server/WebRoot/wechat/vod/upload.js

std_name=''
std_id=''
accessid = ''
accesskey = ''
host = ''
policyBase64 = ''
signature = ''
callbackbody = ''
filename = ''
upfilename = ''
key = ''
expire = 0
g_object_name = ''
g_object_name_type = 'local_name'   //使用本地名
max_file_size=0
aspect_num=''
now = timestamp = Date.parse(new Date()) / 1000;
type = getQueryVariable("type");

var a = send_request( '../../vod/status.htm?aspect_id='+ getQueryVariable("id") + "&type=" + type);
if (a.errorCode=='1102')
	window.location = '../';

if (a.errorCode=='1901') {
	document.getElementById('h').innerText=a.errorMsg;
	document.getElementById('selectfiles').style.display="none";
} else if(a.errorCode=='20000') {
	debugger;
	document.getElementById('h').innerHTML ="上传成功";
	document.getElementById('selectfiles').style.display="none";
} else {
	debugger;
	max_file_size = a.map.max_file_size;
	std_name = a.map.std_name;
	std_id = a.map.std_id;
	document.getElementById('h').innerHTML ="请上传文件(最大"+max_file_size+"MB) <br>请认真核对。<br><font color='red'>未显示上传成功前请不要离开本页面，切勿切屏、息屏。</font>";
}



function send_request(serverUrl)
{
    var xmlhttp = null;
    if (window.XMLHttpRequest){
        xmlhttp=new XMLHttpRequest();
    } else if (window.ActiveXObject){
    	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  
    if (xmlhttp!=null){
        // serverUrl是 用户获取 '签名和Policy' 等信息的应用服务器的URL，请将下面的IP和Port配置为您自己的真实信息。
        //serverUrl = 'http://10072.hmsoft.cn/bk/vod/postkey.htm'

        xmlhttp.open( "GET", serverUrl, false );
        xmlhttp.send( null );
        return eval ("(" + xmlhttp.responseText + ")");
    }else{
        alert("Your browser does not support XMLHTTP.");
    }
};

function check_object_radio() {
    var tt = document.getElementsByName('myradio');
    for (var i = 0; i < tt.length ; i++ )
    {
        if(tt[i].checked)
        {
            g_object_name_type = tt[i].value;
            break;
        }
    }
}

function get_signature()
{
    // 可以判断当前expire是否超过了当前时间， 如果超过了当前时间， 就重新取一下，3s 作为缓冲。
    now = timestamp = Date.parse(new Date()) / 1000; 
    if (expire < now + 3)
    {
        var obj = send_request( '../../vod/postkey.htm?aspect_id='+ getQueryVariable("id")+'&std_id='+std_id+"&type=" + getQueryVariable("type"));
     
        if(obj['success']!=null){
	        	console.log(obj['errorMsg']);
	        	alert(obj['errorMsg']);
	        	if (a.errorCode=='1102')
	        		window.location = '../';
	        	return false;
        }
        host = obj['host']
        policyBase64 = obj['policy']
        accessid = obj['accessid']
        signature = obj['signature']
        expire = parseInt(obj['expire'])
        callbackbody = obj['callback'] 
        key = obj['dir']
        aspect_num = obj['aspect_num']
        return true;
    }
    return false;
};

function random_string(len) {
　　varlen = len || 32;
　　var chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';   
　　var maxPos = chars.length;
　　var pwd = '';
　　for (i = 0; i < len; i++) {
    　　pwd += chars.charAt(Math.floor(Math.random() * maxPos));
    }
    return pwd;
}

function get_suffix(filename) {
    pos = filename.lastIndexOf('.')
    suffix = ''
    if (pos != -1) {
        suffix = filename.substring(pos)
    }
    return suffix;
}

function get_name(filename) {
    pos = filename.lastIndexOf('.')
    f = ''
    if (pos != -1) {
        f = filename.substring(0,pos)
    }
    return f;
}

function calculate_object_name(filename)
{
    if (g_object_name_type == 'local_name')
    {
        g_object_name += "${filename}"
    }
    else if (g_object_name_type == 'random_name')
    {
        suffix = get_suffix(filename)
        g_object_name = key + random_string(10) + suffix
    }
    else if (g_object_name_type == 'upfilename')
    {
    	suffix = get_suffix(filename)
    	g_object_name = key + upfilename + suffix
    }
    return ''
}

function get_uploaded_object_name(filename)
{
    if (g_object_name_type == 'local_name')
    {
        tmp_name = g_object_name
        tmp_name = tmp_name.replace("${filename}", filename);
        return tmp_name
    }
    else if(g_object_name_type == 'random_name')
    {
        return g_object_name
    }
}

function set_upload_param(up, filename, ret)
{
    if (ret == false)
    {
        ret = get_signature(filename)
        //判断 
    }
    if (ret){
    
	    g_object_name = key;
	    if (filename != '') {
	    	suffix = get_suffix(filename)
	        calculate_object_name(filename)
	    }
	    new_multipart_params = {
	        'key' : g_object_name,
	        'policy': policyBase64,
	        'OSSAccessKeyId': accessid, 
	        'success_action_status' : '200', //让服务端返回200,不然，默认会返回204
	        'callback' : callbackbody,
	        'signature': signature,
	    };
	
	    up.setOption({
	        'url': host,
	        'multipart_params': new_multipart_params
	    });
	    up.start();
    }
}

function getQueryVariable(variable)
{
       var query = window.location.search.substring(1);
       var vars = query.split("&");
       for (var i=0;i<vars.length;i++) {
               var pair = vars[i].split("=");
               if(pair[0] == variable){return pair[1];}
       }
       return(false);
}	




var uploader = new plupload.Uploader({
	runtimes : 'html5,flash,silverlight,html4',
	browse_button : 'selectfiles', 
    multi_selection: false,
	container: document.getElementById('container'),
	flash_swf_url : 'lib/plupload-2.1.2/js/Moxie.swf',
	silverlight_xap_url : 'lib/plupload-2.1.2/js/Moxie.xap',
    url : 'http://oss.aliyuncs.com',

    filters: {
        mime_types : [ //只允许上传图片和zip文件
        { title : "mp4 files", extensions : "pdf,ppt,pptx,mp4,mov,flv" }
        ],
        max_file_size :'1000mb', //最大上传
        prevent_duplicates : true //不允许选取重复文件
    },

	init: {
		PostInit: function() {
			document.getElementById('ossfile').innerHTML = '';
		},

		FilesAdded: function(up, files) {
            console.log("FilesAdded"+files.length);
			plupload.each(files, function(file) {
				document.getElementById('ossfile').innerHTML += '<div id="' + file.id + '">' + file.name + ' (' + plupload.formatSize(file.size) + ')<b></b>'
				+'<div class="progress"><div class="progress-bar" style="width: 0%"></div></div>'
				+'</div>';
			});
            set_upload_param(up, '', false);
		},

		BeforeUpload: function(up, file) {
            set_upload_param(up, file.name, true);
        },

		UploadProgress: function(up, file) {
			var d = document.getElementById(file.id);
			d.getElementsByTagName('b')[0].innerHTML = '<span>' + file.percent + "%</span>";
            var prog = d.getElementsByTagName('div')[0];
			var progBar = prog.getElementsByTagName('div')[0]
			progBar.style.width= 2*file.percent+'px';
			progBar.setAttribute('aria-valuenow', file.percent);
		},

		FileUploaded: function(up, file, info) {
            if (info.status == 200)
            {
                document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = '文件已经上传成功';
                document.getElementById('selectfiles').style.display="none";
            }
            else if (info.status == 203)
            {
                document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = '上传成功，但是oss访问用户设置的上传回调服务器失败，失败原因是:' + info.response;
            }
            else
            {
                document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = info.response;
            } 
		},

		Error: function(up, err) {
			debugger;
            if (err.code == -600) {
                document.getElementById('console').appendChild(document.createTextNode("\n上传的文件太大了,最大允许上传"+max_file_size+"MB"));
            }
            else if (err.code == -601) {
                document.getElementById('console').appendChild(document.createTextNode("\n选择的文件类型不正确"));
            }
            else if (err.code == -602) {
                document.getElementById('console').appendChild(document.createTextNode("\n选择文件重复"));
            }
            else 
            {
                document.getElementById('console').appendChild(document.createTextNode("\nError xml:" + err.response));
            }
		}
	}
});
uploader.init();


//console.log( uploader.settings.filters.max_file_size);