first commit

wp-content/plugins/filebird/vendor/autoload.php

@@ -0,0 +1,25 @@
+<?php
+
+// autoload.php @generated by Composer
+
+if (PHP_VERSION_ID < 50600) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    $err = 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, $err);
+        } elseif (!headers_sent()) {
+            echo $err;
+        }
+    }
+    trigger_error(
+        $err,
+        E_USER_ERROR
+    );
+}
+
+require_once __DIR__ . '/composer/autoload_real.php';
+
+return ComposerAutoloaderInit1a882ef483ffe247352bb74be1c0ccf9::getLoader();

wp-content/plugins/filebird/vendor/composer/ClassLoader.php

@@ -0,0 +1,579 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @see    https://www.php-fig.org/psr/psr-0/
+ * @see    https://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    /** @var \Closure(string):void */
+    private static $includeFile;
+
+    /** @var string|null */
+    private $vendorDir;
+
+    // PSR-4
+    /**
+     * @var array<string, array<string, int>>
+     */
+    private $prefixLengthsPsr4 = array();
+    /**
+     * @var array<string, list<string>>
+     */
+    private $prefixDirsPsr4 = array();
+    /**
+     * @var list<string>
+     */
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    /**
+     * List of PSR-0 prefixes
+     *
+     * Structured as array('F (first letter)' => array('Foo\Bar (full prefix)' => array('path', 'path2')))
+     *
+     * @var array<string, array<string, list<string>>>
+     */
+    private $prefixesPsr0 = array();
+    /**
+     * @var list<string>
+     */
+    private $fallbackDirsPsr0 = array();
+
+    /** @var bool */
+    private $useIncludePath = false;
+
+    /**
+     * @var array<string, string>
+     */
+    private $classMap = array();
+
+    /** @var bool */
+    private $classMapAuthoritative = false;
+
+    /**
+     * @var array<string, bool>
+     */
+    private $missingClasses = array();
+
+    /** @var string|null */
+    private $apcuPrefix;
+
+    /**
+     * @var array<string, self>
+     */
+    private static $registeredLoaders = array();
+
+    /**
+     * @param string|null $vendorDir
+     */
+    public function __construct($vendorDir = null)
+    {
+        $this->vendorDir = $vendorDir;
+        self::initializeIncludeClosure();
+    }
+
+    /**
+     * @return array<string, list<string>>
+     */
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
+        }
+
+        return array();
+    }
+
+    /**
+     * @return array<string, list<string>>
+     */
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    /**
+     * @return list<string>
+     */
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    /**
+     * @return list<string>
+     */
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    /**
+     * @return array<string, string> Array of classname => path
+     */
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array<string, string> $classMap Class to filename map
+     *
+     * @return void
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string              $prefix  The prefix
+     * @param list<string>|string $paths   The PSR-0 root directories
+     * @param bool                $prepend Whether to prepend the directories
+     *
+     * @return void
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        $paths = (array) $paths;
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string              $prefix  The prefix/namespace, with trailing '\\'
+     * @param list<string>|string $paths   The PSR-4 base directories
+     * @param bool                $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        $paths = (array) $paths;
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string              $prefix The prefix
+     * @param list<string>|string $paths  The PSR-0 base directories
+     *
+     * @return void
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string              $prefix The prefix/namespace, with trailing '\\'
+     * @param list<string>|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     *
+     * @return void
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     *
+     * @return void
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
+     *
+     * @param string|null $apcuPrefix
+     *
+     * @return void
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
+    }
+
+    /**
+     * The APCu prefix in use, or null if APCu caching is not enabled.
+     *
+     * @return string|null
+     */
+    public function getApcuPrefix()
+    {
+        return $this->apcuPrefix;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     *
+     * @return void
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+
+        if (null === $this->vendorDir) {
+            return;
+        }
+
+        if ($prepend) {
+            self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
+        } else {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+            self::$registeredLoaders[$this->vendorDir] = $this;
+        }
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     *
+     * @return void
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+
+        if (null !== $this->vendorDir) {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+        }
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return true|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            $includeFile = self::$includeFile;
+            $includeFile($file);
+
+            return true;
+        }
+
+        return null;
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
+            return false;
+        }
+        if (null !== $this->apcuPrefix) {
+            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
+            if ($hit) {
+                return $file;
+            }
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if (false === $file && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if (null !== $this->apcuPrefix) {
+            apcu_add($this->apcuPrefix.$class, $file);
+        }
+
+        if (false === $file) {
+            // Remember that this class does not exist.
+            $this->missingClasses[$class] = true;
+        }
+
+        return $file;
+    }
+
+    /**
+     * Returns the currently registered loaders keyed by their corresponding vendor directories.
+     *
+     * @return array<string, self>
+     */
+    public static function getRegisteredLoaders()
+    {
+        return self::$registeredLoaders;
+    }
+
+    /**
+     * @param  string       $class
+     * @param  string       $ext
+     * @return string|false
+     */
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            $subPath = $class;
+            while (false !== $lastPos = strrpos($subPath, '\\')) {
+                $subPath = substr($subPath, 0, $lastPos);
+                $search = $subPath . '\\';
+                if (isset($this->prefixDirsPsr4[$search])) {
+                    $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
+                    foreach ($this->prefixDirsPsr4[$search] as $dir) {
+                        if (file_exists($file = $dir . $pathEnd)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+
+        return false;
+    }
+
+    /**
+     * @return void
+     */
+    private static function initializeIncludeClosure()
+    {
+        if (self::$includeFile !== null) {
+            return;
+        }
+
+        /**
+         * Scope isolated include.
+         *
+         * Prevents access to $this/self from included files.
+         *
+         * @param  string $file
+         * @return void
+         */
+        self::$includeFile = \Closure::bind(static function($file) {
+            include $file;
+        }, null, null);
+    }
+}

wp-content/plugins/filebird/vendor/composer/InstalledVersions.php

@@ -0,0 +1,359 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer;
+
+use Composer\Autoload\ClassLoader;
+use Composer\Semver\VersionParser;
+
+/**
+ * This class is copied in every Composer installed project and available to all
+ *
+ * See also https://getcomposer.org/doc/07-runtime.md#installed-versions
+ *
+ * To require its presence, you can require `composer-runtime-api ^2.0`
+ *
+ * @final
+ */
+class InstalledVersions
+{
+    /**
+     * @var mixed[]|null
+     * @psalm-var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}|array{}|null
+     */
+    private static $installed;
+
+    /**
+     * @var bool|null
+     */
+    private static $canGetVendors;
+
+    /**
+     * @var array[]
+     * @psalm-var array<string, array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    private static $installedByVendor = array();
+
+    /**
+     * Returns a list of all package names which are present, either by being installed, replaced or provided
+     *
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackages()
+    {
+        $packages = array();
+        foreach (self::getInstalled() as $installed) {
+            $packages[] = array_keys($installed['versions']);
+        }
+
+        if (1 === \count($packages)) {
+            return $packages[0];
+        }
+
+        return array_keys(array_flip(\call_user_func_array('array_merge', $packages)));
+    }
+
+    /**
+     * Returns a list of all package names with a specific type e.g. 'library'
+     *
+     * @param  string   $type
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackagesByType($type)
+    {
+        $packagesByType = array();
+
+        foreach (self::getInstalled() as $installed) {
+            foreach ($installed['versions'] as $name => $package) {
+                if (isset($package['type']) && $package['type'] === $type) {
+                    $packagesByType[] = $name;
+                }
+            }
+        }
+
+        return $packagesByType;
+    }
+
+    /**
+     * Checks whether the given package is installed
+     *
+     * This also returns true if the package name is provided or replaced by another package
+     *
+     * @param  string $packageName
+     * @param  bool   $includeDevRequirements
+     * @return bool
+     */
+    public static function isInstalled($packageName, $includeDevRequirements = true)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (isset($installed['versions'][$packageName])) {
+                return $includeDevRequirements || !isset($installed['versions'][$packageName]['dev_requirement']) || $installed['versions'][$packageName]['dev_requirement'] === false;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Checks whether the given package satisfies a version constraint
+     *
+     * e.g. If you want to know whether version 2.3+ of package foo/bar is installed, you would call:
+     *
+     *   Composer\InstalledVersions::satisfies(new VersionParser, 'foo/bar', '^2.3')
+     *
+     * @param  VersionParser $parser      Install composer/semver to have access to this class and functionality
+     * @param  string        $packageName
+     * @param  string|null   $constraint  A version constraint to check for, if you pass one you have to make sure composer/semver is required by your package
+     * @return bool
+     */
+    public static function satisfies(VersionParser $parser, $packageName, $constraint)
+    {
+        $constraint = $parser->parseConstraints((string) $constraint);
+        $provided = $parser->parseConstraints(self::getVersionRanges($packageName));
+
+        return $provided->matches($constraint);
+    }
+
+    /**
+     * Returns a version constraint representing all the range(s) which are installed for a given package
+     *
+     * It is easier to use this via isInstalled() with the $constraint argument if you need to check
+     * whether a given version of a package is installed, and not just whether it exists
+     *
+     * @param  string $packageName
+     * @return string Version constraint usable with composer/semver
+     */
+    public static function getVersionRanges($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            $ranges = array();
+            if (isset($installed['versions'][$packageName]['pretty_version'])) {
+                $ranges[] = $installed['versions'][$packageName]['pretty_version'];
+            }
+            if (array_key_exists('aliases', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['aliases']);
+            }
+            if (array_key_exists('replaced', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['replaced']);
+            }
+            if (array_key_exists('provided', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['provided']);
+            }
+
+            return implode(' || ', $ranges);
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getPrettyVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['pretty_version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['pretty_version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as reference
+     */
+    public static function getReference($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['reference'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['reference'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as install path. Packages of type metapackages also have a null install path.
+     */
+    public static function getInstallPath($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            return isset($installed['versions'][$packageName]['install_path']) ? $installed['versions'][$packageName]['install_path'] : null;
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @return array
+     * @psalm-return array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}
+     */
+    public static function getRootPackage()
+    {
+        $installed = self::getInstalled();
+
+        return $installed[0]['root'];
+    }
+
+    /**
+     * Returns the raw installed.php data for custom implementations
+     *
+     * @deprecated Use getAllRawData() instead which returns all datasets for all autoloaders present in the process. getRawData only returns the first dataset loaded, which may not be what you expect.
+     * @return array[]
+     * @psalm-return array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}
+     */
+    public static function getRawData()
+    {
+        @trigger_error('getRawData only returns the first dataset loaded, which may not be what you expect. Use getAllRawData() instead which returns all datasets for all autoloaders present in the process.', E_USER_DEPRECATED);
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                self::$installed = include __DIR__ . '/installed.php';
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        return self::$installed;
+    }
+
+    /**
+     * Returns the raw data of all installed.php which are currently loaded for custom implementations
+     *
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    public static function getAllRawData()
+    {
+        return self::getInstalled();
+    }
+
+    /**
+     * Lets you reload the static array from another file
+     *
+     * This is only useful for complex integrations in which a project needs to use
+     * this class but then also needs to execute another project's autoloader in process,
+     * and wants to ensure both projects have access to their version of installed.php.
+     *
+     * A typical case would be PHPUnit, where it would need to make sure it reads all
+     * the data it needs from this class, then call reload() with
+     * `require $CWD/vendor/composer/installed.php` (or similar) as input to make sure
+     * the project in which it runs can then also use this class safely, without
+     * interference between PHPUnit's dependencies and the project's dependencies.
+     *
+     * @param  array[] $data A vendor/composer/installed.php data set
+     * @return void
+     *
+     * @psalm-param array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $data
+     */
+    public static function reload($data)
+    {
+        self::$installed = $data;
+        self::$installedByVendor = array();
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    private static function getInstalled()
+    {
+        if (null === self::$canGetVendors) {
+            self::$canGetVendors = method_exists('Composer\Autoload\ClassLoader', 'getRegisteredLoaders');
+        }
+
+        $installed = array();
+
+        if (self::$canGetVendors) {
+            foreach (ClassLoader::getRegisteredLoaders() as $vendorDir => $loader) {
+                if (isset(self::$installedByVendor[$vendorDir])) {
+                    $installed[] = self::$installedByVendor[$vendorDir];
+                } elseif (is_file($vendorDir.'/composer/installed.php')) {
+                    /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                    $required = require $vendorDir.'/composer/installed.php';
+                    $installed[] = self::$installedByVendor[$vendorDir] = $required;
+                    if (null === self::$installed && strtr($vendorDir.'/composer', '\\', '/') === strtr(__DIR__, '\\', '/')) {
+                        self::$installed = $installed[count($installed) - 1];
+                    }
+                }
+            }
+        }
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                $required = require __DIR__ . '/installed.php';
+                self::$installed = $required;
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        if (self::$installed !== array()) {
+            $installed[] = self::$installed;
+        }
+
+        return $installed;
+    }
+}

wp-content/plugins/filebird/vendor/composer/LICENSE

@@ -0,0 +1,21 @@
+
+Copyright (c) Nils Adermann, Jordi Boggiano
+
+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/filebird/vendor/composer/autoload_classmap.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
+);

wp-content/plugins/filebird/vendor/composer/autoload_namespaces.php

@@ -0,0 +1,9 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+);

wp-content/plugins/filebird/vendor/composer/autoload_psr4.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'enshrined\\svgSanitize\\' => array($vendorDir . '/enshrined/svg-sanitize/src'),
+);

wp-content/plugins/filebird/vendor/composer/autoload_real.php

@@ -0,0 +1,38 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit1a882ef483ffe247352bb74be1c0ccf9
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    /**
+     * @return \Composer\Autoload\ClassLoader
+     */
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        require __DIR__ . '/platform_check.php';
+
+        spl_autoload_register(array('ComposerAutoloaderInit1a882ef483ffe247352bb74be1c0ccf9', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
+        spl_autoload_unregister(array('ComposerAutoloaderInit1a882ef483ffe247352bb74be1c0ccf9', 'loadClassLoader'));
+
+        require __DIR__ . '/autoload_static.php';
+        call_user_func(\Composer\Autoload\ComposerStaticInit1a882ef483ffe247352bb74be1c0ccf9::getInitializer($loader));
+
+        $loader->register(true);
+
+        return $loader;
+    }
+}

wp-content/plugins/filebird/vendor/composer/autoload_static.php

@@ -0,0 +1,36 @@
+<?php
+
+// autoload_static.php @generated by Composer
+
+namespace Composer\Autoload;
+
+class ComposerStaticInit1a882ef483ffe247352bb74be1c0ccf9
+{
+    public static $prefixLengthsPsr4 = array (
+        'e' => 
+        array (
+            'enshrined\\svgSanitize\\' => 22,
+        ),
+    );
+
+    public static $prefixDirsPsr4 = array (
+        'enshrined\\svgSanitize\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/enshrined/svg-sanitize/src',
+        ),
+    );
+
+    public static $classMap = array (
+        'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',
+    );
+
+    public static function getInitializer(ClassLoader $loader)
+    {
+        return \Closure::bind(function () use ($loader) {
+            $loader->prefixLengthsPsr4 = ComposerStaticInit1a882ef483ffe247352bb74be1c0ccf9::$prefixLengthsPsr4;
+            $loader->prefixDirsPsr4 = ComposerStaticInit1a882ef483ffe247352bb74be1c0ccf9::$prefixDirsPsr4;
+            $loader->classMap = ComposerStaticInit1a882ef483ffe247352bb74be1c0ccf9::$classMap;
+
+        }, null, ClassLoader::class);
+    }
+}

wp-content/plugins/filebird/vendor/composer/installed.json

@@ -0,0 +1,54 @@
+{
+    "packages": [
+        {
+            "name": "enshrined/svg-sanitize",
+            "version": "0.15.4",
+            "version_normalized": "0.15.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/darylldoyle/svg-sanitizer.git",
+                "reference": "e50b83a2f1f296ca61394fe88fbfe3e896a84cf4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/darylldoyle/svg-sanitizer/zipball/e50b83a2f1f296ca61394fe88fbfe3e896a84cf4",
+                "reference": "e50b83a2f1f296ca61394fe88fbfe3e896a84cf4",
+                "shasum": ""
+            },
+            "require": {
+                "ext-dom": "*",
+                "ext-libxml": "*",
+                "php": "^7.0 || ^8.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^6.5 || ^8.5"
+            },
+            "time": "2022-02-21T09:13:59+00:00",
+            "type": "library",
+            "installation-source": "dist",
+            "autoload": {
+                "psr-4": {
+                    "enshrined\\svgSanitize\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GPL-2.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Daryll Doyle",
+                    "email": "daryll@enshrined.co.uk"
+                }
+            ],
+            "description": "An SVG sanitizer for PHP",
+            "support": {
+                "issues": "https://github.com/darylldoyle/svg-sanitizer/issues",
+                "source": "https://github.com/darylldoyle/svg-sanitizer/tree/0.15.4"
+            },
+            "install-path": "../enshrined/svg-sanitize"
+        }
+    ],
+    "dev": false,
+    "dev-package-names": []
+}

wp-content/plugins/filebird/vendor/composer/installed.php

@@ -0,0 +1,32 @@
+<?php return array(
+    'root' => array(
+        'name' => 'ninjateam/filebird',
+        'pretty_version' => 'dev-main',
+        'version' => 'dev-main',
+        'reference' => '85a744d84fc87c1cd749ac5aec9c012fb5aea351',
+        'type' => 'library',
+        'install_path' => __DIR__ . '/../../',
+        'aliases' => array(),
+        'dev' => false,
+    ),
+    'versions' => array(
+        'enshrined/svg-sanitize' => array(
+            'pretty_version' => '0.15.4',
+            'version' => '0.15.4.0',
+            'reference' => 'e50b83a2f1f296ca61394fe88fbfe3e896a84cf4',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../enshrined/svg-sanitize',
+            'aliases' => array(),
+            'dev_requirement' => false,
+        ),
+        'ninjateam/filebird' => array(
+            'pretty_version' => 'dev-main',
+            'version' => 'dev-main',
+            'reference' => '85a744d84fc87c1cd749ac5aec9c012fb5aea351',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../../',
+            'aliases' => array(),
+            'dev_requirement' => false,
+        ),
+    ),
+);

wp-content/plugins/filebird/vendor/composer/platform_check.php

@@ -0,0 +1,26 @@
+<?php
+
+// platform_check.php @generated by Composer
+
+$issues = array();
+
+if (!(PHP_VERSION_ID >= 70000)) {
+    $issues[] = 'Your Composer dependencies require a PHP version ">= 7.0.0". You are running ' . PHP_VERSION . '.';
+}
+
+if ($issues) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, 'Composer detected issues in your platform:' . PHP_EOL.PHP_EOL . implode(PHP_EOL, $issues) . PHP_EOL.PHP_EOL);
+        } elseif (!headers_sent()) {
+            echo 'Composer detected issues in your platform:' . PHP_EOL.PHP_EOL . str_replace('You are running '.PHP_VERSION.'.', '', implode(PHP_EOL, $issues)) . PHP_EOL.PHP_EOL;
+        }
+    }
+    trigger_error(
+        'Composer detected issues in your platform: ' . implode(' ', $issues),
+        E_USER_ERROR
+    );
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/LICENSE

@@ -0,0 +1,340 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
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+                     END OF TERMS AND CONDITIONS
+
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+
+    {description}
+    Copyright (C) {year}  {fullname}
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
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+
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+
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+
+  {signature of Ty Coon}, 1 April 1989
+  Ty Coon, President of Vice
+
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+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
+

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/README.md

@@ -0,0 +1,92 @@
+# svg-sanitizer
+
+[![Build Status](https://travis-ci.org/darylldoyle/svg-sanitizer.svg?branch=master)](https://travis-ci.org/darylldoyle/svg-sanitizer) [![Test Coverage](https://codeclimate.com/github/darylldoyle/svg-sanitizer/badges/coverage.svg)](https://codeclimate.com/github/darylldoyle/svg-sanitizer/coverage)
+
+This is my attempt at building a decent SVG sanitizer in PHP. The work is laregely borrowed from [DOMPurify](https://github.com/cure53/DOMPurify).
+
+## Installation
+
+Either require `enshrined/svg-sanitize` through composer or download the repo and include the old way!
+
+## Usage
+
+Using this is fairly easy. Create a new instance of `enshrined\svgSanitize\Sanitizer` and then call the `sanitize` whilst passing in your dirty SVG/XML
+
+**Basic Example**
+
+```php
+use enshrined\svgSanitize\Sanitizer;
+
+// Create a new sanitizer instance
+$sanitizer = new Sanitizer();
+
+// Load the dirty svg
+$dirtySVG = file_get_contents('filthy.svg');
+
+// Pass it to the sanitizer and get it back clean
+$cleanSVG = $sanitizer->sanitize($dirtySVG);
+
+// Now do what you want with your clean SVG/XML data
+
+```
+
+## Output
+
+This will either return a sanitized SVG/XML string or boolean `false` if XML parsing failed (usually due to a badly formatted file).
+
+## Options
+
+You may pass your own whitelist of tags and attributes by using the `Sanitizer::setAllowedTags` and `Sanitizer::setAllowedAttrs` methods respectively.
+
+These methods require that you implement the `enshrined\svgSanitize\data\TagInterface` or `enshrined\svgSanitize\data\AttributeInterface`.
+
+## Remove remote references 
+
+You have the option to remove attributes that reference remote files, this will stop HTTP leaks but will add an overhead to the sanitizer.
+
+This defaults to false, set to true to remove references.
+
+`$sanitizer->removeRemoteReferences(true);`
+
+## Viewing Sanitization Issues
+
+You may use the `getXmlIssues()` method to return an array of issues that occurred during sanitization.
+
+This may be useful for logging or providing feedback to the user on why an SVG was refused.
+
+`$issues = $sanitizer->getXmlIssues();`
+
+## Minification
+
+You can minify the XML output by calling `$sanitizer->minify(true);`.
+
+## Demo
+There is a demo available at: [http://svg.enshrined.co.uk/](http://svg.enshrined.co.uk/)
+
+## WordPress
+
+I've just released a WordPress plugin containing this code so you can sanitize your WordPress uploads. It's available from the WordPress plugin directory: [https://wordpress.org/plugins/safe-svg/](https://wordpress.org/plugins/safe-svg/)
+
+## Drupal
+
+[Michael Potter](https://github.com/heyMP) has kindly created a Drupal module for this library which is available at: [https://www.drupal.org/project/svg_sanitizer](https://www.drupal.org/project/svg_sanitizer)
+
+## TYPO3
+
+An integration for TYPO3 CMS of this library is available as composer package `t3g/svg-sanitizer` at [https://github.com/TYPO3GmbH/svg_sanitizer](https://github.com/TYPO3GmbH/svg_sanitizer)
+
+## Tests
+
+You can run these by running `vendor/bin/phpunit` from the base directory of this package.
+
+## Standalone scanning of files via CLI
+
+Thanks to the work by [gudmdharalds](https://github.com/gudmdharalds) there's now a standalone scanner that can be used via the CLI.
+
+Any errors will be output in JSON format. See [the PR](https://github.com/darylldoyle/svg-sanitizer/pull/25) for an example.
+
+Use it as follows: `php svg-scanner.php ~/svgs/myfile.svg`
+
+## To-Do
+
+More extensive testing for the SVGs/XML would be lovely, I'll try and add these soon. If you feel like doing it for me, please do and make a PR!

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/composer.json

@@ -0,0 +1,33 @@
+{
+    "name": "enshrined/svg-sanitize",
+    "description": "An SVG sanitizer for PHP",
+    "license": "GPL-2.0-or-later",
+    "authors": [
+        {
+            "name": "Daryll Doyle",
+            "email": "daryll@enshrined.co.uk"
+        }
+    ],
+    "scripts": {
+        "test": "phpunit --no-coverage",
+        "test:coverage": "phpunit"
+    },
+    "autoload": {
+        "psr-4": {
+            "enshrined\\svgSanitize\\": "src"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "enshrined\\svgSanitize\\Tests\\": "tests"
+        }
+    },
+    "require": {
+        "ext-dom": "*",
+        "ext-libxml": "*",
+        "php": "^7.0 || ^8.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^6.5 || ^8.5"
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/ElementReference/Resolver.php

@@ -0,0 +1,169 @@
+<?php
+namespace enshrined\svgSanitize\ElementReference;
+
+use enshrined\svgSanitize\data\XPath;
+use enshrined\svgSanitize\Exceptions\NestingException;
+use enshrined\svgSanitize\Helper;
+
+class Resolver
+{
+    /**
+     * @var XPath
+     */
+    protected $xPath;
+
+    /**
+     * @var Subject[]
+     */
+    protected $subjects = [];
+
+    /**
+     * @var array DOMElement[]
+     */
+    protected $elementsToRemove = [];
+
+    /**
+     * @var int
+     */
+    protected $useNestingLimit;
+
+    public function __construct(XPath $xPath, $useNestingLimit)
+    {
+        $this->xPath = $xPath;
+        $this->useNestingLimit = $useNestingLimit;
+    }
+
+    public function collect()
+    {
+        $this->collectIdentifiedElements();
+        $this->processReferences();
+        $this->determineInvalidSubjects();
+    }
+
+    /**
+     * Resolves one subject by element.
+     *
+     * @param \DOMElement $element
+     * @param bool $considerChildren Whether to search in Subject's children as well
+     * @return Subject|null
+     */
+    public function findByElement(\DOMElement $element, $considerChildren = false)
+    {
+        foreach ($this->subjects as $subject) {
+            if (
+                $element === $subject->getElement()
+                || $considerChildren && Helper::isElementContainedIn($element, $subject->getElement())
+            ) {
+                return $subject;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Resolves subjects (plural!) by element id - in theory malformed
+     * DOM might have same ids assigned to different elements and leaving
+     * it to client/browser implementation which element to actually use.
+     *
+     * @param string $elementId
+     * @return Subject[]
+     */
+    public function findByElementId($elementId)
+    {
+        return array_filter(
+            $this->subjects,
+            function (Subject $subject) use ($elementId) {
+                return $elementId === $subject->getElementId();
+            }
+        );
+    }
+
+    /**
+     * Collects elements having `id` attribute (those that can be referenced).
+     */
+    protected function collectIdentifiedElements()
+    {
+        /** @var \DOMNodeList|\DOMElement[] $elements */
+        $elements = $this->xPath->query('//*[@id]');
+        foreach ($elements as $element) {
+            $this->subjects[$element->getAttribute('id')] = new Subject($element, $this->useNestingLimit);
+        }
+    }
+
+    /**
+     * Processes references from and to elements having `id` attribute concerning
+     * their occurrence in `<use ... xlink:href="#identifier">` statements.
+     */
+    protected function processReferences()
+    {
+        $useNodeName = $this->xPath->createNodeName('use');
+        foreach ($this->subjects as $subject) {
+            $useElements = $this->xPath->query(
+                $useNodeName . '[@href or @xlink:href]',
+                $subject->getElement()
+            );
+
+            /** @var \DOMElement $useElement */
+            foreach ($useElements as $useElement) {
+                $useId = Helper::extractIdReferenceFromHref(
+                    Helper::getElementHref($useElement)
+                );
+                if ($useId === null || !isset($this->subjects[$useId])) {
+                    continue;
+                }
+                $subject->addUse($this->subjects[$useId]);
+                $this->subjects[$useId]->addUsedIn($subject);
+            }
+        }
+    }
+
+    /**
+     * Determines and tags infinite loops.
+     */
+    protected function determineInvalidSubjects()
+    {
+        foreach ($this->subjects as $subject) {
+
+            if (in_array($subject->getElement(), $this->elementsToRemove)) {
+                continue;
+            }
+
+            $useId = Helper::extractIdReferenceFromHref(
+                Helper::getElementHref($subject->getElement())
+            );
+
+            try {
+                if ($useId === $subject->getElementId()) {
+                    $this->markSubjectAsInvalid($subject);
+                } elseif ($subject->hasInfiniteLoop()) {
+                    $this->markSubjectAsInvalid($subject);
+                }
+            } catch (NestingException $e) {
+                $this->elementsToRemove[] = $e->getElement();
+                $this->markSubjectAsInvalid($subject);
+            }
+        }
+    }
+
+    /**
+     * Get all the elements that caused a nesting exception.
+     *
+     * @return array
+     */
+    public function getElementsToRemove() {
+        return $this->elementsToRemove;
+    }
+
+    /**
+     * The Subject is invalid for some reason, therefore we should
+     * remove it and all it's child usages.
+     *
+     * @param Subject $subject
+     */
+    protected function markSubjectAsInvalid(Subject $subject) {
+        $this->elementsToRemove = array_merge(
+            $this->elementsToRemove,
+            $subject->clearInternalAndGetAffectedElements()
+        );
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/ElementReference/Subject.php

@@ -0,0 +1,153 @@
+<?php
+namespace enshrined\svgSanitize\ElementReference;
+
+class Subject
+{
+    /**
+     * @var \DOMElement
+     */
+    protected $element;
+
+    /**
+     * @var Usage[]
+     */
+    protected $useCollection = [];
+
+    /**
+     * @var Usage[]
+     */
+    protected $usedInCollection = [];
+
+    /**
+     * @var int
+     */
+    protected $useNestingLimit;
+
+    /**
+     * Subject constructor.
+     *
+     * @param \DOMElement $element
+     * @param int         $useNestingLimit
+     */
+    public function __construct(\DOMElement $element, $useNestingLimit)
+    {
+        $this->element = $element;
+        $this->useNestingLimit = $useNestingLimit;
+    }
+
+    /**
+     * @return \DOMElement
+     */
+    public function getElement()
+    {
+        return $this->element;
+    }
+
+    /**
+     * @return string
+     */
+    public function getElementId()
+    {
+        return $this->element->getAttribute('id');
+    }
+
+    /**
+     * @param array $subjects   Previously processed subjects
+     * @param int   $level      The current level of nesting.
+     * @return bool
+     * @throws \enshrined\svgSanitize\Exceptions\NestingException
+     */
+    public function hasInfiniteLoop(array $subjects = [], $level = 1)
+    {
+        if ($level > $this->useNestingLimit) {
+            throw new \enshrined\svgSanitize\Exceptions\NestingException('Nesting level too high, aborting', 1570713498, null, $this->getElement());
+        }
+
+        if (in_array($this, $subjects, true)) {
+            return true;
+        }
+        $subjects[] = $this;
+        foreach ($this->useCollection as $usage) {
+            if ($usage->getSubject()->hasInfiniteLoop($subjects, $level + 1)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * @param Subject $subject
+     */
+    public function addUse(Subject $subject)
+    {
+        if ($subject === $this) {
+            throw new \LogicException('Cannot add self usage', 1570713416);
+        }
+        $identifier = $subject->getElementId();
+        if (isset($this->useCollection[$identifier])) {
+            $this->useCollection[$identifier]->increment();
+            return;
+        }
+        $this->useCollection[$identifier] = new Usage($subject);
+    }
+
+    /**
+     * @param Subject $subject
+     */
+    public function addUsedIn(Subject $subject)
+    {
+        if ($subject === $this) {
+            throw new \LogicException('Cannot add self as usage', 1570713417);
+        }
+        $identifier = $subject->getElementId();
+        if (isset($this->usedInCollection[$identifier])) {
+            $this->usedInCollection[$identifier]->increment();
+            return;
+        }
+        $this->usedInCollection[$identifier] = new Usage($subject);
+    }
+
+    /**
+     * @param bool $accumulated
+     * @return int
+     */
+    public function countUse($accumulated = false)
+    {
+        $count = 0;
+        foreach ($this->useCollection as $use) {
+            $useCount = $use->getSubject()->countUse();
+            $count += $use->getCount() * ($accumulated ? 1 + $useCount : max(1, $useCount));
+        }
+        return $count;
+    }
+
+    /**
+     * @return int
+     */
+    public function countUsedIn()
+    {
+        $count = 0;
+        foreach ($this->usedInCollection as $usedIn) {
+            $count += $usedIn->getCount() * max(1, $usedIn->getSubject()->countUsedIn());
+        }
+        return $count;
+    }
+
+    /**
+     * Clear the internal arrays (to free up memory as they can get big)
+     * and return all the child usages DOMElement's
+     *
+     * @return array
+     */
+    public function clearInternalAndGetAffectedElements()
+    {
+        $elements = array_map(function(Usage $usage) {
+            return $usage->getSubject()->getElement();
+        }, $this->useCollection);
+
+        $this->usedInCollection = [];
+        $this->useCollection = [];
+
+        return $elements;
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/ElementReference/Usage.php

@@ -0,0 +1,49 @@
+<?php
+namespace enshrined\svgSanitize\ElementReference;
+
+class Usage
+{
+    /**
+     * @var Subject
+     */
+    protected $subject;
+
+    /**
+     * @var int
+     */
+    protected $count;
+
+    /**
+     * @param Subject $subject
+     * @param int $count
+     */
+    public function __construct(Subject $subject, $count = 1)
+    {
+        $this->subject = $subject;
+        $this->count = (int)$count;
+    }
+
+    /**
+     * @param int $by
+     */
+    public function increment($by = 1)
+    {
+        $this->count += (int)$by;
+    }
+
+    /**
+     * @return Subject
+     */
+    public function getSubject()
+    {
+        return $this->subject;
+    }
+
+    /**
+     * @return int
+     */
+    public function getCount()
+    {
+        return $this->count;
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/Exceptions/NestingException.php

@@ -0,0 +1,36 @@
+<?php
+namespace enshrined\svgSanitize\Exceptions;
+
+use Exception;
+
+class NestingException extends \Exception
+{
+    /**
+     * @var \DOMElement
+     */
+    protected $element;
+
+    /**
+     * NestingException constructor.
+     *
+     * @param string           $message
+     * @param int              $code
+     * @param Exception|null   $previous
+     * @param \DOMElement|null $element
+     */
+    public function __construct($message = "", $code = 0, Exception $previous = null, \DOMElement $element = null)
+    {
+        $this->element = $element;
+        parent::__construct($message, $code, $previous);
+    }
+
+    /**
+     * Get the element that caused the exception.
+     *
+     * @return \DOMElement
+     */
+    public function getElement()
+    {
+        return $this->element;
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/Helper.php

@@ -0,0 +1,53 @@
+<?php
+namespace enshrined\svgSanitize;
+
+class Helper
+{
+    /**
+     * @param \DOMElement $element
+     * @return string|null
+     */
+    public static function getElementHref(\DOMElement $element)
+    {
+        if ($element->hasAttribute('href')) {
+            return $element->getAttribute('href');
+        }
+        if ($element->hasAttributeNS('http://www.w3.org/1999/xlink', 'href')) {
+            return $element->getAttributeNS('http://www.w3.org/1999/xlink', 'href');
+        }
+        return null;
+    }
+
+    /**
+     * @param string $href
+     * @return string|null
+     */
+    public static function extractIdReferenceFromHref($href)
+    {
+        if (!is_string($href) || strpos($href, '#') !== 0) {
+            return null;
+        }
+        return substr($href, 1);
+    }
+
+    /**
+     * @param \DOMElement $needle
+     * @param \DOMElement $haystack
+     * @return bool
+     */
+    public static function isElementContainedIn(\DOMElement $needle, \DOMElement $haystack)
+    {
+        if ($needle === $haystack) {
+            return true;
+        }
+        foreach ($haystack->childNodes as $childNode) {
+            if (!$childNode instanceof \DOMElement) {
+                continue;
+            }
+            if (self::isElementContainedIn($needle, $childNode)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/Sanitizer.php

@@ -0,0 +1,669 @@
+<?php
+namespace enshrined\svgSanitize;
+
+use enshrined\svgSanitize\data\AllowedAttributes;
+use enshrined\svgSanitize\data\AllowedTags;
+use enshrined\svgSanitize\data\AttributeInterface;
+use enshrined\svgSanitize\data\TagInterface;
+use enshrined\svgSanitize\data\XPath;
+use enshrined\svgSanitize\ElementReference\Resolver;
+
+/**
+ * Class Sanitizer
+ *
+ * @package enshrined\svgSanitize
+ */
+class Sanitizer
+{
+
+    /**
+     * @var \DOMDocument
+     */
+    protected $xmlDocument;
+
+    /**
+     * @var array
+     */
+    protected $allowedTags;
+
+    /**
+     * @var array
+     */
+    protected $allowedAttrs;
+
+    /**
+     * @var
+     */
+    protected $xmlLoaderValue;
+
+    /**
+     * @var bool
+     */
+    protected $minifyXML = false;
+
+    /**
+     * @var bool
+     */
+    protected $removeRemoteReferences = false;
+
+    /**
+     * @var int
+     */
+    protected $useThreshold = 1000;
+
+    /**
+     * @var bool
+     */
+    protected $removeXMLTag = false;
+
+    /**
+     * @var int
+     */
+    protected $xmlOptions = LIBXML_NOEMPTYTAG;
+
+    /**
+     * @var array
+     */
+    protected $xmlIssues = array();
+
+    /**
+     * @var Resolver
+     */
+    protected $elementReferenceResolver;
+
+    /**
+     * @var int
+     */
+    protected $useNestingLimit = 15;
+
+    /**
+     *
+     */
+    function __construct()
+    {
+        // Load default tags/attributes
+        $this->allowedAttrs = array_map('strtolower', AllowedAttributes::getAttributes());
+        $this->allowedTags = array_map('strtolower', AllowedTags::getTags());
+    }
+
+    /**
+     * Set up the DOMDocument
+     */
+    protected function resetInternal()
+    {
+        $this->xmlDocument = new \DOMDocument();
+        $this->xmlDocument->preserveWhiteSpace = false;
+        $this->xmlDocument->strictErrorChecking = false;
+        $this->xmlDocument->formatOutput = !$this->minifyXML;
+    }
+
+    /**
+     * Set XML options to use when saving XML
+     * See: DOMDocument::saveXML
+     *
+     * @param int  $xmlOptions
+     */
+    public function setXMLOptions($xmlOptions)
+    {
+        $this->xmlOptions = $xmlOptions;
+    }
+
+    /**
+     * Get XML options to use when saving XML
+     * See: DOMDocument::saveXML
+     *
+     * @return int
+     */
+    public function getXMLOptions()
+    {
+        return $this->xmlOptions;
+    }
+
+    /**
+     * Get the array of allowed tags
+     *
+     * @return array
+     */
+    public function getAllowedTags()
+    {
+        return $this->allowedTags;
+    }
+
+    /**
+     * Set custom allowed tags
+     *
+     * @param TagInterface $allowedTags
+     */
+    public function setAllowedTags(TagInterface $allowedTags)
+    {
+        $this->allowedTags = array_map('strtolower', $allowedTags::getTags());
+    }
+
+    /**
+     * Get the array of allowed attributes
+     *
+     * @return array
+     */
+    public function getAllowedAttrs()
+    {
+        return $this->allowedAttrs;
+    }
+
+    /**
+     * Set custom allowed attributes
+     *
+     * @param AttributeInterface $allowedAttrs
+     */
+    public function setAllowedAttrs(AttributeInterface $allowedAttrs)
+    {
+        $this->allowedAttrs = array_map('strtolower', $allowedAttrs::getAttributes());
+    }
+
+    /**
+     * Should we remove references to remote files?
+     *
+     * @param bool $removeRemoteRefs
+     */
+    public function removeRemoteReferences($removeRemoteRefs = false)
+    {
+        $this->removeRemoteReferences = $removeRemoteRefs;
+    }
+
+    /**
+     * Get XML issues.
+     *
+     * @return array
+     */
+    public function getXmlIssues() {
+        return $this->xmlIssues;
+    }
+
+
+    /**
+     * Sanitize the passed string
+     *
+     * @param string $dirty
+     * @return string
+     */
+    public function sanitize($dirty)
+    {
+        // Don't run on an empty string
+        if (empty($dirty)) {
+            return '';
+        }
+
+        // Strip php tags
+        $dirty = preg_replace('/<\?(=|php)(.+?)\?>/i', '', $dirty);
+
+        $this->resetInternal();
+        $this->setUpBefore();
+
+        $loaded = $this->xmlDocument->loadXML($dirty);
+
+        // If we couldn't parse the XML then we go no further. Reset and return false
+        if (!$loaded) {
+            $this->resetAfter();
+            return false;
+        }
+
+        // Pre-process all identified elements
+        $xPath = new XPath($this->xmlDocument);
+        $this->elementReferenceResolver = new Resolver($xPath, $this->useNestingLimit);
+        $this->elementReferenceResolver->collect();
+        $elementsToRemove = $this->elementReferenceResolver->getElementsToRemove();
+
+        // Start the cleaning proccess
+        $this->startClean($this->xmlDocument->childNodes, $elementsToRemove);
+
+        // Save cleaned XML to a variable
+        if ($this->removeXMLTag) {
+            $clean = $this->xmlDocument->saveXML($this->xmlDocument->documentElement, $this->xmlOptions);
+        } else {
+            $clean = $this->xmlDocument->saveXML($this->xmlDocument, $this->xmlOptions);
+        }
+
+        $this->resetAfter();
+
+        // Remove any extra whitespaces when minifying
+        if ($this->minifyXML) {
+            $clean = preg_replace('/\s+/', ' ', $clean);
+        }
+
+        // Return result
+        return $clean;
+    }
+
+    /**
+     * Set up libXML before we start
+     */
+    protected function setUpBefore()
+    {
+        // This function has been deprecated in PHP 8.0 because in libxml 2.9.0, external entity loading is
+        // disabled by default, so this function is no longer needed to protect against XXE attacks.
+        if (\LIBXML_VERSION < 20900) {
+            // Turn off the entity loader
+            $this->xmlLoaderValue = libxml_disable_entity_loader(true);
+        }
+
+        // Suppress the errors because we don't really have to worry about formation before cleansing
+        libxml_use_internal_errors(true);
+
+        // Reset array of altered XML
+        $this->xmlIssues = array();
+    }
+
+    /**
+     * Reset the class after use
+     */
+    protected function resetAfter()
+    {
+        // This function has been deprecated in PHP 8.0 because in libxml 2.9.0, external entity loading is
+        // disabled by default, so this function is no longer needed to protect against XXE attacks.
+        if (\LIBXML_VERSION < 20900) {
+            // Reset the entity loader
+            libxml_disable_entity_loader($this->xmlLoaderValue);
+        }
+    }
+
+    /**
+     * Start the cleaning with tags, then we move onto attributes and hrefs later
+     *
+     * @param \DOMNodeList $elements
+     * @param array        $elementsToRemove
+     */
+    protected function startClean(\DOMNodeList $elements, array $elementsToRemove)
+    {
+        // loop through all elements
+        // we do this backwards so we don't skip anything if we delete a node
+        // see comments at: http://php.net/manual/en/class.domnamednodemap.php
+        for ($i = $elements->length - 1; $i >= 0; $i--) {
+            /** @var \DOMElement $currentElement */
+            $currentElement = $elements->item($i);
+
+            /**
+             * If the element has exceeded the nesting limit, we should remove it.
+             *
+             * As it's only <use> elements that cause us issues with nesting DOS attacks
+             * we should check what the element is before removing it. For now we'll only
+             * remove <use> elements.
+             */
+            if (in_array($currentElement, $elementsToRemove) && 'use' === $currentElement->nodeName) {
+                $currentElement->parentNode->removeChild($currentElement);
+                $this->xmlIssues[] = array(
+                    'message' => 'Invalid \'' . $currentElement->tagName . '\'',
+                    'line'    => $currentElement->getLineNo(),
+                );
+                continue;
+            }
+
+            if ($currentElement instanceof \DOMElement) {
+                // If the tag isn't in the whitelist, remove it and continue with next iteration
+                if (!in_array(strtolower($currentElement->tagName), $this->allowedTags)) {
+                    $currentElement->parentNode->removeChild($currentElement);
+                    $this->xmlIssues[] = array(
+                        'message' => 'Suspicious tag \'' . $currentElement->tagName . '\'',
+                        'line' => $currentElement->getLineNo(),
+                    );
+                    continue;
+                }
+
+                $this->cleanHrefs( $currentElement );
+
+                $this->cleanXlinkHrefs( $currentElement );
+
+                $this->cleanAttributesOnWhitelist($currentElement);
+
+                if (strtolower($currentElement->tagName) === 'use') {
+                    if ($this->isUseTagDirty($currentElement)
+                        || $this->isUseTagExceedingThreshold($currentElement)
+                    ) {
+                        $currentElement->parentNode->removeChild($currentElement);
+                        $this->xmlIssues[] = array(
+                            'message' => 'Suspicious \'' . $currentElement->tagName . '\'',
+                            'line' => $currentElement->getLineNo(),
+                        );
+                        continue;
+                    }
+                }
+
+                // Strip out font elements that will break out of foreign content.
+                if (strtolower($currentElement->tagName) === 'font') {
+                    $breaksOutOfForeignContent = false;
+                    for ($x = $currentElement->attributes->length - 1; $x >= 0; $x--) {
+                        // get attribute name
+                        $attrName = $currentElement->attributes->item( $x )->name;
+
+                        if (in_array(strtolower($attrName), ['face', 'color', 'size'])) {
+                            $breaksOutOfForeignContent = true;
+                        }
+                    }
+
+                    if ($breaksOutOfForeignContent) {
+                        $currentElement->parentNode->removeChild($currentElement);
+                        $this->xmlIssues[] = array(
+                            'message' => 'Suspicious tag \'' . $currentElement->tagName . '\'',
+                            'line' => $currentElement->getLineNo(),
+                        );
+                        continue;
+                    }
+                }
+            }
+
+            $this->cleanUnsafeNodes($currentElement);
+
+            if ($currentElement->hasChildNodes()) {
+                $this->startClean($currentElement->childNodes, $elementsToRemove);
+            }
+        }
+    }
+
+    /**
+     * Only allow attributes that are on the whitelist
+     *
+     * @param \DOMElement $element
+     */
+    protected function cleanAttributesOnWhitelist(\DOMElement $element)
+    {
+        for ($x = $element->attributes->length - 1; $x >= 0; $x--) {
+            // get attribute name
+            $attrName = $element->attributes->item($x)->name;
+
+            // Remove attribute if not in whitelist
+            if (!in_array(strtolower($attrName), $this->allowedAttrs) && !$this->isAriaAttribute(strtolower($attrName)) && !$this->isDataAttribute(strtolower($attrName))) {
+
+                $element->removeAttribute($attrName);
+                $this->xmlIssues[] = array(
+                    'message' => 'Suspicious attribute \'' . $attrName . '\'',
+                    'line' => $element->getLineNo(),
+                );
+            }
+
+            /**
+             * This is used for when a namespace isn't imported properly.
+             * Such as xlink:href when the xlink namespace isn't imported.
+             * We have to do this as the link is still ran in this case.
+             */
+            if (false !== strpos($attrName, 'href')) {
+                $href = $element->getAttribute($attrName);
+                if (false === $this->isHrefSafeValue($href)) {
+                    $element->removeAttribute($attrName);
+                    $this->xmlIssues[] = array(
+                        'message' => 'Suspicious attribute \'href\'',
+                        'line'    => $element->getLineNo(),
+                    );
+                }
+            }
+
+            // Do we want to strip remote references?
+            if($this->removeRemoteReferences) {
+                // Remove attribute if it has a remote reference
+                if (isset($element->attributes->item($x)->value) && $this->hasRemoteReference($element->attributes->item($x)->value)) {
+                    $element->removeAttribute($attrName);
+                    $this->xmlIssues[] = array(
+                        'message' => 'Suspicious attribute \'' . $attrName . '\'',
+                        'line' => $element->getLineNo(),
+                    );
+                }
+            }
+        }
+    }
+
+    /**
+     * Clean the xlink:hrefs of script and data embeds
+     *
+     * @param \DOMElement $element
+     */
+    protected function cleanXlinkHrefs(\DOMElement $element)
+    {
+        $xlinks = $element->getAttributeNS('http://www.w3.org/1999/xlink', 'href');
+        if (false === $this->isHrefSafeValue($xlinks)) {
+            $element->removeAttributeNS( 'http://www.w3.org/1999/xlink', 'href' );
+            $this->xmlIssues[] = array(
+                'message' => 'Suspicious attribute \'href\'',
+                'line' => $element->getLineNo(),
+            );
+        }
+    }
+
+    /**
+     * Clean the hrefs of script and data embeds
+     *
+     * @param \DOMElement $element
+     */
+    protected function cleanHrefs(\DOMElement $element)
+    {
+        $href = $element->getAttribute('href');
+        if (false === $this->isHrefSafeValue($href)) {
+            $element->removeAttribute('href');
+            $this->xmlIssues[] = array(
+                'message' => 'Suspicious attribute \'href\'',
+                'line' => $element->getLineNo(),
+            );
+        }
+    }
+
+    /**
+     * Only allow whitelisted starts to be within the href.
+     *
+     * This will stop scripts etc from being passed through, with or without attempting to hide bypasses.
+     * This stops the need for us to use a complicated script regex.
+     *
+     * @param $value
+     * @return bool
+     */
+    protected function isHrefSafeValue($value) {
+
+        // Allow empty values
+        if (empty($value)) {
+            return true;
+        }
+
+        // Allow fragment identifiers.
+        if ('#' === substr($value, 0, 1)) {
+            return true;
+        }
+
+        // Allow relative URIs.
+        if ('/' === substr($value, 0, 1)) {
+            return true;
+        }
+
+        // Allow HTTPS domains.
+        if ('https://' === substr($value, 0, 8)) {
+            return true;
+        }
+
+        // Allow HTTP domains.
+        if ('http://' === substr($value, 0, 7)) {
+            return true;
+        }
+
+        // Allow known data URIs.
+        if (in_array(substr($value, 0, 14), array(
+            'data:image/png', // PNG
+            'data:image/gif', // GIF
+            'data:image/jpg', // JPG
+            'data:image/jpe', // JPEG
+            'data:image/pjp', // PJPEG
+        ))) {
+            return true;
+        }
+
+        // Allow known short data URIs.
+        if (in_array(substr($value, 0, 12), array(
+            'data:img/png', // PNG
+            'data:img/gif', // GIF
+            'data:img/jpg', // JPG
+            'data:img/jpe', // JPEG
+            'data:img/pjp', // PJPEG
+        ))) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Removes non-printable ASCII characters from string & trims it
+     *
+     * @param string $value
+     * @return bool
+     */
+    protected function removeNonPrintableCharacters($value)
+    {
+        return trim(preg_replace('/[^ -~]/xu','',$value));
+    }
+
+    /**
+     * Does this attribute value have a remote reference?
+     *
+     * @param $value
+     * @return bool
+     */
+    protected function hasRemoteReference($value)
+    {
+        $value = $this->removeNonPrintableCharacters($value);
+
+        $wrapped_in_url = preg_match('~^url\(\s*[\'"]\s*(.*)\s*[\'"]\s*\)$~xi', $value, $match);
+        if (!$wrapped_in_url){
+            return false;
+        }
+
+        $value = trim($match[1], '\'"');
+
+        return preg_match('~^((https?|ftp|file):)?//~xi', $value);
+    }
+
+    /**
+     * Should we minify the output?
+     *
+     * @param bool $shouldMinify
+     */
+    public function minify($shouldMinify = false)
+    {
+        $this->minifyXML = (bool) $shouldMinify;
+    }
+
+    /**
+     * Should we remove the XML tag in the header?
+     *
+     * @param bool $removeXMLTag
+     */
+    public function removeXMLTag($removeXMLTag = false)
+    {
+        $this->removeXMLTag = (bool) $removeXMLTag;
+    }
+
+    /**
+     * Whether `<use ... xlink:href="#identifier">` elements shall be
+     * removed in case expansion would exceed this threshold.
+     *
+     * @param int $useThreshold
+     */
+    public function useThreshold($useThreshold = 1000)
+    {
+        $this->useThreshold = (int)$useThreshold;
+    }
+
+    /**
+     * Check to see if an attribute is an aria attribute or not
+     *
+     * @param $attributeName
+     *
+     * @return bool
+     */
+    protected function isAriaAttribute($attributeName)
+    {
+        return strpos($attributeName, 'aria-') === 0;
+    }
+
+    /**
+     * Check to see if an attribute is an data attribute or not
+     *
+     * @param $attributeName
+     *
+     * @return bool
+     */
+    protected function isDataAttribute($attributeName)
+    {
+        return strpos($attributeName, 'data-') === 0;
+    }
+
+    /**
+     * Make sure our use tag is only referencing internal resources
+     *
+     * @param \DOMElement $element
+     * @return bool
+     */
+    protected function isUseTagDirty(\DOMElement $element)
+    {
+        $href = Helper::getElementHref($element);
+        return $href && strpos($href, '#') !== 0;
+    }
+
+    /**
+     * Determines whether `<use ... xlink:href="#identifier">` is expanded
+     * recursively in order to create DoS scenarios. The amount of a actually
+     * used element needs to be below `$this->useThreshold`.
+     *
+     * @param \DOMElement $element
+     * @return bool
+     */
+    protected function isUseTagExceedingThreshold(\DOMElement $element)
+    {
+        if ($this->useThreshold <= 0) {
+            return false;
+        }
+        $useId = Helper::extractIdReferenceFromHref(
+            Helper::getElementHref($element)
+        );
+        if ($useId === null) {
+            return false;
+        }
+        foreach ($this->elementReferenceResolver->findByElementId($useId) as $subject) {
+            if ($subject->countUse() >= $this->useThreshold) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Set the nesting limit for <use> tags.
+     *
+     * @param $limit
+     */
+    public function setUseNestingLimit($limit)
+    {
+        $this->useNestingLimit = (int) $limit;
+    }
+
+    /**
+     * Remove nodes that are either invalid or malformed.
+     *
+     * @param \DOMNode $currentElement The current element.
+     */
+    protected function cleanUnsafeNodes(\DOMNode $currentElement) {
+        // Replace CDATA node with encoded text node
+        if ($currentElement instanceof \DOMCdataSection) {
+            $textNode = $currentElement->ownerDocument->createTextNode($currentElement->nodeValue);
+            $currentElement->parentNode->replaceChild($textNode, $currentElement);
+        // If the element doesn't have a tagname, remove it and continue with next iteration
+        } elseif (!$currentElement instanceof \DOMElement && !$currentElement instanceof \DOMText) {
+            $currentElement->parentNode->removeChild($currentElement);
+            $this->xmlIssues[] = array(
+                'message' => 'Suspicious node \'' . $currentElement->nodeName . '\'',
+                'line' => $currentElement->getLineNo(),
+            );
+            return;
+        }
+
+        if ( $currentElement->childNodes && $currentElement->childNodes->length > 0 ) {
+            for ($j = $currentElement->childNodes->length - 1; $j >= 0; $j--) {
+                /** @var \DOMElement $childElement */
+                $childElement = $currentElement->childNodes->item($j);
+                $this->cleanUnsafeNodes($childElement);
+            }
+        }
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/data/AllowedAttributes.php

@@ -0,0 +1,355 @@
+<?php
+namespace enshrined\svgSanitize\data;
+
+/**
+ * Class AllowedAttributes
+ *
+ * @package enshrined\svgSanitize\data
+ */
+class AllowedAttributes implements AttributeInterface
+{
+
+    /**
+     * Returns an array of attributes
+     *
+     * @return array
+     */
+    public static function getAttributes()
+    {
+        return array(
+            // HTML
+            'about',
+            'accept',
+            'action',
+            'align',
+            'alt',
+            'autocomplete',
+            'background',
+            'bgcolor',
+            'border',
+            'cellpadding',
+            'cellspacing',
+            'checked',
+            'cite',
+            'class',
+            'clear',
+            'color',
+            'cols',
+            'colspan',
+            'coords',
+            'crossorigin',
+            'datetime',
+            'default',
+            'dir',
+            'disabled',
+            'download',
+            'enctype',
+            'encoding',
+            'face',
+            'for',
+            'headers',
+            'height',
+            'hidden',
+            'high',
+            'href',
+            'hreflang',
+            'id',
+            'integrity',
+            'ismap',
+            'label',
+            'lang',
+            'list',
+            'loop',
+            'low',
+            'max',
+            'maxlength',
+            'media',
+            'method',
+            'min',
+            'multiple',
+            'name',
+            'noshade',
+            'novalidate',
+            'nowrap',
+            'open',
+            'optimum',
+            'pattern',
+            'placeholder',
+            'poster',
+            'preload',
+            'pubdate',
+            'radiogroup',
+            'readonly',
+            'rel',
+            'required',
+            'rev',
+            'reversed',
+            'role',
+            'rows',
+            'rowspan',
+            'spellcheck',
+            'scope',
+            'selected',
+            'shape',
+            'size',
+            'sizes',
+            'span',
+            'srclang',
+            'start',
+            'src',
+            'srcset',
+            'step',
+            'style',
+            'summary',
+            'tabindex',
+            'title',
+            'type',
+            'usemap',
+            'valign',
+            'value',
+            'version',
+            'width',
+            'xmlns',
+
+            // SVG
+            'accent-height',
+            'accumulate',
+            'additivive',
+            'alignment-baseline',
+            'ascent',
+            'attributename',
+            'attributetype',
+            'azimuth',
+            'basefrequency',
+            'baseline-shift',
+            'begin',
+            'bias',
+            'by',
+            'class',
+            'clip',
+            'clip-path',
+            'clip-rule',
+            'color',
+            'color-interpolation',
+            'color-interpolation-filters',
+            'color-profile',
+            'color-rendering',
+            'cx',
+            'cy',
+            'd',
+            'dx',
+            'dy',
+            'diffuseconstant',
+            'direction',
+            'display',
+            'divisor',
+            'dur',
+            'edgemode',
+            'elevation',
+            'end',
+            'fill',
+            'fill-opacity',
+            'fill-rule',
+            'filter',
+            'filterUnits',
+            'flood-color',
+            'flood-opacity',
+            'font-family',
+            'font-size',
+            'font-size-adjust',
+            'font-stretch',
+            'font-style',
+            'font-variant',
+            'font-weight',
+            'fx',
+            'fy',
+            'g1',
+            'g2',
+            'glyph-name',
+            'glyphref',
+            'gradientunits',
+            'gradienttransform',
+            'height',
+            'href',
+            'id',
+            'image-rendering',
+            'in',
+            'in2',
+            'k',
+            'k1',
+            'k2',
+            'k3',
+            'k4',
+            'kerning',
+            'keypoints',
+            'keysplines',
+            'keytimes',
+            'lang',
+            'lengthadjust',
+            'letter-spacing',
+            'kernelmatrix',
+            'kernelunitlength',
+            'lighting-color',
+            'local',
+            'marker-end',
+            'marker-mid',
+            'marker-start',
+            'markerheight',
+            'markerunits',
+            'markerwidth',
+            'maskcontentunits',
+            'maskunits',
+            'max',
+            'mask',
+            'media',
+            'method',
+            'mode',
+            'min',
+            'name',
+            'numoctaves',
+            'offset',
+            'operator',
+            'opacity',
+            'order',
+            'orient',
+            'orientation',
+            'origin',
+            'overflow',
+            'paint-order',
+            'path',
+            'pathlength',
+            'patterncontentunits',
+            'patterntransform',
+            'patternunits',
+            'points',
+            'preservealpha',
+            'preserveaspectratio',
+            'r',
+            'rx',
+            'ry',
+            'radius',
+            'refx',
+            'refy',
+            'repeatcount',
+            'repeatdur',
+            'restart',
+            'result',
+            'rotate',
+            'scale',
+            'seed',
+            'shape-rendering',
+            'specularconstant',
+            'specularexponent',
+            'spreadmethod',
+            'stddeviation',
+            'stitchtiles',
+            'stop-color',
+            'stop-opacity',
+            'stroke-dasharray',
+            'stroke-dashoffset',
+            'stroke-linecap',
+            'stroke-linejoin',
+            'stroke-miterlimit',
+            'stroke-opacity',
+            'stroke',
+            'stroke-width',
+            'style',
+            'surfacescale',
+            'tabindex',
+            'targetx',
+            'targety',
+            'transform',
+            'text-anchor',
+            'text-decoration',
+            'text-rendering',
+            'textlength',
+            'type',
+            'u1',
+            'u2',
+            'unicode',
+            'values',
+            'viewbox',
+            'visibility',
+            'vert-adv-y',
+            'vert-origin-x',
+            'vert-origin-y',
+            'width',
+            'word-spacing',
+            'wrap',
+            'writing-mode',
+            'xchannelselector',
+            'ychannelselector',
+            'x',
+            'x1',
+            'x2',
+            'xmlns',
+            'y',
+            'y1',
+            'y2',
+            'z',
+            'zoomandpan',
+
+            // MathML
+            'accent',
+            'accentunder',
+            'align',
+            'bevelled',
+            'close',
+            'columnsalign',
+            'columnlines',
+            'columnspan',
+            'denomalign',
+            'depth',
+            'dir',
+            'display',
+            'displaystyle',
+            'fence',
+            'frame',
+            'height',
+            'href',
+            'id',
+            'largeop',
+            'length',
+            'linethickness',
+            'lspace',
+            'lquote',
+            'mathbackground',
+            'mathcolor',
+            'mathsize',
+            'mathvariant',
+            'maxsize',
+            'minsize',
+            'movablelimits',
+            'notation',
+            'numalign',
+            'open',
+            'rowalign',
+            'rowlines',
+            'rowspacing',
+            'rowspan',
+            'rspace',
+            'rquote',
+            'scriptlevel',
+            'scriptminsize',
+            'scriptsizemultiplier',
+            'selection',
+            'separator',
+            'separators',
+            'slope',
+            'stretchy',
+            'subscriptshift',
+            'supscriptshift',
+            'symmetric',
+            'voffset',
+            'width',
+            'xmlns',
+
+            // XML
+            'xlink:href',
+            'xml:id',
+            'xlink:title',
+            'xml:space',
+            'xmlns:xlink',
+        );
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/data/AllowedTags.php

@@ -0,0 +1,196 @@
+<?php
+namespace enshrined\svgSanitize\data;
+
+/**
+ * Class AllowedTags
+ *
+ * @package enshrined\svgSanitize\data
+ */
+class AllowedTags implements TagInterface
+{
+
+    /**
+     * Returns an array of tags
+     *
+     * @return array
+     */
+    public static function getTags()
+    {
+        return array (
+            // HTML
+            'a',
+            'abbr',
+            'acronym',
+            'address',
+            'area',
+            'article',
+            'aside',
+            'audio',
+            'bdi',
+            'bdo',
+            'blink',
+            'button',
+            'canvas',
+            'caption',
+            'cite',
+            'col',
+            'colgroup',
+            'content',
+            'data',
+            'datalist',
+            'decorator',
+            'del',
+            'details',
+            'dfn',
+            'dir',
+            'div',
+            'element',
+            'fieldset',
+            'figcaption',
+            'figure',
+            'font',
+            'footer',
+            'form',
+            'header',
+            'hgroup',
+            'html',
+            'image',
+            'input',
+            'ins',
+            'kbd',
+            'label',
+            'legend',
+            'li',
+            'main',
+            'map',
+            'mark',
+            'marquee',
+            'meter',
+            'nav',
+            'optgroup',
+            'option',
+            'output',
+            'progress',
+            'q',
+            'rp',
+            'rt',
+            'samp',
+            'section',
+            'select',
+            'shadow',
+            'source',
+            'spacer',
+            'style',
+            'summary',
+            'template',
+            'textarea',
+            'time',
+            'track',
+            'video',
+            'wbr',
+
+            // SVG
+            'svg',
+            'altglyph',
+            'altglyphdef',
+            'altglyphitem',
+            'animatecolor',
+            'animatemotion',
+            'animatetransform',
+            'circle',
+            'clippath',
+            'defs',
+            'desc',
+            'ellipse',
+            'filter',
+            'font',
+            'g',
+            'glyph',
+            'glyphref',
+            'hkern',
+            'image',
+            'line',
+            'lineargradient',
+            'marker',
+            'mask',
+            'metadata',
+            'mpath',
+            'path',
+            'pattern',
+            'polygon',
+            'polyline',
+            'radialgradient',
+            'rect',
+            'stop',
+            'switch',
+            'symbol',
+            'text',
+            'textpath',
+            'title',
+            'tref',
+            'tspan',
+            'use',
+            'view',
+            'vkern',
+
+            // SVG Filters
+            'feBlend',
+            'feColorMatrix',
+            'feComponentTransfer',
+            'feComposite',
+            'feConvolveMatrix',
+            'feDiffuseLighting',
+            'feDisplacementMap',
+            'feDistantLight',
+            'feFlood',
+            'feFuncA',
+            'feFuncB',
+            'feFuncG',
+            'feFuncR',
+            'feGaussianBlur',
+            'feMerge',
+            'feMergeNode',
+            'feMorphology',
+            'feOffset',
+            'fePointLight',
+            'feSpecularLighting',
+            'feSpotLight',
+            'feTile',
+            'feTurbulence',
+
+            //MathML
+            'math',
+            'menclose',
+            'merror',
+            'mfenced',
+            'mfrac',
+            'mglyph',
+            'mi',
+            'mlabeledtr',
+            'mmuliscripts',
+            'mn',
+            'mo',
+            'mover',
+            'mpadded',
+            'mphantom',
+            'mroot',
+            'mrow',
+            'ms',
+            'mpspace',
+            'msqrt',
+            'mystyle',
+            'msub',
+            'msup',
+            'msubsup',
+            'mtable',
+            'mtd',
+            'mtext',
+            'mtr',
+            'munder',
+            'munderover',
+
+            //text
+            '#text'
+        );
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/data/AttributeInterface.php

@@ -0,0 +1,18 @@
+<?php
+namespace enshrined\svgSanitize\data;
+
+/**
+ * Class AttributeInterface
+ *
+ * @package enshrined\svgSanitize\data
+ */
+interface AttributeInterface
+{
+
+    /**
+     * Returns an array of attributes
+     *
+     * @return array
+     */
+    public static function getAttributes();
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/data/TagInterface.php

@@ -0,0 +1,19 @@
+<?php
+namespace enshrined\svgSanitize\data;
+
+/**
+ * Interface TagInterface
+ *
+ * @package enshrined\svgSanitize\tags
+ */
+interface TagInterface
+{
+
+    /**
+     * Returns an array of tags
+     *
+     * @return array
+     */
+    public static function getTags();
+
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/data/XPath.php

@@ -0,0 +1,64 @@
+<?php
+namespace enshrined\svgSanitize\data;
+
+class XPath extends \DOMXPath
+{
+    const DEFAULT_NAMESPACE_PREFIX = 'svg';
+
+    /**
+     * @var string
+     */
+    protected $defaultNamespaceURI;
+
+    public function __construct(\DOMDocument $doc)
+    {
+        parent::__construct($doc);
+        $this->handleDefaultNamespace();
+    }
+
+    /**
+     * @param string $nodeName
+     * @return string
+     */
+    public function createNodeName($nodeName)
+    {
+        if (empty($this->defaultNamespaceURI)) {
+            return $nodeName;
+        }
+        return self::DEFAULT_NAMESPACE_PREFIX . ':' . $nodeName;
+    }
+
+    protected function handleDefaultNamespace()
+    {
+        $rootElements = $this->getRootElements();
+
+        if (count($rootElements) !== 1) {
+            throw new \LogicException(
+                sprintf('Got %d svg elements, expected exactly one', count($rootElements)),
+                1570870568
+            );
+        }
+        $this->defaultNamespaceURI = (string)$rootElements[0]->namespaceURI;
+
+        if ($this->defaultNamespaceURI !== '') {
+            $this->registerNamespace(self::DEFAULT_NAMESPACE_PREFIX, $this->defaultNamespaceURI);
+        }
+    }
+
+    /**
+     * @return \DOMElement[]
+     */
+    protected function getRootElements()
+    {
+        $rootElements = [];
+        $elements = $this->document->getElementsByTagName('svg');
+        /** @var \DOMElement $element */
+        foreach ($elements as $element) {
+            if ($element->parentNode !== $this->document) {
+                continue;
+            }
+            $rootElements[] = $element;
+        }
+        return $rootElements;
+    }
+}

wp-content/plugins/filebird/vendor/enshrined/svg-sanitize/src/svg-scanner.php

@@ -0,0 +1,192 @@
+#!/usr/bin/env php
+<?php
+
+/*
+ * Simple program that uses svg-sanitizer
+ * to find issues in files specified on the
+ * command line, and prints a JSON output with
+ * the issues found on exit.
+ */
+
+require_once( __DIR__ . '/data/AttributeInterface.php' );
+require_once( __DIR__ . '/data/TagInterface.php' );
+require_once( __DIR__ . '/data/AllowedAttributes.php' );
+require_once( __DIR__ . '/data/AllowedTags.php' );
+require_once( __DIR__ . '/data/XPath.php' );
+require_once( __DIR__ . '/ElementReference/Resolver.php' );
+require_once( __DIR__ . '/ElementReference/Subject.php' );
+require_once( __DIR__ . '/ElementReference/Usage.php' );
+require_once( __DIR__ . '/Exceptions/NestingException.php' );
+require_once( __DIR__ . '/Helper.php' );
+require_once( __DIR__ . '/Sanitizer.php' );
+
+/*
+ * Print array as JSON and then
+ * exit program with a particular
+ * exit-code.
+ */
+
+function sysexit(
+	$results,
+	$status
+) {
+	echo json_encode(
+		$results,
+		JSON_PRETTY_PRINT
+	);
+
+	exit( $status );
+}
+
+
+/*
+ * Main part begins
+ */
+
+global $argv;
+
+/*
+ * Set up results array, to
+ * be printed on exit.
+ */
+$results = array(
+	'totals' => array(
+		'errors' => 0,
+	),
+
+	'files' => array(
+	),
+);
+
+
+/*
+ * Catch files to scan from $argv.
+ */
+
+$files_to_scan = $argv;
+unset( $files_to_scan[0] );
+
+$files_to_scan = array_values(
+	$files_to_scan
+);
+
+/*
+ * Catch no file specified.
+ */
+
+if ( empty( $files_to_scan ) ) {
+	$results['totals']['errors']++;
+	$results['messages'] = array(
+		array( 'No files to scan specified' ),
+	);
+
+	sysexit(
+		$results,
+		1
+	);
+}
+
+/*
+ * Initialize the SVG scanner.
+ *
+ * Make sure to allow custom attributes,
+ * and to remove remote references.
+ */
+$sanitizer = new enshrined\svgSanitize\Sanitizer();
+
+$sanitizer->removeRemoteReferences( true );
+
+/*
+ * Scan each file specified to be scanned.
+ */
+
+foreach( $files_to_scan as $file_name ) {
+	/*
+	 * Read SVG file.
+	 */
+	$svg_file = @file_get_contents( $file_name );
+
+	/*
+	 * If not found, report that and continue.
+	 */
+	if ( false === $svg_file ) {
+		$results['totals']['errors']++;
+
+		$results['files'][ $file_name ][] = array(
+			'errors' => 1,
+			'messages' => array(
+				array(
+					'message' => 'File specified could not be read (' . $file_name . ')',
+					'line' => null,
+				),
+			),
+		);
+
+		continue;
+	}
+
+	/*
+	 * Sanitize file and get issues found.
+	 */
+	$sanitize_status = $sanitizer->sanitize( $svg_file );
+
+	$xml_issues = $sanitizer->getXmlIssues();
+
+	/*
+	 * If we find no issues, simply note that.
+	 */
+	if ( empty( $xml_issues ) && ( false !== $sanitize_status ) ) {
+		$results['files'][ $file_name ] = array(
+			'errors' => 0,
+			'messages' => array()
+		);
+	}
+
+	/*
+	 * Could not sanitize the file.
+	 */
+	else if (
+		( '' === $sanitize_status ) ||
+		( false === $sanitize_status )
+	) {
+		$results['totals']['errors']++;
+
+		$results['files'][ $file_name ] = array(
+			'errors' => 1,
+			'messages' => array(
+				array(
+					'message' => 'Unable to sanitize file \'' . $file_name . '\'' ,
+					'line' => null,
+				)
+			),
+		);
+	}
+
+	/*
+	 * If we find issues, note it and update statistics.
+	 */
+
+	else {
+		$results['totals']['errors'] += count( $xml_issues );
+
+		$results['files'][ $file_name ] = array(
+			'errors' => count( $xml_issues ),
+			'messages' => $xml_issues,
+		);
+	}
+
+	unset( $svg_file );
+	unset( $xml_issues );
+	unset( $sanitize_status );
+}
+
+
+/*
+ * Exit with a status
+ * that reflects what issues
+ * we found.
+ */
+sysexit(
+	$results,
+	( $results['totals']['errors'] === 0 ? 0 : 1 )
+);