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36aaa50644
* Organize utils into separate files. Fixes #2295 * Moving tests. * Fix test. * Fix test 2
132 lines
4.2 KiB
Rust
132 lines
4.2 KiB
Rust
use itertools::Itertools;
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use once_cell::sync::Lazy;
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use regex::Regex;
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use url::Url;
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static VALID_ACTOR_NAME_REGEX: Lazy<Regex> =
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Lazy::new(|| Regex::new(r"^[a-zA-Z0-9_]{3,}$").expect("compile regex"));
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static VALID_POST_TITLE_REGEX: Lazy<Regex> =
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Lazy::new(|| Regex::new(r".*\S{3,}.*").expect("compile regex"));
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static VALID_MATRIX_ID_REGEX: Lazy<Regex> = Lazy::new(|| {
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Regex::new(r"^@[A-Za-z0-9._=-]+:[A-Za-z0-9.-]+\.[A-Za-z]{2,}$").expect("compile regex")
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});
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// taken from https://en.wikipedia.org/wiki/UTM_parameters
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static CLEAN_URL_PARAMS_REGEX: Lazy<Regex> = Lazy::new(|| {
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Regex::new(r"^utm_source|utm_medium|utm_campaign|utm_term|utm_content|gclid|gclsrc|dclid|fbclid$")
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.expect("compile regex")
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});
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fn has_newline(name: &str) -> bool {
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name.contains('\n')
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}
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pub fn is_valid_actor_name(name: &str, actor_name_max_length: usize) -> bool {
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name.chars().count() <= actor_name_max_length
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&& VALID_ACTOR_NAME_REGEX.is_match(name)
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&& !has_newline(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_display_name(name: &str, actor_name_max_length: usize) -> bool {
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!name.starts_with('@')
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&& !name.starts_with('\u{200b}')
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&& name.chars().count() >= 3
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&& name.chars().count() <= actor_name_max_length
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&& !has_newline(name)
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}
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pub fn is_valid_matrix_id(matrix_id: &str) -> bool {
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VALID_MATRIX_ID_REGEX.is_match(matrix_id) && !has_newline(matrix_id)
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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) && !has_newline(title)
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}
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pub fn clean_url_params(url: &Url) -> Url {
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let mut url_out = url.clone();
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if url.query().is_some() {
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let new_query = url
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.query_pairs()
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.filter(|q| !CLEAN_URL_PARAMS_REGEX.is_match(&q.0))
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.map(|q| format!("{}={}", q.0, q.1))
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.join("&");
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url_out.set_query(Some(&new_query));
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}
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url_out
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}
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#[cfg(test)]
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mod tests {
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use crate::utils::validation::{
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clean_url_params,
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is_valid_actor_name,
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is_valid_display_name,
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is_valid_matrix_id,
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is_valid_post_title,
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};
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use url::Url;
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#[test]
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fn test_clean_url_params() {
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let url = Url::parse("https://example.com/path/123?utm_content=buffercf3b2&utm_medium=social&username=randomuser&id=123").unwrap();
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let cleaned = clean_url_params(&url);
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let expected = Url::parse("https://example.com/path/123?username=randomuser&id=123").unwrap();
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assert_eq!(expected.to_string(), cleaned.to_string());
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let url = Url::parse("https://example.com/path/123").unwrap();
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let cleaned = clean_url_params(&url);
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assert_eq!(url.to_string(), cleaned.to_string());
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}
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#[test]
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fn regex_checks() {
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assert!(!is_valid_post_title("hi"));
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assert!(is_valid_post_title("him"));
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assert!(!is_valid_post_title("n\n\n\n\nanother"));
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assert!(!is_valid_post_title("hello there!\n this is a test."));
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assert!(is_valid_post_title("hello there! this is a test."));
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}
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#[test]
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fn test_valid_actor_name() {
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let actor_name_max_length = 20;
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assert!(is_valid_actor_name("Hello_98", actor_name_max_length));
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assert!(is_valid_actor_name("ten", actor_name_max_length));
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assert!(!is_valid_actor_name("Hello-98", actor_name_max_length));
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assert!(!is_valid_actor_name("a", actor_name_max_length));
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assert!(!is_valid_actor_name("", actor_name_max_length));
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}
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#[test]
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fn test_valid_display_name() {
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let actor_name_max_length = 20;
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assert!(is_valid_display_name("hello @there", actor_name_max_length));
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assert!(!is_valid_display_name(
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"@hello there",
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actor_name_max_length
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));
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// Make sure zero-space with an @ doesn't work
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assert!(!is_valid_display_name(
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&format!("{}@my name is", '\u{200b}'),
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actor_name_max_length
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));
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}
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#[test]
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fn test_valid_post_title() {
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assert!(is_valid_post_title("Post Title"));
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assert!(is_valid_post_title(" POST TITLE 😃😃😃😃😃"));
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assert!(!is_valid_post_title("\n \n \n \n ")); // tabs/spaces/newlines
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}
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#[test]
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fn test_valid_matrix_id() {
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assert!(is_valid_matrix_id("@dess:matrix.org"));
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assert!(!is_valid_matrix_id("dess:matrix.org"));
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assert!(!is_valid_matrix_id(" @dess:matrix.org"));
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assert!(!is_valid_matrix_id("@dess:matrix.org t"));
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}
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}
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