Sanitize html (#3708)

* HTML sanitization in apub code

* Sanitize API inputs

* fmt

* Dont allow html a, img tags

---------

Co-authored-by: Dessalines <dessalines@users.noreply.github.com>
pull/3727/head^2
Nutomic 10 months ago committed by GitHub
parent 2de994797e
commit 3471f3533c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

20
Cargo.lock generated

@ -386,6 +386,19 @@ dependencies = [
"alloc-no-stdlib",
]
[[package]]
name = "ammonia"
version = "3.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "64e6d1c7838db705c9b756557ee27c384ce695a1c51a6fe528784cb1c6840170"
dependencies = [
"html5ever 0.26.0",
"maplit",
"once_cell",
"tendril",
"url",
]
[[package]]
name = "android-tzdata"
version = "0.1.1"
@ -2574,6 +2587,7 @@ version = "0.18.1"
dependencies = [
"activitypub_federation",
"actix-web",
"ammonia",
"anyhow",
"chrono",
"encoding",
@ -2988,6 +3002,12 @@ dependencies = [
"libc",
]
[[package]]
name = "maplit"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
[[package]]
name = "markdown-it"
version = "0.5.1"

@ -36,6 +36,7 @@ import {
resolveCommunity,
} from "./shared";
import { PostView } from "lemmy-js-client/dist/types/PostView";
import { CreatePost } from "lemmy-js-client/dist/types/CreatePost";
let betaCommunity: CommunityView | undefined;
@ -504,3 +505,21 @@ test("Report a post", async () => {
expect(betaReport.original_post_body).toBe(alphaReport.original_post_body);
expect(betaReport.reason).toBe(alphaReport.reason);
});
test("Sanitize HTML", async () => {
let betaCommunity = (await resolveBetaCommunity(beta)).community;
if (!betaCommunity) {
throw "Missing beta community";
}
let name = randomString(5);
let body = "<script>alert('xss');</script> hello";
let form: CreatePost = {
name,
body,
auth: beta.auth,
community_id: betaCommunity.community.id,
};
let post = await beta.client.createPost(form);
expect(post.post_view.post.body).toBe(" hello");
});

@ -3,7 +3,12 @@ use actix_web::web::Data;
use lemmy_api_common::{
comment::{CommentReportResponse, CreateCommentReport},
context::LemmyContext,
utils::{check_community_ban, local_user_view_from_jwt, send_new_report_email_to_admins},
utils::{
check_community_ban,
local_user_view_from_jwt,
sanitize_html,
send_new_report_email_to_admins,
},
};
use lemmy_db_schema::{
source::{
@ -29,8 +34,8 @@ impl Perform for CreateCommentReport {
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
let local_site = LocalSite::read(&mut context.pool()).await?;
let reason = self.reason.trim();
check_report_reason(reason, &local_site)?;
let reason = sanitize_html(self.reason.trim());
check_report_reason(&reason, &local_site)?;
let person_id = local_user_view.person.id;
let comment_id = data.comment_id;
@ -42,7 +47,7 @@ impl Perform for CreateCommentReport {
creator_id: person_id,
comment_id,
original_comment_text: comment_view.comment.content,
reason: reason.to_owned(),
reason,
};
let report = CommentReport::report(&mut context.pool(), &report_form)

@ -3,7 +3,12 @@ use actix_web::web::Data;
use lemmy_api_common::{
community::{BanFromCommunity, BanFromCommunityResponse},
context::LemmyContext,
utils::{is_mod_or_admin, local_user_view_from_jwt, remove_user_data_in_community},
utils::{
is_mod_or_admin,
local_user_view_from_jwt,
remove_user_data_in_community,
sanitize_html_opt,
},
};
use lemmy_db_schema::{
source::{
@ -81,7 +86,7 @@ impl Perform for BanFromCommunity {
mod_person_id: local_user_view.person.id,
other_person_id: data.person_id,
community_id: data.community_id,
reason: data.reason.clone(),
reason: sanitize_html_opt(&data.reason),
banned: Some(data.ban),
expires,
};

@ -4,7 +4,7 @@ use lemmy_api_common::{
build_response::build_community_response,
community::{CommunityResponse, HideCommunity},
context::LemmyContext,
utils::{is_admin, local_user_view_from_jwt},
utils::{is_admin, local_user_view_from_jwt, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -34,7 +34,7 @@ impl Perform for HideCommunity {
let mod_hide_community_form = ModHideCommunityForm {
community_id: data.community_id,
mod_person_id: local_user_view.person.id,
reason: data.reason.clone(),
reason: sanitize_html_opt(&data.reason),
hidden: Some(data.hidden),
};

@ -60,7 +60,7 @@ pub(crate) fn captcha_as_wav_base64(captcha: &Captcha) -> Result<String, LemmyEr
Ok(base64.encode(output_buffer.into_inner()))
}
/// Check size of report and remove whitespace
/// Check size of report
pub(crate) fn check_report_reason(reason: &str, local_site: &LocalSite) -> Result<(), LemmyError> {
let slur_regex = &local_site_to_slur_regex(local_site);

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
person::{BanPerson, BanPersonResponse},
utils::{is_admin, local_user_view_from_jwt, remove_user_data},
utils::{is_admin, local_user_view_from_jwt, remove_user_data, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -63,7 +63,7 @@ impl Perform for BanPerson {
let form = ModBanForm {
mod_person_id: local_user_view.person.id,
other_person_id: data.person_id,
reason: data.reason.clone(),
reason: sanitize_html_opt(&data.reason),
banned: Some(data.ban),
expires,
};

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
person::{LoginResponse, SaveUserSettings},
utils::{local_user_view_from_jwt, send_verification_email},
utils::{local_user_view_from_jwt, sanitize_html_opt, send_verification_email},
};
use lemmy_db_schema::{
source::{
@ -37,13 +37,16 @@ impl Perform for SaveUserSettings {
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
let site_view = SiteView::read_local(&mut context.pool()).await?;
let bio = sanitize_html_opt(&data.bio);
let display_name = sanitize_html_opt(&data.display_name);
let avatar = diesel_option_overwrite_to_url(&data.avatar)?;
let banner = diesel_option_overwrite_to_url(&data.banner)?;
let bio = diesel_option_overwrite(&data.bio);
let display_name = diesel_option_overwrite(&data.display_name);
let matrix_user_id = diesel_option_overwrite(&data.matrix_user_id);
let bio = diesel_option_overwrite(bio);
let display_name = diesel_option_overwrite(display_name);
let matrix_user_id = diesel_option_overwrite(data.matrix_user_id.clone());
let email_deref = data.email.as_deref().map(str::to_lowercase);
let email = diesel_option_overwrite(&email_deref);
let email = diesel_option_overwrite(email_deref.clone());
if let Some(Some(email)) = &email {
let previous_email = local_user_view.local_user.email.clone().unwrap_or_default();
@ -85,6 +88,7 @@ impl Perform for SaveUserSettings {
let person_id = local_user_view.person.id;
let default_listing_type = data.default_listing_type;
let default_sort_type = data.default_sort_type;
let theme = sanitize_html_opt(&data.theme);
let person_form = PersonUpdateForm::builder()
.display_name(display_name)
@ -130,7 +134,7 @@ impl Perform for SaveUserSettings {
.show_scores(data.show_scores)
.default_sort_type(default_sort_type)
.default_listing_type(default_listing_type)
.theme(data.theme.clone())
.theme(theme)
.interface_language(data.interface_language.clone())
.totp_2fa_secret(totp_2fa_secret)
.totp_2fa_url(totp_2fa_url)

@ -3,7 +3,12 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
post::{CreatePostReport, PostReportResponse},
utils::{check_community_ban, local_user_view_from_jwt, send_new_report_email_to_admins},
utils::{
check_community_ban,
local_user_view_from_jwt,
sanitize_html,
send_new_report_email_to_admins,
},
};
use lemmy_db_schema::{
source::{
@ -26,8 +31,8 @@ impl Perform for CreatePostReport {
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
let local_site = LocalSite::read(&mut context.pool()).await?;
let reason = self.reason.trim();
check_report_reason(reason, &local_site)?;
let reason = sanitize_html(self.reason.trim());
check_report_reason(&reason, &local_site)?;
let person_id = local_user_view.person.id;
let post_id = data.post_id;
@ -41,7 +46,7 @@ impl Perform for CreatePostReport {
original_post_name: post_view.post.name,
original_post_url: post_view.post.url,
original_post_body: post_view.post.body,
reason: reason.to_owned(),
reason,
};
let report = PostReport::report(&mut context.pool(), &report_form)

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
private_message::{CreatePrivateMessageReport, PrivateMessageReportResponse},
utils::{local_user_view_from_jwt, send_new_report_email_to_admins},
utils::{local_user_view_from_jwt, sanitize_html, send_new_report_email_to_admins},
};
use lemmy_db_schema::{
source::{
@ -25,8 +25,8 @@ impl Perform for CreatePrivateMessageReport {
let local_user_view = local_user_view_from_jwt(&self.auth, context).await?;
let local_site = LocalSite::read(&mut context.pool()).await?;
let reason = self.reason.trim();
check_report_reason(reason, &local_site)?;
let reason = sanitize_html(self.reason.trim());
check_report_reason(&reason, &local_site)?;
let person_id = local_user_view.person.id;
let private_message_id = self.private_message_id;
@ -36,7 +36,7 @@ impl Perform for CreatePrivateMessageReport {
creator_id: person_id,
private_message_id,
original_pm_text: private_message.content,
reason: reason.to_owned(),
reason: reason.clone(),
};
let report = PrivateMessageReport::report(&mut context.pool(), &report_form)

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
site::{PurgeComment, PurgeItemResponse},
utils::{is_admin, local_user_view_from_jwt},
utils::{is_admin, local_user_view_from_jwt, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -38,7 +38,7 @@ impl Perform for PurgeComment {
Comment::delete(&mut context.pool(), comment_id).await?;
// Mod tables
let reason = data.reason.clone();
let reason = sanitize_html_opt(&data.reason);
let form = AdminPurgeCommentForm {
admin_person_id: local_user_view.person.id,
reason,

@ -4,7 +4,7 @@ use lemmy_api_common::{
context::LemmyContext,
request::purge_image_from_pictrs,
site::{PurgeCommunity, PurgeItemResponse},
utils::{is_admin, local_user_view_from_jwt, purge_image_posts_for_community},
utils::{is_admin, local_user_view_from_jwt, purge_image_posts_for_community, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -55,7 +55,7 @@ impl Perform for PurgeCommunity {
Community::delete(&mut context.pool(), community_id).await?;
// Mod tables
let reason = data.reason.clone();
let reason = sanitize_html_opt(&data.reason);
let form = AdminPurgeCommunityForm {
admin_person_id: local_user_view.person.id,
reason,

@ -4,7 +4,7 @@ use lemmy_api_common::{
context::LemmyContext,
request::purge_image_from_pictrs,
site::{PurgeItemResponse, PurgePerson},
utils::{is_admin, local_user_view_from_jwt, purge_image_posts_for_person},
utils::{is_admin, local_user_view_from_jwt, purge_image_posts_for_person, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -54,7 +54,7 @@ impl Perform for PurgePerson {
Person::delete(&mut context.pool(), person_id).await?;
// Mod tables
let reason = data.reason.clone();
let reason = sanitize_html_opt(&data.reason);
let form = AdminPurgePersonForm {
admin_person_id: local_user_view.person.id,
reason,

@ -4,7 +4,7 @@ use lemmy_api_common::{
context::LemmyContext,
request::purge_image_from_pictrs,
site::{PurgeItemResponse, PurgePost},
utils::{is_admin, local_user_view_from_jwt},
utils::{is_admin, local_user_view_from_jwt, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -50,7 +50,7 @@ impl Perform for PurgePost {
Post::delete(&mut context.pool(), post_id).await?;
// Mod tables
let reason = data.reason.clone();
let reason = sanitize_html_opt(&data.reason);
let form = AdminPurgePostForm {
admin_person_id: local_user_view.person.id,
reason,

@ -30,7 +30,7 @@ impl Perform for ApproveRegistrationApplication {
is_admin(&local_user_view)?;
// Update the registration with reason, admin_id
let deny_reason = diesel_option_overwrite(&data.deny_reason);
let deny_reason = diesel_option_overwrite(data.deny_reason.clone());
let app_form = RegistrationApplicationUpdateForm {
admin_id: Some(Some(local_user_view.person.id)),
deny_reason,

@ -34,6 +34,7 @@ full = [
"actix-web",
"futures",
"once_cell",
"ammonia",
]
[dependencies]
@ -66,3 +67,4 @@ once_cell = { workspace = true, optional = true }
actix-web = { workspace = true, optional = true }
# necessary for wasmt compilation
getrandom = { version = "0.2.10", features = ["js"] }
ammonia = { version = "3.3.0", optional = true }

@ -729,31 +729,6 @@ pub async fn delete_user_account(
Ok(())
}
#[cfg(test)]
mod tests {
#![allow(clippy::unwrap_used)]
#![allow(clippy::indexing_slicing)]
use crate::utils::{honeypot_check, password_length_check};
#[test]
#[rustfmt::skip]
fn password_length() {
assert!(password_length_check("Õ¼¾°3yË,o¸ãtÌÈú|ÇÁÙAøüÒI©·¤(T]/ð>æºWæ[C¤bªWöaÃÎñ·{=û³&§½K/c").is_ok());
assert!(password_length_check("1234567890").is_ok());
assert!(password_length_check("short").is_err());
assert!(password_length_check("looooooooooooooooooooooooooooooooooooooooooooooooooooooooooong").is_err());
}
#[test]
fn honeypot() {
assert!(honeypot_check(&None).is_ok());
assert!(honeypot_check(&Some(String::new())).is_ok());
assert!(honeypot_check(&Some("1".to_string())).is_err());
assert!(honeypot_check(&Some("message".to_string())).is_err());
}
}
pub enum EndpointType {
Community,
Person,
@ -819,3 +794,49 @@ pub fn generate_featured_url(actor_id: &DbUrl) -> Result<DbUrl, ParseError> {
pub fn generate_moderators_url(community_id: &DbUrl) -> Result<DbUrl, LemmyError> {
Ok(Url::parse(&format!("{community_id}/moderators"))?.into())
}
/// Sanitize HTML with default options. Additionally, dont allow bypassing markdown
/// links and images
pub fn sanitize_html(data: &str) -> String {
ammonia::Builder::default()
.rm_tags(&["a", "img"])
.clean(data)
.to_string()
}
pub fn sanitize_html_opt(data: &Option<String>) -> Option<String> {
data.as_ref().map(|d| sanitize_html(d))
}
#[cfg(test)]
mod tests {
#![allow(clippy::unwrap_used)]
#![allow(clippy::indexing_slicing)]
use crate::utils::{honeypot_check, password_length_check, sanitize_html};
#[test]
#[rustfmt::skip]
fn password_length() {
assert!(password_length_check("Õ¼¾°3yË,o¸ãtÌÈú|ÇÁÙAøüÒI©·¤(T]/ð>æºWæ[C¤bªWöaÃÎñ·{=û³&§½K/c").is_ok());
assert!(password_length_check("1234567890").is_ok());
assert!(password_length_check("short").is_err());
assert!(password_length_check("looooooooooooooooooooooooooooooooooooooooooooooooooooooooooong").is_err());
}
#[test]
fn honeypot() {
assert!(honeypot_check(&None).is_ok());
assert!(honeypot_check(&Some(String::new())).is_ok());
assert!(honeypot_check(&Some("1".to_string())).is_err());
assert!(honeypot_check(&Some("message".to_string())).is_err());
}
#[test]
fn test_sanitize_html() {
let sanitized = sanitize_html("<script>alert(1);</script> hello");
assert_eq!(sanitized, " hello");
let sanitized = sanitize_html("<img src='http://example.com'> test");
assert_eq!(sanitized, " test");
}
}

@ -12,6 +12,7 @@ use lemmy_api_common::{
get_post,
local_site_to_slur_regex,
local_user_view_from_jwt,
sanitize_html,
EndpointType,
},
};
@ -47,11 +48,12 @@ impl PerformCrud for CreateComment {
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
let local_site = LocalSite::read(&mut context.pool()).await?;
let content_slurs_removed = remove_slurs(
let content = remove_slurs(
&data.content.clone(),
&local_site_to_slur_regex(&local_site),
);
is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
is_valid_body_field(&Some(content.clone()), false)?;
let content = sanitize_html(&content);
// Check for a community ban
let post_id = data.post_id;
@ -104,7 +106,7 @@ impl PerformCrud for CreateComment {
};
let comment_form = CommentInsertForm::builder()
.content(content_slurs_removed.clone())
.content(content.clone())
.post_id(data.post_id)
.creator_id(local_user_view.person.id)
.language_id(language_id)
@ -135,7 +137,7 @@ impl PerformCrud for CreateComment {
.with_lemmy_type(LemmyErrorType::CouldntCreateComment)?;
// Scan the comment for user mentions, add those rows
let mentions = scrape_text_for_mentions(&content_slurs_removed);
let mentions = scrape_text_for_mentions(&content);
let recipient_ids = send_local_notifs(
mentions,
&updated_comment,

@ -4,7 +4,12 @@ use lemmy_api_common::{
build_response::{build_comment_response, send_local_notifs},
comment::{CommentResponse, EditComment},
context::LemmyContext,
utils::{check_community_ban, local_site_to_slur_regex, local_user_view_from_jwt},
utils::{
check_community_ban,
local_site_to_slur_regex,
local_user_view_from_jwt,
sanitize_html_opt,
},
};
use lemmy_db_schema::{
source::{
@ -59,16 +64,16 @@ impl PerformCrud for EditComment {
.await?;
// Update the Content
let content_slurs_removed = data
let content = data
.content
.as_ref()
.map(|c| remove_slurs(c, &local_site_to_slur_regex(&local_site)));
is_valid_body_field(&content_slurs_removed, false)?;
is_valid_body_field(&content, false)?;
let content = sanitize_html_opt(&content);
let comment_id = data.comment_id;
let form = CommentUpdateForm::builder()
.content(content_slurs_removed)
.content(content)
.language_id(data.language_id)
.updated(Some(Some(naive_now())))
.build();

@ -13,6 +13,8 @@ use lemmy_api_common::{
is_admin,
local_site_to_slur_regex,
local_user_view_from_jwt,
sanitize_html,
sanitize_html_opt,
EndpointType,
},
};
@ -59,10 +61,14 @@ impl PerformCrud for CreateCommunity {
let icon = diesel_option_overwrite_to_url_create(&data.icon)?;
let banner = diesel_option_overwrite_to_url_create(&data.banner)?;
let name = sanitize_html(&data.name);
let title = sanitize_html(&data.title);
let description = sanitize_html_opt(&data.description);
let slur_regex = local_site_to_slur_regex(&local_site);
check_slurs(&data.name, &slur_regex)?;
check_slurs(&data.title, &slur_regex)?;
check_slurs_opt(&data.description, &slur_regex)?;
check_slurs(&name, &slur_regex)?;
check_slurs(&title, &slur_regex)?;
check_slurs_opt(&description, &slur_regex)?;
is_valid_actor_name(&data.name, local_site.actor_name_max_length as usize)?;
is_valid_body_field(&data.description, false)?;
@ -83,9 +89,9 @@ impl PerformCrud for CreateCommunity {
let keypair = generate_actor_keypair()?;
let community_form = CommunityInsertForm::builder()
.name(data.name.clone())
.title(data.title.clone())
.description(data.description.clone())
.name(name)
.title(title)
.description(description)
.icon(icon)
.banner(banner)
.nsfw(data.nsfw)

@ -4,7 +4,7 @@ use lemmy_api_common::{
build_response::build_community_response,
community::{CommunityResponse, EditCommunity},
context::LemmyContext,
utils::{local_site_to_slur_regex, local_user_view_from_jwt},
utils::{local_site_to_slur_regex, local_user_view_from_jwt, sanitize_html_opt},
};
use lemmy_db_schema::{
newtypes::PersonId,
@ -32,15 +32,18 @@ impl PerformCrud for EditCommunity {
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
let local_site = LocalSite::read(&mut context.pool()).await?;
let icon = diesel_option_overwrite_to_url(&data.icon)?;
let banner = diesel_option_overwrite_to_url(&data.banner)?;
let description = diesel_option_overwrite(&data.description);
let slur_regex = local_site_to_slur_regex(&local_site);
check_slurs_opt(&data.title, &slur_regex)?;
check_slurs_opt(&data.description, &slur_regex)?;
is_valid_body_field(&data.description, false)?;
let title = sanitize_html_opt(&data.title);
let description = sanitize_html_opt(&data.description);
let icon = diesel_option_overwrite_to_url(&data.icon)?;
let banner = diesel_option_overwrite_to_url(&data.banner)?;
let description = diesel_option_overwrite(description);
// Verify its a mod (only mods can edit it)
let community_id = data.community_id;
let mods: Vec<PersonId> =
@ -64,7 +67,7 @@ impl PerformCrud for EditCommunity {
}
let community_form = CommunityUpdateForm::builder()
.title(data.title.clone())
.title(title)
.description(description)
.icon(icon)
.banner(banner)

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
custom_emoji::{CreateCustomEmoji, CustomEmojiResponse},
utils::{is_admin, local_user_view_from_jwt},
utils::{is_admin, local_user_view_from_jwt, sanitize_html},
};
use lemmy_db_schema::source::{
custom_emoji::{CustomEmoji, CustomEmojiInsertForm},
@ -26,11 +26,15 @@ impl PerformCrud for CreateCustomEmoji {
// Make sure user is an admin
is_admin(&local_user_view)?;
let shortcode = sanitize_html(data.shortcode.to_lowercase().trim());
let alt_text = sanitize_html(&data.alt_text);
let category = sanitize_html(&data.category);
let emoji_form = CustomEmojiInsertForm::builder()
.local_site_id(local_site.id)
.shortcode(data.shortcode.to_lowercase().trim().to_string())
.alt_text(data.alt_text.to_string())
.category(data.category.to_string())
.shortcode(shortcode)
.alt_text(alt_text)
.category(category)
.image_url(data.clone().image_url.into())
.build();
let emoji = CustomEmoji::create(&mut context.pool(), &emoji_form).await?;

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
custom_emoji::{CustomEmojiResponse, EditCustomEmoji},
utils::{is_admin, local_user_view_from_jwt},
utils::{is_admin, local_user_view_from_jwt, sanitize_html},
};
use lemmy_db_schema::source::{
custom_emoji::{CustomEmoji, CustomEmojiUpdateForm},
@ -26,10 +26,13 @@ impl PerformCrud for EditCustomEmoji {
// Make sure user is an admin
is_admin(&local_user_view)?;
let alt_text = sanitize_html(&data.alt_text);
let category = sanitize_html(&data.category);
let emoji_form = CustomEmojiUpdateForm::builder()
.local_site_id(local_site.id)
.alt_text(data.alt_text.to_string())
.category(data.category.to_string())
.alt_text(alt_text)
.category(category)
.image_url(data.clone().image_url.into())
.build();
let emoji = CustomEmoji::update(&mut context.pool(), data.id, &emoji_form).await?;

@ -14,6 +14,8 @@ use lemmy_api_common::{
local_site_to_slur_regex,
local_user_view_from_jwt,
mark_post_as_read,
sanitize_html,
sanitize_html_opt,
EndpointType,
},
};
@ -91,6 +93,11 @@ pub async fn create_post(
.map(|u| (u.title, u.description, u.embed_video_url))
.unwrap_or_default();
let name = sanitize_html(data.name.trim());
let body = sanitize_html_opt(&data.body);
let embed_title = sanitize_html_opt(&embed_title);
let embed_description = sanitize_html_opt(&embed_description);
// Only need to check if language is allowed in case user set it explicitly. When using default
// language, it already only returns allowed languages.
CommunityLanguage::is_allowed_community_language(
@ -114,9 +121,9 @@ pub async fn create_post(
};
let post_form = PostInsertForm::builder()
.name(data.name.trim().to_owned())
.name(name)
.url(url)
.body(data.body.clone())
.body(body)
.community_id(data.community_id)
.creator_id(local_user_view.person.id)
.nsfw(data.nsfw)

@ -5,7 +5,12 @@ use lemmy_api_common::{
context::LemmyContext,
post::{EditPost, PostResponse},
request::fetch_site_data,
utils::{check_community_ban, local_site_to_slur_regex, local_user_view_from_jwt},
utils::{
check_community_ban,
local_site_to_slur_regex,
local_user_view_from_jwt,
sanitize_html_opt,
},
};
use lemmy_db_schema::{
source::{
@ -39,7 +44,6 @@ impl PerformCrud for EditPost {
// TODO No good way to handle a clear.
// Issue link: https://github.com/LemmyNet/lemmy/issues/2287
let url = Some(data_url.map(clean_url_params).map(Into::into));
let body = diesel_option_overwrite(&data.body);
let slur_regex = local_site_to_slur_regex(&local_site);
check_slurs_opt(&data.name, &slur_regex)?;
@ -75,6 +79,12 @@ impl PerformCrud for EditPost {
.map(|u| (Some(u.title), Some(u.description), Some(u.embed_video_url)))
.unwrap_or_default();
let name = sanitize_html_opt(&data.name);
let body = sanitize_html_opt(&data.body);
let body = diesel_option_overwrite(body);
let embed_title = embed_title.map(|e| sanitize_html_opt(&e));
let embed_description = embed_description.map(|e| sanitize_html_opt(&e));
let language_id = self.language_id;
CommunityLanguage::is_allowed_community_language(
&mut context.pool(),
@ -84,7 +94,7 @@ impl PerformCrud for EditPost {
.await?;
let post_form = PostUpdateForm::builder()
.name(data.name.clone())
.name(name)
.url(url)
.body(body)
.nsfw(data.nsfw)

@ -9,6 +9,7 @@ use lemmy_api_common::{
get_interface_language,
local_site_to_slur_regex,
local_user_view_from_jwt,
sanitize_html,
send_email_to_user,
EndpointType,
},
@ -39,11 +40,9 @@ impl PerformCrud for CreatePrivateMessage {
let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
let local_site = LocalSite::read(&mut context.pool()).await?;
let content_slurs_removed = remove_slurs(
&data.content.clone(),
&local_site_to_slur_regex(&local_site),
);
is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
let content = sanitize_html(&data.content);
let content = remove_slurs(&content, &local_site_to_slur_regex(&local_site));
is_valid_body_field(&Some(content.clone()), false)?;
check_person_block(
local_user_view.person.id,
@ -53,7 +52,7 @@ impl PerformCrud for CreatePrivateMessage {
.await?;
let private_message_form = PrivateMessageInsertForm::builder()
.content(content_slurs_removed.clone())
.content(content.clone())
.creator_id(local_user_view.person.id)
.recipient_id(data.recipient_id)
.build();
@ -92,7 +91,7 @@ impl PerformCrud for CreatePrivateMessage {
send_email_to_user(
&local_recipient,
&lang.notification_private_message_subject(sender_name),
&lang.notification_private_message_body(inbox_link, &content_slurs_removed, sender_name),
&lang.notification_private_message_body(inbox_link, &content, sender_name),
context.settings(),
)
.await;

@ -3,7 +3,7 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
private_message::{EditPrivateMessage, PrivateMessageResponse},
utils::{local_site_to_slur_regex, local_user_view_from_jwt},
utils::{local_site_to_slur_regex, local_user_view_from_jwt, sanitize_html},
};
use lemmy_db_schema::{
source::{
@ -41,15 +41,16 @@ impl PerformCrud for EditPrivateMessage {
}
// Doing the update
let content_slurs_removed = remove_slurs(&data.content, &local_site_to_slur_regex(&local_site));
is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
let content = sanitize_html(&data.content);
let content = remove_slurs(&content, &local_site_to_slur_regex(&local_site));
is_valid_body_field(&Some(content.clone()), false)?;
let private_message_id = data.private_message_id;
PrivateMessage::update(
&mut context.pool(),
private_message_id,
&PrivateMessageUpdateForm::builder()
.content(Some(content_slurs_removed))
.content(Some(content))
.updated(Some(Some(naive_now())))
.build(),
)

@ -12,6 +12,8 @@ use lemmy_api_common::{
is_admin,
local_site_rate_limit_to_rate_limit_config,
local_user_view_from_jwt,
sanitize_html,
sanitize_html_opt,
},
};
use lemmy_db_schema::{
@ -59,10 +61,14 @@ impl PerformCrud for CreateSite {
let actor_id: DbUrl = Url::parse(&context.settings().get_protocol_and_hostname())?.into();
let inbox_url = Some(generate_site_inbox_url(&actor_id)?);
let keypair = generate_actor_keypair()?;
let name = sanitize_html(&data.name);
let sidebar = sanitize_html_opt(&data.sidebar);
let description = sanitize_html_opt(&data.description);
let site_form = SiteUpdateForm::builder()
.name(Some(data.name.clone()))
.sidebar(diesel_option_overwrite(&data.sidebar))
.description(diesel_option_overwrite(&data.description))
.name(Some(name))
.sidebar(diesel_option_overwrite(sidebar))
.description(diesel_option_overwrite(description))
.icon(diesel_option_overwrite_to_url(&data.icon)?)
.banner(diesel_option_overwrite_to_url(&data.banner)?)
.actor_id(Some(actor_id))
@ -76,6 +82,10 @@ impl PerformCrud for CreateSite {
Site::update(&mut context.pool(), site_id, &site_form).await?;
let application_question = sanitize_html_opt(&data.application_question);
let default_theme = sanitize_html_opt(&data.default_theme);
let legal_information = sanitize_html_opt(&data.legal_information);
let local_site_form = LocalSiteUpdateForm::builder()
// Set the site setup to true
.site_setup(Some(true))
@ -84,15 +94,15 @@ impl PerformCrud for CreateSite {
.enable_nsfw(data.enable_nsfw)
.community_creation_admin_only(data.community_creation_admin_only)
.require_email_verification(data.require_email_verification)
.application_question(diesel_option_overwrite(&data.application_question))
.application_question(diesel_option_overwrite(application_question))
.private_instance(data.private_instance)
.default_theme(data.default_theme.clone())
.default_theme(default_theme)
.default_post_listing_type(data.default_post_listing_type)
.legal_information(diesel_option_overwrite(&data.legal_information))
.legal_information(diesel_option_overwrite(legal_information))
.application_email_admins(data.application_email_admins)
.hide_modlog_mod_names(data.hide_modlog_mod_names)
.updated(Some(Some(naive_now())))
.slur_filter_regex(diesel_option_overwrite(&data.slur_filter_regex))
.slur_filter_regex(diesel_option_overwrite(data.slur_filter_regex.clone()))
.actor_name_max_length(data.actor_name_max_length)
.federation_enabled(data.federation_enabled)
.captcha_enabled(data.captcha_enabled)

@ -6,7 +6,12 @@ use actix_web::web::Data;
use lemmy_api_common::{
context::LemmyContext,
site::{EditSite, SiteResponse},
utils::{is_admin, local_site_rate_limit_to_rate_limit_config, local_user_view_from_jwt},
utils::{
is_admin,
local_site_rate_limit_to_rate_limit_config,
local_user_view_from_jwt,
sanitize_html_opt,
},
};
use lemmy_db_schema::{
source::{
@ -59,10 +64,14 @@ impl PerformCrud for EditSite {
SiteLanguage::update(&mut context.pool(), discussion_languages.clone(), &site).await?;
}
let name = sanitize_html_opt(&data.name);
let sidebar = sanitize_html_opt(&data.sidebar);
let description = sanitize_html_opt(&data.description);
let site_form = SiteUpdateForm::builder()
.name(data.name.clone())
.sidebar(diesel_option_overwrite(&data.sidebar))
.description(diesel_option_overwrite(&data.description))
.name(name)
.sidebar(diesel_option_overwrite(sidebar))
.description(diesel_option_overwrite(description))
.icon(diesel_option_overwrite_to_url(&data.icon)?)
.banner(diesel_option_overwrite_to_url(&data.banner)?)
.updated(Some(Some(naive_now())))
@ -74,21 +83,25 @@ impl PerformCrud for EditSite {
// Diesel will throw an error for empty update forms
.ok();
let application_question = sanitize_html_opt(&data.application_question);
let default_theme = sanitize_html_opt(&data.default_theme);
let legal_information = sanitize_html_opt(&data.legal_information);
let local_site_form = LocalSiteUpdateForm::builder()
.enable_downvotes(data.enable_downvotes)
.registration_mode(data.registration_mode)
.enable_nsfw(data.enable_nsfw)
.community_creation_admin_only(data.community_creation_admin_only)
.require_email_verification(data.require_email_verification)
.application_question(diesel_option_overwrite(&data.application_question))
.application_question(diesel_option_overwrite(application_question))
.private_instance(data.private_instance)
.default_theme(data.default_theme.clone())
.default_theme(default_theme)
.default_post_listing_type(data.default_post_listing_type)
.legal_information(diesel_option_overwrite(&data.legal_information))
.legal_information(diesel_option_overwrite(legal_information))
.application_email_admins(data.application_email_admins)
.hide_modlog_mod_names(data.hide_modlog_mod_names)
.updated(Some(Some(naive_now())))
.slur_filter_regex(diesel_option_overwrite(&data.slur_filter_regex))
.slur_filter_regex(diesel_option_overwrite(data.slur_filter_regex.clone()))
.actor_name_max_length(data.actor_name_max_length)
.federation_enabled(data.federation_enabled)
.captcha_enabled(data.captcha_enabled)

@ -11,6 +11,7 @@ use lemmy_api_common::{
honeypot_check,
local_site_to_slur_regex,
password_length_check,
sanitize_html,
send_new_applicant_email_to_admins,
send_verification_email,
EndpointType,
@ -92,6 +93,7 @@ impl PerformCrud for Register {
let slur_regex = local_site_to_slur_regex(&local_site);
check_slurs(&data.username, &slur_regex)?;
check_slurs_opt(&data.answer, &slur_regex)?;
let username = sanitize_html(&data.username);
let actor_keypair = generate_actor_keypair()?;
is_valid_actor_name(&data.username, local_site.actor_name_max_length as usize)?;
@ -111,7 +113,7 @@ impl PerformCrud for Register {
// Register the new person
let person_form = PersonInsertForm::builder()
.name(data.username.clone())
.name(username)
.actor_id(Some(actor_id.clone()))
.private_key(Some(actor_keypair.private_key))
.public_key(actor_keypair.public_key)

@ -23,7 +23,7 @@ use anyhow::anyhow;
use chrono::NaiveDateTime;
use lemmy_api_common::{
context::LemmyContext,
utils::{remove_user_data, remove_user_data_in_community},
utils::{remove_user_data, remove_user_data_in_community, sanitize_html_opt},
};
use lemmy_db_schema::{
source::{
@ -177,7 +177,7 @@ impl ActivityHandler for BlockUser {
let form = ModBanForm {
mod_person_id: mod_person.id,
other_person_id: blocked_person.id,
reason: self.summary,
reason: sanitize_html_opt(&self.summary),
banned: Some(true),
expires,
};
@ -211,7 +211,7 @@ impl ActivityHandler for BlockUser {
mod_person_id: mod_person.id,
other_person_id: blocked_person.id,
community_id: community.id,
reason: self.summary,
reason: sanitize_html_opt(&self.summary),
banned: Some(true),
expires,
};

@ -17,7 +17,7 @@ use activitypub_federation::{
protocol::verification::verify_domains_match,
traits::{ActivityHandler, Actor},
};
use lemmy_api_common::context::LemmyContext;
use lemmy_api_common::{context::LemmyContext, utils::sanitize_html_opt};
use lemmy_db_schema::{
source::{
community::{CommunityPersonBan, CommunityPersonBanForm},
@ -116,7 +116,7 @@ impl ActivityHandler for UndoBlockUser {
let form = ModBanForm {
mod_person_id: mod_person.id,
other_person_id: blocked_person.id,
reason: self.object.summary,
reason: sanitize_html_opt(&self.object.summary),
banned: Some(false),
expires,
};
@ -135,7 +135,7 @@ impl ActivityHandler for UndoBlockUser {
mod_person_id: mod_person.id,
other_person_id: blocked_person.id,
community_id: community.id,
reason: self.object.summary,
reason: sanitize_html_opt(&self.object.summary),
banned: Some(false),
expires,
};

@ -16,7 +16,7 @@ use lemmy_api_common::{
comment::{CommentReportResponse, CreateCommentReport},
context::LemmyContext,
post::{CreatePostReport, PostReportResponse},
utils::local_user_view_from_jwt,
utils::{local_user_view_from_jwt, sanitize_html},
};
use lemmy_db_schema::{
source::{
@ -131,7 +131,7 @@ impl ActivityHandler for Report {
post_id: post.id,
original_post_name: post.name.clone(),
original_post_url: post.url.clone(),
reason: self.summary,
reason: sanitize_html(&self.summary),
original_post_body: post.body.clone(),
};
PostReport::report(&mut context.pool(), &report_form).await?;
@ -141,7 +141,7 @@ impl ActivityHandler for Report {
creator_id: actor.id,
comment_id: comment.id,
original_comment_text: comment.content.clone(),
reason: self.summary,
reason: sanitize_html(&self.summary),
};
CommentReport::report(&mut context.pool(), &report_form).await?;
}

@ -8,7 +8,7 @@ use crate::{
protocol::{activities::deletion::delete::Delete, IdOrNestedObject},
};
use activitypub_federation::{config::Data, kinds::activity::DeleteType, traits::ActivityHandler};
use lemmy_api_common::context::LemmyContext;
use lemmy_api_common::{context::LemmyContext, utils::sanitize_html_opt};
use lemmy_db_schema::{
source::{
comment::{Comment, CommentUpdateForm},
@ -105,6 +105,8 @@ pub(in crate::activities) async fn receive_remove_action(
reason: Option<String>,
context: &Data<LemmyContext>,
) -> Result<(), LemmyError> {
let reason = sanitize_html_opt(&reason);
match DeletableObjects::read_from_db(object, context).await? {
DeletableObjects::Community(community) => {
if community.local {

@ -16,7 +16,10 @@ use activitypub_federation::{
traits::Object,
};
use chrono::NaiveDateTime;
use lemmy_api_common::{context::LemmyContext, utils::local_site_opt_to_slur_regex};
use lemmy_api_common::{
context::LemmyContext,
utils::{local_site_opt_to_slur_regex, sanitize_html},
};
use lemmy_db_schema::{
source::{
comment::{Comment, CommentInsertForm, CommentUpdateForm},
@ -154,14 +157,15 @@ impl Object for ApubComment {
let local_site = LocalSite::read(&mut context.pool()).await.ok();
let slur_regex = &local_site_opt_to_slur_regex(&local_site);
let content_slurs_removed = remove_slurs(&content, slur_regex);
let content = remove_slurs(&content, slur_regex);
let content = sanitize_html(&content);
let language_id =
LanguageTag::to_language_id_single(note.language, &mut context.pool()).await?;
let form = CommentInsertForm {
creator_id: creator.id,
post_id: post.id,
content: content_slurs_removed,
content,
removed: None,
published: note.published.map(|u| u.naive_local()),
updated: note.updated.map(|u| u.naive_local()),

@ -16,7 +16,10 @@ use activitypub_federation::{
traits::{Actor, Object},
};
use chrono::NaiveDateTime;
use lemmy_api_common::{context::LemmyContext, utils::local_site_opt_to_slur_regex};
use lemmy_api_common::{
context::LemmyContext,
utils::{local_site_opt_to_slur_regex, sanitize_html_opt},
};
use lemmy_db_schema::{
newtypes::InstanceId,
source::{
@ -129,13 +132,17 @@ impl Object for ApubSite {
let domain = apub.id.inner().domain().expect("group id has domain");
let instance = DbInstance::read_or_create(&mut data.pool(), domain.to_string()).await?;
let sidebar = read_from_string_or_source_opt(&apub.content, &None, &apub.source);
let sidebar = sanitize_html_opt(&sidebar);
let description = sanitize_html_opt(&apub.summary);
let site_form = SiteInsertForm {
name: apub.name.clone(),
sidebar: read_from_string_or_source_opt(&apub.content, &None, &apub.source),
sidebar,
updated: apub.updated.map(|u| u.clone().naive_local()),
icon: apub.icon.clone().map(|i| i.url.into()),
banner: apub.image.clone().map(|i| i.url.into()),
description: apub.summary.clone(),
description,
actor_id: Some(apub.id.clone().into()),
last_refreshed_at: Some(naive_now()),
inbox_url: Some(apub.inbox.clone().into()),

@ -19,7 +19,7 @@ use activitypub_federation::{
use chrono::NaiveDateTime;
use lemmy_api_common::{
context::LemmyContext,
utils::{generate_outbox_url, local_site_opt_to_slur_regex},
utils::{generate_outbox_url, local_site_opt_to_slur_regex, sanitize_html, sanitize_html_opt},
};
use lemmy_db_schema::{
source::person::{Person as DbPerson, PersonInsertForm, PersonUpdateForm},
@ -138,12 +138,17 @@ impl Object for ApubPerson {
) -> Result<ApubPerson, LemmyError> {
let instance_id = fetch_instance_actor_for_object(&person.id, context).await?;
let name = sanitize_html(&person.preferred_username);
let display_name = sanitize_html_opt(&person.name);
let bio = read_from_string_or_source_opt(&person.summary, &None, &person.source);
let bio = sanitize_html_opt(&bio);
// Some Mastodon users have `name: ""` (empty string), need to convert that to `None`
// https://github.com/mastodon/mastodon/issues/25233
let display_name = person.name.filter(|n| !n.is_empty());
let display_name = display_name.filter(|n| !n.is_empty());
let person_form = PersonInsertForm {
name: person.preferred_username,
name,
display_name,
banned: None,
ban_expires: None,
@ -153,7 +158,7 @@ impl Object for ApubPerson {
published: person.published.map(|u| u.naive_local()),
updated: person.updated.map(|u| u.naive_local()),
actor_id: Some(person.id.into()),
bio: read_from_string_or_source_opt(&person.summary, &None, &person.source),
bio,
local: Some(false),
admin: Some(false),
bot_account: Some(person.kind == UserTypes::Service),

@ -25,7 +25,13 @@ use html2md::parse_html;
use lemmy_api_common::{
context::LemmyContext,
request::fetch_site_data,
utils::{is_mod_or_admin, local_site_opt_to_sensitive, local_site_opt_to_slur_regex},
utils::{
is_mod_or_admin,
local_site_opt_to_sensitive,
local_site_opt_to_slur_regex,
sanitize_html,
sanitize_html_opt,
},
};
use lemmy_db_schema::{
self,
@ -228,6 +234,10 @@ impl Object for ApubPost {
let language_id =
LanguageTag::to_language_id_single(page.language, &mut context.pool()).await?;
let name = sanitize_html(&name);
let embed_title = sanitize_html_opt(&embed_title);
let embed_description = sanitize_html_opt(&embed_description);
PostInsertForm {
name,
url: url.map(Into::into),

@ -12,7 +12,10 @@ use activitypub_federation::{
traits::Object,
};
use chrono::NaiveDateTime;
use lemmy_api_common::{context::LemmyContext, utils::check_person_block};
use lemmy_api_common::{
context::LemmyContext,
utils::{check_person_block, sanitize_html},
};
use lemmy_db_schema::{
source::{
person::Person,
@ -118,10 +121,13 @@ impl Object for ApubPrivateMessage {
let recipient = note.to[0].dereference(context).await?;
check_person_block(creator.id, recipient.id, &mut context.pool()).await?;
let content = read_from_string_or_source(&note.content, &None, &note.source);
let content = sanitize_html(&content);
let form = PrivateMessageInsertForm {
creator_id: creator.id,
recipient_id: recipient.id,
content: read_from_string_or_source(&note.content, &None, &note.source),
content,
published: note.published.map(|u| u.naive_local()),
updated: note.updated.map(|u| u.naive_local()),
deleted: Some(false),

@ -23,7 +23,10 @@ use activitypub_federation::{
},
};
use chrono::{DateTime, FixedOffset};
use lemmy_api_common::{context::LemmyContext, utils::local_site_opt_to_slur_regex};
use lemmy_api_common::{
context::LemmyContext,
utils::{local_site_opt_to_slur_regex, sanitize_html, sanitize_html_opt},
};
use lemmy_db_schema::{
newtypes::InstanceId,
source::community::{CommunityInsertForm, CommunityUpdateForm},
@ -94,10 +97,15 @@ impl Group {
}
pub(crate) fn into_insert_form(self, instance_id: InstanceId) -> CommunityInsertForm {
let name = sanitize_html(&self.preferred_username);
let title = sanitize_html(&self.name.unwrap_or(self.preferred_username));
let description = read_from_string_or_source_opt(&self.summary, &None, &self.source);
let description = sanitize_html_opt(&description);
CommunityInsertForm {
name: self.preferred_username.clone(),
title: self.name.unwrap_or(self.preferred_username),
description: read_from_string_or_source_opt(&self.summary, &None, &self.source),
name,
title,
description,
removed: None,
published: self.published.map(|u| u.naive_local()),
updated: self.updated.map(|u| u.naive_local()),

@ -197,12 +197,12 @@ pub fn is_email_regex(test: &str) -> bool {
EMAIL_REGEX.is_match(test)
}
pub fn diesel_option_overwrite(opt: &Option<String>) -> Option<Option<String>> {
pub fn diesel_option_overwrite(opt: Option<String>) -> Option<Option<String>> {
match opt {
// An empty string is an erase
Some(unwrapped) => {
if !unwrapped.eq("") {
Some(Some(unwrapped.clone()))
Some(Some(unwrapped))
} else {
Some(None)
}
@ -445,10 +445,10 @@ mod tests {
#[test]
fn test_diesel_option_overwrite() {
assert_eq!(diesel_option_overwrite(&None), None);
assert_eq!(diesel_option_overwrite(&Some(String::new())), Some(None));
assert_eq!(diesel_option_overwrite(None), None);
assert_eq!(diesel_option_overwrite(Some(String::new())), Some(None));
assert_eq!(
diesel_option_overwrite(&Some("test".to_string())),
diesel_option_overwrite(Some("test".to_string())),
Some(Some("test".to_string()))
);
}

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