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git/git-send-email.perl

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#!/usr/bin/perl
#
# Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
# Copyright 2005 Ryan Anderson <ryan@michonline.com>
#
# GPL v2 (See COPYING)
#
# Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
#
# 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 Data::Dumper;
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 <<EOT;
git send-email [options] <file | directory | rev-list options >
Composing:
--from <str> * Email From:
--[no-]to <str> * Email To:
--[no-]cc <str> * Email Cc:
--[no-]bcc <str> * Email Bcc:
--subject <str> * Email "Subject:"
--in-reply-to <str> * Email "In-Reply-To:"
--annotate * Review each patch that will be sent in an editor.
--compose * Open an editor for introduction.
--8bit-encoding <str> * Encoding to assume 8bit mails if undeclared
Sending:
--envelope-sender <str> * Email envelope sender.
--smtp-server <str:int> * Outgoing SMTP server to use. The port
is optional. Default 'localhost'.
--smtp-server-option <str> * Outgoing SMTP server option to use.
--smtp-server-port <int> * Outgoing SMTP server port.
--smtp-user <str> * Username for SMTP-AUTH.
--smtp-pass <str> * Password for SMTP-AUTH; not necessary.
--smtp-encryption <str> * tls or ssl; anything else disables.
--smtp-ssl * Deprecated. Use '--smtp-encryption ssl'.
--smtp-domain <str> * The domain name sent to HELO/EHLO handshake
--smtp-debug <0|1> * Disable, enable Net::SMTP debug.
Automating:
--identity <str> * Use the sendemail.<id> options.
--to-cmd <str> * Email To: via `<str> \$patch_path`
--cc-cmd <str> * Email Cc: via `<str> \$patch_path`
--suppress-cc <str> * author, self, sob, cc, cccmd, body, bodycc, all.
--[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 <str> * 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;
# 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,$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 ($to_cmd, $cc_cmd);
my ($smtp_server, $smtp_server_port, @smtp_server_options);
my ($smtp_authuser, $smtp_encryption);
my ($identity, $aliasfiletype, @alias_files, $smtp_domain);
my ($validate, $confirm);
my (@suppress_cc);
my ($auto_8bit_encoding);
my ($debug_net_smtp) = 0; # Net::SMTP, see send_message()
my $not_set_by_user = "true but not set by the user";
my %config_bool_settings = (
"thread" => [\$thread, 1],
"chainreplyto" => [\$chain_reply_to, $not_set_by_user],
"suppressfrom" => [\$suppress_from, undef],
"signedoffbycc" => [\$signed_off_by_cc, undef],
"signedoffcc" => [\$signed_off_by_cc, undef], # Deprecated
"validate" => [\$validate, 1],
);
my %config_settings = (
"smtpserver" => \$smtp_server,
"smtpserverport" => \$smtp_server_port,
"smtpserveroption" => \@smtp_server_options,
"smtpuser" => \$smtp_authuser,
"smtppass" => \$smtp_authpass,
"smtpdomain" => \$smtp_domain,
"to" => \@initial_to,
"tocmd" => \$to_cmd,
"cc" => \@initial_cc,
"cccmd" => \$cc_cmd,
"aliasfiletype" => \$aliasfiletype,
"bcc" => \@bcclist,
"aliasesfile" => \@alias_files,
"suppresscc" => \@suppress_cc,
"envelopesender" => \$envelope_sender,
"multiedit" => \$multiedit,
"confirm" => \$confirm,
"from" => \$sender,
"assume8bitencoding" => \$auto_8bit_encoding,
);
# Help users prepare for 1.7.0
sub chain_reply_to {
if (defined $chain_reply_to &&
$chain_reply_to eq $not_set_by_user) {
print STDERR
"In git 1.7.0, the default has changed to --no-chain-reply-to\n" .
"Set sendemail.chainreplyto configuration variable to true if\n" .
"you want to keep --chain-reply-to as your default.\n";
$chain_reply_to = 0;
}
return $chain_reply_to;
}
# 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 $rc = GetOptions("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,
"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-debug:i" => \$debug_net_smtp,
"smtp-domain:s" => \$smtp_domain,
"identity=s" => \$identity,
"annotate" => \$annotate,
"compose" => \$compose,
"quiet" => \$quiet,
"cc-cmd=s" => \$cc_cmd,
"suppress-from!" => \$suppress_from,
"suppress-cc=s" => \@suppress_cc,
"signed-off-cc|signed-off-by-cc!" => \$signed_off_by_cc,
"confirm=s" => \$confirm,
"dry-run" => \$dry_run,
"envelope-sender=s" => \$envelope_sender,
"thread!" => \$thread,
"validate!" => \$validate,
"format-patch!" => \$format_patch,
"8bit-encoding=s" => \$auto_8bit_encoding,
"force" => \$force,
);
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 $$target);
}
foreach my $setting (keys %config_settings) {
my $target = $config_settings{$setting};
next if $setting eq "to" and defined $no_to;
next if $setting eq "cc" and defined $no_cc;
next if $setting eq "bcc" and defined $no_bcc;
if (ref($target) eq "ARRAY") {
unless (@$target) {
my @values = Git::config(@repo, "$prefix.$setting");
@$target = @values if (@values && defined $values[0]);
}
}
else {
$$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 $sender;
# returns 1 if the conflict must be solved using it as a format-patch argument
sub check_file_rev_conflict($) {
return unless $repo;
my $f = shift;
try {
$repo->command('rev-parse', '--verify', '--quiet', $f);
if (defined($format_patch)) {
return $format_patch;
}
die(<<EOF);
File '$f' exists but it could also be the range of commits
to produce patches for. Please disambiguate by...
* Saying "./$f" if you mean a file; or
* Giving --format-patch option if you mean a range.
EOF
} catch Git::Error::Command with {
return 0;
}
}
# Now that all the defaults are set, process the rest of the command line
# arguments and collect up the files that need to be processed.
my @rev_list_opts;
while (defined(my $f = shift @ARGV)) {
if ($f eq "--") {
push @rev_list_opts, "--", @ARGV;
@ARGV = ();
} elsif (-d $f and !check_file_rev_conflict($f)) {
opendir my $dh, $f
or die "Failed to opendir $f: $!";
push @files, grep { -f $_ } map { catfile($f, $_) }
sort readdir $dh;
closedir $dh;
} elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
push @files, $f;
} else {
push @rev_list_opts, $f;
}
}
if (@rev_list_opts) {
die "Cannot run git format-patch from outside a repository\n"
unless $repo;
push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
}
if ($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 <<EOT;
From $tpl_sender # This line is ignored.
GIT: Lines beginning in "GIT:" will be removed.
GIT: Consider including an overall diffstat or table of contents
GIT: for the patch you are writing.
GIT:
GIT: Clear the body content if you don't wish to send a summary.
From: $tpl_sender
Subject: $tpl_subject
In-Reply-To: $tpl_reply_to
EOT
for my $f (@files) {
print $c get_patch_subject($f);
}
close $c;
if ($annotate) {
do_edit($compose_filename, @files);
} else {
do_edit($compose_filename);
}
open my $c2, ">", $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 $summary_empty = 1;
while(<$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=UTF-8\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;
$_ = "Subject: " .
($subject =~ /[^[:ascii:]]/ ?
quote_rfc2047($subject) :
$subject) .
"\n";
} elsif (/^In-Reply-To:\s*(.+)\s*$/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 $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;
}
}
return undef;
}
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";
}
$auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
default => "UTF-8");
}
if (!$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";
}
}
}
my $prompting = 0;
if (!defined $sender) {
$sender = $repoauthor || $repocommitter || '';
$sender = ask("Who should the emails appear to be from? [$sender] ",
default => $sender);
print "Emails will be sent from: ", $sender, "\n";
$prompting++;
}
if (!@initial_to && !defined $to_cmd) {
my $to = ask("Who should the emails be sent to? ");
push @initial_to, parse_address_line($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}}) : $alias;
}
@initial_to = expand_aliases(@initial_to);
@initial_to = (map { sanitize_address($_) } @initial_to);
@initial_cc = expand_aliases(@initial_cc);
@bcclist = expand_aliases(@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 (defined $initial_reply_to) {
$initial_reply_to =~ s/^\s*<?//;
$initial_reply_to =~ s/>?\s*$//;
$initial_reply_to = "<$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);
} else {
# less robust/correct than the monster regexp in Email::Valid,
# but still does a 99% job, and one less dependency
$address =~ /($local_part_regexp\@$domain_regexp)/;
return $1;
}
}
# Usually don't need to change anything below here.
# we make a "fake" message id by taking the current number
# of seconds since the beginning of Unix time and tacking on
# a random number to the end, in case we are called quicker than
# 1 second since the last time we were called.
# We'll setup a template for the message id, using the "from" address:
my ($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 $encoding;
if (s/=\?([^?]+)\?q\?(.*)\?=/$2/g) {
$encoding = $1;
s/_/ /g;
s/=([0-9A-F]{2})/chr(hex($1))/eg;
}
return wantarray ? ($_, $encoding) : $_;
}
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;
my $token = qr/[^][()<>@,;:"\/?.= \000-\037\177-\377]+/;
my $encoded_text = qr/[!->@-~]+/;
length($s) <= 75 &&
$s =~ m/^(?:"[[:ascii:]]*"|=\?$token\?$token\?$encoded_text\?=)$/o;
}
# use the simplest quoting being able to handle the recipient
sub sanitize_address {
my ($recipient) = @_;
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";
}
# 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';
}
# 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 $cc = extract_valid_address($_);
not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
}
map { sanitize_address($_) }
@cc);
my $to = join (",\n\t", @recipients);
@recipients = unique_email_list(@recipients,@cc,@bcclist);
@recipients = (map { extract_valid_address($_) } @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";
}
my $sanitized_sender = sanitize_address($sender);
make_message_id() unless defined($message_id);
my $header = "From: $sanitized_sender
To: $to${ccline}
Subject: $subject
Date: $date
Message-Id: $message_id
X-Mailer: git-send-email $gitversion
";
if ($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 = $sanitized_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 ($smtp_server =~ m#^/#) {
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();
$smtp ||= Net::SMTP::SSL->new($smtp_server,
Hello => $smtp_domain,
Port => $smtp_server_port);
}
else {
require Net::SMTP;
$smtp_domain ||= maildomain();
$smtp ||= Net::SMTP->new((defined $smtp_server_port)
? "$smtp_server:$smtp_server_port"
: $smtp_server,
Hello => $smtp_domain,
Debug => $debug_net_smtp);
if ($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)
or die "STARTTLS failed! ".$smtp->message;
$smtp_encryption = '';
# Send EHLO again to receive fresh
# supported commands
$smtp->hello();
} else {
die "Server does not support STARTTLS! ".$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" : "";
}
if (defined $smtp_authuser) {
if (!defined $smtp_authpass) {
system "stty -echo";
do {
print "Password: ";
$_ = <STDIN>;
print "\n";
} while (!defined $_);
chomp($smtp_authpass = $_);
system "stty echo";
}
$auth ||= $smtp->auth( $smtp_authuser, $smtp_authpass ) 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 ($smtp_server !~ m#^/#) {
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 $author_encoding;
my $has_content_type;
my $body_encoding;
@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 && $input_format eq 'mbox') {
if (/^Subject:\s+(.*)$/) {
$subject = $1;
}
elsif (/^From:\s+(.*)$/) {
($author, $author_encoding) = unquote_rfc2047($1);
next if $suppress_cc{'author'};
next if $suppress_cc{'self'} and $author eq $sender;
printf("(mbox) Adding cc: %s from line '%s'\n",
$1, $_) unless $quiet;
push @cc, $1;
}
elsif (/^To:\s+(.*)$/) {
foreach my $addr (parse_address_line($1)) {
printf("(mbox) Adding to: %s from line '%s'\n",
$addr, $_) unless $quiet;
push @to, sanitize_address($addr);
}
}
elsif (/^Cc:\s+(.*)$/) {
foreach my $addr (parse_address_line($1)) {
if (unquote_rfc2047($addr) 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 (/^Message-Id: (.*)/i) {
$message_id = $1;
}
elsif (!/^Date:\s/ && /^[-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 $c;
if ($c 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) {
$has_content_type = 1;
push @xh, "MIME-Version: 1.0",
"Content-Type: text/plain; charset=$auto_8bit_encoding",
"Content-Transfer-Encoding: 8bit";
$body_encoding = $auto_8bit_encoding;
}
if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
$subject = quote_rfc2047($subject, $auto_8bit_encoding);
}
if (defined $author and $author 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 {
$has_content_type = 1;
push @xh,
'MIME-Version: 1.0',
"Content-Type: text/plain; charset=$author_encoding",
'Content-Transfer-Encoding: 8bit';
}
}
}
$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 = (@initial_to, @to);
@cc = (@initial_cc, @cc);
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 $sanitized_sender = sanitize_address($sender);
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 $sanitized_sender and $suppress_from);
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 unique_email_list {
my %seen;
my @emails;
foreach my $entry (@_) {
if (my $clean = extract_valid_address($entry)) {
$seen{$clean} ||= 0;
next if $seen{$clean}++;
push @emails, $entry;
} else {
print STDERR "W: unable to extract a valid address",
" from: $entry\n";
}
}
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 undef;
}
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;
}