<?php
class BookAction extends Action{
const BOOK_SAVE_DIR = "/data/book/";
private $uri;
private $baseUrl;
private $book;
private $bookname;
public function show(){
$book = $_GET['book'];
$this->book = $book;
$this->uri = str_replace("/book-{$book}/","",$_SERVER['REQUEST_URI']);
if (!method_exists($this,$book)){
$this->error404();
}
try{
$this->$book();
}catch (Exception $e){
$this->error404();
}
}
/**
* http://akaedu.github.io/book/
*/
private function c(){
$this->baseUrl = "http://akaedu.github.io/book/";
$url = $this->baseUrl.$this->uri;
$this->output($url);
}
private function output($url){
$ext = pathinfo($url,PATHINFO_EXTENSION);
if (!$ext) {
$url = $url."/index.html";
$ext = "html";
}
switch ($ext){
case "css":
header("Content-Type: text/css; charset=UTF-8");
break;
default:
header("Content-Type: text/html; charset=UTF-8");
break;
}
// 如果已经缓存
$filename = self::BOOK_SAVE_DIR.$this->book."/".str_replace($this->baseUrl,"",$url);
if (file_exists($filename)){
$data = file_get_contents($filename);
}else{
$data = file_get_contents($url);
$dir = dirname($filename);
if (!file_exists($dir)){
mkdir($dir,755,true);
}
file_put_contents($filename,$data);
}
// 增加原始版权说明
echo $data;
}
}
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