mirror of https://github.com/helloxz/imgurl
479 lines
18 KiB
PHP
479 lines
18 KiB
PHP
<?php
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/*
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name:ImgURL上传控制器
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author:xiaoz.me
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QQ:337003006
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*/
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//允许跨域请求
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header("Access-Control-Allow-Origin: *");
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defined('BASEPATH') OR exit('No direct script access allowed');
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class Upload extends CI_Controller{
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//声明上传文件路径
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public $upload_path;
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//声明文件相对路径
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public $relative_path;
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public $image_lib;
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//当前时间
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public $date;
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//设置临时目录
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public $temp;
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//用户是否已经登录的属性
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protected $user;
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//获取站点主域名
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protected $main_domain;
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//构造函数
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public function __construct()
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{
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parent::__construct();
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//设置上传文件路径
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$this->upload_path = FCPATH.'imgs/'.date('Y',time()).'/'.date('m',time()).'/';
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$this->upload_path = str_replace('\\','/',$this->upload_path);
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$this->relative_path = "/imgs/".date('Y',time()).'/'.date('m',time()).'/';
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$this->relative_path = str_replace('\\','/',$this->relative_path);
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$this->temp = FCPATH.'data/temp/';
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//如果文件夹不存在，则创建文件夹
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if(!is_dir($this->upload_path)){
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//递归模式创建目录
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mkdir($this->upload_path,0777,TRUE);
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}
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$this->date = date('Y-m-d H:i',time());
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//加载辅助函数
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$this->load->helper('basic');
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$ip = get_ip();
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//加载基本类
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$this->load->library('basic');
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//加载查询模型
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$this->load->model('query','',TRUE);
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$this->main_domain = $this->basic->domain();
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//用户已经登录
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if($this->basic->is_login(FALSE)){
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$this->user = 'admin';
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}
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else{
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$this->user = 'visitor';
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//限制上传数量
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if($this->query->uplimit($ip) === FALSE){
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$this->error_msg("上传达到上限！");
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}
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}
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}
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//通用上传设置
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protected function config($upload_path = ''){
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//设置上传路径
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if($upload_path == ''){
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$upload_path = $this->upload_path;
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}
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// var_dump();
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$config['upload_path'] = $upload_path;
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$config['allowed_types'] = 'gif|jpg|jpeg|png|bmp|webp';
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//$config['allowed_types'] = 'image/jpeg|image/png|image/gif|image/bmp|image/x-ms-bmp|image/webp';
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$config['max_size'] = 5120;
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$config['file_ext_tolower'] = TRUE; //文件名转换为小写
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$config['overwrite'] = TRUE; //覆盖同名文件
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$config['encrypt_name'] = TRUE; //随机命名图片
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return $config;
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}
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public function localhost($type = 'json'){
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//加载上传的配置选项
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$config = $this->config();
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//加载上传类
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$this->load->library('upload', $config);
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//上传失败
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if ( ! $this->upload->do_upload('file'))
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{
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$msg = $this->upload->display_errors();
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$msg = strip_tags($msg);
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$this->error_msg($msg);
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}
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else
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{
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$data = $this->upload->data();
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//加载模型
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$this->load->model('insert','',TRUE);
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$this->load->model('query','',TRUE);
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//计算文件MD5
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$file_name = md5_file($data['full_path']);
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$file_name = substr($file_name,8,16);
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//图片唯一ID
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$imgid = $file_name;
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$file_name = $file_name.$data['file_ext'];
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//新图片完整路径
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$full_path = $this->upload_path.$file_name;
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$full_path = str_replace("\\","/",$full_path);
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//新图片相对路径
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$relative_path = $this->relative_path.$file_name;
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//缩略图相对路径
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$thumbnail_path = $this->relative_path.$imgid.'_thumb'.$data['file_ext'];
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//获取域名
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$domain = $this->query->domain('localhost');
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//获取图片URL地址
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$url = $domain.$relative_path;
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//缩略图地址
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$thumbnail_url = $domain.$thumbnail_path;
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//重命名文件
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rename($data['full_path'],$full_path);
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//生成缩略图
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$this->load->library('image');
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if(!$this->image->thumbnail($full_path,290,175)){
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//像素太小就不生产缩略图
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$thumbnail_url = $domain.$relative_path;
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}
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//CI获取获取.bmp 图片的像素，认为.bmp不是图像类型，改用其它方法获取像素
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if( $data['file_type'] === 'image/x-ms-bmp' ){
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$tmpinfo = getimagesize($full_path);
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$data['image_width'] = $tmpinfo[0];
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$data['image_height'] = $tmpinfo[1];
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}
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//webp的图片暂时无法获取宽高，则设置为0
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if($data['file_type'] === 'image/webp'){
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$data['image_width'] = 0;
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$data['image_height'] = 0;
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}
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//查询图片是否上传过
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if($imginfo = $this->query->repeat($imgid)){
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$id = $imginfo->id;
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//重组数组
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$info = array(
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"code" => 200,
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"id" => $id,
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"imgid" => $imgid,
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"relative_path" => $relative_path,
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"url" => $url,
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"thumbnail_url" => $thumbnail_url,
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"width" => $data['image_width'],
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"height" => $data['image_height']
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);
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//$this->succeed_msg($info);
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//根据不同的类型返回不同的数据
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$this->re_data($type,$info);
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}
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//图片没有上传过
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else{
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$arr = array(
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"ip" => get_ip(),
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"ua" => get_ua(),
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"date" => $this->date
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);
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//生成token
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$token = $this->token($arr);
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//生成删除链接
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$delete = $this->main_domain.'/delete/'.$token;
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//需要插入到img_images表的数据
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$datas = array(
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"imgid" => $imgid,
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"path" => $relative_path,
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"thumb_path"=> $thumbnail_path,
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"storage" => "localhost",
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"ip" => get_ip(),
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"ua" => get_ua(),
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"date" => $this->date,
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"user" => $this->user,
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"level" => 'unknown',
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"token" => $token
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);
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//需要插入到imginfo表的数据
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$imginfo = array(
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"imgid" => $imgid,
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"mime" => $data['file_type'],
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"width" => $data['image_width'],
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"height" => $data['image_height'],
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"ext" => $data['file_ext'],
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"client_name" => $data['client_name']
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);
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//插入数据到img_images表
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$id = $this->insert->images($datas);
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$this->insert->imginfo($imginfo);
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//重组数组
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$info = array(
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"code" => 200,
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"id" => $id,
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"imgid" => $imgid,
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"relative_path" => $relative_path,
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"url" => $url,
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"thumbnail_url" => $thumbnail_url,
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"width" => $data['image_width'],
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"height" => $data['image_height'],
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"delete" => $delete
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);
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//根据不同的类型返回不同的数据
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$this->re_data($type,$info);
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}
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}
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}
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//根据不同的类型返回不同的数据
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protected function re_data($type,$info){
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$url = $info['url'];
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switch ($type) {
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case 'json':
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$this->succeed_msg($info);
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break;
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case 'url':
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echo $url;
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break;
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case 'html':
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echo "<img src = '$url' />";
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break;
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case 'markdown':
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echo "";
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break;
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case 'bbcode':
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echo "[img]".$url."[/img]";
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break;
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default:
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$this->succeed_msg($info);
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break;
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}
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}
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//上传成功返回json
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protected function succeed_msg($data){
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$info = json_encode($data);
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echo $info;
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exit;
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}
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//上传失败返回json
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protected function error_msg($msg){
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$data = array(
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"code" => 0,
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"msg" => $msg
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);
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$data = json_encode($data);
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echo $data;
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exit;
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}
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//URL上传
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public function url(){
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$url = @$this->input->post('url',TRUE);
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$url = trim($url);
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//检测用户是否登录
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$this->load->library('basic');
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$this->basic->is_login(TRUE);
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//判断URL是否合法
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if(!filter_var($url, FILTER_VALIDATE_URL)){
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$this->error_msg('不是有效的URL地址！');
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}
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//继续执行
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//获取图片后缀名
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$url_arr = explode('.',$url);
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$ext = strtolower(end($url_arr));
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//判断是否是允许的后缀
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switch($ext){
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case 'png':
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case 'jpg':
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case 'jpeg':
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case 'bmp':
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case 'gif':
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case 'bmp':
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break;
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default:
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$this->error_msg('不是有效的图片地址！');
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exit;
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}
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//继续执行
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//下载图片
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$pic_data = $this->basic->dl_pic($url);
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//临时文件路径
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$tmp_name = $this->temp.md5($url);
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//写入临时文件
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file_put_contents($tmp_name,$pic_data);
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//计算文件MD5
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$imgid = md5_file($tmp_name);
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$imgid = substr($imgid,8,16);
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$file_name = $imgid.'.'.$ext;
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//图片相对路径
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$relative_path = $this->relative_path.$file_name;
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$ext = '.'.$ext;
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//查询图片是否已经上传过
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if($this->query->repeat($imgid)){
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//删除临时文件
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unlink($tmp_name);
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$this->error_msg('文件已经上传过！');
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exit;
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}
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//没有上传过继续执行
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//复制图片到上传目录
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$full_path = $this->upload_path.$file_name;
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copy($tmp_name,$full_path);
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//删除临时文件
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unlink($tmp_name);
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//生成缩略图
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$this->load->library('image');
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$this->image->thumbnail($full_path,290,175);
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//获取图片信息
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$img_info = getimagesize($full_path);
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//缩略图相对地址
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$thumbnail_path = $this->relative_path.$imgid.'_thumb'.$ext;
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//需要插入到images表的数据
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$datas = array(
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"imgid" => $imgid,
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"path" => $relative_path,
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"thumb_path"=> $thumbnail_path,
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"storage" => "localhost",
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"ip" => get_ip(),
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"ua" => get_ua(),
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"date" => $this->date,
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"user" => $this->user,
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"level" => 'unknown'
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);
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//需要插入到imginfo表的数据
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$imginfo = array(
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"imgid" => $imgid,
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"mime" => $img_info['mime'],
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"width" => $img_info[0],
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"height" => $img_info[1],
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"ext" => $ext,
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"client_name" => $file_name
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);
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//加载数据库模型
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$this->load->model('insert','',TRUE);
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//插入数据到img_images表
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$id = $this->insert->images($datas);
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$this->insert->imginfo($imginfo);
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//获取域名
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$domain = $this->query->domain('localhost');
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//获取图片URL地址
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$url = $domain.$relative_path;
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//返回成功的信息
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$re = array(
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"code" => 200,
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"msg" => $url
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);
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$re = json_encode($re);
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echo $re;
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}
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//粘贴上传
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public function parse(){
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$date = date('Y-m-d H:i:s',time());
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//临时文件名
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$tmp_name = get_ip().get_ua().$date;
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$tmp_name = md5($tmp_name);
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//图片临时路径
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$tmp_file = $this->temp.$tmp_name;
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//接接收ase64图片
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$picfile = $_POST['content'];
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$picfile = base64_decode($picfile);
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//echo $picfile;
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//存储图片
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file_put_contents($tmp_file, $picfile);
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//判断图片MIME类型
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if(!mime($tmp_file)){
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unlink($tmp_file);
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$this->error_msg('不允许的文件类型！');
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exit;
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}
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//继续执行
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//计算文件MD5
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$imgid = md5_file($tmp_file);
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$imgid = substr($imgid,8,16);
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//获取文件后缀
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$ext = ext($tmp_file);
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$file_name = $imgid.$ext;
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//图片相对路径
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$relative_path = $this->relative_path.$file_name;
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//图片完整路径
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$full_path = $this->upload_path.$file_name;
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//查询图片是否已经上传过
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if($this->query->repeat($imgid)){
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//删除临时文件
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unlink($tmp_file);
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$this->error_msg('文件已经上传过！');
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exit;
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}
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//没有上传过继续执行
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//复制图片到上传目录
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copy($tmp_file,$full_path);
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$file_name = $imgid.$ext;
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//删除临时文件
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unlink($tmp_file);
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//生成缩略图
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$this->load->library('image');
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$this->image->thumbnail($full_path,290,175);
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//缩略图地址
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$thumbnail_path = $this->relative_path.$imgid.'_thumb.'.$ext;
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//获取图片信息
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$img_info = getimagesize($full_path);
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//需要插入到images表的数据
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$datas = array(
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"imgid" => $imgid,
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"path" => $relative_path,
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"thumb_path"=> $thumbnail_path,
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"storage" => "localhost",
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"ip" => get_ip(),
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"ua" => get_ua(),
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"date" => $this->date,
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"user" => $this->user,
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"level" => 'unknown'
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);
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//需要插入到imginfo表的数据
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$imginfo = array(
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"imgid" => $imgid,
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"mime" => $img_info['mime'],
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"width" => $img_info[0],
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"height" => $img_info[1],
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"ext" => $ext,
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"client_name" => $file_name
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);
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//加载数据库模型
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$this->load->model('insert','',TRUE);
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//插入数据到img_images表
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$id = $this->insert->images($datas);
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$this->insert->imginfo($imginfo);
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//获取域名
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$domain = $this->query->domain('localhost');
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//获取图片URL地址
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$url = $domain.$relative_path;
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$thumbnail_url = $domain.$this->relative_path.$imgid.'_thumb'.$ext;
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//返回成功的信息
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//重组数组
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$info = array(
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"code" => 200,
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"id" => $id,
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"imgid" => $imgid,
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"relative_path" => $relative_path,
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"url" => $url,
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"thumbnail_url" => $thumbnail_url,
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"width" => $img_info[0],
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"height" => $img_info[1]
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);
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$this->succeed_msg($info);
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//echo $re;
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}
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/*
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1. 该方法生成图片的唯一删除token
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2. 参数为一个数组，内容为IP/UA/DATE
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3. ip + ua + date + 4位随机数，进行md5加密得到token
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*/
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protected function token($arr){
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$ip = $arr['ip'];
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$ua = $arr['ua'];
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$date = $arr['date'];
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//生成4位随机数
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$str = GetRandStr(4);
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$token = $ip.$ua.$date.$str;
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$token = md5($token);
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//token只需要16位
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$token = substr($token, 8, 16);
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return $token;
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}
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}
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?>
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