function FileSaveUploadTest::testHandleDangerousFile

Test dangerous file handling.

File

core/modules/simpletest/tests/file.test, line 710

This provides SimpleTests for the core file handling functionality. These include FileValidateTest and FileSaveTest.

Class

FileSaveUploadTest

Test the file_save_upload() function.

Code

function testHandleDangerousFile() {
  // Allow the .php extension and make sure it gets munged and given a .txt
  // extension for safety. Also check to make sure its MIME type was changed.
  $edit = array(
    'file_test_replace' => FILE_EXISTS_REPLACE,
    'files[file_test_upload]' => backdrop_realpath($this->php_file->uri),
    'is_image_file' => FALSE,
    'extensions' => 'php',
  );

  $this->backdropPost('file-test/upload', $edit, t('Submit'));
  $this->assertResponse(200, 'Received a 200 response for posted test file.');
  $message = t('For security reasons, your upload has been renamed to') . ' <em class="placeholder">' . $this->php_file->filename . '_.txt</em>';
  $this->assertRaw($message, 'Dangerous file was renamed.');
  $this->assertRaw(t('File MIME type is text/plain.'), "Dangerous file's MIME type was changed.");
  $this->assertRaw(t('You WIN!'), 'Found the success message.');

  // Check that the correct hooks were called.
  $this->assertFileHooksCalled(array('validate', 'insert'));

  // Ensure dangerous files are not renamed when insecure uploads is TRUE.
  // Turn on insecure uploads.
  tempstore_set('simpletest', 'settings', array(
    'allow_insecure_uploads' => 1,
  ), REQUEST_TIME + 3600);

  // Reset the hook counters.
  file_test_reset();

  $this->backdropPost('file-test/upload', $edit, t('Submit'));
  $this->assertResponse(200, 'Received a 200 response for posted test file.');
  $this->assertNoRaw(t('For security reasons, your upload has been renamed'), 'Found no security message.');
  $this->assertRaw(t('File name is !filename', array('!filename' => $this->php_file->filename)), 'Dangerous file was not renamed when insecure uploads is TRUE.');
  $this->assertRaw(t('You WIN!'), 'Found the success message.');

  // Check that the correct hooks were called.
  $this->assertFileHooksCalled(array('validate', 'insert'));

  // Reset the hook counters.
  file_test_reset();

  // Even with insecure uploads allowed, the .php file should not be uploaded
  // if it is not explicitly included in the list of allowed extensions.
  $edit['extensions'] = 'foo';
  $this->backdropPost('file-test/upload', $edit, t('Submit'));
  $this->assertResponse(200, 'Received a 200 response for posted test file.');
  $message = t('Only files with the following extensions are allowed:') . ' <em class="placeholder">' . $edit['extensions'] . '</em>';
  $this->assertRaw($message, 'Cannot upload a disallowed extension');
  $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');

  // Check that the correct hooks were called.
  $this->assertFileHooksCalled(array('validate'));

  // Reset the hook counters.
  file_test_reset();

  // Turn off insecure uploads, then try the same thing as above (ensure that
  // the .php file is still rejected since it's not in the list of allowed
  // extensions).
  tempstore_clear('simpletest', 'settings');
  $this->backdropPost('file-test/upload', $edit, t('Submit'));
  $this->assertResponse(200, 'Received a 200 response for posted test file.');
  $message = t('Only files with the following extensions are allowed:') . ' <em class="placeholder">' . $edit['extensions'] . '</em>';
  $this->assertRaw($message, 'Cannot upload a disallowed extension');
  $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');

  // Check that the correct hooks were called.
  $this->assertFileHooksCalled(array('validate'));

  // Reset the hook counters.
  file_test_reset();

}