Fix up path generation to use OPENSSL_MODULES
[openssl.git] / test / recipes / 90-test_store.t
1 #! /usr/bin/env perl
2 # Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
3 #
4 # Licensed under the Apache License 2.0 (the "License").  You may not use
5 # this file except in compliance with the License.  You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
8
9 use File::Spec::Functions;
10 use File::Copy;
11 use MIME::Base64;
12 use OpenSSL::Test qw(:DEFAULT srctop_file srctop_dir bldtop_file bldtop_dir
13                      data_file);
14 use OpenSSL::Test::Utils;
15
16 my $test_name = "test_store";
17 setup($test_name);
18
19 my $use_md5 = !disabled("md5");
20 my $use_des = !(disabled("des") || disabled("legacy")); # also affects 3des and pkcs12 app
21 my $use_dsa = !disabled("dsa");
22 my $use_ecc = !disabled("ec");
23
24 my @noexist_files =
25     ( "test/blahdiblah.pem",
26       "test/blahdibleh.der" );
27 my @src_files =
28     ( "test/testx509.pem",
29       "test/testrsa.pem",
30       "test/testrsapub.pem",
31       "test/testcrl.pem",
32       "apps/server.pem" );
33 my @data_files =
34     ( "testrsa.msb" );
35 push(@data_files,
36      ( "testrsa.pvk" ))
37     unless disabled("legacy") || disabled("rc4");
38 my @src_rsa_files =
39     ( "test/testrsa.pem",
40       "test/testrsapub.pem" );
41 my @generated_files =
42     (
43      ### generated from the source files
44
45      "testx509.der",
46      "testrsa.der",
47      "testrsapub.der",
48      "testcrl.der",
49
50      ### generated locally
51
52      "rsa-key-pkcs1.pem", "rsa-key-pkcs1.der",
53      "rsa-key-pkcs1-aes128.pem",
54      "rsa-key-pkcs8.pem", "rsa-key-pkcs8.der",
55      "rsa-key-pkcs8-pbes2-sha1.pem", "rsa-key-pkcs8-pbes2-sha1.der",
56      "rsa-key-pkcs8-pbes2-sha256.pem", "rsa-key-pkcs8-pbes2-sha256.der",
57     );
58 push(@generated_files, (
59      "rsa-key-pkcs8-pbes1-sha1-3des.pem", "rsa-key-pkcs8-pbes1-sha1-3des.der",
60     )) if $use_des;
61 push(@generated_files, (
62      "rsa-key-sha1-3des-sha1.p12", "rsa-key-sha1-3des-sha256.p12",
63      "rsa-key-aes256-cbc-sha256.p12",
64      "rsa-key-md5-des-sha1.p12",
65      "rsa-key-aes256-cbc-md5-des-sha256.p12"
66      )) if $use_des;
67 push(@generated_files, (
68      "rsa-key-pkcs8-pbes1-md5-des.pem", "rsa-key-pkcs8-pbes1-md5-des.der"
69      )) if $use_md5 && $use_des;
70 push(@generated_files, (
71      "dsa-key-pkcs1.pem", "dsa-key-pkcs1.der",
72      "dsa-key-pkcs1-aes128.pem",
73      "dsa-key-pkcs8.pem", "dsa-key-pkcs8.der",
74      "dsa-key-pkcs8-pbes2-sha1.pem", "dsa-key-pkcs8-pbes2-sha1.der",
75      )) if $use_dsa;
76 push(@generated_files, "dsa-key-aes256-cbc-sha256.p12") if $use_dsa && $use_des;
77 push(@generated_files, (
78      "ec-key-pkcs1.pem", "ec-key-pkcs1.der",
79      "ec-key-pkcs1-aes128.pem",
80      "ec-key-pkcs8.pem", "ec-key-pkcs8.der",
81      "ec-key-pkcs8-pbes2-sha1.pem", "ec-key-pkcs8-pbes2-sha1.der",
82      )) if $use_ecc;
83 push(@generated_files, "ec-key-aes256-cbc-sha256.p12") if $use_ecc && $use_des;
84 my %generated_file_files =
85     $^O eq 'linux'
86     ? ( "test/testx509.pem" => "file:testx509.pem",
87         "test/testrsa.pem" => "file:testrsa.pem",
88         "test/testrsapub.pem" => "file:testrsapub.pem",
89         "test/testcrl.pem" => "file:testcrl.pem",
90         "apps/server.pem" => "file:server.pem" )
91     : ();
92 my @noexist_file_files =
93     ( "file:blahdiblah.pem",
94       "file:test/blahdibleh.der" );
95
96 # There is more than one method to get a 'file:' loader.
97 # The default is a built-in provider implementation.
98 # However, there is also an engine, specially for testing purposes.
99 #
100 # @methods is a collection of extra 'openssl storeutl' arguments used to
101 # try the different methods.
102 my @methods;
103 my @prov_method = qw(-provider default);
104 push @prov_method, qw(-provider legacy) unless disabled('legacy');
105 push @methods, [ @prov_method ];
106 push @methods, [qw(-engine loader_attic)]
107     unless disabled('loadereng');
108
109 my $n = scalar @methods
110     * ( (3 * scalar @noexist_files)
111         + (6 * scalar @src_files)
112         + (2 * scalar @data_files)
113         + (4 * scalar @generated_files)
114         + (scalar keys %generated_file_files)
115         + (scalar @noexist_file_files)
116         + 3
117         + 11 );
118
119 # Test doesn't work under msys because the file name munging doesn't work
120 # correctly with the "ot:" prefix
121 my $do_test_ossltest_store =
122     !(disabled("engine") || disabled("dynamic-engine") || $^O =~ /^msys$/);
123
124 if ($do_test_ossltest_store) {
125     # test loading with apps 'org.openssl.engine:' loader, using the
126     # ossltest engine.
127     $n += 4 * scalar @src_rsa_files;
128 }
129
130 plan skip_all => "No plan" if $n == 0;
131
132 plan tests => $n;
133
134 indir "store_$$" => sub {
135     if ($do_test_ossltest_store) {
136         # ossltest loads PEM files, with names prefixed with 'ot:'.
137         # This prefix ensures that the files are, in fact, loaded through
138         # that engine and not mistakenly going through the 'file:' loader.
139
140         my $engine_scheme = 'org.openssl.engine:';
141         $ENV{OPENSSL_ENGINES} = bldtop_dir("engines");
142
143         foreach (@src_rsa_files) {
144             my $file = srctop_file($_);
145             my $file_abs = to_abs_file($file);
146             my @pubin = $_ =~ m|pub\.pem$| ? ("-pubin") : ();
147
148             ok(run(app(["openssl", "rsa", "-text", "-noout", @pubin,
149                         "-engine", "ossltest", "-inform", "engine",
150                         "-in", "ot:$file"])));
151             ok(run(app(["openssl", "rsa", "-text", "-noout", @pubin,
152                         "-engine", "ossltest", "-inform", "engine",
153                         "-in", "ot:$file_abs"])));
154             ok(run(app(["openssl", "rsa", "-text", "-noout", @pubin,
155                         "-in", "${engine_scheme}ossltest:ot:$file"])));
156             ok(run(app(["openssl", "rsa", "-text", "-noout", @pubin,
157                         "-in", "${engine_scheme}ossltest:ot:$file_abs"])));
158         }
159     }
160
161  SKIP:
162     {
163         init() or die "init failed";
164
165         my $rehash = init_rehash();
166
167         foreach my $method (@methods) {
168             my @storeutl = ( qw(openssl storeutl), @$method );
169
170             foreach (@noexist_files) {
171                 my $file = srctop_file($_);
172
173                 ok(!run(app([@storeutl, "-noout", $file])));
174                 ok(!run(app([@storeutl, "-noout", to_abs_file($file)])));
175                 {
176                     local $ENV{MSYS2_ARG_CONV_EXCL} = "file:";
177
178                     ok(!run(app([@storeutl, "-noout",
179                                  to_abs_file_uri($file)])));
180                 }
181             }
182             foreach (@src_files) {
183                 my $file = srctop_file($_);
184
185                 ok(run(app([@storeutl, "-noout", $file])));
186                 ok(run(app([@storeutl, "-noout", to_abs_file($file)])));
187               SKIP:
188                 {
189                     skip "file: tests disabled on MingW", 4  if $^O =~ /^msys$/;
190
191                     ok(run(app([@storeutl, "-noout",
192                                 to_abs_file_uri($file)])));
193                     ok(run(app([@storeutl, "-noout",
194                                 to_abs_file_uri($file, 0, "")])));
195                     ok(run(app([@storeutl, "-noout",
196                                 to_abs_file_uri($file, 0, "localhost")])));
197                     ok(!run(app([@storeutl, "-noout",
198                                  to_abs_file_uri($file, 0, "dummy")])));
199                 }
200             }
201             foreach (@data_files) {
202                 my $file = data_file($_);
203
204                 ok(run(app([@storeutl, "-noout", "-passin", "pass:password",
205                             $file])));
206                 ok(run(app([@storeutl, "-noout", "-passin", "pass:password",
207                             to_abs_file($file)])));
208             }
209             foreach (@generated_files) {
210                 ok(run(app([@storeutl, "-noout", "-passin", "pass:password",
211                             $_])));
212                 ok(run(app([@storeutl,  "-noout", "-passin", "pass:password",
213                             to_abs_file($_)])));
214
215               SKIP:
216                 {
217                     skip "file: tests disabled on MingW", 2  if $^O =~ /^msys$/;
218
219                     ok(run(app([@storeutl, "-noout", "-passin",
220                                 "pass:password", to_abs_file_uri($_)])));
221                     ok(!run(app([@storeutl, "-noout", "-passin",
222                                  "pass:password", to_file_uri($_)])));
223                 }
224             }
225             foreach (values %generated_file_files) {
226               SKIP:
227                 {
228                     skip "file: tests disabled on MingW", 1  if $^O =~ /^msys$/;
229
230                     ok(run(app([@storeutl,  "-noout", $_])));
231                 }
232             }
233             foreach (@noexist_file_files) {
234               SKIP:
235                 {
236                     skip "file: tests disabled on MingW", 1  if $^O =~ /^msys$/;
237
238                     ok(!run(app([@storeutl,  "-noout", $_])));
239                 }
240             }
241             {
242                 my $dir = srctop_dir("test", "certs");
243
244                 ok(run(app([@storeutl,  "-noout", $dir])));
245                 ok(run(app([@storeutl,  "-noout", to_abs_file($dir, 1)])));
246               SKIP:
247                 {
248                     skip "file: tests disabled on MingW", 1  if $^O =~ /^msys$/;
249
250                     ok(run(app([@storeutl,  "-noout",
251                                 to_abs_file_uri($dir, 1)])));
252                 }
253             }
254
255             ok(!run(app([@storeutl, '-noout',
256                          '-subject', '/C=AU/ST=QLD/CN=SSLeay\/rsa test cert',
257                          srctop_file('test', 'testx509.pem')])),
258                "Checking that -subject can't be used with a single file");
259
260             ok(run(app([@storeutl, '-certs', '-noout',
261                         srctop_file('test', 'testx509.pem')])),
262                "Checking that -certs returns 1 object on a certificate file");
263             ok(run(app([@storeutl, '-certs', '-noout',
264                         srctop_file('test', 'testcrl.pem')])),
265                "Checking that -certs returns 0 objects on a CRL file");
266
267             ok(run(app([@storeutl, '-crls', '-noout',
268                         srctop_file('test', 'testx509.pem')])),
269                "Checking that -crls returns 0 objects on a certificate file");
270             ok(run(app([@storeutl, '-crls', '-noout',
271                         srctop_file('test', 'testcrl.pem')])),
272                "Checking that -crls returns 1 object on a CRL file");
273
274           SKIP: {
275               skip "failed rehash initialisation", 6 unless $rehash;
276
277               # subject from testx509.pem:
278               # '/C=AU/ST=QLD/CN=SSLeay\/rsa test cert'
279               # issuer from testcrl.pem:
280               # '/C=US/O=RSA Data Security, Inc./OU=Secure Server Certification Authority'
281               ok(run(app([@storeutl, '-noout',
282                           '-subject', '/C=AU/ST=QLD/CN=SSLeay\/rsa test cert',
283                           catdir(curdir(), 'rehash')])));
284               ok(run(app([@storeutl, '-noout',
285                           '-subject',
286                           '/C=US/O=RSA Data Security, Inc./OU=Secure Server Certification Authority',
287                           catdir(curdir(), 'rehash')])));
288               ok(run(app([@storeutl, '-noout', '-certs',
289                           '-subject', '/C=AU/ST=QLD/CN=SSLeay\/rsa test cert',
290                           catdir(curdir(), 'rehash')])));
291               ok(run(app([@storeutl, '-noout', '-crls',
292                           '-subject', '/C=AU/ST=QLD/CN=SSLeay\/rsa test cert',
293                           catdir(curdir(), 'rehash')])));
294               ok(run(app([@storeutl, '-noout', '-certs',
295                           '-subject',
296                           '/C=US/O=RSA Data Security, Inc./OU=Secure Server Certification Authority',
297                           catdir(curdir(), 'rehash')])));
298               ok(run(app([@storeutl, '-noout', '-crls',
299                           '-subject',
300                           '/C=US/O=RSA Data Security, Inc./OU=Secure Server Certification Authority',
301                           catdir(curdir(), 'rehash')])));
302             }
303         }
304     }
305 }, create => 1, cleanup => 1;
306
307 sub init {
308     my $cnf = srctop_file('test', 'ca-and-certs.cnf');
309     my $cakey = srctop_file('test', 'certs', 'ca-key.pem');
310     my @std_args = qw(-provider default);
311     push @std_args, qw(-provider legacy)
312         unless disabled('legacy');
313     return (
314             # rsa-key-pkcs1.pem
315             run(app(["openssl", "pkey", @std_args,
316                      "-in", data_file("rsa-key-2432.pem"),
317                      "-out", "rsa-key-pkcs1.pem"]))
318             # rsa-key-pkcs1-aes128.pem
319             && run(app(["openssl", "rsa", @std_args,
320                         "-passout", "pass:password", "-aes128",
321                         "-in", "rsa-key-pkcs1.pem",
322                         "-out", "rsa-key-pkcs1-aes128.pem"]))
323             # dsa-key-pkcs1.pem
324             && (!$use_dsa
325                 || run(app(["openssl", "gendsa", @std_args,
326                             "-out", "dsa-key-pkcs1.pem",
327                             data_file("dsaparam.pem")])))
328             # dsa-key-pkcs1-aes128.pem
329             && (!$use_dsa
330                 || run(app(["openssl", "dsa", @std_args,
331                             "-passout", "pass:password", "-aes128",
332                             "-in", "dsa-key-pkcs1.pem",
333                             "-out", "dsa-key-pkcs1-aes128.pem"])))
334             # ec-key-pkcs1.pem (one might think that 'genec' would be practical)
335             && (!$use_ecc
336                 || run(app(["openssl", "ecparam", @std_args,
337                             "-genkey",
338                             "-name", "prime256v1",
339                             "-out", "ec-key-pkcs1.pem"])))
340             # ec-key-pkcs1-aes128.pem
341             && (!$use_ecc
342                 || run(app(["openssl", "ec", @std_args,
343                             "-passout", "pass:password", "-aes128",
344                             "-in", "ec-key-pkcs1.pem",
345                             "-out", "ec-key-pkcs1-aes128.pem"])))
346             # *-key-pkcs8.pem
347             && runall(sub {
348                           my $dstfile = shift;
349                           (my $srcfile = $dstfile)
350                               =~ s/-key-pkcs8\.pem$/-key-pkcs1.pem/i;
351                           run(app(["openssl", "pkcs8", @std_args,
352                                    "-topk8", "-nocrypt",
353                                    "-in", $srcfile, "-out", $dstfile]));
354                       }, grep(/-key-pkcs8\.pem$/, @generated_files))
355             # *-key-pkcs8-pbes1-sha1-3des.pem
356             && runall(sub {
357                           my $dstfile = shift;
358                           (my $srcfile = $dstfile)
359                               =~ s/-key-pkcs8-pbes1-sha1-3des\.pem$
360                                   /-key-pkcs8.pem/ix;
361                           run(app(["openssl", "pkcs8", @std_args,
362                                    "-topk8",
363                                    "-passout", "pass:password",
364                                    "-v1", "pbeWithSHA1And3-KeyTripleDES-CBC",
365                                    "-in", $srcfile, "-out", $dstfile]));
366                       }, grep(/-key-pkcs8-pbes1-sha1-3des\.pem$/, @generated_files))
367             # *-key-pkcs8-pbes1-md5-des.pem
368             && runall(sub {
369                           my $dstfile = shift;
370                           (my $srcfile = $dstfile)
371                               =~ s/-key-pkcs8-pbes1-md5-des\.pem$
372                                   /-key-pkcs8.pem/ix;
373                           run(app(["openssl", "pkcs8", @std_args,
374                                    "-topk8",
375                                    "-passout", "pass:password",
376                                    "-v1", "pbeWithSHA1And3-KeyTripleDES-CBC",
377                                    "-in", $srcfile, "-out", $dstfile]));
378                       }, grep(/-key-pkcs8-pbes1-md5-des\.pem$/, @generated_files))
379             # *-key-pkcs8-pbes2-sha1.pem
380             && runall(sub {
381                           my $dstfile = shift;
382                           (my $srcfile = $dstfile)
383                               =~ s/-key-pkcs8-pbes2-sha1\.pem$
384                                   /-key-pkcs8.pem/ix;
385                           run(app(["openssl", "pkcs8", @std_args,
386                                    "-topk8",
387                                    "-passout", "pass:password",
388                                    "-v2", "aes256", "-v2prf", "hmacWithSHA1",
389                                    "-in", $srcfile, "-out", $dstfile]));
390                       }, grep(/-key-pkcs8-pbes2-sha1\.pem$/, @generated_files))
391             # *-key-pkcs8-pbes2-sha1.pem
392             && runall(sub {
393                           my $dstfile = shift;
394                           (my $srcfile = $dstfile)
395                               =~ s/-key-pkcs8-pbes2-sha256\.pem$
396                                   /-key-pkcs8.pem/ix;
397                           run(app(["openssl", "pkcs8", @std_args,
398                                    "-topk8",
399                                    "-passout", "pass:password",
400                                    "-v2", "aes256", "-v2prf", "hmacWithSHA256",
401                                    "-in", $srcfile, "-out", $dstfile]));
402                       }, grep(/-key-pkcs8-pbes2-sha256\.pem$/, @generated_files))
403             # *-cert.pem (intermediary for the .p12 inits)
404             && run(app(["openssl", "req", "-x509", @std_args,
405                         "-config", $cnf, "-reqexts", "v3_ca", "-noenc",
406                         "-key", $cakey, "-out", "cacert.pem"]))
407             && runall(sub {
408                           my $srckey = shift;
409                           (my $dstfile = $srckey) =~ s|-key-pkcs8\.|-cert.|;
410                           (my $csr = $dstfile) =~ s|\.pem|.csr|;
411
412                           (run(app(["openssl", "req", "-new", @std_args,
413                                     "-config", $cnf, "-section", "userreq",
414                                     "-key", $srckey, "-out", $csr]))
415                            &&
416                            run(app(["openssl", "x509", @std_args,
417                                     "-days", "3650",
418                                     "-CA", "cacert.pem",
419                                     "-CAkey", $cakey,
420                                     "-set_serial", time(), "-req",
421                                     "-in", $csr, "-out", $dstfile])));
422                       }, grep(/-key-pkcs8\.pem$/, @generated_files))
423             # *.p12
424             && runall(sub {
425                           my $dstfile = shift;
426                           my ($type, $certpbe_index, $keypbe_index,
427                               $macalg_index) =
428                               $dstfile =~ m{^(.*)-key-(?|
429                                                 # cert and key PBE are same
430                                                 ()             #
431                                                 ([^-]*-[^-]*)- # key & cert PBE
432                                                 ([^-]*)        # MACalg
433                                             |
434                                                 # cert and key PBE are not same
435                                                 ([^-]*-[^-]*)- # cert PBE
436                                                 ([^-]*-[^-]*)- # key PBE
437                                                 ([^-]*)        # MACalg
438                                             )\.}x;
439                           if (!$certpbe_index) {
440                               $certpbe_index = $keypbe_index;
441                           }
442                           my $srckey = "$type-key-pkcs8.pem";
443                           my $srccert = "$type-cert.pem";
444                           my %pbes =
445                               (
446                                "sha1-3des" => "pbeWithSHA1And3-KeyTripleDES-CBC",
447                                "md5-des" => "pbeWithMD5AndDES-CBC",
448                                "aes256-cbc" => "AES-256-CBC",
449                               );
450                           my %macalgs =
451                               (
452                                "sha1" => "SHA1",
453                                "sha256" => "SHA256",
454                               );
455                           my $certpbe = $pbes{$certpbe_index};
456                           my $keypbe = $pbes{$keypbe_index};
457                           my $macalg = $macalgs{$macalg_index};
458                           if (!defined($certpbe) || !defined($keypbe)
459                               || !defined($macalg)) {
460                               print STDERR "Cert PBE for $certpbe_index not defined\n"
461                                   unless defined $certpbe;
462                               print STDERR "Key PBE for $keypbe_index not defined\n"
463                                   unless defined $keypbe;
464                               print STDERR "MACALG for $macalg_index not defined\n"
465                                   unless defined $macalg;
466                               print STDERR "(destination file was $dstfile)\n";
467                               return 0;
468                           }
469                           run(app(["openssl", "pkcs12", @std_args,
470                                    "-inkey", $srckey,
471                                    "-in", $srccert, "-passout", "pass:password",
472                                    "-chain", "-CAfile", "cacert.pem",
473                                    "-export", "-macalg", $macalg,
474                                    "-certpbe", $certpbe, "-keypbe", $keypbe,
475                                    "-out", $dstfile]));
476                       }, grep(/\.p12/, @generated_files))
477             # *.der (the end all init)
478             && runall(sub {
479                           my $dstfile = shift;
480                           (my $srcfile = $dstfile) =~ s/\.der$/.pem/i;
481                           if (! -f $srcfile) {
482                               $srcfile = srctop_file("test", $srcfile);
483                           }
484                           my $infh;
485                           unless (open $infh, $srcfile) {
486                               return 0;
487                           }
488                           my $l;
489                           while (($l = <$infh>) !~ /^-----BEGIN\s/
490                                  || $l =~ /^-----BEGIN.*PARAMETERS-----/) {
491                           }
492                           my $b64 = "";
493                           while (($l = <$infh>) !~ /^-----END\s/) {
494                               $l =~ s|\R$||;
495                               $b64 .= $l unless $l =~ /:/;
496                           }
497                           close $infh;
498                           my $der = decode_base64($b64);
499                           unless (length($b64) / 4 * 3 - length($der) < 3) {
500                               print STDERR "Length error, ",length($b64),
501                                   " bytes of base64 became ",length($der),
502                                   " bytes of der? ($srcfile => $dstfile)\n";
503                               return 0;
504                           }
505                           my $outfh;
506                           unless (open $outfh, ">:raw", $dstfile) {
507                               return 0;
508                           }
509                           print $outfh $der;
510                           close $outfh;
511                           return 1;
512                       }, grep(/\.der$/, @generated_files))
513             && runall(sub {
514                           my $srcfile = shift;
515                           my $dstfile = $generated_file_files{$srcfile};
516
517                           unless (copy srctop_file($srcfile), $dstfile) {
518                               warn "$!\n";
519                               return 0;
520                           }
521                           return 1;
522                       }, keys %generated_file_files)
523            );
524 }
525
526 sub init_rehash {
527     return (
528             mkdir(catdir(curdir(), 'rehash'))
529             && copy(srctop_file('test', 'testx509.pem'),
530                     catdir(curdir(), 'rehash'))
531             && copy(srctop_file('test', 'testcrl.pem'),
532                     catdir(curdir(), 'rehash'))
533             && run(app(['openssl', 'rehash', catdir(curdir(), 'rehash')]))
534            );
535 }
536
537 sub runall {
538     my ($function, @items) = @_;
539
540     foreach (@items) {
541         return 0 unless $function->($_);
542     }
543     return 1;
544 }
545
546 # According to RFC8089, a relative file: path is invalid.  We still produce
547 # them for testing purposes.
548 sub to_file_uri {
549     my ($file, $isdir, $authority) = @_;
550     my $vol;
551     my $dir;
552
553     die "to_file_uri: No file given\n" if !defined($file) || $file eq '';
554
555     ($vol, $dir, $file) = File::Spec->splitpath($file, $isdir // 0);
556
557     # Make sure we have a Unix style directory.
558     $dir = join('/', File::Spec->splitdir($dir));
559     # Canonicalise it (note: it seems to be only needed on Unix)
560     while (1) {
561         my $newdir = $dir;
562         $newdir =~ s|/[^/]*[^/\.]+[^/]*/\.\./|/|g;
563         last if $newdir eq $dir;
564         $dir = $newdir;
565     }
566     # Take care of the corner cases the loop can't handle, and that $dir
567     # ends with a / unless it's empty
568     $dir =~ s|/[^/]*[^/\.]+[^/]*/\.\.$|/|;
569     $dir =~ s|^[^/]*[^/\.]+[^/]*/\.\./|/|;
570     $dir =~ s|^[^/]*[^/\.]+[^/]*/\.\.$||;
571     if ($isdir // 0) {
572         $dir =~ s|/$|| if $dir ne '/';
573     } else {
574         $dir .= '/' if $dir ne '' && $dir !~ m|/$|;
575     }
576
577     # If the file system has separate volumes (at present, Windows and VMS)
578     # we need to handle them.  In URIs, they are invariably the first
579     # component of the path, which is always absolute.
580     # On VMS, user:[foo.bar] translates to /user/foo/bar
581     # On Windows, c:\Users\Foo translates to /c:/Users/Foo
582     if ($vol ne '') {
583         $vol =~ s|:||g if ($^O eq "VMS");
584         $dir = '/' . $dir if $dir ne '' && $dir !~ m|^/|;
585         $dir = '/' . $vol . $dir;
586     }
587     $file = $dir . $file;
588
589     return "file://$authority$file" if defined $authority;
590     return "file:$file";
591 }
592
593 sub to_abs_file {
594     my ($file) = @_;
595
596     return File::Spec->rel2abs($file);
597 }
598
599 sub to_abs_file_uri {
600     my ($file, $isdir, $authority) = @_;
601
602     die "to_abs_file_uri: No file given\n" if !defined($file) || $file eq '';
603     return to_file_uri(to_abs_file($file), $isdir, $authority);
604 }