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add comment for utils.class.php and fixed some bugs

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This commit is contained in:
printempw 2016-01-17 11:35:12 +08:00
parent c1d92d3d2b
commit 59906c85d4
2 changed files with 55 additions and 15 deletions
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8
includes/user.class.php
View File

@ -3,7 +3,7 @@
* @Author: printempw
* @Date: 2016-01-16 23:01:33
* @Last Modified by: prpr
* @Last Modified time: 2016-01-17 10:10:23
* @Last Modified time: 2016-01-17 11:24:09
*/
class user {
@ -39,7 +39,11 @@ class user {
}
public function register($passwd, $ip) {
if (utils::insert([$this -> uname, $passwd, $ip])) {
if (utils::insert(array(
"uname" => $this -> uname,
"passwd" => $passwd,
"ip" => $ip
)) {
return true;
} else {
return false;

62
includes/utils.class.php
View File

@ -3,13 +3,18 @@
* @Author: printempw
* @Date: 2016-01-16 23:01:33
* @Last Modified by: prpr
* @Last Modified time: 2016-01-17 10:56:41
* @Last Modified time: 2016-01-17 11:31:17
*/
require "./config.php";
class utils {
private static $connection = null;
/**
* Connect to database
*
* @return null
*/
public static function connect() {
if (!self::$connection) {
if ($con = mysql_connect(DB_HOST, DB_USER, DB_PASSWD)) {
@ -22,39 +27,58 @@ class utils {
}
}
// use static function to replace raising a exception
/**
* Use static function to replace raising a exception
*
* @param {integer} errno
* @param {string} msg, message to show
* @return null
*/
public static function raise($errno = -1, $msg = "Error occured.") {
$exception['errno'] = $errno;
$exception['msg'] = $msg;
die(json_encode($exception));
}
/**
* Return array of rows which matches provided key adn value
*
* @param {string} key
* @param {string} value
* @return {array} row array returned by mysql_fetch_array()
*/
public static function select($key, $value) {
self::connect();
$query = mysql_query("SELECT * FROM users WHERE $key='$value'", self::$connection);
$query = self::query("SELECT * FROM users WHERE $key='$value'");
$row = mysql_fetch_array($query);
mysql_close(self::$connection);
return $row;
}
// @param $array[uname, passwd, ip]
/**
* Insert a record to database
*
* @param {array} array, [uname, passwd, ip]
* @return boolean
*/
public static function insert($array) {
$uname = $array[0];
$passwd = $array[1];
$ip = $array[2];
$uname = $array['uname'];
$passwd = $array['passwd'];
$ip = $array['ip'];
self::connect();
$query = mysql_query("INSERT INTO users (username, password, ip) VALUES ('$uname', '$passwd', '$ip')", self::$connection);
mysql_close(self::$connection);
$query = self::query("INSERT INTO users (username, password, ip) VALUES ('$uname', '$passwd', '$ip')");
return $query;
}
public static function update($uname, $key, $value) {
self::connect();
$query = self::query("UPDATE users SET $key='$value' WHERE username='$uname'");
mysql_close(self::$connection);
return $query;
}
/**
* Rename uploaded file
*
* @param {array} file, files uploaded via HTTP POST
* @return {string} hash, file's sha256 hash
*/
public static function upload($file) {
move_uploaded_file($file["tmp_name"], "./textures/tmp.png");
$hash = hash_file('sha256', "./textures/tmp.png");
@ -62,10 +86,22 @@ class utils {
return $hash;
}
/**
* Simple SQL injection protection
*
* @param {string} string, string to convert
* @return {string}
*/
public static function convertString($string) {
return stripslashes(trim($string));
}
/**
* Query with raw SQL statement
*
* @param {string} sql, raw SQL statement
* @return {boolean}
*/
private static function query($sql) {
self::connect();
$query = mysql_query($sql, self::$connection);