git-send-email.perlon commit Merge branch 'jc/utf8-fprintf' into maint (127c13a)
   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(catfile);
  29use Error qw(:try);
  30use Git;
  31use Git::I18N;
  32
  33Getopt::Long::Configure qw/ pass_through /;
  34
  35package FakeTerm;
  36sub new {
  37        my ($class, $reason) = @_;
  38        return bless \$reason, shift;
  39}
  40sub readline {
  41        my $self = shift;
  42        die "Cannot use readline on FakeTerm: $$self";
  43}
  44package main;
  45
  46
  47sub usage {
  48        print <<EOT;
  49git send-email [options] <file | directory | rev-list options >
  50git send-email --dump-aliases
  51
  52  Composing:
  53    --from                  <str>  * Email From:
  54    --[no-]to               <str>  * Email To:
  55    --[no-]cc               <str>  * Email Cc:
  56    --[no-]bcc              <str>  * Email Bcc:
  57    --subject               <str>  * Email "Subject:"
  58    --in-reply-to           <str>  * Email "In-Reply-To:"
  59    --[no-]xmailer                 * Add "X-Mailer:" header (default).
  60    --[no-]annotate                * Review each patch that will be sent in an editor.
  61    --compose                      * Open an editor for introduction.
  62    --compose-encoding      <str>  * Encoding to assume for introduction.
  63    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  64    --transfer-encoding     <str>  * Transfer encoding to use (quoted-printable, 8bit, base64)
  65
  66  Sending:
  67    --envelope-sender       <str>  * Email envelope sender.
  68    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  69                                     is optional. Default 'localhost'.
  70    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  71    --smtp-server-port      <int>  * Outgoing SMTP server port.
  72    --smtp-user             <str>  * Username for SMTP-AUTH.
  73    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  74    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  75    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  76    --smtp-ssl-cert-path    <str>  * Path to ca-certificates (either directory or file).
  77                                     Pass an empty string to disable certificate
  78                                     verification.
  79    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  80    --smtp-auth             <str>  * Space-separated list of allowed AUTH mechanisms.
  81                                     This setting forces to use one of the listed mechanisms.
  82    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  83
  84  Automating:
  85    --identity              <str>  * Use the sendemail.<id> options.
  86    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  87    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  88    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  89    --[no-]cc-cover                * Email Cc: addresses in the cover letter.
  90    --[no-]to-cover                * Email To: addresses in the cover letter.
  91    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  92    --[no-]suppress-from           * Send to self. Default off.
  93    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
  94    --[no-]thread                  * Use In-Reply-To: field. Default on.
  95
  96  Administering:
  97    --confirm               <str>  * Confirm recipients before sending;
  98                                     auto, cc, compose, always, or never.
  99    --quiet                        * Output one line of info per email.
 100    --dry-run                      * Don't actually send the emails.
 101    --[no-]validate                * Perform patch sanity checks. Default on.
 102    --[no-]format-patch            * understand any non optional arguments as
 103                                     `git format-patch` ones.
 104    --force                        * Send even if safety checks would prevent it.
 105
 106  Information:
 107    --dump-aliases                 * Dump configured aliases and exit.
 108
 109EOT
 110        exit(1);
 111}
 112
 113# most mail servers generate the Date: header, but not all...
 114sub format_2822_time {
 115        my ($time) = @_;
 116        my @localtm = localtime($time);
 117        my @gmttm = gmtime($time);
 118        my $localmin = $localtm[1] + $localtm[2] * 60;
 119        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 120        if ($localtm[0] != $gmttm[0]) {
 121                die __("local zone differs from GMT by a non-minute interval\n");
 122        }
 123        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 124                $localmin += 1440;
 125        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 126                $localmin -= 1440;
 127        } elsif ($gmttm[6] != $localtm[6]) {
 128                die __("local time offset greater than or equal to 24 hours\n");
 129        }
 130        my $offset = $localmin - $gmtmin;
 131        my $offhour = $offset / 60;
 132        my $offmin = abs($offset % 60);
 133        if (abs($offhour) >= 24) {
 134                die __("local time offset greater than or equal to 24 hours\n");
 135        }
 136
 137        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 138                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 139                       $localtm[3],
 140                       qw(Jan Feb Mar Apr May Jun
 141                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 142                       $localtm[5]+1900,
 143                       $localtm[2],
 144                       $localtm[1],
 145                       $localtm[0],
 146                       ($offset >= 0) ? '+' : '-',
 147                       abs($offhour),
 148                       $offmin,
 149                       );
 150}
 151
 152my $have_email_valid = eval { require Email::Valid; 1 };
 153my $have_mail_address = eval { require Mail::Address; 1 };
 154my $smtp;
 155my $auth;
 156
 157# Regexes for RFC 2047 productions.
 158my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/;
 159my $re_encoded_text = qr/[^? \000-\037\177-\377]+/;
 160my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 161
 162# Variables we fill in automatically, or via prompting:
 163my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 164        $initial_reply_to,$initial_subject,@files,
 165        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 166
 167my $envelope_sender;
 168
 169# Example reply to:
 170#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 171
 172my $repo = eval { Git->repository() };
 173my @repo = $repo ? ($repo) : ();
 174my $term = eval {
 175        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 176                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 177                : new Term::ReadLine 'git-send-email';
 178};
 179if ($@) {
 180        $term = new FakeTerm "$@: going non-interactive";
 181}
 182
 183# Behavior modification variables
 184my ($quiet, $dry_run) = (0, 0);
 185my $format_patch;
 186my $compose_filename;
 187my $force = 0;
 188my $dump_aliases = 0;
 189
 190# Handle interactive edition of files.
 191my $multiedit;
 192my $editor;
 193
 194sub do_edit {
 195        if (!defined($editor)) {
 196                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 197        }
 198        if (defined($multiedit) && !$multiedit) {
 199                map {
 200                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 201                        if (($? & 127) || ($? >> 8)) {
 202                                die(__("the editor exited uncleanly, aborting everything"));
 203                        }
 204                } @_;
 205        } else {
 206                system('sh', '-c', $editor.' "$@"', $editor, @_);
 207                if (($? & 127) || ($? >> 8)) {
 208                        die(__("the editor exited uncleanly, aborting everything"));
 209                }
 210        }
 211}
 212
 213# Variables with corresponding config settings
 214my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 215my ($cover_cc, $cover_to);
 216my ($to_cmd, $cc_cmd);
 217my ($smtp_server, $smtp_server_port, @smtp_server_options);
 218my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 219my ($identity, $aliasfiletype, @alias_files, $smtp_domain, $smtp_auth);
 220my ($validate, $confirm);
 221my (@suppress_cc);
 222my ($auto_8bit_encoding);
 223my ($compose_encoding);
 224my ($target_xfer_encoding);
 225
 226my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 227
 228my %config_bool_settings = (
 229    "thread" => [\$thread, 1],
 230    "chainreplyto" => [\$chain_reply_to, 0],
 231    "suppressfrom" => [\$suppress_from, undef],
 232    "signedoffbycc" => [\$signed_off_by_cc, undef],
 233    "cccover" => [\$cover_cc, undef],
 234    "tocover" => [\$cover_to, undef],
 235    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 236    "validate" => [\$validate, 1],
 237    "multiedit" => [\$multiedit, undef],
 238    "annotate" => [\$annotate, undef],
 239    "xmailer" => [\$use_xmailer, 1]
 240);
 241
 242my %config_settings = (
 243    "smtpserver" => \$smtp_server,
 244    "smtpserverport" => \$smtp_server_port,
 245    "smtpserveroption" => \@smtp_server_options,
 246    "smtpuser" => \$smtp_authuser,
 247    "smtppass" => \$smtp_authpass,
 248    "smtpdomain" => \$smtp_domain,
 249    "smtpauth" => \$smtp_auth,
 250    "to" => \@initial_to,
 251    "tocmd" => \$to_cmd,
 252    "cc" => \@initial_cc,
 253    "cccmd" => \$cc_cmd,
 254    "aliasfiletype" => \$aliasfiletype,
 255    "bcc" => \@bcclist,
 256    "suppresscc" => \@suppress_cc,
 257    "envelopesender" => \$envelope_sender,
 258    "confirm"   => \$confirm,
 259    "from" => \$sender,
 260    "assume8bitencoding" => \$auto_8bit_encoding,
 261    "composeencoding" => \$compose_encoding,
 262    "transferencoding" => \$target_xfer_encoding,
 263);
 264
 265my %config_path_settings = (
 266    "aliasesfile" => \@alias_files,
 267    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 268);
 269
 270# Handle Uncouth Termination
 271sub signal_handler {
 272
 273        # Make text normal
 274        print color("reset"), "\n";
 275
 276        # SMTP password masked
 277        system "stty echo";
 278
 279        # tmp files from --compose
 280        if (defined $compose_filename) {
 281                if (-e $compose_filename) {
 282                        printf __("'%s' contains an intermediate version ".
 283                                  "of the email you were composing.\n"),
 284                                  $compose_filename;
 285                }
 286                if (-e ($compose_filename . ".final")) {
 287                        printf __("'%s.final' contains the composed email.\n"),
 288                                  $compose_filename;
 289                }
 290        }
 291
 292        exit;
 293};
 294
 295$SIG{TERM} = \&signal_handler;
 296$SIG{INT}  = \&signal_handler;
 297
 298# Begin by accumulating all the variables (defined above), that we will end up
 299# needing, first, from the command line:
 300
 301my $help;
 302my $rc = GetOptions("h" => \$help,
 303                    "dump-aliases" => \$dump_aliases);
 304usage() unless $rc;
 305die __("--dump-aliases incompatible with other options\n")
 306    if !$help and $dump_aliases and @ARGV;
 307$rc = GetOptions(
 308                    "sender|from=s" => \$sender,
 309                    "in-reply-to=s" => \$initial_reply_to,
 310                    "subject=s" => \$initial_subject,
 311                    "to=s" => \@initial_to,
 312                    "to-cmd=s" => \$to_cmd,
 313                    "no-to" => \$no_to,
 314                    "cc=s" => \@initial_cc,
 315                    "no-cc" => \$no_cc,
 316                    "bcc=s" => \@bcclist,
 317                    "no-bcc" => \$no_bcc,
 318                    "chain-reply-to!" => \$chain_reply_to,
 319                    "no-chain-reply-to" => sub {$chain_reply_to = 0},
 320                    "smtp-server=s" => \$smtp_server,
 321                    "smtp-server-option=s" => \@smtp_server_options,
 322                    "smtp-server-port=s" => \$smtp_server_port,
 323                    "smtp-user=s" => \$smtp_authuser,
 324                    "smtp-pass:s" => \$smtp_authpass,
 325                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 326                    "smtp-encryption=s" => \$smtp_encryption,
 327                    "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path,
 328                    "smtp-debug:i" => \$debug_net_smtp,
 329                    "smtp-domain:s" => \$smtp_domain,
 330                    "smtp-auth=s" => \$smtp_auth,
 331                    "identity=s" => \$identity,
 332                    "annotate!" => \$annotate,
 333                    "no-annotate" => sub {$annotate = 0},
 334                    "compose" => \$compose,
 335                    "quiet" => \$quiet,
 336                    "cc-cmd=s" => \$cc_cmd,
 337                    "suppress-from!" => \$suppress_from,
 338                    "no-suppress-from" => sub {$suppress_from = 0},
 339                    "suppress-cc=s" => \@suppress_cc,
 340                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 341                    "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0},
 342                    "cc-cover|cc-cover!" => \$cover_cc,
 343                    "no-cc-cover" => sub {$cover_cc = 0},
 344                    "to-cover|to-cover!" => \$cover_to,
 345                    "no-to-cover" => sub {$cover_to = 0},
 346                    "confirm=s" => \$confirm,
 347                    "dry-run" => \$dry_run,
 348                    "envelope-sender=s" => \$envelope_sender,
 349                    "thread!" => \$thread,
 350                    "no-thread" => sub {$thread = 0},
 351                    "validate!" => \$validate,
 352                    "no-validate" => sub {$validate = 0},
 353                    "transfer-encoding=s" => \$target_xfer_encoding,
 354                    "format-patch!" => \$format_patch,
 355                    "no-format-patch" => sub {$format_patch = 0},
 356                    "8bit-encoding=s" => \$auto_8bit_encoding,
 357                    "compose-encoding=s" => \$compose_encoding,
 358                    "force" => \$force,
 359                    "xmailer!" => \$use_xmailer,
 360                    "no-xmailer" => sub {$use_xmailer = 0},
 361         );
 362
 363usage() if $help;
 364unless ($rc) {
 365    usage();
 366}
 367
 368die __("Cannot run git format-patch from outside a repository\n")
 369        if $format_patch and not $repo;
 370
 371# Now, let's fill any that aren't set in with defaults:
 372
 373sub read_config {
 374        my ($prefix) = @_;
 375
 376        foreach my $setting (keys %config_bool_settings) {
 377                my $target = $config_bool_settings{$setting}->[0];
 378                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 379        }
 380
 381        foreach my $setting (keys %config_path_settings) {
 382                my $target = $config_path_settings{$setting};
 383                if (ref($target) eq "ARRAY") {
 384                        unless (@$target) {
 385                                my @values = Git::config_path(@repo, "$prefix.$setting");
 386                                @$target = @values if (@values && defined $values[0]);
 387                        }
 388                }
 389                else {
 390                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 391                }
 392        }
 393
 394        foreach my $setting (keys %config_settings) {
 395                my $target = $config_settings{$setting};
 396                next if $setting eq "to" and defined $no_to;
 397                next if $setting eq "cc" and defined $no_cc;
 398                next if $setting eq "bcc" and defined $no_bcc;
 399                if (ref($target) eq "ARRAY") {
 400                        unless (@$target) {
 401                                my @values = Git::config(@repo, "$prefix.$setting");
 402                                @$target = @values if (@values && defined $values[0]);
 403                        }
 404                }
 405                else {
 406                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 407                }
 408        }
 409
 410        if (!defined $smtp_encryption) {
 411                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 412                if (defined $enc) {
 413                        $smtp_encryption = $enc;
 414                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 415                        $smtp_encryption = 'ssl';
 416                }
 417        }
 418}
 419
 420# read configuration from [sendemail "$identity"], fall back on [sendemail]
 421$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 422read_config("sendemail.$identity") if (defined $identity);
 423read_config("sendemail");
 424
 425# fall back on builtin bool defaults
 426foreach my $setting (values %config_bool_settings) {
 427        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 428}
 429
 430# 'default' encryption is none -- this only prevents a warning
 431$smtp_encryption = '' unless (defined $smtp_encryption);
 432
 433# Set CC suppressions
 434my(%suppress_cc);
 435if (@suppress_cc) {
 436        foreach my $entry (@suppress_cc) {
 437                die sprintf(__("Unknown --suppress-cc field: '%s'\n"), $entry)
 438                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 439                $suppress_cc{$entry} = 1;
 440        }
 441}
 442
 443if ($suppress_cc{'all'}) {
 444        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 445                $suppress_cc{$entry} = 1;
 446        }
 447        delete $suppress_cc{'all'};
 448}
 449
 450# If explicit old-style ones are specified, they trump --suppress-cc.
 451$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 452$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 453
 454if ($suppress_cc{'body'}) {
 455        foreach my $entry (qw (sob bodycc)) {
 456                $suppress_cc{$entry} = 1;
 457        }
 458        delete $suppress_cc{'body'};
 459}
 460
 461# Set confirm's default value
 462my $confirm_unconfigured = !defined $confirm;
 463if ($confirm_unconfigured) {
 464        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 465};
 466die sprintf(__("Unknown --confirm setting: '%s'\n"), $confirm)
 467        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 468
 469# Debugging, print out the suppressions.
 470if (0) {
 471        print "suppressions:\n";
 472        foreach my $entry (keys %suppress_cc) {
 473                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 474        }
 475}
 476
 477my ($repoauthor, $repocommitter);
 478($repoauthor) = Git::ident_person(@repo, 'author');
 479($repocommitter) = Git::ident_person(@repo, 'committer');
 480
 481sub parse_address_line {
 482        if ($have_mail_address) {
 483                return map { $_->format } Mail::Address->parse($_[0]);
 484        } else {
 485                return Git::parse_mailboxes($_[0]);
 486        }
 487}
 488
 489sub split_addrs {
 490        return quotewords('\s*,\s*', 1, @_);
 491}
 492
 493my %aliases;
 494
 495sub parse_sendmail_alias {
 496        local $_ = shift;
 497        if (/"/) {
 498                printf STDERR __("warning: sendmail alias with quotes is not supported: %s\n"), $_;
 499        } elsif (/:include:/) {
 500                printf STDERR __("warning: `:include:` not supported: %s\n"), $_;
 501        } elsif (/[\/|]/) {
 502                printf STDERR __("warning: `/file` or `|pipe` redirection not supported: %s\n"), $_;
 503        } elsif (/^(\S+?)\s*:\s*(.+)$/) {
 504                my ($alias, $addr) = ($1, $2);
 505                $aliases{$alias} = [ split_addrs($addr) ];
 506        } else {
 507                printf STDERR __("warning: sendmail line is not recognized: %s\n"), $_;
 508        }
 509}
 510
 511sub parse_sendmail_aliases {
 512        my $fh = shift;
 513        my $s = '';
 514        while (<$fh>) {
 515                chomp;
 516                next if /^\s*$/ || /^\s*#/;
 517                $s .= $_, next if $s =~ s/\\$// || s/^\s+//;
 518                parse_sendmail_alias($s) if $s;
 519                $s = $_;
 520        }
 521        $s =~ s/\\$//; # silently tolerate stray '\' on last line
 522        parse_sendmail_alias($s) if $s;
 523}
 524
 525my %parse_alias = (
 526        # multiline formats can be supported in the future
 527        mutt => sub { my $fh = shift; while (<$fh>) {
 528                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 529                        my ($alias, $addr) = ($1, $2);
 530                        $addr =~ s/#.*$//; # mutt allows # comments
 531                        # commas delimit multiple addresses
 532                        my @addr = split_addrs($addr);
 533
 534                        # quotes may be escaped in the file,
 535                        # unescape them so we do not double-escape them later.
 536                        s/\\"/"/g foreach @addr;
 537                        $aliases{$alias} = \@addr
 538                }}},
 539        mailrc => sub { my $fh = shift; while (<$fh>) {
 540                if (/^alias\s+(\S+)\s+(.*?)\s*$/) {
 541                        # spaces delimit multiple addresses
 542                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 543                }}},
 544        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 545                for (my $x = ''; defined($x); $x = $_) {
 546                        chomp $x;
 547                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 548                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 549                        $aliases{$1} = [ split_addrs($2) ];
 550                }},
 551        elm => sub  { my $fh = shift;
 552                      while (<$fh>) {
 553                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 554                              my ($alias, $addr) = ($1, $2);
 555                               $aliases{$alias} = [ split_addrs($addr) ];
 556                          }
 557                      } },
 558        sendmail => \&parse_sendmail_aliases,
 559        gnus => sub { my $fh = shift; while (<$fh>) {
 560                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 561                        $aliases{$1} = [ $2 ];
 562                }}}
 563);
 564
 565if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 566        foreach my $file (@alias_files) {
 567                open my $fh, '<', $file or die "opening $file: $!\n";
 568                $parse_alias{$aliasfiletype}->($fh);
 569                close $fh;
 570        }
 571}
 572
 573if ($dump_aliases) {
 574    print "$_\n" for (sort keys %aliases);
 575    exit(0);
 576}
 577
 578# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 579# $f is a revision list specification to be passed to format-patch.
 580sub is_format_patch_arg {
 581        return unless $repo;
 582        my $f = shift;
 583        try {
 584                $repo->command('rev-parse', '--verify', '--quiet', $f);
 585                if (defined($format_patch)) {
 586                        return $format_patch;
 587                }
 588                die sprintf(__ <<EOF, $f, $f);
 589File '%s' exists but it could also be the range of commits
 590to produce patches for.  Please disambiguate by...
 591
 592    * Saying "./%s" if you mean a file; or
 593    * Giving --format-patch option if you mean a range.
 594EOF
 595        } catch Git::Error::Command with {
 596                # Not a valid revision.  Treat it as a filename.
 597                return 0;
 598        }
 599}
 600
 601# Now that all the defaults are set, process the rest of the command line
 602# arguments and collect up the files that need to be processed.
 603my @rev_list_opts;
 604while (defined(my $f = shift @ARGV)) {
 605        if ($f eq "--") {
 606                push @rev_list_opts, "--", @ARGV;
 607                @ARGV = ();
 608        } elsif (-d $f and !is_format_patch_arg($f)) {
 609                opendir my $dh, $f
 610                        or die sprintf(__("Failed to opendir %s: %s"), $f, $!);
 611
 612                push @files, grep { -f $_ } map { catfile($f, $_) }
 613                                sort readdir $dh;
 614                closedir $dh;
 615        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 616                push @files, $f;
 617        } else {
 618                push @rev_list_opts, $f;
 619        }
 620}
 621
 622if (@rev_list_opts) {
 623        die __("Cannot run git format-patch from outside a repository\n")
 624                unless $repo;
 625        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 626}
 627
 628@files = handle_backup_files(@files);
 629
 630if ($validate) {
 631        foreach my $f (@files) {
 632                unless (-p $f) {
 633                        my $error = validate_patch($f);
 634                        $error and die sprintf(__("fatal: %s: %s\nwarning: no patches were sent\n"),
 635                                                  $f, $error);
 636                }
 637        }
 638}
 639
 640if (@files) {
 641        unless ($quiet) {
 642                print $_,"\n" for (@files);
 643        }
 644} else {
 645        print STDERR __("\nNo patch files specified!\n\n");
 646        usage();
 647}
 648
 649sub get_patch_subject {
 650        my $fn = shift;
 651        open (my $fh, '<', $fn);
 652        while (my $line = <$fh>) {
 653                next unless ($line =~ /^Subject: (.*)$/);
 654                close $fh;
 655                return "GIT: $1\n";
 656        }
 657        close $fh;
 658        die sprintf(__("No subject line in %s?"), $fn);
 659}
 660
 661if ($compose) {
 662        # Note that this does not need to be secure, but we will make a small
 663        # effort to have it be unique
 664        $compose_filename = ($repo ?
 665                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 666                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 667        open my $c, ">", $compose_filename
 668                or die sprintf(__("Failed to open for writing %s: %s"), $compose_filename, $!);
 669
 670
 671        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 672        my $tpl_subject = $initial_subject || '';
 673        my $tpl_reply_to = $initial_reply_to || '';
 674
 675        print $c <<EOT1, Git::prefix_lines("GIT: ", __ <<EOT2), <<EOT3;
 676From $tpl_sender # This line is ignored.
 677EOT1
 678Lines beginning in "GIT:" will be removed.
 679Consider including an overall diffstat or table of contents
 680for the patch you are writing.
 681
 682Clear the body content if you don't wish to send a summary.
 683EOT2
 684From: $tpl_sender
 685Subject: $tpl_subject
 686In-Reply-To: $tpl_reply_to
 687
 688EOT3
 689        for my $f (@files) {
 690                print $c get_patch_subject($f);
 691        }
 692        close $c;
 693
 694        if ($annotate) {
 695                do_edit($compose_filename, @files);
 696        } else {
 697                do_edit($compose_filename);
 698        }
 699
 700        open my $c2, ">", $compose_filename . ".final"
 701                or die sprintf(__("Failed to open %s.final: %s"), $compose_filename, $!);
 702
 703        open $c, "<", $compose_filename
 704                or die sprintf(__("Failed to open %s: %s"), $compose_filename, $!);
 705
 706        my $need_8bit_cte = file_has_nonascii($compose_filename);
 707        my $in_body = 0;
 708        my $summary_empty = 1;
 709        if (!defined $compose_encoding) {
 710                $compose_encoding = "UTF-8";
 711        }
 712        while(<$c>) {
 713                next if m/^GIT:/;
 714                if ($in_body) {
 715                        $summary_empty = 0 unless (/^\n$/);
 716                } elsif (/^\n$/) {
 717                        $in_body = 1;
 718                        if ($need_8bit_cte) {
 719                                print $c2 "MIME-Version: 1.0\n",
 720                                         "Content-Type: text/plain; ",
 721                                           "charset=$compose_encoding\n",
 722                                         "Content-Transfer-Encoding: 8bit\n";
 723                        }
 724                } elsif (/^MIME-Version:/i) {
 725                        $need_8bit_cte = 0;
 726                } elsif (/^Subject:\s*(.+)\s*$/i) {
 727                        $initial_subject = $1;
 728                        my $subject = $initial_subject;
 729                        $_ = "Subject: " .
 730                                quote_subject($subject, $compose_encoding) .
 731                                "\n";
 732                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 733                        $initial_reply_to = $1;
 734                        next;
 735                } elsif (/^From:\s*(.+)\s*$/i) {
 736                        $sender = $1;
 737                        next;
 738                } elsif (/^(?:To|Cc|Bcc):/i) {
 739                        print __("To/Cc/Bcc fields are not interpreted yet, they have been ignored\n");
 740                        next;
 741                }
 742                print $c2 $_;
 743        }
 744        close $c;
 745        close $c2;
 746
 747        if ($summary_empty) {
 748                print __("Summary email is empty, skipping it\n");
 749                $compose = -1;
 750        }
 751} elsif ($annotate) {
 752        do_edit(@files);
 753}
 754
 755sub ask {
 756        my ($prompt, %arg) = @_;
 757        my $valid_re = $arg{valid_re};
 758        my $default = $arg{default};
 759        my $confirm_only = $arg{confirm_only};
 760        my $resp;
 761        my $i = 0;
 762        return defined $default ? $default : undef
 763                unless defined $term->IN and defined fileno($term->IN) and
 764                       defined $term->OUT and defined fileno($term->OUT);
 765        while ($i++ < 10) {
 766                $resp = $term->readline($prompt);
 767                if (!defined $resp) { # EOF
 768                        print "\n";
 769                        return defined $default ? $default : undef;
 770                }
 771                if ($resp eq '' and defined $default) {
 772                        return $default;
 773                }
 774                if (!defined $valid_re or $resp =~ /$valid_re/) {
 775                        return $resp;
 776                }
 777                if ($confirm_only) {
 778                        my $yesno = $term->readline(
 779                                # TRANSLATORS: please keep [y/N] as is.
 780                                sprintf(__("Are you sure you want to use <%s> [y/N]? "), $resp));
 781                        if (defined $yesno && $yesno =~ /y/i) {
 782                                return $resp;
 783                        }
 784                }
 785        }
 786        return;
 787}
 788
 789my %broken_encoding;
 790
 791sub file_declares_8bit_cte {
 792        my $fn = shift;
 793        open (my $fh, '<', $fn);
 794        while (my $line = <$fh>) {
 795                last if ($line =~ /^$/);
 796                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 797        }
 798        close $fh;
 799        return 0;
 800}
 801
 802foreach my $f (@files) {
 803        next unless (body_or_subject_has_nonascii($f)
 804                     && !file_declares_8bit_cte($f));
 805        $broken_encoding{$f} = 1;
 806}
 807
 808if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 809        print __("The following files are 8bit, but do not declare " .
 810                 "a Content-Transfer-Encoding.\n");
 811        foreach my $f (sort keys %broken_encoding) {
 812                print "    $f\n";
 813        }
 814        $auto_8bit_encoding = ask(__("Which 8bit encoding should I declare [UTF-8]? "),
 815                                  valid_re => qr/.{4}/, confirm_only => 1,
 816                                  default => "UTF-8");
 817}
 818
 819if (!$force) {
 820        for my $f (@files) {
 821                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 822                        die sprintf(__("Refusing to send because the patch\n\t%s\n"
 823                                . "has the template subject '*** SUBJECT HERE ***'. "
 824                                . "Pass --force if you really want to send.\n"), $f);
 825                }
 826        }
 827}
 828
 829if (defined $sender) {
 830        $sender =~ s/^\s+|\s+$//g;
 831        ($sender) = expand_aliases($sender);
 832} else {
 833        $sender = $repoauthor || $repocommitter || '';
 834}
 835
 836# $sender could be an already sanitized address
 837# (e.g. sendemail.from could be manually sanitized by user).
 838# But it's a no-op to run sanitize_address on an already sanitized address.
 839$sender = sanitize_address($sender);
 840
 841my $to_whom = __("To whom should the emails be sent (if anyone)?");
 842my $prompting = 0;
 843if (!@initial_to && !defined $to_cmd) {
 844        my $to = ask("$to_whom ",
 845                     default => "",
 846                     valid_re => qr/\@.*\./, confirm_only => 1);
 847        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 848        $prompting++;
 849}
 850
 851sub expand_aliases {
 852        return map { expand_one_alias($_) } @_;
 853}
 854
 855my %EXPANDED_ALIASES;
 856sub expand_one_alias {
 857        my $alias = shift;
 858        if ($EXPANDED_ALIASES{$alias}) {
 859                die sprintf(__("fatal: alias '%s' expands to itself\n"), $alias);
 860        }
 861        local $EXPANDED_ALIASES{$alias} = 1;
 862        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 863}
 864
 865@initial_to = process_address_list(@initial_to);
 866@initial_cc = process_address_list(@initial_cc);
 867@bcclist = process_address_list(@bcclist);
 868
 869if ($thread && !defined $initial_reply_to && $prompting) {
 870        $initial_reply_to = ask(
 871                __("Message-ID to be used as In-Reply-To for the first email (if any)? "),
 872                default => "",
 873                valid_re => qr/\@.*\./, confirm_only => 1);
 874}
 875if (defined $initial_reply_to) {
 876        $initial_reply_to =~ s/^\s*<?//;
 877        $initial_reply_to =~ s/>?\s*$//;
 878        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 879}
 880
 881if (!defined $smtp_server) {
 882        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 883                if (-x $_) {
 884                        $smtp_server = $_;
 885                        last;
 886                }
 887        }
 888        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 889}
 890
 891if ($compose && $compose > 0) {
 892        @files = ($compose_filename . ".final", @files);
 893}
 894
 895# Variables we set as part of the loop over files
 896our ($message_id, %mail, $subject, $reply_to, $references, $message,
 897        $needs_confirm, $message_num, $ask_default);
 898
 899sub extract_valid_address {
 900        my $address = shift;
 901        my $local_part_regexp = qr/[^<>"\s@]+/;
 902        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 903
 904        # check for a local address:
 905        return $address if ($address =~ /^($local_part_regexp)$/);
 906
 907        $address =~ s/^\s*<(.*)>\s*$/$1/;
 908        if ($have_email_valid) {
 909                return scalar Email::Valid->address($address);
 910        }
 911
 912        # less robust/correct than the monster regexp in Email::Valid,
 913        # but still does a 99% job, and one less dependency
 914        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 915        return;
 916}
 917
 918sub extract_valid_address_or_die {
 919        my $address = shift;
 920        $address = extract_valid_address($address);
 921        die sprintf(__("error: unable to extract a valid address from: %s\n"), $address)
 922                if !$address;
 923        return $address;
 924}
 925
 926sub validate_address {
 927        my $address = shift;
 928        while (!extract_valid_address($address)) {
 929                printf STDERR __("error: unable to extract a valid address from: %s\n"), $address;
 930                # TRANSLATORS: Make sure to include [q] [d] [e] in your
 931                # translation. The program will only accept English input
 932                # at this point.
 933                $_ = ask(__("What to do with this address? ([q]uit|[d]rop|[e]dit): "),
 934                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 935                        default => 'q');
 936                if (/^d/i) {
 937                        return undef;
 938                } elsif (/^q/i) {
 939                        cleanup_compose_files();
 940                        exit(0);
 941                }
 942                $address = ask("$to_whom ",
 943                        default => "",
 944                        valid_re => qr/\@.*\./, confirm_only => 1);
 945        }
 946        return $address;
 947}
 948
 949sub validate_address_list {
 950        return (grep { defined $_ }
 951                map { validate_address($_) } @_);
 952}
 953
 954# Usually don't need to change anything below here.
 955
 956# we make a "fake" message id by taking the current number
 957# of seconds since the beginning of Unix time and tacking on
 958# a random number to the end, in case we are called quicker than
 959# 1 second since the last time we were called.
 960
 961# We'll setup a template for the message id, using the "from" address:
 962
 963my ($message_id_stamp, $message_id_serial);
 964sub make_message_id {
 965        my $uniq;
 966        if (!defined $message_id_stamp) {
 967                $message_id_stamp = strftime("%Y%m%d%H%M%S.$$", gmtime(time));
 968                $message_id_serial = 0;
 969        }
 970        $message_id_serial++;
 971        $uniq = "$message_id_stamp-$message_id_serial";
 972
 973        my $du_part;
 974        for ($sender, $repocommitter, $repoauthor) {
 975                $du_part = extract_valid_address(sanitize_address($_));
 976                last if (defined $du_part and $du_part ne '');
 977        }
 978        if (not defined $du_part or $du_part eq '') {
 979                require Sys::Hostname;
 980                $du_part = 'user@' . Sys::Hostname::hostname();
 981        }
 982        my $message_id_template = "<%s-%s>";
 983        $message_id = sprintf($message_id_template, $uniq, $du_part);
 984        #print "new message id = $message_id\n"; # Was useful for debugging
 985}
 986
 987
 988
 989$time = time - scalar $#files;
 990
 991sub unquote_rfc2047 {
 992        local ($_) = @_;
 993        my $charset;
 994        my $sep = qr/[ \t]+/;
 995        s{$re_encoded_word(?:$sep$re_encoded_word)*}{
 996                my @words = split $sep, $&;
 997                foreach (@words) {
 998                        m/$re_encoded_word/;
 999                        $charset = $1;
1000                        my $encoding = $2;
1001                        my $text = $3;
1002                        if ($encoding eq 'q' || $encoding eq 'Q') {
1003                                $_ = $text;
1004                                s/_/ /g;
1005                                s/=([0-9A-F]{2})/chr(hex($1))/egi;
1006                        } else {
1007                                # other encodings not supported yet
1008                        }
1009                }
1010                join '', @words;
1011        }eg;
1012        return wantarray ? ($_, $charset) : $_;
1013}
1014
1015sub quote_rfc2047 {
1016        local $_ = shift;
1017        my $encoding = shift || 'UTF-8';
1018        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
1019        s/(.*)/=\?$encoding\?q\?$1\?=/;
1020        return $_;
1021}
1022
1023sub is_rfc2047_quoted {
1024        my $s = shift;
1025        length($s) <= 75 &&
1026        $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o;
1027}
1028
1029sub subject_needs_rfc2047_quoting {
1030        my $s = shift;
1031
1032        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
1033}
1034
1035sub quote_subject {
1036        local $subject = shift;
1037        my $encoding = shift || 'UTF-8';
1038
1039        if (subject_needs_rfc2047_quoting($subject)) {
1040                return quote_rfc2047($subject, $encoding);
1041        }
1042        return $subject;
1043}
1044
1045# use the simplest quoting being able to handle the recipient
1046sub sanitize_address {
1047        my ($recipient) = @_;
1048
1049        # remove garbage after email address
1050        $recipient =~ s/(.*>).*$/$1/;
1051
1052        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
1053
1054        if (not $recipient_name) {
1055                return $recipient;
1056        }
1057
1058        # if recipient_name is already quoted, do nothing
1059        if (is_rfc2047_quoted($recipient_name)) {
1060                return $recipient;
1061        }
1062
1063        # remove non-escaped quotes
1064        $recipient_name =~ s/(^|[^\\])"/$1/g;
1065
1066        # rfc2047 is needed if a non-ascii char is included
1067        if ($recipient_name =~ /[^[:ascii:]]/) {
1068                $recipient_name = quote_rfc2047($recipient_name);
1069        }
1070
1071        # double quotes are needed if specials or CTLs are included
1072        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
1073                $recipient_name =~ s/([\\\r])/\\$1/g;
1074                $recipient_name = qq["$recipient_name"];
1075        }
1076
1077        return "$recipient_name $recipient_addr";
1078
1079}
1080
1081sub sanitize_address_list {
1082        return (map { sanitize_address($_) } @_);
1083}
1084
1085sub process_address_list {
1086        my @addr_list = map { parse_address_line($_) } @_;
1087        @addr_list = expand_aliases(@addr_list);
1088        @addr_list = sanitize_address_list(@addr_list);
1089        @addr_list = validate_address_list(@addr_list);
1090        return @addr_list;
1091}
1092
1093# Returns the local Fully Qualified Domain Name (FQDN) if available.
1094#
1095# Tightly configured MTAa require that a caller sends a real DNS
1096# domain name that corresponds the IP address in the HELO/EHLO
1097# handshake. This is used to verify the connection and prevent
1098# spammers from trying to hide their identity. If the DNS and IP don't
1099# match, the receiveing MTA may deny the connection.
1100#
1101# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1102#
1103# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1104# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1105#
1106# This maildomain*() code is based on ideas in Perl library Test::Reporter
1107# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1108
1109sub valid_fqdn {
1110        my $domain = shift;
1111        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1112}
1113
1114sub maildomain_net {
1115        my $maildomain;
1116
1117        if (eval { require Net::Domain; 1 }) {
1118                my $domain = Net::Domain::domainname();
1119                $maildomain = $domain if valid_fqdn($domain);
1120        }
1121
1122        return $maildomain;
1123}
1124
1125sub maildomain_mta {
1126        my $maildomain;
1127
1128        if (eval { require Net::SMTP; 1 }) {
1129                for my $host (qw(mailhost localhost)) {
1130                        my $smtp = Net::SMTP->new($host);
1131                        if (defined $smtp) {
1132                                my $domain = $smtp->domain;
1133                                $smtp->quit;
1134
1135                                $maildomain = $domain if valid_fqdn($domain);
1136
1137                                last if $maildomain;
1138                        }
1139                }
1140        }
1141
1142        return $maildomain;
1143}
1144
1145sub maildomain {
1146        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1147}
1148
1149sub smtp_host_string {
1150        if (defined $smtp_server_port) {
1151                return "$smtp_server:$smtp_server_port";
1152        } else {
1153                return $smtp_server;
1154        }
1155}
1156
1157# Returns 1 if authentication succeeded or was not necessary
1158# (smtp_user was not specified), and 0 otherwise.
1159
1160sub smtp_auth_maybe {
1161        if (!defined $smtp_authuser || $auth) {
1162                return 1;
1163        }
1164
1165        # Workaround AUTH PLAIN/LOGIN interaction defect
1166        # with Authen::SASL::Cyrus
1167        eval {
1168                require Authen::SASL;
1169                Authen::SASL->import(qw(Perl));
1170        };
1171
1172        # Check mechanism naming as defined in:
1173        # https://tools.ietf.org/html/rfc4422#page-8
1174        if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
1175                die "invalid smtp auth: '${smtp_auth}'";
1176        }
1177
1178        # TODO: Authentication may fail not because credentials were
1179        # invalid but due to other reasons, in which we should not
1180        # reject credentials.
1181        $auth = Git::credential({
1182                'protocol' => 'smtp',
1183                'host' => smtp_host_string(),
1184                'username' => $smtp_authuser,
1185                # if there's no password, "git credential fill" will
1186                # give us one, otherwise it'll just pass this one.
1187                'password' => $smtp_authpass
1188        }, sub {
1189                my $cred = shift;
1190
1191                if ($smtp_auth) {
1192                        my $sasl = Authen::SASL->new(
1193                                mechanism => $smtp_auth,
1194                                callback => {
1195                                        user => $cred->{'username'},
1196                                        pass => $cred->{'password'},
1197                                        authname => $cred->{'username'},
1198                                }
1199                        );
1200
1201                        return !!$smtp->auth($sasl);
1202                }
1203
1204                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1205        });
1206
1207        return $auth;
1208}
1209
1210sub ssl_verify_params {
1211        eval {
1212                require IO::Socket::SSL;
1213                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1214        };
1215        if ($@) {
1216                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1217                return;
1218        }
1219
1220        if (!defined $smtp_ssl_cert_path) {
1221                # use the OpenSSL defaults
1222                return (SSL_verify_mode => SSL_VERIFY_PEER());
1223        }
1224
1225        if ($smtp_ssl_cert_path eq "") {
1226                return (SSL_verify_mode => SSL_VERIFY_NONE());
1227        } elsif (-d $smtp_ssl_cert_path) {
1228                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1229                        SSL_ca_path => $smtp_ssl_cert_path);
1230        } elsif (-f $smtp_ssl_cert_path) {
1231                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1232                        SSL_ca_file => $smtp_ssl_cert_path);
1233        } else {
1234                die sprintf(__("CA path \"%s\" does not exist"), $smtp_ssl_cert_path);
1235        }
1236}
1237
1238sub file_name_is_absolute {
1239        my ($path) = @_;
1240
1241        # msys does not grok DOS drive-prefixes
1242        if ($^O eq 'msys') {
1243                return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#)
1244        }
1245
1246        require File::Spec::Functions;
1247        return File::Spec::Functions::file_name_is_absolute($path);
1248}
1249
1250# Returns 1 if the message was sent, and 0 otherwise.
1251# In actuality, the whole program dies when there
1252# is an error sending a message.
1253
1254sub send_message {
1255        my @recipients = unique_email_list(@to);
1256        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1257                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1258                    }
1259               @cc);
1260        my $to = join (",\n\t", @recipients);
1261        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1262        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1263        my $date = format_2822_time($time++);
1264        my $gitversion = '@@GIT_VERSION@@';
1265        if ($gitversion =~ m/..GIT_VERSION../) {
1266            $gitversion = Git::version();
1267        }
1268
1269        my $cc = join(",\n\t", unique_email_list(@cc));
1270        my $ccline = "";
1271        if ($cc ne '') {
1272                $ccline = "\nCc: $cc";
1273        }
1274        make_message_id() unless defined($message_id);
1275
1276        my $header = "From: $sender
1277To: $to${ccline}
1278Subject: $subject
1279Date: $date
1280Message-Id: $message_id
1281";
1282        if ($use_xmailer) {
1283                $header .= "X-Mailer: git-send-email $gitversion\n";
1284        }
1285        if ($reply_to) {
1286
1287                $header .= "In-Reply-To: $reply_to\n";
1288                $header .= "References: $references\n";
1289        }
1290        if (@xh) {
1291                $header .= join("\n", @xh) . "\n";
1292        }
1293
1294        my @sendmail_parameters = ('-i', @recipients);
1295        my $raw_from = $sender;
1296        if (defined $envelope_sender && $envelope_sender ne "auto") {
1297                $raw_from = $envelope_sender;
1298        }
1299        $raw_from = extract_valid_address($raw_from);
1300        unshift (@sendmail_parameters,
1301                        '-f', $raw_from) if(defined $envelope_sender);
1302
1303        if ($needs_confirm && !$dry_run) {
1304                print "\n$header\n";
1305                if ($needs_confirm eq "inform") {
1306                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1307                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1308                        print __ <<EOF ;
1309    The Cc list above has been expanded by additional
1310    addresses found in the patch commit message. By default
1311    send-email prompts before sending whenever this occurs.
1312    This behavior is controlled by the sendemail.confirm
1313    configuration setting.
1314
1315    For additional information, run 'git send-email --help'.
1316    To retain the current behavior, but squelch this message,
1317    run 'git config --global sendemail.confirm auto'.
1318
1319EOF
1320                }
1321                # TRANSLATORS: Make sure to include [y] [n] [q] [a] in your
1322                # translation. The program will only accept English input
1323                # at this point.
1324                $_ = ask(__("Send this email? ([y]es|[n]o|[q]uit|[a]ll): "),
1325                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1326                         default => $ask_default);
1327                die __("Send this email reply required") unless defined $_;
1328                if (/^n/i) {
1329                        return 0;
1330                } elsif (/^q/i) {
1331                        cleanup_compose_files();
1332                        exit(0);
1333                } elsif (/^a/i) {
1334                        $confirm = 'never';
1335                }
1336        }
1337
1338        unshift (@sendmail_parameters, @smtp_server_options);
1339
1340        if ($dry_run) {
1341                # We don't want to send the email.
1342        } elsif (file_name_is_absolute($smtp_server)) {
1343                my $pid = open my $sm, '|-';
1344                defined $pid or die $!;
1345                if (!$pid) {
1346                        exec($smtp_server, @sendmail_parameters) or die $!;
1347                }
1348                print $sm "$header\n$message";
1349                close $sm or die $!;
1350        } else {
1351
1352                if (!defined $smtp_server) {
1353                        die __("The required SMTP server is not properly defined.")
1354                }
1355
1356                require Net::SMTP;
1357                my $use_net_smtp_ssl = version->parse($Net::SMTP::VERSION) < version->parse("2.34");
1358                $smtp_domain ||= maildomain();
1359
1360                if ($smtp_encryption eq 'ssl') {
1361                        $smtp_server_port ||= 465; # ssmtp
1362                        require IO::Socket::SSL;
1363
1364                        # Suppress "variable accessed once" warning.
1365                        {
1366                                no warnings 'once';
1367                                $IO::Socket::SSL::DEBUG = 1;
1368                        }
1369
1370                        # Net::SMTP::SSL->new() does not forward any SSL options
1371                        IO::Socket::SSL::set_client_defaults(
1372                                ssl_verify_params());
1373
1374                        if ($use_net_smtp_ssl) {
1375                                require Net::SMTP::SSL;
1376                                $smtp ||= Net::SMTP::SSL->new($smtp_server,
1377                                                              Hello => $smtp_domain,
1378                                                              Port => $smtp_server_port,
1379                                                              Debug => $debug_net_smtp);
1380                        }
1381                        else {
1382                                $smtp ||= Net::SMTP->new($smtp_server,
1383                                                         Hello => $smtp_domain,
1384                                                         Port => $smtp_server_port,
1385                                                         Debug => $debug_net_smtp,
1386                                                         SSL => 1);
1387                        }
1388                }
1389                else {
1390                        $smtp_server_port ||= 25;
1391                        $smtp ||= Net::SMTP->new($smtp_server,
1392                                                 Hello => $smtp_domain,
1393                                                 Debug => $debug_net_smtp,
1394                                                 Port => $smtp_server_port);
1395                        if ($smtp_encryption eq 'tls' && $smtp) {
1396                                if ($use_net_smtp_ssl) {
1397                                        $smtp->command('STARTTLS');
1398                                        $smtp->response();
1399                                        if ($smtp->code != 220) {
1400                                                die sprintf(__("Server does not support STARTTLS! %s"), $smtp->message);
1401                                        }
1402                                        require Net::SMTP::SSL;
1403                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1404                                                                          ssl_verify_params())
1405                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1406                                }
1407                                else {
1408                                        $smtp->starttls(ssl_verify_params())
1409                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1410                                }
1411                                $smtp_encryption = '';
1412                                # Send EHLO again to receive fresh
1413                                # supported commands
1414                                $smtp->hello($smtp_domain);
1415                        }
1416                }
1417
1418                if (!$smtp) {
1419                        die __("Unable to initialize SMTP properly. Check config and use --smtp-debug."),
1420                            " VALUES: server=$smtp_server ",
1421                            "encryption=$smtp_encryption ",
1422                            "hello=$smtp_domain",
1423                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1424                }
1425
1426                smtp_auth_maybe or die $smtp->message;
1427
1428                $smtp->mail( $raw_from ) or die $smtp->message;
1429                $smtp->to( @recipients ) or die $smtp->message;
1430                $smtp->data or die $smtp->message;
1431                $smtp->datasend("$header\n") or die $smtp->message;
1432                my @lines = split /^/, $message;
1433                foreach my $line (@lines) {
1434                        $smtp->datasend("$line") or die $smtp->message;
1435                }
1436                $smtp->dataend() or die $smtp->message;
1437                $smtp->code =~ /250|200/ or die sprintf(__("Failed to send %s\n"), $subject).$smtp->message;
1438        }
1439        if ($quiet) {
1440                printf($dry_run ? __("Dry-Sent %s\n") : __("Sent %s\n"), $subject);
1441        } else {
1442                print($dry_run ? __("Dry-OK. Log says:\n") : __("OK. Log says:\n"));
1443                if (!file_name_is_absolute($smtp_server)) {
1444                        print "Server: $smtp_server\n";
1445                        print "MAIL FROM:<$raw_from>\n";
1446                        foreach my $entry (@recipients) {
1447                            print "RCPT TO:<$entry>\n";
1448                        }
1449                } else {
1450                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1451                }
1452                print $header, "\n";
1453                if ($smtp) {
1454                        print __("Result: "), $smtp->code, ' ',
1455                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1456                } else {
1457                        print __("Result: OK\n");
1458                }
1459        }
1460
1461        return 1;
1462}
1463
1464$reply_to = $initial_reply_to;
1465$references = $initial_reply_to || '';
1466$subject = $initial_subject;
1467$message_num = 0;
1468
1469foreach my $t (@files) {
1470        open my $fh, "<", $t or die sprintf(__("can't open file %s"), $t);
1471
1472        my $author = undef;
1473        my $sauthor = undef;
1474        my $author_encoding;
1475        my $has_content_type;
1476        my $body_encoding;
1477        my $xfer_encoding;
1478        my $has_mime_version;
1479        @to = ();
1480        @cc = ();
1481        @xh = ();
1482        my $input_format = undef;
1483        my @header = ();
1484        $message = "";
1485        $message_num++;
1486        # First unfold multiline header fields
1487        while(<$fh>) {
1488                last if /^\s*$/;
1489                if (/^\s+\S/ and @header) {
1490                        chomp($header[$#header]);
1491                        s/^\s+/ /;
1492                        $header[$#header] .= $_;
1493            } else {
1494                        push(@header, $_);
1495                }
1496        }
1497        # Now parse the header
1498        foreach(@header) {
1499                if (/^From /) {
1500                        $input_format = 'mbox';
1501                        next;
1502                }
1503                chomp;
1504                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1505                        $input_format = 'mbox';
1506                }
1507
1508                if (defined $input_format && $input_format eq 'mbox') {
1509                        if (/^Subject:\s+(.*)$/i) {
1510                                $subject = $1;
1511                        }
1512                        elsif (/^From:\s+(.*)$/i) {
1513                                ($author, $author_encoding) = unquote_rfc2047($1);
1514                                $sauthor = sanitize_address($author);
1515                                next if $suppress_cc{'author'};
1516                                next if $suppress_cc{'self'} and $sauthor eq $sender;
1517                                printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1518                                        $1, $_) unless $quiet;
1519                                push @cc, $1;
1520                        }
1521                        elsif (/^To:\s+(.*)$/i) {
1522                                foreach my $addr (parse_address_line($1)) {
1523                                        printf(__("(mbox) Adding to: %s from line '%s'\n"),
1524                                                $addr, $_) unless $quiet;
1525                                        push @to, $addr;
1526                                }
1527                        }
1528                        elsif (/^Cc:\s+(.*)$/i) {
1529                                foreach my $addr (parse_address_line($1)) {
1530                                        my $qaddr = unquote_rfc2047($addr);
1531                                        my $saddr = sanitize_address($qaddr);
1532                                        if ($saddr eq $sender) {
1533                                                next if ($suppress_cc{'self'});
1534                                        } else {
1535                                                next if ($suppress_cc{'cc'});
1536                                        }
1537                                        printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1538                                                $addr, $_) unless $quiet;
1539                                        push @cc, $addr;
1540                                }
1541                        }
1542                        elsif (/^Content-type:/i) {
1543                                $has_content_type = 1;
1544                                if (/charset="?([^ "]+)/) {
1545                                        $body_encoding = $1;
1546                                }
1547                                push @xh, $_;
1548                        }
1549                        elsif (/^MIME-Version/i) {
1550                                $has_mime_version = 1;
1551                                push @xh, $_;
1552                        }
1553                        elsif (/^Message-Id: (.*)/i) {
1554                                $message_id = $1;
1555                        }
1556                        elsif (/^Content-Transfer-Encoding: (.*)/i) {
1557                                $xfer_encoding = $1 if not defined $xfer_encoding;
1558                        }
1559                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1560                                push @xh, $_;
1561                        }
1562
1563                } else {
1564                        # In the traditional
1565                        # "send lots of email" format,
1566                        # line 1 = cc
1567                        # line 2 = subject
1568                        # So let's support that, too.
1569                        $input_format = 'lots';
1570                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1571                                printf(__("(non-mbox) Adding cc: %s from line '%s'\n"),
1572                                        $_, $_) unless $quiet;
1573                                push @cc, $_;
1574                        } elsif (!defined $subject) {
1575                                $subject = $_;
1576                        }
1577                }
1578        }
1579        # Now parse the message body
1580        while(<$fh>) {
1581                $message .=  $_;
1582                if (/^(Signed-off-by|Cc): ([^>]*>?)/i) {
1583                        chomp;
1584                        my ($what, $c) = ($1, $2);
1585                        chomp $c;
1586                        my $sc = sanitize_address($c);
1587                        if ($sc eq $sender) {
1588                                next if ($suppress_cc{'self'});
1589                        } else {
1590                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1591                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1592                        }
1593                        push @cc, $c;
1594                        printf(__("(body) Adding cc: %s from line '%s'\n"),
1595                                $c, $_) unless $quiet;
1596                }
1597        }
1598        close $fh;
1599
1600        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1601                if defined $to_cmd;
1602        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1603                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1604
1605        if ($broken_encoding{$t} && !$has_content_type) {
1606                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1607                $has_content_type = 1;
1608                push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding";
1609                $body_encoding = $auto_8bit_encoding;
1610        }
1611
1612        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1613                $subject = quote_subject($subject, $auto_8bit_encoding);
1614        }
1615
1616        if (defined $sauthor and $sauthor ne $sender) {
1617                $message = "From: $author\n\n$message";
1618                if (defined $author_encoding) {
1619                        if ($has_content_type) {
1620                                if ($body_encoding eq $author_encoding) {
1621                                        # ok, we already have the right encoding
1622                                }
1623                                else {
1624                                        # uh oh, we should re-encode
1625                                }
1626                        }
1627                        else {
1628                                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1629                                $has_content_type = 1;
1630                                push @xh,
1631                                  "Content-Type: text/plain; charset=$author_encoding";
1632                        }
1633                }
1634        }
1635        if (defined $target_xfer_encoding) {
1636                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1637                $message = apply_transfer_encoding(
1638                        $message, $xfer_encoding, $target_xfer_encoding);
1639                $xfer_encoding = $target_xfer_encoding;
1640        }
1641        if (defined $xfer_encoding) {
1642                push @xh, "Content-Transfer-Encoding: $xfer_encoding";
1643        }
1644        if (defined $xfer_encoding or $has_content_type) {
1645                unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version;
1646        }
1647
1648        $needs_confirm = (
1649                $confirm eq "always" or
1650                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1651                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1652        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1653
1654        @to = process_address_list(@to);
1655        @cc = process_address_list(@cc);
1656
1657        @to = (@initial_to, @to);
1658        @cc = (@initial_cc, @cc);
1659
1660        if ($message_num == 1) {
1661                if (defined $cover_cc and $cover_cc) {
1662                        @initial_cc = @cc;
1663                }
1664                if (defined $cover_to and $cover_to) {
1665                        @initial_to = @to;
1666                }
1667        }
1668
1669        my $message_was_sent = send_message();
1670
1671        # set up for the next message
1672        if ($thread && $message_was_sent &&
1673                ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
1674                $message_num == 1)) {
1675                $reply_to = $message_id;
1676                if (length $references > 0) {
1677                        $references .= "\n $message_id";
1678                } else {
1679                        $references = "$message_id";
1680                }
1681        }
1682        $message_id = undef;
1683}
1684
1685# Execute a command (e.g. $to_cmd) to get a list of email addresses
1686# and return a results array
1687sub recipients_cmd {
1688        my ($prefix, $what, $cmd, $file) = @_;
1689
1690        my @addresses = ();
1691        open my $fh, "-|", "$cmd \Q$file\E"
1692            or die sprintf(__("(%s) Could not execute '%s'"), $prefix, $cmd);
1693        while (my $address = <$fh>) {
1694                $address =~ s/^\s*//g;
1695                $address =~ s/\s*$//g;
1696                $address = sanitize_address($address);
1697                next if ($address eq $sender and $suppress_cc{'self'});
1698                push @addresses, $address;
1699                printf(__("(%s) Adding %s: %s from: '%s'\n"),
1700                       $prefix, $what, $address, $cmd) unless $quiet;
1701                }
1702        close $fh
1703            or die sprintf(__("(%s) failed to close pipe to '%s'"), $prefix, $cmd);
1704        return @addresses;
1705}
1706
1707cleanup_compose_files();
1708
1709sub cleanup_compose_files {
1710        unlink($compose_filename, $compose_filename . ".final") if $compose;
1711}
1712
1713$smtp->quit if $smtp;
1714
1715sub apply_transfer_encoding {
1716        my $message = shift;
1717        my $from = shift;
1718        my $to = shift;
1719
1720        return $message if ($from eq $to and $from ne '7bit');
1721
1722        require MIME::QuotedPrint;
1723        require MIME::Base64;
1724
1725        $message = MIME::QuotedPrint::decode($message)
1726                if ($from eq 'quoted-printable');
1727        $message = MIME::Base64::decode($message)
1728                if ($from eq 'base64');
1729
1730        die __("cannot send message as 7bit")
1731                if ($to eq '7bit' and $message =~ /[^[:ascii:]]/);
1732        return $message
1733                if ($to eq '7bit' or $to eq '8bit');
1734        return MIME::QuotedPrint::encode($message, "\n", 0)
1735                if ($to eq 'quoted-printable');
1736        return MIME::Base64::encode($message, "\n")
1737                if ($to eq 'base64');
1738        die __("invalid transfer encoding");
1739}
1740
1741sub unique_email_list {
1742        my %seen;
1743        my @emails;
1744
1745        foreach my $entry (@_) {
1746                my $clean = extract_valid_address_or_die($entry);
1747                $seen{$clean} ||= 0;
1748                next if $seen{$clean}++;
1749                push @emails, $entry;
1750        }
1751        return @emails;
1752}
1753
1754sub validate_patch {
1755        my $fn = shift;
1756        open(my $fh, '<', $fn)
1757                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1758        while (my $line = <$fh>) {
1759                if (length($line) > 998) {
1760                        return sprintf(__("%s: patch contains a line longer than 998 characters"), $.);
1761                }
1762        }
1763        return;
1764}
1765
1766sub handle_backup {
1767        my ($last, $lastlen, $file, $known_suffix) = @_;
1768        my ($suffix, $skip);
1769
1770        $skip = 0;
1771        if (defined $last &&
1772            ($lastlen < length($file)) &&
1773            (substr($file, 0, $lastlen) eq $last) &&
1774            ($suffix = substr($file, $lastlen)) !~ /^[a-z0-9]/i) {
1775                if (defined $known_suffix && $suffix eq $known_suffix) {
1776                        printf(__("Skipping %s with backup suffix '%s'.\n"), $file, $known_suffix);
1777                        $skip = 1;
1778                } else {
1779                        # TRANSLATORS: please keep "[y|N]" as is.
1780                        my $answer = ask(sprintf(__("Do you really want to send %s? [y|N]: "), $file),
1781                                         valid_re => qr/^(?:y|n)/i,
1782                                         default => 'n');
1783                        $skip = ($answer ne 'y');
1784                        if ($skip) {
1785                                $known_suffix = $suffix;
1786                        }
1787                }
1788        }
1789        return ($skip, $known_suffix);
1790}
1791
1792sub handle_backup_files {
1793        my @file = @_;
1794        my ($last, $lastlen, $known_suffix, $skip, @result);
1795        for my $file (@file) {
1796                ($skip, $known_suffix) = handle_backup($last, $lastlen,
1797                                                       $file, $known_suffix);
1798                push @result, $file unless $skip;
1799                $last = $file;
1800                $lastlen = length($file);
1801        }
1802        return @result;
1803}
1804
1805sub file_has_nonascii {
1806        my $fn = shift;
1807        open(my $fh, '<', $fn)
1808                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1809        while (my $line = <$fh>) {
1810                return 1 if $line =~ /[^[:ascii:]]/;
1811        }
1812        return 0;
1813}
1814
1815sub body_or_subject_has_nonascii {
1816        my $fn = shift;
1817        open(my $fh, '<', $fn)
1818                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1819        while (my $line = <$fh>) {
1820                last if $line =~ /^$/;
1821                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1822        }
1823        while (my $line = <$fh>) {
1824                return 1 if $line =~ /[^[:ascii:]]/;
1825        }
1826        return 0;
1827}