first commit

Day1 Web1/class.php

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+<?php
+error_reporting(0);
+$dbaddr = "localhost";
+$dbuser = "root";
+$dbpass = "";
+$dbname = "dropbox";
+$db = new mysqli($dbaddr, $dbuser, $dbpass, $dbname);
+
+class User {
+    public $db;
+
+    public function __construct() {
+        global $db;
+        $this->db = $db;
+    }
+
+    public function user_exist($username) {
+        $stmt = $this->db->prepare("SELECT `username` FROM `users` WHERE `username` = ? LIMIT 1;");
+        $stmt->bind_param("s", $username);
+        $stmt->execute();
+        $stmt->store_result();
+        $count = $stmt->num_rows;
+        if ($count === 0) {
+            return false;
+        }
+        return true;
+    }
+
+    public function add_user($username, $password) {
+        if ($this->user_exist($username)) {
+            return false;
+        }
+        $password = sha1($password . "SiAchGHmFx");
+        $stmt = $this->db->prepare("INSERT INTO `users` (`id`, `username`, `password`) VALUES (NULL, ?, ?);");
+        $stmt->bind_param("ss", $username, $password);
+        $stmt->execute();
+        return true;
+    }
+
+    public function verify_user($username, $password) {
+        if (!$this->user_exist($username)) {
+            return false;
+        }
+        $password = sha1($password . "SiAchGHmFx");
+        $stmt = $this->db->prepare("SELECT `password` FROM `users` WHERE `username` = ?;");
+        $stmt->bind_param("s", $username);
+        $stmt->execute();
+        $stmt->bind_result($expect);
+        $stmt->fetch();
+        if (isset($expect) && $expect === $password) {
+            return true;
+        } 
+        return false;
+    }
+
+    public function __destruct() {
+        $this->db->close();
+    }
+}
+
+class FileList {
+    private $files;
+    private $results;
+    private $funcs;
+
+    public function __construct($path) {
+        $this->files = array();
+        $this->results = array();
+        $this->funcs = array();
+        $filenames = scandir($path);
+
+        $key = array_search(".", $filenames);
+        unset($filenames[$key]);
+        $key = array_search("..", $filenames);
+        unset($filenames[$key]);
+
+        foreach ($filenames as $filename) {
+            $file = new File();
+            $file->open($path . $filename);
+            array_push($this->files, $file);
+            $this->results[$file->name()] = array();
+        }
+    }
+
+    public function __call($func, $args) {
+        array_push($this->funcs, $func);
+        foreach ($this->files as $file) {
+            $this->results[$file->name()][$func] = $file->$func();
+        }
+    }
+
+    public function __destruct() {
+        $table = '<div id="container" class="container"><div class="table-responsive"><table id="table" class="table table-bordered table-hover sm-font">';
+        $table .= '<thead><tr>';
+        foreach ($this->funcs as $func) {
+            $table .= '<th scope="col" class="text-center">' . htmlentities($func) . '</th>';
+        }
+        $table .= '<th scope="col" class="text-center">Opt</th>';
+        $table .= '</thead><tbody>';
+        foreach ($this->results as $filename => $result) {
+            $table .= '<tr>';
+            foreach ($result as $func => $value) {
+                $table .= '<td class="text-center">' . htmlentities($value) . '</td>';
+            }
+            $table .= '<td class="text-center" filename="' . htmlentities($filename) . '"><a href="#" class="download">下载</a> / <a href="#" class="delete">删除</a></td>';
+            $table .= '</tr>';
+        }
+        echo $table;
+    }
+}
+
+class File {
+    public $filename;
+
+    public function open($filename) {
+        $this->filename = $filename;
+        if (file_exists($filename) && !is_dir($filename)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public function name() {
+        return basename($this->filename);
+    }
+
+    public function size() {
+        $size = filesize($this->filename);
+        $units = array(' B', ' KB', ' MB', ' GB', ' TB'); 
+        for ($i = 0; $size >= 1024 && $i < 4; $i++) $size /= 1024; 
+        return round($size, 2).$units[$i];
+    }
+
+    public function detele() {
+        unlink($this->filename);
+    }
+
+    public function close() {
+        return file_get_contents($this->filename);
+    }
+}
+?>

Day1 Web1/delete.php

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+<?php
+session_start();
+if (!isset($_SESSION['login'])) {
+    header("Location: login.php");
+    die();
+}
+
+if (!isset($_POST['filename'])) {
+    die();
+}
+
+include "class.php";
+
+chdir($_SESSION['sandbox']);
+$file = new File();
+$filename = (string) $_POST['filename'];
+if (strlen($filename) < 40 && $file->open($filename)) {
+    $file->detele();
+    Header("Content-type: application/json");
+    $response = array("success" => true, "error" => "");
+    echo json_encode($response);
+} else {
+    Header("Content-type: application/json");
+    $response = array("success" => false, "error" => "File not exist");
+    echo json_encode($response);
+}
+?>

Day1 Web1/download.php

@@ -0,0 +1,25 @@
+<?php
+session_start();
+if (!isset($_SESSION['login'])) {
+    header("Location: login.php");
+    die();
+}
+
+if (!isset($_POST['filename'])) {
+    die();
+}
+
+include "class.php";
+ini_set("open_basedir", getcwd() . ":/etc:/tmp");
+
+chdir($_SESSION['sandbox']);
+$file = new File();
+$filename = (string) $_POST['filename'];
+if (strlen($filename) < 40 && $file->open($filename) && stristr($filename, "flag") === false) {
+    Header("Content-type: application/octet-stream");
+    Header("Content-Disposition: attachment; filename=" . basename($filename));
+    echo $file->close();
+} else {
+    echo "File not exist";
+}
+?>

Day1 Web1/index.php

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+<?php
+session_start();
+if (!isset($_SESSION['login'])) {
+    header("Location: login.php");
+    die();
+}
+?>
+
+
+<!DOCTYPE html>
+<html>
+
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+<title>网盘管理</title>
+
+<head>
+    <link href="static/css/bootstrap.min.css" rel="stylesheet">
+    <link href="static/css/panel.css" rel="stylesheet">
+    <script src="static/js/jquery.min.js"></script>
+    <script src="static/js/bootstrap.bundle.min.js"></script>
+    <script src="static/js/toast.js"></script>
+    <script src="static/js/panel.js"></script>
+</head>
+
+<body>
+    <nav aria-label="breadcrumb">
+    <ol class="breadcrumb">
+        <li class="breadcrumb-item active">管理面板</li>
+        <li class="breadcrumb-item active"><label for="fileInput" class="fileLabel">上传文件</label></li>
+        <li class="active ml-auto"><a href="#">你好 <?php echo $_SESSION['username']?></a></li>
+    </ol>
+</nav>
+<input type="file" id="fileInput" class="hidden">
+<div class="top" id="toast-container"></div>
+
+<?php
+include "class.php";
+
+$a = new FileList($_SESSION['sandbox']);
+$a->Name();
+$a->Size();
+?>

Day1 Web1/login.php

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+<?php
+session_start();
+if (isset($_SESSION['login'])) {
+    header("Location: index.php");
+    die();
+}
+?>
+
+<!doctype html>
+
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+  <meta name="description" content="">
+  <title>登录</title>
+
+  <!-- Bootstrap core CSS -->
+  <link href="static/css/bootstrap.min.css" rel="stylesheet">
+
+
+  <style>
+    .bd-placeholder-img {
+      font-size: 1.125rem;
+      text-anchor: middle;
+    }
+
+    @media (min-width: 768px) {
+      .bd-placeholder-img-lg {
+        font-size: 3.5rem;
+      }
+    }
+  </style>
+  <!-- Custom styles for this template -->
+  <link href="static/css/std.css" rel="stylesheet">
+</head>
+
+<body class="text-center">
+  <form class="form-signin" action="login.php" method="POST">
+    <h1 class="h3 mb-3 font-weight-normal">登录</h1>
+    <label for="username" class="sr-only">Username</label>
+    <input type="text" name="username" class="form-control" placeholder="Username" required autofocus>
+    <label for="password" class="sr-only">Password</label>
+    <input type="password" name="password" class="form-control" placeholder="Password" required>
+    <button class="btn btn-lg btn-primary btn-block" type="submit">提交</button>
+    <p class="mt-5 text-muted">还没有账号? <a href="register.php">注册</a></p>
+    <p class="text-muted">&copy; 2018-2019</p>  
+  </form>
+  <div class="top" id="toast-container"></div>
+</body>
+
+<script src="static/js/jquery.min.js"></script>
+<script src="static/js/bootstrap.bundle.min.js"></script>
+<script src="static/js/toast.js"></script>
+</html>
+
+
+<?php
+include "class.php";
+
+if (isset($_GET['register'])) {
+    echo "<script>toast('注册成功', 'info');</script>";
+}
+
+if (isset($_POST["username"]) && isset($_POST["password"])) {
+    $u = new User();
+    $username = (string) $_POST["username"];
+    $password = (string) $_POST["password"];
+    if (strlen($username) < 20 && $u->verify_user($username, $password)) {
+        $_SESSION['login'] = true;
+        $_SESSION['username'] = htmlentities($username);
+        $sandbox = "uploads/" . sha1($_SESSION['username'] . "sftUahRiTz") . "/";
+        if (!is_dir($sandbox)) {
+            mkdir($sandbox);
+        }
+        $_SESSION['sandbox'] = $sandbox;
+        header("Location: index.php");
+        die();
+    }
+    echo "<script>toast('账号或密码错误', 'warning');</script>";
+}
+?>