Files
handmade-revolt-backend/src/routes/account.rs
2020-01-26 11:53:33 +00:00

280 lines
7.2 KiB
Rust

use crate::database;
use crate::email;
use rand::{ Rng, distributions::Alphanumeric };
use rocket_contrib::json::{ Json, JsonValue };
use bson::{ bson, doc, Bson::UtcDatetime };
use serde::{ Serialize, Deserialize };
use validator::validate_email;
use bcrypt::{ hash, verify };
use chrono::prelude::*;
use ulid::Ulid;
fn gen_token(l: usize) -> String {
rand::thread_rng()
.sample_iter(&Alphanumeric)
.take(l)
.collect::<String>()
}
#[derive(Serialize, Deserialize)]
pub struct Create {
username: String,
password: String,
email: String,
}
/// create a new Revolt account
/// (1) validate input
/// [username] 2 to 32 characters
/// [password] 8 to 72 characters
/// [email] validate against RFC
/// (2) check email existence
/// (3) add user and send email verification
#[post("/create", data = "<info>")]
pub fn create(info: Json<Create>) -> JsonValue {
let col = database::get_db().collection("users");
if info.username.len() < 2 || info.username.len() > 32 {
return json!({
"success": false,
"error": "Username requirements not met! Must be between 2 and 32 characters.",
})
}
if info.password.len() < 8 || info.password.len() > 72 {
return json!({
"success": false,
"error": "Password requirements not met! Must be between 8 and 72 characters.",
})
}
if !validate_email(info.email.clone()) {
return json!({
"success": false,
"error": "Invalid email provided!",
})
}
if let Some(_) = col.find_one(doc! { "email": info.email.clone() }, None).expect("Failed user lookup") {
return json!({
"success": false,
"error": "Email already in use!",
})
}
if let Ok(hashed) = hash(info.password.clone(), 10) {
let access_token = gen_token(92);
let code = gen_token(48);
match col.insert_one(doc! {
"_id": Ulid::new().to_string(),
"email": info.email.clone(),
"username": info.username.clone(),
"password": hashed,
"access_token": access_token,
"email_verification": {
"verified": false,
"target": info.email.clone(),
"expiry": UtcDatetime(Utc::now() + chrono::Duration::days(1)),
"rate_limit": UtcDatetime(Utc::now() + chrono::Duration::minutes(1)),
"code": code.clone(),
}
}, None) {
Ok(_) => {
let sent = email::send_verification_email(info.email.clone(), code);
json!({
"success": true,
"email_sent": sent,
})
},
Err(_) => json!({
"success": false,
"error": "Failed to create account!",
})
}
} else {
json!({
"success": false,
"error": "Failed to hash password!",
})
}
}
/// verify an email for a Revolt account
/// (1) check if code is valid
/// (2) check if it expired yet
/// (3) set account as verified
#[get("/verify/<code>")]
pub fn verify_email(code: String) -> JsonValue {
let col = database::get_db().collection("users");
if let Some(u) =
col.find_one(doc! { "email_verification.code": code.clone() }, None).expect("Failed user lookup") {
let ev = u.get_document("email_verification").expect("DOC[email_verification]");
let expiry = ev.get_utc_datetime("expiry").expect("DOC[expiry]");
if Utc::now() > *expiry {
json!({
"success": false,
"error": "Token has expired!",
})
} else {
let target = ev.get_str("target").expect("DOC[target]");
col.update_one(
doc! { "_id": u.get_str("_id").expect("Failed to retrieve user id.") },
doc! {
"$unset": {
"email_verification.code": "",
"email_verification.expiry": "",
"email_verification.target": "",
"email_verification.rate_limit": "",
},
"$set": {
"email_verification.verified": true,
"email": target.clone(),
},
},
None,
).expect("Failed to update user!");
email::send_welcome_email(
target.to_string(),
u.get_str("username").expect("Failed to retrieve username.").to_string()
);
json!({
"success": true
})
}
} else {
json!({
"success": false,
"error": "Invalid code!",
})
}
}
#[derive(Serialize, Deserialize)]
pub struct Resend {
email: String,
}
/// resend a verification email
/// (1) check if verification is pending for x email
/// (2) check for rate limit
/// (3) resend the email
#[post("/resend", data = "<info>")]
pub fn resend_email(info: Json<Resend>) -> JsonValue {
let col = database::get_db().collection("users");
if let Some(u) =
col.find_one(doc! { "email_verification.target": info.email.clone() }, None).expect("Failed user lookup") {
let ev = u.get_document("email_verification").expect("DOC[email_verification]");
let expiry = ev.get_utc_datetime("expiry").expect("DOC[expiry]");
let rate_limit = ev.get_utc_datetime("rate_limit").expect("DOC[rate_limit]");
if Utc::now() < *rate_limit {
json!({
"success": false,
"error": "Hit rate limit! Please try again in a minute or so.",
})
} else {
let mut new_expiry = UtcDatetime(Utc::now() + chrono::Duration::days(1));
if info.email.clone() != u.get_str("email").expect("DOC[email]") {
if Utc::now() > *expiry {
return json!({
"success": "false",
"error": "For security reasons, please login and change your email again.",
})
}
new_expiry = UtcDatetime(*expiry);
}
let code = gen_token(48);
col.update_one(
doc! { "_id": u.get_str("_id").expect("Failed to retrieve user id.") },
doc! {
"$set": {
"email_verification.code": code.clone(),
"email_verification.expiry": new_expiry,
"email_verification.rate_limit": UtcDatetime(Utc::now() + chrono::Duration::minutes(1)),
},
},
None,
).expect("Failed to update user!");
match email::send_verification_email(
info.email.to_string(),
code,
) {
true => json!({
"success": true,
}),
false => json!({
"success": false,
"error": "Failed to send email! Likely an issue with the backend API.",
})
}
}
} else {
json!({
"success": false,
"error": "Email not pending verification!",
})
}
}
#[derive(Serialize, Deserialize)]
pub struct Login {
email: String,
password: String,
}
/// login to a Revolt account
/// (1) find user by email
/// (2) verify password
/// (3) return access token
#[post("/login", data = "<info>")]
pub fn login(info: Json<Login>) -> JsonValue {
let col = database::get_db().collection("users");
if let Some(u) =
col.find_one(doc! { "email": info.email.clone() }, None).expect("Failed user lookup") {
match verify(info.password.clone(), u.get_str("password").expect("DOC[password]"))
.expect("Failed to check hash of password.") {
true => {
let token =
match u.get_str("access_token") {
Ok(t) => t.to_string(),
Err(_) => {
let token = gen_token(92);
col.update_one(
doc! { "_id": u.get_str("_id").expect("DOC[id]") },
doc! { "$set": { "access_token": token.clone() } },
None
).expect("Failed to update user object");
token
}
};
json!({
"success": true,
"access_token": token
})
},
false => json!({
"success": false,
"error": "Invalid password."
})
}
} else {
json!({
"success": false,
"error": "Email is not registered.",
})
}
}