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auth.js
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auth.js
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/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
var onem2mParser, responder, crypto, db, db_sql;
function check_head_auth(request, response, callback) {
// Check Authorization Header
var ip = request.headers['x-forwarded-for'] || request.connection.remoteAddress;
var agent = request.headers['user-agent'];
//logger.log("debug",'>>>>>>>ip:',ip, ip.indexOf("127.0.0.1"), request.url);
if (agent==undefined) {
// it happens when locally invoked
//logger.log("debug",'>>>>>>>NO user-agent!!!!!!!!!!!!');
callback('1');
return '1';
} else {
// external request
//logger.log("debug",'>>>>>>>user-agent:',agent);
}
if ((request.headers['authorization'] == null || request.headers['authorization'] == '')) {
request.headers.rootnm = 'dbg';
request.headers.usebodytype = 'json';
responder.error_result(request, response, 401, 4001, 'Authorization Header is null');
callback('0');
return '0';
} else {
// auth header present
var context = request.url.split(/[?#]/)[0].replace("/"+usecsebase+"/", "").split("/")[0];
var auth = request.headers['authorization'].replace("Basic ", "").trim();
auth = new Buffer(auth, 'base64').toString();
//logger.log("debug",'>>>>>>>auth: ',request.headers['authorization'],auth,"context:",context,"url:",request.url);
var usr_parts = auth.split(":");
//logger.log("debug",'>>>>>>>usr_parts: ',usr_parts);
if (usr_parts.length!=2) {
responder.error_result(request, response, 401, 4001, 'Unauthorized');
callback('0');
return '0';
}
// superadm_usr
if (usr_parts[0]==superadm_usr && usr_parts[1]==superadm_pwd) {
//logger.log("debug",'>>>>>>>user: SUPERADMIN');
callback('1');
return '1';
}
// check other users
if (request.url=="/"+usecsebase) {
// root not accessible for other users
responder.error_result(request, response, 401, 4001, 'Unauthorized');
callback('0');
return '0';
}
var pwd_hash = crypto.createHash('sha256').update(usr_parts[1]).digest('base64');
db_sql.get_user(usr_parts[0],
function (user_Obj) {
logger.log("debug",'>>>>>>>user: ',user_Obj);
if (user_Obj==null || (Array.isArray(user_Obj) && user_Obj.length==0)) {
// user not present
responder.error_result(request, response, 401, 4001, 'Unauthorized');
callback('0');
return '0';
} else if (user_Obj[0].password!=pwd_hash) {
// password not match
responder.error_result(request, response, 401, 4001, 'Unauthorized');
callback('0');
return '0';
} else {
logger.log("debug",'>>>>>>>user2: ',user_Obj,"url:",request.url);
// ok user present
if (user_Obj[0].role=="tenant") {
if (user_Obj[0].context.indexOf(context)!=-1 && context) {
// ok, context enabled fot this user
callback('1');
return '1';
} else {
// context not match
responder.error_result(request, response, 403, 4003, 'Forbidden');
callback('0');
return '0';
}
} else if (user_Obj[0].role=="guest") {
logger.log("debug",'>>>>>>>user: ',request.url, user_Obj);
var uris = user_Obj[0].context.split(","), test = false;
for (var k in uris) {
// if (request.url.indexOf(uris[k])==0) test = true;
if (request.url == uris[k]) {
test = true;
break;
} else if (match(request.url, uris[k])) {
test = true;
break;
}
}
if (test) {
// ok, context enabled fot this user
if (request.method=="POST") {
try {
var content_type = request.headers['content-type'].split(';');
}
catch (e) {
responder.error_result(request, response, 400, 4000, 'content-type is null');
callback('0');
return '0';
}
try {
var ty = content_type[1].split('=')[1];
}
catch (e) {
responder.error_result(request, response, 400, 4000, 'ty is null');
callback('0');
return '0';
}
if (ty=='4' || ty=='23') {
// ok, context and POST CIN, SUB enabled fot this guest
callback('1');
return '1';
} else {
responder.error_result(request, response, 415, 4015, 'You are not enabled to create resource of this type');
callback('0');
return '0';
}
} else if (request.method=="GET") {
callback('1');
return '1';
} else {
responder.error_result(request, response, 405, 4005, 'Method Not Allowed');
callback('0');
return '0';
}
} else {
// context not match
responder.error_result(request, response, 403, 4003, 'Forbidden');
callback('0');
return '0';
}
}
}
}
);
}
function match(txt, regularExpression) {
var re1 = new RegExp('^'+regularExpression+'/');
var re2 = new RegExp('^'+regularExpression+'?');
return re1.test(txt) || re2.test(txt);
}
}
module.exports = {};
module.exports.check_head_auth = check_head_auth;
module.exports.init = function(deps){
console.log('[auth].init');
// dependencies
onem2mParser = deps.onem2mParser;
responder = deps.responder;
crypto = deps.crypto;
db_sql = deps.db_sql;
db = deps.db;
logger = deps.logger;
}