103 lines
3.7 KiB
JavaScript
103 lines
3.7 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) {
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callback(err, JSON.parse(data))
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});
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return;
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}
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})(); |