1 use crate::{ApiError, IpAddr};
2 use actix_web::dev::ConnectionInfo;
3 use chrono::{DateTime, FixedOffset, NaiveDateTime};
4 use itertools::Itertools;
5 use rand::{distributions::Alphanumeric, thread_rng, Rng};
10 static ref EMAIL_REGEX: Regex = Regex::new(r"^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$").expect("compile regex");
12 static ref USERNAME_MATCHES_REGEX: Regex = Regex::new(r"/u/[a-zA-Z][0-9a-zA-Z_]*").expect("compile regex");
13 // TODO keep this old one, it didn't work with port well tho
14 // static ref MENTIONS_REGEX: Regex = Regex::new(r"@(?P<name>[\w.]+)@(?P<domain>[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)").expect("compile regex");
15 static ref MENTIONS_REGEX: Regex = Regex::new(r"@(?P<name>[\w.]+)@(?P<domain>[a-zA-Z0-9._:-]+)").expect("compile regex");
16 static ref VALID_ACTOR_NAME_REGEX: Regex = Regex::new(r"^[a-zA-Z0-9_]{3,}$").expect("compile regex");
17 static ref VALID_POST_TITLE_REGEX: Regex = Regex::new(r".*\S.*").expect("compile regex");
18 static ref VALID_MATRIX_ID_REGEX: Regex = Regex::new(r"^@[A-Za-z0-9._=-]+:[A-Za-z0-9.-]+\.[A-Za-z]{2,}$").expect("compile regex");
19 // taken from https://en.wikipedia.org/wiki/UTM_parameters
20 static ref CLEAN_URL_PARAMS_REGEX: Regex = Regex::new(r"^utm_source|utm_medium|utm_campaign|utm_term|utm_content|gclid|gclsrc|dclid|fbclid$").expect("compile regex");
23 pub fn naive_from_unix(time: i64) -> NaiveDateTime {
24 NaiveDateTime::from_timestamp(time, 0)
27 pub fn convert_datetime(datetime: NaiveDateTime) -> DateTime<FixedOffset> {
28 DateTime::<FixedOffset>::from_utc(datetime, FixedOffset::east(0))
31 pub fn remove_slurs(test: &str, slur_regex: &Option<Regex>) -> String {
32 if let Some(slur_regex) = slur_regex {
33 slur_regex.replace_all(test, "*removed*").to_string()
39 pub(crate) fn slur_check<'a>(
41 slur_regex: &'a Option<Regex>,
42 ) -> Result<(), Vec<&'a str>> {
43 if let Some(slur_regex) = slur_regex {
44 let mut matches: Vec<&str> = slur_regex.find_iter(test).map(|mat| mat.as_str()).collect();
47 matches.sort_unstable();
50 if matches.is_empty() {
60 pub fn check_slurs(text: &str, slur_regex: &Option<Regex>) -> Result<(), ApiError> {
61 if let Err(slurs) = slur_check(text, slur_regex) {
62 Err(ApiError::err_plain(&slurs_vec_to_str(slurs)))
68 pub fn check_slurs_opt(text: &Option<String>, slur_regex: &Option<Regex>) -> Result<(), ApiError> {
70 Some(t) => check_slurs(t, slur_regex),
75 pub(crate) fn slurs_vec_to_str(slurs: Vec<&str>) -> String {
76 let start = "No slurs - ";
77 let combined = &slurs.join(", ");
78 [start, combined].concat()
81 pub fn generate_random_string() -> String {
83 .sample_iter(&Alphanumeric)
89 pub fn markdown_to_html(text: &str) -> String {
90 comrak::markdown_to_html(text, &comrak::ComrakOptions::default())
93 // TODO nothing is done with community / group webfingers yet, so just ignore those for now
94 #[derive(Clone, PartialEq, Eq, Hash)]
95 pub struct MentionData {
101 pub fn is_local(&self, hostname: &str) -> bool {
102 hostname.eq(&self.domain)
104 pub fn full_name(&self) -> String {
105 format!("@{}@{}", &self.name, &self.domain)
109 pub fn scrape_text_for_mentions(text: &str) -> Vec<MentionData> {
110 let mut out: Vec<MentionData> = Vec::new();
111 for caps in MENTIONS_REGEX.captures_iter(text) {
112 out.push(MentionData {
113 name: caps["name"].to_string(),
114 domain: caps["domain"].to_string(),
117 out.into_iter().unique().collect()
120 pub fn is_valid_actor_name(name: &str, actor_name_max_length: usize) -> bool {
121 name.chars().count() <= actor_name_max_length && VALID_ACTOR_NAME_REGEX.is_match(name)
124 // Can't do a regex here, reverse lookarounds not supported
125 pub fn is_valid_display_name(name: &str, actor_name_max_length: usize) -> bool {
126 !name.starts_with('@')
127 && !name.starts_with('\u{200b}')
128 && name.chars().count() >= 3
129 && name.chars().count() <= actor_name_max_length
132 pub fn is_valid_matrix_id(matrix_id: &str) -> bool {
133 VALID_MATRIX_ID_REGEX.is_match(matrix_id)
136 pub fn is_valid_post_title(title: &str) -> bool {
137 VALID_POST_TITLE_REGEX.is_match(title)
140 pub fn get_ip(conn_info: &ConnectionInfo) -> IpAddr {
143 .realip_remote_addr()
144 .unwrap_or("127.0.0.1:12345")
147 .unwrap_or("127.0.0.1")
152 pub fn clean_url_params(mut url: Url) -> Url {
153 if url.query().is_some() {
156 .filter(|q| !CLEAN_URL_PARAMS_REGEX.is_match(&q.0))
157 .map(|q| format!("{}={}", q.0, q.1))
159 url.set_query(Some(&new_query));
166 use crate::utils::clean_url_params;
170 fn test_clean_url_params() {
171 let url = Url::parse("https://example.com/path/123?utm_content=buffercf3b2&utm_medium=social&username=randomuser&id=123").unwrap();
172 let cleaned = clean_url_params(url);
173 let expected = Url::parse("https://example.com/path/123?username=randomuser&id=123").unwrap();
174 assert_eq!(expected.to_string(), cleaned.to_string());
176 let url = Url::parse("https://example.com/path/123").unwrap();
177 let cleaned = clean_url_params(url.clone());
178 assert_eq!(url.to_string(), cleaned.to_string());