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server.js
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server.js
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var Evt = require('evt');
var File = null;
var http = require('http');
var url = require('url');
var path = require('path');
var fs = require('fs');
var Common = require('common');
// http server, 处理笔记图片
var Server = {
// port: 8008,
// localUrl: 'http://127.0.0.1:8008',
_started: false,
_req: null,
mime: {
"css": "text/css",
"gif": "image/gif",
"html": "text/html",
"ico": "image/x-icon",
"jpeg": "image/jpeg",
"jpg": "image/jpeg",
"js": "text/javascript",
"json": "application/json",
"pdf": "application/pdf",
"png": "image/png",
"svg": "image/svg+xml",
"swf": "application/x-shockwave-flash",
"tiff": "image/tiff",
"txt": "text/plain",
"wav": "audio/x-wav",
"wma": "audio/x-ms-wma",
"wmv": "video/x-ms-wmv",
"xml": "text/xml"
},
server: null,
start: function() {
var me = this;
if(me._started) {
return;
}
// return;
var basePath = process.cwd();
var server = http.createServer(function (request, response) {
var pathname = url.parse(request.url).pathname;
me._req = request;
if(!pathname) {
return me.e404(response);
}
while(pathname[0] == '/') {
pathname = pathname.substr(1);
}
if(pathname == 'api/file/getImage') {
return me.getImage(request, response);
} else {
response.end();
return false;
}
var realPath = basePath + pathname;
var ext = path.extname(realPath);
ext = ext ? ext.slice(1) : 'unknown';
fs.exists(realPath, function (exists) {
if (!exists) {
response.writeHead(404, {
'Content-Type': 'text/plain'
});
response.write("This request URL " + pathname + " was not found on this server.");
response.end();
} else {
fs.readFile(realPath, "binary", function (err, file) {
if (err) {
response.writeHead(500, {
'Content-Type': 'text/plain'
});
response.end(err);
} else {
var contentType = me.mime[ext] || "text/plain";
response.writeHead(200, {'Content-Type': contentType});
response.write(file, "binary");
response.end();
}
});
}
});
});
// kill 端口占用的pid
var child_process = require('child_process');
function killPort(callback) {
if (Common.isWin()) {
// & EXIT 表示只循环一次
// Leanote会有两个pid绑定端口, 另一个和electron相关, kill掉也会把自己kill掉
var sh1 = 'FOR /F "tokens=4 delims= " %P IN (\'netstat -a -n -o ^| findstr :' + Evt.port + '\') DO (TaskKill.exe /F /PID %P) & Exit';
var sh2 = 'FOR /F "tokens=5 delims= " %P IN (\'netstat -a -n -o ^| findstr :' + Evt.port + '\') DO (TaskKill.exe /F /PID %P) & Exit';
child_process.exec(sh1, function () {
child_process.exec(sh2, callback);
});
}
else {
var sh = 'kill -9 $(lsof -i:' + Evt.port + ' -t)';
child_process.exec(sh, callback);
}
}
killPort(function (error, stdout, stderr) {
if (error !== null) {
console.log('kill port error: ' + error);
}
server.listen(Evt.port);
console.log("Server runing at port: " + Evt.port + ".");
me.localUrl = Evt.localUrl;
me._started = true;
me.server = server;
});
},
// 关闭服务
close: function() {
this.server.close(function(err) {
});
console.log('close');
this._started = false;
},
e404: function(res) {
var me = this;
res.writeHead(404, {
'Content-Type': 'text/plain'
});
res.write("This request URL " + me._req.url + " was not found on this server.");
res.end();
},
// 返回图片
retImage: function(filePath, res) {
var me = this;
var ext = path.extname(filePath);
ext = ext ? ext.slice(1) : 'unknown';
filePath = filePath + '';
fs.readFile(filePath, "binary", function (err, file) {
if (err) {
res.writeHead(500, {
'Content-Type': 'text/plain'
});
res.end();
} else {
var contentType = me.mime[ext] || "text/plain";
res.writeHead(200, {'Content-Type': contentType});
res.write(file, "binary");
res.end();
}
});
},
getImage: function(req, res) {
var me = this;
// fileId
var fileId = url.parse(req.url, true).query['fileId'];
if(!fileId) {
return me.e404(res);
}
if(!File) {
File = require('file');
}
File.getImage(fileId, function(fileLocalPath) {
if(path) {
return me.retImage(fileLocalPath, res);
} else {
return me.e404(res);
}
})
}
};
module.exports = Server;