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Differences Between: [Versions 310 and 311] [Versions 311 and 402] [Versions 311 and 403] [Versions 39 and 311]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  namespace core;
  18  
  19  use file_archive;
  20  use file_progress;
  21  use zip_archive;
  22  
  23  defined('MOODLE_INTERNAL') || die();
  24  
  25  global $CFG;
  26  require_once($CFG->libdir . '/filestorage/file_progress.php');
  27  
  28  /**
  29   * Unit tests for /lib/filestorage/zip_packer.php and zip_archive.php
  30   *
  31   * @package   core
  32   * @category  test
  33   * @copyright 2012 Petr Skoda
  34   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  class zip_packer_test extends \advanced_testcase implements file_progress {
  37      protected $testfile;
  38      protected $files;
  39  
  40      /**
  41       * @var array Progress information passed to the progress reporter
  42       */
  43      protected $progress;
  44  
  45      protected function setUp(): void {
  46          parent::setUp();
  47  
  48          $this->testfile = __DIR__.'/fixtures/test.txt';
  49  
  50          $fs = get_file_storage();
  51          $context = \context_system::instance();
  52          if (!$file = $fs->get_file($context->id, 'phpunit', 'data', 0, '/', 'test.txt')) {
  53              $file = $fs->create_file_from_pathname(
  54                  array('contextid'=>$context->id, 'component'=>'phpunit', 'filearea'=>'data', 'itemid'=>0, 'filepath'=>'/', 'filename'=>'test.txt'),
  55                  $this->testfile);
  56          }
  57  
  58          $this->files = array(
  59              'test.test' => $this->testfile,
  60              'testíček.txt' => $this->testfile,
  61              'Prüfung.txt' => $this->testfile,
  62              '测试.txt' => $this->testfile,
  63              '試験.txt' => $this->testfile,
  64              'Žluťoučký/Koníček.txt' => $file,
  65          );
  66      }
  67  
  68      public function test_get_packer() {
  69          $this->resetAfterTest(false);
  70          $packer = get_file_packer();
  71          $this->assertInstanceOf('zip_packer', $packer);
  72  
  73          $packer = get_file_packer('application/zip');
  74          $this->assertInstanceOf('zip_packer', $packer);
  75      }
  76  
  77      /**
  78       * @depends test_get_packer
  79       */
  80      public function test_list_files() {
  81          $this->resetAfterTest(false);
  82  
  83          $files = array(
  84              __DIR__.'/fixtures/test_moodle_22.zip',
  85              __DIR__.'/fixtures/test_moodle.zip',
  86              __DIR__.'/fixtures/test_tc_8.zip',
  87              __DIR__.'/fixtures/test_7zip_927.zip',
  88              __DIR__.'/fixtures/test_winzip_165.zip',
  89              __DIR__.'/fixtures/test_winrar_421.zip',
  90              __DIR__.'/fixtures/test_thumbsdb.zip',
  91          );
  92  
  93          if (function_exists('normalizer_normalize')) {
  94              // Unfortunately there is no way to standardise UTF-8 strings without INTL extension.
  95              $files[] = __DIR__.'/fixtures/test_infozip_3.zip';
  96              $files[] = __DIR__.'/fixtures/test_osx_1074.zip';
  97              $files[] = __DIR__.'/fixtures/test_osx_compress.zip';
  98          }
  99  
 100          $packer = get_file_packer('application/zip');
 101  
 102          foreach ($files as $archive) {
 103              $archivefiles = $packer->list_files($archive);
 104              $this->assertTrue(is_array($archivefiles), "Archive not extracted properly: ".basename($archive).' ');
 105              $this->assertTrue(count($this->files) === count($archivefiles) or count($this->files) === count($archivefiles) - 1); // Some zippers create empty dirs.
 106              foreach ($archivefiles as $file) {
 107                  if ($file->pathname === 'Žluťoučký/') {
 108                      // Some zippers create empty dirs.
 109                      continue;
 110                  }
 111                  $this->assertArrayHasKey($file->pathname, $this->files, "File $file->pathname not extracted properly: ".basename($archive).' ');
 112              }
 113          }
 114  
 115          // Windows packer supports only DOS encoding.
 116          $archive = __DIR__.'/fixtures/test_win8_de.zip';
 117          $archivefiles = $packer->list_files($archive);
 118          $this->assertTrue(is_array($archivefiles), "Archive not extracted properly: ".basename($archive).' ');
 119          $this->assertEquals(2, count($archivefiles));
 120          foreach ($archivefiles as $file) {
 121              $this->assertTrue($file->pathname === 'Prüfung.txt' or $file->pathname === 'test.test');
 122          }
 123  
 124          $zip_archive = new zip_archive();
 125          $zip_archive->open(__DIR__.'/fixtures/test_win8_cz.zip', file_archive::OPEN, 'cp852');
 126          $archivefiles = $zip_archive->list_files();
 127          $this->assertTrue(is_array($archivefiles), "Archive not extracted properly: ".basename($archive).' ');
 128          $this->assertEquals(3, count($archivefiles));
 129          foreach ($archivefiles as $file) {
 130              $this->assertTrue($file->pathname === 'Žluťoučký/Koníček.txt' or $file->pathname === 'testíček.txt' or $file->pathname === 'test.test');
 131          }
 132          $zip_archive->close();
 133  
 134          // Empty archive extraction.
 135          $archive = __DIR__.'/fixtures/empty.zip';
 136          $archivefiles = $packer->list_files($archive);
 137          $this->assertSame(array(), $archivefiles);
 138      }
 139  
 140      /**
 141       * @depends test_list_files
 142       */
 143      public function test_archive_to_pathname() {
 144          global $CFG;
 145  
 146          $this->resetAfterTest(false);
 147  
 148          $packer = get_file_packer('application/zip');
 149          $archive = "$CFG->tempdir/archive.zip";
 150  
 151          $this->assertFileDoesNotExist($archive);
 152          $result = $packer->archive_to_pathname($this->files, $archive);
 153          $this->assertTrue($result);
 154          $this->assertFileExists($archive);
 155  
 156          $archivefiles = $packer->list_files($archive);
 157          $this->assertTrue(is_array($archivefiles));
 158          $this->assertEquals(count($this->files), count($archivefiles));
 159          foreach ($archivefiles as $file) {
 160              $this->assertArrayHasKey($file->pathname, $this->files);
 161          }
 162  
 163          // Test invalid files parameter.
 164          $archive = "$CFG->tempdir/archive2.zip";
 165          $this->assertFileDoesNotExist($archive);
 166  
 167          $this->assertFileDoesNotExist(__DIR__.'/xx/yy/ee.txt');
 168          $files = array('xtest.txt'=>__DIR__.'/xx/yy/ee.txt');
 169  
 170          $result = $packer->archive_to_pathname($files, $archive, false);
 171          $this->assertFalse($result);
 172          $this->assertDebuggingCalled();
 173          $this->assertFileDoesNotExist($archive);
 174  
 175          $result = $packer->archive_to_pathname($files, $archive);
 176          $this->assertTrue($result);
 177          $this->assertFileExists($archive);
 178          $this->assertDebuggingCalled();
 179          $archivefiles = $packer->list_files($archive);
 180          $this->assertSame(array(), $archivefiles);
 181          unlink($archive);
 182  
 183          $this->assertFileDoesNotExist(__DIR__.'/xx/yy/ee.txt');
 184          $this->assertFileExists(__DIR__.'/fixtures/test.txt');
 185          $files = array('xtest.txt'=>__DIR__.'/xx/yy/ee.txt', 'test.txt'=>__DIR__.'/fixtures/test.txt', 'ytest.txt'=>__DIR__.'/xx/yy/yy.txt');
 186          $result = $packer->archive_to_pathname($files, $archive);
 187          $this->assertTrue($result);
 188          $this->assertFileExists($archive);
 189          $archivefiles = $packer->list_files($archive);
 190          $this->assertCount(1, $archivefiles);
 191          $this->assertEquals('test.txt', $archivefiles[0]->pathname);
 192          $dms = $this->getDebuggingMessages();
 193          $this->assertCount(2, $dms);
 194          $this->resetDebugging();
 195          unlink($archive);
 196      }
 197  
 198      /**
 199       * @depends test_archive_to_pathname
 200       */
 201      public function test_archive_to_storage() {
 202          $this->resetAfterTest(false);
 203  
 204          $packer = get_file_packer('application/zip');
 205          $fs = get_file_storage();
 206          $context = \context_system::instance();
 207  
 208          $this->assertFalse($fs->file_exists($context->id, 'phpunit', 'test', 0, '/', 'archive.zip'));
 209          $result = $packer->archive_to_storage($this->files, $context->id, 'phpunit', 'test', 0, '/', 'archive.zip');
 210          $this->assertInstanceOf('stored_file', $result);
 211          $this->assertTrue($fs->file_exists($context->id, 'phpunit', 'test', 0, '/', 'archive.zip'));
 212  
 213          $archivefiles = $result->list_files($packer);
 214          $this->assertTrue(is_array($archivefiles));
 215          $this->assertEquals(count($this->files), count($archivefiles));
 216          foreach ($archivefiles as $file) {
 217              $this->assertArrayHasKey($file->pathname, $this->files);
 218          }
 219      }
 220  
 221      /**
 222       * @depends test_archive_to_storage
 223       */
 224      public function test_extract_to_pathname() {
 225          global $CFG;
 226  
 227          $this->resetAfterTest(false);
 228  
 229          $packer = get_file_packer('application/zip');
 230          $fs = get_file_storage();
 231          $context = \context_system::instance();
 232  
 233          $target = "$CFG->tempdir/test/";
 234          $testcontent = file_get_contents($this->testfile);
 235  
 236          @mkdir($target, $CFG->directorypermissions);
 237          $this->assertTrue(is_dir($target));
 238  
 239          $archive = "$CFG->tempdir/archive.zip";
 240          $this->assertFileExists($archive);
 241          $result = $packer->extract_to_pathname($archive, $target);
 242          $this->assertTrue(is_array($result));
 243          $this->assertEquals(count($this->files), count($result));
 244          foreach ($this->files as $file => $unused) {
 245              $this->assertTrue($result[$file]);
 246              $this->assertFileExists($target.$file);
 247              $this->assertSame($testcontent, file_get_contents($target.$file));
 248          }
 249  
 250          $archive = $fs->get_file($context->id, 'phpunit', 'test', 0, '/', 'archive.zip');
 251          $this->assertNotEmpty($archive);
 252          $result = $packer->extract_to_pathname($archive, $target);
 253          $this->assertTrue(is_array($result));
 254          $this->assertEquals(count($this->files), count($result));
 255          foreach ($this->files as $file => $unused) {
 256              $this->assertTrue($result[$file]);
 257              $this->assertFileExists($target.$file);
 258              $this->assertSame($testcontent, file_get_contents($target.$file));
 259          }
 260      }
 261  
 262      /**
 263       * Test functionality of {@see zip_packer} for entries with folders ending with dots.
 264       *
 265       * @link https://bugs.php.net/bug.php?id=77214
 266       */
 267      public function test_zip_entry_path_having_folder_ending_with_dot() {
 268          global $CFG;
 269  
 270          $this->resetAfterTest(false);
 271  
 272          $packer = get_file_packer('application/zip');
 273          $tmp = make_request_directory();
 274          $now = time();
 275  
 276          // Create a test archive containing a folder ending with dot.
 277          $zippath = $tmp . '/test_archive.zip';
 278          $zipcontents = [
 279              'HOW.TO' => ['Just run tests.'],
 280              'README.' => ['This is a test ZIP file'],
 281              './Current time' => [$now],
 282              'Data/sub1./sub2/1221' => ['1221'],
 283              'Data/sub1./sub2./Příliš žluťoučký kůň úpěl Ďábelské Ódy.txt' => [''],
 284          ];
 285  
 286          if ($CFG->ostype === 'WINDOWS') {
 287              // File names cannot end with dots on Windows and trailing dots are replaced with underscore.
 288              $filenamemap = [
 289                  'HOW.TO' => 'HOW.TO',
 290                  'README.' => 'README_',
 291                  './Current time' => 'Current time',
 292                  'Data/sub1./sub2/1221' => 'Data/sub1_/sub2/1221',
 293                  'Data/sub1./sub2./Příliš žluťoučký kůň úpěl Ďábelské Ódy.txt' =>
 294                      'Data/sub1_/sub2_/Příliš žluťoučký kůň úpěl Ďábelské Ódy.txt',
 295              ];
 296  
 297          } else {
 298              $filenamemap = [
 299                  'HOW.TO' => 'HOW.TO',
 300                  'README.' => 'README.',
 301                  './Current time' => 'Current time',
 302                  'Data/sub1./sub2/1221' => 'Data/sub1./sub2/1221',
 303                  'Data/sub1./sub2./Příliš žluťoučký kůň úpěl Ďábelské Ódy.txt' =>
 304                      'Data/sub1./sub2./Příliš žluťoučký kůň úpěl Ďábelské Ódy.txt',
 305              ];
 306          }
 307  
 308          // Check that the archive can be created.
 309          $result = $packer->archive_to_pathname($zipcontents, $zippath, false);
 310          $this->assertTrue($result);
 311  
 312          // Check list of files.
 313          $listfiles = $packer->list_files($zippath);
 314          $this->assertEquals(count($zipcontents), count($listfiles));
 315  
 316          foreach ($listfiles as $fileinfo) {
 317              $this->assertSame($fileinfo->pathname, $fileinfo->original_pathname);
 318              $this->assertArrayHasKey($fileinfo->pathname, $zipcontents);
 319          }
 320  
 321          // Check actual extracting.
 322          $targetpath = $tmp . '/target';
 323          check_dir_exists($targetpath);
 324          $result = $packer->extract_to_pathname($zippath, $targetpath, null, null, true);
 325  
 326          $this->assertTrue($result);
 327  
 328          foreach ($zipcontents as $filename => $filecontents) {
 329              $filecontents = reset($filecontents);
 330              $this->assertTrue(is_readable($targetpath . '/' . $filenamemap[$filename]));
 331              $this->assertEquals($filecontents, file_get_contents($targetpath . '/' . $filenamemap[$filename]));
 332          }
 333      }
 334  
 335      /**
 336       * @depends test_archive_to_storage
 337       */
 338      public function test_extract_to_pathname_onlyfiles() {
 339          global $CFG;
 340  
 341          $this->resetAfterTest(false);
 342  
 343          $packer = get_file_packer('application/zip');
 344          $fs = get_file_storage();
 345          $context = \context_system::instance();
 346  
 347          $target = "$CFG->tempdir/onlyfiles/";
 348          $testcontent = file_get_contents($this->testfile);
 349  
 350          @mkdir($target, $CFG->directorypermissions);
 351          $this->assertTrue(is_dir($target));
 352  
 353          $onlyfiles = array('test', 'test.test', 'Žluťoučký/Koníček.txt', 'Idontexist');
 354          $willbeextracted = array_intersect(array_keys($this->files), $onlyfiles);
 355          $donotextract = array_diff(array_keys($this->files), $onlyfiles);
 356  
 357          $archive = "$CFG->tempdir/archive.zip";
 358          $this->assertFileExists($archive);
 359          $result = $packer->extract_to_pathname($archive, $target, $onlyfiles);
 360          $this->assertTrue(is_array($result));
 361          $this->assertEquals(count($willbeextracted), count($result));
 362  
 363          foreach ($willbeextracted as $file) {
 364              $this->assertTrue($result[$file]);
 365              $this->assertFileExists($target.$file);
 366              $this->assertSame($testcontent, file_get_contents($target.$file));
 367          }
 368          foreach ($donotextract as $file) {
 369              $this->assertFalse(isset($result[$file]));
 370              $this->assertFileDoesNotExist($target.$file);
 371          }
 372  
 373      }
 374  
 375      /**
 376       * @depends test_archive_to_storage
 377       */
 378      public function test_extract_to_pathname_returnvalue_successful() {
 379          global $CFG;
 380  
 381          $this->resetAfterTest(false);
 382  
 383          $packer = get_file_packer('application/zip');
 384  
 385          $target = make_request_directory();
 386  
 387          $archive = "$CFG->tempdir/archive.zip";
 388          $this->assertFileExists($archive);
 389          $result = $packer->extract_to_pathname($archive, $target, null, null, true);
 390          $this->assertTrue($result);
 391      }
 392  
 393      /**
 394       * @depends test_archive_to_storage
 395       */
 396      public function test_extract_to_pathname_returnvalue_failure() {
 397          global $CFG;
 398  
 399          $this->resetAfterTest(false);
 400  
 401          $packer = get_file_packer('application/zip');
 402  
 403          $target = make_request_directory();
 404  
 405          $archive = "$CFG->tempdir/noarchive.zip";
 406          $result = $packer->extract_to_pathname($archive, $target, null, null, true);
 407          $this->assertFalse($result);
 408      }
 409  
 410      /**
 411       * @depends test_archive_to_storage
 412       */
 413      public function test_extract_to_storage() {
 414          global $CFG;
 415  
 416          $this->resetAfterTest(false);
 417  
 418          $packer = get_file_packer('application/zip');
 419          $fs = get_file_storage();
 420          $context = \context_system::instance();
 421  
 422          $testcontent = file_get_contents($this->testfile);
 423  
 424          $archive = $fs->get_file($context->id, 'phpunit', 'test', 0, '/', 'archive.zip');
 425          $this->assertNotEmpty($archive);
 426          $result = $packer->extract_to_storage($archive, $context->id, 'phpunit', 'target', 0, '/');
 427          $this->assertTrue(is_array($result));
 428          $this->assertEquals(count($this->files), count($result));
 429          foreach ($this->files as $file => $unused) {
 430              $this->assertTrue($result[$file]);
 431              $stored_file = $fs->get_file_by_hash(sha1("/$context->id/phpunit/target/0/$file"));
 432              $this->assertInstanceOf('stored_file', $stored_file);
 433              $this->assertSame($testcontent, $stored_file->get_content());
 434          }
 435  
 436          $archive = "$CFG->tempdir/archive.zip";
 437          $this->assertFileExists($archive);
 438          $result = $packer->extract_to_storage($archive, $context->id, 'phpunit', 'target', 0, '/');
 439          $this->assertTrue(is_array($result));
 440          $this->assertEquals(count($this->files), count($result));
 441          foreach ($this->files as $file => $unused) {
 442              $this->assertTrue($result[$file]);
 443              $stored_file = $fs->get_file_by_hash(sha1("/$context->id/phpunit/target/0/$file"));
 444              $this->assertInstanceOf('stored_file', $stored_file);
 445              $this->assertSame($testcontent, $stored_file->get_content());
 446          }
 447          unlink($archive);
 448      }
 449  
 450      /**
 451       * @depends test_extract_to_storage
 452       */
 453      public function test_add_files() {
 454          global $CFG;
 455  
 456          $this->resetAfterTest(false);
 457  
 458          $packer = get_file_packer('application/zip');
 459          $archive = "$CFG->tempdir/archive.zip";
 460  
 461          $this->assertFileDoesNotExist($archive);
 462          $packer->archive_to_pathname(array(), $archive);
 463          $this->assertFileExists($archive);
 464  
 465          $zip_archive = new zip_archive();
 466          $zip_archive->open($archive, file_archive::OPEN);
 467          $this->assertEquals(0, $zip_archive->count());
 468  
 469          $zip_archive->add_file_from_string('test.txt', 'test');
 470          $zip_archive->close();
 471          $zip_archive->open($archive, file_archive::OPEN);
 472          $this->assertEquals(1, $zip_archive->count());
 473  
 474          $zip_archive->add_directory('test2');
 475          $zip_archive->close();
 476          $zip_archive->open($archive, file_archive::OPEN);
 477          $files = $zip_archive->list_files();
 478          $this->assertCount(2, $files);
 479          $this->assertEquals('test.txt', $files[0]->pathname);
 480          $this->assertEquals('test2/', $files[1]->pathname);
 481  
 482          $result = $zip_archive->add_file_from_pathname('test.txt', __DIR__.'/nonexistent/file.txt');
 483          $this->assertFalse($result);
 484          $zip_archive->close();
 485          $zip_archive->open($archive, file_archive::OPEN);
 486          $this->assertEquals(2, $zip_archive->count());
 487          $zip_archive->close();
 488  
 489          unlink($archive);
 490      }
 491  
 492      public function test_close_archive() {
 493          global $CFG;
 494  
 495          $this->resetAfterTest(true);
 496  
 497          $archive = "$CFG->tempdir/archive.zip";
 498          $textfile = "$CFG->tempdir/textfile.txt";
 499          touch($textfile);
 500  
 501          $this->assertFileDoesNotExist($archive);
 502          $this->assertFileExists($textfile);
 503  
 504          // Create archive and close it without files.
 505          // (returns true, without any warning).
 506          $zip_archive = new zip_archive();
 507          $result = $zip_archive->open($archive, file_archive::CREATE);
 508          $this->assertTrue($result);
 509          $result = $zip_archive->close();
 510          $this->assertTrue($result);
 511          unlink($archive);
 512  
 513          // Create archive and close it with files.
 514          // (returns true, without any warning).
 515          $zip_archive = new zip_archive();
 516          $result = $zip_archive->open($archive, file_archive::CREATE);
 517          $this->assertTrue($result);
 518          $result = $zip_archive->add_file_from_string('test.txt', 'test');
 519          $this->assertTrue($result);
 520          $result = $zip_archive->add_file_from_pathname('test2.txt', $textfile);
 521          $result = $zip_archive->close();
 522          $this->assertTrue($result);
 523          unlink($archive);
 524  
 525          // Create archive and close if forcing error.
 526          // (returns true for old PHP versions and
 527          // false with warnings for new PHP versions). MDL-51863.
 528          $zip_archive = new zip_archive();
 529          $result = $zip_archive->open($archive, file_archive::CREATE);
 530          $this->assertTrue($result);
 531          $result = $zip_archive->add_file_from_string('test.txt', 'test');
 532          $this->assertTrue($result);
 533          $result = $zip_archive->add_file_from_pathname('test2.txt', $textfile);
 534          $this->assertTrue($result);
 535          // Delete the file before closing does force close() to fail.
 536          unlink($textfile);
 537          // Behavior is different between old PHP versions and new ones. Let's detect it.
 538          $result = false;
 539          try {
 540              // Old PHP versions were not printing any warning.
 541              $result = $zip_archive->close();
 542          } catch (\Exception $e) {
 543              // New PHP versions print PHP Warning.
 544              $this->assertInstanceOf('PHPUnit\Framework\Error\Warning', $e);
 545              $this->assertStringContainsString('ZipArchive::close', $e->getMessage());
 546          }
 547          // This is crazy, but it shows how some PHP versions do return true.
 548          try {
 549              // And some PHP versions do return correctly false (5.4.25, 5.6.14...)
 550              $this->assertFalse($result);
 551          } catch (\Exception $e) {
 552              // But others do insist into returning true (5.6.13...). Only can accept them.
 553              $this->assertInstanceOf('PHPUnit\Framework\ExpectationFailedException', $e);
 554              $this->assertTrue($result);
 555          }
 556          $this->assertFileDoesNotExist($archive);
 557      }
 558  
 559      /**
 560       * @depends test_add_files
 561       */
 562      public function test_open_archive() {
 563          global $CFG;
 564  
 565          $this->resetAfterTest(true);
 566  
 567          $archive = "$CFG->tempdir/archive.zip";
 568  
 569          $this->assertFileDoesNotExist($archive);
 570  
 571          $zip_archive = new zip_archive();
 572          $result = $zip_archive->open($archive, file_archive::OPEN);
 573          $this->assertFalse($result);
 574          $this->assertDebuggingCalled();
 575  
 576          $zip_archive = new zip_archive();
 577          $result = $zip_archive->open($archive, file_archive::CREATE);
 578          $this->assertTrue($result);
 579          $zip_archive->add_file_from_string('test.txt', 'test');
 580          $zip_archive->close();
 581          $zip_archive->open($archive, file_archive::OPEN);
 582          $this->assertEquals(1, $zip_archive->count());
 583  
 584          $zip_archive = new zip_archive();
 585          $result = $zip_archive->open($archive, file_archive::OVERWRITE);
 586          $this->assertTrue($result);
 587          $zip_archive->add_file_from_string('test2.txt', 'test');
 588          $zip_archive->close();
 589          $zip_archive->open($archive, file_archive::OPEN);
 590          $this->assertEquals(1, $zip_archive->count());
 591          $zip_archive->close();
 592  
 593          unlink($archive);
 594          $zip_archive = new zip_archive();
 595          $result = $zip_archive->open($archive, file_archive::OVERWRITE);
 596          $this->assertTrue($result);
 597          $zip_archive->add_file_from_string('test2.txt', 'test');
 598          $zip_archive->close();
 599          $zip_archive->open($archive, file_archive::OPEN);
 600          $this->assertEquals(1, $zip_archive->count());
 601          $zip_archive->close();
 602  
 603          unlink($archive);
 604      }
 605  
 606      /**
 607       * Test opening an encrypted archive
 608       */
 609      public function test_open_encrypted_archive() {
 610          $this->resetAfterTest();
 611  
 612          // The archive contains a single encrypted "hello.txt" file.
 613          $archive = __DIR__ . '/fixtures/passwordis1.zip';
 614  
 615          /** @var zip_packer $packer */
 616          $packer = get_file_packer('application/zip');
 617          $result = $packer->extract_to_pathname($archive, make_temp_directory('zip'));
 618  
 619          $this->assertIsArray($result);
 620          $this->assertArrayHasKey('hello.txt', $result);
 621          $this->assertEquals('Can not read file from zip archive', $result['hello.txt']);
 622      }
 623  
 624      /**
 625       * Tests the progress reporting.
 626       */
 627      public function test_file_progress() {
 628          global $CFG;
 629  
 630          // Set up.
 631          $this->resetAfterTest(true);
 632          $packer = get_file_packer('application/zip');
 633          $archive = "$CFG->tempdir/archive.zip";
 634          $context = \context_system::instance();
 635  
 636          // Archive to pathname.
 637          $this->progress = array();
 638          $result = $packer->archive_to_pathname($this->files, $archive, true, $this);
 639          $this->assertTrue($result);
 640          // Should send progress at least once per file.
 641          $this->assertTrue(count($this->progress) >= count($this->files));
 642          // Each progress will be indeterminate.
 643          $this->assertEquals(
 644                  array(file_progress::INDETERMINATE, file_progress::INDETERMINATE),
 645                  $this->progress[0]);
 646  
 647          // Archive to pathname using entire folder and subfolder instead of file list.
 648          unlink($archive);
 649          $folder = make_temp_directory('zip_packer_progress');
 650          file_put_contents($folder . '/test1.txt', 'hello');
 651          $subfolder = $folder . '/sub';
 652          check_dir_exists($subfolder);
 653          file_put_contents($subfolder . '/test2.txt', 'world');
 654          file_put_contents($subfolder . '/test3.txt', 'and');
 655          file_put_contents($subfolder . '/test4.txt', 'other');
 656          file_put_contents($subfolder . '/test5.txt', 'worlds');
 657          $this->progress = array();
 658          $result = $packer->archive_to_pathname(array('' => $folder), $archive, true, $this);
 659          $this->assertTrue($result);
 660          // Should send progress at least once per file.
 661          $this->assertTrue(count($this->progress) >= 5);
 662  
 663          // Archive to storage.
 664          $this->progress = array();
 665          $archivefile = $packer->archive_to_storage($this->files, $context->id,
 666                  'phpunit', 'test', 0, '/', 'archive.zip', null, true, $this);
 667          $this->assertInstanceOf('stored_file', $archivefile);
 668          $this->assertTrue(count($this->progress) >= count($this->files));
 669          $this->assertEquals(
 670                  array(file_progress::INDETERMINATE, file_progress::INDETERMINATE),
 671                  $this->progress[0]);
 672  
 673          // Extract to pathname.
 674          $this->progress = array();
 675          $target = "$CFG->tempdir/test/";
 676          check_dir_exists($target);
 677          $result = $packer->extract_to_pathname($archive, $target, null, $this);
 678          remove_dir($target);
 679          $this->assertEquals(count($this->files), count($result));
 680          $this->assertTrue(count($this->progress) >= count($this->files));
 681          $this->check_progress_toward_max();
 682  
 683          // Extract to storage (from storage).
 684          $this->progress = array();
 685          $result = $packer->extract_to_storage($archivefile, $context->id,
 686                  'phpunit', 'target', 0, '/', null, $this);
 687          $this->assertEquals(count($this->files), count($result));
 688          $this->assertTrue(count($this->progress) >= count($this->files));
 689          $this->check_progress_toward_max();
 690  
 691          // Extract to storage (from path).
 692          $this->progress = array();
 693          $result = $packer->extract_to_storage($archive, $context->id,
 694                  'phpunit', 'target', 0, '/', null, $this);
 695          $this->assertEquals(count($this->files), count($result));
 696          $this->assertTrue(count($this->progress) >= count($this->files));
 697          $this->check_progress_toward_max();
 698  
 699          // Wipe created disk file.
 700          unlink($archive);
 701      }
 702  
 703      /**
 704       * Checks that progress reported is numeric rather than indeterminate,
 705       * and follows the progress reporting rules.
 706       */
 707      private function check_progress_toward_max() {
 708          $lastvalue = -1;
 709          foreach ($this->progress as $progressitem) {
 710              list($value, $max) = $progressitem;
 711              $this->assertNotEquals(file_progress::INDETERMINATE, $max);
 712              $this->assertTrue($value <= $max);
 713              $this->assertTrue($value >= $lastvalue);
 714              $lastvalue = $value;
 715          }
 716      }
 717  
 718      /**
 719       * Handles file_progress interface.
 720       *
 721       * @param int $progress
 722       * @param int $max
 723       */
 724      public function progress($progress = file_progress::INDETERMINATE, $max = file_progress::INDETERMINATE) {
 725          $this->progress[] = array($progress, $max);
 726      }
 727  }