lemmy/server/src/lib.rs

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Rust
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#[macro_use]
pub extern crate diesel;
pub extern crate dotenv;
pub extern crate chrono;
pub extern crate serde;
pub extern crate serde_json;
pub extern crate actix;
pub extern crate actix_web;
pub extern crate rand;
pub extern crate strum;
pub extern crate jsonwebtoken;
pub extern crate bcrypt;
pub extern crate regex;
#[macro_use] pub extern crate strum_macros;
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#[macro_use] pub extern crate lazy_static;
#[macro_use] extern crate failure;
pub mod schema;
pub mod apub;
pub mod actions;
pub mod websocket_server;
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use diesel::*;
use diesel::pg::PgConnection;
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use diesel::result::Error;
use dotenv::dotenv;
use std::env;
use regex::Regex;
use serde::{Deserialize, Serialize};
use chrono::{DateTime, NaiveDateTime, Utc};
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pub trait Crud<T> {
fn create(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn read(conn: &PgConnection, id: i32) -> Result<Self, Error> where Self: Sized;
fn update(conn: &PgConnection, id: i32, form: &T) -> Result<Self, Error> where Self: Sized;
fn delete(conn: &PgConnection, id: i32) -> Result<usize, Error> where Self: Sized;
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}
pub trait Followable<T> {
fn follow(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn ignore(conn: &PgConnection, form: &T) -> Result<usize, Error> where Self: Sized;
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}
pub trait Joinable<T> {
fn join(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn leave(conn: &PgConnection, form: &T) -> Result<usize, Error> where Self: Sized;
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}
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pub trait Likeable<T> {
fn read(conn: &PgConnection, id: i32) -> Result<Vec<Self>, Error> where Self: Sized;
fn like(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn remove(conn: &PgConnection, form: &T) -> Result<usize, Error> where Self: Sized;
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}
pub trait Bannable<T> {
fn ban(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn unban(conn: &PgConnection, form: &T) -> Result<usize, Error> where Self: Sized;
}
pub trait Saveable<T> {
fn save(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn unsave(conn: &PgConnection, form: &T) -> Result<usize, Error> where Self: Sized;
}
pub trait Readable<T> {
fn mark_as_read(conn: &PgConnection, form: &T) -> Result<Self, Error> where Self: Sized;
fn mark_as_unread(conn: &PgConnection, form: &T) -> Result<usize, Error> where Self: Sized;
}
pub fn establish_connection() -> PgConnection {
let db_url = Settings::get().db_url;
PgConnection::establish(&db_url)
.expect(&format!("Error connecting to {}", db_url))
}
pub struct Settings {
db_url: String,
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hostname: String,
jwt_secret: String,
}
impl Settings {
fn get() -> Self {
dotenv().ok();
Settings {
db_url: env::var("DATABASE_URL")
.expect("DATABASE_URL must be set"),
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hostname: env::var("HOSTNAME").unwrap_or("rrr".to_string()),
jwt_secret: env::var("JWT_SECRET").unwrap_or("changeme".to_string()),
}
}
fn api_endpoint(&self) -> String {
format!("{}/api/v1", self.hostname)
}
}
#[derive(EnumString,ToString,Debug, Serialize, Deserialize)]
pub enum SortType {
Hot, New, TopDay, TopWeek, TopMonth, TopYear, TopAll
}
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#[derive(EnumString,ToString,Debug, Serialize, Deserialize)]
pub enum SearchType {
Both, Comments, Posts
}
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 {
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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)
}
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pub fn fuzzy_search(q: &str) -> String {
let replaced = q.replace(" ", "%");
format!("%{}%", replaced)
}
pub fn limit_and_offset(page: Option<i64>, limit: Option<i64>) -> (i64, i64) {
let page = page.unwrap_or(1);
let limit = limit.unwrap_or(10);
let offset = limit * (page - 1);
(limit, offset)
}
#[cfg(test)]
mod tests {
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use {Settings, is_email_regex, remove_slurs, has_slurs, fuzzy_search};
#[test]
fn test_api() {
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assert_eq!(Settings::get().api_endpoint(), "rrr/api/v1");
}
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#[test] fn test_email() {
assert!(is_email_regex("gush@gmail.com"));
assert!(!is_email_regex("nada_neutho"));
}
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#[test] fn test_slur_filter() {
let test = "coons test dindu ladyboy tranny. 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*. This is a bunch of other safe text.".to_string());
assert!(has_slurs(&test));
assert!(!has_slurs(slur_free));
}
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#[test] fn test_fuzzy_search() {
let test = "This is a fuzzy search";
assert_eq!(fuzzy_search(test), "%This%is%a%fuzzy%search%".to_string());
}
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}
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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)?|\bnig(\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?))").unwrap();
}
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