From 26f5bd697663a0b44d42d19b6fb42298944d8d01 Mon Sep 17 00:00:00 2001
From: Bluzume <39113159+KuromeSan@users.noreply.github.com>
Date: Thu, 13 Feb 2020 23:06:09 +1300
Subject: [PATCH] Add files via upload

---
 E-Tamago/foobar/tamagologin.php  |  97 ++++++++++++++++++++++++++++
 E-Tamago/foobar/tamagologout.php | 105 +++++++++++++++++++++++++++++++
 2 files changed, 202 insertions(+)
 create mode 100644 E-Tamago/foobar/tamagologin.php
 create mode 100644 E-Tamago/foobar/tamagologout.php

diff --git a/E-Tamago/foobar/tamagologin.php b/E-Tamago/foobar/tamagologin.php
new file mode 100644
index 0000000..43ac12c
--- /dev/null
+++ b/E-Tamago/foobar/tamagologin.php
@@ -0,0 +1,97 @@
+<?php
+
+function check(string $code, $bitPos)
+{
+	$checksum = 0;
+	intval($code[5]);
+
+	for($i=0; $i<strlen($code); $i++)
+	{
+		if($i == $bitPos)
+		{
+			continue;
+		}
+		$checksum += intval($code[$i]);
+	}
+	return $checksum % 10;
+}
+
+function verify_code(string $code)
+{
+	$type = intval($code[5]);
+	
+	$checkBit = 0;
+	$checkBitPos = 0;
+	
+	switch($type)
+	{
+		case 0:
+		case 1:
+			$checkBitPos = 7;
+			break;
+		case 2:
+		case 3:
+			$checkBitPos = 7;
+			break;
+		case 4:
+		case 5:
+			$checkBitPos = 4;
+			break;
+		case 6:
+		case 7:
+			$checkBitPos = 11;
+			break;
+		case 8:
+		case 9:
+			$checkBitPos = 1;
+			break;
+	}
+	
+	$checkBit = intval($code[$checkBitPos]);
+	$calcBit = check($code,$checkBitPos);
+	
+	if($checkBit == $calcBit)
+	{
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+function fail()
+{
+	print("mch=00");
+	exit();	
+}
+
+//main process
+
+header("Content-Type: www-form-urlencoded");
+session_start(); 
+
+if(!isset($_POST["tapa"]))
+{
+	fail();
+}
+
+$loginCode = $_POST["tapa"];
+
+if(strlen($loginCode) != 14)
+{
+	fail();
+}
+
+$_SESSION["loginCode"] = $loginCode;
+$isValid = verify_code($loginCode);
+
+if($isValid)
+{
+	print("mch=01&wrk=21&par=50&acd=6&npa=72&mde=1&xda=81&dte=68721579380456");
+}
+else
+{
+	fail();
+}
+?>
diff --git a/E-Tamago/foobar/tamagologout.php b/E-Tamago/foobar/tamagologout.php
new file mode 100644
index 0000000..5856cd3
--- /dev/null
+++ b/E-Tamago/foobar/tamagologout.php
@@ -0,0 +1,105 @@
+<?php
+
+function check(string $code, $bitPos)
+{
+	$checksum = 0;
+	intval($code[5]);
+
+	for($i=0; $i<strlen($code); $i++)
+	{
+		if($i == $bitPos)
+		{
+			continue;
+		}
+		$checksum += intval($code[$i]);
+	}
+	return $checksum % 10;
+}
+
+function fail()
+{
+	echo("tapa=00000000000000");
+	exit();
+}
+
+header("Content-Type: www-form-urlencoded");
+session_start(); 
+
+if(!isset($_SESSION["loginCode"]))
+{
+	fail();
+}
+
+$code = $_SESSION["loginCode"];
+
+
+if(isset($_POST["mde"]) and isset($_POST["npa"]))
+{
+	$mode = strval($_POST["mde"]);
+	$id = strval($_POST["npa"]);
+	
+	//input validaition:
+	
+	if(strlen($id) > 3)
+	{
+		fail();
+	}
+	else if(strlen($mode) > 1)
+	{
+		fail();
+	}
+	
+	// processing 
+	
+	while(strlen($id) < 3)
+	{
+		$id = "0".$id;
+	}
+	$type = intval($code[5]);
+	
+	switch($type)
+	{
+		case 0:
+		case 1:
+			$code[8] = $mode;
+			$code[0] = $id[0];
+			$code[13] = $id[1];
+			$code[11] = $id[3];
+			$code[7] = check($code,7);
+			break;
+		case 2:
+		case 3:
+			$code[1] = $mode;
+			$code[2] = $id[0];
+			$code[8] = $id[1];
+			$code[13] = $id[2];
+			$code[7] = check($code,7);
+			break;
+		case 4:
+		case 5:
+			$code[10] = $mode;
+			$code[11] = $id[0];
+			$code[7] = $id[1];
+			$code[3] = $id[2];
+			$code[4] = check($code,4);
+			break;
+		case 6:
+		case 7:
+			$code[13] = $mode;
+			$code[12] = $id[0];
+			$code[2] = $id[1];
+			$code[1] = $id[2];
+			$code[11] = check($code,11);
+			break;
+		case 8:
+		case 9:
+			$code[10] = $mode;
+			$code[8] = $id[0];
+			$code[4] = $id[1];
+			$code[2] = $id[2];
+			$code[1] = check($code,1);
+			break;
+	}
+	echo("tapa=".$code);
+}
+?>
\ No newline at end of file