CI(2.2) 配置 jquery的上传插件Uploadify(v3.2) 上传文件

1、下载uploadify,   我的是v3.2

2、模板页面引入：

<base href='{base_url()}' />
<script type="text/javascript" src="/public/admin/js/jquery.js"></script>
<script type="text/javascript" src="/public/js/ajaxfileupload.js"></script>
<script type="text/javascript" src="/public/js/uploadify/jquery.uploadify.min.js"></script>
<link rel="stylesheet" type="text/css" href="/public/js/uploadify/uploadify.css" />

3、模板页面使用：

<tr>
    <td style="text-align:center;padding-top:10px;"><span class="red"> * </span>上传并扫描应用：</td>
    <td>
        <input id="uploadApk" name="uploaApk" type="file" />
        <span id="upload_note">
            {if $edit}<font color='red'>已上传应用“{$apply['name']}”&nbsp; </font>{else}<font color='red'>建议应用包100M以内</font>{/if}
        </span>
    </td>

</tr> 

4、js code:

<script>
window.apk_uploading_flag = 0;
$(function() {
    var seid = '{$seid}' ;
    var type = '' ;
    var vid = "{$apply['vid']}";
    $("#uploadApk").uploadify({
        height        : 30,
        swf           : '/public/js/uploadify/uploadify.swf',//Uploadify 自带的flash
        uploader      : '/admin/ajaxSelfUpload',//ajax提交页面
        width         : 120,
        buttonText    : '上传应用',
        method        : 'post',
        debug         : false,
        fileTypeExts  : '*.apk',
        sizeLimit     : 512000,
        fileObjName   : 'uploadApk',
        progressData  : 'speed' ,
        formData      : { 'session_tmp': '' },
        onUploadStart:function(){
                window.apk_uploading_flag = 1;
                $("#uploadApk").uploadify('settings','formData',{ 'session': seid});
        },
        onUploadComplete:function(){
                window.apk_uploading_flag = 0;
        },
        onUploadSuccess:function(file,data,response){
            var data = JSON.parse(data)
            if(data.status){
                $("#upload_note font").html('应用上传并扫描成功');
            }else{
                $("#upload_note font").html(data.info);
            }
        }
    });

</script>

5、controller中代码

1、seid取值

 $this->assign('seid', $this->input->cookie($this->config->item('cookie_prefix') . $this->config->item('sess_cookie_name')));

2、上传函数

        /**
         * 上传应用本身并扫描
         */
        public function ajaxSelfUpload() {

                $strError = '';
                $this->load->library("MyUpload");//上传类
                $tmpFile = $_FILES['uploadApk'];
                $editId = $this->input->get('vid');
                $apkSize = $tmpFile['size'];
                $apkName = $tmpFile['name'];
                //判断文件格式、大小、判断包名是否已经存在
                //通过aapt获得apk的所有信息，将上传的apk解压到临时目录
                $upload = new MyUpload($tmpFile);
                $upload->setFileExt(array('apk'));
                $upload->setMaxsize(1024 * 1024 * 500);

                //reset upload path with category
                $uploadApkDir = $this->getSelfUploadDir();
                $upload->setUploadPath($uploadApkDir);
                if (!$upload->isAllowedTypes()) {
                        $strError = '上传文件不是有效的apk文件';
                } elseif ($upload->isBigerThanMaxSize()) {
                        $strError = '上传文件最大不能超过 ' . intval($upload->getMaxsize() / 1024) . 'KB';
                }

                //保证上传的生成的文件唯一而不覆盖其他文件
                if (empty($strError) and $upload->upload(false, FALSE)) {

                        $uploadApkFilePath = $upload->getUplodedFilePath();
                        $this->load->library('ParseApkInfo');
                        $ParseApkInfo = new ParseApkInfo($uploadApkFilePath);
                        $apkInfoArray = $ParseApkInfo->getApkMoreInfo();

                        if (!$ParseApkInfo->getErrorMessage() && $apkInfoArray) {

                                $apkInfoArray['icon'] = $ParseApkInfo->createApkIcon('/auto/apply/img/', '/auto/apply/img/');
                                if (!$ParseApkInfo->getErrorMessage()) {
                                        $apkInfoArray['size'] = $apkSize;
                                        $apkInfoArray['size_mb'] = round($apkSize / 1024 / 1024, 2);
                                        $apkInfoArray['apk'] = ToolsHelper::getFileAccessUrl($uploadApkFilePath);
                                        $apkInfoArray['icon_url'] = ToolsHelper::getFileAccessUrl($apkInfoArray['icon']);
                                        ajaxReturn("OK", true, $apkInfoArray);
                                }
                        }
                        ajaxReturn($ParseApkInfo->getErrorMessage(), false);
                } else {
                        ajaxReturn($strError, false);
                }
        }

        /**
         * 应用apk包存放目录
         * @return string
         */
        private function getSelfUploadDir() {
                return ToolsHelper::getSelfUploadDir();
        }

基本配置完成，但是由于是在管理后台上传文件，所以flash 没有上传session需要手工配置下CI（uploadify配置本身简单，就是再配置后台登录上传的session的时候我花费了很长 时间所以跟大家分享出来）

修改system\libraries下面的Session.php文件：

修改sess_read函数：修改了2处

 function sess_read()
     {
         // Fetch the cookie
         //$session = $this->CI->input->cookie($this->sess_cookie_name);
         //为了能够在各大浏览器支持falsh上传文件，对140行处进行以下修改  （修改第一处）
         if($this->CI->input->post('session_tmp')){
              $session = $this->CI->input->post('session_tmp');
          }else{
              $session = $this->CI->input->cookie($this->sess_cookie_name);
          }
          //修改结束

         // No cookie?  Goodbye cruel world!...
         if ($session === FALSE)
         {
             log_message('debug', 'A session cookie was not found.');
             return FALSE;
         }

         // HMAC authentication
         $len = strlen($session) - 40;

         if ($len <= 0)
         {
             log_message('error', 'Session: The session cookie was not signed.');
             return FALSE;
         }

         // Check cookie authentication
         $hmac = substr($session, $len);
         $session = substr($session, 0, $len);

         // Time-attack-safe comparison
         $hmac_check = hash_hmac('sha1', $session, $this->encryption_key);
         $diff = 0;

         for ($i = 0; $i < 40; $i++)
         {
             $xor = ord($hmac[$i]) ^ ord($hmac_check[$i]);
             $diff |= $xor;
         }

         if ($diff !== 0)
         {
             log_message('error', 'Session: HMAC mismatch. The session cookie data did not match what was expected.');
             $this->sess_destroy();
             return FALSE;
         }

         // Decrypt the cookie data
         if ($this->sess_encrypt_cookie == TRUE)
         {
             $session = $this->CI->encrypt->decode($session);
         }

         // Unserialize the session array
         $session = $this->_unserialize($session);

         // Is the session data we unserialized an array with the correct format?
         if ( ! is_array($session) OR ! isset($session['session_id']) OR ! isset($session['ip_address']) OR ! isset($session['user_agent']) OR ! isset($session['last_activity']))
         {
             $this->sess_destroy();
             return FALSE;
         }

         // Is the session current?
         if (($session['last_activity'] + $this->sess_expiration) < $this->now)
         {
             $this->sess_destroy();
             return FALSE;
         }

         // Does the IP Match?
         if ($this->sess_match_ip == TRUE AND $session['ip_address'] != $this->CI->input->ip_address())
         {
             $this->sess_destroy();
             return FALSE;
         }
         //为了能够在各大浏览器支持falsh上传文件，对199行处进行以下修改   （修改第二处）
          if (stristr($this->CI->input->user_agent(),'shockwave'))
          {
             $this->sess_match_useragent = FALSE;
          }
          //修改结束

         // Does the User Agent Match?
         if ($this->sess_match_useragent == TRUE AND trim($session['user_agent']) != trim(substr($this->CI->input->user_agent(), 0, 120)))
         {
             $this->sess_destroy();
             return FALSE;
         }

         // Is there a corresponding session in the DB?
         if ($this->sess_use_database === TRUE)
         {
             $this->CI->db->where('session_id', $session['session_id']);

             if ($this->sess_match_ip == TRUE)
             {
                 $this->CI->db->where('ip_address', $session['ip_address']);
             }

             if ($this->sess_match_useragent == TRUE)
             {
                 $this->CI->db->where('user_agent', $session['user_agent']);
             }

             $query = $this->CI->db->get($this->sess_table_name);

             // No result?  Kill it!
             if ($query->num_rows() == 0)
             {
                 $this->sess_destroy();
                 return FALSE;
             }

             // Is there custom data?  If so, add it to the main session array
             $row = $query->row();
             if (isset($row->user_data) AND $row->user_data != '')
             {
                 $custom_data = $this->_unserialize($row->user_data);

                 if (is_array($custom_data))
                 {
                     foreach ($custom_data as $key => $val)
                     {
                         $session[$key] = $val;
                     }
                 }
             }
         }

         // Session is valid!
         $this->userdata = $session;
         unset($session);

         return TRUE;
     }

疑问：刚开始配置完仍然上传不成功，后来排查原因，什么也没改动，然后不小心试了试就好了……所以如有问题@me

在此贴出上传类：MyUpload

application\libraries\MyUpload.php

<?php

class MyUpload
{

    private $allowedTypes = array('image/jpg','image/bmp', 'image/jpe', 'image/jpeg', 'image/pjpeg', 'image/x-png','image/png','image/gif');

    private $fileExt = array('jpg');

    private $uploadPath = '';

    private $maxSize = 307200;//300k

    public function __construct(array $file=array())
    {
        $this->file = $file;
    }

    /**
     * 设置文件的上传目录，绝对地址
     * @param string $uploadPath
     * @return null
     */
    public function setUploadPath($uploadPath=UPLOAD_DIR)
    {
        $this->uploadPath = $uploadPath;
    }

    /**
     * 设置文件的大小，byte单位
     * @param integer $maxSize
     * @return null
     */
    public function setMaxsize($maxSize)
    {
        $this->maxSize = $maxSize;
    }

    /**
     * 设置允许上传的文件mime
     * @param array $allowedTypes 允许上传的文件类型数组 例如：array('image/jpg','image/bmp')
     * @return null
     */
    public function setAllowedTypes(array $allowedTypes)
    {
        $this->allowedTypes = $allowedTypes;
    }

    /**
     * 设置允许上传的文件的后缀名
     * @param array $fileExt 例如：array('jpg','png')
     * @return null
     */
    public function setFileExt(array $fileExt)
    {
        $this->fileExt = $fileExt;
    }

    /**
     * 获取文件的大小
     * @return integer
     */
    public function getMaxsize()
    {
        return $this->maxSize;
    }

    /**
     * 获取允许上传的图片后缀名
     * @param unknown_type $val
     * @param array $array
     * @return unknown_type
     */
    public function getaAllowedExt()
    {
        return $this->allowedTypes;
    }

    /**
     * 检查文件大小，是否超过了文件的大小限制
     * @return bool
     */
    public function isBigerThanMaxSize()
    {
        return $this->file["size"] >  $this->maxSize;
    }

    /**
     * 检查文件后缀名是否正确
     * @return unknown_type
     */
    public function isAllowedTypes()
    {
        //        $fileExt = array('gif', 'jpg', 'jpeg', 'png', 'jpe');
        //        $fileExt = array('jpg');
        $ext = $this->getFileExt();

        if (in_array($ext, $this->fileExt))
        {
            if ($this->file['tmp_name'] === FALSE)
            {
                return false;
            }

        }
        else
        {
            return false;
        }

        return true;
    }

    /**
     * 验证文件的内容类型
     * @return bool
     */
    public function isAllowedMime()
    {
        if(  in_array($this->file["type"],$this->allowedTypes) )
        {
            return true;
        }
    }

    /**
     * 获取文件后缀名
     * @return string|null
     */
    public function getFileExt()
    {
        $x = explode('.', $this->file['name']);
        return strtolower(end($x));
    }

    /**
     * 检查图片大小是否正确
     * @param integer $width 被允许的宽度
     * @param integer $height 被允许的高度
     * @return bool
     */
    public function isAllowedSize($width,$height)
    {
        //对于上传的文件类型，大小，尺寸等做验证。。此处暂时省略
        $fileSize     = getimagesize($this->file['tmp_name']);
        $fileWidth     = $fileSize[0];
        $fileHeight = $fileSize[1];
        if($fileWidth != $width or $fileHeight != $height)
        {
            return false;
        }
        return true;
    }
    /**
     * 检查图片大小是否正确 只要不大于设置的最大宽高就可以
     * @param integer $width 被允许的最大宽度
     * @param integer $height 被允许的最大高度
     * @return bool
     */
    public function isAllowedMaxSize($width,$height)
    {
        $fileSize     = getimagesize($this->file['tmp_name']);
        $fileWidth     = $fileSize[0];
        $fileHeight = $fileSize[1];
        if($fileWidth > $width or $fileHeight > $height)
        {
            return false;
        }
        return true;
    }        

    /**
     * 上传图片
     * @param bool $isReplace 如果存在同名图片是否覆盖
         * @param bool $isNewName 是否产生新的文件名或是用上传文件自身名字
     * @return bool
     */
    public function upload($isReplace=true,$isNewName=true)
    {
                if($isNewName){
                        $filename = self::createKey().'.'.$this->getFileExt();
                }else{
                        $filename = $this->file["name"];
                }

        if (file_exists($this->uploadPath. "/" . $filename))
        {
                        if($isReplace){
                                @unlink($this->uploadPath. "/" . $filename);
                        }else{
                                $tmpExt = '.'.$this->getFileExt();
                                $filename = rtrim($this->file['name'], $tmpExt);
                                $filename .= "_" . date('ymd',time()).'_'.date('His',time()).$tmpExt;
                        }
        }

        self::createDir($this->uploadPath);

        if ( ! @copy($this->file["tmp_name"], $this->uploadPath. "/" . $filename))
        {
            if ( ! move_uploaded_file($this->file["tmp_name"], $this->uploadPath. "/" . $filename))
            {

                return false;
            }

        }
        $this->filePath = str_replace(UPLOAD_DIR,'',$this->uploadPath. "/" . $filename);
        return true;
    }

    /**
     * 获取文件的真实名称
     * @return string
     */
    public function getRealName()
    {
        return $this->file['name'];
    }

    /**
     * 生成一串随机数字
     * @return string
     */
    public static function createKey()
    {
        $randpwd = '';
        for ($i = 0; $i < 10; $i++)
        {
            $randpwd .= mt_rand(33, 500);
        }

        return md5($randpwd);
    }

    /**
     * 返回被保存的带路径的文件名
     * @return string
     */
    public function getUplodedFilePath()
    {
        return @$this->filePath;
    }

    /**
     * 循环创建目录
     * @param string $path
     * @return null
     */
    public static function createDir($path){
        if(!is_readable($path)){
            self::createDir( dirname($path) );
            if(!is_file($path)) mkdir($path,0777);
        }
    }

}