Add upstream

wp-content/plugins/updraftplus/vendor/symfony/process/CHANGELOG.md

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+CHANGELOG
+=========
+
+3.4.0
+-----
+
+ * deprecated the ProcessBuilder class
+ * deprecated calling `Process::start()` without setting a valid working directory beforehand (via `setWorkingDirectory()` or constructor)
+
+3.3.0
+-----
+
+ * added command line arrays in the `Process` class
+ * added `$env` argument to `Process::start()`, `run()`, `mustRun()` and `restart()` methods
+ * deprecated the `ProcessUtils::escapeArgument()` method
+ * deprecated not inheriting environment variables
+ * deprecated configuring `proc_open()` options
+ * deprecated configuring enhanced Windows compatibility
+ * deprecated configuring enhanced sigchild compatibility
+
+2.5.0
+-----
+
+ * added support for PTY mode
+ * added the convenience method "mustRun"
+ * deprecation: Process::setStdin() is deprecated in favor of Process::setInput()
+ * deprecation: Process::getStdin() is deprecated in favor of Process::getInput()
+ * deprecation: Process::setInput() and ProcessBuilder::setInput() do not accept non-scalar types
+
+2.4.0
+-----
+
+ * added the ability to define an idle timeout
+
+2.3.0
+-----
+
+ * added ProcessUtils::escapeArgument() to fix the bug in escapeshellarg() function on Windows
+ * added Process::signal()
+ * added Process::getPid()
+ * added support for a TTY mode
+
+2.2.0
+-----
+
+ * added ProcessBuilder::setArguments() to reset the arguments on a builder
+ * added a way to retrieve the standard and error output incrementally
+ * added Process:restart()
+
+2.1.0
+-----
+
+ * added support for non-blocking processes (start(), wait(), isRunning(), stop())
+ * enhanced Windows compatibility
+ * added Process::getExitCodeText() that returns a string representation for
+   the exit code returned by the process
+ * added ProcessBuilder

wp-content/plugins/updraftplus/vendor/symfony/process/Exception/ExceptionInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Exception;
+
+/**
+ * Marker Interface for the Process Component.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface ExceptionInterface
+{
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Exception/InvalidArgumentException.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Exception;
+
+/**
+ * InvalidArgumentException for the Process Component.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ */
+class InvalidArgumentException extends \InvalidArgumentException implements ExceptionInterface
+{
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Exception/LogicException.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Exception;
+
+/**
+ * LogicException for the Process Component.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ */
+class LogicException extends \LogicException implements ExceptionInterface
+{
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Exception/ProcessFailedException.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Exception;
+
+use Symfony\Component\Process\Process;
+
+/**
+ * Exception for failed processes.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ProcessFailedException extends RuntimeException
+{
+    private $process;
+
+    public function __construct(Process $process)
+    {
+        if ($process->isSuccessful()) {
+            throw new InvalidArgumentException('Expected a failed process, but the given process was successful.');
+        }
+
+        $error = sprintf('The command "%s" failed.'."\n\nExit Code: %s(%s)\n\nWorking directory: %s",
+            $process->getCommandLine(),
+            $process->getExitCode(),
+            $process->getExitCodeText(),
+            $process->getWorkingDirectory()
+        );
+
+        if (!$process->isOutputDisabled()) {
+            $error .= sprintf("\n\nOutput:\n================\n%s\n\nError Output:\n================\n%s",
+                $process->getOutput(),
+                $process->getErrorOutput()
+            );
+        }
+
+        parent::__construct($error);
+
+        $this->process = $process;
+    }
+
+    public function getProcess()
+    {
+        return $this->process;
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Exception/ProcessTimedOutException.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Exception;
+
+use Symfony\Component\Process\Process;
+
+/**
+ * Exception that is thrown when a process times out.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ProcessTimedOutException extends RuntimeException
+{
+    const TYPE_GENERAL = 1;
+    const TYPE_IDLE = 2;
+
+    private $process;
+    private $timeoutType;
+
+    public function __construct(Process $process, $timeoutType)
+    {
+        $this->process = $process;
+        $this->timeoutType = $timeoutType;
+
+        parent::__construct(sprintf(
+            'The process "%s" exceeded the timeout of %s seconds.',
+            $process->getCommandLine(),
+            $this->getExceededTimeout()
+        ));
+    }
+
+    public function getProcess()
+    {
+        return $this->process;
+    }
+
+    public function isGeneralTimeout()
+    {
+        return self::TYPE_GENERAL === $this->timeoutType;
+    }
+
+    public function isIdleTimeout()
+    {
+        return self::TYPE_IDLE === $this->timeoutType;
+    }
+
+    public function getExceededTimeout()
+    {
+        switch ($this->timeoutType) {
+            case self::TYPE_GENERAL:
+                return $this->process->getTimeout();
+
+            case self::TYPE_IDLE:
+                return $this->process->getIdleTimeout();
+
+            default:
+                throw new \LogicException(sprintf('Unknown timeout type "%d".', $this->timeoutType));
+        }
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Exception/RuntimeException.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Exception;
+
+/**
+ * RuntimeException for the Process Component.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class RuntimeException extends \RuntimeException implements ExceptionInterface
+{
+}

wp-content/plugins/updraftplus/vendor/symfony/process/ExecutableFinder.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+/**
+ * Generic executable finder.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ExecutableFinder
+{
+    private $suffixes = ['.exe', '.bat', '.cmd', '.com'];
+
+    /**
+     * Replaces default suffixes of executable.
+     */
+    public function setSuffixes(array $suffixes)
+    {
+        $this->suffixes = $suffixes;
+    }
+
+    /**
+     * Adds new possible suffix to check for executable.
+     *
+     * @param string $suffix
+     */
+    public function addSuffix($suffix)
+    {
+        $this->suffixes[] = $suffix;
+    }
+
+    /**
+     * Finds an executable by name.
+     *
+     * @param string      $name      The executable name (without the extension)
+     * @param string|null $default   The default to return if no executable is found
+     * @param array       $extraDirs Additional dirs to check into
+     *
+     * @return string|null The executable path or default value
+     */
+    public function find($name, $default = null, array $extraDirs = [])
+    {
+        if (ini_get('open_basedir')) {
+            $searchPath = array_merge(explode(PATH_SEPARATOR, ini_get('open_basedir')), $extraDirs);
+            $dirs = [];
+            foreach ($searchPath as $path) {
+                // Silencing against https://bugs.php.net/69240
+                if (@is_dir($path)) {
+                    $dirs[] = $path;
+                } else {
+                    if (basename($path) == $name && @is_executable($path)) {
+                        return $path;
+                    }
+                }
+            }
+        } else {
+            $dirs = array_merge(
+                explode(PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')),
+                $extraDirs
+            );
+        }
+
+        $suffixes = [''];
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $pathExt = getenv('PATHEXT');
+            $suffixes = array_merge($pathExt ? explode(PATH_SEPARATOR, $pathExt) : $this->suffixes, $suffixes);
+        }
+        foreach ($suffixes as $suffix) {
+            foreach ($dirs as $dir) {
+                if (@is_file($file = $dir.\DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === \DIRECTORY_SEPARATOR || @is_executable($file))) {
+                    return $file;
+                }
+            }
+        }
+
+        return $default;
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/InputStream.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+use Symfony\Component\Process\Exception\RuntimeException;
+
+/**
+ * Provides a way to continuously write to the input of a Process until the InputStream is closed.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class InputStream implements \IteratorAggregate
+{
+    /** @var callable|null */
+    private $onEmpty = null;
+    private $input = [];
+    private $open = true;
+
+    /**
+     * Sets a callback that is called when the write buffer becomes empty.
+     */
+    public function onEmpty(callable $onEmpty = null)
+    {
+        $this->onEmpty = $onEmpty;
+    }
+
+    /**
+     * Appends an input to the write buffer.
+     *
+     * @param resource|string|int|float|bool|\Traversable|null $input The input to append as scalar,
+     *                                                                stream resource or \Traversable
+     */
+    public function write($input)
+    {
+        if (null === $input) {
+            return;
+        }
+        if ($this->isClosed()) {
+            throw new RuntimeException(sprintf('%s is closed', static::class));
+        }
+        $this->input[] = ProcessUtils::validateInput(__METHOD__, $input);
+    }
+
+    /**
+     * Closes the write buffer.
+     */
+    public function close()
+    {
+        $this->open = false;
+    }
+
+    /**
+     * Tells whether the write buffer is closed or not.
+     */
+    public function isClosed()
+    {
+        return !$this->open;
+    }
+
+    public function getIterator()
+    {
+        $this->open = true;
+
+        while ($this->open || $this->input) {
+            if (!$this->input) {
+                yield '';
+                continue;
+            }
+            $current = array_shift($this->input);
+
+            if ($current instanceof \Iterator) {
+                foreach ($current as $cur) {
+                    yield $cur;
+                }
+            } else {
+                yield $current;
+            }
+            if (!$this->input && $this->open && null !== $onEmpty = $this->onEmpty) {
+                $this->write($onEmpty($this));
+            }
+        }
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/LICENSE

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+Copyright (c) 2004-2019 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

wp-content/plugins/updraftplus/vendor/symfony/process/PhpExecutableFinder.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+/**
+ * An executable finder specifically designed for the PHP executable.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class PhpExecutableFinder
+{
+    private $executableFinder;
+
+    public function __construct()
+    {
+        $this->executableFinder = new ExecutableFinder();
+    }
+
+    /**
+     * Finds The PHP executable.
+     *
+     * @param bool $includeArgs Whether or not include command arguments
+     *
+     * @return string|false The PHP executable path or false if it cannot be found
+     */
+    public function find($includeArgs = true)
+    {
+        $args = $this->findArguments();
+        $args = $includeArgs && $args ? ' '.implode(' ', $args) : '';
+
+        // HHVM support
+        if (\defined('HHVM_VERSION')) {
+            return (getenv('PHP_BINARY') ?: PHP_BINARY).$args;
+        }
+
+        // PHP_BINARY return the current sapi executable
+        if (PHP_BINARY && \in_array(\PHP_SAPI, ['cli', 'cli-server', 'phpdbg'], true)) {
+            return PHP_BINARY.$args;
+        }
+
+        if ($php = getenv('PHP_PATH')) {
+            if (!@is_executable($php)) {
+                return false;
+            }
+
+            return $php;
+        }
+
+        if ($php = getenv('PHP_PEAR_PHP_BIN')) {
+            if (@is_executable($php)) {
+                return $php;
+            }
+        }
+
+        if (@is_executable($php = PHP_BINDIR.('\\' === \DIRECTORY_SEPARATOR ? '\\php.exe' : '/php'))) {
+            return $php;
+        }
+
+        $dirs = [PHP_BINDIR];
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $dirs[] = 'C:\xampp\php\\';
+        }
+
+        return $this->executableFinder->find('php', false, $dirs);
+    }
+
+    /**
+     * Finds the PHP executable arguments.
+     *
+     * @return array The PHP executable arguments
+     */
+    public function findArguments()
+    {
+        $arguments = [];
+
+        if (\defined('HHVM_VERSION')) {
+            $arguments[] = '--php';
+        } elseif ('phpdbg' === \PHP_SAPI) {
+            $arguments[] = '-qrr';
+        }
+
+        return $arguments;
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/PhpProcess.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+use Symfony\Component\Process\Exception\RuntimeException;
+
+/**
+ * PhpProcess runs a PHP script in an independent process.
+ *
+ *     $p = new PhpProcess('<?php echo "foo"; ?>');
+ *     $p->run();
+ *     print $p->getOutput()."\n";
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class PhpProcess extends Process
+{
+    /**
+     * @param string      $script  The PHP script to run (as a string)
+     * @param string|null $cwd     The working directory or null to use the working dir of the current PHP process
+     * @param array|null  $env     The environment variables or null to use the same environment as the current PHP process
+     * @param int         $timeout The timeout in seconds
+     * @param array       $options An array of options for proc_open
+     */
+    public function __construct($script, $cwd = null, array $env = null, $timeout = 60, array $options = null)
+    {
+        $executableFinder = new PhpExecutableFinder();
+        if (false === $php = $executableFinder->find(false)) {
+            $php = null;
+        } else {
+            $php = array_merge([$php], $executableFinder->findArguments());
+        }
+        if ('phpdbg' === \PHP_SAPI) {
+            $file = tempnam(sys_get_temp_dir(), 'dbg');
+            file_put_contents($file, $script);
+            register_shutdown_function('unlink', $file);
+            $php[] = $file;
+            $script = null;
+        }
+        if (null !== $options) {
+            @trigger_error(sprintf('The $options parameter of the %s constructor is deprecated since Symfony 3.3 and will be removed in 4.0.', __CLASS__), E_USER_DEPRECATED);
+        }
+
+        parent::__construct($php, $cwd, $env, $script, $timeout, $options);
+    }
+
+    /**
+     * Sets the path to the PHP binary to use.
+     */
+    public function setPhpBinary($php)
+    {
+        $this->setCommandLine($php);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function start(callable $callback = null/*, array $env = []*/)
+    {
+        if (null === $this->getCommandLine()) {
+            throw new RuntimeException('Unable to find the PHP executable.');
+        }
+        $env = 1 < \func_num_args() ? func_get_arg(1) : null;
+
+        parent::start($callback, $env);
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Pipes/AbstractPipes.php

@@ -0,0 +1,178 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Pipes;
+
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+/**
+ * @author Romain Neutron <imprec@gmail.com>
+ *
+ * @internal
+ */
+abstract class AbstractPipes implements PipesInterface
+{
+    public $pipes = [];
+
+    private $inputBuffer = '';
+    private $input;
+    private $blocked = true;
+    private $lastError;
+
+    /**
+     * @param resource|string|int|float|bool|\Iterator|null $input
+     */
+    public function __construct($input)
+    {
+        if (\is_resource($input) || $input instanceof \Iterator) {
+            $this->input = $input;
+        } elseif (\is_string($input)) {
+            $this->inputBuffer = $input;
+        } else {
+            $this->inputBuffer = (string) $input;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        foreach ($this->pipes as $pipe) {
+            fclose($pipe);
+        }
+        $this->pipes = [];
+    }
+
+    /**
+     * Returns true if a system call has been interrupted.
+     *
+     * @return bool
+     */
+    protected function hasSystemCallBeenInterrupted()
+    {
+        $lastError = $this->lastError;
+        $this->lastError = null;
+
+        // stream_select returns false when the `select` system call is interrupted by an incoming signal
+        return null !== $lastError && false !== stripos($lastError, 'interrupted system call');
+    }
+
+    /**
+     * Unblocks streams.
+     */
+    protected function unblock()
+    {
+        if (!$this->blocked) {
+            return;
+        }
+
+        foreach ($this->pipes as $pipe) {
+            stream_set_blocking($pipe, 0);
+        }
+        if (\is_resource($this->input)) {
+            stream_set_blocking($this->input, 0);
+        }
+
+        $this->blocked = false;
+    }
+
+    /**
+     * Writes input to stdin.
+     *
+     * @throws InvalidArgumentException When an input iterator yields a non supported value
+     */
+    protected function write()
+    {
+        if (!isset($this->pipes[0])) {
+            return;
+        }
+        $input = $this->input;
+
+        if ($input instanceof \Iterator) {
+            if (!$input->valid()) {
+                $input = null;
+            } elseif (\is_resource($input = $input->current())) {
+                stream_set_blocking($input, 0);
+            } elseif (!isset($this->inputBuffer[0])) {
+                if (!\is_string($input)) {
+                    if (!is_scalar($input)) {
+                        throw new InvalidArgumentException(sprintf('%s yielded a value of type "%s", but only scalars and stream resources are supported', \get_class($this->input), \gettype($input)));
+                    }
+                    $input = (string) $input;
+                }
+                $this->inputBuffer = $input;
+                $this->input->next();
+                $input = null;
+            } else {
+                $input = null;
+            }
+        }
+
+        $r = $e = [];
+        $w = [$this->pipes[0]];
+
+        // let's have a look if something changed in streams
+        if (false === @stream_select($r, $w, $e, 0, 0)) {
+            return;
+        }
+
+        foreach ($w as $stdin) {
+            if (isset($this->inputBuffer[0])) {
+                $written = fwrite($stdin, $this->inputBuffer);
+                $this->inputBuffer = substr($this->inputBuffer, $written);
+                if (isset($this->inputBuffer[0])) {
+                    return [$this->pipes[0]];
+                }
+            }
+
+            if ($input) {
+                for (;;) {
+                    $data = fread($input, self::CHUNK_SIZE);
+                    if (!isset($data[0])) {
+                        break;
+                    }
+                    $written = fwrite($stdin, $data);
+                    $data = substr($data, $written);
+                    if (isset($data[0])) {
+                        $this->inputBuffer = $data;
+
+                        return [$this->pipes[0]];
+                    }
+                }
+                if (feof($input)) {
+                    if ($this->input instanceof \Iterator) {
+                        $this->input->next();
+                    } else {
+                        $this->input = null;
+                    }
+                }
+            }
+        }
+
+        // no input to read on resource, buffer is empty
+        if (!isset($this->inputBuffer[0]) && !($this->input instanceof \Iterator ? $this->input->valid() : $this->input)) {
+            $this->input = null;
+            fclose($this->pipes[0]);
+            unset($this->pipes[0]);
+        } elseif (!$w) {
+            return [$this->pipes[0]];
+        }
+    }
+
+    /**
+     * @internal
+     */
+    public function handleError($type, $msg)
+    {
+        $this->lastError = $msg;
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Pipes/PipesInterface.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Pipes;
+
+/**
+ * PipesInterface manages descriptors and pipes for the use of proc_open.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ *
+ * @internal
+ */
+interface PipesInterface
+{
+    const CHUNK_SIZE = 16384;
+
+    /**
+     * Returns an array of descriptors for the use of proc_open.
+     *
+     * @return array
+     */
+    public function getDescriptors();
+
+    /**
+     * Returns an array of filenames indexed by their related stream in case these pipes use temporary files.
+     *
+     * @return string[]
+     */
+    public function getFiles();
+
+    /**
+     * Reads data in file handles and pipes.
+     *
+     * @param bool $blocking Whether to use blocking calls or not
+     * @param bool $close    Whether to close pipes if they've reached EOF
+     *
+     * @return string[] An array of read data indexed by their fd
+     */
+    public function readAndWrite($blocking, $close = false);
+
+    /**
+     * Returns if the current state has open file handles or pipes.
+     *
+     * @return bool
+     */
+    public function areOpen();
+
+    /**
+     * Returns if pipes are able to read output.
+     *
+     * @return bool
+     */
+    public function haveReadSupport();
+
+    /**
+     * Closes file handles and pipes.
+     */
+    public function close();
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Pipes/UnixPipes.php

@@ -0,0 +1,153 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Pipes;
+
+use Symfony\Component\Process\Process;
+
+/**
+ * UnixPipes implementation uses unix pipes as handles.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ *
+ * @internal
+ */
+class UnixPipes extends AbstractPipes
+{
+    private $ttyMode;
+    private $ptyMode;
+    private $haveReadSupport;
+
+    public function __construct($ttyMode, $ptyMode, $input, $haveReadSupport)
+    {
+        $this->ttyMode = (bool) $ttyMode;
+        $this->ptyMode = (bool) $ptyMode;
+        $this->haveReadSupport = (bool) $haveReadSupport;
+
+        parent::__construct($input);
+    }
+
+    public function __destruct()
+    {
+        $this->close();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDescriptors()
+    {
+        if (!$this->haveReadSupport) {
+            $nullstream = fopen('/dev/null', 'c');
+
+            return [
+                ['pipe', 'r'],
+                $nullstream,
+                $nullstream,
+            ];
+        }
+
+        if ($this->ttyMode) {
+            return [
+                ['file', '/dev/tty', 'r'],
+                ['file', '/dev/tty', 'w'],
+                ['file', '/dev/tty', 'w'],
+            ];
+        }
+
+        if ($this->ptyMode && Process::isPtySupported()) {
+            return [
+                ['pty'],
+                ['pty'],
+                ['pty'],
+            ];
+        }
+
+        return [
+            ['pipe', 'r'],
+            ['pipe', 'w'], // stdout
+            ['pipe', 'w'], // stderr
+        ];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFiles()
+    {
+        return [];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function readAndWrite($blocking, $close = false)
+    {
+        $this->unblock();
+        $w = $this->write();
+
+        $read = $e = [];
+        $r = $this->pipes;
+        unset($r[0]);
+
+        // let's have a look if something changed in streams
+        set_error_handler([$this, 'handleError']);
+        if (($r || $w) && false === stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) {
+            restore_error_handler();
+            // if a system call has been interrupted, forget about it, let's try again
+            // otherwise, an error occurred, let's reset pipes
+            if (!$this->hasSystemCallBeenInterrupted()) {
+                $this->pipes = [];
+            }
+
+            return $read;
+        }
+        restore_error_handler();
+
+        foreach ($r as $pipe) {
+            // prior PHP 5.4 the array passed to stream_select is modified and
+            // lose key association, we have to find back the key
+            $read[$type = array_search($pipe, $this->pipes, true)] = '';
+
+            do {
+                $data = fread($pipe, self::CHUNK_SIZE);
+                $read[$type] .= $data;
+            } while (isset($data[0]) && ($close || isset($data[self::CHUNK_SIZE - 1])));
+
+            if (!isset($read[$type][0])) {
+                unset($read[$type]);
+            }
+
+            if ($close && feof($pipe)) {
+                fclose($pipe);
+                unset($this->pipes[$type]);
+            }
+        }
+
+        return $read;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function haveReadSupport()
+    {
+        return $this->haveReadSupport;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function areOpen()
+    {
+        return (bool) $this->pipes;
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/Pipes/WindowsPipes.php

@@ -0,0 +1,191 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process\Pipes;
+
+use Symfony\Component\Process\Exception\RuntimeException;
+use Symfony\Component\Process\Process;
+
+/**
+ * WindowsPipes implementation uses temporary files as handles.
+ *
+ * @see https://bugs.php.net/bug.php?id=51800
+ * @see https://bugs.php.net/bug.php?id=65650
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ *
+ * @internal
+ */
+class WindowsPipes extends AbstractPipes
+{
+    private $files = [];
+    private $fileHandles = [];
+    private $lockHandles = [];
+    private $readBytes = [
+        Process::STDOUT => 0,
+        Process::STDERR => 0,
+    ];
+    private $haveReadSupport;
+
+    public function __construct($input, $haveReadSupport)
+    {
+        $this->haveReadSupport = (bool) $haveReadSupport;
+
+        if ($this->haveReadSupport) {
+            // Fix for PHP bug #51800: reading from STDOUT pipe hangs forever on Windows if the output is too big.
+            // Workaround for this problem is to use temporary files instead of pipes on Windows platform.
+            //
+            // @see https://bugs.php.net/bug.php?id=51800
+            $pipes = [
+                Process::STDOUT => Process::OUT,
+                Process::STDERR => Process::ERR,
+            ];
+            $tmpDir = sys_get_temp_dir();
+            $lastError = 'unknown reason';
+            set_error_handler(function ($type, $msg) use (&$lastError) { $lastError = $msg; });
+            for ($i = 0;; ++$i) {
+                foreach ($pipes as $pipe => $name) {
+                    $file = sprintf('%s\\sf_proc_%02X.%s', $tmpDir, $i, $name);
+
+                    if (!$h = fopen($file.'.lock', 'w')) {
+                        restore_error_handler();
+                        throw new RuntimeException(sprintf('A temporary file could not be opened to write the process output: %s', $lastError));
+                    }
+                    if (!flock($h, LOCK_EX | LOCK_NB)) {
+                        continue 2;
+                    }
+                    if (isset($this->lockHandles[$pipe])) {
+                        flock($this->lockHandles[$pipe], LOCK_UN);
+                        fclose($this->lockHandles[$pipe]);
+                    }
+                    $this->lockHandles[$pipe] = $h;
+
+                    if (!fclose(fopen($file, 'w')) || !$h = fopen($file, 'r')) {
+                        flock($this->lockHandles[$pipe], LOCK_UN);
+                        fclose($this->lockHandles[$pipe]);
+                        unset($this->lockHandles[$pipe]);
+                        continue 2;
+                    }
+                    $this->fileHandles[$pipe] = $h;
+                    $this->files[$pipe] = $file;
+                }
+                break;
+            }
+            restore_error_handler();
+        }
+
+        parent::__construct($input);
+    }
+
+    public function __destruct()
+    {
+        $this->close();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDescriptors()
+    {
+        if (!$this->haveReadSupport) {
+            $nullstream = fopen('NUL', 'c');
+
+            return [
+                ['pipe', 'r'],
+                $nullstream,
+                $nullstream,
+            ];
+        }
+
+        // We're not using pipe on Windows platform as it hangs (https://bugs.php.net/bug.php?id=51800)
+        // We're not using file handles as it can produce corrupted output https://bugs.php.net/bug.php?id=65650
+        // So we redirect output within the commandline and pass the nul device to the process
+        return [
+            ['pipe', 'r'],
+            ['file', 'NUL', 'w'],
+            ['file', 'NUL', 'w'],
+        ];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFiles()
+    {
+        return $this->files;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function readAndWrite($blocking, $close = false)
+    {
+        $this->unblock();
+        $w = $this->write();
+        $read = $r = $e = [];
+
+        if ($blocking) {
+            if ($w) {
+                @stream_select($r, $w, $e, 0, Process::TIMEOUT_PRECISION * 1E6);
+            } elseif ($this->fileHandles) {
+                usleep(Process::TIMEOUT_PRECISION * 1E6);
+            }
+        }
+        foreach ($this->fileHandles as $type => $fileHandle) {
+            $data = stream_get_contents($fileHandle, -1, $this->readBytes[$type]);
+
+            if (isset($data[0])) {
+                $this->readBytes[$type] += \strlen($data);
+                $read[$type] = $data;
+            }
+            if ($close) {
+                ftruncate($fileHandle, 0);
+                fclose($fileHandle);
+                flock($this->lockHandles[$type], LOCK_UN);
+                fclose($this->lockHandles[$type]);
+                unset($this->fileHandles[$type], $this->lockHandles[$type]);
+            }
+        }
+
+        return $read;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function haveReadSupport()
+    {
+        return $this->haveReadSupport;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function areOpen()
+    {
+        return $this->pipes && $this->fileHandles;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        parent::close();
+        foreach ($this->fileHandles as $type => $handle) {
+            ftruncate($handle, 0);
+            fclose($handle);
+            flock($this->lockHandles[$type], LOCK_UN);
+            fclose($this->lockHandles[$type]);
+        }
+        $this->fileHandles = $this->lockHandles = [];
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/ProcessBuilder.php

@@ -0,0 +1,280 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+@trigger_error(sprintf('The %s class is deprecated since Symfony 3.4 and will be removed in 4.0. Use the Process class instead.', ProcessBuilder::class), E_USER_DEPRECATED);
+
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+use Symfony\Component\Process\Exception\LogicException;
+
+/**
+ * @author Kris Wallsmith <kris@symfony.com>
+ *
+ * @deprecated since version 3.4, to be removed in 4.0. Use the Process class instead.
+ */
+class ProcessBuilder
+{
+    private $arguments;
+    private $cwd;
+    private $env = [];
+    private $input;
+    private $timeout = 60;
+    private $options;
+    private $inheritEnv = true;
+    private $prefix = [];
+    private $outputDisabled = false;
+
+    /**
+     * @param string[] $arguments An array of arguments
+     */
+    public function __construct(array $arguments = [])
+    {
+        $this->arguments = $arguments;
+    }
+
+    /**
+     * Creates a process builder instance.
+     *
+     * @param string[] $arguments An array of arguments
+     *
+     * @return static
+     */
+    public static function create(array $arguments = [])
+    {
+        return new static($arguments);
+    }
+
+    /**
+     * Adds an unescaped argument to the command string.
+     *
+     * @param string $argument A command argument
+     *
+     * @return $this
+     */
+    public function add($argument)
+    {
+        $this->arguments[] = $argument;
+
+        return $this;
+    }
+
+    /**
+     * Adds a prefix to the command string.
+     *
+     * The prefix is preserved when resetting arguments.
+     *
+     * @param string|array $prefix A command prefix or an array of command prefixes
+     *
+     * @return $this
+     */
+    public function setPrefix($prefix)
+    {
+        $this->prefix = \is_array($prefix) ? $prefix : [$prefix];
+
+        return $this;
+    }
+
+    /**
+     * Sets the arguments of the process.
+     *
+     * Arguments must not be escaped.
+     * Previous arguments are removed.
+     *
+     * @param string[] $arguments
+     *
+     * @return $this
+     */
+    public function setArguments(array $arguments)
+    {
+        $this->arguments = $arguments;
+
+        return $this;
+    }
+
+    /**
+     * Sets the working directory.
+     *
+     * @param string|null $cwd The working directory
+     *
+     * @return $this
+     */
+    public function setWorkingDirectory($cwd)
+    {
+        $this->cwd = $cwd;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether environment variables will be inherited or not.
+     *
+     * @param bool $inheritEnv
+     *
+     * @return $this
+     */
+    public function inheritEnvironmentVariables($inheritEnv = true)
+    {
+        $this->inheritEnv = $inheritEnv;
+
+        return $this;
+    }
+
+    /**
+     * Sets an environment variable.
+     *
+     * Setting a variable overrides its previous value. Use `null` to unset a
+     * defined environment variable.
+     *
+     * @param string      $name  The variable name
+     * @param string|null $value The variable value
+     *
+     * @return $this
+     */
+    public function setEnv($name, $value)
+    {
+        $this->env[$name] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Adds a set of environment variables.
+     *
+     * Already existing environment variables with the same name will be
+     * overridden by the new values passed to this method. Pass `null` to unset
+     * a variable.
+     *
+     * @param array $variables The variables
+     *
+     * @return $this
+     */
+    public function addEnvironmentVariables(array $variables)
+    {
+        $this->env = array_replace($this->env, $variables);
+
+        return $this;
+    }
+
+    /**
+     * Sets the input of the process.
+     *
+     * @param resource|string|int|float|bool|\Traversable|null $input The input content
+     *
+     * @return $this
+     *
+     * @throws InvalidArgumentException In case the argument is invalid
+     */
+    public function setInput($input)
+    {
+        $this->input = ProcessUtils::validateInput(__METHOD__, $input);
+
+        return $this;
+    }
+
+    /**
+     * Sets the process timeout.
+     *
+     * To disable the timeout, set this value to null.
+     *
+     * @param float|null $timeout
+     *
+     * @return $this
+     *
+     * @throws InvalidArgumentException
+     */
+    public function setTimeout($timeout)
+    {
+        if (null === $timeout) {
+            $this->timeout = null;
+
+            return $this;
+        }
+
+        $timeout = (float) $timeout;
+
+        if ($timeout < 0) {
+            throw new InvalidArgumentException('The timeout value must be a valid positive integer or float number.');
+        }
+
+        $this->timeout = $timeout;
+
+        return $this;
+    }
+
+    /**
+     * Adds a proc_open option.
+     *
+     * @param string $name  The option name
+     * @param string $value The option value
+     *
+     * @return $this
+     */
+    public function setOption($name, $value)
+    {
+        $this->options[$name] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Disables fetching output and error output from the underlying process.
+     *
+     * @return $this
+     */
+    public function disableOutput()
+    {
+        $this->outputDisabled = true;
+
+        return $this;
+    }
+
+    /**
+     * Enables fetching output and error output from the underlying process.
+     *
+     * @return $this
+     */
+    public function enableOutput()
+    {
+        $this->outputDisabled = false;
+
+        return $this;
+    }
+
+    /**
+     * Creates a Process instance and returns it.
+     *
+     * @return Process
+     *
+     * @throws LogicException In case no arguments have been provided
+     */
+    public function getProcess()
+    {
+        if (0 === \count($this->prefix) && 0 === \count($this->arguments)) {
+            throw new LogicException('You must add() command arguments before calling getProcess().');
+        }
+
+        $arguments = array_merge($this->prefix, $this->arguments);
+        $process = new Process($arguments, $this->cwd, $this->env, $this->input, $this->timeout, $this->options);
+        // to preserve the BC with symfony <3.3, we convert the array structure
+        // to a string structure to avoid the prefixing with the exec command
+        $process->setCommandLine($process->getCommandLine());
+
+        if ($this->inheritEnv) {
+            $process->inheritEnvironmentVariables();
+        }
+        if ($this->outputDisabled) {
+            $process->disableOutput();
+        }
+
+        return $process;
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/ProcessUtils.php

@@ -0,0 +1,123 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Process;
+
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+/**
+ * ProcessUtils is a bunch of utility methods.
+ *
+ * This class contains static methods only and is not meant to be instantiated.
+ *
+ * @author Martin Hasoň <martin.hason@gmail.com>
+ */
+class ProcessUtils
+{
+    /**
+     * This class should not be instantiated.
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Escapes a string to be used as a shell argument.
+     *
+     * @param string $argument The argument that will be escaped
+     *
+     * @return string The escaped argument
+     *
+     * @deprecated since version 3.3, to be removed in 4.0. Use a command line array or give env vars to the `Process::start/run()` method instead.
+     */
+    public static function escapeArgument($argument)
+    {
+        @trigger_error('The '.__METHOD__.'() method is deprecated since Symfony 3.3 and will be removed in 4.0. Use a command line array or give env vars to the Process::start/run() method instead.', E_USER_DEPRECATED);
+
+        //Fix for PHP bug #43784 escapeshellarg removes % from given string
+        //Fix for PHP bug #49446 escapeshellarg doesn't work on Windows
+        //@see https://bugs.php.net/bug.php?id=43784
+        //@see https://bugs.php.net/bug.php?id=49446
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            if ('' === $argument) {
+                return escapeshellarg($argument);
+            }
+
+            $escapedArgument = '';
+            $quote = false;
+            foreach (preg_split('/(")/', $argument, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE) as $part) {
+                if ('"' === $part) {
+                    $escapedArgument .= '\\"';
+                } elseif (self::isSurroundedBy($part, '%')) {
+                    // Avoid environment variable expansion
+                    $escapedArgument .= '^%"'.substr($part, 1, -1).'"^%';
+                } else {
+                    // escape trailing backslash
+                    if ('\\' === substr($part, -1)) {
+                        $part .= '\\';
+                    }
+                    $quote = true;
+                    $escapedArgument .= $part;
+                }
+            }
+            if ($quote) {
+                $escapedArgument = '"'.$escapedArgument.'"';
+            }
+
+            return $escapedArgument;
+        }
+
+        return "'".str_replace("'", "'\\''", $argument)."'";
+    }
+
+    /**
+     * Validates and normalizes a Process input.
+     *
+     * @param string $caller The name of method call that validates the input
+     * @param mixed  $input  The input to validate
+     *
+     * @return mixed The validated input
+     *
+     * @throws InvalidArgumentException In case the input is not valid
+     */
+    public static function validateInput($caller, $input)
+    {
+        if (null !== $input) {
+            if (\is_resource($input)) {
+                return $input;
+            }
+            if (\is_string($input)) {
+                return $input;
+            }
+            if (is_scalar($input)) {
+                return (string) $input;
+            }
+            if ($input instanceof Process) {
+                return $input->getIterator($input::ITER_SKIP_ERR);
+            }
+            if ($input instanceof \Iterator) {
+                return $input;
+            }
+            if ($input instanceof \Traversable) {
+                return new \IteratorIterator($input);
+            }
+
+            throw new InvalidArgumentException(sprintf('%s only accepts strings, Traversable objects or stream resources.', $caller));
+        }
+
+        return $input;
+    }
+
+    private static function isSurroundedBy($arg, $char)
+    {
+        return 2 < \strlen($arg) && $char === $arg[0] && $char === $arg[\strlen($arg) - 1];
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/README.md

@@ -0,0 +1,13 @@
+Process Component
+=================
+
+The Process component executes commands in sub-processes.
+
+Resources
+---------
+
+  * [Documentation](https://symfony.com/doc/current/components/process.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)

wp-content/plugins/updraftplus/vendor/symfony/process/composer.json

@@ -0,0 +1,33 @@
+{
+    "name": "symfony/process",
+    "type": "library",
+    "description": "Symfony Process Component",
+    "keywords": [],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": "^5.5.9|>=7.0.8"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\Process\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.4-dev"
+        }
+    }
+}

wp-content/plugins/updraftplus/vendor/symfony/process/phpunit.xml.dist

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/5.2/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Symfony Process Component Test Suite">
+            <directory>./Tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>