1 use actix_web::{web, web::Data};
2 use lemmy_api_structs::{
11 use lemmy_db_queries::{
13 community::{CommunityModerator_, Community_},
15 user::UserSafeSettings_,
20 use lemmy_db_schema::source::{
21 community::{Community, CommunityModerator},
24 user::{UserSafeSettings, User_},
26 use lemmy_db_views_actor::{
27 community_user_ban_view::CommunityUserBanView,
28 community_view::CommunityView,
32 settings::structs::Settings,
37 use lemmy_websocket::{serialize_websocket_message, LemmyContext, UserOperation};
38 use serde::Deserialize;
39 use std::process::Command;
50 #[async_trait::async_trait(?Send)]
52 type Response: serde::ser::Serialize + Send;
56 context: &Data<LemmyContext>,
57 websocket_id: Option<ConnectionId>,
58 ) -> Result<Self::Response, LemmyError>;
61 pub(crate) async fn is_mod_or_admin(
65 ) -> Result<(), LemmyError> {
66 let is_mod_or_admin = blocking(pool, move |conn| {
67 CommunityView::is_mod_or_admin(conn, user_id, community_id)
71 return Err(ApiError::err("not_a_mod_or_admin").into());
75 pub async fn is_admin(pool: &DbPool, user_id: i32) -> Result<(), LemmyError> {
76 let user = blocking(pool, move |conn| User_::read(conn, user_id)).await??;
78 return Err(ApiError::err("not_an_admin").into());
83 pub(crate) async fn get_post(post_id: i32, pool: &DbPool) -> Result<Post, LemmyError> {
84 match blocking(pool, move |conn| Post::read(conn, post_id)).await? {
86 Err(_e) => Err(ApiError::err("couldnt_find_post").into()),
90 pub(crate) async fn get_user_from_jwt(jwt: &str, pool: &DbPool) -> Result<User_, LemmyError> {
91 let claims = match Claims::decode(&jwt) {
92 Ok(claims) => claims.claims,
93 Err(_e) => return Err(ApiError::err("not_logged_in").into()),
95 let user_id = claims.id;
96 let user = blocking(pool, move |conn| User_::read(conn, user_id)).await??;
97 // Check for a site ban
99 return Err(ApiError::err("site_ban").into());
104 pub(crate) async fn get_user_from_jwt_opt(
105 jwt: &Option<String>,
107 ) -> Result<Option<User_>, LemmyError> {
109 Some(jwt) => Ok(Some(get_user_from_jwt(jwt, pool).await?)),
114 pub(crate) async fn get_user_safe_settings_from_jwt(
117 ) -> Result<UserSafeSettings, LemmyError> {
118 let claims = match Claims::decode(&jwt) {
119 Ok(claims) => claims.claims,
120 Err(_e) => return Err(ApiError::err("not_logged_in").into()),
122 let user_id = claims.id;
123 let user = blocking(pool, move |conn| UserSafeSettings::read(conn, user_id)).await??;
124 // Check for a site ban
126 return Err(ApiError::err("site_ban").into());
131 pub(crate) async fn get_user_safe_settings_from_jwt_opt(
132 jwt: &Option<String>,
134 ) -> Result<Option<UserSafeSettings>, LemmyError> {
136 Some(jwt) => Ok(Some(get_user_safe_settings_from_jwt(jwt, pool).await?)),
141 pub(crate) async fn check_community_ban(
145 ) -> Result<(), LemmyError> {
146 let is_banned = move |conn: &'_ _| CommunityUserBanView::get(conn, user_id, community_id).is_ok();
147 if blocking(pool, is_banned).await? {
148 Err(ApiError::err("community_ban").into())
154 pub(crate) async fn check_downvotes_enabled(score: i16, pool: &DbPool) -> Result<(), LemmyError> {
156 let site = blocking(pool, move |conn| Site::read_simple(conn)).await??;
157 if !site.enable_downvotes {
158 return Err(ApiError::err("downvotes_disabled").into());
164 /// Returns a list of communities that the user moderates
165 /// or if a community_id is supplied validates the user is a moderator
166 /// of that community and returns the community id in a vec
168 /// * `user_id` - the user id of the moderator
169 /// * `community_id` - optional community id to check for moderator privileges
170 /// * `pool` - the diesel db pool
171 pub(crate) async fn collect_moderated_communities(
173 community_id: Option<i32>,
175 ) -> Result<Vec<i32>, LemmyError> {
176 if let Some(community_id) = community_id {
177 // if the user provides a community_id, just check for mod/admin privileges
178 is_mod_or_admin(pool, user_id, community_id).await?;
179 Ok(vec![community_id])
181 let ids = blocking(pool, move |conn: &'_ _| {
182 CommunityModerator::get_user_moderated_communities(conn, user_id)
189 pub(crate) async fn build_federated_instances(
191 ) -> Result<Option<FederatedInstances>, LemmyError> {
192 if Settings::get().federation().enabled {
193 let distinct_communities = blocking(pool, move |conn| {
194 Community::distinct_federated_communities(conn)
198 let allowed = Settings::get().get_allowed_instances();
199 let blocked = Settings::get().get_blocked_instances();
201 let mut linked = distinct_communities
203 .map(|actor_id| Ok(Url::parse(actor_id)?.host_str().unwrap_or("").to_string()))
204 .collect::<Result<Vec<String>, LemmyError>>()?;
206 if let Some(allowed) = allowed.as_ref() {
207 linked.extend_from_slice(allowed);
210 if let Some(blocked) = blocked.as_ref() {
211 linked.retain(|a| !blocked.contains(a) && !a.eq(&Settings::get().hostname()));
214 // Sort and remove dupes
215 linked.sort_unstable();
218 Ok(Some(FederatedInstances {
228 pub async fn match_websocket_operation(
229 context: LemmyContext,
233 ) -> Result<String, LemmyError> {
236 UserOperation::Login => do_websocket_operation::<Login>(context, id, op, data).await,
237 UserOperation::Register => do_websocket_operation::<Register>(context, id, op, data).await,
238 UserOperation::GetCaptcha => do_websocket_operation::<GetCaptcha>(context, id, op, data).await,
239 UserOperation::GetUserDetails => {
240 do_websocket_operation::<GetUserDetails>(context, id, op, data).await
242 UserOperation::GetReplies => do_websocket_operation::<GetReplies>(context, id, op, data).await,
243 UserOperation::AddAdmin => do_websocket_operation::<AddAdmin>(context, id, op, data).await,
244 UserOperation::BanUser => do_websocket_operation::<BanUser>(context, id, op, data).await,
245 UserOperation::GetUserMentions => {
246 do_websocket_operation::<GetUserMentions>(context, id, op, data).await
248 UserOperation::MarkUserMentionAsRead => {
249 do_websocket_operation::<MarkUserMentionAsRead>(context, id, op, data).await
251 UserOperation::MarkAllAsRead => {
252 do_websocket_operation::<MarkAllAsRead>(context, id, op, data).await
254 UserOperation::DeleteAccount => {
255 do_websocket_operation::<DeleteAccount>(context, id, op, data).await
257 UserOperation::PasswordReset => {
258 do_websocket_operation::<PasswordReset>(context, id, op, data).await
260 UserOperation::PasswordChange => {
261 do_websocket_operation::<PasswordChange>(context, id, op, data).await
263 UserOperation::UserJoin => do_websocket_operation::<UserJoin>(context, id, op, data).await,
264 UserOperation::PostJoin => do_websocket_operation::<PostJoin>(context, id, op, data).await,
265 UserOperation::CommunityJoin => {
266 do_websocket_operation::<CommunityJoin>(context, id, op, data).await
268 UserOperation::ModJoin => do_websocket_operation::<ModJoin>(context, id, op, data).await,
269 UserOperation::SaveUserSettings => {
270 do_websocket_operation::<SaveUserSettings>(context, id, op, data).await
272 UserOperation::GetReportCount => {
273 do_websocket_operation::<GetReportCount>(context, id, op, data).await
276 // Private Message ops
277 UserOperation::CreatePrivateMessage => {
278 do_websocket_operation::<CreatePrivateMessage>(context, id, op, data).await
280 UserOperation::EditPrivateMessage => {
281 do_websocket_operation::<EditPrivateMessage>(context, id, op, data).await
283 UserOperation::DeletePrivateMessage => {
284 do_websocket_operation::<DeletePrivateMessage>(context, id, op, data).await
286 UserOperation::MarkPrivateMessageAsRead => {
287 do_websocket_operation::<MarkPrivateMessageAsRead>(context, id, op, data).await
289 UserOperation::GetPrivateMessages => {
290 do_websocket_operation::<GetPrivateMessages>(context, id, op, data).await
294 UserOperation::GetModlog => do_websocket_operation::<GetModlog>(context, id, op, data).await,
295 UserOperation::CreateSite => do_websocket_operation::<CreateSite>(context, id, op, data).await,
296 UserOperation::EditSite => do_websocket_operation::<EditSite>(context, id, op, data).await,
297 UserOperation::GetSite => do_websocket_operation::<GetSite>(context, id, op, data).await,
298 UserOperation::GetSiteConfig => {
299 do_websocket_operation::<GetSiteConfig>(context, id, op, data).await
301 UserOperation::SaveSiteConfig => {
302 do_websocket_operation::<SaveSiteConfig>(context, id, op, data).await
304 UserOperation::Search => do_websocket_operation::<Search>(context, id, op, data).await,
305 UserOperation::TransferCommunity => {
306 do_websocket_operation::<TransferCommunity>(context, id, op, data).await
308 UserOperation::TransferSite => {
309 do_websocket_operation::<TransferSite>(context, id, op, data).await
313 UserOperation::GetCommunity => {
314 do_websocket_operation::<GetCommunity>(context, id, op, data).await
316 UserOperation::ListCommunities => {
317 do_websocket_operation::<ListCommunities>(context, id, op, data).await
319 UserOperation::CreateCommunity => {
320 do_websocket_operation::<CreateCommunity>(context, id, op, data).await
322 UserOperation::EditCommunity => {
323 do_websocket_operation::<EditCommunity>(context, id, op, data).await
325 UserOperation::DeleteCommunity => {
326 do_websocket_operation::<DeleteCommunity>(context, id, op, data).await
328 UserOperation::RemoveCommunity => {
329 do_websocket_operation::<RemoveCommunity>(context, id, op, data).await
331 UserOperation::FollowCommunity => {
332 do_websocket_operation::<FollowCommunity>(context, id, op, data).await
334 UserOperation::GetFollowedCommunities => {
335 do_websocket_operation::<GetFollowedCommunities>(context, id, op, data).await
337 UserOperation::BanFromCommunity => {
338 do_websocket_operation::<BanFromCommunity>(context, id, op, data).await
340 UserOperation::AddModToCommunity => {
341 do_websocket_operation::<AddModToCommunity>(context, id, op, data).await
345 UserOperation::CreatePost => do_websocket_operation::<CreatePost>(context, id, op, data).await,
346 UserOperation::GetPost => do_websocket_operation::<GetPost>(context, id, op, data).await,
347 UserOperation::GetPosts => do_websocket_operation::<GetPosts>(context, id, op, data).await,
348 UserOperation::EditPost => do_websocket_operation::<EditPost>(context, id, op, data).await,
349 UserOperation::DeletePost => do_websocket_operation::<DeletePost>(context, id, op, data).await,
350 UserOperation::RemovePost => do_websocket_operation::<RemovePost>(context, id, op, data).await,
351 UserOperation::LockPost => do_websocket_operation::<LockPost>(context, id, op, data).await,
352 UserOperation::StickyPost => do_websocket_operation::<StickyPost>(context, id, op, data).await,
353 UserOperation::CreatePostLike => {
354 do_websocket_operation::<CreatePostLike>(context, id, op, data).await
356 UserOperation::SavePost => do_websocket_operation::<SavePost>(context, id, op, data).await,
357 UserOperation::CreatePostReport => {
358 do_websocket_operation::<CreatePostReport>(context, id, op, data).await
360 UserOperation::ListPostReports => {
361 do_websocket_operation::<ListPostReports>(context, id, op, data).await
363 UserOperation::ResolvePostReport => {
364 do_websocket_operation::<ResolvePostReport>(context, id, op, data).await
368 UserOperation::CreateComment => {
369 do_websocket_operation::<CreateComment>(context, id, op, data).await
371 UserOperation::EditComment => {
372 do_websocket_operation::<EditComment>(context, id, op, data).await
374 UserOperation::DeleteComment => {
375 do_websocket_operation::<DeleteComment>(context, id, op, data).await
377 UserOperation::RemoveComment => {
378 do_websocket_operation::<RemoveComment>(context, id, op, data).await
380 UserOperation::MarkCommentAsRead => {
381 do_websocket_operation::<MarkCommentAsRead>(context, id, op, data).await
383 UserOperation::SaveComment => {
384 do_websocket_operation::<SaveComment>(context, id, op, data).await
386 UserOperation::GetComments => {
387 do_websocket_operation::<GetComments>(context, id, op, data).await
389 UserOperation::CreateCommentLike => {
390 do_websocket_operation::<CreateCommentLike>(context, id, op, data).await
392 UserOperation::CreateCommentReport => {
393 do_websocket_operation::<CreateCommentReport>(context, id, op, data).await
395 UserOperation::ListCommentReports => {
396 do_websocket_operation::<ListCommentReports>(context, id, op, data).await
398 UserOperation::ResolveCommentReport => {
399 do_websocket_operation::<ResolveCommentReport>(context, id, op, data).await
404 async fn do_websocket_operation<'a, 'b, Data>(
405 context: LemmyContext,
409 ) -> Result<String, LemmyError>
411 for<'de> Data: Deserialize<'de> + 'a,
414 let parsed_data: Data = serde_json::from_str(&data)?;
415 let res = parsed_data
416 .perform(&web::Data::new(context), Some(id))
418 serialize_websocket_message(&op, &res)
421 pub(crate) fn captcha_espeak_wav_base64(captcha: &str) -> Result<String, LemmyError> {
422 let mut built_text = String::new();
424 // Building proper speech text for espeak
425 for mut c in captcha.chars() {
426 let new_str = if c.is_alphabetic() {
427 if c.is_lowercase() {
428 c.make_ascii_uppercase();
429 format!("lower case {} ... ", c)
431 c.make_ascii_uppercase();
432 format!("capital {} ... ", c)
438 built_text.push_str(&new_str);
441 espeak_wav_base64(&built_text)
444 pub(crate) fn espeak_wav_base64(text: &str) -> Result<String, LemmyError> {
445 // Make a temp file path
446 let uuid = uuid::Uuid::new_v4().to_string();
447 let file_path = format!("/tmp/lemmy_espeak_{}.wav", &uuid);
449 // Write the wav file
450 Command::new("espeak")
456 // Read the wav file bytes
457 let bytes = std::fs::read(&file_path)?;
460 std::fs::remove_file(file_path)?;
463 let base64 = base64::encode(bytes);
470 use crate::captcha_espeak_wav_base64;
474 assert!(captcha_espeak_wav_base64("WxRt2l").is_ok())