Tests image_style_url().
function _testImageStyleUrlAndPath($scheme, $clean_url = TRUE, $extra_slash = FALSE) {
$request = $this
->prepareRequestForGenerator($clean_url);
// Make the default scheme neither "public" nor "private" to verify the
// functions work for other than the default scheme.
config('system.file')
->set('default_scheme', 'temporary')
->save();
// Create the directories for the styles.
$directory = $scheme . '://styles/' . $this->style_name;
$status = file_prepare_directory($directory, FILE_CREATE_DIRECTORY);
$this
->assertNotIdentical(FALSE, $status, 'Created the directory for the generated images for the test style.');
// Create a working copy of the file.
$files = $this
->drupalGetTestFiles('image');
$file = array_shift($files);
$image_info = image_get_info($file->uri);
$original_uri = file_unmanaged_copy($file->uri, $scheme . '://', FILE_EXISTS_RENAME);
// Let the image_module_test module know about this file, so it can claim
// ownership in hook_file_download().
\Drupal::state()
->set('image.test_file_download', $original_uri);
$this
->assertNotIdentical(FALSE, $original_uri, 'Created the generated image file.');
// Get the URL of a file that has not been generated and try to create it.
$generated_uri = image_style_path($this->style_name, $original_uri);
$this
->assertFalse(file_exists($generated_uri), 'Generated file does not exist.');
$generate_url = image_style_url($this->style_name, $original_uri, $clean_url);
// Ensure that the tests still pass when the file is generated by accessing
// a poorly constructed (but still valid) file URL that has an extra slash
// in it.
if ($extra_slash) {
$modified_uri = str_replace('://', ':///', $original_uri);
$this
->assertNotEqual($original_uri, $modified_uri, 'An extra slash was added to the generated file URI.');
$generate_url = image_style_url($this->style_name, $modified_uri, $clean_url);
}
if (!$clean_url) {
$this
->assertTrue(strpos($generate_url, 'index.php/') !== FALSE, 'When using non-clean URLS, the system path contains the script name.');
}
// Add some extra chars to the token.
$this
->drupalGet(str_replace(IMAGE_DERIVATIVE_TOKEN . '=', IMAGE_DERIVATIVE_TOKEN . '=Zo', $generate_url));
$this
->assertResponse(403, 'Image was inaccessible at the URL wih an invalid token.');
// Change the parameter name so the token is missing.
$this
->drupalGet(str_replace(IMAGE_DERIVATIVE_TOKEN . '=', 'wrongparam=', $generate_url));
$this
->assertResponse(403, 'Image was inaccessible at the URL wih a missing token.');
// Fetch the URL that generates the file.
$this
->drupalGet($generate_url);
$this
->assertResponse(200, 'Image was generated at the URL.');
$this
->assertTrue(file_exists($generated_uri), 'Generated file does exist after we accessed it.');
$this
->assertRaw(file_get_contents($generated_uri), 'URL returns expected file.');
$generated_image_info = image_get_info($generated_uri);
$this
->assertEqual($this
->drupalGetHeader('Content-Type'), $generated_image_info['mime_type'], 'Expected Content-Type was reported.');
$this
->assertEqual($this
->drupalGetHeader('Content-Length'), $generated_image_info['file_size'], 'Expected Content-Length was reported.');
if ($scheme == 'private') {
$this
->assertEqual($this
->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
$this
->assertNotEqual(strpos($this
->drupalGetHeader('Cache-Control'), 'no-cache'), FALSE, 'Cache-Control header contains \'no-cache\' to prevent caching.');
$this
->assertEqual($this
->drupalGetHeader('X-Image-Owned-By'), 'image_module_test', 'Expected custom header has been added.');
// Make sure that a second request to the already existing derivate works
// too.
$this
->drupalGet($generate_url);
$this
->assertResponse(200, 'Image was generated at the URL.');
// Make sure that access is denied for existing style files if we do not
// have access.
\Drupal::state()
->delete('image.test_file_download');
$this
->drupalGet($generate_url);
$this
->assertResponse(403, 'Confirmed that access is denied for the private image style.');
// Repeat this with a different file that we do not have access to and
// make sure that access is denied.
$file_noaccess = array_shift($files);
$original_uri_noaccess = file_unmanaged_copy($file_noaccess->uri, $scheme . '://', FILE_EXISTS_RENAME);
$generated_uri_noaccess = $scheme . '://styles/' . $this->style_name . '/' . $scheme . '/' . drupal_basename($original_uri_noaccess);
$this
->assertFalse(file_exists($generated_uri_noaccess), 'Generated file does not exist.');
$generate_url_noaccess = image_style_url($this->style_name, $original_uri_noaccess);
$this
->drupalGet($generate_url_noaccess);
$this
->assertResponse(403, 'Confirmed that access is denied for the private image style.');
// Verify that images are not appended to the response. Currently this test only uses PNG images.
if (strpos($generate_url, '.png') === FALSE) {
$this
->fail('Confirming that private image styles are not appended require PNG file.');
}
else {
// Check for PNG-Signature (cf. http://www.libpng.org/pub/png/book/chapter08.html#png.ch08.div.2) in the
// response body.
$this
->assertNoRaw(chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10), 'No PNG signature found in the response body.');
}
}
elseif ($clean_url) {
// Add some extra chars to the token.
$this
->drupalGet(str_replace(IMAGE_DERIVATIVE_TOKEN . '=', IMAGE_DERIVATIVE_TOKEN . '=Zo', $generate_url));
$this
->assertResponse(200, 'Existing image was accessible at the URL wih an invalid token.');
}
// Allow insecure image derivatives to be created for the remainder of this
// test.
config('image.settings')
->set('allow_insecure_derivatives', TRUE)
->save();
// Create another working copy of the file.
$files = $this
->drupalGetTestFiles('image');
$file = array_shift($files);
$image_info = image_get_info($file->uri);
$original_uri = file_unmanaged_copy($file->uri, $scheme . '://', FILE_EXISTS_RENAME);
// Let the image_module_test module know about this file, so it can claim
// ownership in hook_file_download().
\Drupal::state()
->set('image.test_file_download', $original_uri);
// Suppress the security token in the URL, then get the URL of a file that
// has not been created and try to create it. Check that the security token
// is not present in the URL but that the image is still accessible.
config('image.settings')
->set('suppress_itok_output', TRUE)
->save();
$generated_uri = image_style_path($this->style_name, $original_uri);
$this
->assertFalse(file_exists($generated_uri), 'Generated file does not exist.');
$generate_url = image_style_url($this->style_name, $original_uri, $clean_url);
$this
->assertIdentical(strpos($generate_url, IMAGE_DERIVATIVE_TOKEN . '='), FALSE, 'The security token does not appear in the image style URL.');
$this
->drupalGet($generate_url);
$this
->assertResponse(200, 'Image was accessible at the URL with a missing token.');
}