git-send-email.perlon commit for-each-ref: Do not lookup objects when they will not be used (b7dd2d2)
   1#!/usr/bin/perl -w
   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 strict;
  20use warnings;
  21use Term::ReadLine;
  22use Getopt::Long;
  23use Text::ParseWords;
  24use Data::Dumper;
  25use Term::ANSIColor;
  26use File::Temp qw/ tempdir tempfile /;
  27use Error qw(:try);
  28use Git;
  29
  30Getopt::Long::Configure qw/ pass_through /;
  31
  32package FakeTerm;
  33sub new {
  34        my ($class, $reason) = @_;
  35        return bless \$reason, shift;
  36}
  37sub readline {
  38        my $self = shift;
  39        die "Cannot use readline on FakeTerm: $$self";
  40}
  41package main;
  42
  43
  44sub usage {
  45        print <<EOT;
  46git send-email [options] <file | directory | rev-list options >
  47
  48  Composing:
  49    --from                  <str>  * Email From:
  50    --to                    <str>  * Email To:
  51    --cc                    <str>  * Email Cc:
  52    --bcc                   <str>  * Email Bcc:
  53    --subject               <str>  * Email "Subject:"
  54    --in-reply-to           <str>  * Email "In-Reply-To:"
  55    --annotate                     * Review each patch that will be sent in an editor.
  56    --compose                      * Open an editor for introduction.
  57
  58  Sending:
  59    --envelope-sender       <str>  * Email envelope sender.
  60    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  61                                     is optional. Default 'localhost'.
  62    --smtp-server-port      <int>  * Outgoing SMTP server port.
  63    --smtp-user             <str>  * Username for SMTP-AUTH.
  64    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  65    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  66    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  67
  68  Automating:
  69    --identity              <str>  * Use the sendemail.<id> options.
  70    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  71    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  72    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  73    --[no-]suppress-from           * Send to self. Default off.
  74    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default on.
  75    --[no-]thread                  * Use In-Reply-To: field. Default on.
  76
  77  Administering:
  78    --confirm               <str>  * Confirm recipients before sending;
  79                                     auto, cc, compose, always, or never.
  80    --quiet                        * Output one line of info per email.
  81    --dry-run                      * Don't actually send the emails.
  82    --[no-]validate                * Perform patch sanity checks. Default on.
  83    --[no-]format-patch            * understand any non optional arguments as
  84                                     `git format-patch` ones.
  85
  86EOT
  87        exit(1);
  88}
  89
  90# most mail servers generate the Date: header, but not all...
  91sub format_2822_time {
  92        my ($time) = @_;
  93        my @localtm = localtime($time);
  94        my @gmttm = gmtime($time);
  95        my $localmin = $localtm[1] + $localtm[2] * 60;
  96        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
  97        if ($localtm[0] != $gmttm[0]) {
  98                die "local zone differs from GMT by a non-minute interval\n";
  99        }
 100        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 101                $localmin += 1440;
 102        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 103                $localmin -= 1440;
 104        } elsif ($gmttm[6] != $localtm[6]) {
 105                die "local time offset greater than or equal to 24 hours\n";
 106        }
 107        my $offset = $localmin - $gmtmin;
 108        my $offhour = $offset / 60;
 109        my $offmin = abs($offset % 60);
 110        if (abs($offhour) >= 24) {
 111                die ("local time offset greater than or equal to 24 hours\n");
 112        }
 113
 114        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 115                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 116                       $localtm[3],
 117                       qw(Jan Feb Mar Apr May Jun
 118                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 119                       $localtm[5]+1900,
 120                       $localtm[2],
 121                       $localtm[1],
 122                       $localtm[0],
 123                       ($offset >= 0) ? '+' : '-',
 124                       abs($offhour),
 125                       $offmin,
 126                       );
 127}
 128
 129my $have_email_valid = eval { require Email::Valid; 1 };
 130my $have_mail_address = eval { require Mail::Address; 1 };
 131my $smtp;
 132my $auth;
 133
 134sub unique_email_list(@);
 135sub cleanup_compose_files();
 136
 137# Variables we fill in automatically, or via prompting:
 138my (@to,@cc,@initial_cc,@bcclist,@xh,
 139        $initial_reply_to,$initial_subject,@files,
 140        $author,$sender,$smtp_authpass,$annotate,$compose,$time);
 141
 142my $envelope_sender;
 143
 144# Example reply to:
 145#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 146
 147my $repo = eval { Git->repository() };
 148my @repo = $repo ? ($repo) : ();
 149my $term = eval {
 150        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 151                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 152                : new Term::ReadLine 'git-send-email';
 153};
 154if ($@) {
 155        $term = new FakeTerm "$@: going non-interactive";
 156}
 157
 158# Behavior modification variables
 159my ($quiet, $dry_run) = (0, 0);
 160my $format_patch;
 161my $compose_filename;
 162
 163# Handle interactive edition of files.
 164my $multiedit;
 165my $editor = $ENV{GIT_EDITOR} || Git::config(@repo, "core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 166sub do_edit {
 167        if (defined($multiedit) && !$multiedit) {
 168                map {
 169                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 170                        if (($? & 127) || ($? >> 8)) {
 171                                die("the editor exited uncleanly, aborting everything");
 172                        }
 173                } @_;
 174        } else {
 175                system('sh', '-c', $editor.' "$@"', $editor, @_);
 176                if (($? & 127) || ($? >> 8)) {
 177                        die("the editor exited uncleanly, aborting everything");
 178                }
 179        }
 180}
 181
 182# Variables with corresponding config settings
 183my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc, $cc_cmd);
 184my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
 185my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
 186my ($validate, $confirm);
 187my (@suppress_cc);
 188
 189my %config_bool_settings = (
 190    "thread" => [\$thread, 1],
 191    "chainreplyto" => [\$chain_reply_to, 1],
 192    "suppressfrom" => [\$suppress_from, undef],
 193    "signedoffbycc" => [\$signed_off_by_cc, undef],
 194    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 195    "validate" => [\$validate, 1],
 196);
 197
 198my %config_settings = (
 199    "smtpserver" => \$smtp_server,
 200    "smtpserverport" => \$smtp_server_port,
 201    "smtpuser" => \$smtp_authuser,
 202    "smtppass" => \$smtp_authpass,
 203    "to" => \@to,
 204    "cc" => \@initial_cc,
 205    "cccmd" => \$cc_cmd,
 206    "aliasfiletype" => \$aliasfiletype,
 207    "bcc" => \@bcclist,
 208    "aliasesfile" => \@alias_files,
 209    "suppresscc" => \@suppress_cc,
 210    "envelopesender" => \$envelope_sender,
 211    "multiedit" => \$multiedit,
 212    "confirm"   => \$confirm,
 213);
 214
 215# Handle Uncouth Termination
 216sub signal_handler {
 217
 218        # Make text normal
 219        print color("reset"), "\n";
 220
 221        # SMTP password masked
 222        system "stty echo";
 223
 224        # tmp files from --compose
 225        if (defined $compose_filename) {
 226                if (-e $compose_filename) {
 227                        print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
 228                }
 229                if (-e ($compose_filename . ".final")) {
 230                        print "'$compose_filename.final' contains the composed email.\n"
 231                }
 232        }
 233
 234        exit;
 235};
 236
 237$SIG{TERM} = \&signal_handler;
 238$SIG{INT}  = \&signal_handler;
 239
 240# Begin by accumulating all the variables (defined above), that we will end up
 241# needing, first, from the command line:
 242
 243my $rc = GetOptions("sender|from=s" => \$sender,
 244                    "in-reply-to=s" => \$initial_reply_to,
 245                    "subject=s" => \$initial_subject,
 246                    "to=s" => \@to,
 247                    "cc=s" => \@initial_cc,
 248                    "bcc=s" => \@bcclist,
 249                    "chain-reply-to!" => \$chain_reply_to,
 250                    "smtp-server=s" => \$smtp_server,
 251                    "smtp-server-port=s" => \$smtp_server_port,
 252                    "smtp-user=s" => \$smtp_authuser,
 253                    "smtp-pass:s" => \$smtp_authpass,
 254                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 255                    "smtp-encryption=s" => \$smtp_encryption,
 256                    "identity=s" => \$identity,
 257                    "annotate" => \$annotate,
 258                    "compose" => \$compose,
 259                    "quiet" => \$quiet,
 260                    "cc-cmd=s" => \$cc_cmd,
 261                    "suppress-from!" => \$suppress_from,
 262                    "suppress-cc=s" => \@suppress_cc,
 263                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 264                    "confirm=s" => \$confirm,
 265                    "dry-run" => \$dry_run,
 266                    "envelope-sender=s" => \$envelope_sender,
 267                    "thread!" => \$thread,
 268                    "validate!" => \$validate,
 269                    "format-patch!" => \$format_patch,
 270         );
 271
 272unless ($rc) {
 273    usage();
 274}
 275
 276die "Cannot run git format-patch from outside a repository\n"
 277        if $format_patch and not $repo;
 278
 279# Now, let's fill any that aren't set in with defaults:
 280
 281sub read_config {
 282        my ($prefix) = @_;
 283
 284        foreach my $setting (keys %config_bool_settings) {
 285                my $target = $config_bool_settings{$setting}->[0];
 286                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 287        }
 288
 289        foreach my $setting (keys %config_settings) {
 290                my $target = $config_settings{$setting};
 291                if (ref($target) eq "ARRAY") {
 292                        unless (@$target) {
 293                                my @values = Git::config(@repo, "$prefix.$setting");
 294                                @$target = @values if (@values && defined $values[0]);
 295                        }
 296                }
 297                else {
 298                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 299                }
 300        }
 301
 302        if (!defined $smtp_encryption) {
 303                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 304                if (defined $enc) {
 305                        $smtp_encryption = $enc;
 306                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 307                        $smtp_encryption = 'ssl';
 308                }
 309        }
 310}
 311
 312# read configuration from [sendemail "$identity"], fall back on [sendemail]
 313$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 314read_config("sendemail.$identity") if (defined $identity);
 315read_config("sendemail");
 316
 317# fall back on builtin bool defaults
 318foreach my $setting (values %config_bool_settings) {
 319        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 320}
 321
 322# 'default' encryption is none -- this only prevents a warning
 323$smtp_encryption = '' unless (defined $smtp_encryption);
 324
 325# Set CC suppressions
 326my(%suppress_cc);
 327if (@suppress_cc) {
 328        foreach my $entry (@suppress_cc) {
 329                die "Unknown --suppress-cc field: '$entry'\n"
 330                        unless $entry =~ /^(all|cccmd|cc|author|self|sob|body|bodycc)$/;
 331                $suppress_cc{$entry} = 1;
 332        }
 333}
 334
 335if ($suppress_cc{'all'}) {
 336        foreach my $entry (qw (ccmd cc author self sob body bodycc)) {
 337                $suppress_cc{$entry} = 1;
 338        }
 339        delete $suppress_cc{'all'};
 340}
 341
 342# If explicit old-style ones are specified, they trump --suppress-cc.
 343$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 344$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 345
 346if ($suppress_cc{'body'}) {
 347        foreach my $entry (qw (sob bodycc)) {
 348                $suppress_cc{$entry} = 1;
 349        }
 350        delete $suppress_cc{'body'};
 351}
 352
 353# Set confirm's default value
 354my $confirm_unconfigured = !defined $confirm;
 355if ($confirm_unconfigured) {
 356        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 357};
 358die "Unknown --confirm setting: '$confirm'\n"
 359        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 360
 361# Debugging, print out the suppressions.
 362if (0) {
 363        print "suppressions:\n";
 364        foreach my $entry (keys %suppress_cc) {
 365                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 366        }
 367}
 368
 369my ($repoauthor, $repocommitter);
 370($repoauthor) = Git::ident_person(@repo, 'author');
 371($repocommitter) = Git::ident_person(@repo, 'committer');
 372
 373# Verify the user input
 374
 375foreach my $entry (@to) {
 376        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 377}
 378
 379foreach my $entry (@initial_cc) {
 380        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 381}
 382
 383foreach my $entry (@bcclist) {
 384        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 385}
 386
 387sub parse_address_line {
 388        if ($have_mail_address) {
 389                return map { $_->format } Mail::Address->parse($_[0]);
 390        } else {
 391                return split_addrs($_[0]);
 392        }
 393}
 394
 395sub split_addrs {
 396        return quotewords('\s*,\s*', 1, @_);
 397}
 398
 399my %aliases;
 400my %parse_alias = (
 401        # multiline formats can be supported in the future
 402        mutt => sub { my $fh = shift; while (<$fh>) {
 403                if (/^\s*alias\s+(\S+)\s+(.*)$/) {
 404                        my ($alias, $addr) = ($1, $2);
 405                        $addr =~ s/#.*$//; # mutt allows # comments
 406                         # commas delimit multiple addresses
 407                        $aliases{$alias} = [ split_addrs($addr) ];
 408                }}},
 409        mailrc => sub { my $fh = shift; while (<$fh>) {
 410                if (/^alias\s+(\S+)\s+(.*)$/) {
 411                        # spaces delimit multiple addresses
 412                        $aliases{$1} = [ split(/\s+/, $2) ];
 413                }}},
 414        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 415                for (my $x = ''; defined($x); $x = $_) {
 416                        chomp $x;
 417                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 418                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 419                        $aliases{$1} = [ split_addrs($2) ];
 420                }},
 421        elm => sub  { my $fh = shift;
 422                      while (<$fh>) {
 423                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 424                              my ($alias, $addr) = ($1, $2);
 425                               $aliases{$alias} = [ split_addrs($addr) ];
 426                          }
 427                      } },
 428
 429        gnus => sub { my $fh = shift; while (<$fh>) {
 430                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 431                        $aliases{$1} = [ $2 ];
 432                }}}
 433);
 434
 435if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 436        foreach my $file (@alias_files) {
 437                open my $fh, '<', $file or die "opening $file: $!\n";
 438                $parse_alias{$aliasfiletype}->($fh);
 439                close $fh;
 440        }
 441}
 442
 443($sender) = expand_aliases($sender) if defined $sender;
 444
 445# returns 1 if the conflict must be solved using it as a format-patch argument
 446sub check_file_rev_conflict($) {
 447        return unless $repo;
 448        my $f = shift;
 449        try {
 450                $repo->command('rev-parse', '--verify', '--quiet', $f);
 451                if (defined($format_patch)) {
 452                        print "foo\n";
 453                        return $format_patch;
 454                }
 455                die(<<EOF);
 456File '$f' exists but it could also be the range of commits
 457to produce patches for.  Please disambiguate by...
 458
 459    * Saying "./$f" if you mean a file; or
 460    * Giving --format-patch option if you mean a range.
 461EOF
 462        } catch Git::Error::Command with {
 463                return 0;
 464        }
 465}
 466
 467# Now that all the defaults are set, process the rest of the command line
 468# arguments and collect up the files that need to be processed.
 469my @rev_list_opts;
 470while (defined(my $f = shift @ARGV)) {
 471        if ($f eq "--") {
 472                push @rev_list_opts, "--", @ARGV;
 473                @ARGV = ();
 474        } elsif (-d $f and !check_file_rev_conflict($f)) {
 475                opendir(DH,$f)
 476                        or die "Failed to opendir $f: $!";
 477
 478                push @files, grep { -f $_ } map { +$f . "/" . $_ }
 479                                sort readdir(DH);
 480                closedir(DH);
 481        } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
 482                push @files, $f;
 483        } else {
 484                push @rev_list_opts, $f;
 485        }
 486}
 487
 488if (@rev_list_opts) {
 489        die "Cannot run git format-patch from outside a repository\n"
 490                unless $repo;
 491        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 492}
 493
 494if ($validate) {
 495        foreach my $f (@files) {
 496                unless (-p $f) {
 497                        my $error = validate_patch($f);
 498                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 499                }
 500        }
 501}
 502
 503if (@files) {
 504        unless ($quiet) {
 505                print $_,"\n" for (@files);
 506        }
 507} else {
 508        print STDERR "\nNo patch files specified!\n\n";
 509        usage();
 510}
 511
 512sub get_patch_subject($) {
 513        my $fn = shift;
 514        open (my $fh, '<', $fn);
 515        while (my $line = <$fh>) {
 516                next unless ($line =~ /^Subject: (.*)$/);
 517                close $fh;
 518                return "GIT: $1\n";
 519        }
 520        close $fh;
 521        die "No subject line in $fn ?";
 522}
 523
 524if ($compose) {
 525        # Note that this does not need to be secure, but we will make a small
 526        # effort to have it be unique
 527        $compose_filename = ($repo ?
 528                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 529                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 530        open(C,">",$compose_filename)
 531                or die "Failed to open for writing $compose_filename: $!";
 532
 533
 534        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 535        my $tpl_subject = $initial_subject || '';
 536        my $tpl_reply_to = $initial_reply_to || '';
 537
 538        print C <<EOT;
 539From $tpl_sender # This line is ignored.
 540GIT: Lines beginning in "GIT: " will be removed.
 541GIT: Consider including an overall diffstat or table of contents
 542GIT: for the patch you are writing.
 543GIT:
 544GIT: Clear the body content if you don't wish to send a summary.
 545From: $tpl_sender
 546Subject: $tpl_subject
 547In-Reply-To: $tpl_reply_to
 548
 549EOT
 550        for my $f (@files) {
 551                print C get_patch_subject($f);
 552        }
 553        close(C);
 554
 555        my $editor = $ENV{GIT_EDITOR} || Git::config(@repo, "core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 556
 557        if ($annotate) {
 558                do_edit($compose_filename, @files);
 559        } else {
 560                do_edit($compose_filename);
 561        }
 562
 563        open(C2,">",$compose_filename . ".final")
 564                or die "Failed to open $compose_filename.final : " . $!;
 565
 566        open(C,"<",$compose_filename)
 567                or die "Failed to open $compose_filename : " . $!;
 568
 569        my $need_8bit_cte = file_has_nonascii($compose_filename);
 570        my $in_body = 0;
 571        my $summary_empty = 1;
 572        while(<C>) {
 573                next if m/^GIT: /;
 574                if ($in_body) {
 575                        $summary_empty = 0 unless (/^\n$/);
 576                } elsif (/^\n$/) {
 577                        $in_body = 1;
 578                        if ($need_8bit_cte) {
 579                                print C2 "MIME-Version: 1.0\n",
 580                                         "Content-Type: text/plain; ",
 581                                           "charset=utf-8\n",
 582                                         "Content-Transfer-Encoding: 8bit\n";
 583                        }
 584                } elsif (/^MIME-Version:/i) {
 585                        $need_8bit_cte = 0;
 586                } elsif (/^Subject:\s*(.+)\s*$/i) {
 587                        $initial_subject = $1;
 588                        my $subject = $initial_subject;
 589                        $_ = "Subject: " .
 590                                ($subject =~ /[^[:ascii:]]/ ?
 591                                 quote_rfc2047($subject) :
 592                                 $subject) .
 593                                "\n";
 594                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 595                        $initial_reply_to = $1;
 596                        next;
 597                } elsif (/^From:\s*(.+)\s*$/i) {
 598                        $sender = $1;
 599                        next;
 600                } elsif (/^(?:To|Cc|Bcc):/i) {
 601                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 602                        next;
 603                }
 604                print C2 $_;
 605        }
 606        close(C);
 607        close(C2);
 608
 609        if ($summary_empty) {
 610                print "Summary email is empty, skipping it\n";
 611                $compose = -1;
 612        }
 613} elsif ($annotate) {
 614        do_edit(@files);
 615}
 616
 617sub ask {
 618        my ($prompt, %arg) = @_;
 619        my $valid_re = $arg{valid_re};
 620        my $default = $arg{default};
 621        my $resp;
 622        my $i = 0;
 623        return defined $default ? $default : undef
 624                unless defined $term->IN and defined fileno($term->IN) and
 625                       defined $term->OUT and defined fileno($term->OUT);
 626        while ($i++ < 10) {
 627                $resp = $term->readline($prompt);
 628                if (!defined $resp) { # EOF
 629                        print "\n";
 630                        return defined $default ? $default : undef;
 631                }
 632                if ($resp eq '' and defined $default) {
 633                        return $default;
 634                }
 635                if (!defined $valid_re or $resp =~ /$valid_re/) {
 636                        return $resp;
 637                }
 638        }
 639        return undef;
 640}
 641
 642my $prompting = 0;
 643if (!defined $sender) {
 644        $sender = $repoauthor || $repocommitter || '';
 645        $sender = ask("Who should the emails appear to be from? [$sender] ",
 646                      default => $sender);
 647        print "Emails will be sent from: ", $sender, "\n";
 648        $prompting++;
 649}
 650
 651if (!@to) {
 652        my $to = ask("Who should the emails be sent to? ");
 653        push @to, parse_address_line($to) if defined $to; # sanitized/validated later
 654        $prompting++;
 655}
 656
 657sub expand_aliases {
 658        my @cur = @_;
 659        my @last;
 660        do {
 661                @last = @cur;
 662                @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 663        } while (join(',',@cur) ne join(',',@last));
 664        return @cur;
 665}
 666
 667@to = expand_aliases(@to);
 668@to = (map { sanitize_address($_) } @to);
 669@initial_cc = expand_aliases(@initial_cc);
 670@bcclist = expand_aliases(@bcclist);
 671
 672if ($thread && !defined $initial_reply_to && $prompting) {
 673        $initial_reply_to = ask(
 674                "Message-ID to be used as In-Reply-To for the first email? ");
 675}
 676if (defined $initial_reply_to) {
 677        $initial_reply_to =~ s/^\s*<?//;
 678        $initial_reply_to =~ s/>?\s*$//;
 679        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 680}
 681
 682if (!defined $smtp_server) {
 683        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 684                if (-x $_) {
 685                        $smtp_server = $_;
 686                        last;
 687                }
 688        }
 689        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 690}
 691
 692if ($compose && $compose > 0) {
 693        @files = ($compose_filename . ".final", @files);
 694}
 695
 696# Variables we set as part of the loop over files
 697our ($message_id, %mail, $subject, $reply_to, $references, $message,
 698        $needs_confirm, $message_num, $ask_default);
 699
 700sub extract_valid_address {
 701        my $address = shift;
 702        my $local_part_regexp = '[^<>"\s@]+';
 703        my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 704
 705        # check for a local address:
 706        return $address if ($address =~ /^($local_part_regexp)$/);
 707
 708        $address =~ s/^\s*<(.*)>\s*$/$1/;
 709        if ($have_email_valid) {
 710                return scalar Email::Valid->address($address);
 711        } else {
 712                # less robust/correct than the monster regexp in Email::Valid,
 713                # but still does a 99% job, and one less dependency
 714                $address =~ /($local_part_regexp\@$domain_regexp)/;
 715                return $1;
 716        }
 717}
 718
 719# Usually don't need to change anything below here.
 720
 721# we make a "fake" message id by taking the current number
 722# of seconds since the beginning of Unix time and tacking on
 723# a random number to the end, in case we are called quicker than
 724# 1 second since the last time we were called.
 725
 726# We'll setup a template for the message id, using the "from" address:
 727
 728my ($message_id_stamp, $message_id_serial);
 729sub make_message_id
 730{
 731        my $uniq;
 732        if (!defined $message_id_stamp) {
 733                $message_id_stamp = sprintf("%s-%s", time, $$);
 734                $message_id_serial = 0;
 735        }
 736        $message_id_serial++;
 737        $uniq = "$message_id_stamp-$message_id_serial";
 738
 739        my $du_part;
 740        for ($sender, $repocommitter, $repoauthor) {
 741                $du_part = extract_valid_address(sanitize_address($_));
 742                last if (defined $du_part and $du_part ne '');
 743        }
 744        if (not defined $du_part or $du_part eq '') {
 745                use Sys::Hostname qw();
 746                $du_part = 'user@' . Sys::Hostname::hostname();
 747        }
 748        my $message_id_template = "<%s-git-send-email-%s>";
 749        $message_id = sprintf($message_id_template, $uniq, $du_part);
 750        #print "new message id = $message_id\n"; # Was useful for debugging
 751}
 752
 753
 754
 755$time = time - scalar $#files;
 756
 757sub unquote_rfc2047 {
 758        local ($_) = @_;
 759        my $encoding;
 760        if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 761                $encoding = $1;
 762                s/_/ /g;
 763                s/=([0-9A-F]{2})/chr(hex($1))/eg;
 764        }
 765        return wantarray ? ($_, $encoding) : $_;
 766}
 767
 768sub quote_rfc2047 {
 769        local $_ = shift;
 770        my $encoding = shift || 'utf-8';
 771        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 772        s/(.*)/=\?$encoding\?q\?$1\?=/;
 773        return $_;
 774}
 775
 776# use the simplest quoting being able to handle the recipient
 777sub sanitize_address
 778{
 779        my ($recipient) = @_;
 780        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 781
 782        if (not $recipient_name) {
 783                return "$recipient";
 784        }
 785
 786        # if recipient_name is already quoted, do nothing
 787        if ($recipient_name =~ /^("[[:ascii:]]*"|=\?utf-8\?q\?.*\?=)$/) {
 788                return $recipient;
 789        }
 790
 791        # rfc2047 is needed if a non-ascii char is included
 792        if ($recipient_name =~ /[^[:ascii:]]/) {
 793                $recipient_name =~ s/^"(.*)"$/$1/;
 794                $recipient_name = quote_rfc2047($recipient_name);
 795        }
 796
 797        # double quotes are needed if specials or CTLs are included
 798        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 799                $recipient_name =~ s/(["\\\r])/\\$1/g;
 800                $recipient_name = "\"$recipient_name\"";
 801        }
 802
 803        return "$recipient_name $recipient_addr";
 804
 805}
 806
 807sub send_message
 808{
 809        my @recipients = unique_email_list(@to);
 810        @cc = (grep { my $cc = extract_valid_address($_);
 811                      not grep { $cc eq $_ } @recipients
 812                    }
 813               map { sanitize_address($_) }
 814               @cc);
 815        my $to = join (",\n\t", @recipients);
 816        @recipients = unique_email_list(@recipients,@cc,@bcclist);
 817        @recipients = (map { extract_valid_address($_) } @recipients);
 818        my $date = format_2822_time($time++);
 819        my $gitversion = '@@GIT_VERSION@@';
 820        if ($gitversion =~ m/..GIT_VERSION../) {
 821            $gitversion = Git::version();
 822        }
 823
 824        my $cc = join(", ", unique_email_list(@cc));
 825        my $ccline = "";
 826        if ($cc ne '') {
 827                $ccline = "\nCc: $cc";
 828        }
 829        my $sanitized_sender = sanitize_address($sender);
 830        make_message_id() unless defined($message_id);
 831
 832        my $header = "From: $sanitized_sender
 833To: $to${ccline}
 834Subject: $subject
 835Date: $date
 836Message-Id: $message_id
 837X-Mailer: git-send-email $gitversion
 838";
 839        if ($reply_to) {
 840
 841                $header .= "In-Reply-To: $reply_to\n";
 842                $header .= "References: $references\n";
 843        }
 844        if (@xh) {
 845                $header .= join("\n", @xh) . "\n";
 846        }
 847
 848        my @sendmail_parameters = ('-i', @recipients);
 849        my $raw_from = $sanitized_sender;
 850        $raw_from = $envelope_sender if (defined $envelope_sender);
 851        $raw_from = extract_valid_address($raw_from);
 852        unshift (@sendmail_parameters,
 853                        '-f', $raw_from) if(defined $envelope_sender);
 854
 855        if ($needs_confirm && !$dry_run) {
 856                print "\n$header\n";
 857                if ($needs_confirm eq "inform") {
 858                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
 859                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
 860                        print "    The Cc list above has been expanded by additional\n";
 861                        print "    addresses found in the patch commit message. By default\n";
 862                        print "    send-email prompts before sending whenever this occurs.\n";
 863                        print "    This behavior is controlled by the sendemail.confirm\n";
 864                        print "    configuration setting.\n";
 865                        print "\n";
 866                        print "    For additional information, run 'git send-email --help'.\n";
 867                        print "    To retain the current behavior, but squelch this message,\n";
 868                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
 869                }
 870                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
 871                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
 872                         default => $ask_default);
 873                die "Send this email reply required" unless defined $_;
 874                if (/^n/i) {
 875                        return;
 876                } elsif (/^q/i) {
 877                        cleanup_compose_files();
 878                        exit(0);
 879                } elsif (/^a/i) {
 880                        $confirm = 'never';
 881                }
 882        }
 883
 884        if ($dry_run) {
 885                # We don't want to send the email.
 886        } elsif ($smtp_server =~ m#^/#) {
 887                my $pid = open my $sm, '|-';
 888                defined $pid or die $!;
 889                if (!$pid) {
 890                        exec($smtp_server, @sendmail_parameters) or die $!;
 891                }
 892                print $sm "$header\n$message";
 893                close $sm or die $?;
 894        } else {
 895
 896                if (!defined $smtp_server) {
 897                        die "The required SMTP server is not properly defined."
 898                }
 899
 900                if ($smtp_encryption eq 'ssl') {
 901                        $smtp_server_port ||= 465; # ssmtp
 902                        require Net::SMTP::SSL;
 903                        $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
 904                }
 905                else {
 906                        require Net::SMTP;
 907                        $smtp ||= Net::SMTP->new((defined $smtp_server_port)
 908                                                 ? "$smtp_server:$smtp_server_port"
 909                                                 : $smtp_server);
 910                        if ($smtp_encryption eq 'tls') {
 911                                require Net::SMTP::SSL;
 912                                $smtp->command('STARTTLS');
 913                                $smtp->response();
 914                                if ($smtp->code == 220) {
 915                                        $smtp = Net::SMTP::SSL->start_SSL($smtp)
 916                                                or die "STARTTLS failed! ".$smtp->message;
 917                                        $smtp_encryption = '';
 918                                        # Send EHLO again to receive fresh
 919                                        # supported commands
 920                                        $smtp->hello();
 921                                } else {
 922                                        die "Server does not support STARTTLS! ".$smtp->message;
 923                                }
 924                        }
 925                }
 926
 927                if (!$smtp) {
 928                        die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
 929                }
 930
 931                if (defined $smtp_authuser) {
 932
 933                        if (!defined $smtp_authpass) {
 934
 935                                system "stty -echo";
 936
 937                                do {
 938                                        print "Password: ";
 939                                        $_ = <STDIN>;
 940                                        print "\n";
 941                                } while (!defined $_);
 942
 943                                chomp($smtp_authpass = $_);
 944
 945                                system "stty echo";
 946                        }
 947
 948                        $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 949                }
 950
 951                $smtp->mail( $raw_from ) or die $smtp->message;
 952                $smtp->to( @recipients ) or die $smtp->message;
 953                $smtp->data or die $smtp->message;
 954                $smtp->datasend("$header\n$message") or die $smtp->message;
 955                $smtp->dataend() or die $smtp->message;
 956                $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 957        }
 958        if ($quiet) {
 959                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 960        } else {
 961                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
 962                if ($smtp_server !~ m#^/#) {
 963                        print "Server: $smtp_server\n";
 964                        print "MAIL FROM:<$raw_from>\n";
 965                        print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 966                } else {
 967                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 968                }
 969                print $header, "\n";
 970                if ($smtp) {
 971                        print "Result: ", $smtp->code, ' ',
 972                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 973                } else {
 974                        print "Result: OK\n";
 975                }
 976        }
 977}
 978
 979$reply_to = $initial_reply_to;
 980$references = $initial_reply_to || '';
 981$subject = $initial_subject;
 982$message_num = 0;
 983
 984foreach my $t (@files) {
 985        open(F,"<",$t) or die "can't open file $t";
 986
 987        my $author = undef;
 988        my $author_encoding;
 989        my $has_content_type;
 990        my $body_encoding;
 991        @cc = ();
 992        @xh = ();
 993        my $input_format = undef;
 994        my @header = ();
 995        $message = "";
 996        $message_num++;
 997        # First unfold multiline header fields
 998        while(<F>) {
 999                last if /^\s*$/;
1000                if (/^\s+\S/ and @header) {
1001                        chomp($header[$#header]);
1002                        s/^\s+/ /;
1003                        $header[$#header] .= $_;
1004            } else {
1005                        push(@header, $_);
1006                }
1007        }
1008        # Now parse the header
1009        foreach(@header) {
1010                if (/^From /) {
1011                        $input_format = 'mbox';
1012                        next;
1013                }
1014                chomp;
1015                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1016                        $input_format = 'mbox';
1017                }
1018
1019                if (defined $input_format && $input_format eq 'mbox') {
1020                        if (/^Subject:\s+(.*)$/) {
1021                                $subject = $1;
1022                        }
1023                        elsif (/^From:\s+(.*)$/) {
1024                                ($author, $author_encoding) = unquote_rfc2047($1);
1025                                next if $suppress_cc{'author'};
1026                                next if $suppress_cc{'self'} and $author eq $sender;
1027                                printf("(mbox) Adding cc: %s from line '%s'\n",
1028                                        $1, $_) unless $quiet;
1029                                push @cc, $1;
1030                        }
1031                        elsif (/^Cc:\s+(.*)$/) {
1032                                foreach my $addr (parse_address_line($1)) {
1033                                        if (unquote_rfc2047($addr) eq $sender) {
1034                                                next if ($suppress_cc{'self'});
1035                                        } else {
1036                                                next if ($suppress_cc{'cc'});
1037                                        }
1038                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1039                                                $addr, $_) unless $quiet;
1040                                        push @cc, $addr;
1041                                }
1042                        }
1043                        elsif (/^Content-type:/i) {
1044                                $has_content_type = 1;
1045                                if (/charset="?([^ "]+)/) {
1046                                        $body_encoding = $1;
1047                                }
1048                                push @xh, $_;
1049                        }
1050                        elsif (/^Message-Id: (.*)/i) {
1051                                $message_id = $1;
1052                        }
1053                        elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1054                                push @xh, $_;
1055                        }
1056
1057                } else {
1058                        # In the traditional
1059                        # "send lots of email" format,
1060                        # line 1 = cc
1061                        # line 2 = subject
1062                        # So let's support that, too.
1063                        $input_format = 'lots';
1064                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1065                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1066                                        $_, $_) unless $quiet;
1067                                push @cc, $_;
1068                        } elsif (!defined $subject) {
1069                                $subject = $_;
1070                        }
1071                }
1072        }
1073        # Now parse the message body
1074        while(<F>) {
1075                $message .=  $_;
1076                if (/^(Signed-off-by|Cc): (.*)$/i) {
1077                        chomp;
1078                        my ($what, $c) = ($1, $2);
1079                        chomp $c;
1080                        if ($c eq $sender) {
1081                                next if ($suppress_cc{'self'});
1082                        } else {
1083                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1084                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1085                        }
1086                        push @cc, $c;
1087                        printf("(body) Adding cc: %s from line '%s'\n",
1088                                $c, $_) unless $quiet;
1089                }
1090        }
1091        close F;
1092
1093        if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
1094                open(F, "$cc_cmd $t |")
1095                        or die "(cc-cmd) Could not execute '$cc_cmd'";
1096                while(<F>) {
1097                        my $c = $_;
1098                        $c =~ s/^\s*//g;
1099                        $c =~ s/\n$//g;
1100                        next if ($c eq $sender and $suppress_from);
1101                        push @cc, $c;
1102                        printf("(cc-cmd) Adding cc: %s from: '%s'\n",
1103                                $c, $cc_cmd) unless $quiet;
1104                }
1105                close F
1106                        or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
1107        }
1108
1109        if (defined $author and $author ne $sender) {
1110                $message = "From: $author\n\n$message";
1111                if (defined $author_encoding) {
1112                        if ($has_content_type) {
1113                                if ($body_encoding eq $author_encoding) {
1114                                        # ok, we already have the right encoding
1115                                }
1116                                else {
1117                                        # uh oh, we should re-encode
1118                                }
1119                        }
1120                        else {
1121                                push @xh,
1122                                  'MIME-Version: 1.0',
1123                                  "Content-Type: text/plain; charset=$author_encoding",
1124                                  'Content-Transfer-Encoding: 8bit';
1125                        }
1126                }
1127        }
1128
1129        $needs_confirm = (
1130                $confirm eq "always" or
1131                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1132                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1133        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1134
1135        @cc = (@initial_cc, @cc);
1136
1137        send_message();
1138
1139        # set up for the next message
1140        if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
1141                $reply_to = $message_id;
1142                if (length $references > 0) {
1143                        $references .= "\n $message_id";
1144                } else {
1145                        $references = "$message_id";
1146                }
1147        }
1148        $message_id = undef;
1149}
1150
1151cleanup_compose_files();
1152
1153sub cleanup_compose_files() {
1154        unlink($compose_filename, $compose_filename . ".final") if $compose;
1155}
1156
1157$smtp->quit if $smtp;
1158
1159sub unique_email_list(@) {
1160        my %seen;
1161        my @emails;
1162
1163        foreach my $entry (@_) {
1164                if (my $clean = extract_valid_address($entry)) {
1165                        $seen{$clean} ||= 0;
1166                        next if $seen{$clean}++;
1167                        push @emails, $entry;
1168                } else {
1169                        print STDERR "W: unable to extract a valid address",
1170                                        " from: $entry\n";
1171                }
1172        }
1173        return @emails;
1174}
1175
1176sub validate_patch {
1177        my $fn = shift;
1178        open(my $fh, '<', $fn)
1179                or die "unable to open $fn: $!\n";
1180        while (my $line = <$fh>) {
1181                if (length($line) > 998) {
1182                        return "$.: patch contains a line longer than 998 characters";
1183                }
1184        }
1185        return undef;
1186}
1187
1188sub file_has_nonascii {
1189        my $fn = shift;
1190        open(my $fh, '<', $fn)
1191                or die "unable to open $fn: $!\n";
1192        while (my $line = <$fh>) {
1193                return 1 if $line =~ /[^[:ascii:]]/;
1194        }
1195        return 0;
1196}