lemmy/server/src/lib.rs
2019-11-01 23:41:57 -07:00

236 lines
6.9 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#![recursion_limit = "512"]
#[macro_use]
pub extern crate strum_macros;
#[macro_use]
pub extern crate lazy_static;
#[macro_use]
pub extern crate failure;
#[macro_use]
pub extern crate diesel;
pub extern crate actix;
pub extern crate actix_web;
pub extern crate bcrypt;
pub extern crate chrono;
pub extern crate dotenv;
pub extern crate jsonwebtoken;
pub extern crate rand;
pub extern crate regex;
pub extern crate serde;
pub extern crate serde_json;
pub extern crate strum;
pub extern crate lettre;
pub extern crate lettre_email;
pub extern crate crypto;
pub mod api;
pub mod apub;
pub mod db;
pub mod schema;
pub mod websocket;
use chrono::{DateTime, NaiveDateTime, Utc};
use dotenv::dotenv;
use regex::Regex;
use std::env;
use rand::{thread_rng, Rng};
use rand::distributions::Alphanumeric;
use lettre::{SmtpClient, Transport};
use lettre_email::{Email};
use lettre::smtp::authentication::{Credentials, Mechanism};
use lettre::smtp::extension::ClientId;
use lettre::smtp::ConnectionReuseParameters;
pub struct Settings {
db_url: String,
hostname: String,
jwt_secret: String,
rate_limit_message: i32,
rate_limit_message_per_second: i32,
rate_limit_post: i32,
rate_limit_post_per_second: i32,
rate_limit_register: i32,
rate_limit_register_per_second: i32,
email_config: Option<EmailConfig>,
}
pub struct EmailConfig {
smtp_server: String,
smtp_login: String,
smtp_password: String,
smtp_from_address: String,
}
impl Settings {
fn get() -> Self {
dotenv().ok();
let email_config = if env::var("SMTP_SERVER").is_ok() &&
!env::var("SMTP_SERVER").unwrap().eq("") {
Some(EmailConfig {
smtp_server: env::var("SMTP_SERVER").expect("SMTP_SERVER must be set"),
smtp_login: env::var("SMTP_LOGIN").expect("SMTP_LOGIN must be set"),
smtp_password: env::var("SMTP_PASSWORD").expect("SMTP_PASSWORD must be set"),
smtp_from_address: env::var("SMTP_FROM_ADDRESS").expect("SMTP_FROM_ADDRESS must be set")
})
} else {
None
};
Settings {
db_url: env::var("DATABASE_URL").expect("DATABASE_URL must be set"),
hostname: env::var("HOSTNAME").unwrap_or("rrr".to_string()),
jwt_secret: env::var("JWT_SECRET").unwrap_or("changeme".to_string()),
rate_limit_message: env::var("RATE_LIMIT_MESSAGE")
.unwrap_or("30".to_string())
.parse()
.unwrap(),
rate_limit_message_per_second: env::var("RATE_LIMIT_MESSAGE_PER_SECOND")
.unwrap_or("60".to_string())
.parse()
.unwrap(),
rate_limit_post: env::var("RATE_LIMIT_POST")
.unwrap_or("3".to_string())
.parse()
.unwrap(),
rate_limit_post_per_second: env::var("RATE_LIMIT_POST_PER_SECOND")
.unwrap_or("600".to_string())
.parse()
.unwrap(),
rate_limit_register: env::var("RATE_LIMIT_REGISTER")
.unwrap_or("1".to_string())
.parse()
.unwrap(),
rate_limit_register_per_second: env::var("RATE_LIMIT_REGISTER_PER_SECOND")
.unwrap_or("3600".to_string())
.parse()
.unwrap(),
email_config: email_config,
}
}
fn api_endpoint(&self) -> String {
format!("{}/api/v1", self.hostname)
}
}
pub fn to_datetime_utc(ndt: NaiveDateTime) -> DateTime<Utc> {
DateTime::<Utc>::from_utc(ndt, Utc)
}
pub fn naive_now() -> NaiveDateTime {
chrono::prelude::Utc::now().naive_utc()
}
pub fn naive_from_unix(time: i64) -> NaiveDateTime {
NaiveDateTime::from_timestamp(time, 0)
}
pub fn is_email_regex(test: &str) -> bool {
EMAIL_REGEX.is_match(test)
}
pub fn remove_slurs(test: &str) -> String {
SLUR_REGEX.replace_all(test, "*removed*").to_string()
}
pub fn has_slurs(test: &str) -> bool {
SLUR_REGEX.is_match(test)
}
pub fn extract_usernames(test: &str) -> Vec<&str> {
let mut matches: Vec<&str> = USERNAME_MATCHES_REGEX
.find_iter(test)
.map(|mat| mat.as_str())
.collect();
// Unique
matches.sort_unstable();
matches.dedup();
// Remove /u/
matches.iter().map(|t| &t[3..]).collect()
}
pub fn generate_random_string() -> String {
thread_rng()
.sample_iter(&Alphanumeric)
.take(30)
.collect()
}
pub fn send_email(subject: &str, to_email: &str, to_username: &str, html: &str) -> Result<(), String> {
let email_config = Settings::get().email_config.ok_or("no_email_setup")?;
let email = Email::builder()
.to((to_email, to_username))
.from((email_config.smtp_login.to_owned(), email_config.smtp_from_address))
.subject(subject)
.html(html)
.build()
.unwrap();
let mut mailer = SmtpClient::new_simple(&email_config.smtp_server).unwrap()
.hello_name(ClientId::Domain("localhost".to_string()))
.credentials(Credentials::new(
email_config.smtp_login.to_owned(),
email_config.smtp_password.to_owned()))
.smtp_utf8(true)
.authentication_mechanism(Mechanism::Plain)
.connection_reuse(ConnectionReuseParameters::ReuseUnlimited)
.transport();
let result = mailer.send(email.into());
match result {
Ok(_) => Ok(()),
Err(_) => Err("no_email_setup".to_string()),
}
}
#[cfg(test)]
mod tests {
use crate::{extract_usernames, has_slurs, is_email_regex, remove_slurs, Settings};
#[test]
fn test_api() {
assert_eq!(Settings::get().api_endpoint(), "rrr/api/v1");
}
#[test]
fn test_email() {
assert!(is_email_regex("gush@gmail.com"));
assert!(!is_email_regex("nada_neutho"));
}
#[test]
fn test_slur_filter() {
let test =
"coons test dindu ladyboy tranny retardeds. This is a bunch of other safe text.".to_string();
let slur_free = "No slurs here";
assert_eq!(
remove_slurs(&test),
"*removed* test *removed* *removed* *removed* *removed*. This is a bunch of other safe text."
.to_string()
);
assert!(has_slurs(&test));
assert!(!has_slurs(slur_free));
}
#[test]
fn test_extract_usernames() {
let usernames = extract_usernames("this is a user mention for [/u/testme](/u/testme) and thats all. Oh [/u/another](/u/another) user. And the first again [/u/testme](/u/testme) okay");
let expected = vec!["another", "testme"];
assert_eq!(usernames, expected);
}
// #[test]
// fn test_send_email() {
// let result = send_email("not a subject", "test_email@gmail.com", "ur user", "<h1>HI there</h1>");
// assert!(result.is_ok());
// }
}
lazy_static! {
static ref EMAIL_REGEX: Regex = Regex::new(r"^[a-zA-Z0-9.!#$%&*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$").unwrap();
static ref SLUR_REGEX: Regex = Regex::new(r"(fag(g|got|tard)?|maricos?|cock\s?sucker(s|ing)?|nig(\b|g?(a|er)?s?)\b|dindu(s?)|mudslime?s?|kikes?|mongoloids?|towel\s*heads?|\bspi(c|k)s?\b|\bchinks?|niglets?|beaners?|\bnips?\b|\bcoons?\b|jungle\s*bunn(y|ies?)|jigg?aboo?s?|\bpakis?\b|rag\s*heads?|gooks?|cunts?|bitch(es|ing|y)?|puss(y|ies?)|twats?|feminazis?|whor(es?|ing)|\bslut(s|t?y)?|\btrann?(y|ies?)|ladyboy(s?)|\b(b|re|r)tard(ed)?s?)").unwrap();
static ref USERNAME_MATCHES_REGEX: Regex = Regex::new(r"/u/[a-zA-Z][0-9a-zA-Z_]*").unwrap();
}