1#!/usr/bin/perl -w
2# Test for File::Temp - Security levels
3
4# Some of the security checking will not work on all platforms
5# Test a simple open in the cwd and tmpdir foreach of the
6# security levels
7
8use Test;
9BEGIN { plan tests => 13 }
10
11use strict;
12use File::Spec;
13
14# Set up END block - this needs to happen before we load
15# File::Temp since this END block must be evaluated after the
16# END block configured by File::Temp
17my @files; # list of files to remove
18END { foreach (@files) { ok( !(-e $_) )} }
19
20use File::Temp qw/ tempfile unlink0 /;
21ok(1);
22
23# The high security tests must currently be skipped on some platforms
24my $skipplat = ( (
25		  # No sticky bits.
26		  $^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'os2' || $^O eq 'dos' || $^O eq 'mpeix' || $^O eq 'MacOS'
27		  ) ? 1 : 0 );
28
29# Can not run high security tests in perls before 5.6.0
30my $skipperl  = ($] < 5.006 ? 1 : 0 );
31
32# Determine whether we need to skip things and why
33my $skip = 0;
34if ($skipplat) {
35  $skip = "Skip Not supported on this platform";
36} elsif ($skipperl) {
37  $skip = "Skip Perl version must be v5.6.0 for these tests";
38
39}
40
41print "# We will be skipping some tests : $skip\n" if $skip;
42
43# start off with basic checking
44
45File::Temp->safe_level( File::Temp::STANDARD );
46
47print "# Testing with STANDARD security...\n";
48
49&test_security(0);
50
51# Try medium
52
53File::Temp->safe_level( File::Temp::MEDIUM )
54  unless $skip;
55
56print "# Testing with MEDIUM security...\n";
57
58# Now we need to start skipping tests
59&test_security($skip);
60
61# Try HIGH
62
63File::Temp->safe_level( File::Temp::HIGH )
64  unless $skip;
65
66print "# Testing with HIGH security...\n";
67
68&test_security($skip);
69
70exit;
71
72# Subroutine to open two temporary files.
73# one is opened in the current dir and the other in the temp dir
74
75sub test_security {
76
77  # Read in the skip flag
78  my $skip = shift;
79
80  # If we are skipping we need to simply fake the correct number
81  # of tests -- we dont use skip since the tempfile() commands will
82  # fail with MEDIUM/HIGH security before the skip() command would be run
83  if ($skip) {
84
85    skip($skip,1);
86    skip($skip,1);
87
88    # plus we need an end block so the tests come out in the right order
89    eval q{ END { skip($skip,1); skip($skip,1)  } 1; } || die;
90
91    return;
92  }
93
94  # Create the tempfile
95  my $template = "tmpXXXXX";
96  my ($fh1, $fname1) = eval { tempfile ( $template, 
97				  DIR => File::Spec->tmpdir,
98				  UNLINK => 1,
99				);
100			    };
101
102  if (defined $fname1) {
103      print "# fname1 = $fname1\n";
104      ok( (-e $fname1) );
105      push(@files, $fname1); # store for end block
106  } elsif (File::Temp->safe_level() != File::Temp::STANDARD) {
107      chomp($@);
108      my $skip2 = "Skip: " . File::Spec->tmpdir() . " possibly insecure:  $@.  " .
109	 "See INSTALL under 'make test'";
110      skip($skip2, 1);
111      # plus we need an end block so the tests come out in the right order
112      eval q{ END { skip($skip2,1); } 1; } || die;
113  } else {
114      ok(0);
115  }
116
117  # Explicitly 
118  if ( $< < File::Temp->top_system_uid() ){
119      skip("Skip Test inappropriate for root", 1);
120      eval q{ END { skip($skip,1); } 1; } || die;
121      return;
122  }
123  my ($fh2, $fname2) = eval { tempfile ($template,  UNLINK => 1 ); };
124  if (defined $fname2) {
125      print "# fname2 = $fname2\n";
126      ok( (-e $fname2) );
127      push(@files, $fname2); # store for end block
128      close($fh2);
129  } elsif (File::Temp->safe_level() != File::Temp::STANDARD) {
130      chomp($@);
131      my $skip2 = "Skip: current directory possibly insecure: $@.  " .
132	 "See INSTALL under 'make test'";
133      skip($skip2, 1);
134      # plus we need an end block so the tests come out in the right order
135      eval q{ END { skip($skip2,1); } 1; } || die;
136  } else {
137      ok(0);
138  }
139
140}
141