This commit is contained in:
Matéo Duparc 2021-03-20 18:03:47 +01:00
commit 597b9d7a17
Signed by: hardcoresushi
GPG Key ID: 007F84120107191E
38 changed files with 6337 additions and 0 deletions

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Cargo.lock
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[package]
name = "aira"
version = "0.0.1"
authors = ["Hardcore Sushi <hardcore.sushi@disroot.org>"]
edition = "2018"
[dependencies]
rand-8 = {package = "rand", version = "0.8.3"}
rand-7 = {package = "rand", version = "0.7.3"}
tokio = {version = "1", features = ["full"]}
lazy_static = "1.4"
socket2 = "0.4.0"
mio = "0.7"
ed25519-dalek = "1" #for singing
x25519-dalek = "1.1" #for shared secret
sha2 = "0.9.3"
hkdf = "0.10.0"
aes-gcm = "0.8.0"
hmac = "0.10.1"
hex = "0.4.3"
strum_macros = "0.20.1" #display enums
actix-web = "3"
actix-multipart = "0.3"
futures = "0.3"
tungstenite = "0.13.0" #websocket
serde = "1.0.124" #serialization
html-escape = "0.2.7"
dirs = "3.0"
uuid = { version = "0.8", features = ["v4"] }
webbrowser = "0.5.5"
astro-dnssd = "0.2.0" #mDNS advertiser
multicast_dns = "0.5" #mDNS browser
base64 = "0.13.0"
time = "0.2.25"
aes-gcm-siv = "0.9.0"
scrypt = "0.6.3"
zeroize = "1.2.0"
[dependencies.rusqlite]
version = "0.25.0"
features = ["bundled"]

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GNU AFFERO GENERAL PUBLIC LICENSE
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with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer network,
you should also make sure that it provides a way for users to get its source.
For example, if your program is a web application, its interface could display
a "Source" link that leads users to an archive of the code. There are many
ways you could offer source, and different solutions will be better for different
programs; see section 13 for the specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary. For
more information on this, and how to apply and follow the GNU AGPL, see <https://www.gnu.org/licenses/>.

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# AIRA
AIRA is peer-to-peer encrypted communication tool for local networks built on the [PSEC protocol](https://forge.chapril.org/hardcoresushi/PSEC). It allows to securely send text messages and files without any server or Internet access.
<img src="https://forge.chapril.org/hardcoresushi/AIRA/raw/branch/master/screenshot.png">
# Rationale
When people want to send a file from one computer to another located only meters apart, they usually send it via mail. This mail usually goes through many servers around the world before reaching its final destination.
Likewise, when people are lazy, they talk sometimes to their friends in the next room using centralized mobiles apps like Whatsapp. Their messages can be exported thousands of kilometers away to reach Facebook's servers where they are analysed with the aim of offering personalized ads and selling your data before being sent on the same way back to your friend's smartphone.
All this practices generate useless traffic, overload servers, often breach privacy but above all pollute a lot. This is why I decided to build a more ecological and private way to communicate with near devices. There are many awesome P2P projects built on top of the Internet, but none of them provide local-network communications that work even totally disconnected from the rest of the world. AIRA is the first to provide this capability.
# Disclaimer
AIRA is still under developement and is not ready for production usage yet. Not all features have been implemented and bugs are expected. Neither the code or the PSEC protocol received any security audit and therefore shouldn't be considered fully secure. AIRA is provided "as is", without any warranty of any kind.
# Features
- Cross-platform
- End-to-End encryption using the [PSEC protocol](https://forge.chapril.org/hardcoresushi/PSEC)
- Automatic peer discovery using mDNS
- Manual peer connection
- File transferts
- Notifications
- Encrypted database
- Contact verification
- IPv4/v6 compatibility
- Web frontend that directly runs in browser
- Free/Libre and Open Source
# Build
### Install Rust
```
curl --proto '=https' --tlsv1.3 -sSf https://sh.rustup.rs | sh
```
### Download AIRA
```
git clone --depth=1 https://forge.chapril.org/hardcoresushi/AIRA.git && cd AIRA
```
### Build AIRA
```
cargo build --release
```
## What does AIRA stand for ?
AIRA Is a Recursive Acronym.

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pub const PORT: u16 = 7530;
pub const UI_PORT: u16 = 9510;
pub const APPLICATION_FOLDER: &str = "AIRA";
pub const DB_NAME: &str = "AIRA.db";
pub const HTTP_COOKIE_NAME: &str = "aira_auth";
pub const MSG_LOADING_COUNT: usize = 20;

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use std::convert::TryInto;
use hkdf::Hkdf;
use sha2::Sha384;
use hmac::{Hmac, Mac, NewMac};
use scrypt::{scrypt, Params};
use rand_8::{RngCore, rngs::OsRng};
use aes_gcm::{aead::{Aead, generic_array::GenericArray}, NewAead};
use aes_gcm_siv::{Aes256GcmSiv};
use zeroize::Zeroize;
use strum_macros::Display;
use crate::utils::*;
pub const HASH_OUTPUT_LEN: usize = 48; //SHA384
const KEY_LEN: usize = 16;
pub const IV_LEN: usize = 12;
pub const AES_TAG_LEN: usize = 16;
pub const SALT_LEN: usize = 32;
const PASSWORD_HASH_LEN: usize = 32;
pub const MASTER_KEY_LEN: usize = 32;
pub fn iv_to_nonce(iv: &[u8], counter: &mut usize) -> Vec<u8> {
let mut counter_bytes = vec![0; 4];
counter_bytes.extend_from_slice(&counter.to_be_bytes());
let r: Vec<u8> = iv.iter().zip(counter_bytes.iter()).map(|(a, b)| a^b).collect();
*counter += 1;
r
}
fn hkdf_expand_label(key: &[u8], label: &str, context: Option<&[u8]>, okm: &mut [u8]) {
let hkdf = Hkdf::<Sha384>::from_prk(key).unwrap();
//can't set info conditionnally because of different array size
match context {
Some(context) => {
let info = [&(label.len() as u32).to_be_bytes(), label.as_bytes(), &(context.len() as u32).to_be_bytes(), context];
hkdf.expand_multi_info(&info, okm).unwrap();
}
None => {
let info = [&(label.len() as u32).to_be_bytes(), label.as_bytes()];
hkdf.expand_multi_info(&info, okm).unwrap();
}
};
}
pub struct HandshakeKeys {
pub local_key: [u8; KEY_LEN],
pub local_iv: [u8; IV_LEN],
pub local_handshake_traffic_secret: [u8; HASH_OUTPUT_LEN],
pub peer_key: [u8; KEY_LEN],
pub peer_iv: [u8; IV_LEN],
pub peer_handshake_traffic_secret: [u8; HASH_OUTPUT_LEN],
pub handshake_secret: [u8; HASH_OUTPUT_LEN],
}
impl HandshakeKeys {
pub fn derive_keys(shared_secret: [u8; 32], handshake_hash: [u8; HASH_OUTPUT_LEN], i_am_bob: bool) -> HandshakeKeys {
let (handshake_secret, _) = Hkdf::<Sha384>::extract(None, &shared_secret);
let local_label = "handshake".to_owned() + if i_am_bob {"i_am_bob"} else {"i_am_alice"};
let mut local_handshake_traffic_secret = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(handshake_secret.as_slice(), &local_label, Some(&handshake_hash), &mut local_handshake_traffic_secret);
let peer_label = "handshake".to_owned() + if i_am_bob {"i_am_alice"} else {"i_am_bob"};
let mut peer_handshake_traffic_secret = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(handshake_secret.as_slice(), &peer_label, Some(&handshake_hash), &mut peer_handshake_traffic_secret);
let mut local_handshake_key = [0; KEY_LEN];
hkdf_expand_label(&local_handshake_traffic_secret, "key", None, &mut local_handshake_key);
let mut local_handshake_iv = [0; IV_LEN];
hkdf_expand_label(&local_handshake_traffic_secret, "iv", None, &mut local_handshake_iv);
let mut peer_handshake_key = [0; KEY_LEN];
hkdf_expand_label(&peer_handshake_traffic_secret, "key", None, &mut peer_handshake_key);
let mut peer_handshake_iv = [0; IV_LEN];
hkdf_expand_label(&peer_handshake_traffic_secret,"iv", None, &mut peer_handshake_iv);
HandshakeKeys {
local_key: local_handshake_key,
local_iv: local_handshake_iv,
local_handshake_traffic_secret: local_handshake_traffic_secret,
peer_key: peer_handshake_key,
peer_iv: peer_handshake_iv,
peer_handshake_traffic_secret: peer_handshake_traffic_secret,
handshake_secret: to_array_48(handshake_secret.as_slice())
}
}
}
pub struct ApplicationKeys {
pub local_key: [u8; KEY_LEN],
pub local_iv: [u8; IV_LEN],
pub peer_key: [u8; KEY_LEN],
pub peer_iv: [u8; IV_LEN],
}
impl ApplicationKeys {
pub fn derive_keys(handshake_secret: [u8; HASH_OUTPUT_LEN], handshake_hash: [u8; HASH_OUTPUT_LEN], i_am_bob: bool) -> ApplicationKeys {
let mut derived_secret = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(&handshake_secret, "derived", None, &mut derived_secret);
let (master_secret, _) = Hkdf::<Sha384>::extract(Some(&derived_secret), b"");
let local_label = "application".to_owned() + if i_am_bob {"i_am_bob"} else {"i_am_alice"};
let mut local_application_traffic_secret = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(&master_secret, &local_label, Some(&handshake_hash), &mut local_application_traffic_secret);
let peer_label = "application".to_owned() + if i_am_bob {"i_am_alice"} else {"i_am_bob"};
let mut peer_application_traffic_secret = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(&master_secret, &peer_label, Some(&handshake_hash), &mut peer_application_traffic_secret);
let mut local_application_key = [0; KEY_LEN];
hkdf_expand_label(&local_application_traffic_secret, "key", None, &mut local_application_key);
let mut local_application_iv = [0; IV_LEN];
hkdf_expand_label(&local_application_traffic_secret, "iv", None, &mut local_application_iv);
let mut peer_application_key = [0; KEY_LEN];
hkdf_expand_label(&peer_application_traffic_secret, "key", None, &mut peer_application_key);
let mut peer_application_iv = [0; IV_LEN];
hkdf_expand_label(&peer_application_traffic_secret,"iv", None, &mut peer_application_iv);
ApplicationKeys {
local_key: local_application_key,
local_iv: local_application_iv,
peer_key: peer_application_key,
peer_iv: peer_application_iv,
}
}
}
pub fn compute_handshake_finished(local_handshake_traffic_secret: [u8; HASH_OUTPUT_LEN], handshake_hash: [u8; HASH_OUTPUT_LEN]) -> [u8; HASH_OUTPUT_LEN] {
let mut finished_key = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(&local_handshake_traffic_secret, "finished", None, &mut finished_key);
let mut hmac = Hmac::<Sha384>::new_varkey(&finished_key).unwrap();
hmac.update(&handshake_hash);
hmac.finalize().into_bytes().as_slice().try_into().unwrap()
}
pub fn verify_handshake_finished(peer_handshake_finished: [u8; HASH_OUTPUT_LEN], peer_handshake_traffic_secret: [u8; HASH_OUTPUT_LEN], handshake_hash: [u8; HASH_OUTPUT_LEN]) -> bool {
let mut peer_finished_key = [0; HASH_OUTPUT_LEN];
hkdf_expand_label(&peer_handshake_traffic_secret, "finished", None, &mut peer_finished_key);
let mut hmac = Hmac::<Sha384>::new_varkey(&peer_finished_key).unwrap();
hmac.update(&handshake_hash);
hmac.verify(&peer_handshake_finished).is_ok()
}
pub fn generate_fingerprint(public_key: &[u8]) -> String {
let mut raw_fingerprint = [0; 16];
Hkdf::<Sha384>::new(None, public_key).expand(&[], &mut raw_fingerprint).unwrap();
hex::encode(raw_fingerprint).to_uppercase()
}
pub fn generate_master_key() -> [u8; MASTER_KEY_LEN] {
let mut master_key = [0; MASTER_KEY_LEN];
OsRng.fill_bytes(&mut master_key);
master_key
}
pub fn encrypt_data(data: &[u8], master_key: &[u8]) -> Result<Vec<u8>, CryptoError> {
if master_key.len() != MASTER_KEY_LEN {
return Err(CryptoError::InvalidLength);
}
let cipher = Aes256GcmSiv::new(GenericArray::from_slice(master_key));
let mut iv = [0; IV_LEN];
OsRng.fill_bytes(&mut iv); //use it for IV for now
let mut cipher_text = iv.to_vec();
cipher_text.extend(cipher.encrypt(GenericArray::from_slice(&iv), data).unwrap());
Ok(cipher_text)
}
#[derive(Display, Debug, PartialEq, Eq)]
pub enum CryptoError {
DecryptionFailed,
InvalidLength
}
pub fn decrypt_data(data: &[u8], master_key: &[u8]) -> Result<Vec<u8>, CryptoError> {
if data.len() <= IV_LEN || master_key.len() != MASTER_KEY_LEN {
return Err(CryptoError::InvalidLength);
}
let cipher = Aes256GcmSiv::new(GenericArray::from_slice(master_key));
match cipher.decrypt(GenericArray::from_slice(&data[..IV_LEN]), &data[IV_LEN..]) {
Ok(data) => {
Ok(data)
},
Err(_) => Err(CryptoError::DecryptionFailed)
}
}
fn scrypt_params() -> Params {
Params::new(16, 8, 1).unwrap()
}
pub fn encrypt_master_key(mut master_key: [u8; MASTER_KEY_LEN], password: &[u8]) -> (
[u8; SALT_LEN], //salt
[u8; IV_LEN+MASTER_KEY_LEN+AES_TAG_LEN] //encrypted masterkey with IV
) {
let mut salt = [0; SALT_LEN];
OsRng.fill_bytes(&mut salt);
let mut password_hash = [0; PASSWORD_HASH_LEN];
scrypt(password, &salt, &scrypt_params(), &mut password_hash).unwrap();
let mut output = [0; IV_LEN+MASTER_KEY_LEN+AES_TAG_LEN];
OsRng.fill_bytes(&mut output); //use it for IV for now
let cipher = Aes256GcmSiv::new(GenericArray::from_slice(&password_hash));
let encrypted_master_key = cipher.encrypt(GenericArray::from_slice(&output[..IV_LEN]), master_key.as_ref()).unwrap();
master_key.zeroize();
password_hash.zeroize();
encrypted_master_key.into_iter().enumerate().for_each(|i|{
output[IV_LEN+i.0] = i.1; //append encrypted master key to IV
});
(salt, output)
}
pub fn decrypt_master_key(encrypted_master_key: &[u8], password: &[u8], salt: &[u8]) -> Result<[u8; MASTER_KEY_LEN], CryptoError> {
if encrypted_master_key.len() != IV_LEN+MASTER_KEY_LEN+AES_TAG_LEN || salt.len() != SALT_LEN {
return Err(CryptoError::InvalidLength);
}
let mut password_hash = [0; PASSWORD_HASH_LEN];
scrypt(password, salt, &scrypt_params(), &mut password_hash).unwrap();
let cipher = Aes256GcmSiv::new(GenericArray::from_slice(&password_hash));
let result = match cipher.decrypt(GenericArray::from_slice(&encrypted_master_key[..IV_LEN]), &encrypted_master_key[IV_LEN..]) {
Ok(master_key) => {
if master_key.len() == MASTER_KEY_LEN {
Ok(master_key.try_into().unwrap())
} else {
return Err(CryptoError::InvalidLength)
}
},
Err(_) => Err(CryptoError::DecryptionFailed)
};
password_hash.zeroize();
result
}

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use std::{thread, net::IpAddr};
use astro_dnssd::register::DNSServiceBuilder;
use multicast_dns::discovery::{DiscoveryManager, DiscoveryListeners, ResolveListeners};
use crate::{constants, print_error};
const SERVICE_TYPE: &str = "_aira._tcp";
pub fn advertise_me(){
thread::spawn(||{
let mut service = DNSServiceBuilder::new(SERVICE_TYPE)
.with_name("AIRA Node")
.with_port(constants::PORT)
.build()
.unwrap();
match service.register(|reply| match reply {
Ok(_) => {},
Err(e) => print_error!("Error registering: {:?}", e)
}) {
Ok(_) => {
loop {
service.process_result();
}
}
Err(e) => print_error!("Unable to register mDNS service. You won't be discoverable by others peers. {}", e)
};
});
}
pub fn discover_peers<F: Fn(&DiscoveryManager, IpAddr)>(on_service_discovered: F) {
let discovery_manager = DiscoveryManager::new();
match discovery_manager.discover_services(SERVICE_TYPE, DiscoveryListeners{
on_service_discovered: Some(&|service| {
discovery_manager.resolve_service(service, ResolveListeners{
on_service_resolved: Some(&|service| {
match service.address {
Some(service_ip) => on_service_discovered(&discovery_manager, service_ip.parse().unwrap()),
None => print_error!("Service discovered without IP address: {:?}", service)
};
})
});
}),
on_all_discovered: Some(&|| {
discovery_manager.stop_service_discovery();
})
}) {
Ok(_) => {},
Err(e) => print_error!(e)
}
}

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function generate_avatar(name){
let span = document.createElement("span");
if (typeof name == "undefined"){
span.appendChild(document.createTextNode("?"));
} else {
span.appendChild(document.createTextNode(name[0].toUpperCase()));
}
let div = document.createElement("div");
div.classList.add("avatar");
div.appendChild(span);
div.appendChild(document.createElement("div")); //used for background
return div;
}

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@font-face {
font-family: TwitterColorEmoji;
src: url("/static/fonts/TwitterColorEmoji.ttf");
}
:root {
--accent: #FF3C00;
--transparent: #00000000;
}
html {
height: 100%;
font-family: TwitterColorEmoji,Arial,Helvetica,Sans-Serif;
color: white;
}
input[type="text"], input[type="password"] {
background-color: var(--transparent);
color: white;
padding: 15px;
border: 2px solid var(--accent);
border-radius: 5px;
box-sizing: border-box;
width: 100%;
margin: 0;
}
.avatar {
position: relative;
margin-right: .5em;
width: 1.5em;
height: 1.5em;
}
.avatar div {
width: 100%;
height: 100%;
background-color: var(--accent);
border-radius: 100%;
}
.avatar span {
position: absolute;
z-index: 1;
display: flex;
align-items: center;
justify-content: center;
height: 100%;
width: 100%;
margin: 0;
}

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"use strict";!function(e,t){var n=function(t){function n(e,t,n){var r=n[n.length-1];e.replaceChild(r,t);for(var i=n.length-2;i>=0;i--)e.insertBefore(n[i],r),r=n[i]}function r(e,t,n){for(var r=[],i=e,a=Array.isArray(i),o=0,i=a?i:i[Symbol.iterator]();;){var l;if(a){if(o>=i.length)break;l=i[o++]}else{if(o=i.next(),o.done)break;l=o.value}var s=l;if("nl"===s.type&&t.nl2br)r.push(n.createElement("br"));else if(s.isLink&&t.check(s)){var f=t.resolve(s),c=f.formatted,d=f.formattedHref,u=f.tagName,v=f.className,h=f.target,m=f.events,g=f.attributes,p=n.createElement(u);if(p.setAttribute("href",d),v&&p.setAttribute("class",v),h&&p.setAttribute("target",h),g)for(var b in g)p.setAttribute(b,g[b]);if(m)for(var y in m)p.addEventListener?p.addEventListener(y,m[y]):p.attachEvent&&p.attachEvent("on"+y,m[y]);p.appendChild(n.createTextNode(c)),r.push(p)}else r.push(n.createTextNode(s.toString()))}return r}function i(e,t,a){if(!e||e.nodeType!==c)throw new Error("Cannot linkify "+e+" - Invalid DOM Node type");var s=t.ignoreTags;if("A"===e.tagName||l.contains(s,e.tagName))return e;for(var u=e.firstChild;u;){var v=void 0,h=void 0,m=void 0;switch(u.nodeType){case c:i(u,t,a);break;case d:if(v=u.nodeValue,h=o(v),0===h.length||1===h.length&&h[0]instanceof f)break;m=r(h,t,a),n(e,u,m),u=m[m.length-1]}u=u.nextSibling}return e}function a(t,n){var r=arguments.length>2&&void 0!==arguments[2]&&arguments[2];try{r=r||document||e&&e.document||global&&global.document}catch(a){}if(!r)throw new Error("Cannot find document implementation. If you are in a non-browser environment like Node.js, pass the document implementation as the third argument to linkifyElement.");return n=new s(n),i(t,n,r)}var o=t.tokenize,l=t.options,s=l.Options,f=t.parser.TOKENS.TEXT,c=1,d=3;return a.helper=i,a.normalize=function(e){return new s(e)},a}(t);e.linkifyElement=n}(window,linkify);

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>AIRA - Login</title>
<link rel="stylesheet" href="/static/commons/style.css">
<style>
body {
margin: 0;
height: 100%;
background-image: url("/static/imgs/wallpaper");
background-repeat: no-repeat;
background-position: center;
background-color: black;
}
main {
max-width: 500px;
background-color: #2B2F31;
border-radius: 10px;
position: absolute;
top: 20vh;
left: 0;
right: 0;
margin: auto;
padding-bottom: 20px;
}
h1, main>h3, #error_msg {
text-align: center;
}
h1 {
font-size: 3em;
margin-bottom: 0;
}
main>h3 {
font-style: italic;
color: #7E8183;
}
#error_msg {
font-size: 1.2em;
font-weight: bold;
margin-bottom: 0;
}
input[type="text"], input[type="password"] {
margin-bottom: 20px;
}
#create_page input[type="password"] {
display: none;
}
button {
background-color: #52585C;
color: white;
cursor: pointer;
padding: 15px 20%;
border: none;
border-radius: 8px;
display: block;
margin: auto;
}
button:hover {
background-color: var(--accent);
}
.action_page {
padding: 10px 50px;
}
.avatar {
width: 2em;
height: 2em;
font-size: 3em;
margin: auto;
}
#identity h2 {
text-align: center;
}
p {
color: red;
}
label.checkbox {
display: flex;
align-items: center;
cursor: pointer;
font-size: 1.1em;
margin-bottom: 1em;
}
input[type="checkbox"] {
display: none;
}
.checkmark {
position: relative;
height: 1.5em;
width: 1.5em;
border: 2px solid var(--accent);
margin-right: .5em;
border-radius: 5px;
}
.checkmark:after {
content: "";
position: absolute;
display: none;
left: .5em;
top: .3em;
width: .3em;
height: .6em;
border: solid white;
border-width: 0 3px 3px 0;
transform: rotate(45deg);
}
label.checkbox input:checked ~ .checkmark {
background-color: var(--accent);
}
label.checkbox input:checked ~ .checkmark:after {
display: block;
}
</style>
</head>
<body>
<main>
<h1>AIRA</h1>
<h3>Local network secure P2P communications</h3>
<p id="error_msg">ERROR_MSG</p>
<div id="login_page" class="action_page">
<h2>Login:</h2>
<form id="login_form" method="POST" action="/login">
<div id="identity"></div>
<input name="password" type="password" placeholder="Password">
<button type="submit">Login</button>
</form>
</div>
<div id="create_page" class="action_page">
<h2>Create New Identity:</h2>
<form method="POST">
<input type="text" name="name" placeholder="Name" required>
<label class="checkbox">
<input id="enable_password" type="checkbox">
<span class="checkmark"></span>
Encrypt with a password
</label>
<input type="password" name="password" placeholder="Password">
<input type="password" name="password_confirm" placeholder="Password (Confirmation)">
<button type="submit">Create</button>
</form>
</div>
</main>
<script src="/static/commons/script.js"></script>
<script>
let identity_name = IDENTITY_NAME;
if (identity_name == null) {
document.getElementById("login_page").style.display = "none";
let enable_password = document.getElementById("enable_password");
enable_password.onchange = function() {
document.querySelectorAll("#create_page input[type=\"password\"]").forEach(function(i) {
if (enable_password.checked) {
i.style.display = "block";
} else {
i.style.display = "none";
}
});
}
} else {
let identity = document.getElementById("identity");
identity.appendChild(generate_avatar(identity_name));
let h2 = document.createElement("h2");
h2.textContent = identity_name;
identity.appendChild(h2);
document.getElementById("create_page").style.display = "none";
}
</script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>AIRA - Logged out</title>
<link rel="stylesheet" href="/static/commons/style.css">
<style>
body {
margin: 0;
height: 100%;
background-image: url("/static/imgs/wallpaper");
background-repeat: no-repeat;
background-position: center;
background-color: black;
}
main {
max-width: 500px;
background-color: #2B2F31;
border-radius: 10px;
position: absolute;
top: 50%;
transform: translateY(-50%);
left: 0;
right: 0;
margin: auto;
padding: 50px;
}
img {
display: block;
width: 40%;
margin: auto;
}
p {
text-align: center;
font-size: 1.2em;
}
</style>
</head>
<body>
<main>
<img src="/static/imgs/frog">
<p>You've been successfully logged out.</p>
</main>
</body>
</html>

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use std::{convert::TryInto, path::Path};
use crypto::CryptoError;
use ed25519_dalek::{Keypair, Signer, SIGNATURE_LENGTH, PUBLIC_KEY_LENGTH};
use rusqlite::{Connection, params};
use dirs;
use utils::to_uuid_bytes;
use uuid::Uuid;
use zeroize::Zeroize;
use crate::{constants, crypto, key_value_table::KeyValueTable, print_error, utils};
const MAIN_TABLE: &str = "main";
const CONTACTS_TABLE: &str = "contacts";
const FILES_TABLE: &str = "files";
const DATABASE_CORRUPED_ERROR: &str = "Database corrupted";
struct DBKeys;
impl<'a> DBKeys {
pub const NAME: &'a str = "name";
pub const KEYPAIR: &'a str = "keypair";
pub const SALT: &'a str = "salt";
pub const MASTER_KEY: &'a str = "master_key";
}
fn bool_to_byte(b: bool) -> u8 {
if b { 75 } else { 30 } //completely arbitrary values
}
fn byte_to_bool(b: u8) -> Result<bool, ()> {
if b == 75 {
Ok(true)
} else if b == 30 {
Ok(false)
} else {
Err(())
}
}
fn get_database_path() -> String {
Path::new(&dirs::data_local_dir().unwrap()).join(constants::APPLICATION_FOLDER).join(constants::DB_NAME).to_str().unwrap().to_owned()
}
struct EncryptedIdentity {
name: String,
encrypted_keypair: Vec<u8>,
salt: Vec<u8>,
encrypted_master_key: Vec<u8>
}
pub struct Contact {
pub uuid: Uuid,
pub public_key: [u8; PUBLIC_KEY_LENGTH],
pub name: String,
pub verified: bool,
pub seen: bool,
}
pub struct Identity {
pub name: String,
keypair: Keypair,
pub master_key: [u8; crypto::MASTER_KEY_LEN],
}
impl Identity {
pub fn sign(&self, input: &[u8]) -> [u8; SIGNATURE_LENGTH] {
self.keypair.sign(input).to_bytes()
}
pub fn get_public_key(&self) -> [u8; PUBLIC_KEY_LENGTH] {
self.keypair.public.to_bytes()
}
pub fn add_contact(&self, name: String, public_key: [u8; PUBLIC_KEY_LENGTH]) -> Result<Contact, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
db.execute(&("CREATE TABLE IF NOT EXISTS ".to_owned()+CONTACTS_TABLE+"(uuid BLOB PRIMARY KEY, name BLOB, key BLOB, verified BLOB, seen BLOB)"), [])?;
let contact_uuid = Uuid::new_v4();
let encrypted_name = crypto::encrypt_data(name.as_bytes(), &self.master_key).unwrap();
let encrypted_public_key = crypto::encrypt_data(&public_key, &self.master_key).unwrap();
let encrypted_verified = crypto::encrypt_data(&[bool_to_byte(false)], &self.master_key).unwrap();
let encrypted_seen = crypto::encrypt_data(&[bool_to_byte(true)], &self.master_key).unwrap();
db.execute(&("INSERT INTO ".to_owned()+CONTACTS_TABLE+" (uuid, name, key, verified, seen) VALUES (?1, ?2, ?3, ?4, ?5)"), params![&contact_uuid.as_bytes()[..], encrypted_name, encrypted_public_key, encrypted_verified, encrypted_seen])?;
Ok(Contact {
uuid: contact_uuid,
public_key: public_key,
name: name,
verified: false,
seen: true,
})
}
pub fn remove_contact(uuid: &Uuid) -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
Identity::delete_conversation(uuid)?;
db.execute(&("DELETE FROM ".to_owned()+CONTACTS_TABLE+" WHERE uuid=?"), [&uuid.as_bytes()[..]])
}
pub fn set_verified(&self, uuid: &Uuid) -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
let encrypted_verified = crypto::encrypt_data(&[bool_to_byte(true)], &self.master_key).unwrap();
db.execute(&format!("UPDATE {} SET verified=?1 WHERE uuid=?2", CONTACTS_TABLE), [encrypted_verified.as_slice(), &uuid.as_bytes()[..]])
}
pub fn change_contact_name(&self, uuid: &Uuid, new_name: &str) -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
let encrypted_name = crypto::encrypt_data(new_name.as_bytes(), &self.master_key).unwrap();
db.execute(&format!("UPDATE {} SET name=?1 WHERE uuid=?2", CONTACTS_TABLE), [encrypted_name.as_slice(), uuid.as_bytes()])
}
pub fn set_contact_seen(&self, uuid: &Uuid, seen: bool) -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
let encrypted_seen = crypto::encrypt_data(&[bool_to_byte(seen)], &self.master_key).unwrap();
db.execute(&format!("UPDATE {} SET seen=?1 WHERE uuid=?2", CONTACTS_TABLE), [encrypted_seen.as_slice(), uuid.as_bytes()])
}
pub fn load_contacts(&self) -> Option<Vec<Contact>> {
match Connection::open(get_database_path()) {
Ok(db) => {
match db.prepare(&("SELECT uuid, name, key, verified, seen FROM ".to_owned()+CONTACTS_TABLE)) {
Ok(mut stmt) => {
let mut rows = stmt.query([]).unwrap();
let mut contacts = Vec::new();
while let Some(row) = rows.next().unwrap() {
let encrypted_public_key: Vec<u8> = row.get(2).unwrap();
match crypto::decrypt_data(encrypted_public_key.as_slice(), &self.master_key) {
Ok(public_key) => {
if public_key.len() == PUBLIC_KEY_LENGTH {
let encrypted_name: Vec<u8> = row.get(1).unwrap();
match crypto::decrypt_data(encrypted_name.as_slice(), &self.master_key) {
Ok(name) => {
let encrypted_verified: Vec<u8> = row.get(3).unwrap();
match crypto::decrypt_data(encrypted_verified.as_slice(), &self.master_key) {
Ok(verified) => {
let encrypted_seen: Vec<u8> = row.get(4).unwrap();
match crypto::decrypt_data(encrypted_seen.as_slice(), &self.master_key) {
Ok(seen) => {
let uuid: Vec<u8> = row.get(0).unwrap();
match to_uuid_bytes(&uuid) {
Some(uuid_bytes) => {
contacts.push(Contact {
uuid: Uuid::from_bytes(uuid_bytes),
public_key: public_key.try_into().unwrap(),
name: std::str::from_utf8(name.as_slice()).unwrap().to_owned(),
verified: byte_to_bool(verified[0]).unwrap(),
seen: byte_to_bool(seen[0]).unwrap(),
})
}
None => {}
}
}
Err(e) => print_error!(e)
}
}
Err(e) => print_error!(e)
}
}
Err(e) => print_error!(e)
}
} else {
print_error!("Invalid public key length: database corrupted");
}
}
Err(e) => print_error!(e)
}
}
Some(contacts)
}
Err(e) => {
print_error!(e);
None
}
}
}
Err(e) => {
print_error!(e);
None
}
}
}
pub fn clear_temporary_files() -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
db.execute(&format!("DELETE FROM {} WHERE contact_uuid IS NULL", FILES_TABLE), [])
}
pub fn load_file(&self, uuid: Uuid) -> Option<Vec<u8>> {
match Connection::open(get_database_path()) {
Ok(db) => {
match db.prepare(&format!("SELECT uuid, data FROM \"{}\"", FILES_TABLE)) {
Ok(mut stmt) => {
let mut rows = stmt.query([]).unwrap();
while let Some(row) = rows.next().unwrap() {
let encrypted_uuid: Vec<u8> = row.get(0).unwrap();
match crypto::decrypt_data(encrypted_uuid.as_slice(), &self.master_key){
Ok(test_uuid) => {
if test_uuid == uuid.as_bytes() {
let encrypted_data: Vec<u8> = row.get(1).unwrap();
match crypto::decrypt_data(encrypted_data.as_slice(), &self.master_key) {
Ok(data) => return Some(data),
Err(e) => print_error!(e)
}
}
}
Err(e) => print_error!(e)
}
}
None
}
Err(e) => {
print_error!(e);
None
}
}
}
Err(e) => {
print_error!(e);
None
}
}
}
pub fn store_file(&self, contact_uuid: Option<Uuid>, data: &[u8]) -> Result<Uuid, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
db.execute(&format!("CREATE TABLE IF NOT EXISTS \"{}\" (contact_uuid BLOB, uuid BLOB, data BLOB)", FILES_TABLE), [])?;
let file_uuid = Uuid::new_v4();
let encrypted_uuid = crypto::encrypt_data(file_uuid.as_bytes(), &self.master_key).unwrap();
let encrypted_data = crypto::encrypt_data(data, &self.master_key).unwrap();
let query = format!("INSERT INTO \"{}\" (contact_uuid, uuid, data) VALUES (?1, ?2, ?3)", FILES_TABLE);
match contact_uuid {
Some(uuid) => db.execute(&query, params![&uuid.as_bytes()[..], &encrypted_uuid, &encrypted_data])?,
None => db.execute(&query, params![None as Option<Vec<u8>>, &encrypted_uuid, &encrypted_data])?
};
Ok(file_uuid)
}
pub fn store_msg(&self, contact_uuid: &Uuid, outgoing: bool, data: &[u8]) -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
db.execute(&format!("CREATE TABLE IF NOT EXISTS \"{}\" (outgoing BLOB, data BLOB)", contact_uuid), [])?;
let outgoing_byte: u8 = bool_to_byte(outgoing);
let encrypted_outgoing = crypto::encrypt_data(&[outgoing_byte], &self.master_key).unwrap();
let encrypted_data = crypto::encrypt_data(data, &self.master_key).unwrap();
db.execute(&format!("INSERT INTO \"{}\" (outgoing, data) VALUES (?1, ?2)", contact_uuid), params![encrypted_outgoing, encrypted_data])
}
pub fn load_msgs(&self, contact_uuid: &Uuid, offset: usize, mut count: usize) -> Option<Vec<(bool, Vec<u8>)>> {
match Connection::open(get_database_path()) {
Ok(db) => {
match db.prepare(&format!("SELECT count(*) FROM \"{}\"", contact_uuid)) {
Ok(mut stmt) => {
let mut rows = stmt.query([]).unwrap();
let row = rows.next().unwrap();
if row.is_some() {
let total: usize = row.unwrap().get(0).unwrap();
if offset >= total {
print_error!("Offset larger than total numbers of rows");
None
} else {
if offset+count >= total {
count = total-offset;
}
match db.prepare(&format!("SELECT outgoing, data FROM \"{}\" LIMIT {} OFFSET {}", contact_uuid, count, total-offset-count)) {
Ok(mut stmt) => {
let mut rows = stmt.query([]).unwrap();
let mut msgs = Vec::new();
while let Some(row) = rows.next().unwrap() {
let encrypted_outgoing: Vec<u8> = row.get(0).unwrap();
match crypto::decrypt_data(encrypted_outgoing.as_slice(), &self.master_key){
Ok(outgoing) => {
match byte_to_bool(outgoing[0]) {
Ok(outgoing) => {
let encrypted_data: Vec<u8> = row.get(1).unwrap();
match crypto::decrypt_data(encrypted_data.as_slice(), &self.master_key) {
Ok(data) => {
msgs.push(
(
outgoing,
data
)
)
},
Err(e) => print_error!(e)
}
}
Err(_) => {}
}
}
Err(e) => print_error!(e)
}
}
Some(msgs)
}
Err(e) => {
print_error!(e);
None
}
}
}
} else {
None
}
}
Err(e) => {
print_error!(e);
None
}
}
}
Err(e) => {
print_error!(e);
None
}
}
}
#[allow(unused_must_use)]
pub fn delete_conversation(contact_uuid: &Uuid) -> Result<usize, rusqlite::Error> {
let db = Connection::open(get_database_path())?;
db.execute(&format!("DELETE FROM {} WHERE contact_uuid=?", FILES_TABLE), &[&contact_uuid.as_bytes()[..]]);
db.execute(&format!("DROP TABLE IF EXISTS \"{}\"", contact_uuid), [])
}
pub fn change_name(&mut self, new_name: String) -> Result<usize, rusqlite::Error> {
let db = KeyValueTable::new(&get_database_path(), MAIN_TABLE)?;
let result = db.update(DBKeys::NAME, new_name.as_bytes());
if result.is_ok() {
self.name = new_name;
}
result
}
pub fn zeroize(&mut self){
self.master_key.zeroize();
self.keypair.secret.zeroize();
}
fn load_encrypted_identity() -> Result<EncryptedIdentity, rusqlite::Error> {
let db = KeyValueTable::new(&get_database_path(), MAIN_TABLE)?;
let name = db.get(DBKeys::NAME)?;
let encrypted_keypair = db.get(DBKeys::KEYPAIR)?;
let salt = db.get(DBKeys::SALT)?;
let encrypted_master_key = db.get(DBKeys::MASTER_KEY)?;
Ok(EncryptedIdentity {
name: std::str::from_utf8(&name).unwrap().to_owned(),
encrypted_keypair,
salt,
encrypted_master_key,
})
}
pub fn load_identity(password: Option<&[u8]>) -> Result<Identity, String> {
match Identity::load_encrypted_identity() {
Ok(encrypted_identity) => {
let master_key: [u8; crypto::MASTER_KEY_LEN] = if password.is_none() {
if encrypted_identity.encrypted_master_key.len() == crypto::MASTER_KEY_LEN {
encrypted_identity.encrypted_master_key.try_into().unwrap()
} else {
return Err(String::from(DATABASE_CORRUPED_ERROR))
}
} else {
match crypto::decrypt_master_key(&encrypted_identity.encrypted_master_key, password.unwrap(), &encrypted_identity.salt) {
Ok(master_key) => master_key,
Err(e) => return Err(
match e {
CryptoError::DecryptionFailed => "Bad password".to_owned(),
CryptoError::InvalidLength => String::from(DATABASE_CORRUPED_ERROR)
}
)
}
};
match crypto::decrypt_data(&encrypted_identity.encrypted_keypair, &master_key) {
Ok(keypair) => {
Ok(Identity{
name: encrypted_identity.name,
keypair: Keypair::from_bytes(&keypair[..]).unwrap(),
master_key: master_key,
})
}
Err(e) => {
print_error!(e);
Err(String::from(DATABASE_CORRUPED_ERROR))
}
}
}
Err(e) => Err(e.to_string())
}
}
pub fn get_identity_name() -> Result<String, rusqlite::Error> {
let db = KeyValueTable::new(&get_database_path(), MAIN_TABLE)?;
Ok(std::str::from_utf8(&db.get(DBKeys::NAME)?).unwrap().to_string())
}
pub fn is_protected() -> Result<bool, rusqlite::Error> {
let db = KeyValueTable::new(&get_database_path(), MAIN_TABLE)?;
Ok(db.get(DBKeys::MASTER_KEY)?.len() != crypto::MASTER_KEY_LEN)
}
pub fn create_identidy(name: &str, password: Option<&[u8]>) -> Result<Identity, rusqlite::Error> {
let keypair = Keypair::generate(&mut rand_7::rngs::OsRng);
let master_key = crypto::generate_master_key();
let encrypted_keypair = crypto::encrypt_data(&keypair.to_bytes(), &master_key).unwrap();
let db = KeyValueTable::new(&get_database_path(), MAIN_TABLE)?;
db.set(DBKeys::NAME, name.as_bytes())?;
db.set(DBKeys::KEYPAIR, &encrypted_keypair)?;
let salt = if password.is_none() { //no password
db.set(DBKeys::MASTER_KEY, &master_key)?; //storing master_key in plaintext
[0; crypto::SALT_LEN]
} else {
let (salt, encrypted_master_key) = crypto::encrypt_master_key(master_key, password.unwrap());
db.set(DBKeys::MASTER_KEY, &encrypted_master_key)?;
salt
};
db.set(DBKeys::SALT, &salt)?;
Ok(Identity {
name: name.to_owned(),
keypair,
master_key: master_key,
})
}
fn update_master_key(master_key: [u8; crypto::MASTER_KEY_LEN], new_password: Option<&[u8]>) -> Result<usize, rusqlite::Error> {
let db = KeyValueTable::new(&get_database_path(), MAIN_TABLE)?;
let salt = if new_password.is_none() { //no password
db.update(DBKeys::MASTER_KEY, &master_key)?;
[0; crypto::SALT_LEN]
} else {
let (salt, encrypted_master_key) = crypto::encrypt_master_key(master_key, new_password.unwrap());
db.update(DBKeys::MASTER_KEY, &encrypted_master_key)?;
salt
};
db.update(DBKeys::SALT, &salt)
}
pub fn change_password(old_password: Option<&[u8]>, new_password: Option<&[u8]>) -> Result<bool, String> {
match Identity::load_encrypted_identity() {
Ok(encrypted_identity) => {
let master_key: [u8; crypto::MASTER_KEY_LEN] = if old_password.is_none() {
if encrypted_identity.encrypted_master_key.len() == crypto::MASTER_KEY_LEN {
encrypted_identity.encrypted_master_key.try_into().unwrap()
} else {
return Err(String::from(DATABASE_CORRUPED_ERROR))
}
} else {
match crypto::decrypt_master_key(&encrypted_identity.encrypted_master_key, old_password.unwrap(), &encrypted_identity.salt) {
Ok(master_key) => master_key,
Err(e) => return match e {
CryptoError::DecryptionFailed => Ok(false),
CryptoError::InvalidLength => Err(String::from(DATABASE_CORRUPED_ERROR))
}
}
};
match Identity::update_master_key(master_key, new_password) {
Ok(_) => Ok(true),
Err(e) => Err(e.to_string())
}
}
Err(e) => Err(e.to_string())
}
}
pub fn delete_identity() -> Result<(), std::io::Error> {
std::fs::remove_file(get_database_path())
}
}
impl Clone for Identity {
fn clone(&self) -> Self {
Identity {
name: self.name.clone(),
keypair: Keypair::from_bytes(&self.keypair.to_bytes()).unwrap(),
master_key: self.master_key,
}
}
}

31
src/key_value_table.rs Normal file
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@ -0,0 +1,31 @@
use rusqlite::{Connection, Error, params};
pub struct KeyValueTable<'a> {
db: Connection,
table_name: &'a str,
}
impl<'a> KeyValueTable<'a> {
pub fn new(db_path: &str, table_name: &'a str) -> Result<KeyValueTable<'a>, Error> {
let db = Connection::open(db_path)?;
db.execute(&format!("CREATE TABLE IF NOT EXISTS {} (key TEXT PRIMARY KEY, value BLOB)", table_name), [])?;
Ok(KeyValueTable {db, table_name})
}
pub fn set(&self, key: &str, value: &[u8]) -> Result<usize, Error> {
Ok(self.db.execute(&format!("INSERT INTO {} (key, value) VALUES (?1, ?2)", self.table_name), params![key, value])?)
}
pub fn get(&self, key: &str) -> Result<Vec<u8>, Error> {
let mut stmt = self.db.prepare(&format!("SELECT value FROM {} WHERE key=\"{}\"", self.table_name, key))?;
let mut rows = stmt.query([])?;
match rows.next()? {
Some(row) => Ok(row.get(0)?),
None => Err(rusqlite::Error::QueryReturnedNoRows)
}
}
/*pub fn del(&self, key: &str) -> Result<usize, Error> {
self.db.execute(&format!("DELETE FROM {} WHERE key=\"{}\"", self.table_name, key), NO_PARAMS)
}*/
pub fn update(&self, key: &str, value: &[u8]) -> Result<usize, Error> {
self.db.execute(&format!("UPDATE {} SET value=? WHERE key=\"{}\"", self.table_name, key), params![value])
}
}

638
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mod key_value_table;
mod identity;
mod crypto;
mod session_manager;
mod utils;
mod ui_interface;
mod constants;
mod discovery;
use std::{env, fs, io, net::{SocketAddr, TcpStream}, path::Path, str::FromStr, sync::{Arc, RwLock}};
use tokio::net::{TcpListener};
use actix_web::{App, HttpMessage, HttpRequest, HttpResponse, HttpServer, http::{header, CookieBuilder}, web, web::Data};
use actix_multipart::Multipart;
use tungstenite::Message;
use futures::{StreamExt, TryStreamExt};
use rand_8::{RngCore, rngs::OsRng};
use serde::{Deserialize, Serialize};
use uuid::Uuid;
use zeroize::Zeroize;
use utils::escape_double_quote;
use identity::Identity;
use session_manager::{SessionManager, protocol};
use ui_interface::UiConnection;
async fn start_websocket_server(global_vars: Arc<RwLock<GlobalVars>>) -> u16 {
let websocket_bind_addr = env::var("AIRA_WEBSOCKET_ADDR").unwrap_or("127.0.0.1".to_owned());
let websocket_port = env::var("AIRA_WEBSOCKET_PORT").unwrap_or("0".to_owned());
let server = TcpListener::bind(websocket_bind_addr+":"+&websocket_port).await.unwrap();
let websocket_port = server.local_addr().unwrap().port();
tokio::spawn(async move {
let worker_done = Arc::new(RwLock::new(true));
loop {
let (stream, _addr) = server.accept().await.unwrap();
if *worker_done.read().unwrap() {
let stream = stream.into_std().unwrap();
stream.set_nonblocking(false).unwrap();
match tungstenite::accept(stream.try_clone().unwrap()) {
Ok(websocket) => {
let ui_connection = UiConnection::new(websocket);
let global_vars = global_vars.clone();
global_vars.read().unwrap().session_manager.set_ui_connection(ui_connection);
*worker_done.write().unwrap() = false;
websocket_worker(stream, global_vars, worker_done.clone()).await;
}
Err(e) => print_error!(e)
}
}
}
});
websocket_port
}
fn discover_peers(session_manager: Arc<SessionManager>) {
tokio::spawn(async move {
discovery::discover_peers(move |discovery_manager, ip| {
println!("New peer discovered: {}", ip);
let session_manager = session_manager.clone();
if session_manager.is_identity_loaded() {
tokio::spawn( async move {
if SessionManager::connect_to(session_manager, ip).await.is_err() {
print_error!("Failed to connect to: {}", ip);
}
});
} else {
discovery_manager.stop_service_discovery();
}
});
});
}
fn load_msgs(session_manager: Arc<SessionManager>, ui_connection: &mut UiConnection, session_id: &usize) -> usize {
match session_manager.load_msgs(session_id, constants::MSG_LOADING_COUNT) {
Some(msgs) => {
ui_connection.load_msgs(session_id, &msgs);
msgs.len()
}
None => 0
}
}
async fn websocket_worker(websocket_strem: TcpStream, global_vars: Arc<RwLock<GlobalVars>>, worker_done: Arc<RwLock<bool>>) {
let mut ui_connection = UiConnection::from_raw_socket(websocket_strem.try_clone().unwrap());
let session_manager = global_vars.read().unwrap().session_manager.clone();
ui_connection.set_name(&session_manager.get_my_name());
session_manager.list_contacts().into_iter().for_each(|contact|{
ui_connection.set_as_contact(contact.0, &contact.1, contact.2);
session_manager.last_loaded_msg_offsets.write().unwrap().insert(contact.0, 0);
load_msgs(session_manager.clone(), &mut ui_connection, &contact.0);
});
if global_vars.read().unwrap().is_backend_running { //ui reconnection
session_manager.list_sessions().into_iter().for_each(|session| {
ui_connection.on_new_session(session.0, session.1);
});
} else {
if SessionManager::start_listener(session_manager.clone()).await.is_err() {
print_error!("You won't be able to receive incomming connections from other peers.");
}
discovery::advertise_me();
global_vars.write().unwrap().is_backend_running = true;
}
let not_seen = session_manager.list_not_seen();
if not_seen.len() > 0 {
ui_connection.set_not_seen(not_seen);
}
session_manager.get_saved_msgs().into_iter().for_each(|msgs| {
ui_connection.load_msgs(&msgs.0, &msgs.1);
});
discover_peers(session_manager.clone());
let handle = tokio::runtime::Handle::current();
std::thread::spawn(move || {
loop {
match ui_connection.websocket.read_message() {
Ok(msg) => {
if msg.is_ping() {
ui_connection.write_message(Message::Pong(Vec::new())); //not sure if I'm doing this right
} else if msg.is_text() {
let msg = msg.into_text().unwrap();
let global_vars = global_vars.clone();
let session_manager = session_manager.clone();
let mut ui_connection = UiConnection::from_raw_socket(websocket_strem.try_clone().unwrap());
handle.spawn(async move {
let args: Vec<&str> = msg.split(" ").collect();
match args[0] {
"set_seen" => {
let session_id: usize = args[1].parse().unwrap();
session_manager.set_seen(session_id, true);
}
"connect" => {
match args[1].parse() {
Ok(ip) => if SessionManager::connect_to(session_manager.clone(), ip).await.is_err() {
print_error!("Failed to connect to: {}", ip);
}
Err(e) => print_error!(e)
}
}
"refresh" => discover_peers(session_manager.clone()),
"send" => {
let session_id: usize = args[1].parse().unwrap();
let buffer = protocol::new_message(msg[args[0].len()+args[1].len()+2..].to_string());
match session_manager.send_to(&session_id, buffer.clone()).await {
Ok(_) => session_manager.store_msg(&session_id, true, buffer),
Err(e) => print_error!(e)
}
}
"load_msgs" => {
let session_id: usize = args[1].parse().unwrap();
load_msgs(session_manager.clone(), &mut ui_connection, &session_id);
}
"contact" => {
let session_id: usize = args[1].parse().unwrap();
match session_manager.add_contact(session_id, msg[args[0].len()+args[1].len()+2..].to_string()) {
Ok(_) => {},
Err(e) => print_error!(e)
}
}
"uncontact" => {
let session_id: usize = args[1].parse().unwrap();
match session_manager.remove_contact(&session_id) {
Ok(_) => {},
Err(e) => print_error!(e)
}
}
"fingerprints" => {
let session_id: usize = args[1].parse().unwrap();
let (local, peer) = session_manager.get_public_keys(&session_id);
let local = crypto::generate_fingerprint(&local);
let peer = crypto::generate_fingerprint(&peer);
ui_connection.fingerprints(&local, &peer);
}
"verify" => {
let session_id: usize = args[1].parse().unwrap();
match session_manager.set_verified(&session_id) {
Ok(_) => {},
Err(e) => print_error!(e)
}
}
"delete_conversation" => {
let session_id: usize = args[1].parse().unwrap();
match session_manager.delete_conversation(session_id) {
Ok(_) => {},
Err(e) => print_error!(e)
}
}
"change_name" => {
let new_name = &msg[args[0].len()+1..];
match session_manager.change_name(new_name.to_string()).await {
Ok(_) => {
ui_connection.set_name(new_name)
}
Err(e) => print_error!(e)
};
}
"change_password" => {
let global_vars_read = global_vars.read().unwrap();
let (old_password, new_password) = if args.len() == 3 {
(Some(base64::decode(args[1]).unwrap()), Some(base64::decode(args[2]).unwrap()))
} else if global_vars_read.is_identity_protected { //sent old_password
(Some(base64::decode(args[1]).unwrap()), None)
} else { //sent new password
(None, Some(base64::decode(args[1]).unwrap()))
};
let result = Identity::change_password(old_password.as_deref(), new_password.as_deref());
if old_password.is_some() {
old_password.unwrap().zeroize();
}
let is_identity_protected = if new_password.is_some() {
new_password.unwrap().zeroize();
true
} else {
false
};
match result {
Ok(success) => {
ui_connection.password_changed(success, is_identity_protected);
if success && is_identity_protected != global_vars_read.is_identity_protected {
drop(global_vars_read);
let mut global_vars_write = global_vars.write().unwrap();
global_vars_write.is_identity_protected = is_identity_protected;
}
}
Err(e) => print_error!(e)
}
}
"disappear" => {
match Identity::delete_identity() {
Ok(_) => ui_connection.logout(),
Err(e) => print_error!(e)
}
}
_ => print_error!("Unknown websocket message: {}", msg)
}
});
}
}
Err(e) => {
match e {
tungstenite::Error::ConnectionClosed => {
*worker_done.write().unwrap() = true;
break;
}
_ => print_error!(e)
}
}
}
}
});
}
#[derive(Deserialize, Serialize, Debug)]
struct FileInfo {
uuid: String,
file_name: String,
}
fn handle_load_file(req: HttpRequest, file_info: web::Query<FileInfo>) -> HttpResponse {
match req.cookie(constants::HTTP_COOKIE_NAME) {
Some(cookie) => {
let global_vars = req.app_data::<Data<Arc<RwLock<GlobalVars>>>>().unwrap();
let global_vars = global_vars.read().unwrap();
if global_vars.http_session_manager.is_registered(cookie.value()) {
match Uuid::from_str(&file_info.uuid) {
Ok(uuid) => {
match global_vars.session_manager.load_file(uuid) {
Some(buffer) => {
return HttpResponse::Ok().header("Content-Disposition", format!("attachment; filename=\"{}\"", escape_double_quote(html_escape::decode_html_entities(&file_info.file_name).to_string()))).content_type("application/octet-stream").body(buffer);
}
None => {}
}
}
Err(e) => print_error!(e)
}
}
}
None => {}
}
HttpResponse::NotFound().finish()
}
async fn handle_send_file(req: HttpRequest, mut payload: Multipart) -> HttpResponse {
let cookie = req.cookie(constants::HTTP_COOKIE_NAME);
if cookie.is_some() {
let global_vars = req.app_data::<Data<Arc<RwLock<GlobalVars>>>>().unwrap();
let global_vars_read = global_vars.read().unwrap();
if global_vars_read.http_session_manager.is_registered(cookie.unwrap().value()) {
drop(global_vars_read); //releasing mutex while uploading the file
let mut session_id: Option<usize> = None;
while let Ok(Some(mut field)) = payload.try_next().await {
let content_disposition = field.content_disposition().unwrap();
if let Some(name) = content_disposition.get_name() {
if name == "session_id" {
if let Some(Ok(raw_id)) = field.next().await {
session_id = Some(std::str::from_utf8(&raw_id).unwrap().parse().unwrap());
}
} else if session_id.is_some() {
let filename = content_disposition.get_filename().unwrap();
let mut buffer = Vec::new();
while let Some(chunk) = field.next().await {
buffer.extend(chunk.unwrap());
}
let session_id = session_id.unwrap();
let global_vars_read = global_vars.read().unwrap();
match global_vars_read.session_manager.send_to(&session_id, protocol::file(filename, &buffer)).await {
Ok(_) => {
match global_vars_read.session_manager.store_file(&session_id, &buffer) {
Ok(file_uuid) => {
let msg = [&[protocol::Headers::FILE][..], file_uuid.as_bytes(), filename.as_bytes()].concat();
global_vars_read.session_manager.store_msg(&session_id, true, msg);
return HttpResponse::Ok().body(file_uuid.to_string());
}
Err(e) => print_error!(e)
}
}
Err(e) => print_error!(e)
}
}
}
}
}
}
HttpResponse::BadRequest().finish()
}
async fn handle_logout(req: HttpRequest) -> HttpResponse {
match req.cookie(constants::HTTP_COOKIE_NAME) {
Some(cookie) => {
let global_vars = req.app_data::<Data<Arc<RwLock<GlobalVars>>>>().unwrap();
let mut global_vars_write = global_vars.write().unwrap();
if global_vars_write.is_backend_running {
global_vars_write.http_session_manager.remove(cookie.value());
global_vars_write.session_manager.stop().await;
global_vars_write.is_backend_running = false;
}
if global_vars_write.is_identity_protected {
HttpResponse::Found().header(header::LOCATION, "/").finish()
} else {
HttpResponse::Ok().body(include_str!("frontend/logout.html"))
}
}
None => HttpResponse::Unauthorized().finish()
}
}
async fn login(identity: Identity, global_vars: &Arc<RwLock<GlobalVars>>) -> HttpResponse {
let mut global_vars_write = global_vars.write().unwrap();
let cookie_value = global_vars_write.http_session_manager.register();
if !global_vars_write.session_manager.is_identity_loaded() {
global_vars_write.session_manager.set_identity(Some(identity)).await;
}
let cookie = CookieBuilder::new(constants::HTTP_COOKIE_NAME, cookie_value)
.http_only(true)
.max_age(time::Duration::hours(4)
).finish();
HttpResponse::Found().header(header::LOCATION, "/").set_header(header::SET_COOKIE, cookie.to_string()).finish()
}
async fn on_identity_loaded(identity: Identity, global_vars: &Arc<RwLock<GlobalVars>>) -> HttpResponse {
match Identity::clear_temporary_files() {
Ok(_) => {},
Err(e) => print_error!(e)
}
login(identity, global_vars).await
}
async fn handle_login(req: HttpRequest, mut params: web::Form<LoginParams>) -> HttpResponse {
let response = match Identity::load_identity(Some(params.password.as_bytes())) {
Ok(identity) => {
let global_vars = req.app_data::<Data<Arc<RwLock<GlobalVars>>>>().unwrap();
on_identity_loaded(identity, global_vars).await
}
Err(e) => generate_login_response(Some(&e.to_string()))
};
params.password.zeroize();
response
}
fn get_login_body(error_msg: Option<&str>) -> Result<String, rusqlite::Error> {
Ok(include_str!("frontend/login.html")
.replace("ERROR_MSG", &match error_msg {
Some(error_msg) => format!("Error: {}.", error_msg),
None => String::new()
})
.replace("IDENTITY_NAME", &match Identity::get_identity_name() {
Ok(name) => format!("\"{}\"", html_escape::encode_double_quoted_attribute(&name)),
Err(e) => {
print_error!(e);
"null".to_owned()
}
}
)
)
}
fn generate_login_response(error_msg: Option<&str>) -> HttpResponse {
match get_login_body(error_msg) {
Ok(body) => HttpResponse::Ok().body(body),
Err(e) => {
print_error!(e);
HttpResponse::InternalServerError().body(e.to_string())
}
}
}
async fn handle_create(req: HttpRequest, mut params: web::Form<CreateParams>) -> HttpResponse {
let response = if params.password == params.password_confirm {
match Identity::create_identidy(
&params.name,
if params.password.len() == 0 { //no password
None
} else {
Some(params.password.as_bytes())
}
) {
Ok(identity) => {
let global_vars = req.app_data::<Data<Arc<RwLock<GlobalVars>>>>().unwrap();
login(identity, global_vars.get_ref()).await
}
Err(e) => {
print_error!(e);
generate_login_response(Some(&e.to_string()))
}
}
} else {
generate_login_response(Some("Passwords don't match"))
};
params.password.zeroize();
params.password_confirm.zeroize();
response
}
async fn index_not_logged_in(global_vars: &Arc<RwLock<GlobalVars>>) -> HttpResponse {
let global_vars_read = global_vars.read().unwrap();
let is_protected = global_vars_read.is_identity_protected;
drop(global_vars_read);
if is_protected {
generate_login_response(None)
} else {
match Identity::load_identity(None) {
Ok(identity) => on_identity_loaded(identity, global_vars).await,
Err(_) => generate_login_response(None) //assuming no identity
}
}
}
async fn handle_index(req: HttpRequest) -> HttpResponse {
let global_vars = req.app_data::<Data<Arc<RwLock<GlobalVars>>>>().unwrap();
match req.cookie(constants::HTTP_COOKIE_NAME) {
Some(cookie) => {
let global_vars_read = global_vars.read().unwrap();
if global_vars_read.http_session_manager.is_registered(cookie.value()) {
HttpResponse::Ok().body(
include_str!("frontend/index.html")
.replace("WEBSOCKET_PORT", &global_vars_read.websocket_port.to_string())
.replace("IS_IDENTITY_PROTECTED", &global_vars_read.is_identity_protected.to_string())
)
} else {
drop(global_vars_read);
index_not_logged_in(global_vars).await
}
}
None => index_not_logged_in(global_vars).await
}
}
const JS_CONTENT_TYPE: &str = "text/javascript";
fn handle_static(req: HttpRequest) -> HttpResponse {
let splits: Vec<&str> = req.path()[1..].split("/").collect();
if splits[0] == "static" {
let mut response_builder = HttpResponse::Ok();
match splits[1] {
"imgs" => {
if splits[2] == "icons" && splits.len() <= 5 {
let color = if splits.len() == 5 {
splits[4]
} else {
"none"
};
match match splits[3] {
"verified" => Some(include_str!("frontend/imgs/icons/verified.svg")),
"add_contact" => Some(include_str!("frontend/imgs/icons/add_contact.svg")),
"remove_contact" => Some(include_str!("frontend/imgs/icons/remove_contact.svg")),
"logout" => Some(include_str!("frontend/imgs/icons/logout.svg")),
"warning" => Some(include_str!("frontend/imgs/icons/warning.svg")),
"attach" => Some(include_str!("frontend/imgs/icons/attach.svg")),
"download" => Some(include_str!("frontend/imgs/icons/download.svg")),
"cancel" => Some(include_str!("frontend/imgs/icons/cancel.svg")),
"refresh" => Some(include_str!("frontend/imgs/icons/refresh.svg")),
"delete_conversation" => Some(include_str!("frontend/imgs/icons/delete_conversation.svg")),
_ => None
} {
Some(body) => {
response_builder.content_type("image/svg+xml");
return response_builder.body(body.replace("FILL_COLOR", color))
}
None => {}
}
} else if splits.len() == 3 {
match splits[2] {
"wallpaper" => return response_builder.content_type("image/jpeg").body(&include_bytes!("frontend/imgs/wallpaper.jpeg")[..]),
"frog" => return response_builder.content_type("image/png").body(&include_bytes!("frontend/imgs/frog.png")[..]),
_ => {}
}
}
}
"fonts" => {
if splits.len() == 3 {
match splits[2] {
"TwitterColorEmoji.ttf" => return response_builder.body(&include_bytes!("frontend/fonts/TwitterColorEmoji.ttf")[..]),
_ => {}
}
}
}
"commons" => {
if splits.len() == 3 {
match splits[2] {
"script.js" => return response_builder.content_type(JS_CONTENT_TYPE).body(include_str!("frontend/commons/script.js")),
"style.css" => return response_builder.body(include_str!("frontend/commons/style.css")),
_ => {}
}
}
}
"libs" => {
if splits.len() == 3 {
match match splits[2] {
"linkify.min.js" => Some(include_str!("frontend/libs/linkify.min.js")),
"linkify-element.min.js" => Some(include_str!("frontend/libs/linkify-element.min.js")),
_ => None
} {
Some(body) => return response_builder.content_type(JS_CONTENT_TYPE).body(body),
None => {}
}
}
}
_ => {}
}
}
HttpResponse::NotFound().finish()
}
#[actix_web::main]
async fn start_http_server(global_vars: Arc<RwLock<GlobalVars>>) -> io::Result<()> {
let http_addr = env::var("AIRA_HTTP_ADDR").unwrap_or("127.0.0.1".to_owned()).parse().expect("AIRA_HTTP_ADDR invalid");
let http_port = match env::var("AIRA_HTTP_PORT") {
Ok(port) => port.parse().expect("AIRA_HTTP_PORT invalid"),
Err(_) => constants::UI_PORT
};
let server = HttpServer::new(move || {
let global_vars_clone = global_vars.clone();
App::new()
.data(global_vars_clone)
.service(web::resource("/")
.route(web::get().to(handle_index))
.route(web::post().to(handle_create))
)
.route("/login", web::post().to(handle_login))
.route("/send_file", web::post().to(handle_send_file))
.route("/load_file", web::get().to(handle_load_file))
.route("/static/.*", web::get().to(handle_static))
.route("/logout", web::get().to(handle_logout))
}
).bind(SocketAddr::new(http_addr, http_port))?;
let url = format!("http://127.0.0.1:{}", http_port);
println!("AIRA started on: {}", url);
if webbrowser::open(&url).is_err() {
println!("Failed to open browser. Please open the link manually.");
}
server.run().await
}
#[derive(Serialize, Deserialize)]
struct LoginParams {
password: String,
}
#[derive(Serialize, Deserialize)]
struct CreateParams {
name: String,
password: String,
password_confirm: String,
}
struct HttpSessionsManager {
http_sessions: Vec<String>,
}
impl HttpSessionsManager {
fn get_index(&self, cookie: &str) -> Option<usize> {
self.http_sessions.iter().position(|c| c == cookie)
}
pub fn new() -> HttpSessionsManager {
HttpSessionsManager {
http_sessions: Vec::new()
}
}
pub fn register(&mut self) -> String {
let mut raw_cookie = [0; 32];
OsRng.fill_bytes(&mut raw_cookie);
let cookie = base64::encode(raw_cookie);
self.http_sessions.push(cookie.clone());
cookie
}
pub fn remove(&mut self, cookie: &str) -> Option<String> {
Some(self.http_sessions.remove(self.get_index(cookie)?))
}
pub fn is_registered(&self, cookie: &str) -> bool {
self.get_index(cookie).is_some()
}
}
struct GlobalVars {
session_manager: Arc<SessionManager>,
is_backend_running: bool,
websocket_port: u16,
is_identity_protected: bool,
http_session_manager: HttpSessionsManager,
}
#[tokio::main]
async fn main() {
match fs::create_dir(Path::new(&dirs::data_local_dir().unwrap()).join(constants::APPLICATION_FOLDER)) {
Ok(_) => {}
Err(e) => {
if e.kind() != io::ErrorKind::AlreadyExists {
print_error!(e);
}
}
}
let global_vars = Arc::new(RwLock::new(GlobalVars {
session_manager: Arc::new(SessionManager::new()),
is_backend_running: false,
websocket_port: 0,
is_identity_protected: Identity::is_protected().unwrap_or(false),
http_session_manager: HttpSessionsManager::new(),
}));
let websocket_port = start_websocket_server(global_vars.clone()).await;
global_vars.write().unwrap().websocket_port = websocket_port;
start_http_server(global_vars).unwrap();
}

483
src/session_manager/mod.rs Normal file
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@ -0,0 +1,483 @@
mod session;
pub mod protocol;
use std::{collections::HashMap, net::{IpAddr, SocketAddr}, io, sync::{Mutex, RwLock, Arc}};
use tokio::{net::{TcpListener, TcpStream}, sync::{mpsc, mpsc::Sender}};
use session::Session;
use strum_macros::Display;
use ed25519_dalek::PUBLIC_KEY_LENGTH;
use uuid::Uuid;
use crate::{constants, identity::{Contact, Identity}, print_error};
use crate::ui_interface::UiConnection;
#[derive(Display, Debug, PartialEq, Eq)]
pub enum SessionError {
ConnectionReset,
BrokenPipe,
TransmissionCorrupted,
BufferTooLarge,
InvalidSessionId,
Unknown
}
enum SessionCommand {
Send {
buff: Vec<u8>
},
Close,
}
pub struct SessionManager {
session_counter: RwLock<usize>,
sessions: RwLock<HashMap<usize, (bool ,[u8; PUBLIC_KEY_LENGTH], mpsc::Sender<SessionCommand>)>>,
identity: RwLock<Option<Identity>>,
ui_connection: Mutex<Option<UiConnection>>,
loaded_contacts: RwLock<HashMap<usize, Contact>>,
pub last_loaded_msg_offsets: RwLock<HashMap<usize, usize>>,
pub saved_msgs: Mutex<HashMap<usize, Vec<(bool, Vec<u8>)>>>,
not_seen: RwLock<Vec<usize>>,
listener_stop_signal: Mutex<Option<Sender<()>>>,
}
impl SessionManager {
fn with_ui_connection<F>(&self, f: F) where F: Fn(&mut UiConnection) {
let mut ui_connection_opt = self.ui_connection.lock().unwrap();
match ui_connection_opt.as_mut() {
Some(ui_connection) => if ui_connection.is_valid {
f(ui_connection);
}
None => {}
}
}
pub async fn connect_to(session_manager: Arc<SessionManager>, ip: IpAddr) -> io::Result<()> {
let stream = TcpStream::connect(SocketAddr::new(ip, constants::PORT)).await?;
SessionManager::handle_new_session(session_manager, Session::new(stream), true);
Ok(())
}
pub fn store_msg(&self, session_id: &usize, outgoing: bool, buffer: Vec<u8>) {
let mut msg_saved = false;
if self.is_contact(session_id) {
match self.identity.read().unwrap().as_ref().unwrap().store_msg(&self.loaded_contacts.read().unwrap().get(session_id).unwrap().uuid, outgoing, &buffer) {
Ok(_) => {
msg_saved = true;
*self.last_loaded_msg_offsets.write().unwrap().get_mut(session_id).unwrap() += 1;
},
Err(e) => print_error!(e),
}
}
if !msg_saved {
self.saved_msgs.lock().unwrap().get_mut(&session_id).unwrap().push((false, buffer));
}
}
pub async fn send_to(&self, session_id: &usize, message: Vec<u8>) -> Result<(), SessionError> {
let sender = {
let mut sessions = self.sessions.write().unwrap();
match sessions.get_mut(session_id) {
Some(session_data) => session_data.2.clone(),
None => return Err(SessionError::InvalidSessionId)
}
};
match sender.send(SessionCommand::Send {
buff: message
}).await {
Ok(_) => Ok(()),
Err(e) => {
print_error!(e);
Err(SessionError::BrokenPipe)
}
}
}
fn handle_new_session(session_manager: Arc<SessionManager>, mut session: Session, outgoing: bool) {
tokio::spawn(async move {
let mut peer_public_key = [0; PUBLIC_KEY_LENGTH];
let session = {
let identity = {
let identity_opt = session_manager.identity.read().unwrap();
match identity_opt.as_ref() {
Some(identity) => Some(identity.clone()),
None => None
}
};
match identity {
Some(identity) => {
match session.do_handshake(&identity).await {
Ok(_) => {
peer_public_key = session.peer_public_key.unwrap();
if identity.get_public_key() != peer_public_key {
Some(session)
} else {
None
}
}
Err(e) => {
print_error!(e);
None
}
}
}
None => None
}
};
if let Some(mut session) = session {
let mut is_contact = false;
let session_data = {
let mut sessions = session_manager.sessions.write().unwrap();
let mut is_new_session = true;
for (_, registered_session) in sessions.iter() {
if registered_session.1 == peer_public_key { //already connected with a different addr
is_new_session = false;
break;
}
}
if is_new_session {
let (sender, receiver) = mpsc::channel(32);
let mut session_id = None;
for (i, contact) in session_manager.loaded_contacts.read().unwrap().iter() {
if contact.public_key == peer_public_key { //session is a known contact. Assign the contact session_id to it
sessions.insert(*i, (outgoing, peer_public_key, sender.clone()));
is_contact = true;
session_id = Some(*i);
}
}
if session_id.is_none() { //if not a contact, increment the session_counter
let mut session_counter = session_manager.session_counter.write().unwrap();
sessions.insert(*session_counter, (outgoing, peer_public_key, sender));
session_id = Some(*session_counter);
*session_counter += 1;
}
let session_id = session_id.unwrap();
session_manager.saved_msgs.lock().unwrap().insert(session_id, Vec::new());
Some((session_id, receiver))
} else {
None
}
};
if let Some(session_data) = session_data {
let (session_id, mut receiver) = session_data;
session_manager.with_ui_connection(|ui_connection| {
ui_connection.on_new_session(session_id, outgoing);
});
if !is_contact {
match session.encrypt_and_send(&protocol::ask_name()).await {
Ok(_) => {}
Err(e) => {
print_error!(e);
return;
}
}
}
loop {
tokio::select! {
buffer = session.receive_and_decrypt() => {
match buffer {
Ok(buffer) => {
if buffer[0] == protocol::Headers::ASK_NAME {
let name = {
session_manager.identity.read().unwrap().as_ref().unwrap().name.clone()
};
match session.encrypt_and_send(&protocol::tell_name(&name)).await {
Ok(_) => {}
Err(e) => {
print_error!(e);
session.close();
break;
}
}
} else {
let buffer = if buffer[0] == protocol::Headers::FILE {
let file_name_len = u16::from_be_bytes([buffer[1], buffer[2]]) as usize;
let file_name = &buffer[3..3+file_name_len];
match session_manager.store_file(&session_id, &buffer[3+file_name_len..]) {
Ok(file_uuid) => {
Some([&[protocol::Headers::FILE][..], file_uuid.as_bytes(), file_name].concat())
}
Err(e) => {
print_error!(e);
None
}
}
} else {
Some(buffer)
};
if buffer.is_some() {
if buffer.as_ref().unwrap()[0] != protocol::Headers::TELL_NAME {
session_manager.set_seen(session_id, false);
}
session_manager.with_ui_connection(|ui_connection| {
ui_connection.on_received(&session_id, buffer.as_ref().unwrap());
});
if session_manager.is_contact(&session_id) {
if buffer.as_ref().unwrap()[0] == protocol::Headers::TELL_NAME {
match std::str::from_utf8(&buffer.as_ref().unwrap()[1..]) {
Ok(new_name) => {
let mut loaded_contacts = session_manager.loaded_contacts.write().unwrap();
let contact = loaded_contacts.get_mut(&session_id).unwrap();
contact.name = new_name.to_string();
match session_manager.identity.read().unwrap().as_ref().unwrap().change_contact_name(&contact.uuid, new_name) {
Ok(_) => {}
Err(e) => print_error!(e)
}
}
Err(e) => print_error!(e)
}
}
}
session_manager.store_msg(&session_id, false, buffer.unwrap());
}
}
}
Err(e) => {
if e != SessionError::BrokenPipe && e != SessionError::ConnectionReset {
print_error!(e);
}
session_manager.with_ui_connection(|ui_connection| {
ui_connection.on_disconnected(session_id);
});
break;
}
}
}
command = receiver.recv() => {
match command.unwrap() {
SessionCommand::Send { buff } => {
match session.encrypt_and_send(&buff).await {
Ok(_) => session_manager.with_ui_connection(|ui_connection| {
ui_connection.on_msg_sent(session_id, &buff);
}),
Err(e) => print_error!(e)
}
}
SessionCommand::Close => {
session.close();
break;
}
}
}
else => {
println!("{} dead", session_id);
break;
}
}
}
session_manager.sessions.write().unwrap().remove(&session_id);
session_manager.saved_msgs.lock().unwrap().remove(&session_id);
session_manager.not_seen.write().unwrap().retain(|x| *x != session_id);
}
}
});
}
pub async fn start_listener(session_manager: Arc<SessionManager>) -> io::Result<()> {
let server_v6 = TcpListener::bind(SocketAddr::new("::1".parse().unwrap(), constants::PORT)).await?;
let server_v4 = TcpListener::bind(SocketAddr::new("0.0.0.0".parse().unwrap(), constants::PORT)).await?;
let (sender, mut receiver) = mpsc::channel(1);
*session_manager.listener_stop_signal.lock().unwrap() = Some(sender);
tokio::spawn(async move {
loop {
let (stream, _addr) = (tokio::select! {
client = server_v6.accept() => client,
client = server_v4.accept() => client,
_ = receiver.recv() => break
}).unwrap();
SessionManager::handle_new_session(session_manager.clone(), Session::new(stream), false);
}
});
Ok(())
}
pub fn list_sessions(&self) -> Vec<(usize, bool)> {
let sessions = self.sessions.read().unwrap();
sessions.iter().map(|t| (*t.0, t.1.0)).collect()
}
pub fn list_contacts(&self) -> Vec<(usize, String, bool)> {
self.loaded_contacts.read().unwrap().iter().map(|c| (*c.0, c.1.name.clone(), c.1.verified)).collect()
}
pub fn get_saved_msgs(&self) -> HashMap<usize, Vec<(bool, Vec<u8>)>> {
self.saved_msgs.lock().unwrap().clone()
}
pub fn get_peer_public_key(&self, session_id: &usize) -> Option<[u8; PUBLIC_KEY_LENGTH]> {
let sessions = self.sessions.read().unwrap();
let session = sessions.get(session_id)?;
Some(session.1)
}
pub fn list_not_seen(&self) -> Vec<usize> {
self.not_seen.read().unwrap().clone()
}
pub fn set_seen(&self, session_id: usize, seen: bool) {
let mut not_seen = self.not_seen.write().unwrap();
if seen {
not_seen.retain(|i| i != &session_id)
} else if !not_seen.contains(&session_id) {
not_seen.push(session_id);
}
let mut loaded_contacts = self.loaded_contacts.write().unwrap();
match loaded_contacts.get_mut(&session_id) {
Some(contact) => {
if contact.seen != seen {
match self.identity.read().unwrap().as_ref().unwrap().set_contact_seen(&contact.uuid, seen) {
Ok(_) => contact.seen = seen,
Err(e) => print_error!(e)
}
}
}
None => {}
}
}
pub fn add_contact(&self, session_id: usize, name: String) -> Result<(), rusqlite::Error> {
let contact = self.identity.read().unwrap().as_ref().unwrap().add_contact(name, self.get_peer_public_key(&session_id).unwrap())?;
self.loaded_contacts.write().unwrap().insert(session_id, contact);
self.last_loaded_msg_offsets.write().unwrap().insert(session_id, 0);
Ok(())
}
pub fn remove_contact(&self, session_id: &usize) -> Result<usize, rusqlite::Error> {
let mut loaded_contacts = self.loaded_contacts.write().unwrap();
let result = Identity::remove_contact(&loaded_contacts.get(session_id).unwrap().uuid);
if result.is_ok() {
loaded_contacts.remove(session_id);
self.last_loaded_msg_offsets.write().unwrap().remove(session_id);
}
result
}
pub fn set_verified(&self, session_id: &usize) -> Result<usize, rusqlite::Error> {
let mut loaded_contacts = self.loaded_contacts.write().unwrap();
let contact = loaded_contacts.get_mut(session_id).unwrap();
let result = self.identity.read().unwrap().as_ref().unwrap().set_verified(&contact.uuid);
if result.is_ok() {
contact.verified = true;
}
result
}
pub fn delete_conversation(&self, session_id: usize) -> Result<usize, rusqlite::Error> {
let result = Identity::delete_conversation(&self.loaded_contacts.read().unwrap().get(&session_id).unwrap().uuid);
if result.is_ok() {
self.last_loaded_msg_offsets.write().unwrap().insert(session_id, 0);
self.saved_msgs.lock().unwrap().insert(session_id, Vec::new());
}
result
}
pub fn is_contact(&self, session_id: &usize) -> bool {
self.loaded_contacts.read().unwrap().contains_key(session_id)
}
pub fn load_file(&self, uuid: Uuid) -> Option<Vec<u8>> {
self.identity.read().unwrap().as_ref().unwrap().load_file(uuid)
}
pub fn store_file(&self, session_id: &usize, data: &[u8]) -> Result<Uuid, rusqlite::Error> {
self.identity.read().unwrap().as_ref().unwrap().store_file(match self.loaded_contacts.read().unwrap().get(session_id) {
Some(contact) => Some(contact.uuid),
None => None
}, data)
}
pub fn load_msgs(&self, session_id: &usize, count: usize) -> Option<Vec<(bool, Vec<u8>)>> {
let mut offsets = self.last_loaded_msg_offsets.write().unwrap();
let msgs = self.identity.read().unwrap().as_ref().unwrap().load_msgs(&self.loaded_contacts.read().unwrap().get(session_id).unwrap().uuid, *offsets.get(session_id).unwrap(), count);
if msgs.is_some() {
*offsets.get_mut(session_id).unwrap() += msgs.as_ref().unwrap().len();
}
msgs
}
pub fn get_public_keys(&self, session_id: &usize) -> ([u8; PUBLIC_KEY_LENGTH], [u8; PUBLIC_KEY_LENGTH]) {
(self.identity.read().unwrap().as_ref().unwrap().get_public_key(), self.loaded_contacts.read().unwrap().get(session_id).unwrap().public_key)
}
pub fn get_my_name(&self) -> String {
self.identity.read().unwrap().as_ref().unwrap().name.clone()
}
#[allow(unused_must_use)]
pub async fn change_name(&self, new_name: String) -> Result<usize, rusqlite::Error> {
let telling_name = protocol::tell_name(&new_name);
let result = self.identity.write().unwrap().as_mut().unwrap().change_name(new_name);
if result.is_ok() {
let senders: Vec<Sender<SessionCommand>> = {
self.sessions.read().unwrap().iter().map(|i| i.1.2.clone()).collect()
};
for sender in senders.into_iter() {
sender.send(SessionCommand::Send {
buff: telling_name.clone()
}).await;
}
}
result
}
#[allow(unused_must_use)]
pub async fn stop(&self) {
self.listener_stop_signal.lock().unwrap().as_ref().unwrap().send(()).await;
self.set_identity(None).await;
for (_, _, sender) in self.sessions.read().unwrap().values() {
sender.send(SessionCommand::Close).await;
}
*self.ui_connection.lock().unwrap() = None;
*self.session_counter.write().unwrap() = 0;
self.loaded_contacts.write().unwrap().clear();
self.saved_msgs.lock().unwrap().clear();
}
pub fn is_identity_loaded(&self) -> bool {
self.identity.read().unwrap().is_some()
}
#[allow(unused_must_use)]
pub async fn set_identity(&self, identity: Option<Identity>) {
let mut identity_guard = self.identity.write().unwrap();
if identity.is_none() { //logout
identity_guard.as_mut().unwrap().zeroize();
}
*identity_guard = identity;
if identity_guard.is_some() { //login
match identity_guard.as_ref().unwrap().load_contacts() {
Some(contacts) => {
let mut loaded_contacts = self.loaded_contacts.write().unwrap();
let mut session_counter = self.session_counter.write().unwrap();
let mut not_seen = self.not_seen.write().unwrap();
contacts.into_iter().for_each(|contact| {
if !contact.seen {
not_seen.push(*session_counter);
}
loaded_contacts.insert(*session_counter, contact);
*session_counter += 1;
})
}
None => {}
}
}
}
pub fn set_ui_connection(&self, ui_connection: UiConnection){
*self.ui_connection.lock().unwrap() = Some(ui_connection);
}
pub fn new() -> SessionManager {
SessionManager {
session_counter: RwLock::new(0),
sessions: RwLock::new(HashMap::new()),
identity: RwLock::new(None),
ui_connection: Mutex::new(None),
loaded_contacts: RwLock::new(HashMap::new()),
last_loaded_msg_offsets: RwLock::new(HashMap::new()),
saved_msgs: Mutex::new(HashMap::new()),
not_seen: RwLock::new(Vec::new()),
listener_stop_signal: Mutex::new(None),
}
}
}

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@ -0,0 +1,24 @@
pub struct Headers;
impl Headers {
pub const MESSAGE: u8 = 0x01;
pub const ASK_NAME: u8 = 0x02;
pub const TELL_NAME: u8 = 0x03;
pub const FILE: u8 = 0x04;
}
pub fn new_message(message: String) -> Vec<u8> {
[&[Headers::MESSAGE], message.as_bytes()].concat()
}
pub fn ask_name() -> Vec<u8> {
vec![Headers::ASK_NAME]
}
pub fn tell_name(name: &str) -> Vec<u8> {
[&[Headers::TELL_NAME], name.as_bytes()].concat()
}
pub fn file(file_name: &str, buffer: &[u8]) -> Vec<u8> {
[&[Headers::FILE], &(file_name.len() as u16).to_be_bytes()[..], file_name.as_bytes(), buffer].concat()
}

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@ -0,0 +1,254 @@
use std::{io::ErrorKind, convert::TryInto};
use tokio::{net::TcpStream, io::{AsyncReadExt, AsyncWriteExt}};
use ed25519_dalek;
use ed25519_dalek::{ed25519::signature::Signature, Verifier, PUBLIC_KEY_LENGTH, SIGNATURE_LENGTH};
use x25519_dalek;
use rand_7::{RngCore, rngs::OsRng};
use sha2::{Sha384, Digest};
use aes_gcm::{Aes128Gcm, aead::Aead, NewAead, aead::Payload, aead::generic_array::GenericArray};
use crate::utils::*;
use crate::crypto::*;
use crate::identity::Identity;
use crate::session_manager::SessionError;
use crate::print_error;
const RANDOM_LEN: usize = 64;
const MESSAGE_LEN_LEN: usize = 4;
type MessageLenType = u32;
pub struct Session {
stream: TcpStream,
handshake_sent_buff: Vec<u8>,
handshake_recv_buff: Vec<u8>,
local_cipher: Option<Aes128Gcm>,
local_iv: Option<[u8; IV_LEN]>,
local_counter: usize,
peer_cipher: Option<Aes128Gcm>,
peer_iv: Option<[u8; IV_LEN]>,
peer_counter: usize,
pub peer_public_key: Option<[u8; PUBLIC_KEY_LENGTH]>,
}
impl Session {
const PADDED_MAX_SIZE: usize = 32768000;
const MAX_RECV_SIZE: usize = MESSAGE_LEN_LEN + Session::PADDED_MAX_SIZE + AES_TAG_LEN;
pub fn new(stream: TcpStream) -> Session {
//stream.set_read_timeout(Some(Duration::from_millis(1000))).unwrap();
Session {
stream: stream,
handshake_sent_buff: Vec::new(),
handshake_recv_buff: Vec::new(),
local_cipher: None,
local_iv: None,
local_counter: 0,
peer_cipher: None,
peer_iv: None,
peer_counter: 0,
peer_public_key: None,
}
}
async fn socket_read(&mut self, buff: &mut [u8]) -> Result<usize, SessionError> {
match self.stream.read(buff).await {
Ok(read) => {
if read > 0 {
Ok(read)
} else {
Err(SessionError::BrokenPipe)
}
}
Err(e) => {
match e.kind() {
ErrorKind::ConnectionReset => Err(SessionError::ConnectionReset),
_ => {
print_error!("Receive error ({:?}): {}", e.kind(), e);
Err(SessionError::Unknown)
}
}
}
}
}
async fn socket_write(&mut self, buff: &[u8]) -> Result<(), SessionError> {
match self.stream.write_all(buff).await {
Ok(_) => Ok(()),
Err(e) => Err(match e.kind() {
ErrorKind::BrokenPipe => SessionError::BrokenPipe,
ErrorKind::ConnectionReset => SessionError::ConnectionReset,
_ => {
print_error!("Send error ({:?}): {}", e.kind(), e);
SessionError::Unknown
}
})
}
}
async fn handshake_read(&mut self, buff: &mut [u8]) -> Result<(), SessionError> {
self.socket_read(buff).await?;
self.handshake_recv_buff.extend(buff.as_ref());
Ok(())
}
async fn handshake_write(&mut self, buff: &[u8]) -> Result<(), SessionError> {
self.socket_write(buff).await?;
self.handshake_sent_buff.extend(buff);
Ok(())
}
fn hash_handshake(&self, i_am_bob: bool) -> [u8; 48] {
let handshake_bytes = if i_am_bob {
[self.handshake_sent_buff.as_slice(), self.handshake_recv_buff.as_slice()].concat()
} else {
[self.handshake_recv_buff.as_slice(), self.handshake_sent_buff.as_slice()].concat()
};
let mut hasher = Sha384::new();
hasher.update(handshake_bytes);
let handshake_hash = hasher.finalize();
to_array_48(handshake_hash.as_slice())
}
fn on_handshake_successful(&mut self, application_keys: ApplicationKeys){
self.local_cipher = Some(Aes128Gcm::new_varkey(&application_keys.local_key).unwrap());
self.local_iv = Some(application_keys.local_iv);
self.peer_cipher = Some(Aes128Gcm::new_varkey(&application_keys.peer_key).unwrap());
self.peer_iv = Some(application_keys.peer_iv);
self.handshake_sent_buff.clear();
self.handshake_sent_buff.shrink_to_fit();
self.handshake_recv_buff.clear();
self.handshake_recv_buff.shrink_to_fit();
}
pub async fn do_handshake(&mut self, identity: &Identity) -> Result<(), SessionError> {
//ECDHE initial exchange
//generate random bytes
let mut handshake_buffer = [0; RANDOM_LEN+PUBLIC_KEY_LENGTH];
OsRng.fill_bytes(&mut handshake_buffer[..RANDOM_LEN]);
//generate ephemeral x25519 keys
let ephemeral_secret = x25519_dalek::EphemeralSecret::new(OsRng);
let ephemeral_public_key = x25519_dalek::PublicKey::from(&ephemeral_secret);
handshake_buffer[RANDOM_LEN..].copy_from_slice(&ephemeral_public_key.to_bytes());
self.handshake_write(&handshake_buffer).await?;
self.handshake_read(&mut handshake_buffer).await?;
let peer_ephemeral_public_key = x25519_dalek::PublicKey::from(to_array_32(&handshake_buffer[RANDOM_LEN..]));
//calc handshake keys
let i_am_bob = self.handshake_sent_buff < self.handshake_recv_buff; //mutual consensus for keys attribution
let handshake_hash = self.hash_handshake(i_am_bob);
let shared_secret = ephemeral_secret.diffie_hellman(&peer_ephemeral_public_key);
let handshake_keys = HandshakeKeys::derive_keys(shared_secret.to_bytes(), handshake_hash, i_am_bob);
//encrypted handshake
//generate random bytes
let mut random_bytes = [0; RANDOM_LEN];
OsRng.fill_bytes(&mut random_bytes);
self.handshake_write(&random_bytes).await?;
drop(random_bytes);
//receive peer random bytes
let mut peer_random = [0; RANDOM_LEN];
self.handshake_read(&mut peer_random).await?;
drop(peer_random);
//get public key & sign our ephemeral public key
let mut auth_msg = [0; PUBLIC_KEY_LENGTH+SIGNATURE_LENGTH];
auth_msg[..PUBLIC_KEY_LENGTH].copy_from_slice(&identity.get_public_key());
auth_msg[PUBLIC_KEY_LENGTH..].copy_from_slice(&identity.sign(ephemeral_public_key.as_bytes()));
//encrypt auth_msg
let local_cipher = Aes128Gcm::new_varkey(&handshake_keys.local_key).unwrap();
let mut local_handshake_counter = 0;
let nonce = iv_to_nonce(&handshake_keys.local_iv, &mut local_handshake_counter);
let encrypted_auth_msg = local_cipher.encrypt(GenericArray::from_slice(&nonce), auth_msg.as_ref()).unwrap();
self.handshake_write(&encrypted_auth_msg).await?;
let mut encrypted_peer_auth_msg = [0; PUBLIC_KEY_LENGTH+SIGNATURE_LENGTH+AES_TAG_LEN];
self.handshake_read(&mut encrypted_peer_auth_msg).await?;
//decrypt peer_auth_msg
let peer_cipher = Aes128Gcm::new_varkey(&handshake_keys.peer_key).unwrap();
let mut peer_handshake_counter = 0;
let peer_nonce = iv_to_nonce(&handshake_keys.peer_iv, &mut peer_handshake_counter);
match peer_cipher.decrypt(GenericArray::from_slice(&peer_nonce), encrypted_peer_auth_msg.as_ref()) {
Ok(peer_auth_msg) => {
//verify ephemeral public key signature
self.peer_public_key = Some(to_array_32(&peer_auth_msg[..PUBLIC_KEY_LENGTH]));
let peer_public_key = ed25519_dalek::PublicKey::from_bytes(&self.peer_public_key.unwrap()).unwrap();
let peer_signature = Signature::from_bytes(&peer_auth_msg[PUBLIC_KEY_LENGTH..]).unwrap();
if peer_public_key.verify(peer_ephemeral_public_key.as_bytes(), &peer_signature).is_ok() {
let handshake_hash = self.hash_handshake(i_am_bob);
//sending handshake finished
let handshake_finished = compute_handshake_finished(handshake_keys.local_handshake_traffic_secret, handshake_hash);
self.socket_write(&handshake_finished).await?;
let mut peer_handshake_finished = [0; HASH_OUTPUT_LEN];
self.socket_read(&mut peer_handshake_finished).await?;
if verify_handshake_finished(peer_handshake_finished, handshake_keys.peer_handshake_traffic_secret, handshake_hash) {
//calc application keys
let application_keys = ApplicationKeys::derive_keys(handshake_keys.handshake_secret, handshake_hash, i_am_bob);
self.on_handshake_successful(application_keys);
return Ok(());
}
}
}
Err(_) => {}
}
Err(SessionError::TransmissionCorrupted)
}
fn random_pad(message: &[u8]) -> Vec<u8> {
let encoded_msg_len = (message.len() as MessageLenType).to_be_bytes();
let msg_len = message.len()+encoded_msg_len.len();
let mut len = 1000;
while len < msg_len {
len *= 2;
}
let mut output = Vec::from(encoded_msg_len);
output.reserve(len);
output.extend(message);
output.resize(len, 0);
OsRng.fill_bytes(&mut output[msg_len..]);
output
}
fn unpad(input: Vec<u8>) -> Vec<u8> {
let msg_len = MessageLenType::from_be_bytes(input[0..MESSAGE_LEN_LEN].try_into().unwrap()) as usize;
Vec::from(&input[MESSAGE_LEN_LEN..MESSAGE_LEN_LEN+msg_len])
}
pub async fn encrypt_and_send(&mut self, message: &[u8]) -> Result<(), SessionError> {
let padded_msg = Session::random_pad(message);
let cipher_len = (padded_msg.len() as MessageLenType).to_be_bytes();
let payload = Payload {
msg: &padded_msg,
aad: &cipher_len
};
let nonce = iv_to_nonce(&self.local_iv.unwrap(), &mut self.local_counter);
let cipher_text = self.local_cipher.as_ref().unwrap().encrypt(GenericArray::from_slice(&nonce), payload).unwrap();
self.socket_write([&cipher_len, cipher_text.as_slice()].concat().as_slice()).await
}
pub async fn receive_and_decrypt(&mut self) -> Result<Vec<u8>, SessionError> {
let mut message_len = [0; MESSAGE_LEN_LEN];
self.socket_read(&mut message_len).await?;
let recv_len = MessageLenType::from_be_bytes(message_len) as usize + AES_TAG_LEN;
if recv_len <= Session::MAX_RECV_SIZE {
let mut cipher_text = vec![0; recv_len];
let mut read = 0;
while read < recv_len {
read += self.socket_read(&mut cipher_text[read..]).await?;
}
let peer_nonce = iv_to_nonce(&self.peer_iv.unwrap(), &mut self.peer_counter);
let peer_cipher = self.peer_cipher.as_ref().unwrap();
let payload = Payload {
msg: &cipher_text,
aad: &message_len
};
match peer_cipher.decrypt(GenericArray::from_slice(&peer_nonce), payload) {
Ok(plain_text) => Ok(Session::unpad(plain_text)),
Err(_) => Err(SessionError::TransmissionCorrupted)
}
} else {
Err(SessionError::BufferTooLarge)
}
}
pub fn close(self) {
drop(self.stream);
}
}

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use std::net::TcpStream;
use tungstenite::{WebSocket, protocol::Role, Message};
use crate::protocol;
mod ui_messages {
use std::{iter::FromIterator, str::from_utf8};
use tungstenite::Message;
use uuid::Uuid;
use crate::{print_error, session_manager::protocol, utils::to_uuid_bytes};
const ON_NEW_MESSAGE: &str = "new_message";
const LOAD_SENT_MESSAGE: &str = "load_sent_msg";
fn new_message(verb: &str, session_id: &usize, outgoing: bool, raw_message: &[u8]) -> Option<Message> {
match from_utf8(raw_message) {
Ok(msg) => Some(Message::from(format!("{} {} {} {}", verb, session_id, outgoing, msg))),
Err(e) => {
print_error!(e);
None
}
}
}
pub fn on_disconnected(session_id: usize) -> Message {
Message::from(format!("disconnected {}", session_id))
}
pub fn on_new_session(session_id: usize, outgoing: bool) -> Message {
Message::from(format!("new_session {} {}", session_id, outgoing))
}
pub fn on_file_received(session_id: &usize, buffer: &[u8]) -> Option<Message> {
let uuid = Uuid::from_bytes(to_uuid_bytes(&buffer[..16])?);
match from_utf8(&buffer[16..]) {
Ok(file_name) => Some(Message::from(format!("file {} {} {}", session_id, uuid.to_string(), file_name))),
Err(e) => {
print_error!(e);
None
}
}
}
pub fn on_new_message(session_id: &usize, outgoing: bool, buffer: &[u8]) -> Option<Message> {
new_message(ON_NEW_MESSAGE, session_id, outgoing, &buffer[1..])
}
pub fn load_msg(session_id: &usize, outgoing: bool, buffer: &[u8]) -> Option<Message> {
match buffer[0] {
protocol::Headers::MESSAGE => new_message(LOAD_SENT_MESSAGE, session_id, outgoing, &buffer[1..]),
protocol::Headers::TELL_NAME => on_name_told(session_id, &buffer[1..]),
protocol::Headers::FILE => {
let uuid = Uuid::from_bytes(to_uuid_bytes(&buffer[1..17])?);
match from_utf8(&buffer[17..]) {
Ok(file_name) => Some(Message::from(format!("load_sent_file {} {} {} {}", session_id, outgoing, uuid.to_string(), file_name))),
Err(e) => {
print_error!(e);
None
}
}
}
_ => None
}
}
pub fn set_not_seen(session_ids: Vec<usize>) -> Message {
Message::from("not_seen".to_owned()+&String::from_iter(session_ids.into_iter().map(|session_id| {
format!(" {}", session_id)
})))
}
pub fn on_name_told(session_id: &usize, raw_name: &[u8]) -> Option<Message> {
match from_utf8(raw_name) {
Ok(name) => Some(Message::from(format!("name_told {} {}", session_id, name))),
Err(e) => {
print_error!(e);
None
}
}
}
pub fn set_as_contact(session_id: usize, name: &str, verified: bool) -> Message {
Message::from(format!("is_contact {} {} {}", session_id, verified, name))
}
pub fn fingerprints(local: &str, peer: &str) -> Message {
Message::from(format!("fingerprints {} {}", local, peer))
}
pub fn set_name(new_name: &str) -> Message {
Message::from(format!("set_name {}", new_name))
}
pub fn password_changed(success: bool, is_protected: bool) -> Message {
Message::from(format!("password_changed {} {}", success, is_protected))
}
}
pub struct UiConnection{
pub websocket: WebSocket<TcpStream>,
pub is_valid: bool
}
impl UiConnection {
pub fn from_raw_socket(stream: TcpStream) -> UiConnection {
let websocket = WebSocket::from_raw_socket(stream, Role::Server, None);
UiConnection::new(websocket)
}
pub fn new(websocket: WebSocket<TcpStream>) -> UiConnection {
UiConnection {
websocket: websocket,
is_valid: true
}
}
pub fn write_message(&mut self, message: Message) {
if self.websocket.write_message(message).is_err() {
self.is_valid = false
}
}
pub fn on_received(&mut self, session_id: &usize, buffer: &[u8]) {
let ui_message = match buffer[0] {
protocol::Headers::MESSAGE => ui_messages::on_new_message(session_id, false, buffer),
protocol::Headers::TELL_NAME => ui_messages::on_name_told(session_id, &buffer[1..]),
protocol::Headers::FILE => ui_messages::on_file_received(session_id, &buffer[1..]),
_ => None
};
if ui_message.is_some() {
self.write_message(ui_message.unwrap())
}
}
pub fn on_msg_sent(&mut self, session_id: usize, buffer: &[u8]) {
if buffer[0] == protocol::Headers::MESSAGE {
match ui_messages::on_new_message(&session_id, true, buffer) {
Some(msg) => self.write_message(msg),
None => {}
}
}
}
pub fn on_new_session(&mut self, session_id: usize, outgoing: bool) {
self.write_message(ui_messages::on_new_session(session_id, outgoing));
}
pub fn on_disconnected(&mut self, session_id: usize) {
self.write_message(ui_messages::on_disconnected(session_id));
}
pub fn set_as_contact(&mut self, session_id: usize, name: &str, verified: bool) {
self.write_message(ui_messages::set_as_contact(session_id, name, verified));
}
pub fn load_msgs(&mut self, session_id: &usize, msgs: &Vec<(bool, Vec<u8>)>) {
msgs.into_iter().rev().for_each(|msg| {
match ui_messages::load_msg(session_id, msg.0, &msg.1) {
Some(msg) => self.write_message(msg),
None => {}
}
})
}
pub fn set_not_seen(&mut self, session_ids: Vec<usize>) {
self.write_message(ui_messages::set_not_seen(session_ids));
}
pub fn fingerprints(&mut self, local: &str, peer: &str) {
self.write_message(ui_messages::fingerprints(local, peer));
}
pub fn set_name(&mut self, new_name: &str) {
self.write_message(ui_messages::set_name(new_name));
}
pub fn password_changed(&mut self, success: bool, is_protected: bool) {
self.write_message(ui_messages::password_changed(success, is_protected));
}
pub fn logout(&mut self) {
self.write_message(Message::from("logout"));
}
}

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src/utils.rs Normal file
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use std::convert::TryInto;
use uuid::Bytes;
use crate::print_error;
pub fn to_array_48(s: &[u8]) -> [u8; 48] {
s.try_into().unwrap()
}
pub fn to_array_32(s: &[u8]) -> [u8; 32] {
s.try_into().unwrap()
}
pub fn to_uuid_bytes(bytes: &[u8]) -> Option<Bytes> {
match bytes.try_into() {
Ok(uuid) => Some(uuid),
Err(e) => {
print_error!(e);
None
}
}
}
pub fn escape_double_quote(origin: String) -> String {
origin.replace("\"", "\\\"")
}
#[macro_export]
macro_rules! print_error {
($arg:tt) => ({
println!("[{}:{}] {}", file!(), line!(), $arg);
});
($($arg:tt)*) => ({
println!("[{}:{}] {}", file!(), line!(), format_args!($($arg)*));
})
}