git-send-email.perlon commit am: fix stgit patch mangling (45d51dc)
   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    "from" => \$sender,
 214);
 215
 216# Handle Uncouth Termination
 217sub signal_handler {
 218
 219        # Make text normal
 220        print color("reset"), "\n";
 221
 222        # SMTP password masked
 223        system "stty echo";
 224
 225        # tmp files from --compose
 226        if (defined $compose_filename) {
 227                if (-e $compose_filename) {
 228                        print "'$compose_filename' contains an intermediate version of the email you were composing.\n";
 229                }
 230                if (-e ($compose_filename . ".final")) {
 231                        print "'$compose_filename.final' contains the composed email.\n"
 232                }
 233        }
 234
 235        exit;
 236};
 237
 238$SIG{TERM} = \&signal_handler;
 239$SIG{INT}  = \&signal_handler;
 240
 241# Begin by accumulating all the variables (defined above), that we will end up
 242# needing, first, from the command line:
 243
 244my $rc = GetOptions("sender|from=s" => \$sender,
 245                    "in-reply-to=s" => \$initial_reply_to,
 246                    "subject=s" => \$initial_subject,
 247                    "to=s" => \@to,
 248                    "cc=s" => \@initial_cc,
 249                    "bcc=s" => \@bcclist,
 250                    "chain-reply-to!" => \$chain_reply_to,
 251                    "smtp-server=s" => \$smtp_server,
 252                    "smtp-server-port=s" => \$smtp_server_port,
 253                    "smtp-user=s" => \$smtp_authuser,
 254                    "smtp-pass:s" => \$smtp_authpass,
 255                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 256                    "smtp-encryption=s" => \$smtp_encryption,
 257                    "identity=s" => \$identity,
 258                    "annotate" => \$annotate,
 259                    "compose" => \$compose,
 260                    "quiet" => \$quiet,
 261                    "cc-cmd=s" => \$cc_cmd,
 262                    "suppress-from!" => \$suppress_from,
 263                    "suppress-cc=s" => \@suppress_cc,
 264                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 265                    "confirm=s" => \$confirm,
 266                    "dry-run" => \$dry_run,
 267                    "envelope-sender=s" => \$envelope_sender,
 268                    "thread!" => \$thread,
 269                    "validate!" => \$validate,
 270                    "format-patch!" => \$format_patch,
 271         );
 272
 273unless ($rc) {
 274    usage();
 275}
 276
 277die "Cannot run git format-patch from outside a repository\n"
 278        if $format_patch and not $repo;
 279
 280# Now, let's fill any that aren't set in with defaults:
 281
 282sub read_config {
 283        my ($prefix) = @_;
 284
 285        foreach my $setting (keys %config_bool_settings) {
 286                my $target = $config_bool_settings{$setting}->[0];
 287                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 288        }
 289
 290        foreach my $setting (keys %config_settings) {
 291                my $target = $config_settings{$setting};
 292                if (ref($target) eq "ARRAY") {
 293                        unless (@$target) {
 294                                my @values = Git::config(@repo, "$prefix.$setting");
 295                                @$target = @values if (@values && defined $values[0]);
 296                        }
 297                }
 298                else {
 299                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 300                }
 301        }
 302
 303        if (!defined $smtp_encryption) {
 304                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 305                if (defined $enc) {
 306                        $smtp_encryption = $enc;
 307                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 308                        $smtp_encryption = 'ssl';
 309                }
 310        }
 311}
 312
 313# read configuration from [sendemail "$identity"], fall back on [sendemail]
 314$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 315read_config("sendemail.$identity") if (defined $identity);
 316read_config("sendemail");
 317
 318# fall back on builtin bool defaults
 319foreach my $setting (values %config_bool_settings) {
 320        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 321}
 322
 323# 'default' encryption is none -- this only prevents a warning
 324$smtp_encryption = '' unless (defined $smtp_encryption);
 325
 326# Set CC suppressions
 327my(%suppress_cc);
 328if (@suppress_cc) {
 329        foreach my $entry (@suppress_cc) {
 330                die "Unknown --suppress-cc field: '$entry'\n"
 331                        unless $entry =~ /^(all|cccmd|cc|author|self|sob|body|bodycc)$/;
 332                $suppress_cc{$entry} = 1;
 333        }
 334}
 335
 336if ($suppress_cc{'all'}) {
 337        foreach my $entry (qw (ccmd cc author self sob body bodycc)) {
 338                $suppress_cc{$entry} = 1;
 339        }
 340        delete $suppress_cc{'all'};
 341}
 342
 343# If explicit old-style ones are specified, they trump --suppress-cc.
 344$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 345$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 346
 347if ($suppress_cc{'body'}) {
 348        foreach my $entry (qw (sob bodycc)) {
 349                $suppress_cc{$entry} = 1;
 350        }
 351        delete $suppress_cc{'body'};
 352}
 353
 354# Set confirm's default value
 355my $confirm_unconfigured = !defined $confirm;
 356if ($confirm_unconfigured) {
 357        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 358};
 359die "Unknown --confirm setting: '$confirm'\n"
 360        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 361
 362# Debugging, print out the suppressions.
 363if (0) {
 364        print "suppressions:\n";
 365        foreach my $entry (keys %suppress_cc) {
 366                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 367        }
 368}
 369
 370my ($repoauthor, $repocommitter);
 371($repoauthor) = Git::ident_person(@repo, 'author');
 372($repocommitter) = Git::ident_person(@repo, 'committer');
 373
 374# Verify the user input
 375
 376foreach my $entry (@to) {
 377        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 378}
 379
 380foreach my $entry (@initial_cc) {
 381        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 382}
 383
 384foreach my $entry (@bcclist) {
 385        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 386}
 387
 388sub parse_address_line {
 389        if ($have_mail_address) {
 390                return map { $_->format } Mail::Address->parse($_[0]);
 391        } else {
 392                return split_addrs($_[0]);
 393        }
 394}
 395
 396sub split_addrs {
 397        return quotewords('\s*,\s*', 1, @_);
 398}
 399
 400my %aliases;
 401my %parse_alias = (
 402        # multiline formats can be supported in the future
 403        mutt => sub { my $fh = shift; while (<$fh>) {
 404                if (/^\s*alias\s+(\S+)\s+(.*)$/) {
 405                        my ($alias, $addr) = ($1, $2);
 406                        $addr =~ s/#.*$//; # mutt allows # comments
 407                         # commas delimit multiple addresses
 408                        $aliases{$alias} = [ split_addrs($addr) ];
 409                }}},
 410        mailrc => sub { my $fh = shift; while (<$fh>) {
 411                if (/^alias\s+(\S+)\s+(.*)$/) {
 412                        # spaces delimit multiple addresses
 413                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 414                }}},
 415        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 416                for (my $x = ''; defined($x); $x = $_) {
 417                        chomp $x;
 418                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 419                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 420                        $aliases{$1} = [ split_addrs($2) ];
 421                }},
 422        elm => sub  { my $fh = shift;
 423                      while (<$fh>) {
 424                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 425                              my ($alias, $addr) = ($1, $2);
 426                               $aliases{$alias} = [ split_addrs($addr) ];
 427                          }
 428                      } },
 429
 430        gnus => sub { my $fh = shift; while (<$fh>) {
 431                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 432                        $aliases{$1} = [ $2 ];
 433                }}}
 434);
 435
 436if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 437        foreach my $file (@alias_files) {
 438                open my $fh, '<', $file or die "opening $file: $!\n";
 439                $parse_alias{$aliasfiletype}->($fh);
 440                close $fh;
 441        }
 442}
 443
 444($sender) = expand_aliases($sender) if defined $sender;
 445
 446# returns 1 if the conflict must be solved using it as a format-patch argument
 447sub check_file_rev_conflict($) {
 448        return unless $repo;
 449        my $f = shift;
 450        try {
 451                $repo->command('rev-parse', '--verify', '--quiet', $f);
 452                if (defined($format_patch)) {
 453                        print "foo\n";
 454                        return $format_patch;
 455                }
 456                die(<<EOF);
 457File '$f' exists but it could also be the range of commits
 458to produce patches for.  Please disambiguate by...
 459
 460    * Saying "./$f" if you mean a file; or
 461    * Giving --format-patch option if you mean a range.
 462EOF
 463        } catch Git::Error::Command with {
 464                return 0;
 465        }
 466}
 467
 468# Now that all the defaults are set, process the rest of the command line
 469# arguments and collect up the files that need to be processed.
 470my @rev_list_opts;
 471while (defined(my $f = shift @ARGV)) {
 472        if ($f eq "--") {
 473                push @rev_list_opts, "--", @ARGV;
 474                @ARGV = ();
 475        } elsif (-d $f and !check_file_rev_conflict($f)) {
 476                opendir(DH,$f)
 477                        or die "Failed to opendir $f: $!";
 478
 479                push @files, grep { -f $_ } map { +$f . "/" . $_ }
 480                                sort readdir(DH);
 481                closedir(DH);
 482        } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
 483                push @files, $f;
 484        } else {
 485                push @rev_list_opts, $f;
 486        }
 487}
 488
 489if (@rev_list_opts) {
 490        die "Cannot run git format-patch from outside a repository\n"
 491                unless $repo;
 492        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 493}
 494
 495if ($validate) {
 496        foreach my $f (@files) {
 497                unless (-p $f) {
 498                        my $error = validate_patch($f);
 499                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 500                }
 501        }
 502}
 503
 504if (@files) {
 505        unless ($quiet) {
 506                print $_,"\n" for (@files);
 507        }
 508} else {
 509        print STDERR "\nNo patch files specified!\n\n";
 510        usage();
 511}
 512
 513sub get_patch_subject($) {
 514        my $fn = shift;
 515        open (my $fh, '<', $fn);
 516        while (my $line = <$fh>) {
 517                next unless ($line =~ /^Subject: (.*)$/);
 518                close $fh;
 519                return "GIT: $1\n";
 520        }
 521        close $fh;
 522        die "No subject line in $fn ?";
 523}
 524
 525if ($compose) {
 526        # Note that this does not need to be secure, but we will make a small
 527        # effort to have it be unique
 528        $compose_filename = ($repo ?
 529                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 530                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 531        open(C,">",$compose_filename)
 532                or die "Failed to open for writing $compose_filename: $!";
 533
 534
 535        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 536        my $tpl_subject = $initial_subject || '';
 537        my $tpl_reply_to = $initial_reply_to || '';
 538
 539        print C <<EOT;
 540From $tpl_sender # This line is ignored.
 541GIT: Lines beginning in "GIT: " will be removed.
 542GIT: Consider including an overall diffstat or table of contents
 543GIT: for the patch you are writing.
 544GIT:
 545GIT: Clear the body content if you don't wish to send a summary.
 546From: $tpl_sender
 547Subject: $tpl_subject
 548In-Reply-To: $tpl_reply_to
 549
 550EOT
 551        for my $f (@files) {
 552                print C get_patch_subject($f);
 553        }
 554        close(C);
 555
 556        my $editor = $ENV{GIT_EDITOR} || Git::config(@repo, "core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 557
 558        if ($annotate) {
 559                do_edit($compose_filename, @files);
 560        } else {
 561                do_edit($compose_filename);
 562        }
 563
 564        open(C2,">",$compose_filename . ".final")
 565                or die "Failed to open $compose_filename.final : " . $!;
 566
 567        open(C,"<",$compose_filename)
 568                or die "Failed to open $compose_filename : " . $!;
 569
 570        my $need_8bit_cte = file_has_nonascii($compose_filename);
 571        my $in_body = 0;
 572        my $summary_empty = 1;
 573        while(<C>) {
 574                next if m/^GIT: /;
 575                if ($in_body) {
 576                        $summary_empty = 0 unless (/^\n$/);
 577                } elsif (/^\n$/) {
 578                        $in_body = 1;
 579                        if ($need_8bit_cte) {
 580                                print C2 "MIME-Version: 1.0\n",
 581                                         "Content-Type: text/plain; ",
 582                                           "charset=utf-8\n",
 583                                         "Content-Transfer-Encoding: 8bit\n";
 584                        }
 585                } elsif (/^MIME-Version:/i) {
 586                        $need_8bit_cte = 0;
 587                } elsif (/^Subject:\s*(.+)\s*$/i) {
 588                        $initial_subject = $1;
 589                        my $subject = $initial_subject;
 590                        $_ = "Subject: " .
 591                                ($subject =~ /[^[:ascii:]]/ ?
 592                                 quote_rfc2047($subject) :
 593                                 $subject) .
 594                                "\n";
 595                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 596                        $initial_reply_to = $1;
 597                        next;
 598                } elsif (/^From:\s*(.+)\s*$/i) {
 599                        $sender = $1;
 600                        next;
 601                } elsif (/^(?:To|Cc|Bcc):/i) {
 602                        print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n";
 603                        next;
 604                }
 605                print C2 $_;
 606        }
 607        close(C);
 608        close(C2);
 609
 610        if ($summary_empty) {
 611                print "Summary email is empty, skipping it\n";
 612                $compose = -1;
 613        }
 614} elsif ($annotate) {
 615        do_edit(@files);
 616}
 617
 618sub ask {
 619        my ($prompt, %arg) = @_;
 620        my $valid_re = $arg{valid_re};
 621        my $default = $arg{default};
 622        my $resp;
 623        my $i = 0;
 624        return defined $default ? $default : undef
 625                unless defined $term->IN and defined fileno($term->IN) and
 626                       defined $term->OUT and defined fileno($term->OUT);
 627        while ($i++ < 10) {
 628                $resp = $term->readline($prompt);
 629                if (!defined $resp) { # EOF
 630                        print "\n";
 631                        return defined $default ? $default : undef;
 632                }
 633                if ($resp eq '' and defined $default) {
 634                        return $default;
 635                }
 636                if (!defined $valid_re or $resp =~ /$valid_re/) {
 637                        return $resp;
 638                }
 639        }
 640        return undef;
 641}
 642
 643my $prompting = 0;
 644if (!defined $sender) {
 645        $sender = $repoauthor || $repocommitter || '';
 646        $sender = ask("Who should the emails appear to be from? [$sender] ",
 647                      default => $sender);
 648        print "Emails will be sent from: ", $sender, "\n";
 649        $prompting++;
 650}
 651
 652if (!@to) {
 653        my $to = ask("Who should the emails be sent to? ");
 654        push @to, parse_address_line($to) if defined $to; # sanitized/validated later
 655        $prompting++;
 656}
 657
 658sub expand_aliases {
 659        my @cur = @_;
 660        my @last;
 661        do {
 662                @last = @cur;
 663                @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 664        } while (join(',',@cur) ne join(',',@last));
 665        return @cur;
 666}
 667
 668@to = expand_aliases(@to);
 669@to = (map { sanitize_address($_) } @to);
 670@initial_cc = expand_aliases(@initial_cc);
 671@bcclist = expand_aliases(@bcclist);
 672
 673if ($thread && !defined $initial_reply_to && $prompting) {
 674        $initial_reply_to = ask(
 675                "Message-ID to be used as In-Reply-To for the first email? ");
 676}
 677if (defined $initial_reply_to) {
 678        $initial_reply_to =~ s/^\s*<?//;
 679        $initial_reply_to =~ s/>?\s*$//;
 680        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 681}
 682
 683if (!defined $smtp_server) {
 684        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 685                if (-x $_) {
 686                        $smtp_server = $_;
 687                        last;
 688                }
 689        }
 690        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 691}
 692
 693if ($compose && $compose > 0) {
 694        @files = ($compose_filename . ".final", @files);
 695}
 696
 697# Variables we set as part of the loop over files
 698our ($message_id, %mail, $subject, $reply_to, $references, $message,
 699        $needs_confirm, $message_num, $ask_default);
 700
 701sub extract_valid_address {
 702        my $address = shift;
 703        my $local_part_regexp = '[^<>"\s@]+';
 704        my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 705
 706        # check for a local address:
 707        return $address if ($address =~ /^($local_part_regexp)$/);
 708
 709        $address =~ s/^\s*<(.*)>\s*$/$1/;
 710        if ($have_email_valid) {
 711                return scalar Email::Valid->address($address);
 712        } else {
 713                # less robust/correct than the monster regexp in Email::Valid,
 714                # but still does a 99% job, and one less dependency
 715                $address =~ /($local_part_regexp\@$domain_regexp)/;
 716                return $1;
 717        }
 718}
 719
 720# Usually don't need to change anything below here.
 721
 722# we make a "fake" message id by taking the current number
 723# of seconds since the beginning of Unix time and tacking on
 724# a random number to the end, in case we are called quicker than
 725# 1 second since the last time we were called.
 726
 727# We'll setup a template for the message id, using the "from" address:
 728
 729my ($message_id_stamp, $message_id_serial);
 730sub make_message_id
 731{
 732        my $uniq;
 733        if (!defined $message_id_stamp) {
 734                $message_id_stamp = sprintf("%s-%s", time, $$);
 735                $message_id_serial = 0;
 736        }
 737        $message_id_serial++;
 738        $uniq = "$message_id_stamp-$message_id_serial";
 739
 740        my $du_part;
 741        for ($sender, $repocommitter, $repoauthor) {
 742                $du_part = extract_valid_address(sanitize_address($_));
 743                last if (defined $du_part and $du_part ne '');
 744        }
 745        if (not defined $du_part or $du_part eq '') {
 746                use Sys::Hostname qw();
 747                $du_part = 'user@' . Sys::Hostname::hostname();
 748        }
 749        my $message_id_template = "<%s-git-send-email-%s>";
 750        $message_id = sprintf($message_id_template, $uniq, $du_part);
 751        #print "new message id = $message_id\n"; # Was useful for debugging
 752}
 753
 754
 755
 756$time = time - scalar $#files;
 757
 758sub unquote_rfc2047 {
 759        local ($_) = @_;
 760        my $encoding;
 761        if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 762                $encoding = $1;
 763                s/_/ /g;
 764                s/=([0-9A-F]{2})/chr(hex($1))/eg;
 765        }
 766        return wantarray ? ($_, $encoding) : $_;
 767}
 768
 769sub quote_rfc2047 {
 770        local $_ = shift;
 771        my $encoding = shift || 'utf-8';
 772        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 773        s/(.*)/=\?$encoding\?q\?$1\?=/;
 774        return $_;
 775}
 776
 777# use the simplest quoting being able to handle the recipient
 778sub sanitize_address
 779{
 780        my ($recipient) = @_;
 781        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 782
 783        if (not $recipient_name) {
 784                return "$recipient";
 785        }
 786
 787        # if recipient_name is already quoted, do nothing
 788        if ($recipient_name =~ /^("[[:ascii:]]*"|=\?utf-8\?q\?.*\?=)$/) {
 789                return $recipient;
 790        }
 791
 792        # rfc2047 is needed if a non-ascii char is included
 793        if ($recipient_name =~ /[^[:ascii:]]/) {
 794                $recipient_name =~ s/^"(.*)"$/$1/;
 795                $recipient_name = quote_rfc2047($recipient_name);
 796        }
 797
 798        # double quotes are needed if specials or CTLs are included
 799        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 800                $recipient_name =~ s/(["\\\r])/\\$1/g;
 801                $recipient_name = "\"$recipient_name\"";
 802        }
 803
 804        return "$recipient_name $recipient_addr";
 805
 806}
 807
 808sub send_message
 809{
 810        my @recipients = unique_email_list(@to);
 811        @cc = (grep { my $cc = extract_valid_address($_);
 812                      not grep { $cc eq $_ } @recipients
 813                    }
 814               map { sanitize_address($_) }
 815               @cc);
 816        my $to = join (",\n\t", @recipients);
 817        @recipients = unique_email_list(@recipients,@cc,@bcclist);
 818        @recipients = (map { extract_valid_address($_) } @recipients);
 819        my $date = format_2822_time($time++);
 820        my $gitversion = '@@GIT_VERSION@@';
 821        if ($gitversion =~ m/..GIT_VERSION../) {
 822            $gitversion = Git::version();
 823        }
 824
 825        my $cc = join(", ", unique_email_list(@cc));
 826        my $ccline = "";
 827        if ($cc ne '') {
 828                $ccline = "\nCc: $cc";
 829        }
 830        my $sanitized_sender = sanitize_address($sender);
 831        make_message_id() unless defined($message_id);
 832
 833        my $header = "From: $sanitized_sender
 834To: $to${ccline}
 835Subject: $subject
 836Date: $date
 837Message-Id: $message_id
 838X-Mailer: git-send-email $gitversion
 839";
 840        if ($reply_to) {
 841
 842                $header .= "In-Reply-To: $reply_to\n";
 843                $header .= "References: $references\n";
 844        }
 845        if (@xh) {
 846                $header .= join("\n", @xh) . "\n";
 847        }
 848
 849        my @sendmail_parameters = ('-i', @recipients);
 850        my $raw_from = $sanitized_sender;
 851        $raw_from = $envelope_sender if (defined $envelope_sender);
 852        $raw_from = extract_valid_address($raw_from);
 853        unshift (@sendmail_parameters,
 854                        '-f', $raw_from) if(defined $envelope_sender);
 855
 856        if ($needs_confirm && !$dry_run) {
 857                print "\n$header\n";
 858                if ($needs_confirm eq "inform") {
 859                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
 860                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
 861                        print "    The Cc list above has been expanded by additional\n";
 862                        print "    addresses found in the patch commit message. By default\n";
 863                        print "    send-email prompts before sending whenever this occurs.\n";
 864                        print "    This behavior is controlled by the sendemail.confirm\n";
 865                        print "    configuration setting.\n";
 866                        print "\n";
 867                        print "    For additional information, run 'git send-email --help'.\n";
 868                        print "    To retain the current behavior, but squelch this message,\n";
 869                        print "    run 'git config --global sendemail.confirm auto'.\n\n";
 870                }
 871                $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ",
 872                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
 873                         default => $ask_default);
 874                die "Send this email reply required" unless defined $_;
 875                if (/^n/i) {
 876                        return;
 877                } elsif (/^q/i) {
 878                        cleanup_compose_files();
 879                        exit(0);
 880                } elsif (/^a/i) {
 881                        $confirm = 'never';
 882                }
 883        }
 884
 885        if ($dry_run) {
 886                # We don't want to send the email.
 887        } elsif ($smtp_server =~ m#^/#) {
 888                my $pid = open my $sm, '|-';
 889                defined $pid or die $!;
 890                if (!$pid) {
 891                        exec($smtp_server, @sendmail_parameters) or die $!;
 892                }
 893                print $sm "$header\n$message";
 894                close $sm or die $?;
 895        } else {
 896
 897                if (!defined $smtp_server) {
 898                        die "The required SMTP server is not properly defined."
 899                }
 900
 901                if ($smtp_encryption eq 'ssl') {
 902                        $smtp_server_port ||= 465; # ssmtp
 903                        require Net::SMTP::SSL;
 904                        $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
 905                }
 906                else {
 907                        require Net::SMTP;
 908                        $smtp ||= Net::SMTP->new((defined $smtp_server_port)
 909                                                 ? "$smtp_server:$smtp_server_port"
 910                                                 : $smtp_server);
 911                        if ($smtp_encryption eq 'tls') {
 912                                require Net::SMTP::SSL;
 913                                $smtp->command('STARTTLS');
 914                                $smtp->response();
 915                                if ($smtp->code == 220) {
 916                                        $smtp = Net::SMTP::SSL->start_SSL($smtp)
 917                                                or die "STARTTLS failed! ".$smtp->message;
 918                                        $smtp_encryption = '';
 919                                        # Send EHLO again to receive fresh
 920                                        # supported commands
 921                                        $smtp->hello();
 922                                } else {
 923                                        die "Server does not support STARTTLS! ".$smtp->message;
 924                                }
 925                        }
 926                }
 927
 928                if (!$smtp) {
 929                        die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
 930                }
 931
 932                if (defined $smtp_authuser) {
 933
 934                        if (!defined $smtp_authpass) {
 935
 936                                system "stty -echo";
 937
 938                                do {
 939                                        print "Password: ";
 940                                        $_ = <STDIN>;
 941                                        print "\n";
 942                                } while (!defined $_);
 943
 944                                chomp($smtp_authpass = $_);
 945
 946                                system "stty echo";
 947                        }
 948
 949                        $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 950                }
 951
 952                $smtp->mail( $raw_from ) or die $smtp->message;
 953                $smtp->to( @recipients ) or die $smtp->message;
 954                $smtp->data or die $smtp->message;
 955                $smtp->datasend("$header\n$message") or die $smtp->message;
 956                $smtp->dataend() or die $smtp->message;
 957                $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 958        }
 959        if ($quiet) {
 960                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 961        } else {
 962                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
 963                if ($smtp_server !~ m#^/#) {
 964                        print "Server: $smtp_server\n";
 965                        print "MAIL FROM:<$raw_from>\n";
 966                        print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 967                } else {
 968                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 969                }
 970                print $header, "\n";
 971                if ($smtp) {
 972                        print "Result: ", $smtp->code, ' ',
 973                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 974                } else {
 975                        print "Result: OK\n";
 976                }
 977        }
 978}
 979
 980$reply_to = $initial_reply_to;
 981$references = $initial_reply_to || '';
 982$subject = $initial_subject;
 983$message_num = 0;
 984
 985foreach my $t (@files) {
 986        open(F,"<",$t) or die "can't open file $t";
 987
 988        my $author = undef;
 989        my $author_encoding;
 990        my $has_content_type;
 991        my $body_encoding;
 992        @cc = ();
 993        @xh = ();
 994        my $input_format = undef;
 995        my @header = ();
 996        $message = "";
 997        $message_num++;
 998        # First unfold multiline header fields
 999        while(<F>) {
1000                last if /^\s*$/;
1001                if (/^\s+\S/ and @header) {
1002                        chomp($header[$#header]);
1003                        s/^\s+/ /;
1004                        $header[$#header] .= $_;
1005            } else {
1006                        push(@header, $_);
1007                }
1008        }
1009        # Now parse the header
1010        foreach(@header) {
1011                if (/^From /) {
1012                        $input_format = 'mbox';
1013                        next;
1014                }
1015                chomp;
1016                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1017                        $input_format = 'mbox';
1018                }
1019
1020                if (defined $input_format && $input_format eq 'mbox') {
1021                        if (/^Subject:\s+(.*)$/) {
1022                                $subject = $1;
1023                        }
1024                        elsif (/^From:\s+(.*)$/) {
1025                                ($author, $author_encoding) = unquote_rfc2047($1);
1026                                next if $suppress_cc{'author'};
1027                                next if $suppress_cc{'self'} and $author eq $sender;
1028                                printf("(mbox) Adding cc: %s from line '%s'\n",
1029                                        $1, $_) unless $quiet;
1030                                push @cc, $1;
1031                        }
1032                        elsif (/^Cc:\s+(.*)$/) {
1033                                foreach my $addr (parse_address_line($1)) {
1034                                        if (unquote_rfc2047($addr) eq $sender) {
1035                                                next if ($suppress_cc{'self'});
1036                                        } else {
1037                                                next if ($suppress_cc{'cc'});
1038                                        }
1039                                        printf("(mbox) Adding cc: %s from line '%s'\n",
1040                                                $addr, $_) unless $quiet;
1041                                        push @cc, $addr;
1042                                }
1043                        }
1044                        elsif (/^Content-type:/i) {
1045                                $has_content_type = 1;
1046                                if (/charset="?([^ "]+)/) {
1047                                        $body_encoding = $1;
1048                                }
1049                                push @xh, $_;
1050                        }
1051                        elsif (/^Message-Id: (.*)/i) {
1052                                $message_id = $1;
1053                        }
1054                        elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
1055                                push @xh, $_;
1056                        }
1057
1058                } else {
1059                        # In the traditional
1060                        # "send lots of email" format,
1061                        # line 1 = cc
1062                        # line 2 = subject
1063                        # So let's support that, too.
1064                        $input_format = 'lots';
1065                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1066                                printf("(non-mbox) Adding cc: %s from line '%s'\n",
1067                                        $_, $_) unless $quiet;
1068                                push @cc, $_;
1069                        } elsif (!defined $subject) {
1070                                $subject = $_;
1071                        }
1072                }
1073        }
1074        # Now parse the message body
1075        while(<F>) {
1076                $message .=  $_;
1077                if (/^(Signed-off-by|Cc): (.*)$/i) {
1078                        chomp;
1079                        my ($what, $c) = ($1, $2);
1080                        chomp $c;
1081                        if ($c eq $sender) {
1082                                next if ($suppress_cc{'self'});
1083                        } else {
1084                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1085                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1086                        }
1087                        push @cc, $c;
1088                        printf("(body) Adding cc: %s from line '%s'\n",
1089                                $c, $_) unless $quiet;
1090                }
1091        }
1092        close F;
1093
1094        if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
1095                open(F, "$cc_cmd $t |")
1096                        or die "(cc-cmd) Could not execute '$cc_cmd'";
1097                while(<F>) {
1098                        my $c = $_;
1099                        $c =~ s/^\s*//g;
1100                        $c =~ s/\n$//g;
1101                        next if ($c eq $sender and $suppress_from);
1102                        push @cc, $c;
1103                        printf("(cc-cmd) Adding cc: %s from: '%s'\n",
1104                                $c, $cc_cmd) unless $quiet;
1105                }
1106                close F
1107                        or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
1108        }
1109
1110        if (defined $author and $author ne $sender) {
1111                $message = "From: $author\n\n$message";
1112                if (defined $author_encoding) {
1113                        if ($has_content_type) {
1114                                if ($body_encoding eq $author_encoding) {
1115                                        # ok, we already have the right encoding
1116                                }
1117                                else {
1118                                        # uh oh, we should re-encode
1119                                }
1120                        }
1121                        else {
1122                                push @xh,
1123                                  'MIME-Version: 1.0',
1124                                  "Content-Type: text/plain; charset=$author_encoding",
1125                                  'Content-Transfer-Encoding: 8bit';
1126                        }
1127                }
1128        }
1129
1130        $needs_confirm = (
1131                $confirm eq "always" or
1132                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1133                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1134        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1135
1136        @cc = (@initial_cc, @cc);
1137
1138        send_message();
1139
1140        # set up for the next message
1141        if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
1142                $reply_to = $message_id;
1143                if (length $references > 0) {
1144                        $references .= "\n $message_id";
1145                } else {
1146                        $references = "$message_id";
1147                }
1148        }
1149        $message_id = undef;
1150}
1151
1152cleanup_compose_files();
1153
1154sub cleanup_compose_files() {
1155        unlink($compose_filename, $compose_filename . ".final") if $compose;
1156}
1157
1158$smtp->quit if $smtp;
1159
1160sub unique_email_list(@) {
1161        my %seen;
1162        my @emails;
1163
1164        foreach my $entry (@_) {
1165                if (my $clean = extract_valid_address($entry)) {
1166                        $seen{$clean} ||= 0;
1167                        next if $seen{$clean}++;
1168                        push @emails, $entry;
1169                } else {
1170                        print STDERR "W: unable to extract a valid address",
1171                                        " from: $entry\n";
1172                }
1173        }
1174        return @emails;
1175}
1176
1177sub validate_patch {
1178        my $fn = shift;
1179        open(my $fh, '<', $fn)
1180                or die "unable to open $fn: $!\n";
1181        while (my $line = <$fh>) {
1182                if (length($line) > 998) {
1183                        return "$.: patch contains a line longer than 998 characters";
1184                }
1185        }
1186        return undef;
1187}
1188
1189sub file_has_nonascii {
1190        my $fn = shift;
1191        open(my $fh, '<', $fn)
1192                or die "unable to open $fn: $!\n";
1193        while (my $line = <$fh>) {
1194                return 1 if $line =~ /[^[:ascii:]]/;
1195        }
1196        return 0;
1197}