Commit | Line | Data |
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1 | package Object::Remote::Connector::LocalSudo; |
2 | |
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3 | use Symbol qw(gensym); |
4 | use IPC::Open3; |
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5 | use Moo; |
6 | |
7 | extends 'Object::Remote::Connector::Local'; |
8 | |
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9 | has password_callback => (is => 'ro'); |
10 | |
11 | sub _sudo_perl_command { |
12 | my ($self, $stderr_fdno, $target_user) = @_; |
13 | return |
14 | 'sudo', '-S', '-u', $target_user, '-p', "[sudo] password please\n", |
15 | 'perl', '-MPOSIX=dup2', |
16 | '-e', 'print STDERR "GO\n"; dup2(shift(@ARGV), 2); exec(@ARGV);', |
17 | $stderr_fdno, $self->_perl_command($target_user); |
18 | } |
19 | |
20 | sub _start_perl { |
21 | my $self = shift; |
22 | open my $stderr_dup, '>&', \*STDERR or die "Couldn't dup STDERR: $!"; |
23 | my $sudo_stderr = gensym; |
24 | my $pid = open3( |
25 | my $foreign_stdin, |
26 | my $foreign_stdout, |
27 | $sudo_stderr, |
28 | $self->_sudo_perl_command(fileno($stderr_dup), @_) |
29 | ) or die "open3 failed: $!"; |
30 | chomp(my $line = <$sudo_stderr>); |
31 | if ($line eq "GO") { |
32 | # started already, we're good |
33 | } elsif ($line =~ /\[sudo\]/) { |
34 | my $cb = $self->password_callback; |
35 | die "sudo sent ${line} but we have no password callback" |
36 | unless $cb; |
37 | print $foreign_stdin $cb->($line, @_), "\n"; |
38 | chomp($line = <$sudo_stderr>); |
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39 | die "sent password and expected newline from sudo, got ${line}" |
40 | if $line; |
41 | chomp($line = <$sudo_stderr>); |
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42 | die "sent password but next line was ${line}" |
43 | unless $line eq "GO"; |
44 | } else { |
45 | die "Got inexplicable line ${line} trying to sudo"; |
46 | }; |
47 | return ($foreign_stdin, $foreign_stdout, $pid); |
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48 | }; |
49 | |
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50 | no warnings 'once'; |
51 | |
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52 | push @Object::Remote::Connection::Guess, sub { |
53 | for ($_[0]) { |
54 | # username followed by @ |
55 | if (defined and !ref and /^ ([^\@]*?) \@ $/x) { |
56 | return __PACKAGE__->new->connect($1); |
57 | } |
58 | } |
59 | return; |
60 | }; |
61 | |
62 | 1; |