
 122        } elsif ($gmttm[6] != $localtm[6]) {
 123                die "local time offset greater than or equal to 24 hours\n";
 124        }
 125        my $offset = $localmin - $gmtmin;
 126        my $offhour = $offset / 60;
 127        my $offmin = abs($offset % 60);
 128        if (abs($offhour) >= 24) {
 129                die ("local time offset greater than or equal to 24 hours\n");
 130        }
 131
 132        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 133                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 134                       $localtm[3],
 135                       qw(Jan Feb Mar Apr May Jun
 136                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 137                       $localtm[5]+1900,
 138                       $localtm[2],
 139                       $localtm[1],
 140                       $localtm[0],
 141                       ($offset >= 0) ? '+' : '-',
 142                       abs($offhour),
 143                       $offmin,
 144                       );
 145}
 146
 147my $have_email_valid = eval { require Email::Valid; 1 };
 148my $have_mail_address = eval { require Mail::Address; 1 };
 149my $smtp;
 150my $auth;
 151
 152# Regexes for RFC 2047 productions.
 153my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/;
 154my $re_encoded_text = qr/[^? \000-\037\177-\377]+/;
 155my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 156
 157# Variables we fill in automatically, or via prompting:
 158my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 159        $initial_reply_to,$initial_subject,@files,
 160        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 161
 162my $envelope_sender;
 163
 164# Example reply to:
 165#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 166
 167my $repo = eval { Git->repository() };
 168my @repo = $repo ? ($repo) : ();
 169my $term = eval {
 170        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 171                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 172                : new Term::ReadLine 'git-send-email';
 173};
 174if ($@) {
 175        $term = new FakeTerm "$@: going non-interactive";
 176}
 177
 178# Behavior modification variables
 179my ($quiet, $dry_run) = (0, 0);
 180my $format_patch;
 181my $compose_filename;
 182my $force = 0;
 183
 184# Handle interactive edition of files.
 185my $multiedit;
 186my $editor;
 187
 188sub do_edit {
 189        if (!defined($editor)) {
 190                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 191        }
 192        if (defined($multiedit) && !$multiedit) {
 193                map {
 194                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 195                        if (($? & 127) || ($? >> 8)) {
 196                                die("the editor exited uncleanly, aborting everything");
 197                        }
 198                } @_;
 199        } else {
 200                system('sh', '-c', $editor.' "$@"', $editor, @_);
 201                if (($? & 127) || ($? >> 8)) {
 202                        die("the editor exited uncleanly, aborting everything");
 203                }
 204        }
 205}
 206
 207# Variables with corresponding config settings
 208my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 209my ($cover_cc, $cover_to);
 210my ($to_cmd, $cc_cmd);
 211my ($smtp_server, $smtp_server_port, @smtp_server_options);
 212my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 213my ($identity, $aliasfiletype, @alias_files, $smtp_domain, $smtp_auth);
 214my ($validate, $confirm);
 215my (@suppress_cc);
 216my ($auto_8bit_encoding);
 217my ($compose_encoding);
 218my ($target_xfer_encoding);
 219
 220my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 221
 222my %config_bool_settings = (
 223    "thread" => [\$thread, 1],
 224    "chainreplyto" => [\$chain_reply_to, 0],
 225    "suppressfrom" => [\$suppress_from, undef],
 226    "signedoffbycc" => [\$signed_off_by_cc, undef],
 227    "cccover" => [\$cover_cc, undef],
 228    "tocover" => [\$cover_to, undef],
 229    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 230    "validate" => [\$validate, 1],
 231    "multiedit" => [\$multiedit, undef],
 232    "annotate" => [\$annotate, undef],
 233    "xmailer" => [\$use_xmailer, 1]
 234);
 235
 236my %config_settings = (
 237    "smtpserver" => \$smtp_server,
 238    "smtpserverport" => \$smtp_server_port,
 239    "smtpserveroption" => \@smtp_server_options,
 240    "smtpuser" => \$smtp_authuser,
 241    "smtppass" => \$smtp_authpass,
 242    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 243    "smtpdomain" => \$smtp_domain,
 244    "smtpauth" => \$smtp_auth,
 245    "to" => \@initial_to,
 246    "tocmd" => \$to_cmd,
 247    "cc" => \@initial_cc,
 248    "cccmd" => \$cc_cmd,
 249    "aliasfiletype" => \$aliasfiletype,
 250    "bcc" => \@bcclist,
 251    "suppresscc" => \@suppress_cc,
 252    "envelopesender" => \$envelope_sender,
 253    "confirm"   => \$confirm,
 254    "from" => \$sender,
 255    "assume8bitencoding" => \$auto_8bit_encoding,
 256    "composeencoding" => \$compose_encoding,
 257    "transferencoding" => \$target_xfer_encoding,
 258);
 259
 260my %config_path_settings = (
 261    "aliasesfile" => \@alias_files,
 262);
 263
 264# Handle Uncouth Termination
 265sub signal_handler {
 266
 267        # Make text normal
 268        print color("reset"), "\n";
 269
 270        # SMTP password masked
 271        system "stty echo";
 272
 273        # tmp files from --compose
 274        if (defined $compose_filename) {
 275                if (-e $compose_filename) {
 276                        print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
 277                }
 278                if (-e ($compose_filename . ".final")) {
 279                        print "'$compose_filename.final' contains the composed email.\n"
 280                }
 281        }
 282
 283        exit;
 284};
 285
 286$SIG{TERM} = \&signal_handler;
 287$SIG{INT}  = \&signal_handler;
 288
 289# Begin by accumulating all the variables (defined above), that we will end up
 290# needing, first, from the command line:
 291
 292my $help;
 293my $rc = GetOptions("h" => \$help,
 294                    "sender|from=s" => \$sender,
 295                    "in-reply-to=s" => \$initial_reply_to,
 296                    "subject=s" => \$initial_subject,
 297                    "to=s" => \@initial_to,
 298                    "to-cmd=s" => \$to_cmd,
 299                    "no-to" => \$no_to,
 300                    "cc=s" => \@initial_cc,
 301                    "no-cc" => \$no_cc,
 302                    "bcc=s" => \@bcclist,
 303                    "no-bcc" => \$no_bcc,
 304                    "chain-reply-to!" => \$chain_reply_to,
 305                    "no-chain-reply-to" => sub {$chain_reply_to = 0},
 306                    "smtp-server=s" => \$smtp_server,
 307                    "smtp-server-option=s" => \@smtp_server_options,
 308                    "smtp-server-port=s" => \$smtp_server_port,
 309                    "smtp-user=s" => \$smtp_authuser,
 310                    "smtp-pass:s" => \$smtp_authpass,
 311                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 312                    "smtp-encryption=s" => \$smtp_encryption,
 313                    "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path,
 314                    "smtp-debug:i" => \$debug_net_smtp,
 315                    "smtp-domain:s" => \$smtp_domain,
 316                    "smtp-auth=s" => \$smtp_auth,
 317                    "identity=s" => \$identity,
 318                    "annotate!" => \$annotate,
 319                    "no-annotate" => sub {$annotate = 0},
 320                    "compose" => \$compose,
 321                    "quiet" => \$quiet,
 322                    "cc-cmd=s" => \$cc_cmd,
 323                    "suppress-from!" => \$suppress_from,
 324                    "no-suppress-from" => sub {$suppress_from = 0},
 325                    "suppress-cc=s" => \@suppress_cc,
 326                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 327                    "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0},
 328                    "cc-cover|cc-cover!" => \$cover_cc,
 329                    "no-cc-cover" => sub {$cover_cc = 0},
 330                    "to-cover|to-cover!" => \$cover_to,
 331                    "no-to-cover" => sub {$cover_to = 0},
 332                    "confirm=s" => \$confirm,
 333                    "dry-run" => \$dry_run,
 334                    "envelope-sender=s" => \$envelope_sender,
 335                    "thread!" => \$thread,
 336                    "no-thread" => sub {$thread = 0},
 337                    "validate!" => \$validate,
 338                    "no-validate" => sub {$validate = 0},
 339                    "transfer-encoding=s" => \$target_xfer_encoding,
 340                    "format-patch!" => \$format_patch,
 341                    "no-format-patch" => sub {$format_patch = 0},
 342                    "8bit-encoding=s" => \$auto_8bit_encoding,
 343                    "compose-encoding=s" => \$compose_encoding,
 344                    "force" => \$force,
 345                    "xmailer!" => \$use_xmailer,
 346                    "no-xmailer" => sub {$use_xmailer = 0},
 347         );
 348
 349usage() if $help;
 350unless ($rc) {
 351    usage();
 352}
 353
 354die "Cannot run git format-patch from outside a repository\n"
 355        if $format_patch and not $repo;
 356
 357# Now, let's fill any that aren't set in with defaults:
 358
 359sub read_config {
 360        my ($prefix) = @_;
 361
 362        foreach my $setting (keys %config_bool_settings) {
 363                my $target = $config_bool_settings{$setting}->[0];
 364                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 365        }
 366
 367        foreach my $setting (keys %config_path_settings) {
 368                my $target = $config_path_settings{$setting};
 369                if (ref($target) eq "ARRAY") {
 370                        unless (@$target) {
 371                                my @values = Git::config_path(@repo, "$prefix.$setting");
 372                                @$target = @values if (@values && defined $values[0]);
 373                        }
 374                }
 375                else {
 376                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 377                }
 378        }
 379
 380        foreach my $setting (keys %config_settings) {
 381                my $target = $config_settings{$setting};
 382                next if $setting eq "to" and defined $no_to;
 383                next if $setting eq "cc" and defined $no_cc;
 384                next if $setting eq "bcc" and defined $no_bcc;
 385                if (ref($target) eq "ARRAY") {
 386                        unless (@$target) {
 387                                my @values = Git::config(@repo, "$prefix.$setting");
 388                                @$target = @values if (@values && defined $values[0]);
 389                        }
 390                }
 391                else {
 392                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 393                }
 394        }
 395
 396        if (!defined $smtp_encryption) {
 397                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 398                if (defined $enc) {
 399                        $smtp_encryption = $enc;
 400                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 401                        $smtp_encryption = 'ssl';
 402                }
 403        }
 404}
 405
 406# read configuration from [sendemail "$identity"], fall back on [sendemail]
 407$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 408read_config("sendemail.$identity") if (defined $identity);
 409read_config("sendemail");
 410
 411# fall back on builtin bool defaults
 412foreach my $setting (values %config_bool_settings) {
 413        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 414}
 415
 416# 'default' encryption is none -- this only prevents a warning
 417$smtp_encryption = '' unless (defined $smtp_encryption);
 418
 419# Set CC suppressions
 420my(%suppress_cc);
 421if (@suppress_cc) {
 422        foreach my $entry (@suppress_cc) {
 423                die "Unknown --suppress-cc field: '$entry'\n"
 424                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 425                $suppress_cc{$entry} = 1;
 426        }
 427}
 428
 429if ($suppress_cc{'all'}) {
 430        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 431                $suppress_cc{$entry} = 1;
 432        }
 433        delete $suppress_cc{'all'};
 434}
 435
 436# If explicit old-style ones are specified, they trump --suppress-cc.
 437$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 438$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 439
 440if ($suppress_cc{'body'}) {
 441        foreach my $entry (qw (sob bodycc)) {
 442                $suppress_cc{$entry} = 1;
 443        }
 444        delete $suppress_cc{'body'};
 445}
 446
 447# Set confirm's default value
 448my $confirm_unconfigured = !defined $confirm;
 449if ($confirm_unconfigured) {
 450        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 451};
 452die "Unknown --confirm setting: '$confirm'\n"
 453        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 454
 455# Debugging, print out the suppressions.
 456if (0) {
 457        print "suppressions:\n";
 458        foreach my $entry (keys %suppress_cc) {
 459                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 460        }
 461}
 462
 463my ($repoauthor, $repocommitter);
 464($repoauthor) = Git::ident_person(@repo, 'author');
 465($repocommitter) = Git::ident_person(@repo, 'committer');
 466
 467sub parse_address_line {
 468        if ($have_mail_address) {
 469                return map { $_->format } Mail::Address->parse($_[0]);
 470        } else {
 471                return Git::parse_mailboxes($_[0]);
 472        }
 473}
 474
 475sub split_addrs {
 476        return quotewords('\s*,\s*', 1, @_);
 477}
 478
 479my %aliases;
 480
 481sub parse_sendmail_alias {
 482        local $_ = shift;
 483        if (/"/) {
 484                print STDERR "warning: sendmail alias with quotes is not supported: $_\n";
 485        } elsif (/:include:/) {
 486                print STDERR "warning: `:include:` not supported: $_\n";
 487        } elsif (/[\/|]/) {
 488                print STDERR "warning: `/file` or `|pipe` redirection not supported: $_\n";
 489        } elsif (/^(\S+?)\s*:\s*(.+)$/) {
 490                my ($alias, $addr) = ($1, $2);
 491                $aliases{$alias} = [ split_addrs($addr) ];
 492        } else {
 493                print STDERR "warning: sendmail line is not recognized: $_\n";
 494        }
 495}
 496
 497sub parse_sendmail_aliases {
 498        my $fh = shift;
 499        my $s = '';
 500        while (<$fh>) {
 501                chomp;
 502                next if /^\s*$/ || /^\s*#/;
 503                $s .= $_, next if $s =~ s/\\$// || s/^\s+//;
 504                parse_sendmail_alias($s) if $s;
 505                $s = $_;
 506        }
 507        $s =~ s/\\$//; # silently tolerate stray '\' on last line
 508        parse_sendmail_alias($s) if $s;
 509}
 510
 511my %parse_alias = (
 512        # multiline formats can be supported in the future
 513        mutt => sub { my $fh = shift; while (<$fh>) {
 514                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 515                        my ($alias, $addr) = ($1, $2);
 516                        $addr =~ s/#.*$//; # mutt allows # comments
 517                         # commas delimit multiple addresses
 518                        $aliases{$alias} = [ split_addrs($addr) ];
 519                }}},
 520        mailrc => sub { my $fh = shift; while (<$fh>) {
 521                if (/^alias\s+(\S+)\s+(.*)$/) {
 522                        # spaces delimit multiple addresses
 523                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 524                }}},
 525        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 526                for (my $x = ''; defined($x); $x = $_) {
 527                        chomp $x;
 528                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 529                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 530                        $aliases{$1} = [ split_addrs($2) ];
 531                }},
 532        elm => sub  { my $fh = shift;
 533                      while (<$fh>) {
 534                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 535                              my ($alias, $addr) = ($1, $2);
 536                               $aliases{$alias} = [ split_addrs($addr) ];
 537                          }
 538                      } },
 539        sendmail => \&parse_sendmail_aliases,
 540        gnus => sub { my $fh = shift; while (<$fh>) {
 541                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 542                        $aliases{$1} = [ $2 ];
 543                }}}
 544);
 545
 546if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 547        foreach my $file (@alias_files) {
 548                open my $fh, '<', $file or die "opening $file: $!\n";
 549                $parse_alias{$aliasfiletype}->($fh);
 550                close $fh;
 551        }
 552}
 553
 554# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 555# $f is a revision list specification to be passed to format-patch.
 556sub is_format_patch_arg {
 557        return unless $repo;
 558        my $f = shift;
 559        try {
 560                $repo->command('rev-parse', '--verify', '--quiet', $f);
 561                if (defined($format_patch)) {
 562                        return $format_patch;
 563                }
 564                die(<<EOF);
 565File '$f' exists but it could also be the range of commits
 566to produce patches for.  Please disambiguate by...
 567
 568    * Saying "./$f" if you mean a file; or
 569    * Giving --format-patch option if you mean a range.
 570EOF
 571        } catch Git::Error::Command with {
 572                # Not a valid revision.  Treat it as a filename.
 573                return 0;
 574        }
 575}
 576
 577# Now that all the defaults are set, process the rest of the command line
 578# arguments and collect up the files that need to be processed.
 579my @rev_list_opts;
 580while (defined(my $f = shift @ARGV)) {
 581        if ($f eq "--") {
 582                push @rev_list_opts, "--", @ARGV;
 583                @ARGV = ();
 584        } elsif (-d $f and !is_format_patch_arg($f)) {
 585                opendir my $dh, $f
 586                        or die "Failed to opendir $f: $!";
 587
 588                push @files, grep { -f $_ } map { catfile($f, $_) }
 589                                sort readdir $dh;
 590                closedir $dh;
 591        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 592                push @files, $f;
 593        } else {
 594                push @rev_list_opts, $f;
 595        }
 596}
 597
 598if (@rev_list_opts) {
 599        die "Cannot run git format-patch from outside a repository\n"
 600                unless $repo;
 601        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 602}
 603
 604if ($validate) {
 605        foreach my $f (@files) {
 606                unless (-p $f) {
 607                        my $error = validate_patch($f);
 608                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 609                }
 610        }
 611}
 612
 613if (@files) {
 614        unless ($quiet) {
 615                print $_,"\n" for (@files);
 616        }
 617} else {
 618        print STDERR "\nNo patch files specified!\n\n";
 619        usage();
 620}
 621
 622sub get_patch_subject {
 623        my $fn = shift;
 624        open (my $fh, '<', $fn);
 625        while (my $line = <$fh>) {
 626                next unless ($line =~ /^Subject: (.*)$/);
 627                close $fh;
 628                return "GIT: $1\n";
 629        }
 630        close $fh;
 631        die "No subject line in $fn ?";
 632}
 633
 634if ($compose) {
 635        # Note that this does not need to be secure, but we will make a small
 636        # effort to have it be unique
 637        $compose_filename = ($repo ?
 638                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 639                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 640        open my $c, ">", $compose_filename
 641                or die "Failed to open for writing $compose_filename: $!";
 642
 643
 644        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 645        my $tpl_subject = $initial_subject || '';
 646        my $tpl_reply_to = $initial_reply_to || '';
 647
 648        print $c <<EOT;
 649From $tpl_sender # This line is ignored.
 650GIT: Lines beginning in "GIT:" will be removed.
 651GIT: Consider including an overall diffstat or table of contents
 652GIT: for the patch you are writing.
 653GIT:
 654GIT: Clear the body content if you don't wish to send a summary.
 655From: $tpl_sender
 656Subject: $tpl_subject
 657In-Reply-To: $tpl_reply_to
 658
 659EOT
 660        for my $f (@files) {
 661                print $c get_patch_subject($f);
 662        }
 663        close $c;
 664
 665        if ($annotate) {
 666                do_edit($compose_filename, @files);
 667        } else {
 668                do_edit($compose_filename);
 669        }
 670
 671        open my $c2, ">", $compose_filename . ".final"
 672                or die "Failed to open $compose_filename.final : " . $!;
 673
 674        open $c, "<", $compose_filename
 675                or die "Failed to open $compose_filename : " . $!;
 676
 677        my $need_8bit_cte = file_has_nonascii($compose_filename);
 678        my $in_body = 0;
 679        my $summary_empty = 1;
 680        if (!defined $compose_encoding) {
 681                $compose_encoding = "UTF-8";
 682        }
 683        while(<$c>) {
 684                next if m/^GIT:/;
 685                if ($in_body) {
 686                        $summary_empty = 0 unless (/^\n$/);
 687                } elsif (/^\n$/) {
 688                        $in_body = 1;
 689                        if ($need_8bit_cte) {
 690                                print $c2 "MIME-Version: 1.0\n",
 691                                         "Content-Type: text/plain; ",
 692                                           "charset=$compose_encoding\n",
 693                                         "Content-Transfer-Encoding: 8bit\n";
 694                        }
 695                } elsif (/^MIME-Version:/i) {
 696                        $need_8bit_cte = 0;
 697                } elsif (/^Subject:\s*(.+)\s*$/i) {
 698                        $initial_subject = $1;
 699                        my $subject = $initial_subject;
 700                        $_ = "Subject: " .
 701                                quote_subject($subject, $compose_encoding) .
 702                                "\n";
 703                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 704                        $initial_reply_to = $1;
 705                        next;
 706                } elsif (/^From:\s*(.+)\s*$/i) {
 707                        $sender = $1;
 708                        next;
 709                } elsif (/^(?:To|Cc|Bcc):/i) {
 710                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 711                        next;
 712                }
 713                print $c2 $_;
 714        }
 715        close $c;
 716        close $c2;
 717
 718        if ($summary_empty) {
 719                print "Summary email is empty, skipping it\n";
 720                $compose = -1;
 721        }
 722} elsif ($annotate) {
 723        do_edit(@files);
 724}
 725
 726sub ask {
 727        my ($prompt, %arg) = @_;
 728        my $valid_re = $arg{valid_re};
 729        my $default = $arg{default};
 730        my $confirm_only = $arg{confirm_only};
 731        my $resp;
 732        my $i = 0;
 733        return defined $default ? $default : undef
 734                unless defined $term->IN and defined fileno($term->IN) and
 735                       defined $term->OUT and defined fileno($term->OUT);
 736        while ($i++ < 10) {
 737                $resp = $term->readline($prompt);
 738                if (!defined $resp) { # EOF
 739                        print "\n";
 740                        return defined $default ? $default : undef;
 741                }
 742                if ($resp eq '' and defined $default) {
 743                        return $default;
 744                }
 745                if (!defined $valid_re or $resp =~ /$valid_re/) {
 746                        return $resp;
 747                }
 748                if ($confirm_only) {
 749                        my $yesno = $term->readline("Are you sure you want to use <$resp> [y/N]? ");
 750                        if (defined $yesno && $yesno =~ /y/i) {
 751                                return $resp;
 752                        }
 753                }
 754        }
 755        return;
 756}
 757
 758my %broken_encoding;
 759
 760sub file_declares_8bit_cte {
 761        my $fn = shift;
 762        open (my $fh, '<', $fn);
 763        while (my $line = <$fh>) {
 764                last if ($line =~ /^$/);
 765                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 766        }
 767        close $fh;
 768        return 0;
 769}
 770
 771foreach my $f (@files) {
 772        next unless (body_or_subject_has_nonascii($f)
 773                     && !file_declares_8bit_cte($f));
 774        $broken_encoding{$f} = 1;
 775}
 776
 777if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 778        print "The following files are 8bit, but do not declare " .
 779                "a Content-Transfer-Encoding.\n";
 780        foreach my $f (sort keys %broken_encoding) {
 781                print "    $f\n";
 782        }
 783        $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
 784                                  valid_re => qr/.{4}/, confirm_only => 1,
 785                                  default => "UTF-8");
 786}
 787
 788if (!$force) {
 789        for my $f (@files) {
 790                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 791                        die "Refusing to send because the patch\n\t$f\n"
 792                                . "has the template subject '*** SUBJECT HERE ***'. "
 793                                . "Pass --force if you really want to send.\n";
 794                }
 795        }
 796}
 797
 798if (defined $sender) {
 799        $sender =~ s/^\s+|\s+$//g;
 800        ($sender) = expand_aliases($sender);
 801} else {
 802        $sender = $repoauthor || $repocommitter || '';
 803}
 804
 805# $sender could be an already sanitized address
 806# (e.g. sendemail.from could be manually sanitized by user).
 807# But it's a no-op to run sanitize_address on an already sanitized address.
 808$sender = sanitize_address($sender);
 809
 810my $prompting = 0;
 811if (!@initial_to && !defined $to_cmd) {
 812        my $to = ask("Who should the emails be sent to (if any)? ",
 813                     default => "",
 814                     valid_re => qr/\@.*\./, confirm_only => 1);
 815        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 816        $prompting++;
 817}
 818
 819sub expand_aliases {
 820        return map { expand_one_alias($_) } @_;
 821}
 822
 823my %EXPANDED_ALIASES;
 824sub expand_one_alias {
 825        my $alias = shift;
 826        if ($EXPANDED_ALIASES{$alias}) {
 827                die "fatal: alias '$alias' expands to itself\n";
 828        }
 829        local $EXPANDED_ALIASES{$alias} = 1;
 830        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 831}
 832
 833@initial_to = process_address_list(@initial_to);
 834@initial_cc = process_address_list(@initial_cc);
 835@bcclist = process_address_list(@bcclist);
 836
 837if ($thread && !defined $initial_reply_to && $prompting) {
 838        $initial_reply_to = ask(
 839                "Message-ID to be used as In-Reply-To for the first email (if any)? ",
 840                default => "",
 841                valid_re => qr/\@.*\./, confirm_only => 1);
 842}
 843if (defined $initial_reply_to) {
 844        $initial_reply_to =~ s/^\s*<?//;
 845        $initial_reply_to =~ s/>?\s*$//;
 846        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 847}
 848
 849if (!defined $smtp_server) {
 850        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 851                if (-x $_) {
 852                        $smtp_server = $_;
 853                        last;
 854                }
 855        }
 856        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 857}
 858
 859if ($compose && $compose > 0) {
 860        @files = ($compose_filename . ".final", @files);
 861}
 862
 863# Variables we set as part of the loop over files
 864our ($message_id, %mail, $subject, $reply_to, $references, $message,
 865        $needs_confirm, $message_num, $ask_default);
 866
 867sub extract_valid_address {
 868        my $address = shift;
 869        my $local_part_regexp = qr/[^<>"\s@]+/;
 870        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 871
 872        # check for a local address:
 873        return $address if ($address =~ /^($local_part_regexp)$/);
 874
 875        $address =~ s/^\s*<(.*)>\s*$/$1/;
 876        if ($have_email_valid) {
 877                return scalar Email::Valid->address($address);
 878        }
 879
 880        # less robust/correct than the monster regexp in Email::Valid,
 881        # but still does a 99% job, and one less dependency
 882        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 883        return;
 884}
 885
 886sub extract_valid_address_or_die {
 887        my $address = shift;
 888        $address = extract_valid_address($address);
 889        die "error: unable to extract a valid address from: $address\n"
 890                if !$address;
 891        return $address;
 892}
 893
 894sub validate_address {
 895        my $address = shift;
 896        while (!extract_valid_address($address)) {
 897                print STDERR "error: unable to extract a valid address from: $address\n";
 898                $_ = ask("What to do with this address? ([q]uit|[d]rop|[e]dit): ",
 899                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 900                        default => 'q');
 901                if (/^d/i) {
 902                        return undef;
 903                } elsif (/^q/i) {
 904                        cleanup_compose_files();
 905                        exit(0);
 906                }
 907                $address = ask("Who should the email be sent to (if any)? ",
 908                        default => "",
 909                        valid_re => qr/\@.*\./, confirm_only => 1);
 910        }
 911        return $address;
 912}
 913
 914sub validate_address_list {
 915        return (grep { defined $_ }
 916                map { validate_address($_) } @_);
 917}
 918
 919# Usually don't need to change anything below here.
 920
 921# we make a "fake" message id by taking the current number
 922# of seconds since the beginning of Unix time and tacking on
 923# a random number to the end, in case we are called quicker than
 924# 1 second since the last time we were called.
 925
 926# We'll setup a template for the message id, using the "from" address:
 927
 928my ($message_id_stamp, $message_id_serial);
 929sub make_message_id {
 930        my $uniq;
 931        if (!defined $message_id_stamp) {
 932                $message_id_stamp = sprintf("%s-%s", time, $$);
 933                $message_id_serial = 0;
 934        }
 935        $message_id_serial++;
 936        $uniq = "$message_id_stamp-$message_id_serial";
 937
 938        my $du_part;
 939        for ($sender, $repocommitter, $repoauthor) {
 940                $du_part = extract_valid_address(sanitize_address($_));
 941                last if (defined $du_part and $du_part ne '');
 942        }
 943        if (not defined $du_part or $du_part eq '') {
 944                require Sys::Hostname;
 945                $du_part = 'user@' . Sys::Hostname::hostname();
 946        }
 947        my $message_id_template = "<%s-git-send-email-%s>";
 948        $message_id = sprintf($message_id_template, $uniq, $du_part);
 949        #print "new message id = $message_id\n"; # Was useful for debugging
 950}
 951
 952
 953
 954$time = time - scalar $#files;
 955
 956sub unquote_rfc2047 {
 957        local ($_) = @_;
 958        my $charset;
 959        my $sep = qr/[ \t]+/;
 960        s{$re_encoded_word(?:$sep$re_encoded_word)*}{
 961                my @words = split $sep, $&;
 962                foreach (@words) {
 963                        m/$re_encoded_word/;
 964                        $charset = $1;
 965                        my $encoding = $2;
 966                        my $text = $3;
 967                        if ($encoding eq 'q' || $encoding eq 'Q') {
 968                                $_ = $text;
 969                                s/_/ /g;
 970                                s/=([0-9A-F]{2})/chr(hex($1))/egi;
 971                        } else {
 972                                # other encodings not supported yet
 973                        }
 974                }
 975                join '', @words;
 976        }eg;
 977        return wantarray ? ($_, $charset) : $_;
 978}
 979
 980sub quote_rfc2047 {
 981        local $_ = shift;
 982        my $encoding = shift || 'UTF-8';
 983        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 984        s/(.*)/=\?$encoding\?q\?$1\?=/;
 985        return $_;
 986}
 987
 988sub is_rfc2047_quoted {
 989        my $s = shift;
 990        length($s) <= 75 &&
 991        $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o;
 992}
 993
 994sub subject_needs_rfc2047_quoting {
 995        my $s = shift;
 996
 997        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
 998}
 999
1000sub quote_subject {
1001        local $subject = shift;
1002        my $encoding = shift || 'UTF-8';
1003
1004        if (subject_needs_rfc2047_quoting($subject)) {
1005                return quote_rfc2047($subject, $encoding);
1006        }
1007        return $subject;
1008}
1009
1010# use the simplest quoting being able to handle the recipient
1011sub sanitize_address {
1012        my ($recipient) = @_;
1013
1014        # remove garbage after email address
1015        $recipient =~ s/(.*>).*$/$1/;
1016
1017        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
1018
1019        if (not $recipient_name) {
1020                return $recipient;
1021        }
1022
1023        # if recipient_name is already quoted, do nothing
1024        if (is_rfc2047_quoted($recipient_name)) {
1025                return $recipient;
1026        }
1027
1028        # remove non-escaped quotes
1029        $recipient_name =~ s/(^|[^\\])"/$1/g;
1030
1031        # rfc2047 is needed if a non-ascii char is included
1032        if ($recipient_name =~ /[^[:ascii:]]/) {
1033                $recipient_name = quote_rfc2047($recipient_name);
1034        }
1035
1036        # double quotes are needed if specials or CTLs are included
1037        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
1038                $recipient_name =~ s/([\\\r])/\\$1/g;
1039                $recipient_name = qq["$recipient_name"];
1040        }
1041
1042        return "$recipient_name $recipient_addr";
1043
1044}
1045
1046sub sanitize_address_list {
1047        return (map { sanitize_address($_) } @_);
1048}
1049
1050sub process_address_list {
1051        my @addr_list = map { parse_address_line($_) } @_;
1052        @addr_list = expand_aliases(@addr_list);
1053        @addr_list = sanitize_address_list(@addr_list);
1054        @addr_list = validate_address_list(@addr_list);
1055        return @addr_list;
1056}
1057
1058# Returns the local Fully Qualified Domain Name (FQDN) if available.
1059#
1060# Tightly configured MTAa require that a caller sends a real DNS
1061# domain name that corresponds the IP address in the HELO/EHLO
1062# handshake. This is used to verify the connection and prevent
1063# spammers from trying to hide their identity. If the DNS and IP don't
1064# match, the receiveing MTA may deny the connection.
1065#
1066# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1067#
1068# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1069# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1070#
1071# This maildomain*() code is based on ideas in Perl library Test::Reporter
1072# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1073
1074sub valid_fqdn {
1075        my $domain = shift;
1076        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1077}
1078
1079sub maildomain_net {
1080        my $maildomain;
1081
1082        if (eval { require Net::Domain; 1 }) {
1083                my $domain = Net::Domain::domainname();
1084                $maildomain = $domain if valid_fqdn($domain);
1085        }
1086
1087        return $maildomain;
1088}
1089
1090sub maildomain_mta {
1091        my $maildomain;
1092
1093        if (eval { require Net::SMTP; 1 }) {
1094                for my $host (qw(mailhost localhost)) {
1095                        my $smtp = Net::SMTP->new($host);
1096                        if (defined $smtp) {
1097                                my $domain = $smtp->domain;
1098                                $smtp->quit;
1099
1100                                $maildomain = $domain if valid_fqdn($domain);
1101
1102                                last if $maildomain;
1103                        }
1104                }
1105        }
1106
1107        return $maildomain;
1108}
1109
1110sub maildomain {
1111        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1112}
1113
1114sub smtp_host_string {
1115        if (defined $smtp_server_port) {
1116                return "$smtp_server:$smtp_server_port";
1117        } else {
1118                return $smtp_server;
1119        }
1120}
1121
1122# Returns 1 if authentication succeeded or was not necessary
1123# (smtp_user was not specified), and 0 otherwise.
1124
1125sub smtp_auth_maybe {
1126        if (!defined $smtp_authuser || $auth) {
1127                return 1;
1128        }
1129
1130        # Workaround AUTH PLAIN/LOGIN interaction defect
1131        # with Authen::SASL::Cyrus
1132        eval {
1133                require Authen::SASL;
1134                Authen::SASL->import(qw(Perl));
1135        };
1136
1137        # Check mechanism naming as defined in:
1138        # https://tools.ietf.org/html/rfc4422#page-8
1139        if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
1140                die "invalid smtp auth: '${smtp_auth}'";
1141        }
1142
1143        # TODO: Authentication may fail not because credentials were
1144        # invalid but due to other reasons, in which we should not
1145        # reject credentials.
1146        $auth = Git::credential({
1147                'protocol' => 'smtp',
1148                'host' => smtp_host_string(),
1149                'username' => $smtp_authuser,
1150                # if there's no password, "git credential fill" will
1151                # give us one, otherwise it'll just pass this one.
1152                'password' => $smtp_authpass
1153        }, sub {
1154                my $cred = shift;
1155
1156                if ($smtp_auth) {
1157                        my $sasl = Authen::SASL->new(
1158                                mechanism => $smtp_auth,
1159                                callback => {
1160                                        user => $cred->{'username'},
1161                                        pass => $cred->{'password'},
1162                                        authname => $cred->{'username'},
1163                                }
1164                        );
1165
1166                        return !!$smtp->auth($sasl);
1167                }
1168
1169                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1170        });
1171
1172        return $auth;
1173}
1174
1175sub ssl_verify_params {
1176        eval {
1177                require IO::Socket::SSL;
1178                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1179        };
1180        if ($@) {
1181                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1182                return;
1183        }
1184
1185        if (!defined $smtp_ssl_cert_path) {
1186                # use the OpenSSL defaults
1187                return (SSL_verify_mode => SSL_VERIFY_PEER());
1188        }
1189
1190        if ($smtp_ssl_cert_path eq "") {
1191                return (SSL_verify_mode => SSL_VERIFY_NONE());
1192        } elsif (-d $smtp_ssl_cert_path) {
1193                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1194                        SSL_ca_path => $smtp_ssl_cert_path);
1195        } elsif (-f $smtp_ssl_cert_path) {
1196                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1197                        SSL_ca_file => $smtp_ssl_cert_path);
1198        } else {
1199                print STDERR "Not using SSL_VERIFY_PEER because the CA path does not exist.\n";
1200                return (SSL_verify_mode => SSL_VERIFY_NONE());
1201        }
1202}
1203
1204sub file_name_is_absolute {
1205        my ($path) = @_;
1206
1207        # msys does not grok DOS drive-prefixes
1208        if ($^O eq 'msys') {
1209                return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#)
1210        }
1211
1212        require File::Spec::Functions;
1213        return File::Spec::Functions::file_name_is_absolute($path);
1214}
1215
1216# Returns 1 if the message was sent, and 0 otherwise.
1217# In actuality, the whole program dies when there
1218# is an error sending a message.
1219
1220sub send_message {
1221        my @recipients = unique_email_list(@to);
1222        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1223                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1224                    }
1225               @cc);
1226        my $to = join (",\n\t", @recipients);
1227        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1228        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1229        my $date = format_2822_time($time++);
1230        my $gitversion = '@@GIT_VERSION@@';
1231        if ($gitversion =~ m/..GIT_VERSION../) {
1232            $gitversion = Git::version();
1233        }
1234
1235        my $cc = join(",\n\t", unique_email_list(@cc));
1236        my $ccline = "";
1237        if ($cc ne '') {
1238                $ccline = "\nCc: $cc";
1239        }
1240        make_message_id() unless defined($message_id);
1241
1242        my $header = "From: $sender
1243To: $to${ccline}
1244Subject: $subject
1245Date: $date
1246Message-Id: $message_id
1247";
1248        if ($use_xmailer) {
1249                $header .= "X-Mailer: git-send-email $gitversion\n";
1250        }
1251        if ($reply_to) {
1252
1253                $header .= "In-Reply-To: $reply_to\n";
1254                $header .= "References: $references\n";
1255        }
1256        if (@xh) {
1257                $header .= join("\n", @xh) . "\n";
1258        }
1259
1260        my @sendmail_parameters = ('-i', @recipients);
1261        my $raw_from = $sender;
1262        if (defined $envelope_sender && $envelope_sender ne "auto") {
1263                $raw_from = $envelope_sender;
1264        }
1265        $raw_from = extract_valid_address($raw_from);
1266        unshift (@sendmail_parameters,
1267                        '-f', $raw_from) if(defined $envelope_sender);
1268
1269        if ($needs_confirm && !$dry_run) {
1270                print "\n$header\n";
1271                if ($needs_confirm eq "inform") {
1272                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1273                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1274                        print "    The Cc list above has been expanded by additional\n";
1275                        print "    addresses found in the patch commit message. By default\n";
1276                        print "    send-email prompts before sending whenever this occurs.\n";
1277                        print "    This behavior is controlled by the sendemail.confirm\n";
1278                        print "    configuration setting.\n";
1279                        print "\n";
1280                        print "    For additional information, run 'git send-email --help'.\n";
1281                        print "    To retain the current behavior, but squelch this message,\n";
1282                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
1283                }
1284                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
1285                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1286                         default => $ask_default);
1287                die "Send this email reply required" unless defined $_;
1288                if (/^n/i) {
1289                        return 0;
1290                } elsif (/^q/i) {
1291                        cleanup_compose_files();
1292                        exit(0);
1293                } elsif (/^a/i) {
1294                        $confirm = 'never';
1295                }
1296        }
1297
1298        unshift (@sendmail_parameters, @smtp_server_options);
1299
1300        if ($dry_run) {
1301                # We don't want to send the email.
1302        } elsif (file_name_is_absolute($smtp_server)) {
1303                my $pid = open my $sm, '|-';
1304                defined $pid or die $!;
1305                if (!$pid) {
1306                        exec($smtp_server, @sendmail_parameters) or die $!;
1307                }
1308                print $sm "$header\n$message";
1309                close $sm or die $!;
1310        } else {
1311
1312                if (!defined $smtp_server) {
1313                        die "The required SMTP server is not properly defined."
1314                }
1315
1316                if ($smtp_encryption eq 'ssl') {
1317                        $smtp_server_port ||= 465; # ssmtp
1318                        require Net::SMTP::SSL;
1319                        $smtp_domain ||= maildomain();
1320                        require IO::Socket::SSL;
1321                        # Net::SMTP::SSL->new() does not forward any SSL options
1322                        IO::Socket::SSL::set_client_defaults(
1323                                ssl_verify_params());
1324                        $smtp ||= Net::SMTP::SSL->new($smtp_server,
1325                                                      Hello => $smtp_domain,
1326                                                      Port => $smtp_server_port,
1327                                                      Debug => $debug_net_smtp);
1328                }
1329                else {
1330                        require Net::SMTP;
1331                        $smtp_domain ||= maildomain();
1332                        $smtp_server_port ||= 25;
1333                        $smtp ||= Net::SMTP->new($smtp_server,
1334                                                 Hello => $smtp_domain,
1335                                                 Debug => $debug_net_smtp,
1336                                                 Port => $smtp_server_port);
1337                        if ($smtp_encryption eq 'tls' && $smtp) {
1338                                require Net::SMTP::SSL;
1339                                $smtp->command('STARTTLS');
1340                                $smtp->response();
1341                                if ($smtp->code == 220) {
1342                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1343                                                                          ssl_verify_params())
1344                                                or die "STARTTLS failed! ".IO::Socket::SSL::errstr();
1345                                        $smtp_encryption = '';
1346                                        # Send EHLO again to receive fresh
1347                                        # supported commands
1348                                        $smtp->hello($smtp_domain);
1349                                } else {
1350                                        die "Server does not support STARTTLS! ".$smtp->message;
1351                                }
1352                        }
1353                }
1354
1355                if (!$smtp) {
1356                        die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ",
1357                            "VALUES: server=$smtp_server ",
1358                            "encryption=$smtp_encryption ",
1359                            "hello=$smtp_domain",
1360                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1361                }
1362
1363                smtp_auth_maybe or die $smtp->message;
1364
1365                $smtp->mail( $raw_from ) or die $smtp->message;
1366                $smtp->to( @recipients ) or die $smtp->message;
1367                $smtp->data or die $smtp->message;
1368                $smtp->datasend("$header\n$message") or die $smtp->message;
1369                $smtp->dataend() or die $smtp->message;
1370                $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message;
1371        }
1372        if ($quiet) {
1373                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
1374        } else {
1375                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
1376                if (!file_name_is_absolute($smtp_server)) {
1377                        print "Server: $smtp_server\n";
1378                        print "MAIL FROM:<$raw_from>\n";
1379                        foreach my $entry (@recipients) {
1380                            print "RCPT TO:<$entry>\n";
1381                        }
1382                } else {
1383                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1384                }
1385                print $header, "\n";
1386                if ($smtp) {
1387                        print "Result: ", $smtp->code, ' ',
1388                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1389                } else {
1390                        print "Result: OK\n";
1391                }
1392        }
1393
1394        return 1;
1395}
1396
1397$reply_to = $initial_reply_to;
1398$references = $initial_reply_to || '';
1399$subject = $initial_subject;
1400$message_num = 0;
1401
1402foreach my $t (@files) {
1403        open my $fh, "<", $t or die "can't open file $t";
1404
1405        my $author = undef;
1406        my $sauthor = undef;
1407        my $author_encoding;
1408        my $has_content_type;
1409        my $body_encoding;
1410        my $xfer_encoding;
1411        my $has_mime_version;
1412        @to = ();
1413        @cc = ();
1414        @xh = ();
1415        my $input_format = undef;
1416        my @header = ();
1417        $message = "";
1418        $message_num++;
1419        # First unfold multiline header fields
1420        while(<$fh>) {
1421                last if /^\s*$/;
1422                if (/^\s+\S/ and @header) {
1423                        chomp($header[$#header]);
1424                        s/^\s+/ /;
1425                        $header[$#header] .= $_;
1426            } else {
1427                        push(@header, $_);
1428                }
1429        }
1430        # Now parse the header
1431        foreach(@header) {
1432                if (/^From /) {
1433                        $input_format = 'mbox';
1434                        next;
1435                }
1436                chomp;
1437                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1438                        $input_format = 'mbox';
1439                }
1440
1441                if (defined $input_format && $input_format eq 'mbox') {
1442                        if (/^Subject:\s+(.*)$/i) {
1443                                $subject = $1;
1444                        }
1445                        elsif (/^From:\s+(.*)$/i) {
1446                                ($author, $author_encoding) = unquote_rfc2047($1);
1447                                $sauthor = sanitize_address($author);
1448                                next if $suppress_cc{'author'};
1449                                next if $suppress_cc{'self'} and $sauthor eq $sender;
1450                                printf("(mbox) Adding cc: %s from line '%s'\n",
1451                                        $1, $_) unless $quiet;
1452                                push @cc, $1;
1453                        }
1454                        elsif (/^To:\s+(.*)$/i) {
1455                                foreach my $addr (parse_address_line($1)) {
1456                                        printf("(mbox) Adding to: %s from line '%s'\n",
1457                                                $addr, $_) unless $quiet;
1458                                        push @to, $addr;
1459                                }
1460                        }
1461                        elsif (/^Cc:\s+(.*)$/i) {
1462                                foreach my $addr (parse_address_line($1)) {
1463                                        my $qaddr = unquote_rfc2047($addr);
1464                                        my $saddr = sanitize_address($qaddr);
1465                                        if ($saddr eq $sender) {
1466                                                next if ($suppress_cc{'self'});
1467                                        } else {
1468                                                next if ($suppress_cc{'cc'});
1469                                        }
1470                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1471                                                $addr, $_) unless $quiet;
1472                                        push @cc, $addr;
1473                                }
1474                        }
1475                        elsif (/^Content-type:/i) {
1476                                $has_content_type = 1;
1477                                if (/charset="?([^ "]+)/) {
1478                                        $body_encoding = $1;
1479                                }
1480                                push @xh, $_;
1481                        }
1482                        elsif (/^MIME-Version/i) {
1483                                $has_mime_version = 1;
1484                                push @xh, $_;
1485                        }
1486                        elsif (/^Message-Id: (.*)/i) {
1487                                $message_id = $1;
1488                        }
1489                        elsif (/^Content-Transfer-Encoding: (.*)/i) {
1490                                $xfer_encoding = $1 if not defined $xfer_encoding;
1491                        }
1492                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1493                                push @xh, $_;
1494                        }
1495
1496                } else {
1497                        # In the traditional
1498                        # "send lots of email" format,
1499                        # line 1 = cc
1500                        # line 2 = subject
1501                        # So let's support that, too.
1502                        $input_format = 'lots';
1503                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1504                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1505                                        $_, $_) unless $quiet;
1506                                push @cc, $_;
1507                        } elsif (!defined $subject) {
1508                                $subject = $_;
1509                        }
1510                }
1511        }
1512        # Now parse the message body
1513        while(<$fh>) {
1514                $message .=  $_;
1515                if (/^(Signed-off-by|Cc): (.*)$/i) {
1516                        chomp;
1517                        my ($what, $c) = ($1, $2);
1518                        chomp $c;
1519                        my $sc = sanitize_address($c);
1520                        if ($sc eq $sender) {
1521                                next if ($suppress_cc{'self'});
1522                        } else {
1523                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1524                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1525                        }
1526                        push @cc, $c;
1527                        printf("(body) Adding cc: %s from line '%s'\n",
1528                                $c, $_) unless $quiet;
1529                }
1530        }
1531        close $fh;
1532
1533        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1534                if defined $to_cmd;
1535        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1536                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1537
1538        if ($broken_encoding{$t} && !$has_content_type) {
1539                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1540                $has_content_type = 1;
1541                push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding";
1542                $body_encoding = $auto_8bit_encoding;
1543        }
1544
1545        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1546                $subject = quote_subject($subject, $auto_8bit_encoding);
1547        }
1548
1549        if (defined $sauthor and $sauthor ne $sender) {
1550                $message = "From: $author\n\n$message";
1551                if (defined $author_encoding) {
1552                        if ($has_content_type) {
1553                                if ($body_encoding eq $author_encoding) {
1554                                        # ok, we already have the right encoding
1555                                }
1556                                else {
1557                                        # uh oh, we should re-encode
1558                                }
1559                        }
1560                        else {
1561                                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1562                                $has_content_type = 1;
1563                                push @xh,
1564                                  "Content-Type: text/plain; charset=$author_encoding";
1565                        }
1566                }
1567        }
1568        if (defined $target_xfer_encoding) {
1569                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1570                $message = apply_transfer_encoding(
1571                        $message, $xfer_encoding, $target_xfer_encoding);
1572                $xfer_encoding = $target_xfer_encoding;
1573        }
1574        if (defined $xfer_encoding) {
1575                push @xh, "Content-Transfer-Encoding: $xfer_encoding";
1576        }
1577        if (defined $xfer_encoding or $has_content_type) {
1578                unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version;
1579        }
1580
1581        $needs_confirm = (
1582                $confirm eq "always" or
1583                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1584                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1585        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1586
1587        @to = process_address_list(@to);
1588        @cc = process_address_list(@cc);
1589
1590        @to = (@initial_to, @to);
1591        @cc = (@initial_cc, @cc);
1592
1593        if ($message_num == 1) {
1594                if (defined $cover_cc and $cover_cc) {
1595                        @initial_cc = @cc;
1596                }
1597                if (defined $cover_to and $cover_to) {
1598                        @initial_to = @to;
1599                }
1600        }
1601
1602        my $message_was_sent = send_message();
1603
1604        # set up for the next message
1605        if ($thread && $message_was_sent &&
1606                ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
1607                $message_num == 1)) {
1608                $reply_to = $message_id;
1609                if (length $references > 0) {
1610                        $references .= "\n $message_id";
1611                } else {
1612                        $references = "$message_id";
1613                }
1614        }
1615        $message_id = undef;
1616}
1617
1618# Execute a command (e.g. $to_cmd) to get a list of email addresses
1619# and return a results array
1620sub recipients_cmd {
1621        my ($prefix, $what, $cmd, $file) = @_;
1622
1623        my @addresses = ();
1624        open my $fh, "-|", "$cmd \Q$file\E"
1625            or die "($prefix) Could not execute '$cmd'";
1626        while (my $address = <$fh>) {
1627                $address =~ s/^\s*//g;
1628                $address =~ s/\s*$//g;
1629                $address = sanitize_address($address);
1630                next if ($address eq $sender and $suppress_cc{'self'});
1631                push @addresses, $address;
1632                printf("($prefix) Adding %s: %s from: '%s'\n",
1633                       $what, $address, $cmd) unless $quiet;
1634                }
1635        close $fh
1636            or die "($prefix) failed to close pipe to '$cmd'";
1637        return @addresses;
1638}
1639
1640cleanup_compose_files();
1641
1642sub cleanup_compose_files {
1643        unlink($compose_filename, $compose_filename . ".final") if $compose;
1644}
1645
1646$smtp->quit if $smtp;
1647
1648sub apply_transfer_encoding {
1649        my $message = shift;
1650        my $from = shift;
1651        my $to = shift;
1652
1653        return $message if ($from eq $to and $from ne '7bit');
1654
1655        require MIME::QuotedPrint;
1656        require MIME::Base64;
1657
1658        $message = MIME::QuotedPrint::decode($message)
1659                if ($from eq 'quoted-printable');
1660        $message = MIME::Base64::decode($message)
1661                if ($from eq 'base64');
1662
1663        die "cannot send message as 7bit"
1664                if ($to eq '7bit' and $message =~ /[^[:ascii:]]/);
1665        return $message
1666                if ($to eq '7bit' or $to eq '8bit');
1667        return MIME::QuotedPrint::encode($message, "\n", 0)
1668                if ($to eq 'quoted-printable');
1669        return MIME::Base64::encode($message, "\n")
1670                if ($to eq 'base64');
1671        die "invalid transfer encoding";
1672}
1673
1674sub unique_email_list {
1675        my %seen;
1676        my @emails;
1677
1678        foreach my $entry (@_) {
1679                my $clean = extract_valid_address_or_die($entry);
1680                $seen{$clean} ||= 0;
1681                next if $seen{$clean}++;
1682                push @emails, $entry;
1683        }
1684        return @emails;
1685}
1686
1687sub validate_patch {
1688        my $fn = shift;
1689        open(my $fh, '<', $fn)
1690                or die "unable to open $fn: $!\n";
1691        while (my $line = <$fh>) {
1692                if (length($line) > 998) {
1693                        return "$.: patch contains a line longer than 998 characters";
1694                }
1695        }
1696        return;
1697}
1698
1699sub file_has_nonascii {
1700        my $fn = shift;
1701        open(my $fh, '<', $fn)
1702                or die "unable to open $fn: $!\n";
1703        while (my $line = <$fh>) {
1704                return 1 if $line =~ /[^[:ascii:]]/;
1705        }
1706        return 0;
1707}
1708
1709sub body_or_subject_has_nonascii {
1710        my $fn = shift;
1711        open(my $fh, '<', $fn)
1712                or die "unable to open $fn: $!\n";
1713        while (my $line = <$fh>) {
1714                last if $line =~ /^$/;
1715                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1716        }
1717        while (my $line = <$fh>) {
1718                return 1 if $line =~ /[^[:ascii:]]/;
1719        }
1720        return 0;
1721}