summaryrefslogtreecommitdiff
path: root/scripts/vyatta-load-user-key.pl
blob: d64dba8aa8677a84e8cb91fb1989d2674cec7af2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
#! /usr/bin/perl

# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2010 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Stephen Hemminger
# Date: February 2010
#
# **** End License ****

use lib "/opt/vyatta/share/perl5/";
use strict;
use warnings;

use Vyatta::Config;

my $sbindir = $ENV{vyatta_sbindir};

sub check_http {
    my ($url) = @_;

    #
    # error codes are send back in html, so 1st try a header
    # and look for "HTTP/1.1 200 OK"
    #
    my $rc = `curl -s -q -I $url 2>&1`;
    if ( $rc =~ /HTTP\/\d+\.?\d\s+(\d+)\s+(.*)$/mi ) {
	my $rc_code   = $1;
	my $rc_string = $2;

	die "http error: [$rc_code] $rc_string\n"
	    unless ( $rc_code == 200 );
    } else {
	die "Error: $rc\n";
    }
}

sub geturl {
    my $url = shift;

    # Is it a local file?
    unless ($url =~ m#(^[^/]\w+)://# ) {
	open(my $in, '<', $url)
	    or die "Cannot open file $url: $!\n";
	return $in;
    }

    my $proto = $1;
    check_http($url)
	if ($proto eq 'http');

    my $cmd = "curl -#";

    # Handle user@host syntax which curl doesn't do
    if ($proto eq 'scp') {
	if ($url =~ m#scp://(\w+)@(.*)# ) {
	    $cmd .= " -u $1";
	    $url = "scp://$2";
	}
    }
    $cmd .= " $url";

    open (my $curl, "-|", $cmd )
	or die "$cmd command failed: $!";

    return $curl;
}

sub getkeys {
    my ($user, $in) = @_;

    while (<$in>) {
	chomp;

	next if /^#/;	    # ignore comments

	# public key (format 2) consist of:
	# [options] keytype base64-encoded key comment
	my @fields = split / /;

	my $options;
	$options = shift @fields
	    if ($#fields == 3);

	die "Not a valid key file format (see man sshd)"
	    unless $#fields == 2;

	my ($keytype, $keycode, $comment) = @fields;
	die "Unknown key type $keytype : must be ssh-rsa or ssh-dss\n"
	    unless ($keytype eq 'ssh-rsa' || $keytype eq 'ssh-dss');

	my $cmd
	    = "set system login user $user authentication public-keys $comment";

	if ($options) {
	    system ("$sbindir/my_$cmd" . " options $options");
	    die "\"$cmd\" at "
		if ($? >> 8);
	}

	system ("$sbindir/my_$cmd" . " type $keytype");
	die "\"$cmd\" at "
	    if ($? >> 8);

	system ("$sbindir/my_$cmd" . " key $keycode");
	die "\"$cmd\" at "
	    if ($? >> 8);
    }
}

die "Incorrect number of arguments, expect\n",
    " loadkey user filename|url\n"
    unless ($#ARGV == 1);

my $user = $ARGV[0];
my $source = $ARGV[1];

my $config = new Vyatta::Config;
$config->setLevel("system login user");

die "User $user does not exist in current configuration\n"
    unless $config->exists($user);

getkeys($user, geturl($source));

system("$sbindir/my_commit");
if ( $? >> 8 ) {
    print "Load failed (commit failed)\n";
    exit 1;
}

print "Done\n";
exit 0;