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refactoring code

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Abhinav Adduri 2017-06-01 13:14:14 -07:00 • committed by Danny Coates
parent e3611ded17
commit c539ed6282
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GPG key ID: 4C442633C62E00CB
5 changed files with 225 additions and 95 deletions
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184
public/upload.js
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@ -1,101 +1,105 @@
function onChange(event) {
var file = event.target.files[0];
var reader = new FileReader();
reader.readAsArrayBuffer(file);
let random_iv = window.crypto.getRandomValues(new Uint8Array(16));
var hex = ivToStr(random_iv);
reader.onload = function(event) {
let self = this;
window.crypto.subtle
.generateKey(
{
name: 'AES-CBC',
length: 128
},
true,
['encrypt', 'decrypt']
)
.then(function(key) {
var arrayBuffer = self.result;
var array = new Uint8Array(arrayBuffer);
window.crypto.subtle.generateKey({
name: "AES-CBC",
length: 128
},
true,
["encrypt", "decrypt"])
.then((key) => {
let arrayBuffer = self.result;
let array = new Uint8Array(arrayBuffer);
var random_iv = window.crypto.getRandomValues(new Uint8Array(16));
window.crypto.subtle.encrypt({
name: "AES-CBC",
iv: random_iv },
key,
array)
.then(uploadFile.bind(null, file, hex, key))
.catch((err) => console.error(err));
window.crypto.subtle
.encrypt(
{
name: 'AES-CBC',
iv: random_iv
},
key,
array
)
.then(function(encrypted) {
var dataView = new DataView(encrypted);
var blob = new Blob([dataView], { type: file.type });
var fd = new FormData();
fd.append('fname', file.name);
fd.append('data', blob, file.name);
var xhr = new XMLHttpRequest();
var hex = ivToStr(random_iv);
xhr.open('post', '/upload/' + hex, true);
var li = document.createElement('li');
var name = document.createElement('p');
name.innerHTML = file.name;
li.appendChild(name);
var link = document.createElement('a');
li.appendChild(link);
var progress = document.createElement('p');
li.appendChild(progress);
document.getElementById('uploaded_files').appendChild(li);
xhr.upload.addEventListener(
'progress',
returnBindedLI(progress, name, link, li)
);
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE) {
window.crypto.subtle
.exportKey('jwk', key)
.then(function(keydata) {
var curr_name = localStorage.getItem(file.name);
localStorage.setItem(hex, xhr.responseText);
link.innerHTML =
'http://localhost:3000/download/' +
hex +
'/#' +
keydata.k;
link.setAttribute(
'href',
'http://localhost:3000/download/' + hex + '/#' + keydata.k
);
console.log(
'Share this link with a friend: http://localhost:3000/download/' +
hex +
'/#' +
keydata.k
);
});
}
};
xhr.send(fd);
})
.catch(function(err) {
console.error(err);
});
})
.catch(function(err) {
console.error(err);
});
}).catch((err) => console.error(err));
};
reader.readAsArrayBuffer(file);
}
let uploadFile = (file, hex, key, encrypted) => {
var dataView = new DataView(encrypted);
var blob = new Blob([dataView], { type: file.type });
var fd = new FormData();
fd.append("fname", file.name);
fd.append("data", blob, file.name);
var xhr = new XMLHttpRequest();
xhr.open("post", "/upload/" + hex, true);
let prog = new window.ProgressEmitter(file.name, hex, file.type);
var li = document.createElement("li");
var name = document.createElement("p");
name.innerHTML = file.name;
li.appendChild(name);
var link = document.createElement("a");
li.appendChild(link);
var progress = document.createElement("p");
li.appendChild(progress);
document.getElementById("uploaded_files").appendChild(li);
xhr.upload.addEventListener("progress", returnBindedLI(progress, name, link, li));
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE) {
window.crypto.subtle.exportKey("jwk", key).then(function(keydata) {
var curr_name = localStorage.getItem(file.name);
localStorage.setItem(hex, xhr.responseText);
prog.link = "http://localhost:3000/download/" + hex + "/#" + keydata.k;
prog.emit();
link.innerHTML = "http://localhost:3000/download/" + hex + "/#" + keydata.k;
link.setAttribute("href", "http://localhost:3000/download/" + hex + "/#" + keydata.k);
console.log("Share this link with a friend: http://localhost:3000/download/" + hex + "/#" + keydata.k);
})
}
};
xhr.send(fd);
// setupLI(file.name);
}
function setupLI(emitter) {
var li = document.createElement("li");
var name = document.createElement("p");
name.innerHTML = emitter;
li.appendChild(name);
var link = document.createElement("a");
link.addEventListener('NotifyProgress', (progress_event) => {
console.log(progress_event);
});
li.appendChild(link);
var progress = document.createElement("p");
li.appendChild(progress);
document.getElementById("uploaded_files").appendChild(li);
}
function ivToStr(iv) {