liche/admin/controllers/Upload.php

<?php
/**
 * Created by PhpStorm.
 * User: linfan
 * Date: 2018/11/13
 * Time: 16:43
 */

defined('BASEPATH') OR exit('No direct script access allowed');

ini_set('display_errors', 'On');


class Upload extends CI_Controller
{

    public function index()
    {
        $mode = $this->input->get('mode');
        $types = $this->input->get('type');
        $uptype = $this->input->get('uptype');
        $field = $this->input->get('field');
        $mark = $this->input->get('mark');
        $source = $this->input->get('source');

        if('file' == $mark){
            return $this->pdf();
        }

        $data['mode'] = $mode ? $mode : '1';
        $data['types'] = $types ? $types : 'jpg,png';
        $data['uptype'] = $uptype ? $uptype : 'qiniu';
        $data['mimes'] = $this->file_mime($data['types']);
        $data['field'] = $field ? $field : 'file';
        $data['source'] = $source ? $source : '';
        if ($mark) {
            $mark_data = explode(':', $mark);
            $data['mark'] = $mark_data[0];
            $data['mark_id'] = $mark_data[1];
            $data['mark_url'] = count($mark_data) >= 3 ? $mark_data[2] : '/biz/store/pic/add';
        }
        return $this->load->view('upload', $data);
    }

    public function pdf(){
        $mode = $this->input->get('mode');
        $types = $this->input->get('type');
        $uptype = $this->input->get('uptype');
        $source = $this->input->get('source');
        $field = $this->input->get('field');

        $data['mode'] = $mode ? $mode : '1';
        $data['types'] = $types;
        $data['uptype'] = $uptype ? $uptype : 'qiniu';
        $data['mimes'] = $this->file_mime($data['types']);
        $data['source'] = $source ? $source : '';
        $data['field'] = $field ? $field : '';
        $this->load->view('uploadpdf', $data);
    }

    //文件状态检查
    public function upstate()
    {
        $post = $this->input->post();
        $this->load->library('qiniu');

        $config = $this->qiniu->getConfig();
        $filename = join('/', str_split($post['md5'], 16)) . '.' . strtolower(pathinfo($post['filename'], PATHINFO_EXTENSION));
        $filename = $config['attch'] . date('Y/m') . '/' . $filename;
        $ratio = number_format($post['height']/$post['width'], 1);
        $ratio_exm = number_format(4/3, 1);

        if ($ratio <= 0.3){
            $picHeight = 225;
        } else if(0.3 < $ratio && $ratio < $ratio_exm) {
            $picHeight = number_format($post['height']/$post['width'], 2) * 750;
        } else if($ratio >= $ratio_exm) {
            $picHeight = 1000;
        }

        // 检查文件是否已上传
        if ($site_url = $this->qiniu->getFileUrl($filename)) {
            return $this->show_json('IS_FOUND', array(
                'site_url' => $site_url, 'file_url' => $filename, 'picHeight' => $picHeight, 'width' => $post['width']
            ));
        }

        // 需要上传文件，生成上传配置参数
        $config = array('uptype' => $post['uptype'], 'file_url' => $filename);
        $config['server'] = $this->qiniu->getUploadQiniuUrl(true);
        $config['token'] = $this->qiniu->getToken($filename);
        $config['picHeight'] = $picHeight;

        return $this->show_json('NOT_FOUND', $config);
    }

    //文件状态检查
    public function upstate_pdf()
    {
        $post = $this->input->post();
        $this->load->library('qiniu');

        $config = $this->qiniu->getConfig();
        $filename = join('/', str_split($post['md5'], 16)) . '.' . strtolower(pathinfo($post['filename'], PATHINFO_EXTENSION));
        $filename = $config['attch'] . date('Y/m') . '/' . $filename;

        // 检查文件是否已上传
        if ($site_url = $this->qiniu->getFileUrl($filename)) {
            return $this->show_json('IS_FOUND', array(
                'site_url' => $site_url,
                'file_url' => $filename,
                'file_title' => substr($filename, strrpos($filename, '/')+1)
            ));
        }

        // 需要上传文件，生成上传配置参数
        $config = array('uptype' => $post['uptype'], 'file_url' => $filename);
        $config['server'] = $this->qiniu->getUploadQiniuUrl(true);
        $config['token'] = $this->qiniu->getToken($filename);

        $config['file_title'] = substr($filename, strrpos($filename, '/')+1);

        return $this->show_json('NOT_FOUND', $config);
    }

    //返回json数据
    protected function show_json($code = '', $data = array())
    {
        header('Content-Type:application/json; charset=utf-8');
        echo json_encode(array('code' => $code, 'data' => $data), JSON_UNESCAPED_UNICODE);
        return false;
    }

    private function file_mime($ext, $mime = array())
    {
        $mimes = &get_mimes();

        foreach (is_string($ext) ? explode(',', $ext) : $ext as $e) {
            $tmp = isset($mimes[strtolower($e)]) ? $mimes[strtolower($e)] : 'application/octet-stream';

            if (is_array($tmp)) {
                $mime = array_merge($mime, $tmp);
            } else {
                $mime[] = $tmp;
            }
        }

        return join(',', array_unique($mime));
    }
}