git-send-email.perlon commit sha1_file.c: resolve confusion EACCES vs EPERM (3524357)
   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 Data::Dumper;
  24use Term::ANSIColor;
  25use Git;
  26
  27package FakeTerm;
  28sub new {
  29        my ($class, $reason) = @_;
  30        return bless \$reason, shift;
  31}
  32sub readline {
  33        my $self = shift;
  34        die "Cannot use readline on FakeTerm: $$self";
  35}
  36package main;
  37
  38
  39sub usage {
  40        print <<EOT;
  41git send-email [options] <file | directory>...
  42Options:
  43   --from         Specify the "From:" line of the email to be sent.
  44
  45   --to           Specify the primary "To:" line of the email.
  46
  47   --cc           Specify an initial "Cc:" list for the entire series
  48                  of emails.
  49
  50   --cc-cmd       Specify a command to execute per file which adds
  51                  per file specific cc address entries
  52
  53   --bcc          Specify a list of email addresses that should be Bcc:
  54                  on all the emails.
  55
  56   --compose      Use \$GIT_EDITOR, core.editor, \$EDITOR, or \$VISUAL to edit
  57                  an introductory message for the patch series.
  58
  59   --subject      Specify the initial "Subject:" line.
  60                  Only necessary if --compose is also set.  If --compose
  61                  is not set, this will be prompted for.
  62
  63   --in-reply-to  Specify the first "In-Reply-To:" header line.
  64                  Only used if --compose is also set.  If --compose is not
  65                  set, this will be prompted for.
  66
  67   --chain-reply-to If set, the replies will all be to the previous
  68                  email sent, rather than to the first email sent.
  69                  Defaults to on.
  70
  71   --signed-off-cc Automatically add email addresses that appear in
  72                 Signed-off-by: or Cc: lines to the cc: list. Defaults to on.
  73
  74   --identity     The configuration identity, a subsection to prioritise over
  75                  the default section.
  76
  77   --smtp-server  If set, specifies the outgoing SMTP server to use.
  78                  Defaults to localhost.  Port number can be specified here with
  79                  hostname:port format or by using --smtp-server-port option.
  80
  81   --smtp-server-port Specify a port on the outgoing SMTP server to connect to.
  82
  83   --smtp-user    The username for SMTP-AUTH.
  84
  85   --smtp-pass    The password for SMTP-AUTH.
  86
  87   --smtp-encryption Specify 'tls' for STARTTLS encryption, or 'ssl' for SSL.
  88                  Any other value disables the feature.
  89
  90   --smtp-ssl     Synonym for '--smtp-encryption=ssl'.  Deprecated.
  91
  92   --suppress-cc  Suppress the specified category of auto-CC.  The category
  93                  can be one of 'author' for the patch author, 'self' to
  94                  avoid copying yourself, 'sob' for Signed-off-by lines,
  95                  'cccmd' for the output of the cccmd, or 'all' to suppress
  96                  all of these.
  97
  98   --suppress-from Suppress sending emails to yourself. Defaults to off.
  99
 100   --thread       Specify that the "In-Reply-To:" header should be set on all
 101                  emails. Defaults to on.
 102
 103   --quiet        Make git-send-email less verbose.  One line per email
 104                  should be all that is output.
 105
 106   --dry-run      Do everything except actually send the emails.
 107
 108   --envelope-sender    Specify the envelope sender used to send the emails.
 109
 110   --no-validate        Don't perform any sanity checks on patches.
 111
 112EOT
 113        exit(1);
 114}
 115
 116# most mail servers generate the Date: header, but not all...
 117sub format_2822_time {
 118        my ($time) = @_;
 119        my @localtm = localtime($time);
 120        my @gmttm = gmtime($time);
 121        my $localmin = $localtm[1] + $localtm[2] * 60;
 122        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 123        if ($localtm[0] != $gmttm[0]) {
 124                die "local zone differs from GMT by a non-minute interval\n";
 125        }
 126        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 127                $localmin += 1440;
 128        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 129                $localmin -= 1440;
 130        } elsif ($gmttm[6] != $localtm[6]) {
 131                die "local time offset greater than or equal to 24 hours\n";
 132        }
 133        my $offset = $localmin - $gmtmin;
 134        my $offhour = $offset / 60;
 135        my $offmin = abs($offset % 60);
 136        if (abs($offhour) >= 24) {
 137                die ("local time offset greater than or equal to 24 hours\n");
 138        }
 139
 140        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 141                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 142                       $localtm[3],
 143                       qw(Jan Feb Mar Apr May Jun
 144                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 145                       $localtm[5]+1900,
 146                       $localtm[2],
 147                       $localtm[1],
 148                       $localtm[0],
 149                       ($offset >= 0) ? '+' : '-',
 150                       abs($offhour),
 151                       $offmin,
 152                       );
 153}
 154
 155my $have_email_valid = eval { require Email::Valid; 1 };
 156my $smtp;
 157my $auth;
 158
 159sub unique_email_list(@);
 160sub cleanup_compose_files();
 161
 162# Constants (essentially)
 163my $compose_filename = ".msg.$$";
 164
 165# Variables we fill in automatically, or via prompting:
 166my (@to,@cc,@initial_cc,@bcclist,@xh,
 167        $initial_reply_to,$initial_subject,@files,$author,$sender,$smtp_authpass,$compose,$time);
 168
 169my $envelope_sender;
 170
 171# Example reply to:
 172#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 173
 174my $repo = eval { Git->repository() };
 175my @repo = $repo ? ($repo) : ();
 176my $term = eval {
 177        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 178                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 179                : new Term::ReadLine 'git-send-email';
 180};
 181if ($@) {
 182        $term = new FakeTerm "$@: going non-interactive";
 183}
 184
 185# Behavior modification variables
 186my ($quiet, $dry_run) = (0, 0);
 187
 188# Variables with corresponding config settings
 189my ($thread, $chain_reply_to, $suppress_from, $signed_off_cc, $cc_cmd);
 190my ($smtp_server, $smtp_server_port, $smtp_authuser, $smtp_encryption);
 191my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts);
 192my ($no_validate);
 193my (@suppress_cc);
 194
 195my %config_bool_settings = (
 196    "thread" => [\$thread, 1],
 197    "chainreplyto" => [\$chain_reply_to, 1],
 198    "suppressfrom" => [\$suppress_from, undef],
 199    "signedoffcc" => [\$signed_off_cc, undef],
 200);
 201
 202my %config_settings = (
 203    "smtpserver" => \$smtp_server,
 204    "smtpserverport" => \$smtp_server_port,
 205    "smtpuser" => \$smtp_authuser,
 206    "smtppass" => \$smtp_authpass,
 207    "to" => \@to,
 208    "cc" => \@initial_cc,
 209    "cccmd" => \$cc_cmd,
 210    "aliasfiletype" => \$aliasfiletype,
 211    "bcc" => \@bcclist,
 212    "aliasesfile" => \@alias_files,
 213    "suppresscc" => \@suppress_cc,
 214    "envelopesender" => \$envelope_sender,
 215);
 216
 217# Handle Uncouth Termination
 218sub signal_handler {
 219
 220        # Make text normal
 221        print color("reset"), "\n";
 222
 223        # SMTP password masked
 224        system "stty echo";
 225
 226        # tmp files from --compose
 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        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 { $smtp_encryption = 'ssl' },
 255                    "smtp-encryption=s" => \$smtp_encryption,
 256                    "identity=s" => \$identity,
 257                    "compose" => \$compose,
 258                    "quiet" => \$quiet,
 259                    "cc-cmd=s" => \$cc_cmd,
 260                    "suppress-from!" => \$suppress_from,
 261                    "suppress-cc=s" => \@suppress_cc,
 262                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_cc,
 263                    "dry-run" => \$dry_run,
 264                    "envelope-sender=s" => \$envelope_sender,
 265                    "thread!" => \$thread,
 266                    "no-validate" => \$no_validate,
 267         );
 268
 269unless ($rc) {
 270    usage();
 271}
 272
 273# Now, let's fill any that aren't set in with defaults:
 274
 275sub read_config {
 276        my ($prefix) = @_;
 277
 278        foreach my $setting (keys %config_bool_settings) {
 279                my $target = $config_bool_settings{$setting}->[0];
 280                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 281        }
 282
 283        foreach my $setting (keys %config_settings) {
 284                my $target = $config_settings{$setting};
 285                if (ref($target) eq "ARRAY") {
 286                        unless (@$target) {
 287                                my @values = Git::config(@repo, "$prefix.$setting");
 288                                @$target = @values if (@values && defined $values[0]);
 289                        }
 290                }
 291                else {
 292                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 293                }
 294        }
 295
 296        if (!defined $smtp_encryption) {
 297                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 298                if (defined $enc) {
 299                        $smtp_encryption = $enc;
 300                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 301                        $smtp_encryption = 'ssl';
 302                }
 303        }
 304}
 305
 306# read configuration from [sendemail "$identity"], fall back on [sendemail]
 307$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 308read_config("sendemail.$identity") if (defined $identity);
 309read_config("sendemail");
 310
 311# fall back on builtin bool defaults
 312foreach my $setting (values %config_bool_settings) {
 313        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 314}
 315
 316# 'default' encryption is none -- this only prevents a warning
 317$smtp_encryption = '' unless (defined $smtp_encryption);
 318
 319# Set CC suppressions
 320my(%suppress_cc);
 321if (@suppress_cc) {
 322        foreach my $entry (@suppress_cc) {
 323                die "Unknown --suppress-cc field: '$entry'\n"
 324                        unless $entry =~ /^(all|cccmd|cc|author|self|sob)$/;
 325                $suppress_cc{$entry} = 1;
 326        }
 327}
 328
 329if ($suppress_cc{'all'}) {
 330        foreach my $entry (qw (ccmd cc author self sob)) {
 331                $suppress_cc{$entry} = 1;
 332        }
 333        delete $suppress_cc{'all'};
 334}
 335
 336# If explicit old-style ones are specified, they trump --suppress-cc.
 337$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 338$suppress_cc{'sob'} = !$signed_off_cc if defined $signed_off_cc;
 339
 340# Debugging, print out the suppressions.
 341if (0) {
 342        print "suppressions:\n";
 343        foreach my $entry (keys %suppress_cc) {
 344                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 345        }
 346}
 347
 348my ($repoauthor, $repocommitter);
 349($repoauthor) = Git::ident_person(@repo, 'author');
 350($repocommitter) = Git::ident_person(@repo, 'committer');
 351
 352# Verify the user input
 353
 354foreach my $entry (@to) {
 355        die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
 356}
 357
 358foreach my $entry (@initial_cc) {
 359        die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
 360}
 361
 362foreach my $entry (@bcclist) {
 363        die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
 364}
 365
 366my %aliases;
 367my %parse_alias = (
 368        # multiline formats can be supported in the future
 369        mutt => sub { my $fh = shift; while (<$fh>) {
 370                if (/^\s*alias\s+(\S+)\s+(.*)$/) {
 371                        my ($alias, $addr) = ($1, $2);
 372                        $addr =~ s/#.*$//; # mutt allows # comments
 373                         # commas delimit multiple addresses
 374                        $aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
 375                }}},
 376        mailrc => sub { my $fh = shift; while (<$fh>) {
 377                if (/^alias\s+(\S+)\s+(.*)$/) {
 378                        # spaces delimit multiple addresses
 379                        $aliases{$1} = [ split(/\s+/, $2) ];
 380                }}},
 381        pine => sub { my $fh = shift; while (<$fh>) {
 382                if (/^(\S+)\t.*\t(.*)$/) {
 383                        $aliases{$1} = [ split(/\s*,\s*/, $2) ];
 384                }}},
 385        gnus => sub { my $fh = shift; while (<$fh>) {
 386                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 387                        $aliases{$1} = [ $2 ];
 388                }}}
 389);
 390
 391if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 392        foreach my $file (@alias_files) {
 393                open my $fh, '<', $file or die "opening $file: $!\n";
 394                $parse_alias{$aliasfiletype}->($fh);
 395                close $fh;
 396        }
 397}
 398
 399($sender) = expand_aliases($sender) if defined $sender;
 400
 401# Now that all the defaults are set, process the rest of the command line
 402# arguments and collect up the files that need to be processed.
 403for my $f (@ARGV) {
 404        if (-d $f) {
 405                opendir(DH,$f)
 406                        or die "Failed to opendir $f: $!";
 407
 408                push @files, grep { -f $_ } map { +$f . "/" . $_ }
 409                                sort readdir(DH);
 410                closedir(DH);
 411        } elsif (-f $f or -p $f) {
 412                push @files, $f;
 413        } else {
 414                print STDERR "Skipping $f - not found.\n";
 415        }
 416}
 417
 418if (!$no_validate) {
 419        foreach my $f (@files) {
 420                unless (-p $f) {
 421                        my $error = validate_patch($f);
 422                        $error and die "fatal: $f: $error\nwarning: no patches were sent\n";
 423                }
 424        }
 425}
 426
 427if (@files) {
 428        unless ($quiet) {
 429                print $_,"\n" for (@files);
 430        }
 431} else {
 432        print STDERR "\nNo patch files specified!\n\n";
 433        usage();
 434}
 435
 436my $prompting = 0;
 437if (!defined $sender) {
 438        $sender = $repoauthor || $repocommitter || '';
 439
 440        while (1) {
 441                $_ = $term->readline("Who should the emails appear to be from? [$sender] ");
 442                last if defined $_;
 443                print "\n";
 444        }
 445
 446        $sender = $_ if ($_);
 447        print "Emails will be sent from: ", $sender, "\n";
 448        $prompting++;
 449}
 450
 451if (!@to) {
 452
 453
 454        while (1) {
 455                $_ = $term->readline("Who should the emails be sent to? ", "");
 456                last if defined $_;
 457                print "\n";
 458        }
 459
 460        my $to = $_;
 461        push @to, split /,\s*/, $to;
 462        $prompting++;
 463}
 464
 465sub expand_aliases {
 466        my @cur = @_;
 467        my @last;
 468        do {
 469                @last = @cur;
 470                @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
 471        } while (join(',',@cur) ne join(',',@last));
 472        return @cur;
 473}
 474
 475@to = expand_aliases(@to);
 476@to = (map { sanitize_address($_) } @to);
 477@initial_cc = expand_aliases(@initial_cc);
 478@bcclist = expand_aliases(@bcclist);
 479
 480if (!defined $initial_subject && $compose) {
 481        while (1) {
 482                $_ = $term->readline("What subject should the initial email start with? ", $initial_subject);
 483                last if defined $_;
 484                print "\n";
 485        }
 486
 487        $initial_subject = $_;
 488        $prompting++;
 489}
 490
 491if ($thread && !defined $initial_reply_to && $prompting) {
 492        while (1) {
 493                $_= $term->readline("Message-ID to be used as In-Reply-To for the first email? ", $initial_reply_to);
 494                last if defined $_;
 495                print "\n";
 496        }
 497
 498        $initial_reply_to = $_;
 499}
 500if (defined $initial_reply_to) {
 501        $initial_reply_to =~ s/^\s*<?//;
 502        $initial_reply_to =~ s/>?\s*$//;
 503        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 504}
 505
 506if (!defined $smtp_server) {
 507        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 508                if (-x $_) {
 509                        $smtp_server = $_;
 510                        last;
 511                }
 512        }
 513        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 514}
 515
 516if ($compose) {
 517        # Note that this does not need to be secure, but we will make a small
 518        # effort to have it be unique
 519        open(C,">",$compose_filename)
 520                or die "Failed to open for writing $compose_filename: $!";
 521        print C "From $sender # This line is ignored.\n";
 522        printf C "Subject: %s\n\n", $initial_subject;
 523        printf C <<EOT;
 524GIT: Please enter your email below.
 525GIT: Lines beginning in "GIT: " will be removed.
 526GIT: Consider including an overall diffstat or table of contents
 527GIT: for the patch you are writing.
 528
 529EOT
 530        close(C);
 531
 532        my $editor = $ENV{GIT_EDITOR} || Git::config(@repo, "core.editor") || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
 533        system('sh', '-c', $editor.' "$@"', $editor, $compose_filename);
 534
 535        open(C2,">",$compose_filename . ".final")
 536                or die "Failed to open $compose_filename.final : " . $!;
 537
 538        open(C,"<",$compose_filename)
 539                or die "Failed to open $compose_filename : " . $!;
 540
 541        my $need_8bit_cte = file_has_nonascii($compose_filename);
 542        my $in_body = 0;
 543        while(<C>) {
 544                next if m/^GIT: /;
 545                if (!$in_body && /^\n$/) {
 546                        $in_body = 1;
 547                        if ($need_8bit_cte) {
 548                                print C2 "MIME-Version: 1.0\n",
 549                                         "Content-Type: text/plain; ",
 550                                           "charset=utf-8\n",
 551                                         "Content-Transfer-Encoding: 8bit\n";
 552                        }
 553                }
 554                if (!$in_body && /^MIME-Version:/i) {
 555                        $need_8bit_cte = 0;
 556                }
 557                if (!$in_body && /^Subject: ?(.*)/i) {
 558                        my $subject = $1;
 559                        $_ = "Subject: " .
 560                                ($subject =~ /[^[:ascii:]]/ ?
 561                                 quote_rfc2047($subject) :
 562                                 $subject) .
 563                                "\n";
 564                }
 565                print C2 $_;
 566        }
 567        close(C);
 568        close(C2);
 569
 570        while (1) {
 571                $_ = $term->readline("Send this email? (y|n) ");
 572                last if defined $_;
 573                print "\n";
 574        }
 575
 576        if (uc substr($_,0,1) ne 'Y') {
 577                cleanup_compose_files();
 578                exit(0);
 579        }
 580
 581        @files = ($compose_filename . ".final", @files);
 582}
 583
 584# Variables we set as part of the loop over files
 585our ($message_id, %mail, $subject, $reply_to, $references, $message);
 586
 587sub extract_valid_address {
 588        my $address = shift;
 589        my $local_part_regexp = '[^<>"\s@]+';
 590        my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
 591
 592        # check for a local address:
 593        return $address if ($address =~ /^($local_part_regexp)$/);
 594
 595        $address =~ s/^\s*<(.*)>\s*$/$1/;
 596        if ($have_email_valid) {
 597                return scalar Email::Valid->address($address);
 598        } else {
 599                # less robust/correct than the monster regexp in Email::Valid,
 600                # but still does a 99% job, and one less dependency
 601                $address =~ /($local_part_regexp\@$domain_regexp)/;
 602                return $1;
 603        }
 604}
 605
 606# Usually don't need to change anything below here.
 607
 608# we make a "fake" message id by taking the current number
 609# of seconds since the beginning of Unix time and tacking on
 610# a random number to the end, in case we are called quicker than
 611# 1 second since the last time we were called.
 612
 613# We'll setup a template for the message id, using the "from" address:
 614
 615my ($message_id_stamp, $message_id_serial);
 616sub make_message_id
 617{
 618        my $uniq;
 619        if (!defined $message_id_stamp) {
 620                $message_id_stamp = sprintf("%s-%s", time, $$);
 621                $message_id_serial = 0;
 622        }
 623        $message_id_serial++;
 624        $uniq = "$message_id_stamp-$message_id_serial";
 625
 626        my $du_part;
 627        for ($sender, $repocommitter, $repoauthor) {
 628                $du_part = extract_valid_address(sanitize_address($_));
 629                last if (defined $du_part and $du_part ne '');
 630        }
 631        if (not defined $du_part or $du_part eq '') {
 632                use Sys::Hostname qw();
 633                $du_part = 'user@' . Sys::Hostname::hostname();
 634        }
 635        my $message_id_template = "<%s-git-send-email-%s>";
 636        $message_id = sprintf($message_id_template, $uniq, $du_part);
 637        #print "new message id = $message_id\n"; # Was useful for debugging
 638}
 639
 640
 641
 642$time = time - scalar $#files;
 643
 644sub unquote_rfc2047 {
 645        local ($_) = @_;
 646        my $encoding;
 647        if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
 648                $encoding = $1;
 649                s/_/ /g;
 650                s/=([0-9A-F]{2})/chr(hex($1))/eg;
 651        }
 652        return wantarray ? ($_, $encoding) : $_;
 653}
 654
 655sub quote_rfc2047 {
 656        local $_ = shift;
 657        my $encoding = shift || 'utf-8';
 658        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
 659        s/(.*)/=\?$encoding\?q\?$1\?=/;
 660        return $_;
 661}
 662
 663# use the simplest quoting being able to handle the recipient
 664sub sanitize_address
 665{
 666        my ($recipient) = @_;
 667        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
 668
 669        if (not $recipient_name) {
 670                return "$recipient";
 671        }
 672
 673        # if recipient_name is already quoted, do nothing
 674        if ($recipient_name =~ /^(".*"|=\?utf-8\?q\?.*\?=)$/) {
 675                return $recipient;
 676        }
 677
 678        # rfc2047 is needed if a non-ascii char is included
 679        if ($recipient_name =~ /[^[:ascii:]]/) {
 680                $recipient_name = quote_rfc2047($recipient_name);
 681        }
 682
 683        # double quotes are needed if specials or CTLs are included
 684        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 685                $recipient_name =~ s/(["\\\r])/\\$1/g;
 686                $recipient_name = "\"$recipient_name\"";
 687        }
 688
 689        return "$recipient_name $recipient_addr";
 690
 691}
 692
 693sub send_message
 694{
 695        my @recipients = unique_email_list(@to);
 696        @cc = (grep { my $cc = extract_valid_address($_);
 697                      not grep { $cc eq $_ } @recipients
 698                    }
 699               map { sanitize_address($_) }
 700               @cc);
 701        my $to = join (",\n\t", @recipients);
 702        @recipients = unique_email_list(@recipients,@cc,@bcclist);
 703        @recipients = (map { extract_valid_address($_) } @recipients);
 704        my $date = format_2822_time($time++);
 705        my $gitversion = '@@GIT_VERSION@@';
 706        if ($gitversion =~ m/..GIT_VERSION../) {
 707            $gitversion = Git::version();
 708        }
 709
 710        my $cc = join(", ", unique_email_list(@cc));
 711        my $ccline = "";
 712        if ($cc ne '') {
 713                $ccline = "\nCc: $cc";
 714        }
 715        my $sanitized_sender = sanitize_address($sender);
 716        make_message_id() unless defined($message_id);
 717
 718        my $header = "From: $sanitized_sender
 719To: $to${ccline}
 720Subject: $subject
 721Date: $date
 722Message-Id: $message_id
 723X-Mailer: git-send-email $gitversion
 724";
 725        if ($thread && $reply_to) {
 726
 727                $header .= "In-Reply-To: $reply_to\n";
 728                $header .= "References: $references\n";
 729        }
 730        if (@xh) {
 731                $header .= join("\n", @xh) . "\n";
 732        }
 733
 734        my @sendmail_parameters = ('-i', @recipients);
 735        my $raw_from = $sanitized_sender;
 736        $raw_from = $envelope_sender if (defined $envelope_sender);
 737        $raw_from = extract_valid_address($raw_from);
 738        unshift (@sendmail_parameters,
 739                        '-f', $raw_from) if(defined $envelope_sender);
 740
 741        if ($dry_run) {
 742                # We don't want to send the email.
 743        } elsif ($smtp_server =~ m#^/#) {
 744                my $pid = open my $sm, '|-';
 745                defined $pid or die $!;
 746                if (!$pid) {
 747                        exec($smtp_server, @sendmail_parameters) or die $!;
 748                }
 749                print $sm "$header\n$message";
 750                close $sm or die $?;
 751        } else {
 752
 753                if (!defined $smtp_server) {
 754                        die "The required SMTP server is not properly defined."
 755                }
 756
 757                if ($smtp_encryption eq 'ssl') {
 758                        $smtp_server_port ||= 465; # ssmtp
 759                        require Net::SMTP::SSL;
 760                        $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port);
 761                }
 762                else {
 763                        require Net::SMTP;
 764                        $smtp ||= Net::SMTP->new((defined $smtp_server_port)
 765                                                 ? "$smtp_server:$smtp_server_port"
 766                                                 : $smtp_server);
 767                        if ($smtp_encryption eq 'tls') {
 768                                require Net::SMTP::SSL;
 769                                $smtp->command('STARTTLS');
 770                                $smtp->response();
 771                                if ($smtp->code == 220) {
 772                                        $smtp = Net::SMTP::SSL->start_SSL($smtp)
 773                                                or die "STARTTLS failed! ".$smtp->message;
 774                                        $smtp_encryption = '';
 775                                        # Send EHLO again to receive fresh
 776                                        # supported commands
 777                                        $smtp->hello();
 778                                } else {
 779                                        die "Server does not support STARTTLS! ".$smtp->message;
 780                                }
 781                        }
 782                }
 783
 784                if (!$smtp) {
 785                        die "Unable to initialize SMTP properly.  Is there something wrong with your config?";
 786                }
 787
 788                if (defined $smtp_authuser) {
 789
 790                        if (!defined $smtp_authpass) {
 791
 792                                system "stty -echo";
 793
 794                                do {
 795                                        print "Password: ";
 796                                        $_ = <STDIN>;
 797                                        print "\n";
 798                                } while (!defined $_);
 799
 800                                chomp($smtp_authpass = $_);
 801
 802                                system "stty echo";
 803                        }
 804
 805                        $auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) or die $smtp->message;
 806                }
 807
 808                $smtp->mail( $raw_from ) or die $smtp->message;
 809                $smtp->to( @recipients ) or die $smtp->message;
 810                $smtp->data or die $smtp->message;
 811                $smtp->datasend("$header\n$message") or die $smtp->message;
 812                $smtp->dataend() or die $smtp->message;
 813                $smtp->ok or die "Failed to send $subject\n".$smtp->message;
 814        }
 815        if ($quiet) {
 816                printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject);
 817        } else {
 818                print (($dry_run ? "Dry-" : "")."OK. Log says:\n");
 819                if ($smtp_server !~ m#^/#) {
 820                        print "Server: $smtp_server\n";
 821                        print "MAIL FROM:<$raw_from>\n";
 822                        print "RCPT TO:".join(',',(map { "<$_>" } @recipients))."\n";
 823                } else {
 824                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
 825                }
 826                print $header, "\n";
 827                if ($smtp) {
 828                        print "Result: ", $smtp->code, ' ',
 829                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
 830                } else {
 831                        print "Result: OK\n";
 832                }
 833        }
 834}
 835
 836$reply_to = $initial_reply_to;
 837$references = $initial_reply_to || '';
 838$subject = $initial_subject;
 839
 840foreach my $t (@files) {
 841        open(F,"<",$t) or die "can't open file $t";
 842
 843        my $author = undef;
 844        my $author_encoding;
 845        my $has_content_type;
 846        my $body_encoding;
 847        @cc = @initial_cc;
 848        @xh = ();
 849        my $input_format = undef;
 850        my $header_done = 0;
 851        $message = "";
 852        while(<F>) {
 853                if (!$header_done) {
 854                        if (/^From /) {
 855                                $input_format = 'mbox';
 856                                next;
 857                        }
 858                        chomp;
 859                        if (!defined $input_format && /^[-A-Za-z]+:\s/) {
 860                                $input_format = 'mbox';
 861                        }
 862
 863                        if (defined $input_format && $input_format eq 'mbox') {
 864                                if (/^Subject:\s+(.*)$/) {
 865                                        $subject = $1;
 866
 867                                } elsif (/^(Cc|From):\s+(.*)$/) {
 868                                        if (unquote_rfc2047($2) eq $sender) {
 869                                                next if ($suppress_cc{'self'});
 870                                        }
 871                                        elsif ($1 eq 'From') {
 872                                                ($author, $author_encoding)
 873                                                  = unquote_rfc2047($2);
 874                                                next if ($suppress_cc{'author'});
 875                                        } else {
 876                                                next if ($suppress_cc{'cc'});
 877                                        }
 878                                        printf("(mbox) Adding cc: %s from line '%s'\n",
 879                                                $2, $_) unless $quiet;
 880                                        push @cc, $2;
 881                                }
 882                                elsif (/^Content-type:/i) {
 883                                        $has_content_type = 1;
 884                                        if (/charset="?([^ "]+)/) {
 885                                                $body_encoding = $1;
 886                                        }
 887                                        push @xh, $_;
 888                                }
 889                                elsif (/^Message-Id: (.*)/i) {
 890                                        $message_id = $1;
 891                                }
 892                                elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
 893                                        push @xh, $_;
 894                                }
 895
 896                        } else {
 897                                # In the traditional
 898                                # "send lots of email" format,
 899                                # line 1 = cc
 900                                # line 2 = subject
 901                                # So let's support that, too.
 902                                $input_format = 'lots';
 903                                if (@cc == 0 && !$suppress_cc{'cc'}) {
 904                                        printf("(non-mbox) Adding cc: %s from line '%s'\n",
 905                                                $_, $_) unless $quiet;
 906
 907                                        push @cc, $_;
 908
 909                                } elsif (!defined $subject) {
 910                                        $subject = $_;
 911                                }
 912                        }
 913
 914                        # A whitespace line will terminate the headers
 915                        if (m/^\s*$/) {
 916                                $header_done = 1;
 917                        }
 918                } else {
 919                        $message .=  $_;
 920                        if (/^(Signed-off-by|Cc): (.*)$/i) {
 921                                next if ($suppress_cc{'sob'});
 922                                chomp;
 923                                my $c = $2;
 924                                chomp $c;
 925                                next if ($c eq $sender and $suppress_cc{'self'});
 926                                push @cc, $c;
 927                                printf("(sob) Adding cc: %s from line '%s'\n",
 928                                        $c, $_) unless $quiet;
 929                        }
 930                }
 931        }
 932        close F;
 933
 934        if (defined $cc_cmd && !$suppress_cc{'cccmd'}) {
 935                open(F, "$cc_cmd $t |")
 936                        or die "(cc-cmd) Could not execute '$cc_cmd'";
 937                while(<F>) {
 938                        my $c = $_;
 939                        $c =~ s/^\s*//g;
 940                        $c =~ s/\n$//g;
 941                        next if ($c eq $sender and $suppress_from);
 942                        push @cc, $c;
 943                        printf("(cc-cmd) Adding cc: %s from: '%s'\n",
 944                                $c, $cc_cmd) unless $quiet;
 945                }
 946                close F
 947                        or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
 948        }
 949
 950        if (defined $author) {
 951                $message = "From: $author\n\n$message";
 952                if (defined $author_encoding) {
 953                        if ($has_content_type) {
 954                                if ($body_encoding eq $author_encoding) {
 955                                        # ok, we already have the right encoding
 956                                }
 957                                else {
 958                                        # uh oh, we should re-encode
 959                                }
 960                        }
 961                        else {
 962                                push @xh,
 963                                  'MIME-Version: 1.0',
 964                                  "Content-Type: text/plain; charset=$author_encoding",
 965                                  'Content-Transfer-Encoding: 8bit';
 966                        }
 967                }
 968        }
 969
 970        send_message();
 971
 972        # set up for the next message
 973        if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
 974                $reply_to = $message_id;
 975                if (length $references > 0) {
 976                        $references .= "\n $message_id";
 977                } else {
 978                        $references = "$message_id";
 979                }
 980        }
 981        $message_id = undef;
 982}
 983
 984if ($compose) {
 985        cleanup_compose_files();
 986}
 987
 988sub cleanup_compose_files() {
 989        unlink($compose_filename, $compose_filename . ".final");
 990
 991}
 992
 993$smtp->quit if $smtp;
 994
 995sub unique_email_list(@) {
 996        my %seen;
 997        my @emails;
 998
 999        foreach my $entry (@_) {
1000                if (my $clean = extract_valid_address($entry)) {
1001                        $seen{$clean} ||= 0;
1002                        next if $seen{$clean}++;
1003                        push @emails, $entry;
1004                } else {
1005                        print STDERR "W: unable to extract a valid address",
1006                                        " from: $entry\n";
1007                }
1008        }
1009        return @emails;
1010}
1011
1012sub validate_patch {
1013        my $fn = shift;
1014        open(my $fh, '<', $fn)
1015                or die "unable to open $fn: $!\n";
1016        while (my $line = <$fh>) {
1017                if (length($line) > 998) {
1018                        return "$.: patch contains a line longer than 998 characters";
1019                }
1020        }
1021        return undef;
1022}
1023
1024sub file_has_nonascii {
1025        my $fn = shift;
1026        open(my $fh, '<', $fn)
1027                or die "unable to open $fn: $!\n";
1028        while (my $line = <$fh>) {
1029                return 1 if $line =~ /[^[:ascii:]]/;
1030        }
1031        return 0;
1032}