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https://github.com/LemmyNet/lemmy.git
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Adding a URL max length lemmy error. (#4960)
* Adding a URL max length error. - Also increasing the post.url max length to 2000 (seems standard) - I ran into this when fixing torrent support, which often use longer urls. * Fixing sql_format.
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@ -35,11 +35,11 @@ use lemmy_utils::{
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utils::{
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slurs::check_slurs,
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validation::{
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check_url_scheme,
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is_url_blocked,
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is_valid_alt_text_field,
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is_valid_body_field,
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is_valid_post_title,
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is_valid_url,
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},
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},
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};
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@ -69,11 +69,11 @@ pub async fn create_post(
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if let Some(url) = &url {
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is_url_blocked(url, &url_blocklist)?;
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check_url_scheme(url)?;
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is_valid_url(url)?;
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}
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if let Some(custom_thumbnail) = &custom_thumbnail {
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check_url_scheme(custom_thumbnail)?;
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is_valid_url(custom_thumbnail)?;
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}
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if let Some(alt_text) = &data.alt_text {
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@ -28,11 +28,11 @@ use lemmy_utils::{
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utils::{
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slurs::check_slurs,
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validation::{
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check_url_scheme,
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is_url_blocked,
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is_valid_alt_text_field,
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is_valid_body_field,
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is_valid_post_title,
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is_valid_url,
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},
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},
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};
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@ -77,11 +77,11 @@ pub async fn update_post(
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if let Some(Some(url)) = &url {
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is_url_blocked(url, &url_blocklist)?;
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check_url_scheme(url)?;
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is_valid_url(url)?;
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}
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if let Some(Some(custom_thumbnail)) = &custom_thumbnail {
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check_url_scheme(custom_thumbnail)?;
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is_valid_url(custom_thumbnail)?;
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}
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let post_id = data.post_id;
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@ -41,7 +41,7 @@ use lemmy_db_views_actor::structs::CommunityModeratorView;
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use lemmy_utils::{
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error::{LemmyError, LemmyErrorType, LemmyResult},
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spawn_try_task,
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utils::{markdown::markdown_to_html, slurs::check_slurs_opt, validation::check_url_scheme},
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utils::{markdown::markdown_to_html, slurs::check_slurs_opt, validation::is_valid_url},
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};
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use std::ops::Deref;
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use stringreader::StringReader;
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@ -221,7 +221,7 @@ impl Object for ApubPost {
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};
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if let Some(url) = &url {
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check_url_scheme(url)?;
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is_valid_url(url)?;
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}
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let alt_text = first_attachment.cloned().and_then(Attachment::alt_text);
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@ -711,7 +711,7 @@ diesel::table! {
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id -> Int4,
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#[max_length = 200]
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name -> Varchar,
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#[max_length = 512]
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#[max_length = 2000]
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url -> Nullable<Varchar>,
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body -> Nullable<Text>,
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creator_id -> Int4,
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@ -180,6 +180,7 @@ pub enum LemmyErrorType {
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InboxTimeout,
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Unknown(String),
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CantDeleteSite,
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UrlLengthOverflow,
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}
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cfg_if! {
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@ -21,6 +21,7 @@ const ALLOWED_POST_URL_SCHEMES: [&str; 3] = ["http", "https", "magnet"];
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const BODY_MAX_LENGTH: usize = 10000;
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const POST_BODY_MAX_LENGTH: usize = 50000;
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const BIO_MAX_LENGTH: usize = 300;
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const URL_MAX_LENGTH: usize = 2000;
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const ALT_TEXT_MAX_LENGTH: usize = 1500;
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const SITE_NAME_MAX_LENGTH: usize = 20;
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const SITE_NAME_MIN_LENGTH: usize = 1;
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@ -284,11 +285,17 @@ pub fn check_site_visibility_valid(
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}
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}
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pub fn check_url_scheme(url: &Url) -> LemmyResult<()> {
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pub fn is_valid_url(url: &Url) -> LemmyResult<()> {
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if !ALLOWED_POST_URL_SCHEMES.contains(&url.scheme()) {
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Err(LemmyErrorType::InvalidUrlScheme)?
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}
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max_length_check(
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url.as_str(),
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URL_MAX_LENGTH,
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LemmyErrorType::UrlLengthOverflow,
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)?;
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Ok(())
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}
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@ -349,7 +356,6 @@ mod tests {
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utils::validation::{
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build_and_check_regex,
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check_site_visibility_valid,
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check_url_scheme,
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check_urls_are_valid,
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clean_url_params,
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is_url_blocked,
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@ -358,11 +364,13 @@ mod tests {
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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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is_valid_url,
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site_description_length_check,
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site_name_length_check,
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BIO_MAX_LENGTH,
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SITE_DESCRIPTION_MAX_LENGTH,
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SITE_NAME_MAX_LENGTH,
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URL_MAX_LENGTH,
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},
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};
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use pretty_assertions::assert_eq;
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@ -580,15 +588,27 @@ mod tests {
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}
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#[test]
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fn test_check_url_scheme() -> LemmyResult<()> {
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assert!(check_url_scheme(&Url::parse("http://example.com")?).is_ok());
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assert!(check_url_scheme(&Url::parse("https://example.com")?).is_ok());
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assert!(check_url_scheme(&Url::parse("https://example.com")?).is_ok());
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assert!(check_url_scheme(&Url::parse("ftp://example.com")?).is_err());
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assert!(check_url_scheme(&Url::parse("javascript:void")?).is_err());
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fn test_check_url_valid() -> LemmyResult<()> {
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assert!(is_valid_url(&Url::parse("http://example.com")?).is_ok());
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assert!(is_valid_url(&Url::parse("https://example.com")?).is_ok());
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assert!(is_valid_url(&Url::parse("https://example.com")?).is_ok());
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assert!(is_valid_url(&Url::parse("ftp://example.com")?)
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.is_err_and(|e| e.error_type.eq(&LemmyErrorType::InvalidUrlScheme)));
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assert!(is_valid_url(&Url::parse("javascript:void")?)
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.is_err_and(|e| e.error_type.eq(&LemmyErrorType::InvalidUrlScheme)));
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let magnet_link="magnet:?xt=urn:btih:4b390af3891e323778959d5abfff4b726510f14c&dn=Ravel%20Complete%20Piano%20Sheet%20Music%20-%20Public%20Domain&tr=udp%3A%2F%2Fopen.tracker.cl%3A1337%2Fannounce";
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assert!(check_url_scheme(&Url::parse(magnet_link)?).is_ok());
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assert!(is_valid_url(&Url::parse(magnet_link)?).is_ok());
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// Also make sure the length overflow hits an error
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let mut long_str = "http://example.com/test=".to_string();
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for _ in 1..URL_MAX_LENGTH {
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long_str.push('X');
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}
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let long_url = Url::parse(&long_str)?;
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assert!(
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is_valid_url(&long_url).is_err_and(|e| e.error_type.eq(&LemmyErrorType::UrlLengthOverflow))
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);
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Ok(())
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}
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@ -0,0 +1,3 @@
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ALTER TABLE post
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ALTER COLUMN url TYPE varchar(512);
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@ -0,0 +1,5 @@
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-- Change the post url max limit to 2000
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-- From here: https://stackoverflow.com/questions/417142/what-is-the-maximum-length-of-a-url-in-different-browsers#417184
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ALTER TABLE post
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ALTER COLUMN url TYPE varchar(2000);
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