d5a4826a1c5b25238c42965f2b373c5dfbfa4c39
   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 POSIX qw/strftime/;
  23use Term::ReadLine;
  24use Getopt::Long;
  25use Text::ParseWords;
  26use Term::ANSIColor;
  27use File::Temp qw/ tempdir tempfile /;
  28use File::Spec::Functions qw(catdir catfile);
  29use Git::Error qw(:try);
  30use Cwd qw(abs_path cwd);
  31use Git;
  32use Git::I18N;
  33use Git::Mail::Address;
  34use Net::Domain ();
  35use Net::SMTP ();
  36
  37Getopt::Long::Configure qw/ pass_through /;
  38
  39package FakeTerm;
  40sub new {
  41        my ($class, $reason) = @_;
  42        return bless \$reason, shift;
  43}
  44sub readline {
  45        my $self = shift;
  46        die "Cannot use readline on FakeTerm: $$self";
  47}
  48package main;
  49
  50
  51sub usage {
  52        print <<EOT;
  53git send-email [options] <file | directory | rev-list options >
  54git send-email --dump-aliases
  55
  56  Composing:
  57    --from                  <str>  * Email From:
  58    --[no-]to               <str>  * Email To:
  59    --[no-]cc               <str>  * Email Cc:
  60    --[no-]bcc              <str>  * Email Bcc:
  61    --subject               <str>  * Email "Subject:"
  62    --in-reply-to           <str>  * Email "In-Reply-To:"
  63    --[no-]xmailer                 * Add "X-Mailer:" header (default).
  64    --[no-]annotate                * Review each patch that will be sent in an editor.
  65    --compose                      * Open an editor for introduction.
  66    --compose-encoding      <str>  * Encoding to assume for introduction.
  67    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  68    --transfer-encoding     <str>  * Transfer encoding to use (quoted-printable, 8bit, base64)
  69
  70  Sending:
  71    --envelope-sender       <str>  * Email envelope sender.
  72    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  73                                     is optional. Default 'localhost'.
  74    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  75    --smtp-server-port      <int>  * Outgoing SMTP server port.
  76    --smtp-user             <str>  * Username for SMTP-AUTH.
  77    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  78    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  79    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  80    --smtp-ssl-cert-path    <str>  * Path to ca-certificates (either directory or file).
  81                                     Pass an empty string to disable certificate
  82                                     verification.
  83    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  84    --smtp-auth             <str>  * Space-separated list of allowed AUTH mechanisms.
  85                                     This setting forces to use one of the listed mechanisms.
  86    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  87
  88    --batch-size            <int>  * send max <int> message per connection.
  89    --relogin-delay         <int>  * delay <int> seconds between two successive login.
  90                                     This option can only be used with --batch-size
  91
  92  Automating:
  93    --identity              <str>  * Use the sendemail.<id> options.
  94    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  95    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  96    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  97    --[no-]cc-cover                * Email Cc: addresses in the cover letter.
  98    --[no-]to-cover                * Email To: addresses in the cover letter.
  99    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
 100    --[no-]suppress-from           * Send to self. Default off.
 101    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
 102    --[no-]thread                  * Use In-Reply-To: field. Default on.
 103
 104  Administering:
 105    --confirm               <str>  * Confirm recipients before sending;
 106                                     auto, cc, compose, always, or never.
 107    --quiet                        * Output one line of info per email.
 108    --dry-run                      * Don't actually send the emails.
 109    --[no-]validate                * Perform patch sanity checks. Default on.
 110    --[no-]format-patch            * understand any non optional arguments as
 111                                     `git format-patch` ones.
 112    --force                        * Send even if safety checks would prevent it.
 113
 114  Information:
 115    --dump-aliases                 * Dump configured aliases and exit.
 116
 117EOT
 118        exit(1);
 119}
 120
 121# most mail servers generate the Date: header, but not all...
 122sub format_2822_time {
 123        my ($time) = @_;
 124        my @localtm = localtime($time);
 125        my @gmttm = gmtime($time);
 126        my $localmin = $localtm[1] + $localtm[2] * 60;
 127        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 128        if ($localtm[0] != $gmttm[0]) {
 129                die __("local zone differs from GMT by a non-minute interval\n");
 130        }
 131        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 132                $localmin += 1440;
 133        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 134                $localmin -= 1440;
 135        } elsif ($gmttm[6] != $localtm[6]) {
 136                die __("local time offset greater than or equal to 24 hours\n");
 137        }
 138        my $offset = $localmin - $gmtmin;
 139        my $offhour = $offset / 60;
 140        my $offmin = abs($offset % 60);
 141        if (abs($offhour) >= 24) {
 142                die __("local time offset greater than or equal to 24 hours\n");
 143        }
 144
 145        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 146                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 147                       $localtm[3],
 148                       qw(Jan Feb Mar Apr May Jun
 149                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 150                       $localtm[5]+1900,
 151                       $localtm[2],
 152                       $localtm[1],
 153                       $localtm[0],
 154                       ($offset >= 0) ? '+' : '-',
 155                       abs($offhour),
 156                       $offmin,
 157                       );
 158}
 159
 160my $have_email_valid = eval { require Email::Valid; 1 };
 161my $smtp;
 162my $auth;
 163my $num_sent = 0;
 164
 165# Regexes for RFC 2047 productions.
 166my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/;
 167my $re_encoded_text = qr/[^? \000-\037\177-\377]+/;
 168my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 169
 170# Variables we fill in automatically, or via prompting:
 171my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 172        $initial_reply_to,$initial_subject,@files,
 173        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 174
 175my $envelope_sender;
 176
 177# Example reply to:
 178#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 179
 180my $repo = eval { Git->repository() };
 181my @repo = $repo ? ($repo) : ();
 182my $term = eval {
 183        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 184                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 185                : new Term::ReadLine 'git-send-email';
 186};
 187if ($@) {
 188        $term = new FakeTerm "$@: going non-interactive";
 189}
 190
 191# Behavior modification variables
 192my ($quiet, $dry_run) = (0, 0);
 193my $format_patch;
 194my $compose_filename;
 195my $force = 0;
 196my $dump_aliases = 0;
 197
 198# Handle interactive edition of files.
 199my $multiedit;
 200my $editor;
 201
 202sub do_edit {
 203        if (!defined($editor)) {
 204                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 205        }
 206        if (defined($multiedit) && !$multiedit) {
 207                map {
 208                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 209                        if (($? & 127) || ($? >> 8)) {
 210                                die(__("the editor exited uncleanly, aborting everything"));
 211                        }
 212                } @_;
 213        } else {
 214                system('sh', '-c', $editor.' "$@"', $editor, @_);
 215                if (($? & 127) || ($? >> 8)) {
 216                        die(__("the editor exited uncleanly, aborting everything"));
 217                }
 218        }
 219}
 220
 221# Variables with corresponding config settings
 222my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 223my ($cover_cc, $cover_to);
 224my ($to_cmd, $cc_cmd);
 225my ($smtp_server, $smtp_server_port, @smtp_server_options);
 226my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 227my ($batch_size, $relogin_delay);
 228my ($identity, $aliasfiletype, @alias_files, $smtp_domain, $smtp_auth);
 229my ($validate, $confirm);
 230my (@suppress_cc);
 231my ($auto_8bit_encoding);
 232my ($compose_encoding);
 233my ($target_xfer_encoding);
 234
 235my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 236
 237my %config_bool_settings = (
 238    "thread" => [\$thread, 1],
 239    "chainreplyto" => [\$chain_reply_to, 0],
 240    "suppressfrom" => [\$suppress_from, undef],
 241    "signedoffbycc" => [\$signed_off_by_cc, undef],
 242    "cccover" => [\$cover_cc, undef],
 243    "tocover" => [\$cover_to, undef],
 244    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 245    "validate" => [\$validate, 1],
 246    "multiedit" => [\$multiedit, undef],
 247    "annotate" => [\$annotate, undef],
 248    "xmailer" => [\$use_xmailer, 1]
 249);
 250
 251my %config_settings = (
 252    "smtpserver" => \$smtp_server,
 253    "smtpserverport" => \$smtp_server_port,
 254    "smtpserveroption" => \@smtp_server_options,
 255    "smtpuser" => \$smtp_authuser,
 256    "smtppass" => \$smtp_authpass,
 257    "smtpdomain" => \$smtp_domain,
 258    "smtpauth" => \$smtp_auth,
 259    "smtpbatchsize" => \$batch_size,
 260    "smtprelogindelay" => \$relogin_delay,
 261    "to" => \@initial_to,
 262    "tocmd" => \$to_cmd,
 263    "cc" => \@initial_cc,
 264    "cccmd" => \$cc_cmd,
 265    "aliasfiletype" => \$aliasfiletype,
 266    "bcc" => \@bcclist,
 267    "suppresscc" => \@suppress_cc,
 268    "envelopesender" => \$envelope_sender,
 269    "confirm"   => \$confirm,
 270    "from" => \$sender,
 271    "assume8bitencoding" => \$auto_8bit_encoding,
 272    "composeencoding" => \$compose_encoding,
 273    "transferencoding" => \$target_xfer_encoding,
 274);
 275
 276my %config_path_settings = (
 277    "aliasesfile" => \@alias_files,
 278    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 279);
 280
 281# Handle Uncouth Termination
 282sub signal_handler {
 283
 284        # Make text normal
 285        print color("reset"), "\n";
 286
 287        # SMTP password masked
 288        system "stty echo";
 289
 290        # tmp files from --compose
 291        if (defined $compose_filename) {
 292                if (-e $compose_filename) {
 293                        printf __("'%s' contains an intermediate version ".
 294                                  "of the email you were composing.\n"),
 295                                  $compose_filename;
 296                }
 297                if (-e ($compose_filename . ".final")) {
 298                        printf __("'%s.final' contains the composed email.\n"),
 299                                  $compose_filename;
 300                }
 301        }
 302
 303        exit;
 304};
 305
 306$SIG{TERM} = \&signal_handler;
 307$SIG{INT}  = \&signal_handler;
 308
 309# Begin by accumulating all the variables (defined above), that we will end up
 310# needing, first, from the command line:
 311
 312my $help;
 313my $rc = GetOptions("h" => \$help,
 314                    "dump-aliases" => \$dump_aliases);
 315usage() unless $rc;
 316die __("--dump-aliases incompatible with other options\n")
 317    if !$help and $dump_aliases and @ARGV;
 318$rc = GetOptions(
 319                    "sender|from=s" => \$sender,
 320                    "in-reply-to=s" => \$initial_reply_to,
 321                    "subject=s" => \$initial_subject,
 322                    "to=s" => \@initial_to,
 323                    "to-cmd=s" => \$to_cmd,
 324                    "no-to" => \$no_to,
 325                    "cc=s" => \@initial_cc,
 326                    "no-cc" => \$no_cc,
 327                    "bcc=s" => \@bcclist,
 328                    "no-bcc" => \$no_bcc,
 329                    "chain-reply-to!" => \$chain_reply_to,
 330                    "no-chain-reply-to" => sub {$chain_reply_to = 0},
 331                    "smtp-server=s" => \$smtp_server,
 332                    "smtp-server-option=s" => \@smtp_server_options,
 333                    "smtp-server-port=s" => \$smtp_server_port,
 334                    "smtp-user=s" => \$smtp_authuser,
 335                    "smtp-pass:s" => \$smtp_authpass,
 336                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 337                    "smtp-encryption=s" => \$smtp_encryption,
 338                    "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path,
 339                    "smtp-debug:i" => \$debug_net_smtp,
 340                    "smtp-domain:s" => \$smtp_domain,
 341                    "smtp-auth=s" => \$smtp_auth,
 342                    "identity=s" => \$identity,
 343                    "annotate!" => \$annotate,
 344                    "no-annotate" => sub {$annotate = 0},
 345                    "compose" => \$compose,
 346                    "quiet" => \$quiet,
 347                    "cc-cmd=s" => \$cc_cmd,
 348                    "suppress-from!" => \$suppress_from,
 349                    "no-suppress-from" => sub {$suppress_from = 0},
 350                    "suppress-cc=s" => \@suppress_cc,
 351                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 352                    "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0},
 353                    "cc-cover|cc-cover!" => \$cover_cc,
 354                    "no-cc-cover" => sub {$cover_cc = 0},
 355                    "to-cover|to-cover!" => \$cover_to,
 356                    "no-to-cover" => sub {$cover_to = 0},
 357                    "confirm=s" => \$confirm,
 358                    "dry-run" => \$dry_run,
 359                    "envelope-sender=s" => \$envelope_sender,
 360                    "thread!" => \$thread,
 361                    "no-thread" => sub {$thread = 0},
 362                    "validate!" => \$validate,
 363                    "no-validate" => sub {$validate = 0},
 364                    "transfer-encoding=s" => \$target_xfer_encoding,
 365                    "format-patch!" => \$format_patch,
 366                    "no-format-patch" => sub {$format_patch = 0},
 367                    "8bit-encoding=s" => \$auto_8bit_encoding,
 368                    "compose-encoding=s" => \$compose_encoding,
 369                    "force" => \$force,
 370                    "xmailer!" => \$use_xmailer,
 371                    "no-xmailer" => sub {$use_xmailer = 0},
 372                    "batch-size=i" => \$batch_size,
 373                    "relogin-delay=i" => \$relogin_delay,
 374         );
 375
 376usage() if $help;
 377unless ($rc) {
 378    usage();
 379}
 380
 381die __("Cannot run git format-patch from outside a repository\n")
 382        if $format_patch and not $repo;
 383
 384# Now, let's fill any that aren't set in with defaults:
 385
 386sub read_config {
 387        my ($prefix) = @_;
 388
 389        foreach my $setting (keys %config_bool_settings) {
 390                my $target = $config_bool_settings{$setting}->[0];
 391                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 392        }
 393
 394        foreach my $setting (keys %config_path_settings) {
 395                my $target = $config_path_settings{$setting};
 396                if (ref($target) eq "ARRAY") {
 397                        unless (@$target) {
 398                                my @values = Git::config_path(@repo, "$prefix.$setting");
 399                                @$target = @values if (@values && defined $values[0]);
 400                        }
 401                }
 402                else {
 403                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 404                }
 405        }
 406
 407        foreach my $setting (keys %config_settings) {
 408                my $target = $config_settings{$setting};
 409                next if $setting eq "to" and defined $no_to;
 410                next if $setting eq "cc" and defined $no_cc;
 411                next if $setting eq "bcc" and defined $no_bcc;
 412                if (ref($target) eq "ARRAY") {
 413                        unless (@$target) {
 414                                my @values = Git::config(@repo, "$prefix.$setting");
 415                                @$target = @values if (@values && defined $values[0]);
 416                        }
 417                }
 418                else {
 419                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 420                }
 421        }
 422
 423        if (!defined $smtp_encryption) {
 424                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 425                if (defined $enc) {
 426                        $smtp_encryption = $enc;
 427                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 428                        $smtp_encryption = 'ssl';
 429                }
 430        }
 431}
 432
 433# read configuration from [sendemail "$identity"], fall back on [sendemail]
 434$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 435read_config("sendemail.$identity") if (defined $identity);
 436read_config("sendemail");
 437
 438# fall back on builtin bool defaults
 439foreach my $setting (values %config_bool_settings) {
 440        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 441}
 442
 443# 'default' encryption is none -- this only prevents a warning
 444$smtp_encryption = '' unless (defined $smtp_encryption);
 445
 446# Set CC suppressions
 447my(%suppress_cc);
 448if (@suppress_cc) {
 449        foreach my $entry (@suppress_cc) {
 450                die sprintf(__("Unknown --suppress-cc field: '%s'\n"), $entry)
 451                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 452                $suppress_cc{$entry} = 1;
 453        }
 454}
 455
 456if ($suppress_cc{'all'}) {
 457        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 458                $suppress_cc{$entry} = 1;
 459        }
 460        delete $suppress_cc{'all'};
 461}
 462
 463# If explicit old-style ones are specified, they trump --suppress-cc.
 464$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 465$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 466
 467if ($suppress_cc{'body'}) {
 468        foreach my $entry (qw (sob bodycc)) {
 469                $suppress_cc{$entry} = 1;
 470        }
 471        delete $suppress_cc{'body'};
 472}
 473
 474# Set confirm's default value
 475my $confirm_unconfigured = !defined $confirm;
 476if ($confirm_unconfigured) {
 477        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 478};
 479die sprintf(__("Unknown --confirm setting: '%s'\n"), $confirm)
 480        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 481
 482# Debugging, print out the suppressions.
 483if (0) {
 484        print "suppressions:\n";
 485        foreach my $entry (keys %suppress_cc) {
 486                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 487        }
 488}
 489
 490my ($repoauthor, $repocommitter);
 491($repoauthor) = Git::ident_person(@repo, 'author');
 492($repocommitter) = Git::ident_person(@repo, 'committer');
 493
 494sub parse_address_line {
 495        return map { $_->format } Mail::Address->parse($_[0]);
 496}
 497
 498sub split_addrs {
 499        return quotewords('\s*,\s*', 1, @_);
 500}
 501
 502my %aliases;
 503
 504sub parse_sendmail_alias {
 505        local $_ = shift;
 506        if (/"/) {
 507                printf STDERR __("warning: sendmail alias with quotes is not supported: %s\n"), $_;
 508        } elsif (/:include:/) {
 509                printf STDERR __("warning: `:include:` not supported: %s\n"), $_;
 510        } elsif (/[\/|]/) {
 511                printf STDERR __("warning: `/file` or `|pipe` redirection not supported: %s\n"), $_;
 512        } elsif (/^(\S+?)\s*:\s*(.+)$/) {
 513                my ($alias, $addr) = ($1, $2);
 514                $aliases{$alias} = [ split_addrs($addr) ];
 515        } else {
 516                printf STDERR __("warning: sendmail line is not recognized: %s\n"), $_;
 517        }
 518}
 519
 520sub parse_sendmail_aliases {
 521        my $fh = shift;
 522        my $s = '';
 523        while (<$fh>) {
 524                chomp;
 525                next if /^\s*$/ || /^\s*#/;
 526                $s .= $_, next if $s =~ s/\\$// || s/^\s+//;
 527                parse_sendmail_alias($s) if $s;
 528                $s = $_;
 529        }
 530        $s =~ s/\\$//; # silently tolerate stray '\' on last line
 531        parse_sendmail_alias($s) if $s;
 532}
 533
 534my %parse_alias = (
 535        # multiline formats can be supported in the future
 536        mutt => sub { my $fh = shift; while (<$fh>) {
 537                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 538                        my ($alias, $addr) = ($1, $2);
 539                        $addr =~ s/#.*$//; # mutt allows # comments
 540                        # commas delimit multiple addresses
 541                        my @addr = split_addrs($addr);
 542
 543                        # quotes may be escaped in the file,
 544                        # unescape them so we do not double-escape them later.
 545                        s/\\"/"/g foreach @addr;
 546                        $aliases{$alias} = \@addr
 547                }}},
 548        mailrc => sub { my $fh = shift; while (<$fh>) {
 549                if (/^alias\s+(\S+)\s+(.*?)\s*$/) {
 550                        # spaces delimit multiple addresses
 551                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 552                }}},
 553        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 554                for (my $x = ''; defined($x); $x = $_) {
 555                        chomp $x;
 556                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 557                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 558                        $aliases{$1} = [ split_addrs($2) ];
 559                }},
 560        elm => sub  { my $fh = shift;
 561                      while (<$fh>) {
 562                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 563                              my ($alias, $addr) = ($1, $2);
 564                               $aliases{$alias} = [ split_addrs($addr) ];
 565                          }
 566                      } },
 567        sendmail => \&parse_sendmail_aliases,
 568        gnus => sub { my $fh = shift; while (<$fh>) {
 569                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 570                        $aliases{$1} = [ $2 ];
 571                }}}
 572);
 573
 574if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 575        foreach my $file (@alias_files) {
 576                open my $fh, '<', $file or die "opening $file: $!\n";
 577                $parse_alias{$aliasfiletype}->($fh);
 578                close $fh;
 579        }
 580}
 581
 582if ($dump_aliases) {
 583    print "$_\n" for (sort keys %aliases);
 584    exit(0);
 585}
 586
 587# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 588# $f is a revision list specification to be passed to format-patch.
 589sub is_format_patch_arg {
 590        return unless $repo;
 591        my $f = shift;
 592        try {
 593                $repo->command('rev-parse', '--verify', '--quiet', $f);
 594                if (defined($format_patch)) {
 595                        return $format_patch;
 596                }
 597                die sprintf(__ <<EOF, $f, $f);
 598File '%s' exists but it could also be the range of commits
 599to produce patches for.  Please disambiguate by...
 600
 601    * Saying "./%s" if you mean a file; or
 602    * Giving --format-patch option if you mean a range.
 603EOF
 604        } catch Git::Error::Command with {
 605                # Not a valid revision.  Treat it as a filename.
 606                return 0;
 607        }
 608}
 609
 610# Now that all the defaults are set, process the rest of the command line
 611# arguments and collect up the files that need to be processed.
 612my @rev_list_opts;
 613while (defined(my $f = shift @ARGV)) {
 614        if ($f eq "--") {
 615                push @rev_list_opts, "--", @ARGV;
 616                @ARGV = ();
 617        } elsif (-d $f and !is_format_patch_arg($f)) {
 618                opendir my $dh, $f
 619                        or die sprintf(__("Failed to opendir %s: %s"), $f, $!);
 620
 621                push @files, grep { -f $_ } map { catfile($f, $_) }
 622                                sort readdir $dh;
 623                closedir $dh;
 624        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 625                push @files, $f;
 626        } else {
 627                push @rev_list_opts, $f;
 628        }
 629}
 630
 631if (@rev_list_opts) {
 632        die __("Cannot run git format-patch from outside a repository\n")
 633                unless $repo;
 634        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 635}
 636
 637@files = handle_backup_files(@files);
 638
 639if ($validate) {
 640        foreach my $f (@files) {
 641                unless (-p $f) {
 642                        my $error = validate_patch($f);
 643                        $error and die sprintf(__("fatal: %s: %s\nwarning: no patches were sent\n"),
 644                                                  $f, $error);
 645                }
 646        }
 647}
 648
 649if (@files) {
 650        unless ($quiet) {
 651                print $_,"\n" for (@files);
 652        }
 653} else {
 654        print STDERR __("\nNo patch files specified!\n\n");
 655        usage();
 656}
 657
 658sub get_patch_subject {
 659        my $fn = shift;
 660        open (my $fh, '<', $fn);
 661        while (my $line = <$fh>) {
 662                next unless ($line =~ /^Subject: (.*)$/);
 663                close $fh;
 664                return "GIT: $1\n";
 665        }
 666        close $fh;
 667        die sprintf(__("No subject line in %s?"), $fn);
 668}
 669
 670if ($compose) {
 671        # Note that this does not need to be secure, but we will make a small
 672        # effort to have it be unique
 673        $compose_filename = ($repo ?
 674                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 675                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 676        open my $c, ">", $compose_filename
 677                or die sprintf(__("Failed to open for writing %s: %s"), $compose_filename, $!);
 678
 679
 680        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 681        my $tpl_subject = $initial_subject || '';
 682        my $tpl_reply_to = $initial_reply_to || '';
 683
 684        print $c <<EOT1, Git::prefix_lines("GIT: ", __ <<EOT2), <<EOT3;
 685From $tpl_sender # This line is ignored.
 686EOT1
 687Lines beginning in "GIT:" will be removed.
 688Consider including an overall diffstat or table of contents
 689for the patch you are writing.
 690
 691Clear the body content if you don't wish to send a summary.
 692EOT2
 693From: $tpl_sender
 694Subject: $tpl_subject
 695In-Reply-To: $tpl_reply_to
 696
 697EOT3
 698        for my $f (@files) {
 699                print $c get_patch_subject($f);
 700        }
 701        close $c;
 702
 703        if ($annotate) {
 704                do_edit($compose_filename, @files);
 705        } else {
 706                do_edit($compose_filename);
 707        }
 708
 709        open my $c2, ">", $compose_filename . ".final"
 710                or die sprintf(__("Failed to open %s.final: %s"), $compose_filename, $!);
 711
 712        open $c, "<", $compose_filename
 713                or die sprintf(__("Failed to open %s: %s"), $compose_filename, $!);
 714
 715        my $need_8bit_cte = file_has_nonascii($compose_filename);
 716        my $in_body = 0;
 717        my $summary_empty = 1;
 718        if (!defined $compose_encoding) {
 719                $compose_encoding = "UTF-8";
 720        }
 721        while(<$c>) {
 722                next if m/^GIT:/;
 723                if ($in_body) {
 724                        $summary_empty = 0 unless (/^\n$/);
 725                } elsif (/^\n$/) {
 726                        $in_body = 1;
 727                        if ($need_8bit_cte) {
 728                                print $c2 "MIME-Version: 1.0\n",
 729                                         "Content-Type: text/plain; ",
 730                                           "charset=$compose_encoding\n",
 731                                         "Content-Transfer-Encoding: 8bit\n";
 732                        }
 733                } elsif (/^MIME-Version:/i) {
 734                        $need_8bit_cte = 0;
 735                } elsif (/^Subject:\s*(.+)\s*$/i) {
 736                        $initial_subject = $1;
 737                        my $subject = $initial_subject;
 738                        $_ = "Subject: " .
 739                                quote_subject($subject, $compose_encoding) .
 740                                "\n";
 741                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 742                        $initial_reply_to = $1;
 743                        next;
 744                } elsif (/^From:\s*(.+)\s*$/i) {
 745                        $sender = $1;
 746                        next;
 747                } elsif (/^(?:To|Cc|Bcc):/i) {
 748                        print __("To/Cc/Bcc fields are not interpreted yet, they have been ignored\n");
 749                        next;
 750                }
 751                print $c2 $_;
 752        }
 753        close $c;
 754        close $c2;
 755
 756        if ($summary_empty) {
 757                print __("Summary email is empty, skipping it\n");
 758                $compose = -1;
 759        }
 760} elsif ($annotate) {
 761        do_edit(@files);
 762}
 763
 764sub ask {
 765        my ($prompt, %arg) = @_;
 766        my $valid_re = $arg{valid_re};
 767        my $default = $arg{default};
 768        my $confirm_only = $arg{confirm_only};
 769        my $resp;
 770        my $i = 0;
 771        return defined $default ? $default : undef
 772                unless defined $term->IN and defined fileno($term->IN) and
 773                       defined $term->OUT and defined fileno($term->OUT);
 774        while ($i++ < 10) {
 775                $resp = $term->readline($prompt);
 776                if (!defined $resp) { # EOF
 777                        print "\n";
 778                        return defined $default ? $default : undef;
 779                }
 780                if ($resp eq '' and defined $default) {
 781                        return $default;
 782                }
 783                if (!defined $valid_re or $resp =~ /$valid_re/) {
 784                        return $resp;
 785                }
 786                if ($confirm_only) {
 787                        my $yesno = $term->readline(
 788                                # TRANSLATORS: please keep [y/N] as is.
 789                                sprintf(__("Are you sure you want to use <%s> [y/N]? "), $resp));
 790                        if (defined $yesno && $yesno =~ /y/i) {
 791                                return $resp;
 792                        }
 793                }
 794        }
 795        return;
 796}
 797
 798my %broken_encoding;
 799
 800sub file_declares_8bit_cte {
 801        my $fn = shift;
 802        open (my $fh, '<', $fn);
 803        while (my $line = <$fh>) {
 804                last if ($line =~ /^$/);
 805                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 806        }
 807        close $fh;
 808        return 0;
 809}
 810
 811foreach my $f (@files) {
 812        next unless (body_or_subject_has_nonascii($f)
 813                     && !file_declares_8bit_cte($f));
 814        $broken_encoding{$f} = 1;
 815}
 816
 817if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 818        print __("The following files are 8bit, but do not declare " .
 819                 "a Content-Transfer-Encoding.\n");
 820        foreach my $f (sort keys %broken_encoding) {
 821                print "    $f\n";
 822        }
 823        $auto_8bit_encoding = ask(__("Which 8bit encoding should I declare [UTF-8]? "),
 824                                  valid_re => qr/.{4}/, confirm_only => 1,
 825                                  default => "UTF-8");
 826}
 827
 828if (!$force) {
 829        for my $f (@files) {
 830                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 831                        die sprintf(__("Refusing to send because the patch\n\t%s\n"
 832                                . "has the template subject '*** SUBJECT HERE ***'. "
 833                                . "Pass --force if you really want to send.\n"), $f);
 834                }
 835        }
 836}
 837
 838if (defined $sender) {
 839        $sender =~ s/^\s+|\s+$//g;
 840        ($sender) = expand_aliases($sender);
 841} else {
 842        $sender = $repoauthor || $repocommitter || '';
 843}
 844
 845# $sender could be an already sanitized address
 846# (e.g. sendemail.from could be manually sanitized by user).
 847# But it's a no-op to run sanitize_address on an already sanitized address.
 848$sender = sanitize_address($sender);
 849
 850my $to_whom = __("To whom should the emails be sent (if anyone)?");
 851my $prompting = 0;
 852if (!@initial_to && !defined $to_cmd) {
 853        my $to = ask("$to_whom ",
 854                     default => "",
 855                     valid_re => qr/\@.*\./, confirm_only => 1);
 856        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 857        $prompting++;
 858}
 859
 860sub expand_aliases {
 861        return map { expand_one_alias($_) } @_;
 862}
 863
 864my %EXPANDED_ALIASES;
 865sub expand_one_alias {
 866        my $alias = shift;
 867        if ($EXPANDED_ALIASES{$alias}) {
 868                die sprintf(__("fatal: alias '%s' expands to itself\n"), $alias);
 869        }
 870        local $EXPANDED_ALIASES{$alias} = 1;
 871        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 872}
 873
 874@initial_to = process_address_list(@initial_to);
 875@initial_cc = process_address_list(@initial_cc);
 876@bcclist = process_address_list(@bcclist);
 877
 878if ($thread && !defined $initial_reply_to && $prompting) {
 879        $initial_reply_to = ask(
 880                __("Message-ID to be used as In-Reply-To for the first email (if any)? "),
 881                default => "",
 882                valid_re => qr/\@.*\./, confirm_only => 1);
 883}
 884if (defined $initial_reply_to) {
 885        $initial_reply_to =~ s/^\s*<?//;
 886        $initial_reply_to =~ s/>?\s*$//;
 887        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 888}
 889
 890if (!defined $smtp_server) {
 891        my @sendmail_paths = qw( /usr/sbin/sendmail /usr/lib/sendmail );
 892        push @sendmail_paths, map {"$_/sendmail"} split /:/, $ENV{PATH};
 893        foreach (@sendmail_paths) {
 894                if (-x $_) {
 895                        $smtp_server = $_;
 896                        last;
 897                }
 898        }
 899        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 900}
 901
 902if ($compose && $compose > 0) {
 903        @files = ($compose_filename . ".final", @files);
 904}
 905
 906# Variables we set as part of the loop over files
 907our ($message_id, %mail, $subject, $reply_to, $references, $message,
 908        $needs_confirm, $message_num, $ask_default);
 909
 910sub extract_valid_address {
 911        my $address = shift;
 912        my $local_part_regexp = qr/[^<>"\s@]+/;
 913        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 914
 915        # check for a local address:
 916        return $address if ($address =~ /^($local_part_regexp)$/);
 917
 918        $address =~ s/^\s*<(.*)>\s*$/$1/;
 919        if ($have_email_valid) {
 920                return scalar Email::Valid->address($address);
 921        }
 922
 923        # less robust/correct than the monster regexp in Email::Valid,
 924        # but still does a 99% job, and one less dependency
 925        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 926        return;
 927}
 928
 929sub extract_valid_address_or_die {
 930        my $address = shift;
 931        $address = extract_valid_address($address);
 932        die sprintf(__("error: unable to extract a valid address from: %s\n"), $address)
 933                if !$address;
 934        return $address;
 935}
 936
 937sub validate_address {
 938        my $address = shift;
 939        while (!extract_valid_address($address)) {
 940                printf STDERR __("error: unable to extract a valid address from: %s\n"), $address;
 941                # TRANSLATORS: Make sure to include [q] [d] [e] in your
 942                # translation. The program will only accept English input
 943                # at this point.
 944                $_ = ask(__("What to do with this address? ([q]uit|[d]rop|[e]dit): "),
 945                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 946                        default => 'q');
 947                if (/^d/i) {
 948                        return undef;
 949                } elsif (/^q/i) {
 950                        cleanup_compose_files();
 951                        exit(0);
 952                }
 953                $address = ask("$to_whom ",
 954                        default => "",
 955                        valid_re => qr/\@.*\./, confirm_only => 1);
 956        }
 957        return $address;
 958}
 959
 960sub validate_address_list {
 961        return (grep { defined $_ }
 962                map { validate_address($_) } @_);
 963}
 964
 965# Usually don't need to change anything below here.
 966
 967# we make a "fake" message id by taking the current number
 968# of seconds since the beginning of Unix time and tacking on
 969# a random number to the end, in case we are called quicker than
 970# 1 second since the last time we were called.
 971
 972# We'll setup a template for the message id, using the "from" address:
 973
 974my ($message_id_stamp, $message_id_serial);
 975sub make_message_id {
 976        my $uniq;
 977        if (!defined $message_id_stamp) {
 978                $message_id_stamp = strftime("%Y%m%d%H%M%S.$$", gmtime(time));
 979                $message_id_serial = 0;
 980        }
 981        $message_id_serial++;
 982        $uniq = "$message_id_stamp-$message_id_serial";
 983
 984        my $du_part;
 985        for ($sender, $repocommitter, $repoauthor) {
 986                $du_part = extract_valid_address(sanitize_address($_));
 987                last if (defined $du_part and $du_part ne '');
 988        }
 989        if (not defined $du_part or $du_part eq '') {
 990                require Sys::Hostname;
 991                $du_part = 'user@' . Sys::Hostname::hostname();
 992        }
 993        my $message_id_template = "<%s-%s>";
 994        $message_id = sprintf($message_id_template, $uniq, $du_part);
 995        #print "new message id = $message_id\n"; # Was useful for debugging
 996}
 997
 998
 999
1000$time = time - scalar $#files;
1001
1002sub unquote_rfc2047 {
1003        local ($_) = @_;
1004        my $charset;
1005        my $sep = qr/[ \t]+/;
1006        s{$re_encoded_word(?:$sep$re_encoded_word)*}{
1007                my @words = split $sep, $&;
1008                foreach (@words) {
1009                        m/$re_encoded_word/;
1010                        $charset = $1;
1011                        my $encoding = $2;
1012                        my $text = $3;
1013                        if ($encoding eq 'q' || $encoding eq 'Q') {
1014                                $_ = $text;
1015                                s/_/ /g;
1016                                s/=([0-9A-F]{2})/chr(hex($1))/egi;
1017                        } else {
1018                                # other encodings not supported yet
1019                        }
1020                }
1021                join '', @words;
1022        }eg;
1023        return wantarray ? ($_, $charset) : $_;
1024}
1025
1026sub quote_rfc2047 {
1027        local $_ = shift;
1028        my $encoding = shift || 'UTF-8';
1029        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
1030        s/(.*)/=\?$encoding\?q\?$1\?=/;
1031        return $_;
1032}
1033
1034sub is_rfc2047_quoted {
1035        my $s = shift;
1036        length($s) <= 75 &&
1037        $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o;
1038}
1039
1040sub subject_needs_rfc2047_quoting {
1041        my $s = shift;
1042
1043        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
1044}
1045
1046sub quote_subject {
1047        local $subject = shift;
1048        my $encoding = shift || 'UTF-8';
1049
1050        if (subject_needs_rfc2047_quoting($subject)) {
1051                return quote_rfc2047($subject, $encoding);
1052        }
1053        return $subject;
1054}
1055
1056# use the simplest quoting being able to handle the recipient
1057sub sanitize_address {
1058        my ($recipient) = @_;
1059
1060        # remove garbage after email address
1061        $recipient =~ s/(.*>).*$/$1/;
1062
1063        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
1064
1065        if (not $recipient_name) {
1066                return $recipient;
1067        }
1068
1069        # if recipient_name is already quoted, do nothing
1070        if (is_rfc2047_quoted($recipient_name)) {
1071                return $recipient;
1072        }
1073
1074        # remove non-escaped quotes
1075        $recipient_name =~ s/(^|[^\\])"/$1/g;
1076
1077        # rfc2047 is needed if a non-ascii char is included
1078        if ($recipient_name =~ /[^[:ascii:]]/) {
1079                $recipient_name = quote_rfc2047($recipient_name);
1080        }
1081
1082        # double quotes are needed if specials or CTLs are included
1083        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
1084                $recipient_name =~ s/([\\\r])/\\$1/g;
1085                $recipient_name = qq["$recipient_name"];
1086        }
1087
1088        return "$recipient_name $recipient_addr";
1089
1090}
1091
1092sub strip_garbage_one_address {
1093        my ($addr) = @_;
1094        chomp $addr;
1095        if ($addr =~ /^(("[^"]*"|[^"<]*)? *<[^>]*>).*/) {
1096                # "Foo Bar" <foobar@example.com> [possibly garbage here]
1097                # Foo Bar <foobar@example.com> [possibly garbage here]
1098                return $1;
1099        }
1100        if ($addr =~ /^(<[^>]*>).*/) {
1101                # <foo@example.com> [possibly garbage here]
1102                # if garbage contains other addresses, they are ignored.
1103                return $1;
1104        }
1105        if ($addr =~ /^([^"#,\s]*)/) {
1106                # address without quoting: remove anything after the address
1107                return $1;
1108        }
1109        return $addr;
1110}
1111
1112sub sanitize_address_list {
1113        return (map { sanitize_address($_) } @_);
1114}
1115
1116sub process_address_list {
1117        my @addr_list = map { parse_address_line($_) } @_;
1118        @addr_list = expand_aliases(@addr_list);
1119        @addr_list = sanitize_address_list(@addr_list);
1120        @addr_list = validate_address_list(@addr_list);
1121        return @addr_list;
1122}
1123
1124# Returns the local Fully Qualified Domain Name (FQDN) if available.
1125#
1126# Tightly configured MTAa require that a caller sends a real DNS
1127# domain name that corresponds the IP address in the HELO/EHLO
1128# handshake. This is used to verify the connection and prevent
1129# spammers from trying to hide their identity. If the DNS and IP don't
1130# match, the receiveing MTA may deny the connection.
1131#
1132# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1133#
1134# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1135# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1136#
1137# This maildomain*() code is based on ideas in Perl library Test::Reporter
1138# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1139
1140sub valid_fqdn {
1141        my $domain = shift;
1142        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1143}
1144
1145sub maildomain_net {
1146        my $maildomain;
1147
1148        my $domain = Net::Domain::domainname();
1149        $maildomain = $domain if valid_fqdn($domain);
1150
1151        return $maildomain;
1152}
1153
1154sub maildomain_mta {
1155        my $maildomain;
1156
1157        for my $host (qw(mailhost localhost)) {
1158                my $smtp = Net::SMTP->new($host);
1159                if (defined $smtp) {
1160                        my $domain = $smtp->domain;
1161                        $smtp->quit;
1162
1163                        $maildomain = $domain if valid_fqdn($domain);
1164
1165                        last if $maildomain;
1166                }
1167        }
1168
1169        return $maildomain;
1170}
1171
1172sub maildomain {
1173        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1174}
1175
1176sub smtp_host_string {
1177        if (defined $smtp_server_port) {
1178                return "$smtp_server:$smtp_server_port";
1179        } else {
1180                return $smtp_server;
1181        }
1182}
1183
1184# Returns 1 if authentication succeeded or was not necessary
1185# (smtp_user was not specified), and 0 otherwise.
1186
1187sub smtp_auth_maybe {
1188        if (!defined $smtp_authuser || $auth) {
1189                return 1;
1190        }
1191
1192        # Workaround AUTH PLAIN/LOGIN interaction defect
1193        # with Authen::SASL::Cyrus
1194        eval {
1195                require Authen::SASL;
1196                Authen::SASL->import(qw(Perl));
1197        };
1198
1199        # Check mechanism naming as defined in:
1200        # https://tools.ietf.org/html/rfc4422#page-8
1201        if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
1202                die "invalid smtp auth: '${smtp_auth}'";
1203        }
1204
1205        # TODO: Authentication may fail not because credentials were
1206        # invalid but due to other reasons, in which we should not
1207        # reject credentials.
1208        $auth = Git::credential({
1209                'protocol' => 'smtp',
1210                'host' => smtp_host_string(),
1211                'username' => $smtp_authuser,
1212                # if there's no password, "git credential fill" will
1213                # give us one, otherwise it'll just pass this one.
1214                'password' => $smtp_authpass
1215        }, sub {
1216                my $cred = shift;
1217
1218                if ($smtp_auth) {
1219                        my $sasl = Authen::SASL->new(
1220                                mechanism => $smtp_auth,
1221                                callback => {
1222                                        user => $cred->{'username'},
1223                                        pass => $cred->{'password'},
1224                                        authname => $cred->{'username'},
1225                                }
1226                        );
1227
1228                        return !!$smtp->auth($sasl);
1229                }
1230
1231                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1232        });
1233
1234        return $auth;
1235}
1236
1237sub ssl_verify_params {
1238        eval {
1239                require IO::Socket::SSL;
1240                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1241        };
1242        if ($@) {
1243                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1244                return;
1245        }
1246
1247        if (!defined $smtp_ssl_cert_path) {
1248                # use the OpenSSL defaults
1249                return (SSL_verify_mode => SSL_VERIFY_PEER());
1250        }
1251
1252        if ($smtp_ssl_cert_path eq "") {
1253                return (SSL_verify_mode => SSL_VERIFY_NONE());
1254        } elsif (-d $smtp_ssl_cert_path) {
1255                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1256                        SSL_ca_path => $smtp_ssl_cert_path);
1257        } elsif (-f $smtp_ssl_cert_path) {
1258                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1259                        SSL_ca_file => $smtp_ssl_cert_path);
1260        } else {
1261                die sprintf(__("CA path \"%s\" does not exist"), $smtp_ssl_cert_path);
1262        }
1263}
1264
1265sub file_name_is_absolute {
1266        my ($path) = @_;
1267
1268        # msys does not grok DOS drive-prefixes
1269        if ($^O eq 'msys') {
1270                return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#)
1271        }
1272
1273        require File::Spec::Functions;
1274        return File::Spec::Functions::file_name_is_absolute($path);
1275}
1276
1277# Returns 1 if the message was sent, and 0 otherwise.
1278# In actuality, the whole program dies when there
1279# is an error sending a message.
1280
1281sub send_message {
1282        my @recipients = unique_email_list(@to);
1283        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1284                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1285                    }
1286               @cc);
1287        my $to = join (",\n\t", @recipients);
1288        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1289        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1290        my $date = format_2822_time($time++);
1291        my $gitversion = '@@GIT_VERSION@@';
1292        if ($gitversion =~ m/..GIT_VERSION../) {
1293            $gitversion = Git::version();
1294        }
1295
1296        my $cc = join(",\n\t", unique_email_list(@cc));
1297        my $ccline = "";
1298        if ($cc ne '') {
1299                $ccline = "\nCc: $cc";
1300        }
1301        make_message_id() unless defined($message_id);
1302
1303        my $header = "From: $sender
1304To: $to${ccline}
1305Subject: $subject
1306Date: $date
1307Message-Id: $message_id
1308";
1309        if ($use_xmailer) {
1310                $header .= "X-Mailer: git-send-email $gitversion\n";
1311        }
1312        if ($reply_to) {
1313
1314                $header .= "In-Reply-To: $reply_to\n";
1315                $header .= "References: $references\n";
1316        }
1317        if (@xh) {
1318                $header .= join("\n", @xh) . "\n";
1319        }
1320
1321        my @sendmail_parameters = ('-i', @recipients);
1322        my $raw_from = $sender;
1323        if (defined $envelope_sender && $envelope_sender ne "auto") {
1324                $raw_from = $envelope_sender;
1325        }
1326        $raw_from = extract_valid_address($raw_from);
1327        unshift (@sendmail_parameters,
1328                        '-f', $raw_from) if(defined $envelope_sender);
1329
1330        if ($needs_confirm && !$dry_run) {
1331                print "\n$header\n";
1332                if ($needs_confirm eq "inform") {
1333                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1334                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1335                        print __ <<EOF ;
1336    The Cc list above has been expanded by additional
1337    addresses found in the patch commit message. By default
1338    send-email prompts before sending whenever this occurs.
1339    This behavior is controlled by the sendemail.confirm
1340    configuration setting.
1341
1342    For additional information, run 'git send-email --help'.
1343    To retain the current behavior, but squelch this message,
1344    run 'git config --global sendemail.confirm auto'.
1345
1346EOF
1347                }
1348                # TRANSLATORS: Make sure to include [y] [n] [q] [a] in your
1349                # translation. The program will only accept English input
1350                # at this point.
1351                $_ = ask(__("Send this email? ([y]es|[n]o|[q]uit|[a]ll): "),
1352                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1353                         default => $ask_default);
1354                die __("Send this email reply required") unless defined $_;
1355                if (/^n/i) {
1356                        return 0;
1357                } elsif (/^q/i) {
1358                        cleanup_compose_files();
1359                        exit(0);
1360                } elsif (/^a/i) {
1361                        $confirm = 'never';
1362                }
1363        }
1364
1365        unshift (@sendmail_parameters, @smtp_server_options);
1366
1367        if ($dry_run) {
1368                # We don't want to send the email.
1369        } elsif (file_name_is_absolute($smtp_server)) {
1370                my $pid = open my $sm, '|-';
1371                defined $pid or die $!;
1372                if (!$pid) {
1373                        exec($smtp_server, @sendmail_parameters) or die $!;
1374                }
1375                print $sm "$header\n$message";
1376                close $sm or die $!;
1377        } else {
1378
1379                if (!defined $smtp_server) {
1380                        die __("The required SMTP server is not properly defined.")
1381                }
1382
1383                require Net::SMTP;
1384                my $use_net_smtp_ssl = version->parse($Net::SMTP::VERSION) < version->parse("2.34");
1385                $smtp_domain ||= maildomain();
1386
1387                if ($smtp_encryption eq 'ssl') {
1388                        $smtp_server_port ||= 465; # ssmtp
1389                        require IO::Socket::SSL;
1390
1391                        # Suppress "variable accessed once" warning.
1392                        {
1393                                no warnings 'once';
1394                                $IO::Socket::SSL::DEBUG = 1;
1395                        }
1396
1397                        # Net::SMTP::SSL->new() does not forward any SSL options
1398                        IO::Socket::SSL::set_client_defaults(
1399                                ssl_verify_params());
1400
1401                        if ($use_net_smtp_ssl) {
1402                                require Net::SMTP::SSL;
1403                                $smtp ||= Net::SMTP::SSL->new($smtp_server,
1404                                                              Hello => $smtp_domain,
1405                                                              Port => $smtp_server_port,
1406                                                              Debug => $debug_net_smtp);
1407                        }
1408                        else {
1409                                $smtp ||= Net::SMTP->new($smtp_server,
1410                                                         Hello => $smtp_domain,
1411                                                         Port => $smtp_server_port,
1412                                                         Debug => $debug_net_smtp,
1413                                                         SSL => 1);
1414                        }
1415                }
1416                else {
1417                        $smtp_server_port ||= 25;
1418                        $smtp ||= Net::SMTP->new($smtp_server,
1419                                                 Hello => $smtp_domain,
1420                                                 Debug => $debug_net_smtp,
1421                                                 Port => $smtp_server_port);
1422                        if ($smtp_encryption eq 'tls' && $smtp) {
1423                                if ($use_net_smtp_ssl) {
1424                                        $smtp->command('STARTTLS');
1425                                        $smtp->response();
1426                                        if ($smtp->code != 220) {
1427                                                die sprintf(__("Server does not support STARTTLS! %s"), $smtp->message);
1428                                        }
1429                                        require Net::SMTP::SSL;
1430                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1431                                                                          ssl_verify_params())
1432                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1433                                }
1434                                else {
1435                                        $smtp->starttls(ssl_verify_params())
1436                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1437                                }
1438                                $smtp_encryption = '';
1439                                # Send EHLO again to receive fresh
1440                                # supported commands
1441                                $smtp->hello($smtp_domain);
1442                        }
1443                }
1444
1445                if (!$smtp) {
1446                        die __("Unable to initialize SMTP properly. Check config and use --smtp-debug."),
1447                            " VALUES: server=$smtp_server ",
1448                            "encryption=$smtp_encryption ",
1449                            "hello=$smtp_domain",
1450                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1451                }
1452
1453                smtp_auth_maybe or die $smtp->message;
1454
1455                $smtp->mail( $raw_from ) or die $smtp->message;
1456                $smtp->to( @recipients ) or die $smtp->message;
1457                $smtp->data or die $smtp->message;
1458                $smtp->datasend("$header\n") or die $smtp->message;
1459                my @lines = split /^/, $message;
1460                foreach my $line (@lines) {
1461                        $smtp->datasend("$line") or die $smtp->message;
1462                }
1463                $smtp->dataend() or die $smtp->message;
1464                $smtp->code =~ /250|200/ or die sprintf(__("Failed to send %s\n"), $subject).$smtp->message;
1465        }
1466        if ($quiet) {
1467                printf($dry_run ? __("Dry-Sent %s\n") : __("Sent %s\n"), $subject);
1468        } else {
1469                print($dry_run ? __("Dry-OK. Log says:\n") : __("OK. Log says:\n"));
1470                if (!file_name_is_absolute($smtp_server)) {
1471                        print "Server: $smtp_server\n";
1472                        print "MAIL FROM:<$raw_from>\n";
1473                        foreach my $entry (@recipients) {
1474                            print "RCPT TO:<$entry>\n";
1475                        }
1476                } else {
1477                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1478                }
1479                print $header, "\n";
1480                if ($smtp) {
1481                        print __("Result: "), $smtp->code, ' ',
1482                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1483                } else {
1484                        print __("Result: OK\n");
1485                }
1486        }
1487
1488        return 1;
1489}
1490
1491$reply_to = $initial_reply_to;
1492$references = $initial_reply_to || '';
1493$subject = $initial_subject;
1494$message_num = 0;
1495
1496foreach my $t (@files) {
1497        open my $fh, "<", $t or die sprintf(__("can't open file %s"), $t);
1498
1499        my $author = undef;
1500        my $sauthor = undef;
1501        my $author_encoding;
1502        my $has_content_type;
1503        my $body_encoding;
1504        my $xfer_encoding;
1505        my $has_mime_version;
1506        @to = ();
1507        @cc = ();
1508        @xh = ();
1509        my $input_format = undef;
1510        my @header = ();
1511        $message = "";
1512        $message_num++;
1513        # First unfold multiline header fields
1514        while(<$fh>) {
1515                last if /^\s*$/;
1516                if (/^\s+\S/ and @header) {
1517                        chomp($header[$#header]);
1518                        s/^\s+/ /;
1519                        $header[$#header] .= $_;
1520            } else {
1521                        push(@header, $_);
1522                }
1523        }
1524        # Now parse the header
1525        foreach(@header) {
1526                if (/^From /) {
1527                        $input_format = 'mbox';
1528                        next;
1529                }
1530                chomp;
1531                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1532                        $input_format = 'mbox';
1533                }
1534
1535                if (defined $input_format && $input_format eq 'mbox') {
1536                        if (/^Subject:\s+(.*)$/i) {
1537                                $subject = $1;
1538                        }
1539                        elsif (/^From:\s+(.*)$/i) {
1540                                ($author, $author_encoding) = unquote_rfc2047($1);
1541                                $sauthor = sanitize_address($author);
1542                                next if $suppress_cc{'author'};
1543                                next if $suppress_cc{'self'} and $sauthor eq $sender;
1544                                printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1545                                        $1, $_) unless $quiet;
1546                                push @cc, $1;
1547                        }
1548                        elsif (/^To:\s+(.*)$/i) {
1549                                foreach my $addr (parse_address_line($1)) {
1550                                        printf(__("(mbox) Adding to: %s from line '%s'\n"),
1551                                                $addr, $_) unless $quiet;
1552                                        push @to, $addr;
1553                                }
1554                        }
1555                        elsif (/^Cc:\s+(.*)$/i) {
1556                                foreach my $addr (parse_address_line($1)) {
1557                                        my $qaddr = unquote_rfc2047($addr);
1558                                        my $saddr = sanitize_address($qaddr);
1559                                        if ($saddr eq $sender) {
1560                                                next if ($suppress_cc{'self'});
1561                                        } else {
1562                                                next if ($suppress_cc{'cc'});
1563                                        }
1564                                        printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1565                                                $addr, $_) unless $quiet;
1566                                        push @cc, $addr;
1567                                }
1568                        }
1569                        elsif (/^Content-type:/i) {
1570                                $has_content_type = 1;
1571                                if (/charset="?([^ "]+)/) {
1572                                        $body_encoding = $1;
1573                                }
1574                                push @xh, $_;
1575                        }
1576                        elsif (/^MIME-Version/i) {
1577                                $has_mime_version = 1;
1578                                push @xh, $_;
1579                        }
1580                        elsif (/^Message-Id: (.*)/i) {
1581                                $message_id = $1;
1582                        }
1583                        elsif (/^Content-Transfer-Encoding: (.*)/i) {
1584                                $xfer_encoding = $1 if not defined $xfer_encoding;
1585                        }
1586                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1587                                push @xh, $_;
1588                        }
1589
1590                } else {
1591                        # In the traditional
1592                        # "send lots of email" format,
1593                        # line 1 = cc
1594                        # line 2 = subject
1595                        # So let's support that, too.
1596                        $input_format = 'lots';
1597                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1598                                printf(__("(non-mbox) Adding cc: %s from line '%s'\n"),
1599                                        $_, $_) unless $quiet;
1600                                push @cc, $_;
1601                        } elsif (!defined $subject) {
1602                                $subject = $_;
1603                        }
1604                }
1605        }
1606        # Now parse the message body
1607        while(<$fh>) {
1608                $message .=  $_;
1609                if (/^(Signed-off-by|Cc): (.*)/i) {
1610                        chomp;
1611                        my ($what, $c) = ($1, $2);
1612                        # strip garbage for the address we'll use:
1613                        $c = strip_garbage_one_address($c);
1614                        # sanitize a bit more to decide whether to suppress the address:
1615                        my $sc = sanitize_address($c);
1616                        if ($sc eq $sender) {
1617                                next if ($suppress_cc{'self'});
1618                        } else {
1619                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1620                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1621                        }
1622                        push @cc, $c;
1623                        printf(__("(body) Adding cc: %s from line '%s'\n"),
1624                                $c, $_) unless $quiet;
1625                }
1626        }
1627        close $fh;
1628
1629        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1630                if defined $to_cmd;
1631        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1632                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1633
1634        if ($broken_encoding{$t} && !$has_content_type) {
1635                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1636                $has_content_type = 1;
1637                push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding";
1638                $body_encoding = $auto_8bit_encoding;
1639        }
1640
1641        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1642                $subject = quote_subject($subject, $auto_8bit_encoding);
1643        }
1644
1645        if (defined $sauthor and $sauthor ne $sender) {
1646                $message = "From: $author\n\n$message";
1647                if (defined $author_encoding) {
1648                        if ($has_content_type) {
1649                                if ($body_encoding eq $author_encoding) {
1650                                        # ok, we already have the right encoding
1651                                }
1652                                else {
1653                                        # uh oh, we should re-encode
1654                                }
1655                        }
1656                        else {
1657                                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1658                                $has_content_type = 1;
1659                                push @xh,
1660                                  "Content-Type: text/plain; charset=$author_encoding";
1661                        }
1662                }
1663        }
1664        if (defined $target_xfer_encoding) {
1665                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1666                $message = apply_transfer_encoding(
1667                        $message, $xfer_encoding, $target_xfer_encoding);
1668                $xfer_encoding = $target_xfer_encoding;
1669        }
1670        if (defined $xfer_encoding) {
1671                push @xh, "Content-Transfer-Encoding: $xfer_encoding";
1672        }
1673        if (defined $xfer_encoding or $has_content_type) {
1674                unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version;
1675        }
1676
1677        $needs_confirm = (
1678                $confirm eq "always" or
1679                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1680                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1681        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1682
1683        @to = process_address_list(@to);
1684        @cc = process_address_list(@cc);
1685
1686        @to = (@initial_to, @to);
1687        @cc = (@initial_cc, @cc);
1688
1689        if ($message_num == 1) {
1690                if (defined $cover_cc and $cover_cc) {
1691                        @initial_cc = @cc;
1692                }
1693                if (defined $cover_to and $cover_to) {
1694                        @initial_to = @to;
1695                }
1696        }
1697
1698        my $message_was_sent = send_message();
1699
1700        # set up for the next message
1701        if ($thread && $message_was_sent &&
1702                ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
1703                $message_num == 1)) {
1704                $reply_to = $message_id;
1705                if (length $references > 0) {
1706                        $references .= "\n $message_id";
1707                } else {
1708                        $references = "$message_id";
1709                }
1710        }
1711        $message_id = undef;
1712        $num_sent++;
1713        if (defined $batch_size && $num_sent == $batch_size) {
1714                $num_sent = 0;
1715                $smtp->quit if defined $smtp;
1716                undef $smtp;
1717                undef $auth;
1718                sleep($relogin_delay) if defined $relogin_delay;
1719        }
1720}
1721
1722# Execute a command (e.g. $to_cmd) to get a list of email addresses
1723# and return a results array
1724sub recipients_cmd {
1725        my ($prefix, $what, $cmd, $file) = @_;
1726
1727        my @addresses = ();
1728        open my $fh, "-|", "$cmd \Q$file\E"
1729            or die sprintf(__("(%s) Could not execute '%s'"), $prefix, $cmd);
1730        while (my $address = <$fh>) {
1731                $address =~ s/^\s*//g;
1732                $address =~ s/\s*$//g;
1733                $address = sanitize_address($address);
1734                next if ($address eq $sender and $suppress_cc{'self'});
1735                push @addresses, $address;
1736                printf(__("(%s) Adding %s: %s from: '%s'\n"),
1737                       $prefix, $what, $address, $cmd) unless $quiet;
1738                }
1739        close $fh
1740            or die sprintf(__("(%s) failed to close pipe to '%s'"), $prefix, $cmd);
1741        return @addresses;
1742}
1743
1744cleanup_compose_files();
1745
1746sub cleanup_compose_files {
1747        unlink($compose_filename, $compose_filename . ".final") if $compose;
1748}
1749
1750$smtp->quit if $smtp;
1751
1752sub apply_transfer_encoding {
1753        my $message = shift;
1754        my $from = shift;
1755        my $to = shift;
1756
1757        return $message if ($from eq $to and $from ne '7bit');
1758
1759        require MIME::QuotedPrint;
1760        require MIME::Base64;
1761
1762        $message = MIME::QuotedPrint::decode($message)
1763                if ($from eq 'quoted-printable');
1764        $message = MIME::Base64::decode($message)
1765                if ($from eq 'base64');
1766
1767        die __("cannot send message as 7bit")
1768                if ($to eq '7bit' and $message =~ /[^[:ascii:]]/);
1769        return $message
1770                if ($to eq '7bit' or $to eq '8bit');
1771        return MIME::QuotedPrint::encode($message, "\n", 0)
1772                if ($to eq 'quoted-printable');
1773        return MIME::Base64::encode($message, "\n")
1774                if ($to eq 'base64');
1775        die __("invalid transfer encoding");
1776}
1777
1778sub unique_email_list {
1779        my %seen;
1780        my @emails;
1781
1782        foreach my $entry (@_) {
1783                my $clean = extract_valid_address_or_die($entry);
1784                $seen{$clean} ||= 0;
1785                next if $seen{$clean}++;
1786                push @emails, $entry;
1787        }
1788        return @emails;
1789}
1790
1791sub validate_patch {
1792        my $fn = shift;
1793
1794        if ($repo) {
1795                my $validate_hook = catfile(catdir($repo->repo_path(), 'hooks'),
1796                                            'sendemail-validate');
1797                my $hook_error;
1798                if (-x $validate_hook) {
1799                        my $target = abs_path($fn);
1800                        # The hook needs a correct cwd and GIT_DIR.
1801                        my $cwd_save = cwd();
1802                        chdir($repo->wc_path() or $repo->repo_path())
1803                                or die("chdir: $!");
1804                        local $ENV{"GIT_DIR"} = $repo->repo_path();
1805                        $hook_error = "rejected by sendemail-validate hook"
1806                                if system($validate_hook, $target);
1807                        chdir($cwd_save) or die("chdir: $!");
1808                }
1809                return $hook_error if $hook_error;
1810        }
1811
1812        open(my $fh, '<', $fn)
1813                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1814        while (my $line = <$fh>) {
1815                if (length($line) > 998) {
1816                        return sprintf(__("%s: patch contains a line longer than 998 characters"), $.);
1817                }
1818        }
1819        return;
1820}
1821
1822sub handle_backup {
1823        my ($last, $lastlen, $file, $known_suffix) = @_;
1824        my ($suffix, $skip);
1825
1826        $skip = 0;
1827        if (defined $last &&
1828            ($lastlen < length($file)) &&
1829            (substr($file, 0, $lastlen) eq $last) &&
1830            ($suffix = substr($file, $lastlen)) !~ /^[a-z0-9]/i) {
1831                if (defined $known_suffix && $suffix eq $known_suffix) {
1832                        printf(__("Skipping %s with backup suffix '%s'.\n"), $file, $known_suffix);
1833                        $skip = 1;
1834                } else {
1835                        # TRANSLATORS: please keep "[y|N]" as is.
1836                        my $answer = ask(sprintf(__("Do you really want to send %s? [y|N]: "), $file),
1837                                         valid_re => qr/^(?:y|n)/i,
1838                                         default => 'n');
1839                        $skip = ($answer ne 'y');
1840                        if ($skip) {
1841                                $known_suffix = $suffix;
1842                        }
1843                }
1844        }
1845        return ($skip, $known_suffix);
1846}
1847
1848sub handle_backup_files {
1849        my @file = @_;
1850        my ($last, $lastlen, $known_suffix, $skip, @result);
1851        for my $file (@file) {
1852                ($skip, $known_suffix) = handle_backup($last, $lastlen,
1853                                                       $file, $known_suffix);
1854                push @result, $file unless $skip;
1855                $last = $file;
1856                $lastlen = length($file);
1857        }
1858        return @result;
1859}
1860
1861sub file_has_nonascii {
1862        my $fn = shift;
1863        open(my $fh, '<', $fn)
1864                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1865        while (my $line = <$fh>) {
1866                return 1 if $line =~ /[^[:ascii:]]/;
1867        }
1868        return 0;
1869}
1870
1871sub body_or_subject_has_nonascii {
1872        my $fn = shift;
1873        open(my $fh, '<', $fn)
1874                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1875        while (my $line = <$fh>) {
1876                last if $line =~ /^$/;
1877                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1878        }
1879        while (my $line = <$fh>) {
1880                return 1 if $line =~ /[^[:ascii:]]/;
1881        }
1882        return 0;
1883}