101 lines
3.0 KiB
JavaScript
101 lines
3.0 KiB
JavaScript
(function(){
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fs = {};
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var postsomething = function (data,_ip,callback) {
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//callback:function(err, data)
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//data:字符串
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var xhr = new XMLHttpRequest();
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xhr.onreadystatechange = function(){
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switch(xhr.readyState){
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case 4 :
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if ((xhr.status >= 200 && xhr.status < 300) || xhr.status == 304) {
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if (Boolean(callback)){
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if (xhr.responseText.slice(0,6)=='error:'){
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callback(xhr.responseText,null);
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} else {
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callback(null,xhr.responseText);
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}
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}
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//printf(xhr.responseText)
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}else{
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if (Boolean(callback))callback(xhr.status,null);
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//printf('error:' + xhr.status+'<br>'+(xhr.responseText||''));
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}
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break;
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}
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}
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xhr.open('post',_ip);
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xhr.setRequestHeader('Content-Type','text/plain');
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if(typeof(data)==typeof([][0]) || data==null)data=JSON.stringify({1:2});
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xhr.send(data);
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}
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fs.readFile = function (filename,encoding,callback) {
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if (typeof(filename)!=typeof(''))
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throw 'Type Error in fs.readFile';
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if (encoding=='utf-8'){
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//读文本文件
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//filename:支持"/"做分隔符
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//callback:function(err, data)
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//data:字符串
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var data='';
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data+='type=utf8&';
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data+='name='+filename;
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postsomething(data,'/readFile',callback);
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return;
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}
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if (encoding=='base64'){
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//读二进制文件
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//filename:支持"/"做分隔符
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//callback:function(err, data)
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//data:base64字符串
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var data='';
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data+='type=base64&';
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data+='name='+filename;
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postsomething(data,'/readFile',callback);
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return;
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}
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throw 'Type Error in fs.readFile';
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}
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fs.writeFile = function (filename,datastr,encoding,callback) {
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if (typeof(filename)!=typeof('') || typeof(datastr)!=typeof(''))
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throw 'Type Error in fs.writeFile';
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if (encoding=='utf-8'){
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//写文本文件
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//filename:支持"/"做分隔符
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//callback:function(err)
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//datastr:字符串
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var data='';
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data+='type=utf8&';
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data+='name='+filename;
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data+='&value='+datastr;
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postsomething(data,'/writeFile',callback);
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return;
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}
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if (encoding=='base64'){
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//写二进制文件
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//filename:支持"/"做分隔符
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//callback:function(err)
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//datastr:base64字符串
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var data='';
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data+='type=base64&';
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data+='name='+filename;
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data+='&value='+datastr;
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postsomething(data,'/writeFile',callback);
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return;
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}
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throw 'Type Error in fs.writeFile';
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}
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fs.readdir = function (path, callback) {
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//callback:function(err, data)
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//path:支持"/"做分隔符,不以"/"结尾
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//data:[filename1,filename2,..] filename是字符串,只包含文件不包含目录
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if (typeof(path)!=typeof(''))
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throw 'Type Error in fs.readdir';
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var data='';
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data+='name='+path;
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postsomething(data,'/listFile',function(err, data){callback(err,JSON.parse(data))});
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return;
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}
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})(); |