\blog\controllerImage

<?php
/**
 * Created by PhpStorm.
 * User: rxw
 * Date: 18-4-14
 * Time: 下午7:53
 */

namespace blog\controller;

use blog\lib\Web;

/**
 * Class Image
 * @package blog\controller
 *
 *
 * nginx 配置
 * location /upload {
    # 转到后台处理URL,表示Nginx接收完上传的文件后，然后交给后端处理的地址
    upload_pass /blog/upload;
    # 临时保存路径, 可以使用散列
    # 上传模块接收到的文件临时存放的路径， 1 表示方式，该方式是需要在/tmp/nginx_upload下创建以0到9为目录名称的目录，上传时候会进行一个散列处理。
    upload_store /tmp/nginx_upload;
    # 上传文件的权限，rw表示读写 r只读
    upload_store_access user:rw group:rw all:rw;
    # upload_resumable on;
    set $ngf 'rxwyun_102410_ngf';
    # 这里写入http报头，pass到后台页面后能获取这里set的报头字段
    upload_set_form_field $ngf.$upload_field_name[name] $upload_file_name;
    upload_set_form_field $ngf.$upload_field_name[content_type] $upload_content_type;
    upload_set_form_field $ngf.$upload_field_name[path] $upload_tmp_path;
    # Upload模块自动生成的一些信息，如文件大小与文件md5值
    upload_aggregate_form_field $ngf.$upload_field_name[md5] $upload_file_md5;
    upload_aggregate_form_field $ngf.$upload_field_name[size] $upload_file_size;
    # 允许的字段，允许全部可以 "^.*$"
    upload_pass_form_field "^.*$";
    # upload_pass_form_field "^submit$|^description$";
    # 每秒字节速度控制，0表示不受控制，默认0, 128K
    upload_limit_rate 0;
    # 如果pass页面是以下状态码，就删除此次上传的临时文件
    upload_cleanup 400 404 499 500-505;
    # 打开开关，意思就是把前端脚本请求的参数会传给后端的脚本语言，比如：http://192.168.1.251:9000/upload/?k=23,后台可以通过POST['k']来访问。
    upload_pass_args on;
    }
    location /blog/upload {
    proxy_pass http://127.0.0.1:86;
    # return 200;  # 如果不需要后端程序处理，直接返回200即可
    }
    location /blog/ {
    proxy_http_version 1.1;
    proxy_set_header Connection "keep-alive";
    proxy_set_header X-Real-IP $remote_addr;
    if (!-e $request_filename) {
    proxy_pass http://127.0.0.1:86;
    }
    }


    location /imgs/ {
    if ($request_uri ~* "^/imgs/([^.]+).(png|jpg|gif)_(\d+)x(\d+)$") {
    rewrite ^/imgs/([^\/]+)/([^.]+).(png|jpg|gif)_(\d+)x(\d+)$ /$1/image/zipimg/w/$4/h/$5?img=$1/$2.$3 last;  #会发送请求到php  处理图片压缩 然后再从定向到实际的图片地址
    #rewrite ^/imgs/([^\/]+)/([^.]+).(png|jpg|gif)_(\d+)x(\d+)$ /imgs/$1/$2$4x$5.$3 last;        #直接解析请求的图片地址，获取需要的大小， 然后组合真实的图片地址 获取资源
    }
    alias /var/www/php/easy-framework-swoole/;
    }

 */

class Image extends Web
{
//    允许的图片压缩比例
    private $zips = [
        '40x30',
        '160x90'
    ];


    public function zipimgApi()
    {
        $data = $this->request->get();
        if (empty($data['img']) || empty($data['w']) || empty($data['h']) || !file_exists($data['img'])) {
            return $this->header->setCode('404');
        }
        if (!in_array($data['w'] . 'x' . $data['h'], $this->zips)) {
            return $this->header->setCode('404');
        } else {
            $dst = $this->imgzip->resize($data['img'], $data['w'], $data['h']);
            return $this->header->rediret('http://localhost/imgs/' . $dst);
        }
    }
}