forked from banditsmile/baidu_pcs_ui
/
controller.php
277 lines (251 loc) · 7.99 KB
/
controller.php
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<?php
/**
* Created by PhpStorm.
* User: xubandit
* Date: 15/6/30
* Time: 下午11:11
*/
class base_controller{
public function __construct(){
}
}
class baidu_pcs_controller extends base_controller{
var $baidu_pcs;
var $default_download_path = DOWN_PATH;//默认下载目录
var $down_status=array();
var $down_status_file = BASE_PATH.'/data/download.php';
public function __construct(){
parent::__construct();
$this->baidu_pcs = baidu_pcs::instance();
}
public function index(){
return $this->render('list_body');
}
public function get_list(){
$path = get_post('path');
$path = rtrim($path,'/');
$result = $this->baidu_pcs->get_list($path);
$list = array();
foreach($result as $item){
$item['name'] = str_replace($path.'/','',$item['name']);
$item['size'] = human_filesize($item['size'],0);
$list[]=$item;
}
unset($result);
if($path !='/' && $path !=''){
$parent_dir = array('name'=>'..','size'=>'0B','date'=>max(array_column($list,'date')),'type'=>'d');
array_unshift($list,$parent_dir);
}
return include BASE_PATH.'/templates/list.php';
}
public function download(){
$file = rtrim(get_post('file'),'/ ');
$path = trim(get_post('path'));
//检查网盘是否存在该文件
$file_info = $this->baidu_pcs->meta($file);
if(empty($file_info) ){
return json_output(101,'文件不存在');
}
if($file_info['Is Dir']=='Yes'){
return json_output(101,'不支持目录下载');
}
//设置下载在路径
$file_name = substr($file,strrpos($file,'/')+1);
if(empty($path)){
$path = $this->default_download_path.'/';
}
if(is_dir($path)){
$path = rtrim($path,'/').'/'.$file_name;
}
if(file_exists($path)){
return json_output(103,'下载位置已存在文件'.$path);
}
$down_info = $this->baidu_pcs->download($file,$path);
if($down_info){
$this->save_download_info($down_info);
return json_output(0,'success',$down_info);
}else{
return json_output(104,'下载失败请重试');
}
}
/**
* @param $data
* @return int
* @param $full
* @desc 记录下载信息
*/
private function save_download_info($data,$full=false){
$info_file = $this->down_status_file;
if(!$full){//只修改部分
if(!is_writable(dirname($info_file))){
return false;
}
if(is_file($info_file)){
$info = include $info_file;
}else{
$info = array();
}
$data['status']=0;//开始下载
$info[md5($data['from'])]=$data;
}else{
$info = $data;
}
$info_str = '<?php'.PHP_EOL;
$info_str .= 'return '.PHP_EOL;
$info_str .=var_export($info,true);
$info_str .=';';
if(file_put_contents($info_file,$info_str)){
$this->down_status = array();
return true;
}else{
return false;
}
}
public function download_status(){
$down_status = $this->get_down_status();
$list = array();
$modified = false;
foreach($down_status as $key=>$status){
//下载状态文件被清除，那就也清除下载信息
if(!is_file($status['progress'])){
unset($down_status[$key]);
$modified = true;
continue;
}
//已下载完成和暂停的下载不作处理
if(isset($status['status']) and $status['status']==2){
$list[$key]=$status;
continue;
}
if(is_file($status['to'])){
$status['status'] = 2;//下载完成
$down_status[$key]['status']=2;
$modified=true;
}else{
$progress_info = $this->get_download_info($status['progress']);
if($progress_info===false){//无法获取下载信息
unset($down_status[$key]);
$modified = true;
continue;
}
$status['info'] = $progress_info;
//$status['status']=0;//正在下载
}
$list[$key]=$status;
}
//对下载状态做过修正，重新写回去
if($modified){$this->save_download_info($down_status,true);}
$status_array =array_column($list,'status');
//按照下载状态排序0正在下载 1暂停 2下载完成
array_multisort($status_array,$list);
$this->render('download_body',array('list'=>$list));
}
/**
* @desc 从下载状态文件解析下载进度
* @param $progress_file
* @return array|bool
*@todo 可能出现文件刚刚创建就获取文件信息fseek失败的情况
*/
protected function get_download_info($progress_file){
if(false === ($fh = fopen($progress_file,'r'))){
return false;
}
if(fseek($fh,-100,SEEK_END) !==0){
return false;
}
$str = fgets($fh,100);
fclose($fh);
$last = substr($str,strrpos($str,chr(13))+1);//取最后一行
$info=array_filter(explode("\t",$last));
return $info;
}
public function get_down_info(){
$file_key = get_post('file_key');
$down_status = $this->get_down_status();
if(!isset($down_status[$file_key])){
return json_output(101,'file not exist');
}
$info = $this->get_download_info($down_status[$file_key]['progress']);
if($info){
return json_output(0,'success',$info);
}else{
return json_output(101,'file not exist');
}
}
protected function get_down_status(){
if(empty($this->down_status)){
$this->down_status = include $this->down_status_file;
}
return $this->down_status;
}
public function render($template,$data=array()){
include BASE_PATH.'/templates/header.php';
extract($data);
include BASE_PATH.'/templates/'.$template.'.php';
include BASE_PATH.'/templates/footer.php';
return true;
}
public function pause(){
$file_key = get_post('file_key');
$down_status = $this->get_down_status();
if(empty($down_status) || !isset($down_status[$file_key])){
return json_output('101','参数错误');
}
if(empty($down_status[$file_key]['pid'])){
return json_output('102','系统错误');
}
if($this->baidu_pcs->kill($down_status[$file_key]['pid'])){
$down_status[$file_key]['status']=1;
$down_status[$file_key]['pid']=0;
$this->save_download_info($down_status,true);
return json_output(0,'success');
}else{
return json_output(103,'暂停失败请重试');
}
}
/**
* @desc 继续被暂停的下载
*/
public function continue_download(){
$file_key = get_post('file_key');
$down_status = $this->get_down_status();
if(empty($down_status) || !isset($down_status[$file_key])){
return json_output('101','参数错误');
}
if(!isset($down_status[$file_key]['from']) || !isset($down_status[$file_key]['to'])){
return json_output('102','系统错误');
}
$down_info = $this->baidu_pcs->download($down_status[$file_key]['from'],$down_status[$file_key]['to'],false,$down_status[$file_key]['progress']);
if($down_info){
$down_status[$file_key]=$down_info;
$this->save_download_info($down_status,true);
return json_output(0,'success',$down_info);
}else{
return json_output(101,'系统错误请重试');
}
}
/**
* @desc 删除一个下载任务，通常是已经被完成的下载任务
*/
public function remove(){
$file_key =get_post('file_key');
$down_status = $this->get_down_status();
if(empty($down_status) || !isset($down_status[$file_key])){
return json_output('101','参数错误');
}
if(!isset($down_status[$file_key]['progress']) ){
return json_output('102','系统错误');
}
if(is_file($down_status[$file_key]['pregress'])){
unlink($down_status[$file_key]['pregress']);
}
if($down_status[$file_key]['pid']){
$this->baidu_pcs->kill($down_status[$file_key]['pid']);
}
unset($down_status[$file_key]);
return json_output(0,'success');
}
public function setting(){
return $this->render('setting_body');
}
}