Revert "Adding a URL max length lemmy error. (#4960)"

This reverts commit 33fd31754a.

crates/api_crud/src/post/create.rs

@@ -37,11 +37,11 @@ use lemmy_utils::{
   utils::{
     slurs::check_slurs,
     validation::{
+      check_url_scheme,
       is_url_blocked,
       is_valid_alt_text_field,
       is_valid_body_field,
       is_valid_post_title,
-      is_valid_url,
     },
   },
 };
@@ -71,11 +71,11 @@ pub async fn create_post(
 
   if let Some(url) = &url {
     is_url_blocked(url, &url_blocklist)?;
-    is_valid_url(url)?;
+    check_url_scheme(url)?;
   }
 
   if let Some(custom_thumbnail) = &custom_thumbnail {
-    is_valid_url(custom_thumbnail)?;
+    check_url_scheme(custom_thumbnail)?;
   }
 
   if let Some(alt_text) = &data.alt_text {

crates/api_crud/src/post/update.rs

@@ -28,11 +28,11 @@ use lemmy_utils::{
   utils::{
     slurs::check_slurs,
     validation::{
+      check_url_scheme,
       is_url_blocked,
       is_valid_alt_text_field,
       is_valid_body_field,
       is_valid_post_title,
-      is_valid_url,
     },
   },
 };
@@ -77,11 +77,11 @@ pub async fn update_post(
 
   if let Some(Some(url)) = &url {
     is_url_blocked(url, &url_blocklist)?;
-    is_valid_url(url)?;
+    check_url_scheme(url)?;
   }
 
   if let Some(Some(custom_thumbnail)) = &custom_thumbnail {
-    is_valid_url(custom_thumbnail)?;
+    check_url_scheme(custom_thumbnail)?;
   }
 
   let post_id = data.post_id;

crates/apub/src/objects/post.rs

@@ -44,7 +44,7 @@ use lemmy_utils::{
   utils::{
     markdown::markdown_to_html,
     slurs::check_slurs_opt,
-    validation::{is_url_blocked, is_valid_url},
+    validation::{check_url_scheme, is_url_blocked},
   },
 };
 use std::ops::Deref;
@@ -235,7 +235,7 @@ impl Object for ApubPost {
 
     if let Some(url) = &url {
       is_url_blocked(url, &url_blocklist)?;
-      is_valid_url(url)?;
+      check_url_scheme(url)?;
     }
 
     let alt_text = first_attachment.cloned().and_then(Attachment::alt_text);

crates/db_schema/src/schema.rs

@@ -711,7 +711,7 @@ diesel::table! {
         id -> Int4,
         #[max_length = 200]
         name -> Varchar,
-        #[max_length = 2000]
+        #[max_length = 512]
         url -> Nullable<Varchar>,
         body -> Nullable<Text>,
         creator_id -> Int4,

crates/utils/src/error.rs

@@ -180,7 +180,6 @@ pub enum LemmyErrorType {
   InboxTimeout,
   Unknown(String),
   CantDeleteSite,
-  UrlLengthOverflow,
 }
 
 cfg_if! {

crates/utils/src/utils/validation.rs

@@ -18,7 +18,6 @@ const ALLOWED_POST_URL_SCHEMES: [&str; 3] = ["http", "https", "magnet"];
 const BODY_MAX_LENGTH: usize = 10000;
 const POST_BODY_MAX_LENGTH: usize = 50000;
 const BIO_MAX_LENGTH: usize = 1000;
-const URL_MAX_LENGTH: usize = 2000;
 const ALT_TEXT_MAX_LENGTH: usize = 1500;
 const SITE_NAME_MAX_LENGTH: usize = 20;
 const SITE_NAME_MIN_LENGTH: usize = 1;
@@ -288,17 +287,11 @@ pub fn check_site_visibility_valid(
   }
 }
 
-pub fn is_valid_url(url: &Url) -> LemmyResult<()> {
+pub fn check_url_scheme(url: &Url) -> LemmyResult<()> {
   if !ALLOWED_POST_URL_SCHEMES.contains(&url.scheme()) {
     Err(LemmyErrorType::InvalidUrlScheme)?
   }
 
-  max_length_check(
-    url.as_str(),
-    URL_MAX_LENGTH,
-    LemmyErrorType::UrlLengthOverflow,
-  )?;
-
   Ok(())
 }
 
@@ -359,6 +352,7 @@ mod tests {
     utils::validation::{
       build_and_check_regex,
       check_site_visibility_valid,
+      check_url_scheme,
       check_urls_are_valid,
       clean_url,
       clean_urls_in_text,
@@ -368,13 +362,11 @@ mod tests {
       is_valid_display_name,
       is_valid_matrix_id,
       is_valid_post_title,
-      is_valid_url,
       site_description_length_check,
       site_name_length_check,
       BIO_MAX_LENGTH,
       SITE_DESCRIPTION_MAX_LENGTH,
       SITE_NAME_MAX_LENGTH,
-      URL_MAX_LENGTH,
     },
   };
   use pretty_assertions::assert_eq;
@@ -606,27 +598,15 @@ mod tests {
   }
 
   #[test]
-  fn test_check_url_valid() -> LemmyResult<()> {
-    assert!(is_valid_url(&Url::parse("http://example.com")?).is_ok());
-    assert!(is_valid_url(&Url::parse("https://example.com")?).is_ok());
-    assert!(is_valid_url(&Url::parse("https://example.com")?).is_ok());
-    assert!(is_valid_url(&Url::parse("ftp://example.com")?)
-      .is_err_and(|e| e.error_type.eq(&LemmyErrorType::InvalidUrlScheme)));
-    assert!(is_valid_url(&Url::parse("javascript:void")?)
-      .is_err_and(|e| e.error_type.eq(&LemmyErrorType::InvalidUrlScheme)));
+  fn test_check_url_scheme() -> LemmyResult<()> {
+    assert!(check_url_scheme(&Url::parse("http://example.com")?).is_ok());
+    assert!(check_url_scheme(&Url::parse("https://example.com")?).is_ok());
+    assert!(check_url_scheme(&Url::parse("https://example.com")?).is_ok());
+    assert!(check_url_scheme(&Url::parse("ftp://example.com")?).is_err());
+    assert!(check_url_scheme(&Url::parse("javascript:void")?).is_err());
 
     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";
-    assert!(is_valid_url(&Url::parse(magnet_link)?).is_ok());
-
-    // Also make sure the length overflow hits an error
-    let mut long_str = "http://example.com/test=".to_string();
-    for _ in 1..URL_MAX_LENGTH {
-      long_str.push('X');
-    }
-    let long_url = Url::parse(&long_str)?;
-    assert!(
-      is_valid_url(&long_url).is_err_and(|e| e.error_type.eq(&LemmyErrorType::UrlLengthOverflow))
-    );
+    assert!(check_url_scheme(&Url::parse(magnet_link)?).is_ok());
 
     Ok(())
   }

crates/utils/translations

@@ -1 +1 @@
-Subproject commit 6b0bb99efb6b13c412715ea3a96019895885bab0
+Subproject commit 05eac2f761a02363020bb15b0de5839d6240d642

migrations/2024-08-03-155932_increase_post_url_max_length/down.sql

@@ -1,3 +0,0 @@
-ALTER TABLE post
-    ALTER COLUMN url TYPE varchar(512);
-

migrations/2024-08-03-155932_increase_post_url_max_length/up.sql

@@ -1,5 +0,0 @@
--- Change the post url max limit to 2000
--- From here: https://stackoverflow.com/questions/417142/what-is-the-maximum-length-of-a-url-in-different-browsers#417184
-ALTER TABLE post
-    ALTER COLUMN url TYPE varchar(2000);
-