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https://github.com/LemmyNet/lemmy.git
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156 lines
5 KiB
Rust
156 lines
5 KiB
Rust
use crate::{
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activities::{
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comment::send_websocket_message as send_comment_message,
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community::send_websocket_message as send_community_message,
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post::send_websocket_message as send_post_message,
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verify_activity,
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verify_add_remove_moderator_target,
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verify_mod_action,
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verify_person_in_community,
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},
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fetcher::{
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community::get_or_fetch_and_upsert_community,
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objects::get_or_fetch_and_insert_post_or_comment,
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person::get_or_fetch_and_upsert_person,
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},
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CommunityType,
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PostOrComment,
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};
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use activitystreams::{activity::kind::RemoveType, base::AnyBase};
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use anyhow::anyhow;
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use lemmy_api_common::blocking;
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use lemmy_apub_lib::{values::PublicUrl, ActivityCommonFields, ActivityHandler};
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use lemmy_db_queries::{
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source::{comment::Comment_, community::Community_, post::Post_},
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Joinable,
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};
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use lemmy_db_schema::source::{
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comment::Comment,
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community::{Community, CommunityModerator, CommunityModeratorForm},
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post::Post,
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};
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use lemmy_utils::LemmyError;
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use lemmy_websocket::{LemmyContext, UserOperationCrud};
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use url::Url;
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// TODO: we can probably deduplicate a bunch of code between this and DeletePostCommentOrCommunity
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#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
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#[serde(rename_all = "camelCase")]
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pub struct RemovePostCommentCommunityOrMod {
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to: PublicUrl,
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pub(in crate::activities::removal) object: Url,
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cc: [Url; 1],
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#[serde(rename = "type")]
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kind: RemoveType,
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// if target is set, this is means remove mod from community
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target: Option<Url>,
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#[serde(flatten)]
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common: ActivityCommonFields,
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}
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#[async_trait::async_trait(?Send)]
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impl ActivityHandler for RemovePostCommentCommunityOrMod {
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async fn verify(
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&self,
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context: &LemmyContext,
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request_counter: &mut i32,
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) -> Result<(), LemmyError> {
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verify_activity(self.common())?;
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let object_community =
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get_or_fetch_and_upsert_community(&self.object, context, request_counter).await;
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// removing a community
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if object_community.is_ok() {
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verify_mod_action(&self.common.actor, self.object.clone(), context).await?;
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}
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// removing community mod
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else if let Some(target) = &self.target {
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verify_person_in_community(&self.common.actor, &self.cc[0], context, request_counter).await?;
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verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
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verify_add_remove_moderator_target(target, self.cc[0].clone())?;
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}
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// removing a post or comment
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else {
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verify_person_in_community(&self.common.actor, &self.cc[0], context, request_counter).await?;
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verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
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}
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Ok(())
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}
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async fn receive(
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&self,
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context: &LemmyContext,
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request_counter: &mut i32,
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) -> Result<(), LemmyError> {
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let object_community =
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get_or_fetch_and_upsert_community(&self.object, context, request_counter).await;
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// removing a community
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if let Ok(community) = object_community {
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if community.local {
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return Err(anyhow!("Only local admin can remove community").into());
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}
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let deleted_community = blocking(context.pool(), move |conn| {
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Community::update_removed(conn, community.id, true)
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})
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.await??;
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send_community_message(
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deleted_community.id,
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UserOperationCrud::RemoveCommunity,
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context,
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)
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.await
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}
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// removing community mod
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else if self.target.is_some() {
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let community =
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get_or_fetch_and_upsert_community(&self.cc[0], context, request_counter).await?;
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let remove_mod =
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get_or_fetch_and_upsert_person(&self.object, context, request_counter).await?;
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let form = CommunityModeratorForm {
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community_id: community.id,
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person_id: remove_mod.id,
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};
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blocking(context.pool(), move |conn| {
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CommunityModerator::leave(conn, &form)
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})
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.await??;
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let anybase = AnyBase::from_arbitrary_json(serde_json::to_string(self)?)?;
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community
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.send_announce(anybase, Some(self.object.clone()), context)
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.await?;
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// TODO: send websocket notification about removed mod
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Ok(())
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}
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// removing a post or comment
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else {
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match get_or_fetch_and_insert_post_or_comment(&self.object, context, request_counter).await? {
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PostOrComment::Post(post) => {
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let removed_post = blocking(context.pool(), move |conn| {
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Post::update_removed(conn, post.id, true)
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})
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.await??;
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send_post_message(removed_post.id, UserOperationCrud::EditPost, context).await
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}
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PostOrComment::Comment(comment) => {
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let removed_comment = blocking(context.pool(), move |conn| {
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Comment::update_removed(conn, comment.id, true)
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})
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.await??;
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send_comment_message(
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removed_comment.id,
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vec![],
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UserOperationCrud::EditComment,
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context,
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)
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.await
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}
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}
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}
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}
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fn common(&self) -> &ActivityCommonFields {
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&self.common
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}
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}
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