249 lines
8.5 KiB
JavaScript
249 lines
8.5 KiB
JavaScript
var express = require("express");
|
|
var bodyParser = require("body-parser");
|
|
var cookieParser = require('cookie-parser');
|
|
var multer = require("multer");
|
|
var PropertiesReader = require('properties-reader');
|
|
var properties = PropertiesReader('./properties.file');
|
|
var TinyURL = require('tinyurl');
|
|
var app = express();
|
|
var http = null;
|
|
|
|
if(properties.get('ssl')) {
|
|
http = require("https");
|
|
} else {
|
|
http = require("http");
|
|
}
|
|
|
|
|
|
// Properties
|
|
var auth = properties.get('userInfoUrl');
|
|
var originServer = properties.get('originServer');
|
|
var allowPostRequests = properties.get('post.allowed').split(',');
|
|
var localPath = properties.get('localPath');
|
|
var maxsize = properties.get('photo.size')*1024;
|
|
|
|
var storage = multer.diskStorage({
|
|
destination: function (req, file, cb) {
|
|
cb(null, 'uploads')
|
|
},
|
|
filename: function (req, file, cb) {
|
|
if(req.params.id) {
|
|
cb(null, req.params.id + '-' + new Date().getTime() + '.' + file.originalname.split('.').pop());
|
|
} else {
|
|
cb(null, file.originalname);
|
|
}
|
|
}
|
|
});
|
|
|
|
var upload = multer({ storage: storage })
|
|
|
|
app.use(bodyParser.json());
|
|
app.use(bodyParser.urlencoded({extended: true}));
|
|
app.use(cookieParser());
|
|
|
|
app.use(function (req, res, next) {
|
|
if((req.method === 'POST' || req.method === 'DELETE') && allowPostRequests.indexOf(req.url) === -1) {
|
|
if(checkCookies(req)) {
|
|
res.header('Access-Control-Allow-Origin', req.headers.origin);
|
|
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept, x-xsrf-token');
|
|
res.header('Access-Control-Allow-Credentials', true);
|
|
next();
|
|
} else {
|
|
res.header('Access-Control-Allow-Origin', '*');
|
|
res.header('Access-Control-Allow-Credentials', true);
|
|
res.header('Vary', 'Origin');
|
|
res.status(403).send(getResponse(403, "Forbidden: You don't have permission to access. Maybe you are not registered."));
|
|
}
|
|
} else if(req.method === 'OPTIONS' && allowPostRequests.indexOf(req.url) === -1){
|
|
res.header('Access-Control-Allow-Origin', req.headers.origin);
|
|
res.header('Access-Control-Allow-Credentials', true);
|
|
res.header('Access-Control-Allow-Methods', 'POST, DELETE');
|
|
res.header('Access-Control-Max-Age', 1800);
|
|
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept, x-xsrf-token');
|
|
next();
|
|
} else {
|
|
res.header('Access-Control-Allow-Origin', req.headers.origin);
|
|
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
|
|
next();
|
|
}
|
|
});
|
|
|
|
app.post("/upload", upload.array("uploads[]", 12), function (req, res) {
|
|
var filepath = (localPath?".":__dirname)+"/" + req.files[0].path;
|
|
if (req.files[0].mimetype !== 'text/csv') {
|
|
console.error("No proper file type");
|
|
res.status(500).send(getResponse(500, "No proper file type"));
|
|
} else {
|
|
res.download(filepath);
|
|
setTimeout(function() {
|
|
deleteFile(filepath);
|
|
}, 3000);
|
|
// deleteFile(filepath);
|
|
}
|
|
|
|
});
|
|
|
|
app.post('/upload/:id', upload.single('photo'), (req, res) => {
|
|
const token = req.headers['x-xsrf-token'];
|
|
const file = req.file;
|
|
var filepath = (localPath?".":__dirname)+"/" + file.path;
|
|
console.log(filepath);
|
|
if(!token) {
|
|
res.status(401).send(getResponse(401, "Unauthorized"));
|
|
deleteFile(filepath);
|
|
}
|
|
else if (!file || (file.mimetype !== 'image/jpeg' && file.mimetype !== 'image/png')) {
|
|
res.status(500).send(getResponse(500, "No image file type"));
|
|
deleteFile(filepath);
|
|
}
|
|
else if (file.size > maxsize) {
|
|
res.status(500).send(getResponse(500, "Exceeds file size limit"));
|
|
deleteFile(filepath);
|
|
}
|
|
else {
|
|
http.get(auth+token, function (resp) {
|
|
var responseString = "";
|
|
resp.on("data", function (data) {
|
|
responseString += data;
|
|
});
|
|
resp.on("end", function () {
|
|
var result = JSON.parse(responseString);
|
|
if(result.error) {
|
|
res.status(401).send(getResponse(401, "Unauthorized"));
|
|
deleteFile(filepath);
|
|
} else {
|
|
// if user id contains id param or is Admin or Curator keep file and send information, else delete it.
|
|
if(result.sub.indexOf(req.params.id) !== -1 || isAdminOrCurator(result.edu_person_entitlements)) {
|
|
res.send(file);
|
|
} else {
|
|
res.status(401).send(getResponse(401, "Unauthorized"));
|
|
deleteFile(filepath);
|
|
}
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
});
|
|
|
|
app.get('/download/:filename', function (req, res) {
|
|
res.download('./uploads/' + req.params.filename);
|
|
});
|
|
|
|
app.get('/tiny', function (req, res) {
|
|
TinyURL.shorten(req.query.url, function(res1, err) {
|
|
if (err)
|
|
console.log(err)
|
|
if(res1 !== 'Error') {
|
|
res.send(res1);
|
|
} else {
|
|
res.send(req.query.url);
|
|
}
|
|
});
|
|
});
|
|
|
|
app.delete('/delete/:filename', function (req, res) {
|
|
const token = req.headers['x-xsrf-token'];
|
|
if(!token) {
|
|
res.status(401).send(getResponse(401, "Unauthorized"));
|
|
} else {
|
|
http.get(auth+token, function (resp) {
|
|
var responseString = "";
|
|
resp.on("data", function (data) {
|
|
responseString += data;
|
|
});
|
|
resp.on("end", function () {
|
|
var result = JSON.parse(responseString);
|
|
if(result.error) {
|
|
res.status(401).send(getResponse(401, "Unauthorized"));
|
|
} else {
|
|
// if user id is on filename or is Admin delete file else unauthorized.
|
|
if(result.sub.indexOf(req.params.filename.split('-')[0]) !== -1 || isAdminOrCurator(result.edu_person_entitlements)) {
|
|
deleteFile('./uploads/' + req.params.filename);
|
|
return res.status(200).send(getResponse(200, "File Deleted Successfully"));
|
|
} else {
|
|
res.status(401).send(getResponse(401, "Unauthorized"));
|
|
}
|
|
}
|
|
});
|
|
});
|
|
}
|
|
});
|
|
|
|
const server = app.listen(8000, function () {
|
|
console.log("Listening on port %s...", server.address().port);
|
|
});
|
|
|
|
function getResponse(code, message) {
|
|
var response = {};
|
|
response["code"] = code;
|
|
response["message"] = message;
|
|
return response;
|
|
}
|
|
|
|
function deleteFile(filepath) {
|
|
const fs = require('fs');
|
|
fs.stat(filepath, function (err, stats) {
|
|
console.log(stats); //here we got all information of file in stats variable
|
|
|
|
if (err) {
|
|
return console.error(err);
|
|
}
|
|
|
|
fs.unlink(filepath, function (err) {
|
|
if (err) return console.log(err);
|
|
console.log('file deleted successfully');
|
|
});
|
|
});
|
|
}
|
|
|
|
function isAdminOrCurator(roles) {
|
|
var isAdmin = false;
|
|
var isCurator = false;
|
|
for(var i = 0; i < roles.length; i++) {
|
|
if(roles[i] === 'urn:geant:openaire.eu:group:Portal+Administrator#aai.openaire.eu') {
|
|
isAdmin = true;
|
|
}
|
|
if(roles[i] === 'urn:geant:openaire.eu:group:Curator+-+Community#aai.openaire.eu') {
|
|
isCurator = true;
|
|
}
|
|
}
|
|
return isAdmin || isCurator;
|
|
}
|
|
|
|
function checkCookies(request){
|
|
var valid = true;
|
|
var cookieValue = request.cookies.AccessToken;
|
|
if(cookieValue === undefined || cookieValue === ''){
|
|
console.log("no cookie available");
|
|
valid = false;
|
|
} else {
|
|
const headerValue = request.headers['x-xsrf-token'];
|
|
if(headerValue === undefined || headerValue === ''){
|
|
console.log("no header available");
|
|
valid = false;
|
|
} else{
|
|
if(cookieValue !== headerValue){
|
|
console.log("no proper header or cookie");
|
|
valid = false;
|
|
} else if(!hasValidOrigin(request.headers.origin)){
|
|
console.log("no proper origin");
|
|
valid = false;
|
|
}
|
|
}
|
|
}
|
|
return valid;
|
|
}
|
|
|
|
|
|
function hasValidOrigin(origin) {
|
|
if(origin !== undefined && origin.indexOf(originServer) !== -1) {
|
|
return true;
|
|
} else {
|
|
console.log("Not valid origin. Origin server is \"" + origin +
|
|
"\", but expected value is \"" + originServer +
|
|
"\". If the expected value is not right, check originServer variable.");
|
|
return false;
|
|
}
|
|
}
|