129 lines
4.2 KiB
Rust
129 lines
4.2 KiB
Rust
use crate::{settings::Settings, APIError};
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use actix_web::dev::ConnectionInfo;
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use chrono::{DateTime, FixedOffset, NaiveDateTime};
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use itertools::Itertools;
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use rand::{distributions::Alphanumeric, thread_rng, Rng};
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use regex::{Regex, RegexBuilder};
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lazy_static! {
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static ref EMAIL_REGEX: Regex = Regex::new(r"^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$").unwrap();
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static ref SLUR_REGEX: Regex = RegexBuilder::new(r"(fag(g|got|tard)?|maricos?|cock\s?sucker(s|ing)?|\bn(i|1)g(\b|g?(a|er)?(s|z)?)\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)?|\btr(a|@)nn?(y|ies?)|ladyboy(s?)|\b(b|re|r)tard(ed)?s?)").case_insensitive(true).build().unwrap();
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static ref USERNAME_MATCHES_REGEX: Regex = Regex::new(r"/u/[a-zA-Z][0-9a-zA-Z_]*").unwrap();
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// TODO keep this old one, it didn't work with port well tho
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// static ref MENTIONS_REGEX: Regex = Regex::new(r"@(?P<name>[\w.]+)@(?P<domain>[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)").unwrap();
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static ref MENTIONS_REGEX: Regex = Regex::new(r"@(?P<name>[\w.]+)@(?P<domain>[a-zA-Z0-9._:-]+)").unwrap();
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static ref VALID_USERNAME_REGEX: Regex = Regex::new(r"^[a-zA-Z0-9_]{3,20}$").unwrap();
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static ref VALID_COMMUNITY_NAME_REGEX: Regex = Regex::new(r"^[a-z0-9_]{3,20}$").unwrap();
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static ref VALID_POST_TITLE_REGEX: Regex = Regex::new(r".*\S.*").unwrap();
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}
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pub fn naive_from_unix(time: i64) -> NaiveDateTime {
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NaiveDateTime::from_timestamp(time, 0)
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}
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pub fn convert_datetime(datetime: NaiveDateTime) -> DateTime<FixedOffset> {
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DateTime::<FixedOffset>::from_utc(datetime, FixedOffset::east(0))
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}
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pub fn remove_slurs(test: &str) -> String {
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SLUR_REGEX.replace_all(test, "*removed*").to_string()
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}
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pub(crate) fn slur_check(test: &str) -> Result<(), Vec<&str>> {
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let mut matches: Vec<&str> = SLUR_REGEX.find_iter(test).map(|mat| mat.as_str()).collect();
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// Unique
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matches.sort_unstable();
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matches.dedup();
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if matches.is_empty() {
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Ok(())
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} else {
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Err(matches)
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}
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}
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pub fn check_slurs(text: &str) -> Result<(), APIError> {
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if let Err(slurs) = slur_check(text) {
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Err(APIError::err(&slurs_vec_to_str(slurs)))
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} else {
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Ok(())
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}
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}
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pub fn check_slurs_opt(text: &Option<String>) -> Result<(), APIError> {
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match text {
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Some(t) => check_slurs(t),
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None => Ok(()),
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}
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}
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pub(crate) fn slurs_vec_to_str(slurs: Vec<&str>) -> String {
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let start = "No slurs - ";
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let combined = &slurs.join(", ");
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[start, combined].concat()
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}
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pub fn generate_random_string() -> String {
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thread_rng().sample_iter(&Alphanumeric).take(30).collect()
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}
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pub fn markdown_to_html(text: &str) -> String {
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comrak::markdown_to_html(text, &comrak::ComrakOptions::default())
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}
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// TODO nothing is done with community / group webfingers yet, so just ignore those for now
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#[derive(Clone, PartialEq, Eq, Hash)]
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pub struct MentionData {
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pub name: String,
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pub domain: String,
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}
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impl MentionData {
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pub fn is_local(&self) -> bool {
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Settings::get().hostname.eq(&self.domain)
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}
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pub fn full_name(&self) -> String {
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format!("@{}@{}", &self.name, &self.domain)
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}
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}
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pub fn scrape_text_for_mentions(text: &str) -> Vec<MentionData> {
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let mut out: Vec<MentionData> = Vec::new();
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for caps in MENTIONS_REGEX.captures_iter(text) {
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out.push(MentionData {
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name: caps["name"].to_string(),
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domain: caps["domain"].to_string(),
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});
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}
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out.into_iter().unique().collect()
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}
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pub fn is_valid_username(name: &str) -> bool {
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VALID_USERNAME_REGEX.is_match(name)
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}
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// Can't do a regex here, reverse lookarounds not supported
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pub fn is_valid_preferred_username(preferred_username: &str) -> bool {
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!preferred_username.starts_with('@')
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&& preferred_username.len() >= 3
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&& preferred_username.len() <= 20
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}
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pub fn is_valid_community_name(name: &str) -> bool {
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VALID_COMMUNITY_NAME_REGEX.is_match(name)
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}
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pub fn is_valid_post_title(title: &str) -> bool {
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VALID_POST_TITLE_REGEX.is_match(title)
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}
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pub fn get_ip(conn_info: &ConnectionInfo) -> String {
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conn_info
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.realip_remote_addr()
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.unwrap_or("127.0.0.1:12345")
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.split(':')
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.next()
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.unwrap_or("127.0.0.1")
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.to_string()
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}
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