Add files via upload

Author: WheissCherry

api/link_generating.php

@@ -0,0 +1,74 @@
+<?php
+if ($_SERVER["REQUEST_METHOD"] == "POST") {
+	$req_url = $_POST["user_path_1"]??'';
+	if ($req_url) {
+		if (strlen($req_url)>500) {
+			die("Formatted url data's length has exceeded!");
+		}
+	} else {
+		die("Please input your formatted url data.");
+	}
+	$pattern4 = '/(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*)/';
+	$pattern3 = '/(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*)/';
+	$pattern2 = '/(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*?)\((([\w]{1,4})\-([\w]{1,4}))\)(.*)/';
+	$pattern1 = '/(.*?)\((([\w]{1,6})\-([\w]{1,6}))\)(.*)/';
+	if (preg_match($pattern4,$req_url,$match_arr)){//4阶循环
+		$letters1 = match_16_0($match_arr,2);
+		$letters2 = match_16_0($match_arr,6);
+		$letters3 = match_16_0($match_arr,10);
+		$letters4 = match_16_0($match_arr,14);
+		foreach ($letters1 as $letter1) {
+			foreach ($letters2 as $letter2) {
+				foreach ($letters3 as $letter3) {
+					foreach ($letters4 as $letter4) {
+						echo $match_arr[1].$letter1.$match_arr[5].$letter2.$match_arr[9].$letter3.$match_arr[13].$letter4.$match_arr[17].PHP_EOL;
+					}
+				}
+			}
+		}
+	} else if (preg_match($pattern3,$req_url,$match_arr)){//3阶循环
+		$letters1 = match_16_0($match_arr,2);
+		$letters2 = match_16_0($match_arr,6);
+		$letters3 = match_16_0($match_arr,10);
+		foreach ($letters1 as $letter1) {
+			foreach ($letters2 as $letter2) {
+				foreach ($letters3 as $letter3) {
+					echo $match_arr[1].$letter1.$match_arr[5].$letter2.$match_arr[9].$letter3.$match_arr[13].PHP_EOL;
+				}
+			}
+		}
+	} else if (preg_match($pattern2,$req_url,$match_arr)){//2阶循环
+		$letters1 = match_16_0($match_arr,2);
+		$letters2 = match_16_0($match_arr,6);
+		foreach ($letters1 as $letter1) {
+			foreach ($letters2 as $letter2) {
+				echo $match_arr[1].$letter1.$match_arr[5].$letter2.$match_arr[9].PHP_EOL;
+			}
+		}
+	} else if (preg_match($pattern1,$req_url,$match_arr)){//1阶循环
+		$letters1 = match_16_0($match_arr,2);
+		foreach ($letters1 as $letter1) {
+			echo $match_arr[1].$letter1.$match_arr[5].PHP_EOL;
+		}
+	}
+}
+exit;
+
+function match_16_0($match_arr,$subscript){
+	$pattern16 = '/(([\d])\-([^\d]))/';
+	$hexArray = array_map('dechex', range(0, 15));
+	$letters = preg_match($pattern16,$match_arr[$subscript])?$hexArray:range($match_arr[$subscript+1],$match_arr[$subscript+2]);
+	$pattern0 = '/((0[\d]+)\-(\d[\d]+))/';
+	if (preg_match($pattern0,$match_arr[2])){
+		$numDigits = strlen($match_arr[$subscript+2]);
+		$resultArray = [];
+		foreach ($letters as $letter) {
+			$letter0 = sprintf("%0{$numDigits}d", $letter);
+			$resultArray[] = $letter0;
+		}
+		return $resultArray;
+	} else {
+		return $letters;
+	}
+}
+?>