dylan.derr/Send
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added multiple download option

Browse source
This commit is contained in:
Danny Coates 2017-11-30 13:41:09 -08:00
parent beb3a6e67b
commit 7b4060f9e1
No known key found for this signature in database
GPG key ID: 4C442633C62E00CB
22 changed files with 1159 additions and 453 deletions
Download patch file Download diff file Expand all files Collapse all files

62
app/fileReceiver.js
View file

@ -116,7 +116,8 @@ export default class FileReceiver extends Nanobus {
// TODO
}
fetchMetadata(sig) {
async fetchMetadata(nonce) {
const authHeader = await this.getAuthHeader(nonce);
return new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest();
xhr.onreadystatechange = () => {
@ -132,7 +133,7 @@ export default class FileReceiver extends Nanobus {
xhr.onerror = () => reject(new Error(0));
xhr.ontimeout = () => reject(new Error(0));
xhr.open('get', `/api/metadata/${this.file.id}`);
xhr.setRequestHeader('Authorization', `send-v1 ${arrayToB64(sig)}`);
xhr.setRequestHeader('Authorization', authHeader);
xhr.responseType = 'json';
xhr.timeout = 2000;
xhr.send();
@ -140,16 +141,16 @@ export default class FileReceiver extends Nanobus {
}
async getMetadata(nonce) {
let data = null;
try {
const authKey = await this.authKeyPromise;
const sig = await window.crypto.subtle.sign(
{
name: 'HMAC'
},
authKey,
b64ToArray(nonce)
);
const data = await this.fetchMetadata(new Uint8Array(sig));
try {
data = await this.fetchMetadata(nonce);
} catch (e) {
if (e.message === '401') {
// allow one retry for changed nonce
data = await this.fetchMetadata(e.nonce);
}
}
const metaKey = await this.metaKeyPromise;
const json = await window.crypto.subtle.decrypt(
{
@ -174,7 +175,8 @@ export default class FileReceiver extends Nanobus {
}
}
downloadFile(sig) {
async downloadFile(nonce) {
const authHeader = await this.getAuthHeader(nonce);
return new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest();
@ -190,9 +192,10 @@ export default class FileReceiver extends Nanobus {
reject(new Error('notfound'));
return;
}
if (xhr.status !== 200) {
return reject(new Error(xhr.status));
const err = new Error(xhr.status);
err.nonce = xhr.getResponseHeader('WWW-Authenticate').split(' ')[1];
return reject(err);
}
const blob = new Blob([xhr.response]);
@ -205,26 +208,37 @@ export default class FileReceiver extends Nanobus {
};
xhr.open('get', this.url);
xhr.setRequestHeader('Authorization', `send-v1 ${arrayToB64(sig)}`);
xhr.setRequestHeader('Authorization', authHeader);
xhr.responseType = 'blob';
xhr.send();
});
}
async getAuthHeader(nonce) {
const authKey = await this.authKeyPromise;
const sig = await window.crypto.subtle.sign(
{
name: 'HMAC'
},
authKey,
b64ToArray(nonce)
);
return `send-v1 ${arrayToB64(new Uint8Array(sig))}`;
}
async download(nonce) {
this.state = 'downloading';
this.emit('progress', this.progress);
try {
const encryptKey = await this.encryptKeyPromise;
const authKey = await this.authKeyPromise;
const sig = await window.crypto.subtle.sign(
{
name: 'HMAC'
},
authKey,
b64ToArray(nonce)
);
const ciphertext = await this.downloadFile(new Uint8Array(sig));
let ciphertext = null;
try {
ciphertext = await this.downloadFile(nonce);
} catch (e) {
if (e.message === '401') {
ciphertext = await this.downloadFile(e.nonce);
}
}
this.msg = 'decryptingFile';
this.emit('decrypting');
const plaintext = await window.crypto.subtle.decrypt(