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<?php
namespace Drupal\file\Tests;
/**
* Tests for download/file transfer functions.
*
* @group file
*/
class DownloadTest extends FileManagedTestBase {
protected function setUp() {
parent::setUp();
// Clear out any hook calls.
file_test_reset();
}
/**
* Test the public file transfer system.
*/
public function testPublicFileTransfer() {
// Test generating a URL to a created file.
$file = $this->createFile();
$url = file_create_url($file->getFileUri());
// URLs can't contain characters outside the ASCII set so $filename has to be
// encoded.
$filename = $GLOBALS['base_url'] . '/' . \Drupal::service('stream_wrapper_manager')->getViaScheme('public')->getDirectoryPath() . '/' . rawurlencode($file->getFilename());
$this->assertEqual($filename, $url, 'Correctly generated a URL for a created file.');
$this->drupalHead($url);
$this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the created file.');
// Test generating a URL to a shipped file (i.e. a file that is part of
// Drupal core, a module or a theme, for example a JavaScript file).
$filepath = 'core/assets/vendor/jquery/jquery.min.js';
$url = file_create_url($filepath);
$this->assertEqual($GLOBALS['base_url'] . '/' . $filepath, $url, 'Correctly generated a URL for a shipped file.');
$this->drupalHead($url);
$this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
}
/**
* Test the private file transfer system.
*/
public function testPrivateFileTransferWithoutPageCache() {
$this->doPrivateFileTransferTest();
}
/**
* Test the private file transfer system.
*/
protected function doPrivateFileTransferTest() {
// Set file downloads to private so handler functions get called.
// Create a file.
$contents = $this->randomMachineName(8);
$file = $this->createFile(NULL, $contents, 'private');
// Created private files without usage are by default not accessible
// for a user different from the owner, but createFile always uses uid 1
// as the owner of the files. Therefore make it permanent to allow access
// if a module allows it.
$file->setPermanent();
$file->save();
$url = file_create_url($file->getFileUri());
// Set file_test access header to allow the download.
file_test_set_return('download', ['x-foo' => 'Bar']);
$this->drupalGet($url);
$this->assertEqual($this->drupalGetHeader('x-foo'), 'Bar', 'Found header set by file_test module on private download.');
$this->assertFalse($this->drupalGetHeader('x-drupal-cache'), 'Page cache is disabled on private file download.');
$this->assertResponse(200, 'Correctly allowed access to a file when file_test provides headers.');
// Test that the file transferred correctly.
$this->assertEqual($contents, $this->content, 'Contents of the file are correct.');
// Deny access to all downloads via a -1 header.
file_test_set_return('download', -1);
$this->drupalHead($url);
$this->assertResponse(403, 'Correctly denied access to a file when file_test sets the header to -1.');
// Try non-existent file.
$url = file_create_url('private://' . $this->randomMachineName());
$this->drupalHead($url);
$this->assertResponse(404, 'Correctly returned 404 response for a non-existent file.');
}
/**
* Test file_create_url().
*/
public function testFileCreateUrl() {
// Tilde (~) is excluded from this test because it is encoded by
// rawurlencode() in PHP 5.2 but not in PHP 5.3, as per RFC 3986.
// @see http://php.net/manual/function.rawurlencode.php#86506
$basename = " -._!$'\"()*@[]?&+%#,;=:\n\x00" . // "Special" ASCII characters.
"%23%25%26%2B%2F%3F" . // Characters that look like a percent-escaped string.
"éøïвβ中國書۞"; // Characters from various non-ASCII alphabets.
$basename_encoded = '%20-._%21%24%27%22%28%29%2A%40%5B%5D%3F%26%2B%25%23%2C%3B%3D%3A__' .
'%2523%2525%2526%252B%252F%253F' .
'%C3%A9%C3%B8%C3%AF%D0%B2%CE%B2%E4%B8%AD%E5%9C%8B%E6%9B%B8%DB%9E';
// Public files should not be served by Drupal, so their URLs should not be
// routed through Drupal, whereas private files should be served by Drupal,
// so they need to be. The difference is most apparent when $script_path
// is not empty (i.e., when not using clean URLs).
$clean_url_settings = [
'clean' => '',
'unclean' => 'index.php/',
];
$public_directory_path = \Drupal::service('stream_wrapper_manager')->getViaScheme('public')->getDirectoryPath();
foreach ($clean_url_settings as $clean_url_setting => $script_path) {
$clean_urls = $clean_url_setting == 'clean';
$request = $this->prepareRequestForGenerator($clean_urls);
$base_path = $request->getSchemeAndHttpHost() . $request->getBasePath();
$this->checkUrl('public', '', $basename, $base_path . '/' . $public_directory_path . '/' . $basename_encoded);
$this->checkUrl('private', '', $basename, $base_path . '/' . $script_path . 'system/files/' . $basename_encoded);
}
$this->assertEqual(file_create_url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='), 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==', t('Generated URL matches expected URL.'));
// Test public files with a different host name from settings.
$test_base_url = 'http://www.example.com/cdn';
$this->settingsSet('file_public_base_url', $test_base_url);
$filepath = file_create_filename('test.txt', '');
$directory_uri = 'public://' . dirname($filepath);
file_prepare_directory($directory_uri, FILE_CREATE_DIRECTORY);
$file = $this->createFile($filepath, NULL, 'public');
$url = file_create_url($file->getFileUri());
$expected_url = $test_base_url . '/' . basename($filepath);
$this->assertEqual($url, $expected_url);
}
/**
* Download a file from the URL generated by file_create_url().
*
* Create a file with the specified scheme, directory and filename; check that
* the URL generated by file_create_url() for the specified file equals the
* specified URL; fetch the URL and then compare the contents to the file.
*
* @param string $scheme
* A scheme, e.g. "public".
* @param string $directory
* A directory, possibly "".
* @param string $filename
* A filename.
* @param string $expected_url
* The expected URL.
*/
private function checkUrl($scheme, $directory, $filename, $expected_url) {
// Convert $filename to a valid filename, i.e. strip characters not
// supported by the filesystem, and create the file in the specified
// directory.
$filepath = file_create_filename($filename, $directory);
$directory_uri = $scheme . '://' . dirname($filepath);
file_prepare_directory($directory_uri, FILE_CREATE_DIRECTORY);
$file = $this->createFile($filepath, NULL, $scheme);
$url = file_create_url($file->getFileUri());
$this->assertEqual($url, $expected_url);
if ($scheme == 'private') {
// Tell the implementation of hook_file_download() in file_test.module
// that this file may be downloaded.
file_test_set_return('download', ['x-foo' => 'Bar']);
}
$this->drupalGet($url);
if ($this->assertResponse(200) == 'pass') {
$this->assertRaw(file_get_contents($file->getFileUri()), 'Contents of the file are correct.');
}
$file->delete();
}
}