-use crate::site::FederatedInstances;
-use diesel::PgConnection;
-use lemmy_db_queries::{
- source::{community::Community_, person_block::PersonBlock_, site::Site_},
- Crud,
- DbPool,
- Readable,
-};
-use lemmy_db_schema::{
- source::{
- comment::Comment,
- community::Community,
- person::Person,
- person_block::PersonBlock,
- person_mention::{PersonMention, PersonMentionForm},
- post::{Post, PostRead, PostReadForm},
- secret::Secret,
- site::Site,
- },
- CommunityId,
- LocalUserId,
- PersonId,
- PostId,
-};
-use lemmy_db_views::local_user_view::{LocalUserSettingsView, LocalUserView};
-use lemmy_db_views_actor::{
- community_person_ban_view::CommunityPersonBanView,
- community_view::CommunityView,
-};
-use lemmy_utils::{
- claims::Claims,
- email::send_email,
- settings::structs::{FederationConfig, Settings},
- utils::MentionData,
- ApiError,
- LemmyError,
-};
-use log::error;
-use url::Url;
-
-pub async fn blocking<F, T>(pool: &DbPool, f: F) -> Result<T, LemmyError>
-where
- F: FnOnce(&diesel::PgConnection) -> T + Send + 'static,
- T: Send + 'static,
-{
- let pool = pool.clone();
- let res = actix_web::web::block(move || {
- let conn = pool.get()?;
- let res = (f)(&conn);
- Ok(res) as Result<T, LemmyError>
- })
- .await?;
-
- res
-}
-
-pub async fn send_local_notifs(
- mentions: Vec<MentionData>,
- comment: Comment,
- person: Person,
- post: Post,
- pool: &DbPool,
- do_send_email: bool,
- settings: &Settings,
-) -> Result<Vec<LocalUserId>, LemmyError> {
- let settings = settings.to_owned();
- let ids = blocking(pool, move |conn| {
- do_send_local_notifs(
- conn,
- &mentions,
- &comment,
- &person,
- &post,
- do_send_email,
- &settings,
- )
- })
- .await?;
-
- Ok(ids)
-}
-
-fn do_send_local_notifs(
- conn: &PgConnection,
- mentions: &[MentionData],
- comment: &Comment,
- person: &Person,
- post: &Post,
- do_send_email: bool,
- settings: &Settings,
-) -> Vec<LocalUserId> {
- let mut recipient_ids = Vec::new();
-
- // Send the local mentions
- for mention in mentions
- .iter()
- .filter(|m| m.is_local(&settings.hostname) && m.name.ne(&person.name))
- .collect::<Vec<&MentionData>>()
- {
- if let Ok(mention_user_view) = LocalUserView::read_from_name(conn, &mention.name) {
- // TODO
- // At some point, make it so you can't tag the parent creator either
- // This can cause two notifications, one for reply and the other for mention
- recipient_ids.push(mention_user_view.local_user.id);
-
- let user_mention_form = PersonMentionForm {
- recipient_id: mention_user_view.person.id,
- comment_id: comment.id,
- read: None,
- };
-
- // Allow this to fail softly, since comment edits might re-update or replace it
- // Let the uniqueness handle this fail
- PersonMention::create(conn, &user_mention_form).ok();
-
- // Send an email to those local users that have notifications on
- if do_send_email {
- send_email_to_user(
- &mention_user_view,
- "Mentioned by",
- "Person Mention",
- &comment.content,
- settings,
- )
- }
- }
- }
-
- // Send notifs to the parent commenter / poster
- match comment.parent_id {
- Some(parent_id) => {
- if let Ok(parent_comment) = Comment::read(conn, parent_id) {
- // Don't send a notif to yourself
- if parent_comment.creator_id != person.id {
- // Get the parent commenter local_user
- if let Ok(parent_user_view) = LocalUserView::read_person(conn, parent_comment.creator_id)
- {
- recipient_ids.push(parent_user_view.local_user.id);
-
- if do_send_email {
- send_email_to_user(
- &parent_user_view,
- "Reply from",
- "Comment Reply",
- &comment.content,
- settings,
- )
- }
- }
- }
- }
- }
- // Its a post
- None => {
- if post.creator_id != person.id {
- if let Ok(parent_user_view) = LocalUserView::read_person(conn, post.creator_id) {
- recipient_ids.push(parent_user_view.local_user.id);
-
- if do_send_email {
- send_email_to_user(
- &parent_user_view,
- "Reply from",
- "Post Reply",
- &comment.content,
- settings,
- )
- }
- }
- }
- }
- };
- recipient_ids
-}
-
-pub fn send_email_to_user(
- local_user_view: &LocalUserView,
- subject_text: &str,
- body_text: &str,
- comment_content: &str,
- settings: &Settings,
-) {
- if local_user_view.person.banned || !local_user_view.local_user.send_notifications_to_email {
- return;
- }
-
- if let Some(user_email) = &local_user_view.local_user.email {
- let subject = &format!(
- "{} - {} {}",
- subject_text, settings.hostname, local_user_view.person.name,
- );
- let html = &format!(
- "<h1>{}</h1><br><div>{} - {}</div><br><a href={}/inbox>inbox</a>",
- body_text,
- local_user_view.person.name,
- comment_content,
- settings.get_protocol_and_hostname()
- );
- match send_email(
- subject,
- user_email,
- &local_user_view.person.name,
- html,
- settings,
- ) {
- Ok(_o) => _o,
- Err(e) => error!("{}", e),
- };
- }
-}
-
-pub async fn is_mod_or_admin(
- pool: &DbPool,
- person_id: PersonId,
- community_id: CommunityId,
-) -> Result<(), LemmyError> {
- let is_mod_or_admin = blocking(pool, move |conn| {
- CommunityView::is_mod_or_admin(conn, person_id, community_id)
- })
- .await?;
- if !is_mod_or_admin {
- return Err(ApiError::err_plain("not_a_mod_or_admin").into());
- }
- Ok(())
-}
-
-pub fn is_admin(local_user_view: &LocalUserView) -> Result<(), LemmyError> {
- if !local_user_view.person.admin {
- return Err(ApiError::err_plain("not_an_admin").into());
- }
- Ok(())
-}
-
-pub async fn get_post(post_id: PostId, pool: &DbPool) -> Result<Post, LemmyError> {
- blocking(pool, move |conn| Post::read(conn, post_id))
- .await?
- .map_err(|_| ApiError::err_plain("couldnt_find_post").into())
-}
-
-pub async fn mark_post_as_read(
- person_id: PersonId,
- post_id: PostId,
- pool: &DbPool,
-) -> Result<PostRead, LemmyError> {
- let post_read_form = PostReadForm { post_id, person_id };
-
- blocking(pool, move |conn| {
- PostRead::mark_as_read(conn, &post_read_form)
- })
- .await?
- .map_err(|_| ApiError::err_plain("couldnt_mark_post_as_read").into())
-}
-
-pub async fn get_local_user_view_from_jwt(
- jwt: &str,
- pool: &DbPool,
- secret: &Secret,
-) -> Result<LocalUserView, LemmyError> {
- let claims = Claims::decode(jwt, &secret.jwt_secret)
- .map_err(|e| ApiError::err("not_logged_in", e))?
- .claims;
- let local_user_id = LocalUserId(claims.sub);
- let local_user_view =
- blocking(pool, move |conn| LocalUserView::read(conn, local_user_id)).await??;
- // Check for a site ban
- if local_user_view.person.banned {
- return Err(ApiError::err_plain("site_ban").into());
- }
-
- // Check for user deletion
- if local_user_view.person.deleted {
- return Err(ApiError::err_plain("deleted").into());
- }
-
- check_validator_time(&local_user_view.local_user.validator_time, &claims)?;
-
- Ok(local_user_view)
-}
-
-/// Checks if user's token was issued before user's password reset.
-pub fn check_validator_time(
- validator_time: &chrono::NaiveDateTime,
- claims: &Claims,
-) -> Result<(), LemmyError> {
- let user_validation_time = validator_time.timestamp();
- if user_validation_time > claims.iat {
- Err(ApiError::err_plain("not_logged_in").into())
- } else {
- Ok(())
- }
-}
-
-pub async fn get_local_user_view_from_jwt_opt(
- jwt: &Option<String>,
- pool: &DbPool,
- secret: &Secret,
-) -> Result<Option<LocalUserView>, LemmyError> {
- match jwt {
- Some(jwt) => Ok(Some(get_local_user_view_from_jwt(jwt, pool, secret).await?)),
- None => Ok(None),
- }
-}
-
-pub async fn get_local_user_settings_view_from_jwt(
- jwt: &str,
- pool: &DbPool,
- secret: &Secret,
-) -> Result<LocalUserSettingsView, LemmyError> {
- let claims = Claims::decode(jwt, &secret.jwt_secret)
- .map_err(|e| ApiError::err("not_logged_in", e))?
- .claims;
- let local_user_id = LocalUserId(claims.sub);
- let local_user_view = blocking(pool, move |conn| {
- LocalUserSettingsView::read(conn, local_user_id)
- })
- .await??;
- // Check for a site ban
- if local_user_view.person.banned {
- return Err(ApiError::err_plain("site_ban").into());
- }
-
- check_validator_time(&local_user_view.local_user.validator_time, &claims)?;
-
- Ok(local_user_view)
-}
-
-pub async fn get_local_user_settings_view_from_jwt_opt(
- jwt: &Option<String>,
- pool: &DbPool,
- secret: &Secret,
-) -> Result<Option<LocalUserSettingsView>, LemmyError> {
- match jwt {
- Some(jwt) => Ok(Some(
- get_local_user_settings_view_from_jwt(jwt, pool, secret).await?,
- )),
- None => Ok(None),
- }
-}
-
-pub async fn check_community_ban(
- person_id: PersonId,
- community_id: CommunityId,
- pool: &DbPool,
-) -> Result<(), LemmyError> {
- let is_banned =
- move |conn: &'_ _| CommunityPersonBanView::get(conn, person_id, community_id).is_ok();
- if blocking(pool, is_banned).await? {
- Err(ApiError::err_plain("community_ban").into())
- } else {
- Ok(())
- }
-}
-
-pub async fn check_person_block(
- my_id: PersonId,
- potential_blocker_id: PersonId,
- pool: &DbPool,
-) -> Result<(), LemmyError> {
- let is_blocked = move |conn: &'_ _| PersonBlock::read(conn, potential_blocker_id, my_id).is_ok();
- if blocking(pool, is_blocked).await? {
- Err(ApiError::err_plain("person_block").into())
- } else {
- Ok(())
- }
-}
-
-pub async fn check_downvotes_enabled(score: i16, pool: &DbPool) -> Result<(), LemmyError> {
- if score == -1 {
- let site = blocking(pool, move |conn| Site::read_simple(conn)).await??;
- if !site.enable_downvotes {
- return Err(ApiError::err_plain("downvotes_disabled").into());
- }
- }
- Ok(())
-}
-
-pub async fn build_federated_instances(
- pool: &DbPool,
- federation_config: &FederationConfig,
- hostname: &str,
-) -> Result<Option<FederatedInstances>, LemmyError> {
- let federation = federation_config.to_owned();
- if federation.enabled {
- let distinct_communities = blocking(pool, move |conn| {
- Community::distinct_federated_communities(conn)
- })
- .await??;
-
- let allowed = federation.allowed_instances;
- let blocked = federation.blocked_instances;
-
- let mut linked = distinct_communities
- .iter()
- .map(|actor_id| Ok(Url::parse(actor_id)?.host_str().unwrap_or("").to_string()))
- .collect::<Result<Vec<String>, LemmyError>>()?;
-
- if let Some(allowed) = allowed.as_ref() {
- linked.extend_from_slice(allowed);
- }
-
- if let Some(blocked) = blocked.as_ref() {
- linked.retain(|a| !blocked.contains(a) && !a.eq(hostname));
- }
-
- // Sort and remove dupes
- linked.sort_unstable();
- linked.dedup();
-
- Ok(Some(FederatedInstances {
- linked,
- allowed,
- blocked,
- }))
- } else {
- Ok(None)
- }
-}
-
-/// Checks the password length
-pub fn password_length_check(pass: &str) -> Result<(), LemmyError> {
- if !(10..=60).contains(&pass.len()) {
- Err(ApiError::err_plain("invalid_password").into())
- } else {
- Ok(())
- }
-}
-
-/// Checks the site description length
-pub fn site_description_length_check(description: &str) -> Result<(), LemmyError> {
- if description.len() > 150 {
- Err(ApiError::err_plain("site_description_length_overflow").into())
- } else {
- Ok(())
- }
-}
-
-/// Checks for a honeypot. If this field is filled, fail the rest of the function
-pub fn honeypot_check(honeypot: &Option<String>) -> Result<(), LemmyError> {
- if honeypot.is_some() {
- Err(ApiError::err_plain("honeypot_fail").into())
- } else {
- Ok(())
- }
-}