git-send-email.perlon commit Merge branch 'jk/drop-sha1-entry-pos' into maint (7c9375d)
   1#!/usr/bin/perl
   2#
   3# Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
   4# Copyright 2005 Ryan Anderson <ryan@michonline.com>
   5#
   6# GPL v2 (See COPYING)
   7#
   8# Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
   9#
  10# Sends a collection of emails to the given email addresses, disturbingly fast.
  11#
  12# Supports two formats:
  13# 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches)
  14# 2. The original format support by Greg's script:
  15#    first line of the message is who to CC,
  16#    and second line is the subject of the message.
  17#
  18
  19use 5.008;
  20use strict;
  21use warnings;
  22use POSIX qw/strftime/;
  23use Term::ReadLine;
  24use Getopt::Long;
  25use Text::ParseWords;
  26use Term::ANSIColor;
  27use File::Temp qw/ tempdir tempfile /;
  28use File::Spec::Functions qw(catdir catfile);
  29use Error qw(:try);
  30use Cwd qw(abs_path cwd);
  31use Git;
  32use Git::I18N;
  33
  34Getopt::Long::Configure qw/ pass_through /;
  35
  36package FakeTerm;
  37sub new {
  38        my ($class, $reason) = @_;
  39        return bless \$reason, shift;
  40}
  41sub readline {
  42        my $self = shift;
  43        die "Cannot use readline on FakeTerm: $$self";
  44}
  45package main;
  46
  47
  48sub usage {
  49        print <<EOT;
  50git send-email [options] <file | directory | rev-list options >
  51git send-email --dump-aliases
  52
  53  Composing:
  54    --from                  <str>  * Email From:
  55    --[no-]to               <str>  * Email To:
  56    --[no-]cc               <str>  * Email Cc:
  57    --[no-]bcc              <str>  * Email Bcc:
  58    --subject               <str>  * Email "Subject:"
  59    --in-reply-to           <str>  * Email "In-Reply-To:"
  60    --[no-]xmailer                 * Add "X-Mailer:" header (default).
  61    --[no-]annotate                * Review each patch that will be sent in an editor.
  62    --compose                      * Open an editor for introduction.
  63    --compose-encoding      <str>  * Encoding to assume for introduction.
  64    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
  65    --transfer-encoding     <str>  * Transfer encoding to use (quoted-printable, 8bit, base64)
  66
  67  Sending:
  68    --envelope-sender       <str>  * Email envelope sender.
  69    --smtp-server       <str:int>  * Outgoing SMTP server to use. The port
  70                                     is optional. Default 'localhost'.
  71    --smtp-server-option    <str>  * Outgoing SMTP server option to use.
  72    --smtp-server-port      <int>  * Outgoing SMTP server port.
  73    --smtp-user             <str>  * Username for SMTP-AUTH.
  74    --smtp-pass             <str>  * Password for SMTP-AUTH; not necessary.
  75    --smtp-encryption       <str>  * tls or ssl; anything else disables.
  76    --smtp-ssl                     * Deprecated. Use '--smtp-encryption ssl'.
  77    --smtp-ssl-cert-path    <str>  * Path to ca-certificates (either directory or file).
  78                                     Pass an empty string to disable certificate
  79                                     verification.
  80    --smtp-domain           <str>  * The domain name sent to HELO/EHLO handshake
  81    --smtp-auth             <str>  * Space-separated list of allowed AUTH mechanisms.
  82                                     This setting forces to use one of the listed mechanisms.
  83    --smtp-debug            <0|1>  * Disable, enable Net::SMTP debug.
  84
  85    --batch-size            <int>  * send max <int> message per connection.
  86    --relogin-delay         <int>  * delay <int> seconds between two successive login.
  87                                     This option can only be used with --batch-size
  88
  89  Automating:
  90    --identity              <str>  * Use the sendemail.<id> options.
  91    --to-cmd                <str>  * Email To: via `<str> \$patch_path`
  92    --cc-cmd                <str>  * Email Cc: via `<str> \$patch_path`
  93    --suppress-cc           <str>  * author, self, sob, cc, cccmd, body, bodycc, all.
  94    --[no-]cc-cover                * Email Cc: addresses in the cover letter.
  95    --[no-]to-cover                * Email To: addresses in the cover letter.
  96    --[no-]signed-off-by-cc        * Send to Signed-off-by: addresses. Default on.
  97    --[no-]suppress-from           * Send to self. Default off.
  98    --[no-]chain-reply-to          * Chain In-Reply-To: fields. Default off.
  99    --[no-]thread                  * Use In-Reply-To: field. Default on.
 100
 101  Administering:
 102    --confirm               <str>  * Confirm recipients before sending;
 103                                     auto, cc, compose, always, or never.
 104    --quiet                        * Output one line of info per email.
 105    --dry-run                      * Don't actually send the emails.
 106    --[no-]validate                * Perform patch sanity checks. Default on.
 107    --[no-]format-patch            * understand any non optional arguments as
 108                                     `git format-patch` ones.
 109    --force                        * Send even if safety checks would prevent it.
 110
 111  Information:
 112    --dump-aliases                 * Dump configured aliases and exit.
 113
 114EOT
 115        exit(1);
 116}
 117
 118# most mail servers generate the Date: header, but not all...
 119sub format_2822_time {
 120        my ($time) = @_;
 121        my @localtm = localtime($time);
 122        my @gmttm = gmtime($time);
 123        my $localmin = $localtm[1] + $localtm[2] * 60;
 124        my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
 125        if ($localtm[0] != $gmttm[0]) {
 126                die __("local zone differs from GMT by a non-minute interval\n");
 127        }
 128        if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
 129                $localmin += 1440;
 130        } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
 131                $localmin -= 1440;
 132        } elsif ($gmttm[6] != $localtm[6]) {
 133                die __("local time offset greater than or equal to 24 hours\n");
 134        }
 135        my $offset = $localmin - $gmtmin;
 136        my $offhour = $offset / 60;
 137        my $offmin = abs($offset % 60);
 138        if (abs($offhour) >= 24) {
 139                die __("local time offset greater than or equal to 24 hours\n");
 140        }
 141
 142        return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
 143                       qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
 144                       $localtm[3],
 145                       qw(Jan Feb Mar Apr May Jun
 146                          Jul Aug Sep Oct Nov Dec)[$localtm[4]],
 147                       $localtm[5]+1900,
 148                       $localtm[2],
 149                       $localtm[1],
 150                       $localtm[0],
 151                       ($offset >= 0) ? '+' : '-',
 152                       abs($offhour),
 153                       $offmin,
 154                       );
 155}
 156
 157my $have_email_valid = eval { require Email::Valid; 1 };
 158my $smtp;
 159my $auth;
 160my $num_sent = 0;
 161
 162# Regexes for RFC 2047 productions.
 163my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/;
 164my $re_encoded_text = qr/[^? \000-\037\177-\377]+/;
 165my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 166
 167# Variables we fill in automatically, or via prompting:
 168my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
 169        $initial_reply_to,$initial_subject,@files,
 170        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 171
 172my $envelope_sender;
 173
 174# Example reply to:
 175#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 176
 177my $repo = eval { Git->repository() };
 178my @repo = $repo ? ($repo) : ();
 179my $term = eval {
 180        $ENV{"GIT_SEND_EMAIL_NOTTY"}
 181                ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT
 182                : new Term::ReadLine 'git-send-email';
 183};
 184if ($@) {
 185        $term = new FakeTerm "$@: going non-interactive";
 186}
 187
 188# Behavior modification variables
 189my ($quiet, $dry_run) = (0, 0);
 190my $format_patch;
 191my $compose_filename;
 192my $force = 0;
 193my $dump_aliases = 0;
 194
 195# Handle interactive edition of files.
 196my $multiedit;
 197my $editor;
 198
 199sub do_edit {
 200        if (!defined($editor)) {
 201                $editor = Git::command_oneline('var', 'GIT_EDITOR');
 202        }
 203        if (defined($multiedit) && !$multiedit) {
 204                map {
 205                        system('sh', '-c', $editor.' "$@"', $editor, $_);
 206                        if (($? & 127) || ($? >> 8)) {
 207                                die(__("the editor exited uncleanly, aborting everything"));
 208                        }
 209                } @_;
 210        } else {
 211                system('sh', '-c', $editor.' "$@"', $editor, @_);
 212                if (($? & 127) || ($? >> 8)) {
 213                        die(__("the editor exited uncleanly, aborting everything"));
 214                }
 215        }
 216}
 217
 218# Variables with corresponding config settings
 219my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc);
 220my ($cover_cc, $cover_to);
 221my ($to_cmd, $cc_cmd);
 222my ($smtp_server, $smtp_server_port, @smtp_server_options);
 223my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path);
 224my ($batch_size, $relogin_delay);
 225my ($identity, $aliasfiletype, @alias_files, $smtp_domain, $smtp_auth);
 226my ($validate, $confirm);
 227my (@suppress_cc);
 228my ($auto_8bit_encoding);
 229my ($compose_encoding);
 230my ($target_xfer_encoding);
 231
 232my ($debug_net_smtp) = 0;               # Net::SMTP, see send_message()
 233
 234my %config_bool_settings = (
 235    "thread" => [\$thread, 1],
 236    "chainreplyto" => [\$chain_reply_to, 0],
 237    "suppressfrom" => [\$suppress_from, undef],
 238    "signedoffbycc" => [\$signed_off_by_cc, undef],
 239    "cccover" => [\$cover_cc, undef],
 240    "tocover" => [\$cover_to, undef],
 241    "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
 242    "validate" => [\$validate, 1],
 243    "multiedit" => [\$multiedit, undef],
 244    "annotate" => [\$annotate, undef],
 245    "xmailer" => [\$use_xmailer, 1]
 246);
 247
 248my %config_settings = (
 249    "smtpserver" => \$smtp_server,
 250    "smtpserverport" => \$smtp_server_port,
 251    "smtpserveroption" => \@smtp_server_options,
 252    "smtpuser" => \$smtp_authuser,
 253    "smtppass" => \$smtp_authpass,
 254    "smtpdomain" => \$smtp_domain,
 255    "smtpauth" => \$smtp_auth,
 256    "smtpbatchsize" => \$batch_size,
 257    "smtprelogindelay" => \$relogin_delay,
 258    "to" => \@initial_to,
 259    "tocmd" => \$to_cmd,
 260    "cc" => \@initial_cc,
 261    "cccmd" => \$cc_cmd,
 262    "aliasfiletype" => \$aliasfiletype,
 263    "bcc" => \@bcclist,
 264    "suppresscc" => \@suppress_cc,
 265    "envelopesender" => \$envelope_sender,
 266    "confirm"   => \$confirm,
 267    "from" => \$sender,
 268    "assume8bitencoding" => \$auto_8bit_encoding,
 269    "composeencoding" => \$compose_encoding,
 270    "transferencoding" => \$target_xfer_encoding,
 271);
 272
 273my %config_path_settings = (
 274    "aliasesfile" => \@alias_files,
 275    "smtpsslcertpath" => \$smtp_ssl_cert_path,
 276);
 277
 278# Handle Uncouth Termination
 279sub signal_handler {
 280
 281        # Make text normal
 282        print color("reset"), "\n";
 283
 284        # SMTP password masked
 285        system "stty echo";
 286
 287        # tmp files from --compose
 288        if (defined $compose_filename) {
 289                if (-e $compose_filename) {
 290                        printf __("'%s' contains an intermediate version ".
 291                                  "of the email you were composing.\n"),
 292                                  $compose_filename;
 293                }
 294                if (-e ($compose_filename . ".final")) {
 295                        printf __("'%s.final' contains the composed email.\n"),
 296                                  $compose_filename;
 297                }
 298        }
 299
 300        exit;
 301};
 302
 303$SIG{TERM} = \&signal_handler;
 304$SIG{INT}  = \&signal_handler;
 305
 306# Begin by accumulating all the variables (defined above), that we will end up
 307# needing, first, from the command line:
 308
 309my $help;
 310my $rc = GetOptions("h" => \$help,
 311                    "dump-aliases" => \$dump_aliases);
 312usage() unless $rc;
 313die __("--dump-aliases incompatible with other options\n")
 314    if !$help and $dump_aliases and @ARGV;
 315$rc = GetOptions(
 316                    "sender|from=s" => \$sender,
 317                    "in-reply-to=s" => \$initial_reply_to,
 318                    "subject=s" => \$initial_subject,
 319                    "to=s" => \@initial_to,
 320                    "to-cmd=s" => \$to_cmd,
 321                    "no-to" => \$no_to,
 322                    "cc=s" => \@initial_cc,
 323                    "no-cc" => \$no_cc,
 324                    "bcc=s" => \@bcclist,
 325                    "no-bcc" => \$no_bcc,
 326                    "chain-reply-to!" => \$chain_reply_to,
 327                    "no-chain-reply-to" => sub {$chain_reply_to = 0},
 328                    "smtp-server=s" => \$smtp_server,
 329                    "smtp-server-option=s" => \@smtp_server_options,
 330                    "smtp-server-port=s" => \$smtp_server_port,
 331                    "smtp-user=s" => \$smtp_authuser,
 332                    "smtp-pass:s" => \$smtp_authpass,
 333                    "smtp-ssl" => sub { $smtp_encryption = 'ssl' },
 334                    "smtp-encryption=s" => \$smtp_encryption,
 335                    "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path,
 336                    "smtp-debug:i" => \$debug_net_smtp,
 337                    "smtp-domain:s" => \$smtp_domain,
 338                    "smtp-auth=s" => \$smtp_auth,
 339                    "identity=s" => \$identity,
 340                    "annotate!" => \$annotate,
 341                    "no-annotate" => sub {$annotate = 0},
 342                    "compose" => \$compose,
 343                    "quiet" => \$quiet,
 344                    "cc-cmd=s" => \$cc_cmd,
 345                    "suppress-from!" => \$suppress_from,
 346                    "no-suppress-from" => sub {$suppress_from = 0},
 347                    "suppress-cc=s" => \@suppress_cc,
 348                    "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
 349                    "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0},
 350                    "cc-cover|cc-cover!" => \$cover_cc,
 351                    "no-cc-cover" => sub {$cover_cc = 0},
 352                    "to-cover|to-cover!" => \$cover_to,
 353                    "no-to-cover" => sub {$cover_to = 0},
 354                    "confirm=s" => \$confirm,
 355                    "dry-run" => \$dry_run,
 356                    "envelope-sender=s" => \$envelope_sender,
 357                    "thread!" => \$thread,
 358                    "no-thread" => sub {$thread = 0},
 359                    "validate!" => \$validate,
 360                    "no-validate" => sub {$validate = 0},
 361                    "transfer-encoding=s" => \$target_xfer_encoding,
 362                    "format-patch!" => \$format_patch,
 363                    "no-format-patch" => sub {$format_patch = 0},
 364                    "8bit-encoding=s" => \$auto_8bit_encoding,
 365                    "compose-encoding=s" => \$compose_encoding,
 366                    "force" => \$force,
 367                    "xmailer!" => \$use_xmailer,
 368                    "no-xmailer" => sub {$use_xmailer = 0},
 369                    "batch-size=i" => \$batch_size,
 370                    "relogin-delay=i" => \$relogin_delay,
 371         );
 372
 373usage() if $help;
 374unless ($rc) {
 375    usage();
 376}
 377
 378die __("Cannot run git format-patch from outside a repository\n")
 379        if $format_patch and not $repo;
 380
 381# Now, let's fill any that aren't set in with defaults:
 382
 383sub read_config {
 384        my ($prefix) = @_;
 385
 386        foreach my $setting (keys %config_bool_settings) {
 387                my $target = $config_bool_settings{$setting}->[0];
 388                $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target);
 389        }
 390
 391        foreach my $setting (keys %config_path_settings) {
 392                my $target = $config_path_settings{$setting};
 393                if (ref($target) eq "ARRAY") {
 394                        unless (@$target) {
 395                                my @values = Git::config_path(@repo, "$prefix.$setting");
 396                                @$target = @values if (@values && defined $values[0]);
 397                        }
 398                }
 399                else {
 400                        $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target);
 401                }
 402        }
 403
 404        foreach my $setting (keys %config_settings) {
 405                my $target = $config_settings{$setting};
 406                next if $setting eq "to" and defined $no_to;
 407                next if $setting eq "cc" and defined $no_cc;
 408                next if $setting eq "bcc" and defined $no_bcc;
 409                if (ref($target) eq "ARRAY") {
 410                        unless (@$target) {
 411                                my @values = Git::config(@repo, "$prefix.$setting");
 412                                @$target = @values if (@values && defined $values[0]);
 413                        }
 414                }
 415                else {
 416                        $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target);
 417                }
 418        }
 419
 420        if (!defined $smtp_encryption) {
 421                my $enc = Git::config(@repo, "$prefix.smtpencryption");
 422                if (defined $enc) {
 423                        $smtp_encryption = $enc;
 424                } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) {
 425                        $smtp_encryption = 'ssl';
 426                }
 427        }
 428}
 429
 430# read configuration from [sendemail "$identity"], fall back on [sendemail]
 431$identity = Git::config(@repo, "sendemail.identity") unless (defined $identity);
 432read_config("sendemail.$identity") if (defined $identity);
 433read_config("sendemail");
 434
 435# fall back on builtin bool defaults
 436foreach my $setting (values %config_bool_settings) {
 437        ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]}));
 438}
 439
 440# 'default' encryption is none -- this only prevents a warning
 441$smtp_encryption = '' unless (defined $smtp_encryption);
 442
 443# Set CC suppressions
 444my(%suppress_cc);
 445if (@suppress_cc) {
 446        foreach my $entry (@suppress_cc) {
 447                die sprintf(__("Unknown --suppress-cc field: '%s'\n"), $entry)
 448                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/;
 449                $suppress_cc{$entry} = 1;
 450        }
 451}
 452
 453if ($suppress_cc{'all'}) {
 454        foreach my $entry (qw (cccmd cc author self sob body bodycc)) {
 455                $suppress_cc{$entry} = 1;
 456        }
 457        delete $suppress_cc{'all'};
 458}
 459
 460# If explicit old-style ones are specified, they trump --suppress-cc.
 461$suppress_cc{'self'} = $suppress_from if defined $suppress_from;
 462$suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc;
 463
 464if ($suppress_cc{'body'}) {
 465        foreach my $entry (qw (sob bodycc)) {
 466                $suppress_cc{$entry} = 1;
 467        }
 468        delete $suppress_cc{'body'};
 469}
 470
 471# Set confirm's default value
 472my $confirm_unconfigured = !defined $confirm;
 473if ($confirm_unconfigured) {
 474        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 475};
 476die sprintf(__("Unknown --confirm setting: '%s'\n"), $confirm)
 477        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 478
 479# Debugging, print out the suppressions.
 480if (0) {
 481        print "suppressions:\n";
 482        foreach my $entry (keys %suppress_cc) {
 483                printf "  %-5s -> $suppress_cc{$entry}\n", $entry;
 484        }
 485}
 486
 487my ($repoauthor, $repocommitter);
 488($repoauthor) = Git::ident_person(@repo, 'author');
 489($repocommitter) = Git::ident_person(@repo, 'committer');
 490
 491sub parse_address_line {
 492        return Git::parse_mailboxes($_[0]);
 493}
 494
 495sub split_addrs {
 496        return quotewords('\s*,\s*', 1, @_);
 497}
 498
 499my %aliases;
 500
 501sub parse_sendmail_alias {
 502        local $_ = shift;
 503        if (/"/) {
 504                printf STDERR __("warning: sendmail alias with quotes is not supported: %s\n"), $_;
 505        } elsif (/:include:/) {
 506                printf STDERR __("warning: `:include:` not supported: %s\n"), $_;
 507        } elsif (/[\/|]/) {
 508                printf STDERR __("warning: `/file` or `|pipe` redirection not supported: %s\n"), $_;
 509        } elsif (/^(\S+?)\s*:\s*(.+)$/) {
 510                my ($alias, $addr) = ($1, $2);
 511                $aliases{$alias} = [ split_addrs($addr) ];
 512        } else {
 513                printf STDERR __("warning: sendmail line is not recognized: %s\n"), $_;
 514        }
 515}
 516
 517sub parse_sendmail_aliases {
 518        my $fh = shift;
 519        my $s = '';
 520        while (<$fh>) {
 521                chomp;
 522                next if /^\s*$/ || /^\s*#/;
 523                $s .= $_, next if $s =~ s/\\$// || s/^\s+//;
 524                parse_sendmail_alias($s) if $s;
 525                $s = $_;
 526        }
 527        $s =~ s/\\$//; # silently tolerate stray '\' on last line
 528        parse_sendmail_alias($s) if $s;
 529}
 530
 531my %parse_alias = (
 532        # multiline formats can be supported in the future
 533        mutt => sub { my $fh = shift; while (<$fh>) {
 534                if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) {
 535                        my ($alias, $addr) = ($1, $2);
 536                        $addr =~ s/#.*$//; # mutt allows # comments
 537                        # commas delimit multiple addresses
 538                        my @addr = split_addrs($addr);
 539
 540                        # quotes may be escaped in the file,
 541                        # unescape them so we do not double-escape them later.
 542                        s/\\"/"/g foreach @addr;
 543                        $aliases{$alias} = \@addr
 544                }}},
 545        mailrc => sub { my $fh = shift; while (<$fh>) {
 546                if (/^alias\s+(\S+)\s+(.*?)\s*$/) {
 547                        # spaces delimit multiple addresses
 548                        $aliases{$1} = [ quotewords('\s+', 0, $2) ];
 549                }}},
 550        pine => sub { my $fh = shift; my $f='\t[^\t]*';
 551                for (my $x = ''; defined($x); $x = $_) {
 552                        chomp $x;
 553                        $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/);
 554                        $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next;
 555                        $aliases{$1} = [ split_addrs($2) ];
 556                }},
 557        elm => sub  { my $fh = shift;
 558                      while (<$fh>) {
 559                          if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) {
 560                              my ($alias, $addr) = ($1, $2);
 561                               $aliases{$alias} = [ split_addrs($addr) ];
 562                          }
 563                      } },
 564        sendmail => \&parse_sendmail_aliases,
 565        gnus => sub { my $fh = shift; while (<$fh>) {
 566                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
 567                        $aliases{$1} = [ $2 ];
 568                }}}
 569);
 570
 571if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 572        foreach my $file (@alias_files) {
 573                open my $fh, '<', $file or die "opening $file: $!\n";
 574                $parse_alias{$aliasfiletype}->($fh);
 575                close $fh;
 576        }
 577}
 578
 579if ($dump_aliases) {
 580    print "$_\n" for (sort keys %aliases);
 581    exit(0);
 582}
 583
 584# is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if
 585# $f is a revision list specification to be passed to format-patch.
 586sub is_format_patch_arg {
 587        return unless $repo;
 588        my $f = shift;
 589        try {
 590                $repo->command('rev-parse', '--verify', '--quiet', $f);
 591                if (defined($format_patch)) {
 592                        return $format_patch;
 593                }
 594                die sprintf(__ <<EOF, $f, $f);
 595File '%s' exists but it could also be the range of commits
 596to produce patches for.  Please disambiguate by...
 597
 598    * Saying "./%s" if you mean a file; or
 599    * Giving --format-patch option if you mean a range.
 600EOF
 601        } catch Git::Error::Command with {
 602                # Not a valid revision.  Treat it as a filename.
 603                return 0;
 604        }
 605}
 606
 607# Now that all the defaults are set, process the rest of the command line
 608# arguments and collect up the files that need to be processed.
 609my @rev_list_opts;
 610while (defined(my $f = shift @ARGV)) {
 611        if ($f eq "--") {
 612                push @rev_list_opts, "--", @ARGV;
 613                @ARGV = ();
 614        } elsif (-d $f and !is_format_patch_arg($f)) {
 615                opendir my $dh, $f
 616                        or die sprintf(__("Failed to opendir %s: %s"), $f, $!);
 617
 618                push @files, grep { -f $_ } map { catfile($f, $_) }
 619                                sort readdir $dh;
 620                closedir $dh;
 621        } elsif ((-f $f or -p $f) and !is_format_patch_arg($f)) {
 622                push @files, $f;
 623        } else {
 624                push @rev_list_opts, $f;
 625        }
 626}
 627
 628if (@rev_list_opts) {
 629        die __("Cannot run git format-patch from outside a repository\n")
 630                unless $repo;
 631        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 632}
 633
 634@files = handle_backup_files(@files);
 635
 636if ($validate) {
 637        foreach my $f (@files) {
 638                unless (-p $f) {
 639                        my $error = validate_patch($f);
 640                        $error and die sprintf(__("fatal: %s: %s\nwarning: no patches were sent\n"),
 641                                                  $f, $error);
 642                }
 643        }
 644}
 645
 646if (@files) {
 647        unless ($quiet) {
 648                print $_,"\n" for (@files);
 649        }
 650} else {
 651        print STDERR __("\nNo patch files specified!\n\n");
 652        usage();
 653}
 654
 655sub get_patch_subject {
 656        my $fn = shift;
 657        open (my $fh, '<', $fn);
 658        while (my $line = <$fh>) {
 659                next unless ($line =~ /^Subject: (.*)$/);
 660                close $fh;
 661                return "GIT: $1\n";
 662        }
 663        close $fh;
 664        die sprintf(__("No subject line in %s?"), $fn);
 665}
 666
 667if ($compose) {
 668        # Note that this does not need to be secure, but we will make a small
 669        # effort to have it be unique
 670        $compose_filename = ($repo ?
 671                tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
 672                tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
 673        open my $c, ">", $compose_filename
 674                or die sprintf(__("Failed to open for writing %s: %s"), $compose_filename, $!);
 675
 676
 677        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
 678        my $tpl_subject = $initial_subject || '';
 679        my $tpl_reply_to = $initial_reply_to || '';
 680
 681        print $c <<EOT1, Git::prefix_lines("GIT: ", __ <<EOT2), <<EOT3;
 682From $tpl_sender # This line is ignored.
 683EOT1
 684Lines beginning in "GIT:" will be removed.
 685Consider including an overall diffstat or table of contents
 686for the patch you are writing.
 687
 688Clear the body content if you don't wish to send a summary.
 689EOT2
 690From: $tpl_sender
 691Subject: $tpl_subject
 692In-Reply-To: $tpl_reply_to
 693
 694EOT3
 695        for my $f (@files) {
 696                print $c get_patch_subject($f);
 697        }
 698        close $c;
 699
 700        if ($annotate) {
 701                do_edit($compose_filename, @files);
 702        } else {
 703                do_edit($compose_filename);
 704        }
 705
 706        open my $c2, ">", $compose_filename . ".final"
 707                or die sprintf(__("Failed to open %s.final: %s"), $compose_filename, $!);
 708
 709        open $c, "<", $compose_filename
 710                or die sprintf(__("Failed to open %s: %s"), $compose_filename, $!);
 711
 712        my $need_8bit_cte = file_has_nonascii($compose_filename);
 713        my $in_body = 0;
 714        my $summary_empty = 1;
 715        if (!defined $compose_encoding) {
 716                $compose_encoding = "UTF-8";
 717        }
 718        while(<$c>) {
 719                next if m/^GIT:/;
 720                if ($in_body) {
 721                        $summary_empty = 0 unless (/^\n$/);
 722                } elsif (/^\n$/) {
 723                        $in_body = 1;
 724                        if ($need_8bit_cte) {
 725                                print $c2 "MIME-Version: 1.0\n",
 726                                         "Content-Type: text/plain; ",
 727                                           "charset=$compose_encoding\n",
 728                                         "Content-Transfer-Encoding: 8bit\n";
 729                        }
 730                } elsif (/^MIME-Version:/i) {
 731                        $need_8bit_cte = 0;
 732                } elsif (/^Subject:\s*(.+)\s*$/i) {
 733                        $initial_subject = $1;
 734                        my $subject = $initial_subject;
 735                        $_ = "Subject: " .
 736                                quote_subject($subject, $compose_encoding) .
 737                                "\n";
 738                } elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
 739                        $initial_reply_to = $1;
 740                        next;
 741                } elsif (/^From:\s*(.+)\s*$/i) {
 742                        $sender = $1;
 743                        next;
 744                } elsif (/^(?:To|Cc|Bcc):/i) {
 745                        print __("To/Cc/Bcc fields are not interpreted yet, they have been ignored\n");
 746                        next;
 747                }
 748                print $c2 $_;
 749        }
 750        close $c;
 751        close $c2;
 752
 753        if ($summary_empty) {
 754                print __("Summary email is empty, skipping it\n");
 755                $compose = -1;
 756        }
 757} elsif ($annotate) {
 758        do_edit(@files);
 759}
 760
 761sub ask {
 762        my ($prompt, %arg) = @_;
 763        my $valid_re = $arg{valid_re};
 764        my $default = $arg{default};
 765        my $confirm_only = $arg{confirm_only};
 766        my $resp;
 767        my $i = 0;
 768        return defined $default ? $default : undef
 769                unless defined $term->IN and defined fileno($term->IN) and
 770                       defined $term->OUT and defined fileno($term->OUT);
 771        while ($i++ < 10) {
 772                $resp = $term->readline($prompt);
 773                if (!defined $resp) { # EOF
 774                        print "\n";
 775                        return defined $default ? $default : undef;
 776                }
 777                if ($resp eq '' and defined $default) {
 778                        return $default;
 779                }
 780                if (!defined $valid_re or $resp =~ /$valid_re/) {
 781                        return $resp;
 782                }
 783                if ($confirm_only) {
 784                        my $yesno = $term->readline(
 785                                # TRANSLATORS: please keep [y/N] as is.
 786                                sprintf(__("Are you sure you want to use <%s> [y/N]? "), $resp));
 787                        if (defined $yesno && $yesno =~ /y/i) {
 788                                return $resp;
 789                        }
 790                }
 791        }
 792        return;
 793}
 794
 795my %broken_encoding;
 796
 797sub file_declares_8bit_cte {
 798        my $fn = shift;
 799        open (my $fh, '<', $fn);
 800        while (my $line = <$fh>) {
 801                last if ($line =~ /^$/);
 802                return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
 803        }
 804        close $fh;
 805        return 0;
 806}
 807
 808foreach my $f (@files) {
 809        next unless (body_or_subject_has_nonascii($f)
 810                     && !file_declares_8bit_cte($f));
 811        $broken_encoding{$f} = 1;
 812}
 813
 814if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
 815        print __("The following files are 8bit, but do not declare " .
 816                 "a Content-Transfer-Encoding.\n");
 817        foreach my $f (sort keys %broken_encoding) {
 818                print "    $f\n";
 819        }
 820        $auto_8bit_encoding = ask(__("Which 8bit encoding should I declare [UTF-8]? "),
 821                                  valid_re => qr/.{4}/, confirm_only => 1,
 822                                  default => "UTF-8");
 823}
 824
 825if (!$force) {
 826        for my $f (@files) {
 827                if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) {
 828                        die sprintf(__("Refusing to send because the patch\n\t%s\n"
 829                                . "has the template subject '*** SUBJECT HERE ***'. "
 830                                . "Pass --force if you really want to send.\n"), $f);
 831                }
 832        }
 833}
 834
 835if (defined $sender) {
 836        $sender =~ s/^\s+|\s+$//g;
 837        ($sender) = expand_aliases($sender);
 838} else {
 839        $sender = $repoauthor || $repocommitter || '';
 840}
 841
 842# $sender could be an already sanitized address
 843# (e.g. sendemail.from could be manually sanitized by user).
 844# But it's a no-op to run sanitize_address on an already sanitized address.
 845$sender = sanitize_address($sender);
 846
 847my $to_whom = __("To whom should the emails be sent (if anyone)?");
 848my $prompting = 0;
 849if (!@initial_to && !defined $to_cmd) {
 850        my $to = ask("$to_whom ",
 851                     default => "",
 852                     valid_re => qr/\@.*\./, confirm_only => 1);
 853        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
 854        $prompting++;
 855}
 856
 857sub expand_aliases {
 858        return map { expand_one_alias($_) } @_;
 859}
 860
 861my %EXPANDED_ALIASES;
 862sub expand_one_alias {
 863        my $alias = shift;
 864        if ($EXPANDED_ALIASES{$alias}) {
 865                die sprintf(__("fatal: alias '%s' expands to itself\n"), $alias);
 866        }
 867        local $EXPANDED_ALIASES{$alias} = 1;
 868        return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias;
 869}
 870
 871@initial_to = process_address_list(@initial_to);
 872@initial_cc = process_address_list(@initial_cc);
 873@bcclist = process_address_list(@bcclist);
 874
 875if ($thread && !defined $initial_reply_to && $prompting) {
 876        $initial_reply_to = ask(
 877                __("Message-ID to be used as In-Reply-To for the first email (if any)? "),
 878                default => "",
 879                valid_re => qr/\@.*\./, confirm_only => 1);
 880}
 881if (defined $initial_reply_to) {
 882        $initial_reply_to =~ s/^\s*<?//;
 883        $initial_reply_to =~ s/>?\s*$//;
 884        $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 885}
 886
 887if (!defined $smtp_server) {
 888        foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
 889                if (-x $_) {
 890                        $smtp_server = $_;
 891                        last;
 892                }
 893        }
 894        $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 895}
 896
 897if ($compose && $compose > 0) {
 898        @files = ($compose_filename . ".final", @files);
 899}
 900
 901# Variables we set as part of the loop over files
 902our ($message_id, %mail, $subject, $reply_to, $references, $message,
 903        $needs_confirm, $message_num, $ask_default);
 904
 905sub extract_valid_address {
 906        my $address = shift;
 907        my $local_part_regexp = qr/[^<>"\s@]+/;
 908        my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/;
 909
 910        # check for a local address:
 911        return $address if ($address =~ /^($local_part_regexp)$/);
 912
 913        $address =~ s/^\s*<(.*)>\s*$/$1/;
 914        if ($have_email_valid) {
 915                return scalar Email::Valid->address($address);
 916        }
 917
 918        # less robust/correct than the monster regexp in Email::Valid,
 919        # but still does a 99% job, and one less dependency
 920        return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/;
 921        return;
 922}
 923
 924sub extract_valid_address_or_die {
 925        my $address = shift;
 926        $address = extract_valid_address($address);
 927        die sprintf(__("error: unable to extract a valid address from: %s\n"), $address)
 928                if !$address;
 929        return $address;
 930}
 931
 932sub validate_address {
 933        my $address = shift;
 934        while (!extract_valid_address($address)) {
 935                printf STDERR __("error: unable to extract a valid address from: %s\n"), $address;
 936                # TRANSLATORS: Make sure to include [q] [d] [e] in your
 937                # translation. The program will only accept English input
 938                # at this point.
 939                $_ = ask(__("What to do with this address? ([q]uit|[d]rop|[e]dit): "),
 940                        valid_re => qr/^(?:quit|q|drop|d|edit|e)/i,
 941                        default => 'q');
 942                if (/^d/i) {
 943                        return undef;
 944                } elsif (/^q/i) {
 945                        cleanup_compose_files();
 946                        exit(0);
 947                }
 948                $address = ask("$to_whom ",
 949                        default => "",
 950                        valid_re => qr/\@.*\./, confirm_only => 1);
 951        }
 952        return $address;
 953}
 954
 955sub validate_address_list {
 956        return (grep { defined $_ }
 957                map { validate_address($_) } @_);
 958}
 959
 960# Usually don't need to change anything below here.
 961
 962# we make a "fake" message id by taking the current number
 963# of seconds since the beginning of Unix time and tacking on
 964# a random number to the end, in case we are called quicker than
 965# 1 second since the last time we were called.
 966
 967# We'll setup a template for the message id, using the "from" address:
 968
 969my ($message_id_stamp, $message_id_serial);
 970sub make_message_id {
 971        my $uniq;
 972        if (!defined $message_id_stamp) {
 973                $message_id_stamp = strftime("%Y%m%d%H%M%S.$$", gmtime(time));
 974                $message_id_serial = 0;
 975        }
 976        $message_id_serial++;
 977        $uniq = "$message_id_stamp-$message_id_serial";
 978
 979        my $du_part;
 980        for ($sender, $repocommitter, $repoauthor) {
 981                $du_part = extract_valid_address(sanitize_address($_));
 982                last if (defined $du_part and $du_part ne '');
 983        }
 984        if (not defined $du_part or $du_part eq '') {
 985                require Sys::Hostname;
 986                $du_part = 'user@' . Sys::Hostname::hostname();
 987        }
 988        my $message_id_template = "<%s-%s>";
 989        $message_id = sprintf($message_id_template, $uniq, $du_part);
 990        #print "new message id = $message_id\n"; # Was useful for debugging
 991}
 992
 993
 994
 995$time = time - scalar $#files;
 996
 997sub unquote_rfc2047 {
 998        local ($_) = @_;
 999        my $charset;
1000        my $sep = qr/[ \t]+/;
1001        s{$re_encoded_word(?:$sep$re_encoded_word)*}{
1002                my @words = split $sep, $&;
1003                foreach (@words) {
1004                        m/$re_encoded_word/;
1005                        $charset = $1;
1006                        my $encoding = $2;
1007                        my $text = $3;
1008                        if ($encoding eq 'q' || $encoding eq 'Q') {
1009                                $_ = $text;
1010                                s/_/ /g;
1011                                s/=([0-9A-F]{2})/chr(hex($1))/egi;
1012                        } else {
1013                                # other encodings not supported yet
1014                        }
1015                }
1016                join '', @words;
1017        }eg;
1018        return wantarray ? ($_, $charset) : $_;
1019}
1020
1021sub quote_rfc2047 {
1022        local $_ = shift;
1023        my $encoding = shift || 'UTF-8';
1024        s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg;
1025        s/(.*)/=\?$encoding\?q\?$1\?=/;
1026        return $_;
1027}
1028
1029sub is_rfc2047_quoted {
1030        my $s = shift;
1031        length($s) <= 75 &&
1032        $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o;
1033}
1034
1035sub subject_needs_rfc2047_quoting {
1036        my $s = shift;
1037
1038        return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
1039}
1040
1041sub quote_subject {
1042        local $subject = shift;
1043        my $encoding = shift || 'UTF-8';
1044
1045        if (subject_needs_rfc2047_quoting($subject)) {
1046                return quote_rfc2047($subject, $encoding);
1047        }
1048        return $subject;
1049}
1050
1051# use the simplest quoting being able to handle the recipient
1052sub sanitize_address {
1053        my ($recipient) = @_;
1054
1055        # remove garbage after email address
1056        $recipient =~ s/(.*>).*$/$1/;
1057
1058        my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/);
1059
1060        if (not $recipient_name) {
1061                return $recipient;
1062        }
1063
1064        # if recipient_name is already quoted, do nothing
1065        if (is_rfc2047_quoted($recipient_name)) {
1066                return $recipient;
1067        }
1068
1069        # remove non-escaped quotes
1070        $recipient_name =~ s/(^|[^\\])"/$1/g;
1071
1072        # rfc2047 is needed if a non-ascii char is included
1073        if ($recipient_name =~ /[^[:ascii:]]/) {
1074                $recipient_name = quote_rfc2047($recipient_name);
1075        }
1076
1077        # double quotes are needed if specials or CTLs are included
1078        elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
1079                $recipient_name =~ s/([\\\r])/\\$1/g;
1080                $recipient_name = qq["$recipient_name"];
1081        }
1082
1083        return "$recipient_name $recipient_addr";
1084
1085}
1086
1087sub strip_garbage_one_address {
1088        my ($addr) = @_;
1089        chomp $addr;
1090        if ($addr =~ /^(("[^"]*"|[^"<]*)? *<[^>]*>).*/) {
1091                # "Foo Bar" <foobar@example.com> [possibly garbage here]
1092                # Foo Bar <foobar@example.com> [possibly garbage here]
1093                return $1;
1094        }
1095        if ($addr =~ /^(<[^>]*>).*/) {
1096                # <foo@example.com> [possibly garbage here]
1097                # if garbage contains other addresses, they are ignored.
1098                return $1;
1099        }
1100        if ($addr =~ /^([^"#,\s]*)/) {
1101                # address without quoting: remove anything after the address
1102                return $1;
1103        }
1104        return $addr;
1105}
1106
1107sub sanitize_address_list {
1108        return (map { sanitize_address($_) } @_);
1109}
1110
1111sub process_address_list {
1112        my @addr_list = map { parse_address_line($_) } @_;
1113        @addr_list = expand_aliases(@addr_list);
1114        @addr_list = sanitize_address_list(@addr_list);
1115        @addr_list = validate_address_list(@addr_list);
1116        return @addr_list;
1117}
1118
1119# Returns the local Fully Qualified Domain Name (FQDN) if available.
1120#
1121# Tightly configured MTAa require that a caller sends a real DNS
1122# domain name that corresponds the IP address in the HELO/EHLO
1123# handshake. This is used to verify the connection and prevent
1124# spammers from trying to hide their identity. If the DNS and IP don't
1125# match, the receiveing MTA may deny the connection.
1126#
1127# Here is a deny example of Net::SMTP with the default "localhost.localdomain"
1128#
1129# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain
1130# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host
1131#
1132# This maildomain*() code is based on ideas in Perl library Test::Reporter
1133# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain ()
1134
1135sub valid_fqdn {
1136        my $domain = shift;
1137        return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
1138}
1139
1140sub maildomain_net {
1141        my $maildomain;
1142
1143        if (eval { require Net::Domain; 1 }) {
1144                my $domain = Net::Domain::domainname();
1145                $maildomain = $domain if valid_fqdn($domain);
1146        }
1147
1148        return $maildomain;
1149}
1150
1151sub maildomain_mta {
1152        my $maildomain;
1153
1154        if (eval { require Net::SMTP; 1 }) {
1155                for my $host (qw(mailhost localhost)) {
1156                        my $smtp = Net::SMTP->new($host);
1157                        if (defined $smtp) {
1158                                my $domain = $smtp->domain;
1159                                $smtp->quit;
1160
1161                                $maildomain = $domain if valid_fqdn($domain);
1162
1163                                last if $maildomain;
1164                        }
1165                }
1166        }
1167
1168        return $maildomain;
1169}
1170
1171sub maildomain {
1172        return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
1173}
1174
1175sub smtp_host_string {
1176        if (defined $smtp_server_port) {
1177                return "$smtp_server:$smtp_server_port";
1178        } else {
1179                return $smtp_server;
1180        }
1181}
1182
1183# Returns 1 if authentication succeeded or was not necessary
1184# (smtp_user was not specified), and 0 otherwise.
1185
1186sub smtp_auth_maybe {
1187        if (!defined $smtp_authuser || $auth) {
1188                return 1;
1189        }
1190
1191        # Workaround AUTH PLAIN/LOGIN interaction defect
1192        # with Authen::SASL::Cyrus
1193        eval {
1194                require Authen::SASL;
1195                Authen::SASL->import(qw(Perl));
1196        };
1197
1198        # Check mechanism naming as defined in:
1199        # https://tools.ietf.org/html/rfc4422#page-8
1200        if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
1201                die "invalid smtp auth: '${smtp_auth}'";
1202        }
1203
1204        # TODO: Authentication may fail not because credentials were
1205        # invalid but due to other reasons, in which we should not
1206        # reject credentials.
1207        $auth = Git::credential({
1208                'protocol' => 'smtp',
1209                'host' => smtp_host_string(),
1210                'username' => $smtp_authuser,
1211                # if there's no password, "git credential fill" will
1212                # give us one, otherwise it'll just pass this one.
1213                'password' => $smtp_authpass
1214        }, sub {
1215                my $cred = shift;
1216
1217                if ($smtp_auth) {
1218                        my $sasl = Authen::SASL->new(
1219                                mechanism => $smtp_auth,
1220                                callback => {
1221                                        user => $cred->{'username'},
1222                                        pass => $cred->{'password'},
1223                                        authname => $cred->{'username'},
1224                                }
1225                        );
1226
1227                        return !!$smtp->auth($sasl);
1228                }
1229
1230                return !!$smtp->auth($cred->{'username'}, $cred->{'password'});
1231        });
1232
1233        return $auth;
1234}
1235
1236sub ssl_verify_params {
1237        eval {
1238                require IO::Socket::SSL;
1239                IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/);
1240        };
1241        if ($@) {
1242                print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n";
1243                return;
1244        }
1245
1246        if (!defined $smtp_ssl_cert_path) {
1247                # use the OpenSSL defaults
1248                return (SSL_verify_mode => SSL_VERIFY_PEER());
1249        }
1250
1251        if ($smtp_ssl_cert_path eq "") {
1252                return (SSL_verify_mode => SSL_VERIFY_NONE());
1253        } elsif (-d $smtp_ssl_cert_path) {
1254                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1255                        SSL_ca_path => $smtp_ssl_cert_path);
1256        } elsif (-f $smtp_ssl_cert_path) {
1257                return (SSL_verify_mode => SSL_VERIFY_PEER(),
1258                        SSL_ca_file => $smtp_ssl_cert_path);
1259        } else {
1260                die sprintf(__("CA path \"%s\" does not exist"), $smtp_ssl_cert_path);
1261        }
1262}
1263
1264sub file_name_is_absolute {
1265        my ($path) = @_;
1266
1267        # msys does not grok DOS drive-prefixes
1268        if ($^O eq 'msys') {
1269                return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#)
1270        }
1271
1272        require File::Spec::Functions;
1273        return File::Spec::Functions::file_name_is_absolute($path);
1274}
1275
1276# Returns 1 if the message was sent, and 0 otherwise.
1277# In actuality, the whole program dies when there
1278# is an error sending a message.
1279
1280sub send_message {
1281        my @recipients = unique_email_list(@to);
1282        @cc = (grep { my $cc = extract_valid_address_or_die($_);
1283                      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
1284                    }
1285               @cc);
1286        my $to = join (",\n\t", @recipients);
1287        @recipients = unique_email_list(@recipients,@cc,@bcclist);
1288        @recipients = (map { extract_valid_address_or_die($_) } @recipients);
1289        my $date = format_2822_time($time++);
1290        my $gitversion = '@@GIT_VERSION@@';
1291        if ($gitversion =~ m/..GIT_VERSION../) {
1292            $gitversion = Git::version();
1293        }
1294
1295        my $cc = join(",\n\t", unique_email_list(@cc));
1296        my $ccline = "";
1297        if ($cc ne '') {
1298                $ccline = "\nCc: $cc";
1299        }
1300        make_message_id() unless defined($message_id);
1301
1302        my $header = "From: $sender
1303To: $to${ccline}
1304Subject: $subject
1305Date: $date
1306Message-Id: $message_id
1307";
1308        if ($use_xmailer) {
1309                $header .= "X-Mailer: git-send-email $gitversion\n";
1310        }
1311        if ($reply_to) {
1312
1313                $header .= "In-Reply-To: $reply_to\n";
1314                $header .= "References: $references\n";
1315        }
1316        if (@xh) {
1317                $header .= join("\n", @xh) . "\n";
1318        }
1319
1320        my @sendmail_parameters = ('-i', @recipients);
1321        my $raw_from = $sender;
1322        if (defined $envelope_sender && $envelope_sender ne "auto") {
1323                $raw_from = $envelope_sender;
1324        }
1325        $raw_from = extract_valid_address($raw_from);
1326        unshift (@sendmail_parameters,
1327                        '-f', $raw_from) if(defined $envelope_sender);
1328
1329        if ($needs_confirm && !$dry_run) {
1330                print "\n$header\n";
1331                if ($needs_confirm eq "inform") {
1332                        $confirm_unconfigured = 0; # squelch this message for the rest of this run
1333                        $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation
1334                        print __ <<EOF ;
1335    The Cc list above has been expanded by additional
1336    addresses found in the patch commit message. By default
1337    send-email prompts before sending whenever this occurs.
1338    This behavior is controlled by the sendemail.confirm
1339    configuration setting.
1340
1341    For additional information, run 'git send-email --help'.
1342    To retain the current behavior, but squelch this message,
1343    run 'git config --global sendemail.confirm auto'.
1344
1345EOF
1346                }
1347                # TRANSLATORS: Make sure to include [y] [n] [q] [a] in your
1348                # translation. The program will only accept English input
1349                # at this point.
1350                $_ = ask(__("Send this email? ([y]es|[n]o|[q]uit|[a]ll): "),
1351                         valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
1352                         default => $ask_default);
1353                die __("Send this email reply required") unless defined $_;
1354                if (/^n/i) {
1355                        return 0;
1356                } elsif (/^q/i) {
1357                        cleanup_compose_files();
1358                        exit(0);
1359                } elsif (/^a/i) {
1360                        $confirm = 'never';
1361                }
1362        }
1363
1364        unshift (@sendmail_parameters, @smtp_server_options);
1365
1366        if ($dry_run) {
1367                # We don't want to send the email.
1368        } elsif (file_name_is_absolute($smtp_server)) {
1369                my $pid = open my $sm, '|-';
1370                defined $pid or die $!;
1371                if (!$pid) {
1372                        exec($smtp_server, @sendmail_parameters) or die $!;
1373                }
1374                print $sm "$header\n$message";
1375                close $sm or die $!;
1376        } else {
1377
1378                if (!defined $smtp_server) {
1379                        die __("The required SMTP server is not properly defined.")
1380                }
1381
1382                require Net::SMTP;
1383                my $use_net_smtp_ssl = version->parse($Net::SMTP::VERSION) < version->parse("2.34");
1384                $smtp_domain ||= maildomain();
1385
1386                if ($smtp_encryption eq 'ssl') {
1387                        $smtp_server_port ||= 465; # ssmtp
1388                        require IO::Socket::SSL;
1389
1390                        # Suppress "variable accessed once" warning.
1391                        {
1392                                no warnings 'once';
1393                                $IO::Socket::SSL::DEBUG = 1;
1394                        }
1395
1396                        # Net::SMTP::SSL->new() does not forward any SSL options
1397                        IO::Socket::SSL::set_client_defaults(
1398                                ssl_verify_params());
1399
1400                        if ($use_net_smtp_ssl) {
1401                                require Net::SMTP::SSL;
1402                                $smtp ||= Net::SMTP::SSL->new($smtp_server,
1403                                                              Hello => $smtp_domain,
1404                                                              Port => $smtp_server_port,
1405                                                              Debug => $debug_net_smtp);
1406                        }
1407                        else {
1408                                $smtp ||= Net::SMTP->new($smtp_server,
1409                                                         Hello => $smtp_domain,
1410                                                         Port => $smtp_server_port,
1411                                                         Debug => $debug_net_smtp,
1412                                                         SSL => 1);
1413                        }
1414                }
1415                else {
1416                        $smtp_server_port ||= 25;
1417                        $smtp ||= Net::SMTP->new($smtp_server,
1418                                                 Hello => $smtp_domain,
1419                                                 Debug => $debug_net_smtp,
1420                                                 Port => $smtp_server_port);
1421                        if ($smtp_encryption eq 'tls' && $smtp) {
1422                                if ($use_net_smtp_ssl) {
1423                                        $smtp->command('STARTTLS');
1424                                        $smtp->response();
1425                                        if ($smtp->code != 220) {
1426                                                die sprintf(__("Server does not support STARTTLS! %s"), $smtp->message);
1427                                        }
1428                                        require Net::SMTP::SSL;
1429                                        $smtp = Net::SMTP::SSL->start_SSL($smtp,
1430                                                                          ssl_verify_params())
1431                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1432                                }
1433                                else {
1434                                        $smtp->starttls(ssl_verify_params())
1435                                                or die sprintf(__("STARTTLS failed! %s"), IO::Socket::SSL::errstr());
1436                                }
1437                                $smtp_encryption = '';
1438                                # Send EHLO again to receive fresh
1439                                # supported commands
1440                                $smtp->hello($smtp_domain);
1441                        }
1442                }
1443
1444                if (!$smtp) {
1445                        die __("Unable to initialize SMTP properly. Check config and use --smtp-debug."),
1446                            " VALUES: server=$smtp_server ",
1447                            "encryption=$smtp_encryption ",
1448                            "hello=$smtp_domain",
1449                            defined $smtp_server_port ? " port=$smtp_server_port" : "";
1450                }
1451
1452                smtp_auth_maybe or die $smtp->message;
1453
1454                $smtp->mail( $raw_from ) or die $smtp->message;
1455                $smtp->to( @recipients ) or die $smtp->message;
1456                $smtp->data or die $smtp->message;
1457                $smtp->datasend("$header\n") or die $smtp->message;
1458                my @lines = split /^/, $message;
1459                foreach my $line (@lines) {
1460                        $smtp->datasend("$line") or die $smtp->message;
1461                }
1462                $smtp->dataend() or die $smtp->message;
1463                $smtp->code =~ /250|200/ or die sprintf(__("Failed to send %s\n"), $subject).$smtp->message;
1464        }
1465        if ($quiet) {
1466                printf($dry_run ? __("Dry-Sent %s\n") : __("Sent %s\n"), $subject);
1467        } else {
1468                print($dry_run ? __("Dry-OK. Log says:\n") : __("OK. Log says:\n"));
1469                if (!file_name_is_absolute($smtp_server)) {
1470                        print "Server: $smtp_server\n";
1471                        print "MAIL FROM:<$raw_from>\n";
1472                        foreach my $entry (@recipients) {
1473                            print "RCPT TO:<$entry>\n";
1474                        }
1475                } else {
1476                        print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n";
1477                }
1478                print $header, "\n";
1479                if ($smtp) {
1480                        print __("Result: "), $smtp->code, ' ',
1481                                ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
1482                } else {
1483                        print __("Result: OK\n");
1484                }
1485        }
1486
1487        return 1;
1488}
1489
1490$reply_to = $initial_reply_to;
1491$references = $initial_reply_to || '';
1492$subject = $initial_subject;
1493$message_num = 0;
1494
1495foreach my $t (@files) {
1496        open my $fh, "<", $t or die sprintf(__("can't open file %s"), $t);
1497
1498        my $author = undef;
1499        my $sauthor = undef;
1500        my $author_encoding;
1501        my $has_content_type;
1502        my $body_encoding;
1503        my $xfer_encoding;
1504        my $has_mime_version;
1505        @to = ();
1506        @cc = ();
1507        @xh = ();
1508        my $input_format = undef;
1509        my @header = ();
1510        $message = "";
1511        $message_num++;
1512        # First unfold multiline header fields
1513        while(<$fh>) {
1514                last if /^\s*$/;
1515                if (/^\s+\S/ and @header) {
1516                        chomp($header[$#header]);
1517                        s/^\s+/ /;
1518                        $header[$#header] .= $_;
1519            } else {
1520                        push(@header, $_);
1521                }
1522        }
1523        # Now parse the header
1524        foreach(@header) {
1525                if (/^From /) {
1526                        $input_format = 'mbox';
1527                        next;
1528                }
1529                chomp;
1530                if (!defined $input_format && /^[-A-Za-z]+:\s/) {
1531                        $input_format = 'mbox';
1532                }
1533
1534                if (defined $input_format && $input_format eq 'mbox') {
1535                        if (/^Subject:\s+(.*)$/i) {
1536                                $subject = $1;
1537                        }
1538                        elsif (/^From:\s+(.*)$/i) {
1539                                ($author, $author_encoding) = unquote_rfc2047($1);
1540                                $sauthor = sanitize_address($author);
1541                                next if $suppress_cc{'author'};
1542                                next if $suppress_cc{'self'} and $sauthor eq $sender;
1543                                printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1544                                        $1, $_) unless $quiet;
1545                                push @cc, $1;
1546                        }
1547                        elsif (/^To:\s+(.*)$/i) {
1548                                foreach my $addr (parse_address_line($1)) {
1549                                        printf(__("(mbox) Adding to: %s from line '%s'\n"),
1550                                                $addr, $_) unless $quiet;
1551                                        push @to, $addr;
1552                                }
1553                        }
1554                        elsif (/^Cc:\s+(.*)$/i) {
1555                                foreach my $addr (parse_address_line($1)) {
1556                                        my $qaddr = unquote_rfc2047($addr);
1557                                        my $saddr = sanitize_address($qaddr);
1558                                        if ($saddr eq $sender) {
1559                                                next if ($suppress_cc{'self'});
1560                                        } else {
1561                                                next if ($suppress_cc{'cc'});
1562                                        }
1563                                        printf(__("(mbox) Adding cc: %s from line '%s'\n"),
1564                                                $addr, $_) unless $quiet;
1565                                        push @cc, $addr;
1566                                }
1567                        }
1568                        elsif (/^Content-type:/i) {
1569                                $has_content_type = 1;
1570                                if (/charset="?([^ "]+)/) {
1571                                        $body_encoding = $1;
1572                                }
1573                                push @xh, $_;
1574                        }
1575                        elsif (/^MIME-Version/i) {
1576                                $has_mime_version = 1;
1577                                push @xh, $_;
1578                        }
1579                        elsif (/^Message-Id: (.*)/i) {
1580                                $message_id = $1;
1581                        }
1582                        elsif (/^Content-Transfer-Encoding: (.*)/i) {
1583                                $xfer_encoding = $1 if not defined $xfer_encoding;
1584                        }
1585                        elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
1586                                push @xh, $_;
1587                        }
1588
1589                } else {
1590                        # In the traditional
1591                        # "send lots of email" format,
1592                        # line 1 = cc
1593                        # line 2 = subject
1594                        # So let's support that, too.
1595                        $input_format = 'lots';
1596                        if (@cc == 0 && !$suppress_cc{'cc'}) {
1597                                printf(__("(non-mbox) Adding cc: %s from line '%s'\n"),
1598                                        $_, $_) unless $quiet;
1599                                push @cc, $_;
1600                        } elsif (!defined $subject) {
1601                                $subject = $_;
1602                        }
1603                }
1604        }
1605        # Now parse the message body
1606        while(<$fh>) {
1607                $message .=  $_;
1608                if (/^(Signed-off-by|Cc): (.*)/i) {
1609                        chomp;
1610                        my ($what, $c) = ($1, $2);
1611                        # strip garbage for the address we'll use:
1612                        $c = strip_garbage_one_address($c);
1613                        # sanitize a bit more to decide whether to suppress the address:
1614                        my $sc = sanitize_address($c);
1615                        if ($sc eq $sender) {
1616                                next if ($suppress_cc{'self'});
1617                        } else {
1618                                next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i;
1619                                next if $suppress_cc{'bodycc'} and $what =~ /Cc/i;
1620                        }
1621                        push @cc, $c;
1622                        printf(__("(body) Adding cc: %s from line '%s'\n"),
1623                                $c, $_) unless $quiet;
1624                }
1625        }
1626        close $fh;
1627
1628        push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t)
1629                if defined $to_cmd;
1630        push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t)
1631                if defined $cc_cmd && !$suppress_cc{'cccmd'};
1632
1633        if ($broken_encoding{$t} && !$has_content_type) {
1634                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1635                $has_content_type = 1;
1636                push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding";
1637                $body_encoding = $auto_8bit_encoding;
1638        }
1639
1640        if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
1641                $subject = quote_subject($subject, $auto_8bit_encoding);
1642        }
1643
1644        if (defined $sauthor and $sauthor ne $sender) {
1645                $message = "From: $author\n\n$message";
1646                if (defined $author_encoding) {
1647                        if ($has_content_type) {
1648                                if ($body_encoding eq $author_encoding) {
1649                                        # ok, we already have the right encoding
1650                                }
1651                                else {
1652                                        # uh oh, we should re-encode
1653                                }
1654                        }
1655                        else {
1656                                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1657                                $has_content_type = 1;
1658                                push @xh,
1659                                  "Content-Type: text/plain; charset=$author_encoding";
1660                        }
1661                }
1662        }
1663        if (defined $target_xfer_encoding) {
1664                $xfer_encoding = '8bit' if not defined $xfer_encoding;
1665                $message = apply_transfer_encoding(
1666                        $message, $xfer_encoding, $target_xfer_encoding);
1667                $xfer_encoding = $target_xfer_encoding;
1668        }
1669        if (defined $xfer_encoding) {
1670                push @xh, "Content-Transfer-Encoding: $xfer_encoding";
1671        }
1672        if (defined $xfer_encoding or $has_content_type) {
1673                unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version;
1674        }
1675
1676        $needs_confirm = (
1677                $confirm eq "always" or
1678                ($confirm =~ /^(?:auto|cc)$/ && @cc) or
1679                ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1));
1680        $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc);
1681
1682        @to = process_address_list(@to);
1683        @cc = process_address_list(@cc);
1684
1685        @to = (@initial_to, @to);
1686        @cc = (@initial_cc, @cc);
1687
1688        if ($message_num == 1) {
1689                if (defined $cover_cc and $cover_cc) {
1690                        @initial_cc = @cc;
1691                }
1692                if (defined $cover_to and $cover_to) {
1693                        @initial_to = @to;
1694                }
1695        }
1696
1697        my $message_was_sent = send_message();
1698
1699        # set up for the next message
1700        if ($thread && $message_was_sent &&
1701                ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
1702                $message_num == 1)) {
1703                $reply_to = $message_id;
1704                if (length $references > 0) {
1705                        $references .= "\n $message_id";
1706                } else {
1707                        $references = "$message_id";
1708                }
1709        }
1710        $message_id = undef;
1711        $num_sent++;
1712        if (defined $batch_size && $num_sent == $batch_size) {
1713                $num_sent = 0;
1714                $smtp->quit if defined $smtp;
1715                undef $smtp;
1716                undef $auth;
1717                sleep($relogin_delay) if defined $relogin_delay;
1718        }
1719}
1720
1721# Execute a command (e.g. $to_cmd) to get a list of email addresses
1722# and return a results array
1723sub recipients_cmd {
1724        my ($prefix, $what, $cmd, $file) = @_;
1725
1726        my @addresses = ();
1727        open my $fh, "-|", "$cmd \Q$file\E"
1728            or die sprintf(__("(%s) Could not execute '%s'"), $prefix, $cmd);
1729        while (my $address = <$fh>) {
1730                $address =~ s/^\s*//g;
1731                $address =~ s/\s*$//g;
1732                $address = sanitize_address($address);
1733                next if ($address eq $sender and $suppress_cc{'self'});
1734                push @addresses, $address;
1735                printf(__("(%s) Adding %s: %s from: '%s'\n"),
1736                       $prefix, $what, $address, $cmd) unless $quiet;
1737                }
1738        close $fh
1739            or die sprintf(__("(%s) failed to close pipe to '%s'"), $prefix, $cmd);
1740        return @addresses;
1741}
1742
1743cleanup_compose_files();
1744
1745sub cleanup_compose_files {
1746        unlink($compose_filename, $compose_filename . ".final") if $compose;
1747}
1748
1749$smtp->quit if $smtp;
1750
1751sub apply_transfer_encoding {
1752        my $message = shift;
1753        my $from = shift;
1754        my $to = shift;
1755
1756        return $message if ($from eq $to and $from ne '7bit');
1757
1758        require MIME::QuotedPrint;
1759        require MIME::Base64;
1760
1761        $message = MIME::QuotedPrint::decode($message)
1762                if ($from eq 'quoted-printable');
1763        $message = MIME::Base64::decode($message)
1764                if ($from eq 'base64');
1765
1766        die __("cannot send message as 7bit")
1767                if ($to eq '7bit' and $message =~ /[^[:ascii:]]/);
1768        return $message
1769                if ($to eq '7bit' or $to eq '8bit');
1770        return MIME::QuotedPrint::encode($message, "\n", 0)
1771                if ($to eq 'quoted-printable');
1772        return MIME::Base64::encode($message, "\n")
1773                if ($to eq 'base64');
1774        die __("invalid transfer encoding");
1775}
1776
1777sub unique_email_list {
1778        my %seen;
1779        my @emails;
1780
1781        foreach my $entry (@_) {
1782                my $clean = extract_valid_address_or_die($entry);
1783                $seen{$clean} ||= 0;
1784                next if $seen{$clean}++;
1785                push @emails, $entry;
1786        }
1787        return @emails;
1788}
1789
1790sub validate_patch {
1791        my $fn = shift;
1792
1793        if ($repo) {
1794                my $validate_hook = catfile(catdir($repo->repo_path(), 'hooks'),
1795                                            'sendemail-validate');
1796                my $hook_error;
1797                if (-x $validate_hook) {
1798                        my $target = abs_path($fn);
1799                        # The hook needs a correct cwd and GIT_DIR.
1800                        my $cwd_save = cwd();
1801                        chdir($repo->wc_path() or $repo->repo_path())
1802                                or die("chdir: $!");
1803                        local $ENV{"GIT_DIR"} = $repo->repo_path();
1804                        $hook_error = "rejected by sendemail-validate hook"
1805                                if system($validate_hook, $target);
1806                        chdir($cwd_save) or die("chdir: $!");
1807                }
1808                return $hook_error if $hook_error;
1809        }
1810
1811        open(my $fh, '<', $fn)
1812                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1813        while (my $line = <$fh>) {
1814                if (length($line) > 998) {
1815                        return sprintf(__("%s: patch contains a line longer than 998 characters"), $.);
1816                }
1817        }
1818        return;
1819}
1820
1821sub handle_backup {
1822        my ($last, $lastlen, $file, $known_suffix) = @_;
1823        my ($suffix, $skip);
1824
1825        $skip = 0;
1826        if (defined $last &&
1827            ($lastlen < length($file)) &&
1828            (substr($file, 0, $lastlen) eq $last) &&
1829            ($suffix = substr($file, $lastlen)) !~ /^[a-z0-9]/i) {
1830                if (defined $known_suffix && $suffix eq $known_suffix) {
1831                        printf(__("Skipping %s with backup suffix '%s'.\n"), $file, $known_suffix);
1832                        $skip = 1;
1833                } else {
1834                        # TRANSLATORS: please keep "[y|N]" as is.
1835                        my $answer = ask(sprintf(__("Do you really want to send %s? [y|N]: "), $file),
1836                                         valid_re => qr/^(?:y|n)/i,
1837                                         default => 'n');
1838                        $skip = ($answer ne 'y');
1839                        if ($skip) {
1840                                $known_suffix = $suffix;
1841                        }
1842                }
1843        }
1844        return ($skip, $known_suffix);
1845}
1846
1847sub handle_backup_files {
1848        my @file = @_;
1849        my ($last, $lastlen, $known_suffix, $skip, @result);
1850        for my $file (@file) {
1851                ($skip, $known_suffix) = handle_backup($last, $lastlen,
1852                                                       $file, $known_suffix);
1853                push @result, $file unless $skip;
1854                $last = $file;
1855                $lastlen = length($file);
1856        }
1857        return @result;
1858}
1859
1860sub file_has_nonascii {
1861        my $fn = shift;
1862        open(my $fh, '<', $fn)
1863                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1864        while (my $line = <$fh>) {
1865                return 1 if $line =~ /[^[:ascii:]]/;
1866        }
1867        return 0;
1868}
1869
1870sub body_or_subject_has_nonascii {
1871        my $fn = shift;
1872        open(my $fh, '<', $fn)
1873                or die sprintf(__("unable to open %s: %s\n"), $fn, $!);
1874        while (my $line = <$fh>) {
1875                last if $line =~ /^$/;
1876                return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
1877        }
1878        while (my $line = <$fh>) {
1879                return 1 if $line =~ /[^[:ascii:]]/;
1880        }
1881        return 0;
1882}