<?php
//require dirname(__FILE__).'/includes/common.php';
//echo dechex(mt_rand(0, 15)); //随机数0-15可以创建16进制 dechex(mt_rand)
//获取四位随机码
validateCode();
function validateCode()
{
session_start();
for ($i = 0; $i < 4; $i++) {
$randomNum = dechex(mt_rand(0, 15));
$_nmsg .= $randomNum;
}
$_SESSION['code'] = $_nmsg;
//echo $_SESSION['code'];
//echo $_nmsg; //变量不可以跨页面 但是session可以 利用超级全局变量
$_width = 75;
$_height = 25;
$_img = imagecreatetruecolor($_width, $_height);
//白色
$_white = imagecolorallocate($_img, 255, 255, 255);
//填充
imagefill($_img, 0, 0, $_white);
//黑色
$_black = imagecolorallocate($_img, 0, 0, 0);
//画一个黑色的边框
imagerectangle($_img, 0, 0, $_width - 1, $_height - 1, $_black);
//随机线条
for ($i = 0; $i < 6; $i++) {
$_randomColor = imagecolorallocate($_img, mt_rand(200, 255), mt_rand(200, 255), mt_rand(200, 255));
imageline($_img, mt_rand(0, $_width), mt_rand(0, $_height), mt_rand(0, $_width), mt_rand(0, $_height), $_randomColor);
function validateCode($string)
{
if (preg_match("/^[\\w]+\$/", $string)) {
return true;
} else {
return false;
}
}
function startsWith($haystack, $needle)
{
return $needle === "" || strrpos($haystack, $needle, -strlen($haystack)) !== FALSE;
}
if ($enabled) {
$inurl = $_SERVER["REQUEST_URI"];
$code = substr($inurl, strpos($inurl, "?") + 1);
if (validateCode($code)) {
$url = $owncloud_url . "/index.php/apps/shorten/code.php?code=" . $code;
ini_set('user_agent', 'ownCloud Downloader;');
$headers = get_headers($url);
foreach ($headers as $h) {
if (startsWith($h, "Location:")) {
header($h);
exit;
}
}
foreach ($headers as $h) {
header($h);
}
$f = fopen($url, 'r');
while (!feof($f)) {
if ($f) {
