From a49c63af0964234ff6c059033d644b788bdeb669 Mon Sep 17 00:00:00 2001
From: Rhilip <rhilipruan@gmail.com>
Date: Fri, 17 Jan 2020 10:26:35 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9C=AA=E4=BD=BF=E7=94=A8=E5=88=B0Bencode?=
 =?UTF-8?q?=E5=BA=93?=
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---
 app/Class/Bencode.php | 141 ------------------------------------------
 1 file changed, 141 deletions(-)
 delete mode 100644 app/Class/Bencode.php

diff --git a/app/Class/Bencode.php b/app/Class/Bencode.php
deleted file mode 100644
index 641597f..0000000
--- a/app/Class/Bencode.php
+++ /dev/null
@@ -1,141 +0,0 @@
-<?php
-/**
- * Created by PhpStorm.
- * User: Rhilip
- * Date: 2019/4/21
- * Time: 21:12
- */
-class Bencode
-{
-    /**
-     * Decodes a BEncoded string to the following values:
-     * - Dictionary (starts with d, ends with e)
-     * - List (starts with l, ends with e
-     * - Integer (starts with i, ends with e
-     * - String (starts with number denoting number of characters followed by : and then the string)
-     *
-     * @see https://wiki.theory.org/index.php/BitTorrentSpecification
-     *
-     * @param string $data
-     * @param int $pos
-     * @return mixed
-     */
-    public static function decode($data, &$pos = 0)
-    {
-        $start_decode = ($pos === 0);
-        if ($data[$pos] === 'd') {
-            $pos++;
-            $return = [];
-            while ($data[$pos] !== 'e') {
-                $key = self::decode($data, $pos);
-                $value = self::decode($data, $pos);
-                if ($key === null || $value === null) {
-                    break;
-                }
-                if (!is_string($key)) {
-                    throw new RuntimeException('Invalid key type, must be string: ' . gettype($key));
-                }
-                $return[$key] = $value;
-            }
-            ksort($return);
-            $pos++;
-        } elseif ($data[$pos] === 'l') {
-            $pos++;
-            $return = [];
-            while ($data[$pos] !== 'e') {
-                $value = self::decode($data, $pos);
-                $return[] = $value;
-            }
-            $pos++;
-        } elseif ($data[$pos] === 'i') {
-            $pos++;
-            $digits = strpos($data, 'e', $pos) - $pos;
-            $return = substr($data, $pos, $digits);
-            if ($return === '-0') {
-                throw new RuntimeException('Cannot have integer value -0');
-            }
-            $multiplier = 1;
-            if ($return[0] === '-') {
-                $multiplier = -1;
-                $return = substr($return, 1);
-            }
-            if (!ctype_digit($return)) {
-                throw new RuntimeException('Cannot have non-digit values in integer number: ' . $return);
-            }
-            $return = $multiplier * ((int)$return);
-            $pos += $digits + 1;
-        } else {
-            $digits = strpos($data, ':', $pos) - $pos;
-            $len = (int)substr($data, $pos, $digits);
-            $pos += ($digits + 1);
-            $return = substr($data, $pos, $len);
-            $pos += $len;
-        }
-        if ($start_decode) {
-            if ($pos !== strlen($data)) {
-                throw new RuntimeException('Could not fully decode bencode string');
-            }
-        }
-        return $return;
-    }
-    /**
-     * @param mixed $data
-     * @return string
-     */
-    public static function encode($data)
-    {
-        if (is_array($data)) {
-            $return = '';
-            $check = -1;
-            $list = true;
-            foreach ($data as $key => $value) {
-                if ($key !== ++$check) {
-                    $list = false;
-                    break;
-                }
-            }
-            if ($list) {
-                $return .= 'l';
-                foreach ($data as $value) {
-                    $return .= self::encode($value);
-                }
-            } else {
-                $return .= 'd';
-                foreach ($data as $key => $value) {
-                    $return .= self::encode(strval($key));
-                    $return .= self::encode($value);
-                }
-            }
-            $return .= 'e';
-        } elseif (is_integer($data)) {
-            $return = 'i' . $data . 'e';
-        } else {
-            $return = strlen($data) . ':' . $data;
-        }
-        return $return;
-    }
-    /**
-     * Given a path to a file, decode the contents of it
-     *
-     * @param string $path
-     * @return mixed
-     */
-    public static function load($path)
-    {
-        if (is_file($path)) {
-            return self::decode(file_get_contents($path));
-        }
-        return null;
-    }
-    /**
-     * Given a path for a file, encode the contents of it
-     *
-     * @param string $path
-     * @param $data
-     * @return mixed
-     */
-    public static function dump($path, $data)
-    {
-        return file_put_contents($path, self::encode($data));
-    }
-}