#!/usr/bin/perl # # Copyright 2002,2005 Greg Kroah-Hartman # Copyright 2005 Ryan Anderson # # GPL v2 (See COPYING) # # Ported to support git "mbox" format files by Ryan Anderson # # Sends a collection of emails to the given email addresses, disturbingly fast. # # Supports two formats: # 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches) # 2. The original format support by Greg's script: # first line of the message is who to CC, # and second line is the subject of the message. # use 5.008; use strict; use warnings; use Term::ReadLine; use Getopt::Long; use Text::ParseWords; use Term::ANSIColor; use File::Temp qw/ tempdir tempfile /; use File::Spec::Functions qw(catfile); use Error qw(:try); use Git; Getopt::Long::Configure qw/ pass_through /; package FakeTerm; sub new { my ($class, $reason) = @_; return bless \$reason, shift; } sub readline { my $self = shift; die "Cannot use readline on FakeTerm: $$self"; } package main; sub usage { print < Composing: --from * Email From: --[no-]to * Email To: --[no-]cc * Email Cc: --[no-]bcc * Email Bcc: --subject * Email "Subject:" --in-reply-to * Email "In-Reply-To:" --[no-]xmailer * Add "X-Mailer:" header (default). --[no-]annotate * Review each patch that will be sent in an editor. --compose * Open an editor for introduction. --compose-encoding * Encoding to assume for introduction. --8bit-encoding * Encoding to assume 8bit mails if undeclared --transfer-encoding * Transfer encoding to use (quoted-printable, 8bit, base64) Sending: --envelope-sender * Email envelope sender. --smtp-server * Outgoing SMTP server to use. The port is optional. Default 'localhost'. --smtp-server-option * Outgoing SMTP server option to use. --smtp-server-port * Outgoing SMTP server port. --smtp-user * Username for SMTP-AUTH. --smtp-pass * Password for SMTP-AUTH; not necessary. --smtp-encryption * tls or ssl; anything else disables. --smtp-ssl * Deprecated. Use '--smtp-encryption ssl'. --smtp-ssl-cert-path * Path to ca-certificates (either directory or file). Pass an empty string to disable certificate verification. --smtp-domain * The domain name sent to HELO/EHLO handshake --smtp-debug <0|1> * Disable, enable Net::SMTP debug. Automating: --identity * Use the sendemail. options. --to-cmd * Email To: via ` \$patch_path` --cc-cmd * Email Cc: via ` \$patch_path` --suppress-cc * author, self, sob, cc, cccmd, body, bodycc, all. --[no-]cc-cover * Email Cc: addresses in the cover letter. --[no-]to-cover * Email To: addresses in the cover letter. --[no-]signed-off-by-cc * Send to Signed-off-by: addresses. Default on. --[no-]suppress-from * Send to self. Default off. --[no-]chain-reply-to * Chain In-Reply-To: fields. Default off. --[no-]thread * Use In-Reply-To: field. Default on. Administering: --confirm * Confirm recipients before sending; auto, cc, compose, always, or never. --quiet * Output one line of info per email. --dry-run * Don't actually send the emails. --[no-]validate * Perform patch sanity checks. Default on. --[no-]format-patch * understand any non optional arguments as `git format-patch` ones. --force * Send even if safety checks would prevent it. EOT exit(1); } # most mail servers generate the Date: header, but not all... sub format_2822_time { my ($time) = @_; my @localtm = localtime($time); my @gmttm = gmtime($time); my $localmin = $localtm[1] + $localtm[2] * 60; my $gmtmin = $gmttm[1] + $gmttm[2] * 60; if ($localtm[0] != $gmttm[0]) { die "local zone differs from GMT by a non-minute interval\n"; } if ((($gmttm[6] + 1) % 7) == $localtm[6]) { $localmin += 1440; } elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) { $localmin -= 1440; } elsif ($gmttm[6] != $localtm[6]) { die "local time offset greater than or equal to 24 hours\n"; } my $offset = $localmin - $gmtmin; my $offhour = $offset / 60; my $offmin = abs($offset % 60); if (abs($offhour) >= 24) { die ("local time offset greater than or equal to 24 hours\n"); } return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d", qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]], $localtm[3], qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec)[$localtm[4]], $localtm[5]+1900, $localtm[2], $localtm[1], $localtm[0], ($offset >= 0) ? '+' : '-', abs($offhour), $offmin, ); } my $have_email_valid = eval { require Email::Valid; 1 }; my $have_mail_address = eval { require Mail::Address; 1 }; my $smtp; my $auth; # Regexes for RFC 2047 productions. my $re_token = qr/[^][()<>@,;:\\"\/?.= \000-\037\177-\377]+/; my $re_encoded_text = qr/[^? \000-\037\177-\377]+/; my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/; # Variables we fill in automatically, or via prompting: my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh, $initial_reply_to,$initial_subject,@files, $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time); my $envelope_sender; # Example reply to: #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>'; my $repo = eval { Git->repository() }; my @repo = $repo ? ($repo) : (); my $term = eval { $ENV{"GIT_SEND_EMAIL_NOTTY"} ? new Term::ReadLine 'git-send-email', \*STDIN, \*STDOUT : new Term::ReadLine 'git-send-email'; }; if ($@) { $term = new FakeTerm "$@: going non-interactive"; } # Behavior modification variables my ($quiet, $dry_run) = (0, 0); my $format_patch; my $compose_filename; my $force = 0; # Handle interactive edition of files. my $multiedit; my $editor; sub do_edit { if (!defined($editor)) { $editor = Git::command_oneline('var', 'GIT_EDITOR'); } if (defined($multiedit) && !$multiedit) { map { system('sh', '-c', $editor.' "$@"', $editor, $_); if (($? & 127) || ($? >> 8)) { die("the editor exited uncleanly, aborting everything"); } } @_; } else { system('sh', '-c', $editor.' "$@"', $editor, @_); if (($? & 127) || ($? >> 8)) { die("the editor exited uncleanly, aborting everything"); } } } # Variables with corresponding config settings my ($thread, $chain_reply_to, $suppress_from, $signed_off_by_cc); my ($cover_cc, $cover_to); my ($to_cmd, $cc_cmd); my ($smtp_server, $smtp_server_port, @smtp_server_options); my ($smtp_authuser, $smtp_encryption, $smtp_ssl_cert_path); my ($identity, $aliasfiletype, @alias_files, $smtp_domain); my ($validate, $confirm); my (@suppress_cc); my ($auto_8bit_encoding); my ($compose_encoding); my ($target_xfer_encoding); my ($debug_net_smtp) = 0; # Net::SMTP, see send_message() my %config_bool_settings = ( "thread" => [\$thread, 1], "chainreplyto" => [\$chain_reply_to, 0], "suppressfrom" => [\$suppress_from, undef], "signedoffbycc" => [\$signed_off_by_cc, undef], "cccover" => [\$cover_cc, undef], "tocover" => [\$cover_to, undef], "signedoffcc" => [\$signed_off_by_cc, undef], # Deprecated "validate" => [\$validate, 1], "multiedit" => [\$multiedit, undef], "annotate" => [\$annotate, undef], "xmailer" => [\$use_xmailer, 1] ); my %config_settings = ( "smtpserver" => \$smtp_server, "smtpserverport" => \$smtp_server_port, "smtpserveroption" => \@smtp_server_options, "smtpuser" => \$smtp_authuser, "smtppass" => \$smtp_authpass, "smtpsslcertpath" => \$smtp_ssl_cert_path, "smtpdomain" => \$smtp_domain, "to" => \@initial_to, "tocmd" => \$to_cmd, "cc" => \@initial_cc, "cccmd" => \$cc_cmd, "aliasfiletype" => \$aliasfiletype, "bcc" => \@bcclist, "suppresscc" => \@suppress_cc, "envelopesender" => \$envelope_sender, "confirm" => \$confirm, "from" => \$sender, "assume8bitencoding" => \$auto_8bit_encoding, "composeencoding" => \$compose_encoding, "transferencoding" => \$target_xfer_encoding, ); my %config_path_settings = ( "aliasesfile" => \@alias_files, ); # Handle Uncouth Termination sub signal_handler { # Make text normal print color("reset"), "\n"; # SMTP password masked system "stty echo"; # tmp files from --compose if (defined $compose_filename) { if (-e $compose_filename) { print "'$compose_filename' contains an intermediate version of the email you were composing.\n"; } if (-e ($compose_filename . ".final")) { print "'$compose_filename.final' contains the composed email.\n" } } exit; }; $SIG{TERM} = \&signal_handler; $SIG{INT} = \&signal_handler; # Begin by accumulating all the variables (defined above), that we will end up # needing, first, from the command line: my $help; my $rc = GetOptions("h" => \$help, "sender|from=s" => \$sender, "in-reply-to=s" => \$initial_reply_to, "subject=s" => \$initial_subject, "to=s" => \@initial_to, "to-cmd=s" => \$to_cmd, "no-to" => \$no_to, "cc=s" => \@initial_cc, "no-cc" => \$no_cc, "bcc=s" => \@bcclist, "no-bcc" => \$no_bcc, "chain-reply-to!" => \$chain_reply_to, "no-chain-reply-to" => sub {$chain_reply_to = 0}, "smtp-server=s" => \$smtp_server, "smtp-server-option=s" => \@smtp_server_options, "smtp-server-port=s" => \$smtp_server_port, "smtp-user=s" => \$smtp_authuser, "smtp-pass:s" => \$smtp_authpass, "smtp-ssl" => sub { $smtp_encryption = 'ssl' }, "smtp-encryption=s" => \$smtp_encryption, "smtp-ssl-cert-path=s" => \$smtp_ssl_cert_path, "smtp-debug:i" => \$debug_net_smtp, "smtp-domain:s" => \$smtp_domain, "identity=s" => \$identity, "annotate!" => \$annotate, "no-annotate" => sub {$annotate = 0}, "compose" => \$compose, "quiet" => \$quiet, "cc-cmd=s" => \$cc_cmd, "suppress-from!" => \$suppress_from, "no-suppress-from" => sub {$suppress_from = 0}, "suppress-cc=s" => \@suppress_cc, "signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc, "no-signed-off-cc|no-signed-off-by-cc" => sub {$signed_off_by_cc = 0}, "cc-cover|cc-cover!" => \$cover_cc, "no-cc-cover" => sub {$cover_cc = 0}, "to-cover|to-cover!" => \$cover_to, "no-to-cover" => sub {$cover_to = 0}, "confirm=s" => \$confirm, "dry-run" => \$dry_run, "envelope-sender=s" => \$envelope_sender, "thread!" => \$thread, "no-thread" => sub {$thread = 0}, "validate!" => \$validate, "no-validate" => sub {$validate = 0}, "transfer-encoding=s" => \$target_xfer_encoding, "format-patch!" => \$format_patch, "no-format-patch" => sub {$format_patch = 0}, "8bit-encoding=s" => \$auto_8bit_encoding, "compose-encoding=s" => \$compose_encoding, "force" => \$force, "xmailer!" => \$use_xmailer, "no-xmailer" => sub {$use_xmailer = 0}, ); usage() if $help; unless ($rc) { usage(); } die "Cannot run git format-patch from outside a repository\n" if $format_patch and not $repo; # Now, let's fill any that aren't set in with defaults: sub read_config { my ($prefix) = @_; foreach my $setting (keys %config_bool_settings) { my $target = $config_bool_settings{$setting}->[0]; $$target = Git::config_bool(@repo, "$prefix.$setting") unless (defined $$target); } foreach my $setting (keys %config_path_settings) { my $target = $config_path_settings{$setting}; if (ref($target) eq "ARRAY") { unless (@$target) { my @values = Git::config_path(@repo, "$prefix.$setting"); @$target = @values if (@values && defined $values[0]); } } else { $$target = Git::config_path(@repo, "$prefix.$setting") unless (defined $$target); } } foreach my $setting (keys %config_settings) { my $target = $config_settings{$setting}; next if $setting eq "to" and defined $no_to; next if $setting eq "cc" and defined $no_cc; next if $setting eq "bcc" and defined $no_bcc; if (ref($target) eq "ARRAY") { unless (@$target) { my @values = Git::config(@repo, "$prefix.$setting"); @$target = @values if (@values && defined $values[0]); } } else { $$target = Git::config(@repo, "$prefix.$setting") unless (defined $$target); } } if (!defined $smtp_encryption) { my $enc = Git::config(@repo, "$prefix.smtpencryption"); if (defined $enc) { $smtp_encryption = $enc; } elsif (Git::config_bool(@repo, "$prefix.smtpssl")) { $smtp_encryption = 'ssl'; } } } # read configuration from [sendemail "$identity"], fall back on [sendemail] $identity = Git::config(@repo, "sendemail.identity") unless (defined $identity); read_config("sendemail.$identity") if (defined $identity); read_config("sendemail"); # fall back on builtin bool defaults foreach my $setting (values %config_bool_settings) { ${$setting->[0]} = $setting->[1] unless (defined (${$setting->[0]})); } # 'default' encryption is none -- this only prevents a warning $smtp_encryption = '' unless (defined $smtp_encryption); # Set CC suppressions my(%suppress_cc); if (@suppress_cc) { foreach my $entry (@suppress_cc) { die "Unknown --suppress-cc field: '$entry'\n" unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc)$/; $suppress_cc{$entry} = 1; } } if ($suppress_cc{'all'}) { foreach my $entry (qw (cccmd cc author self sob body bodycc)) { $suppress_cc{$entry} = 1; } delete $suppress_cc{'all'}; } # If explicit old-style ones are specified, they trump --suppress-cc. $suppress_cc{'self'} = $suppress_from if defined $suppress_from; $suppress_cc{'sob'} = !$signed_off_by_cc if defined $signed_off_by_cc; if ($suppress_cc{'body'}) { foreach my $entry (qw (sob bodycc)) { $suppress_cc{$entry} = 1; } delete $suppress_cc{'body'}; } # Set confirm's default value my $confirm_unconfigured = !defined $confirm; if ($confirm_unconfigured) { $confirm = scalar %suppress_cc ? 'compose' : 'auto'; }; die "Unknown --confirm setting: '$confirm'\n" unless $confirm =~ /^(?:auto|cc|compose|always|never)/; # Debugging, print out the suppressions. if (0) { print "suppressions:\n"; foreach my $entry (keys %suppress_cc) { printf " %-5s -> $suppress_cc{$entry}\n", $entry; } } my ($repoauthor, $repocommitter); ($repoauthor) = Git::ident_person(@repo, 'author'); ($repocommitter) = Git::ident_person(@repo, 'committer'); # Verify the user input foreach my $entry (@initial_to) { die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/; } foreach my $entry (@initial_cc) { die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/; } foreach my $entry (@bcclist) { die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/; } sub parse_address_line { if ($have_mail_address) { return map { $_->format } Mail::Address->parse($_[0]); } else { return split_addrs($_[0]); } } sub split_addrs { return quotewords('\s*,\s*', 1, @_); } my %aliases; my %parse_alias = ( # multiline formats can be supported in the future mutt => sub { my $fh = shift; while (<$fh>) { if (/^\s*alias\s+(?:-group\s+\S+\s+)*(\S+)\s+(.*)$/) { my ($alias, $addr) = ($1, $2); $addr =~ s/#.*$//; # mutt allows # comments # commas delimit multiple addresses $aliases{$alias} = [ split_addrs($addr) ]; }}}, mailrc => sub { my $fh = shift; while (<$fh>) { if (/^alias\s+(\S+)\s+(.*)$/) { # spaces delimit multiple addresses $aliases{$1} = [ quotewords('\s+', 0, $2) ]; }}}, pine => sub { my $fh = shift; my $f='\t[^\t]*'; for (my $x = ''; defined($x); $x = $_) { chomp $x; $x .= $1 while(defined($_ = <$fh>) && /^ +(.*)$/); $x =~ /^(\S+)$f\t\(?([^\t]+?)\)?(:?$f){0,2}$/ or next; $aliases{$1} = [ split_addrs($2) ]; }}, elm => sub { my $fh = shift; while (<$fh>) { if (/^(\S+)\s+=\s+[^=]+=\s(\S+)/) { my ($alias, $addr) = ($1, $2); $aliases{$alias} = [ split_addrs($addr) ]; } } }, gnus => sub { my $fh = shift; while (<$fh>) { if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) { $aliases{$1} = [ $2 ]; }}} ); if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) { foreach my $file (@alias_files) { open my $fh, '<', $file or die "opening $file: $!\n"; $parse_alias{$aliasfiletype}->($fh); close $fh; } } ($sender) = expand_aliases($sender) if defined $sender; # is_format_patch_arg($f) returns 0 if $f names a patch, or 1 if # $f is a revision list specification to be passed to format-patch. sub is_format_patch_arg { return unless $repo; my $f = shift; try { $repo->command('rev-parse', '--verify', '--quiet', $f); if (defined($format_patch)) { return $format_patch; } die(<command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts); } if ($validate) { foreach my $f (@files) { unless (-p $f) { my $error = validate_patch($f); $error and die "fatal: $f: $error\nwarning: no patches were sent\n"; } } } if (@files) { unless ($quiet) { print $_,"\n" for (@files); } } else { print STDERR "\nNo patch files specified!\n\n"; usage(); } sub get_patch_subject { my $fn = shift; open (my $fh, '<', $fn); while (my $line = <$fh>) { next unless ($line =~ /^Subject: (.*)$/); close $fh; return "GIT: $1\n"; } close $fh; die "No subject line in $fn ?"; } if ($compose) { # Note that this does not need to be secure, but we will make a small # effort to have it be unique $compose_filename = ($repo ? tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) : tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1]; open my $c, ">", $compose_filename or die "Failed to open for writing $compose_filename: $!"; my $tpl_sender = $sender || $repoauthor || $repocommitter || ''; my $tpl_subject = $initial_subject || ''; my $tpl_reply_to = $initial_reply_to || ''; print $c <", $compose_filename . ".final" or die "Failed to open $compose_filename.final : " . $!; open $c, "<", $compose_filename or die "Failed to open $compose_filename : " . $!; my $need_8bit_cte = file_has_nonascii($compose_filename); my $in_body = 0; my $summary_empty = 1; if (!defined $compose_encoding) { $compose_encoding = "UTF-8"; } while(<$c>) { next if m/^GIT:/; if ($in_body) { $summary_empty = 0 unless (/^\n$/); } elsif (/^\n$/) { $in_body = 1; if ($need_8bit_cte) { print $c2 "MIME-Version: 1.0\n", "Content-Type: text/plain; ", "charset=$compose_encoding\n", "Content-Transfer-Encoding: 8bit\n"; } } elsif (/^MIME-Version:/i) { $need_8bit_cte = 0; } elsif (/^Subject:\s*(.+)\s*$/i) { $initial_subject = $1; my $subject = $initial_subject; $_ = "Subject: " . quote_subject($subject, $compose_encoding) . "\n"; } elsif (/^In-Reply-To:\s*(.+)\s*$/i) { $initial_reply_to = $1; next; } elsif (/^From:\s*(.+)\s*$/i) { $sender = $1; next; } elsif (/^(?:To|Cc|Bcc):/i) { print "To/Cc/Bcc fields are not interpreted yet, they have been ignored\n"; next; } print $c2 $_; } close $c; close $c2; if ($summary_empty) { print "Summary email is empty, skipping it\n"; $compose = -1; } } elsif ($annotate) { do_edit(@files); } sub ask { my ($prompt, %arg) = @_; my $valid_re = $arg{valid_re}; my $default = $arg{default}; my $confirm_only = $arg{confirm_only}; my $resp; my $i = 0; return defined $default ? $default : undef unless defined $term->IN and defined fileno($term->IN) and defined $term->OUT and defined fileno($term->OUT); while ($i++ < 10) { $resp = $term->readline($prompt); if (!defined $resp) { # EOF print "\n"; return defined $default ? $default : undef; } if ($resp eq '' and defined $default) { return $default; } if (!defined $valid_re or $resp =~ /$valid_re/) { return $resp; } if ($confirm_only) { my $yesno = $term->readline("Are you sure you want to use <$resp> [y/N]? "); if (defined $yesno && $yesno =~ /y/i) { return $resp; } } } return; } my %broken_encoding; sub file_declares_8bit_cte { my $fn = shift; open (my $fh, '<', $fn); while (my $line = <$fh>) { last if ($line =~ /^$/); return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/); } close $fh; return 0; } foreach my $f (@files) { next unless (body_or_subject_has_nonascii($f) && !file_declares_8bit_cte($f)); $broken_encoding{$f} = 1; } if (!defined $auto_8bit_encoding && scalar %broken_encoding) { print "The following files are 8bit, but do not declare " . "a Content-Transfer-Encoding.\n"; foreach my $f (sort keys %broken_encoding) { print " $f\n"; } $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ", valid_re => qr/.{4}/, confirm_only => 1, default => "UTF-8"); } if (!$force) { for my $f (@files) { if (get_patch_subject($f) =~ /\Q*** SUBJECT HERE ***\E/) { die "Refusing to send because the patch\n\t$f\n" . "has the template subject '*** SUBJECT HERE ***'. " . "Pass --force if you really want to send.\n"; } } } if (!defined $sender) { $sender = $repoauthor || $repocommitter || ''; } # $sender could be an already sanitized address # (e.g. sendemail.from could be manually sanitized by user). # But it's a no-op to run sanitize_address on an already sanitized address. $sender = sanitize_address($sender); my $prompting = 0; if (!@initial_to && !defined $to_cmd) { my $to = ask("Who should the emails be sent to (if any)? ", default => "", valid_re => qr/\@.*\./, confirm_only => 1); push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later $prompting++; } sub expand_aliases { return map { expand_one_alias($_) } @_; } my %EXPANDED_ALIASES; sub expand_one_alias { my $alias = shift; if ($EXPANDED_ALIASES{$alias}) { die "fatal: alias '$alias' expands to itself\n"; } local $EXPANDED_ALIASES{$alias} = 1; return $aliases{$alias} ? expand_aliases(@{$aliases{$alias}}) : $alias; } @initial_to = expand_aliases(@initial_to); @initial_to = validate_address_list(sanitize_address_list(@initial_to)); @initial_cc = expand_aliases(@initial_cc); @initial_cc = validate_address_list(sanitize_address_list(@initial_cc)); @bcclist = expand_aliases(@bcclist); @bcclist = validate_address_list(sanitize_address_list(@bcclist)); if ($thread && !defined $initial_reply_to && $prompting) { $initial_reply_to = ask( "Message-ID to be used as In-Reply-To for the first email (if any)? ", default => "", valid_re => qr/\@.*\./, confirm_only => 1); } if (defined $initial_reply_to) { $initial_reply_to =~ s/^\s*?\s*$//; $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne ''; } if (!defined $smtp_server) { foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) { if (-x $_) { $smtp_server = $_; last; } } $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug* } if ($compose && $compose > 0) { @files = ($compose_filename . ".final", @files); } # Variables we set as part of the loop over files our ($message_id, %mail, $subject, $reply_to, $references, $message, $needs_confirm, $message_num, $ask_default); sub extract_valid_address { my $address = shift; my $local_part_regexp = qr/[^<>"\s@]+/; my $domain_regexp = qr/[^.<>"\s@]+(?:\.[^.<>"\s@]+)+/; # check for a local address: return $address if ($address =~ /^($local_part_regexp)$/); $address =~ s/^\s*<(.*)>\s*$/$1/; if ($have_email_valid) { return scalar Email::Valid->address($address); } # less robust/correct than the monster regexp in Email::Valid, # but still does a 99% job, and one less dependency return $1 if $address =~ /($local_part_regexp\@$domain_regexp)/; return; } sub extract_valid_address_or_die { my $address = shift; $address = extract_valid_address($address); die "error: unable to extract a valid address from: $address\n" if !$address; return $address; } sub validate_address { my $address = shift; while (!extract_valid_address($address)) { print STDERR "error: unable to extract a valid address from: $address\n"; $_ = ask("What to do with this address? ([q]uit|[d]rop|[e]dit): ", valid_re => qr/^(?:quit|q|drop|d|edit|e)/i, default => 'q'); if (/^d/i) { return undef; } elsif (/^q/i) { cleanup_compose_files(); exit(0); } $address = ask("Who should the email be sent to (if any)? ", default => "", valid_re => qr/\@.*\./, confirm_only => 1); } return $address; } sub validate_address_list { return (grep { defined $_ } map { validate_address($_) } @_); } # Usually don't need to change anything below here. # we make a "fake" message id by taking the current number # of seconds since the beginning of Unix time and tacking on # a random number to the end, in case we are called quicker than # 1 second since the last time we were called. # We'll setup a template for the message id, using the "from" address: my ($message_id_stamp, $message_id_serial); sub make_message_id { my $uniq; if (!defined $message_id_stamp) { $message_id_stamp = sprintf("%s-%s", time, $$); $message_id_serial = 0; } $message_id_serial++; $uniq = "$message_id_stamp-$message_id_serial"; my $du_part; for ($sender, $repocommitter, $repoauthor) { $du_part = extract_valid_address(sanitize_address($_)); last if (defined $du_part and $du_part ne ''); } if (not defined $du_part or $du_part eq '') { require Sys::Hostname; $du_part = 'user@' . Sys::Hostname::hostname(); } my $message_id_template = "<%s-git-send-email-%s>"; $message_id = sprintf($message_id_template, $uniq, $du_part); #print "new message id = $message_id\n"; # Was useful for debugging } $time = time - scalar $#files; sub unquote_rfc2047 { local ($_) = @_; my $charset; my $sep = qr/[ \t]+/; s{$re_encoded_word(?:$sep$re_encoded_word)*}{ my @words = split $sep, $&; foreach (@words) { m/$re_encoded_word/; $charset = $1; my $encoding = $2; my $text = $3; if ($encoding eq 'q' || $encoding eq 'Q') { $_ = $text; s/_/ /g; s/=([0-9A-F]{2})/chr(hex($1))/egi; } else { # other encodings not supported yet } } join '', @words; }eg; return wantarray ? ($_, $charset) : $_; } sub quote_rfc2047 { local $_ = shift; my $encoding = shift || 'UTF-8'; s/([^-a-zA-Z0-9!*+\/])/sprintf("=%02X", ord($1))/eg; s/(.*)/=\?$encoding\?q\?$1\?=/; return $_; } sub is_rfc2047_quoted { my $s = shift; length($s) <= 75 && $s =~ m/^(?:"[[:ascii:]]*"|$re_encoded_word)$/o; } sub subject_needs_rfc2047_quoting { my $s = shift; return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/); } sub quote_subject { local $subject = shift; my $encoding = shift || 'UTF-8'; if (subject_needs_rfc2047_quoting($subject)) { return quote_rfc2047($subject, $encoding); } return $subject; } # use the simplest quoting being able to handle the recipient sub sanitize_address { my ($recipient) = @_; # remove garbage after email address $recipient =~ s/(.*>).*$/$1/; my ($recipient_name, $recipient_addr) = ($recipient =~ /^(.*?)\s*(<.*)/); if (not $recipient_name) { return $recipient; } # if recipient_name is already quoted, do nothing if (is_rfc2047_quoted($recipient_name)) { return $recipient; } # rfc2047 is needed if a non-ascii char is included if ($recipient_name =~ /[^[:ascii:]]/) { $recipient_name =~ s/^"(.*)"$/$1/; $recipient_name = quote_rfc2047($recipient_name); } # double quotes are needed if specials or CTLs are included elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) { $recipient_name =~ s/(["\\\r])/\\$1/g; $recipient_name = qq["$recipient_name"]; } return "$recipient_name $recipient_addr"; } sub sanitize_address_list { return (map { sanitize_address($_) } @_); } # Returns the local Fully Qualified Domain Name (FQDN) if available. # # Tightly configured MTAa require that a caller sends a real DNS # domain name that corresponds the IP address in the HELO/EHLO # handshake. This is used to verify the connection and prevent # spammers from trying to hide their identity. If the DNS and IP don't # match, the receiveing MTA may deny the connection. # # Here is a deny example of Net::SMTP with the default "localhost.localdomain" # # Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain # Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host # # This maildomain*() code is based on ideas in Perl library Test::Reporter # /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain () sub valid_fqdn { my $domain = shift; return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./; } sub maildomain_net { my $maildomain; if (eval { require Net::Domain; 1 }) { my $domain = Net::Domain::domainname(); $maildomain = $domain if valid_fqdn($domain); } return $maildomain; } sub maildomain_mta { my $maildomain; if (eval { require Net::SMTP; 1 }) { for my $host (qw(mailhost localhost)) { my $smtp = Net::SMTP->new($host); if (defined $smtp) { my $domain = $smtp->domain; $smtp->quit; $maildomain = $domain if valid_fqdn($domain); last if $maildomain; } } } return $maildomain; } sub maildomain { return maildomain_net() || maildomain_mta() || 'localhost.localdomain'; } sub smtp_host_string { if (defined $smtp_server_port) { return "$smtp_server:$smtp_server_port"; } else { return $smtp_server; } } # Returns 1 if authentication succeeded or was not necessary # (smtp_user was not specified), and 0 otherwise. sub smtp_auth_maybe { if (!defined $smtp_authuser || $auth) { return 1; } # Workaround AUTH PLAIN/LOGIN interaction defect # with Authen::SASL::Cyrus eval { require Authen::SASL; Authen::SASL->import(qw(Perl)); }; # TODO: Authentication may fail not because credentials were # invalid but due to other reasons, in which we should not # reject credentials. $auth = Git::credential({ 'protocol' => 'smtp', 'host' => smtp_host_string(), 'username' => $smtp_authuser, # if there's no password, "git credential fill" will # give us one, otherwise it'll just pass this one. 'password' => $smtp_authpass }, sub { my $cred = shift; return !!$smtp->auth($cred->{'username'}, $cred->{'password'}); }); return $auth; } sub ssl_verify_params { eval { require IO::Socket::SSL; IO::Socket::SSL->import(qw/SSL_VERIFY_PEER SSL_VERIFY_NONE/); }; if ($@) { print STDERR "Not using SSL_VERIFY_PEER due to out-of-date IO::Socket::SSL.\n"; return; } if (!defined $smtp_ssl_cert_path) { # use the OpenSSL defaults return (SSL_verify_mode => SSL_VERIFY_PEER()); } if ($smtp_ssl_cert_path eq "") { return (SSL_verify_mode => SSL_VERIFY_NONE()); } elsif (-d $smtp_ssl_cert_path) { return (SSL_verify_mode => SSL_VERIFY_PEER(), SSL_ca_path => $smtp_ssl_cert_path); } elsif (-f $smtp_ssl_cert_path) { return (SSL_verify_mode => SSL_VERIFY_PEER(), SSL_ca_file => $smtp_ssl_cert_path); } else { print STDERR "Not using SSL_VERIFY_PEER because the CA path does not exist.\n"; return (SSL_verify_mode => SSL_VERIFY_NONE()); } } sub file_name_is_absolute { my ($path) = @_; # msys does not grok DOS drive-prefixes if ($^O eq 'msys') { return ($path =~ m#^/# || $path =~ m#^[a-zA-Z]\:#) } require File::Spec::Functions; return File::Spec::Functions::file_name_is_absolute($path); } # Returns 1 if the message was sent, and 0 otherwise. # In actuality, the whole program dies when there # is an error sending a message. sub send_message { my @recipients = unique_email_list(@to); @cc = (grep { my $cc = extract_valid_address_or_die($_); not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients } @cc); my $to = join (",\n\t", @recipients); @recipients = unique_email_list(@recipients,@cc,@bcclist); @recipients = (map { extract_valid_address_or_die($_) } @recipients); my $date = format_2822_time($time++); my $gitversion = '@@GIT_VERSION@@'; if ($gitversion =~ m/..GIT_VERSION../) { $gitversion = Git::version(); } my $cc = join(",\n\t", unique_email_list(@cc)); my $ccline = ""; if ($cc ne '') { $ccline = "\nCc: $cc"; } make_message_id() unless defined($message_id); my $header = "From: $sender To: $to${ccline} Subject: $subject Date: $date Message-Id: $message_id "; if ($use_xmailer) { $header .= "X-Mailer: git-send-email $gitversion\n"; } if ($reply_to) { $header .= "In-Reply-To: $reply_to\n"; $header .= "References: $references\n"; } if (@xh) { $header .= join("\n", @xh) . "\n"; } my @sendmail_parameters = ('-i', @recipients); my $raw_from = $sender; if (defined $envelope_sender && $envelope_sender ne "auto") { $raw_from = $envelope_sender; } $raw_from = extract_valid_address($raw_from); unshift (@sendmail_parameters, '-f', $raw_from) if(defined $envelope_sender); if ($needs_confirm && !$dry_run) { print "\n$header\n"; if ($needs_confirm eq "inform") { $confirm_unconfigured = 0; # squelch this message for the rest of this run $ask_default = "y"; # assume yes on EOF since user hasn't explicitly asked for confirmation print " The Cc list above has been expanded by additional\n"; print " addresses found in the patch commit message. By default\n"; print " send-email prompts before sending whenever this occurs.\n"; print " This behavior is controlled by the sendemail.confirm\n"; print " configuration setting.\n"; print "\n"; print " For additional information, run 'git send-email --help'.\n"; print " To retain the current behavior, but squelch this message,\n"; print " run 'git config --global sendemail.confirm auto'.\n\n"; } $_ = ask("Send this email? ([y]es|[n]o|[q]uit|[a]ll): ", valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i, default => $ask_default); die "Send this email reply required" unless defined $_; if (/^n/i) { return 0; } elsif (/^q/i) { cleanup_compose_files(); exit(0); } elsif (/^a/i) { $confirm = 'never'; } } unshift (@sendmail_parameters, @smtp_server_options); if ($dry_run) { # We don't want to send the email. } elsif (file_name_is_absolute($smtp_server)) { my $pid = open my $sm, '|-'; defined $pid or die $!; if (!$pid) { exec($smtp_server, @sendmail_parameters) or die $!; } print $sm "$header\n$message"; close $sm or die $!; } else { if (!defined $smtp_server) { die "The required SMTP server is not properly defined." } if ($smtp_encryption eq 'ssl') { $smtp_server_port ||= 465; # ssmtp require Net::SMTP::SSL; $smtp_domain ||= maildomain(); require IO::Socket::SSL; # Net::SMTP::SSL->new() does not forward any SSL options IO::Socket::SSL::set_client_defaults( ssl_verify_params()); $smtp ||= Net::SMTP::SSL->new($smtp_server, Hello => $smtp_domain, Port => $smtp_server_port, Debug => $debug_net_smtp); } else { require Net::SMTP; $smtp_domain ||= maildomain(); $smtp_server_port ||= 25; $smtp ||= Net::SMTP->new($smtp_server, Hello => $smtp_domain, Debug => $debug_net_smtp, Port => $smtp_server_port); if ($smtp_encryption eq 'tls' && $smtp) { require Net::SMTP::SSL; $smtp->command('STARTTLS'); $smtp->response(); if ($smtp->code == 220) { $smtp = Net::SMTP::SSL->start_SSL($smtp, ssl_verify_params()) or die "STARTTLS failed! ".IO::Socket::SSL::errstr(); $smtp_encryption = ''; # Send EHLO again to receive fresh # supported commands $smtp->hello($smtp_domain); } else { die "Server does not support STARTTLS! ".$smtp->message; } } } if (!$smtp) { die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ", "VALUES: server=$smtp_server ", "encryption=$smtp_encryption ", "hello=$smtp_domain", defined $smtp_server_port ? " port=$smtp_server_port" : ""; } smtp_auth_maybe or die $smtp->message; $smtp->mail( $raw_from ) or die $smtp->message; $smtp->to( @recipients ) or die $smtp->message; $smtp->data or die $smtp->message; $smtp->datasend("$header\n$message") or die $smtp->message; $smtp->dataend() or die $smtp->message; $smtp->code =~ /250|200/ or die "Failed to send $subject\n".$smtp->message; } if ($quiet) { printf (($dry_run ? "Dry-" : "")."Sent %s\n", $subject); } else { print (($dry_run ? "Dry-" : "")."OK. Log says:\n"); if (!file_name_is_absolute($smtp_server)) { print "Server: $smtp_server\n"; print "MAIL FROM:<$raw_from>\n"; foreach my $entry (@recipients) { print "RCPT TO:<$entry>\n"; } } else { print "Sendmail: $smtp_server ".join(' ',@sendmail_parameters)."\n"; } print $header, "\n"; if ($smtp) { print "Result: ", $smtp->code, ' ', ($smtp->message =~ /\n([^\n]+\n)$/s), "\n"; } else { print "Result: OK\n"; } } return 1; } $reply_to = $initial_reply_to; $references = $initial_reply_to || ''; $subject = $initial_subject; $message_num = 0; foreach my $t (@files) { open my $fh, "<", $t or die "can't open file $t"; my $author = undef; my $sauthor = undef; my $author_encoding; my $has_content_type; my $body_encoding; my $xfer_encoding; my $has_mime_version; @to = (); @cc = (); @xh = (); my $input_format = undef; my @header = (); $message = ""; $message_num++; # First unfold multiline header fields while(<$fh>) { last if /^\s*$/; if (/^\s+\S/ and @header) { chomp($header[$#header]); s/^\s+/ /; $header[$#header] .= $_; } else { push(@header, $_); } } # Now parse the header foreach(@header) { if (/^From /) { $input_format = 'mbox'; next; } chomp; if (!defined $input_format && /^[-A-Za-z]+:\s/) { $input_format = 'mbox'; } if (defined $input_format && $input_format eq 'mbox') { if (/^Subject:\s+(.*)$/i) { $subject = $1; } elsif (/^From:\s+(.*)$/i) { ($author, $author_encoding) = unquote_rfc2047($1); $sauthor = sanitize_address($author); next if $suppress_cc{'author'}; next if $suppress_cc{'self'} and $sauthor eq $sender; printf("(mbox) Adding cc: %s from line '%s'\n", $1, $_) unless $quiet; push @cc, $1; } elsif (/^To:\s+(.*)$/i) { foreach my $addr (parse_address_line($1)) { printf("(mbox) Adding to: %s from line '%s'\n", $addr, $_) unless $quiet; push @to, $addr; } } elsif (/^Cc:\s+(.*)$/i) { foreach my $addr (parse_address_line($1)) { my $qaddr = unquote_rfc2047($addr); my $saddr = sanitize_address($qaddr); if ($saddr eq $sender) { next if ($suppress_cc{'self'}); } else { next if ($suppress_cc{'cc'}); } printf("(mbox) Adding cc: %s from line '%s'\n", $addr, $_) unless $quiet; push @cc, $addr; } } elsif (/^Content-type:/i) { $has_content_type = 1; if (/charset="?([^ "]+)/) { $body_encoding = $1; } push @xh, $_; } elsif (/^MIME-Version/i) { $has_mime_version = 1; push @xh, $_; } elsif (/^Message-Id: (.*)/i) { $message_id = $1; } elsif (/^Content-Transfer-Encoding: (.*)/i) { $xfer_encoding = $1 if not defined $xfer_encoding; } elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) { push @xh, $_; } } else { # In the traditional # "send lots of email" format, # line 1 = cc # line 2 = subject # So let's support that, too. $input_format = 'lots'; if (@cc == 0 && !$suppress_cc{'cc'}) { printf("(non-mbox) Adding cc: %s from line '%s'\n", $_, $_) unless $quiet; push @cc, $_; } elsif (!defined $subject) { $subject = $_; } } } # Now parse the message body while(<$fh>) { $message .= $_; if (/^(Signed-off-by|Cc): (.*)$/i) { chomp; my ($what, $c) = ($1, $2); chomp $c; my $sc = sanitize_address($c); if ($sc eq $sender) { next if ($suppress_cc{'self'}); } else { next if $suppress_cc{'sob'} and $what =~ /Signed-off-by/i; next if $suppress_cc{'bodycc'} and $what =~ /Cc/i; } push @cc, $c; printf("(body) Adding cc: %s from line '%s'\n", $c, $_) unless $quiet; } } close $fh; push @to, recipients_cmd("to-cmd", "to", $to_cmd, $t) if defined $to_cmd; push @cc, recipients_cmd("cc-cmd", "cc", $cc_cmd, $t) if defined $cc_cmd && !$suppress_cc{'cccmd'}; if ($broken_encoding{$t} && !$has_content_type) { $xfer_encoding = '8bit' if not defined $xfer_encoding; $has_content_type = 1; push @xh, "Content-Type: text/plain; charset=$auto_8bit_encoding"; $body_encoding = $auto_8bit_encoding; } if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) { $subject = quote_subject($subject, $auto_8bit_encoding); } if (defined $sauthor and $sauthor ne $sender) { $message = "From: $author\n\n$message"; if (defined $author_encoding) { if ($has_content_type) { if ($body_encoding eq $author_encoding) { # ok, we already have the right encoding } else { # uh oh, we should re-encode } } else { $xfer_encoding = '8bit' if not defined $xfer_encoding; $has_content_type = 1; push @xh, "Content-Type: text/plain; charset=$author_encoding"; } } } if (defined $target_xfer_encoding) { $xfer_encoding = '8bit' if not defined $xfer_encoding; $message = apply_transfer_encoding( $message, $xfer_encoding, $target_xfer_encoding); $xfer_encoding = $target_xfer_encoding; } if (defined $xfer_encoding) { push @xh, "Content-Transfer-Encoding: $xfer_encoding"; } if (defined $xfer_encoding or $has_content_type) { unshift @xh, 'MIME-Version: 1.0' unless $has_mime_version; } $needs_confirm = ( $confirm eq "always" or ($confirm =~ /^(?:auto|cc)$/ && @cc) or ($confirm =~ /^(?:auto|compose)$/ && $compose && $message_num == 1)); $needs_confirm = "inform" if ($needs_confirm && $confirm_unconfigured && @cc); @to = validate_address_list(sanitize_address_list(@to)); @cc = validate_address_list(sanitize_address_list(@cc)); @to = (@initial_to, @to); @cc = (@initial_cc, @cc); if ($message_num == 1) { if (defined $cover_cc and $cover_cc) { @initial_cc = @cc; } if (defined $cover_to and $cover_to) { @initial_to = @to; } } my $message_was_sent = send_message(); # set up for the next message if ($thread && $message_was_sent && ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 || $message_num == 1)) { $reply_to = $message_id; if (length $references > 0) { $references .= "\n $message_id"; } else { $references = "$message_id"; } } $message_id = undef; } # Execute a command (e.g. $to_cmd) to get a list of email addresses # and return a results array sub recipients_cmd { my ($prefix, $what, $cmd, $file) = @_; my @addresses = (); open my $fh, "-|", "$cmd \Q$file\E" or die "($prefix) Could not execute '$cmd'"; while (my $address = <$fh>) { $address =~ s/^\s*//g; $address =~ s/\s*$//g; $address = sanitize_address($address); next if ($address eq $sender and $suppress_cc{'self'}); push @addresses, $address; printf("($prefix) Adding %s: %s from: '%s'\n", $what, $address, $cmd) unless $quiet; } close $fh or die "($prefix) failed to close pipe to '$cmd'"; return @addresses; } cleanup_compose_files(); sub cleanup_compose_files { unlink($compose_filename, $compose_filename . ".final") if $compose; } $smtp->quit if $smtp; sub apply_transfer_encoding { my $message = shift; my $from = shift; my $to = shift; return $message if ($from eq $to and $from ne '7bit'); require MIME::QuotedPrint; require MIME::Base64; $message = MIME::QuotedPrint::decode($message) if ($from eq 'quoted-printable'); $message = MIME::Base64::decode($message) if ($from eq 'base64'); die "cannot send message as 7bit" if ($to eq '7bit' and $message =~ /[^[:ascii:]]/); return $message if ($to eq '7bit' or $to eq '8bit'); return MIME::QuotedPrint::encode($message, "\n", 0) if ($to eq 'quoted-printable'); return MIME::Base64::encode($message, "\n") if ($to eq 'base64'); die "invalid transfer encoding"; } sub unique_email_list { my %seen; my @emails; foreach my $entry (@_) { my $clean = extract_valid_address_or_die($entry); $seen{$clean} ||= 0; next if $seen{$clean}++; push @emails, $entry; } return @emails; } sub validate_patch { my $fn = shift; open(my $fh, '<', $fn) or die "unable to open $fn: $!\n"; while (my $line = <$fh>) { if (length($line) > 998) { return "$.: patch contains a line longer than 998 characters"; } } return; } sub file_has_nonascii { my $fn = shift; open(my $fh, '<', $fn) or die "unable to open $fn: $!\n"; while (my $line = <$fh>) { return 1 if $line =~ /[^[:ascii:]]/; } return 0; } sub body_or_subject_has_nonascii { my $fn = shift; open(my $fh, '<', $fn) or die "unable to open $fn: $!\n"; while (my $line = <$fh>) { last if $line =~ /^$/; return 1 if $line =~ /^Subject.*[^[:ascii:]]/; } while (my $line = <$fh>) { return 1 if $line =~ /[^[:ascii:]]/; } return 0; }