[perl5.git] / ext / Storable / t / code.t

#!./perl
#
#  Copyright (c) 2002 Slaven Rezic
#
#  You may redistribute only under the same terms as Perl 5, as specified
#  in the README file that comes with the distribution.
#

sub BEGIN {
    if ($ENV{PERL_CORE}){
	chdir('t') if -d 't';
	@INC = ('.', '../lib');
    } else {
	unshift @INC, 't';
    }
    require Config; import Config;
    if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) {
        print "1..0 # Skip: Storable was not built\n";
        exit 0;
    }
}

use strict;
BEGIN {
    if (!eval q{
	use Test;
	use B::Deparse 0.61;
	use 5.6.0;
	1;
    }) {
	print "1..0 # skip: tests only work with B::Deparse 0.61 and at least perl 5.6.0\n";
	exit;
    }
    require File::Spec;
    if ($File::Spec::VERSION < 0.8) {
	print "1..0 # Skip: newer File::Spec needed\n";
	exit 0;
    }
}

BEGIN { plan tests => 49 }

use Storable qw(retrieve store nstore freeze nfreeze thaw dclone);
use Safe;

#$Storable::DEBUGME = 1;

use vars qw($freezed $thawed @obj @res $blessed_code);

$blessed_code = bless sub { "blessed" }, "Some::Package";
{ package Another::Package; sub foo { __PACKAGE__ } }

{
    no strict; # to make the life for Safe->reval easier
    sub code { "JAPH" }
}

@obj =
    ([\&code,                   # code reference
      sub { 6*7 },
      $blessed_code,            # blessed code reference
      \&Another::Package::foo,  # code in another package
      sub ($$;$) { 0 },         # prototypes
      sub { print "test\n" },
      \&Test::ok,               # large scalar
     ],

     {"a" => sub { "srt" }, "b" => \&code},

     sub { ord("a")-ord("7") },

     \&code,

     \&dclone,                 # XS function

     sub { open FOO, "/" },
    );

$Storable::Deparse = 1;
$Storable::Eval    = 1;

######################################################################
# Test freeze & thaw

$freezed = freeze $obj[0];
$thawed  = thaw $freezed;

ok($thawed->[0]->(), "JAPH");
ok($thawed->[1]->(), 42);
ok($thawed->[2]->(), "blessed");
ok($thawed->[3]->(), "Another::Package");
ok(prototype($thawed->[4]), prototype($obj[0]->[4]));

######################################################################

$freezed = freeze $obj[1];
$thawed  = thaw $freezed;

ok($thawed->{"a"}->(), "srt");
ok($thawed->{"b"}->(), "JAPH");

######################################################################

$freezed = freeze $obj[2];
$thawed  = thaw $freezed;

ok($thawed->(), 42);

######################################################################

$freezed = freeze $obj[3];
$thawed  = thaw $freezed;

ok($thawed->(), "JAPH");

######################################################################

eval { $freezed = freeze $obj[4] };
ok($@ =~ /The result of B::Deparse::coderef2text was empty/);

######################################################################
# Test dclone

my $new_sub = dclone($obj[2]);
ok($new_sub->(), $obj[2]->());

######################################################################
# Test retrieve & store

store $obj[0], 'store';
$thawed = retrieve 'store';

ok($thawed->[0]->(), "JAPH");
ok($thawed->[1]->(), 42);
ok($thawed->[2]->(), "blessed");
ok($thawed->[3]->(), "Another::Package");
ok(prototype($thawed->[4]), prototype($obj[0]->[4]));

######################################################################

nstore $obj[0], 'store';
$thawed = retrieve 'store';
unlink 'store';

ok($thawed->[0]->(), "JAPH");
ok($thawed->[1]->(), 42);
ok($thawed->[2]->(), "blessed");
ok($thawed->[3]->(), "Another::Package");
ok(prototype($thawed->[4]), prototype($obj[0]->[4]));

######################################################################
# Security with
#   $Storable::Eval
#   $Storable::Deparse

{
    local $Storable::Eval = 0;

    for my $i (0 .. 1) {
	$freezed = freeze $obj[$i];
	$@ = "";
	eval { $thawed  = thaw $freezed };
	ok($@ =~ /Can\'t eval/);
    }
}

{

    local $Storable::Deparse = 0;
    for my $i (0 .. 1) {
	$@ = "";
	eval { $freezed = freeze $obj[$i] };
	ok($@ =~ /Can\'t store CODE items/);
    }
}

{
    local $Storable::Eval = 0;
    local $Storable::forgive_me = 1;
    for my $i (0 .. 4) {
	$freezed = freeze $obj[0]->[$i];
	$@ = "";
	eval { $thawed  = thaw $freezed };
	ok($@, "");
	ok($$thawed =~ /^sub/);
    }
}

{
    local $Storable::Deparse = 0;
    local $Storable::forgive_me = 1;

    my $devnull = File::Spec->devnull;

    open(SAVEERR, ">&STDERR");
    open(STDERR, ">$devnull") or
	( print SAVEERR "Unable to redirect STDERR: $!\n" and exit(1) );

    eval { $freezed = freeze $obj[0]->[0] };

    open(STDERR, ">&SAVEERR");

    ok($@, "");
    ok($freezed ne '');
}

{
    my $safe = new Safe;
    local $Storable::Eval = sub { $safe->reval(shift) };

    $freezed = freeze $obj[0]->[0];
    $@ = "";
    eval { $thawed = thaw $freezed };
    ok($@, "");
    ok($thawed->(), "JAPH");

    $freezed = freeze $obj[0]->[6];
    eval { $thawed = thaw $freezed };
    ok($@ =~ /trapped/);

    if (0) {
	# Disable or fix this test if the internal representation of Storable
	# changes.
	skip("no malicious storable file check", 1);
    } else {
	# Construct malicious storable code
	$freezed = nfreeze $obj[0]->[0];
	my $bad_code = ';open FOO, "/badfile"';
	# 5th byte is (short) length of scalar
	my $len = ord(substr($freezed, 4, 1));
	substr($freezed, 4, 1, chr($len+length($bad_code)));
	substr($freezed, -1, 0, $bad_code);
	$@ = "";
	eval { $thawed = thaw $freezed };
	ok($@ =~ /trapped/);
    }
}

{
    my $safe = new Safe;
    # because of opcodes used in "use strict":
    $safe->permit(qw(:default require));
    local $Storable::Eval = sub { $safe->reval(shift) };

    $freezed = freeze $obj[0]->[1];
    $@ = "";
    eval { $thawed = thaw $freezed };
    ok($@, "");
    ok($thawed->(), 42);
}

{
    {
	package MySafe;
	sub new { bless {}, shift }
	sub reval {
	    my $source = $_[1];
	    # Here you can apply some nifty regexpes to ensure the
	    # safeness of the source code.
	    my $coderef = eval $source;
	    $coderef;
	}
    }

    my $safe = new MySafe;
    local $Storable::Eval = sub { $safe->reval($_[0]) };

    $freezed = freeze $obj[0];
    eval { $thawed  = thaw $freezed };
    ok($@, "");

    if ($@ ne "") {
        ok(0) for (1..5);
    } else {
	ok($thawed->[0]->(), "JAPH");
	ok($thawed->[1]->(), 42);
	ok($thawed->[2]->(), "blessed");
	ok($thawed->[3]->(), "Another::Package");
	ok(prototype($thawed->[4]), prototype($obj[0]->[4]));
    }
}
Commit	Line	Data
464b080a SR	1	#!./perl
	2	#
	3	# Copyright (c) 2002 Slaven Rezic
	4	#
	5	# You may redistribute only under the same terms as Perl 5, as specified
	6	# in the README file that comes with the distribution.
	7	#
	8
	9	sub BEGIN {
	10	if ($ENV{PERL_CORE}){
	11	chdir('t') if -d 't';
	12	@INC = ('.', '../lib');
	13	} else {
	14	unshift @INC, 't';
	15	}
	16	require Config; import Config;
	17	if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) {
	18	print "1..0 # Skip: Storable was not built\n";
	19	exit 0;
	20	}
	21	}
	22
	23	use strict;
	24	BEGIN {
	25	if (!eval q{
	26	use Test;
	27	use B::Deparse 0.61;
	28	use 5.6.0;
	29	1;
	30	}) {
	31	print "1..0 # skip: tests only work with B::Deparse 0.61 and at least perl 5.6.0\n";
	32	exit;
	33	}
	34	require File::Spec;
	35	if ($File::Spec::VERSION < 0.8) {
	36	print "1..0 # Skip: newer File::Spec needed\n";
	37	exit 0;
	38	}
	39	}
	40
197b90bc	41	BEGIN { plan tests => 49 }
464b080a SR	42
	43	use Storable qw(retrieve store nstore freeze nfreeze thaw dclone);
	44	use Safe;
	45
	46	#$Storable::DEBUGME = 1;
	47
	48	use vars qw($freezed $thawed @obj @res $blessed_code);
	49
464b080a SR	50	$blessed_code = bless sub { "blessed" }, "Some::Package";
	51	{ package Another::Package; sub foo { __PACKAGE__ } }
	52
197b90bc SR	53	{
	54	no strict; # to make the life for Safe->reval easier
	55	sub code { "JAPH" }
	56	}
	57
464b080a SR	58	@obj =
	59	([\&code, # code reference
	60	sub { 6*7 },
	61	$blessed_code, # blessed code reference
	62	\&Another::Package::foo, # code in another package
	63	sub ($$;$) { 0 }, # prototypes
	64	sub { print "test\n" },
	65	\&Test::ok, # large scalar
	66	],
	67
	68	{"a" => sub { "srt" }, "b" => \&code},
	69
	70	sub { ord("a")-ord("7") },
	71
	72	\&code,
	73
	74	\&dclone, # XS function
	75
	76	sub { open FOO, "/" },
	77	);
	78
	79	$Storable::Deparse = 1;
	80	$Storable::Eval = 1;
	81
	82	######################################################################
	83	# Test freeze & thaw
	84
	85	$freezed = freeze $obj[0];
	86	$thawed = thaw $freezed;
	87
	88	ok($thawed->[0]->(), "JAPH");
	89	ok($thawed->[1]->(), 42);
	90	ok($thawed->[2]->(), "blessed");
	91	ok($thawed->[3]->(), "Another::Package");
	92	ok(prototype($thawed->[4]), prototype($obj[0]->[4]));
	93
	94	######################################################################
	95
	96	$freezed = freeze $obj[1];
	97	$thawed = thaw $freezed;
	98
	99	ok($thawed->{"a"}->(), "srt");
	100	ok($thawed->{"b"}->(), "JAPH");
	101
	102	######################################################################
	103
	104	$freezed = freeze $obj[2];
	105	$thawed = thaw $freezed;
	106
	107	ok($thawed->(), 42);
	108
	109	######################################################################
	110
	111	$freezed = freeze $obj[3];
	112	$thawed = thaw $freezed;
	113
	114	ok($thawed->(), "JAPH");
	115
	116	######################################################################
	117
	118	eval { $freezed = freeze $obj[4] };
	119	ok($@ =~ /The result of B::Deparse::coderef2text was empty/);
	120
	121	######################################################################
122	# Test dclone
123
124	my $new_sub = dclone($obj[2]);
125	ok($new_sub->(), $obj[2]->());
126
127	######################################################################
128	# Test retrieve & store
129
130	store $obj[0], 'store';
131	$thawed = retrieve 'store';
132
133	ok($thawed->[0]->(), "JAPH");
134	ok($thawed->[1]->(), 42);
135	ok($thawed->[2]->(), "blessed");
136	ok($thawed->[3]->(), "Another::Package");
137	ok(prototype($thawed->[4]), prototype($obj[0]->[4]));
138
139	######################################################################
140
141	nstore $obj[0], 'store';
142	$thawed = retrieve 'store';
143	unlink 'store';
144
145	ok($thawed->[0]->(), "JAPH");
146	ok($thawed->[1]->(), 42);
147	ok($thawed->[2]->(), "blessed");
148	ok($thawed->[3]->(), "Another::Package");
149	ok(prototype($thawed->[4]), prototype($obj[0]->[4]));
150
151	######################################################################
152	# Security with
153	# $Storable::Eval
464b080a SR	154	# $Storable::Deparse
	155
	156	{
	157	local $Storable::Eval = 0;
	158
	159	for my $i (0 .. 1) {
	160	$freezed = freeze $obj[$i];
	161	$@ = "";
	162	eval { $thawed = thaw $freezed };
	163	ok($@ =~ /Can\'t eval/);
	164	}
	165	}
	166
	167	{
	168
	169	local $Storable::Deparse = 0;
	170	for my $i (0 .. 1) {
	171	$@ = "";
	172	eval { $freezed = freeze $obj[$i] };
	173	ok($@ =~ /Can\'t store CODE items/);
	174	}
	175	}
	176
	177	{
	178	local $Storable::Eval = 0;
	179	local $Storable::forgive_me = 1;
	180	for my $i (0 .. 4) {
	181	$freezed = freeze $obj[0]->[$i];
	182	$@ = "";
	183	eval { $thawed = thaw $freezed };
	184	ok($@, "");
	185	ok($$thawed =~ /^sub/);
	186	}
	187	}
	188
	189	{
	190	local $Storable::Deparse = 0;
	191	local $Storable::forgive_me = 1;
	192
	193	my $devnull = File::Spec->devnull;
	194
	195	open(SAVEERR, ">&STDERR");
	196	open(STDERR, ">$devnull") or
	197	( print SAVEERR "Unable to redirect STDERR: $!\n" and exit(1) );
	198
	199	eval { $freezed = freeze $obj[0]->[0] };
	200
	201	open(STDERR, ">&SAVEERR");
	202
	203	ok($@, "");
	204	ok($freezed ne '');
	205	}
	206
	207	{
	208	my $safe = new Safe;
464b080a SR	209	local $Storable::Eval = sub { $safe->reval(shift) };
464b080a SR	210
197b90bc SR	211	$freezed = freeze $obj[0]->[0];
	212	$@ = "";
	213	eval { $thawed = thaw $freezed };
	214	ok($@, "");
	215	ok($thawed->(), "JAPH");
464b080a SR	216
	217	$freezed = freeze $obj[0]->[6];
	218	eval { $thawed = thaw $freezed };
	219	ok($@ =~ /trapped/);
	220
	221	if (0) {
	222	# Disable or fix this test if the internal representation of Storable
	223	# changes.
	224	skip("no malicious storable file check", 1);
	225	} else {
	226	# Construct malicious storable code
	227	$freezed = nfreeze $obj[0]->[0];
	228	my $bad_code = ';open FOO, "/badfile"';
	229	# 5th byte is (short) length of scalar
	230	my $len = ord(substr($freezed, 4, 1));
	231	substr($freezed, 4, 1, chr($len+length($bad_code)));
	232	substr($freezed, -1, 0, $bad_code);
	233	$@ = "";
	234	eval { $thawed = thaw $freezed };
	235	ok($@ =~ /trapped/);
	236	}
	237	}
	238
	239	{
197b90bc SR	240	my $safe = new Safe;
197b90bc SR	241	# because of opcodes used in "use strict":
e279cb0b	242	$safe->permit(qw(:default require));
197b90bc SR	243	local $Storable::Eval = sub { $safe->reval(shift) };
	244
	245	$freezed = freeze $obj[0]->[1];
	246	$@ = "";
	247	eval { $thawed = thaw $freezed };
	248	ok($@, "");
	249	ok($thawed->(), 42);
	250	}
	251
	252	{
464b080a SR	253	{
	254	package MySafe;
	255	sub new { bless {}, shift }
	256	sub reval {
	257	my $source = $_[1];
	258	# Here you can apply some nifty regexpes to ensure the
	259	# safeness of the source code.
	260	my $coderef = eval $source;
	261	$coderef;
	262	}
	263	}
	264
	265	my $safe = new MySafe;
	266	local $Storable::Eval = sub { $safe->reval($_[0]) };
	267
	268	$freezed = freeze $obj[0];
	269	eval { $thawed = thaw $freezed };
	270	ok($@, "");
	271
	272	if ($@ ne "") {
	273	ok(0) for (1..5);
	274	} else {
	275	ok($thawed->[0]->(), "JAPH");
	276	ok($thawed->[1]->(), 42);
	277	ok($thawed->[2]->(), "blessed");
	278	ok($thawed->[3]->(), "Another::Package");
	279	ok(prototype($thawed->[4]), prototype($obj[0]->[4]));
	280	}
	281	}
	282