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location ^~ /book-c/

{

 proxy_pass http://akaedu.github.io/book/;

 proxy_redirect off;

 proxy_http_version 1.1;

 proxy_set_header Upgrade $http_upgrade;

 proxy_set_header Connection "upgrade";

}

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rewrite ^/book-(.*?)/  /index.php?m=Book&a=show&book=$1 last;

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class BookAction extends Action{

 private $uri;

 public function show(){

 $book = $_GET['book'];

 if (!method_exists($this,$book)){

  $this->error404();

 }

 try{

  $this->$book();

 }catch (Exception $e){

  $this->error404();

 }

 }

 /**

 * http://akaedu.github.io/book/

 */

 private function c(){

 $baseUrl = "http://akaedu.github.io/book/";

 $url = $baseUrl.$this->uri;

 echo file_get_contents($url);

 }

}

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location ~ .*\.(js|css)?$

{

 expires 12h;

}

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location ~ /book-.*?/

{

 rewrite ^/book-(.*?)/ /index.php?m=Book&a=show&book=$1 last;

}

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$ wget -S https://mengkang.net/book-c/styles.css -O /dev/null

--2018-02-01 13:13:36-- https://mengkang.net/book-c/styles.css

Resolving mengkang.net... 203.195.188.207

Connecting to mengkang.net|203.195.188.207|:443... connected.

HTTP request sent, awaiting response...

 HTTP/1.1 200 OK

 Server: nginx

 Date: Thu, 01 Feb 2018 05:13:38 GMT

 Content-Type: text/html; charset=UTF-8

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<?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;

 }

}