cloudcmd/lib/server/rest.js
2013-07-30 11:41:32 +00:00

366 lines
13 KiB
JavaScript

/* RESTfull module */
(function(){
'use strict';
if(!global.cloudcmd)
return console.log(
'# rest.js' + '\n' +
'# -----------' + '\n' +
'# Module is part of Cloud Commander,' + '\n' +
'# used for work with REST API.' + '\n' +
'# If you wont to see at work set rest: true' + '\n' +
'# and api_url in config.json' + '\n' +
'# http://coderaiser.github.com/cloudcmd' + '\n');
var main = global.cloudcmd.main,
fs = main.fs,
path = main.path,
Util = main.util,
CloudFunc = main.cloudfunc,
dir = main.dir,
OK = 200,
Header = main.generateHeaders({
name:'api.json'
});
/**
* rest interface
* @pParams {request, responce}
*/
exports.api = function(pParams){
var lRet = main.checkParams(pParams);
if(lRet){
var lAPIURL = main.config.api_url,
p = pParams;
lRet = Util.isContainStr(p.name, lAPIURL);
if( lRet ){
p.name = Util.removeStrOneTime(p.name, lAPIURL);
sendData( pParams);
}
}
return lRet;
};
/**
* send data
*
* @param pRes
* @param pData
*/
function send(pParams){
var lRes = pParams.response,
lData = pParams.data;
lRes.writeHead(OK, Header);
lRes.end( Util.stringifyJSON(lData) );
}
/**
* getting data on method and command
*
* @param pParams {command, method, body, requrest, response}
*/
function sendData(pParams){
var p, lRet = main.checkParams(pParams);
if(lRet){
p = pParams;
lRet = Util.isContainStrAtBegin(p.name, CloudFunc.FS);
if (lRet)
onFS(pParams);
else {
if(p.name[0] === '/')
p.command = Util.removeStrOneTime(p.name, '/');
switch(p.request.method){
case 'GET':
lRet = onGET(pParams);
break;
case 'PUT':
getBody(p.request, function(pBody){
p.body = pBody;
onPUT(p);
});
break;
}
}
}
return lRet;
}
function onFS(pParams){
var p, lError, lWriteStream, lSize, lQuery,
lRet = main.checkParams(pParams);
if(lRet){
p = pParams,
lQuery = main.getQuery(p.request);
p.name = Util.removeStrOneTime(p.name, CloudFunc.FS) || '/';
switch(p.request.method){
case 'GET':
if( Util.strCmp(lQuery, 'size') )
dir.getSize(p.name, function(pErr, pSize){
if (!pErr){
lSize = CloudFunc.getShortSize(pSize);
Util.log(lSize);
main.sendResponse(p, lSize);
}
else
main.sendError(p, pErr);
});
else
fs.stat(p.name, function(pError, pStat){
if(!pError)
if( pStat.isDirectory() )
main.commander.getDirContent(p.name, function(pError, pData){
if(!pError){
p.name += '.json';
p.data = Util.stringifyJSON(pData);
main.sendResponse(p);
}
else
main.sendError(p, pError);
});
else
main.sendFile(p);
else
main.sendError(p, pError);
});
break;
case 'PUT':
if (lQuery === 'dir')
fs.mkdir(p.name, function(pError){
if(!pError)
main.sendResponse(pParams, 'Folder ' + p.name + ' created.');
else
main.sendError(pParams, pError);
});
else {
lWriteStream = fs.createWriteStream(p.name);
lError = function(pError) {
main.sendError(pParams, pError);
};
lWriteStream.on('error', lError);
p.request.on('error', lError);
lWriteStream.on('open', function() {
p.request.pipe(lWriteStream);
//p.request.pipe(process.stdout);
p.request.on('end', function() {
var lName = path.basename(p.name);
main.sendResponse(pParams, 'save: ok("' + lName +'")');
});
});
}
break;
case 'DELETE':
if(lQuery === 'dir')
fs.rmdir(p.name, function(pError){
if(!pError)
main.sendResponse(pParams, 'Folder ' + p.name + ' deleted.');
else
main.sendError(pParams, pError);
});
else if(lQuery === 'files'){
getBody(p.request, function(pBody){
var lFiles = Util.parseJSON(pBody),
n = lFiles.length,
lDir = p.name,
log = Util.retExec(Util.log),
lAssync = 0;
function stat(pStat){
var lRet = Util.checkObjTrue(pStat, 'params') &&
Util.checkObjTrue(pStat.params, 'name');
if(lRet){
var p = pStat,
d = p.params;
++lAssync;
if( p.error ){
main.sendError(pParams, p.error);
Util.log(p.error);
}
else
if(p.data.isDirectory())
fs.rmdir(d.name, log);
else if(p.data.isFile())
fs.unlink(d.name, log);
if(lAssync === n && !p.error)
main.sendResponse(pParams, 'Files deleted: ' + pBody);
}
}
for(var i = 0; i < n; i ++){
var lName = lDir + lFiles[i];
Util.log(lName);
fs.stat(lName, Util.call(stat, {
name: lName
}));
}
});
}else
fs.unlink(p.name, function(pError){
if(!pError)
main.sendResponse(pParams, 'File ' + p.name + ' delete.');
else
main.sendError(pParams, pError);
});
break;
}
}
return lRet;
}
/**
* process data on GET request
*
* @param pParams {command, method, body, requrest, response}
*/
function onGET(pParams){
var lRet = main.checkParams(pParams);
if(lRet){
var p = pParams,
lCmd = p.command;
switch(lCmd){
case '':
p.data = {
info: 'Cloud Commander API v1'
};
send(p);
break;
case 'proxy':
break;
case 'zip':
main.sendFile(pParams);
break;
case 'kill':
p.data = {
mesage: 'Cloud Commander was killed'
};
send(p);
break;
default:
p.data = {
error: 'command not found'
};
send(p);
break;
}
}
return lRet;
}
/**
* process data on PUT request
*
* @param pParams {command, method, body, requrest, response}
*/
function onPUT(pParams){
var lRet = main.checkParams(pParams, ['body']);
if(lRet){
var p = pParams,
lCmd = p.command,
lFiles = Util.parseJSON(p.body);
console.log(p.body);
switch(lCmd){
case 'auth':
main.auth(p.body, function(pTocken){
send({
response: p.response,
data: pTocken
});
});
break;
case 'cmd':
main.child_process.exec(p.body, function(pError, pStdout, pStderr){
var lError = pError || pStderr;
if(!lError)
main.sendResponse(pParams, pStdout);
else
main.sendError(pParams, lError);
});
break;
case 'mv':
if( Util.checkObjTrue(lFiles, ['from', 'to']) )
fs.rename(lFiles.from, lFiles.to, function(pError){
if(!pError)
main.sendResponse(pParams);
else
main.sendError(pParams, pError);
});
else
main.sendError(pParams, p.data);
break;
case 'cp':
if( Util.checkObjTrue(lFiles, ['from', 'to']) ){
var l = lFiles,
lReadStream = fs.createReadStream(l.from),
lWriteStream = fs.createWriteStream(l.to),
lError = function(pError){
main.sendError(pParams, pError);
};
lWriteStream.on('error', lError);
lReadStream.on('error', lError);
lReadStream.on('end', function(){
main.sendResponse(pParams, 'copied to: ' + l.to);
});
lReadStream.pipe(lWriteStream);
}
else
main.sendError(pParams, p.data);
break;
default:
send(pParams);
break;
}
}
return lRet;
}
/**
* get body of url query
*
* @param pReq
* @param pCallBack
*/
function getBody(pReq, pCallBack){
var lBody = '';
pReq.on('data', function(chunk){
lBody += chunk.toString();
});
pReq.on('end', function() {
Util.exec(pCallBack, lBody);
});
}
})();