git-send-email.perlon commit commit-graph: create git-commit-graph builtin (4ce58ee)
   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;
  34
  35Getopt::Long::Configure qw/ pass_through /;
  36
  37package FakeTerm;
  38sub new {
  39        my ($class, $reason) = @_;
  40        return bless \$reason, shift;
  41}
  42sub readline {
  43        my $self = shift;
  44        die "Cannot use readline on FakeTerm: $$self";
  45}
  46package main;
  47
  48
  49sub usage {
  50        print <<EOT;
  51git send-email [options] <file | directory | rev-list options >
  52git send-email --dump-aliases
  53
  54  Composing:
  55    --from                  <str>  * Email From:
  56    --[no-]to               <str>  * Email To:
  57    --[no-]cc               <str>  * Email Cc:
  58    --[no-]bcc              <str>  * Email Bcc:
  59    --subject               <str>  * Email "Subject:"
  60    --in-reply-to           <str>  * Email "In-Reply-To:"
  61    --[no-]xmailer                 * Add "X-Mailer:" header (default).
  62    --[no-]annotate                * Review each patch that will be sent in an editor.
  63    --compose                      * Open an editor for introduction.
  64    --compose-encoding      <str>  * Encoding to assume for introduction.
  65    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  66    --transfer-encoding     <str>  * Transfer encoding to use (quoted-printable, 8bit, base64)
  67
  68  Sending:
  69    --envelope-sender       <str>  * Email envelope sender.
  70    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  71                                     is optional. Default 'localhost'.
  72    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  73    --smtp-server-port      <int>  * Outgoing SMTP server port.
  74    --smtp-user             <str>  * Username for SMTP-AUTH.
  75    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  76    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  77    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  78    --smtp-ssl-cert-path    <str>  * Path to ca-certificates (either directory or file).
  79                                     Pass an empty string to disable certificate
  80                                     verification.
  81    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  82    --smtp-auth             <str>  * Space-separated list of allowed AUTH mechanisms.
  83                                     This setting forces to use one of the listed mechanisms.
  84    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  85
  86    --batch-size            <int>  * send max <int> message per connection.
  87    --relogin-delay         <int>  * delay <int> seconds between two successive login.
  88                                     This option can only be used with --batch-size
  89
  90  Automating:
  91    --identity              <str>  * Use the sendemail.<id> options.
  92    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  93    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  94    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  95    --[no-]cc-cover                * Email Cc: addresses in the cover letter.
  96    --[no-]to-cover                * Email To: addresses in the cover letter.
  97    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  98    --[no-]suppress-from           * Send to self. Default off.
  99    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
 100    --[no-]thread                  * Use In-Reply-To: field. Default on.
 101
 102  Administering:
 103    --confirm               <str>  * Confirm recipients before sending;
 104                                     auto, cc, compose, always, or never.
 105    --quiet                        * Output one line of info per email.
 106    --dry-run                      * Don't actually send the emails.
 107    --[no-]validate                * Perform patch sanity checks. Default on.
 108    --[no-]format-patch            * understand any non optional arguments as
 109                                     `git format-patch` ones.
 110    --force                        * Send even if safety checks would prevent it.
 111
 112  Information:
 113    --dump-aliases                 * Dump configured aliases and exit.
 114
 115EOT
 116        exit(1);
 117}
 118
 119# most mail servers generate the Date: header, but not all...
 120sub format_2822_time {
 121        my ($time) = @_;
 122        my @localtm = localtime($time);
 123        my @gmttm = gmtime($time);
 124        my $localmin = $localtm[1] + $localtm[2] * 60;
 125        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 126        if ($localtm[0] != $gmttm[0]) {
 127                die __("local zone differs from GMT by a non-minute interval\n");
 128        }
 129        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 130                $localmin += 1440;
 131        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 132                $localmin -= 1440;
 133        } elsif ($gmttm[6] != $localtm[6]) {
 134                die __("local time offset greater than or equal to 24 hours\n");
 135        }
 136        my $offset = $localmin - $gmtmin;
 137        my $offhour = $offset / 60;
 138        my $offmin = abs($offset % 60);
 139        if (abs($offhour) >= 24) {
 140                die __("local time offset greater than or equal to 24 hours\n");
 141        }
 142
 143        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 144                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 145                       $localtm[3],
 146                       qw(Jan Feb Mar Apr May Jun
 147                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 148                       $localtm[5]+1900,
 149                       $localtm[2],
 150                       $localtm[1],
 151                       $localtm[0],
 152                       ($offset >= 0) ? '+' : '-',
 153                       abs($offhour),
 154                       $offmin,
 155                       );
 156}
 157
 158my $have_email_valid = eval { require Email::Valid; 1 };
 159my $smtp;
 160my $auth;
 161my $num_sent = 0;
 162
 163# Regexes for RFC 2047 productions.
 164my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/;
 165my $re_encoded_text = qr/[^? \000-\037\177-\377]+/;
 166my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 167
 168# Variables we fill in automatically, or via prompting:
 169my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 170        $initial_reply_to,$initial_subject,@files,
 171        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 172
 173my $envelope_sender;
 174
 175# Example reply to:
 176#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 177
 178my $repo = eval { Git->repository() };
 179my @repo = $repo ? ($repo) : ();
 180my $term = eval {
 181        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 182                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 183                : new Term::ReadLine 'git-send-email';
 184};
 185if ($@) {
 186        $term = new FakeTerm "$@: going non-interactive";
 187}
 188
 189# Behavior modification variables
 190my ($quiet, $dry_run) = (0, 0);
 191my $format_patch;
 192my $compose_filename;
 193my $force = 0;
 194my $dump_aliases = 0;
 195
 196# Handle interactive edition of files.
 197my $multiedit;
 198my $editor;
 199
 200sub do_edit {
 201        if (!defined($editor)) {
 202                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 203        }
 204        if (defined($multiedit) && !$multiedit) {
 205                map {
 206                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 207                        if (($? & 127) || ($? >> 8)) {
 208                                die(__("the editor exited uncleanly, aborting everything"));
 209                        }
 210                } @_;
 211        } else {
 212                system('sh', '-c', $editor.' "$@"', $editor, @_);
 213                if (($? & 127) || ($? >> 8)) {
 214                        die(__("the editor exited uncleanly, aborting everything"));
 215                }
 216        }
 217}
 218
 219# Variables with corresponding config settings
 220my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 221my ($cover_cc, $cover_to);
 222my ($to_cmd, $cc_cmd);
 223my ($smtp_server, $smtp_server_port, @smtp_server_options);
 224my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 225my ($batch_size, $relogin_delay);
 226my ($identity, $aliasfiletype, @alias_files, $smtp_domain, $smtp_auth);
 227my ($validate, $confirm);
 228my (@suppress_cc);
 229my ($auto_8bit_encoding);
 230my ($compose_encoding);
 231my ($target_xfer_encoding);
 232
 233my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 234
 235my %config_bool_settings = (
 236    "thread" => [\$thread, 1],
 237    "chainreplyto" => [\$chain_reply_to, 0],
 238    "suppressfrom" => [\$suppress_from, undef],
 239    "signedoffbycc" => [\$signed_off_by_cc, undef],
 240    "cccover" => [\$cover_cc, undef],
 241    "tocover" => [\$cover_to, undef],
 242    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 243    "validate" => [\$validate, 1],
 244    "multiedit" => [\$multiedit, undef],
 245    "annotate" => [\$annotate, undef],
 246    "xmailer" => [\$use_xmailer, 1]
 247);
 248
 249my %config_settings = (
 250    "smtpserver" => \$smtp_server,
 251    "smtpserverport" => \$smtp_server_port,
 252    "smtpserveroption" => \@smtp_server_options,
 253    "smtpuser" => \$smtp_authuser,
 254    "smtppass" => \$smtp_authpass,
 255    "smtpdomain" => \$smtp_domain,
 256    "smtpauth" => \$smtp_auth,
 257    "smtpbatchsize" => \$batch_size,
 258    "smtprelogindelay" => \$relogin_delay,
 259    "to" => \@initial_to,
 260    "tocmd" => \$to_cmd,
 261    "cc" => \@initial_cc,
 262    "cccmd" => \$cc_cmd,
 263    "aliasfiletype" => \$aliasfiletype,
 264    "bcc" => \@bcclist,
 265    "suppresscc" => \@suppress_cc,
 266    "envelopesender" => \$envelope_sender,
 267    "confirm"   => \$confirm,
 268    "from" => \$sender,
 269    "assume8bitencoding" => \$auto_8bit_encoding,
 270    "composeencoding" => \$compose_encoding,
 271    "transferencoding" => \$target_xfer_encoding,
 272);
 273
 274my %config_path_settings = (
 275    "aliasesfile" => \@alias_files,
 276    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 277);
 278
 279# Handle Uncouth Termination
 280sub signal_handler {
 281
 282        # Make text normal
 283        print color("reset"), "\n";
 284
 285        # SMTP password masked
 286        system "stty echo";
 287
 288        # tmp files from --compose
 289        if (defined $compose_filename) {
 290                if (-e $compose_filename) {
 291                        printf __("'%s' contains an intermediate version ".
 292                                  "of the email you were composing.\n"),
 293                                  $compose_filename;
 294                }
 295                if (-e ($compose_filename . ".final")) {
 296                        printf __("'%s.final' contains the composed email.\n"),
 297                                  $compose_filename;
 298                }
 299        }
 300
 301        exit;
 302};
 303
 304$SIG{TERM} = \&signal_handler;
 305$SIG{INT}  = \&signal_handler;
 306
 307# Begin by accumulating all the variables (defined above), that we will end up
 308# needing, first, from the command line:
 309
 310my $help;
 311my $rc = GetOptions("h" => \$help,
 312                    "dump-aliases" => \$dump_aliases);
 313usage() unless $rc;
 314die __("--dump-aliases incompatible with other options\n")
 315    if !$help and $dump_aliases and @ARGV;
 316$rc = GetOptions(
 317                    "sender|from=s" => \$sender,
 318                    "in-reply-to=s" => \$initial_reply_to,
 319                    "subject=s" => \$initial_subject,
 320                    "to=s" => \@initial_to,
 321                    "to-cmd=s" => \$to_cmd,
 322                    "no-to" => \$no_to,
 323                    "cc=s" => \@initial_cc,
 324                    "no-cc" => \$no_cc,
 325                    "bcc=s" => \@bcclist,
 326                    "no-bcc" => \$no_bcc,
 327                    "chain-reply-to!" => \$chain_reply_to,
 328                    "no-chain-reply-to" => sub {$chain_reply_to = 0},
 329                    "smtp-server=s" => \$smtp_server,
 330                    "smtp-server-option=s" => \@smtp_server_options,
 331                    "smtp-server-port=s" => \$smtp_server_port,
 332                    "smtp-user=s" => \$smtp_authuser,
 333                    "smtp-pass:s" => \$smtp_authpass,
 334                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 335                    "smtp-encryption=s" => \$smtp_encryption,
 336                    "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path,
 337                    "smtp-debug:i" => \$debug_net_smtp,
 338                    "smtp-domain:s" => \$smtp_domain,
 339                    "smtp-auth=s" => \$smtp_auth,
 340                    "identity=s" => \$identity,
 341                    "annotate!" => \$annotate,
 342                    "no-annotate" => sub {$annotate = 0},
 343                    "compose" => \$compose,
 344                    "quiet" => \$quiet,
 345                    "cc-cmd=s" => \$cc_cmd,
 346                    "suppress-from!" => \$suppress_from,
 347                    "no-suppress-from" => sub {$suppress_from = 0},
 348                    "suppress-cc=s" => \@suppress_cc,
 349                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 350                    "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0},
 351                    "cc-cover|cc-cover!" => \$cover_cc,
 352                    "no-cc-cover" => sub {$cover_cc = 0},
 353                    "to-cover|to-cover!" => \$cover_to,
 354                    "no-to-cover" => sub {$cover_to = 0},
 355                    "confirm=s" => \$confirm,
 356                    "dry-run" => \$dry_run,
 357                    "envelope-sender=s" => \$envelope_sender,
 358                    "thread!" => \$thread,
 359                    "no-thread" => sub {$thread = 0},
 360                    "validate!" => \$validate,
 361                    "no-validate" => sub {$validate = 0},
 362                    "transfer-encoding=s" => \$target_xfer_encoding,
 363                    "format-patch!" => \$format_patch,
 364                    "no-format-patch" => sub {$format_patch = 0},
 365                    "8bit-encoding=s" => \$auto_8bit_encoding,
 366                    "compose-encoding=s" => \$compose_encoding,
 367                    "force" => \$force,
 368                    "xmailer!" => \$use_xmailer,
 369                    "no-xmailer" => sub {$use_xmailer = 0},
 370                    "batch-size=i" => \$batch_size,
 371                    "relogin-delay=i" => \$relogin_delay,
 372         );
 373
 374usage() if $help;
 375unless ($rc) {
 376    usage();
 377}
 378
 379die __("Cannot run git format-patch from outside a repository\n")
 380        if $format_patch and not $repo;
 381
 382# Now, let's fill any that aren't set in with defaults:
 383
 384sub read_config {
 385        my ($prefix) = @_;
 386
 387        foreach my $setting (keys %config_bool_settings) {
 388                my $target = $config_bool_settings{$setting}->[0];
 389                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 390        }
 391
 392        foreach my $setting (keys %config_path_settings) {
 393                my $target = $config_path_settings{$setting};
 394                if (ref($target) eq "ARRAY") {
 395                        unless (@$target) {
 396                                my @values = Git::config_path(@repo, "$prefix.$setting");
 397                                @$target = @values if (@values && defined $values[0]);
 398                        }
 399                }
 400                else {
 401                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 402                }
 403        }
 404
 405        foreach my $setting (keys %config_settings) {
 406                my $target = $config_settings{$setting};
 407                next if $setting eq "to" and defined $no_to;
 408                next if $setting eq "cc" and defined $no_cc;
 409                next if $setting eq "bcc" and defined $no_bcc;
 410                if (ref($target) eq "ARRAY") {
 411                        unless (@$target) {
 412                                my @values = Git::config(@repo, "$prefix.$setting");
 413                                @$target = @values if (@values && defined $values[0]);
 414                        }
 415                }
 416                else {
 417                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 418                }
 419        }
 420
 421        if (!defined $smtp_encryption) {
 422                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 423                if (defined $enc) {
 424                        $smtp_encryption = $enc;
 425                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 426                        $smtp_encryption = 'ssl';
 427                }
 428        }
 429}
 430
 431# read configuration from [sendemail "$identity"], fall back on [sendemail]
 432$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 433read_config("sendemail.$identity") if (defined $identity);
 434read_config("sendemail");
 435
 436# fall back on builtin bool defaults
 437foreach my $setting (values %config_bool_settings) {
 438        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 439}
 440
 441# 'default' encryption is none -- this only prevents a warning
 442$smtp_encryption = '' unless (defined $smtp_encryption);
 443
 444# Set CC suppressions
 445my(%suppress_cc);
 446if (@suppress_cc) {
 447        foreach my $entry (@suppress_cc) {
 448                die sprintf(__("Unknown --suppress-cc field: '%s'\n"), $entry)
 449                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 450                $suppress_cc{$entry} = 1;
 451        }
 452}
 453
 454if ($suppress_cc{'all'}) {
 455        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 456                $suppress_cc{$entry} = 1;
 457        }
 458        delete $suppress_cc{'all'};
 459}
 460
 461# If explicit old-style ones are specified, they trump --suppress-cc.
 462$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 463$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 464
 465if ($suppress_cc{'body'}) {
 466        foreach my $entry (qw (sob bodycc)) {
 467                $suppress_cc{$entry} = 1;
 468        }
 469        delete $suppress_cc{'body'};
 470}
 471
 472# Set confirm's default value
 473my $confirm_unconfigured = !defined $confirm;
 474if ($confirm_unconfigured) {
 475        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 476};
 477die sprintf(__("Unknown --confirm setting: '%s'\n"), $confirm)
 478        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 479
 480# Debugging, print out the suppressions.
 481if (0) {
 482        print "suppressions:\n";
 483        foreach my $entry (keys %suppress_cc) {
 484                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 485        }
 486}
 487
 488my ($repoauthor, $repocommitter);
 489($repoauthor) = Git::ident_person(@repo, 'author');
 490($repocommitter) = Git::ident_person(@repo, 'committer');
 491
 492sub parse_address_line {
 493        return map { $_->format } Mail::Address->parse($_[0]);
 494}
 495
 496sub split_addrs {
 497        return quotewords('\s*,\s*', 1, @_);
 498}
 499
 500my %aliases;
 501
 502sub parse_sendmail_alias {
 503        local $_ = shift;
 504        if (/"/) {
 505                printf STDERR __("warning: sendmail alias with quotes is not supported: %s\n"), $_;
 506        } elsif (/:include:/) {
 507                printf STDERR __("warning: `:include:` not supported: %s\n"), $_;
 508        } elsif (/[\/|]/) {
 509                printf STDERR __("warning: `/file` or `|pipe` redirection not supported: %s\n"), $_;
 510        } elsif (/^(\S+?)\s*:\s*(.+)$/) {
 511                my ($alias, $addr) = ($1, $2);
 512                $aliases{$alias} = [ split_addrs($addr) ];
 513        } else {
 514                printf STDERR __("warning: sendmail line is not recognized: %s\n"), $_;
 515        }
 516}
 517
 518sub parse_sendmail_aliases {
 519        my $fh = shift;
 520        my $s = '';
 521        while (<$fh>) {
 522                chomp;
 523                next if /^\s*$/ || /^\s*#/;
 524                $s .= $_, next if $s =~ s/\\$// || s/^\s+//;
 525                parse_sendmail_alias($s) if $s;
 526                $s = $_;
 527        }
 528        $s =~ s/\\$//; # silently tolerate stray '\' on last line
 529        parse_sendmail_alias($s) if $s;
 530}
 531
 532my %parse_alias = (
 533        # multiline formats can be supported in the future
 534        mutt => sub { my $fh = shift; while (<$fh>) {
 535                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 536                        my ($alias, $addr) = ($1, $2);
 537                        $addr =~ s/#.*$//; # mutt allows # comments
 538                        # commas delimit multiple addresses
 539                        my @addr = split_addrs($addr);
 540
 541                        # quotes may be escaped in the file,
 542                        # unescape them so we do not double-escape them later.
 543                        s/\\"/"/g foreach @addr;
 544                        $aliases{$alias} = \@addr
 545                }}},
 546        mailrc => sub { my $fh = shift; while (<$fh>) {
 547                if (/^alias\s+(\S+)\s+(.*?)\s*$/) {
 548                        # spaces delimit multiple addresses
 549                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 550                }}},
 551        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 552                for (my $x = ''; defined($x); $x = $_) {
 553                        chomp $x;
 554                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 555                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 556                        $aliases{$1} = [ split_addrs($2) ];
 557                }},
 558        elm => sub  { my $fh = shift;
 559                      while (<$fh>) {
 560                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 561                              my ($alias, $addr) = ($1, $2);
 562                               $aliases{$alias} = [ split_addrs($addr) ];
 563                          }
 564                      } },
 565        sendmail => \&parse_sendmail_aliases,
 566        gnus => sub { my $fh = shift; while (<$fh>) {
 567                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 568                        $aliases{$1} = [ $2 ];
 569                }}}
 570);
 571
 572if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 573        foreach my $file (@alias_files) {
 574                open my $fh, '<', $file or die "opening $file: $!\n";
 575                $parse_alias{$aliasfiletype}->($fh);
 576                close $fh;
 577        }
 578}
 579
 580if ($dump_aliases) {
 581    print "$_\n" for (sort keys %aliases);
 582    exit(0);
 583}
 584
 585# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 586# $f is a revision list specification to be passed to format-patch.
 587sub is_format_patch_arg {
 588        return unless $repo;
 589        my $f = shift;
 590        try {
 591                $repo->command('rev-parse', '--verify', '--quiet', $f);
 592                if (defined($format_patch)) {
 593                        return $format_patch;
 594                }
 595                die sprintf(__ <<EOF, $f, $f);
 596File '%s' exists but it could also be the range of commits
 597to produce patches for.  Please disambiguate by...
 598
 599    * Saying "./%s" if you mean a file; or
 600    * Giving --format-patch option if you mean a range.
 601EOF
 602        } catch Git::Error::Command with {
 603                # Not a valid revision.  Treat it as a filename.
 604                return 0;
 605        }
 606}
 607
 608# Now that all the defaults are set, process the rest of the command line
 609# arguments and collect up the files that need to be processed.
 610my @rev_list_opts;
 611while (defined(my $f = shift @ARGV)) {
 612        if ($f eq "--") {
 613                push @rev_list_opts, "--", @ARGV;
 614                @ARGV = ();
 615        } elsif (-d $f and !is_format_patch_arg($f)) {
 616                opendir my $dh, $f
 617                        or die sprintf(__("Failed to opendir %s: %s"), $f, $!);
 618
 619                push @files, grep { -f $_ } map { catfile($f, $_) }
 620                                sort readdir $dh;
 621                closedir $dh;
 622        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 623                push @files, $f;
 624        } else {
 625                push @rev_list_opts, $f;
 626        }
 627}
 628
 629if (@rev_list_opts) {
 630        die __("Cannot run git format-patch from outside a repository\n")
 631                unless $repo;
 632        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 633}
 634
 635@files = handle_backup_files(@files);
 636
 637if ($validate) {
 638        foreach my $f (@files) {
 639                unless (-p $f) {
 640                        my $error = validate_patch($f);
 641                        $error and die sprintf(__("fatal: %s: %s\nwarning: no patches were sent\n"),
 642                                                  $f, $error);
 643                }
 644        }
 645}
 646
 647if (@files) {
 648        unless ($quiet) {
 649                print $_,"\n" for (@files);
 650        }
 651} else {
 652        print STDERR __("\nNo patch files specified!\n\n");
 653        usage();
 654}
 655
 656sub get_patch_subject {
 657        my $fn = shift;
 658        open (my $fh, '<', $fn);
 659        while (my $line = <$fh>) {
 660                next unless ($line =~ /^Subject: (.*)$/);
 661                close $fh;
 662                return "GIT: $1\n";
 663        }
 664        close $fh;
 665        die sprintf(__("No subject line in %s?"), $fn);
 666}
 667
 668if ($compose) {
 669        # Note that this does not need to be secure, but we will make a small
 670        # effort to have it be unique
 671        $compose_filename = ($repo ?
 672                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 673                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 674        open my $c, ">", $compose_filename
 675                or die sprintf(__("Failed to open for writing %s: %s"), $compose_filename, $!);
 676
 677
 678        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 679        my $tpl_subject = $initial_subject || '';
 680        my $tpl_reply_to = $initial_reply_to || '';
 681
 682        print $c <<EOT1, Git::prefix_lines("GIT: ", __ <<EOT2), <<EOT3;
 683From $tpl_sender # This line is ignored.
 684EOT1
 685Lines beginning in "GIT:" will be removed.
 686Consider including an overall diffstat or table of contents
 687for the patch you are writing.
 688
 689Clear the body content if you don't wish to send a summary.
 690EOT2
 691From: $tpl_sender
 692Subject: $tpl_subject
 693In-Reply-To: $tpl_reply_to
 694
 695EOT3
 696        for my $f (@files) {
 697                print $c get_patch_subject($f);
 698        }
 699        close $c;
 700
 701        if ($annotate) {
 702                do_edit($compose_filename, @files);
 703        } else {
 704                do_edit($compose_filename);
 705        }
 706
 707        open my $c2, ">", $compose_filename . ".final"
 708                or die sprintf(__("Failed to open %s.final: %s"), $compose_filename, $!);
 709
 710        open $c, "<", $compose_filename
 711                or die sprintf(__("Failed to open %s: %s"), $compose_filename, $!);
 712
 713        my $need_8bit_cte = file_has_nonascii($compose_filename);
 714        my $in_body = 0;
 715        my $summary_empty = 1;
 716        if (!defined $compose_encoding) {
 717                $compose_encoding = "UTF-8";
 718        }
 719        while(<$c>) {
 720                next if m/^GIT:/;
 721                if ($in_body) {
 722                        $summary_empty = 0 unless (/^\n$/);
 723                } elsif (/^\n$/) {
 724                        $in_body = 1;
 725                        if ($need_8bit_cte) {
 726                                print $c2 "MIME-Version: 1.0\n",
 727                                         "Content-Type: text/plain; ",
 728                                           "charset=$compose_encoding\n",
 729                                         "Content-Transfer-Encoding: 8bit\n";
 730                        }
 731                } elsif (/^MIME-Version:/i) {
 732                        $need_8bit_cte = 0;
 733                } elsif (/^Subject:\s*(.+)\s*$/i) {
 734                        $initial_subject = $1;
 735                        my $subject = $initial_subject;
 736                        $_ = "Subject: " .
 737                                quote_subject($subject, $compose_encoding) .
 738                                "\n";
 739                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 740                        $initial_reply_to = $1;
 741                        next;
 742                } elsif (/^From:\s*(.+)\s*$/i) {
 743                        $sender = $1;
 744                        next;
 745                } elsif (/^(?:To|Cc|Bcc):/i) {
 746                        print __("To/Cc/Bcc fields are not interpreted yet, they have been ignored\n");
 747                        next;
 748                }
 749                print $c2 $_;
 750        }
 751        close $c;
 752        close $c2;
 753
 754        if ($summary_empty) {
 755                print __("Summary email is empty, skipping it\n");
 756                $compose = -1;
 757        }
 758} elsif ($annotate) {
 759        do_edit(@files);
 760}
 761
 762sub ask {
 763        my ($prompt, %arg) = @_;
 764        my $valid_re = $arg{valid_re};
 765        my $default = $arg{default};
 766        my $confirm_only = $arg{confirm_only};
 767        my $resp;
 768        my $i = 0;
 769        return defined $default ? $default : undef
 770                unless defined $term->IN and defined fileno($term->IN) and
 771                       defined $term->OUT and defined fileno($term->OUT);
 772        while ($i++ < 10) {
 773                $resp = $term->readline($prompt);
 774                if (!defined $resp) { # EOF
 775                        print "\n";
 776                        return defined $default ? $default : undef;
 777                }
 778                if ($resp eq '' and defined $default) {
 779                        return $default;
 780                }
 781                if (!defined $valid_re or $resp =~ /$valid_re/) {
 782                        return $resp;
 783                }
 784                if ($confirm_only) {
 785                        my $yesno = $term->readline(
 786                                # TRANSLATORS: please keep [y/N] as is.
 787                                sprintf(__("Are you sure you want to use <%s> [y/N]? "), $resp));
 788                        if (defined $yesno && $yesno =~ /y/i) {
 789                                return $resp;
 790                        }
 791                }
 792        }
 793        return;
 794}
 795
 796my %broken_encoding;
 797
 798sub file_declares_8bit_cte {
 799        my $fn = shift;
 800        open (my $fh, '<', $fn);
 801        while (my $line = <$fh>) {
 802                last if ($line =~ /^$/);
 803                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 804        }
 805        close $fh;
 806        return 0;
 807}
 808
 809foreach my $f (@files) {
 810        next unless (body_or_subject_has_nonascii($f)
 811                     && !file_declares_8bit_cte($f));
 812        $broken_encoding{$f} = 1;
 813}
 814
 815if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 816        print __("The following files are 8bit, but do not declare " .
 817                 "a Content-Transfer-Encoding.\n");
 818        foreach my $f (sort keys %broken_encoding) {
 819                print "    $f\n";
 820        }
 821        $auto_8bit_encoding = ask(__("Which 8bit encoding should I declare [UTF-8]? "),
 822                                  valid_re => qr/.{4}/, confirm_only => 1,
 823                                  default => "UTF-8");
 824}
 825
 826if (!$force) {
 827        for my $f (@files) {
 828                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 829                        die sprintf(__("Refusing to send because the patch\n\t%s\n"
 830                                . "has the template subject '*** SUBJECT HERE ***'. "
 831                                . "Pass --force if you really want to send.\n"), $f);
 832                }
 833        }
 834}
 835
 836if (defined $sender) {
 837        $sender =~ s/^\s+|\s+$//g;
 838        ($sender) = expand_aliases($sender);
 839} else {
 840        $sender = $repoauthor || $repocommitter || '';
 841}
 842
 843# $sender could be an already sanitized address
 844# (e.g. sendemail.from could be manually sanitized by user).
 845# But it's a no-op to run sanitize_address on an already sanitized address.
 846$sender = sanitize_address($sender);
 847
 848my $to_whom = __("To whom should the emails be sent (if anyone)?");
 849my $prompting = 0;
 850if (!@initial_to && !defined $to_cmd) {
 851        my $to = ask("$to_whom ",
 852                     default => "",
 853                     valid_re => qr/\@.*\./, confirm_only => 1);
 854        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 855        $prompting++;
 856}
 857
 858sub expand_aliases {
 859        return map { expand_one_alias($_) } @_;
 860}
 861
 862my %EXPANDED_ALIASES;
 863sub expand_one_alias {
 864        my $alias = shift;
 865        if ($EXPANDED_ALIASES{$alias}) {
 866                die sprintf(__("fatal: alias '%s' expands to itself\n"), $alias);
 867        }
 868        local $EXPANDED_ALIASES{$alias} = 1;
 869        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 870}
 871
 872@initial_to = process_address_list(@initial_to);
 873@initial_cc = process_address_list(@initial_cc);
 874@bcclist = process_address_list(@bcclist);
 875
 876if ($thread && !defined $initial_reply_to && $prompting) {
 877        $initial_reply_to = ask(
 878                __("Message-ID to be used as In-Reply-To for the first email (if any)? "),
 879                default => "",
 880                valid_re => qr/\@.*\./, confirm_only => 1);
 881}
 882if (defined $initial_reply_to) {
 883        $initial_reply_to =~ s/^\s*<?//;
 884        $initial_reply_to =~ s/>?\s*$//;
 885        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 886}
 887
 888if (!defined $smtp_server) {
 889        my @sendmail_paths = qw( /usr/sbin/sendmail /usr/lib/sendmail );
 890        push @sendmail_paths, map {"$_/sendmail"} split /:/, $ENV{PATH};
 891        foreach (@sendmail_paths) {
 892                if (-x $_) {
 893                        $smtp_server = $_;
 894                        last;
 895                }
 896        }
 897        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 898}
 899
 900if ($compose && $compose > 0) {
 901        @files = ($compose_filename . ".final", @files);
 902}
 903
 904# Variables we set as part of the loop over files
 905our ($message_id, %mail, $subject, $reply_to, $references, $message,
 906        $needs_confirm, $message_num, $ask_default);
 907
 908sub extract_valid_address {
 909        my $address = shift;
 910        my $local_part_regexp = qr/[^<>"\s@]+/;
 911        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 912
 913        # check for a local address:
 914        return $address if ($address =~ /^($local_part_regexp)$/);
 915
 916        $address =~ s/^\s*<(.*)>\s*$/$1/;
 917        if ($have_email_valid) {
 918                return scalar Email::Valid->address($address);
 919        }
 920
 921        # less robust/correct than the monster regexp in Email::Valid,
 922        # but still does a 99% job, and one less dependency
 923        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 924        return;
 925}
 926
 927sub extract_valid_address_or_die {
 928        my $address = shift;
 929        $address = extract_valid_address($address);
 930        die sprintf(__("error: unable to extract a valid address from: %s\n"), $address)
 931                if !$address;
 932        return $address;
 933}
 934
 935sub validate_address {
 936        my $address = shift;
 937        while (!extract_valid_address($address)) {
 938                printf STDERR __("error: unable to extract a valid address from: %s\n"), $address;
 939                # TRANSLATORS: Make sure to include [q] [d] [e] in your
 940                # translation. The program will only accept English input
 941                # at this point.
 942                $_ = ask(__("What to do with this address? ([q]uit|[d]rop|[e]dit): "),
 943                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 944                        default => 'q');
 945                if (/^d/i) {
 946                        return undef;
 947                } elsif (/^q/i) {
 948                        cleanup_compose_files();
 949                        exit(0);
 950                }
 951                $address = ask("$to_whom ",
 952                        default => "",
 953                        valid_re => qr/\@.*\./, confirm_only => 1);
 954        }
 955        return $address;
 956}
 957
 958sub validate_address_list {
 959        return (grep { defined $_ }
 960                map { validate_address($_) } @_);
 961}
 962
 963# Usually don't need to change anything below here.
 964
 965# we make a "fake" message id by taking the current number
 966# of seconds since the beginning of Unix time and tacking on
 967# a random number to the end, in case we are called quicker than
 968# 1 second since the last time we were called.
 969
 970# We'll setup a template for the message id, using the "from" address:
 971
 972my ($message_id_stamp, $message_id_serial);
 973sub make_message_id {
 974        my $uniq;
 975        if (!defined $message_id_stamp) {
 976                $message_id_stamp = strftime("%Y%m%d%H%M%S.$$", gmtime(time));
 977                $message_id_serial = 0;
 978        }
 979        $message_id_serial++;
 980        $uniq = "$message_id_stamp-$message_id_serial";
 981
 982        my $du_part;
 983        for ($sender, $repocommitter, $repoauthor) {
 984                $du_part = extract_valid_address(sanitize_address($_));
 985                last if (defined $du_part and $du_part ne '');
 986        }
 987        if (not defined $du_part or $du_part eq '') {
 988                require Sys::Hostname;
 989                $du_part = 'user@' . Sys::Hostname::hostname();
 990        }
 991        my $message_id_template = "<%s-%s>";
 992        $message_id = sprintf($message_id_template, $uniq, $du_part);
 993        #print "new message id = $message_id\n"; # Was useful for debugging
 994}
 995
 996
 997
 998$time = time - scalar $#files;
 999
1000sub unquote_rfc2047 {
1001        local ($_) = @_;
1002        my $charset;
1003        my $sep = qr/[ \t]+/;
1004        s{$re_encoded_word(?:$sep$re_encoded_word)*}{
1005                my @words = split $sep, $&;
1006                foreach (@words) {
1007                        m/$re_encoded_word/;
1008                        $charset = $1;
1009                        my $encoding = $2;
1010                        my $text = $3;
1011                        if ($encoding eq 'q' || $encoding eq 'Q') {
1012                                $_ = $text;
1013                                s/_/ /g;
1014                                s/=([0-9A-F]{2})/chr(hex($1))/egi;
1015                        } else {
1016                                # other encodings not supported yet
1017                        }
1018                }
1019                join '', @words;
1020        }eg;
1021        return wantarray ? ($_, $charset) : $_;
1022}
1023
1024sub quote_rfc2047 {
1025        local $_ = shift;
1026        my $encoding = shift || 'UTF-8';
1027        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
1028        s/(.*)/=\?$encoding\?q\?$1\?=/;
1029        return $_;
1030}
1031
1032sub is_rfc2047_quoted {
1033        my $s = shift;
1034        length($s) <= 75 &&
1035        $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o;
1036}
1037
1038sub subject_needs_rfc2047_quoting {
1039        my $s = shift;
1040
1041        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
1042}
1043
1044sub quote_subject {
1045        local $subject = shift;
1046        my $encoding = shift || 'UTF-8';
1047
1048        if (subject_needs_rfc2047_quoting($subject)) {
1049                return quote_rfc2047($subject, $encoding);
1050        }
1051        return $subject;
1052}
1053
1054# use the simplest quoting being able to handle the recipient
1055sub sanitize_address {
1056        my ($recipient) = @_;
1057
1058        # remove garbage after email address
1059        $recipient =~ s/(.*>).*$/$1/;
1060
1061        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
1062
1063        if (not $recipient_name) {
1064                return $recipient;
1065        }
1066
1067        # if recipient_name is already quoted, do nothing
1068        if (is_rfc2047_quoted($recipient_name)) {
1069                return $recipient;
1070        }
1071
1072        # remove non-escaped quotes
1073        $recipient_name =~ s/(^|[^\\])"/$1/g;
1074
1075        # rfc2047 is needed if a non-ascii char is included
1076        if ($recipient_name =~ /[^[:ascii:]]/) {
1077                $recipient_name = quote_rfc2047($recipient_name);
1078        }
1079
1080        # double quotes are needed if specials or CTLs are included
1081        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
1082                $recipient_name =~ s/([\\\r])/\\$1/g;
1083                $recipient_name = qq["$recipient_name"];
1084        }
1085
1086        return "$recipient_name $recipient_addr";
1087
1088}
1089
1090sub strip_garbage_one_address {
1091        my ($addr) = @_;
1092        chomp $addr;
1093        if ($addr =~ /^(("[^"]*"|[^"<]*)? *<[^>]*>).*/) {
1094                # "Foo Bar" <foobar@example.com> [possibly garbage here]
1095                # Foo Bar <foobar@example.com> [possibly garbage here]
1096                return $1;
1097        }
1098        if ($addr =~ /^(<[^>]*>).*/) {
1099                # <foo@example.com> [possibly garbage here]
1100                # if garbage contains other addresses, they are ignored.
1101                return $1;
1102        }
1103        if ($addr =~ /^([^"#,\s]*)/) {
1104                # address without quoting: remove anything after the address
1105                return $1;
1106        }
1107        return $addr;
1108}
1109
1110sub sanitize_address_list {
1111        return (map { sanitize_address($_) } @_);
1112}
1113
1114sub process_address_list {
1115        my @addr_list = map { parse_address_line($_) } @_;
1116        @addr_list = expand_aliases(@addr_list);
1117        @addr_list = sanitize_address_list(@addr_list);
1118        @addr_list = validate_address_list(@addr_list);
1119        return @addr_list;
1120}
1121
1122# Returns the local Fully Qualified Domain Name (FQDN) if available.
1123#
1124# Tightly configured MTAa require that a caller sends a real DNS
1125# domain name that corresponds the IP address in the HELO/EHLO
1126# handshake. This is used to verify the connection and prevent
1127# spammers from trying to hide their identity. If the DNS and IP don't
1128# match, the receiveing MTA may deny the connection.
1129#
1130# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1131#
1132# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1133# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1134#
1135# This maildomain*() code is based on ideas in Perl library Test::Reporter
1136# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1137
1138sub valid_fqdn {
1139        my $domain = shift;
1140        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1141}
1142
1143sub maildomain_net {
1144        my $maildomain;
1145
1146        if (eval { require Net::Domain; 1 }) {
1147                my $domain = Net::Domain::domainname();
1148                $maildomain = $domain if valid_fqdn($domain);
1149        }
1150
1151        return $maildomain;
1152}
1153
1154sub maildomain_mta {
1155        my $maildomain;
1156
1157        if (eval { require Net::SMTP; 1 }) {
1158                for my $host (qw(mailhost localhost)) {
1159                        my $smtp = Net::SMTP->new($host);
1160                        if (defined $smtp) {
1161                                my $domain = $smtp->domain;
1162                                $smtp->quit;
1163
1164                                $maildomain = $domain if valid_fqdn($domain);
1165
1166                                last if $maildomain;
1167                        }
1168                }
1169        }
1170
1171        return $maildomain;
1172}
1173
1174sub maildomain {
1175        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1176}
1177
1178sub smtp_host_string {
1179        if (defined $smtp_server_port) {
1180                return "$smtp_server:$smtp_server_port";
1181        } else {
1182                return $smtp_server;
1183        }
1184}
1185
1186# Returns 1 if authentication succeeded or was not necessary
1187# (smtp_user was not specified), and 0 otherwise.
1188
1189sub smtp_auth_maybe {
1190        if (!defined $smtp_authuser || $auth) {
1191                return 1;
1192        }
1193
1194        # Workaround AUTH PLAIN/LOGIN interaction defect
1195        # with Authen::SASL::Cyrus
1196        eval {
1197                require Authen::SASL;
1198                Authen::SASL->import(qw(Perl));
1199        };
1200
1201        # Check mechanism naming as defined in:
1202        # https://tools.ietf.org/html/rfc4422#page-8
1203        if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
1204                die "invalid smtp auth: '${smtp_auth}'";
1205        }
1206
1207        # TODO: Authentication may fail not because credentials were
1208        # invalid but due to other reasons, in which we should not
1209        # reject credentials.
1210        $auth = Git::credential({
1211                'protocol' => 'smtp',
1212                'host' => smtp_host_string(),
1213                'username' => $smtp_authuser,
1214                # if there's no password, "git credential fill" will
1215                # give us one, otherwise it'll just pass this one.
1216                'password' => $smtp_authpass
1217        }, sub {
1218                my $cred = shift;
1219
1220                if ($smtp_auth) {
1221                        my $sasl = Authen::SASL->new(
1222                                mechanism => $smtp_auth,
1223                                callback => {
1224                                        user => $cred->{'username'},
1225                                        pass => $cred->{'password'},
1226                                        authname => $cred->{'username'},
1227                                }
1228                        );
1229
1230                        return !!$smtp->auth($sasl);
1231                }
1232
1233                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1234        });
1235
1236        return $auth;
1237}
1238
1239sub ssl_verify_params {
1240        eval {
1241                require IO::Socket::SSL;
1242                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1243        };
1244        if ($@) {
1245                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1246                return;
1247        }
1248
1249        if (!defined $smtp_ssl_cert_path) {
1250                # use the OpenSSL defaults
1251                return (SSL_verify_mode => SSL_VERIFY_PEER());
1252        }
1253
1254        if ($smtp_ssl_cert_path eq "") {
1255                return (SSL_verify_mode => SSL_VERIFY_NONE());
1256        } elsif (-d $smtp_ssl_cert_path) {
1257                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1258                        SSL_ca_path => $smtp_ssl_cert_path);
1259        } elsif (-f $smtp_ssl_cert_path) {
1260                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1261                        SSL_ca_file => $smtp_ssl_cert_path);
1262        } else {
1263                die sprintf(__("CA path \"%s\" does not exist"), $smtp_ssl_cert_path);
1264        }
1265}
1266
1267sub file_name_is_absolute {
1268        my ($path) = @_;
1269
1270        # msys does not grok DOS drive-prefixes
1271        if ($^O eq 'msys') {
1272                return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#)
1273        }
1274
1275        require File::Spec::Functions;
1276        return File::Spec::Functions::file_name_is_absolute($path);
1277}
1278
1279# Returns 1 if the message was sent, and 0 otherwise.
1280# In actuality, the whole program dies when there
1281# is an error sending a message.
1282
1283sub send_message {
1284        my @recipients = unique_email_list(@to);
1285        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1286                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1287                    }
1288               @cc);
1289        my $to = join (",\n\t", @recipients);
1290        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1291        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1292        my $date = format_2822_time($time++);
1293        my $gitversion = '@@GIT_VERSION@@';
1294        if ($gitversion =~ m/..GIT_VERSION../) {
1295            $gitversion = Git::version();
1296        }
1297
1298        my $cc = join(",\n\t", unique_email_list(@cc));
1299        my $ccline = "";
1300        if ($cc ne '') {
1301                $ccline = "\nCc: $cc";
1302        }
1303        make_message_id() unless defined($message_id);
1304
1305        my $header = "From: $sender
1306To: $to${ccline}
1307Subject: $subject
1308Date: $date
1309Message-Id: $message_id
1310";
1311        if ($use_xmailer) {
1312                $header .= "X-Mailer: git-send-email $gitversion\n";
1313        }
1314        if ($reply_to) {
1315
1316                $header .= "In-Reply-To: $reply_to\n";
1317                $header .= "References: $references\n";
1318        }
1319        if (@xh) {
1320                $header .= join("\n", @xh) . "\n";
1321        }
1322
1323        my @sendmail_parameters = ('-i', @recipients);
1324        my $raw_from = $sender;
1325        if (defined $envelope_sender && $envelope_sender ne "auto") {
1326                $raw_from = $envelope_sender;
1327        }
1328        $raw_from = extract_valid_address($raw_from);
1329        unshift (@sendmail_parameters,
1330                        '-f', $raw_from) if(defined $envelope_sender);
1331
1332        if ($needs_confirm && !$dry_run) {
1333                print "\n$header\n";
1334                if ($needs_confirm eq "inform") {
1335                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1336                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1337                        print __ <<EOF ;
1338    The Cc list above has been expanded by additional
1339    addresses found in the patch commit message. By default
1340    send-email prompts before sending whenever this occurs.
1341    This behavior is controlled by the sendemail.confirm
1342    configuration setting.
1343
1344    For additional information, run 'git send-email --help'.
1345    To retain the current behavior, but squelch this message,
1346    run 'git config --global sendemail.confirm auto'.
1347
1348EOF
1349                }
1350                # TRANSLATORS: Make sure to include [y] [n] [q] [a] in your
1351                # translation. The program will only accept English input
1352                # at this point.
1353                $_ = ask(__("Send this email? ([y]es|[n]o|[q]uit|[a]ll): "),
1354                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1355                         default => $ask_default);
1356                die __("Send this email reply required") unless defined $_;
1357                if (/^n/i) {
1358                        return 0;
1359                } elsif (/^q/i) {
1360                        cleanup_compose_files();
1361                        exit(0);
1362                } elsif (/^a/i) {
1363                        $confirm = 'never';
1364                }
1365        }
1366
1367        unshift (@sendmail_parameters, @smtp_server_options);
1368
1369        if ($dry_run) {
1370                # We don't want to send the email.
1371        } elsif (file_name_is_absolute($smtp_server)) {
1372                my $pid = open my $sm, '|-';
1373                defined $pid or die $!;
1374                if (!$pid) {
1375                        exec($smtp_server, @sendmail_parameters) or die $!;
1376                }
1377                print $sm "$header\n$message";
1378                close $sm or die $!;
1379        } else {
1380
1381                if (!defined $smtp_server) {
1382                        die __("The required SMTP server is not properly defined.")
1383                }
1384
1385                require Net::SMTP;
1386                my $use_net_smtp_ssl = version->parse($Net::SMTP::VERSION) < version->parse("2.34");
1387                $smtp_domain ||= maildomain();
1388
1389                if ($smtp_encryption eq 'ssl') {
1390                        $smtp_server_port ||= 465; # ssmtp
1391                        require IO::Socket::SSL;
1392
1393                        # Suppress "variable accessed once" warning.
1394                        {
1395                                no warnings 'once';
1396                                $IO::Socket::SSL::DEBUG = 1;
1397                        }
1398
1399                        # Net::SMTP::SSL->new() does not forward any SSL options
1400                        IO::Socket::SSL::set_client_defaults(
1401                                ssl_verify_params());
1402
1403                        if ($use_net_smtp_ssl) {
1404                                require Net::SMTP::SSL;
1405                                $smtp ||= Net::SMTP::SSL->new($smtp_server,
1406                                                              Hello => $smtp_domain,
1407                                                              Port => $smtp_server_port,
1408                                                              Debug => $debug_net_smtp);
1409                        }
1410                        else {
1411                                $smtp ||= Net::SMTP->new($smtp_server,
1412                                                         Hello => $smtp_domain,
1413                                                         Port => $smtp_server_port,
1414                                                         Debug => $debug_net_smtp,
1415                                                         SSL => 1);
1416                        }
1417                }
1418                else {
1419                        $smtp_server_port ||= 25;
1420                        $smtp ||= Net::SMTP->new($smtp_server,
1421                                                 Hello => $smtp_domain,
1422                                                 Debug => $debug_net_smtp,
1423                                                 Port => $smtp_server_port);
1424                        if ($smtp_encryption eq 'tls' && $smtp) {
1425                                if ($use_net_smtp_ssl) {
1426                                        $smtp->command('STARTTLS');
1427                                        $smtp->response();
1428                                        if ($smtp->code != 220) {
1429                                                die sprintf(__("Server does not support STARTTLS! %s"), $smtp->message);
1430                                        }
1431                                        require Net::SMTP::SSL;
1432                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1433                                                                          ssl_verify_params())
1434                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1435                                }
1436                                else {
1437                                        $smtp->starttls(ssl_verify_params())
1438                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1439                                }
1440                                $smtp_encryption = '';
1441                                # Send EHLO again to receive fresh
1442                                # supported commands
1443                                $smtp->hello($smtp_domain);
1444                        }
1445                }
1446
1447                if (!$smtp) {
1448                        die __("Unable to initialize SMTP properly. Check config and use --smtp-debug."),
1449                            " VALUES: server=$smtp_server ",
1450                            "encryption=$smtp_encryption ",
1451                            "hello=$smtp_domain",
1452                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1453                }
1454
1455                smtp_auth_maybe or die $smtp->message;
1456
1457                $smtp->mail( $raw_from ) or die $smtp->message;
1458                $smtp->to( @recipients ) or die $smtp->message;
1459                $smtp->data or die $smtp->message;
1460                $smtp->datasend("$header\n") or die $smtp->message;
1461                my @lines = split /^/, $message;
1462                foreach my $line (@lines) {
1463                        $smtp->datasend("$line") or die $smtp->message;
1464                }
1465                $smtp->dataend() or die $smtp->message;
1466                $smtp->code =~ /250|200/ or die sprintf(__("Failed to send %s\n"), $subject).$smtp->message;
1467        }
1468        if ($quiet) {
1469                printf($dry_run ? __("Dry-Sent %s\n") : __("Sent %s\n"), $subject);
1470        } else {
1471                print($dry_run ? __("Dry-OK. Log says:\n") : __("OK. Log says:\n"));
1472                if (!file_name_is_absolute($smtp_server)) {
1473                        print "Server: $smtp_server\n";
1474                        print "MAIL FROM:<$raw_from>\n";
1475                        foreach my $entry (@recipients) {
1476                            print "RCPT TO:<$entry>\n";
1477                        }
1478                } else {
1479                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1480                }
1481                print $header, "\n";
1482                if ($smtp) {
1483                        print __("Result: "), $smtp->code, ' ',
1484                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1485                } else {
1486                        print __("Result: OK\n");
1487                }
1488        }
1489
1490        return 1;
1491}
1492
1493$reply_to = $initial_reply_to;
1494$references = $initial_reply_to || '';
1495$subject = $initial_subject;
1496$message_num = 0;
1497
1498foreach my $t (@files) {
1499        open my $fh, "<", $t or die sprintf(__("can't open file %s"), $t);
1500
1501        my $author = undef;
1502        my $sauthor = undef;
1503        my $author_encoding;
1504        my $has_content_type;
1505        my $body_encoding;
1506        my $xfer_encoding;
1507        my $has_mime_version;
1508        @to = ();
1509        @cc = ();
1510        @xh = ();
1511        my $input_format = undef;
1512        my @header = ();
1513        $message = "";
1514        $message_num++;
1515        # First unfold multiline header fields
1516        while(<$fh>) {
1517                last if /^\s*$/;
1518                if (/^\s+\S/ and @header) {
1519                        chomp($header[$#header]);
1520                        s/^\s+/ /;
1521                        $header[$#header] .= $_;
1522            } else {
1523                        push(@header, $_);
1524                }
1525        }
1526        # Now parse the header
1527        foreach(@header) {
1528                if (/^From /) {
1529                        $input_format = 'mbox';
1530                        next;
1531                }
1532                chomp;
1533                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1534                        $input_format = 'mbox';
1535                }
1536
1537                if (defined $input_format && $input_format eq 'mbox') {
1538                        if (/^Subject:\s+(.*)$/i) {
1539                                $subject = $1;
1540                        }
1541                        elsif (/^From:\s+(.*)$/i) {
1542                                ($author, $author_encoding) = unquote_rfc2047($1);
1543                                $sauthor = sanitize_address($author);
1544                                next if $suppress_cc{'author'};
1545                                next if $suppress_cc{'self'} and $sauthor eq $sender;
1546                                printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1547                                        $1, $_) unless $quiet;
1548                                push @cc, $1;
1549                        }
1550                        elsif (/^To:\s+(.*)$/i) {
1551                                foreach my $addr (parse_address_line($1)) {
1552                                        printf(__("(mbox) Adding to: %s from line '%s'\n"),
1553                                                $addr, $_) unless $quiet;
1554                                        push @to, $addr;
1555                                }
1556                        }
1557                        elsif (/^Cc:\s+(.*)$/i) {
1558                                foreach my $addr (parse_address_line($1)) {
1559                                        my $qaddr = unquote_rfc2047($addr);
1560                                        my $saddr = sanitize_address($qaddr);
1561                                        if ($saddr eq $sender) {
1562                                                next if ($suppress_cc{'self'});
1563                                        } else {
1564                                                next if ($suppress_cc{'cc'});
1565                                        }
1566                                        printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1567                                                $addr, $_) unless $quiet;
1568                                        push @cc, $addr;
1569                                }
1570                        }
1571                        elsif (/^Content-type:/i) {
1572                                $has_content_type = 1;
1573                                if (/charset="?([^ "]+)/) {
1574                                        $body_encoding = $1;
1575                                }
1576                                push @xh, $_;
1577                        }
1578                        elsif (/^MIME-Version/i) {
1579                                $has_mime_version = 1;
1580                                push @xh, $_;
1581                        }
1582                        elsif (/^Message-Id: (.*)/i) {
1583                                $message_id = $1;
1584                        }
1585                        elsif (/^Content-Transfer-Encoding: (.*)/i) {
1586                                $xfer_encoding = $1 if not defined $xfer_encoding;
1587                        }
1588                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1589                                push @xh, $_;
1590                        }
1591
1592                } else {
1593                        # In the traditional
1594                        # "send lots of email" format,
1595                        # line 1 = cc
1596                        # line 2 = subject
1597                        # So let's support that, too.
1598                        $input_format = 'lots';
1599                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1600                                printf(__("(non-mbox) Adding cc: %s from line '%s'\n"),
1601                                        $_, $_) unless $quiet;
1602                                push @cc, $_;
1603                        } elsif (!defined $subject) {
1604                                $subject = $_;
1605                        }
1606                }
1607        }
1608        # Now parse the message body
1609        while(<$fh>) {
1610                $message .=  $_;
1611                if (/^(Signed-off-by|Cc): (.*)/i) {
1612                        chomp;
1613                        my ($what, $c) = ($1, $2);
1614                        # strip garbage for the address we'll use:
1615                        $c = strip_garbage_one_address($c);
1616                        # sanitize a bit more to decide whether to suppress the address:
1617                        my $sc = sanitize_address($c);
1618                        if ($sc eq $sender) {
1619                                next if ($suppress_cc{'self'});
1620                        } else {
1621                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1622                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1623                        }
1624                        push @cc, $c;
1625                        printf(__("(body) Adding cc: %s from line '%s'\n"),
1626                                $c, $_) unless $quiet;
1627                }
1628        }
1629        close $fh;
1630
1631        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1632                if defined $to_cmd;
1633        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1634                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1635
1636        if ($broken_encoding{$t} && !$has_content_type) {
1637                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1638                $has_content_type = 1;
1639                push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding";
1640                $body_encoding = $auto_8bit_encoding;
1641        }
1642
1643        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1644                $subject = quote_subject($subject, $auto_8bit_encoding);
1645        }
1646
1647        if (defined $sauthor and $sauthor ne $sender) {
1648                $message = "From: $author\n\n$message";
1649                if (defined $author_encoding) {
1650                        if ($has_content_type) {
1651                                if ($body_encoding eq $author_encoding) {
1652                                        # ok, we already have the right encoding
1653                                }
1654                                else {
1655                                        # uh oh, we should re-encode
1656                                }
1657                        }
1658                        else {
1659                                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1660                                $has_content_type = 1;
1661                                push @xh,
1662                                  "Content-Type: text/plain; charset=$author_encoding";
1663                        }
1664                }
1665        }
1666        if (defined $target_xfer_encoding) {
1667                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1668                $message = apply_transfer_encoding(
1669                        $message, $xfer_encoding, $target_xfer_encoding);
1670                $xfer_encoding = $target_xfer_encoding;
1671        }
1672        if (defined $xfer_encoding) {
1673                push @xh, "Content-Transfer-Encoding: $xfer_encoding";
1674        }
1675        if (defined $xfer_encoding or $has_content_type) {
1676                unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version;
1677        }
1678
1679        $needs_confirm = (
1680                $confirm eq "always" or
1681                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1682                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1683        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1684
1685        @to = process_address_list(@to);
1686        @cc = process_address_list(@cc);
1687
1688        @to = (@initial_to, @to);
1689        @cc = (@initial_cc, @cc);
1690
1691        if ($message_num == 1) {
1692                if (defined $cover_cc and $cover_cc) {
1693                        @initial_cc = @cc;
1694                }
1695                if (defined $cover_to and $cover_to) {
1696                        @initial_to = @to;
1697                }
1698        }
1699
1700        my $message_was_sent = send_message();
1701
1702        # set up for the next message
1703        if ($thread && $message_was_sent &&
1704                ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
1705                $message_num == 1)) {
1706                $reply_to = $message_id;
1707                if (length $references > 0) {
1708                        $references .= "\n $message_id";
1709                } else {
1710                        $references = "$message_id";
1711                }
1712        }
1713        $message_id = undef;
1714        $num_sent++;
1715        if (defined $batch_size && $num_sent == $batch_size) {
1716                $num_sent = 0;
1717                $smtp->quit if defined $smtp;
1718                undef $smtp;
1719                undef $auth;
1720                sleep($relogin_delay) if defined $relogin_delay;
1721        }
1722}
1723
1724# Execute a command (e.g. $to_cmd) to get a list of email addresses
1725# and return a results array
1726sub recipients_cmd {
1727        my ($prefix, $what, $cmd, $file) = @_;
1728
1729        my @addresses = ();
1730        open my $fh, "-|", "$cmd \Q$file\E"
1731            or die sprintf(__("(%s) Could not execute '%s'"), $prefix, $cmd);
1732        while (my $address = <$fh>) {
1733                $address =~ s/^\s*//g;
1734                $address =~ s/\s*$//g;
1735                $address = sanitize_address($address);
1736                next if ($address eq $sender and $suppress_cc{'self'});
1737                push @addresses, $address;
1738                printf(__("(%s) Adding %s: %s from: '%s'\n"),
1739                       $prefix, $what, $address, $cmd) unless $quiet;
1740                }
1741        close $fh
1742            or die sprintf(__("(%s) failed to close pipe to '%s'"), $prefix, $cmd);
1743        return @addresses;
1744}
1745
1746cleanup_compose_files();
1747
1748sub cleanup_compose_files {
1749        unlink($compose_filename, $compose_filename . ".final") if $compose;
1750}
1751
1752$smtp->quit if $smtp;
1753
1754sub apply_transfer_encoding {
1755        my $message = shift;
1756        my $from = shift;
1757        my $to = shift;
1758
1759        return $message if ($from eq $to and $from ne '7bit');
1760
1761        require MIME::QuotedPrint;
1762        require MIME::Base64;
1763
1764        $message = MIME::QuotedPrint::decode($message)
1765                if ($from eq 'quoted-printable');
1766        $message = MIME::Base64::decode($message)
1767                if ($from eq 'base64');
1768
1769        die __("cannot send message as 7bit")
1770                if ($to eq '7bit' and $message =~ /[^[:ascii:]]/);
1771        return $message
1772                if ($to eq '7bit' or $to eq '8bit');
1773        return MIME::QuotedPrint::encode($message, "\n", 0)
1774                if ($to eq 'quoted-printable');
1775        return MIME::Base64::encode($message, "\n")
1776                if ($to eq 'base64');
1777        die __("invalid transfer encoding");
1778}
1779
1780sub unique_email_list {
1781        my %seen;
1782        my @emails;
1783
1784        foreach my $entry (@_) {
1785                my $clean = extract_valid_address_or_die($entry);
1786                $seen{$clean} ||= 0;
1787                next if $seen{$clean}++;
1788                push @emails, $entry;
1789        }
1790        return @emails;
1791}
1792
1793sub validate_patch {
1794        my $fn = shift;
1795
1796        if ($repo) {
1797                my $validate_hook = catfile(catdir($repo->repo_path(), 'hooks'),
1798                                            'sendemail-validate');
1799                my $hook_error;
1800                if (-x $validate_hook) {
1801                        my $target = abs_path($fn);
1802                        # The hook needs a correct cwd and GIT_DIR.
1803                        my $cwd_save = cwd();
1804                        chdir($repo->wc_path() or $repo->repo_path())
1805                                or die("chdir: $!");
1806                        local $ENV{"GIT_DIR"} = $repo->repo_path();
1807                        $hook_error = "rejected by sendemail-validate hook"
1808                                if system($validate_hook, $target);
1809                        chdir($cwd_save) or die("chdir: $!");
1810                }
1811                return $hook_error if $hook_error;
1812        }
1813
1814        open(my $fh, '<', $fn)
1815                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1816        while (my $line = <$fh>) {
1817                if (length($line) > 998) {
1818                        return sprintf(__("%s: patch contains a line longer than 998 characters"), $.);
1819                }
1820        }
1821        return;
1822}
1823
1824sub handle_backup {
1825        my ($last, $lastlen, $file, $known_suffix) = @_;
1826        my ($suffix, $skip);
1827
1828        $skip = 0;
1829        if (defined $last &&
1830            ($lastlen < length($file)) &&
1831            (substr($file, 0, $lastlen) eq $last) &&
1832            ($suffix = substr($file, $lastlen)) !~ /^[a-z0-9]/i) {
1833                if (defined $known_suffix && $suffix eq $known_suffix) {
1834                        printf(__("Skipping %s with backup suffix '%s'.\n"), $file, $known_suffix);
1835                        $skip = 1;
1836                } else {
1837                        # TRANSLATORS: please keep "[y|N]" as is.
1838                        my $answer = ask(sprintf(__("Do you really want to send %s? [y|N]: "), $file),
1839                                         valid_re => qr/^(?:y|n)/i,
1840                                         default => 'n');
1841                        $skip = ($answer ne 'y');
1842                        if ($skip) {
1843                                $known_suffix = $suffix;
1844                        }
1845                }
1846        }
1847        return ($skip, $known_suffix);
1848}
1849
1850sub handle_backup_files {
1851        my @file = @_;
1852        my ($last, $lastlen, $known_suffix, $skip, @result);
1853        for my $file (@file) {
1854                ($skip, $known_suffix) = handle_backup($last, $lastlen,
1855                                                       $file, $known_suffix);
1856                push @result, $file unless $skip;
1857                $last = $file;
1858                $lastlen = length($file);
1859        }
1860        return @result;
1861}
1862
1863sub file_has_nonascii {
1864        my $fn = shift;
1865        open(my $fh, '<', $fn)
1866                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1867        while (my $line = <$fh>) {
1868                return 1 if $line =~ /[^[:ascii:]]/;
1869        }
1870        return 0;
1871}
1872
1873sub body_or_subject_has_nonascii {
1874        my $fn = shift;
1875        open(my $fh, '<', $fn)
1876                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1877        while (my $line = <$fh>) {
1878                last if $line =~ /^$/;
1879                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1880        }
1881        while (my $line = <$fh>) {
1882                return 1 if $line =~ /[^[:ascii:]]/;
1883        }
1884        return 0;
1885}