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proxy.server.js
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proxy.server.js
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var fs = require('fs'),url = require('url');
const MIMETYPE = {
'html':'text/html',
'htm':'text/html',
'js':'text/javascript',
'png':'image/png',
'css': 'text/css',
'ico': 'image/ico',
'zip': 'application/zip',
'jpeg': 'image/jpeg',
'jpg': 'image/jpeg',
'jpe': 'image/jpeg',
'png': 'image/png',
'gif': 'image/gif',
'csv': 'text/comma-separated-values',
'txt': 'text/plain'
};
const PROXYCONF = './proxy.config.js';
const STATICDIR = './static';
function in_array(obj, arr) {
if(typeof obj == 'string') {
for(var i in arr) {
if(arr[i] == obj) {
return true;
}
}
}
return false;
}
function proxyserver () {
this.reload_config();
}
proxyserver.prototype.config = null;
proxyserver.prototype.reload_config = function() {
this.config = JSON.parse( fs.readFileSync( PROXYCONF ) );
}
proxyserver.prototype.save_config = function() {
fs.writeFileSync(PROXYCONF, JSON.stringify(this.config) );
}
proxyserver.prototype.run = function(request, response) {
var that = this;
var requesturl = url.parse( request.url );
var path = requesturl.path;
if(path == '/') {
path = path + 'index.html';
}
var ext = path.split('.').pop();
// 如果是静态资源
if(MIMETYPE[ext]) {
fs.stat( STATICDIR + path, function(err,stats) {
if(err) {
console.log(err);
that.error_404(response);
}else{
response.writeHead(200, {"Content-Type": MIMETYPE[ext]});
response.write( fs.readFileSync( STATICDIR + path ) );
response.end();
}
});
} else {
var query = require('querystring').parse( requesturl.query );
switch(requesturl.pathname) {
case '/ajax/save':
that.reload_config();
if( that.config[ query['domain'] ] ) {
response.end( JSON.stringify({status:'err', msg:"新增域名: " + query['domain'] + " 已经存在!"}) );
}else{
var ip_str = query['ip'];
if(ip_str.length>0){
var ip_arr = [];
var ip_tmp = ip_str.split(' ');
for(var i=0;i<ip_tmp.length;i++){
if(ip_tmp[i].length>0){
ip_arr.push(ip_tmp[i]);
}
}
that.config[ query['domain'] ] = {ip: ip_arr};
}else{
that.config[ query['domain'] ] = {};
}
that.save_config();
response.end( JSON.stringify({status:'ok', config:that.config}) );
}
break;
case '/ajax/init':
that.reload_config();
response.end( JSON.stringify(that.config) );
break;
case '/ajax/delete':
delete(that.config[ query['domain'] ]);
that.save_config();
response.end( JSON.stringify({status:'ok', config:that.config}) );
break;
case '/ajax/addip':
var domain = query['domain'];
var ip = query['ip'];
if(domain && ip){
if(that.config[ domain ].ip){
if(!in_array(ip, that.config[ domain ].ip)){
that.config[ domain ].ip.push(ip);
}
}else{
that.config[ domain ].ip = [];
that.config[ domain ].ip.push(ip);
}
}
that.save_config();
response.end( JSON.stringify({status:'ok', config:that.config}) );
break;
case '/ajax/setbind':
var domain = query['domain'];
var ip = query['ip'];
var type = query['type'];
if(domain && type){
that.config[ domain ][type] = ip;
}
that.save_config();
response.end( JSON.stringify({status:'ok', config:that.config}) );
break;
case '/ajax/deleteip':
var domain = query['domain'];
var ip = query['ip'];
if(domain && ip && that.config[ domain ].ip && in_array(ip, that.config[ domain ].ip)){
var tmparr = [];
for(var i=0;i<that.config[ domain ].ip.length;i++){
if(that.config[ domain ].ip[i] != ip){
tmparr.push(that.config[ domain ].ip[i]);
}
}
that.config[ domain ].ip = tmparr;
if(that.config[ domain ].bindip && that.config[ domain ].bindip == ip){
that.config[ domain ].bindip = '';
}
if(that.config[ domain ].firefoxip && that.config[ domain ].firefoxip == ip){
that.config[ domain ].firefoxip = '';
}
if(that.config[ domain ].chromeip && that.config[ domain ].chromeip == ip){
that.config[ domain ].chromeip = '';
}
if(that.config[ domain ].ieip && that.config[ domain ].ieip == ip){
that.config[ domain ].ieip = '';
}
}
that.save_config();
response.end( JSON.stringify({status:'ok', config:that.config}) );
break;
}
}
}
proxyserver.prototype.error_404 = function(response) {
response.writeHead( 404, 'Not Found');
response.end("抱歉,您请求的资源不存在。");
}
module.exports = new proxyserver();