1 use crate::claims::Claims;
2 use actix_web::{web, web::Data};
3 use lemmy_db_queries::{
5 community::{CommunityModerator_, Community_},
7 user::UserSafeSettings_,
12 use lemmy_db_schema::source::{
13 community::{Community, CommunityModerator},
16 user::{UserSafeSettings, User_},
18 use lemmy_db_views_actor::{
19 community_user_ban_view::CommunityUserBanView,
20 community_view::CommunityView,
22 use lemmy_structs::{blocking, comment::*, community::*, post::*, site::*, user::*, websocket::*};
23 use lemmy_utils::{settings::Settings, APIError, ConnectionId, LemmyError};
24 use lemmy_websocket::{serialize_websocket_message, LemmyContext, UserOperation};
25 use serde::Deserialize;
26 use std::process::Command;
38 #[async_trait::async_trait(?Send)]
40 type Response: serde::ser::Serialize + Send;
44 context: &Data<LemmyContext>,
45 websocket_id: Option<ConnectionId>,
46 ) -> Result<Self::Response, LemmyError>;
49 pub(crate) async fn is_mod_or_admin(
53 ) -> Result<(), LemmyError> {
54 let is_mod_or_admin = blocking(pool, move |conn| {
55 CommunityView::is_mod_or_admin(conn, user_id, community_id)
59 return Err(APIError::err("not_a_mod_or_admin").into());
63 pub async fn is_admin(pool: &DbPool, user_id: i32) -> Result<(), LemmyError> {
64 let user = blocking(pool, move |conn| User_::read(conn, user_id)).await??;
66 return Err(APIError::err("not_an_admin").into());
71 pub(crate) async fn get_post(post_id: i32, pool: &DbPool) -> Result<Post, LemmyError> {
72 match blocking(pool, move |conn| Post::read(conn, post_id)).await? {
74 Err(_e) => Err(APIError::err("couldnt_find_post").into()),
78 pub(crate) async fn get_user_from_jwt(jwt: &str, pool: &DbPool) -> Result<User_, LemmyError> {
79 let claims = match Claims::decode(&jwt) {
80 Ok(claims) => claims.claims,
81 Err(_e) => return Err(APIError::err("not_logged_in").into()),
83 let user_id = claims.id;
84 let user = blocking(pool, move |conn| User_::read(conn, user_id)).await??;
85 // Check for a site ban
87 return Err(APIError::err("site_ban").into());
92 pub(crate) async fn get_user_from_jwt_opt(
95 ) -> Result<Option<User_>, LemmyError> {
97 Some(jwt) => Ok(Some(get_user_from_jwt(jwt, pool).await?)),
102 pub(crate) async fn get_user_safe_settings_from_jwt(
105 ) -> Result<UserSafeSettings, LemmyError> {
106 let claims = match Claims::decode(&jwt) {
107 Ok(claims) => claims.claims,
108 Err(_e) => return Err(APIError::err("not_logged_in").into()),
110 let user_id = claims.id;
111 let user = blocking(pool, move |conn| UserSafeSettings::read(conn, user_id)).await??;
112 // Check for a site ban
114 return Err(APIError::err("site_ban").into());
119 pub(crate) async fn get_user_safe_settings_from_jwt_opt(
120 jwt: &Option<String>,
122 ) -> Result<Option<UserSafeSettings>, LemmyError> {
124 Some(jwt) => Ok(Some(get_user_safe_settings_from_jwt(jwt, pool).await?)),
129 pub(crate) async fn check_community_ban(
133 ) -> Result<(), LemmyError> {
134 let is_banned = move |conn: &'_ _| CommunityUserBanView::get(conn, user_id, community_id).is_ok();
135 if blocking(pool, is_banned).await? {
136 Err(APIError::err("community_ban").into())
142 pub(crate) async fn check_downvotes_enabled(score: i16, pool: &DbPool) -> Result<(), LemmyError> {
144 let site = blocking(pool, move |conn| Site::read_simple(conn)).await??;
145 if !site.enable_downvotes {
146 return Err(APIError::err("downvotes_disabled").into());
152 /// Returns a list of communities that the user moderates
153 /// or if a community_id is supplied validates the user is a moderator
154 /// of that community and returns the community id in a vec
156 /// * `user_id` - the user id of the moderator
157 /// * `community_id` - optional community id to check for moderator privileges
158 /// * `pool` - the diesel db pool
159 pub(crate) async fn collect_moderated_communities(
161 community_id: Option<i32>,
163 ) -> Result<Vec<i32>, LemmyError> {
164 if let Some(community_id) = community_id {
165 // if the user provides a community_id, just check for mod/admin privileges
166 is_mod_or_admin(pool, user_id, community_id).await?;
167 Ok(vec![community_id])
169 let ids = blocking(pool, move |conn: &'_ _| {
170 CommunityModerator::get_user_moderated_communities(conn, user_id)
177 pub(crate) fn check_optional_url(item: &Option<Option<String>>) -> Result<(), LemmyError> {
178 if let Some(Some(item)) = &item {
179 if Url::parse(item).is_err() {
180 return Err(APIError::err("invalid_url").into());
186 pub(crate) async fn build_federated_instances(
188 ) -> Result<Option<FederatedInstances>, LemmyError> {
189 if Settings::get().federation.enabled {
190 let distinct_communities = blocking(pool, move |conn| {
191 Community::distinct_federated_communities(conn)
195 let allowed = Settings::get().get_allowed_instances();
196 let blocked = Settings::get().get_blocked_instances();
198 let mut linked = distinct_communities
200 .map(|actor_id| Ok(Url::parse(actor_id)?.host_str().unwrap_or("").to_string()))
201 .collect::<Result<Vec<String>, LemmyError>>()?;
203 linked.extend_from_slice(&allowed);
204 linked.retain(|a| !blocked.contains(a) && !a.eq("") && !a.eq(&Settings::get().hostname));
206 // Sort and remove dupes
207 linked.sort_unstable();
210 Ok(Some(FederatedInstances {
220 pub async fn match_websocket_operation(
221 context: LemmyContext,
225 ) -> Result<String, LemmyError> {
228 UserOperation::Login => do_websocket_operation::<Login>(context, id, op, data).await,
229 UserOperation::Register => do_websocket_operation::<Register>(context, id, op, data).await,
230 UserOperation::GetCaptcha => do_websocket_operation::<GetCaptcha>(context, id, op, data).await,
231 UserOperation::GetUserDetails => {
232 do_websocket_operation::<GetUserDetails>(context, id, op, data).await
234 UserOperation::GetReplies => do_websocket_operation::<GetReplies>(context, id, op, data).await,
235 UserOperation::AddAdmin => do_websocket_operation::<AddAdmin>(context, id, op, data).await,
236 UserOperation::BanUser => do_websocket_operation::<BanUser>(context, id, op, data).await,
237 UserOperation::GetUserMentions => {
238 do_websocket_operation::<GetUserMentions>(context, id, op, data).await
240 UserOperation::MarkUserMentionAsRead => {
241 do_websocket_operation::<MarkUserMentionAsRead>(context, id, op, data).await
243 UserOperation::MarkAllAsRead => {
244 do_websocket_operation::<MarkAllAsRead>(context, id, op, data).await
246 UserOperation::DeleteAccount => {
247 do_websocket_operation::<DeleteAccount>(context, id, op, data).await
249 UserOperation::PasswordReset => {
250 do_websocket_operation::<PasswordReset>(context, id, op, data).await
252 UserOperation::PasswordChange => {
253 do_websocket_operation::<PasswordChange>(context, id, op, data).await
255 UserOperation::UserJoin => do_websocket_operation::<UserJoin>(context, id, op, data).await,
256 UserOperation::PostJoin => do_websocket_operation::<PostJoin>(context, id, op, data).await,
257 UserOperation::CommunityJoin => {
258 do_websocket_operation::<CommunityJoin>(context, id, op, data).await
260 UserOperation::ModJoin => do_websocket_operation::<ModJoin>(context, id, op, data).await,
261 UserOperation::SaveUserSettings => {
262 do_websocket_operation::<SaveUserSettings>(context, id, op, data).await
264 UserOperation::GetReportCount => {
265 do_websocket_operation::<GetReportCount>(context, id, op, data).await
268 // Private Message ops
269 UserOperation::CreatePrivateMessage => {
270 do_websocket_operation::<CreatePrivateMessage>(context, id, op, data).await
272 UserOperation::EditPrivateMessage => {
273 do_websocket_operation::<EditPrivateMessage>(context, id, op, data).await
275 UserOperation::DeletePrivateMessage => {
276 do_websocket_operation::<DeletePrivateMessage>(context, id, op, data).await
278 UserOperation::MarkPrivateMessageAsRead => {
279 do_websocket_operation::<MarkPrivateMessageAsRead>(context, id, op, data).await
281 UserOperation::GetPrivateMessages => {
282 do_websocket_operation::<GetPrivateMessages>(context, id, op, data).await
286 UserOperation::GetModlog => do_websocket_operation::<GetModlog>(context, id, op, data).await,
287 UserOperation::CreateSite => do_websocket_operation::<CreateSite>(context, id, op, data).await,
288 UserOperation::EditSite => do_websocket_operation::<EditSite>(context, id, op, data).await,
289 UserOperation::GetSite => do_websocket_operation::<GetSite>(context, id, op, data).await,
290 UserOperation::GetSiteConfig => {
291 do_websocket_operation::<GetSiteConfig>(context, id, op, data).await
293 UserOperation::SaveSiteConfig => {
294 do_websocket_operation::<SaveSiteConfig>(context, id, op, data).await
296 UserOperation::Search => do_websocket_operation::<Search>(context, id, op, data).await,
297 UserOperation::TransferCommunity => {
298 do_websocket_operation::<TransferCommunity>(context, id, op, data).await
300 UserOperation::TransferSite => {
301 do_websocket_operation::<TransferSite>(context, id, op, data).await
303 UserOperation::ListCategories => {
304 do_websocket_operation::<ListCategories>(context, id, op, data).await
308 UserOperation::GetCommunity => {
309 do_websocket_operation::<GetCommunity>(context, id, op, data).await
311 UserOperation::ListCommunities => {
312 do_websocket_operation::<ListCommunities>(context, id, op, data).await
314 UserOperation::CreateCommunity => {
315 do_websocket_operation::<CreateCommunity>(context, id, op, data).await
317 UserOperation::EditCommunity => {
318 do_websocket_operation::<EditCommunity>(context, id, op, data).await
320 UserOperation::DeleteCommunity => {
321 do_websocket_operation::<DeleteCommunity>(context, id, op, data).await
323 UserOperation::RemoveCommunity => {
324 do_websocket_operation::<RemoveCommunity>(context, id, op, data).await
326 UserOperation::FollowCommunity => {
327 do_websocket_operation::<FollowCommunity>(context, id, op, data).await
329 UserOperation::GetFollowedCommunities => {
330 do_websocket_operation::<GetFollowedCommunities>(context, id, op, data).await
332 UserOperation::BanFromCommunity => {
333 do_websocket_operation::<BanFromCommunity>(context, id, op, data).await
335 UserOperation::AddModToCommunity => {
336 do_websocket_operation::<AddModToCommunity>(context, id, op, data).await
340 UserOperation::CreatePost => do_websocket_operation::<CreatePost>(context, id, op, data).await,
341 UserOperation::GetPost => do_websocket_operation::<GetPost>(context, id, op, data).await,
342 UserOperation::GetPosts => do_websocket_operation::<GetPosts>(context, id, op, data).await,
343 UserOperation::EditPost => do_websocket_operation::<EditPost>(context, id, op, data).await,
344 UserOperation::DeletePost => do_websocket_operation::<DeletePost>(context, id, op, data).await,
345 UserOperation::RemovePost => do_websocket_operation::<RemovePost>(context, id, op, data).await,
346 UserOperation::LockPost => do_websocket_operation::<LockPost>(context, id, op, data).await,
347 UserOperation::StickyPost => do_websocket_operation::<StickyPost>(context, id, op, data).await,
348 UserOperation::CreatePostLike => {
349 do_websocket_operation::<CreatePostLike>(context, id, op, data).await
351 UserOperation::SavePost => do_websocket_operation::<SavePost>(context, id, op, data).await,
352 UserOperation::CreatePostReport => {
353 do_websocket_operation::<CreatePostReport>(context, id, op, data).await
355 UserOperation::ListPostReports => {
356 do_websocket_operation::<ListPostReports>(context, id, op, data).await
358 UserOperation::ResolvePostReport => {
359 do_websocket_operation::<ResolvePostReport>(context, id, op, data).await
363 UserOperation::CreateComment => {
364 do_websocket_operation::<CreateComment>(context, id, op, data).await
366 UserOperation::EditComment => {
367 do_websocket_operation::<EditComment>(context, id, op, data).await
369 UserOperation::DeleteComment => {
370 do_websocket_operation::<DeleteComment>(context, id, op, data).await
372 UserOperation::RemoveComment => {
373 do_websocket_operation::<RemoveComment>(context, id, op, data).await
375 UserOperation::MarkCommentAsRead => {
376 do_websocket_operation::<MarkCommentAsRead>(context, id, op, data).await
378 UserOperation::SaveComment => {
379 do_websocket_operation::<SaveComment>(context, id, op, data).await
381 UserOperation::GetComments => {
382 do_websocket_operation::<GetComments>(context, id, op, data).await
384 UserOperation::CreateCommentLike => {
385 do_websocket_operation::<CreateCommentLike>(context, id, op, data).await
387 UserOperation::CreateCommentReport => {
388 do_websocket_operation::<CreateCommentReport>(context, id, op, data).await
390 UserOperation::ListCommentReports => {
391 do_websocket_operation::<ListCommentReports>(context, id, op, data).await
393 UserOperation::ResolveCommentReport => {
394 do_websocket_operation::<ResolveCommentReport>(context, id, op, data).await
399 async fn do_websocket_operation<'a, 'b, Data>(
400 context: LemmyContext,
404 ) -> Result<String, LemmyError>
406 for<'de> Data: Deserialize<'de> + 'a,
409 let parsed_data: Data = serde_json::from_str(&data)?;
410 let res = parsed_data
411 .perform(&web::Data::new(context), Some(id))
413 serialize_websocket_message(&op, &res)
416 pub(crate) fn captcha_espeak_wav_base64(captcha: &str) -> Result<String, LemmyError> {
417 let mut built_text = String::new();
419 // Building proper speech text for espeak
420 for mut c in captcha.chars() {
421 let new_str = if c.is_alphabetic() {
422 if c.is_lowercase() {
423 c.make_ascii_uppercase();
424 format!("lower case {} ... ", c)
426 c.make_ascii_uppercase();
427 format!("capital {} ... ", c)
433 built_text.push_str(&new_str);
436 espeak_wav_base64(&built_text)
439 pub(crate) fn espeak_wav_base64(text: &str) -> Result<String, LemmyError> {
440 // Make a temp file path
441 let uuid = uuid::Uuid::new_v4().to_string();
442 let file_path = format!("/tmp/lemmy_espeak_{}.wav", &uuid);
444 // Write the wav file
445 Command::new("espeak")
451 // Read the wav file bytes
452 let bytes = std::fs::read(&file_path)?;
455 std::fs::remove_file(file_path)?;
458 let base64 = base64::encode(bytes);
465 use crate::captcha_espeak_wav_base64;
469 assert!(captcha_espeak_wav_base64("WxRt2l").is_ok())