git-send-email.perlon commit info/grafts: allow trailing whitespaces at the end of line (fe0a3cb)
   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                        return $format_patch;
 453                }
 454                die(<<EOF);
 455File '$f' exists but it could also be the range of commits
 456to produce patches for.  Please disambiguate by...
 457
 458    * Saying "./$f" if you mean a file; or
 459    * Giving --format-patch option if you mean a range.
 460EOF
 461        } catch Git::Error::Command with {
 462                return 0;
 463        }
 464}
 465
 466# Now that all the defaults are set, process the rest of the command line
 467# arguments and collect up the files that need to be processed.
 468my @rev_list_opts;
 469while (defined(my $f = shift @ARGV)) {
 470        if ($f eq "--") {
 471                push @rev_list_opts, "--", @ARGV;
 472                @ARGV = ();
 473        } elsif (-d $f and !check_file_rev_conflict($f)) {
 474                opendir(DH,$f)
 475                        or die "Failed to opendir $f: $!";
 476
 477                push @files, grep { -f $_ } map { +$f . "/" . $_ }
 478                                sort readdir(DH);
 479                closedir(DH);
 480        } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
 481                push @files, $f;
 482        } else {
 483                push @rev_list_opts, $f;
 484        }
 485}
 486
 487if (@rev_list_opts) {
 488        die "Cannot run git format-patch from outside a repository\n"
 489                unless $repo;
 490        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 491}
 492
 493if ($validate) {
 494        foreach my $f (@files) {
 495                unless (-p $f) {
 496                        my $error = validate_patch($f);
 497                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 498                }
 499        }
 500}
 501
 502if (@files) {
 503        unless ($quiet) {
 504                print $_,"\n" for (@files);
 505        }
 506} else {
 507        print STDERR "\nNo patch files specified!\n\n";
 508        usage();
 509}
 510
 511sub get_patch_subject($) {
 512        my $fn = shift;
 513        open (my $fh, '<', $fn);
 514        while (my $line = <$fh>) {
 515                next unless ($line =~ /^Subject: (.*)$/);
 516                close $fh;
 517                return "GIT: $1\n";
 518        }
 519        close $fh;
 520        die "No subject line in $fn ?";
 521}
 522
 523if ($compose) {
 524        # Note that this does not need to be secure, but we will make a small
 525        # effort to have it be unique
 526        $compose_filename = ($repo ?
 527                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 528                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 529        open(C,">",$compose_filename)
 530                or die "Failed to open for writing $compose_filename: $!";
 531
 532
 533        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 534        my $tpl_subject = $initial_subject || '';
 535        my $tpl_reply_to = $initial_reply_to || '';
 536
 537        print C <<EOT;
 538From $tpl_sender # This line is ignored.
 539GIT: Lines beginning in "GIT: " will be removed.
 540GIT: Consider including an overall diffstat or table of contents
 541GIT: for the patch you are writing.
 542GIT:
 543GIT: Clear the body content if you don't wish to send a summary.
 544From: $tpl_sender
 545Subject: $tpl_subject
 546In-Reply-To: $tpl_reply_to
 547
 548EOT
 549        for my $f (@files) {
 550                print C get_patch_subject($f);
 551        }
 552        close(C);
 553
 554        my $editor = $ENV{GIT_EDITOR} || Git::config(@repo, "core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 555
 556        if ($annotate) {
 557                do_edit($compose_filename, @files);
 558        } else {
 559                do_edit($compose_filename);
 560        }
 561
 562        open(C2,">",$compose_filename . ".final")
 563                or die "Failed to open $compose_filename.final : " . $!;
 564
 565        open(C,"<",$compose_filename)
 566                or die "Failed to open $compose_filename : " . $!;
 567
 568        my $need_8bit_cte = file_has_nonascii($compose_filename);
 569        my $in_body = 0;
 570        my $summary_empty = 1;
 571        while(<C>) {
 572                next if m/^GIT: /;
 573                if ($in_body) {
 574                        $summary_empty = 0 unless (/^\n$/);
 575                } elsif (/^\n$/) {
 576                        $in_body = 1;
 577                        if ($need_8bit_cte) {
 578                                print C2 "MIME-Version: 1.0\n",
 579                                         "Content-Type: text/plain; ",
 580                                           "charset=utf-8\n",
 581                                         "Content-Transfer-Encoding: 8bit\n";
 582                        }
 583                } elsif (/^MIME-Version:/i) {
 584                        $need_8bit_cte = 0;
 585                } elsif (/^Subject:\s*(.+)\s*$/i) {
 586                        $initial_subject = $1;
 587                        my $subject = $initial_subject;
 588                        $_ = "Subject: " .
 589                                ($subject =~ /[^[:ascii:]]/ ?
 590                                 quote_rfc2047($subject) :
 591                                 $subject) .
 592                                "\n";
 593                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 594                        $initial_reply_to = $1;
 595                        next;
 596                } elsif (/^From:\s*(.+)\s*$/i) {
 597                        $sender = $1;
 598                        next;
 599                } elsif (/^(?:To|Cc|Bcc):/i) {
 600                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 601                        next;
 602                }
 603                print C2 $_;
 604        }
 605        close(C);
 606        close(C2);
 607
 608        if ($summary_empty) {
 609                print "Summary email is empty, skipping it\n";
 610                $compose = -1;
 611        }
 612} elsif ($annotate) {
 613        do_edit(@files);
 614}
 615
 616sub ask {
 617        my ($prompt, %arg) = @_;
 618        my $valid_re = $arg{valid_re};
 619        my $default = $arg{default};
 620        my $resp;
 621        my $i = 0;
 622        return defined $default ? $default : undef
 623                unless defined $term->IN and defined fileno($term->IN) and
 624                       defined $term->OUT and defined fileno($term->OUT);
 625        while ($i++ < 10) {
 626                $resp = $term->readline($prompt);
 627                if (!defined $resp) { # EOF
 628                        print "\n";
 629                        return defined $default ? $default : undef;
 630                }
 631                if ($resp eq '' and defined $default) {
 632                        return $default;
 633                }
 634                if (!defined $valid_re or $resp =~ /$valid_re/) {
 635                        return $resp;
 636                }
 637        }
 638        return undef;
 639}
 640
 641my $prompting = 0;
 642if (!defined $sender) {
 643        $sender = $repoauthor || $repocommitter || '';
 644        $sender = ask("Who should the emails appear to be from? [$sender] ",
 645                      default => $sender);
 646        print "Emails will be sent from: ", $sender, "\n";
 647        $prompting++;
 648}
 649
 650if (!@to) {
 651        my $to = ask("Who should the emails be sent to? ");
 652        push @to, parse_address_line($to) if defined $to; # sanitized/validated later
 653        $prompting++;
 654}
 655
 656sub expand_aliases {
 657        my @cur = @_;
 658        my @last;
 659        do {
 660                @last = @cur;
 661                @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 662        } while (join(',',@cur) ne join(',',@last));
 663        return @cur;
 664}
 665
 666@to = expand_aliases(@to);
 667@to = (map { sanitize_address($_) } @to);
 668@initial_cc = expand_aliases(@initial_cc);
 669@bcclist = expand_aliases(@bcclist);
 670
 671if ($thread && !defined $initial_reply_to && $prompting) {
 672        $initial_reply_to = ask(
 673                "Message-ID to be used as In-Reply-To for the first email? ");
 674}
 675if (defined $initial_reply_to) {
 676        $initial_reply_to =~ s/^\s*<?//;
 677        $initial_reply_to =~ s/>?\s*$//;
 678        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 679}
 680
 681if (!defined $smtp_server) {
 682        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 683                if (-x $_) {
 684                        $smtp_server = $_;
 685                        last;
 686                }
 687        }
 688        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 689}
 690
 691if ($compose && $compose > 0) {
 692        @files = ($compose_filename . ".final", @files);
 693}
 694
 695# Variables we set as part of the loop over files
 696our ($message_id, %mail, $subject, $reply_to, $references, $message,
 697        $needs_confirm, $message_num, $ask_default);
 698
 699sub extract_valid_address {
 700        my $address = shift;
 701        my $local_part_regexp = '[^<>"\s@]+';
 702        my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 703
 704        # check for a local address:
 705        return $address if ($address =~ /^($local_part_regexp)$/);
 706
 707        $address =~ s/^\s*<(.*)>\s*$/$1/;
 708        if ($have_email_valid) {
 709                return scalar Email::Valid->address($address);
 710        } else {
 711                # less robust/correct than the monster regexp in Email::Valid,
 712                # but still does a 99% job, and one less dependency
 713                $address =~ /($local_part_regexp\@$domain_regexp)/;
 714                return $1;
 715        }
 716}
 717
 718# Usually don't need to change anything below here.
 719
 720# we make a "fake" message id by taking the current number
 721# of seconds since the beginning of Unix time and tacking on
 722# a random number to the end, in case we are called quicker than
 723# 1 second since the last time we were called.
 724
 725# We'll setup a template for the message id, using the "from" address:
 726
 727my ($message_id_stamp, $message_id_serial);
 728sub make_message_id
 729{
 730        my $uniq;
 731        if (!defined $message_id_stamp) {
 732                $message_id_stamp = sprintf("%s-%s", time, $$);
 733                $message_id_serial = 0;
 734        }
 735        $message_id_serial++;
 736        $uniq = "$message_id_stamp-$message_id_serial";
 737
 738        my $du_part;
 739        for ($sender, $repocommitter, $repoauthor) {
 740                $du_part = extract_valid_address(sanitize_address($_));
 741                last if (defined $du_part and $du_part ne '');
 742        }
 743        if (not defined $du_part or $du_part eq '') {
 744                use Sys::Hostname qw();
 745                $du_part = 'user@' . Sys::Hostname::hostname();
 746        }
 747        my $message_id_template = "<%s-git-send-email-%s>";
 748        $message_id = sprintf($message_id_template, $uniq, $du_part);
 749        #print "new message id = $message_id\n"; # Was useful for debugging
 750}
 751
 752
 753
 754$time = time - scalar $#files;
 755
 756sub unquote_rfc2047 {
 757        local ($_) = @_;
 758        my $encoding;
 759        if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 760                $encoding = $1;
 761                s/_/ /g;
 762                s/=([0-9A-F]{2})/chr(hex($1))/eg;
 763        }
 764        return wantarray ? ($_, $encoding) : $_;
 765}
 766
 767sub quote_rfc2047 {
 768        local $_ = shift;
 769        my $encoding = shift || 'utf-8';
 770        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 771        s/(.*)/=\?$encoding\?q\?$1\?=/;
 772        return $_;
 773}
 774
 775# use the simplest quoting being able to handle the recipient
 776sub sanitize_address
 777{
 778        my ($recipient) = @_;
 779        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 780
 781        if (not $recipient_name) {
 782                return "$recipient";
 783        }
 784
 785        # if recipient_name is already quoted, do nothing
 786        if ($recipient_name =~ /^("[[:ascii:]]*"|=\?utf-8\?q\?.*\?=)$/) {
 787                return $recipient;
 788        }
 789
 790        # rfc2047 is needed if a non-ascii char is included
 791        if ($recipient_name =~ /[^[:ascii:]]/) {
 792                $recipient_name =~ s/^"(.*)"$/$1/;
 793                $recipient_name = quote_rfc2047($recipient_name);
 794        }
 795
 796        # double quotes are needed if specials or CTLs are included
 797        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 798                $recipient_name =~ s/(["\\\r])/\\$1/g;
 799                $recipient_name = "\"$recipient_name\"";
 800        }
 801
 802        return "$recipient_name $recipient_addr";
 803
 804}
 805
 806sub send_message
 807{
 808        my @recipients = unique_email_list(@to);
 809        @cc = (grep { my $cc = extract_valid_address($_);
 810                      not grep { $cc eq $_ } @recipients
 811                    }
 812               map { sanitize_address($_) }
 813               @cc);
 814        my $to = join (",\n\t", @recipients);
 815        @recipients = unique_email_list(@recipients,@cc,@bcclist);
 816        @recipients = (map { extract_valid_address($_) } @recipients);
 817        my $date = format_2822_time($time++);
 818        my $gitversion = '@@GIT_VERSION@@';
 819        if ($gitversion =~ m/..GIT_VERSION../) {
 820            $gitversion = Git::version();
 821        }
 822
 823        my $cc = join(", ", unique_email_list(@cc));
 824        my $ccline = "";
 825        if ($cc ne '') {
 826                $ccline = "\nCc: $cc";
 827        }
 828        my $sanitized_sender = sanitize_address($sender);
 829        make_message_id() unless defined($message_id);
 830
 831        my $header = "From: $sanitized_sender
 832To: $to${ccline}
 833Subject: $subject
 834Date: $date
 835Message-Id: $message_id
 836X-Mailer: git-send-email $gitversion
 837";
 838        if ($reply_to) {
 839
 840                $header .= "In-Reply-To: $reply_to\n";
 841                $header .= "References: $references\n";
 842        }
 843        if (@xh) {
 844                $header .= join("\n", @xh) . "\n";
 845        }
 846
 847        my @sendmail_parameters = ('-i', @recipients);
 848        my $raw_from = $sanitized_sender;
 849        $raw_from = $envelope_sender if (defined $envelope_sender);
 850        $raw_from = extract_valid_address($raw_from);
 851        unshift (@sendmail_parameters,
 852                        '-f', $raw_from) if(defined $envelope_sender);
 853
 854        if ($needs_confirm && !$dry_run) {
 855                print "\n$header\n";
 856                if ($needs_confirm eq "inform") {
 857                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
 858                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
 859                        print "    The Cc list above has been expanded by additional\n";
 860                        print "    addresses found in the patch commit message. By default\n";
 861                        print "    send-email prompts before sending whenever this occurs.\n";
 862                        print "    This behavior is controlled by the sendemail.confirm\n";
 863                        print "    configuration setting.\n";
 864                        print "\n";
 865                        print "    For additional information, run 'git send-email --help'.\n";
 866                        print "    To retain the current behavior, but squelch this message,\n";
 867                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
 868                }
 869                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
 870                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
 871                         default => $ask_default);
 872                die "Send this email reply required" unless defined $_;
 873                if (/^n/i) {
 874                        return;
 875                } elsif (/^q/i) {
 876                        cleanup_compose_files();
 877                        exit(0);
 878                } elsif (/^a/i) {
 879                        $confirm = 'never';
 880                }
 881        }
 882
 883        if ($dry_run) {
 884                # We don't want to send the email.
 885        } elsif ($smtp_server =~ m#^/#) {
 886                my $pid = open my $sm, '|-';
 887                defined $pid or die $!;
 888                if (!$pid) {
 889                        exec($smtp_server, @sendmail_parameters) or die $!;
 890                }
 891                print $sm "$header\n$message";
 892                close $sm or die $?;
 893        } else {
 894
 895                if (!defined $smtp_server) {
 896                        die "The required SMTP server is not properly defined."
 897                }
 898
 899                if ($smtp_encryption eq 'ssl') {
 900                        $smtp_server_port ||= 465; # ssmtp
 901                        require Net::SMTP::SSL;
 902                        $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
 903                }
 904                else {
 905                        require Net::SMTP;
 906                        $smtp ||= Net::SMTP->new((defined $smtp_server_port)
 907                                                 ? "$smtp_server:$smtp_server_port"
 908                                                 : $smtp_server);
 909                        if ($smtp_encryption eq 'tls') {
 910                                require Net::SMTP::SSL;
 911                                $smtp->command('STARTTLS');
 912                                $smtp->response();
 913                                if ($smtp->code == 220) {
 914                                        $smtp = Net::SMTP::SSL->start_SSL($smtp)
 915                                                or die "STARTTLS failed! ".$smtp->message;
 916                                        $smtp_encryption = '';
 917                                        # Send EHLO again to receive fresh
 918                                        # supported commands
 919                                        $smtp->hello();
 920                                } else {
 921                                        die "Server does not support STARTTLS! ".$smtp->message;
 922                                }
 923                        }
 924                }
 925
 926                if (!$smtp) {
 927                        die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
 928                }
 929
 930                if (defined $smtp_authuser) {
 931
 932                        if (!defined $smtp_authpass) {
 933
 934                                system "stty -echo";
 935
 936                                do {
 937                                        print "Password: ";
 938                                        $_ = <STDIN>;
 939                                        print "\n";
 940                                } while (!defined $_);
 941
 942                                chomp($smtp_authpass = $_);
 943
 944                                system "stty echo";
 945                        }
 946
 947                        $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 948                }
 949
 950                $smtp->mail( $raw_from ) or die $smtp->message;
 951                $smtp->to( @recipients ) or die $smtp->message;
 952                $smtp->data or die $smtp->message;
 953                $smtp->datasend("$header\n$message") or die $smtp->message;
 954                $smtp->dataend() or die $smtp->message;
 955                $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 956        }
 957        if ($quiet) {
 958                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 959        } else {
 960                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
 961                if ($smtp_server !~ m#^/#) {
 962                        print "Server: $smtp_server\n";
 963                        print "MAIL FROM:<$raw_from>\n";
 964                        print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 965                } else {
 966                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 967                }
 968                print $header, "\n";
 969                if ($smtp) {
 970                        print "Result: ", $smtp->code, ' ',
 971                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 972                } else {
 973                        print "Result: OK\n";
 974                }
 975        }
 976}
 977
 978$reply_to = $initial_reply_to;
 979$references = $initial_reply_to || '';
 980$subject = $initial_subject;
 981$message_num = 0;
 982
 983foreach my $t (@files) {
 984        open(F,"<",$t) or die "can't open file $t";
 985
 986        my $author = undef;
 987        my $author_encoding;
 988        my $has_content_type;
 989        my $body_encoding;
 990        @cc = ();
 991        @xh = ();
 992        my $input_format = undef;
 993        my @header = ();
 994        $message = "";
 995        $message_num++;
 996        # First unfold multiline header fields
 997        while(<F>) {
 998                last if /^\s*$/;
 999                if (/^\s+\S/ and @header) {
1000                        chomp($header[$#header]);
1001                        s/^\s+/ /;
1002                        $header[$#header] .= $_;
1003            } else {
1004                        push(@header, $_);
1005                }
1006        }
1007        # Now parse the header
1008        foreach(@header) {
1009                if (/^From /) {
1010                        $input_format = 'mbox';
1011                        next;
1012                }
1013                chomp;
1014                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1015                        $input_format = 'mbox';
1016                }
1017
1018                if (defined $input_format && $input_format eq 'mbox') {
1019                        if (/^Subject:\s+(.*)$/) {
1020                                $subject = $1;
1021                        }
1022                        elsif (/^From:\s+(.*)$/) {
1023                                ($author, $author_encoding) = unquote_rfc2047($1);
1024                                next if $suppress_cc{'author'};
1025                                next if $suppress_cc{'self'} and $author eq $sender;
1026                                printf("(mbox) Adding cc: %s from line '%s'\n",
1027                                        $1, $_) unless $quiet;
1028                                push @cc, $1;
1029                        }
1030                        elsif (/^Cc:\s+(.*)$/) {
1031                                foreach my $addr (parse_address_line($1)) {
1032                                        if (unquote_rfc2047($addr) eq $sender) {
1033                                                next if ($suppress_cc{'self'});
1034                                        } else {
1035                                                next if ($suppress_cc{'cc'});
1036                                        }
1037                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1038                                                $addr, $_) unless $quiet;
1039                                        push @cc, $addr;
1040                                }
1041                        }
1042                        elsif (/^Content-type:/i) {
1043                                $has_content_type = 1;
1044                                if (/charset="?([^ "]+)/) {
1045                                        $body_encoding = $1;
1046                                }
1047                                push @xh, $_;
1048                        }
1049                        elsif (/^Message-Id: (.*)/i) {
1050                                $message_id = $1;
1051                        }
1052                        elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1053                                push @xh, $_;
1054                        }
1055
1056                } else {
1057                        # In the traditional
1058                        # "send lots of email" format,
1059                        # line 1 = cc
1060                        # line 2 = subject
1061                        # So let's support that, too.
1062                        $input_format = 'lots';
1063                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1064                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1065                                        $_, $_) unless $quiet;
1066                                push @cc, $_;
1067                        } elsif (!defined $subject) {
1068                                $subject = $_;
1069                        }
1070                }
1071        }
1072        # Now parse the message body
1073        while(<F>) {
1074                $message .=  $_;
1075                if (/^(Signed-off-by|Cc): (.*)$/i) {
1076                        chomp;
1077                        my ($what, $c) = ($1, $2);
1078                        chomp $c;
1079                        if ($c eq $sender) {
1080                                next if ($suppress_cc{'self'});
1081                        } else {
1082                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1083                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1084                        }
1085                        push @cc, $c;
1086                        printf("(body) Adding cc: %s from line '%s'\n",
1087                                $c, $_) unless $quiet;
1088                }
1089        }
1090        close F;
1091
1092        if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
1093                open(F, "$cc_cmd $t |")
1094                        or die "(cc-cmd) Could not execute '$cc_cmd'";
1095                while(<F>) {
1096                        my $c = $_;
1097                        $c =~ s/^\s*//g;
1098                        $c =~ s/\n$//g;
1099                        next if ($c eq $sender and $suppress_from);
1100                        push @cc, $c;
1101                        printf("(cc-cmd) Adding cc: %s from: '%s'\n",
1102                                $c, $cc_cmd) unless $quiet;
1103                }
1104                close F
1105                        or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
1106        }
1107
1108        if (defined $author and $author ne $sender) {
1109                $message = "From: $author\n\n$message";
1110                if (defined $author_encoding) {
1111                        if ($has_content_type) {
1112                                if ($body_encoding eq $author_encoding) {
1113                                        # ok, we already have the right encoding
1114                                }
1115                                else {
1116                                        # uh oh, we should re-encode
1117                                }
1118                        }
1119                        else {
1120                                push @xh,
1121                                  'MIME-Version: 1.0',
1122                                  "Content-Type: text/plain; charset=$author_encoding",
1123                                  'Content-Transfer-Encoding: 8bit';
1124                        }
1125                }
1126        }
1127
1128        $needs_confirm = (
1129                $confirm eq "always" or
1130                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1131                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1132        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1133
1134        @cc = (@initial_cc, @cc);
1135
1136        send_message();
1137
1138        # set up for the next message
1139        if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
1140                $reply_to = $message_id;
1141                if (length $references > 0) {
1142                        $references .= "\n $message_id";
1143                } else {
1144                        $references = "$message_id";
1145                }
1146        }
1147        $message_id = undef;
1148}
1149
1150cleanup_compose_files();
1151
1152sub cleanup_compose_files() {
1153        unlink($compose_filename, $compose_filename . ".final") if $compose;
1154}
1155
1156$smtp->quit if $smtp;
1157
1158sub unique_email_list(@) {
1159        my %seen;
1160        my @emails;
1161
1162        foreach my $entry (@_) {
1163                if (my $clean = extract_valid_address($entry)) {
1164                        $seen{$clean} ||= 0;
1165                        next if $seen{$clean}++;
1166                        push @emails, $entry;
1167                } else {
1168                        print STDERR "W: unable to extract a valid address",
1169                                        " from: $entry\n";
1170                }
1171        }
1172        return @emails;
1173}
1174
1175sub validate_patch {
1176        my $fn = shift;
1177        open(my $fh, '<', $fn)
1178                or die "unable to open $fn: $!\n";
1179        while (my $line = <$fh>) {
1180                if (length($line) > 998) {
1181                        return "$.: patch contains a line longer than 998 characters";
1182                }
1183        }
1184        return undef;
1185}
1186
1187sub file_has_nonascii {
1188        my $fn = shift;
1189        open(my $fh, '<', $fn)
1190                or die "unable to open $fn: $!\n";
1191        while (my $line = <$fh>) {
1192                return 1 if $line =~ /[^[:ascii:]]/;
1193        }
1194        return 0;
1195}