diff --git a/README.md b/README.md
index 67d27c9..0969629 100644
--- a/README.md
+++ b/README.md
@@ -9,22 +9,22 @@ Linux (or cygwin) with php & curl installed.
 
 ## 使用方法
 
-    chmod +x bpcs_uploader.php  
+    chmod +x bpcs_uploader.php
     ./bpcs_uploader.php
 
-由于VPS上安装的php可能存在于各种地方，因此运行很可能不正常。请以使用`which php`得到你的php绝对路径，修改bpcs_uploader.php的头一句#!后的路径。  
-如果你的php是为了网站环境安装的，那么很有可能你会得到下面这条错误消息：  
+由于VPS上安装的php可能存在于各种地方，因此运行很可能不正常。请以使用`which php`得到你的php绝对路径，修改bpcs_uploader.php的头一句#!后的路径。
+如果你的php是为了网站环境安装的，那么很有可能你会得到下面这条错误消息：
 
-> xxx() has been disabled for security reasons  
+> xxx() has been disabled for security reasons
 
-那么说明你的环境由于安全原因禁止了部分函数的执行。请看FAQs的1。请使用那条长长的命令代替./bpcs_uploader.php。eg：`php -d disable_functions -d safe_mode=Off -f bpcs_uploader.php quota`  
+那么说明你的环境由于安全原因禁止了部分函数的执行。请看FAQs的1。请使用那条长长的命令代替./bpcs_uploader.php。eg：`php -d disable_functions -d safe_mode=Off -f bpcs_uploader.php quota`
 
 ### 快速初始化
 
     ./bpcs_uploader.php quickinit
 
 敲下命令直接进入快速初始化流程，输入y，然后打开浏览器访问 https://openapi.baidu.com/device ，在“请输入设备上显示的用户授权码：”文本框中输入上面显示的授权码（这里是`12abcxyz`），并点击继续。
-看到网页上显示“请返回设备继续操作！”后，返回ssh上按下回车后，即完成了初始化配置。  
+看到网页上显示“请返回设备继续操作！”后，返回ssh上按下回车后，即完成了初始化配置。
 
 ### 初始化
 
@@ -32,82 +32,85 @@ Linux (or cygwin) with php & curl installed.
 
 敲下命令之后会进入初始化流程，这里分段详述设置方法。
 
-> Now start the initiation. If you have configured the uploader , it will be overwirte.   
+> Uploader initialization will be begin. If you have already configured
+> the uploader before, your old settings will be overwritten.
 > Continue? [y/N] y
 
-确认初始化。如果之前有初始化过，那么以前的配置将会被覆盖。 
- 
-> Now you have to enter your baidu PSC app key . You should know that it needs a manual acting.  
-> You can request for it via http://developer.baidu.com/dev#/create .  
-> Make sure you have the PCS app key . if you haven't , you can use the demo key by just hit Enter. 
-> So if you dont have the app secret , you have to re-init every month , for the access-token will expires every month.  
-> App KEY [uFBSHEwWE6DD94SQx9z77vgG] :  
+确认初始化。如果之前有初始化过，那么以前的配置将会被覆盖。
 
-第一步，输入App key。这里需要输入一个有PCS权限的API KEY，如果没有的话直接敲回车就好了，这里会默认使用内置的一组app key,app secret和app foloder name，所以只要敲下回车就能直接跳到第四步。如果你没有App secret（例如使用L6g70tBRRIXLsY0Z3HwKqlRE这个Key时），只能获取一个有效期为一个月的access token。如果有一个有PSC权限的API KEY和secret，那么就能获得一个有效期为10年的refresh token，以便长期使用。
+> Please enter your PSC App API Key. You can get this key by visiting
+> http://developer.baidu.com/dev#/create
+> If you already created an app, you can visit http://developer.baidu.com/console#/app and get it in your app's info.
+> If you don't want to bother creating an app, you can press Enter to use the demo API Key.
+> Doing so (without your own API Key/Secret) will cause the access-token expire every 30 days, and you'll have to
+> re-initialize when it expires.
+> App API KEY [uFBSHEwWE6DD94SQx9z77vgG] :
 
-> App key has been setted to uFBSHEwWE6DD94SQx9z77vgG .  
-> Now you have to enter your baidu PSC app secret. If you dont know the secret , keep it blank.  
-> App SECRET [] :  
+第一步，输入App key。这里需要输入一个有PCS权限的API KEY，如果没有的话直接敲回车就好了，这里会默认使用内置的一组app key,app secret和app folder name，所以只要敲下回车就能直接跳到第四步。如果你没有App secret（例如使用L6g70tBRRIXLsY0Z3HwKqlRE这个Key时），只能获取一个有效期为一个月的access token。如果有一个有PSC权限的API KEY和secret，那么就能获得一个有效期为10年的refresh token，以便长期使用。
+
+> App API Key has been set to uFBSHEwWE6DD94SQx9z77vgG .
+> Please enter your Baidu PSC App API Secret. If you have no idea what it is, keep it blank.
+> App API SECRET [] :
 
 第二步，输入App secret。如果输入了app secret，将会转到device code模式验证；或者直接输入回车使用oob模式验证。先直接回车：
 
-> Now you have to enter your app name. You can enter it later in the file [ /root/_bpcs_files_/config/appname ].  
-> * Why i have to enter app name ? see FAQs.  
-> If your app name have Chinese characters , please swith your client to the UTF-8 mode.  
-> Here are some chinese characters . Before you enter chinese characters , make sure you can read these characters.  
-> 这里是一些中文字符。   
-> If you cant read any chinese above , please press enter , and change it manually in the file [ /root/_bpcs_files_/config/appname ] .  
-> If you have Enter the key [L6g70tBRRIXLsY0Z3HwKqlRE] (by default) , just press Enter.  
-> App Name [pcstest_oauth] :   
-
-第三步，这里需要输入app floder name，也就是你申请API时填写的文件夹名字。详情见FAQ 2。因为是使用的默认的key，所以直接回车即可。
-
-> Now you have to get your oauth access_token by your own .  
-> Here is a reference document .  
-> http://developer.baidu.com/wiki/index.php?title=docs/pcs/guide/usage_example  
->   
-> A simple guide :   
-> 1.visit https://openapi.baidu.com/oauth/2.0/authorize?response_type=token&client_id=L6g70tBRRIXLsY0Z3HwKqlRE&redirect_uri=oob&scope=netdisk  
-> in your broswer.  
-> 2.when it redirected to a html page , copy the url to the notepad.  
-> 3.get the access_token from it , paste it and press Enter.  
-> access_token[] :   
-
-第四步，获取access token。在浏览器中打开上述URL（ https://openapi.baidu.com/oauth/2.0/authorize?response_type=token&client_id=L6g70tBRRIXLsY0Z3HwKqlRE&redirect_uri=oob&scope=netdisk ），进行授权。  
+> Please enter your app's folder name. You can choose to input this later in the file [ /root/_bpcs_files_/config/appname ].
+> ** Why do I have to enter the app's folder name? Please check the FAQs. **
+> If your app's name has Chinese characters, please ensure that your client supports UTF-8 encoding.
+> Below are some Chinese characters for testing. Please make sure that you can read them before you enter Chinese here.
+> 这里是一些中文字符。
+> If you can't read the characters above, please press Enter and change it manually within the file [ /root/_bpcs_files_/config/appname ].
+> If you have Enter the key [L6g70tBRRIXLsY0Z3HwKqlRE] (by default) , just press Enter.
+> App Name [pcstest_oauth] :
+
+第三步，这里需要输入app folder name，也就是你申请API时填写的文件夹名字。详情见FAQ 2。因为是使用的默认的key，所以直接回车即可。
+
+> In the next step, you'll have to grab the access_token generated by Baidu.
+> You can check out this link for more information on this procedure.
+> http://developer.baidu.com/wiki/index.php?title=docs/pcs/guide/usage_example
+>
+> Easy Guide:
+> 1. Visit https://openapi.baidu.com/oauth/2.0/authorize?response_type=token&client_id=$appkey&redirect_uri=oob&scope=netdisk
+> 2. After the page is being redirected (it should show something like OAuth 2.0), copy the current URL to your favorite text editor.
+> 3. Grab the access_token part, take only the part between "access_token=" and the next "&" symbol (without quotes).
+> 4. Copy it and paste here, then press Enter.
+> access_token[] :
+
+第四步，获取access token。在浏览器中打开上述URL（ https://openapi.baidu.com/oauth/2.0/authorize?response_type=token&client_id=L6g70tBRRIXLsY0Z3HwKqlRE&redirect_uri=oob&scope=netdisk ），进行授权。
 授权完毕后，将会跳到一个写着“百度 Oauth2.0”的页面。复制出其中的网页URL，找到access_token=和&之间的字符串，例如：
-`3.**05c2ea85d52c2***************a5.2592000.136***9032.3089166538-23**47`  
-将其复制到shell中粘贴并回车。使用这种方式初始化的用户，需要每月重新初始化。  
+`3.**05c2ea85d52c2***************a5.2592000.136***9032.3089166538-23**47`
+将其复制到shell中粘贴并回车。使用这种方式初始化的用户，需要每月重新初始化。
 
 如果第三步输入app secret的时候没有留空，将会得到下面的消息：
 
-> Now open your broswer and visit https://openapi.baidu.com/device .   
-> Copy or input 12abcxyz when it been asks.  
-> After granted the access to the application , be back and press Enter key .  
+> Launch your favorite web browser and visit https://openapi.baidu.com/device
+> Input 12abcxyz as the user code if asked.
+> After granting access to the application, come back here and press Enter to continue.
 
 来到这里，打开浏览器访问 https://openapi.baidu.com/device ，在“请输入设备上显示的用户授权码：”文本框中输入上面显示的授权码（这里是`12abcxyz`），并点击继续。
-看到网页上显示“请返回设备继续操作！”后，返回ssh上按下回车后，即可继续。  
+看到网页上显示“请返回设备继续操作！”后，返回ssh上按下回车后，即可继续。
 
-> curl -X GET -k -L "...."  
->   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current  
->                                  Dload  Upload   Total   Spent    Left  Speed  
->   0    62    0    62    0     0     40      0 --:--:--  0:00:01 --:--:--   235  
-> Success . Your Storage Status : 0.06G/115.00G (0.05%)  
-> Have fun !  
+> curl -X GET -k -L "...."
+>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
+>                                  Dload  Upload   Total   Spent    Left  Speed
+>   0    62    0    62    0     0     40      0 --:--:--  0:00:01 --:--:--   235
+> Access Granted. Your Storage Status: 0.06G/115.00G (0.05%)
+> Enjoy!
 
 你所看到的输出可能和这里给出的不一样，但是只要看到了存储空间的剩余量，和【Have fun !】提示，即说明成功初始化。
 
 ### 查询容量（配额）
 
-    ./bpcs_uploader.php quota 
+    ./bpcs_uploader.php quota
 
-结果：  
+结果：
 > Your Storage Status : 0.06G/115.00G (0.05%)
 
 ### 上传文件
 
     ./bpcs_uploader.php upload [path_local] [path_remote]
 
-路径格式：`foo/bar/file.ext`（路径中一定要包括文件名）  
+路径格式：`foo/bar/file.ext`（路径中一定要包括文件名）
 上传后，能在百度网盘/我的应用数据/应用名/foo/bar下找到一个叫file.ext的文件。
 
 ### 下载文件
@@ -126,10 +129,10 @@ Linux (or cygwin) with php & curl installed.
 
 ## FAQs
 
-1. 各种错误提示 
+1. 各种错误提示
 
-试试`php -d disable_functions -d safe_mode=Off -f bpcs_uploader.php`。 
+试试`php -d disable_functions -d safe_mode=Off -f bpcs_uploader.php`。
 
-2. 为什么要输入文件夹名？ 
+2. 为什么要输入文件夹名？
 
 因为百度PCS的权限被限制在了/apps/文件夹名/下。如果发现输入文件夹名后仍然无法上传文件，请通过网页版找到【我的应用数据】找到对应的文件夹名，写入/config/appname文件。上传文件的时候会自动帮您处理文件夹，无需手动写出完整路径。
diff --git a/_bpcs_files_/core.php b/_bpcs_files_/core.php
index 148c463..47c20c8 100644
--- a/_bpcs_files_/core.php
+++ b/_bpcs_files_/core.php
@@ -1,227 +1,228 @@
 <?php
-	//核心操作文件
-	function du_init($quickinit = false){
-		define('BPCSU_KEY','uFBSHEwWE6DD94SQx9z77vgG');
-		define('BPCSU_SEC','7w6wdSFsTk6Vv586r1W1ozHLoDGhXogD');
-		define('BPCSU_FNAME','bpcs_uploader');
-		if($quickinit){
-			//快速初始化
-			$appkey = BPCSU_KEY;
-			file_put_contents(CONFIG_DIR.'/appkey',$appkey);
-			$appsec = BPCSU_SEC;
-			file_put_contents(CONFIG_DIR.'/appsec',$appsec);
-			$appname = BPCSU_FNAME;
-			file_put_contents(CONFIG_DIR.'/appname',$appname);
-		}else{
-			//正常初始化
-			echo <<<EOF
-Now you have to enter your baidu PSC app key . You should know that it needs a manual acting.
-You can request for it via http://developer.baidu.com/dev#/create .
-Make sure you have the PCS app key . if you haven\'t , you can use the demo key by just hit Enter.
-So if you dont have the app secret , you have to re-init every month , for the access-token will expires every month.
+//核心操作文件
+function du_init($quickinit = false){
+  define('BPCSU_KEY','uFBSHEwWE6DD94SQx9z77vgG');
+  define('BPCSU_SEC','7w6wdSFsTk6Vv586r1W1ozHLoDGhXogD');
+  define('BPCSU_FNAME','bpcs_uploader');
+  if($quickinit){
+    //快速初始化
+    $appkey = BPCSU_KEY;
+    file_put_contents(CONFIG_DIR.'/appkey',$appkey);
+    $appsec = BPCSU_SEC;
+    file_put_contents(CONFIG_DIR.'/appsec',$appsec);
+    $appname = BPCSU_FNAME;
+    file_put_contents(CONFIG_DIR.'/appname',$appname);
+  }else{
+    //正常初始化
+    echo <<<EOF
+Please enter your PSC App API Key. You can get this key by visiting http://developer.baidu.com/dev#/create
+If you already created an app, you can visit http://developer.baidu.com/console#/app and get it in your app\'s info.
+If you don\'t want to bother creating an app, you can press Enter to use the demo API Key.
+Doing so (without your own API Key/Secret) will cause the access-token expire every 30 days, and you\'ll have to
+re-initialize when it expires.
 
 EOF;
-			echo 'App KEY ['.BPCSU_KEY.'] :';
-			$appkey = getline();
-			$appkey = ($appkey) ? $appkey : BPCSU_KEY;
-			file_put_contents(CONFIG_DIR.'/appkey',$appkey);
-			echon('App key has been setted to '.$appkey.' . ');
-			if($appkey == BPCSU_KEY){
-				echon('App secret have been setted by default.');
-				$appsec=BPCSU_SEC;
-			}else{
-				echo <<<EOF
-	Now you have to enter your baidu PSC app secret. If you dont know the secret , keep it blank.
+    echo 'App API KEY ['.BPCSU_KEY.'] :';
+    $appkey = getline();
+    $appkey = ($appkey) ? $appkey : BPCSU_KEY;
+    file_put_contents(CONFIG_DIR.'/appkey',$appkey);
+    echon('App API Key has been set to '.$appkey.' . ');
+    if($appkey == BPCSU_KEY){
+      echon('Demo key detected. Using default API Secret.');
+      $appsec=BPCSU_SEC;
+    }else{
+      echo <<<EOF
+  Please enter your Baidu PSC App API Secret. If you have no idea what it is, keep it blank.
 
-	EOF;
-				echo 'App SECRET [] :';
-				$appsec = getline();
-			}
-			file_put_contents(CONFIG_DIR.'/appsec',$appsec);
-			$prepathfile = CONFIG_DIR.'/appname';
-			if($appkey == BPCSU_KEY){
-				echon('App name has been setted by default.');
-				$appname = 'bpcs_uploader';
-			}else{
-				echo <<<EOF
-Now you have to enter your app floder name. You can enter it later in the file [ $prepathfile ].
-* Why i have to enter app floder name ? see FAQs.
-If your app name have Chinese characters , please swith your client to the UTF-8 mode.
-Here are some chinese characters . Before you enter chinese characters , make sure you can read these characters.
+EOF;
+      echo 'App API SECRET [] :';
+      $appsec = getline();
+    }
+    file_put_contents(CONFIG_DIR.'/appsec',$appsec);
+    $prepathfile = CONFIG_DIR.'/appname';
+    if($appkey == BPCSU_KEY){
+      echon('Demo key detected. Using default app name.');
+      $appname = 'bpcs_uploader';
+    }else{
+      echo <<<EOF
+Please enter your app\'s folder name. You can choose to input this later in the file [ $prepathfile ].
+** Why do I have to enter the app\'s folder name? Please check the FAQs. **
+If your app\'s name has Chinese characters, please ensure that your client supports UTF-8 encoding.
+Below are some Chinese characters for testing. Please make sure that you can read them before you enter Chinese here.
 这里是一些中文字符。
-If you cant read any chinese above , please press enter , and change it manually in the file [ $prepathfile ] .
+If you can\'t read the characters above, please press Enter and change it manually within the file [ $prepathfile ].
 
 EOF;
-				echo 'App Floder Name [] : ';
-				$appname = getline();
-			}
-			file_put_contents(CONFIG_DIR.'/appname',$appname);
-		}//end of 初始化配置
-		
-		if($appsec){
-			$tokens=du_oauth_device($appkey,$appsec);
-			$access_token = $tokens['access_token'];
-			$refresh_token = $tokens['refresh_token'];
-		}else{
-			$access_token = do_oauth_token($appkey);
-			$refresh_token = '';
-		}
-		file_put_contents(CONFIG_DIR.'/access_token',$access_token);
-		file_put_contents(CONFIG_DIR.'/refresh_token',$refresh_token);
-		
-		$quota = get_quota($access_token);
-		$u=$quota['used']/1024/1024/1024;$a=$quota['quota']/1024/1024/1024;
-		echon(sprintf("Success . Your Storage Status : %.2fG/%.2fG (%.2f%%)",$u,$a,$u/$a*100));
-		echon('Have fun !');
-	}
-	function du_oauth_device($appkey,$appsec){
-		$device_para = 'client_id='.$appkey.'&response_type=device_code&scope=basic,netdisk';
-		$device_json = do_api('https://openapi.baidu.com/oauth/2.0/device/code',$device_para);
-		$device_array = json_decode($device_json,1);
-		oaerr($device_array);
-		
-		echo <<<EOF
-Now open your broswer and visit $device_array[verification_url] . 
-Copy or input $device_array[user_code] when it been asks.
-After granted the access to the application , be back and press Enter key .
+      echo 'App\'s Folder Name [] : ';
+      $appname = getline();
+    }
+    file_put_contents(CONFIG_DIR.'/appname',$appname);
+  }//end of 初始化配置
+
+  if($appsec){
+    $tokens=du_oauth_device($appkey,$appsec);
+    $access_token = $tokens['access_token'];
+    $refresh_token = $tokens['refresh_token'];
+  }else{
+    $access_token = do_oauth_token($appkey);
+    $refresh_token = '';
+  }
+  file_put_contents(CONFIG_DIR.'/access_token',$access_token);
+  file_put_contents(CONFIG_DIR.'/refresh_token',$refresh_token);
+
+  $quota = get_quota($access_token);
+  $u=$quota['used']/1024/1024/1024;$a=$quota['quota']/1024/1024/1024;
+  echon(sprintf("Access Granted. Your Storage Status: %.2fG/%.2fG (%.2f%%)",$u,$a,$u/$a*100));
+  echon('Enjoy!');
+}
+function du_oauth_device($appkey,$appsec){
+  $device_para = 'client_id='.$appkey.'&response_type=device_code&scope=basic,netdisk';
+  $device_json = do_api('https://openapi.baidu.com/oauth/2.0/device/code',$device_para);
+  $device_array = json_decode($device_json,1);
+  oaerr($device_array);
+
+  echo <<<EOF
+Launch your favorite web browser and visit $device_array[verification_url]
+Input $device_array[user_code] as the user code if asked.
+After granting access to the application, come back here and press Enter to continue.
 
 EOF;
-		getline();
-		for(;;){
-			//一个死循环
-			$token_para='grant_type=device_token&code=' . $device_array['device_code'] . '&client_id=' . $appkey . '&client_secret=' . $appsec;
-			$token_json = do_api('https://openapi.baidu.com/oauth/2.0/token',$token_para);
-			$token_array = json_decode($token_json,1);
-			if(oaerr($token_array,0)){
-				break;
-			}else{
-				echon('Auth failed. please check the error message and try agian.');
-				echo <<<EOF
-Now open your broswer and visit $device_array[verification_url] . 
-Copy or input $device_array[user_code] when it been asks.
-After granted the access to the application , be back and press Y .
+  getline();
+  for(;;){
+    //一个死循环
+    $token_para='grant_type=device_token&code=' . $device_array['device_code'] . '&client_id=' . $appkey . '&client_secret=' . $appsec;
+    $token_json = do_api('https://openapi.baidu.com/oauth/2.0/token',$token_para);
+    $token_array = json_decode($token_json,1);
+    if(oaerr($token_array,0)){
+      break;
+    }else{
+      echon('Authentication failed. Please check the error message and try again.');
+      echo <<<EOF
+Launch your favorite web browser and visit $device_array[verification_url]
+Input $device_array[user_code] as the user code if asked.
+After granting access to the application, come back here and press Enter to continue.
 
 EOF;
-				continueornot();
-				continue;
-			}
-			break;
-		}
-		$access_token = $token_array['access_token'];
-		$refresh_token = $token_array['refresh_token'];
-		return array(
-			'access_token' => $access_token,
-			'refresh_token' => $refresh_token,
-		);
-	}
-	function do_oauth_token($appkey){
-		echo <<<EOF
-Now you have to get your oauth access_token by your own .
-Here is a reference document .
+      continueornot();
+      continue;
+    }
+    break;
+  }
+  $access_token = $token_array['access_token'];
+  $refresh_token = $token_array['refresh_token'];
+  return array(
+    'access_token' => $access_token,
+    'refresh_token' => $refresh_token,
+  );
+}
+function do_oauth_token($appkey){
+  echo <<<EOF
+In the next step, you\'ll have to grab the access_token generated by Baidu.
+You can check out this link for more information on this procedure.
 http://developer.baidu.com/wiki/index.php?title=docs/pcs/guide/usage_example
 
-A simple guide : 
-1.visit https://openapi.baidu.com/oauth/2.0/authorize?response_type=token&client_id=$appkey&redirect_uri=oob&scope=netdisk
-in your broswer.
-2.when it redirected to a html page , copy the url to the notepad.
-3.get the access_token from it , paste it and press Enter.
+Easy Guide:
+1. Visit https://openapi.baidu.com/oauth/2.0/authorize?response_type=token&client_id=$appkey&redirect_uri=oob&scope=netdisk
+2. After the page is being redirected (it should show something like OAuth 2.0), copy the current URL to your favorite text editor.
+3. Grab the access_token part, take only the part between \"access_token=\" and the next \"&\" symbol (without quotes).
+4. Copy it and paste here, then press Enter.
 
 EOF;
-		echo 'access_token[] : ';
-		$access_token = getline();
-		return $access_token;
-	}
-	function do_oauth_refresh($appkey,$appsec,$refresh_token){
-		$para = 'grant_type=refresh_token&refresh_token='.$refresh_token.'&client_id='.$appkey.'&client_secret='.$appsec;
-		$token_json = do_api('https://openapi.baidu.com/oauth/2.0/token',$para);
-		$token_array = json_decode($token_json,1);
-		$access_token = $token_array['access_token'];
-		$refresh_token = $token_array['refresh_token'];
-		return array(
-			'access_token' => $access_token,
-			'refresh_token' => $refresh_token,
-		);
-	}
-	function get_quota($access_token){
-		$quota=do_api('https://pcs.baidu.com/rest/2.0/pcs/quota',"method=info&access_token=".$access_token,'GET');
-		$quota=json_decode($quota,1);
-		apierr($quota);
-		return $quota;
-	}
-	function upload_file($access_token,$path,$localfile,$ondup='newcopy'){
-		$path = getpath($path);
-		$url = "https://c.pcs.baidu.com/rest/2.0/pcs/file?method=upload&access_token=$access_token&path=$path&ondup=$ondup";
-		$add = "--form file=@$localfile";
-		$cmd = "curl -X POST -k -L $add \"$url\"";
-		$cmd = cmd($cmd);
-		$cmd = json_decode($cmd,1);
-		apierr($cmd);
-		return $cmd;
-	}
-	function delete_file($access_token,$path){
-		$path = getpath($path);
-		$dele=do_api('https://pcs.baidu.com/rest/2.0/pcs/file',"method=delete&access_token=".$access_token.'&path='.$path,'GET');
-		$dele=json_decode($dele,1);
-		apierr($dele);
-		return $dele;
-	}
-	function fetch_file($access_token,$path,$url){
-		$path = getpath($path);
-		$fetch=do_api('https://pcs.baidu.com/rest/2.0/pcs/services/cloud_dl',"method=add_task&access_token=".$access_token.'&save_path='.$path.'&source_url='.$url,'GET');
-		$fetch=json_decode($fetch,1);
-		apierr($fetch);
-		return $fetch;
-	}
-	//分片上传
-	function super_file($access_token,$path,$localfile,$ondup='newcopy',$sbyte=1073741824,$temp_dir='/tmp/'){
-		//调用split命令进行切割
-		//split -b200 --verbose rubygems-1.8.25.zip rg/rg1
-		if(filesize($localfile)<=$sbyte){
-			echon('The file is not as big as it need to be created by superfile.');
-			upload_file($access_token,$path,$localfile,$ondup);	//直接上传
-		}
-		$tempfdir = rtrim($temp_dir,'/').'/'.uniqid('bpcs_to_upload_');
-		if(!mkdir($tempfdir,0700,true)){
-			echon('Cannot create temp dir:'.$tempfdir);
-			die(9009);
-		}
-		$splitcmd = "split -b{$sbyte} $localfile $tempfdir/bpcs_toupload_";
-		$splitresult = cmd($splitcmd);
-		if(trim($splitresult)){
-			echon('Split quit with an message:'.$splitresult);
-		}
-		//遍历临时文件目录
-		$tempfiles = glob($tempfdir.'/bpcs_toupload_*');
-		if(count($tempfiles)<1){
-			//没有生成文件
-			echon('There are no files to upload.');
-			die(9010);
-		}elseif(count($tempfiles)==1){
-			//只有一个文件
-			unlink($tempfiles[0]);	//删除它
-			echon('The file is not as big as it need to be created by superfile.');
-			upload_file($access_token,$path,$localfile,$ondup);	//直接上传
-			return;
-		}
-		//开始上传进程
-		$block_list = array();
-		$count = 0;
-		foreach($tempfiles as $tempfile){
-			//上传临时文件，上传API与上传普通文件无异，只是多一个参数type=tmpfile，取消了其它几个参数。此处将“&type=tmpfile”作为ondup传递，将参数带在请求尾部。
-			echon('Uploading '.($count+1).' out of '.count($tempfiles).' file blocks ... ');
-			$count++;
-			$upload_res = upload_file($access_token,'',$tempfile,$ondup.'&type=tmpfile');
-			$block_list[] = $upload_res['md5'];
-			//删除临时文件
-			unlink($tempfile);
-		}
-		//删除临时文件夹
-		rmdir($tempfdir);
-		//准备提交API
-		$block_list = json_encode($block_list);
-		$param = '{"block_list":'.$block_list.'}';
-		$param = 'param='.urlencode($param);
-		$path = getpath($path);
-		$url = "https://pcs.baidu.com/rest/2.0/file?method=createsuperfile&path={$path}&access_token={$access_token}";
-		$res = do_api($url,$param);
-	}
\ No newline at end of file
+  echo 'access_token[] : ';
+  $access_token = getline();
+  return $access_token;
+}
+function do_oauth_refresh($appkey,$appsec,$refresh_token){
+  $para = 'grant_type=refresh_token&refresh_token='.$refresh_token.'&client_id='.$appkey.'&client_secret='.$appsec;
+  $token_json = do_api('https://openapi.baidu.com/oauth/2.0/token',$para);
+  $token_array = json_decode($token_json,1);
+  $access_token = $token_array['access_token'];
+  $refresh_token = $token_array['refresh_token'];
+  return array(
+    'access_token' => $access_token,
+    'refresh_token' => $refresh_token,
+  );
+}
+function get_quota($access_token){
+  $quota=do_api('https://pcs.baidu.com/rest/2.0/pcs/quota',"method=info&access_token=".$access_token,'GET');
+  $quota=json_decode($quota,1);
+  apierr($quota);
+  return $quota;
+}
+function upload_file($access_token,$path,$localfile,$ondup='newcopy'){
+  $path = getpath($path);
+  $url = "https://c.pcs.baidu.com/rest/2.0/pcs/file?method=upload&access_token=$access_token&path=$path&ondup=$ondup";
+  $add = "--form file=@$localfile";
+  $cmd = "curl -X POST -k -L $add \"$url\"";
+  $cmd = cmd($cmd);
+  $cmd = json_decode($cmd,1);
+  apierr($cmd);
+  return $cmd;
+}
+function delete_file($access_token,$path){
+  $path = getpath($path);
+  $dele=do_api('https://pcs.baidu.com/rest/2.0/pcs/file',"method=delete&access_token=".$access_token.'&path='.$path,'GET');
+  $dele=json_decode($dele,1);
+  apierr($dele);
+  return $dele;
+}
+function fetch_file($access_token,$path,$url){
+  $path = getpath($path);
+  $fetch=do_api('https://pcs.baidu.com/rest/2.0/pcs/services/cloud_dl',"method=add_task&access_token=".$access_token.'&save_path='.$path.'&source_url='.$url,'GET');
+  $fetch=json_decode($fetch,1);
+  apierr($fetch);
+  return $fetch;
+}
+//分片上传
+function super_file($access_token,$path,$localfile,$ondup='newcopy',$sbyte=1073741824,$temp_dir='/tmp/'){
+  //调用split命令进行切割
+  //split -b200 --verbose rubygems-1.8.25.zip rg/rg1
+  if(filesize($localfile)<=$sbyte){
+    echon('The file isn\'t big enough to split up. Proceed to upload normally.');
+    upload_file($access_token,$path,$localfile,$ondup);	//直接上传
+  }
+  $tempfdir = rtrim($temp_dir,'/').'/'.uniqid('bpcs_to_upload_');
+  if(!mkdir($tempfdir,0700,true)){
+    echon('Cannot create temp dir:'.$tempfdir);
+    die(9009);
+  }
+  $splitcmd = "split -b{$sbyte} $localfile $tempfdir/bpcs_toupload_";
+  $splitresult = cmd($splitcmd);
+  if(trim($splitresult)){
+    echon('Split exited with message:'.$splitresult);
+  }
+  //遍历临时文件目录
+  $tempfiles = glob($tempfdir.'/bpcs_toupload_*');
+  if(count($tempfiles)<1){
+    //没有生成文件
+    echon('There are no files to be upload.');
+    die(9010);
+  }elseif(count($tempfiles)==1){
+    //只有一个文件
+    unlink($tempfiles[0]);	//删除它
+    echon('The file isn\'t big enough to split up. Proceed to upload normally.');
+    upload_file($access_token,$path,$localfile,$ondup);	//直接上传
+    return;
+  }
+  //开始上传进程
+  $block_list = array();
+  $count = 0;
+  foreach($tempfiles as $tempfile){
+    //上传临时文件，上传API与上传普通文件无异，只是多一个参数type=tmpfile，取消了其它几个参数。此处将“&type=tmpfile”作为ondup传递，将参数带在请求尾部。
+    echon('Uploading file in pieces, '.($count+1).' out of '.count($tempfiles).' parts... ');
+    $count++;
+    $upload_res = upload_file($access_token,'',$tempfile,$ondup.'&type=tmpfile');
+    $block_list[] = $upload_res['md5'];
+    //删除临时文件
+    unlink($tempfile);
+  }
+  //删除临时文件夹
+  rmdir($tempfdir);
+  //准备提交API
+  $block_list = json_encode($block_list);
+  $param = '{"block_list":'.$block_list.'}';
+  $param = 'param='.urlencode($param);
+  $path = getpath($path);
+  $url = "https://pcs.baidu.com/rest/2.0/file?method=createsuperfile&path={$path}&access_token={$access_token}";
+  $res = do_api($url,$param);
+}
diff --git a/bpcs_uploader.php b/bpcs_uploader.php
index fac7c2e..cc189d9 100644
--- a/bpcs_uploader.php
+++ b/bpcs_uploader.php
@@ -1,116 +1,116 @@
-#!/usr/bin/php -d disable_functions -d safe_mode=Off 
+#!/usr/bin/php -d disable_functions -d safe_mode=Off
 <?php
-	/*
-		百度PCS上传php脚本 by oott123
-		http://best33.com
-	*/
-	error_reporting(E_ALL);
-	if(!isset($_SERVER)){
-		die('this script can\'t run from the broswer.');
-	}
-	//设置项目
-	define('FILES_DIR',dirname(__FILE__).'/_bpcs_files_');	//设置目录，尾部不需要/
-	define('CONFIG_DIR',FILES_DIR.'/config');	//配置目录
-	//函数文件
-	include(FILES_DIR.'/common.inc.php');
-	include(FILES_DIR.'/core.php');
-	//欢迎信息
-	echo <<<EOF
+  /*
+    百度PCS上传php脚本 by oott123
+    http://best33.com
+   */
+error_reporting(E_ALL);
+if(!isset($_SERVER)){
+  die('This script cannot be executed within web browser.');
+}
+//设置项目
+define('FILES_DIR',dirname(__FILE__).'/_bpcs_files_');	//设置目录，尾部不需要/
+define('CONFIG_DIR',FILES_DIR.'/config');	//配置目录
+//函数文件
+include(FILES_DIR.'/common.inc.php');
+include(FILES_DIR.'/core.php');
+//欢迎信息
+echo <<<EOF
 ===========================Baidu PCS Uploader===========================
 usage : $argv[0] init|quickinit|quota
 usage : $argv[0] upload|download path_local path_remote
 usage : $argv[0] delete path_remote
-usage : $argv[0] uploadbig path_local path_remote [slice_size(def:1073741824)] [temp_dir(def:/tmp/)]
+usage : $argv[0] uploadbig path_local path_remote [slice_size(default:1073741824)] [temp_dir(def:/tmp/)]
 usage : $argv[0] fetch path_remote path_to_fetch
 ========================================================================
 
 EOF;
-	if(!is_dir(CONFIG_DIR)){
-		mkdir(CONFIG_DIR);
-	}
-	if(!is_file(CONFIG_DIR.'/config.lock') || $argv[1] == 'init' || $argv[1] == 'quickinit'){
-		//进行初始化
-		echon('Now start the initiation. If you have configured the uploader , it will be overwirte. ');
-		continueornot();
-		du_init($argv[1] == 'quickinit');
-		file_put_contents(CONFIG_DIR.'/config.lock',time());
-		die();
-	}
-	$access_token = file_get_contents(CONFIG_DIR.'/access_token');
-	$refresh_token = file_get_contents(CONFIG_DIR.'/refresh_token');
-	
-	if($refresh_token){
-		//若存在refresh token，则刷新它。
-		$token_array=do_oauth_refresh(file_get_contents(CONFIG_DIR.'/appkey') , file_get_contents(CONFIG_DIR.'/appsec') , file_get_contents(CONFIG_DIR.'/refresh_token'));
-		if($token_array['access_token'] && $token_array['refresh_token']){
-			//防止获取不到token而自杀的行为
-			$access_token = $token_array['access_token'];
-			$refresh_token = $token_array['refresh_token'];
-			file_put_contents(CONFIG_DIR.'/access_token',$access_token);
-			file_put_contents(CONFIG_DIR.'/refresh_token',$refresh_token);
-		}
-	}
-	
-	switch($argv[1]){
-		case 'quota':
-			//quota - 获取空间
-			$quota = get_quota($access_token);
-			$u=$quota['used']/1024/1024/1024;$a=$quota['quota']/1024/1024/1024;
-			echon(sprintf("Your Storage Status : %.2fG/%.2fG (%.2f%%)",$u,$a,$u/$a*100));
-		break;
-		case 'upload':
-			//upload - 上传文件
-			if(count($argv)<3){
-				echon("Parameters unmatched.");
-				die();
-			}
-			$res=upload_file($access_token,$argv[3],$argv[2]);
-			echon(sprintf("File %s uploaded.\nSize:%.3fK MD5 Sum:%s",$res['path'],$res['size']/1024,$res['md5']));
-		break;
-		case 'download':
-			//download - 下载文件
-			if(count($argv)<3){
-				echon("Parameters unmatched.");
-				die();
-			}
-			$path='/apps/'.urlencode(file_get_contents(CONFIG_DIR.'/appname').'/'.$argv[3]);
-			$cmd = 'wget --no-check-certificate -O "'.$argv[2].' " "https://d.pcs.baidu.com/rest/2.0/pcs/file?method=download&access_token='.$access_token.'&path='.$path.'"';
-			cmd($cmd);
-		break;
-		case 'delete':
-			//delete - 删除文件
-			if(count($argv)<2){
-				echon("Parameters unmatched.");
-				die();
-			}
-			delete_file($access_token,$argv[2]);
-			echon('Deleted.');
-		break;
-		case 'fetch':
-			//fetch - 离线下载
-			//好像需要一定的权限，无法使用。
-			if(count($argv)<3){
-				echon("Parameters unmatched.");
-				die();
-			}
-			fetch_file($access_token,$argv[2],$argv[3]);
-		break;
-		case 'uploadbig':
-			//uploadbig - 大文件上传
-			switch(count($argv)){
-				case 0:
-				case 1:
-				case 2:
-				case 3:	//参数数目不够
-					echon('Parameters unmatched.');
-					die(9099);
-				case 4:	//设置默认值（单个文件大小->1G）
-					$argv[4] = 1073741824;
-					//因为需要继续下面的操作所以这里没有break
-				case 5:	//设置默认值（临时文件目录->/tmp/）
-					$argv[5] = '/tmp/';
-					//因为需要继续下面的操作所以这里没有break
-				default:	//开始上传操作
-					super_file($access_token,$argv[3],$argv[2],'newcopy',$argv[4],$argv[5]);
-			}
-	}
\ No newline at end of file
+if(!is_dir(CONFIG_DIR)){
+  mkdir(CONFIG_DIR);
+}
+if(!is_file(CONFIG_DIR.'/config.lock') || $argv[1] == 'init' || $argv[1] == 'quickinit'){
+  //进行初始化
+  echon('Uploader initialization will be begin. If you have already configured the uploader before, your old settings will be overwritten.');
+  continueornot();
+  du_init($argv[1] == 'quickinit');
+  file_put_contents(CONFIG_DIR.'/config.lock',time());
+  die();
+}
+$access_token = file_get_contents(CONFIG_DIR.'/access_token');
+$refresh_token = file_get_contents(CONFIG_DIR.'/refresh_token');
+
+if($refresh_token){
+  //若存在refresh token，则刷新它。
+  $token_array=do_oauth_refresh(file_get_contents(CONFIG_DIR.'/appkey') , file_get_contents(CONFIG_DIR.'/appsec') , file_get_contents(CONFIG_DIR.'/refresh_token'));
+  if($token_array['access_token'] && $token_array['refresh_token']){
+    //防止获取不到token而自杀的行为
+    $access_token = $token_array['access_token'];
+    $refresh_token = $token_array['refresh_token'];
+    file_put_contents(CONFIG_DIR.'/access_token',$access_token);
+    file_put_contents(CONFIG_DIR.'/refresh_token',$refresh_token);
+  }
+}
+
+switch($argv[1]){
+case 'quota':
+  //quota - 获取空间
+  $quota = get_quota($access_token);
+  $u=$quota['used']/1024/1024/1024;$a=$quota['quota']/1024/1024/1024;
+  echon(sprintf("Your Storage Status: %.2fG/%.2fG (%.2f%%)",$u,$a,$u/$a*100));
+  break;
+case 'upload':
+  //upload - 上传文件
+  if(count($argv)<3){
+    echon("Missing parameters. Please check again.");
+    die();
+  }
+  $res=upload_file($access_token,$argv[3],$argv[2]);
+  echon(sprintf("File %s uploaded.\nSize:%.3fK MD5 Sum:%s",$res['path'],$res['size']/1024,$res['md5']));
+  break;
+case 'download':
+  //download - 下载文件
+  if(count($argv)<3){
+    echon("Missing parameters. Please check again.");
+    die();
+  }
+  $path='/apps/'.urlencode(file_get_contents(CONFIG_DIR.'/appname').'/'.$argv[3]);
+  $cmd = 'wget --no-check-certificate -O "'.$argv[2].' " "https://d.pcs.baidu.com/rest/2.0/pcs/file?method=download&access_token='.$access_token.'&path='.$path.'"';
+  cmd($cmd);
+  break;
+case 'delete':
+  //delete - 删除文件
+  if(count($argv)<2){
+    echon("Missing parameters. Please check again.");
+    die();
+  }
+  delete_file($access_token,$argv[2]);
+  echon('File deleted.');
+  break;
+case 'fetch':
+  //fetch - 离线下载
+  //好像需要一定的权限，无法使用。
+  if(count($argv)<3){
+    echon("Missing parameters. Please check again.");
+    die();
+  }
+  fetch_file($access_token,$argv[2],$argv[3]);
+  break;
+case 'uploadbig':
+  //uploadbig - 大文件上传
+  switch(count($argv)){
+  case 0:
+  case 1:
+  case 2:
+  case 3:	//参数数目不够
+    echon('Missing parameters. Please check again.');
+    die(9099);
+  case 4:	//设置默认值（单个文件大小->1G）
+    $argv[4] = 1073741824;
+    //因为需要继续下面的操作所以这里没有break
+  case 5:	//设置默认值（临时文件目录->/tmp/）
+    $argv[5] = '/tmp/';
+    //因为需要继续下面的操作所以这里没有break
+  default:	//开始上传操作
+    super_file($access_token,$argv[3],$argv[2],'newcopy',$argv[4],$argv[5]);
+  }
+}