mirror of
https://github.com/LemmyNet/lemmy.git
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198 lines
4.6 KiB
Rust
198 lines
4.6 KiB
Rust
#[macro_use]
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extern crate diesel;
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#[macro_use]
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extern crate diesel_derive_newtype;
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// this is used in tests
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#[allow(unused_imports)]
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#[macro_use]
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extern crate diesel_migrations;
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#[macro_use]
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extern crate strum_macros;
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pub mod aggregates;
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pub mod impls;
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pub mod newtypes;
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pub mod schema;
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pub mod source;
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pub mod traits;
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pub type DbPool = diesel::r2d2::Pool<diesel::r2d2::ConnectionManager<diesel::PgConnection>>;
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use crate::newtypes::DbUrl;
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use chrono::NaiveDateTime;
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use diesel::{Connection, PgConnection};
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use lemmy_utils::LemmyError;
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use once_cell::sync::Lazy;
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use regex::Regex;
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use serde::{Deserialize, Serialize};
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use std::{env, env::VarError};
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use url::Url;
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pub fn get_database_url_from_env() -> Result<String, VarError> {
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env::var("LEMMY_DATABASE_URL")
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}
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#[derive(EnumString, Display, Debug, Serialize, Deserialize, Clone, Copy)]
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pub enum SortType {
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Active,
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Hot,
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New,
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TopDay,
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TopWeek,
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TopMonth,
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TopYear,
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TopAll,
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MostComments,
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NewComments,
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}
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#[derive(EnumString, Display, Debug, Serialize, Deserialize, Clone, Copy)]
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pub enum ListingType {
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All,
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Local,
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Subscribed,
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Community,
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}
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#[derive(EnumString, Display, Debug, Serialize, Deserialize, Clone, Copy)]
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pub enum SearchType {
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All,
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Comments,
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Posts,
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Communities,
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Users,
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Url,
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}
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pub fn from_opt_str_to_opt_enum<T: std::str::FromStr>(opt: &Option<String>) -> Option<T> {
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opt.as_ref().and_then(|t| T::from_str(t).ok())
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}
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pub fn fuzzy_search(q: &str) -> String {
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let replaced = q.replace('%', "\\%").replace('_', "\\_").replace(' ', "%");
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format!("%{}%", replaced)
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}
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pub fn limit_and_offset(page: Option<i64>, limit: Option<i64>) -> (i64, i64) {
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let page = page.unwrap_or(1);
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let limit = limit.unwrap_or(10);
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let offset = limit * (page - 1);
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(limit, offset)
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}
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pub fn is_email_regex(test: &str) -> bool {
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EMAIL_REGEX.is_match(test)
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}
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pub fn diesel_option_overwrite(opt: &Option<String>) -> Option<Option<String>> {
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match opt {
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// An empty string is an erase
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Some(unwrapped) => {
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if !unwrapped.eq("") {
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Some(Some(unwrapped.to_owned()))
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} else {
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Some(None)
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}
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}
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None => None,
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}
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}
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pub fn diesel_option_overwrite_to_url(
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opt: &Option<String>,
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) -> Result<Option<Option<DbUrl>>, LemmyError> {
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match opt.as_ref().map(|s| s.as_str()) {
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// An empty string is an erase
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Some("") => Ok(Some(None)),
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Some(str_url) => match Url::parse(str_url) {
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Ok(url) => Ok(Some(Some(url.into()))),
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Err(e) => Err(LemmyError::from_error_message(e, "invalid_url")),
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},
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None => Ok(None),
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}
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}
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embed_migrations!();
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pub fn establish_unpooled_connection() -> PgConnection {
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let db_url = match get_database_url_from_env() {
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Ok(url) => url,
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Err(e) => panic!(
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"Failed to read database URL from env var LEMMY_DATABASE_URL: {}",
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e
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),
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};
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let conn =
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PgConnection::establish(&db_url).unwrap_or_else(|_| panic!("Error connecting to {}", db_url));
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embedded_migrations::run(&conn).expect("load migrations");
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conn
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}
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pub fn naive_now() -> NaiveDateTime {
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chrono::prelude::Utc::now().naive_utc()
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}
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static EMAIL_REGEX: Lazy<Regex> = Lazy::new(|| {
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Regex::new(r"^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$")
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.expect("compile email regex")
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});
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pub mod functions {
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use diesel::sql_types::*;
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sql_function! {
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fn hot_rank(score: BigInt, time: Timestamp) -> Integer;
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}
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sql_function!(fn lower(x: Text) -> Text);
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}
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#[cfg(test)]
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mod tests {
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use super::{fuzzy_search, *};
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use crate::is_email_regex;
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#[test]
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fn test_fuzzy_search() {
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let test = "This %is% _a_ fuzzy search";
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assert_eq!(
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fuzzy_search(test),
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"%This%\\%is\\%%\\_a\\_%fuzzy%search%".to_string()
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);
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}
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#[test]
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fn test_email() {
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assert!(is_email_regex("gush@gmail.com"));
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assert!(!is_email_regex("nada_neutho"));
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}
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#[test]
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fn test_diesel_option_overwrite() {
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assert_eq!(diesel_option_overwrite(&None), None);
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assert_eq!(diesel_option_overwrite(&Some("".to_string())), Some(None));
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assert_eq!(
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diesel_option_overwrite(&Some("test".to_string())),
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Some(Some("test".to_string()))
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);
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}
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#[test]
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fn test_diesel_option_overwrite_to_url() {
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assert!(matches!(diesel_option_overwrite_to_url(&None), Ok(None)));
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assert!(matches!(
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diesel_option_overwrite_to_url(&Some("".to_string())),
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Ok(Some(None))
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));
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assert!(matches!(
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diesel_option_overwrite_to_url(&Some("invalid_url".to_string())),
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Err(_)
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));
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let example_url = "https://example.com";
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assert!(matches!(
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diesel_option_overwrite_to_url(&Some(example_url.to_string())),
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Ok(Some(Some(url))) if url == Url::parse(example_url).unwrap().into()
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));
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}
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}
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