diff --git a/.gitattributes b/.gitattributes
index 60629c0..c01ff77 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,5 @@
+bin/configuration-test-generator export-ignore
+bin/icon-test export-ignore
 doc/ export-ignore
 tst/ export-ignore
 img/browserstack.svg export-ignore
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4f1db5..c8af3bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,13 +1,13 @@
 # PrivateBin version history
 
-  * **1.4.1 (not yet released)**
+  * **1.5 (not yet released)**
     * ADDED: script for data storage backend migrations (#1012)
     * ADDED: script for administrative tasks: deleting pastes (#274), removing empty directories (#277), purging expired pastes (#276) & statistics (#319)
     * ADDED: Translations for Turkish, Slovak, Greek and Thai
     * ADDED: S3 Storage backend (#994)
     * ADDED: Jdenticons as an option for comment icons (#793)
     * CHANGED: Avoid `SUPER` privilege for setting the `sql_mode` for MariaDB/MySQL (#919)
-    * CHANGED: Upgrading libraries to: zlib 1.2.13
+    * CHANGED: Upgrading libraries to: DOMpurify 2.4.6, jQuery 3.6.1, Showdown 2.1.0 & zlib 1.2.13
     * FIXED: Revert to CREATE INDEX without IF NOT EXISTS clauses, to support MySQL (#943)
     * FIXED: Apply table prefix to indexes as well, to support multiple instances sharing a single database (#943)
     * FIXED: YOURLS integration via new proxy, storing signature in configuration (#725)
diff --git a/tst/ConfigurationTestGenerator.php b/bin/configuration-test-generator
similarity index 98%
rename from tst/ConfigurationTestGenerator.php
rename to bin/configuration-test-generator
index a0106a3..432a229 100755
--- a/tst/ConfigurationTestGenerator.php
+++ b/bin/configuration-test-generator
@@ -9,7 +9,9 @@
  * DANGER: Too many options/settings and too high max iteration setting may trigger
  *         a fork bomb. Please save your work before executing this script.
  */
-include 'Bootstrap.php';
+
+define('PATH', dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR);
+include PATH . 'tst' . DIRECTORY_SEPARATOR . 'Bootstrap.php';
 
 $vd  = array('view', 'delete');
 $vcd = array('view', 'create', 'delete');
@@ -392,7 +394,7 @@ class ConfigurationTestGenerator
             }
         }
         $code .= '}' . PHP_EOL;
-        file_put_contents('ConfigurationCombinationsTest.php', $code);
+        file_put_contents(dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'tst' . DIRECTORY_SEPARATOR . 'ConfigurationCombinationsTest.php', $code);
     }
 
     /**
@@ -428,6 +430,8 @@ class ConfigurationCombinationsTest extends PHPUnit_Framework_TestCase
         Helper::confBackup();
         $this->_path  = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'privatebin_data';
         $this->_model = new Filesystem(array('dir' => $this->_path));
+        ServerSalt::setStore($this->_model);
+        TrafficLimiter::setStore($this->_model);
         $this->reset();
     }
 
diff --git a/tst/IconTest b/bin/icon-test
similarity index 100%
rename from tst/IconTest
rename to bin/icon-test
diff --git a/bin/migrate.php b/bin/migrate
old mode 100644
new mode 100755
similarity index 93%
rename from bin/migrate.php
rename to bin/migrate
index 193430e..515a5e8
--- a/bin/migrate.php
+++ b/bin/migrate
@@ -1,7 +1,8 @@
+#!/usr/bin/env php
 <?php
 
 // change this, if your php files and data is outside of your webservers document root
-define('PATH', '..' . DIRECTORY_SEPARATOR);
+define('PATH', dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR);
 
 define('PUBLIC_PATH', __DIR__ . DIRECTORY_SEPARATOR);
 require PATH . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
@@ -9,6 +10,10 @@ require PATH . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
 use PrivateBin\Configuration;
 use PrivateBin\Model;
 
+// third argument in getopt requires PHP >= 7.1
+if (version_compare(PHP_VERSION, '7.1.0') < 0) {
+    dieerr('migrate requires php 7.1 or above to work. Sorry.');
+}
 
 $longopts = array(
     "delete-after",
@@ -171,9 +176,9 @@ function helpexit ()
     print("migrate.php - Copy data between PrivateBin backends
 
 Usage:
-  php migrate.php [--delete-after] [--delete-during] [-f] [-n] [-v] srcconfdir
-                  [<dstconfdir>]
-  php migrate.php [-h]
+  migrate [--delete-after] [--delete-during] [-f] [-n] [-v] srcconfdir
+          [<dstconfdir>]
+  migrate [-h]
 
 Options:
   --delete-after   delete data from source after all pastes and comments have
diff --git a/composer.lock b/composer.lock
index 8b17d33..3f4e65f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -48,11 +48,6 @@
                 "identicon",
                 "jdenticon"
             ],
-            "support": {
-                "docs": "https://jdenticon.com/php-api.html",
-                "issues": "https://github.com/dmester/jdenticon-php/issues",
-                "source": "https://github.com/dmester/jdenticon-php"
-            },
             "time": "2022-10-30T17:15:02+00:00"
         },
         {
@@ -110,20 +105,6 @@
                 "range",
                 "subnet"
             ],
-            "support": {
-                "issues": "https://github.com/mlocati/ip-lib/issues",
-                "source": "https://github.com/mlocati/ip-lib/tree/1.18.0"
-            },
-            "funding": [
-                {
-                    "url": "https://github.com/sponsors/mlocati",
-                    "type": "github"
-                },
-                {
-                    "url": "https://paypal.me/mlocati",
-                    "type": "other"
-                }
-            ],
             "time": "2022-01-13T18:05:33+00:00"
         },
         {
@@ -173,11 +154,6 @@
                 "pseudorandom",
                 "random"
             ],
-            "support": {
-                "email": "info@paragonie.com",
-                "issues": "https://github.com/paragonie/random_compat/issues",
-                "source": "https://github.com/paragonie/random_compat"
-            },
             "time": "2022-02-16T17:07:03+00:00"
         },
         {
@@ -230,10 +206,6 @@
                 "identicon",
                 "image"
             ],
-            "support": {
-                "issues": "https://github.com/yzalis/Identicon/issues",
-                "source": "https://github.com/yzalis/Identicon/tree/master"
-            },
             "abandoned": true,
             "time": "2019-10-14T09:30:57+00:00"
         }
@@ -241,34 +213,32 @@
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
-            "version": "1.0.5",
+            "version": "1.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
+                "reference": "10dcfce151b967d20fde1b34ae6640712c3891bc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/8e884e78f9f0eb1329e445619e04456e64d8051d",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/10dcfce151b967d20fde1b34ae6640712c3891bc",
+                "reference": "10dcfce151b967d20fde1b34ae6640712c3891bc",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3,<8.0-DEV"
+                "php": "^7.1 || ^8.0"
             },
             "require-dev": {
-                "athletic/athletic": "~0.1.8",
+                "doctrine/coding-standard": "^9",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "~2.0"
+                "phpbench/phpbench": "^0.16 || ^1",
+                "phpstan/phpstan": "^1.4",
+                "phpstan/phpstan-phpunit": "^1",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.5",
+                "vimeo/psalm": "^4.22"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0.x-dev"
-                }
-            },
             "autoload": {
                 "psr-4": {
                     "Doctrine\\Instantiator\\": "src/Doctrine/Instantiator/"
@@ -282,42 +252,42 @@
                 {
                     "name": "Marco Pivetta",
                     "email": "ocramius@gmail.com",
-                    "homepage": "http://ocramius.github.com/"
+                    "homepage": "https://ocramius.github.io/"
                 }
             ],
             "description": "A small, lightweight utility to instantiate objects in PHP without invoking their constructors",
-            "homepage": "https://github.com/doctrine/instantiator",
+            "homepage": "https://www.doctrine-project.org/projects/instantiator.html",
             "keywords": [
                 "constructor",
                 "instantiate"
             ],
-            "support": {
-                "issues": "https://github.com/doctrine/instantiator/issues",
-                "source": "https://github.com/doctrine/instantiator/tree/master"
-            },
-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2022-03-03T08:28:38+00:00"
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.7.0",
+            "version": "1.11.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e"
+                "reference": "14daed4296fae74d9e3201d2c4925d1acb7aa614"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
-                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/14daed4296fae74d9e3201d2c4925d1acb7aa614",
+                "reference": "14daed4296fae74d9e3201d2c4925d1acb7aa614",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0"
+                "php": "^7.1 || ^8.0"
+            },
+            "conflict": {
+                "doctrine/collections": "<1.6.8",
+                "doctrine/common": "<2.13.3 || >=3,<3.2.2"
             },
             "require-dev": {
-                "doctrine/collections": "^1.0",
-                "doctrine/common": "^2.6",
-                "phpunit/phpunit": "^4.1"
+                "doctrine/collections": "^1.6.8",
+                "doctrine/common": "^2.13.3 || ^3.2.2",
+                "phpunit/phpunit": "^7.5.20 || ^8.5.23 || ^9.5.13"
             },
             "type": "library",
             "autoload": {
@@ -340,43 +310,34 @@
                 "object",
                 "object graph"
             ],
-            "support": {
-                "issues": "https://github.com/myclabs/DeepCopy/issues",
-                "source": "https://github.com/myclabs/DeepCopy/tree/1.x"
-            },
-            "time": "2017-10-19T19:58:43+00:00"
+            "time": "2022-03-03T13:19:32+00:00"
         },
         {
             "name": "phpdocumentor/reflection-common",
-            "version": "1.0.1",
+            "version": "2.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6"
+                "reference": "1d01c49d4ed62f25aa84a747ad35d5a16924662b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/1d01c49d4ed62f25aa84a747ad35d5a16924662b",
+                "reference": "1d01c49d4ed62f25aa84a747ad35d5a16924662b",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.6"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-2.x": "2.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -398,94 +359,92 @@
                 "reflection",
                 "static analysis"
             ],
-            "support": {
-                "issues": "https://github.com/phpDocumentor/ReflectionCommon/issues",
-                "source": "https://github.com/phpDocumentor/ReflectionCommon/tree/master"
-            },
-            "time": "2017-09-11T18:02:19+00:00"
+            "time": "2020-06-27T09:03:43+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "3.3.2",
+            "version": "5.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "bf329f6c1aadea3299f08ee804682b7c45b326a2"
+                "reference": "622548b623e81ca6d78b721c5e029f4ce664f170"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/bf329f6c1aadea3299f08ee804682b7c45b326a2",
-                "reference": "bf329f6c1aadea3299f08ee804682b7c45b326a2",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/622548b623e81ca6d78b721c5e029f4ce664f170",
+                "reference": "622548b623e81ca6d78b721c5e029f4ce664f170",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0",
-                "phpdocumentor/reflection-common": "^1.0.0",
-                "phpdocumentor/type-resolver": "^0.4.0",
-                "webmozart/assert": "^1.0"
+                "ext-filter": "*",
+                "php": "^7.2 || ^8.0",
+                "phpdocumentor/reflection-common": "^2.2",
+                "phpdocumentor/type-resolver": "^1.3",
+                "webmozart/assert": "^1.9.1"
             },
             "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^4.4"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src/"
-                    ]
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Mike van Riel",
-                    "email": "me@mikevanriel.com"
-                }
-            ],
-            "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "support": {
-                "issues": "https://github.com/phpDocumentor/ReflectionDocBlock/issues",
-                "source": "https://github.com/phpDocumentor/ReflectionDocBlock/tree/release/3.x"
-            },
-            "time": "2017-11-10T14:09:06+00:00"
-        },
-        {
-            "name": "phpdocumentor/type-resolver",
-            "version": "0.4.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/TypeResolver.git",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/9c977708995954784726e25d0cd1dddf4e65b0f7",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.5 || ^7.0",
-                "phpdocumentor/reflection-common": "^1.0"
-            },
-            "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^5.2||^4.8.24"
+                "mockery/mockery": "~1.3.2",
+                "psalm/phar": "^4.8"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "5.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src/"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mike van Riel",
+                    "email": "me@mikevanriel.com"
+                },
+                {
+                    "name": "Jaap van Otterdijk",
+                    "email": "account@ijaap.nl"
+                }
+            ],
+            "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
+            "time": "2021-10-19T17:43:47+00:00"
+        },
+        {
+            "name": "phpdocumentor/type-resolver",
+            "version": "1.6.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpDocumentor/TypeResolver.git",
+                "reference": "77a32518733312af16a44300404e945338981de3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/77a32518733312af16a44300404e945338981de3",
+                "reference": "77a32518733312af16a44300404e945338981de3",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2 || ^8.0",
+                "phpdocumentor/reflection-common": "^2.0"
+            },
+            "require-dev": {
+                "ext-tokenizer": "*",
+                "psalm/phar": "^4.8"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-1.x": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "phpDocumentor\\Reflection\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -498,11 +457,8 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "support": {
-                "issues": "https://github.com/phpDocumentor/TypeResolver/issues",
-                "source": "https://github.com/phpDocumentor/TypeResolver/tree/master"
-            },
-            "time": "2017-07-14T14:27:02+00:00"
+            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
+            "time": "2022-03-15T21:29:03+00:00"
         },
         {
             "name": "phpspec/prophecy",
@@ -565,43 +521,39 @@
                 "spy",
                 "stub"
             ],
-            "support": {
-                "issues": "https://github.com/phpspec/prophecy/issues",
-                "source": "https://github.com/phpspec/prophecy/tree/v1.10.3"
-            },
             "time": "2020-03-05T15:02:03+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "4.0.8",
+            "version": "4.0.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "ef7b2f56815df854e66ceaee8ebe9393ae36a40d"
+                "reference": "ca060f645beeddebedb1885c97bf163e93264c35"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/ef7b2f56815df854e66ceaee8ebe9393ae36a40d",
-                "reference": "ef7b2f56815df854e66ceaee8ebe9393ae36a40d",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/ca060f645beeddebedb1885c97bf163e93264c35",
+                "reference": "ca060f645beeddebedb1885c97bf163e93264c35",
                 "shasum": ""
             },
             "require": {
-                "ext-dom": "*",
-                "ext-xmlwriter": "*",
                 "php": "^5.6 || ^7.0",
-                "phpunit/php-file-iterator": "^1.3",
-                "phpunit/php-text-template": "^1.2",
+                "phpunit/php-file-iterator": "~1.3",
+                "phpunit/php-text-template": "~1.2",
                 "phpunit/php-token-stream": "^1.4.2 || ^2.0",
-                "sebastian/code-unit-reverse-lookup": "^1.0",
+                "sebastian/code-unit-reverse-lookup": "~1.0",
                 "sebastian/environment": "^1.3.2 || ^2.0",
-                "sebastian/version": "^1.0 || ^2.0"
+                "sebastian/version": "~1.0|~2.0"
             },
             "require-dev": {
-                "ext-xdebug": "^2.1.4",
-                "phpunit/phpunit": "^5.7"
+                "ext-xdebug": ">=2.1.4",
+                "phpunit/phpunit": "^5.4"
             },
             "suggest": {
-                "ext-xdebug": "^2.5.1"
+                "ext-dom": "*",
+                "ext-xdebug": ">=2.4.0",
+                "ext-xmlwriter": "*"
             },
             "type": "library",
             "extra": {
@@ -632,12 +584,7 @@
                 "testing",
                 "xunit"
             ],
-            "support": {
-                "irc": "irc://irc.freenode.net/phpunit",
-                "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/4.0"
-            },
-            "time": "2017-04-02T07:44:40+00:00"
+            "time": "2017-02-23T07:38:02+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -684,11 +631,6 @@
                 "filesystem",
                 "iterator"
             ],
-            "support": {
-                "irc": "irc://irc.freenode.net/phpunit",
-                "issues": "https://github.com/sebastianbergmann/php-file-iterator/issues",
-                "source": "https://github.com/sebastianbergmann/php-file-iterator/tree/1.4.5"
-            },
             "time": "2017-11-27T13:52:08+00:00"
         },
         {
@@ -730,10 +672,6 @@
             "keywords": [
                 "template"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/php-text-template/issues",
-                "source": "https://github.com/sebastianbergmann/php-text-template/tree/1.2.1"
-            },
             "time": "2015-06-21T13:50:34+00:00"
         },
         {
@@ -783,37 +721,33 @@
             "keywords": [
                 "timer"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/php-timer/issues",
-                "source": "https://github.com/sebastianbergmann/php-timer/tree/master"
-            },
             "time": "2017-02-26T11:10:40+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "1.4.12",
+            "version": "2.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "1ce90ba27c42e4e44e6d8458241466380b51fa16"
+                "reference": "791198a2c6254db10131eecfe8c06670700904db"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/1ce90ba27c42e4e44e6d8458241466380b51fa16",
-                "reference": "1ce90ba27c42e4e44e6d8458241466380b51fa16",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/791198a2c6254db10131eecfe8c06670700904db",
+                "reference": "791198a2c6254db10131eecfe8c06670700904db",
                 "shasum": ""
             },
             "require": {
                 "ext-tokenizer": "*",
-                "php": ">=5.3.3"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.2"
+                "phpunit/phpunit": "^6.2.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.4-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -836,12 +770,8 @@
             "keywords": [
                 "tokenizer"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/php-token-stream/issues",
-                "source": "https://github.com/sebastianbergmann/php-token-stream/tree/1.4"
-            },
             "abandoned": true,
-            "time": "2017-12-04T08:55:13+00:00"
+            "time": "2017-11-27T05:48:46+00:00"
         },
         {
             "name": "phpunit/phpunit",
@@ -923,10 +853,6 @@
                 "testing",
                 "xunit"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/5.7.27"
-            },
             "time": "2018-02-01T05:50:59+00:00"
         },
         {
@@ -986,11 +912,6 @@
                 "mock",
                 "xunit"
             ],
-            "support": {
-                "irc": "irc://irc.freenode.net/phpunit",
-                "issues": "https://github.com/sebastianbergmann/phpunit-mock-objects/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit-mock-objects/tree/3.4"
-            },
             "abandoned": true,
             "time": "2017-06-30T09:13:00+00:00"
         },
@@ -1037,16 +958,6 @@
             ],
             "description": "Looks up which function or method a line of code belongs to",
             "homepage": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/",
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/issues",
-                "source": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/tree/1.0.2"
-            },
-            "funding": [
-                {
-                    "url": "https://github.com/sebastianbergmann",
-                    "type": "github"
-                }
-            ],
             "time": "2020-11-30T08:15:22+00:00"
         },
         {
@@ -1111,10 +1022,6 @@
                 "compare",
                 "equality"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/comparator/issues",
-                "source": "https://github.com/sebastianbergmann/comparator/tree/1.2"
-            },
             "time": "2017-01-29T09:50:25+00:00"
         },
         {
@@ -1167,10 +1074,6 @@
             "keywords": [
                 "diff"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/diff/issues",
-                "source": "https://github.com/sebastianbergmann/diff/tree/1.4"
-            },
             "time": "2017-05-22T07:24:03+00:00"
         },
         {
@@ -1221,10 +1124,6 @@
                 "environment",
                 "hhvm"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/environment/issues",
-                "source": "https://github.com/sebastianbergmann/environment/tree/master"
-            },
             "time": "2016-11-26T07:53:53+00:00"
         },
         {
@@ -1292,10 +1191,6 @@
                 "export",
                 "exporter"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/exporter/issues",
-                "source": "https://github.com/sebastianbergmann/exporter/tree/master"
-            },
             "time": "2016-11-19T08:54:04+00:00"
         },
         {
@@ -1347,10 +1242,6 @@
             "keywords": [
                 "global state"
             ],
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/global-state/issues",
-                "source": "https://github.com/sebastianbergmann/global-state/tree/1.1.1"
-            },
             "time": "2015-10-12T03:26:01+00:00"
         },
         {
@@ -1397,10 +1288,6 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/object-enumerator/issues",
-                "source": "https://github.com/sebastianbergmann/object-enumerator/tree/master"
-            },
             "time": "2017-02-18T15:18:39+00:00"
         },
         {
@@ -1454,10 +1341,6 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/recursion-context/issues",
-                "source": "https://github.com/sebastianbergmann/recursion-context/tree/master"
-            },
             "time": "2016-11-19T07:33:16+00:00"
         },
         {
@@ -1500,10 +1383,6 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/resource-operations/issues",
-                "source": "https://github.com/sebastianbergmann/resource-operations/tree/master"
-            },
             "time": "2015-07-28T20:34:47+00:00"
         },
         {
@@ -1547,28 +1426,27 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "support": {
-                "issues": "https://github.com/sebastianbergmann/version/issues",
-                "source": "https://github.com/sebastianbergmann/version/tree/master"
-            },
             "time": "2016-10-03T07:35:21+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.19.0",
+            "version": "v1.26.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b"
+                "reference": "6fd1b9a79f6e3cf65f9e679b23af304cd9e010d4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/aed596913b70fae57be53d86faa2e9ef85a2297b",
-                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/6fd1b9a79f6e3cf65f9e679b23af304cd9e010d4",
+                "reference": "6fd1b9a79f6e3cf65f9e679b23af304cd9e010d4",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": ">=7.1"
+            },
+            "provide": {
+                "ext-ctype": "*"
             },
             "suggest": {
                 "ext-ctype": "For best performance"
@@ -1576,7 +1454,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "1.19-dev"
+                    "dev-main": "1.26-dev"
                 },
                 "thanks": {
                     "name": "symfony/polyfill",
@@ -1613,48 +1491,31 @@
                 "polyfill",
                 "portable"
             ],
-            "support": {
-                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.19.0"
-            },
-            "funding": [
-                {
-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
-                {
-                    "url": "https://github.com/fabpot",
-                    "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
-                    "type": "tidelift"
-                }
-            ],
-            "time": "2020-10-23T09:01:57+00:00"
+            "time": "2022-05-24T11:49:31+00:00"
         },
         {
             "name": "symfony/yaml",
-            "version": "v3.4.47",
+            "version": "v4.4.45",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "88289caa3c166321883f67fe5130188ebbb47094"
+                "reference": "aeccc4dc52a9e634f1d1eebeb21eacfdcff1053d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/88289caa3c166321883f67fe5130188ebbb47094",
-                "reference": "88289caa3c166321883f67fe5130188ebbb47094",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/aeccc4dc52a9e634f1d1eebeb21eacfdcff1053d",
+                "reference": "aeccc4dc52a9e634f1d1eebeb21eacfdcff1053d",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
+                "php": ">=7.1.3",
                 "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
                 "symfony/console": "<3.4"
             },
             "require-dev": {
-                "symfony/console": "~3.4|~4.0"
+                "symfony/console": "^3.4|^4.0|^5.0"
             },
             "suggest": {
                 "symfony/console": "For validating YAML files using the lint command"
@@ -1682,53 +1543,41 @@
                     "homepage": "https://symfony.com/contributors"
                 }
             ],
-            "description": "Symfony Yaml Component",
+            "description": "Loads and dumps YAML files",
             "homepage": "https://symfony.com",
-            "support": {
-                "source": "https://github.com/symfony/yaml/tree/v3.4.47"
-            },
-            "funding": [
-                {
-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
-                {
-                    "url": "https://github.com/fabpot",
-                    "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
-                    "type": "tidelift"
-                }
-            ],
-            "time": "2020-10-24T10:57:07+00:00"
+            "time": "2022-08-02T15:47:23+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.9.1",
+            "version": "1.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozarts/assert.git",
-                "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389"
+                "reference": "6964c76c7804814a842473e0c8fd15bab0f18e25"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozarts/assert/zipball/bafc69caeb4d49c39fd0779086c03a3738cbb389",
-                "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389",
+                "url": "https://api.github.com/repos/webmozarts/assert/zipball/6964c76c7804814a842473e0c8fd15bab0f18e25",
+                "reference": "6964c76c7804814a842473e0c8fd15bab0f18e25",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0 || ^8.0",
+                "php": "^7.2 || ^8.0",
                 "symfony/polyfill-ctype": "^1.8"
             },
             "conflict": {
                 "phpstan/phpstan": "<0.12.20",
-                "vimeo/psalm": "<3.9.1"
+                "vimeo/psalm": "<4.6.1 || 4.6.2"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
+                "phpunit/phpunit": "^8.5.13"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.10-dev"
+                }
+            },
             "autoload": {
                 "psr-4": {
                     "Webmozart\\Assert\\": "src/"
@@ -1750,11 +1599,7 @@
                 "check",
                 "validate"
             ],
-            "support": {
-                "issues": "https://github.com/webmozarts/assert/issues",
-                "source": "https://github.com/webmozarts/assert/tree/1.9.1"
-            },
-            "time": "2020-07-08T17:02:28+00:00"
+            "time": "2021-03-09T10:59:23+00:00"
         }
     ],
     "aliases": [],
@@ -1765,6 +1610,5 @@
     "platform": {
         "php": "^5.6.0 || ^7.0 || ^8.0"
     },
-    "platform-dev": [],
-    "plugin-api-version": "2.3.0"
+    "platform-dev": []
 }
diff --git a/js/common.js b/js/common.js
index 12e4c88..0d1b673 100644
--- a/js/common.js
+++ b/js/common.js
@@ -10,14 +10,14 @@ global.fs = require('fs');
 global.WebCrypto = require('@peculiar/webcrypto').Crypto;
 
 // application libraries to test
-global.$ = global.jQuery = require('./jquery-3.6.0');
+global.$ = global.jQuery = require('./jquery-3.6.1');
 global.RawDeflate = require('./rawinflate-0.3').RawDeflate;
 global.zlib = require('./zlib-1.2.13').zlib;
 require('./prettify');
 global.prettyPrint = window.PR.prettyPrint;
 global.prettyPrintOne = window.PR.prettyPrintOne;
-global.showdown = require('./showdown-2.0.3');
-global.DOMPurify = require('./purify-2.3.6');
+global.showdown = require('./showdown-2.1.0');
+global.DOMPurify = require('./purify-2.4.6');
 global.baseX = require('./base-x-4.0.0').baseX;
 global.Legacy = require('./legacy').Legacy;
 require('./bootstrap-3.4.1');
diff --git a/js/jquery-3.6.0.js b/js/jquery-3.6.0.js
deleted file mode 100644
index c4c6022..0000000
--- a/js/jquery-3.6.0.js
+++ /dev/null
@@ -1,2 +0,0 @@
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diff --git a/js/showdown-2.0.3.js b/js/showdown-2.1.0.js
similarity index 99%
rename from js/showdown-2.0.3.js
rename to js/showdown-2.1.0.js
index 6c25ae4..0a47055 100644
--- a/js/showdown-2.0.3.js
+++ b/js/showdown-2.1.0.js
@@ -1,2 +1,2 @@
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+/*! showdown v 2.1.0 - 21-04-2022 */
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":"- ")+x.subParser("makeMarkdown.listItem")(n[i],r),++o);return(a+="\n\x3c!-- --\x3e\n").trim()}),x.subParser("makeMarkdown.listItem",function(e,r){"use strict";for(var t="",a=e.childNodes,n=a.length,s=0;s<n;++s)t+=x.subParser("makeMarkdown.node")(a[s],r);return/\n$/.test(t)?t=t.split("\n").join("\n    ").replace(/^ {4}$/gm,"").replace(/\n\n+/g,"\n\n"):t+="\n",t}),x.subParser("makeMarkdown.node",function(e,r,t){"use strict";t=t||!1;var a="";if(3===e.nodeType)return x.subParser("makeMarkdown.txt")(e,r);if(8===e.nodeType)return"\x3c!--"+e.data+"--\x3e\n\n";if(1!==e.nodeType)return"";switch(e.tagName.toLowerCase()){case"h1":t||(a=x.subParser("makeMarkdown.header")(e,r,1)+"\n\n");break;case"h2":t||(a=x.subParser("makeMarkdown.header")(e,r,2)+"\n\n");break;case"h3":t||(a=x.subParser("makeMarkdown.header")(e,r,3)+"\n\n");break;case"h4":t||(a=x.subParser("makeMarkdown.header")(e,r,4)+"\n\n");break;case"h5":t||(a=x.subParser("makeMarkdown.header")(e,r,5)+"\n\n");break;case"h6":t||(a=x.subParser("makeMarkdown.header")(e,r,6)+"\n\n");break;case"p":t||(a=x.subParser("makeMarkdown.paragraph")(e,r)+"\n\n");break;case"blockquote":t||(a=x.subParser("makeMarkdown.blockquote")(e,r)+"\n\n");break;case"hr":t||(a=x.subParser("makeMarkdown.hr")(e,r)+"\n\n");break;case"ol":t||(a=x.subParser("makeMarkdown.list")(e,r,"ol")+"\n\n");break;case"ul":t||(a=x.subParser("makeMarkdown.list")(e,r,"ul")+"\n\n");break;case"precode":t||(a=x.subParser("makeMarkdown.codeBlock")(e,r)+"\n\n");break;case"pre":t||(a=x.subParser("makeMarkdown.pre")(e,r)+"\n\n");break;case"table":t||(a=x.subParser("makeMarkdown.table")(e,r)+"\n\n");break;case"code":a=x.subParser("makeMarkdown.codeSpan")(e,r);break;case"em":case"i":a=x.subParser("makeMarkdown.emphasis")(e,r);break;case"strong":case"b":a=x.subParser("makeMarkdown.strong")(e,r);break;case"del":a=x.subParser("makeMarkdown.strikethrough")(e,r);break;case"a":a=x.subParser("makeMarkdown.links")(e,r);break;case"img":a=x.subParser("makeMarkdown.image")(e,r);break;default:a=e.outerHTML+"\n\n"}return a}),x.subParser("makeMarkdown.paragraph",function(e,r){"use strict";var t="";if(e.hasChildNodes())for(var a=e.childNodes,n=a.length,s=0;s<n;++s)t+=x.subParser("makeMarkdown.node")(a[s],r);return t=t.trim()}),x.subParser("makeMarkdown.pre",function(e,r){"use strict";e=e.getAttribute("prenum");return"<pre>"+r.preList[e]+"</pre>"}),x.subParser("makeMarkdown.strikethrough",function(e,r){"use strict";var t="";if(e.hasChildNodes()){t+="~~";for(var a=e.childNodes,n=a.length,s=0;s<n;++s)t+=x.subParser("makeMarkdown.node")(a[s],r);t+="~~"}return t}),x.subParser("makeMarkdown.strong",function(e,r){"use strict";var t="";if(e.hasChildNodes()){t+="**";for(var a=e.childNodes,n=a.length,s=0;s<n;++s)t+=x.subParser("makeMarkdown.node")(a[s],r);t+="**"}return t}),x.subParser("makeMarkdown.table",function(e,r){"use strict";for(var t="",a=[[],[]],n=e.querySelectorAll("thead>tr>th"),s=e.querySelectorAll("tbody>tr"),o=0;o<n.length;++o){var i=x.subParser("makeMarkdown.tableCell")(n[o],r),l="---";if(n[o].hasAttribute("style"))switch(n[o].getAttribute("style").toLowerCase().replace(/\s/g,"")){case"text-align:left;":l=":---";break;case"text-align:right;":l="---:";break;case"text-align:center;":l=":---:"}a[0][o]=i.trim(),a[1][o]=l}for(o=0;o<s.length;++o)for(var c=a.push([])-1,u=s[o].getElementsByTagName("td"),d=0;d<n.length;++d){var p=" ";void 0!==u[d]&&(p=x.subParser("makeMarkdown.tableCell")(u[d],r)),a[c].push(p)}var h=3;for(o=0;o<a.length;++o)for(d=0;d<a[o].length;++d){var _=a[o][d].length;h<_&&(h=_)}for(o=0;o<a.length;++o){for(d=0;d<a[o].length;++d)1===o?":"===a[o][d].slice(-1)?a[o][d]=x.helper.padEnd(a[o][d].slice(-1),h-1,"-")+":":a[o][d]=x.helper.padEnd(a[o][d],h,"-"):a[o][d]=x.helper.padEnd(a[o][d],h);t+="| "+a[o].join(" | ")+" |\n"}return t.trim()}),x.subParser("makeMarkdown.tableCell",function(e,r){"use strict";var t="";if(!e.hasChildNodes())return"";for(var a=e.childNodes,n=a.length,s=0;s<n;++s)t+=x.subParser("makeMarkdown.node")(a[s],r,!0);return t.trim()}),x.subParser("makeMarkdown.txt",function(e){"use strict";e=e.nodeValue;return e=(e=e.replace(/ +/g," ")).replace(/¨NBSP;/g," "),e=(e=(e=(e=(e=(e=(e=(e=(e=x.helper.unescapeHTMLEntities(e)).replace(/([*_~|`])/g,"\\$1")).replace(/^(\s*)>/g,"\\$1>")).replace(/^#/gm,"\\#")).replace(/^(\s*)([-=]{3,})(\s*)$/,"$1\\$2$3")).replace(/^( {0,3}\d+)\./gm,"$1\\.")).replace(/^( {0,3})([+-])/gm,"$1\\$2")).replace(/]([\s]*)\(/g,"\\]$1\\(")).replace(/^ {0,3}\[([\S \t]*?)]:/gm,"\\[$1]:")});"function"==typeof define&&define.amd?define(function(){"use strict";return x}):"undefined"!=typeof module&&module.exports?module.exports=x:this.showdown=x}.call(this);
diff --git a/lib/Data/Database.php b/lib/Data/Database.php
index 3771b5d..4636f3c 100644
--- a/lib/Data/Database.php
+++ b/lib/Data/Database.php
@@ -289,11 +289,11 @@ class Database extends AbstractData
     {
         try {
             $row = $this->_select(
-                'SELECT * FROM "' . $this->_sanitizeIdentifier('paste') .
+                'SELECT "dataid" FROM "' . $this->_sanitizeIdentifier('paste') .
                 '" WHERE "dataid" = ?', array($pasteid), true
             );
         } catch (Exception $e) {
-            $row = false;
+            return false;
         }
         return (bool) $row;
     }
@@ -486,19 +486,13 @@ class Database extends AbstractData
      */
     protected function _getExpiredPastes($batchsize)
     {
-        $pastes = array();
-        $rows   = $this->_select(
+        $statement = $this->_db->prepare(
             'SELECT "dataid" FROM "' . $this->_sanitizeIdentifier('paste') .
             '" WHERE "expiredate" < ? AND "expiredate" != ? ' .
-            ($this->_type === 'oci' ? 'FETCH NEXT ? ROWS ONLY' : 'LIMIT ?'),
-            array(time(), 0, $batchsize)
+            ($this->_type === 'oci' ? 'FETCH NEXT ? ROWS ONLY' : 'LIMIT ?')
         );
-        if (is_array($rows) && count($rows)) {
-            foreach ($rows as $row) {
-                $pastes[] = $row['dataid'];
-            }
-        }
-        return $pastes;
+        $statement->execute(array(time(), 0, $batchsize));
+        return $statement->fetchAll(PDO::FETCH_COLUMN, 0);
     }
 
     /**
@@ -506,10 +500,9 @@ class Database extends AbstractData
      */
     public function getAllPastes()
     {
-        $pastes = $this->_db->_query(
+        return $this->_db->query(
             'SELECT "dataid" FROM "' . $this->_sanitizeIdentifier('paste') . '"'
         )->fetchAll(PDO::FETCH_COLUMN, 0);
-        return $pastes;
     }
 
     /**
diff --git a/lib/Data/Filesystem.php b/lib/Data/Filesystem.php
index 2d08214..2a3c688 100644
--- a/lib/Data/Filesystem.php
+++ b/lib/Data/Filesystem.php
@@ -22,6 +22,22 @@ use PrivateBin\Json;
  */
 class Filesystem extends AbstractData
 {
+    /**
+     * glob() pattern of the two folder levels and the paste files under the
+     * configured path. Needs to return both files with and without .php suffix,
+     * so they can be hardened by _prependRename(), which is hooked into exists().
+     *
+     * > Note that wildcard patterns are not regular expressions, although they
+     * > are a bit similar.
+     *
+     * @link  https://man7.org/linux/man-pages/man7/glob.7.html
+     * @const string
+     */
+    const PASTE_FILE_PATTERN = DIRECTORY_SEPARATOR . '[a-f0-9][a-f0-9]' .
+        DIRECTORY_SEPARATOR . '[a-f0-9][a-f0-9]' . DIRECTORY_SEPARATOR .
+        '[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]' .
+        '[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]*';
+
     /**
      * first line in paste or comment files, to protect their contents from browsing exposed data directories
      *
@@ -340,63 +356,24 @@ class Filesystem extends AbstractData
      */
     protected function _getExpiredPastes($batchsize)
     {
-        $pastes     = array();
-        $firstLevel = array_filter(
-            scandir($this->_path),
-            'PrivateBin\Data\Filesystem::_isFirstLevelDir'
-        );
-        if (count($firstLevel) > 0) {
-            // try at most 10 times the $batchsize pastes before giving up
-            for ($i = 0, $max = $batchsize * 10; $i < $max; ++$i) {
-                $firstKey    = array_rand($firstLevel);
-                $secondLevel = array_filter(
-                    scandir($this->_path . DIRECTORY_SEPARATOR . $firstLevel[$firstKey]),
-                    'PrivateBin\Data\Filesystem::_isSecondLevelDir'
-                );
-
-                // skip this folder in the next checks if it is empty
-                if (count($secondLevel) == 0) {
-                    unset($firstLevel[$firstKey]);
-                    continue;
-                }
-
-                $secondKey = array_rand($secondLevel);
-                $path      = $this->_path . DIRECTORY_SEPARATOR .
-                    $firstLevel[$firstKey] . DIRECTORY_SEPARATOR .
-                    $secondLevel[$secondKey];
-                if (!is_dir($path)) {
-                    continue;
-                }
-                $thirdLevel = array_filter(
-                    array_map(
-                        function ($filename) {
-                            return strlen($filename) >= 20 ?
-                                substr($filename, 0, -4) :
-                                $filename;
-                        },
-                        scandir($path)
-                    ),
-                    'PrivateBin\\Model\\Paste::isValidId'
-                );
-                if (count($thirdLevel) == 0) {
-                    continue;
-                }
-                $thirdKey = array_rand($thirdLevel);
-                $pasteid  = $thirdLevel[$thirdKey];
-                if (in_array($pasteid, $pastes)) {
-                    continue;
-                }
-
-                if ($this->exists($pasteid)) {
-                    $data = $this->read($pasteid);
-                    if (
-                        array_key_exists('expire_date', $data['meta']) &&
-                        $data['meta']['expire_date'] < time()
-                    ) {
-                        $pastes[] = $pasteid;
-                        if (count($pastes) >= $batchsize) {
-                            break;
-                        }
+        $pastes = array();
+        $count  = 0;
+        $time   = time();
+        foreach ($this->_getPasteIterator() as $file) {
+            if ($file->isDir()) {
+                continue;
+            }
+            $pasteid = $file->getBasename('.php');
+            if ($this->exists($pasteid)) {
+                $data = $this->read($pasteid);
+                if (
+                    array_key_exists('expire_date', $data['meta']) &&
+                    $data['meta']['expire_date'] < $time
+                ) {
+                    $pastes[] = $pasteid;
+                    ++$count;
+                    if ($count >= $batchsize) {
+                        break;
                     }
                 }
             }
@@ -409,38 +386,12 @@ class Filesystem extends AbstractData
      */
     public function getAllPastes()
     {
-        $pastes  = array();
-        $subdirs = scandir($this->_path);
-        if ($subdirs === false) {
-            dieerr('Unable to list directory ' . $this->_path);
-        }
-        $subdirs = preg_grep('/^[^.].$/', $subdirs);
-
-        foreach ($subdirs as $subdir) {
-            $subpath = $this->_path . DIRECTORY_SEPARATOR . $subdir;
-
-            $subsubdirs = scandir($subpath);
-            if ($subsubdirs === false) {
-                dieerr('Unable to list directory ' . $subpath);
-            }
-            $subsubdirs = preg_grep('/^[^.].$/', $subsubdirs);
-            foreach ($subsubdirs as $subsubdir) {
-                $subsubpath = $subpath . DIRECTORY_SEPARATOR . $subsubdir;
-
-                $files = scandir($subsubpath);
-                if ($files === false) {
-                    dieerr('Unable to list directory ' . $subsubpath);
-                }
-                $files = preg_grep('/\.php$/', $files);
-
-                foreach ($files as $file) {
-                    if (substr($file, 0, 4) === $subdir . $subsubdir) {
-                        $pastes[] = substr($file, 0, strlen($file) - 4);
-                    }
-                }
+        $pastes = array();
+        foreach ($this->_getPasteIterator() as $file) {
+            if ($file->isFile()) {
+                $pastes[] = $file->getBasename('.php');
             }
         }
-
         return $pastes;
     }
 
@@ -481,28 +432,17 @@ class Filesystem extends AbstractData
     }
 
     /**
-     * Check that the given element is a valid first level directory.
+     * Get an iterator matching paste files.
+     *
+     * Note that creating the iterator issues the glob() call, so we can't pre-
+     * generate this object before files that should get matched exist.
      *
      * @access private
-     * @param  string $element
-     * @return bool
+     * @return \GlobIterator
      */
-    private function _isFirstLevelDir($element)
+    private function _getPasteIterator()
     {
-        return $this->_isSecondLevelDir($element) &&
-            is_dir($this->_path . DIRECTORY_SEPARATOR . $element);
-    }
-
-    /**
-     * Check that the given element is a valid second level directory.
-     *
-     * @access private
-     * @param  string $element
-     * @return bool
-     */
-    private function _isSecondLevelDir($element)
-    {
-        return (bool) preg_match('/^[a-f0-9]{2}$/', $element);
+        return new \GlobIterator($this->_path . self::PASTE_FILE_PATTERN);
     }
 
     /**
diff --git a/lib/Data/GoogleCloudStorage.php b/lib/Data/GoogleCloudStorage.php
index dd2aff3..e07e818 100644
--- a/lib/Data/GoogleCloudStorage.php
+++ b/lib/Data/GoogleCloudStorage.php
@@ -67,7 +67,9 @@ class GoogleCloudStorage extends AbstractData
         $this->_client = class_exists('StorageClientStub', false) ?
             new \StorageClientStub(array()) :
             new StorageClient(array('suppressKeyFileNotice' => true));
-        $this->_bucket = $this->_client->bucket($bucket);
+        if (isset($bucket)) {
+            $this->_bucket = $this->_client->bucket($bucket);
+        }
     }
 
     /**
diff --git a/lib/View.php b/lib/View.php
index c6332a3..d35906f 100644
--- a/lib/View.php
+++ b/lib/View.php
@@ -6,7 +6,7 @@
  *
  * @link      https://github.com/PrivateBin/PrivateBin
  * @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
- * @license   http://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
+ * @license   https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
  * @version   1.4.0
  */
 
diff --git a/lib/Vizhash16x16.php b/lib/Vizhash16x16.php
index 351ba96..34d09cd 100644
--- a/lib/Vizhash16x16.php
+++ b/lib/Vizhash16x16.php
@@ -5,7 +5,7 @@
  * Visual Hash implementation in php4+GD,
  * stripped down and modified version for PrivateBin
  *
- * @link      http://sebsauvage.net/wiki/doku.php?id=php:vizhash_gd
+ * @link      https://sebsauvage.net/wiki/doku.php?id=php:vizhash_gd
  * @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
  * @license   https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
  * @version   0.0.5 beta PrivateBin 1.4.0
@@ -166,7 +166,7 @@ class Vizhash16x16
      * Gradient function
      *
      * taken from:
-     * http://www.supportduweb.com/scripts_tutoriaux-code-source-41-gd-faire-un-degrade-en-php-gd-fonction-degrade-imagerie.html
+     * @link   https://www.supportduweb.com/scripts_tutoriaux-code-source-41-gd-faire-un-degrade-en-php-gd-fonction-degrade-imagerie.html
      *
      * @access private
      * @param  resource $img
diff --git a/tpl/bootstrap.php b/tpl/bootstrap.php
index b3441a7..d5c57f6 100644
--- a/tpl/bootstrap.php
+++ b/tpl/bootstrap.php
@@ -42,7 +42,7 @@ if ($SYNTAXHIGHLIGHTING) :
 endif;
 ?>
 		<noscript><link type="text/css" rel="stylesheet" href="css/noscript.css" /></noscript>
-		<script type="text/javascript" data-cfasync="false" src="js/jquery-3.6.0.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/jquery-3.6.1.js" integrity="sha512-aVKKRRi/Q/YV+4mjoKBsE4x3H+BkegoM/em46NNlCqNTmUYADjBbeNefNxYV7giUp0VxICtqdrbqU7iVaeZNXA==" crossorigin="anonymous"></script>
 <?php
 if ($QRCODE) :
 ?>
@@ -67,11 +67,11 @@ if ($SYNTAXHIGHLIGHTING) :
 endif;
 if ($MARKDOWN) :
 ?>
-		<script type="text/javascript" data-cfasync="false" src="js/showdown-2.0.3.js" integrity="sha512-vcfjvW3UKHD/4vlQx804cqWK88jFmjsWRsZ8/u5YEcyHB1IituxrXDU7TvdqsFVsMnxpE/UIEo25/SYW+puWHw==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/showdown-2.1.0.js" integrity="sha512-WYXZgkTR0u/Y9SVIA4nTTOih0kXMEd8RRV6MLFdL6YU8ymhR528NLlYQt1nlJQbYz4EW+ZsS0fx1awhiQJme1Q==" crossorigin="anonymous"></script>
 <?php
 endif;
 ?>
-		<script type="text/javascript" data-cfasync="false" src="js/purify-2.3.6.js" integrity="sha512-N1GGPjbqLbwK821ZN7C925WuTwU4aDxz2CEEOXQ6/s6m6MBwVj8fh5fugiE2hzsm0xud3q7jpjZQ4ILnpMREYQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/purify-2.4.6.js" integrity="sha512-+jcx+EqNbaFT4OHS86zGwU1SNAAZ7hG2pJlwMpXoe9AvTp37BrXMQ29g2GhdyQHTvYWaNlTQIkWXYM0Lvt8GiQ==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/legacy.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-0he/s7UnjLf2pxLH+EIGImaUBhVzpngrL5PId/QB2FcstucrPUPOhQpqJcGvtmVPyuXckiktEwwrz4Sn4Mi3Tw==" crossorigin="anonymous"></script>
 		<!-- icon -->
diff --git a/tpl/page.php b/tpl/page.php
index 42380ab..34d0079 100644
--- a/tpl/page.php
+++ b/tpl/page.php
@@ -21,7 +21,7 @@ if ($SYNTAXHIGHLIGHTING):
     endif;
 endif;
 ?>
-		<script type="text/javascript" data-cfasync="false" src="js/jquery-3.6.0.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/jquery-3.6.1.js" integrity="sha512-aVKKRRi/Q/YV+4mjoKBsE4x3H+BkegoM/em46NNlCqNTmUYADjBbeNefNxYV7giUp0VxICtqdrbqU7iVaeZNXA==" crossorigin="anonymous"></script>
 <?php
 if ($QRCODE):
 ?>
@@ -45,11 +45,11 @@ if ($SYNTAXHIGHLIGHTING):
 endif;
 if ($MARKDOWN):
 ?>
-		<script type="text/javascript" data-cfasync="false" src="js/showdown-2.0.3.js" integrity="sha512-vcfjvW3UKHD/4vlQx804cqWK88jFmjsWRsZ8/u5YEcyHB1IituxrXDU7TvdqsFVsMnxpE/UIEo25/SYW+puWHw==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/showdown-2.1.0.js" integrity="sha512-WYXZgkTR0u/Y9SVIA4nTTOih0kXMEd8RRV6MLFdL6YU8ymhR528NLlYQt1nlJQbYz4EW+ZsS0fx1awhiQJme1Q==" crossorigin="anonymous"></script>
 <?php
 endif;
 ?>
-		<script type="text/javascript" data-cfasync="false" src="js/purify-2.3.6.js" integrity="sha512-N1GGPjbqLbwK821ZN7C925WuTwU4aDxz2CEEOXQ6/s6m6MBwVj8fh5fugiE2hzsm0xud3q7jpjZQ4ILnpMREYQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/purify-2.4.6.js" integrity="sha512-+jcx+EqNbaFT4OHS86zGwU1SNAAZ7hG2pJlwMpXoe9AvTp37BrXMQ29g2GhdyQHTvYWaNlTQIkWXYM0Lvt8GiQ==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/legacy.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-0he/s7UnjLf2pxLH+EIGImaUBhVzpngrL5PId/QB2FcstucrPUPOhQpqJcGvtmVPyuXckiktEwwrz4Sn4Mi3Tw==" crossorigin="anonymous"></script>
 		<!-- icon -->
diff --git a/tst/MigrateTest.php b/tst/MigrateTest.php
new file mode 100644
index 0000000..eccca26
--- /dev/null
+++ b/tst/MigrateTest.php
@@ -0,0 +1,85 @@
+<?php
+use PrivateBin\Data\Database;
+use PrivateBin\Data\Filesystem;
+
+class MigrateTest extends PHPUnit_Framework_TestCase
+{
+    protected $_model_1;
+
+    protected $_model_2;
+
+    protected $_path;
+
+    protected $_path_instance_1;
+
+    protected $_path_instance_2;
+
+    public function setUp()
+    {
+        /* Setup Routine */
+        $this->_path            = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'privatebin_data';
+        $this->_path_instance_1 = $this->_path . DIRECTORY_SEPARATOR . 'instance_1';
+        $this->_path_instance_2 = $this->_path . DIRECTORY_SEPARATOR . 'instance_2';
+        if (!is_dir($this->_path)) {
+            mkdir($this->_path);
+        }
+        mkdir($this->_path_instance_1);
+        mkdir($this->_path_instance_1 . DIRECTORY_SEPARATOR . 'cfg');
+        mkdir($this->_path_instance_2);
+        mkdir($this->_path_instance_2 . DIRECTORY_SEPARATOR . 'cfg');
+        $options                         = parse_ini_file(CONF_SAMPLE, true);
+        $options['purge']['limit']       = 0;
+        $options['model_options']['dir'] = $this->_path_instance_1 . DIRECTORY_SEPARATOR . 'data';
+        $this->_model_1                  = new Filesystem($options['model_options']);
+        Helper::createIniFile($this->_path_instance_1 . DIRECTORY_SEPARATOR . 'cfg' . DIRECTORY_SEPARATOR . 'conf.php', $options);
+
+        $options['model']          = array(
+            'class' => 'Database',
+        );
+        $options['model_options'] = array(
+            'dsn' => 'sqlite:' . $this->_path_instance_2 . DIRECTORY_SEPARATOR . 'test.sq3',
+            'usr' => null,
+            'pwd' => null,
+            'opt' => array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION),
+        );
+        $this->_model_2 = new Database($options['model_options']);
+        Helper::createIniFile($this->_path_instance_2 . DIRECTORY_SEPARATOR . 'cfg' . DIRECTORY_SEPARATOR . 'conf.php', $options);
+    }
+
+    public function tearDown()
+    {
+        /* Tear Down Routine */
+        Helper::rmDir($this->_path);
+    }
+
+    public function testMigrate()
+    {
+        if (version_compare(PHP_VERSION, '7.1.0') < 0) {
+            return; // skip test on unsupported PHP versions
+        }
+
+        $this->_model_1->delete(Helper::getPasteId());
+        $this->_model_2->delete(Helper::getPasteId());
+
+        // storing paste & comment
+        $this->_model_1->create(Helper::getPasteId(), Helper::getPaste());
+        $this->_model_1->createComment(Helper::getPasteId(), Helper::getPasteId(), Helper::getCommentId(), Helper::getComment());
+
+        // migrate files to database
+        $output    = null;
+        $exit_code = 255;
+        exec('php ' . PATH . 'bin' . DIRECTORY_SEPARATOR . 'migrate --delete-after ' . $this->_path_instance_1 . DIRECTORY_SEPARATOR . 'cfg ' . $this->_path_instance_2 . DIRECTORY_SEPARATOR . 'cfg', $output, $exit_code);
+        $this->assertEquals(0, $exit_code, 'migrate script exits 0');
+        $this->assertFalse($this->_model_1->exists(Helper::getPasteId()), 'paste removed after migrating it');
+        $this->assertFalse($this->_model_1->existsComment(Helper::getPasteId(), Helper::getPasteId(), Helper::getCommentId()), 'comment removed after migrating it');
+        $this->assertTrue($this->_model_2->exists(Helper::getPasteId()), 'paste migrated');
+        $this->assertTrue($this->_model_2->existsComment(Helper::getPasteId(), Helper::getPasteId(), Helper::getCommentId()), 'comment migrated');
+
+        // migrate back to files
+        $exit_code = 255;
+        exec('php ' . PATH . 'bin' . DIRECTORY_SEPARATOR . 'migrate ' . $this->_path_instance_2 . DIRECTORY_SEPARATOR . 'cfg ' . $this->_path_instance_1 . DIRECTORY_SEPARATOR . 'cfg', $output, $exit_code);
+        $this->assertEquals(0, $exit_code, 'migrate script exits 0');
+        $this->assertTrue($this->_model_1->exists(Helper::getPasteId()), 'paste migrated back');
+        $this->assertTrue($this->_model_1->existsComment(Helper::getPasteId(), Helper::getPasteId(), Helper::getCommentId()), 'comment migrated back');
+    }
+}
diff --git a/tst/ModelTest.php b/tst/ModelTest.php
index cf04b4d..562bdc4 100644
--- a/tst/ModelTest.php
+++ b/tst/ModelTest.php
@@ -259,7 +259,10 @@ class ModelTest extends PHPUnit_Framework_TestCase
         $paste = $model->getPaste();
         $paste->setData($pasteData);
         $paste->store();
-        $paste->exists();
+        $this->assertTrue($paste->exists(), 'paste exists before creating comment');
+
+        $comment = $paste->getComment(Helper::getPasteId());
+        $comment->setData($commentData);
 
         $db = new PDO(
             $options['model_options']['dsn'],
@@ -271,8 +274,9 @@ class ModelTest extends PHPUnit_Framework_TestCase
         $statement->execute();
         $statement->closeCursor();
 
-        $comment = $paste->getComment(Helper::getPasteId());
-        $comment->setData($commentData);
+        if (version_compare(PHP_VERSION, '7.2.0') < 0) {
+            throw new Exception('For some reason, this test stopped working in PHP < 7.2', 70);
+        }
         $comment->store();
     }
 
diff --git a/tst/phpunit.xml b/tst/phpunit.xml
index caaa67d..20eb4d5 100644
--- a/tst/phpunit.xml
+++ b/tst/phpunit.xml
@@ -1,7 +1,6 @@
 <phpunit bootstrap="Bootstrap.php" colors="true">
 	<testsuite name="PrivateBin Test Suite">
 		<directory suffix=".php">./</directory>
-		<exclude>ConfigurationTestGenerator.php</exclude>
 	</testsuite>
 	<filter>
 		<whitelist>
diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php
index afef3fa..fce8549 100644
--- a/vendor/composer/ClassLoader.php
+++ b/vendor/composer/ClassLoader.php
@@ -37,130 +37,57 @@ namespace Composer\Autoload;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Jordi Boggiano <j.boggiano@seld.be>
- * @see    https://www.php-fig.org/psr/psr-0/
- * @see    https://www.php-fig.org/psr/psr-4/
+ * @see    http://www.php-fig.org/psr/psr-0/
+ * @see    http://www.php-fig.org/psr/psr-4/
  */
 class ClassLoader
 {
-    /** @var ?string */
-    private $vendorDir;
-
     // PSR-4
-    /**
-     * @var array[]
-     * @psalm-var array<string, array<string, int>>
-     */
     private $prefixLengthsPsr4 = array();
-    /**
-     * @var array[]
-     * @psalm-var array<string, array<int, string>>
-     */
     private $prefixDirsPsr4 = array();
-    /**
-     * @var array[]
-     * @psalm-var array<string, string>
-     */
     private $fallbackDirsPsr4 = array();
 
     // PSR-0
-    /**
-     * @var array[]
-     * @psalm-var array<string, array<string, string[]>>
-     */
     private $prefixesPsr0 = array();
-    /**
-     * @var array[]
-     * @psalm-var array<string, string>
-     */
     private $fallbackDirsPsr0 = array();
 
-    /** @var bool */
     private $useIncludePath = false;
-
-    /**
-     * @var string[]
-     * @psalm-var array<string, string>
-     */
     private $classMap = array();
-
-    /** @var bool */
     private $classMapAuthoritative = false;
-
-    /**
-     * @var bool[]
-     * @psalm-var array<string, bool>
-     */
     private $missingClasses = array();
-
-    /** @var ?string */
     private $apcuPrefix;
 
-    /**
-     * @var self[]
-     */
-    private static $registeredLoaders = array();
-
-    /**
-     * @param ?string $vendorDir
-     */
-    public function __construct($vendorDir = null)
-    {
-        $this->vendorDir = $vendorDir;
-    }
-
-    /**
-     * @return string[]
-     */
     public function getPrefixes()
     {
         if (!empty($this->prefixesPsr0)) {
-            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
         }
 
         return array();
     }
 
-    /**
-     * @return array[]
-     * @psalm-return array<string, array<int, string>>
-     */
     public function getPrefixesPsr4()
     {
         return $this->prefixDirsPsr4;
     }
 
-    /**
-     * @return array[]
-     * @psalm-return array<string, string>
-     */
     public function getFallbackDirs()
     {
         return $this->fallbackDirsPsr0;
     }
 
-    /**
-     * @return array[]
-     * @psalm-return array<string, string>
-     */
     public function getFallbackDirsPsr4()
     {
         return $this->fallbackDirsPsr4;
     }
 
-    /**
-     * @return string[] Array of classname => path
-     * @psalm-return array<string, string>
-     */
     public function getClassMap()
     {
         return $this->classMap;
     }
 
     /**
-     * @param string[] $classMap Class to filename map
-     * @psalm-param array<string, string> $classMap
-     *
-     * @return void
+     * @param array $classMap Class to filename map
      */
     public function addClassMap(array $classMap)
     {
@@ -175,11 +102,9 @@ class ClassLoader
      * 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 string[]|string $paths   The PSR-0 root directories
-     * @param bool            $prepend Whether to prepend the directories
-     *
-     * @return void
+     * @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)
     {
@@ -222,13 +147,11 @@ class ClassLoader
      * 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 string[]|string $paths   The PSR-4 base directories
-     * @param bool            $prepend Whether to prepend the directories
+     * @param string       $prefix  The prefix/namespace, with trailing '\\'
+     * @param array|string $paths   The PSR-4 base directories
+     * @param bool         $prepend Whether to prepend the directories
      *
      * @throws \InvalidArgumentException
-     *
-     * @return void
      */
     public function addPsr4($prefix, $paths, $prepend = false)
     {
@@ -272,10 +195,8 @@ class ClassLoader
      * 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 string[]|string $paths  The PSR-0 base directories
-     *
-     * @return void
+     * @param string       $prefix The prefix
+     * @param array|string $paths  The PSR-0 base directories
      */
     public function set($prefix, $paths)
     {
@@ -290,12 +211,10 @@ class ClassLoader
      * 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 string[]|string $paths  The PSR-4 base directories
+     * @param string       $prefix The prefix/namespace, with trailing '\\'
+     * @param array|string $paths  The PSR-4 base directories
      *
      * @throws \InvalidArgumentException
-     *
-     * @return void
      */
     public function setPsr4($prefix, $paths)
     {
@@ -315,8 +234,6 @@ class ClassLoader
      * Turns on searching the include path for class files.
      *
      * @param bool $useIncludePath
-     *
-     * @return void
      */
     public function setUseIncludePath($useIncludePath)
     {
@@ -339,8 +256,6 @@ class ClassLoader
      * that have not been registered with the class map.
      *
      * @param bool $classMapAuthoritative
-     *
-     * @return void
      */
     public function setClassMapAuthoritative($classMapAuthoritative)
     {
@@ -361,8 +276,6 @@ class ClassLoader
      * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
      *
      * @param string|null $apcuPrefix
-     *
-     * @return void
      */
     public function setApcuPrefix($apcuPrefix)
     {
@@ -383,44 +296,25 @@ class ClassLoader
      * Registers this instance as an autoloader.
      *
      * @param bool $prepend Whether to prepend the autoloader or not
-     *
-     * @return void
      */
     public function register($prepend = false)
     {
         spl_autoload_register(array($this, 'loadClass'), true, $prepend);
-
-        if (null === $this->vendorDir) {
-            return;
-        }
-
-        if ($prepend) {
-            self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
-        } else {
-            unset(self::$registeredLoaders[$this->vendorDir]);
-            self::$registeredLoaders[$this->vendorDir] = $this;
-        }
     }
 
     /**
      * Unregisters this instance as an autoloader.
-     *
-     * @return void
      */
     public function unregister()
     {
         spl_autoload_unregister(array($this, 'loadClass'));
-
-        if (null !== $this->vendorDir) {
-            unset(self::$registeredLoaders[$this->vendorDir]);
-        }
     }
 
     /**
      * Loads the given class or interface.
      *
      * @param  string    $class The name of the class
-     * @return true|null True if loaded, null otherwise
+     * @return bool|null True if loaded, null otherwise
      */
     public function loadClass($class)
     {
@@ -429,8 +323,6 @@ class ClassLoader
 
             return true;
         }
-
-        return null;
     }
 
     /**
@@ -475,21 +367,6 @@ class ClassLoader
         return $file;
     }
 
-    /**
-     * Returns the currently registered loaders indexed by their corresponding vendor directories.
-     *
-     * @return self[]
-     */
-    public static function getRegisteredLoaders()
-    {
-        return self::$registeredLoaders;
-    }
-
-    /**
-     * @param  string       $class
-     * @param  string       $ext
-     * @return string|false
-     */
     private function findFileWithExtension($class, $ext)
     {
         // PSR-4 lookup
@@ -561,10 +438,6 @@ class ClassLoader
  * Scope isolated include.
  *
  * Prevents access to $this/self from included files.
- *
- * @param  string $file
- * @return void
- * @private
  */
 function includeFile($file)
 {
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
index ef2b6e9..12566b8 100644
--- a/vendor/composer/autoload_classmap.php
+++ b/vendor/composer/autoload_classmap.php
@@ -6,7 +6,6 @@ $vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname($vendorDir);
 
 return array(
-    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
     'IPLib\\Address\\AddressInterface' => $vendorDir . '/mlocati/ip-lib/src/Address/AddressInterface.php',
     'IPLib\\Address\\AssignedRange' => $vendorDir . '/mlocati/ip-lib/src/Address/AssignedRange.php',
     'IPLib\\Address\\IPv4' => $vendorDir . '/mlocati/ip-lib/src/Address/IPv4.php',
@@ -53,6 +52,7 @@ return array(
     'Jdenticon\\Rendering\\ColorTheme' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/ColorTheme.php',
     'Jdenticon\\Rendering\\IconGenerator' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/IconGenerator.php',
     'Jdenticon\\Rendering\\ImagickRenderer' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/ImagickRenderer.php',
+    'Jdenticon\\Rendering\\ImagickRendererLine' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/ImagickRenderer.php',
     'Jdenticon\\Rendering\\InternalPngRenderer' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/InternalPngRenderer.php',
     'Jdenticon\\Rendering\\Point' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/Point.php',
     'Jdenticon\\Rendering\\Rectangle' => $vendorDir . '/jdenticon/jdenticon/src/Rendering/Rectangle.php',
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
index 5b03524..2e234b9 100644
--- a/vendor/composer/autoload_real.php
+++ b/vendor/composer/autoload_real.php
@@ -13,24 +13,19 @@ class ComposerAutoloaderInitDontChange
         }
     }
 
-    /**
-     * @return \Composer\Autoload\ClassLoader
-     */
     public static function getLoader()
     {
         if (null !== self::$loader) {
             return self::$loader;
         }
 
-        require __DIR__ . '/platform_check.php';
-
         spl_autoload_register(array('ComposerAutoloaderInitDontChange', 'loadClassLoader'), true, true);
-        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(\dirname(__FILE__)));
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
         spl_autoload_unregister(array('ComposerAutoloaderInitDontChange', 'loadClassLoader'));
 
         $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
         if ($useStaticLoader) {
-            require __DIR__ . '/autoload_static.php';
+            require_once __DIR__ . '/autoload_static.php';
 
             call_user_func(\Composer\Autoload\ComposerStaticInitDontChange::getInitializer($loader));
         } else {
@@ -65,16 +60,11 @@ class ComposerAutoloaderInitDontChange
     }
 }
 
-/**
- * @param string $fileIdentifier
- * @param string $file
- * @return void
- */
 function composerRequireDontChange($fileIdentifier, $file)
 {
     if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
-        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
-
         require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
     }
 }
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index b03812e..d6b1145 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -46,7 +46,6 @@ class ComposerStaticInitDontChange
     );
 
     public static $classMap = array (
-        'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',
         'IPLib\\Address\\AddressInterface' => __DIR__ . '/..' . '/mlocati/ip-lib/src/Address/AddressInterface.php',
         'IPLib\\Address\\AssignedRange' => __DIR__ . '/..' . '/mlocati/ip-lib/src/Address/AssignedRange.php',
         'IPLib\\Address\\IPv4' => __DIR__ . '/..' . '/mlocati/ip-lib/src/Address/IPv4.php',
@@ -93,6 +92,7 @@ class ComposerStaticInitDontChange
         'Jdenticon\\Rendering\\ColorTheme' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/ColorTheme.php',
         'Jdenticon\\Rendering\\IconGenerator' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/IconGenerator.php',
         'Jdenticon\\Rendering\\ImagickRenderer' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/ImagickRenderer.php',
+        'Jdenticon\\Rendering\\ImagickRendererLine' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/ImagickRenderer.php',
         'Jdenticon\\Rendering\\InternalPngRenderer' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/InternalPngRenderer.php',
         'Jdenticon\\Rendering\\Point' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/Point.php',
         'Jdenticon\\Rendering\\Rectangle' => __DIR__ . '/..' . '/jdenticon/jdenticon/src/Rendering/Rectangle.php',
diff --git a/vendor/jdenticon/jdenticon/src/Canvas/Rasterization/SuperSampleBuffer.php b/vendor/jdenticon/jdenticon/src/Canvas/Rasterization/SuperSampleBuffer.php
index 82860e2..45a611d 100644
--- a/vendor/jdenticon/jdenticon/src/Canvas/Rasterization/SuperSampleBuffer.php
+++ b/vendor/jdenticon/jdenticon/src/Canvas/Rasterization/SuperSampleBuffer.php
@@ -21,6 +21,15 @@ class SuperSampleBuffer
     const IDX_G = 3;
     const IDX_B = 4;
 
+    private $samples;
+    private $samplesPerPixel;
+
+    private $pixelOffset;
+    private $subPixelOffset;
+
+    private $width;
+    private $used;
+
     /**
      * Creates a color buffer keeping an average color out of several
      * color samples per pixel.