xref: /freebsd/crypto/openssl/test/recipes/90-test_store.t (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
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
9use File::Spec::Functions;
10use File::Copy;
11use MIME::Base64;
12use OpenSSL::Test qw(:DEFAULT srctop_file srctop_dir bldtop_file bldtop_dir
13                     data_file);
14use OpenSSL::Test::Utils;
15
16my $test_name = "test_store";
17setup($test_name);
18
19my $use_md5 = !disabled("md5");
20my $use_des = !(disabled("des") || disabled("legacy")); # also affects 3des and pkcs12 app
21my $use_dsa = !disabled("dsa");
22my $use_ecc = !disabled("ec");
23
24my @noexist_files =
25    ( "test/blahdiblah.pem",
26      "test/blahdibleh.der" );
27my @src_files =
28    ( "test/testx509.pem",
29      "test/testrsa.pem",
30      "test/testrsapub.pem",
31      "test/testcrl.pem",
32      "apps/server.pem" );
33my @data_files =
34    ( "testrsa.msb" );
35push(@data_files,
36     ( "testrsa.pvk" ))
37    unless disabled("legacy") || disabled("rc4");
38my @src_rsa_files =
39    ( "test/testrsa.pem",
40      "test/testrsapub.pem" );
41my @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    );
58push(@generated_files, (
59     "rsa-key-pkcs8-pbes1-sha1-3des.pem", "rsa-key-pkcs8-pbes1-sha1-3des.der",
60    )) if $use_des;
61push(@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;
67push(@generated_files, (
68     "rsa-key-pkcs8-pbes1-md5-des.pem", "rsa-key-pkcs8-pbes1-md5-des.der"
69     )) if $use_md5 && $use_des;
70push(@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;
76push(@generated_files, "dsa-key-aes256-cbc-sha256.p12") if $use_dsa && $use_des;
77push(@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;
83push(@generated_files, "ec-key-aes256-cbc-sha256.p12") if $use_ecc && $use_des;
84my %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    : ();
92my @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.
102my @methods;
103my @prov_method = qw(-provider default);
104push @prov_method, qw(-provider legacy) unless disabled('legacy');
105push @methods, [ @prov_method ];
106push @methods, [qw(-engine loader_attic)]
107    unless disabled('loadereng');
108
109my $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
121my $do_test_ossltest_store =
122    !(disabled("engine") || disabled("dynamic-engine") || $^O =~ /^msys$/);
123
124if ($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
130plan skip_all => "No plan" if $n == 0;
131
132plan tests => $n;
133
134indir "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
307sub 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, "-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
526sub 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
537sub 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.
548sub 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
593sub to_abs_file {
594    my ($file) = @_;
595
596    return File::Spec->rel2abs($file);
597}
598
599sub 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}
605