/**
* Handle an incoming request.
*
* @param Request $request
* @param \Closure $next
* @return Response
* @throws InvalidCsrfTokenException
*/
public function handle(Request $request, Closure $next) : Response
{
$cookieData = $request->cookie('csrfToken');
if ($cookieData) {
$this->_token = $cookieData;
}
$createCookie = false;
if ($request->method() == 'GET' and $cookieData === null) {
$this->_token = hash('sha1', Text::uuid());
$createCookie = true;
}
if (in_array($request->method(), ['PATCH', 'PUT', 'POST', 'DELETE'])) {
$post = $request->data['_csrfToken'];
$header = $request->header('X-CSRF-Token');
if (empty($cookieData)) {
throw new InvalidCsrfTokenException('Missing CSRF token cookie');
}
if ($post !== $cookieData and $header !== $cookieData) {
throw new InvalidCsrfTokenException('CSRF token mismatch');
}
}
$response = $next($request);
if ($createCookie) {
$response->cookie('csrfToken', $this->_token);
}
return $response;
}
/**
* Checks the filesize
*
* @param string|array $check Value to check.
* @param string|null $operator See `BasicProvider::comparison()`.
* @param int|string|null $size Size in bytes or human readable string like '5MB'.
* @return bool Success
*/
public function fileSize($check, $operator = null, $size = null)
{
if (is_array($check) && isset($check['tmp_name'])) {
$check = $check['tmp_name'];
}
if (is_string($size)) {
$size = Text::parseFileSize($size);
}
$filesize = filesize($check);
return $this->comparison($filesize, $operator, $size);
}
/**
* Check if a shell class exists for the given name.
*
* @param string $shell The shell name to look for.
* @return string|bool Either the classname or false.
*/
protected function _shellExists($shell)
{
$text = new Text($shell);
$shell = $text->camelize();
$class = __NAMESPACE__ . "\\Shell\\{$shell}Shell";
if (class_exists($class)) {
return $class;
}
return false;
}
/**
* Takes a processed array of data from an error and displays it in the chosen format.
*
* @param string $data Data to output.
* @return void
*/
public function outputError($data)
{
$defaults = ['level' => 0, 'error' => 0, 'code' => 0, 'description' => '', 'file' => '', 'line' => 0, 'context' => [], 'start' => 2];
$data += $defaults;
$files = $this->trace(['start' => $data['start'], 'format' => 'points']);
$code = '';
$file = null;
if (isset($files[0]['file'])) {
$file = $files[0];
} elseif (isset($files[1]['file'])) {
$file = $files[1];
}
if ($file) {
$code = $this->excerpt($file['file'], $file['line'] - 1, 1);
}
$trace = $this->trace(['start' => $data['start'], 'depth' => '20']);
$insertOpts = ['before' => '{:', 'after' => '}'];
$context = [];
$links = [];
$info = '';
foreach ((array) $data['context'] as $var => $value) {
$context[] = "\${$var} = " . $this->exportVar($value, 3);
}
switch ($this->_outputFormat) {
case false:
$this->_data[] = compact('context', 'trace') + $data;
return;
case 'log':
$this->log(compact('context', 'trace') + $data);
return;
}
$data['trace'] = $trace;
$data['id'] = 'cakeErr' . uniqid();
$tpl = $this->_templates[$this->_outputFormat] + $this->_templates['base'];
if (isset($tpl['links'])) {
foreach ($tpl['links'] as $key => $val) {
$links[$key] = Text::insert($val, $data, $insertOpts);
}
}
if (!empty($tpl['escapeContext'])) {
$context = h($context);
}
$infoData = compact('code', 'context', 'trace');
foreach ($infoData as $key => $value) {
if (empty($value) || !isset($tpl[$key])) {
continue;
}
if (is_array($value)) {
$value = implode("\n", $value);
}
$info .= Text::insert($tpl[$key], [$key => $value] + $data, $insertOpts);
}
$links = implode(' ', $links);
if (isset($tpl['callback']) && is_callable($tpl['callback'])) {
return call_user_func($tpl['callback'], $data, compact('links', 'info'));
}
echo Text::insert($tpl['error'], compact('links', 'info') + $data, $insertOpts);
}
/**
* testHumanization method
*
* @return void
*/
public function testHumanization()
{
$testArray = ["posts" => "Posts", "posts_tags" => "Posts Tags", "file_systems" => "File Systems", null => '', false => '', 'hello_wörld' => 'Hello Wörld', '福岡_city' => '福岡 City'];
foreach ($testArray as $key => $expected) {
$text = new Text($key);
$this->assertSame($expected, $text->humanize());
}
}
/**
* Wraps a complete block of text to a specific width, can optionally wrap
* at word breaks.
*
* ### Options
*
* - `width` The width to wrap to. Defaults to 72.
* - `wordWrap` Only wrap on words breaks (spaces) Defaults to true.
* - `indent` String to indent with. Defaults to null.
* - `indentAt` 0 based index to start indenting at. Defaults to 0.
*
* @param array|int $options Array of options to use, or an integer to wrap the text to.
* @return string Formatted text.
*/
public function wrapBlock($options = [])
{
if (is_numeric($options)) {
$options = ['width' => $options];
}
$options += ['width' => 72, 'wordWrap' => true, 'indent' => null, 'indentAt' => 0];
if (!empty($options['indentAt']) && $options['indentAt'] === 0) {
$indentLength = !empty($options['indent']) ? strlen($options['indent']) : 0;
$options['width'] = $options['width'] - $indentLength;
return $this->wrap($options);
}
$wrapped = $this->wrap($options);
if (!empty($options['indent'])) {
$indentationLength = mb_strlen($options['indent']);
$chunks = explode("\n", $wrapped);
$count = count($chunks);
if ($count < 2) {
return $wrapped;
}
$toRewrap = '';
for ($i = $options['indentAt']; $i < $count; $i++) {
$toRewrap .= mb_substr($chunks[$i], $indentationLength) . ' ';
unset($chunks[$i]);
}
$options['width'] -= $indentationLength;
$options['indentAt'] = 0;
$toRewrapText = new Text($toRewrap);
$rewrapped = $toRewrapText->wrap($options);
$newChunks = explode("\n", $rewrapped);
$chunks = array_merge($chunks, $newChunks);
$wrapped = implode("\n", $chunks);
}
return $wrapped;
}
/**
* Get random bytes from a secure source.
*
* This method will fall back to an insecure source an trigger a warning
* if it cannot find a secure source of random data.
*
* @param int $length The number of bytes you want.
* @return string Random bytes in binary.
*/
public static function randomBytes($length)
{
if (function_exists('random_bytes')) {
return random_bytes($length);
}
if (function_exists('openssl_random_pseudo_bytes')) {
$bytes = openssl_random_pseudo_bytes($length, $strongSource);
if (!$strongSource) {
trigger_error('openssl was unable to use a strong source of entropy. ' . 'Consider updating your system libraries, or ensuring ' . 'you have more available entropy.', E_USER_WARNING);
}
return $bytes;
}
trigger_error('You do not have a safe source of random data available. ' . 'Install either the openssl extension, or paragonie/random_compat. ' . 'Falling back to an insecure random source.', E_USER_WARNING);
$bytes = '';
$byteLength = 0;
while ($byteLength < $length) {
$bytes .= hash('sha512', Text::uuid() . uniqid(mt_rand(), true));
$byteLength = strlen($bytes);
}
return substr($bytes, 0, $length);
}
