Add missing files

src/danog/MadelineProto/Snitch.php

@@ -0,0 +1,113 @@
+<?php
+/**
+ * Snitch module.
+ *
+ * This file is part of MadelineProto.
+ * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Affero General Public License for more details.
+ * You should have received a copy of the GNU General Public License along with MadelineProto.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author    Daniil Gentili <daniil@daniil.it>
+ * @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
+ * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
+ *
+ * @link https://docs.madelineproto.xyz MadelineProto documentation
+ */
+
+namespace danog\MadelineProto;
+
+/**
+ * Snitch.
+ */
+class Snitch
+{
+    /**
+     * Maximum starts without a phar file.
+     */
+    const MAX_NO_PHAR_STARTS = 3;
+    /**
+     * Maximum starts without a logfile.
+     */
+    const MAX_NO_LOG_STARTS = 3;
+
+    /**
+     * Whether madeline.phar was downloaded from scratch.
+     */
+    private array $hadInstalled = [];
+    /**
+     * Whether logs were enabled.
+     */
+    private array $hadLog = [];
+
+    /**
+     * Whether we currently have a logfile.
+     */
+    private static bool $hasLog = true;
+    /**
+     * Whether we checked the logfile.
+     */
+    private static int $snitchedLog = 0;
+
+    /**
+     * Snitch on logfile.
+     *
+     * @param string $file Logfile
+     *
+     * @return void
+     */
+    public static function logFile(string $file)
+    {
+        if (self::$snitchedLog) {
+            return;
+        }
+        self::$snitchedLog = 1;
+        \clearstatcache(true, $file);
+        self::$hasLog = \file_exists($file);
+    }
+    /**
+     * Called before serialization.
+     *
+     * @return array
+     */
+    public function __sleep()
+    {
+        if (self::$snitchedLog === 1) {
+            $this->hadLog []= self::$hasLog;
+            if (\count($this->hadLog) > self::MAX_NO_LOG_STARTS) {
+                \array_shift($this->hadLog);
+                if (!\array_sum($this->hadLog)) { // For three times, MadelineProto was started with no logfile
+                    $this->die();
+                }
+            }
+            self::$snitchedLog++;
+        }
+        return ['hadInstalled', 'hadLog'];
+    }
+    /**
+     * Wakeup function.
+     */
+    public function __wakeup()
+    {
+        if (\defined(\HAD_MADELINE_PHAR::class)) {
+            $this->hadInstalled []= \HAD_MADELINE_PHAR;
+            if (\count($this->hadInstalled) > self::MAX_NO_PHAR_STARTS) {
+                \array_shift($this->hadInstalled);
+                if (!\array_sum($this->hadInstalled)) { // For three times, MadelineProto was started with no phar file
+                    $this->die();
+                }
+            }
+        }
+    }
+
+    /**
+     * Die.
+     *
+     * @return void
+     */
+    private function die(): void
+    {
+        die('Please do not remove madeline.phar, madeline.php and MadelineProto.log, or else MadelineProto will crash. If you have any problem with MadelineProto, report it to https://github.com/danog/MadelineProto or https://t.me/pwrtelegramgroup');
+    }
+}