N°2435.1 Portal: Split portal composer.json in 2

- Autoloader for portal files in the itop-portal-base module
- Dependencies moved to root composer.json
- Add autoloader for /core and /application content

composer.json

@@ -1,4 +1,6 @@
 {
+  "type": "project",
+  "license": "AGPLv3",
   "require": {
     "php": ">=5.6.0",
     "ext-soap": "*",
@@ -6,7 +8,19 @@
     "ext-mysqli": "*",
     "ext-dom": "*",
     "ext-iconv": "*",
-    "ext-gd": "*"
+    "ext-gd": "*",
+    "ext-ctype": "*",
+
+    "symfony/console": "3.4.*",
+    "symfony/dotenv": "3.4.*",
+    "symfony/framework-bundle": "3.4.*",
+    "symfony/twig-bundle": "3.4.*",
+    "symfony/yaml": "3.4.*",
+    "symfony/polyfill-php70": "1.*"
+  },
+  "require-dev": {
+    "symfony/stopwatch": "3.4.*",
+    "symfony/web-profiler-bundle": "3.4.*"
   },
   "suggest": {
     "ext-libsodium": "Required to use the AttributeEncryptedString.",
@@ -19,6 +33,26 @@
   "config": {
     "platform": {
       "php": "5.6.0"
+    },
+    "vendor-dir": "lib",
+    "preferred-install": {
+      "*": "dist"
+    },
+    "sort-packages": true
+  },
+  "autoload": {
+    "classmap": [
+      "core",
+      "application"
+    ]
+  },
+  "conflict": {
+    "symfony/symfony": "*"
+  },
+  "extra": {
+    "symfony": {
+      "allow-contrib": false,
+      "require": "3.4.*"
     }
   }
 }

datamodels/2.x/itop-portal-base/module.itop-portal-base.php

@@ -1,5 +1,6 @@
 <?php
 
+/** @noinspection PhpUnhandledExceptionInspection */
 SetupWebPage::AddModule(
 	__FILE__, // Path to the current file, all other file names are relative to the directory containing this file
 	'itop-portal-base/2.7.0', array(
@@ -13,14 +14,15 @@ SetupWebPage::AddModule(
 	'visible' => true,
 	// Components
 	'datamodel' => array(
+		// Note: The autoloader is there instead of portal/config/bootstrap.php in order to be available for other modules with a dependency on this one.
+		// eg. If a module has a class extending \Combodo\iTop\Portal\Controller\AbstractController, it needs to find it even if the portal kernel is not loaded.
+		'portal/vendor/autoload.php',
 		'model.itop-portal-base.php',
 	),
 	'webservice' => array(
 	//'webservices.itop-portal-base.php',
 	),
 	'dictionary' => array(
-		'fr.dict.itop-portal-base.php',
-	//'de.dict.itop-portal-base.php',
 	),
 	'data.struct' => array(
 	//'data.struct.itop-portal-base.xml',

datamodels/2.x/itop-portal-base/portal/.gitignore

@@ -1,9 +1,4 @@
-
-###> symfony/framework-bundle ###
 /.env.local
 /.env.local.php
 /.env.*.local
 /public/bundles/
-/var/
-/vendor/
-###< symfony/framework-bundle ###

datamodels/2.x/itop-portal-base/portal/composer.json

@@ -1,52 +1,13 @@
 {
-	"type": "project",
 	"license": "AGPLv3",
-	"require": {
-		"php": ">=5.6.0",
-		"ext-ctype": "*",
-		"ext-iconv": "*",
-		"symfony/console": "3.4.*",
-		"symfony/dotenv": "3.4.*",
-		"symfony/framework-bundle": "3.4.*",
-		"symfony/twig-bundle": "3.4.*",
-		"symfony/yaml": "3.4.*",
-		"symfony/polyfill-php70": "1.*"
-	},
-	"require-dev": {
-		"symfony/stopwatch": "3.4.*",
-		"symfony/web-profiler-bundle": "3.4.*"
-	},
-	"config": {
-		"vendor-dir": "../../../../lib/composer-vendor",
-		"preferred-install": {
-			"*": "dist"
-		},
-		"sort-packages": true,
-		"platform": {
-			"php": "5.6.0"
-		}
-	},
 	"autoload": {
 		"psr-4": {
 			"Combodo\\iTop\\Portal\\": "src/"
-		},
-		"classmap": [
-			"../../../../core",
-			"../../../../application"
-		]
+		}
 	},
 	"autoload-dev": {
 		"psr-4": {
 			"Combodo\\iTop\\Portal\\Tests\\": "tests/"
 		}
-	},
-	"conflict": {
-		"symfony/symfony": "*"
-	},
-	"extra": {
-		"symfony": {
-			"allow-contrib": false,
-			"require": "3.4.*"
-		}
 	}
 }

datamodels/2.x/itop-portal-base/portal/config/bootstrap.php

@@ -26,9 +26,10 @@
 use Symfony\Component\Debug\Debug;
 use Symfony\Component\Dotenv\Dotenv;
 
-require_once APPROOT.'/lib/composer-vendor/autoload.php';
+// Global autoloader (portal autoloader is already required through module.itop-portal-base.php)
+require_once APPROOT.'/lib/autoload.php';
 
-// Load current environment if necessary
+// Load current environment if necessary (typically from CLI as the app is not started yet)
 if (!defined('MODULESROOT'))
 {
 	if (file_exists(__DIR__.'/../../../../approot.inc.php'))

datamodels/2.x/itop-portal-base/portal/symfony.lock

@@ -1,135 +0,0 @@
-{
-    "psr/cache": {
-        "version": "1.0.1"
-    },
-    "psr/container": {
-        "version": "1.0.0"
-    },
-    "psr/log": {
-        "version": "1.1.0"
-    },
-    "psr/simple-cache": {
-        "version": "1.0.1"
-    },
-    "symfony/cache": {
-        "version": "v3.4.27"
-    },
-    "symfony/class-loader": {
-        "version": "v3.4.27"
-    },
-    "symfony/config": {
-        "version": "v3.4.27"
-    },
-    "symfony/console": {
-        "version": "3.3",
-        "recipe": {
-            "repo": "github.com/symfony/recipes",
-            "branch": "master",
-            "version": "3.3",
-            "ref": "482d233eb8de91ebd042992077bbd5838858890c"
-        },
-        "files": [
-            "./bin/console",
-            "./config/bootstrap.php"
-        ]
-    },
-    "symfony/debug": {
-        "version": "v3.4.27"
-    },
-    "symfony/dependency-injection": {
-        "version": "v3.4.27"
-    },
-    "symfony/dotenv": {
-        "version": "v3.4.27"
-    },
-    "symfony/event-dispatcher": {
-        "version": "v3.4.27"
-    },
-    "symfony/filesystem": {
-        "version": "v3.4.27"
-    },
-    "symfony/finder": {
-        "version": "v3.4.27"
-    },
-    "symfony/flex": {
-        "version": "1.0",
-        "recipe": {
-            "repo": "github.com/symfony/recipes",
-            "branch": "master",
-            "version": "1.0",
-            "ref": "dc3fc2e0334a4137c47cfd5a3ececc601fa61a0b"
-        },
-        "files": [
-            "./.env"
-        ]
-    },
-    "symfony/framework-bundle": {
-        "version": "3.3",
-        "recipe": {
-            "repo": "github.com/symfony/recipes",
-            "branch": "master",
-            "version": "3.3",
-            "ref": "0a20c266736ca946b4ebb088c767f0cb340e41c7"
-        },
-        "files": [
-            "./config/bootstrap.php",
-            "./config/packages/cache.yaml",
-            "./config/packages/framework.yaml",
-            "./config/packages/test/framework.yaml",
-            "./config/services.yaml",
-            "./public/index.php",
-            "./src/Controller/.gitignore",
-            "./src/Kernel.php"
-        ]
-    },
-    "symfony/http-foundation": {
-        "version": "v3.4.27"
-    },
-    "symfony/http-kernel": {
-        "version": "v3.4.27"
-    },
-    "symfony/polyfill-apcu": {
-        "version": "v1.11.0"
-    },
-    "symfony/polyfill-mbstring": {
-        "version": "v1.11.0"
-    },
-    "symfony/routing": {
-        "version": "3.3",
-        "recipe": {
-            "repo": "github.com/symfony/recipes",
-            "branch": "master",
-            "version": "3.3",
-            "ref": "4d36f55d8edd7bd88b730754c2d3f3dfc2cd316b"
-        },
-        "files": [
-            "./config/packages/dev/routing.yaml",
-            "./config/packages/routing.yaml",
-            "./config/packages/test/routing.yaml",
-            "./config/routes.yaml"
-        ]
-    },
-    "symfony/twig-bridge": {
-        "version": "v3.4.28"
-    },
-    "symfony/twig-bundle": {
-        "version": "3.3",
-        "recipe": {
-            "repo": "github.com/symfony/recipes",
-            "branch": "master",
-            "version": "3.3",
-            "ref": "369b5b29dc52b2c190002825ae7ec24ab6f962dd"
-        },
-        "files": [
-            "./config/packages/twig.yaml",
-            "./config/routes/dev/twig.yaml",
-            "./templates/base.html.twig"
-        ]
-    },
-    "symfony/yaml": {
-        "version": "v3.4.27"
-    },
-    "twig/twig": {
-        "version": "v2.11.3"
-    }
-}

datamodels/2.x/itop-portal-base/portal/vendor/autoload.php

@@ -0,0 +1,7 @@
+<?php
+
+// autoload.php @generated by Composer
+
+require_once __DIR__ . '/composer/autoload_real.php';
+
+return ComposerAutoloaderInitdf408f3f8ea034d298269cdf7647358b::getLoader();

datamodels/2.x/itop-portal-base/portal/vendor/composer/ClassLoader.php

@@ -0,0 +1,445 @@
+<?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    http://www.php-fig.org/psr/psr-0/
+ * @see    http://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    // PSR-4
+    private $prefixLengthsPsr4 = array();
+    private $prefixDirsPsr4 = array();
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    private $prefixesPsr0 = array();
+    private $fallbackDirsPsr0 = array();
+
+    private $useIncludePath = false;
+    private $classMap = array();
+    private $classMapAuthoritative = false;
+    private $missingClasses = array();
+    private $apcuPrefix;
+
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
+        }
+
+        return array();
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array $classMap Class to filename map
+     */
+    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 array|string $paths   The PSR-0 root directories
+     * @param bool         $prepend Whether to prepend the directories
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $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 array|string $paths   The PSR-4 base directories
+     * @param bool         $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($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] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $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 array|string $paths  The PSR-0 base directories
+     */
+    public function set($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 array|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setPsr4($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 $useIncludePath
+     */
+    public function setUseIncludePath($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 $classMapAuthoritative
+     */
+    public function setClassMapAuthoritative($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 $apcuPrefix
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $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 $prepend Whether to prepend the autoloader or not
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return bool|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+    }
+
+    /**
+     * 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 $file;
+    }
+
+    private function findFileWithExtension($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;
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ */
+function includeFile($file)
+{
+    include $file;
+}

datamodels/2.x/itop-portal-base/portal/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.
+

datamodels/2.x/itop-portal-base/portal/vendor/composer/autoload_classmap.php

@@ -0,0 +1,57 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Combodo\\iTop\\Portal\\Brick\\AbstractBrick' => $baseDir . '/src/Brick/AbstractBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\AggregatePageBrick' => $baseDir . '/src/Brick/AggregatePageBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\BrickCollection' => $baseDir . '/src/Brick/BrickCollection.php',
+    'Combodo\\iTop\\Portal\\Brick\\BrickNotFoundException' => $baseDir . '/src/Brick/BrickNotFoundException.php',
+    'Combodo\\iTop\\Portal\\Brick\\BrowseBrick' => $baseDir . '/src/Brick/BrowseBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\CreateBrick' => $baseDir . '/src/Brick/CreateBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\FilterBrick' => $baseDir . '/src/Brick/FilterBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\ManageBrick' => $baseDir . '/src/Brick/ManageBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\PortalBrick' => $baseDir . '/src/Brick/PortalBrick.php',
+    'Combodo\\iTop\\Portal\\Brick\\PropertyNotFoundException' => $baseDir . '/src/Brick/PropertyNotFoundException.php',
+    'Combodo\\iTop\\Portal\\Brick\\UserProfileBrick' => $baseDir . '/src/Brick/UserProfileBrick.php',
+    'Combodo\\iTop\\Portal\\Controller\\AbstractController' => $baseDir . '/src/Controller/AbstractController.php',
+    'Combodo\\iTop\\Portal\\Controller\\AggregatePageBrickController' => $baseDir . '/src/Controller/AggregatePageBrickController.class.inc.php',
+    'Combodo\\iTop\\Portal\\Controller\\BrickController' => $baseDir . '/src/Controller/BrickController.php',
+    'Combodo\\iTop\\Portal\\Controller\\BrowseBrickController' => $baseDir . '/src/Controller/BrowseBrickController.php',
+    'Combodo\\iTop\\Portal\\Controller\\CreateBrickController' => $baseDir . '/src/Controller/CreateBrickController.php',
+    'Combodo\\iTop\\Portal\\Controller\\DefaultController' => $baseDir . '/src/Controller/DefaultController.php',
+    'Combodo\\iTop\\Portal\\Controller\\ManageBrickController' => $baseDir . '/src/Controller/ManageBrickController.php',
+    'Combodo\\iTop\\Portal\\Controller\\ObjectController' => $baseDir . '/src/Controller/ObjectController.php',
+    'Combodo\\iTop\\Portal\\Controller\\UserProfileBrickController' => $baseDir . '/src/Controller/UserProfileBrickController.php',
+    'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\AbstractConfiguration' => $baseDir . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/AbstractConfiguration.php',
+    'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\Basic' => $baseDir . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/Basic.php',
+    'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\Forms' => $baseDir . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/Forms.php',
+    'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\Lists' => $baseDir . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/Lists.php',
+    'Combodo\\iTop\\Portal\\EventListener\\ApplicationContextSetUrlMakerClass' => $baseDir . '/src/EventListener/ApplicationContextSetUrlMakerClass.php',
+    'Combodo\\iTop\\Portal\\EventListener\\UserProvider' => $baseDir . '/src/EventListener/UserProvider.php',
+    'Combodo\\iTop\\Portal\\Form\\ObjectFormManager' => $baseDir . '/src/Form/ObjectFormManager.php',
+    'Combodo\\iTop\\Portal\\Form\\PasswordFormManager' => $baseDir . '/src/Form/PasswordFormManager.php',
+    'Combodo\\iTop\\Portal\\Form\\PreferencesFormManager' => $baseDir . '/src/Form/PreferencesFormManager.php',
+    'Combodo\\iTop\\Portal\\Helper\\ApplicationHelper' => $baseDir . '/src/Helper/ApplicationHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\BrickControllerHelper' => $baseDir . '/src/Helper/BrickControllerHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\BrowseBrickHelper' => $baseDir . '/src/Helper/BrowseBrickHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\ContextManipulatorHelper' => $baseDir . '/src/Helper/ContextManipulatorHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\LifecycleValidatorHelper' => $baseDir . '/src/Helper/LifecycleValidatorHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\ObjectFormHandlerHelper' => $baseDir . '/src/Helper/ObjectFormHandlerHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\RequestManipulatorHelper' => $baseDir . '/src/Helper/RequestManipulatorHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\ScopeValidatorHelper' => $baseDir . '/src/Helper/ScopeValidatorHelper.php',
+    'Combodo\\iTop\\Portal\\Helper\\SecurityHelper' => $baseDir . '/src/Helper/SecurityHelper.php',
+    'Combodo\\iTop\\Portal\\Kernel' => $baseDir . '/src/Kernel.php',
+    'Combodo\\iTop\\Portal\\Routing\\ItopExtensionsExtraRoutes' => $baseDir . '/src/Routing/ItopExtensionsExtraRoutes.php',
+    'Combodo\\iTop\\Portal\\Routing\\UrlGenerator' => $baseDir . '/src/Routing/UrlGenerator.php',
+    'Combodo\\iTop\\Portal\\Twig\\AppExtension' => $baseDir . '/src/Twig/AppExtension.php',
+    'Combodo\\iTop\\Portal\\Twig\\AppVariable' => $baseDir . '/src/Twig/AppVariable.php',
+    'Combodo\\iTop\\Portal\\UrlMaker\\AbstractPortalUrlMaker' => $baseDir . '/src/UrlMaker/AbstractPortalUrlMaker.php',
+    'Combodo\\iTop\\Portal\\VariableAccessor\\AbstractStringVariableAccessor' => $baseDir . '/src/VariableAccessor/AbstractStringVariableAccessor.php',
+    'Combodo\\iTop\\Portal\\VariableAccessor\\AbstractVariableAccessor' => $baseDir . '/src/VariableAccessor/AbstractVariableAccessor.php',
+    'Combodo\\iTop\\Portal\\VariableAccessor\\CombodoCurrentContactPhotoUrl' => $baseDir . '/src/VariableAccessor/CombodoCurrentContactPhotoUrl.php',
+    'Combodo\\iTop\\Portal\\VariableAccessor\\CombodoPortalInstanceConf' => $baseDir . '/src/VariableAccessor/CombodoPortalInstanceConf.php',
+);

datamodels/2.x/itop-portal-base/portal/vendor/composer/autoload_namespaces.php

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

datamodels/2.x/itop-portal-base/portal/vendor/composer/autoload_psr4.php

@@ -0,0 +1,11 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Combodo\\iTop\\Portal\\Tests\\' => array($baseDir . '/tests'),
+    'Combodo\\iTop\\Portal\\' => array($baseDir . '/src'),
+);

datamodels/2.x/itop-portal-base/portal/vendor/composer/autoload_real.php

@@ -0,0 +1,43 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInitdf408f3f8ea034d298269cdf7647358b
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        spl_autoload_register(array('ComposerAutoloaderInitdf408f3f8ea034d298269cdf7647358b', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
+        spl_autoload_unregister(array('ComposerAutoloaderInitdf408f3f8ea034d298269cdf7647358b', 'loadClassLoader'));
+
+        $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
+        if ($useStaticLoader) {
+            require_once __DIR__ . '/autoload_static.php';
+
+            call_user_func(\Composer\Autoload\ComposerStaticInitdf408f3f8ea034d298269cdf7647358b::getInitializer($loader));
+        } else {
+            $classMap = require __DIR__ . '/autoload_classmap.php';
+            if ($classMap) {
+                $loader->addClassMap($classMap);
+            }
+        }
+
+        $loader->setClassMapAuthoritative(true);
+        $loader->register(true);
+
+        return $loader;
+    }
+}

datamodels/2.x/itop-portal-base/portal/vendor/composer/autoload_static.php

@@ -0,0 +1,88 @@
+<?php
+
+// autoload_static.php @generated by Composer
+
+namespace Composer\Autoload;
+
+class ComposerStaticInitdf408f3f8ea034d298269cdf7647358b
+{
+    public static $prefixLengthsPsr4 = array (
+        'C' => 
+        array (
+            'Combodo\\iTop\\Portal\\Tests\\' => 26,
+            'Combodo\\iTop\\Portal\\' => 20,
+        ),
+    );
+
+    public static $prefixDirsPsr4 = array (
+        'Combodo\\iTop\\Portal\\Tests\\' => 
+        array (
+            0 => __DIR__ . '/../..' . '/tests',
+        ),
+        'Combodo\\iTop\\Portal\\' => 
+        array (
+            0 => __DIR__ . '/../..' . '/src',
+        ),
+    );
+
+    public static $classMap = array (
+        'Combodo\\iTop\\Portal\\Brick\\AbstractBrick' => __DIR__ . '/../..' . '/src/Brick/AbstractBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\AggregatePageBrick' => __DIR__ . '/../..' . '/src/Brick/AggregatePageBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\BrickCollection' => __DIR__ . '/../..' . '/src/Brick/BrickCollection.php',
+        'Combodo\\iTop\\Portal\\Brick\\BrickNotFoundException' => __DIR__ . '/../..' . '/src/Brick/BrickNotFoundException.php',
+        'Combodo\\iTop\\Portal\\Brick\\BrowseBrick' => __DIR__ . '/../..' . '/src/Brick/BrowseBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\CreateBrick' => __DIR__ . '/../..' . '/src/Brick/CreateBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\FilterBrick' => __DIR__ . '/../..' . '/src/Brick/FilterBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\ManageBrick' => __DIR__ . '/../..' . '/src/Brick/ManageBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\PortalBrick' => __DIR__ . '/../..' . '/src/Brick/PortalBrick.php',
+        'Combodo\\iTop\\Portal\\Brick\\PropertyNotFoundException' => __DIR__ . '/../..' . '/src/Brick/PropertyNotFoundException.php',
+        'Combodo\\iTop\\Portal\\Brick\\UserProfileBrick' => __DIR__ . '/../..' . '/src/Brick/UserProfileBrick.php',
+        'Combodo\\iTop\\Portal\\Controller\\AbstractController' => __DIR__ . '/../..' . '/src/Controller/AbstractController.php',
+        'Combodo\\iTop\\Portal\\Controller\\AggregatePageBrickController' => __DIR__ . '/../..' . '/src/Controller/AggregatePageBrickController.class.inc.php',
+        'Combodo\\iTop\\Portal\\Controller\\BrickController' => __DIR__ . '/../..' . '/src/Controller/BrickController.php',
+        'Combodo\\iTop\\Portal\\Controller\\BrowseBrickController' => __DIR__ . '/../..' . '/src/Controller/BrowseBrickController.php',
+        'Combodo\\iTop\\Portal\\Controller\\CreateBrickController' => __DIR__ . '/../..' . '/src/Controller/CreateBrickController.php',
+        'Combodo\\iTop\\Portal\\Controller\\DefaultController' => __DIR__ . '/../..' . '/src/Controller/DefaultController.php',
+        'Combodo\\iTop\\Portal\\Controller\\ManageBrickController' => __DIR__ . '/../..' . '/src/Controller/ManageBrickController.php',
+        'Combodo\\iTop\\Portal\\Controller\\ObjectController' => __DIR__ . '/../..' . '/src/Controller/ObjectController.php',
+        'Combodo\\iTop\\Portal\\Controller\\UserProfileBrickController' => __DIR__ . '/../..' . '/src/Controller/UserProfileBrickController.php',
+        'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\AbstractConfiguration' => __DIR__ . '/../..' . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/AbstractConfiguration.php',
+        'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\Basic' => __DIR__ . '/../..' . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/Basic.php',
+        'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\Forms' => __DIR__ . '/../..' . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/Forms.php',
+        'Combodo\\iTop\\Portal\\DependencyInjection\\SilexCompatBootstrap\\PortalXmlConfiguration\\Lists' => __DIR__ . '/../..' . '/src/DependencyInjection/SilexCompatBootstrap/PortalXmlConfiguration/Lists.php',
+        'Combodo\\iTop\\Portal\\EventListener\\ApplicationContextSetUrlMakerClass' => __DIR__ . '/../..' . '/src/EventListener/ApplicationContextSetUrlMakerClass.php',
+        'Combodo\\iTop\\Portal\\EventListener\\UserProvider' => __DIR__ . '/../..' . '/src/EventListener/UserProvider.php',
+        'Combodo\\iTop\\Portal\\Form\\ObjectFormManager' => __DIR__ . '/../..' . '/src/Form/ObjectFormManager.php',
+        'Combodo\\iTop\\Portal\\Form\\PasswordFormManager' => __DIR__ . '/../..' . '/src/Form/PasswordFormManager.php',
+        'Combodo\\iTop\\Portal\\Form\\PreferencesFormManager' => __DIR__ . '/../..' . '/src/Form/PreferencesFormManager.php',
+        'Combodo\\iTop\\Portal\\Helper\\ApplicationHelper' => __DIR__ . '/../..' . '/src/Helper/ApplicationHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\BrickControllerHelper' => __DIR__ . '/../..' . '/src/Helper/BrickControllerHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\BrowseBrickHelper' => __DIR__ . '/../..' . '/src/Helper/BrowseBrickHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\ContextManipulatorHelper' => __DIR__ . '/../..' . '/src/Helper/ContextManipulatorHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\LifecycleValidatorHelper' => __DIR__ . '/../..' . '/src/Helper/LifecycleValidatorHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\ObjectFormHandlerHelper' => __DIR__ . '/../..' . '/src/Helper/ObjectFormHandlerHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\RequestManipulatorHelper' => __DIR__ . '/../..' . '/src/Helper/RequestManipulatorHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\ScopeValidatorHelper' => __DIR__ . '/../..' . '/src/Helper/ScopeValidatorHelper.php',
+        'Combodo\\iTop\\Portal\\Helper\\SecurityHelper' => __DIR__ . '/../..' . '/src/Helper/SecurityHelper.php',
+        'Combodo\\iTop\\Portal\\Kernel' => __DIR__ . '/../..' . '/src/Kernel.php',
+        'Combodo\\iTop\\Portal\\Routing\\ItopExtensionsExtraRoutes' => __DIR__ . '/../..' . '/src/Routing/ItopExtensionsExtraRoutes.php',
+        'Combodo\\iTop\\Portal\\Routing\\UrlGenerator' => __DIR__ . '/../..' . '/src/Routing/UrlGenerator.php',
+        'Combodo\\iTop\\Portal\\Twig\\AppExtension' => __DIR__ . '/../..' . '/src/Twig/AppExtension.php',
+        'Combodo\\iTop\\Portal\\Twig\\AppVariable' => __DIR__ . '/../..' . '/src/Twig/AppVariable.php',
+        'Combodo\\iTop\\Portal\\UrlMaker\\AbstractPortalUrlMaker' => __DIR__ . '/../..' . '/src/UrlMaker/AbstractPortalUrlMaker.php',
+        'Combodo\\iTop\\Portal\\VariableAccessor\\AbstractStringVariableAccessor' => __DIR__ . '/../..' . '/src/VariableAccessor/AbstractStringVariableAccessor.php',
+        'Combodo\\iTop\\Portal\\VariableAccessor\\AbstractVariableAccessor' => __DIR__ . '/../..' . '/src/VariableAccessor/AbstractVariableAccessor.php',
+        'Combodo\\iTop\\Portal\\VariableAccessor\\CombodoCurrentContactPhotoUrl' => __DIR__ . '/../..' . '/src/VariableAccessor/CombodoCurrentContactPhotoUrl.php',
+        'Combodo\\iTop\\Portal\\VariableAccessor\\CombodoPortalInstanceConf' => __DIR__ . '/../..' . '/src/VariableAccessor/CombodoPortalInstanceConf.php',
+    );
+
+    public static function getInitializer(ClassLoader $loader)
+    {
+        return \Closure::bind(function () use ($loader) {
+            $loader->prefixLengthsPsr4 = ComposerStaticInitdf408f3f8ea034d298269cdf7647358b::$prefixLengthsPsr4;
+            $loader->prefixDirsPsr4 = ComposerStaticInitdf408f3f8ea034d298269cdf7647358b::$prefixDirsPsr4;
+            $loader->classMap = ComposerStaticInitdf408f3f8ea034d298269cdf7647358b::$classMap;
+
+        }, null, ClassLoader::class);
+    }
+}

datamodels/2.x/itop-portal-base/portal/vendor/composer/installed.json

@@ -0,0 +1 @@
+[]

datamodels/2.x/itop-portal/main.itop-portal.php

@@ -21,7 +21,8 @@
 
 use Combodo\iTop\Portal\UrlMaker\AbstractPortalUrlMaker;
 
-require_once APPROOT.'/lib/composer-vendor/autoload.php';
+// Global autoloader (portal autoloader is already required through itop-portal-base/module.itop-portal-base.php)
+require_once APPROOT.'/lib/autoload.php';
 
 /**
  * iTopPortalEditUrlMaker

lib/autoload.php

@@ -0,0 +1,7 @@
+<?php
+
+// autoload.php @generated by Composer
+
+require_once __DIR__ . '/composer/autoload_real.php';
+
+return ComposerAutoloaderInit0018331147de7601e7552f7da8e3bb8b::getLoader();

lib/composer/ClassLoader.php

@@ -0,0 +1,445 @@
+<?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    http://www.php-fig.org/psr/psr-0/
+ * @see    http://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    // PSR-4
+    private $prefixLengthsPsr4 = array();
+    private $prefixDirsPsr4 = array();
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    private $prefixesPsr0 = array();
+    private $fallbackDirsPsr0 = array();
+
+    private $useIncludePath = false;
+    private $classMap = array();
+    private $classMapAuthoritative = false;
+    private $missingClasses = array();
+    private $apcuPrefix;
+
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
+        }
+
+        return array();
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array $classMap Class to filename map
+     */
+    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 array|string $paths   The PSR-0 root directories
+     * @param bool         $prepend Whether to prepend the directories
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $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 array|string $paths   The PSR-4 base directories
+     * @param bool         $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($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] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $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 array|string $paths  The PSR-0 base directories
+     */
+    public function set($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 array|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setPsr4($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 $useIncludePath
+     */
+    public function setUseIncludePath($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 $classMapAuthoritative
+     */
+    public function setClassMapAuthoritative($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 $apcuPrefix
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $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 $prepend Whether to prepend the autoloader or not
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return bool|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+    }
+
+    /**
+     * 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 $file;
+    }
+
+    private function findFileWithExtension($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;
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ */
+function includeFile($file)
+{
+    include $file;
+}

lib/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.
+

lib/composer/autoload_files.php

@@ -0,0 +1,15 @@
+<?php
+
+// autoload_files.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    '320cde22f66dd4f5d3fd621d3e88b98f' => $vendorDir . '/symfony/polyfill-ctype/bootstrap.php',
+    '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
+    '5255c38a0faeba867671b61dfda6d864' => $vendorDir . '/paragonie/random_compat/lib/random.php',
+    '023d27dca8066ef29e6739335ea73bad' => $vendorDir . '/symfony/polyfill-php70/bootstrap.php',
+    '32dcc8afd4335739640db7d200c1971d' => $vendorDir . '/symfony/polyfill-apcu/bootstrap.php',
+    '667aeda72477189d0494fecd327c3641' => $vendorDir . '/symfony/var-dumper/Resources/functions/dump.php',
+);

lib/composer/autoload_namespaces.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Twig_' => array($vendorDir . '/twig/twig/lib'),
+);

lib/composer/autoload_psr4.php

@@ -0,0 +1,38 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Twig\\' => array($vendorDir . '/twig/twig/src'),
+    'Symfony\\Polyfill\\Php70\\' => array($vendorDir . '/symfony/polyfill-php70'),
+    'Symfony\\Polyfill\\Mbstring\\' => array($vendorDir . '/symfony/polyfill-mbstring'),
+    'Symfony\\Polyfill\\Ctype\\' => array($vendorDir . '/symfony/polyfill-ctype'),
+    'Symfony\\Polyfill\\Apcu\\' => array($vendorDir . '/symfony/polyfill-apcu'),
+    'Symfony\\Component\\Yaml\\' => array($vendorDir . '/symfony/yaml'),
+    'Symfony\\Component\\VarDumper\\' => array($vendorDir . '/symfony/var-dumper'),
+    'Symfony\\Component\\Stopwatch\\' => array($vendorDir . '/symfony/stopwatch'),
+    'Symfony\\Component\\Routing\\' => array($vendorDir . '/symfony/routing'),
+    'Symfony\\Component\\HttpKernel\\' => array($vendorDir . '/symfony/http-kernel'),
+    'Symfony\\Component\\HttpFoundation\\' => array($vendorDir . '/symfony/http-foundation'),
+    'Symfony\\Component\\Finder\\' => array($vendorDir . '/symfony/finder'),
+    'Symfony\\Component\\Filesystem\\' => array($vendorDir . '/symfony/filesystem'),
+    'Symfony\\Component\\EventDispatcher\\' => array($vendorDir . '/symfony/event-dispatcher'),
+    'Symfony\\Component\\Dotenv\\' => array($vendorDir . '/symfony/dotenv'),
+    'Symfony\\Component\\DependencyInjection\\' => array($vendorDir . '/symfony/dependency-injection'),
+    'Symfony\\Component\\Debug\\' => array($vendorDir . '/symfony/debug'),
+    'Symfony\\Component\\Console\\' => array($vendorDir . '/symfony/console'),
+    'Symfony\\Component\\Config\\' => array($vendorDir . '/symfony/config'),
+    'Symfony\\Component\\ClassLoader\\' => array($vendorDir . '/symfony/class-loader'),
+    'Symfony\\Component\\Cache\\' => array($vendorDir . '/symfony/cache'),
+    'Symfony\\Bundle\\WebProfilerBundle\\' => array($vendorDir . '/symfony/web-profiler-bundle'),
+    'Symfony\\Bundle\\TwigBundle\\' => array($vendorDir . '/symfony/twig-bundle'),
+    'Symfony\\Bundle\\FrameworkBundle\\' => array($vendorDir . '/symfony/framework-bundle'),
+    'Symfony\\Bridge\\Twig\\' => array($vendorDir . '/symfony/twig-bridge'),
+    'Psr\\SimpleCache\\' => array($vendorDir . '/psr/simple-cache/src'),
+    'Psr\\Log\\' => array($vendorDir . '/psr/log/Psr/Log'),
+    'Psr\\Container\\' => array($vendorDir . '/psr/container/src'),
+    'Psr\\Cache\\' => array($vendorDir . '/psr/cache/src'),
+);

lib/composer/autoload_real.php

@@ -0,0 +1,61 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit0018331147de7601e7552f7da8e3bb8b
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        spl_autoload_register(array('ComposerAutoloaderInit0018331147de7601e7552f7da8e3bb8b', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
+        spl_autoload_unregister(array('ComposerAutoloaderInit0018331147de7601e7552f7da8e3bb8b', 'loadClassLoader'));
+
+        $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
+        if ($useStaticLoader) {
+            require_once __DIR__ . '/autoload_static.php';
+
+            call_user_func(\Composer\Autoload\ComposerStaticInit0018331147de7601e7552f7da8e3bb8b::getInitializer($loader));
+        } else {
+            $classMap = require __DIR__ . '/autoload_classmap.php';
+            if ($classMap) {
+                $loader->addClassMap($classMap);
+            }
+        }
+
+        $loader->setClassMapAuthoritative(true);
+        $loader->register(true);
+
+        if ($useStaticLoader) {
+            $includeFiles = Composer\Autoload\ComposerStaticInit0018331147de7601e7552f7da8e3bb8b::$files;
+        } else {
+            $includeFiles = require __DIR__ . '/autoload_files.php';
+        }
+        foreach ($includeFiles as $fileIdentifier => $file) {
+            composerRequire0018331147de7601e7552f7da8e3bb8b($fileIdentifier, $file);
+        }
+
+        return $loader;
+    }
+}
+
+function composerRequire0018331147de7601e7552f7da8e3bb8b($fileIdentifier, $file)
+{
+    if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+        require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+    }
+}

lib/paragonie/random_compat/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Paragon Initiative Enterprises
+
+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.
+

lib/paragonie/random_compat/composer.json

@@ -0,0 +1,38 @@
+{
+  "name":         "paragonie/random_compat",
+  "description":  "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+  "keywords": [
+    "csprng",
+    "random",
+    "polyfill",
+    "pseudorandom"
+  ],
+  "license":      "MIT",
+  "type":         "library",
+  "authors": [
+    {
+      "name":     "Paragon Initiative Enterprises",
+      "email":    "security@paragonie.com",
+      "homepage": "https://paragonie.com"
+    }
+  ],
+  "support": {
+    "issues":     "https://github.com/paragonie/random_compat/issues",
+    "email":      "info@paragonie.com",
+    "source":     "https://github.com/paragonie/random_compat"
+  },
+  "require": {
+    "php": ">=5.2.0"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "4.*|5.*"
+  },
+  "suggest": {
+    "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+  },
+  "autoload": {
+    "files": [
+      "lib/random.php"
+    ]
+  }
+}

lib/paragonie/random_compat/dist/random_compat.phar.pubkey

@@ -0,0 +1,5 @@
+-----BEGIN PUBLIC KEY-----
+MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEEd+wCqJDrx5B4OldM0dQE0ZMX+lx1ZWm
+pui0SUqD4G29L3NGsz9UhJ/0HjBdbnkhIK5xviT0X5vtjacF6ajgcCArbTB+ds+p
++h7Q084NuSuIpNb6YPfoUFgC/CL9kAoc
+-----END PUBLIC KEY-----

lib/paragonie/random_compat/dist/random_compat.phar.pubkey.asc

@@ -0,0 +1,11 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v2.0.22 (MingW32)
+
+iQEcBAABAgAGBQJWtW1hAAoJEGuXocKCZATaJf0H+wbZGgskK1dcRTsuVJl9IWip
+QwGw/qIKI280SD6/ckoUMxKDCJiFuPR14zmqnS36k7N5UNPnpdTJTS8T11jttSpg
+1LCmgpbEIpgaTah+cELDqFCav99fS+bEiAL5lWDAHBTE/XPjGVCqeehyPYref4IW
+NDBIEsvnHPHPLsn6X5jq4+Yj5oUixgxaMPiR+bcO4Sh+RzOVB6i2D0upWfRXBFXA
+NNnsg9/zjvoC7ZW73y9uSH+dPJTt/Vgfeiv52/v41XliyzbUyLalf02GNPY+9goV
+JHG1ulEEBJOCiUD9cE1PUIJwHA/HqyhHIvV350YoEFiHl8iSwm7SiZu5kPjaq74=
+=B6+8
+-----END PGP SIGNATURE-----

lib/paragonie/random_compat/lib/byte_safe_strings.php

@@ -0,0 +1,195 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!is_callable('RandomCompat_strlen')) {
+    if (
+        defined('MB_OVERLOAD_STRING')
+            &&
+        ((int) ini_get('mbstring.func_overload')) & MB_OVERLOAD_STRING
+    ) {
+        /**
+         * strlen() implementation that isn't brittle to mbstring.func_overload
+         *
+         * This version uses mb_strlen() in '8bit' mode to treat strings as raw
+         * binary rather than UTF-8, ISO-8859-1, etc
+         *
+         * @param string $binary_string
+         *
+         * @throws TypeError
+         *
+         * @return int
+         */
+        function RandomCompat_strlen($binary_string)
+        {
+            if (!is_string($binary_string)) {
+                throw new TypeError(
+                    'RandomCompat_strlen() expects a string'
+                );
+            }
+
+            return (int) mb_strlen($binary_string, '8bit');
+        }
+
+    } else {
+        /**
+         * strlen() implementation that isn't brittle to mbstring.func_overload
+         *
+         * This version just used the default strlen()
+         *
+         * @param string $binary_string
+         *
+         * @throws TypeError
+         *
+         * @return int
+         */
+        function RandomCompat_strlen($binary_string)
+        {
+            if (!is_string($binary_string)) {
+                throw new TypeError(
+                    'RandomCompat_strlen() expects a string'
+                );
+            }
+            return (int) strlen($binary_string);
+        }
+    }
+}
+
+if (!is_callable('RandomCompat_substr')) {
+
+    if (
+        defined('MB_OVERLOAD_STRING')
+            &&
+        ((int) ini_get('mbstring.func_overload')) & MB_OVERLOAD_STRING
+    ) {
+        /**
+         * substr() implementation that isn't brittle to mbstring.func_overload
+         *
+         * This version uses mb_substr() in '8bit' mode to treat strings as raw
+         * binary rather than UTF-8, ISO-8859-1, etc
+         *
+         * @param string $binary_string
+         * @param int $start
+         * @param int|null $length (optional)
+         *
+         * @throws TypeError
+         *
+         * @return string
+         */
+        function RandomCompat_substr($binary_string, $start, $length = null)
+        {
+            if (!is_string($binary_string)) {
+                throw new TypeError(
+                    'RandomCompat_substr(): First argument should be a string'
+                );
+            }
+
+            if (!is_int($start)) {
+                throw new TypeError(
+                    'RandomCompat_substr(): Second argument should be an integer'
+                );
+            }
+
+            if ($length === null) {
+                /**
+                 * mb_substr($str, 0, NULL, '8bit') returns an empty string on
+                 * PHP 5.3, so we have to find the length ourselves.
+                 */
+                /** @var int $length */
+                $length = RandomCompat_strlen($binary_string) - $start;
+            } elseif (!is_int($length)) {
+                throw new TypeError(
+                    'RandomCompat_substr(): Third argument should be an integer, or omitted'
+                );
+            }
+
+            // Consistency with PHP's behavior
+            if ($start === RandomCompat_strlen($binary_string) && $length === 0) {
+                return '';
+            }
+            if ($start > RandomCompat_strlen($binary_string)) {
+                return '';
+            }
+
+            return (string) mb_substr(
+                (string) $binary_string,
+                (int) $start,
+                (int) $length,
+                '8bit'
+            );
+        }
+
+    } else {
+
+        /**
+         * substr() implementation that isn't brittle to mbstring.func_overload
+         *
+         * This version just uses the default substr()
+         *
+         * @param string $binary_string
+         * @param int $start
+         * @param int|null $length (optional)
+         *
+         * @throws TypeError
+         *
+         * @return string
+         */
+        function RandomCompat_substr($binary_string, $start, $length = null)
+        {
+            if (!is_string($binary_string)) {
+                throw new TypeError(
+                    'RandomCompat_substr(): First argument should be a string'
+                );
+            }
+
+            if (!is_int($start)) {
+                throw new TypeError(
+                    'RandomCompat_substr(): Second argument should be an integer'
+                );
+            }
+
+            if ($length !== null) {
+                if (!is_int($length)) {
+                    throw new TypeError(
+                        'RandomCompat_substr(): Third argument should be an integer, or omitted'
+                    );
+                }
+
+                return (string) substr(
+                    (string )$binary_string,
+                    (int) $start,
+                    (int) $length
+                );
+            }
+
+            return (string) substr(
+                (string) $binary_string,
+                (int) $start
+            );
+        }
+    }
+}

lib/paragonie/random_compat/lib/cast_to_int.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!is_callable('RandomCompat_intval')) {
+
+    /**
+     * Cast to an integer if we can, safely.
+     *
+     * If you pass it a float in the range (~PHP_INT_MAX, PHP_INT_MAX)
+     * (non-inclusive), it will sanely cast it to an int. If you it's equal to
+     * ~PHP_INT_MAX or PHP_INT_MAX, we let it fail as not an integer. Floats 
+     * lose precision, so the <= and => operators might accidentally let a float
+     * through.
+     *
+     * @param int|float $number    The number we want to convert to an int
+     * @param bool      $fail_open Set to true to not throw an exception
+     *
+     * @return float|int
+     * @psalm-suppress InvalidReturnType
+     *
+     * @throws TypeError
+     */
+    function RandomCompat_intval($number, $fail_open = false)
+    {
+        if (is_int($number) || is_float($number)) {
+            $number += 0;
+        } elseif (is_numeric($number)) {
+            /** @psalm-suppress InvalidOperand */
+            $number += 0;
+        }
+        /** @var int|float $number */
+
+        if (
+            is_float($number)
+                &&
+            $number > ~PHP_INT_MAX
+                &&
+            $number < PHP_INT_MAX
+        ) {
+            $number = (int) $number;
+        }
+
+        if (is_int($number)) {
+            return (int) $number;
+        } elseif (!$fail_open) {
+            throw new TypeError(
+                'Expected an integer.'
+            );
+        }
+        return $number;
+    }
+}

lib/paragonie/random_compat/lib/error_polyfill.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!class_exists('Error', false)) {
+    // We can't really avoid making this extend Exception in PHP 5.
+    class Error extends Exception
+    {
+
+    }
+}
+
+if (!class_exists('TypeError', false)) {
+    if (is_subclass_of('Error', 'Exception')) {
+        class TypeError extends Error
+        {
+
+        }
+    } else {
+        class TypeError extends Exception
+        {
+
+        }
+    }
+}

lib/paragonie/random_compat/lib/random.php

@@ -0,0 +1,225 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * @version 2.0.17
+ * @released 2018-07-04
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!defined('PHP_VERSION_ID')) {
+    // This constant was introduced in PHP 5.2.7
+    $RandomCompatversion = array_map('intval', explode('.', PHP_VERSION));
+    define(
+        'PHP_VERSION_ID',
+        $RandomCompatversion[0] * 10000
+        + $RandomCompatversion[1] * 100
+        + $RandomCompatversion[2]
+    );
+    $RandomCompatversion = null;
+}
+
+/**
+ * PHP 7.0.0 and newer have these functions natively.
+ */
+if (PHP_VERSION_ID >= 70000) {
+    return;
+}
+
+if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
+    define('RANDOM_COMPAT_READ_BUFFER', 8);
+}
+
+$RandomCompatDIR = dirname(__FILE__);
+
+require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'byte_safe_strings.php';
+require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'cast_to_int.php';
+require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'error_polyfill.php';
+
+if (!is_callable('random_bytes')) {
+    /**
+     * PHP 5.2.0 - 5.6.x way to implement random_bytes()
+     *
+     * We use conditional statements here to define the function in accordance
+     * to the operating environment. It's a micro-optimization.
+     *
+     * In order of preference:
+     *   1. Use libsodium if available.
+     *   2. fread() /dev/urandom if available (never on Windows)
+     *   3. mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM)
+     *   4. COM('CAPICOM.Utilities.1')->GetRandom()
+     *
+     * See RATIONALE.md for our reasoning behind this particular order
+     */
+    if (extension_loaded('libsodium')) {
+        // See random_bytes_libsodium.php
+        if (PHP_VERSION_ID >= 50300 && is_callable('\\Sodium\\randombytes_buf')) {
+            require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'random_bytes_libsodium.php';
+        } elseif (method_exists('Sodium', 'randombytes_buf')) {
+            require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'random_bytes_libsodium_legacy.php';
+        }
+    }
+
+    /**
+     * Reading directly from /dev/urandom:
+     */
+    if (DIRECTORY_SEPARATOR === '/') {
+        // DIRECTORY_SEPARATOR === '/' on Unix-like OSes -- this is a fast
+        // way to exclude Windows.
+        $RandomCompatUrandom = true;
+        $RandomCompat_basedir = ini_get('open_basedir');
+
+        if (!empty($RandomCompat_basedir)) {
+            $RandomCompat_open_basedir = explode(
+                PATH_SEPARATOR,
+                strtolower($RandomCompat_basedir)
+            );
+            $RandomCompatUrandom = (array() !== array_intersect(
+                array('/dev', '/dev/', '/dev/urandom'),
+                $RandomCompat_open_basedir
+            ));
+            $RandomCompat_open_basedir = null;
+        }
+
+        if (
+            !is_callable('random_bytes')
+            &&
+            $RandomCompatUrandom
+            &&
+            @is_readable('/dev/urandom')
+        ) {
+            // Error suppression on is_readable() in case of an open_basedir
+            // or safe_mode failure. All we care about is whether or not we
+            // can read it at this point. If the PHP environment is going to
+            // panic over trying to see if the file can be read in the first
+            // place, that is not helpful to us here.
+
+            // See random_bytes_dev_urandom.php
+            require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'random_bytes_dev_urandom.php';
+        }
+        // Unset variables after use
+        $RandomCompat_basedir = null;
+    } else {
+        $RandomCompatUrandom = false;
+    }
+
+    /**
+     * mcrypt_create_iv()
+     *
+     * We only want to use mcypt_create_iv() if:
+     *
+     * - random_bytes() hasn't already been defined
+     * - the mcrypt extensions is loaded
+     * - One of these two conditions is true:
+     *   - We're on Windows (DIRECTORY_SEPARATOR !== '/')
+     *   - We're not on Windows and /dev/urandom is readabale
+     *     (i.e. we're not in a chroot jail)
+     * - Special case:
+     *   - If we're not on Windows, but the PHP version is between
+     *     5.6.10 and 5.6.12, we don't want to use mcrypt. It will
+     *     hang indefinitely. This is bad.
+     *   - If we're on Windows, we want to use PHP >= 5.3.7 or else
+     *     we get insufficient entropy errors.
+     */
+    if (
+        !is_callable('random_bytes')
+        &&
+        // Windows on PHP < 5.3.7 is broken, but non-Windows is not known to be.
+        (DIRECTORY_SEPARATOR === '/' || PHP_VERSION_ID >= 50307)
+        &&
+        // Prevent this code from hanging indefinitely on non-Windows;
+        // see https://bugs.php.net/bug.php?id=69833
+        (
+            DIRECTORY_SEPARATOR !== '/' ||
+            (PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)
+        )
+        &&
+        extension_loaded('mcrypt')
+    ) {
+        // See random_bytes_mcrypt.php
+        require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'random_bytes_mcrypt.php';
+    }
+    $RandomCompatUrandom = null;
+
+    /**
+     * This is a Windows-specific fallback, for when the mcrypt extension
+     * isn't loaded.
+     */
+    if (
+        !is_callable('random_bytes')
+        &&
+        extension_loaded('com_dotnet')
+        &&
+        class_exists('COM')
+    ) {
+        $RandomCompat_disabled_classes = preg_split(
+            '#\s*,\s*#',
+            strtolower(ini_get('disable_classes'))
+        );
+
+        if (!in_array('com', $RandomCompat_disabled_classes)) {
+            try {
+                $RandomCompatCOMtest = new COM('CAPICOM.Utilities.1');
+                if (method_exists($RandomCompatCOMtest, 'GetRandom')) {
+                    // See random_bytes_com_dotnet.php
+                    require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'random_bytes_com_dotnet.php';
+                }
+            } catch (com_exception $e) {
+                // Don't try to use it.
+            }
+        }
+        $RandomCompat_disabled_classes = null;
+        $RandomCompatCOMtest = null;
+    }
+
+    /**
+     * throw new Exception
+     */
+    if (!is_callable('random_bytes')) {
+        /**
+         * We don't have any more options, so let's throw an exception right now
+         * and hope the developer won't let it fail silently.
+         *
+         * @param mixed $length
+         * @psalm-suppress InvalidReturnType
+         * @throws Exception
+         * @return string
+         */
+        function random_bytes($length)
+        {
+            unset($length); // Suppress "variable not used" warnings.
+            throw new Exception(
+                'There is no suitable CSPRNG installed on your system'
+            );
+            return '';
+        }
+    }
+}
+
+if (!is_callable('random_int')) {
+    require_once $RandomCompatDIR . DIRECTORY_SEPARATOR . 'random_int.php';
+}
+
+$RandomCompatDIR = null;

lib/paragonie/random_compat/lib/random_bytes_com_dotnet.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!is_callable('random_bytes')) {
+    /**
+     * Windows with PHP < 5.3.0 will not have the function
+     * openssl_random_pseudo_bytes() available, so let's use
+     * CAPICOM to work around this deficiency.
+     *
+     * @param int $bytes
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    function random_bytes($bytes)
+    {
+        try {
+            /** @var int $bytes */
+            $bytes = RandomCompat_intval($bytes);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_bytes(): $bytes must be an integer'
+            );
+        }
+
+        if ($bytes < 1) {
+            throw new Error(
+                'Length must be greater than 0'
+            );
+        }
+
+        /** @var string $buf */
+        $buf = '';
+        if (!class_exists('COM')) {
+            throw new Error(
+                'COM does not exist'
+            );
+        }
+        /** @var COM $util */
+        $util = new COM('CAPICOM.Utilities.1');
+        $execCount = 0;
+
+        /**
+         * Let's not let it loop forever. If we run N times and fail to
+         * get N bytes of random data, then CAPICOM has failed us.
+         */
+        do {
+            $buf .= base64_decode((string) $util->GetRandom($bytes, 0));
+            if (RandomCompat_strlen($buf) >= $bytes) {
+                /**
+                 * Return our random entropy buffer here:
+                 */
+                return (string) RandomCompat_substr($buf, 0, $bytes);
+            }
+            ++$execCount;
+        } while ($execCount < $bytes);
+
+        /**
+         * If we reach here, PHP has failed us.
+         */
+        throw new Exception(
+            'Could not gather sufficient random data'
+        );
+    }
+}

lib/paragonie/random_compat/lib/random_bytes_dev_urandom.php

@@ -0,0 +1,190 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
+    define('RANDOM_COMPAT_READ_BUFFER', 8);
+}
+
+if (!is_callable('random_bytes')) {
+    /**
+     * Unless open_basedir is enabled, use /dev/urandom for
+     * random numbers in accordance with best practices
+     *
+     * Why we use /dev/urandom and not /dev/random
+     * @ref https://www.2uo.de/myths-about-urandom
+     * @ref http://sockpuppet.org/blog/2014/02/25/safely-generate-random-numbers
+     *
+     * @param int $bytes
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    function random_bytes($bytes)
+    {
+        /** @var resource $fp */
+        static $fp = null;
+
+        /**
+         * This block should only be run once
+         */
+        if (empty($fp)) {
+            /**
+             * We don't want to ever read C:\dev\random, only /dev/urandom on
+             * Unix-like operating systems. While we guard against this
+             * condition in random.php, it doesn't hurt to be defensive in depth
+             * here.
+             *
+             * To that end, we only try to open /dev/urandom if we're on a Unix-
+             * like operating system (which means the directory separator is set
+             * to "/" not "\".
+             */
+            if (DIRECTORY_SEPARATOR === '/') {
+                if (!is_readable('/dev/urandom')) {
+                    throw new Exception(
+                        'Environment misconfiguration: ' .
+                        '/dev/urandom cannot be read.'
+                    );
+                }
+                /**
+                 * We use /dev/urandom if it is a char device.
+                 * We never fall back to /dev/random
+                 */
+                /** @var resource|bool $fp */
+                $fp = fopen('/dev/urandom', 'rb');
+                if (is_resource($fp)) {
+                    /** @var array<string, int> $st */
+                    $st = fstat($fp);
+                    if (($st['mode'] & 0170000) !== 020000) {
+                        fclose($fp);
+                        $fp = false;
+                    }
+                }
+            }
+
+            if (is_resource($fp)) {
+                /**
+                 * stream_set_read_buffer() does not exist in HHVM
+                 *
+                 * If we don't set the stream's read buffer to 0, PHP will
+                 * internally buffer 8192 bytes, which can waste entropy
+                 *
+                 * stream_set_read_buffer returns 0 on success
+                 */
+                if (is_callable('stream_set_read_buffer')) {
+                    stream_set_read_buffer($fp, RANDOM_COMPAT_READ_BUFFER);
+                }
+                if (is_callable('stream_set_chunk_size')) {
+                    stream_set_chunk_size($fp, RANDOM_COMPAT_READ_BUFFER);
+                }
+            }
+        }
+
+        try {
+            /** @var int $bytes */
+            $bytes = RandomCompat_intval($bytes);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_bytes(): $bytes must be an integer'
+            );
+        }
+
+        if ($bytes < 1) {
+            throw new Error(
+                'Length must be greater than 0'
+            );
+        }
+
+        /**
+         * This if() block only runs if we managed to open a file handle
+         *
+         * It does not belong in an else {} block, because the above
+         * if (empty($fp)) line is logic that should only be run once per
+         * page load.
+         */
+        if (is_resource($fp)) {
+            /**
+             * @var int
+             */
+            $remaining = $bytes;
+
+            /**
+             * @var string|bool
+             */
+            $buf = '';
+
+            /**
+             * We use fread() in a loop to protect against partial reads
+             */
+            do {
+                /**
+                 * @var string|bool
+                 */
+                $read = fread($fp, $remaining);
+                if (!is_string($read)) {
+                    /**
+                     * We cannot safely read from the file. Exit the
+                     * do-while loop and trigger the exception condition
+                     *
+                     * @var string|bool
+                     */
+                    $buf = false;
+                    break;
+                }
+                /**
+                 * Decrease the number of bytes returned from remaining
+                 */
+                $remaining -= RandomCompat_strlen($read);
+                /**
+                 * @var string $buf
+                 */
+                $buf .= $read;
+            } while ($remaining > 0);
+
+            /**
+             * Is our result valid?
+             * @var string|bool $buf
+             */
+            if (is_string($buf)) {
+                if (RandomCompat_strlen($buf) === $bytes) {
+                    /**
+                     * Return our random entropy buffer here:
+                     */
+                    return $buf;
+                }
+            }
+        }
+
+        /**
+         * If we reach here, PHP has failed us.
+         */
+        throw new Exception(
+            'Error reading from source device'
+        );
+    }
+}

lib/paragonie/random_compat/lib/random_bytes_libsodium.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!is_callable('random_bytes')) {
+    /**
+     * If the libsodium PHP extension is loaded, we'll use it above any other
+     * solution.
+     *
+     * libsodium-php project:
+     * @ref https://github.com/jedisct1/libsodium-php
+     *
+     * @param int $bytes
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    function random_bytes($bytes)
+    {
+        try {
+            /** @var int $bytes */
+            $bytes = RandomCompat_intval($bytes);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_bytes(): $bytes must be an integer'
+            );
+        }
+
+        if ($bytes < 1) {
+            throw new Error(
+                'Length must be greater than 0'
+            );
+        }
+
+        /**
+         * \Sodium\randombytes_buf() doesn't allow more than 2147483647 bytes to be
+         * generated in one invocation.
+         */
+        /** @var string|bool $buf */
+        if ($bytes > 2147483647) {
+            $buf = '';
+            for ($i = 0; $i < $bytes; $i += 1073741824) {
+                $n = ($bytes - $i) > 1073741824
+                    ? 1073741824
+                    : $bytes - $i;
+                $buf .= \Sodium\randombytes_buf($n);
+            }
+        } else {
+            /** @var string|bool $buf */
+            $buf = \Sodium\randombytes_buf($bytes);
+        }
+
+        if (is_string($buf)) {
+            if (RandomCompat_strlen($buf) === $bytes) {
+                return $buf;
+            }
+        }
+
+        /**
+         * If we reach here, PHP has failed us.
+         */
+        throw new Exception(
+            'Could not gather sufficient random data'
+        );
+    }
+}

lib/paragonie/random_compat/lib/random_bytes_libsodium_legacy.php

@@ -0,0 +1,93 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!is_callable('random_bytes')) {
+    /**
+     * If the libsodium PHP extension is loaded, we'll use it above any other
+     * solution.
+     *
+     * libsodium-php project:
+     * @ref https://github.com/jedisct1/libsodium-php
+     *
+     * @param int $bytes
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    function random_bytes($bytes)
+    {
+        try {
+            /** @var int $bytes */
+            $bytes = RandomCompat_intval($bytes);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_bytes(): $bytes must be an integer'
+            );
+        }
+
+        if ($bytes < 1) {
+            throw new Error(
+                'Length must be greater than 0'
+            );
+        }
+
+        /**
+         * @var string
+         */
+        $buf = '';
+
+        /**
+         * \Sodium\randombytes_buf() doesn't allow more than 2147483647 bytes to be
+         * generated in one invocation.
+         */
+        if ($bytes > 2147483647) {
+            for ($i = 0; $i < $bytes; $i += 1073741824) {
+                $n = ($bytes - $i) > 1073741824
+                    ? 1073741824
+                    : $bytes - $i;
+                $buf .= Sodium::randombytes_buf((int) $n);
+            }
+        } else {
+            $buf .= Sodium::randombytes_buf((int) $bytes);
+        }
+
+        if (is_string($buf)) {
+            if (RandomCompat_strlen($buf) === $bytes) {
+                return $buf;
+            }
+        }
+
+        /**
+         * If we reach here, PHP has failed us.
+         */
+        throw new Exception(
+            'Could not gather sufficient random data'
+        );
+    }
+}

lib/paragonie/random_compat/lib/random_bytes_mcrypt.php

@@ -0,0 +1,79 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+ *
+ * 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.
+ */
+
+if (!is_callable('random_bytes')) {
+    /**
+     * Powered by ext/mcrypt (and thankfully NOT libmcrypt)
+     *
+     * @ref https://bugs.php.net/bug.php?id=55169
+     * @ref https://github.com/php/php-src/blob/c568ffe5171d942161fc8dda066bce844bdef676/ext/mcrypt/mcrypt.c#L1321-L1386
+     *
+     * @param int $bytes
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    function random_bytes($bytes)
+    {
+        try {
+            /** @var int $bytes */
+            $bytes = RandomCompat_intval($bytes);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_bytes(): $bytes must be an integer'
+            );
+        }
+
+        if ($bytes < 1) {
+            throw new Error(
+                'Length must be greater than 0'
+            );
+        }
+
+        /** @var string|bool $buf */
+        $buf = @mcrypt_create_iv((int) $bytes, (int) MCRYPT_DEV_URANDOM);
+        if (
+            is_string($buf)
+                &&
+            RandomCompat_strlen($buf) === $bytes
+        ) {
+            /**
+             * Return our random entropy buffer here:
+             */
+            return $buf;
+        }
+
+        /**
+         * If we reach here, PHP has failed us.
+         */
+        throw new Exception(
+            'Could not gather sufficient random data'
+        );
+    }
+}

lib/paragonie/random_compat/lib/random_int.php

@@ -0,0 +1,204 @@
+<?php
+
+if (!is_callable('random_int')) {
+    /**
+     * Random_* Compatibility Library
+     * for using the new PHP 7 random_* API in PHP 5 projects
+     *
+     * The MIT License (MIT)
+     *
+     * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises
+     *
+     * 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.
+     */
+
+    /**
+     * Fetch a random integer between $min and $max inclusive
+     *
+     * @param int $min
+     * @param int $max
+     *
+     * @throws Exception
+     *
+     * @return int
+     */
+    function random_int($min, $max)
+    {
+        /**
+         * Type and input logic checks
+         *
+         * If you pass it a float in the range (~PHP_INT_MAX, PHP_INT_MAX)
+         * (non-inclusive), it will sanely cast it to an int. If you it's equal to
+         * ~PHP_INT_MAX or PHP_INT_MAX, we let it fail as not an integer. Floats
+         * lose precision, so the <= and => operators might accidentally let a float
+         * through.
+         */
+
+        try {
+            /** @var int $min */
+            $min = RandomCompat_intval($min);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_int(): $min must be an integer'
+            );
+        }
+
+        try {
+            /** @var int $max */
+            $max = RandomCompat_intval($max);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_int(): $max must be an integer'
+            );
+        }
+
+        /**
+         * Now that we've verified our weak typing system has given us an integer,
+         * let's validate the logic then we can move forward with generating random
+         * integers along a given range.
+         */
+        if ($min > $max) {
+            throw new Error(
+                'Minimum value must be less than or equal to the maximum value'
+            );
+        }
+
+        if ($max === $min) {
+            return (int) $min;
+        }
+
+        /**
+         * Initialize variables to 0
+         *
+         * We want to store:
+         * $bytes => the number of random bytes we need
+         * $mask => an integer bitmask (for use with the &) operator
+         *          so we can minimize the number of discards
+         */
+        $attempts = $bits = $bytes = $mask = $valueShift = 0;
+        /** @var int $attempts */
+        /** @var int $bits */
+        /** @var int $bytes */
+        /** @var int $mask */
+        /** @var int $valueShift */
+
+        /**
+         * At this point, $range is a positive number greater than 0. It might
+         * overflow, however, if $max - $min > PHP_INT_MAX. PHP will cast it to
+         * a float and we will lose some precision.
+         *
+         * @var int|float $range
+         */
+        $range = $max - $min;
+
+        /**
+         * Test for integer overflow:
+         */
+        if (!is_int($range)) {
+
+            /**
+             * Still safely calculate wider ranges.
+             * Provided by @CodesInChaos, @oittaa
+             *
+             * @ref https://gist.github.com/CodesInChaos/03f9ea0b58e8b2b8d435
+             *
+             * We use ~0 as a mask in this case because it generates all 1s
+             *
+             * @ref https://eval.in/400356 (32-bit)
+             * @ref http://3v4l.org/XX9r5  (64-bit)
+             */
+            $bytes = PHP_INT_SIZE;
+            /** @var int $mask */
+            $mask = ~0;
+
+        } else {
+
+            /**
+             * $bits is effectively ceil(log($range, 2)) without dealing with
+             * type juggling
+             */
+            while ($range > 0) {
+                if ($bits % 8 === 0) {
+                    ++$bytes;
+                }
+                ++$bits;
+                $range >>= 1;
+                /** @var int $mask */
+                $mask = $mask << 1 | 1;
+            }
+            $valueShift = $min;
+        }
+
+        /** @var int $val */
+        $val = 0;
+        /**
+         * Now that we have our parameters set up, let's begin generating
+         * random integers until one falls between $min and $max
+         */
+        /** @psalm-suppress RedundantCondition */
+        do {
+            /**
+             * The rejection probability is at most 0.5, so this corresponds
+             * to a failure probability of 2^-128 for a working RNG
+             */
+            if ($attempts > 128) {
+                throw new Exception(
+                    'random_int: RNG is broken - too many rejections'
+                );
+            }
+
+            /**
+             * Let's grab the necessary number of random bytes
+             */
+            $randomByteString = random_bytes($bytes);
+
+            /**
+             * Let's turn $randomByteString into an integer
+             *
+             * This uses bitwise operators (<< and |) to build an integer
+             * out of the values extracted from ord()
+             *
+             * Example: [9F] | [6D] | [32] | [0C] =>
+             *   159 + 27904 + 3276800 + 201326592 =>
+             *   204631455
+             */
+            $val &= 0;
+            for ($i = 0; $i < $bytes; ++$i) {
+                $val |= ord($randomByteString[$i]) << ($i * 8);
+            }
+            /** @var int $val */
+
+            /**
+             * Apply mask
+             */
+            $val &= $mask;
+            $val += $valueShift;
+
+            ++$attempts;
+            /**
+             * If $val overflows to a floating point number,
+             * ... or is larger than $max,
+             * ... or smaller than $min,
+             * then try again.
+             */
+        } while (!is_int($val) || $val > $max || $val < $min);
+
+        return (int) $val;
+    }
+}

lib/psr/cache/CHANGELOG.md

@@ -0,0 +1,16 @@
+# Changelog
+
+All notable changes to this project will be documented in this file, in reverse chronological order by release.
+
+## 1.0.1 - 2016-08-06
+
+### Fixed
+
+- Make spacing consistent in phpdoc annotations php-fig/cache#9 - chalasr
+- Fix grammar in phpdoc annotations php-fig/cache#10 - chalasr
+- Be more specific in docblocks that `getItems()` and `deleteItems()` take an array of strings (`string[]`) compared to just `array` php-fig/cache#8 - GrahamCampbell
+- For `expiresAt()` and `expiresAfter()` in CacheItemInterface fix docblock to specify null as a valid parameters as well as an implementation of DateTimeInterface php-fig/cache#7 - GrahamCampbell
+
+## 1.0.0 - 2015-12-11
+
+Initial stable release; reflects accepted PSR-6 specification

lib/psr/cache/LICENSE.txt

@@ -0,0 +1,19 @@
+Copyright (c) 2015 PHP Framework Interoperability Group
+
+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.

lib/psr/cache/README.md

@@ -0,0 +1,9 @@
+PSR Cache
+=========
+
+This repository holds all interfaces defined by
+[PSR-6](http://www.php-fig.org/psr/psr-6/).
+
+Note that this is not a Cache implementation of its own. It is merely an
+interface that describes a Cache implementation. See the specification for more 
+details.

lib/psr/cache/composer.json

@@ -0,0 +1,25 @@
+{
+    "name": "psr/cache",
+    "description": "Common interface for caching libraries",
+    "keywords": ["psr", "psr-6", "cache"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\Cache\\": "src/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}

lib/psr/cache/src/CacheException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * Exception interface for all exceptions thrown by an Implementing Library.
+ */
+interface CacheException
+{
+}

lib/psr/cache/src/CacheItemInterface.php

@@ -0,0 +1,105 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * CacheItemInterface defines an interface for interacting with objects inside a cache.
+ *
+ * Each Item object MUST be associated with a specific key, which can be set
+ * according to the implementing system and is typically passed by the
+ * Cache\CacheItemPoolInterface object.
+ *
+ * The Cache\CacheItemInterface object encapsulates the storage and retrieval of
+ * cache items. Each Cache\CacheItemInterface is generated by a
+ * Cache\CacheItemPoolInterface object, which is responsible for any required
+ * setup as well as associating the object with a unique Key.
+ * Cache\CacheItemInterface objects MUST be able to store and retrieve any type
+ * of PHP value defined in the Data section of the specification.
+ *
+ * Calling Libraries MUST NOT instantiate Item objects themselves. They may only
+ * be requested from a Pool object via the getItem() method.  Calling Libraries
+ * SHOULD NOT assume that an Item created by one Implementing Library is
+ * compatible with a Pool from another Implementing Library.
+ */
+interface CacheItemInterface
+{
+    /**
+     * Returns the key for the current cache item.
+     *
+     * The key is loaded by the Implementing Library, but should be available to
+     * the higher level callers when needed.
+     *
+     * @return string
+     *   The key string for this cache item.
+     */
+    public function getKey();
+
+    /**
+     * Retrieves the value of the item from the cache associated with this object's key.
+     *
+     * The value returned must be identical to the value originally stored by set().
+     *
+     * If isHit() returns false, this method MUST return null. Note that null
+     * is a legitimate cached value, so the isHit() method SHOULD be used to
+     * differentiate between "null value was found" and "no value was found."
+     *
+     * @return mixed
+     *   The value corresponding to this cache item's key, or null if not found.
+     */
+    public function get();
+
+    /**
+     * Confirms if the cache item lookup resulted in a cache hit.
+     *
+     * Note: This method MUST NOT have a race condition between calling isHit()
+     * and calling get().
+     *
+     * @return bool
+     *   True if the request resulted in a cache hit. False otherwise.
+     */
+    public function isHit();
+
+    /**
+     * Sets the value represented by this cache item.
+     *
+     * The $value argument may be any item that can be serialized by PHP,
+     * although the method of serialization is left up to the Implementing
+     * Library.
+     *
+     * @param mixed $value
+     *   The serializable value to be stored.
+     *
+     * @return static
+     *   The invoked object.
+     */
+    public function set($value);
+
+    /**
+     * Sets the expiration time for this cache item.
+     *
+     * @param \DateTimeInterface|null $expiration
+     *   The point in time after which the item MUST be considered expired.
+     *   If null is passed explicitly, a default value MAY be used. If none is set,
+     *   the value should be stored permanently or for as long as the
+     *   implementation allows.
+     *
+     * @return static
+     *   The called object.
+     */
+    public function expiresAt($expiration);
+
+    /**
+     * Sets the expiration time for this cache item.
+     *
+     * @param int|\DateInterval|null $time
+     *   The period of time from the present after which the item MUST be considered
+     *   expired. An integer parameter is understood to be the time in seconds until
+     *   expiration. If null is passed explicitly, a default value MAY be used.
+     *   If none is set, the value should be stored permanently or for as long as the
+     *   implementation allows.
+     *
+     * @return static
+     *   The called object.
+     */
+    public function expiresAfter($time);
+}

lib/psr/cache/src/CacheItemPoolInterface.php

@@ -0,0 +1,138 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * CacheItemPoolInterface generates CacheItemInterface objects.
+ *
+ * The primary purpose of Cache\CacheItemPoolInterface is to accept a key from
+ * the Calling Library and return the associated Cache\CacheItemInterface object.
+ * It is also the primary point of interaction with the entire cache collection.
+ * All configuration and initialization of the Pool is left up to an
+ * Implementing Library.
+ */
+interface CacheItemPoolInterface
+{
+    /**
+     * Returns a Cache Item representing the specified key.
+     *
+     * This method must always return a CacheItemInterface object, even in case of
+     * a cache miss. It MUST NOT return null.
+     *
+     * @param string $key
+     *   The key for which to return the corresponding Cache Item.
+     *
+     * @throws InvalidArgumentException
+     *   If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return CacheItemInterface
+     *   The corresponding Cache Item.
+     */
+    public function getItem($key);
+
+    /**
+     * Returns a traversable set of cache items.
+     *
+     * @param string[] $keys
+     *   An indexed array of keys of items to retrieve.
+     *
+     * @throws InvalidArgumentException
+     *   If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return array|\Traversable
+     *   A traversable collection of Cache Items keyed by the cache keys of
+     *   each item. A Cache item will be returned for each key, even if that
+     *   key is not found. However, if no keys are specified then an empty
+     *   traversable MUST be returned instead.
+     */
+    public function getItems(array $keys = array());
+
+    /**
+     * Confirms if the cache contains specified cache item.
+     *
+     * Note: This method MAY avoid retrieving the cached value for performance reasons.
+     * This could result in a race condition with CacheItemInterface::get(). To avoid
+     * such situation use CacheItemInterface::isHit() instead.
+     *
+     * @param string $key
+     *   The key for which to check existence.
+     *
+     * @throws InvalidArgumentException
+     *   If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return bool
+     *   True if item exists in the cache, false otherwise.
+     */
+    public function hasItem($key);
+
+    /**
+     * Deletes all items in the pool.
+     *
+     * @return bool
+     *   True if the pool was successfully cleared. False if there was an error.
+     */
+    public function clear();
+
+    /**
+     * Removes the item from the pool.
+     *
+     * @param string $key
+     *   The key to delete.
+     *
+     * @throws InvalidArgumentException
+     *   If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return bool
+     *   True if the item was successfully removed. False if there was an error.
+     */
+    public function deleteItem($key);
+
+    /**
+     * Removes multiple items from the pool.
+     *
+     * @param string[] $keys
+     *   An array of keys that should be removed from the pool.
+
+     * @throws InvalidArgumentException
+     *   If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return bool
+     *   True if the items were successfully removed. False if there was an error.
+     */
+    public function deleteItems(array $keys);
+
+    /**
+     * Persists a cache item immediately.
+     *
+     * @param CacheItemInterface $item
+     *   The cache item to save.
+     *
+     * @return bool
+     *   True if the item was successfully persisted. False if there was an error.
+     */
+    public function save(CacheItemInterface $item);
+
+    /**
+     * Sets a cache item to be persisted later.
+     *
+     * @param CacheItemInterface $item
+     *   The cache item to save.
+     *
+     * @return bool
+     *   False if the item could not be queued or if a commit was attempted and failed. True otherwise.
+     */
+    public function saveDeferred(CacheItemInterface $item);
+
+    /**
+     * Persists any deferred cache items.
+     *
+     * @return bool
+     *   True if all not-yet-saved items were successfully saved or there were none. False otherwise.
+     */
+    public function commit();
+}

lib/psr/cache/src/InvalidArgumentException.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * Exception interface for invalid cache arguments.
+ *
+ * Any time an invalid argument is passed into a method it must throw an
+ * exception class which implements Psr\Cache\InvalidArgumentException.
+ */
+interface InvalidArgumentException extends CacheException
+{
+}

lib/psr/container/.gitignore

@@ -0,0 +1,3 @@
+composer.lock
+composer.phar
+/vendor/

lib/psr/container/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2016 container-interop
+Copyright (c) 2016 PHP Framework Interoperability Group
+
+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.

lib/psr/container/README.md

@@ -0,0 +1,5 @@
+# PSR Container
+
+This repository holds all interfaces/classes/traits related to [PSR-11](https://github.com/container-interop/fig-standards/blob/master/proposed/container.md).
+
+Note that this is not a container implementation of its own. See the specification for more details.

lib/psr/container/composer.json

@@ -0,0 +1,27 @@
+{
+    "name": "psr/container",
+    "type": "library",
+    "description": "Common Container Interface (PHP FIG PSR-11)",
+    "keywords": ["psr", "psr-11", "container", "container-interop", "container-interface"],
+    "homepage": "https://github.com/php-fig/container",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\Container\\": "src/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}

lib/psr/container/src/ContainerExceptionInterface.php

@@ -0,0 +1,13 @@
+<?php
+/**
+ * @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file)
+ */
+
+namespace Psr\Container;
+
+/**
+ * Base interface representing a generic exception in a container.
+ */
+interface ContainerExceptionInterface
+{
+}

lib/psr/container/src/ContainerInterface.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file)
+ */
+
+namespace Psr\Container;
+
+/**
+ * Describes the interface of a container that exposes methods to read its entries.
+ */
+interface ContainerInterface
+{
+    /**
+     * Finds an entry of the container by its identifier and returns it.
+     *
+     * @param string $id Identifier of the entry to look for.
+     *
+     * @throws NotFoundExceptionInterface  No entry was found for **this** identifier.
+     * @throws ContainerExceptionInterface Error while retrieving the entry.
+     *
+     * @return mixed Entry.
+     */
+    public function get($id);
+
+    /**
+     * Returns true if the container can return an entry for the given identifier.
+     * Returns false otherwise.
+     *
+     * `has($id)` returning true does not mean that `get($id)` will not throw an exception.
+     * It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`.
+     *
+     * @param string $id Identifier of the entry to look for.
+     *
+     * @return bool
+     */
+    public function has($id);
+}

lib/psr/container/src/NotFoundExceptionInterface.php

@@ -0,0 +1,13 @@
+<?php
+/**
+ * @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file)
+ */
+
+namespace Psr\Container;
+
+/**
+ * No entry was found in the container.
+ */
+interface NotFoundExceptionInterface extends ContainerExceptionInterface
+{
+}

lib/psr/log/.gitignore

@@ -0,0 +1 @@
+vendor

lib/psr/log/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2012 PHP Framework Interoperability Group
+
+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.

lib/psr/log/Psr/Log/AbstractLogger.php

@@ -0,0 +1,128 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * This is a simple Logger implementation that other Loggers can inherit from.
+ *
+ * It simply delegates all log-level-specific methods to the `log` method to
+ * reduce boilerplate code that a simple Logger that does the same thing with
+ * messages regardless of the error level has to implement.
+ */
+abstract class AbstractLogger implements LoggerInterface
+{
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function emergency($message, array $context = array())
+    {
+        $this->log(LogLevel::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function alert($message, array $context = array())
+    {
+        $this->log(LogLevel::ALERT, $message, $context);
+    }
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function critical($message, array $context = array())
+    {
+        $this->log(LogLevel::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function error($message, array $context = array())
+    {
+        $this->log(LogLevel::ERROR, $message, $context);
+    }
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function warning($message, array $context = array())
+    {
+        $this->log(LogLevel::WARNING, $message, $context);
+    }
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function notice($message, array $context = array())
+    {
+        $this->log(LogLevel::NOTICE, $message, $context);
+    }
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function info($message, array $context = array())
+    {
+        $this->log(LogLevel::INFO, $message, $context);
+    }
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function debug($message, array $context = array())
+    {
+        $this->log(LogLevel::DEBUG, $message, $context);
+    }
+}

lib/psr/log/Psr/Log/InvalidArgumentException.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Psr\Log;
+
+class InvalidArgumentException extends \InvalidArgumentException
+{
+}

lib/psr/log/Psr/Log/LogLevel.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Describes log levels.
+ */
+class LogLevel
+{
+    const EMERGENCY = 'emergency';
+    const ALERT     = 'alert';
+    const CRITICAL  = 'critical';
+    const ERROR     = 'error';
+    const WARNING   = 'warning';
+    const NOTICE    = 'notice';
+    const INFO      = 'info';
+    const DEBUG     = 'debug';
+}

lib/psr/log/Psr/Log/LoggerAwareInterface.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Describes a logger-aware instance.
+ */
+interface LoggerAwareInterface
+{
+    /**
+     * Sets a logger instance on the object.
+     *
+     * @param LoggerInterface $logger
+     *
+     * @return void
+     */
+    public function setLogger(LoggerInterface $logger);
+}

lib/psr/log/Psr/Log/LoggerAwareTrait.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Basic Implementation of LoggerAwareInterface.
+ */
+trait LoggerAwareTrait
+{
+    /**
+     * The logger instance.
+     *
+     * @var LoggerInterface
+     */
+    protected $logger;
+
+    /**
+     * Sets a logger.
+     *
+     * @param LoggerInterface $logger
+     */
+    public function setLogger(LoggerInterface $logger)
+    {
+        $this->logger = $logger;
+    }
+}

lib/psr/log/Psr/Log/LoggerInterface.php

@@ -0,0 +1,123 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Describes a logger instance.
+ *
+ * The message MUST be a string or object implementing __toString().
+ *
+ * The message MAY contain placeholders in the form: {foo} where foo
+ * will be replaced by the context data in key "foo".
+ *
+ * The context array can contain arbitrary data. The only assumption that
+ * can be made by implementors is that if an Exception instance is given
+ * to produce a stack trace, it MUST be in a key named "exception".
+ *
+ * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md
+ * for the full interface specification.
+ */
+interface LoggerInterface
+{
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function emergency($message, array $context = array());
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function alert($message, array $context = array());
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function critical($message, array $context = array());
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function error($message, array $context = array());
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function warning($message, array $context = array());
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function notice($message, array $context = array());
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function info($message, array $context = array());
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function debug($message, array $context = array());
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed  $level
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function log($level, $message, array $context = array());
+}

lib/psr/log/Psr/Log/LoggerTrait.php

@@ -0,0 +1,140 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * This is a simple Logger trait that classes unable to extend AbstractLogger
+ * (because they extend another class, etc) can include.
+ *
+ * It simply delegates all log-level-specific methods to the `log` method to
+ * reduce boilerplate code that a simple Logger that does the same thing with
+ * messages regardless of the error level has to implement.
+ */
+trait LoggerTrait
+{
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function emergency($message, array $context = array())
+    {
+        $this->log(LogLevel::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function alert($message, array $context = array())
+    {
+        $this->log(LogLevel::ALERT, $message, $context);
+    }
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function critical($message, array $context = array())
+    {
+        $this->log(LogLevel::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function error($message, array $context = array())
+    {
+        $this->log(LogLevel::ERROR, $message, $context);
+    }
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function warning($message, array $context = array())
+    {
+        $this->log(LogLevel::WARNING, $message, $context);
+    }
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function notice($message, array $context = array())
+    {
+        $this->log(LogLevel::NOTICE, $message, $context);
+    }
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function info($message, array $context = array())
+    {
+        $this->log(LogLevel::INFO, $message, $context);
+    }
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function debug($message, array $context = array())
+    {
+        $this->log(LogLevel::DEBUG, $message, $context);
+    }
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed  $level
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    abstract public function log($level, $message, array $context = array());
+}

lib/psr/log/Psr/Log/NullLogger.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * This Logger can be used to avoid conditional log calls.
+ *
+ * Logging should always be optional, and if no logger is provided to your
+ * library creating a NullLogger instance to have something to throw logs at
+ * is a good way to avoid littering your code with `if ($this->logger) { }`
+ * blocks.
+ */
+class NullLogger extends AbstractLogger
+{
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed  $level
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function log($level, $message, array $context = array())
+    {
+        // noop
+    }
+}

lib/psr/log/Psr/Log/Test/LoggerInterfaceTest.php

@@ -0,0 +1,144 @@
+<?php
+
+namespace Psr\Log\Test;
+
+use Psr\Log\LoggerInterface;
+use Psr\Log\LogLevel;
+
+/**
+ * Provides a base test class for ensuring compliance with the LoggerInterface.
+ *
+ * Implementors can extend the class and implement abstract methods to run this
+ * as part of their test suite.
+ */
+abstract class LoggerInterfaceTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @return LoggerInterface
+     */
+    abstract public function getLogger();
+
+    /**
+     * This must return the log messages in order.
+     *
+     * The simple formatting of the messages is: "<LOG LEVEL> <MESSAGE>".
+     *
+     * Example ->error('Foo') would yield "error Foo".
+     *
+     * @return string[]
+     */
+    abstract public function getLogs();
+
+    public function testImplements()
+    {
+        $this->assertInstanceOf('Psr\Log\LoggerInterface', $this->getLogger());
+    }
+
+    /**
+     * @dataProvider provideLevelsAndMessages
+     */
+    public function testLogsAtAllLevels($level, $message)
+    {
+        $logger = $this->getLogger();
+        $logger->{$level}($message, array('user' => 'Bob'));
+        $logger->log($level, $message, array('user' => 'Bob'));
+
+        $expected = array(
+            $level.' message of level '.$level.' with context: Bob',
+            $level.' message of level '.$level.' with context: Bob',
+        );
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function provideLevelsAndMessages()
+    {
+        return array(
+            LogLevel::EMERGENCY => array(LogLevel::EMERGENCY, 'message of level emergency with context: {user}'),
+            LogLevel::ALERT => array(LogLevel::ALERT, 'message of level alert with context: {user}'),
+            LogLevel::CRITICAL => array(LogLevel::CRITICAL, 'message of level critical with context: {user}'),
+            LogLevel::ERROR => array(LogLevel::ERROR, 'message of level error with context: {user}'),
+            LogLevel::WARNING => array(LogLevel::WARNING, 'message of level warning with context: {user}'),
+            LogLevel::NOTICE => array(LogLevel::NOTICE, 'message of level notice with context: {user}'),
+            LogLevel::INFO => array(LogLevel::INFO, 'message of level info with context: {user}'),
+            LogLevel::DEBUG => array(LogLevel::DEBUG, 'message of level debug with context: {user}'),
+        );
+    }
+
+    /**
+     * @expectedException \Psr\Log\InvalidArgumentException
+     */
+    public function testThrowsOnInvalidLevel()
+    {
+        $logger = $this->getLogger();
+        $logger->log('invalid level', 'Foo');
+    }
+
+    public function testContextReplacement()
+    {
+        $logger = $this->getLogger();
+        $logger->info('{Message {nothing} {user} {foo.bar} a}', array('user' => 'Bob', 'foo.bar' => 'Bar'));
+
+        $expected = array('info {Message {nothing} Bob Bar a}');
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function testObjectCastToString()
+    {
+        if (method_exists($this, 'createPartialMock')) {
+            $dummy = $this->createPartialMock('Psr\Log\Test\DummyTest', array('__toString'));
+        } else {
+            $dummy = $this->getMock('Psr\Log\Test\DummyTest', array('__toString'));
+        }
+        $dummy->expects($this->once())
+            ->method('__toString')
+            ->will($this->returnValue('DUMMY'));
+
+        $this->getLogger()->warning($dummy);
+
+        $expected = array('warning DUMMY');
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function testContextCanContainAnything()
+    {
+        $closed = fopen('php://memory', 'r');
+        fclose($closed);
+
+        $context = array(
+            'bool' => true,
+            'null' => null,
+            'string' => 'Foo',
+            'int' => 0,
+            'float' => 0.5,
+            'nested' => array('with object' => new DummyTest),
+            'object' => new \DateTime,
+            'resource' => fopen('php://memory', 'r'),
+            'closed' => $closed,
+        );
+
+        $this->getLogger()->warning('Crazy context data', $context);
+
+        $expected = array('warning Crazy context data');
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function testContextExceptionKeyCanBeExceptionOrOtherValues()
+    {
+        $logger = $this->getLogger();
+        $logger->warning('Random message', array('exception' => 'oops'));
+        $logger->critical('Uncaught Exception!', array('exception' => new \LogicException('Fail')));
+
+        $expected = array(
+            'warning Random message',
+            'critical Uncaught Exception!'
+        );
+        $this->assertEquals($expected, $this->getLogs());
+    }
+}
+
+class DummyTest
+{
+    public function __toString()
+    {
+    }
+}

lib/psr/log/Psr/Log/Test/TestLogger.php

@@ -0,0 +1,146 @@
+<?php
+
+namespace Psr\Log\Test;
+
+use Psr\Log\AbstractLogger;
+
+/**
+ * Used for testing purposes.
+ *
+ * It records all records and gives you access to them for verification.
+ *
+ * @method bool hasEmergency($record)
+ * @method bool hasAlert($record)
+ * @method bool hasCritical($record)
+ * @method bool hasError($record)
+ * @method bool hasWarning($record)
+ * @method bool hasNotice($record)
+ * @method bool hasInfo($record)
+ * @method bool hasDebug($record)
+ *
+ * @method bool hasEmergencyRecords()
+ * @method bool hasAlertRecords()
+ * @method bool hasCriticalRecords()
+ * @method bool hasErrorRecords()
+ * @method bool hasWarningRecords()
+ * @method bool hasNoticeRecords()
+ * @method bool hasInfoRecords()
+ * @method bool hasDebugRecords()
+ *
+ * @method bool hasEmergencyThatContains($message)
+ * @method bool hasAlertThatContains($message)
+ * @method bool hasCriticalThatContains($message)
+ * @method bool hasErrorThatContains($message)
+ * @method bool hasWarningThatContains($message)
+ * @method bool hasNoticeThatContains($message)
+ * @method bool hasInfoThatContains($message)
+ * @method bool hasDebugThatContains($message)
+ *
+ * @method bool hasEmergencyThatMatches($message)
+ * @method bool hasAlertThatMatches($message)
+ * @method bool hasCriticalThatMatches($message)
+ * @method bool hasErrorThatMatches($message)
+ * @method bool hasWarningThatMatches($message)
+ * @method bool hasNoticeThatMatches($message)
+ * @method bool hasInfoThatMatches($message)
+ * @method bool hasDebugThatMatches($message)
+ *
+ * @method bool hasEmergencyThatPasses($message)
+ * @method bool hasAlertThatPasses($message)
+ * @method bool hasCriticalThatPasses($message)
+ * @method bool hasErrorThatPasses($message)
+ * @method bool hasWarningThatPasses($message)
+ * @method bool hasNoticeThatPasses($message)
+ * @method bool hasInfoThatPasses($message)
+ * @method bool hasDebugThatPasses($message)
+ */
+class TestLogger extends AbstractLogger
+{
+    /**
+     * @var array
+     */
+    public $records = [];
+
+    public $recordsByLevel = [];
+
+    /**
+     * @inheritdoc
+     */
+    public function log($level, $message, array $context = [])
+    {
+        $record = [
+            'level' => $level,
+            'message' => $message,
+            'context' => $context,
+        ];
+
+        $this->recordsByLevel[$record['level']][] = $record;
+        $this->records[] = $record;
+    }
+
+    public function hasRecords($level)
+    {
+        return isset($this->recordsByLevel[$level]);
+    }
+
+    public function hasRecord($record, $level)
+    {
+        if (is_string($record)) {
+            $record = ['message' => $record];
+        }
+        return $this->hasRecordThatPasses(function ($rec) use ($record) {
+            if ($rec['message'] !== $record['message']) {
+                return false;
+            }
+            if (isset($record['context']) && $rec['context'] !== $record['context']) {
+                return false;
+            }
+            return true;
+        }, $level);
+    }
+
+    public function hasRecordThatContains($message, $level)
+    {
+        return $this->hasRecordThatPasses(function ($rec) use ($message) {
+            return strpos($rec['message'], $message) !== false;
+        }, $level);
+    }
+
+    public function hasRecordThatMatches($regex, $level)
+    {
+        return $this->hasRecordThatPasses(function ($rec) use ($regex) {
+            return preg_match($regex, $rec['message']) > 0;
+        }, $level);
+    }
+
+    public function hasRecordThatPasses(callable $predicate, $level)
+    {
+        if (!isset($this->recordsByLevel[$level])) {
+            return false;
+        }
+        foreach ($this->recordsByLevel[$level] as $i => $rec) {
+            if (call_user_func($predicate, $rec, $i)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public function __call($method, $args)
+    {
+        if (preg_match('/(.*)(Debug|Info|Notice|Warning|Error|Critical|Alert|Emergency)(.*)/', $method, $matches) > 0) {
+            $genericMethod = $matches[1] . ('Records' !== $matches[3] ? 'Record' : '') . $matches[3];
+            $level = strtolower($matches[2]);
+            if (method_exists($this, $genericMethod)) {
+                $args[] = $level;
+                return call_user_func_array([$this, $genericMethod], $args);
+            }
+        }
+        throw new \BadMethodCallException('Call to undefined method ' . get_class($this) . '::' . $method . '()');
+    }
+
+    public function reset()
+    {
+        $this->records = [];
+    }
+}

lib/psr/log/README.md

@@ -0,0 +1,52 @@
+PSR Log
+=======
+
+This repository holds all interfaces/classes/traits related to
+[PSR-3](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md).
+
+Note that this is not a logger of its own. It is merely an interface that
+describes a logger. See the specification for more details.
+
+Installation
+------------
+
+```bash
+composer require psr/log
+```
+
+Usage
+-----
+
+If you need a logger, you can use the interface like this:
+
+```php
+<?php
+
+use Psr\Log\LoggerInterface;
+
+class Foo
+{
+    private $logger;
+
+    public function __construct(LoggerInterface $logger = null)
+    {
+        $this->logger = $logger;
+    }
+
+    public function doSomething()
+    {
+        if ($this->logger) {
+            $this->logger->info('Doing work');
+        }
+
+        // do something useful
+    }
+}
+```
+
+You can then pick one of the implementations of the interface to get a logger.
+
+If you want to implement the interface, you can require this package and
+implement `Psr\Log\LoggerInterface` in your code. Please read the
+[specification text](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md)
+for details.

lib/psr/log/composer.json

@@ -0,0 +1,26 @@
+{
+    "name": "psr/log",
+    "description": "Common interface for logging libraries",
+    "keywords": ["psr", "psr-3", "log"],
+    "homepage": "https://github.com/php-fig/log",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\Log\\": "Psr/Log/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}

lib/psr/simple-cache/.editorconfig

@@ -0,0 +1,12 @@
+; This file is for unifying the coding style for different editors and IDEs.
+; More information at http://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_size = 4
+indent_style = space
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true

lib/psr/simple-cache/LICENSE.md

@@ -0,0 +1,21 @@
+# The MIT License (MIT)
+
+Copyright (c) 2016 PHP Framework Interoperability Group
+
+> 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.

lib/psr/simple-cache/README.md

@@ -0,0 +1,8 @@
+PHP FIG Simple Cache PSR
+========================
+
+This repository holds all interfaces related to PSR-16.
+
+Note that this is not a cache implementation of its own. It is merely an interface that describes a cache implementation. See [the specification](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-16-simple-cache.md) for more details.
+
+You can find implementations of the specification by looking for packages providing the [psr/simple-cache-implementation](https://packagist.org/providers/psr/simple-cache-implementation) virtual package.

lib/psr/simple-cache/composer.json

@@ -0,0 +1,25 @@
+{
+    "name": "psr/simple-cache",
+    "description": "Common interfaces for simple caching",
+    "keywords": ["psr", "psr-16", "cache", "simple-cache", "caching"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\SimpleCache\\": "src/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}

lib/psr/simple-cache/src/CacheException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Psr\SimpleCache;
+
+/**
+ * Interface used for all types of exceptions thrown by the implementing library.
+ */
+interface CacheException
+{
+}

lib/psr/simple-cache/src/CacheInterface.php

@@ -0,0 +1,114 @@
+<?php
+
+namespace Psr\SimpleCache;
+
+interface CacheInterface
+{
+    /**
+     * Fetches a value from the cache.
+     *
+     * @param string $key     The unique key of this item in the cache.
+     * @param mixed  $default Default value to return if the key does not exist.
+     *
+     * @return mixed The value of the item from the cache, or $default in case of cache miss.
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function get($key, $default = null);
+
+    /**
+     * Persists data in the cache, uniquely referenced by a key with an optional expiration TTL time.
+     *
+     * @param string                 $key   The key of the item to store.
+     * @param mixed                  $value The value of the item to store, must be serializable.
+     * @param null|int|\DateInterval $ttl   Optional. The TTL value of this item. If no value is sent and
+     *                                      the driver supports TTL then the library may set a default value
+     *                                      for it or let the driver take care of that.
+     *
+     * @return bool True on success and false on failure.
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function set($key, $value, $ttl = null);
+
+    /**
+     * Delete an item from the cache by its unique key.
+     *
+     * @param string $key The unique cache key of the item to delete.
+     *
+     * @return bool True if the item was successfully removed. False if there was an error.
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function delete($key);
+
+    /**
+     * Wipes clean the entire cache's keys.
+     *
+     * @return bool True on success and false on failure.
+     */
+    public function clear();
+
+    /**
+     * Obtains multiple cache items by their unique keys.
+     *
+     * @param iterable $keys    A list of keys that can obtained in a single operation.
+     * @param mixed    $default Default value to return for keys that do not exist.
+     *
+     * @return iterable A list of key => value pairs. Cache keys that do not exist or are stale will have $default as value.
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if $keys is neither an array nor a Traversable,
+     *   or if any of the $keys are not a legal value.
+     */
+    public function getMultiple($keys, $default = null);
+
+    /**
+     * Persists a set of key => value pairs in the cache, with an optional TTL.
+     *
+     * @param iterable               $values A list of key => value pairs for a multiple-set operation.
+     * @param null|int|\DateInterval $ttl    Optional. The TTL value of this item. If no value is sent and
+     *                                       the driver supports TTL then the library may set a default value
+     *                                       for it or let the driver take care of that.
+     *
+     * @return bool True on success and false on failure.
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if $values is neither an array nor a Traversable,
+     *   or if any of the $values are not a legal value.
+     */
+    public function setMultiple($values, $ttl = null);
+
+    /**
+     * Deletes multiple cache items in a single operation.
+     *
+     * @param iterable $keys A list of string-based keys to be deleted.
+     *
+     * @return bool True if the items were successfully removed. False if there was an error.
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if $keys is neither an array nor a Traversable,
+     *   or if any of the $keys are not a legal value.
+     */
+    public function deleteMultiple($keys);
+
+    /**
+     * Determines whether an item is present in the cache.
+     *
+     * NOTE: It is recommended that has() is only to be used for cache warming type purposes
+     * and not to be used within your live applications operations for get/set, as this method
+     * is subject to a race condition where your has() will return true and immediately after,
+     * another script can remove it making the state of your app out of date.
+     *
+     * @param string $key The cache item key.
+     *
+     * @return bool
+     *
+     * @throws \Psr\SimpleCache\InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function has($key);
+}

lib/psr/simple-cache/src/InvalidArgumentException.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Psr\SimpleCache;
+
+/**
+ * Exception interface for invalid cache arguments.
+ *
+ * When an invalid argument is passed it must throw an exception which implements
+ * this interface
+ */
+interface InvalidArgumentException extends CacheException
+{
+}

lib/symfony/cache/.gitignore

@@ -0,0 +1,3 @@
+composer.lock
+phpunit.xml
+vendor/

lib/symfony/cache/Adapter/AbstractAdapter.php

@@ -0,0 +1,307 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\AbstractTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+abstract class AbstractAdapter implements AdapterInterface, LoggerAwareInterface, ResettableInterface
+{
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = ':';
+
+    use AbstractTrait;
+
+    private static $apcuSupported;
+    private static $phpFilesSupported;
+
+    private $createCacheItem;
+    private $mergeByLifetime;
+
+    /**
+     * @param string $namespace
+     * @param int    $defaultLifetime
+     */
+    protected function __construct($namespace = '', $defaultLifetime = 0)
+    {
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).static::NS_SEPARATOR;
+        if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
+            throw new InvalidArgumentException(sprintf('Namespace must be %d chars max, %d given ("%s")', $this->maxIdLength - 24, \strlen($namespace), $namespace));
+        }
+        $this->createCacheItem = \Closure::bind(
+            function ($key, $value, $isHit) use ($defaultLifetime) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+                $item->defaultLifetime = $defaultLifetime;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $getId = function ($key) { return $this->getId((string) $key); };
+        $this->mergeByLifetime = \Closure::bind(
+            function ($deferred, $namespace, &$expiredIds) use ($getId) {
+                $byLifetime = [];
+                $now = time();
+                $expiredIds = [];
+
+                foreach ($deferred as $key => $item) {
+                    if (null === $item->expiry) {
+                        $byLifetime[0 < $item->defaultLifetime ? $item->defaultLifetime : 0][$getId($key)] = $item->value;
+                    } elseif ($item->expiry > $now) {
+                        $byLifetime[$item->expiry - $now][$getId($key)] = $item->value;
+                    } else {
+                        $expiredIds[] = $getId($key);
+                    }
+                }
+
+                return $byLifetime;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * @param string               $namespace
+     * @param int                  $defaultLifetime
+     * @param string               $version
+     * @param string               $directory
+     * @param LoggerInterface|null $logger
+     *
+     * @return AdapterInterface
+     */
+    public static function createSystemCache($namespace, $defaultLifetime, $version, $directory, LoggerInterface $logger = null)
+    {
+        if (null === self::$apcuSupported) {
+            self::$apcuSupported = ApcuAdapter::isSupported();
+        }
+
+        if (!self::$apcuSupported && null === self::$phpFilesSupported) {
+            self::$phpFilesSupported = PhpFilesAdapter::isSupported();
+        }
+
+        if (self::$phpFilesSupported) {
+            $opcache = new PhpFilesAdapter($namespace, $defaultLifetime, $directory);
+            if (null !== $logger) {
+                $opcache->setLogger($logger);
+            }
+
+            return $opcache;
+        }
+
+        $fs = new FilesystemAdapter($namespace, $defaultLifetime, $directory);
+        if (null !== $logger) {
+            $fs->setLogger($logger);
+        }
+        if (!self::$apcuSupported) {
+            return $fs;
+        }
+
+        $apcu = new ApcuAdapter($namespace, (int) $defaultLifetime / 5, $version);
+        if ('cli' === \PHP_SAPI && !filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN)) {
+            $apcu->setLogger(new NullLogger());
+        } elseif (null !== $logger) {
+            $apcu->setLogger($logger);
+        }
+
+        return new ChainAdapter([$apcu, $fs]);
+    }
+
+    public static function createConnection($dsn, array $options = [])
+    {
+        if (!\is_string($dsn)) {
+            throw new InvalidArgumentException(sprintf('The %s() method expect argument #1 to be string, %s given.', __METHOD__, \gettype($dsn)));
+        }
+        if (0 === strpos($dsn, 'redis://')) {
+            return RedisAdapter::createConnection($dsn, $options);
+        }
+        if (0 === strpos($dsn, 'memcached://')) {
+            return MemcachedAdapter::createConnection($dsn, $options);
+        }
+
+        throw new InvalidArgumentException(sprintf('Unsupported DSN: %s.', $dsn));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $id = $this->getId($key);
+
+        $f = $this->createCacheItem;
+        $isHit = false;
+        $value = null;
+
+        try {
+            foreach ($this->doFetch([$id]) as $value) {
+                $isHit = true;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch key "{key}"', ['key' => $key, 'exception' => $e]);
+        }
+
+        return $f($key, $value, $isHit);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $ids = [];
+
+        foreach ($keys as $key) {
+            $ids[] = $this->getId($key);
+        }
+        try {
+            $items = $this->doFetch($ids);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch requested items', ['keys' => $keys, 'exception' => $e]);
+            $items = [];
+        }
+        $ids = array_combine($ids, $keys);
+
+        return $this->generateItems($items, $ids);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        $ok = true;
+        $byLifetime = $this->mergeByLifetime;
+        $byLifetime = $byLifetime($this->deferred, $this->namespace, $expiredIds);
+        $retry = $this->deferred = [];
+
+        if ($expiredIds) {
+            $this->doDelete($expiredIds);
+        }
+        foreach ($byLifetime as $lifetime => $values) {
+            try {
+                $e = $this->doSave($values, $lifetime);
+            } catch (\Exception $e) {
+            }
+            if (true === $e || [] === $e) {
+                continue;
+            }
+            if (\is_array($e) || 1 === \count($values)) {
+                foreach (\is_array($e) ? $e : array_keys($values) as $id) {
+                    $ok = false;
+                    $v = $values[$id];
+                    $type = \is_object($v) ? \get_class($v) : \gettype($v);
+                    CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => substr($id, \strlen($this->namespace)), 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null]);
+                }
+            } else {
+                foreach ($values as $id => $v) {
+                    $retry[$lifetime][] = $id;
+                }
+            }
+        }
+
+        // When bulk-save failed, retry each item individually
+        foreach ($retry as $lifetime => $ids) {
+            foreach ($ids as $id) {
+                try {
+                    $v = $byLifetime[$lifetime][$id];
+                    $e = $this->doSave([$id => $v], $lifetime);
+                } catch (\Exception $e) {
+                }
+                if (true === $e || [] === $e) {
+                    continue;
+                }
+                $ok = false;
+                $type = \is_object($v) ? \get_class($v) : \gettype($v);
+                CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => substr($id, \strlen($this->namespace)), 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null]);
+            }
+        }
+
+        return $ok;
+    }
+
+    public function __destruct()
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+    }
+
+    private function generateItems($items, &$keys)
+    {
+        $f = $this->createCacheItem;
+
+        try {
+            foreach ($items as $id => $value) {
+                if (!isset($keys[$id])) {
+                    $id = key($keys);
+                }
+                $key = $keys[$id];
+                unset($keys[$id]);
+                yield $key => $f($key, $value, true);
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch requested items', ['keys' => array_values($keys), 'exception' => $e]);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+}

lib/symfony/cache/Adapter/AdapterInterface.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * Interface for adapters managing instances of Symfony's CacheItem.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+interface AdapterInterface extends CacheItemPoolInterface
+{
+    /**
+     * {@inheritdoc}
+     *
+     * @return CacheItem
+     */
+    public function getItem($key);
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Traversable|CacheItem[]
+     */
+    public function getItems(array $keys = []);
+}

lib/symfony/cache/Adapter/ApcuAdapter.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Traits\ApcuTrait;
+
+class ApcuAdapter extends AbstractAdapter
+{
+    use ApcuTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $version
+     *
+     * @throws CacheException if APCu is not enabled
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $version = null)
+    {
+        $this->init($namespace, $defaultLifetime, $version);
+    }
+}

lib/symfony/cache/Adapter/ArrayAdapter.php

@@ -0,0 +1,155 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Log\LoggerAwareInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ArrayTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ArrayAdapter implements AdapterInterface, LoggerAwareInterface, ResettableInterface
+{
+    use ArrayTrait;
+
+    private $createCacheItem;
+
+    /**
+     * @param int  $defaultLifetime
+     * @param bool $storeSerialized Disabling serialization can lead to cache corruptions when storing mutable values but increases performance otherwise
+     */
+    public function __construct($defaultLifetime = 0, $storeSerialized = true)
+    {
+        $this->storeSerialized = $storeSerialized;
+        $this->createCacheItem = \Closure::bind(
+            function ($key, $value, $isHit) use ($defaultLifetime) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+                $item->defaultLifetime = $defaultLifetime;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $isHit = $this->hasItem($key);
+        try {
+            if (!$isHit) {
+                $this->values[$key] = $value = null;
+            } elseif (!$this->storeSerialized) {
+                $value = $this->values[$key];
+            } elseif ('b:0;' === $value = $this->values[$key]) {
+                $value = false;
+            } elseif (false === $value = unserialize($value)) {
+                $this->values[$key] = $value = null;
+                $isHit = false;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to unserialize key "{key}"', ['key' => $key, 'exception' => $e]);
+            $this->values[$key] = $value = null;
+            $isHit = false;
+        }
+        $f = $this->createCacheItem;
+
+        return $f($key, $value, $isHit);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        foreach ($keys as $key) {
+            CacheItem::validateKey($key);
+        }
+
+        return $this->generateItems($keys, time(), $this->createCacheItem);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        foreach ($keys as $key) {
+            $this->deleteItem($key);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $item = (array) $item;
+        $key = $item["\0*\0key"];
+        $value = $item["\0*\0value"];
+        $expiry = $item["\0*\0expiry"];
+
+        if (null !== $expiry && $expiry <= time()) {
+            $this->deleteItem($key);
+
+            return true;
+        }
+        if ($this->storeSerialized) {
+            try {
+                $value = serialize($value);
+            } catch (\Exception $e) {
+                $type = \is_object($value) ? \get_class($value) : \gettype($value);
+                CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', ['key' => $key, 'type' => $type, 'exception' => $e]);
+
+                return false;
+            }
+        }
+        if (null === $expiry && 0 < $item["\0*\0defaultLifetime"]) {
+            $expiry = time() + $item["\0*\0defaultLifetime"];
+        }
+
+        $this->values[$key] = $value;
+        $this->expiries[$key] = null !== $expiry ? $expiry : PHP_INT_MAX;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return $this->save($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return true;
+    }
+}

lib/symfony/cache/Adapter/ChainAdapter.php

@@ -0,0 +1,273 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * Chains several adapters together.
+ *
+ * Cached items are fetched from the first adapter having them in its data store.
+ * They are saved and deleted in all adapters at once.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class ChainAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    private $adapters = [];
+    private $adapterCount;
+    private $syncItem;
+
+    /**
+     * @param CacheItemPoolInterface[] $adapters        The ordered list of adapters used to fetch cached items
+     * @param int                      $defaultLifetime The default lifetime of items propagated from lower adapters to upper ones
+     */
+    public function __construct(array $adapters, $defaultLifetime = 0)
+    {
+        if (!$adapters) {
+            throw new InvalidArgumentException('At least one adapter must be specified.');
+        }
+
+        foreach ($adapters as $adapter) {
+            if (!$adapter instanceof CacheItemPoolInterface) {
+                throw new InvalidArgumentException(sprintf('The class "%s" does not implement the "%s" interface.', \get_class($adapter), CacheItemPoolInterface::class));
+            }
+
+            if ($adapter instanceof AdapterInterface) {
+                $this->adapters[] = $adapter;
+            } else {
+                $this->adapters[] = new ProxyAdapter($adapter);
+            }
+        }
+        $this->adapterCount = \count($this->adapters);
+
+        $this->syncItem = \Closure::bind(
+            function ($sourceItem, $item) use ($defaultLifetime) {
+                $item->value = $sourceItem->value;
+                $item->expiry = $sourceItem->expiry;
+                $item->isHit = $sourceItem->isHit;
+
+                if (0 < $sourceItem->defaultLifetime && $sourceItem->defaultLifetime < $defaultLifetime) {
+                    $defaultLifetime = $sourceItem->defaultLifetime;
+                }
+                if (0 < $defaultLifetime && ($item->defaultLifetime <= 0 || $defaultLifetime < $item->defaultLifetime)) {
+                    $item->defaultLifetime = $defaultLifetime;
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $syncItem = $this->syncItem;
+        $misses = [];
+
+        foreach ($this->adapters as $i => $adapter) {
+            $item = $adapter->getItem($key);
+
+            if ($item->isHit()) {
+                while (0 <= --$i) {
+                    $this->adapters[$i]->save($syncItem($item, $misses[$i]));
+                }
+
+                return $item;
+            }
+
+            $misses[$i] = $item;
+        }
+
+        return $item;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        return $this->generateItems($this->adapters[0]->getItems($keys), 0);
+    }
+
+    private function generateItems($items, $adapterIndex)
+    {
+        $missing = [];
+        $misses = [];
+        $nextAdapterIndex = $adapterIndex + 1;
+        $nextAdapter = isset($this->adapters[$nextAdapterIndex]) ? $this->adapters[$nextAdapterIndex] : null;
+
+        foreach ($items as $k => $item) {
+            if (!$nextAdapter || $item->isHit()) {
+                yield $k => $item;
+            } else {
+                $missing[] = $k;
+                $misses[$k] = $item;
+            }
+        }
+
+        if ($missing) {
+            $syncItem = $this->syncItem;
+            $adapter = $this->adapters[$adapterIndex];
+            $items = $this->generateItems($nextAdapter->getItems($missing), $nextAdapterIndex);
+
+            foreach ($items as $k => $item) {
+                if ($item->isHit()) {
+                    $adapter->save($syncItem($item, $misses[$k]));
+                }
+
+                yield $k => $item;
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        foreach ($this->adapters as $adapter) {
+            if ($adapter->hasItem($key)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $cleared = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $cleared = $this->adapters[$i]->clear() && $cleared;
+        }
+
+        return $cleared;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        $deleted = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $deleted = $this->adapters[$i]->deleteItem($key) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $deleted = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $deleted = $this->adapters[$i]->deleteItems($keys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        $saved = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $saved = $this->adapters[$i]->save($item) && $saved;
+        }
+
+        return $saved;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        $saved = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $saved = $this->adapters[$i]->saveDeferred($item) && $saved;
+        }
+
+        return $saved;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        $committed = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $committed = $this->adapters[$i]->commit() && $committed;
+        }
+
+        return $committed;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        $pruned = true;
+
+        foreach ($this->adapters as $adapter) {
+            if ($adapter instanceof PruneableInterface) {
+                $pruned = $adapter->prune() && $pruned;
+            }
+        }
+
+        return $pruned;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        foreach ($this->adapters as $adapter) {
+            if ($adapter instanceof ResettableInterface) {
+                $adapter->reset();
+            }
+        }
+    }
+}

lib/symfony/cache/Adapter/DoctrineAdapter.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Doctrine\Common\Cache\CacheProvider;
+use Symfony\Component\Cache\Traits\DoctrineTrait;
+
+class DoctrineAdapter extends AbstractAdapter
+{
+    use DoctrineTrait;
+
+    /**
+     * @param CacheProvider $provider
+     * @param string        $namespace
+     * @param int           $defaultLifetime
+     */
+    public function __construct(CacheProvider $provider, $namespace = '', $defaultLifetime = 0)
+    {
+        parent::__construct('', $defaultLifetime);
+        $this->provider = $provider;
+        $provider->setNamespace($namespace);
+    }
+}

lib/symfony/cache/Adapter/FilesystemAdapter.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\FilesystemTrait;
+
+class FilesystemAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use FilesystemTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $directory
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $directory = null)
+    {
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+    }
+}

lib/symfony/cache/Adapter/MemcachedAdapter.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Traits\MemcachedTrait;
+
+class MemcachedAdapter extends AbstractAdapter
+{
+    use MemcachedTrait;
+
+    protected $maxIdLength = 250;
+
+    /**
+     * Using a MemcachedAdapter with a TagAwareAdapter for storing tags is discouraged.
+     * Using a RedisAdapter is recommended instead. If you cannot do otherwise, be aware that:
+     * - the Memcached::OPT_BINARY_PROTOCOL must be enabled
+     *   (that's the default when using MemcachedAdapter::createConnection());
+     * - tags eviction by Memcached's LRU algorithm will break by-tags invalidation;
+     *   your Memcached memory should be large enough to never trigger LRU.
+     *
+     * Using a MemcachedAdapter as a pure items store is fine.
+     */
+    public function __construct(\Memcached $client, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->init($client, $namespace, $defaultLifetime);
+    }
+}

lib/symfony/cache/Adapter/NullAdapter.php

@@ -0,0 +1,121 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ */
+class NullAdapter implements AdapterInterface
+{
+    private $createCacheItem;
+
+    public function __construct()
+    {
+        $this->createCacheItem = \Closure::bind(
+            function ($key) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->isHit = false;
+
+                return $item;
+            },
+            $this,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $f = $this->createCacheItem;
+
+        return $f($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        return $this->generateItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return false;
+    }
+
+    private function generateItems(array $keys)
+    {
+        $f = $this->createCacheItem;
+
+        foreach ($keys as $key) {
+            yield $key => $f($key);
+        }
+    }
+}

lib/symfony/cache/Adapter/PdoAdapter.php

@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Doctrine\DBAL\Connection;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\PdoTrait;
+
+class PdoAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use PdoTrait;
+
+    protected $maxIdLength = 255;
+
+    /**
+     * You can either pass an existing database connection as PDO instance or
+     * a Doctrine DBAL Connection or a DSN string that will be used to
+     * lazy-connect to the database when the cache is actually used.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [default: cache_items]
+     *  * db_id_col: The column where to store the cache id [default: item_id]
+     *  * db_data_col: The column where to store the cache data [default: item_data]
+     *  * db_lifetime_col: The column where to store the lifetime [default: item_lifetime]
+     *  * db_time_col: The column where to store the timestamp [default: item_time]
+     *  * db_username: The username when lazy-connect [default: '']
+     *  * db_password: The password when lazy-connect [default: '']
+     *  * db_connection_options: An array of driver-specific connection options [default: []]
+     *
+     * @param \PDO|Connection|string $connOrDsn       A \PDO or Connection instance or DSN string or null
+     * @param string                 $namespace
+     * @param int                    $defaultLifetime
+     * @param array                  $options         An associative array of options
+     *
+     * @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
+     * @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
+     * @throws InvalidArgumentException When namespace contains invalid characters
+     */
+    public function __construct($connOrDsn, $namespace = '', $defaultLifetime = 0, array $options = [])
+    {
+        $this->init($connOrDsn, $namespace, $defaultLifetime, $options);
+    }
+}

lib/symfony/cache/Adapter/PhpArrayAdapter.php

@@ -0,0 +1,303 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\PhpArrayTrait;
+
+/**
+ * Caches items at warm up time using a PHP array that is stored in shared memory by OPCache since PHP 7.0.
+ * Warmed up items are read-only and run-time discovered items are cached using a fallback adapter.
+ *
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class PhpArrayAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    use PhpArrayTrait;
+
+    private $createCacheItem;
+
+    /**
+     * @param string           $file         The PHP file were values are cached
+     * @param AdapterInterface $fallbackPool A pool to fallback on when an item is not hit
+     */
+    public function __construct($file, AdapterInterface $fallbackPool)
+    {
+        $this->file = $file;
+        $this->pool = $fallbackPool;
+        $this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
+        $this->createCacheItem = \Closure::bind(
+            function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * This adapter should only be used on PHP 7.0+ to take advantage of how PHP
+     * stores arrays in its latest versions. This factory method decorates the given
+     * fallback pool with this adapter only if the current PHP version is supported.
+     *
+     * @param string                 $file         The PHP file were values are cached
+     * @param CacheItemPoolInterface $fallbackPool Fallback for old PHP versions or opcache disabled
+     *
+     * @return CacheItemPoolInterface
+     */
+    public static function create($file, CacheItemPoolInterface $fallbackPool)
+    {
+        // Shared memory is available in PHP 7.0+ with OPCache enabled and in HHVM
+        if ((\PHP_VERSION_ID >= 70000 && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN)) || \defined('HHVM_VERSION')) {
+            if (!$fallbackPool instanceof AdapterInterface) {
+                $fallbackPool = new ProxyAdapter($fallbackPool);
+            }
+
+            return new static($file, $fallbackPool);
+        }
+
+        return $fallbackPool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+        if (!isset($this->values[$key])) {
+            return $this->pool->getItem($key);
+        }
+
+        $value = $this->values[$key];
+        $isHit = true;
+
+        if ('N;' === $value) {
+            $value = null;
+        } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+            try {
+                $e = null;
+                $value = unserialize($value);
+            } catch (\Error $e) {
+            } catch (\Exception $e) {
+            }
+            if (null !== $e) {
+                $value = null;
+                $isHit = false;
+            }
+        }
+
+        $f = $this->createCacheItem;
+
+        return $f($key, $value, $isHit);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return $this->generateItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return isset($this->values[$key]) || $this->pool->hasItem($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$key]) && $this->pool->deleteItem($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $deleted = true;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
+            }
+
+            if (isset($this->values[$key])) {
+                $deleted = false;
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        if ($fallbackKeys) {
+            $deleted = $this->pool->deleteItems($fallbackKeys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$item->getKey()]) && $this->pool->save($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (null === $this->values) {
+            $this->initialize();
+        }
+
+        return !isset($this->values[$item->getKey()]) && $this->pool->saveDeferred($item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return $this->pool->commit();
+    }
+
+    /**
+     * @return \Generator
+     */
+    private function generateItems(array $keys)
+    {
+        $f = $this->createCacheItem;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (isset($this->values[$key])) {
+                $value = $this->values[$key];
+
+                if ('N;' === $value) {
+                    yield $key => $f($key, null, true);
+                } elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+                    try {
+                        yield $key => $f($key, unserialize($value), true);
+                    } catch (\Error $e) {
+                        yield $key => $f($key, null, false);
+                    } catch (\Exception $e) {
+                        yield $key => $f($key, null, false);
+                    }
+                } else {
+                    yield $key => $f($key, $value, true);
+                }
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+
+        if ($fallbackKeys) {
+            foreach ($this->pool->getItems($fallbackKeys) as $key => $item) {
+                yield $key => $item;
+            }
+        }
+    }
+
+    /**
+     * @throws \ReflectionException When $class is not found and is required
+     *
+     * @internal
+     */
+    public static function throwOnRequiredClass($class)
+    {
+        $e = new \ReflectionException("Class $class does not exist");
+        $trace = $e->getTrace();
+        $autoloadFrame = [
+            'function' => 'spl_autoload_call',
+            'args' => [$class],
+        ];
+        $i = 1 + array_search($autoloadFrame, $trace, true);
+
+        if (isset($trace[$i]['function']) && !isset($trace[$i]['class'])) {
+            switch ($trace[$i]['function']) {
+                case 'get_class_methods':
+                case 'get_class_vars':
+                case 'get_parent_class':
+                case 'is_a':
+                case 'is_subclass_of':
+                case 'class_exists':
+                case 'class_implements':
+                case 'class_parents':
+                case 'trait_exists':
+                case 'defined':
+                case 'interface_exists':
+                case 'method_exists':
+                case 'property_exists':
+                case 'is_callable':
+                    return;
+            }
+        }
+
+        throw $e;
+    }
+}

lib/symfony/cache/Adapter/PhpFilesAdapter.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\PhpFilesTrait;
+
+class PhpFilesAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use PhpFilesTrait;
+
+    /**
+     * @param string      $namespace
+     * @param int         $defaultLifetime
+     * @param string|null $directory
+     *
+     * @throws CacheException if OPcache is not enabled
+     */
+    public function __construct($namespace = '', $defaultLifetime = 0, $directory = null)
+    {
+        if (!static::isSupported()) {
+            throw new CacheException('OPcache is not enabled');
+        }
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+
+        $e = new \Exception();
+        $this->includeHandler = function () use ($e) { throw $e; };
+        $this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
+    }
+}

lib/symfony/cache/Adapter/ProxyAdapter.php

@@ -0,0 +1,199 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ProxyAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    use ProxyTrait;
+
+    private $namespace;
+    private $namespaceLen;
+    private $createCacheItem;
+    private $poolHash;
+
+    /**
+     * @param CacheItemPoolInterface $pool
+     * @param string                 $namespace
+     * @param int                    $defaultLifetime
+     */
+    public function __construct(CacheItemPoolInterface $pool, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->pool = $pool;
+        $this->poolHash = $poolHash = spl_object_hash($pool);
+        $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace);
+        $this->namespaceLen = \strlen($namespace);
+        $this->createCacheItem = \Closure::bind(
+            function ($key, $innerItem) use ($defaultLifetime, $poolHash) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->defaultLifetime = $defaultLifetime;
+                $item->poolHash = $poolHash;
+
+                if (null !== $innerItem) {
+                    $item->value = $innerItem->get();
+                    $item->isHit = $innerItem->isHit();
+                    $item->innerItem = $innerItem;
+                    $innerItem->set(null);
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $f = $this->createCacheItem;
+        $item = $this->pool->getItem($this->getId($key));
+
+        return $f($key, $item);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->namespaceLen) {
+            foreach ($keys as $i => $key) {
+                $keys[$i] = $this->getId($key);
+            }
+        }
+
+        return $this->generateItems($this->pool->getItems($keys));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        return $this->pool->hasItem($this->getId($key));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return $this->pool->deleteItem($this->getId($key));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        if ($this->namespaceLen) {
+            foreach ($keys as $i => $key) {
+                $keys[$i] = $this->getId($key);
+            }
+        }
+
+        return $this->pool->deleteItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        return $this->doSave($item, __FUNCTION__);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return $this->doSave($item, __FUNCTION__);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return $this->pool->commit();
+    }
+
+    private function doSave(CacheItemInterface $item, $method)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $item = (array) $item;
+        $expiry = $item["\0*\0expiry"];
+        if (null === $expiry && 0 < $item["\0*\0defaultLifetime"]) {
+            $expiry = time() + $item["\0*\0defaultLifetime"];
+        }
+
+        if ($item["\0*\0poolHash"] === $this->poolHash && $item["\0*\0innerItem"]) {
+            $innerItem = $item["\0*\0innerItem"];
+        } elseif ($this->pool instanceof AdapterInterface) {
+            // this is an optimization specific for AdapterInterface implementations
+            // so we can save a round-trip to the backend by just creating a new item
+            $f = $this->createCacheItem;
+            $innerItem = $f($this->namespace.$item["\0*\0key"], null);
+        } else {
+            $innerItem = $this->pool->getItem($this->namespace.$item["\0*\0key"]);
+        }
+
+        $innerItem->set($item["\0*\0value"]);
+        $innerItem->expiresAt(null !== $expiry ? \DateTime::createFromFormat('U', $expiry) : null);
+
+        return $this->pool->$method($innerItem);
+    }
+
+    private function generateItems($items)
+    {
+        $f = $this->createCacheItem;
+
+        foreach ($items as $key => $item) {
+            if ($this->namespaceLen) {
+                $key = substr($key, $this->namespaceLen);
+            }
+
+            yield $key => $f($key, $item);
+        }
+    }
+
+    private function getId($key)
+    {
+        CacheItem::validateKey($key);
+
+        return $this->namespace.$key;
+    }
+}

lib/symfony/cache/Adapter/RedisAdapter.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Traits\RedisTrait;
+
+class RedisAdapter extends AbstractAdapter
+{
+    use RedisTrait;
+
+    /**
+     * @param \Redis|\RedisArray|\RedisCluster|\Predis\Client $redisClient     The redis client
+     * @param string                                          $namespace       The default namespace
+     * @param int                                             $defaultLifetime The default lifetime
+     */
+    public function __construct($redisClient, $namespace = '', $defaultLifetime = 0)
+    {
+        $this->init($redisClient, $namespace, $defaultLifetime);
+    }
+}

lib/symfony/cache/Adapter/SimpleCacheAdapter.php

@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class SimpleCacheAdapter extends AbstractAdapter implements PruneableInterface
+{
+    /**
+     * @internal
+     */
+    const NS_SEPARATOR = '_';
+
+    use ProxyTrait;
+
+    private $miss;
+
+    public function __construct(CacheInterface $pool, $namespace = '', $defaultLifetime = 0)
+    {
+        parent::__construct($namespace, $defaultLifetime);
+
+        $this->pool = $pool;
+        $this->miss = new \stdClass();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch(array $ids)
+    {
+        foreach ($this->pool->getMultiple($ids, $this->miss) as $key => $value) {
+            if ($this->miss !== $value) {
+                yield $key => $value;
+            }
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doHave($id)
+    {
+        return $this->pool->has($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doClear($namespace)
+    {
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete(array $ids)
+    {
+        return $this->pool->deleteMultiple($ids);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave(array $values, $lifetime)
+    {
+        return $this->pool->setMultiple($values, 0 === $lifetime ? null : $lifetime);
+    }
+}

lib/symfony/cache/Adapter/TagAwareAdapter.php

@@ -0,0 +1,373 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\InvalidArgumentException;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TagAwareAdapter implements TagAwareAdapterInterface, PruneableInterface, ResettableInterface
+{
+    const TAGS_PREFIX = "\0tags\0";
+
+    use ProxyTrait;
+
+    private $deferred = [];
+    private $createCacheItem;
+    private $setCacheItemTags;
+    private $getTagsByKey;
+    private $invalidateTags;
+    private $tags;
+    private $knownTagVersions = [];
+    private $knownTagVersionsTtl;
+
+    public function __construct(AdapterInterface $itemsPool, AdapterInterface $tagsPool = null, $knownTagVersionsTtl = 0.15)
+    {
+        $this->pool = $itemsPool;
+        $this->tags = $tagsPool ?: $itemsPool;
+        $this->knownTagVersionsTtl = $knownTagVersionsTtl;
+        $this->createCacheItem = \Closure::bind(
+            function ($key, $value, CacheItem $protoItem) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->defaultLifetime = $protoItem->defaultLifetime;
+                $item->expiry = $protoItem->expiry;
+                $item->poolHash = $protoItem->poolHash;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->setCacheItemTags = \Closure::bind(
+            function (CacheItem $item, $key, array &$itemTags) {
+                if (!$item->isHit) {
+                    return $item;
+                }
+                if (isset($itemTags[$key])) {
+                    foreach ($itemTags[$key] as $tag => $version) {
+                        $item->prevTags[$tag] = $tag;
+                    }
+                    unset($itemTags[$key]);
+                } else {
+                    $item->value = null;
+                    $item->isHit = false;
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->getTagsByKey = \Closure::bind(
+            function ($deferred) {
+                $tagsByKey = [];
+                foreach ($deferred as $key => $item) {
+                    $tagsByKey[$key] = $item->tags;
+                }
+
+                return $tagsByKey;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->invalidateTags = \Closure::bind(
+            function (AdapterInterface $tagsAdapter, array $tags) {
+                foreach ($tags as $v) {
+                    $v->defaultLifetime = 0;
+                    $v->expiry = null;
+                    $tagsAdapter->saveDeferred($v);
+                }
+
+                return $tagsAdapter->commit();
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function invalidateTags(array $tags)
+    {
+        $ok = true;
+        $tagsByKey = [];
+        $invalidatedTags = [];
+        foreach ($tags as $tag) {
+            CacheItem::validateKey($tag);
+            $invalidatedTags[$tag] = 0;
+        }
+
+        if ($this->deferred) {
+            $items = $this->deferred;
+            foreach ($items as $key => $item) {
+                if (!$this->pool->saveDeferred($item)) {
+                    unset($this->deferred[$key]);
+                    $ok = false;
+                }
+            }
+
+            $f = $this->getTagsByKey;
+            $tagsByKey = $f($items);
+            $this->deferred = [];
+        }
+
+        $tagVersions = $this->getTagVersions($tagsByKey, $invalidatedTags);
+        $f = $this->createCacheItem;
+
+        foreach ($tagsByKey as $key => $tags) {
+            $this->pool->saveDeferred($f(static::TAGS_PREFIX.$key, array_intersect_key($tagVersions, $tags), $items[$key]));
+        }
+        $ok = $this->pool->commit() && $ok;
+
+        if ($invalidatedTags) {
+            $f = $this->invalidateTags;
+            $ok = $f($this->tags, $invalidatedTags) && $ok;
+        }
+
+        return $ok;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        if (!$this->pool->hasItem($key)) {
+            return false;
+        }
+        if (!$itemTags = $this->pool->getItem(static::TAGS_PREFIX.$key)->get()) {
+            return true;
+        }
+
+        foreach ($this->getTagVersions([$itemTags]) as $tag => $version) {
+            if ($itemTags[$tag] !== $version && 1 !== $itemTags[$tag] - $version) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        foreach ($this->getItems([$key]) as $item) {
+            return $item;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $tagKeys = [];
+
+        foreach ($keys as $key) {
+            if ('' !== $key && \is_string($key)) {
+                $key = static::TAGS_PREFIX.$key;
+                $tagKeys[$key] = $key;
+            }
+        }
+
+        try {
+            $items = $this->pool->getItems($tagKeys + $keys);
+        } catch (InvalidArgumentException $e) {
+            $this->pool->getItems($keys); // Should throw an exception
+
+            throw $e;
+        }
+
+        return $this->generateItems($items, $tagKeys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->deferred = [];
+
+        return $this->pool->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return $this->deleteItems([$key]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        foreach ($keys as $key) {
+            if ('' !== $key && \is_string($key)) {
+                $keys[] = static::TAGS_PREFIX.$key;
+            }
+        }
+
+        return $this->pool->deleteItems($keys);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        return $this->invalidateTags([]);
+    }
+
+    public function __destruct()
+    {
+        $this->commit();
+    }
+
+    private function generateItems($items, array $tagKeys)
+    {
+        $bufferedItems = $itemTags = [];
+        $f = $this->setCacheItemTags;
+
+        foreach ($items as $key => $item) {
+            if (!$tagKeys) {
+                yield $key => $f($item, static::TAGS_PREFIX.$key, $itemTags);
+                continue;
+            }
+            if (!isset($tagKeys[$key])) {
+                $bufferedItems[$key] = $item;
+                continue;
+            }
+
+            unset($tagKeys[$key]);
+            $itemTags[$key] = $item->get() ?: [];
+
+            if (!$tagKeys) {
+                $tagVersions = $this->getTagVersions($itemTags);
+
+                foreach ($itemTags as $key => $tags) {
+                    foreach ($tags as $tag => $version) {
+                        if ($tagVersions[$tag] !== $version && 1 !== $version - $tagVersions[$tag]) {
+                            unset($itemTags[$key]);
+                            continue 2;
+                        }
+                    }
+                }
+                $tagVersions = $tagKeys = null;
+
+                foreach ($bufferedItems as $key => $item) {
+                    yield $key => $f($item, static::TAGS_PREFIX.$key, $itemTags);
+                }
+                $bufferedItems = null;
+            }
+        }
+    }
+
+    private function getTagVersions(array $tagsByKey, array &$invalidatedTags = [])
+    {
+        $tagVersions = $invalidatedTags;
+
+        foreach ($tagsByKey as $tags) {
+            $tagVersions += $tags;
+        }
+
+        if (!$tagVersions) {
+            return [];
+        }
+
+        if (!$fetchTagVersions = 1 !== \func_num_args()) {
+            foreach ($tagsByKey as $tags) {
+                foreach ($tags as $tag => $version) {
+                    if ($tagVersions[$tag] > $version) {
+                        $tagVersions[$tag] = $version;
+                    }
+                }
+            }
+        }
+
+        $now = microtime(true);
+        $tags = [];
+        foreach ($tagVersions as $tag => $version) {
+            $tags[$tag.static::TAGS_PREFIX] = $tag;
+            if ($fetchTagVersions || !isset($this->knownTagVersions[$tag])) {
+                $fetchTagVersions = true;
+                continue;
+            }
+            $version -= $this->knownTagVersions[$tag][1];
+            if ((0 !== $version && 1 !== $version) || $this->knownTagVersionsTtl > $now - $this->knownTagVersions[$tag][0]) {
+                // reuse previously fetched tag versions up to the ttl, unless we are storing items or a potential miss arises
+                $fetchTagVersions = true;
+            } else {
+                $this->knownTagVersions[$tag][1] += $version;
+            }
+        }
+
+        if (!$fetchTagVersions) {
+            return $tagVersions;
+        }
+
+        foreach ($this->tags->getItems(array_keys($tags)) as $tag => $version) {
+            $tagVersions[$tag = $tags[$tag]] = $version->get() ?: 0;
+            if (isset($invalidatedTags[$tag])) {
+                $invalidatedTags[$tag] = $version->set(++$tagVersions[$tag]);
+            }
+            $this->knownTagVersions[$tag] = [$now, $tagVersions[$tag]];
+        }
+
+        return $tagVersions;
+    }
+}

lib/symfony/cache/Adapter/TagAwareAdapterInterface.php

@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\InvalidArgumentException;
+
+/**
+ * Interface for invalidating cached items using tags.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface TagAwareAdapterInterface extends AdapterInterface
+{
+    /**
+     * Invalidates cached items using tags.
+     *
+     * @param string[] $tags An array of tags to invalidate
+     *
+     * @return bool True on success
+     *
+     * @throws InvalidArgumentException When $tags is not valid
+     */
+    public function invalidateTags(array $tags);
+}

lib/symfony/cache/Adapter/TraceableAdapter.php

@@ -0,0 +1,233 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+
+/**
+ * An adapter that collects data about all cache calls.
+ *
+ * @author Aaron Scherer <aequasi@gmail.com>
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TraceableAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
+{
+    protected $pool;
+    private $calls = [];
+
+    public function __construct(AdapterInterface $pool)
+    {
+        $this->pool = $pool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            $item = $this->pool->getItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+        if ($event->result[$key] = $item->isHit()) {
+            ++$event->hits;
+        } else {
+            ++$event->misses;
+        }
+
+        return $item;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->hasItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->deleteItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$item->getKey()] = $this->pool->save($item);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$item->getKey()] = $this->pool->saveDeferred($item);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            $result = $this->pool->getItems($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+        $f = function () use ($result, $event) {
+            $event->result = [];
+            foreach ($result as $key => $item) {
+                if ($event->result[$key] = $item->isHit()) {
+                    ++$event->hits;
+                } else {
+                    ++$event->misses;
+                }
+                yield $key => $item;
+            }
+        };
+
+        return $f();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->clear();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        $event = $this->start(__FUNCTION__);
+        $event->result['keys'] = $keys;
+        try {
+            return $event->result['result'] = $this->pool->deleteItems($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->commit();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function prune()
+    {
+        if (!$this->pool instanceof PruneableInterface) {
+            return false;
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->prune();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        if (!$this->pool instanceof ResettableInterface) {
+            return;
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            $this->pool->reset();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function getCalls()
+    {
+        return $this->calls;
+    }
+
+    public function clearCalls()
+    {
+        $this->calls = [];
+    }
+
+    protected function start($name)
+    {
+        $this->calls[] = $event = new TraceableAdapterEvent();
+        $event->name = $name;
+        $event->start = microtime(true);
+
+        return $event;
+    }
+}
+
+class TraceableAdapterEvent
+{
+    public $name;
+    public $start;
+    public $end;
+    public $result;
+    public $hits = 0;
+    public $misses = 0;
+}

lib/symfony/cache/Adapter/TraceableTagAwareAdapter.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+/**
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+class TraceableTagAwareAdapter extends TraceableAdapter implements TagAwareAdapterInterface
+{
+    public function __construct(TagAwareAdapterInterface $pool)
+    {
+        parent::__construct($pool);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function invalidateTags(array $tags)
+    {
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->invalidateTags($tags);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+}

lib/symfony/cache/CHANGELOG.md

@@ -0,0 +1,36 @@
+CHANGELOG
+=========
+
+3.4.0
+-----
+
+ * added using options from Memcached DSN
+ * added PruneableInterface so PSR-6 or PSR-16 cache implementations can declare support for manual stale cache pruning
+ * added prune logic to FilesystemTrait, PhpFilesTrait, PdoTrait, TagAwareAdapter and ChainTrait
+ * now FilesystemAdapter, PhpFilesAdapter, FilesystemCache, PhpFilesCache, PdoAdapter, PdoCache, ChainAdapter, and
+   ChainCache implement PruneableInterface and support manual stale cache pruning
+
+3.3.0
+-----
+
+ * [EXPERIMENTAL] added CacheItem::getPreviousTags() to get bound tags coming from the pool storage if any
+ * added PSR-16 "Simple Cache" implementations for all existing PSR-6 adapters
+ * added Psr6Cache and SimpleCacheAdapter for bidirectional interoperability between PSR-6 and PSR-16
+ * added MemcachedAdapter (PSR-6) and MemcachedCache (PSR-16)
+ * added TraceableAdapter (PSR-6) and TraceableCache (PSR-16)
+
+3.2.0
+-----
+
+ * added TagAwareAdapter for tags-based invalidation
+ * added PdoAdapter with PDO and Doctrine DBAL support
+ * added PhpArrayAdapter and PhpFilesAdapter for OPcache-backed shared memory storage (PHP 7+ only)
+ * added NullAdapter
+
+3.1.0
+-----
+
+ * added the component with strict PSR-6 implementations
+ * added ApcuAdapter, ArrayAdapter, FilesystemAdapter and RedisAdapter
+ * added AbstractAdapter, ChainAdapter and ProxyAdapter
+ * added DoctrineAdapter and DoctrineProvider for bidirectional interoperability with Doctrine Cache

lib/symfony/cache/CacheItem.php

@@ -0,0 +1,187 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+final class CacheItem implements CacheItemInterface
+{
+    protected $key;
+    protected $value;
+    protected $isHit = false;
+    protected $expiry;
+    protected $defaultLifetime;
+    protected $tags = [];
+    protected $prevTags = [];
+    protected $innerItem;
+    protected $poolHash;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get()
+    {
+        return $this->value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHit()
+    {
+        return $this->isHit;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($value)
+    {
+        $this->value = $value;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function expiresAt($expiration)
+    {
+        if (null === $expiration) {
+            $this->expiry = $this->defaultLifetime > 0 ? time() + $this->defaultLifetime : null;
+        } elseif ($expiration instanceof \DateTimeInterface) {
+            $this->expiry = (int) $expiration->format('U');
+        } else {
+            throw new InvalidArgumentException(sprintf('Expiration date must implement DateTimeInterface or be null, "%s" given', \is_object($expiration) ? \get_class($expiration) : \gettype($expiration)));
+        }
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function expiresAfter($time)
+    {
+        if (null === $time) {
+            $this->expiry = $this->defaultLifetime > 0 ? time() + $this->defaultLifetime : null;
+        } elseif ($time instanceof \DateInterval) {
+            $this->expiry = (int) \DateTime::createFromFormat('U', time())->add($time)->format('U');
+        } elseif (\is_int($time)) {
+            $this->expiry = $time + time();
+        } else {
+            throw new InvalidArgumentException(sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given', \is_object($time) ? \get_class($time) : \gettype($time)));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds a tag to a cache item.
+     *
+     * @param string|string[] $tags A tag or array of tags
+     *
+     * @return static
+     *
+     * @throws InvalidArgumentException When $tag is not valid
+     */
+    public function tag($tags)
+    {
+        if (!\is_array($tags)) {
+            $tags = [$tags];
+        }
+        foreach ($tags as $tag) {
+            if (!\is_string($tag)) {
+                throw new InvalidArgumentException(sprintf('Cache tag must be string, "%s" given', \is_object($tag) ? \get_class($tag) : \gettype($tag)));
+            }
+            if (isset($this->tags[$tag])) {
+                continue;
+            }
+            if ('' === $tag) {
+                throw new InvalidArgumentException('Cache tag length must be greater than zero');
+            }
+            if (false !== strpbrk($tag, '{}()/\@:')) {
+                throw new InvalidArgumentException(sprintf('Cache tag "%s" contains reserved characters {}()/\@:', $tag));
+            }
+            $this->tags[$tag] = $tag;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns the list of tags bound to the value coming from the pool storage if any.
+     *
+     * @return array
+     */
+    public function getPreviousTags()
+    {
+        return $this->prevTags;
+    }
+
+    /**
+     * Validates a cache key according to PSR-6.
+     *
+     * @param string $key The key to validate
+     *
+     * @return string
+     *
+     * @throws InvalidArgumentException When $key is not valid
+     */
+    public static function validateKey($key)
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given', \is_object($key) ? \get_class($key) : \gettype($key)));
+        }
+        if ('' === $key) {
+            throw new InvalidArgumentException('Cache key length must be greater than zero');
+        }
+        if (false !== strpbrk($key, '{}()/\@:')) {
+            throw new InvalidArgumentException(sprintf('Cache key "%s" contains reserved characters {}()/\@:', $key));
+        }
+
+        return $key;
+    }
+
+    /**
+     * Internal logging helper.
+     *
+     * @internal
+     */
+    public static function log(LoggerInterface $logger = null, $message, $context = [])
+    {
+        if ($logger) {
+            $logger->warning($message, $context);
+        } else {
+            $replace = [];
+            foreach ($context as $k => $v) {
+                if (is_scalar($v)) {
+                    $replace['{'.$k.'}'] = $v;
+                }
+            }
+            @trigger_error(strtr($message, $replace), E_USER_WARNING);
+        }
+    }
+}